Extrusion type carton film laminating machine

Abstract

The utility model relates to the technical field of carton production, and discloses an extrusion type carton film laminating machine which comprises a machine frame and a frame structure used for supporting, and the top face of the machine frame is rotationally connected with a first extrusion roller and a second extrusion roller. The rolling structure comprises a cross beam, a sliding plate, a pressing block and a deformation plate, the cross beam is fixedly installed on the top of the rack, the sliding plate is movably arranged below the cross beam, the pressing block is detachably connected with the sliding plate, the deformation plate is fixedly connected with the sliding plate, a notch is formed in one side of the pressing block, and an air pipe is fixedly installed on the end face of the pressing block; high-speed airflow is discharged from a notch in the front wall of the pressing block, then air on one side of the paperboard flows, a film can be pressed on the paperboard by means of atmospheric pressure, the bottom of the pressing block is attached to the film in cooperation with downward pressing of the deformation plate on the pressing block, the film laminating effect is better, the film is pressed by means of air, bubbles below the film can be effectively discharged, and the film laminating efficiency is improved. And the film covering uniformity is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of carton production, in particular to an extrusion type carton film laminating machine. Background Art

[0002] A carton film laminating machine attaches a layer of film to the outer surface of an existing ordinary carton board to make the carton waterproof.

[0003] The prior art with the publication number CN114536735B discloses an extrusion type carton film laminating machine for avoiding bubbles, including a film laminating machine body, an input mechanism, a film laminating mechanism, a film laminating roller and a tension roller. An input mechanism is arranged at the upper part of one side of the film laminating machine body. A driven roller horizontally arranged is arranged above the inner side of the input mechanism. A rotatable driving roller is embedded in the upper end surface of the film laminating machine body below the driven roller. A tension roller for unfolding the film is arranged below the film laminating roller. A scraping and defoaming mechanism for pressing and spreading the film is arranged at the rear side of the film laminating mechanism. A pressing mechanism is arranged at the rear side of the scraping and defoaming mechanism. Two horizontal driven rollers are arranged inside the output mechanism.

[0004] In the prior art, it is proposed to realize film laminating by squeezing the pressing plate to move down through a screw rod, and using the pressing plate to press the film and the cardboard to discharge air bubbles. During the conveying process of the cardboard, air is exhausted, and the plate is in direct contact with the cardboard. For the film at the position where there are air bubbles, simply relying on the extrusion of the plate has limited effect on the evacuation of air bubbles and the flattening of the film. If the extrusion force is too large, it is easy to cause damage and slippage of the film, and if the force is too small, it is difficult to ensure the film laminating effect.

[0005] Therefore, we propose an extrusion type carton film laminating machine. Content of the Utility Model

[0006] The utility model mainly solves the technical problem that the effect of squeezing and exhausting air by the plate contacting the film is limited, and provides an extrusion type carton film laminating machine.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme. An extrusion type carton film laminating machine includes:

[0008] A frame for supporting, the top surface of the frame is rotatably connected with a first extrusion roller and a second extrusion roller for extruding the carton and the film, and a winding roller is also rotatably installed above the frame;

[0009] A rolling structure is provided between the second extrusion roller and the winding roller for the cardboard after film coating. The rolling structure includes a cross beam, a sliding plate, a pressing block, and a deformation plate. The cross beam is fixedly installed on the top of the frame. The sliding plate is movably arranged below the cross beam. The pressing block is detachably connected to the sliding plate. The deformation plate is fixedly connected to the sliding plate. The deformation plate can push the pressing block to deform. A notch is formed on one side of the pressing block. An air pipe is fixedly installed on the end face of the pressing block, and the air pipe is connected to a gas source.

[0010] As a preferred embodiment of the present invention, the rolling structure further includes a contact plate. The contact plate is fixedly connected to the deformation plate. The contact plate abuts against the top surface of the pressing block and pushes the pressing block to bend towards the top surface of the frame.

[0011] As a preferred embodiment of the present invention, the deformation plate forms an arc-shaped rod structure. One end face of the deformation plate is fixedly connected to the top surface of the sliding plate. The deformation plate bends and extends towards the top surface of the pressing block. The other end face of the deformation plate is fixedly connected to the top surface of the contact plate. The contact plate forms a rectangular rod structure.

[0012] As a preferred embodiment of the present invention, the rolling structure further includes an adjusting screw. The adjusting screw is rotatably connected to the cross beam and threadedly connected to the sliding plate. The contact plate can push the sliding plate to vertically rise and fall.

[0013] As a preferred embodiment of the present invention, the cross beam forms a U-shaped arch structure in cross section. The sliding plate is slidably connected to the inner wall surface of the cross beam. A threaded hole is formed on the top surface of the sliding plate. The adjusting screw is connected to the threaded hole.

[0014] As a preferred embodiment of the present invention, the pressing block forms a rectangular plate structure. The pressing block extends obliquely towards the top surface of the frame. A notch is formed on the front wall of the pressing block. The notch is rectangular. The air pipe penetrates through the right side wall of the pressing block and communicates with the notch.

[0015] As a preferred embodiment of the present invention, the rolling structure further includes a protrusion and a plugging channel. The protrusion is fixedly connected to the pressing block. A plugging channel is formed on the wall surface of the sliding plate. The protrusion is plugged into the plugging channel.

[0016] The present invention provides an extrusion type carton film coating machine, which has the following beneficial effects:

[0017] 1. The extrusion type carton film laminating machine sends air into the chamber of the pressing block through an air pipe, and the high-speed air flow discharges from the notch on the front wall of the pressing block, thereby enabling the air flow on one side of the cardboard. Then, the gas pressure at the gap between the cardboard and the film is relatively lower than the air pressure in front of the cardboard. With the help of atmospheric pressure, the film can be tightly pressed on the cardboard. Combined with the downward pressure of the deformation plate on the pressing block, the bottom of the pressing block fits the film, and the film laminating effect is better. By pressing the film tightly with air, the air bubbles under the film can be effectively discharged, improving the uniformity of film lamination. The deformation plate made of spring steel provides a downward pressure for the pressing block, ensuring the pressing effect of the pressing block on the film. The contact plate is of the same length as [the relevant part], making the downward pressure received more uniform. Secondly, it can automatically compensate for the gap generated by the wear of the pressing block, improving the service life and stability.

[0018] 2. For the extrusion type carton film laminating machine, by rotating the handle, the adjusting screw rotates, and the adjusting screw toggles the sliding plate to lift and lower inside the abdomen of the cross beam, thereby adjusting the distance between the pressing block and the top surface of the frame. The pressing block is made of rubber, so that the pressing force of the pressing block on the cardboard and the film can be adjusted.

[0019] 3. For the extrusion type carton film laminating machine, by inserting the protrusion into the insertion channel, the protrusion is integrally formed with the pressing block, which is convenient for disassembling and assembling the pressing block and simplifies the disassembly and assembly of later maintenance. Description of the Drawings

[0020] Figure 1 is one of the overall three-dimensional views of the present utility model;

[0021] Figure 2 is the second of the overall three-dimensional views of the present utility model;

[0022] Figure 3 is the three-dimensional view of the rolling structure of the present utility model;

[0023] Figure 4 is the three-dimensional view of the pressing block of the present utility model;

[0024] Figure 5 is the three-dimensional view of the sliding plate installing the deformation plate of the present utility model.

[0025] Legend Explanation: 10, frame; 11, first extrusion roller; 12, second extrusion roller; 13, winding roller; 20, cross beam; 21, sliding plate; 22, pressing block; 23, deformation plate; 24, contact plate; 25, adjusting screw; 30, protrusion; 31, insertion channel. Detailed Embodiment

[0026] An extrusion type carton film laminating machine, as Figure 1 and Figure 2 shown, includes:

[0027] The frame 10, a framework structure for support, has a first extrusion roller 11 and a second extrusion roller 12 rotatably connected to the top surface of the frame 10 for extruding cartons and films. Above the frame 10, there is also a winding roller 13 rotatably installed. Specifically, a number of motors are fixedly installed on the side wall of the frame 10, and the first extrusion roller 11, the winding roller 13, and the winding roller 13 are fixedly connected to the output shafts of the corresponding motors. The cardboard enters from the left side of the frame 10 and is extruded and conveyed under the first extrusion roller 11, while the film released and wound by the winding roller 13 covers the conveyed cardboard and is extruded by the second extrusion roller 12 to form a film coating. The motors need to be connected to the power supply through control switches, which is a known prior art and will not be elaborated here;

[0028] Such as Figure 2 , Figure 3 , Figure 4 And Figure 5As shown, a rolling structure is provided between the second extrusion roller 12 and the winding roller 13 for the cardboard after film covering. The rolling structure includes a cross beam 20, a sliding plate 21, a pressing block 22 and a deformation plate 23. The cross beam 20 is fixedly installed on the top of the frame 10. The sliding plate 21 is movably arranged below the cross beam 20. The pressing block 22 is detachably connected to the sliding plate 21. The deformation plate 23 is fixedly connected to the sliding plate 21. The deformation plate 23 can push and deform the pressing block 22. A notch is formed on one side of the pressing block 22. An air pipe is fixedly installed on the end face of the pressing block 22. The air pipe is connected to an air source. The rolling structure further includes a contact plate 24. The contact plate 24 is fixedly connected to the deformation plate 23. The contact plate 24 abuts against the top surface of the pressing block 22 and pushes the pressing block 22 to bend towards the top surface of the frame 10. The deformation plate 23 forms an arc-shaped rod structure. One end face of the deformation plate 23 is fixedly connected to the top surface of the sliding plate 21. The deformation plate 23 bends and extends towards the top surface of the pressing block 22. The other end face of the deformation plate 23 is fixedly connected to the top surface of the contact plate 24. The contact plate 24 forms a rectangular rod structure. The pressing block 22 forms a rectangular plate structure. The pressing block 22 extends obliquely towards the top surface of the frame 10. A notch is formed on the front wall of the pressing block 22. The notch is rectangular. The air pipe penetrates through the right side wall of the pressing block 22 and communicates with the notch. In this solution, the air source can be an air storage tank or an air compressor. Air is sent into the chamber of the pressing block 22 through the air pipe. The high-speed air flow is discharged from the notch on the front wall of the pressing block 22. As a result, the air on one side of the cardboard flows. Then, the gas pressure at the gap between the cardboard and the film is relatively lower than the air pressure in front of the cardboard. With the help of the atmospheric pressure, the film can be pressed tightly on the cardboard. Combined with the downward pressure of the deformation plate 23 on the pressing block 22, the bottom of the pressing block 22 can be made to fit the film, and the film covering effect is better. By pressing the film with air, the bubbles below the film can be effectively discharged, improving the uniformity of film covering. The deformation plate 23 made of spring steel material provides a downward pressure for the pressing block 22, ensuring the pressing effect of the pressing block 22 on the film. The contact plate 24 is of the same length as 22, making the downward pressure received by 22 more uniform. Secondly, the gap generated by the wear of the pressing block 22 can be automatically compensated, improving the service life and stability.

[0029] As Figure 3 shown, the rolling structure further includes an adjusting screw 25. The adjusting screw 25 is rotatably connected to the cross beam 20 and threadedly connected to the sliding plate 21. The contact plate 24 can push the sliding plate 21 to move vertically up and down. The cross beam 20 forms a U-shaped arch structure in cross section. The sliding plate 21 is slidably connected to the inner wall surface of the cross beam 20. A threaded hole is formed on the top surface of the sliding plate 21. The adjusting screw 25 is connected to the threaded hole. A handle is fixedly installed at the upper end of the adjusting screw 25. By rotating the handle, the adjusting screw 25 rotates. The adjusting screw 25 moves the sliding plate 21 to rise and fall in the abdomen of the cross beam 20, thereby adjusting the distance between the pressing block 22 and the top surface of the frame 10. The pressing block 22 is made of rubber material, so that the pressing force of the pressing block 22 on the cardboard and the film can be adjusted.

[0030] AsFigure 4 and Figure 5 As shown, the rolling structure also includes a protrusion 30 and a plug-in channel 31. The protrusion 30 is fixedly connected to the pressure block 22. The plug-in channel 31 is provided on the wall of the sliding plate 21. The protrusion 30 is plugged into the plug-in channel 31. Specifically, the protrusion 30 is a plate with a dovetail-shaped cross-section. The plug-in channel 31 and the protrusion 30 cooperate with each other. By inserting the protrusion 30 into the plug-in channel 31, the protrusion 30 and the pressure block 22 are integrally formed, thereby facilitating the disassembly and assembly of the pressure block 22 and simplifying the disassembly and assembly for later maintenance.

[0031] The working principle of the utility model is as follows: the cardboard enters the lower part of the first squeezing roller 11 from the left side of the frame 10 and is squeezed and conveyed by the first squeezing roller 11, and the rolled film is released by the winding roller 13, the film covers the conveyed cardboard, and is squeezed by the second squeezing roller 12 to form a coating, and the installation of the pressing block 22 is realized by inserting the protrusion 30 into the plug-in channel 31, and the upper end of the adjusting screw 25 is fixedly installed with a handle, and the adjusting screw 25 is rotated by turning the handle, and the adjusting screw 25 moves the sliding plate 21 up and down in the belly of the crossbeam 20, thereby adjusting the pressing block 22 and the top of the frame 10 The distance between the surfaces is small, the pressing block 22 is made of rubber, and the squeezing force of the pressing block 22 on the cardboard and the film can be adjusted. The air source can be an air tank or an air compressor, and air is sent to the chamber of the pressing block 22 through an air pipe. The high-speed airflow is discharged from the notch on the front wall of the pressing block 22, so that the air on one side of the cardboard flows. Then, the gas pressure at the gap between the cardboard and the film is lower than the air pressure in front of the cardboard. With the help of atmospheric pressure, the film can be pressed tightly on the cardboard. With the help of the downward pressure of the pressing block 22 by the deformation plate 23, the bottom of the pressing block 22 is in contact with the film, and the film and the cardboard are more closely attached.

[0032] The above shows and describes the basic principle and main features of the utility model and the 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 for explaining the principle of 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 claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An extrusion type carton film laminating machine, characterized in that, Including: A frame (10), a frame structure for support, on the top surface of the frame (10), a first extrusion roller (11) and a second extrusion roller (12) for extruding cartons and films are rotatably connected, and a winding roller (13) is also rotatably installed above the frame (10); A rolling structure, arranged between the second extrusion roller (12) and the winding roller (13) for the cardboard after film covering, the rolling structure includes a cross beam (20), a sliding plate (21), a pressing block (22) and a deformation plate (23), the cross beam (20) is fixedly installed on the top of the frame (10), the sliding plate (21) is movably arranged below the cross beam (20), the pressing block (22) is detachably connected to the sliding plate (21), the deformation plate (23) is fixedly connected to the sliding plate (21), the deformation plate (23) can push the pressing block (22) to deform, a notch is opened on one side of the pressing block (22), and an air pipe is fixedly installed on the end face of the pressing block (22), and the air pipe is connected to an air source.

2. The extrusion type carton film laminating machine according to claim 1, wherein: The rolling structure further includes a contact plate (24), the contact plate (24) is fixedly connected to the deformation plate (23), and the contact plate (24) abuts against the top surface of the pressing block (22) and pushes the pressing block (22) to bend towards the top surface of the frame (10).

3. The extrusion type carton film laminating machine according to claim 2, wherein: The deformation plate (23) forms an arc-shaped rod structure, one end face of the deformation plate (23) is fixedly connected to the top surface of the sliding plate (21), the deformation plate (23) bends and extends towards the top surface of the pressing block (22), and the other end face of the deformation plate (23) is fixedly connected to the top surface of the contact plate (24), and the contact plate (24) forms a rectangular rod structure.

4. The extrusion type carton film laminating machine according to claim 1, wherein: The rolling structure further includes an adjusting screw (25), the adjusting screw (25) is rotatably connected to the cross beam (20) and is threadedly connected to the sliding plate (21), and the contact plate (24) can push the sliding plate (21) to move vertically up and down.

5. The extrusion type carton film laminating machine according to claim 4, wherein: The cross beam (20) forms a U-shaped arch structure in cross section, the sliding plate (21) is slidably connected to the inner wall surface of the cross beam (20), a threaded hole is opened on the top surface of the sliding plate (21), and the adjusting screw (25) is connected to the threaded hole.

6. The extrusion type carton film laminating machine according to claim 1, characterized in that: The pressing block (22) forms a rectangular plate structure, the pressing block (22) extends obliquely towards the top surface of the frame (10), a notch is opened on the front wall of the pressing block (22), the notch is rectangular, and the air pipe penetrates through the right side wall of the pressing block (22) and communicates with the notch.

7. The extrusion carton film laminating machine according to claim 1, wherein: The rolling structure further includes a protrusion (30) and a plugging channel (31), the protrusion (30) is fixedly connected to the pressing block (22), a plugging channel (31) is opened on the wall surface of the sliding plate (21), and the protrusion (30) is plugged into the plugging channel (31).

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