Automatic locking and opening device of working roll changing trolley

Abstract

The utility model discloses an automatic locking and opening device for a working roll changing trolley, which comprises a working roll device and a trolley, an electric push rod is arranged on the side surface of the trolley, an L-shaped hook is mounted on the lower surface of the movable end of the electric push rod, and a straining beam is fixedly arranged on the upper surface of one end, far away from the trolley, of the hook; an installation column is arranged at the end of the working roller device, and a clamping groove matched with the straining beam is formed between the installation column and the working roller device. The electric push rod and the hook are connected with the straining beam, lifting of the straining beam and clamping or separating of the mounting column are operated through electric control when the working roller is replaced, an original manual operation handle is replaced, the workload of workers is reduced, the roller replacing efficiency is improved, meanwhile, field operation of the workers is not needed, and the operation safety is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal strip processing, in particular to an automatic locking and opening device for a working roll changing vehicle. Background Art

[0002] In the process of metal strip processing, the work roll changing car is an important auxiliary equipment, which is used to quickly and accurately change the work rolls during the strip processing. Most of the existing roll changing cars adopt the manual locking and opening method, such as Figure 3 As shown, in both the pull roll state and the push roll state, the operator needs to manually lift the handle 12 and then the trolley drives the trolley pull beam 16 to operate the working roll, which not only increases the workload of the operator, but also reduces the roll changing efficiency and poses a safety hazard. To this end, we propose an automatic locking and opening device for the working roll changing trolley. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide an automatic locking and opening device for a working roll changing vehicle, which reduces the workload of staff and improves the roll changing efficiency. At the same time, it does not require on-site operation by staff, greatly improves operational safety, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic locking and opening device for a working roll changing car, comprising a working roll device and a trolley, the side surface of the trolley is provided with an electric push rod, the lower surface of the movable end of the electric push rod is installed with an L-shaped hook, and the upper surface of the end of the hook away from the trolley is fixedly provided with a pulling beam; an installation column is provided at the end of the working roll device, and a slot matching the pulling beam is formed between the installation column and the working roll device.

[0005] As a preferred technical solution of the utility model, the side surfaces of the tension beam and the mounting column corresponding to each other are both right-angled surfaces.

[0006] As a preferred technical solution of the present utility model, protective pads are provided on the two side surfaces corresponding to the tension beam and the mounting column.

[0007] As a preferred technical solution of the utility model, a groove is provided on the surface of the pull beam on one side away from the electric push rod, a through groove corresponding to the groove is provided on the protective pad arranged on this side, and a proximity switch is installed in the groove.

[0008] As an optimal technical solution of the utility model, an installation groove is provided on the upper surface of the end of the working roll device, and the installation column is installed in the installation groove. A screw hole corresponding to the installation groove is provided on the side surface of the end of the working roll device, and a fixing bolt for fixing the installation column is threadedly connected in the screw hole.

[0009] Compared with the prior art, the beneficial effects of the utility model are: the electric push rod and the hook are connected to the pull beam, and the lifting and lowering of the pull beam and the clamping or separation of the installation column are operated by electric control when the working rolls are changed, replacing the original manual operating handle, reducing the workload of the staff, and improving the roll changing efficiency. At the same time, there is no need for staff to operate on site, which greatly improves the operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of the utility model;

[0011] Figure 2 This is a schematic diagram of the structure of the hook and the pull beam of the utility model;

[0012] Figure 3 It is a structural schematic diagram of a manual locking and opening device in the prior art.

[0013] In the figure: 1 working roller device, 2 mounting column, 3 fixing bolt, 4 slot, 5 trolley, 6 hook, 7 pulling beam, 8 protective pad, 9 groove, 10 proximity switch, 11 electric push rod, 12 handle, 13 pressure cover, 14 spring, 15 shaft, 16 trolley pulling beam. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] See also Figure 1-2The utility model provides a technical solution: an automatic locking and opening device for a working roll changing car, comprising a working roll device 1 and a trolley 5, wherein the side surface of the trolley 5 is provided with an electric push rod 11, and the lower surface of the movable end of the electric push rod 11 is provided with an L-shaped hook 6, and the upper surface of the end of the hook 6 away from the trolley 5 is fixedly provided with a pulling beam 7; a mounting column 2 is provided at the end of the working roll device 1, and a card slot 4 matching the pulling beam 7 is formed between the mounting column 2 and the working roll device 1. When pulling the roll: the trolley 5 drives the pulling beam 7 to move to the lower side of the card slot 4, and then retracts the electric push rod 11, so that the hook 6 drives the pulling beam 7 to be lifted and locked into the card slot. In the slot 4, the trolley 5 is driven to hang the pulling beam 7 on the mounting column 2, and then the trolley drags the mounting column 2 to move the working roller device 1. After it is in place, the electric push rod 11 is extended to disengage the pulling beam 7 from the mounting column 2 and move it out of the slot 4, and then the trolley 5 walks away to complete the roller pulling action; when pushing the roller: the trolley 5 drives to move the pulling beam 7 to the lower side of the slot 4, and then the electric push rod 11 is retracted, so that the hook 6 drives the pulling beam 7 to lift and insert it into the slot 4, and the trolley 5 is driven to push the working roller device 1 to move. After it is in place, the electric push rod 11 is extended to disengage the pulling beam 7 from the mounting column 2 and move it out of the slot 4, and then the trolley 5 walks away to complete the roller pushing action.

[0016] The electric push rod 11 and the hook 6 are connected to the pulling beam 7. When the working rolls are changed, the lifting and lowering of the pulling beam 7 and the engagement or separation with the mounting column 2 are operated by electric control, replacing the original manual operating handle 12, thereby reducing the workload of the staff and improving the efficiency of roll changing. At the same time, there is no need for on-site operation by the staff, which greatly improves the operational safety.

[0017] The preferred technical solution is that in the original manual locking and opening method, the outer sides of the shaft 15 and the trolley pull beam 16 are both chamfered, and a spring 14 corresponding to the shaft 15 is arranged inside the working roll device. When the trolley pull beam 16 is stuck to the inner side of the shaft 15, it is necessary to push the trolley pull beam 16 so that the chamfered edge and the chamfered edge of the shaft 15 push each other, so that the shaft 15 moves upward to compress the spring 14, and then is stuck into the cavity between the shaft 15 and the working roll device. Not only does it make the working roll device more complicated, but the long-term friction between the shaft 15 and the trolley pull beam 16 will cause wear and affect the overall service life. After the electric push rod 11 of the present application is used for connection, the side surfaces corresponding to the pull beam 7 and the mounting column 2 can be set to right-angle surfaces, and the pull beam 7 enters the card slot 4 only by controlling the extension and retraction of the electric push rod 11, which simplifies the structure of the working roll device 1, reduces wear, and extends the overall service life of the equipment.

[0018] A further preferred technical solution is that the two side surfaces corresponding to the pulling beam 7 and the mounting column 2 are provided with protective pads 8. The protective pads 8 are provided on both sides of the pulling beam 7. No matter when pulling the roller or pushing the roller, the protective pads 8 can play a protective role against the force-bearing surface, thereby further reducing the wear between the pulling beam 7 and the mounting column 2.

[0019] An optional technical solution is that a groove 9 is provided on the surface of one side of the pulling beam 7 away from the electric push rod 11, and a through groove corresponding to the groove 9 is provided on the protective pad 8 arranged on this side, and a proximity switch 10 is installed in the groove 9, and the proximity switch 10 is electrically connected to the electric push rod 11. The proximity switch 10 is used to detect the inner surface of the mounting column 2 and the slot 4. When it is necessary to pull or push the working roll, the trolley 5 drives the pulling beam 7 to move to the mounting column 2, triggers the proximity switch 10, and turns on the electric push rod 11, so that the electric push rod 11 drives the hook 6 and the pulling beam 7 to move downward by a preset stroke. After that, the trolley continues to move, and the proximity switch 10 detects the inner surface of the slot 4, and then controls the electric push rod 11 to move upward by a preset stroke, so that the pulling beam 7 is automatically stuck in the slot 4, which greatly improves the degree of automation of the device. It can be unmanned throughout the process of use, further improving work efficiency. It is particularly suitable for the automation control system when the trolley 5 adopts an AGV trolley.

[0020] The electric push rod 11, proximity switch 10, etc. used in the present application are all commonly used electronic components in the prior art, and their specific structures, working principles, circuit connections, etc. are all well-known technologies and will not be described in detail here.

[0021] According to the preferred technical solution, a mounting groove is provided on the upper surface of the end of the working roll device 1, and a mounting column 2 is installed in the mounting groove. The mounting column 2 can be moved up and down in the mounting groove to adjust the height of its bottom end, thereby adjusting the depth of the slot 4 to be suitable for working roll devices 1 of different weights; a screw hole corresponding to the mounting groove is provided on the side surface of the end of the working roll device 1, and a fixing bolt 3 for fixing the mounting column 2 is threadedly connected in the screw hole, and the position of the mounting column 2 is fixed by the fixing bolt 3, which is simple to operate and convenient to fix.

[0022] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. An automatic locking and opening device for a working roll changing vehicle, comprising a working roll device (1) and a trolley (5), characterized in that: An electric push rod (11) is provided on the side surface of the trolley (5), an L-shaped hook (6) is installed on the lower surface of the movable end of the electric push rod (11), and a pulling beam (7) is fixedly provided on the upper surface of the end of the hook (6) away from the trolley (5); a mounting column (2) is provided at the end of the working roller device (1), and a slot (4) matching the pulling beam (7) is formed between the mounting column (2) and the working roller device (1).

2. The automatic locking and opening device for a working roll changing vehicle according to claim 1, characterized in that: The side surfaces of the tension beam (7) and the mounting column (2) that correspond to each other are both right-angled surfaces.

3. The automatic locking and opening device for a working roll changing vehicle according to claim 2, characterized in that: Both side surfaces of the tension beam (7) corresponding to the mounting column (2) are provided with protective pads (8).

4. The automatic locking and opening device for a working roll changing vehicle according to claim 3, characterized in that: A groove (9) is provided on a surface of the pull beam (7) on one side away from the electric push rod (11), a through groove corresponding to the groove (9) is provided on the protective pad (8) arranged on the side, and a proximity switch (10) is installed in the groove (9).

5. An automatic locking and opening device for a work roll changing vehicle according to any one of claims 1 to 4, characterized in that: The upper surface of the end of the working roll device (1) is provided with a mounting groove, the mounting column (2) is installed in the mounting groove, the side surface of the end of the working roll device (1) is provided with a screw hole corresponding to the mounting groove, and the screw hole is threadedly connected with a fixing bolt (3) for fixing the mounting column (2).

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