Handlebar front cover injection molding equipment

Abstract

The invention relates to the technical field of injection molding, in particular to handlebar front cover injection molding equipment which comprises an injection molding table, a mold is arranged on the injection molding table and comprises a driving part, an upper mold and a lower mold, mold grooves are formed in the upper mold and the lower mold and can be matched with each other to form a cavity, and the driving part is used for driving the upper mold to move towards or away from the lower mold; a feeding block is arranged in the lower die and corresponds to the shape of a product, an embedding groove is formed in the feeding block, a threaded sleeve is detachably arranged in the embedding groove, the threaded sleeve can be embedded in the embedding groove, a core pulling rod is further arranged in the feeding block, the core pulling rod can stretch into the threaded sleeve and abut against the inner wall of the threaded sleeve, and the core pulling rod is fixedly connected with the feeding block. The feeding block is connected into the lower die in a sliding mode, a pushing piece is further arranged in the lower die, and the pushing piece is used for pushing the feeding block to move towards or away from the product. The screw sleeve can be wrapped inside during injection molding, overall machining is more convenient, a product is not prone to being damaged, and the production efficiency of the product can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding, in particular to an injection molding device for a handlebar front cover. Background Art

[0002] The electric vehicle is made by injection molding of various components, which are then spliced ​​together to form the shell of the battery vehicle, and the various components are then filled in. Although this manufacturing method requires a large number of molds, the complexity of the molds is relatively low, and it is also easy to check after the injection molding is completed, thereby improving the convenience of overall manufacturing.

[0003] The front cover of the steering handle is the shell of the steering handle of the electric vehicle. The front cover of the steering handle needs to be used for installation, and bolt holes are usually required. Plastic bolt holes are easily damaged. Therefore, under the existing technology, metal screw sleeves are usually inserted after injection molding. There are many steps, and it is also easy to cause damage to the product when drilling into the screw sleeves, which has a great impact on the production efficiency of the product. Summary of the invention

[0004] In order to solve the problem that the metal screw sleeve is inserted after injection molding in the prior art, which has many steps and is prone to damage to the product when drilling into the screw sleeve, which has a great impact on the production efficiency of the product, the present application provides a front cover injection molding device in a direction, and the specific solution is as follows.

[0005] A front cover injection molding device for a steering handle, comprising an injection molding table, a mold arranged on the injection molding table, the mold comprising a driving member, an upper mold and a lower mold, mold grooves are provided in the upper mold and the lower mold, the mold grooves can cooperate with each other to form a cavity, and the driving member is used to drive the upper mold to move toward or away from the lower mold; A feeding block is arranged in the lower mold, and the feeding block is arranged corresponding to the shape of the product. An embedding groove is provided on the feeding block, and a screw sleeve is detachably arranged in the embedding groove. The screw sleeve can be embedded in the embedding groove, and a gap for injection molding is left between the screw sleeve and the groove wall of the embedding groove. A core pulling rod is also arranged in the feeding block, and the core pulling rod can extend into the screw sleeve and abut against the inner wall of the screw sleeve, and the core pulling rod is fixedly connected to the feeding block; The feeding block is slidably connected in the lower die, and a pushing member is also arranged in the lower die, and the pushing member is used to push the feeding block to move toward or away from the product.

[0006] By adopting the above technical scheme and setting a feeding block, the screw sleeve can be placed in the embedding groove of the feeding block before injection molding, and the screw sleeve is wrapped by the injection molding material during injection molding. After the injection molding is completed, the product can be solidified and then the feeding block can be pulled out to pull the core pulling rod out of the screw sleeve, thereby achieving demoulding. The screw sleeve can be wrapped therein during injection molding, and there is no need to insert the screw sleeve during subsequent processing. The overall processing is more convenient, and it is not easy to cause damage to the product, which can effectively improve the production efficiency of the product.

[0007] Optionally, it also includes a transverse linear mechanism and a longitudinal linear mechanism, wherein the transverse linear mechanism is slidably connected to the longitudinal linear mechanism and slides along the longitudinal linear mechanism, the transverse linear mechanism is provided with a vertical linear mechanism, and the vertical linear mechanism slides laterally along the transverse linear mechanism, the vertical linear mechanism is provided with a clamping rod, and the clamping rod slides vertically along the vertical linear mechanism, a clamping frame is provided at the bottom of the clamping rod, the clamping frame is provided perpendicular to the clamping rod and can extend between the upper mold and the lower mold, and a clamping claw is provided on the clamping frame, and the clamping claw is used to clamp the injection molded product.

[0008] By adopting the above technical solution, the front cover injection molding equipment is added with a horizontal linear mechanism and a vertical linear mechanism, so that the clamping rod can move freely in both horizontal and vertical directions. This not only improves the degree of automation and reduces manual intervention, but also ensures that the clamping claw can accurately enter the position between the upper mold and the lower mold, thereby efficiently and stably clamping the completed injection molded products, improving production efficiency and product quality.

[0009] Optionally, a feed claw is further provided on the clamping frame, and the feed claw is arranged corresponding to the position of the feed block, and the feed claw is used to clamp the screw sleeve and feed it into the feed block.

[0010] By adopting the above technical solution, the feed claw is set in the position corresponding to the feed block, ensuring that the screw sleeve can be clamped in the correct position and fed into the embedding groove in the feed block, avoiding the error and time waste that may be caused by manual operation. This not only improves the stability and reliability of the injection molding process, but also reduces labor costs.

[0011] Optionally, it also includes a material placement table, on which a material placement seat and a material storage basket are provided. The material placement seat is arranged corresponding to the shape of the product, the material placement seat is used to place the product, and the material storage basket is used to place the screw sleeve.

[0012] By adopting the above technical solutions, the material placement seat on the material placement table not only facilitates operators to quickly locate products and reduce assembly time, but also ensures the stability of products during subsequent processing. At the same time, the storage basket is specially used to store screw sleeves, which is convenient for access, avoiding production interruptions caused by searching for screw sleeves, and further improving the overall work efficiency of the production line.

[0013] Optionally, the pushing member includes a pushing cylinder and a pushing block, the piston rod of the pushing cylinder is fixedly connected to the pushing block, the pushing block can move along the lower mold, and the pushing block is used to push the feeding block to move.

[0014] By adopting the above technical solution, the push cylinder provides a stable thrust, so that the push block can move smoothly in the lower mold, thereby driving the feed block to move toward or away from the product. This design not only improves the movement accuracy of the feed block, but also enhances the overall stability of the equipment, ensuring the smooth progress of the injection molding process.

[0015] Optionally, a guiding slope is provided on the pushing block, the feeding block is slidably connected to the guiding slope and can move along the guiding slope, and when the pushing block moves toward the pushing cylinder, the pushing block can pull the feeding block to move toward a side away from the die groove.

[0016] By adopting the above technical solution and setting a guiding slope, the feeding block can move along the guiding slope. During the movement, the feeding block moves in the vertical direction, so that the feeding block can be driven, thereby realizing various actions such as demoulding.

[0017] Optionally, a conical head is provided on one side of the core pulling rod close to the mold groove, and the conical head can guide the screw sleeve to be arranged toward the inside.

[0018] By adopting the above technical solution, the design of the conical head can effectively guide the screw sleeve to smoothly enter the embedding groove in the feed block, ensuring that the screw sleeve is accurately installed in place, thereby improving production efficiency and product quality.

[0019] Optionally, an elastic locating pin is provided on the side wall of the core pulling rod, and a locating hole corresponding to the elastic locating pin is opened on the screw sleeve, the locating hole is for the elastic locating pin to extend into, the elastic locating pin is slidably connected to the core pulling rod and has a tendency to move away from the core pulling rod, and one end of the elastic locating pin extending out of the core pulling rod is set to an arc shape, and the screw sleeve can push the elastic locating pin to move toward the inside of the core pulling rod when it is sent in.

[0020] By adopting the above technical solution, when the screw sleeve is extended, the elastic positioning pin can be pressed down, and when the elastic positioning pin is aligned with the positioning hole, the elastic positioning pin extends into the positioning hole, thereby fixing the position of the screw sleeve, reducing the movement of the screw sleeve during the injection molding process and affecting the injection molding, improving the fixing effect of the screw sleeve, and reducing the deviation of the screw sleeve during injection molding.

[0021] Optionally, a pit is provided on the outer wall of the screw sleeve, and a heating element is arranged in the elastic positioning pin, and the heating element can abut against and heat the screw sleeve.

[0022] By adopting the above technical scheme, a pit is opened on the outer wall of the screw sleeve, which can form a closer interference with the screw sleeve after the injection molding solidifies, reduce the situation of the screw sleeve falling off after the injection molding is completed, and improve product quality. Since the screw sleeve is one of the last positions reached by the material during injection molding, the material may have solidified when it reaches the screw sleeve, resulting in the inability to wrap the screw sleeve tightly. The setting of a heating element can heat the screw sleeve, so that the temperature of the screw sleeve rises. By raising the temperature of the screw sleeve, the material will melt again when it flows to the side of the screw sleeve during injection molding, and better cooperate with the pit of the screw sleeve to wrap the screw sleeve, further improving the wrapping effect of the screw sleeve.

[0023] Optionally, a spiral cooling groove is further provided in the core pulling rod, and the spiral cooling groove is arranged along the core pulling rod and on a side away from the mold cavity, and the line connecting the heating element and the power supply is arranged along the spiral cooling groove.

[0024] By adopting the above technical solution, a spiral cooling groove is opened at the end of the core pulling rod away from the mold groove, which can not only provide a passage for the power cord of the heating element, but also improve the heat dissipation effect of the core pulling rod. After the heating element completes its work, the end away from the mold groove can quickly dissipate the heat, so that the material can be cooled faster, further improving production efficiency.

[0025] In summary, this application has at least the following beneficial effects: The present application solves the problem that in the prior art, the metal sleeve is inserted after injection molding, which has many steps and is prone to damage to the product when drilling into the sleeve, which has a great impact on the production efficiency of the product. The present application wraps the sleeve in the product during the injection molding process, and the sleeve does not need to be installed later. Not only is the production efficiency higher, but it is also not easy to cause damage to the product, thereby improving the production efficiency.

[0026] The present application also opens pits on the outer wall of the screw sleeve to form a more stable fit with the injection molding material, which can further improve the stability of the screw sleeve after injection molding. At the same time, the screw sleeve is heated by a heating element during injection molding, which reduces the situation where the injection molding material cools down before completely wrapping the screw sleeve, and reduces the situation where the screw sleeve is not stably fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a stereogram of this embodiment.

[0028] Figure 2 It is a cross-sectional view of the mold in this embodiment.

[0029] Figure 3 It is a stereoscopic diagram of this embodiment, mainly used to show the material placement table.

[0030] Figure 4 It is a cross-sectional view of the feeding block in this embodiment.

[0031] Description of reference numerals: 1. Injection molding table; 2. mold; 21. driving member; 22. upper mold; 221. mold groove; 23. lower mold; 231. pushing member; 232. pushing cylinder; 233. pushing block; 234. guiding inclined plane; 3. Feeding block; 31. Core pulling rod; 311. Conical head; 312. Elastic positioning pin; 313. Heating element; 314. Spiral cooling groove; 32. Embedding groove; 4. Screw sleeve; 41. Positioning hole; 42. Concave pit; 5. Horizontal linear mechanism; 51. Vertical linear mechanism; 52. Clamping rod; 521. Clamping frame; 522. Clamping claw; 523. Feeding claw; 53. Longitudinal linear mechanism; 6. Material placing table; 61. Material placing seat; 62. Material storage basket; DETAILED DESCRIPTION

[0032] The present application is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0033] A direction to the front cover injection molding equipment, such as Figure 1 and Figure 2 As shown, it includes an injection molding table 1, on which a mold 2 is arranged, and the mold 2 includes a driving member 21, an upper mold 22 and a lower mold 23. A mold groove 221 is provided in each of the upper mold 22 and the lower mold 23, and the mold groove 221 can cooperate with each other to form a cavity, and the driving member 21 is used to drive the upper mold 22 to move toward or away from the lower mold 23. In specific implementation, the driving member 21 includes a cylinder, an oil cylinder, etc., and during injection molding, the upper mold 22 is pushed toward the lower mold 23 to inject the injection material into the mold groove 221, and after the injection material is formed, it can be waited for solidification to complete the production.

[0034] like Figure 2 and Figure 3As shown, a feed block 3 is provided in the lower mold 23, and the feed block 3 is set corresponding to the shape of the product. An embedding groove 32 is opened on the feed block 3, and a screw sleeve 4 is detachably provided in the embedding groove 32. The screw sleeve 4 can be embedded in the embedding groove 32, and a gap for injection molding is left between the screw sleeve 4 and the groove wall of the embedding groove 32. A core pulling rod 31 is also provided in the feed block 3, and the core pulling rod 31 can be extended into the screw sleeve 4 and abut against the inner wall of the screw sleeve 4. The core pulling rod 31 is fixedly connected to the feed block 3, and the feed block 3 is slidably connected in the lower mold 23. A pushing member 231 is also provided in the lower mold 23, and the pushing member 231 is used to push the feed block 3 to move toward or away from the product. In specific implementation, when injection molding is carried out, the screw sleeve 4 can be directly wrapped by the injection molding material. After the injection molding is completed, only the feeding block 3 needs to be pulled out, and the core pulling rod 31 can also be pulled out. At this time, the product can be demoulded normally. Due to the blocking of the core pulling rod 31, the screw sleeve 4 will not be blocked and cannot be installed. It can be used for installation after being removed, and there is no need to install the screw sleeve 4 additionally, which further improves the production efficiency.

[0035] like Figure 1 and Figure 4 As shown, it also includes a transverse linear mechanism 5 and a longitudinal linear mechanism 53. The transverse linear mechanism 5 is slidably connected to the longitudinal linear mechanism and slides along the longitudinal linear mechanism 53. The transverse linear mechanism 5 is provided with a vertical linear mechanism 51, which slides transversely along the transverse linear mechanism 5. The vertical linear mechanism 51 is provided with a clamping rod 52, which slides vertically along the vertical linear mechanism 51. The bottom of the clamping rod 52 is provided with a clamping frame 521, which is arranged perpendicular to the clamping rod 52 and can extend between the upper mold 22 and the lower mold 23. The clamping frame 521 is provided with a clamping claw 522, which is used to clamp the product after injection molding. In specific implementation, the transverse linear mechanism 5 and the longitudinal linear mechanism 53 can drive the clamping rod 52 to move and position on the transverse coordinate, and can accurately position the coordinates in three-dimensional space in cooperation with the vertical linear mechanism 51, and the clamping rod 52 is convenient for extending into the mold 2 during clamping, thereby clamping the molded product.

[0036] like Figure 1 and Figure 4 As shown, the clamping frame 521 is also provided with a feed claw 523, and the feed claw 523 is arranged corresponding to the position of the feed block 3, and the feed claw 523 is used to clamp the screw sleeve 4 and feed it into the feed block 3. In specific implementation, the feed claw 523 is aligned with the position of the screw sleeve 4, and the clamping claw 522 is aligned with the position of the product, which can successively clamp the product and supplement the screw sleeve 4, and can further improve the production efficiency. In other embodiments, when multiple screw sleeves 4 need to be placed at one time, multiple feed claws 523 can be set to clamp and place the screw sleeve 4 at the same time, further improving the production efficiency.

[0037] like Figure 1 and Figure 4 As shown, it also includes a material placement table 6, on which a material placement seat 61 and a material storage basket 62 are provided. The material placement seat 61 is set corresponding to the shape of the product, the material placement seat 61 is used to place the product, and the material storage basket 62 is used to place the screw sleeve 4. In specific implementation, the material placement table 6 is set independently of the injection molding table 1. The material placement table 6 can store the finished products for film application and other operations, and can also store the screw sleeve 4 for the feed claw 523 to clamp. In other embodiments, a corresponding conveying mechanism can also be set to feed the screw sleeves 4 one by one to further improve the convenience of processing.

[0038] like Figure 2 and Figure 3 As shown, the push member 231 includes a push cylinder 232 and a push block 233. The piston rod of the push cylinder 232 is fixedly connected to the push block 233. The push block 233 can move along the lower die 23. The push block 233 is used to push the feed block 3 to move. A guide slope 234 is provided on the push block 233. The feed block 3 is slidably connected to the guide slope 234 and can move along the guide slope 234. When the push block 233 moves toward the push cylinder 232, the push block 233 can pull the feed block 3 to move toward the side away from the die groove 221. In specific implementation, when the pushing block 233 is pushed toward the mold groove 221, the feeding block 3 will move upward along the guiding slope 234, thereby extending into the mold groove 221. On the contrary, the feeding block 3 will move downward along the guiding slope 234, thereby being pulled out of the mold groove 221 to achieve demolding. When the screw sleeve 4 is supplemented after demolding, the feeding block 3 needs to be pushed deeper into the mold groove 221.

[0039] like Figure 2 and Figure 3 As shown, a conical head 311 is provided on one side of the core puller 31 close to the die groove 221, and the conical head 311 can guide the screw sleeve 4 to be arranged inward. In specific implementation, the conical head 311 can guide the screw sleeve 4, and when the screw sleeve 4 is fed in, the screw sleeve 4 can slide in along the conical head 311, further improving the accuracy of feeding the screw sleeve 4 and reducing the situation of the screw sleeve 4 falling off.

[0040] like Figure 3As shown, an elastic positioning pin 312 is provided on the side wall of the core pulling rod 31, and a positioning hole 41 is provided on the screw sleeve 4 corresponding to the elastic positioning pin 312, and the positioning hole 41 is for the elastic positioning pin 312 to extend into, and the elastic positioning pin 312 is slidably connected with the core pulling rod 31 and has a tendency to move away from the core pulling rod 31, and the end of the elastic positioning pin 312 extending out of the core pulling rod 31 is set in an arc shape, and the screw sleeve 4 can push the elastic positioning pin 312 to move toward the inside of the core pulling rod 31 when it is sent in. In specific implementation, the elastic positioning pin 312 is driven by a spring, and the coefficient of the spring is small, so when the screw sleeve 4 is sent in, the elastic positioning pin 312 can be pressed in under the action of gravity, and when the elastic positioning pin 312 is aligned with the positioning hole 41, the screw sleeve 4 can be positioned, and at this time, the screw sleeve 4 is not easy to rotate or fall off, etc., and to a certain extent, it plays a preliminary fixation of the screw sleeve 4 after it is sent in, so as to facilitate subsequent processing.

[0041] like Figure 3 As shown, a plurality of pits 42 are provided on the outer wall of the screw sleeve 4, and a plurality of pits 42 are provided around the screw sleeve 4. A heating element 313 is provided in the elastic positioning pin 312, and the heating element 313 can abut against and heat the screw sleeve 4. A spiral cooling groove 314 is also provided in the core pulling rod 31, and the spiral cooling groove 314 is provided along the core pulling rod 31 and is provided on a side away from the die groove 221. The line connecting the heating element 313 and the power supply is arranged along the spiral cooling groove 314. In specific implementation, the heating element 313 uses an electrically heated copper wire, and the pit 42 can use a millimeter-level pit 42. The product after injection molding can effectively interfere with the screw sleeve 4, so that the screw sleeve 4 is more stably fixed in the product, and the heating element 313 can heat the screw sleeve 4, thereby reducing the situation where the injection molding material at the screw sleeve 4 cannot be completely embedded in the pit 42 and solidifies. The injection molding material cannot form a relatively tight fit with the screw sleeve 4, which makes the screw sleeve 4 easy to fall off. The heated injection molding material can melt and fit the screw sleeve 4 more closely. After the fitting is completed, the spiral cooling groove 314 can quickly cool and solidify the product at this position, thereby further improving production efficiency.

[0042] Working principle: During the injection molding process, the screw sleeve 4 is wrapped in the product, and the screw sleeve 4 is demoulded together with the product. The screw sleeve 4 does not need to be installed later, which not only has higher production efficiency but also less damage to the product.

[0043] The above are preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A handlebar front cover injection molding device, comprising an injection molding table (1), on which a mold (2) is arranged, characterized in that: The mold (2) comprises a driving member (21), an upper mold (22) and a lower mold (23), wherein mold grooves (221) are provided in the upper mold (22) and the lower mold (23), and the mold grooves (221) can cooperate with each other to form a mold cavity, and the driving member (21) is used to drive the upper mold (22) to move toward or away from the lower mold (23); A feeding block (3) is arranged in the lower mold (23), and the feeding block (3) is arranged corresponding to the shape of the product. An embedding groove (32) is provided on the feeding block (3), and a screw sleeve (4) is detachably arranged in the embedding groove (32). The screw sleeve (4) can be embedded in the embedding groove (32), and a gap for injection molding is reserved between the screw sleeve (4) and the groove wall of the embedding groove (32). A core pulling rod (31) is also arranged in the feeding block (3), and the core pulling rod (31) can extend into the screw sleeve (4) and abut against the inner wall of the screw sleeve (4), and the core pulling rod (31) is fixedly connected to the feeding block (3); The feeding block (3) is slidably connected to the lower mold (23), and a pushing member (231) is also provided in the lower mold (23). The pushing member (231) is used to push the feeding block (3) to move toward or away from the product.

2. The front cover injection molding equipment for a steering wheel according to claim 1, characterized in that: The invention also comprises a transverse linear mechanism (5) and a longitudinal linear mechanism (53), wherein the transverse linear mechanism (5) is slidably connected to the longitudinal linear mechanism (53) and slides along the longitudinal linear mechanism (53), wherein a vertical linear mechanism (51) is arranged on the transverse linear mechanism (5), wherein the vertical linear mechanism (51) slides transversely along the transverse linear mechanism (5), wherein a clamping rod (52) is arranged on the vertical linear mechanism (51), wherein the clamping rod (52) slides vertically along the vertical linear mechanism (51), wherein a clamping frame (521) is arranged at the bottom of the clamping rod (52), wherein the clamping frame (521) is arranged perpendicular to the clamping rod (52) and can extend between the upper mold (22) and the lower mold (23), wherein a clamping claw (522) is arranged on the clamping frame (521), wherein the clamping claw (522) is used to clamp the product after injection molding.

3. The front cover injection molding equipment for a steering wheel according to claim 2, characterized in that: The clamping frame (521) is also provided with a feeding claw (523), and the feeding claw (523) is arranged at a position corresponding to the feeding block (3). The feeding claw (523) is used to clamp the screw sleeve (4) and feed it into the feeding block (3).

4. The front cover injection molding equipment for a steering wheel according to claim 3, characterized in that: It also comprises a material placement table (6), on which a material placement seat (61) and a material storage basket (62) are arranged, wherein the material placement seat (61) is arranged corresponding to the shape of the product, the material placement seat (61) is used to place the product, and the material storage basket (62) is used to place the screw sleeve (4).

5. The front cover injection molding equipment for a steering wheel according to claim 1, characterized in that: The pushing member (231) comprises a pushing cylinder (232) and a pushing block (233); the piston rod of the pushing cylinder (232) is fixedly connected to the pushing block (233); the pushing block (233) can move along the lower mold (23); and the pushing block (233) is used to push the feeding block (3) to move.

6. The front cover injection molding equipment for a steering handle according to claim 5, characterized in that: The pushing block (233) is provided with a guiding inclined surface (234), the feeding block (3) is slidably connected to the guiding inclined surface (234) and can move along the guiding inclined surface (234), and when the pushing block (233) moves toward the pushing cylinder (232), the pushing block (233) can pull the feeding block (3) to move toward a side away from the die groove (221).

7. The front cover injection molding equipment for a steering wheel according to claim 4, characterized in that: A conical head (311) is arranged on one side of the core pulling rod (31) close to the die groove (221), and the conical head (311) can guide the screw sleeve (4) to be arranged inwardly.

8. The front cover injection molding equipment for a steering wheel according to claim 7, characterized in that: An elastic positioning pin (312) is arranged on the side wall of the core pulling rod (31), and a positioning hole (41) is opened on the screw sleeve (4) corresponding to the elastic positioning pin (312), and the positioning hole (41) is for the elastic positioning pin (312) to extend into. The elastic positioning pin (312) is slidably connected to the core pulling rod (31) and has a tendency to move away from the core pulling rod (31). One end of the elastic positioning pin (312) extending out of the core pulling rod (31) is arranged in an arc shape, and the screw sleeve (4) can push the elastic positioning pin (312) to move toward the inside of the core pulling rod (31) when the screw sleeve (4) is inserted.

9. The front cover injection molding equipment for a steering wheel according to claim 8, characterized in that: A recess (42) is provided on the outer wall of the screw sleeve (4), and a heating element (313) is arranged in the elastic positioning pin (312). The heating element (313) can abut against and heat the screw sleeve (4).

10. The front cover injection molding equipment for a steering wheel according to claim 9, characterized in that: A spiral cooling groove (314) is also provided in the core pulling rod (31). The spiral cooling groove (314) is arranged along the core pulling rod (31) and on a side away from the mold cavity (221). The line connecting the heating element (313) and the power supply is arranged along the spiral cooling groove (314).

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