Self-cleaning device of thermal printer

Abstract

The utility model relates to the field of thermal printers, and discloses a self-cleaning device of a thermal printer, which comprises a machine body, a machine cover is arranged on the upper surface of the machine body, a mounting seat is arranged on the inner wall of the right side of the machine body, a quick dismounting assembly is arranged on the left surface of the mounting seat, and a self-cleaning assembly is arranged in the machine body. And the rapid dismounting and mounting assembly comprises a first motor, an output shaft of the first motor is fixedly connected with a mounting plate, the inner wall of the left side of the machine body is rotationally connected with a fixing plate, notches are formed in the left surface of the mounting plate and the right surface of the fixing plate, and rubber rollers are inserted into the notches. According to the rubber roller assembly, through cooperation of the quick disassembly and assembly assembly, limiting on the rubber roller can be relieved only by shifting the shifting block, convenient disassembly is achieved, meanwhile, the rubber roller can be conveniently installed by shifting the shifting block, tools do not need to be used, the installation difficulty is lowered, and the installation and disassembly efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printers, in particular to a self-cleaning device for a thermal printer. Background Technique

[0002] In modern office and business environments, thermal printers are widely used due to their advantages such as fast printing speed, low noise, and no need to replace ink cartridges. Among them, in express stations, taxis, cash registers, etc., thermal printers play an important role. However, with the increase in usage time, thermal printers also face some problems.

[0003] First of all, due to long-term use and friction, the surface of the rubber roller shaft will gradually wear. Traditional rubber roller shafts are generally fixed to the printer with bolts. When replacement is needed, not only tools such as screwdrivers need to be prepared, but also careful alignment of the threaded holes for installation and disassembly operations is required, which is rather troublesome and time-consuming.

[0004] Secondly, a rubber roller shaft is usually provided at the opening of the thermal printer to drive the movement of the printing paper. In environments such as express stations, there is more dust in the air. Static electricity is easily generated during the rotation of the rubber roller shaft, which makes dust extremely easy to adsorb on the outer wall of the rubber roller shaft. Over time, the accumulated dust will increase, seriously affecting the smoothness and accuracy of the printing paper transmission, and thus having an adverse impact on the printing work. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a self-cleaning device for a thermal printer, aiming to improve the problems in the prior art that the rubber roller shaft on the thermal printer is troublesome to replace and easily adsorbs dust, thereby affecting the printing work.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: A self-cleaning device for a thermal printer, including a machine body, an engine cover is arranged on the upper surface of the machine body, an installation seat is arranged on the inner wall on the right side of the machine body, a quick disassembly and assembly component is arranged on the left surface of the installation seat, a self-cleaning component is arranged inside the machine body, the quick disassembly and assembly component includes a motor 1, the output shaft of the motor 1 is fixedly connected with a mounting plate, a fixing plate is rotatably connected to the inner wall on the left side of the machine body, notches are opened on the left surface of the mounting plate and the right surface of the fixing plate, and a rubber roller is inserted into the notches.

[0007] As a further description of the above technical solution:

[0008] The quick disassembly and assembly component further includes a card slot, a dial block is elastically connected to the inner wall of the fixing plate through a compression spring, and a clamping block is fixedly connected to the right surface of the dial block.

[0009] As a further description of the above technical solution:

[0010] The self-cleaning component includes a collection box, a left surface of which is provided with a second motor, an output shaft of the second motor is fixedly connected with a cleaning roller, and an inner wall on the left side of the collection box is fixedly connected with a baffle.

[0011] As a further description of the above technical solution:

[0012] The motor 1 is arranged inside the mounting seat, and the mounting plate penetrates through and is rotatably connected to the left surface of the mounting seat.

[0013] As a further description of the above technical solution:

[0014] The clamping groove is arranged on the left surface of the rubber roller, one end of the compression spring is fixedly connected to the inner wall on the left side of the fixing plate, and the other end of the compression spring is fixedly connected to the left surface of the shifting block.

[0015] As a further description of the above technical solution:

[0016] The shifting block penetrates and is slidably connected to the front surface of the fixing plate, and the clamping block is inserted into the inner wall of the clamping slot.

[0017] As a further description of the above technical solution:

[0018] The collecting box penetrates through and is slidably connected to the left surface of the machine body. A pull ring is fixedly connected to the left surface of the collecting box, and the pull ring is located below the second motor.

[0019] As a further description of the above technical solution:

[0020] The cleaning roller penetrates through and is rotatably connected to the left surface of the collecting box.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the cooperation of the quick disassembly and assembly components, the limit on the rubber roller can be released by only turning the dial block to achieve convenient disassembly. At the same time, the rubber roller can be installed in a portable manner by turning the dial block without the use of tools, which reduces the difficulty of installation and improves the efficiency of installation and disassembly.

[0023] 2. In the present invention, by cooperating with the self-cleaning component, starting the second motor can drive the cleaning roller to automatically clean the outer wall of the rubber roller, thereby removing dust in time to prevent dust residue from affecting printing, ensuring smooth and accurate transmission of printing paper, and improving printing quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic front view of the three-dimensional structure of the overall device in the utility model;

[0025] Figure 2 This is a front view schematic diagram of the three-dimensional structure of the overall device in the present utility model in the open state;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure section split of the mounting base, mounting plate, fixing plate, rubber roller, and collection box in the present utility model;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure section of the fixing plate in the present utility model.

[0028] Legend description:

[0029] 1. Machine body; 2. Machine cover; 3. Mounting base; 41. Motor 1; 42. Mounting plate; 43. Fixing plate; 44. Rubber roller; 45. Compression spring; 46. Pusher block; 47. Block; 401. Card slot; 51. Collection box; 52. Baffle; 53. Cleaning roller; 54. Motor 2; 55. Pull ring. Specific implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0031] Refer to Figure 1 - Figure 2 As an embodiment provided by the present utility model: A self-cleaning device for a thermal printer includes a machine body 1. A machine cover 2 is provided on the upper surface of the machine body 1. The machine body 1 and the machine cover 2 form the thermal printer body, which is prior art and can be realized by those skilled in the art. Since it is prior art, it will not be described in detail in this case. A mounting base 3 is provided on the inner wall on the right side of the machine body 1. A quick disassembly and assembly component is provided on the left surface of the mounting base 3. The quick disassembly and assembly component facilitates the disassembly and installation of the rubber roller 44. A self-cleaning component is provided inside the machine body 1. The self-cleaning component can timely clean the impurities and dust remaining on the outer wall of the rubber roller 44, avoiding the accumulation of dust from affecting the conveyance of the printing paper.

[0032] Refer to Figure 2 - Figure 4, the quick disassembly and assembly component includes a motor 41, which is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The output shaft of the motor 41 is fixedly connected to the mounting plate 42. After the motor 41 is started, it can drive the mounting plate 42 to rotate synchronously. The inner wall of the left side of the body 1 is rotatably connected to the fixing plate 43. The left surface of the mounting plate 42 and the right surface of the fixing plate 43 are provided with a notch. The notch is in the shape of an elongated strip and is opened in the vertical direction. A rubber roller 44 is inserted into the notch. The left and right ends of the rubber roller 44 are set to be elongated protrusions that fit the notch, and the middle section is cylindrical. The quick disassembly and assembly component also includes a slot 401. The inner wall of the fixing plate 43 is elastically connected to a shift block 46 through a compression spring 45. The right surface of the shift block 46 is fixedly connected to a card block 47. The shift block 46 and the card block 47 will move synchronously, and the center of the card block 47 and the rubber roller 44 are on the same horizontal line.

[0033] Reference Figure 1 - Figure 3 The self-cleaning component includes a collection box 51. The collection box 51 is hollow inside and can collect the cleaned dust for subsequent processing. A motor 2 54 is provided on the left surface of the collection box 51. The motor 2 54 is a prior art and can be implemented by technicians in this field. Since it is a prior art, it will not be described in detail in this case. The output shaft of the motor 2 54 is fixedly connected to a cleaning roller 53. The outer wall array of the cleaning roller 53 has bristles. The bristles are soft and can contact the lower surface of the rubber roller 44. When the rubber roller 44 rotates, the bristles can sweep the dust on the outer wall of the rubber roller 44. The bristles penetrate the upper surface of the collection box 51. When the collection box 51 is pulled out, the bristles can be deformed and will not cause obstruction. A baffle 52 is fixedly connected to the inner wall on the left side of the collection box 51. The baffle 52 is provided with two groups, which are located at the top of the inner wall of the collection box 51 and are distributed on the front and rear sides of the cleaning roller 53. The swept dust can be blocked to prevent the dust from running around under the inertia of the bristles.

[0034] Reference Figure 2 - Figure 4, the first motor 41 is arranged inside the mounting seat 3, the mounting plate 42 penetrates and is rotatably connected to the left surface of the mounting seat 3. The mounting seat 3 provides support for the first motor 41 and the mounting seat 3. The card slot 401 is opened on the left surface of the rubber roller 44. There are two groups of card slots 401, which are symmetrically distributed on the left and right sides of the rubber roller 44. This enables the rubber roller 44 to be installed without the need to distinguish directions, facilitating installation. One end of the compression spring 45 is fixedly connected to the inner wall on the left side of the fixed plate 43, and the other end of the compression spring 45 is fixedly connected to the left surface of the dial block 46. The dial block 46 penetrates and is slidably connected to the front surface of the fixed plate 43. When the dial block 46 moves to the left, it can drive the latch 47 to move to the left, and will squeeze the compression spring 45 to generate a reaction force. The latch 47 is inserted into the inner wall of the card slot 401. When the latch 47 moves to the left, it will disengage from the card slot 401 to release the limit on the rubber roller 44.

[0035] Refer to Figure 1 - Figure 3 , the collection box 51 penetrates and is slidably connected to the left surface of the machine body 1. The collection box 51 is a drawer, which is a prior art and can be realized by those skilled in the art. Since it is a prior art, it will not be described in detail in this case. The collection box 51 can be locked on the machine body 1. A pull ring 55 is fixedly connected to the left surface of the collection box 51. Pulling the pull ring 55 can pull out the collection box 51. The pull ring 55 is located below the second motor 54. The cleaning roller 53 penetrates and is rotatably connected to the left surface of the collection box 51.

[0036] Working principle: When the device is in use, start the first motor 41 to drive the mounting plate 42 to rotate, and then it can drive the fixed plate 43 and the rubber roller 44 to rotate. The rotating rubber roller 44 can transport the printing paper, and the lower surface of the rotating rubber roller 44 will also contact the bristles on the outer wall of the cleaning roller 53. The bristles can sweep off the dust and impurities adhered to the outer wall of the rubber roller 44. The swept dust and impurities will fall into the collection box 51 under the influence of gravity and be collected. And during use, the second motor 54 can also be started to drive the cleaning roller 53 to rotate to improve the cleaning effect.

[0037] When the dust in the collection box 51 needs to be cleaned, turn off the first motor 41 and the second motor 54, and release the limit between the machine body 1 and the collection box 51. Then grasp the pull ring 55 to pull out the collection box 51. After the collection box 51 is pulled out, clean the dust inside it. After cleaning, close the collection box 51 and lock it to the machine body 1 for convenient subsequent use.

[0038] When the rubber roller 44 needs to be replaced, the machine cover 2 is rotated and opened, and then the block 46 is toggled to the left to drive the latch 47 to move to the left. The latch 47 moving to the left will disengage from the card slot 401 to release the limit on the rubber roller 44, and then the rubber roller 44 can be removed to complete the disassembly. When the rubber roller 44 needs to be installed, the rubber roller 44 is aligned with the notches on the mounting plate 42 and the fixing plate 43 and inserted. During insertion, the block 46 is toggled to the left to drive the latch 47 to move to the left to release the block on the rubber roller 44, and the block 46 moving to the left will also compress the compression spring 45 to generate a reaction force. When the rubber roller 44 is inserted into the notch, the latch 47 will be aligned with the card slot 401. At this time, the block 46 is released, and under the push of the reaction force of the compression spring 45, the block 46 and the latch 47 will move to the right, and the latch 47 will be inserted into the card slot 401 to limit the rubber roller 44, completing the installation work.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Self-cleaning device for thermal printer, comprising a body (1), characterized in that: The upper surface of the body (1) is provided with an engine cover (2). The inner wall on the right side of the body (1) is provided with a mounting seat (3). The left surface of the mounting seat (3) is provided with a quick disassembly and assembly component. The inside of the body (1) is provided with a self-cleaning component. The quick disassembly and assembly component includes a motor one (41). The output shaft of the motor one (41) is fixedly connected with a mounting plate (42). The inner wall on the left side of the body (1) is rotatably connected with a fixing plate (43). Notches are formed on the left surface of the mounting plate (42) and the right surface of the fixing plate (43). A rubber roller (44) is inserted into the notch.

2. The self-cleaning device of the thermal printer according to claim 1, wherein: The quick disassembly and assembly component further includes a card slot (401). The inner wall of the fixing plate (43) is elastically connected with a dial block (46) through a compression spring (45). The right surface of the dial block (46) is fixedly connected with a clamping block (47).

3. The self-cleaning device of the thermal printer according to claim 1, characterized in that: The self-cleaning component includes a collection box (51). The left surface of the collection box (51) is provided with a motor two (54). The output shaft of the motor two (54) is fixedly connected with a cleaning roller (53). The inner wall on the left side of the collection box (51) is fixedly connected with a baffle (52).

4. The self-cleaning device of the thermal printer according to claim 1, characterized in that: The motor one (41) is arranged inside the mounting seat (3). The mounting plate (42) penetrates and is rotatably connected to the left surface of the mounting seat (3).

5. The self-cleaning device of the thermal printer according to claim 2, characterized in that: The card slot (401) is formed on the left surface of the rubber roller (44). One end of the compression spring (45) is fixedly connected to the inner wall on the left side of the fixing plate (43). The other end of the compression spring (45) is fixedly connected to the left surface of the dial block (46).

6. The self-cleaning device of the thermal printer according to claim 2, characterized in that: The dial block (46) penetrates and is slidably connected to the front surface of the fixing plate (43). The clamping block (47) is inserted into the inner wall of the card slot (401).

7. The self-cleaning device of the thermal printer according to claim 3, characterized in that: The collection box (51) penetrates and is slidably connected to the left surface of the body (1). The left surface of the collection box (51) is fixedly connected with a pull ring (55). The pull ring (55) is located below the motor two (54).

8. The self-cleaning device of the thermal printer according to claim 3, characterized in that: The cleaning roller (53) penetrates and is rotatably connected to the left surface of the collection box (51).

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