JP3114412U - Flexible tube end cut device - Google Patents

Abstract

Provided is a flexible tube end cutting device capable of accurately maintaining a clearance between a temporary clamp and a cutting blade and arranging a cutting blade very accurately at cutting positions at both ends of the tube fixed to the temporary clamp. To do.
A movable body 20 supported on a support base 10 via a support shaft 11 is provided. The movable body 20 swings to the cutting position of the flexible tube P. A cutter mechanism 30 is provided on the movable body 20. The cutter mechanism 30 cuts both corners of the flexible tube P open end P1. A position adjusting mechanism 40 that holds the cutter mechanism 30 and moves it in a substantially horizontal direction is provided. The position adjusting mechanism 40 includes a position adjusting guide 43, and each cutter mechanism 30 moves until each guide 43 comes into contact with both sides of the flexible tube P fixed to the temporary clamp Q. Set the cutting position automatically.
[Selection] Figure 1

Description

  The present invention relates to an improvement of an end cutting device for a flexible tube for producing a squeeze tube used in cosmetics, medical products, industrial products, etc. and a flexible tube to be blow-molded. The present invention relates to a flexible tube end cutting device capable of accurately adjusting the vertical clearance and the left and right positions with respect to the flexible tube.

  Flexible squeezed tubes are used as containers for filling liquid or cream foods, toothpastes, adhesives, cosmetics, and the like. This type of tube is a hollow cylindrical container made of a flexible material such as polyurethane. A cap is attached to one end, the contents are filled from the opening at the other end, and then the opening is hermetically sealed. Are commercialized.

  When this filling seal opening is crimped with a temporary clamp to hermetically seal the opening, both ends of the opening spread outward beyond the width of the original seal, and protrusions are formed at the left and right corners of the seal. Become. In this state, when the seal end is heat-sealed, the protrusions on the left and right ends of the seal part become more prominent, and such protrusions are not only dangerous for the user, but also the shrink packaging for covering and squeezing the squeezed tube is broken. It was a cause.

  Therefore, the inventor has proposed an end seal device and a flexible tube end cut device described in Patent Document 1 or Patent Document 2.

  Patent Document 1 relates to an end seal device for a flexible tube previously proposed by the inventor, and describes a device that cuts the temporarily clamped opening end into an arbitrary shape. This cutting apparatus is an apparatus using an independent adjusting blade that cuts both ends of the opening end portion, or a fixed blade that cuts integrally from both ends of the temporarily clamped opening end portion to the upper end edge portion. When the adjusting blade is used, it is possible to change the cutting angle, and by using the fixed blade, the cutting position can be freely adjusted according to the diameter size of the flexible tube.

Patent Document 2 is a further improvement of the above Patent Document 1 by the present inventor. A movable body supported by a support base via a support shaft, and a flexible tube opening end mounted on the movable body. And a cutter mechanism that cuts both corners. The movable body swings from above the opening end of the temporarily clamped flexible tube so as to contact the upper surface of the temporary clamp, and both corners of the opening end at the position where the movable body contacts the upper surface of the temporary clamp. Is to cut.
JP 2003-26126 A JP 2005-41490 A

  However, as in Patent Documents 1 and 2, the clearance between the temporary clamp and the cutting blade is used to fix the opening end of the tube container with a temporary clamp and accurately cut off the corners generated at both ends of the opening end. Must be kept extremely accurate. That is, the tube container is heat-sealed after the temporary clamp catches the opening while being sequentially conveyed by the conveyance table, and the corner of the opening is cut. Therefore, if the clearance between the temporary clamp and the cutting blade is not accurately maintained, the cutting blade contacts the temporary clamp and damage occurs, or the part away from the predetermined position is cut and defective. Inconveniences such as occurrence occurred.

  The improvement by the inventor of Patent Document 2 succeeded in accurately maintaining the clearance between the temporary clamp and the cutting blade, and the inconvenience that the cutting blade contacted the temporary clamp and caused breakage could be solved. However, when the clearance between the temporary clamp and the cutting blade becomes accurate in this way, the position of the tube container that is fixed to the temporary clamp is slightly shifted, and the cutting positions at the corners at both ends also change slightly. Turned out to be. That is, when the temporary clamp clamps the tube containers to be conveyed one after the other, if the position of the tube container is shifted along the longitudinal direction of the temporary clamp, the cutting positions of the corners at both ends are not symmetrical. It will occur.

  In this way, in the cutting device that cuts off the corners of the flexible tube, the clearance between the temporary clamp for fixing the flexible tube and the cutting blade is accurately maintained, and cutting is performed at both ends of the tube fixed to the temporary clamp. Means for accurately arranging the blades has become an important issue.

  Therefore, the present invention was created to solve the above-mentioned problems. In the cutting device for cutting the end of the flexible tube, the clearance between the temporary clamp and the cutting blade is accurately maintained and fixed to the temporary clamp. Another object of the present invention is to provide a flexible tube end-cutting device capable of extremely accurately arranging cutting blades at the cutting positions at both ends of the tube.

  In order to achieve the above object, the end cutting device according to the first means of the present invention has an opening end P1 of the flexible tube P sandwiched between the temporary clamps Q and protrudes above the temporary clamps Q. In a cutting device that cuts both corners of a part at an arbitrary angle, a support base 10 provided on a base 13 via a support shaft 11 so as to be swingable up and down, and a slide rail mounted horizontally on the support base 10 45, a pair of left and right position adjusting mechanisms 40 mounted via 45, a pair of left and right movable bodies 20 slidably supported on slide rails 45 of the position adjusting mechanism 40, and mounted on each movable body 20 for flexibility. A pair of left and right cutter mechanisms 30 that cuts both corners of the tube P opening end P1, and the position adjustment mechanism 40 includes a guide 43 for position adjustment, and is a flexible tube P fixed to the temporary clamp Q. On both sides The movable body 20 is horizontally moved until the guide 43 comes into contact, and the cutting position of the cutter mechanism 30 is automatically adjusted. The cutter mechanism 30 is arranged along the slide rail 33 with the fixed blade 31 and the movable blade 32. The movable blades 31 of the cutter mechanism 30 are slid and moved after the movable body 20 is swung to the cutting position of the flexible tube P and the position adjusting mechanism 40 adjusts the cutting position. Thus, the flexible tube P is provided so as to cut both corners of the open end P1.

  The position adjusting mechanism 40 in the second means includes a guide 43 that is attached to each cutter mechanism 30 and detects the position of the flexible tube P, and the tip of the guide 43 is fixed to the temporary clamp Q. The movable body 20 is provided so as to automatically stop moving at a position in contact with P.

  The position adjusting mechanism 40 of the third means has a slide block 41 provided at the base end portion of the movable body 20, and the movable body 20 is slidably mounted on the slide rail 45 via the slide block 41. The movable body 20 is pressed toward the opening end P1 of the flexible tube P by the urging force of the pressing spring 42 that presses the slide block 41, and the flexible tube P is cut by the cutter mechanism 30. A cylinder 44 is provided to return the valve to the original position.

  The fourth means is that the cutter mechanism 30 is provided with a cut waste suction nozzle 37 for sucking waste generated from the cut position of the flexible tube P and a static elimination nozzle guide 38 for removing static electricity generated at the cut position. It is a means for resolving.

  According to the present invention, the movable body 20 swings to the cutting position, and the vertical clearance between the flexible tube P and the cutting blade is accurately maintained, and the cutter is matched to the position of the flexible tube P to which the temporary clamp Q is sandwiched. Since the left and right positions of the mechanism 30 are adjusted, the open end P1 of the flexible tube P can be cut at an extremely accurate position.

  Further, the position adjusting mechanism 40 is provided so as to automatically stop the movement of the cutter mechanism 30 at a position where the tip of the guide 43 contacts the flexible tube P fixed to the temporary clamp Q. Even if the position of the flexible tube P to be shifted is shifted in the lateral direction, the position of the cutter mechanism 30 can be automatically corrected.

  Moreover, since the cutting scrap suction nozzle 37 and the static elimination nozzle guide 38 are provided in the cutter mechanism 30, even if the flexible tube P is continuously cut, these chips and cutting scraps can be processed normally. There is no need to interfere, and stable processing can be performed for a long time.

  Thus, according to the present invention, in the cutting device for cutting the end portion of the flexible tube, the vertical clearance between the flexible tube and the cutting blade is kept extremely accurate, and the cutting blade is accurately positioned at the cutting positions at both ends of the tube. It is possible to place the flexible tube on the opening end of the flexible tube at a very accurate position.

  In the best mode of the present invention, a support base 10 that can swing up and down is provided on a base 13 via a support shaft 11. A pair of left and right position adjusting mechanisms 40 mounted on the support base 10 via slide rails 45 mounted horizontally are provided. A pair of left and right movable bodies 20 slidably supported on the slide rail 45 of the position adjusting mechanism 40 are provided. A pair of left and right cutter mechanisms 30 that are attached to each movable body 20 and cuts both corners of the flexible tube P opening end P1 are provided. The position adjustment mechanism 40 includes a position adjustment guide 43. The movable body 20 is horizontally moved until the guides 43 come into contact with both sides of the flexible tube P fixed to the temporary clamp Q, and the cutting position of the cutter mechanism 30 is automatically adjusted. The cutter mechanism 30 is disposed so that the fixed blade 31 and the movable blade 32 face each other along the slide rail 33. The movable body 20 is swung to the cutting position of the flexible tube P, and after the position adjusting mechanism 40 adjusts the cutting position, each movable blade 31 of the cutter mechanism 30 slides to open the opening end of the flexible tube P. The two corners of the part P1 are provided so as to be cut. The position adjustment mechanism 40 includes a guide 43 that is attached to each cutter mechanism 30 and detects the position of the flexible tube P. By providing the tip of the guide 43 so as to automatically stop the movement of the movable body 20 at the position where the tip of the guide 43 is in contact with the flexible tube P fixed to the temporary clamp Q, the initial purpose is achieved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The main configuration of the device according to the present invention includes a support base 10, a movable body 20, a cutter mechanism 30, a position adjusting mechanism 40, and a shock absorber 50 (see FIG. 1).

  The support 10 is supported by a pair of left and right movable bodies 20 via a support shaft 11 so as to be swingable up and down with respect to the base 13 (see FIG. 1). The support base 10 is provided on the base 13 so as to be swingable up and down via a support shaft 11. The illustrated support shaft 11 is attached to the bearing block 12 via a thrust bearing 11A and an oilless bearing 11B (see FIG. 5). Further, a compression spring 11C is attached to the end portion of the support shaft 11 protruding from the bearing block 12, and the support shaft 11 is pressed toward the one side with a constant pressing force to prevent lateral shaking of the support shaft 11, which will be described later. The adjustment accuracy of the adjusting mechanism 40 is increased.

  A pair of left and right position adjustment mechanisms 40 are mounted via a slide rail 45 mounted horizontally on the support base 10. Further, a pair of left and right movable bodies 20 are slidably supported on the slide rail 45, and a pair of left and right cutter mechanisms 30 that are attached to the respective movable bodies 20 and cut both corners of the flexible tube P opening end portion P1 are provided. ing. Further, a shock absorber 50 described later is mounted on the upper portion of the support base 10.

  The movable body 20 swings up and down with the support shaft 10 mounted with the slide rail 45 about the support shaft 11 as a fulcrum, and cuts the flexible tube P from above the open end P1 of the temporarily clamped flexible tube P. It has an interval holding body that swings to a position and maintains the vertical clearance between the flexible tube P and the cutting blade (see FIG. 1). The movable body 20 is pulled up by a tension coil spring mounted on the support base 10 above the support shaft 11 and is movable by pressing and urging the base end of the movable body 20 with a shock absorber 50 mounted on the upper portion of the support base. It is provided so that the body 20 can be lowered. In the illustrated movable body 20, a substantially horizontal pace plate 21 is swingably provided on a support shaft 11, a rising bracket 23 is provided on the pace plate 21, and a shock absorber 50 is pressure-bonded to the rising bracket 23 ( (See FIG. 2). The clearance between the flexible tube P and the cutting blade is adjusted by a fixed plate 56 provided on the movable body 20. That is, the fixed plate 56 keeps a necessary clearance by contacting the base 13 after the movable body 20 has moved to a substantially horizontal position (see FIG. 1).

  The position adjusting mechanism 40 is provided so that each cutter mechanism 30 moves by adjusting the position of the movable body 20 until the guide 43 comes into contact with the flexible tube P fixed to the temporary clamp Q (FIG. 2). reference). The illustrated guide 43 is provided in the cutter mechanism 30. Further, a slide block 41 that moves along the slide rail 45 is provided. And the movable body 20 is connected with this slide block 41 (refer FIG. 4). The slide block 41 is pressed and biased in the direction of the temporary clamp Q by the pressing spring 42 and slides at a position where the tip of the guide 43 provided in each cutter mechanism 30 contacts the flexible tube P fixed to the temporary clamp Q. Block 41 is provided to stop (see FIG. 4). Thereafter, after the cutter mechanism 30 cuts the corner portion of the flexible tube P, the movable body 20 is held in a state where the movable body 20 is returned to the original position by the operation of the cylinder 44. When the cylinder 44 is released, the pressing spring 42 presses the slide block 41 again, and the movable body 20 stops at the position where the guide 43 contacts the flexible tube P.

  The cutter mechanism 30 is attached to two attachment plates 22 provided in parallel to the pace plate 21 of the movable body 20. The mounting plate 22 moves in the horizontal direction along the pace plate 21 via the position adjusting mechanism 40 to adjust the cutting position of the cutter mechanism 30 (see FIG. 2). That is, after the movable body 20 swinging from above is fixed at the cutting height by the fixed plate 56, and the position adjusting mechanism 40 adjusts the left and right cutting positions, both corners of the flexible tube P open end P1. It is provided to cut the part. The cutter mechanism 30 opposes the fixed blade 31 and the movable blade 32 along the slide rail 33, and cuts the open end P1 by the sliding movement of the movable blade 32 (see FIG. 1). In the illustrated cutter mechanism 30, a fixed blade bracket 34 and a movable blade bracket 35 are mounted on a slide rail 33 provided on the movable body 20, and the fixed blade 31 and the movable blade 32 face each bracket 34, 35. (See FIG. 2). The fixed blade bracket 34 is fixed, and a sliding cylinder 36 is mounted on the movable blade bracket 35 that moves along the slide rail 33, and the movable blade bracket 35 is slid by the operation of the cylinder 36. .

  The cutter mechanism 30 is further provided with a cut waste suction nozzle 37 for sucking waste generated from the cut position of the flexible tube P and a static elimination nozzle guide 38 for removing static electricity generated at the cut position. The cut waste suction nozzle 37 sucks chips and chips generated during cutting. Further, the static elimination nozzle guide 38 is grounded so as not to generate static electricity at the cut portion, and air for removing static electricity is sent. As a result, the chips and chips are not charged with static electricity and do not adhere to the cut chips suction nozzle 37.

  The shock absorber 50 is provided in the upper part of the support base 10 and regulates the swinging motion of the support base 10. That is, the support base 10 is pulled up by the tension coil spring 55 mounted on the base 13 above the support shaft 11 that supports the support base 10 (see FIG. 1). Therefore, the shock absorber 50 is provided above the support shaft 11 so that the movable body 20 descends by pressing and urging the base end portion of the swinging movable body 10. The illustrated shock absorber 50 is provided with a joint pin 52 protruding and projecting in front of the knock cylinder 51, and a stopper pin 53 biased by the joint pin 52 is brought into contact with the base end portion of the support base 10 (FIG. 2). reference). On the other hand, one end of the tension coil spring 55 is locked to a spring hook 54 provided on the left and right side surfaces of the shock absorber 50, and the other end is locked to a rocking base end of the support base 10. The support base 10 is always pulled upward by the tensile force of the tension coil spring 55. In this state, the support base 10 is lowered by pressing and urging the base end portion of the support base 10 with the stopper pin 53. At the same time, the vertical movement of the support 10 is stabilized. And the cutter mechanism 30 of the movable body 20 mounted on the support base 10 maintains the necessary clearance between the flexible tube P and the cutting blade by bringing the fixed plate 56 into contact with the support base 10. (See FIG. 1).

  The flexible tube P to be cut by the cutting device of the present invention is sequentially conveyed under the cutter mechanism 30 in a state where the open end P1 is held between the temporary clamps Q. Then, the movable body 20 descends in the direction of the flexible tube P along with the support base 10 pressed by the stopper pin 53 of the shock absorber 50, and the movable body 20 stops at the cutting position. Further, when the cylinder 44 of the position adjusting mechanism 40 is released at this position, the slide block 41 urged by the pressing spring 42 moves, and the cutter mechanism 30 stops at the position where each guide 43 contacts the flexible tube P. To do. At this position, the cutter mechanism 30 operates to cut both corners of the opening end P1. After the cutting, each cutter mechanism 30 is opened by the operation of the cylinder 44, and the movable body 20 is raised by the backward movement of the stopper pin 53, so that a new flexible tube P is conveyed.

  It should be noted that the embodiments of the present invention are not limited to the illustrated examples, and changes in design of each member, replacement of parts, and the like can be freely changed without departing from the gist of the present invention.

The front view which shows one Example of this invention. The top view which shows one Example of this invention. The side view which shows the arrow III-III line | wire shown in FIG. The principal part expansion side view which shows the guide of this invention. The principal part sectional drawing which shows the support shaft of this invention.

Explanation of symbols

P Flexible tube P1 Open end Q Temporary clamp Q1 Upper surface 10 Support base 11 Bearing shaft 11A Thrust bearing
11B Oilless bearing
11C Compression spring 12 Bearing block 13 Base 14 Height adjustment lever 20 Movable body 21 Pace plate 22 Mounting plate 23 Standing bracket 30 Cutter mechanism 31 Fixed blade 32 Movable blade 33 Slide rail 34 Fixed blade bracket 35 Movable blade bracket 36 Cylinder 37 Cut Waste suction nozzle 38 Static elimination nozzle guide 40 Adjustment mechanism
41 Slide block 42 Pressing spring 43 Guide 44 Cylinder 45 Slide rail 50 Shock absorber
51 Knock cylinder 52 Joint pin 53 Stopper pin 54 Spring hook 55 Tension coil spring 56 Fixing plate

Claims (4)

  In a cutting device that clamps the open end of a flexible tube with a temporary clamp and cuts both corners of the open end protruding above the temporary clamp at an arbitrary angle, the base can be swung up and down via a support shaft. A pair of left and right position adjustment mechanisms mounted on the support base via slide rails mounted horizontally, and a pair of left and right supports slidably supported by the slide rails of the position adjustment mechanism And a pair of left and right cutter mechanisms that are attached to each movable body and cuts both corners of the flexible tube opening end, and the position adjustment mechanism has a position adjustment guide, and a temporary clamp The movable body is horizontally moved until the guides come into contact with both sides of the flexible tube fixed to the cutter, and the cutter mechanism is automatically adjusted in the cutting position. The fixed blade and the movable blade are arranged to face each other, the movable body swings to the cutting position of the flexible tube, and each movable blade of the cutter mechanism slides after the position adjusting mechanism adjusts the cutting position. An end cut device for a flexible tube, which is provided so as to move and cut both corners of the open end of the flexible tube.   The position adjusting mechanism includes a guide that is attached to each cutter mechanism and detects the position of the flexible tube, and the movable body automatically moves at a position where the tip of the guide contacts the flexible tube fixed to the temporary clamp. 2. The flexible tube end cutting device according to claim 1, wherein the flexible tube end cutting device is provided to stop.   The position adjusting mechanism includes a slide block provided at a base end portion of the movable body, and the movable body is slidably mounted on the slide rail via the slide block, and a pressing spring that presses the slide block is provided. The flexible body according to claim 1 or 2, further comprising a cylinder that presses the movable body toward the opening end portion of the flexible tube with an urging force, cuts the flexible tube with the cutter mechanism, and returns the slide block to the original position. Tube end cutting device. The end portion of the flexible tube according to claim 1 or 2, wherein the cutter mechanism is provided with a cut dust suction nozzle for sucking waste generated from a cut position of the flexible tube and a static elimination nozzle guide for removing static electricity generated at the cut position. Cutting equipment.

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