A shaft mounting structure for a printer

Abstract

The utility model discloses a kind of shaft mounting structures for printer, including paper roll shaft, the both ends of paper roll shaft are symmetrically provided with rotating block, paper roll shaft is used to install paper roll, two round plates are symmetrically connected on paper roll shaft, each round plate is fixedly connected with round block, each round block is connected with rectangular block, each rotating block is provided with rectangular groove and mounting groove, the end of two rectangular blocks opposite each other is set in rectangular groove, mounting box is fixedly installed in each mounting groove. The utility model, by rotating rotating knob, rotating knob moves rectangular threaded cylinder by thread rod, rectangular threaded cylinder is removed from insertion slot in rectangular block, rectangular block can be moved by lug plate, and then rectangular block is removed from rectangular groove in rotating block, and then paper roll shaft can be removed from rotating block, it is convenient to disassemble and install rotating block, and then it is convenient to replace paper roll.

Description

Technical Field

[0001] This utility model relates to the field of printer technology, and in particular to a shaft mounting structure for a printer. Background Technology

[0002] A printer is a computer output device used to print computer-processed results onto relevant media. There are many types of printers. Based on whether the printing element strikes the paper, they are divided into impact printers and non-impact printers. Based on the structure of the printed characters, they are divided into full-character printers and dot-matrix character printers. Based on how a line of text is formed on the paper, they are divided into serial printers and line printers. Based on the technology used, they are divided into column printers, ball printers, inkjet printers, thermal printers, laser printers, electrostatic printers, magnetic printers, and LED printers, among others.

[0003] In existing printers, after the paper on the paper roll is used up, the original paper roll needs to be removed and a new paper roll needs to be replaced. However, in traditional designs, the paper roll is usually fixed inside the printer with screws, making the disassembly and assembly process cumbersome and inefficient, thus affecting the speed and convenience of paper roll replacement.

[0004] To address the above issues, we propose a shaft mounting structure for printers. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the need to disassemble and replace the paper roll after the paper on the paper roll has been used up. Traditionally, the paper roll is usually fixed inside the printer with screws, resulting in a cumbersome disassembly and assembly process, low operational efficiency, and affecting the speed and convenience of paper roll replacement. Therefore, this invention proposes a shaft mounting structure for printers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shaft mounting structure for a printer includes a paper roll shaft with symmetrically arranged rotating blocks at both ends. The paper roll shaft is used to mount a paper drum. Two circular plates are symmetrically connected to the paper roll shaft. Each circular plate is fixedly connected to a circular block, and each circular block is connected to a rectangular block. Each rotating block has a rectangular groove and an installation groove. The opposite ends of the two rectangular blocks are each located in the rectangular groove. An installation box is fixedly installed in each installation groove. A rectangular threaded cylinder is provided in each installation box. Each rectangular block has an insertion groove, and each rectangular threaded cylinder is located in the insertion groove.

[0008] As a preferred embodiment of the shaft mounting structure for a printer described in this utility model, each mounting box has a rotating knob rotatably connected to its side wall, each mounting box has a threaded rod, each threaded rod passes through the side wall of the mounting box and is fixedly connected to the rotating knob, each threaded rod is threadedly connected to a corresponding rectangular threaded cylinder, each rectangular threaded cylinder is symmetrically fixedly connected to a sliding rod, and the opposite ends of two corresponding sliding rods are slidably connected to the inner wall of the mounting box.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] By rotating the knob, the rectangular threaded cylinder moves through the threaded rod, and the rectangular threaded cylinder moves out of the insertion slot in the rectangular block. The rectangular block can be moved by the ear plate, and then moved out of the rectangular slot in the rotating block. The paper roll can then be removed from the rotating block, making it easy to disassemble and install the rotating block, and thus easy to replace the paper roll. Attached Figure Description

[0011] Figure 1 This is a perspective view of a shaft mounting structure for a printer proposed in this utility model;

[0012] Figure 2 This is a schematic diagram of the paper roll shaft in a shaft mounting structure for a printer proposed in this utility model;

[0013] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0014] Figure 4 This is a schematic diagram of the rectangular threaded cylinder, mounting box, and threaded rod in a shaft mounting structure for a printer proposed in this utility model.

[0015] Figure 5 This is a schematic diagram of the circular block, rectangular block, and mounting stud in a shaft mounting structure for a printer proposed in this utility model;

[0016] Figure 6 This is a schematic diagram of the L-shaped plate in the shaft mounting structure for a printer proposed in this utility model.

[0017] In the diagram: 101. Printer body; 102. Paper roll; 103. Rotating block; 104. L-shaped plate; 105. First locking block; 106. Second locking block; 201. Circular plate; 202. Circular block; 203. Rectangular block; 203-1. Slide plate; 204. Rectangular threaded cylinder; 205. Mounting box; 206. Threaded rod; 207. Rotating knob; 208. Slide rod; 209. Ear plate; 210. Mounting stud. Detailed Implementation

[0018] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figures 1-6 A shaft mounting structure for a printer includes a paper roll 102, with rotating blocks 103 symmetrically arranged at both ends of the paper roll 102. The paper roll 102 is used to mount a paper roll. Considering that the paper roll 102 in traditional structures is usually installed by screw fixing, the disassembly and assembly process is relatively cumbersome, the paper roll 102 is symmetrically connected to two circular plates 201. Each circular plate 201 is fixedly connected to a circular block 202, and each circular block 202 is connected to a rectangular block 203. Each rotating block 103 has a rectangular groove and an installation groove. The opposite ends of the two rectangular blocks 203 are both set in the rectangular groove. Each installation groove is fixedly installed with an installation box 205. Each installation box 205 is provided with a rectangular threaded cylinder 204. Each rectangular block 203 has an insertion groove, and each rectangular threaded cylinder 204 is set in the insertion groove.

[0021] In summary, the improvement of this embodiment lies in:

[0022] By rotating the threaded rod 206, the rectangular threaded cylinder 204 is moved, and the rectangular threaded cylinder 204 is moved out of the insertion slot in the rectangular block 203. The rectangular block 203 can be moved by the ear plate 209, and then the rectangular block 203 is moved out of the rectangular slot in the rotating block 103. The paper roll 102 can then be removed from the rotating block 103, which facilitates the disassembly and installation of the rotating block 103 and makes it easier to replace the paper roll.

[0023] Based on the above, other structures also need to be disclosed in detail, such as:

[0024] Please see Figure 4To prevent the rectangular threaded cylinder 204 from rotating, and considering the axial movement of the rectangular threaded cylinder 204, a rotating knob 207 is rotatably connected to the side wall of each mounting box 205. Each mounting box 205 contains a threaded rod 206, which penetrates the side wall of the mounting box 205 and is fixedly connected to the rotating knob 207. Each threaded rod 206 is threadedly connected to the corresponding rectangular threaded cylinder 204. Each rectangular threaded cylinder 204 is symmetrically fixedly connected to a sliding rod 208. The opposite ends of the two corresponding sliding rods 208 are slidably connected to the inner wall of the mounting box 205. By rotating the rotating knob 207, the threaded rod 206 rotates. When the rectangular threaded cylinder 204 moves, it moves the sliding rod 208, thus limiting the movement of the rectangular threaded cylinder 204 and preventing it from rotating along with the threaded rod 206.

[0025] Please see Figure 5 To ensure the movement of the rectangular block 203 and prevent it from detaching from the circular block 202, each circular block 202 has a connection port on its side wall, and each connection port has a rectangular cavity. Each rectangular block 203 passes through the connection port and is placed in the rectangular cavity. Each rectangular block 203 is symmetrically fixedly connected to two sliding plates 203-1. Each sliding plate 203-1 is slidably connected to the inner wall of the rectangular cavity. When the rectangular block 203 moves, it drives the sliding plate 203-1 to move. The setting of the sliding plate 203-1 prevents the rectangular block 203 from moving out of the rectangular cavity.

[0026] Please see Figure 5 Considering that the paper roll needs to be removed from the paper roll shaft 102 for replacement, each circular plate 201 is fixedly connected with a mounting stud 210, and each paper roll shaft 102 is provided with a threaded groove. Each mounting stud 210 is threaded into the corresponding threaded groove. The circular plate 201 can be installed on the paper roll shaft 102 by means of the mounting stud 210.

[0027] Please see Figures 3 to 5 To facilitate the movement of the rectangular blocks 203, each rectangular block 203 is fixedly connected to an ear plate 209, which is used to move the rectangular block 203 by pushing the ear plate 209.

[0028] Please see Figure 2 and Figure 3 Considering that the paper roll 102 is located in the printer body 101, the printer body 101 is also included. The printer body 101 has a connecting groove, and a mounting cavity is provided in the connecting groove. The rotating block 103 is rotatably connected to the inner wall of the mounting cavity.

[0029] Please see Figure 1 and Figure 6Considering that the paper roll 102 is located inside the printer body 101, an L-shaped plate 104 is provided in the connecting groove to facilitate the disassembly and installation of the paper roll 102. Two first-type locking blocks 105 and second-type locking blocks 106 are fixedly connected to the L-shaped plate 104. Two first-type locking slots that match the first-type locking block 105 and second-type locking slots that match the second-type locking block 106 are opened on the inner wall of the connecting groove. The first-type locking blocks 105 and second-type locking blocks 106 are positioned to locate the L-shaped plate 104.

[0030] In this invention, after the paper on the paper roll is used up, the L-shaped plate 104 is removed. By rotating the rotary knob 207, the rotary knob 207 drives the rectangular threaded cylinder 204 to move through the threaded rod 206. The rectangular threaded cylinder 204 moves out of the insertion slot in the rectangular block 203. The rectangular block 203 can be moved through the ear plate 209, thereby moving the rectangular block 203 out of the rectangular slot in the rotating block 103. This allows the paper roll 102 to be removed from the rotating block 103, facilitating the disassembly and installation of the rotating block 103 and making it easier to replace the paper roll. By rotating the circular plate 201, the mounting stud 210 is removed from the threaded slot of the paper roll 102, allowing the paper roll to be replaced. The contents not described in detail in this description are prior art known to those skilled in the art.

[0031] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A shaft mounting structure for a printer, comprising a paper roll shaft (102), wherein rotating blocks (103) are symmetrically arranged at both ends of the paper roll shaft (102), and the paper roll shaft (102) is used to mount a paper roll, characterized in that, Two circular plates (201) are symmetrically connected to the paper roll (102). Each circular plate (201) is fixedly connected to a circular block (202). Each circular block (202) is connected to a rectangular block (203). Each rotating block (103) is provided with a rectangular groove and an installation groove. The opposite ends of the two rectangular blocks (203) are set in the rectangular groove. Each installation groove is fixedly installed with an installation box (205). Each installation box (205) is provided with a rectangular threaded cylinder (204). Each rectangular block (203) is provided with an insertion groove. Each rectangular threaded cylinder (204) is set in the insertion groove.

2. The shaft mounting structure for a printer according to claim 1, characterized in that, Each of the mounting boxes (205) has a rotating knob (207) rotatably connected to its side wall. Each of the mounting boxes (205) is provided with a threaded rod (206). Each threaded rod (206) passes through the side wall of the mounting box (205) and is fixedly connected to the rotating knob (207). Each threaded rod (206) is threadedly connected to a corresponding rectangular threaded cylinder (204). Each rectangular threaded cylinder (204) is symmetrically fixedly connected with a sliding rod (208). The opposite ends of the two corresponding sliding rods (208) are slidably connected to the inner wall of the mounting box (205).

3. The shaft mounting structure for a printer according to claim 1, characterized in that, Each of the circular blocks (202) has a connection port on its side wall, and each of the connection ports has a rectangular cavity. Each of the rectangular blocks (203) passes through the connection port and is placed in the rectangular cavity. Each of the rectangular blocks (203) is symmetrically fixedly connected to two sliding plates (203-1), and each of the sliding plates (203-1) is slidably connected to the inner wall of the rectangular cavity.

4. The shaft mounting structure for a printer according to claim 1, characterized in that, Each of the circular plates (201) is fixedly connected with a mounting stud (210), and each of the paper rolls (102) has a threaded groove, with each mounting stud (210) threadedly connected in the corresponding threaded groove.

5. A shaft mounting structure for a printer according to claim 1, characterized in that, Each of the rectangular blocks (203) is fixedly connected to an ear plate (209), and the rectangular block (203) is moved by pushing the ear plate (209).

6. The shaft mounting structure for a printer according to claim 1, characterized in that, It also includes a printer body (101), which has a connecting groove and an installation cavity, and the rotating block (103) is rotatably connected to the inner wall of the installation cavity.

7. A shaft mounting structure for a printer according to claim 6, characterized in that, An L-shaped plate (104) is provided in the connecting groove. Two first-type card blocks (105) and second-type card blocks (106) are fixedly connected to the L-shaped plate (104). Two first-type card slots that match the first-type card block (105) and second-type card slots that match the second-type card block (106) are opened on the inner wall of the connecting groove.

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