A roller sleeve replacement tool for a calender

Abstract

The present invention provides a roller sleeve replacement tool for a calender, which is used to transport the roller sleeve to a position corresponding to the rotating shaft of the calender, or to transport the roller sleeve removed from the rotating shaft to other target positions. The roller sleeve replacement tool comprises: a frame, a lifting device and a tray for carrying the roller sleeve; the lifting device is fixedly installed on the frame, and the tray is horizontally arranged and connected to the lifting device, so that the lifting device can drive the tray to drive the roller sleeve to reciprocate in the vertical direction. The present invention has the advantages of being able to reduce the labor intensity of operators, improve production efficiency, and at the same time reduce the probability of production accidents, which is conducive to safe production.

Description

Technical Field

[0001] The invention relates to the technical field of tire production, and in particular to a roller sleeve replacement tool for a calender. Background Art

[0002] The radial all-steel tubeless inner liner adopts double-layer composite technology. The two inner liner layers are the transition layer and the airtight layer. In the process of making the transition layer and / or the airtight layer, a calender is required to press the process shape on the surface of the transition layer and / or the airtight layer. In order to meet different needs, the process shapes pressed on the surface of the transition layer and / or the airtight layer are also different. In this way, the roller sleeve of the pressing roller in the calender needs to be replaced to meet different work requirements. At present, the replacement operation of the roller sleeve is completed by manually adjusting the position of the roller sleeve. Due to the large weight of the roller sleeve (about half a ton), the manual adjustment of the position of the roller sleeve is not only labor-intensive and low in work efficiency, but also prone to production accidents and poor safety. Summary of the invention

[0003] The purpose of the present invention is to provide a roller sleeve replacement tool for a calender, which can reduce the labor intensity of operators, improve production efficiency, and also reduce the probability of production accidents, which is beneficial to safe production.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A roller sleeve replacement tool for a calender, used to transport the roller sleeve to a position corresponding to the rotating shaft of the calender, or to transport the roller sleeve removed from the rotating shaft to other target positions, the roller sleeve replacement tool comprising: a frame, a lifting device and a tray for carrying the roller sleeve;

[0006] The lifting device is fixedly mounted on the frame, and the tray is horizontally arranged and connected to the lifting device, so that the lifting device can drive the tray to drive the roller sleeve to reciprocate in the vertical direction.

[0007] Preferably, it also includes a first supporting plate, a rotating body and a mounting component;

[0008] The mounting component is fixedly connected to the upper surface of the tray, and a first mounting hole and a second mounting hole are provided on the mounting component. The first mounting hole and the second mounting hole are both cylindrical, and the axes of the first mounting hole and the second mounting hole are perpendicular to the upper surface of the tray. The first mounting hole and the second mounting hole are arranged in sequence from top to bottom and are connected to each other. The diameter of the first mounting hole is smaller than the diameter of the second mounting hole. The first mounting hole forms an opening on the upper surface of the mounting component;

[0009] The rotating body includes a first rotating part and a second rotating part, the first rotating part and the second rotating part are both cylindrical, and the axes of the two coincide, the diameter of the first rotating part is smaller than the diameter of the first mounting hole, the diameter of the second rotating part is larger than the diameter of the first mounting hole and smaller than the diameter of the second mounting hole, the second rotating part is arranged in the second mounting hole, and the first rotating part passes through the first mounting hole and extends from the opening to the outside of the first mounting hole;

[0010] The first supporting plate is placed horizontally, and one end of the first rotating part extending from the opening is fixedly connected to the lower surface of the first supporting plate. The roller sleeve can be placed on the upper surface of the first supporting plate, and the rotating body can rotate around the axis of the first rotating part to drive the roller sleeve to rotate through the first supporting plate.

[0011] Preferably, it also includes a positioning screw;

[0012] A positioning screw hole matching the positioning screw is arranged on the side wall of the second mounting hole. The positioning screw is threadedly connected in the positioning screw hole and can abut against the second rotating part.

[0013] Preferably, the number of the positioning screw holes is at least two, and the at least two positioning screw holes are evenly arranged along the circumference of the second mounting hole. The number of the positioning screws is equal to the number of the positioning screw holes and corresponds one to one.

[0014] Preferably, it further comprises a first rail and a second supporting plate;

[0015] The first track extends horizontally and is fixedly connected to the upper surface of the first supporting plate. The second supporting plate is horizontal, and the roller sleeve can be placed on the upper surface of the second supporting plate. A first running wheel is provided on the lower surface of the second supporting plate, so that the second supporting plate can drive the roller sleeve to move along the track through the first running wheel.

[0016] Preferably, it also includes a second track and a third supporting plate;

[0017] The second track extends in a horizontal direction, and its extension direction is perpendicular to the extension direction of the first track. The second track is fixedly connected to the upper surface of the second supporting plate. The third supporting plate is placed horizontally. The roller sleeve can be placed on the upper surface of the third supporting plate. A second running wheel is provided on the lower surface of the third supporting plate, so that the third supporting plate can drive the roller sleeve to move along the track through the second running wheel.

[0018] Preferably, a bearing component is provided on the upper surface of the third supporting plate;

[0019] The bearing component includes a column and a bearing shaft, the column is vertically arranged and the lower end is fixedly connected to the upper surface of the third supporting plate, the bearing shaft is cylindrical with a diameter smaller than the inner diameter of the roller sleeve, the axis of the bearing shaft is horizontal, and one end is fixedly connected to the top of the column, and the other end is in a free state, so that the roller sleeve can be sleeved onto the bearing shaft through the free end of the bearing shaft.

[0020] Preferably, the frame includes a crossbeam and legs;

[0021] The crossbeam is arranged horizontally, and the legs are arranged vertically. There are two legs, and the top ends of the two legs are respectively fixedly connected to the two ends of the extension direction of the crossbeam, so that the crossbeam and the two legs form a door shape. The lifting device is fixedly installed on the crossbeam, and universal wheels are arranged at the bottom ends of the two legs.

[0022] Preferably, it also includes a connecting component and a limiting component;

[0023] The connecting component is fixedly connected to the tray, and the lifting device is drivingly connected to the connecting component, so that the lifting device can drive the connecting component to drive the tray to reciprocate in the vertical direction, and a first limiting groove is provided on the connecting component;

[0024] The limiting component is fixedly connected to the tray, and a second limiting groove corresponding to the first limiting groove is arranged on the limiting component, and the first limiting groove and the second limiting groove together constitute a limiting hole;

[0025] The frame body is provided with a guide rod fixedly connected to the cross beam, and the guide rod is vertically arranged and penetrates the limiting hole, so that the tray can reciprocate in the vertical direction along the guide rod.

[0026] Preferably, the number of the lifting devices is two, and the two lifting devices are arranged at intervals along the extension direction of the crossbeam;

[0027] And / or, the number of the guide rods is two, and the two guide rods are arranged at intervals along the extension direction of the crossbeam.

[0028] The roller sleeve replacement tooling of the calender of the present invention is fixedly installed on the frame by adopting the lifting device, and the pallet is horizontally arranged and connected to the lifting device, so that the lifting device can drive the pallet to drive the roller sleeve to reciprocate in the vertical direction. This technical solution can reduce the labor intensity of operators, improve production efficiency, and at the same time reduce the probability of production accidents, which is conducive to safe production. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an embodiment of a roller sleeve replacement tool for a calender according to the present invention;

[0030] Figure 2 for Figure 1 The enlarged schematic diagram of the middle part I;

[0031] Figure 3 for Figure 2 A-A cross-sectional diagram in FIG. 1 (this diagram shows the corresponding state of the roller sleeve and the rotating shaft of the calender);

[0032] Figure 4 for Figure 2 Schematic diagram of the B-B section in FIG.

[0033] Figure 5 for Figure 2 Schematic diagram of the C-C section in FIG.

[0034] Figure 6 for Figure 1 Schematic diagram of the D-D section.

[0035] In the figure: 1-roller sleeve; 2-rotating shaft; 3-frame; 31-lifting device; 32-crossbeam; 33-leg; 34-universal wheel; 35-guide rod; 4-tray; 5-first supporting plate; 51-rotating body; 52-first rotating part; 53-second rotating part; 54-mounting fixture; 55-first mounting hole; 56-second mounting hole; 57-positioning screw; 58-positioning screw hole; 6-second supporting plate; 61-first track; 62-first running wheel; 63-third supporting plate; 64-second track; 65-second running wheel; 7-bearing component; 71-column; 72-bearing shaft; 8-connecting component; 81-first limiting groove; 9-limiting component; 91-second limiting groove. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the roller sleeve replacement tooling of the calender of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] like Figure 3 As shown, a roller sleeve replacement tool for a calender is used to transport the roller sleeve 1 to a position corresponding to the rotating shaft 2 of the calender, or to transport the roller sleeve 1 removed from the rotating shaft 2 to other target positions.

[0038] like Figure 1As shown, the roller sleeve replacement tooling of the calender in this embodiment includes: a frame 3, a lifting device 31 and a tray 4 for carrying the roller sleeve 1. The lifting device 31 is fixedly installed on the frame 3, and the tray 4 is horizontally arranged and connected to the lifting device 31, so that the lifting device 31 can drive the tray 4 to drive the roller sleeve 1 to reciprocate in the vertical direction. In the specific production, the lifting device 31 can adopt a linear drive device such as a cylinder or an electric push rod. It should be noted that in actual work, the axis of the rotating shaft extends in the horizontal direction, so the axis of the roller sleeve carried by the tray 4 should extend in the horizontal direction. During installation, the roller sleeve 1 can be lifted to a height corresponding to the rotating shaft 2 (that is, the axis of the roller sleeve 1 and the axis of the rotating shaft 2 are at the same horizontal height) by the lifting action of the lifting device, so as to fit the roller sleeve 1 on the rotating shaft 2. When disassembling the roller sleeve 1, the tray can also be adjusted to a suitable position height, and when the roller sleeve 1 is removed from the rotating shaft 2, the tray can directly support the roller sleeve 1 to prevent it from falling. The adoption of such a technical solution not only reduces the labor intensity of operators and improves production efficiency, but also reduces the probability of production accidents, which is conducive to safe production.

[0039] As an implementation method, Figure 1 , 2, 3, further comprising a first supporting plate 5, a rotating body 51 and a mounting component 54. The mounting component 54 is fixedly connected to the upper surface of the tray 4, and is provided with a first mounting hole 55 and a second mounting hole 56. The first mounting hole 55 and the second mounting hole 56 are both cylindrical, and the axes of the first mounting hole 55 and the second mounting hole 56 are perpendicular to the upper surface of the tray 4. The first mounting hole 55 and the second mounting hole 56 are arranged in sequence from top to bottom and are connected to each other. The diameter of the first mounting hole 55 is smaller than the diameter of the second mounting hole 56, and the first mounting hole 55 forms an opening on the upper surface of the mounting component 54. The rotating body 51 includes a first rotating part 52 and a second rotating part 53. The first rotating part 52 and the second rotating part 53 are both cylindrical, and their axes coincide. The diameter of the first rotating part 52 is smaller than the diameter of the first mounting hole 55, and the diameter of the second rotating part 53 is larger than the diameter of the first mounting hole 55 and smaller than the diameter of the second mounting hole 56. The second rotating part 53 is arranged in the second mounting hole 56, and the first rotating part 52 is inserted in the first mounting hole 55 and extends from the opening to the outside of the first mounting hole 55. The first supporting plate 5 is placed horizontally, and one end of the first rotating part 52 extending from the opening is fixedly connected to the lower surface of the first supporting plate 5. The roller sleeve 1 can be placed on the upper surface of the first supporting plate 5, and the rotating body 51 can rotate around the axis of the first rotating part 52 to drive the roller sleeve 1 to rotate through the first supporting plate 5. When in use, when the roller sleeve 1 rises to a position corresponding to the rotating shaft 2 (the position when the axis of the roller sleeve 1 and the axis of the rotating shaft 2 are at the same horizontal height) under the driving action of the lifting device 31, the axis extension direction of the roller sleeve 1 can be adjusted by rotating the rotating body 51 to make it the same as the axis extension direction of the rotating shaft 2, thereby facilitating the roller sleeve 1 to be mounted on the rotating shaft 2.

[0040] Furthermore, if Figure 3 As shown, it also includes a positioning screw 57. A positioning screw hole 58 matching the positioning screw 57 is provided on the side wall of the second mounting hole 56. The positioning screw 57 is threadedly connected in the positioning screw hole 58 and can abut against the second rotating part 53. When the rotating body 51 drives the roller sleeve 1 to rotate to the target position during use, the rotating body 51 and the mounting component 54 can be fixed together by screwing in the positioning screw 57, thereby ensuring that the axial direction of the roller sleeve 1 remains unchanged during the replacement process, thereby ensuring the smooth replacement work. In actual production, the number of positioning screw holes 58 is at least two, and at least two positioning screw holes 58 are evenly arranged along the circumference of the second mounting hole. The number of positioning screws 57 is equal to the number of positioning screw holes 58, and they correspond one to one. In this way, it can be ensured that the rotating body 51 and the mounting component 54 can be firmly fixed.

[0041] Preferably, if Figure 1 , 2As shown in FIG. 3 , the roller sleeve 1 further comprises a first track 61 and a second supporting plate 6. The first track 61 extends horizontally and is fixedly connected to the upper surface of the first supporting plate 5. The second supporting plate 6 is horizontal. The roller sleeve 1 can be placed on the upper surface of the second supporting plate 6. A first running wheel 62 is arranged on the lower surface of the second supporting plate 6, so that the second supporting plate 6 can drive the roller sleeve 1 to move along the track through the first running wheel 62. The extension direction of the first track 61 is perpendicular to the axis direction of the roller sleeve 1 carried by the second supporting plate 6. During use, as described above, when the lifting device 31 lifts the roller sleeve 1 to the target height and then drives the roller sleeve 1 to rotate to the target position through the rotating body 51, the axis of the roller sleeve 1 and the axis of the rotating shaft 2 are parallel and located on the same horizontal plane. At this time, the axis of the roller sleeve 1 can be coincident with the axis of the rotating shaft 2 by driving the second supporting plate 6 to move along the first track 61. In this way, the roller sleeve 1 can be easily sleeved on the rotating shaft 2 by driving the roller sleeve 1 to move along the axis direction manually or by other driving devices, which brings convenience to the replacement work. In actual production, in order to ensure the stability of the operation of the second supporting plate 6, as shown in the figure, the number of first rails 61 is two, the number of first wheels 62 is at least four, and there are at least two first wheels 62 corresponding to one first rail 61.

[0042] Preferably, Figure 1 , 2 3, it also includes a second track 64 and a third supporting plate 63. The second track 64 extends in the horizontal direction, and its extension direction is perpendicular to the extension direction of the first track 61. The second track 64 is fixedly connected to the upper surface of the second supporting plate 6. The third supporting plate 63 is placed horizontally. The roller sleeve 1 can be placed on the upper surface of the third supporting plate 63. A second running wheel 65 is arranged on the lower surface of the third supporting plate 63, so that the third supporting plate 63 can drive the roller sleeve 1 to move along the track through the second running wheel 65. With such a technical solution, when the axis of the roller sleeve 1 coincides with the axis of the rotating shaft, the third supporting plate 63 can be driven to move along the second track 64, so that the roller sleeve 1 can be as close to the rotating shaft 2 as possible, thereby reducing the moving distance of the roller sleeve 1 during the replacement process and reducing the labor intensity. In actual production, in order to ensure the stability of the operation of the third supporting plate 63, as shown in the figure, the number of second tracks 64 can be two, the number of second running wheels 65 can be at least four, and at least two second running wheels 65 correspond to one second track 64.

[0043] Specifically, Figure 3 , 4As shown, a bearing component 7 is arranged on the upper surface of the third supporting plate 63, and the bearing component 7 includes a column 71 and a bearing shaft 72. The column 71 is vertically arranged and the lower end is fixedly connected to the upper surface of the third supporting plate 63, and the bearing shaft 72 is a cylinder with a diameter smaller than the inner diameter of the roller sleeve 1. The axis of the bearing shaft 72 is horizontal, and one end is fixedly connected to the top of the column 71, and the other end is in a free state, so that the roller sleeve 1 can be sleeved on the bearing shaft 72 through the end of the bearing shaft 72 that is in a free state. In actual production, there can be two bearing components. When in use, one bearing component 7 carries the roller sleeve 1 to be installed, and the other bearing component 7 is in an unloaded state. First, the bearing shaft 72 in the bearing component 7 in the unloaded state is adjusted to a position corresponding to the rotating shaft 2, and the roller sleeve 1 mounted on the rotating shaft 2 is driven to move along the axial direction by manual or other driving devices, so that the roller sleeve 1 is withdrawn from the rotating shaft 2 and is simultaneously mounted on the bearing shaft 72 in the bearing component 7 in the unloaded state. After the disassembly work is completed, the position of the roller sleeve 1 to be installed is adjusted to correspond to the rotating shaft 2, and then the roller sleeve 1 to be installed is driven to move along the axial direction, so that it is withdrawn from the bearing shaft 72 and simultaneously mounted on the rotating shaft 2, thereby completing the installation work.

[0044] As an implementation method, Figure 1 As shown, the frame 3 includes a crossbeam 32 and legs 33;

[0045] The crossbeam 32 is arranged horizontally, and the legs 33 are arranged vertically. There are two legs 33, and the top ends of the two legs 33 are respectively fixedly connected to the two ends of the crossbeam 32 in the extension direction, so that the crossbeam 32 and the two legs 33 form a door shape. The lifting device 31 is fixedly installed on the crossbeam 32. Figure 1 and Figure 6 As shown, universal wheels 34 are provided at the bottom ends of the two legs 33. This makes it easier to move the roller sleeve replacement tooling, improves the adaptability of the work, and in order to ensure the overall stability of the roller sleeve replacement tooling, in actual production, two universal wheels 34 can be provided at the bottom of each leg 33, and the four universal wheels 34 are arranged in a rectangular array at the same level.

[0046] As an implementation method, Figure 1 , 2, 5, it also includes a connecting component 8 and a limiting component 9. The connecting component 8 is fixedly connected to the tray 4, and the lifting device 31 is in transmission connection with the connecting component 8, so that the lifting device 31 can drive the connecting component 8 to drive the tray 4 to reciprocate in the vertical direction, and a first limiting groove 81 is provided on the connecting component 8. The limiting component 9 is fixedly connected to the tray 4, and a second limiting groove 91 corresponding to the first limiting groove 81 is provided on the limiting component 9, and the first limiting groove 81 and the second limiting groove 91 together constitute a limiting hole. A guide rod 35 fixedly connected to the crossbeam 32 is provided on the frame 3, and the guide rod 35 is vertically arranged and penetrated in the limiting hole, so that the tray 4 reciprocates in the vertical direction along the guide rod 35. The use of such a technical solution can ensure the stability of the tray 4 when it moves in the vertical direction and prevent it from swinging perpendicular to the direction of movement.

[0047] Furthermore, if Figure 1 , 2 As shown, there are two lifting devices 31, which are arranged at intervals along the extension direction of the crossbeam 32; and / or, there are two guide rods 35, which are arranged at intervals along the extension direction of the crossbeam 32. In actual production, in the horizontal direction, the two lifting devices 31 can be located on both sides of the tray 4, so that the lifting force borne by the tray 4 can be uniform. Similarly, in the horizontal direction, the two guide rods 35 can be located on both sides of the tray 4, so that the stability of the operation of the tray 4 is further guaranteed.

[0048] The above embodiments enable the present invention to reduce the labor intensity of operators, improve production efficiency, and at the same time reduce the probability of production accidents, which is beneficial to safe production.

[0049] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A roller sleeve replacement tool for a calender, used for transporting a roller sleeve (1) to a position corresponding to a rotating shaft (2) of the calender, or transporting a roller sleeve (1) removed from the rotating shaft (2) to another target position, characterized in that: include: A frame (3), a lifting device (31), and a tray (4) for carrying the roller sleeve (1); The lifting device (31) is fixedly mounted on the frame (3), and the tray (4) is horizontally arranged and connected to the lifting device (31), so that the lifting device (31) can drive the tray (4) to drive the roller sleeve (1) to reciprocate in the vertical direction; The lifting device (31) adopts a cylinder or an electric push rod; It also includes a first supporting plate (5), a rotating body (51) and a mounting component (54); The mounting component (54) is fixedly connected to the upper surface of the tray (4); a first mounting hole (55) and a second mounting hole (56) are provided on the mounting component (54); the first mounting hole (55) and the second mounting hole (56) are both cylindrical, and the axes of the first mounting hole (55) and the second mounting hole (56) are perpendicular to the upper surface of the tray (4); the first mounting hole (55) and the second mounting hole (56) are arranged in sequence from top to bottom and are interconnected; the diameter of the first mounting hole (55) is smaller than the diameter of the second mounting hole (56); and the first mounting hole (55) forms an opening on the upper surface of the mounting component (54); The rotating body (51) comprises a first rotating part (52) and a second rotating part (53); the first rotating part (52) and the second rotating part (53) are both cylindrical, and their axes coincide with each other; the diameter of the first rotating part (52) is smaller than the diameter of the first mounting hole (55); the diameter of the second rotating part (53) is larger than the diameter of the first mounting hole (55) and smaller than the diameter of the second mounting hole (56); the second rotating part (53) is arranged in the second mounting hole (56); the first rotating part (52) is inserted into the first mounting hole (55) and extends from the opening to the outside of the first mounting hole (55); The first supporting plate (5) is placed horizontally, one end of the first rotating portion (52) extending from the opening is fixedly connected to the lower surface of the first supporting plate (5), the roller sleeve (1) can be placed on the upper surface of the first supporting plate (5), and the rotating body (51) can rotate around the axis of the first rotating portion (52) to drive the roller sleeve (1) to rotate through the first supporting plate (5); It also includes a first rail (61) and a second supporting plate (6); The first track (61) extends horizontally and is fixedly connected to the upper surface of the first supporting plate (5); the second supporting plate (6) is horizontal; the roller sleeve (1) can be placed on the upper surface of the second supporting plate (6); and a first running wheel (62) is provided on the lower surface of the second supporting plate (6), so that the second supporting plate (6) can drive the roller sleeve (1) to move along the track via the first running wheel (62); Also includes a second rail (64) and a third supporting plate (63); The second track (64) extends in a horizontal direction, and its extension direction is perpendicular to the extension direction of the first track (61); the second track (64) is fixedly connected to the upper surface of the second supporting plate (6); the third supporting plate (63) is placed horizontally; the roller sleeve (1) can be placed on the upper surface of the third supporting plate (63); a second running wheel (65) is provided on the lower surface of the third supporting plate (63), so that the third supporting plate (63) can drive the roller sleeve (1) to move along the track via the second running wheel (65); A bearing component (7) is provided on the upper surface of the third supporting plate (63); The bearing component (7) comprises a column (71) and a bearing shaft (72), wherein the column (71) is vertically arranged and the lower end is fixedly connected to the upper surface of the third supporting plate (63), the bearing shaft (72) is cylindrical with a diameter smaller than the inner diameter of the roller sleeve (1), the axis of the bearing shaft (72) is horizontal, and one end is fixedly connected to the top of the column (71), and the other end is in a free state, so that the roller sleeve (1) can be sleeved onto the bearing shaft (72) through the free end of the bearing shaft (72); the frame (3) comprises a crossbeam (32) and legs (33); The crossbeam (32) is arranged horizontally, and the legs (33) are arranged vertically. There are two legs (33), and the top ends of the two legs (33) are respectively fixedly connected to two ends of the crossbeam (32) in the extension direction, so that the crossbeam (32) and the two legs (33) form a door shape. The lifting device (31) is fixedly mounted on the crossbeam (32), and universal wheels (34) are arranged at the bottom ends of the two legs (33); It also includes a connecting component (8) and a limiting component (9); The connecting component (8) is fixedly connected to the tray (4), and the lifting device (31) is drivingly connected to the connecting component (8), so that the lifting device (31) can drive the connecting component (8) to drive the tray (4) to reciprocate in a vertical direction, and a first limiting groove (81) is provided on the connecting component (8); The limiting component (9) is fixedly connected to the tray (4), and a second limiting groove (91) corresponding to the first limiting groove (81) is provided on the limiting component (9), and the first limiting groove (81) and the second limiting groove (91) together constitute a limiting hole; The frame body (3) is provided with a guide rod (35) fixedly connected to the crossbeam (32); the guide rod (35) is vertically arranged and penetrates the limiting hole, so that the tray (4) performs vertical reciprocating motion along the guide rod (35).

2. The roller sleeve replacement tool according to claim 1 is characterized in that: Also included is a set screw (57); A positioning screw hole (58) matching the positioning screw (57) is provided on the side wall of the second mounting hole (56); the positioning screw (57) is threadedly connected in the positioning screw hole (58) and can abut against the second rotating portion (53).

3. The roller sleeve replacement tool according to claim 2 is characterized in that: The number of the positioning screw holes (58) is at least two, and the at least two positioning screw holes (58) are evenly arranged along the circumference of the second mounting hole (56). The number of the positioning screws (57) is equal to the number of the positioning screw holes (58), and they correspond one to one.

4. The roller sleeve replacement tool according to claim 3 is characterized in that: The number of the lifting devices (31) is two, and the two lifting devices (31) are arranged at intervals along the extension direction of the crossbeam (32); And / or, the number of the guide rods (35) is two, and the two guide rods (35) are arranged at intervals along the extension direction of the crossbeam (32).

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