Magnetic transport belt

Abstract

The present application relates to the technical field of conveying belt, in particular to a magnetic conveying belt, comprising a plurality of sequentially hinged non-magnetic modules and magnetic modules, the magnetic module comprises a module body, a plurality of magnetic pieces arranged in the module body and a plurality of cover pieces for keeping the magnetic pieces in the module body, the module body comprises a flat part and a plurality of first hinge blocks arranged at intervals on both sides of the flat part along the length direction of the conveying belt, a plurality of magnetic pieces are arranged on the flat part and the first hinge blocks, the non-magnetic module comprises a transmission rod arranged along the width direction of the conveying belt and a second hinge block arranged on both sides of the transmission rod and hinged with the first hinge block. The scheme makes the steel bowl keep relatively static with the conveying belt in the whole conveying process of the conveying belt, effectively prevents the collision between the steel bowls, reduces the scratches on the surface of the steel bowl and effectively transmits the steel bowl.

Description

Technical Field

[0001] This invention relates to the field of conveyor belt technology, and more specifically to a magnetic conveyor belt. Background Technology

[0002] In the process of multi-stage stamping of metal sheets, the metal sheets are transported from one process to the next via a conveyor belt. In order to prevent the metal parts from slipping relative to the conveyor belt during transport, which could cause the metal parts to fall or the surface to be scratched, the existing technology usually uses a magnetic conveyor belt with magnetic attraction to transport the metal parts.

[0003] Existing magnetic conveyor belts are made by adding magnetic powder to the conveyor belt components. For example, prior art CN 108584288 B discloses a magnetic PVC lightweight conveyor belt, which is made by adding magnetized iron powder to the conveyor belt structural components. Since it is necessary to ensure the strength of the conveyor belt, usually only a small amount of magnetic powder is added to the conveyor belt components. Therefore, the magnetic force distribution of this magnetic conveyor belt made by adding magnetic powder is uniform, but the magnetic adsorption force is small. It can adsorb and transport magnetically adsorbable materials with small mass, such as small debris.

[0004] In the prior art, there are also magnetic conveyor belts made by embedding magnetic strips inside the conveyor belt. For example, the prior art disclosed in CN108883877 A is a magnetic conveyor belt module in which multiple magnetic conveyor belt modules are hinged in sequence to form a conveyor belt. The magnetic conveyor belt module includes a module body and strip magnetic elements embedded in the module body and arranged along the width direction of the conveyor belt. In this magnetic conveyor belt, the magnetic attraction force of the magnetic conveyor belt is mainly concentrated at the strip magnetic elements. When the material is close to the strip magnetic elements, the strip magnetic elements can generate a strong magnetic attraction force on the material.

[0005] When producing cylindrical batteries, our company requires cylindrical steel shells as the battery outer casing. The cylindrical steel shell is first formed by stamping a steel strip using a stamping machine to create a steel bowl of a certain depth. The diameter of the steel bowl varies depending on the battery specifications. After stamping, the depth of the steel bowl is approximately one-third of its diameter, resulting in a flattened oval shape. After being formed by the stamping machine, the steel bowl detaches from the steel strip and falls onto a conveyor belt below. The conveyor belt then transports the steel bowl to various stamping sub-machines for further stretching and stamping to obtain the desired shape. Due to structural limitations and process requirements of the stamping equipment, the stamping dies of each stamping sub-machine are positioned at a higher height than the stamping dies of the main stamping machine. Therefore, the conveyor belt is usually not set straight, and some conveying paths have steep inclines. When the aforementioned magnetic conveyor belt with added magnetic powder is used to transport the steel bowl, the magnetic attraction of this type of conveyor belt is relatively weak. When the steel bowl is transported to the incline, it will slide downwards or even fall off under its own weight, resulting in scratches on the steel bowl and ineffective transport.

[0006] When using a magnetic conveyor belt as described in existing technology CN 108883877 A, the attractive force generated by the strip magnetic element is distributed in a strip shape. When the steel cup falls from the steel belt onto the straight section of the conveyor belt below the stamping die, some of the steel cups will contact the conveyor belt first with their side walls facing down. Since the direction of the steel cup's gravity is the same as the direction of the magnetic force generated by the strip magnetic element, the steel cup is attracted by the strip magnetic element, making its axis parallel to the surface of the conveyor belt. Because the magnetic attraction force generated by the strip magnetic element is relatively large, at the instant the steel cup contacts the moving conveyor belt, the inertial force of the steel cup itself is insufficient. To overcome the magnetic attraction of the bar magnetic element on the steel bowl, the steel bowl is flipped so that its axis is perpendicular to the surface of the conveyor belt and lies flat. When the conveyor belt carries the steel bowl, whose axis is parallel to the surface of the conveyor belt, to the uphill section, the direction of the weight of the steel bowl and the direction of the magnetic force generated by the bar magnetic element on the steel bowl form a large angle. Since the steel bowl is a flattened circle with a diameter much larger than its depth, the weight of the steel bowl will cause it to flip, making it lie flat relative to the conveyor belt or roll downwards. The flipped, tilted, or rolling steel bowl will collide with other steel bowls on the conveyor belt, causing scratches on the surface of the steel bowl. Summary of the Invention

[0007] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is to provide a magnetic conveyor belt to solve the problem that the steel bowl cannot remain stationary relative to the conveyor belt and can be effectively transported during the conveying process.

[0008] To solve the above-mentioned technical problems, the present invention provides a magnetic transmission belt, comprising a plurality of non-magnetic modules and magnetic modules hinged sequentially. The magnetic module includes a module body, a plurality of magnetic components disposed within the module body, and a plurality of coverings that hold the magnetic components within the module body. The module body includes a straight portion and a plurality of spaced first hinge blocks protruding from both sides of the straight portion along the length direction of the transmission belt. The plurality of magnetic components are dispersedly disposed in the straight portion and the first hinge blocks. The non-magnetic module includes a transmission rod disposed along the width direction of the transmission belt and second hinge blocks disposed on both sides of the transmission rod and hinged to the first hinge blocks.

[0009] The principle and beneficial effects of the above scheme are as follows:

[0010] Compared to the more concentrated magnetic force generated by bar-shaped magnetic components, the dispersed distribution of magnetic components in this design prevents the formation of a concentrated magnetic force. When the steel bowl detaches from the steel belt and falls, and its sidewall contacts the moving conveyor belt first, the bowl exhibits an inertial force that tilts in the opposite direction of the conveyor belt's movement. Because the projected area of ​​the steel bowl's sidewall is small and cylindrical, the attraction force generated by a single magnetic component is insufficient to keep the bowl horizontally fixed on the moving conveyor belt. Furthermore, since the steel bowl is a shallow cylinder with one open end, the material at the open end is relatively less than that at the bottom, resulting in a dispersed force across the bowl. The magnetic force exerted by the nearby magnetic components on the bottom wall of the steel bowl is greater than that on the opening end of the bowl. This results in the steel bowl eventually lying flat with its bottom wall in contact with the conveyor belt under the combined effect of inertial force and unbalanced magnetic attraction. When the steel bowl is lying flat, its projected area on the conveyor belt increases, and its bottom wall is parallel to the conveyor belt surface. Therefore, the bottom wall of the steel bowl covers and is close to more magnetic components. At this time, multiple magnetic components exert magnetic attraction on the bottom wall of the steel bowl, making the steel bowl stick tightly to the conveyor belt. This ensures that the steel bowl remains relatively stationary with the conveyor belt throughout the entire transport process, and it will not slide down or flip over when passing through the uphill section. This effectively prevents collisions between steel bowls, reduces scratches on the surface of the steel bowl, and facilitates the effective transport of the steel bowl.

[0011] Furthermore, the first hinge blocks on both sides of the straight portion are symmetrically arranged, and an opening is formed between adjacent first hinge blocks on the same side of the straight portion to allow the insertion of a corresponding second hinge block. The first hinge block and the corresponding second hinge block are coaxially provided with shaft holes, and multiple first hinge blocks and multiple corresponding second hinge blocks are hinged by a pivot.

[0012] Furthermore, the upper surfaces of the first hinge blocks near both sides of the module body are provided with grooves along the length of the conveyor belt. The magnetic component includes multiple sets of magnetic block groups. Each set of magnetic block groups includes a fixed magnetic block embedded in the straight section between the two side grooves and a movable magnetic block that slides in the two side grooves respectively.

[0013] Since the movable magnetic block can slide in the chute, when used to transport steel bowls with smaller diameters, the movable magnetic block slides closer to the steel bowl under the attraction of the smaller diameter steel bowl to generate a greater magnetic attraction force on the steel bowl, which can effectively magnetically attract steel bowls of different diameters.

[0014] Furthermore, the fixed magnetic block and the movable magnetic block of the same magnetic block group are arranged collinearly, and the covering includes multiple covers corresponding to the multiple magnetic block groups. The covers are detachably connected to the module body, and the covers seal the fixed magnetic block and the movable magnetic block of the same magnetic block group inside the module body. The upper surface of the covers is flush with the upper surface of the module body.

[0015] Furthermore, the cover is provided with an anti-slip mechanism, which includes a groove corresponding to the slide groove on the lower surface of the cover, a slide cylinder fixedly connected in the groove, and a slide plate that is sealed and slidably connected to the inner wall of the slide cylinder. The lower end of the slide cylinder is open, and a retaining ring is provided at the open end of the slide cylinder to prevent the slide plate from detaching from the slide cylinder. Multiple perforations are evenly distributed vertically through the slide plate, and an elastic membrane is sealed and fixedly connected inside the perforations to close the perforations. The inner cavity of the slide cylinder above the slide plate is filled with fluid.

[0016] When the slide is not squeezed by the moving magnetic block, the fluid cannot force the elastic membrane to expand and bulge out from under the slide under the elastic force of the membrane itself. When the moving magnetic block is attracted by the steel cup, it causes the moving magnetic block to push the slide upward and move closer to the steel cup. At this time, the fluid is squeezed and the elastic membrane is forced to expand and bulge out from under the slide. When the moving magnetic block pushes the slide upward and contacts the upper bottom wall of the slide cylinder, the slide stops moving. When the conveyor belt passes through the uphill section, the elastic membrane bulging out from under the slide can block the moving magnetic block and prevent it from sliding down the conveyor belt. As a result, the steel cup will not slide down under the magnetic attraction of the moving magnetic block.

[0017] Furthermore, the fluid is a non-Newtonian fluid.

[0018] Furthermore, the module body, the non-magnetic module, and the cover are all made of PEEK (polyetheretherketone) plastic. The stamped steel bowl can reach temperatures of up to 60 degrees Celsius. PEEK plastic has high strength and good high-temperature resistance, making it less likely for the conveyor belt to melt or soften after stamping.

[0019] Furthermore, the transmission rod is integrally formed with the second hinge block.

[0020] Furthermore, the straight portion is integrally formed with the first hinge block.

[0021] Furthermore, plugs are provided at both ends of the rotating shaft, and the plugs are interference-fitted with the shaft holes on the outermost first hinge block or the second hinge block.

[0022] Compared with existing technologies, this solution has at least the following beneficial effects:

[0023] 1. By setting up dispersed magnetic components, the steel bowl is ensured to be laid flat and magnetically attracted to the conveyor belt after falling from the steel belt, thus preventing the steel bowl from rolling or flipping when it is transported to the uphill section, which would cause scratches or bumps.

[0024] 2. A sliding magnetic block is installed. When stamping steel bowls of different specifications, the magnetic block can slide closer to the steel bowl to generate the maximum magnetic attraction force, ensuring that the steel bowl is effectively attracted and remains stationary relative to the conveyor belt.

[0025] 3. The anti-slip mechanism on the cover can effectively prevent the moving magnetic block from moving after it has effectively attracted the steel bowl. When passing through the uphill section, it can effectively prevent the steel bowl from sliding down the conveyor belt. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the present invention from a top view perspective.

[0028] Figure 2 for Figure 1 Sectional view of AA.

[0029] Figure 3 for Figure 1 BB section view.

[0030] Figure 4 for Figure 2 Enlarged view of section A.

[0031] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0032] Figure 6 for Figure 5 The structural state diagram when the moving magnetic block attracts the steel bowl.

[0033] Figure 7 for Figure 1A schematic diagram of the structure after removing the cover.

[0034] The meanings of the labels in the attached diagram are as follows:

[0035] Non-magnetic module-10; transmission rod-101; second hinge block-102; magnetic module-20; module body-201; slide groove-2011; straight part-2012; first hinge block-202; cover-203; groove-2031; slide cylinder-204; retaining ring-2041; slide plate-205; perforation-2051; elastic membrane-2052; fluid-206; fixed magnetic block-207; movable magnetic block-208; shaft hole-301; rotating shaft-302; plug-303. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0038] A magnetic conveyor belt according to this embodiment includes a plurality of non-magnetic modules 10 and magnetic modules 20 that are hinged sequentially. The magnetic module 20 includes a module body 201, a plurality of magnetic components disposed within the module body 201, and a plurality of coverings that hold the magnetic components within the module body 201. The module body 201 includes a straight portion 2012 and a plurality of spaced first hinge blocks 2013 that protrude from both sides of the straight portion 2012 along the length direction of the conveyor belt. The plurality of magnetic components are dispersedly disposed in the straight portion 2012 and the first hinge blocks 2013. The non-magnetic module 10 includes a transmission rod 101 disposed along the width direction of the conveyor belt and second hinge blocks 102 disposed on both sides of the transmission rod 101 and hinged to the first hinge blocks 2013.

[0039] like Figures 1-3As shown, the first hinge blocks 2013 on both sides of the straight portion 2012 are symmetrically arranged. The first hinge blocks 2013 are integrally formed with the straight portion 2012. The upper surface of the first hinge blocks 2013 is flush with the upper surface of the straight portion 2012. An opening is formed between adjacent first hinge blocks 2013 on the same side of the straight portion 2012 to accommodate the insertion of a corresponding second hinge block 102. The second hinge block 102 is integrally formed with the transmission rod 101. The two ends of the transmission rod 101 are used to connect with drive chains such as transmission chains to drive the entire conveyor belt to move. The first hinge block 2013 and the corresponding second hinge block 102 are both provided with shaft holes 301 on the same axis. Multiple first hinge blocks 2013 and multiple corresponding second hinge blocks 102 are hinged by a rotating shaft 302. The two ends of the rotating shaft 302 are provided with plugs 303. The plugs 303 are interference-fitted with the shaft holes 301 on the outermost first hinge block 2013 or the second hinge block 102 to prevent the rotating shaft 302 from disengaging from the shaft holes 301. The upper surfaces of the non-magnetic module 10 and the magnetic module 20, which are hinged to each other in sequence, are flush.

[0040] Combination Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the module body 201 has grooves 2011 arranged along the length of the conveyor belt on the upper surface of the first hinge blocks 202 near both sides. The grooves 2011 are rectangular grooves. The magnetic component includes multiple sets of magnetic block groups. Each set of magnetic block groups includes fixed magnetic blocks 207 embedded in the straight portion 2012 between the two side grooves 2011 and movable magnetic blocks 208 respectively slidably in the two side grooves 2011. The fixed magnetic blocks 207 and the movable magnetic blocks 208 in the same set of magnetic blocks are arranged collinearly. The minimum distance between adjacent fixed magnetic blocks 207, adjacent movable magnetic blocks 208, or adjacent movable magnetic blocks 208 and fixed magnetic blocks 207 is less than the diameter of the steel bowl, so that when the steel bowl is in a flat state, at least two or more fixed magnetic blocks 207 and / or movable magnetic blocks 208 can generate magnetic attraction force on the steel bowl.

[0041] The covering includes multiple covers 203 corresponding to the multiple magnetic block groups. The covers 203 are detachably connected to the module body 201. Specifically, the covers 203 can be connected to the module body 201 by screws. When the covers 203 cover the fixed magnetic block 207 and the movable magnetic block 208 of the same magnetic block group inside the module body 201, the upper surface of the covers 203 is flush with the upper surface of the module body 201.

[0042] To prevent the movable magnetic block 208 and the steel bowl from sliding downwards when traversing uphill sections, an anti-slip mechanism is provided on the cover 203, such as... Figure 5As shown, the anti-slip mechanism includes a groove 2031 corresponding to the slide groove 2011 and disposed on the lower surface of the cover 203. The groove 2031 is a rectangular groove corresponding to the slide groove 2011. A slide cylinder 204 is fixedly connected inside the groove 2031. The slide cylinder 204 is a rectangular slide cylinder 204 that mates with the inner cavity of the groove 2031. The lower end of the slide cylinder 204 is open. A sliding plate 205 is horizontally disposed inside the slide cylinder 204. The sliding plate 205 is slidably and sealingly connected to the inner wall of the slide cylinder 204. The open end of the slide cylinder 204 is provided with a retaining ring 2041 to prevent the slide plate 205 from detaching from the slide cylinder 204. Multiple perforations 2051 are evenly distributed vertically through the slide plate 205. An elastic membrane 2052 is sealed and fixedly connected inside the perforations 2051 to close the perforations 2051. The inner cavity of the slide cylinder 204 above the slide plate 205 is filled with fluid 206. Preferably, the fluid 206 is a non-Newtonian fluid. Both the slide plate 205 and the slide cylinder 204 are made of non-magnetic materials such as plastic.

[0043] Combination Figure 6 As shown, when the slide plate 205 is not squeezed by the moving magnetic block 208, under the elastic force of the elastic membrane 2052 itself, the non-Newtonian fluid in the space above the slide plate 205 cannot force the elastic membrane 2052 to expand and bulge out below the slide plate 205. Since the non-Newtonian fluid has the characteristic of exhibiting solid properties when subjected to rapid compression and fluid liquid properties when subjected to slow compression, when the moving magnetic block 208 is attracted by the steel bowl and moves rapidly to squeeze the slide plate 205, causing the slide plate 205 to rapidly squeeze the non-Newtonian fluid, since the non-Newtonian fluid exhibits solid properties at this time, the slide plate 205 cannot move upward immediately. At this time, the elastic membrane 2052 cannot expand and bulge out of the lower surface of the slide plate 205, and thus the moving magnetic block 208 can continue to slide on the lower surface of the slide plate 205 to achieve the optimal magnetic attraction position. When the movable magnetic block 208 reaches the optimal magnetic attraction position, it remains stationary. Under the magnetic attraction, the movable magnetic block 208 slowly pushes the slide plate 205 upward to move closer to the steel bowl. At this time, the non-Newtonian fluid exhibits the characteristics of a fluid liquid, forcing the elastic membrane 2052 to expand and bulge downward toward the slide plate 205. When the movable magnetic block 208 pushes the slide plate 205 upward to contact the upper bottom wall of the slide cylinder 204, the slide plate 205 stops moving. When the conveyor belt passes through the uphill section, the elastic membrane 2052 bulging downward toward the slide plate 205 can block the movable magnetic block 208 to prevent it from sliding downward toward the conveyor belt, thus preventing the steel bowl from sliding downward under the magnetic attraction of the movable magnetic block 208.

[0044] Preferably, the module body 201, the non-magnetic module 10, and the cover are all made of PEEK plastic (polyetheretherketone).

[0045] The above are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A magnetic transmission belt, characterized in that: The system includes several non-magnetic modules and magnetic modules that are hinged together in sequence. The magnetic module includes a module body, multiple magnetic components disposed within the module body, and multiple covering components that hold the magnetic components within the module body. The module body includes a flat portion and multiple spaced first hinge blocks that protrude from both sides of the flat portion along the length direction of the conveyor belt. The multiple magnetic components are distributed in the flat portion and the first hinge blocks. The non-magnetic module includes a transmission rod disposed along the width direction of the conveyor belt and second hinge blocks disposed on both sides of the transmission rod and hinged to the first hinge blocks. On the upper surface of the first hinge block near both sides of the module body, a sliding groove is provided along the length direction of the conveyor belt. The magnetic component includes multiple magnetic block groups. The magnetic block group includes a fixed magnetic block embedded in the straight part between the two sliding grooves and a movable magnetic block that slides in the two sliding grooves respectively.

2. The magnetic transmission belt according to claim 1, characterized in that: The first hinge blocks on both sides of the straight section are symmetrically arranged. An opening is formed between adjacent first hinge blocks on the same side of the straight section to allow the insertion of a corresponding second hinge block. The first hinge block and the corresponding second hinge block are coaxially provided with shaft holes. Multiple first hinge blocks and multiple corresponding second hinge blocks are hinged by a pivot.

3. The magnetic transmission belt according to claim 2, characterized in that: The fixed magnetic block and the movable magnetic block of the same magnetic block group are arranged collinearly. The cover includes multiple covers corresponding to the multiple magnetic block groups. The covers are detachably connected to the module body. The covers seal the fixed magnetic block and the movable magnetic block of the same magnetic block group inside the module body. The upper surface of the covers is flush with the upper surface of the module body.

4. The magnetic transmission belt according to claim 3, characterized in that: The cover is provided with an anti-slip mechanism, which includes a groove corresponding to the slide groove on the lower surface of the cover, a slide cylinder fixedly connected in the groove, and a slide plate that is sealed and slidably connected to the inner wall of the slide cylinder. The lower end of the slide cylinder is open, and a retaining ring is provided at the open end of the slide cylinder to prevent the slide plate from detaching from the slide cylinder. Multiple perforations are evenly distributed vertically through the slide plate, and an elastic membrane is sealed and fixedly connected inside the perforations to close the perforations. The inner cavity of the slide cylinder above the slide plate is filled with fluid.

5. The magnetic transmission belt according to claim 4, characterized in that: The fluid is a non-Newtonian fluid.

6. The magnetic transmission belt according to any one of claims 1-5, characterized in that: The module body, the non-magnetic module, and the cover are all made of PEEK (polyetheretherketone) plastic.

7. The magnetic transmission belt according to claim 6, characterized in that: The transmission rod is integrally formed with the second hinge block.

8. The magnetic transmission belt according to claim 7, characterized in that: The straight section is integrally formed with the first hinge block.

9. The magnetic transmission belt according to claim 2, characterized in that: The two ends of the rotating shaft are provided with plugs, and the plugs are interference-fitted with the shaft holes on the outermost first hinge block or the second hinge block.

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