Die cover placing device for light wallboard production line

Abstract

The invention discloses a mold cover placing device for a light wallboard production line. Comprising a hanging bracket, clamping mechanisms arranged on the two sides of the hanging bracket and used for clamping the side face of a mold body, a movable frame vertically connected with the hanging bracket in a sliding mode, a cover grabbing mechanism arranged on the movable frame and used for grabbing a mold cover, and a lifting hydraulic cylinder arranged between the hanging bracket and the movable frame and used for driving the movable frame to vertically move. The clamping mechanism clamps the mold body, and then the lifting hydraulic cylinder drives the cover grabbing mechanism to move downwards, so that the mold cover is placed on the mold body. After the clamping mechanism clamps the mold main body, the position of the pressing strip on the mold cover is aligned with the trapezoidal groove in the top surface of the mold main body, so that the working efficiency when the mold cover is aligned with the mold main body is improved. The die cover is driven by the lifting hydraulic cylinder to move downwards, the pressing strip is pressed into the trapezoidal groove, the downward pressure applied to the die cover can be increased, and therefore the working efficiency is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of prefabricated wallboard production equipment, and in particular to a mold cover placing device for a lightweight wallboard production line. Background Art

[0002] Lightweight wall panels are a common prefabricated component in the construction field, which can speed up the construction progress of buildings and improve work efficiency. Lightweight wall panels are cast in a mold. The mold includes a mold body and a mold cover placed on the top of the mold body. The top of the mold body is provided with a long trapezoidal groove, and the bottom of the mold cover is provided with a long trapezoidal strip for matching with the trapezoidal groove.

[0003] To improve production efficiency, lightweight wall panels are produced on a production line. In the production line, after pouring concrete into the mold body, the mold cover needs to be lifted by a crane using a wire rope, and then the crane drives the mold cover to the top of the mold body, and then the wire rope descends to place the mold cover on the top of the mold body, so that the pressure strip at the bottom of the mold cover enters the trapezoidal groove at the top of the mold body. After the mold cover is lifted by the crane, it is easy to shake during the descent process, which makes it difficult to align the pressure strip with the trapezoidal groove, making it time-consuming and laborious to place the mold cover on the mold body. In addition, since the contact area between the pressure strip and the concrete is large, the concrete will cause a large buoyancy on the mold cover. Under the action of gravity, the pressure strip of the mold cover will slowly move downward into the trapezoidal groove, thereby prolonging the time to place the mold cover.

[0004] The patent with publication number CN218619812U discloses a mold hoist, including a mounting frame, a power source and a lifting assembly, wherein the lifting assembly is provided in two groups and is respectively provided on both sides of the bottom of the mounting frame; by providing lifting assemblies on both sides of the bottom of the mounting frame, on the one hand, compared with the existing single mold hoist, the lifting efficiency can be effectively improved, and the transportation speed of the mold can be increased; on the other hand, since lifting assemblies are provided on both sides of the bottom of the mounting frame, the weight of the mold on one side is equal to the weight of the mold on the other side, so that balanced lifting on both sides is achieved, and the lifting is stable. However, when it is used to place the mold cover, the mold cover will slowly fall and press on the mold body under the buoyancy of the concrete, thereby prolonging the time of placing the mold cover. The patent with publication number CN217867665U discloses a mold placing auxiliary tooling, including a mold placing frame matching the sand box and a number of connecting assemblies. The mold placement auxiliary tooling disclosed in the utility model is arranged between the lifting device and the mold. During the process of lifting and placing the mold, the mold placement frame always remains horizontal; the mold placement process is accurately positioned by matching the mold placement frame with the sand box to prevent the mold from being damaged by collision and reduce the casting defect rate. However, during the process of placing the mold cover, the mold cover will slowly fall down under the action of concrete and press on the mold body, so there is also the problem of long mold cover placement time. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a mold cover placing device for a lightweight wall panel production line, which is used to solve the problem that it takes a long time to place the mold cover on the mold body.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A mold cover placing device for a lightweight wall panel production line comprises a hanger, a clamping mechanism arranged on both sides of the hanger for clamping the side surfaces of a mold body, a movable frame vertically slidably connected to the hanger, a cover grabbing mechanism arranged on the movable frame for grabbing the mold cover, and a lifting hydraulic cylinder arranged between the hanger and the movable frame for driving the movable frame to move vertically.

[0008] Furthermore, the clamping mechanisms are at least two symmetrically arranged on opposite sides of the hanger, and each clamping mechanism includes a vertical clamping arm fixedly connected to the side of the hanger, a clamping claw arranged at the bottom of the clamping arm, and a clamping hydraulic cylinder arranged on the outside of the clamping arm. The upper end of the clamping claw is rotatably connected to the clamping arm, the upper end of the clamping hydraulic cylinder is hinged to the clamping arm, and the lower end of the clamping hydraulic cylinder is hinged to the middle part of the clamping claw. When the clamping hydraulic cylinder is actuated, it drives the lower end of the clamping claw to approach or move away from the side of the mold body.

[0009] Furthermore, the grab cover mechanism is symmetrically arranged at least two on two opposite sides of the hanger, and each grab cover mechanism includes a vertical grabbing arm, the upper end of the grabbing arm is connected to the movable frame, the lower end of the grabbing arm is provided with a vertical notch, the grabbing arm is provided with a C-shaped grabbing claw opening inward at the notch, the upper end of the grabbing claw is rotatably connected to the grabbing arm, and a grabbing hydraulic cylinder is provided on the outer side of the grabbing arm, the upper end of the grabbing hydraulic cylinder is hinged to the grabbing arm, and the lower end of the grabbing hydraulic cylinder is hinged to the middle part of the grabbing claw. When the grabbing hydraulic cylinder is actuated, it drives the lower end of the grabbing claw to cross the notch or move away from the notch. When the lower end of the grabbing claw crosses the notch, a closed ring is formed between the grabbing claw and the notch.

[0010] Furthermore, the upper end of the grabbing arm is rotatably connected to the movable frame, and a swing hydraulic cylinder is provided between the grabbing arm and the movable frame. One end of the swing hydraulic cylinder is hinged to the movable frame, and the other end is hinged to the middle part of the grabbing arm.

[0011] Furthermore, a longitudinal beam is provided above the hanger, a longitudinal track is provided on the longitudinal beam, a carriage that can move longitudinally thereof is provided on the track, a winch is provided on the carriage, and a steel wire rope of the winch is fixedly connected to the hanger.

[0012] Furthermore, a damping mechanism is provided between the steel wire rope and the hanger, and the damping mechanism includes a vertical sleeve, a movable block arranged in the sleeve, a vertical sliding rod whose upper end is fixedly connected to the bottom of the movable block, an upper end cover fixedly connected to the top of the sleeve, and a lower end cover fixedly connected to the bottom of the sleeve; the sleeve is filled with damping oil, the movable block is clearance-matched with the sleeve, the sliding rod is slidingly connected with the lower end cover, the sliding rod is sealingly matched with the lower end cover, the lower end of the sliding rod is connected to the hanger, and the upper end cover is connected to the steel wire rope.

[0013] Furthermore, the lower part of the movable block is truncated cone-shaped, the shape of the inner wall of the lower part of the sleeve corresponds to the shape of the lower part of the movable block, and a second spring sleeved on the slide rod is provided between the movable block and the lower end cover.

[0014] Furthermore, the interior of the sleeve is divided into two parts by a movable block, namely an upper oil chamber closer to the top and a lower oil chamber closer to the bottom. A bypass pipe connecting the upper oil chamber and the lower oil chamber is provided outside the sleeve. A one-way valve is provided on the bypass pipe. The direction of unidirectional flow of liquid in the bypass pipe is from the upper oil chamber to the lower oil chamber.

[0015] Furthermore, at least two plug rods are provided on the top of the hanger, and sockets for matching with the plug rods are provided under the crane. After the hanger rises, the plug rods are respectively inserted into the corresponding sockets.

[0016] Furthermore, it is characterized in that the mold cover includes a mesh frame, and horizontal suspension rods are fixedly connected to the opposite sides of the frame respectively. A horizontal pressure strip is provided under the frame, and the pressure strip is vertically slidably connected to the frame, and a third spring is provided between the pressure strip and the frame.

[0017] The positive effects of the present invention are:

[0018] 1. The present invention is provided with a crane, a winch is provided on the crane, a clamping mechanism is provided under the crane, a movable frame is provided on the clamping mechanism, and a cover grabbing mechanism and a lifting hydraulic cylinder are provided on the movable frame. After the cover grabbing mechanism grabs the mold cover, the winch lifts the mold cover and then sends it to the top of the mold body through the crane. The winch drives the mold cover to move downward, the clamping mechanism clamps the mold body, and then the lifting hydraulic cylinder drives the cover grabbing mechanism to move downward so that the mold cover is placed on the mold body. After the clamping mechanism clamps the mold body, the position of the pressure strip on the mold cover is aligned with the trapezoidal groove on the top surface of the mold body, thereby improving the work efficiency when the mold cover and the mold body are aligned. The mold cover moves downward under the drive of the lifting hydraulic cylinder, pressing the pressure strip into the trapezoidal groove, which can increase the downward pressure applied to the mold cover, thereby further improving the work efficiency.

[0019] 2. The present invention is provided with a swing hydraulic cylinder between the movable frame and the cover grabbing mechanism. When the lifting hydraulic cylinder drives the mold cover to move downward, the swing hydraulic cylinder drives the grabbing arm of the cover grabbing mechanism to swing in an arc shape in the longitudinal vertical plane, thereby driving the mold cover to swing, so that the pressure strip rubs against the top of the concrete in an arc shape when contacting with the concrete on the top of the mold body, bringing out the bubbles on the surface of the concrete, so that the pressure strip and the concrete fit closely, thereby preventing bubbles from appearing on the surface of the produced wallboard, and ensuring product quality.

[0020] 3. The present invention is also provided with a damping mechanism. When the wire rope pulls the hanger upward, the damping mechanism gradually applies the weight of the mold cover to the wire rope from small to large, so as to reduce the tension on the wire rope when just lifting, thereby extending the service life of the wire rope and making the lifting of the mold cover more stable and safe. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a stereogram of the present invention when it is working;

[0022] Figure 2 This is a schematic diagram of the hanger and cover grabbing mechanism viewed from above;

[0023] Figure 3 yes Figure 2 An enlarged view of the cover grabbing mechanism on the middle left;

[0024] Figure 4 It is a three-dimensional diagram of the hanger, the clamping mechanism and the cover grabbing mechanism;

[0025] Figure 5 This is a schematic diagram of the mold cover after it is lifted;

[0026] Figure 6 It is a working diagram of the present invention viewed from the front side;

[0027] Figure 7 is a structural diagram of the damping mechanism;

[0028] Figure 8 is a schematic diagram of the top of the mold cover;

[0029] Fig. 9 is a schematic diagram of the bottom of the mold cover;

[0030] Fig.10 It is a schematic diagram of the connection between the layering and the frame;

[0031] In the figure:

[0032] 1. Mould cover; 2. Grasping cover mechanism; 3. Wire rope; 4. Winch; 5. Travel motor; 6. Crane; 7. Longitudinal beam; 8. Track; 9. Hanger; 10. Notch; 11. Grabbing claw; 12. Grabbing hydraulic cylinder; 13. Grabbing arm; 14. Mounting seat; 15. Movable frame; 16. Lifting hydraulic cylinder; 17. Insert rod; 18. Hydraulic station; 19. Clamping hydraulic cylinder; 20. Clamping arm; 21. Slide rail module; 22. Lifting seat; 23. Clamping claw; 24. Swinging hydraulic cylinder; 25. First spring; 26. Mould body; 27. Socket; 28. Trapezoidal groove; 29. ​​Frame; 30. Hanging rod; 31. Pressure strip; 32. Clamping mechanism; 33. Connecting buckle; 34. Slide rod; 35. Lower end cover; 36. Bypass pipe. 37. One-way valve; 38. Second spring; 39. Lower oil chamber; 40. Movable block; 41. Upper oil chamber; 42. Sleeve; 43. Upper end cover; 44. Lifting ring; 45. Electric control box; 46. Mounting plate; 47. Third spring; 48. Fourth spring; 49. Connecting rod; 50. Baffle. DETAILED DESCRIPTION

[0033] For the convenience of description, in the following description, the direction consistent with the track 8 is "longitudinal", and the direction perpendicular to the track 8 in the horizontal plane is "transverse". In the horizontal plane, the direction of the electric control box 45 relative to the mold cover 1 is "front", and the opposite direction is "rear".

[0034] Example 1

[0035] like Figures 1 to 6 As shown, a mold cover placing device for a lightweight wall panel production line includes a rectangular hanger 9 welded from steel sections, a clamping mechanism 32 arranged on both sides of the hanger 9 for clamping the two sides of the mold body 26, a vertical movable frame 15 slidably connected to the front and rear sides of the hanger 9 through a vertical slide rail module 21, a cover grabbing mechanism 2 arranged on the movable frame 15 for grabbing the mold cover 1, and a lifting hydraulic cylinder 16 arranged between the hanger 9 and the movable frame 15 for driving the movable frame 15 to move vertically. There are four lifting hydraulic cylinders 16, and the four lifting hydraulic cylinders 16 are arranged in groups of two between the hanger 9 and the two movable frames 15. The upper end of the lifting hydraulic cylinder 16 is hinged to the hanger 9, and the lower end of the lifting hydraulic cylinder 16 is hinged to the movable frame 15.

[0036] Two longitudinal beams 7 are arranged above the hanger 9, and legs are fixedly arranged at intervals at the bottom of each longitudinal beam 7. A longitudinal track 8 is fixedly arranged on the top surface of each longitudinal beam 7, and a rectangular trolley 6 that can move longitudinally is arranged on the two tracks 8. Two travel motors 5 are arranged on the trolley 6 near the rear side, which are used to drive the two rear wheels of the trolley 6 to rotate so that the trolley 6 can move longitudinally on the two tracks 8. The structure and travel principle of the trolley 6 are the same as those of the overhead crane commonly used in factory workshops at present, and will not be repeated here.

[0037] The traveling crane 6 is provided with a winch 4, which is provided with two front and rear drums. The reducer of the winch 4 has an output shaft at both ends, each output shaft drives a drum, and each drum is wound with two steel wire ropes 3. There are four steel wire ropes 3 in total. The four steel wire ropes 3 are respectively passed around the pulleys correspondingly arranged near the four corners of the traveling crane 6 and then fixedly connected downward to the four corners of the hanger 9. The winch 4 is driven by a motor. When the winch 4 is working, the four corners of the hanger 9 are synchronously pulled by the four steel wire ropes 3.

[0038] The hanger 9 is fixedly connected with a lifting seat 22 made of steel plate near the corners on both sides, and four steel wire ropes 3 are respectively connected to the outer ends of the four lifting seats 22. The clamping mechanism 32 is four and is respectively arranged under the four lifting seats 22. Each clamping mechanism 32 includes a vertical clamping arm 20 fixedly connected under the corresponding lifting seat 22, a clamping claw 23 arranged at the bottom of the clamping arm 20, and a clamping hydraulic cylinder 19 arranged on the outer side of the clamping arm 20. The clamping claw 23 is a C-shaped opening facing inward, the upper end of the clamping claw 23 is hinged to the clamping arm 20, the upper end of the clamping hydraulic cylinder 19 is hinged to the outer side of the upper part of the clamping arm 20, and the lower end of the clamping hydraulic cylinder 19 is hinged to the lug on the outer side of the middle part of the clamping claw 23. When the clamping hydraulic cylinder 19 is in motion, it drives the lower end of the clamping claw 23 to approach or move away from the side of the mold body 26.

[0039] The four cover grabbing mechanisms 2 are symmetrically arranged on the front and rear sides of the hanger 9, and the four cover grabbing mechanisms 2 are distributed in a rectangular shape. Each cover grabbing mechanism 2 includes a vertical grabbing arm 13, the upper end of which is connected to the outer side of the movable frame 15, and the lower end of which is provided with a vertical notch 10. The grabbing arm 13 is provided with a C-shaped grabbing claw 11 with an opening facing inward at the notch 10, and the upper end of the grabbing claw 11 is rotatably connected to the grabbing arm 13. A grabbing hydraulic cylinder 12 is provided on the outer side of the grabbing arm 13, and the upper end of the grabbing hydraulic cylinder 12 is hinged to the upper outer side of the grabbing arm 13, and the lower end of the grabbing hydraulic cylinder 12 is hinged to the lug on the outer side of the middle part of the grabbing claw 11. When the grabbing hydraulic cylinder 12 is actuated, it drives the lower end of the grabbing claw 11 to cross the notch 10 or move away from the notch 10. When the lower end of the grabbing claw 11 crosses the notch 10, a closed ring is formed between the grabbing claw 11 and the notch 10.

[0040] Combination Figures 8 to 10As shown, the mold cover 1 includes a mesh frame 29, the outer frame of the frame 29 is rectangular, and two horizontal suspension rods 30 are fixedly connected to the front and rear sides of the frame 29, respectively. A horizontal pressure strip 31 is provided below the frame 29, and the pressure strip 31 is longitudinally arranged. The pressure strip 31 is a plurality of parallel strips, and the number of the pressure strips 31 is the same as the number of the trapezoidal grooves 26 at the top of the mold body 26. A vertical connecting rod 49 is hinged on the top of the pressure strip 31, and a rectangular horizontal mounting plate 46 is welded on the frame 29 and is connected to the connecting rod 49 through sliding. A baffle 50 fixedly connected to the connecting rod 49 is provided above and below the mounting plate 46, and a third spring 47 sleeved on the connecting rod 49 is provided between the mounting plate 46 and the lower baffle 50, and a fourth spring 48 sleeved on the connecting rod 49 is provided between the mounting plate 46 and the upper baffle 50.

[0041] The top of the hanger 9 is fixedly connected with vertical plug rods 17 near the four corners, and the bottom of the frame of the crane 6 is fixedly provided with cylindrical sockets 27 for matching with the plug rods 17 at positions corresponding to the four plug rods 17. After the hanger 9 is raised, the four plug rods 17 are respectively inserted into the four sockets 27.

[0042] A hydraulic station 18 is also installed in the middle of the hanger 9, and an electric control box 45 is provided on the ground next to the front column. The electric control box 45 can control the travel motor 5 and the motor of the winch 4. The electric control box 45 can control the clamping hydraulic cylinder 19, the grabbing hydraulic cylinder 12 and the lifting hydraulic cylinder 16 by controlling the hydraulic station 18.

[0043] The working process of the present invention is:

[0044] 1. After the mold body 26 is injected with concrete, the wire rope 3 is lowered under the drive of the winch 4, so that the four suspension rods 30 on the mold cover 1 respectively enter the notches 10 at the bottom of the four grab arms 13, and then the four grab hydraulic cylinders 12 are actuated to drive the lower ends of the four grab claws 11 to move inward, so that a closed ring is formed between the grab claws 11 and the notches 10, and the suspension rod 30 is located in the ring, so that the grab claws 11 grab the suspension rod 30 to achieve the grabbing of the mold cover 1.

[0045] 2. Driven by the winch 4, the mold cover 1 is lifted, and the four insertion rods 17 are respectively inserted into the four sockets 27, and then the travel motor 5 drives the crane 6 to travel longitudinally, so that the mold cover 1 reaches the top of the mold body 26. Under the action of the sockets 27 and the insertion rods 17, the mold cover 1 will not shake during the longitudinal transfer, thereby facilitating the accurate positioning of the mold cover 1, so that the mold cover 1 can be accurately moved to the top of the mold body 26.

[0046] 3. The winch 4 works to drive the mold cover 1 downward, so that the bottom surfaces of the four clamping arms 20 abut against the top surface of the mold body 26. At this time, the lower ends of the four clamping claws 23 are lower than the top surface of the mold body 26.

[0047] 4. The four clamping hydraulic cylinders 19 are actuated to clamp the lower ends of the four clamping jaws 23 on the side surfaces of the mold body 26.

[0048] 5. The lifting hydraulic cylinder 16 is activated. After the four clamping claws 23 are clamped on the side of the mold body 26, the position of the hanger 9 is locked. Therefore, the movable frame 15 will move downward along the hanger 9 driven by the lifting hydraulic cylinder 16, so that the mold cover 1 is placed on the mold body 26, and the pressure strip 31 is pressed into the corresponding trapezoidal groove 28 on the top surface of the mold body 26. Under the action of the third spring 47, the pressure strip 31 and the trapezoidal groove 28 are kept in close contact, preventing the pressure strip 31 from moving up due to the buoyancy of the concrete, thereby causing the corresponding groove size on the side of the produced wallboard to fail to meet the design requirements.

[0049] After the four clamps 23 clamp the mold body 26, the position of the pressure strip 31 on the mold cover 1 is aligned with the trapezoidal groove 28 on the top surface of the mold body 26, thereby improving the working efficiency when the mold cover 1 and the mold body 26 are aligned. The mold cover 1 moves downward under the drive of the lifting hydraulic cylinder 16, pressing the pressure strip 31 into the trapezoidal groove 28, which can increase the downward pressure applied to the mold cover 1, thereby further improving the working efficiency.

[0050] Example 2

[0051] like Figure 4 and Figure 5 As shown, two mounting seats 14 are fixedly connected to the outer side of each movable frame 15, and the upper ends of the four grabbing arms 13 are rotatably connected to the corresponding mounting seats 14 respectively. A swing hydraulic cylinder 24 is provided between the two rear grabbing arms 13 and the rear movable frame 15, and the swing hydraulic cylinder 24 is connected to the hydraulic station 18. One end of the swing hydraulic cylinder 24 is hinged to the lug at the bottom of the movable frame 15, and the other end is hinged to the middle part of the inner side of the grabbing arm 13.

[0052] A connecting rod is provided between the two front grabbing arms 13 and the front movable frame 15. A rotating shaft 51 is rotatably connected to the lug at the bottom of the movable frame 15. One end of the connecting rod is slidably connected to the rotating shaft 51, and the other end is hinged to the middle of the grabbing arm 13. A second spring 25 is provided between the grabbing arm 13 and the rotating shaft 51 and is sleeved on the connecting rod to return the grabbing arm 13. A nut is screwed on the outer end of the connecting rod to limit the connecting rod.

[0053] When the lifting hydraulic cylinder 16 drives the mold cover 1 to move downward, the swing hydraulic cylinder 24 drives the grabbing arm 13 to swing in an arc shape in the longitudinal vertical plane, thereby driving the mold cover 1 to swing, so that the pressure strip 31 rubs against the top of the concrete in an arc shape when contacting the concrete on the top of the mold body 26, bringing out the bubbles on the surface of the concrete, so that the pressure strip 31 and the concrete fit tightly, thereby preventing bubbles from appearing on the surface of the produced wallboard, thereby ensuring product quality.

[0054] Example 3

[0055] like Figure 7 As shown, a damping mechanism is provided between the steel wire rope 3 and the lifting seat 22, and the damping mechanism includes a vertical sleeve 42, a movable block 40 arranged in the sleeve 42, a vertical slide rod 34 whose upper end is fixedly connected to the bottom of the movable block 40, an upper end cover 43 fixedly connected to the top of the sleeve 42 by screws, and a lower end cover 35 fixedly connected to the bottom of the sleeve 42 by screws; the sleeve 42 is filled with damping oil, the movable block 40 and the sleeve 42 are clearance-matched, the slide rod 34 and the lower end cover 35 are slidingly connected through, the slide rod 34 and the lower end cover 35 are sealed by two sealing rings, the lower end of the slide rod 34 is fixedly connected with a connecting buckle 33, the connecting buckle 33 is hinged to the outer end of the lifting seat 22, the center of the upper end cover 43 is fixedly connected with a lifting ring 44, and the steel wire rope 3 is tied to the lifting ring 44.

[0056] The lower part of the movable block 40 is truncated cone-shaped, the inner wall shape of the lower part of the sleeve 42 corresponds to the shape of the lower part of the movable block 40 , and a second spring 38 sleeved on the slide rod 34 is provided between the movable block 40 and the lower end cover 35 .

[0057] The interior of the sleeve 42 is divided into two parts by a movable block 40, namely an upper oil chamber 41 and a lower oil chamber 39. A bypass pipe 36 is provided outside the sleeve 42 to connect the upper oil chamber 41 and the lower oil chamber 39. A one-way valve 37 is provided on the bypass pipe 36. The direction of unidirectional flow of liquid in the bypass pipe 36 is from the upper oil chamber 41 to the lower oil chamber 39.

[0058] When the wire rope 3 pulls the hanger 9 upward, the movable block 40 moves downward along the inner wall of the sleeve 42, the one-way valve 37 is closed, and the damping oil flows from the lower oil chamber 39 through the gap between the movable block 40 and the sleeve 42 into the upper oil chamber 41, forming resistance. When the truncated cone surface at the bottom of the movable block 40 approaches the inner wall of the sleeve 42, the gap between the sleeve 42 and the movable block 40 gradually decreases, so that the resistance generated by the damping oil gradually increases, so that the weight of the mold cover 1 is gradually applied to the wire rope 3 from small to large, so as to reduce the tension on the wire rope 3 when it is just lifted, thereby extending the service life of the wire rope 3.

[0059] When the mold cover 1 is placed on the mold body 26, the sleeve 42 continues to move downward. Under the action of the gravity of the sleeve 42 and the elastic force of the second spring 38, most of the damping oil flows from the upper oil chamber 41 into the bypass pipe 36, opens the one-way valve 37, and flows into the lower oil chamber 39, thereby causing the sleeve 42 to move downward quickly to prevent the wire rope 3 from loosening.

[0060] The above-mentioned embodiments are described in a relatively detailed and specific manner, expressing the preferred embodiments of the present invention, and are only used to illustrate the technical ideas and features of the present invention. The purpose is to enable technicians in this field to understand the contents of the present invention and implement them accordingly, but are not limited to the present invention. The patent scope of the present invention cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present invention, for researchers or technicians in this field, without departing from the structure of the present invention, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present invention.

Claims

1. A mold cover placing device for a lightweight wallboard production line, characterized in that: The invention comprises a hanger (9), a clamping mechanism (32) arranged on both sides of the hanger (9) for clamping the side surfaces of a mold body (26), a movable frame (15) vertically slidably connected to the hanger (9), a cover grabbing mechanism (2) arranged on the movable frame (15) for grabbing a mold cover (1), and a lifting hydraulic cylinder (16) arranged between the hanger (9) and the movable frame (15) for driving the movable frame (15) to move vertically.

2. A mold capping device for a lightweight wallboard production line according to claim 1, characterized in that: The clamping mechanisms (32) are at least two symmetrically arranged on opposite sides of the hanger (9), and each clamping mechanism (32) includes a vertical clamping arm (20) fixedly connected to the side of the hanger (9), a clamping claw (23) arranged at the bottom of the clamping arm (20), and a clamping hydraulic cylinder (19) arranged on the outside of the clamping arm (20). The upper end of the clamping claw (23) is rotatably connected to the clamping arm (20), the upper end of the clamping hydraulic cylinder (19) is hinged to the clamping arm (20), and the lower end of the clamping hydraulic cylinder (19) is hinged to the middle part of the clamping claw (23). When the clamping hydraulic cylinder (19) is actuated, it drives the lower end of the clamping claw (23) to approach or move away from the side of the mold body (26).

3. The mold capping device for a lightweight wallboard production line according to claim 1 is characterized in that: The cover grabbing mechanisms (2) are at least two symmetrically arranged on opposite sides of the hanger (9), and each cover grabbing mechanism (2) comprises a vertical grabbing arm (13), the upper end of the grabbing arm (13) is connected to the movable frame (15), the lower end of the grabbing arm (13) is provided with a vertical notch (10), the grabbing arm (13) is provided with a C-shaped grabbing claw (11) with an opening inward at the notch (10), the upper end of the grabbing claw (11) is rotatably connected to the grabbing arm (13), and the grabbing arm (13) is provided with a vertical notch (10). A grabbing hydraulic cylinder (12) is provided on the outer side of the grabbing arm (13), the upper end of the grabbing hydraulic cylinder (12) is hinged to the grabbing arm (13), and the lower end of the grabbing hydraulic cylinder (12) is hinged to the middle of the grabbing claw (11). When the grabbing hydraulic cylinder (12) is in motion, it drives the lower end of the grabbing claw (11) to cross the notch (10) or move away from the notch (10). When the lower end of the grabbing claw (11) crosses the notch (10), a closed ring is formed between the grabbing claw (11) and the notch (10).

4. A mold capping device for a lightweight wallboard production line according to claim 3, characterized in that: The upper end of the grabbing arm (13) is rotatably connected to the movable frame (15), and a swing hydraulic cylinder (24) is provided between the grabbing arm (13) and the movable frame (15). One end of the swing hydraulic cylinder (24) is hinged to the movable frame (15), and the other end is hinged to the middle part of the grabbing arm (13).

5. The mold capping device for a lightweight wallboard production line according to claim 1 is characterized in that: A longitudinal beam (7) is arranged above the hanger (9), a longitudinal track (8) is arranged on the longitudinal beam (7), a traveling vehicle (6) which can move in the longitudinal direction thereof is arranged on the track (8), a winch (4) is arranged on the traveling vehicle (6), and a steel wire rope (3) of the winch (4) is fixedly connected to the hanger (9).

6. A mold capping device for a lightweight wallboard production line according to claim 5, characterized in that: A damping mechanism is provided between the steel wire rope (3) and the hanger (9), and the damping mechanism comprises a vertical sleeve (42), a movable block (40) arranged in the sleeve (42), a vertical sliding rod (34) whose upper end is fixedly connected to the bottom of the movable block (40), an upper end cover (43) fixedly connected to the top of the sleeve (42), and a lower end cover (35) fixedly connected to the bottom of the sleeve (42); the sleeve (42) is filled with damping oil, the movable block (40) and the sleeve (42) are clearance-matched, the sliding rod (34) and the lower end cover (35) are slidably connected through, the sliding rod (34) and the lower end cover (35) are sealingly matched, the lower end of the sliding rod (34) is connected to the hanger (9), and the upper end cover (43) is connected to the steel wire rope (3).

7. A mold capping device for a lightweight wallboard production line according to claim 6, characterized in that: The lower part of the movable block (40) is truncated cone-shaped, the inner wall shape of the lower part of the sleeve (42) corresponds to the shape of the lower part of the movable block (40), and a second spring (38) sleeved on the slide rod (34) is provided between the movable block (40) and the lower end cover (35).

8. The mold capping device for a lightweight wallboard production line according to claim 6, characterized in that: The interior of the sleeve (42) is divided into two parts by a movable block (40), namely an upper oil chamber (41) at the top and a lower oil chamber (39) at the bottom. A bypass pipe (36) is provided outside the sleeve (42) to connect the upper oil chamber (41) and the lower oil chamber (39). A one-way valve (37) is provided on the bypass pipe (36). The direction of unidirectional flow of liquid in the bypass pipe (36) is from the upper oil chamber (41) to the lower oil chamber (39).

9. The mold capping device for a lightweight wallboard production line according to claim 5, characterized in that: At least two insertion rods (17) are arranged on the top of the hanger (9), and sockets (27) for matching with the insertion rods (17) are arranged under the crane (6). After the hanger (9) rises, the insertion rods (17) are respectively inserted into the corresponding sockets (27).

10. A mold capping device for a lightweight wallboard production line according to any one of claims 1 to 9, characterized in that: The mold cover (1) comprises a mesh frame (29), and horizontal suspension rods (30) are fixedly connected to opposite sides of the frame (29), and a horizontal pressure strip (31) is arranged below the frame (29), and the pressure strip (31) is vertically slidably connected to the frame (29), and a third spring is arranged between the pressure strip (31) and the frame (29).

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