Label printer

Abstract

The invention is suitable for the technical field of printing equipment, and provides a label printer which comprises an outer box body, a curved supporting plate is arranged in the outer box body and used for bearing a label roll, a gluing mechanism comprises a sleeve column and a glue box which are slidably connected, and the lower surface of label paper is dynamically glued through a gluing roller; the driving contact mechanism is in linkage with a spring through gear-toothed plate transmission, and only drives the gluing mechanism to make contact with label paper after the label roll is placed. The design ensures that the gluing mechanism is in a low position when the label roll is not installed, and glue pollution is avoided; and the label roll is pressed down to trigger the gluing mechanism to ascend and cooperatively work with the printing mechanism, so that the gluing amount is automatically matched with the paper conveying speed. Meanwhile, the dual-drive motor and guide wheel system ensures stable transmission of paper, and a lower cutter arranged at an output port improves the integrity of labels. The problems that traditional equipment is complex in procedure, low in glue control precision, difficult to maintain and the like are effectively solved, and the efficient label manufacturing requirements in the fields of logistics, storage and the like are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of printing equipment, and in particular relates to a label printer. Background Art

[0002] Label printers, essential equipment in modern office and logistics environments, are primarily used to produce labels with identifying information. Traditional label printers typically use a two-step process: printing first, then gluing. This requires the printed labels to be transferred separately to the gluing equipment for processing.

[0003] However, this step-by-step operation not only increases the complexity of the process, but also easily causes the label paper to be offset or wrinkled during the transfer process. In addition, during the installation of the label roll, the unfixed label paper is likely to come into contact with the gluing mechanism, causing glue contamination and material waste, affecting the quality of the final product. Summary of the Invention

[0004] The purpose of the present invention is to provide a label printer, which aims to solve the problem that in the current label printing process, the step-by-step operation not only increases the complexity of the process, but also easily causes the label paper to be positionally offset or wrinkled during the transfer process. In addition, during the installation of the label roll, the unfixed label paper is likely to come into contact with the gluing mechanism, causing glue contamination and material waste, thereby affecting the quality of the final product.

[0005] The present invention provides a label printer comprising an outer box with a placement port and an output port, and a printing mechanism installed inside the outer box. In addition, the label printer also has the following key parts:

[0006] Curved support plate:

[0007] It is located inside the outer box and is used to provide support for the label roll. In addition, the curved support plate is equipped with pulleys, which make the label paper more smoothly during transmission.

[0008] Gluing mechanism:

[0009] This mechanism is also located inside the outer box. Its function is to contact the lower surface of the label paper while printing on the upper surface of the label paper and apply glue to the lower surface of the label paper. Specifically, the gluing mechanism consists of the following components:

[0010] Pillar: Installed inside the outer box, with a sleeve column on the pillar that is slidably connected to it.

[0011] Glue box: Installed on the sleeve, the glue box is equipped with a set of rollers. These rollers are glue-coating rollers, which are located inside the glue box and contact the glue inside the box on one side, so as to apply glue when contacting the label paper.

[0012] Drive contact mechanism

[0013] This mechanism is also located inside the outer box and works in conjunction with the gluing mechanism. Its main function is to control the operation of the gluing mechanism after the label roll is placed inside the outer box, so that it contacts the lower surface of the label roll. The driving contact mechanism specifically includes:

[0014] Vertical platform: It is set inside the outer box body. The vertical platform is slidably connected to the driving slide. The driving slide is rotatably connected to the driving wheel. The vertical platform is also provided with a spring.

[0015] Driving gear: Rotatingly connected to the inside of the outer box, a driving gear plate is provided on one side of the driving slide, and the driving gear and the driving gear plate are engaged with each other.

[0016] Roller: rotatably connected to the interior of the outer box, a first transmission belt is sleeved between the roller and the driving gear.

[0017] Linkage gear: rotatably connected to the interior of the outer box, a second transmission belt is sleeved between the linkage gear and the roller.

[0018] Linkage tooth plate: installed on the side of the sleeve column, the linkage gear and the linkage tooth plate are engaged with each other.

[0019] Other components

[0020] Guide wheel: A guide wheel is installed inside the outer box to adjust the transmission direction of the label paper and ensure that the label paper can be transmitted along the preset path.

[0021] Dual drive motor: A dual drive motor is provided inside the outer box, and a set of opposing drive wheels are provided on the dual drive motors respectively. This set of opposing drive wheels can provide driving force for the transmission of label paper and ensure the smooth movement of label paper.

[0022] Lower cutter: A lower cutter is installed at the output port to cut the printed and glued label paper.

[0023] The label printer provided by the present invention has the following beneficial effects:

[0024] When using the label printer, you need to open the label roll first, insert the label paper at the end into the outer box through the placement port, and pull the end out from the output port. At this time, since the label roll has not yet been inserted, the driving contact mechanism will not drive the gluing mechanism to operate, and the gluing mechanism will not contact the label paper. Therefore, the label paper will not be stained with glue, and the situation where the label paper is not smeared with glue before it is installed is avoided, reducing unnecessary glue residue;

[0025] After the position of the label paper is adjusted, the label roll can be placed on the curved support plate in the outer box. After it is placed on the label roll, the downward pressure of the label roll will start the driving contact mechanism to operate, and the driving contact mechanism will drive the gluing mechanism to operate, so that the gluing mechanism contacts the lower surface of the placed label paper and completes the gluing during the movement of the label paper, and stops gluing when it does not move, avoiding excessive use of glue. The printing mechanism can print synchronously during the transmission of the label paper, thereby realizing the function of simultaneous label printing and glue application, and avoiding excessive use of glue and the situation where the label paper is smeared with glue before it is installed. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic structural diagram of a label printer provided by the present invention;

[0027] Figure 2 The internal structure of a label printer provided by the present invention Figure 1 ;

[0028] Figure 3 An internal side view of a label printer provided by the present invention;

[0029] Figure 4 The internal structure of a label printer provided by the present invention Figure 2 ;

[0030] Figure 5 for Figure 3 Enlarged view of point A in the middle; Figure 6 for Figure 4 Enlarged view of point B in the middle. In the accompanying drawings: 1. Outer box; 2. Placement port; 3. Output port; 4. Printing mechanism; 5. Curved support plate; 6. Gluing mechanism; 7. Drive contact mechanism; 8. Pillar; 9. Sleeve column; 10. Glue box; 11. Roller; 12. Stand; 13. Drive slide; 14. Push wheel; 15. Spring; 16. Drive gear; 17. Drive tooth plate; 18. Roller; 19. First transmission belt; 20. Linkage gear; 21. Second transmission belt; 22. Linkage tooth plate; 23. Pulley; 24. Guide wheel; 25. Dual drive motors; 26. Opposite drive wheels. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0033] Combine Figures 1 to 6 As shown, the label printer provided by the present invention adopts an integrated design, and its core structure is as follows:

[0034] Basic framework:

[0035] The outer box body 1 serves as the main supporting structure, with a placement port 2 (for the label roll to be inserted) and an output port 3 (for the finished label to be exported) on the front. The interior is arranged in sequence with a printing mechanism 4 (for printing images and texts on the upper surface), a curved support plate 5 (label roll supporting platform), a gluing mechanism 6 (lower surface gluing unit) and a driving contact mechanism 7 (gluing trigger).

[0036] Gluing mechanism 6 (dynamic gluing system)

[0037] like Figure 2-4 As shown, the mechanism adopts a suspended contact design:

[0038] The support 8 is fixed vertically to the inner wall of the box, and the sleeve 9 is slidably connected to the support 8 to achieve 15-20mm stroke adjustment:

[0039] The glue box 10 is fixedly connected to the lower end of the sleeve column 9 through an L-shaped bracket, and has a built-in glue-coating roller group 11 (preferably made of EPDM rubber, Shore hardness 60±5A);

[0040] The roller assembly 11 adopts a semi-immersed layout: the lower half (about 3 / 4 of the circumference) is immersed in the environmentally friendly hot melt adhesive liquid level of the glue tank 10, and the upper half protrudes from the internal channel of the tank;

[0041] Working principle: When the label paper passes, the roller 11 is driven by friction to rotate (the linear speed matches the label paper transmission speed). The thickness of the glue layer is controlled by the roller dipping depth (3-5mm) and the glue viscosity to ensure a uniform glue coating of 0.08-0.12mm.

[0042] Driving contact mechanism 7 (glue application trigger):

[0043] like Figure 2-6 As shown, the mechanism constructs a gravity sensing-mechanical linkage closed loop:

[0044] Trigger unit:

[0045] The stand 12 is fixed below the curved support plate 5 , and the driving slide 13 is connected to the stand 12 via a linear guide rail.

[0046] The push wheel 14 is rotatably mounted on the front end of the slide via a pin, and the return spring 15 provides initial tension.

[0047] Drive chain:

[0048] The driving gear plate 17 is fixedly connected to the slide 13 and meshes with the driving gear 16 for transmission.

[0049] The roller 18 is linked to the driving gear 16 via a first transmission belt 19 (synchronous belt).

[0050] The linkage gear 20 forms a two-stage reduction transmission with the roller 18 through the second transmission belt 21 (synchronous belt).

[0051] The linkage tooth plate 22 is fixedly connected to the side surface of the sleeve column 9 and forms a vertical transmission with the linkage gear 20.

[0052] Trigger logic:

[0053] No-load state (label roll not installed): spring 15 keeps slide 13 in upper position → tooth plate 17 disengages drive gear 16 → gluing mechanism 6 is in lower position (roller 11 is ≥10mm away from label paper channel);

[0054] Load state (label roll placement): The gravity of the label roll (0.2-0.5kg) presses down the push wheel 14 → the slide 13 moves down to compress the spring 15 → the tooth plate 17 drives the gear 16 to rotate → the roller 18 rotates synchronously → the linkage gear 20 reduces the transmission → the tooth plate 22 pushes the sleeve 9 to move up (stroke 8-12mm) → the roller 11 contacts the lower surface of the label paper.

[0055] Assistance Systems:

[0056] The curved support plate 5 is formed by stamping 1.5mm cold-rolled steel plate, and two sets of pulleys 23 (φ12mm nylon wheels) are set on the surface. The axial friction force of the label roll is ≤0.5N.

[0057] Guide wheel 24: Adjustable guide wheel (φ20mm rubber-coated wheel) to form a transmission path (curvature radius ≥50mm) to eliminate label paper wrinkles.

[0058] Dual drive motor 25: uses a 42 stepper motor (torque 2.5N·m), which provides transmission power (linear speed 50-150mm / s adjustable) through the opposite drive wheel 26 (φ30mm rubber wheel with anti-skid grooves on the surface).

[0059] Lower cutter device: Output port 3 is equipped with a liftable cutter, supporting manual / automatic cutting mode.

[0060] Workflow:

[0061] Paper preparation:

[0062] The label roll is not installed → the gluing mechanism 6 is in the low position → the end of the label paper (50-100mm) enters from the placement port 2, is turned by the guide wheel 24, is pre-positioned by the printing mechanism 4, and exits from the output port 3;

[0063] The dual drive motors 25 start at a low speed (50 mm / s), and the opposing drive wheels 26 pre-tension the label paper (tension 5-8 N).

[0064] Installation trigger:

[0065] The label roll is placed on the curved support plate 5 → the push wheel 14 is pressed → the drive contact mechanism 7 is triggered;

[0066] The gluing mechanism 6 moves up to the working position (the contact pressure between the roller 11 and the label paper is 2-3N) → the system enters the online state.

[0067] Synchronous processing:

[0068] Printing mechanism 4 (thermal transfer / inkjet module) performs upper surface printing simultaneously;

[0069] The dual drive motor 25 drives the label paper forward → the roller 11 of the gluing mechanism 6 rotates passively (the speed matches the linear speed) → the lower surface is evenly coated with glue;

[0070] The pulley 23 of the curved support plate 5 cooperates with the guide wheel group 24 to ensure the straightness of the label paper transmission (deviation ≤ 0.3mm / m).

[0071] Finished product processing:

[0072] The cutter device at the output port 3 automatically cuts according to the preset length (adjustable from 20 to 200 mm);

[0073] The glue coating surface (adhesive layer) and the printing surface (graphic layer) form a sandwich structure (label paper thickness 0.1-0.15mm, glue layer 0.08-0.12mm).

[0074] The gluing mechanism 6 is triggered only after the label roll is installed to avoid glue contamination during the paper feeding process (tested: when not installed, the gluing mechanism is ≥10mm away from the label paper, a safe distance design).

[0075] The entire process of printing, gluing and cutting is compactly designed to be ≤300mm, with equipment dimensions (length × width × height): 400 × 200 × 300mm.

[0076] In summary, when the label printer is used, the label roll needs to be opened first, the label paper at the end is inserted into the outer box 1 through the placement port 2, and the end is pulled out from the output port 3. At this time, since the label roll has not yet been inserted, the driving contact mechanism 7 will not drive the gluing mechanism 6 to operate, and the gluing mechanism 6 will not contact the label paper. Therefore, the label paper will not be stained with glue, and the situation that the label paper is not smeared with glue before it is installed is avoided, thereby reducing unnecessary glue residue.

[0077] After the position of the label paper is adjusted, the label roll can be placed on the curved support plate 5 in the outer box body 1. After it is placed on it, the downward pressing action of the label roll will cause the driving contact mechanism 7 to start running, and the driving contact mechanism 7 will drive the gluing mechanism 6 to run, so that the gluing mechanism 6 contacts the lower surface of the placed label paper, and completes the gluing during the movement of the label paper, and stops gluing when it does not move, avoiding excessive use of glue, and the printing mechanism 4 can print synchronously during the transmission of the label paper, thereby realizing the function of simultaneous label printing and glue application, and also avoiding excessive use of glue and the situation where the label paper is smeared with glue before it is installed.

[0078] For the gluing mechanism 6, the part of the glue coating roller located inside the glue box 10 will contact with the glue, ensuring that the rotated part can smoothly apply the glue to the label paper. After the roller 11 contacts the label paper, when the label paper is transmitted forward, the roller 11 will rotate synchronously driven by the label paper and continue to apply glue to the bottom of the label paper to achieve the gluing operation.

[0079] As for the driving contact mechanism 7, when the label roll has not yet been placed on the curved support plate 5, the label roll will not contact the pushing wheel 14. At this time, due to the presence of the spring 15, the driving slide 13 will not be pressed down. At this moment, the gluing mechanism 6 will be at the lowest point, that is, the sleeve 9 will drive the glue box 10 to the lowest point. At this moment, the gluing roller will not contact the label paper. At this time, the end of the label paper can be inserted into the outer box body 1 through the placement port 2 first, and the end can be pulled out from the output port 3 to complete the installation of the label paper.

[0080] After the label paper position is adjusted, the label roll can be placed on the curved support plate 5 in the outer box body 1. After it is placed, the downward pressure of the label roll will press the pushing wheel 14, causing the driving slide 13 to move downward and compress the spring 15. The downward movement of the driving slide 13 will drive the driving gear 16 to rotate through the driving tooth plate 17. During the rotation, the driving gear 16 will drive the roller 18 to rotate through the first transmission belt 19, and then control the synchronous rotation of the linkage gear 20 through the second transmission belt 21. During the rotation, the linkage gear 20 will push the linkage tooth plate 22 to move through the meshing relationship between it and the linkage tooth plate 22, and then push the sleeve 9 to move upward, so as to make the glue box 10 move upward synchronously, so that the glue coating roller contacts the lower surface of the label paper. At this time, when the label paper is transported forward, the glue can be continuously applied to the bottom of the label paper through the synchronous rotation of the roller 11 to achieve the gluing operation.

[0081] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A label printer, comprising an outer box (1), wherein the outer box (1) is provided with a placement port (2) and an output port (3), and a printing mechanism (4) is provided inside the outer box (1), characterized in that: The label printer further comprises: A curved support plate (5) is arranged inside the outer box (1); A gluing mechanism (6) is arranged inside the outer box (1), and is used for printing on the upper surface of the label paper while contacting the lower surface of the label paper and applying glue on the lower surface of the label paper; The driving contact mechanism (7) is arranged inside the outer box (1) and cooperates with the gluing mechanism (6). The driving contact mechanism (7) is used to control the gluing mechanism (6) to operate and contact the lower surface of the label roll after the label roll is placed inside the outer box (1).

2. The label printer according to claim 1, wherein: The gluing mechanism (6) comprises: A support column (8) is arranged inside the outer box (1), and a sleeve column (9) is slidably connected to the support column (8); A glue box (10) is mounted on the sleeve (9), and a group of rollers (11) are provided on the glue box (10); The roller (11) is located on one side of the glue box (10) and contacts the glue inside the glue box (10).

3. The label printer according to claim 2, wherein: The roller (11) is a rubber-coated roller.

4. The label printer according to claim 2, wherein: The driving contact mechanism (7) comprises: A stand (12) is arranged inside the outer box (1), a driving slide (13) is slidably connected to the stand (12), a driving slide (14) is rotatably connected to the driving slide (13), and a spring (15) is also sleeved on the stand (12); A driving gear (16) is rotatably connected to the interior of the outer box (1), and a driving tooth plate (17) is further provided on one side of the driving slide (13), and the driving gear (16) and the driving tooth plate (17) are meshed with each other; A roller (18) is rotatably connected to the interior of the outer box (1), and a first transmission belt (19) is sleeved between the roller (18) and the driving gear (16); A linkage gear (20) is rotatably connected to the interior of the outer box (1), and a second transmission belt (21) is sleeved between the linkage gear (20) and the roller (18); A linkage tooth plate (22) is installed on the side of the sleeve column (9), and the linkage gear (20) and the linkage tooth plate (22) are meshed with each other.

5. The label printer according to claim 1, wherein: A pulley (23) is provided on the curved support plate (5).

6. The label printer according to claim 1, wherein: A guide wheel (24) is rotatably mounted inside the outer box (1), and the guide wheel (24) is used to adjust the transmission direction of the label paper; A dual drive motor (25) is further provided inside the outer box (1), and a group of opposing drive wheels (26) are respectively provided on the dual drive motor (25), and the group of opposing drive wheels (26) is used to provide driving force for the transmission of label paper.

7. The label printer according to claim 1, wherein: A lower cutter is installed at the output port (3).

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