Hardware machining stamping die facilitating demolding

Abstract

The utility model relates to hardware machining technical field, and disclose a hardware machining punch -die convenient to demould, including base and punch -die body on base, punch -die body can divide into two mould seats of upper and lower, the bottom one end of punch -die body is equipped with swivel base in lower mould seat, one side of swivel base is equipped with the pressing plate, the other side of swivel base is equipped with fixed plate, and one end of fixed plate is welded with two symmetrical distribution's connecting blocks, and the pivot is equipped between two connecting blocks, and the waist hole that is matched with pivot is set up in two connecting blocks, and the circumferential outside of pivot is rotatably installed with the thimble through the bearing. The utility model through pressing plate and fixed plate between mutual cooperation operation has realized the quick auxiliary demoulding to hardware, has greatly improved the demoulding efficiency, has reduced the production delay situation because of the difficulty of demoulding.

Description

Technical Field

[0001] This utility model relates to the field of hardware processing technology, and more specifically to a hardware processing stamping die that is easy to demold. Background Technology

[0002] In the large-scale industrial production of hardware parts, stamping has become one of the preferred forming processes due to its advantages of high efficiency, high consistency and low cost. As the core equipment of the stamping process, the performance of stamping dies directly determines the quality of products, production efficiency and manufacturing costs.

[0003] In existing technologies, after completing processes such as blanking, bending, or deep drawing, conventional stamping dies often cause workpieces to adhere tightly to the die cavity (cavity) due to material elastic recovery, oil film adsorption, or vacuum effect. If the workpiece cannot be reliably removed from the die in a timely manner, a series of problems will arise: First, the ejector pin cannot guarantee that the workpiece will be ejected in one go after stamping. The operator must manually reach into the die cavity to pry the workpiece out, which not only reduces production efficiency but also poses a great threat to the personal safety of the operator, easily leading to serious mechanical injury accidents. Second, on automated stamping production lines, if the workpiece is not successfully ejected, subsequent continuous stamping will cause material stacking and extrusion inside the die, instantly generating huge impact loads. This will not only damage expensive die workpieces but may even cause the press to stop, resulting in huge economic losses. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a metal processing stamping die that is easy to demold, so as to solve the problem that the workpiece is not easy to remove from the die after stamping.

[0005] This utility model provides the following technical solution: a metal processing stamping die that is easy to demold, including a base and a stamping die body on the base. The stamping die body can be divided into upper and lower die bases. The stamping die body is provided with a rotating seat at one end of the bottom of the lower die base. A pressure plate is provided on one side of the rotating seat. A fixing plate is provided on the other side of the rotating seat. Two symmetrically distributed connecting blocks are welded to one end of the fixing plate. A rotating shaft is provided between the two connecting blocks. A waist hole that cooperates with the rotating shaft is opened in both connecting blocks. An ejector pin is rotatably installed on the outer circumference of the rotating shaft through a bearing. A limiting component for auxiliary guidance of the ejector pin is provided at the bottom of the stamping die body.

[0006] As a further embodiment of this utility model, the limiting component includes a sleeve disposed at the bottom of the lower die base of the stamping die body.

[0007] As a further embodiment of this invention, the initial state of the ejector pin is located inside the sleeve, that is, the highest end of the ejector pin is not lower than the lowest end of the sleeve.

[0008] As a further embodiment of this utility model, the top of the ejector pin is provided with a circular plate, which is located inside the lower mold base and contacts the elastic unloading component inside the lower mold base.

[0009] As a further embodiment of this invention, the upper surface of the circular plate is provided with a plurality of grooves evenly distributed.

[0010] As a further embodiment of this utility model, a limiting block for limiting the rotation angle of the fixing plate is provided at one end of the fixing plate and at the bottom of the lower mold base.

[0011] As a further embodiment of this utility model, the rotating seat is provided with a torsion spring for resetting the fixed plate, and the torsion spring is located outside the support shaft inside the rotating seat.

[0012] As a further embodiment of this utility model, a rotating plate is hinged to one side of the pressure plate, and a magnetic block that cooperates with the rotating plate is provided at one end of the pressure plate.

[0013] The technical effects and advantages of this utility model are as follows: 1. This utility model achieves rapid assisted demolding of hardware parts through the cooperation between the pressure plate and the fixing plate, which greatly improves demolding efficiency, reduces production delays caused by demolding difficulties, and effectively enhances the smoothness of the entire hardware processing and stamping production.

[0014] 2. This utility model, through the cooperative design of the ejector pin and the limiting component, ensures the stability and accuracy of the ejector pin during the stamping process, so that the hardware parts can be smoothly and accurately ejected from the mold after stamping, avoiding workpiece damage or mold damage caused by poor ejection.

[0015] 3. This utility model provides an elastic unloading component inside the lower die base, which contacts the circular plate at the top of the ejector pin. By utilizing the elastic force of the elastic unloading component, the hardware parts are ejected from the die after stamping, further reducing the labor intensity of operators and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the lower mold base of this utility model.

[0018] Figure 3 This is a schematic diagram showing the position of the fixing plate of this utility model.

[0019] Figure 4 This is a schematic diagram of the rotation of the fixed plate of this utility model.

[0020] Figure 5 This is a schematic diagram of the ejector pin assembly structure of this utility model.

[0021] Figure 6 This is a schematic diagram of the limiting block of this utility model.

[0022] The attached diagram is labeled as follows: 1. Base; 2. Stamping die body; 3. Rotating plate; 4. Pressure plate; 5. Rotating seat; 6. Torsion spring; 7. Fixing plate; 8. Ejector pin; 9. Sleeve; 10. Limiting block; 11. Connecting block; 12. Rotating shaft; 13. Round plate; 14. Groove; 15. Magnetic block; 16. Waist hole. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] Reference Figures 1-6 This utility model provides a metal processing stamping die that is easy to demold, including a base 1 and a stamping die body 2 on the base 1. The stamping die body 2 can be divided into upper and lower die seats. The upper die seat in the stamping die body 2 is installed on the press slide. As the slide moves up and down, it realizes the stamping operation of the metal processing parts. The lower die seat is installed on the press platform. The lower die seat includes guide parts and unloading parts. The unloading parts include a push rod, a spring and an elastic unloading component, which can realize the automatic ejection of the stamped metal parts. The stamping die body 2 is the prior art. Those skilled in the art can set it according to actual needs, which will not be described in detail here. The stamping die body 2 has a rotating seat 5 at one end of the bottom of the lower die base. A pressure plate 4 is located on one side of the rotating seat 5, and a fixed plate 7 is located on the other side. Two symmetrically distributed connecting blocks 11 are welded to one end of the fixed plate 7. A rotating shaft 12 is located between the two connecting blocks 11. Each connecting block 11 has a slotted hole 16 that mates with the rotating shaft 12. An ejector pin 8 is rotatably mounted on the outer circumference of the rotating shaft 12 via a bearing. Both the pressure plate 4 and the fixed plate 7 are welded and fixed to the support shaft inside the rotating seat 5. Therefore, the operator only needs to apply downward force to the pressure plate 4, which will cause the fixed plate 7 to rotate along the support shaft, thereby causing the ejector pin 8 and the rotating shaft 12 to slide along the slotted hole 16, achieving the ejection pin... The push of the ejector pin 8 against the elastic unloading component allows the ejector pin 8 to cooperate with the elastic unloading component to smoothly eject the stamped metal parts from the mold, completing the demolding operation. This effectively reduces the time and difficulty of manually removing the metal parts. At the same time, due to the design of the ejector pin 8 and the rotating shaft 12 sliding along the waist hole 16, the ejector pin 8 has a certain buffer and adjustment space during the pushing process. The waist hole 16 provides a stable sliding track for the ejector pin 8 and the rotating shaft 12, ensuring the stability of the ejector pin 8 during the pushing process. It can also automatically adjust the pushing force and direction of the ejector pin 8 according to the actual shape of the metal parts and the stamping situation.

[0025] In addition, the bottom of the stamping die body 2 is provided with a limiting component for auxiliary guidance of the ejector pin 8. The limiting component includes a sleeve 9 set at the bottom of the lower die base of the stamping die body 2. The ejector pin 8 can move along the preset straight line direction of the sleeve 9. The sleeve 9 is provided with a guide hole that matches the ejector pin 8. The inner wall of the guide hole is smooth and has high precision, which can further ensure the straightness of the ejector pin 8 during the movement process and prevent the ejector pin 8 from deviating or shaking when pushing the hardware, thereby ensuring that the hardware can be accurately and smoothly ejected from the die. In the initial state, the ejector pin 8 is located inside the sleeve 9, that is, the highest end of the ejector pin 8 is not lower than the lowest end of the sleeve 9. When no stamping operation is performed, the ejector pin 8 is in a relatively static and stable position. At this time, the ejector pin 8 will neither shake randomly inside the sleeve 9 nor break away from the constraint range of the sleeve 9.

[0026] To further stabilize the ejection of the hardware, the top of the ejector pin 8 is provided with a circular plate 13. The upper surface of the circular plate 13 is provided with multiple grooves 14 evenly distributed. The design of these grooves 14 has a unique function. On the one hand, during the interaction between the ejector pin 8 and the elastic unloading assembly, the grooves 14 can increase the friction between the ejector pin 8 and the elastic unloading assembly, so that the ejector pin 8 will not easily slip when subjected to the force of the elastic unloading assembly. When the ejector pin 8 pushes the hardware and is subjected to a reaction force, the grooves 14 can disperse some of the stress and reduce the impact on the circular plate 13 and the ejector pin 8 as a whole. The circular plate 13 is located inside the lower mold base and contacts the elastic unloading component inside the lower mold base. The circular plate 13 increases the contact area with the elastic unloading component, so that the ejector pin 8 is subjected to a more uniform and stable force when subjected to the force of the elastic unloading component. This effectively avoids the damage or deformation of the ejector pin 8 caused by excessive local force. At the same time, the cooperation between the circular plate 13 and the groove 14 can also disperse the reaction force of the ejector pin 8 when pushing the hardware to a certain extent, further extending the service life of the ejector pin 8.

[0027] In particular, a limiting block 10 is provided at one end of the fixed plate 7 and at the bottom of the lower mold base to limit the rotation angle of the fixed plate 7. When the fixed plate 7 rotates to a specific angle, it will contact the limiting block 10. This is to prevent the fixed plate 7 and the ejector pin 8 from ejecting the hardware part by too much distance due to the unrestricted angle, which would cause the hardware part to deviate from the preset position. The limiting block 10 plays a precise limiting role, ensuring that the fixed plate 7 can only rotate within the specified angle range. In this way, the ejector pin 8 can also accurately control the ejection distance of the hardware part under the drive of the fixed plate 7, and the hardware part can be accurately ejected according to the preset position.

[0028] When the fixed plate 7 completes the auxiliary ejection operation of the hardware, the rotating seat 5 is equipped with a torsion spring 6 for resetting the fixed plate 7. The torsion spring 6 is located outside the support shaft inside the rotating seat 5 and abuts against the inner wall of the rotating seat 5. After the fixed plate 7 completes the auxiliary ejection operation of the hardware, the torsion spring 6 will rely on its own elastic restoring force to drive the fixed plate 7 to rotate around the support shaft, so that the support shaft and the fixed plate 7 return to the initial position, so as to carry out the next hardware ejection operation.

[0029] In addition, a rotating plate 3 is hinged to one side of the pressure plate 4. A magnetic block 15 that cooperates with the rotating plate 3 is provided at one end of the pressure plate 4. The cooperation between the rotating plate 3 and the pressure plate 4 can increase the contact area for the operator when performing the pressing operation. The setting of the magnetic block 15 can make the rotating plate 3 and the pressure plate 4 fit tightly together by magnetic attraction when they are in a specific position, preventing the rotating plate 3 from shaking randomly when not in operation and ensuring the stability of the mold structure. When the operator performs the pressing operation, the rotating plate 3 can be rotated to disengage the rotating plate 3 from the magnetic block 15 and form a larger contact surface with the pressure plate 4, which is convenient for applying pressure. After the stamping operation is completed, the rotating plate 3 rotates to be attracted to the magnetic block 15, which greatly saves space and avoids the rotating plate 3 occupying extra space when not in use.

[0030] The demolding process for metal parts can be divided into the following steps: S1: The operator first places the metal parts to be stamped in a suitable position between the upper and lower die bases of the stamping die body 2 to ensure accurate positioning of the metal parts.

[0031] S2: Start the press. The press slide drives the upper die holder in the stamping die body 2 to move downward to stamp the metal parts. During the stamping process, the guide parts in the lower die holder play a guiding role to ensure that the upper die holder and the lower die holder are accurately closed. At the same time, the springs and other components in the unloading parts are in a state of stored force.

[0032] S3: After the stamping is completed, the operator applies force downward to the pressure plate 4 and the rotating plate 3, so that the ejector pin 8 and the rotating shaft 12 slide along the waist hole 16, and the ejector pin 8 moves along the preset straight line direction of the sleeve 9. S4: During the sliding process, the round plate 13 at the top of the ejector pin 8 contacts the elastic unloading component in the lower mold base. Under the combined action of the ejector pin 8 and the elastic unloading component, the stamped metal parts are smoothly ejected from the mold, completing the demolding operation. S5: When the fixed plate 7 rotates to a specific angle, it will contact the limiting block 10 located at one end of the fixed plate 7 and at the bottom of the lower mold base. The limiting block 10 limits the rotation angle of the fixed plate 7, thereby accurately controlling the ejection distance of the ejector pin 8 to the hardware, so that the hardware is accurately ejected according to the preset position.

[0033] S6: After the auxiliary ejection operation of the hardware is completed, the torsion spring 6 inside the rotating seat 5, located outside the support shaft, drives the fixed plate 7 to rotate around the support shaft by its own elastic restoring force, so that the support shaft and the fixed plate 7 return to their initial positions, so as to carry out the next hardware ejection operation.

[0034] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change. The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs. The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A metal processing stamping die that is easy to demold, comprising a base (1) and a stamping die body (2) on the base (1), the stamping die body (2) being divisible into upper and lower die bases, characterized in that: The stamping die body (2) is provided with a rotating seat (5) at one end of the bottom of the lower die base, and a pressure plate (4) is provided on one side of the rotating seat (5). On the other side of the rotating seat (5), there is a fixed plate (7). Two symmetrically distributed connecting blocks (11) are welded to one end of the fixed plate (7). A rotating shaft (12) is provided between the two connecting blocks (11). A waist hole (16) that cooperates with the rotating shaft (12) is opened in both connecting blocks (11). An ejector pin (8) is rotatably installed on the outer circumference of the rotating shaft (12) through a bearing. A limiting component for auxiliary guidance of the ejector pin (8) is provided at the bottom of the stamping die body (2).

2. The metal processing stamping die for easy demolding according to claim 1, characterized in that: The limiting component includes a sleeve (9) disposed at the bottom of the lower die base of the stamping die body (2).

3. A metal processing stamping die for easy demolding according to claim 2, characterized in that: The initial state of the ejector pin (8) is located inside the sleeve (9), that is, the highest end of the ejector pin (8) is not lower than the lowest end of the sleeve (9).

4. A metal processing stamping die for easy demolding according to claim 3, characterized in that: The top of the ejector pin (8) is provided with a circular plate (13), which is located inside the lower mold base and contacts the elastic unloading component inside the lower mold base.

5. A metal processing stamping die for easy demolding according to claim 4, characterized in that: The upper surface of the circular plate (13) is provided with a plurality of grooves (14) evenly distributed.

6. A metal processing stamping die for easy demolding according to claim 1, characterized in that: A limiting block (10) is provided at one end of the fixed plate (7) and at the bottom of the lower mold base to limit the rotation angle of the fixed plate (7).

7. A metal processing stamping die for easy demolding according to claim 1, characterized in that: The rotating seat (5) is provided with a torsion spring (6) for resetting the fixed plate (7), and the torsion spring (6) is located on the outside of the support shaft inside the rotating seat (5).

8. A metal processing stamping die for easy demolding according to claim 1, characterized in that: A rotating plate (3) is hinged to one side of the pressure plate (4), and a magnetic block (15) is provided at one end of the pressure plate (4) to cooperate with the rotating plate (3).

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