Progressive die for elastic sheets
By designing the continuous shrapnel mold and using the multiple mold clamping process of the upper and lower mold components, the problems of high cost of shrapnel processing and complex steps in the prior art are solved, and the rapid continuous production of complex shrapnel is achieved, reducing costs and improving competitiveness.
Patent Information
- Application Number
- CN202421398601.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-06-18
AI Technical Summary
In the prior art, the processing cost of shrapnel is high and the processing steps are complex, making it difficult to achieve rapid and continuous production.
A continuous shrapnel die is designed, including an upper mold assembly and a lower mold assembly. Through the mold clamping process of multiple punching, shrapnel bend and hook bending, shrapnel with complex shapes and multiple bends are quickly processed.
It realizes rapid and continuous production of complex shrapnel on a single device, reducing equipment and personnel costs, thereby reducing product costs and improving product competitiveness.
Smart Images
Figure CN222919464U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of molds, in particular to a continuous die for elastic sheets. Background Art
[0002] In many electronic devices, elastic sheets are widely used, such as in application scenarios that require resilience, reset, fixation, etc. In most cases, the elastic sheet needs to be in contact with the corresponding connecting piece. After the elastic sheet undergoes elastic deformation, it can exert a force on the connecting piece in contact with it, thereby realizing the functions of resilience, reset, and fixation of the connecting piece. With the expansion of application scenarios, the requirements for elastic sheets are getting higher and higher, the elastic sheets are becoming more complex, and there are higher requirements for clamping.
[0003] In many processing devices or processing methods, the elastic sheet has many processing steps and special clamping fixtures, making it difficult to control the processing cost of the elastic sheet and easily leading to the problem of high production cost of the elastic sheet. Summary of the Utility Model
[0004] In order to solve the technical problem of high processing cost of elastic sheets in the prior art, one of the purposes of the utility model is to provide a continuous die for elastic sheets, which can continuously and quickly process elastic sheets and has a lower processing cost.
[0005] One of the purposes of the utility model is realized by adopting the following technical scheme:
[0006] A continuous die for elastic sheets includes an upper die assembly and a lower die assembly, and the upper die assembly is arranged above the lower die assembly;
[0007] The upper die assembly includes an upper die base, an upper backing plate, an upper clamping plate, a stop plate, a stripping plate, a plurality of punching upper dies, a plurality of elastic sheet bending upper dies, and a plurality of hook upper dies. The upper die base, the upper backing plate, the upper clamping plate, the stop plate, and the stripping plate are arranged in sequence from top to bottom. The plurality of punching upper dies, the plurality of hook upper dies, and the plurality of elastic sheet bending upper dies are arranged in sequence along the moving track of the strip. The upper ends of the plurality of punching upper dies, the plurality of elastic sheet bending upper dies, and the plurality of hook upper dies are arranged on the upper clamping plate;
[0008] The lower die assembly includes a lower template, a lower backing plate, a lower die base, a plurality of punching lower dies, a plurality of elastic sheet bending lower dies, and a plurality of hook lower dies. The lower template, the lower backing plate, and the lower die base are arranged in sequence from top to bottom. The plurality of punching lower dies, the plurality of hook lower dies, and the plurality of elastic sheet bending lower dies are arranged on the lower template along the moving track of the strip;
[0009] When the upper die assembly and the lower die assembly are closed for molding, a plurality of the punching upper dies and a corresponding plurality of the punching lower dies cooperate to punch the first ends of the elastic pieces, a plurality of the hook upper dies and a corresponding plurality of the hook lower dies cooperate to bend hooks at the first ends of the elastic pieces, and a plurality of the elastic piece bending upper dies and a corresponding plurality of the elastic piece bending lower dies bend the elastic pieces.
[0010] Optionally, the plurality of the elastic piece bending upper dies include a first angle bending upper die, a second angle bending upper die, a third angle bending upper die, and a fourth angle bending upper die;
[0011] The plurality of the elastic piece bending lower dies include a first angle bending lower die, a second angle bending lower die, a third angle bending lower die, and a fourth angle bending lower die;
[0012] The first angle bending upper die and the first angle bending lower die cooperate to bend the elastic piece by a first angle, the second angle bending upper die and the second angle bending lower die cooperate to bend the elastic piece by a second angle, the third angle bending upper die and the third angle bending lower die cooperate to bend the elastic piece by a third angle, and the fourth angle bending upper die and the fourth angle bending lower die cooperate to bend the elastic piece by a fourth angle.
[0013] Optionally, a corner die with a first angle is provided at the bottom of the first angle bending upper die adjacent to the forming surface;
[0014] A corner punch with a first angle is provided at the top of the first angle bending lower die adjacent to the forming surface;
[0015] A corner die with a second angle is provided at the bottom of the second angle bending upper die adjacent to the forming surface;
[0016] A corner punch with a second angle is provided at the top of the second angle bending lower die adjacent to the forming surface;
[0017] A corner die with a third angle is provided at the bottom of the third angle bending upper die adjacent to the forming surface;
[0018] A corner punch with a third angle is provided at the top of the third angle bending lower die adjacent to the forming surface;
[0019] A corner die with a fourth angle is provided at the bottom of the fourth angle bending upper die adjacent to the forming surface;
[0020] A corner punch with a fourth angle is provided at the top of the fourth angle bending lower die adjacent to the forming surface.
[0021] Optionally, the corner punch protrudes outwards, and there is a fillet between the forming surfaces;
[0022] The corner die is recessed inwards, and there is a fillet between the forming surfaces.
[0023] Optionally, the first angle is 45 degrees, the second angle is 90 degrees, the third angle is 135 degrees, and the fourth angle is 180 degrees.
[0024] Optionally, the multiple hook upper dies include multiple end bending upper dies, multiple hook bending upper dies, and multiple hook profiling upper dies. The multiple end bending upper dies, multiple hook bending upper dies, and multiple hook profiling upper dies are arranged in sequence along the traveling track of the strip for bending the hook ends, bending the whole hooks, and adjusting the hook bending in sequence.
[0025] The multiple hook lower dies include multiple end bending lower dies, multiple hook bending lower dies, and hook profiling lower dies. The multiple end bending lower dies, multiple hook bending lower dies, and multiple hook profiling lower dies are arranged in sequence along the traveling track of the strip for cooperating with the corresponding upper dies to bend the hook ends, bend the whole hooks, and adjust the hook bending in sequence.
[0026] Optionally, the multiple hook bending upper dies include a first hook bending upper die and a second hook bending upper die. The first hook bending upper die and the second hook bending upper die are distributed in sequence along the moving track of the strip for bending the hook downward and upward. The upward bending position is on the side away from the end of the downward bending position.
[0027] The multiple hook bending lower dies include a first hook bending lower die and a second hook bending lower die. The first hook bending lower die and the second hook bending lower die are distributed in sequence along the moving track of the strip for cooperating with the corresponding upper dies to bend the hook downward and upward.
[0028] Optionally, the multiple hook profiling upper dies include a first hook profiling upper die, a second hook profiling upper die, a first hook trimming upper die, and a second hook trimming upper die. The first hook profiling upper die, the second hook profiling upper die, the first hook trimming upper die, and the second hook trimming upper die are arranged along the moving track of the strip for performing two bends and two trims on the hook in sequence.
[0029] The multiple hook profiling lower dies include a first hook profiling lower die, a second hook profiling lower die, a first hook trimming lower die, and a second hook trimming lower die. The first hook profiling lower die, the second hook profiling lower die, the first hook trimming lower die, and the second hook trimming lower die are arranged along the moving track of the strip for cooperating with the corresponding upper dies to perform two bends and two trims on the hook in sequence.
[0030] Optionally, the multiple upper dies include multiple punching upper dies, multiple hook upper dies, and multiple shrapnel bending upper dies.
[0031] The spring sheet continuous mold also includes a plurality of secondary drive mechanisms, which are connected one-to-one with at least part of the upper molds. The secondary drive mechanisms drive the corresponding upper molds to move again after the film is closed and the material strip is pressed to process the spring sheets.
[0032] Optionally, the secondary drive mechanism includes a power element, a ratchet, an upper mold and a transmission mechanism, the power element is connected to the ratchet, the transmission mechanism is elastically abutted against the ratchet, and a pawl on the ratchet pushes the transmission mechanism to reciprocate.
[0033] Compared with the prior art, the beneficial effects of the present invention are:
[0034] In the embodiment of the utility model, a plurality of punching upper dies, a plurality of spring sheet bending upper dies and a plurality of hook upper dies are arranged in the upper die assembly, and a plurality of punching lower dies, a plurality of spring sheet bending lower dies and a plurality of hook lower dies are arranged in the lower die assembly. The upper die is closed with the corresponding lower die, and the forming process of the spring sheet is completed in multiple times, specifically, through multiple punching, multiple spring sheet bending and multiple hook bending, spring sheets with continuous intervals and multiple complex bends are processed on the material strip upper assembly. Complex spring sheets can be produced quickly and continuously by a single device, thereby reducing equipment costs, reducing personnel costs, and then reducing product costs, thereby improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] Figure 1 It is a side structural schematic diagram of the spring piece continuous die of the utility model;
[0036] Figure 2 It is a schematic diagram of the middle stripping plate of the spring piece continuous die of the utility model;
[0037] Figure 3 It is a schematic diagram of the terminal bending upper die and the terminal bending lower die in the spring piece continuous die of the utility model;
[0038] Figure 4 It is a schematic diagram of a hook bending upper die and a hook bending lower die in the spring piece continuous die of the utility model;
[0039] Figure 5 It is a schematic diagram of a hook-shaped upper die and a hook-shaped lower die in the spring piece continuous die of the utility model;
[0040] Figure 6 It is a schematic diagram of the spring piece bending upper die and the spring piece bending lower die in the spring piece continuous die of the utility model;
[0041] Figure 7 It is a schematic diagram of an upper die for adjusting spring pieces and a lower die for adjusting spring pieces in a spring piece continuous die of the utility model.
[0042] Description of the accompanying drawings:
[0043] 10. Upper die holder
[0044] 20. Upper backing plate
[0045] 30. Upper clamping plate
[0046] 40. Stop plate
[0047] 50. Stripping plate
[0048] 60. Punching upper die
[0049] 701. First angle bending upper die; 702. Second angle bending upper die; 703. Third angle bending upper die; 704. Fourth angle bending upper die
[0050] 801. End bending upper die; 802. Hook bending upper die; 803. Hook forming upper die
[0051] 90. Lower template
[0052] 100. Lower backing plate
[0053] 110. Lower die holder
[0054] 120. Punching lower die
[0055] 1301. First angle bending lower die; 1302. Second angle bending lower die; 1303. Third angle bending lower die; 1304. Fourth angle bending lower die
[0056] 1401. End bending lower die; 1402. Hook bending lower die; 1403. Hook forming lower die
[0057] 1501. First shrapnel adjusting upper die; 1502. Second shrapnel adjusting upper die
[0058] 1601. First shrapnel adjusting lower die; 1602. Second shrapnel adjusting lower die
[0059] 170. Secondary driving mechanism; 1701. Ratchet; 1702. Upper die; 1703. Transmission mechanism; 1704. First reset elastic member Detailed implementation manners
[0060] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the appended Figure 1 to the appended Figure 7 . It is obvious that the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present application.
[0061] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the attached drawings). If this specific posture changes, the directional indications will also change accordingly.
[0062] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.
[0063] The present utility model provides a continuous die for a shrapnel to be processed on a strip. The continuous die for the shrapnel processes the strip continuously for multiple times, so as to quickly process the shrapnel. The specific shape of the processed shrapnel is as Figure 7 shown. The shrapnel itself is bent into a U shape, and one end is provided with a hook portion. The continuous die for the shrapnel includes an upper die assembly and a lower die assembly, and the upper die assembly is arranged above the lower die assembly. As Figure 1 、 Figure 2 shown, a continuous die for a shrapnel includes an upper die assembly and a lower die assembly, and the upper die assembly is arranged above the lower die assembly.
[0064] Specifically, the upper die assembly includes an upper die base 10, an upper backing plate 20, an upper clamping plate 30, a stop plate 40, a stripper plate 50, a plurality of punching upper dies 60, a plurality of shrapnel bending upper dies and a plurality of hook portion upper dies. The upper die base 10, the upper backing plate 20, the upper clamping plate 30, the stop plate 40 and the stripper plate 50 are arranged in sequence from top to bottom. The plurality of punching upper dies 60, the plurality of hook portion upper dies and the plurality of shrapnel bending upper dies are arranged in sequence along the moving track of the strip, and the upper ends of the plurality of punching upper dies 60, the plurality of shrapnel bending upper dies and the plurality of hook portion upper dies are arranged on the upper clamping plate 30.
[0065] The lower die assembly includes a lower template 90, a lower backing plate 100, a lower die base 110, a plurality of punching lower dies 120, a plurality of shrapnel bending lower dies and a plurality of hook portion lower dies. The lower template 90, the lower backing plate 100, the lower die base 110 are arranged in sequence from top to bottom. The plurality of punching lower dies 120, the plurality of hook portion lower dies and the plurality of shrapnel bending lower dies are arranged on the lower template 90 along the moving track of the strip.
[0066] When the upper die assembly and the lower die assembly are closed for molding, a plurality of punching upper dies 60 and corresponding plurality of punching lower dies 120 cooperate to punch the first end of the elastic sheet, a plurality of hook upper dies and corresponding plurality of hook lower dies cooperate to bend a hook portion at the first end of the elastic sheet, and a plurality of elastic sheet bending upper dies and corresponding plurality of elastic sheet bending lower dies bend the elastic sheet.
[0067] In an embodiment of the present utility model, a plurality of punching upper dies 60, a plurality of elastic sheet bending upper dies and a plurality of hook upper dies are arranged on the upper die assembly, and a plurality of punching lower dies 120, a plurality of elastic sheet bending lower dies and a plurality of hook lower dies are arranged on the lower die assembly. By closing the upper die and the corresponding lower die, and completing the forming process of the elastic sheet in multiple times, specifically through multiple punching, multiple elastic sheet bending and multiple hook bending, so as to process elastic sheets with continuous intervals and multiple complex bends on the strip, and quickly and continuously produce complex elastic sheets by a single device, reduce the equipment cost, reduce the labor cost, and further reduce the product cost and improve the product competitiveness.
[0068] In some embodiments of the elastic sheet bending upper die, as Figure 6 shown, a plurality of elastic sheet bending upper dies include a first angle bending upper die 701, a second angle bending upper die 702, a third angle bending upper die 703 and a fourth angle bending upper die 704.
[0069] A plurality of elastic sheet bending lower dies include a first angle bending lower die 1301, a second angle bending lower die 1302, a third angle bending lower die 1303 and a fourth angle bending lower die 1304.
[0070] The elastic sheet bending upper die and the elastic sheet bending lower die cooperate with each other, as Figure 6 shown in Figure 6-1 , Figure 6-2 , Figure 6-3 , Figure 6-4 shown, gradually bend the elastic sheet. Specifically, the first angle bending upper die 701 and the first angle bending lower die 1301 cooperate to bend the elastic sheet by a first angle, the second angle bending upper die 702 and the second angle bending lower die 1302 cooperate to bend the elastic sheet by a second angle, the third angle bending upper die 703 and the third angle bending lower die 1303 cooperate to bend the elastic sheet by a third angle, and the fourth angle bending upper die 704 and the fourth angle bending lower die 1304 cooperate to bend the elastic sheet by a fourth angle.
[0071] The bottom of the first angle bending upper die 701 is provided with a fold angle female die whose adjacent forming surfaces form a first angle.
[0072] The top of the first angle bending lower die 1301 is provided with a fold angle male die whose adjacent forming surfaces form a first angle.
[0073] The bottom of the second angle bending upper die 702 is provided with a fold angle female die whose adjacent forming surfaces form a second angle.
[0074] The top of the second-angle bending lower die 1302 is provided with a corner punch whose adjacent forming surfaces form a second angle.
[0075] The bottom of the third-angle bending upper die 703 is provided with a corner die whose adjacent forming surfaces form a third angle.
[0076] The top of the third-angle bending lower die 1303 is provided with a corner punch whose adjacent forming surfaces form a third angle.
[0077] The bottom of the fourth-angle bending upper die 704 is provided with a corner die whose adjacent forming surfaces form a fourth angle.
[0078] The top of the fourth-angle bending lower die 1304 is provided with a corner punch whose adjacent forming surfaces form a fourth angle.
[0079] Specifically, the corner punch protrudes outward, and there are rounded corners between the forming surfaces. The corner punch is recessed inward, and there are rounded corners between the forming surfaces.
[0080] For the upper die 70 for bending the elastic sheet and the lower die 130 for bending the elastic sheet at each angle, the first angle is 45 degrees, the second angle is 90 degrees, the third angle is 135 degrees, and the fourth angle is 180 degrees, so as to gradually bend the elastic sheet.
[0081] In addition, as Figure 7 shown, in the present utility model, a plurality of elastic sheet adjusting upper dies and a plurality of elastic sheet adjusting lower dies for performing detailed adjustment are also provided. The plurality of elastic sheet adjusting upper dies include a first elastic sheet adjusting upper die 1501 and a second elastic sheet adjusting upper die 1502, and the plurality of elastic sheet adjusting lower dies include a first elastic sheet adjusting lower die 1601 and a second elastic sheet adjusting lower die 1602, namely the first elastic sheet adjusting upper die 1501, the first elastic sheet adjusting lower die 1601, the second elastic sheet adjusting upper die 1502 and the second elastic sheet adjusting lower die 1602, so as to further stabilize the shape of the elastic sheet and prevent the elastic sheet from rebounding.
[0082] In some embodiments of the hook upper die and the hook lower die, the plurality of hook upper dies include a plurality of end bending upper dies 801, a plurality of hook bending upper dies 802 and a plurality of hook shaping upper dies 803. The plurality of end bending upper dies 801, the plurality of hook bending upper dies 802 and the plurality of hook shaping upper dies 803 are arranged in sequence along the traveling track of the strip, and are used for bending the hook end, bending the whole hook and adjusting the hook bending in sequence.
[0083] The plurality of hook lower dies include a plurality of end bending lower dies 1401, a plurality of hook bending lower dies 1402 and a hook shaping lower die 1403. The plurality of end bending lower dies 1401, the plurality of hook bending lower dies 1402 and the plurality of hook shaping lower dies 1403 are arranged in sequence along the traveling track of the strip, and are used for cooperating with the corresponding upper dies to bend the hook end, bend the whole hook and adjust the hook bending in sequence.
[0084] Through multiple end-bending upper dies 801, multiple hook-bending upper dies 802, and multiple hook-forming upper dies 803, cooperating with the corresponding multiple end-bending lower dies 1401, multiple hook-bending lower dies 1402, and hook-forming lower die 1403 for forming, first gradually bend the end of the hook, then gradually bend the hook, and finally adjust the shape of the hook, thereby gradually bending the shape of the elastic sheet hook as shown in Figure 7 the figure.
[0085] In some embodiments of the hook-bending upper die 802 and the hook-bending lower die 1402, the multiple hook-bending upper dies 802 include a first hook-bending upper die 802 and a second hook-bending upper die 802. The first hook-bending upper die 802 and the second hook-bending upper die 802 are distributed in sequence along the moving trajectory of the strip, and are used to bend the hook downward and upward. The upward bending position is on the side away from the end of the downward bending position.
[0086] The multiple hook-bending lower dies 1402 include a first hook-bending lower die 1402 and a second hook-bending lower die 1402. The first hook-bending lower die 1402 and the second hook-bending lower die 1402 are distributed in sequence along the moving trajectory of the strip, and are used to cooperate with the corresponding upper die to bend the hook downward and upward.
[0087] In this embodiment, through the first hook-bending upper die 802 and the second hook-bending upper die 802, as well as the first hook-bending lower die 1402 and the second hook-bending lower die 1402, the hook is gradually bent up and down in cooperation, so that the hook has a preliminary shape.
[0088] In some embodiments of the hook-forming upper die 803 and the hook-forming lower die 1403, as shown in Figure 5 the figure, the multiple hook-forming upper dies 803 include a first hook-bending upper die, a second hook-bending upper die, a first hook-shaping upper die, and a second hook-shaping upper die. The first hook-bending upper die, the second hook-bending upper die, the first hook-shaping upper die, and the second hook-shaping upper die are arranged along the moving trajectory of the strip, and are used to perform two bends and two shape adjustments on the hook in sequence.
[0089] The multiple hook-forming lower dies 1403 include a first hook-bending lower die, a second hook-bending lower die, a first hook-shaping lower die, and a second hook-shaping lower die. The first hook-bending lower die, the second hook-bending lower die, the first hook-shaping lower die, and the second hook-shaping lower die are arranged along the moving trajectory of the strip, and are used to cooperate with the corresponding upper die to perform two bends and two shape adjustments on the hook in sequence.
[0090] In this embodiment, the overall shape of the hook is bent step by step and the shape is adjusted step by step. Through multiple step-by-step operations, the bending difficulty can be reduced, the springback can be reduced, and the forming accuracy can be improved.
[0091] In addition, as Figure 3 shown, in some embodiments of the end bending upper die 801 and the end bending lower die 1401, there is also
[0092] In the continuous wiping of the elastic piece, as Figure 2 shown, the multiple upper dies include multiple punching upper dies 60, multiple hook bending upper dies 802 and multiple elastic piece bending upper dies.
[0093] As Figure 1 shown, the elastic piece continuous die further includes a plurality of secondary driving mechanisms 170. The plurality of secondary driving mechanisms 170 are connected to at least some of the upper dies in one-to-one correspondence. The secondary driving mechanism 170 drives the corresponding upper die to act again after the die is closed and the strip is pressed to process the elastic piece.
[0094] For the secondary driving mechanism 170, specifically, as Figure 1 shown, the secondary driving mechanism 170 includes a power element, a ratchet wheel 1701, an upper die 1702 and a transmission mechanism 1703. The power element is connected to the ratchet wheel 1701. The transmission mechanism 1703 is elastically abutted against the ratchet wheel 1701. The pawl on the ratchet wheel 1701 pushes the transmission mechanism 1703 to move reciprocally. Of course, the ratchet wheel 1701 outputs power to push the transmission mechanism 1703 to move. The secondary driving mechanism 170 further includes a first reset elastic member 1704. The first reset elastic member 1704 is connected to the transmission mechanism 1703 or to the corresponding upper die 1702, and drives the transmission mechanism 1703 or the corresponding upper die 1702 to reset.
[0095] In other embodiments of some secondary driving mechanisms 170, the secondary driving mechanism 170 includes a pneumatic element and a second reset elastic member. The pneumatic element drives the upper die 1702 to descend, so that the upper die 1702 performs stamping on the elastic piece. When the pneumatic element stops outputting power, or in other words, after the stamping is completed, the second reset elastic member drives the upper die 1702 to rise.
[0096] For the first reset elastic member 1704 and the second reset elastic member, specifically, it can be a helical spring. The helical spring is connected to the upper die 1702, and drives the upper die 1702 to reset through the reset of the helical spring.
[0097] The above embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.
Claims
1. A spring sheet continuous die, characterized in that: It comprises an upper mold assembly and a lower mold assembly, wherein the upper mold assembly is arranged above the lower mold assembly; The upper die assembly comprises an upper die seat, an upper pad, an upper clamping plate, a stop plate, a stripper plate, a plurality of punching upper dies, a plurality of spring-piece bending upper dies and a plurality of hook upper dies, wherein the upper die seat, the upper pad, the upper clamping plate, the stop plate and the stripper plate are arranged in sequence from top to bottom, and the plurality of punching upper dies, the plurality of hook upper dies and the plurality of spring-piece bending upper dies are sequentially arranged along the moving track of the material belt, and the upper ends of the plurality of punching upper dies, the plurality of spring-piece bending upper dies and the plurality of hook upper dies are arranged on the upper clamping plate; The lower die assembly comprises a lower die plate, a lower pad, a lower die seat, a plurality of punching lower dies, a plurality of spring sheet bending lower dies and a plurality of hook lower dies, wherein the lower die plate, the lower pad and the lower die seat are arranged in sequence from top to bottom, and the plurality of punching lower dies, the plurality of hook lower dies and the plurality of spring sheet bending lower dies are arranged on the lower die plate along the moving track of the material strip; When the upper mold assembly and the lower mold assembly are molded together, the multiple punching upper molds and the corresponding multiple punching lower molds cooperate to punch the first end of the spring sheet, the multiple hook upper molds and the corresponding multiple hook lower molds cooperate to bend the first end of the spring sheet into a hook, and the multiple spring sheet bending upper molds and the corresponding multiple spring sheet bending lower molds bend the spring sheets.
2. The spring sheet continuous mold according to claim 1, characterized in that: The plurality of spring sheet bending upper dies include a first angle bending upper die, a second angle bending upper die, a third angle bending upper die and a fourth angle bending upper die; The plurality of spring sheet bending lower dies include a first angle bending lower die, a second angle bending lower die, a third angle bending lower die and a fourth angle bending lower die; The first angle bending upper mold and the first angle bending lower mold cooperate to bend the spring piece at a first angle, the second angle bending upper mold and the second angle bending lower mold cooperate to bend the spring piece at a second angle, the third angle bending upper mold and the third angle bending lower mold cooperate to bend the spring piece at a third angle, and the fourth angle bending upper mold and the fourth angle bending lower mold cooperate to bend the spring piece at a fourth angle.
3. The spring sheet continuous mold according to claim 2, characterized in that: The bottom of the first angle bending upper die is provided with an angled concave die with adjacent forming surfaces at a first angle; The top of the first angle bending lower die is provided with an angled convex die with adjacent forming surfaces at a first angle; The bottom of the second angle bending upper die is provided with an angled concave die with adjacent forming surfaces at a second angle; The top of the second angle bending lower die is provided with an angled convex die with an adjacent forming surface at a second angle; The bottom of the third angle bending upper die is provided with an angled concave die with adjacent forming surfaces at a third angle; The top of the third angle bending lower die is provided with an angled convex die with adjacent forming surfaces at a third angle; The bottom of the fourth angle bending upper die is provided with a folding angle concave die with adjacent forming surfaces at a fourth angle; The top of the fourth angle bending lower mold is provided with a folding angle convex mold whose adjacent forming surfaces are at a fourth angle.
4. The spring sheet continuous mold according to claim 3, characterized in that: The corner convex mold protrudes outwards, and there are rounded corners between the molding surfaces; The angled convex mold is recessed inwardly, and has rounded corners between the molding surfaces.
5. The spring sheet continuous mold according to claim 3, characterized in that: The first angle is 45 degrees, the second angle is 90 degrees, the third angle is 135 degrees, and the fourth angle is 180 degrees.
6. The spring sheet continuous mold according to claim 1, characterized in that: The plurality of hook upper dies include a plurality of end bending upper dies, a plurality of hook bending upper dies and a plurality of hook curved upper dies, and the plurality of end bending upper dies, the plurality of hook bending upper dies and the plurality of hook curved upper dies are sequentially arranged along the material belt travel track, and are used for sequentially bending the hook end, bending the hook as a whole and adjusting the hook bending; The multiple hook lower dies include multiple end bending lower dies, multiple hook bending lower dies and hook curved lower dies. The multiple end bending lower dies, multiple hook bending lower dies and multiple hook curved lower dies are arranged in sequence along the material strip travel trajectory, and are used to cooperate with the corresponding upper dies to bend the hook end, bend the hook as a whole and adjust the hook bending in sequence.
7. The spring sheet continuous mold according to claim 6, characterized in that: The plurality of hook bending upper dies include a first hook bending upper die and a second hook bending upper die, the first hook bending upper die and the second hook bending upper die are sequentially distributed along the moving track of the material strip, and are used to bend the hook downward and bend the hook upward, and the upward bending position is a side of the downward bending position away from the end; The multiple hook bending lower dies include a first hook bending lower die and a second hook bending lower die. The first hook bending lower die and the second hook bending lower die are distributed along the moving trajectory of the material strip in sequence, and are used to cooperate with the corresponding upper die to bend the hook downward and bend the hook upward.
8. The spring sheet continuous mold according to claim 6, characterized in that: The plurality of hook bending upper dies include a first hook bending upper die, a second hook bending upper die, a first hook shaping upper die and a second hook shaping upper die, wherein the first hook bending upper die, the second hook bending upper die, the first hook shaping upper die and the second hook shaping upper die are arranged along a moving track of the material strip, and are used to perform two bends and two shapings on the hook in sequence; The multiple hook bending lower dies include a first hook bending lower die, a second hook bending lower die, a first hook shaping lower die and a second hook shaping lower die. The first hook bending lower die, the second hook bending lower die, the first hook shaping lower die and the second hook shaping lower die are arranged along the moving trajectory of the material strip, and are used to cooperate with the corresponding upper die to bend and shape the hook twice in sequence.
9. The spring sheet continuous mold according to claim 1, characterized in that: The plurality of upper dies include a plurality of punching upper dies, a plurality of hook upper dies and a plurality of spring sheet bending upper dies; The spring sheet continuous mold also includes a plurality of secondary drive mechanisms, which are connected one-to-one with at least part of the upper molds. The secondary drive mechanisms drive the corresponding upper molds to move again after the film is closed and the material strip is pressed to process the spring sheets.
10. The spring sheet continuous mold according to claim 9, characterized in that: The secondary driving mechanism comprises a power element, a ratchet, an upper mold and a transmission mechanism, wherein the power element is connected to the ratchet, the transmission mechanism is elastically in contact with the ratchet, and a pawl on the ratchet pushes the transmission mechanism to move back and forth.