Printer fixing frame with multi-layer composite structure

Abstract

The utility model discloses a printer fixing frame with a multilayer composite structure, and relates to the technical field of printers. The machine comprises an upper cover assembly, a lower cover assembly is arranged at the bottom of the upper cover assembly, a machine body is arranged between the upper cover assembly and the lower cover assembly, and a positioning mechanism is arranged at the front end of the machine body. According to the utility model, the rubber roller sleeve is precisely positioned through the heat dissipation plate and the U-shaped groove, so that a printing line on the surface of the rubber roller can be precisely aligned with a printing sheet, good contact between the rubber roller and the printing sheet in the printing process is ensured, the printing definition is effectively improved, the technical barrier that the printing definition of a large-size thermosensitive sheet is difficult to control is broken through, and the printing efficiency is improved. By means of the structural design, the product performance is guaranteed, meanwhile, the production cost is reduced, the workload and cost of after-sales maintenance are reduced, the purposes of cost reduction and efficiency improvement of enterprises are facilitated, and the competitiveness of products in the market is enhanced.

Description

Technical Field

[0001] This utility model belongs to the field of printer technology, and in particular relates to a multi-layer composite printer holder. Background Technology

[0002] In today's information age, printers, as an important output device, are widely used in various fields such as offices, businesses, and homes. There are various types of printers, the most common being thermal printers and thermal transfer printers. Thermal printers achieve printing by heating thermal paper. They have advantages such as fast printing speed, low noise, and simple structure, and are often used in scenarios such as supermarket checkouts and printing express delivery slips. In the field of thermal and thermal transfer printing, the structural design of the printer holder has a crucial impact on print quality and the overall performance of the equipment.

[0003] Currently, printer positioning structures on the market mainly suffer from the following problems: First, some products use die-cast zinc alloy as the heat sink for the thermal pad, and set U-shaped grooves on the zinc alloy to position the rubber roller sleeve, thereby achieving positioning of the thermal pad assembly and the center line of the rubber roller. However, for large-size thermal pads (such as 8 inches), die-cast zinc alloy presents challenges in the manufacturing process and is prone to deformation, which directly affects print clarity, resulting in poor print quality and failing to meet users' demands for high-quality printing. Second, die-cast zinc alloy heat sinks are expensive, and the defect rate during production remains high. This not only increases the company's production costs but also reduces the product's competitiveness in the market. Third, from an after-sales perspective, the high defect rate increases subsequent maintenance costs, and production efficiency is difficult to improve, hindering companies from achieving their goals of cost reduction and efficiency improvement.

[0004] To address these issues, we provide a multi-layered composite printer holder. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer composite printer holder that, through the cooperation of the upper cover assembly, the lower cover assembly and the positioning mechanism, solves the problem in the prior art where the printing clarity of large-size thermal films is affected by the deformation of heat dissipation components, thereby reducing production costs and defect rates.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0007] This utility model relates to a multi-layer composite printer holder, comprising an upper cover assembly, a lower cover assembly at the bottom of the upper cover assembly, and a body between the upper and lower cover assemblies. A positioning mechanism is located at the front end of the body, the positioning mechanism including a printing plate. A 3M adhesive is fixedly connected to the top of the printing plate, and a heat sink is fixedly connected to the top of the 3M adhesive. A first spring is fixedly connected to the top of the heat sink, and second springs are fixedly connected to both sides of the top of the heat sink. Spring fixing plates are fixedly connected to the tops of the first and second springs. A rivet is provided inside the cavity of the first spring, the bottom of the rivet is fixedly connected to the heat sink, and the top of the rivet extends through to the top of the spring fixing plate. A washer is fitted on the top of the rivet surface, and a retaining spring is fitted on the top of the washer. U-shaped grooves are fixedly connected to both sides of the heat sink, and the top of the spring fixing plate is fixed... The printer is equipped with a paper tearer, and the upper and lower cover assemblies form the basic frame. These components work together to provide a stable protective and support environment for the internal structure. The upper and lower cover assemblies are tightly integrated, forming a relatively enclosed space that effectively prevents dust and debris from entering the printer, providing excellent protection. The printing sheet, which directly performs the printing work, is firmly connected to the heat sink using 3M adhesive. 3M adhesive has excellent adhesion and stability, ensuring a tight fit between the printing sheet and the heat sink, guaranteeing effective heat conduction. The heat sink effectively dissipates the heat generated by the printing sheet during operation, preventing heat buildup that could lead to performance degradation or damage. At the top of the heat sink, a first spring is located in the center, and second springs are symmetrically distributed on both sides. These springs not only provide elastic support for the positioning mechanism but also act as a buffer and shock absorber during printer operation.

[0008] The present invention is further configured such that brackets are movably connected to both sides of the front end of the bottom of the body, and a connecting shaft is movably connected to one side of the two brackets via a rotating shaft. The connecting shaft movably connects the two brackets via the rotating shaft, which not only plays a connecting and supporting role in the structure, but also provides a key transmission basis for the subsequent opening action. When the opening button is pressed, the connecting shaft can rotate accordingly, thereby driving the hook to realize the opening action, ensuring that the opening process is smooth and flexible, and convenient for user operation.

[0009] This invention is further configured such that a motor is fixedly connected to one side of the bottom of the machine body, a gear set is fixedly connected to the output end of the motor, a core frame is provided on one side of the gear set, a rubber roller is fixedly connected to the output end of the gear set, and a rubber roller sleeve is fitted on the surface of the rubber roller. The motor provides power to the printer, and the gear set connected to the output end of the motor can adjust the speed and torque of the motor, so that the rubber roller operates at a suitable speed and force. The core frame provides a stable mounting base for the gear set, rubber roller, and other components, ensuring that the relative positions of each component are accurate during operation, reducing wear between components, and extending service life. The rubber roller sleeve fitted on the surface of the rubber roller can protect the rubber roller and reduce damage caused by direct friction. On the other hand, the material and surface characteristics of the rubber roller sleeve, which is in contact with the printing paper, help to achieve uniform pressure transmission, so that the printing paper can be fed smoothly during the printing process, ensuring printing quality and ensuring clear and complete printing lines.

[0010] The present invention is further configured such that pins are provided on both sides of the rear end of the bottom of the machine body, and the pins are symmetrically arranged. The pins play an important role in the assembly process of the printer mounting bracket, and can accurately position the relative position of the machine body and other components, ensuring the accuracy and consistency of the installation of each component, and improving the assembly efficiency. The spring pressure plate and the hook structure realize a reliable connection between the upper cover assembly and the lower cover assembly.

[0011] The present invention is further configured such that spring pressure plates are provided on both sides of the inner cavity of the lower cover assembly, and a hook is provided on one side of the spring pressure plate. The top of the hook engages with the upper cover assembly. The engagement of the hook with the upper cover assembly securely locks the upper cover assembly under normal working conditions, preventing the upper cover from being opened accidentally and protecting the internal components of the printer. The spring pressure plate provides a certain elastic pressure to the hook, ensuring that the hook always maintains a tight fit with the upper cover assembly and improving the stability of the connection.

[0012] The present invention is further configured such that both sides of the surface of the lower cover assembly are movably connected with an opening button, one side of the opening button extends into the inner cavity of the lower cover assembly, and the other side of the opening button contacts the connecting shaft. When the user presses the opening button, the force is transmitted to the connecting shaft through the button, the connecting shaft rotates and drives the hook to move, and finally realizes the pop-opening of the upper cover assembly.

[0013] This invention is further configured such that both sides of the rubber roller extend into the inner cavity of the U-shaped groove, and the surface of the rubber roller is provided with printing lines. The U-shaped groove plays a precise positioning and guiding role for the rubber roller. When the printer is working, the U-shaped groove ensures that the rubber roller is always in the correct position, so that the printing lines on the surface of the rubber roller can be precisely aligned with the printing sheet, ensuring the accuracy of the printing position.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a heat sink and a U-shaped groove to precisely position the rubber roller sleeve, ensuring that the printing lines on the surface of the rubber roller are accurately aligned with the printing sheet. This ensures good contact between the rubber roller and the printing sheet during the printing process, effectively improving the clarity of the print. It overcomes the technical obstacle of controlling the clarity of large-size thermal film printing and guarantees the stable implementation of the printing function. This structural design reduces production costs and the workload and cost of after-sales maintenance while ensuring product performance. It helps enterprises achieve the goal of cost reduction and efficiency improvement and enhances the competitiveness of products in the market.

[0016] 2. This utility model utilizes sheet metal parts instead of die-cast zinc alloy, fully leveraging the ease of production of sheet metal parts, reducing production difficulty, decreasing the precision requirements for plastic production and processing, and thus improving production efficiency. At the same time, this structural improvement effectively reduces the defect rate and increases the yield rate, bringing higher economic benefits to enterprises. By connecting the spring fixing plate with rivets, the printing component not only has elasticity but also angle adjustability. During equipment operation, this design can effectively buffer vibration, reduce the impact of vibration on printing accuracy, and increase the stability of the product during use. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a perspective view of a multi-layered composite printer holder.

[0019] Figure 2 This is a perspective view of the connection structure between the lower cover assembly and the printer body in a multi-layer composite printer holder.

[0020] Figure 3 This is a bottom-view perspective view of the main body of a multi-layered composite printer holder.

[0021] Figure 4 This is a perspective view of the positioning mechanism in a multi-layered composite printer holder.

[0022] Figure 5 This is a bottom-view perspective view of the positioning mechanism in a multi-layered composite printer holder.

[0023] Figure 6 This is an exploded view of the positioning mechanism in a multi-layered composite printer holder.

[0024] Figure 7 In a multi-layer composite printer holder Figure 6 Enlarged view of point A.

[0025] Figure 8 This is a cross-sectional view of the connection structure between the rubber roller and the rubber roller sleeve in a multi-layer composite printer holder.

[0026] Figure 9 This is a cross-sectional view of the cover opening button in a multi-layered composite printer holder.

[0027] Figure 10 This is a perspective view of the connection structure between the spring pressure plate and the hook in a multi-layer composite printer holder.

[0028] In the attached diagram: 1. Upper cover assembly; 2. Lower cover assembly; 3. Machine body; 4. Positioning mechanism; 401. Printing sheet; 402. 3M adhesive; 403. Heat sink; 404. First spring; 405. Second spring; 406. Spring fixing plate; 407. Rivet; 408. Washer; 409. Snap ring; 410. U-shaped groove; 411. Paper tearer; 5. Bracket; 6. Connecting shaft; 7. Motor; 8. Gear set; 9. Machine core frame; 10. Glue roller; 11. Glue roller sleeve; 12. Pin; 13. Spring pressure plate; 14. Hook; 15. Opening button. Detailed Implementation

[0029] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] Example 1

[0031] Please see Figure 1-10 This utility model is a multi-layer composite printer holder, including an upper cover assembly 1, a lower cover assembly 2 at the bottom of the upper cover assembly 1, an assembly 3 between the upper cover assembly 1 and the lower cover assembly 2, and a positioning mechanism 4 at the front end of the assembly 3. The positioning mechanism 4 includes a printing plate 401, a 3M adhesive 402 fixedly connected to the top of the printing plate 401, a heat sink 403 fixedly connected to the top of the 3M adhesive 402, a first spring 404 fixedly connected to the top of the heat sink 403, and second springs 404 fixedly connected to both sides of the top of the heat sink 403. 5. A spring fixing plate 406 is fixedly connected to the top of the first spring 404 and the top of the second spring 405. A rivet 407 is provided in the inner cavity of the first spring 404. The bottom of the rivet 407 is fixedly connected to the heat sink 403. The top of the rivet 407 extends through to the top of the spring fixing plate 406. A washer 408 is sleeved on the top of the surface of the rivet 407. A retaining spring 409 is sleeved on the top of the washer 408. U-shaped grooves 410 are fixedly connected to both sides of the heat sink 403. A paper tearer 411 is fixedly connected to the top of the spring fixing plate 406.

[0032] Specifically: The upper cover assembly 1 and the lower cover assembly 2 form the basic frame. They work together to provide a stable protection and support environment for the internal body 3. The upper cover assembly 1 and the lower cover assembly 2 are tightly integrated to form a relatively enclosed space, which can effectively prevent dust, debris and other objects from entering the body 3 and play a good protective role for the body 3. The printing sheet 401, as the component that directly performs the printing work, is firmly connected to the heat sink 403 with 3M adhesive. 3M adhesive has excellent adhesion and stability, which can ensure that the printing sheet 401 is tightly attached to the heat sink 403 and ensure effective heat conduction. The heat sink 403 can dissipate the heat generated by the printing sheet 401 during operation in a timely manner, avoiding the performance degradation or damage of the printing sheet 401 due to heat accumulation. At the top of the heat sink 403, the first spring 404 is located at the center of the top of the heat sink 403, and the second spring 405 is symmetrically distributed on both sides of the top of the heat sink 403. These springs not only provide elastic support for the positioning mechanism 4, but also play a role in buffering and shock absorption when the printer is working.

[0033] Example 2

[0034] Please see Figure 1-10 Based on Embodiment 1, brackets 5 are movably connected to both sides of the bottom front end of the machine body 3. A connecting shaft 6 is movably connected to one side of the two opposing brackets 5 via a rotating shaft. A motor 7 is fixedly connected to one side of the bottom of the machine body 3. A gear set 8 is fixedly connected to the output end of the motor 7. A core frame 9 is provided on one side of the gear set 8. A rubber roller 10 is fixedly connected to the output end of the gear set 8. A rubber roller sleeve 11 is fitted on the surface of the rubber roller 10. Pins 12 are provided on both sides of the bottom rear end of the machine body 3. The pins 12 are symmetrically arranged. Spring pressure plates 13 are provided on both sides of the inner cavity of the lower cover assembly 2. A hook 14 is provided on one side of the spring pressure plate 13. The top of the hook 14 is engaged with the upper cover assembly 1. Opening buttons 15 are movably connected to both sides of the surface of the lower cover assembly 2. One side of the opening button 15 extends into the inner cavity of the lower cover assembly 2. One side of the opening button 15 contacts the connecting shaft 6. Both sides of the rubber roller 10 extend into the inner cavity of the U-shaped groove 410. Printing lines are provided on the surface of the rubber roller 10.

[0035] Specifically: The connecting shaft 6, which connects the two brackets 5 via a rotating shaft, not only serves as a connection and support structure but also provides a crucial transmission foundation for the subsequent cover opening action. When the cover opening button 15 is pressed, the connecting shaft 6 rotates accordingly, thereby driving the hook to open the cover, ensuring a smooth and flexible opening process for user convenience. The motor 7 provides power to the printer, and the gear set 8 connected to the output end of the motor 7 can adjust the speed and torque of the motor 7, allowing the rubber roller 10 to operate at an appropriate speed and force. The machine frame 9 provides a stable mounting foundation for components such as the gear set 8 and the rubber roller 10, ensuring accurate relative positions of each component during operation, reducing wear between components, and extending service life. The rubber roller sleeve 11, which covers the surface of the rubber roller 10, protects the rubber roller 10 from damage caused by direct friction. Furthermore, the material and surface characteristics of the rubber roller sleeve 11, which comes into contact with the printing paper, help to achieve uniform pressure transmission, ensuring smooth paper feeding during printing, guaranteeing print quality, and ensuring print quality. The printing lines are clear and complete. The pin 12 plays an important role in the assembly of the printer mounting bracket, accurately positioning the relative position of the machine body 3 and other components, ensuring the accuracy and consistency of the installation of each component, and improving assembly efficiency. The spring pressure plate 13 and the hook 14 structure realize a reliable connection between the upper cover assembly 1 and the lower cover assembly 2. The hook 14 engages with the upper cover assembly 1, firmly locking the upper cover assembly 1 under normal working conditions, preventing the upper cover from opening accidentally and protecting the internal components of the printer. The spring pressure plate 13 provides a certain elastic pressure to the hook 14, ensuring that the hook 14 always maintains a tight fit with the upper cover assembly 1, improving the stability of the connection. The cover opening button 15 provides users with a convenient way to open the cover. One side of the button extends into the inner cavity of the lower cover assembly 2 and contacts the connecting shaft 6. When the user presses the cover opening button 15, the force is transmitted to the connecting shaft 6 through the button. The connecting shaft 6 rotates, driving the hook 14 to move, ultimately realizing the opening of the upper cover assembly 1. The U-shaped groove 410 plays a precise positioning and guiding role for the rubber roller 10. When the printer is working, the U-shaped groove 410 ensures that the rubber roller 10 is always in the correct position, so that the printing lines on the surface of the rubber roller 10 can be precisely aligned with the printing sheet 401, ensuring the accuracy of the printing position.

[0036] The working principle of this utility model is as follows: the printing sheet 401 is connected to the heat sink 403 by 3M adhesive. The excellent adhesion and stability of 3M adhesive ensure that the printing sheet 401 and the heat sink 403 are tightly attached, so that the heat generated by the printing sheet 401 during operation can be effectively conducted to the heat sink 403. The heat sink 403 dissipates the heat in time, avoiding the impact of heat accumulation on the performance of the printing sheet 401. The first spring 404 is located in the center, and the second spring 405 is symmetrically distributed on both sides, providing elastic support for the positioning mechanism 4. At the same time, it buffers vibration when the printer is working, reducing the impact on print quality. The rivet 407 passes through the first spring 404 and connects the heat sink 403 and the spring fixing plate 406. The gasket 408 and the snap ring 409 ensure the stability of the connection.

[0037] The gear set 8 connected to the motor 7 can adjust the speed and torque of the motor 7. The adjusted power is transmitted to the rubber roller 10, so that the rubber roller 10 operates at a suitable speed and force. The core frame 9 provides a stable mounting base for the gear set 8, rubber roller 10 and other components, ensuring that the relative positions of each component are accurate during operation, reducing wear and extending service life. The surface of the rubber roller 10 is covered with a rubber roller sleeve 11, which protects the rubber roller 10 and reduces friction damage. On the other hand, during the printing process, it comes into contact with the printing paper and achieves uniform pressure transmission by virtue of its own material and surface characteristics, so that the printing paper is fed smoothly. The sides of the rubber roller 10 extend into the inner cavity of the U-shaped groove 410. The U-shaped groove 410 plays a precise positioning and guiding role for the rubber roller 10, ensuring that the printing lines on the surface of the rubber roller 10 are accurately aligned with the printing sheet 401, ensuring accurate printing position, and thus improving printing quality.

[0038] When the user presses the cover opening button 15, the force is transmitted to the connecting shaft 6 through the button. The connecting shaft 6 rotates and drives the hook 14 to move. The hook 14 engages with the upper cover assembly 1, which securely locks the upper cover assembly 1 under normal working conditions to prevent accidental opening. The spring pressure plate 13 provides elastic pressure to the hook 14 to ensure that the hook 14 and the upper cover assembly 1 fit tightly together and improve the connection stability.

[0039] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A multi-layer composite printer holder, comprising an upper cover assembly (1), characterized in that: The bottom of the upper cover assembly (1) is provided with a lower cover assembly (2), and an organism (3) is provided between the upper cover assembly (1) and the lower cover assembly (2). The front end of the organism (3) is provided with a positioning mechanism (4). The positioning mechanism (4) includes a printing plate (401), a 3M adhesive (402) fixedly connected to the top of the printing plate (401), a heat sink (403) fixedly connected to the top of the 3M adhesive (402), a first spring (404) fixedly connected to the top of the heat sink (403), and second springs (405) fixedly connected to both sides of the top of the heat sink (403). A spring fixing plate (406) is fixedly connected to the top of both the first spring (404) and the top of both the second spring (405). The inner cavity of (404) is provided with a rivet (407). The bottom of the rivet (407) is fixedly connected to the heat sink (403). The top of the rivet (407) extends through to the top of the spring fixing plate (406). A washer (408) is sleeved on the top of the surface of the rivet (407). A retaining spring (409) is sleeved on the top of the washer (408). U-shaped grooves (410) are fixedly connected to both sides of the heat sink (403). A paper tearer (411) is fixedly connected to the top of the spring fixing plate (406).

2. The printer mounting bracket with a multi-layer composite structure according to claim 1, characterized in that: The bottom front end of the body (3) is movably connected to both sides of the bracket (5), and the opposite side of the two brackets (5) is movably connected to the connecting shaft (6) through the rotating shaft.

3. The printer mounting bracket with a multi-layer composite structure according to claim 1, characterized in that: A motor (7) is fixedly connected to one side of the bottom of the machine body (3). A gear set (8) is fixedly connected to the output end of the motor (7). A core frame (9) is provided on one side of the gear set (8). A rubber roller (10) is fixedly connected to the output end of the gear set (8). A rubber roller sleeve (11) is fitted on the surface of the rubber roller (10).

4. The printer mounting bracket with a multi-layer composite structure according to claim 1, characterized in that: Pins (12) are provided on both sides of the bottom rear end of the body (3), and the pins (12) are arranged symmetrically.

5. The printer mounting bracket with a multi-layer composite structure according to claim 1, characterized in that: Spring pressure plates (13) are provided on both sides of the inner cavity of the lower cover assembly (2). A hook (14) is provided on one side of the spring pressure plate (13). The top of the hook (14) is engaged with the upper cover assembly (1).

6. The printer mounting bracket with a multi-layer composite structure according to claim 2, characterized in that: Both sides of the surface of the lower cover assembly (2) are movably connected with opening buttons (15). One side of the opening button (15) extends into the inner cavity of the lower cover assembly (2), and one side of the opening button (15) contacts the connecting shaft (6).

7. The printer mounting bracket with a multi-layer composite structure according to claim 3, characterized in that: Both sides of the rubber roller (10) extend into the inner cavity of the U-shaped groove (410), and the surface of the rubber roller (10) is provided with printing lines.

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