Finishing and polishing device for post-treatment of child toy car plastic parts

Abstract

A finishing and polishing device for post-treatment of a plastic part of a toy car for children relates to the technical field of polishing equipment and comprises a square conveying platform, a polishing treatment box is fixedly arranged in the middle of the upper surface of the conveying platform, and a part transferring assembly and a polishing clamping assembly are arranged on the conveying platform. A rough grinding and finishing assembly, a fine grinding and finishing assembly and a dust collection assembly are arranged in the grinding treatment box. The accurate grinding and finishing assembly comprises two vertical rotating wheels which are longitudinally symmetrical, and a flat grinding abrasive belt is arranged between the two vertical rotating wheels in a sleeving manner; a vertical moving sliding groove is formed in the longitudinal inner wall of the polishing treatment box, a vertical moving sliding seat is clamped in the vertical moving sliding groove, a vertical supporting frame is arranged on the end face of the inner side of the vertical moving sliding seat in a telescopic mode, and the vertical rotating wheel is rotationally installed in the vertical supporting frame. The problems that in the prior art, when existing polishing equipment is adopted for polishing and finishing the child toy car plastic part, the manual operation efficiency is low, the machining precision of a complex curved surface is insufficient, and the dust collecting efficiency is low are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding equipment, and particularly to a trimming and grinding device for post-treatment of plastic parts of children's toy cars. Background Art

[0002] Toy cars are toys designed specifically for children, usually having bright colors, rich sounds, and easy-to-operate features to attract children's attention. Toy cars are not only children's play tools, but also through a series of early education play methods, they can train children's various abilities such as spatial thinking, logical thinking, number sense, observation ability, color matching, and hand-eye coordination, enabling them to experience the joy of driving while also exercising their reaction speed and operation skills.

[0003] There are many types of toy cars, including cars, trains, trucks, excavators, remote control cars, etc. For large electric toy cars that can be driven by children, although they are much smaller in size than real cars, they also have basic components such as motors, chassis, batteries, bodies, and electrical control systems. Different from real cars, the components of children's electric toy cars are often small in size and simpler in structure, making them easy to produce and manufacture.

[0004] The processing process of drivable children's toy cars is a complex process involving design, mold manufacturing, component production, assembly, testing, and quality inspection.

[0005] Since the body shells, interiors, wheel hub covers, etc. of children's toy cars are mostly plastic parts, injection molding processing technology is mostly used in the processing process. The parts obtained by injection molding also need to go through a series of post-treatment processes including deburring, trimming gates, spraying, etc. before they can be assembled and installed.

[0006] However, due to the limitations of existing grinding equipment, when grinding and trimming plastic parts of children's toy cars, the following problems often occur: 1. High dependence on manual labor leads to low production efficiency. Specifically, traditional plastic part grinding relies on workers to hold and operate by hand. The processes of clamping, changing the surface, and transporting are cumbersome, the single-piece processing time is long, and it cannot meet the mass production requirements of the toy industry.

[0007] 2. Insufficient grinding accuracy and poor consistency for complex curved surfaces. Specifically, plastic parts of toy cars often contain curved surfaces and edges (such as wheel arches, headlight grooves). It is difficult to control the force and angle during manual grinding, which easily leads to over-grinding or missed grinding in some areas, and the surface roughness is uneven.

[0008] 3. Serious plastic dust pollution and difficult collection. Specifically, plastic grinding generates ultra-fine dust. The positions of the dust suction ports of traditional equipment are fixed, and it is difficult to cover the dynamic grinding area, resulting in a high dust dispersion rate, which endangers the health of workers and pollutes the environment.

[0009] 4. Toy cars are updated quickly and come in many models. It takes time to switch between traditional jigs and grinding tools, and the equipment reuse rate is low.

[0010] In summary, it is obvious that there are inconveniences and defects in the existing technology during actual use, so it is necessary to improve it. Summary of the Invention

[0011] In view of the defects in the existing technology, the present invention provides a trimming and grinding device for post-treatment of plastic parts of children's toy cars, aiming to solve the problems of low manual operation efficiency, insufficient machining accuracy of complex curved surfaces, and low dust collection efficiency when using existing grinding equipment to grind and trim plastic parts of children's toy cars.

[0012] To achieve the above object, the present invention provides the following technical solutions: A trimming and grinding device for post-treatment of plastic parts of children's toy cars, including a square conveying platform. In the middle of the upper surface of the conveying platform, a grinding treatment box is fixedly provided. A part transfer component and a grinding clamping component are respectively arranged on the conveying platform, and a rough grinding and trimming component, a fine grinding and trimming component, and a dust suction component are respectively arranged in the grinding treatment box.

[0013] As an optimized scheme, a horizontally extending conveying slot is opened in the middle of the upper surface of the conveying platform. The part transfer component includes two symmetrically arranged conveying side plates. The lower ends of the conveying side plates are fixedly connected to the inner bottom surface of the conveying slot. A number of equally spaced support rollers are respectively rotatably installed on the inner side walls of each conveying side plate.

[0014] As an optimized scheme, the grinding clamping component includes a transfer clamping seat, and the lower surface of the transfer clamping seat abuts against two rows of the support rollers.

[0015] As an optimized scheme, the rough grinding and trimming component includes a flat grinding wheel, and the flat grinding wheel is rotatably installed on one side of the outer bottom surface of the grinding treatment box. The rough grinding and trimming component further includes two longitudinally symmetric side grinding wheels.

[0016] As an optimized scheme, the fine grinding and trimming component includes two longitudinally symmetric vertical runners, and a flat grinding belt is sleeved between the two vertical runners.

[0017] As an optimized scheme, a vertical moving chute is respectively opened on each longitudinal inner wall of the grinding treatment box. A vertical moving slide seat is respectively clamped and installed in each vertical moving chute. One end of the vertical moving slide seat passes through the vertical moving chute and extends into the grinding treatment box. The other end of the vertical moving slide seat is fixedly connected to an electric telescopic cylinder, and the telescopic end of the electric telescopic cylinder is fixedly connected to a vertical support frame. The vertical runner is rotatably installed in the vertical support frame.

[0018] As an optimized solution, the fine grinding and dressing assembly further includes two horizontally symmetric horizontal runners, and a side abrasive belt is sleeved between the two horizontal runners.

[0019] As an optimized solution, a power supply module is fixedly connected to the middle of the lower surface of the transfer clamping seat. A steering drive motor is fixedly connected to the power supply module. The end of the output shaft of the steering drive motor passes upward through the transfer clamping seat and is fixedly connected to a square steering platform.

[0020] As an optimized solution, four clamping side plates are fixedly connected to the side edge of the upper surface of the square steering platform. A flipping drive motor is fixedly connected to the outer side wall of each clamping side plate. The end of the output shaft of the flipping drive motor passes through the clamping side plate and is fixedly connected to a flipping disc. A horizontal clamping telescopic cylinder is fixedly connected to the center of the outer end face of the flipping disc. The telescopic end of the clamping telescopic cylinder is fixedly connected to a flipping clamping seat, and the flipping clamping seat is a U-shaped seat with a lateral opening.

[0021] As an optimized solution, the part transfer assembly further includes a plurality of lifting transfer frames. The plurality of lifting transfer frames are divided into two longitudinally symmetric rows, and the lifting transfer frames are arranged directly below the grinding treatment box.

[0022] As an optimized solution, a plurality of hydraulic telescopic cylinders are fixedly connected to the inner bottom surface of the conveying trough opening, and the upper telescopic end of each hydraulic telescopic cylinder is fixedly connected to the lower surface of the corresponding lifting transfer frame.

[0023] As an optimized solution, anti-slip pads are fixedly connected to the lower surface of the transfer clamping seat and the upper surface of the lifting transfer frame respectively and face each other up and down.

[0024] As an optimized solution, the dust suction assembly includes two dust collection top covers and two dust collection side covers. Both the dust collection top cover and the dust collection side cover are conical covers. The two dust collection side covers are arranged between the flat abrasive belt and the side abrasive belt. One of the dust collection top covers is arranged directly above the flat abrasive belt, and the other dust collection top cover is arranged directly above the side abrasive belt.

[0025] As an optimized solution, the dust collection top cover is fixedly installed on the inner top surface of the grinding treatment box. The upper end of each dust collection top cover is externally connected to a dust discharge pipe. The dust discharge pipe is fixed on the circumferential inner wall of the grinding treatment box. The lower end of the dust discharge pipe passes through the side wall of the grinding treatment box and extends to the outside thereof. A negative pressure air pump is fixedly connected to the outer wall of the dust discharge pipe near the lower end.

[0026] As an optimized solution, the dust collection side cover is fixedly installed on the longitudinal side wall of the grinding treatment box. At the end of each dust collection side cover, a horizontal extension pipe is fixedly connected respectively. The end of the extension pipe is closed, and the extension pipe is externally connected to a transfer pipe. The end of the transfer pipe is fixedly connected and communicated with the dust discharge pipe.

[0027] As an optimized solution, the two side grinding wheels are respectively telescopically arranged in the two dust collection side covers.

[0028] As an optimized solution, on the closed end face of each extension pipe, a side grinding drive motor is fixedly connected respectively. The end of the output shaft of the side grinding drive motor passes through the side wall of the extension pipe and is fixedly connected with an intermediate turntable. On the outer end face of the intermediate turntable, a side push telescopic cylinder is fixedly connected. The telescopic end of the side push telescopic cylinder is fixedly connected to the back of the side grinding wheel.

[0029] As an optimized solution, on the back of each support roller, a horizontal transmission connection shaft is fixedly connected respectively. The end of the transmission connection shaft passes through the conveying side plate and is fixedly connected with a transmission sprocket. Between adjacent two transmission sprockets, a transmission chain is alternately sleeved.

[0030] As an optimized solution, on the transverse outer wall of the conveying platform, a conveying drive motor is fixedly connected corresponding to each conveying side plate respectively. At the end of the output shaft of each conveying drive motor, an output transmission wheel is fixedly connected respectively. Between the output transmission wheel and the transmission sprocket, the transmission chain is also sleeved.

[0031] As an optimized solution, outside the two conveying drive motors, a closed box cover is provided. The closed box cover is fixedly connected to the transverse side wall of the conveying platform.

[0032] As an optimized solution, on the inner bottom surface of the grinding treatment box, a motor mounting frame is fixedly connected. On the upper surface of the motor mounting frame, a flat grinding drive motor is fixedly connected. The end of the output shaft of the flat grinding drive motor passes downward through the motor mounting frame and is fixedly connected with a lifting telescopic cylinder. The lower telescopic end of the lifting telescopic cylinder passes through the upper wall of the grinding treatment box and is fixedly connected to the center of the upper surface of the flat grinding wheel.

[0033] As an optimized solution, on the outer side wall of the vertical support frame, a rotation drive motor is fixedly connected. The end of the output shaft of the rotation drive motor passes through the vertical support frame and is fixedly connected to the side end face of the vertical runner.

[0034] As an optimized solution, on the side box wall of the grinding treatment box corresponding to the vertical movement chutes, two vertical movement drive motors are fixedly connected respectively. At the end of the output shaft of each vertical movement drive motor, a vertical screw rod is fixedly connected respectively. The lower end of the vertical screw rod passes through and is threadedly connected to the vertical movement slide block.

[0035] As an optimized solution, transverse sliding grooves are respectively formed in each longitudinal inner wall of the grinding treatment box, and transverse sliding seats are respectively clamped and installed in each of the transverse sliding grooves. One end of the transverse sliding seat passes through the transverse sliding groove and extends to the outside thereof. The other end of the transverse sliding seat is also fixedly connected with the electric telescopic cylinder. The telescopic end of the electric telescopic cylinder is fixedly connected with a horizontal support frame. The horizontal rotating wheel is rotatably installed in the horizontal support frame. The upper surface of the horizontal support frame is also fixedly connected with the rotation driving motor. The end of the output shaft of the rotation driving motor passes through the horizontal support frame and is fixedly connected to the side end face of the horizontal rotating wheel.

[0036] As an optimized solution, two transverse driving motors are respectively fixedly connected to the side box wall of the grinding treatment box corresponding to the transverse sliding grooves. The end of the output shaft of each transverse driving motor is respectively fixedly connected with a transverse screw rod. The end of the transverse screw rod passes through and is threadedly connected to the transverse sliding seat.

[0037] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. High degree of automation and integration, improving production efficiency.

[0038] Specifically manifested as: The automatic conveying, lifting and station switching of plastic parts are realized by the part transfer assembly (conveying driving motor, supporting rollers, transmission chain) and the lifting transfer frame (controlled by hydraulic telescopic cylinders) of the device, without manual handling. The design of the conveying slot and the supporting rollers ensures the smooth movement of the transfer clamping seat. With the synchronous control of the two conveying driving motors, the risk of jamming is reduced; The automatic clamping (flipping driving motor, clamping telescopic cylinder, flipping clamp seat) and rotating (steering driving motor, square steering platform) functions of the grinding clamping assembly allow for quick adaptation to plastic parts of different shapes (such as toy wheels, car bodies, etc.), reducing the clamping time; The rough grinding and fine grinding components are automatically switched (such as from a flat grinding wheel to a flat grinding belt), and are seamlessly connected through the transfer system. The entire process (rough grinding → fine grinding → side grinding → dust removal) is carried out continuously, significantly shortening the single-piece processing time. Compared with traditional manual grinding, the production efficiency is increased by more than 30%, which is suitable for mass production.

[0039] 2. Multi-degree-of-freedom grinding ability, improving machining accuracy and adaptability.

[0040] Specifically manifested as: The rough grinding and trimming assembly (flat grinding wheel and side grinding wheel) is responsible for removing large amounts of surplus. The pressure of the grinding wheel is controlled by the lifting telescopic cylinder and the flat grinding driving motor to avoid over-grinding or deformation of the plastic parts; The fine grinding and dressing assembly (flat abrasive belt and side abrasive belt) adopts an adjustable abrasive belt system, which works together with the vertical movement chute / horizontal movement chute, vertical movement drive motor / horizontal movement drive motor, electric telescopic cylinder and rotation drive motor to dynamically adjust the position, angle and tension of the abrasive belt. Specifically, the vertical and horizontal movement drive motors can finely adjust the height and horizontal position of the abrasive belt to adapt to the curved surface or edges of plastic parts; the electric telescopic cylinder controls the tension of the abrasive belt to ensure uniform grinding; Combined with the steering function of the grinding clamping assembly (the steering drive motor rotates the square turntable), plastic parts can be multi-sided ground (such as the upper end face and side end face) in one clamping, reducing the repeated positioning error and improving the dimensional accuracy (the tolerance can be controlled within ±0.1 mm), which is especially suitable for toy parts with complex shapes.

[0041] 3. High-efficiency dust removal and environmental protection to improve the working environment.

[0042] Specifically, the dust collection component (dust collection top cover, dust collection side cover, negative pressure air pump, dust discharge pipe) is directly integrated in the grinding area: the dust collection top cover is located directly above the abrasive belt / grinding wheel, and the dust collection side cover is located in the side grinding area, and the waste chips are extracted in real time through the negative pressure air pump; High dust removal efficiency: The waste chips are collected through the extension pipe and transfer pipe and discharged through the dust discharge pipe. The conical cover and enclosed extension pipe in the design enhance the negative pressure effect; the lifting transfer rack can adjust the distance between the plastic part and the dust collection cover to optimize the dust collection efficiency (the dust collection rate can reach more than 95%); Reduce plastic dust pollution, avoid the inhalation hazard of workers, meet the safety standards of children's toys, and at the same time prevent the secondary adhesion of waste chips and improve the product cleanliness.

[0043] 4. Quality control and consistency improvement.

[0044] Specifically, staged grinding (rough grinding → fine grinding) ensures the surface quality: rough grinding quickly removes burrs, and the fine grinding abrasive belt provides a delicate surface, reducing the subsequent polishing requirements; The anti-slip pad design (on the transfer clamping seat and the lifting transfer rack) prevents the displacement of plastic parts and ensures the grinding positioning accuracy. Brief Description of the Drawings

[0045] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0046] Figure 1 It is a schematic cross-sectional view of the internal structure of each component in the present invention in the top view direction; Figure 2Internal structure schematic diagram of each component in the present invention in the front view direction; Figure 3 Internal structure sectional view of the rough grinding and dressing component in the side view direction of the present invention; Figure 4 Internal structure sectional view of the fine grinding and dressing component in the side view direction of the present invention; Figure 5 Half-sectional view of the internal structure of the grinding treatment box in the front view direction of the present invention; Figure 6 External overall schematic diagram of the present invention in the top view direction.

[0047] In the figure: 1 - conveying platform, 2 - grinding treatment box, 3 - conveying slot, 4 - conveying side plate, 5 - support roller, 6 - transmission connecting shaft, 7 - transmission sprocket, 8 - transmission chain, 9 - conveying drive motor, 10 - output transmission wheel, 11 - closed box cover, 12 - transfer clamping seat, 13 - power supply module, 14 - steering drive motor, 15 - square steering platform, 16 - clamping side plate, 17 - flipping drive motor, 18 - flipping disc, 19 - clamping telescopic cylinder, 20 - flipping clamp seat, 21 - lifting transfer frame, 22 - hydraulic telescopic cylinder, 23 - flat grinding wheel, 24 - motor mounting frame, 25 - flat grinding drive motor, 26 - lifting telescopic cylinder, 27 - vertical runner, 28 - flat grinding abrasive belt, 29 - vertical moving chute, 30 - vertical moving slide, 31 - electric telescopic cylinder, 32 - vertical support frame, 33 - rotation drive motor, 34 - vertical moving drive motor, 35 - vertical screw rod, 36 - horizontal runner, 37 - side grinding abrasive belt, 38 - horizontal moving chute, 39 - horizontal moving slide, 40 - horizontal support frame, 41 - horizontal moving drive motor, 42 - horizontal screw rod, 43 - dust collection top cover, 44 - dust collection side cover, 45 - dust discharge pipe, 46 - negative pressure air pump, 47 - extension pipe, 48 - transfer pipe, 49 - side grinding wheel, 50 - side grinding drive motor, 51 - intermediate turntable, 52 - side pushing telescopic cylinder. Detailed implementation manners

[0048] The embodiments of the technical solutions of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solutions of the present invention more clearly, so they are only examples and cannot be used to limit the protection scope of the present invention.

[0049] As Figures 1 to 6As shown in the figure, a trimming and grinding device for post-treatment of plastic parts of children's toy cars includes a conveying platform 1. The conveying platform 1 is a horizontally extending square platform. In the middle of the upper surface of the conveying platform 1, a grinding treatment box 2 is fixedly installed. The grinding treatment box 2 is a three-section special-shaped box with a concave middle section on the lower surface. A part transfer assembly and a grinding clamping assembly are respectively arranged on the conveying platform 1, and a rough grinding and trimming assembly, a fine grinding and trimming assembly, and a dust suction assembly are respectively arranged in the grinding treatment box 2.

[0050] A horizontally extending conveying slot 3 is opened in the middle of the upper surface of the conveying platform 1. The part transfer assembly includes two symmetrically arranged conveying side plates 4. The lower ends of the conveying side plates 4 are fixedly connected to the inner bottom surface of the conveying slot 3. A plurality of support rollers 5 are respectively rotatably installed on the inner side walls of each conveying side plate 4, and the plurality of support rollers 5 are arranged at equal intervals.

[0051] A horizontal transmission connection shaft 6 is fixedly connected to the back of each support roller 5. The end of the transmission connection shaft 6 passes through the conveying side plate 4 and is fixedly connected to a transmission sprocket 7. Transmission chains 8 are alternately sleeved between adjacent two transmission sprockets 7.

[0052] Conveying drive motors 9 are respectively fixedly connected to the horizontal outer walls of the conveying platform 1 corresponding to each conveying side plate 4. The end of the output shaft of each conveying drive motor 9 is fixedly connected to an output transmission wheel 10, and a transmission chain 8 is also sleeved between the output transmission wheel 10 and the transmission sprocket 7.

[0053] A closed box cover 11 is arranged outside the two conveying drive motors 9, and the closed box cover 11 is fixedly connected to the horizontal side wall of the conveying platform 1.

[0054] The grinding clamping assembly includes a transfer clamping seat 12. The transfer clamping seat 12 is a horizontally arranged square seat, and the lower surface of the transfer clamping seat 12 abuts against two rows of support rollers 5.

[0055] A power supply module 13 is fixedly connected to the middle of the lower surface of the transfer clamping seat 12. A steering drive motor 14 is fixedly connected to the power supply module 13. The end of the output shaft of the steering drive motor 14 passes upward through the transfer clamping seat 12 and is fixedly connected to a square steering platform 15. Four clamping side plates 16 are fixedly connected to the side edge of the upper surface of the square steering platform 15. A flipping drive motor 17 is respectively fixedly connected to the outer side wall of each clamping side plate 16. The end of the output shaft of the flipping drive motor 17 passes through the clamping side plate 16 and is fixedly connected to a flipping disc 18. A horizontal clamping telescopic cylinder 19 is fixedly connected to the center of the outer end face of the flipping disc 18. The telescopic end of the clamping telescopic cylinder 19 is fixedly connected to a flipping clamp seat 20, and the flipping clamp seat 20 is a U-shaped seat with a lateral opening.

[0056] The part transfer assembly further includes a plurality of lifting transfer frames 21. The plurality of lifting transfer frames 21 are divided into two longitudinally symmetric rows, and the lifting transfer frames 21 are arranged directly below the grinding treatment box 2.

[0057] A plurality of hydraulic telescopic cylinders 22 are fixedly connected to the inner bottom surface of the conveying trough opening 3, and the upper telescopic ends of each hydraulic telescopic cylinder 22 are fixedly connected to the lower surface of the corresponding lifting transfer frame 21.

[0058] Anti-slip pads are fixedly connected to the lower surface of the transfer clamping seat 12 and the upper surface of the lifting transfer frame 21 respectively, which are opposite to each other up and down.

[0059] The rough grinding and trimming assembly includes a surface grinding wheel 23, which is rotatably installed on one side of the outer bottom surface of the grinding treatment box 2. A motor mounting frame 24 is fixedly connected to the inner bottom surface of the grinding treatment box 2. A surface grinding drive motor 25 is fixedly connected to the upper surface of the motor mounting frame 24. The end of the output shaft of the surface grinding drive motor 25 passes downward through the motor mounting frame 24 and is fixedly connected to a lifting telescopic cylinder 26. The lower telescopic end of the lifting telescopic cylinder 26 passes through the upper wall of the grinding treatment box 2 and is fixedly connected to the center of the upper surface of the surface grinding wheel 23.

[0060] The fine grinding and trimming assembly includes two vertically symmetric vertical runners 27, and a surface grinding belt 28 is sleeved between the two vertical runners 27.

[0061] Vertical shifting chutes 29 are respectively formed on each longitudinal inner wall of the grinding treatment box 2. A vertical shifting slide seat 30 is respectively clamped and installed in each vertical shifting chute 29. One end of the vertical shifting slide seat 30 passes through the vertical shifting chute 29 and extends to the outside thereof. The other end of the vertical shifting slide seat 30 is fixedly connected to an electric telescopic cylinder 31. The telescopic end of the electric telescopic cylinder 31 is fixedly connected to a vertical support frame 32. The vertical runner 27 is rotatably installed in the vertical support frame 32. A rotation drive motor 33 is fixedly connected to the outer side wall of the vertical support frame 32. The end of the output shaft of the rotation drive motor 33 passes through the vertical support frame 32 and is fixedly connected to the side end face of the vertical runner 27.

[0062] Two vertical shifting drive motors 34 are respectively fixedly connected to the side box wall of the grinding treatment box 2 corresponding to the vertical shifting chutes 29. The end of the output shaft of each vertical shifting drive motor 34 is respectively fixedly connected to a vertical screw rod 35. The lower end of the vertical screw rod 35 passes through and is threadedly connected to the vertical shifting slide seat 30.

[0063] The fine grinding and trimming assembly further includes two horizontally symmetric horizontal runners 36, and a side grinding belt 37 is sleeved between the two horizontal runners 36.

[0064] On each longitudinal inner wall of the grinding treatment box 2, a transverse sliding groove 38 is respectively provided. A transverse sliding seat 39 is respectively clamped and installed in each transverse sliding groove 38. One end of the transverse sliding seat 39 passes through the transverse sliding groove 38 and extends to its outside. An electric telescopic cylinder 31 is also fixedly connected to the other end of the transverse sliding seat 39. The telescopic end of the electric telescopic cylinder 31 is fixedly connected to a horizontal support frame 40. A horizontal runner 36 is rotatably installed in the horizontal support frame 40. A rotation driving motor 33 is also fixedly connected to the upper surface of the horizontal support frame 40. The end of the output shaft of the rotation driving motor 33 passes through the horizontal support frame 40 and is fixedly connected to the side end face of the horizontal runner 36.

[0065] On the side box wall of the grinding treatment box 2, two transverse driving motors 41 are respectively fixedly connected corresponding to the transverse sliding grooves 38. The end of the output shaft of each transverse driving motor 41 is respectively fixedly connected with a transverse screw rod 42. The end of the transverse screw rod 42 passes through and is threadedly connected to the transverse sliding seat 39.

[0066] The dust suction assembly includes two dust collection top covers 43 and two dust collection side covers 44. The dust collection top covers 43 and the dust collection side covers 44 are both conical covers. The two dust collection side covers 44 are arranged between the flat grinding belt 28 and the side grinding belt 37. One of the dust collection top covers 43 is arranged directly above the flat grinding belt 28, and the other dust collection top covers 43 is arranged directly above the side grinding belt 37.

[0067] The dust collection top cover 43 is fixedly installed on the inner top surface of the grinding treatment box 2. The upper end of each dust collection top cover 43 is respectively externally connected with a dust discharge pipe 45. The dust discharge pipe 45 is fixed on the circumferential inner wall of the grinding treatment box 2. The lower end of the dust discharge pipe 45 passes through the side wall of the grinding treatment box 2 and extends to its outside. A negative pressure air pump 46 is fixedly connected to the outer wall of the dust discharge pipe 45 near the lower end.

[0068] The dust collection side cover 44 is fixedly installed on the longitudinal side wall of the grinding treatment box 2. A horizontal extension pipe 47 is respectively fixedly connected to the end of each dust collection side cover 44. The end of the extension pipe 47 is closed. The extension pipe 47 is externally connected with a transfer pipe 48. The end of the transfer pipe 48 is fixedly connected and communicated to the dust discharge pipe 45.

[0069] The rough grinding and trimming assembly further includes two longitudinally symmetric side grinding wheels 49. The two side grinding wheels 49 are respectively telescopically arranged in the two dust collection side covers 44.

[0070] On the closed end face of each extension pipe 47, a side grinding driving motor 50 is respectively fixedly connected. The end of the output shaft of the side grinding driving motor 50 passes through the side wall of the extension pipe 47 and is fixedly connected with an intermediate turntable 51. A side push telescopic cylinder 52 is fixedly connected to the outer end face of the intermediate turntable 51. The telescopic end of the side push telescopic cylinder 52 is fixedly connected to the center of the back of the side grinding wheel 49.

[0071] When the present invention is used: first, place the plastic parts of the children's toy car to be polished on the square turning table 15, start the flip drive motor 17, control the extension and contraction of the clamping telescopic cylinder 19, adjust the clamping position and state of each flip clamp seat 20 to adapt to the clamping positioning of plastic parts of different shapes; start two conveying drive motors 9 respectively, the conveying drive motor 9 drives the output transmission wheel 10 to rotate, and drives each transmission sprocket 7 to rotate through the transmission of each transmission chain 8, and then the transmission connecting shaft 6 transmits the torque to the supporting roller 5, the supporting roller 5 rotates, and drives the transfer clamp seat 12 to move horizontally to the bottom of the flat grinding wheel 23, and then shut down the conveying drive motor 9; control the extension of the hydraulic telescopic cylinder 22, drive the lifting transfer frame 21 to move up, and move the transfer clamp seat 12 as a whole Lift it upward to separate it from the supporting roller 5; at the same time, control the elevating and telescopic cylinder 26 to extend, start the flat grinding drive motor 25, drive the flat grinding wheel 23 to rotate, and perform flat grinding rough processing on the upper end surface of the plastic part of the children's toy car; then control the hydraulic telescopic cylinder 22 to shorten, drive the elevating and transferring frame 21 to descend, transfer the transfer clamping seat 12 to the supporting roller 5 again, and then transfer the transfer clamping seat 12 to the bottom of the flat grinding belt 28 by controlling the rotation of the supporting roller 5; start the negative pressure air pump 46, first draw the waste chips generated by the flat grinding rough processing into the dust collecting top cover 43, and then discharge them through the dust exhaust pipe 45. During the dust collection process, the distance between the dust collecting top cover 43 and the plastic part can be reduced by driving the elevating and transferring frame 21 to rise, thereby enhancing the dust collection effect; start the vertical shift drive motor 34, and the vertical shift drive motor 34 will be driven to rotate. The driving motor 34 drives the vertical screw 35 to rotate, drives the vertical sliding seat 30 to move along the vertical sliding groove 29, and adjusts the grinding position of the flat grinding belt 28; starts the rotating driving motor 33, and the rotating driving motor 33 drives the vertical rotating wheel 27 to rotate, drives the flat grinding belt 28 to roll in a circular manner, and performs flat grinding and finishing on the upper end surface of the plastic part; further, by respectively starting the vertical driving motor 34, the two vertical sliding seats 30 are controlled to slide to different positions, and at the same time, the flat grinding belt 28 is controlled to adapt to the tension by controlling the electric telescopic cylinder 31 to extend and retract, thereby realizing multi-angle flat grinding of different positions of the plastic part, and the waste chips generated during the flat grinding and finishing process are also sucked into the dust collecting top cover 43 for collection; again, through the rotation drive of the supporting roller 5 and the lifting and lowering coordination of the lifting and lowering transfer frame 21, The transfer clamping seat 12 is transferred between the two dust collecting side covers 44; the two side grinding drive motors 50 are respectively started, and the side grinding drive motors 50 drive the side grinding wheel 49 to rotate, and at the same time control the side push telescopic cylinder 52 to extend, so as to drive the side grinding wheel 49 to approach the side end surface of the plastic part for side grinding rough processing; at the same time, the two negative pressure air pumps 46 are respectively started, and the waste chips generated by the side grinding rough processing are sucked into the dust collecting side cover 44, and then discharged through the extension pipe 47, the transfer pipe 48 and the dust exhaust pipe 45 in sequence; after the side grinding rough processing is completed, the plastic part is transferred to the bottom of the side grinding belt 37 by the transfer clamping seat 12; the other two rotating drive motors 33 are started, and the rotating drive motor 33 drives the horizontal rotating wheel 36 to rotate, and drives the side grinding belt 37 to roll in a cycle, so as to perform side grinding fine processing of the plastic part;Similarly, by starting the transverse movement drive motor 41 to drive the transverse screw 42 to rotate, the two transverse movement sliders 39 can be respectively driven to move along the transverse movement chute 38, thereby changing the side grinding angle; after the side grinding finish machining, the waste chips are adsorbed and collected by the dust collection top cover 43 above the side grinding abrasive belt 37; during the rough grinding and finish grinding processes, by starting the steering drive motor 14, the steering drive motor 14 drives the square steering platform 15 to rotate, and the grinding position of the plastic part can be switched; after the trimming and grinding are completed, the plastic part is horizontally transported out by using the part transfer assembly.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the specification of the present invention.

Claims

1. A trimming and grinding device for post-treatment of plastic parts of children's toy cars, characterized in that: It includes a square conveying platform, in the middle of the upper surface of the conveying platform, a grinding treatment box is fixedly arranged. On the conveying platform, a part transfer assembly and a grinding clamping assembly are respectively arranged. Inside the grinding treatment box, a rough grinding and trimming assembly, a fine grinding and trimming assembly and a dust suction assembly are respectively arranged; In the middle of the upper surface of the conveying platform, a laterally extending conveying notch is opened. The part transfer assembly includes two symmetrically arranged conveying side plates. The lower ends of the conveying side plates are fixedly connected to the inner bottom surface of the conveying notch. On the inner side wall of each conveying side plate, a number of equally spaced supporting rollers are respectively rotatably installed; The grinding clamping assembly includes a transfer clamping seat, and the lower surface of the transfer clamping seat abuts against two rows of the supporting rollers; The rough grinding and trimming assembly includes a surface grinding wheel, and the surface grinding wheel is rotatably installed on one side of the outer bottom surface of the grinding treatment box. The rough grinding and trimming assembly also includes two longitudinally symmetric side grinding wheels; The fine grinding and trimming assembly includes two longitudinally symmetric vertical runners, and a surface grinding belt is sleeved between the two vertical runners; On each longitudinal inner wall of the grinding treatment box, a vertical moving chute is respectively opened. In each vertical moving chute, a vertical moving slide seat is respectively clamped and installed. One end of the vertical moving slide seat passes through the vertical moving chute and extends into the grinding treatment box. The other end of the vertical moving slide seat is fixedly connected to an electric telescopic cylinder. The telescopic end of the electric telescopic cylinder is fixedly connected to a vertical support frame, and the vertical runner is rotatably installed in the vertical support frame; The fine grinding and trimming assembly also includes two longitudinally symmetric horizontal runners, and a side grinding belt is sleeved between the two horizontal runners.

2. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 1, characterized in that: In the middle of the lower surface of the transfer clamping seat, a power supply module is fixedly connected. On the power supply module, a steering drive motor is fixedly connected. The end of the output shaft of the steering drive motor passes upward through the transfer clamping seat and is fixedly connected to a square steering platform; On the side edge of the upper surface of the square steering platform, four clamping side plates are fixedly connected. On the outer side wall of each clamping side plate, a flipping drive motor is fixedly connected. The end of the output shaft of the flipping drive motor passes through the clamping side plate and is fixedly connected to a flipping disc. At the center of the outer end face of the flipping disc, a horizontal clamping telescopic cylinder is fixedly connected. The telescopic end of the clamping telescopic cylinder is fixedly connected to a flipping clamping seat, and the flipping clamping seat is a U-shaped seat with a lateral opening.

3. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 1, characterized in that: The part transfer assembly also includes a number of lifting transfer frames. The number of lifting transfer frames is divided into two longitudinally symmetric rows, and the lifting transfer frames are arranged directly below the grinding treatment box; On the inner bottom surface of the conveying notch, a number of hydraulic telescopic cylinders are fixedly connected. The upper telescopic end of each hydraulic telescopic cylinder is fixedly connected to the lower surface of the corresponding lifting transfer frame; On the lower surface of the transfer clamping seat and the upper surface of the lifting transfer frame, anti-slip pads are respectively fixedly connected which face each other up and down.

4. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 1, wherein: The dust suction assembly includes two dust collection top covers and two dust collection side covers. The dust collection top covers and the dust collection side covers are both conical covers. The two dust collection side covers are arranged between the surface grinding belt and the side grinding belt. One of the dust collection top covers is arranged directly above the surface grinding belt, and the other dust collection top cover is arranged directly above the side grinding belt; The dust collection top cover is fixedly installed on the inner top surface of the grinding treatment box. The upper ends of each dust collection top cover are respectively externally connected to a dust exhaust pipe. The dust exhaust pipe is fixed on the circumferential inner wall of the grinding treatment box. The lower end of the dust exhaust pipe passes through the side wall of the grinding treatment box and extends to the outside thereof. A negative pressure air pump is fixedly connected to the outer wall of the dust exhaust pipe near the lower end. The dust collection side cover is fixedly installed on the longitudinal side wall of the grinding treatment box. The ends of each dust collection side cover are respectively fixedly connected to a horizontal extension pipe. The end of the extension pipe is closed. The extension pipe is externally connected to a transfer pipe. The end of the transfer pipe is fixedly connected and communicated with the dust exhaust pipe. The two side grinding wheels are respectively telescopically arranged in the two dust collection side covers.

5. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 4, wherein: A side grinding drive motor is fixedly connected to the closed end surface of each extension pipe. The end of the output shaft of the side grinding drive motor passes through the side wall of the extension pipe and is fixedly connected with an intermediate turntable. A side push telescopic cylinder is fixedly connected to the outer end surface of the intermediate turntable. The telescopic end of the side push telescopic cylinder is fixedly connected to the back surface of the side grinding wheel.

6. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 1, characterized in that: A horizontal transmission connection shaft is fixedly connected to the back surface of each support roller. The end of the transmission connection shaft passes through the conveying side plate and is fixedly connected with a transmission sprocket. A transmission chain is alternately sleeved between adjacent two transmission sprockets. A conveying drive motor is fixedly connected to the lateral outer wall of the conveying platform corresponding to each conveying side plate. The end of the output shaft of each conveying drive motor is respectively fixedly connected with an output transmission wheel. The output transmission wheel and the transmission sprocket are also sleeved with the transmission chain. There is a closed box cover outside the two conveying drive motors. The closed box cover is fixedly connected to the lateral side wall of the conveying platform.

7. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 1, characterized in that: A motor mounting frame is fixedly connected to the inner bottom surface of the grinding treatment box. A flat grinding drive motor is fixedly connected to the upper surface of the motor mounting frame. The end of the output shaft of the flat grinding drive motor passes downward through the motor mounting frame and is fixedly connected with a lifting telescopic cylinder. The lower telescopic end of the lifting telescopic cylinder passes through the upper wall of the grinding treatment box and is fixedly connected to the center of the upper surface of the flat grinding wheel.

8. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 1, characterized in that: A rotation drive motor is fixedly connected to the outer side wall of the vertical support frame. The end of the output shaft of the rotation drive motor passes through the vertical support frame and is fixedly connected to the side end surface of the vertical runner. Two vertical movement drive motors are fixedly connected to the side box wall of the grinding treatment box corresponding to the vertical movement chutes respectively. The end of the output shaft of each vertical movement drive motor is respectively fixedly connected with a vertical screw rod. The lower end of the vertical screw rod passes through and is threadedly connected to the vertical movement slide seat.

9. The trimming and grinding device for post-treatment of plastic parts of children's toy cars according to claim 8, characterized in that: A horizontal movement chute is respectively opened on each longitudinal inner wall of the grinding treatment box. A horizontal movement slide seat is respectively clamped and installed in each horizontal movement chute. One end of the horizontal movement slide seat passes through the horizontal movement chute and extends to the outside thereof. The other end of the horizontal movement slide seat is also fixedly connected with the electric telescopic cylinder. The telescopic end of the electric telescopic cylinder is fixedly connected with a horizontal support frame. The horizontal runner is rotatably installed in the horizontal support frame. A rotation drive motor is also fixedly connected to the upper surface of the horizontal support frame. The end of the output shaft of the rotation drive motor passes through the horizontal support frame and is fixedly connected to the side end surface of the horizontal runner. On the side box walls of the grinding treatment box, two transverse movement driving motors are fixedly connected corresponding to the transverse movement sliding grooves respectively. At the ends of the output shafts of each of the transverse movement driving motors, transverse screws are fixedly connected respectively. The ends of the transverse screws pass through and are threadedly connected to the transverse movement sliding seats.

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