Foam tape punching die

Abstract

The utility model relates to the field of punching die devices, and discloses a foam tape punching die which comprises a fixed die and a movable die, a punching groove is formed in the axis of the upper surface of the fixed die, sliding columns are fixedly connected to the left side and the right side of the upper surface of the fixed die, and sliding blocks are slidably connected to the outer cambered surfaces of the outer walls of the sliding columns. A fixing sleeve is fixedly connected to the axis of the upper surface of the movable die, a punching assembly is arranged in the movable die and comprises a sliding plate, multiple sets of evenly-distributed cylinders are fixedly connected to the lower surface of the sliding plate, through columns are fixedly connected to the top corners of the periphery of the top of the inner wall of the movable die, and springs are connected to the outer arc faces of the outer walls of the through columns in a sleeving mode. And strip-shaped grooves are formed in the left side and the right side of the lower surface of the movable mold. According to the foam punching device, the parts in the punching assembly are matched with one another through the connection relation, the foam is punched, the foam in the gap between the cutters is ejected in an auxiliary mode, and the punching effect of the device on the foam is enhanced.

Description

Technical Field

[0001] The utility model relates to the field of punching and cutting mould devices, in particular to a foam tape punching and cutting mould. Background Art

[0002] Foam tape is made of EVA or PE foam as the base material, with solvent-based pressure-sensitive adhesive coated on one or both sides and then covered with release paper. It has the functions of sealing and shock absorption. It has excellent sealing, compression deformation resistance, flame retardancy, wettability, etc. When the foam tape is produced by shaping, it is often punched through a punching die.

[0003] After searching, Chinese patent announcement number: CN204278130U discloses a foam tape punching die, including an upper die and a lower die, a module is arranged on the upper surface of the upper die, a nut is arranged between the module and the upper die, the nut is placed inside the module and the upper die, a knife plate die is arranged in the middle of the lower surface of the upper die, a knife die is arranged below the knife plate die, two punching plates are also arranged on the lower surface of the upper die, a lower die is arranged below the knife die, a template is arranged on the upper surface of the lower die, a number of mold cavities are arranged on the template, two punching holes are opened on the lower die, a depth adjustment nut is arranged between the module and the upper die for better adjustment, the distance between the two punching holes is equal to the distance between the two punching plates, so that the stamping is more stable, a knife plate die is arranged in the middle of the lower surface of the upper die, and a knife die is arranged below the knife plate die, the process of stripping waste materials is omitted, especially the timeliness of stripping waste materials does not need to be worried about, manpower is saved, waste is reduced, and cost is saved. The utility model has a simple structure and a reasonable design.

[0004] The above device has the following defects: after the cutter has punched out the foam that has been shaped in the mold, due to the friction of the foam tape on the blade, part of the foam will be brought out of the fixed mold when the cutter is taken out, causing damage to the finished foam product after punching, affecting the effect of the finished foam product after punching. Therefore, a foam tape punching mold is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a foam tape punching die, which aims to improve the problem in the prior art that the foam is adsorbed on the knife surface after punching and damages the foam finished product.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a foam tape punching mold, comprising a fixed mold and a movable mold, a punching groove is opened at the axis center of the upper surface of the fixed mold, sliding columns are fixedly connected to the left and right sides of the upper surface of the fixed mold, and the outer arc surface of the outer wall of the sliding column is slidably connected to the sliding block, and the upper surface of the movable mold is fixedly connected to the axis center with a fixed sleeve, and a punching component is arranged inside the movable mold, and the punching component comprises a slide plate, and a plurality of groups of evenly distributed cylinders are fixedly connected to the lower surface of the slide plate, and a through column is fixedly connected at the top corners of the inner wall of the movable mold, and a spring is sleeved on the outer arc surface of the outer wall of the through column, and strip grooves are opened on the left and right sides of the lower surface of the movable mold, and the upper surface of the fixed mold is fixedly connected with top blocks on the left and right sides near the punching groove, and an auxiliary component is arranged near the axis center of the lower surface of the movable mold.

[0007] As a further description of the above technical solution: the auxiliary component includes a mounting plate, a cutting knife is fixedly connected to the front surface of the mounting plate, a plurality of groups of evenly distributed mounting grooves are provided on the lower surface of the movable mold, and the mounting plate is detachably connected to the front surface of the inner wall of the mounting groove by fixing bolts.

[0008] As a further description of the above technical solution: the inner wall aperture of the slide plate is connected to the outer arc surface of the outer wall of the through column.

[0009] As a further description of the above technical solution: the bottom end of the spring is fixedly connected to the upper surface of the slide plate, and the top end of the spring is fixedly connected to the upper surface of the inner wall of the movable mold.

[0010] As a further description of the above technical solution: a plurality of groups of evenly distributed circular grooves are provided on the lower surface of the movable mold, and the bottom end of the cylinder penetrates and is connected to the inner wall of the circular groove of the movable mold.

[0011] As a further description of the above technical solution: the punching assembly also includes a fixing ring, which is fixedly connected to the inner wall of the circular groove on the lower surface of the movable mold, and a rubber clamp is fixedly connected to the lower surface of the fixing ring.

[0012] As a further description of the above technical solution: the two groups of sliding blocks are fixedly connected to the left and right surfaces of the movable mold.

[0013] As a further description of the above technical solution: the cross-sectional area of ​​the inner wall of the strip groove and the cross-sectional area of ​​the outer wall of the top block are adapted to each other, and the outer wall of the top block is connected through the inner wall groove of the strip groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the punching and cutting process of the foam is realized by using the mutual cooperation between the connection relationship of the parts in the punching and cutting assembly, and the foam in the gap between the cutters is assisted to be ejected, so as to avoid the foam sticking to the outer surface of the cutter, causing part of the foam to be brought out of the fixed mold after the cutter is taken out, resulting in damage to the finished foam product after punching, thereby enhancing the punching and cutting effect of the device on the foam.

[0016] 2. In the utility model, the convenience of the device for maintaining the cutter is improved by utilizing the mutual cooperation between the connection relationships of the parts in the auxiliary assembly, and when it is necessary to perform shaping punching on the foam, the shape of the cutter in the mounting plate can be directly replaced to complete the shaping punching of the foam, thereby enriching the device's punching processing of foams with different shaping requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional front view schematic diagram of the main body of the foam tape punching die proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the internal area of ​​the moving mold of the foam tape punching mold proposed by the utility model;

[0019] Figure 3 A schematic diagram of the bottom surface area of ​​the slide plate of the foam tape punching die proposed in the utility model;

[0020] Figure 4 This is a schematic diagram of the fixed ring area of ​​the foam tape punching die proposed in the utility model;

[0021] Figure 5 This is a schematic diagram of the bottom surface area of ​​the movable mold of the foam tape punching mold proposed by the utility model.

[0022] Legend:

[0023] 1. Fixed mold; 11. Punching groove; 2. Punching assembly; 21. Slide plate; 22. Through column; 23. Spring; 24. Cylinder; 25. Strip groove; 26. Top block; 27. Fixed ring; 28. Rubber clamp; 29. ​​Moving mold; 3. Fixed sleeve; 4. Sliding column; 41. Sliding block; 5. Auxiliary assembly; 51. Mounting groove; 52. Cutter; 53. Mounting plate; 54. Fixing bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1 - Figure 3 The utility model provides an embodiment: a foam tape punching mold, comprising a fixed mold 1 and a movable mold 29, the fixed mold 1 and the movable mold 29 play a supporting role for the device, a punching groove 11 is opened at the axis center of the upper surface of the fixed mold 1, and a foam tape is generated in the punching groove 11, and a sliding column 4 is fixedly connected to the left and right sides of the upper surface of the fixed mold 1, and a slider 41 is slidably connected to the outer arc surface of the outer wall of the sliding column 4, and the sliding column 4 cooperates with the slider 41 to improve the accuracy of the cutter 52 in the movable mold 29 when punching the foam in the punching groove 11, avoid the phenomenon of shaking when the cutter 52 punches due to excessive impact speed, and improve the accuracy of punching, two groups of sliders 41 are fixedly connected to the left and right surfaces of the movable mold 29, and a fixed sleeve 3 is fixedly connected at the axis center of the upper surface of the movable mold 29, and the peripheral impact equipment is connected through the fixed sleeve 3, so as to improve the application range of the device, and a punching component 2 is arranged inside the movable mold 29, and an auxiliary component 5 is arranged near the axis center of the lower surface of the movable mold 29.

[0026] Reference Figure 2 - Figure 4When the foam needs to be punched, the peripheral impact device is started, and when the movable mold 29 is driven downward to punch, the punching assembly 2 is started, and the punching assembly 2 includes a slide plate 21, and the lower surface of the slide plate 21 is fixedly connected with a plurality of groups of evenly distributed cylinders 24, and the lower surface of the movable mold 29 is provided with a plurality of groups of evenly distributed circular grooves, and the bottom end of the cylinder 24 is connected to the inner wall of the circular groove of the movable mold 29, and the movable mold 29 moves downward, driving the cutter 52 to move downward, so that the cutter 52 acts on the foam in the punching groove 11, and the punching of the foam is completed. The top corners of the inner wall of the movable mold 29 are fixedly connected There is a through column 22, and the inner wall aperture of the slide plate 21 is connected to the outer arc surface of the outer wall of the through column 22. Since the movable mold 29 and the fixed mold 1 are in a state of mutual contact at this time, the top block 26 is pushed into the strip groove 25, so that the slide plate 21 moves upward after being squeezed by the top block 26. The upward movement of the slide plate 21 drives the cylinder 24 to move upward, so that the cylinder 24 is retracted in the inner wall aperture of the movable mold 29. A spring 23 is sleeved on the outer arc surface of the outer wall of the through column 22. The spring 23 is squeezed by the slide plate 21 and contracts. The bottom end of the spring 23 is fixedly connected to the upper surface of the slide plate 21. The spring 23 The top of the movable mold 29 is fixedly connected to the upper surface of the inner wall of the movable mold 29, and strip grooves 25 are provided on the left and right sides of the lower surface of the movable mold 29. The upper surface of the fixed mold 1 is fixedly connected to the left and right sides of the punching groove 11. The cross-sectional area of ​​the inner wall of the strip groove 25 is adapted to the cross-sectional area of ​​the outer wall of the top block 26. The outer wall of the top block 26 is connected to the inner wall groove of the strip groove 25. When the cutter 52 moves upward and separates from the fixed mold 1 under the action of the peripheral equipment, the extrusion force of the top block 26 on the slide plate 21 disappears, and the reaction force of the spring 23 causes the slide plate 21 to move downward, so that the cylinder 24 is pushed out of the movable mold 29. In the aperture of the mold 29, the foam in the gap between the cutters 52 is assisted to be ejected. The punching assembly 2 also includes a fixed ring 27, which is fixedly connected to the inner wall of the circular groove on the lower surface of the movable mold 29. The lower surface of the fixed ring 27 is fixedly connected with a rubber clamp 28, so that the foam after punching can quickly fall off from the gap between the cutters 52, avoiding the foam sticking to the outer surface of the cutter 52, causing part of the foam to be taken out of the fixed mold 1 when the cutter 52 is taken out, resulting in damage to the finished foam product after punching, thereby improving the protection during the foam punching process and enhancing the foam punching effect of the device.

[0027] Reference Figure 1 and Figure 5, when the device has been punching and cutting the foam for a long time, when the staff needs to maintain the cutter 52, the auxiliary component 5 is started. The auxiliary component 5 includes a mounting plate 53, and the cutter 52 is fixedly connected to the front surface of the mounting plate 53. The mounting plate 53 supports the cutter 52. A plurality of evenly distributed mounting grooves 51 are provided on the lower surface of the movable mold 29. The mounting plate 53 is detachably connected to the front surface of the inner wall of the mounting groove 51 by fixing bolts 54. After the staff loosens the fixing bolts 54 by tools, the mounting plate 53 can be disassembled from the mounting groove 51, and then the cutter 52 is polished by peripheral tools, which improves the convenience of the device in maintaining the cutter 52. When it is necessary to punch and cut the foam, the shape of the cutter 52 in the mounting plate 53 can be directly replaced to complete the punching and cutting of the foam, which enriches the punching and cutting of the foam with different shape requirements.

[0028] Working principle: When the foam needs to be punched, the peripheral impact device is started, so that the movable mold 29 punches downward, the punching assembly 2 is started, the movable mold 29 moves downward, driving the cutter 52 to move downward, so that the cutter 52 acts on the foam in the punching groove 11. After the punching of the foam is completed, since the movable mold 29 and the fixed mold 1 are in a state of mutual contact, the top block 26 is pushed into the strip groove 25, so that the slide plate 21 is subjected to the extrusion force of the top block 26 and moves upward. The upward movement of the slide plate 21 drives the cylinder 24 to move upward, so that the cylinder 24 is retracted in the inner wall aperture of the movable mold 29, and the spring 23 is squeezed by the slide plate 21 and contracts. When the cutter 52 moves upward and separates from the fixed mold 1 under the action of the peripheral device, the extrusion force of the top block 26 on the slide plate 21 disappears, and the reaction force of the spring 23 causes the slide plate 21 to move downward, so that the cylinder 24 is pushed out of the aperture of the movable mold 29, and the cutter 5 2 is assisted in ejecting the foam in the gap between the cutters 52, so that the punched foam quickly falls off the gap between the cutters 52, avoiding the foam sticking to the outer surface of the cutter 52, causing part of the foam to be brought out of the fixed mold 1 when the cutter 52 is taken out, resulting in damage to the finished foam product after punching, thereby enhancing the punching effect of the device on the foam. When the device has been punching the foam for a long time, when the staff needs to maintain the cutter 52, the auxiliary component 5 is started. After the staff loosens the fixing bolt 54 with a tool, the mounting plate 53 can be disassembled from the mounting groove 51, and then the cutter 52 is polished with an external tool, thereby improving the convenience of the device when maintaining the cutter 52. When it is necessary to punch the foam for shaping, the shape of the cutter 52 in the mounting plate 53 can be directly replaced to complete the shaping punching of the foam, thereby enriching the punching processing of the device for foams with different shaping requirements.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foam tape punching die, characterized in that: The invention comprises a fixed mold (1) and a movable mold (29), wherein a punching groove (11) is provided at the axis center of the upper surface of the fixed mold (1), sliding columns (4) are fixedly connected to the left and right sides of the upper surface of the fixed mold (1), and a sliding block (41) is slidably connected to the outer arc surface of the outer wall of the sliding column (4), and a fixed sleeve (3) is fixedly connected to the axis center of the upper surface of the movable mold (29), and a punching assembly (2) is arranged inside the movable mold (29), and the punching assembly (2) comprises a slide plate (21), and the lower part of the slide plate (21) is A plurality of groups of evenly distributed cylinders (24) are fixedly connected to the surface; through columns (22) are fixedly connected to the top corners of the inner wall of the movable mold (29); a spring (23) is sleeved on the outer arc surface of the outer wall of the through column (22); strip grooves (25) are provided on the left and right sides of the lower surface of the movable mold (29); top blocks (26) are fixedly connected to the left and right sides of the upper surface of the fixed mold (1) near the punching groove (11); and an auxiliary component (5) is provided near the axis of the lower surface of the movable mold (29).

2. The foam tape punching die according to claim 1, characterized in that: The auxiliary component (5) comprises a mounting plate (53), a cutting knife (52) being fixedly connected to the front surface of the mounting plate (53), a plurality of groups of evenly distributed mounting grooves (51) being provided on the lower surface of the movable mold (29), and the mounting plate (53) being detachably connected to the front surface of the inner wall of the mounting groove (51) by means of fixing bolts (54).

3. The foam tape punching die according to claim 1, characterized in that: The inner wall aperture of the slide plate (21) penetrates and connects to the outer arc surface of the outer wall of the through column (22).

4. The foam tape punching die according to claim 1, characterized in that: The bottom end of the spring (23) is fixedly connected to the upper surface of the slide plate (21), and the top end of the spring (23) is fixedly connected to the upper surface of the inner wall of the movable mold (29).

5. The foam tape punching die according to claim 1, characterized in that: The lower surface of the movable mold (29) is provided with a plurality of groups of evenly distributed circular grooves, and the bottom end of the cylinder (24) penetrates and is connected to the inner wall of the circular groove of the movable mold (29).

6. The foam tape punching die according to claim 1, characterized in that: The punching assembly (2) further comprises a fixing ring (27), wherein the fixing ring (27) is fixedly connected to the inner wall of the circular groove on the lower surface of the movable mold (29), and a rubber clamping claw (28) is fixedly connected to the lower surface of the fixing ring (27).

7. The foam tape punching die according to claim 1, characterized in that: The two groups of sliding blocks (41) are fixedly connected to the left and right surfaces of the movable mold (29).

8. The foam tape punching die according to claim 1, characterized in that: The cross-sectional area of ​​the inner wall of the strip-shaped groove (25) matches the cross-sectional area of ​​the outer wall of the top block (26), and the outer wall of the top block (26) penetrates and is connected to the inner wall groove of the strip-shaped groove (25).

Images