A motorcycle rear fender injection molding device
By designing a motorcycle rear fender injection molding device that includes cylinder block, spiral feed slurry, heater and temperature regulation components, the complex problems of injection mold blockage and temperature control are solved, and efficient production of fenders and energy consumption reduction are achieved. .
Patent Information
- Application Number
- CN202411436530.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2044-10-15
AI Technical Summary
The existing motorcycle rear fender injection molds are prone to clogging during the injection process, and the temperature control is complex and energy-consuming, which affects production efficiency and cost.
An injection molding device including a cylinder block, a spiral feed slurry, a heater, an injection motor, an exhaust component and a temperature regulating component is designed. The raw materials are conveyed through the spiral feed slurry, and the heater preheating and temperature regulating component are used to quickly cool and exhaust gas. The components automatically clear the air to avoid blockage and reduce energy consumption.
The fender surface is smooth, energy consumption is reduced, temperature control is simplified, production efficiency is improved and costs are reduced.
Smart Images
Figure CN118927514B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of injection molding, and in particular to an injection molding device for a rear fender of a motorcycle. Background Art
[0002] The rear fender of a motorcycle is a plate structure installed behind the outer frame of the wheel. It is usually made of high-quality rubber material, but it can also be made of engineering plastics. The fenders made by plastic technology are all formed by plastic technology. Injection molding material is introduced into the cavity of the injection mold to manufacture the formed fender. The air present in the cavity and replaced by the injection molding material is released from the cavity through the exhaust device of the injection mold, and the air is communicated with the external space around the injection mold through the exhaust device. In this regard, there are the following problems: First, the injection molding material is discharged from the exhaust opening together with the air to be released. After the injection molding material is solidified, the exhaust opening is easy to be blocked, which affects the next use of the injection mold, and the burrs of the fender must be removed, which increases the labor intensity; second, the injection molding material needs to be preheated before entering the injection mold cavity. If the temperature in the injection mold cavity is too low, the fender will have defects such as insufficient melt filling and excessive surface flow lines. After the cavity is preheated and the melt filling is completed, it is cooled to solidify the fender. A large amount of energy is lost during the injection mold temperature control process, and a series of complex electronic components are used to control it. This method is costly and inconvenient to maintain. Summary of the invention
[0003] The content of this application is used to introduce concepts in a brief form, which will be described in detail in the detailed implementation section below. The content of this application is not intended to identify the key features or essential features of the technical solution claimed for protection, nor is it intended to limit the scope of the technical solution claimed for protection.
[0004] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a motorcycle rear fender injection molding device, including a machine body, a cylinder body fixed on the machine body, a feeding barrel fixed on the cylinder body and connected thereto, a spiral feeding slurry arranged in the cylinder body, a slide seat slidably arranged on the machine body, a metering motor fixed on the slide seat and used to drive the spiral feeding slurry to rotate, an injection motor fixed on the machine body and used to drive the slide seat to move, a heater sleeved on the cylinder body and fixed on the machine body, a left mold fixed on the machine body, a right mold slidably arranged on the machine body and used in conjunction with the left mold, a first cylinder fixed on the machine body and used to drive the right mold to move, a left cavity arranged on the left mold, a right cavity arranged on the right mold, an exhaust assembly arranged on the left mold, a connecting assembly arranged on the cylinder body and the left mold, and a temperature regulating assembly arranged on the left mold and the right mold; after the left cavity and the right cavity are closed, a complete processing cavity for the motorcycle rear fender is formed.
[0005] Further, the exhaust assembly includes a first through hole and a second through hole provided on the left mold, a movable plate passing through and movably provided on the left mold, a third through hole and a fourth through hole provided on the movable plate, an exhaust pipe connected to the second through hole and provided on the left mold, a lifting pipe with one end movably provided in the second through hole, a first rod body passing through and movably provided on the lifting pipe, a second cylinder fixedly provided on the left mold and used for driving the movable plate to slide, a first spring with two ends respectively fixedly provided on the left mold and the lifting pipe, a first limiting plate fixedly provided on the lifting pipe, a bracket fixedly provided on the left mold, a third cylinder fixedly provided on the bracket and used for lifting and lowering the first rod body, a second limiting plate fixedly provided on the first rod body, a first rack fixedly provided on the lifting pipe, a second rack fixedly provided on the first rod body, and a gear rotatably provided on the bracket and meshing with the first rack.
[0006] Furthermore, the aperture of the second through hole is larger than that of the first through hole, the apertures of the second through hole, the third through hole and the fourth through hole are the same in size, and the outer diameter of the first rod body is the same in size as the inner diameter of the first through hole.
[0007] Furthermore, the exhaust assembly also includes a third limit plate and a fourth limit plate fixed on the left mold, a first slide rail provided at one end of the movable plate, a second slide rail provided at the other end of the movable plate, a first slider slidably provided on the first slide rail, a second slider slidably provided on the second slide rail, a second rod body fixed at one end on the first slider, a third rod body fixed at one end on the second slider, a fourth cylinder fixed on the bracket and used to drive the first slide rail to rise and fall, a fifth cylinder fixed on the bracket and used to drive the second slide rail to rise and fall, a second spring whose two ends are respectively fixed on the first slide rail and the first slider, and a third spring whose two ends are respectively fixed on the second slide rail and the second slider.
[0008] Furthermore, the connecting assembly includes an extension tube fixed at one end of the cylinder body and connected thereto, an injection tube with one end passing through and fixed on the extension tube and the other end fixedly inserted into the left mold, a connecting hole provided on the side wall of the injection tube, a fourth rod body with one end movably provided in the injection tube, and a sixth cylinder fixed on the machine body and used to drive the fourth rod body to rise and fall; the injection tube is connected to the left cavity.
[0009] Furthermore, the temperature control component includes a first temperature chamber provided on the left mold, a first extension chamber and a second extension chamber connected to the first temperature chamber and fixedly provided on the left mold, a first base movably provided in the first temperature chamber, a first heating plate and a first cooling plate fixedly provided on the first base, a guide rod which passes through and is movably provided on the left mold and one end of which is fixedly provided on the first base, and a fourth spring with both ends fixedly provided on the other end of the guide rod and on the left mold.
[0010] Furthermore, the temperature control component also includes a second base rotatably arranged on the right mold, a second temperature chamber arranged on the right mold, a second heating plate and a second cooling plate fixedly arranged on the second base, and a motor fixedly arranged on the right mold and used to drive the second base to rotate.
[0011] Furthermore, the temperature control component also includes a rotating rod with one end fixed on the second base, a lifting rod slidably arranged on the right mold, a cross bar fixed on the lifting rod, a connecting rod slidably arranged on the cross bar and rotatably arranged on the rotating rod, a lifting seat slidably arranged on the left mold, a long rod with one end passing through and movably arranged on the lifting rod and the other end fixed on the lifting seat, a hollow telescopic rod with two ends respectively fixed on the first base and the left mold, and a multi-section telescopic rod with two ends respectively fixed on the hollow telescopic rod and the lifting seat; the multi-section telescopic rod is connected to the hollow telescopic rod.
[0012] The beneficial effects of the present invention are:
[0013] The fender raw material is put into the feed barrel, and the raw material in the feed barrel enters the cylinder body. The metering motor is started to rotate the spiral feeding slurry to transport the raw material in the cylinder body. The cylinder body is heated by the heater during the transportation process. The heater is a prior art and will not be described here. Finally, the raw material is heated to make the raw material in the cylinder body molten. The injection motor is started to move the slide. The slide drives the metering motor and the spiral feeding slurry to move together. The molten raw material is injected and injected into the cavity formed by the closure of the left cavity and the right cavity through the connecting component. The cavity is preheated by the temperature component before injection. At the same time, the air in the cavity during the injection process is discharged through the exhaust component. The exhaust component can quickly discharge the air in the cavity and avoid blockage during the air discharge process. It has an automatic clearing function and no burrs will appear at this place, so that the surface of the fender is smooth after formation. The temperature component can be set to preheat the cavity. After the molten raw material fills the cavity, the temperature component is quickly switched to cool the cavity, so that the fender is quickly solidified and formed. Mechanical switching is adopted in the process, which is convenient and fast, and most of the energy consumption can be retained and can be reused, thereby reducing energy consumption and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The drawings constituting a part of this application are used to provide a further understanding of this application, so that other features, purposes and advantages of this application become more obvious. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.
[0015] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the components and elements are not necessarily drawn to scale.
[0016] In the attached picture:
[0017] Figure 1 It is a structural schematic diagram of the present invention;
[0018] Figure 2 for Figure 1 A in the enlarged view;
[0019] Figure 3 It is a front schematic diagram of the present invention;
[0020] Figure 4 for Figure 3 Partial cross-sectional view of line AA;
[0021] Figure 5 for Figure 4 The cross-sectional view of line BB in FIG.
[0022] Figure 6 for Figure 5 The enlarged view of point B in the figure;
[0023] Figure 7 for Figure 6 The enlarged view of point C in the figure;
[0024] Figure 8 for Figure 6 The enlarged view of point D in the figure;
[0025] Fig. 9 for Figure 5 A partial structural cross-sectional view of the CC line;
[0026] Fig.10 for Fig. 9 The enlarged view of point E in the figure;
[0027] Fig.11 A partial structural diagram of a temperature control component. DETAILED DESCRIPTION
[0028] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are only for exemplary purposes and are not intended to limit the scope of protection of the present disclosure.
[0029] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure can be combined with each other.
[0030] It should be noted that the concepts such as "first" and "second" mentioned in the present disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.
[0031] It should be noted that the modifications of "one" and "plurality" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, it should be understood as "one or more".
[0032] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.
[0033] Reference Figure 1-11 As shown, the motorcycle rear fender injection molding device of the present invention comprises a machine body 1, a cylinder body 2 fixedly arranged on the machine body, a feed barrel 3 fixedly arranged on the cylinder body and connected thereto, a spiral feed slurry arranged in the cylinder body, a slide seat 5 slidably arranged on the machine body, a metering motor 6 fixedly arranged on the slide seat and used for driving the spiral feed slurry to rotate, an injection motor 7 fixedly arranged on the machine body and used for driving the slide seat to move, a heater 8 sleeved on the cylinder body and fixedly arranged on the machine body, a left mold 9 fixedly arranged on the machine body, and a The right mold 10 used in conjunction with the first cylinder 11 fixed on the machine body and used to drive the right mold to move, the left cavity 12 provided on the left mold, the right cavity 13 provided on the right mold, the exhaust assembly 14 provided on the left mold, the connecting assembly 15 provided on the cylinder body and the left mold, and the temperature regulating assembly 16 provided on the left mold and the right mold; the left cavity and the right cavity are closed to form a complete processing cavity for the rear fender of the motorcycle; the fender raw material is put into the feed barrel, the raw material in the feed barrel enters the cylinder body, the metering motor is started, and the screw conveyor is driven by the feeder. The slurry rotates to transport the raw materials in the cylinder. During the transportation process, the cylinder is heated by a heater. The heater is a prior art and will not be described here. Finally, the raw materials are heated to make the raw materials in the cylinder molten. The injection motor is started to move the slide. The slide drives the metering motor and the spiral slurry to move together. The molten raw materials are injected and injected into the cavity formed after the left cavity and the right cavity are closed through the connecting component. Before injection, the cavity is preheated by the temperature component. At the same time, the air in the cavity is discharged through the exhaust component during the injection process. The exhaust component can quickly discharge the air in the cavity and avoid blockage at this place during the air discharge process. The automatic clearing function will not cause burrs at this place, so that the surface of the fender is smooth after formation. The temperature component setting can preheat the cavity. After the molten raw material fills the cavity, the temperature component is quickly switched to cool the cavity, so that the fender is quickly solidified and formed. The process adopts mechanical switching, which is convenient and fast, and can retain most of the energy consumption, which can be reused, reduce energy consumption, and save costs.
[0034] The exhaust assembly 14 includes a first through hole 141 and a second through hole 142 provided on the left mold, a movable plate 143 penetrating and movably provided on the left mold, a third through hole 144 and a fourth through hole 145 provided on the movable plate, an exhaust pipe 146 connected to the second through hole and provided on the left mold, a lifting pipe 147 with one end movably provided in the second through hole, a first rod 148 penetrating and movably provided on the lifting pipe, a second cylinder 149 fixedly provided on the left mold and used for driving the movable plate to slide, a first spring 1410 with two ends respectively fixedly provided on the left mold and the lifting pipe, a first limiting plate 1411 fixedly provided on the lifting pipe, a bracket 1412 fixedly provided on the left mold, and a third air cylinder 149 fixedly provided on the bracket and used for lifting the first rod. Cylinder 1413, a second limit plate 1414 fixed on the first rod body, a first rack 1415 fixed on the lifting tube, a second rack 1416 fixed on the first rod body, and a gear 1417 rotatably arranged on the bracket and meshing with the first rack; the aperture of the second through hole is larger than the aperture of the first through hole, the apertures of the second through hole, the third through hole and the fourth through hole are the same, and the outer diameter of the first rod body is the same as the inner diameter of the first through hole; when the molten raw material is injected into the cavity, the third through hole coincides with the second through hole, and the air in the cavity enters the third through hole through the first through hole, enters the second through hole through the third through hole, enters the exhaust duct through the second through hole, and is discharged from the exhaust duct. When the air in the cavity is emptied, part of The molten raw material enters the third through hole through the first through hole, and the third cylinder is started at this time. The third cylinder drives the first rod body to descend, so that the first rod body is inserted into the first through hole, and the molten raw material in the first through hole is pushed back into the cavity to seal the first through hole, and the cavity is cooled to solidify the fender. The descending distance of the first rod body is controlled by the second limit plate so that the lower end of the first rod body is flush with the inner wall of the left cavity; after the fender is demoulded, the third cylinder drives the first rod body to reset, and the second rack on the first rod body moves together. When the second rack is meshed with the gear, the gear transmission drives the lifting tube to descend, that is, after the first rod body rises for a distance, the first rod body rises synchronously with the descending of the lifting tube, and the lifting tube descends to seal the second through hole. Finally, the lower end of the first rod body is flush with the lower end of the lifting tube, and the two are flush with the lower end of the second through hole. The above arrangement can clean the first rod body and prevent the raw material in the molten state from entering the second through hole. The cleaned raw material is stored in the third through hole. The second cylinder drives the moving plate to slide, so that the third through hole and the fourth through hole move together, and finally the third through hole moves to the outside of the left mold. The fourth through hole overlaps with the second through hole, which is convenient for the next use. The third through hole is cleaned, so that the air in the cavity is quickly discharged through the above arrangement, and blockage in the air exhaust process is avoided, and it can be automatically cleaned; during the air exhaust process in the cavity, the lower end of the first rod body is located in the third through hole, and the exhaust duct is connected with the second through hole, so as to ensure the air exhaust in the cavity;The first limiting plate can be used to limit the descending distance of the lifting tube, so that the lower end of the lifting tube is flush with the lower end of the second through hole.
[0035] The exhaust assembly 14 also includes a third limiting plate 1418 and a fourth limiting plate 1419 fixed on the left mold, a first slide rail 1420 provided at one end of the movable plate, a second slide rail 1421 provided at the other end of the movable plate, a first slider 1422 slidably provided on the first slide rail, a second slider 1423 slidably provided on the second slide rail, a second rod 1424 with one end fixed on the first slider, a third rod 1425 with one end fixed on the second slider, a fourth cylinder 1426 fixed on the bracket and used to drive the first slide rail to rise and fall, a fifth cylinder 1427 fixed on the bracket and used to drive the second slide rail to rise and fall, a second spring 1428 with two ends respectively fixed on the first slide rail and the first slider, and a third spring 1429 with two ends respectively fixed on the second slide rail and the second slider; the third through hole moves to the left mold After the outside, the third rod body coincides with the third through hole, the fifth cylinder is started, and the fifth cylinder drives the second slide rail, the second slider and the third rod body to descend together, so that the lower end of the third rod body is inserted into the third through hole, and the third through hole is cleaned. The lower end of the third rod body is flush with the lower end of the third through hole. When the third through hole on the movable plate moves toward the direction of the second through hole, the movable plate drives the third rod body to move together, so that the third rod body and the second slider are located on the second slide rail and slide, so that the third spring is extended, and the left mold can scrape and clean the lower end of the third rod body, and the fifth cylinder drives the second slide rail to reset, so that the third rod body rises and disengages from the third through hole, ensuring that the movable plate can continue to move, and finally the third through hole coincides with the second through hole, and the second slider and the third rod body can be reset through the third spring setting. Similarly, the fourth through hole can be cleaned through the second rod body, and the lower end of the second rod body can be cleaned.
[0036] The connecting assembly 15 includes an extension tube 151 fixed at one end of the cylinder body and connected thereto, an injection tube 152 with one end passing through and fixed on the extension tube and the other end fixedly inserted into the left mold, a connecting hole 153 provided on the side wall of the injection tube, a fourth rod 154 with one end movably provided in the injection tube, and a sixth cylinder 155 fixed on the machine body and used for driving the fourth rod to rise and fall; the injection tube is connected to the left cavity; the sixth cylinder drives the fourth rod to descend, and the raw material in the molten state in the cylinder body enters the extension tube, and the raw material in the extension tube enters the injection tube through the connecting hole. After the injection volume of the raw material reaches the requirement, the sixth cylinder drives the fourth rod to rise, so that the injection tube is disconnected from the extension tube, and the raw material in the injection tube is pushed into the cavity. Finally, the upper end of the fourth rod is flush with the inner wall of the left cavity. The setting of the injection tube avoids the temperature in the cavity from affecting the extension tube, that is, avoids cooling of the raw material in the extension tube during the cooling process of the cavity, and plays a good role in isolating the temperature.
[0037] The temperature control assembly 16 includes a first temperature chamber 161 provided on the left mold, a first extension chamber 162 and a second extension chamber 163 connected to the first temperature chamber and fixedly provided on the left mold, a first base 164 movably provided in the first temperature chamber, a first heating plate 165 and a first cooling plate 166 fixedly provided on the first base, a guide rod 167 movably provided on the left mold and one end of which is fixedly provided on the first base, and two ends of a fourth spring 168 fixedly provided on the other end of the guide rod and on the left mold; the temperature control assembly 16 also includes a second base 169 rotatably provided on the right mold, a second temperature chamber 1610 provided on the right mold, a second heating plate 1611 fixedly provided on the second base, and a second cooling plate 166 fixedly provided on the second base. 612, a motor 1613 fixed on the right mold and used to drive the second base to rotate; the temperature control component 16 also includes a rotating rod 1614 with one end fixed on the second base, a lifting rod 1615 slidably arranged on the right mold, a cross bar 1616 fixed on the lifting rod, a connecting rod 1617 slidably arranged on the cross bar and rotatably arranged on the rotating rod, a lifting seat 1618 slidably arranged on the left mold, a long rod 1619 with one end passing through and movably arranged on the lifting rod and the other end fixed on the lifting seat, a hollow telescopic rod 1620 with two ends respectively fixed on the first base and the left mold, and a multi-section telescopic rod 1621 with two ends respectively fixed on the hollow telescopic rod and the lifting seat; the multi-section telescopic rod and the hollow telescopic rod are connected to each other. The shrink rod is connected to the setting; when the cavity is preheated, the first heating plate and the second heating plate are respectively located in the first temperature cavity and the second temperature cavity, and the first temperature cavity and the second temperature cavity heat the left cavity and the right cavity. After the molten raw material is injected into the left cavity and the right cavity, the motor is started. The motor is purchased on the market. The motor drives the second base to rotate 180°, so that the second heating plate and the second refrigeration plate are switched, so that the second refrigeration plate is located in the second temperature cavity to cool the right cavity. The second base drives the rotating rod to rotate during the rotation process, and the cross rod and the lifting rod are set by the connecting rod to make the cross rod and the lifting rod descend together. The lifting rod is set by the long rod to make the lifting seat drive the lifting seat to descend together, and the lifting seat descends with The multi-section telescopic rod is contracted, so that the air in the multi-section telescopic rod is injected into the hollow telescopic rod, so that the hollow telescopic rod is extended, and the first base is driven to move, and the first heating plate and the first cooling plate are driven to move together, so that the first heating plate is moved into the first extension cavity, and the first extension cavity keeps the heating plate warm, so that the first cooling plate is moved into the first temperature cavity, and the left cavity is cooled. The switching is convenient and fast, and the switching work is automatically completed. The first cooling plate is kept warm by the second extension cavity, and the second heating plate and the second cooling plate can be kept warm during the switching process by the right mold setting, so that energy consumption can be saved, and the left cavity and the right cavity can be quickly preheated or cooled. The overall switching adopts a mechanical method, with low manufacturing cost and convenient and fast operation.When the first refrigeration plate and the second refrigeration plate are respectively located in the first temperature cavity and the second temperature cavity, that is, when the two are cooling the left cavity and the right cavity, the first heating plate and the second heating plate can be powered off. Similarly, when the first heating plate and the second heating plate are preheating the left cavity and the right cavity, the first refrigeration plate and the second refrigeration plate can be powered off to reduce energy consumption. ;
[0038] The above descriptions are only some preferred embodiments of the present disclosure and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the embodiments of the present disclosure is not limited to the technical solutions formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.
Claims
1. A motorcycle rear fender injection molding device, comprising a machine body (1), a cylinder body (2) fixedly mounted on the machine body (1), a feed barrel (3) fixedly mounted on the cylinder body (2) and connected thereto, a screw feed slurry (4) arranged in the cylinder body (2), a slide seat (5) slidably mounted on the machine body (1), a metering motor (6) fixedly mounted on the slide seat (5) and used to drive the screw feed slurry (4) to rotate, an injection motor (7) fixedly mounted on the machine body (1) and used to drive the slide seat (5) to move, a heater (8) sleeved on the cylinder body (2) and fixedly mounted on the machine body (1), a left mold (9) fixedly mounted on the machine body (1), and a mold (10) slidably mounted on the cylinder body (2). A right mold (10) on a machine body (1) and used in conjunction with a left mold (9), a first cylinder (11) fixedly arranged on the machine body (1) and used to drive the right mold (10) to move, a left cavity (12) arranged on the left mold (9), a right cavity (13) arranged on the right mold (10), an exhaust assembly (14) arranged on the left mold (9), a connecting assembly (15) arranged on the cylinder body (2) and the left mold (9), and a temperature regulating assembly (16) arranged on the left mold (9) and the right mold (10); when the left cavity (12) and the right cavity (13) are closed, a complete processing cavity for a motorcycle rear fender is formed; the characteristics are as follows: The exhaust assembly (14) comprises a first through hole (141) and a second through hole (142) provided on the left mold (9), a movable plate (143) movably provided on the left mold (9) and penetrating therethrough, a third through hole (144) and a fourth through hole (145) provided on the movable plate (143), an exhaust pipe (146) connected to the second through hole (142) and provided on the left mold (9), a lifting pipe (147) movably provided at one end in the second through hole (142), a first rod (148) movably provided on the lifting pipe (147), a second cylinder (149) fixedly provided on the left mold (9) and used for driving the movable plate (143) to slide, and two ends of the second cylinder (149) fixedly provided on the left mold (9) and used for driving the movable plate (143) to slide. A first spring (1410) on the left mold (9) and the lifting tube (147), a first limit plate (1411) fixedly mounted on the lifting tube (147), a bracket (1412) fixedly mounted on the left mold (9), a third cylinder (1413) fixedly mounted on the bracket (1412) and used for lifting the first rod (148), a second limit plate (1414) fixedly mounted on the first rod (148), a first rack (1415) fixedly mounted on the lifting tube (147), a second rack (1416) fixedly mounted on the first rod (148), and a gear (1417) rotatably mounted on the bracket (1412) and meshing with the first rack (1415); The exhaust assembly (14) further comprises a third limiting plate (1418) and a fourth limiting plate (1419) fixedly mounted on the left mold (9), a first slide rail (1420) disposed at one end of the movable plate (143), a second slide rail (1421) disposed at the other end of the movable plate (143), a first slider (1422) slidably mounted on the first slide rail (1420), a second slider (1423) slidably mounted on the second slide rail (1421), a second rod body (1424) having one end fixedly mounted on the first slider (1422), and a second rod body (1425) having one end fixedly mounted on the first slider (1422). A third rod (1425) on the second slider (1423), a fourth cylinder (1426) fixed on the bracket (1412) and used to drive the first slider (1420) to move up and down, a fifth cylinder (1427) fixed on the bracket (1412) and used to drive the second slider (1421) to move up and down, a second spring (1428) with two ends respectively fixed on the first slider (1420) and the first slider (1422), and a third spring (1429) with two ends respectively fixed on the second slider (1421) and the second slider (1423); The temperature adjustment component (16) comprises a first temperature chamber (161) arranged on the left mold (9), a first extension chamber (162) and a second extension chamber (163) which are connected to the first temperature chamber (161) and fixedly arranged on the left mold (9), a first base (164) which is movably arranged in the first temperature chamber (161), a first heating plate (165) and a first cooling plate (166) which are fixedly arranged on the first base (164), a guide rod (167) which passes through and is movably arranged on the left mold (9) and has one end fixedly arranged on the first base (164), and a fourth spring (168) whose two ends are fixedly arranged on the other end of the guide rod (167) and on the left mold (9); The temperature adjustment component (16) further comprises a second base (169) rotatably arranged on the right mold (10), a second temperature chamber (1610) arranged on the right mold (10), a second heating plate (1611) and a second cooling plate (1612) fixedly arranged on the second base (169), and a motor (1613) fixedly arranged on the right mold (10) and used for driving the second base (169) to rotate; The temperature control assembly (16) further comprises a rotating rod (1614) fixedly mounted on the second base (169) at one end, a lifting rod (1615) slidably mounted on the right mold (10), a cross bar (1616) fixedly mounted on the lifting rod (1615), a connecting rod (1617) slidably mounted on the cross bar (1616) and rotatably mounted on the rotating rod (1614), a lifting seat (1618) slidably mounted on the left mold (9), and a movable A long rod (1619) is arranged on the lifting rod (1615) and the other end of which is fixed on the lifting seat (1618); a hollow telescopic rod (1620) whose two ends are respectively fixed on the first base (164) and the left mold (9); and a multi-section telescopic rod (1621) whose two ends are respectively fixed on the hollow telescopic rod (1620) and the lifting seat (1618); the multi-section telescopic rod (1621) is connected to the hollow telescopic rod (1620).
2. A motorcycle rear fender injection molding device according to claim 1, characterized in that: The diameter of the second through hole (142) is larger than that of the first through hole (141); the diameters of the second through hole (142), the third through hole (144) and the fourth through hole (145) are the same; and the outer diameter of the first rod body (148) is the same as the inner diameter of the first through hole (141).
3. The motorcycle rear fender injection molding device according to claim 1, characterized in that: The connecting assembly (15) comprises an extension tube (151) fixedly arranged at one end of the cylinder body (2) and connected thereto, an injection tube (152) having one end passing through and fixedly arranged on the extension tube (151) and the other end fixedly inserted into the left mold (9), a connecting hole (153) arranged on the side wall of the injection tube (152), a fourth rod (154) having one end movably arranged in the injection tube (152), and a sixth cylinder (155) fixedly arranged on the machine body (1) and used for driving the fourth rod (154) to move upward and downward; the injection tube (152) is connected to the left mold cavity (12).