A high-precision integrated wire mesh die

Abstract

This utility model provides a high-precision integrated screen-forming mold, comprising: an upper mold assembly and a lower mold assembly. The lower mold assembly includes a lower mold base, on which a lower shearing plate is mounted, and on which a material ejector plate is mounted. Guide post seats are mounted on each of the four end edges of the lower mold base, and vertically upward-arriving guide posts are mounted on the guide post seats. Rebound springs are sleeved on the guide posts. The upper mold assembly includes an upper mold base, on which a pressure pin plate is mounted at the bottom, and an upper base plate is mounted at the bottom of the pressure pin plate. Two rows of vertically downward-arriving punch pins are mounted on the pressure pin plate. Guide post sleeves matching the guide posts on the lower mold base are mounted on each of the four end edges of the upper mold base. The four guide post sleeves are correspondingly sleeved on the four guide posts, and the upper mold base is lifted upward by four rebound springs. This utility model, through its structural design of the screen-forming mold, can reduce vibration during the stamping process and enhance the precision of the screen-forming process.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically to a high-precision integrated mesh forming mold. Background Technology

[0002] In theory, the smaller the hole diameter, the more remaining machining space, which is more conducive to the complete machining of wire-cut round holes. However, a smaller hole diameter also means higher precision and greater machining difficulty. Traditional round hole metal mesh generally has lower precision, and due to the large number of round holes in the mesh-making die, the accumulation of errors during the machining process will cause deviations in the round holes (irregular round holes). In traditional wire mesh punching die structures, the upper die assembly consists of an upper die frame, a pressure plate, an upper base plate, and a ejector plate. Springs are placed in the ejector plate and the upper base plate, and the ejector plate and the upper base plate are locked together with screws. The lower die assembly consists of a lower die frame and a lower shearing plate. The metal plate to be punched is placed between the ejector plate and the lower shearing plate. In actual operation, the upper die assembly is locked to the machine tool punch, and the machine tool punch drives the upper die assembly to move up and down. The ejector plate moves simultaneously with the upper die assembly, and the ejection is achieved by the elastic force between the ejector plate and the upper base plate. However, this design requires the upper die assembly and the lower die assembly to be completely separated. Each punching requires separation and re-contact, which increases the risk of vibration due to the vibration generated during punching, thus affecting the punching accuracy. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model proposes a high-precision integrated wire mesh forming mold. Through structural design of the wire mesh forming mold, the ejector plate and the lower mold assembly are fixed, and the upper mold assembly is not connected to the machine tool punch. The upper mold assembly and the lower mold assembly do not need to be completely separated during each impact, thereby reducing vibration during the stamping process, making the stamping process more stable, and thus enhancing the accuracy of wire mesh forming.

[0004] To achieve the above technical solution, this utility model provides a high-precision integrated wire mesh forming mold, comprising: an upper mold assembly and a lower mold assembly. The lower mold assembly includes a lower mold frame, on which a lower shearing plate is mounted. The lower shearing plate has two rows of through holes for lower punches. A ejector plate is mounted on the lower shearing plate, on which two rows of ejector holes for punches are provided. The lower mold frame, the lower shearing plate, and the ejector plate are locked together by screws, and the through holes for lower punches and the ejector holes for punches are aligned vertically. Guide pillar seats are mounted on all four ends of the lower mold frame, and guide pillars are mounted on the guide pillar seats, with a counter-current spring sleeved on the guide pillars. The upper mold assembly includes an upper... The mold frame includes an upper mold frame with a pressure plate at its bottom and an upper base plate at its bottom. The upper base plate has two rows of through holes for upper punches and two rows of vertically downward-pointing punches on the pressure plate. The punches penetrate the through holes in the upper base plate and extend downwards. Each of the four ends of the upper mold frame has a guide post sleeve that matches the guide posts on the lower mold frame. The four guide post sleeves are fitted onto the four guide posts, and four recoil springs push the upper mold frame upwards. Each guide post sleeve has a corresponding limit screw hole at its top, and a limit screw is installed in the limit screw hole, locking the limit screw to the top of the guide post through the limit screw hole.

[0005] Preferably, the lower die holder is provided with two rows of punch through holes, which are aligned vertically with the lower punch through hole and the punch ejection through hole. By providing the punch through holes, the punch needles can be further protected.

[0006] Preferably, the pressure needle plate is equipped with 120 punching needles with a diameter of 3mm arranged in two parallel rows with downward spacing, which can punch 120 round holes with a diameter of 3mm in one punching, thereby improving the efficiency of screen making.

[0007] The advantages of this high-precision integrated screen-forming mold are as follows: This high-precision integrated screen-forming mold has a simple structure and ingenious design. Through the structural design of the mold, the ejector plate and the lower mold assembly are fixed, and the upper mold assembly is not connected to the machine tool punch. The upper and lower mold assemblies do not need to be completely separated during each impact, thereby reducing vibration during the stamping process, making the stamping process more stable, and thus enhancing the precision of the screen-forming process. In actual operation, the metal plate to be screened is placed between the ejector plate and the upper base plate. The upper mold frame is not locked to the machine tool punch; only the machine tool punch moves downward, impacting the upper mold frame and applying an impact force to the upper mold assembly. This causes the upper mold frame to overcome the spring force of the recoil spring and move downward, thereby driving the two rows of vertically downward-positioned punching pins mounted on the pressure pin plate to penetrate the through holes of the upper punch on the upper base plate, completing the punching on the metal plate. When the stamping is complete, the machine tool punch moves upward, loses its force, and the return spring rebounds, causing the upper die holder to move upward. The upper die holder then causes the pressure plate, upper base plate, and punching pins to separate from the metal plate on the ejector plate, thus completing one stamping operation. Because a limit screw is installed at the top of the upper die holder, the guide post sleeve can never completely detach from the guide post and remains fitted onto the guide post with the return spring. Therefore, the upper die assembly and lower die assembly will not completely separate during each impact, which reduces vibration during the stamping process, making the stamping process more stable and thus enhancing the accuracy of the wire mesh processing. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural assembly drawing of the present invention.

[0009] Figure 2 This is a top view of the three-dimensional structure of this utility model.

[0010] Figure 3 This is a bottom view of the three-dimensional structure of this utility model.

[0011] In the diagram: 1. Upper mold base; 2. Pressure plate; 3. Upper base plate; 31. Upper punch through hole; 4. Punch pin; 5. Ejector plate; 51. Punch ejection through hole; 6. Lower shear plate; 61. Lower punch through hole; 7. Lower mold base; 71. Punch through bottom hole; 8. Guide pillar seat; 9. Guide pillar; 10. Backlash spring; 11. Guide pillar sleeve; 12. Limit screw hole; 13. Limit screw. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0013] Example: A high-precision integrated mesh forming mold.

[0014] Reference Figures 1 to 3 As shown, a high-precision integrated wire mesh forming mold includes an upper mold assembly and a lower mold assembly. The lower mold assembly includes a lower mold base 7, which has two rows of through-holes 71 for punches. A lower shearing plate 6 is mounted on the lower mold base 7, which has two rows of through-holes 61 for lower punches. A ejector plate 5 is mounted on the lower shearing plate 6, which has two rows of ejector holes 51 for punches. The lower mold base 7, the lower shearing plate 6, and the ejector plate... The components 5 are locked together by screws, and the bottom hole 71 of the punch, the through hole 61 of the lower punch, and the ejection hole 51 of the punch are aligned vertically. The bottom hole 71 and the through hole 61 of the lower punch further protect the punch 4. Guide post seats 8 are installed on all four ends of the lower die holder 7. Vertically upward-pointing guide posts 9 are installed on the guide post seats 8, and a backlash spring 10 is sleeved on the guide post 9. The upper die assembly includes an upper die holder 1. The upper mold frame 1 is equipped with a pressure pin plate 2 at its bottom, and an upper base plate 3 is installed at the bottom of the pressure pin plate 2. The upper base plate 3 is provided with two rows of upper punch through holes 31. The pressure pin plate 2 is equipped with 120 punching pins 4 with a diameter of 3mm arranged in two parallel rows with downward spacing. It can punch 120 round holes with a diameter of 3mm in one punching, which improves the efficiency of screen making. The punching pins 4 extend downward after passing through the upper punch through holes 31 on the upper base plate 3. The four ends of the upper mold frame 1 are equipped with guide post sleeves 11 that match the guide posts 9 provided on the lower mold frame 7. The four guide post sleeves 11 are fitted onto the four guide posts 9 and the upper mold frame 1 is lifted upward by four recoil springs 10. The top of each guide post sleeve 11 is provided with a limit screw hole 12. A limit screw 13 is installed in the limit screw hole 12 and is locked to the top of the guide post 9 through the limit screw hole 12.

[0015] In this embodiment, during actual operation, the metal plate to be punched is placed between the ejector plate 5 and the upper base plate 3. The upper die holder 1 is not locked to the machine tool punch; the machine tool punch moves downward and impacts the upper die holder 1, applying an impact force to it. This causes the upper die holder 1 to overcome the elastic force of the return spring 10 and move downward, thereby driving the two rows of vertically downward-positioned punching pins 4 mounted on the pressure pin plate 2 to penetrate the upper punch through-hole 31 on the upper base plate 3, completing the punching on the metal plate. When the punching is completed, the machine tool punch moves upward and loses its force, causing the return spring 10 to rebound, driving the upper die holder 1 to move upward. The upper die holder 1 then causes the pressure pin plate 2, the upper base plate 3, and the punching pins 4 to separate from the metal plate on the ejector plate 5, thus achieving one punching operation. Because the upper die frame 1 is equipped with a limit screw 13 on the top, the guide post sleeve 11 can never completely detach from the guide post 9 and is always sleeved on the guide post 9 with the recoil spring 10. Therefore, the upper die assembly and the lower die assembly will not completely separate during each impact, which can reduce the vibration during the stamping process, make the stamping process more stable, and thus enhance the accuracy of the mesh forming process.

[0016] This high-precision integrated wire mesh forming mold has a simple structure and ingenious design. Through the structural design of the wire mesh forming mold, the ejector plate 5 is fixed to the lower mold assembly, and the upper mold assembly is not connected to the machine tool punch. The upper mold assembly and the lower mold assembly do not need to be completely separated during each impact. Through the cooperation between the guide post sleeve 11 and the guide post 9, the vibration during the stamping process can be reduced, making the stamping process more stable, thereby enhancing the accuracy of the wire mesh forming process.

[0017] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiment and the accompanying drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A high-precision integrated screen printing die, characterized by include: The assembly comprises an upper mold assembly and a lower mold assembly. The lower mold assembly includes a lower mold base, on which a lower shear plate is mounted. The lower shear plate has two rows of through holes for lower punches. A ejector plate is mounted on the lower shear plate, and on the ejector plate has two rows of ejector holes for punches. The lower mold base, lower shear plate, and ejector plate are locked together with screws. The through holes for lower punches and the ejector holes for punches are aligned vertically. Guide post seats are mounted on all four end edges of the lower mold base. Vertically upward-pointing guide posts are mounted on the guide post seats, and a back pressure spring is sleeved on the guide post. The upper mold assembly includes an upper mold base, on which a pressure pin plate is mounted at the bottom. The bottom of the pressure pin plate is equipped with an upper base plate, which has two rows of upper punch through holes. The pressure pin plate is also equipped with two rows of vertically downward-pointing punches, which extend downward after passing through the upper punch through holes on the upper base plate. Each of the four ends of the upper mold frame is equipped with a guide post sleeve that matches the guide post on the lower mold frame. The four guide post sleeves are fitted onto the four guide posts and the upper mold frame is lifted upward by four recoil springs. Each guide post sleeve has a corresponding limit screw hole at its top, and a limit screw is installed in the limit screw hole. The limit screw is locked to the top of the guide post through the limit screw hole.

2. The high-precision integrated mesh forming mold as described in claim 1, characterized in that: The lower mold frame is provided with two rows of punch through holes, which are aligned vertically with the lower punch through hole and the punch ejection through hole.

3. The high-precision integrated mesh forming mold as described in claim 1, characterized in that: The pressure plate is equipped with 120 punching pins, each with a diameter of 3mm, arranged in two parallel rows with downward spacing.

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