A secondary plastic shaping device for recycling plastic of a limiting box of an automobile limiter

Abstract

This invention discloses a device for secondary shaping of recycled plastic in automotive limiter boxes, relating to the field of automotive limiter box manufacturing technology. It includes a base and a bottom platform fixedly connected to it via columns. A rotating mechanism is provided on the upper side of the bottom platform, and a hot-pressing mechanism is located near the front of the upper side of the rotating mechanism. The rotating mechanism includes a ring-shaped turntable and several ring-shaped components arranged thereon. The lower side of the ring-shaped turntable is rotatably connected to the upper side of the bottom platform. The ring-shaped turntable rotates clockwise, causing all the shaping components to sequentially pass through the front side. This device for secondary shaping of recycled plastic in automotive limiter boxes, by driving multiple shaping components to revolve, achieves the cyclical conversion of the shaping components in the loading / unloading area, heating area, hot-pressing area, and cooling area. This prevents the limiter box from being transferred in other forms during the heating process, improving product yield and reducing time consumption caused by transfer.

Description

Technical Field

[0001] This invention relates to the field of automotive limiter box manufacturing technology, and in particular to a device for secondary reshaping of recycled plastic from automotive limiter boxes. Background Technology

[0002] The function of a door opening limiter is to restrict the extent to which a car door can be opened. It limits the maximum opening angle of the door, preventing it from opening too wide. Furthermore, it can keep the door open when needed, such as when the car is parked on a slope or in a moderate wind, preventing the door from closing automatically. During production, 20%-30% recycled material is often mixed with virgin material. Simultaneously, a hot-pressing device is used to perform a secondary hot-pressing shaping process on the injection-molded limiter box, which improves dimensional accuracy and eliminates assembly defects.

[0003] Chinese patent document CN111216342A discloses a fiberboard composite board processing method, particularly relating to a secondary shaping device for fiberboard composite boards. The technical problem this invention aims to solve is to provide a secondary shaping device for fiberboard composite boards. This device includes an orientation processing mechanism, a fiberglass grating, a positioning and feeding mechanism, a shaping mechanism, a final shaping mechanism, and a control panel; the fiberglass grating is placed on the top left side of the orientation processing mechanism. This invention enables the stacking and automatic feeding of fiberglass grating, combined with multi-angle, thorough cleaning, sludge separation, drying after cleaning, softening and adjusting the deformation state, and then replenishing material for reshaping. This maintains the original grating characteristics, preventing bending, deformation, and wear, thus achieving secondary shaping of fiberglass grating for stair treads, increasing the service life of the fiberglass grating, and reducing resource waste.

[0004] The existing technology has the following problems: Existing secondary shaping equipment requires the use of heating equipment, transfer equipment, cooling equipment and other components. The entire secondary shaping process requires manual or automated methods to flip and take the parts that need to be shaped from the mold. This may cause excessive force during the transfer process, which may cause the product that has just been heated to be squeezed and deformed. Summary of the Invention

[0005] The main objective of this invention is to provide a device for the secondary shaping of recycled plastic in automotive limiter boxes, which can effectively solve the problem of potential extrusion deformation caused by the transfer of heated products.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A device for reshaping recycled plastic from a car limiter limit box includes a base and a bottom platform fixedly connected to it by a column. A rotating mechanism is provided on the upper side of the bottom platform, and a hot pressing mechanism is provided on the upper side of the rotating mechanism near the front side. The rotating mechanism includes an annular turntable and a plurality of annularly distributed shaping components on it. The lower side of the annular turntable is rotatably connected to the upper side of the bottom platform. The annular turntable rotates clockwise, causing all the shaping components to pass through the front side in sequence, and then all the shaping components to pass through the back side in sequence. The hot pressing mechanism performs hot pressing on the shaping components at the front side, preheats the shaping components on the right side, cools the shaping components on the left side, and performs loading and unloading operations on the shaping components at the back side.

[0007] Preferably, an annular cover is fixedly connected to the upper side of the base platform, and an opening is provided on the rear side of the annular cover. A cross plate is rotatably connected to the inner side of the annular cover near the rear side, and the cross plate is located on the right side of the opening. The cross plate is used to block the right opening on the rear side of the annular cover. When the annular turntable rotates clockwise, and the rotation angle is the degree of the included angle between adjacent shaping components, the shaping component rotates 90 degrees clockwise.

[0008] Preferably, the shaping component includes a top shaping mold and a bottom shaping mold distributed vertically. The lower side of the bottom shaping mold is fixedly connected to the upper side of the annular turntable. A retaining seat is fixedly connected to the upper side of the top shaping mold. The hot pressing mechanism includes a lifting plate driven by an electric cylinder to move up and down, two left and right isolation plates, and a hanging plate. An elastic telescopic rod is fixedly connected between the upper side of the hanging plate and the lower side of the isolation plate. The isolation plate and the elastic telescopic rod pass through the upper wall of the annular cover, and the isolation plate is located on both sides of the foremost shaping component. The lifting plate drives the hanging plate and the isolation plate to move up and down, and the outer side of the isolation plate is movably sleeved on the inner side of the retaining seat.

[0009] Preferably, a rotating frame is fixedly connected to the side of the shaping top mold near the inner side of the annular turntable. A sliding frame is slidably connected to the bottom of the rotating frame. The lower side of the sliding frame is fixedly connected to the upper side of the annular turntable, and the rotating frame can rotate relative to the sliding frame. A pusher is attached to the bottom of the rotating frame. A guide platform communicating with the inner side of the annular cover is fixedly connected to the lower side of the base. A guide rod sleeved in the guide platform is fixedly connected to the lower end of the pusher through the annular turntable. The three pushers located on the rear side and the right side are pushed to the highest position by the guide platform.

[0010] Preferably, a guide frame is fixedly connected to the inner side of the annular cover near the rear side. The rear convex shafts of the three shaping top molds located at the rearmost side are slidably connected to the inner side of the guide frame. When the annular turntable rotates clockwise, causing the convex shaft on each shaping top mold to slide from the left end to the right end of the guide frame, the shaping top mold rotates relative to the sliding frame and then resets. When the shaping top mold is located at the rearmost side, the distance between the shaping top mold and the shaping bottom mold is the largest.

[0011] Preferably, two pressure plates symmetrically distributed front and back are fitted onto the inner and outer walls of the annular cover near the front side, and the lower side of the pressure plates overlaps the upper side of the foremost shaping top mold. Several horizontally distributed push grooves are provided on the upper and lower sides of the two pressure plates, and push plates driven to move by the lifting plate are fitted onto the inner side of the push grooves. The inner and outer walls of the annular cover are provided with reset components for resetting the pressure plates. When the push plate moves from the highest point to the lowest point, the pressure plates will separate from each other and then reset under the drive of the reset components.

[0012] Preferably, the inner side of the annular cover is fixedly connected to a pressure table for pressing down the top mold. When the lifting plate drives the push plate to move up and just disengages from the push groove, the elastic telescopic rod still drives the hanging plate to press down the top mold at the front. When the molding component moves from the front to the left, the top mold moves from being pressed down by the pressure plate to being pressed down by the pressure table. When the molding component on the left moves to the position of the three molding components near the back, the top mold disengages from the pressure table.

[0013] Preferably, each of the several shaping bottom molds has two water pipes fixedly connected to its lower side, and the water pipes pass through the base platform to its lower side. Each of the several shaping bottom molds has several annularly distributed sleeves fixedly connected to its outer side, and each of the several shaping top molds has several annularly distributed inserts fixedly connected to its outer side. When the shaping bottom mold and the shaping top mold are interlocked, the outer side of the insert is sleeved on the inner side of the sleeve. The inner sidewalls of the shaping bottom mold and the shaping top mold are provided with channels for communicating with the water pipes, and the channels pass through the inserts.

[0014] Preferably, each of the water pipes is equipped with a valve to control its opening and closing. Each of the valves is rotatably connected to an adjusting plate driven by a torsion spring on one side close to the other. A guide ring for pressing down the adjusting plate is fixedly connected to the lower side of the base. When the water pipe moves to the left side of the annular turntable, the adjusting plate is in an unpressurized state, and the water flow inside the water pipe is automatically circulated.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention provides a secondary plastic reshaping device for automotive limiter limit boxes. Based on the cooperation of a rotating mechanism, annular turntable, shaping components, shaping bottom mold, shaping top mold, sliding frame, rotating frame, push frame, guide rod, top plate, card seat, cross plate, hot pressing mechanism, lifting plate, isolation plate, elastic telescopic rod, hanging plate, pressure plate, push groove, push plate and reset component, multiple shaping components are driven to revolve, realizing the cyclical conversion of shaping components in the loading and unloading area, heating area, hot pressing area and cooling area. This ensures that the limit box will not be transferred in other forms during the heating process, improving the product yield and reducing the time consumption caused by transfer.

[0016] 2. This invention provides a secondary plastic reshaping device for automotive limiter limit boxes. Based on the cooperation of the bottom mold, top mold, sliding frame, sleeve, insert, guide ring, water pipe, valve and adjusting plate, the opening and closing of the valve is controlled by rotation, so that the water pipe can only pass water in the cooling zone, thereby realizing the water cooling operation in the rotating state and accelerating the cooling of the bottom mold. Attached Figure Description

[0017] Figure 1 This is a front-view stereoscopic structural diagram of the present invention; Figure 2 This is a rear-view stereoscopic structural diagram of the present invention; Figure 3 This is a partial cross-sectional three-dimensional structural schematic diagram of the present invention; Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the annular cover portion of the present invention; Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the annular turntable portion of the present invention; Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the hot pressing mechanism of the present invention; Figure 7 This is a three-dimensional structural diagram of the shaping component part of the present invention; Figure 8 For the present invention Figure 6 Enlarged structural diagram of part A in the middle; Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the guide platform portion of the present invention; Figure 10 This is a three-dimensional structural diagram of the guide frame portion of the present invention; Figure 11 This is a three-dimensional structural diagram of the guide ring missing part of the present invention.

[0018] In the diagram: 1. Base; 2. Bottom platform; 3. Rotating mechanism; 31. Annular turntable; 32. Shaping component; 321. Shaping bottom mold; 322. Shaping top mold; 323. Sliding frame; 324. Rotating frame; 325. Push frame; 326. Guide rod; 327. Top plate; 328. Sleeve; 329. Insertion tube; 3210. Card seat; 33. Cross plate; 34. Guide platform; 35. Guide missing ring; 36. Water pipe; 37. Valve; 38. Adjusting plate; 39. Guide frame; 4. Hot pressing mechanism; 41. Lifting plate; 42. Isolation plate; 43. Elastic telescopic rod; 44. Hanging plate; 45. Pressure plate; 46. Push groove; 47. Push plate; 48. Reset component; 5. Annular cover; 6. Opening; 7. Pressing platform. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0020] Example 1, as Figures 1-4 As shown, a secondary plastic reshaping device for a car limiter limit box includes a base 1 and a bottom platform 2 fixedly connected to it by a column. A rotating mechanism 3 is provided on the upper side of the bottom platform 2. The overall structure of the bottom platform 2 is ring-shaped. A hot pressing mechanism 4 is provided on the upper side of the rotating mechanism 3 near the front side. The rotating mechanism 3 includes a ring turntable 31 and a number of ring-shaped components 32 arranged thereon. The lower side of the ring turntable 31 is rotatably connected to the upper side of the bottom platform 2. The annular turntable 31 rotates clockwise, causing all the shaping components 32 to pass through the front side in sequence. The annular turntable 31 is driven by a motor to rotate a gear ring, which drives the annular turntable 31 to rotate on the base platform 2. Then, it drives all the shaping components 32 to pass through the back side in sequence. The hot pressing mechanism 4 performs hot pressing on the shaping component 32 at the front side, preheats the shaping component 32 on the right side, cools the shaping component 32 on the left side, and loads and unloads the shaping component 32 at the back side.

[0021] Example 2, as Figures 5-10 As shown, an annular cover 5 is fixedly connected to the upper side of the base 2. The annular cover 5 has a heat preservation function. An opening 6 is provided on the rear side of the annular cover 5. The position of the opening 6 is used for external feeding equipment, such as a robotic arm to load and unload products that require secondary shaping. A cross plate 33 is rotatably connected to the inner side of the annular cover 5 near the rear side. The annular cover 5 has a structure for sealing the side of the cross plate 33, and the cross plate 33 is located on the right side of the opening 6. The cross plate 33 is used to seal the right opening at the rear of the annular cover 5. When the annular turntable 31 rotates clockwise, and the rotation angle is the angle between the adjacent shaping components 32, the shaping components 32 rotate 90 degrees clockwise. The cross plate 33 can be driven by active rotation or by linkage, and can be driven by gears and gear rings to rotate.

[0022] Preferably, the shaping component 32 includes a top shaping mold 322 and a bottom shaping mold 321 distributed vertically. The top shaping mold 322 and the bottom shaping mold 321 are interlocked to perform secondary shaping. The bottom shaping mold 321 has an active heating component and is a common existing self-heating mold. The lower side of the bottom shaping mold 321 is fixedly connected to the upper side of the annular turntable 31, and the upper side of the top shaping mold 322 is fixedly connected to a retainer 3210. The hot pressing mechanism 4 includes a lifting plate 41 driven by an electric cylinder to move up and down, two isolation plates 42 on the left and right, and a hanging plate 44. The isolation plates 42 have a heat insulation function to prevent heat exchange between the left and right sides. An elastic telescopic rod 43 is fixedly connected between the upper side of the hanging plate 44 and the lower side of the isolation plate 42. When the elastic telescopic rod 43 is fully extended, the hanging plate 44 is located on the lower side of the isolation plate 42. The isolation plate 42 and the elastic telescopic rod 43 pass through the upper wall of the annular cover 5, and the isolation plate 42 is located on both sides of the foremost shaping component 32. The lifting plate 41 drives the hanging plate 44 and the isolation plate 42 to move up and down, and the outer side of the isolation plate 42 is movably sleeved on the inner side of the card holder 3210. When the annular turntable 31 rotates and drives the shaping component 32 to rotate, the card holder 3210 automatically slides into the inner side of the hanging plate 44, at which time the hanging plate 44 is at its highest point.

[0023] Preferably, a rotating frame 324 is fixedly connected to the side of the shaping mold 322 near the inner side of the annular turntable 31. A sliding frame 323 is slidably connected to the bottom of the rotating frame 324. The sliding frame 323 is used to limit the rotating frame 324. The lower side of the sliding frame 323 is fixedly connected to the upper side of the annular turntable 31, and the rotating frame 324 can rotate relative to the sliding frame 323. A top plate 327 is fixedly connected to the rotating frame 324. When the shaping mold 322 is in a horizontal state, the top plate 327 presses against the side of the pusher 325 to stabilize the horizontal state of the shaping mold 322. A pusher 325 is attached to the bottom of the rotating frame 324. When the pusher 325 moves upward, it will push the rotating frame 324. At the same time, the presence of the pusher 325 does not affect the rotation of the rotating frame 324 on the sliding frame 323. A guide platform 34, which communicates with the inner side of the annular cover 5, is fixedly connected to the lower side of the base platform 2. The guide platform 34 has two planes, an upper and a lower plane, which are smoothly connected. The lower end of the pusher 325 passes through the annular turntable 31 and is fixedly connected to a guide rod 326 that is sleeved inside the guide platform 34. The three pushers 325 located on the rear side and the right side are pushed to the highest position by the guide platform 34. When the annular turntable 31 rotates and drives the guide rod 326 to move from the lower plane to the higher plane inside the guide platform 34, the guide rod 326 will be pushed up the guide platform 34.

[0024] Preferably, a guide frame 39 is fixedly connected to the inner side of the annular cover 5 near the rear side. A slide rail with the same cross-section as the guide frame 39 can be set inside the annular cover 5 so that the shaping top mold 322 is in a horizontal state, stabilizing the shaping top mold 322. The rear convex shafts of the three shaping top molds 322 located at the rear side are slidably connected to the inner side of the guide frame 39. When the annular turntable 31 rotates clockwise so that the convex shaft on each shaping top mold 322 slides from the left end to the right end of the guide frame 39, the shaping top mold 322 rotates relative to the sliding frame 323 and then resets. When the shaping top mold 322 is located at the rear side, the distance between the shaping top mold 322 and the shaping bottom mold 321 is the largest.

[0025] It should be noted that the annular turntable 31 drives all the shaping components 32 to revolve. The shaping components 32 are loaded at the rear and then enter the right side. At this time, the top shaping mold 322 and the bottom shaping mold 321 separate from each other. The bottom shaping mold 321 heats the limiting box. When the shaping component 32 rotates to the front, the card holder 3210 is inserted into the hanging plate 44. Then the hanging plate 44 moves down, so that the top shaping mold 322 and the bottom shaping mold 321 are engaged, completing the hot pressing process. Subsequently, the shaping component 32 rotates to the left side for cooling. When the shaping component 32 rotates back to the rear, the top shaping mold 322 and the bottom shaping mold 321 separate from each other.

[0026] Preferably, two pressure plates 45 are symmetrically distributed on the inner and outer walls of the annular cover 5 near the front side. The pressure plates 45 press down on the top mold 322, so that when the hanging plate 44 is reset, the top mold 322 and the bottom mold 321 will not separate. The lower side of the pressure plate 45 overlaps the upper side of the frontmost top mold 322. Several horizontally distributed push grooves 46 are provided on the upper and lower sides of the two pressure plates 45. The inner side of each push groove 46 is fitted with a push plate 47 driven to move by the lifting plate 41. The inner side of the push groove 46 is triangular, and the push plate 47 is trapezoidal. The inclined surface inside the push groove 46 fits with the inclined surface of the push plate 47. When the push plate 47 moves down, it will push the pressure plates 45 to separate from each other. Both the inner and outer walls of the annular cover 5 are provided with reset components 48 for resetting the pressure plate 45. The reset components 48 use springs to push the plates on the pressure plate 45, so that the pressure plates 45 move closer to each other. When the push plate 47 moves from the highest point to the lowest point, the pressure plates 45 will separate from each other and then be reset under the drive of the reset components 48. Conversely, when the push plate 47 moves from the lowest point to the highest point, the pressure plates 45 will also separate from each other and be reset by the reset components 48.

[0027] Preferably, the inner side of the annular cover 5 is fixedly connected to a pressure table 7 for pressing down the molding die 322. The lower side of the pressure table 7 is provided with a spring-driven roller, which reduces the friction between the pressure table 7 and the molding die 322 while providing downward pressure on the molding die 322. The pressure plate 45 can adopt the same type of structure. When the lifting plate 41 drives the push plate 47 to move upward and just disengages from the push groove 46, the elastic telescopic rod 43 still drives the hanging plate 44 to press down the foremost molding die 322. Since the pressure plate 45 has been reset, the molding die 322 will not move upward in subsequent operations. When the molding component 32 rotates from the foremost side to the left side, the molding die 322 is pressed down from the pressure plate 45 to the pressure table 7. When the molding component 32 on the left side rotates to the position of the three molding components 32 near the last side, the molding die 322 disengages from the pressure table 7.

[0028] Example 3, as Figure 11 As shown, two water pipes 36 are fixedly connected to the lower side of several plastic bottom molds 321, and the water pipes 36 pass through the base platform 2 to its lower side. Two annular water tanks can be set on the base platform 1, one for water outlet and one for water inlet. The bottom of the water pipes 36 can be connected to the water pipes 36 in the form of a ring plate. Several annularly distributed sleeves 328 are fixedly connected to the outer sides of several molding bottom molds 321, and several annularly distributed inserts 329 are fixedly connected to the outer sides of several molding top molds 322. The inserts 329 and sleeves 328 are interlocked and can also serve as a calibration function between the molding top mold 322 and molding bottom mold 321 when they are interlocked. When the molding bottom mold 321 and molding top mold 322 are interlocked, the outer side of the insert 329 is sleeved on the inner side of the sleeve 328. The inner sidewalls of the molding bottom mold 321 and molding top mold 322 are provided with channels for water pipes 36. Water is poured into the channels from the water inlet pipe 36 through the inserts 329, and at the same time, it enters the channels on the molding top mold 322 through the inserts 329, and then the water is discharged from the water outlet pipe 36 to achieve a cooling effect.

[0029] Preferably, each of the several water pipes 36 is equipped with a valve 37 to control its opening and closing. The valve 37 is controlled to open and close by rotation. Each of the several valves 37 is rotatably connected to a torsion spring driven adjusting plate 38 on the side close to each other. The adjusting plate 38 acts as a handle structure on a conventional valve body. A guide ring 35 for pressing down the adjusting plate 38 is fixedly connected to the lower side of the base 2. When the water pipe 36 moves to the left side of the annular turntable 31, the adjusting plate 38 is in an unpressurized state, and at the same time, the water flow inside the water pipe 36 is automatically circulated.

[0030] It should be noted that when the annular turntable 31 drives the shaping component 32, causing the shaping component 32 to approach the three positions on the rear side, the adjusting plate 38 just contacts the guide ring 35. As the annular turntable 31 continues to rotate, the guide ring 35 pushes the adjusting plate 38, causing the valve 37 to close. When the shaping component 32 rotates to the front side, and then rotates again, the guide ring 35 no longer restricts the adjusting plate 38, causing the valve 37 to open. Then, water is circulated through the water pipe 36 into the shaping top mold 322 and the shaping bottom mold 321 to achieve a cooling effect.

[0031] The working principle of this invention is as follows: First, the annular turntable 31 drives all the shaping components 32 to revolve. The shaping components 32 are loaded at the rear and then move to the right side. At this time, the top molding die 322 and the bottom molding die 321 separate. The bottom molding die 321 heats the limiting box. When the shaping component 32 rotates to the front, the retainer 3210 engages with the hanging plate 44. Then, the hanging plate 44 moves down, causing the top molding die 322 and the bottom molding die 321 to engage, completing the hot pressing process. Subsequently, the shaping component 32 rotates to the left for cooling. When the shaping component 32 rotates back to the rear, the top molding die 322 and the bottom molding die 321 separate. By driving multiple shaping components 32 to revolve, the shaping components 32 cyclically switch between the loading / unloading area, heating area, hot pressing area, and cooling area, ensuring that the limiting box does not... Using other transfer methods improves product yield and reduces time consumption caused by transfer. Finally, the annular turntable 31 drives the shaping component 32 so that when the shaping component 32 approaches the three positions on the back side, the adjusting plate 38 just contacts the guide ring 35. As the annular turntable 31 continues to rotate, the guide ring 35 pushes the adjusting plate 38, causing the valve 37 to close. When the shaping component 32 rotates to the front side, it rotates again, and the guide ring 35 no longer restricts the adjusting plate 38, causing the valve 37 to open. Then, water is circulated through the water pipe 36 to the top mold 322 and the bottom mold 321 to achieve a cooling effect. By rotating to control the opening and closing of the valve 37, water can be circulated through the water pipe 36 only in the cooling zone, thus realizing water cooling operation in the rotating state and accelerating the cooling of the bottom mold 321.

[0032] The foregoing has shown and described 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 to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A device for secondary shaping of recycled plastic in a car limiter limit box, comprising a base (1) and a bottom platform (2) fixedly connected thereto by a column, characterized in that: The upper side of the base (2) is provided with a rotating mechanism (3), and the upper side of the rotating mechanism (3) is provided with a hot pressing mechanism (4) near the front side. The rotating mechanism (3) includes an annular turntable (31) and a number of annularly distributed shaping components (32) on it. The lower side of the annular turntable (31) is rotatably connected to the upper side of the base (2). The annular turntable (31) rotates clockwise, causing all the shaping components (32) to pass through the front side in sequence, and then causing all the shaping components (32) to pass through the back side in sequence. The hot pressing mechanism (4) performs hot pressing on the shaping component (32) at the front side, preheats the shaping component (32) on the right side, cools the shaping component (32) on the left side, and loads and unloads the shaping component (32) at the back side.

2. The device for secondary shaping of recycled plastic in a car limiter limit box according to claim 1, characterized in that: An annular cover (5) is fixedly connected to the upper side of the base (2). An opening (6) is provided on the rear side of the annular cover (5). A cross plate (33) is rotatably connected to the inner side of the annular cover (5) near the rear side. The cross plate (33) is located on the right side of the opening (6). The cross plate (33) is used to block the right opening on the rear side of the annular cover (5). When the annular turntable (31) rotates clockwise, and the rotation angle is the degree of the angle between the adjacent shaping components (32), the shaping components (32) rotate 90 degrees clockwise.

3. The device for secondary shaping of recycled plastic in a car limiter limit box according to claim 2, characterized in that: The shaping component (32) includes a top shaping mold (322) and a bottom shaping mold (321) distributed vertically. The lower side of the bottom shaping mold (321) is fixedly connected to the upper side of the annular turntable (31). The upper side of the top shaping mold (322) is fixedly connected to a retaining seat (3210). The hot pressing mechanism (4) includes a lifting plate (41) driven by an electric cylinder to move up and down, two left and right isolation plates (42), and a hanging plate (44). An elastic telescopic rod (43) is fixedly connected between the upper side of the hanging plate (44) and the lower side of the isolation plate (42). The isolation plate (42) and the elastic telescopic rod (43) pass through the upper wall of the annular cover (5), and the isolation plate (42) is located on both sides of the foremost shaping component (32). The lifting plate (41) drives the hanging plate (44) and the isolation plate (42) to move up and down, and the outer side of the isolation plate (42) is movably sleeved on the inner side of the retaining seat (3210).

4. The device for secondary shaping of recycled plastic in a car limiter limit box according to claim 3, characterized in that: The shaping mold (322) is fixedly connected to a rotating frame (324) on the side near the inner side of the annular turntable (31). The bottom of the rotating frame (324) is slidably connected to a sliding frame (323). The lower side of the sliding frame (323) is fixedly connected to the upper side of the annular turntable (31), and the rotating frame (324) can rotate relative to the sliding frame (323). The bottom of the rotating frame (324) is connected to a pusher (325). The lower side of the base (2) is fixedly connected to a guide platform (34) that communicates with the inner side of the annular cover (5). The lower end of the pusher (325) passes through the annular turntable (31) and is fixedly connected to a guide rod (326) that is sleeved in the guide platform (34). The three pushers (325) located on the rear side and the right side are pushed to the highest point by the guide platform (34).

5. The device for secondary shaping of recycled plastic in a car limiter limit box according to claim 3, characterized in that: A guide frame (39) is fixedly connected to the inner side of the annular cover (5) near the rear side. The rear convex shafts of the three shaping top molds (322) located at the rear side are slidably connected to the inner side of the guide frame (39). When the annular turntable (31) rotates clockwise, causing the convex shaft on each shaping top mold (322) to slide from the left end to the right end of the guide frame (39), the shaping top mold (322) rotates relative to the sliding frame (323) and then resets. When the shaping top mold (322) is located at the rear side, the distance between the shaping top mold (322) and the shaping bottom mold (321) is the largest.

6. The device for secondary shaping of recycled plastic in a car limiter limit box according to claim 3, characterized in that: The inner and outer walls of the annular cover (5) are fitted with two pressure plates (45) symmetrically distributed in front and back, and the lower side of the pressure plate (45) overlaps the upper side of the foremost shaping mold (322). Several horizontally distributed push grooves (46) are provided on the upper and lower sides of the two pressure plates (45). Push plates (47) driven to move by the lifting plate (41) are fitted on the inner side of the push grooves (46). The inner and outer walls of the annular cover (5) are provided with reset components (48) for resetting the pressure plates (45). When the push plate (47) moves from the highest point to the lowest point, the pressure plates (45) will separate from each other and then be reset under the drive of the reset components (48).

7. A device for secondary shaping of recycled plastic in a car limiter limit box according to claim 6, characterized in that: The inner side of the annular cover (5) is fixedly connected to a pressure table (7) for pressing down the top mold (322). When the lifting plate (41) drives the push plate (47) to move up and just disengages from the push groove (46), the elastic telescopic rod (43) still drives the hanging plate (44) to press down the top mold (322) at the front. When the molding component (32) moves from the front to the left, the top mold (322) moves from the pressure plate (45) to the pressure table (7). When the molding component (32) on the left moves to the position of the three molding components (32) near the back, the top mold (322) disengages from the pressure table (7).

8. The device for secondary shaping of recycled plastic in a car limiter limit box according to claim 3, characterized in that: Two water pipes (36) are fixedly connected to the lower side of several of the shaping bottom molds (321), and the water pipes (36) pass through the base (2) to its lower side. Several annularly distributed sleeves (328) are fixedly connected to the outer side of several of the shaping bottom molds (321), and several annularly distributed inserts (329) are fixedly connected to the outer side of several of the shaping top molds (322). When the shaping bottom mold (321) and the shaping top mold (322) are fastened together, the outer side of the insert (329) is sleeved on the inner side of the sleeve (328). The inner side of the side wall of the shaping bottom mold (321) and the shaping top mold (322) are provided with a channel for communicating with the water pipes (36), and the channel passes through the inserts (329).

9. A device for secondary shaping of recycled plastic in a car limiter limit box according to claim 8, characterized in that: Each of the water pipes (36) is equipped with a valve (37) to control its opening and closing. Each of the valves (37) is rotatably connected to a torsion spring driven adjustment plate (38) on the side close to each other. The lower side of the base (2) is fixedly connected with a guide ring (35) for pressing down the adjustment plate (38). When the water pipe (36) moves to the left side of the annular turntable (31), the adjustment plate (38) is in an unpressurized state, and the water flow inside the water pipe (36) is automatically circulated.

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