Protective film surface steam cleaning device for release film production

Abstract

The invention relates to the technical field of cleaning equipment, in particular to a protective film surface steam cleaning device for release film production, which comprises a base, a conveying device arranged at the top of the base and a cleaning box fixedly connected to the top of the base, and a spraying structure for spraying two surfaces of a protective film is arranged in the cleaning box. A collecting structure used for collecting and conveying condensate water is arranged in the cleaning box, and a steam generating device and a recycling assembly which are in linkage with the spraying structure and the collecting structure are arranged outside the cleaning box. According to the protective film surface steam cleaning device used in release film production, through linkage arrangement of the cam and the sliding plate, dynamic adjustment of the distance between the spray pipes and flexible change of the angle are achieved, it is ensured that the two faces of a protective film are fully covered with steam, and the stain removal rate is remarkably increased; and meanwhile, by means of sliding of the sliding plate, collection and quantitative conveying of condensate water are accurately controlled, and steam and residual water generated in the cleaning process are effectively recycled.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cleaning equipment, in particular to a steam cleaning device for the surface of a protective film in the production of a release film. BACKGROUND

[0002] A release film is a functional film with differential surface energy, and its core characteristic is that it does not produce adhesion or only maintains slight adhesion when in contact with a specific material under defined conditions, and is widely used in the fields of electronics, optics, packaging and other high-precision manufacturing. In the production process of the release film, the protective film serves as a temporary protective layer covering the surface of the release film, and is used to avoid scratches, pollution and other problems in the production, transmission and storage processes, and the surface cleanliness of the protective film directly determines the quality stability of the final product of the release film - if impurities are left on the surface of the protective film, it may cause uneven coating of the release film, abnormal release force, and even product defects in the downstream processing link.

[0003] In the current industry, steam cleaning technology is generally used for pretreatment of the surface of the protective film, and existing steam cleaning devices mostly use fixed or simple rotary nozzles, which are difficult to adapt to the tension fluctuation in the transmission process of the protective film, especially in the edge area of the film material, and blind cleaning areas are easily formed. The condensed water left on the film surface after steam cleaning may carry the unshed impurities and reattach them, and the dripping condensed water is easy to contaminate the transmission components of the equipment and affect the precision of the equipment, so a steam cleaning device for the surface of the protective film in the production of a release film is proposed to solve the above problems. SUMMARY

[0004] In view of the deficiencies of the prior art, in order to clean uniformly and completely, the application provides a steam cleaning device for the surface of a protective film in the production of a release film, which has the advantages of efficient and stable cleaning, improved stain removal rate and the like, and solves the problems of insufficient cleaning coverage and secondary pollution in the prior art.

[0005] The application provides a steam cleaning device for the surface of a protective film in the production of a release film, which adopts the following technical scheme: A steam cleaning device for the surface of a protective film in the production of a release film, comprising a base, a conveying device arranged on the top of the base and a cleaning box fixedly connected to the top of the base, wherein the conveying device comprises an unwinding roller, a winding roller and a limiting roller, one side of the cleaning box is provided with a conveying port, the inside of the cleaning box is provided with a spraying structure for spraying the two surfaces of the protective film, the inside of the cleaning box is provided with a collection structure for collecting and conveying condensed water, and the outside of the cleaning box is provided with a steam generating device and a recovery assembly which are linked with the spraying structure and the collection structure, respectively. The spraying structure comprises a U-shaped frame arranged in the cleaning box, a rotating pipe is arranged in the U-shaped frame, one end of the rotating pipe is fixedly connected with a spray pipe, a plurality of inclined spray holes are arranged on the surface of the spray pipe, the other end of the rotating pipe is rotatably connected with a shaft sleeve, and one side of the U-shaped frame is rotatably connected with a roller. The collecting structure comprises a collecting box and a mounting cylinder fixedly connected to the inner bottom wall of the cleaning box, a valve plate is rotatably connected to the inside of the mounting cylinder, a gear is fixedly connected to the outside of the valve plate, a toothed plate is meshingly connected to the lower surface of the gear, a connecting rod is fixedly connected to one side of the toothed plate, and a first communication pipe is fixedly and communicatively arranged between the collecting box and the mounting cylinder.

[0006] Optionally, the number of the U-shaped frames, the rotating pipes, the spray pipes, the inclined spray holes, the shaft sleeves and the rollers is two groups, the two groups of U-shaped frames and the two groups of rotating pipes are oppositely arranged, and the number of the inclined spray holes is multiple.

[0007] The above-mentioned optional scheme has the beneficial effects that: the two groups of U-shaped frames and the two groups of spray pipes are oppositely arranged, so that the upper and lower surfaces of the protective film can be sprayed with steam at the same time, and double-sided synchronous cleaning is realized. The plurality of inclined spray holes arranged on the surface of the spray pipe expand the steam spraying coverage range, so that dead angles are avoided. The rotating pipe cooperates with the shaft sleeve to ensure stable steam delivery, and the linkage adjustment of the roller is improved, so that the cleaning uniformity is improved.

[0008] Optionally, the other side of each of the two groups of U-shaped frames is fixedly connected with a connecting lug, a limiting rod is arranged in the inside of the connecting lug, and the limiting rod is fixedly connected to the inside of the cleaning box.

[0009] The above-mentioned optional scheme has the beneficial effects that: the limiting rod is arranged to penetrate the connecting lug of the two groups of U-shaped frames, so that accurate guidance is provided for the movement of the spraying structure, and the movement of the spraying structure is limited to be along the fixed track.

[0010] Optionally, the steam generating device comprises a steam generator and a mounting frame fixedly connected to the outside of the cleaning box, a double-shaft motor is fixedly installed in the inside of the mounting frame, a throat pipe is fixedly installed on the inner bottom wall of the mounting frame, expansion pipes are fixedly and communicatively arranged at both ends of the throat pipe, a vortex blade is rotatably connected to the inside of the left expansion pipe, and a suction pipe is fixedly and communicatively arranged between the throat pipe and the steam generator.

[0011] The above-mentioned optional scheme has the beneficial effects that: the steam generator is connected to the suction pipe and the throat pipe, the vortex blade in the left expansion pipe is rotated to form negative pressure, so that the steam extraction and transportation efficiency is accelerated, the double-shaft motor provides power for the vortex blade, and the steam is continuously and stably supplied to the spraying structure.

[0012] Optionally, a filter screen is detachably installed in the inside of the right expansion pipe, and a three-way hose is fixedly connected and communicated between the end of the right expansion pipe away from the throat pipe and the two groups of shaft sleeves.

[0013] The beneficial effect of the above optional scheme is that the detachable filter screen in the right expansion pipe can filter impurities in the steam, avoiding secondary pollution caused by the attachment of impurities on the surface of the protective film, and the three-way hose precisely divides the steam into the two groups of shaft sleeves, ensuring the balance of steam supply of the two groups of spray pipes.

[0014] Optionally, a transmission wheel is fixedly connected to one end of the output shaft of the double-shaft motor, a driven wheel is fixedly connected to the outside of the vortex blade, a synchronous belt is drivingly connected to the outside of the transmission wheel and the driven wheel, and a cam is fixedly connected to the other end of the output shaft of the double-shaft motor, and a transmission structure is further arranged on the outside of the cam.

[0015] The beneficial effect of the above optional scheme is that the vortex blade is driven by the transmission wheel and the synchronous belt at one end of the double-shaft motor, ensuring efficient steam delivery, and the other end is driven by the cam linkage transmission structure.

[0016] Optionally, the transmission structure comprises a fixed plate fixedly connected to the outside of the cleaning box, a limiting shaft fixedly connected to one side of the fixed plate, a sliding plate slidingly connected to the outside of the limiting shaft, and the outside of the sliding plate abuts against the cam, the sliding plate is slidingly connected to the outside of the cleaning box, the inside of the sliding plate is provided with two groups of oblique grooves matched with rollers, the rollers are rollingly connected to the inside of the oblique grooves, the inside of the cleaning box is provided with a transmission opening matched with the rollers, a sealing gasket is fixedly installed in the inside of the transmission opening, and the two groups of oblique grooves are horizontally arranged in a spread-finger shape.

[0017] The beneficial effect of the above optional scheme is that the two groups of oblique grooves in a spread-finger shape of the sliding plate are rollingly matched with the rollers, so that the two groups of U-shaped frames can be driven to synchronously approach or move away, the distance between the spray pipe and the protective film is dynamically adjusted, and the cleaning demand of the protective film with different thicknesses is adapted.

[0018] Optionally, a return spring is fixedly connected between the fixed plate and the sliding plate, the return spring is connected around the outside of the limiting shaft, a first conveying pipe is fixedly connected and communicated between the throat pipe and the mounting cylinder, and the connecting rod is fixedly connected to the bottom side of the sliding plate.

[0019] The beneficial effect of the above optional scheme is that the return spring on the outside of the limiting shaft can precisely reset the sliding plate in the gap of the cam rotation, ensuring the repeatability and accuracy of the spray distance adjustment.

[0020] Optionally, the recycling assembly comprises a U-shaped pipe fixedly connected to the inside of the cleaning tank and a piston cylinder fixed to the outer wall of the cleaning tank, the inside of the piston cylinder is slidingly connected with a plug plate, the outside of the plug plate is fixedly connected with a transmission rod extending to the outside of the piston cylinder, and the end of the transmission rod away from the plug plate is fixedly connected with the outside of the sliding plate.

[0021] The beneficial effect of the above optional scheme is that the sliding action of the sliding plate is transmitted to the piston cylinder through the transmission rod, so that the plug plate slides synchronously with the cleaning action, and active recovery of residual steam and condensed water is realized.

[0022] Optionally, a plurality of suction nozzles are fixedly connected to the inner wall of the U-shaped pipe, a second conveying pipe is fixedly connected between the piston cylinder and the collection tank, and a second communication pipe is fixedly connected between the piston cylinder and the U-shaped pipe.

[0023] The beneficial effect of the above optional scheme is that the piston cylinder is connected with the U-shaped pipe through the second communication pipe and is connected with the collection tank through the second conveying pipe, forming a closed loop recycling, and realizing concentrated recovery and reuse of condensed water.

[0024] In summary, the present application has at least one of the following beneficial technical effects: 1. In the present application, when the cam rotates, the sliding plate is pushed to slide, the splayed slots of the sliding plate cooperate with the rollers of the spraying structure, so that the two groups of U-shaped frames move synchronously towards or away from the protective film along the limiting rods, the distance between the spray pipes is dynamically adjusted, the multiple splayed nozzles of the spray pipes are adjusted in angle by the rotation of the rotating pipe, and full coverage of steam on both sides of the protective film is realized, so that there is no cleaning dead angle and the stain removal rate is improved.

[0025] 2. In the present application, when the sliding plate slides, the connecting rod is moved, the connecting rod drives the tooth plate to move, the tooth plate drives the valve plate to rotate through the gear, the connection between the mounting cylinder and the collection tank is controlled, the rotation angle of the valve plate can be accurately controlled, so that the condensed water is reabsorbed into the throat pipe under the action of negative pressure, mixed with steam and re-evaporated, and the collection and quantitative delivery of the condensed water are accurately controlled.

[0026] 3. In the present application, when the sliding plate slides, the transmission rod moves, the plug plate slides in the piston cylinder, a negative pressure is generated in the piston cylinder, the steam and residual moisture in the cleaning tank are sucked in through the suction nozzles on the second communication pipe and the U-shaped pipe, and then delivered to the collection tank through the second conveying pipe, so that the steam and residual moisture generated during the cleaning process can be effectively recovered, resource waste is reduced, and production cost is reduced.

[0027] 4. The application, by setting the double-shaft motor of the steam generating device as the core power, one end drives the vortex blade to rotate through the transmission wheel and the synchronous belt, negative pressure is generated in the throat pipe to extract the steam of the steam generator, the steam is transported to the spraying structure through the expansion pipe and the three-way hose, and the other end synchronously drives the spraying adjustment, condensate water collection and recovery action through the cam linkage transmission structure, so that the efficient and stable operation of the steam cleaning work on the surface of the protective film is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure perspective view of the application; Figure 2 is the structural section view of the cleaning box of the application; Figure 3 is the structural schematic view of the spraying structure of the application; Figure 4 is the structural schematic view of the steam generating device of the application; Figure 5 is the structural schematic view of the transmission structure of the application; Figure 6 is the structural schematic view of the spraying structure, the transmission structure, the collection structure and the recovery assembly of the application; Figure 7 is the structural schematic view of the collection structure of the application; Figure 8 is the structural section view of the collection structure of the application; Figure 9 is the structural schematic view of the recovery assembly of the application.

[0029] BRIEF DESCRIPTION OF DRAWINGS 1, base; 2, conveying equipment; 21, unwinding roller; 22, winding roller; 23, limiting roller; 3, cleaning box; 31, conveying port; 4, spraying structure; 41, L-shaped frame; 42, rotating pipe; 43, spray pipe; 44, oblique spray hole; 45, shaft sleeve; 46, roller; 47, connecting lug; 48, limiting rod; 5, steam generating device; 51, steam generator; 52, mounting frame; 53, double-shaft motor; 54, transmission wheel; 55, throat pipe; 56, expansion pipe; 57, vortex blade; 58, driven wheel; 59, synchronous belt; 510, cam; 511, three-way hose; 512, extraction pipe; 513, transmission structure; 5131, fixed plate; 5132, limiting shaft; 5133, sliding plate; 5134, return spring; 5135, oblique groove; 6, collection structure; 61, collection box; 62, mounting cylinder; 63, valve plate; 64, first communication pipe; 65, first conveying pipe; 66, gear; 67, connecting rod; 68, toothed plate; 7, recovery assembly; 71, U-shaped pipe; 72, suction nozzle; 73, piston cylinder; 74, plug plate; 75, transmission rod; 76, second conveying pipe; 77, second communication pipe. DETAILED DESCRIPTION

[0030] The accompanying drawings are incorporated in and constitute a part of this specification. Figures 1 to 9 The application is further described in detail.

[0031] The embodiment of the application discloses a kind of protective film surface steam cleaning devices for release film production, including base 1, the conveying equipment 2 of being set in the top of base 1 and the cleaning box 3 of being fixedly connected in the top of base 1, conveying equipment 2 includes pay-off roll 21, winding roll 22 and limiting roller 23, one side of cleaning box 3 is equipped with conveying port 31, the inside of cleaning box 3 is provided with the spraying structure 4 for spraying on both sides of protective film, the inside of cleaning box 3 is provided with the collection structure 6 for condensate collection and conveying, the outside of cleaning box 3 is provided with steam generating device 5 and recovery assembly 7 respectively with spraying structure 4, collection structure 6 linkage; Wherein, the top of base 1 is fixedly connected with the first support plate of two numbers, and the pay-off roll 21 is rotatably connected between the two first support plates;The top of base 1 is fixedly connected with the second support plate of two numbers, and the winding roll 22 is rotatably connected between the two second support plates, wherein one of the second support plates is fixedly installed with a driving motor outside, and the output shaft of the driving motor is fixedly connected with one end of the winding roll 22;The top of base 1 is also fixedly connected with the third support plate of two numbers, and the limiting roller 23 is rotatably connected between the two third support plates.In conveying equipment 2, the pay-off roll 21 releases protective film, the winding roll 22 realizes winding after cleaning, and the limiting roller 23 ensures that the protective film is stably conveyed in the cleaning box 3, which is automatically and continuously operated throughout the process, adapts to the scene demand of batch cleaning of protective film in release film production, and greatly improves production efficiency.

[0032] In order to clean evenly and completely, in the embodiment, the spraying structure 4 includes a type frame 41 arranged inside the cleaning box 3, a rotating pipe 42 is arranged through the inside of the type frame 41, one end of the rotating pipe 42 is fixedly connected with a spray pipe 43, the surface of the spray pipe 43 is provided with an inclined spray hole 44, the other end of the rotating pipe 42 is rotatably connected with a shaft sleeve 45, and one side of the type frame 41 is rotatably connected with a roller 46.

[0033] Wherein, the number of the type frame 41, the rotating pipe 42, the spray pipe 43, the inclined spray hole 44, the shaft sleeve 45 and the roller 46 is two groups, the two groups of type frame 41, rotating pipe 42 and spray pipe 43 are oppositely arranged, and the number of inclined spray hole 44 is multiple.Through the rotatable connection of rotating pipe 42 and shaft sleeve 45, it is ensured that the spray pipe 43 can be rotatably adjusted in the steam conveying process, the inclined spray hole 44 is used to realize inclined injection after pressurization to expand the steam coverage, eliminate the cleaning dead angle of traditional one-way spraying, and further improve the uniformity of steam and protective film surface contact.

[0034] Specifically, the other side of the two groups of the type frame 41 is fixedly connected with the connecting lug 47, the inside of the two groups of the connecting lug 47 is provided with the limiting rod 48 penetratingly, and the limiting rod 48 is fixedly connected to the inside of the cleaning box 3. The connecting lug 47 cooperates with the limiting rod 48 to limit the type frame 41 to move along the fixed track only, avoid the spray position deviation caused by vibration, and guarantee the long-term cleaning accuracy.

[0035] In order to accurately control the collection and quantitative delivery of the condensed water, in the embodiment, the collection structure 6 includes a collection box 61 fixedly connected to the inner bottom wall of the cleaning box 3 and a mounting cylinder 62, the inside of the mounting cylinder 62 is rotatably connected with a valve plate 63, the outside of the valve plate 63 is fixedly connected with a gear 66, the lower surface of the gear 66 is meshingly connected with a toothed plate 68, one side of the toothed plate 68 is fixedly connected with a connecting rod 67, and the collection box 61 and the mounting cylinder 62 are fixedly communicated with a first communication pipe 64. Through the linkage of the connecting rod 67 and the sliding plate 5133, when the sliding plate 5133 slides, the toothed plate 68 is driven to move and rotate the valve plate 63 in the mounting cylinder 62 by meshing with the gear 66, the delivery rhythm of the condensed water in the collection box 61 through the first communication pipe 64 is accurately controlled, and the quantitative delivery of the condensed water is realized.

[0036] In order to realize the automatic linkage of multiple actions such as uniform steam spraying, condensed water collecting and steam recycling, in the embodiment, the steam generating device 5 includes a steam generator 51 fixedly connected to the outside of the cleaning box 3 and a mounting bracket 52, the inside of the mounting bracket 52 is fixedly installed with a double-shaft motor 53, the inner bottom wall of the mounting bracket 52 is fixedly installed with a throat pipe 55, both ends of the throat pipe 55 are fixedly communicated with expansion pipes 56, the inside of the left expansion pipe 56 is rotatably connected with a vortex blade 57, and the throat pipe 55 and the steam generator 51 are fixedly communicated with a suction pipe 512. The steam generator 51 belongs to the conventional technology known to the public in the prior art, and therefore the specific structure and working principle thereof will not be described in detail herein.

[0037] Specifically, the inside of the right expansion pipe 56 is detachably installed with a filter screen, and the end of the right expansion pipe 56 away from the throat pipe 55 and the two groups of shaft sleeves 45 are fixedly communicated with a three-way hose 511.

[0038] It needs to be explained that one end of the output shaft of the double-shaft motor 53 is fixedly connected with a transmission wheel 54, the outside of the vortex blade 57 is fixedly connected with a driven wheel 58, the outside of the transmission wheel 54 and the driven wheel 58 is drivingly connected with a synchronous belt 59, the other end of the output shaft of the double-shaft motor 53 is fixedly connected with a cam 510, and the outside of the cam 510 is further provided with a transmission structure 513. The vortex blade 57 is driven to rotate by the transmission wheel 54 and the synchronous belt 59 through the one end of the output shaft of the double-shaft motor 53, a negative pressure is formed in the throat pipe 55, steam is efficiently extracted from the steam generator 51 through the extraction pipe 512, the steam flow is accelerated through the left expansion pipe 56, and after being purified by filtering impurities through the detachable filter screen on the right side, the steam is accurately shunted to the two groups of shaft sleeves 45 by the three-way hose 511, so as to ensure that the steam supply of the nozzle 43 is stable and free of impurity pollution.

[0039] It is worth mentioning that the transmission structure 513 includes a fixed plate 5131 fixedly connected to the outside of the cleaning box 3, a limiting shaft 5132 fixedly connected to one side of the fixed plate 5131, a sliding plate 5133 slidingly connected to the outside of the limiting shaft 5132, the outside of the sliding plate 5133 and the cam 510 abut, the sliding plate 5133 is slidingly connected to the outside of the cleaning box 3, the inside of the sliding plate 5133 is provided with two groups of oblique grooves 5135 matched with the rollers 46, the rollers 46 are rollingly connected to the inside of the oblique grooves 5135, and the inside of the cleaning box 3 is provided with a transmission opening matched with the rollers 46. A sealing gasket is fixedly installed in the transmission opening, the number of the oblique grooves 5135 is two groups, and the two groups of oblique grooves 5135 are horizontally arranged in a moustache shape. The sealing gasket is installed in the transmission opening of the cleaning box 3, which effectively blocks the steam leakage. The two groups of oblique grooves 5135 on the sliding plate 5133 are rollingly matched with the rollers 46 through the abutment of the cam 510 and the sliding plate 5133, so as to drive the two groups of moustache-shaped frames 41 to synchronously approach or move away, and dynamically adjust the distance between the nozzle 43 and the protective film.

[0040] In addition, a return spring 5134 is fixedly connected between the fixed plate 5131 and the sliding plate 5133, the return spring 5134 is connected around the outside of the limiting shaft 5132, a first conveying pipe 65 is fixedly and communicatively connected between the throat pipe 55 and the mounting cylinder 62, and the connecting rod 67 is fixedly connected to the bottom side of the sliding plate 5133. The return spring 5134 is arranged around the limiting shaft 5132 between the fixed plate 5131 and the sliding plate 5133, so as to ensure that the sliding plate 5133 is accurately reset in the gap of the cam 510 rotation, and to ensure the repeatability and stability of the transmission action.

[0041] To prevent steam leakage, in this embodiment, the recovery assembly 7 includes a U-shaped tube 71 fixedly connected inside the cleaning tank 3 and a piston cylinder 73 fixedly attached to the outer wall of the cleaning tank 3. A stopper plate 74 is slidably connected inside the piston cylinder 73, and a transmission rod 75 extending to the outside of the piston cylinder 73 is fixedly connected to the outside of the stopper plate 74. The end of the transmission rod 75 away from the stopper plate 74 is fixedly connected to the outside of the sliding plate 5133. Through the connection between the transmission rod 75 and the sliding plate 5133, the reciprocating motion of the sliding plate 5133 drives the stopper plate 74 to reciprocate within the piston cylinder 73, generating negative pressure and achieving automatic recovery of steam and residual moisture. This, combined with other actions of the device, improves the timeliness and effectiveness of the recovery.

[0042] Specifically, a plurality of suction nozzles 72 are fixedly connected to the inner wall of the U-shaped tube 71, a second delivery tube 76 is fixedly connected between the piston cylinder 73 and the collection box 61, and a second connecting tube 77 is fixedly connected between the piston cylinder 73 and the U-shaped tube 71.

[0043] Combined with appendix Figures 1 to 9 The working principle of the above embodiments is as follows: After the device is started, the drive motor of the conveying equipment 2 drives the take-up roller 22 to rotate, the unwind roller 21 releases the protective film, and the protective film is guided by the limit roller 23 to enter the interior of the cleaning box 3 from the conveying port 31 of the cleaning box 3. When the dual-shaft motor 53 starts, one output shaft drives the vortex blades 57 to rotate inside the left expansion tube 56 via the transmission wheel 54 and synchronous belt 59, creating a negative pressure inside the throat tube 55. Steam is then drawn from the steam generator 51 through the extraction tube 512. After passing through the throat tube 55 and the right expansion tube 56, the steam is split by the three-way flexible hose 511 to two sets of bushings 45, enters the rotating tube 42, and is delivered to the nozzle 43 in preparation for cleaning. When the dual-axis motor 53 starts, the output shaft at the other end drives the cam 510 to rotate, pushing the slide plate 5133 of the transmission structure 513 to slide along the limit shaft 5132. The return spring 5134 between the fixed plate 5131 and the slide plate 5133 adapts to the extension and retraction. When the roller 46 rolls to the lowest point of the figure-eight inclined groove 5135, the two sets of C-shaped frames 41 approach each other synchronously under the guidance of the limit rod 48, and the distance between the nozzles 43 decreases. At this time, the multiple inclined nozzles 44 on the surface of the nozzles 43 spray the protective film with close-range, highly concentrated rotating steam, enhancing the cleaning power. The inclined spray ensures no dead angle coverage. While the slide plate 5133 slides, the toothed plate 68 of the collection structure 6 moves through the connecting rod 67. The toothed plate 68 meshes with the gear 66, causing the valve plate 63 to rotate and open inside the mounting cylinder 62. The condensate collected by the collection box 61 flows into the mounting cylinder 62 through the first connecting pipe 64. Some steam assists in the condensate transport through the first conveying pipe 65 between the throat pipe 55 and the mounting cylinder 62, so as to realize the synchronous quantitative discharge and collection of condensate during cleaning. During the sliding of the sliding plate 5133, the plug plate 74 of the recycling assembly 7 is driven to slide in the piston cylinder 73 by the transmission rod 75. When the roller 46 is located at the lowest point of the eight-shaped oblique groove 5135, the piston cylinder 73 generates suction effect, the residual steam and condensed water in the cleaning tank 3 are fully captured through the multiple suction nozzles 72 on the inner wall of the return pipe 71, enter the piston cylinder 73 through the second communication pipe 77, and then are sent into the collection tank 61 through the second conveying pipe 76, so that the closed-loop recycling of the steam and the condensed water is completed. The double-shaft motor 53 continuously operates, the cam 510 drives the sliding plate 5133 to reciprocating slide, when the roller 46 rolls along the eight-shaped oblique groove 5135 to a position other than the lowest point, the distance between the nozzles 43 is expanded, the valve plate 63 is closed, and the piston cylinder 73 stops suction; when the roller 46 rolls to the lowest point again, the above-mentioned actions are repeated, so that the cycle operation of continuous cleaning of the protective film, accurate collection of the condensed water and efficient recycling of the steam is realized.

[0044] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, equivalent changes made on the basis of the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A steam cleaning device for the surface of a protective film in the production of release films, characterized in that: The device includes a base (1), a conveying device (2) disposed on the top of the base (1), and a cleaning box (3) fixedly connected to the top of the base (1). The conveying device (2) includes an unwinding roller (21), a winding roller (22), and a limiting roller (23). A conveying port (31) is provided on one side of the cleaning box (3). The cleaning box (3) is provided with a spraying structure (4) for spraying the protective film on both sides. The cleaning box (3) is provided with a collection structure (6) for collecting and conveying condensate. The cleaning box (3) is provided with a steam generator (5) and a recovery component (7) that are linked with the spraying structure (4) and the collection structure (6), respectively. The spraying structure (4) includes a C-shaped frame (41) disposed inside the cleaning box (3). A rotating tube (42) is disposed through the inside of the C-shaped frame (41). One end of the rotating tube (42) is fixedly connected to a spray pipe (43). An oblique spray hole (44) is opened on the surface of the spray pipe (43). A bushing (45) is rotatably connected to the other end of the rotating tube (42). A roller (46) is rotatably connected to one side of the C-shaped frame (41). The collection structure (6) includes a collection box (61) and an installation cylinder (62) fixedly connected to the bottom wall of the cleaning box (3). A valve plate (63) is rotatably connected inside the installation cylinder (62). A gear (66) is fixedly connected to the outside of the valve plate (63). A toothed plate (68) is meshed with the lower surface of the gear (66). A connecting rod (67) is fixedly connected to one side of the toothed plate (68). A first connecting pipe (64) is fixedly connected between the collection box (61) and the installation cylinder (62).

2. The steam cleaning device for the protective film surface in release film production according to claim 1, characterized in that: The number of the shaped frame (41), rotating tube (42), nozzle (43), oblique nozzle (44), bushing (45) and roller (46) are all in two sets. The two sets of shaped frame (41), rotating tube (42) and nozzle (43) are arranged opposite to each other. The number of oblique nozzles (44) is multiple.

3. A steam cleaning device for the surface of a protective film in release film production according to claim 2, characterized in that: Each of the two sets of C-shaped frames (41) has a connecting ear (47) fixedly connected to the other side. A limiting rod (48) is provided through the interior of each of the two sets of connecting ears (47), and the limiting rod (48) is fixedly connected to the interior of the cleaning box (3).

4. A steam cleaning device for the surface of a protective film in release film production according to claim 1, characterized in that: The steam generating device (5) includes a steam generator (51) and a mounting bracket (52) fixedly connected to the outside of the cleaning box (3). A dual-shaft motor (53) is fixedly installed inside the mounting bracket (52). A throat pipe (55) is fixedly installed on the inner bottom wall of the mounting bracket (52). Both ends of the throat pipe (55) are fixedly connected to expansion pipes (56). A vortex blade (57) is rotatably connected inside the expansion pipe (56) on the left side. An extraction pipe (512) is fixedly connected between the throat pipe (55) and the steam generator (51).

5. A steam cleaning device for the surface of a protective film in release film production according to claim 4, characterized in that: The expansion tube (56) on the right side is detachably fitted with a filter screen. A three-way hose (511) is fixedly connected between the end of the expansion tube (56) on the right side away from the throat tube (55) and the two sets of bushings (45).

6. A steam cleaning device for the surface of a protective film in release film production according to claim 4, characterized in that: A transmission wheel (54) is fixedly connected to one end of the output shaft of the dual-axis motor (53), a driven wheel (58) is fixedly connected to the outside of the vortex blade (57), a synchronous belt (59) is connected to the outside of the transmission wheel (54) and the driven wheel (58), and a cam (510) is fixedly connected to the other end of the output shaft of the dual-axis motor (53), and a transmission structure (513) is also provided on the outside of the cam (510).

7. A steam cleaning device for the surface of a protective film in release film production according to claim 6, characterized in that: The transmission structure (513) includes a fixed plate (5131) fixedly connected to the outside of the cleaning box (3). A limiting shaft (5132) is fixedly connected to one side of the fixed plate (5131). A sliding plate (5133) is slidably connected to the outside of the limiting shaft (5132). The sliding plate (5133) abuts against the outside of the cam (510). The sliding plate (5133) is slidably connected to the outside of the cleaning box (3). An inclined groove (5135) adapted to the roller (46) is opened inside the sliding plate (5133). The roller (46) is slidably connected to the inside of the inclined groove (5135). A transmission port adapted to the roller (46) is opened inside the cleaning box (3). A sealing gasket is fixedly installed inside the transmission port. There are two sets of inclined grooves (5135). The two sets of inclined grooves (5135) are arranged horizontally in a figure-eight shape.

8. A steam cleaning device for the surface of a protective film in release film production according to claim 7, characterized in that: A return spring (5134) is fixedly connected between the fixed plate (5131) and the slide plate (5133). The return spring (5134) is connected around the outside of the limiting shaft (5132). A first delivery pipe (65) is fixedly connected between the throat (55) and the mounting cylinder (62). The connecting rod (67) is fixedly connected to the bottom side of the slide plate (5133).

9. A steam cleaning device for the surface of a protective film in release film production according to claim 7, characterized in that: The recycling assembly (7) includes a U-shaped tube (71) fixedly connected inside the cleaning tank (3) and a piston cylinder (73) fixedly connected to the outer wall of the cleaning tank (3). A stopper plate (74) is slidably connected inside the piston cylinder (73). A transmission rod (75) extending to the outside of the piston cylinder (73) is fixedly connected to the outside of the stopper plate (74). One end of the transmission rod (75) away from the stopper plate (74) is fixedly connected to the outside of the slide plate (5133).

10. A steam cleaning device for the surface of a protective film in release film production according to claim 9, characterized in that: The inner wall of the spiral tube (71) is fixedly connected with a number of suction nozzles (72), the piston cylinder (73) and the collection box (61) are fixedly connected with a second delivery pipe (76), and the piston cylinder (73) and the spiral tube (71) are fixedly connected with a second connecting pipe (77).

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