A lightweight wall panel core shaft core pulling device and core pulling method thereof

Abstract

The present invention discloses a core pulling device for a lightweight wall panel core shaft and a core pulling method thereof, which relate to the technical field of lightweight wall panel production equipment, including a core bearing support bracket and a core shaft extraction bracket arranged on a main frame. In the extraction direction of the core shaft, one end of the core bearing support bracket is fixed on the main frame, and the other end is close to the core shaft extraction bracket, and can move synchronously with the core shaft extraction bracket along the extraction direction of the core shaft; the core bearing support bracket is used to support the extracted core shaft, and the core shaft extraction bracket includes a connecting part that can connect to the core shaft end or disconnect from the core shaft end; the present invention makes the connection method with the core shaft simpler by arranging a connecting part that can automatically connect to the core shaft end or disconnect from the core shaft end, and arranging the core bearing support bracket is convenient for discharging several extracted core shafts at the same time, and the core pulling efficiency is higher.

Description

Technical Field

[0001] The invention relates to the technical field of lightweight wallboard production equipment, in particular to a lightweight wallboard mandrel core pulling device and a core pulling method thereof. Background Art

[0002] Lightweight wall panels are a new energy-saving wall material. They resemble hollow-core floor slabs, but feature male and female grooves on either side. Installation requires simply standing the panels upright, applying a small amount of caulking mortar to the male and female grooves, and then assembling them. They are made from harmless phosphogypsum, lightweight steel slag, fly ash, and other industrial waste residues, and are cured using variable-frequency steam pressurization. Lightweight partition panels offer advantages such as light weight, high strength, multiple environmental benefits, thermal insulation, sound insulation, breathable humidity control, fire resistance, rapid construction, and reduced wall construction costs. They are currently widely used in construction.

[0003] When processing lightweight wall panels, a core shaft is inserted into the mold, and then the stirred raw materials are poured into the mold. After the initial solidification and forming, the core shaft needs to be pulled out. In the utility model patent with application number "201420668918.9" and titled "Wall Panel Machine Core Pulling Device", its technical solution is to connect the driven gear shaft in the gearbox with the core shaft in the wall panel, and use the crane to drive the gearbox to move, thereby causing the core shaft to rotate and move outward at the same time; in the invention patent with application number "201711048202.3" and titled "Lightweight Wall Panel Core Pulling Process", its technical solution is to extend the support tube into the core shaft, and use a hydraulic device to drive the support block to extend, fix the core shaft, and then cast the lightweight wall panel. After casting is completed, the core shaft is pulled out using a pull-out trolley. However, the above two technical solutions are relatively cumbersome for fixing and disassembling the core shaft.

[0004] Therefore, the present invention has developed a new type of lightweight wall panel core shaft core pulling device to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a core pulling device for a lightweight wall panel core shaft and a core pulling method thereof to solve the problems existing in the prior art. By providing a connecting part that can automatically connect to the end of the core shaft or disconnect from the end of the core shaft, the connection method with the core shaft is simpler, and a core shaft support bracket is provided to facilitate the simultaneous discharge of several pulled core shafts, thereby improving the core pulling efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a lightweight wall panel core shaft core pulling device, including a core shaft support bracket and a core shaft extraction bracket arranged on a main frame. In the extraction direction of the core shaft, one end of the core shaft support bracket is fixed on the main frame, and the other end is close to the core shaft extraction bracket, and can move synchronously with the core shaft extraction bracket along the extraction direction of the core shaft; the core shaft support bracket is used to support the extraction of the core shaft, and the core shaft extraction bracket includes a connecting part that can connect to the end of the core shaft or disconnect the connection with the end of the core shaft.

[0007] Preferably, the connecting portion includes a plurality of hook shafts that are vertically arranged in parallel and can rotate synchronously, and a hook is fixed on the hook shaft, and the hook is used to hook the fixing ring at the end of the core shaft.

[0008] Preferably, the connecting portion further comprises a linkage rod and a plurality of linkage arms hinged in parallel to the linkage rod, the linkage arms are used to fix the end of the hook shaft, and the linkage rod further has a force-applying end for driving its translation.

[0009] Preferably, a sliding portion is also slidably provided on the main frame for driving the core shaft extraction bracket and one end of the core shaft bearing support bracket to move along the core shaft extraction direction; the core shaft extraction bracket also includes an upper connecting plate and a lower connecting plate arranged in parallel and fixed on the sliding portion, and a plurality of sleeves for sleeves on the hook shaft are arranged at intervals on the upper connecting plate, and a limiting portion for axially limiting the hook shaft is arranged at intervals on the lower connecting plate.

[0010] Preferably, the core shaft support bracket includes a front discharge shaft bracket and a rear discharge shaft bracket; in the withdrawal direction of the core shaft, the front discharge shaft bracket is fixed on the main frame, and the rear discharge shaft bracket is fixed on the sliding part; the front discharge shaft bracket includes a plurality of front row plates that are spaced from top to bottom and arranged horizontally; the rear discharge shaft bracket includes a plurality of rear row plates that are spaced from top to bottom and arranged horizontally, and the plurality of front row plates and the plurality of rear row plates correspond to each other one by one and have the same height; the hooks are arranged in a plurality from top to bottom, and when the hook shaft rotates, the hooks can extend into the gaps between adjacent rear row plates.

[0011] Preferably, the front discharge axle bracket includes a transversely arranged front upper beam, a front lower beam and a plurality of front vertical beams hinged at both ends to the front upper beam and the front lower beam respectively, and the front vertical beam is connected to a plurality of front plates from top to bottom through a hinge, the ends of the front upper beam and the front lower beam on the same side are hinged to the main frame, and the ends on the other side are vertically movably arranged on the main frame; the rear discharge axle bracket includes two rear vertical beams and a plurality of rear plates hinged on the two rear vertical beams, and the plurality of rear plates are spaced apart from each other from top to bottom, one of the rear vertical beams is fixed on the sliding part, and the other rear vertical beam can be moved vertically and is located on the same side as the movable end of the front upper beam or the front lower beam.

[0012] Preferably, the sliding portion includes an assembly frame, the assembly frame is further provided with a motor and a gear transmission-connected to the motor, and the main frame is provided with a rack for meshing with the gear.

[0013] Preferably, the bottom of the assembly frame is further provided with assembly frame wheels capable of sliding axially along the core shaft on the main frame.

[0014] Preferably, the core pulling device also includes a bracket, and the main frame is movably arranged on the bracket through a first adjusting wheel arranged at the bottom thereof, and the moving direction of the first adjusting wheel is perpendicular to the pulling-out direction of the core shaft; a second adjusting wheel is arranged at the bottom of the bracket, and the moving direction of the second adjusting wheel is parallel to the pulling-out direction of the core shaft.

[0015] The present invention also provides a lightweight wallboard core shaft core pulling method, comprising the following steps:

[0016] 1) Use the first and second adjusting wheels to adjust the positions of the bracket and the main frame so that the core shaft is inserted into the gap between the adjacent front plates;

[0017] 2) Start the motor, and the electric gear rotates on the rack, thereby driving the rear discharge shaft bracket and the core shaft extraction bracket to move toward the end of the core shaft. When the end of the core shaft is located on the rear plate, turn off the motor, and then drive the linkage rod and linkage arm to swing through the force-applying end, thereby driving the hook shaft to rotate, so that the hook enters the gap between the adjacent rear plates and hooks the fixing ring at the end of the core shaft;

[0018] 3) Start the motor again to drive the rear discharge shaft bracket and the core shaft extraction bracket away from the front discharge shaft bracket, and extract the core shaft. When the end of the core shaft is located on the front plate, turn off the motor and the rear discharge shaft bracket and the core shaft extraction bracket stop moving;

[0019] 4) The driving linkage rod and linkage arm are swung in the opposite direction through the force application end, thereby driving the hook shaft to reverse, so that the hook is separated from the fixing ring at the end of the core shaft and comes out from the gap between the adjacent rear plates;

[0020] 5) Simultaneously lift up or lower down the movable end of the front upper beam and the movable rear longitudinal beam to tilt the front and rear panels, and the core shaft rolls off the front and rear panels to complete the core pulling operation of the wall panel;

[0021] 6) Reset the front upper beam and the rear longitudinal beam and proceed to the next core pulling operation.

[0022] Compared with the prior art, the present invention has achieved the following technical effects:

[0023] 1. The present invention provides a connection portion that can automatically connect or disconnect the end of the mandrel, making the connection with the mandrel simpler, and provides a mandrel support bracket to facilitate the simultaneous discharge of several extracted mandrels, thereby improving the core pulling efficiency;

[0024] 2. The present invention provides a linkage rod and a linkage arm, which can drive multiple hook shafts to rotate simultaneously, thereby simultaneously pulling out the core shafts in several lightweight wall panels, and the core pulling efficiency is significantly improved;

[0025] 3. The present invention sets one end of the front discharge shaft bracket and one of the rear vertical beams as movable ends, which can automatically realize the discharge of the core shaft. Therefore, the core pulling device in the present invention can perform continuous core pulling operations, and the actions of extracting and discharging the core shaft are simple and effective, with high work efficiency, which can significantly improve the preparation efficiency of lightweight wall panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 Schematic diagram of the overall structure of the core pulling device in the present invention;

[0028] Figure 2 for Figure 1 A top view of

[0029] Figure 3 for Figure 1 Left view of;

[0030] Figure 4 It is a schematic diagram of the overall structure of the front axle bracket;

[0031] Figure 5 This is a schematic diagram of the overall structure of the rear exhaust shaft bracket;

[0032] Figure 6It is a schematic diagram of the overall structure of the mandrel extraction bracket;

[0033] Among them, 1. Main frame; 2. Core shaft extraction bracket; 3. Hook shaft; 4. Hook; 5. Linkage rod; 6. Linkage arm; 7. Assembly frame; 8. Motor; 9. Gear; 10. Rack; 11. Assembly frame wheel; 12. Upper connecting plate; 13. Lower connecting plate; 14. Front discharge shaft bracket; 15. Rear discharge shaft bracket; 16. Front row plate; 17. Rear row plate; 18. Front upper beam; 19. Front lower beam; 20. Front vertical beam; 21. Rear vertical beam; 22. Bracket; 23. First adjustment wheel; 24. Second adjustment wheel. DETAILED DESCRIPTION

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0035] The purpose of the present invention is to provide a core pulling device for a lightweight wall panel core shaft and a core pulling method thereof to solve the problems existing in the prior art. By providing a connecting part that can automatically connect to the end of the core shaft or disconnect from the end of the core shaft, the connection method with the core shaft is simpler, and a core shaft support bracket is provided to facilitate the simultaneous discharge of several pulled core shafts, thereby improving the core pulling efficiency.

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1:

[0038] like Figures 1 to 6 As shown, this embodiment provides a core shaft core pulling device for a lightweight wall panel, including a core shaft support bracket and a core shaft extraction bracket 2 arranged on a main frame 1. In the extraction direction of the core shaft, one end of the core shaft support bracket is fixed on the main frame 1, and the other end is close to the core shaft extraction bracket 2, and can move synchronously with the core shaft extraction bracket 2 along the extraction direction of the core shaft; the core shaft support bracket is used to support the extraction of the core shaft, and the core shaft extraction bracket 2 includes a connecting portion that can connect to the end of the core shaft or disconnect the connection with the end of the core shaft.

[0039] When in use, the connecting part on the core shaft extraction bracket 2 is used to fix the end of the core shaft. After the fixing is completed, the core shaft extraction bracket 2 and the movable end of the core bearing support bracket are moved axially along the core shaft to extract the core shaft. During the extraction process, both ends of the core bearing support bracket can support the core shaft, and the connecting part does not need to apply radial force to the core shaft through the end; after the core shaft is completely extracted, the movable end of the core bearing support bracket and the connecting part of the core shaft extraction bracket 2 are automatically disconnected from the end of the core shaft. After the core shaft is discharged from the core bearing support bracket, the next core pulling operation can be carried out.

[0040] This embodiment makes the connection with the core shaft simpler by providing a connection part that can automatically connect to or disconnect from the core shaft end, and provides a core shaft support bracket to facilitate the simultaneous discharge of several pulled out core shafts, thereby improving the core pulling efficiency.

[0041] Furthermore, the connecting part is a mechanism that can automatically connect to the end of the core shaft, and can be an electromagnetic component, which attracts the end of the core shaft through electromagnetic attraction, and disconnects from the core shaft after the electromagnetic component is powered off; in this embodiment, the connecting part includes a number of hook shafts 3 that are vertically parallel and can rotate synchronously, and a hook 4 is fixed on the hook shaft 3. The hook 4 is used to hook the fixing ring at the end of the core shaft, and the rotation of the hook shaft 3 drives the hook 4 to rotate, thereby realizing connection or disconnection with the fixing ring at the end of the core shaft; in order to be able to drive the hook shafts 3 to rotate at the same time, the connecting part in this embodiment also includes a linkage rod 5 and a number of linkage arms 6 hinged in parallel on the linkage rod 5, the linkage arm 6 is used to fix the end of the hook shaft 3, and the linkage rod 5 also has a force-applying end for driving it to move horizontally; when the linkage rod 5 is driven to move by the force-applying end, the linkage rod 5 drives the linkage arm 6 to rotate, thereby being able to drive a number of hook shafts 3 to rotate, and core pulling operations can be performed on multiple lightweight wall panels. Specifically, in this embodiment, two linkage rods 5 are provided in parallel, and both ends of the linkage arm 6 are hinged to the two linkage rods 5 respectively. A hole is opened in the middle of the linkage arm 6, and one end of the hook shaft 3 is fixed in the hole.

[0042] In this field, the cast lightweight wall panels are usually arranged vertically along their width direction, and the core shafts inside are arranged horizontally, usually 7 in number. In this embodiment, the number of hooks 4 on each hook shaft 3 is usually 7, but it can be changed according to the number of core shafts in the lightweight wall panels actually prepared to ensure that all the core shafts in the lightweight wall panels can be pulled out in one extraction; in addition, in this embodiment, by setting the linkage rod 5 and the linkage arm 6, multiple hook shafts 3 can be driven to rotate at the same time, so that the core shafts in several lightweight wall panels can be pulled out at the same time, and the core pulling efficiency is significantly improved.

[0043] Furthermore, in this embodiment, a sliding portion is slidably provided on the main frame 1 for driving the mandrel extraction bracket 2 and one end of the mandrel bearing support bracket to move in the mandrel extraction direction; the sliding portion includes an assembly frame 7, which is also provided with a motor 8 and a gear 9 in transmission connection with the motor 8, and the main frame 1 is provided with a rack 10 for engaging with the gear 9. The mandrel extraction bracket 2 also includes an upper connecting plate 12 and a lower connecting plate 13 arranged parallel to and fixed to the assembly frame 7. The upper connecting plate 12 is provided with a plurality of sleeves for sleeves on the hook shaft 3 at intervals, and the lower connecting plate 13 is provided with a limit portion for axially limiting the hook shaft 3 at intervals. The bottom of the assembly frame 7 is also provided with an assembly frame wheel 11 capable of sliding on the main frame 1 along the axial direction of the mandrel, thereby reducing the sliding resistance of the assembly frame 7 during the sliding process.

[0044] Furthermore, in this embodiment, the core bearing support bracket includes a front discharge shaft bracket 14 and a rear discharge shaft bracket 15; in the direction of extraction of the core shaft, the front discharge shaft bracket 14 is fixed to the main frame 1, and the rear discharge shaft bracket 15 is fixed to the assembly frame 7; the front discharge shaft bracket 14 includes a plurality of front row plates 16 spaced apart from each other and arranged horizontally from top to bottom; the rear discharge shaft bracket 15 includes a plurality of rear row plates 17 spaced apart from each other and arranged horizontally from top to bottom, and the plurality of front row plates 16 and the plurality of rear row plates 17 correspond to each other one by one and are of the same height; there are a plurality of hooks 4 arranged from top to bottom, and when the hook shaft 3 rotates, the hook 4 can extend into the gap between the adjacent rear row plates 17. In this embodiment, the front row plates 16 and the rear row plates 17 are horizontally opposite to each other, and each layer of the front row plates 16 and the rear row plates 17 facing each other serve as bearings for the core shaft. Support components, and the number of front plates 16 is equal to the number of core shafts in each wall panel, the interval between two adjacent front plates 16 can allow the core shaft to be inserted, and when the core shaft is pulled out, there is no other obstruction between the front discharge shaft bracket 14 and the rear discharge shaft bracket 15, and the discharge of the core shaft will not be hindered; it should be noted that the core shaft usually protrudes 200mm to 300mm from the wall panel, plus the size of the fixing ring, the exposed length may be further increased, therefore, the width of the front plate 16 and the rear plate 17 (the size in the direction of core shaft extraction) should be reasonably set to ensure that during the movement of the assembly frame 7, when the front plate 16 and the rear plate 17 are facing each other tightly, or before they are tightly attached, the end of the core shaft can reach the rear plate 17, and the fixing ring at the end of the core shaft can be hooked by the hook 4.

[0045] Furthermore, the front axle bracket 14 of the present embodiment includes a transversely arranged front upper beam 18, a front lower beam 19 and a plurality of front vertical beams 20 whose ends are hinged to the front upper beam 18 and the front lower beam 19 respectively. A plurality of front plates 16 are connected to the front vertical beam 20 from top to bottom through a hinge. The ends of the front upper beam 18 and the front lower beam 19 on the same side are hinged to the main frame 1, and the ends on the other side are vertically movably arranged on the main frame 1; the rear axle bracket 15 includes two rear vertical beams 21 and a plurality of rear plates 17 hinged to the two rear vertical beams 21. The plurality of rear plates 17 are spaced apart from each other from top to bottom, and one of the rear vertical beams 21 is fixed on On the sliding part, the other rear vertical beam 21 can move vertically and is located on the same side as the movable end of the front upper beam 18 or the front lower beam 19; when the core shaft is fully pulled out, the two ends of the core shaft are respectively located on the front row plate 16 and the rear row plate 17. After rotating the hook shaft 3 and removing the hook 4, the front upper beam 18 and the front lower beam 19 can be tilted by lifting or lowering the movable end of the front upper beam 18 and the movable rear vertical beam 21, thereby driving the front row plate 16 to tilt. After the rear vertical beam 21 moves, it can drive the rear row plate 17 to tilt, so that the core shafts on the front row plates 16 and the rear row plates 17 roll to one side and are discharged from the core pulling device, completing the core pulling operation.

[0046] Therefore, this embodiment can automatically realize the discharge of the core shaft by setting one end of the front discharge shaft bracket 14 and one of the rear vertical beams 21 as movable ends. Therefore, the core pulling device in this embodiment can perform continuous core pulling operations, and the action of extracting and discharging the core shaft is simple and effective, with high work efficiency, which can significantly improve the preparation efficiency of lightweight wall panels.

[0047] Specifically, in this embodiment, the mechanism for lifting or lowering the front upper beam 18 and the rear vertical beam 21 can be any existing device capable of achieving lifting, and this embodiment does not impose any specific limitation on this.

[0048] Furthermore, the core pulling device in this embodiment also includes a bracket 22, and the main frame 1 is movably set on the bracket 22 through the first adjustment wheel 23 set at its bottom, and the moving direction of the first adjustment wheel 23 is perpendicular to the extraction direction of the core shaft; a second adjustment wheel 24 is set at the bottom of the bracket 22, and the moving direction of the second adjustment wheel 24 is parallel to the extraction direction of the core shaft.

[0049] Example 2:

[0050] This embodiment provides a method for core pulling of a lightweight wall panel core shaft, comprising the following steps:

[0051] 1) Use the first adjusting wheel 23 and the second adjusting wheel 24 to adjust the position of the bracket 22 and the main frame 1 so that the core shaft is inserted into the gap between the adjacent front plates 16;

[0052] 2) Start the motor 8, and the electric gear 9 rotates on the rack 10, thereby driving the rear discharge shaft bracket 15 and the core shaft extraction bracket 2 to move toward the end of the core shaft. When the end of the core shaft is located on the rear plate 17, turn off the motor 8, and then drive the linkage rod 5 and linkage arm 6 to swing through the force application end, thereby driving the hook shaft 3 to rotate, so that the hook 4 enters the gap between the adjacent rear plates 17 and hooks the fixing ring at the end of the core shaft;

[0053] 3) Start the motor 8 again, drive the rear discharge shaft bracket 15 and the core shaft extraction bracket 2 away from the front discharge shaft bracket 14, and extract the core shaft. When the end of the core shaft is located on the front plate 16, turn off the motor 8, and the rear discharge shaft bracket 15 and the core shaft extraction bracket 2 stop moving;

[0054] 4) The driving linkage rod 5 and linkage arm 6 are swung in the opposite direction by the force application end, thereby driving the hook shaft 3 to reverse, so that the hook 4 is separated from the fixing ring at the end of the core shaft and comes out from the gap between the adjacent rear plates 17;

[0055] 5) Simultaneously lift up or lower down the movable end of the front upper beam 18 and the movable rear longitudinal beam to tilt the front and rear panels 16, 17. The core shaft rolls off the front and rear panels 16, 17, completing the core pulling operation of the wall panel.

[0056] 6) Reset the front upper beam 18 and the rear longitudinal beam and proceed to the next core pulling operation.

[0057] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0058] It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

Claims

1. A core pulling device for a lightweight wall panel, characterized in that: The invention comprises a core bearing support bracket and a core shaft extraction bracket arranged on a main frame, wherein in the extraction direction of the core shaft, one end of the core bearing support bracket is fixed to the main frame, and the other end is close to the core shaft extraction bracket and can be synchronously moved with the core shaft extraction bracket along the extraction direction of the core shaft; the core bearing support bracket is used to support the extraction of the core shaft, and the core shaft extraction bracket includes a connecting portion that can be connected to or disconnected from the end of the core shaft; The connecting portion includes a plurality of hook shafts arranged vertically and in parallel and capable of rotating synchronously, and a hook is fixed on the hook shaft, and the hook is used to hook the fixing ring at the end of the core shaft; The main frame is also slidably provided with a sliding portion for driving the core shaft extraction bracket and one end of the core shaft support bracket to move along the core shaft extraction direction; The core bearing support bracket includes a front discharge shaft bracket and a rear discharge shaft bracket; in the extraction direction of the core shaft, the front discharge shaft bracket is fixed to the main frame, and the rear discharge shaft bracket is fixed to the sliding part; the front discharge shaft bracket includes a plurality of front plates spaced apart from top to bottom and arranged horizontally; the rear discharge shaft bracket includes a plurality of rear plates spaced apart from top to bottom and arranged horizontally, and the plurality of front plates and the plurality of rear plates correspond to each other one by one and have the same height; the hooks are provided with a plurality of hooks from top to bottom, and when the hook shaft rotates, the hooks can extend into the gaps between adjacent rear plates; The sliding portion includes an assembly frame, the assembly frame is further provided with a motor and a gear transmission-connected to the motor, and the main frame is provided with a rack for meshing with the gear; The bottom of the assembly frame is also provided with an assembly frame wheel capable of sliding along the axial direction of the core shaft on the main frame; The core pulling device also includes a bracket, and the main frame is movably arranged on the bracket through a first adjusting wheel arranged at the bottom thereof, and the moving direction of the first adjusting wheel is perpendicular to the pulling-out direction of the core shaft; a second adjusting wheel is arranged at the bottom of the bracket, and the moving direction of the second adjusting wheel is parallel to the pulling-out direction of the core shaft.

2. The core pulling device for a lightweight wall panel according to claim 1, characterized in that: The connecting portion further comprises a linkage rod and a plurality of linkage arms hinged in parallel to the linkage rod, wherein the linkage arms are used to fix the end of the hook shaft, and the linkage rod further comprises a force-applying end for driving the linkage rod to translate.

3. The core pulling device for a lightweight wall panel according to claim 2, characterized in that: The core shaft extraction bracket also includes an upper connecting plate and a lower connecting plate arranged in parallel and fixed on the sliding part. The upper connecting plate is provided with a plurality of sleeves for sleeved on the hook shaft at intervals, and the lower connecting plate is provided with limiting parts for axially limiting the hook shaft at intervals.

4. The core pulling device for a lightweight wall panel according to claim 3, characterized in that: The front axle bracket includes a transversely arranged front upper beam, a front lower beam and a plurality of front vertical beams hinged at both ends to the front upper beam and the front lower beam respectively, and a plurality of front plates are connected to the front vertical beam from top to bottom through a hinge, and the ends of the front upper beam and the front lower beam on the same side are hinged to the main frame, and the ends on the other side are vertically movably arranged on the main frame; the rear axle bracket includes two rear vertical beams and a plurality of rear plates hinged on the two rear vertical beams, and the plurality of rear plates are spaced apart from each other from top to bottom, one of the rear vertical beams is fixed on the sliding part, and the other rear vertical beam can be moved vertically and is located on the same side as the movable end of the front upper beam or the front lower beam.

5. The core pulling device for a lightweight wall panel according to claim 4, characterized in that: The lightweight wallboard core shaft core pulling method comprises the following steps: 1) Use the first and second adjusting wheels to adjust the positions of the bracket and the main frame so that the core shaft is inserted into the gap between the adjacent front plates; 2) Start the motor, which drives the gear on the rack to rotate, thereby driving the rear discharge shaft bracket and the core shaft extraction bracket to move toward the end of the core shaft. When the end of the core shaft is located on the rear plate, turn off the motor, and then drive the linkage rod and linkage arm to swing through the force-applying end, thereby driving the hook shaft to rotate, so that the hook enters the gap between the adjacent rear plates and hooks the fixing ring at the end of the core shaft; 3) Start the motor again to drive the rear discharge shaft bracket and the core shaft extraction bracket away from the front discharge shaft bracket, and extract the core shaft. When the end of the core shaft is located on the front plate, turn off the motor and the rear discharge shaft bracket and the core shaft extraction bracket stop moving; 4) The driving linkage rod and linkage arm are swung in the opposite direction through the force application end, thereby driving the hook shaft to reverse, so that the hook is separated from the fixing ring at the end of the core shaft and comes out from the gap between the adjacent rear plates; 5) Simultaneously lift up or lower down the movable end of the front upper beam and the movable rear vertical beam to tilt the front and rear panels, and the core shaft rolls off the front and rear panels to complete the core pulling operation of the wall panel; 6) Reset the front upper beam and the rear vertical beam and proceed to the next core pulling operation.

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