Forming device and production line

Abstract

The utility model discloses a forming device and a production line, and relates to the field of forming. The forming device comprises a first stamping part, a second stamping part and a rotating part. The second stamping part comprises a plurality of second stamping units, the second stamping units are arranged around the first stamping part, a stamping space is formed between the second stamping units and the first stamping part, and the stamping space is used for containing a to-be-molded material; the multiple second stamping units can get close to the first stamping part so as to stamp a plastic material in the stamping space, and the rotating part is connected with the first stamping part and / or the second stamping parts and can make the first stamping part and the multiple second stamping units move relative to each other. On the basis of the arrangement, the molded material can be more comprehensively deformed, generation of a gap area is reduced, and a produced product has better performance and better precision.

Description

Technical Field

[0001] The present application relates to the field of forming, and in particular to a forming device and a production line. Background Art

[0002] A forming device is usually formed by the cooperation of a first stamping part, a second stamping part and a driving mechanism. Among them, the first stamping part is fixed at the center position of the mold and is used to determine the internal shape and size of the pipe. The second stamping part is usually arranged around the first stamping part and can move radially. The driving mechanism provides power to make the second stamping part perform radial movement. The stamping and forming actions of the pipe are completed, such as necking (reducing the pipe diameter), flaring (increasing the pipe diameter), etc.

[0003] The above-mentioned second stamping part can be composed of a plurality of second stamping units that can move radially, and they are placed around the first stamping part. When necking or flaring of the pipe is required, the second stamping units will press inward or expand outward under the action of the driving mechanism, thereby changing the external dimensions of the pipe. The driving mechanism usually uses a hydraulic cylinder or a motor as the power source. It is responsible for providing the required movement ability for the second stamping part blocks. For example, during the necking operation, the driving mechanism will push the second stamping units towards the center direction, make them close to the outer surface of the pipe, and apply appropriate pressure to achieve plastic deformation.

[0004] However, after stamping by multiple outer sub-molds, it is easy to have a situation where plastic deformation does not occur at the gap between two adjacent second stamping units, and thus the deformation of the pipe is incomplete. Utility Model Content

[0005] The purpose of the present application is to provide a forming device and a production line for solving the problem that the material to be formed is not completely deformed at the gap between two second stamping units.

[0006] According to the first aspect of the embodiments of the present application, a forming device is provided, and the forming device includes:

[0007] A first stamping part;

[0008] A second stamping part, the second stamping part includes a plurality of second stamping units, the plurality of second stamping units are arranged around the first stamping part, and there is a stamping space between the plurality of second stamping units and the first stamping part, the stamping space is used to place the material to be formed, and the plurality of second stamping units can approach the first stamping part to stamp the material to be formed in the stamping space;

[0009] A rotating part, the rotating part is connected to the first stamping part and / or the second stamping part, and can make the first stamping part and the plurality of second stamping units move relatively.

[0010] In some alternative embodiments, the first stamping part includes a plurality of first stamping units, and the plurality of first stamping units are respectively arranged corresponding to the plurality of second stamping units, and the first stamping units are movably arranged in a direction approaching the second stamping units.

[0011] In some alternative embodiments, each of the first stamping units includes an inclined wall, and the plurality of inclined walls enclose a pushing space, and the pushing space is gradually reduced in the height direction;

[0012] The forming device includes a pushing part, at least a part of the pushing part is arranged in the pushing space, and the pushing part is arranged in contact with the inclined wall, and the pushing part can move in the height direction to push the first stamping unit to move towards the second stamping unit.

[0013] In some alternative embodiments, the slopes of the plurality of inclined walls are the same, and the pushing part is respectively arranged in contact with the plurality of inclined walls on the same horizontal plane.

[0014] In some alternative embodiments, the first stamping unit includes a first stamping block and a first pushing block, the first stamping block and the first pushing block are detachably arranged, and the first pushing block is arranged in cooperation with the pushing part, and at least a part of the wall surface of the first stamping block facing away from the first pushing block is used for stamping the plastic material.

[0015] In some alternative embodiments, the forming device further includes an adjusting part, the adjusting part is arranged in the stamping space, and the adjusting part is connected to the first stamping part or the second stamping part, and is used for adjusting the depth of the plastic material entering the stamping space.

[0016] In some alternative embodiments, the adjusting part includes a plurality of adjusting units, the plurality of adjusting units are arranged around the first stamping part in a ring shape, and the plurality of adjusting units include contact ends in contact with the plastic material, and the plurality of contact ends are on the same horizontal plane.

[0017] In some alternative embodiments, the adjusting part includes a plurality of adjusting units, the plurality of adjusting units are arranged around the first stamping part in a ring shape, and the plurality of adjusting units include contact ends in contact with the plastic material, and at least two of the contact ends are not arranged on the same horizontal plane.

[0018] In some alternative embodiments, the second stamping unit includes a second stamping block and a second pushing block, the second stamping block and the second pushing block are detachably arranged, and at least a part of the wall surface of the second stamping block facing away from the second pushing block is used for stamping the plastic material.

[0019] In some alternative embodiments, the stamping space includes a material feeding opening which is arranged facing the height direction.

[0020] In some alternative embodiments, the first stamping part includes a supporting protrusion which is arranged below the stamping space along the height direction and is used to prevent the plastic material from separating from the stamping space.

[0021] In some alternative embodiments, the walls of the first stamping part and the second stamping part adjacent to the stamping space are arranged in a ring shape.

[0022] According to the second aspect of the embodiments of the present application, a production line is provided, and the production line includes the forming device according to any one of the above embodiments.

[0023] The beneficial technical effects brought by the technical solutions provided by the embodiments of the present application are as follows:

[0024] By providing the first stamping part, the second stamping part and the rotating part. The second stamping part includes a plurality of second stamping units, the plurality of second stamping units are arranged around the first stamping part, and the plurality of second stamping units and the first stamping part have a stamping space for placing the plastic material. The plurality of second stamping units can approach the first stamping part to stamp the plastic material in the stamping space, and the rotating part is connected to the first stamping part and / or the second stamping part and can drive the first stamping part to rotate.

[0025] Based on the above settings, after the plastic material is placed in the stamping space, the plurality of second stamping units approach the first stamping part to narrow the stamping space and stamp the plastic material, causing the plastic material to undergo a corresponding first deformation. After the first deformation, a forming area and a void area will be generated on the plastic material. Among them, the forming area corresponds to the stamping surfaces of the plurality of second stamping units, and the void area corresponds to the area between two adjacent second stamping units.

[0026] At this time, the plurality of second stamping units retreat to their original positions, and the rotating part drives the first stamping part and / or the second stamping part to rotate, so that the void area of the plastic material corresponds to the stamping surfaces of the second stamping units. Finally, the second stamping units approach the first stamping part again for secondary shaping, so that the void area of the plastic material is also formed. That is, the plastic material is completely stamped and deformed.

[0027] In summary, more comprehensive deformation of the plastic material can be achieved, the generation of void areas can be reduced, so that the produced products have better performance and higher precision. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 FIG. 4 is a schematic structural view of a molding device cooperating with a plastic material according to an embodiment of the present application.

[0030] Figure 2 FIG. 8 is a schematic cross-sectional view of a molding device according to an embodiment of the present application.

[0031] Figure 3 FIG. 12 is a schematic cross-sectional view of the molding device from another angle according to an embodiment of the present application.

[0032] Figure 4 FIG. 16 is a schematic structural view of a first stamping part according to an embodiment of the present application.

[0033] Figure 5 FIG. 20 is a schematic view of the cooperation of a plurality of first pushing blocks according to an embodiment of the present application.

[0034] Figure 6 FIG. 24 is a schematic view of the cooperation of a plurality of first stamping blocks according to an embodiment of the present application.

[0035] Figure 7 FIG. 28 is a schematic structural view of a second stamping part according to an embodiment of the present application.

[0036] Figure 8 FIG. 32 is a schematic view of the cooperation of a plurality of second stamping blocks according to an embodiment of the present application.

[0037] Figure 9 FIG. 36 is a schematic view of the cooperation of a plurality of second pushing blocks according to an embodiment of the present application.

[0038] Figure 10 FIG. 40 is a schematic structural view of an adjustment part according to an embodiment of the present application.

[0039] Figure 11 FIG. 44 is a schematic view of the cooperation of a first stamping unit and a second stamping unit according to an embodiment of the present application.

[0040] Figure 12 FIG. 48 is a schematic view of the cooperation of a first stamping unit, a second stamping unit, and a plastic material according to an embodiment of the present application.

[0041] Figure 13 FIG. 52 is a schematic structural view of a second stamping unit according to an embodiment of the present application.

[0042] Figure 14 Schematic structural diagram of the second pushing block shown according to an embodiment of the present application.

[0043] Figure 15 Schematic structural diagram of the second stamping block shown according to an embodiment of the present application.

[0044] Figure 16 Schematic structural diagram of the first stamping unit shown according to an embodiment of the present application.

[0045] Figure 17 Schematic structural diagram of the first pushing block shown according to an embodiment of the present application.

[0046] Figure 18 Schematic structural diagram of the first stamping block shown according to an embodiment of the present application.

[0047] Description of reference numerals

[0048] Molding device 10

[0049] Material to be molded 20

[0050] First stamping part 100

[0051] First stamping unit 110

[0052] Inclined wall 111

[0053] First stamping block 112

[0054] First pushing block 113

[0055] Supporting protrusion 114

[0056] Pushing space 120

[0057] Second stamping part 200

[0058] Second stamping unit 210

[0059] Second stamping block 211

[0060] Second pushing block 212

[0061] Stamping space 300

[0062] Feeding opening 310

[0063] Adjusting part 400

[0064] Adjusting unit 410

[0065] Contact end 411

[0066] Height direction Y Detailed implementation manners

[0067] Here, in conjunction with the accompanying drawings, the technical solutions in the embodiments (or "embodiment modes") of the present application will be clearly and completely described. When the following description involves the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0068] If there are terms related to directional indications or positional relationships in the embodiments of the present application (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, lateral, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), then such terms are only used to explain the relative positional relationship, movement conditions, etc. between components in a certain specific posture (as shown in the accompanying drawings); if this specific posture changes, then the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. involved in the embodiments of the present application are only for the purpose of convenient description and cannot be understood as indicating or implying relative importance. The phrase "and / or" used in the present application in the description and claims should be understood to mean "either one or both" of the elements so combined, that is, the elements presented in combination in some cases and separated in other cases.

[0069] Referring Figures 1-18 As shown, the present application provides a forming device 10, which includes a first stamping part 100, a second stamping part 200, and a rotating part (not shown in the figure). The second stamping part 200 includes a plurality of second stamping units 210. The plurality of second stamping units 210 are arranged around the first stamping part 100, and there is a stamping space 300 between the plurality of second stamping units 210 and the first stamping part 100. The stamping space 300 is used to place the material to be molded 20. The plurality of second stamping units 210 can approach the first stamping part 100 to stamp the material to be molded 20 in the stamping space 300. The rotating part is connected to the first stamping part 100 and / or the second stamping part, and can cause relative movement between the first stamping part 100 and the plurality of second stamping units 210. That is, it can drive the first stamping part 100 and / or the plurality of second stamping units 210 to rotate, and then relative displacement occurs.

[0070] It should be noted that the first stamping part 100 can be set to be circular, the second stamping part 200 can be set to be annular, and the second stamping part 200 is sleeved outside the first stamping part 100. That is, the walls of the first stamping part 100 and the second stamping part 200 close to the stamping space 300 are set to be annular. At the same time, the two walls are provided with corresponding grooves and protrusions, and the two approach each other to stamp the material to be molded 20, so that the material to be molded 20 obtains corresponding deformation. In addition, the above-mentioned material to be molded 20 can be a pipe, and of course it can also be other materials, as long as it is a material that needs to be stamped and formed, it is within the protection scope of the present application.

[0071] Based on the above settings, after the material to be molded 20 is placed in the stamping space 300, multiple second stamping units 210 approach the first stamping part 100 to narrow the stamping space 300 and stamp the material to be molded 20, causing the material to be molded 20 to undergo a corresponding first deformation. After the first deformation, a formed area and a void area will be generated on the material to be molded 20. Among them, the formed area corresponds to the stamping surfaces of the multiple second stamping units 210, and the void area corresponds to the area between two adjacent second stamping units 210.

[0072] At this time, the multiple second stamping units 210 retract to their original positions, and the first stamping part 100 and / or the second stamping part 200 are driven by the rotating part to rotate, so that the void area of the material to be molded 20 corresponds to the stamping surfaces of the second stamping units 210. Finally, the second stamping units 210 approach the first stamping part 100 again for secondary shaping, so that the void area of the material to be molded 20 is also formed. That is, the material to be molded 20 is completely stamped and deformed.

[0073] In summary, the present application can achieve more comprehensive deformation of the material to be molded 20, reduce the generation of void areas, so that the produced products have better performance and better precision.

[0074] In one embodiment, referring to Figures 1-3 as shown, the first stamping part 100 includes multiple first stamping units 110. The multiple first stamping units 110 are respectively arranged corresponding to the multiple second stamping units 210, and the first stamping units 110 are movably arranged in a direction approaching the second stamping units 210. That is, both the first stamping units 110 and the second stamping units 210 can move towards each other, and the stamping surfaces of the first stamping units 110 and the second stamping units 210 directly correspond.

[0075] Based on the above design, the first stamping part 100 can also move outwards, and thus can change the caliber size of the material to be molded 20 to adapt to materials to be molded 20 with different pipe diameters. And because both the first stamping units 110 and the second stamping units 210 can move towards each other, the material to be molded 20 can be subjected to the pressures from both the first stamping units 110 and the second stamping units 210, and thus a better plastic deformation effect can be obtained.

[0076] In addition, if it is necessary to perform bottom necking deformation on the plastic material 20, the bottom diameter of the plastic material 20 will become smaller at this time, and then it will get stuck on the first stamping part 100, making it very difficult to separate from the first stamping part 100. In the case of the present application, the first stamping part 100 of the first stamping part 100 can be moved outward to expand a certain diameter first, and then the plastic material 20 can be stamped and deformed. After the stamping deformation is completed, the first stamping part 100 can be moved inward to reduce the diameter, thereby facilitating the removal of the deformed plastic material 20.

[0077] In one embodiment, referring to Figure 2 , Figure 3 , Figure 11 , Figure 12 as shown, each first stamping unit 110 includes an inclined wall 111, and a plurality of inclined walls 111 enclose a pushing space 120, and the pushing space 120 is gradually reduced along the height direction Y. The forming device 10 includes a pushing part (not shown in the figure), at least part of the pushing part is arranged in the pushing space 120, and the pushing part is arranged in contact with the inclined wall 111, and the pushing part can move along the height direction Y to push the first stamping unit 110 towards the second stamping unit 210. It should be noted that the pushing part can be realized by a hydraulic push rod or other devices with linear displacement.

[0078] That is, the pushing part moves along the height direction Y and passes through the inclined wall 111, converting the vertical force into a horizontal force, and then pushing the first stamping unit 110 to move outward. In addition, if it is desired to move the first stamping unit 110 inward, on the one hand, multiple second stamping units 210 can be moved inward to stamp the first stamping unit 110 to return it to its original position. This method does not require setting other return devices and can better control the equipment cost. On the other hand, a moving device can also be separately set to be connected to multiple first stamping units 110 respectively, so as to return it to its original position.

[0079] By arranging the above-mentioned plurality of inclined walls 111 and enclosing a pushing space 120, a pushing part can be used to push multiple first stamping units 110 to move outward. This conversion method is more efficient and convenient than the case where each first stamping unit 110 is provided with a pushing part.

[0080] In one embodiment, continue to refer to Figure 2 , Figure 3 , Figure 11 , Figure 12 as shown, the slopes of the plurality of inclined walls 111 are the same, and the pushing part is arranged in contact with the plurality of inclined walls 111 on the same horizontal plane respectively. That is, during the rising process of the pushing part, it is in contact with each inclined wall 111 on the same horizontal plane at the same time and transmits power to it, so that multiple first stamping units 110 move outward simultaneously.

[0081] The slopes of the inclined walls 111 are the same. That is, when the pushing part is pushing, the moving speeds of each first stamping unit 110 can be made the same. As a result, the plastic materials 20 in the stamping space 300 corresponding thereto are stamped by the first stamping part 100 with the same effect, and thus a better plastic deformation effect can be obtained.

[0082] In one embodiment, referring to Figure 4 , Figure 5 , Figure 6 , Figure 16 , Figure 17 and Figure 18 as shown, the first stamping unit 110 includes a first stamping block 112 and a first pushing block 113. The first stamping block 112 and the first pushing block 113 are detachably arranged, and the first pushing block 113 is arranged in cooperation with the pushing part. At least part of the wall surface of the first stamping block 112 facing away from the first pushing block 113 is used for stamping the plastic material 20. The above-mentioned detachable arrangement can be realized by respectively arranging a protruding part and a recessed part on the first stamping block 112 and the first pushing block 113, which cooperate with each other and are fixed by a fixing device.

[0083] Based on the above arrangement, the first stamping block 112 can be replaced to realize the setting of multiple deformations with one set of equipment, which can be applicable to different plastic materials 20 and deformation requirements.

[0084] Referring to Figure 7 , Figure 8 , Figure 9 , Figure 13 , Figure 14 and Figure 15 as shown, the second stamping unit 210 includes a second stamping block 211 and a second pushing block 212. The second stamping block 211 and the second pushing block 212 are detachably arranged, and at least part of the wall surface of the second stamping block 211 facing away from the second pushing block 212 is used for stamping the plastic material 20. Similarly, a protruding part and a recessed part can be respectively arranged on the second stamping block 211 and the second pushing block 212, which cooperate with each other and are fixed by a fixing device.

[0085] That is, the second stamping block 211 can be replaced to realize the setting of multiple deformations with one set of equipment, which can be applicable to different plastic materials 20 and deformation requirements.

[0086] In Figure 2 and Figure 3 , a protrusion is provided at one end of the first stamping block 112 and the second stamping block 211 facing away from the stamping surface, while a recess is correspondingly provided on the first pushing block 113 and the second pushing block 212.

[0087] Each of the above-mentioned first stamping units 110 and second stamping units 210 is configured to have the protrusion and depression at the same position, which can improve the interchangeability of the product, thus facilitating replacement and repair when damaged, and other stamping shapes can also be designed and produced according to the existing standards of protrusions and depressions.

[0088] In one embodiment, referring to Figures 1-3 as shown, the stamping space 300 includes a material feeding opening 310, and the material feeding opening 310 is arranged facing the height direction Y.

[0089] Based on the above setting, since the material feeding opening 310 is arranged facing the height direction Y, the plastic material 20 can directly enter the stamping space 300 through the material feeding opening 310, and this process is simple and convenient. Moreover, since other parts of the plastic material 20 are located outside the stamping space 300, the normal state of other parts will not be affected. In this case, the forming device 10 can stamp the plastic material 20 in the shape of a bent pipe.

[0090] In one embodiment, referring to Figure 2 、 Figure 4 and Figure 10 as shown, the forming device 10 further includes an adjustment part 400. The adjustment part 400 is arranged in the stamping space 300, and the adjustment part 400 is connected to the first stamping part 100 or the second stamping part 200, and is used to adjust the depth of the plastic material 20 entering the stamping space 300.

[0091] By setting the adjustment part 400, the depth of the plastic material 20 entering the stamping space 300 can be accurately adjusted, so that the plastic position of the plastic material 20 can be more accurate, and thus a more standard product can be obtained. Moreover, it can be changed according to different plastic materials 20 and stamping positions to realize the setting of multiple stamping heights.

[0092] In one embodiment, continue to refer to Figure 2 、 Figure 4 and Figure 10 as shown, the adjustment part 400 includes a plurality of adjustment units 410. The plurality of adjustment units 410 are arranged around the first stamping part 100, and the plurality of adjustment units 410 include contact ends 411 that contact the plastic material 20, and the plurality of contact ends 411 are on the same horizontal plane. In Figure 10 , fixing holes are provided on the adjustment unit 410, and the adjustment unit 410 is detachably fixed to the first stamping part 100 through the fixing holes.

[0093] That is, the positions of the plastic material 20 arranged in the plurality of adjustment units 410 are on the same horizontal line, and the plastic material 20 is in a horizontal state. In this state, the plastic material 20 can be more closely matched with the first stamping part 100 and the second stamping part 200 to achieve a better stamping effect.

[0094] In one embodiment, continue to refer to Figure 2 , Figure 4 as well as Figure 10 As shown, the adjustment part 400 includes a plurality of adjustment units 410, which are arranged around the first stamping part 100, and the plurality of adjustment units 410 include contact ends 411 contacting the plastic material 20, and at least two contact ends 411 are not arranged on the same horizontal plane.

[0095] That is, at least two of the positions of the plastic material 20 arranged in the plurality of adjustment units 410 are located on different horizontal lines. At this time, the plastic material 20 is in a skewed state, thereby achieving more forms of stamping.

[0096] In one embodiment, reference Figure 2 , Figure 3 as well as Figure 11 As shown, the first stamping portion 100 includes a supporting protrusion 114 . The supporting protrusion 114 is disposed below the stamping space 300 along the height direction Y. The supporting protrusion 114 is used to prevent the plastic material 20 from escaping from the stamping space 300 .

[0097] This design can prevent the plastic material 20 from falling directly under the molding device 10, reduce manual errors in operation, and improve production efficiency. In addition, the support protrusion 114 can also provide a support point for the adjustment unit 410, so that it is well supported.

[0098] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without causing conflicts. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the drawings; all modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application should be included in the scope of protection of this application.

Claims

1. A molding device, characterized in that, The forming device comprises: A first stamping part; A second stamping part, wherein the second stamping part comprises a plurality of second stamping units, the plurality of second stamping units are arranged around the first stamping part, and a stamping space is provided between the plurality of second stamping units and the first stamping part, the stamping space is used for placing a plastic material, and the plurality of second stamping units can approach the first stamping part to stamp the plastic material in the stamping space; A rotating part, wherein the rotating part is connected to the first punching part and / or the second punching part, and can make the first punching part and the plurality of the second punching units move relative to each other.

2. The molding device according to claim 1, wherein The first punching part includes a plurality of first punching units, the plurality of first punching units are respectively arranged corresponding to the plurality of second punching units, and the first punching units can be moved toward a direction approaching the second punching units.

3. The molding device according to claim 2, characterized in that, Each of the first punching units includes an inclined wall, and a plurality of the inclined walls enclose a pushing space, and the pushing space is gradually reduced in height direction; The forming device includes a pushing portion, at least a portion of which is disposed in the pushing space, and the pushing portion is disposed in close contact with the inclined wall. The pushing portion can move along the height direction to push the first stamping unit toward the second stamping unit.

4. The molding device according to claim 3, wherein, The slopes of the multiple inclined walls are the same, and the pushing portion is respectively arranged in contact with the multiple inclined walls on the same horizontal plane.

5. The molding device according to claim 3, characterized in that The first stamping unit includes a first stamping block and a first pushing block, the first stamping block and the first pushing block are detachably arranged, and the first pushing block is matched with the pushing portion, and at least a portion of the wall of the first stamping block away from the first pushing block is used to stamp the plastic material.

6. The molding device according to claim 1, characterized in that, The molding device further includes an adjusting portion, which is disposed in the stamping space and connected to the first stamping portion or the second stamping portion, and is used to adjust the depth of the plastic material entering the stamping space.

7. The molding device according to claim 6, characterized in that, The adjusting portion includes a plurality of adjusting units, the plurality of adjusting units are arranged around the first stamping portion, and the plurality of adjusting units include contact ends contacting the plastic material, and the plurality of contact ends are on the same horizontal plane.

8. The molding device according to claim 6, wherein The adjusting portion includes a plurality of adjusting units, the plurality of adjusting units are arranged around the first stamping portion, and the plurality of adjusting units include contact ends contacting the plastic material, and at least two of the contact ends are not arranged on the same horizontal plane.

9. The molding device according to claim 1, characterized in that, The second punching unit comprises a second punching block and a second pushing block. The second punching block and the second pushing block are detachably arranged. At least a portion of the wall surface of the second punching block away from the second pushing block is used for punching the plastic material.

10. The molding device according to claim 1, characterized in that, The stamping space comprises a material discharge opening, and the material discharge opening is arranged in a height direction.

11. The molding device according to claim 10, characterized in that, The first stamping portion includes a supporting protrusion, which is arranged below the stamping space along the height direction, and is used to prevent the plastic material from escaping from the stamping space.

12. The molding device according to claim 1, characterized in that, The wall surfaces of the first punching portion and the second punching portion close to the punching space are arranged in a ring shape.

13. A production line, characterized in that, The production line includes a molding device as described in any one of claims 1-12.

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