JP2002362520A - Star shape punching device in cutter system of solid tray vessel sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a safe device for punching and completely removing a star-shaped part after performing the die-cut to facilitate the cutting of a vessel when a work to be packaged is larger than a blister packaging body of food, seasoning, etc. SOLUTION: A star shape punching device comprises upper projecting bars of the number corresponding to the number of star-shaped parts which are aligned to the position of the star-shaped parts of a solid tray vessel sheet when stopped, and vertically moved so as to push up the star-shaped parts, lower receiving bars of the number same as the number of the upper projecting bars which are installed so as to hold the star-shaped parts immediately below the upper projecting bars, a pneumatic actuator for vertically moving the lower receiving bars, and a star-shaped part suction duct having projecting holes with the lower receiving bars freely accessible and surrounding the lower receiving bars and the entire pneumatic actuator. The upper projecting bars and the lower receiving bars are moved downwardly while holding the star- shaped parts, separate the star-shaped parts from the vessel sheet, and are lowered into the suction duct. The upper projecting bars are pulled up while leaving the lower receiving bars behind at the lower part, and the separated star-shaped parts are sucked by the suction duct, and stored in a scrap box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray container cutting method for cutting a solid tray container sheet, which is formed by aligning and molding a continuous sheet-like plastic film, filling a fixed amount of a filler, and bonding and sealing with a cover film. The present invention relates to a star punching device in an apparatus.

[0002]

2. Description of the Related Art In a conventional tray container die cutting apparatus, a group of plastic tray containers is sealed, filled with materials to be filled, and a sealed plastic tray container group is sent. Crushed in another processing step, and is discarded or collected and recycled as a resin raw material.

A PTP blister pack used for small packs such as tablets and sugar-coated tablets is provided with perforations in the raw sheet in the vertical and horizontal directions for cutting individual packages, and punching a certain group of packages. As a group, the corners are rounded, but when cut along the perforations of the packaged material, sharp corners remain and the hands may be hurt.

A conventional example disclosed in Japanese Patent Application Laid-Open No. H11-314616 in which a tray is separated between trays in order to improve the yield of a raw material plastic sheet or film relates to a punching device for a blister pack. A plurality of concave portions provided in alignment with the sheet accommodate a packaged object (sugar-coated tablet or the like), and a vertical and horizontal perforation is formed between the concave portions of the original sheet containing the packaged object formed by attaching another resin sheet to this. After punching a star shape surrounded by an outer circle at the intersection of the perforations, the apparatus cuts the raw sheet into fixed groups of the packaged objects. This device cuts a fixed group of packages from the raw sheet, instead of punching it, but cuts them into a fixed length. May be damaged.

The conventional example disclosed in Japanese Utility Model Laid-Open No. 6-78272 relates to a blister package, and similarly to the above, a packaged object (sugar-coated tablet or the like) is provided in a number of concave portions provided in alignment with a resin sheet. And a perforated line between the recesses of the packaged raw sheet formed by laminating another resin sheet to this, and the intersection of the perforations at the intersection of the perforations. When the package is punched out and cut out individually, the corners of the package do not damage the human body.

[0006]

Star-shaped (rhombic) punching has been developed because the sharp projections of the corners at the four corners of the packaging bag may damage the skin of those who handle the packaging bag. However, since the star-cut scraps remain around the equipment and may hurt the operator's hand, it is a problem to remove the star-shaped scraps reliably. The present invention is a packaged product, such as a food or a seasoning, when the blister package is larger, after die-cutting to facilitate the separation of the container, after punching a star-shaped portion, It is an object of the present invention to provide a safe device that completely eliminates the waste.

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention intermittently conveys a continuous sheet-like plastic film at a constant pitch, and supplies a fixed amount of food to each of a number of rectangular tray containers aligned and molded from the film. The solid tray container sheet filled with seasonings, etc., covered with a cover film and adhered and sealed, makes it easy to separate the tray containers at regular intervals of intermittent conveyance and to separate the star-shaped part generated at the corner of the tray container. In the tray container sheet cutting device constituted by a die-cutting device for making a cut to make the sheet and a cutting device for cutting the solid tray container sheet in the horizontal and vertical directions, the star-shaped portion is removed before the tray container is cut. Star removal device,

A number of upper protruding rods corresponding to the number of star parts moving up and down so as to push down the star part from above in accordance with the position of the star part of the stopped solid tray container sheet; The same number of lower receiving rods as the above-mentioned protruding rods disposed so as to sandwich the star portion, a pneumatic actuator for moving the lower receiving rod up and down, and a protruding hole through which the lower receiving rod can enter and exit are formed. The lower receiving rod and the star-shaped part suction duct surrounding the entire pneumatic actuator are constituted, and the upper protruding rod and the lower receiving rod move downward while sandwiching the star-shaped part, and the star-shaped part is moved to the container. It is separated from the sheet and descends into the suction duct, the projecting rod is lifted up leaving the lower receiving rod at the bottom, and the star-shaped part acting to suck the separated star part by the suction duct and store it in the scrap box. Unchecked And means of solving the problems of the location I or more.

Further, in the above star removing device, a scrap box for a star connected to the star suction duct by an air pipe is provided, and the separated star is sucked by a suction duct. A star-shaped punching device acting to accommodate the lower receiving rod, and a through hole communicating with the outside air is provided in the axis of the lower receiving rod, and the lower receiving rod is left in the lower part in the suction duct, and the protruding rod is pulled up. At this time, if the star-shaped portion is more reliably removed by blowing out the outside air from the through hole, a more preferable star-shaped portion removing device is obtained.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION In an embodiment of the present invention, foods, seasonings, etc. are filled in each of a large number of rectangular tray containers formed by arranging continuous sheet-like plastic films in four rows and forming a cover film. When the solid tray container covered and adhered and sealed is die-cut by a die-cutting device for each fixed group of intermittent conveyance, both the side edges of the tray container, the adjacent portions of the tray container, and the star-shaped portion surrounded by the round corner of the container are slightly reduced. In the tray container cutting device that cuts the tray containers individually or in groups after die-cut so that the sheet shape can be easily separated with the force of human power while leaving the connecting portion, the original tray container First, a star-shaped punching device for removing a star-shaped portion from an anti-sheet will be described with reference to the drawings.

FIG. 1 is a plan view of the solid tray container sheet showing a die-cut cutting line obtained by die-cutting the solid tray container sheet by the method of the present invention. FIG. 2 is an enlarged view of a portion A of the die cut line of the tray container of FIG. FIG. 4 is a sectional view taken along line BB of FIG. 2, and FIG. 4 is an overall side view of the tray container cutting device. FIG. 5 is a front view (partial sectional view) of the star-shaped punching device, and FIG.
5 is a side view (partially sectional view) of the star-shaped punching device of FIG. 5, and FIG. 7 is an operation explanatory view showing an operation process of the star-shaped punching device of FIG.

In FIG. 4, reference numeral 1 denotes a heat-bondable plastic film. The film 1 is wound in a roll state and loaded on an unwinding machine 2. The film 1 continuously unwound from the unwinding machine 2 passes through a dancer roll 3 and is conveyed by a pair of conveying chains 4 by a conveying chain 4. Both side edges are clipped at the chain sprocket portion 5 at the entrance of
It is intermittently driven and transported at a constant pitch. Although not shown,
The transport chain 4 is an attached chain having an attachment for clipping the film 1 at every other link, and is driven intermittently by a motor 18.

When the film 1 transported by the transport chain 4 intermittently moves, the molding machine 6 is stopped while the chain 1 is stopped.
In the above, the tray portion of the tray container in which the film 1 is arranged in four rows vertically and horizontally is formed, foods, seasonings, etc. are filled in the filling machine 7, and the film 30 on the lid side is covered with the lid sealer 10 and heat sealed. And the cooling mold 11 cools the heat seal portion. 8
Is an unwinder for the film 30, and 9 is a dancer roll for the film 30. The raw film 1 filled and sealed with the articles to be packaged becomes a solid tray container sheet 21.

In the next moving step, the solid tray container 2
When the die 1 is die-cut by the rotary die-cutting device 12 of a known configuration during the constant pitch movement of the intermittent conveyance (when a frame-fixed flat die-cutting device is used, the die-cutting is performed while the intermittent movement is stopped). ),
1, 2, and 3, the solid tray container sheet 21
Between the two side edges of the tray container 22 and the tray container 22
And the star-shaped portion 21a surrounded by the round corner of the container 22 are half-cut so that they can be easily separated with the force of human power, and the sheet shape is left with a slight connecting portion e. , And the outer periphery of the tray container 22 is die-cut.

The solid tray container sheet 21, which is die-cut in the rotary die-cutting device 12 and still retains the sheet shape, is firstly rounded at the corner of the tray container by the star punching device 13 installed at the next stop position. The enclosed star portion 21a is punched out and removed.
a is collected in the star-shaped scrap collecting box 89. In the next stopping step, the solid tray container sheet 21 is horizontally cut by the crossing knife device 14 for each row or plural rows of the tray containers 22, and in the next moving process, the vertical cutting rotary knife device 15 is cut.
And the pressing roller 17 vertically cuts the tray container sheet 21 into individual tray containers 22 or each group.

The container tray 22, which is the cut product, is placed on the delivery conveyor 19 and delivered to the next step (inspection, exterior, etc.). Further, a sheet opening means (not shown) is provided in a traveling portion of the transport chain 4 after the vertical cutting by the rotary knife device 15, and a clip provided on the transport chain 4 is opened by the action of the opening means, so that the solid tray container sheet is opened. The container scraps 23 on both sides separated from the container 21 are opened. The container scrap 23 is wound around a scrap winder 16.

The rotation of the two sets of servo motors, the drive servo motor (not shown) of the rotary die cutting apparatus and the drive servo motor 18 of the clip-equipped transport chain 4, is performed by an encoder (not shown) attached to each servo motor. Detected and transmitted to a control device (not shown), the speed of which is controlled by the control device, and while the transport chain 4 is stopped, the molding machine 6,
Filling machine 7, lid sealer 10, cooling mold 11, star-shaped punching device 1
3. The traversing knife device 14 operates.

The configuration and operation of the star punching device 13 will be described. The front view (partial sectional view) shown in FIG. 5 is viewed from the feed direction of the solid tray container sheet 21, and the punching mechanism in the middle projects the punched star 21 a and the lower end 71 a of the rod 71 and the air cylinder 72. FIG. 6 shows a state in which the lower receiving rod 72a is sandwiched between the upper end of the lower receiving rod 72a, the lower receiving rod 72a of the air cylinder 72 is lowered and the stamped star portion 21a is separated, and the right punching mechanism and FIG. The lower receiving rod 72a of the air cylinder 72 rises and the upper end abuts on the star-shaped portion 21a of the solid tray container sheet 21, and the holding plate 74
And the projecting bar 71 is at the rising end and is still separated from the solid tray container sheet 21.

Reference numeral 83 denotes a mounting frame for the star-shaped punching device 13, which includes side frames 83a and 83b and a lower frame 83.
c, an upper frame 83d, and an intermediate frame 83e. Projection bars 7 provided with four sets at intervals corresponding to one pitch of movement of solid tray container sheet 21
1 can be vertically moved by an air cylinder 78 attached to a mounting frame 83 and protruding from the upper part and fixed to a bar support 73. The guide rod 81 guided by the guide cylinder 79 mounted on the mounting frame 83 is fixed to the protruding rod support 73, and serves to maintain the horizontal position of the protruding rod support 73 when ascending and descending and to prevent rotation.

The eight holding plates 74 are spaced from each other by alternately sandwiching spacers 87 and 88 at both ends, and are fixed together by piercing bolts 75 and 75 to form a frame. Guide and star part 2
The upper surface of the solid tray container sheet 21 is pressed on both sides of 1a. Pressing plate support bolts 76 are slidably fitted in four through holes 73 a symmetrically opened in the protruding bar support 73, and the tips of the holding plate support bolts 76 are screwed to spacers 88. . A compression spring 77 is sandwiched between the protruding bar support 73 of the holding plate support bolt 76 and the spacer 88.

The solid tray container sheet 21 is clipped by the transport chain 4 guided by the chain guides 46 and 47 attached to the main body frame of the tray container cutting device (not shown) and stopped during the intermittent horizontal movement.
The star-shaped portion 21a is punched by the protruding rod 71. An air cylinder 72 having a lower receiving rod 72a at the same number and the same arrangement position as the rods 71 protruding from the lower frame 83c.
Is installed. When one of the air cylinders 72 is shown in cross section, when the lower receiving rod 72a is lowered, the compression spring 72c is compressed by the force of the compressed air from the air pipe 72b.
Is pressed down to raise the lower receiving rod 72a, the supply of compressed air is stopped to form a single-push air cylinder by the compression spring force. The compression spring force of the air cylinder 72 only needs to have a force for projecting the stamped star portion 21a and pinching it between the star portion 21a and the rod tip 71a.

The suction duct 84 is attached to a lower frame 83c having an inclined bottom plate 84b so as to cover the tip position when the lower receiving rod 72a of the air cylinder 72 is lowered.
Is attached, and the suction duct 84 is connected to the star-shaped scrap collecting box 89 via a discharge pipe 84a. A side guide plate 4 for guiding the solid tray container sheet 21 is provided on the intermediate frame 83e having a hole through which the lower receiving rod 72a passes.
1. The guide plates 42, 85, 86 are attached.

The lower receiving rod 72a has a through hole 72d in the shaft center.
Is opened, and after the star-shaped portion 21a is protruded and punched by being sandwiched between the rod 71 and the lower receiving rod 72a, the suction duct 8 is formed.
When the tip of the rod 71 protrudes inside the suction pipe 4, the suction duct 84
Due to the internal negative pressure, outside air is introduced from the through hole 72d of the lower receiving rod 72a, and acts to blow down the star 21a from the tip of the lower receiving rod 72a.

The operation of the star punching device 13 will be described with reference to FIG. FIG. 7 (I) shows that the protruding rod 71 is at the rising end, the compressed air is sent to the air cylinder 72, the lower receiving rod 72a is at the lower end, and the solid tray container sheet 21 moves in the direction of the arrow. This shows a possible state. The solid tray container sheet 21 is provided with side guide plates 41, guide plates 42, 8
5 and 86, it moves one stroke, and when stopped, the protruding bar support 73 descends as shown by the arrow, and the holding plate 74
The solid tray container sheet 21 to the guide plates 42, 85, 8
6, the compressed air of the air cylinder 72 is released, the lower receiving rod 72a rises and moves to the position shown in FIG. 7- (II).

FIG. 7- (II) shows a state in which the upper end of the lower receiving rod 72a is in contact with the star-shaped portion 21a of the solid container tray sheet 21 and the pressing plate 74 presses the upper surface of the solid tray container sheet 21. ing. In this state, still stick 7
The first end 71a is located away from the sheet surface. Following the operation of the pressing plate 74 pressing the upper surface of the solid tray container sheet 21, the protruding rod 71 descends as shown by the arrow and moves to the position shown in FIG. 7- (III).

FIG. 7- (III) shows that the protruding rod 71 descends and is punched out of the solid tray container sheet 21 while holding the star 21a between the lower receiving rod 72a and the star 21a.
Have been conveyed into the suction duct 84. The star-shaped portion 21a thus punched is reliably carried into the suction duct. Thereafter, the lower receiving rod 72a is lowered by the action of compressed air to the position shown in FIG. 7- (IV), as shown by the arrow.

FIG. 7- (IV) shows a state in which the star-shaped portion 21a is blown down by the outside air flowing through the through hole of the lower receiving rod 72a in the suction duct 84, and is separated. Thereafter, the protruding rod 71 rises as shown by the arrow, and the lower receiving rod 72a remains at the lower end, and the solid tray container sheet 21 can move in the direction of the arrow as shown in FIG. 7- (I). Return.

As described above, the star-shaped portion 21 a surrounded by the periphery of the solid tray container sheet 21 and the round corner of the tray container 22 is applied to a large-sized tray pack such as a food or a seasoning. The solid tray container sheet 21 conveyed while maintaining the state of the sheet is die-cut while leaving a slight seam for facilitating the separation of the tray container 22. 7
1 and the lower receiving rod 72a for punching. The star-shaped portion 21a is drawn into the suction duct 84 while being sandwiched, and a star-shaped punching device 13 is provided to separate only the lower receiving rod 72a downward. Since the star-shaped portion 21a is reliably eliminated, there is no danger of the operator's hand being hurt by the sharp corner of the star-shaped scrap, and the separation and separation of the container 22 in the subsequent process can be easily, reliably, and safely performed. can do. Note that an air cylinder using compressed air instead of the compression spring 72c may be employed as the air cylinder 72.

[0029]

According to the present invention, in a tray container cutting device, a large number of large rectangular tray containers molded from a continuous sheet-like plastic film are filled with food, seasoning, etc., and are covered with a cover film and sealed. When the containers are intermittently transported for each of a plurality of aligned groups and die-cut, the rectangular tray containers adjacent to the both sides of the sheet-like solid tray container group and the tray containers leave the slight connecting portion around the containers and the containers. Die-cut in the middle of the container, and transport the star-shaped part surrounded by the rounded corner of the container while maintaining the sheet shape, leaving a slight connection part with the container, and from the tray container sheet before the container cutting process The one-group star-shaped part is simultaneously punched out between the protruding rod and the lower receiving rod,
The star-shaped part was pulled into the suction duct while being sandwiched, and a star-shaped punching device was installed to separate only the lower receiving rod downward, thereby ensuring the elimination of the star-shaped part. Therefore, there is no danger of the operator's hand being hurt, and the separation and separation of the container in the subsequent process can be easily, reliably, and safely performed.

Further, a through hole communicating with the outside air is provided in the axis of the lower receiving rod of the star punching device, and air is blown out from the through hole in the suction duct. , The removal of the star-shaped scraps can be more reliably performed.

[Brief description of the drawings]

FIG. 1 is a plan view of a solid tray container sheet showing a die cutting line cut by a die cutting method according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a portion A of a die cut line of the tray container of FIG. 1;

FIG. 3 is a sectional view taken along line BB of FIG. 2;

FIG. 4 is an overall side view of the tray container punching device according to the embodiment of the present invention.

FIG. 5 is a front view (partially sectional view) of the star-shaped punching device.

FIG. 6 is a side view (partially sectional view) of the star-shaped punching device of FIG. 5;

FIG. 7 is an operation explanatory view showing an operation process of the star-shaped punching device of FIG. 5;

[Explanation of symbols]

 4 Conveyor Chain 12 Rotary Die Cutting Device 13 Star Punching Device 21 Solid Tray Container Sheet 21a Star Shape 71 Protruding Bar 72 Air Cylinder 72a Lower Receiving Bar 72d Through Hole 73 Protruding Bar Support 74 Pressing Plate 75 Pressing Plate Support Bolt 76 Compression spring 77 Air cylinder 84 Suction duct 89 Star-shaped scrap collection box

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3C021 FD02 FD07 3C060 AA04 BG17 3E049 AA02 AB03 BA03 CA04 DB07 EA02 EB02 EC02 FA06 3E056 BA11 CA11 DA05 EA08 FB03 FB10 GA03 3E075 AA28 BA30 CA01 DB02 DB03 DB12 DB12 GA

Claims (3)

[Claims] 1. A continuous sheet-shaped plastic film is intermittently conveyed at a constant pitch, a fixed amount of food, seasoning and the like are filled in each of a large number of rectangular tray containers aligned and molded from the film, and a cover film is put on the upper surface. A die-cutting device that cuts the solid tray container sheet that has been sealed and adhered at regular intervals of intermittent conveyance to facilitate separation of the tray containers and separation of the star-shaped portion generated at the corner of the tray container, and a solid tray. In a tray container sheet cutting device configured by a cutting device that cuts a container sheet in a horizontal direction and a vertical direction, a star punching device that removes the star portion before cutting the tray container is a solid tray container that is stopped. A number of upper protruding rods corresponding to the number of star parts which move up and down so as to push down the star part from above according to the position of the star part of the sheet, The same number of lower receiving rods as the number of the protruding rods disposed so as to sandwich the star portion directly below the upper protruding rods, a pneumatic actuator for moving the lower receiving rods up and down, and a protrusion through which the lower receiving rods can enter and exit. It is composed of a perforated lower receiving rod and a star-shaped part suction duct surrounding the entire pneumatic actuator.The upper protruding rod and the lower receiving rod move downward while sandwiching the star-shaped part to form a star. Part is separated from the container sheet and lowered into the suction duct, the lower receiving rod is left at the bottom, the protruding rod is lifted, and the separated star is sucked by the suction duct and accommodated in the scrap box. A star-shaped punching device in a device for cutting a solid tray container sheet. 2. The star-shaped punching device according to claim 1, further comprising a star-shaped scrap box connected to the star-shaped suction duct by an air pipe, and separating the separated star-shaped portion from the suction duct. A star-shaped punching device in a cutting device for a solid tray container sheet, wherein the star-shaped punching device works so as to accommodate the scrap in the scrap box. 3. The star-shaped punching device according to claim 2, wherein a through hole communicating with the outside air is provided in a shaft of the lower receiving rod, and the lower receiving rod projects in the suction duct while leaving the lower receiving rod at a lower part. A star-shaped punching device in a cutting device for a solid tray container sheet, wherein the star-shaped portion is more reliably removed by blowing out outside air from the through hole when the rod is pulled up.