CN216031336U

CN216031336U - Heating die-cutting die for punching plastic sheets

Info

Publication number: CN216031336U
Application number: CN202121665548.XU
Authority: CN
Inventors: 王晓博
Original assignee: Suzhou Chenhao Laser Technology Co ltd
Current assignee: Suzhou Chenhao Laser Technology Co ltd
Priority date: 2021-07-21
Filing date: 2021-07-21
Publication date: 2022-03-15
Anticipated expiration: 2031-07-21

Abstract

The utility model relates to the technical field of dies, in particular to a heating die-cutting die for punching plastic sheets, which comprises an upper die body, wherein a first groove body which is through downwards is arranged at the lower part of the upper die body, a heating ring is sleeved in the first groove body, an electric wire is connected to the heating ring, one end of the electric wire penetrates through the side wall of the first groove body and is out of the first groove body, a second groove body which is larger than the first groove body in circle is arranged on the first groove body, a cutter is sleeved in the second groove body, a third groove body which is through upwards and larger than the second groove body in circle is arranged on the second groove body, and an upper template is movably connected in the third groove body. According to the utility model, the heating ring and the die are convenient to disassemble and assemble, the subsequent maintenance is convenient, and meanwhile, the cutting is quick during punching, the product is not easy to adhere after punching, and the stripping is quick.

Description

Heating die-cutting die for punching plastic sheets

Technical Field

The utility model relates to the technical field of dies, in particular to a heating die-cutting die for punching plastic sheets.

Background

The cutting die is a die for punching products, and is required to be used for punching a plurality of products, such as electrode pole pieces, plastic sheets and the like.

In the prior art, like the continuous die cutting machine of car brake air plug rubber diaphragm semi-finished product that chinese patent publication No. CN202462514U discloses, it includes power unit, frame, conveyer belt, the die-pressing and the electric heating mechanism of reciprocating motion about by power unit drive, the die-pressing include support arm, template, connecting piece, heating block and punching press cutting die, the support arm constitute by support arm diaphragm and the support arm diaphragm both ends downwardly extending's support arm vertical plate, support arm diaphragm and template between have the connecting piece, the below rigid coupling of template have punching press cutting die, punching press cutting die's top put the heating block, heating block and electric heating mechanism between have the wire, support arm diaphragm and template between be provided with elastomeric element.

The utility model discloses a through setting up the heating piece to the cutter heating, but this kind of heating piece is difficult and the mould dismouting, and is not convenient when follow-up maintenance.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heating die-cutting die for punching plastic sheets, which is convenient to assemble and disassemble a heating ring and a die, convenient to maintain subsequently, and quick to cut, is not easy to adhere to a product after punching and is quick to strip materials.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a die-cut plastic sheet heating cross cutting die, includes the last die body, the lower part of going up the die body is provided with downward penetrating first cell body, the cover is equipped with the heating circle in the first cell body, be connected with the electric wire on the heating circle, the one end of electric wire is followed the lateral wall of first cell body runs through and goes out, be provided with the second cell body of its big round more on the first cell body, the cover is equipped with the cutter in the second cell body, be provided with the third cell body that upwards penetrating and its big round more on the second cell body, swing joint has the cope match-plate pattern in the third cell body.

Optionally, the cutter includes a flange and a cutter frame integrally connected with the flange, the flange is sleeved in the second groove body and just covers the heating ring, and the cutter frame penetrates through the first groove body and is out.

Optionally, a buffer mechanism is arranged between the flanging and the upper template.

Optionally, buffer gear includes the guide bar, the lower part of cope match-plate pattern be provided with first fixed orifices, with the upper portion cover of guide bar is established, be provided with the second fixed orifices on the second cell body, with the lower part cover of guide bar is established, be provided with the guide orifice on the turn-ups, with the guide bar slides and sets up, the cover is equipped with first spring on the guide bar, first spring upwards with the cope match-plate pattern is contradicted, downwards with the turn-ups is contradicted.

Optionally, a stripping mechanism is arranged in the knife frame.

Optionally, the stripping mechanism includes a stripping plate, the stripping plate is slidably disposed on the inner side of the knife frame, a telescopic assembly is disposed between the stripping plate and the upper die plate, a second spring is sleeved outside the telescopic assembly, and the second spring upwards abuts against the upper die plate and downwards abuts against the stripping plate.

Optionally, the telescopic assembly comprises a telescopic rod and a fixed cylinder arranged on the upper part of the telescopic rod in a sliding manner.

Optionally, the lower portion of the telescopic rod is in threaded connection with the stripper plate, a screw penetrates through the upper die plate, and the screw is in threaded connection with the upper portion of the fixed cylinder.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the heating ring is arranged, so that the heating ring can be conveniently and fully contacted with the flanging, the heat can be better conducted to the knife frame, and the sheet can be cut off more easily when the heated knife frame is punched.

2. According to the utility model, the buffering mechanism is arranged, when the cutter frame punches the sheet, the first spring generates elastic deformation and moves upwards for a certain distance to reduce and offset the impact force during punching, the sheet is cut off after the cutter frame continues to move downwards, and the cutter frame moves upwards to reset after moving upwards.

3. The utility model is provided with the stripping mechanism, when the knife frame cuts off the sheet, the stripping plate moves upwards to extrude the second spring, the second spring stores force, after moving upwards on the knife frame, the stripping plate is subjected to the elastic force of the second spring to rapidly push the cut sheet out from the inner side of the knife frame, and the sheet is prevented from being clamped at the inner side of the knife frame, and the section is further heated and melted to cause damage.

4. The utility model has simple structure, convenient disassembly and assembly and convenient subsequent maintenance.

Drawings

FIG. 1 is an exploded view of a cutting die of the present invention;

FIG. 2 is another exploded view of the cutting die of the present invention;

FIG. 3 is a schematic structural diagram of an upper mold body according to the present invention;

FIG. 4 is a schematic structural diagram of an upper template of the present invention;

FIG. 5 is a schematic structural view of the stripping mechanism of the present invention;

FIG. 6 is a schematic structural diagram of an upper mold body according to the present invention;

FIG. 7 is a schematic cross-sectional view taken along A-A of FIG. 6;

fig. 8 is a schematic cross-sectional view taken along B-B in fig. 6 according to the present invention.

In the figure: 1. feeding a mold body; 2. a first tank body; 3. heating a ring; 4. an electric wire; 5. a second tank body; 6. a cutter; 61. flanging; 62. a knife frame; 7. a third tank body; 8. mounting a template; 9. a buffer mechanism; 10. a guide bar; 11. a first fixing hole; 12. a second fixing hole; 13. a guide hole; 14. a first spring; 15. a material stripping mechanism; 16. a material removing plate; 17. a telescoping assembly; 171. a telescopic rod; 172. a fixed cylinder; 18. a second spring; 21. and (4) screws.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In an embodiment, referring to fig. 1 to 8, a die cutting die for heating plastic sheets includes an upper die body 1, a first through groove body 2 is disposed at a lower portion of the upper die body 1, a heating ring 3 is sleeved in the first groove body 2, an electric wire 4 is connected to the heating ring 3, one end of the electric wire 4 penetrates through a side wall of the first groove body 2, the heating ring 3 is electrically heated, and the die cutting die is heated rapidly.

A second groove body 5 which is larger than the first groove body by one circle is arranged on the first groove body 2, a cutter 6 is sleeved in the second groove body 5, a third groove body 7 which is through upwards and larger than the second groove body by one circle is arranged on the second groove body 5, an upper template 8 is movably connected in the third groove body 7, and the movable connection mode can be screw connection, clamping connection and the like; after the upper die plate 8 is installed, the cutter 6 and the heating ring 3 are just limited downwards, and meanwhile, the later-period maintenance is convenient and fast.

Specifically, cutter 6 includes turn-ups 61 and the sword frame 62 with turn-ups 61 an organic whole connection, turn-ups 61 cover is established in second cell body 5, just in time cover with heating circle 3, sword frame 62 runs through and goes out from first cell body 2, before die-cut, heating circle 3 heats turn-ups 61, turn-ups 61 is heated the conduction and gives sword frame 62, when die-cut, the sword frame 62 that is heated makes the sheet easier, cut off more fast, cut off produced small deckle edge also by the hot melt, make the cutting surface flush smoothly, no deckle edge, the product is pleasing to the eye and the quality have been improved.

Be provided with buffer gear 9 between turn-ups 61 and cope match-plate pattern 8 for the die-cut buffering effect occasionally of sword frame 62 reduces impact force when die-cut, changes the direct and die-cut current situation of sheet rigidity of sword frame 62 among the prior art, has protected sword frame 62, prevents that sword frame 62 from deforming, has prolonged the life of sword frame 62.

Specifically, buffer gear 9 includes guide bar 10, the lower part of cope match-plate pattern 8 is provided with first fixed orifices 11, establish with the upper portion cover of guide bar 10, be provided with second fixed orifices 12 on the second cell body 5, establish with the lower part cover of guide bar 10, be provided with guiding hole 13 on the turn-ups 61, slide with guide bar 10 and set up, the cover is equipped with first spring 14 on the guide bar 10, first spring 14 upwards conflicts with cope match-plate pattern 8, conflict with turn-ups 61 downwards, when the die-cut sheet of knife rest 62, first spring 14 produces elastic deformation, upwards shift one section distance, impact force when reducing and offsetting die-cut, cut off the sheet after continuing to move down until knife rest 62, die-cut finishes moving up the back on the whole at the mould, because first spring 14 elasticity, knife rest 62 shifts up and resets, through this design, knife rest 62 has been protected.

The material stripping mechanism 15 is arranged in the cutter frame 62, the cutter frame 62 is in a frame shape, the punched material is prevented from falling off when being clamped on the inner side of the cutter frame, and the material stripping mechanism 15 is arranged to push the material down.

Specifically, the stripping mechanism 15 includes a stripping plate 16, the stripping plate 16 is slidably disposed on the inner side of the knife frame 62, a telescopic assembly 17 is disposed between the stripping plate 16 and the upper die plate 8, a second spring 18 is sleeved outside the telescopic assembly 17, the second spring 18 abuts against the upper die plate 8 upwards and abuts against the stripping plate 16 downwards, when the knife frame 62 cuts off a sheet, the stripping plate 16 moves upwards to press the second spring 18, the second spring 18 stores force, after the knife frame 62 moves upwards, the stripping plate 16 receives the elastic force of the second spring 18 to rapidly push the cut sheet out from the inner side of the knife frame 62, and the sheet is prevented from being clamped on the inner side of the knife frame 62, and the section is further heated and melted to cause damage.

Specifically, the telescopic assembly 17 comprises a telescopic rod 171 and a fixed cylinder 172 slidably arranged at the upper part of the telescopic rod 171, wherein the lower part of the telescopic rod 171 is in threaded connection with the stripper plate 16, a screw 21 penetrates through the upper template 8, and the screw 21 is in threaded connection with the upper part of the fixed cylinder 172, so that the telescopic assembly 17 is convenient to disassemble and assemble; the telescopic assembly 17 can play a role in telescoping and guiding when the stripper plate 16 moves up and down.

The working principle is as follows: when the die cutting plastic sheet heating die cutting die is used, firstly, a sheet is placed on a lower die, then an upper die body 1 moves downwards under the driving of a hydraulic press, a heated knife frame 62 is abutted to the sheet, a first spring 14 generates elastic deformation, the knife frame 62 and a stripper plate 16 move upwards for a certain distance to reduce and offset the impact force during die cutting, the knife frame 62 moves downwards continuously, the knife frame 62 gradually extends into a cutter groove in the lower die, the sheet is cut off, the stripper plate 16 moves upwards again, a second spring 18 is pressed to store force, after die cutting is finished, after the die integrally moves upwards, the knife frame 62 moves upwards to reset due to the elastic force of the first spring 14, and the stripper plate 16 moves downwards to push out the material on the inner side of the stripper plate due to the elastic force of the second spring 18.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a die-cut plastic sheet heating cross cutting die which characterized in that: including last die body (1), the lower part of going up die body (1) is provided with first cell body (2) penetrating downwards, the cover is equipped with heating ring (3) in first cell body (2), be connected with electric wire (4) on heating ring (3), the one end of electric wire (4) is followed the lateral wall of first cell body (2) runs through and goes out, be provided with second cell body (5) of its big round more on first cell body (2), the cover is equipped with cutter (6) in second cell body (5), be provided with third cell body (7) that upwards penetrate and its big round more on second cell body (5), swing joint has cope match-plate pattern (8) in third cell body (7).

2. A die cutting and heating die cutting die for cutting plastic sheets according to claim 1, wherein: the cutter (6) comprises a flanging (61) and a cutter frame (62) which is integrally connected with the flanging (61), the flanging (61) is sleeved in the second groove body (5) and just covers the heating ring (3), and the cutter frame (62) penetrates through the first groove body (2) and is discharged.

3. A die cutting and heating die cutting die for cutting plastic sheets according to claim 2, wherein: and a buffer mechanism (9) is arranged between the flanging (61) and the upper template (8).

4. A die cutting and heating die cutting die for cutting plastic sheets according to claim 3, wherein: buffer gear (9) include guide bar (10), the lower part of cope match-plate pattern (8) is provided with first fixed orifices (11), with the upper portion cover of guide bar (10) is established, be provided with second fixed orifices (12) on second cell body (5), with the lower part cover of guide bar (10) is established, be provided with guide orifices (13) on turn-ups (61), with guide bar (10) slide to set up, the cover is equipped with first spring (14) on guide bar (10), first spring (14) upwards with cope match-plate pattern (8) are contradicted, down with turn-ups (61) are contradicted.

5. A die cutting and heating die cutting die for cutting plastic sheets according to claim 2, wherein: the knife frame (62) is internally provided with a stripping mechanism (15).

6. A die cutting and heating die cutting die for cutting plastic sheets according to claim 5, wherein: the stripping mechanism (15) comprises a stripping plate (16), the stripping plate (16) is arranged on the inner side of the knife frame (62) in a sliding mode, a telescopic assembly (17) is arranged between the stripping plate (16) and the upper die plate (8), a second spring (18) is sleeved outside the telescopic assembly (17), and the second spring (18) upwards abuts against the upper die plate (8) and downwards abuts against the stripping plate (16).

7. The die cutting and heating die cutting die for cutting plastic sheets according to claim 6, wherein: the telescopic assembly (17) comprises a telescopic rod (171) and a fixed cylinder (172) which is arranged on the upper portion of the telescopic rod (171) in a sliding mode.

8. The die cutting and heating die cutting die for cutting plastic sheets according to claim 7, wherein: the lower portion of the telescopic rod (171) is in threaded connection with the stripper plate (16), a screw (21) penetrates through the upper die plate (8), and the screw (21) is in threaded connection with the upper portion of the fixed cylinder (172).