Printer tearing and cutting device
By designing a printer tearing device including an inclined cutter and flattening assembly, the problem of easy damage to the edges of the printing paper when tearing and cutting is solved, and the effect of neat and flattening of the printing paper edges is achieved.
Patent Information
- Application Number
- CN202421955670.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-13
AI Technical Summary
When existing external tearing paper printers tear down the printing paper, the angle and direction factors of the staff pulling the printing paper are affected, resulting in easy damage at the corners of the printing paper, resulting in the problem of missing corners.
A printer tearing device is designed, including a cutter, flattening assembly and return spring. The bottom of the cutter is inclined. Pressing the pressing plate can push the cutter down to cut the paper. The flattening assembly is matched by the guide rod and the return spring to ensure that the edges of the paper are neat and flattened when tearing and cutting.
Through the design of this device, the edges of the printing paper are neat and clean, avoid damage to the edges and corners, and improve the use and storage quality of printing receipts.
Smart Images
Figure CN223030645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of printers, and particularly relates to a printer tearing device. Background Art
[0002] For an external paper tearing printer, generally a row of saw teeth is designed at the paper outlet for tearing the printing paper. In order to ensure smooth paper output, a certain gap is left between the saw teeth and the printing paper. The staff needs to lift the printing paper upward so that it contacts the saw teeth before performing the tearing operation. When the staff lifts the printing paper, generally one side of the printing paper is held, and this side of the printing paper can effectively contact the saw teeth. However, due to factors such as the lifting angle and tearing direction of the other side of the printing paper, it is difficult to ensure effective contact with the saw teeth, resulting in easy damage to the corners of the printing paper during the tearing process, causing the problem of corner loss, which is not conducive to the use and storage of printed bills. Summary of the Utility Model
[0003] The purpose of this application is to provide a printer tearing device to solve the problem proposed in the above background art that in the existing external paper tearing printers during use, the staff needs to lift the printing paper upward so that it contacts the saw teeth before performing the tearing operation. When the staff lifts the printing paper, generally one side of the printing paper is held, and this side of the printing paper can effectively contact the saw teeth. However, due to factors such as the lifting angle and tearing direction of the other side of the printing paper, it is difficult to ensure effective contact with the saw teeth, resulting in easy damage to the corners of the printing paper during the tearing process, causing the problem of corner loss.
[0004] To achieve the above purpose, this application provides the following technical solution: A printer tearing device includes an outer housing. Installation blocks are fixed on both the left and right sides of the outer housing. Installation holes are opened in the installation blocks. An out-paper channel penetrating through the front and back is opened on the outer housing. A knife storage cavity is opened at the top inside the out-paper channel. Two first return springs are fixed at the top outside the outer housing. The top ends of the two first return springs are fixed with a pressing plate. Two guide rods are fixed on the lower surface of the pressing plate. The two first return springs are respectively sleeved outside the two guide rods. Through holes for the guide rods to slide are opened on the outer housing. The bottom ends of the two guide rods are fixed with a carrier plate. The carrier plate is located inside the knife storage cavity. A cutting knife and two flattening components are arranged at the bottom of the carrier plate. The two flattening components are used for flattening the printing paper.
[0005] Further, a knife groove is opened at the bottom inside the out-paper channel, and the knife groove is located directly below the cutting knife.
[0006] Further, a groove is opened at the bottom inside the out-paper channel, and the groove is communicated with the knife groove.
[0007] Further, the two flattening components are symmetrically arranged with respect to the cutting knife.
[0008] Furthermore, the flattening assembly includes a support plate fixedly installed at the bottom of the carrier plate. A reserved groove is formed in the bottom of the support plate. A rotating rod is rotatably connected between the left and right inner walls of the reserved groove through a bearing. A fixing block is fixed to the outer wall of the rotating rod. A U-shaped plate is fixed to the bottom of the fixing block. A flattening roller is rotatably connected between the left and right inner walls of the U-shaped plate through a bearing.
[0009] Furthermore, a plurality of second return springs are fixed between the fixing block and the support plate, and the plurality of second return springs are linearly arranged from left to right.
[0010] In summary, the technical effects and advantages of the present utility model are as follows:
[0011] 1. In the present utility model, this device is used to replace the serrations in the outer tearing paper type printer for tearing the printing paper. The cutter in this device is located at the original serration installation position, and the bottom of the cutter is designed to be inclined. Pressing the pressing plate can push the cutter downward, so that the cutter cuts the printing paper. In this way, the neatness of the edge of the torn printing paper can be ensured. After releasing the pressing plate, the cutter can be pulled back into the internal storage knife cavity by means of two first return springs, making the use of the cutter safer.
[0012] 2. In the present utility model, when pressing the pressing plate, the pressing plate pushes the carrier plate downward through two guide rods, and the carrier plate pushes the support plate downward, so that the support plate pushes the flattening roller downward until the flattening roller abuts against the printing paper. As the pressing plate continues to be pressed downward, the flattening roller will rotate around the rotating rod while squeezing the second return spring to contract. In this way, the two flattening rollers move in opposite directions, which can flatten the printing paper and make the tearing of the printing paper more accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior description.
[0014] Figure 1 It is a three-dimensional structural schematic diagram of a printer tearing device in an embodiment of the present application;
[0015] Figure 2 It is a connection relationship diagram of the outer housing and the mounting block in an embodiment of the present application;
[0016] Figure 3 It is in an embodiment of the present application Figure 3 Another perspective view;
[0017] Figure 4 It is a positional relationship diagram of the pressing plate, the carrier plate, the cutter, and the flattening assembly in an embodiment of the present application;
[0018] Figure 5This is a diagram showing the positional relationship among the pressure plate, guide rod, carrier plate, and cutting knife in the embodiments of this application.
[0019] Figure 6 This is a schematic structural diagram of the flattening assembly in the embodiments of this application.
[0020] In the figure: 1. Outer housing; 2. Mounting block; 3. Mounting hole; 4. Paper outlet channel; 5. Knife storage cavity; 6. First return spring; 7. Pressure plate; 8. Guide rod; 9. Through hole; 10. Carrier plate; 11. Cutting knife; 12. Knife groove; 13. Groove; 14. Support plate; 15. Reserved groove; 16. Rotating rod; 17. Fixed block; 18. U-shaped plate; 19. Flattening roller; 20. Second return spring. Detailed implementation manners
[0021] 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.
[0022] Embodiment: Refer to Figures 1-6 A printer tearing device as shown, which includes an outer housing 1. Mounting blocks 2 are fixed on both the left and right sides of the outer housing 1. Mounting holes 3 are provided in the mounting blocks 2. A card slot adapted to this device is opened at the position where the outer paper tearing printer is equipped with saw teeth. The mounting blocks 2 can be fixed to the outer paper tearing printer by bolts. A paper outlet channel 4 penetrating through the front and back is provided on the outer housing 1. A knife storage cavity 5 is opened at the top inside the paper outlet channel 4. Two first return springs 6 are fixed to the top outside the outer housing 1. The top ends of the two first return springs 6 are fixed to a pressure plate 7. Two guide rods 8 are fixed to the lower surface of the pressure plate 7. The two first return springs 6 are respectively sleeved outside the two guide rods 8. Through holes 9 for the guide rods 8 to slide are provided on the outer housing 1. The bottom ends of the two guide rods 8 are fixed to a carrier plate 10. The carrier plate 10 is located inside the knife storage cavity 5. A cutting knife 11 and two flattening assemblies are arranged at the bottom of the carrier plate 10. The two flattening assemblies are used for flattening the printing paper;
[0023] This device is used to replace the saw teeth in the outer paper tearing printer for tearing the printing paper. The cutting knife 11 in this device is located at the original saw tooth installation position. The bottom of the cutting knife 11 is designed to be inclined. Pressing the pressure plate 7 can push the cutting knife 11 downward, so that the cutting knife 11 cuts the printing paper. In this way, the neatness of the edge of the torn printing paper can be ensured. After releasing the pressure plate 7, the two first return springs 6 can pull the cutting knife 11 back into the knife storage cavity 5, making the use of the cutting knife 11 safer.
[0024] Among them, a knife groove 12 is formed at the bottom inside the paper outlet channel 4. The knife groove 12 is located directly below the cutting knife 11. A groove 13 is formed at the bottom inside the paper outlet channel 4. The groove 13 communicates with the knife groove 12. When the printing paper is exported from the external paper tearing printer, it enters from the back of the paper outlet channel 4, passes through the knife groove 12 and then enters the groove 13. The knife groove 12 is designed to cooperate with the cutting knife 11, so that when the cutting knife 11 moves downward, the printing paper can be better and completely cut off. The formation of the groove 13 can prevent the printing paper from being blocked when it slides out through the knife groove 12.
[0025] Among them, the two flattening components are symmetrically arranged with respect to the cutting knife 11, and the two flattening components can also be folded into the inside of the knife storage cavity 5 for storage. At the same time, the two flattening components can further wrap the cutting knife 11 to increase the safety of the cutting knife 11 during use.
[0026] Among them, the flattening component includes a support plate 14. The support plate 14 is fixedly installed at the bottom of the carrier plate 10. A reserved groove 15 is formed at the bottom of the support plate 14. A rotating rod 16 is rotatably connected between the left and right inner walls of the reserved groove 15 through a bearing. A fixing block 17 is fixed to the outer wall of the rotating rod 16. A U-shaped plate 18 is fixed to the bottom of the fixing block 17. A flattening roller 19 is rotatably connected between the left and right inner walls of the U-shaped plate 18 through a bearing. A plurality of second return springs 20 are fixed between the fixing block 17 and the support plate 14. The plurality of second return springs 20 are linearly arranged from left to right;
[0027] When pressing the pressing plate 7, the pressing plate 7 pushes the carrier plate 10 to move downward by means of the two guide rods 8. The carrier plate 10 pushes the support plate 14 to move downward, so that the support plate 14 pushes the flattening roller 19 to move downward until the flattening roller 19 abuts against the printing paper. As the pressing plate 7 continues to be pressed downward, the flattening roller 19 will rotate around the rotating rod 16 while squeezing the second return spring 20 to contract. In this way, the two flattening rollers 19 move away from each other, and the printing paper can be flattened. When the pressing plate 7 is released, the second return spring 20 can help the flattening roller 19 return to the initial angle.
[0028] The working principle of the present utility model:
[0029] During use, a card slot adapted to this device is formed at the position with saw teeth of the external paper tearing printer. This device is used to replace the saw teeth to perform the paper tearing operation on the printing paper. When installing this device, the bolt passes through the installation hole 3, and the installation block 2 is fixed to the external paper tearing printer by using the bolt, that is, the installation of this device on the external paper tearing printer is completed. After the printing paper completes the printing operation, it can slide out along the paper outlet channel 4;
[0030] When the printing paper needs to be torn and cut, the operator only needs to press the pressing plate 7, so that the pressing plate 7 drives the carrier plate 10 to move downward by means of the guide rod 8. During the downward movement of the carrier plate 10, the cutting knife 11 and the two flattening rollers 19 will be driven to move downward at the same time. The two flattening rollers 19 contact the printing paper earlier than the cutting knife 11. As the pressing plate 7 continues to press down, the two flattening rollers 19 are forced to move away from the cutting knife 11. During the movement, the second return spring 20 will be compressed. The second return spring 20 generates a pressure on the flattening roller 19, so that the flattening roller 19 can closely adhere to the printing paper, thereby flattening the printing paper. The cutting knife 11 is in the original serrated position, and the downward moving cutting knife 11 can cut the printing paper. The operator releases the pressing plate 7, and the elastic force of the first return spring 6 can drive the cutting knife 11 and the flattening roller 19 to move upward. The second return spring 20 returns to its initial state, and the cutting knife 11 folds back into the internal storage knife cavity 5. The operator can remove the cut printing paper.
[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on 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. A printer tearing device, comprising an outer shell (1), characterized in that: The outer shell (1) is fixed with mounting blocks (2) on the left and right sides, and the mounting blocks (2) are provided with mounting holes (3). The outer shell (1) is provided with a paper outlet passage (4) which runs through the front and rear sides, and a knife storage chamber (5) is provided at the top of the inner side of the paper outlet passage (4). Two first return springs (6) are fixed to the top of the outer side of the outer shell (1), and a pressure plate (7) is fixed to the top of the two first return springs (6). Two guide rods (8) are fixed to the lower surface of the pressure plate (7), and the two first return springs (6) are respectively sleeved on the outside of the two guide rods (8). The outer shell (1) is provided with through holes (9) for the guide rods (8) to slide, and a carrier plate (10) is fixed to the bottom ends of the two guide rods (8), and the carrier plate (10) is located inside the knife storage chamber (5). A cutter (11) and two flattening components are provided at the bottom of the carrier plate (10), and the two flattening components are used for flattening printing paper.
2. A printer tearing and cutting device according to claim 1, characterized in that: A knife groove (12) is provided at the bottom of the inner side of the paper outlet channel (4), and the knife groove (12) is located directly below the cutter (11).
3. A printer tearing and cutting device according to claim 2, characterized in that: A groove (13) is provided at the bottom of the inner side of the paper outlet channel (4), and the groove (13) is connected to the knife groove (12).
4. A printer tearing and cutting device according to claim 1, characterized in that: The two flattening components are symmetrically arranged with respect to the cutter (11).
5. A printer tearing and cutting device according to claim 1, characterized in that: The flattening assembly comprises a support plate (14), the support plate (14) being fixedly mounted on the bottom of the carrier plate (10), a reserved groove (15) being provided at the bottom of the support plate (14), a rotating rod (16) being rotatably connected between the left and right inner walls of the reserved groove (15) via a bearing, a fixing block (17) being fixed to the outer wall of the rotating rod (16), a U-shaped plate (18) being fixed to the bottom of the fixing block (17), and a flattening roller (19) being rotatably connected between the left and right inner walls of the U-shaped plate (18) via a bearing.
6. A printer tearing and cutting device according to claim 5, characterized in that: A plurality of second return springs (20) are fixed between the fixed block (17) and the support plate (14), and the plurality of second return springs (20) are linearly arranged from left to right.