All-round back-off side-pushing forming die and all-round back-off side-pushing forming method

Abstract

The invention discloses an all-round back-off side-pushing forming mold and an all-round back-off side-pushing forming method. A lower mold comprises a lower mold base with a lower mold plate assembled on the top face and a storage table with side-pushing shaping blocks arranged on the periphery, side-pushing matching blocks are arranged on the outer sides of the side-pushing shaping blocks, and limiting blocks are assembled on the outer sides of the side-pushing matching blocks; the upper die comprises an upper die base provided with a stripper plate and a stripper plate at the bottom, a wedge column and a spring column are arranged perpendicular to the stripper plate, and an inner supporting block is slidably assembled at the bottom of the spring column; an inner abutting block is arranged in the middle of the bottom face of the stripper plate and matched with the inner supporting block in a guiding mode. The wedge column is in guiding fit with the side pushing matching block, and the side pushing shaping block is pushed to conduct side pushing forming on the side edge of the material in the downward pressing stroke of the upper die. Therefore, through linkage matching of all parts of the upper die and the lower die, locking and fixing of materials between the upper die and the lower die are achieved, side plate side pushing forming of the materials is achieved, only one set of die needs to be adopted, the production cost is remarkably reduced, meanwhile, machining traces possibly generated by the cutting technology do not exist, and the yield is improved.

Description

Technical Field

[0001] This invention relates to the field of mold processing technology, and in particular to a full-circumference undercut side-push forming mold and a full-circumference undercut side-push forming method. Background Technology

[0002] Currently, the aluminum alloy casings for electronic products such as tablets and laptops are often manufactured using a cutting process, which forcibly scrapes and shapes the aluminum alloy raw material. However, the cutting process has a high defect rate due to three types of defects (damage, defects, and defects), and the formed casings are prone to have obvious machining marks. This contradicts the high requirements for the appearance of electronic product casings. In addition, the edges and corners of electronic product casings often require precision machining. To reduce waste, in addition to the scraping forming master mold, multiple sets of molds are used in the processing, such as chamfering molds and waste cutting molds. This significantly increases mold-making costs and results in high production costs. Summary of the Invention

[0003] The first aspect of this embodiment discloses a full-circumference undercut side-pushing forming mold, specifically including: The lower mold is used for limiting and placing materials, and the upper mold is provided on the top of the lower mold; The lower mold includes a lower mold base, a lower template is assembled on the top surface of the lower mold base, a platform is provided in the middle of the top surface of the lower template, side-push shaping blocks are provided around the platform, side-push mating blocks are provided on the outside of the side-push shaping blocks, and a limiting block is assembled on the outside of the side-push mating blocks. The upper mold includes an upper mold base, a back plate is provided at the bottom of the upper mold base, a stripper plate is provided at the bottom of the back plate, a wedge post and a spring post are provided perpendicular to the stripper plate, and an inner support block is slidably assembled at the bottom of the spring post; An inner pressing block is provided in the middle of the bottom surface of the stripping plate. The side slope of the inner pressing block and the side slope of the inner support block guide and cooperate to limit and lock the material placed on the top surface of the platform during the downward pressing stroke of the upper mold. The inclined surface at the end of the wedge and the inclined surface at the top of the side-push mating block guide each other, and during the downward stroke of the upper mold, the protrusion of the side-push molding block pushes the material that is locked and limited to side-push molding.

[0004] As an alternative implementation, the material includes a smooth substrate and side plates perpendicular to the edges of the substrate.

[0005] As an optional implementation, during the first downward stroke of the upper mold, the bottom surface of the inner support block contacts and supports the substrate surface of the material.

[0006] As an optional implementation, during the second downward stroke of the upper mold, the bottom surface of the inner pressing block touches and presses against the substrate surface of the material, while its inclined surface pushes against the inclined surface inside the inner support block, pushing the inner support block to spread and slide. The protrusion of the inner support block abuts against the inner side of the side plate of the material, limiting and locking the material.

[0007] As an optional implementation, during the third downward stroke of the upper die, the inclined surface at the end of the wedge pusher pushes against the inclined surface of the side pusher block, causing the side pusher block to retract and slide.

[0008] As an optional implementation, the sliding side-push mating block pushes the side-push shaping block to slide and retract, and the protrusion of the side-push shaping block pushes the side of the material that is locked in a limiting position to retract.

[0009] As an optional implementation, during the fourth downward stroke of the upper mold, the side-pushing shaping block retracts and slides to its stroke limit, and its protrusion pushes the side of the material to form the shape.

[0010] As an optional implementation, during the demolding stroke of the upper mold, the side-push shaping block and the side-push mating block diffuse away from the outer side wall of the material, the inner pressing block rises away from the surface of the material, the inner support block retracts away from the inner side wall of the material, and the molded material is placed on the top surface of the platform.

[0011] The second aspect of this embodiment discloses a full-circumference undercut side-pushing forming method, specifically including: The material is placed and locked at the top of the lower mold; The upper mold presses down to resist and internally support the material; The upper mold continues to press down to drive the lower mold to push and shape the material laterally; The upper mold rises and disengages from the lower mold.

[0012] As an optional implementation, the material is placed upside down on top of the lower mold, with the upper surface of the material in contact with the upper surface of the lower mold, and the side plate of the material is perpendicular to the upper surface of the lower mold.

[0013] Compared with the prior art, this embodiment has the following beneficial effects: In this embodiment, the material between the upper and lower molds is locked and fixed by the coordinated operation of the components of the upper and lower molds, and the side plate of the material is side-push and formed. Only one set of molds is needed, which significantly reduces the production cost. At the same time, there are no machining marks that may be generated by the cutting process, and the yield rate is improved. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this embodiment, the accompanying drawings used in the embodiment will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of a full-circumference undercut side-push forming mold for placing materials, as disclosed in this embodiment. Figure 2 This is a schematic cross-sectional view of a full-circumference undercut side-push forming mold disclosed in this embodiment during the first downward stroke; Figure 3 This is a schematic cross-sectional view of a full-circumference undercut side-push forming mold disclosed in this embodiment during the second downward stroke; Figure 4 This is a schematic cross-sectional view of a full-circumference undercut side-push forming mold in the third downward stroke, as disclosed in this embodiment. Figure 5 This is a schematic cross-sectional view of a full-circumference undercut side-push forming mold in the fourth downward stroke, as disclosed in this embodiment. Figure 6 This is a cross-sectional structural diagram of a full-circumference undercut side-push forming mold in which the upper and lower molds are separated, as disclosed in this embodiment. Figure 7 This is a schematic diagram of the workflow of a full-circumference undercut side-pushing forming method disclosed in this embodiment.

[0016] The specific structural component comparison table is as follows: materials W substrate W1 Side panel W2 lower mold 1 Lower mold base 11 Download template 12 Storage table 13 Lateral push molding block 14 Side push mating block 15 Limit block 16 Upper mold 2 Upper mold base 21 Backplate 22 stripper plate 23 wedge column 24 Spring column 25 Inner support block 26 Inner pressing block 27 Detailed Implementation The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1 Please see Figures 1-6 The first aspect of this embodiment discloses a full-circumference undercut side-pushing forming mold, comprising: The lower mold is used for limiting and placing materials, and the upper mold is provided on the top of the lower mold; The lower mold includes a lower mold base, a lower template is assembled on the top surface of the lower mold base, a platform is set in the middle of the top surface of the lower template, side-push shaping blocks are set around the platform, side-push mating blocks are set on the outside of the side-push shaping blocks, and a limiting block is assembled on the outside of the side-push mating blocks. The upper mold includes an upper mold base, a stripping back plate is provided at the bottom of the upper mold base, a stripping plate is provided at the bottom of the stripping back plate, and a wedge post and a spring post are provided perpendicular to the stripping plate. An inner support block is slidably assembled at the bottom of the spring post. An inner pressing block is provided in the middle of the bottom surface of the stripper plate. The side slope of the inner pressing block and the side slope of the inner support block guide and cooperate to limit and lock the material placed on the top surface of the platform during the downward pressing stroke of the upper mold. The inclined surface at the end of the wedge column guides and engages with the inclined surface at the top of the side push block, pushing the protrusion of the side push molding block to the side of the material that is locked in place during the downward stroke of the upper mold, thus shaping it.

[0018] In this embodiment, the material between the upper and lower molds is locked and fixed by the coordinated operation of the components of the upper and lower molds, and the side plate of the material is pushed and formed.

[0019] This processing requires only one set of molds, significantly reducing production costs.

[0020] At the same time, since no cutting process is used, there are no machining marks that may be produced by the cutting process, thus improving the yield rate.

[0021] As an alternative implementation, the material includes a smooth substrate and side plates perpendicular to the edges of the substrate.

[0022] Here, the material is assembled upside down on the platform to facilitate the side plate being pushed into place in subsequent processes.

[0023] As an alternative implementation, during the first downward stroke of the upper die, the bottom surface of the inner support block contacts and supports the substrate surface of the material.

[0024] As an optional implementation, during the second downward stroke of the upper mold, the bottom surface of the inner pressing block touches and presses against the substrate surface of the material, while its inclined surface pushes against the inclined surface inside the inner support block, pushing the inner support block to spread and slide. The protrusion of the inner support block abuts against the inner side plate of the material, limiting and locking the material.

[0025] Here, during the first and second pressing strokes, the inner pressing block presses the material substrate flat against the table to ensure that the material remains flat and does not deform during processing.

[0026] Furthermore, the inner support block provides internal support to the sides of the material to limit the degree of bending of the side plate during processing and ensure that excessive deformation does not occur.

[0027] As an optional implementation, during the third downward stroke of the upper die, the inclined surface at the end of the wedge pushes the inclined surface of the side push mating block, causing the side push mating block to retract and slide.

[0028] As an optional implementation, the sliding side-push mating block pushes the side-push shaping block to slide and retract, and the protrusion of the side-push shaping block pushes the side of the material that is locked in place to retract.

[0029] Here, after the material's inner wall surface is perfectly limited, the upper mold drives the lower mold's side-pushing shaping block to perform side-pushing shaping.

[0030] As an alternative implementation, during the fourth downward stroke of the upper mold, the side-pushing shaping block retracts and slides to its stroke limit, and its protrusion pushes the material to the side to form the shape.

[0031] Here, the stroke limit of the upper die corresponds to the forming specifications of the material.

[0032] As an optional implementation, during the demolding stroke of the upper mold, the side-push shaping block and the side-push mating block spread out of the outer side wall of the material, the inner pressing block rises and detaches from the surface of the material, the inner support block retracts and detaches from the inner side wall of the material, and the molded material is placed on the top surface of the platform.

[0033] Here, as the upper mold rises and detaches, the side-pushing molding block of the lower mold also detaches from the material, and the material is placed on the platform to await retrieval.

[0034] Compared with the prior art, this embodiment has the following beneficial effects: In this embodiment, the material between the upper and lower molds is locked and fixed by the coordinated operation of the components of the upper and lower molds, and the side plate of the material is side-push and formed. Only one set of molds is needed, which significantly reduces the production cost. At the same time, there are no machining marks that may be generated by the cutting process, and the yield rate is improved.

[0035] Example 2 Please see Figure 7 The second aspect of this embodiment discloses a full-circumference undercut side-pushing forming method, comprising: a. Place the material at the top of the lower mold.

[0036] b. The upper mold is pressed down to resist and support the internal material.

[0037] c. The upper mold continues to press down to drive the lower mold to push the material sideways and form it.

[0038] d. The upper mold rises and detaches from the lower mold.

[0039] In this embodiment, only one mold and a single stroke are needed to shape the material by side pushing, without the need for multiple processing steps using multiple molds such as cutting and chamfering. This significantly improves processing efficiency, saves additional mold opening costs, and reduces production costs.

[0040] As an alternative implementation, the material is placed upside down on top of the lower mold, with the upper surface of the material in contact with the upper surface of the lower mold, and the side plate of the material is perpendicular to the upper surface of the lower mold.

Claims

1. A full-circumference undercut side-push forming mold, characterized in that, include: The lower mold is used for limiting and placing materials, and the upper mold is provided on the top of the lower mold; The lower mold includes a lower mold base, a lower template is assembled on the top surface of the lower mold base, a platform is provided in the middle of the top surface of the lower template, side-push shaping blocks are provided around the platform, side-push mating blocks are provided on the outside of the side-push shaping blocks, and a limiting block is assembled on the outside of the side-push mating blocks. The upper mold includes an upper mold base, a back plate is provided at the bottom of the upper mold base, a stripper plate is provided at the bottom of the back plate, a wedge post and a spring post are provided perpendicular to the stripper plate, and an inner support block is slidably assembled at the bottom of the spring post; An inner pressing block is provided in the middle of the bottom surface of the stripping plate. The side slope of the inner pressing block and the side slope of the inner support block guide and cooperate to limit and lock the material placed on the top surface of the platform during the downward pressing stroke of the upper mold. The inclined surface at the end of the wedge and the inclined surface at the top of the side-push mating block guide each other, and during the downward stroke of the upper mold, the protrusion of the side-push molding block pushes the material that is locked and limited to side-push molding.

2. The full-circumference undercut side-push forming mold according to claim 1, characterized in that, include: The material includes a smooth substrate and side plates perpendicular to the edges of the substrate.

3. The full-circumference undercut side-push forming mold according to claim 2, characterized in that, include: During the first downward stroke of the upper mold, the bottom surface of the inner support block touches and supports the substrate surface of the material.

4. The full-circumference undercut side-push forming mold according to claim 3, characterized in that, include: During the second downward stroke of the upper mold, the bottom surface of the inner pressing block touches and presses against the substrate surface of the material, while its inclined surface pushes against the inclined surface inside the inner support block, pushing the inner support block to spread and slide. The protrusion of the inner support block abuts against the inner side of the side plate of the material, limiting and locking the material.

5. The full-circumference undercut side-push forming mold according to claim 4, characterized in that, include: During the third downward stroke of the upper die, the inclined surface at the end of the wedge pushes against the inclined surface of the side push mating block, causing the side push mating block to retract and slide.

6. The full-circumference undercut side-push forming mold according to claim 5, characterized in that, include: The sliding side-push block pushes the side-push shaping block to slide and retract, and the protrusion of the side-push shaping block pushes the side of the material that is locked in place to retract.

7. A full-circumference undercut side-push forming mold according to claim 6, characterized in that, include: During the fourth downward stroke of the upper mold, the side-pushing shaping block retracts and slides to its stroke limit, and its protrusion pushes the side of the material to form the shape.

8. A full-circumference undercut side-push forming mold according to claim 7, characterized in that, include: During the demolding stroke of the upper mold, the side-push shaping block and the side-push mating block spread away from the outer side wall of the material, the inner pressing block rises away from the surface of the material, the inner support block retracts away from the inner side wall of the material, and the molded material is placed on the top surface of the platform.

9. A method for forming a full-circumference undercut side push, characterized in that, include: The material is placed and locked at the top of the lower mold; The upper mold presses down to resist and internally support the material; The upper mold continues to press down to drive the lower mold to push and shape the material laterally; The upper mold rises and disengages from the lower mold.

10. The full-circumference undercut side-pushing forming method according to claim 9, characterized in that, include: The material is placed upside down on the top of the lower mold, with the upper surface of the material in contact with the upper surface of the lower mold, and the side plate of the material is perpendicular to the upper surface of the lower mold.

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