A kind of packaging machine dress steel sleeve tooling

Abstract

This utility model discloses a tooling for installing or removing steel sleeves on a packaging machine, belonging to the technical field of packaging machine processing equipment. It includes a cylinder sleeve removal tooling and a cylinder sleeve installation tooling. The cylinder sleeve removal tooling includes a fixed sleeve, a sleeve removal screw, and a first nut. The sleeve removal screw includes a first rod body and a protrusion, with the protrusion symmetrically arranged at one end of the first rod body. The sleeve removal screw passes through a steel sleeve hole on a lifting rod, and the protrusion on the sleeve removal screw fits into a groove on the lifting rod sleeve hole. A fixed sleeve is installed at one end of the sleeve removal screw, and a first nut is installed at one end of the fixed sleeve. The cylinder sleeve installation tooling includes an installation screw, a retaining plate, and a second nut. The installation screw passes through the lifting rod, with a retaining plate at one end of the installation screw and a second nut at one end of the retaining plate. This tooling enables the installation or removal of cylinder sleeves on the lifting rod of a carton packaging machine, ensuring efficient installation or removal, effectively preventing damage to the lifting rod, and significantly reducing workload.

Description

Technical Field

[0001] This utility model belongs to the technical field of packaging machine processing equipment, specifically relating to a steel sleeve loading tool for a packaging machine. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] The CV first elevator is a crucial component in the transparent paper forming process of the YB95 packaging machine, significantly impacting both the machine's effective operating rate and material consumption. During actual production, the CV first elevator may experience blockages due to factors such as inadequate cigarette delivery or abnormal dimensions in the lifting channel, leading to a "CV first elevator blockage" shutdown. Simultaneously, the overload clutch inside the first elevator disengages to protect its components from damage. However, the overload clutch's components are rigidly fitted; repeated disengagement will gradually wear down the internal steel sleeve, eventually causing the clutch to lose its function and the packaging machine to malfunction.

[0004] The standard speed of the YB95 packaging machine is 50 packs / minute. As the copper bushing wears down, the frequency of shutdowns due to "CV first elevator blockage" gradually increases, eventually preventing the equipment from operating normally and efficiently. Each time a fault occurs, the operator removes the deformed cigarette packs from the elevator channel, manually rotates the machine to automatically reset the clutch, and then restarts the equipment. The fault resolution time is approximately two minutes. After the steel bushing wears down, the clutch of the CV first elevator will frequently disengage, and may even lose its function. In this case, a maintenance worker needs to replace the steel bushing to restore clutch function.

[0005] When frequent blockages occur in the CV first lifter, or even clutch malfunction, two maintenance workers need to work together to replace the steel sleeve. Prepare tools such as hex wrenches, hammers, punches, and flashlights. Remove the protective cover under the carton transparent paper conveyor of the packaging machine and the protective cover on the back of the packaging machine. The maintenance workers, either squatting or sitting under the transparent paper conveyor, use the hammer and punch to knock the steel sleeve out of the lifter rod sleeve hole, and then replace it with a new steel sleeve.

[0006] However, since the clutch is located inside the packaging machine, additional lighting equipment is needed to facilitate maintenance workers replacing the steel sleeve. Furthermore, the operating space around the clutch assembly is limited, requiring care to avoid damaging the lifting rod. Maintenance workers can only replace the steel sleeve by repeatedly adjusting the tapping position and tapping with small amplitude. Additionally, because the fit between the steel sleeve and the lifting rod sleeve hole is an interference fit, and the steel sleeve is relatively small, continuous tapping with a punch is required to separate them. Replacing with a new steel sleeve requires perfect alignment to prevent damage to both the new sleeve and the lifting rod before the punch can be used to drive the new sleeve into the sleeve hole. The entire replacement process is time-consuming; a steel sleeve has a lifespan of three months, and replacing it during production significantly reduces the equipment's effective operating rate. Moreover, the entire replacement process requires maintenance workers to work continuously, either squatting or sitting, resulting in very high work intensity and seriously impacting their health. Furthermore, as the steel sleeve gradually wears down, the material consumption due to machine downtime increases, raising production costs. Utility Model Content

[0007] To address the aforementioned problems, this utility model provides a steel sleeve installation and removal tooling for a packaging machine, which enables the installation or removal of the cylinder sleeve of the lifting rod on the carton packaging machine, ensuring the efficiency of installation or removal, effectively preventing damage to the lifting rod, and significantly reducing workload.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: A packaging machine tooling for installing a steel sleeve includes a cylinder sleeve pull-out tooling and a cylinder sleeve installation tooling. The cylinder sleeve pull-out tooling includes a fixed sleeve, a pull-out screw, and a first nut. The pull-out screw includes a first rod body and a protrusion, with the protrusion symmetrically arranged at one end of the first rod body. The pull-out screw passes through a steel sleeve hole on a lifting rod, and the protrusion on the pull-out screw fits into a groove on the lifting rod sleeve hole. A fixed sleeve is installed at one end of the pull-out screw, and a first nut is installed at one end of the fixed sleeve. The cylinder liner installation includes a liner screw, a retaining plate, and a second nut. The liner screw passes through the lifting rod, and a retaining plate is provided at one end of the liner screw. A second nut is provided at one end of the retaining plate.

[0009] As a further technical solution, the length of the pull sleeve screw is greater than the sum of the thicknesses of the steel sleeve, the fixing sleeve, and the first nut, and the inner diameter of the fixing sleeve is greater than the diameter of the lifting rod sleeve hole; a first circular hole is provided on the fixing sleeve, and a second circular hole is provided at one end of the first circular hole, and the first circular hole and the second circular hole are connected.

[0010] As a further technical solution, the diameter of the first circular hole is smaller than the diameter of the second circular hole, and the fixing sleeve is passed through the first and second circular holes.

[0011] As a further technical solution, the pull sleeve screw is provided with external threads, and the fixing sleeve is sleeved on one end of the pull sleeve screw. When in use, one end face of the fixing sleeve is in close contact with the lifting rod.

[0012] As a further technical solution, the first nut is screwed onto the external thread of the pull sleeve screw, and one end face of the first nut is in close contact with the other end face of the fixed sleeve.

[0013] As a further technical solution, the mounting screw includes a second rod body, a third rod body, and a fourth rod body, with the third rod body disposed at one end of the second rod body and the fourth rod body disposed at one end of the third rod body.

[0014] As a further technical solution, the second shaft is a hexagonal structure, and the second shaft and the third shaft are fixedly connected.

[0015] As a further technical solution, the third rod body is a cylindrical structure, and the diameter of the third rod body is larger than that of the outer edge of the cylinder liner. When installing the cylinder liner, one end face of the second rod body is in close contact with one end face of the cylinder liner, and the other end face of the cylinder liner is in close contact with the lifting rod.

[0016] As a further technical solution, the fourth rod body is a cylindrical structure, and the fourth rod body is fixedly connected to the third rod body; the fourth rod body is provided with external threads, and a baffle is sleeved on one end of the fourth rod body, with one end face of the baffle tightly attached to the lifting rod.

[0017] As a further technical solution, a second nut is provided at one end of the baffle, the second nut is screwed onto the fourth rod, and one end of the second nut is in close contact with the other end face of the baffle.

[0018] Compared with the prior art, the advantages and positive effects of this utility model are: This utility model features a pull-sleeve screw with symmetrical protrusions at one end of its first shaft. During operation, the pull-sleeve screw passes through the steel sleeve hole on the lifting rod, and the protrusions precisely fit into the grooves on the lifting rod sleeve hole. Simultaneously, the protrusions contact the end face of the steel sleeve, forming a stable force-bearing fulcrum and preventing screw misalignment during pulling, which could lead to wear on the lifting rod sleeve hole. A fixing sleeve has a communicating first and second circular hole, fitted onto the end of the pull-sleeve screw near the lifting rod, with one end face of the fixing sleeve tightly against the lifting rod. When the steel sleeve is pulled out, the second circular hole can accommodate the steel sleeve, preventing it from falling out during disassembly and assembly. Simultaneously, the first circular hole matches the pull-sleeve screw, ensuring the coaxiality of the fixing sleeve and the screw. The pull-sleeve screw has external threads, and a first nut is screwed into the threaded position, with one end face tightly against the other end face of the fixing sleeve. During operation, only the first nut needs to be rotated with a wrench. Through the contact between the nut and the fixing sleeve, the pull-sleeve screw is driven to move outward, thereby smoothly separating the steel sleeve along the axial direction of the lifting rod sleeve hole, eliminating the need for traditional continuous hammering. This can significantly shorten the time required to pull out the steel sleeve, reducing labor costs and workload.

[0019] During installation, the new steel sleeve is fitted onto the outside of the third rod body of the mounting screw. The diameter of the third rod body is larger than the outer diameter of the steel sleeve, ensuring the coaxiality of the steel sleeve and the mounting screw. Simultaneously, one end face of the second rod body is tightly fitted against one end face of the steel sleeve. The third rod body passes through the lifting rod sleeve hole, forming preliminary alignment between the steel sleeve and the sleeve hole, avoiding manual alignment deviations. A retaining plate is fitted onto the fourth rod body, with one end face of the retaining plate tightly fitted against the end face of the lifting rod furthest from the steel sleeve. During installation, the retaining plate prevents the second nut from directly contacting the lifting rod, preventing scratches on the lifting rod surface during nut rotation. Simultaneously, the rigid structure of the retaining plate distributes the force, preventing deformation of the lifting rod due to excessive localized stress. During operation, a wrench is used to secure the second nut, while another wrench is used to rotate the hexagonal second rod body, driving the mounting screw to move inward. The pushing force of the second rod body on the steel sleeve smoothly pushes the steel sleeve into the lifting rod sleeve hole. The entire process requires no hammering; the steel sleeve enters the sleeve hole at a uniform axial speed, ensuring the stability of the interference fit. After installation, the steel sleeve is precisely positioned, preventing frequent clutch disengagement due to installation deviations. The cylinder sleeve for the lifting rod on the carton packaging machine is installed or pulled out by pulling out and installing the cylinder sleeve, ensuring efficient installation or pull-out and effectively preventing damage to the lifting rod, significantly reducing workload. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a three-dimensional structural diagram of the pull-out cylinder sleeve of the packaging machine tooling according to this utility model; Figure 2This is a cross-sectional view of the pull-out cylinder liner of the packaging machine's steel sleeve assembly tooling according to this utility model; Figure 3 This is a schematic diagram of the structure of the pull sleeve screw of this utility model; Figure 4 This is a schematic diagram of the structure of the fixing sleeve of this utility model; Figure 5 This is a cross-sectional view of the fixing sleeve of this utility model; Figure 6 This is a schematic diagram of the first nut structure of this utility model; Figure 7 This is a three-dimensional structural diagram of the installation cylinder liner of the packaging machine steel sleeve tooling of this utility model; Figure 8 This is a cross-sectional view of the cylinder liner of the packaging machine's steel sleeve mounting fixture according to this utility model; Figure 9 This is a schematic diagram of the baffle plate of this utility model; Figure 10 This is a structural schematic diagram of the cylinder liner of this utility model; Figure 11 This is a schematic diagram of the structure of the second nut of this utility model; Figure 12 This is a schematic diagram of the mounting screw structure of this utility model; In the diagram: 1. First nut; 2. Fixing sleeve; 21. First round hole; 22. Second round hole; 3. Lifting rod; 4. Pulling screw; 41. First rod body; 42. Protrusion; 5. Stop plate; 51. Stop plate through hole; 6. Sleeve screw; 61. Second rod body; 62. Third rod body; 63. Fourth rod body; 7. Steel sleeve; 8. Second nut. Detailed Implementation

[0022] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] Because the clutch is located inside the packaging machine, additional lighting equipment is needed to facilitate maintenance workers replacing the steel sleeve. Furthermore, the limited operating space around the clutch assembly necessitates careful handling to prevent damage to the lifting rod. Maintenance workers can only replace the steel sleeve by repeatedly adjusting the tapping position and tapping with small amplitude. Additionally, due to the interference fit between the steel sleeve and the lifting rod sleeve hole, and the relatively small size of the steel sleeve, continuous tapping with a punch is required to separate them. Replacing with a new steel sleeve requires perfect alignment to prevent damage to both the new sleeve and the lifting rod before the punch can be used to drive the new sleeve into the sleeve hole. The entire replacement process is time-consuming; a steel sleeve has a lifespan of three months, and replacing it during production significantly reduces the equipment's effective operating rate. Moreover, the entire replacement process requires maintenance workers to work continuously, either squatting or sitting, resulting in extremely high workload and seriously impacting their health. Furthermore, as the steel sleeve gradually wears down, the material consumption caused by downtime increases, raising production costs.

[0024] The present invention will be described in detail with reference to the accompanying drawings. This embodiment discloses a packaging machine tooling for loading and unloading steel sleeves, such as... Figure 1 , Figure 2 as well as Figure 3 As shown, the process includes pulling out the cylinder liner and installing the cylinder liner. Pulling out the cylinder liner includes a fixing sleeve 2, a pull-out screw 4, and a first nut 1. The pull-out screw 4 includes a first rod body 41 and a protrusion 42, with the protrusion 42 symmetrically arranged at one end of the first rod body 41. The pull-out screw 4 passes through the sleeve hole of the steel sleeve 7 on the lifting rod 3, and the protrusion 42 on the pull-out screw 4 fits into the groove on the sleeve hole of the lifting rod 3. The fixing sleeve 2 is installed at one end of the pull-out screw 4, and the first nut 1 is installed at one end of the fixing sleeve 2. Specifically, the first shaft 41 of the pull sleeve screw 4 has symmetrically arranged protrusions 42 at one end. During operation, the pull sleeve screw 4 passes through the sleeve hole of the steel sleeve 7 on the lifting rod 3. The protrusions 42 are precisely fitted with the groove on the sleeve hole of the lifting rod 3, and at the same time, the protrusions 42 contact the end face of the steel sleeve 7, forming a stable force support point, avoiding screw displacement during the pulling process and causing wear on the sleeve hole of the lifting rod 3. The fixing sleeve 2 has a connected first circular hole 21 and a second circular hole 22, and is fitted on the end of the pull sleeve screw 4 near the lifting rod 3, with one end face of the fixing sleeve 2 tightly attached to the lifting rod 3.

[0025] When the steel sleeve 7 is pulled out, the second circular hole 22 can accommodate the steel sleeve 7, preventing it from falling out during disassembly and assembly. Simultaneously, the first circular hole 21 matches the pull sleeve screw 4, ensuring the coaxiality of the fixing sleeve 2 and the screw. The pull sleeve screw 4 has external threads, and the first nut 1 is screwed into the threaded position with one end face tightly against the other end face of the fixing sleeve 2. During operation, only the first nut 1 needs to be rotated with a wrench. Through the abutment relationship between the nut and the fixing sleeve 2, the pull sleeve screw 4 is driven to move outward, thereby causing the steel sleeve 7 to smoothly separate axially along the sleeve hole of the lifting rod 3, eliminating the need for traditional continuous hammering operations. This significantly reduces the time required to pull out the steel sleeve 7, lowering labor costs and workload.

[0026] like Figure 7 and Figure 8 As shown, the cylinder liner installation includes a liner screw 6, a retaining plate 5, and a second nut 8. The liner screw 6 passes through the lifting rod 3, and a retaining plate 5 is provided at one end of the liner screw 6. A second nut 8 is provided at one end of the retaining plate 5.

[0027] Specifically, during installation, the new steel sleeve 7 is fitted onto the outside of the third rod body 62 of the mounting screw. The diameter of the third rod body 62 is larger than the outer diameter of the steel sleeve 7, which can ensure the coaxiality of the steel sleeve 7 and the mounting screw 6. At the same time, one end face of the second rod body 61 is in close contact with one end face of the steel sleeve 7, and the third rod body 62 passes through the sleeve hole of the lifting rod 3, forming the initial alignment of the steel sleeve 7 and the sleeve hole, avoiding manual alignment deviation.

[0028] The fourth rod body 63 is fitted with a retaining plate 5, one end of which is in close contact with the end of the lifting rod 3 furthest from the steel sleeve 7. During installation, the retaining plate 5 prevents the second nut 8 from directly contacting the lifting rod 3, thus preventing scratches on the surface of the lifting rod 3 when the nut rotates. Simultaneously, the rigid structure of the retaining plate 5 distributes the force, preventing deformation of the lifting rod 3 due to excessive local stress. During operation, a wrench is used to fix the second nut 8, while another wrench is used to rotate the hexagonal second rod body 61, driving the mounting screw 6 to move inward. Through the pushing force of the second rod body 61 on the steel sleeve 7, the steel sleeve 7 is smoothly pushed into the sleeve hole of the lifting rod 3. The entire process requires no hammering; the steel sleeve 7 enters the sleeve hole at a uniform speed along the axial direction, ensuring the stability of the interference fit. Furthermore, the steel sleeve 7 is precisely positioned after installation, avoiding frequent clutch disengagement due to installation deviations. The cylinder liner is installed or pulled out of the lifting rod 3 on the carton packaging machine by pulling out and installing the cylinder liner in coordination, which ensures the efficiency of installation or pulling out, effectively avoids damage to the lifting rod 3, and greatly reduces the workload.

[0029] like Figure 4 and Figure 5As shown, the length of the pull sleeve screw 4 is greater than the sum of the thicknesses of the steel sleeve 7, the fixing sleeve 2, and the first nut 1. The inner diameter of the fixing sleeve 2 is greater than the diameter of the hole in the lifting rod 3. A first circular hole 21 is provided on the fixing sleeve 2, and a second circular hole 22 is provided at one end of the first circular hole 21. The first circular hole 21 and the second circular hole 22 are connected. The diameter of the first circular hole 21 is smaller than the diameter of the second circular hole 22, and the fixing sleeve 2 is passed through the first circular hole 21 and the second circular hole 22.

[0030] Specifically, the pull sleeve screw 4 is inserted into the inner side of the sleeve hole of the steel sleeve 7 of the lifting rod 3, so that the protrusion 42 on the pull sleeve screw 4 precisely fits into the groove on the sleeve hole of the lifting rod 3. At this time, since the inner diameter of the fixing sleeve 2 is larger than the diameter of the sleeve hole of the lifting rod 3, the fixing sleeve 2 can be smoothly inserted from the end of the pull sleeve screw 4 away from the protrusion 42 until the end face of the fixing sleeve 2 near the lifting rod 3 is tightly fitted with the surface of the lifting rod 3. Next, the first nut 1 is screwed onto the external thread of the pull sleeve screw 4, ensuring that the end face of the first nut 1 near the fixing sleeve 2 is tightly fitted with the other end face of the fixing sleeve 2 away from the lifting rod 3, completing the preliminary assembly of the cylinder liner and preparing for the subsequent pulling out of the steel sleeve 7.

[0031] Specifically, the second round hole 22 can accommodate the steel sleeve 7, preventing the steel sleeve 7 from falling off during disassembly and assembly. At the same time, the first round hole 21 is adapted to the pull sleeve screw 4 to ensure the coaxiality of the fixing sleeve 2 and the screw.

[0032] like Figure 2 As shown, the pull sleeve screw 4 has an external thread, and the fixing sleeve 2 is fitted onto one end of the pull sleeve screw 4. During use, one end face of the fixing sleeve 2 is in close contact with the lifting rod 3. The first nut 1 is screwed onto the external thread of the pull sleeve screw 4, and one end face of the first nut 1 is in close contact with the other end face of the fixing sleeve 2.

[0033] Specifically, after the initial assembly of the pull sleeve screw 4, the fixing sleeve 2, and the first nut 1 is completed, a wrench is used to hold the first nut 1 and rotate it clockwise. Because the pull sleeve screw 4 has external threads, and the first nut 1 is tightly fitted to the fixing sleeve 2, and the fixing sleeve 2 is tightly fitted to the lifting rod 3, the rotation of the first nut 1 will generate a continuous axial thrust on the fixing sleeve 2. The tight fit between the fixing sleeve 2 and the lifting rod 3 restricts its own movement, thereby driving the pull sleeve screw 4 to move outwards away from the lifting rod 3. As the pull sleeve screw 4 moves, the protrusion 42 at its end drives the steel sleeve 7 to move synchronously, causing the steel sleeve 7 to gradually disengage from the sleeve hole of the lifting rod 3, thus realizing the pull-out operation of the worn steel sleeve 7.

[0034] like Figure 12 As shown, the mounting screw 6 includes a second rod body 61, a third rod body 62, and a fourth rod body 63. The third rod body 62 is attached to one end of the second rod body 61, and the fourth rod body 63 is attached to one end of the third rod body 62. The second rod body 61 has a hexagonal structure, and the second rod body 61 and the third rod body 62 are fixedly connected.

[0035] When installing the new steel sleeve 7, first place the new steel sleeve 7 onto the third rod body 62 of the mounting screw 6. Since the third rod body 62 is cylindrical and its diameter is larger than the outer diameter of the steel sleeve 7, the steel sleeve 7 can be stably fitted onto the third rod body 62 without shifting. Push the mounting screw 6 to move the third rod body 62, with the steel sleeve 7 on it, towards the sleeve hole of the lifting rod 3, until the end face of the steel sleeve 7 away from the second rod body 61 is tightly fitted with the surface of the lifting rod 3, while ensuring that the third rod body 62 of the mounting screw 6 passes through the sleeve hole of the lifting rod 3. At this point, the second rod body 61 of the mounting screw 6 is located on the side of the steel sleeve 7 away from the lifting rod 3, and the end face of the second rod body 61 near the steel sleeve 7 is tightly fitted with the end face of the steel sleeve 7, completing the initial positioning of the new steel sleeve 7.

[0036] After the initial positioning of the new steel sleeve 7 is completed, the retaining plate 5 is inserted into one end of the fourth rod body 63 of the mounting screw 6, and the retaining plate 5 is pushed towards the lifting rod 3 until the end face of the retaining plate 5 near the lifting rod 3 is tightly fitted with the surface of the lifting rod 3 away from the steel sleeve 7. Then, the second nut 8 is screwed onto the external thread of the fourth rod body 63, and rotated until the end face of the second nut 8 near the retaining plate 5 is tightly fitted with the other end face of the retaining plate 5 away from the lifting rod 3. Next, a wrench is used to hold the second nut 8 in place, and another wrench is used to hold the hexagonal second rod body 61 of the mounting screw 6 and rotate it clockwise. Because the second nut 8 is tightly fitted with the retaining plate 5, and the retaining plate 5 is tightly fitted with the lifting rod 3, the mounting screw 6 will move towards the inside of the lifting rod 3 during rotation. The second rod body 61 pushes the steel sleeve 7 to move synchronously, smoothly pushing the steel sleeve 7 into the sleeve hole of the lifting rod 3, completing the installation of the new steel sleeve 7.

[0037] The third rod body 62 has a cylindrical structure, and its diameter is larger than the diameter of the outer edge of the cylinder liner. When installing the cylinder liner, one end face of the second rod body 61 is in close contact with one end face of the cylinder liner, and the other end face of the cylinder liner is in close contact with the lifting rod 3. Specifically, the diameter of the third rod body 62 is larger than the outer edge diameter of the steel sleeve 7, which ensures the coaxiality of the steel sleeve 7 and the mounting screw 6, and can hold the cylinder liner in place.

[0038] like Figure 9 As shown, the fourth rod body 63 is a cylindrical structure, and the fourth rod body 63 is fixedly connected to the third rod body 62; the fourth rod body 63 is provided with external threads, and a baffle 5 is fitted onto one end of the fourth rod body 63, with one end face of the baffle 5 tightly abutting the lifting rod 3. Figure 11 As shown, a second nut 8 is provided at one end of the baffle 5. The second nut 8 is screwed onto the fourth rod body 63, and one end of the second nut 8 is in close contact with the other end face of the baffle 5.

[0039] Specifically, the fourth rod body 63 is fitted with a baffle 5, with one end face of the baffle 5 in close contact with the end face of the lifting rod 3 away from the steel sleeve 7. During installation, the baffle 5 can prevent the second nut 8 from directly contacting the lifting rod 3, preventing the nut from scratching the surface of the lifting rod 3 when rotating; at the same time, the rigid structure of the baffle 5 can distribute the force, preventing the lifting rod 3 from deforming due to excessive local force.

[0040] How to use the steel sleeve of the packaging machine: When the CV first lifter clutch frequently disengages or even fails to reset, it indicates that the clutch sleeve 7 needs to be replaced. Replacing the sleeve 7 involves two steps: first, removing the worn sleeve 7; second, installing the new sleeve 7.

[0041] To remove the worn steel sleeve 7, the maintenance worker needs to use the pull-out steel sleeve tool from the steel sleeve installation and removal fixture. The pull-out screw 4 is passed through the spacer in the sleeve hole of the lifting rod 3 from the inside. After passing through the spacer, the fixing sleeve 2 is placed on the screw end of the pull-out screw 4, and then the nut is tightened using a wrench. Due to the rotation of the nut, the pull-out screw 4 moves outward, and the copper sleeve is pulled out of the sleeve hole of the lifting rod 3 by the two protrusions at the tail of the pull-out screw until it moves into the fixing sleeve 2. Then, the entire pull-out steel sleeve is removed and disassembled, and the worn steel sleeve 7 is removed.

[0042] To install the new steel sleeve 7, the maintenance worker needs to use the installation steel sleeve from the steel sleeve installation tool. After the installation screw 6 passes through the steel sleeve 7, it passes through the sleeve hole of the lifting rod 3 from the outside, with the steel sleeve 7 tightly against the sleeve hole. After passing through the sleeve hole, the retaining plate 5 is placed on the screw section of the installation screw 6, and then the nut is tightened. The nut is secured with a wrench, while another wrench is used to rotate the hexagonal body at the tail of the installation screw 6. Due to the rotation of the hexagonal body, the installation screw 6 moves inward, and the steel sleeve 7 is pushed into the sleeve hole of the lifting rod 3 by the cylindrical protrusion at the tail of the installation screw 6. Loosen the nut, remove the retaining plate 5 and the installation screw 6, and the new steel sleeve 7 is installed.

[0043] Using the steel sleeve installation tool, the steel sleeve 7 of the CV first lifter clutch can be replaced quickly, shortening the entire replacement time and reducing the labor intensity of maintenance workers. At the same time, using the tool to replace the steel sleeve 7 can effectively protect the lift rod 3, avoiding the need for the hammering method used before using the tool to replace the steel sleeve.

[0044] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A tooling for loading and unloading steel sleeves in a packaging machine, characterized in that, The process includes pulling out and installing a cylinder liner. The pulling out cylinder liner includes a fixing sleeve, a pulling screw, and a first nut. The pulling screw includes a first rod body and a protrusion, with the protrusion symmetrically arranged at one end of the first rod body. The pulling screw passes through a steel sleeve hole on a lifting rod, and the protrusion on the pulling screw fits into a groove on the lifting rod sleeve hole. A fixing sleeve is installed at one end of the pulling screw, and a first nut is installed at one end of the fixing sleeve. The cylinder liner installation includes a liner screw, a retaining plate, and a second nut. The liner screw passes through the lifting rod, and a retaining plate is provided at one end of the liner screw. A second nut is provided at one end of the retaining plate.

2. The packaging machine loading and unloading steel sleeve tooling as described in claim 1, characterized in that, The length of the pull sleeve screw is greater than the sum of the thicknesses of the steel sleeve, the fixing sleeve, and the first nut; the inner diameter of the fixing sleeve is greater than the diameter of the lifting rod sleeve hole; a first circular hole is provided on the fixing sleeve, and a second circular hole is provided at one end of the first circular hole, and the first circular hole and the second circular hole are connected.

3. The packaging machine loading and unloading steel sleeve tooling as described in claim 2, characterized in that, The diameter of the first circular hole is smaller than the diameter of the second circular hole, and the fixing sleeve is passed through the first and second circular holes.

4. The packaging machine loading and unloading steel sleeve tooling as described in claim 3, characterized in that, The pull sleeve screw is provided with external threads, and the fixing sleeve is sleeved on one end of the pull sleeve screw. When in use, one end face of the fixing sleeve is in close contact with the lifting rod.

5. The packaging machine steel sleeve loading fixture as described in claim 4, characterized in that, The first nut is screwed onto the external thread of the pull sleeve screw, and one end face of the first nut is in close contact with the other end face of the fixing sleeve.

6. The packaging machine steel sleeve loading fixture as described in claim 1, characterized in that, The mounting screw includes a second rod body, a third rod body, and a fourth rod body, with the third rod body located at one end of the second rod body and the fourth rod body located at one end of the third rod body.

7. The packaging machine steel sleeve loading fixture as described in claim 6, characterized in that, The second shaft has a hexagonal structure, and the second shaft and the third shaft are fixedly connected.

8. The packaging machine tooling for loading and unloading steel sleeves as described in claim 6, characterized in that, The third rod body is a cylindrical structure, and the diameter of the third rod body is larger than the outer edge of the cylinder liner. When installing the cylinder liner, one end face of the second rod body is in close contact with one end face of the cylinder liner, and the other end face of the cylinder liner is in close contact with the lifting rod.

9. The packaging machine tooling for loading and unloading steel sleeves as described in claim 6, characterized in that, The fourth rod is a cylindrical structure and is fixedly connected to the third rod. The fourth rod is provided with external threads, and a baffle is fitted at one end of the fourth rod, with one end face of the baffle in close contact with the lifting rod.

10. The packaging machine tooling for loading and unloading steel sleeves as described in claim 9, characterized in that, A second nut is provided at one end of the baffle, and the second nut is screwed onto the fourth rod. One end of the second nut is in close contact with the other end face of the baffle.

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