A 3M foam tape forming mold

Abstract

This utility model discloses a 3M foam tape forming mold, relating to the field of foam tape. The 3M foam tape forming mold includes a lower mold and an upper mold. Two sets of clamping units are installed on the lower mold, and two sets of upper extrusion seats are installed at the bottom of the upper mold. When the upper mold moves, it drives the upper extrusion seats to move, and the upper extrusion seats move downwards. The upper extrusion seats press the 3M foam tape onto the lower extrusion seats. The inclined surface of the upper extrusion seats pushes the lower extrusion seats to move until the inclined surfaces of the upper extrusion seats and the clamping units coincide. Under the action of the two upper extrusion seats and the two sets of clamping units, the two sides of the 3M foam tape are clamped. Because the upper and lower extrusion seats hold the 3M foam tape stably, it prevents the 3M foam tape from shifting during punching, thus avoiding damage to the finished 3M foam tape and improving the product yield.

Description

Technical Field

[0001] This utility model relates to the field of foam tape technology, specifically a 3M foam tape forming mold. Background Technology

[0002] Foam tape is widely used in the bonding of precision components in the automotive, electronics, and construction industries due to its excellent sealing, shock absorption, and high bonding strength.

[0003] In the production of 3M foam tape, high-precision punching and forming are required to meet the process requirements of irregular bonding or positioning holes. Currently, the industry generally uses traditional punching dies. During punching, the upper die moves to the lower die. After the punching head installed on the upper die is completed, it is easy to pick up the tape material when the punching head returns, causing tearing of the hole or deformation of the edge, which can damage the finished 3M foam tape and increase the scrap rate. Therefore, we propose a 3M foam tape forming die. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a 3M foam tape forming mold, which solves the problem that during punching, when the upper mold moves to the lower mold, the punching head installed on the upper mold easily picks up the tape material during its return stroke after punching, causing tearing of the holes or deformation of the edges, resulting in damage to the finished 3M foam tape.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a 3M foam tape forming mold, comprising a lower mold and an upper mold, wherein a punching seat is installed in the lower mold and an installation groove is provided in the upper mold;

[0006] The lower mold is equipped with two sets of clamping units, and the bottom of the upper mold is equipped with two sets of upper extrusion seats.

[0007] The clamping unit includes a lower extrusion seat, a fixed seat, and a sliding rod. The fixed seat is fixedly mounted on the lower mold. One end of the sliding rod is fixedly connected to the lower extrusion seat. The sliding rod is slidably connected to the fixed seat. The lower extrusion seat is arranged corresponding to the upper extrusion seat. The upper extrusion seat and the lower extrusion seat cooperate to clamp and fix the 3M foam tape.

[0008] Preferably, the lower mold is provided with guide rods at all four corners, and the upper mold is slidably connected to the outer peripheral wall of the guide rods.

[0009] Preferably, the upper and lower extrusion seats have the same inclination.

[0010] Preferably, an adjusting rod is slidably connected to the inner wall of the fixed seat, and a fitting seat is fixedly connected to the side of the adjusting rod near the lower pressing seat.

[0011] Preferably, a reset component is provided between the fitting seat and the lower pressing seat.

[0012] Preferably, a tightening seat is fixedly connected to one side of the fixed seat, the adjusting rod is slidably connected in the tightening seat, and a fixing bolt is provided in the fitting seat.

[0013] Preferably, a material collection seat is installed below the lower mold, and the material collection seat has a discharge ramp inside for collecting punching waste.

[0014] Preferably, the clamping surfaces of both the lower and upper extrusion seats are covered with soft protective pads.

[0015] Its beneficial effects are as follows:

[0016] When the upper mold of this 3M foam tape forming mold moves, it drives the upper extrusion seat at its bottom to move accordingly. At this time, the upper extrusion seat moves to the lower extrusion seat, and the 3M foam tape is squeezed onto the lower extrusion seat by the upper extrusion seat. The inclined surface of the upper extrusion seat pushes the lower extrusion seat to move until the inclined surfaces of the upper extrusion seat and the clamping unit coincide. Under the action of the two upper extrusion seats and the two sets of clamping units, the two sides of the 3M foam tape are clamped. Since the upper extrusion seat and the lower extrusion seat hold the 3M foam tape stably, it avoids the 3M foam tape from moving during punching, which would cause damage to the finished 3M foam tape and improve the product yield. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the present invention;

[0020] Figure 3 This is a schematic diagram of the clamping unit structure of this utility model.

[0021] In the diagram: 1. Lower die; 11. Punching seat; 2. Upper die; 21. Mounting slot; 3. Material collection seat; 31. Material discharge ramp; 4. Guide rod; 5. Upper extrusion seat; 6. Clamping unit; 61. Lower extrusion seat; 62. Fixed seat; 63. Sliding rod; 64. Fitting seat; 65. Adjusting rod; 66. Damper; 67. Tightening seat. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] This utility model discloses a 3M foam tape forming mold, according to the attached... Figures 1 to 3 As shown, it includes a lower mold 1 and an upper mold 2. A punching seat 11 is installed in the lower mold 1, and an installation groove 21 is provided in the upper mold 2.

[0025] Two sets of clamping units 6 are installed on the lower mold 1, and two sets of upper extrusion seats 5 are installed at the bottom of the upper mold 2;

[0026] The clamping unit 6 includes a lower extrusion seat 61, a fixed seat 62, and a sliding rod 63. The fixed seat 62 is fixedly mounted on the lower mold 1. One end of the sliding rod 63 is fixedly connected to the lower extrusion seat 61 and slidably connected to the fixed seat 62. The lower extrusion seat 61 is set corresponding to the upper extrusion seat 5. The upper extrusion seat 5 and the lower extrusion seat 61 cooperate to clamp and fix the 3M foam tape.

[0027] The 3M foam tape is conveyed through the winding and unwinding mechanisms. The 3M foam tape passes between the lower mold 1 and the upper mold 2. When the upper mold 2 moves to the lower mold 1, the upper extrusion seat 5 and the lower extrusion seat 61 come into contact. At this time, the upper extrusion seat 5 and the lower extrusion seat 61 squeeze and clamp the 3M foam tape to ensure the stability of the 3M foam tape in the upper mold 2 and the lower mold 1. Then, the punching seat 11 is used to punch and form holes in the 3M foam tape.

[0028] After punching, the upper extrusion seat 5 and the lower extrusion seat 61 hold the 3M foam tape stably, preventing the 3M foam tape from moving during punching, which would damage the finished 3M foam tape and improve the product yield.

[0029] Guide rods 4 are provided at the four corners of the lower mold 1, and the upper mold 2 is slidably connected to the outer peripheral wall of the guide rods 4.

[0030] Under the action of the guide rod 4, the stability of the upper mold 2 moving downward to the lower mold 1 is effectively guaranteed, which facilitates the clamping of 3M foam adhesive and facilitates subsequent punching and forming.

[0031] According to the appendix Figure 3 As shown, the upper extrusion seat 5 and the lower extrusion seat 61 have the same inclination.

[0032] By setting the upper extrusion seat 5 and the lower extrusion seat 61 to have the same inclination, it is convenient for the upper extrusion seat 5 and the lower extrusion seat 61 to stably clamp and fix the 3M foam tape.

[0033] An adjusting rod 65 is slidably connected to the inner wall of the fixed base 62. A fitting base 64 is fixedly connected to the side of the adjusting rod 65 near the lower extrusion base 61. A reset component is provided between the fitting base 64 and the lower extrusion base 61.

[0034] In this application, the reset component is a spring, and the two ends of the spring are fixedly connected to the lower pressing seat 61 and the fitting seat 64 respectively. A damper 66 is installed between the lower pressing seat 61 and the fitting seat 64. With the cooperation of the damper 66, the spring ensures the stability of the movement of the lower pressing seat 61.

[0035] The springs are light or medium load cylindrical helical compression springs made of piano wire or stainless steel, with a galvanized surface for rust prevention.

[0036] Spring setting: Spring stiffness (k): 8 N / mm (±10%);

[0037] Outer diameter (OD): 18mm;

[0038] Free length (L0): 30mm;

[0039] Maximum working load (F2): 100N (at 12.5mm compression);

[0040] Preload (F1): Approximately 20N (at a compression of 2.5mm);

[0041] Working stroke: 10mm.

[0042] When the upper mold 2 moves, it drives the upper extrusion seat 5 at its bottom to move accordingly. At this time, the upper extrusion seat 5 moves to the lower extrusion seat 61, and the 3M foam tape is extruded onto the lower extrusion seat 61 through the upper extrusion seat 5. The lower extrusion seat 61 is pushed to move by the inclined surface of the upper extrusion seat 5 until the inclined surfaces of the upper extrusion seat 5 and the clamping unit 6 coincide. Under the action of the two upper extrusion seats 5 and the two sets of clamping units 6, the two sides of the 3M foam tape are clamped.

[0043] When the lower extrusion seat 61 moves, it causes the sliding rod 63 to move along with it until the lower extrusion seat 61 contacts the bonding seat 64. At this point, the lower extrusion seat 61 can no longer move. The upper extrusion seat 5 continues to move downward, which will tightly press the 3M foam tape onto the lower extrusion seat 61 through the upper extrusion seat 5, thus completing the fixation of the 3M foam tape.

[0044] A tightening seat 67 is fixedly connected to one side of the fixed seat 62, and the adjusting rod 65 is slidably connected in the tightening seat 67. A fixing bolt is provided in the fitting seat 64.

[0045] The fixing bolt controls the fixing and loosening of the adjusting rod 65 and the tightening seat 67, which is used to adjust the position of the fitting seat 64, thereby limiting the distance of the lower pressing seat 61.

[0046] A material collection seat 3 is installed below the lower mold 1. The material collection seat 3 has a material discharge ramp 31 inside for collecting punching waste. The waste falls onto the material discharge ramp 31, making it easy to collect the waste.

[0047] The clamping surfaces of both the lower extrusion seat 61 and the upper extrusion seat 5 are covered with soft protective pads.

[0048] The soft protective pad prevents the upper extrusion seat 5 and lower extrusion seat 61 from squeezing and damaging the 3M foam tape.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A 3M foam tape forming mold, characterized in that, It includes a lower mold (1) and an upper mold (2), wherein a punching seat (11) is installed in the lower mold (1) and an installation groove (21) is provided in the upper mold (2); Two sets of clamping units (6) are installed on the lower mold (1), and two sets of upper extrusion seats (5) are installed at the bottom of the upper mold (2). The clamping unit (6) includes a lower extrusion seat (61), a fixed seat (62), and a sliding rod (63). The fixed seat (62) is fixedly mounted on the lower mold (1). One end of the sliding rod (63) is fixedly connected to the lower extrusion seat (61). The sliding rod (63) is slidably connected to the fixed seat (62). The lower extrusion seat (61) is set corresponding to the upper extrusion seat (5). The upper extrusion seat (5) and the lower extrusion seat (61) cooperate to clamp and fix the 3M foam tape.

2. The 3M foam tape forming mold according to claim 1, characterized in that, The lower mold (1) is provided with guide rods (4) at each of its four corners, and the upper mold (2) is slidably connected to the outer peripheral wall of the guide rods (4).

3. The 3M foam tape forming mold according to claim 1, characterized in that, The upper extrusion seat (5) and the lower extrusion seat (61) have the same inclination.

4. The 3M foam tape forming mold according to claim 1, characterized in that, An adjusting rod (65) is slidably connected to the inner wall of the fixed seat (62), and a fitting seat (64) is fixedly connected to the side of the adjusting rod (65) near the lower pressing seat (61).

5. A 3M foam tape forming mold according to claim 4, characterized in that, A reset assembly is provided between the fitting seat (64) and the lower pressing seat (61).

6. The 3M foam tape forming mold according to claim 4, characterized in that, A tightening seat (67) is fixedly connected to one side of the fixed seat (62), the adjusting rod (65) is slidably connected in the tightening seat (67), and a fixing bolt is provided in the fitting seat (64).

7. A 3M foam tape forming mold according to claim 1, characterized in that, A material collection seat (3) is installed below the lower mold (1), and a material collection seat (3) has a material discharge ramp (31) inside for collecting punching waste.

8. A 3M foam tape forming mold according to claim 1, characterized in that, The clamping surfaces of the lower extrusion seat (61) and the upper extrusion seat (5) are both covered with soft protective pads.

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