Dismounting device for ejection cylinder of pressing machine

Abstract

The utility model relates to the field of press maintenance, in particular to a press ejection cylinder dismounting device which comprises a support, a driving assembly and a traction assembly, the support comprises a top plate and supporting legs, the supporting legs are fixed to the bottom face of the top plate, the driving assembly is installed on the side face of the top plate, the traction assembly is installed on the top plate, and the traction assembly is connected with the driving assembly and an ejection cylinder. And the driving assembly comprises a motor, and the traction assembly is driven by the motor, so that the ejection cylinder moves in the vertical direction. The problem that the ejection cylinder is easily clamped in the press when the ejection cylinder is dismounted and mounted is solved, the maintenance operation efficiency of dismounting and the like of the ejection cylinder is improved, the operation safety is enhanced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of press maintenance, in particular to a disassembly device for a press ejection cylinder. Background Art

[0002] During the use of the press, it is necessary to repair the ejector cylinder, clamping cylinder, etc. of the press within a period of time to improve work efficiency.

[0003] In the current maintenance process, the distance between the working platform and the moving beam of the press is often too narrow, and the maintenance personnel cannot enter the work surface to operate, so it is difficult to take out the required cylinder body. At the same time, the seal is easily displaced during installation. These problems limit the maintenance work efficiency and pressing quality. Generally, during the maintenance process, the ejection cylinder or the clamping cylinder needs to be lifted out from the lower working oil circuit board of the press. However, due to the short height distance between the moving beam and the lower oil circuit board, the maintenance personnel cannot enter this area and extract the cylinder body; if enough space is required, a forklift is required to remove the upper magnetic suction plate, and the workload of this operation is very large. The current lifting method usually requires two people to operate. The lifting rings are installed on both sides of the ejection cylinder or the clamping cylinder, and two iron rods are inserted into the lifting rings. Both sides are lifted out at the same time. The operation is cumbersome. Because there is hydraulic oil on the press, the inserted iron rods are easy to slide, which poses safety risks and maintenance quality hazards. Moreover, during the operation, if the two people do not apply force evenly, the cylinder body may get stuck easily, resulting in the ejector cylinder being unable to be taken out smoothly. In addition, this traditional lifting method is not easy to accurately position, and may also cause displacement of the ejector cylinder seal installation or damage to other parts of the press, resulting in secondary failures and increasing the difficulty and time of maintenance.

[0004] Therefore, the prior art still needs to be improved and developed. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present application aims to provide a disassembly device for a press ejector cylinder, aiming to improve the disassembly efficiency of the press ejector cylinder, ensure the safety of the ejector cylinder disassembly process, and extend the service life of the equipment.

[0006] The technical solution adopted by the present application to solve the technical problem is as follows: a disassembly device for a press ejection cylinder, comprising:

[0007] A bracket, the bracket comprising a top plate and legs, the legs being fixed to the bottom surface of the top plate;

[0008] A drive assembly, the drive assembly being mounted on a side of the top plate;

[0009] A pulling assembly, the pulling assembly is mounted on the top plate, and the pulling assembly connects the driving assembly and the ejection cylinder so that the driving assembly lifts the ejection cylinder or the clamping cylinder;

[0010] The driving assembly includes a motor, and the pulling assembly is driven by the motor to move the ejection cylinder in an up-and-down direction.

[0011] Furthermore, the pulling assembly includes a lifting ring and a traction rope, the lifting ring is detachably mounted on the ejection cylinder, one end of the traction rope is connected to the driving assembly, and the other end of the traction rope is connected to the lifting ring.

[0012] Furthermore, the pulling assembly also includes a plurality of traction wheels, the traction wheels are mounted on the top plate, and the traction ropes are rollingly mounted on the traction wheels.

[0013] Further, the traction wheel includes a first roller and a second roller, and the first roller and the second roller are installed on the top plate at intervals along the length direction of the top plate.

[0014] Furthermore, a traction hole is provided on the top plate.

[0015] Furthermore, a pulley is provided at the bottom of the supporting leg to enable the bracket to move.

[0016] Furthermore, the supporting leg also includes a fixing piece to fix the position of the bracket.

[0017] Furthermore, the motor is transmission-connected to the traction rope.

[0018] Furthermore, the driving assembly also includes a reducer, and the motor is drivingly connected to the reducer to control the moving speed of the traction rope.

[0019] Furthermore, the disassembly device of the press ejection cylinder is also provided with an emergency stop switch to stop the operation of the disassembly device of the press ejection cylinder.

[0020] Beneficial effects:

[0021] The present application provides a disassembly device for an ejector cylinder of a press, wherein the ejector cylinder of the press is pulled by a pulling assembly so that the ejector cylinder is lifted and lowered relative to the press, and a driving assembly is used to drive the pulling assembly to pull the ejector cylinder of the press, and at the same time, a motor controls the operation of the pulling assembly so that the ejector cylinder can be lifted and lowered smoothly relative to the press, thereby improving the efficiency of maintenance operations such as disassembly of the ejector cylinder, reducing the use of manpower, enhancing the safety of operation, and also extending the service life of the equipment, thereby avoiding damage to the equipment due to manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of a disassembly device for ejecting a cylinder of a medium-pressure machine according to the utility model;

[0023] Figure 2It is a front view of the disassembly device of the ejection cylinder of the medium-pressure machine of the utility model;

[0024] Figure 3 It is a top view of the disassembly device of the ejection cylinder of the medium press according to the utility model.

[0025] Description of reference numerals:

[0026] 1. Bracket; 11. Top plate; 111. Towing hole; 12. Leg; 121. Pulley; 122. Fixing piece; 2. Driving assembly; 21. Motor; 22. Reducer; 3. Pulling assembly; 31. Lifting ring; 32. Towing rope; 33. Towing wheel; 331. First roller; 332. Second roller; 4. Ejection cylinder. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present application clearer and more specific, the present application is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific examples described here are only used to explain the present application and are not used to limit the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "push-pull" and "open-and-close" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "push-pull" and "open-and-close" may explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, "multiple" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] The utility model provides a disassembly device for a press ejector cylinder. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0031] like Figures 1 to 3 As shown, a disassembly device for a press ejector cylinder is used to improve the disassembly efficiency of the press ejector cylinder 4 and ensure safety when disassembling the ejector cylinder 4. The disassembly device for the press ejector cylinder 4 comprises a bracket 1, a driving assembly 2, and a pulling assembly 3. The bracket 1 comprises a top plate 11 and legs 12. The legs 12 are fixed to the bottom surface of the top plate 11. In this embodiment, four legs 12 are provided. The top plate 11 is supported by the four legs 12, so that the disassembly device for the press ejector cylinder 4 can be placed directly above the press ejector cylinder 4, so as to facilitate the installation and disassembly of the ejector cylinder 4. The driving assembly 2 is installed on the side of the top plate 11, and the pulling assembly 3 is installed on the top plate 11. The pulling assembly 3 connects the driving assembly 2 and the press, so that the driving assembly 2 lifts the ejector cylinder 4 or the clamping cylinder. The driving assembly 2 drives the pulling assembly 3 to pull the ejector cylinder 4 in the press, so that the ejector cylinder 4 is separated from the press, so as to facilitate the subsequent maintenance of the ejector cylinder 4. The driving assembly 2 includes a motor 21, and the motor 21 drives the pulling assembly 3 to move the ejector cylinder 4 in the up-down direction, so that the ejector cylinder 4 can rise, fall or stop relative to the press. When the ejector cylinder 4 needs to be taken out of the press, the motor drives the pulling assembly 3 to operate, so that the ejector cylinder 4 rises relative to the press until the ejector cylinder 4 is separated from the press; when the ejector cylinder 4 needs to be put back into the press after the maintenance of the ejector cylinder 4 is completed, the motor drives the pulling assembly 3 to operate, so that the ejector cylinder 4 falls relative to the press to complete the placement of the ejector cylinder 4.

[0032] Furthermore, in order to enable the pulling assembly 3 to pull the ejection cylinder 4, the pulling assembly 3 includes a lifting ring 31 and a pulling rope 32. The lifting ring 31 is detachably mounted on the ejection cylinder 4. One end of the pulling rope 32 is connected to the driving assembly 2, and the other end is connected to the lifting ring 31. Specifically, the lifting ring 31 is rotationally connected to the ejection cylinder 4 through a screw thread. After the lifting ring 31 is connected to the ejection cylinder 4, the pulling rope 32 starts to pull the ejection cylinder 4 by pulling the lifting ring 31. In the present embodiment, the pulling rope 32 is a steel wire with high strength, thereby avoiding the pulling rope 32 from breaking when the ejection cylinder 4 is pulled by the pulling rope 32.

[0033] In order to enable the pulling assembly 3 to better pull the traction rope 32 and control the speed of the traction rope 32, the ejection cylinder 4 is prevented from shaking during the lifting process due to the sudden speed change of the traction rope 32, and the ejection cylinder 4 hits the press when shaking, causing the ejection cylinder 4 to be damaged. The pulling assembly 3 also includes a plurality of traction wheels 33, which are mounted on the top plate 11, and the traction rope 32 is rollingly mounted on the traction wheels 33, so when the driving assembly 2 drives the traction rope 32 to move, the traction rope 32 drives the traction wheel 33 to rotate, and at this time, the moving speed of the traction rope 32 can be controlled by the rolling of the traction wheel 33, so as to avoid the traction rope 32 changing too fast. In the present embodiment, two sets of traction wheels 33 are installed on the top plate 11, and the traction wheels 33 include a first roller 331 and a second roller 332. The first roller 331 and the second roller 332 are installed on the top plate 11 at intervals along the length direction of the top plate 11. The direction and movement trajectory of the traction rope 32 are controlled by the first roller 331 and the second roller 332. The two sets of traction wheels 33 can save more effort, so that the traction component can pull the traction rope 32 more easily, and can also better control the movement trajectory of the traction rope 32. In addition, because the first roller 331 is close to the driving component 2, the first roller 331 can also reduce the friction between the traction rope 32 and the bracket 1, thereby reducing the wear of the traction rope 32 and the bracket 1, thereby extending the service life of the disassembly device.

[0034] Furthermore, the traction wheel 33 is installed in the top plate 11 through the installation box, as shown in FIG. Figures 1 to 3 As shown, the installation box is in the shape of a rectangular parallelepiped, the bottom of the installation box is fixed on the top plate 11, and the top of the installation box is provided with a groove for the traction wheel 33 to be rotatably installed. The traction wheel 33 rotates in the groove to control the traction rope 32. At the same time, in order to allow the traction wheel 33 to rotate smoothly in the installation box, lubricating oil is also installed in the groove of the installation box to lubricate the traction wheel 33, so that the rotation of the traction wheel 33 is smoother.

[0035] At the same time, in order to shorten the distance of the traction rope 32 and improve the traction efficiency of the traction assembly 3 for the traction rope 32, a traction hole 111 is provided on the top plate 11. In the present embodiment, the traction hole 111 is arranged in the middle of the top plate 11. Specifically, after the traction rope 32 is led out from the traction assembly 3, it is attached to the traction wheel 33, driving the traction wheel 33 to rotate. At the same time, the traction wheel 33 controls the moving speed of the traction rope 32. Then the traction rope 32 passes through the traction hole 111 on the top plate 11, and is connected to the lifting ring 31 after passing through the traction hole 111.

[0036] Because during the use of the press, the ejector cylinder 4 in the press needs to be maintained at intervals, and multiple presses are running at the same time during the actual production process, so it is necessary to maintain the ejector cylinders 4 of different presses, that is, it is necessary to move the disassembly device of the ejector cylinder 4 of the press so that the device can disassemble the ejector cylinders 4 in different presses. Therefore, in this embodiment, in order to enable the ejector cylinder 4 device of the press to be movable, a pulley 121 is provided at the bottom of each leg 12, and the bracket 1 is moved through the pulley. In this embodiment, since the disassembly device of the ejector cylinder 4 of the press has four legs, four sets of pulleys 121 are provided in this embodiment. Therefore, when the disassembly device of the ejector cylinder 4 of the press needs to be moved, the pulley 121 is slid to move the disassembly device of the ejector cylinder 4 of the press to the top of the ejector cylinder 4 of the press, and then the lifting ring 31 is connected to the ejector cylinder 4, so as to start lifting the ejector cylinder 4 in the press, so that the ejector cylinder 4 is separated from the press.

[0037] When the disassembly device of the ejector cylinder 4 of the press is placed above the ejector cylinder 4 of the press, the device needs to be fixed to prevent the device from moving and affecting the disassembly of the ejector cylinder 4. The disassembly device of the ejector cylinder 4 of the press is moved by the pulley 121, so it is only necessary to limit the sliding of the pulley 121 to fix the disassembly device of the ejector cylinder 4 of the press. Therefore, in this embodiment, in order to limit the sliding of the pulley 121, the support leg 12 also includes a fixing member 122, and the sliding of the pulley 121 is limited by the fixing member 122 to fix the position of the bracket 1, so as to prevent the disassembly device of the ejector cylinder 4 of the press from being offset when the ejector cylinder 4 of the press is disassembled, so that the ejector cylinder 4 hits the inner wall of the press, causing the press and the ejector cylinder 4 to be damaged.

[0038] In order to enable the driving assembly 2 to pull the traction rope 32, and to drive the lifting ring 31 and the ejection cylinder 4 to rise or fall through the traction rope 32, so as to disassemble or install the ejection cylinder 4 in the press, the driving assembly 2 includes a motor 21, and the motor 21 is connected to the traction rope 32. The traction rope 32 is driven by the motor 21 to move, so that the traction rope 32 drives the lifting ring 31 and the ejection cylinder 4 to rise, and the ejection cylinder 4 is disassembled, or the traction rope 32 drives the lifting ring 31 and the ejection cylinder 4 to fall, and the ejection cylinder 4 is placed. In this embodiment, the motor 21 adopts a 0.37KW three-phase asynchronous motor, which can provide a stable power source, thereby maintaining the stable movement of the traction rope 32, and avoiding the ejection cylinder 4 being damaged due to the instability of the traction rope 32 during the rising or falling process due to the sudden change of the speed of the traction rope 32. At the same time, in order to control the moving speed of the traction rope 32, thereby controlling the rising or falling speed of the ejection cylinder 4, and further adjusting the lifting and lowering speed of the traction rope 32, the driving assembly 2 also includes a reducer 22. In this embodiment, the reducer, the motor 21 is transmission-connected to the reducer 22, and the output power of the motor 21 is controlled by the reducer 22, so that the output torque of the motor 21 controls the moving speed of the traction rope 32 while maintaining sufficient power, thereby preventing the ejection cylinder 4 from being damaged due to a sudden change in the speed of the traction rope 32.

[0039] When the disassembly device of the press ejection cylinder 4 is in operation, in order to prevent accidents and ensure safety, the disassembly device of the press ejection cylinder 4 is provided with a safety structure. In this embodiment, an emergency stop switch is also provided. The emergency stop switch is used to stop the operation of the disassembly device of the press ejection cylinder 4. When an accident occurs and the operation of the disassembly device of the press ejection cylinder 4 needs to be stopped urgently, the operation of the device can be stopped by pressing the emergency stop switch, so as to timely find out the cause of the problem. At the same time, the disassembly device of the press ejection cylinder 4 is also provided with overload protection and automatic power-off functions. The overload protection function is used to prevent the motor 21 from being damaged due to excessive current, and the automatic power-off function is used to automatically lock the drive assembly 2 and the pulling assembly 3 when the power is suddenly cut off, so as to prevent the ejection cylinder 4 suspended on the press from falling and damaging the ejection cylinder 4 and the press.

[0040] To summarize, when it is necessary to use the disassembly device of the ejector cylinder 4 of the press in the present application to disassemble the ejector cylinder 4 in the press, first, the disassembly device of the ejector cylinder of the press is moved to the top of the ejector cylinder 4 of the press through the pulley 121, and the motor 21 controls the traction rope 32 to move in the direction close to the ejector cylinder 4, so that the lifting ring 31 gradually approaches the ejector cylinder 4 and is connected to the ejector cylinder 4, and then the motor 21 is adjusted so that the motor 21 controls the traction rope 32 to move in the direction away from the ejector cylinder 4, and the ejector cylinder 4 rises with the lifting ring 31 until the ejector cylinder 4 is separated from the press. At this time, the operation of the motor 21 is stopped, and the disassembly device of the ejector cylinder 4 of the press with the ejector cylinder 4 is moved to a suitable position through the pulley 121, and the ejector cylinder 4 is placed, and finally the connection between the lifting ring 31 and the ejector cylinder 4 is untied to complete the disassembly of the ejector cylinder 4. When the ejection cylinder 4 needs to be placed back in the press, the lifting ring 31 is first connected to the ejection cylinder 4 so that the lifting ring 31 lifts the ejection cylinder 4, and then the disassembly device of the ejection cylinder 4 of the press is moved to the top of the press by sliding, and the motor 21 is adjusted so that the motor 21 controls the traction rope 32 to move toward the press, and the ejection cylinder 4 gradually descends following the lifting ring 31. When the ejection cylinder 4 descends to the bottom of the press, the connection between the lifting ring 31 and the ejection cylinder 4 is disconnected, and the disassembly device of the ejection cylinder 4 of the press is moved out of the press by the pulley 121, thereby completing the placement of the ejection cylinder 4.

[0041] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, improvements or changes can be made according to the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A disassembly device for a press ejector cylinder, characterized in that: include: A bracket, the bracket comprising a top plate and legs, the legs being fixed to the bottom surface of the top plate; A drive assembly, the drive assembly being mounted on a side of the top plate; A pulling assembly, the pulling assembly is mounted on the top plate, and the pulling assembly connects the driving assembly and the ejection cylinder so that the driving assembly lifts the ejection cylinder or the clamping cylinder; The driving assembly includes a motor, and the pulling assembly is driven by the motor to move the ejection cylinder in an up-and-down direction.

2. The disassembly device for the ejector cylinder of a press according to claim 1, characterized in that: The pulling assembly comprises a lifting ring and a pulling rope, wherein the lifting ring is detachably mounted on the ejection cylinder, one end of the pulling rope is connected to the driving assembly, and the other end of the pulling rope is connected to the lifting ring.

3. The disassembly device for the ejector cylinder of a press according to claim 2, characterized in that: The pulling assembly also includes a plurality of traction wheels, wherein the traction wheels are mounted on the top plate, and the traction ropes are rollingly mounted on the traction wheels.

4. The disassembly device for the ejector cylinder of a press according to claim 3, characterized in that: The traction wheel includes a first roller and a second roller, and the first roller and the second roller are installed on the top plate at intervals along the length direction of the top plate.

5. The disassembly device for the ejector cylinder of a press according to claim 1, characterized in that: The top plate is provided with a traction hole.

6. The disassembly device for the ejector cylinder of a press according to claim 1, characterized in that: A pulley is provided at the bottom of the supporting leg to enable the support to move.

7. The disassembly device for the ejector cylinder of a press according to claim 6, characterized in that: The supporting leg also includes a fixing member to fix the position of the bracket.

8. The disassembly device for the ejector cylinder of a press according to claim 2, characterized in that: The motor is transmission connected to the traction rope.

9. The disassembly device for the ejector cylinder of a press according to claim 8, characterized in that: The driving assembly also includes a reducer, and the motor is drivingly connected to the reducer to control the moving speed of the traction rope.

10. The disassembly device for the ejector cylinder of a press according to any one of claims 1 to 9, characterized in that: The disassembly device of the press ejection cylinder is also provided with an emergency stop switch to stop the operation of the disassembly device of the press ejection cylinder.

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