Silencing film cutting tool die

Abstract

The utility model discloses a silencing film cutting tool die which comprises a cutting knife die and a fixing frame, the cutting knife die is annular, and the fixing frame is fixedly connected to the top of the inner wall of the cutting knife die and used for supporting and fixing the cutting knife die. A jacking plate is arranged below the fixed frame, and a plurality of elastic assemblies are arranged between the jacking plate and the fixed frame. The tool die can be automatically ejected out after cutting is completed, manual taking-out is not needed, the tidiness of sound attenuation film material stacking is prevented from being damaged, and meanwhile the production work efficiency of sound attenuation film cutting can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production and processing technology field of sound-absorbing membrane, especially relates to a sound-absorbing membrane cutting tooling mould. BACKGROUND

[0002] Sound-absorbing membrane, also known as sound insulation membrane, is a material with excellent sound insulation performance. It is usually composed of PE film layer and non-woven fabric layer, which can absorb, reflect and insulate sound, thereby significantly reducing the propagation of noise. It is widely used in automotive interior, such as door, window and seat, etc. It can significantly reduce the propagation of noise and improve the comfort of the car environment. After the production of sound-absorbing membrane is completed, in order to facilitate installation and meet certain special needs, it needs to be cut into the required shape by using cutting tooling mould.

[0003] The existing sound-absorbing membrane cutting tooling mould is usually placed on the sound-absorbing membrane stacked together, then the sound-absorbing membrane and tooling mould are pushed into the stamping equipment as a whole, and then the stamping equipment is used to apply pressure to the tooling mould, so as to cut the sound-absorbing membrane into the required shape. However, after the cutting operation is completed, one of the significant challenges is the removal process of the tooling mould. Because there may be a certain degree of adhesion or friction between the mould and the cut sound-absorbing membrane, the mould is easy to carry part of the cut sound-absorbing membrane when it is separated, which not only destroys the neatness of the sound-absorbing membrane material stack, but also directly affects the continuity and stability of production efficiency.

[0004] Therefore, it is necessary to develop a sound-absorbing membrane cutting tooling mould for the above-mentioned defects. INVENTION CONTENTS

[0005] The utility model aims at providing a sound-absorbing membrane cutting tooling mould, which can automatically eject the tooling mould after cutting, without manual removal, avoiding the destruction of the neatness of the sound-absorbing membrane material stack, and improving the production efficiency of sound-absorbing membrane cutting.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model relates to a sound-absorbing membrane cutting tooling mould, which comprises a cutting knife mould and a fixed frame, the cutting knife mould is annular, the fixed frame is fixedly connected on the inner wall top of the cutting knife mould and is used for supporting and fixing the cutting knife mould, a jacking plate is arranged below the fixed frame, and a plurality of elastic components are arranged between the jacking plate and the fixed frame.

[0008] Further, the elastic assembly comprises a sliding cylinder, a compression spring, a baffle, a connecting rod and a connecting plate; the sliding cylinder is fixedly connected with the fixed frame through a mounting plate, one end of the compression spring is fixedly connected to an inner top wall of the sliding cylinder, the other end of the compression spring is fixedly connected with the baffle, the baffle is slidably connected with an inner wall of the sliding cylinder, one end of the connecting rod is fixedly connected to a surface of the baffle away from the one end of the compression spring, a sliding hole is formed in a bottom surface of the sliding cylinder, the other end of the connecting rod penetrates through the sliding hole, and the connecting plate is fixedly connected to one end of the connecting rod located outside the sliding cylinder; and the connecting plate is fixedly connected with the jacking plate.

[0009] Further, two symmetrical strip-shaped holes are vertically formed in the sliding cylinder, and two symmetrical sliding columns fixedly connected with the strip-shaped holes are fixedly connected to a side wall of the baffle and slidably connected in the strip-shaped holes.

[0010] Further, the top surface of the fixed frame is in the same horizontal plane as the top surface of the cutting die.

[0011] Further, in the initial state, the distance between the bottom surface of the jacking plate and the top surface of the fixed frame is not less than the height of the cutting die.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0013] The annular cutting die can cut the sound-absorbing film into a required shape, the fixed frame can support and fix the cutting die, the elastic assembly can make the fixed frame quickly reset after cutting, so as to drive the cutter to separate from the sound-absorbing film, and in this process, the jacking plate always presses the cut sound-absorbing film under the overall gravity and the reaction force of the elastic assembly, thereby avoiding that the cut sound-absorbing film is lifted in the process that the cutter separates from the sound-absorbing film. The whole process does not need manual operation, meanwhile, the sound-absorbing film stacked together is avoided from being disturbed, and the production work efficiency of the sound-absorbing film cutting is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further described in connection with the drawings.

[0015] Figure 1 It is the utility model sound-absorbing film cutting tooling module three-dimensional structure schematic diagram;

[0016] Figure 2 It is the utility model elastic assembly's three-dimensional structure schematic diagram;

[0017] Figure 3 It is the utility model elastic assembly's sectional view.

[0018] Explanation of reference signs: 1, cutting die; 2, fixed frame; 3, jacking plate; 4, elastic assembly; 401, sliding cylinder; 402, compression spring; 403, baffle; 404, connecting rod; 405, connecting plate; 406, strip-shaped hole; 407, sliding column; 408, mounting plate. DETAILED DESCRIPTION

[0019] The core of the utility model provides a sound-absorbing film cutting tooling mould, can automatically eject tooling mould after cutting, does not need manual removal, avoids destroying the neatness of sound-absorbing film material stacking, and simultaneously can improve the production work efficiency of sound-absorbing film cutting.

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0021] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0022] In a specific embodiment, as shown in Figure 1 The cutting die 1 is annular, and the fixed frame 2 is fixedly connected to the inner wall top of the cutting die 1 and is used for supporting and fixing the cutting die 1.

[0023] The annular cutting die 1 can cut the sound-absorbing film into a required shape, the fixed frame 2 can support and fix the cutting die 1, and the elastic assembly 4 can make the fixed frame 2 quickly reset after cutting is completed, so as to drive the cutting die 1 to separate from the sound-absorbing film. In this process, the jacking plate 3 is always pressed against the cut sound-absorbing film under the overall gravity and the reaction force of the elastic assembly 4, so as to avoid lifting the cut sound-absorbing film during the process of separating the cutting die 1 from the sound-absorbing film. The whole process does not need manual operation, and meanwhile, the sound-absorbing film stacked together is avoided, and the production work efficiency of sound-absorbing film cutting is improved.

[0024] In a specific embodiment, as shown in Figure 2 andFigure 3 As shown, the elastic assembly 4 comprises a sliding cylinder 401, a compression spring 402, a baffle 403, a connecting rod 404 and a connecting plate 405; the sliding cylinder 401 is fixedly connected with the fixed frame 2 through a mounting plate 408, one end of the compression spring 402 is fixedly connected to the inner top wall of the sliding cylinder 401; the other end of the compression spring 402 is fixedly connected with the baffle 403, the baffle 403 is slidingly connected with the inner wall of the sliding cylinder 401; one end of the connecting rod 404 is fixedly connected to the surface of the baffle 403 away from the other end of the compression spring 402, a sliding hole is formed in the bottom surface of the sliding cylinder 401, the other end of the connecting rod 404 penetrates through the sliding hole, and the connecting plate 405 is fixedly connected to the end of the connecting rod 404 outside the sliding cylinder 401; the connecting plate 405 is fixedly connected with the jacking plate 3.

[0025] The sliding cylinder 401, the compression spring 402, the baffle 403, the connecting rod 404 and the connecting plate 405 form a complete elastic system. When it is necessary to cut the sound-absorbing film, the stamping equipment presses down the fixed frame 2, the fixed frame 2 drives the cutting die 1 to move downward to cut the sound-absorbing film below, in this process, the compression spring 402 is compressed to have restoring force. After the cutting is completed, when the stamping equipment does not apply pressure to the fixed frame 2, the fixed frame 2 is quickly reset under the action of the restoring force of the compression spring 402, thereby driving the cutting die 1 to separate from the sound-absorbing film, in this process, the jacking plate 3 is always pressed against the cut sound-absorbing film under the overall gravity and the reaction force of the compression spring 402.

[0026] Specifically, two symmetrical strip-shaped holes 406 are vertically and penetratingly formed in the sliding cylinder 401, and two symmetrical slide columns 407 are fixedly connected to the side wall of the baffle 403 and are adapted to the strip-shaped holes 406, and the slide columns 407 are slidingly connected in the strip-shaped holes 406.

[0027] The slide columns 407 on the baffle 403 are slidingly connected in the strip-shaped holes 406 of the sliding cylinder 401, which can avoid the baffle 403 from being more stable when sliding in the sliding cylinder 401, and is not easy to deviate, tilt or rotate, thereby further improving the cutting precision and quality.

[0028] In a specific embodiment, the top surface of the fixed frame 2 and the top surface of the cutting die 1 are on the same horizontal plane. When the stamping equipment is pressed down, the cutting die 1 and the fixed frame 2 can be uniformly stressed.

[0029] Specifically, in the initial state, the distance between the bottom surface of the jacking plate 3 and the top surface of the fixed frame 2 is not less than the height of the cutting die 1. During the cutting process, the jacking plate 3 has enough space to move up and down, so that the cutting die 1 can completely separate from the cut sound-absorbing film after the cutting is completed.

[0030] The utility model discloses working principle: the utility model discloses the sound-absorbing membrane cutting tooling mould actual use, first, cutting knife mould 1 and fixed frame 2 are placed in the top proper position of multilayer stacked sound-absorbing membrane, at this moment, the jacking plate 3 is contacted with the sound-absorbing membrane of the top surface, then the sound-absorbing membrane and tooling mould are placed below the stamping equipment, and the stamping equipment is controlled to cut the fixed frame 2 simultaneously to cutting knife mould 1 and the pressure is added, and cutting knife mould 1 and the fixed frame 2 are moved down, and the sound-absorbing membrane below is cut, in this process, compression spring 402 can be compressed, thereby possessing restoring force. After cutting is completed, when the stamping equipment does not add the pressure to the fixed frame 2, under the restoring force of compression spring 402, the fixed frame 2 resets rapidly, thereby driving cutting knife mould 1 to separate from the sound-absorbing membrane, in this process, the jacking plate 3 is always pressed tightly the sound-absorbing membrane that cuts in the overall gravity of cutting knife mould 1 and the fixed frame 2 and the reaction force of compression spring 402. Avoid cutting knife to separate from the sound-absorbing membrane in the process, and bring the sound-absorbing membrane that cuts. The whole process does not need manual operation, and simultaneously avoids the sound-absorbing membrane that is stacked together, improves sound-absorbing membrane cutting production work efficiency.

[0031] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiment, since it corresponds to the method disclosed by the embodiment, the description is relatively simple, and the related parts can be referred to the method part.

[0032] The above-described embodiments only describe the preferred mode of the utility model, and do not limit the scope of the utility model, and various deformations and improvements of the technical scheme of the utility model made by those skilled in the art without departing from the design spirit of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A sound attenuating membrane cutting tooling die characterized by: The utility model provides cutting die (1) and fixed frame (2) including, cutting die (1) is annular, fixed frame (2) is fixedly connected on the inner wall top of cutting die (1) and is used for supporting fixed cutting die (1), top lifting plate (3) is arranged below fixed frame (2), and a plurality of elastic components (4) are arranged between top lifting plate (3) and fixed frame (2).

2. The sound-reducing membrane slitting tooling die of claim 1, wherein: The elastic component (4) includes slide cylinder (401), compression spring (402), baffle (403), connecting rod (404) and connecting plate (405), the slide cylinder (401) is fixedly connected with the fixed frame (2) through the mounting plate (408), one end of the compression spring (402) is fixedly connected on the inner top wall of the slide cylinder (401), the other end of the compression spring (402) is fixedly connected with the baffle (403), the baffle (403) is slidably connected with the inner wall of the slide cylinder (401), one end of the connecting rod (404) is fixedly connected on the surface of the baffle (403) away from the other end of the compression spring (402), the bottom surface of the slide cylinder (401) is provided with a sliding hole, the other end of the connecting rod (404) penetrates through the sliding hole, and the connecting plate (405) is fixedly connected with the other end of the connecting rod (404) located outside the slide cylinder (401), and the connecting plate (405) is fixedly connected with the top lifting plate (3).

3. The sound-reducing membrane slitting tooling die of claim 2, wherein: Two symmetrical strip holes (406) are vertically and penetratingly arranged on the slide cylinder (401), two symmetrical slide columns (407) are fixedly connected on the side wall of the baffle (403) and are matched with the strip holes (406), and the slide columns (407) are slidably connected in the strip holes (406).

4. The sound-reducing membrane slitting tooling die of claim 1, wherein: The top surface of the fixed frame (2) is on the same horizontal plane with the top surface of the cutting die (1).

5. The sound-reducing membrane slitting tooling die of claim 4, wherein: In the initial state, the distance between the bottom surface of the top lifting plate (3) and the top surface of the fixed frame (2) is not less than the height of the cutting die (1). In the initial state, the distance between the bottom surface of the top lifting plate (3) and the top surface of the fixed frame (2) is not less than the height of the cutting die (1).

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