A continuous high-speed in-mold wire punching and riveting die and continuous die processing method

By integrating wire conveying, cutting and rivet pressing devices in the mold, the casting process of silver rivets is cancelled, and the problems of complex and low efficiency of traditional production processes are solved, and efficient utilization of resources and improvement of production efficiency are achieved.

CN114406146BActive Publication Date: 2024-12-17ZHEJIANG FUDA ALLOY MATERIALS TECH CO LTD
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Patent Information

Application Number
CN202210118085.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-02-08
Publication Date
2024-12-17
Estimated Expiration
2042-02-08

AI Technical Summary

Technical Problem

The production process of traditional metal hardware stamped riveting parts is complex, has a long production cycle, low efficiency, and requires a lot of labor and material resources, resulting in waste of resources.

Method used

Design a continuous high-speed die stamping and riveting mold, including wire conveying, cutting and riveting devices. Through the coordinated movement of the upper and lower dies, the wire conveying, cutting and riveting are realized, and the silver rivets are eliminated. In the casting process, the stamping mold and riveting mold are integrated into one mold to reduce the process.

Benefits of technology

Improve production efficiency, reduce costs, reduce waste of manpower and material resources, simplify mold structure, and increase product efficiency.

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Abstract

The present invention relates to a continuous high-speed in-die wire punching and riveting die, comprising one set of upper and lower dies located in the continuous die, and also comprising a wire conveying device, a wire cutting device and a wire riveting device. The wire conveying device conveys the wire upward from the lower die and passes through the rivet positioning hole opened on the stamping part on the stamping part material strip. When the upper die moves downward and approaches the lower die, the wire cutting device cuts the wire located below the stamping part, and then the wire riveting device rivets the wire to the stamping part. By adopting the above scheme, the present invention provides a continuous high-speed in-die wire punching and riveting die that improves processing efficiency and reduces manual labor.
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Description

Technical Field

[0001] The invention relates to the field of continuous dies, in particular to a continuous high-speed in-die wire punching and riveting die, and also to a continuous die processing method. Background Art

[0002] In the production process of traditional metal hardware stamping and riveting parts, such as Figure 1 As shown, it is usually done by first using a common stamping die to produce a stamping semi-finished product a, then purchasing or using a casting die to produce a silver rivet finished product b, and finally using a riveting die to rivet the stamping semi-finished product a and the silver rivet finished product b together to obtain a stamping riveted part finished product. Under this traditional processing technology, the final finished product can be obtained through three processes: stamping of the stamping semi-finished product, casting of the silver rivets, and riveting of the stamping semi-finished product with the silver rivets. The production process is complicated and the production cycle is long, the production efficiency is low, and it takes a huge labor cost to produce the product. There are also many molds and equipment used. The increase in molds and equipment also increases the cost of maintenance, and the energy and resources consumed are also greatly increased. There is a great waste in the consumption of manpower and material costs. Although some companies have developed and used in-mold riveting molds, integrating the stamping forming mold and the riveting mold in one mold, reducing some of the waste, the casting of silver rivets still requires another mold production, and there are also losses in manpower and material resources. Summary of the invention

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a continuous high-speed in-mold wire punching and riveting die which improves processing efficiency and reduces manual labor.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: it includes one set of upper and lower dies located in a continuous die, and is characterized in that it also includes a wire conveying device, a wire cutting device and a wire riveting device. The wire conveying device conveys the wire upward from the lower die and passes through the rivet positioning hole opened on the stamping part on the stamping part material strip. When the upper die moves downward and approaches the lower die, the wire cutting device cuts the wire located below the stamping part, and then the wire riveting device rivets the wire to the stamping part.

[0005] By adopting the above technical scheme, the wire is fed from the top of the lower die into the opening and closing of the upper die and the lower die, and the wire is simultaneously conveyed, cut and riveted to the rivet positioning hole of the stamping part when the die is closed, the casting process and mold of the silver rivet are cancelled, and the waste of manpower and material resources is reduced. The stamping forming mold, the silver rivet casting mold and the riveting mold are integrated into one mold. Without adding new equipment, traditional stamping equipment and feeding mechanism are used, and a new mold structure is designed and used. The original three processes are reduced to one process with almost zero increase in mold cost, which improves production efficiency, reduces costs, increases product benefits, and adds new impetus to the development of the enterprise.

[0006] The present invention is further configured as follows: the wire conveying device includes an upper clamping mechanism and a lower clamping mechanism, a movable seat is arranged below the lower die, which can move vertically relative to the lower die and can automatically return to its original position upward, and the movable seat is vertically provided with a pressure rod that passes through and partially extends above the lower die, and the upper clamping mechanism and the lower clamping mechanism are arranged from top to bottom, the upper clamping mechanism is installed on the lower die, and the lower clamping mechanism is installed on the movable seat, when the pressure rod is squeezed by the upper die, the movable seat descends, the upper clamping mechanism clamps the wire, and the lower clamping mechanism releases the wire and descends; when the movable seat returns to its original position upward, the upper clamping mechanism releases the wire, and the lower clamping mechanism clamps the wire and drives the wire to rise.

[0007] By adopting the above technical scheme, when the movable seat returns to its position upward, the upper clamping mechanism releases the wire, and the lower clamping mechanism clamps the wire and drives the wire to rise, so that the wire extends into the rivet positioning hole opened in the stamping part; when the movable seat descends, the upper clamping mechanism clamps the wire, and the lower clamping mechanism releases the wire and descends, while ensuring the stability of the riveting, the lower clamping mechanism returns to its position in time to wait for the next delivery, the descending driving force of the movable seat is transmitted by the upper die through the pressure rod, and the driving force of the upper die is reasonably used to further simplify the driving structure.

[0008] The present invention is further configured as follows: the upper clamping mechanism comprises an upper steel ball and an upper clamping rod, the lower mold is vertically provided with an upper clamping channel for the upper clamping rod to move vertically, the upper clamping rod is vertically penetrated with an upper inner hole for the wire to pass through, the upper end of the upper clamping rod is provided with an upper clamping block which is larger at the top and smaller at the bottom, the upper end of the upper clamping channel and the upper clamping block are correspondingly provided with an upper clamping portion which is larger at the top and smaller at the bottom, the upper clamping block is laterally provided with an upper steel ball channel connecting the upper inner hole and the upper clamping portion, the upper steel ball is located in the upper steel ball channel and clamps the wire under the extrusion of the inner side wall of the upper clamping portion, the lower end of the upper clamping rod is provided with an upper reset block extending to the bottom of the upper clamping channel, and the upper reset block is compressed with the lower mold and provided with an upper clamping The spring is configured to move the upper and lower ends of the camming bars to move the lower ends of the camming bars, and the lower ends of the camming bars are configured to move the upper and lower ends of the camming bars to move the lower ends of the camming bars.

[0009] By adopting the above technical scheme, when the movable seat returns upward, the upper clamping rod has a tendency to move the upper clamping block away from the upper clamping part, thereby loosening the wire, while the lower clamping rod has a tendency for the lower clamping part to approach the lower clamping block, thereby clamping the wire and conveying the wire upward by the movable seat; when the movable seat descends, the upper clamping rod has a tendency to move the upper clamping block close to the upper clamping part, thereby clamping the wire to ensure stable riveting, while the lower clamping rod has a tendency for the lower clamping part to move away from the lower clamping block, thereby loosening the wire and moving downward relative to the wire, waiting for the next conveying, and rationally utilizing the upper mold driving force, without providing an additional driving source, the clamping and loosening actions of the upper clamping mechanism and the lower clamping mechanism can be realized, thereby further simplifying the driving structure.

[0010] The present invention is further configured as follows: the upper reset block is a nut matched with the thread of the upper clamping rod, and the lower reset block is a nut matched with the thread of the lower clamping rod.

[0011] By adopting the above technical solution, the upper reset block and the lower reset block are both nuts, and the clamping force can be adjusted according to needs, thereby improving the scope of application.

[0012] The present invention is further configured as follows: the wire riveting device includes a riveting rod and an adjusting rod, the riveting rod is installed on the upper die and rises and falls with the upper die, the riveting rod moves vertically on the upper die, the lower end of the riveting rod serves as the riveting end of the wire, and the upper end serves as the adjusting end, the adjusting rod moves laterally on the upper die, one end of the adjusting rod serves as a limiting end and is wedge-matched with the adjusting end at the bottom, and the other end extends to the outside of the upper die as an operating end, the operating end is provided with a guide bolt that passes through the operating end laterally and constitutes a guide for the lateral movement of the adjusting rod, and a locking bolt that passes through the operating end vertically and fixes the adjusting rod to the upper die, and the guide bolt is provided with a limiting spring that resets the operating end to the outside of the upper die and abuts against the head of the guide bolt.

[0013] By adopting the above technical solution, the riveting end of the riveting rod rivets the wire when it descends, and the adjusting rod limits the highest position of the riveting rod when it moves laterally, thereby adapting to the riveting requirements of different products and increasing the processing range.

[0014] The present invention is further configured as follows: return bolts are respectively arranged on both sides of the movable seat, which pass through the movable seat vertically and whose upper ends are fixed to the lower mold; the lower ends of the return bolts extend to the bottom of the movable seat and are provided with return blocks; a return spring is compressed between the return block and the movable seat to return the movable seat upward.

[0015] By adopting the above technical solution, the return springs on both sides provide the movable seat with a stable upward return force, making the movable seat move more smoothly.

[0016] The present invention is further configured as follows: the wire cutting device includes a cutting pressure rod, a slider and a cutter, the slider slides laterally above the lower die, the cutter is installed on the slider, the slider is vertically penetrated with a slider inner hole for the wire to pass through, the cutter cuts the wire when the slider inner hole and the rivet positioning hole opened by the stamping part are misaligned, the lower die is provided with a cutting reset spring for restoring the slider inner hole and the rivet positioning hole opened by the stamping part to the same position after the two are misaligned, the slider and the cutting pressure rod are correspondingly provided with lateral displacement slopes, the cutting pressure rod is installed on the upper die and rises and falls with the upper die, and the cutting pressure rod squeezes the lateral displacement slope to cause the slider to slide laterally.

[0017] By adopting the above technical scheme, when closing the mold, the cutting pressure rod is installed on the upper mold and descends with the upper mold. When the side slope is extruded, the slider slides laterally, the inner hole of the slider and the rivet positioning hole opened by the stamping part are misaligned, and the cutter cuts the wire. When the mold is separated, the cutting pressure rod rises with the upper mold, and the cutting reset spring restores the inner hole of the slider and the rivet positioning hole opened by the stamping part to the position, waiting for the next wire cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a three-dimensional diagram of a stamped riveted part;

[0019] Figure 2 This is working state 1 of a specific implementation mode of the present invention;

[0020] Figure 3 for Figure 2 A magnified view of middle;

[0021] Figure 4 for Figure 2 Enlarged view of middle B;

[0022] Figure 5 This is working state 2 of a specific implementation mode of the present invention;

[0023] Figure 6 This is working state three of the specific implementation mode of the present invention;

[0024] Figure 7 Schematic diagram of the processing steps for stamping material strip. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] like Figures 2 to 4As shown, the present invention discloses a continuous high-speed in-die wire punching and riveting die, comprising one set of an upper die 1 and a lower die 2 located in the continuous die, and also comprising a wire conveying device 3, a wire cutting device 4 and a wire riveting device 5. The wire conveying device 3 conveys the wire upward from the lower die 2 and passes through the rivet positioning hole opened on the stamping part on the stamping part material strip. When the upper die 1 moves downward and approaches the lower die 2, the wire cutting device 4 cuts the wire located below the stamping part, and then the wire riveting device 5 rivets the wire to the stamping part, and the wire is fed from above the lower die 2 into the opening and closing part of the upper die 1 and the lower die 2, and the wire is riveted to the stamping part by the wire riveting device 5. The wire can be conveyed, cut and riveted to the rivet positioning hole of the stamping part at the same time when the mold is made, the casting process and mold of the silver rivet are cancelled, the waste of manpower and material resources is reduced, the stamping forming mold, the silver rivet casting mold and the riveting mold are integrated into one mold, and without adding new equipment, the traditional stamping equipment and feeding mechanism are used, and the new mold structure is designed and used. The original three processes are reduced to one process with almost zero mold cost growth, which improves production efficiency, reduces costs, increases product benefits, and adds new impetus to the development of the enterprise.

[0028] The wire feeding device 3 includes an upper clamping mechanism 32 and a lower clamping mechanism 33. A movable seat 34 is provided below the lower die 2, which is vertically movable relative to the lower die 2 and can automatically return to its original position upward. The movable seat 34 is vertically provided with a pressure rod 341 that passes through and partially extends above the lower die 2. The upper clamping mechanism 32 and the lower clamping mechanism 33 are arranged from top to bottom. The upper clamping mechanism 32 is installed on the lower die 2, and the lower clamping mechanism 33 is installed on the movable seat 34. When the pressure rod 341 is squeezed by the upper die 1, the movable seat 34 descends, the upper clamping mechanism 32 clamps the wire, and the lower clamping mechanism 33 releases the wire and descends; when the movable seat 34 returns to its original position upward, the upper clamping mechanism 32 The clamping mechanism 32 releases the wire, the lower clamping mechanism 33 clamps the wire and drives the wire to rise. When the movable seat 34 returns upward, the upper clamping mechanism 32 releases the wire, the lower clamping mechanism 33 clamps the wire and drives the wire to rise, so that the wire extends into the rivet positioning hole opened in the stamping part. When the movable seat 34 descends, the upper clamping mechanism 32 clamps the wire, the lower clamping mechanism 33 releases the wire and descends. While ensuring the stability of the pressure riveting, the lower clamping mechanism 33 returns in time to wait for the next delivery. The descending driving force of the movable seat 34 is transmitted by the upper mold 1 through the pressure rod 341. The driving force of the upper mold 1 is reasonably used to further simplify the driving structure.

[0029] The upper clamping mechanism 32 includes an upper steel ball 321 and an upper clamping rod 322. The lower mold 2 is vertically provided with an upper clamping channel 323 for the upper clamping rod 322 to move vertically. The upper clamping rod 322 is vertically penetrated with an upper inner hole 324 for the wire to pass through. The upper end of the upper clamping rod 322 is provided with an upper clamping block 325 with a larger upper portion and a smaller lower portion. The upper end of the upper clamping channel 323 is provided with an upper clamping portion 326 with a larger upper portion and a smaller lower portion corresponding to the upper clamping block 325. The upper clamping block 325 is horizontally provided with an upper steel ball channel 327 connecting the upper inner hole 324 and the upper clamping portion 326. The upper steel ball 321 is located in the upper steel ball channel 327 and is located on the inner wall of the upper clamping portion 326. The wire is clamped under extrusion, and an upper reset block 328 extending to the bottom of the upper clamping channel 323 is provided at the lower end of the upper clamping rod 322. The upper reset block 328 and the lower part of the lower mold 2 are compressed to set an upper clamping spring 329 for resetting the upper clamping rod 322 downward. The lower clamping mechanism 33 includes a lower steel ball 331 and a lower clamping rod 332. The movable seat 34 is vertically provided with a lower clamping channel 333 for the lower clamping rod 332 to move vertically. The lower clamping rod 332 is vertically penetrated with a lower inner hole 334 for the wire to pass through. The upper end of the lower clamping rod 332 is provided with a lower clamping block 335 with a larger upper part and a smaller lower part. The upper end of the lower clamping channel 333 is correspondingly provided with the lower clamping block 335 There is a lower clamping portion 336 which is larger at the top and smaller at the bottom. The lower clamping block 335 is laterally provided with a lower steel ball channel 337 which connects the lower inner hole 334 and the lower clamping portion 336. The lower steel ball 331 is located in the lower steel ball channel 337 and clamps the wire under the pressure of the inner wall of the lower clamping portion 336. The lower end of the lower clamping rod 332 is provided with a lower reset block 338 which extends to the bottom of the lower clamping channel 333. The lower reset block 338 and the lower part of the movable seat 34 are compressed to provide a lower clamping spring 339 which resets the lower clamping rod 332 downward. When the movable seat 34 returns to its position upward, the upper clamping rod 322 has a tendency to move the upper clamping block 325 away from the upper clamping portion 326, so the wire is loosened. , and the descending rod has a tendency for the lower clamping portion 336 to approach the lower clamping block 335, so the wire is clamped and the movable seat 34 conveys the wire upward; when the movable seat 34 descends, the upper clamping rod 322 has a tendency to bring the upper clamping block 325 close to the upper clamping portion 326, so the wire is clamped to ensure stable riveting, and the descending rod has a tendency for the lower clamping portion 336 to move away from the lower clamping block 335, so the wire is loosened and moved downward relative to the wire, waiting for the next conveying, and the driving force of the upper mold 1 is reasonably utilized, and the clamping and loosening actions of the upper clamping mechanism 32 and the lower clamping mechanism 33 can be realized without providing an additional driving source, so that the driving structure is further simplified.

[0030] The upper reset block 328 is a nut threadedly matched with the upper clamping rod 322, and the lower reset block 338 is a nut threadedly matched with the lower clamping rod 332. Both the upper reset block 328 and the lower reset block 338 are nuts. The clamping force can be adjusted according to needs to improve the scope of application.

[0031] The wire riveting device 5 includes a riveting rod 51 and an adjusting rod. The riveting rod 51 is installed on the upper mold 1 and rises and falls with the upper mold 1. The riveting rod 51 moves vertically on the upper mold 1. The lower end of the riveting rod 51 serves as a riveting end 511 of the wire, and the upper end serves as an adjusting end 512. The adjusting rod moves laterally on the upper mold 1. One end of the adjusting rod serves as a limiting end 521 and is wedge-matched with the adjusting end 512 at the bottom. The other end extends to the outside of the upper mold 1 as an operating end 522. The operating end 522 is provided with a plurality of The guide bolt 523 guides the lateral movement of the regulating pressure rod and the locking bolt 524 vertically passes through the operating end 522 and fixes the regulating pressure rod to the upper mold 1. The guide bolt 523 is provided with a limit spring 525 which resets the operating end 522 to the outer side of the upper mold 1 and abuts against the head of the guide bolt 523. The rivet end 511 of the rivet rod 51 rivets the wire when it descends, and the regulating pressure rod limits the highest position of the rivet rod 51 when it moves horizontally, so as to adapt to the rivet requirements of different products and improve the processing range.

[0032] Return bolts are provided on both sides of the movable seat 34, which pass through the movable seat 34 vertically and are fixed to the lower mold 2 at the upper end. The lower end of the return bolt extends to the bottom of the movable seat 34 and is provided with a return block. A return spring is compressed between the return block and the movable seat 34 to return the movable seat 34 upward. The return springs on both sides provide the movable seat 34 with a stable upward return force, so that the movable seat 34 can move more smoothly.

[0033] The wire cutting device 4 includes a cutting pressure rod 41, a slider 42 and a cutter 43. The slider 42 slides horizontally above the lower die 2. The cutter 43 is installed on the slider 42. The slider 42 is vertically penetrated with a slider inner hole 421 for the wire to pass through. When the slider inner hole 421 is misaligned with the rivet positioning hole opened by the stamping part, the cutter 43 cuts the wire. The lower die 2 is provided with a cutting reset spring 44 for restoring the alignment of the slider inner hole 421 and the rivet positioning hole opened by the stamping part after the two are misaligned. The slider 42 and the cutting pressure rod 41 are correspondingly provided with a side shift slope 422. The cutting pressure rod 41 is installed on the upper die 1 and rises and falls with the upper die 1. The cutting pressure rod 41 squeezes the side When the slope 422 is shifted, the slider 42 slides laterally. When the mold is closed, the cutting pressure rod 41 is installed on the upper mold 1 and descends with the upper mold 1. When the slope 422 is squeezed sideways, the slider 42 slides laterally, the inner hole 421 of the slider is misaligned with the rivet positioning hole opened by the stamping part, and the cutter 43 cuts the wire. When the mold is separated, the cutting pressure rod 41 rises with the upper mold 1, and the cutting reset spring 44 restores the inner hole 421 of the slider and the rivet positioning hole opened by the stamping part to the position, waiting for the next wire cutting.

[0034] The upper mold 1 includes an upper cover plate 11, an upper mold base 12, an upper pad 13, an upper clamping plate 14, a stop plate 15, and a stripper plate 16 from top to bottom. The lower mold 2 includes a lower mold plate 21, a lower pad 22, a lower mold base 23, and a lower pad 24 from top to bottom. A retreat space 17 for the stripper plate 16 and the stop plate 15 to retreat is provided below the upper clamping plate 14. The adjusting pressure rod is located between the upper pad 13 and the upper clamping plate 14. The upper clamping plate 14 is provided with a guide rod 18 that is fixed to the stripper plate 16 and can move up and down, and a guide rod spring 19 that resets the guide rod 18 downward. When the guide rod spring is stretched to a normal length, the lower end of the cutting pressure rod 41 is located below the stripper plate 16. The riveting end 511 of the rivet rod 51 is hidden in the stripper plate 16. The slider 42 and the cutter 43 are located at the lower mold plate 21, and the upper clamping mechanism 32 is located at the lower mold base 23.

[0035] When the wire stamping and riveting die is processed, the stamping material belt is stepped along the arrangement direction of the die, and the wire is fed in from the lower die. Figure 5 As shown, the upper die 1 gradually descends, the stripping plate 16 of the upper die 1 fits with the upper end surface of the lower die 2, the pressure rod 341 is squeezed by the upper die 1, the movable seat 34 descends, the upper clamping mechanism 32 clamps the wire, and the lower clamping mechanism 33 releases the wire and descends, waiting for the next conveying; Figure 6 As shown, the upper die 1 continues to descend to the lowest position, the cutting pressure rod 41 descends with the upper die 1, and the slider 42 slides laterally when the side shift slope 422 is squeezed, the inner hole 421 of the slider is misaligned with the rivet positioning hole opened by the stamping part, and the cutter 43 cuts the wire material. At the same time, the rivet rod 51 rivets the wire material to form a rivet structure; as shown in FIG. Figure 1 As shown, the upper die 1 rises, the cutting pressure rod 41 rises with the upper die 1, and the cutting reset spring 44 restores the alignment between the inner hole 421 of the slider and the rivet positioning hole opened by the stamping part, waiting for the next cutting of the wire. At the same time, the movable seat 34 returns to its position upward, the upper clamping mechanism 32 releases the wire, and the lower clamping mechanism 33 clamps the wire and drives the wire to rise, thereby realizing the transportation of the wire.

[0036] like Figure 7 As shown, when continuous die processing of stamping and riveting parts is required, the stamping parts strip is fed into the continuous stamping die through a roller feeder and is transmitted step by step along the die arrangement direction, and the wire is fed into the lower die from the pre-riveting station through a wire feeding mechanism; the stamping parts strip can be brass strip, and the wire can be silver wire;

[0037] Step 1: The stamping part material arrives at the punching hole station and punches the positioning hole;

[0038] Step 2: The stamping part material strip arrives at the scrap removal station 1, and some edge scraps are flushed away;

[0039] Step 3: The stamping part material arrives at the rivet positioning hole punching station to punch the rivet positioning holes;

[0040] Step 4: When the stamping part material arrives at the pre-riveting station, the wire material is inserted into the rivet positioning hole by using the wire stamping and riveting die, and then the wire material is cut off and pre-riveted;

[0041] Step 5: The stamped part material arrives at the rivet finishing station 1, and the pre-pressed rivet is continued to be finished for the first time;

[0042] Step 6: The stamped part material arrives at the rivet finishing station 2, and the pre-pressed rivets are continued to be finished for the second time;

[0043] Step 7: The stamping part material strip arrives at the waste removal station 2, and some edge waste is flushed away;

[0044] Step 8: The stamping part material strip arrives at the waste removal station 3, and the edge waste is completely flushed out;

[0045] Step 9: The stamping part strip arrives at the downward pre-bending station, and the first pre-bending is performed on both sides of the stamping part;

[0046] Step 10: The stamping part strip arrives at the downward bending station, and the pre-bending on both sides of the stamping part is bent into place;

[0047] Step 11: The stamping parts strip arrives at the blanking station, and the stamping parts are punched off the stamping parts strip to obtain finished products;

[0048] Step 12: The stamping material strip arrives at the tailing cutting station, and the tailing is stamped and cut off from the stamping material strip.

Claims

1. A continuous high-speed in-mold wire punching and riveting die, comprising a set of upper and lower dies located in a continuous die, characterized in that: It also includes a wire feeding device, a wire cutting device and a wire riveting device. The wire feeding device feeds the wire upward from the lower die and passes through the rivet positioning hole opened on the stamping part on the stamping part material strip. When the upper die moves downward and approaches the lower die, the wire cutting device cuts the wire located below the stamping part, and then the wire riveting device rivets the wire to the stamping part. The wire conveying device comprises an upper clamping mechanism and a lower clamping mechanism. A movable seat is arranged below the lower die, which can move vertically relative to the lower die and can automatically return upward. A pressure rod is arranged vertically on the movable seat, which passes through and partially extends above the lower die. The upper clamping mechanism and the lower clamping mechanism are arranged from top to bottom. The upper clamping mechanism is installed on the lower die, and the lower clamping mechanism is installed on the movable seat. When the pressure rod is squeezed by the upper die, the movable seat descends, the upper clamping mechanism clamps the wire, and the lower clamping mechanism releases the wire and descends; when the movable seat returns upward, the upper clamping mechanism releases the wire, and the lower clamping mechanism clamps the wire and drives the wire to rise. The upper clamping mechanism comprises an upper steel ball and an upper clamping rod, the lower mold is vertically provided with an upper clamping channel for the upper clamping rod to move vertically, the upper clamping rod is vertically penetrated with an upper inner hole for the wire to pass through, the upper end of the upper clamping rod is provided with an upper clamping block which is larger at the top and smaller at the bottom, the upper end of the upper clamping channel and the upper clamping block are correspondingly provided with an upper clamping part which is larger at the top and smaller at the bottom, the upper clamping block is laterally provided with an upper steel ball channel connecting the upper inner hole and the upper clamping part, the upper steel ball is located in the upper steel ball channel and clamps the wire under the extrusion of the inner side wall of the upper clamping part, the lower end of the upper clamping rod is provided with an upper reset block extending to the bottom of the upper clamping channel, and the upper reset block and the lower mold are compressed and provided with an upper clamping spring which resets the upper clamping rod downward. The lower end of the lower clamping rod is provided with a lower reset block extending to below the lower clamping channel, and a lower clamping spring for resetting the lower clamping rod downward is compressed between the lower reset block and the movable seat. The upper reset block is a nut matched with the thread of the upper clamping rod, and the lower reset block is a nut matched with the thread of the lower clamping rod; The wire riveting device comprises a riveting rod and an adjusting rod, wherein the riveting rod is installed on the upper die and rises and falls with the upper die, the riveting rod moves vertically on the upper die, the lower end of the riveting rod serves as the riveting end of the wire, and the upper end serves as the adjusting end, the adjusting rod moves laterally on the upper die, one end of the adjusting rod serves as a limiting end and is wedge-matched with the adjusting end at the bottom, and the other end extends to the outside of the upper die as an operating end, the operating end is provided with a guide bolt that passes through the operating end laterally and constitutes a guide for the lateral movement of the adjusting rod, and a locking bolt that passes through the operating end vertically and fixes the adjusting rod to the upper die, and the guide bolt is provided with a limit spring that resets the operating end to the outer side of the upper die and abuts against the head of the guide bolt; Return bolts are respectively arranged on both sides of the movable seat, which pass through the movable seat vertically and are fixed to the lower mold at the upper end. The lower end of the return bolt extends to the bottom of the movable seat and is provided with a return block. A return spring is compressed between the return block and the movable seat to return the movable seat upward.

2. The continuous high-speed in-mold wire punching and riveting die according to claim 1, characterized in that: The wire cutting device includes a cutting pressure rod, a slider and a cutter. The slider slides horizontally above the lower die, and the cutter is installed on the slider. The slider is vertically penetrated with a slider inner hole for the wire to pass through. When the slider inner hole and the rivet positioning hole opened by the stamping part are misaligned, the wire is cut by the cutter. The lower die is provided with a cutting reset spring for restoring the slider inner hole and the rivet positioning hole opened by the stamping part to the same position after the two are misaligned. The slider and the cutting pressure rod are correspondingly provided with lateral displacement slopes. The cutting pressure rod is installed on the upper die and rises and falls with the upper die. When the cutting pressure rod squeezes the lateral displacement slope, the slider slides horizontally.

3. A continuous die processing method using the continuous high-speed in-die wire punching and riveting die as claimed in claim 1, characterized in that: The stamping parts strip is fed into the continuous stamping die through a roller feeder and is transmitted step by step along the die arrangement direction. The wire is fed into the lower die from the pre-riveting station through a wire feeding mechanism. The stamping parts strip is made of brass and the wire is made of silver. Step 1: The stamping part material arrives at the punching hole station and punches the positioning hole; Step 2: The stamping part material strip arrives at the scrap removal station 1, and some edge scraps are flushed away; Step 3: The stamping part material arrives at the rivet positioning hole punching station to punch the rivet positioning holes; Step 4: When the stamping part material arrives at the pre-riveting station, the wire material is inserted into the rivet positioning hole by using the wire stamping and riveting die, and then the wire material is cut off and pre-riveted; Step 5: The stamped part material arrives at the rivet finishing station 1, and the pre-pressed rivet is continued to be finished for the first time; Step 6: The stamped part material arrives at the rivet finishing station 2, and the pre-pressed rivets are continued to be finished for the second time; Step 7: The stamping part material strip arrives at the waste removal station 2, and some edge waste is flushed away; Step 8: The stamping part material strip arrives at the waste removal station 3, and the edge waste is completely flushed out; Step 9: The stamping part strip arrives at the downward pre-bending station, and the first pre-bending is performed on both sides of the stamping part; Step 10: The stamping part strip arrives at the downward bending station, and the pre-bending on both sides of the stamping part is bent into place; Step 11: The stamping parts strip arrives at the blanking station, and the stamping parts are punched off the stamping parts strip to obtain finished products; Step 12: The stamping material strip arrives at the tailing cutting station, and the tailing is stamped and cut off from the stamping material strip.