Surface cleaning device for protective film production

Abstract

The utility model discloses a surface cleaning device for protective film production, and relates to the technical field of protective film production. The cleaning device comprises a cleaning box, a cleaning assembly is arranged on one side of the interior of the cleaning box, and an adjusting assembly is further arranged on the other side of the interior of the cleaning box. Mounting columns in the cleaning assembly are fixedly connected to the periphery of the bottom of one side in the cleaning box, a driving roller is rotationally connected to the lower portion between the front-back adjacent mounting columns, and first sliding grooves are formed in the upper portions of the end faces of the mounting columns in the vertical direction. The pressing roller is driven by the lifting plate and the movable rod to move relative to the driving roller, the distance between the driving roller and the pressing roller is adjusted, the problem that an existing cleaning device is inconvenient to clean protective films with different thicknesses is solved, the mounting rod and the rotating seat are driven by the rack to rotate, and the cleaning efficiency is improved. And the U-shaped frame drives the lower adjusting roller and the upper adjusting roller to rotate, and the problem that an existing cleaning device is inconvenient to adjust the inclination angle of the protective film is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of protective film production, and particularly relates to a surface cleaning device for protective film production. Background Technique

[0002] A protective film refers to a film-like material that is attached to the surface of an object and plays a protective role for the object. According to its raw materials, it can be roughly divided into PET protective films, PC protective films, silicone protective films, etc. The production process of the protective film generally includes five steps: material selection, coating, drying, die-cutting, and lamination. Among them, in the coating and lamination processes, in order to avoid the influence of dust adhered to the surface of the raw material on the processing effect, a surface cleaning device is usually used to clean the surface of the raw material.

[0003] A surface cleaning device for protective film production disclosed in the existing document with the publication number of CN220195736U includes a bottom plate. On both sides of the bottom plate, a first side plate and a second side plate are respectively fixedly provided. On the relatively close sides of the first side plate and the second side plate, two groups of first rotating shafts are rotatably connected. On the outer walls of multiple first rotating shafts, conveying rollers are fixedly provided. The conveying rollers are located inside the bottom plate. On the relatively close sides of the first side plate and the second side plate, multiple groups of adjusting rollers are rotatably connected. Each group of adjusting rollers is located above the bottom plate. At the ends of multiple adjusting rollers, sleeve rings are rotatably connected. Multiple sleeve rings respectively penetrate through the first side plate and the second side plate and are connected and fixed thereto. On the relatively close sides of the first side plate and the second side plate, two first guiding rollers are rotatably connected in an up-and-down symmetric structure.

[0004] However, it still has the following drawbacks in actual use:

[0005] 1. In the above-mentioned surface cleaning device, two second rotating shafts are rotatably connected between the first side plate and the second side plate. A cleaning roller is fixedly provided on the circumferential outer wall of the second rotating shaft. Gears are fixedly provided at the outer ends of the second rotating shafts, and the two gears are meshed with each other. The protective film is immersed in the cleaning liquid for cleaning through the cleaning roller. However, during the use process, the distance between the two groups of cleaning rollers is fixed, resulting in that only protective films with the same thickness can be cleaned, and the scope of use is relatively narrow.

[0006] 2. In the above-mentioned surface cleaning device, multiple groups of adjusting rollers are rotatably connected on the relatively close sides of the first side plate and the second side plate. Sleeve rings are rotatably connected to the ends of the adjusting rollers, and the sleeve rings respectively penetrate through the first side plate and the second side plate and are connected and fixed thereto. The protective film is made to be inclined through the adjusting rollers, which is convenient for removing the residual cleaning liquid on the protective film. However, during the use process, the inclination angle of the adjusting rollers is fixed, resulting in inconvenience in adjusting the inclination angle of the adjusting rollers according to requirements.

[0007] Therefore, we provide a surface cleaning device for protective film production to solve the above problems. Utility Model Content

[0008] The utility model aims to provide a surface cleaning device for protective film production, which drives a pressure roller to move relative to a driving roller through a lifting plate and a movable rod, and adjusts the spacing between the driving roller and the pressure roller, thereby solving the problem that the existing cleaning device is inconvenient for cleaning protective films of different thicknesses, and drives the mounting rod and the rotating seat to rotate through a rack, so that the U-shaped frame drives the lower adjusting roller and the upper adjusting roller to rotate, thereby solving the problem that the existing cleaning device is inconvenient for adjusting the inclination angle of the protective film.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model is a surface cleaning device for protective film production, comprising a cleaning box, a cleaning component is arranged on one side of the interior of the cleaning box, and an adjustment component is arranged on the other side of the interior of the cleaning box;

[0011] The mounting columns in the cleaning assembly are respectively fixedly connected to the bottom of one side of the cleaning box, and a driving roller is rotatably connected below the front and rear adjacent mounting columns. A slide groove is vertically opened above the end surface of the mounting column, and a slider is vertically movably connected inside the slide groove. A pressure roller is rotatably connected between the front and rear adjacent sliders, and a movable rod is welded on the top of the slider, and the top of the movable rod movably passes through the inner top of the slide groove and is welded with a connecting plate, and a lifting plate is fixedly connected above the connecting plate;

[0012] The mounting rod in the adjustment assembly is connected to the other side of the cleaning box by rotatable transversely, and a plurality of sets of rotating seats are sleeved at equal intervals along the transverse direction on the outer wall of the mounting rod. A U-shaped frame is welded on the top of the rotating seat, and a lower adjusting roller and an upper adjusting roller are movably connected to the lower and upper parts of the U-shaped frame respectively. One end of the mounting rod rotates through the outer wall of one side of the cleaning box and is sleeved with a gear. A rack is meshed and connected below the gear, and the rack is movably connected to the lower part of the outer wall of one side of the cleaning box through a lead screw along the longitudinal direction.

[0013] The utility model is further configured as follows: a rotating shaft is welded to the front end of the driving roller, and the end of the rotating shaft away from the driving roller rotates in sequence and passes through the mounting column located in the front and the lower front end surface of the cleaning box and is sleeved with a driven wheel; a driving motor 1 is fixedly connected to an outer wall of one side of the cleaning box through a motor frame 1, a driving wheel is sleeved on the output shaft of the driving motor 1, and the driving wheel is connected to the driven wheel through a belt 1.

[0014] The utility model is further configured as follows: a partition is fixedly connected to the inner center of the cleaning box, a mounting seat is welded to the front and rear ends of the upper surface of the partition, and guide rollers are rotatably connected between adjacent mounting seats.

[0015] The utility model is further configured as follows: a fixing plate is fixedly connected to one side of the top of the cleaning box in the longitudinal direction, a hydraulic cylinder is fixedly connected to the upper surface of the fixing plate, and a piston shaft of the hydraulic cylinder movably penetrates the fixing plate and is fixedly connected to the upper surface of the lifting plate.

[0016] The utility model is further configured as follows: the other end of the mounting rod is rotatably connected to a second mounting seat, and the bottom of the second mounting seat is fixedly connected to the bottom of the other side of the interior of the cleaning box.

[0017] The utility model is further configured as follows: a slide groove 2 is opened on the vertical support arm at the front end of the U-shaped frame, a threaded rod is rotatably connected inside the slide groove 2, the top end of the threaded rod rotates through the top of the slide groove 2 and is fixedly connected with a knob, a slider 3 is threadedly sleeved on the outer wall of the threaded rod, and the front end of the upper adjusting roller is rotatably connected to the rear end surface of the slider 3.

[0018] The utility model is further configured as follows: a double-groove synchronous wheel is sleeved on the outer wall of the threaded rod located outside the second slide groove, the double-groove synchronous wheels are located between the U-shaped frame and the knob, and the double-groove synchronous wheels are connected through a second belt transmission.

[0019] The utility model is further configured as follows: a slide groove three is provided on the vertical support arm at the rear end of the U-shaped frame, a slide rod is fixedly connected inside the slide groove three, a slide block four is slidably sleeved on the outer wall of the slide rod, and the rear end of the upper adjusting roller is rotatably connected to the front end surface of the slide block four.

[0020] The utility model is further configured as follows: the front and rear ends of the outer wall of one side of the cleaning box are fixedly connected to the bearing seat, both ends of the screw rod are rotatably connected to the inside of the bearing seat, the front end of the outer wall of one side of the cleaning box is fixedly connected to the driving motor 2 through the motor frame 2, the output shaft of the driving motor 2 is fixedly connected to the front end of the screw rod, and a slider 2 is threadedly sleeved on the outer wall of the screw rod, and the top of the slider 2 is welded to the bottom of the rack.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model sets a cleaning component, drives the lifting plate to move up and down through a hydraulic cylinder, so that the lifting plate drives the movable rod and the slider to move up and down through the connecting plate, and then drives the pressure roller to move up and down relative to the driving roller through the slider, thereby adjusting the distance between the pressure roller and the driving roller, making it convenient for protective films of different thicknesses to move inside the cleaning box, and convenient for cleaning protective films of different thicknesses, and having a wide range of uses.

[0023] 2. The utility model realizes the adjustment of the inclination angle of the protective film between the lower adjusting roller and the upper adjusting roller by setting an adjusting component. When the second driving motor is started, the second driving motor drives the rack to move through the lead screw, and the rack drives the mounting rod and the rotating seat to rotate through the gear, so that the U-shaped frame drives the lower adjusting roller and the upper adjusting roller to rotate, facilitating the adjustment of the inclination angle of the protective film according to requirements and removing the cleaning liquid remaining on the protective film.

[0024] Of course, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic diagram of the overall structure of a surface cleaning device for the production of protective films;

[0027] Figure 2 It is a schematic diagram of the partition board of the present utility model;

[0028] Figure 3 It is a schematic diagram of the cleaning component of the present utility model;

[0029] Figure 4 It is a schematic diagram of the mounting column of the present utility model;

[0030] Figure 5 It is an installation diagram between the movable rod and the lifting plate of the present utility model;

[0031] Figure 6 It is a schematic diagram of the adjusting component of the present utility model;

[0032] Figure 7 It is an installation diagram between the mounting rod and the rack of the present utility model;

[0033] Figure 8 It is an exploded view of the structure of the U-shaped frame of the present utility model.

[0034] In the drawings, the list of components represented by each reference numeral is as follows:

[0035] 100 - Cleaning box, 101 - Partition board, 102 - Mounting seat 1, 103 - Guide roller, 200 - Cleaning component, 201 - Mounting column, 201a - Slide groove 1, 202 - Driving roller, 202a - Rotating shaft, 202b - Driven wheel, 203 - Pressing roller, 203a - Slide block 1, 204 - Movable rod, 204a - Connecting plate, 205 - Lifting plate, 205a - Fixed plate, 205b - Hydraulic cylinder, 206 - Driving motor 1, 206a - Motor frame 1, 206b - Driving wheel, 206c - Belt 1, 300 - Adjusting component, 301 - Mounting rod, 301a - Gear, 301b - Mounting seat 2, 302 - Rotating seat, 303 - U - shaped frame, 303a - Slide groove 2, 303b - Slide groove 3, 304 - Lower adjusting roller, 305 - Upper adjusting roller, 306 - Lead screw, 306a - Bearing seat, 306b - Motor frame 2, 306c - Driving motor 2, 307 - Rack, 307a - Slide block 2, 308 - Threaded rod, 308a - Slide block 3, 308b - Knob, 308c - Double - groove synchronous wheel, 308d - Belt 2, 309 - Slide rod, 309a - Slide block 4. Detailed implementation manner

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the protection scope of the present utility model.

[0037] Embodiment 1

[0038] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown in

[0039] Specifically, the mounting columns 201 are respectively fixedly connected to the four corners of the bottom on one side inside the cleaning box 100. A driving roller 202 is rotatably connected below between the adjacent front and rear mounting columns 201. A first chute 201a is vertically formed above the end face of each mounting column 201. A first slider 203a is vertically movably connected inside each first chute 201a. A pressing roller 203 is rotatably connected between the adjacent front and rear first sliders 203a. A movable rod 204 is welded to the top of each first slider 203a. The top ends of the movable rods 204 movably penetrate through the inner top of the first chute 201a and are welded to a connecting plate 204a. An elevating plate 205 is fixedly connected above the connecting plate 204a. The mounting columns 201 are provided for mounting the driving roller 202 and the pressing roller 203 inside the cleaning box 100. The driving roller 202 is provided for driving the protective film to move inside the cleaning box 100. The pressing roller 203 is provided for ensuring that the driving roller 202 drives the protective film to move. The first slider 203a is provided for vertically movably mounting the pressing roller 203 on the mounting column 201. The movable rod 204 is provided for driving the first slider 203a to move. The connecting plate 204a is provided for connecting the movable rod 204 and the elevating plate 205. The elevating plate 205 is provided for driving the movable rod 204 to move.

[0040] Further, a partition 101 is fixedly connected to the central position inside the cleaning box 100. A first mounting seat 102 is welded to the front and rear ends of the upper surface of the partition 101. A guiding roller 103 is rotatably connected between the adjacent first mounting seats 102;

[0041] A rotating shaft 202a is welded to the front end of the driving roller 202. The end of the rotating shaft 202a away from the driving roller 202 sequentially rotatably penetrates through the front mounting column 201 and the lower part of the front end face of the cleaning box 100 and is sleeved with a driven wheel 202b. A first driving motor 206 is fixedly connected to the outer wall of one side of the cleaning box 100 through a first motor bracket 206a. A driving wheel 206b is sleeved on the output shaft of the first driving motor 206. The driving wheel 206b is in transmission connection with the driven wheel 202b through a first belt 206c. When the first driving motor 206 is started, the output shaft of the first driving motor 206 drives the driving wheel 206b to rotate synchronously. And the driving wheel 206b drives the first belt 206c to move synchronously during rotation, and drives the driven wheel 202b to rotate through the movement of the first belt 206c, so that the driven wheel 202b drives the driving roller 202 to rotate through the rotating shaft 202a;

[0042] A fixing plate 205a is longitudinally fixedly connected to one side of the top of the cleaning box 100. A hydraulic cylinder 205b is fixedly connected to the upper surface of the fixing plate 205a. The piston rod of the hydraulic cylinder 205b movably penetrates through the fixing plate 205a and is fixedly connected to the upper surface of the elevating plate 205.

[0043] The operation process of this embodiment is as follows: First, adjust the distance between the driving roller 202 and the pressing roller 203 according to the thickness of the protective film. Start the hydraulic cylinder 205b, and the piston shaft of the hydraulic cylinder 205b drives the lifting plate 205 to move up and down. The lifting plate 205 drives the movable rod 204 to move synchronously through the connecting plate 204a, and applies an external force to the slider 203a through the movable rod 204, so that the slider 203a drives the pressing roller 203 to move up and down relative to the driving roller 202, realizing the movement of the distance between the driving roller 202 and the pressing roller 203. Then, place the cleaning liquid in the cleaning box 100 and place the protective film between the driving roller 202 and the pressing roller 203. Finally, start the first driving motor 206, and the output shaft of the first driving motor 206 drives the driving wheel 206b to rotate synchronously. Under the driving action of the first belt 206c, the driven wheel 202b drives the driving roller 202 to rotate through the rotating shaft 202a, and the rotation of the driving roller 202 makes the protective film move inside the cleaning box 100, realizing the surface cleaning work of the protective film.

[0044] Embodiment 2

[0045] Please refer to Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As shown in, it is the second embodiment of the present utility model. This embodiment is based on the previous embodiment, but different from the previous embodiment is that: on the other side inside the cleaning box 100, an adjusting component 300 is further provided, and the adjusting component 300 includes a mounting rod 301, a rotating seat 302, a U-shaped frame 303, a lower adjusting roller 304, an upper adjusting roller 305, a lead screw 306 and a rack 307. The lead screw 306 drives the rack 307 to move, and the rack 307 drives the mounting rod 301 to rotate, so that the mounting rod 301 drives the U-shaped frame 303 to rotate, solving the problem that the existing cleaning device is not convenient to adjust the inclination angle of the protective film.

[0046] Specifically, the installation rod 301 is rotatably connected transversely to the other side inside the cleaning box 100. A plurality of rotating seats 302 are sleeved on the outer wall of the installation rod 301 at equal intervals transversely. At the tops of the rotating seats 302, U-shaped frames 303 are welded. A lower adjusting roller 304 and an upper adjusting roller 305 are respectively movably connected to the lower and upper parts inside the U-shaped frame 303. One end of the installation rod 301 rotatably penetrates through one side outer wall of the cleaning box 100 and is sleeved with a gear 301a. A rack 307 is meshed and connected below the gear 301a. The rack 307 is movably connected longitudinally to the lower part of one side outer wall of the cleaning box 100 through a lead screw 306. The settings of the installation rod 301 and the rotating seats 302 realize the rotational installation of the U-shaped frame 303 inside the cleaning box 100. The setting of the gear 301a is used to drive the installation rod 301 to rotate. The setting of the U-shaped frame 303 is used to move the lower adjusting roller 304 and the upper adjusting roller 305. The settings of the lower adjusting roller 304 and the upper adjusting roller 305 are used to guide the movement of the protective film inside the cleaning box 100 to make it inclined. The setting of the lead screw 306 is used to drive the rack 307 to move, and the setting of the rack 307 is used to drive the gear 301a to rotate.

[0047] Further, the other end of the installation rod 301 is rotatably connected to a second installation seat 301b, and the bottom of the second installation seat 301b is fixedly connected to the bottom of the other side inside the cleaning box 100;

[0048] On the vertical arm at the front end of the U-shaped frame 303, a second chute 303a is provided. Inside the second chute 303a, a threaded rod 308 is rotatably connected. The top end of the threaded rod 308 rotatably penetrates through the top of the second chute 303a and is fixedly connected to a knob 308b. A slider 308a is threadedly sleeved on the outer wall of the threaded rod 308. The front end of the upper adjusting roller 305 is rotatably connected to the rear end face of the slider 308a. By rotating the knob 308b, the knob 308b drives the threaded rod 308 to rotate synchronously. And under the action of the threaded connection between the threaded rod 308 and the slider 308a, the slider 308a drives the upper adjusting roller 305 to move relative to the lower adjusting roller 304, realizing the adjustment of the distance between the lower adjusting roller 304 and the upper adjusting roller 305;

[0049] A double-groove synchronous pulley 308c is sleeved on the outer wall of the threaded rod 308 outside the second chute 303a. The double-groove synchronous pulleys 308c are both located between the U-shaped frame 303 and the adjacent knob 308b, and the double-groove synchronous pulleys 308c are drivingly connected by a second belt 308d;

[0050] On the vertical arm at the rear end of the U-shaped frame 303, a third chute 303b is provided. Inside the third chute 303b, a slide bar 309 is fixedly connected. A slider 309a is slidably sleeved on the outer wall of the slide bar 309. The rear end of the upper adjusting roller 305 is rotatably connected to the front end face of the slider 309a;

[0051] At the front and rear ends of the outer wall on one side of the cleaning box 100, bearing seats 306a are fixedly connected. Both ends of the lead screw 306 are rotatably connected inside the bearing seats 306a. At the front end of the outer wall on one side of the cleaning box 100, a second driving motor 306c is fixedly connected through a second motor bracket 306b. The output shaft of the second driving motor 306c is fixedly connected to the front end of the lead screw 306. A second slider 307a is threadedly sleeved on the outer wall of the lead screw 306, and the top of the second slider 307a is welded to the bottom of the rack 307.

[0052] The remaining structures are the same as those in Embodiment 1.

[0053] The operation process of this embodiment is as follows: Start the second driving motor 306c. The output shaft of the second driving motor 306c drives the lead screw 306 to rotate. During the rotation of the lead screw 306, the second slider 307a and the rack 307 are driven to move longitudinally, and the movement of the rack 307 drives the gear 301a to rotate, so that the gear 301a drives the rotating seat 302 to rotate through the mounting rod 301. Furthermore, the U-shaped frame 303 drives the lower adjusting roller 304 and the upper adjusting roller 305 to rotate, realizing the adjustment of the inclination angles of the lower adjusting roller 304 and the upper adjusting roller 305, and further realizing the adjustment of the inclination angle of the protective film.

[0054] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0055] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present invention, so that those skilled in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A surface cleaning device for protective film production, comprising a cleaning box (100), characterized in that: A cleaning assembly (200) is disposed on one side of the interior of the cleaning box (100), and an adjustment assembly (300) is also disposed on the other side of the interior of the cleaning box (100); The mounting columns (201) in the cleaning assembly (200) are respectively fixedly connected to the bottom of one side of the cleaning box (100), and a driving roller (202) is rotatably connected below the front and rear adjacent mounting columns (201), a slide groove (201a) is vertically provided above the end surface of each mounting column (201), and a slider (203a) is vertically movably connected inside the slide groove (201a), a pressure roller (203) is rotatably connected between the front and rear adjacent sliders (203a), and a movable rod (204) is welded to the top of the slider (203a), the top of the movable rod (204) movably passes through the inner top of the slide groove (201a) and is welded to a connecting plate (204a), and a lifting plate (205) is fixedly connected above the connecting plate (204a); The mounting rod (301) in the adjustment assembly (300) is rotatably connected to the other side of the interior of the cleaning box (100) in the transverse direction, and a plurality of sets of rotating seats (302) are sleeved at equal intervals in the transverse direction on the outer wall of the mounting rod (301), the tops of the rotating seats (302) are welded with U-shaped frames (303), and the lower and upper parts of the interior of the U-shaped frames (303) are movably connected with a lower adjustment roller (304) and an upper adjustment roller (305), respectively, one end of the mounting rod (301) rotates through the outer wall of one side of the cleaning box (100) and is sleeved with a gear (301a), and a rack (307) is meshedly connected to the lower part of the outer wall of one side of the cleaning box (100), and the rack (307) is movably connected to the lower part of the outer wall of one side of the cleaning box (100) in the longitudinal direction through a screw rod (306).

2. A surface cleaning device for protective film production according to claim 1, characterized in that: A rotating shaft (202a) is welded to the front end of the driving roller (202), and one end of the rotating shaft (202a) away from the driving roller (202) rotates in sequence to penetrate the mounting column (201) located in the front and the lower part of the front end surface of the cleaning box (100) and is sleeved with a driven wheel (202b); a driving motor (206) is fixedly connected to an outer wall of one side of the cleaning box (100) via a motor frame (206a), and a driving wheel (206b) is sleeved on the output shaft of the driving motor (206), and the driving wheel (206b) is transmission-connected to the driven wheel (202b) via a belt (206c).

3. A surface cleaning device for protective film production according to claim 2, characterized in that: A partition (101) is fixedly connected to the inner center of the cleaning box (100), and mounting seats (102) are welded to the front and rear ends of the upper surface of the partition (101), and guide rollers (103) are rotatably connected between adjacent mounting seats (102).

4. A surface cleaning device for protective film production according to claim 1, characterized in that: A fixing plate (205a) is fixedly connected to one side of the top of the cleaning box (100) in the longitudinal direction, and a hydraulic cylinder (205b) is fixedly connected to the upper surface of the fixing plate (205a), and the piston shaft of the hydraulic cylinder (205b) movably passes through the fixing plate (205a) and is fixedly connected to the upper surface of the lifting plate (205).

5. A surface cleaning device for protective film production according to claim 1, characterized in that: The other end of the mounting rod (301) is rotatably connected to a second mounting seat (301b), and the bottom of the second mounting seat (301b) is fixedly connected to the bottom of the other side of the inside of the cleaning box (100).

6. A surface cleaning device for protective film production according to claim 1, characterized in that: A second slide groove (303a) is provided on the vertical support arm at the front end of the U-shaped frame (303), and a threaded rod (308) is rotatably connected inside the second slide groove (303a), the top end of the threaded rod (308) rotates through the top of the second slide groove (303a) and is fixedly connected to a knob (308b), and a slider three (308a) is threadedly sleeved on the outer wall of the threaded rod (308), and the front end of the upper adjusting roller (305) is rotatably connected to the rear end surface of the slider three (308a).

7. A surface cleaning device for protective film production according to claim 6, characterized in that: The threaded rod (308) is sleeved with a double-groove synchronous wheel (308c) on the outer wall of the outer side of the second slide groove (303a), and the double-groove synchronous wheel (308c) is located between the U-shaped frame (303) and the knob (308b), and the double-groove synchronous wheels (308c) are connected by a second belt (308d).

8. A surface cleaning device for protective film production according to claim 6, characterized in that: A slide groove three (303b) is provided on the vertical support arm at the rear end of the U-shaped frame (303), and a slide rod (309) is fixedly connected inside the slide groove three (303b), a slide block four (309a) is slidably sleeved on the outer wall of the slide block (309), and the rear end of the upper adjustment roller (305) is rotatably connected to the front end surface of the slide block four (309a).

9. A surface cleaning device for protective film production according to claim 1, characterized in that: The front and rear ends of the outer wall of one side of the cleaning box (100) are fixedly connected to the bearing seat (306a), and both ends of the screw rod (306) are rotatably connected to the inside of the bearing seat (306a). The front end of the outer wall of one side of the cleaning box (100) is fixedly connected to the second drive motor (306c) through the second motor frame (306b), and the output shaft of the second drive motor (306c) is fixedly connected to the front end of the screw rod (306). The outer wall of the screw rod (306) is threadedly sleeved with a second slider (307a), and the top of the second slider (307a) is welded to the bottom of the rack (307).

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