License plate film laminating machine

Abstract

The invention provides a license plate film laminating machine. The license plate film laminating machine comprises a cabinet, an unwinding mechanism and a winding mechanism are arranged on the front side of the cabinet; a film guide mechanism is further arranged on the front side of the machine cabinet and comprises a second guide roller and a third guide roller, the second guide roller and the third guide roller are rotationally installed on the front side of the machine cabinet, and a lifting roller is arranged below the position between the second guide roller and the third guide roller; the first distance measuring sensor is arranged above the waste paper roll; the lifting roller is in sliding connection with the cabinet through a vertical sliding mechanism, and the vertical sliding mechanism is arranged in the cabinet; the vertical sliding mechanism comprises a sliding seat capable of moving up and down; the lifting roller is rotationally connected to the sliding seat; the second distance measuring sensor is positioned above the sliding seat and is used for measuring the height of the sliding seat; the control module is used for controlling the unwinding mechanism and the winding mechanism; the first distance measuring sensor and the second distance measuring sensor are both connected with the control module. The whole license plate film laminating machine can automatically adjust the winding speed and the unwinding speed, and manual active adjustment is not needed.

Description

Technical Field

[0001] This invention relates to the field of license plate lamination, and particularly to a license plate lamination machine. Background Technology

[0002] License plate lamination is a process of covering the surface of a license plate with a protective film to enhance its durability, water resistance, stain resistance, and reflective properties.

[0003] The license plate laminating machine unwinds the film material through its unwinding mechanism, and then applies the release film of the film material to the board through the laminating mechanism. The waste paper generated after lamination is then wound up by the rewinding mechanism.

[0004] During continuous lamination, the unwinding mechanism continuously unwinds and the rewinding mechanism continuously rewinds, causing the diameter of the film roll on the unwinding mechanism to continuously decrease, while the diameter of the waste paper roll on the rewinding mechanism continuously increases. The amount of film released in one rotation of the unwinding mechanism decreases, while the amount of waste paper rewound in one rotation of the rewinding mechanism increases. Therefore, the rotation speed needs to be adjusted during continuous lamination. Currently, existing technologies cannot automatically adjust based on the unwinding of the film roll and the rewinding of the waste paper roll, causing inconvenience to lamination. Summary of the Invention

[0005] To address the technical problem of the lack of automatic adjustment design, this invention provides a license plate laminating machine.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions: This invention provides a license plate laminating machine, including a cabinet; an unwinding mechanism and a rewinding mechanism are arranged on the front side of the cabinet, and a film roll is arranged on the unwinding mechanism; a film guiding mechanism is also arranged on the front side of the cabinet, the film guiding mechanism including a second guide roller and a third guide roller arranged at the same height, both the second and third guide rollers being rotatably mounted to the front side of the cabinet, and a lifting roller is arranged below between the second and third guide rollers; it also includes a laminating mechanism, the laminating mechanism including a peeling roller rotatably mounted to the front side of the cabinet, the peeling roller being connected to a driving component arranged inside the cabinet, the driving component being used to drive the peeling roller to rotate at a constant speed; a pressure roller is arranged above the peeling roller; a conveying mechanism for conveying sheet material is arranged below the peeling roller; the film material on the film roll bypasses the film guiding mechanism and is released on the film material. After the film passes over the peeling roller, it adheres to the plate below the peeling roller; the film material at the top side of the peeling roller adheres to the bottom of the pressure roller; the release waste paper generated after the film is coated is wound onto the winding mechanism to form a waste paper roll; a first distance sensor is set above the waste paper roll to measure the roll diameter; a vertical sliding mechanism is used, the lifting roller is slidably connected to the cabinet through the vertical sliding mechanism, and the vertical sliding mechanism is set inside the cabinet; the vertical sliding mechanism includes a slide that can move up and down; the lifting roller is rotatably connected to the slide; a second distance sensor is located above the slide and is used to measure the height of the slide; a control module is used to control the unwinding mechanism and the winding mechanism; both the first distance sensor and the second distance sensor are connected to the control module.

[0007] Preferably, the vertical sliding mechanism further includes a vertical plate fixedly installed inside the cabinet, on which a vertical slide rail is fixedly installed; the slide block is slidably connected to the vertical slide rail, and a vertical groove is provided on the front side wall of the cabinet, through which the lifting roller passes; a sealing plate is fixedly attached to the slide block via a connecting seat, and a storage shell is fixedly connected to the bottom of the cabinet, with the bottom of the sealing plate inserted into the storage shell; a circular hole is provided on the sealing plate for the end of the lifting roller to pass through, and a sealing sleeve is provided on the wall of the circular hole.

[0008] Preferably, a telescopic cover is provided on the inner side of the vertical groove; the telescopic cover includes a corrugated soft cover, one side opening of the corrugated soft cover is fixedly sleeved with the inner edge of the vertical groove, and a side ring is fixed on the other side opening of the corrugated soft cover, and an inflatable sealing ring is fixed on the side ring; the inflatable sealing ring faces the sealing plate.

[0009] Preferably, the telescopic cover is connected to at least one movable mechanism; the movable mechanism includes a movable block and a base fixedly installed on the inner wall of the front side of the cabinet. The base has a guide hole, the movable block is slidably sleeved with the guide hole, and a connecting strip is fixed to one end of the movable block. The connecting strip is fixed to the top of the side ring. A second spring is sleeved on the movable block. The two ends of the second spring are fixed to the connecting strip and the base, respectively. A pressure-bearing slope is provided at the end of the movable block located at the top of the telescopic cover away from the connecting strip.

[0010] Preferably, a second connecting frame is fixedly installed on the top of the sealing plate; a pressure block is fixed on the second connecting frame, and a pressure slope is provided on one side of the pressure block.

[0011] Preferably, an inflation mechanism is installed at the bottom of the cabinet, and a pressure plate fixed to the slide is provided above the inflation mechanism; the inflation mechanism includes a cylinder fixedly installed at the bottom of the cabinet; a third piston is installed inside the cylinder, a second pressure column is fixed at the top of the third piston, the bottom surface of the third piston and the inner wall of the cylinder form an inflation cavity, a third spring is provided inside the inflation cavity, and a second connecting pipe is fixedly connected to the bottom of the cylinder, and the second connecting pipe is connected to the inflation sealing ring.

[0012] Preferably, it further includes an air injection mechanism disposed within the cabinet; the air injection mechanism includes two air cylinders; the air cylinders are fixed to the inner wall of the cabinet via mounting bases, each of the two air cylinders is fitted with a first piston, and a stopper rod is fixed between the two first pistons; a first one-way valve and a second one-way valve are disposed on the end of each air cylinder; the first one-way valve is connected to a filter located outside the cabinet via an air inlet pipe; the second one-way valve is connected to a first connecting pipe via an exhaust pipe, and the first connecting pipe is provided with an exhaust port located inside the cabinet; a second cylinder is fixedly installed on the inner wall of the cabinet, and the output end of the second cylinder is fixed to the stopper rod via a first connecting bracket.

[0013] Preferably, a blower cover is installed on the front side of the cabinet, and the blower cover faces the uncoated board. The blower cover is connected to the first connecting pipe through a connection port.

[0014] Preferably, it further includes an oil injection mechanism, which includes a support base fixedly installed on the inner wall of the bottom of the cabinet; an oil cylinder is fixedly installed on the top of the support base; a second piston is connected in cooperation with the oil cylinder, a first pressure column is fixedly installed on the side wall of the second piston, a pressing seat is provided on one side of the first pressure column, the pressing seat is fixed to the piston rod, a first spring is provided in the oil cylinder, and a third one-way valve and a fourth one-way valve are installed at one end of the oil cylinder. The third one-way valve is connected to an oil storage tank through an oil extraction pipe, and the fourth one-way valve is connected to a cavity opened in a vertical slide rail through an oil injection pipe. The vertical slide rail has multiple oil outlet holes along its length.

[0015] Preferably, the oil tank is located below the vertical slide rail, and the top of the oil tank is provided with an oil filling hole.

[0016] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0017] The positive and progressive effects of this invention are as follows: The aforementioned license plate laminating machine, as the film roll continuously unwinds, experiences a continuous decrease in roll diameter. This causes the lifting roller to raise the slide block. A second distance sensor, in conjunction with the control module, monitors the slide block height in real time, automatically determining the film roll diameter and providing feedback to the control module for automatic control of the unwinding mechanism. Furthermore, a first distance sensor is installed above the waste paper roll in the winding mechanism. This sensor, also in conjunction with the control module, monitors the waste paper roll's diameter in real time, providing feedback to the control module for automatic control of the winding mechanism. In summary, this allows the entire license plate laminating machine to adjust automatically, eliminating the need for manual adjustment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall front and side structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall back structure of the present invention.

[0020] Figure 3 This is a front view of the entire invention.

[0021] Figure 4 This is a schematic diagram of the coating mechanism of the present invention.

[0022] Figure 5 This is a schematic diagram of the coating mechanism of the present invention in the coating state.

[0023] Figure 6 This is a schematic diagram of the structure of the air injection mechanism, oil injection mechanism, vertical sliding mechanism, telescopic cover, and sealing plate of the present invention.

[0024] Figure 7 This is a schematic diagram of the gas injection mechanism and oil injection mechanism of the present invention.

[0025] Figure 8 This is a schematic diagram of the vertical sliding mechanism, telescopic cover, and sealing plate of the present invention.

[0026] Figure 9 This is a schematic diagram of the top and bottom sides of the telescopic cover of the present invention.

[0027] Figure 10 For the present invention Figure 9 Enlarged structural diagram of section A in the middle.

[0028] Figure 11 For the present invention Figure 9 Enlarged structural diagram of section B.

[0029] Explanation of reference numerals in the attached figures 1. Base; 2. Cabinet; 201. Cabinet door; 202. Vertical groove; 3. Unwinding roller; 4. Rewinding roller; 5. First guide roller; 6. Second guide roller; 7. Lifting roller; 8. Third guide roller; 9. Fourth guide roller; 10. Fifth guide roller; 11. Sixth guide roller; 12. Coating mechanism; 1201. Peeling roller; 1202. Pressure roller; 1203. First cylinder; 13. Carrier roller; 14. Conveying roller; 15. Air blower cover; 16. Filter; 17. Sheet material; 18. Membrane material; 1801. Release film Waste paper; 1802, Release film; 19, First ranging sensor; 20, Air injection mechanism; 2001, Mounting base; 2002, Air cylinder; 2003, First piston; 2004, Plug rod; 2005, Second cylinder; 2006, First connecting frame; 2007, First one-way valve; 2008, Second one-way valve; 2009, Inlet pipe; 2010, Exhaust pipe; 2011, First connecting pipe; 2012, Connection port; 2013, Exhaust port; 2014, Pressing seat; 21, Vertical slide 2101. Moving mechanism; 2102. Vertical plate; 2103. Vertical slide rail; 2104. Slide seat; 2105. Connecting seat; 2106. Pressure plate; 22. Oil injection mechanism; 2201. Support seat; 2202. Oil cylinder; 2203. Second piston; 2204. First pressure column; 2205. First spring; 2206. Third check valve; 2207. Fourth check valve; 2208. Oil suction pipe; 2209. Oil injection pipe; 2210. Oil reservoir; 2211. Filling port; 23. Telescopic cover; 230 1. Corrugated soft cover; 2302. Side ring; 2303. Inflatable sealing ring; 24. Sealing plate; 25. Storage shell; 26. Second ranging sensor; 27. Pressure block; 2701. Second connecting frame; 28. Movable mechanism; 2801. Connecting bar; 2802. Movable block; 2803. Carrier; 2804. Second spring; 29. ​​Inflating mechanism; 2901. Cylinder; 2902. Second connecting pipe; 2903. Third spring; 2904. Third piston; 2905. Second pressure column. Detailed Implementation

[0030] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0031] like Figures 1-11 As shown, a license plate laminating machine includes a cabinet 2; the cabinet 2 is provided with an unwinding mechanism and a rewinding mechanism on its front side, and a film roll is provided on the unwinding mechanism; The front side of the cabinet 2 is also provided with a film guiding mechanism, which includes a second guide roller 6 and a third guide roller 8 set at the same height. The second guide roller 6 and the third guide roller 8 are rotatably installed on the front side of the cabinet 2, and a lifting roller 7 is provided below the second guide roller 6 and the third guide roller 8. Also includes: The coating mechanism 12 includes a peeling roller 1201 rotatably mounted to the front side of the cabinet 2. The peeling roller 1201 is connected to a driving component disposed inside the cabinet 2. The driving component is used to drive the peeling roller 1201 to rotate at a constant speed. A pressure roller 1202 is disposed above the peeling roller 1201. A conveying mechanism for conveying the sheet material 17 is provided below the peeling roller 1201; The film material 18 on the film roll passes around the film guiding mechanism, and after the release film 1802 on the film material 18 passes around the peeling roller 1201, it is attached to the plate 17 below the peeling roller 1201; the film material 18 at the top side of the peeling roller 1201 is attached to the bottom of the pressure roller 1202. The release paper 1801 generated after the film material 18 is coated is wound onto the winding mechanism to form a waste paper roll; The first ranging sensor 19 is disposed above the waste paper roll to measure the roll diameter of the waste paper roll; The vertical sliding mechanism 21 is provided, wherein the lifting roller 7 is slidably connected to the cabinet 2 via the vertical sliding mechanism 21, and the vertical sliding mechanism 21 is disposed inside the cabinet 2; the vertical sliding mechanism 21 includes a slide block 2103 that can move up and down; the lifting roller 7 is rotatably connected to the slide block 2103. The second ranging sensor 26 is located above the slide 2103 and is used to measure the height of the slide 2103. The control module is used to control the unwinding mechanism and the winding mechanism; the first ranging sensor 19 and the second ranging sensor 26 are both connected to the control module.

[0032] like Figure 1 and Figure 3 As shown, the winding mechanism includes a first servo motor housed within the cabinet 2, and the output shaft of the first servo motor is connected to a winding roller 4. The first servo motor drives the winding roller 4 to rotate, thereby winding up the release waste paper 1801.

[0033] The first ranging sensor 19 performs real-time sensing and transmits the data to the control module. The control module processes the data to measure the diameter of the waste paper roll. Based on the measured roll diameter data, the control module automatically adjusts the torque and speed of the winding mechanism. The larger the roll diameter, the greater the torque to ensure tension, while the speed is slowed down to make the winding speed equal to the laminating speed.

[0034] The drive unit connected to the peeling roller 1201 also adopts a servo motor, which drives the peeling roller 1201 to rotate. The rotation speed of the peeling roller 1201 is constant, thus maintaining a constant film coating speed.

[0035] At the same time, pressure roller 1202 is set, such as Figure 5 As shown, the position between the bottom of the pressure roller 1202 and the top of the peeling roller 1201 is used to separate the release waste paper 1801 and the release film 1802 in the film material 18. During separation, both are driven by the peeling roller 1201, which makes the speed of separation equal, reduces the mutual pulling between the release waste paper 1801 and the release film 1802, and avoids the problem of wrinkling of the release film 1802 during the lamination process.

[0036] The unwinding mechanism includes a second servo motor installed inside the cabinet 2, and the output shaft of the second servo motor is connected to an unwinding roller 3. A film roll is mounted on the unwinding roller 3, and the second servo motor drives the unwinding roller 3 and the film roll thereon to rotate, so as to unwind the film material 18.

[0037] As the film material 18 is unwound, the diameter of the film roll continuously decreases, and the amount of film material 18 unwound at the speed at which the second servo motor drives the film roll to rotate one revolution also continuously decreases. When the unwinding speed cannot keep up with the laminating speed, the film material 18 can only be pulled upwards by the lifting roller 7 (e.g., Figure 3 As shown, the film material 18 between the second guide roller 6, the third guide roller 8, and the lifting roller 7 is V-shaped. The lifting roller 7 is pulled upward to consume the amount of the V-shaped film material 18 to compensate. The lifting roller 7 drives the slide 2103 to rise in height, while the second distance sensor 26 performs real-time sensing and transmits the sensing data to the control module in real time. The control module processes the data to obtain the height position of the slide 2103 in real time. When the height of the slide 2103 increases, it is determined that the roll diameter of the film roll decreases. The control module increases the rotation speed of the unwinding roller 3 to maintain the unwinding speed of the film material 18.

[0038] The control module includes a servo motor controller, which controls the first servo motor in the winding mechanism and the second servo motor in the unwinding mechanism.

[0039] Among them, the unwinding roller 33 and the winding roller 44 are preferably air-expanding shafts.

[0040] The above design enables the entire license plate laminating machine to automatically adjust the unwinding and rewinding without requiring manual adjustment.

[0041] The bottom of the cabinet 2 is fixedly installed with a base 1; such as Figure 4As shown, the front end of the peeling roller 1201 in the laminating mechanism 12 is rotatably connected to the frame on the top of the base 1, while the driving component connected to the other end of the peeling roller 1201 is located inside the cabinet 2. A vertically arranged first cylinder 1203 is also fixedly installed on the frame. An end seat is rotatably installed at both ends of the pressure roller 1202; one end seat is fixed to the output end of the first cylinder 1203, and the other end seat is slidably connected to the front side of the cabinet 2. During lamination, the first cylinder 1203 keeps the pressure roller 1202 in a low position, pressing it against the film material 18 at the top of the peeling roller 1201. After the film material 18 is used up, the film roll needs to be replaced on the unwinding roller 3. The first cylinder 1203 drives the pressure roller 1202 to a high position, creating a sufficient operating distance between the pressure roller 1202 and the peeling roller 1201.

[0042] like Figure 1 and Figure 3 As shown, the film guiding mechanism further includes a first guide roller 5, a fourth guide roller 9, a fifth guide roller 10, and a sixth guide roller 11; the first guide roller 5, the third guide roller 8, the fourth guide roller 9, the fifth guide roller 10, and the sixth guide roller 11 are all rotatably mounted to the front side of the cabinet 2. The film material 18 released from the film roll sequentially passes around the first guide roller 5, the second guide roller 6, the lifting roller 7, the third guide roller 8, the fourth guide roller 9, the fifth guide roller 10, and the sixth guide roller 11. When the film material 18 is being coated, it moves and is guided by the first guide roller 5, the second guide roller 6, the lifting roller 7, the third guide roller 8, the fourth guide roller 9, the fifth guide roller 10, and the sixth guide roller 11.

[0043] The conveying mechanism for conveying the sheet material 17 includes multiple carrier rollers 13 rotatably mounted on the top of the base 1. These carrier rollers 13 are evenly spaced and are used to hold the sheet material 17. A conveyor roller 14 is also rotatably mounted between the frame on the base 1 and the front side of the cabinet 2. The conveyor roller 14 is connected to a motor located inside the cabinet 2. When the sheet material 17 is conveyed, its top surface contacts the conveyor roller 14. The motor drives the conveyor roller 14 to rotate, and the conveyor roller 14, in conjunction with the carrier rollers 13, conveys the sheet material 17. The conveying speed of the sheet material 17 is equal to the laminating speed, allowing for continuous lamination of the sheet material 17. After lamination, the sheet material 17 is cut to form license plate material.

[0044] like Figure 3 and Figure 8As shown, the vertical sliding mechanism 21 further includes a vertical plate 2101 fixedly installed inside the cabinet 2, on which a vertical slide rail 2102 is fixedly installed; the slide block 2103 is slidably connected to the vertical slide rail 2102; a vertical groove 202 is provided on the front side wall of the cabinet 2, through which the lifting roller 7 passes; a sealing plate 24 is fixed to the slide block 2103 via a connecting seat 2104; a storage shell 25 is fixedly connected to the bottom of the cabinet 2; the bottom of the sealing plate 24 is inserted into the storage shell 25; a circular hole is provided on the sealing plate 24 for the end of the lifting roller 7 to pass through, and a sealing sleeve is provided on the wall of the circular hole. The second ranging sensor 26 is fixed on the vertical plate 2101.

[0045] When the lifting roller 7 moves up and down, it drives the slide block 2103 to move together. The slide block 2103 slides on the vertical slide rail 2102, and the slide block 2103 and the vertical slide rail 2102 provide guidance for the up and down movement of the lifting roller 7. The vertical groove 202 is used for the lifting roller 7 to pass through the front side of the cabinet 2 and meet its up and down movement requirements.

[0046] like Figures 8-9 As shown, a telescopic cover 23 is provided on the inner side of the vertical groove 202; the telescopic cover 23 includes a corrugated soft cover 2301, one side opening of the corrugated soft cover 2301 is fixedly sleeved with the inner edge of the vertical groove 202, and a side ring 2302 is fixed on the other side opening of the corrugated soft cover 2301, and an inflatable sealing ring 2303 is fixed on the side ring 2302; the inflatable sealing ring 2303 faces the sealing plate 24.

[0047] like Figures 9-10 As shown, the telescopic cover 23 is connected to at least one movable mechanism 28; the movable mechanism 28 includes a movable block 2802 and a carrier 2803 fixedly installed on the inner wall of the front side of the cabinet 2. The carrier 2803 has a guide hole, the movable block 2802 is slidably sleeved with the guide hole, and a connecting strip 2801 is fixed to one end of the movable block 2802. The connecting strip 2801 is fixed to the top of the side ring 2302. A second spring 2804 is sleeved on the movable block 2802. The two ends of the second spring 2804 are fixed to the connecting strip 2801 and the carrier 2803 respectively. A pressure-bearing slope is provided at the end of the movable block 2802 located at the top of the telescopic cover 23 away from the connecting strip 2801.

[0048] The top of the sealing plate 24 is fixedly installed with a second connecting frame 2701; the second connecting frame 2701 is fixed with a pressure block 27, and a pressure slope is provided on one side of the pressure block 27.

[0049] like Figure 9 and Figure 11As shown, an inflation mechanism 29 is installed at the bottom of the cabinet 2, and a pressure plate 2105 fixed to the slide 2103 is provided above the inflation mechanism 29. The inflation mechanism 29 includes a cylinder 2901 fixedly installed at the bottom of the cabinet 2. A third piston 2904 is installed inside the cylinder 2901. A second pressure column 2905 is fixed to the top of the third piston 2904. The bottom surface of the third piston 2904 and the inner wall of the cylinder 2901 form an inflation cavity. A third spring 2903 is provided inside the inflation cavity. A second connecting pipe 2902 is fixedly connected to the bottom of the cylinder 2901, and the second connecting pipe 2902 is connected to the inflation sealing ring 2303.

[0050] When the entire laminating machine is not in operation, there is no film material 18 on it, and the lifting roller 7 is not lifted by the film material 18. Under the action of gravity, the lifting roller 7, the slide 2103, and the sealing plate 24 fall to the lowest position. At this time, the pressure slope of the pressure block 27 at the top of the sealing plate 24 presses against the pressure slope, such as... Figures 9-10 As shown, the movable block 2802 moves the side ring 2302 closer to the sealing plate 24 via the connecting strip 2801. The inflatable sealing ring 2303 on it presses against the sealing plate 24 to achieve sealing, and stretches the second spring 2804. At the same time, the pressure plate 2105 presses down the second pressure column 2905, causing the third piston 2904 to move to a low position. Simultaneously, the third spring 2903 is compressed, and the third piston 2904 pushes the gas in the inflation chamber out and inflates the inflatable sealing ring 2303 through the second connecting pipe 2902, causing it to expand and improve the sealing effect.

[0051] The above design enables the vertical groove 202 to be automatically closed when the laminating machine is not in operation, preventing dust from entering the cabinet 2 through the vertical groove 202.

[0052] During the preparation of the laminating machine, after the film material 18 is wound onto the lifting roller 7 and the film material 18 is tensioned, the lifting roller 7 will be raised so that the pressure plate 2105 does not press down on the second pressure column 2905 and the pressure block 27 separates from the movable block 2802. The second pressure column 2905 and the third piston 2904 move upward by the elastic force of the third spring 2903, which increases the volume of the inflation chamber. The gas in the inflation sealing ring 2303 is then drawn in through the second connecting pipe 2902. This causes the block to contract, and at the same time, the movable block 2802 loses the squeezing force of the pressure block 27. The movable block 2802 moves due to the elastic force of the second spring 2804. The movable block 2802 drives the side ring 2302 and the inflatable sealing ring 2303 to separate from the sealing plate 24 through the connecting strip 2801, and a gap is generated between the inflatable sealing ring 2303 and the sealing plate 24. This design avoids friction between the sealing plate 24 and the inflatable sealing ring 2303 during the subsequent upward movement of the sealing plate 24.

[0053] The sealing plate 24 has sufficient length, such as Figure 8 As shown; at this time, the sealing plate 24 is at its lowest position, and the part of the sealing plate 24 outside the housing 25 can completely cover the telescopic cover 23. When the sealing plate 24 moves upward together with the lifting roller 7, the part of the sealing plate 24 inside the housing 25 leaves the housing 25 to continuously block the telescopic cover 23 and leave only a small gap between the sealing plate 24 and the side of the telescopic cover 23.

[0054] like Figure 1 , Figure 6 as well as Figure 7 As shown, it also includes an air injection mechanism 20 disposed inside the cabinet 2; the air injection mechanism 20 includes two air cylinders 2002; the air cylinders 2002 are fixed to the inner wall of the cabinet 2 by mounting bases 2001, and a first piston 2003 is connected to each of the two air cylinders 2002, and a stopper rod 2004 is fixed between the two first pistons 2003; a first one-way valve 2007 and a second one-way valve 2008 are provided on the end side of the air cylinders 2002; the first one-way valve 2007 is connected to a filter 16 located outside the cabinet 2 by an air inlet pipe 2009; the second one-way valve 2008 is connected to a first connecting pipe 2011 by an exhaust pipe 2010, and the first connecting pipe 2011 is provided with an exhaust port 2013 located inside the cabinet 2; a second cylinder 2005 is fixedly installed on the inner wall of the cabinet 2, and the output end of the second cylinder 2005 is fixed to the stopper rod 2004 by a first connecting bracket 2006.

[0055] During the operation of the entire laminating machine, clean airflow is injected into the cabinet 2 through the air injection mechanism 20, creating positive pressure inside the cabinet 2. At the same time, the positive pressure airflow is discharged outward from the gaps, which prevents dust from entering through the gaps and ensures dust protection for the vertical groove 202 during operation.

[0056] The air injection mechanism 20 operates as follows: the second cylinder 2005 extends and retracts, driving the piston rod 2004 to move back and forth between the two air cylinders 2002 via the first connecting bracket 2006. When the piston rod 2004 moves closer to one of the air cylinders 2002, it drives the first piston 2003 inside that air cylinder 2002 to compress the air inside. This air then passes through the second one-way valve 2008 and the exhaust pipe 2010 into the first connecting pipe 2011, and is then discharged through the exhaust port 2013. In cabinet 2, the stopper 2004 also drives the first piston 2003 in another air cylinder 2002 to move, so that the air cylinder 2002 draws in external air. The air outside cabinet 2 is filtered by filter 16 and enters the air cylinder 2002 through air inlet pipe 2009 and first one-way valve 2007. By moving back and forth between the two air cylinders 2002 through the stopper 2004, the two air cylinders 2002 alternately inject air into the first connecting pipe 2011 and alternately draw in air from outside cabinet 2.

[0057] like Figure 3 and Figure 7 As shown, a blower cover 15 is installed on the front side of the cabinet 2, and the blower cover 15 faces the uncoated plate 17. The blower cover 15 is connected to the first connecting pipe 2011 through the connection port 2012.

[0058] When the laminating machine is working, the clean airflow injected into the first connecting pipe 2011 by the air injection mechanism 20 is discharged into the cabinet 2 through the exhaust port 2013 and also injected into the blower cover 15 through the connecting port 2012. The blower cover 15 blows air onto the board 17 to blow away the dust and foreign objects adhering to the board 17, so as to prevent dust and foreign objects from being trapped between the release film 1802 and the top surface of the board 17 when the board 17 is laminated.

[0059] like Figures 7-8 As shown, it also includes an oil injection mechanism 22, which includes a support base 2201 fixedly installed on the inner wall of the bottom of the cabinet 2; an oil cylinder 2202 is fixedly installed on the top of the support base 2201; a second piston 2203 is connected inside the oil cylinder 2202, a first pressure column 2204 is fixedly installed on the side wall of the second piston 2203, and a pressing seat 2014 is provided on one side of the first pressure column 2204. The pressing seat 2014 and... The stopper rod 2004 is fixed. A first spring 2205 is provided inside the oil cylinder 2202. A third one-way valve 2206 and a fourth one-way valve 2207 are installed at one end of the oil cylinder 2202. The third one-way valve 2206 is connected to the oil storage tank 2210 through the oil extraction pipe 2208. The fourth one-way valve 2207 is connected to the cavity opened in the vertical slide rail 2102 through the oil injection pipe 2209. The vertical slide rail 2102 has multiple oil outlet holes along its length.

[0060] The oil storage tank 2210 is located below the vertical slide rail 2102, and the top of the oil storage tank 2210 is provided with an oil filling hole.

[0061] When the laminating machine is working, the second cylinder 2005 drives the piston rod 2004 to move. In addition to driving the air injection mechanism 20, the piston rod 2004 also drives the pressing seat 2014 to move. The pressing seat 2014 reciprocates to press or release the first pressing column 2204. When pressing, the first pressing column 2204 drives the second piston 2203 to push the oil in the oil cylinder 2202 and compress the first spring 2205. The lubricating oil is discharged into the cavity in the vertical slide rail 2102 through the fourth one-way valve 2207 and the oil injection pipe 2209, and finally discharged from the oil outlet hole. This provides automatic lubrication between the vertical slide rail 2102 and the slide seat 2103. The excess oil discharged from the oil outlet hole can fall into the oil storage tank 2210 by gravity and flow back into the oil storage tank 2210 through the oil filling port 2211. When the first pressure-bearing column 2204 is released, the second piston 2203 and the first pressure-bearing column 2204 are reset by the elastic force of the first spring 2205. The oil cylinder 2202 then draws in oil, and the oil in the oil reservoir 2210 enters the oil cylinder 2202 through the oil extraction pipe 2208 and the third one-way valve 2206. This design achieves continuous lubrication.

[0062] The back of the cabinet 2 is equipped with a cabinet door 201, which allows the back of the cabinet 2 to be opened and closed.

[0063] This invention is not limited to the embodiments described above. Any changes in shape or structure shall fall within the protection scope of this invention. The protection scope of this invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of this invention, but all such changes and modifications shall fall within the protection scope of this invention.

Claims

1. A license plate laminating machine, comprising a cabinet (2); characterized in that, The cabinet (2) is provided with an unwinding mechanism and a winding mechanism on its front side, and the unwinding mechanism is provided with a film roll. The front side of the cabinet (2) is also provided with a film guiding mechanism, which includes a second guide roller (6) and a third guide roller (8) set at the same height. The second guide roller (6) and the third guide roller (8) are rotatably installed on the front side of the cabinet (2), and a lifting roller (7) is provided below the second guide roller (6) and the third guide roller (8). It also includes: a coating mechanism (12), the coating mechanism (12) including a peeling roller (1201) rotatably mounted to the front side of the cabinet (2), the peeling roller (1201) being connected to a drive unit disposed in the cabinet (2), the drive unit being used to drive the peeling roller (1201) to rotate at a constant speed; a pressure roller (1202) is disposed above the peeling roller (1201). A conveying mechanism for conveying the sheet material (17) is provided below the peeling roller (1201); The film material (18) on the film roll passes around the film guiding mechanism, and after the release film (1802) on the film material (18) passes around the peeling roller (1201), it is attached to the plate (17) below the peeling roller (1201); the film material (18) at the top side of the peeling roller (1201) is attached to the bottom of the pressure roller (1202); The release paper (1801) generated after the film material (18) is coated is wound onto the winding mechanism to form a waste paper roll; The first distance sensor (19) is disposed above the waste paper roll to measure the roll diameter; A vertical sliding mechanism (21) is provided, wherein the lifting roller (7) is slidably connected to the cabinet (2) through the vertical sliding mechanism (21), and the vertical sliding mechanism (21) is located inside the cabinet (2); the vertical sliding mechanism (21) includes a slide block (2103) that can move up and down; the lifting roller (7) is rotatably connected to the slide block (2103); The second distance sensor (26) is located above the slide (2103) and is used to measure the height of the slide (2103); The control module is used to control the unwinding mechanism and the winding mechanism; the first distance sensor (19) and the second distance sensor (26) are both connected to the control module.

2. The license plate laminating machine as described in claim 1, characterized in that: The vertical sliding mechanism (21) further includes a vertical plate (2101) fixedly installed in the cabinet (2), and a vertical slide rail (2102) fixedly installed on the vertical plate (2101); the slide block (2103) is slidably connected to the vertical slide rail (2102), and a vertical groove (202) is opened on the front side wall of the cabinet (2), through which the lifting roller (7) passes; the slide block (2103) is fixed with a sealing plate (24) through a connecting seat (2104), and a storage shell (25) is fixedly connected to the bottom of the cabinet (2), the bottom of the sealing plate (24) is inserted into the storage shell (25), and a round hole is opened on the sealing plate (24) for the end of the lifting roller (7) to pass through, and a sealing sleeve is provided on the wall of the round hole.

3. The license plate laminating machine as described in claim 2, characterized in that: A telescopic cover (23) is provided on the inner side of the vertical groove (202); the telescopic cover (23) includes a corrugated soft cover (2301), one side opening of the corrugated soft cover (2301) is fixedly sleeved with the inner edge of the vertical groove (202), and a side ring (2302) is fixed on the other side opening of the corrugated soft cover (2301), and an inflatable sealing ring (2303) is fixed on the side ring (2302); the inflatable sealing ring (2303) faces the sealing plate (24).

4. A license plate laminating machine as described in claim 3, characterized in that: The telescopic cover (23) is connected to at least one movable mechanism (28); the movable mechanism (28) includes a movable block (2802) and a carrier (2803) fixedly installed on the inner wall of the front side of the cabinet (2). The carrier (2803) has a guide hole. The movable block (2802) is slidably sleeved with the guide hole. One end of the movable block (2802) is fixed with a connecting strip (2801). The connecting strip (2801) is fixed with the top of the side ring (2302). A second spring (2804) is sleeved on the movable block (2802). The two ends of the second spring (2804) are fixed with the connecting strip (2801) and the carrier (2803) respectively. The movable block (2802) located at the top of the telescopic cover (23) has a pressure inclined surface at the end away from the connecting strip (2801).

5. A license plate laminating machine as described in claim 4, characterized in that: The top of the sealing plate (24) is fixedly installed with a second connecting frame (2701); the second connecting frame (2701) is fixed with a pressure block (27), and a pressure slope is provided on one side of the pressure block (27).

6. A license plate laminating machine as described in claim 2, characterized in that: An inflation mechanism (29) is installed at the bottom of the cabinet (2), and a pressure plate (2105) fixed to the slide (2103) is provided above the inflation mechanism (29); the inflation mechanism (29) includes a cylinder (2901) fixedly installed at the bottom of the cabinet (2); a third piston (2904) is installed inside the cylinder (2901), a second pressure column (2905) is fixed at the top of the third piston (2904), the bottom surface of the third piston (2904) and the inner wall of the cylinder (2901) form an inflation chamber, a third spring (2903) is provided inside the inflation chamber, and a second connecting pipe (2902) is fixedly connected to the bottom of the cylinder (2901), and the second connecting pipe (2902) is connected to the inflation sealing ring (2303).

7. A license plate laminating machine as described in claim 2, characterized in that: It also includes an air injection mechanism (20) installed inside the cabinet (2); the air injection mechanism (20) includes two air cylinders (2002); the air cylinders (2002) are fixed to the inner wall of the cabinet (2) by mounting bases (2001), and each of the two air cylinders (2002) is connected to a first piston (2003), and a stopper rod (2004) is fixed between the two first pistons (2003). A first one-way valve (2007) and a second one-way valve (2008) are provided on the end side of the air cylinder (2002). The valve (2007) is connected to a filter (16) located outside the cabinet (2) via an air inlet pipe (2009); the second one-way valve (2008) is connected to a first connecting pipe (2011) via an exhaust pipe (2010), and the first connecting pipe (2011) is provided with an exhaust port (2013) located inside the cabinet (2); a second cylinder (2005) is fixedly installed on the inner side wall of the cabinet (2), and the output end of the second cylinder (2005) is fixed to the piston rod (2004) via a first connecting bracket (2006).

8. A license plate laminating machine as described in claim 7, characterized in that: A blower cover (15) is installed on the front side of the cabinet (2), and the blower cover (15) faces the uncoated plate (17). The blower cover (15) is connected to the first connecting pipe (2011) through the connecting port (2012).

9. A license plate laminating machine as described in claim 7, characterized in that: It also includes an oil injection mechanism (22), which includes a support base (2201) fixedly installed on the inner wall of the bottom of the cabinet (2); an oil cylinder (2202) is fixedly installed on the top of the support base (2201); a second piston (2203) is connected inside the oil cylinder (2202), and a first pressure column (2204) is fixedly installed on the side wall of the second piston (2203). A pressing seat (2014) is provided on one side of the first pressure column (2204), and the pressing seat (2014) is connected to the piston rod. (2004) Fixed, the oil cylinder (2202) is provided with a first spring (2205), and a third one-way valve (2206) and a fourth one-way valve (2207) are installed at one end of the oil cylinder (2202). The third one-way valve (2206) is connected to an oil storage tank (2210) through an oil extraction pipe (2208). The fourth one-way valve (2207) is connected to a cavity opened in a vertical slide rail (2102) through an oil injection pipe (2209). The vertical slide rail (2102) has multiple oil outlet holes along its length.

10. A license plate laminating machine as described in claim 9, characterized in that: The oil storage tank (2210) is located below the vertical slide rail (2102), and the top of the oil storage tank (2210) is provided with an oil filling hole.

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