A film removing system for traffic signs

Abstract

The application discloses a film removing system for traffic signs, which comprises a bearing platform for placing the traffic signs, and a cleaning mechanism and a air-drying mechanism are arranged on the bearing platform, the cleaning mechanism is communicated with a high-pressure water source for high-pressure spraying towards the traffic signs to remove the reflective film on the traffic signs, and the traffic signs are transmitted to the air-drying mechanism for air-drying after the removing operation. The application has the advantages of simple and compact structure, high automation degree, clean film and glue removing, greatly improved work efficiency, greatly reduced labor cost and strong adaptability.

Description

TECHNICAL FIELD

[0001] The present application mainly relates to the field of road traffic facilities manufacturing, and particularly relates to a film removing system for a traffic signboard. BACKGROUND

[0002] With the development of road traffic, the forms, sizes and specifications of traffic signboards are also more and more various. For example, active light-emitting signboards, passive light-emitting signboards, single-sided indicating signboards and double-sided indicating signboards. However, no matter what kind of traffic signboard, a layer or two layers of reflective film will be firmly pasted on the indicating surface of the traffic signboard for traffic indication.

[0003] In the current actual work, when the reflective film is pasted incorrectly in the production stage of the traffic signboard, the reflective film needs to be removed from the signboard and re-pasted. Or when the indicating information of some traffic signboards is changed (for example, the name of a place is changed, or the road network is changed, etc.), the original reflective film on the traffic signboard also needs to be removed in time and quickly, and the new reflective film needs to be re-pasted. However, as is known to all, in order to ensure the integrity, stability and traffic indication safety of the traffic signboard set outdoors, the reflective film is often pasted on the signboard body by using a very strong adhesive, such as a common 3M reflective film. This makes it difficult to remove the reflective film, and the following technical problems exist:

[0004] Firstly, the current degree of automation is low, and the reflective film is removed manually. However, the reflective film has a very strong adhesion, which makes it difficult to remove the reflective film. Not only is the labor consumption large, but also the labor efficiency is low. Moreover, the film and the adhesive are often not completely removed, which affects the secondary pasting.

[0005] Secondly, the manual removal of the reflective film often uses a violent removal method, which causes damage to the traffic signboard body and high maintenance cost.

[0006] Thirdly, due to the various forms, sizes, specifications and overall thicknesses of the traffic signboards, there is no suitable tooling for the removal operation.

[0007] Fourthly, the torn reflective film and adhesive scraps caused by manual removal cannot be collected and disposed in time. The film and adhesive scraps are everywhere, which can easily cause pollution in the factory and affect the environment.

[0008] Five is the existing research and development of a new film removal method, using high pressure water to traffic sign high pressure jet to remove the traffic sign on the reflective film. But there is no special operation equipment, if directly put traffic sign on the ground to high pressure washing, this makes sewage, film debris, glue debris and other impurities everywhere, easy to cause pollution in the factory, affect the environment. And after washing, the sign needs to wait for a long drying time to carry out the subsequent film process, which will greatly reduce the work efficiency. And if the subsequent process is in a hurry, the sign is not dry enough, which will greatly affect the film process, resulting in film blistering and other phenomena, rework is serious, greatly improves the maintenance cost. SUMMARY

[0009] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art, and to provide a film removal system for traffic sign plates, which has simple and compact structure, high automation, clean film and glue removal, greatly improved work efficiency, greatly reduced labor cost and strong adaptability.

[0010] To solve the above technical problems, the following technical solutions are adopted in the present application:

[0011] A film removal system for traffic sign plates, comprising a bearing platform for placing traffic sign plates, a cleaning mechanism and a air drying mechanism are provided on the bearing platform, the cleaning mechanism is in communication with a high pressure water source for high pressure jetting to traffic sign plates to remove the reflective film on the traffic sign plates, and after the cleaning operation, the traffic sign plates are transmitted to the air drying mechanism for air drying.

[0012] As a further improvement of the present application, the cleaning mechanism comprises a mounting rack and a stamping pipe assembly provided on the mounting rack, the tail end of the stamping pipe assembly is used for communication with the high pressure water source, and the jetting end is arranged towards the traffic sign plates, a translation assembly is provided on the mounting rack for driving the stamping pipe assembly to reciprocatingly translate left and right, and the translation assembly controls the translation range of the stamping pipe assembly for different sizes of traffic sign plates during operation, so that the stamping pipe assembly can adapt to traffic sign plates of different sizes.

[0013] As a further improvement of the present application, the translation assembly comprises a transverse mounting plate, a translation slide rail, a first motor and a ring-shaped drive belt assembly are provided on the mounting plate, the stamping pipe assembly is slidably positioned and mounted on the translation slide rail and connected with the ring-shaped drive belt assembly, and the first motor is used to drive the ring-shaped drive belt assembly to transmit in forward and reverse directions to drive the stamping pipe assembly to reciprocatingly translate left and right along the translation slide rail.

[0014] As a further improvement of the present application, the left and right ends of the mounting plate are rotatably mounted on the mounting frame through a first rotating shaft, and each of the left and right ends of the mounting plate is provided with an outwardly protruding adjusting screw below the first rotating shaft, and the mounting frame is fixedly provided with an adjusting plate near the left and right ends of the mounting plate, and the adjusting plate is provided with an adjusting long hole, and the adjusting screw is fastened through the adjusting long hole through a nut, and the adjusting long hole is used for adjusting the high-pressure jet angle of the stamping pipe assembly by adjusting the inclination angle of the mounting plate.

[0015] As a further improvement of the present application, the stamping pipe assembly comprises at least two medium-pressure guns and high-pressure guns with different stamping forces, the jet angles of the medium-pressure guns and high-pressure guns are adjustable, and the medium-pressure guns and high-pressure guns can be independently opened to adapt to the jet requirements of different traffic signboards or can be simultaneously opened to make the medium-pressure guns compensate for the high-pressure guns by adjusting the jet angles for secondary jet compensation.

[0016] As a further improvement of the present application, the cleaning mechanism further comprises a film collecting cover covering the mounting frame, and the film collecting cover is used for collecting and removing foreign matters during operation, the bottom of the film collecting cover is provided with an opening to enable the stamping pipe assembly to jet downward, and the bottom of the film collecting cover is provided with a ring of elastic scraping parts at the opening edge to be pressed on the traffic signboard during operation to scrape off the removed foreign matters.

[0017] As a further improvement of the present application, the mounting frame is further provided with a plurality of cleaning nozzles in communication with the cleaning source, and the plurality of cleaning nozzles are arranged towards the inner wall of the film collecting cover to remove the foreign matters adhered to the inner wall of the film collecting cover.

[0018] As a further improvement of the present application, the cleaning mechanism is movably installed on the bearing platform through the front and rear driving mechanisms, and the bottom of the mounting frame is further provided with a reversible limiting and pushing mechanism, the cleaning mechanism is translated to above the front end of the traffic signboard and then moved from front to back to gradually remove the traffic signboard, and the limiting and pushing mechanism is downwardly flipped and pressed on the traffic signboard to keep the traffic signboard limited and fixed, and after the removal is completed, the limiting and pushing mechanism is flipped again and moved to the side wall of the tail end of the traffic signboard to push the tail end of the traffic signboard through the limiting and pushing mechanism when the cleaning mechanism is moved back from back to front, so that the traffic signboard is pushed to the air drying mechanism for air drying.

[0019] As a further improvement of the present application, the limiting and pushing mechanism comprises a limiting rod and two fixed seats fixed on the left and right ends of the mounting frame, each of the fixed seats is provided with a flip seat which can be flipped up and down, the limiting rod is connected and fixed between the two flip seats, and the fixed seat is provided with a flip driving assembly for flipping the flip seat to press and limit the traffic signboard below through the limiting rod.

[0020] As a further improvement of the present application, the turnover seat is provided with a mounting rod for mounting a limiting rod, the limiting rod is movably sleeved on the mounting rod through the mounting hole at the end, and an elastic member is sleeved between the limiting rod and the turnover seat on the mounting rod, so that the limiting rod can press the traffic signboard of different thicknesses.

[0021] As a further improvement of the present application, the limiting rod is sleeved with more than one rolling bearing for pressing the rolling bearing on the traffic signboard when pressing and limiting.

[0022] As a further improvement of the present application, the limiting rod is further fixed with an axial push plate, the push plate does not contact the traffic signboard during the cleaning operation, and after the cleaning is completed, the turnover driving assembly drives the limiting rod to continue to turn over, so as to arrange the push plate downward and move to the side wall at the tail end of the traffic signboard, so as to push the traffic signboard through the push plate when the cleaning mechanism moves back.

[0023] As a further improvement of the present application, the turnover seat is movably mounted on the fixed seat through a second rotating shaft, the first gear is fixed on the second rotating shaft, the turnover driving assembly includes a telescopic driving cylinder and a first rack provided on the driving end of the telescopic driving cylinder, and the first rack and the first gear are engaged for driving the turnover seat to turn over.

[0024] As a further improvement of the present application, the two sides of the bearing platform are provided with limiting sliding rails for slidably mounting the cleaning mechanism on the bearing platform, the front and rear driving mechanism includes a second rack, a second gear and a second motor, the second rack is arranged on the side of the bearing platform in the front and rear translation direction, and the second gear on the driving shaft end of the second motor is mounted on the mounting frame and engaged with the second rack.

[0025] As a further improvement of the present application, the air drying mechanism includes an air drying box fixed on the bearing platform, a channel is formed between the air drying box and the bearing platform for passing the traffic signboard, and the bottom of the air drying box is provided with an air guide hole, and more than one fan assembly is arranged in the air drying box for blowing air to the air guide hole to dry the passing traffic signboard.

[0026] As a further improvement of the present application, a conveying platform is further provided and connected with the bearing platform, the air drying mechanism is arranged at the end of the bearing platform and close to the conveying platform, the top surface of the conveying platform is provided with two symmetrical guide plates for limiting and guiding the traffic signboard to pass between the two guide plates and transmit to the bearing platform, and the two guide plates are adjustably fixed on the top surface of the conveying platform for adjusting the limiting distance between the two guide plates according to the traffic signboard of different sizes.

[0027] Compared with the prior art, the application has the advantages that:

[0028] First, the film removing system for traffic signboards integrates a bearing platform, a cleaning mechanism and a air-drying mechanism. The cleaning mechanism is communicated with a high-pressure water source, and the high-pressure jetting towards the traffic signboard is used to remove the reflective film and glue on the traffic signboard. This removal method has high automation degree, and overturns the manual film tearing and glue removing operation mode of the prior art, so that the removal work is fast and efficient, and the labor cost is greatly reduced.

[0029] Second, the film removing system for traffic signboards is obtained through repeated tests and demonstrations. The high-pressure jetting method can remove the film (glue) cleanly, and the air-drying mechanism is integrated to dry the traffic signboard as soon as possible, so that the traffic signboard can quickly enter the next film pasting process. This not only greatly improves the work efficiency, but also greatly improves the flatness and beauty of the panel after film pasting, and improves the product quality.

[0030] Third, the film removing system for traffic signboards can balance the cleaning and panel protection by the high-pressure jetting method, and is not easy to damage the traffic signboard panel and other components, greatly improving the secondary utilization of the traffic signboard.

[0031] Fourth, the film removing system for traffic signboards has strong adaptability. Since the high-pressure jetting method is used, the film (glue) on the panel of the traffic signboard can be easily removed regardless of the form, size, overall thickness of the traffic signboard to be operated, and whether there is other protruding and recessed design on the panel.

[0032] Fifth, the film removing system for traffic signboards controls the reciprocating translation of the stamping pipe assembly by setting the translation assembly, so that it is not necessary to set a too wide stamping pipe assembly, and it is not necessary to simultaneously jet a wide and large amount of high-pressure objects (such as high-pressure water), which makes the device energy-saving and environmentally friendly, greatly saving the manufacturing cost and operation cost.

[0033] Sixth, the film removing system for traffic signboards can adapt to traffic signboards of various widths by setting the translation assembly, so that the cleaning effect is good, and the product has strong adaptability.

[0034] Seventh, the film removing system for traffic signboards can realize reciprocating and multiple coverage cleaning by the left-right reciprocating translation cleaning method of the stamping pipe assembly, so that film scraps and glue scraps will not be left on the panel, and the cleaning effect is excellent.

[0035] Eight, the film removing system for traffic signboard of the present application can adjust the high-pressure jet angle of the punch pipe assembly, so that the device has stronger adaptability and can adapt to the respective cleaning operation requirements of signboards with different thicknesses and different adhesive reflective films.

[0036] Nine, the film removing system for traffic signboard of the present application is provided with punch guns with different pressures.

[0037] Ten, the film removing system for traffic signboard of the present application is designed with a limiting and pushing mechanism, which is turned down and pressed on the traffic signboard during cleaning operation, so that the traffic signboard will not displace.

[0038] Eleven, the film removing system for traffic signboard of the present application is provided with more than one fan assembly in the air-drying box, which is used for blowing air to the air guide opening to dry the passing traffic signboard. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is the front view of the film removing system for traffic signboard of the present application.

[0040] Figure 2 is the rear view of the film removing system for traffic signboard of the present application.

[0041] Figure 3 is the side view of the film removing system for traffic signboard of the present application.

[0042] Figure 4 is the three-dimensional structure principle diagram of the film collecting cover of the present application.

[0043] Figure 5 is the three-dimensional structure principle diagram of the cleaning mechanism of the present application.

[0044] Figure 6It is the side view structure principle schematic diagram of the cleaning mechanism of the present application.

[0045] Figure 7 It is the perspective structure principle schematic diagram of the translation assembly of the present application.

[0046] Figure 8 It is the partial side view structure schematic diagram of the limiting device of the present application when it is not turned down and pressed.

[0047] Figure 9 It is the partial side view structure schematic diagram of the limiting device of the present application when it is turned down and pressed.

[0048] Figure 10 It is the partial side view structure schematic diagram of the push plate of the present application when it is turned down.

[0049] Figure 11 It is the partial perspective structure principle schematic diagram of the limiting device of the present application when it is not turned down and pressed.

[0050] Figure 12 It is the partial perspective structure principle schematic diagram of the limiting device of the present application when it is turned down and pressed.

[0051] Figure 13 It is the partial perspective structure principle schematic diagram of the film removing system for traffic signboard of the present application.

[0052] The various reference signs in the drawings represent:

[0053] 1, bearing platform; 2, cleaning mechanism; 21, mounting rack; 211, adjusting plate; 2111, adjusting long hole; 22, stamping pipe assembly; 221, medium pressure gun; 222, high pressure gun; 23, translation assembly; 231, mounting plate; 2311, first rotating shaft; 2312, adjusting screw; 232, translation sliding rail; 233, first motor; 234, annular drive belt assembly; 24, film collecting cover; 241, elastic scraping part; 25, cleaning nozzle; 3, air drying mechanism; 31, air drying box; 32, fan assembly; 4, front and rear driving mechanism; 41, second rack; 42, second gear; 43, second motor; 5, limiting and pushing mechanism; 51, limiting rod; 511, rolling bearing; 512, push plate; 52, fixed seat; 53, turning seat; 531, mounting rod; 532, elastic member; 533, first gear; 534, second rotating shaft; 54, turning driving assembly; 541, first rack; 6, conveying platform; 61, guide plate. DETAILED DESCRIPTION

[0054] The present application will be further described in detail below in combination with the drawings and specific examples.

[0055] As Figures 1 to 13As shown, the present application provides a film removing system for traffic signs, which comprises a bearing platform 1 (the traffic sign is shown as A in the drawing) for placing the traffic sign, the width of the bearing platform 1 is between 0.5 meters and 30 meters, which can adapt to various specifications of traffic signs on the current market. The bearing platform 1 is provided with a cleaning mechanism 2 and a drying mechanism 3, the cleaning mechanism 2 is connected with a high-pressure water source (as shown in B in the drawing) for high-pressure spraying towards the traffic sign to remove the reflective film on the traffic sign, and after the removal operation, the traffic sign is transmitted to the drying mechanism 3 for drying. The specific implementation principle is as follows: the film removing system for traffic signs of the present application integrates the bearing platform 1, the cleaning mechanism 2 and the drying mechanism 3, the bearing platform 1 can be directly matched with external transmission equipment to transmit the traffic sign to the bearing platform 1. Then the cleaning mechanism 2 on the bearing platform 1 is opened for cleaning, the reflective film and adhesive on the traffic sign are removed by high-pressure spraying, after the removal is completed, the traffic sign is continuously transmitted to the drying mechanism 3 for drying, so that the traffic sign can quickly enter the next film pasting process.

[0056] Through the above special scientific design, the following technical advantages are obtained:

[0057] Firstly, the film removing system for traffic signs of the present application integrates the bearing platform 1, the cleaning mechanism 2 and the drying mechanism 3, by arranging the cleaning mechanism 2 connected with the high-pressure water source, the reflective film and adhesive on the traffic sign are removed by high-pressure spraying towards the traffic sign. This removal method has high automation degree, overturns the manual film tearing and adhesive removing operation mode of the prior art, makes the removal and cleaning quick, greatly improves the work efficiency and greatly reduces the labor cost.

[0058] Secondly, through repeated tests and demonstrations, the film removing (adhesive removing) is clean by the high-pressure spraying method, and the drying mechanism 3 is also integrated to quickly dry the traffic sign, so that the traffic sign can quickly enter the next film pasting process, which not only greatly improves the work efficiency, but also greatly improves the flatness and beauty of the panel after film pasting, and improves the product quality.

[0059] Thirdly, the film removing system for traffic signs of the present application can balance the cleaning and panel protection by the high-pressure spraying method, which is not easy to damage the traffic sign panel and other components, and greatly improves the secondary utilization of the traffic sign.

[0060] Fourthly, the film removing system for traffic signs of the present application has strong adaptability, since the high-pressure spraying method is adopted, no matter what the form, size and overall thickness of the traffic sign to be operated are, whether there is other protruding and recessed design on the panel, the film (adhesive) on the panel can be easily removed.

[0061] As Figures 1 to 7 shown, further, in the preferred embodiment, the cleaning mechanism 2 comprises a mounting frame 21 and a stamping pipe assembly 22 arranged on the mounting frame 21, the tail end of the stamping pipe assembly 22 is arranged in communication with a high-pressure water source, and the spray end is arranged towards the traffic signboard, the mounting frame 21 is provided with a translation assembly 23 for driving the stamping pipe assembly 22 to reciprocatingly translate left and right, and the translation assembly 23 controls the translation range of the stamping pipe assembly 22 for different sizes of traffic signboards during operation, so that the stamping pipe assembly 22 can adapt to traffic signboards of different sizes. For example, when the width of the traffic signboard is one meter, the translation assembly 23 controls the stamping pipe assembly 22 to reciprocatingly translate left and right within a translation range of one meter (or slightly more than one meter) for cleaning. When the width of the traffic signboard in the next batch is two meters, the translation assembly 23 controls the stamping pipe assembly 22 to reciprocatingly translate left and right within a translation range of two meters (or slightly more than two meters) for cleaning. In general, it can cover the lateral range of the traffic signboard. Through the above special scientific design, the following technical advantages are obtained:

[0062] First, the film removing system for traffic signboards of the present application controls the reciprocating translation cleaning of the stamping pipe assembly 22 by arranging the translation assembly 23, so that it is not necessary to arrange a stamping pipe assembly 22 that is too wide, and it is not necessary to simultaneously spray a wide and large amount of high-pressure objects (such as high-pressure water), which makes the device energy-saving and environmentally friendly, greatly saving the manufacturing cost and operation cost. Second, the film removing system for traffic signboards of the present application can adapt to traffic signboards of various widths by arranging the translation assembly 23, so that the cleaning effect is good and the product adaptability is strong. Third, the film removing system for traffic signboards of the present application, the reciprocating translation cleaning mode of the stamping pipe assembly 22 can realize reciprocating and multiple coverage cleaning, and the film scraps and glue scraps will not be left on the panel, so that the cleaning effect is excellent.

[0063] As Figures 5 to 7As shown, further, in the preferred embodiment, the translation assembly 23 comprises a transverse mounting plate 231, the mounting plate 231 being provided with a translation slide rail 232, a first motor 233, and a ring-shaped drive belt assembly 234, the punch pipe assembly 22 being slidably positioned and mounted on the translation slide rail 232 and connected with the ring-shaped drive belt assembly 234, the first motor 233 being used to drive the ring-shaped drive belt assembly 234 to transmit in forward and reverse directions to drive the punch pipe assembly 22 to reciprocate left and right along the translation slide rail 232. In the present embodiment, two parallel translation slide rails 232 are provided, so that the punch pipe assembly 22 is stably positioned and mounted, and has strong stability during high-pressure flushing. The ring-shaped drive belt assembly 234 comprises two transmission wheels and a ring-shaped drive belt wound around the transmission wheels, the first motor 233 being used to drive one of the transmission wheels to move in forward and reverse directions to make the ring-shaped drive belt transmit in forward and reverse directions, the punch pipe assembly 22 being fixedly connected with the ring-shaped drive belt. Such a structure is simple, easy to manufacture and maintain, and stable in operation.

[0064] As shown in the drawings, Figures 5 to 7 Further, in the preferred embodiment, the left and right ends of the mounting plate 231 are rotatably mounted on the mounting rack 21 through a first rotation shaft 2311, and the left and right ends of the mounting plate 231 are further provided with an outwardly protruding adjusting screw 2312 below the first rotation shaft 2311, the mounting rack 21 being fixedly provided with an adjusting plate 211 near the left and right ends of the mounting plate 231, the adjusting plate 211 being provided with an adjusting long hole 2111, the adjusting screw 2312 being fastened through the adjusting long hole 2111 through a nut, and being used to adjust the high-pressure jet angle of the punch pipe assembly 22 by adjusting the inclination angle of the mounting plate 231. Through the above arrangement, the high-pressure jet angle of the punch pipe assembly 22 can be adjusted to adapt to different work requirements. For example, some signboards are single-sided structures and are relatively thin, so as not to deform or concave the signboard surface after high-pressure flushing, the high-pressure jet angle of the punch pipe assembly 22 can be adjusted at this time, the jet path is longer, and the high-pressure jet is relatively softer under the premise of ensuring the cleaning effect. For example, the film of some signboards has strong adhesion, and the signboard panel is thick, at this time, the punch pipe assembly 22 can be used for short-distance high-pressure jet downward for strong cleaning. That is, through the above special scientific design, the device has stronger adaptability and can adapt to the cleaning work requirements of signboards of different thicknesses and different adhesive reflective films.

[0065] As shown in the drawings, Figures 5 to 7As shown, further, in the preferred embodiment, the stamping tube assembly 22 comprises at least two stamping guns 221 and 222 of different pressures, the spray head angle of the stamping guns 221 and 222 is adjustable, the stamping guns 221 and 222 can be independently turned on for adapting to the spraying requirements of different traffic signboards, or can be turned on at the same time for secondary spraying compensation of the high-pressure gun 222 by the medium-pressure gun 221 by adjusting the spray head angle. In addition to the above-mentioned adaptation to the spraying requirements of different traffic signboards by adjusting the high-pressure spraying angle of the stamping tube assembly 22, the present application further innovates to set stamping guns of different pressures. For example, some signboards are single-sided structures, the signboard is relatively thin, in order not to deform or concave the signboard surface by high-pressure spraying, at this time, only the medium-pressure gun 221 can be used for medium-pressure spraying, which makes the high-pressure spraying relatively softer under the premise of ensuring the cleaning effect. Also for example, the film of some signboards has extremely strong adhesion, and the signboard panel is thick, at this time, the high-pressure gun 222 can be used alone for high-pressure spraying for strong cleaning. Even the medium-pressure gun 221 and the high-pressure gun 222 can be turned on at the same time, and the spraying force is larger. More importantly, the spray head angle of the medium-pressure gun 221 and the high-pressure gun 222 is adjustable, and the medium-pressure gun 221 can be used for secondary spraying compensation of the high-pressure gun 222, for example, the film of some signboards has extremely strong adhesion, the high-pressure gun 222 can be used to remove and break the originally adhered film and glue, and then the medium-pressure gun 221 is used to further flush the broken film and glue off the panel, so that no secondary residual adhesion is formed on the panel, effectively ensuring excellent cleaning effect. That is, the medium-pressure gun 221 and the high-pressure gun 222 cooperate with each other, the high-pressure gun 222 plays a role of strong stripping, and the medium-pressure gun 221 plays a role of compensation and cleaning.

[0066] As Figures 1 to 4As shown, further, in the preferred embodiment, the cleaning mechanism 2 also comprises a film collection cover 24 covering the mounting rack 21 for collecting and removing foreign matter during operation, the bottom of the film collection cover 24 is provided with an opening for the downward spraying of the punching pipe assembly 22, and a ring of elastic scraping parts 241 is provided at the edge of the bottom opening of the film collection cover 24 for being pressed against the traffic signboard during operation to scrape off the removed foreign matter. In this embodiment, the film collection cover 24 is made of transparent material. During high-pressure water spraying and removing operation, by providing the film collection cover 24, the high-pressure water, the film scraps and the glue scraps can be blocked in the film collection cover 24, so that the problem of environmental damage and pollution will not occur. The water, the film scraps and the glue scraps can only fall from the bottom opening of the film collection cover 24. At this time, by providing a ring of elastic scraping parts 241, the falling water, film scraps and glue scraps can be scraped off from the traffic signboard (and the tabletop of the bearing platform 1 beside it). The scraping parts 241 are elastic, so that traffic signboards of different thicknesses can be pressed against the scraping parts 241 and enter the bottom of the film collection cover 24 for cleaning, and the areas that are not pressed can also maintain good sealing effect to prevent water, film scraps and glue scraps from splashing out of the film collection cover 24.

[0067] As shown in FIG. 1, Figure 5 As shown, further, in the preferred embodiment, the mounting rack 21 is also provided with a plurality of cleaning nozzles 25 in communication with the cleaning source, the plurality of cleaning nozzles 25 are arranged towards the inner wall of the film collection cover 24 for removing foreign matter (such as dirty water, film scraps and glue scraps) adhered to the inner wall of the film collection cover 24. The cleaning nozzles 25 can also be in communication with high-pressure water for water cleaning or in communication with high-pressure gas for air cleaning.

[0068] As shown in FIG. 1, Figure 1 As shown in FIG. 1, Figure 2 As shown in FIG. 1, Figures 8 to 12 As shown in FIG. 1, further, in the preferred embodiment, the cleaning mechanism 2 is installed on the bearing platform 1 by the forward and backward driving mechanism 4 for forward and backward reciprocating movement, and the bottom of the mounting rack 21 is also provided with a reversible limiting and pushing mechanism 5, during the removing operation, the cleaning mechanism 2 is translated to the front end of the traffic signboard, then moves from front to back to remove the traffic signboard step by step, and the limiting and pushing mechanism 5 is flipped down to press against the traffic signboard to keep the traffic signboard limited and fixed, after the removing operation is completed, the limiting and pushing mechanism 5 is flipped again and moved to the side wall of the tail end of the traffic signboard, for pushing the tail end of the traffic signboard by the limiting and pushing mechanism 5 when the cleaning mechanism 2 moves back from back to front, so as to push the traffic signboard to the air drying mechanism 3 for air drying.

[0069] Due to high pressure washing, the traffic signboard may be displaced during the operation, which will cause inaccurate and incomplete cleaning. Therefore, the application further designs a limiting pushing mechanism 5, which is turned down and pressed on the traffic signboard during cleaning operation, so that the traffic signboard will not be displaced. At the same time, the limiting pushing mechanism 5 is integrated and installed at the bottom of the mounting rack 21, so that it can move with the mounting rack 21. That is, the pressing area of the limiting pushing mechanism 5 is always close to the mounting rack 21 (punching pipe assembly 22), that is, close to the area with the largest impact force, so that the limiting effect is good. More importantly, the limiting pushing mechanism 5 integrates the functions of limiting and pushing: when the cleaning operation is completed and the mounting rack 21 retreats to the rear of the tail end of the traffic signboard, there is no traffic signboard below the limiting pushing mechanism 5 at this time, and then the limiting pushing mechanism 5 is turned again and moved to the side wall of the tail end of the traffic signboard, that is, the limiting pushing mechanism 5 is moved from above the top surface of the traffic signboard to the side wall of the traffic signboard. Then the cleaning mechanism 2 moves back from the rear to the front, at this time the limiting pushing mechanism 5 at the side wall of the traffic signboard pushes the side wall of the traffic signboard and gradually pushes the traffic signboard together with the cleaning mechanism 2 to the air drying mechanism 3 for air drying. When the traffic signboard is completely pushed away from the carrying platform 1, the cleaning mechanism 2 is just translated to the front end of the carrying platform 1 at this time, which can just wait for the next traffic signboard to be washed and cleaned, and then move from front to back again to gradually clean the newly arrived traffic signboard. Therefore, by using the normal reset movement of the cleaning mechanism 2, the traffic signboard can be dried after cleaning by the limiting pushing mechanism 5, and two functions are achieved by one action.

[0070] As Figure 1 , Figure 2 , Figures 8 to 12 shown, further, in the preferred embodiment, the limiting pushing mechanism 5 includes a limiting rod 51 and two fixed seats 52 respectively fixed to the left and right ends of the mounting rack 21, each fixed seat 52 is provided with a flip seat 53 which can be flipped up and down, and the limiting rod 51 is connected and fixed between the two flip seats 53, and the fixed seat 52 is provided with a flip driving assembly 54 for flipping the flip seat 53 to press the traffic signboard below by the limiting rod 51. During operation, the flip driving assembly 54 can drive the limiting rod 51 to press the traffic signboard below, so that it will not be displaced, which well guarantees the cleaning effect.

[0071] As Figure 11 , Figure 12As shown, further, in the preferred embodiment, the turnover seat 53 is provided with a mounting rod 531 for mounting the limiting rod 51, the limiting rod 51 is movably sleeved on the mounting rod 531 through the mounting hole at the end, and a elastic member 532 is sleeved on the mounting rod 531 between the limiting rod 51 and the turnover seat 53, so that the limiting rod 51 can uniformly press the traffic sign board of different thicknesses. This makes the limiting rod 51 have a certain adjustment and extrusion space, which can adapt to traffic sign boards of different thicknesses. When one side is cleaned and the other side is displaced (as described above), the limiting rod 51 will not be pressed to death, that is, the limiting and reasonable movement are considered.

[0072] As shown in Figure 9 , Figure 10 As shown, further, in the preferred embodiment, the limiting rod 51 is sleeved with one or more rolling bearings 511 for pressing the rolling bearings 511 on the traffic sign board when pressing and limiting. When the cleaning mechanism 2 is translated, the rolling bearings 511 roll, and the rolling bearings 511 and the elastic member 532 are designed in cooperation, which further meets the operation requirements of considering limiting and allowing reasonable movement.

[0073] As shown in Figure 8 , Figure 9 , Figure 10 As shown, further, in the preferred embodiment, the limiting rod 51 is further fixed with a push plate 512 arranged in the axial direction. During the cleaning operation, the push plate 512 does not contact the traffic sign board (only the rolling bearings 511 contact the traffic sign board), after the cleaning is completed, the turnover driving assembly 54 drives the limiting rod 51 to continue to turn over, for arranging the push plate 512 downward and moving to the side wall at the tail end of the traffic sign board to push the traffic sign board to move through the push plate 512 when the cleaning mechanism 2 moves back. The specific principle is as follows: when the cleaning operation is completed and the installation rack 21 retreats to the rear of the tail end of the traffic sign board, at this time, the turnover driving assembly 54 drives the limiting rod 51 to turn over to arrange the push plate 512 downward and move to the side wall at the tail end of the traffic sign board, and then the cleaning mechanism 2 moves back from the rear to the front, at this time, the push plate 512 at the side wall of the traffic sign board just abuts against the end side wall of the traffic sign board, the cleaning mechanism 2 moves forward, and then the traffic sign board is also pushed to move forward through the push plate 512. As shown in Figure 8 , Figure 9 , Figure 10 As shown, Figure 8 is the state of not turning over and pressing down; Figure 9 is the state of turning over the limiting rod 51 downward by the turnover seat 53 to press the rolling bearings 511 on the limiting rod 51 on the traffic sign board; Figure 10The limit rod 51 is driven to overturn by the overturning driving assembly 54 so as to arrange the push plate 512 downward and move to the side wall of the tail end of the traffic signboard.

[0074] Further, in the preferred embodiment, the overturning seat 53 is movably mounted on the fixing seat 52 through a second rotating shaft 534, the first gear 533 is fixed on the second rotating shaft 534, the overturning driving assembly 54 includes a telescopic driving cylinder and a first gear rack 541 arranged on the driving end of the telescopic driving cylinder, the first gear rack 541 and the first gear 533 are engaged for driving the overturning seat 53 to overturn. When the first gear rack 541 is driven to extend forward by the telescopic driving cylinder, the first gear rack 541 drives the first gear 533 to rotate, and the overturning seat 53 is overturned downward through the second rotating shaft 534. When the first gear rack 541 is driven to retreat backward by the telescopic driving cylinder, the overturning seat 53 is overturned upward and retreats. In the embodiment, the telescopic driving cylinder includes a pneumatic cylinder or an electric cylinder.

[0075] As shown in the drawings, Figure 2 Further, in the preferred embodiment, the two sides of the bearing platform 1 are provided with limit sliding rails for slidably mounting the cleaning mechanism 2 on the bearing platform 1, the front and rear driving mechanism 4 includes a second gear rack 41, a second gear 42 and a second motor 43, the second gear rack 41 is arranged on the side of the bearing platform 1 in the front and rear translation direction, the second motor 43 is mounted on the mounting frame 21, and the second gear 42 and the second gear rack 41 on the driving shaft end of the second motor 43 are engaged. The second motor 43 is driven in forward and reverse directions, so that the second gear 42 and the second gear rack 41 are transmissionally matched, thereby making the cleaning mechanism 2 reciprocate forward and backward.

[0076] As shown in the drawings, Figure 1 , Figure 2 , Figure 3 , Figure 13 Further, in the preferred embodiment, the air drying mechanism 3 includes an air drying box 31 fixed on the bearing platform 1, a transmission channel is formed between the air drying box 31 and the bearing platform 1 for passing the traffic signboard, a wind guide opening is formed in the bottom of the air drying box 31, and one or more than one fan assembly 32 is arranged in the air drying box 31 for blowing air to the wind guide opening to dry the passing traffic signboard. The active air drying mode of the air drying box 2 can greatly improve the dryness of the signboard, is not easy to leave water stains, is convenient for the smooth completion of the subsequent film pasting operation, improves the product stability, and reduces the maintenance cost.

[0077] In the embodiment, the bottom of the air-drying box 31 is provided with a flexible windproof curtain along the edge of the air guide opening. Since traffic signboards have various specifications and different thicknesses, the transmission channel between the air-drying box 31 and the bearing platform 1 must have a certain height so that traffic signboards of various types can pass through the transmission channel. When thinner traffic signboards pass through the transmission channel, the wind will flow rapidly and disorderly, greatly reducing the air-drying efficiency. Therefore, the present application is specially provided with a flexible windproof curtain along the edge of the air guide opening, which can not only make thicker traffic signboards pass through the transmission channel smoothly, but also block the rapid and disorderly flow of wind when thinner traffic signboards pass through, greatly improving the air-drying efficiency. The device has strong adaptability and good air-drying effect. In the embodiment, the air-drying box 31 is provided with a flexible scraper protruding downward at the front end of the air guide opening, so that the top surface of the traffic signboard is scraped by the flexible scraper before air-drying. The cooperation of the advance scraping of bulk water stains and the subsequent air-drying further improves the air-drying efficiency and effect.

[0078] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 13 further, in the preferred embodiment, the conveying platform 6 is connected to the bearing platform 1, and the air-drying mechanism 3 is arranged at the end of the bearing platform 1 and close to the conveying platform 6. When the traffic signboard is transmitted out of the transmission channel, the conveying platform 6 can timely bear the traffic signboard, so that the traffic signboard with a certain mass can slowly pass through the transmission channel for air-drying, and the air-drying effect is good. At the same time, the conveying platform 6 can also be connected to other operation equipment, such as a mechanical hand, which takes away the air-dried traffic signboard on the conveying platform 6.

[0079] The top surface of the conveying platform 6 is provided with two symmetrical guide plates 61 for limiting and guiding the traffic signboard to pass through and be transmitted to the bearing platform 1. The two guide plates 61 are adjustably fixed on the top surface of the conveying platform 6, and are used to adjust the limiting distance between the two guide plates 61 according to traffic signboards of different sizes. When the traffic signboard to be cleaned is placed on the conveying platform 6 and is to be transmitted to the bearing platform 1 for cleaning and film removal, the adjustable guide plates 61 can make traffic signboards of different sizes be in the center position of the bearing platform 1 under the guidance and limiting action of the two guide plates 61, and then the subsequent cleaning, re-transmission and air-drying operations can be well completed.

[0080] As shown in Figure 1 , Figure 2As shown, further, in the preferred embodiment, a plurality of hole groove portions are formed in the bearing surface of the bearing platform 1, so that the waste water and impurities (film scraps, glue scraps) generated during the operation can flow down through the hole groove portions in time, and will not remain on the bearing platform 1. A collection chamber is arranged below the bearing surface of the bearing platform 1, for collecting the waste water and impurities flowing down through the hole groove portions, and a sewage valve is arranged at the bottom of the collection chamber. This allows the flowing waste water and impurities to be collected and retained, and will not flow into the ground, thus being sanitary and environmentally friendly.

[0081] Although the present application has been disclosed in the preferred embodiments as above, it is not intended to limit the present application. Any person skilled in the art, without departing from the scope of the present application, can make many possible changes and modifications to the above disclosed technical content, or modify equivalent embodiments of equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application, without departing from the content of the present application, shall fall within the scope of protection of the present application.

Claims

1. A film removal system for traffic signs, characterized in that: The system includes a support platform (1) for placing traffic signs, on which a cleaning mechanism (2) and a drying mechanism (3) are provided. The cleaning mechanism (2) is connected to a high-pressure water source for high-pressure spraying onto the traffic signs to remove the reflective film and, after cleaning, transferring the traffic signs to the drying mechanism (3) for drying. The cleaning mechanism (2) is mounted on the support platform (1) and can be moved back and forth via a front and rear drive mechanism (4). The cleaning mechanism (2) includes a mounting frame (21) and a stamping tube assembly (22) mounted on the mounting frame (21). A flip-up limiting and pushing mechanism (5) is also provided at the bottom of the mounting frame (21). During operation, the cleaning mechanism (2) moves horizontally to the front end of the traffic sign and then moves from front to back to gradually remove the traffic sign and make the limiting push mechanism (5) flip downward and press it on the traffic sign to keep the traffic sign in a fixed position. After the removal is completed, the limiting push mechanism (5) flips again and moves to the side wall of the rear end of the traffic sign. When the cleaning mechanism (2) moves from back to front, the limiting push mechanism (5) pushes the rear end of the traffic sign to the drying mechanism (3) to dry the traffic sign. The cleaning mechanism (2) also includes a film collection cover (24) covering the mounting frame (21) to collect the removed foreign objects during operation.

2. The film removal system for traffic signs according to claim 1, characterized in that: The tail end of the stamping tube assembly (22) is used to connect with a high-pressure water source and the spray end is set towards the traffic sign. The mounting frame (21) is provided with a translation component (23) for driving the stamping tube assembly (22) to move back and forth. During operation, the translation component (23) controls the translation range of the stamping tube assembly (22) for traffic signs of different sizes so that the stamping tube assembly (22) can adapt to traffic signs of different sizes.

3. The film removal system for traffic signs according to claim 2, characterized in that: The translation component (23) includes a horizontal mounting plate (231). The mounting plate (231) is provided with a translation slide rail (232), a first motor (233), and an annular drive belt assembly (234). The stamping tube assembly (22) is slidably and limitedly mounted on the translation slide rail (232) and connected to the annular drive belt assembly (234). The first motor (233) is used to drive the annular drive belt assembly (234) to transmit in both directions, so as to drive the stamping tube assembly (22) to move back and forth along the translation slide rail (232).

4. The film removal system for traffic signs according to claim 3, characterized in that: The mounting plate (231) is rotatably mounted on the mounting frame (21) at both ends via a first rotating shaft (2311). At the lower end of the first rotating shaft (2311), the mounting plate (231) is provided with an outwardly protruding adjusting screw (2312). An adjusting plate (211) is fixed at both ends of the mounting frame (21) near the mounting plate (231). An adjusting elongated hole (2111) is provided on the adjusting plate (2111). The adjusting screw (2312) passes through the adjusting elongated hole (2111) and is fastened by a nut. It is used to adjust the high-pressure injection angle of the stamping tube assembly (22) by adjusting the tilt angle of the mounting plate (231).

5. The film removal system for traffic signs according to claim 2, characterized in that: The stamping tube assembly (22) includes at least two medium-pressure guns (221) and high-pressure guns (222) with different stamping pressures. The nozzle angles of the medium-pressure guns (221) and high-pressure guns (222) are adjustable. The medium-pressure guns (221) and high-pressure guns (222) can be opened independently to adapt to the spraying requirements of different traffic signs, or they can be opened simultaneously to allow the medium-pressure guns (221) to perform secondary spraying compensation on the high-pressure guns (222) by adjusting the nozzle angle.

6. The film removal system for traffic signs according to claim 1, characterized in that: The bottom of the collecting hood (24) is provided with an opening so that the stamping tube assembly (22) can be sprayed downwards. The bottom opening edge of the collecting hood (24) is provided with a ring of elastic scraping part (241) for squeezing onto the traffic sign during operation to scrape away the foreign objects to be removed.

7. The film removal system for traffic signs according to claim 6, characterized in that: The mounting frame (21) is also provided with a plurality of cleaning nozzles (25) connected to the cleaning source. The plurality of cleaning nozzles (25) are positioned toward the inner wall of the collection hood (24) to remove foreign matter adhering to the inner wall of the collection hood (24).

8. The film removal system for traffic signs according to claim 1, characterized in that: The limiting and pushing mechanism (5) includes a limiting rod (51) and two fixed seats (52) respectively fixed to the left and right ends of the mounting frame (21). Each fixed seat (52) is provided with a flip seat (53) that can be flipped up and down. The limiting rod (51) is connected and fixed between the two flip seats (53). The fixed seat (52) is provided with a flip driving assembly (54) for driving the flip seat (53) to flip so that the limiting rod (51) presses the traffic sign below to a limit.

9. The film removal system for traffic signs according to claim 8, characterized in that: The flipping seat (53) is provided with a mounting rod (531) for installing the limiting rod (51). The limiting rod (51) is movably mounted on the mounting rod (531) through the mounting hole at the end. An elastic element (532) is sleeved on the mounting rod (531) between the limiting rod (51) and the flipping seat (53) so that the limiting rod (51) can press and limit traffic signs of different thicknesses.

10. The film removal system for traffic signs according to claim 8, characterized in that: One or more rolling bearings (511) are fitted on the limiting rod (51) to press the rolling bearings (511) onto the traffic sign when the limiting is tightened.

11. The film removal system for traffic signs according to claim 8, characterized in that: A push plate (512) is also fixed on the limiting rod (51) and arranged along the axis. During the cleaning operation, the push plate (512) does not contact the traffic sign. After the cleaning is completed, the flipping drive assembly (54) drives the limiting rod (51) to continue to flip, so that the push plate (512) is arranged downward and moved to the side wall at the rear end of the traffic sign so that when the cleaning mechanism (2) moves back, the traffic sign is pushed by the push plate (512).

12. The film removal system for traffic signs according to claim 8, characterized in that: The flipping seat (53) is movably mounted on the fixed seat (52) via a second rotating shaft (534). A first gear (533) is fixed on the second rotating shaft (534). The flipping drive assembly (54) includes a telescopic drive cylinder and a first rack (541) disposed on the drive end of the telescopic drive cylinder. The first rack (541) and the first gear (533) mesh to drive the flipping seat (53) to flip.

13. The film removal system for traffic signs according to claim 1, characterized in that: Both sides of the carrying platform (1) are provided with limiting slide rails for slidably mounting the cleaning mechanism (2) on the carrying platform (1). The front and rear drive mechanism (4) includes a second rack (41), a second gear (42) and a second motor (43). The second rack (41) is arranged on the side of the carrying platform (1) along the front and rear translation direction. The second motor (43) is mounted on the mounting frame (21) and the second gear (42) and the second rack (41) on the drive shaft end of the second motor (43) mesh.

14. The film removal system for traffic signs according to claim 1, characterized in that: The drying mechanism (3) includes a drying box (31) fixed on the support platform (1), and a channel is formed between the drying box (31) and the support platform (1) for traffic signs to pass through. The bottom of the drying box (31) is provided with an air guide port, and the drying box (31) is provided with one or more fan assemblies (32) for blowing air towards the air guide port to dry the passing traffic signs.

15. The film removal system for traffic signs according to claim 1, characterized in that: It also includes a conveying platform (6) that docks with the carrying platform (1). The drying mechanism (3) is located at the end of the carrying platform (1) and close to the conveying platform (6). The top surface of the conveying platform (6) is provided with two symmetrically arranged guide plates (61) for traffic signs to pass through between the two guide plates (61) and be guided and transported to the carrying platform (1). The two guide plates (61) are adjustablely fixed on the top surface of the conveying platform (6) for adjusting the limiting distance between the two guide plates (61) according to different sizes of traffic signs.

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