Hot melt adhesive corner labeling machine

Abstract

The present invention relates to the technical field of labeling machinery, and more specifically, to a hot melt adhesive corner labeling machine, including a fixed frame, a conveying assembly, a label feeding assembly, a cutter assembly, a glue spraying assembly for spraying hot melt adhesive onto label paper, and a label supporting assembly, wherein the label feeding assembly, the cutter assembly, the glue spraying assembly and the label supporting assembly are all installed on the fixed frame, and the fixed frame is installed beside the conveying assembly; the label feeding assembly includes a label storage tray, a label feeding wheel group and a label feeding plate, the label paper is rotatably arranged on the label storage tray, one end of the label paper passes through the label feeding wheel group and is closely attached to the label feeding plate, and the cutter assembly is arranged between the label feeding wheel group and the label feeding plate; the glue spraying assembly is provided with a glue spraying head arranged directly opposite to the label feeding plate, and the label feeding plate can be top-connected to a powder bag; the label supporting assembly is arranged in front of the label feeding plate, and the label supporting assembly can be movably pressed onto the surface of the label paper until the label paper and the powder bag are closely attached. The powder bag of the present invention automatically applies labels when it pushes the label feeding plate, and automatically supports the label when the powder bag pushes the label supporting assembly, and the working process is simple and the automation level is high.

Description

Technical Field

[0001] The present invention relates to the technical field of labeling machinery, and more specifically, to a hot melt adhesive corner labeling machine. Background Art

[0002] In the construction industry, powdered raw materials such as putty powder and gypsum powder are often packaged with valve mouth tape. In order to protect the valve mouth from damage and leakage during transportation, labels are pasted at the corners to seal it. Since the surface of such packaging bags is rough and has a lot of dust, common self-adhesive labels are difficult to stick firmly. Hot melt adhesive labels contain more colloids, are thicker, and have low requirements for the cleanliness of the sticking surface. They stick firmly and have good effects.

[0003] Chinese patent CN201611213023.6 discloses a high-speed hot melt adhesive labeling machine. When working, the working label enters the label feeding device through the automatic label receiving device, and the working label enters the label cutting device under the action of the label feeding device. The label cutting device cuts the label as needed and then conveys it to the rubber roller device through the labeling device. The rubber roller device is used to apply adhesive to the cut label, and then conveys it to the bottle support device under the action of the labeling device. At the same time, the bottle is continuously conveyed to the bottle support device under the action of the bottle feeding device, and the label is attached to the bottle under the action of the labeling device of the bottle support device. Although the above scheme can realize automatic labeling, its applicable occasions are limited. It is suitable for labeling the outer periphery of the bottle body or other cylinders, and for the corner position of the powder bag, it cannot obtain accurate, stable and reliable labeling effect. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a hot melt adhesive corner labeling machine that can realize automatic labeling and automatic labeling at the corners of powder packages, has a high level of automation, and can effectively improve production efficiency.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A hot melt adhesive corner labeling machine is provided, which is arranged beside a conveying component, on which a powder bag is conveyed; the hot melt adhesive corner labeling machine comprises a fixed frame, a conveying component for conveying the powder bag, a label feeding component for conveying label paper, a cutter component for cutting the label paper, a glue spraying component for spraying hot melt adhesive on the label paper, and a label supporting component for closely attaching the label paper to the corner position of the powder bag, wherein the label feeding component, the cutter component, the glue spraying component and the label supporting component are all installed on the fixed frame, The fixed frame is installed beside the conveying component; the label delivery component includes a label storage tray, a label delivery wheel group and a label delivery plate, the label paper is rotatably arranged on the label storage tray, one end of the label paper passes through the label delivery wheel group and is tightly attached to the label delivery plate, and the cutter assembly is arranged between the label delivery wheel group and the label delivery plate; the glue spraying assembly is provided with a glue spraying head arranged opposite to the label delivery plate, and the label delivery plate can be top-connected to the powder bag; the label supporting assembly is arranged in front of the label delivery plate, and the label supporting assembly can be movably pressed onto the surface of the label paper until the label paper and the powder bag are tightly attached.

[0007] In the hot melt adhesive corner labeling machine of the present invention, the powder pack enters the conveying component from the previous process interval, the label paper roll is rotated and arranged on the label storage plate, one end of the label paper is conveyed forward to the label delivery plate via the label delivery wheel group and is closely attached to the surface of the label delivery plate; the cutter component is actuated to cut the label paper to obtain the label paper, and the label paper is closely attached to the surface of the label delivery plate; the glue spraying head is actuated to spray the hot melt adhesive evenly on the surface of the label paper, and when the front side of the powder pack is in contact with the label delivery plate, the label paper is adhered to the front side of the powder pack; then, the powder pack and the label paper are conveyed forward together, and the label supporting component will press the label paper, so that the label paper is closely attached to the front and side of the powder pack, that is, the corner position of the powder pack. The powder pack of the present invention automatically applies labels when pushing the label delivery plate, and automatically supports the label when the powder pack pushes the label supporting component. The working process is simple, the automation level is high, and the production efficiency can be effectively improved.

[0008] Furthermore, the label feeding wheel group includes a driving wheel, a driven wheel and a plurality of bypass wheels, the driving wheel and the driven wheel are both installed on a fixed frame, one end of the label paper passes through the driving wheel and the driven wheel after bypassing a plurality of bypass wheels, the driving wheel is connected to a driving motor, and the driving wheel is in close contact with the outer periphery of the driven wheel.

[0009] Furthermore, a plurality of air holes are provided on the side of the label delivery plate, and the label delivery plate is connected to a vacuum air pipe externally connected to a vacuum air source, and one end of the label paper can be adsorbed on the side of the label delivery plate.

[0010] Furthermore, the label delivery plate is vertically connected to a fixed plate, the glue spraying head is arranged opposite to the label delivery plate, and the fixed plate is connected to a first cylinder.

[0011] Furthermore, the label delivery plate is hingedly connected to the fixed plate, and the label delivery plate is connected to a first elastic cylinder, one end of the first elastic cylinder is connected to the label delivery plate, and the other end of the first elastic cylinder is fixedly connected to the fixed plate through a mounting seat.

[0012] Furthermore, the first elastic cylinder is provided with a sensing switch, the sensing switch is connected to an input end of a controller, and the first cylinder is connected to an output end of the controller.

[0013] Furthermore, the cutter assembly includes a stationary knife, a movable knife and a second cylinder. The stationary knife and the second cylinder are fixed to a fixed frame. The movable knife is connected to the second cylinder. The movable knife is hinged to the stationary knife. One end of the label paper passes between the stationary knife and the movable knife.

[0014] Furthermore, the stationary knife is fixed to the fixing frame through a knife fixing seat, and the knife fixing seat is provided with a through hole for allowing the label paper to pass through; one end of the first driving cylinder is fixed to the fixing frame through a cylinder fixing seat, and the other end of the first driving cylinder is hinged to the movable knife.

[0015] Furthermore, the outer edge of the through hole is flush with the edge of the static knife, a guide block is provided on the side of the knife fixing frame, and the outer side of the bottom of the movable knife is attached to the guide block.

[0016] Furthermore, the sign-supporting assembly includes a sign-supporting roller, an axle, and a swing arm, the sign-supporting roller is rotatably mounted on the axle, the axle is connected to one end of the swing arm, and the other end of the swing arm is hinged to a fixed frame; the swing arm is hinged with a second elastic cylinder, and the second elastic cylinder is mounted on the fixed frame.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The present invention automatically labels when the powder bag pushes the label feeding plate, and automatically supports the label when the powder bag pushes the label supporting component. The working process is simple, the automation level is high, and the production efficiency can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional picture of a hot melt adhesive corner labeling machine;

[0020] Figure 2 It is a top view of the hot melt adhesive corner labeling machine;

[0021] Figure 3 It is a structural schematic diagram of the label delivery component, the cutter component, the glue spraying component and the label supporting structure;

[0022] Figure 4 is a schematic diagram of the structure of the cutter assembly;

[0023] In the attached drawings: 1-fixed frame; 2-conveying assembly; 3-label delivery assembly; 31-label storage tray; 32-label delivery wheel group; 321-driving wheel; 322-driven wheel; 323-winding wheel; 33-label delivery plate; 331-fixed plate; 34-vacuum air pipe; 35-first cylinder; 36-first elastic cylinder; 37-mounting seat; 4-cutter assembly; 41-static knife; 42-moving knife; 43-second cylinder; 44-tool fixing seat; 45-through hole; 46-cylinder fixing seat; 47-guide block; 5-glue spraying assembly; 6-label supporting assembly; 61-label supporting roller; 62-wheel axle; 63-swing arm; 64-second elastic cylinder; 65-fixed bracket; 66-connecting joint; 7-label support plate. DETAILED DESCRIPTION

[0024] The present invention is further described below in conjunction with specific implementation methods. The accompanying drawings are only used for exemplary descriptions and are only schematic diagrams, not actual drawings, and cannot be understood as limiting this patent; in order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0025] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] Example

[0027] like Figures 1 to 4The hot melt adhesive corner labeling machine of the present invention is shown as an embodiment of the hot melt adhesive corner labeling machine, which is arranged beside the conveying component 2, and the conveying component 2 conveys a powder bag; the hot melt adhesive corner labeling machine includes a fixed frame 1, a conveying component 2 for conveying the powder bag, a label feeding component 3 for conveying label paper, a cutter component 4 for cutting the label paper, a glue spraying component 5 for spraying hot melt adhesive on the label paper, and a label supporting component 6 for closely attaching the label paper to the corner position of the powder bag, and the label feeding component 3, the cutter component 4, the glue spraying component 5 and the label supporting component 6 are all installed on the fixed frame 1, and the fixed frame 1 It is installed beside the conveying component 2; the label delivery component 3 includes a label storage tray 31, a label delivery wheel group 32 and a label delivery plate 33, the label paper is rolled and the label paper is rotated on the label storage tray 31, one end of the label paper passes through the label delivery wheel group 32 and is tightly attached to the label delivery plate 33, and the cutter component 4 is arranged between the label delivery wheel group 32 and the label delivery plate 33; the glue spraying component 5 is provided with a glue spraying head arranged opposite to the label delivery plate 33, and the label delivery plate 33 can be connected to the powder bag; the label supporting component 6 is arranged in front of the label delivery plate 33, and the label supporting component 6 can be movably pressed on the surface of the label paper until the label paper and the powder bag are tightly attached.

[0028] During the implementation of this embodiment, the powder pack enters the conveying component 2 from the previous process interval, the label paper rotates and is arranged on the label storage plate 31, and one end of the label paper is conveyed forward to the label delivery plate 33 via the label delivery wheel group 32 and is closely attached to the surface of the label delivery plate 33; the cutter component 4 is actuated to cut the label paper to obtain the label paper, and the label paper is closely attached to the surface of the label delivery plate 33; the glue spraying head is actuated to spray the hot melt adhesive evenly on the surface of the label paper, and when the front of the powder pack is in contact with the label delivery plate 33, the label paper is adhered to the front of the powder pack; then, the powder pack and the label paper are conveyed forward together, and the label support component 6 will press the label paper so that the label paper is closely attached to the front and side of the powder pack, that is, the corner position of the powder pack. During the implementation, the powder pack automatically applies the label when pushing the label delivery plate 33, and automatically supports the label when pushing the label support component 6, and the working process is simple.

[0029] In one embodiment, the conveying assembly 2 adopts a conveying form of a conveyor belt, which is wound around the outer circumference of the driving wheel and the driven wheel. The driving wheel 321 is driven by a driving motor to rotate, and the conveyor belt transports the powder bag forward.

[0030] In one embodiment, the label feeding wheel group 32 includes a driving wheel 321, a driven wheel 322 and a plurality of winding wheels 323. The driving wheel 321 and the driven wheel 322 are both installed on the fixed frame 1. One end of the label paper passes through the driving wheel 321 and the driven wheel 322 after passing through the plurality of winding wheels 323. The driving wheel 321 is connected to a driving motor, and the outer periphery of the driving wheel 321 and the driven wheel 322 are in close contact.

[0031] The label paper is rolled into a roll, and the roll of label paper can be rotatably placed on the label storage tray. In this embodiment, a rotating shaft can be set on the label storage tray. When the label paper is rolled, a rotating hole is left at the center of the label paper roll. The installation of the label roll paper can be completed by inserting the rotating shaft into the rotating hole. The operation is simple and convenient, and it is convenient to replace the label paper. The label storage tray of this embodiment is installed on the side of the fixed frame 1. The fixed frame 1 is a frame structure. This arrangement is a preferred embodiment made to reduce the material used for the fixed frame 1 and reduce the volume occupied by the fixed frame 1, and it is not a restrictive provision of the present invention.

[0032] The free end of a roll of label paper passes around the winding wheel 323 until it passes between the driving wheel 321 and the driven wheel 322. The number and position of the winding wheel 323 are not restrictive provisions of the present invention and can be set according to actual application needs. The driving motor in this embodiment is a servo motor. The driving wheel 321 is tightly attached to the outer periphery of the driven wheel 322. The servo motor drives the driving wheel 321 to rotate. In this way, the length of the label pulled out each time can be determined by controlling the rotation angle of the servo motor each time it works, and the length of the label pulled out each time can be ensured to be accurate and consistent.

[0033] In one embodiment, a plurality of air holes are provided on the side of the label delivery plate 33, and the label delivery plate 33 is connected to a vacuum air pipe 34 externally connected to a vacuum air source, and one end of the label paper can be adsorbed on the side of the label delivery plate 33. The label delivery plate 33 is hollow inside and is connected to the vacuum air pipe 34 and the vacuum air source. When the vacuum air source is working, the free end of the label paper can be tightly adsorbed on the surface of the label delivery plate 33, so that it is convenient for the cutter assembly 4 to cut the label paper. After the label paper is cut, the label paper can still be stably adsorbed on the surface of the label delivery plate 33. The use of vacuum adsorption to fix the free end of the label paper is a preferred method for simplicity of structure, ease of implementation, and no influence on other working processes, and is not a limiting provision of the present invention. Other fixing structures that can fix the free end of the label paper can also be applied to the present invention.

[0034] In one embodiment, the label delivery plate 33 is vertically connected to the fixing plate 331, the glue spraying head is arranged opposite to the label delivery plate 33, and the fixing plate 331 is connected to the first cylinder 35, such as Figure 3 As shown. The first cylinder 35 drives the label delivery plate 33 and the fixed plate 331 to extend forward, and the powder bag is transported forward. When the powder bag is transported to the front side and contacts the label delivery plate 33, the label paper is bonded to the front side of the powder bag; after the bonding is completed, the first cylinder 35 contracts, driving the label delivery plate 33 and the fixed plate 331 to return to their original positions. The glue spraying assembly 5 adopts the existing hot melt glue spraying assembly 5. During the extension of the first cylinder 35, the label on the label delivery plate 33 passes over the glue spraying head, and the glue spraying head sprays glue, so that the hot melt glue can be evenly sprayed on the label surface; during this process, the glue spraying head can be stationary.

[0035] In one embodiment, the label delivery plate 33 is hingedly connected to the fixed plate 331, and the label delivery plate 33 is connected to a first elastic cylinder 36, one end of the first elastic cylinder 36 is connected to the label delivery plate 33, and the other end of the first elastic cylinder 36 is fixedly connected to the fixed plate 331 through a mounting seat 37, such as Figure 3 As shown. Specifically, the label delivery plate 33 and the fixed plate 331 are hinged by a rotating pin, and the label delivery plate 33 can swing around the rotating pin; when the first cylinder 35 drives the fixed plate 331 to extend and retract toward the conveying assembly 2, the fixed plate 331, the label delivery plate 33 and the first elastic cylinder 36 move forward and backward together; when the powder bag moves to just touch the label paper on the label delivery plate 33, the label paper is bonded to the front of the powder bag; the powder bag continues to move forward, and the label delivery plate 33 swings around the rotating pin, compressing the first elastic cylinder 36, and at the same time, under the action of the label delivery plate 33, the label paper is bonded to the side of the powder bag. In order to improve the adaptability of the label delivery plate 33 to the transition of the corner position of the powder bag, this embodiment is provided with an inclined surface at the end of the label delivery plate 33. The setting of the first elastic cylinder 36 in this embodiment can play a buffering role in the top connection between the powder bag and the label delivery plate 33, avoiding damage to components caused by repeated impacts. In addition, the contraction degree of the first elastic cylinder 36 can also be used as a control signal for the action of the first cylinder 35. It should be noted that, in this embodiment, an elastic member may be directly connected between the label delivery plate 33 and the fixing plate 331 to play a role in buffering and providing input signals.

[0036] When the first elastic cylinder 36 acts as a buffer and provides an input signal at the same time, the first elastic cylinder 36 is provided with an induction switch, which is connected to the input end of the controller, and the first cylinder 35 is connected to the output end of the controller. When the first elastic cylinder 36 retracts to the set value, the induction switch of the first elastic cylinder 36 is triggered, thereby triggering the first cylinder 35 to retract to the initial position. The controller in this embodiment can be built into the first cylinder 35, or it can be an electric control box of the labeling machine.

[0037] In one embodiment, the cutter assembly 4 includes a stationary knife 41, a movable knife 42 and a second cylinder 43. The stationary knife 41 and the second cylinder 43 are fixed to the fixing frame 1. The movable knife 42 is connected to the second cylinder 43. The movable knife 42 is hinged to the stationary knife 41. One end of the label paper passes through between the stationary knife 41 and the movable knife 42. Figure 4As shown. Specifically, the stationary knife 41 is installed upright on the base and the ends of the stationary knife 41 and the movable knife 42 are hinged by a rotating pin: when the second cylinder 43 contracts, it drives the movable knife 42 to rotate around the rotating pin, and the stationary knife 41 and the movable knife 42 are separated by a certain angle, and the label paper passes through; when the second cylinder 43 extends, it drives the movable knife 42 to rotate around the rotating pin, and the blades of the stationary knife 41 and the movable knife 42 cooperate to cut the label paper. In this embodiment, the stationary knife 41 is fixed to the fixing frame 1 through a knife fixing seat 44, and the knife fixing seat 44 is provided with a through hole 45 for the label paper to pass through; one end of the first driving cylinder is fixed to the fixing frame 1 through a cylinder fixing seat 46, and the other end of the first driving cylinder is hinged to the movable knife 42. Before the label paper is cut, the label paper passes through the through hole 45 of the cutter fixing seat 44, which guides and positions the label paper; after the label paper is cut, due to a certain distance between the label feeding plate 33 and the cutter assembly 4, the cut label paper is partially adsorbed on the label feeding plate 33 and partially extends out of the label feeding plate 33. In order to prevent the cut label paper from curling or deforming, a label support plate 7 is provided between the label feeding plate 33 and the cutter assembly 4 in this embodiment, and the label paper is partially attached to the label support plate 7 and partially adsorbed on the label feeding plate 33. In addition, in order to ensure the stability of the action of the cutter assembly 4, the outer edge of the through hole 45 in this embodiment is flush with the edge of the static knife 41, and a guide block 47 is provided beside the cutter fixing frame 1, and the outer side of the bottom of the movable knife 42 is attached to the guide block 47, so that the movable knife 42 can move smoothly.

[0038] In one embodiment, the supporting mark assembly 6 includes a supporting mark roller 61, a wheel shaft 62, and a swing arm 63. The supporting mark roller 61 is rotatably mounted on the wheel shaft 62. The wheel shaft 62 is connected to one end of the swing arm 63. The other end of the swing arm 63 is hinged to the fixed frame 1. The swing arm 63 is hinged with a second elastic cylinder 64. The second elastic cylinder 64 is installed on the fixed frame 1. Figure 3 As shown. Specifically, a fixed bracket 65 is installed on the fixed frame 1, the other end of the swing arm 63 is hinged to the fixed bracket 65 through a bearing, and the output end of the second elastic cylinder 64 is hinged to the swing arm 63 through a bearing. In order to obtain a compact structure, the swing arm 63 and the second elastic cylinder 64 of this embodiment are both arranged perpendicular to the conveying direction, and a joint 66 is connected between the swing arm 63 and the second elastic cylinder 64 to ensure the action of the second elastic cylinder 64 on the swing arm 63. The present invention can set the distance between the cutter assembly 4 and the label delivery plate 33 in the initial state and the size of the label delivery plate 33 to control the length of the label paper adsorbed on the label delivery plate 33 and the length of the label paper extending out of the label delivery plate 33, and the length of the label paper adhered to the front and side of the powder bag is controlled by controlling the distance that the label delivery plate 33 extends.

[0039] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A hot melt adhesive corner labeling machine, arranged beside a conveying component (2), on which a powder bag is conveyed; characterized in that: The hot melt adhesive corner labeling machine comprises a fixed frame (1), a label feeding component (3) for conveying label paper, a cutter component (4) for cutting the label paper, a glue spraying component (5) for spraying hot melt adhesive on the label paper, and a label supporting component (6) for closely attaching the label paper to the corner position of the powder bag, wherein the label feeding component (3), the cutter component (4), the glue spraying component (5) and the label supporting component (6) are all installed on the fixed frame (1), and the fixed frame (1) is installed beside the conveying component (2); the label feeding component (3) comprises a label storage tray (31), a label feeding wheel group (32) and a label feeding plate (33), the label paper is rotatably arranged on the label storage disk (31), one end of the label paper passes through the label delivery wheel group (32) and is closely attached to the label delivery plate (33), the cutter assembly (4) is arranged between the label delivery wheel group (32) and the label delivery plate (33); the glue spraying assembly (5) is provided with a glue spraying head arranged directly opposite to the label delivery plate (33), and the label delivery plate (33) can be top-connected to the powder bag; the label supporting assembly (6) is arranged in front of the label delivery plate (33), and the label supporting assembly (6) can be movably pressed on the surface of the label paper until the label paper and the powder bag are closely attached; the label delivery plate (33) is vertically connected to the fixing plate (33) 1), the fixed plate (331) is connected to a first cylinder (35); the label delivery plate (33) is hingedly connected to the fixed plate (331), the label delivery plate (33) is connected to a first elastic cylinder (36), one end of the first elastic cylinder (36) is connected to the label delivery plate (33), and the other end of the first elastic cylinder (36) is fixedly connected to the fixed plate (331) via a mounting seat (37); the label supporting assembly (6) comprises a label supporting roller (61), a wheel shaft (62), and a swing arm (63), the label supporting roller (61) is rotatably mounted on the wheel shaft (62), and the wheel shaft (62) is connected to one end of the swing arm (63), and the other end of the swing arm (63) is hinged to the fixed frame (1); the swing arm (63) is hinged with a second elastic cylinder (64), and the second elastic cylinder (64) is installed on the fixed frame (1); the first elastic cylinder (36) is provided with an induction switch, and the induction switch is connected to the input end of the controller, and the first cylinder (35) is connected to the output end of the controller; a label support plate (7) is provided between the label feeding plate (33) and the cutter assembly (4), and the label paper is partially attached to the label support plate (7) and partially adsorbed on the label feeding plate (33).

2. The hot melt adhesive corner labeling machine according to claim 1, characterized in that: The label feeding wheel group (32) comprises a driving wheel (321), a driven wheel (322) and a plurality of winding wheels (323); the driving wheel (321) and the driven wheel (322) are both mounted on a fixed frame (1); one end of the label paper passes between the driving wheel (321) and the driven wheel (322) after passing through the plurality of winding wheels (323); the driving wheel (321) is connected to a driving motor; the outer circumference of the driving wheel (321) and the driven wheel (322) are in close contact.

3. The hot melt adhesive corner labeling machine according to claim 2, characterized in that: A plurality of air holes are provided on the side of the label delivery plate (33), and the label delivery plate (33) is connected to a vacuum air pipe (34) externally connected to a vacuum air source, so that one end of the label paper can be adsorbed on the side of the label delivery plate (33).

4. The hot melt adhesive corner labeling machine according to any one of claims 1 to 3, characterized in that: The cutter assembly (4) comprises a stationary knife (41), a movable knife (42) and a second cylinder (43); the stationary knife (41) and the second cylinder (43) are fixed to a fixed frame (1); the movable knife (42) is connected to the second cylinder (43); the movable knife (42) and the stationary knife (41) are hingedly connected; one end of the label paper passes between the stationary knife (41) and the movable knife (42).

5. The hot melt adhesive corner labeling machine according to claim 4, characterized in that: The stationary knife (41) is fixed to the fixing frame (1) via a knife fixing seat (44), and the knife fixing seat (44) is provided with a through hole (45) for allowing label paper to pass through; one end of the second cylinder (43) is fixed to the fixing frame (1) via a cylinder fixing seat (46), and the other end of the second cylinder (43) is hinged to the movable knife (42).

6. The hot melt adhesive corner labeling machine according to claim 5, characterized in that: The outer edge of the through hole (45) is flush with the edge of the stationary knife (41); a guide block (47) is provided beside the knife fixing seat (44); and the outer side of the bottom of the movable knife (42) is in contact with the guide block (47).

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