CN108044689B

CN108044689B - Sheet conveying die

Info

Publication number: CN108044689B
Application number: CN201810034032.1A
Authority: CN
Inventors: 郑启明; 叶鸿真; 石博; 文江丰; 詹朝臻
Original assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Current assignee: Guangzhou Tech Long Packaging Machinery Co Ltd
Priority date: 2018-01-15
Filing date: 2018-01-15
Publication date: 2023-11-21
Anticipated expiration: 2038-01-15
Also published as: CN108044689A

Abstract

The invention provides a sheet material conveying die, which comprises an upper die and a lower die connected with the upper die through pins, wherein the upper die and the lower die are respectively provided with a guide groove for installing a tension spring and placing a clamping column, the central parts of the upper die and the lower die are respectively provided with a model hole surrounded by the guide grooves, the model holes can pass through a male die of a punching device, the bottom of the guide grooves is provided with a groove for placing the clamping column and a fixed column for fixing the tension spring, the shape of the groove is a strip shape, the long axis of the groove is intersected with the circumference of the tension spring, the size of the model hole can be automatically scaled, the clamping of a sheet material is realized, and meanwhile, the processing precision of a conveying die hole can be reduced, so that the cost is reduced, the conveying die is limited through the clamping column, the male die and the conveying die are not in direct contact, the damage of the conveying die is reduced, the service life is prolonged, and only the clamping column is required to be replaced.

Description

Sheet conveying die

Technical Field

The present invention relates to a sheet conveying device, and more particularly, to a sheet conveying die for fixing a punched sheet to be conveyed to a heat sealing device for heat sealing.

Background

In order to realize in-line die cutting and heat-sealing of a sheet to a work, it is necessary to perform cold die cutting and then transfer the sheet to a heat-sealing die by a transfer device for heat-sealing, wherein the transfer die is indispensable.

The conveying die for carrying out punching heat sealing on line generally requires compact volume, and the precision of the conveying die matched with the male die is generally 0.05-0.1mm.

The difficulty in the pairing processing with the punching die and the heat sealing die is mainly reflected by the following points that firstly, the punched sheet material can be clamped in a model hole of a conveying die and is not easy to fall off in the conveying process;

secondly, a certain gap is reserved between the punched male die and the conveying die, otherwise, the male die is easy to blunt, needs to be replaced frequently and has high maintenance cost;

then, in the heat-seal area, the heat-seal head needs to be smaller than the model hole of the transfer die, but cannot be too small, because the phase difference is too small, the gap is large, and the heat-seal rear edge cannot be heat-sealed, so that the appearance of the product is affected.

Disclosure of Invention

In order to solve the problems, the invention provides the conveying die which can not easily fall off in the conveying process of sheets, can reduce the maintenance cost of parts and can ensure the heat sealing appearance of products.

The utility model provides a sheet material transfer mould, including last mould, lower mould for pin connection with last mould, go up mould and lower mould all be provided with the guide slot that is used for installing the extension spring and place the draw-in post, the central part of going up mould and lower mould all is provided with the model hole that is surrounded by the guide slot, the model hole can pass from the terrace die of die-cutting device, the guide slot bottom is provided with the recess that is used for placing the draw-in post and is used for fixed column of extension spring, the recess shape is the bar, its long axis intersects with the extension spring contour, the draw-in post is the column, its upper bottom surface and lower bottom surface all are provided with the projection corresponding with the recess, the projection can follow recess long axis direction translation in the recess, draw-in post side be provided with extension spring assorted draw-in groove, be provided with the guide way on being close to upper bottom surface department on the side opposite to draw-in spring draw-in groove, be provided with the draw-in groove below the guide slot, be provided with flange portion between guide way, the flange portion is provided with under the initial condition, the flange portion of the flange portion, the hole site size that the flange portion of draw-in post encloses is less than the terrace die size under the initial condition.

The size of the model hole can be automatically scaled, the clamping of the sheet is realized, and meanwhile, the processing precision of the conveying die hole can be reduced, so that the cost is reduced, the conveying die is limited through the clamping column, the male die is not in direct contact with the conveying die, the damage of the conveying die is reduced, the service life is prolonged, and only the clamping column is required to be replaced when parts are replaced.

Drawings

Fig. 1 is a perspective view of the sheet conveying die.

Fig. 2 is a schematic view of the structure of the lower die portion of the sheet material conveying die, wherein the arrow direction in the drawing is the elastic direction of the tension spring in the original state.

Fig. 3 is a schematic view of the sheet conveying die in the blanking process of the male die.

Fig. 4 is a side view of the sheet material conveying die clamping column, and the arrow direction is the direction of force applied by the clamping column and the tension spring when the male die just enters the conveying die.

Fig. 5 is a schematic perspective view of the transfer film cartridge.

Detailed Description

As shown in fig. 1 to 4, the sheet conveying die comprises an upper die 1, a lower die 2 connected with the upper die 1 by pins, guide grooves 5 for installing tension springs 3 and placing clamping columns 4 are arranged on the upper die 1 and the lower die 2, die holes surrounded by the guide grooves 5 are arranged at the central parts of the upper die 1 and the lower die 2, a male die 8 of a punching device can pass through the die holes, grooves 6 for placing the clamping columns 4 and fixing columns 7 for fixing the tension springs 3 are arranged at the bottoms of the guide grooves 5, the grooves 6 are in a strip shape, long axes of the grooves 6 intersect with the circumference of the tension springs 3, the clamping columns 4 are columnar bodies, convex columns 41 corresponding to the grooves 6 are arranged on the upper bottom surface and the lower bottom surface of the clamping columns 4, tension spring limit grooves 42 matched with the tension springs 3 are arranged on the sides of the grooves 6 along the long axes of the grooves 6, guide grooves 43 are arranged on the sides opposite to the tension spring limit grooves 42 and close to the upper bottom surface, clamping flanges 44 are arranged below the guide grooves 43, flanges 45 are arranged between the guide grooves 43 and the clamping flanges 44, and the size of the flanges 45 of the clamping flanges 4 is smaller than that of the size of the male die 8 in the initial state.

As shown in fig. 3 to 5, the sheet material band 9 is punched into a sheet material 10 by a punch 8 and a die 11, and the punch 8 directly feeds the sheet material 10 into a conveying die after punching; when the sheet 10 enters the conveying die, the male die 8 and the sheet 10 firstly contact the guide groove 43 of the clamping column 4, the guide groove 43 and the clamping groove 44 are inclined slopes in the same inclined direction, and the clamping column 4 can be pushed to pass through the matching of the convex column 41 and the groove 6 in the downward movement process of the male die 8, so that the convex column 41 can translate towards the long axis direction of the groove 6; then the male die 8 continues to move downwards, and continues to move downwards after passing through the flange part 45, the male die 8 returns along the original path after reaching the middle part of the clamping groove 44, and is separated from the sheet 10 in the returning process of the male die 8, and the clamping column 4 resets under the action of the elastic force of the tension spring 3, so that the sheet 10 moves upwards under the clamping of the clamped groove 44 until the flange part 45 is clamped by the flange part 45, and the punching receiving is completed.

As shown in fig. 3, due to the existence of the tension spring 3, in an initial state, the size a of the transmission die hole is larger than the size b of the male die 8, the initial size c1 of the hole surrounded by the clamping post 4 is smaller than the size of the cutter, the final size c2 of the hole surrounded by the clamping post 4 is equal to the size b of the male die 8 when the male die 8 performs blanking, and the size c2 of the clamping post 4 is changed back to the size c1 by the radial elasticity of the tension spring 3 when the male die 8 exits.

Similarly, when the transfer die is transferred to the heat sealing device, the heat sealing head located above the transfer die moves downward, pushing the sheet 10 jammed in the card post 4 onto the work for heat sealing, and returning to the original position along the original path.

The size of the model hole can be automatically scaled, the clamping of the sheet 10 is realized, and meanwhile, the processing precision of the conveying die hole can be reduced, so that the cost is reduced, the conveying die is limited by the clamping column 4, the male die 8 is not in direct contact with the conveying die, the damage of the conveying die is reduced, the service life is prolonged, and only the clamping column 4 needs to be replaced when parts are replaced.

Further, the hardness of the material of the clamping column 4 used for the model hole is smaller than that of the male die 8, so that the male die 8 is not damaged easily when a punched product enters a conveying die, and the service life of the male die 8 is prolonged.

Claims

1. The utility model provides a sheet material conveying mould, includes mould (1), lower mould (2) of being connected with mould (1) on, go up mould (1) and lower mould (2) and all be provided with be used for installing extension spring (3) and place guide slot (5) of card post (4), go up the central part of mould (1) and lower mould (2) all be provided with the model hole that is surrounded by guide slot (5), the model hole can pass from punch (8) of die-cut device, its characterized in that: the guide slot (5) bottom is provided with recess (6) that are used for placing card post (4) and is used for fixed post (7) of extension spring (3), the shape of recess (6) is the bar, its long axis and extension spring (3) circumference are crossing, card post (4) are the column, its upper bottom surface and lower bottom surface all are provided with projection (41) corresponding with recess (6), projection (41) can follow recess (6) long axis direction translation in recess (6), card post (4) side be provided with extension spring (3) matched with extension spring spacing groove (42), be provided with guide way (43) near upper bottom surface department on the side opposite with extension spring spacing groove (42), guide way (43) below is provided with card silo (44), be provided with flange portion (45) between guide way (43) and the card silo (44), the hole site size that flange portion (45) of card post (4) enclosed under the initial condition is less than terrace die (8) size.

2. The sheet conveying die according to claim 1, wherein: the hardness of the material of the clamping column (4) is smaller than that of the material of the male die (8).