CN213440928U

CN213440928U - Die-cut device in mouth of a river of preapring for an unfavorable turn of events shape

Info

Publication number: CN213440928U
Application number: CN202021662935.3U
Authority: CN
Inventors: 范艇海; 陈军; 王竞竞; 汪洋
Original assignee: ZHUHAI YINGCHENG ELECTRONIC TECHNOLOGY CO LTD
Current assignee: ZHUHAI YINGCHENG ELECTRONIC TECHNOLOGY CO LTD
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-06-15
Anticipated expiration: 2030-08-11

Abstract

The utility model provides an anti-deformation nozzle punching device, which comprises an upper die and a lower die, wherein the upper die is provided with a plurality of punching cutters, the lower die comprises a lower backing plate and a lower template, and the lower backing plate is provided with a first blanking hole; the lower bolster sets up on the lower bolster, be provided with second blanking hole and a plurality of locating piece on the lower bolster, second blanking hole switches on with first blanking hole, the locating piece sets up the both sides in second blanking hole, it is protruding to be provided with constant head tank and first location on the locating piece, the constant head tank switches on with second blanking hole, first location is protruding to be set up in the constant head tank and to extend along the length direction of constant head tank, the bellied roof of first location is provided with plane portion and rake, the rake is connected with plane portion, the rake extends along the width direction downward sloping of constant head tank, plane portion is provided with the edge of a knife towards one side in second blanking hole, the edge of a knife and die-cutting knife's blade mutual disposition. The utility model has the advantages of prevent that the product from warping, work efficiency is high.

Description

Die-cut device in mouth of a river of preapring for an unfavorable turn of events shape

Technical Field

The utility model relates to a die-cut device field in mouth of a river specifically is a die-cut device in mouth of a river of preapring for an unfavorable turn of events shape.

Background

For some thin-wall plastic products with irregular shapes, after injection molding is finished, in order to avoid deformation, the water gap materials are generally separated manually, and the method is low in working efficiency, wastes more manpower and is not beneficial to reducing the production cost.

In the prior art, a die-cutting die is adopted to cut off the nozzle material, but the existing die-cutting die easily causes the deformation of the thin-wall plastic product during die-cutting, influences the quality of the thin-wall plastic product and causes the high failure rate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a die-cut device in mouth of a river that can prevent thin wall plastic product deformation.

In order to achieve the purpose, the utility model provides an anti-deformation water gap punching device, which comprises an upper die and a lower die, wherein a plurality of punching cutters are arranged on the upper die, the lower die comprises a lower backing plate and a lower template, and a first blanking hole is arranged on the lower backing plate; the lower bolster sets up on the lower bolster, be provided with second blanking hole and a plurality of locating piece on the lower bolster, second blanking hole switches on with first blanking hole, the locating piece sets up the both sides in second blanking hole, it is protruding to be provided with constant head tank and first location on the locating piece, the constant head tank switches on with second blanking hole, first location is protruding to be set up in the constant head tank and to extend along the length direction of constant head tank, the bellied roof of first location is provided with plane portion and rake, the rake is connected with plane portion, the rake extends along the width direction downward sloping of constant head tank, plane portion is provided with the edge of a knife towards one side in second blanking hole, the edge of a knife is with the die-cut cooperation of die-cut sword.

According to the scheme, the first positioning bulge is arranged in the positioning groove, and the top wall of the first positioning bulge is provided with the plane part and the inclined part and is used for being tightly attached to the surface of the thin-wall plastic product, so that the thin-wall plastic product is prevented from deforming when a punching knife punches the thin-wall plastic product, and the quality of the product is ensured; the automatic water outlet discharging device is used for automatically discharging water through arranging a first blanking hole and a second blanking hole which are communicated up and down; through setting up a plurality of die-cutting cutters, be favorable to separating mouth of a river material and a plurality of thin wall plastic simultaneously, be favorable to improving work efficiency.

The positioning groove is internally provided with a second positioning bulge and two third positioning bulges, the second positioning bulge extends along the length direction of the positioning groove, the second positioning bulge is arranged at the first side of the positioning groove, and the second positioning bulge is flush with the top wall of the lower template; the third location is protruding to be set up in the second side of constant head tank, and the third location is protruding in the roof of lower bolster.

The further scheme is that the second blanking hole includes two first hole sections that intersect perpendicularly, and the tip of first hole section is provided with two second hole sections, and the second hole section switches on with the constant head tank.

In a further scheme, the shape of the first blanking hole is the same as that of the second blanking hole.

Further, the width of the first blanking hole is larger than that of the second blanking hole.

The further scheme is that the upper die sequentially comprises an upper die base, an upper padding plate, an upper clamping plate and a stripper plate from top to bottom, a plurality of cutter containing grooves are formed in the stripper plate, the cutter containing grooves are communicated with the second blanking holes, the punching cutters sequentially penetrate through the upper padding plate and the upper clamping plate and are arranged in the cutter containing grooves, gaps are formed between the upper padding plate and the upper clamping plate, and the height of each gap is larger than the distance between the cutting edge of each punching cutter and the edge of the knife in the vertical direction.

The further scheme is that a plurality of first mounting holes, a plurality of first elastic pieces, a plurality of second mounting holes and a plurality of second elastic pieces are arranged on the upper clamping plate, the first mounting holes are located between two adjacent second mounting holes, the first elastic pieces are arranged in the first mounting holes, and the second elastic pieces are arranged in the second mounting holes.

The discharging plate is provided with a plurality of third mounting holes, a plurality of first ejection pins and a plurality of material pressing blocks, the third mounting holes are respectively communicated with the first mounting holes and the second blanking holes, the first ejection pins are arranged in the third mounting holes, and the first elastic pieces are elastically connected with the first ejection pins; the material pressing block is provided with a fourth mounting hole and a second material ejecting pin, the fourth mounting hole is communicated with the second mounting hole and the positioning groove respectively, the second material ejecting pin is arranged in the fourth mounting hole, and the second elastic piece is elastically connected with the second material ejecting pin.

Drawings

Fig. 1 is a structural diagram of a thin-walled plastic product to which the present invention is applied.

Fig. 2 is a cross-sectional view of an embodiment of the invention.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is a structural diagram of a lower die in the embodiment of the present invention.

Fig. 5 is a partially enlarged view at B in fig. 4.

Fig. 6 is a structural diagram of an upper die in the embodiment of the present invention.

Fig. 7 is an enlarged view at C in fig. 6.

The present invention will be further explained with reference to the drawings and examples.

Detailed Description

Referring to fig. 1, the workpiece 1 of the present embodiment includes a nozzle charge 11 and eight thin-walled plastic products 12. The nozzle charge 11 comprises a vertical arm 111 and four first cross arms 112, and the lower part of the vertical arm 111 is simultaneously connected with the first ends of the four first cross arms 112. Two second cross arms 113 are symmetrically arranged at the second end of the first cross arm 112, and the second cross arms 113 are connected between the thin-walled plastic product 12 and the first cross arm 112. The thin-walled plastic product 12 is a strip shape as a whole, the thin-walled plastic product 12 includes a first main body portion 121 and a second main body portion 122, boss portions 123 are respectively disposed at two ends of the first main body portion 121 in the length direction, and the boss portions 123 are located on a first side of the first main body portion 121 and protrude downward. The second body portion 122 is connected to a second side of the first body portion 121, and the second body portion 122 extends obliquely downward along the first body portion 121.

Referring to fig. 2 to 7, the nozzle blanking device of the present embodiment includes an upper mold 2 and a lower mold 3. Go up mould 2 and include upper die base 20, upper padding plate 21, punch holder 22 and stripper 23 from top to bottom in proper order, upper die base 20 is connected with upper padding plate 21, and punch holder 22 and stripper 23 are connected, are provided with four third elastic component 24 between upper padding plate 21 and the

upper padding plate

22, and 24 elasticity butt of third elastic component are between upper padding plate 21 and punch holder 22 for before die-cut, have space 25 between upper padding plate 21 and the punch holder 22. The upper backing plate 21 is provided with eight punching knives 26 downwards, the discharging plate 23 is provided with eight material pressing blocks 27, the material pressing blocks 27 are provided with cutter accommodating grooves 271, the lower portions of the punching knives 26 penetrate through the upper clamping plate 22 and are arranged in the cutter accommodating grooves 271, and the punching knives 26 are in clearance fit with the cutter accommodating grooves 271.

The lower die 3 comprises a lower backing plate 31 and a lower template 32, the lower template 32 is arranged on the lower backing plate 31, a first blanking hole 311 is formed in the lower backing plate 31, a second blanking hole 321 and eight positioning blocks 33 are formed in the lower template 32, and the first blanking hole 311, the second blanking hole 321 and the cutter accommodating groove 271 are communicated up and down. The positioning blocks 33 are disposed at two sides of the second blanking hole 321, the positioning block 33 is provided with a positioning groove 331, a first positioning protrusion 332 and a second positioning protrusion 333, and the first positioning protrusion 332 and the second positioning protrusion 333 are arranged in the positioning groove 331 along the width direction of the positioning groove 331. The top wall of the first positioning projection 332 is provided with a flat portion 3321 and an inclined portion 3322. In the width direction of the positioning groove 331, the first side of the planar portion 3321 faces the second blanking hole 321. The second side of the plane portion 3321 is connected to the first side of the inclined portion 3322, the second side of the inclined portion 3322 extends obliquely downward in the width direction of the positioning groove 331, and the second side of the inclined portion 3322 is connected to the root portion of the second positioning protrusion 333. In the vertical direction, the top wall of the second positioning protrusion 333 is flush with the top wall of the lower template 32, and the plane part 3321 is lower than the top wall of the lower template 32, so as to form a mounting position for placing the thin-walled plastic product 12. When the thin-walled plastic product 12 is placed in the positioning groove 331, the first main body portion 121 is located on the planar portion 3321, the second main body portion 122 is located on the inclined portion 3322, and the nozzle material 11 is located above the second blanking hole 321. A cutting edge 3323 is provided on a first side of the planar portion 3321, the cutting edge 3323 being in die-cutting engagement with the die-cutting blade 26. In the vertical direction, the distance from the cutting edge 3323 to the cutting edge of the punching blade 26 is smaller than the height of the gap 25, so that the cutting edge of the punching blade 26 can protrude out of the blade accommodating groove 271 for cutting the thin-walled plastic product 12 and the nozzle material 11. Since the first main body portion 121 is closely attached to the planar portion 3321, and the second main body portion 122 is closely attached to the inclined portion 3322, the thin-walled plastic product 12 is prevented from being deformed.

The upper clamp plate 22 is provided with four first mounting holes 221, four first elastic members 222, eight second mounting holes 223, and eight second elastic members 224. The first mounting hole 221 is located between two adjacent second mounting holes 223. The first elastic member 222 is disposed in the first mounting hole 221, and the second elastic member 224 is disposed in the second mounting hole 223.

Still be provided with third mounting hole 231 and first liftout pin 232 on stripper 23, third mounting hole 231 switches on with first mounting hole 221 and second blanking hole 321 respectively, first liftout pin 232 sets up in third mounting hole 231, first liftout pin 232 and third mounting hole 231 clearance fit, first elastic component 222 and the upper portion elastic connection of first liftout pin 232, the lower part butt of first liftout pin 232 is on the surface of mouth of a river material 11, be used for die-cut completion back, rely on the automatic mouth of a river material 11 of second blanking hole 321 discharge mouth of a river material 11 of self gravity and the elasticity of first elastic component 222.

The material pressing block 27 is provided with a fourth mounting hole 272 and a second ejecting pin 273, the fourth mounting hole 272 is respectively communicated with the second mounting hole 223 and the positioning groove 331, the second ejecting pin 273 is arranged in the fourth mounting hole 272, the second ejecting pin 273 is in clearance fit with the fourth mounting hole 272, the second elastic part 224 is elastically connected with the upper part of the second ejecting pin 273, the lower part of the second ejecting pin 273 abuts against the surface of the thin-wall plastic product 12, and the thin-wall plastic product 12 is fixed and prevented from being tilted upwards and deformed in the punching process.

In fig. 4, with reference to fig. 2, the second blanking hole 321 includes two first hole segments 3211, the middle portions of the two first hole segments 3211 are vertically intersected, the second hole segments 3212 are disposed on two sides of the end portion of the first hole segment 3211, and the second hole segments 3212 are communicated with the positioning groove 331. The shape of the first blanking hole 311 is the same as that of the second blanking hole 321. The width of each hole segment of the first blanking hole 311 is greater than the width of the corresponding hole segment of the second blanking hole 321.

In fig. 5, the first positioning protrusion 332 and the second positioning protrusion 333 both extend along the length direction of the positioning groove 331, and the end of the first positioning protrusion 332 has a predetermined distance from the groove wall of the positioning groove 331 for avoiding the boss portion 123 of the thin-walled plastic product 12.

Two third positioning protrusions 334 are further disposed in the positioning groove 331, the third positioning protrusions 334 are disposed on a side of the first positioning protrusion 332 away from the second positioning protrusion 333, and the second hole segment 3212 is located between the two third positioning protrusions 334. The third positioning protrusion 334 protrudes from the top wall of the lower plate 32 in the vertical direction.

In fig. 6 and 7, two first limiting grooves 274 are further disposed on the swaging block 27, and the two first limiting grooves 274 are located on two sides of the tool receiving groove 271. Sixteen second limiting grooves 233 are formed in the discharging plate 23, and the second limiting grooves 233 and the first limiting grooves 274 are arranged in a one-to-one correspondence and are communicated with each other. The third positioning protrusion 334 is disposed in the second limiting groove 233 and the first limiting groove 274, and functions to limit the offset of the punching blade 26 and the cutter receiving groove 271, thereby improving the punching accuracy.

The working process of the utility model is as follows: in the state that the upper die 2 and the lower die 3 are opened, the workpiece 1 is placed on the lower die 3, so that each thin-wall plastic product 12 is installed in the corresponding positioning groove 331; then, the upper die 2 and the lower die 3 are closed, so that the stripper plate 23 is tightly attached to the lower die plate 32, at this time, the first ejector pin 232 and the second ejector pin 273 are respectively abutted to the workpiece 1, and the first elastic piece 222 and the second elastic piece 224 are compressed; then, the upper die base 20 and the upper backing plate 21 continue to move downwards, so that the gap 25 between the upper backing plate 21 and the upper clamping plate 22 is reduced, the third elastic element 24 is compressed, the cutting edge of the punching knife 26 penetrates through the knife containing groove 271, and the cutting edge of the punching knife 26 moves towards the cutting edge 3323 of the first positioning protrusion 332 and cuts off the nozzle material 11; then, the upper die 2 and the lower die 3 are opened, and in the process of opening the dies, the upper die base 20 and the upper backing plate 21 move upwards under the elastic action of the third elastic element 24, so as to drive the punching knife 26 to return to the original position.

To sum up, it can be seen that the utility model discloses to the irregular shape of thin wall plastic product, set up in the constant head tank with the first location arch of the inseparable laminating of thin wall plastic product to through second liftout round pin butt on thin wall plastic product surface, prevent thin wall plastic product perk and deformation, with die-cut precision and the quality that improves thin wall plastic product.

Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and are not intended to limit the scope of the present invention, as those skilled in the art will appreciate that various changes and modifications may be made without departing from the spirit and scope of the invention, and it is intended to cover all such modifications, equivalents, and improvements as fall within the true spirit and scope of the invention.

Claims

1. The utility model provides a die-cut device in mouth of a river of preapring for an unfavorable turn of events shape, includes mould and lower mould, upward be provided with a plurality of die-cutting cutters on the mould, its characterized in that, the lower mould includes:

the lower base plate is provided with a first blanking hole;

the lower bolster, the lower bolster sets up on the lower bolster, be provided with second blanking hole and a plurality of locating piece on the lower bolster, the second blanking hole with first blanking hole switches on, the locating piece sets up the both sides in second blanking hole, it is protruding to be provided with constant head tank and first location on the locating piece, the constant head tank with second blanking hole switches on, first location is protruding to be set up follow in the constant head tank the length direction of constant head tank extends, the bellied roof of first location is provided with plane portion and rake, the rake with plane portion connects, the rake is followed the width direction downward sloping of constant head tank extends, plane portion towards one side in second blanking hole is provided with the edge of a knife, the edge of a knife with the die-cut cooperation of die-cut sword.

2. A nozzle tip cutting device as claimed in claim 1, wherein:

a second positioning bulge and two third positioning bulges are arranged in the positioning groove, the second positioning bulge extends along the length direction of the positioning groove, the second positioning bulge is arranged on the first side of the positioning groove, and the second positioning bulge is flush with the top wall of the lower template;

the third positioning bulge is arranged on the second side of the positioning groove, and the third positioning bulge protrudes from the top wall of the lower template.

3. A nozzle tip cutting device as claimed in claim 1 or claim 2, wherein:

the second blanking hole comprises two first hole sections which are vertically crossed, two second hole sections are arranged at the end parts of the first hole sections, and the second hole sections are communicated with the positioning grooves.

4. A nozzle tip cutting device as claimed in claim 3, wherein:

the shape of the first blanking hole is the same as that of the second blanking hole.

5. A nozzle tip cutting device as claimed in claim 3, wherein:

the width of the first blanking hole is larger than that of the second blanking hole.

6. A nozzle tip cutting device as claimed in claim 1 or claim 2, wherein:

the upper die sequentially comprises an upper die base, an upper base plate, an upper clamping plate and a discharging plate from top to bottom, a plurality of cutter accommodating grooves are formed in the discharging plate, the cutter accommodating grooves are communicated with the second blanking holes, the punching cutter sequentially penetrates through the upper base plate, the upper clamping plate is arranged in the cutter accommodating grooves, gaps are formed between the upper base plate and the upper clamping plate, and in the vertical direction, the height of each gap is larger than the distance between the cutting edge of the punching cutter and the distance between the cutting edges.

7. A nozzle blanking device as claimed in claim 6, wherein:

the upper clamping plate is provided with a plurality of first mounting holes, a plurality of first elastic pieces, a plurality of second mounting holes and a plurality of second elastic pieces, the first mounting holes are located between every two adjacent second mounting holes, the first elastic pieces are arranged in the first mounting holes, and the second elastic pieces are arranged in the second mounting holes.

8. A nozzle tip cutting device as claimed in claim 7, wherein:

a plurality of third mounting holes, a plurality of first ejection pins and a plurality of material pressing blocks are formed in the discharging plate, the third mounting holes are respectively communicated with the first mounting holes and the second blanking holes, the first ejection pins are arranged in the third mounting holes, and the first elastic pieces are elastically connected with the first ejection pins;

the material pressing block is provided with a fourth mounting hole and a second material ejecting pin, the fourth mounting hole is communicated with the second mounting hole and the positioning groove respectively, the second material ejecting pin is arranged in the fourth mounting hole, and the second elastic piece is elastically connected with the second material ejecting pin.