Automatic injection device for edge balls of plastic straw mat equipment
By designing guide rails and electromagnetic track entry devices in the plastic tarpaulin equipment, the automatic entry of magnetic edge balls into the track is achieved, solving the problem that the front edge balls cannot be automatically entered into the track, improving the degree of automation and laying efficiency, and reducing labor costs and safety risks.
Patent Information
- Application Number
- CN202520203507.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-10
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2035-02-10
AI Technical Summary
The failure of the head ball to automatically enter the track during the installation of plastic tarpaulin equipment leads to increased labor costs and safety hazards, and also affects the automation process.
Design an automatic ball-tracking device for plastic covering equipment. The device uses a guide rail and an electromagnetic tracker to automatically guide the magnetic ball into the guide rail. The cooperation of the guide groove and the electromagnet ensures that the ball accurately enters the guide rail.
It improves the automation level of plastic tarpaulin equipment, reduces manual intervention, lowers safety risks, ensures the stability and accuracy of laying, and reduces rework and waste.
Smart Images

Figure CN223495892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic covering equipment, and more specifically, to an automatic track-entry device for edge balls in plastic covering equipment. Background Technology
[0002] During the deployment and retraction of plastic tarpaulin equipment in Yantian, a problem arises where the edge balls fail to automatically return to the track during deployment. By the time the tarpaulin is retracted, all the edge balls have detached from the track, and they are fixed within the plastic tarpaulin film using a spaced-out distribution. Therefore, manual intervention is required during deployment to address this issue. This not only increases labor costs and poses significant safety hazards but also severely hinders the automation process of plastic tarpaulin technology.
[0003] How to invent an automatic ball-tracking device for plastic covering equipment to improve these problems has become an urgent problem for those skilled in the art. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an automatic edge ball guide device for plastic tarpaulin equipment. It aims to improve the existing plastic tarpaulin equipment where the edge balls fail to automatically enter the track during installation. During fabric retraction, all the edge balls have already detached from the track, and the edge balls are fixed within the plastic tarpaulin film using a spaced-out distribution. Therefore, manual intervention is required during installation to prevent the edge balls from entering the track. This not only increases labor costs but also poses significant safety hazards.
[0005] This utility model is implemented as follows: An automatic track-entry device for edge balls in plastic covering equipment includes two opposing brackets. Each bracket has an integrally mounted mounting part. One end of a rotating shaft is rotatably mounted on one side surface of each mounting part. A take-up roller is fixedly mounted between the other ends of the two rotating shafts. Plastic cloth is wound around the take-up roller. Several evenly distributed magnetic edge balls are fixedly connected to the two sides of the plastic cloth. Guide rails are provided on the outer sides of both ends of the take-up roller. Each guide rail is a bent rod-shaped structure. The bend of each guide rail forms an annular structure coaxial with the take-up roller. The two ends of each guide rail extend parallel to one side and are spaced apart by a distance smaller than the diameter of the magnetic edge balls. An electromagnetic track-entry device is fixedly connected to the outer side of the annular structure of each guide rail. Each electromagnetic track-entry device is fixedly connected to the corresponding side bracket.
[0006] In a preferred embodiment of this invention, the connection point between the annular structure and the parallel extension portion of each guide rail is located on one side of the winding roller shaft.
[0007] In a preferred embodiment of this utility model, the electromagnetic rail entry device has a C-shaped structure, and both ends of the electromagnetic rail entry device are provided with protrusions along two parallel extensions of the corresponding guide rail. The inner wall of the electromagnetic rail entry device is provided with a guide groove corresponding to the magnetic edge ball, and an electromagnet is embedded in the inner wall of the guide groove located at the upper opening of the electromagnetic rail entry device.
[0008] In a preferred embodiment of this utility model, the opening of the electromagnetic rail entry device is closely attached to the outer wall of the parallel extension portion of the guide rail.
[0009] In a preferred embodiment of this utility model, the guide groove has an installation groove on its inner wall near the upper end, and the electromagnet is detachably connected in the installation groove. One side surface of the electromagnet is smoothly connected to the inner wall of the guide groove.
[0010] In a preferred embodiment of this utility model, each of the parallel extension portions of the guide rail is fixedly connected to the wall of the salt pool by a number of evenly distributed connecting support members.
[0011] In a preferred embodiment of this utility model, each of the rotating shafts is further fitted with an inner ring, and an outer ring is coaxially arranged on the outer side of the inner ring. The outer wall of the inner ring and the inner wall of the outer ring are fixedly connected by a plurality of connecting rods that are evenly distributed in a ring shape. The outer wall of the outer ring is provided with evenly distributed brushes.
[0012] The beneficial effects of this utility model are as follows: The automatic track-entry device for the edge ball of a plastic covering equipment, designed as described above, achieves automatic track entry of the magnetic edge ball by changing the structural shape of the guide rail and installing an electromagnetic track-entry device on the outside of the guide rail. This greatly improves the automation level of the plastic covering equipment, reduces manual intervention, and lowers safety risks. Because the magnetic edge ball can automatically enter the guide rail, the stability and accuracy of the plastic fabric during the laying process are ensured. This not only improves laying efficiency but also reduces rework and waste caused by inaccurate laying, thus lowering overall costs. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0014] Figure 1 This is a schematic perspective view of the overall connection structure with the plastic fabric provided in this embodiment of the utility model;
[0015] Figure 2A perspective view illustrating the overall connection structure between the main body and the plastic fabric, provided for an embodiment of this utility model;
[0016] Figure 3 A perspective view illustrating the overall structure of this utility model;
[0017] Figure 4 A schematic perspective view of the overall structure of the bracket and winding roller provided for an embodiment of this utility model;
[0018] Figure 5 This is a three-dimensional schematic diagram of the overall structure of the guide rail and electromagnetic rail inserter provided in this embodiment of the utility model;
[0019] Figure 6 A three-dimensional schematic diagram of the overall structure of the electromagnetic orbiter provided for an embodiment of this utility model;
[0020] Figure 7 A left-side perspective view of the guide rail and electromagnetic rail inserter provided for an embodiment of this utility model.
[0021] Figure 8 A perspective view illustrating the overall structure of the cleaning mechanism provided for an embodiment of this utility model.
[0022] In the diagram: 1. Bracket; 2. Guide rail; 3. Electromagnetic rail guide; 4. Take-up roller; 5. Plastic fabric; 6. Magnetic edge ball; 101. Mounting part; 102. Rotating shaft; 103. Inner ring; 104. Outer ring; 105. Connecting rod; 106. Brush; 201. Connecting support; 301. Guide groove; 302. Electromagnet. Detailed Implementation
[0023] 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 embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0024] Please see Figures 1 to 8This utility model provides a technical solution: an automatic edge ball guide device for plastic covering equipment, including two opposing brackets 1, each bracket 1 having an integrally provided mounting part 101, one end of a rotating shaft 102 being rotatably mounted on one side surface of each mounting part 101, a take-up roller 4 being fixedly mounted between the other ends of the two rotating shafts 102, plastic cloth 5 being wound on the take-up roller 4, and several evenly distributed magnetic edge balls 6 being fixedly connected to the two sides of the plastic cloth 5, and guide rails 2 being provided on the outer sides of both ends of the take-up roller 4, each guide rail 2 being a bent rod-shaped structure, and each guide rail 2 forming an annular structure coaxial with the take-up roller 4 at the bend, with both ends of each guide rail 2 extending parallel to one side and having a spacing between them smaller than the diameter of the magnetic edge balls 6, and an electromagnetic guide device 3 being fixedly connected to the outer side of the annular structure of each guide rail 2, and each electromagnetic guide device 3 being fixedly connected to the corresponding side bracket 1.
[0025] It should be noted that the magnetic edge ball 6 is made of ferromagnetic material, but it can also be a ferromagnetic alloy or other magnetic materials. The spacing between the two side supports 1 corresponds to the plastic cloth 5, and one edge of the plastic cloth 5 is fixedly connected to the outer wall of the take-up roller 4.
[0026] Please see Figure 1 , Figures 5 to 7 The connection point between the annular structure and the parallel extension of each guide rail 2 is located on one side of the shaft center of the take-up roller 4.
[0027] The connection point between the annular structure of each guide rail 2 and the parallel extension is located on one side of the axis of the take-up roller 4, ensuring that the magnetic edge ball 6 can be smoothly guided by the guide rail 2 after leaving the take-up roller.
[0028] Furthermore, the electromagnetic rail inserter 3 has a C-shaped structure, and both ends of the electromagnetic rail inserter 3 have protrusions along the two parallel extensions of the corresponding guide rail 2. The inner wall of the electromagnetic rail inserter 3 has a guide groove 301 corresponding to the magnetic sphere 6, and an electromagnet 302 is embedded in the inner wall of the guide groove 301 located at the upper opening of the electromagnetic rail inserter 3.
[0029] The protrusions at both ends of the electromagnetic rail guide 3 correspond to the parallel extensions of the guide rail 2 to ensure the accuracy of the magnetic ball 6 entering the guide rail 2 through the guide groove 301. During the rotation of the take-up roller 4 to release the plastic fabric, the guide groove 301 guides the magnetic ball 6. The electromagnet 302 at the end of the guide groove 301 can attract any magnetic ball 6 that has not yet entered the guide groove 301, allowing it to enter the guide groove 301 for guidance.
[0030] Furthermore, the opening of the electromagnetic rail inserter 3 is closely attached to the outer wall of the parallel extension of the guide rail 2.
[0031] After being attracted into the guide groove 301 by the electromagnet 302, the magnetic ball 6 can smoothly enter the outer side of the parallel extension of the guide rail 2 through the opening of the electromagnetic rail inserter 3 after leaving the electromagnetic rail inserter 3.
[0032] Furthermore, the guide groove 301 has an installation groove on its inner wall near the upper end, and the electromagnet 302 is detachably connected in the installation groove. One side surface of the electromagnet 302 is smoothly connected to the inner wall of the guide groove 301.
[0033] The electromagnet 302 and the electromagnetic rail guide 3 are detachably connected for easy maintenance and replacement. One side surface of the electromagnet 302 forms a complete arc-shaped concave surface with the inner wall of the guide groove 301 to ensure the stability of the magnetic ball 6 when it passes through, and also to prevent damage to the magnetic ball 6 caused by the roughness of the inner wall of the guide groove 301.
[0034] Please see Figure 1 , Figure 3 and Figure 8 Each guide rail 2 is fixedly connected to the salt pool wall by several evenly distributed connecting support members 201 through parallel extensions.
[0035] The parallel extension of the guide rail 2 is fixedly connected to the salt pool wall by the connecting support 201 to ensure the stability and reliability of the guide rail 2.
[0036] Furthermore, each rotating shaft 102 is fitted with an inner ring 103, and an outer ring 104 is coaxially arranged on the outside of the inner ring 103. The outer wall of the inner ring 103 and the inner wall of the outer ring 104 are fixedly connected by a number of evenly distributed connecting rods 105 in a ring shape. The outer wall of the outer ring 104 is provided with evenly distributed brushes 106.
[0037] The inner diameter of the inner ring 103 is the same as the outer diameter of the rotating shaft 102. The inner ring 103 can rotate and slide relatively independently on the rotating shaft 102. When the plastic cloth is unfolded, the inner ring 103 can be slid to the outer ring 104 so that the outer ring 104 enters the electromagnetic rail inserter 3. The outer ring 104 is rotated by the connecting rod 105 and the brush 106 set on its outer wall is used to brush and clean the guide groove 301 to improve the overall cleanliness and service life.
[0038] Working Principle: The plastic fabric 5 is unrolled by pulling one edge of the traction device, causing the take-up roller 4 to rotate. During unrolling, the plastic fabric 5 is pulled by the tension at one end. After leaving the take-up roller 4, the magnetic balls 6 on both sides of the plastic fabric 5 enter the corresponding guide groove 301. Guided by the guide groove 301, they move towards the end of the electromagnetic rail inserter 3. Simultaneously, the electromagnet 302 at the end of the guide groove 301 can attract any magnetic balls 6 that haven't entered the guide groove 301 to the guide groove 301 for final position correction. The magnetic balls 6 leave the electromagnetic rail inserter 3 via the protrusion at the upper end and enter the outer side between the parallel extensions of the guide rails 2. The two edges of the plastic fabric 5 are located between the parallel extensions of the guide rails 2. Because the distance between the parallel extensions of the guide rails 2 is smaller than the diameter of the magnetic balls 6, the magnetic balls 6 can only be located on the outer side of the corresponding guide rail 2, thus completing the overall positioning of the plastic fabric 5. When it is necessary to stop laying the plastic fabric 5, the electromagnet 302 is de-energized, completing one laying operation. When winding up the plastic fabric 5, the plastic fabric 5 is rewound onto the winding roller 4 by connecting the rotating shaft 102 to the drive device or by manually rotating the winding roller 4 in the opposite direction. At the same time, the magnetic edge ball 6 returns to the electromagnetic rail 3 through the protrusion located at the lower end of the electromagnetic rail 3 via the parallel extension of the guide rail 2.
[0039] It should be noted that the specific model and specifications of electromagnet 302 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0040] The power supply and principle of electromagnet 302 are clear to those skilled in the art, and will not be described in detail here.
[0041] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. An automatic ball-feeding device for plastic covering equipment, characterized in that, The device includes two opposing brackets, each with an integrally mounted mounting part. A rotating shaft is rotatably mounted on one side of each mounting part, and a take-up roller is fixedly mounted between the other ends of the two rotating shafts. A plastic fabric is wound around the take-up roller, and several evenly distributed magnetic spheres are fixedly connected to the two edges of the plastic fabric. Guide rails are provided on the outer sides of both ends of the take-up roller. Each guide rail is a bent rod-shaped structure, and the bend in each guide rail forms a ring structure coaxial with the take-up roller. Both ends of each guide rail extend parallel to one side with a spacing smaller than the diameter of the magnetic spheres between them. An electromagnetic rail guide is fixedly connected to the outer side of the ring structure of each guide rail, and each electromagnetic rail guide is fixedly connected to the corresponding bracket.
2. The automatic ball-feeding device for plastic covering equipment as described in claim 1, characterized in that: The annular structure of each guide rail is connected to the parallel extension at one side of the take-up roller axis.
3. The automatic ball-feeding device for plastic covering equipment as described in claim 1, characterized in that: The electromagnetic rail entry device has a C-shaped structure, and both ends of the electromagnetic rail entry device have protrusions along two parallel extensions of the corresponding guide rail. The inner wall of the electromagnetic rail entry device has a guide groove corresponding to the magnetic edge ball, and an electromagnet is embedded in the inner wall of the guide groove located at the upper opening of the electromagnetic rail entry device.
4. The automatic ball-feeding device for plastic covering equipment as described in claim 3, characterized in that: The guide groove has an installation slot on its inner wall near the upper end. The electromagnet is detachably connected in the installation slot, and one side surface of the electromagnet is smoothly connected to the inner wall of the guide groove.
5. The automatic ball-feeding device for plastic covering equipment as described in claim 1, characterized in that: The opening of the electromagnetic rail entry device is located close to the outer wall of the parallel extension of the guide rail.
6. The automatic ball-feeding device for plastic covering equipment as described in claim 1, characterized in that: Each of the parallel extensions of the guide rails is fixedly connected to the salt pool wall by a number of evenly distributed connecting supports.
7. The automatic ball-feeding device for plastic covering equipment as described in claim 1, characterized in that: Each of the rotating shafts is also fitted with an inner ring, and an outer ring is coaxially arranged on the outside of the inner ring. The outer wall of the inner ring and the inner wall of the outer ring are fixedly connected by a number of connecting rods that are evenly distributed in a ring. The outer wall of the outer ring is provided with evenly distributed brushes.