Magnetic conveying belt wheel and transition conveying belt device with same
By installing permanent magnets on the conveyor belt pulleys, the problem of surface contamination of the sheet metal caused by the transition pulleys in the conveyor belt device was solved, achieving smooth drop of the sheet metal and protection of its surface finish.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO SHOUGANG AUTO PARTS CO LTD
- Filing Date
- 2025-05-10
- Publication Date
- 2026-04-14
AI Technical Summary
In existing conveyor belt systems, black debris is left on the surface of the sheet metal during transport due to the use of transition wheels, which affects the smoothness of the sheet metal.
Magnetic conveyor belts are used, and permanent magnets are used to attract the plates to ensure that they fall smoothly onto the material pile, thus avoiding the use of transition wheels.
This ensures the smooth drop of the sheet material at the end of the conveyor belt, avoiding surface debris contamination and improving the surface finish of the sheet material.
Smart Images

Figure CN224118087U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of automotive sheet metal transport devices, specifically to a magnetic conveyor belt wheel and a transition conveyor belt device having the same. Background Technology
[0002] Sheet metal is a common raw material in automobile production. It is mainly used to make various door panels for automobiles. The processing steps for sheet metal mainly include cutting and stamping.
[0003] As companies increase their automation levels, the cutting and stamping of sheet metal are now generally carried out by automated production lines. Since both cutting and stamping require multiple steps, conveyor belts are installed on the automated cutting and stamping production lines to transport the sheet metal between the various processing stations.
[0004] Chinese patent number ZL202410607817.9 discloses: "An automatic feeding device for automotive stamping dies, relating to the field of automotive sheet metal processing, solves the problem that existing automotive stamping processing devices are difficult to feed smaller automotive sheet metals. It includes: a device base and two drive rollers symmetrically fixedly installed on the top of the device base; two symmetrically distributed transmission belts rotatably installed between the two drive rollers; a mounting frame fixedly installed on the top of the device base; a lower die fixedly installed between the two sides of the mounting frame; a hydraulic telescopic rod fixedly installed on the top of the mounting frame; and an upper die located above the lower die at the output end of the hydraulic telescopic rod. It also includes: a feeding mechanism for conveying sheet metal to the lower die; the feeding mechanism is installed between the two transmission belts. This invention, through its feeding mechanism, facilitates automatic feeding of smaller automotive sheet metals, thereby achieving a sustainable automatic feeding effect."
[0005] However, including the conveyor belt in the aforementioned patent, existing conveyor belt devices for transporting sheet metal all have a problem: since the sheet metal at each processing station is stacked, if the sheet metal is allowed to fall freely from the conveyor belt device, it cannot fall smoothly onto the stack under the action of gravity, but falls vertically to the ground. Therefore, existing conveyor belt devices are equipped with a transition wheel at both ends to ensure that the sheet metal falls onto the stack.
[0006] However, the aforementioned transition wheels are generally made of plastic, and when they come into contact with the sheet material, they leave black debris on the sheet material, which affects the smoothness of the sheet material. Therefore, it is necessary to develop a conveyor belt device that can make the sheet material fall smoothly onto the material pile without relying on the transition wheels. Summary of the Invention
[0007] In order to overcome the shortcomings of existing conveyor belt devices for transporting sheet metal, which rely on transition wheels to ensure that the sheet metal falls smoothly onto the material pile, resulting in black debris remaining on the sheet metal, this utility model provides a magnetic conveyor belt wheel and a transition conveyor belt device having the same.
[0008] The technical solution of this utility model to solve its technical problem is: a magnetic conveyor belt wheel, comprising:
[0009] A wheel body, which includes an axle hole located at the center;
[0010] It also includes:
[0011] The wheel body has several permanent magnets and several mounting slots on its outer circumferential surface. The mounting slots are arranged around the circumference of the wheel body. The permanent magnets are installed in the mounting slots. The wheel body is also connected to several fixing covers. The fixing covers are placed on the mounting slots and form an interference fit with the permanent magnets in the mounting slots to prevent the permanent magnets from detaching from the mounting slots.
[0012] Furthermore, the mounting groove extends radially through both sides of the wheel body, so that the two sides of the wheel body form an insertion port that connects to the mounting groove, and the permanent magnet can be inserted into the mounting groove through the insertion port.
[0013] Furthermore, the mounting groove also includes an opening on the outer peripheral surface of the wheel body, and the fixing cover can be installed radially along the wheel body to the opening, and the fixing cover can be fitted into the mounting groove so that the outer side of the fixing cover is flush with the outer peripheral surface of the wheel body.
[0014] Furthermore, the wheel body has recessed snap-fit grooves at the insertion openings of the mounting slots on both sides, and the fixed cover has protruding snap-fit plates at both ends. When the snap-fit plates and snap-fit grooves form a snap-fit engagement, the snap-fit plates at both ends of the fixed cover can abut against the side walls of the wheel body to prevent the fixed cover from moving axially relative to the wheel body.
[0015] Furthermore, the snap-fit groove is also provided with a threaded hole, and the snap-fit plate has a through bolt hole. By passing the bolt through the bolt hole and tightening it into the threaded hole, the fixing cover can be prevented from moving radially relative to the wheel body.
[0016] Furthermore, the wheel body is configured as an aluminum wheel, and the permanent magnet is configured as a magnet block with a magnetic strength of 2000-2500 high-speed units.
[0017] Furthermore, the mounting grooves are distributed in a circumferentially equidistant array around the axis on the outer peripheral surface of the wheel body.
[0018] This utility model also includes a transition conveyor belt device, which includes the magnetic conveyor belt wheel described in any one of the above-mentioned items;
[0019] It also includes:
[0020] The support frame is provided, and the wheel body of the magnetic conveyor belt wheel is rotatably connected to the support frame via a rotating shaft. Both the support frame and the magnetic conveyor belt wheel are provided in twos and are arranged at intervals.
[0021] A conveyor belt, which is wound around the two magnetic conveyor belt pulleys.
[0022] The transportation process of automobile door panels in this utility model:
[0023] First, after the sheet material is processed at the previous station, it is placed on this conveyor belt device. Then, the conveyor belt wheel rotates, driving the conveyor belt forward. The sheet material on the conveyor belt moves forward with it. When the sheet material moves to the end of the conveyor belt device, since the sheet material is steel, it will be attracted by the permanent magnet installed on the conveyor belt wheel. When the front end of the sheet material leaves the conveyor belt, its rear end will still be attracted to the conveyor belt device to prevent the sheet material from falling. Only when the rear end of the sheet material also leaves the conveyor belt will the sheet material fall down and land smoothly on the material pile.
[0024] The beneficial effects of this utility model are as follows:
[0025] 1. Permanent magnets are installed on the conveyor belt wheel. The permanent magnets can attract the sheet material passing through the conveyor belt wheel, thereby replacing the original transition wheel through the action of magnetic force, ensuring that the surface of the conveyor belt will not be contaminated during the cutting and stamping process.
[0026] 2. The permanent magnet is installed in the mounting groove of the conveyor belt pulley, and a fixed cover is provided on the mounting groove to restrict the movement of the permanent magnet. The fixed cover also protects the permanent magnet.
[0027] 3. The connection between the fixed cover and the wheel body is simple and firm, which makes it very convenient to install and remove the permanent magnets on the wheel body, facilitating subsequent maintenance and adjustment of the conveyor belt wheel. Attached Figure Description
[0028] Figure 1 This is a structural schematic diagram of Embodiment 1 of the present invention.
[0029] Figure 2 This is an exploded view of Embodiment 1 of this utility model.
[0030] Figure 3 This is a cross-sectional view of Embodiment 1 of this utility model.
[0031] Figure 4 This is a schematic diagram of the wheel body in Embodiment 1 of this utility model.
[0032] Figure 5This is a schematic diagram of the structure of the fixed cover in Embodiment 1 of this utility model.
[0033] Figure 6 This is a structural schematic diagram of Embodiment 2 of this utility model.
[0034] The following are the labels in the diagram: 1. Wheel body; 2. Shaft hole; 3. Permanent magnet; 4. Mounting groove; 5. Fixing cover; 6. Insertion port; 7. Opening; 8. Snap-fit groove; 9. Snap-fit plate; 10. Threaded hole; 11. Bolt hole; 12. Bolt; 13. Support frame; 14. Rotating shaft; 15. Conveyor belt. Detailed Implementation
[0035] 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.
[0036] It should be understood that although the terms upper, middle, lower, top, one end, etc., appear in this document to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other for ease of understanding, and are not used to define any directional or sequential restrictions.
[0037] Example 1
[0038] Combination Figures 1 to 5 The magnetic conveyor belt pulley shown includes a pulley body 1, which includes a shaft hole 2 located at the center; it also includes a plurality of permanent magnets 3. A plurality of mounting grooves 4 are formed on the outer circumferential surface of the pulley body 1. The mounting grooves 4 are arranged circumferentially around the pulley body 1. The permanent magnets 3 are installed in the mounting grooves 4. A plurality of fixing covers 5 are also connected to the pulley body 1. The fixing covers 5 are placed on the mounting grooves 4 and form an interference fit with the permanent magnets 3 in the mounting grooves 4 to prevent the permanent magnets 3 from detaching from the mounting grooves 4.
[0039] Combination Figure 2 and Figure 4 As shown, in this embodiment, the mounting groove 4 extends radially through both sides of the wheel body 1, so that the two sides of the wheel body 1 form an insertion port 6 that connects to the mounting groove 4, and the permanent magnet 3 can be inserted into the mounting groove 4 through the insertion port 6.
[0040] Combination Figure 2 and Figure 4As shown, in this embodiment, the mounting groove 4 further includes an opening 7 located on the outer circumferential surface of the wheel body 1. The fixing cover 5 can be installed radially along the wheel body 1 to the opening 7, and the fixing cover 5 can be fitted into the mounting groove 4 so that the outer side of the fixing cover is flush with the outer circumferential surface of the wheel body 1.
[0041] Combination Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the wheel body 1 is provided with recessed snap-fit grooves 8 at the insertion openings 6 of the mounting groove 4 on both sides, and the fixed cover 5 is provided with snap-fit plates 9 at both ends. When the snap-fit plates 9 and the snap-fit grooves 8 form a snap-fit engagement, the snap-fit plates 9 at both ends of the fixed cover 5 can abut against the side walls of the wheel body 1 to prevent the fixed cover 5 from moving axially relative to the wheel body 1.
[0042] Combination Figures 2 to 5 As shown, in this embodiment, a threaded hole 10 is also provided in the snap-fit groove 8, and a bolt hole 11 is provided on the snap-fit plate 9. The bolt 12 passes through the bolt hole 11 and is tightened into the threaded hole 10, which can prevent the fixing cover 5 from moving radially relative to the wheel body 1.
[0043] In this embodiment, the wheel 1 is configured as an aluminum wheel, and the permanent magnet 3 is configured as a magnet block with a magnetic strength of 2500 gauss units.
[0044] Combination Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the mounting grooves 4 are distributed in a circular equidistant array around the axis on the outer circumferential surface of the wheel body 1.
[0045] Combination Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, there are a total of 12 mounting slots 4 on the wheel body 1, and there are also 12 permanent magnets 3 and fixing covers 5.
[0046] The advantages of this embodiment are: relying on the conveyor belt wheel, the plate at the end of the conveyor belt device can be adsorbed to prevent it from falling directly off the conveyor belt, but instead it can fall smoothly onto the material pile, and the absence of a transition wheel can also prevent debris from remaining on the surface of the plate.
[0047] Example 2
[0048] Combination Figure 6The present invention discloses a transition conveyor belt device, which includes the magnetic conveyor belt wheel described in Embodiment 1 above; it also includes a support frame 13 and a conveyor belt 15; the wheel body 1 of the magnetic conveyor belt wheel is rotatably connected to the support frame 13 through a rotating shaft 14, and there are two of the support frame 13 and the magnetic conveyor belt wheel, which are arranged at intervals; the conveyor belt 15 is wound around the two magnetic conveyor belt wheels.
[0049] This embodiment is used for the transportation process of automobile door panels:
[0050] First, after the sheet material is processed at the previous station, it is placed on this conveyor belt device. Then, the conveyor belt wheel rotates, driving the conveyor belt 15 forward. The sheet material on the conveyor belt 15 moves forward with it. When the sheet material moves to the end of the conveyor belt 15 device, since the sheet material is steel, it will be attracted by the permanent magnet 3 installed on the conveyor belt wheel. When the front end of the sheet material leaves the conveyor belt 15, its rear end will still be attracted to the conveyor belt device to prevent the sheet material from falling. The sheet material will only fall when the rear end of the sheet material also leaves the conveyor belt 15, thus landing smoothly on the material pile.
[0051] The remaining structures, methods, and advantages of this embodiment are consistent with those of Embodiment 1 above, and will not be repeated hereafter.
[0052] The above specific embodiments are merely explanations of the present utility model and are not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to the embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of the present utility model.
Claims
1. A magnetic conveyor belt pulley, comprising: Wheel body (1), which includes a shaft hole (2) located at the center; Its features are, It also includes: A plurality of permanent magnets (3) are provided. A plurality of mounting grooves (4) are provided on the outer circumferential surface of the wheel body (1). The mounting grooves (4) are arranged around the circumference of the wheel body (1). The permanent magnets (3) are installed in the mounting grooves (4). A plurality of fixing covers (5) are also connected to the wheel body (1). The fixing covers (5) are placed on the mounting grooves (4) and form an interference fit with the permanent magnets (3) in the mounting grooves (4) to prevent the permanent magnets (3) from detaching from the mounting grooves (4).
2. A magnetic conveyor belt pulley according to claim 1, characterized in that: The mounting groove (4) extends radially through both sides of the wheel body (1) so that the two sides of the wheel body (1) form an insertion port (6) that connects to the mounting groove (4), and the permanent magnet (3) can be inserted into the mounting groove (4) through the insertion port (6).
3. A magnetic conveyor belt pulley according to claim 2, characterized in that: The mounting groove (4) also includes an opening (7) on the outer circumferential surface of the wheel body (1). The fixing cover (5) can be installed radially along the wheel body (1) to the opening (7), and the fixing cover (5) can be fitted into the mounting groove (4) so that the outer side of the fixing cover is flush with the outer circumferential surface of the wheel body (1).
4. A magnetic conveyor belt pulley according to claim 3, characterized in that: The wheel body (1) has recessed snap-fit grooves (8) at the insertion openings (6) of the mounting groove (4) on both sides. The fixed cover (5) has protruding snap-fit plates (9) at both ends. When the snap-fit plates (9) and the snap-fit grooves (8) form a snap-fit engagement, the snap-fit plates (9) at both ends of the fixed cover (5) can abut against the side walls of the wheel body (1) to prevent the fixed cover (5) from moving axially relative to the wheel body (1).
5. A magnetic conveyor belt pulley according to claim 4, characterized in that: The snap-fit groove (8) is also provided with a threaded hole (10), and the snap-fit plate (9) has a through bolt hole (11). The bolt (12) passes through the bolt hole (11) and is tightened into the threaded hole (10), which can prevent the fixing cover (5) from moving radially relative to the wheel body (1).
6. A magnetic conveyor belt pulley according to claim 1, characterized in that: The wheel body (1) is configured as an aluminum wheel, and the permanent magnet (3) is configured as a magnet block with a magnetic strength of 2000-2500 high-speed units.
7. A magnetic conveyor belt pulley according to claim 1, characterized in that: The mounting grooves (4) are distributed in a circular equidistant array around the axis on the outer circumferential surface of the wheel body (1).
8. A transition conveyor belt device, characterized in that: Includes the magnetic conveyor belt pulley as described in any one of claims 1-7; It also includes: The support frame (13) is provided with two magnetic conveyor belt wheels (1) which are rotatably connected to the support frame (13) via a rotating shaft (14). The support frame (13) and the magnetic conveyor belt wheels are provided with two wheels and are spaced apart. The conveyor belt (15) is wound around the two magnetic conveyor belt pulleys.
Citation Information
Patent Citations
Automatic feeding device for automobile stamping die
CN118268454A