Multifunctional thermal printer

Abstract

The utility model relates to the field of thermal printers, and discloses a multifunctional thermal printer which comprises a printer body, a cover plate is arranged on the upper surface of the printer body, a positioning assembly is arranged in the printer body, and a quick disassembly and assembly assembly is arranged on the lower surface of the printer body. The inner wall of the bottom end of the machine body is elastically connected with a printer rolling shaft through a connecting spring, the positioning assembly comprises a connecting plate, the rear surface of the machine body is rotationally connected with a threaded rod, the rear surface of the threaded rod is fixedly connected with a hand wheel, and the front surface of the connecting plate is fixedly connected with a positioning block; the front surface of the positioning block is fixedly connected with a T-shaped block, and the inner wall of the machine body is slidably connected with a moving block. According to the utility model, through the cooperation of the positioning assembly, the problem that the printer rolling shaft is difficult to align during installation is solved, a worker can judge the installation position according to the sensed force difference during installation, and the installation efficiency and accuracy are improved.

Description

Technical Field

[0001] The utility model relates to the field of thermal printers, and particularly relates to a multifunctional thermal printer. Background Art

[0002] In the current era of rapid digital development, the demand for information recording and output is increasing day by day. Traditional printers have some limitations in many scenarios and cannot fully meet the diverse needs of modern users. With the continuous progress of technology, the requirements for printing devices in various industries are getting higher and higher. In the commercial field, such as retail, logistics, catering and other industries, printing devices that are efficient, convenient and can quickly output various bills and labels are needed. Thermal printers are widely used because of their fast printing speed and low noise.

[0003] After retrieval, Chinese Patent Publication No.: CN218577320U discloses a thermal printer, including a printer. An outlet is provided on the upper end surface of the printer. A storage groove is provided inside the printer. Guide rods are provided on both sides inside the storage groove. Guide blocks are sleeved outside the two guide rods. A slot is provided inside the guide block. A printing paper winding roller is provided between the two guide blocks. A spring A located inside the storage groove is provided below the printing paper winding roller. Moving grooves are provided inside both sides of the printer. A pressing block A is provided inside the moving groove. An insertion block is fixedly provided on one side of the pressing block A. The insertion block is inserted into the slot. A pressing block B is provided inside the moving groove. A connecting rod is provided on one side of the pressing block B. A spring B is sleeved outside the connecting rod. A spring C located inside the moving groove is provided on one side of the pressing block A. The utility model is convenient and fast through a printing paper winding replacement roller that can be popped out and stored.

[0004] Although this device has certain improvements, it still has the following deficiencies.

[0005] First of all, during the use of this device, when it is necessary to fix the position of the printer winding roller, the slot on the guide block and the insertion block need to be aligned. However, aligning the slot and the insertion block requires a certain accuracy. The inside of the printer is a blind area of vision, and there are no positioning components on this device. Therefore, it is rather troublesome to fix the position of the printer winding roller.

[0006] And the positions of the pressing block A and the insertion block in this device are fixed by the pressing block B. However, the pressing block B is in a movable state and is only position-limited by the elasticity of the spring B. If the vibration or centrifugal force generated during the operation of the printer winding roller is greater than the elasticity of the spring B, it is easy to cause the insertion block to fall off, and the stability is difficult to guarantee. For this reason, a multifunctional thermal printer is proposed to solve the above problems. Summary of the Utility Model

[0007] To make up for the above deficiencies, the present utility model provides a multifunctional thermal printer, aiming to improve the problems of difficult alignment between the slot and the plug block when the winding roller of the printer is fixed and poor stability of the winding roller of the printer in the prior art.

[0008] To achieve the above object, the present utility model adopts the following technical solutions: A multifunctional thermal printer, including a machine body, a cover plate is provided on the upper surface of the machine body, a positioning component is provided inside the machine body, a quick disassembly and assembly component is provided on the lower surface of the machine body, the inner wall of the bottom end of the machine body is elastically connected with a printer winding shaft through a connecting spring, the positioning component includes a connecting plate, the rear surface of the machine body is rotatably connected with a threaded rod, a handwheel is fixedly connected to the rear surface of the threaded rod, a positioning block is fixedly connected to the front surface of the connecting plate, a T-shaped block is fixedly connected to the front surface of the positioning block, and a moving block is slidably connected to the inner wall of the machine body.

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

[0010] The positioning component further includes a clamping block, a slider is elastically connected to the inner wall of the moving block through a compression spring, a guide rod is fixedly connected to the inner wall of the bottom end of the machine body, a connecting block is slidably connected to the outer wall of the guide rod, a card slot is opened on the left surface of the connecting block, and the printer winding shaft is arranged on the right surface of the connecting block.

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

[0012] The quick disassembly and assembly component includes a heat dissipation hole, a filter screen is inserted into the lower surface of the machine body, a pull ring is fixedly connected to the lower surface of the filter screen, and a rubber pad is fixedly connected to the inner wall of the rear side of the machine body.

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

[0014] One end of the connecting spring is fixedly connected to the inner wall of the bottom end of the machine body, the other end of the connecting spring is fixedly connected to the lower surface of the printer winding shaft, the connecting plate penetrates and is slidably connected to the rear surface of the machine body, and the threaded rod penetrates and is threadedly connected to the front surface of the connecting plate.

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

[0016] The rear surface of the moving block is set as an inclined surface, the front surface of the positioning block is set as an inclined surface, a T-shaped groove is opened at the inclined surface of the rear surface of the moving block, and the T-shaped block is slidably connected to the inner wall of the T-shaped groove.

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

[0018] The right surface of the slider is fixedly connected to the left surface of the clamping block. One end of the compression spring is fixedly connected to the left surface of the slider, and the other end of the compression spring is fixedly connected to the inner wall on the left side of the moving block. The slider penetrates and is slidably connected to the right surface of the moving block.

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

[0020] The right surface of the clamping block is set as an arc surface, and the clamping block is inserted into the inner wall of the clamping groove.

[0021] As a further description of the above technical solution:

[0022] The heat dissipation holes are opened on the rear surface of the machine body, and the filter net is clamped above the rubber pad.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, through the cooperation of the positioning components, the problem of difficult alignment during the installation of the printer take-up reel is solved. When the printer take-up reel is installed, it will drive the connecting block to squeeze the arc surface of the clamping block, causing the compression spring to contract. And when the clamping block is aligned with the clamping groove, the compression spring will push the clamping block and the clamping groove to be automatically inserted. The staff can judge the installation position by feeling the difference in force, improving the installation efficiency and accuracy.

[0025] 2. In the utility model, through the cooperation of the positioning components, when the clamping block and the clamping groove are inserted, rotating the handwheel can drive the connecting plate, the positioning plate, and the T-shaped plate to move forward, and then drive the moving block, the slider, and the clamping block to move towards the middle of the machine body. The clamping block will further insert into the clamping groove, and the planes on the upper and lower surfaces of the clamping block will contact the inner wall of the clamping groove, thereby limiting the connecting block and ensuring the stability of the printer take-up reel.

[0026] 3. In the utility model, by opening heat dissipation holes on the rear surface of the machine body, the heat dissipation effect of the device can be improved, avoiding overheating damage of the device during use and the reduction of efficiency caused by overheating. And through the cooperation of the filter net, the pull ring, and the rubber pad, a filter net that can be flexibly disassembled and assembled is provided at the heat dissipation holes to prevent dust from entering the machine body. Description of the Drawings

[0027] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0028] Figure 2 It is a rear view schematic diagram of the three-dimensional structure of the overall device in the utility model;

[0029] Figure 3 It is a schematic sectional view of the three-dimensional structure of the machine body and the connecting block in the utility model;

[0030] Figure 4In the present utility model Figure 3 Schematic diagram of the enlarged three-dimensional structure of part A

[0031] Figure 5 Schematic diagram of the sectional three-dimensional structure of the connecting plate and the moving block in the present utility model

[0032] Figure 6 Schematic diagram of the sectional three-dimensional structure disassembly of the connecting plate, positioning block and moving block in the present utility model

[0033] Figure 7 Schematic diagram of the sectional three-dimensional structure disassembly of the machine body and the filter screen in the present utility model

[0034] Legend description:

[0035] 1. Machine body; 2. Cover plate; 31. Connecting plate; 32. Threaded rod; 33. Handwheel; 34. Positioning block; 35. T-shaped block; 36. Moving block; 37. Compression spring; 38. Slide block; 39. Clamping block; 310. Guide rod; 311. Connecting block; 301. T-shaped groove; 302. Card slot; 41. Filter screen; 42. Pull ring; 43. Rubber pad; 401. Heat dissipation hole; 5. Connecting spring; 6. Printer take-up reel Specific implementation mode

[0036] 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model

[0037] Refer to Figure 1 - Figure 3, an embodiment provided by the present utility model: a multifunctional thermal printer, including a body 1. The body 1 is a thermal printer, 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 cover plate 2 is provided on the upper surface of the body 1. The rear end of the cover plate 2 is rotatably connected to the body 1 and can be rotated open. There is a hook at the front end of the upper surface of the cover plate 2 for convenient pulling. A positioning component is provided inside the body 1. The positioning component can position the printer take-up reel 6 and can limit the printer take-up reel 6 to ensure the stability of the position of the printer take-up reel 6. A quick disassembly and assembly component is provided on the lower surface of the body 1. The quick disassembly and assembly component facilitates the disassembly, cleaning or replacement of the filter screen 41. The inner wall of the bottom end of the body 1 is elastically connected to a printer take-up reel 6 through a connecting spring 5. The printer take-up reel 6 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. The left and right ends of the printer take-up reel 6 are square, and the middle section is cylindrical. It can be fixed on the connecting block 311, and a driving component is provided inside the square to drive the cylindrical part in the middle section to rotate.

[0038] Refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 , the positioning component includes a connecting plate 31. The rear section of the connecting plate 31 is in the shape of a horizontal plate, and the front section is cylindrical. A threaded rod 32 is rotatably connected to the rear surface of the body 1. The threaded rod 32 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. The threaded rod 32 has self-locking property. A handwheel 33 is fixedly connected to the rear surface of the threaded rod 32. The handwheel 33 is convenient to grip. Rotating the handwheel 33 can drive the threaded rod 32 to rotate. A positioning block 34 is fixedly connected to the front surface of the connecting plate 31. A T-shaped block 35 is fixedly connected to the front surface of the positioning block 34. A moving block 36 is slidably connected to the inner wall of the body 1. The moving block 36 slides horizontally. The positioning component further includes a clamping block 39. A slider 38 is elastically connected to the inner wall of the moving block 36 through a compression spring 37. A guide rod 310 is fixedly connected to the inner wall of the bottom end of the body 1. A connecting block 311 is slidably connected to the outer wall of the guide rod 310 and slides longitudinally. A clamping groove 302 is formed on the left surface of the connecting block 311. The printer take-up reel 6 is arranged on the right surface of the connecting block 311. The positioning block 34, T-shaped block 35, compression spring 37, slider 38, clamping block 39, guide rod 310 and connecting block 311 are all provided in two groups and are symmetrically distributed about the center line of the connecting plate 31.

[0039] Refer to Figure 1 , Figure 3 , Figure 7, The quick-disassembly and assembly component includes a heat dissipation hole 401. A filter screen 41 is inserted into the lower surface of the body 1. The filter screen 41 can block dust from entering the body 1. A pull ring 42 is fixedly connected to the lower surface of the filter screen 41. Pulling the pull ring 42 can drive the filter screen 41 to move. A rubber pad 43 is fixedly connected to the inner wall at the rear side of the body 1. The rubber pad 43 is made of rubber and has a soft texture.

[0040] Refer to Figure 2 , Figure 3 , Figure 5 , Figure 6 , One end of a connecting spring 5 is fixedly connected to the inner wall at the bottom end of the body 1, and the other end of the connecting spring 5 is fixedly connected to the lower surface of the printer take-up reel 6. The connecting spring 5 is in a compressed state at the initial position. After the limit on the printer take-up reel 6 is released, the connecting spring 5 can push the printer take-up reel 6 to move upward. A connecting plate 31 passes through and is slidably connected to the rear surface of the body 1. A threaded rod 32 passes through and is threadedly connected to the front surface of the connecting plate 31. When the threaded rod 32 rotates, it can drive the connecting plate 31 to move in the front-back direction. The rear surface of the moving block 36 is provided with an inclined surface, and the front surface of the positioning block 34 is provided with an inclined surface. A T-shaped groove 301 is formed at the inclined surface of the rear surface of the moving block 36. A T-shaped block 35 is slidably connected to the inner wall of the T-shaped groove 301. When the T-shaped block 35 moves back and forth, it will squeeze the T-shaped groove 301, and thus drive the moving block 36 to move horizontally. The right surface of the slider 38 is fixedly connected to the left surface of the clamping block 39, and the slider 38 and the clamping block 39 will move synchronously. One end of a compression spring 37 is fixedly connected to the left surface of the slider 38, and the other end of the compression spring 37 is fixedly connected to the inner wall on the left side of the moving block 36. The elastic force of the connecting spring 5 is greater than the elastic force of the compression spring 37. The slider 38 passes through and is slidably connected to the right surface of the moving block 36. When the slider 38 moves to the left, it will squeeze the compression spring 37 to generate a reaction force. The right surface of the clamping block 39 is provided with an arc surface. When the arc surface of the clamping block 39 is squeezed, the clamping block 39 will drive the slider 38 to move to the left. The clamping block 39 is inserted into the inner wall of the clamping groove 302. When the clamping block 39 is completely inserted into the clamping groove 302, the flat surfaces on the upper and lower surfaces of the clamping block 39 will also be inserted into the clamping groove 302, and thus the connecting block 311 and the printer take-up reel 6 can be limited.

[0041] Refer to Figure 1 , Figure 3 , Figure 7 , The heat dissipation hole 401 is formed in the rear surface of the body 1. The filter screen 41 is snap-connected above the rubber pad 43. A notch is formed in the lower surface of the filter screen 41, and the rubber pad 43 is located at the notch. When the rubber pad 43 is squeezed by a certain external force, it will deform, and thus the blockage of the filter screen 41 will be released. The opening on the lower surface of the body 1 is slightly thicker than the filter screen 41, which can provide a deformation space for the rubber pad 43.

[0042] Working principle: When this device is in use, if printing paper needs to be replenished, turn the handwheel 33 to drive the threaded rod 32 to rotate, thereby driving the connecting plate 31 and the positioning block 34 to move backward. The positioning block 34 moving backward will drive the T-shaped block 35 to move backward, and the T-shaped block 35 moving backward will squeeze the T-shaped groove 301 to drive the moving blocks 36 on both sides to separate toward the left and right sides, thereby driving the compression spring 37, the slider 38, and the clamping block 39 to open synchronously. When the connecting plate 31 moves to the rearmost side, the arc surface of the clamping block 39 will contact the edge of the clamping groove 302.

[0043] At this time, under the elastic influence of the connecting spring 5, the printer take-up reel 6 and the connecting block 311 will move upward. The connecting block 311 moving upward will squeeze the arc surface of the clamping block 39, thereby driving the clamping block 39 and the slider 38 to open to both sides. The slider 38 will gradually retract into the moving block 36 and will squeeze the compression spring 37 to generate a reaction force. The clamping block 39 will disengage from the clamping groove 302 to release the limit on the connecting block 311. The elastic force of the connecting spring 5 can push the printer take-up reel 6 and the connecting block 311 to the top of the guide rod 310. At this time, it is convenient to replenish the printing paper on the outer wall of the printer take-up reel 6.

[0044] After the printing paper replenishment is completed, press down the printer take-up reel 6, driving the connecting block 311 to move downward and squeezing the connecting spring 5 to generate a reaction force. Gradually, the connecting block 311 will contact the arc surface of the clamping block 39 and will squeeze the arc surface of the clamping block 39. When the arc surface of the clamping block 39 is squeezed, it will drive the slider 38 to open to the left and right sides to release the block on the connecting block 311, and the slider 38 will also squeeze the compression spring 37 to generate a reaction force. When the clamping groove 302 is aligned with the clamping block 39, the reaction force of the compression spring 37 will push the slider 38 and the clamping block 39 to move in the reverse direction, and the clamping block 39 will be inserted into the clamping groove 302. At this time, the pressing force will change, and the staff can feel it. Then, steady the hand pressing the printer take-up reel 6, and then use the other hand to grab the handwheel 33 and rotate it in the reverse direction, driving the threaded rod 32 to reverse, thereby driving the connecting plate 31 and the positioning block 34 to move forward. The positioning block 34 moving forward will drive the T-shaped block 35 to move synchronously. The T-shaped block 35 will squeeze the T-shaped groove 301 to drive the moving blocks 36 on both sides to approach, thereby driving the compression spring 37, the slider 38, and the clamping block 39 to approach. Gradually, the flat surfaces on the upper and lower surfaces of the clamping block 39 will be inserted into the clamping groove 302 to limit the connecting block 311 and the connecting spring 5, completing the fixing work of the connecting spring 5.

[0045] When the filter screen 41 needs to be disassembled and cleaned, the body 1 is tilted, and then the pull ring 42 is pulled to drive the filter screen 41 to separate from the body 1. During the process of the filter screen 41 separating from the body 1, the rubber pad 43 will be squeezed, and the rubber pad 43 will deform under the influence of external force to release the blockage of the filter screen 41. Then, the removed filter screen 41 is cleaned and air-dried. After the air-drying is completed, the filter screen 41 is inserted into the body 1 with force. During the insertion, the rubber pad 43 will also deform under the influence of external force to release the blockage of the filter screen 41. When the filter screen 41 is inserted completely, the rubber pad 43 will align with the notch on the filter screen 41, and the rubber pad 43 will no longer be squeezed. The rubber pad 43 will recover under its own elasticity to limit the position of the filter screen 41.

[0046] 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 recorded 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 in the protection scope of the present invention.

Claims

1. A multifunctional thermal printer, comprising a body (1), characterized in that: The upper surface of the body (1) is provided with a cover plate (2), the interior of the body (1) is provided with a positioning assembly, the lower surface of the body (1) is provided with a quick disassembly assembly, the inner wall of the bottom end of the body (1) is elastically connected to the printer winding shaft (6) through a connecting spring (5), the positioning assembly comprises a connecting plate (31), the rear surface of the body (1) is rotatably connected to a threaded rod (32), the rear surface of the threaded rod (32) is fixedly connected to a hand wheel (33), the front surface of the connecting plate (31) is fixedly connected to a positioning block (34), the front surface of the positioning block (34) is fixedly connected to a T-shaped block (35), and the inner wall of the body (1) is slidably connected to a moving block (36).

2. A multifunctional thermal printer according to claim 1, characterized in that: The positioning assembly also includes a card block (39), the inner wall of the moving block (36) is elastically connected to a sliding block (38) via a compression spring (37), the inner wall of the bottom end of the body (1) is fixedly connected to a guide rod (310), the outer wall of the guide rod (310) is slidably connected to a connecting block (311), a card slot (302) is provided on the left surface of the connecting block (311), and the printer winding shaft (6) is arranged on the right surface of the connecting block (311).

3. A multifunctional thermal printer according to claim 1, characterized in that: The quick disassembly assembly comprises a heat dissipation hole (401), a filter screen (41) is inserted into the lower surface of the body (1), a pull ring (42) is fixedly connected to the lower surface of the filter screen (41), and a rubber pad (43) is fixedly connected to the inner wall of the rear side of the body (1).

4. The multifunctional thermal printer according to claim 1, characterized in that: One end of the connecting spring (5) is fixedly connected to the inner wall of the bottom end of the machine body (1), and the other end of the connecting spring (5) is fixedly connected to the lower surface of the printer winding shaft (6). The connecting plate (31) passes through and is slidably connected to the rear surface of the machine body (1), and the threaded rod (32) passes through and is threadedly connected to the front surface of the connecting plate (31).

5. The multifunctional thermal printer according to claim 1, characterized in that: The rear surface of the moving block (36) is arranged as an inclined surface, the front surface of the positioning block (34) is arranged as an inclined surface, a T-shaped groove (301) is provided at the inclined surface of the rear surface of the moving block (36), and the T-shaped block (35) is slidably connected to the inner wall of the T-shaped groove (301).

6. A multifunctional thermal printer according to claim 2, characterized in that: The right surface of the slider (38) is fixedly connected to the left surface of the clamping block (39), one end of the compression spring (37) is fixedly connected to the left surface of the slider (38), the other end of the compression spring (37) is fixedly connected to the inner wall on the left side of the moving block (36), and the slider (38) penetrates and is slidably connected to the right surface of the moving block (36).

7. A multifunctional thermal printer according to claim 2, characterized in that: The right surface of the clamping block (39) is arranged as an arc surface, and the clamping block (39) is inserted into the inner wall of the clamping slot (302).

8. The multifunctional thermal printer according to claim 3, characterized in that: The heat dissipation hole (401) is provided on the rear surface of the machine body (1), and the filter screen (41) is clamped on the top of the rubber pad (43).

Images