Paperboard hot pressing device

Abstract

The utility model provides a paperboard hot-pressing device which comprises a machine frame, a fixing frame is arranged on the machine frame, a hot-pressing mechanism is arranged on the lower portion of the fixing frame, a conveyor is arranged on the machine frame and located below the hot-pressing mechanism, pressing mechanisms are arranged on the two sides of the conveyor respectively, and each pressing mechanism comprises a movable platform arranged on the machine frame. Each moving platform is provided with a lifting platform, a mounting frame is arranged between the two lifting platforms, and a pressing plate is arranged on the lower portion of the mounting frame perpendicular to the conveying direction of the conveyor. In the hot pressing process and after hot pressing is completed, the pressing mechanism with the adjustable position and height can be used for pressing and fixing boards, and the situation that the processing temperature of corrugated boards output by the hot pressing laminating device is high, and the corrugated boards directly enter a cooling working section to be subjected to shock cooling, so that adhesive layers shrink instantly is avoided; and therefore, the product quality is improved, and the operation is more convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of hot pressing equipment, in particular to a paperboard hot pressing device. Background Art

[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated boxes, single-layer cardboard boxes, etc. As an indispensable part of modern logistics, packaging cartons bear the important responsibilities of containing, protecting products, and aesthetics. At present, corrugated cardboard is a commonly used material in the packaging industry, which is used to make packaging boxes for packaging items. In the production process of corrugated cardboard, a hot pressing laminating machine is required to hot press and laminate the corrugated cardboard. The processing temperature of the corrugated cardboard output by the current hot pressing laminating device is relatively high. Directly entering the cooling section for sudden cooling will cause the glue layer to shrink instantly, causing the two sides of the corrugated cardboard to easily warp up, affecting product quality, so it needs further improvement. Utility Model Content

[0003] In view of this, the utility model provides a cardboard hot pressing device, which can realize the pressing and fixing operation of the plate by means of a pressing mechanism with adjustable position and height during the hot pressing process and after the hot pressing is completed, so as to avoid the problem that the corrugated cardboard output by the hot pressing laminating device has a high processing temperature and directly enters the cooling section for sudden cooling, which will cause the glue layer to shrink instantly, resulting in the two sides of the corrugated cardboard to easily warp up, thereby improving product quality and making operation more convenient and efficient.

[0004] In order to solve the above technical problems, the utility model provides a cardboard hot pressing device, comprising a frame, a fixed frame is arranged on the frame, a hot pressing mechanism is arranged at the lower part of the fixed frame, a conveyor is arranged on the frame and below the hot pressing mechanism, and both sides of the conveyor are respectively provided with a clamping mechanism for fixing the plate material, and the clamping mechanism comprises a moving platform arranged on the frame and located on the left and right sides of the conveyor and parallel to the conveying direction of the conveyor, each moving platform is provided with a lifting platform, and a mounting frame is arranged between the two lifting platforms, and the mounting frame perpendicular to the conveying direction of the conveyor is provided. A pressing plate for pressing the sheet to be hot pressed is arranged at the lower part of the mounting frame, and the pressing plate is made of high temperature resistant rubber material. A passing groove for the sheet to pass through is opened on the mounting frame which is perpendicular to the conveying direction of the conveyor. The utility model can realize the pressing and fixing operation of the sheet by means of a pressing mechanism with adjustable position and height during and after the hot pressing process, thereby avoiding the problem that the corrugated cardboard output by the hot pressing laminating device has a high processing temperature and directly enters the cooling section for sudden cooling, which will cause the glue layer to shrink instantly, resulting in the problem that the two sides of the corrugated cardboard are easy to warp, thereby improving product quality and making the operation more convenient and efficient.

[0005] The fixing frame is L-shaped, and the lower part of the vertical part of the fixing frame is fixed together with the frame, and the lower part of the vertical part of the fixing frame is provided with a through groove for the plate to pass through. The hot pressing mechanism includes a hydraulic cylinder arranged at the lower part of the horizontal part of the fixing frame, and a heat insulation board is arranged at the lower part of the hydraulic cylinder, and a heating element is arranged at the lower part of the heat insulation board, and a heat conduction plate is arranged at the lower part of the heating element. The utility model can generate heat through the heating element, and then start the output rod of the hydraulic cylinder to extend to squeeze the heat conduction plate and the hot pressing plate, and the heat emitted by the heating element is conducted to the plate to be hot pressed through the heat conduction plate, and the hot pressing operation is performed on it, which is more convenient to operate.

[0006] The moving platform is a linear slide, and the linear slide is a screw motor linear slide in the prior art. The rotation of the output shaft of the motor of the linear slide can drive the screw to rotate together. In addition, the threaded connection between the slider of the linear slide and the screw and the guiding and limiting effect of the slide rail of the linear slide on the slider of the linear slide, the rotation of the screw can drive the slider of the linear slide to move along the slide rail of the linear slide with the lifting platform thereon and the mounting frame and clamping plate on the lifting platform, thereby facilitating the replacement and maintenance of the clamping plate at the bottom of the mounting frame.

[0007] The lifting platform is a telescopic push rod, which is an electric telescopic push rod or a hydraulic telescopic push rod. The fixed end of the telescopic push rod is arranged on the slider of the linear slide, and the output rod end of the telescopic push rod is fixed together with the lower part of the mounting frame. The utility model can push the mounting frame and the clamping plate at the lower part of the mounting frame to adjust the height of the operation by extending and retracting the output rod of the lifting platform. By retracting the output rod of the lifting platform, it is convenient to pull the mounting frame and the clamping plate at the lower part of the mounting frame downward to fix and clamp the workpiece to be hot pressed on the conveyor. By extending the output rod of the lifting platform, it is convenient to push the mounting frame and the clamping plate at the lower part of the mounting frame upward to separate from the workpiece completed by hot pressing, and then start the conveyor to move the hot pressed plate out of the outside of the frame, which is more convenient, and the lifting platform can realize the hot pressing operation of plates of different thicknesses by adjusting the height of the clamping plate, which is more practical.

[0008] In summary, compared with the prior art, the present application includes at least one of the following beneficial technical effects:

[0009] 1. The utility model can realize the pressing and fixing operation of the plate by means of a pressing mechanism with adjustable position and height during and after the hot pressing process, so as to avoid the problem that the corrugated board output by the hot pressing bonding device has a high processing temperature and directly enters the cooling section for sudden cooling, which will cause the glue layer to shrink instantly, resulting in the problem that the two sides of the corrugated board are easy to warp, thereby improving product quality and making the operation more convenient and efficient.

[0010] 2. The utility model can generate heat through the heating element, and then start the output rod of the hydraulic cylinder to extend to squeeze the heat-conducting plate and the hot-pressing plate. The heat emitted by the heating element is conducted to the plate to be hot-pressed through the heat-conducting plate, and the hot-pressing operation is performed on it, which is more convenient to operate.

[0011] 3. The rotation of the output shaft of the motor of the linear slide can drive the lead screw to rotate together. In addition, the threaded connection between the slider of the linear slide and the lead screw and the guiding and limiting effect of the slide rail of the linear slide on the slider of the linear slide can drive the slider of the linear slide to move along the slide rail of the linear slide with the lifting platform on it and the mounting frame and clamping plate on the lifting platform, so as to facilitate the replacement and maintenance of the clamping plate at the bottom of the mounting frame.

[0012] 4. By retracting the output rod of the lifting platform, it is convenient to pull the mounting frame and the clamping plate at the bottom of the mounting frame downward to fix and clamp the workpiece to be hot-pressed on the conveyor. By extending the output rod of the lifting platform, it is convenient to push the mounting frame and the clamping plate at the bottom of the mounting frame upward to separate the workpiece from the hot-pressed workpiece, and then start the conveyor to move the hot-pressed plate out of the outside of the frame, which is more convenient. The lifting platform can adjust the height of the clamping plate to facilitate hot pressing of plates of different thicknesses, which is more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of the paperboard hot pressing device of the utility model;

[0014] Figure 2 It is an enlarged view of the structure at A in the utility model;

[0015] Figure 3 It is a front view of the paperboard hot pressing device of the utility model.

[0016] Explanation of the reference numerals: 100, frame; 200, fixed frame; 300, hot pressing mechanism; 301, hydraulic cylinder; 302, heat insulation board; 303, heating element; 304, heat conducting plate; 400, clamping mechanism; 401, moving platform; 402, lifting platform; 403, mounting frame; 404, clamping plate. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the embodiment of the utility model clearer, the following will be combined with the appended drawings of the embodiment of the utility model. Figure 1-3 , the technical scheme of the embodiment of the utility model is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0018] like Figure 1-3 As shown: This embodiment provides a cardboard hot pressing device, including a frame 100, a fixed frame 200 is arranged on the frame 100, a hot pressing mechanism 300 is arranged at the lower part of the fixed frame 200, a conveyor is arranged on the frame 100 and below the hot pressing mechanism 300, and both sides of the conveyor are respectively provided with a clamping mechanism 400 for fixing the plate with adjustable position and height, and the clamping mechanism 400 includes a movable platform 401 arranged on the frame 100 and located on the left and right sides of the conveyor and parallel to the conveying direction of the conveyor, each movable platform 401 is provided with a lifting platform 402, and a mounting frame 403 is arranged between the two lifting platforms 402, which is perpendicular to the conveying direction of the conveyor. A pressing plate 404 for pressing the sheet to be hot pressed is arranged at the lower part of the mounting frame 403. The pressing plate 404 is made of high temperature resistant rubber material. A through slot for the sheet to pass through is provided on the mounting frame 403 which is perpendicular to the conveying direction of the conveyor. The length of the through slot is greater than the width of the sheet to be hot pressed. The utility model can realize the pressing and fixing operation of the sheet by means of the position and height adjustable pressing mechanism 400 during and after the hot pressing process, thereby avoiding the high processing temperature of the corrugated cardboard output by the hot pressing laminating device, and the problem that the glue layer will shrink instantly due to the sudden cooling directly entering the cooling section, resulting in the problem that the two sides of the corrugated cardboard are easy to warp, thereby improving product quality and making the operation more convenient and efficient.

[0019] According to one embodiment of the utility model, Figure 1-3 As shown, the fixing frame 200 is L-shaped, and the lower part of the vertical part of the fixing frame 200 is fixed together with the frame 100. The lower part of the vertical part of the fixing frame 200 is provided with a through groove for the plate to pass through. The hot pressing mechanism 300 includes a hydraulic cylinder 301 arranged at the lower part of the horizontal part of the fixing frame 200, and a heat insulation board 302 is arranged at the lower part of the hydraulic cylinder 301. A heating element 303 is arranged at the lower part of the heat insulation board 302, and a heat conduction plate 304 is arranged at the lower part of the heating element 303. The utility model can generate heat through the heating element 303, and then start the output rod of the hydraulic cylinder 301 to extend to squeeze the heat conduction plate 304 and the hot pressing plate. The heat emitted by the heating element 303 is conducted to the plate to be hot pressed through the heat conduction plate 304, and the hot pressing operation is performed on it, which is more convenient to operate.

[0020] According to another embodiment of the present invention, Figure 1 and Figure 2As shown, the movable platform 401 is a linear slide, and the linear slide is a screw motor linear slide in the prior art. The rotation of the output shaft of the motor of the linear slide can drive the screw rod to rotate together. In addition, the threaded connection between the slider of the linear slide and the screw rod and the guiding and limiting effect of the slide rail of the linear slide on the slider of the linear slide, the rotation of the screw rod can drive the slider of the linear slide to move with the lifting platform 402 thereon and the mounting frame 403 and the clamping plate 404 on the lifting platform 402 along the slide rail of the linear slide, so as to facilitate the replacement and maintenance of the clamping plate 404 at the bottom of the mounting frame 403.

[0021] According to another embodiment of the present invention, Figure 1 and Figure 3 As shown, the lifting platform 402 is a telescopic push rod, which is an electric telescopic rod or a hydraulic telescopic rod. The fixed end of the telescopic push rod is set on the slider of the linear slide, and the output rod end of the telescopic push rod is fixed together with the lower part of the mounting frame 403. The utility model can push the mounting frame 403 and the clamping plate 404 at the lower part of the mounting frame 403 to adjust the height of the operation by extending and retracting the output rod of the lifting platform 402. By retracting the output rod of the lifting platform 402, it is convenient to pull the mounting frame 403 and the mounting frame 403. The clamping plate 404 at the bottom of the frame 403 is used to fix and clamp the workpiece to be hot-pressed on the conveyor downward. By extending the output rod of the lifting platform 402, it is convenient to push the mounting frame 403 and the clamping plate 404 at the bottom of the mounting frame 403 to move upward to the workpiece that is separated from the hot-pressed workpiece. Then, the conveyor is started to move the hot-pressed plate out of the outside of the frame 100, which is more convenient. The lifting platform 402 can adjust the height of the clamping plate 404 to facilitate hot pressing of plates of different thicknesses, which is more practical.

[0022] The use of the utility model:

[0023] First of all, it should be made clear that the hot pressing device involved in the utility model is mainly used for hot pressing operations on various types of plates. The utility model takes the hot pressing of cardboard as an example to explain its method of use in detail. When the cardboard needs to be hot pressed, first start the output rod of the lifting platform 402 to extend it to a position where the height from the conveyor belt is greater than the thickness of the plate (the purpose of this is to facilitate the conveyor to smoothly convey the plate to the bottom of the hot press), then start the conveyor to convey the cardboard to be hot pressed to the bottom of the heat conducting plate 304 on the hot pressing mechanism 300, start the output rod of the lifting platform 402 to retract it to bring the pressing plate 404 downward to press the edge of the cardboard to be hot pressed, and through the retraction of the output rod of the lifting platform 402, it is convenient to pull the mounting frame 403 and the pressing plate 404 at the bottom of the mounting frame 403 downward to fix and press the workpiece to be hot pressed on the conveyor, and then start the heating element 303 to heat up. After the heating element 303 has been heated for a period of time, start the output of the hydraulic cylinder 301. The output rod is extended, and the output rod of the hydraulic cylinder 301 is extended to squeeze the heat conducting plate 304 and the hot pressing plate. The heat emitted by the heating element 303 is conducted to the plate to be hot pressed through the heat conducting plate 304, and hot pressing is performed on it. After the hot pressing is completed, the output rod of the lifting platform 402 is started to extend. The extension of the output rod of the lifting platform 402 facilitates the pushing of the mounting frame 403 and the pressing plate 404 at the bottom of the mounting frame 403 to move upward to the workpiece that is separated from the hot pressing. Then the conveyor is started to move the hot pressed plate out of the outside of the frame 100, which is more convenient. The utility model can use the position and height adjustable pressing mechanism 400 during the hot pressing process and after the hot pressing is completed to realize the pressing and fixing operation of the plate, so as to avoid the high processing temperature of the corrugated board output by the hot pressing bonding device. The problem that the glue layer is instantly contracted and the two sides of the corrugated board are easily warped due to the sudden cooling directly entering the cooling section is improved, and the operation is more convenient and efficient.

[0024] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0025] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A paperboard hot pressing device, comprising a frame (100), a fixing frame (200) being arranged on the frame (100), a hot pressing mechanism (300) being arranged at the lower part of the fixing frame (200), characterized in that: A conveyor is arranged on the frame (100) and below the hot pressing mechanism (300); and clamping mechanisms (400) for fixing the plate are arranged on both sides of the conveyor, respectively, and the clamping mechanisms (400) are adjustable in position and height. The clamping mechanisms (400) include movable platforms (401) arranged on the frame (100) and located on the left and right sides of the conveyor and parallel to the conveying direction of the conveyor; a lifting platform (402) is arranged on each of the movable platforms (401); a mounting frame (403) is arranged between the two lifting platforms (402); and a clamping plate (404) for clamping the plate to be hot pressed is arranged at the bottom of the mounting frame (403) which is perpendicular to the conveying direction of the conveyor.

2. The paperboard hot pressing device according to claim 1, characterized in that: The fixing frame (200) is L-shaped, and the lower part of the vertical part of the fixing frame (200) is fixedly mounted together with the frame (100), and the lower part of the vertical part of the fixing frame (200) is provided with a through slot for the plate to pass through, and the hot pressing mechanism (300) comprises a hydraulic cylinder (301) arranged at the lower part of the horizontal part of the fixing frame (200), a heat insulation board (302) is arranged at the lower part of the hydraulic cylinder (301), a heating element (303) is arranged at the lower part of the heat insulation board (302), and a heat conduction board (304) is arranged at the lower part of the heating element (303).

3. The paperboard hot pressing device according to claim 2, characterized in that: The moving platform (401) is a linear slide.

4. The paperboard hot pressing device according to claim 3, characterized in that: The lifting platform (402) is a telescopic push rod, the fixed end of which is arranged on a slider of a linear slide, and the output rod end of the telescopic push rod is fixedly arranged together with the lower part of the mounting frame (403).

5. The paperboard hot pressing device according to claim 2, characterized in that: The mounting frame (403) which is perpendicular to the conveying direction of the conveyor is provided with a passage slot for the plate to pass through.

6. The paperboard hot pressing device according to claim 5, characterized in that: The pressing plate (404) is made of high temperature resistant rubber material.

Images