Elastic sheet forming die
By designing a shrapnel forming mold including multiple workstations, the problem of difficulty in bending the middle and both sides of the shrapnel at the prior art is solved, and precise bending of the shrapnel is achieved, and application needs in multiple scenarios are met.
Patent Information
- Application Number
- CN202421487254.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-27
AI Technical Summary
It is difficult for existing shrapnel molds to bend the middle and both sides of shrapnel at the same time, and cannot meet the needs of multiple scenarios.
A shrapnel forming mold including an upper mold seat and a lower mold seat is designed, and processed through the material belt channel. It is provided in turn with a guide station, a guide punching station, a silver point punching station, an upper silver point working station, a silver point middle working station, an outer cutting station, a middle bending station and a bending station on both sides to achieve accurate bending of the middle and both sides of the shrapnel.
It realizes precise bending of the middle and sides of the shrapnel, meeting the application needs of more shrapnel scenarios.
Smart Images
Figure CN222817757U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of spring pieces, in particular to a spring piece forming die. Background Art
[0002] The spring is an important component of the switch. By pressing, the electrical contacts on the spring are controlled to contact the electrical circuit, thereby controlling whether the electrical appliance is running. Springs come in a variety of shapes, the most common of which is the bending spring. Most bending springs are bent in the middle, with fewer bends on both sides. In order to meet the needs of different scenarios, a spring mold that can be bent in the middle and on both sides of the spring is urgently needed. Utility Model Content
[0003] In view of the problems existing in the above-mentioned prior art, the purpose of the present utility model is to provide a spring piece forming die, which can bend the middle part and both sides of the spring piece.
[0004] The purpose of the utility model is achieved by the following technical solutions:
[0005] A spring sheet forming mold comprises an upper die base and a lower die base, wherein the upper die base and the lower die base are covered and a material belt channel for a material belt to pass through is provided between the upper die base and the lower die base, wherein two rows and multiple columns of spring sheet units are provided on the material belt, wherein the spring sheet units are in the shape of long strips, a U-shaped hole is provided in the middle of the spring sheet units, a middle bending sheet is provided in the U-shaped hole, the symmetry axis of the U-shaped hole is parallel to the length direction of the spring sheet unit, and the material belt channel is provided with:
[0006] A guiding station, used for guiding the material strip into the material strip channel;
[0007] A guide punching station, used for punching out equidistant guide holes on both sides of the material strip, wherein the guide holes are arranged between two adjacent rows of spring sheet units;
[0008] A silver dot punching station, used for punching a silver dot hole on the spring unit, wherein the silver dot hole is arranged on one side of the U-shaped hole;
[0009] A silver dot applying station, used for applying silver dots at the positions of the silver dot holes;
[0010] A silver point centering station is used to center the silver points;
[0011] The outer cutting station is used to perform hole cutting on the material strip around the spring sheet unit. After the processing, the spring sheet units in each column are not connected, and the spring sheet units in each row are point-connected.
[0012] A middle bending station, used for bending the middle bending sheet downward;
[0013] The two-side bending station is used to bend the two sides of the U-shaped hole downward;
[0014] The finished product collection station is used to collect the finished shrapnel products.
[0015] Furthermore, guide posts are provided on both sides of the material strip channel, and positioning pieces for fixing the guide holes are provided on the inner sides of the guide posts.
[0016] Furthermore, the upper mold base includes a first base and an upper functional base arranged on the first base, and the lower mold base includes a second base and a lower functional base arranged on the second base.
[0017] Furthermore, the guiding punching station includes guiding punching positions arranged on both sides of the material strip and limiting members arranged inside the guiding punching positions, and the limiting members are used to limit the position of the spring unit.
[0018] Furthermore, the silver dot applying station includes a first silver dot position and a second silver dot position and a conveying member for the silver wire to pass through, the conveying direction of the silver wire is perpendicular to the direction of the material belt channel, the first silver dot position is located before the second silver dot position, and the silver dots are applied at the positions of the silver dot holes in two adjacent columns and different rows.
[0019] Furthermore, the silver point centering station includes a first centering position and a second centering position, and an empty step position is included between the first centering position and the second centering position.
[0020] Furthermore, at the middle bending station, the middle bending piece is bent downward at an angle of 25 to 30 degrees.
[0021] Furthermore, at the bending stations on both sides, the angle at which both sides of the U-shaped hole are bent downward is 90°.
[0022] Furthermore, the finished product collecting station includes a through hole groove provided on the lower die base, and the through hole groove allows the finished spring piece to fall out of the lower die base.
[0023] The beneficial effects of the utility model are:
[0024] After the material strip is guided into the material strip channel by the guide station, it passes through the guiding punching station, silver dot punching station, silver dot upper station, silver dot centering station, profile cutting station, middle bending station and both side bending stations in sequence. With the help of external equipment, the spring clip units are processed in sequence, and finally the finished spring clips are collected at the finished product collection station. The utility model can accurately bend the middle and both sides of the spring clip to meet the application of more scenarios of the spring clip. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is a top view of the lower die base in the utility model.
[0026] Figure 2 It is the front view of the spring piece forming mold of the utility model.
[0027] Figure 3 It is a partial structural schematic diagram of the material belt in the utility model.
[0028] Figure 4 It is a structural schematic diagram of a finished shrapnel product in the utility model.
[0029] In the figure: 1. Upper die seat; 101. First base; 102. Upper functional seat; 2. Lower die seat; 201. Second base; 202. Lower functional seat; 3. Material strip; 4. Material strip channel; 5. Shrapnel unit; 501. U-shaped hole; 502. Middle bending piece; 503. Silver dot; 504. External hole; 6. Guide station; 601. Guide rod; 7. Alignment punching station; 701. Alignment punching station; 702. Limiting piece; 8. Silver dot punching station; 9. Upper silver dot station ;901, first silver point position; 902, second silver point position; 903, conveyor; 904, silver wire; 10, silver point centering station; 1001, first centering position; 1002, second centering position; 1003, empty step position; 11, middle bending station; 12, two-side bending stations; 13, finished product collection station; 1301, through-hole groove; 14, guide hole; 15, cutting position; 16, point connection; 17, guide column; 18, positioning part; 19, buffer assembly. DETAILED DESCRIPTION
[0030] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clearly understood, the utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0031] like Figures 1 to 4 As shown, the utility model provides a spring piece forming mold, including an upper mold base 1 and a lower mold base 2, the upper mold base 1 and the lower mold base 2 are covered and a material belt channel 4 for a feeding belt 3 to pass through is provided therebetween, two rows and multiple columns of spring piece units 5 are provided on the material belt 3, the spring piece units 5 are in the shape of long strips, a U-shaped hole 501 is provided in the middle of the spring piece unit 5, a middle bending piece 502 is provided in the U-shaped hole 501, a symmetry axis of the U-shaped hole 501 is parallel to the length direction of the spring piece unit 5, and a guiding station 6, a guiding punching station 7, a silver dot punching station 8, an upper silver dot station 9, a silver dot centering station 10, an outer shape cutting station 15, a middle bending station 11, two side bending stations 12 and a finished product collection station 13 are provided in sequence on the material belt channel 4.
[0032] Specifically, the guide station 6 is used to guide the material strip 3 into the material strip channel 4; the guide punching station 7 is used to punch out equidistant guide holes 14 on both sides of the material strip 3, and the guide holes 14 are arranged between two adjacent rows of spring sheet units 5; the silver dot punching station 8 is used to punch out silver dot holes on the spring sheet unit 5, and the silver dot holes are arranged on one side of the U-shaped hole 501; the silver dot placing station 9 is used to place silver dots 503 at the silver dot hole position; the silver dot centering station 10 is used to center the silver dots 503; and the outer cutting The forming station 15 is used to cut holes in the material strip 3 on the periphery of the spring sheet unit 5. After the outer forming holes 504 are cut, each column of spring sheet units 5 are not connected, and each row of adjacent spring sheet units 5 are point-connected 16, so that the spring sheet units 5 are easy to cut; the middle bending station 11 is used to bend the middle bending sheet 502 downward; the two side bending stations 12 are used to bend the two sides of the U-shaped hole 501 downward; the finished product collection station 13 is used to collect the finished spring sheets.
[0033] In addition to the spring sheet unit 5, there are also scraps on the material strip 3. After the material strip 3 is guided into the material strip channel 4 by the guide station 6, it passes through the guide punching station 7, the silver dot punching station 8, the silver dot station 9, the silver dot centering station 10, the profile cutting station 15, the middle bending station 11 and the two side bending stations 12 in sequence, and the spring sheet unit 5 is processed in sequence with the help of external equipment, and finally the spring sheet finished product is collected at the finished product collection station 13, and the scraps are collected after the finished product collection is completed.
[0034] Furthermore, guide posts 17 are provided on both sides of the material strip channel 4, and positioning members 18 for fixing the guide holes 14 are provided on the inner sides of the guide posts 17. A large number of guide posts 17 are mainly concentrated at each station, and are used to fix the material strip 3 at the station position to be processed to ensure that the material strip 3 does not shake during processing.
[0035] Furthermore, the upper mold base 1 includes a first base 101 and an upper functional base 102 disposed on the first base 101, and the lower mold base 2 includes a second base 201 and a lower functional base 202 disposed on the second base 201. The lower mold base 2 is provided with a buffer assembly 19 in contact with the upper mold base 1, and the buffer assembly 19 is disposed at the four corners of the second base 201 to facilitate mold handling.
[0036] Furthermore, the guide station 6 includes two parallel guide rods 601 , the length direction of the guide rods 601 is consistent with the direction of the material belt channel 4 , and the material belt 3 enters the material belt channel 4 from the outside under the guiding effect.
[0037] Furthermore, the guiding punching station 7 includes guiding punching positions 701 disposed on both sides of the material strip 3 and a stopper 702 disposed inside the guiding punching position 701, and the stopper 702 is used to limit the position of the spring unit 5. The spring unit 5 is fixed at the position of the stopper 702, and the guiding punching position 701 performs a punching process on the material strip 3 to ensure that the material strip 3 does not shake during processing.
[0038] Furthermore, the silver dot placement station 9 includes a first silver dot position 901 and a second silver dot position 902 and a conveyor 903 for a silver wire 904 to pass through, and the conveying direction of the silver wire 904 is perpendicular to the direction of the material belt channel 4. The first silver dot position 901 is located before the second silver dot position 902, and silver dots 503 are placed at the positions of silver dot holes in two adjacent columns and different rows. Two silver dots 503 can be processed at the same time, which can speed up the production speed. At the same time, the first silver dot position 901 and the second silver dot position 902 are cross-set and staggered, which is convenient for processing.
[0039] Furthermore, the silver point centering station 10 includes a first centering position 1001 and a second centering position 1002 , and an empty step position 1003 is included between the first centering position 1001 and the second centering position 1002 .
[0040] At the middle bending station 11, the middle bending piece 502 is bent downward at an angle of 25 to 30°. Furthermore, at the two side bending stations 12, the two sides of the U-shaped hole 501 are bent downward at an angle of 90°.
[0041] Furthermore, the finished product collecting station 13 includes a through hole slot 1301 provided on the lower die seat 2, and the through hole slot 1301 allows the finished spring piece to fall out of the lower die seat 2. Of course, the finished product collecting station 13 should be used in conjunction with an external extrusion piece, which passes through the upper die seat 1 and squeezes the point connection 16 position between the spring piece units 5, so that the finished spring piece can easily fall off the material belt 3 and fall into the through hole slot 1301.
[0042] The upper die base 1 is provided with through holes at positions corresponding to each work station. External equipment passes through the through holes to complete the processing of the material belt 3 on the material belt channel 4, and can accurately bend the middle and both sides of the spring piece to meet more application scenarios of the spring piece.
[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall fall within the protection scope of the present invention.
Claims
1. A spring sheet forming die, characterized in that: The invention comprises an upper die base (1) and a lower die base (2), wherein the upper die base (1) and the lower die base (2) cover each other and a material belt channel (4) is provided between the upper die base (1) and the lower die base (2) for a material belt (3) to pass through; the material belt (3) is provided with two rows and multiple columns of spring sheet units (5); the spring sheet units (5) are in the shape of long strips; a U-shaped hole (501) is provided in the middle of the spring sheet unit (5); a middle bending sheet (502) is provided in the U-shaped hole (501); the symmetry axis of the U-shaped hole (501) is parallel to the length direction of the spring sheet unit (5); and the material belt channel (4) is provided with the following in sequence: A guiding station (6), used for guiding the material strip (3) into the material strip channel (4); A guide punching station (7) for punching out equidistant guide holes (14) on both sides of the material strip (3), wherein the guide holes (14) are arranged between two adjacent rows of the spring sheet units (5); A silver dot punching station (8), used for punching a silver dot hole on the spring unit (5), wherein the silver dot hole is arranged on one side of the U-shaped hole (501); A silver dot applying station (9) for applying silver dots (503) at the positions of the silver dot holes; A silver dot centering station (10) is used to perform centering processing on the silver dots (503); A cutting station (15) is used to perform hole cutting on the material strip (3) around the outer periphery of the spring sheet units (5), after which the spring sheet units (5) in each column are not connected, and adjacent spring sheet units (5) in each row are point-connected (16); A middle bending station (11) for performing a downward bending process on the middle bending sheet (502); A two-side bending station (12) for bending the two sides of the U-shaped hole (501) downwards; The finished product collecting station (13) is used to collect the finished shrapnel products.
2. A spring sheet forming mold according to claim 1, characterized in that: Guide columns (17) are provided on both sides of the material strip channel (4), and positioning pieces (18) for fixing the guide holes (14) are provided on the inner sides of the guide columns (17).
3. A spring sheet forming mold according to claim 1, characterized in that: The upper die base (1) comprises a first base (101) and an upper functional base (102) arranged on the first base (101); the lower die base (2) comprises a second base (201) and a lower functional base (202) arranged on the second base (201).
4. A spring sheet forming die according to claim 1, characterized in that: The guiding punching station (7) comprises guiding punching positions (701) arranged on both sides of the material strip (3) and a limiting member (702) arranged inside the guiding punching position (701), wherein the limiting member (702) (702) is used to limit the position of the spring unit (5).
5. The spring sheet forming mold according to claim 1, characterized in that: The silver dot applying station (9) comprises a first silver dot position (901), a second silver dot position (902) and a conveying member (903) for a silver wire (904) to pass through, wherein the conveying direction of the silver wire (904) is perpendicular to the direction of the material belt channel (4), and the first silver dot position (901) is located before the second silver dot position (902), and silver dots (503) are applied at the positions of silver dot holes in two adjacent columns and different rows.
6. The spring sheet forming mold according to claim 1, characterized in that: The silver point centering station (10) comprises a first centering position (1001) and a second centering position (1002), and an empty step position (1003) is included between the first centering position (1001) and the second centering position (1002).
7. The spring sheet forming mold according to claim 1, characterized in that: At the middle bending station (11), the middle bending piece (502) is bent downward at an angle of 25 to 30 degrees.
8. The spring sheet forming mold according to claim 1, characterized in that: At the bending stations (12) on both sides, the two sides of the U-shaped hole (501) are bent downward at an angle of 90°.
9. The spring piece forming mold according to claim 1, characterized in that: The finished product collecting station (13) comprises a through hole groove (1301) provided on the lower die base (2), and the through hole groove (1301) allows the finished spring piece to fall out of the lower die base (2).