Disassembling and assembling tool and disassembling and assembling method

Abstract

The invention discloses a dismounting and mounting tool and a dismounting and mounting method. The disassembling and assembling tool is used for the extruding machine, the extruding machine comprises an extruding cylinder and an extruding sleeve, the extruding cylinder is sleeved with the extruding sleeve, and the disassembling and assembling tool is characterized by comprising a base body, a first end, a second end, a first connecting rod and a second connecting rod, the lifting part is slidably arranged on the upper side of the seat body; when the lifting part slides in the direction from the first end to the second end, the height of the lifting part can be increased so that the lifting part can abut against the inner side wall of the extrusion cylinder upwards, and therefore the extrusion cylinder ascends relative to the extrusion sleeve so as to release connection between the extrusion cylinder and the extrusion sleeve. Thus, after the lifting part is pushed to enable the extrusion cylinder to slightly ascend and the connection between the extrusion cylinder and the extrusion sleeve is released, a dismounting worker can translate the extrusion sleeve to enable the extrusion sleeve to be far away from the extrusion cylinder, so that the direct friction between the extrusion cylinder and the extrusion sleeve is reduced, and the extrusion cylinder and the extrusion sleeve are protected to a great extent; the service life of the two parts is effectively prolonged, and the operation difficulty and the danger coefficient are reduced.

Description

Technical Field

[0001] This invention belongs to the field of extrusion cylinder disassembly technology, specifically involving disassembly and assembly tools and methods. Background Technology

[0002] Currently, extrusion presses are the main equipment for producing light alloy (aluminum alloy, copper alloy, and magnesium alloy) tubes, bars, and profiles. They primarily use an extrusion rod to extrude the high-temperature light alloy from the extrusion cylinder into a forming die, where the product is formed. In actual production, there are situations where the extrusion cylinder needs to be replaced. When replacing the extrusion cylinder, it needs to be pushed out relative to the extrusion sleeve. For example, Chinese patent CN205324375U discloses an extrusion cylinder removal device. This patent describes a device comprising side plates, a top plate, and a lifting ring. Two top plates intersect perpendicularly, and the ends of the right-angle plate formed by the two top plates are welded perpendicularly to the side plates. The height of the side plates is greater than the inner diameter of the extrusion cylinder but less than its outer diameter. This device replaces the original square timber, placing it directly on the top plate of the extrusion rod. The side plates are in close contact with the extrusion cylinder, directly transferring the thrust of the extrusion rod to the side plates, thereby achieving extrusion cylinder removal. This method is stable, reliable, safe, and does not repeat, improving removal efficiency.

[0003] However, existing extrusion cylinder removal devices all directly push the extrusion cylinder out of the extrusion sleeve. During this process, significant direct friction occurs between the extrusion cylinder and the extrusion sleeve. This friction not only easily leads to wear on both the extrusion cylinder and the extrusion sleeve, affecting their accuracy and service life, but also poses a safety hazard to operators due to the generally heavy weight of the extrusion cylinder and the difficulty of direct pushing. Summary of the Invention

[0004] In order to overcome at least one of the defects described in the prior art, the present invention provides a disassembly and assembly tooling and a disassembly and assembly method to solve the problems of high direct friction between the extrusion cylinder and the extrusion sleeve, which easily causes wear, and low operation safety and poor convenience when the extrusion cylinder is removed by the existing extrusion cylinder removal device.

[0005] The technical solution adopted by this invention to solve its problem is: A disassembly and assembly fixture for an extrusion press, the extrusion press including an extrusion cylinder and an extrusion sleeve, the extrusion sleeve being fitted onto the extrusion cylinder, characterized in that the disassembly and assembly fixture includes: a base body for being disposed inside the extrusion cylinder, the base body having a first end and a second end; a lifting member slidably disposed on the upper side of the base body; when the lifting member slides along the direction from the first end to the second end, the height of the lifting member can increase to push upward against the inner wall of the extrusion cylinder, thereby causing the extrusion cylinder to rise relative to the extrusion sleeve to release the connection between the extrusion cylinder and the extrusion sleeve.

[0006] As an optional implementation, the seat has a guide ramp extending upward from the first end to the second end, and the lifting member has a sliding ramp adapted to the guide ramp, the sliding ramp and the guide ramp being slidably connected.

[0007] As an optional implementation, the angle between the guide ramp and the horizontal plane is 0.5° to 1.5°.

[0008] As an optional implementation, the lifting member has a first cross section along the direction from the first end to the second end, the upper side of the first cross section being parallel to the horizontal plane.

[0009] As an optional implementation, the base includes a connecting seat and a top plate, the top plate being detachably connected to the connecting seat, the top plate being the first end, and the second end being the end of the connecting seat away from the top plate; the top plate and the second end are used to jointly clamp the axial sides of the extrusion cylinder.

[0010] As an optional implementation, the first end is provided with a slot for connecting the extrusion rod of the extruder, and one end of the lifting member is located in the slot and is used to connect the extrusion rod.

[0011] As an optional implementation, the second end is provided with a snap-fit ​​structure for connecting with the mold base.

[0012] As an optional implementation, the disassembly and assembly fixture further includes a moving device and a lifting device; after the lifting member is pushed to disengage the connection between the extrusion cylinder and the extrusion sleeve, the moving device is used to translate the extrusion sleeve to move the extrusion sleeve away from the extrusion cylinder, and then the lifting device is used to connect with the lifting structure provided on the extrusion cylinder.

[0013] In addition, the present invention also provides a disassembly and assembly method, which uses the disassembly and assembly tooling described in any of the above embodiments to disassemble and assemble the extrusion cylinder located in the extrusion sleeve. The disassembly and assembly method includes the following steps: placing the seat body in the extrusion cylinder, and then pushing the lifting member in the direction from the first end to the second end to increase the height of the lifting member. When the height of the lifting member increases, it can push upward against the inner sidewall of the extrusion cylinder, thereby detaching the connection between the extrusion cylinder and the extrusion sleeve; after detaching the connection between the extrusion cylinder and the extrusion sleeve by pushing the lifting member, driving the extrusion sleeve to translate so that the extrusion sleeve moves away from the extrusion cylinder.

[0014] As an optional implementation, the disassembly and assembly method includes the following steps: connecting the extrusion rod of the extruder to the first end and making the extrusion rod abut against the lifting member, and connecting the die base of the extruder to the second end, driving the extrusion rod to move can push the lifting member in the direction from the first end to the second end.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Firstly, by pushing the lifting component to slightly raise the extrusion cylinder, the connection between the extrusion cylinder and the extrusion sleeve is released. Then, the disassembly and assembly personnel can move the extrusion sleeve horizontally to move it away from the extrusion cylinder. This method reduces the direct friction between the extrusion cylinder and the extrusion sleeve, greatly protects the extrusion cylinder and the extrusion sleeve, effectively extends the service life of these two components, and reduces the maintenance cost of the equipment.

[0016] Secondly, using this disassembly and assembly tool to disassemble and assemble the extrusion cylinder makes the operation process simpler. Operators only need to operate the lifting device to raise the extrusion cylinder and move the extrusion sleeve to complete the disassembly work. Unlike the traditional method, there is no need to directly push the extrusion cylinder, which reduces the difficulty and risk factor of operation, significantly improves the safety of operators, greatly improves the convenience of operation, and improves production efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a cross-sectional structural diagram of the disassembly and assembly tooling according to an embodiment of this application; Figure 2 This is a schematic diagram of the assembly and disassembly tooling (when the extrusion rod does not push the lifting part) of this application being used in an extrusion press. Figure 3 This is a schematic diagram of the structure of the extrusion cylinder and the extrusion cylinder when connected according to an embodiment of this application; Figure 4 yes Figure 3 Enlarged view of part A in the middle; Figure 5 This is a schematic diagram of the assembly and disassembly tooling (when the extrusion rod pushes the lifting part) of this application being used in an extrusion press. Figure 6 This is a schematic diagram of the extrusion cylinder and the extrusion cylinder when the connection is disconnected according to an embodiment of this application; Figure 7 yes Figure 6 A magnified view of part B in the middle.

[0019] Explanation of key figure labels: 1. Base; 11. First end; 12. Second end; 121. Snap-fit ​​structure; 13. Guide slope; 14. Connecting seat; 15. Top plate; 151. Slot; 152. Connecting port; 2. Lifting component; 21. Sliding slope; 3. Extrusion sleeve; 31. Limit key; 4. Extrusion cylinder; 41. Keyway; 5. Extrusion rod; 6. Mold base; 7. Lifting device. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0022] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0023] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0024] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0025] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0026] Example 1 Please see Figures 1 to 7 This application provides a disassembly and assembly fixture for an extruder. The extruder includes an extrusion cylinder 4 and an extrusion sleeve 3, with the extrusion sleeve 3 fitted onto the extrusion cylinder 4. The disassembly and assembly fixture includes a base 1 and a lifting member 2. The base 1 is disposed inside the extrusion cylinder 4 and has a first end 11 and a second end 12. The lifting member 2 is slidably disposed on the upper side of the base 1. When the lifting member 2 slides along the direction from the first end 11 to the second end 12, the height of the lifting member 2 can increase to push upward against the inner wall of the extrusion cylinder 4, thereby causing the extrusion cylinder 4 to rise relative to the extrusion sleeve 3 to release the connection between the extrusion cylinder 4 and the extrusion sleeve 3.

[0027] The disassembly and assembly fixture provided in this application has two main aspects. First, by pushing the lifting member 2 to slightly raise the extrusion cylinder 4 and disconnect the connection between the extrusion cylinder 4 and the extrusion sleeve 3, the disassembly and assembly personnel can move the extrusion sleeve 3 away from the extrusion cylinder 4. This method reduces direct friction between the extrusion cylinder 4 and the extrusion sleeve 3, greatly protecting both components, effectively extending their service life, and reducing equipment maintenance costs. Second, using this disassembly and assembly fixture to disassemble and assemble the extrusion cylinder 4 simplifies the operation process. The operator only needs to operate the lifting member 2 to raise the extrusion cylinder 4 and move the extrusion sleeve 3 to complete the disassembly work, without having to directly push the extrusion cylinder 4 as in traditional methods. This reduces the difficulty and risk factor of operation, significantly improves operator safety, greatly enhances operational convenience, and increases production efficiency.

[0028] It should be noted that the base 1, as the basic support component of the entire assembly and disassembly fixture, can be reasonably designed in shape and size according to the internal structure of the extrusion cylinder 4 to ensure that it can be stably placed inside the extrusion cylinder 4 and provide a reliable support platform for the lifting component 2.

[0029] It should be noted that one of the extrusion sleeve 3 and the extrusion cylinder 4 is provided with a keyway 41 extending along the axial direction, and the other is provided with a limiting key 31 extending along the axial direction. When the limiting key 31 is connected to the keyway 41, the connection between the extrusion sleeve 3 and the extrusion cylinder 4 can be realized. When the limiting key 31 and the keyway 41 are separated, the connection between the extrusion sleeve 3 and the extrusion cylinder 4 can be released.

[0030] In one embodiment, both the lifting member 2 and the seat 1 extend laterally, and the extending directions of the lifting member 2 and the seat 1 are substantially parallel to the axial direction of the extrusion cylinder 4.

[0031] For example, in one implementation, such as Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the extrusion cylinder 4 is provided with a keyway 41 and a limit key 31; please refer to Figure 3 and Figure 4 When the extrusion cylinder 4 and the extrusion sleeve 3 are connected, there is a gap between the lower side of the keyway 41 and the lower side of the limiting groove, but the upper side of the keyway 41 can be connected to the upper side of the limiting groove to fix the relative position of the extrusion cylinder 4 and the extrusion sleeve 3; please refer to Figure 6 and Figure 7 When it is necessary to disconnect the extrusion cylinder 4 and the extrusion sleeve 3, the lifting member 2 is pushed to make the extrusion cylinder 4 rise slightly, thereby forming a certain gap between the upper side of the keyway 41 and the upper side of the limiting groove. At this time, a certain gap is still maintained between the lower side of the keyway 41 and the lower side of the limiting groove. In this way, the keyway 41 and the limiting key 31 are separated, thereby realizing the disconnection between the extrusion cylinder 4 and the extrusion sleeve 3.

[0032] like Figure 1 , Figure 2 and Figure 5As shown, in one embodiment, the base 1 has a guide ramp 13 extending upwards from the first end 11 to the second end 12. The lifting member 2 has a sliding ramp 21 adapted to the guide ramp 13, and the sliding ramp 21 and the guide ramp 13 are slidably connected. Thus, in the first aspect, during operation, the lifting member 2 can only slide stably along the direction set by the guide ramp 13, avoiding deviation or wobbling. This ensures that when the lifting member 2 is pushed to raise the extrusion cylinder 4, the direction of the force is accurate and can evenly push upwards against the inner wall of the extrusion cylinder 4, allowing the extrusion cylinder 4 to rise smoothly relative to the extrusion sleeve 3, thereby more reliably disconnecting the connection between the extrusion cylinder 4 and the extrusion sleeve 3. Secondly, the cooperation between the guide ramp 13 and the sliding ramp 21 makes the height adjustment of the lifting component 2 smoother. As the lifting component 2 slides along the guide ramp 13, its height gradually changes according to the preset slope, without any sudden changes in height. This smooth height adjustment method allows operators to accurately control the rising height of the extrusion cylinder 4, enabling them to raise the extrusion cylinder 4 to a suitable position to disconnect it from the extrusion sleeve 3 according to actual needs, thus avoiding operational difficulties or equipment damage caused by inaccurate height adjustment. Thirdly, operators do not need to possess advanced skills or extensive experience. They only need to smoothly push the lifting component 2 along the guide ramp 13 to gradually increase its height and achieve a slight rise in the extrusion cylinder 4. This simple and easy-to-use operation method reduces the requirements for operators, decreases the risk of equipment damage or safety accidents caused by improper operation, and also improves overall work efficiency.

[0033] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the angle between the guide ramp 13 and the horizontal plane is 0.5° to 1.5°. This small angle design ensures that the height change of the lifting member 2 is extremely smooth and precise as it slides along the guide ramp 13. During the process of pushing the lifting member 2 to raise the extrusion cylinder 4, the extrusion cylinder 4 will not experience violent shaking or vibration due to sudden height changes, and can rise gradually in an extremely stable state, thereby precisely disengaging from the extrusion sleeve 3. This smooth and precise lifting action is crucial for protecting the precision structure of the extrusion cylinder 4 and the extrusion sleeve 3, avoiding component deformation or damage that may be caused by rapid and violent lifting, and ensuring the quality and performance of the extruder components.

[0034] It should be noted that in some other embodiments, the angle between the guide slope 13 and the horizontal plane can be, but is not limited to, 2°-5°, etc., and can be selected according to actual needs. There is no single limitation here.

[0035] It should be noted that in some other embodiments, a lifting structure may be provided on the seat 1 to increase the height of the lifting member 2. Specifically, when the lifting member 2 slides a certain distance relative to the seat 1, the lifting structure is triggered to push the lifting member 2 upward, thereby increasing the distance of the lifting member 2. For example, the lifting structure may be, but is not limited to, a spring or elastic rubber, etc., and can be selected according to actual needs.

[0036] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the lifting member 2 has a first cross section along the direction from the first end 11 to the second end 12. The upper side of the first cross section is parallel to the horizontal plane. This allows the upper side of the lifting member 2 to better contact the inner wall of the extrusion cylinder 4. Thus, when the extrusion cylinder 4 is lifted, the force can be evenly distributed on the inner wall of the extrusion cylinder 4, avoiding deformation or damage to the extrusion cylinder 4 due to excessive or insufficient local force.

[0037] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the base 1 includes a connecting seat 14 and a top plate 15. The top plate 15 is detachably connected to the connecting seat 14. The top plate 15 is a first end 11, and the second end 12 is the end of the connecting seat 14 away from the top plate 15. The top plate 15 and the second end 12 are used to jointly clamp the axial sides of the extrusion cylinder 4. When installing the base 1, the connecting seat 14 can be placed into the extrusion cylinder 4 first, and the second end 12 can be pressed against the second side of the extrusion cylinder 4. Then, the top plate 15 can be connected to the connecting seat 14 and pressed against the first side of the extrusion cylinder, so that the top plate 15 and the second end 12 jointly clamp the axial sides of the extrusion cylinder 4. In this way, firstly, during disassembly and assembly, the bidirectional clamping can effectively restrict the axial movement of the extrusion cylinder 4, thereby preventing the extrusion cylinder 4 from shifting or shaking during disassembly and assembly, and ensuring the stability and reliability of the disassembly and assembly process. Secondly, this detachable base 1 structure has a certain degree of versatility. It can be adapted to extrusion cylinders 4 of different specifications by replacing the top plate 15 or connecting seat 14 of different sizes. As long as the design of the top plate 15 and connecting seat 14 can meet the clamping requirements of the extrusion cylinder 4 of the corresponding size, the base 1 can be applied to extrusion cylinders 4 of different specifications, reducing the cost and workload of designing special base 1 for extrusion cylinders 4 of different specifications.

[0038] In one embodiment, the connecting seat 14 and the top plate 15 are connected by screws. It should be noted that in some other embodiments, the connecting seat 14 and the top plate 15 may also be connected by, but not limited to, pins. The choice can be made according to actual needs, and no single limitation is made here.

[0039] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the first end 11 is used to connect to the extrusion rod 5 of the extruder, and one end of the lifting member 2 is used to connect to the extrusion rod 5. The existing extrusion rod 5 of the extruder is used to push the lifting member 2, eliminating the need for additional complex drive equipment or tools. The operator only needs to connect the extrusion rod 5 to the first end 11 of the base 1 according to predetermined steps, making the extrusion rod 5 abut against the lifting member 2, and then the lifting member 2 can be moved by driving the extrusion rod 5. This operation method greatly simplifies the disassembly and assembly process, reduces operational steps, and saves operation time. Furthermore, after the extrusion sleeve 3 is moved away from the extrusion cylinder 4, the extrusion rod 5 can be retracted away from the first end 11, thereby lifting the extrusion cylinder 4 away.

[0040] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the first end 11 is provided with a slot 151 for connecting the extrusion rod 5 of the extruder. One end of the lifting member 2 is located in the slot 151 and is used to connect the extrusion rod 5. Thus, the slot 151 guides the connection between the extrusion rod 5 and the lifting member 2. Activating the extrusion rod 5 pushes the lifting member 2 to increase its height, thereby slightly raising the extrusion cylinder 4 and disengaging the connection between the extrusion cylinder 4 and the extrusion sleeve 3. In this way, firstly, the slot 151 provides precise guidance for the connection between the extrusion rod 5 and the lifting member 2. During the connection process, the extrusion rod 5 can accurately insert along the path of the slot 151 and mate with the lifting member 2, avoiding connection deviations caused by manual operation or equipment vibration. This precise positioning ensures that the direction of the force applied by the extrusion rod 5 to the lifting member 2 is accurate, allowing the lifting member 2 to be pushed in the expected manner, thereby ensuring the stability and accuracy of the entire extrusion cylinder 4 rising process. Secondly, the method of using slot 151 to guide the connection between the extrusion rod 5 and the lifting component 2 simplifies the entire operation process. The operator only needs to insert the extrusion rod 5 into slot 151 and connect it with the lifting component 2, and then start the extrusion rod 5 to complete the increase in the height of the lifting component 2 and the raising of the extrusion cylinder 4. There is no need for complicated mechanical adjustments or additional tools. This simplified operation process reduces the skill level required of the operator, reduces the possibility of human error, and improves the reliability and safety of the operation.

[0041] like Figure 1 , Figure 2 and Figure 5 As shown, in one embodiment, the slot 151 is provided with a communication port 152 through which the lifting member 2 passes.

[0042] In one embodiment, the second end 12 is provided with a snap-fit ​​structure 121, which is used to connect with the mold base 6. In this way, the mold base 6 is used to limit the second end 12, thereby preventing the base 1 from shaking during the assembly and disassembly of the extrusion cylinder 4.

[0043] like Figure 5 As shown, in one embodiment, the disassembly and assembly fixture further includes a moving device (not shown) and a lifting device 7. After pushing the lifting member 2 to disengage the connection between the extrusion cylinder 4 and the extrusion sleeve 3, the moving device is used to move the extrusion sleeve 3 horizontally so that the extrusion sleeve 3 is away from the extrusion cylinder 4. Then, the lifting device 7 is used to connect with the lifting structure provided on the extrusion cylinder 4. Thus, in the traditional disassembly and assembly process of the extrusion cylinder 4 and the extrusion sleeve 3, operators often need to manually carry and move the extrusion sleeve 3, which is not only labor-intensive but also cumbersome. In this embodiment, after pushing the lifting member 2 to disengage the connection between the extrusion cylinder 4 and the extrusion sleeve 3, the moving device can automatically move the extrusion sleeve 3 horizontally so that it is away from the extrusion cylinder 4, eliminating the need for operators to manually move it. Afterward, the lifting device 7 directly connects with the lifting structure on the extrusion cylinder 4 to lift the extrusion cylinder 4 away, further simplifying the operation process and reducing the complexity and difficulty of the operation.

[0044] Example 2 This embodiment discloses a disassembly and assembly method, which uses a disassembly and assembly tooling as described in any of the embodiments in Embodiment 1. The disassembly and assembly tooling is used to disassemble and assemble the extrusion cylinder 4 located inside the extrusion sleeve 3. The disassembly and assembly method includes the following steps: The seat 1 is placed inside the extrusion cylinder 4, and then the lifting member 2 is pushed along the direction from the first end 11 to the second end 12 to increase the height of the lifting member 2. When the height of the lifting member 2 increases, it can push upward against the inner wall of the extrusion cylinder 4, thereby disconnecting the connection between the extrusion cylinder 4 and the extrusion sleeve 3. After the connection between the extrusion cylinder 4 and the extrusion sleeve 3 is disconnected by pushing the lifting member 2, the extrusion sleeve 3 is driven to move horizontally so that the extrusion sleeve 3 moves away from the extrusion cylinder 4.

[0045] The disassembly and assembly method provided in this embodiment has several advantages. First, by raising the extrusion cylinder 4 relative to the extrusion sleeve 3 using the lifting component 2, the connection is released. This avoids large-area direct friction between the extrusion cylinder 4 and the extrusion sleeve 3 when directly pushing the extrusion cylinder 4, significantly reducing wear on both components. This helps maintain the precision of the extrusion cylinder 4 and the extrusion sleeve 3, improves the molding quality of the product, and extends the service life of the extrusion cylinder 4 and the extrusion sleeve 3, thus reducing the company's equipment maintenance and replacement costs. Second, since it is not necessary to apply a large pushing force to the heavier extrusion cylinder 4 to overcome the friction between it and the extrusion sleeve 3, the operator only needs to push the lifting component 2 and drive the extrusion sleeve 3 to move horizontally. The operation process is easier and less strenuous, reducing the strength and skill requirements for the operator and alleviating the operator's labor intensity. Third, it reduces direct contact between the operator and the extrusion cylinder 4 and the potential dangers caused by directly pushing heavy objects, reducing the risk of safety accidents and providing a safer working environment for the operator. Furthermore, the simple and labor-saving operation allows the entire disassembly and assembly process to be completed more quickly, reducing equipment downtime and improving production efficiency.

[0046] Understandably, after the connection between the extrusion cylinder 4 and the extrusion sleeve 3 is released by pushing the lifting component 2, the extrusion sleeve 3 is driven to move horizontally, moving away from the extrusion cylinder 4, thus completing the disassembly of the extrusion cylinder 4. When installing the extrusion cylinder 4, the reverse steps can be followed.

[0047] It should be noted that one of the extrusion sleeve 3 and the extrusion cylinder 4 is provided with a keyway 41 extending along the axial direction, and the other is provided with a limiting key 31 extending along the axial direction. When the limiting key 31 is connected to the keyway 41, the connection between the extrusion sleeve 3 and the extrusion cylinder 4 can be realized. When the limiting key 31 and the keyway 41 are separated, the connection between the extrusion sleeve 3 and the extrusion cylinder 4 can be released.

[0048] For example, in one embodiment, the extrusion cylinder 4 is provided with a keyway 41 and a limiting key 31. When the extrusion cylinder 4 and the extrusion sleeve 3 are connected, there is a gap between the lower side of the keyway 41 and the lower side of the limiting groove, but the upper side of the keyway 41 can be connected to the upper side of the limiting groove to fix the relative position of the extrusion cylinder 4 and the extrusion sleeve 3. When it is necessary to disconnect the connection between the extrusion cylinder 4 and the extrusion sleeve 3, the lifting member 2 is pushed to make the extrusion cylinder 4 rise slightly, thereby forming a certain gap between the upper side of the keyway 41 and the upper side of the limiting groove. At this time, a certain gap is still maintained between the lower side of the keyway 41 and the lower side of the limiting groove. In this way, the keyway 41 and the limiting key 31 are separated, thereby realizing the disconnection between the extrusion cylinder 4 and the extrusion sleeve 3.

[0049] In one embodiment, the disassembly and assembly method further includes the following steps: connecting the extrusion rod 5 of the extruder to the first end 11 and making the extrusion rod 5 abut against the lifting member 2, and connecting the die holder 6 of the extruder to the second end 12. Driving the extrusion rod 5 to move can push the lifting member 2 along the direction from the first end 11 to the second end 12. In this way, the existing extrusion rod 5 of the extruder is used to push the lifting member 2, and the existing die holder 6 of the extruder is used to limit the position of the seat 1, without the need for additional complex drive equipment or tools. The operator only needs to follow the predetermined steps to connect the extrusion rod 5 to the first end 11 of the seat 1, make the extrusion rod 5 abut against the lifting member 2, and connect the die holder 6 to the second end 12, and the movement of the lifting member 2 can be achieved by driving the extrusion rod 5; this operation method greatly simplifies the disassembly and assembly process, reduces operation steps, and saves operation time. Furthermore, after the extrusion sleeve 3 is moved away from the extrusion cylinder 4, the extrusion rod 5 can be retracted to move away from the first end 11, thereby lifting the extrusion cylinder 4 away.

[0050] In one embodiment, the disassembly and assembly fixture further includes a moving device and a lifting device 7; the disassembly and assembly method further includes the following steps: after pushing the lifting member 2 to disengage the connection between the extrusion cylinder 4 and the extrusion sleeve 3, the moving device is used to translate the extrusion sleeve 3 so that the extrusion sleeve 3 is away from the extrusion cylinder 4. After the extrusion sleeve 3 is moved away from the extrusion cylinder 4 by the moving device, the extrusion rod 5 can be retracted to move away from the first end 11. Then, the lifting device 7 is used to connect with the lifting structure provided on the extrusion cylinder 4 to lift the extrusion cylinder 4 away. Thus, the introduction of the moving device and the lifting device 7 enables the translation of the extrusion sleeve 3 and the subsequent processing of the extrusion cylinder 4 to be mechanized. In traditional disassembly and assembly methods, the movement of the extrusion sleeve 3 and the handling of the extrusion cylinder 4 often require multiple operators to manually complete, which is not only labor-intensive but also inefficient. In this embodiment, the extrusion sleeve 3 is automatically translated by the moving device, and the extrusion cylinder 4 is precisely connected to the extrusion cylinder 4 and lifted away by the lifting device 7, which greatly reduces the links of direct manual operation, reduces the dependence on the number of operators, and improves the automation level of the disassembly and assembly process.

[0051] In one embodiment, the base 1 includes a connecting seat 14 and a top plate 15. The top plate 15 is detachably connected to the connecting seat 14. The top plate 15 is a first end 11, and the second end 12 is the end of the connecting seat 14 away from the top plate 15. The top plate 15 and the second end 12 are used to jointly clamp the axial sides of the extrusion cylinder 4. The disassembly and assembly method further includes the following steps: when installing the base 1, the connecting seat 14 can be placed into the extrusion cylinder 4 first, and the second end 12 can be pressed against the second side of the extrusion cylinder 4. Then, the top plate 15 can be connected to the connecting seat 14 and the top plate 15 can be pressed against the first side of the extrusion cylinder, so that the top plate 15 and the second end 12 jointly clamp the axial sides of the extrusion cylinder 4. Thus, firstly, this design allows for simultaneous application of force from both axial ends of the extrusion cylinder 4, effectively restricting its axial movement. Whether during the disconnection of the extrusion cylinder 4 from the extrusion sleeve 3, or during subsequent movement of the extrusion sleeve 3 or hoisting of the extrusion cylinder 4, the extrusion cylinder 4 will not experience axial movement due to external forces, ensuring the accuracy and stability of the disassembly and assembly operations. Secondly, the bidirectional clamping not only restricts axial movement but also reduces, to some extent, the swaying and offset of the extrusion cylinder 4 in the radial and circumferential directions. During disassembly and assembly, factors such as equipment vibration and external interference may cause changes in the position of the extrusion cylinder 4. The combined action of the top plate 15 and the second end 12 forms a relatively stable support and constraint system, ensuring that the extrusion cylinder 4 remains in the correct position and preventing swaying or offset from affecting the quality of disassembly and assembly.

[0052] In summary, the disassembly and assembly tooling and method disclosed in this invention can bring at least the following beneficial technical effects: (1) By pushing the lifting part 2 to raise the extrusion cylinder 4 to release the connection with the extrusion sleeve 3, the direct friction between the two is reduced, which greatly protects the extrusion cylinder 4 and the extrusion sleeve 3, helps to maintain their accuracy, extends the service life of these two parts, and reduces the equipment maintenance and replacement costs of the enterprise.

[0053] (2) By using disassembly and assembly tools and corresponding methods, operators only need to operate the lifting part 2 and drive the extrusion sleeve 3 to move horizontally, without having to directly push the heavier extrusion cylinder 4. The operation process is easier and less strenuous, reducing the requirements for the strength and skills of the operators and alleviating the labor intensity. At the same time, it reduces the direct contact between the operator and the extrusion cylinder 4 and the potential dangers caused by directly pushing heavy objects, reducing the risk of safety accidents and providing a safer working environment.

[0054] (3) The bidirectional clamping design of the base 1 can effectively limit the movement and shaking of the extrusion cylinder 4 in the axial, radial and circumferential directions during disassembly and assembly, ensuring the stability of the position of the extrusion cylinder 4 during disassembly and assembly, ensuring the accuracy and stability of disassembly and assembly operations, avoiding the impact of shaking or offset on the disassembly and assembly quality, and maintaining the fitting accuracy between components.

[0055] (4) The disassembly and assembly tooling is equipped with a moving device and a hoisting device 7. The moving device can automatically move the extrusion sleeve 3, and the hoisting device 7 can accurately connect the extrusion cylinder 4 and lift it away. This realizes the mechanized operation of moving the extrusion sleeve 3 and the subsequent processing of the extrusion cylinder 4, reduces the direct manual operation links, reduces the dependence on the number of operators, makes the entire disassembly and assembly process faster, reduces equipment downtime, and improves production efficiency.

[0056] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A disassembly and assembly fixture for an extrusion press, the extrusion press comprising an extrusion cylinder (4) and an extrusion sleeve (3), the extrusion sleeve (3) being fitted onto the extrusion cylinder (4), characterized in that, The disassembly / assembly fixtures include: A seat (1) is used to be disposed inside the extrusion cylinder (4), the seat (1) having a first end (11) and a second end (12); The lifting member (2) is slidably disposed on the upper side of the seat (1); when the lifting member (2) slides along the direction from the first end (11) to the second end (12), the height of the lifting member (2) can increase to push the inner wall of the extrusion cylinder (4) upward, thereby causing the extrusion cylinder (4) to rise relative to the extrusion sleeve (3) to release the connection between the extrusion cylinder (4) and the extrusion sleeve (3).

2. The disassembly and assembly fixture according to claim 1, characterized in that, The seat (1) has a guide slope (13) that extends from the first end (11) to the second end (12) and is inclined upward. The lifting member (2) has a sliding slope (21) that is adapted to the guide slope (13). The sliding slope (21) and the guide slope (13) are slidably connected.

3. The disassembly and assembly fixture according to claim 2, characterized in that, The angle between the guide ramp (13) and the horizontal plane is 0.5° to 1.5°.

4. The disassembly and assembly fixture according to claim 2, characterized in that, The lifting member (2) has a first cross section along the direction from the first end (11) to the second end (12), and the upper side of the first cross section is parallel to the horizontal plane.

5. The disassembly and assembly fixture according to claim 1, characterized in that, The seat (1) includes a connecting seat (14) and a top plate (15). The top plate (15) is detachably connected to the connecting seat (14). The top plate (15) is the first end (11), and the second end (12) is the end of the connecting seat (14) away from the top plate (15). The top plate (15) and the second end (12) are used to jointly clamp the axial sides of the extrusion cylinder (4).

6. The disassembly and assembly fixture according to claim 1, characterized in that, The first end (11) is provided with a slot (151) for connecting the extrusion rod (5) of the extruder. One end of the lifting member (2) is located in the slot (151) and is used to connect the extrusion rod (5).

7. The disassembly and assembly fixture according to claim 1, characterized in that, The second end (12) is provided with a snap-fit ​​structure (121), which is used to connect with the mold base (6).

8. The disassembly and assembly fixture according to claim 1, characterized in that, The disassembly and assembly tooling also includes a moving device and a hoisting device (7); after the lifting member (2) is pushed to release the connection between the extrusion cylinder (4) and the extrusion sleeve (3), the moving device is used to move the extrusion sleeve (3) so that the extrusion sleeve (3) is away from the extrusion cylinder (4), and then the hoisting device (7) is used to connect with the hoisting structure provided on the extrusion cylinder (4).

9. A disassembly and assembly method, characterized in that, Using the disassembly and assembly tooling as described in any one of claims 1-8, the extrusion cylinder (4) located inside the extrusion sleeve (3) is disassembled and assembled using the disassembly and assembly tooling, and the disassembly and assembly method includes the following steps: The seat (1) is placed inside the extrusion cylinder (4), and then the lifting member (2) is pushed along the direction from the first end (11) to the second end (12) to increase the height of the lifting member (2). When the height of the lifting member (2) increases, it can push against the inner wall of the extrusion cylinder (4) upward, thereby detaching the connection between the extrusion cylinder (4) and the extrusion sleeve (3). After the connection between the extrusion cylinder (4) and the extrusion sleeve (3) is released by pushing the lifting member (2), the extrusion sleeve (3) is driven to translate so that the extrusion sleeve (3) moves away from the extrusion cylinder (4).

10. The disassembly and assembly method according to claim 9, characterized in that, The disassembly and assembly method includes the following steps: The extrusion rod (5) of the extruder is connected to the first end (11) and the extrusion rod (5) abuts against the lifting member (2), and the die base (6) of the extruder is connected to the second end (12). Driving the extrusion rod (5) to move can push the lifting member (2) in the direction from the first end (11) to the second end (12).

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