A motorcycle plastic fender integrated injection molding mold

Abstract

The application provides a motorcycle plastic mudguard integrated injection molding mold, which comprises a top plate, an upper mold, a lower mold, an ejection plate and a bottom plate. The upper mold and the lower mold form a cavity for molding a mudguard body. The lower mold is provided with core-pulling assemblies at both sides. The core-pulling assembly comprises a core-pulling block and an oil cylinder for driving the core-pulling block to move. A pushing block is embedded in the middle of the core-pulling block. The pushing block is provided with a forming groove on the upper and lower sides. The pushing block is provided with a stroke hole one and a spring hole one. The spring hole one is provided with a pushing spring one. The stroke hole one is provided with a screw. The stroke hole one is provided with a countersunk hole one. When the core-pulling block is combined with the upper mold and the lower mold, the pushing block is pressed against the lower mold and the pushing spring one is compressed. The pushing spring one drives the pushing block to press against the brake caliper baffle. The spring force presses against the brake caliper baffle when the core-pulling block is pulled out. The problem that the core-pulling block drives the brake caliper baffle to move is reduced. The possibility of product deformation and fracture is reduced.

Description

Technical Field

[0001] This invention relates to molds, and more particularly to an integrated injection molding mold for a motorcycle plastic mudguard. Background Technology

[0002] A mudguard is a plate structure installed behind the outer frame of a wheel to block mud and sand splashed during driving. It is generally made of plastic injection molding. For example, a motorcycle mudguard disclosed in Chinese Patent No. CN209972657U includes a plate body that is semi-circular and conforms to the shape of the tire.

[0003] There is an integrated mudguard, such as Figure 1 As shown, the system includes a mudguard body 90, and brake caliper baffles 91 are provided on both sides of the mudguard body 90. The brake caliper baffles 91 are used to reduce dust from entering the brake caliper. The brake caliper baffles 91 have countersunk connecting holes 92 and through slots 93. When the integrated mudguard is injection molded, the countersunk connecting holes 92 and through slots 93 need to be core-pulled. However, the connection between the mudguard body 90 and the brake caliper baffles 91 has low strength, and the material strength of the mudguard body 90 is also poor. During core pulling, the problem of sticking to the mold is likely to occur, that is, the core-pulling block 7 moves the brake caliper baffles 91 together, which leads to deformation and breakage of the molded product. Summary of the Invention

[0004] In view of this, the purpose of this invention is to provide an integrated injection molding mold for motorcycle plastic mudguards, which has the function of reducing product deformation and breakage.

[0005] To solve the above-mentioned technical problems, the technical solution of the present invention is: an integrated injection molding mold for a motorcycle plastic mudguard, comprising a top plate, an upper mold, a lower mold, an ejector plate, and a bottom plate. A cavity for molding the mudguard body is formed between the upper and lower molds. Core-pulling assemblies are also provided at both ends of the lower mold. The core-pulling assembly includes a core-pulling block and a hydraulic cylinder for driving the core-pulling block to move. The core-pulling block is used to mold countersunk connecting holes and through slots. A pusher block is also embedded in the middle of the core-pulling block. Molding grooves for molding the through-slot sides are opened on the upper and lower sides of the pusher block. It also has a stroke hole and a spring hole. A push spring is installed in the spring hole and a screw is installed in the stroke hole. A countersunk hole is also provided on one side of the stroke hole. The head of the screw is placed in the countersunk hole. The screw passes through the stroke hole and is threadedly connected to the core-pulling block. When the core-pulling block is closed with the upper and lower molds, the push block abuts against the lower mold and compresses the push spring. The lower mold also has symmetrically embedded inclined ejector blocks. The bottom of the inclined ejector block is provided with an inclined ejector rod fixed to the ejector plate. The inclined ejector block is used to form the countersunk connecting hole.

[0006] By using the above-mentioned technical means, the pusher block is driven by the pusher spring to press against the brake caliper baffle. This reduces the problem of the brake caliper baffle being moved by the core-pulling block when the core-pulling block is pulling the core, thereby reducing the possibility of product deformation and breakage and increasing the yield rate.

[0007] Preferably, the lower mold is further provided with a straight ejector block, and the straight ejector block is provided with an anti-pull groove for forming the bottom surface of the brake caliper baffle. After the brake caliper baffle is formed, the anti-pull groove abuts against the inner side of the brake caliper baffle.

[0008] Through the above-mentioned technical means, the straight ejector block is used for straight ejection, and the anti-pull groove is used to form the brake caliper baffle to prevent the brake caliper baffle from being too tightly wrapped due to cooling and shrinkage when the inclined ejector block is ejected at an angle, which would cause the brake caliper baffle to move with the inclined ejector block and thus deform.

[0009] Preferably, the inclined ejector block is further provided with a drive source and a push rod. The drive source includes a guide rail on the lower die. The inclined ejector block is provided with a stroke hole and a countersunk hole on the side of the stroke hole. A sliding column is provided at one end of the push rod. The sliding column is located in the countersunk hole. The push rod is located in the stroke hole. A push spring is provided between the sliding column and the bottom surface of the countersunk hole. The sliding column is slidably mounted on the guide rail.

[0010] Through the above-mentioned technical means, by the cooperation between the sliding column and the guide rail, and by setting the second pusher spring, the pusher rod automatically pushes the material outward when the inclined ejector block moves upward, so that the inclined ejector block is separated from the brake caliper baffle and the sticking to the mold is prevented.

[0011] Preferably, the inclined top block is further provided with a cooling channel, and the inclined top block is also provided with an ejection hole. A push rod is provided in the ejection hole, and a piston is provided at the tail of the push rod. The top outlet is connected to the cooling channel, and both ends of the cooling channel are connected to hoses. The hoses are used to connect to the cooling system, and a solenoid valve is provided in the hoses.

[0012] By using the above-mentioned technical means, the push rod is driven to eject and retract through the cooling channel, thereby achieving demolding of the inclined ejector block and brake caliper baffle while cooling the product.

[0013] Preferably, the inclined ejector block is further provided with a release fluid channel, and the tail end of the release fluid channel is connected to a hose for connecting to a release agent storage system. The inclined ejector block is also provided with an ejection hole II, and a push rod is provided in the ejection hole II. The head of the push rod is provided with an oil mist nozzle, and the tail end of the push rod is connected to a piston rod. The internal pressure of the release fluid channel drives the piston rod to move. Both the push rod and the piston rod are provided with spray channels. An installation tail seat is also provided in the ejection hole II. The tail end of the piston rod is slidably connected to the installation tail seat. A sliding sealing assembly for opening and closing the spray channel is also provided in the piston rod. A push rod is also provided in the ejection hole II. When the push rod is pushed out, the inlet of the spray channel is exposed in the installation tail seat, and the release fluid enters the spray channel. When the push rod is retracted, the push rod pushes the release fluid out.

[0014] By using the above-mentioned technical means, the release fluid is used as a driving source to drive the push rod to move and eject. At the same time, the release fluid is sprayed through the spray channel and oil mist nozzle, so that the release fluid is sprayed on the surface of the core block. This makes it easier for the push block to separate the product from the core block, reducing scratches on the product surface caused by sticking to the mold. It also realizes the pushing of the mold between the inner surface of the brake caliper baffle and the inclined ejector block. The automatic spraying of release fluid reduces labor costs, makes the distribution of release fluid more uniform, and saves more on the use of release fluid.

[0015] Preferably, the sliding sealing assembly includes a pair of wedge-shaped sliders, a square groove is provided on the piston rod, the wedge-shaped sliders are slidably disposed in the square groove, a second spring hole is provided on the inner side of both wedge-shaped sliders, a driving spring is provided in the second spring hole, a limit ring is fixedly provided in the second ejection hole, a limit block is provided on the limit ring, and both the limit block and the wedge-shaped sliders are provided with inclined surfaces.

[0016] Through the above-mentioned technical means, by cooperating between the wedge slider and the limiting block, when the pressure inside the ejection hole increases, the piston rod drives the push rod to eject, thus sealing the liquid spray channel and preventing the release agent from flowing out due to excessive pressure.

[0017] Preferably, the push rod is also fitted with a reset spring for driving the push rod to reset, and the mounting tail seat is also provided with an auxiliary push block on the side opposite to the push rod. A push block cavity is provided between the auxiliary push block and the mounting tail seat. A flow channel is also provided in the inclined top block. One end of the flow channel is connected to the demolding liquid channel, and the other end is connected to the push block cavity. The push rod is fixedly mounted on the auxiliary push block.

[0018] By employing the aforementioned technical means, the return spring assists the push rod in rebounding. When the pressure inside the ejection hole 2 decreases, the piston rod automatically resets. Through the cooperation between the diversion channel and the push block cavity, when the ejection hole 2 is under negative pressure, the push rod squeezes the spray channel, thereby enabling positive pressure and negative pressure to complete ejection and spraying respectively, increasing the degree of automation. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the mudguard body; Figure 2 This is a schematic diagram of the structure of Embodiment 1; Figure 3 This is a schematic diagram of the core-pulling assembly. Figure 4 This is a schematic diagram of the pusher block structure; Figure 5 This is a cross-sectional view of the pusher block; Figure 6 This is a partial schematic diagram of Embodiment 1; Figure 7 This is a schematic diagram of the direct-acting block; Figure 8 This is a partial cross-sectional view of Embodiment 1; Figure 9 for Figure 8 Sectional view of part A; Figure 10 This is a partial schematic diagram of Example 2; Figure 11 This is a partial cross-sectional view of Embodiment 2; Figure 12 This is a partial cross-sectional view of Embodiment 3; Figure 13 for Figure 12 A schematic diagram of part B.

[0020] Reference numerals: 1. Top plate; 2. Upper mold; 3. Lower mold; 4. Ejector plate; 5. Base plate; 6. Core-pulling assembly; 7. Core-pulling block; 8. Hydraulic cylinder; 9. Push block; 10. Forming groove; 11. Stroke hole one; 12. Countersunk hole one; 13. Push spring one; 14. Screw; 15. Angled ejector block; 16. Angled ejector rod; 17. Straight ejector block; 18. Anti-pull groove; 19. Push rod; 20. Guide rail; 21. Sliding column; 22. Stroke hole two; 23. Countersunk hole two; 24. Push spring two; 25. Cooling channel; 26. Ejector hole one; 27. Hose; 28. Release fluid channel; 29. ​​Ejection hole two; 30. Oil mist nozzle; 31. Piston rod; 32. Piston block; 33. Spray channel; 34. Mounting tailstock; 35. Liquid inlet; 36. Sliding seal assembly; 37. Wedge slider; 38. Square slide groove; 39. Spring hole two; 40. Limiting ring; 41. Limiting block; 42. Inclined surface; 43. Return spring; 44. Auxiliary push block; 45. Push block cavity; 46. Diverter channel; 47. Push rod; 90. Mudguard body; 91. Brake caliper baffle; 92. Countersunk connection hole; 93. Through groove. Detailed Implementation

[0021] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and mastered. Example 1:

[0022] An integrated injection molding mold for a motorcycle plastic mudguard includes a top plate 1, an upper mold 2, a lower mold 3, an ejector plate 4, and a bottom plate 5. A cavity for forming the mudguard body 90 is formed between the upper mold 2 and the lower mold 3. Core-pulling components 6 are also provided on both sides of the lower mold 3. The core-pulling components 6 include a core-pulling block 7 and a hydraulic cylinder 8 for driving the core-pulling block 7 to move. Before the mold is opened, the hydraulic cylinder 8 drives the core-pulling block 7 to be pulled out and form the outer surface of the brake caliper baffle 91, while simultaneously forming the countersunk connecting hole 92 and the through groove 93 on the outer surface.

[0023] The core-pulling block 7 also has a pusher block 9 embedded in the middle. The pusher block 9 has forming grooves 10 on its upper and lower sides for forming the sides of the through-groove 93. The pusher block 9 also has a stroke hole 11 and a spring hole 12, both located in positions that do not participate in mold forming. A pusher spring 13 is installed in the spring hole 12, and a screw 14 is installed in the stroke hole 11. A countersunk hole 111 is also provided on one side of the stroke hole 11, with the screw head positioned in the countersunk hole 111. The screw 14 passes through the stroke hole 111 and is threadedly connected to the core-pulling block 7. When the core-pulling block 7 is closed with the upper mold 2 and lower mold 3, the pusher block 9... The screw 14 presses against the lower mold 3 and compresses the push spring 13. At this time, there is still a certain distance between the head of the screw 14 and the bottom surface of the countersunk hole 111. The lower mold 3 is also symmetrically fitted with inclined ejector blocks 15. The inclined ejector blocks 15 are used to form the inner surface of the brake caliper baffle 91. When the core-pulling block 7 pulls the core, the elastic energy stored in the push spring 13 is released, pushing the push block 9 to continue pressing against the inclined ejector block 15. At this time, the formed brake caliper baffle 91 is separated from the core-pulling block 7, thereby reducing the sticking phenomenon. When the core-pulling block 7 continues to move and the top of the screw 14 presses against the bottom surface of the countersunk hole 111, the core-pulling block 7 drives the push block 9 to move out to realize the core pulling.

[0024] The bottom of the inclined ejector block 15 is provided with an inclined ejector rod 16 fixed to the ejector plate 4. The inclined ejector block 15 is used to form the countersunk connecting hole 92. The lower mold 3 is also embedded with a straight ejector block 17. The ejector plate 4 drives the straight ejector block 17 to be ejected vertically. The straight ejector block 17 is provided with an anti-pull groove 18. The anti-pull groove 18 and the inclined ejector block 15 form the bottom surface of the brake caliper baffle 91. After the brake caliper baffle 91 is formed, the anti-pull groove 18 abuts against the inner side of the brake caliper baffle 91. When ejecting, the inclined ejector block 15 is inclined inward and pulls the core of the undercut on the inner side of the brake caliper baffle 91. After the brake caliper baffle 91 cools down, it will shrink and wrap around the ejector block. At this time, the anti-pull groove 18 locks the brake caliper baffle 91 to prevent it from moving inward with the inclined ejector block 15.

[0025] The inclined ejector block 15 is also equipped with a drive source 1 and a push rod 19. The drive source 1 includes a guide rail 20 opened on the lower mold 3. The inclined ejector block 15 is provided with a stroke hole 22 and a countersunk hole 23 located on the side of the stroke hole 22. One end of the push rod 19 is provided with a sliding column 21, which is located in the countersunk hole 23. The push rod 19 is located in the stroke hole 22. A push spring 24 is provided between the sliding column 21 and the bottom surface of the countersunk hole. The end of the sliding column 21 is slidably located on the guide rail 20. When the inclined ejector block 15 moves upward, the push spring 24 pushes the sliding column 21 to press against the guide rail 20. At this time, the sliding column 21 causes the push rod 19 to move along the stroke hole 22 and push outward against the brake caliper baffle 91 according to the inclination of the guide rail 20, so that the inclined ejector block 15 is separated from the brake caliper baffle 91, thereby preventing sticking to the mold. Example 2:

[0026] The difference between Embodiment 2 and Embodiment 1 is that a cooling channel 25 is also provided inside the inclined ejector block 15. An ejection hole 26 is provided on the inclined ejector block 15, and a push rod 19 is provided inside the ejection hole 26. A piston is provided at the tail of the push rod 19. The ejection outlet is connected to the cooling channel 25. Both ends of the cooling channel 25 are connected to hoses 27. The hoses 27 are used to connect to the cooling system. The cooling system includes a water pump, a liquid collection tank, and a chiller. The water pump pumps the cooling pressure in the liquid collection tank into the cooling channel 25. A solenoid valve is provided inside the hose 27. When the inclined ejector block 15 is tilted and ejected, the pressure inside the cooling channel 25 is changed by opening or closing the solenoid valve and by the water pump, thereby achieving demolding of the inclined ejector block 15 and the brake caliper baffle 91 while cooling the product. Example 3:

[0027] The difference between Example 3 and Example 1 is that the inclined ejector block 15 is also provided with a release fluid channel 28. The tail of the release fluid channel 28 is connected to a hose 27, which is used to connect to the release agent storage system. The release agent storage system includes a water pump and a storage station. The water pump pumps the release fluid from the storage station into the release fluid channel 28. The inclined ejector block 15 is also provided with an ejection hole 29, which is connected to the release fluid channel 28. A push rod 19 is provided in the ejection hole 29. An oil mist nozzle 30 is provided at the head of the push rod 19. A piston rod 31 is connected to the tail of the push rod 19. A piston block 32 is provided on the piston rod 31. The piston block 32 is in contact with the inner sidewall of the ejection hole 29. When the internal pressure of the release fluid channel 28 increases, it pushes the piston rod 31 to move. The piston rod 31 pushes the push rod 19 to move and eject.

[0028] Both the push rod 19 and the piston rod 31 are provided with liquid spray channels 33. The ejection hole 29 is also provided with a mounting tail seat 34. One end of the piston rod 31 is cylindrical and the other end is square. The tail of the piston rod 31 is slidably connected to the mounting tail seat 34. The tail of the piston rod 31 is provided with a liquid inlet hole 35, which is connected to the liquid spray channel 33. When the piston rod 31 drives the push rod 19 to push out, the liquid inlet hole 35 is exposed in the mounting tail seat 34. When the piston rod 31 retracts, the liquid inlet hole 35 is inserted into the mounting tail seat 34.

[0029] The piston rod 31 is also provided with a sliding sealing assembly 36 for opening and closing the liquid spray channel 33. The sliding sealing assembly 36 includes a pair of wedge-shaped sliders 37. A square groove 38 is provided at the square column part of the piston rod 31. The wedge-shaped sliders 37 are slidably disposed in the square groove 38. Spring holes 39 are provided on the inner side of both wedge-shaped sliders 37. A drive spring is provided in the spring holes 39. A limit ring 40 is fixedly provided in the ejection hole 29. A limit block 41 is provided on the limit ring 40. Both the limit block 41 and the wedge-shaped sliders 37 are provided with inclined surfaces 42. When the push rod 19 is pushed out, the limit block 41 abuts against the wedge-shaped sliders 37, causing the two wedge-shaped sliders 37 to move toward the middle and compress the spring. At this time, the wedge-shaped sliders 37 block the liquid spray channel 33. When the push rod 19 is retracted, the compressed spring drives the wedge-shaped sliders 37 to reset. At this time, the liquid spray channel 33 is opened.

[0030] The push rod 19 is also fitted with a reset spring 43 for driving the push rod 19 to reset. The mounting tail seat 34 is also provided with an auxiliary push block 44 on the side opposite to the push rod 19. A push block cavity 45 is provided between the auxiliary push block 44 and the mounting tail seat 34. A diversion channel 46 is also provided in the inclined top block 15. One end of the diversion channel 46 is connected to the demolding liquid channel 28, and the other end is connected to the push block cavity 45. A liquid push rod 47 is also fixedly installed on the auxiliary push block 44. The liquid push rod 47 is inserted into the liquid spraying channel 33.

[0031] As the pressure in the release fluid channel 28 continues to increase, the piston rod 31 pushes the push rod 19 to move. At this time, the return spring 43 is compressed, and the wedge-shaped slider 37 gradually seals the spray channel 33. When the push rod 19 is fully ejected, the inlet hole 35 at the tail of the piston rod 31 is exposed to the mounting tail seat 34. At this time, the release fluid enters the spray channel 33, and at the same time, the auxiliary push block 44 moves away from the push rod 19. When the pressure in the release fluid channel 28 gradually decreases and returns to normal, the return spring 43 drives the piston rod 31 to move. 1. Reset: At this time, the liquid inlet 35 re-enters the mounting tail seat 34 and seals the liquid spray channel 33. When the pressure in the demolding liquid channel 28 continues to drop, the auxiliary push block 44 gradually returns to its original position. At this time, the push rod 47 pushes the demolding liquid in the liquid spray channel 33 out. When the inclined ejector block 15 tilts, the pressure in the demolding liquid channel 28 increases. After the inclined ejector block 15 tilts, the pressure in the demolding liquid channel 28 recovers. When the upper mold 2, lower mold 3 and core-pulling block 7 are closed, the pressure in the demolding liquid channel 28 continues to drop and the liquid spraying is completed.

[0032] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. An integrated injection molding mold for a motorcycle plastic mudguard, comprising a top plate (1), an upper mold (2), a lower mold (3), an ejector plate (4), and a bottom plate (5), wherein a cavity for molding a mudguard body (90) is formed between the upper mold (2) and the lower mold (3), and core-pulling assemblies (6) are provided at both ends of the lower mold (3), the core-pulling assembly (6) comprising a core-pulling block (7) and a hydraulic cylinder (8) for driving the core-pulling block (7) to move, the core-pulling block (7) being used to mold countersunk connecting holes (92) and through slots (93), characterized in that: The core-pulling block (7) is also embedded with a pusher block (9). The pusher block (9) has forming grooves (10) on its upper and lower sides for forming the side of the through groove (93). The pusher block (9) also has a stroke hole (11) and a spring hole (12). A pusher spring (13) is installed in the spring hole (12). A screw (14) is installed in the stroke hole (11). A countersunk hole (111) is also installed on one side of the stroke hole (11). The head of the screw (14) is set in the countersunk hole. Inside the head hole (111), the screw (14) passes through the stroke hole (11) and is threadedly connected to the core-pulling block (7). When the core-pulling block (7) is closed with the upper mold (2) and the lower mold (3), the pusher block (9) abuts against the lower mold (3) and compresses the pusher spring (13). The lower mold (3) is also symmetrically fitted with inclined ejector blocks (15). The bottom of the inclined ejector block (15) is provided with an inclined ejector rod (16) fixed to the ejector plate (4). The inclined ejector block (15) is used to form the countersunk head connecting hole (92).

2. The integrated injection molding mold for a motorcycle plastic mudguard according to claim 1, characterized in that: The lower mold (3) is also fitted with a straight push block (17), and the straight push block (17) is provided with an anti-pull groove (18) for forming the bottom surface of the brake caliper baffle (91). After the brake caliper baffle (91) is formed, the anti-pull groove (18) abuts against the inner side of the brake caliper baffle (91).

3. The integrated injection molding mold for a motorcycle plastic mudguard according to claim 1, characterized in that: The inclined top block (15) is also provided with a drive source and a push rod (19). The drive source includes a guide rail (20) opened on the lower mold (3). The inclined top block (15) is provided with a stroke hole (22) and a countersunk hole (23) set on the side of the stroke hole (22). One end of the push rod (19) is provided with a sliding column (21). The sliding column (21) is set in the countersunk hole (23). The push rod (19) is set in the stroke hole (22). A push spring (24) is provided between the sliding column (21) and the bottom surface of the countersunk hole (23). The sliding column (21) is slidably set on the guide rail (20).

4. The integrated injection molding mold for a motorcycle plastic mudguard according to claim 1, characterized in that: The inclined top block (15) is also provided with a cooling channel (25). The inclined top block (15) is also provided with an ejection hole (26). The ejection hole (26) is provided with a push rod (19). The tail of the push rod (19) is provided with a piston. The ejection hole (26) is connected to the cooling channel (25). Both ends of the cooling channel (25) are connected with hoses (27). The hoses (27) are used to connect to the cooling system. The hoses (27) are provided with solenoid valves.

5. The integrated injection molding mold for a motorcycle plastic mudguard according to claim 1, characterized in that: The inclined ejector block (15) is also provided with a release fluid channel (28), and a hose (27) is connected to the end of the release fluid channel (28). The hose (27) is used to connect to the release agent storage system. The inclined ejector block (15) is also provided with an ejection hole (29), and a push rod (19) is provided in the ejection hole (29). An oil mist nozzle (30) is provided at the head of the push rod (19), and a piston rod (31) is connected to the end of the push rod (19). The pressure inside the release fluid channel (28) drives the piston rod (31) to move. Both the push rod (19) and the piston rod (31) are provided with... The liquid spray channel (33) is provided with a mounting tail seat (34) inside the ejector hole (29). The tail of the piston rod (31) is slidably connected to the mounting tail seat (34). The piston rod (31) is also provided with a sliding sealing assembly (36) for opening and closing the liquid spray channel (33). The ejector hole (29) is also provided with a push rod (47). When the push rod (19) is pushed out, the inlet of the liquid spray channel (33) is exposed in the mounting tail seat (34), and the release liquid enters the liquid spray channel (33). When the push rod (19) is retracted, the push rod (47) pushes the release liquid out.

6. The integrated injection molding mold for a motorcycle plastic mudguard according to claim 5, characterized in that: The sliding sealing assembly (36) includes a pair of wedge-shaped sliders (37). A square groove (38) is provided on the piston rod (31). The wedge-shaped sliders (37) are slidably disposed in the square groove (38). A spring hole (39) is provided on the inner side of both wedge-shaped sliders (37). A driving spring is provided in the spring hole (39). A limit ring (40) is also fixedly provided in the ejection hole (29). A limit block (41) is provided on the limit ring (40). Both the limit block (41) and the wedge-shaped sliders (37) are provided with inclined surfaces (42).

7. The integrated injection molding mold for a motorcycle plastic mudguard according to claim 5, characterized in that: The push rod (19) is also fitted with a reset spring (43) for driving the push rod (19) to reset. The mounting tail seat (34) is also provided with an auxiliary push block (44) on the side away from the push rod (19). A push block cavity (45) is provided between the auxiliary push block (44) and the mounting tail seat (34). A diversion channel (46) is also provided in the inclined top block (15). One end of the diversion channel (46) is connected to the demolding liquid channel (28), and the other end is connected to the push block cavity (45). The push rod (47) is fixedly mounted on the auxiliary push block (44).

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