Card paper labeling machine

Abstract

The invention discloses a paperboard labeling machine which comprises an assembly mounting cover and a label tape mounting disc assembly, a first label tape guide shaft, a second label tape guide shaft, a label separation back knife assembly, a label tape pressing plate assembly and a label tape pulling assembly which are arranged on the front side of the assembly mounting cover, and an operation platform is arranged at the top end of the assembly mounting cover; a limiting adjusting assembly is arranged on the rear portion of the operation platform. A labeling opening is formed in the front portion of the operation platform, a paperboard positioning push head assembly is arranged on one side of the labeling opening, a paperboard pressing frame is arranged above the labeling opening, and the paperboard pressing frame is located below the paperboard positioning push head assembly. A label pressing wheel assembly is arranged under the labeling opening, and an extrusion labeling position is formed between the paperboard pressing frame and the label pressing wheel assembly. According to the paperboard labeling machine, packaging paperboards of single-bottle small-capacity products can be sealed and labeled, the labeling quality can be greatly improved, and the packaging paperboard labeling uniformity and the overall appearance quality can be greatly improved.

Description

Technical Field

[0001] The invention relates to a cardboard labeling machine. Background Art

[0002] In order to ensure the beautiful packaging of some small-volume products, such as single-use essences, injections, and small samples, and to prevent them from being damaged or scratched during transportation, the products are wrapped in cardboard, the cardboard is folded, and labels are affixed at the ports. This process is currently completed manually, and the cardboard has low neatness, inconsistent labeling sizes, and low efficiency. The present invention. Summary of the invention

[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a cardboard labeling machine, which can greatly improve the production speed compared with the existing manual labeling, and the uniformity of the packaging cardboard labeling and the overall appearance quality can be greatly improved by limiting the uniformity of the cardboard labeling and the limitation of the labeling position and the force size.

[0004] The technical solution to achieve the above purpose is: a cardboard labeling machine, including a component installation cover and a label tape installation disk assembly arranged on the front side thereof, a label tape guide shaft 1, a label tape guide shaft 2, a label separation back knife assembly, a label tape pressure plate assembly and a label tape pulling assembly, wherein:

[0005] An operating platform is provided at the top of the component mounting cover;

[0006] A limit adjustment component is provided at the rear of the operating platform;

[0007] A labeling opening is provided at the front of the operating platform, a positioning jammed paper pusher assembly is provided on one side of the labeling opening, a jammed paper pressing frame is provided above the labeling opening, and the jammed paper pressing frame is located below the positioning jammed paper pusher assembly, and an optical fiber sensor is provided on the jammed paper pressing frame;

[0008] A label pressing wheel assembly is arranged directly below the labeling port, and a pressing labeling position is formed between the paper pressing frame and the label pressing wheel assembly;

[0009] The label tape pulling assembly and the label tape installation plate assembly are arranged one above the other;

[0010] The label detaching back knife assembly and the label tape pressing plate assembly are adjacently arranged below the labeling port;

[0011] The second label belt guide shaft is located below the label separation back knife assembly, and the first label belt guide shaft is located below the second label belt guide shaft.

[0012] The above-mentioned cardboard labeling machine, wherein the label tape is installed on the label tape installation disk assembly, one end of the label tape passes around the label tape guide shaft one counterclockwise, and then passes around the label tape guide shaft two clockwise, and the label tape extends upward and passes around the label detachment back knife assembly counterclockwise, and the label tape pressing plate assembly presses the label tape onto the label detachment back knife assembly. When the label tape passes around the label detachment back knife assembly, the label on the label tape will gradually detach from the label tape upward. When the label tape passes around the label detachment back knife assembly, the back of a part of the label detached from the label tape is first attached to the positioning cardboard pushing head assembly, and the overlapping part of the folded cardboard presses the positioning cardboard pushing head assembly, and the side of the cardboard presses the limit adjustment assembly. As the positioning cardboard pushing head assembly moves, the label that has not yet detached from the label tape is embedded between the cardboard pressing frame and the label pressing wheel assembly together with the cardboard. Under the action of the extrusion force, the labeling is completed, and the label tape after detaching from the label extends to the label tape pulling assembly, and the label tape pulling assembly guides the label tape after detaching from the label.

[0013] In the above-mentioned cardboard labeling machine, the operating platform is arranged on the top of the component mounting cover through a horizontal support adjustment component; and horizontal support adjustment blocks are respectively arranged on the left and right sides of the bottom end of the operating platform.

[0014] The above-mentioned cardboard labeling machine, wherein the label tape mounting disk assembly is composed of a transparent limiting disk, a disk rotating shaft, a fixing ring and a rotating lining, the transparent limiting disk is rotatably mounted on the disk rotating shaft, the disk rotating shaft is fixed to the front side of the assembly mounting cover by screws, the fixing ring is arranged at the connection between the transparent limiting disk and the disk rotating shaft, and the rotating lining is arranged on the inner side of the transparent limiting disk.

[0015] In the above-mentioned cardboard labeling machine, the limit adjustment component is composed of a limit plate and an adjustment bolt arranged thereon, a longitudinal long hole is opened on the limit plate, and the adjustment bolt passes through the longitudinal long hole and is connected to the operating platform.

[0016] The above-mentioned cardboard labeling machine, wherein the label detachment back knife assembly is composed of a limit seat, a T-shaped support frame, a support rod, a sliding pressure plate and a pressure plate fixed back plate, the limit seat is fixed to the front side of the component mounting cover by screws, the T-shaped support frame is arranged at the front end of the limit seat, the front end of the support rod is connected to the T-shaped support frame, the sliding pressure plate is arranged at the top end of the limit seat so as to be movable up and down through the pressure plate fixed back plate, and the sliding pressure plate is arranged at an angle.

[0017] The above-mentioned cardboard labeling machine, wherein the label tape pressure plate assembly includes a polyurethane pressure plate, an adjustment frame and a rotating shaft, the polyurethane pressure plate is arranged on the rotating shaft, the adjustment frame is arranged at the rear end of the rotating shaft, the adjustment frame is arranged on the front side of the component mounting cover, an inclined strip hole is opened on the adjustment frame, the adjustment frame is connected to the front side of the component mounting cover through the adjustment bolt head arranged in the inclined strip hole, and the top end of the polyurethane pressure plate is in conflict with the sliding pressure plate.

[0018] The above-mentioned paperboard labeling machine, wherein the paperboard pressing frame is a U-shaped frame, and the optical fiber sensor is arranged at the open end of the paperboard pressing frame; the paperboard pressing frame is installed on the top of the operating platform;

[0019] The label pressing wheel assembly comprises a lower pressing wheel arranged longitudinally and pressing wheel mounting rods arranged at the front and rear ends of the lower pressing wheel; the pressing wheel mounting rods are connected to the bottom end of the operating platform;

[0020] The closed end of the cardboard pressing frame is located directly above the lower pressing wheel of the label pressing wheel assembly, and a pressing labeling position is formed between the two.

[0021] The above-mentioned cardboard labeling machine, wherein the positioning cardboard pusher assembly is composed of a telescopic plate, a guide shaft, a compression spring, a linear bearing and a reverse limit plate, the guide shaft is sleeved on the linear bearing; the telescopic plate is arranged at one end of the guide shaft, and the reverse limit plate is arranged at the other end of the guide shaft; the compression spring is sleeved on the guide shaft and is located between the telescopic plate and the linear bearing; the linear bearing is fixed on the top of the operating platform.

[0022] The above-mentioned cardboard labeling machine, wherein, when the labels on the label tape gradually detach from the label tape upward, the back of a part of the labels detached from the label tape is first attached to the telescopic plate of the positioning cardboard pusher head assembly, and the overlapping part of the folded cardboard presses against the telescopic plate of the cardboard pusher head assembly, and the side of the cardboard presses against the limit adjustment assembly, and the cardboard is pushed along the compression direction of the compression spring on the guide shaft, and the labels that are backed on the telescopic plate and have not yet detached from the label tape are embedded between the lower pressure wheel of the label pressure wheel assembly and the cardboard pressing frame, and the labeling is completed under the action of the extrusion force.

[0023] The above-mentioned cardboard labeling machine, wherein the label tape pulling component is composed of a pressure wheel mounting frame, an active pressure wheel, a driven pressure wheel, a stepper motor and a label tape guide plate, the pressure wheel mounting frame is fixed to the front side of the component mounting cover, the active pressure wheel and the driven pressure wheel are respectively arranged in the pressure wheel mounting frame, the front side of the component mounting cover is provided with a motor mounting hole, the stepper motor is arranged in the component mounting cover, and the output shaft of the stepper motor passes through the motor mounting hole and is connected to the active pressure wheel; the label tape guide plate is arranged at the bottom of the pressure wheel mounting frame and is located below the driven pressure wheel.

[0024] In the above-mentioned cardboard labeling machine, the label tape after being separated from the label passes around the active pressure wheel counterclockwise, and then passes around the driven pressure wheel clockwise to be guided out through the label guide plate.

[0025] The cardboard labeling machine of the present invention drives the active pressure wheel to convey the label tape through the stepping motor. When the label tape is conveyed to the detection position of the optical fiber sensor, the optical fiber sensor detects the sealing label and feeds back a signal to the stepping motor. The stepping motor stops working and the label tape stops conveying. The packaging cardboard is manually placed on the operating platform and the cardboard is pushed into the labeling port to complete the packaging cardboard labeling. Quantitative labeling can be achieved, and the cardboard to be labeled is limited to ensure the neatness of the cardboard and the consistency of the labeling size. The labeling mechanism has an automatic rebound function and cooperates with the pressure wheel mechanism to ensure the labeling efficiency and the tightness of the labeling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of the cardboard labeling machine of the present invention;

[0027] Figure 2 It is a three-dimensional structural diagram of the cardboard labeling machine of the present invention;

[0028] Figure 3 It is an exploded structural diagram of the cardboard labeling machine of the present invention;

[0029] Figure 4 It is a schematic diagram of the working state structure of the label tape pressing plate assembly and the label separation back knife assembly;

[0030] Figure 5 It is a structural schematic diagram of a label tape pressing plate assembly and a positioning jam paper pushing head assembly;

[0031] Figure 6 It is a structural schematic diagram of the label belt pulling component. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the specific implementation methods thereof are described in detail below in conjunction with the accompanying drawings:

[0033] See also Figures 1 to 6 The best embodiment of the present invention is a cardboard labeling machine, including a component mounting cover 11 and a label tape mounting plate component 1, a label tape guide shaft 1 2, a label tape guide shaft 2 3, a label detaching back knife component 5, a label tape pressure plate component 4 and a label tape pulling component 8 arranged on the front side thereof.

[0034] An operating platform 10 is provided at the top of the component mounting cover 11; the operating platform 10 is provided at the top of the component mounting cover 11 through a horizontal support adjustment component 15; and a horizontal support adjustment block 14 and a horizontal support adjustment block 13 are respectively provided on the left and right sides of the bottom end of the operating platform 10.

[0035] A limit adjustment assembly 9 is provided at the rear of the operating platform 10; the limit adjustment assembly 9 consists of a limit plate 91 and an adjusting bolt 92 arranged thereon, a longitudinal long hole 93 is opened on the limit plate 91, and the adjusting bolt 92 passes through the longitudinal long hole 93 and is connected to the operating platform 10, and the front and rear position of the limit plate 91 can be adjusted by adjusting the position of the adjusting bolt 92 in the longitudinal long hole 93.

[0036] The front part of the operating platform 10 is provided with a labeling port 101, a positioning paper jam pusher assembly 6 is provided on one side of the labeling port 101, a paper jam pressing frame 7 is provided above the labeling port 101, and the paper jam pressing frame 7 is located below the positioning paper jam pusher assembly 6, and an optical fiber sensor 16 is provided on the paper jam pressing frame 7. A label pressing wheel assembly 12 is provided just below the labeling port 101, and a compression labeling position is formed between the paper jam pressing frame 7 and the label pressing wheel assembly 12. The overlapping part of the folded paper jam abuts against the positioning paper jam pusher assembly 6, and the side of the paper jam abuts against the limit plate 91 of the limit adjustment assembly 9. When the paper jam is pushed, the paper jam moves with the positioning paper jam pusher assembly, and the label that has not yet detached from the label tape is embedded between the paper jam pressing frame 7 and the label pressing wheel assembly 12 together with the paper jam, and the labeling is completed under the action of the compression force.

[0037] Specifically, the paper jam pressing frame 7 is a U-shaped frame, and the optical fiber sensor 17 is arranged at the open end of the paper jam pressing frame 7; the paper jam pressing frame 7 is installed on the top of the operating platform 10;

[0038] The label pressing wheel assembly 12 comprises a lower pressing wheel 121 arranged longitudinally and pressing wheel mounting rods 122 arranged at the front and rear ends of the lower pressing wheel; the pressing wheel mounting rods 122 are connected to the bottom end of the operating platform 10 .

[0039] The closed end of the cardboard pressing frame 7 is located directly above the lower pressing wheel 121 of the label pressing wheel assembly 12, and a pressing labeling position is formed between the two.

[0040] The positioning jammed paper pusher assembly 6 is composed of a telescopic plate 27, a guide shaft 28, a compression spring 29, a linear bearing 30 and a reverse limit plate 31. The guide shaft 28 is sleeved on the linear bearing 30; the telescopic plate 27 is arranged at one end of the guide shaft 28, and the reverse limit plate 31 is arranged at the other end of the guide shaft 28; the compression spring 29 is sleeved on the guide shaft 28 and is located between the telescopic plate 27 and the linear bearing 30; the linear bearing 30 is fixed to the top of the operating platform 10.

[0041] The overlapping part of the folded paper card presses against the telescopic plate 27 of the paper card pushing head assembly 6, and the side of the paper card presses against the limit plate 91 of the limit adjustment assembly 9, pushing the paper card along the compression direction of the compression spring 29 on the guide shaft 28, and the label that is backed against the telescopic plate 27 and has not yet detached from the label tape is embedded between the lower pressure wheel 121 of the label pressure wheel assembly 12 and the paper card pressing frame 7, and the labeling is completed under the action of the extrusion force.

[0042] The label tape pulling assembly 8 and the label tape mounting plate assembly 1 are arranged one above and one below; the label detachment back knife assembly 5 and the label tape pressing plate assembly 4 are adjacently arranged below the labeling port 101; the label tape guide shaft 2 3 is located below the label detachment back knife assembly 8, and the label tape guide shaft 1 2 is located below the label tape guide shaft 2 3.

[0043] The label tape is installed on the label tape installation disk assembly 1, one end of the label tape passes around the label tape guide shaft 1 2 counterclockwise, and then passes around the label tape guide shaft 2 3 clockwise, the label tape extends upward and passes around the label detachment back knife assembly 5 counterclockwise, the label tape pressure plate assembly 4 presses the label tape onto the label detachment back knife assembly 5, and the label on the label tape will gradually detach from the label tape upward when the label tape passes around the label detachment back knife assembly 5, and the label tape after detaching from the label extends to the label tape pulling assembly 8, and the label tape pulling assembly 8 guides the label tape after detaching from the label.

[0044] The label tape installation disk assembly 1 is composed of a transparent limiting disk 111, a disk rotating shaft 112, a fixing ring 113 and a rotating liner. The transparent limiting disk 111 is rotatably mounted on the disk rotating shaft 112. The disk rotating shaft 112 is fixed to the front side of the assembly installation cover 11 by screws. The fixing ring 113 is arranged at the connection between the transparent limiting disk 111 and the disk rotating shaft 112. The rotating liner is arranged inside the transparent limiting disk 111. The label tape installation disk assembly 1 is used to install the label tape.

[0045] The label detachment back knife assembly 5 is composed of a limit seat 17, a T-shaped support frame 18, a support rod 19, a sliding pressure plate 20 and a pressure plate fixed back plate 21. The limit seat 17 is fixed to the front side of the assembly mounting cover 11 by screws, the T-shaped support frame 18 is arranged at the front end of the limit seat 17, the front end of the support rod 19 is connected to the T-shaped support frame 18, and the sliding pressure plate 20 is arranged at the top of the limit seat 17 so as to be movable up and down through the pressure plate fixed back plate 17, and the sliding pressure plate 20 is arranged obliquely. The sliding pressure plate 20 can be adjusted up and down to adjust the position of the label detaching from the label belt.

[0046] The label tape pressing plate assembly includes a polyurethane pressing plate 22, an adjustment frame 23 and a rotating shaft 24. The polyurethane pressing plate 22 is arranged on the rotating shaft 24, the polyurethane pressing plate 22 is arranged tilted, the adjustment frame 23 is arranged at the rear end of the rotating shaft 24, the adjustment frame 23 is arranged at the front side of the component mounting cover 11, an inclined strip hole is opened on the adjustment frame 23, the adjustment frame 23 is connected to the front side of the component mounting cover 11 through an adjustment bolt head 32 arranged in the inclined strip hole, and the top end of the polyurethane pressing plate 22 is in conflict with the sliding pressing plate 20. By adjusting the position of the adjustment bolt head 32 in the inclined strip hole, the position of the adjustment frame 23 can be adjusted, and then the position of the polyurethane pressing plate 22 can be adjusted to ensure that the label tape slides along the sliding pressing plate 20.

[0047] The label tape pulling assembly 8 is composed of a pressure roller mounting frame 33, an active pressure roller 25, a driven pressure roller 26, a stepper motor 36 and a label tape guide plate 37. The pressure roller mounting frame 22 is fixed to the front side of the assembly mounting cover 11. The active pressure roller 25 and the driven pressure roller 16 are respectively arranged in the pressure roller mounting frame 11. The front side of the assembly mounting cover 11 is provided with a motor mounting hole 34. The stepper motor 36 is arranged in the assembly mounting cover 11, and the output shaft of the stepper motor 36 passes through the motor mounting hole 34 and is connected to the active pressure roller 25. The label tape guide plate 37 is arranged at the bottom of the pressure roller mounting frame 33 and is located below the driven pressure roller 26. The label tape after being separated from the label goes around the active pressure roller 25 counterclockwise, and then goes around the driven pressure roller 26 clockwise to lead out the label tape after being separated from the label through the label guide plate 28. The active pressure wheel 25 is driven by the stepper motor 36 to convey the label tape. When the label is conveyed to the detection position of the optical fiber sensor 16, the optical fiber sensor 16 detects the sealing label and feeds back a signal to the stepper motor 36. The stepper motor 36 stops working, the label tape stops conveying, and the packaging cardboard is manually placed on the operating platform for labeling.

[0048] The cardboard labeling machine of the present invention, when working, installs the label tape on the label tape installation disk assembly 1, the label tape passes around the label tape guide shaft 1 2 counterclockwise and then passes around the label tape guide shaft 2 3 clockwise, the label tape extends upward and passes around the label detachment back knife assembly 5 counterclockwise, the label tape pressing plate assembly 4 presses the label tape onto the label detachment back knife assembly 5, the polyurethane pressing plate 22 on the label tape pressing plate assembly 4 can adjust the pressing position through the inclined strip hole of the adjustment frame 23 and the rotating shaft 24 to ensure that the label tape slides along the sliding pressing plate 20, and when the label tape passes around the label detachment back knife assembly 5, the label on the label tape will gradually detach from the label tape upward, and the label will move to During the detachment process, the optical fiber sensor 16 will detect the label. The upward stop position of the label is determined by the delay after the optical fiber sensor 16 senses the label. The longer the delay, the longer the length of the label. The back of a part of the label detached from the label tape is attached to the telescopic plate 27 on the positioning cardboard pusher assembly 6. The sliding pressure plate 20 on the label detachment back knife assembly 5 can be adjusted up and down to adjust the position of the label detached from the label tape. The label tape after detaching from the label extends to the label tape pulling assembly 8; the label tape after detaching from the label bypasses the active pressure wheel 25 counterclockwise and then bypasses the driven pressure wheel 26 clockwise to export the label tape after detaching from the label through the label guide plate 28.

[0049] During operation, the active pressing wheel 25 is driven by the stepping motor 36 to convey the label tape. When the label tape is conveyed to the detection position of the optical fiber sensor 16, the optical fiber sensor 16 detects the sealing label and feeds back a signal to the stepping motor 36. The stepping motor 36 stops working, the label tape stops conveying, and the packaging card is manually placed on the operating platform. The overlapping part of the folded card is manually pressed against the telescopic plate 27 on the positioning card pushing head assembly 6, and the side of the card is pressed against the limit plate 91 of the limit adjustment assembly 9 to ensure the neatness of the folded card. The compression spring 29 on the shaft 28 pushes the paper jam in the compression direction, and the label that is backed by the telescopic plate 27 and has not yet detached from the label tape is embedded between the lower pressure wheel 121 and the paper jam pressing frame 7 together with the paper jam. The labeling is completed under the action of the extrusion force, and the labeled paper jam retreats. The telescopic plate 27 also retreats under the action of the compression spring 29. The reverse limit plate 31 can be equipped with a limit screw to limit the retreat position of the telescopic plate 27. After the optical fiber sensor 16 on the paper jam pressing frame 7 detects that there is no label, the label tape will continue to move into the next label waiting position.

[0050] In summary, the cardboard labeling machine of the present invention can complete the sealing and labeling of the packaging cardboard of a single bottle of small-capacity product. The production efficiency can be 4-5 times that of manual production, which can greatly improve the labeling quality and the uniformity of the packaging cardboard labeling and the overall appearance quality.

[0051] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present invention, and are not intended to limit the present invention. As long as they are within the spirit of the present invention, any changes or modifications to the above embodiments will fall within the scope of the claims of the present invention.

Claims

1. A cardboard labeling machine, characterized in that: It includes a component installation cover and a label tape installation plate component, a label tape guide shaft 1, a label tape guide shaft 2, a label separation back knife component, a label tape pressure plate component and a label tape pulling component arranged on the front side thereof, wherein: An operating platform is provided at the top of the component mounting cover; A limit adjustment component is provided at the rear of the operating platform; A labeling opening is provided at the front of the operating platform, a positioning jammed paper pusher assembly is provided on one side of the labeling opening, a jammed paper pressing frame is provided above the labeling opening, and the jammed paper pressing frame is located below the positioning jammed paper pusher assembly, and an optical fiber sensor is provided on the jammed paper pressing frame; A label pressing wheel assembly is arranged directly below the labeling port, and a pressing labeling position is formed between the paper pressing frame and the label pressing wheel assembly; The label tape pulling assembly and the label tape installation plate assembly are arranged one above the other; The label detaching back knife assembly and the label tape pressing plate assembly are adjacently arranged below the labeling port; The second label belt guide shaft is located below the label separation back knife assembly, and the first label belt guide shaft is located below the second label belt guide shaft.

2. A cardboard labeling machine according to claim 1, characterized in that: The label tape is installed on the label tape installation disk assembly, one end of the label tape passes around the label tape guide shaft 1 counterclockwise, and then passes around the label tape guide shaft 2 clockwise, and the label tape extends upward and passes around the label detachment back knife assembly counterclockwise, and the label tape pressing plate assembly presses the label tape onto the label detachment back knife assembly. When the label tape passes around the label detachment back knife assembly, the label on the label tape will gradually detach from the label tape upward, and the back of a part of the label detached from the label tape will first be attached to the positioning jam paper pushing head assembly, and the overlapping part of the folded paper jam will abut against the positioning jam paper pushing head assembly, and the side of the paper jam will abut against the limit adjustment assembly. As the positioning jam paper pushing head assembly moves, the label that has not yet detached from the label tape is embedded between the paper jam pressing frame and the label pressing wheel assembly together with the paper jam, and labeling is completed under the action of the extrusion force, and the label tape after detaching from the label extends to the label tape pulling assembly, and the label tape pulling assembly guides the label tape after detaching from the label.

3. A cardboard labeling machine according to claim 1, characterized in that: The operating platform is arranged on the top of the component installation cover through a horizontal support adjustment component; and horizontal support adjustment blocks are respectively arranged on the left and right sides of the bottom end of the operating platform.

4. A cardboard labeling machine according to claim 1, characterized in that: The label tape mounting disk assembly consists of a transparent limiting disk, a disk rotating shaft, a fixing ring and a rotating lining. The transparent limiting disk can be rotatably mounted on the disk rotating shaft. The disk rotating shaft is fixed to the front side of the assembly mounting cover by screws. The fixing ring is arranged at the connection between the transparent limiting disk and the disk rotating shaft. The rotating lining is arranged on the inner side of the transparent limiting disk.

5. The cardboard labeling machine according to claim 1, characterized in that: The limit adjustment assembly is composed of a limit plate and an adjustment bolt arranged thereon. A longitudinal long hole is opened on the limit plate, and the adjustment bolt passes through the longitudinal long hole and is connected to the operating platform.

6. The cardboard labeling machine according to claim 1, characterized in that: The label detachment back knife assembly is composed of a limit seat, a T-shaped support frame, a support rod, a sliding pressure plate and a pressure plate fixed back plate. The limit seat is fixed to the front side of the component mounting cover by screws, the T-shaped support frame is arranged at the front end of the limit seat, the front end of the support rod is connected to the T-shaped support frame, and the sliding pressure plate is arranged at the top end of the limit seat so as to be movable up and down through the pressure plate fixed back plate, and the sliding pressure plate is arranged at an angle.

7. A cardboard labeling machine according to claim 6, characterized in that: The label tape pressure plate assembly includes a polyurethane pressure plate, an adjustment frame and a rotating shaft, the polyurethane pressure plate is arranged on the rotating shaft, the adjustment frame is arranged at the rear end of the rotating shaft, the adjustment frame is arranged at the front side of the component mounting cover, an inclined strip hole is opened on the adjustment frame, the adjustment frame is connected to the front side of the component mounting cover through an adjustment bolt head arranged in the inclined strip hole, and the top end of the polyurethane pressure plate is in conflict with the sliding pressure plate.

8. The cardboard labeling machine according to claim 1, characterized in that: The paper jam pressing frame is a U-shaped frame, and the optical fiber sensor is arranged at the open end of the paper jam pressing frame; the paper jam pressing frame is installed on the top of the operating platform; The label pressing wheel assembly comprises a lower pressing wheel arranged longitudinally and pressing wheel mounting rods arranged at the front and rear ends of the lower pressing wheel; the pressing wheel mounting rods are connected to the bottom end of the operating platform; The closed end of the cardboard pressing frame is located directly above the lower pressing wheel of the label pressing wheel assembly, and a pressing labeling position is formed between the two.

9. The cardboard labeling machine according to claim 8, characterized in that: The positioning jammed paper pusher assembly is composed of a telescopic plate, a guide shaft, a compression spring, a linear bearing and a reverse limit plate. The guide shaft is sleeved on the linear bearing; the telescopic plate is arranged at one end of the guide shaft, and the reverse limit plate is arranged at the other end of the guide shaft; the compression spring is sleeved on the guide shaft and is located between the telescopic plate and the linear bearing; the linear bearing is fixed on the top of the operating platform.

10. The cardboard labeling machine according to claim 9, characterized in that: When the label on the label tape gradually detaches from the label tape upward, the back of a part of the label detached from the label tape is first attached to the telescopic plate of the positioning paper jam pushing head assembly, and the overlapping part of the folded paper jam abuts against the telescopic plate of the paper jam pushing head assembly, and the side of the paper jam abuts against the limit adjustment assembly, pushing the paper jam along the compression direction of the compression spring on the guide shaft, and the labels that are leaning on the telescopic plate and have not yet detached from the label tape are embedded between the lower pressure wheel of the label pressure wheel assembly and the paper jam pressing frame, and the labeling is completed under the action of the extrusion force.

11. The cardboard labeling machine according to claim 1, characterized in that: The label tape pulling component is composed of a pressure wheel mounting frame, an active pressure wheel, a driven pressure wheel, a stepper motor and a label tape guide plate. The pressure wheel mounting frame is fixed to the front side of the component mounting cover. The active pressure wheel and the driven pressure wheel are respectively arranged in the pressure wheel mounting frame. A motor mounting hole is arranged on the front side of the component mounting cover. The stepper motor is arranged in the component mounting cover, and the output shaft of the stepper motor passes through the motor mounting hole and is connected to the active pressure wheel. The label tape guide plate is arranged at the bottom of the pressure wheel mounting frame and is located below the driven pressure wheel.

12. A cardboard labeling machine according to claim 11, characterized in that: The label tape separated from the label goes around the active pressing wheel counterclockwise, and then goes around the driven pressing wheel clockwise to be guided out through the label guide plate.

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