A carton uniform circulation wax dipping system and method

Abstract

The present invention relates to a system and method for uniformly circulating wax dipping of cartons, and relates to the technical field of carton production equipment. The system comprises a workbench and a work cover fixed on the top thereof, wherein a partition is fixedly installed in the middle of the top wall of the work cover, and a coating mechanism for uniformly dipping the cartons in wax is provided on one side of the partition, and two flipping mechanisms for changing the angle of the cartons are provided on the other side of the partition; since the gaps in the corrugated paper are flattened, only the edges of the carton seal are smeared with wax liquid, so as to prevent moisture from entering the gaps in the corrugated paper and damaging the structure of the carton; due to the effect of gravity, the carton is in an inclined state, and the seal of the carton is opened toward a first spray pipe, and the first spray pipe and the second spray pipe are opened to spray wax liquid on the inner wall and bottom of the carton, and excess wax liquid will flow out, while ensuring the moisture-proof effect of the carton, preventing wax liquid from accumulating on the bottom of the inner wall of the carton, so as to facilitate the recovery of wax liquid.

Description

Technical Field

[0001] The present invention relates to the technical field of carton production equipment, and in particular to a carton uniform circulation wax dipping system and method. Background Art

[0002] Wax-impregnated cartons are a new type of carton made by impregnating ordinary corrugated cartons with molten wax. They are highly waterproof and moisture-proof, and have good pressure resistance. They are used for packaging vegetables, fruits, meat, aquatic products, and seafood in cold storage or humid environments, preventing water seepage and collapse of the cartons, thereby effectively protecting the products inside. The existing carton wax-impregnating process involves immersing the cartons in molten synthetic wax and then hanging them for leveling and curing. This method requires the synthetic wax to be kept molten at all times, resulting in high energy consumption. A solution is needed to address the above technical problems.

[0003] For example, the patent document with publication number CN116766695A describes a device that spreads wax powder on the surface of a carton and then bakes it to form a wax film. This not only reduces energy consumption but also avoids excessive dewaxing during leveling. Furthermore, multiple spreading and baking steps form a double-layer wax film, further improving the carton's waterproof performance, significantly reducing production costs and improving product quality.

[0004] However, the above-mentioned wax coating method can only coat the outer surface of the carton with wax liquid, and it is difficult to effectively coat the bottom and inner wall of the carton with wax liquid, which affects the overall moisture-proof effect of the carton, and the wax liquid is easily accumulated at the bottom of the inner wall of the carton, affecting the recovery of excess wax liquid; at the same time, when coating the wax liquid in the above-mentioned manner, it is difficult to apply a sufficient amount of wax liquid to the edge of the carton seal, and external moisture can easily pass through the gaps in the corrugated paper to destroy the structure of the carton. Directly immersing the carton in the wax liquid can easily cause the corrugated paper to be soaked with wax liquid, which not only increases the weight of the carton, but also causes waste of wax liquid. Summary of the Invention

[0005] The technical problems solved by this solution are:

[0006] (1) How to solve the problem that it is difficult to apply enough wax liquid on the edge of the carton seal, and the external moisture can easily penetrate the gaps in the corrugated paper to destroy the carton structure;

[0007] (2) How to solve the problem that it is difficult to effectively apply wax liquid on the bottom and inner wall of the carton, which affects the overall moisture-proof effect of the carton and is difficult to recycle the excess wax liquid in the carton.

[0008] The object of the present invention can be achieved through the following technical solution: a carton uniform circulation wax dipping system, comprising a workbench and a work cover fixed on the top thereof, a partition fixedly installed in the middle of the top wall of the work cover, a coating mechanism for uniformly dipping the carton in wax is provided on one side of the partition, and two flipping mechanisms for changing the angle of the carton are provided on the other side of the partition;

[0009] The coating mechanism includes a lifting cylinder fixedly inserted on the top wall of the working cover, and the protruding end of the lifting cylinder is provided with an edge sealing unit for applying wax liquid to the edge of the carton sealing part, and a U-shaped cover is slidingly provided on the inner wall of the working cover below the edge sealing unit through a guide rail, and a spraying unit for spraying wax liquid is provided inside the U-shaped cover, and an adjusting unit for changing the flow direction of the wax liquid is provided on the side of the U-shaped cover close to the partition, and a moving cylinder for driving the U-shaped cover to move is fixedly installed on the back of the inner wall of the working cover.

[0010] A further technical improvement of the present invention is that the adjusting unit includes an adjusting cylinder fixedly connected to the inner wall of the working cover, an adjusting piston is slidably provided on the inner wall of the adjusting cylinder, a lifting rod is fixedly connected to the bottom of the adjusting piston, the bottom end of the lifting rod movably passes through the adjusting cylinder, and a baffle is fixedly installed thereon, the middle part of the adjusting cylinder is connected to a feed pipe for conveying wax liquid, and the output end of the feed pipe is located above the adjusting piston.

[0011] A further technical improvement of the present invention is that an L-shaped plate is rotatably provided on the inner wall of the working cover below the adjusting cylinder, a laterally arranged support frame is fixedly installed on the U-shaped cover, a roller is rotatably provided on the end of the support frame, the roller is rollingly connected to one section of the L-shaped plate, a shift rod is fixedly connected to the middle part of the lifting rod, and the other section of the L-shaped plate is movably connected to the shift rod.

[0012] A further technical improvement of the present invention is that: a limit frame for guiding the lifting rod is also fixedly provided on the inner wall of the working cover, and a tension spring is elastically provided between the limit frame and the baffle; when the wax liquid on the outer wall of the carton dries, the protruding end of the movable cylinder is controlled to shrink and reset, and the roller provides a thrust to the L-shaped plate, so that the L-shaped plate provides a downward thrust to the shift rod, so that the adjusting piston is reset to below the output end of the feed pipe, and the protruding end of the lifting cylinder is controlled to extend, so that the two pressing plates press the edges of the sealing of the carton respectively, and the wax liquid is injected into the connecting tube through the L-shaped tube, and then cooperated with several edge sealing tubes to spray the wax liquid onto the edge of the carton sealing. Since the gaps in the corrugated paper are flattened, only the edges of the carton sealing are smeared with wax liquid, which prevents excess wax liquid from entering the interior of the corrugated paper and avoids external moisture from entering the gaps in the corrugated paper to destroy the structure of the carton.

[0013] The further technical improvement of the present invention is that the edge sealing unit includes a lifting plate fixedly connected to the protruding end of the lifting cylinder, and longitudinally arranged pressing plates are fixedly installed at the bottom of the front and rear ends of the lifting plate. The bottom end positions of the two pressing plates correspond to the two edges of the carton sealing respectively, and a connecting pipe is provided on the side of the two pressing plates close to the partition. The two ends of the connecting pipe are fixedly inserted into the two pressing plates respectively, and several edge sealing pipes are fixedly inserted on the outer wall of the pressing plate. The input ends of several edge sealing pipes are connected to the connecting pipe, and the middle part of the connecting pipe is fixedly connected with a first hose, and the input end of the first hose is connected to the top of the adjusting cylinder through an L-shaped pipe.

[0014] A further technical improvement of the present invention is that the spraying unit includes a first connecting pipe located inside the U-shaped cover, two first nozzles are symmetrically connected in the middle of the first connecting pipe, and the front and rear ends of the first connecting pipe are connected to the second connecting pipe, and the output end of the second connecting pipe is fixedly installed with a second nozzle, and the two second nozzles are both facing the carton.

[0015] A further technical improvement of the present invention is that a positioning bracket is fixedly installed on the inner wall of the working cover, a second hose is fixedly inserted in the middle of the positioning bracket, the input end of the second hose is connected to the bottom of the adjusting cylinder, and the output end of the second hose is connected to the middle of the first connecting pipe.

[0016] A further technical improvement of the present invention is that the flipping mechanism includes a flipping cylinder fixedly inserted on the top wall of the working cover, the protruding end of the flipping cylinder is fixedly connected to a lifting seat, the lifting seat is provided with a rotating plate that rotates toward the side of the carton through a bearing, a clamping cylinder is fixedly installed on the rotating plate, and a suction cup for clamping the carton is fixedly installed on the protruding end of the clamping cylinder.

[0017] The further technical improvement of the present invention is that: the first spray pipe and the second spray pipe are respectively connected to the inner walls of the working cover on both sides of the flip cylinder, and the output ends of the first spray pipe and the second spray pipe are both facing the carton; when the edge of the carton sealing is smeared with wax liquid, the wax liquid is further dried in conjunction with the first heating pipe, and the conveyor belt is driven again to move the carton to the second spraying station, and the two clamping cylinders are opened so that the two suction cups clamp the carton away from the bottom of one end of the first spray pipe, and then the protruding end of the flip cylinder is controlled to contract so that the carton is lifted up. Due to the action of gravity, the carton is in an inclined state, and the sealing of the carton is opened toward the first spray pipe. The first spray pipe and the second spray pipe are opened to spray wax liquid on the inner wall and bottom of the carton, and excess wax liquid will flow out. While ensuring the moisture-proof effect of the carton, the wax liquid is prevented from accumulating at the bottom of the inner wall of the carton, which facilitates the recovery of the wax liquid.

[0018] A method for uniformly circulating wax dipping system for cartons, the method comprising the following steps:

[0019] Step 1: Place the carton on the conveyor belt and move the carton to the first spraying station via the conveyor belt. At this time, the carton is located directly under the lifting plate. By moving the extended end of the cylinder from the longest to the shortest, the U-shaped cover is moved above the carton. After the roller leaves the L-shaped plate, the lifting rod drives the adjusting piston to move upward to the top of the output end of the feed pipe through the action of the tension spring. Wax liquid is injected into the adjusting cylinder through the feed pipe. The wax liquid enters the first connecting pipe along the second hose, and cooperates with the first and second nozzles to evenly spray the wax liquid on the outer wall of the carton.

[0020] Step 2: After the outer wall of the carton is evenly sprayed with wax liquid, the wax liquid is dried by turning on the first heating tube. When the wax liquid is dry, the extended end of the movable cylinder is controlled to retract and reset, and the roller provides a thrust to the L-shaped plate, so that the L-shaped plate provides a downward thrust to the lever, so that the regulating piston is reset to the bottom of the output end of the feed pipe, and the extended end of the lifting cylinder is controlled to extend so that the two pressing plates press the edges of the sealing of the carton respectively, and the wax liquid is injected into the connecting tube through the L-shaped tube, and then cooperated with several edge sealing tubes to spray the wax liquid to the edge of the carton sealing. Since the gaps in the corrugated paper are flattened, only the edges of the carton sealing are smeared with wax liquid to prevent excess wax liquid from entering the interior of the corrugated paper, and to prevent external moisture from entering the gaps in the corrugated paper to damage the structure of the carton;

[0021] Step 3: After the edge of the carton seal is smeared with wax liquid, cooperate with the first heating tube to continue to dry the wax liquid, drive the conveyor belt again, move the carton to the second spraying station, and open the two clamping cylinders so that the two suction cups clamp the carton away from the bottom of one end of the first spray tube, and then control the extended end of the flip cylinder to contract so that the carton is lifted up. Due to the action of gravity, the carton is in an inclined state, and the seal of the carton is opened towards the first spray tube. Open the first spray tube and the second spray tube to spray wax liquid on the inner wall and bottom of the carton, and the excess wax liquid will flow out. While ensuring the moisture-proof effect of the carton, the wax liquid is prevented from accumulating at the bottom of the inner wall of the carton, which is convenient for recycling the wax liquid.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] When the present invention is in use, after the wax liquid on the outer wall of the carton dries, the protruding end of the movable cylinder is controlled to retract and reset, and the roller provides a thrust to the L-shaped plate, so that the L-shaped plate provides a downward thrust to the shift rod, so that the regulating piston is reset to below the output end of the feed pipe, and the protruding end of the lifting cylinder is controlled to extend, so that the two pressing plates respectively press the edges of the sealing part of the carton, and the wax liquid is injected into the connecting tube through the L-shaped tube, and then cooperated with a plurality of edge sealing tubes to spray the wax liquid onto the edge of the sealing part of the carton. Since the gaps in the corrugated paper are flattened, only the edges of the sealing part of the carton are smeared with wax liquid, which prevents excess wax liquid from entering the interior of the corrugated paper, and prevents external moisture from entering the gaps in the corrugated paper to damage the structure of the carton.

[0024] When the present invention is in use, after the edge of the carton seal is smeared with wax liquid, the wax liquid is further dried in conjunction with the first heating tube, the conveyor belt is driven again to move the carton to the second spraying station, and the two clamping cylinders are opened so that the two suction cups clamp the carton away from the bottom of one end of the first spray tube, and then the protruding end of the flip cylinder is controlled to contract so that the carton is lifted up. Due to the action of gravity, the carton is in an inclined state, and the seal of the carton is opened toward the first spray tube. The first spray tube and the second spray tube are opened to spray wax liquid on the inner wall and bottom of the carton, and excess wax liquid will flow out. While ensuring the moisture-proof effect of the carton, the wax liquid is prevented from accumulating on the bottom of the inner wall of the carton, which facilitates the recovery of the wax liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0026] Figure 1 It is a cross-sectional view of the overall structure of the present invention;

[0027] Figure 2 This is a schematic diagram of the coating mechanism structure of the present invention;

[0028] Figure 3 Schematic diagram of the structure of the regulating unit of the present invention;

[0029] Figure 4 Schematic diagram of the edge sealing unit structure of the present invention;

[0030] Figure 5 For the present invention Figure 2 A magnified view of the structure at center A;

[0031] Figure 6 This is a schematic diagram of the structure of the flipping mechanism of the present invention;

[0032] Figure 7 It is a three-dimensional exploded view of the flipping mechanism structure of the present invention.

[0033] In the figure: 1. coating mechanism; 2. second spray pipe; 3. turning mechanism; 4. second heating pipe; 5. first spray pipe; 6. blocking bar; 7. partition; 8. recovery pipe; 9. workbench; 10. conveyor belt; 11. first heating pipe; 12. working cover; 101. L-shaped pipe; 102. positioning frame; 103. adjustment unit; 104. second hose; 105. U-shaped cover; 106. spray unit; 107. edge sealing unit; 108. lifting cylinder; 109. first hose; 1031. adjustment cylinder; 1032. feeding Tube; 1033, regulating piston; 1034, lifting rod; 1035, shift rod; 1036, baffle; 1037, L-shaped plate; 1038, support frame; 1061, first nozzle; 1062, first connecting pipe; 1063, second connecting pipe; 1064, second nozzle; 1071, connecting pipe; 1072, pressing plate; 1073, edge sealing pipe; 1074, lifting plate; 301, flip cylinder; 302, rotating plate; 303, suction cup; 304, bearing; 305, clamping cylinder; 306, lifting seat. DETAILED DESCRIPTION

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0035] See also Figure 1-Figure 7 As shown, a carton uniform circulation wax dipping system includes a workbench 9 and a work cover 12 fixed on the top thereof, a partition 7 is fixedly installed in the middle of the top wall of the work cover 12, and a coating mechanism 1 for uniformly dipping the carton in wax is provided on one side of the partition 7, and two flipping mechanisms 3 for changing the angle of the carton are provided on the other side of the partition 7.

[0036] See also Figure 1-Figure 5 As shown, the above-mentioned coating mechanism 1 includes a lifting cylinder 108 fixedly inserted on the top wall of the working cover 12, and the protruding end of the lifting cylinder 108 is provided with an edge sealing unit 107 for applying wax liquid to the edge of the carton sealing. A U-shaped cover 105 is slidingly provided on the inner wall of the working cover 12 below the edge sealing unit 107 through a guide rail, and a spraying unit 106 for spraying wax liquid is provided inside the U-shaped cover 105. The side of the U-shaped cover 105 close to the partition 7 is provided with an adjusting unit 103 for changing the flow direction of the wax liquid, and a moving cylinder for driving the U-shaped cover 105 to move is fixedly installed on the back of the inner wall of the working cover 12.

[0037] See also Figure 1-Figure 3As shown, the above-mentioned adjusting unit 103 includes an adjusting cylinder 1031 fixedly connected to the inner wall of the working cover 12, and an adjusting piston 1033 is slidably provided on the inner wall of the adjusting cylinder 1031. The bottom of the adjusting piston 1033 is fixedly connected to a lifting rod 1034, and the bottom end of the lifting rod 1034 movably passes through the adjusting cylinder 1031, and a baffle 1036 is fixedly installed. The middle part of the adjusting cylinder 1031 is connected to a feed pipe 1032 for conveying wax liquid, and the output end of the feed pipe 1032 is located above the adjusting piston 1033.

[0038] See also Figure 1-Figure 3 As shown, an L-shaped plate 1037 is rotatably provided on the inner wall of the working cover 12 below the above-mentioned adjusting cylinder 1031, and a laterally arranged support frame 1038 is fixedly installed on the U-shaped cover 105. A roller is rotatably provided on the end of the support frame 1038, and the roller is rollingly connected to a section of the L-shaped plate 1037. A shift rod 1035 is fixedly connected to the middle part of the lifting rod 1034, and the other section of the L-shaped plate 1037 is movably connected to the shift rod 1035.

[0039] See also Figure 1 and Figure 3 As shown, a limit frame for guiding the lifting rod 1034 is fixedly provided on the inner wall of the above-mentioned working cover 12, and a tension spring is elastically provided between the limit frame and the baffle 1036; when the wax liquid on the outer wall of the carton dries, the extended end of the mobile cylinder is controlled to retract and reset, and the roller provides a thrust to the L-shaped plate 1037, so that the L-shaped plate 1037 provides a downward thrust to the lever 1035, so that the regulating piston 1033 is reset to the bottom of the output end of the feed pipe 1032, and the lifting is controlled. The protruding end of the cylinder 108 is extended, so that the two pressing plates 1072 press the edges of the sealing part of the carton respectively, and the wax liquid is injected into the connecting tube 1071 through the L-shaped tube 101, and then cooperated with several edge sealing tubes 1073 to spray the wax liquid onto the edge of the sealing part of the carton. Since the gaps in the corrugated paper are flattened, only the edges of the sealing part of the carton are coated with wax liquid to prevent excess wax liquid from entering the interior of the corrugated paper, and to prevent external moisture from entering the gaps in the corrugated paper to damage the structure of the carton.

[0040] See also Figure 1 、 Figure 2 and Figure 4As shown, the above-mentioned edge sealing unit 107 includes a lifting plate 1074 fixedly connected to the protruding end of the lifting cylinder 108, and longitudinally arranged pressing plates 1072 are fixedly installed at the bottom of the front and rear ends of the lifting plate 1074. The bottom end positions of the two pressing plates 1072 correspond to the two edges of the carton sealing respectively, and a connecting pipe 1071 is provided on the side of the two pressing plates 1072 close to the partition 7. The two ends of the connecting pipe 1071 are fixedly inserted into the two pressing plates 1072 respectively, and a number of edge sealing tubes 1073 are fixedly inserted on the outer wall of the pressing plate 1072, and the input ends of the several edge sealing tubes 1073 are connected to the connecting pipe 1071.

[0041] See also Figure 2 and Figure 3 As shown, the middle of the connecting pipe 1071 is fixedly connected with a first hose 109 , and the input end of the first hose 109 is connected with the top of the regulating cylinder 1031 through the L-shaped tube 101 .

[0042] See also Figure 2 and Figure 5 As shown, the above-mentioned spraying unit 106 includes a first connecting pipe 1062 located inside the U-shaped cover 105, and the middle part of the first connecting pipe 1062 is symmetrically connected to two first nozzles 1061, and the front and rear ends of the first connecting pipe 1062 are connected to the second connecting pipe 1063, and the output end of the second connecting pipe 1063 is fixedly installed with a second nozzle 1064, and the two second nozzles 1064 are both facing the carton.

[0043] See also Figure 1 、 Figure 2 and Figure 5 As shown, a positioning frame 102 is fixedly installed on the inner wall of the above-mentioned working cover 12, and a second hose 104 is fixedly inserted in the middle of the positioning frame 102. The input end of the second hose 104 is connected to the bottom of the adjusting cylinder 1031, and the output end of the second hose 104 is connected to the middle of the first connecting pipe 1062.

[0044] See also Figure 1 、 Figure 6 and Figure 7 As shown, the above-mentioned flipping mechanism 3 includes a flipping cylinder 301 fixedly inserted on the top wall of the working cover 12, and the protruding end of the flipping cylinder 301 is fixedly connected to a lifting seat 306. The lifting seat 306 is provided with a rotating plate 302 that rotates toward the side of the carton through a bearing 304. A clamping cylinder 305 is fixedly installed on the rotating plate 302, and a suction cup 303 for clamping the carton is fixedly installed at the protruding end of the clamping cylinder 305.

[0045] See also Figure 1 and Figure 5As shown, the inner walls of the working covers 12 on both sides of the above-mentioned flip cylinder 301 are respectively connected with the first spraying pipe 5 and the second spraying pipe 2, and the output ends of the first spraying pipe 5 and the second spraying pipe 2 are both facing the carton; after the edge of the carton sealing is smeared with wax liquid, the wax liquid is further dried in conjunction with the first heating pipe 11, and the conveyor belt 10 is driven again to move the carton to the second spraying station, and the two clamping cylinders 305 are opened, so that the two suction cups 303 clamp the bottom of one end of the carton away from the first spraying pipe 5, and then the protruding end of the flip cylinder 301 is controlled to contract, so that the carton is lifted up. Due to the action of gravity, the carton is in an inclined state, and the sealing of the carton is opened toward the first spraying pipe 5, and the first spraying pipe 5 and the second spraying pipe 2 are opened to spray wax liquid on the inner wall and bottom of the carton, and excess wax liquid will flow out. While ensuring the moisture-proof effect of the carton, the wax liquid is prevented from accumulating at the bottom of the inner wall of the carton, which is convenient for recycling the wax liquid.

[0046] See also Figure 1 As shown, a conveyor belt 10 for conveying cartons is also provided on the top of the above-mentioned workbench 9. The conveyor belt 10 passes through the interior of the working cover 12. Several first heating tubes 11 and second heating tubes 4 are fixedly installed on the inner walls of the working cover 12 on both sides of the partition 7.

[0047] See also Figure 1 As shown, two blocking bars 6 for guiding the wax liquid are symmetrically arranged on the workbench 9 below the above-mentioned conveyor belt 10, and two recovery pipes 8 for recovering the wax liquid are connected to the bottom of the back side of the working cover 12.

[0048] A method for uniformly circulating wax dipping system for cartons, the method comprising the following steps:

[0049] Step 1: Place the carton on the conveyor belt 10, and move the carton to the first spraying station through the conveyor belt 10. At this time, the carton is located directly under the lifting plate 1074. By moving the extended end of the cylinder from the longest to the shortest, the U-shaped cover 105 is moved above the carton. After the roller leaves the L-shaped plate 1037, the lifting rod 1034 drives the adjusting piston 1033 to move upward to above the output end of the feed pipe 1032 through the action of the tension spring. Wax liquid is injected into the adjusting cylinder 1031 through the feed pipe 1032. The wax liquid enters the first connecting pipe 1062 along the second hose 104, and cooperates with the first nozzle 1061 and the second nozzle 1064 to evenly spray the wax liquid on the outer wall of the carton;

[0050] 1035, so that the adjusting piston 1033 is reset to the bottom of the output end of the feeding pipe 1032, and the protruding end of the lifting cylinder 108 is controlled to extend so that the two pressing plates 1072 press the edges of the sealing of the carton respectively, and the wax liquid is injected into the connecting pipe 1071 through the L-shaped tube 101, and then cooperated with several edge sealing tubes 1073 to spray the wax liquid onto the edges of the carton sealing. Since the gaps in the corrugated paper are flattened, only the edges of the carton sealing are smeared with wax liquid, which prevents excess wax liquid from entering the interior of the corrugated paper and external moisture from entering the gaps in the corrugated paper to damage the structure of the carton.

[0051] Step 3: After the edge of the carton seal is smeared with wax liquid, cooperate with the first heating tube 11 to continue to dry the wax liquid, drive the conveyor belt 10 again, move the carton to the second spraying station, and open the two clamping cylinders 305 so that the two suction cups 303 clamp the bottom of one end of the carton away from the first spray tube 5, and then control the protruding end of the flip cylinder 301 to contract so that the carton is lifted up. Due to the action of gravity, the carton is in an inclined state, and the seal of the carton is opened toward the first spray tube 5. Open the first spray tube 5 and the second spray tube 2 to spray wax liquid on the inner wall and bottom of the carton, and the excess wax liquid will flow out. While ensuring the moisture-proof effect of the carton, the wax liquid is prevented from accumulating at the bottom of the inner wall of the carton, which facilitates the recovery of the wax liquid.

[0052] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific implementation methods, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0053] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can, without departing from the scope of the technical solution of the present invention, make some changes or modifications to equivalent embodiments using the technical contents disclosed above. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A carton uniform circulation wax dipping system, characterized by: It comprises a workbench (9) and a work cover (12) fixed on the top thereof, a partition (7) is fixedly mounted on the middle of the top wall of the work cover (12), a coating mechanism (1) for uniformly dipping wax into cartons is provided on one side of the partition (7), and two flipping mechanisms (3) for changing the angle of the cartons are provided on the other side of the partition (7); The coating mechanism (1) includes a lifting cylinder (108) fixedly inserted on the top wall of the working cover (12), an edge sealing unit (107) for coating the edge of the carton sealing portion with wax liquid is provided at the protruding end of the lifting cylinder (108), a U-shaped cover (105) is slidably provided on the inner side wall of the working cover (12) below the edge sealing unit (107), a spraying unit (106) for spraying wax liquid is provided inside the U-shaped cover (105), a regulating unit (103) for changing the flow direction of the wax liquid is provided on the side of the U-shaped cover (105) close to the partition (7), and a moving cylinder for driving the U-shaped cover (105) to move is fixedly installed on the back of the inner wall of the working cover (12); The regulating unit (103) comprises a regulating cylinder (1031) fixedly connected to the inner wall of the working cover (12); a regulating piston (1033) is slidably provided on the inner wall of the regulating cylinder (1031); a lifting rod (1034) is fixedly connected to the bottom of the regulating piston (1033); the bottom end of the lifting rod (1034) movably passes through the regulating cylinder (1031) and is fixedly installed with a baffle (1036); a feed pipe (1032) for conveying wax liquid is connected to the middle of the regulating cylinder (1031); the output end of the feed pipe (1032) is located above the regulating piston (1033); The edge sealing unit (107) includes a lifting plate (1074) fixedly connected to the protruding end of the lifting cylinder (108), and pressing plates (1072) are fixedly installed at the bottom of the front and rear ends of the lifting plate (1074). The bottom ends of the two pressing plates (1072) correspond to the two edges of the carton sealing part, and a connecting pipe (1071) is provided on the side of the two pressing plates (1072) close to the partition (7). The connecting pipe (1071) The two ends of the pressure plate (1072) are fixedly inserted into the two pressing plates (1072), and a plurality of edge-sealing tubes (1073) are fixedly inserted on the outer wall of the pressing plate (1072). The input ends of the plurality of edge-sealing tubes (1073) are all connected to the connecting tube (1071). The middle of the connecting tube (1071) is fixedly connected to a first hose (109). The input end of the first hose (109) is connected to the top of the regulating cylinder (1031) through the L-shaped tube (101); An L-shaped plate (1037) is rotatably provided on the inner wall of the working cover (12) below the regulating cylinder (1031), a support frame (1038) is fixedly installed on the U-shaped cover (105), a roller rotatably provided at the end of the support frame (1038) is connected to a section of the L-shaped plate (1037), a shifting rod (1035) is fixedly connected to the middle portion of the lifting rod (1034), and the other section of the L-shaped plate (1037) is movably connected to the shifting rod (1035); The turning mechanism (3) comprises a turning cylinder (301) fixedly inserted on the top wall of the working cover (12); the protruding end of the turning cylinder (301) is fixedly connected to a lifting seat (306); the lifting seat (306) is provided with a rotating plate (302) that rotates toward the side of the carton; the rotating plate (302) is fixedly mounted with a clamping cylinder (305); the protruding end of the clamping cylinder (305) is fixedly mounted with a suction cup (303) for clamping the carton; The inner walls of the working covers (12) on both sides of the tilting cylinder (301) are respectively connected to a first spraying pipe (5) and a second spraying pipe (2), and the output ends of the first spraying pipe (5) and the second spraying pipe (2) are both directed toward the carton.

2. A carton uniform circulation wax dipping system according to claim 1, characterized in that: A limiting frame for guiding the lifting rod (1034) is also fixedly provided on the inner wall of the working cover (12), and a tension spring is elastically provided between the limiting frame and the baffle (1036).

3. A carton uniform circulation wax dipping system according to claim 1, characterized in that: The spraying unit (106) includes a first connecting pipe (1062) located inside the U-shaped cover (105), two first nozzles (1061) are symmetrically connected in the middle of the first connecting pipe (1062), and the front and rear ends of the first connecting pipe (1062) are both connected to the second connecting pipe (1063), and the output end of the second connecting pipe (1063) is fixedly installed with a second nozzle (1064).

4. A carton uniform circulation wax dipping system according to claim 1, characterized in that: A positioning frame (102) is fixedly mounted on the inner wall of the working cover (12), and a second hose (104) is fixedly inserted in the middle of the positioning frame (102). The input end of the second hose (104) is connected to the bottom of the regulating cylinder (1031), and the output end of the second hose (104) is connected to the middle of the first connecting pipe (1062).

5. A method for operating a carton uniform circulation wax dipping system according to any one of claims 1 to 4, characterized in that: The working method specifically includes the following steps: Step 1: Place the carton on the conveyor belt (10), and move the carton to the first spraying station via the conveyor belt (10). At this time, the carton is located directly below the lifting plate (1074). By moving the extended end of the cylinder from the longest to the shortest, the U-shaped cover (105) is moved above the carton. After the roller leaves the L-shaped plate (1037), the lifting rod (1034) drives the regulating piston (1033) to move upward to above the output end of the feed pipe (1032) through the action of the tension spring. Wax liquid is injected into the regulating cylinder (1031) through the feed pipe (1032). The wax liquid enters the first connecting pipe (1062) along the second hose (104), and cooperates with the first nozzle (1061) and the second nozzle (1064) to evenly spray the wax liquid on the outer wall of the carton. Step 2: After the wax liquid is evenly sprayed on the outer wall of the carton, the wax liquid is dried through the first heating tube (11). When the wax liquid is dry, the extended end of the movable cylinder is controlled to retract and reset, and the roller provides thrust to the L-shaped plate (1037), so that the L-shaped plate (1037) provides downward thrust to the lever (1035), so that the regulating piston (1033) is reset to below the output end of the feed pipe (1032). The extended end of the lifting cylinder (108) is controlled to extend, so that the two pressing plates (1072) press the edges of the carton seal respectively, and the wax liquid is injected into the connecting tube (1071) through the L-shaped tube (101). Then, the wax liquid is sprayed onto the edge of the carton seal with the help of several edge sealing tubes (1073). Since the gaps in the corrugated paper are flattened, only the edge of the carton seal is coated with wax liquid. Step 3: After the edge of the carton seal is coated with wax liquid, the wax liquid is further dried in conjunction with the first heating tube (11), and the conveyor belt (10) is driven again to move the carton to the second spraying station. By opening the two clamping cylinders (305), the two suction cups (303) clamp the bottom of one end of the carton away from the first spraying tube (5), and then the extended end of the flip cylinder (301) is controlled to contract so that the carton is lifted up. Due to the effect of gravity, the carton is in an inclined state, and the seal of the carton is opened toward the first spraying tube (5). The first spraying tube (5) and the second spraying tube (2) are opened to spray the wax liquid on the inner wall and bottom of the carton, and the excess wax liquid will flow out.

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