Packing machine for fireproof rock wool sandwich panel production line

Abstract

The utility model discloses a packing machine for a fireproof rock wool sandwich panel production line, which comprises a base, an annular winder is arranged on the upper end face of the base, a moving mechanism is arranged on the base and positioned on one side of the annular winder, and a rotating mechanism is arranged at the upper end of the base and positioned on one side of the moving mechanism. Conveyor belts are arranged on the sides, away from each other, of the annular winding device and the rotating mechanism. The rock wool laminboard winding device is simple in structure and reasonable in design, the rock wool laminboard can rotate by 90 degrees after transverse winding is completed, then longitudinal winding is carried out, the defect that in the prior art, only transverse plastic film winding and packaging can be carried out is overcome, it is guaranteed that all faces and side edges of the rock wool laminboard can be evenly and tightly protected, and the service life of the rock wool laminboard is prolonged. And the requirements of current customers for plate transportation and long-term storage are met, meanwhile, transfer and position adjustment in the horizontal direction in the rock wool laminboard packaging process are achieved, and the laminboard can be accurately adsorbed through a suction cup.

Description

Technical Field

[0001] The utility model relates to the technical field of plate packaging equipment, in particular to a packaging machine for a fireproof rock wool sandwich panel production line. Background Art

[0002] Fireproof rock wool sandwich panels are widely used in construction, shipbuilding, refrigeration and other fields due to their excellent sound insulation, heat preservation and fire resistance. In order to prevent these rock wool sandwich panels from being damaged during transportation and storage, it is particularly important to use plastic film to effectively cover and pack the rock wool sandwich panels. In addition, a good packaging process can not only protect the panels, but also improve their sales value and aesthetics in the market. Therefore, the development of an efficient and comprehensive rock wool sandwich panel packaging machine is of great significance to improving the overall quality and market competitiveness of the product.

[0003] Deficiencies of existing technology:

[0004] At present, the packaging of rock wool sandwich panels is mainly carried out by automatic transverse wrapping and packaging through a wrapper in cooperation with a conveyor belt. The sandwich panel passes through the inside of the wrapper under the action of the conveyor belt. In this process, the wrapper wraps the plastic film transversely around the outside of the sandwich panel. Although this process can completely wrap the upper and lower end surfaces of the sandwich panel, it still has obvious shortcomings. Since the sandwich panel can only be wrapped transversely, the two ends of the panel are often exposed and uncovered, and comprehensive protection cannot be provided. This incomplete wrapping method makes the two ends of the panel vulnerable to damage during transportation and storage, especially under harsh environmental conditions. Therefore, the traditional packaging method can no longer meet the actual transportation and storage needs of the current fire-resistant rock wool sandwich panels. Utility Model Content

[0005] The purpose of the utility model is to provide a baling machine for a fireproof rock wool sandwich panel production line to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a baler for a fireproof rock wool sandwich panel production line, comprising a base, an annular winding device is arranged on the upper end surface of the base, a moving mechanism is arranged on one side of the annular winding device on the base, a rotating mechanism is arranged on the upper end of the base on one side of the moving mechanism, and a conveyor belt is arranged on the side of the annular winding device and the rotating mechanism away from each other;

[0007] The rotating mechanism comprises:

[0008] A telescopic rod, wherein the telescopic rod is arranged on the upper end surface of the base, and a first motor is arranged at the upper end of the telescopic rod by opening a cavity;

[0009] A mounting rod, wherein the mounting rod is rotatably connected to the upper end of the telescopic rod, and the lower end of the mounting rod is connected to the output end of the first motor;

[0010] An electromagnet, wherein the electromagnet is arranged at the lower end of the mounting rod, a permanent magnet matching the electromagnet is movably arranged inside the mounting rod, and a piston is arranged at the upper end of the permanent magnet;

[0011] A suction cup is arranged on the upper end of the mounting rod.

[0012] Preferably, the moving mechanism comprises:

[0013] A support frame, the support frame is arranged on the upper end surface of the base and between the annular winder and the telescopic rod, and a driving screw is horizontally arranged on the support frame;

[0014] A screw nut, wherein the screw nut is threadedly connected to a driving screw, and a roller group for driving the sandwich panel to move horizontally is arranged at the upper end of the screw nut;

[0015] The second motor is arranged at the lower end of a support frame on one side, the output end of the second motor is connected to a main bevel gear, and one end of the driving screw is provided with a secondary bevel gear meshing with the main bevel gear.

[0016] Preferably, slide bars are symmetrically arranged on both sides of the bottom plate of the roller group, and directional rods are arranged on both sides of the upper end surface of the base below the roller group, and the upper ends of the directional rods are slidably connected to the slide bars by providing directional grooves.

[0017] Preferably, sliding blocks are symmetrically arranged on both sides of the permanent magnet, and the sliding blocks are slidably connected to sliding grooves provided on the inner wall of the mounting rod.

[0018] Preferably, the suction cup is made of hard rubber material.

[0019] Preferably, the height of the bottom plate of the roller assembly should be higher than the height of the suction cup when the telescopic rod is in a retracted state.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The baler for the production line of fireproof rock wool sandwich panels is provided with a rotating mechanism, which includes a telescopic rod, a first motor, a mounting rod, an electromagnet, a permanent magnet, a piston and a suction cup, so that the rock wool sandwich panel can be rotated 90 degrees after the transverse winding is completed, and then longitudinally wound once, which makes up for the defect that the traditional technology can only wrap the plastic film transversely, ensures that each surface and side of the rock wool sandwich panel can be evenly and tightly protected, and meets the current customers' board transportation and long-term storage needs;

[0022] The baler for a fireproof rock wool sandwich panel production line is provided with a moving mechanism, which includes a support frame, a driving screw, a screw nut, a roller group, a second motor, a main bevel gear and a secondary bevel gear, so as to realize horizontal transportation and position adjustment of the rock wool sandwich panel during the packaging process, so that the suction cup can accurately adsorb the sandwich panel, and the horizontal movement of the roller group when the sandwich panel is longitudinally wound can better receive and send out the sandwich panel, and effectively prevent the problem that the sandwich panel cannot be smoothly transferred between the conveyor belt and the roller group due to insufficient width during the longitudinal winding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall front view of the utility model;

[0024] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 3 It is a side view schematic diagram of the internal structure of the utility model;

[0026] Figure 4 For the utility model Figure 2 A magnified schematic diagram at point A in FIG.

[0027] In the figure: 1. base; 2. annular winder; 3. moving mechanism; 301. support frame; 302. driving screw; 303. screw nut; 304. roller group; 3041. slide bar; 3042. directional rod; 305. second motor; 306. main bevel gear; 307. secondary bevel gear; 4. rotating mechanism; 401. telescopic rod; 402. first motor; 403. mounting rod; 404. electromagnet; 405. permanent magnet; 4051. slider; 406. piston; 407. suction cup; 5. conveyor belt. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and 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, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0032] See also Figure 1-4As shown, the utility model provides a technical solution for a baler for a fireproof rock wool sandwich panel production line: a baler for a fireproof rock wool sandwich panel production line, comprising a base 1, an annular winding device 2 is installed on the upper end surface of the base 1, a moving mechanism 3 is installed on the base 1 at one side of the annular winding device 2, a rotating mechanism 4 is installed on the upper end of the base 1 at one side of the moving mechanism 3, and a conveyor belt 5 is installed on the side away from the annular winding device 2 and the rotating mechanism 4;The rotating mechanism 4 includes a telescopic rod 401, a mounting rod 403, an electromagnet 404 and a suction cup 407. The telescopic rod 401 is fixedly mounted on the upper end surface of the base 1. The upper end of the telescopic rod 401 is provided with a first motor 402 by opening a cavity. The mounting rod 403 is rotatably connected to the upper end of the telescopic rod 401. The lower end of the mounting rod 403 is connected to the output end of the first motor 402. The electromagnet 404 is fixedly mounted on the lower end of the mounting rod 403. A permanent magnet 405 matching the electromagnet 404 is movably mounted inside the mounting rod 403. A piston 406 is mounted on the upper end of the permanent magnet 405. The suction cup 407 is mounted on the upper end of the mounting rod 403. When the rock wool sandwich panel needs to be packaged, the rock wool sandwich panel is firstly taken from the right side of the annular winding device 2. The conveyor belt 5 on the side is input, and the annular winding device 2 is started. The annular winding device 2 evenly winds the plastic film on the sandwich panel as the sandwich panel moves horizontally, completing the horizontal winding of the plastic film on the surface of the sandwich panel. The moving mechanism 3 on the left is responsible for receiving the rock wool sandwich panel wrapped with the plastic film to prevent it from falling, until the rock wool sandwich panel completes the horizontal winding of the plastic film. Then the position of the rock wool sandwich panel is adjusted by the moving mechanism 3 so that the center of the rock wool sandwich panel is located directly above the suction cup 407. Then the sandwich panel can be rotated. First, the external controller controls the electromagnet 404 to be energized. The electromagnet 404 generates a repulsive force on the permanent magnet 405, driving the permanent magnet 405 and the piston 406 to move to the uppermost end. Then the telescopic rod 401 is started so that The opening of the suction cup 407 fits with the lower end surface of the sandwich panel, and then the external controller controls to change the direction of the current on the electromagnet 404, so that the permanent magnet 405 is attracted by the electromagnet 404 and drives the piston 406 to slide downward, thereby creating a negative pressure at the upper end of the piston 406 so that the sandwich panel is effectively adsorbed and fixed, and then the telescopic rod 401 continues to rise to lift the sandwich panel and separate it from the moving mechanism 3 and the conveyor belt 5, and then the first motor 402 is started, and the first motor 402 drives the mounting rod 403 to rotate 90 degrees, thereby achieving the effect of rotating the sandwich panel 90 degrees. After the rotation is completed, the telescopic rod 401 contracts, so that the sandwich panel falls back onto the moving mechanism 3 and the conveyor belt 5, and then the external controller controls to change the direction of the current on the electromagnet 404 again. The electromagnet 404 generates a repulsive force on the permanent magnet 405, thereby driving the permanent magnet 405 and the piston 406 to move upward until the air pressure in the suction cup 407 returns to atmospheric pressure and loses the attraction to the sandwich panel. At this time, the rotation of the sandwich panel is completed, and the plastic film can be longitudinally wound on the sandwich panel through the moving mechanism 3 and the conveyor belt 5. The telescopic rod 401 is retracted to the bottom end. Through the rotating mechanism 4, the rock wool sandwich panel can be rotated 90 degrees after the transverse winding is completed, and then longitudinally wound again, which makes up for the defect that the traditional technology can only wrap the plastic film transversely, ensuring that each surface and side of the rock wool sandwich panel can be evenly and tightly protected, meeting the current customers' board transportation and long-term storage needs. ;

[0033] The moving mechanism 3 includes a support frame 301, a screw nut 303 and a second motor 305. The support frame 301 is installed on the upper end surface of the base 1 and is located between the annular winder 2 and the telescopic rod 401. A driving screw 302 is horizontally installed on the support frame 301. The screw nut 303 is threadedly connected to the driving screw 302. A roller group 304 for driving the sandwich panel to move horizontally is installed on the upper end of the screw nut 303. The roller group 304 is made of a base plate and a plurality of driving rollers installed on the base plate. The second motor 305 is installed at the lower end of the support frame 301 on one side. The output end of the second motor 305 is connected to a main bevel gear 306. A secondary bevel gear 307 meshing with the main bevel gear 306 is installed at one end of the driving screw 302. When horizontal movement is required When winding the rock wool sandwich panel, the roller group 304 is kept in the middle of the driving screw 302, and the driving roller on the roller group 304 and the conveyor belt 5 rotate synchronously to drive the horizontal movement of the rock wool sandwich panel. If it is necessary to wind the rock wool sandwich panel longitudinally, the second motor 305 is started first. The second motor 305 drives the driving screw 302 to rotate by driving the main bevel gear 306 and the auxiliary bevel gear 307. As the driving screw 302 rotates, the roller group 304 starts to move horizontally under the action of the screw nut 303 until it moves to the side close to the conveyor belt 5. Then, the driving roller on the roller group 304 is started again to accurately adjust the position of the sandwich panel, so that the suction cup 407 can be adsorbed to the center of the sandwich panel. At this time, the sandwich panel can be rotated. After the rotation is completed, the driving roller on the roller group 304 is started, so that the sandwich panel is completely placed above the roller group 304, and then the second motor 305 is started again. The second motor 305 drives the driving screw 302 to rotate so that the roller group 304 and the sandwich panel above are horizontally moved toward the conveyor belt 5 on the right. When the roller group 304 moves to the far right, the conveyor belt 5 on the right is started in the reverse direction until all the sandwich panels are moved onto the conveyor belt 5. Then the direction of the conveyor belt 5 is changed so that the sandwich panels pass through the annular winder 2 longitudinally. In this process, the sandwich panels are longitudinally wrapped with plastic film. The roller group 304 on the left side of the annular winder 2 can receive the packaged rock wool sandwich panels. When the rock wool sandwich panels are completely moved onto the roller group 304, the second motor is started again. 305 rotates the driving screw 302 to make the roller group 304 and the sandwich panel move horizontally synchronously until the roller group 304 moves to the conveyor belt 5 on the other side, and then the roller group 304 drives itself and cooperates with the action of the conveyor belt 5 to drive the sandwich panel to move horizontally to the conveyor belt 5, and the packaging operation of a rock wool sandwich panel is completed. Through the moving mechanism 3, the horizontal transportation and position adjustment of the rock wool sandwich panel in the packaging process are realized, which is convenient for the suction cup 407 to accurately adsorb the sandwich panel, and the horizontal movement of the roller group 304 when the sandwich panel is longitudinally wound can better receive and send out the sandwich panel, which effectively prevents the problem that the sandwich panel cannot be smoothly transferred from the conveyor belt 5 and the roller group 304 during the longitudinal winding process due to insufficient width.

[0034] Slide bars 3041 are symmetrically installed on both sides of the bottom plate of the roller group 304, and directional rods 3042 are fixedly installed on both sides of the upper end surface of the base 1 below the roller group 304. The upper ends of the directional rods 3042 are slidably connected to the slide bars 3041 through directional grooves. During the horizontal movement of the roller group 304, the slide bars 3041 synchronously slide on the upper ends of the directional rods 3042 to prevent the roller group 304 from losing balance or even following the rotation of the driving screw 302, thereby improving stability.

[0035] Slide blocks 4051 are symmetrically installed on both sides of the permanent magnet 405. The slide blocks 4051 are slidably connected to the slide grooves opened on the inner wall of the mounting rod 403. The restriction of the slide grooves can prevent the permanent magnet 405 and the piston 406 from moving upward excessively and separating from the mounting rod 403.

[0036] The suction cup 407 is made of a hard rubber material, which has sufficient wear resistance and ensures the sealing and adaptability of the suction cup 407 during adsorption.

[0037] The height of the bottom plate of the roller group 304 should be higher than the height of the suction cup 407 when the telescopic rod 401 is in the retracted state. After the suction cup 407 is retracted, it can be ensured that the roller group 304 can pass smoothly above it, which is convenient for the transportation of the sandwich panel.

[0038] The working principle of the utility model is as follows:

[0039] When the baler for a fireproof rock wool sandwich panel production line of the present embodiment is in use, the rock wool sandwich panel is first transversely wound, the rock wool sandwich panel is input from the conveyor belt 5 on the right side of the annular winder 2, and the annular winder 2 is started. The annular winder 2 evenly winds the plastic film on the sandwich panel as the sandwich panel moves horizontally, completing the transverse winding of the plastic film on the surface of the sandwich panel. The roller group 304 on the left is maintained in the middle of the driving screw 302, and is responsible for receiving the rock wool sandwich panel wrapped with the plastic film to prevent it from falling. The driving roller on the roller group 304 rotates synchronously with the conveyor belt 5 to drive the horizontal movement of the rock wool sandwich panel until the rock wool sandwich panel is completely transversely wound with the plastic film. If it is necessary to longitudinally wind the rock wool sandwich panel, first start the second motor 305. The second motor 305 drives the driving screw 302 to rotate by driving the main bevel gear 306 and the auxiliary bevel gear 307. As the driving screw 302 rotates, the roller group 304 starts to move horizontally under the action of the screw nut 303 until it moves to the side close to the conveyor belt 5. Then, the driving rollers on the roller group 304 are started again to accurately adjust the position of the sandwich panel so that the suction cup 407 can be adsorbed to the center of the sandwich panel. At this time, the sandwich panel can be rotated. First, the external controller controls the electromagnet 404 to be energized, and the electromagnet 404 generates a repulsive force on the permanent magnet 405, driving the permanent magnet 405 and the piston 406 to move to the uppermost end, and then the telescopic rod 401 is started, so that the opening of the suction cup 407 fits with the lower end surface of the sandwich panel, and then the external controller controls to change the direction of the current on the electromagnet 404, so that the permanent magnet 405 is attracted by the electromagnet 404 and drives the piston 406 to slide downward, thereby creating a negative pressure at the upper end of the piston 406 so that the sandwich panel is effectively adsorbed and fixed, and then the telescopic rod 401 continues to rise to lift the sandwich panel and separate it from the roller group 304 and the conveyor belt 5, and then the first motor 402 is started, and the first motor 402 drives the mounting rod 403 to rotate 90 degrees, thereby achieving the effect of rotating the sandwich panel as a whole by 90 degrees. After the rotation is completed, the telescopic rod 401 contracts, causing the sandwich panel to fall back to the roller group 304 and the conveyor belt 5. Belt 5, then the external controller controls to change the direction of the current on the electromagnet 404 again, so that the electromagnet 404 generates a repulsive force on the permanent magnet 405, thereby driving the permanent magnet 405 and the piston 406 to move upward, until the air pressure in the suction cup 407 returns to the atmospheric pressure and loses the attraction to the sandwich panel. At this time, the rotation of the sandwich panel is completed, and the telescopic rod 401 shrinks to the bottom end, and then the driving roller on the roller group 304 is started, so that the sandwich panel is completely placed above the roller group 304, and then the second motor 305 is started again, and the second motor 305 drives the driving screw 302 to rotate so that the roller group 304 and the sandwich panel above move horizontally toward the conveyor belt 5 on the right. When the roller group 304 moves to the far right, the conveyor belt 5 on the right is started in the reverse direction until all the sandwich panels move onto the conveyor belt 5, and then the direction of the conveyor belt 5 is changed so that the sandwich panels pass through the annular winder 2 longitudinally.During this process, the sandwich panel is longitudinally wrapped with plastic film, and the roller group 304 on the left side of the annular winder 2 can receive the packaged rock wool sandwich panel. When the rock wool sandwich panel is completely moved to the roller group 304, the second motor 305 is started again to rotate the driving screw 302 to make the roller group 304 and the sandwich panel move horizontally synchronously until the roller group 304 moves to the conveyor belt 5 on the other side, and then the roller group 304 itself drives the sandwich panel to move horizontally to the conveyor belt 5 through the action of the conveyor belt 5, and the packaging operation of a rock wool sandwich panel is completed; the utility model has a simple structure and a reasonable design. Through the rotating mechanism 4, the rock wool sandwich panel can be rotated 90 degrees after the lateral winding is completed The rotation of the roller group 304 and the longitudinal winding of the roller group 304 make up for the defect that the traditional technology can only wrap the plastic film transversely, ensuring that each surface and side of the rock wool sandwich panel can be evenly and tightly protected, meeting the current customer's board transportation and long-term storage needs. At the same time, the mobile mechanism 3 realizes the horizontal transportation and position adjustment of the rock wool sandwich panel during the packaging process, so that the suction cup 407 can accurately adsorb the sandwich panel, and the horizontal movement of the roller group 304 when the sandwich panel is longitudinally wound can better receive and send out the sandwich panel, effectively preventing the problem that the sandwich panel cannot be smoothly transferred from the conveyor belt 5 and the roller group 304 during the longitudinal winding process due to insufficient width.

[0040] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A packing machine for a fireproof rock wool sandwich panel production line, comprising a base (1), characterized in that: An annular winder (2) is arranged on the upper end surface of the base (1); a moving mechanism (3) is arranged on the base (1) at one side of the annular winder (2); a rotating mechanism (4) is arranged on the upper end of the base (1) at one side of the moving mechanism (3); and a conveyor belt (5) is arranged on the side of the annular winder (2) and the rotating mechanism (4) that are away from each other; The rotating mechanism (4) comprises: A telescopic rod (401), the telescopic rod (401) being arranged on the upper end surface of the base (1), and a first motor (402) being arranged at the upper end of the telescopic rod (401) by opening a cavity; A mounting rod (403), wherein the mounting rod (403) is rotatably connected to the upper end of the telescopic rod (401), and the lower end of the mounting rod (403) is connected to the output end of the first motor (402); An electromagnet (404), the electromagnet (404) being arranged at the lower end inside the mounting rod (403), a permanent magnet (405) matching the electromagnet (404) being movably arranged inside the mounting rod (403), and a piston (406) being arranged at the upper end of the permanent magnet (405); A suction cup (407) is arranged on the upper end of the mounting rod (403).

2. The baling machine for the fireproof rock wool sandwich panel production line according to claim 1, characterized in that: The moving mechanism (3) comprises: A support frame (301), the support frame (301) being arranged on the upper end surface of the base (1) and between the annular winder (2) and the telescopic rod (401), and a driving screw rod (302) being horizontally arranged on the support frame (301); A screw nut (303), the screw nut (303) being threadedly connected to the driving screw (302), and a roller group (304) for driving the sandwich panel to move horizontally is provided at the upper end of the screw nut (303); A second motor (305), the second motor (305) being arranged at the lower end of a side support frame (301), the output end of the second motor (305) being connected to a main bevel gear (306), and one end of the driving screw rod (302) being provided with a secondary bevel gear (307) meshing with the main bevel gear (306).

3. The baling machine for the fireproof rock wool sandwich panel production line according to claim 2 is characterized by: Slide bars (3041) are symmetrically arranged on both sides of the bottom plate of the roller group (304), and directional rods (3042) are arranged on both sides of the upper end surface of the base (1) below the roller group (304), and the upper ends of the directional rods (3042) are slidably connected to the slide bars (3041) by providing directional grooves.

4. The baling machine for a fireproof rock wool sandwich panel production line according to claim 1, characterized in that: Slide blocks (4051) are symmetrically arranged on both sides of the permanent magnet (405), and the slide blocks (4051) are slidably connected to slide grooves provided on the inner wall of the mounting rod (403).

5. The baling machine for the fireproof rock wool sandwich panel production line according to claim 1, characterized in that: The suction cup (407) is made of hard rubber material.

6. The baling machine for the fireproof rock wool sandwich panel production line according to claim 2, characterized in that: The height of the bottom plate of the roller group (304) should be higher than the height of the suction cup (407) when the telescopic rod (401) is in the retracted state.

Images