A movable paper cutter printer
By designing a movable paper cutting knife printer in a thermal printer, using a 'V'-shaped inclined blade with low middle and high ends and elastic parts, the problem of paper being unable to be cut or the cutting surface in the prior art is solved, and the cutting surface is not neat, so as to achieve It has efficient and safe paper cutting effect, with a cutting rate of more than 98%.
Patent Information
- Application Number
- CN202111052760.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-09-09
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2041-09-09
AI Technical Summary
The paper cutting knife structure of existing thermal printers is a fixed serrated blade, which causes the paper to be unable to cut or the cutting surface is not neat, and needs to be improved to improve the cutting effect.
Design a movable paper cutting knife printer, adopting a 'V'-shaped inclined blade with low middle and high ends, and through the cooperation of the first and second elastic parts, a dislocation of the knife tip, a cutting knife connecting plate and a cutting knife The component overcomes elastic downward pressure when pressing. When cutting paper, the blade has a broken surface effect on the paper to ensure that the cutting is smooth.
The paper is cut smoothly, the paper is flat and has no notches, and the cutting rate reaches more than 98%, which improves the safety and reliability of cutting.
Smart Images
Figure CN113696646B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of printers, mainly to the field of thermal printers, and more specifically to a movable paper cutter printer with a movable paper cutter. Background Art
[0002] Thermal printers are widely used for printing receipts. In order to improve their portability, wireless and Bluetooth functions have been added, allowing them to print anytime and anywhere, greatly broadening their application areas.
[0003] Printers are generally equipped with a paper cutter to cut printed paper such as receipts. However, the paper cutter structure of existing printers is a fixed serrated blade, and single-sided paper without a virtual cut seam is prone to the situation that the paper cannot be cut or the cut surface is uneven. Therefore, further improvement is needed. Summary of the invention
[0004] Therefore, the present invention provides a movable paper cutter printer to solve the above problems.
[0005] To achieve the above purpose, the technical solution provided by the present invention is as follows:
[0006] A movable paper cutter printer comprises a shell, a printer component and a paper cutter component arranged on the shell, the shell comprises an upper shell and a lower shell, the paper cutter component is arranged on the upper shell; the paper cutter component comprises: a cutter connecting plate, a first elastic member and a cutter, the cutter is fixed on the cutter connecting plate with the blade facing downward, the first elastic member applies an upward elastic force to the cutter connecting plate; the blade of the cutter is a "V"-shaped inclined blade with a low middle part and high ends, and has a high and low misaligned blade tip in the middle position.
[0007] Furthermore, the cutter is an integrated structure or is formed by splicing a plurality of blades.
[0008] Furthermore, the cutter is formed by splicing two blades, the two blades are a first blade and a second blade, the blade of the first blade is higher on the left and lower on the right; the blade of the second blade is lower on the left and higher on the right, the right end of the first blade is spliced with the left end of the second blade; forming a "V"-shaped inclined blade; and at the splicing position, the blade of the second blade is lower than the blade of the first blade, thereby forming a blade tip with staggered heights.
[0009] Furthermore, the upper shell is provided with a guide column, the first elastic member is a spring, the spring is sleeved on the guide column, and the cutter connecting plate is sleeved on the guide column and abuts against the upper end of the spring.
[0010] Furthermore, the paper cutter assembly also includes a cutter pressing paper and a second elastic member. The cutter pressing paper is located below the cutter connecting plate and is movably connected to the cutter connecting plate up and down. The cutter pressing paper is provided with a clearance slot for the cutter to pass through.
[0011] Furthermore, both ends of the cutter pressing paper are passed through an axle column and are arranged on the cutter connecting plate. The upper end of the axle column is provided with a limit boss for abutting and limiting on the cutter connecting plate. The second elastic member is a spring, and the spring is sleeved on the axle column, and its upper and lower ends respectively abut on the cutter connecting plate and the cutter pressing paper.
[0012] Furthermore, the paper pressing bottom surface of the cutter paper pressing board is an arc-shaped bottom surface whose middle portion is slightly lower than the two ends.
[0013] Furthermore, a paper cutting button is provided on the surface of the upper shell, and the paper cutting button abuts against the upper end of the cutter connecting plate.
[0014] Furthermore, the upper shell is also provided with a limiting component for limiting the downward pressure of the paper cutter assembly, and the lower shell is provided with a trigger part; when the upper shell is separated from the lower shell, the limiting component limits the paper cutter assembly; when the upper shell and the lower shell are covered, the trigger part triggers the limiting component to release the restriction on the paper cutter assembly.
[0015] Furthermore, the limiting assembly includes a cutter cover-opening baffle and a third elastic member, the cutter cover-opening baffle can be slidably assembled in the upper shell, and extends with an abutting protrusion toward the direction of the paper cutter assembly, and the third elastic member applies an elastic force toward the direction of the paper cutter assembly to the cutter cover-opening baffle, so that the abutting protrusion is inserted under the cutter connecting plate to limit the downward pressure of the paper cutter assembly; the triggering part is a boss arranged on the lower shell, the boss has a first inclined guide surface, and the cutter cover-opening baffle is provided with a second inclined guide surface; when the upper shell and the lower shell are covered, the second inclined guide surface abuts against the first inclined guide surface and converts the downward movement of the upper shell into a translation that drives the cutter cover-opening baffle away from the paper cutter assembly, thereby causing the abutting protrusion to disengage from the cutter connecting plate.
[0016] The technical solution provided by the present invention has the following beneficial effects:
[0017] When cutting is required, the paper cutter assembly is pressed, and the cutter connecting plate and the cutter thereon overcome the elastic force of the first elastic member and press downward, and the middle part of the cutter will first contact the paper, and the misaligned tip of the cutter will break the paper, and the cutter connecting plate and the cutter will continue to move downward, and the inclined blade will have a good cutting effect on the paper, so that the printing paper is smoothly cut, and the cut paper is flat and has no gaps. After the cutting is completed, the pressing force is removed, and the cutter connecting plate and the cutter move upward and reset under the action of the first elastic member.
[0018] The paper cutting structure is safe and reliable and can cut paper smoothly. After the paper cutting test, the cutting rate is over 98%. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 The above is a schematic diagram of the appearance of the movable paper cutter printer in the embodiment in the closed state;
[0020] Figure 2 The figure shows a partial structural exploded schematic diagram of a movable paper cutter printer in the embodiment;
[0021] Figure 3 The figure shows a schematic diagram of the structure of the movable paper cutter printer in the embodiment, in which the upper housing is hidden in the closed state;
[0022] Figure 4 The figure shows an exploded schematic diagram of the connection structure of the paper cutter assembly in the embodiment;
[0023] Figure 5 Shown Figure 4 A magnified schematic diagram of the middle A area;
[0024] Figure 6 The figure shows the structure schematic diagram of the cutter press paperboard in the embodiment;
[0025] Figure 7 Shown Figure 2 a cross-sectional view of the structure shown;
[0026] Figure 8 Shown Figure 7 A magnified schematic diagram of the middle B area;
[0027] Fig. 9 Shown is a schematic diagram of the structure of the limiting component in the embodiment;
[0028] Fig.10 Shown is a schematic diagram of the appearance of the lower shell in the embodiment. DETAILED DESCRIPTION
[0029] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.
[0030] The present invention will now be further described with reference to the accompanying drawings and specific implementation methods.
[0031] Reference Figures 1 to 6As shown, a movable paper cutter printer provided in this embodiment includes a housing and a printer assembly (not shown) and a paper cutter assembly 20 arranged on the housing. The housing includes an upper housing 11 and a lower housing 12. Specifically, the upper housing 11 and the lower housing 12 are hingedly arranged to form a flip-top structure. The upper housing 11 includes an upper outer housing 111 and a lower inner housing 112 that cover each other. Of course, in other embodiments, it is not limited to a hinged arrangement. The paper cutter assembly 20 is arranged on the upper housing 11; the paper cutter assembly 20 includes: a cutter connecting plate 21, a first elastic member 23 and a cutter 22. The cutter 22 is fixed on the cutter connecting plate 21 with the blade facing downward. The first elastic member 23 applies an upward elastic force to the cutter connecting plate 21; the blade of the cutter 22 is a "V"-shaped inclined blade with a low middle portion and high ends. Because it extends downward, the middle portion is low, that is, the middle position is more protruding; and there is a high and low misaligned blade tip in the middle position, that is, one side is high and the other side is low, such as Figure 5 As shown, point a on the left is higher than point b on the right, and the lower side forms a broken blade tip to increase the sharpness of the blade 22 in cutting paper.
[0032] When cutting is required, the paper cutter assembly 20 is pressed, and the cutter connecting plate 21 and the cutter 22 thereon overcome the elastic force of the first elastic member 23 and are pressed downward, and the middle of the cutter 22 will first contact the paper, and the misaligned tip (such as Figure 5 The tip of the knife at point b in the figure has a breaking effect on the paper, and the cutter connecting plate 21 and the cutter 22 continue to move downward, and the inclined blade has a good cutting effect on the paper, so that the printing paper is cut smoothly, and the cut paper is flat and has no gaps. After the cutting is completed, the pressing force is removed, and the cutter connecting plate 21 and the cutter 22 move upward and reset under the action of the first elastic member 23.
[0033] The paper cutting structure of this solution is safe and reliable and can smoothly cut paper. According to the paper cutting test, the cutting rate is over 98%.
[0034] Specifically, the cutter 22 is formed by splicing a plurality of blades. In this specific embodiment, the cutter 22 is formed by splicing two blades, namely a first blade 221 and a second blade 222. The blade edge of the first blade 221 is higher on the left and lower on the right; the blade edge of the second blade 222 is lower on the left and higher on the right. The right end of the first blade 221 is spliced with the left end of the second blade 222 to form a "V"-shaped inclined blade; and the blade edge of the second blade 222 (i.e. Figure 5 b in the figure) is lower than the cutting edge of the first blade 221 (i.e. Figure 5The blade tip is formed at a point a in the middle of the blade tip, thereby forming a high-low misaligned blade tip. The use of two blades for splicing is easier to implement in preparation, and only two different blades need to be selected for splicing. Of course, in other embodiments, the number of blades is not limited to this, and more than two blades can also be used for splicing. Alternatively, a single blade is used for integral molding, that is, an integrated structure, etc.
[0035] The upper shell 11 is provided with a guide column 102, and the cutter connecting plate 21 is sleeved on the guide column 102, thereby forming an up and down guiding movement. The first elastic member 23 is a spring (defined as a first spring), which is sleeved on the guide column 102, and the cutter 22 connecting plate abuts against the upper end of the first spring, thereby applying an upward elastic force to the cutter connecting plate 21. The space is fully utilized, the structural layout is ingenious, and no extra space is occupied. Of course, in other embodiments, the first elastic member 23 can also be replaced by other elastic devices such as tension springs, shrapnel, etc., as long as an upward elastic force can be applied to the cutter connecting plate 21. The arrangement of the cutter connecting plate 21 and the first elastic member 23 is not limited to this.
[0036] The paper cutter assembly 20 also includes a cutter pressboard 24 and a second elastic member 25. The cutter pressboard 24 is located below the cutter connecting plate 21 and is movably connected to the cutter connecting plate 21. A clearance slot 2401 is provided on the cutter pressboard 24 for the cutter 22 to pass through. The cutter pressboard 24 is set so that when the paper cutter assembly 20 is pressed to move the cutter connecting plate 21 and the cutter 22 downward, the cutter pressboard 24 also moves downward under the action of the second elastic member 25 until it contacts the paper below. The continued downward movement of the cutter connecting plate 21 and the cutter 22 will squeeze the second elastic member 25 to deform it. Under the action of the second elastic member 25, the cutter pressboard 24, the paper, and the lower shell 12 are forced to become tighter and tighter until the cutting is completed and rebounds. The paper can be cut better by the cutter pressboard 24 pressing the paper, and the effect is better.
[0037] Specifically, the two ends of the cutter pressing paperboard 24 are passed through the cutter connecting plate 21 through the shaft column 241, and the upper end of the shaft column 241 is provided with a limiting boss 242 for abutting against the cutter connecting plate 21. In the non-pressed state, the limiting boss 242 abuts against the cutter connecting plate 21 to achieve the connection between the cutter pressing paperboard 24 and the cutter connecting plate 21. The second elastic member 25 is a spring (defined as a second spring), which is sleeved on the shaft column 241, and its upper and lower ends abut against the cutter connecting plate 21 and the cutter pressing paperboard 24 respectively. The second elastic members 25 at both ends are used to press the cutter pressing paperboard 24, so that the force is more uniform, and the force on the paper is also more uniform.
[0038] At the same time, more preferably, the paper pressing bottom surface 2402 of the cutter pressing paper board 24 is an arc-shaped bottom surface whose middle position is slightly lower than the two ends. In this way, the two ends of the cutter pressing paper board 24 are pressed down by force, and the force is reflected at the two ends. Then, the paper pressing bottom surface 2402 of the cutter pressing paper board 24 is made more convex in the middle position (that is, the middle position is slightly lower than the two ends), and the pressure is tighter, and the effect is better.
[0039] Of course, in other embodiments, the structure of the cutter press paper 24 is not limited thereto, or the cutter press paper 24 may not be needed.
[0040] The surface of the upper shell 11 is provided with a paper cutting button 101, and the paper cutting button 101 abuts against the upper end of the cutter connecting plate 21. The paper cutting button 101 is provided to facilitate the pressing operation. Of course, in other embodiments, the paper cutting button 101 may not be provided, such as exposing the cutter connecting plate 21 of the paper cutter assembly 20 to the surface of the upper shell 11 for direct pressing.
[0041] Continue to refer to Figures 7 to 10 As shown, further, in order to prevent the cutter 22 of the paper cutter assembly 20 from being pressed out and causing injury after the upper shell 11 is opened, in this embodiment, a limiting assembly 30 for limiting the downward pressure of the paper cutter assembly 20 is provided on the upper shell 11, and a triggering part is also provided on the lower shell 12; when the upper shell 11 is separated from the lower shell 12, the limiting assembly 30 limits the paper cutter assembly 20; in this way, the cutter 22 of the paper cutter assembly 20 can be effectively prevented from being pressed out after the cover is opened. When the upper shell 11 and the lower shell 12 are covered, the triggering part triggers the limiting assembly 30 to release the restriction on the paper cutter assembly 20, so that the paper cutter assembly 20 can be used normally.
[0042] One of the preferred implementation structures in this embodiment is as follows: the limiting assembly 30 includes a cutter cover-opening baffle plate 31 and a third elastic member 32. The cutter cover-opening baffle plate 31 is slidably mounted in the upper shell 11 and has an abutting protrusion 311 extending toward the paper cutter assembly 20. Specifically, the third elastic member 32 is also a spring (defined as a third spring), one end of the third elastic member 32 abuts against the upper shell 11, and the other end abuts against the cutter cover-opening baffle plate 31. The third elastic member 32 applies an elastic force toward the paper cutter assembly 20 to the cutter cover-opening baffle plate 31, so that the abutting protrusion 311 is inserted under the cutter connecting plate 21 to limit the downward pressure of the paper cutter assembly 20.
[0043] The triggering part is a boss 121 arranged on the lower shell 12, and the boss 121 has a first inclined guide surface 122, and the cutter cover-opening baffle 31 is provided with a second inclined guide surface 312; when the upper shell 11 and the lower shell 12 are covered, the second inclined guide surface 312 abuts against the first inclined guide surface 122 and converts the downward movement of the upper shell 11 into a translation that drives the cutter cover-opening baffle 31 away from the paper cutter assembly 20, so that the abutting convex part 311 is separated from the cutter connecting plate 21, and the restriction on the paper cutter assembly 20 is released. The structural design is simple and practical. And no additional operation is required. Automatic limit is realized when the cover is opened, and automatic release is realized when the cover is closed.
[0044] Of course, in other embodiments, the structure of the limiting component 30 is not limited thereto, and the trigger portion may also be replaced by a manually controlled toggle member or the like.
[0045] Although the present invention has been specifically shown and described in conjunction with the preferred embodiments, it should be understood by those skilled in the art that various changes may be made to the present invention in form and details without departing from the spirit and scope of the present invention as defined by the appended claims, all of which are within the scope of protection of the present invention.
Claims
1. A movable paper cutter printer, comprising a housing, and a printer assembly and a paper cutter assembly arranged on the housing, wherein the housing comprises an upper housing and a lower housing, and the paper cutter assembly is arranged on the upper housing; characterized in that: The paper cutter assembly comprises: a cutter connecting plate, a first elastic member and a cutter, wherein the cutter is fixed on the cutter connecting plate with the blade facing downward, and the first elastic member applies an upward elastic force to the cutter connecting plate; the blade of the cutter is a "V"-shaped inclined blade with a low middle portion and high ends, and has a high and low staggered blade tip in the middle position; The cutter is an integrated structure or is composed of multiple blades spliced together; The cutter is formed by splicing two blades, the two blades are a first blade and a second blade, the blade edge of the first blade is higher on the left and lower on the right; the blade edge of the second blade is lower on the left and higher on the right, the right end of the first blade is spliced with the left end of the second blade to form a "V"-shaped inclined blade; and at the splicing position, the blade edge of the second blade is lower than the blade edge of the first blade, thereby forming a blade tip with a high and low misaligned setting; The upper shell is also provided with a limiting component for limiting the downward pressure of the paper cutter assembly, and the lower shell is provided with a trigger part; when the upper shell is separated from the lower shell, the limiting component limits the paper cutter assembly; when the upper shell and the lower shell are covered, the trigger part triggers the limiting component to release the restriction on the paper cutter assembly; The limiting assembly includes a cutter cover-opening baffle and a third elastic member, the cutter cover-opening baffle can be slidably assembled in the upper shell and extends with an abutting protrusion toward the direction of the paper cutter assembly, and the third elastic member applies an elastic force toward the direction of the paper cutter assembly to the cutter cover-opening baffle, so that the abutting protrusion is inserted under the cutter connecting plate to limit the downward pressure of the paper cutter assembly; the triggering part is a boss arranged on the lower shell, the boss has a first inclined guide surface, and the cutter cover-opening baffle is provided with a second inclined guide surface; when the upper shell and the lower shell are covered, the second inclined guide surface abuts against the first inclined guide surface and converts the downward movement of the upper shell into a translation that drives the cutter cover-opening baffle away from the paper cutter assembly, thereby causing the abutting protrusion to disengage from the cutter connecting plate.
2. The movable paper cutter printer according to claim 1, characterized in that: The upper shell is provided with a guide column, the first elastic member is a spring, the spring is sleeved on the guide column, and the cutter connecting plate is sleeved on the guide column and abuts against the upper end of the spring.
3. The movable paper cutter printer according to claim 1, characterized in that: The paper cutter assembly also includes a cutter pressing paper board and a second elastic member. The cutter pressing paper board is located below the cutter connecting plate and is movably connected to the cutter connecting plate. A clearance slot hole for the cutter to pass through is provided on the cutter pressing paper board.
4. The movable paper cutter printer according to claim 3, characterized in that: The two ends of the cutter pressing paper are passed through the cutter connecting plate through a shaft column, and the upper end of the shaft column is provided with a limiting boss for abutting and limiting on the cutter connecting plate. The second elastic member is a spring, and the spring is sleeved on the shaft column, and its upper and lower ends are respectively abutted on the cutter connecting plate and the cutter pressing paper.
5. The movable paper cutter printer according to claim 4, characterized in that: The paper pressing bottom surface of the cutter paper pressing board is an arc-shaped bottom surface whose middle part is slightly lower than the two ends.
6. The movable paper cutter printer according to claim 1, characterized in that: A paper cutting button is arranged on the surface of the upper shell, and the paper cutting button abuts against the upper end of the cutter connecting plate.