Anti-blocking structure of punching die

Abstract

The utility model discloses a punching die anti-blocking structure which comprises a stripping inlet block and a lower die cutter body, a plurality of punches are arranged on the stripping inlet block in a penetrating mode, a plurality of cutter edge straight body sections corresponding to the punches are arranged on the lower die cutter body, and communicated cutter edge inclined body sections are arranged below the cutter edge straight body sections. Air can flow into the position between the punch and waste through the knife edge inclined body sections, blanking holes communicated with the knife edge inclined body sections are formed in the knife edge inclined body sections, a plurality of vent holes communicated with the blanking holes are further formed in the lower die knife body, and the vent holes are used for enabling external air to flow into the blanking holes. The lower die cutter body is provided with the plurality of cutter edge straight body sections corresponding to the punches, the cutter edge inclined body sections communicated with the cutter edge straight body sections are arranged below the cutter edge straight body sections, the punches can push a waste material body downwards to the positions of the cutter edge inclined body sections, and air can flow into the positions between the punches and the waste material body through the cutter edge inclined body sections. The waste body is prevented from being brought up when the punch ascends due to the fact that vacuum is formed between the waste body and the punch, and the punching quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the stamping technical field, and specifically relates to a punching die anti-blocking structure. BACKGROUND

[0002] The stamping die is a kind of special process equipment for processing materials (metal or non-metal) into parts (or semi-finished products) in cold stamping processing, and is called a cold stamping die (commonly known as a cold stamping die). Stamping is a kind of pressure processing method for separating or plastically deforming materials at room temperature by using a die installed on a press machine to apply pressure to the materials.

[0003] Among numerous types of stamping dies, the punching die is particularly widely used, such as Figure 3 As shown in the existing lower die body, after punching is completed, the waste material is directly pushed into the knife opening, and due to the long straight body of the existing knife opening, the waste material and the punch will form a vacuum state due to factors such as cutting oil when the waste material is pushed in, so that the waste material will be taken up when the punch goes up, and then falls on the die to damage the product. If the waste material is directly pushed into the blanking hole, the time of single processing is increased, and the down pressure distance of the punch also needs to be adjusted, which is troublesome, and the waste material may not be punched down due to the insufficient length of the punch. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a punching die anti-blocking structure to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A punching die anti-blocking structure, comprising a material removal block and a lower die body, a plurality of punches are arranged on the material removal block, a plurality of straight body sections corresponding to the punches are arranged on the lower die body, a plurality of inclined body sections are arranged below the straight body sections, air can flow into the space between the punches and the waste material through the inclined body sections, a plurality of blanking holes are arranged below the inclined body sections, a plurality of air holes are arranged on the lower die body and communicate with the blanking holes, and the air holes are used to make external air flow into the blanking holes.

[0007] Further, the size and shape of the punch, the straight body section and the inclined body section are matched.

[0008] Further, the air holes are four, and are symmetrically arranged around the lower die body.

[0009] Further, a tool holder is arranged below the lower die body, a plurality of through holes are symmetrically arranged on the tool holder, the through holes communicate with the blanking holes, an upwardly extending cutter is arranged between the through holes, and the cutter can abut against the bottoms of the punches.

[0010] Further, the cutter seat is detachably mounted on the bottom of the lower die cutter body, so that the cutter can be conveniently replaced after being worn out due to frequent cutting of the waste material body.

[0011] Further, the upper end face of the cutter seat is symmetrically provided with positioning columns, and the lower end face of the lower die cutter body is provided with positioning holes corresponding to the positioning columns.

[0012] Further, the cutter seat and the lower die cutter body are provided with communicating threaded holes, which are used for fixing by screw locking after the cutter seat and the lower die cutter body are mounted.

[0013] The utility model discloses the beneficial effect:

[0014] The utility model discloses a lower die cutter body is provided with a plurality of cutter edge straight body sections corresponding to the punch, and the cutter edge straight body section is provided with a cutter edge inclined body section communicating therewith below, the punch can push the waste material body to the position of the cutter edge inclined body section, the air can flow into between the punch and the waste material body through the cutter edge inclined body section, the vacuum is prevented from being formed between the waste material body and the punch, and the waste material body is prevented from being lifted when the punch rises, and the stamping quality and efficiency are improved.

[0015] The other features and advantages of the utility model will be described in detail in the following specific embodiment part. DRAWINGS DESCRIPTION

[0016] Figure 1 The embodiment one overall structure diagram of the utility model discloses.

[0017] Figure 2 The embodiment one overall sectional view of the utility model discloses.

[0018] Figure 3 The prior art schematic diagram.

[0019] Figure 4 The lower die cutter body sectional view of the embodiment of the utility model discloses.

[0020] Figure 5 The waste material body push position diagram of the embodiment one of the utility model discloses.

[0021] Figure 6 The side sectional view of the utility model discloses.

[0022] Figure 7 The embodiment two overall structure diagram of the utility model discloses.

[0023] Figure 8 The embodiment two overall front sectional view of the utility model discloses.

[0024] Figure 9The second embodiment of the utility model is a side sectional view of the lower die cutter body and the cutter seat.

[0025] Figure 10 The second embodiment of the utility model is an exploded view of the lower die cutter body and the cutter seat.

[0026] Reference signs: 1, material removal block; 2, lower die cutter body; 3, punch; 4, cutter seat; 5, waste material body; 21, straight blade section; 22, inclined blade section; 23, blanking hole; 24, air hole; 25, positioning hole; 41, cutter; 42, through hole; 43, positioning column; 44, threaded hole. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model.

[0028] Please refer to Figures 1-10 ;

[0029] Embodiment one

[0030] A punching die anti-blocking structure, comprising a material removal block 1 and a lower die cutter body 2, a plurality of punches 3 are arranged on the material removal block 1, the product is punched and stamped through the punches 3, after stamping, the punches 3 are first lifted by an upper die seat (not shown in the figure) and are retracted into the material removal block and separated from the product, after the punches 3 are lifted by a certain distance, the material removal block 1 is lifted and separated from the product, a plurality of straight blade sections 21 corresponding to the punches 3 are arranged on the lower die cutter body 2 and are used for cooperating with the punches 3 to punch the product, inclined blade sections 22 are arranged below the straight blade sections 21 and are communicated, and the inclined blade sections 22 are used for guiding the product to fall off, the inclined blade sections 22 are arranged in a plurality of rows and are staggered, and the inclined blade sections 22 are arranged in a plurality of rows and are staggered. Figure 6As shown, the punch 3 will punch the waste body 5 into the knife bevel section 22, and the knife bevel section 21 is in a spread shape, only the short edges of the waste body 5 are clamped, and the long edge has an opening, air can flow into the knife bevel section 22, and when the punch 3 rises, air will flow from the knife bevel section 22 between the punch 3 and the waste body 5, effectively reducing the adsorption between the two, so that the waste body 5 will not be accidentally taken up with the punch 3, ensuring the smooth progress of the stamping process, when processing the second product, the front waste body 5 will be finally squeezed out by the waste body 5 of the rear stamped product, and a plurality of blanking holes 23 are arranged below the knife bevel section 22, which expand outward from top to bottom, forming a horn shape, which will not clamp the waste body 5, facilitating the falling of the waste body 5. The punching die is usually provided with a vacuum suction device (not shown in the figure) in communication with the blanking hole 23 when in use, but the existing lower die body 2 will form a sealed state after the punch 3 punches into the knife straight section 21, and air cannot enter, making it difficult for the vacuum suction device to inhale, causing the waste body 5 clamped in the knife bevel section 22 to be difficult to suck off. Therefore, a plurality of air holes 24 are further arranged on the lower die body 2 and communicate with the blanking hole 23, and the air holes 24 are used to make external air flow into the blanking hole 23. When the air is sucked, the air entering can enhance the suction of the vacuum suction device, improve the suction effect of the waste body 5, avoid the accumulation of the waste body 5, and achieve the effect of preventing the waste from jumping, and preferably, the air holes 24 are provided with four, which are symmetrically arranged on the four periphery of the lower die body 2, which greatly improves the adsorption effect of the waste body 5.

[0031] Specifically, the product to be processed is placed first, the punch 3 on the stripper block 1 punches the product, and the waste body 5 after punching is pushed into the knife bevel section 22, and then the vacuum suction device inhales, and the waste body 5 clamped in the knife bevel section 22 is sucked off, thereby achieving the effect of preventing the waste from jumping, improving the stamping quality and efficiency.

[0032] In this embodiment, the punch 3, the knife straight section 21 and the knife bevel section 22 are matched in size and shape, which ensures that the punch 3 can normally perform stamping work, and the waste body 5 can be hung by the knife bevel section 22, thereby achieving the effect of preventing the waste from jumping.

[0033] Embodiment two

[0034] The embodiment also provides a punching die anti-blocking structure, which is a further improvement based on embodiment one. The technical solutions described in embodiment one are also applicable to this embodiment, and the technical solutions described in embodiment one will not be described again. Specifically, the punching die anti-blocking structure comprises a lower die body 2 and a punch 3 arranged on the lower die body 2, and the punch 3 is arranged in the lower die body 2 and is in communication with a blanking hole 23 arranged in the lower die body 2.

[0035] The lower die cutter body 2 is provided with a cutter seat 4, the cutter seat 4 is symmetrically provided with a through hole 42, the two through holes 42 are communicated with the blanking hole 23, the waste material body 5 falls from the through hole 42, and the cutting knife 41 extending upwards is arranged between the two through holes 42, the cutting knife 41 can abut against the bottom of the plurality of punches 3, when the punch 3 pushes the waste material body 5 downwards, the waste material body 5 is directly pushed to the cutting head of the cutting knife 41, and the waste material body 5 is rapidly cut off by cooperating with the cutting knife 41, and the cut waste material body 5 naturally falls due to gravity.

[0036] The cutter seat 4 can be detachably installed at the bottom of the lower die cutter body 2, so that the cutting knife 41 can be conveniently replaced after being worn out due to frequent cutting of the waste material body 5, of course, if the cutting knife 41 can be reused, the cutter seat 4 can also be detached, and the cutting knife 41 is manually polished and repaired by using external equipment or polishing tools, and then reinstalled, thereby avoiding material waste,

[0037] The positioning column 43 is symmetrically arranged at the upper end face of the cutter seat 4, and the positioning hole 25 corresponding to the positioning column 43 is arranged at the lower end face of the lower die cutter body 2, when the cutter seat 4 is installed, the positioning column 43 is aligned with the positioning hole 25 and inserted, so that the cutting knife 41 can be directly aligned with the punch 3 without manual alignment, thereby improving the installation efficiency.

[0038] The cutter seat 4 and the lower die cutter body 2 are provided with the threaded hole 44 in communication, and the threaded hole 44 is used for fixing by using a screw after the cutter seat 4 and the lower die cutter body 2 are installed.

[0039] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the specification is described in this way only for the sake of clarity, those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other implementations that those skilled in the art can understand.

Claims

1. A punching die anti-clogging structure, comprising a stripper block (1) and a lower die body (2), wherein a plurality of punches (3) are provided on the stripper block (1), characterized in that, The lower die cutter body (2) is provided with several straight cutting edge sections (21) corresponding to the punch (3). Below the straight cutting edge sections (21) are connected oblique cutting edge sections (22). Through the oblique cutting edge sections (22), air can flow into the space between the punch (3) and the waste body (5). Below the oblique cutting edge sections (22) are provided drop holes (23). The lower die cutter body (2) is also provided with several ventilation holes (24) that communicate with the drop holes (23). The ventilation holes are used to allow external air to flow into the drop holes (23).

2. The anti-clogging structure for punching dies according to claim 1, characterized in that, The punch (3), the straight blade section (21), and the oblique blade section (22) are matched in size and shape.

3. The anti-clogging material structure for a punching die according to claim 1, characterized in that, The ventilation holes (24) are provided in four places, which are symmetrically arranged around the lower die body (2).

4. The anti-clogging structure for punching dies according to claim 1, characterized in that, The lower die body (2) is provided with a cutter holder (4), and the cutter holder (4) is provided with symmetrical through holes (42). Both through holes (42) are connected to the blanking hole (23). A cutter (41) extending upward is provided between the two through holes (42). The cutter (41) can abut against the bottom of several punches (3).

5. The anti-clogging material structure for a punching die according to claim 4, characterized in that, The blade holder (4) is detachably installed at the bottom of the lower die blade body (2) so that the cutter (41) can be easily replaced after it wears out due to frequent cutting of the waste material body (5).

6. The anti-clogging material structure for a punching die according to claim 5, characterized in that, The upper end face of the tool holder (4) is symmetrically provided with positioning posts (43), and the lower end face of the lower die tool body (2) is provided with positioning holes (25) corresponding to the positioning posts (43).

7. The anti-clogging structure for a punching die according to claim 6, characterized in that, The tool holder (4) and the lower die body (2) are provided with a threaded hole (44) that communicates with each other. The threaded hole (44) is used to fix the tool holder (4) and the lower die body (2) by tightening with screws after installation.

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