CN118479100A - Ribbon cutting device - Google Patents

Abstract

The invention provides a ribbon cutting device which is used for tensioning and cutting a ribbon, wherein the ribbon comprises a ribbon buckle and a ribbon body, one end of the ribbon body is connected with the ribbon buckle, and the other end of the ribbon body penetrates through the ribbon buckle; the clamping assembly can receive the ribbon body penetrating through the cutting slot and drive the ribbon body to move along the first direction so as to tighten the ribbon; when the ribbon body moves a certain distance along the first direction, the clamping assembly can drive the cutting assembly to cut off the portion of the ribbon body extending out of the ribbon buckle. The ribbon cutting device can directly cut the ribbon after automatically tensioning the ribbon, reduces manpower consumption and ensures the consistency of the tensioning degree and the cutting flatness of the ribbon.

Description

Ribbon cutting device

Technical Field

The invention relates to the technical field of binding machines, in particular to a binding belt cutting device.

Background

In the related art, a tie is generally used to tie up a hose, a fixed line, etc.; in the production process, a worker usually uses a tie gun to tighten the tie and cut the redundant part of the tie. In the above process, since the two processes of tightening and cutting the ribbon gun are all required to be driven by manual mode, the long-time operation of the ribbon gun tightens and cuts the ribbon, which not only easily causes hand fatigue, but also easily affects the tightening degree of the ribbon and the flatness of cutting.

Disclosure of Invention

The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the ribbon cutting device which can directly cut the ribbon after automatically tensioning the ribbon, so that the labor consumption is reduced, and the consistency of the tensioning degree and the cutting flatness of the ribbon is ensured.

According to a first aspect of the present invention, a band cutting device for tightening and cutting a band, the band including a band buckle and a band body, one end of the band body being connected to the band buckle, the other end passing through the band buckle, includes:

a guide bracket;

The cutting assembly comprises a first cutting piece and a second cutting piece; the first cutting piece comprises a first cutting part and a first cutting body, the first cutting body is rotationally connected with the guide bracket, and the first cutting part is connected with the first cutting body; the second cutting piece comprises a second cutting part and a second cutting body, the second cutting body is connected with the guide bracket, and the second cutting part is connected with the second cutting body; the first cutting part and the second cutting part are sequentially arranged along a second direction and define a cutting seam;

The clamping assembly comprises a moving piece, a traction piece, a clamping piece, a first elastic piece and a second elastic piece; the movable member has a standby position and a cutting position, the standby position and the cutting position being arranged along a first direction, the first direction being perpendicular to the second direction; the moving part is connected with the guide bracket in a sliding manner and can slide from the standby position to the cutting position along the first direction relative to the guide bracket, and the first cutting body is connected with the moving part in a transmission manner; the first elastic piece extends along the first direction, one end of the first elastic piece is connected with the guide bracket, the other end of the first elastic piece is connected with the moving piece, and the first elastic piece can provide elastic force for the moving piece in the reverse direction along the first direction; the clamping piece and the traction piece are arranged along the second direction and are positioned at one side of the first cutting part and one side of the second cutting part in the first direction; the clamping piece is rotationally connected to the moving piece, the rotation axis of the clamping piece relative to the rotation of the moving piece is a first rotation axis, the first rotation axis is parallel to a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; the clamping piece is provided with a clamping surface which is inclined relative to the first direction and faces the cutting seam; the second elastic piece is positioned at one side of the first rotation axis in the first direction, one end of the second elastic piece, which is opposite to the second direction, is connected to the moving piece, and the other end of the second elastic piece, which is opposite to the second direction, is abutted against the clamping piece; the traction piece is movably connected to the guide bracket, and is provided with a traction surface which is arranged opposite to the clamping surface and is positioned at one side of the cutting slit in the second direction;

When the moving piece is positioned at the standby position, the first cutting part and the second cutting part can be simultaneously abutted against the binding belt buckle, and one end of the binding belt body penetrating through the binding belt buckle can penetrate through the cutting joint and enter between the clamping surface and the traction surface along the first direction after penetrating through the cutting joint and is abutted against the clamping surface and the traction surface; the second elastic piece continuously pushes the clamping piece to be close to the traction piece and enables the part of the ribbon body, which is abutted against the clamping surface, to be continuously attached to the traction surface, and the traction piece can drive the part of the ribbon body, which is abutted against the clamping piece, to continuously move along the first direction through the traction surface; after a part of the preset length of the ribbon body enters the cutting slot, the traction piece can drive the clamping piece to move along the first direction through the ribbon body, so that the moving piece is driven to move along the first direction, the moving piece is enabled to move from the standby position to the cutting position, the moving piece drives the first cutting body to rotate relative to the guide support, and the first cutting portion is close to the second cutting portion and closes the cutting slot.

The ribbon cutting device provided by the embodiment of the invention has at least the following beneficial effects: when the binding belt is required to be tensioned and cut, a worker can insert one end of the binding belt body penetrating through the binding belt buckle from the cutting joint to the position between the clamping surface and the traction surface, and enable the binding belt buckle to be simultaneously abutted against the first cutting part and the second cutting part; the second elastic piece connected to the moving piece pushes the clamping piece, so that the clamping surface pushes the ribbon body along the second direction to enable the ribbon body to be attached to the traction surface, the traction piece can move the portion, attached to the traction piece, of the ribbon body along the traction surface to the first direction, and the whole ribbon is tensioned gradually. In the process that the ribbon is tensioned, as the ribbon buckle is abutted against the first cutting part and the second cutting part, the ribbon buckle can apply gradually increasing traction force to the ribbon body along the length direction of the ribbon body; the part of the ribbon body penetrating through the ribbon buckle is gradually tightened, so that the contact area of the ribbon body and the clamping piece is gradually increased until the ribbon body generates enough friction force to the clamping piece so as to drive the clamping piece and the moving piece to overcome the elastic force of the first elastic piece and move along the first direction; when the moving part moves from the standby position to the cutting position, the moving part can drive the first cutting part to rotate relative to the guide part through transmission connection with the first cutting part, so that the first cutting part is close to the second cutting part, and the cutting seam is closed and the ribbon body is cut off. In the process, the ribbon cutting device can automatically tighten the ribbon and cut the part of the ribbon body penetrating out of the ribbon buckle, so that the tightening degree of the ribbon and the consistency of cutting flatness are ensured; the staff only needs to make the ribbon body insert the cutting seam and get into between clamping face and the traction surface through the one end of the ribbon knot to make the ribbon knot butt in first cutting portion and second cutting portion simultaneously, the operation burden reduces by a wide margin.

According to some embodiments of the invention, the clamping assembly further comprises an adjusting member connected to the guide bracket, one end of the first elastic member is connected to the adjusting member, the other end of the first elastic member is connected to the moving member, and the adjusting member is capable of moving relative to the guide bracket along the first direction and the opposite direction of the first direction and remains relatively stationary with respect to the guide bracket during the movement of the moving member from the standby position to the cutting position.

According to some embodiments of the invention, one side of the tie body in the thickness direction has a tooth-like structure, the traction element extends in the first direction and is rotatably connected to the guide bracket, the rotation axis of the traction element relative to the guide bracket is a second rotation axis, and the second rotation axis is parallel to the first direction; the traction member comprises a threaded portion extending in the first direction and disposed around the second rotational axis, the threaded portion having a traction surface and being capable of engaging with the toothed structure of the tie body.

According to some embodiments of the invention, the guide bracket has a receiving channel extending in the first direction, the receiving channel having a receiving opening at an end opposite the first direction, the receiving opening communicating with the cutting slit; the band body enters the receiving opening after passing through the cutting opening, then enters the space between the clamping surface and the traction surface, the receiving channel can limit the band body to move reversely along the third direction and the third direction, and when the moving piece moves to the cutting position, the part of the band body attached to the traction surface is separated from the receiving channel.

According to some embodiments of the invention, the band cutting device further comprises a collection bin connected to the guide bracket, the collection bin having a receiving cavity; the end of the receiving channel in the first direction is communicated with the accommodating cavity.

According to some embodiments of the invention, the collecting bin is connected to one side of the guide bracket in the third direction, the guide bracket further has a collecting channel extending along the third direction, one end of the collecting channel is communicated with the end of the receiving channel in the first direction, and the other end of the collecting channel is communicated with the accommodating cavity.

According to some embodiments of the invention, the guide bracket further has a guide passage extending in the first direction, one end of the guide passage being communicated with the slit, the other end of the guide passage being communicated with the receiving opening; the area of the cross section of the inner wall of the guide channel perpendicular to the first direction is gradually reduced along the first direction, and the guide channel is used for guiding the ribbon body.

According to some embodiments of the invention, the rotation axis of the first cutting body relative to the guide bracket is a third rotation axis, and the first cutting portion is located on one side of the third rotation axis in the direction opposite to the first direction; the first cutting body is provided with a jacking surface which faces the moving piece and is inclined to the second direction, and the jacking surface is positioned at one side of the third rotation axis in the first direction; the moving piece pushes the jacking surface in the process of moving to the cutting position, and drives the first cutting body to rotate relative to the guide bracket.

According to some embodiments of the invention, the rotation axis of the first cutting body relative to the guide bracket is a third rotation axis, and the band cutting device includes a third elastic member connected to the guide bracket and located at one side of the third rotation axis opposite to the first direction, and the third elastic member abuts against the first cutting body and can apply an elastic force to the first cutting body opposite to the second direction; the first cutting body is also provided with a limiting plane, and the limiting plane faces the second direction; the moving part comprises a limiting part, the limiting part is positioned on one side of the third rotation axis in the first direction, and the limiting part is abutted to the limiting plane when the moving part is positioned at the standby position.

According to some embodiments of the invention, the first cutting body further has a limiting plane, the limiting plane facing the second direction and being located on one side of the third rotation axis in the first direction; the jacking surface is smoothly connected to one side of the limiting plane in the first direction, and the moving part is abutted against the limiting plane when in the standby position; and in the process of moving from the standby position to the cutting position, the moving piece abutting on the limiting plane transits to abut on the jacking surface.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The invention is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is an overall schematic view of a strap cutting apparatus according to some embodiments of the present invention;

FIG. 2 is a schematic illustration of the structure of the hidden handle and guide bracket portion of FIG. 1;

FIG. 3 is a schematic view of the stealth handle and guide bracket of FIG. 1;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is an enlarged partial schematic view of FIG. 4 at C;

FIG. 6 is a side view of alternative embodiments of a strap cutting device with a handle and guide brackets hidden;

FIG. 7 is a schematic cross-sectional view taken in a section perpendicular to the left-right direction in FIG. 1;

FIG. 8 is a schematic cross-sectional view of FIG. 1 taken in another cross-section perpendicular to the left-right direction;

Fig. 9 is a schematic sectional view formed in a section perpendicular to the up-down direction in fig. 1.

Reference numerals:

a handle 10, an electric control switch 20 and a ribbon body 30;

A guide bracket 100, a receiving channel 110, a receiving opening 111, a collecting channel 120, and a guide channel 130;

the cutting assembly 200, the first cutting member 210, the first cutting portion 211, the first cutting body 212, the lifting surface 2121, the limiting plane 2122, the third rotation axis 2123, the second cutting member 220, the second cutting portion 221, the second cutting body 222, the cutting slit 230, and the rotational connector 240;

The clamping assembly 300, the moving member 310, the standby position a, the cutting position B, the limiting portion 313, the traction member 320, the traction surface 321, the threaded portion 322, the second rotation axis 323, the clamping member 330, the clamping surface 331, the anti-slip groove 332, the first rotation axis 333, the first elastic member 340, the second elastic member 350, and the adjusting member 360;

A collection bin 400, a receiving chamber 410;

and a third elastic member 500.

Detailed Description

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.

In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present invention, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The present invention is described below with reference to fig. 1,2, 3, 4, and 7, wherein fig. 1,2, 3, 4, and 7 do not show a band, and the present invention provides a band cutting device for tightening and cutting a band, the band including a band buckle and a band body 30, one end of the band body 30 being connected to the band buckle, and the other end passing through the band buckle, including a guide bracket 100, a cutting assembly 200, and a clamping assembly 300.

Referring to fig. 1,2 and 4, the cutting assembly 200 includes a first cutting member 210 and a second cutting member 220; the first cutting member 210 includes a first cutting portion 211 and a first cutting body 212, the first cutting body 212 is rotatably connected to the guide bracket 100, and the first cutting portion 211 is connected to the first cutting body 212; the second cutting member 220 includes a second cutting portion 221 and a second cutting body 222, the second cutting body 222 is connected to the guide bracket 100, and the second cutting portion 221 is connected to the second cutting body 222; the first and second cutting portions 211 and 221 are sequentially arranged in the second direction and define a cutting slit 230.

For the function of the cutting slit 230, in particular, according to some embodiments of the present invention, the first cutting portion 211 and the second cutting portion 221 are arranged along the second direction (i.e., downward in fig. 1,2, and 4), the cutting slit 230 is defined between the first cutting portion 211 and the second cutting portion 221, the cutting slit 230 communicates with one side of the first cutting portion 211 and the second cutting portion 221 in the first direction (i.e., the front side in fig. 1,2, and 4) and the opposite side of the first direction (i.e., the rear side in fig. 1,2, and 4), and enables one end of the band body 30 passing through the band buckle to pass along the first direction.

Referring to fig. 2, 3 and 4, the clamping assembly 300 includes a moving member 310, a pulling member 320, a clamping member 330, a first elastic member 340 and a second elastic member 350; the moving member 310 has a standby position a and a cutting position B arranged along a first direction, the first direction being perpendicular to the second direction; the moving member 310 is slidably connected to the guide frame 100, and is capable of sliding from a standby position a to a cutting position B along a first direction relative to the guide frame 100, and the first cutting body 212 is drivingly connected to the moving member 310. The first elastic member 340 extends along a first direction, one end of the first elastic member 340 is connected to the guide bracket 100, the other end of the first elastic member 340 is connected to the moving member 310, and the first elastic member 340 can provide an elastic force to the moving member 310 in a direction opposite to the first direction.

Since the first elastic member 340 can apply an elastic force to the moving member 310 in a reverse direction to the first direction, the moving member 310 needs to overcome the elastic force applied by the first elastic member 340 in moving from the standby position a to the cutting position B in the first direction. According to some embodiments of the present invention, referring to fig. 2 and 3, the first elastic member 340 extends along a first direction (i.e. forward in fig. 3), a rear end of the first elastic member 340 is connected to the moving member 310, and a front end of the first elastic member 340 is connected to the guide bracket 100; the moving member 310 compresses the first elastic member 340 during the forward movement, so that the first elastic member 340 applies a backward elastic force to the moving member 310. According to other embodiments of the present invention, the moving member 310 stretches the first elastic member 340 during the forward movement, so that the first elastic member 340 applies a backward pulling force to the moving member 310.

Referring to fig. 3, the clamping member 330 and the pulling member 320 are arranged along the second direction and located at one side of the first cutting portion 211 and the second cutting portion 221 in the first direction.

It has been described above that the cutting slit 230 defined by the first cutting portion 211 and the second cutting portion 221 enables the end of the band body 30 passing through the band buckle to pass through in the first direction, and on the basis of the above embodiment, since the clamping member 330 and the pulling member 320 are located at one side of the first cutting portion 211 and the second cutting portion 221 in the first direction, the end of the band body 30 passing through the cutting slit 230 in the first direction can be in contact with the clamping member 330 and/or the pulling member 320.

Referring to fig. 3, 4 and 5, the clamping member 330 is rotatably connected to the moving member 310, the rotation axis of the clamping member 330 relative to the moving member 310 is a first rotation axis 333, the first rotation axis 333 is parallel to the third direction, and the first direction, the second direction and the third direction are perpendicular to each other; the holder 330 has a holding surface 331, the holding surface 331 being inclined with respect to the first direction and facing the cutting slit 230. The second elastic member 350 is located at one side of the first rotation axis 333 in the first direction, one end of the second elastic member 350 facing the second direction is connected to the moving member 310, and the other end of the second elastic member 350 facing the second direction can be abutted against the clamping member 330; the traction element 320 is movably connected to the guide bracket 100, the traction element 320 has a traction surface 321, and the traction surface 321 is disposed opposite to the clamping surface 331 and located at one side of the cutting slit 230 in the second direction.

The second elastic member 350 continuously applies an elastic force to both ends when being compressed, so that the clamping member 330 abutting against one end of the second elastic member 350 receives an elastic force in a second direction under the condition of no external force, and rotates around the first rotation axis 333, and the traction member 320 located near one side of the clamping member 330 in the second direction is simultaneously near the cutting slit 230; because the clamping surface 331 is inclined relative to the first direction and faces the cutting slit 230, when the band body 30 continues to advance toward the first direction to contact the clamping surface 331 after passing through the cutting slit 230 in the first direction, the pushing force of the band body 30 can make the clamping member 330 overcome the elastic force of the second elastic member 350 toward the second direction and drive the clamping member 330 to rotate, so that the clamping surface 331 is far away from the traction member 320 and far away from the cutting slit 230.

Referring to fig. 4 and 5, since the clamping surface 331 is inclined with respect to the first direction and faces the cutting slit 230, and the pulling surface 321 is located at one side of the cutting slit 230 in the second direction, the band body 30 can be bent in the second direction by the guiding action of the clamping surface 331 after contacting the clamping surface 331, and approaches the pulling member 320.

Referring to fig. 2,4 and 7, when the moving member 310 is at the standby position a, the first cutting portion 211 and the second cutting portion 221 can simultaneously abut against the buckle, and one end of the band body 30 passing through the buckle can pass through the cutting slit 230 and enter between the holding surface 331 and the traction surface 321 along the first direction after passing through the cutting slit 230, and abut against the holding surface 331 and the traction surface 321.

It should be noted that the invention is not limited to the particular manner in which the tie body 30 passes through one end of the tie strap buckle between the clamping face 331 and the pulling face 321. According to some embodiments of the present invention, referring to fig. 4 and 5, the band body 30 can abut against the clamping surface 331 and push the clamping member 330 to move forward and upward around the first rotation axis 333, and expose the traction surface 321, and the band body 30 can abut against the traction surface 321 while abutting against the clamping surface 331; according to other embodiments of the present invention, referring to fig. 6, the band body 30 can be abutted against the traction surface 321 first and simultaneously abutted against the clamping surface 331 during the advancing of the band body 30.

Referring to fig. 2,4 and 7, the second elastic member 350 continuously pushes the clamping member 330 to approach the pulling member 320, so that the portion of the band body 30 abutting against the clamping surface 331 continuously adheres to the pulling surface 321, and the pulling member 320 can drive the portion of the band body 30 abutting against the clamping member 330 to continuously move along the first direction through the pulling surface 321.

According to the invention, the traction surface 321 of the traction piece 320 drives the ribbon body 30 to move towards the first direction, so that more parts of the ribbon body 30 penetrate through the ribbon buckle, and the tension of the ribbon is realized. For the specific form of the traction surface 321 driving the band body 30, according to some embodiments of the present invention, as shown in fig. 4 and 5, the traction element 320 extends along a first direction and is rotationally connected to the guide bracket 100, the rotation axis of the traction element 320 relative to the rotation of the guide bracket 100 is a second rotation axis 323, and the second rotation axis 323 is parallel to the first direction; the pulling member 320 comprises a threaded portion 322, the threaded portion 322 extending in a first direction and being arranged around a second axis of rotation 323, the threaded portion 322 having a pulling face 321 and being capable of engaging with the toothed structure of the tie body 30. When the traction member 320 rotates about the second rotation axis 323, the traction surface 321 of the threaded portion 322 can drive the tooth-shaped structure contacting the traction surface 321 to advance in the first direction, thereby driving the band body 30 to advance, and in the above embodiment, the clamping plate continuously pushes the band body 30 in the second direction, so that the tooth-shaped structure of the band body 30 can be stably pushed by the traction surface 321 and advance in the first direction, and the portion of the band body 30 located between the first cutting portion 211 and the traction member 320 is bent in the second direction and engaged with the traction member 320, thereby enabling the traction surface 321 to continuously pull the band body 30 in the first direction.

It should be noted that the traction surface 321 in the present invention should be a partial surface of the threaded portion 322 that is capable of engaging with the tooth structure of the tie body 30 in the second direction, not all surfaces of the threaded portion 322. Specifically, referring to fig. 5, according to some embodiments of the present invention, after a portion of the band body 30 that was originally pushed by the clamping member 330 in the second direction is no longer acted upon by the clamping member 330, internal stress between the portions of the band body 30 may cause the portion of the band body 30 that was originally pushed by the clamping member 330 to move away from the threaded portion 322, and the threaded portion 322 may no longer apply a first direction of pushing force to the portion of the band body 30.

In accordance with other embodiments of the present invention, referring to fig. 6, the traction member 320 adopts a belt structure, and a surface of the belt facing the second direction is formed with a traction surface 321; when the conveyor belt rotates clockwise, the traction surface 321 continuously drives the tie body 30 to move in the first direction by friction force, and in the above embodiment, the clamping plate continuously pushes the tie body 30 in the second direction, so that the tie body 30 can receive sufficient friction force from the traction surface 321 and move in the first direction, as viewed in the direction toward the paper surface of fig. 6.

Other configurations for carrying out the traction surface 321 on the tie body 30 may be used by those skilled in the art without departing from the inventive concept. According to other embodiments of the present invention, referring to fig. 6, the traction member 320 adopts a belt structure, and teeth capable of engaging with the tooth-shaped structure on the band body 30 are uniformly arranged on the circumference of the belt structure, so that when the belt rotates clockwise, the belt body 30 can be driven to move in the first direction by the teeth on the belt structure.

For the power source of the traction element 320, since the traction element 320 only needs to continuously work to pull the band body 30, the band cutting device can drive the traction element 320 in the forms of electric power, pneumatic power, hydraulic power and the like to realize the automatic operation of the traction element 320 without departing from the concept of the invention. In some embodiments, referring to fig. 1 and 2, the ribbon cutting device further includes a handle 10 and an electric control switch 20, wherein a power source and a motor are disposed inside the handle 10, the power source, the electric control switch 20 and the motor are electrically connected with each other, the motor is used for driving the traction element 320, and a worker can start or stop driving the traction element 320 by controlling the electric control switch 20. The use of the electrically driven traction member 320 is more advantageous for the weight reduction of the strap cutting device than other drive forms, facilitating use by the staff.

It has been described that the pulling member 320 can continuously pull the band body 30 along the first direction through the pulling surface 321, and after a part of the preset length of the band body 30 enters the cutting slit 230, the pulling member 320 can drive the clamping member 330 to move along the first direction through the band body 30, so as to drive the moving member 310 to move along the first direction, so that the moving member 310 moves from the standby position a to the cutting position B, the moving member 310 drives the first cutting body 212 to rotate relative to the guide bracket 100, and the first cutting portion 211 approaches the second cutting portion 221 and closes the cutting slit 230.

Referring to fig. 5, specifically, for a band to be tensioned to a certain extent, since the band buckle is abutted against the first cutting portion 211 and the second cutting portion 221, when the band body 30 moves in the first direction, more portion of the band body 30 passes through the band buckle, so that the band is gradually tensioned, the portion of the band body 30 passing through the band buckle is gradually tensioned by the end of the band body 30 near the band buckle, and the friction force of the portion of the band body 30 passing through the band buckle is gradually increased, so that the portion between the cutting slit 230 and the clamping member 330 (i.e. the portion between the position where the clamping member 330 presses the band body 30 and the cutting slit 230 in fig. 5) is gradually straightened by the combined action of the traction force of the clamping member 330 and the force of the clamping member 320, and the friction force of the portion against the clamping member 330 is gradually increased along the first direction.

For the treatment of the surface of the clamping surface 331, a person skilled in the art may provide anti-slip lines on the clamping surface 331 to increase the friction of the clamping surface 331 against the tie body 30. As a preferred solution, referring to fig. 5, in some embodiments, the clamping member 330 has a plurality of anti-slip grooves 332, and the anti-slip grooves 332 extend along the third direction and are disposed on the clamping surface 331. Above-mentioned scheme is on the basis of increasing clamping face 331 roughness, when ribbon body 30 enters into anti-skidding groove 332 because of self deformation, anti-skidding groove 332's inner wall also can apply the effort towards the first direction to ribbon body 30, avoids ribbon body 30 to follow the reverse removal of first direction.

It has been described above that the moving member 310 needs to overcome the elastic force applied by the first elastic member 340 in moving from the standby position a to the cutting position B in the first direction. After a portion of the preset length of the tie body 30 enters the cut-out slit 230, the tie has been tensioned to a certain extent; the friction force applied to the clamping member 330 by the band body 30 can overcome the elastic force of the first elastic member 340, and the moving member 310 starts to move from the standby position a in the first direction. In the process that the moving member 310 moves from the standby position a to the cutting position B, the clamping member 330 connected to the moving member 310 continuously pushes the band body 30 towards the second direction, and the band body 30 is continuously moved along the first direction under the influence of the clamping member 330 and the traction member 320, so that the band is further tensioned to a preset degree; meanwhile, the moving member 310 drives the first cutting body 212 to rotate through the transmission connection with the first cutting body 212, and the first cutting portion 211 connected to the first cutting body 212 rotates together.

The degree of tension of the first elastic member 340 can be reasonably preset by a person skilled in the art to adjust the amount of elastic force that the moving member 310 needs to overcome before moving in the first direction without departing from the inventive concept. As a preferred solution, referring to fig. 3, 4 and 7, in some embodiments, the clamping assembly 300 further includes an adjusting member 360, the adjusting member 360 is connected to the guide bracket 100, one end of the first elastic member 340 is connected to the adjusting member 360, the other end of the first elastic member 340 is connected to the moving member 310, and the adjusting member 360 can move relative to the guide bracket 100 along the first direction and the opposite direction of the first direction and remain relatively stationary with respect to the guide bracket 100 during the movement of the moving member 310 from the standby position a to the cutting position B. The operator can move the adjusting member 360 in the first direction and the opposite direction of the first direction with respect to the guide bracket 100 and simultaneously increase or decrease the elastic force of the first elastic member 340, thereby adjusting the tightening degree of the band cutting device with respect to the band. In some embodiments, the adjustment member 360 is threadably coupled to the guide bracket 100, and a worker can move the adjustment member 360 relative to the guide bracket 100 in a first direction and opposite the first direction by rotating the adjustment member 360. In other embodiments, the adjustment member 360 can be fixed in relative position to the guide bracket 100 by a pin, and a worker can pull the pin to move the adjustment member 360 relative to the guide bracket 100 in a first direction and in a direction opposite to the first direction.

When the moving member 310 moves to the cutting position B, the first cutting portion 211 contacts with the second cutting portion 221 and closes the cutting slit 230, and the portion of the band body 30 protruding with respect to the band buckle is cut by the first cutting portion 211 and the second cutting portion 221.

The moving member 310 adjusts the rotational position of the first cutting portion 211 through a driving connection with the first cutting body 212, and finally closes the cutting slit 230. The present invention is not limited to the transmission connection relationship between the moving member 310 and the first cutting body 212 without departing from the concept of the present invention, and one skilled in the art can combine the conventional technical means to realize the transmission of the moving member 310 to the first cutting body 212.

In particular, as a preferred embodiment of the driving connection between the first cutting member 212 and the moving member 310, in some embodiments, as shown in fig. 8 and 9, the first cutting member 212 is rotatably connected to the guide bracket 100 through the rotating connection member 240, and the rotating axis of the first cutting member 212 of the guide bracket 100 relative to the guide bracket 100 is the third rotating axis 2123, so that the third rotating axis 2123 is within the rotating connection member 240; the first cutout 211 is located on one side of the third rotational axis 2123 in the opposite direction to the first direction; the first cutting body 212 has a lifting surface 2121, the lifting surface 2121 faces the moving member 310 and is inclined to the second direction, and the lifting surface 2121 is located at one side of the third rotation axis 2123 in the first direction; the moving member 310 pushes the lifting surface 2121 to rotate the first cutting body 212 relative to the guide frame 100 during moving to the cutting position B. In the process of moving the moving member 310 to the cutting position B, a supporting force is applied to the lifting surface 2121 of the first cutting member 212, and since the lifting surface 2121 is inclined to the second direction, the supporting force applied to the first cutting member 212 includes a component force reversed along the second direction, the lifting surface 2121 of the first cutting member 212 moves in the opposite direction along the second direction, and the first cutting portion 211 moves in the second direction and approaches the second cutting portion 221, so that the cutting slit 230 is finally closed. The above embodiment directly realizes the movement of the first cutting portion 211 through the supporting function of the moving member 310 on the first cutting body 212, which is simpler in structure and beneficial to reducing the production cost.

The process of tightening and cutting the tie by the tie cutting device has been fully described above. In the process, the ribbon cutting device can automatically tension the ribbon and cut the part of the ribbon body 30 penetrating out of the ribbon buckle, so that the tension degree of the ribbon and the consistency of cutting flatness are ensured; the operator only needs to insert the band body 30 into the cutting slit 230 through one end of the band buckle and between the clamping surface 331 and the traction surface 321, and make the band buckle simultaneously abut against the first cutting portion 211 and the second cutting portion 221, and the operation load is greatly reduced.

On the basis of the scheme, other improvements can be made on the ribbon cutting device.

Further, referring to fig. 8 and 9, in some embodiments, the rotation axis of the first cutting body 212 relative to the guide bracket 100 is a third rotation axis 2123, the band cutting device includes a third elastic member 500, the third elastic member 500 is connected to the guide bracket 100 and located at one side of the third rotation axis 2123 in the opposite direction of the first direction, the third elastic member 500 abuts against the first cutting body 212, and can apply an elastic force to the first cutting body 212 in the opposite direction of the second direction; the first cutting body 212 further has a limiting plane 2122, and the limiting plane 2122 faces the second direction; the movable member 310 includes a limiting portion 313, the limiting portion 313 is located at one side of the third rotation axis 2123 in the first direction, and the limiting portion 313 abuts against the limiting plane 2122 when the movable member 310 is at the standby position a. In the above embodiment, when the moving member 310 is at the standby position a, the third elastic member 500 applies an elastic force to the first cutting body 212, so that the first cutting portion 211 is prevented from directly contacting the second cutting portion 221 and closing the cutting slit 230 without receiving other external forces, and the band body 30 is prevented from being unable to pass through the cutting slit 230; on the other hand, the limiting portion 313 of the moving member 310 can abut against the limiting plane 2122, so as to control the opening degree of the cutting slit 230, and ensure that the buckle can abut against the first cutting portion 211 and the second cutting portion 221 at the same time.

As mentioned above, the first cutting portion 211 is moved by supporting the lifting surface 2121 by the moving member 310, and on the basis of the above-mentioned solutions, as shown in fig. 2, 7 and 8, the first cutting body 212 further has a limiting plane 2122, where the limiting plane 2122 faces the second direction and is located at one side of the third rotation axis 2123 in the first direction; the lifting surface 2121 is smoothly connected to one side of the limit plane 2122 in the first direction; the moving member 310 abuts against the limit plane 2122 at the standby position; in the process of moving from the standby position a to the cutting position B, the moving member 310 abutting against the limiting plane 2122 transitions to abutting against the rising surface 2121. Through the above scheme, in the process of moving the moving member 310 from the standby position a to the cutting position B, that is, before the first cutting portion 211 and the second cutting portion 221 cut the band body 30, the opening degree of the cutting slit 230 is limited by the limiting plane 2122 and does not increase, so that the band buckle can be stably abutted against the first cutting portion 211 and the second cutting portion 221 in the cutting process. On the other hand, during the movement along the first direction, the moving member 310 will sequentially abut against the limiting plane 2122 and the lifting surface 2121, and finally push the lifting surface 2121 and drive the first cutting body 212 to rotate relative to the guide bracket 100; the contact position of the moving member 310 and the first cutting body 212 can be changed by the movement of the moving member 310 along the first direction, so that the moving member 310 can adjust the gesture of the first cutting body 212 in the moving process along the first direction, thereby adjusting the opening size of the cutting slit 230, and realizing the cutting function of the band cutting device on the band body 30.

Further, referring to fig. 7 and 9, in some embodiments, the guide bracket 100 has a receiving channel 110, the receiving channel 110 extends along a first direction, the receiving channel 110 has a receiving opening 111 at an opposite end of the first direction, and the receiving opening 111 is in communication with the cutting slit 230; the band body 30 enters the receiving opening 111 after passing through the cutting slit 230, and then enters between the clamping surface 331 and the pulling surface 321, and the receiving channel 110 can limit the movement of the band body 30 in the third direction and the reverse direction, so that when the moving member 310 moves to the cutting position B, the portion of the band body 30 attached to the pulling surface 321 is separated from the receiving channel 110. The receiving channel 110 of the above embodiment can limit the movement of the band body 30 in the third direction and the reverse direction by the inner wall, thereby ensuring that the band body 30 is not separated from between the clamping member 330 and the pulling member 320 during the pulling of the band body 30 by the pulling member 320.

Further, in some embodiments, the strap cutting device further includes a collection bin 400, the collection bin 400 being connected to the guide bracket 100, the collection bin 400 having a receiving cavity 410; the end of the receiving channel 110 in the first direction communicates with the receiving chamber 410. Through above scheme, hold chamber 410 can collect the ribbon body 30 and follow the part after receiving channel 110 breaks away from, avoid being broken away from ribbon cutting device by ribbon body 30 after the cutting, cause the pollution to operational environment.

Referring to fig. 1 and 9, in some embodiments, the collecting bin 400 is connected to one side of the guide bracket 100 in the third direction, the guide bracket 100 further has a collecting channel 120, the collecting channel 120 extends along the third direction, one end of the collecting channel 120 is connected to the end of the receiving channel 110 in the first direction, and the other end of the collecting channel 120 is connected to the accommodating cavity 410. The collection channel 120 is configured to receive the tie body 30 from the receiving channel 110 such that the tie body 30 is guided into the receiving cavity 410 by the inner wall of the collection channel 120 after entering the collection channel 120. The collection channel 120 can change the transport direction of the tie body 30 such that the collection bin 400 can be disposed on one side of the receiving channel 110 in the third direction, thereby reducing the footprint of the tie cutting device in the first direction as well as the second direction.

Referring to fig. 9, further, in some embodiments, the guide bracket 100 further has a guide channel 130, the guide channel 130 extends along the first direction, one end of the guide channel 130 is connected to the cutting slit 230, and the other end of the guide channel 130 is connected to the receiving opening 111; the area of the cross section of the inner wall of the guide channel 130 perpendicular to the first direction is gradually reduced in the first direction, and the guide channel 130 is used for guiding the tie body 30. The guiding action of the guide channel 130 on the tie body 30 can make the end of the tie body 30 more accessible between the clamping member 330 and the pulling member 320, thereby facilitating the operation of the staff. On the other hand, the extension length of the cutting slit 230 in the third direction and the opposite direction can be adjusted according to the maximum distance of the guide channel 130 in the third direction, so that one end of the band body 30 can enter the cutting slit 230 more easily.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present invention. Furthermore, embodiments of the invention and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. Ribbon cutting device, its characterized in that is used for taut and cuts the ribbon, and the ribbon includes ribbon buckle and ribbon body, and the one end of ribbon body is connected in the ribbon buckle, and the other end passes the ribbon buckle, includes:

a guide bracket;

The cutting assembly comprises a first cutting piece and a second cutting piece; the first cutting piece comprises a first cutting part and a first cutting body, the first cutting body is rotationally connected with the guide bracket, and the first cutting part is connected with the first cutting body; the second cutting piece comprises a second cutting part and a second cutting body, the second cutting body is connected with the guide bracket, and the second cutting part is connected with the second cutting body; the first cutting part and the second cutting part are sequentially arranged along a second direction and define a cutting seam;

The clamping assembly comprises a moving piece, a traction piece, a clamping piece, a first elastic piece and a second elastic piece; the movable member has a standby position and a cutting position, the standby position and the cutting position being arranged along a first direction, the first direction being perpendicular to the second direction; the moving part is connected with the guide bracket in a sliding manner and can slide from the standby position to the cutting position along the first direction relative to the guide bracket, and the first cutting body is connected with the moving part in a transmission manner; the first elastic piece extends along the first direction, one end of the first elastic piece is connected with the guide bracket, the other end of the first elastic piece is connected with the moving piece, and the first elastic piece can provide elastic force for the moving piece in the reverse direction along the first direction; the clamping piece and the traction piece are arranged along the second direction and are positioned at one side of the first cutting part and one side of the second cutting part in the first direction; the clamping piece is rotationally connected to the moving piece, the rotation axis of the clamping piece relative to the rotation of the moving piece is a first rotation axis, the first rotation axis is parallel to a third direction, and the first direction, the second direction and the third direction are perpendicular to each other; the clamping piece is provided with a clamping surface which is inclined relative to the first direction and faces the cutting seam; the second elastic piece is positioned at one side of the first rotation axis in the first direction, one end of the second elastic piece, which is opposite to the second direction, is connected to the moving piece, and the other end of the second elastic piece, which is opposite to the second direction, is abutted against the clamping piece; the traction piece is movably connected to the guide bracket, and is provided with a traction surface which is arranged opposite to the clamping surface and is positioned at one side of the cutting slit in the second direction;

When the moving piece is positioned at the standby position, the first cutting part and the second cutting part can be simultaneously abutted against the binding belt buckle, and one end of the binding belt body penetrating through the binding belt buckle can penetrate through the cutting joint and enter between the clamping surface and the traction surface along the first direction after penetrating through the cutting joint and is abutted against the clamping surface and the traction surface; the second elastic piece continuously pushes the clamping piece to be close to the traction piece and enables the part of the ribbon body, which is abutted against the clamping surface, to be continuously attached to the traction surface, and the traction piece can drive the part of the ribbon body, which is abutted against the clamping piece, to continuously move along the first direction through the traction surface; after a part of the preset length of the ribbon body enters the cutting slot, the traction piece can drive the clamping piece to move along the first direction through the ribbon body, so that the moving piece is driven to move along the first direction, the moving piece is enabled to move from the standby position to the cutting position, the moving piece drives the first cutting body to rotate relative to the guide support, and the first cutting portion is close to the second cutting portion and closes the cutting slot.

2. The strap cutting apparatus of claim 1 wherein the clamping assembly further comprises an adjustment member coupled to the guide bracket, one end of the first resilient member being coupled to the adjustment member and the other end of the first resilient member being coupled to the moving member, the adjustment member being movable relative to the guide bracket in the first direction and in a direction opposite the first direction and remaining relatively stationary with the guide bracket during movement of the moving member from the standby position to the cutting position.

3. The band cutting device according to claim 1, wherein a side of the band body in a thickness direction has a tooth-shaped structure, wherein the traction member extends in the first direction and is rotatably connected to the guide bracket, a rotation axis of the traction member with respect to the guide bracket is a second rotation axis, the second rotation axis being parallel to the first direction; the traction member comprises a threaded portion extending in the first direction and disposed around the second rotational axis, the threaded portion having a traction surface and being capable of engaging with the toothed structure of the tie body.

4. The strap cutting apparatus of claim 1 wherein the guide bracket has a receiving channel extending in the first direction, the receiving channel having a receiving opening at an end opposite the first direction, the receiving opening being in communication with the cutting slot; the band body enters the receiving opening after passing through the cutting opening, then enters the space between the clamping surface and the traction surface, the receiving channel can limit the band body to move reversely along the third direction and the third direction, and when the moving piece moves to the cutting position, the part of the band body attached to the traction surface is separated from the receiving channel.

5. The strap cutting apparatus of claim 4 further comprising a collection bin connected to the guide bracket, the collection bin having a receiving cavity; the end of the receiving channel in the first direction is communicated with the accommodating cavity.

6. The band cutting device of claim 5, wherein the collection bin is connected to a side of the guide bracket in the third direction, the guide bracket further having a collection channel extending in the third direction, one end of the collection channel being in communication with an end of the receiving channel in the first direction, the other end of the collection channel being in communication with the receiving cavity.

7. The strap cutting apparatus of claim 4 wherein the guide bracket further has a guide channel extending in the first direction, one end of the guide channel communicating with the cutting slit and the other end of the guide channel communicating with the receiving slot; the area of the cross section of the inner wall of the guide channel perpendicular to the first direction is gradually reduced along the first direction, and the guide channel is used for guiding the ribbon body.

8. The band cutting device of claim 1, wherein the rotational axis of the first cutting body relative to the guide bracket is a third rotational axis, the first cutting portion being located on a side of the third rotational axis opposite the first direction; the first cutting body is provided with a jacking surface which faces the moving piece and is inclined to the second direction, and the jacking surface is positioned at one side of the third rotation axis in the first direction; the moving piece pushes the jacking surface in the process of moving to the cutting position, and drives the first cutting body to rotate relative to the guide bracket.

9. The band cutting device of claim 1, wherein the rotational axis of the first cutting body relative to the guide bracket is a third rotational axis, the band cutting device comprising a third elastic member connected to the guide bracket and located on a side of the third rotational axis in a direction opposite to the first direction, the third elastic member being abutted against the first cutting body and capable of applying an elastic force to the first cutting body in a direction opposite to the second direction; the first cutting body is also provided with a limiting plane, and the limiting plane faces the second direction; the moving part comprises a limiting part, the limiting part is positioned on one side of the third rotation axis in the first direction, and the limiting part is abutted to the limiting plane when the moving part is positioned at the standby position.

10. The strap cutting apparatus of claim 8 wherein the first cutting body further has a limiting plane, the limiting plane facing the second direction and being located on a side of the third axis of rotation in the first direction; the jacking surface is smoothly connected to one side of the limiting plane in the first direction, and the moving part is abutted against the limiting plane when in the standby position; and in the process of moving from the standby position to the cutting position, the moving piece abutting on the limiting plane transits to abut on the jacking surface.