Injection molding equipment for toy car

Abstract

The invention discloses injection molding equipment for toy cars, and relates to the field of plastic injection molding, the injection molding equipment comprises a feeding channel, the rear part of the feeding channel is fixedly connected with a heating channel, the interior of the heating channel and the interior of the feeding channel are rotatably connected with augers, the interior of the heating channel is provided with a heating interlayer; a feeding cylinder is fixedly connected to the top of the heating channel in a penetrating mode, a motor is fixedly connected to the rear portion of the heating interlayer, an injection molding hole is formed in the front portion of the interior of the feeding channel in a penetrating mode, a fixing frame is arranged on the front portion of the feeding channel, and an automatic demolding structure is arranged on the rear portion of the fixing frame. By arranging the automatic demolding structure, in the mold separation process, the fixed demolding rod is matched with the demolding groove in the movable mold, so that the demolding rod is automatically inserted into the forming cavity and ejects out the solidified plastic toy car, the manual intervention requirement is remarkably reduced, and the demolding efficiency and the operation safety are improved.

Description

Technical Field

[0001] The present invention relates to the field of plastic injection molding, and particularly to an injection molding device for toy cars. Background Art

[0002] An injection molding device melts plastic particles into a fluid by heating, and then quickly injects it into a precision-closed metal mold cavity under high pressure. The plastic cools and solidifies in the cavity, and finally the mold is opened to take out the molded plastic product, completing a production cycle.

[0003] Chinese Patent with the publication number "CN120056353A" discloses "a molding die for recycling plastic injection molding, belonging to the technical field of recycling plastic injection molding, including an installation table, one side of the top of the installation table is fixedly connected with a fixed seat, and one side of the fixed seat is fixedly connected with a fixed mold base".

[0004] Although the above patent can further homogenize the stress distribution of the injection solution and further reduce the surface defects of the product, it cannot achieve the effect of automatic demolding, so that the demolding link still relies on manual operation or an additional ejection mechanism, which not only reduces production efficiency, increases labor costs and operation risks, but also easily causes surface damage or dimensional deviation of the product due to external force intervention, and cannot meet the requirements of fully automated production. Summary of the Invention

[0005] The main purpose of the present invention is to provide an injection molding device for toy cars, which can effectively solve the technical problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] An injection molding device for toy cars includes a feeding channel, the rear part of the feeding channel is fixedly connected with a heating channel, a screw is rotatably connected inside the heating channel and inside the feeding channel, a heating interlayer is opened inside the heating channel, a feeding cylinder is fixedly connected through the top of the heating channel to the inside, a motor is fixedly connected to the rear part of the heating interlayer, an injection hole is opened through the front part inside the feeding channel, a fixed frame is arranged at the front part of the feeding channel, and an automatic demolding structure is arranged at the rear part of the fixed frame.

[0008] The automatic demolding structure includes three demolding rods. The left mold is fixedly connected to the front part of the feeding channel, a right mold is arranged between the left mold and the fixed frame. Forming grooves are opened on the adjacent surfaces of the left mold and the right mold. Three demolding grooves are opened through the rear part of the right mold. Two connecting blocks are symmetrically fixedly connected to the left and right of the rear part of the fixed frame, a fixed rod is fixedly connected between the two connecting blocks, and the three demolding rods are equidistantly fixedly connected to the rear part of the fixed rod.

[0009] As a further solution of the present invention, connecting frames are fixedly connected to both the top and bottom of the front part of the right mold. Electric push rods I are fixedly connected to both the top and bottom of the rear part of the fixing frame. The output shafts of the two electric push rods I penetrate through the rear part of the fixing frame and are respectively fixedly connected to the two connecting frames.

[0010] As a further solution of the present invention, guide grooves are respectively formed at the four-corner positions through the front part inside the left mold, and guide rods are fixedly connected to the four-corner positions of the rear part of the right mold. The guide rods are adaptively matched with the guide grooves.

[0011] As a further solution of the present invention, the front end of the injection hole communicates with the forming groove inside the left mold, and the demolding groove communicates with the forming groove inside the right mold.

[0012] As a further solution of the present invention, the three demolding rods are located directly in front of the three demolding grooves, and the diameter of the demolding groove is larger than that of the demolding rod.

[0013] As a further solution of the present invention, a leak-proof structure is provided at the top of the fixing frame. The leak-proof structure includes a baffle. A retaining groove is formed through the top inside the right mold. A pair of support plates are provided on both the top of the feeding channel and the top of the fixing frame. A connecting rod is fixedly connected between the front and rear adjacent support plates, and the connecting rod penetrates through the front and rear parts of the baffle.

[0014] As a further solution of the present invention, mounting frames are fixedly connected to both the top of the feeding channel and the top of the fixing frame. Electric push rods II are fixedly connected to the tops of the two mounting frames. A docking block is fixedly connected between each pair of support plates. The output shaft of the electric push rod II penetrates through the bottom of the mounting frame and is fixedly connected to the top of the docking block.

[0015] As a further solution of the present invention, the retaining groove is located between the forming groove and the demolding groove, and the baffle is slidably connected inside the retaining groove.

[0016] As a further solution of the present invention, two plug blocks are symmetrically arranged at the bottom of the rear part of the baffle. Two placement grooves are formed through the front part inside the baffle. A connecting body is slidably connected inside the placement groove. Four springs are fixedly connected between the connecting body and the placement groove. The rear part of the connecting body is fixedly connected to the front part of the plug block. Hook grooves are formed through the top and bottom of the plug block.

[0017] As a further solution of the present invention, the top and bottom of the plug block are both arranged in an inclined shape, and the hook groove is arranged in a triangular prism shape.

[0018] The beneficial effects of the present invention are as follows:

[0019] By setting up an automatic demolding structure, during the mold separation process, with the cooperation of the fixed demolding rod and the demolding groove on the moving mold, the demolding rod is automatically inserted into the molding cavity and ejects the solidified plastic toy car, significantly reducing the need for manual intervention, improving the demolding efficiency and operation safety;

[0020] Through the precision guiding structure, during the mold closing and resetting stage, relying on the precise matching of the guide rod and the guide groove, it ensures that the molding grooves of the left and right molds can be stably and accurately realigned, effectively guaranteeing the dimensional accuracy and appearance quality consistency of the subsequent injection molded products;

[0021] Through the integration of leak prevention and linkage control, a liftable baffle is set to block the connection between the demolding groove and the molding cavity when the mold is closed, preventing the molten plastic from leaking. When demolding, the baffle rises synchronously with the movement of the mold and coordinates with the action sequence of the demolding rod, solving the problem of material leakage and ensuring the smooth execution of the demolding action;

[0022] Through the anti - adhesion clamping design, an elastic insert block with a barb groove is set on the baffle, which embeds the overflow material during injection molding and forms a clamping with the molded part, ensuring that the product can move reliably with the moving mold during mold opening, effectively avoiding the demolding failure caused by the adhesion of the product to the fixed mold cavity;

[0023] By optimizing the overflow material handling structure, a specific - shaped barb groove design is adopted, which can not only hold the overflow material to assist the product to move with the mold, but also utilize the inclined surface structure to achieve the smooth separation of the overflow material and the barb when the demolding rod ejects, taking into account both the anti - adhesion function and the requirement of smooth demolding. Description of the Drawings

[0024] Figure 1 It is a schematic diagram of the overall structure of an injection molding device for a toy car according to the present invention;

[0025] Figure 2 It is an exploded view of the feeding channel and the heating channel of an injection molding device for a toy car according to the present invention;

[0026] Figure 3 It is a view showing the fixed frame of an injection molding device for a toy car according to the present invention;

[0027] Figure 4 It is an exploded view showing the automatic demolding structure of an injection molding device for a toy car according to the present invention;

[0028] Figure 5 It is a rear - view diagram of the exploded automatic demolding structure of an injection molding device for a toy car according to the present invention;

[0029] Figure 6 It is a view showing the leak - prevention structure of an injection molding device for a toy car according to the present invention;

[0030] Figure 7 This is an exploded view of the leak-proof structure of an injection molding device for a toy car according to the present invention;

[0031] Figure 8 This is an exploded view of the baffle and the right mold of an injection molding device for a toy car according to the present invention;

[0032] Figure 9 This is an exploded view of the plug and the baffle of an injection molding device for a toy car according to the present invention;

[0033] Figure 10 This is an injection molding device for a toy car according to the present invention Figure 9 Enlarged view of part A.

[0034] In the figure: 1, feeding channel; 2, heating channel; 3, feeding cylinder; 4, motor; 5, fixing frame; 6, heating interlayer; 7, auger; 8, injection hole; 9, automatic demolding structure; 10, left mold; 11, right mold; 12, molding groove; 13, connecting frame; 14, first electric push rod; 15, guide groove; 16, demolding groove; 17, guide rod; 18, connecting block; 19, fixing rod; 20, demolding rod; 21, leak-proof structure; 22, support plate; 23, baffle; 24, connecting rod; 25, mounting frame; 26, second electric push rod; 27, docking block; 28, retaining groove; 29, plug; 30, placement groove; 31, connecting body; 32, spring; 33, barb groove. Specific embodiments

[0035] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0036] As Figures 1-10 shown, an injection molding device for a toy car includes a feeding channel 1, a heating channel 2 is fixedly connected to the rear of the feeding channel 1, an auger 7 is rotatably connected to the inside of the heating channel 2 and the inside of the feeding channel 1, a heating interlayer 6 is provided inside the heating channel 2, a feeding cylinder 3 is fixedly connected through the top of the heating channel 2 to the inside, a motor 4 is fixedly connected to the rear of the heating interlayer 6, an injection hole 8 is provided through the front of the feeding channel 1, a fixing frame 5 is provided at the front of the feeding channel 1, and an automatic demolding structure 9 is provided at the rear of the fixing frame 5;

[0037] The automatic demolding structure 9 includes three demolding rods 20. The front part of the feeding channel 1 is fixedly connected with a left mold 10. A right mold 11 is arranged between the left mold 10 and the fixing frame 5. Forming grooves 12 are formed on the adjacent surfaces of the left mold 10 and the right mold 11. Three demolding grooves 16 are formed through the rear part of the right mold 11. Two connecting blocks 18 are symmetrically and fixedly connected to the left and right of the rear part of the fixing frame 5. A fixing rod 19 is fixedly connected between the two connecting blocks 18. The three demolding rods 20 are fixedly connected to the rear part of the fixing rod 19 at equal intervals.

[0038] During the actual operation process, plastic particles enter the inside of the heating channel 2 through the feeding cylinder 3. At this time, the motor 4 is started to drive the auger 7 to rotate. The plastic particles are melted under the heating of the heating channel 2 and are conveyed forward by the rotation of the auger 7 and are extruded through the injection holes 8. The extruded fluid plastic will enter the inside of the forming groove 12 inside the left mold 10. When the two forming grooves 12 are filled with the fluid plastic, the injection molding is stopped. Then, after the plastic inside the forming groove 12 cools and solidifies, the right mold 11 is moved forward, so that the two forming grooves 12 are separated, and then the formed plastic toy car can be taken out.

[0039] During the process of the right mold 11 moving forward, the three demolding rods 20 will be inserted into the inside of the demolding grooves 16, and then they will squeeze the plastic toy car inside the forming groove 12 inside the right mold 11, so that the plastic toy car is separated from the forming groove 12, thus achieving the effect of automatic demolding.

[0040] In this embodiment, connecting frames 13 are fixedly connected to the top and bottom of the front part of the right mold 11. Electric push rods 1 are fixedly connected to the top and bottom of the rear part of the fixing frame 5. The output shafts of the two electric push rods 1 pass through the rear part of the fixing frame 5 and are respectively fixedly connected to the two connecting frames 13.

[0041] Start the two electric push rods 1, so that the output shafts of the two electric push rods 1 contract, and then drive the right mold 11 to move forward automatically through the two connecting frames 13.

[0042] In this embodiment, guide grooves 15 are formed through the front part of the inside of the left mold 10 and are respectively arranged at the four corner positions. Guide rods 17 are fixedly connected to the four corner positions of the rear part of the right mold 11. The guide rods 17 are adaptively matched with the guide grooves 15.

[0043] After the demolding is completed, the output shafts of the two electric push rods 1 extend, driving the right mold 11 to move backward and reset. During the reset process, the four guide rods 17 are respectively aligned with the four guide grooves 15 and inserted, so as to ensure the precise alignment of the left mold 10 and the right mold 11, and thus make the two forming grooves 12 precisely aligned. Therefore, the injection molding quality of the toy car is ensured.

[0044] In this embodiment, the front end of the injection hole 8 communicates with the forming groove 12 inside the left mold 10, and the demolding groove 16 communicates with the forming groove 12 inside the right mold 11.

[0045] In this embodiment, three demolding rods 20 are located directly in front of the three demolding grooves 16, and the diameter of the demolding groove 16 is larger than that of the demolding rod 20;

[0046] Because the diameter of the demolding groove 16 is larger than that of the demolding rod 20, when the demolding groove 16 and the demolding rod 20 move relative to each other, there will be no friction between them due to the same or close diameters, thus ensuring that the demolding rod 20 will not be damaged due to mechanical friction.

[0047] In this embodiment, a leak-proof structure 21 is provided at the top of the fixing frame 5. The leak-proof structure 21 includes a baffle 23. A retaining groove 28 is formed through the top inside the right mold 11. A pair of support plates 22 are provided on the top of both the feeding channel 1 and the fixing frame 5. A connecting rod 24 is fixedly connected between two adjacent front and rear support plates 22, and the connecting rod 24 penetrates through the front and rear parts of the baffle 23;

[0048] Since the baffle 23 is located between the forming groove 12 and the demolding groove 16, during the normal injection molding process, the baffle 23 will block the fluid plastic and prevent the fluid plastic from leaking out through the demolding groove 16;

[0049] After the plastic is cooled and formed, while the output shafts of the two electric push rods 14 contract, the output rods of the two electric push rods 26 contract synchronously, driving the two docking blocks 27 to rise. Thus, the two connecting rods 24 are driven to rise through the two pairs of support plates 22, driving the baffle 23 to rise along the retaining groove 28. Therefore, the forming groove 12 and the demolding groove 16 are communicated. At this time, the demolding rod 20 can be inserted into the inside of the forming groove 12 along the demolding groove 16, thus completing the automatic demolding work;

[0050] Since the baffle 23 rises while the right mold 11 moves forward, during the rising process of the baffle 23, due to the movement of the right mold 11, the baffle 23 will also slide forward along the two connecting rods 24.

[0051] In this embodiment, mounting frames 25 are fixedly connected to the tops of both the feeding channel 1 and the fixing frame 5. Electric push rods 26 are fixedly connected to the tops of the two mounting frames 25. A docking block 27 is fixedly connected between each pair of support plates 22, and the output shaft of the electric push rod 26 penetrates through the bottom of the mounting frame 25 and is fixedly connected to the top of the docking block 27.

[0052] In this embodiment, the retaining groove 28 is located between the forming groove 12 and the demolding groove 16, and the baffle 23 is slidably connected to the inside of the retaining groove 28;

[0053] Since there is a distance between the demolding rods 20 in the initial state, the working sequence of the baffle 23 and the demolding rod 20 is that the baffle 23 rises first, so that the molding groove 12 is communicated with the demolding groove 16, and then the demolding rod 20 will insert into the inside of the molding groove 12 along the demolding groove 16. Therefore, the situation of movement conflict between the two is avoided.

[0054] In this embodiment, two insertion blocks 29 are symmetrically arranged at the bottom of the rear part of the baffle 23. Two placement grooves 30 are opened through the front part of the baffle 23. A connecting body 31 is slidably connected inside the placement groove 30. Four springs 32 are fixedly connected between the connecting body 31 and the placement groove 30. The rear part of the connecting body 31 is fixedly connected to the front part of the insertion block 29. Hook grooves 33 are formed through the top and bottom of the insertion block 29;

[0055] Existing injection molds are all provided with overflow grooves, and the main function is to accommodate and guide a small amount of excess plastic melt inevitably generated during the injection process. When the baffle 23 is in the initial position, the two insertion blocks 29 will be located inside the overflow groove. After the flowing plastic is molded, it will be engaged with the hook grooves 33 at the top and bottom of the insertion block 29. Therefore, during the movement of the right mold 11, the plastic toy car will move together under the action of the two hook grooves 33, so that it can be ensured that the demolding rod 20 will be squeezed against the plastic toy car. Therefore, through the hook grooves 33, it can be avoided that during the forward movement of the right mold 11, the plastic toy car will adhere to the left mold 10 and will not move together with the right mold 11, which can make the automatic demolding structure 9 operate effectively;

[0056] During the rising or falling process of the baffle 23, its insertion block 29 will be squeezed, so that the insertion block 29 moves along the inclined plane into the inside of the placement groove 30 until it is in the same vertical plane as the baffle 23, so that the baffle 23 can move up and down normally.

[0057] In this embodiment, the top and bottom of the insertion block 29 are both arranged in an inclined plane, and the hook groove 33 is arranged in a triangular prism shape;

[0058] Since the hook groove 33 is arranged in a triangular prism shape, the engagement between the hook groove 33 and the plastic located inside the overflow groove will not prevent the automatic demolding work of the demolding rod 20. During automatic demolding, the plastic toy car is ejected, so that the plastic located inside the overflow groove will separate along the inclined plane of the hook groove 33.

[0059] It should be noted that the present invention is an injection molding device for toy cars. When in use, plastic particles enter the interior of the heating channel 2 through the feeding cylinder 3. At this time, the motor 4 is started to drive the auger 7 to rotate. The plastic particles are melted under the heating of the heating channel 2 and are conveyed forward by the rotation of the auger 7 and are extruded through the injection holes 8. The extruded fluid plastic enters the interior of the molding groove 12 inside the left mold 10. When the two molding grooves 12 are filled with the fluid plastic, the injection molding is stopped. Then, after the plastic inside the molding groove 12 cools and solidifies, the right mold 11 is moved forward, so that the two molding grooves 12 are separated, and then the molded plastic toy car can be taken out;

[0060] During the process of the right mold 11 moving forward, three demolding rods 20 will be inserted into the interior of the demolding groove 16, and then they will squeeze the plastic toy car inside the molding groove 12 inside the right mold 11, so that the plastic toy car is separated from the molding groove 12, thus achieving the effect of automatic demolding;

[0061] Start two electric push rods 14, so that the output shafts of the two electric push rods 14 contract, and then drive the right mold 11 to move forward automatically through the two connecting frames 13;

[0062] After the demolding is completed, the output shafts of the two electric push rods 14 extend, driving the right mold 11 to move backward and reset. During the reset process, the four guide rods 17 are respectively aligned with the four guide grooves 15 and inserted, so as to ensure the precise alignment of the left mold 10 and the right mold 11, and thus make the two molding grooves 12 precisely aligned. Therefore, the injection molding quality of the toy car is ensured;

[0063] Because the diameter of the demolding groove 16 is larger than the diameter of the demolding rod 20, when the demolding groove 16 and the demolding rod 20 move relative to each other, there will be no friction between them due to the same or close diameters, thus ensuring that the demolding rod 20 will not be damaged due to mechanical friction;

[0064] Since the baffle 23 is located between the molding groove 12 and the demolding groove 16, therefore, during the normal injection molding process, the baffle 23 will block the fluid plastic to prevent the fluid plastic from leaking out through the demolding groove 16;

[0065] After the plastic cools and forms, while the output shafts of the two electric push rods 14 contract, the output rods of the two electric push rods 26 contract synchronously, driving the two docking blocks 27 to rise, and then driving the two connecting rods 24 to rise through the two pairs of support plates 22, and then driving the baffle 23 to rise along the retaining groove 28, so that the molding groove 12 and the demolding groove 16 are communicated. At this time, the demolding rod 20 can be inserted into the interior of the molding groove 12 along the demolding groove 16, thus completing the automatic demolding work;

[0066] Since the baffle 23 rises while the right mold 11 moves forward, during the rising process of the baffle 23, due to the movement of the right mold 11, the baffle 23 will also slide forward along the two connecting rods 24.

[0067] Existing injection molds are all provided with overflow grooves, whose main function is to accommodate and guide a small amount of excess plastic melt inevitably generated during the injection process. When the baffle 23 is in the initial position, the two inserts 29 will be located inside the overflow groove. After the flowing plastic is molded, it will engage with the barb grooves 33 at the top and bottom of the inserts 29. Therefore, during the movement of the right mold 11, the plastic toy car will move together under the action of the two barb grooves 33, so as to ensure that the demolding rod 20 will be squeezed against the plastic toy car. Therefore, through the barb grooves 33, it can be avoided that during the forward movement of the right mold 11, the plastic toy car will adhere to the left mold 10 and will not move together with the right mold 11, which can enable the automatic demolding structure 9 to operate effectively.

[0068] During the rising or falling process of the baffle 23, its insert 29 will be squeezed, causing the insert 29 to move along the inclined plane into the placement groove 30 until it is in the same vertical plane as the baffle 23, so that the baffle 23 can move up and down normally.

[0069] Since the barb groove 33 is arranged in the shape of a triangular prism, the engagement of the barb groove 33 with the plastic located inside the overflow groove will not interfere with the automatic demolding work of the demolding rod 20. During automatic demolding, the plastic toy car is ejected, causing the plastic located inside the overflow groove to separate along the inclined plane of the barb groove 33.

[0070] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An injection molding device for a toy car, comprising a feeding channel (1), and a heating channel (2) is fixedly connected to the rear part of the feeding channel (1), and is characterized in that: Inside the heating channel (2) and the feeding channel (1), there is a screw conveyor (7) rotatably connected. Inside the heating channel (2), there is a heating interlayer (6) provided. At the top of the heating channel (2), a feeding cylinder (3) is fixedly connected through the interior. At the rear of the heating interlayer (6), a motor (4) is fixedly connected. Inside the feeding channel (1), an injection hole (8) is provided through the front part. At the front of the feeding channel (1), a fixing frame (5) is provided, and at the rear of the fixing frame (5), an automatic demolding structure (9) is provided; The automatic demolding structure (9) includes three demolding rods (20). At the front of the feeding channel (1), a left mold (10) is fixedly connected. Between the left mold (10) and the fixing frame (5), a right mold (11) is provided. On the adjacent surfaces of the left mold (10) and the right mold (11), forming grooves (12) are provided. At the rear of the right mold (11), three demolding grooves (16) are provided through. At the rear of the fixing frame (5), two connecting blocks (18) are symmetrically fixedly connected on the left and right. Between the two connecting blocks (18), a fixing rod (19) is fixedly connected. The three demolding rods (20) are fixedly connected to the rear of the fixing rod (19) at equal intervals.

2. An injection molding device for a toy car according to claim 1, characterized in that: At the top and bottom of the front part of the right mold (11), connecting frames (13) are fixedly connected. At the top and bottom of the rear part of the fixing frame (5), first electric push rods (14) are fixedly connected. The output shafts of the two first electric push rods (14) penetrate through the rear part of the fixing frame (5) and are respectively fixedly connected to the two connecting frames (13).

3. An injection molding device for a toy car according to claim 1, characterized in that: Inside the front part of the left mold (10), guide grooves (15) are respectively provided at the four corner positions. At the four corner positions of the rear part of the right mold (11), guide rods (17) are fixedly connected. The guide rods (17) are adaptively matched with the guide grooves (15).

4. An injection molding device for a toy car according to claim 1, characterized in that: The front end of the injection hole (8) communicates with the forming groove (12) inside the left mold (10), and the demolding groove (16) communicates with the forming groove (12) inside the right mold (11).

5. An injection molding device for a toy car according to claim 4, characterized in that: The three demolding rods (20) are located directly in front of the three demolding grooves (16), and the diameter of the demolding groove (16) is larger than the diameter of the demolding rod (20).

6. An injection molding device for a toy car according to claim 1, characterized in that: At the top of the fixing frame (5), a leak-proof structure (21) is provided. The leak-proof structure (21) includes a baffle (23). Inside the top of the right mold (11), a retaining groove (28) is provided through. On the top of the feeding channel (1) and the fixing frame (5), a pair of support plates (22) are provided. Between the adjacent front and rear support plates (22), a connecting rod (24) is fixedly connected. The connecting rod (24) penetrates through the front and rear parts of the baffle (23).

7. An injection molding device for a toy car according to claim 6, characterized in that: On the top of the feeding channel (1) and the fixing frame (5), mounting frames (25) are fixedly connected. On the top of the two mounting frames (25), second electric push rods (26) are fixedly connected. Between each pair of support plates (22), a docking block (27) is fixedly connected. The output shaft of the second electric push rod (26) penetrates through the bottom of the mounting frame (25) and is fixedly connected to the top of the docking block (27).

8. An injection molding device for a toy car according to claim 6, characterized in that: The retaining groove (28) is located between the forming groove (12) and the demolding groove (16), and the baffle (23) is slidably connected inside the retaining groove (28).

9. An injection molding device for a toy car according to claim 6, characterized in that: At the rear part near the bottom of the baffle plate (23), two insertion blocks (29) are symmetrically arranged. Two placement grooves (30) are formed through the front part inside the baffle plate (23). A connecting body (31) is slidably connected inside the placement groove (30). Four springs (32) are fixedly connected between the connecting body (31) and the placement groove (30). The rear part of the connecting body (31) is fixedly connected to the front part of the insertion block (29). Hook grooves (33) are formed through the top and bottom of the insertion block (29).

10. An injection molding device for a toy car according to claim 9, characterized in that: The top and bottom of the insertion block (29) are both arranged in an inclined plane, and the hook groove (33) is arranged in a triangular prism shape.

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