JP5976475B2 - Punching device - Google Patents

Description

  The present invention relates to a punching device used for a deep drawing packaging machine or the like.

  Lines for packaging foods such as sliced ham and other articles are roughly divided into a film packaging process and a boxing process. In the film packaging process, for example, a deep drawing packaging machine is used. The deep-drawing packaging machine includes, in order from the upstream side, a lower film supply unit, a pocket molding unit, a filling unit, an upper film supply unit, a vacuum seal unit, a horizontal cut unit, and a vertical cut unit.

  A lower film supply part supplies the lower film which has a width | variety about several package bodies (for example, 3 pieces) continuously. The pocket molding part molds a pocket in the lower film by pressing with a mold. The filling unit fills the pocket with the article. The upper film supply unit continuously supplies an upper film having substantially the same width as that of the lower film, and covers the lower film. The vacuum seal unit seals the film after evacuation.

  The horizontal cut part cuts the film in the horizontal direction (width direction) to form a package of a plurality of (for example, three), and at the same time punches the four corners with a Thomson blade from above so that the four corners of the package are rounded. (For example, refer to Patent Document 1). The vertical cut section cuts a plurality of package bodies in the vertical direction (conveying direction) into individual package bodies. Individual packages are boxed together in a boxing process. In addition, conveyance of a film is performed by being supported by the nail | claw provided in the circulating chain.

JP 09-085696 A

  Normally, the waste punched out of the package stays inside the Thomson blade due to contact resistance with the Thomson blade and does not fall. However, for example, when the film (curds) is curled, the punched scraps are smaller than the inner dimensions of the Thomson blade, so they will not fall and be recovered well, and will be washed downstream and packed together with the package. There is a possibility.

  This invention is made | formed in view of the said subject, and it aims at providing the punching apparatus which collect | recovers the residue which punched the package reliably.

  (1) In the present invention, a Thomson blade for punching a part of a package from above, a contact surface against which a blade tip of the Thomson blade abuts when punching a part of the package, and a part of the package are punched A path for recovering the waste from above, and the contact surface is formed with an injection port for injecting gas upward, and the path is connected to a negative pressure generator for generating negative pressure. This is a punching device.

  According to the present invention, it is possible to prevent the dregs punched from the package from being stuck inside the Thomson blade by the gas injected from the injection port. And the residue which punched the package is assisted by the negative pressure generated by the negative pressure generator, and is collected along the path. In this way, the residue punched out of the package can be reliably recovered with a simple configuration.

  (2) The present invention is also the punching device according to (1) above, wherein the package is a deep-drawn package.

  According to the punching device described in the above (1) and (2) of the present invention, the scraps punched from the package can be reliably collected.

It is the schematic of a deep drawing packaging machine provided with the punching apparatus which concerns on embodiment of this invention. It is a figure which shows a punching apparatus, (A) shows a top view, (B) shows a front view, respectively. It is a four-plane figure which shows the Thomson blade arrange | positioned in the middle of a punching apparatus, (A) is a bottom view, (B) is a rear view, (C) is a side view, (D) is a top view, respectively. Show. It is a four-plane figure which shows the Thomson blade arrange | positioned at the both ends of a punching apparatus, (A) is a bottom view, (B) is a rear view, (C) is a side view, (D) is a top view, respectively. Show. It is a side view explaining operation | movement of a punching apparatus, (A) shows the state before punching, (B) shows the state after punching, respectively.

  Hereinafter, a punching device according to an embodiment of the present invention will be described in detail with reference to the drawings.

  First, the structure of the deep drawing packaging machine 1 provided with the punching apparatus 10 is demonstrated using FIG. FIG. 1 is a schematic view of a deep drawing packaging machine 1. In addition, in this figure and each subsequent figure, one part structure is abbreviate | omitted suitably and drawing is simplified. And in this figure and each subsequent figure, the magnitude | size of a member is exaggerated suitably and expressed.

  A deep-drawing packaging machine 1 shown in FIG. 1 is used in a film packaging process in a line for sequentially packaging articles (not shown) such as sliced ham. The deep-drawing packaging machine 1 includes, in order from the upstream side, a lower film supply unit 2, a pocket molding unit 3, a filling unit 4, an upper film supply unit 5, a vacuum seal unit 6, a horizontal cut unit 7, a vertical cut unit 8, and the like. I have.

  The lower film supply unit 2 continuously supplies the lower film YA1 having a width corresponding to several package bodies XA1 (three in the present embodiment). The pocket molding part 3 is pressed with a mold (reference numeral omitted) to mold a pocket (reference numeral omitted) in the lower film YA1. The filling unit 4 fills the pocket with sliced ham. The upper film supply unit 5 continuously supplies the upper film YA2 having substantially the same width as the lower film YA1, and covers the lower film YA1. The vacuum seal 6 seals the films YA1 and YA2 after evacuation.

  The lateral cut portion 7 cuts the films YA1 and YA2 in the lateral direction (width direction) by a punching device 10 to be described later to form a plurality of (in this embodiment, triple) package XA1, and at the same time, The four corners are punched out so that the four corners are rounded (see FIG. 2A). The vertical cut unit 8 cuts the plurality of package bodies XA1 in the vertical direction (conveyance direction) to form individual package bodies XA1. The individual packages XA1 are boxed together in the subsequent boxing process. The films YA1 and YA2 are transported by being supported by claws (not shown) provided on a circulating chain (not shown).

  Next, the structure of the punching apparatus 10 with which the horizontal cut part 7 is provided is demonstrated using FIGS. FIG. 2 is a view showing the punching device 10. FIG. 4A shows a top view. FIG. 5B shows a front view. FIG. 3 is a four-side view showing the Thomson blade 11 disposed in the middle of the punching device 10. FIG. 2A shows a bottom view. FIG. 5B shows a rear view. FIG. 3C shows a side view. FIG. 4D shows a top view. FIG. 4 is a four-side view showing the Thomson blades 12 disposed at both ends of the punching device 10. FIG. 2A shows a bottom view. FIG. 5B shows a rear view. FIG. 3C shows a side view. FIG. 4D shows a top view.

  The punching device 10 shown in FIGS. 2 (A) and 2 (B) simultaneously cuts the sealed films YA1 and YA2 in the lateral direction to form a package XA1 having a plurality of series (three series in this embodiment). The four corners are punched out so that the four corners of the package XA1 are rounded. Specifically, the punching device 10 includes a plurality of Thomson blades 11 and 12, a plurality of flat blades 13, a head 14, a duct 15 (see FIGS. 5A and 5B), and a gantry 16. , Substrate 17 and the like.

  The plurality of Thomson blades 11 and 12 and the plurality of flat blades 13 are replaceable, and are attached to the head 14 with the blade edges 11a, 12a and 13a facing downward. The plurality of Thomson blades 11 and 12 are blades that punch out the four corners of the package XA1 (part of the package XA1) from above (details will be described later). The blade edges 11a and 12a of the Thomson blades 11 and 12 abut against the contact surface 17a of the upper portion of the base material 17 when the package body XA1 is punched (see FIG. 5B). The plurality of flat blades 13 are blades for cutting the sealed films YA1 and YA2 in the horizontal direction. The cutting edge 13a of the flat blade 13 abuts against the contact surface 17a of the upper portion of the base material 17 when cutting.

  The head 14 is disposed above the films YA1 and YA2 so as to cross the sealed films YA1 and YA2. The head (holder) 14 is arranged above the films YA1 and YA2 because the pocket is formed below the film surface of the lower film YA1 and the head 14 is arranged below the films YA1 and YA2. This is because it interferes with the pocket. That is, the reason why the head 14 is disposed above the films YA1 and YA2 is to prevent interference with the pockets. In other words, there is a molded pocket under the films YA1 and YA2, and the space for the holders of the Thomson blades 11 and 12 cannot be taken. The head 14 holds a plurality of Thomson blades 11 and 12 and a plurality of flat blades 13 in a row. Specifically, the head 14 holds the Thomson blade 11, the flat blade 13, the Thomson blade 12, the flat blade 13, the Thomson blade 12, the flat blade 13, and the Thomson blade 11 in order. The head 14 is connected to the duct 15. As a result, the head 14 together with the duct 15 constitutes a path for recovering from the top the residue (not shown) punched from a part of the package XA1. In addition, the height and position of the head 14 are fixed, and the cutting edges 11a, 12a, and 13a abut against the contact surface 17a by raising and lowering a base material 17 described later.

  The duct 15 (see FIGS. 5A and 5B) is connected to a negative pressure generator (not shown) such as a blower. The negative pressure generator is always driven so as to keep the inside of the duct 15 at a negative pressure. This assists in collecting the residue one piece at a time. However, since it is necessary to prevent fluttering of the films YA1 and YA2 before punching, the negative pressure generated by the negative pressure generator is set to be weak. That is, the waste cannot be reliably recovered only by the negative pressure generated by the negative pressure generator.

  The gantry 16 is provided so as to be moved up and down by a drive source such as an air cylinder (not shown). The substrate 17 is disposed so as to cross the sealed films YA1 and YA2 and to face the head 14 below the films YA1 and YA2. A contact surface 17 a against which the blade tips 11 a, 12 a and 13 a of the Thomson blades 11 and 12 and the flat blade 13 abut is formed on the upper portion of the base material 17. As the gantry 16 is raised, the contact surface 17a is raised, and as a result, the Thomson blades 11 and 12 and the flat blade 13 are brought into contact with the contact surface 17a. Thereby, the films YA1 and YA2 are cut and punched.

  The contact surface 17a is formed with an injection port 17b (see FIGS. 5A and 5B) for injecting a gas such as compressed air upward at a location where the Thomson blades 11 and 12 face each other. . The injection port 17b is connected to a compressor (not shown) that generates compressed air via a vent hole 17c (see FIGS. 5A and 5B) formed in the base member 17 and the like. . The compressor is intermittently driven so as to be driven after a part of the package XA1 is punched out. As a result, the punched pieces are collected one by one through the duct 15.

  As shown in FIGS. 3A to 3D, the Thomson blade 11 has a substantially rectangular parallelepiped shape, the blade tip 11a is formed on the bottom surface, and the bottom surface (region surrounded by the blade tip 11a). A hole 11b penetrating the upper surface is formed. The blade edge 11a has a shape for punching the package body XA1 (in this embodiment, a star shape of four protrusions). The hole 11b has a two-stage structure on the bottom surface side (lower side) and the upper surface side (upper side). The bottom surface side of the hole 11b has the same size and the same shape as the region surrounded by the blade edge 11a. The upper surface side of the hole 11b has a larger size than the bottom surface side, and facilitates the passage of waste. According to such a two-stage structure of the hole 11b, the debris that has passed through the upper side through the narrow part on the lower side of the hole 11b does not return to the lower side. If the hole 11b has the same size and the same shape as the region surrounded by the blade edge 11a up to the upper side without using the two-stage structure, the hole 11b becomes a resistance and the residue does not accumulate (the residue does not pass upward). , May be pushed down and fall.

  As shown in FIGS. 4A to 4D, the Thomson blade 12 has a substantially rectangular parallelepiped shape, the blade tip 12a is formed on the bottom surface, and the bottom surface (region surrounded by the blade tip 12a). A hole 12b penetrating the upper surface is formed. The blade edge 12a has a shape for punching the package XA1 (in this embodiment, a ginkgo shape). The hole 12b has a two-stage structure on the bottom surface side (lower side) and the upper surface side (upper side). The bottom surface side of the hole 12b has the same size and the same shape as the region surrounded by the blade edge 12a. The upper surface side of the hole 12b has a larger size than the bottom surface side, and facilitates the passage of the residue. According to such a two-stage structure of the hole 12b, the residue that has passed through the upper narrow portion of the hole 12b and does not return to the lower side. If the hole 12b has the same size and the same shape as the region surrounded by the blade edge 12a up to the upper side without using the two-stage structure, the hole 12b becomes a resistance and the residue does not accumulate (the residue does not pass upward). , May be pushed down and fall.

  Next, operation | movement of the punching apparatus 10 is demonstrated using FIG. FIG. 5 is a side view for explaining the operation of the punching device 10. FIG. 2A shows a state before punching by the punching device 10. FIG. 2B shows a state after punching by the punching device 10.

  In the punching device 10 before punching, the gantry 16 is lowered (see FIG. 5A). For this reason, the contact surface 17a is spaced apart from the films YA1 and YA2. On the other hand, the Thomson blades 11 and 12 and the flat blade 13 are arranged along the films YA1 and YA2. The negative pressure generator (not shown) connected to the duct 15 is always driven during the operation of the packaging machine, but can also be manually stopped. The compressor (not shown) connected to the injection port 17b is intermittently driven, but is stopped before punching.

  When punching, the gantry 16 is raised until the blade tips 11a, 12a, and 13a of the Thomson blades 11 and 12 and the flat blade 13 are in contact with the contact surface 17a (see FIG. 5A). . The negative pressure generator (not shown) connected to the duct is continuously driven. A compressor (not shown) connected to the injection port 17b is driven at a predetermined timing after punching. Thereby, compressed air is injected from the injection port 17b, and the punched-out residue is spouted up. Then, the blown-up residue is collected one by one through the duct 15.

  Thereafter, the punching device 10 lowers the gantry 16 and waits for the next punching.

  Thus, according to the punching device 10, the residue punched out of the package XA1 is prevented from sticking to the Thomson blades 11 and 12 due to the compressed air injected from the injection port 17b. Then, the residue punched out of the package XA1 is assisted by the negative pressure generated by the negative pressure generator and collected through the duct 15. In this way, the residue obtained by punching the package XA1 can be reliably recovered with a simple configuration.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and technical idea thereof.

  That is, in the above embodiment, the position, size, shape, material, orientation, quantity, and the like of each component (for example, Thomson blades 11 and 12) can be changed as appropriate.

DESCRIPTION OF SYMBOLS 1 Deep drawing packaging machine 10 Punching device 11, 12 Thomson blade 11a, 12a Cutting edge 14 Head (path)
15 Duct (path)
17a Contact surface 17b Injection port XA1 Packaging

Claims (2)

A Thomson blade that punches a part of the package from above,
A contact surface against which the tip of the Thomson blade abuts when punching out a part of the package; and
A path for recovering a dregs punched from a part of the package from above, and
The contact surface is formed with an injection port for injecting gas upward,
The path is connected to a negative pressure generator that generates negative pressure,
Punching device. The package is a deep-drawn package,
The punching device according to claim 1.

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