A code printing head paper pressing device

Abstract

This utility model discloses a paper-pressing device for an inkjet printer head, including a first block, a second block, a third block, and a fourth block disposed around the print head of an inkjet printer. The first block, the second block, the third block, and the fourth block are connected end-to-end to form a printing cavity. The first block, the second block, the third block, and the fourth block are connected to the inkjet printer frame, and the print head is embedded in the printing cavity. By arranging the first block, the second block, the third block, and the fourth block around the print head, when the edge of the substrate is raised, the substrate will directly impact the block, thus preventing the print head from being impacted. Furthermore, the block separates the raised substrate from the print head, preventing the inkjet printer from spraying ink onto the raised substrate, thereby avoiding defective prints and improving equipment production efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of printing technology, specifically relating to a paper pressing device for an inkjet printer head. Background Technology

[0002] Inkjet printers, an indispensable part of modern industrial production, are widely used in numerous industries such as food, pharmaceuticals, daily chemicals, building materials, cables, electronics, and automobiles, and their importance is increasingly prominent. The working principle of an inkjet printer is primarily based on inkjet technology. By controlling the opening and closing of the nozzles and the ejection of ink, the required information or markings are directly printed onto the surface of an object in the form of text, numbers, graphics, etc. The inkjet printer's printhead design is precise, and the ink system is stable and reliable, ensuring the clarity and durability of the printing effect. The most crucial factor determining the inkjet effect is the printhead, which is affected by print quality (the closer to the substrate, the better the print quality). Figure 3 As shown, the gap between the printhead and the paper feed belt below during normal operation is generally controlled at approximately the thickness of the substrate + 0.3mm. Packaging boxes are typically around 0.3mm thick, so the gap is generally controlled at around 0.55-0.6mm. Furthermore, considering the flatness of the substrate and the risk of scratching the printhead, although the paper feed belt uses an air-suction system, the arrangement of the air intake holes and the overall airflow of the suction motor cannot guarantee that the substrate will be completely flat. Therefore, when the edges of the substrate are raised, the substrate will directly impact the inkjet printhead. In this case, the printhead will spray ink onto the raised substrate, potentially damaging the printhead and producing a large number of defective prints, thus affecting equipment production efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a paper-pressing device for a coding printer head. By arranging a first block, a second block, a third block, and a fourth block around the printer head, when the edge of the substrate is raised, the substrate will directly impact the block, thus preventing the printer head from being hit. Furthermore, the block will separate the raised substrate from the printer head, preventing the printer from spraying ink onto the raised substrate, thereby avoiding defective prints and improving equipment production efficiency.

[0004] The technical solution adopted by this utility model to solve its technical problem is to propose a paper pressing device for inkjet printer heads, including a first block, a second block, a third block and a fourth block respectively disposed around the inkjet printer head; the first block, the second block, the third block and the fourth block are connected end to end to form a printing cavity, the first block, the second block, the third block and the fourth block are connected to the inkjet printer frame, and the inkjet printer head is embedded in the printing cavity.

[0005] In this embodiment, the first stop is arranged on the side of the paper pressing device near the starting point of the paper conveyor belt along the paper conveying direction. The first stop is provided with a paper guide block on the side of the paper conveyor belt away from the printer head along the paper conveying direction. The paper guide block is provided with a paper guide surface, which is used to smooth the substrate.

[0006] In this embodiment of the application, the length of the paper guide block decreases sequentially along the height direction of the paper guide block to form the paper guide surface.

[0007] In this embodiment, the length of the end of the paper guide block closest to the substrate along the height direction of the paper guide block is less than the length of the end of the paper guide block furthest from the substrate.

[0008] In this embodiment of the application, the angle between the paper guide surface and the paper conveyor belt surface is 60°.

[0009] In this embodiment of the application, the first stop block, the second stop block, the third stop block, and the fourth stop block are integrally connected.

[0010] In this embodiment of the application, the second block and the third block are respectively disposed on both sides of the first block, and the second block and the third block are provided with mounting parts.

[0011] In this embodiment of the application, the mounting component includes mounting holes provided on the second stop and the third stop, and the inkjet printer head paper pressing device further includes a fixing bolt, which passes through the mounting hole and is connected to the inkjet printer frame.

[0012] In this embodiment of the application, the second block and the third block are provided with disassembly and positioning components, which are used to position the inkjet printer head paper pressing device when installing or disassembling the inkjet printer head paper pressing device.

[0013] In this embodiment of the application, the disassembly and assembly positioning component is a tension spring pin.

[0014] The beneficial effects of this utility model are as follows: 1. The present invention proposes a paper pressing device for inkjet printer heads. By arranging a first block, a second block, a third block, and a fourth block around the inkjet printer print head, when the edge of the substrate is raised, the substrate will directly hit the block, thereby preventing the inkjet printer print head from being impacted. In addition, the block will separate the raised substrate from the inkjet printer print head, so the inkjet printer will not spray ink onto the raised substrate, thus preventing defective prints and improving equipment production efficiency. 2. The present invention proposes a paper pressing device for a coding printer head, which smooths out the raised substrate by arranging a paper guide block with a paper guide surface thereon, so that when the coding printer head prints on the subsequent substrate, the subsequent substrate is always in a flat state, thereby improving the coding effect of the coding printer head. 3. The paper pressing device for the inkjet printer head proposed in this utility model has a paper guiding surface formed by the guide block having a smooth inclined surface with the length of the guide block decreasing in the height direction. In this way, after the raised substrate comes into contact with the guide surface, the substrate is smoothed out under the combined action of the paper guiding surface and the paper conveyor belt, thereby improving the inkjet printing effect of the subsequent substrate. 4. The paper pressing device for the inkjet printer head proposed in this utility model has a length of the end of the paper guide block near the substrate that is shorter than the length of the end of the paper guide block away from the substrate along the height direction. In this way, during the process of smoothing out the raised substrate, the force exerted by the paper guide block on the substrate is dispersed on the surface of the substrate, avoiding the concentration of force on the raised substrate and thus avoiding damage to the substrate. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, similar reference numerals are used to denote similar elements. The drawings described below are some embodiments of the present invention, but not all embodiments. Other drawings will be readily available to those skilled in the art based on these drawings without any inventive effort.

[0016] Figure 1 This is a schematic diagram of a paper pressing device for an inkjet printer head according to an embodiment of the present utility model; Figure 2 This is a test diagram of a paper-pressing device for an inkjet printer head according to an embodiment of the present invention; Figure 3 This is a side view of the printhead of a conventional inkjet printer, as described in this embodiment of the invention. Figure 4 This is a side view of the use of a paper pressing device for an inkjet printer head according to an embodiment of the present invention.

[0017] In the diagram: 1. First stop block; 2. Second stop block; 3. Third stop block; 4. Fourth stop block; 5. Paper guide block; 6. Paper guide surface; 7. Mounting component; 8. Disassembly and positioning component; 9. Print head of inkjet printer; 10. Paper feed belt; 11. Printing substrate. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model and the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort. Furthermore, the design orientation only indicates the relative positional relationship between the components, not the absolute positional relationship.

[0019] This utility model embodiment provides a paper pressing device for an inkjet printer head. Please refer to [link / reference]. Figure 1 , Figure 2 , Figure 3 , Figure 4 It mainly includes the first stop 1, the second stop 2, the third stop 3 and the fourth stop 4.

[0020] In this embodiment, the inkjet printer head paper-pressing device includes a first stop 1, a second stop 2, a third stop 3, and a fourth stop 4. The first stop 1, second stop 2, third stop 3, and fourth stop 4 are respectively arranged around the inkjet printer head, and are connected end-to-end to form a printing cavity. The first stop 1, second stop 2, third stop 3, and fourth stop 4 are connected to the inkjet printer frame, thereby fixing the inkjet printer head paper-pressing device. Embedded within the printing cavity formed by the first stop block 1, the second stop block 2, the third stop block 3, and the fourth stop block 4, in this application, by arranging the first stop block 1, the second stop block 2, the third stop block 3, and the fourth stop block 4 around the print head of the inkjet printer, when the edge of the substrate is raised, the substrate will directly impact the stop block, thereby preventing the print head of the inkjet printer from being impacted. Furthermore, the stop block will separate the raised substrate from the print head of the inkjet printer, preventing the inkjet printer from spraying ink onto the raised substrate, thus preventing defective prints and improving equipment production efficiency.

[0021] In one possible implementation, the first stop block 1 is arranged along the paper feeding direction of the paper feeding belt on the side of the paper pressing device near the starting point of the paper feeding belt. The first stop block 1 is provided with a paper guide block 5 along the paper feeding direction of the paper feeding belt on the side of the inkjet printer printhead. The paper guide block 5 is integrally connected with the first stop block 1. The paper guide block 5 is provided with a paper guide surface 6 for smoothing the substrate. By arranging the paper guide block 5 with the paper guide surface 6 thereon, the raised substrate is smoothed, so that when the inkjet printer printhead prints on the subsequent substrate, the subsequent substrate is always in a flat state, thereby improving the printing effect of the inkjet printer printhead.

[0022] Furthermore, in the height direction of the paper guide block 5, the length of the paper guide block 5 decreases sequentially to form the paper guide surface 6, with the height direction being... Figure 2 The vertical direction and the length direction are Figure 2 In the left and right directions, the paper guide surface 6 is a smooth inclined surface formed by the gradual decrease in length of the block in the height direction. After the raised substrate comes into contact with the guide surface, the substrate is smoothed out by the combined action of the paper guide surface 6 and the paper conveyor belt, thereby improving the coding effect of the subsequent substrate.

[0023] Preferably, in the height direction of the paper guide block 5, the length of the end of the paper guide block 5 closest to the substrate is less than the length of the end of the paper guide block 5 furthest from the substrate, thereby forming a shape as shown in the image. Figure 2 The structure shown in the diagram disperses the force exerted by the guide block 5 on the substrate during the process of smoothing out the raised substrate, preventing the force from concentrating on the raised substrate and thus avoiding damage to the substrate.

[0024] Preferably, the angle between the paper guide surface 6 and the surface of the paper conveyor belt is 60°.

[0025] In one possible implementation, the first stop 1, the second stop 2, the third stop 3, and the fourth stop 4 are integrally connected, so that multiple stops form a whole, the stress distribution is uniform, the resistance to deformation / vibration is strong, and there is no need to assemble each stop separately during assembly, thus reducing assembly errors.

[0026] In one possible implementation, the second stop 2 and the third stop 3 are respectively disposed on both sides of the first stop 1. The second stop 2 and the third stop 3 are provided with mounting parts 7. The mounting parts 7 are used to fix the inkjet printer head paper pressing device on the inkjet printer frame. By fixing the mounting parts 7 on the second stop and the third stop, after the inkjet printer head paper pressing device is installed, the entire inkjet printer head paper pressing device is subjected to uniform force, which improves the stability of the inkjet printer head paper pressing device after installation.

[0027] Furthermore, the mounting component 7 includes multiple mounting holes arranged on the second stop 2 and the third stop 3, and the inkjet printhead paper pressing device also includes fixing bolts. The fixing bolts pass through the mounting holes and enter the grooves on the inkjet printer frame, thereby fixing the inkjet printhead paper pressing device on the inkjet printer frame.

[0028] In one possible implementation, the second stop 2 and the third stop 3 are provided with disassembly and assembly positioning parts 8. By setting tension spring pins, the paper pressing device of the inkjet printer head is positioned during installation and disassembly, so that the paper pressing device of the inkjet printer head is fixed in the installation and disassembly position.

[0029] Specifically, the disassembly and assembly positioning component 8 is a tension spring pin, which includes a pin shaft, a handle, a compression spring, and a fixing base. The pin shaft is a cylindrical rod-shaped object used to insert into the disassembly and assembly holes of the second stop 2 and the third stop 3. The handle is fixed to one end of the pin shaft, and the radius of the handle is larger than the radius of the pin shaft, allowing the operator to pull it. The compression spring is sleeved on the pin shaft and located between the handle and the second stop 2 (or the third stop 3). A ball bearing is installed at the end of the pin shaft to lock it into the inkjet printer frame when the pin shaft is inserted, providing a more secure lock and preventing accidental dislodgement.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0031] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the protection scope of the present invention.

Claims

1. A paper pressing device for an inkjet printer head, characterized in that, It includes a first block (1), a second block (2), a third block (3), and a fourth block (4) disposed around the print head of the inkjet printer; the first block (1), the second block (2), the third block (3), and the fourth block (4) are connected end to end to form a printing cavity, the first block (1), the second block (2), the third block (3), and the fourth block (4) are connected to the inkjet printer frame, and the print head of the inkjet printer is embedded in the printing cavity.

2. The inkjet printer head paper pressing device according to claim 1, characterized in that, The first stop block (1) is arranged along the paper feeding direction of the paper feeding belt on one side of the paper pressing device near the starting point of the paper feeding belt. The first stop block (1) is provided with a paper guide block (5) on the side away from the inkjet printer head along the paper feeding direction of the paper feeding belt. The paper guide block (5) is provided with a paper guide surface (6), which is used to smooth the substrate.

3. A printhead pressure device according to claim 2, wherein, The length of the paper guide block (5) decreases sequentially along the height direction to form the paper guide surface (6).

4. A printhead pressure device according to claim 3, wherein, Along the height direction of the guide block (5), the length of the end of the guide block (5) closer to the substrate is less than the length of the end of the guide block (5) farther away from the substrate.

5. A printhead pressure device according to claim 4, wherein, The angle between the paper guide surface (6) and the paper conveyor belt surface is 60°.

6. A printhead pressure device according to claim 1, wherein, The first stop (1), the second stop (2), the third stop (3) and the fourth stop (4) are connected as a single unit.

7. A printhead pressure device according to claim 6, wherein, The second stop (2) and the third stop (3) are respectively located on both sides of the first stop (1), and the second stop (2) and the third stop (3) are provided with mounting parts (7).

8. A printhead pressure device according to claim 7, wherein, The mounting component (7) includes mounting holes provided on the second stop (2) and the third stop (3). The inkjet printer head paper pressing device also includes a fixing bolt, which passes through the mounting hole and is connected to the inkjet printer frame.

9. The printhead pressure device of claim 1, wherein, The second stop (2) and the third stop (3) are provided with disassembly and mounting positioning parts (8), which are used to position the inkjet printer head paper pressing device when installing or disassembling the inkjet printer head paper pressing device.

10. A printhead pressure device according to claim 9, wherein, The disassembly and assembly positioning component (8) is a tension spring pin.

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