A magnetic suspension bag inverting conveyor

Abstract

The present invention relates to the technical field of bag inverting conveyors, and specifically to a magnetic levitation bag inverting conveyor, comprising a first conveying section and a second conveying section. The function of the bag inverting is to quickly and steadily push down the packaging bags standing on the conveyor line so that the subsequent palletizing robot can grasp them steadily. However, when conveying soft packages or vertical materials, the bag is unevenly stressed during the inverting process, and its tipping direction and posture are difficult to control. The bag is easily stuck or the bag tilts and rolls during the inverting process. Therefore, the placement of the bags is relatively high. Improper operation during the inverting process may cause the entire conveyor line to fail to run smoothly, and it is not convenient for the subsequent robot to grasp and stack, resulting in reduced conveyor transportation efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of bag inverting conveyors, in particular to a magnetic suspension bag inverting conveyor. Background Art

[0002] The main function of the conveyor is to continuously transport materials along a certain route, including bulk materials and finished items. It can be transported horizontally, inclined and vertically, and can also form a spatial transport route. Conveyors have the characteristics of large transport capacity, long transport distance, low operating cost and high efficiency, so they are widely used in modern logistics systems and automated assembly lines of production enterprises.

[0003] The function of bag tipping is to quickly and steadily push down the standing bags on the conveyor line so that the subsequent palletizing robot can grab them smoothly. However, when conveying soft bags or vertical materials, the bag is unevenly stressed during the tipping process, and its tipping direction and posture are difficult to control. The bag is easily stuck or the bag tilts and rolls during the tipping process. Therefore, it has high requirements for the placement of bags. Improper operation during the tipping process may cause the entire conveyor line to not run smoothly, and it is not convenient for the subsequent robot to grab and stack, resulting in reduced conveyor transportation efficiency. Summary of the invention

[0004] In order to address the deficiencies in the prior art, the present invention provides a magnetically levitated bag inverting conveyor, thereby solving the problem that the existing bag inverting conveyor is difficult to adaptively adjust and control its bag inverting direction and posture during the material inverting process, which easily causes the bag inverting posture to be unstable and cause the bag to get stuck or tilt and roll off.

[0005] The technical solution adopted by the present invention to solve its technical problems is a magnetic suspension inverted bag conveyor, comprising a first conveying part and a second conveying part, the second conveying part is fixedly installed on one side of the first conveying part, the first conveying part and the second conveying part are both roller conveying structures, both ends of the conveying rollers are made of magnetic materials, and the first conveying part and the second conveying part are both provided with magnetic suspension components for driving the conveying rollers. In addition, it also includes an inverted bag frame, the upper part of the first conveying part is fixed with a height axis, a plurality of inverted bag frames are provided, and the plurality of inverted bag frames are arranged up and down and sequentially installed on the height axis, the spacing between two adjacent inverted bag frames is adjustable, and an inverted bag ring is rotatably installed in each inverted bag frame, the outer ring surface of the inverted bag ring is provided with an outer gear ring, and a gear meshing with the outer gear ring is rotatably installed in the bottom inverted bag frame in the stack, a side wall of the first conveying part is fixedly installed with an inverted bag motor, and the output shaft of the inverted bag motor is fixedly connected to the gear, and a plurality of bonding balls are rotatably installed at the side wall position of the inverted bag frame, and the bonding balls roll and fit on the surface of the outer gear ring.

[0006] Preferably, the inverted packaging frames are all "L"-shaped structures, the inverted packaging frames are open in the direction of approaching the conveyed objects facing the first conveying part and in the direction of moving away from the conveyed objects facing the second conveying part, the inverted packaging ring is an incomplete circular ring structure, and the notch of the inverted packaging ring is in the same direction as the open direction of the inverted packaging frame.

[0007] Preferably, both ends of the inner ring surface of the inverted ring in the diameter direction are fixedly installed with bonding plates, and a tensioning shaft is rotatably installed on the bonding plate. A bonding belt is movably arranged in the inverted ring, and both end portions of the bonding belt respectively slide through the bonding plates on both sides of the inverted ring, and both end portions of the bonding belt are respectively wound around the tensioning shafts on both sides.

[0008] Preferably, the fitting belt is made of elastic tensile material, and an anti-strangulation sheet is fixedly installed in the middle of the fitting belt, a transition plate is fixedly installed at the bottom of the inverted package frame that is stacked at the bottom, a transition groove is opened in the middle of the disk surface of the transition plate, a push rod is slidably installed in the transition groove, the push rod is vertically upward and passes through the middle parts of multiple inverted package rings in sequence, the upper part of the push rod is slidably fitted with the side wall of the anti-strangulation sheet, the bottom of the transition plate is fixedly installed on the transition cylinder, and the telescopic end of the transition cylinder is fixedly connected to the push rod.

[0009] Preferably, the transition plate is a thin plate-shaped hollow structure, and the transition plate is located above the conveying roller, and the upper end surface of the transition plate is provided with a breathable pad.

[0010] Preferably, a telescopic frame is slidably installed in the middle of the circular ring of the inverted ring. The telescopic frame is a "T"-shaped structure, and the "T"-shaped surface of the telescopic frame faces the notch direction of the inverted ring. A compression spring is connected between the telescopic frame and the inverted ring, and the height of the telescopic frame is located in the center of the two adjacent pairs of anti-strangulation sheets.

[0011] Preferably, a wavy curved surface is provided on one side of the telescopic frame facing the axis direction of the inverted enveloping ring, and the push rod is matched with a concave portion of the curved surface.

[0012] Preferably, an electromagnet is fixedly installed in the middle of the inverted ring, and a permanent magnet block magnetically matched with the electromagnet is fixedly installed in the middle of the telescopic frame.

[0013] Preferably, both ends of the notch of the inverted ring are hingedly mounted with embracing rods, a torsion spring is connected between the embracing rod and the inverted ring, a shrinkage belt is fixedly connected to the end of the telescopic frame, and the other end of the shrinkage belt is fixedly connected to the embracing rod after sliding through the bonding plate.

[0014] Preferably, the embracing rods all point to the outside of the inverted ring along the tangent direction of the outer arc surface of the inverted ring, the embracing rods are of a tough structure, and the hinged parts of the embracing rods can rotate within an angle range of 0 to 75 degrees.

[0015] Beneficial effects of the present invention:

[0016] (1) The present invention utilizes magnetic suspension rollers as material bag conveying components. Through the action of magnetic force, the conveying rollers provide appropriate buffering and shock absorbing capabilities during the transportation of the material bags, thereby achieving smooth adjustment of the conveying posture of soft bag materials.

[0017] (2) The present invention utilizes the self-rotating motion of the inverting ring to adjust and control the inverting direction and posture of the material bag during the inverting process, thereby reducing the problem of bag jamming or bag tilting and rolling.

[0018] (3) The present invention can realize the stable inverting requirements for material packages of various heights and volume widths through the multiple spacing adjustment function of the inverting frame and the multi-directional support auxiliary clamping function provided by the inverting ring, and has a wide range of application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0020] Figure 1 It is a schematic diagram of the overall connection structure of the present invention;

[0021] Figure 2 for Figure 1 Schematic diagram of top view;

[0022] Figure 3 It is a schematic diagram of the positional relationship among the first conveying part, the second conveying part and the inverted packaging frame in the present invention;

[0023] Figure 4 for Figure 3 A is an enlarged schematic diagram;

[0024] Figure 5 It is a schematic diagram of the positional relationship between the inverted ring and the transition plate in the present invention;

[0025] Figure 6 for Figure 5 The enlarged schematic diagram of point B in FIG.

[0026] Figure 7 for Figure 5 The enlarged schematic diagram of point C in FIG.

[0027] Figure 8 for Figure 5 Schematic diagram of top view;

[0028] Fig. 9 It is a schematic diagram of the positional relationship between the transition groove and the push rod in the present invention;

[0029] Fig.10 for Fig. 9 The enlarged schematic diagram of D in FIG.

[0030] In the figure:

[0031] The first conveying part; 2. The second conveying part; 3. The conveying roller; 11. The height axis; 4. The inverted package frame; 5. The inverted package ring; 51. The outer gear ring; 41. The gear; 12. The inverted package motor; 42. The bonding ball; 52. The bonding plate; 53. The tensioning shaft; 54. The bonding belt; 541. The anti-strangling plate; 43. The transition plate; 44. The transition groove; 45. The push rod; 46. The transition cylinder; 55. The telescopic frame; 56. The compression spring; 57. The electromagnet; 551. The permanent magnet block; 58. The embracing rod; 552. The shrinking belt. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] The embodiment of the present invention provides a magnetic levitation bag inverting conveyor, which solves the problem that the existing bag inverting conveyor is difficult to adaptively adjust and control its inverting direction and posture during the material inverting process, which easily causes the inverting posture of the material bag to be unstable and cause the bag to get stuck or tilt and roll.

[0034] like Figures 1 to 3 As shown, in order to achieve smooth transportation of soft-package material packages, a preferred embodiment of the present invention proposes a magnetic levitation bag-turning conveyor, including a first conveying part 1 and a second conveying part 2, the second conveying part 2 is fixedly installed on one side of the first conveying part 1, the first conveying part 1 and the second conveying part 2 are both roller-type conveying structures, both ends of the conveying roller 3 are made of magnetic material, and the first conveying part 1 and the second conveying part 2 are both provided with a magnetic levitation component for driving the conveying roller 3, and further include a bag-turning frame 4.

[0035] The present invention uses magnetic suspension rollers as material bag conveying components. Through the action of magnetic force, the conveying rollers 3 provide appropriate buffering and shock absorbing capabilities during the transportation of the material bag, thereby achieving stable adjustment of the conveying posture of soft bag materials.

[0036] Furthermore, in order to realize the reverse bag operation, the posture of the material bag is adjusted, such as Figures 1 to 4As shown, a height axis 11 is fixed on the upper part of the first conveying part 1, a plurality of inverted packaging frames 4 are provided, and the plurality of inverted packaging frames 4 are arranged up and down and sequentially installed on the height axis 11, the distance between two adjacent inverted packaging frames 4 is adjustable, and an inverted packaging ring 5 is rotatably installed in each inverted packaging frame 4, and an outer ring surface of the inverted packaging ring 5 is provided with an outer gear ring 51, and a gear 41 meshing with the outer gear ring 51 is rotatably installed in the bottom inverted packaging frame 4 in the stack, an inverted packaging motor 12 is fixedly installed on the side wall of the first conveying part 1, and the output shaft of the inverted packaging motor 12 is fixedly connected to the gear 41, a plurality of fitting balls 42 are rotatably installed at the side wall of the inverted packaging frame 4, and the fitting balls 42 roll and fit on the surface of the outer gear ring 51, and the inverted packaging frames 4 are all "L"-shaped structures, and the inverted packaging frames 4 are open in the approach direction of the conveyed articles facing the first conveying part 1 and the away direction of the articles facing the second conveying part 2, and the inverted packaging ring 5 is an incomplete circular ring structure, and the notch direction of the inverted packaging ring 5 is consistent with the open direction of the inverted packaging frame 4.

[0037] First, according to the actual height of the material bag being transported, the spacing between the multiple inverted bag frames 4 is adjusted so that the multiple inverted bag frames 4 are arranged in sequence up and down on the height axis 11. At this time, the opening directions of the inverted bag frames 4 and the inverted bag rings 5 ​​are both toward the forward direction of the material bag on the first conveying part 1. When the first conveying part 1 transports the material bag to the predetermined position, the material bag enters through the open notch of the inverted bag frame 4 and stays. Subsequently, the inverted bag motor 12 is started to perform a forward rated operation, and then the inverted bag ring 5 is driven to rotate through the meshing action between the gear 41 and the outer gear ring 51, so that the notch of the inverted bag ring 5 is turned to the direction of the second conveying part 2. During this process, the material bag is located in the inverted bag frame 4 and rotates synchronously with the inverted bag ring 5, and is transferred from the top of the first conveying part 1 to the top of the second conveying part 2.

[0038] Furthermore, the surface of the material package loaded with items is often printed with a single-sided or double-layer logo with the commodity attributes of the material it contains. In order to improve the identification during the subsequent palletizing or transfer process, the consistency of the conveying direction of the material package before and after the inversion process needs to be improved. In order to achieve the stability of the material package during the inversion process and the consistency of the conveying direction, it is necessary to prevent deflection or rolling. Figure 5 , Figure 6 , Figure 8 and Fig. 9As shown, both ends of the inner ring surface of the inverted ring 5 in the diameter direction are fixedly installed with a bonding plate 52, and a tensioning shaft 53 is rotatably installed on the bonding plate 52. A bonding belt 54 is movably arranged in the inverted ring 5. The two ends of the bonding belt 54 slide through the bonding plates 52 on both sides of the inverted ring 5, and the two ends of the bonding belt 54 are respectively wound around the tensioning shafts 53 on both sides. The bonding belt 54 is an elastic tensile material, and an anti-strangulation sheet 53 is fixedly installed in the middle of the bonding belt 54. 41. A transition plate 43 is fixedly installed at the bottom of the inverted package frame 4 at the bottom of the stack. A transition groove 44 is opened in the middle of the plate surface of the transition plate 43. A push rod 45 is slidably installed in the transition groove 44. The push rod 45 is vertically upward and passes through the middle of multiple inverted package rings 5 ​​in sequence. The upper part of the push rod 45 is slidably fitted with the side wall of the anti-strangulation sheet 541. The bottom of the transition plate 43 is fixedly installed on the transition cylinder 46, and the telescopic end of the transition cylinder 46 is fixedly connected to the push rod 45.

[0039] In the initial state, the transition cylinder 46 does not work. At this time, the push rod 45 is at the end position of the transition groove 44. When the material bag moves into the bag-turning frame 4 under the conveying action of the first conveying part 1, the bottom of the material bag gradually slides to the upper surface of the transition plate 43. In this process, the side wall of the material bag contacts the bonding belt 54, and the bonding belt 54 is gradually tightened and deformed and contracted toward the inner side of the bag-turning ring 5 by the extrusion force. The bonding plate 52 arranged in the middle can increase the gap between the bonding belt 54 and the material bag without changing the deformation elastic force of the bonding belt 54. The contact surface between the two sides of the material bag is reduced, thereby reducing the local contact pressure, reducing the extent of the concave deformation caused by the compression of the packaging bag during the inverting process, and reducing the interference of the goods inside the material bag. By adjusting the number of winding turns of the bonding belt 54 on the tensioning shaft 53, the exposed length and elasticity of the bonding belt 54 can be adjusted, so that the bonding belt 54 can adapt to the changing extent of the outer packaging contour of the material bag after deformation and maintain appropriate tension, providing sufficient and stable support for the material bag to stay, and avoiding unnecessary swinging or deflection of the material bag during the inverting process.

[0040] Furthermore, in order to achieve a smooth transition of the material package during the bagging process, Figure 5 and Figure 8 As shown, the transition plate 43 is a thin plate-shaped hollow structure, and the transition plate 43 is located above the conveying roller 3, and the upper end surface of the transition plate 43 is provided with an air-permeable pad.

[0041] During operation, the end of the transition plate 43 facing the first conveying part 1 is a smooth plane structure inclined downward, so as to improve the smoothness of the material bag when it enters the upper surface position of the transition plate 43 from the first conveying part 1. The breathable pad cloth arranged on the transition plate 43 can increase the friction at the bottom of the material bag after the material bag enters and stays. At the same time, the internal cavity of the transition plate 43 is connected with the external exhaust pump assembly through the air pipe, so that negative pressure can be generated at the pad cloth position. At this time, if there are debris and floating dust in the material or environment on the surface of the material bag, the negative pressure can achieve the effect of dust removal and pollution reduction, thereby avoiding the transfer of stains and additional pollution during the inverted bag conveying process.

[0042] Furthermore, in order to achieve the consistency of the orientation of the material package before and after the package is turned over, Figure 5 , Figure 7 , Figure 8 and Fig.10 As shown, a telescopic frame 55 is slidably installed in the middle position of the circular ring of the inverted ring 5. The telescopic frame 55 is a "T"-shaped structure, and the "T"-shaped surface of the telescopic frame 55 faces the notch direction of the inverted ring 5. A compression spring 56 is connected between the telescopic frame 55 and the inverted ring 5, and the height of the telescopic frame 55 is located at the center position of the two adjacent pairs of anti-strangulation sheets 541. A wavy curved surface is provided on the side of the telescopic frame 55 facing the axial direction of the inverted ring 5, and the push rod 45 cooperates with the recessed part of its curved surface. An electromagnet 57 is fixedly installed in the middle of the inverted ring 5, and a permanent magnet block 551 magnetically matched with the electromagnet 57 is fixedly provided in the middle of the telescopic frame 55.

[0043] Under the initial condition, the electromagnet 57 does not work, and it maintains a separation state with the permanent magnet block 551. When the material bag enters the inner side of the inverted packaging ring 5 and moves a predetermined distance, the side wall of the material bag adheres to the top of the telescopic frame 55. The wavy curved surface can increase the contact area with the material bag during the contact with the material bag, and at the same time increase the friction of the contact surface. Subsequently, as the material bag continues to enter, it pushes the telescopic frame 55 to move synchronously and keep the permanent magnet block 551 and the electromagnet 57 in contact. At this time, the electromagnet 57 is started to work, and the adsorption property between the electromagnet 57 and the permanent magnet block 551 is maintained by controlling the direction of the current. Subsequently, in the process of the inverted packaging ring 5 driving the material bag to turn to inverted packaging, the material bag and the telescopic frame 55 are kept in a close contact state. At this time, the contact effect between the two can improve the steering consistency between the material bag and the inverted packaging ring 5, thereby improving the consistency of the inverted packaging direction after turning and the stability of the posture after inverted packaging. When the material bag is turned, the current direction is controlled to make the electric The magnet 57 and the permanent magnet block 551 maintain a repulsive property. At this time, under the action of the electromagnetic force and the deformation recovery elastic force of the compression spring 56, the telescopic frame 55 moves outward quickly, and pushes the upper part of the material bag to tilt away from the inverted packaging ring 5 during the movement. At this time, the bottom of the material bag remains in a stationary state due to the friction between it and the pad cloth. When the upper part of the material bag is tilted under the thrust, it tilts toward the second conveying part 2. Subsequently, the transition cylinder 46 is started to work, and the push rod 45 is pushed to move by the transition cylinder 46. Then, through the adhesion between the push rod 45 and the anti-strangulation sheet 541, the material bag is pushed to move as a whole toward the outside of the inverted packaging ring 5, and the material bag maintains a gradually tilting posture during the overall movement until it is completely tilted toward the second conveying part 2. Subsequently, under the conveying action of the second conveying part 2, the bottom of the material bag gradually separates from the transition plate 43. At this point, the inverted packaging operation of the material bag is completed, and the direction and posture of the inverted bag after the inverted bag are adjusted and controlled during the inverted packaging process to meet the subsequent grasping operation requirements.

[0044] Furthermore, when transporting large bags of materials, in order to achieve the stability adjustment of their stopping posture, such as Figure 5 , Figure 6 , Figure 8 and Fig. 9 As shown, both ends of the notch of the inverted ring 5 are hingedly mounted with embracing rods 58, a torsion spring is connected between the embracing rod 58 and the inverted ring 5, the end of the telescopic frame 55 is fixedly connected with a shrinkage belt 552, the other end of the shrinkage belt 552 is fixedly connected to the embracing rod 58 after sliding through the bonding plate 52, the embracing rod 58 is pointed to the outside of the inverted ring 5 along the tangent direction of the outer arc surface of the inverted ring 5, the embracing rod 58 is a tough structure, and the hinged part of the embracing rod 58 can rotate within an angle range of 0 to 75 degrees.

[0045] During operation, under the initial condition, the embracing rod 58 is directed toward the outside of the inverted packing ring 5 under the torsion force of the torsion spring, and the notch at the front of the inverted packing ring 5 is in an open state. When the material bag enters the inside of the inverted packing ring 5, along with the contraction of the telescopic frame 55, the embracing rod 58 is pulled by the contraction belt 552 to gradually deflect toward the inside of the inverted packing ring 5. In this process, the embracing rod 58 contacts the outer wall of the material bag and abuts against it. After the electromagnet 57 and the permanent magnet block 551 are attracted to each other, the deflection angle of the embracing rod 58 after rotation is also fixed. At this time, the fitting belt 54 is on the inside of the material bag. The embracing rod 58 is pressed against the material bag on the outside, and the left and right sides of the material bag are also in the surrounding space of the inverting ring 5. At this time, the material bag is subjected to the multiple surrounding and clamping effects and stays on the inner side of the inverting ring 5, so as to achieve the stability of the inverting direction and posture control when the heavy weight or large volume material bag is inverted. At the same time, it also improves the efficiency of pushing down the material bag during the inverting process and reduces the jamming of the conveyor operation. When the material bag is turned, along with the outward movement of the telescopic frame 55, the embracing rod 58 is opened synchronously to the outside, and then the material bag is transferred to the second conveying part 2.

[0046] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A magnetic suspension bag inverting conveyor, comprising a first conveying part (1) and a second conveying part (2), wherein the second conveying part (2) is fixedly mounted on one side of the first conveying part (1), characterized in that: The first conveying part (1) and the second conveying part (2) are both roller-type conveying structures, both ends of the conveying roller (3) are made of magnetic material, and the first conveying part (1) and the second conveying part (2) are both provided with a magnetic suspension component for driving the conveying roller (3), and further comprising: A bag-turning frame (4), wherein a height axis (11) is fixedly provided on the upper part of the first conveying part (1), a plurality of bag-turning frames (4) are provided, and the plurality of bag-turning frames (4) are arranged in sequence on the height axis (11), the spacing between two adjacent bag-turning frames (4) is adjustable, and a bag-turning ring (5) is rotatably installed in each bag-turning frame (4), an outer ring surface of the bag-turning ring (5) is provided with an outer gear ring (51), a gear (41) meshing with the outer gear ring (51) is rotatably installed in the bottom bag-turning frame (4) of the stack, a bag-turning motor (12) is fixedly installed on the side wall of the first conveying part (1), and the output shaft of the bag-turning motor (12) is fixedly connected to the gear (41), and a plurality of fitting balls (42) are rotatably installed on the side wall of the bag-turning frame (4), and the fitting balls (42) roll and fit on the surface of the outer gear ring (51); Both ends of the inner ring surface of the inverted ring (5) in the diameter direction are fixedly mounted with bonding plates (52), a tensioning shaft (53) is rotatably mounted on the bonding plate (52), a bonding belt (54) is movably arranged inside the inverted ring (5), and both ends of the bonding belt (54) slide through the bonding plates (52) on both sides of the inverted ring (5), and both ends of the bonding belt (54) are respectively wound around the tensioning shafts (53) on both sides; The bonding belt (54) is made of elastic tensile material, and an anti-strangulation sheet (541) is fixedly installed in the middle of the bonding belt (54). A transition plate (43) is fixedly installed at the bottom of the stacked bottom inverted packaging frame (4). A transition groove (44) is opened in the middle of the plate surface of the transition plate (43). A push rod (45) is slidably installed in the transition groove (44). The push rod (45) is vertically upward and passes through the middle of multiple inverted packaging rings (5) in sequence. The upper part of the push rod (45) is slidably fitted with the side wall of the anti-strangulation sheet (541). The bottom of the transition plate (43) is fixedly installed on the transition cylinder (46), and the telescopic end of the transition cylinder (46) is fixedly connected to the push rod (45).

2. According to the magnetic suspension bag inverting conveyor described in claim 1, it is characterized by: The inverted packaging frames (4) are all of an "L"-shaped structure, the inverted packaging frames (4) are open in a direction facing the first conveying part (1) in which the conveyed articles are approaching, and in a direction facing the second conveying part (2) in which the articles are moving away, the inverted packaging ring (5) is of an incomplete circular ring structure, and the direction of the notch of the inverted packaging ring (5) is consistent with the direction of the open side of the inverted packaging frame (4).

3. According to the magnetic suspension bag inverting conveyor as described in claim 2, it is characterized in that: The transition plate (43) is a thin plate-shaped hollow structure, and the transition plate (43) is located above the conveying roller (3), and an air-permeable pad is provided on the upper end surface of the transition plate (43).

4. According to the magnetic suspension bag inverting conveyor as described in claim 3, it is characterized in that: A telescopic frame (55) is slidably mounted in the middle of the circular ring of the inverted enveloping ring (5); the telescopic frame (55) is a "T"-shaped structure, and the "T"-shaped surface of the telescopic frame (55) faces the notch direction of the inverted enveloping ring (5); a compression spring (56) is connected between the telescopic frame (55) and the inverted enveloping ring (5), and the height of the telescopic frame (55) is located at the center of two adjacent pairs of anti-strangulation sheets (541).

5. A magnetic suspension bag inverting conveyor according to claim 4, characterized in that: A wavy curved surface is provided on one side of the telescopic frame (55) facing the axial direction of the inverted ring (5), and the push rod (45) is matched with a concave portion of the curved surface.

6. A magnetic suspension bag inverting conveyor according to claim 5, characterized in that: An electromagnet (57) is fixedly mounted in the middle of the inverted ring (5), and a permanent magnet block (551) that magnetically cooperates with the electromagnet (57) is fixedly arranged in the middle of the telescopic frame (55).

7. A magnetic suspension bag inverting conveyor according to claim 6, characterized in that: Both ends of the notch of the inverted wrapping ring (5) are hingedly mounted with embracing rods (58), a torsion spring is connected between the embracing rod (58) and the inverted wrapping ring (5), the end of the telescopic frame (55) is fixedly connected with a contraction belt (552), and the other end of the contraction belt (552) is fixedly connected to the embracing rod (58) after sliding through the bonding plate (52).

8. A magnetic suspension bag inverting conveyor according to claim 7, characterized in that: The embracing rods (58) are all directed toward the outside of the inverted enveloping ring (5) along the tangent direction of the outer arc surface of the inverted enveloping ring (5); the embracing rods (58) are of a tough structure; and the hinged portion of the embracing rods (58) can rotate within an angle range of 0 to 75 degrees.

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