Punching die

Abstract

The utility model discloses a punching die which comprises a lower die, an upper die and a material pumping assembly, the lower die comprises a first surface, the lower die comprises a first cutter point, a waste discharge hole and a suction hole, the waste discharge hole and the suction hole are communicated with each other, the waste discharge hole is formed in the first surface, and the first cutter point surrounds the waste discharge hole; the upper die and the lower die are oppositely arranged, and the upper die and the lower die can get close to each other and get away from each other; the material pumping assembly comprises a negative pressure device connected to the suction hole and a detection device arranged on the upper die or the lower die and in communication connection with the negative pressure device, and the detection device is used for detecting the distance between the upper die and the lower die and controlling the negative pressure device. And the detection device only controls the negative pressure device to work after detecting that the upper die and the lower die are close to each other. According to the punching die, the detection device is arranged, so that the negative pressure equipment only performs waste suction during punching and does not work in other states, and the problem of resource waste is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of stamping equipment, in particular to a punching die capable of collecting and discharging waste materials in real time. Background Art

[0002] In today's society, electronic products and ion products are becoming more and more intelligent and diversified, and technical requirements are constantly improving, and functionality is also increasing. In the traditional die-cutting process, especially for the case of no glue and many holes, the residual material generated by punching and cutting will be discharged in real time. In the prior art, waste discharge is mainly carried out through a negative pressure device. In normal work, the negative pressure device is always in operation, but waste is only generated during punching and cutting, which will cause a waste of resources.

[0003] Therefore, in view of the above-mentioned technical problems, it is necessary to provide an improved punching die.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The utility model aims to provide a punching and cutting device for solving the problem of resource waste during waste discharge.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] The utility model provides a punching die, comprising a lower die, an upper die and a material extraction component, the lower die comprising a first surface, the lower die comprising a first blade and a waste discharge hole and a suction hole connected to each other, the waste discharge hole is opened on the first surface, and the first blade surrounds the waste discharge hole; the upper die is arranged opposite to the lower die, and the upper die and the lower die can approach and move away from each other; the material extraction component comprises a negative pressure device connected to the suction hole, and a detection device arranged on the upper die or the lower die and communicated with the negative pressure device, the detection device is used to detect the distance between the upper die and the lower die and control the negative pressure device, and the detection device controls the negative pressure device to work only after detecting that the upper die and the lower die are close to each other.

[0008] In one or more embodiments of the present invention, the detection device is a pressure sensor disposed on the first surface.

[0009] In one or more embodiments of the present invention, the lower mold is further provided with a residual material temporary storage cavity for temporarily storing waste materials, and the waste discharge hole and the suction hole are respectively connected to the residual material temporary storage cavity.

[0010] In one or more embodiments of the present invention, two residual material temporary storage chambers are provided, and the two residual material temporary storage chambers are relatively arranged at two ends of the lower mold, and each of the residual material temporary storage chambers is respectively equipped with the waste discharge hole and the suction hole.

[0011] In one or more embodiments of the present invention, the lower mold includes side surfaces connected to both sides of the first surface, and the suction holes are opened on the side surfaces.

[0012] In one or more embodiments of the present invention, each of the side surfaces is provided with two suction holes.

[0013] In one or more embodiments of the present invention, the lower die includes a second surface arranged opposite to the first surface, the second surface is provided with an opening connected to the residual material temporary storage cavity, and the punching die also includes a bottom steel plate attached to the second surface and covering the opening.

[0014] In one or more embodiments of the present invention, sealant is filled between the bottom steel plate and the second surface.

[0015] In one or more embodiments of the present invention, the first surface is further provided with a positioning toothed cutter for positioning the material.

[0016] In one or more embodiments of the present invention, the upper die is provided with a second blade facing the first surface, and the lower die further includes a third blade protruding from the first surface, and the second blade cooperates with the third blade to cut the material.

[0017] Compared with the prior art, the punching and cutting equipment of the utility model is provided with a detection device for detecting the distance between the upper and lower dies, which is connected to and controls the on and off of the negative pressure device. The detection device controls the negative pressure device to suck waste only when it detects that the upper and lower dies are close to each other and punching and cutting is performed. The negative pressure device does not work in other states, thereby solving the problem of resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a punching device in one embodiment of the utility model;

[0020] Figure 2A cross-sectional view of a lower mold in one embodiment of the utility model;

[0021] Figure 3 It is a schematic diagram of the lower mold in one embodiment of the utility model.

[0022] Description of main reference numerals:

[0023] 100-punching die, 10-lower die, 101-first surface, 102-second surface, 11-waste discharge hole, 12-suction hole, 13-first blade, 14-residue storage cavity, 15-positioning tooth knife, 16-third blade, 17-fixing screw, 18-positioning hole, 20-upper die, 21-second blade, 22-positioning pin, 31-negative pressure device, 32-detection device, 40-bottom steel plate, 50-filling layer. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the protection scope of the present invention.

[0025] like Figure 1-3 As shown, the punching die 100 in one embodiment of the utility model comprises a lower die 10, an upper die 20 and a material extraction assembly. The lower die 10 comprises a first surface 101, which is provided with a waste discharge hole 11 and a suction hole 12 which are interconnected, and a first blade 13 surrounding the waste discharge hole 11. The upper die 20 is arranged opposite to the lower die 10, and is arranged on one side of the first surface 101, and the two can approach or move away from each other. The material extraction assembly comprises a negative pressure device 31 and a detection device 32, the negative pressure device 31 is connected to the suction hole 12, and the detection device 32 is arranged on the lower die 10 or the upper die 20, and the detection device 32 is used to detect the distance between the upper die 20 and the lower die 10 and communicate with the negative pressure device 31, and it controls the negative pressure device 31 to work only after detecting that the upper die 20 and the lower die 10 are close to and in contact (i.e., during the punching operation), so as to extract the waste formed by cutting.

[0026] The punching die 100 in the present invention is provided with a detection device 32 so that the negative pressure device 31 works only when waste is formed by punching, and does not work in other states, thereby reducing production costs and improving resource utilization.

[0027] In one embodiment, the detection device 32 is a pressure sensor disposed on the lower die 10, which protrudes from the first surface 101. When the punching die 100 performs a punching operation, the upper and lower dies are close to and in contact with each other. At this time, the upper die 20 will first touch the pressure sensor, and then the pressure sensor notifies the negative pressure device 31 to work. Preferably, the working time of the negative pressure device 31 can be set to a certain time each time, for example, when the detection device 32 triggers the negative pressure device 31 to work for a period of time (such as 1 second or 2 seconds, etc.), to prevent the situation where the suction time is too short and the waste is not completely extracted.

[0028] Preferably, a temporary storage cavity 14 is provided on the lower mold 10, and the waste discharge hole 11 and the suction hole 12 are both connected to the temporary storage cavity 14. The temporary storage cavity 14 is used to provide a temporary storage buffer function for waste materials to prevent the suction channel between the waste discharge hole and the suction hole 12 from being blocked.

[0029] In one embodiment, the punching die 100 used needs to punch the material from both sides, so a residual material temporary storage cavity 14 and a waste discharge hole 11, a suction hole 12 and a first blade 13 matching the residual material temporary storage cavity 14 are provided at both ends of the lower die 10.

[0030] Further, the suction hole 12 is opened on the side of the lower mold 10. Preferably, two suction holes 12 are opened on the side of the lower mold 10, respectively, and when one of the suction holes 12 is blocked, the other suction hole 12 can work normally to prevent the situation that the suction hole 12 is blocked and the waste cannot be discharged normally.

[0031] In one embodiment, the main body of the lower die 10 is a rectangular structure, which includes a second surface 102 opposite to the first surface 101, and a groove is opened on the second surface 102. The bottom steel plate 40 is attached to the second surface 102, and the groove is covered by the bottom steel plate 40 to form a temporary storage cavity 14 for residual materials. Through such a setting, when it is necessary to punch round holes of different sizes, the upper die 10 with the waste discharge hole 11 and the first blade 13 of the corresponding size can be replaced and attached to the bottom steel plate 40, thereby improving the flexibility of the entire punching die 100.

[0032] Preferably, a sealant is filled between the bottom steel plate 40 and the lower mold 10. After the sealant solidifies, a filling layer 50 is formed between the bottom steel plate 40 and the lower mold 10 to enhance the fixing effect and fill the gap between the two to improve air tightness and enhance the suction force generated by the negative pressure device 31 at the waste discharge hole 11 to ensure that the punching waste is sucked out. Finally, the bottom steel plate 40 is fixed to the lower mold 10 by fixing screws 17.

[0033] like Figure 1As shown, a positioning tooth knife 15 for positioning the material is also provided on the first surface 101, which is used to provide a positioning effect for the material to be punched. A plurality of positioning tooth knives 15 form an area for placing the material to be punched. Placing the material to be punched in the area can ensure that the punching is at a predetermined position to improve the yield.

[0034] In one embodiment, a second blade 21 is disposed on the upper die 20 and faces the first surface 101 . A third blade 16 is also disposed on the first surface 101 . The second blade 21 and the third blade 16 cooperate to cut the material to be punched.

[0035] In order to ensure the position of the upper mold 20 and the lower mold 10 during cutting, a positioning pin 22 protruding toward the first surface 101 is provided on the upper mold 20, and a positioning hole 18 cooperating with the positioning pin 22 is correspondingly formed on the first surface 101. When the upper mold 20 moves toward the lower mold 10, the positioning pin 22 is inserted into the corresponding positioning hole 18 to ensure the position of the blade during stamping, thereby improving the punching yield.

[0036] The punching die 100 in this embodiment uses a high-speed motor as the negative pressure device 31 to increase suction force, which can effectively remove the punching waste. By using the improved punching die 100, the waste removal rate is increased from the original 350pcs / H to 750pcs / H, and the production efficiency is increased by 214%.

[0037] At the same time, the surface of the bottom steel plate 40 is polished to maximize the surface flatness, ensuring that the normal punching process will not cause material punching to be over-cut or uncut due to uneven molds, and the defective rate is reduced by 5%.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A punching die, characterized in that: include: A lower mold, comprising a first surface, the lower mold comprising a first blade and a waste discharge hole and a suction hole connected to each other, the waste discharge hole is opened on the first surface, and the first blade surrounds the waste discharge hole; An upper die is arranged opposite to the lower die, and the upper die and the lower die can move closer to and farther from each other; The material extraction component includes a negative pressure device connected to the suction hole, and a detection device arranged at the upper mold or the lower mold and communicated with the negative pressure device, wherein the detection device is used to detect the distance between the upper mold and the lower mold and control the negative pressure device, and the detection device controls the negative pressure device to operate only after detecting that the upper mold and the lower mold are close to each other.

2. The punching die according to claim 1, characterized in that: The detection device is a pressure sensor arranged on the first surface.

3. The punching die according to claim 1, characterized in that: The lower die is also provided with a residual material temporary storage cavity for temporarily storing waste materials, and the waste discharge hole and the suction hole are respectively connected to the residual material temporary storage cavity.

4. The punching die according to claim 3, characterized in that: There are two residual material temporary storage cavities, which are arranged at two ends of the lower mold relatively to each other, and each residual material temporary storage cavity is respectively equipped with the waste discharge hole and the suction hole.

5. The punching die according to claim 4, characterized in that: The lower mold includes side surfaces connected to both sides of the first surface, and the suction holes are opened on the side surfaces.

6. The punching die according to claim 5, characterized in that: Each of the side surfaces is provided with two suction holes.

7. The punching die according to claim 3, characterized in that: The lower die includes a second surface arranged opposite to the first surface, the second surface is provided with an opening communicating with the residual material temporary storage cavity, and the punching die also includes a bottom steel plate attached to the second surface and covering the opening.

8. The punching die according to claim 7, characterized in that: The space between the bottom steel plate and the second surface is filled with sealant.

9. The punching die according to claim 1, characterized in that: The first surface is also provided with a positioning toothed cutter for positioning the material.

10. The punching die according to claim 1, characterized in that: The upper die is provided with a second blade facing the first surface, and the lower die further includes a third blade protruding from the first surface. The second blade cooperates with the third blade to cut the material.

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