A method and apparatus for avoiding slug generation

Abstract

The application is a kind of thickening device and method for avoiding drumming, belonging to the field of shell material processing. The first driving element and the second driving element can ensure that the upper die assembly and the lower die assembly extrude the top and bottom of the workpiece to be processed. The first driving element cooperates with the side wall thickening assembly to extrude the side wall of the workpiece to be processed, so as to fix the workpiece to be processed. Then, the side wall thickening assembly can uniformly extrude the side wall of the workpiece under the driving of the second driving element, so that the thickness of the side wall of the workpiece gradually increases, thereby improving the strength and stability of the workpiece. The pressure assembly can increase the clamping force of the upper die assembly and the lower die assembly on the workpiece to be processed. The protrusion can increase the friction between the lower die assembly and the workpiece to be processed, thereby avoiding the drumming phenomenon of the workpiece to be processed when the side wall of the workpiece to be processed is thickened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shell material processing, and more particularly to an extrusion thickening device and method capable of avoiding drumming. BACKGROUND

[0002] With the continuous progress of society and the continuous development of communication technology, the application of notebook computers and mobile phones is becoming more and more common, and people's requirements for notebook computers are also increasing. At present, the side walls of the traditional notebook computer shell and mobile phone shell mostly need to be extruded thickened. During the extrusion thickening process, the clamping force of the lower die assembly and the upper die assembly may be insufficient to clamp the product, thereby causing drumming phenomenon on the shell, resulting in unqualified parts, which may need to be reprocessed or scrapped, thereby increasing the material cost. SUMMARY

[0003] The technical problem to be solved by the present application is that during the extrusion thickening process, the clamping force of the lower die assembly and the upper die assembly may be insufficient to clamp the product, thereby causing drumming phenomenon on the shell, resulting in unqualified parts, which may need to be reprocessed or scrapped, thereby increasing the material cost. In view of the above defects of the prior art, an extrusion thickening device and method capable of avoiding drumming are provided.

[0004] The technical scheme adopted by the present application to solve the technical problem is:

[0005] A lower die assembly of an extrusion thickening device capable of avoiding drumming is constructed. The lower die assembly comprises a pressing assembly arranged at the bottom of the lower die assembly for applying an upward jacking force to the lower die assembly, and a protruding portion arranged at the top of the lower die assembly for increasing the friction between the lower die assembly and the workpiece to be processed.

[0006] An upper die assembly comprises a first driving member arranged above the upper die assembly, the first driving member being used to drive the upper die assembly to displace towards the lower die assembly and clamp the top and bottom of the workpiece to be processed in cooperation with the lower die assembly.

[0007] A side fixing assembly is arranged outside the lower die assembly. The outside of the lower die assembly is provided with a side guide block which cooperates with the first driving member to displace the side fixing assembly towards the workpiece to be processed and abut the side wall of the workpiece to be processed against the side wall of the lower die assembly. The bottom of the side guide block is provided with an elastic pushing member.

[0008] A side wall extrusion thickening assembly is provided with a second driving member at the bottom. The side wall extrusion thickening assembly can be driven by the second driving member to extrude the side wall of the workpiece to be processed upwards, so that the thickness of the side wall of the workpiece to be processed gradually increases.

[0009] Optionally, the pressing assembly can be a first nitrogen spring, and the first driving member can be a hydraulic assembly.

[0010] Optionally, the elastic pushing member can be a second nitrogen spring.

[0011] Optionally, the side fixing assembly is provided with a position-avoiding groove for preventing the side fixing assembly from colliding with the upper die assembly on the side close to the workpiece to be processed, and is provided with a first inclined surface on the side away from the workpiece to be processed.

[0012] Optionally, the side guide block is provided with a second inclined surface on the side close to the side fixing assembly, which is matched with the first inclined surface, and the first inclined surface is parallel to the second inclined surface.

[0013] Optionally, the side wall thickening assembly comprises an assembling block and a thickening block detachably connected to one side of the assembling block, and the top of the thickening block is provided with a thickening portion.

[0014] Optionally, the upper die assembly comprises an upper top plate, an upper middle plate and an upper bottom plate arranged in sequence from top to bottom, and the upper bottom plate acts on the top of the workpiece to be processed.

[0015] Optionally, the lower die assembly comprises a lower top plate for bearing the workpiece to be processed, and the upper bottom plate and the lower top plate cooperate to clamp the front and back surfaces of the workpiece to be processed, the outer side of the lower top plate is provided with a lower middle plate assembly, the lower side of the lower middle plate assembly is provided with a lower bottom plate assembly, the lower bottom plate assembly is provided with a first through hole, the lower bottom plate assembly and the lower middle plate assembly are provided with a second through hole, and the side wall thickening assembly is arranged above the lower middle plate assembly.

[0016] Optionally, the first nitrogen spring comprises a first cylinder and a first plunger, and the second nitrogen spring comprises a second cylinder and a second plunger, the first cylinder is arranged at the bottom of the lower bottom plate assembly, the first plunger is arranged in the first through hole and connected to the bottom of the lower top plate, the second cylinder is arranged at the bottom of the lower bottom plate assembly, and the second plunger is arranged in the second through hole and connected to the bottom of the side guide block.

[0017] The application method of the thickening device for avoiding drumming is constructed, which comprises the following steps:

[0018] S1. The workpiece to be processed is placed on the lower die assembly, the upper die assembly is driven by the first driving member to displace towards the lower die assembly so that the upper die assembly cooperates with the lower die assembly to clamp the workpiece to be processed, at this time, the protruding portion will act on the inner side of the workpiece to be processed to avoid horizontal displacement of the workpiece to be processed, and the material pressing assembly acts on the lower die assembly to increase the clamping force of the upper die assembly and the lower die assembly when clamping the workpiece to be processed;

[0019] S11. The upper die assembly presses down the side fixing assembly, the side fixing assembly is in contact with the side guide block and is displaced towards the workpiece to be processed under the guidance of the side guide block, and the side wall of the workpiece to be processed is tightly pressed against the side wall of the lower die;

[0020] S2. The second driving member is started, and the side wall thickening assembly is driven by the second driving member to press the side wall of the workpiece to be processed upwards, so that the thickness of the side wall of the workpiece to be processed gradually increases.

[0021] The beneficial effects of the present application are:

[0022] 1. The first driving member and the second driving member can ensure that the upper die assembly and the lower die assembly press the top and bottom of the workpiece to be processed, and the side wall of the workpiece to be processed can be pressed by the cooperation of the first driving member and the side wall thickening assembly, so as to fix the workpiece to be processed, and then the side wall of the workpiece can be uniformly pressed by the side wall thickening assembly driven by the second driving member, so as to gradually increase the thickness of the side wall of the workpiece, thereby improving the strength and stability of the workpiece.

[0023] 2. The clamping force of the upper die assembly and the lower die assembly on the workpiece to be processed can be increased by the pressing assembly, and the friction between the lower die assembly and the workpiece to be processed can be increased by the protrusion, so as to avoid the occurrence of the drumming phenomenon of the workpiece to be processed when the side wall of the workpiece to be processed is thickened. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments. The drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor:

[0025] Figure 1 is the overall isometric view of the present application.

[0026] Figure 2 is the overall side view of the present application.

[0027] Figure 3 is the cross-sectional view of the present application along the B-B line. Figure 2

[0028] Figure 4 is another side view of the present application.

[0029] Figure 5 is the cross-sectional view of the present application along the C-C line. Figure 4

[0030] Figure 6 ​​is a B part enlarged schematic view of the present application. Figure 5

[0031] Figure 7 is a whole explosion schematic view of the present application.

[0032] Figure 8 is an A part enlarged schematic view of the present application. Figure 7

[0033] Reference signs are as follows:

[0034] 100, lower die assembly; 110, material pressing assembly; 111, first cylinder; 112, first plunger; 120, upper top plate; 130, lower middle plate assembly; 131, lower middle plate body; 132, first accommodating groove; 140, lower bottom plate assembly; 141, lower bottom plate body; 142, second accommodating groove; 150, first through hole; 160, second through hole; 200, upper die assembly; 201, upper top plate; 202, upper middle plate; 203, upper bottom plate; 300, side fixing assembly; 310, position avoiding groove; 320, first inclined surface; 400, side wall thickening assembly; 410, assembly block; 420, thickening block; 421, thickening part; 500, side guide block; 510, elastic pushing piece; 511, second cylinder; 512, second plunger; 520, second inclined surface; 600, second driving piece; 700, workpiece to be processed; 701, side wall of the workpiece to be processed. DETAILED DESCRIPTION

[0035] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood in a broad sense, for example, can be fixedly connected, can be detachably connected, or integrally connected, can be mechanically connected, or electrically connected, can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0037] ​​In the embodiments of the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0038] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific feature, structure, material or characteristic described can be combined in any appropriate manner in any one or more embodiments or examples. Furthermore, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples, without contradiction.

[0039] The embodiments of the present application, for example Figures 1-8As shown in the figure, it relates to a kind of thickening device for avoiding drumming, including lower die assembly 100, upper die assembly 200, side fixed assembly 300, side wall thickening assembly 400;The lower die assembly 100 includes the pressing assembly 110 for being arranged at the bottom of the lower die assembly 100 for applying an upward lifting force to the lower die assembly 100, the top of the lower die assembly 100 is provided with protruding portion for increasing the friction between the lower die assembly 100 and the workpiece 700 to be processed;Upper die assembly 200 includes first driving member (not shown in the figure) arranged above the upper die assembly 200, the first driving member is used to drive upper die assembly 200 towards lower die assembly 100 displacement and cooperate with the lower die assembly 100 and hold the top and bottom of the workpiece 700 to be processed;The side fixed assembly 300 is arranged at the outer side of the lower die assembly 100, the outer side of the lower die assembly 100 is provided with the side guide block 500 that cooperates with the first driving member and moves the side fixed assembly 300 towards the workpiece 700 to be processed, and the side wall of the workpiece 700 to be processed is tightly pressed to the side wall of the lower die assembly 100, the bottom of the side guide block 500 is provided with elastic pusher 510;The bottom of the side wall thickening assembly 400 is provided with second driving member 600, and the side wall thickening assembly 400 can be driven by the second driving member 600 to press the side wall of the workpiece 700 upwards, so that the thickness of the side wall of the workpiece 700 to be processed gradually increases, further, by the control of the first driving member and the second driving member 600, the upper die assembly 200 and the lower die assembly 100 can be extruded to the top and bottom of the workpiece 700 to be processed, the first driving member can be extruded to the side wall of the workpiece 700 to be processed by cooperating with the side wall thickening assembly 400, so as to fix the workpiece 700 to be processed, then under the drive of the second driving member 600, the side wall thickening assembly 400 can uniformly extrude the side wall of the workpiece, so that the thickness of the side wall of the workpiece gradually increases, thereby improving the strength and stability of the workpiece, and the clamping force of the upper die assembly 200 and the lower die assembly 100 to the workpiece 700 to be processed can be increased by being provided with the pressing assembly 110, the friction between the lower die assembly 100 and the workpiece 700 to be processed can be increased by the protruding portion, so as to avoid the drumming phenomenon of the workpiece 700 to be processed when the side wall of the workpiece 700 to be processed is thickened, wherein the protruding portion is provided with a plurality of and can be provided with a sharp end of the column, the sharp end can be inserted into the surface of the workpiece 700 to be processed to increase the friction between the lower die assembly 100 and the workpiece 700 to be processed, in some embodiments, the protruding portion is provided with a plurality of and can be in granular form, and the second driving member 600 can be a pneumatic cylinder or a hydraulic machine.

[0040] Refer to Figures 1-7In the embodiment, the pressing assembly 110 can be a first nitrogen spring, the first driving member can be a hydraulic assembly, and the elastic pushing member 510 can be a second nitrogen spring. The nitrogen spring can provide greater and stable force compared to a common spring. The stable elastic pressure can ensure that the material remains stable during the production process, preventing movement or shaking, thereby improving the quality and precision of the product. The hydraulic driver converts liquid pressure energy into mechanical energy through a hydraulic pump, and the energy transmission efficiency is high, which can meet the power requirements of the pressing device. The hydraulic device can be a hydraulic machine.

[0041] In the embodiment, the side fixing assembly is provided with an avoidance groove 310 close to one side of the workpiece 700 to be processed to prevent the side fixing assembly from colliding with the upper die assembly 200. The side fixing assembly is provided with a first inclined surface 320 away from the other side of the workpiece 700 to be processed. The side guide block 500 is provided with a second inclined surface 520 close to one side of the side fixing assembly, which is matched with the first inclined surface 320. The first inclined surface 320 is parallel to the second inclined surface 520. Specifically, the avoidance groove 310 can effectively prevent the side fixing assembly from colliding with the upper die assembly 200 during mold closing or mechanical operation, avoiding damage to the mold or machine and preventing the quality and production efficiency of the product from being affected. The first inclined surface 320 away from the side of the workpiece 700 to be processed and the second inclined surface 520 close to the side of the side guide block 500 are matched with the first inclined surface 320, which together form an accurate guide assembly to ensure that the side fixing assembly can be positioned towards the workpiece 700 to be processed during mold assembly and operation, thereby extruding the side wall of the workpiece 700 to be processed.

[0042] Referring to Figures 1-7 In the embodiment, the bottom of the side wall thickening assembly 400 is provided with a mounting plate. The side wall thickening assembly 400 includes an assembly block 410 and a thickening block 420 detachably connected to one side of the assembly block 410. The top of the thickening block 420 protrudes a thickening portion 421. Specifically, the assembly block 410 and the thickening block 420 are detachably connected, and the thickening block 420 can be replaced in time when it is excessively worn. The thickening block 420 is one of the core components of the side wall thickening assembly 400. The thickening portion 421 on the thickening block 420 can extrude the side wall of the workpiece through a specific shape and structure, thereby achieving the effect of thickening the side wall. The detachable connection mode can be screw connection.

[0043] In the embodiment, the upper die assembly 200 comprises an upper top plate 201, an upper middle plate 202 and an upper bottom plate 203 arranged in sequence from top to bottom, the upper bottom plate 203 acts on the top of the workpiece 700 to be processed, the upper top plate transmits pressure to the upper bottom plate 203 through the upper middle plate 202, and then acts on the workpiece, so that the pressure is uniformly distributed in the mold, thereby improving the processing efficiency and product quality.

[0044] Referring to Figures 1-8In the embodiment, the lower die assembly 100 comprises a lower top plate 120 for carrying the workpiece 700 to be processed, the upper bottom plate 203 and the lower top plate 120 cooperate to clamp the front and back surfaces of the workpiece 700 to be processed, the outer side of the lower top plate 120 is provided with a lower middle plate assembly 130, the lower side of the lower middle plate is provided with a lower bottom plate assembly 140, the lower bottom plate assembly 140 is provided with a first through hole 150, the lower bottom plate assembly 140 and the lower middle plate assembly 130 are provided with a second through hole 160, further, the first nitrogen gas spring comprises a first cylinder body 111 and a first plunger 112, the second nitrogen gas spring comprises a second cylinder body 511 and a second plunger 512, the first cylinder body 111 is arranged at the bottom of the lower bottom plate assembly 140, the first plunger 112 is arranged in the first through hole 150 and connected with the bottom of the lower top plate 120, the second cylinder body 511 is arranged at the bottom of the lower bottom plate assembly 140, the second plunger 512 is arranged in the second through hole 160 and connected with the bottom of the side guide block 500, the side wall thickening assembly 400 is arranged above the lower middle plate assembly 130, in particular, when the side wall thickening assembly 400 thickens the side wall of the workpiece 700 to be processed, the side wall of the workpiece 700 to be processed will push the side fixing assembly away from the workpiece 700 to be processed while thickening, so that the second plunger 512 drives the side guide block 500 to move slightly downward, preventing the thickening of the side wall of the workpiece from failing, the upper bottom plate 203 and the lower top plate 120 cooperate to stably clamp the front and back surfaces of the workpiece 700 to be processed, so as to ensure the stability of the workpiece during processing, the existence of the lower bottom plate assembly 140 and the lower middle plate assembly 130 helps to disperse the pressure inside the mold, this design reduces the stress intensity of a single component, thereby prolonging the service life of the mold, optionally, the lower middle plate assembly 130 comprises two lower middle plate bodies 131 arranged from top to bottom, the bottom of the middle plate body of the two lower middle plate bodies 131 close to the lower bottom plate assembly 140 is provided with a first accommodating groove 132, the lower bottom plate assembly 140 comprises two lower bottom plate bodies 141 arranged from top to bottom, the lower bottom plate body 141 of the two lower bottom plate bodies 141 close to the lower middle plate is provided with a second accommodating groove 142, the first accommodating groove 132 is opposite to the second accommodating groove 142, and the second driving member 600 is arranged in the first accommodating groove 132 and the second accommodating groove 142.

[0045] An application method of the thickening device for avoiding drumming, comprising the following steps:

[0046] S1. The workpiece 700 to be processed is placed on the lower die assembly 100, and the upper die assembly 200 is driven by the first driving member to move towards the lower die assembly 100 so that the upper die assembly 200 cooperates with the lower die assembly 100 to clamp the workpiece 700 to be processed. At this time, the protruding part will act on the inner side of the workpiece 700 to be processed, avoiding horizontal displacement of the workpiece 700 to be processed. The pressing assembly 110 acts on the lower die assembly 100 to increase the clamping force when the upper die assembly 200 and the lower die assembly 100 clamp the workpiece 700 to be processed. The upper die assembly 200 is driven by the first driving member to move towards the lower die assembly 100 so that the upper die assembly 200 cooperates with the lower die assembly 100 to clamp the workpiece 700 to be processed. This design ensures the stability of the workpiece during processing, avoids processing errors caused by movement or deformation of the workpiece, and the protruding part acts on the inner side of the workpiece 700 to be processed, effectively preventing horizontal displacement of the workpiece during processing. This design improves the accuracy and reliability of processing, ensures the quality of the workpiece, and the inner side of the workpiece 700 to be processed is not exposed to the outside after assembly, which does not affect the appearance of the workpiece.

[0047] S11. The upper die assembly 200 presses the side fixing assembly 300, the side fixing assembly 300 is in contact with the side guide block 500 and moves towards the workpiece 700 to be processed under the guidance of the side guide block 500, and the side wall of the workpiece 700 to be processed is tightly clamped to the side wall of the lower die assembly 100. In this way, the side wall of the workpiece 700 to be processed is fixed.

[0048] S2. The second driving member 600 is started, and the second driving member 600 drives the side wall thickening assembly 400 to press the side wall of the workpiece 700 upwards, so that the thickness of the side wall of the workpiece 700 to be processed gradually increases.

[0049] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall belong to the protection scope of the appended claims of the present application.

Claims

1. A device for avoiding thickening caused by drumming, characterized in that, include: The lower die assembly (100) includes a pressure assembly (110) disposed at the bottom of the lower die assembly (100) for applying an upward lifting force to the lower die assembly (100), and a protrusion disposed at the top of the lower die assembly (100) for increasing the friction between the lower die assembly (100) and the workpiece (700) to be processed; The upper mold assembly (200) includes a first driving member disposed above the upper mold assembly (200), the first driving member being used to drive the upper mold assembly (200) to move toward the lower mold assembly (100) and cooperate with the lower mold assembly (100) to clamp the top and bottom of the workpiece (700) to be processed; A side fixing component (300) is disposed on the outside of the lower mold assembly (100). The lower mold assembly (100) is provided with a side guide block (500) on the outside of the lower mold assembly (100) in cooperation with the first driving member to move the side fixing component (300) toward the workpiece to be processed (700) and to press the side wall of the workpiece to be processed (700) against the side wall of the lower mold assembly (100). An elastic pusher (510) is provided at the bottom of the side guide block (500). A sidewall extrusion assembly (400) is provided with a second driving member (600) at its bottom. The sidewall extrusion assembly (400) can extrude upwards onto the sidewall of the workpiece to be processed (700) under the drive of the second driving member (600), so that the thickness of the sidewall of the workpiece to be processed (700) gradually increases. The sidewall extrusion assembly (400) includes an assembly block (410) and an extrusion block (420) detachably connected to one side of the assembly block (410), wherein the top of the extrusion block (420) is provided with an extrusion portion (421). The upper mold assembly (200) includes an upper top plate (201), an upper middle plate (202), and an upper bottom plate (203) arranged sequentially from top to bottom. The upper bottom plate (203) acts on the top of the workpiece (700) to be processed. The lower die assembly (100) includes a lower top plate (120) for supporting the workpiece (700) to be processed. The upper bottom plate (203) cooperates with the lower top plate (120) to clamp the front and back sides of the workpiece (700) to be processed. A lower middle plate assembly (130) is provided on the outer side of the lower top plate (120). A lower bottom plate assembly (140) is provided below the lower middle plate assembly (130). A first through hole (150) is provided on the lower bottom plate assembly (140). A second through hole (160) is provided on the lower bottom plate assembly (140) and the lower middle plate assembly (130). The sidewall extrusion assembly (400) is provided above the lower middle plate assembly (130).

2. The device for avoiding thickening caused by drumming according to claim 1, characterized in that, The pressing assembly (110) is a first nitrogen spring, and the first driving component is a hydraulic assembly.

3. The device for avoiding thickening caused by drumming according to claim 2, characterized in that, The elastic pusher (510) is a second nitrogen spring.

4. The device for avoiding thickening caused by drumming according to claim 3, characterized in that, The side fixing component (300) is provided with a clearance groove (310) on the side closer to the workpiece (700) to prevent the side fixing component from colliding with the upper mold component (200), and a first inclined surface (320) is provided on the side of the side fixing component (300) away from the workpiece (700).

5. The device for avoiding thickening caused by drumming according to claim 4, characterized in that, The side guide block (500) is provided with a second inclined surface (520) that is adapted to the first inclined surface (320) on the side near the side fixing component (300), and the first inclined surface (320) and the second inclined surface (520) are parallel.

6. The device for avoiding thickening caused by drumming according to claim 5, characterized in that, The first nitrogen spring includes a first cylinder (111) and a first plunger (112), and the second nitrogen spring includes a second cylinder (511) and a second plunger (512). The first cylinder (111) is disposed at the bottom of the lower base plate assembly (140), the first plunger (112) passes through the first through hole (150) and is connected to the bottom of the lower top plate (120), the second cylinder (511) is disposed at the bottom of the lower base plate assembly (140), and the second plunger (512) passes through the second through hole (160) and is connected to the bottom of the side guide block (500).

7. A method for applying the device for avoiding thickening caused by drumming as described in claim 6, characterized in that, Includes the following steps: S1. Place the workpiece (700) to be processed on the lower mold assembly (100). Drive the upper mold assembly (200) towards the lower mold assembly (100) through the first driving member so that the upper mold assembly (200) and the lower mold assembly (100) cooperate to clamp the workpiece (700) to be processed. At this time, the protrusion will act on the inner side of the workpiece (700) to prevent the workpiece (700) to be processed from horizontal displacement. The pressure assembly (110) acts on the lower mold assembly (100) to increase the clamping force when the upper mold assembly (200) and the lower mold assembly (100) clamp the workpiece (700) to be processed. S11. The upper mold assembly (200) presses down the side fixing assembly (300), the side fixing assembly (300) contacts the side guide block (500) and moves toward the workpiece to be processed (700) under the guidance of the side guide block (500), and presses the side wall of the workpiece to be processed (700) against the side wall of the lower mold assembly (100); S2. The second driving member (600) is activated, and the second driving member (600) drives the sidewall extrusion assembly (400) to extrude upwards onto the sidewall of the workpiece to be processed (700), so that the thickness of the sidewall of the workpiece to be processed (700) gradually increases.

Images