Double faced adhesive tape die cutting machining die capable of preventing after-tack

Abstract

A double faced adhesive tape die cutting machining die capable of preventing after-tack comprises a die holder, a die cutter and a cushion punching plate, the die cutter is arranged at the bottom of the die holder, and the cushion punching plate is located below the die holder and the die cutter. The die cutter is a double-peak cutter, the blade faces on the two sides of the die cutter are designed to be inclined outwards, and the blade point at the bottom end of the die cutter is designed to be rounded. According to the utility model, the die blade with the inclined blade surface and the chamfered blade point is designed, so that the double-faced adhesive tape can be quickly and accurately demoulded and discharged waste after die cutting, and the risk of after-tack of the double-faced adhesive tape is effectively reduced; the anti-sticking coating coated on the edge surface of the die blade further reduces the after-sticking problem of the double-faced adhesive tape; the pad punching plate provided with the pad punching groove can effectively protect the edge point of the die cutter; the positioning sliding rod can ensure that the process of the die cutting the double-faced adhesive tape is kept vertical, and the cutting quality of the double-faced adhesive tape is prevented from being influenced by inclination of a die cutter; the limiting clamping ring can ensure that the punching depth of the die cutter is more accurate and reliable; the utility model has the advantages of strong practicability and strong popularization significance.

Description

Technical Field

[0001] The utility model relates to the field of material processing, in particular to a double-sided adhesive die-cutting processing die capable of preventing back-sticking. Background Art

[0002] Double-sided adhesive tape often needs die-cutting in the production process, that is, the double-sided adhesive tape is punched by driving the cutting die to cut it partially or completely to form the corresponding double-sided adhesive tape product. However, due to the sticky characteristics of double-sided adhesive tape, during the demoulding and waste discharge operations after conventional double-sided adhesive tape die-cutting, the problem of double-sided adhesive tape sticking to the mold always occurs, which greatly affects the efficiency of double-sided adhesive tape die-cutting. Utility Model Content

[0003] Based on this, it is necessary to provide a double-sided adhesive die-cutting processing mold that prevents back sticking in view of the deficiencies in the prior art.

[0004] A double-sided adhesive die-cutting processing die for preventing back-sticking, comprising a die base, a die knife and a backing plate, wherein the die knife is arranged at the bottom of the die base, and the backing plate is located below the die base and the die knife. The die knife is a double-peaked knife, the blade surfaces on both sides of which are designed to be inclined outward, and the bottom end of the die knife has a rounded corner design.

[0005] Furthermore, an anti-stick coating is provided on both side blade surfaces of the mold cutter, and the material of the anti-stick coating is Teflon material.

[0006] Furthermore, a pad punching groove is provided at the bottom of the pad punching plate, and the pad punching groove corresponds to the bottom blade tip of the die cutter, and its cross section is designed to be arc-shaped. The pad punching plate is made of PET material.

[0007] Furthermore, the double-sided adhesive die-cutting processing mold for preventing back-sticking also includes a plurality of positioning slide bars, and the mold base is correspondingly provided with a plurality of sliding through holes penetrating up and down. The plurality of positioning slide bars are all erected on the pad plate and are respectively penetrated in the corresponding sliding through holes.

[0008] Furthermore, the positioning slide bar is also provided with a limit clamp ring and a plurality of limit lock holes. The limit clamp ring comprises a ring body and a bayonet, the ring body is passed through the positioning slide bar, and the bayonet is horizontally passed through the ring body and the limit lock hole.

[0009] To sum up, the beneficial effects of the double-sided adhesive die-cutting processing mold for preventing back-sticking of the utility model are: by designing a mold blade with an inclined blade surface and a rounded blade tip, the double-sided adhesive can be demolded and discharged quickly and accurately after die-cutting, effectively reducing the risk of double-sided adhesive colloid back-sticking; the anti-stick coating coated on the blade surface of the die knife further reduces the problem of double-sided adhesive back-sticking; and the pad plate with a pad groove can effectively protect the blade tip of the die knife and reduce the risk of blade bumping and curling; the positioning slide bar can ensure that the mold remains vertical during the die-cutting process of the double-sided adhesive, avoiding the skew of the die knife affecting the cutting quality of the double-sided adhesive; the limit clamping ring can ensure that the cutting depth of the die knife is more accurate and reliable; the utility model is highly practical and has a strong promotional significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic structural diagram of a double-sided adhesive die-cutting processing mold for preventing back-sticking according to the utility model;

[0011] Figure 2 for Figure 1 Schematic diagram of the decomposition structure;

[0012] Figure 3 for Figure 2 Schematic diagram of the structure of the middle mold base;

[0013] Figure 4 for Figure 2 Schematic diagram of the structure of the middle pad punching plate;

[0014] Figure 5 for Figure 2 Schematic diagram of the exploded structure of the positioning slider. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0016] like Figures 1 to 5 As shown, the utility model provides a double-sided adhesive die-cutting processing mold 100 for preventing back-sticking, which includes a mold base 10, a mold knife 20 and a pad plate 30. The mold knife 20 is arranged at the bottom of the mold base 10, and the pad plate 30 is located below the mold base 10 and the mold knife 20.

[0017] The mold knife 20 is a double-peaked knife, and the blade surfaces on both sides thereof are designed to be inclined outwards, and the bottom blade tip of the mold knife 20 is designed to be rounded. When the double-peaked mold knife 20 punches down the double-sided adhesive tape, the rounded blade tip first contacts the adhesive and continues to press down until the double-sided adhesive tape is cut off and separated to both ends and the blade tip contacts the backing plate 30; when the mold knife 20 is lifted up again, due to the inclined design of the blade surface, there is a certain gap between the double-sided adhesive tape and the double-sided adhesive tape, thereby preventing the adhesive from sticking back to the mold knife 20 and affecting the demoulding and waste discharge operation.

[0018] Specifically, in this embodiment, the two side blade surfaces of the die cutter 20 are further provided with an anti-stick coating, and the material of the anti-stick coating is Teflon. The anti-stick coating of Teflon can further reduce the risk of the double-sided adhesive colloid back-adhesion, so that the thick double-sided adhesive can be smoothly demolded and discharged after cutting, thereby optimizing the die-cutting efficiency.

[0019] The bottom of the backing plate 30 is also provided with a backing groove 31, and the backing groove 31 corresponds to the bottom blade tip of the die cutter 20, and its cross section is designed to be arc-shaped. The material of the backing plate 30 is PET material. The backing plate 30 with the backing groove 31 enables the blade tip of the die cutter 20 to protrude downward from the bottom of the double-sided tape, thereby ensuring that the double-sided tape can be completely cut and formed. The backing plate 30 made of PET material has a certain flexibility, which can reduce the collision loss between the blade tip of the die cutter 20 and the backing plate 30, reduce the risk of the die cutter 20 curling, and increase the service life of the die-cutting mold.

[0020] The double-sided adhesive die-cutting processing die 100 for preventing back-sticking further comprises a plurality of positioning slide bars 40, and a plurality of sliding through holes 11 penetrating upward and downward are correspondingly provided on the die base 10. The plurality of positioning slide bars 40 are all erected on the backing plate 30 and are respectively penetrated in the corresponding sliding through holes 11. The positioning slide bars 40 can guide the die base 10 and the die cutter 20 below the die base 10 to maintain vertical lifting during the punching process, thereby preventing the die cutter 20 from being deflected during the die cutting process and affecting the die cutting quality.

[0021] The positioning slide bar 40 is also provided with a limit snap ring 41 and a plurality of limit lock holes 42. The limit snap ring 41 includes a ring body 411 and a bayonet 412. The ring body 411 is passed through the positioning slide bar 40, and the bayonet 412 is horizontally passed through the ring body 411 and the limit lock hole 42. The limit snap ring 41 passed through the positioning slide bar 40 can limit the minimum height of the die base 10 and the die cutter 20 when punching downward, which can not only prevent the die cutter 20 from punching too deep and causing collision, but also can adjust the limit so that the die cutter 20 punches to a corresponding depth to meet the die cutting processing requirements of different needs.

[0022] In summary, the beneficial effects of the double-sided adhesive die-cutting processing mold 100 for preventing back-sticking of the utility model are: by designing a mold blade with an inclined blade surface and a rounded blade tip, the double-sided adhesive can be demolded and discharged quickly and accurately after die-cutting, effectively reducing the risk of back-sticking of the double-sided adhesive colloid; the anti-stick coating coated on the blade surface of the die knife 20 further reduces the problem of back-sticking of the double-sided adhesive; and the pad plate 30 with the pad groove 31 can effectively protect the blade tip of the die knife 20 and reduce the risk of the blade being bumped and curled; the positioning slide bar 40 can ensure that the mold remains vertical during the die-cutting process of the double-sided adhesive, avoiding the skew of the die knife 20 affecting the cutting quality of the double-sided adhesive; the limiting clamp 41 can ensure that the punching depth of the die knife 20 is more accurate and reliable; the utility model is highly practical and has a strong promotional significance.

[0023] The above-mentioned embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A double-sided adhesive die-cutting die to prevent back-sticking, characterized in that: It includes a die base, a die knife and a backing plate. The die knife is arranged at the bottom of the die base, and the backing plate is located below the die base and the die knife. The die knife is a double-peaked knife, and the blade surfaces on both sides are designed to be inclined outward, and the bottom tip of the die knife is designed with rounded corners.

2. The double-sided adhesive die-cutting mold for preventing back-sticking according to claim 1, characterized in that: Anti-stick coatings are also provided on the cutting edges of both sides of the mold cutter, and the material of the anti-stick coatings is Teflon.

3. The double-sided adhesive die-cutting mold for preventing back-sticking according to claim 1, characterized in that: A pad punching groove is also provided at the bottom of the pad punching plate, and the pad punching groove corresponds to the bottom blade tip of the die cutter up and down, and its cross section is designed to be arc-shaped; the material of the pad punching plate is PET material.

4. The double-sided adhesive die-cutting mold for preventing back-sticking according to claim 1, characterized in that: It also includes a plurality of positioning slide bars, and the mold base is correspondingly provided with a plurality of sliding through holes penetrating up and down; the plurality of positioning slide bars are all erected on the pad punch plate and are respectively penetrated in the corresponding sliding through holes.

5. The double-sided adhesive die-cutting mold for preventing back-sticking according to claim 4, characterized in that: The positioning slide bar is also provided with a limit clamp ring and a plurality of limit lock holes; the limit clamp ring comprises a ring body and a bayonet pin, the ring body is penetrated on the positioning slide bar, and the bayonet pin is horizontally penetrated in the ring body and the limit lock hole.

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