3C product forming device with high bending wrap angle

By designing a 3C product forming device with upper and lower pressing and molding bent inlet blocks and molding and bent inlet blocks, the problem of insufficient material fluidity during high wrap angle processing is solved, and high precision and aesthetic molding is achieved, which improves yield and reduces production costs.

CN222830440UActive Publication Date: 2025-05-06CHIA CHANG TECHNOLOGY (SUZHOU) CO LTD
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Patent Information

Application Number
CN202420976685.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-08
Publication Date
2025-05-06
Estimated Expiration
2034-05-08

AI Technical Summary

Technical Problem

During the high-enveloping angle processing of existing 3C product molding devices, it is difficult for the material to flow fully, resulting in poor molding, poor accuracy, low aesthetics, and difficult to guarantee the yield.

Method used

A forming device with upper and lower pressure inlet blocks and molded bent inlet blocks is designed. The inner end angle of the press inlet blocks is equipped with a vertical characteristic curved surface with the same high bending angle as the 3C product, so as to realize the full flow and elastic compression of the material.

Benefits of technology

This structure ensures the fluidity of materials for high-enveloping angle processing, avoids molding deformation, improves the aesthetics and accuracy of the product, increases the yield rate, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a 3C product forming device with a high bending wrap angle. The device comprises an upper pressing part, a lower floating pressing limiting part, a pressing insert and a fixed base station, fixed forming bending insert blocks are arranged on the periphery of a forming cavity of an upper template of the upper pressing part, and an upper stripper plate floating up and down is arranged in the middle of the forming cavity; a lower stripper plate of the lower floating pressing limiting part is vertically connected to the lower part of the upper template in a sliding manner; the material pressing insert blocks are located under the forming bending insert blocks and connected to each end corner of a middle through hole of the lower stripper plate, the inner end corner of each material pressing insert block is provided with a vertical characteristic curved surface which is the same as a high bending wrap angle of a 3C product, and a male mold plate of the fixed base station and the forming cavity are vertically opposite to each other; when the wrap angle is bent and formed, the peripheral edge of the middle product is pressed by the forming and bending insert and the pressing insert. The utility model has the effects that the high-bending wrap angle is not deformed and wrinkled, the product is attractive, and the yield is high.
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Description

Technical Field

[0001] The utility model relates to a forming device for a 3C shell product, in particular to a forming device for a 3C product with a high bending angle. Background Art

[0002] At present, 3C products are widely used in daily life production, and users are increasingly pursuing superior tactile and visual experience of 3C products. For example, the end angles of 3C shell parts require high precision and exquisite appearance. The existing 3C shell molding adopts bending mold direct molding. Due to the limitation of mold structure, it is suitable for processing with the angle height of 3 to 5 times the material thickness. Its defects are: the existing structure does not meet the high angle processing. When the processing size exceeds 3 to 5 times, the part material at the angle is difficult to flow sufficiently, and the molding will wrinkle and deform. The product precision is poor, the aesthetics is low, and the product yield is difficult to guarantee. Therefore, it cannot meet customer requirements and increases production costs. Utility Model Content

[0003] In order to solve one or more of the above problems, the utility model provides a 3C product forming device with a high bending angle.

[0004] According to one aspect of the utility model, the 3C product forming device with a high bending angle comprises: an upper pressing part, a lower floating pressing limit part, a pressing block and a fixed base;

[0005] The upper pressing part includes an upper template, a forming bending block and an upper stripping plate. The forming cavity in the middle of the upper template, which is open at the bottom, is surrounded by fixed forming bending blocks and an upper stripping plate floating up and down is arranged in the middle.

[0006] The lower stripping plate of the lower floating pressing limiter is vertically slidably connected to the lower part of the upper template, and the upper part of the lower stripping plate is fixedly connected to the forming height limiter plate on all sides;

[0007] The pressing block is located directly below the forming bending block and is connected at each end corner of the middle through hole of the lower stripping plate. The inner end corner of the pressing block is provided with a vertical characteristic curved surface that is the same as the high bending angle of the 3C product.

[0008] The male mold plate of the fixed base and the molding cavity are opposite to each other up and down;

[0009] After the upper pressing part is opened, the intermediate product is placed on top of the pressing block, and the upper pressing part moves downward to fit the forming height limit plate to realize the closed forming cavity. At this time, the middle of the upper surface of the intermediate product is pressed and fixed by the upper stripping plate, and its edges are pressed by the forming bending block and the pressing block; the upper pressing part and the lower floating pressing limit part continue to move downward, and the male template can pass through the middle through hole and the limited space of the pressing block, and bend the intermediate product into the forming cavity to form the product.

[0010] In some embodiments, the four corners of the lower stripping plate are respectively provided with end corner through holes with the same cross-sectional profile as the pressing block, the inner sides of the end corner through holes are connected to the middle through hole, and a detachable pressing block is provided in the end corner through holes.

[0011] In some embodiments, the middle through hole is a rectangular through hole, and a detachable pressing block is respectively provided at the four end corners of the middle through hole.

[0012] In some embodiments, the lower back plate of the lower floating clamping limiter is fixedly connected below the lower stripping plate, and the first connecting hole of the pressing block and the lower back plate are detachably connected by threads via a first screw member.

[0013] In some embodiments, the first connecting hole is a stepped through hole, the first threaded member is a cylindrical head screw, and the first threaded member passes through the first connecting hole and is screwed into the threaded hole of the lower back plate.

[0014] In some embodiments, the press block and the male mold plate are fitted with a small clearance;

[0015] Or the pressing block is located inside the forming height limiting plate and its upper surface is slightly lower than the upper surface of the forming height limiting plate.

[0016] In some embodiments, the vertical characteristic curved surface is a rounded surface;

[0017] Or the pressing block is made of polytetrafluoroethylene or mold steel.

[0018] In some embodiments, a floating pin for positioning, lifting and bonding the intermediate product is also provided at the upper end of the lower stripping plate or the male mold plate.

[0019] In some embodiments, the molding cavity of the upper template is a groove with an open lower end or a through hole extending from top to bottom, and the upper stripping plate is inserted into the inner wall of the block with a small gap and formed by bending.

[0020] In some embodiments, the lower surface of the upper clamping plate of the upper pressing part is fixedly connected to the upper template and the forming bending block around the periphery and is floatingly connected to the upper stripping plate in the middle; an upper pad is provided above the upper clamping plate and is connected to the lower part of the upper die seat, and an upper supporting plate is connected to the upper die seat;

[0021] A male mold pad and a lower pad are provided below the male mold plate of the fixed base and are fixedly connected above the lower mold base. The lower mold base is connected to the lower supporting plate through a plurality of lower pads.

[0022] The device sets up upper and lower relative pressing blocks and forming bending blocks. The pressing blocks have the same vertical characteristic curved surface as the high bending angle of 3C products, and can elastically press the forming materials all the time. The beneficial effects are: first, the structure ensures that the end angles are elastically pressed all the time. When the high bending angle is processed, the material can also flow fully, ensuring that the high bending angle will not be deformed or wrinkled. The product is beautiful, the product precision is high, the yield rate is high, and the customer requirements are effectively met. At the same time, the high yield rate effectively reduces the production cost; second, the structure is simple, the structural changes are small, and the equipment volume is not increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a closed state of a 3C product forming device with a high bending angle according to an embodiment of the utility model;

[0024] Figure 2 for Figure 1 A schematic front view of the upper pressing portion shown;

[0025] Figure 3 for Figure 1 A schematic front view of the lower floating clamping limiter shown;

[0026] Figure 4 for Figure 3 A top view schematic diagram of the lower floating clamping limiter is shown;

[0027] Figure 5 for Figure 1 A schematic front view of the fixed base shown;

[0028] Figure 6 for Figure 1 A schematic diagram of an open state of a 3C product forming device with a high bending angle is shown;

[0029] Figure 7 for Figure 1 A schematic diagram of a material pressing state of a 3C product forming device with a high bending angle is shown;

[0030] Upper pressing part 01, upper template 1, forming cavity 100, forming bending block 2, upper stripping plate 3, upper pad 9, upper die base 10, upper support plate 11, upper clamping plate 12;

[0031] Lower floating clamping limiter 02, lower stripping plate 4, middle through hole 400, end angle through hole 401, first threaded member 5, forming height limiter plate 6;

[0032] Pressing material into block 03, vertical characteristic curved surface 030, first connecting hole 031;

[0033] Fixed base 04, male mold plate 7, lower back plate 8, lower pad 13, lower mold base 14, lower pad 15, lower support plate 16, male mold pad 17. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0035] Figures 1 to 7 The 3C product forming device with a high bending angle according to an embodiment of the utility model is schematically shown. As shown in the figure, the 3C product forming device includes: an upper pressing part 01, a lower floating pressing limit part 02, a pressing block 03 and a fixed base 04;

[0036] The upper pressing part 01 includes an upper template 1, a forming and bending block 2 and an upper stripping plate 3. The upper template 1 has an open forming cavity 100 at the bottom, which is surrounded by fixed forming and bending blocks 2 and an upper stripping plate 3 floating up and down in the middle. Preferably, the forming cavity 100 of the upper template 1 is a groove with an open lower end or a through hole passing through the upper and lower ends, and the upper stripping plate 3 slides up and down and fits against the inner wall of the forming and bending block 2 with a small gap.

[0037] The lower stripping plate 4 of the lower floating pressing limiter 02 is vertically slidably connected to the lower portion of the upper mold plate 1, and the upper portion of the lower stripping plate 4 is fixedly connected to the forming height limiter plate 6 on all sides;

[0038] The pressing entry block 03 is located directly below the forming and bending entry block 2 and is connected at each end corner of the middle through hole 400 of the lower stripping plate 4. The inner end corner of the pressing entry block 03 is provided with a vertical characteristic surface 030 which is the same as the high bending angle of the 3C product. Preferably, the vertical characteristic surface 030 is a rounded surface.

[0039] The male mold plate 7 of the fixed base 04 and the molding cavity 100 are opposite to each other up and down;

[0040] After the upper pressing part 01 is opened, the intermediate product is placed on top of the pressing block 03, and the upper pressing part 01 moves downward to fit the molding height limit plate 6 to realize the closed molding cavity 100. At this time, the middle of the upper surface of the intermediate product is pressed and fixed by the upper stripping plate 3, and its edges are pressed by the molding bending block 2 and the pressing block 03; the upper pressing part 01 and the lower floating pressing limit part 02 continue to move downward, and the male template 7 can pass through the middle through hole 400 and the limited space of the pressing block 03, and bend the intermediate product into the molding cavity 100 to form a product.

[0041] The device is provided with upper and lower opposite pressing blocks 03 and forming bending blocks 2. The pressing block 03 has a vertical characteristic curved surface 030 which is the same as the high bending angle of 3C products, and can elastically press the forming material all the time. The beneficial effects are: firstly, the structure ensures that the end angles are elastically pressed all the time. When the high bending angles are processed, the material can also flow fully, ensuring that the high bending angles will not be deformed or wrinkled. The products are beautiful, with high product precision and high yield rate, which effectively meets customer requirements. At the same time, the high yield rate effectively reduces the production cost. Secondly, the structure is simple, the structural changes are small, and the equipment volume is not increased.

[0042] Further, the four corners of the lower stripping plate 4 are respectively provided with end corner through holes 401 having the same cross-sectional profile as the material pressing block 03, the inner side of the end corner through hole 401 is connected to the middle through hole 400, and a detachable material pressing block 03 is provided in the end corner through hole 401. Preferably, the middle through hole 400 is a rectangular through hole, and a detachable material pressing block 03 is respectively provided at the four end corners of the middle through hole 400. The beneficial effect is that the setting can optimize the equipment size, can be directly modified and used in the original equipment, and the modification cost is low.

[0043] Further, the lower floating clamping limiter 02 also includes a lower back plate 8, which is fixedly connected below the lower stripping plate 4 and whose middle hole can be passed through by the male template 7, and the first connection hole 031 of the press block 03 and the lower back plate 8 are detachably connected by the first threaded member 5. Preferably, the first connection hole 031 is a stepped through hole, and the first threaded member 5 is a cylindrical head screw, and the first threaded member 5 passes through the first connection hole 031 and is screwed into the threaded hole of the lower back plate 8. The beneficial effect is that the structure is convenient for disassembly and maintenance, and is suitable for processing of various product sizes.

[0044] Preferably, the pressing material entry block 03 and the male mold plate 7 are matched with a small clearance; the small size of the inner end surface of the pressing material entry block 03 exceeds the forming bending entry block 2 and enters the forming cavity 400. Preferably, the pressing material entry block 03 is located in the forming height limit plate 6 and its upper surface is slightly lower than the upper surface of the forming height limit plate 6. The beneficial effect is that this setting can perform high-precision corner forming processing.

[0045] Preferably, the pressing material entry block 03 is made of polytetrafluoroethylene block or mold steel material. Its beneficial effect is that the device can protect the product material from being damaged and improve the product yield.

[0046] Preferably, the upper end of the lower stripping plate 4 or the male mold plate 7 is also provided with a floating pin for positioning and lifting the intermediate product.

[0047] Furthermore, the lower surface of the upper clamping plate 12 of the upper pressing part 01 is fixedly connected to the upper mold plate 1 and the forming and bending block 2 on all sides and is floatingly connected to the upper stripping plate 3 in the middle; an upper pad 9 is provided above the upper clamping plate 12 and is connected to the lower part of the upper mold base 10, and an upper support plate 11 is connected to the upper mold base 10 and its upper end is connected to the driving device; a male mold pad 17 and a lower pad 13 are provided below the male mold plate 7 of the fixed base 04 and are fixedly connected to the upper part of the lower mold base 14, and the lower part of the lower mold base 14 is connected to the lower support plate 16 through a plurality of lower pads 15.

[0048] Preferably, the lower support plate 16 is fixed below the machine base and the driving device is fixed above the machine base. The beneficial effect is that the structure can perform high-speed and fast molding processing.

[0049] Furthermore, the vertical sliding connection between the lower stripping plate 4 and the upper template 1 can be achieved by the cooperation of a guide shaft and a linear bearing. Preferably, one of the upper and lower floating connection structures involved can be realized by a compression spring structure, or by other floating structures.

[0050] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A 3C product forming device with a high bending angle, characterized in that: It comprises: an upper pressing part (01), a lower floating pressing limit part (02), a material pressing block (03) and a fixed base (04); The upper pressing part (01) comprises an upper template (1), a forming and bending entry block (2) and an upper stripping plate (3); a forming cavity (100) open at the bottom in the middle of the upper template (1) is provided with fixed forming and bending entry blocks (2) around it and an upper stripping plate (3) floating up and down in the middle; The lower stripping plate (4) of the lower floating pressing limiter (02) is vertically slidably connected to the bottom of the upper template (1), and the top of the lower stripping plate (4) is fixedly connected to the forming height limiter plate (6) on all sides; The pressing material entry block (03) is located directly below the forming and bending entry block (2) and is connected to each end corner of the middle through hole (400) of the lower stripping plate (4), and the inner end corner of the pressing material entry block (03) is provided with a vertical characteristic curved surface (030) that is the same as the high bending angle of the 3C product; The male mold plate (7) of the fixed base (04) and the molding cavity (100) are vertically opposed to each other.

2. The 3C product forming device with a high bending angle according to claim 1, characterized in that: The four corners of the lower stripping plate (4) are respectively provided with end corner through holes (401) having the same cross-sectional profile as the material pressing entry block (03); the inner sides of the end corner through holes (401) are connected to the middle through hole (400); and a detachable material pressing entry block (03) is provided in the end corner through holes (401).

3. The 3C product forming device with a high bending angle according to claim 1, characterized in that: The middle through hole (400) is a rectangular through hole, and each of the four end corners of the middle through hole (400) is provided with a detachable material pressing block (03).

4. The 3C product forming device with a high bending angle according to claim 2 or 3, characterized in that: The lower back plate (8) of the lower floating clamping limiter (02) is fixedly connected below the lower stripping plate (4), and the first connecting hole (031) of the pressing block (03) and the lower back plate (8) are detachably connected via a first threaded member (5).

5. The 3C product forming device with a high bending angle according to claim 4, characterized in that: The first connecting hole (031) is a stepped through hole, the first threaded member (5) is a cylindrical head screw, and the first threaded member (5) passes through the first connecting hole (031) and is screwed into the threaded hole of the lower back plate (8).

6. The 3C product forming device with a high bending angle according to claim 5, characterized in that: The pressing block (03) and the male mold plate (7) are matched with each other with a small clearance; Or the material pressing block (03) is located inside the forming height limiting plate (6) and its upper surface is slightly lower than the upper surface of the forming height limiting plate (6).

7. The 3C product forming device with a high bending angle according to claim 1, characterized in that: The vertical characteristic curved surface (030) is a rounded surface; Or the pressing block (03) is made of polytetrafluoroethylene or die steel.

8. The 3C product forming device with a high bending angle according to claim 1, characterized in that: The upper end of the lower stripping plate (4) or the male mold plate (7) is also provided with a floating pin for positioning and lifting the intermediate product.

9. The 3C product forming device with a high bending angle according to claim 1, characterized in that: The molding cavity (100) of the upper mold plate (1) is a groove with an open bottom end or a through hole extending from top to bottom, and the upper stripping plate (3) is inserted through the inner wall of the molding bending block (2) with a small gap.

10. The 3C product forming device with a high bending angle according to claim 1, characterized in that: The lower surface of the upper clamping plate (12) of the upper pressing part (01) is fixedly connected to the upper mold plate (1) and the forming and bending block (2) at all sides and is floatingly connected to the upper stripping plate (3) in the middle; an upper pad (9) is provided above the upper clamping plate (12) and is connected to the lower side of the upper mold base (10); an upper support plate (11) is connected to the upper mold base (10); A male mold plate (17) and a lower plate (13) are provided below the male mold plate (7) of the fixed base (04) and are fixedly connected above the lower mold base (14). The lower mold base (14) is connected to a lower support plate (16) via a plurality of lower pads (15) below.