molding die

Abstract

The application provides a forming die for manufacturing a product containing an embedded part to improve production efficiency, comprising a lower die for carrying a transmission part, an upper die matched with the lower die, a rotating assembly comprising a connecting part connected with the lower die and a winding wheel rotatably connected with the connecting part, the winding wheel being connected with the transmission part, a guide assembly comprising a mounting part and a guide part, the mounting part being connected with the lower die and being located on the same side of the winding wheel, a movable slot extending along a closing direction being formed on one side of the mounting part facing the lower die, the guide part being slidably arranged in the movable slot, the guide part being provided with a first recess and a second recess at two ends along the closing direction respectively, and a push-pull assembly comprising a push-pull part arranged on the upper die and extending from the upper die to the lower die, the push-pull part being provided with a convex body on a side away from the upper die and a plurality of tooth grooves arranged along the closing direction, when the die is closed, the tooth grooves are engaged with the winding wheel and the convex body is clamped in the first recess, and when the die is opened, the tooth grooves are separated from the winding wheel and the convex body is clamped in the second recess.

Description

Technical Field

[0001] This application relates to the field of injection molding technology, and more specifically to a molding die using insert molding. Background Technology

[0002] In the production of molded plastic products, when inserts are required, they are typically placed into the molding cavity manually or by a robot before injection molding. After injection molding is complete, the plastic product is then removed manually or by a robot. However, manual operation is too slow, severely impacting production progress and increasing the risk of safety accidents. Using robots, on the other hand, is too costly, and robots have long waiting times when inserting and removing plastic products. Utility Model Content

[0003] In view of the above, it is necessary to provide a molding die to improve production efficiency.

[0004] This application provides a molding die for manufacturing products containing inserts, including:

[0005] The lower mold is used to carry the transmission component, which is used to load the insert to be formed and the formed product;

[0006] The upper mold is adapted to the lower mold and forms an injection cavity when the mold is closed. The injection cavity is used to accommodate the insert to be molded and a part of the transfer member to form the product.

[0007] A rotating assembly includes a connector and a reel, the connector being connected to the lower die, the reel being rotatably connected to the connector, and the reel being connected to the transmission component;

[0008] A guiding assembly includes a mounting component and a guide component. The mounting component is connected to the lower mold and is located on the same side of the lower mold as the winding wheel. The mounting component has a movable groove extending in the mold-closing direction on its side facing the lower mold. The guide component is slidably disposed in the movable groove. The guide component has a first groove and a second groove at its two ends along the mold-closing direction, respectively.

[0009] A push-pull assembly includes a push-pull member, which is disposed on the upper mold and extends from the upper mold to the lower mold. The push-pull member has a protrusion on the side opposite to the upper mold and is provided with a plurality of toothed grooves, which are arranged along the mold closing direction.

[0010] When the molding die is in the closed state, the toothed grooves engage with the roller and the protrusion is held in the first groove. When the die is opened, the push-pull member moves with the upper die and drives the guide member to move upward, and drives the roller to rotate, so that the roller drives the transmission member to move and drive the product out of the injection cavity. After the guide member abuts against the top wall of the movable groove, the push-pull member continues to move upward, the protrusion disengages from the first groove and abuts against the guide member, so that the multiple toothed grooves disengage from the roller. After the protrusion enters the second groove, the guide member falls back to the bottom of the movable groove.

[0011] In some embodiments, the reel includes:

[0012] A spool is movably inserted into the mounting component, and one end of the spool is provided with a plurality of teeth, which are arranged along the circumference of the spool and are adapted to a plurality of tooth grooves;

[0013] The extension body is fixedly sleeved on the scroll.

[0014] Multiple positioning bodies are connected to the extension body and arranged circumferentially along the extension body for positioning the transmission component.

[0015] In some embodiments, the connector includes:

[0016] A sleeve is fitted onto the scroll.

[0017] The connecting body is detachably connected to both the sleeve body and the lower mold.

[0018] In some embodiments, there are two connectors, which are spaced apart along the axial direction of the reel.

[0019] In some embodiments, the movable groove includes a sliding groove and a limiting groove. The sliding groove is formed on the side of the mounting member facing the lower mold, and the limiting groove is formed on the bottom wall of the sliding groove. The width of the limiting groove along the axial direction of the roll is greater than the width of the sliding groove along the axial direction of the roll. The guide member includes a limiting body and a sliding body. The sliding body is slidably disposed in the sliding groove along the mold closing direction. The sliding body has a first groove and a second groove formed on the side facing the lower mold. The limiting body connects to the sliding body and is slidably disposed in the limiting groove along the mold closing direction. The width of the limiting body along the axial direction of the roll is greater than the width of the sliding groove along the axial direction of the roll.

[0020] In some embodiments, the mounting component includes:

[0021] The assembly has the movable groove on one side facing the lower mold, and the movable groove penetrates one side of the assembly along the mold closing direction;

[0022] The locking body is detachably connected to both the assembly and the lower mold.

[0023] The detachable assembly is detachably connected to the assembly and covers the movable slot.

[0024] In some embodiments, the push-pull member includes:

[0025] The mounting body is connected to the upper mold;

[0026] A pusher body is connected to the mounting body and extends along the mold closing direction. The pusher body is an elastic member and has a protrusion and multiple toothed grooves on the side opposite to the upper mold.

[0027] In some embodiments, the push-pull component includes a mounting body and a pusher body. The mounting body is movably embedded in the upper mold, and the pusher body is connected to the mounting body and extends along the mold closing direction. The pusher body has a protrusion and a plurality of toothed grooves on the side opposite to the upper mold. The push-pull assembly also includes an elastic element, which is embedded in the upper mold, and its two ends respectively abut against the upper mold and the mounting body.

[0028] In some embodiments, the push-pull assembly further includes:

[0029] A guide element is inserted into the mounting body and the elastic element.

[0030] In some embodiments, the transport member is used to load a plurality of inserts to be molded, the plurality of inserts to be molded being arranged sequentially along the moving direction of the transport member so as to enter the injection cavity sequentially under the drive of the transport member.

[0031] Before the molding process begins, the transfer component is placed on the lower mold in the open state, and the roller connects to the transfer component through the positioning hole. At this time, the toothed groove separates from the roller, and the protrusion separates from the guide. Multiple inserts to be molded are mounted on the transfer component. During operation, the upper mold is moved to achieve mold closing, causing the protrusion to slide and abut against the guide after entering the second groove. During this process, the roller remains stationary. After mold closing, the protrusion is held in the first groove, and the toothed groove engages with the roller. After injection molding, the upper mold is disengaged from the lower mold. The push-pull component, driven by the upper mold, moves upward through the protrusion and guide, and drives the roller to rotate. This causes the roller to move the transfer component, lifting the formed product out of the injection cavity and allowing the inserts to be molded into the injection cavity. After the guide abuts against the top wall of the movable groove, the upper mold continues to move the push-pull component upward, causing the protrusion to disengage from the first groove and abut against the guide. The guide pushes the push-pull component away from the roller by pushing against the protrusion. As the protrusion enters the second groove, the guide falls under its own weight to return to the bottom of the movable groove.

[0032] Therefore, the above-mentioned molding die can use push-pull components and rollers to carry the product out of the injection cavity and bring the insert to be molded into the injection cavity when the mold is opened, which saves the time of removing the product and putting in the insert to be molded, thereby improving production efficiency. Attached Figure Description

[0033] Figure 1 This is a structural schematic diagram of the transmission component and multiple inserts to be formed, applicable to embodiments of this application.

[0034] Figure 2 This is a schematic diagram of the molding die in an embodiment of this application.

[0035] Figure 3 for Figure 2 The diagram shows a cross-sectional view of part of the molding die along the AA direction.

[0036] Figure 4 for Figure 2 The diagram shows an exploded view of the rotating assembly, guiding assembly, and push-pull assembly in the forming mold.

[0037] Figure 5 for Figure 3 A cross-sectional schematic diagram of the second state of the structure shown.

[0038] Figure 6 for Figure 3 A cross-sectional schematic diagram of the third state of the structure shown.

[0039] Figure 7 for Figure 3 A cross-sectional schematic diagram of the fourth state of the structure shown.

[0040] Figure 8 for Figure 3 A cross-sectional schematic diagram of the fifth state of the structure shown.

[0041] Figure 9 for Figure 3 A cross-sectional schematic diagram of the sixth state of the structure shown.

[0042] Key component symbols: Molding mold 100, lower mold 110, upper mold 120, rotating assembly 130, connecting piece 131, sleeve body 1311, connecting body 1312, winding wheel 132, winding shaft 1321, tooth body 1321a, extension body 1322, positioning body 1323, guide assembly 140, mounting piece 141, movable groove 141a, sliding groove 141b, limiting groove 141c, assembly body 1411, locking body 1 412, disassembly body 1413, guide 142, first groove 142a, second groove 142b, limiting body 1421, sliding body 1422, push-pull assembly 150, push-pull component 151, protrusion 151a, toothed groove 151b, mounting body 1511, pushing body 1512, elastic component 152, guide 153, transmission component 200, first end 200a, second end 200b, positioning hole 200c, insert 300. Detailed Implementation

[0043] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0044] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows communication between the two; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. In the description of this application, it should be noted that "multiple" means two or more, unless otherwise expressly and specifically limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0045] The embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0046] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of the transmission component and the multiple inserts to be molded, applicable to embodiments of this application. Specifically, the transmission component 200 is generally strip-shaped, with a first end 200a and a second end 200b at its two ends along its length. Multiple inserts 300 to be molded and multiple positioning holes 200c are provided between the first end 200a and the second end 200b. Each positioning hole 200c has an insert 300 to be molded on both sides. During injection molding, the transmission component 200 enters from the first end 200a. In each injection molding process, a portion of the multiple inserts 300 to be molded, together with the injected plastic, form the desired product.

[0047] Please see Figure 2 and Figure 3This application provides a molding die 100 for manufacturing a product 200 containing an insert 300. The molding die 100 includes a lower die 110, an upper die 120, a rotating assembly 130, a guiding assembly 140, and a push-pull assembly 150. The lower die 110 is used to carry the transfer member 200, which is used to load the insert 300 to be molded and the molded product. The upper die 120 is adapted to the lower die 110 and forms an injection cavity when the die is closed. The injection cavity is used to accommodate the insert 300 to be molded and a portion of the transfer member 200 to form the product. The rotating assembly 130 includes a connector 131 and a roller 132. The connector 131 is connected to the lower die 110, and the roller 132 is rotatably connected to the connector 131 and connected to the transfer member 200. The guide assembly 140 includes a mounting member 141 and a guide member 142. The mounting member 141 is connected to the lower mold 110 and is located on the same side of the lower mold 110 as the roll 132. The mounting member 141 has a movable groove 141a extending in the mold closing direction on the side facing the lower mold 110. The guide member 142 is slidably disposed in the movable groove 141a. The guide member 142 has a first groove 142a and a second groove 142b at both ends along the mold closing direction. The push-pull assembly 150 includes a push-pull member 151. The push-pull member 151 is disposed on the upper mold 120 and extends in the direction from the upper mold 120 toward the lower mold 110. The side of the push-pull member 151 facing away from the upper mold 120 has a protrusion 151a and multiple toothed grooves 151b, which are arranged along the mold closing direction. When the molding die 100 is in the closed state, the toothed groove 151b engages with the roller 132 and the protrusion 151a is held in the first groove 142a. When the die is opened, the push-pull member 151 moves with the upper die 120 and drives the guide member 142 to move upward, and drives the roller 132 to rotate, so that the roller 132 drives the transmission member 200 to move to drive the product out of the injection cavity. After the guide member 142 abuts against the top wall of the stop groove 141a, the push-pull member 151 continues to move upward, the protrusion 151a disengages from the first groove 142a and abuts against the guide member 142, so that multiple toothed grooves 151b disengage from the roller 132. After the protrusion 151a enters the second groove 142b, the guide member 142 falls back to the bottom of the stop groove 141a.

[0048] Before the molding die 100 is operated, the transfer component 200 is placed on the lower die 110 in the open state, and the winding wheel 132 is connected to the transfer component 200 through the positioning hole 200c. At this time, the toothed groove 151b is separated from the winding wheel 132, and the protrusion 151a is separated from the guide 142. Multiple inserts 300 to be formed are provided on the transfer component 200. During operation, the upper die 120 is moved to achieve mold closing, so that the protrusion 151a slides and abuts against the guide 142 after entering the second groove 142b. During this process, the winding wheel 132 remains stationary. After the mold closing is completed, the protrusion 151a is stuck in the first groove 142a, and the toothed groove 151b is engaged with the winding wheel 132. After injection molding is completed, the upper mold 120 disengages from the lower mold 110. Driven by the upper mold 120, the push-pull component 151 moves upward via the protrusion 151a, driving the guide component 142 to rotate. This causes the roller 132 to rotate, moving the transmission component 200 to disengage the formed product from the injection cavity and allowing the insert 300 to be molded to enter the injection cavity. After the guide component 142 abuts against the top wall of the stop groove 141a, the upper mold 120 continues to move the push-pull component 151 upward, causing the protrusion 151a to disengage from the first groove 142a and abut against the guide component 142. The guide component 142 pushes against the protrusion 151a, causing the push-pull component 151 to disengage from the roller 132. After the protrusion 151a enters the second groove 142b, the guide component 142 falls back to the bottom of the stop groove 141a under its own weight.

[0049] Therefore, the above-mentioned molding die 100 can bring the product out of the injection cavity through the push-pull component 151 and the roll roller 132 when the mold is opened, and bring the insert 300 to be molded into the injection cavity, which saves the time of removing the product and putting in the insert 300 to be molded, which is conducive to improving production efficiency.

[0050] It should be noted that the multiple inserts 300 to be molded are arranged sequentially along the moving direction of the transfer member 200, so as to enter the injection cavity sequentially under the drive of the transfer member 200. The moving direction of the transfer member 200 is the direction from the second end 200b to the first end 200a.

[0051] Please see Figure 2 and Figure 4 In some embodiments, the reel 132 includes a reel 1321, an extension 1322, and a plurality of positioning bodies 1323. The reel 1321 is movably inserted into the mounting member 141, and one end of the reel 1321 is provided with a plurality of teeth 1321a. The plurality of teeth 1321a are arranged circumferentially along the reel 1321 and are adapted to a plurality of tooth grooves 151b. The extension 1322 is fixedly sleeved on the reel 1321. The plurality of positioning bodies 1323 are all connected to the extension 1322 and arranged circumferentially along the extension 1322, and are used to insert into the positioning hole 200c to position the transmission member 200.

[0052] In this embodiment, the spool 1321, the extension body 1322 and the multiple positioning bodies 1323 are integrated into one structure to reduce the processing difficulty of the spool 132.

[0053] Please see Figure 2 and Figure 4 In some embodiments, the connector 131 includes a sleeve body 1311 and a connecting body 1312. The sleeve body 1311 is sleeved on the scroll 1321, and the connecting body 1312 is detachably connected to the sleeve body 1311 and the lower mold 110, respectively.

[0054] Therefore, by adopting the above-mentioned settings, the difficulty of assembling and disassembling the connector 131 and the roller 132 can be reduced, thereby reducing the assembly and disassembly efficiency of the forming mold 100.

[0055] Please see Figure 4 In some embodiments, there are two connectors 131, which are spaced apart along the axial direction of the reel 1321.

[0056] Therefore, the two connecting parts 131 can reduce the shaking of the reel 132 during rotation, which helps to improve the stability of the reel 132 rotation.

[0057] Please see Figure 3 and Figure 4 In some embodiments, the movable groove 141a includes a sliding groove 141b and a limiting groove 141c. The sliding groove 141b is formed on the side of the mounting member 141 facing the lower mold 110, and the limiting groove 141c is formed on the bottom wall of the sliding groove 141b. The width of the limiting groove 141c along the axial direction of the scroll 1321 is greater than the axial width of the scroll 1321 of the sliding groove. The guide member 142 includes a limiting body 1421 and a sliding body 1422. The sliding body 1422 is slidably disposed in the sliding groove 141b along the mold closing direction. The sliding body 1422 has a first groove 142a and a second groove 142b on the side facing the lower mold 110. The limiting body 1421 is connected to the sliding body 1422 and is slidably disposed in the limiting groove 141c along the mold closing direction. The axial width of the limiting body 1421 on the scroll 1321 is greater than the axial width of the scroll 1321 of the sliding groove 141b.

[0058] Therefore, the limiting body 1421 and the sliding body 1422 form a stepped structure, and the sliding groove 141b and the limiting groove 141c form a stepped structure, which can prevent the guide member 142 from disengaging from the movable groove 141a when sliding relative to the movable groove 141a.

[0059] Please see Figure 4In some embodiments, the mounting component 141 includes an assembly 1411, a locking body 1412, and a disassembly body 1413. The assembly 1411 has a movable groove 141a on the side facing the lower mold 110. The movable groove 141a extends through one side of the assembly 1411 along the mold closing direction. The locking body 1412 is detachably connected to both the assembly 1411 and the lower mold 110. The disassembly body 1413 is detachably connected to the assembly 1411 and covers the movable groove 141a.

[0060] Therefore, the above-mentioned arrangement facilitates the assembly and disassembly of the mounting component 141 and the guide component 142, as well as the assembly and disassembly of the mounting component 141 and the lower mold 110.

[0061] In this embodiment, the locking body 1412 can be a screw, and the number of locking bodies 1412 is four.

[0062] Please see Figure 3 and Figure 4 In some embodiments, the push-pull component 151 includes a mounting body 1511 and a pushing body 1512. The mounting body 1511 is movably embedded in the upper mold 120. The pushing body 1512 is connected to the mounting body 1511 and extends along the mold closing direction. The side of the pushing body 1512 opposite to the upper mold 120 has a protrusion 151a and multiple toothed grooves 151b. The push-pull assembly 150 also includes an elastic element 152, which is embedded in the upper mold 120, and its two ends respectively abut against the upper mold 120 and the mounting body 1511. Exemplarily, the elastic element 152 can be a spring.

[0063] Therefore, the push-pull member 151 can be automatically reset by the elastic element 152.

[0064] In some embodiments, the push-pull assembly 150 further includes a guide 153. The guide 153 passes through the mounting body 1511 and the elastic member 152.

[0065] Therefore, the guide 153 can prevent the elastic element 152 from swaying in its radial direction, which helps to improve the stability of the push-pull element 151 movement.

[0066] In some embodiments, the mounting body 1511 and the pusher body 1512 are an integral structure, which helps to reduce the manufacturing cost of the push-pull component 151.

[0067] It should be noted that in other embodiments, the push-pull assembly 150 may also include only the push-pull member 151. Specifically, the push-pull member 151 includes a mounting body 1511 and a pusher body 1512. The mounting body 1511 is connected to the upper mold 120, and the pusher body 1512 is connected to the mounting body 1511 and extends along the mold closing direction. The pusher body 1512 is an elastic member and has a protrusion 151a and multiple toothed grooves 151b on the side facing away from the upper mold 120. During operation, the pusher body 1512 achieves reset through its own elastic structure.

[0068] The working process of the above-mentioned molding die 100 during injection molding is roughly as follows:

[0069] When the molding die 100 is in the closed state, the protrusion 151a is held in the first groove 152a, and the multiple toothed grooves 151b mesh with the multiple teeth 1321a of the rolling wheel 132 to form a shape as shown in the figure. Figure 3 The cross-sectional schematic diagram shown.

[0070] When the upper mold 120 and the lower mold 110 separate, the push-pull member 151 drives the guide member 142 to move upward through the protrusion 151a until the guide member 142 abuts against the disassembly body 1413 of the mounting member 141, thus forming a shape as shown. Figure 5 The cross-sectional schematic diagram shows that during this process, the push-pull member 151 drives the roller 132 to rotate, so that the roller 132 drives the product out of the injection cavity through the transmission member 200, and drives the insert 300 to be molded into the injection cavity.

[0071] When the guide member 142 abuts against the disassembly body 1413 of the mounting member 141, it continues to drive the upper mold 120 to move. The protrusion 151a then disengages from the first groove 142a and pushes against the guide member 142 located between the first groove 142a and the second groove 142b. Under the pushing action of the guide member 142, the push-pull member 151 moves towards the upper mold 120. At this time, the elastic member 152 is compressed by the mounting body 1511, thereby forming a shape as shown in the figure. Figure 6 The cross-sectional schematic diagram shown.

[0072] When the protrusion 151a moves to the corresponding position in the second groove 142b, the force between the protrusion 151a and the guide member 142 disappears. The elastic force released by the elastic member 152 drives the push-pull member 151 away from the upper mold 120, so that the protrusion 151a enters the second groove 142b. After the protrusion 151a enters the second groove 142b, the guide member 142 falls back to the bottom of the movable groove 141a under its own gravity, thus forming a... Figure 7 The cross-sectional schematic diagram shown.

[0073] When the upper mold 120 and the lower mold 110 are closed, the upper mold 120 drives the push-pull member 151 to move downward. The protrusion 151a of the push-pull member 151 first enters the second groove 142b to form as shown. Figure 8 The cross-sectional schematic diagram shows that the upper mold 120 drives the push-pull member 151 to continue moving downwards. The protrusion 151a is squeezed by the guide member 142 and moves towards the upper mold 120. The elastic member 152 is compressed, and the multiple toothed grooves 151b separate from the multiple toothed bodies 1321a. The roller 132 does not rotate, forming a shape as shown. Figure 9 The cross-sectional schematic diagram shown.

[0074] When the protrusion 151a moves to correspond with the first groove 142a, the elastic force released by the elastic member 152 pushes the push-pull member 151 to be engaged in the first groove 142a.

[0075] It will be apparent to those skilled in the art that this application is not limited to the details of the exemplary embodiments described above, and that this application can be implemented in other specific forms without departing from the spirit or essential characteristics of this application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of this application is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be embraced within this application.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A molding die for manufacturing products containing inserts, characterized in that, The molding die includes: The lower mold is used to carry the transmission component, which is used to load the insert to be formed and the formed product; The upper mold is adapted to the lower mold and forms an injection cavity when the mold is closed. The injection cavity is used to accommodate the insert to be molded and a part of the transfer member to form the product. A rotating assembly includes a connector and a reel, the connector being connected to the lower die, the reel being rotatably connected to the connector, and the reel being connected to the transmission component; A guiding assembly includes a mounting component and a guide component. The mounting component is connected to the lower mold and is located on the same side of the lower mold as the winding wheel. The mounting component has a movable groove extending in the mold-closing direction on its side facing the lower mold. The guide component is slidably disposed in the movable groove. The guide component has a first groove and a second groove at its two ends along the mold-closing direction, respectively. A push-pull assembly includes a push-pull member, which is disposed on the upper mold and extends from the upper mold to the lower mold. The push-pull member has a protrusion on the side opposite to the upper mold and is provided with a plurality of toothed grooves, which are arranged along the mold closing direction. When the molding die is in the closed state, the toothed grooves engage with the roller and the protrusion is held in the first groove. When the die is opened, the push-pull member moves with the upper die and drives the guide member to move upward, and drives the roller to rotate, so that the roller drives the transmission member to move and drive the product out of the injection cavity. After the guide member abuts against the top wall of the movable groove, the push-pull member continues to move upward, the protrusion disengages from the first groove and abuts against the guide member, so that the multiple toothed grooves disengage from the roller. After the protrusion enters the second groove, the guide member falls back to the bottom of the movable groove.

2. The molding die as described in claim 1, characterized in that, The reel includes: A spool is movably inserted into the mounting component, and one end of the spool is provided with a plurality of teeth, which are arranged along the circumference of the spool and are adapted to a plurality of tooth grooves; The extension body is fixedly sleeved on the scroll. Multiple positioning bodies are connected to the extension body and arranged circumferentially along the extension body for positioning the transmission component.

3. The molding die as described in claim 2, characterized in that, The connector includes: A sleeve is fitted onto the scroll. The connecting body is detachably connected to both the sleeve body and the lower mold.

4. The molding die as described in claim 3, characterized in that, There are two connectors, which are spaced apart along the axial direction of the reel.

5. The molding die as described in claim 2, characterized in that, The movable groove includes a sliding groove and a limiting groove. The sliding groove is opened on the side of the mounting part facing the lower mold, and the limiting groove is opened on the bottom wall of the sliding groove. The width of the limiting groove along the axial direction of the scroll is greater than the width of the sliding groove along the axial direction of the scroll. The guide includes a limiting body and a sliding body. The sliding body is slidably disposed in the sliding groove along the mold closing direction, and the sliding body has a first groove and a second groove on the side facing the lower mold. The limiting body is connected to the sliding body and is slidably disposed in the limiting groove along the mold closing direction, and the width of the limiting body along the axial direction of the roll is greater than the width of the sliding groove along the axial direction of the roll.

6. The molding die as described in claim 5, characterized in that, The mounting component includes: The assembly has the movable groove on one side facing the lower mold, and the movable groove penetrates one side of the assembly along the mold closing direction; The locking body is detachably connected to both the assembly and the lower mold. The detachable assembly is detachably connected to the assembly and covers the movable slot.

7. The molding die as described in claim 1, characterized in that, The push-pull component includes: The mounting body is connected to the upper mold; A pusher body is connected to the mounting body and extends along the mold closing direction. The pusher body is an elastic member and has a protrusion and multiple toothed grooves on the side opposite to the upper mold.

8. The molding die as described in claim 1, characterized in that, The push-pull component includes a mounting body and a pusher body. The mounting body is movably embedded in the upper mold. The pusher body is connected to the mounting body and extends along the mold closing direction. The side of the pusher body opposite to the upper mold has the protrusion and multiple toothed grooves. The push-pull assembly also includes an elastic element, which is embedded in the upper mold, and the two ends of the elastic element respectively abut against the upper mold and the mounting body.

9. The molding die as described in claim 8, characterized in that, The push-pull assembly also includes: A guide element is inserted into the mounting body and the elastic element.

10. The molding die as described in claim 1, characterized in that, The transport member is used to load a plurality of inserts to be formed. The plurality of inserts to be formed are arranged sequentially along the moving direction of the transport member so as to enter the injection cavity sequentially under the drive of the transport member.

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