A beverage carton corner cleaning device and a milk carton processing line

Abstract

A beverage packaging box corner cleaning device and a milk packaging box processing line; the cleaning device comprises a base, a material conveying mechanism and a blowing mechanism; the conveying end of the material conveying mechanism is provided with a limiting frame for accommodating the beverage packaging box, the two sides of the limiting frame are provided with exposed hollow openings, and the packaging corner extends out of the hollow openings; a pipe fixing base is angularly adjustable and is installed on the base and is close to the conveying end of the material conveying mechanism, and the limiting frame moves to pass through the pipe fixing base; the input end of a foreign matter removing hose is communicated with a gas source; the output end of the foreign matter removing hose is movably adjusted and limited in a seat hole; a corner gas nozzle faces the packaging corner of the hollow opening and is used for outputting compressed gas to the packaging corner; the pipe fixing base drives the output end of the foreign matter removing hose to rotate and adjust, so that the corner gas nozzle is angularly adjusted. The scheme solves the problems that impurities existing in the packaging corner hinder hot air to heat melt the plastic film on the surface of the packaging corner, cause the packaging corner to be not firmly adhered, and affect the packaging sealing performance and product quality.

Description

Technical Field

[0001] This utility model relates to the field of beverage packaging box processing, and in particular to a cleaning device for the corners of beverage packaging boxes and a milk packaging box processing line. Background Technology

[0002] In existing dairy packaging production lines, the packaging machine heats the outermost polyethylene film of the cardboard box with hot air and applies pressure to adhere the corners of the box to the sides. However, impurities at the corners can hinder the hot air from fully dissolving the PE film, resulting in weak adhesion of the flaps and affecting packaging seal and product quality. For example, lubricating water from the equipment in the dairy packaging production line may remain on the cardboard surface, especially in the flap adhesion area, which can also hinder the hot air from fully dissolving the PE film. Utility Model Content

[0003] The purpose of this invention is to provide a cleaning device for the corner of a beverage packaging box. It is equipped with an angle-adjustable fixed tube seat. The output end of the impurity removal hose passes through the seat hole of the fixed tube seat. By adjusting the angle of the fixed tube seat and the position of the output end of the impurity removal hose in the seat hole, the angle and relative horizontal position between the corner nozzle and the corner of the packaging can be adjusted, thereby effectively blowing away impurities at the corner of the packaging and preventing impurities from affecting the subsequent adhesion of the packaging corner to the side of the beverage packaging box.

[0004] This utility model also proposes a milk packaging box processing line, which is equipped with the above-mentioned cleaning device for the corner of a beverage packaging box.

[0005] To achieve this objective, the present invention adopts the following technical solution: A cleaning device for the corners of beverage packaging boxes includes: a base, a material conveying mechanism, and an air blowing mechanism; The material conveying mechanism is installed on the machine base. The conveying end of the material conveying mechanism is provided with a limiting frame for accommodating beverage packaging boxes. The two sides of the limiting frame have open cutouts, and the packaging corners on both sides of the beverage packaging box extend out of the open cutouts. The air blowing mechanism includes: a fixed pipe seat, a cleanup hose, a bendable nozzle, and an air source; The fixed tube seat is angularly adjustable and mounted on the machine base, close to the conveying end of the material transfer mechanism. The limiting frame moves past the fixed tube seat. The fixed tube seat has a seat hole. The input end of the impurity removal hose is connected to the air source. The outer wall of the output end of the impurity removal hose is movably and adjustablely limited to the seat hole. The angled nozzle faces the packaging angle of the perforated opening and is used to output compressed gas to the packaging angle. The fixed tube seat drives the output end of the impurity removal hose to rotate and adjust, so that the angled nozzle can be angled.

[0006] Alternatively, the fixed pipe seat may be provided with a threaded rod; the machine base may be provided with a threaded hole, and the threaded rod may be threaded into the threaded hole, so that the fixed pipe seat may be installed on the machine base in an angle-adjustable manner.

[0007] Optimally, the fixed tube seat is located close to the beginning of the conveying end of the material transfer mechanism; the output end of the angled air nozzle faces the beginning of the conveying end of the material transfer mechanism and is used to blow air to the beginning of the conveying end of the material transfer mechanism.

[0008] Optimally, the material transfer mechanism includes: a starting transfer wheel, an ending transfer wheel, a synchronous annular belt, and a rotary driver; The starting and ending conveyor wheels are rotatably mounted on the machine base, and the fixed tube seat is located diagonally above the starting conveyor wheel. The synchronous annular belt connects the starting and ending conveyor wheels synchronously, and the limiting frame is located on the synchronous annular belt. The output end of the rotation driver is connected to the starting or ending conveyor wheel to drive the starting and ending conveyor wheels to rotate, thereby causing the limiting frame of the synchronous annular belt to move horizontally on the machine base.

[0009] Alternatively, the material transfer mechanism may further include: a limiting plate; Multiple limiting plates are installed on the synchronous annular belt, and the horizontal section of the synchronous annular belt is provided with multiple vertically extending limiting plates, and a limiting frame is formed between two adjacent limiting plates; The air blowing mechanism further includes: a bottom blowing tube and a bottom blowing nozzle; The input end of the blow-down tube is connected to the air source; the output end of the blow-down tube is equipped with the blow-down nozzle; the blow-down nozzle faces downwards, and the limiting plate is conveyed by the synchronous annular belt to pass directly below the blow-down nozzle, and the blow-down nozzle is used to blow air onto the limiting plate.

[0010] Alternatively, the impurity removal hose can be a malleable PU hose.

[0011] Optimally, it may also include: a position sensing device; The air blowing mechanism also includes: a solenoid valve; The solenoid valve is installed on the impurity removal hose; The positioning sensor is located beside the material conveying mechanism, with its sensing end horizontally facing the conveying end of the material conveying mechanism. The limiting frame moves past the positioning sensor. The positioning sensor is communicatively connected to the solenoid valve and is used to open or close the solenoid valve.

[0012] Optimally, it may also include: a bend guide; The corner guide is located beside the conveying end of the material transfer mechanism; the corner guide extends upward from low to high along the conveying direction of the material transfer mechanism and gradually protrudes above the conveying end of the material transfer mechanism; the packaging corner of the cutout moves to contact the corner guide, and the corner guide is used to guide the packaging corner to rotate and adjust to be close to the side of the beverage packaging box.

[0013] A milk carton processing line is equipped with the aforementioned cleaning device for the corners of beverage cartons.

[0014] Compared with the prior art, one of the above technical solutions has the following beneficial effects: This solution provides a cleaning device for the corners of beverage packaging boxes. It features an angle-adjustable fixed tube seat, with the output end of a cleaning hose passing through a hole in the fixed tube seat. By adjusting the angle of the fixed tube seat and the position of the hose's output end in the hole, the angle and relative horizontal position between the corner nozzle and the packaging corner can be adjusted. This effectively removes impurities from the packaging corner, preventing them from affecting the subsequent adhesion of the corner to the side of the beverage packaging box. This solves the problem of impurities at the packaging corner hindering the hot air from melting the plastic film on the corner surface, leading to weak adhesion and affecting packaging sealing and product quality. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of one embodiment of the cleaning device; Figure 2 This is a schematic diagram of one embodiment of the cleaning device; Figure 3 yes Figure 2 Enlarged view of section A in the middle; Figure 4 This is a schematic diagram of one embodiment of the fixed tube seat.

[0016] in: 1. Base; 2. Material conveying mechanism; 3. Air blowing mechanism; 4. Position sensing device; 5. Corner guide; 8. Beverage packaging box; Threaded hole 11; starting conveyor wheel 21, ending conveyor wheel 22, synchronous annular belt 23, rotary driver 24; limiting plate 25; limiting frame 201; cutout 202; conveying end starting end 203, conveying end ending end 204; horizontal section 231; 31. Fixed pipe seat; 32. Impurity removal hose; 33. Angle nozzle; 34. Air source; 35. Bottom blowing pipe; 36. Bottom blowing nozzle; 37. Solenoid valve; 310. Seat hole; 311. Threaded rod; 81. Packaging angle. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0019] like Figure 1-4 A cleaning device for the corners of beverage packaging boxes includes: a base 1, a material conveying mechanism 2, and an air blowing mechanism 3; The material transfer mechanism 2 is installed on the base 1. The conveying end of the material transfer mechanism 2 is provided with a limiting frame 201 for accommodating the beverage packaging box 8. The two sides of the limiting frame 201 expose the hollow openings 202, and the packaging corners 81 on both sides of the beverage packaging box 8 extend out of the hollow openings 202. The air blowing mechanism 3 includes: a fixed pipe seat 31, a clean hose 32, a bend nozzle 33, and an air source 34; The fixed tube seat 31 is angularly adjustable and mounted on the machine base 1, close to the conveying end of the material transfer mechanism 2. The limiting frame 201 moves to pass through the fixed tube seat 31. The fixed tube seat 31 is provided with a seat hole 310. The input end of the impurity removal hose 32 is connected to the air source 34. The outer wall of the output end of the impurity removal hose 32 is movably and adjustablely limited to the seat hole 310. The angled nozzle 33 faces the packaging angle 81 of the hollow opening 202 and is used to output compressed gas to the packaging angle 81. The fixed tube seat 31 drives the output end of the impurity removal hose 32 to rotate and adjust, so that the angled nozzle 33 can be angled.

[0020] This solution provides a cleaning device for the corner of a beverage packaging box. It is equipped with an angle-adjustable fixed tube seat 31. The output end of the impurity removal hose 32 passes through the seat hole 310 of the fixed tube seat 31. By adjusting the angle of the fixed tube seat 31 and the position of the output end of the impurity removal hose 32 in the seat hole 310, the angle and relative horizontal position between the corner nozzle 33 and the packaging corner 81 can be adjusted. This allows impurities at the packaging corner 81 to be thoroughly blown away, preventing impurities from affecting the subsequent adhesion of the packaging corner 81 to the side of the beverage packaging box 8. This solves the problem that impurities at the packaging corner 81 hinder the hot air from melting the plastic film on the surface of the packaging corner 81, resulting in weak adhesion of the corner, as well as the problem of affecting the packaging seal and product quality.

[0021] The conveying end of the material transfer mechanism 2 moves to receive beverage packaging boxes 8; the conveying end of the material transfer mechanism 2 is provided with a limiting frame 201; the beverage packaging box 8 is placed in the limiting frame 201 by manual placement or by feeding with a known conveying device, and the packaging corner 81 of the beverage packaging box 8 extends out of the cutouts 202 on both sides of the limiting frame 201. The beverage packaging box 8 moves with the limiting frame 201 to pass through the fixed tube seat 31, thereby driving the packaging corner 81 of the beverage packaging box 8 to move past the fixed tube seat 31 diagonally below it; the fixed tube seat 31 is rotatably mounted on the machine base 1, and the rotation of the fixed tube seat 31 drives... The seat hole 310 rotates, thereby adjusting the orientation angle of the seat hole 310; the output end of the impurity removal hose 32 is set in the seat hole 310. The impurity removal hose 32 is made of rubber, which has a certain elasticity and can undergo a certain deformation; the impurity removal hose 32 passes through the seat hole 310, and the outer diameter of the impurity removal hose 32 can be designed to be slightly larger than the inner diameter of the seat hole 310. After deformation, the impurity removal hose 32 is limited to the seat hole 310, and the movement of the impurity removal hose 32 in the seat hole 310 can be adjusted; the fixed pipe seat 31 can be driven to rotate for adjustment by manual or mechanical drive, and the fixed pipe seat 31 drives the seat... When the orifice 310 rotates, it drives the conveying end of the impurity removal hose 32 and the angled nozzle 33 to rotate. The angled nozzle 33 is adjusted to an inclined direction and to a specific angle. At this specific angle, the angled nozzle 33 faces the packaging angle 81 of the perforated opening 202. After the air source 34 is turned on, the air source 34 outputs compressed gas to the impurity removal hose 32, which then outputs the gas through the angled nozzle 33 to the packaging angle 81. The angled nozzle 33 can blow away impurities from the packaging angle 81 at a preset angle, thereby keeping the packaging angle 81 clean. Thus, this method... The impurity removal hose 32 can be movably passed through the seat hole 310, and the horizontal distance between the corner nozzle 33 and the packaging corner 81 can be adjusted. Combined with the corner nozzle 33, the angle can be adjusted by the fixed tube seat 31 to obtain the optimal blowing angle. This solution can effectively blow away impurities at the packaging corner 81, preventing impurities from affecting the subsequent bonding of the packaging corner 81 to the side of the beverage packaging box 8. This solves the problem that impurities at the packaging corner 81 hinder the hot air from melting the plastic film on the surface of the packaging corner 81, resulting in weak corner adhesion, as well as the problem of affecting packaging sealing and product quality.

[0022] The material conveying mechanism 2 is a known material conveying mechanism, such as a conveyor belt structure, a conveyor roller structure, a combination of gears and toothed chains, a moving trolley, etc., as long as it can drive the beverage packaging box 8 to move.

[0023] Alternatively, the fixed tube seat 31 is provided with a threaded rod 311; the machine base 1 is provided with a threaded hole 11, and the threaded rod 311 is threaded into the threaded hole 11, so that the fixed tube seat 31 can be installed on the machine base 1 in an angle-adjustable manner.

[0024] The fixed pipe seat 31 is provided with a threaded rod 311, which has an external thread structure; the machine base 1 is provided with a threaded hole 11, which has an internal thread structure. The threaded rod 311 is threaded into the threaded hole 11, thereby fixing the fixed pipe seat 31 to the machine base 1. When it is necessary to adjust the angle of the impurity removal hose 32, the fixed pipe seat 31 can be rotated to drive the threaded rod 311 to rotate relative to the threaded hole 11, thereby driving the impurity removal hose 32 in the seat hole 310 to rotate, so that the angle nozzle 33 of the impurity removal hose 32 is adjusted to a specific angle.

[0025] Optimally, the fixed tube seat 31 is located close to the conveying end 203 of the material transfer mechanism 2; the output end of the angled air nozzle 33 faces the conveying end 203 of the material transfer mechanism 2 and is used to blow air into the conveying end 203 of the material transfer mechanism 2.

[0026] The fixed tube seat 31 is located near the conveying end 203 of the material transfer mechanism 2, such as... Figure 1 The arrow indicates the conveying direction of the conveying end of the material conveying mechanism 2. The conveying end of the material conveying mechanism 2 outputs the beverage packaging box 8 from the beginning 203 of the conveying end to the end 204 of the conveying end. After entering the beginning of the material conveying mechanism 2, the beverage packaging box 8 passes obliquely downward through the angled nozzle 33 of the impurity removal hose 32. The angled nozzle 33 of the impurity removal hose 32 blows air downward toward the packaging angle 81. Since the output end of the angled nozzle 33 faces the beginning 203 of the conveying end of the material conveying mechanism 2, the airflow is output to the beginning 203 of the conveying end of the material conveying mechanism 2 after passing through the packaging angle 81, so that impurities fly out from the beginning 203 of the conveying end of the material conveying mechanism 2 and do not remain at the conveying end.

[0027] Optimally, the material transfer mechanism 2 includes: a starting transfer wheel 21, an ending transfer wheel 22, a synchronous annular belt 23, and a rotary driver 24; The starting conveyor wheel 21 and the ending conveyor wheel 22 are rotatably mounted on the base 1, and the fixed tube seat 31 is located close to and diagonally above the starting conveyor wheel 21; the synchronous annular belt 23 connects the starting conveyor wheel 21 and the ending conveyor wheel 22 synchronously, and the limiting frame 201 is disposed on the synchronous annular belt 23; the output end of the rotation driver 24 is connected to the starting conveyor wheel 21 or the ending conveyor wheel 22, and is used to drive the starting conveyor wheel 21 and the ending conveyor wheel 22 to rotate, thereby causing the limiting frame 201 of the synchronous annular belt 23 to move horizontally on the base 1.

[0028] The starting conveyor wheel 21 and the ending conveyor wheel 22 are rotatably mounted on the base 1. The synchronous annular belt 23 has an annular structure, which connects the starting conveyor wheel 21 and the ending conveyor wheel 22 synchronously. When the rotary driver 24 is started, the output end of the rotary driver 24 drives the starting conveyor wheel 21 or the ending conveyor wheel 22 to rotate. The starting conveyor wheel 21 and the ending conveyor wheel 22 together drive the synchronous annular belt 23 to rotate, thereby causing the horizontal section 231 of the synchronous annular belt 23 to move horizontally in a straight line. This causes the limiting frame 201 of the synchronous annular belt 23 to move horizontally, thereby driving the beverage packaging box 8 of the limiting frame 201 to be conveyed from the starting end 203 to the ending end 204 of the synchronous annular belt 23. Since the starting end 203 of the synchronous annular belt 23 is located at the starting conveyor wheel 21, and the fixed tube seat 31 is located close to and diagonally above the starting conveyor wheel 21, the starting conveyor... The outer contour of the conveyor wheel 21 has an arc structure. The synchronous annular belt 23 bypasses this arc structure. When the angled air nozzle 33 outputs compressed gas towards the starting conveyor wheel 21, it can blow impurities horizontally to fall along the arc structure. At the same time, the limiting frame 201 is installed on the synchronous annular belt 23. The synchronous annular belt 23 rotates cyclically on the machine base 1. The synchronous annular belt 23 drives the limiting frame 201 to circulate through the machine base 1. The limiting frame 201 receives the beverage packaging box 8 at the starting conveyor wheel 21 and discharges the beverage packaging box 8 at the ending conveyor wheel 22. When the limiting frame 201 is re-conveyed to the starting conveyor wheel 21, the angled air nozzle 33 is located close to the upper side of the starting conveyor wheel 21. The angled air nozzle 33 continuously blows air, which can blow air on the limiting frame 201 and the synchronous annular belt 23 when the limiting frame 201 does not receive the beverage packaging box 8, thereby cleaning the empty limiting frame 201 and the synchronous annular belt 23 and improving cleanliness.

[0029] The rotary drive 24 is a known mechanism with a function of driving rotation, such as a motor or a combination of a motor and a reducer.

[0030] In one embodiment (not shown), the material transfer mechanism 2 of this solution is replaced by a conventional conveyor belt mechanism, with the starting conveyor wheel 21 and the ending conveyor wheel 22 being the wheels of the conveyor belt mechanism, and the synchronous annular belt 23 being the conveyor belt of the conveyor belt mechanism.

[0031] In one embodiment (not shown), the starting conveyor wheel 21 and the ending conveyor wheel 22 are equipped with gears, and the synchronous annular belt 23 is a toothed chain. The synchronous annular belt 23 simultaneously meshes with the gears of both the starting conveyor wheel 21 and the ending conveyor wheel 22. The starting conveyor wheel 21 and the ending conveyor wheel 22 may each have gears on one or both sides. The toothed chain meshes the gears of both the starting conveyor wheel 21 and the ending conveyor wheel 22. The limiting frame 201 is connected to the synchronous annular belt 23. Rotation of one of the starting conveyor wheel 21 or the ending conveyor wheel 22 drives the synchronous annular belt 23 to rotate, thereby driving the other one to rotate. This embodiment uses gear and toothed chain drive, which has significant advantages in terms of efficiency, accuracy, load capacity, and environmental adaptability.

[0032] Alternatively, the material transfer mechanism 2 may further include: a limiting plate 25; Multiple limiting plates 25 are installed on the synchronous ring belt 23. The horizontal section 231 of the synchronous ring belt 23 is provided with multiple vertically extending limiting plates 25, and a limiting frame 201 is formed between two adjacent limiting plates 25. The blowing mechanism 3 further includes: a bottom blowing tube 35 and a bottom blowing nozzle 36; The input end of the blow-down tube 35 is connected to the air source 34; the output end of the blow-down tube 35 is equipped with the blow-down nozzle 36; the blow-down nozzle 36 faces downward, and the limiting plate 25 is conveyed by the synchronous annular belt 23 to pass directly below the blow-down nozzle 36, and the blow-down nozzle 36 is used to blow air onto the limiting plate 25.

[0033] The bottom-blowing pipe 35 is connected to the air source 34, which outputs compressed gas downwards through the bottom-blowing nozzle 36. The synchronous annular belt 23 rotates cyclically, driving multiple limiting plates 25 to rotate cyclically as well. A limiting frame 201 for accommodating the beverage packaging box 8 is formed between two adjacent limiting plates 25. When the limiting plates 25 rotate around the starting conveyor wheel 21 from bottom to top, the bottom-blowing nozzle 36 blows air downwards, which can be done during the angle switching of the limiting plates 25, thereby blowing out impurities from the limiting frame 201. When the limiting plates 25 rotate to a horizontal orientation, the beverage packaging box 8 can be placed horizontally into the limiting plates 25. When the limiting plates 25 rotate to the horizontal section 231 vertical to the synchronous annular belt 23, the limiting frame 201 formed by the two limiting plates 25 provides a limiting effect on the beverage packaging box 8.

[0034] Alternatively, the impurity removal hose 32 can be made of malleable PU tubing.

[0035] The malleable PU tube has excellent mechanical properties, such as wear resistance, making it suitable for normal movement and adjustment of its position at the seat hole 310 to adjust the output end position of the impurity removal hose 32; the malleable PU tube also has oil resistance, which can prevent residual lubricating water at the packaging corner 81 from contacting the surface of the malleable PU tube and affecting its service life; at the same time, it is non-toxic, odorless and has excellent flame retardant properties, making it suitable for the processing environment of beverage packaging boxes 8.

[0036] Optimally, it also includes: a position sensing device 4; The air blowing mechanism 3 also includes: a solenoid valve 37; The solenoid valve 37 is installed on the impurity removal hose 32; The positioning sensing device 4 is located beside the material conveying mechanism 2, with the sensing end of the positioning sensing device 4 facing horizontally toward the conveying end of the material conveying mechanism 2. The limiting frame 201 moves past the positioning sensing device 4. The positioning sensing device 4 is communicatively connected to the solenoid valve 37 and is used to open or close the solenoid valve 37.

[0037] The positioning sensor 4 is located beside the material conveying mechanism 2 and can be used to sense the positioning of the beverage packaging box 8. Since the positioning sensor 4 is communicatively connected to the solenoid valve 37, after the positioning sensor 4 senses that the beverage packaging box 8 has been positioned, it can control the solenoid valve 37 to open, thereby outputting compressed gas to the packaging corner 81. After a certain period of time, the solenoid valve 37 is closed to stop blowing gas. In this way, this embodiment does not require a long time to output compressed gas, and only blows gas after the beverage packaging box 8 has been positioned, thereby improving the blowing efficiency.

[0038] The positioning sensor 4 is a known sensor, which can be selected as a limit switch, proximity switch, photoelectric sensor, magnetic field sensor, wave / signal ranging sensor, etc., as long as it can sense the positioning of the beverage packaging box 8. The communication connection method here refers to establishing communication between connected devices through signal transmission and interaction, which can be divided into wired connection and wireless connection; wired connection includes conventional data cable connection; wireless connection includes conventional WiFi, Bluetooth, infrared, NFC, etc.

[0039] Optimally, it also includes: a bend guide 5; The angle guide 5 is disposed beside the conveying end of the material transfer mechanism 2; the angle guide 5 extends upward from low to high along the conveying direction of the material transfer mechanism 2 and gradually protrudes above the conveying end of the material transfer mechanism 2; the packaging angle 81 of the cutout 202 moves to contact the angle guide 5, and the angle guide 5 is used to guide the packaging angle 81 to rotate and adjust to be close to the side of the beverage packaging box 8.

[0040] The angle guide 5 is located beside the conveying end of the material transfer mechanism 2, for example, beside the synchronous ring belt 23. The angle guide 5 extends from low to high along the conveying direction of the material transfer mechanism 2, and the extension direction of the angle guide 5 gradually rises to be located above the conveying end. When the limiting frame 201 moves the beverage packaging box 8, the packaging angle 81 of the beverage packaging box 8 extends out of the cutout 202 of the limiting frame 201. The packaging angle 81 contacts the angle guide 5 during movement. Since the angle guide 5 forms a height difference between the two ends, as the beverage packaging box 8 moves, the angle guide 5 can guide the packaging angle 81 to swing, so that the packaging angle 81 swings to both sides of the beverage packaging box 8, thereby narrowing the angle between the side of the beverage packaging box 8 and the packaging angle 81. The angle nozzle 33 blows air directly onto the narrowed area, so that the airflow is more concentrated in the narrowed area, which can further improve the cleaning ability.

[0041] A milk carton processing line is equipped with the aforementioned cleaning device for the corners of beverage cartons.

[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cleaning device for the corners of beverage packaging boxes, characterized in that, include: Machine base, material conveying mechanism, and air blowing mechanism; The material conveying mechanism is installed on the machine base. The conveying end of the material conveying mechanism is provided with a limiting frame for accommodating beverage packaging boxes. The two sides of the limiting frame have open cutouts, and the packaging corners on both sides of the beverage packaging box extend out of the open cutouts. The air blowing mechanism includes: a fixed pipe seat, a cleanup hose, a bendable nozzle, and an air source; The fixed tube seat is angularly adjustable and mounted on the machine base, close to the conveying end of the material transfer mechanism. The limiting frame moves past the fixed tube seat. The fixed tube seat has a seat hole. The input end of the impurity removal hose is connected to the air source. The outer wall of the output end of the impurity removal hose is movably and adjustablely limited to the seat hole. The angled nozzle faces the packaging angle of the perforated opening and is used to output compressed gas to the packaging angle. The fixed tube seat drives the output end of the impurity removal hose to rotate and adjust, so that the angled nozzle can be angled.

2. The cleaning device for the corners of a beverage packaging box according to claim 1, characterized in that, The fixed tube seat is provided with a threaded rod; the machine base is provided with a threaded hole, and the threaded rod is threaded into the threaded hole, so that the fixed tube seat can be installed on the machine base with adjustable angle.

3. A cleaning device for the corners of beverage packaging boxes according to claim 2, characterized in that, The fixed tube seat is located near the beginning of the conveying end of the material transfer mechanism; the output end of the angled air nozzle faces the beginning of the conveying end of the material transfer mechanism and is used to blow air into the beginning of the conveying end of the material transfer mechanism.

4. A cleaning device for the corners of a beverage packaging box according to claim 3, characterized in that, The material transfer mechanism includes: a starting conveyor wheel, an ending conveyor wheel, a synchronous annular belt, and a rotary driver; The starting and ending conveyor wheels are rotatably mounted on the machine base, and the fixed tube seat is located diagonally above the starting conveyor wheel. The synchronous annular belt connects the starting and ending conveyor wheels synchronously, and the limiting frame is located on the synchronous annular belt. The output end of the rotation driver is connected to the starting or ending conveyor wheel to drive the starting and ending conveyor wheels to rotate, thereby causing the limiting frame of the synchronous annular belt to move horizontally on the machine base.

5. A cleaning device for the corners of a beverage packaging box according to claim 4, characterized in that, The material transfer mechanism further includes: a limiting plate; Multiple limiting plates are installed on the synchronous annular belt, and the horizontal section of the synchronous annular belt is provided with multiple vertically extending limiting plates, and a limiting frame is formed between two adjacent limiting plates; The air blowing mechanism further includes: a bottom blowing tube and a bottom blowing nozzle; The input end of the blow-down tube is connected to the air source; the output end of the blow-down tube is equipped with the blow-down nozzle; the blow-down nozzle faces downwards, and the limiting plate is conveyed by the synchronous annular belt to pass directly below the blow-down nozzle, and the blow-down nozzle is used to blow air onto the limiting plate.

6. A cleaning device for the corners of beverage packaging boxes according to claim 1, characterized in that, The impurity removal hose is a malleable PU hose.

7. A cleaning device for the corners of beverage packaging boxes according to claim 1, characterized in that, Also includes: Position sensing device; The air blowing mechanism also includes: a solenoid valve; The solenoid valve is installed on the impurity removal hose; The positioning sensor is located beside the material conveying mechanism, with its sensing end horizontally facing the conveying end of the material conveying mechanism. The limiting frame moves past the positioning sensor. The positioning sensor is communicatively connected to the solenoid valve and is used to open or close the solenoid valve.

8. A cleaning device for the corners of beverage packaging boxes according to any one of claims 1-7, characterized in that, Also includes: Angular guide component; The angled guide is located beside the conveying end of the material transfer mechanism; The corner guide extends upward from low to high along the conveying direction of the material transfer mechanism and gradually protrudes above the conveying end of the material transfer mechanism; the packaging corner of the cutout moves to contact the corner guide, and the corner guide is used to guide the packaging corner to rotate and adjust to be close to the side of the beverage packaging box.

9. A milk packaging carton processing line, characterized in that, A cleaning device for the corners of a beverage packaging box as described in any one of claims 1-8 is provided.

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