Novel sound film auxiliary cutting die

Abstract

The utility model provides a novel sound film auxiliary cutting die, contains the material punching upper die, the compression tight cover, the material loading lower die, the material punching upper die contains the first disc portion, the material punching column of connecting in the first disc portion bottom, the compression tight cover contains the second disc portion, the material pressing portion of connecting in the second disc portion bottom, the second disc portion, the material pressing portion between the through setting of guide hole, the material punching column is set in the guide hole, a plurality of buffer springs are distributed between the first disc portion and the second disc portion, the top of material loading lower die is provided with the material punching hole, the bottom of material loading lower die is provided with the material discharge hole of communication with the material punching hole, the first disc portion is provided with the countersunk hole of corresponding setting with buffer spring, the second disc portion is provided with the through hole of corresponding setting with countersunk hole, and the countersunk hole is connected with the guide bolt between the through hole, the bottom of guide bolt is connected with the limiting nut, and the buffer spring is sleeved on the guide bolt, can press the material when cutting, ensure that the cutting size is stable, improve the processing accuracy.

Description

Technical Field

[0001] This utility model relates to the field of diaphragm mold technology, and in particular to a novel diaphragm auxiliary cutting mold. Background Technology

[0002] The voice coil is the coil through which an electric current flows in a loudspeaker. It is a crucial component of the mechanical wave system in an electrodynamic loudspeaker, and can be considered the heart of the loudspeaker. The diaphragm is a vital component of the voice coil, as shown in the attached diagram. Figure 3 The diaphragm semi-finished product 7 shown requires the diaphragm 71 to be cut off during the production process, and the edge material 70 around the diaphragm 71 to be cut off. The existing diaphragm cutting mold lacks the function of clamping the edge material 70, and the diaphragm moves during cutting, resulting in large differences in the size of the cut diaphragm and low processing accuracy. Summary of the Invention

[0003] The problem to be solved by this utility model is to provide a new type of diaphragm-assisted cutting mold that can press the material tightly during cutting, ensuring stable cutting dimensions and improving processing accuracy.

[0004] To solve the above technical problems, a novel diaphragm-assisted cutting mold provided by this utility model is proposed, comprising a punching upper mold, a clamping sleeve, and a loading lower mold. The punching upper mold includes a first disc portion and a punching column connected to the bottom of the first disc portion. The clamping sleeve includes a second disc portion and a pressing portion connected to the bottom of the second disc portion. A guide hole with clearance matching to the punching column is provided through the second disc portion and the pressing portion. The punching column is movably disposed in the guide hole. Several buffer springs are distributed between the first disc portion and the second disc portion. The top of the loading lower mold is provided with a punching hole with clearance matching to the punching column. The bottom of the loading lower mold is provided with a discharge hole communicating with the punching hole. The first disc portion is provided with a countersunk hole corresponding to the buffer spring. The second disc portion is provided with a through hole corresponding to the countersunk hole. A guide bolt is connected between the countersunk hole and the through hole. A limit nut is connected to the bottom end of the guide bolt. The buffer spring is sleeved on the guide bolt.

[0005] Preferably, a vent hole is provided through the center of the upper die for punching.

[0006] The beneficial effects of this utility model are as follows: This utility model provides a novel diaphragm auxiliary cutting mold, in which the upper punching mold and the lower loading mold are respectively installed on the punch rod and base of the press. The punching column is opposite to the punching hole, and the punching hole matches the shape and size of the diaphragm. The diaphragm semi-finished product is placed on the lower loading mold so that the diaphragm is aligned with the punching hole. The press drives the upper punching mold to move downward. When the bottom of the pressing part contacts the edge material of the diaphragm semi-finished product, the buffer spring will be compressed. The pressing part presses the edge material of the diaphragm semi-finished product tightly. During the compression of the buffer spring, the punching column moves downward along the guide hole and punches the diaphragm from the diaphragm semi-finished product into the punching hole. The edge material remains on the top of the lower loading mold. The diaphragm will be discharged through the discharge hole, avoiding the diaphragm semi-finished product from shifting during cutting, ensuring stable cutting dimensions, and improving processing accuracy. Attached Figure Description

[0007] Figure 1 A schematic diagram illustrating the external structure of this utility model in the mold-open state is shown.

[0008] Figure 2 A cross-sectional view of the present invention in the mold-closed state is shown as an example.

[0009] Figure 3 A schematic diagram illustrating the external structure of the semi-finished diaphragm of this utility model is provided.

[0010] The reference numerals in the attached drawings are as follows: 1. Upper punching die, 10. First disc part, 11. Punching post, 100. Countersunk hole, 101. Pressing sleeve, 2. Second disc part, 20. Through hole, 200. Pressing part, 21. Guide hole, 22. Lower loading die, 3. Punching hole, 30. Discharge hole, 31. Buffer spring, 4. Guide bolt, 5. Limit nut, 6. Diaphragm semi-finished product, 7. Edge material, 70. Diaphragm, 71. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure.

[0012] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0013] refer to Figures 1-3 .

[0014] This utility model provides a novel diaphragm-assisted cutting mold, comprising a punching upper mold 1, a clamping sleeve 2, and a loading lower mold 3. The punching upper mold 1 includes a first disc portion 10 and a punching column 11 connected to the bottom of the first disc portion 10. The clamping sleeve 2 includes a second disc portion 20 and a pressing portion 21 connected to the bottom of the second disc portion 20. A guide hole 22 is provided through the second disc portion 20 and the pressing portion 21, which is clearance-fitted with the punching column 11. The punching column 11 is movably disposed in the guide hole 22. Several buffer springs 4 are distributed in the middle. The top of the material-carrying lower die 3 is provided with a punching hole 30 that is clearance-fitted with the punching column 11. The bottom of the material-carrying lower die 3 is provided with a discharge hole 31 that communicates with the punching hole 30. The first disc part 10 is provided with a countersunk hole 100 corresponding to the buffer spring 4. The second disc part 20 is provided with a through hole 200 corresponding to the countersunk hole 100. A guide bolt 5 is connected between the countersunk hole 100 and the through hole 200. The bottom end of the guide bolt 5 is connected with a limit nut 6. The buffer spring 4 is sleeved on the guide bolt 5.

[0015] The specific operating principle is as follows: the upper punching die 1 and the lower loading die 3 can be installed on the punch rod and base of the press, respectively. The punching column 11 will be opposite to the punching hole 30. The diaphragm semi-finished product 7 is placed on the lower loading die 3 so that the diaphragm 71 is aligned with the punching hole 30. The press drives the upper punching die 1 to move downward. When the bottom of the pressing part 21 contacts the edge material 70 of the diaphragm semi-finished product 7, the buffer spring 4 will be compressed. The pressing part 21 presses the edge material 70 of the diaphragm semi-finished product 7 tightly. During the compression of the buffer spring 4, the punching column 11 moves downward along the guide hole 22 and punches the diaphragm 71 from the diaphragm semi-finished product 7 into the punching hole 30. The edge material 70 remains on the top of the lower loading die 3. The diaphragm 71 will be discharged through the discharge hole 31 to avoid the diaphragm semi-finished product 7 from shifting during cutting, ensuring stable cutting dimensions and improving processing accuracy.

[0016] Based on the above embodiment, a vent hole 101 is provided through the center of the upper die 1. One end of the air pipe is connected to the top of the vent hole 101, and the other end of the air pipe is connected to the output end of the air pump. When the punching column 11 punches the diaphragm 71 into the punching hole 30, air is supplied to the vent hole 101 through the air pump. The diaphragm 71 falling into the punching hole 30 will be blown into the discharge hole 31, ensuring smooth unloading and avoiding jamming.

[0017] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A novel diaphragm-assisted cutting mold, characterized in that, The device includes a punching upper die, a clamping sleeve, and a loading lower die. The punching upper die includes a first disc portion and a punching column connected to the bottom of the first disc portion. The clamping sleeve includes a second disc portion and a pressing portion connected to the bottom of the second disc portion. A guide hole is provided through the second disc portion and the pressing portion, which is clearance-fitted with the punching column. The punching column is movably disposed in the guide hole. A plurality of buffer springs are distributed between the first disc portion and the second disc portion. The top of the loading lower die is provided with a punching hole that is clearance-fitted with the punching column. The bottom of the loading lower die is provided with a discharge hole that communicates with the punching hole. The first disc portion is provided with a countersunk hole corresponding to the buffer spring. The second disc portion is provided with a through hole corresponding to the countersunk hole. A guide bolt is connected between the countersunk hole and the through hole. A limit nut is connected to the bottom end of the guide bolt. The buffer spring is sleeved on the guide bolt.

2. The novel diaphragm-assisted cutting mold according to claim 1, characterized in that, A vent hole is provided through the center of the upper die for punching.

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