A packaging box packing machine for plastic products

CN224632011UActive Publication Date: 2026-08-14SUZHOU QINGXU PACKAGING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0003]传统的塑料制品的包装箱打包机主要由输送机构、机架、送带机构及熔接机构组成,使用时,操作人员将待打包的塑料制品包装箱放置在输送机构上,由输送机构将包装箱输送至打包工位,随后送带机构将打包带环绕包装箱,再通过熔接机构对打包带接头进行熔接固定,完成打包操作,但输送过程中缺乏对包装箱的有效约束,包装箱会因输送机构的振动、受力不均发生偏移,导致后续打包时位置出现偏差,送带机构的位置调节灵活性差,无法适配不同尺寸的包装箱,进一步影响打包精度

Benefits of technology

[0025]1、本实用新型中,液压伸缩杆与挡板的配合实现精准定位,液压伸缩杆伸展时可从两侧牢牢夹紧包装箱,配合缓冲垫避免箱体变形,保障定位稳定性,同时,电机一驱动齿轮沿齿槽移动,带动挡板与包装箱平稳移送,移动组件中滑轮沿滑槽滑动进一步辅助导向,使包装箱精准移送至龙门架下方,确保打包位置准确,改善了定位不准及打包位置偏移的问题。

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Abstract

This utility model relates to the field of packaging machine technology and discloses a packaging box packaging machine for plastic products. It includes a worktable, a positioning mechanism on the top of the worktable, multiple transport rods rotatably connected to the top of the worktable, an electrical box fixedly connected to the bottom of the worktable, a winding drum on the front side of the electrical box, a quick-release mechanism on the front side of the winding drum, a packaging assembly on the top of the electrical box, and a toolbox fixedly connected to the rear side of the electrical box. The positioning mechanism includes a guide rail, which is fixedly connected to the front side of the worktable. In this utility model, when the hydraulic telescopic rod extends, it can firmly clamp the packaging box from both sides, ensuring positioning stability. A motor drives a gear to move along the tooth groove, driving the baffle and packaging box to move smoothly, accurately moving the packaging box to below the gantry frame, ensuring accurate packaging position, and solving the problems of inaccurate positioning and packaging position deviation in the prior art.
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Description

Technical Field

[0001] This utility model relates to the field of packaging machine technology, and in particular to a packaging machine for plastic products. Background Technology

[0002] A packing machine is a device that uses packing straps to secure items. It is widely used in plastic product processing, logistics transportation, and warehousing. By bundling the packaging boxes of plastic products, it prevents the boxes from scattering during handling and transportation, thereby ensuring the integrity of the goods and the efficiency of transportation.

[0003] Traditional plastic product packaging box baling machines mainly consist of a conveying mechanism, a frame, a strapping mechanism, and a welding mechanism. During use, the operator places the plastic product packaging box to be packaged on the conveying mechanism, which then transports the box to the packaging station. The strapping mechanism then wraps the strapping around the box, and the welding mechanism welds the strapping joints to complete the packaging operation. However, there is a lack of effective constraint on the packaging box during the conveying process. The box may shift due to vibration and uneven force on the conveying mechanism, resulting in positional deviations during subsequent packaging. The strapping mechanism also has poor position adjustment flexibility and cannot adapt to packaging boxes of different sizes, further affecting the packaging accuracy.

[0004] Existing technologies attempt to reduce offset by optimizing the stability of the conveyor speed. However, when there are differences in the specifications of the packaging boxes, relying solely on the stability of the conveyor speed cannot limit their movement in the lateral direction. The packaging boxes will shift to both sides during the conveying process. Furthermore, when multiple packaging boxes are conveyed continuously, the offset of the previous packaging box will interfere with the position of the next packaging box, resulting in the accumulation of offset problems during batch packaging. At the same time, due to the lack of baffles for pre-positioning, the belt feeding mechanism cannot accurately align with the preset packaging position of the packaging box, ultimately causing the strapping to shift and affecting the strength of the binding. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a packaging box packing machine for plastic products, which aims to improve the problems of inaccurate positioning and packing position deviation in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a packaging box packing machine for plastic products, including a workbench, a positioning mechanism provided on the top of the workbench, multiple transport rods rotatably connected to the top of the workbench, an electrical box fixedly connected to the bottom of the workbench, a winding drum provided on the front side of the electrical box, a quick-release mechanism provided on the front side of the winding drum, a packaging assembly provided on the top of the electrical box, and a toolbox fixedly connected to the rear side of the electrical box;

[0007] The positioning mechanism includes a guide rail, which is fixedly connected to the front side of the worktable. The top of the guide rail has multiple toothed grooves, and a sealing frame is slidably connected to the top of the toothed grooves. A motor is fixedly connected to the inner wall of the sealing frame, and a gear is fixedly connected to the output end of the motor. Baffles are slidably connected to the front and rear sides of the top of the worktable. The front baffle is rotatably connected to the motor. A fixing frame is fixedly connected to the bottom of the sealing frame, and the rear side of the fixing frame is fixedly connected to the rear baffle.

[0008] As a further description of the above technical solution:

[0009] The quick-release mechanism includes a limiting rod, which is fixedly connected to the front side of the electrical box. The outer wall of the limiting rod is slidably connected to the inner wall of the winding drum. A threaded groove is provided at the front end of the limiting rod. A threaded seat is threadedly connected to the inner wall of the threaded groove. A conical cylinder is slidably connected to the inner wall of the threaded seat. The outer wall of the conical cylinder is fixedly connected to the inner wall of the winding drum. A trapezoidal block is slidably connected to the bottom of the inner wall of the conical cylinder. A slider is slidably connected to the left and right sides of the trapezoidal block. Both sliders are slidably connected to the bottom of the outer wall of the conical cylinder. A support rod is fixedly connected to the front end of the trapezoidal block. A spring is slidably connected to the middle of the outer wall of the support rod. The rear end of the spring is fixedly connected to the middle of the inner wall of the conical cylinder. A button is fixedly connected to the front end of the support rod. The rear end of the button is fixedly connected to the front end of the spring.

[0010] As a further description of the above technical solution:

[0011] The positioning mechanism also includes multiple hydraulic telescopic rods, which are respectively fixedly connected to adjacent sides of the two baffles. Buffer pads are fixedly connected between adjacent hydraulic telescopic rods. A moving component is provided on the front side of the guide rail, and a heat dissipation component is provided on the front side of the sealing frame.

[0012] As a further description of the above technical solution:

[0013] The movable component includes multiple pulleys, all of which are rotatably connected to the front side of the inner wall of the fixed frame. A groove is provided on the front side of the guide rail, and the multiple pulleys are slidably connected to the groove.

[0014] As a further description of the above technical solution:

[0015] The heat dissipation assembly includes a heat sink, which is disposed on the front side of the sealing frame. Each of the four sides of the front side of the heat sink is threaded with a screw, and multiple screws are threaded to the front side of the sealing frame.

[0016] As a further description of the above technical solution:

[0017] The packaging assembly includes a gantry frame, which is fixedly connected to the top of the electrical box and the toolbox. A tensioning groove is provided on the inner wall of the gantry frame. A tape delivery groove is provided on the right side of the inner wall of the workbench. A hot melt machine is fixedly connected to the front side of the inner wall of the tape delivery groove. A shear is fixedly connected to the middle of the inner wall of the tape delivery groove.

[0018] As a further description of the above technical solution:

[0019] Multiple motors are fixedly connected to the upper inner wall of the toolbox, and the output ends of the multiple motors are fixedly connected to the corresponding transport rods. Multiple partitions are fixedly connected to the lower inner wall of the toolbox.

[0020] As a further description of the above technical solution:

[0021] A finished product box is provided on the right side of the electrical box. A metal plate is fixedly connected to the front of the electrical box, and a magnetic plate is fixedly connected to the rear of the finished product box. The metal plate and the magnetic plate are engaged.

[0022] As a further description of the above technical solution:

[0023] Two support rods are fixedly connected to the top left side of the workbench. Anti-slip brackets are fixedly connected to the bottom ends of the two support rods. Fixing brackets are fixedly connected to the left sides of the electrical box and the toolbox. Screws are fixedly connected to the inner walls of the two fixing brackets.

[0024] This utility model has the following beneficial effects:

[0025] 1. In this utility model, the cooperation between the hydraulic telescopic rod and the baffle achieves precise positioning. When the hydraulic telescopic rod extends, it can firmly clamp the packaging box from both sides. With the help of the buffer pad, the box body is prevented from deforming, ensuring positioning stability. At the same time, the motor drives the gear to move along the tooth groove, which drives the baffle and the packaging box to move smoothly. The pulley in the moving component slides along the slide groove to further assist in guiding, so that the packaging box is accurately moved to the bottom of the gantry, ensuring accurate packaging position and improving the problems of inaccurate positioning and packaging position deviation.

[0026] 2. In this utility model, pressing the button can move the support rod, causing the trapezoidal block to push the slider away from the positioning groove, releasing the constraint between the conical cylinder and the threaded seat, making it easier to pull out the winding drum; after replacement, releasing the button will cause the slider to embed into the groove of the threaded seat under the action of the spring, achieving self-locking fixation. The operation can be completed without tools, improving the efficiency of winding drum assembly and disassembly, and solving the problem of inconvenient winding drum disassembly. Attached Figure Description

[0027] Figure 1This is a perspective view of a packaging box packing machine for plastic products proposed in this utility model;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the image;

[0029] Figure 3 This is a front view of a packaging box packing machine for plastic products according to the present invention;

[0030] Figure 4 This is a structural exploded view of the positioning mechanism of a packaging box packing machine for plastic products proposed in this utility model;

[0031] Figure 5 for Figure 4 Enlarged view of point B in the image;

[0032] Figure 6 This is a structural exploded view of the quick-release mechanism of a packaging box packing machine for plastic products proposed in this utility model;

[0033] Figure 7 This is a partial structural diagram of the workbench of a packaging box packing machine for plastic products proposed in this utility model.

[0034] Legend:

[0035] 1. Workbench; 2. Positioning mechanism; 201. Guide rail; 202. Gear groove; 203. Sealing frame; 204. Motor 1; 205. Gear; 206. Baffle; 207. Fixing bracket 1; 208. Hydraulic telescopic rod; 209. Buffer pad; 210. Moving assembly; 2101. Pulley; 2102. Slide groove; 211. Heat dissipation assembly; 2111. Heat sink; 2112. Screw 1; 3. Quick release mechanism; 301. Limit rod; 302. Threaded groove; 303. Threaded seat; 304. Conical... 305. Cylinder; 306. Trapezoidal block; 307. Sliding ball; 308. Support rod one; 309. Spring; 3000. Button; 4. Transport rod; 5. Electrical box; 6. Winding spool; 7. Packaging assembly; 701. Gantry frame; 702. Tensioning groove; 703. Tape outlet groove; 704. Hot melt machine; 705. Shearer; 8. Toolbox; 9. Motor two; 10. Partition; 11. Finished product box; 12. Metal sheet; 13. Magnetic sheet; 14. Support rod two; 15. Anti-slip frame; 16. Fixing frame two; 17. Screw two. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] Reference Figure 1 , Figure 4 and Figure 5 This utility model provides an embodiment of a packaging box packing machine for plastic products, including a workbench 1 as a supporting component of the overall structure. A positioning mechanism 2 is provided on the top of the workbench 1 to achieve precise positioning and stable conveying of the packaging boxes. Multiple transport rods 4 are rotatably connected to the top of the workbench 1 to carry and convey the packaging boxes to be packed and the already packed packaging boxes. An electrical box 5 is fixedly connected to the bottom of the workbench 1 to provide power support and circuit control for the various electrical components of the equipment. A winding drum 6 is provided on the front side of the electrical box 5 to wind and store packing tape. A quick-release mechanism 3 is provided on the front side of the winding drum 6 to achieve quick assembly and disassembly of the winding drum 6. A packaging assembly 7 is provided on the top of the electrical box 5 to complete the packing operation of the packaging boxes. A toolbox 8 is fixedly connected to the rear side of the electrical box 5 to store the tools and spare parts required for equipment maintenance.

[0038] The positioning mechanism 2 includes a guide rail 201, which provides movement guidance and support for the moving parts of the positioning mechanism 2. The guide rail 201 is fixedly connected to the front side of the worktable 1. The top of the guide rail 201 has multiple toothed grooves 202, which cooperate with gears 205 to achieve transmission. A sealing frame 203 is slidably connected to the top of the toothed grooves 202 to protect the motor 204. The inner wall of the sealing frame 203 is fixedly connected to the motor 204 to provide driving force for the movement of the positioning mechanism 2. The output end of the motor 204 is fixedly connected to the gear 205, which meshes with the toothed grooves 202. To achieve power transmission, baffles 206 are slidably connected to the front and rear sides of the top of the workbench 1, limiting the packaging box from the front and rear directions. The front baffle 206 is rotatably connected to the motor 204. A fixing frame 207 is fixedly connected to the bottom of the sealing frame 203, connecting the sealing frame 203 and the rear baffle 206. The rear side of the fixing frame 207 is fixedly connected to the rear baffle 206. The positioning mechanism 2 also includes multiple hydraulic telescopic rods 208, which clamp and fix the packaging box by telescopic movement. The multiple hydraulic telescopic rods 208 are respectively fixedly connected to the two baffles. On one side adjacent to plate 206, buffer pads 209 are fixedly connected between adjacent hydraulic telescopic rods 208 to prevent hard contact between the hydraulic telescopic rods 208 and the packaging box, thus protecting the box. A moving component 210 is provided on the front side of guide rail 201 to assist the smooth movement of positioning mechanism 2. A heat dissipation component 211 is provided on the front side of sealing frame 203 to dissipate heat from motor 204 to ensure its normal operation. The moving component 210 includes multiple pulleys 2101 to reduce friction during movement. The multiple pulleys 2101 are rotatably connected to fixed frame 2. On the front side of the inner wall of 07, a sliding groove 2102 is provided on the front side of the guide rail 201 to provide a moving track for the pulley 2101. Multiple pulleys 2101 are slidably connected to the sliding groove 2102. The heat dissipation component 211 includes a heat sink 2111 to enhance the heat dissipation effect of the motor 204. The heat sink 2111 is set on the front side of the sealing frame 203. Screws 2112 are threaded around the front side of the heat sink 2111 to fix the heat sink 2111 to the sealing frame 203. Multiple screws 2112 are threaded to the front side of the sealing frame 203.

[0039] Specifically, the operator places the plastic product packaging box on the transport rod 4 of the workbench 1. After starting the equipment, the positioning mechanism 2 works first, and the hydraulic telescopic rods 208 on both side baffles 206 extend synchronously, clamping the packaging box from the front and rear directions through the buffer pads 209 at the ends. The stability of the hydraulic driving force is used to achieve initial positioning. The buffer pads 209 can avoid deformation of the box caused by hard contact. After the box is fixed, the motor 204 starts, and the gear 205 at its output end meshes with the tooth groove 202 on the top of the guide rail 201, driving the sealing frame 203 and the connected baffles 206 to move as a whole. During the movement, the pulleys 2101 on the inner side of the fixed frame 207 move along the... The sliding groove 2102 on the front side of the guide rail 201 slides, and with the precise transmission of the gear 205 and the tooth groove 202, the overall movement trajectory is stable and without deviation. When the box is transported to the bottom of the packaging component 7, the hydraulic telescopic rod 208 retracts and releases the box. At this time, the packaging component 7 begins to perform the packing action. After packing is completed, the transport rod 4 sends the box out under the drive of the motor. Throughout the process, the heat sink 2111 on the front side of the sealing frame 203 is fixed by screw 2112 and continuously dissipates heat for the motor 204, ensuring drive stability. The box always maintains the preset position during the transport and packing process, which solves the problem of packing position deviation caused by inaccurate positioning in the prior art.

[0040] Reference Figure 1 , Figure 3 and Figure 6 The quick-release mechanism 3 includes a limiting rod 301, which axially limits and supports the winding drum 6. The limiting rod 301 is fixedly connected to the front side of the electrical box 5. The outer wall of the limiting rod 301 is slidably connected to the inner wall of the winding drum 6. A threaded groove 302 is provided at the front end of the limiting rod 301 to provide a connection position for the threaded seat 303. The inner wall of the threaded groove 302 is threadedly connected to the threaded seat 303, which works with the tapered cylinder 304 to fix the winding drum 6. The inner wall of the threaded seat 303 is slidably connected to the tapered cylinder 304 to transmit the fixing force to stabilize the winding drum 6. The outer wall of the tapered cylinder 304 is fixedly connected to the inner wall of the winding drum 6. Trapezoidal blocks 305 are slidably connected to the bottom of the inner wall of the tapered cylinder 304. Locking is achieved by moving and squeezing the sliding ball 306. Both sides of the trapezoidal block 305 are slidably connected to the ball joint 306, which are embedded in the corresponding positions to lock the tapered cylinder 304 and the threaded seat 303. Both balls 306 are slidably connected to the bottom of the outer wall of the tapered cylinder 304. The front end of the trapezoidal block 305 is fixedly connected to the support rod 307, which connects the trapezoidal block 305 and the button 309 and transmits the force. The middle of the outer wall of the support rod 307 is slidably connected to the spring 308, which provides the reset elasticity to realize the automatic reset of the trapezoidal block 305. The rear end of the spring 308 is fixedly connected to the middle of the inner wall of the tapered cylinder 304. The front end of the support rod 307 is fixedly connected to the button 309, which is pressed by the operator to start the disassembly action. The rear end of the button 309 is fixedly connected to the front end of the spring 308.

[0041] Specifically, when installing the winding spool 6, first, fit the winding spool 6 onto the limiting rod 301, ensuring that the outer wall of the limiting rod 301 precisely fits against the inner wall of the winding spool 6, thus ensuring the axial positioning of the winding spool 6. Then, screw the threaded seat 303 into the threaded groove 302 at the front end of the limiting rod 301, achieving initial fixation through threaded connection. At this time, the tapered cylinder 304 fits onto the inner wall of the threaded seat 303. Pressing the button 309 causes the support rod 307 to compress the spring 308 and move forward, driving the trapezoidal block 305 to move forward synchronously, releasing the pressure on the slider 306. After the threaded seat 303 is tightened, release the button 309, and the spring 308 releases its elastic force to push the support rod 307 back to its original position. The trapezoidal block 305 then moves backward, and its inclined structure presses the sliders 306 on both sides to slide outward along the inner wall of the tapered cylinder 304, finally embedding into the threaded seat 304. The corresponding groove on the inner wall of 03, through the wedging action of trapezoidal block 305 and slider 306, rigidly locks the conical cylinder 304 and threaded seat 303, achieving radial fixation of the winding drum 6. When replacing the winding drum 6, press button 309, and support rod 1 307 moves forward against the elastic force of spring 308. Trapezoidal block 305 disengages from slider 306, and slider 306 resets under its own weight and the constraint of the inner wall of conical cylinder 304, releasing the lock between conical cylinder 304 and threaded seat 303. After unscrewing threaded seat 303, the old winding drum 6 can be pulled out axially along limit rod 301. After replacing the new winding drum 6, repeat the above installation steps to complete the fixation. The quick locking and releasing of the mechanical structure is achieved by controlling button 309, solving the problem of cumbersome disassembly and assembly of traditional winding drum 6 and improving equipment maintenance efficiency.

[0042] Reference Figure 1 , Figure 2 and Figure 3 The packaging component 7 includes a gantry frame 701, which provides an installation support base for the wrapping and tensioning of the packing strap. The gantry frame 701 is fixedly connected to the top of the electrical box 5 and the toolbox 8. The inner wall of the gantry frame 701 is provided with a tensioning groove 702 to guide the movement of the packing strap and assist in the tensioning action. The inner wall of the workbench 1 is provided with a tape outlet groove 703 on the right side, which provides space for the output of the packing strap and for welding and cutting operations. A heat melter 704 is fixedly connected to the front of the inner wall of the tape outlet groove 703 to heat and weld the packing strap joint to achieve fixation. A shearer 705 is fixedly connected to the middle of the inner wall of the tape outlet groove 703 to cut off the excess packing strap after welding. Multiple motors 9 are fixedly connected to the upper inner wall of the toolbox 8 to provide driving force for the rotation of the transport rod 4 to achieve the conveying function. The output ends of the multiple motors 9 are fixedly connected to the corresponding transport rods 4. Multiple partitions 10 are fixedly connected to the lower inner wall of the toolbox 8 to divide the inside of the toolbox 8 into multiple areas for convenient tool classification and storage.

[0043] Specifically, when the packaging component 7 is working, the tension groove 702 on the inner wall of the gantry 701 guides the strapping to wrap around the packaging box. After the strapping is in place, the heat melter 704 in the strapping groove 703 is activated to heat and fuse the strapping joint. Then the shearer 705 is activated to cut off the excess strapping. After the packaging is completed, the motor 2 9 in the toolbox 8 drives the transport rod 4 to rotate and transport the packaging box to the next stage. The partition 10 in the toolbox 8 is used to classify and store tools and spare parts.

[0044] Reference Figure 1 , Figure 3 and Figure 7 The right side of the electrical box 5 is provided with a finished product box 11 to store the packaged boxes after they are packed. A metal sheet 12 is fixedly connected to the front of the electrical box 5, which works with a magnetic sheet 13 to form a magnetic attraction. A magnetic sheet 13 is fixedly connected to the rear of the finished product box 11 to attract the metal sheet 12. The metal sheet 12 and the magnetic sheet 13 are engaged. Two support rods 14 are fixedly connected to the top left of the workbench 1 to support the entire packing machine. Anti-slip frames 15 are fixedly connected to the bottom of the two support rods 14 to increase the friction between the packing machine and the ground. Fixing frames 16 are fixedly connected to the left sides of the electrical box 5 and the toolbox 8 to fix the packing machine to the ground. Screws 17 are fixedly connected to the inner walls of the two fixing frames 16 to increase the fixation between the packing machine and the ground.

[0045] Specifically, the finished product box 11 is attracted and snapped together with the metal plate 12 on the front side of the electrical box 5 by the rear magnetic piece 13, which facilitates quick docking and disassembly and receiving of packaged boxes. The support rod 14 on the left side of the workbench 1, together with the bottom anti-slip frame 15, enhances the overall stability of the equipment and prevents shaking during operation. The fixing frame 16 on the left side of the electrical box 5 and the toolbox 8 is reinforced and connected by screws 17 to improve the structural firmness and ensure the safe operation of the equipment.

[0046] Working principle: When the packaging box needs to be packed, the operator places it above the transport rod 4. After starting the built-in hydraulic components of the packing machine, the hydraulic telescopic rod 208 will extend until the packaging box is firmly fixed and accurately positioned. Then, the motor 204 is started, and its drive gear 205 moves along the tooth groove 202, thereby driving the sealing frame 203, the motor 204 and the two connected baffles 206 to move as a whole. When it moves to the bottom of the gantry 701, the hydraulic telescopic rod 208 retracts and releases the packaging box. At this time, the packaging component 7 is started, and the packing strap is pulled out from the winding drum 6. It is tensioned evenly on the packaging box by the tension roller and the pressure roller. Then, the hot melter 704 in the tape outlet groove 703 heats and melts the packing strap, and the shearer 705 cuts off the excess part. The packed packaging box continues to move along the positioning mechanism 2 under the drive of the second motor 9, and finally slides into the finished box 11 along the right positioning mechanism 2. This solves the problems of inaccurate positioning of the packaging box and the offset of the packing position in the prior art.

[0047] Furthermore, when it is necessary to replace the winding spool 6, pressing button 309 causes the support rod 307, which is fixed to it, to move backward along the guide hole. The inclined structure at the bottom of the support rod 307 pushes the slider 306 to overcome the elastic force of the spring 308 and disengage from the positioning groove of the tapered cylinder 304. The slider 306 slides down the inner wall of the threaded seat 303 into the receiving cavity. After the tapered cylinder 304 loses its radial constraint, it separates from the threaded seat 303. At this time, the winding spool 6 can be directly pulled out of the mounting base and replaced with a new one. After winding the bobbin 6, press button 309 again to keep the slider 306 in the contracted state. After releasing button 309, support rod 307 returns to its original position under the action of return spring 308. Slider 306 rolls along the conical surface of conical cylinder 304 under the thrust of spring 308 and embeds into the trapezoidal inner wall groove of threaded seat 303. The self-locking characteristic of trapezoidal structure makes conical cylinder 304 and threaded seat 303 fit tightly, realizing the quick fixation of bobbin 6 and solving the problem of inconvenient disassembly of bobbin 6 in existing devices.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A packaging box packing machine for plastic products, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a positioning mechanism (2), the top of the workbench (1) is rotatably connected with multiple transport rods (4), the bottom of the workbench (1) is fixedly connected with an electrical box (5), the front side of the electrical box (5) is provided with a winding drum (6), the front side of the winding drum (6) is provided with a quick release mechanism (3), the top of the electrical box (5) is provided with a packaging component (7), and the rear side of the electrical box (5) is fixedly connected with a toolbox (8). The positioning mechanism (2) includes a guide rail (201), which is fixedly connected to the front side of the workbench (1). The top of the guide rail (201) has multiple toothed grooves (202), and a sealing frame (203) is slidably connected to the top of the toothed grooves (202). A motor (204) is fixedly connected to the inner wall of the sealing frame (203), and a gear (205) is fixedly connected to the output end of the motor (204). Baffles (206) are slidably connected to the front and rear sides of the top of the workbench (1). The front baffle (206) is rotatably connected to the motor (204). A fixing frame (207) is fixedly connected to the bottom of the sealing frame (203), and the rear side of the fixing frame (207) is fixedly connected to the rear baffle (206).

2. The packaging box packing machine for plastic products according to claim 1, characterized in that: The quick-release mechanism (3) includes a limiting rod (301), which is fixedly connected to the front side of the electrical box (5). The outer wall of the limiting rod (301) is slidably connected to the inner wall of the winding drum (6). A threaded groove (302) is provided at the front end of the limiting rod (301). A threaded seat (303) is threadedly connected to the inner wall of the threaded groove (302). A conical cylinder (304) is slidably connected to the inner wall of the threaded seat (303). The outer wall of the conical cylinder (304) is fixedly connected to the inner wall of the winding drum (6). Trapezoidal blocks (304) are slidably connected to the bottom of the inner wall of the conical cylinder (304). 05), the trapezoidal block (305) is slidably connected to both the left and right sides of the trapezoidal block (305), and both of the two sliding balls (306) are slidably connected to the bottom of the outer wall of the conical cylinder (304). The front end of the trapezoidal block (305) is fixedly connected to a support rod (307), and a spring (308) is slidably connected to the middle of the outer wall of the support rod (307). The rear end of the spring (308) is fixedly connected to the middle of the inner wall of the conical cylinder (304). The front end of the support rod (307) is fixedly connected to a button (309), and the rear end of the button (309) is fixedly connected to the front end of the spring (308).

3. The packaging box packing machine for plastic products according to claim 1, characterized in that: The positioning mechanism (2) also includes a plurality of hydraulic telescopic rods (208), which are fixedly connected to adjacent sides of the two baffles (206). A buffer pad (209) is fixedly connected between adjacent hydraulic telescopic rods (208). A moving component (210) is provided on the front side of the guide rail (201), and a heat dissipation component (211) is provided on the front side of the sealing frame (203).

4. A packaging box packing machine for plastic products according to claim 3, characterized in that: The moving component (210) includes a plurality of pulleys (2101), all of which are rotatably connected to the front side of the inner wall of the fixed frame (207). The front side of the guide rail (201) is provided with a sliding groove (2102), and the plurality of pulleys (2101) are slidably connected to the sliding groove (2102).

5. A packaging box packing machine for plastic products according to claim 3, characterized in that: The heat dissipation assembly (211) includes a heat sink (2111), which is disposed on the front side of the sealing frame (203). Each of the four sides of the front side of the heat sink (2111) is threaded with a screw (2112), and multiple screws (2112) are threaded to the front side of the sealing frame (203).

6. A packaging box packing machine for plastic products according to claim 1, characterized in that: The packaging assembly (7) includes a gantry frame (701), which is fixedly connected to the top of the electrical box (5) and the toolbox (8). The inner wall of the gantry frame (701) is provided with a tensioning groove (702). The inner wall of the workbench (1) is provided with a tape delivery groove (703) on the right side. A hot melt machine (704) is fixedly connected to the front side of the inner wall of the tape delivery groove (703). A shear (705) is fixedly connected to the middle of the inner wall of the tape delivery groove (703).

7. A packaging box packing machine for plastic products according to claim 1, characterized in that: Multiple motors (9) are fixedly connected to the upper inner wall of the toolbox (8), and the output ends of the multiple motors (9) are fixedly connected to the corresponding transport rods (4). Multiple partitions (10) are fixedly connected to the lower inner wall of the toolbox (8).

8. A packaging box packing machine for plastic products according to claim 1, characterized in that: A finished product box (11) is provided on the right side of the electrical box (5). A metal sheet (12) is fixedly connected to the front side of the electrical box (5), and a magnet sheet (13) is fixedly connected to the rear side of the finished product box (11). The metal sheet (12) and the magnet sheet (13) are engaged.

9. A packaging box packing machine for plastic products according to claim 1, characterized in that: Two support rods (14) are fixedly connected to the top left side of the workbench (1), and anti-slip brackets (15) are fixedly connected to the bottom ends of the two support rods (14). Fixing brackets (16) are fixedly connected to the left sides of the electrical box (5) and the toolbox (8), and screws (17) are fixedly connected to the inner walls of the two fixing brackets (16).