An internal slider unblocking and locking structure and mold

Abstract

This utility model provides an internal slider unhooking structure and mold. The structure includes: a support block disposed on a lower mold assembly, and a first unhooking mechanism movably disposed within the support block; the first unhooking mechanism includes a first shovel connecting block and a first shovel assembly; an ejection structure disposed on one side of the support block; a return structure disposed on the other side of the support block; a first moving assembly passing through a first moving space on the support block, and a first ejection groove disposed on the first moving assembly, the first ejection groove being adapted to a first inclined boss; the mold includes an upper mold assembly and a lower mold assembly; and also includes an internal slider unhooking structure; one end of the first shovel assembly passing through a first forming cavity; the support block disposed on a base plate, and a drive plate sleeved on the support block; the internal slider unhooking structure and mold proposed in this utility model do not require increasing the mold size, and can reduce the number of parts during mold making, thereby reducing production difficulty and further reducing the probability of damage and repair.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, and in particular to an internal slider unblocking and buckling structure and mold. Background Technology

[0002] Plastics are organic compounds commonly used in home appliances, automobiles, mobile phones, medical devices, and lighting appliances; among them are some long products with internal indentations.

[0003] For long plastic products with internal undercuts, injection molding is used for molding. In existing technology, a backing plate and ejector plate need to be added to the lower mold of the mold after molding, which increases the overall size of the mold and requires a complex mechanical structure for opening and closing the mold. This requires increasing the overall tonnage of the injection molding equipment. In addition, the increased number of parts during mold making increases the production difficulty. Furthermore, the increased number of parts further increases the probability of damage and repair during subsequent use. Utility Model Content

[0004] The purpose of this utility model is to provide an internal slider unblocking structure and mold, which can solve the above-mentioned technical problems;

[0005] This utility model provides an internal slider release buckle structure, including:

[0006] The support block is mounted on the lower module, and a first release mechanism is movably mounted within the support block;

[0007] The first release mechanism includes a first shovel connecting block, which is movably disposed within a support block; and a first inclined boss is provided on the first shovel connecting block; and a first shovel assembly is disposed on the first shovel connecting block;

[0008] The ejector structure is located on one side of the support block, and a driving ramp is provided on the ejector structure;

[0009] The return structure is located on the other side of the support block, and a reset slope is provided on the return structure;

[0010] The first movable group is inserted into the first movable space on the support block, and a first ejection groove is provided on the first movable group, and the first ejection groove is adapted to the first inclined boss.

[0011] In the ejected state, one end of the first moving group is in contact with the ejection structure; in the reset state, the other end of the first moving group is in contact with the return structure.

[0012] As a further technical solution, the first shovel assembly includes:

[0013] The first inner shovel is mounted on the first shovel connecting block at one end;

[0014] The first limit block is located at the other end of the first inner shovel.

[0015] As a further technical solution, the first mobile group includes:

[0016] The movable block is installed in the first movable space on the support block; and the two ends of the movable block are respectively provided with a first installation space and a second installation space.

[0017] The first roller and the second roller are respectively located in the first mounting space and the second mounting space.

[0018] As a further technical solution, a first balancing boss is provided on the first shovel connecting block; a first balancing groove is provided on the first moving group, and the first balancing groove is adapted to the first balancing boss.

[0019] As a further technical solution, it also includes:

[0020] The second tripping mechanism is movably mounted on the support block;

[0021] The second moving group is installed in the second moving space on the support block;

[0022] In the ejected state, one end of the second moving group is in contact with the ejection structure; in the reset state, the other end of the second moving group is in contact with the return structure.

[0023] As a further technical solution, the second tripping mechanism includes:

[0024] The second shovel connecting block is movably disposed within the support block; and the second shovel connecting block is provided with a second inclined boss; the second shovel assembly is disposed on the second shovel connecting block.

[0025] As a further technical solution, the second movable group is provided with a second ejection groove, and the second ejection groove is adapted to the second inclined boss.

[0026] As a further technical solution, a second balancing boss is provided on the second shovel connecting block; a second balancing groove is provided on the second moving group, and the second balancing groove is adapted to the second balancing boss.

[0027] As a further technical solution, it also includes: a wear-resistant block, which is set on the support block.

[0028] This utility model also proposes a mold, including an upper mold assembly and a lower mold assembly; it also includes an inner slider unblocking and buckling structure; the upper mold assembly is provided with a first forming cavity, and one end of the first shovel assembly passes through the first forming cavity; the lower mold assembly is provided with a base plate and a drive plate, a support block is provided on the base plate, and the drive plate is sleeved on the support block.

[0029] The technical solution of this utility model involves a support block mounted on the lower module, and a first shovel assembly driven by a first shovel connecting block to move within the first forming cavity of the upper module. The first moving assembly passes through a first moving space on the support block. During use, the vertical movement of the ejector structure causes the driving inclined surface to contact one end of the first moving assembly, pushing it to move laterally. Because the first ejection groove on the first moving assembly contacts the first inclined boss, the lateral movement of the first moving assembly pushes the first shovel connecting block, causing the first shovel assembly to move downwards vertically, thereby enabling the first shovel... The assembly disengages from the internal snap-fit ​​of the product, completing the product demolding. After demolding, the return structure's upper resetting inclined surface contacts the other end of the first moving assembly, causing the first moving assembly to move in the opposite direction. Under the action of the first ejection groove and the first inclined boss, the first shovel connecting block drives the first shovel assembly to move upward in the vertical direction, placing the first shovel assembly in the first forming cavity of the upper mold assembly, ready for the next forming. Compared with the prior art, the technical solution of this utility model has a simple structure, does not require increasing the mold size, and can reduce the number of parts during mold making, thereby reducing production difficulty and further reducing the probability of damage and repair. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the internal slider release buckle structure of this utility model at one angle;

[0032] Figure 2 This is a perspective view of an internal slider release buckle structure of this utility model from one angle.

[0033] Figure 3 This is a perspective view of the internal slider release buckle structure of this utility model from another angle;

[0034] Figure 4 This is a structural schematic diagram of the inner slider unhooking structure of this utility model from another angle;

[0035] Figure 5 for Figure 4 A sectional view of section AA;

[0036] Figure 6 for Figure 4 A sectional view of section BB;

[0037] Figure 7 This is a perspective view of the combined state of the first release mechanism and the first moving group in this utility model.

[0038] Figure 8 This is a perspective view of the combined state of the first release mechanism and the first moving group in this utility model from another angle.

[0039] Figure 9 This is a schematic diagram of the internal structure of a mold according to the present invention.

[0040] Explanation of reference numerals in the attached figures:

[0041] 100 - Support block; 101 - First moving space; 102 - Second moving space;

[0042] 200-First release mechanism; 201-First shovel connecting block; 211-First balancing boss; 202-First tilting boss; 203-First shovel assembly; 231-First inner shovel; 232-First limit block;

[0043] 300 - Ejector structure; 301 - Driving ramp;

[0044] 400 - Return structure; 401 - Reset ramp;

[0045] 500 - First moving group; 501 - First ejection groove; 502 - Moving block; 503 - First mounting space; 504 - Second mounting space; 505 - First roller; 506 - Second roller; 507 - First balancing groove;

[0046] 600 - Second release mechanism; 601 - Second loader connecting block; 602 - Second loader assembly; 621 - Second inner loader; 622 - Second limit block;

[0047] 700 - Second moving group;

[0048] 800 - Wear-resistant block; 901 - Upper module;

[0049] 911-First molding cavity; 902-Lower module; 921-Base plate; 922-Drive plate. Detailed Implementation

[0050] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0051] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] like Figure 1-8 As shown, the present invention provides an internal slider unhooking structure, comprising:

[0054] The support block 100 is disposed on the lower module 902, and a first release mechanism 200 is movably disposed within the support block 100; during use, the first release mechanism 200 can extend and retract within the support block 100 to separate from the molded product.

[0055] The first release mechanism 200 includes a first shovel connecting block 201, which is movably disposed within the support block 100; and a first inclined boss 202 is provided on the first shovel connecting block 201; a first shovel assembly 203 is disposed on the first shovel connecting block 201; during demolding, the first shovel connecting block 201 moves within the support block 100 and drives the first shovel assembly 203 to move simultaneously, and during the movement, one end placed in the first molding cavity 911 separates from the undercut on the inner surface of the product, and the product is demolded after separation;

[0056] The ejector structure 300 is disposed on one side of the support block 100, and a driving inclined surface 301 is provided on the ejector structure 300; the return structure 400 is disposed on the other side of the support block 100, and a reset inclined surface 401 is provided on the return structure 400; the first moving group 500 passes through the first moving space 101 on the support block 100, and a first ejection groove 501 is provided on the first moving group 500, and the first ejection groove 501 is adapted to the first inclined boss 202; in the ejected state, one end of the first moving group 500 contacts the ejector structure 300; in the reset state, the other end of the first moving group 500 contacts the return structure 400;

[0057] In use, the lower module 902 operates, driving the ejector structure 300 to move linearly. Since the driving inclined surface 301 on the ejector structure 300 contacts one end of the first moving group 500, it pushes the first moving group 500 to move laterally within the first moving space 101. During this movement, the first ejection groove 501 pushes the first inclined boss 202 to operate. Figure 7 As shown, the first ejector groove 501 pushes the first inclined boss 202 downward, and the first inclined boss 202 is set on the first shovel connecting block 201. Therefore, the first shovel assembly 203 can be driven to move downward by the first ejector groove 501 pushing the first shovel connecting block 201 downward, and the product surface in the first molding cavity 911 can be separated from the product. After the product is demolded, the lower mold assembly 902 is reset, and the ejector structure 300 and the return structure 400 are driven to move downward at the same time. At this time, the force applied by the ejector structure 300 to the first moving assembly 500 disappears, and the reset inclined surface 401 on the return structure 400 contacts the other end of the first moving assembly 500 and pushes the first moving assembly 500 to move laterally to reset. At this time, the first ejector groove 501 moves in the opposite direction and drives the first inclined boss 202 to move in the opposite direction, thereby enabling the first shovel assembly 203 to be placed in the first molding cavity 911 during the upward movement of the first shovel connecting block 201 for the next molding.

[0058] The technical solution of this utility model involves a support block 100 mounted on the lower module 902, and a first shovel assembly 203 driven by a first shovel connecting block 201 to move within the first forming cavity 911 of the upper module 901. The first moving assembly 500 is disposed within the first moving space 101 on the support block 100. During use, the vertical movement of the ejector structure 300 causes the driving inclined surface 301 to contact one end of the first moving assembly 500, pushing the first moving assembly 500 to move laterally. Since the first ejection groove 501 on the first moving assembly 500 contacts the first inclined boss 202, during the lateral movement of the first moving assembly 500, the first shovel connecting block 201 is pushed, causing the first shovel assembly 203 to move downwards vertically. The movement causes the first shovel assembly 203 to disengage from the undercut inside the product, completing the product demolding. After demolding, the return slope 401 on the return structure 400 contacts the other end of the first moving assembly 500, causing the first moving assembly 500 to move in the opposite direction. Under the action of the first ejection groove 501 and the first inclined boss 202, the first shovel connecting block 201 drives the first shovel assembly 203 to move upward in the vertical direction, placing the first shovel assembly 203 in the first forming cavity 911 of the upper mold assembly 901, ready for the next forming. Compared with the prior art, the technical solution of this utility model has a simple structure, does not require increasing the mold size, and can reduce the number of parts during the mold making process, thereby reducing the production difficulty and further reducing the probability of damage and maintenance.

[0059] like Figure 5 As shown, the first shovel assembly 203 includes a first inner shovel 231 and a first limiting block 232. One end of the first inner shovel 231 is mounted on the first shovel connecting block 201; the first limiting block 232 is mounted on the other end of the first inner shovel 231. Figure 7 As shown, the first shovel connecting block 201 is provided with a through groove, and the first inner shovel 231 is provided with a protrusion adapted to the through groove. In the connected state, the protrusion is placed in the through groove, and the cooperation between the through groove and the protrusion ensures the firmness of the connection between the first shovel connecting block 201 and the first inner shovel 231 during operation. At the same time, the other end of the first inner shovel 231 has a conical structure and inclined grooves are provided on both sides. There are two first limiting blocks 232, and each of the two first limiting blocks 232 is provided with an inclined block, which is adapted to the inclined groove. In this way, when the first inner shovel 231 moves upward, it can push the two first limiting blocks 232 away from each other; and when the first inner shovel 231 moves downward, it can push the two first limiting blocks 232 closer to each other.

[0060] like Figure 5As shown, the first moving assembly 500 includes a moving block 502, a first roller 505, and a second roller 506. The moving block 502 passes through a first moving space 101 on the support block 100; and a first mounting space 503 and a second mounting space 504 are respectively provided at both ends of the moving block 502; the first roller 505 and the second roller 506 are respectively disposed in the first mounting space 503 and the second mounting space 504; wherein, the first roller 505 contacts the driving inclined surface 301 on the ejection structure 300; the second roller 506 contacts the reset inclined surface 401 on the return structure 400, thereby moving... During operation, the first roller 505 is driven to rotate by the driving inclined surface 301. Since the first roller 505 cannot move, the moving block 502 moves within the first space under the push of the ejection structure 300. During reset, the direction of movement changes, and the ejection structure 300 no longer applies force to the first roller 505. Meanwhile, the reset inclined surface 401 on the return structure 400 contacts the second roller 506. At the same time, since the second roller 506 cannot move, the moving block 502 moves in the opposite direction within the first moving space 101 under the push of the return structure 400, completing the reset of the moving block 502. Figure 7 and Figure 8 As shown, in this utility model, the first roller 505 and the second roller 506 are respectively connected to the first mounting space 503 and the second mounting space 504; the ejection structure 300 is an ejection block, and the return structure 400 is a return frame.

[0061] In addition, to ensure the stability of the first moving group 500 and the first shovel connecting block 201 when the first moving group 500 is in operation, preferably, the first shovel connecting block 201 is provided with a first balancing boss 211; the first moving group 500 is provided with a first balancing groove 507, which is adapted to the first balancing boss 211; thus, when the first moving group 500 is in operation, the first balancing boss 211 and the first balancing groove 507 can cooperate with the first tilting boss 202 and the first ejection groove 501 to move simultaneously, thereby ensuring the stability of the first moving group 500 and the first shovel connecting block 201 when they move; wherein, the first balancing boss 211 is fixed to the first shovel connecting block 201 by bolts, and the first balancing groove 507 is formed on the moving block 502.

[0062] like Figure 2-4As shown, this utility model also includes a second tripping mechanism 600 and a second moving group 700. The second tripping mechanism 600 is movably disposed on the support block 100. The second moving group 700 passes through the second moving space 102 on the support block 100. In the ejected state, one end of the second moving group 700 contacts the ejection structure 300. In the reset state, the other end of the second moving group 700 contacts the return structure 400. The second tripping mechanism 600 is disposed adjacent to the first tripping mechanism 200, and the second moving group 700 is disposed adjacent to the first moving group 500. During the operation phase, the ejection structure 300 and the return structure 400 simultaneously drive the first moving group 500 and the second moving group 700 to operate, thereby realizing the simultaneous operation of the first tripping mechanism 200 and the second tripping mechanism 600.

[0063] like Figure 6 As shown, the second release mechanism 600 includes a second shovel connecting block 601 and a second shovel assembly 602. The second shovel connecting block 601 is movably disposed within the support block 100; and a second inclined boss is provided on the second shovel connecting block 601; the second shovel assembly 602 is disposed on the second shovel connecting block 601; furthermore, the second shovel assembly 602 includes a second inner shovel 621 and a second limiting block 622. One end of the second inner shovel 621 is disposed on the second shovel connecting block 601, and the second limiting block 622 is disposed at one end of the second inner shovel 621; in this utility model, the second inner shovel 621 and the second The structure of the limiting block 622 is the same as that of the first inner shovel 231 and the first limiting block 232. To save space, this utility model will not describe it further. In addition, the second moving group 700 is provided with a second ejection groove, and the second ejection groove is adapted to the second inclined boss. During the operation, the second shovel connecting block 601 moves up and down in the vertical direction through the cooperation of the second ejection groove and the second inclined boss. At the same time, the second moving group 700 has the same structure as the first moving group 500. To save space, this utility model will not describe the specific structure of the second moving group 700 further.

[0064] The second shovel connecting block 601 is provided with a second balancing boss; the second moving group 700 is provided with a second balancing groove, which is adapted to the second balancing boss; during the operation, the second balancing boss and the second balancing groove work together with the second ejection groove and the second tilting boss to ensure the stability of the second moving group 700 and the second shovel connecting block 601 during the movement.

[0065] like Figure 2-3As shown, a wear-resistant block 800 is also provided, which is disposed on the support block 100; the wear-resistant block 800 seals the support block 100, and the cooperation between the wear-resistant block 800 and the support block 100 further restricts the position of the first moving group 500 and the second moving group 700, ensuring the stability of the first moving group 500 and the second moving group 700 during operation.

[0066] like Figure 9 As shown, this utility model also proposes a mold, including an upper mold assembly 901 and a lower mold assembly 902; it also includes an inner slider unblocking structure; the upper mold assembly 901 is provided with a first forming cavity 911, and one end of the first shovel assembly 203 passes through the first forming cavity 911; the lower mold assembly 902 is provided with a base plate 921 and a drive plate 922, a support block 100 is provided on the base plate 921, and the drive plate 922 is sleeved on the support block 100; in addition, in this utility model, the upper mold assembly 901 is also provided with a second forming cavity, and the second shovel assembly 602 is provided in the second forming cavity; the second shovel assembly 602 follows the ejection structure 300 and the return structure 400 to move within the support block 100 under the drive of the second action; the ejection structure 300 and the return structure 400 are both provided on the drive plate 922.

[0067] During actual operation, the upper mold assembly 901 and the lower mold assembly 902 are in a closed state, and injection molding is performed into the first molding cavity 911 and the second molding cavity through the injection molding machine. After subsequent molding, the upper mold assembly 901 and the lower mold assembly 902 open under the drive of the molding machine, and the drive plate 922 moves. At the same time, the drive plate 922 drives the ejector structure 300 to move simultaneously. The ejector structure 300 drives the first moving group 500 and the second moving group 700 to move simultaneously. The first moving group 500 and the second moving group 700 drive the first shovel connecting block 201 and the second shovel connecting block 601 to move within the support block 100, respectively. At the same time, the first shovel connecting block 201 and the second shovel connecting block 601 drive the first shovel group 203 and the second shovel group 602 to move, realizing the undercut separation of the first shovel group 203 and the second shovel group 602 from the inner surface of the product; thus completing the demolding operation of the product in the first molding cavity 911 and the second molding cavity.

[0068] After demolding, the external molding machine no longer applies force to the lower mold group 902; the drive plate 922 is reset under the action of the reset spring in the lower mold group 902, and during the reset process, the drive plate 922 drives the return structure 400 to move. Since the return structure 400 is in contact with the first moving group 500 and the second moving group 700 respectively, it can drive the first moving group 500 and the second moving group 700 to move in opposite directions. At the same time, the first moving group 500 and the second moving group 700 drive the first shovel connecting block 201 and the second shovel connecting block 601 to move, completing the reset of the first shovel group 203 and the second shovel group 602; after the first shovel group 203 and the second shovel group 602 are reset, the upper mold group 901 and the lower mold group 902 are closed, waiting for the next product molding operation.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An inner slide decap structure, characterized in that, include: The support block (100) is disposed on the lower module (902), and a first release mechanism (200) is movably disposed within the support block (100). The first release mechanism (200) includes a first shovel connecting block (201), which is movably disposed within the support block (100); and a first inclined boss (202) is provided on the first shovel connecting block (201); and a first shovel assembly (203) is disposed on the first shovel connecting block (201); An ejector structure (300) is provided on one side of the support block (100), and a driving inclined surface (301) is provided on the ejector structure (300). A return structure (400) is provided on the other side of the support block (100), and a reset slope (401) is provided on the return structure (400). The first movable group (500) is disposed in the first movable space (101) on the support block (100), and a first ejection groove (501) is provided on the first movable group (500), and the first ejection groove (501) is adapted to the first inclined boss (202); In the ejected state, one end of the first moving group (500) is in contact with the ejected structure (300); in the reset state, the other end of the first moving group (500) is in contact with the return structure (400).

2. The inner slide un-stripping structure of claim 1, wherein The first loader assembly (203) includes: The first inner shovel (231) is mounted on the first shovel connecting block (201) at one end; The first limiting block (232) is located at the other end of the first inner shovel (231).

3. The inner slide un-stripping structure of claim 1, wherein The first moving group (500) includes: The movable block (502) is inserted into the first movable space (101) on the support block (100); and the two ends of the movable block (502) are respectively provided with a first installation space (503) and a second installation space (504). The first roller (505) and the second roller (506) are respectively disposed in the first mounting space (503) and the second mounting space (504).

4. The inner slider unhooking structure according to claim 1, characterized in that, The first shovel connecting block (201) is provided with a first balancing boss (211); the first moving group (500) is provided with a first balancing groove (507), and the first balancing groove (507) is adapted to the first balancing boss (211).

5. The inner slider unhooking structure according to claim 1, characterized in that, Also includes: The second tripping mechanism (600) is movably mounted on the support block (100); The second movable group (700) is installed in the second movable space (102) on the support block (100); In the ejected state, one end of the second moving group (700) is in contact with the ejected structure (300); in the reset state, the other end of the second moving group (700) is in contact with the return structure (400).

6. The inner slider unhooking structure according to claim 5, characterized in that, The second tripping mechanism (600) includes: The second shovel connecting block (601) is movably disposed within the support block (100); and the second shovel connecting block (601) is provided with a second inclined boss; the second shovel assembly (602) is disposed on the second shovel connecting block (601).

7. The inner slider unhooking structure according to claim 6, characterized in that, The second movable group (700) is provided with a second ejection groove, and the second ejection groove is adapted to the second inclined boss.

8. The internal slider unhooking structure according to claim 6, characterized in that, The second shovel connecting block (601) is provided with a second balancing boss; the second moving group (700) is provided with a second balancing groove, which is adapted to the second balancing boss.

9. The inner slider unhooking structure according to claim 1, characterized in that, Also includes: A wear-resistant block (800) is disposed on the support block (100).

10. A mold, comprising an upper mold assembly (901) and a lower mold assembly (902); characterized in that, It also includes the inner slider unblocking buckle structure as described in any one of claims 1-9; the upper module (901) is provided with a first forming cavity (911), and one end of the first shovel assembly (203) passes through the first forming cavity (911); the lower module (902) is provided with a base plate (921) and a drive plate (922), the support block (100) is provided on the base plate (921), and the drive plate (922) is sleeved on the support block (100).

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