Automobile backrest unlocking bracket progressive die

Abstract

The utility model discloses a kind of automobile backrest unlocking support progressive dies, including upper die plate, lower die plate, positioning block, first fixed plate and fourth fixed plate are equipped with several special-shaped punch, second fixed plate and third fixed plate install upper forming block and upper forming punch, first lower mould core and fourth lower mould core are equipped with several die insert, second lower mould core and third lower mould core are equipped with lower forming block, fourth lower mould core is equipped with lower shaping block, positioning block is installed to the right side of lower die plate surface, detector is installed in positioning block, avoid die to carry out empty stamping under the condition of no material tape support;By optimizing positioning block, material guiding top block and so on collaborative positioning component, reduce the positioning deviation of intermediate process, ensure the position consistency of material tape when punching, trimming and other multi-station processing, to ensure the coherence and stability of each process dimensional accuracy, reduce the scrap rate caused by positioning difference, improve the quality of automobile backrest unlocking support.

Description

Technical Field

[0001] This utility model relates to the field of continuous mold technology, specifically a continuous mold for an automobile backrest unlocking bracket. Background Technology

[0002] Progressive dies are suitable for mass production. They feed strip or ribbon material into the die through multiple die operations to produce the desired finished product. Car backrest unlocking brackets are a type of car seat component. Because progressive dies involve high-speed continuous stamping, processes such as precision punching, precision trimming, drawing, side punching, side edge trimming, and upward cutting are completed in multiple stations. These stations are designed separately. This stamping method cannot guarantee dimensional accuracy due to positioning differences in intermediate processes. Furthermore, when the strip runs out, the progressive die cannot detect it, leading to empty stamping. The lack of strip support accelerates die wear and shortens its lifespan. Utility Model Content

[0003] The purpose of this invention is to provide a continuous mold for an automotive backrest unlocking bracket to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a continuous mold for an unlocking bracket for a car backrest, comprising an upper template, wherein a first fixing plate, a second fixing plate, a third fixing plate, and a fourth fixing plate are mounted on the surface of the upper template, wherein a plurality of irregularly shaped punches are mounted on the first fixing plate and the fourth fixing plate, and an upper forming block and an upper forming punch are mounted on the second fixing plate and the third fixing plate; The lower template has a first lower mold core, a second lower mold core, a third lower mold core, and a fourth lower mold core installed on its surface. The first lower mold core and the fourth lower mold core are equipped with a plurality of concave mold inserts. The second lower mold core and the third lower mold core are each equipped with a lower forming block. The fourth lower mold core is equipped with a lower shaping block. The upper and lower templates work together to meet the processing requirements of the complex shape and dimensional accuracy of the car backrest unlocking bracket, ensuring that the stamped parts meet the design standards. This ensures stamping accuracy while also enabling high-speed production of the car backrest unlocking bracket. A positioning block is installed on the right side of the lower template surface. A detector is installed in the positioning block to detect whether the material strip has been completely stamped. When there is no material strip in the continuous mold, the continuous mold stops working in time to avoid excessive wear of the continuous mold, which helps to extend its service life and extend the maintenance cycle of the continuous mold.

[0005] Furthermore, the upper template is connected to an upper positioning plate, and the lower template is connected to a lower positioning plate. The upper and lower positioning plates are the same size. The positioning plates of the same size enable the continuous mold to be quickly and accurately installed on the press during maintenance and replacement, shortening downtime and improving the production efficiency of the backrest unlocking bracket.

[0006] Furthermore, the upper template is equipped with several buffer caps, and the lower template is equipped with several buffer springs corresponding to the buffer caps, so that the stamping process is more stable and the strip position is avoided due to excessive impact force, thereby ensuring the dimensional accuracy and quality stability of the stamped parts.

[0007] Furthermore, the upper template is equipped with several stripping hooks located on the sides of the first, second, third, and fourth fixed plates. These hooks achieve precise step-by-step positioning by gripping the side of the strip, ensuring the dimensional accuracy of the stamped workpiece. During continuous stamping, the strip needs to move at fixed step-by-step intervals; the stripping hooks prevent strip deviation or misalignment, avoiding scrap or stamping failures.

[0008] Furthermore, the first fixed plate is provided with a clearance hole, and the first lower die core is provided with a guide block corresponding to the clearance hole. The synergistic effect of the clearance hole and the guide block can effectively improve the accuracy of the material strip feeding, thereby ensuring the dimensional accuracy and quality of the stamped parts.

[0009] Furthermore, the first lower mold core, the second lower mold core, and the third lower mold core are all equipped with top blocks. The top blocks can ensure that the strip is subjected to uniform force during demolding, avoiding deformation or damage to the parts due to uneven demolding force, and also reducing wear and damage to the mold caused by forced demolding.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) By optimizing the positioning components such as positioning blocks and guide blocks, the positioning deviation of intermediate processes is reduced, and the position of the strip is consistent during multi-station processing such as punching and trimming. This ensures the continuity and stability of the dimensional accuracy of each process, reduces the scrap rate caused by positioning differences, and improves the quality of the car backrest unlocking bracket.

[0011] (2) The detector can detect whether the strip is present or whether the stamping is completed, and can monitor the strip status in real time. When the strip is used up, the detector can give a timely feedback signal to avoid the mold from performing dry stamping without the support of the strip, reduce mold wear caused by rigid collision, effectively extend the mold service life, and reduce maintenance costs and downtime.

[0012] (3) By using auxiliary structures such as stripping hooks, top blocks, and buffer devices, and with precise positioning, we can ensure that the processing, demolding, and feeding processes at each station are smooth, reduce production interruptions caused by positioning deviations or air stamping, improve the stability and production efficiency of high-speed continuous stamping, and meet the mass production needs of car backrest unlocking brackets. Attached Figure Description

[0013] Figure 1 This is a front view of the template of this utility model; Figure 2 This is a perspective view of the template of this utility model; Figure 3 This is a schematic diagram of the irregular punch of this utility model; Figure 4 This is a front view of the lower template of this utility model; Figure 5 This is a perspective view of the lower template of this utility model; Figure 6 This is a schematic diagram of the structure of the concave mold insert of this utility model; Figure 7 This is a schematic diagram of the mold-closing structure of this utility model; Figure 8 This is a schematic diagram of the structure of the car backrest unlocking bracket of this utility model.

[0014] In the diagram: 1. Upper positioning plate; 2. Upper template; 3. Buffer cap; 4. Irregular punch; 5. Clearance hole; 6. Second fixing plate; 7. Third fixing plate; 8. Fourth fixing plate; 9. Upper forming punch; 10. Stripping hook; 11. First fixing plate; 12. Lower template; 13. Buffer spring; 14. Die insert; 15. Guide ejector block; 16. Second lower die core; 17. Third lower die core; 18. Fourth lower die core; 19. Lower forming block; 20. Lower positioning plate; 21. First lower die core; 22. Positioning block; 23. Detector; 24. Upper forming block; 25. Lower shaping block; 26. Ejector block. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Please see Figure 1-7This utility model provides a technical solution: a continuous mold for an automobile backrest unlocking bracket, including an upper template 2. The surface of the upper template 2 is equipped with a first fixing plate 11, a second fixing plate 6, a third fixing plate 7, and a fourth fixing plate 8. The first fixing plate 11 and the fourth fixing plate 8 are equipped with a plurality of irregular punches 4. The second fixing plate 6 and the third fixing plate 7 are equipped with upper forming blocks 24 and upper forming punches 9, so as to realize the punching and trimming of the material strip and meet the complex forming requirements of the automobile backrest unlocking bracket. The lower template 12 has a first lower die core 21, a second lower die core 16, a third lower die core 17, and a fourth lower die core 18 mounted on its surface. The first lower die core 21 and the fourth lower die core 18 are equipped with a plurality of die inserts 14. The second lower die core 16 and the third lower die core 17 are each equipped with a lower forming block 19. The fourth lower die core 18 is equipped with a lower shaping block 25. Together with the upper template 2, the material strip can be stamped in stages. The production of the car backrest unlock bracket can be carried out in stages, avoiding concentrated stamping of the material strip, preventing stamping jamming of the material strip, and also preventing material strip wear. The continuous stamping parts on the upper template 2 and the lower template 12 are set in sections. When a certain part is damaged, it can be replaced locally. The continuous mold is simple to maintain and easy to use. Positioning block 22 is installed on the right side of the lower template 12. Detector 23 is installed in positioning block 22. Detector 23 detects whether the strip has been fully stamped. Detector 23 can be a laser rangefinder. When the strip is in the continuous mold, the laser rangefinder has a short measuring distance. When there is no strip in the continuous mold, the measuring distance is long, thus realizing the detection of the strip.

[0017] In this embodiment, as Figure 2 and Figure 5 As shown, the upper template 2 is connected to the upper positioning plate 1, and the lower template 12 is connected to the lower positioning plate 20. The upper positioning plate 1 and the lower positioning plate 20 are the same size, which can reduce the manufacturing complexity of continuous molds, improve the flexibility of production scheduling, and control the production cost of continuous molds.

[0018] In this embodiment, as Figure 2 and Figure 5 As shown, the upper template 2 is equipped with several buffer caps 3, and the lower template 12 is equipped with several buffer springs 13 corresponding to the buffer caps 3. The buffer springs 13 can be nitrogen springs. During high-speed continuous stamping, they can effectively alleviate the rigid impact force when the upper template 2 and the lower template 12 are closed, reduce vibration damage, reduce the risk of mold deformation, and the stable buffering effect can prevent the material strip from being displaced due to impact during the stamping process, thus ensuring the stability of processing at each station.

[0019] In this embodiment, as Figure 1 and Figure 2As shown, the upper template 2 is equipped with several stripping hooks 10. The stripping hooks 10 are located on the sides of the first fixing plate 11, the second fixing plate 6, the third fixing plate 7, and the fourth fixing plate 8. They are used to control the feeding distance and positioning of the material strip, ensure stamping accuracy, and maintain a stable feeding rhythm.

[0020] In this embodiment, as Figure 2 and Figure 5 As shown, the first fixed plate 11 is provided with a clearance hole 5, and the first lower mold core 21 is provided with a guide block 15 corresponding to the clearance hole 5. The clearance hole 5 provides the guide block 15 with a movable space, and the guide block 15 provides stable support and positioning for the strip, preventing the strip from deviating, twisting or jamming during feeding, ensuring that the strip passes through each processing station accurately according to the preset step distance, and providing a guarantee for the continuity of multi-station continuous processing.

[0021] In this embodiment, as Figure 4 and Figure 5 As shown, the first lower mold core 21, the second lower mold core 16, and the third lower mold core 17 are all equipped with top blocks 26. The uniform force on the top blocks 26 reduces the local stress concentration inside the first lower mold core 21, the second lower mold core 16, and the third lower mold core 17 during the demolding process, reduces the wear of the lower mold cores, and extends the overall service life of the mold.

[0022] Specifically, during use, the strip is placed in the middle of the first lower die core 21, the second lower die core 16, the third lower die core 17, and the fourth lower die core 18. The upper positioning plate 1 is connected to the stamping machine. The stamping machine drives the upper positioning plate 1 to move up and down. The irregular punch 4, the clearance hole 5, the upper forming punch 9, the stripping hook 10, and the upper forming block 24 move down to process the strip. The first lower die core 21 corresponds to the first fixed plate 11 to complete the initial punching (such as punching and trimming), and the top block 26 helps stabilize the material strip to avoid displacement during processing; The second lower mold core 16 corresponds to the second fixing plate 6, and the third lower mold core 17 corresponds to the third fixing plate 7, so as to realize the shaping and trimming of the strip. The fourth lower die core 18 corresponds to the fourth fixed plate 8, realizing the step-by-step stamping of the strip and performing final shaping of the strip to ensure dimensional accuracy; The detector 23 is aligned with the strip. When a section of the strip is completely stamped, the detector 23 detects that the fourth lower die core 18 has no strip, which provides a signal to stop the continuous die, preventing the continuous die from working without strip and preventing wear of the continuous die.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A continuous mold for unlocking a car backrest bracket, characterized in that, include: The upper template (2) is equipped with a first fixing plate (11), a second fixing plate (6), a third fixing plate (7) and a fourth fixing plate (8). The first fixing plate (11) and the fourth fixing plate (8) are equipped with a plurality of irregular punches (4). The second fixing plate (6) and the third fixing plate (7) are equipped with an upper forming block (24) and an upper forming punch (9). The lower template (12) is provided with a first lower mold core (21), a second lower mold core (16), a third lower mold core (17), and a fourth lower mold core (18). The first lower mold core (21) and the fourth lower mold core (18) are provided with a plurality of die inserts (14). The second lower mold core (16) and the third lower mold core (17) are provided with lower forming blocks (19). The fourth lower mold core (18) is provided with a lower shaping block (25). Positioning block (22) is installed on the right side of the lower template (12). A detector (23) is installed in the positioning block (22). The detector (23) detects whether the material strip has been fully stamped.

2. The progressive die for an automobile backrest unlocking bracket as claimed in claim 1, wherein: The upper template (2) is connected to the upper positioning plate (1), and the lower template (12) is connected to the lower positioning plate (20). The upper positioning plate (1) and the lower positioning plate (20) are the same size.

3. The progressive die for an automobile backrest unlocking bracket as claimed in claim 1, wherein: The upper template (2) is equipped with several buffer caps (3), and the lower template (12) is equipped with several buffer springs (13) corresponding to the buffer caps (3).

4. The progressive die for an automobile backrest unlocking bracket as claimed in claim 1, wherein: The upper template (2) is equipped with several stripping hooks (10), which are located on the sides of the first fixing plate (11), the second fixing plate (6), the third fixing plate (7), and the fourth fixing plate (8).

5. The progressive die for an automobile backrest unlocking bracket as claimed in claim 1, wherein: The first fixed plate (11) is provided with a relief hole (5), and the first lower mold core (21) is provided with a guide block (15) corresponding to the relief hole (5).

6. The progressive die for an automobile backrest unlocking bracket as claimed in claim 1, wherein: The first lower mold core (21), the second lower mold core (16), and the third lower mold core (17) are all equipped with top blocks (26).

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