MIC hole precision mold for FPC production

Abstract

The utility model provides an MIC hole precision mold for FPC production, and relates to the technical field of molds, the MIC hole precision mold comprises a lower base, the left side and the right side of the top of the lower base are fixedly provided with lower limiting plates; stroke pieces are fixedly mounted on the left side and the right side of the lower base; a sliding piece is mounted on the stroke piece in a sleeving and sliding manner; transmission columns of cylindrical structures are fixedly installed at the left end and the right end of the sliding piece. And a stress plate is mounted in the stroke piece in a sliding manner. The fixing structure can cancel positioning of the precision lower die and the precision upper die at the same time when the upper base is in a non-use state, workers can conveniently take down and replace the precision lower die and the precision upper die in the non-use state, and the problem that due to the fact that most dies are fixedly installed on a machining platform through a plurality of bolts, the machining efficiency is high is solved. And the die is mostly divided into an upper die and a lower die, so that when the die is replaced, a worker needs to disassemble a large number of bolts to complete the replacement of the die, and the replacement is time-consuming and labor-consuming.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a precision mold for MIC holes used in FPC production. Background Technique

[0002] FPC, also known as a flexible printed circuit board, is a printed circuit made of a flexible insulating substrate and has many advantages that rigid printed circuit boards do not have. For example, it can be freely bent, wound, and folded, and can be arranged arbitrarily according to the requirements of the space layout. When processing and producing FPC, it is necessary to punch MIC holes on the FPC for later connection or installation of a microphone, and corresponding molds are required for the processing of MIC holes on the FPC.

[0003] When the existing precision hole-opening molds are in use, due to the diversification of the FPC models produced, the molds need to be replaced according to the production requirements. However, since most of the molds are fixed and installed on the processing platform through multiple bolts, and most of the molds are divided into upper and lower molds, when replacing the molds, a large number of bolts need to be disassembled by the staff to complete the replacement of the molds, which is time-consuming and laborious. Therefore, the utility model improves a precision mold that is convenient to replace. Summary of the Invention

[0004] The embodiment of the present disclosure relates to a precision mold for MIC holes used in FPC production. By setting a lower base and an upper base, the corresponding fixing structures on the lower base and the upper base can respectively realize the fixation of the precision lower mold and the precision upper mold, so that the precision lower mold and the precision upper mold can have sufficient stability during use, and the fixing method of this precision mold is more convenient for disassembly and assembly compared with the traditional bolt fixing.

[0005] In the first aspect of the present disclosure, a precision mold for MIC holes used in FPC production is provided, which specifically includes: a lower base, with lower limit plates fixedly installed on the left and right sides of the top of the lower base; travel members fixedly installed on the left and right sides of the lower base; a sliding member sleeved and slidably installed on the travel members; transmission columns with a cylindrical structure fixedly installed at the left and right ends of the sliding member; a force-bearing plate slidably installed inside the travel members; one end of a spring A is embedded and installed inside the force-bearing plate; the other end of the spring A is embedded and installed inside the travel members; a force-bearing groove is opened on the front side of the force-bearing plate; the top end of the force-bearing groove is in an inclined structure; the transmission column is also slidably installed inside the force-bearing groove; a support frame is fixedly installed on the top of the travel members; cylindrical top push rods are fixedly installed on the left and right sides of the top of the support frame; a punching cylinder is fixedly installed at the center position of the top of the support frame; the output shaft of the punching cylinder is connected to the top of the sliding member; a limit insertion rod is fixedly installed at the inner bottom end of the force-bearing plate; the limit insertion rod is also slidably inserted inside the lower limit plate.

[0006] In at least some embodiments,

[0007] A precision lower die is placed on the top of the lower base; lower limit slots are provided on the left and right sides of the precision lower die; the lower limit plate is also clamped inside the lower limit slots; limit jacks are provided inside the lower limit slots.

[0008] In at least some embodiments,

[0009] A mold cavity is provided at the center of the top of the precision lower die; a mold hole is provided at the bottom of the mold cavity; an upper base is fixedly installed at the bottom of the sliding member; an upper limit plate is fixedly installed at the rear side of the bottom of the upper base.

[0010] In at least some embodiments,

[0011] A guide post is fixedly installed on the front side of the upper limit plate; an upper limit hole is provided at the bottom of the guide post; a precision upper die is sleeved and slidably installed on the guide post; upper limit slots are provided on the left and right sides of the rear side of the precision upper die.

[0012] In at least some embodiments,

[0013] The upper limit plate is clamped inside the upper limit slots; a guide chute is provided at the top of the precision upper die; a module is fixedly installed at the bottom of the precision upper die; a convex column is provided at the bottom of the module.

[0014] In at least some embodiments,

[0015] Shrinkage slots are provided on the left and right sides inside the precision upper die; limit insertion posts are slidably installed inside the shrinkage slots; the top ends of the limit insertion posts are in an inclined structure; one end of a spring B is embedded and installed at the bottom of the limit insertion posts.

[0016] In at least some embodiments,

[0017] The other end of the spring B is embedded and installed inside the shrinkage slots; when the precision upper die is sleeved on the guide post, the limit insertion posts will be inserted into the upper limit holes; the top push rod is located above the limit insertion posts.

[0018] The present utility model provides a precision mold for MIC holes used in FPC production, and has the following beneficial effects:

[0019] 1. In this precision mold, by providing a lower base and an upper base, and respectively providing corresponding fixing structures on the lower base and the upper base, and using the fixing structures to fix the precision lower die and the precision upper die, and the fixing structures can cancel the positioning of the precision lower die and the precision upper die at the same time when the upper base is in a non-use state, which is convenient for the staff to remove and replace the precision lower die and the precision lower die in the non-use state.

[0020] 2. Through structural improvements, the precision die has the precision lower die and the precision upper die in a non-rigid fixed state when not in use, facilitating the direct disassembly and replacement of the precision lower die and the precision upper die by the staff. When the precision upper die descends for pre-use, the precision die will automatically fix the precision lower die and the precision upper die under the action of the structure, ensuring the stability of the precision lower die and the precision upper die during normal use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings of the embodiments will be briefly introduced below.

[0022] The accompanying drawings in the following description only relate to some embodiments of the present utility model and do not limit the present utility model.

[0023] In the accompanying drawings:

[0024] Figure 1 A schematic diagram showing the overall structure of the present application is shown;

[0025] Figure 2 A schematic diagram showing the overall disassembled state structure of the present application is shown;

[0026] Figure 3 A schematic diagram showing the semi-sectional structure of the precision lower die of the present application is shown;

[0027] Figure 4 A schematic diagram showing the semi-sectional structure of the precision upper die and the upper base of the present application is shown;

[0028] Figure 5 A schematic diagram showing the structure of the precision lower die and the precision upper die of the present application is shown;

[0029] Figure 6 A schematic diagram showing another perspective structure of the present application Figure 5 is shown;

[0030] LIST OF REFERENCE NUMERALS

[0031] 1. Lower base; 2. Lower limit plate; 3. Travel member; 4. Sliding member; 5. Transmission column; 6. Force-bearing plate; 7. Spring A; 8. Force-bearing groove; 9. Support frame; 10. Thrust rod;

[0032] 11. Stamping cylinder; 12. Limit insertion rod; 13. Precision lower die; 14. Lower limit groove; 15. Limit insertion hole; 16. Mold cavity; 17. Upper base; 18. Upper limit plate; 19. Guide post; 20. Upper limit hole;

[0033] 21. Precision upper die; 22. Upper limit groove; 23. Guide sliding groove; 24. Module; 25. Shrinkage groove; 26. Limit insertion post; 27. Spring B. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0035] Please refer to Figures 1 to 6 :

[0036] Embodiment 1:

[0037] The present utility model provides a precision mold for MIC holes used in FPC production, including: a lower base 1, with lower limit plates 2 fixedly installed on the left and right sides of the top of the lower base 1; travel members 3 fixedly installed on the left and right sides of the lower base 1; a sliding member 4 sleeved and slidably installed on the travel members 3; transmission columns 5 with a cylindrical structure fixedly installed at the left and right ends of the sliding member 4; a force-receiving plate 6 slidably installed inside the travel members 3; one end of a spring A7 embedded and installed inside the inner side of the force-receiving plate 6; the other end of the spring A7 embedded and installed inside the travel members 3; a force-receiving groove 8 opened on the front side of the force-receiving plate 6; the top end of the force-receiving groove 8 is in an inclined structure; the transmission column 5 is also slidably installed inside the force-receiving groove 8; a support frame 9 fixedly installed on the top of the travel members 3; cylindrical top push rods 10 fixedly installed on the left and right sides of the top of the support frame 9; a stamping cylinder 11 fixedly installed at the center of the top of the support frame 9; the output shaft of the stamping cylinder 11 is connected to the top of the sliding member 4; a limit insertion rod 12 fixedly installed at the inner bottom end of the force-receiving plate 6; the limit insertion rod 12 is also slidably inserted inside the lower limit plate 2.

[0038] By driving the sliding member 4 and the transmission column 5 downward through the stamping cylinder 11, the sliding member 4 drives the upper base 17 and the precision upper mold 21 downward. During the downward movement, the top push rod 10 cancels the pushing force on the limit insertion column 26, so that the limit insertion column 26 is inserted into the upper limit hole 20 under the action of the spring B27, and the limit insertion column 26 stably fixes the precision upper mold 21 on the upper base 17 by inserting into the upper limit hole 20.

[0039] Embodiment 2, on the basis of Embodiment 1,

[0040] A precision lower die 13 is placed on the top of the lower base 1; lower limit slots 14 are provided on the left and right sides of the precision lower die 13; the lower limit plate 2 is also engaged inside the lower limit slots 14; limit insertion holes 15 are provided inside the lower limit slots 14; a mold cavity 16 is provided at the center position on the top of the precision lower die 13; a mold hole is provided at the bottom of the mold cavity 16; an upper base 17 is fixedly installed at the bottom of the sliding member 4; an upper limit plate 18 is fixedly installed at the rear side of the bottom of the upper base 17; a guiding post 19 is fixedly installed on the front side of the upper limit plate 18; an upper limit hole 20 is provided at the bottom of the guiding post 19; a precision upper die 21 is sleeved and slidably installed on the guiding post 19; upper limit slots 22 are provided on the left and right sides at the rear side of the precision upper die 21.

[0041] When the sliding member 4 moves downward, the transmission post 5 on the sliding member 4 will drive the force-receiving plate 6 and the limit insertion rod 12 to move inward under the inclined structure of the force-receiving slot 8, so that the limit insertion rod 12 is inserted into the limit insertion hole 15 by moving inward, and the limit insertion rod 12 stably fixes the precision lower die 13 on the lower base 1. Furthermore, the module 24 on the precision upper die 21 cooperates with the mold cavity 16 on the precision lower die 13, and a MIC hole is provided on the FPC under the action of the through hole and the convex post.

[0042] Embodiment 3, on the basis of Embodiment 2,

[0043] The upper limit plate 18 is engaged inside the upper limit slots 22; a guiding sliding slot 23 is provided on the top of the precision upper die 21; a module 24 is fixedly installed at the bottom of the precision upper die 21; a convex post is provided at the bottom of the module 24; contraction slots 25 are provided on the left and right sides inside the precision upper die 21; a limit insertion post 26 is slidably installed inside the contraction slots 25; the top end of the limit insertion post 26 is in an inclined structure; one end of a spring B 27 is embedded and installed at the bottom of the limit insertion post 26; the other end of the spring B 27 is embedded and installed inside the contraction slots 25; when the precision upper die 21 is sleeved on the guiding post 19, the limit insertion post 26 will be inserted into the upper limit hole 20; the top push rod 10 is located above the limit insertion post 26.

[0044] After the hole opening is completed, the stamping cylinder 11 is restored, which drives the upper base 17, the precision upper die 21 and the module 24 to move upward. During the movement, the limit insertion rod 12 will disengage from the limit insertion hole 15, and at the same time, the top push rod 10 will press down the limit insertion post 26 and compress it into the contraction slots 25, so that the precision lower die 13 can be disassembled by pulling upward, and the precision upper die 21 can be disassembled only by sliding forward, which is convenient for the staff to replace the precision upper die 21 and the precision lower die 13.

[0045] The working principle of this embodiment:

[0046] During use, the stamping cylinder 11 drives the sliding member 4 and the transmission column 5 to move downward, causing the sliding member 4 to drive the upper base 17 and the precision upper die 21 to move downward. During the downward movement, the ejector rod 10 will cancel the pushing force on the limit insertion post 26, causing the limit insertion post 26 to insert into the upper limit hole 20 under the action of the spring B27, so that the limit insertion post 26 stabilizes and fixes the precision upper die 21 on the upper base 17 by inserting into the upper limit hole 20. And when the sliding member 4 moves downward, the transmission column 5 on the sliding member 4 will also drive the force receiving plate 6 and the limit insertion rod 12 to move inward under the inclined structure of the force receiving groove 8, so that the limit insertion rod 12 inserts into the limit insertion hole 15 by moving inward, and the limit insertion rod 12 stabilizes and fixes the precision lower die 13 on the lower base 1. Furthermore, the module 24 on the precision upper die 21 cooperates with the cavity 16 on the precision lower die 13, and under the action of the through hole and the convex column, an MIC hole is opened on the FPC. After the opening is completed, the stamping cylinder 11 is restored, causing it to drive the upper base 17, the precision upper die 21 and the module 24 to move upward. During the upward movement, the limit insertion rod 12 will disengage from the limit insertion hole 15, and at the same time, the ejector rod 10 will press down the limit insertion post 26 and compress it into the contraction groove 25, so that the precision lower die 13 can be disassembled by pulling upward, and the precision upper die 21 can be disassembled only by sliding forward, which is convenient for the staff to replace the precision upper die 21 and the precision lower die 13.

[0047] In this article, the following points need to be noted:

[0048] 1. The attached drawings of the embodiments of the present disclosure only relate to the structures involved in the embodiments of the present disclosure, and other structures can refer to the general design.

[0049] 2. Without conflict, the embodiments of the present disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0050] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A precision mold for MIC holes in FPC production, comprising: Lower base (1), with lower limit plates (2) fixedly installed on the left and right sides of the top of the lower base (1); travel members (3) are fixedly installed on the left and right sides of the lower base (1); characterized in that a sliding member (4) is sleeved and slidably installed on the travel member (3); cylindrical transmission columns (5) are fixedly installed at the left and right ends of the sliding member (4); a stress plate (6) is slidably installed inside the travel member (3); one end of a spring A (7) is embedded and installed inside the stress plate (6); the other end of the spring A (7) is embedded and installed inside the travel member (3); a stress groove (8) is formed on the front side of the stress plate (6); the top end of the stress groove (8) is of an inclined structure; the transmission column (5) is also slidably installed inside the stress groove (8); a support frame (9) is fixedly installed on the top of the travel member (3); cylindrical top push rods (10) are fixedly installed on the left and right sides of the top of the support frame (9); a stamping cylinder (11) is fixedly installed at the center of the top of the support frame (9); the output shaft of the stamping cylinder (11) is connected to the top of the sliding member (4); a limit insertion rod (12) is fixedly installed at the inner bottom end of the stress plate (6); the limit insertion rod (12) is also slidably inserted inside the lower limit plate (2).

2. The precision mold for MIC holes used in FPC production according to claim 1, characterized in that A precision lower mold (13) is placed on the top of the lower base (1); lower limit grooves (14) are formed on the left and right sides of the precision lower mold (13); the lower limit plates (2) are also clamped inside the lower limit grooves (14); limit insertion holes (15) are formed inside the lower limit grooves (14).

3. The precision mold for MIC holes used in FPC production according to claim 2, characterized in that A mold cavity (16) is formed at the center of the top of the precision lower mold (13); a mold hole is formed at the bottom of the mold cavity (16); an upper base (17) is fixedly installed at the bottom of the sliding member (4); an upper limit plate (18) is fixedly installed at the rear side of the bottom of the upper base (17).

4. The precision mold for MIC holes used in FPC production according to claim 3, characterized in that A guiding column (19) is fixedly installed on the front side of the upper limit plate (18); an upper limit hole (20) is formed at the bottom of the guiding column (19); a precision upper mold (21) is sleeved and slidably installed on the guiding column (19); upper limit grooves (22) are formed on the left and right sides of the rear side of the precision upper mold (21).

5. The precision mold for MIC holes used in FPC production according to claim 4, characterized in that The upper limit plate (18) is clamped inside the upper limit groove (22); a guiding sliding groove (23) is formed on the top of the precision upper mold (21); a module (24) is fixedly installed at the bottom of the precision upper mold (21); a convex column is arranged at the bottom of the module (24).

6. The precision mold for MIC holes used in FPC production according to claim 5, characterized in that On the left and right sides inside the precision upper die (21), shrinkage grooves (25) are provided; a limit insertion post (26) is slidably installed inside the shrinkage groove (25); the top end of the limit insertion post (26) is of an inclined structure; one end of a spring B (27) is embedded at the bottom of the limit insertion post (26).

7. A precision mold for MIC holes used in FPC production according to claim 6, wherein The other end of the spring B (27) is embedded inside the shrinkage groove (25); when the precision upper die (21) is sleeved on the guide post (19), the limit insertion post (26) will be inserted into the upper limit hole (20); the top push rod (10) is located above the limit insertion post (26).

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