Blanking punching needle structure of male die
By incorporating elastic push pins and elastic press pins in the punch blanking needle, the problems caused by the material sheet stagnation and blanks are solved, and the smoothness of discharge and processing accuracy are improved.
Patent Information
- Application Number
- CN202421345865.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-13
AI Technical Summary
After the existing blanking punch needle is punched, the sheet of the blanking hole is easily stuck in the blanking hole, resulting in difficulty in discharging, and the blank is easily brought up during the reset process, resulting in structural deformation and erroneous displacement, and reducing processing accuracy and efficiency.
Design a punch punch needle structure with built-in elastic push pin and elastic press pin. The elastic push pin is used to push the piece, and the elastic press pin is used to press the blank to prevent it from being carried up. Through the elastic lifting mechanism, the smooth discharge of the material sheet and the stable pressing of the blank are achieved.
The smooth discharge of the material sheet is achieved, the phenomenon of choking is avoided, and the blank is prevented from being brought up during the reset process, improving the smoothness of the discharge and processing accuracy.
Smart Images
Figure CN222754199U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of blanking and punching needles, in particular to a punching and punching needle structure of a punch die. Background Art
[0002] The punch needle that punches the blank to form the required sheet is called the blanking punch needle. The sheet is easily stuck in the blanking hole after punching by the existing blanking punch needle, which makes it difficult to discharge the sheet. In addition, during the upward movement process of the blanking punch needle when resetting, the blank is easily lifted up due to the chain effect. Although the lifting distance is relatively small, it is easy to cause structural deformation and incorrect displacement of the blank, thereby reducing the processing accuracy and efficiency. Summary of the invention
[0003] Purpose of the invention: In order to overcome the deficiencies in the prior art, the utility model provides a punch needle structure for blanking materials, which uses an elastic push pin built into the punch needle body to push the material sheet and an elastic press pin to press the blank, thereby improving the smoothness of material discharge and preventing the blank from being lifted up and causing erroneous displacement.
[0004] Technical solution: To achieve the above-mentioned purpose, the utility model provides a punch needle structure for blanking, including a punch needle body, the center position of the punch needle body is a blanking hole, the two sides are mounting holes, and the cutting end of the blanking hole is a blanking cutting blade; an elastic push pin is arranged in the mounting hole, and an elastic pressure pin is arranged to enclose the blanking cutting blade, and the elastic push pin and the elastic pressure pin are both elastically raised and lowered relative to the blanking cutting blade.
[0005] Furthermore, the elastic push pin is located at the center of the blanking hole, and a plurality of the elastic pressing pins are evenly distributed along the enclosed contour of the blanking cutting blade.
[0006] Furthermore, an expansion hole is provided at the top of the blanking hole, and a support ring plate is installed at the boundary between the expansion hole and the blanking hole. A slip ring that slides with the blanking hole is fixedly provided on the elastic pushing pin, and a central elastic part that provides pushing elastic force to the elastic pushing pin is connected between the slip ring and the support ring plate.
[0007] Furthermore, the elastic pressing pin slides from the boundary between the expansion hole and the blanking hole to penetrate the support ring plate and the punch needle body, and a pin head is connected to the top of the elastic pressing pin, and an outer elastic part is connected between the pin head and the support ring plate to provide pressing elastic force to the elastic pressing pin.
[0008] Furthermore, a gas-conducting notch communicating with the outside is provided on the top side of the punch needle body, and the gas-conducting notch, the expansion hole, the inner ring of the support ring plate, and the blanking hole are connected in sequence.
[0009] Furthermore, the pushing end of the elastic pushing pin and the pressing end of the elastic pressing pin are both planar structure ends, and the edges of the respective planar structure ends are both arc structures.
[0010] Furthermore, the mounting hole of the punch needle body is symmetrically arranged with respect to the blanking hole.
[0011] Beneficial effects: The utility model uses the elastic pushing pin built into the punch needle body to push the material sheet and the elastic pressing pin to press the blank. On the one hand, the material sheet is discharged smoothly from the blanking hole without jamming. On the other hand, during the resetting process of the punch needle body, the blank is pressed to prevent it from being lifted up and causing structural deformation, thereby improving the smoothness of material discharge and avoiding the blank from being lifted up and causing erroneous displacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Attached Figure 1 It is a schematic diagram of the overall structure of the utility model. DETAILED DESCRIPTION
[0013] The utility model is further described below in conjunction with the accompanying drawings.
[0014] As attached Figure 1 As shown, a punch needle structure for blanking includes a punch needle body 1, wherein the center position of the punch needle body 1 is a blanking hole 10, and the two sides are mounting holes 11, and the cutting end of the blanking hole 10 is a blanking cutting blade 12; an elastic push pin 2 is arranged in the mounting hole 11, and an elastic pressing pin 3 is arranged to surround the blanking cutting blade 12, and the elastic push pin 2 and the elastic pressing pin 3 are both elastically raised and lowered relative to the blanking cutting blade 12. The utility model pushes the material sheet by the elastic push pin 2 built into the punch needle body 1, and presses the blank by the elastic pressing pin 3, so that on the one hand, the material sheet is discharged smoothly from the blanking hole 10 without jamming; on the other hand, during the resetting process of the punch needle body 1, the blank is pressed to prevent it from being lifted up and causing structural deformation, thereby improving the smoothness of the discharge and avoiding the blank from being lifted up and causing erroneous displacement.
[0015] More specifically, in order to ensure the accuracy of pushing the material sheet and avoid the deviation of the pushing force, the elastic pushing pin 2 is located at the center of the blanking hole 10. In addition, in order to ensure the coverage accuracy and uniformity of the pressing range, several of the elastic pressing pins 3 are evenly distributed along the enclosed contour of the blanking cutting blade 12.
[0016] The top of the blanking hole 10 is provided with an expansion hole 13, and a support ring plate 4 is installed at the boundary between the expansion hole 13 and the blanking hole 10. A slip ring 5 that slides with the blanking hole 10 is fixedly provided on the elastic push pin 2, and a central elastic member 6 that provides a push elastic force to the elastic push pin 2 is connected between the slip ring 5 and the support ring plate 4. The slip ring 5 guides the displacement of the elastic push pin 2 and maintains its axial displacement. The elastic pressing pin 3 slides through the support ring plate 4 and the punch needle body 1 from the boundary between the expansion hole 13 and the blanking hole 10, and a pin head 30 is connected to the top of the elastic pressing pin 3, and a peripheral elastic member 7 that provides a push elastic force to the elastic pressing pin 3 is connected between the pin head 30 and the support ring plate 4. In the utility model, as a preference, both the central elastic member 6 and the peripheral elastic member 7 are springs.
[0017] In order to ensure the smoothness of the displacement of the elastic push pin 2 and avoid the failure of pushing or resetting due to pressure imbalance, in the utility model, the measures taken are as follows: the top side of the punch needle body 1 is provided with an air guide gap 14 that is connected to the outside world, and the air guide gap 14, the expansion hole 13, the inner circle of the support ring plate 4, and the blanking hole 10 are connected in sequence.
[0018] The pushing end of the elastic pushing pin 2 and the pressing end of the elastic pressing pin 3 are both planar structure ends, and the edges of the respective planar structure ends are arc structures to avoid indentation damage to the sheet and the blank.
[0019] The mounting hole 11 of the punch needle body 1 is symmetrically arranged with respect to the blanking hole 10 . The mounting hole 11 is a threaded hole, and the punch needle body 1 is fixed to the punch structure with mounting screws, so that the fixation is relatively stable.
[0020] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.
Claims
1. A punch needle structure for blanking, comprising a punch needle body (1), wherein the center of the punch needle body (1) is a blanking hole (10), the two sides are mounting holes (11), and the cutting end of the blanking hole (10) is a blanking cutting blade (12); the characteristics are: An elastic material pushing pin (2) is arranged in the mounting hole (11), and an elastic material pressing pin (3) is arranged to surround the blanking cutting blade (12). The elastic material pushing pin (2) and the elastic material pressing pin (3) are both elastically raised and lowered relative to the blanking cutting blade (12).
2. A punching needle structure for blanking according to claim 1, characterized in that: The elastic material pushing pin (2) is located at the center of the blanking hole (10), and a plurality of the elastic material pressing pins (3) are evenly distributed along the enclosed contour of the blanking cutting blade (12).
3. A punching needle structure for blanking according to claim 1, characterized in that: The top of the blanking hole (10) is provided with an expansion hole (13), and a support ring plate (4) is installed at the boundary between the expansion hole (13) and the blanking hole (10). A slip ring (5) that is slidably matched with the blanking hole (10) is fixedly arranged on the elastic push pin (2), and a central elastic member (6) that provides a push elastic force to the elastic push pin (2) is connected between the slip ring (5) and the support ring plate (4).
4. A punching needle structure for blanking according to claim 3, characterized in that: The elastic pressing pin (3) is slidably disposed from the boundary between the expansion hole (13) and the blanking hole (10) to penetrate the support ring plate (4) and the punch needle body (1); a pin head (30) is connected to the top of the elastic pressing pin (3); and an outer elastic member (7) is connected between the pin head (30) and the support ring plate (4) to provide a pressing elastic force to the elastic pressing pin (3).
5. A punching needle structure for blanking according to claim 4, characterized in that: The top side of the punch needle body (1) is provided with an air guide notch (14) for conducting air to the outside world, and the air guide notch (14), the expansion hole (13), the inner ring of the support ring plate (4), and the blanking hole (10) are connected in sequence.
6. A punching needle structure for blanking according to any one of claims 1 to 5, characterized in that: The pushing end of the elastic pushing pin (2) and the pressing end of the elastic pressing pin (3) are both planar structure ends, and the edges of the respective planar structure ends are both arc structures.
7. A punching needle structure for blanking according to any one of claims 1 to 5, characterized in that: The mounting hole (11) of the punch needle body (1) is symmetrically arranged with respect to the blanking hole (10).