Special equipment for bonding bag opening of dust removal filter bag
By designing an automated dust filter bag mouth bonding equipment, the limit rod and bidirectional screw are driven by cylinders and motors, the automatic opening and pressing bonding of bag mouths of different sizes is achieved, and the poor applicability and manual operation of existing equipment are solved. The cumbersome issues improve efficiency and equipment applicability.
Patent Information
- Application Number
- CN202411437249.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing dust filter bag opening bonding equipment has poor applicability and cannot effectively deal with bag openings of different sizes. It is cumbersome to operate manually and has low efficiency.
A device including a working plate, a placing table, a cylinder, a limit rod, a two-way screw, a nozzle and a pressing assembly is designed to drive the movement of the limit rod and a two-way screw through the cylinder and the motor, and automatically open and press the bag port. And spray adhesive through the spray head to achieve effective bonding of bag openings of different sizes.
It improves the applicability of the equipment, can automatically process the dust filter bag ports of different sizes, reduces manual labor, improves work efficiency, and prevents adhesive curing and blocking the nozzle through a hot air fan, avoiding contamination.
Smart Images

Figure CN119239050A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of dust removal filter bag processing, in particular to a special device for bonding the bag opening of a dust removal filter bag. Background Art
[0002] The dust filter bag is a highly efficient dust filter material. It is made of polyester staple fiber or long fiber. Its service life is generally 4-6 times that of glass fiber fabric. It has good air permeability, high dust collection rate, easy to clean, and dust removal efficiency can reach 98.99%. When processing the dust filter bag, it is generally necessary to bond the bag mouth of the dust filter bag.
[0003] At present, when gluing the bag opening of a dust filter bag, the bag opening of the dust filter bag is generally opened, adhesive is sprayed on the bag opening, and then pressed to bond. However, existing equipment can generally only limit the opening of the bag opening of a dust filter bag of a specific size, which has certain limitations and poor applicability. Summary of the invention
[0004] In view of the deficiencies of the prior art, the present invention provides a special device for bonding the bag opening of a dust removal filter bag, thereby overcoming the deficiencies of the prior art.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a special device for bonding the bag opening of a dust removal filter bag, comprising a working plate and a placing table, the placing table is fixedly connected to the upper end of the working plate, the upper end of the working plate is connected to a fixing plate, a first cylinder is installed on the side wall of one side of the fixing plate, the piston end of the first cylinder penetrates through the side wall of the fixing plate and extends outward and is connected to a movable plate, two limit rods are symmetrically and slidably connected to the movable plate, a bidirectional screw rod is rotatably connected to the side wall of the movable plate, the bidirectional screw rod is threadedly connected to the limit rod, and a A rotating assembly for driving the bidirectional screw rod to rotate, a telescopic assembly is installed between the two limit rods, a nozzle is installed between the two limit rods through the telescopic assembly, a storage tank is installed on the side wall of one side of the fixed plate, the storage tank and the nozzle are connected through a connecting hose, two vertical plates are symmetrically connected to the upper end of the working plate about the placing table, a top plate is commonly connected between the two vertical plates, a second cylinder is installed on the top plate, a fixed box is connected to the piston end of the second cylinder, and the opening of the fixed box is arranged downward, and a pressing assembly is installed in the fixed box.
[0006] By adopting the above technical solution, when in use, the dust filter bag is placed on the placement table for fixing, and then the first cylinder is started. The operation of the first cylinder will drive the movable plate to move in the horizontal direction, and the movement of the movable plate will drive the limit rod to move, and the movement of the limit rod will drive the nozzle to move. When the limit rod enters the interior of the filter bag, the bidirectional screw rod is rotated by rotating the assembly, and the rotation of the bidirectional screw rod will cause the two limit rods to move toward or away from each other in the horizontal direction, thereby opening the bag mouth of the filter bag. At this time, the connecting hose is used to The adhesive is discharged from the storage tank into the nozzle, and the nozzle sprays the adhesive to the bag opening of the filter bag, and then the limit rod is taken out of the filter bag by the first cylinder. At this time, the second cylinder is started, and the operation of the second cylinder will drive the fixing box to move vertically downward, so that the pressing component comes into contact with the bag opening of the filter bag, and then the bag opening is pressed and bonded by the pressing component. The above structure can open the bag openings of dust filter bags of different sizes, which is convenient for spraying adhesive into the dust filter bags to meet the needs under different conditions, thereby improving the applicability of the device.
[0007] As a preferred technical solution of the present invention, the rotating assembly includes a first motor fixedly mounted on a side wall of one side of the movable plate, and an output end of the first motor is connected to a bidirectional screw rod through a coupling.
[0008] By adopting the above technical solution, the first motor is started, and the operation of the first motor will drive the bidirectional screw rod to rotate.
[0009] As a preferred technical solution of the present invention, a sliding groove is provided on the side wall of the movable plate away from the fixed plate, and two sliders are symmetrically slidably connected in the sliding groove on the movable plate, and one end of the slider is connected to the corresponding limit rod.
[0010] By adopting the above technical solution, the slider limits the limit rod to prevent the limit rod from rotating.
[0011] As a preferred technical solution of the present invention, a sliding rod is fixedly connected to the inner groove wall of the sliding groove on the movable plate, the sliding rod passes through the sliding block, and the sliding block is slidably connected to the sliding rod.
[0012] By adopting the above technical solution, the sliding block is prevented from being separated from the sliding groove.
[0013] As a preferred technical solution of the present invention, the telescopic assembly includes a fixed tube fixedly connected to both ends of the nozzle, a fixed rod is slidably connected inside the fixed tube, and the other end of the fixed rod passes through the pipe mouth of the fixed tube and extends outward and is connected to the corresponding limit rod.
[0014] By adopting the above technical solution, when the two limit rods move, the limit rods will exert a force on the fixed rod, and the fixed rod will move in the fixed tube under the force, thereby effectively keeping the nozzle always in the position between the two limit rods.
[0015] As a preferred technical solution of the present invention, the pressing assembly includes a slide rail installed on the inner wall of one side of the fixed box, a second motor is slidably installed on the slide rail, the output end of the second motor is connected to a rotating shaft through a coupling, a pressing roller is fixedly sleeved on the shaft wall of the rotating shaft, a transmission assembly for the pressing roller to move horizontally is installed in the fixed box, and the pressing roller is arranged to pass through the opening of the fixed box.
[0016] By adopting the above technical solution, when it is necessary to press the bag opening of the dust filter bag, the pressing roller is squeezed at the bag opening of the dust filter bag, and then the second motor is started. The operation of the second motor will drive the rotating shaft to rotate, and the rotation of the rotating shaft will drive the pressing roller to rotate. The rotation of the pressing roller will drive the bag opening to be pressed and bonded. The above structure can automatically press and bond the bag opening of the dust filter bag, thereby reducing manual labor, saving time, and improving work efficiency.
[0017] As a preferred technical solution of the present invention, the transmission assembly includes a rack fixedly mounted on the inner wall of the fixed box, a gear is fixedly sleeved on the shaft wall of the rotating shaft, and the gear is meshed with the rack.
[0018] By adopting the above technical solution, the rotation of the rotating shaft will drive the gear to rotate, and the rotation of the gear will be affected by the force of the rack and exert force on the second motor. The second motor will move in the fixed box through the slide rail under the force, thereby driving the pressing roller to move, so as to fully press and bond the bag opening.
[0019] As a preferred technical solution of the present invention, an installation box is installed on the upper end of the working plate, and the installation box is located directly below the nozzle, a hot air blower is installed at the bottom end of the installation box, and a filter plate is installed on the inner wall of the installation box above the hot air blower.
[0020] By adopting the above technical solution and starting the hot air blower, the hot air blower will heat and soften the adhesive solidified on the nozzle to prevent the solidified adhesive from clogging the nozzle outlet. In addition, the filter plate can collect the adhesive detached after solidification, which can effectively prevent the adhesive from contaminating the work surface.
[0021] As a preferred technical solution of the present invention, a support plate is installed on the side wall of one side of the fixing plate, and the first cylinder is arranged on the support plate.
[0022] By adopting the above technical solution, the first cylinder is prevented from falling from the supporting plate.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] (1) The present invention is provided with a working plate, a placing table, a fixed plate, a first cylinder, a movable plate, a limit rod, a bidirectional screw rod, a fixed pipe, a fixed rod, a nozzle, a storage tank, a connecting hose and a first motor and other structures. The movable plate is driven by the first cylinder to move the two limit rods to allow the limit rods to enter the filter bag. The bidirectional screw rod is then driven by the first motor to rotate to adjust the distance between the two limit rods to open the bag opening of the filter bag. The adhesive is then sprayed onto the bag opening through the storage tank and the nozzle for bonding. The bag openings of dust filter bags of different sizes can be opened through the above structure, which is convenient for spraying adhesive into the dust filter bags to meet the needs under different conditions, thereby improving the applicability of the device.
[0025] (2) The present invention sets up a vertical plate, a top plate, a second cylinder, a fixed box, a slide rail, a second motor, a rotating shaft, a pressing roller, a rack and a gear and other structures. When the second cylinder is started, the operation of the second cylinder will drive the fixed box to move vertically downward, so that the pressing roller will contact the bag opening of the filter bag. Then, when the second motor is started, the operation of the second motor will drive the rotating shaft to rotate. The rotation of the rotating shaft will drive the pressing roller to rotate. The rotation of the rotating shaft will also drive the gear to rotate. The rotation of the gear will be affected by the force of the rack and exert a force on the second motor. The second motor will move in the fixed box through the slide rail under the force, thereby driving the pressing roller to move to fully press and bond the bag opening. The above structure can automatically press and bond the bag opening of the dust filter bag, reducing manual labor, saving time and improving work efficiency.
[0026] (3) The present invention provides a mounting box, a hot air blower, a filter plate and other structures. When the hot air blower is started, the hot air blower heats and softens the adhesive solidified on the nozzle, thereby preventing the solidified adhesive from clogging the nozzle outlet. In addition, the filter plate can collect the adhesive that is detached after solidification, thereby effectively preventing the adhesive from contaminating the work surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0028] Figure 2 It is a schematic diagram of the structure of the buffer component in the present invention;
[0029] Figure 3 It is a schematic diagram of the structure of the fixing box in the present invention;
[0030] Figure 4It is a schematic diagram of the internal structure of the fixing box in the present invention;
[0031] Figure 5 It is a schematic diagram of the transmission assembly structure in the present invention;
[0032] Figure 6 It is a schematic diagram of the internal structure of the movable plate in the present invention;
[0033] Figure 7 It is a schematic diagram of the internal structure of the installation box in the present invention.
[0034] Description of reference numerals:
[0035] 1. Working plate; 2. Placing table; 3. Fixed plate; 4. First cylinder; 5. Movable plate; 6. Limit rod; 7. Bidirectional screw rod; 8. Nozzle; 9. Storage tank; 10. Connecting hose; 11. Vertical plate; 12. Top plate; 13. Second cylinder; 14. Fixed box; 15. First motor; 16. Slider; 17. Sliding rod; 18. Fixed pipe; 19. Fixed rod; 20. Slide rail; 21. Second motor; 22. Rotating shaft; 23. Pressing roller; 24. Rack; 25. Gear; 26. Mounting box; 27. Hot air blower; 28. Filter plate; 29. Support plate. DETAILED DESCRIPTION
[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0037] See also Figure 1-3 and Figure 6 A dust filter bag opening bonding device, comprising a working plate 1 and a placing table 2, the placing table 2 is fixedly connected to the upper end of the working plate 1, the upper end of the working plate 1 is fixedly connected to a fixing plate 3, a first cylinder 4 is installed on the side wall of one side of the fixing plate 3, a supporting plate 29 is installed on the side wall of one side of the fixing plate 3, the first cylinder 4 is arranged on the supporting plate 29 to prevent the first cylinder 4 from falling from the supporting plate 29, the piston end of the first cylinder 4 penetrates the side wall of the fixing plate 3 and extends outward and is connected to a movable plate 5, and the movable plate 5 is symmetrically There are two limit rods 6 in sliding connection, and a sliding groove is opened on the side wall of the movable plate 5 away from the fixed plate 3. Two sliders 16 are symmetrically slidably connected in the sliding groove on the movable plate 5, one end of the slider 16 is connected to the corresponding limit rod 6, and the slider 16 limits the limit rod 6 to prevent the limit rod 6 from rotating. A sliding rod 17 is fixedly connected to the groove wall of the sliding groove on the movable plate 5, and the sliding rod 17 runs through the slider 16, and the slider 16 is slidably connected to the sliding rod 17 to prevent the slider 16 from detaching from the sliding groove.
[0038] A bidirectional screw rod 7 is rotatably connected to the side wall of the movable plate 5, and the bidirectional screw rod 7 is threadedly connected to the limit rod 6. A rotating assembly for driving the bidirectional screw rod 7 to rotate is installed on the movable plate 5, and the rotating assembly includes a first motor 15 fixedly installed on the side wall of one side of the movable plate 5. The output end of the first motor 15 is connected to the bidirectional screw rod 7 through a coupling. When the first motor 15 is started, the operation of the first motor 15 will drive the bidirectional screw rod 7 to rotate. A telescopic assembly is installed between the two limit rods 6. A nozzle 8 is installed between the two limit rods 6 through the telescopic assembly. The telescopic assembly includes a fixed tube 18 fixedly connected to both ends of the nozzle 8, and a fixed rod 19 is slidably connected in the fixed tube 18. The other end of the fixed rod 19 passes through the pipe mouth of the fixed tube 18 and extends outward and is connected to the corresponding limit rod 6. When the two limit rods 6 move, the limit rod 6 will apply a force to the fixed rod 19, and the fixed rod 19 will move in the fixed tube 18 under the force, so that the nozzle 8 can be effectively kept in the position between the two limit rods 6 at all times. When in use, the dust filter bag is placed on the placement table 2 for fixation, and then the first cylinder 4 is started. The operation of the first cylinder 4 will drive the movable plate 5 to move in the horizontal direction, and the movement of the movable plate 5 will drive the limit rod 6 to move, and the movement of the limit rod 6 will drive the nozzle 8 to move. When the limit rod 6 enters the interior of the filter bag, the bidirectional screw rod 7 is rotated by rotating the assembly, and the rotation of the bidirectional screw rod 7 will cause the two limit rods 6 to move toward or away from each other in the horizontal direction, thereby opening the bag mouth of the filter bag.
[0039] For details, please refer to Figure 1-2 A storage tank 9 is fixedly installed on the side wall of one side of the fixed plate 3. The storage tank 9 is connected to the nozzle 8 through a connecting hose 10. The adhesive is discharged from the storage tank 9 into the nozzle 8 through the connecting hose 10, and the nozzle 8 then sprays the adhesive to the bag opening of the filter bag.
[0040] For details, please refer to Figure 3-5The upper end of the working plate 1 is symmetrically fixedly connected with two vertical plates 11 about the placing table 2, and a top plate 12 is commonly connected between the two vertical plates 11. A second cylinder 13 is installed on the top plate 12, and a fixed box 14 is connected to the piston end of the second cylinder 13, and the opening of the fixed box 14 is set downward. A pressing component is installed in the fixed box 14, and the pressing component includes a slide rail 20 fixedly installed on the inner side wall of one side of the fixed box 14, and a second motor 21 is slidably installed on the slide rail 20. The output end of the second motor 21 is connected to a rotating shaft 22 through a coupling, and a pressing roller 23 is fixedly sleeved on the shaft wall of the rotating shaft 22. The fixed box 14 is in A transmission assembly for a pressing roller 23 to move in the horizontal direction is installed, and the pressing roller 23 is arranged through the opening of the fixed box 14. When it is necessary to press the bag opening of the dust filter bag, the pressing roller 23 is squeezed at the bag opening position of the dust filter bag, and then the second motor 21 is started. The operation of the second motor 21 will drive the rotating shaft 22 to rotate, and the rotation of the rotating shaft 22 will drive the pressing roller 23 to rotate. The rotation of the pressing roller 23 will drive the bag opening to be pressed and bonded. The bag opening of the dust filter bag can be automatically pressed and bonded through the upper structure, reducing manual labor, saving time, and improving work efficiency.
[0041] The transmission assembly includes a rack 24 fixedly mounted on the inner wall of the fixed box 14, a gear 25 fixedly sleeved on the shaft wall of the rotating shaft 22, and the gear 25 meshes with the rack 24. The rotation of the rotating shaft 22 will drive the gear 25 to rotate, and the rotation of the gear 25 will be affected by the force of the rack 24 and exert a force on the second motor 21. The second motor 21 will move in the fixed box 14 through the slide rail 20 under the force, thereby driving the pressing roller 23 to move to fully press and bond the bag opening.
[0042] For details, please refer to Figure 1-2 and Figure 7 A mounting box 26 is installed at the upper end of the working plate 1, and the mounting box 26 is located directly below the nozzle 8. A hot air blower 27 is installed at the bottom end of the mounting box 26. A filter plate 28 is installed on the inner wall of the mounting box 26 above the hot air blower 27. When the hot air blower 27 is started, the hot air blower 27 will heat and soften the cured adhesive on the nozzle 8 to prevent the cured adhesive from clogging the outlet of the nozzle 8. In addition, the filter plate 28 can collect the adhesive detached after curing, which can effectively prevent the adhesive from contaminating the work surface.
[0043] Working principle: When in use, place the dust filter bag on the placement table 2 for fixing, and then start the first cylinder 4. The operation of the first cylinder 4 will drive the movable plate 5 to move in the horizontal direction. The movement of the movable plate 5 will drive the limit rod 6 to move. The movement of the limit rod 6 will drive the nozzle 8 to move. When the limit rod 6 enters the interior of the filter bag, start the first motor 15. The operation of the first motor 15 will cause the bidirectional screw rod 7 to rotate. The rotation of the bidirectional screw rod 7 will cause the two limit rods 6 to move toward or away from each other in the horizontal direction, thereby opening the bag mouth of the filter bag. At this time, the adhesive is discharged from the storage tank 9 into the nozzle 8 through the connecting hose 10, and the nozzle 8 sprays the adhesive to the bag mouth position of the filter bag. Then, the limiting rod 6 is taken out from the filter bag by the first cylinder 4. At this time, the second cylinder 13 is started. The operation of the second cylinder 13 will drive the fixing box 14 to move vertically downward, so that the pressing roller 23 comes into contact with the bag opening of the filter bag. Then, the second motor 21 is started. The operation of the second motor 21 will drive the rotating shaft 22 to rotate. The rotation of the rotating shaft 22 will drive the pressing roller 23 to rotate. The rotation of the rotating shaft 22 will also drive the gear 25 to rotate. The rotation of the gear 25 will be affected by the force of the rack 24 and exert a force on the second motor 21. The second motor 21 will move in the fixing box 14 through the slide rail 20 under the force, thereby driving the pressing roller 23 to move to fully press and bond the bag opening.
[0044] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.
[0045] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A special device for gluing the bag opening of a dust filter bag, comprising a working plate (1) and a placing table (2), characterized in that: The placing table (2) is fixedly connected to the upper end of the working plate (1), and the upper end of the working plate (1) is connected to a fixed plate (3). A first cylinder (4) is installed on the side wall of one side of the fixed plate (3). The piston end of the first cylinder (4) penetrates the side wall of the fixed plate (3) and extends outward and is connected to a movable plate (5). Two limit rods (6) are symmetrically slidably connected to the movable plate (5). A bidirectional screw rod (7) is rotatably connected to the side wall of the movable plate (5). The bidirectional screw rod (7) is threadedly connected to the limit rod (6). A rotating assembly for driving the bidirectional screw rod (7) to rotate is installed on the movable plate (5). The two limit rods (6) are connected together. A telescopic component is installed, and a nozzle (8) is installed between the two limit rods (6) through the telescopic component. A storage tank (9) is installed on the side wall of one side of the fixed plate (3), and the storage tank (9) and the nozzle (8) are connected through a connecting hose (10). The upper end of the working plate (1) is symmetrically connected to two vertical plates (11) about the placement table (2), and a top plate (12) is commonly connected between the two vertical plates (11). A second cylinder (13) is installed on the top plate (12), and a fixed box (14) is connected to the piston end of the second cylinder (13), and the opening of the fixed box (14) is arranged downward, and a pressing component is installed in the fixed box (14).
2. The dust filter bag opening bonding device according to claim 1 is characterized in that: The rotating assembly comprises a first motor (15) fixedly mounted on a side wall of a movable plate (5), and an output end of the first motor (15) is connected to a bidirectional screw rod (7) via a coupling.
3. The dust filter bag opening bonding device according to claim 2 is characterized in that: A sliding groove is provided on the side wall of the movable plate (5) away from the fixed plate (3), and two sliding blocks (16) are symmetrically slidably connected in the sliding groove on the movable plate (5), and one end of the sliding block (16) is connected to the corresponding limiting rod (6).
4. The dust filter bag opening bonding device according to claim 3 is characterized in that: A sliding rod (17) is fixedly connected to the inner groove wall of the sliding groove on the movable plate (5); the sliding rod (17) passes through the sliding block (16), and the sliding block (16) is slidably connected to the sliding rod (17).
5. The dust filter bag opening bonding device according to claim 1 is characterized in that: The telescopic assembly comprises a fixed tube (18) fixedly connected to both ends of the nozzle (8), a fixed rod (19) being slidably connected inside the fixed tube (18), and the other end of the fixed rod (19) passes through the pipe opening of the fixed tube (18) and extends outwards and is connected to the corresponding limit rod (6).
6. The dust filter bag opening bonding device according to claim 1 is characterized in that: The pressing assembly comprises a slide rail (20) mounted on an inner side wall of one side of a fixed box (14); a second motor (21) is slidably mounted on the slide rail (20); an output end of the second motor (21) is connected to a rotating shaft (22) via a coupling; a pressing roller (23) is fixedly sleeved on the shaft wall of the rotating shaft (22); a transmission assembly for the pressing roller (23) to move in a horizontal direction is mounted in the fixed box (14); and the pressing roller (23) is arranged to pass through an opening of the fixed box (14).
7. The dust filter bag opening bonding device according to claim 6 is characterized by: The transmission assembly comprises a rack (24) fixedly mounted on the inner wall of the fixed box (14); a gear (25) is fixedly sleeved on the shaft wall of the rotating shaft (22), and the gear (25) is meshed with the rack (24).
8. The dust filter bag opening bonding device according to claim 1 is characterized by: A mounting box (26) is installed at the upper end of the working plate (1), and the mounting box (26) is located directly below the nozzle (8). A hot air blower (27) is installed at the bottom end of the mounting box (26), and a filter plate (28) is installed on the inner side wall of the mounting box (26) located above the hot air blower (27).
9. The dust filter bag opening bonding device according to claim 1, characterized in that: A support plate (29) is installed on a side wall of one side of the fixing plate (3), and the first cylinder (4) is arranged on the support plate (29).
Citation Information
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