Air expansion sleeve shaft structure facilitating large-width rim charge disassembly

Abstract

The invention discloses an air expansion sleeve shaft structure facilitating large-width rim charge disassembly, and relates to the technical field of lithium battery copper foil production, in particular to an air expansion sleeve shaft structure facilitating large-width rim charge disassembly, which comprises a shaft body, and an air expansion cylinder is arranged in the shaft body. According to the air expansion sleeve shaft structure convenient for disassembling the large-breadth rim charges, the air inflation channel can be opened or closed by simply pulling out the sealing plug and rotating the limiting bolt to turn over the anti-overflow plate, air inflation and deflation of the air bag are achieved, the external shaft groove in one side of the shaft body is connected with the output end of the servo motor, power output can be stably provided, and in the copper foil slitting process, the service life of the air bag is prolonged. The waste foil can be automatically unwound, inflated with the air bag, extrude the rubber layer and drive the supporting layer to expand along with automatic rotation of the shaft body, the inflation process of the air bag can be correspondingly adjusted according to the inner diameter specification of the paper core until the supporting layer is lined on the inner wall of the paper core, the paper core is rapidly fixed, and on the premise that the performance of the supporting layer is guaranteed, the production efficiency is improved. And the manufacturing cost of the shaft sleeve is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium - ion copper foil production, and particularly to an air - inflation sleeve shaft structure facilitating the disassembly of large - width edge materials. Background Art

[0002] Lithium - ion copper foil is a key basic material used in the manufacture of lithium - ion batteries. It is mainly composed of copper elements and is processed into a thin - foil material through specific processes, having good electrical conductivity and mechanical properties.

[0003] In the production of lithium - ion copper foil, the edge needs to be slit. One reason is that there are relatively large defects in the edges of the as - produced foil, and the load of the edge - cutting machine is limited; the other reason is that the current order widths are relatively small, so a part of the produced material needs to be cut off to meet the processing specifications. Currently, in order not to damage the copper foil itself, most use manual slitting. Generally, after determining the specifications of the slit edge material, at the slitting point, an inclined cut is made at the end face of the wound foil, and then the entire - width broken foil is torn, and the operation is repeated, cutting layer by layer inward until the copper foil is completely peeled off.

[0004] However, currently: 1. Most of the existing methods use manual slitting, which easily causes the paper core of the wound copper foil to loosen when rotating on the reel, affecting the slitting accuracy of the copper foil. Moreover, when dealing with thick rolls or large - width rolls, manual slitting is time - consuming and labor - intensive, slowing down the turnover speed of the reel and the core; 2. It may lead to mistakes in the slitting specifications at the edge. If the reel needs to be replaced according to the specifications of the paper core, it will undoubtedly increase the workload; 3. After long - term slitting, it is extremely easy to cause wear on the edge of the reel by the cutting parts, and then the reel needs to be replaced regularly, increasing the usage cost. However, this operation method cannot well meet people's usage requirements and has other disadvantages. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides an air - inflation sleeve shaft structure facilitating the disassembly of large - width edge materials, which solves the problems mentioned in the above background art, such as the easy loosening of the paper core of the wound copper foil when rotating on the reel, the time - consuming and labor - intensive manual slitting when dealing with thick rolls or large - width rolls, the slowdown of the turnover speed of the reel and the core, and the easy wear on the edge of the reel by the cutting parts after long - term slitting.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: an air - inflation sleeve shaft structure facilitating the disassembly of large - width edge materials, including a shaft body. An air - inflation cylinder is arranged inside the shaft body. Rubber layers are equidistantly distributed in a circular pattern on the outer wall of the shaft body. A support layer is adhesively connected to the surface of the rubber layer. An inner tube is fixedly connected inside the air - inflation cylinder. An outer tube is fixedly connected to the top of the air - inflation cylinder. The bottom of the outer tube is fixedly connected to and communicates with the top of the inner tube. Air bags are equidistantly distributed in a circular pattern on the outer wall of the air - inflation cylinder.

[0007] Optionally, the top of the shaft body is connected with a top plate by bolts, an external shaft groove is formed at the center of the bottom of the shaft body, and an internal shaft head is integrally formed at the center of the inner bottom wall of the shaft body.

[0008] Optionally, the diameter of the air-bloated cylinder is the same as the inner diameter of the shaft body, both the air-bloated cylinder and the shaft body are made of high-hardness steel, and a through hole for threaded connection with the outer wall of the internal shaft head is formed at the center of the bottom of the air-bloated cylinder.

[0009] Optionally, the outer wall of the shaft body is provided with notches in an equiangular distribution of 45°, the rubber layer is tightly fixed at the notches, the support layer is tightly glued to the outside of the rubber layer, and the airbag is adjacent to the inner side of the rubber layer.

[0010] Optionally, the support layer is made of high-hardness corrugated paper, and wavy patterns are distributed on the surface of the support layer.

[0011] Optionally, cavities for inflating and deflating the airbag are formed at the positions of the air-bloated cylinder corresponding to the airbag, one end of each cavity communicates with the position where the built-in tube is located, and the airbags are all connected to the built-in tube through branch pipes arranged on one side thereof. The branch pipes on one side of the airbag and the built-in tube are both made of silica gel hoses.

[0012] Optionally, the external tube is made of metal, a sealing plug is inserted and connected to the top of the external tube, a spillage prevention plate is rotatably connected to the inner wall of the external tube, and a limit bolt is threadedly connected to one side of the outer wall of the external tube.

[0013] Optionally, a through hole for threaded connection with the limit bolt is formed at one end of the outer wall of the spillage prevention plate, the spillage prevention plate forms a flipping structure inside the external tube through a handle arranged at the corresponding position on the outer wall of the external tube, and the spillage prevention plate is threadedly connected to the external tube through the limit bolt.

[0014] Optionally, an L-shaped dial block is fixedly connected to the top of the air-bloated cylinder. The dial blocks are symmetrically distributed about the axis of the air-bloated cylinder and are respectively located at both ends of the outer wall of the external tube. At the same time, there is a gap between the dial block and the outer wall of the external tube.

[0015] Optionally, a circular through hole for movably connecting the external tube is formed through the center of the top plate, and a long strip-shaped slender notch for movably connecting one side handle of the spillage prevention plate is formed at one end of the circular through hole.

[0016] The present invention provides an air-bloated sleeve shaft structure convenient for disassembling wide-edge materials, and has the following beneficial effects:

[0017] The air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials. Both the shaft body and the air-expansion cylinder are made of high-hardness steel. And the diameter of the air-expansion cylinder is the same as the inner diameter of the shaft body, enabling them to fit tightly and form a stable overall structure, endowing the shaft sleeve with excellent strength and rigidity, capable of withstanding large pressures and loads, effectively coping with the pressure generated by the expansion of the airbag during the air-expansion process and the external forces exerted by the paper core and copper foil during operation. At the same time, notches are opened on the outer wall of the shaft body at an equal angle of 45°. The tightly fixed rubber layer and the support layer glued on the outside form a uniformly stressed structure, which can firmly fix the paper core and prevent it from loosening or displacing during rotation, providing a stable and reliable support for copper foil slitting and ensuring the slitting accuracy and quality.

[0018] For the air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials, by simply pulling out the sealing plug and rotating the limit bolt to flip the overflow prevention plate, the inflation channel can be opened or closed, realizing the control of air inflation and deflation of the airbag. The external shaft groove on one side of the shaft body is connected to the output end of the servo motor, which can stably provide power output, enabling the shaft body to rotate steadily at a set speed. During the copper foil slitting process, the waste foil can be automatically unrolled along with the automatic rotation of the shaft body, eliminating the cumbersome operation of layer-by-layer peeling by the staff, greatly reducing the operation time and labor intensity, and significantly improving the work efficiency.

[0019] For the air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials, the top plate is connected to the shaft body by bolts, and the air-expansion cylinder is connected to the inner connecting shaft head by threads, making the maintenance, repair, or replacement of internal components simple and easy. At the same time, the air-expansion cylinder and the airbag adopt a modular design. When a certain component is damaged, only the corresponding module needs to be disassembled and replaced separately, without replacing the entire shaft sleeve, greatly reducing the maintenance cost and time cost. In addition, the support layer uses high-hardness corrugated paper with a lower cost, effectively reducing the manufacturing cost of the shaft sleeve while ensuring performance.

[0020] For the air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials, the sealing plug, overflow prevention plate, and limit bolt on the external pipe cooperate with each other to accurately control the gas flow and the gas content inside the airbag. The sealing plug can effectively prevent gas leakage and ensure the stability of the air-expansion effect; the limit bolt can firmly fix the overflow prevention plate and prevent it from accidentally rotating during operation, ensuring the stability of the gas channel state. The operator can easily lock and unlock the overflow prevention plate by rotating the limit bolt, thereby precisely controlling the opening and closing of the channel between the internal pipe and the external pipe, ensuring the accuracy and stability of the airbag inflation and deflation processes, making the air-expansion sleeve shaft structure more reliable during operation, and reducing the risk of failures caused by component loosening or gas leakage.

[0021] The air-inflating sleeve shaft structure is convenient for disassembly of large-width edge materials. The symmetrically distributed L-shaped shifting blocks on the top of the air-inflating cylinder provide a good fulcrum for its disassembly and installation. The circular through-holes and slender slots on the top plate provide convenience for inflation and deflation and avoid interference caused by the position of the handle of the overflow prevention plate during disassembly. In addition, the shaft body provides two diameter specifications of 300mm and 650mm, which can be selected according to actual needs. The inflation process of the airbag can be adjusted according to the inner diameter specification of the paper core. The supporting layer is lined on the inner wall of the paper core to firmly fix the paper core to prevent loosening and displacement when the paper core is rotated. This quick response and fixed paper core method can ensure slitting accuracy, so that the air-inflating sleeve shaft structure has good applicability and versatility, and can meet different working conditions and production requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the top view of the shaft body in the invention;

[0023] Figure 2 It is a bottom view structural diagram of the shaft body in the invention;

[0024] Figure 3 It is a schematic diagram of the internal structure of the shaft body in the invention;

[0025] Figure 4 It is a schematic diagram of the top view of the structure of the air inflation cylinder in the invention;

[0026] Figure 5 It is a bottom view of the structure of the air inflation cylinder in the invention;

[0027] Figure 6 It is a schematic diagram of the internal structure of the air inflation cylinder in the invention;

[0028] Figure 7 It is a schematic diagram of the internal structure of the external tube in the invention.

[0029] In the figure: 1. shaft body; 101. top plate; 102. external shaft groove; 103. internal shaft head; 2. inflation cylinder; 3. rubber layer; 4. supporting layer; 5. internal tube; 6. external tube; 601. sealing plug; 602. overflow plate; 603. limit bolt; 7. airbag. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below 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, rather than all the embodiments.

[0031] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figures 1 to 7 , the present invention provides a technical solution: an air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials, including a shaft body 1, an air-expansion cylinder 2 is arranged inside the shaft body 1, rubber layers 3 are distributed annularly at equal intervals on the outer wall of the shaft body 1, a support layer 4 is adhesively connected to the surface of the rubber layer 3, an inner tube 5 is fixedly connected inside the air-expansion cylinder 2, an outer tube 6 is fixedly connected to the top of the air-expansion cylinder 2, the bottom of the outer tube 6 is fixedly connected to and communicates with the top of the inner tube 5, and air bags 7 are distributed annularly at equal intervals on the outer wall of the air-expansion cylinder 2.

[0034] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the top of the shaft body 1 is bolted to a top plate 101, and an external shaft groove 102 is opened at the center of the bottom of the shaft body 1, and an internal shaft head 103 is integrally formed at the center of the inner bottom wall of the shaft body 1; during equipment assembly, the top plate 101 can be quickly fixed to the shaft body 1 by bolts; and when it is necessary to maintain, repair or replace the components inside the shaft body 1, only need to unscrew the bolts, and then the top plate 101 can be easily removed, and the external shaft groove 102 at the bottom of the shaft body 1 can be conveniently connected to the driving end to achieve efficient power transmission.

[0035] In this embodiment, as Figure 2 and Figure 3As shown, the diameter of the air cylinder 2 is consistent with the inner diameter of the shaft body 1. Both the air cylinder 2 and the shaft body 1 are made of high-hardness steel. A through hole for threaded connection with the outer wall of the inner connecting shaft head 103 is provided at the center of the bottom of the air cylinder 2. The diameter of the air cylinder 2 being consistent with the inner diameter of the shaft body 1 enables the air cylinder 2 to be tightly installed inside the shaft body 1, forming a stable overall structure. The materials of the two have excellent strength and rigidity, can withstand large pressures and loads, effectively bear the external pressure, and ensure the stable operation of the equipment under heavy loads. Furthermore, when the airbag 7 is inflated, it can function stably, squeeze the rubber layer 3, and realize the expansion of the rubber layer 3 driving the support layer 4. The threaded connection between the center of the bottom of the air cylinder 2 and the outer wall of the inner connecting shaft head 103 makes the installation and disassembly of the air cylinder 2 relatively simple, improving the maintainability of the equipment.

[0036] In this embodiment, as Figure 1 , Figure 2 and Figure 3 shown, the outer wall of the shaft body 1 is provided with notches in an equiangular distribution of 45°. The rubber layer 3 is tightly fixed at the notches, and the support layer 4 is tightly glued to the outside of the rubber layer 3. At the same time, the airbag 7 is adjacent to the inner side of the rubber layer 3. When the airbag 7 is inflated and expands to squeeze the rubber layer 3, the force can be evenly transmitted to the rubber layer 3 and the outer support layer 4, so that the support layer 4 is in uniform contact with the inner wall of the paper core and generates a stable frictional force, firmly fixing the paper core on the shaft body 1. The inflation process of the airbag 7 can be adjusted according to the inner diameter specification of the paper core, ensuring the stability and reliability of the paper core fixation, as well as the beneficial effect of rapid response. Moreover, the rubber layer 3 is tightly fixed at the notches. The rubber material has good elasticity and flexibility, can expand outward with the inflation of the airbag 7, and at the same time evenly transmits the force to the support layer 4. It not only plays a role in transmitting the inflation force of the airbag 7, but also increases the connection firmness between the shaft body 1 and the support layer 4, thereby realizing the sealing property, being able to better withstand external forces and maintain its stable position, enabling the shaft body 1, the rubber layer 3, and the support layer 4 to form an integral whole, jointly providing stable support and fixation for the paper core, ensuring the smooth progress of the air inflation process, enabling the inflation effect of the airbag 7 to be effectively converted into the fixing force for the paper core, improving the working efficiency and performance of the air inflation sleeve shaft structure, and ensuring the smooth progress of the air inflation process.

[0037] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, the support layer 4 is made of high-hardness corrugated paper, and the surface of the support layer 4 is distributed with wavy patterns; when the airbag 7 is inflated and expands to squeeze the rubber layer 3, the support layer 4 is driven to expand, and the inflation process of the airbag 7 can be adjusted according to the specifications of the paper core. The wavy patterns increase the contact area between the support layer 4 and the inner wall of the paper core, significantly increasing the frictional force between the two. This larger frictional force can effectively prevent the paper core from loosening or displacing during rotation, ensuring the stability and accuracy of the copper foil slitting process, and avoiding errors in the slitting specifications at the edges due to the movement of the paper core. The high-hardness corrugated paper itself has certain elasticity and buffering performance, and the wavy patterns further enhance this buffering effect. In terms of the current process method, when slitting the edge materials, it is extremely easy to cause a burden on the surface loss of the reel. Compared with some expensive metal materials, the cost of high-hardness corrugated paper is lower. Using high-hardness corrugated paper as the material for the support layer 4 can effectively reduce the wear degree of the shaft body 1 itself on the premise of ensuring performance, thereby effectively reducing the manufacturing cost.

[0038] In this embodiment, as Figure 6 shown, at the positions where the air chucks 2 correspond to the airbags 7, cavities for charging and discharging the airbags 7 are opened, and one end of each cavity communicates with the position where the built-in tube 5 is located. The airbags 7 are all connected to the built-in tube 5 through the branch pipes provided on one side thereof. The branch pipes on one side of the airbags 7 and the built-in tube 5 are both made of silicone hoses. The charging and discharging cavities opened at the positions where the air chucks 2 correspond to the airbags 7 and communicating with the built-in tube 5 can enable gas to quickly and evenly enter or exit each airbag 7, ensuring that multiple airbags 7 can perform charging and discharging operations simultaneously, greatly improving the efficiency of inflation and deflation, reducing the waiting time, and enhancing the working efficiency of the equipment. The branch pipes and the built-in tube 5 made of silicone hoses can adapt to the shape changes during the inflation and contraction processes of the airbags 7 and will not be damaged due to excessive bending or stretching, ensuring the stability of gas transmission.

[0039] In this embodiment, as Figure 7 shown, the outer tube 6 is made of metal material, and a sealing plug 601 is inserted and connected to the top of the outer tube 6. A spillage-preventing plate 602 is rotatably connected to the inner wall of the outer tube 6, and a limit bolt 603 is threadedly connected to one side of the outer wall of the outer tube 6. The sealing plug 601 can effectively prevent gas from leaking from the top of the outer tube 6, ensuring the stability of the internal gas content after the airbag 7 is inflated and guaranteeing the inflation effect. The threadedly connected limit bolt 603 can firmly fix the spillage-preventing plate 602, preventing it from accidentally rotating due to gas pressure or other external forces during operation, ensuring the stability of the gas passage state, making the air chuck shaft structure more reliable during operation, and reducing the risk of failures caused by component loosening.

[0040] In this embodiment, as Figure 7As shown, a through hole for threaded connection with the limit bolt 603 is provided at one end of the outer wall of the anti-overflow plate 602, and the anti-overflow plate 602 forms a flip structure inside the external tube 6 through a handle arranged at a corresponding position on the outer wall of the external tube 6, and the anti-overflow plate 602 is threadedly connected to the external tube 6 through the limit bolt 603; the anti-overflow plate 602 and the limit bolt 603 are threadedly connected, and the operator can easily lock and unlock the anti-overflow plate 602 by rotating the limit bolt 603, thereby accurately controlling the opening and closing state of the channel between the internal tube 5 and the external tube 6. When the airbag 7 is inflated, the anti-overflow plate 602 is opened to ensure smooth entry of gas; after inflation is completed, the anti-overflow plate 602 is closed to effectively prevent gas leakage, ensure the stable operation of the inflation system, and ensure the stability and accuracy of the gas content inside the airbag 7 as much as possible.

[0041] In this embodiment, Figure 3 As shown, an L-shaped shifting block is fixedly connected to the top of the gas inflation cylinder 2, and the shifting blocks are symmetrically distributed about the axis of the gas inflation cylinder 2, and are respectively located at both ends of the outer wall of the external tube 6, and there is a gap between the shifting blocks and the outer wall of the external tube 6; the symmetrically distributed L-shaped shifting blocks provide a good fulcrum for the disassembly and installation of the gas inflation cylinder 2, and there is a gap between the shifting blocks and the outer wall of the external tube 6, which effectively avoids interference with the external tube 6 during the operation of the gas inflation cylinder 2, and reduces the risk of damage caused by collision or friction between components.

[0042] In this embodiment, Figure 3 As shown, a circular through hole for movably connecting the external tube 6 is formed through the axis of the top plate 101, and an elongated slender slot for movably connecting the handle on one side of the anti-overflow plate 602 is formed at one end of the circular through hole; the circular through hole at the axis of the top plate 101 provides convenience for inflation and deflation, and the elongated slender slot at one end of the circular through hole on the top plate 101 is used for movably connecting the handle on one side of the anti-overflow plate 602, so that during subsequent disassembly, the disassembly of the top plate 101 will not be restricted due to the position of the handle of the anti-overflow plate 602. At the same time, the top plate 101 ensures the installation position of the inflation cylinder 2, and the independent components of the inflation cylinder 2 and the airbag 7 can realize modular characteristics, and only the corresponding modules need to be disassembled and replaced separately, which greatly reduces the maintenance cost and time cost.

[0043] In summary, the inflatable sleeve shaft structure is convenient for disassembly of large wide edge materials. When in use, the shaft body 1 adopts a high-hardness steel structure with two diameter specifications of 300mm and 650mm, replacing the traditional reel sleeved in the paper core. The external shaft groove 102 on one side of the shaft body 1 is installed with the output end of the servo motor to obtain power output. Then, the paper core used for winding the copper foil is sleeved on the outside of the shaft body 1. The shaft body 1 can provide effective load and support for the paper core, open the inflation channel, pull out the sealing plug 601, rotate the limit bolt 603, so that the shaft head of the limit bolt 603 is separated from the threaded through hole of the overflow plate 602, and use the handle on the outside of the external tube 6 to rotate the overflow plate 602 to make it flip 90°, so that the channel between the internal tube 5 and the external tube 6 is connected. , start the external air pump, air enters through the through hole on the top of the external tube 6, flows into the internal tube 5 through the external tube 6, and then gradually enters the airbag 7 through the branch tube connected to the internal tube 5. After the airbag 7 is inflated, it expands and squeezes the rubber layer 3 adjacent to it. The rubber layer 3 expands outward after being squeezed, and at the same time drives the support layer 4 glued to it to open. The support layer 4 is made of high-hardness corrugated paper, and the wavy texture on its surface further increases the friction with the inner wall of the paper core, thereby firmly fixing the paper core on the shaft 1, avoiding loosening and axial displacement of the paper core during rotation during the subsequent copper foil slitting, and preventing errors in the edge slitting specifications. After the inflation is completed, turn the handle of the external tube 6 connected to the overflow prevention plate 602 to flip the overflow prevention plate 602 again, and close the internal tube. 5 and the channel between the external tube 6, reversely rotate the limit bolt 603 to make its shaft head re-fix the connecting through hole between the overflow plate 602 and the external tube 6, then take out the external inflation port connected to the top of the external tube 6, and finally reinsert the sealing plug 601 to prevent air leakage. After the paper core wrapped with copper foil is fixed through the shaft body 1, with the help of the slitting equipment, the cutting knife is moved to the end position to be processed, and the power is started. The shaft body 1 rotates steadily according to the speed of the servo motor. The slitting equipment slits the surface of the copper foil edge material rotating on the outer wall of the shaft body 1. During the slitting process, the waste foil is automatically unwound when the shaft body 1 rotates automatically, achieving a process of cutting and unwinding layer by layer, avoiding the subsequent staff from peeling layer by layer. After the slitting work is completed, pull out The sealing plug 601 is removed and the limiting bolt 603 is rotated to make the overflow plate 602 lose its fixation and flip over, and the air in the airbag 7 is discharged through the through hole on the top of the external tube 6. The airbag 7 shrinks, and the rubber layer 3 and the supporting layer 4 return to their original state. At this time, the paper core can be easily taken out from the shaft body 1, and the inflation tube 2 is a detachable structure. When the airbag 7 is damaged, the bolts between the top plate 101 and the shaft body 1 are removed. At the same time, the limiting bolt 603 is rotated to allow the overflow plate 602 to flip over. After the overflow plate 602 is flipped over, the top plate 101 will not be interfered by the handle position when it is taken out, and with the help of the shifting block set on the top of the inflation tube 2, the shifting block provides a gripping point for the disassembly of the inflation tube 2, and the inflation tube 2 is separated from the internal shaft head 103 by rotation.

[0044] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. An air-expansion sleeve shaft structure facilitating the disassembly of wide-edge materials, comprising a shaft body (1), characterized in that: Inside the shaft body (1), an air bladder cylinder (2) is provided. The outer wall of the shaft body (1) is annularly distributed with rubber layers (3) at equal distances. The surface of the rubber layer (3) is adhesively connected with a support layer (4). Inside the air bladder cylinder (2), an inner tube (5) is fixedly connected. The top of the air bladder cylinder (2) is fixedly connected with an outer tube (6). The bottom of the outer tube (6) is fixedly connected and communicated with the top of the inner tube (5). The outer wall of the air bladder cylinder (2) is annularly distributed with air bags (7) at equal distances.

2. The air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials according to claim 1 is characterized in that: The top of the shaft body (1) is bolted to a top plate (101). At the center of the bottom of the shaft body (1), an external shaft groove (102) is opened. And at the center of the inner bottom wall of the shaft body (1), an internal shaft head (103) is integrally formed.

3. The air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials according to claim 1 is characterized in that: The diameter of the air bladder cylinder (2) is the same as the inner diameter of the shaft body (1). Both the air bladder cylinder (2) and the shaft body (1) are made of high-hardness steel. And at the center of the bottom of the air bladder cylinder (2), a through hole is opened for threaded connection with the outer wall of the internal shaft head (103).

4. The air-expansion sleeve shaft structure facilitating the disassembly of wide-edge materials according to claim 1 is characterized in that: The outer wall of the shaft body (1) is provided with notches in an equiangular distribution manner at 45°. The rubber layer (3) is tightly fixed at the notches. And the support layer (4) is tightly adhesively connected to the outside of the rubber layer (3). At the same time, the air bag (7) is adjacent to the inner side of the rubber layer (3).

5. A pneumatic expansion sleeve shaft structure facilitating the disassembly of wide-edge materials according to claim 1, characterized in that: The support layer (4) is made of high-hardness corrugated paper, and wavy patterns are distributed on the surface of the support layer (4).

6. The air-expanding sleeve shaft structure for facilitating the disassembly of wide-edge materials according to claim 1, characterized in that: At the positions where the air bladder cylinder (2) corresponds to the distribution of the air bags (7), cavities for inflating and deflating the air bags (7) are opened. One end of each cavity is communicated with the position where the inner tube (5) is located. And the air bags (7) are all connected to the inner tube (5) through branch pipes arranged on one side of them. The branch pipes on one side of the air bags (7) and the inner tube (5) are both made of silica gel hoses.

7. The air-expansion sleeve shaft structure for facilitating the disassembly of wide-edge materials according to claim 1, wherein: The outer tube (6) is made of metal. A sealing plug (601) is inserted and connected to the top of the outer tube (6). A spillage prevention plate (602) is rotatably connected to the inner wall of the outer tube (6). And a limit bolt (603) is threadedly connected to one side of the outer wall of the outer tube (6).

8. A pneumatic expansion sleeve shaft structure facilitating the disassembly of wide-edge materials according to claim 7, characterized in that: At the position of the outer wall of the spillage prevention plate (602) corresponding to the limit bolt (603), a through hole for threaded connection with it is opened. And the spillage prevention plate (602) forms a flipping structure inside the outer tube (6) through a handle arranged at the corresponding position on the outer wall of the outer tube (6). And the spillage prevention plate (602) is threadedly connected to the outer tube (6) through the limit bolt (603).

9. The air-expansion sleeve shaft structure facilitating the disassembly of large-width edge materials according to claim 1, characterized in that: The top of the air bladder cylinder (2) is fixedly connected with L-shaped blocks. The blocks are symmetrically distributed about the axis of the air bladder cylinder (2) and are respectively located at both ends of the outer wall of the outer tube (6). At the same time, there is a gap between the blocks and the outer wall of the outer tube (6).

10. The air-expansion sleeve shaft structure for facilitating the disassembly of large-width edge materials according to claim 2, wherein: A circular through hole for movably connecting the outer tube (6) is opened through the center of the top plate (101). And at one end of the circular through hole, a long and narrow slot for movably connecting one side handle of the spillage prevention plate (602) is opened.

Images