Electromagnetism and vacuum combined material conveying unit

Abstract

The invention provides an electromagnetism and vacuum combined material conveying unit, and belongs to the technical field of conveying equipment, the electromagnetism and vacuum combined material conveying unit comprises a transition plate and a connecting pipe installed on the transition plate in a penetrating mode, the upper end of the connecting pipe can be connected with a negative pressure pipeline, the lower end of the connecting pipe is connected with an electro-permanent magnet, and the upper surface of the electro-permanent magnet is fixed to the bottom of the transition plate; a vacuum air cavity is formed in the electro-permanent magnet, the top of the vacuum air cavity communicates with the lower end of the connecting pipe, the bottom of the vacuum air cavity extends to the bottom of the electro-permanent magnet and communicates with the outside of the electro-permanent magnet, a synchronous belt is installed below the electro-permanent magnet, and the communicating position of the vacuum air cavity and the outside is located on one side of the synchronous belt. The technical problems that in the prior art, collinear transportation difficulty of magnetic materials and non-magnetic materials is large, and the materials deviate in the conveying process are solved.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to an electromagnetic and vacuum combined material conveying unit. Background Art

[0002] The vacuum material conveying unit is a material conveying equipment widely used in various industrial fields. It uses the negative pressure principle and is connected to the negative pressure chamber through a negative pressure pipe, thereby forming a negative pressure area on the conveyor belt to achieve the adsorption and conveying of materials. This conveying method has the advantages of simple structure, convenient operation, and high conveying efficiency, so it has been widely used in many occasions.

[0003] In the existing vacuum material conveying unit, the negative pressure chamber usually generates negative pressure through a negative pressure generating device, so that the area where the negative pressure pipe contacts the surface of the conveyor belt forms negative pressure, thereby adsorbing the material. As the conveyor belt moves, the material is transported to the target position together. The structure of this existing conveying unit is mainly composed of a negative pressure pipe, a negative pressure chamber, and a conveyor belt. One end of the negative pressure pipe is connected to the negative pressure chamber, and the other end extends to the corresponding position of the conveyor belt, so that the negative pressure can act on the surface of the conveyor belt to adsorb and fix the material.

[0004] With the development of the automobile industry and the popularization of new energy vehicles, the automobile industry is facing the phenomenon of long-term coexistence of steel and aluminum sheet metal production. Due to the intrinsic performance differences between steel and aluminum sheet metal parts, which are magnetic materials and non-magnetic materials respectively, the existing vacuum material conveying units are difficult to take into account the conveying needs of both when conveying different types of materials, and there are technical problems such as synchronous belt and material deviation during the conveying process. Summary of the invention

[0005] The embodiment of the present application solves the technical problems in the prior art that it is difficult to transport magnetic materials and non-magnetic materials on the same line, and that the synchronous belt and materials deviate during the transportation process, by providing a material conveying unit that combines electromagnetic and vacuum.

[0006] In order to solve the above technical problems, the present invention adopts the following technical scheme: a material conveying unit combining electromagnetic and vacuum, comprising a transition plate and a connecting pipe installed through the transition plate, the upper end of the connecting pipe can be connected to a negative pressure pipe, the lower end of the connecting pipe is connected to an electropermanent magnet, the upper surface of the electropermanent magnet is fixed to the bottom of the transition plate, a vacuum air cavity is provided inside the electropermanent magnet, the top of the vacuum air cavity is connected to the lower end of the connecting pipe, the bottom of the vacuum air cavity extends to the bottom of the electropermanent magnet and is connected to the outside of the electropermanent magnet, a synchronous belt is installed below the electropermanent magnet, and the connection between the vacuum air cavity and the outside is located on one side of the synchronous belt.

[0007] Since a vacuum air cavity is provided inside the electropermanent magnet, the top of the vacuum air cavity is connected to the lower end of the connecting pipe, and the bottom is connected to the outside of the electropermanent magnet, thus realizing the combination of magnetic force and vacuum adsorption force. Therefore, when conveying magnetic materials, the electropermanent magnet generates magnetic force, which can adsorb the magnetic materials and convey them along the logistics direction. When conveying non-magnetic materials, the negative pressure generating device is activated, which can generate negative pressure in the vacuum cavity, adsorb the non-magnetic materials and convey them along the logistics direction. This synergistic effect effectively realizes the co-linear conveying of magnetic materials and non-magnetic materials, meeting the conveying requirements of different materials such as steel and aluminum sheet metal parts produced on the same line in the automotive industry. In addition, since a synchronous belt is installed under the magnet, the connection between the vacuum air cavity and the outside is located on one side of the synchronous belt. Therefore, in the process of conveying materials, the materials can be accurately controlled and guided, avoiding the problems of deviation and slipping of materials on the conveyor belt in traditional conveying methods, and improving the stability and accuracy of material conveying.

[0008] As a further improvement of the above scheme, the structure of the vacuum air cavity is trumpet-shaped, and the bottom of the vacuum air cavity is connected to the outside of the electropermanent magnet through a through hole; thereby, the negative pressure generated inside the vacuum air cavity can be evenly distributed to the bottom of the electropermanent magnet, increasing the adsorption area and improving the adsorption effect of the material.

[0009] As a further improvement of the above solution, the through hole has a bowl-shaped structure, and the aperture of the through hole is the largest at the bottom surface of the electropermanent magnet.

[0010] As a further improvement of the above solution, the bottom of each vacuum air cavity is connected to the outside of the electropermanent magnet through at least two through holes; thereby, the adsorption area can be further increased.

[0011] As a further improvement of the above scheme, a downward-facing notch is provided at the bottom of the electropermanent magnet, and the notch extends along the direction of material conveying. The synchronous belt includes a belt body and a protrusion, and the protrusion of the synchronous belt fits in the notch of the electropermanent magnet; thereby, a close fit and stable connection between the synchronous belt and the electropermanent magnet can be ensured, and the synchronous belt is prevented from shifting during movement, thereby improving the stability of material conveying.

[0012] As a further improvement of the above scheme, two rows of slots are provided at the bottom of the electropermanent magnet along the direction of material conveying, and synchronous belts are installed at the bottom of the two rows of slots, and the through hole is located between the two rows of synchronous belts; when the material is adsorbed by negative pressure through the through hole between the two rows of synchronous belts, the wear of the synchronous belt due to direct contact with the connection between the bottom of the vacuum air cavity and the outside can be avoided, and the stability of material conveying is also improved.

[0013] As a further improvement of the above solution, a long bolt is vertically passed through the transition plate, and the bottom of the long bolt is fixed to the electropermanent magnet; thereby ensuring that the connection between the transition plate and the electropermanent magnet is firm and reliable, and the provision of the long bolt can also facilitate the disassembly and maintenance of the entire device.

[0014] As a further improvement of the above scheme, the connecting pipe includes an upper tube body and a lower tube body connected to each other, and a cavity is provided on the transition plate which penetrates left and right along its width direction, and the top and bottom of the inner wall of the cavity are respectively fixed to the upper tube body and the lower tube body of the connecting pipe.

[0015] As a further improvement of the above scheme, a locking nut is provided on the top of the inner wall of the cavity, and the locking nut cooperates with the peripheral thread of the bottom of the upper tube body; a notch is provided at the bottom of the cavity, and the two sides of the lower tube body are fixed to the notch by bolts; thereby, the upper tube body can be detachably installed on the transition plate, and the setting of the notch facilitates the installation and disassembly of the lower tube body on the transition plate, so that the connecting pipe can be easily replaced and disassembled.

[0016] As a further improvement of the above scheme, the inner wall of the upper end of the lower tube body is nested in the outer wall of the lower end of the upper tube body, and a sealing ring is provided between the inner wall of the lower tube body and the inner wall of the upper tube body; thereby, the air tightness of the connection between the upper tube body and the lower tube body of the connecting pipe can be ensured, negative pressure leakage can be prevented, and the normal operation of the material conveying unit can be ensured.

[0017] It can be seen from the above technical solutions that the present invention has at least the following technical effects or advantages: 1. Since a vacuum air cavity is provided inside the electro-permanent magnet, the top of the vacuum air cavity is connected to the lower end of the connecting pipe, and the bottom is connected to the outside of the electro-permanent magnet, thus realizing the combination of magnetic force and vacuum adsorption force. Therefore, when conveying magnetic materials, the electro-permanent magnet generates magnetic force, which can adsorb the magnetic materials and convey them along the logistics direction. When conveying non-magnetic materials, the negative pressure generating device is activated, which can generate negative pressure in the vacuum cavity, adsorb the non-magnetic materials and convey them along the logistics direction. This synergistic effect effectively realizes the co-linear conveying of magnetic materials and non-magnetic materials, and meets the conveying requirements of different materials such as steel and aluminum sheet metal parts in the automotive industry. In addition, since a synchronous belt is installed under the magnet, the connection between the vacuum air cavity and the outside is located on one side of the synchronous belt. Therefore, in the process of conveying materials, the materials can be accurately controlled and guided, avoiding the problems of deviation and slipping of materials on the conveyor belt in traditional conveying methods, and improving the stability and accuracy of material conveying.

[0018] 2. Since the structure of the vacuum air cavity is in the shape of a bell mouth, its bottom is connected to the outside of the permanent magnet through a bowl-shaped through hole, and the bottom of each vacuum air cavity is connected to the outside through at least two through holes. Therefore, the negative pressure generated inside the vacuum air cavity can be evenly distributed to the bottom of the permanent magnet, effectively increasing the adsorption area, improving the adsorption effect of the material, ensuring that the material can be more firmly adsorbed under the permanent magnet during the conveying process, reducing the shaking and deviation of the material during the conveying process, and further improving the stability of the conveying.

[0019] 3. Since the bottom of the permanent magnet is provided with a notch facing downwards, the notch extends along the direction of material conveying, and the protrusion of the synchronous belt fits into the notch of the permanent magnet. Therefore, the notch can guide the synchronous belt, ensuring the close fit and stable connection between the synchronous belt and the permanent magnet, avoiding the deviation of the synchronous belt during movement, thereby improving the stability of material conveying, especially suitable for conveying materials of different types and sizes, ensuring the position accuracy of the materials during the conveying process.

[0020] 4. Long bolts are vertically penetrated in the transition plate, and the bottom of the long bolts is fixed to the electro-permanent magnet, thereby ensuring that the connection between the transition plate and the electro-permanent magnet is firm and reliable. The setting of the long bolts also facilitates the disassembly and maintenance of the overall device, improving the flexibility and durability of the overall device. The connecting pipe is composed of an upper tube body and a lower tube body. By setting a cavity on the transition plate, setting a locking nut on the top of the inner wall of the cavity to cooperate with the peripheral thread at the bottom of the upper tube body, and setting a notch at the bottom of the cavity, the two sides of the lower tube body are fixed to the notch by bolts, so as to realize the detachable installation of the upper tube body on the transition plate and the convenient disassembly and assembly of the lower tube body, and facilitate the replacement and maintenance of the connecting pipe, thereby reducing the maintenance cost and downtime of the equipment.

[0021] 5. The inner wall of the upper end of the lower tube body is nested in the outer wall of the lower end of the upper tube body, and a sealing ring is provided between the inner wall of the lower tube body and the inner wall of the upper tube body, thereby ensuring the air tightness of the connection between the upper tube body and the lower tube body of the connecting pipe, preventing negative pressure leakage, ensuring the normal operation of the material conveying unit, and improving the reliability and working efficiency of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work: Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3is a cross-sectional view of the present invention; Figure 4 It is a left side view of the present invention; Figure 5 is a cross-sectional view of the synchronous belt in the present invention; Figure 6 It is a schematic diagram of the assembly of the electropermanent magnet and the synchronous belt.

[0023] Explanation of the reference numerals: 1. transition plate, 101. long bolt, 102. cavity, 103. locking nut, 2. connecting pipe, 201. upper tube body, 202. lower tube body, 3. electropermanent magnet, 301. notch, 4. vacuum air cavity, 5. through hole, 6. synchronous belt, 601. belt body, 602. protrusion. DETAILED DESCRIPTION In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] In order to better understand the improvements made by the present invention relative to the prior art, before describing the specific implementation methods of the present invention in detail, the prior art mentioned in the background technology section is first described.

[0025] The present invention discloses a material conveying unit combining electromagnetic and vacuum, such as Figures 1 to 3 As shown, it includes a transition plate 1, a connecting pipe 2, an electropermanent magnet 3 and a synchronous belt 6. In one example, the electropermanent magnet 3 is installed at the bottom of the transition plate 1, the connecting pipe 2 is installed through the transition plate 1, the lower end of the connecting pipe 2 is connected to the electropermanent magnet 3, and the upper end of the connecting pipe 2 can be connected to a negative pressure pipeline. Among them, a vacuum air cavity 4 is also provided inside the electropermanent magnet 3, the top of the vacuum air cavity 4 is connected to the lower end of the connecting pipe 2, and the bottom of the vacuum air cavity 4 extends to the bottom of the electropermanent magnet 3 and is connected to the outside. The synchronous belt 6 is installed at the bottom of the electropermanent magnet 3, and the connection between the vacuum air cavity 4 and the outside is located on one side of the synchronous belt 6.

[0026] In the above embodiment, by setting the vacuum air cavity 4 inside the electro-permanent magnet 3, the top of the vacuum air cavity 4 is connected to the lower end of the connecting tube 2, and the bottom is connected to the outside of the electro-permanent magnet 3, so that the synchronous belt 6 can be free from direct contact with the connection between the bottom of the vacuum air cavity 4 and the outside, thereby avoiding the wear of the conveyor belt. In addition, the electro-permanent magnet 3 has magnetism and can absorb magnetic materials, so it can be absorbed without vacuum pressure, reducing the difficulty of magnetic materials being absorbed.

[0027] The structure of the vacuum air cavity 4 is in the shape of a bell mouth. Figure 3 As shown, the internal size of the vacuum air cavity 4 connected to the connecting pipe 2 is smaller, and the internal size of the vacuum air cavity 4 near the bottom of the electropermanent magnet 3 is larger. Moreover, the bottom of the vacuum air cavity 4 is connected to the outside of the electropermanent magnet 3 through a through hole 5, and the through hole 5 has a bowl-shaped structure, and the aperture of the through hole 5 is the largest at the bottom surface of the electropermanent magnet 3. Therefore, when negative pressure acts in the vacuum air cavity 4, a larger negative pressure area can be effectively formed, so that it is easier to adsorb materials.

[0028] Specifically in this embodiment, a plurality of small through holes 5 are provided at the bottom of each vacuum air cavity 4, so that the negative pressure generated inside the vacuum air cavity 4 can be evenly distributed to the bottom of the electric permanent magnet 3, thereby increasing the adsorption area and improving the adsorption effect of the material. In addition, in order to further improve the efficient adsorption of the material, the electric permanent magnet 3 is preferably an electric permanent magnet, and the electric permanent magnet can change its magnetic strength by adjusting the current, thereby providing flexible control in the adsorption process of different materials. Thus, in actual operation, the material flow and the running state of the conveyor belt can be controlled. When conveying magnetic materials, the electric permanent magnet 3 has magnetism, adsorbs the magnetic materials and transports them along the logistics direction; when conveying non-magnetic materials, the air cavity is ventilated to form negative pressure to adsorb the non-magnetic materials and transport them along the logistics direction. After the magnetic materials are transported to the target position, the electric permanent magnet is energized and loses its magnetism, and the magnetic materials are stacked to the target position; after the non-magnetic materials are transported to the target position, the negative pressure generating device stops working, and the non-magnetic materials are stacked to the target position.

[0029] In this embodiment, if Figure 4 The bottom of the electro-permanent magnet 3 is provided with a notch 301 facing downwards for installing the synchronous belt 6, and the notch 301 extends along the direction of material conveying. Correspondingly, the synchronous belt 6 includes a belt body 601 and a protrusion 602, and the protrusion 602 of the synchronous belt 6 is partially fitted in the notch 301 of the electro-permanent magnet 3, thereby ensuring that the synchronous belt 6 and the electro-permanent magnet 3 are closely matched, and avoiding the synchronous belt 6 from deflecting during the movement.

[0030] Specifically in this embodiment, Figures 4 to 6 As shown, along the direction of material conveying, there are two rows of notches 301 at the bottom of the electropermanent magnet 3, and the bottoms of the two rows of notches 301 are both installed with synchronous belts 6, and the through hole 5 is located between the two rows of synchronous belts 6. Therefore, when the material is adsorbed by negative pressure through the through hole 5 between the two rows of synchronous belts 6, the conveyor belt at the bottom of the electropermanent magnet 3 can be uniformly stressed, thereby improving the stability and efficiency of material conveying.

[0031] In this embodiment, the transition plate 1 is mounted on the electro-permanent magnet 3 by means of long bolts 101. Figure 3As shown, after the long bolt 101 passes through the transition plate 1 from top to bottom, its lower end is fixed to the electropermanent magnet 3, thereby ensuring that the connection between the transition plate 1 and the electropermanent magnet 3 is firm and reliable. At the same time, the provision of the long bolt 101 can also facilitate the disassembly and maintenance of the overall device, thereby improving the flexibility and durability of the overall device.

[0032] The connecting tube 2 includes an upper tube body 201 and a lower tube body 202. The upper tube body 201 and the lower tube body 202 are connected as a whole and are detachable. Figures 1 to 3 As shown, the transition plate 1 is provided with a cavity 102 that runs through the left and right sides along the width direction thereof, and the top and bottom of the inner wall of the cavity 102 are respectively fixed to the upper tube body 201 and the lower tube body 202 of the connecting tube 2, thereby facilitating the replacement and disassembly of the connecting tube 2. More specifically, a locking nut 103 is provided at the top of the inner wall of the cavity 102, and the locking nut 103 is threadedly connected to the outer wall of the upper tube body 201, thereby enabling the upper tube body 201 to be detachably installed on the transition plate 1. At the same time, a notch is provided at the bottom of the cavity 102, and both sides of the lower tube body 202 are fixed to the notch by bolts. Thus, the installation and disassembly of the lower tube body 202 on the transition plate 1 can be achieved through the setting of the notch.

[0033] In addition, the inner wall of the upper end of the lower tube body 202 is nested in the outer wall of the lower end of the upper tube body 201, and a sealing ring is provided between the two, thereby ensuring the air tightness of the connection.

[0034] The working principle of this device is as follows: When conveying magnetic materials, the electro-permanent magnet 3 has magnetism, adsorbs the magnetic materials and conveys them in the direction of logistics; when conveying non-magnetic materials, the air cavity is ventilated to form negative pressure to adsorb the non-magnetic materials and convey them in the direction of logistics. After the magnetic materials are conveyed to the target position, the electro-permanent magnet is energized and loses its magnetism, and the magnetic materials are stacked at the target position; after the non-magnetic materials are conveyed to the target position, the negative pressure generating device stops working, and the non-magnetic materials are stacked at the target position.

[0035] In the description of the present invention, the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "vertical", "horizontal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the purpose of describing the present invention rather than requiring the present invention to be constructed or operated in a specific position, and therefore should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention should be understood in a broad sense, for example, it can be a connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate component. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0036] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in their embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novelties disclosed herein.

Claims

1. A material conveying unit combining electromagnetic and vacuum, characterized in that: The invention comprises a transition plate (1) and a connecting pipe (2) which is installed through the transition plate (1), the upper end of the connecting pipe (2) can be connected to a negative pressure pipe, the lower end of the connecting pipe (2) is connected to an electropermanent magnet (3), the upper surface of the electropermanent magnet (3) is fixed to the bottom of the transition plate (1), a vacuum air cavity (4) is provided inside the electropermanent magnet (3), the top of the vacuum air cavity (4) is connected to the lower end of the connecting pipe (2), the bottom of the vacuum air cavity (4) extends to the bottom of the electropermanent magnet (3) and is connected to the outside of the electropermanent magnet (3), a synchronous belt (6) is installed below the electropermanent magnet (3), and the connection point between the vacuum air cavity (4) and the outside is located on one side of the synchronous belt (6).

2. The electromagnetic and vacuum combined material conveying unit according to claim 1, characterized in that: The structure of the vacuum air cavity (4) is in the shape of a bell mouth, and the bottom of the vacuum air cavity (4) is connected to the outside of the electropermanent magnet (3) through a through hole (5).

3. The electromagnetic and vacuum combined material conveying unit according to claim 2, characterized in that: The through hole (5) has a bowl-shaped structure, and the through hole (5) has the largest aperture at the bottom of the electropermanent magnet (3).

4. The electromagnetic and vacuum combined material conveying unit according to claim 1, characterized in that: The bottom of each vacuum air cavity (4) is connected to the outside of the electropermanent magnet (3) through at least two through holes (5).

5. The electromagnetic and vacuum combined material conveying unit according to claim 4, characterized in that: The bottom of the electropermanent magnet (3) is provided with a notch (301) facing downwards, and the notch (301) extends along the direction of material conveying. The synchronous belt (6) comprises a belt body (601) and a protrusion (602), and the protrusion (602) of the synchronous belt (6) fits in the notch (301) of the electropermanent magnet (3).

6. The electromagnetic and vacuum combined material conveying unit according to claim 5, characterized in that: In the direction of material conveying, two rows of notches (301) are provided at the bottom of the electropermanent magnet (3), and a synchronous belt (6) is installed at the bottom of the two rows of notches (301). The trumpet-shaped vacuum air cavity (4) and the bowl-shaped through hole (5) are both located in the middle of the two rows of synchronous belts (6).

7. An electromagnetic and vacuum combined material conveying unit according to any one of claims 1 to 6, characterized in that: A long bolt (101) vertically penetrates the transition plate (1), and the bottom of the long bolt (101) is fixed to the electropermanent magnet (3).

8. The electromagnetic and vacuum combined material conveying unit according to claim 7, characterized in that: The connecting pipe (2) comprises an upper pipe body (201) and a lower pipe body (202) which are connected to each other. A cavity (102) is provided on the transition plate (1) and passes through the transition plate (1) from left to right along its width direction. The top and bottom of the inner wall of the cavity (102) are respectively fixed to the upper pipe body (201) and the lower pipe body (202) of the connecting pipe (2).

9. The electromagnetic and vacuum combined material conveying unit according to claim 8, characterized in that: A locking nut (103) is provided at the top of the inner wall of the cavity (102), and the locking nut (103) cooperates with the outer peripheral thread of the bottom of the upper tube (201); a notch is provided at the bottom of the cavity (102), and two sides of the lower tube (202) are fixed to the notch by bolts.

10. The electromagnetic and vacuum combined material conveying unit according to claim 1, characterized in that: The inner wall of the upper end of the lower tube body (202) is nested in the outer wall of the lower end of the upper tube body (201), and a sealing ring is provided between the inner wall of the lower tube body (202) and the inner wall of the upper tube body (201).

Images