Secondary forming die with bending stop and material pulling function

Abstract

The utility model discloses a secondary forming die with bending stop and material pulling function, including die frame, forming die and torsion material pulling machine, the forming die and torsion material pulling machine all set up in die frame, the forming die and torsion material pulling machine are sequentially arranged along the conveying direction of material belt, and the front end of forming die is provided with the flattening mechanism and the stop distance setting mechanism. Through adopting torsion material pulling machine to material belt is pulled, and cooperate and set up flattening mechanism and stop distance setting mechanism, make material belt in the process of pulling can intermittent stop conveying, to the material belt is stamped forming big step terminal with forming die, replace traditional continuous uninterrupted feeding mode, effectively avoid product damage, the product quality of producing out is better, also need not to the circuit transformation of punch press simultaneously, make the use of die and the complexity difficulty greatly reduce, can improve the stamping speed, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of terminal manufacturing technology, and in particular to a secondary forming mold with bending stop and material pulling functions. Background Technology

[0002] Large-pitch terminals are electrical connection terminals designed for large-size wires or special connection requirements. Their core feature is a significantly larger number of terminals in the wiring hole or crimping area compared to conventional terminals, accommodating thicker wires, multi-strand wires, or scenarios requiring high heat dissipation and high current. By increasing the wiring spacing, large-pitch terminals solve problems related to thick wire connections, high-current heat dissipation, and ease of operation, and are widely used in industrial control, power distribution, and new energy fields.

[0003] Currently, large pitch terminal products are mainly formed by stamping using molds. The molds are difficult to make, and the mold length needs to be more than 1.5m. The stamping production machine needs to be a large flat machine. In addition, the large pitch terminal products have fisheye holes with a specification size of 0.65×0.20mm, which determines that a high-precision, high-speed terminal stamping machine is required.

[0004] In existing technologies, the production process of large-pitch terminal products involves continuous feeding of the material strip using a feeder on a stamping press. This method is highly susceptible to damage, resulting in poor product quality. Furthermore, using a traditional servo motor for material feeding requires circuit modifications to the stamping press, increasing the complexity and difficulty of mold usage. Therefore, it is necessary to research a solution to address these problems. Utility Model Content

[0005] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a secondary forming mold with bending stop and material pulling functions, which can effectively solve the problems of easy damage during the production of existing large-pitch terminal products or the increased use and complexity of molds due to the use of servo motors for material pulling.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A secondary forming mold with bending stop and material pulling functions includes a mold frame, a forming mold and a torque pulling machine; the forming mold and the torque pulling machine are both set on the mold frame, and the forming mold and the torque pulling machine are arranged sequentially along the conveying direction of the material strip, and the front end of the forming mold is provided with a flattening mechanism and a stop and distance fixing mechanism.

[0008] As a preferred embodiment, the flattening mechanism includes a forming part and a flattening punch. The forming part is fixed inside the lower die of the forming mold, and the flattening punch moves together with the upper die of the forming mold, and the flattening punch is located directly above the forming part.

[0009] As a preferred embodiment, the stop and distance fixing mechanism is an inverted L-shaped rod, which is fixed inside the lower mold of the forming mold and located on the side of the material strip.

[0010] As a preferred embodiment, the torque pulling machine includes a base, a torque motor, a reducer, a clutch, and a pulling ratchet. The base is fixed to the mold frame and has a pulling groove. The torque motor is fixed to the base. The reducer is mounted on the base and driven by the torque motor. The clutch is mounted on the base, and its input end is connected to the output end of the reducer via a belt mechanism. The pulling ratchet is located at the output end of the clutch and partially extends into the pulling groove.

[0011] As a preferred embodiment, the base includes a base body, a lower support plate and an upper pressure plate. The lower support plate is fixed to the base body, and the upper pressure plate is fixed to the lower support plate and forms the aforementioned material pulling groove. A through groove is provided on the lower support plate, which communicates with the material pulling groove. The material pulling ratchet partially passes through the through groove and extends into the material pulling groove.

[0012] As a preferred embodiment, the belt mechanism includes a driving pulley, a driven pulley, and a transmission belt; the driving pulley is fixed to the output end of the reducer, the driven pulley is fixed to the input end of the clutch, and the transmission belt connects the driving pulley and the driven pulley.

[0013] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0014] By using a torque-driven material feeder to pull the strip, and with the addition of a flattening mechanism and a stop-and-distance mechanism, the material strip can be intermittently stopped during the pulling process. This allows the forming die to stamp the strip into large-pitch terminals, replacing the traditional continuous feeding method. This effectively avoids product damage, produces higher-quality products, and eliminates the need for circuit modifications to the punch press. It also significantly reduces the complexity and difficulty of using the die, increases stamping speed, and improves production efficiency.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a top view of a preferred embodiment of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the stop positioning mechanism and the flattening mechanism in a preferred embodiment of the present invention;

[0018] Figure 3 This is an exploded view of the torque pulling machine in a preferred embodiment of the present invention;

[0019] Figure 4 yes Figure 3 Another perspective illustration;

[0020] Figure 5 This is a schematic diagram of the manufacturing process of the large-pitch terminal in a preferred embodiment of this utility model;

[0021] Figure 6 This is a schematic diagram of the first step in the manufacturing process of the large-pitch terminal in a preferred embodiment of this utility model;

[0022] Figure 7 This is a schematic diagram of the second step in the manufacturing process of the large-pitch terminal in a preferred embodiment of this utility model.

[0023] Explanation of reference numerals in the attached diagram:

[0024] 10. Mold frame; 20. Forming mold

[0025] 30. Torque pulling machine; 31. Machine base

[0026] 311. Seat body; 312. Lower support plate

[0027] 313, Upper pressure plate; 32, Torque motor

[0028] 33. Reducer 34. Clutch

[0029] 35. Material pulling ratchet 36. Belt mechanism

[0030] 361. Driving pulley; 362. Driven pulley

[0031] 363. Transmission belt; 301. Material feeding trough

[0032] 302, through channel 40, material strip

[0033] 41. Bending piece; 42. Large pitch terminal

[0034] 50. Flattening mechanism 51. Forming parts

[0035] 52. Flattening punch; 60. Stop and positioning mechanism. Detailed Implementation

[0036] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including a mold frame 10, a forming mold 20, and a torque pulling machine 30.

[0037] The forming mold 20 and the torque pulling machine 30 are both mounted on the mold frame 10. The forming mold 20 and the torque pulling machine 30 are arranged sequentially along the conveying direction of the material belt 40. The front end of the forming mold 20 is provided with a flattening mechanism 50 and a stop and distance fixing mechanism 60.

[0038] The torque-driven material pulling machine 30 includes a base 31, a torque motor 32, a reducer 33, a clutch 34, and a material pulling ratchet 35. The base 31 is fixed on the mold frame 10, and a material pulling groove 301 is provided on the base 31. The torque motor 32 is fixed on the base 31. The reducer 33 is located on the base 31 and is driven by the torque motor 32. The clutch 34 is located on the base 31, and the input end of the clutch 34 and the output end of the reducer 33 are connected by a belt mechanism 36. The material pulling ratchet 35 is located at the output end of the clutch 34, and the material pulling ratchet 35 extends partially into the material pulling groove 301. In this embodiment, the base 31 includes a seat 311, a lower support plate 312, and an upper pressure plate 313. The lower support plate 312 is fixed to the seat 311, and the upper pressure plate 313 is fixed to the lower support plate 312, forming the aforementioned material pulling groove 301. A through groove 302 is provided on the lower support plate 312, which communicates with the material pulling groove 301. The material pulling ratchet 35 partially passes through the through groove 302 and extends into the material pulling groove 301. Furthermore, the belt mechanism 36 includes a driving pulley 361, a driven pulley 362, and a transmission belt 363. The driving pulley 361 is fixed to the output end of the reducer 33, the driven pulley 362 is fixed to the input end of the clutch 34, and the transmission belt 363 connects the driving pulley 361 and the driven pulley 362.

[0039] The flattening mechanism 50 includes a forming part 51 and a flattening punch 52. The forming part 51 is fixed inside the lower mold of the forming mold 20, and the flattening punch 52 moves together with the upper mold of the forming mold 20, and the flattening punch 52 is located directly above the forming part 51.

[0040] The stop and distance fixing mechanism 60 is an inverted L-shaped rod. The stop and distance fixing mechanism 60 is fixed inside the lower mold of the forming mold 20 and located on the side of the material strip 40.

[0041] The working principle of this embodiment is described in detail below:

[0042] During operation, the mold is installed on the punch press. The strip 40 has a bending piece 41 for stopping and positioning. The strip 40 is electroplated material and needs to be bent and formed twice. The strip 40 passes through the forming die 20 under the pulling action of the torque pulling machine 30. When the bending piece 41 moves with the strip 40 and touches the stopping and positioning mechanism 60, the torque pulling machine 30 stops operating briefly due to obstruction. The strip 40 also stops conveying briefly at this time. Then, the forming die 20 feeds the strip 40. In the forming operation, the driving mechanism (not shown in the figure) drives the flattening punch 52 downward to move closer to the lower die of the forming die 20 to flatten the bending piece 41. After the bending piece 41 is flattened, the driving mechanism (such as a cylinder) drives the flattening punch 52 upward to reset. At this time, the torque puller 30 is blocked and contacted, and the torque puller 30 restarts, thereby driving the material strip 40 to continue to be conveyed forward. When the material strip 40 is output from the torque puller 30, a large pitch terminal 42 can be formed on the material strip 40.

[0043] The key design feature of this invention is that by using a torque-driven material feeder to pull the strip, and by setting up a flattening mechanism and a stop-and-distance mechanism, the material strip can be intermittently stopped during the pulling process. This allows the forming die to stamp the strip into large-pitch terminals, replacing the traditional continuous feeding method. This effectively avoids product damage, produces higher-quality products, and eliminates the need for circuit modifications to the punch press. It also significantly reduces the complexity and difficulty of using the die, increases stamping speed, and improves production efficiency.

[0044] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A secondary forming mold with bending stop and material pulling functions, characterized in that: It includes a mold frame, a forming mold, and a torque pulling machine; the forming mold and the torque pulling machine are both mounted on the mold frame and are arranged sequentially along the conveying direction of the material belt, and the front end of the forming mold is provided with a flattening mechanism and a stop and distance fixing mechanism.

2. The secondary forming mold with bending stop and material pulling function according to claim 1, characterized in that: The flattening mechanism includes a forming part and a flattening punch. The forming part is fixed inside the lower die of the forming mold, and the flattening punch moves together with the upper die of the forming mold, and the flattening punch is located directly above the forming part.

3. The secondary forming mold with bending stop and material pulling function according to claim 2, characterized in that: The stop and distance fixing mechanism is an inverted L-shaped rod, which is fixed inside the lower mold of the forming mold and located on the side of the material strip.

4. The secondary forming mold with bending stop and material pulling function according to claim 1, characterized in that: The torque pulling machine includes a base, a torque motor, a reducer, a clutch, and a pulling ratchet. The base is fixed to the mold frame and has a pulling groove. The torque motor is fixed to the base. The reducer is mounted on the base and driven by the torque motor. The clutch is mounted on the base, and the input end of the clutch and the output end of the reducer are connected by a belt mechanism. The pulling ratchet is located at the output end of the clutch and partially extends into the pulling groove.

5. The secondary forming mold with bending stop and material pulling function according to claim 4, characterized in that: The base includes a base body, a lower support plate and an upper pressure plate. The lower support plate is fixed to the base body, and the upper pressure plate is fixed to the lower support plate and forms the aforementioned material pulling groove. A through groove is provided on the lower support plate, which communicates with the material pulling groove. The material pulling ratchet partially passes through the through groove and extends into the material pulling groove.

6. The secondary forming mold with bending stop and material pulling function according to claim 4, characterized in that: The belt mechanism includes a driving pulley, a driven pulley, and a transmission belt; the driving pulley is fixed to the output end of the reducer, the driven pulley is fixed to the input end of the clutch, and the transmission belt connects the driving pulley and the driven pulley.

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