A side leakage prevention folding device with cleaning function

Abstract

This invention relates to the field of sanitary equipment technology, and in particular to a leak-proof folding device with a cleaning function. The device includes a frame, a front folding seat mounted on the frame, a rear folding seat spaced behind the front folding seat, a guide plate on the top surface of the front and rear folding seats, a folding plate on one side of the guide plate, an adhesive applicator, and a pressure roller. The folding plate is inclined from one side to the other and from top to bottom. The guide plate is supported and fixed by the folding seat. The guide plate is relatively long, but the support surface of the folding seat supporting the guide plate is large, thus preventing the guide plate from wobbling due to the long guide distance. This solves the problem of insufficient stability when folding materials due to a short guide plate.

Description

Technical Field

[0001] This invention relates to the field of sanitary equipment technology, and in particular to a leak-proof folding device with a cleaning function. Background Technology

[0002] Currently, Chinese patent application number CN201820177504.4 discloses a non-woven fabric folding device for diapers, including a mounting bracket plate, a non-woven fabric inlet pulley, a non-woven fabric conveying platform, two folding mechanisms, a conveying platform fixing frame, and a non-woven fabric outlet pulley. The non-woven fabric inlet pulley, the conveying platform fixing frame, and the non-woven fabric outlet pulley are all mounted on the mounting bracket plate. The non-woven fabric conveying platform is mounted on the conveying platform fixing frame, which is located at the bottom of the non-woven fabric conveying platform. One folding mechanism is located on one side of the non-woven fabric conveying platform and protrudes from the top surface of the non-woven fabric conveying platform. The other folding mechanism is located on the other side of the non-woven fabric conveying platform and protrudes from the top surface of the non-woven fabric conveying platform, disclosing an existing folding structure.

[0003] like Figure 1 The diagram shows a common leak-proof folding process used in existing hygiene product (sanitary napkins, diapers) equipment. The leak-proof elastic band is guided into the leak-proof folding device by guide rollers; simultaneously, the leak-proof non-woven fabric on both sides enters the guide plate section of the leak-proof folding device via guide rollers, and is guided by the guide plate into the folding plate for folding. Adhesive is applied to the elastic band above the folding device, thus completing the folding and adhesive wrapping of the elastic band by the leak-proof non-woven fabric. After wrapping, the elastic band is pressed together by pressure rollers to enhance the wrapping strength. Figure 2 and Figure 3 As shown, the main components of an existing anti-leakage folding device include a folding seat 1' spaced apart at the front and rear, a guide plate 2' for guiding the input of non-woven fabric on both sides, and a folding plate 3' for folding the input non-woven fabric on both sides.

[0004] Disadvantages of existing anti-leakage folding devices: From Figure 1 , Figure 2 and Figure 3 As can be seen from the entire process of folding the material to prevent side leakage, the material guide plate is supported and fixed by the folding seat. The supporting surface of the folding seat supporting the guide plate is small, so the length of the guide plate is relatively short. If it is too long, it will cause the guide plate to shake, resulting in unstable guidance and unstable folding. However, the guide plate is too short, which also causes the folding material to be not guided enough and to be rushed into folding, thus resulting in unstable folding.

[0005] The folding plate is also fixed by the folding seat. The gap between the folding plate and the folding seat is small, and the folding plate and the folding seat are always connected throughout the entire folding process of the material. Above the folding device, the rubber is glued, which can easily cause glue to stick during the folding process, thus causing the non-woven fabric to be unstable during folding. Summary of the Invention

[0006] Therefore, in response to the above problems, this invention proposes a leak-proof folding device with a cleaning function, which solves the technical problems of short guide plates, unstable folding of folding materials, and the tendency of rubber to adhere to the folding plate and folding seat during the folding process, resulting in unstable folding of non-woven fabric.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof folding device with a cleaning function, comprising a frame and a front folding seat disposed on the frame, a rear folding seat disposed at intervals behind the front folding seat, a guide plate disposed on the top surface of the front folding seat and the rear folding seat, a folding plate disposed on one side of the guide plate, an adhesive applicator and a pressure roller, wherein the folding plate is inclined from one side of the lateral direction to the other and from top to bottom, and the folding plate is bent from one side of the lateral direction to the other, and the folding plate is provided with a folding part for folding the folding material at one end opposite to the guide plate.

[0008] Furthermore, it also includes an adjustment mechanism for adjusting the distance between the front folding seat and the rear folding seat. The adjustment mechanism includes an adjustment frame, a sliding rod slidably connected to the front folding seat and the rear folding seat, a rear adjustment rod passing through the front folding seat and threadedly connected to the rear folding seat, and a front adjustment rod. The rear adjustment rod is rotatably connected to the adjustment frame, the front adjustment rod is threadedly connected to the front folding seat, and the front adjustment rod is rotatably connected to the adjustment frame.

[0009] Furthermore, it also includes multiple nozzles provided on the front folding seat and the rear folding seat, and air pipes are detachably connected to the front folding seat and the rear folding seat. The front folding seat and the rear folding seat have holes inside that communicate with the nozzles and air pipes. A manual valve is connected to one end of the air pipe relative to the rear folding seat.

[0010] Furthermore, the front folding seat and the rear folding seat are provided with an air guide device at one end of the folding plate. The air guide device is provided with a mounting column fixedly connected to the front folding seat and the rear folding seat, an air guide tube connected to the mounting column, an air inlet located at the bottom of the air guide tube and used to surround the nozzle, and an air outlet located at the top of the air guide tube. The air outlet is inclined from right to left and from top to bottom.

[0011] Furthermore, a reversing valve is provided between the manual valve and the air pipe. The reversing valve has two connecting pipes, a first connecting pipe and a second connecting pipe, on the side opposite to the manual valve, which are connected to the air pipe. A pressure reducing valve is provided on the second connecting pipe.

[0012] Furthermore, the top and bottom ends of the air guide duct are respectively provided with a first air guide plate and a second air guide plate.

[0013] Furthermore, the air guide duct has a horizontal hole in the middle, a third air guide plate is provided on the left side wall of the air guide duct near the horizontal hole, and a covering mechanism for covering the horizontal hole is provided on the outer side of the air guide duct. The covering mechanism includes the air guide duct, an L-shaped block is provided on the outer side of the air guide duct near the horizontal hole, a drive gear is rotatably provided in the middle of the L-shaped block, a sealing rack is slidably connected on the left side wall of the air guide duct, the rack meshes with the drive gear, a third motor for driving the drive gear to rotate is provided on the L-shaped block, a cover plate is hinged inside the horizontal hole, a support plate is provided on the right side wall of the air guide duct, a mounting seat is provided on the support plate, a lead screw is rotatably connected in the mounting seat, a fourth motor for driving the lead screw to rotate is provided on the mounting seat, a moving plate is threadedly connected to the lead screw, a moving block is fixedly provided on the top of the moving plate, and a fourth air guide plate is provided on the side of the moving block near the support plate.

[0014] By adopting the aforementioned technical solution, the beneficial effects of the present invention are:

[0015] This anti-leakage folding device with a cleaning function, through the setting of a guide plate, guides the anti-leakage rubber into the anti-leakage folding device by the second guide wheel, while the anti-leakage nonwoven fabric on both sides enters the guide plate part of the anti-leakage folding device through the first guide wheel. The rubber is applied to the rubber by the glue application device above the folding device, and the applied rubber is attached to the top of the anti-leakage nonwoven fabric. The anti-leakage nonwoven fabric is guided into the folding plate by the guide plate and folded. In this way, the anti-leakage nonwoven fabric is folded and glued to the rubber. After the wrapping, the wrapping strength is enhanced by pressing with pressure rollers. The guide plate is supported and fixed by a folding seat. While the guide plate is relatively long, the folding seat provides a large support surface, preventing wobbling due to the long guiding distance. This design effectively guides the longer folded material, unlike traditional guide plates which suffer from small support surfaces, unstable wobbling due to excessive length, or unstable folding due to insufficient guidance for shorter lengths. The large support area and long guide plate allow for thorough material guidance, and the horizontal arrangement of the guide plate ensures stable material folding. The folding plate is welded to the guide plate; there is no folding seat below the folding section, leaving the folding plate suspended. Above the folding device, adhesive is applied to the rubber band. This folding method has a lower probability of adhesive sticking, avoiding the instability of nonwoven fabric folding that often occurs with traditional structures. Compared to the situation where "there is a folding seat below the folding plate, and the gap between the folding plate and the folding seat is small," the probability of adhesive sticking during folding is greatly reduced. Furthermore, since the folding plate is suspended, it is easy to clean the adhesive seepage and dust on the folding plate manually. Compared to the previous need to manually clean the narrow gap between the folding plate and the folding seat, it is now possible to clean the suspended folding plate directly, which is much more convenient. This solves the technical problems of short guide plates, insufficient stability of folding materials, and the tendency of adhesive to be applied to the rubber band, which can easily cause the folding plate and the folding seat to stick during folding, resulting in instability of nonwoven fabric folding. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the existing structure of the present invention;

[0017] Figure 2 This is a schematic diagram of a partial front view of the present invention;

[0018] Figure 3 This is a top view of a partial structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the present invention;

[0020] Figure 5 This is a partial structural schematic diagram of the present invention;

[0021] Figure 6 This is a top view of a partial structural cross-section of the present invention;

[0022] Figure 7 This is a schematic cross-sectional view of the front folding seat and the rear folding seat of the present invention;

[0023] Figure 8 This is a schematic diagram of the front folding seat and rear folding seat and the reversing valve in use according to the present invention;

[0024] Figure 9 This is a front view schematic diagram of the air guiding device structure of the present invention;

[0025] Figure 10 This is a partial cross-sectional schematic diagram of the air guiding device structure of the present invention;

[0026] Figure 11 This is an enlarged structural diagram of point A in the present invention;

[0027] Figure 12 This is a schematic diagram of the folding device and cutting device of the present invention in use.

[0028] Figure 13 This is a schematic diagram of the cutting device structure of the present invention;

[0029] Figure 14 This is a schematic diagram of the moving state structure of the cutting device of the present invention;

[0030] Figure 15 This is a partial schematic diagram of the clamping state structure of the cutting device of the present invention;

[0031] Figure 16 This is a schematic planar view of the structure of the first and second shear blocks in the clamped state of the present invention. Detailed Implementation

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0033] refer to Figures 4 to 16 This embodiment provides a leak-proof folding device with a cleaning function, including a frame and a front folding seat 1, a rear folding seat 2 spaced behind the front folding seat, a guide plate 3 on the top surface of the front folding seat and the rear folding seat, a folding plate 4 on one side of the guide plate, an adhesive applicator 5 and a pressure roller 6. The adhesive applicator is located above the position of the folding plate before the folding material is folded.

[0034] The folding plate is inclined from one side to the other and from top to bottom in a horizontal direction. The folding plate is bent from one side to the other in a horizontal direction. The folding plate has a folding part 4a for folding the folding material at one end opposite to the guide plate. The folding plate gradually bends from the top surface of the guide plate to the folding part. The folding part and the front folding seat are preferably parallel to each other, which is the best for folding the input folding material. There can also be a certain angle difference. The folding part can be controlled at an angle difference of 30°, or the folding part can be adjusted to any angle in order to fold the input folding material. The frame also has a first guide wheel 7a for inputting non-woven fabric and a second guide wheel 7b for inputting rubber. The above-mentioned glue application device, pressure roller and guide wheel are all conventional technologies in the field and will not be described in detail here.

[0035] It also includes an adjustment mechanism 8 for adjusting the distance between the front folding seat and the rear folding seat. The adjustment mechanism includes an adjustment frame 8a, a sliding rod 8b that is slidably connected to the front folding seat and the rear folding seat, a rear adjustment rod 8c that passes through the front folding seat and is threadedly connected to the rear folding seat, and a front adjustment rod 8d. The rear adjustment rod is rotatably connected to the adjustment frame, and the front adjustment rod is threadedly connected to the front folding seat. The front adjustment rod is rotatably connected to the adjustment frame.

[0036] When adjusting the distance between the front and rear folding plates and the guide plate, first rotate the front adjusting rod. The rotation of the front adjusting rod drives the front folding seat to move. The front folding seat slides on the outside of the sliding rod on the adjusting frame. When adjusting the rear folding seat, rotate the rear adjusting rod. The rotation of the rear adjusting rod drives the rear folding seat to move. The rear folding seat moves back and forth through the sliding rod on the adjusting frame. During the back and forth movement of the front and rear folding seats, the folding plates and guide plates on the top surface move, thereby adjusting the distance between the front and rear folding plates and the guide plate. This adjustment structure uses the adjusting seat to move back and forth, making the structure occupy less space and more compact. It also allows for more precise control of the back and forth distance between the folding plates and the guide plate, and makes the front and rear folding seats less prone to shaking after movement.

[0037] It also includes multiple nozzles 9 provided on the front folding seat and the rear folding seat, and air pipes 10 are detachably connected to the front folding seat and the rear folding seat. The front folding seat and the rear folding seat are provided with holes 11 that communicate with the nozzles and air pipes. A manual valve 12 is connected to one end of the air pipe relative to the rear folding seat.

[0038] Multiple nozzles are located on the front and rear folding seats near the folding plate. Since several nozzles are installed on the front and rear folding seats, there are communication channels inside the seats that connect to the nozzles. These channels are connected to a manual valve via quick connectors and air pipes. The manual valve can be operated to control whether compressed air enters. The compressed air ejected from the nozzles can quickly clean the adhesive residue and dust from the folding seats and folding plate, achieving the purpose of timely and rapid cleaning. Because the nozzles are located on the front and rear folding seats near the folding plate, the distance between the front and rear folding seats is small, resulting in high air pressure. The front and rear nozzles spray air onto the front and rear guide plates respectively. Due to the high air pressure, the airflow can pass through the top surface of the guide plates and, guided by the airflow, can pass through the side of the folding plate that is in contact with the folding material, thus completing the rapid cleaning of the top surface of the folding seat, the guide plates, and the folding plate.

[0039] See again Figures 9-11 The front and rear folding seats are equipped with air guide devices 13 at one end opposite the folding plate. The air guide devices include mounting posts 131 fixedly connected to the front and rear folding seats, an air guide tube 132 connected to the mounting posts, an air inlet 133 located at the bottom of the air guide tube and used to surround the nozzles, and an air outlet 134 located at the top of the air guide tube. The air outlet is inclined from right to left and from top to bottom. When the internal passages of the front and rear folding seats are ventilated, the nozzles located at the front and rear ends of the front and rear folding seats will eject high-pressure gas, which enters the air guide tube through the air inlet. Then, the air is discharged through the air duct from the outlet, which is located near the front and rear folding seats. The nozzles near the folding plates blow out the air, passing through the gap between the front and rear folding seats, cleaning the adjacent areas between the folding plates and the front and rear folding seats. At the same time, the nozzles at the front and rear ends of the front and rear folding seats will spray high-pressure gas to clean the top surface of the front and rear folding seats. The folding plates, front and rear folding seats can be cleaned at the same time, avoiding the disadvantage of the nozzles only set between the front and rear folding seats, which cannot clean the top surface of the front and rear folding seats.

[0040] The bottom surface of the cover plate is provided with a first magnet 13q, and the bottom of the air guide duct is provided with a second magnet 13x that attracts the magnet 13q. The surface of the air guide duct is coated with fluorocarbon paint, which can improve the corrosion resistance of the air guide duct. When the cover plate is flipped downwards, the first magnet 13q at the bottom of the cover plate attracts the second magnet 13x on the air guide duct, which can improve the stability when closing.

[0041] A reversing valve 15 is provided between the manual valve and the air pipe. The reversing valve has two connecting pipes 16 and 17 connected to the air pipe on the side opposite to the manual valve. A pressure reducing valve 18 is provided on the second connecting pipe. The nozzle, air pipe, manual valve, reversing valve, first connecting pipe, second connecting pipe and pressure reducing valve are all conventional technologies in the field and will not be described in detail here.

[0042] Due to the high air pressure in the air pipe, ordinary pneumatic cleaning mechanisms can only be used for cleaning before starting or after stopping the machine. The pressure reducing valve is installed, and the reversing valve is electrically connected to the external control center. During the operation of the folding mechanism, the reversing valve connects to the second connecting pipe. Air passes through the second connecting pipe, then passes through the pressure reducing valve, and enters the holes in the front and rear folding seats through the air pipe, before being ejected from the nozzle. Due to the reduced pressure, dust on the top surfaces of the folding plates, front and rear folding seats can be slightly blown away. This can be controlled by the external control center, with the reversing valve switching at regular intervals. During operation, dust is removed from the top surfaces of the folding plates, front and rear folding seats, reducing the accumulation of dust and lint on these surfaces during use. After stopping the machine, the reversing valve connects back to the first connecting pipe, which bypasses the pressure reducing valve, allowing for cleaning of the top surfaces of the folding plates, front and rear folding seats.

[0043] The top and bottom ends of the air guide tube are respectively provided with a first air guide plate 13a and a second air guide plate 13b; the first air guide plate and the second air guide plate can guide and deliver air to the top surface of the front folding seat and the rear folding seat. The air sprayed from the nozzle is blown out through the first air guide plate and the second air guide plate, and the air force is more concentrated and stronger.

[0044] The air guide duct has a horizontal hole 13c in the middle. A third air guide plate 13d is located on the left side wall of the air guide duct near the horizontal hole. A covering mechanism for covering the horizontal hole is located on the outer side of the air guide duct. The covering mechanism includes the air guide duct. An L-shaped block 13e is located on the outer side of the air guide duct near the horizontal hole. A drive gear 13f is rotatably mounted in the middle of the L-shaped block. A sealing rack 13g is slidably connected to the left side wall of the air guide duct, and the rack meshes with the drive gear. A third motor 13h is mounted on the L-shaped block to drive the drive gear. A cover plate 13i is hinged inside the horizontal hole, and the cover plate rotates from bottom to left. A support plate 13j is located on the right side wall of the air guide duct, and a mounting base 13k is mounted on the support plate. A lead screw 13L is rotatably connected inside the mounting base. A fourth motor 13m is provided on the mounting base to drive the lead screw to rotate. A movable plate 13n is threadedly connected to the lead screw. A movable block 13o is fixed on the top of the movable plate. A fourth air guide plate 13p is provided on the side of the movable block near the support plate. The first air guide plate extends to the end of the front folding seat or the rear folding seat near the folding plate on the side opposite to the air guide tube. The second air guide plate extends to the middle position of the front folding seat or the rear folding seat on the side opposite to the air guide tube. The third air guide plate extends to the middle position of the front folding seat or the rear folding seat on the side opposite to the air guide tube. The fourth air guide plate extends to the side of the front folding seat or the rear folding seat opposite to the folding plate on the side opposite to the air guide tube.

[0045] When the angle between the first and second air guide plates is large, the airflow from them will be weaker. If the angle is too small, the cleaning area for the front and rear folding seats will be small. By using the third air guide plate, when cleaning the top surfaces of the front and rear folding seats is required, the fourth motor drives the lead screw to rotate, which in turn drives the drive gear to rotate. The drive gear moves the sealing rack upwards, disengaging it from the transverse hole. The lead screw rotation then moves the moving plate to the left, which in turn moves the moving block and the fourth air guide plate to the left. The fourth air guide plate moves to the left, passing through the cover plate, which then flips upwards by 90 degrees. The fourth air guide plate continues to pass through the transverse hole until it is completely inside. Air ejected from the rear nozzle passes directly through the air guide tube, then is blocked by the fourth air guide plate, guided to the left, and blown out through the horizontal hole. Because the third and fourth air guide plates direct airflow to the middle to the outer edge of the front and rear folding seats, and the angle between them is smaller, the top surfaces of the front and rear folding seats can be thoroughly cleaned. When cleaning is needed on the other half of the front and rear folding seats that are not completely covered, the third and fourth motors rotate in opposite directions. The third motor drives the drive gear to rotate, which in turn moves the sealing rack downwards to cover the horizontal hole of the air guide tube. The fourth motor drives the lead screw to rotate in the opposite direction, causing the moving block and the fourth air guide plate to move to the right and return to their original positions. Under the influence of gravity, the cover plate automatically flips downwards to cover and seal the horizontal holes. Air ejected from the nozzles passes through the top of the air duct and is blown out from the first and second air guide plates. Since the first air guide plate extends to the front or rear folding seat near the folding plate on one side relative to the air duct, and the second air guide plate extends to the middle of the front or rear folding seat on one side of the air duct, it will clean the uncovered area. The airflow from the guide plates is stronger, and the sealing rack and cover plate provide good sealing. The third and fourth motors are controlled by an external control center, allowing for automatic switching, making switching more convenient. The first and second air guide plates are located on the top plate, and their angle is larger than that of the third and fourth air guide plates. The first and second air guide plates are positioned on the top surface of the folding seat, near the folding plate. The nozzles located between the front and rear folding seats spray air, which can clean the dust on the top surface of the folding seat near the folding plate to a certain extent. It does not require a large amount of air force to clean this area. In fact, if the air force is too strong, it will also direct the airflow downward between the front and rear folding seats, affecting the front and rear airflow channels between them. The third and fourth air guide plates have a small angle between them, and blow out more air force. Because the air blown out by the third and fourth air guide plates is located on the folding seat away from the folding plate, there is more dust and lint on the surface. The air blown out by the third and fourth air guide plates is more effective in cleaning the other half of the folding plate.

[0046] refer to Figures 12-16A cutting device 14 for thinning the rubber is provided between the second guide wheel 7b and the glue application device. The cutting device includes a drive motor 141 mounted on the frame, a rotating disk 142 mounted on the output shaft of the drive motor, a guide rail 143 mounted on the frame, a guide block 144 slidably mounted on the guide rail, a cam 145 fixed on the rotating disk, a cam 146 located outside the cam, a first cutting block 147 and a second cutting block 148 rotatably mounted on the side of the guide block opposite the disk, and a spring 149. The spring 149 is disposed between the first shear block 147 and the second shear block 148. The rotating disk is provided with a guide groove 14a, and the guide block is provided with a protrusion 14b that is slidably connected to the guide groove. Half of the length of the guide groove is close to the edge of the rotating disk, and the other half of the guide groove extends towards the center of the rotating disk. Preferably, the first and second shear blocks have a gap of 0.07 to 0.2 when clamped, and the shearing surfaces of the first and second shear blocks are serrated, which has a good effect on thinning rubber, and the serration shape can improve the thinning effect.

[0047] The cutting device is configured such that a drive motor rotates a rotating disk, and a guide groove on the rotating disk rotates. During the rotation of the guide groove, a guide block moves up and down within a guide rail. This up-and-down movement of the guide block causes the first and second shear blocks to move downwards. When the protrusion moves to a position on the guide groove away from the center, the first and second shear blocks are in an unfolded state at the rubber band position. The rotating disk continues to rotate, and the cam on the cam shaft rotates, causing the first and second shear blocks to rotate. After thinning the rubber band, the protrusion moves to a position on the guide groove closer to the center, and the guide block moves upwards, causing the first and second shear blocks to move away from the rubber band. The rotary disc can drive the first and second shear blocks to move up and down, which avoids the problem of the elastic band wobbling when it is continuously fed in. If the first and second shear blocks are always in the position of the elastic band, the elastic band is prone to accidentally contacting the first and second shear blocks and breaking. Compared with the cylinder-driven guide block movement, this structure has less wear and uses less transmission mechanism. Only one motor is needed to drive the guide block to move up and down and control the opening and clamping of the first and second shear blocks. The cost of use is lower. Only the speed of the drive motor needs to be adjusted to control and match the production line. Compared with cylinders and other existing mechanisms, the debugging is simpler and the noise is lower.

[0048] Some plus-size sanitary products have reinforced elastic bands to increase their thickness and strength, thus reducing the risk of accidental tearing. However, during production, a simple modification is usually made to the one-size-fits-all production line. If the wear rate of the cutting roller is increased after the reinforcement, some elastic bands may not be completely cut off during the cutting process. By setting up a cutting device, the elastic bands can be thinned by the gap between the first and second shear blocks when they are clamped together. When the elastic bands pass through the cutting roller, they can be easily cut off by the cutting roller, which can also slow down the wear rate of the elastic bands and extend the service life of the cutting roller.

[0049] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0050] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0052] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0053] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A leak-proof folding device with a cleaning function, characterized in that, The device includes a frame, a front folding seat mounted on the frame, a rear folding seat spaced behind the front folding seat, a guide plate on the top surface of the front and rear folding seats, a folding plate on one side of the guide plate, a glue application device, and a pressure roller. The folding plate is inclined from one side to the other and from top to bottom. The folding plate is bent from one side to the other. The folding plate has a folding part at one end opposite the guide plate for folding the material. It also includes multiple nozzles provided on the front folding seat and the rear folding seat, and air pipes are detachably connected to the front folding seat and the rear folding seat. The front folding seat and the rear folding seat have holes inside that communicate with the nozzles and the air pipes. A manual valve is connected to one end of the air pipe relative to the rear folding seat. The front folding seat and the rear folding seat are provided with an air guide device at one end of the folding plate. The air guide device is provided with a mounting column fixedly connected to the front folding seat and the rear folding seat, an air guide tube connected to the mounting column, an air inlet located at the bottom of the air guide tube and used to surround the nozzle, and an air outlet located at the top of the air guide tube. The air outlet is inclined from right to left and from top to bottom.

2. The anti-leakage folding device with cleaning function according to claim 1, characterized in that: It also includes an adjustment mechanism for adjusting the distance between the front folding seat and the rear folding seat. The adjustment mechanism includes an adjustment frame, a sliding rod slidably connected to the front folding seat and the rear folding seat, a rear adjustment rod passing through the front folding seat and threadedly connected to the rear folding seat, and a front adjustment rod. The rear adjustment rod is rotatably connected to the adjustment frame, the front adjustment rod is threadedly connected to the front folding seat, and the front adjustment rod is rotatably connected to the adjustment frame.

3. A leak-proof folding device with a cleaning function according to claim 1, characterized in that: A reversing valve is provided between the manual valve and the air pipe. The reversing valve has two connecting pipes, a first connecting pipe and a second connecting pipe, on the side opposite to the manual valve. A pressure reducing valve is provided on the second connecting pipe.

4. A leak-proof folding device with a cleaning function according to claim 3, characterized in that: The top and bottom ends of the air guide tube are respectively provided with a first air guide plate and a second air guide plate.

5. A leak-proof folding device with a cleaning function according to claim 4, characterized in that: The air guide duct has a horizontal hole in the middle. A third air guide plate is provided on the left side wall of the air guide duct near the horizontal hole. A covering mechanism for covering the horizontal hole is provided on the outer side of the air guide duct. A cover plate is hinged inside the horizontal hole. A support plate is provided on the right side wall of the air guide duct. A mounting seat is provided on the support plate. A lead screw is rotatably connected inside the mounting seat. A fourth motor for driving the lead screw to rotate is provided on the mounting seat. A moving plate is threadedly connected to the lead screw. A moving block is fixed on the top of the moving plate. A fourth air guide plate is provided on the side of the moving block near the support plate.

6. A leak-proof folding device with a cleaning function according to claim 5, characterized in that: The covering mechanism includes an air guide tube, an L-shaped block is provided on the outer side of the air guide tube near the horizontal hole, a drive gear is rotatably provided in the middle of the L-shaped block, a sealing rack is slidably connected on the left side wall of the air guide tube, the sealing rack meshes with the drive gear, and a third motor is provided on the L-shaped block for driving the drive gear to rotate.

7. A leak-proof folding device with a cleaning function according to claim 5, characterized in that: The bottom surface of the cover plate is provided with a first magnet block, and the bottom of the air duct is provided with a second magnet block that attracts the magnet block.

8. A leak-proof folding device with a cleaning function according to claim 5, characterized in that: The surface of the air guide duct is coated with fluorocarbon paint.

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