A plastic parts assembly equipment
By introducing an anti-deviation mechanism into the plastic parts assembly equipment, and using a two-way lead screw and a smooth frame to guide and limit the plastic parts, the problem of plastic parts deviation caused by the vibratory feeder is solved, and precise assembly is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DIANXI PRECISION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-06-30
Smart Images

Figure CN224429144U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic parts assembly technology, and specifically to a plastic parts assembly equipment. Background Technology
[0002] Plastic parts assembly equipment is a type of machinery used to combine and connect different plastic parts into complete products. It is widely used in many industries such as electronics, automobiles, toys, and home appliances.
[0003] In the assembly of existing automotive toy plastic parts, a vibratory feeder is usually used to feed the plastic parts onto a conveyor belt in an orderly manner, so that the conveyor belt can automatically feed the plastic parts to the assembly equipment for assembly operations.
[0004] Because plastic parts for car toys are usually lightweight, the vibration force generated by the vibratory feeder during operation can easily be transmitted to the conveyor belt, which can cause the plastic parts being conveyed on the conveyor belt to deviate, thus affecting the accurate assembly of the plastic parts.
[0005] Based on this, the present invention designs a plastic parts assembly equipment to solve the above problems. Utility Model Content
[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a plastic parts assembly equipment.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A plastic parts assembly device includes a conveyor and an anti-deviation mechanism. The anti-deviation mechanism includes an adjustment frame fixedly connected to the bottom of the conveyor. A bidirectional lead screw is rotatably connected to the inner wall of the adjustment frame. Two smooth frames are slidably connected to the inner wall of the adjustment frame. A guide block is hinged to one side of each smooth frame.
[0009] Furthermore, a positioning rod is slidably connected to the inner wall of the bidirectional lead screw, and the surface of the positioning rod is engaged with the inner wall of the control frame.
[0010] Furthermore, the inner wall of the bidirectional lead screw is slidably connected to a slide rod, and the surface of the slide rod is engaged with the inner wall of the positioning rod.
[0011] Furthermore, a limiting disk is fixedly connected to the top of the guide block.
[0012] Furthermore, a limiting rod is slidably connected to the inner wall of the limiting plate, and the surface of the limiting rod is engaged with the inner wall of the smooth frame.
[0013] Furthermore, corrugated sleeves are fixedly connected to both the front and rear ends of the smooth frame, and one end of the corrugated sleeve is fixedly connected to the inner wall of the control frame.
[0014] Furthermore, the surface of the bidirectional lead screw is fixedly connected with two interceptors.
[0015] Furthermore, a nylon rope is fixedly connected to the surface of the limiting rod, and the other end of the nylon rope is fixedly connected to the top of the smooth frame.
[0016] Compared with the prior art, the advantages of this utility model are as follows:
[0017] 1. By adjusting the distance between the two smooth frames through the bidirectional lead screw, the two smooth frames guide and limit the plastic parts moving on the conveyor, thereby preventing the plastic parts from deviating during movement on the conveyor and ensuring the precise assembly of the plastic parts. The guide block precisely guides the plastic parts moving on the conveyor to the distance between the two smooth frames, thereby ensuring the limiting effect of the moving plastic parts.
[0018] 2. The positioning rod moves within the bidirectional lead screw and locks into the control frame, thereby locking the bidirectional lead screw. The sliding rod moves down within the bidirectional lead screw and locks into the positioning rod, thereby positioning the positioning rod. This ensures the stable locking of the bidirectional lead screw and guarantees the guiding and limiting effect of the smooth frame on the plastic parts. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional view of a plastic parts assembly equipment according to the present invention;
[0021] Figure 2 This is a cross-sectional view of the control frame of a plastic parts assembly equipment according to the present invention;
[0022] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0023] Figure 4 for Figure 2 Enlarged view of point B in the middle;
[0024] Figure 5 This is a perspective view of the anti-deviation mechanism of a plastic parts assembly equipment according to the present invention.
[0025] The labels in the diagram represent:
[0026] 100. Conveyor; 200. Anti-deviation mechanism; 201. Control frame; 202. Bidirectional lead screw; 203. Smooth frame; 204. Guide block; 205. Positioning rod; 206. Slide rod; 207. Limiting plate; 208. Limiting rod; 209. Nylon rope; 210. Interception frame; 211. Corrugated sleeve. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.
[0029] In some embodiments, please refer to the accompanying drawings. Figures 1-5 A plastic parts assembly device includes a conveyor 100 and an anti-deviation mechanism 200. The anti-deviation mechanism 200 includes an adjustment frame 201 fixedly connected to the bottom of the conveyor 100. A bidirectional lead screw 202 is rotatably connected to the inner wall of the adjustment frame 201. Two smooth frames 203 are slidably connected to the inner wall of the adjustment frame 201. A guide block 204 is hinged to one side of the smooth frame 203.
[0030] Both the smoothing frame 203 and the guide block 204 are polyurethane components, giving their surfaces excellent smoothness and a low coefficient of friction, significantly reducing friction with the plastic parts. They also possess good flexibility and elasticity, cushioning the impact forces on the plastic parts during transport and protecting them from damage.
[0031] It should be noted that plastic parts assembly equipment typically consists of a vibratory feeder, a conveyor 100, an assembly actuator, a positioning mechanism, a PLC touch screen, a testing mechanism, and a unloading mechanism.
[0032] Vibratory feeder: Used to arrange disordered plastic parts in an orderly manner and transport them one by one to a designated position. It moves the plastic parts on a spiral track through vibration, and uses different screening mechanisms to adjust the plastic parts into the correct posture for subsequent assembly operations.
[0033] Assembly actuator
[0034] Press-fitting assembly: Used to press and assemble plastic parts, such as pressing a wheel onto an axle. Press-fitting mechanisms are typically driven by cylinders, hydraulic cylinders, or electric push rods, and by controlling pressure and stroke, ensure that the plastic parts are tightly assembled together.
[0035] Snap-fit components: Enable the snap-fit assembly of plastic parts, such as snap-fitting the body shell to the chassis. Snap-fit mechanisms use claws or clips to quickly and accurately engage plastic parts together.
[0036] Rotary assembly components: For plastic parts that require rotational assembly, such as the installation of a steering wheel, the rotary assembly mechanism can precisely control the rotation angle and torque to ensure assembly accuracy.
[0037] Positioning mechanism
[0038] Positioning fixtures: Used to fix the position of plastic parts and ensure assembly accuracy. Positioning fixtures are usually designed according to the shape and size of the plastic parts, and can accurately position the plastic parts in the assembly station to prevent them from moving during the assembly process.
[0039] Sensors: Optical sensors, proximity sensors, and other similar devices detect the position and orientation of plastic parts, providing feedback to the assembly actuators to ensure assembly accuracy. For example, sensors can detect whether the plastic part is in place and whether there is any offset or tilt.
[0040] Testing agency
[0041] Visual inspection component: Utilizing cameras and image processing technology, this component performs visual inspection on assembled toy cars, checking for proper assembly of plastic parts and surface defects. The visual inspection system can quickly and accurately detect and remove defective products.
[0042] Functional testing components: These components test the functionality of toy cars, such as the flexibility of wheel rotation and the on / off state of lights. The functional testing equipment can simulate real-world usage scenarios for toy cars, ensuring that the product's quality and performance meet requirements.
[0043] In this embodiment of the utility model, during the assembly of plastic parts for car toys, the PLC touch screen is used to debug the assembly equipment, including the speed and stability of the feeding system, the accuracy of the positioning system, and the parameters of the assembly execution system, so that the equipment can reach the optimal operating state and ensure the smooth progress of the assembly process.
[0044] Rotate the bidirectional lead screw 202. The rotation of the bidirectional lead screw 202 drives the two smooth frames 203 to move closer to each other at a suitable distance. Stop rotating the bidirectional lead screw 202 and rotate the tilt angle of the guide block 204 so that the surface of the guide block 204 abuts against the discharge port of the vibratory feeder.
[0045] The vibratory feeder arranges the plastic parts in an orderly manner and transports them to the surface of the conveyor belt on the conveyor 100. Two smooth frames 203 limit the plastic parts transported on the conveyor belt, so that the plastic parts are accurately transported to the assembly area.
[0046] Once the plastic parts arrive at the assembly station, the positioning system precisely positions them to ensure they are in the correct assembly position and orientation. Using mechanical positioning devices, vision positioning components, or sensor positioning, the system controls the positional error of the plastic parts within acceptable limits, thus completing the snap-fit assembly. The assembled plastic parts are then visually inspected using vision inspection components to check for defects such as surface scratches, cracks, and missing materials. If any visual defects are found, the system will reject or mark the defective product.
[0047] For plastic parts that pass inspection, they are conveyed to the next process or storage area via the unloading mechanism. For defective products, they are handled separately, such as being reworked or scrapped.
[0048] In this embodiment of the invention, the distance between the two smooth frames 203 is adjusted by the bidirectional lead screw 202, thereby guiding and limiting the plastic parts moving on the conveyor 100 by the two smooth frames 203, thus preventing the plastic parts from shifting during movement on the conveyor 100, and ensuring the precise assembly of the plastic parts. The guide block 204 precisely guides the plastic parts moving on the conveyor 100 to the distance between the two smooth frames 203, thereby ensuring the limiting effect on the moving plastic parts.
[0049] In some embodiments, such as Figure 3 As shown, in a preferred embodiment of the present invention, a positioning rod 205 is slidably connected to the inner wall of the bidirectional lead screw 202, and the surface of the positioning rod 205 is engaged with the inner wall of the control frame 201. A slide rod 206 is slidably connected to the inner wall of the bidirectional lead screw 202, and the surface of the slide rod 206 is engaged with the inner wall of the positioning rod 205. Two intercepting frames 210 are fixedly connected to the surface of the bidirectional lead screw 202. Corrugated sleeves 211 are fixedly connected to both the front and rear ends of the smooth frame 203, and one end of the corrugated sleeve 211 is fixedly connected to the inner wall of the control frame 201.
[0050] In this embodiment of the utility model, the positioning rod 205 moves within the bidirectional lead screw 202 and is locked within the control frame 201, thereby locking the bidirectional lead screw 202. The sliding rod 206 moves downward within the bidirectional lead screw 202 and is locked within the positioning rod 205, thereby positioning the positioning rod 205. This ensures the stable locking of the bidirectional lead screw 202 and guarantees the guiding and limiting effect of the smooth frame 203 on the plastic parts.
[0051] In some embodiments, such as Figure 4As shown, in a preferred embodiment of the present invention, the top end of the guide block 204 is fixedly connected to the limiting disk 207, the inner wall of the limiting disk 207 is slidably connected to the limiting rod 208, the surface of the limiting rod 208 is snapped into the inner wall of the smooth frame 203, and a nylon rope 209 is fixedly connected to the surface of the limiting rod 208, the other end of the nylon rope 209 is fixedly connected to the top of the smooth frame 203.
[0052] The positioning rod 205, the limiting rod 208, and the corrugated sleeve 211 are all rubber components with excellent elasticity, which allows the surface of the positioning rod 205 to be in close contact with the inner wall of the control frame 201, and the surface of the limiting rod 208 to be in close contact with the inner wall of the limiting plate 207 and the smooth frame 203.
[0053] In this embodiment of the utility model, after the guide block 204 rotates at a suitable angle within the smooth frame 203, the limiting rod 208 slides into the limiting disk 207 and is locked within the smooth frame 203, thereby locking the guide block 204.
[0054] It should be noted that the conveyor 100, bidirectional lead screw 202, control frame 201 and limit plate 207 mentioned above are all devices with relatively mature existing technology. The specific model can be selected according to actual needs. At the same time, the conveyor 100 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.
[0055] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A plastic parts assembly equipment, comprising a conveyor (100), characterized in that: It also includes an anti-deviation mechanism (200), which includes an adjustment frame (201) fixedly connected to the bottom of the conveyor (100). A bidirectional lead screw (202) is rotatably connected to the inner wall of the adjustment frame (201). Two smooth frames (203) are slidably connected to the inner wall of the adjustment frame (201). A guide block (204) is hinged to one side of the smooth frame (203).
2. The plastic parts assembly equipment according to claim 1, characterized in that, The inner wall of the bidirectional lead screw (202) is slidably connected to a positioning rod (205), and the surface of the positioning rod (205) is engaged with the inner wall of the control frame (201).
3. The plastic parts assembly equipment according to claim 2, characterized in that, The inner wall of the bidirectional lead screw (202) is slidably connected to a slide rod (206), and the surface of the slide rod (206) is engaged with the inner wall of the positioning rod (205).
4. The plastic parts assembly equipment according to claim 1, characterized in that, The top of the guide block (204) is fixedly connected to a limiting disk (207).
5. The plastic parts assembly equipment according to claim 4, characterized in that, The inner wall of the limiting plate (207) is slidably connected to a limiting rod (208), and the surface of the limiting rod (208) is engaged with the inner wall of the smooth frame (203).
6. The plastic parts assembly equipment according to claim 1, characterized in that, The smooth frame (203) is fixedly connected to both the front and rear ends with corrugated sleeves (211), and one end of the corrugated sleeves (211) is fixedly connected to the inner wall of the control frame (201).
7. The plastic parts assembly equipment according to claim 1, characterized in that, The surface of the bidirectional lead screw (202) is fixedly connected with two interceptors (210).
8. The plastic parts assembly equipment according to claim 5, characterized in that, The surface of the limiting rod (208) is fixedly connected to a nylon rope (209), and the other end of the nylon rope (209) is fixedly connected to the top of the smooth frame (203).