Cutter device of printer and printer

Abstract

The cutter device of the printer comprises a cutter rest, a fixed blade, a movable blade and a driving assembly, and the fixed blade is connected to the cutter rest. The movable blade is connected to the knife rest in a sliding mode, the movable blade and the fixed blade are vertically arranged, and the opposite side faces of the movable blade and the fixed blade can abut against each other so as to cooperate with the fixed blade for cutting. The driving assembly comprises a base, a motor and a transmission part, the motor is connected to the base, the transmission part is connected to the output end of the motor, the transmission part is connected with and drives the driving part to move, and the driving part is connected to the movable blade and drives the movable blade to move. The base is provided with a movable blade pressing plate, the movable blade pressing plate is located on the side, away from the fixed blade, of the movable blade, the movable blade pressing plate is provided with a pressing block, the base is provided with an elastic pressing piece, the elastic pressing piece penetrates through the movable blade pressing plate to abut against the pressing block, and the pressing block presses the movable blade.

Description

Technical Field

[0001] The utility model relates to the technical field of printers, in particular to a cutter device of a printer and a printer. Background Art

[0002] The cutter device of a printer is a key component for achieving precise cutting of materials such as paper, labels, and films. However, in actual applications, the movable blade is prone to loosening during use, resulting in an increase in the gap between it and the fixed blade, making it impossible to achieve a close fit, which seriously affects the cutting effect and is not conducive to use. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a cutter device for a printer, which can press a movable blade through an elastic pressing member, thereby effectively preventing the movable blade from loosening, ensuring that it always keeps a close fit with the fixed blade, effectively solving the cutting problem caused by the loose movable blade, and improving the overall performance and reliability of the printer.

[0004] The utility model also provides a printer with the cutter device of the printer.

[0005] According to the embodiment of the utility model, the cutter device of the printer comprises a cutter frame, a fixed blade, a movable blade and a driving assembly, wherein the fixed blade is connected to the cutter frame. The movable blade is slidably connected to the cutter frame, the movable blade and the fixed blade are arranged vertically, and the movable blade and the opposite side of the fixed blade can abut against each other to cooperate with the fixed blade for cutting. The driving assembly comprises a base, a motor and a transmission member, wherein the motor is connected to the base, the transmission member is connected to the output end of the motor, the transmission member is connected to and drives the driving member to move, and the driving member is connected to the movable blade and drives the movable blade to move. The base is provided with a movable blade pressure plate, the movable blade pressure plate is located on the side of the movable blade away from the fixed blade, the movable blade pressure plate is provided with a pressure block, and the base is provided with an elastic pressing member, the elastic pressing member passes through the movable blade pressure plate to abut against the pressure block, and the pressure block presses the movable blade.

[0006] The cutter device of the printer according to the embodiments of the present utility model has at least the following beneficial effects: Through the continuous action of the elastic pressing member, the moving blade is firmly pressed on the tool holder, effectively avoiding the loosening problem caused by vibration or long-term use, ensuring the stability and accuracy of cutting. The moving blade and the fixed blade always maintain a close fit, reducing the gap and deviation during the cutting process, improving the flatness and precision of the cutting edge, thereby enhancing the overall quality of the printed output. It effectively solves the cutting problems caused by the loosening of the moving blade, reduces the downtime and maintenance costs caused by failures, extends the service life of the printer, and improves the overall performance and reliability of the printer.

[0007] According to some embodiments of the present utility model, the moving blade pressing plate is provided with a positioning hole for the elastic pressing member to pass through, and the pressing block is arranged on the side of the positioning hole close to the moving blade.

[0008] According to some embodiments of the present utility model, the moving blade pressing plate is provided with two through guiding holes, the two guiding holes are respectively arranged on both sides of the positioning hole, and the pressing block is correspondingly provided with two guiding columns, and the two guiding columns are respectively inserted into the two guiding holes to guide the pressing block to move towards the moving blade.

[0009] According to some embodiments of the present utility model, guiding strips are arranged on both sides of the tool holder, and the two sides of the moving blade are respectively clamped by the guiding strips to guide the moving direction of the moving blade.

[0010] According to some embodiments of the present utility model, the tool holder is provided with a paper outlet hole, the paper outlet hole is located at the cutting position of the moving blade and the fixed blade, and a guide paper board is arranged on one side adjacent to the paper outlet hole, and the guide paper board is inclined towards the other side of the tool holder away from the fixed blade.

[0011] According to some embodiments of the present utility model, the tool holder is provided with at least one guiding rod, the moving blade is correspondingly provided with at least one guiding groove, and at least one guiding rod is inserted into at least one guiding groove in a one-to-one correspondence to guide the moving direction of the moving blade.

[0012] According to some embodiments of the present utility model, the transmission member includes a first transmission gear and a second transmission gear, the first transmission gear is connected to and driven by the output end of the motor, and the second transmission gear meshes with the first transmission gear.

[0013] According to some embodiments of the present utility model, the second transmission gear is eccentrically arranged with respect to the driving member. The moving blade is provided with a driving groove, which is located in the middle of the moving blade. As the second transmission gear rotates, the driving member abuts against the upper or lower part of the driving groove to drive the moving blade to slide up and down.

[0014] According to some embodiments of the present utility model, the transmission member further includes a cover body, which is connected to the base and covers the transmission member, and the moving blade pressing plate is connected to the cover body.

[0015] A printer according to an embodiment of the present utility model includes a cutter device of the printer as described in any one of the above.

[0016] The printer according to an embodiment of the present utility model has at least the following beneficial effects: By installing the cutter device at an appropriate position inside the printer and pressing the moving blade with an elastic pressing member, an efficient and stable cutting function is achieved.

[0017] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The following further describes the present utility model in conjunction with the drawings and embodiments, where:

[0019] Figure 1 is an exploded schematic view of a cutter device of a printer according to an embodiment of the present utility model;

[0020] Figure 2 is a cross-sectional schematic view of a cutter device of a printer according to an embodiment of the present utility model;

[0021] Figure 3 is an internal structural schematic view of a drive assembly of a cutter device of a printer according to an embodiment of the present utility model.

[0022] Reference numerals: tool rest 100; guide strip 110; paper outlet hole 120; paper guide plate 130; guide rod 140; fixed blade 200; moving blade 300; guide groove 310; drive groove 320; drive assembly 400; base 410; motor 420; transmission member 430; first transmission gear 431; second transmission gear 432; drive member 440; cover body 450; cutter sensor 460; moving blade pressing plate 500; positioning hole 501; guide hole 502; pressing block 510; guide post 511; elastic pressing member 520. Detailed Embodiments

[0023] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where like or similar reference numerals denote like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0024] In the description of the present utility model, it should be understood that with respect to the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, and understandings such as "greater than", "less than", "exceeding", etc. do not include the present number, and understandings such as "above", "below", "within", etc. include the present number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0026] In the description of the present utility model, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above terms in the present utility model in combination with the specific content of the technical solution. In the description of the present utility model, the description referring to terms such as "an embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In the description of this specification, the description referring to terms such as "an embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0027] The cutting knife device of a printer is a key component for precisely cutting materials such as paper, labels, and films. However, in actual applications, the moving blade is prone to loosening during use, resulting in an increase in the gap between it and the fixed blade, and thus unable to achieve a tight fit, seriously affecting the cutting effect and being unfavorable for use.

[0028] Therefore, referring to Figure 1 , Figure 2 and Figure 3 , the present utility model provides a cutting knife assembly for a printer, which includes a tool holder 100, a fixed blade 200, a moving blade 300, and a driving assembly 400. The tool holder 100 serves as the basic support structure of the entire cutting knife device, and its shape and size are designed according to the specific requirements of the printer to ensure stability and durability. The fixed blade 200 is firmly connected to the tool holder 100 through fasteners (such as screws or clips), and its position and angle are precisely adjusted to ensure the best cutting angle with the moving blade 300. The moving blade 300 is slidably connected to the tool holder 100, and a contact surface adapted to the pressing block 510 is provided on its back surface so as to be effectively pressed. The driving assembly 400 includes a base 410, a motor 420, and a transmission member 430. The base 410 is fixed inside the printer, the motor 420 is installed on the base 410, and is connected to the driving member 440 through the transmission member 430. The driving member 440 is directly or through an intermediate structure such as a connecting rod connected to the moving blade 300, and the reciprocating movement of the moving blade 300 is realized by the forward and reverse rotation of the motor 420, thereby completing the cutting action.

[0029] Furthermore, a moving blade pressing plate 500 is provided on the base 410, and the moving blade pressing plate 500 is located on the side of the moving blade 300 facing away from the fixed blade 200. The moving blade pressing plate 500 is provided with holes or grooves for installing the pressing block 510, and the pressing block 510 is installed in the holes or grooves and can move along them to adapt to different thicknesses of paper or materials. An elastic pressing member 520 is installed inside or on the side of the base 410. The elastic pressing member 520 can be a spring or an elastic gasket, etc. The elastic pressing member 520 passes through the through holes or slots on the moving blade pressing plate 500 and directly abuts against the pressing block 510, and the pressing block 510 is pushed towards the moving blade 300 by the elastic force to achieve the tight pressing of the moving blade 300.

[0030] Through the continuous action of the elastic pressing member 520, the moving blade 300 is firmly pressed on the tool holder 100, effectively avoiding the loosening problem caused by vibration or long-term use, ensuring the stability and accuracy of cutting. The moving blade 300 and the fixed blade 200 always maintain a tight fit, reducing the gap and deviation during the cutting process, improving the flatness and precision of the cutting edge, and thus enhancing the overall quality of the printed output. It effectively solves the cutting problems caused by the loosening of the moving blade 300, reduces the downtime and maintenance costs caused by failures, extends the service life of the printer, and improves the overall performance and reliability of the printer.

[0031] Referring to Figure 1 , it can be understood that the moving knife pressure plate 500 is provided with a positioning hole 501 for the elastic pressing member 520 to pass through, and the pressing block 510 is arranged on one side of the positioning hole 501 close to the moving blade 300. On the moving knife pressure plate 500, the positioning hole 501 is precisely machined by turning or drilling according to the size and position of the elastic pressing member 520 to ensure that the elastic pressing member 520 can accurately pass through and act on the pressing block 510. The pressing block 510 is installed on one side of the positioning hole 501 close to the moving blade 300, so that when the elastic pressing member 520 applies pressure, the pressing block 510 can directly and effectively press the moving blade 300.

[0032] Furthermore, the moving knife pressure plate 500 is provided with two through guiding holes 502. The two guiding holes 502 are respectively arranged on both sides of the positioning hole 501. The pressing block 510 is correspondingly provided with two guiding columns 511, and the two guiding columns 511 are respectively inserted into the two guiding holes 502 to guide the movement of the pressing block 510 towards the moving blade 300. When the pressing block 510 is subjected to the pressure of the elastic pressing member 520, it will move along the direction of the guiding hole 502 to ensure that the pressing block 510 always applies a stable pressure towards the moving blade 300. The stability and accuracy of the moving blade 300 during the cutting process are ensured through precise guiding and pressing mechanisms, thereby further improving the cutting accuracy.

[0033] Referring to Figure 1 and Figure 2 , guiding strips 110 are arranged on both sides of the tool holder 100. The guiding strips 110 are respectively clamped to both sides of the moving blade 300 to guide the moving direction of the moving blade 300. The guiding strips 110 match the two sides of the moving blade 300 and fix the moving blade 300 by clamping or plugging. The guiding strips 110 not only provide stable support for the moving blade 300, but also ensure the directionality and accuracy of the moving blade 300 during movement, preventing the moving blade 300 from shifting or shaking during the cutting process.

[0034] Furthermore, the tool holder 100 is provided with at least one guiding rod 140, and the moving blade 300 is correspondingly provided with at least one guiding groove 310. The at least one guiding rod 140 is inserted into the at least one guiding groove 310 in a one-to-one correspondence to guide the moving direction of the moving blade 300. The moving blade 300 will be restricted by the guiding rod 140 and the guiding groove 310 during movement to ensure that it always moves along a predetermined direction.

[0035] Referring to Figure 1 and Figure 3The knife holder 100 is provided with a paper discharge hole 120, which is located at the cutting position of the movable blade 300 and the fixed blade 200. The paper discharge hole 120 is used to discharge the cut paper or material smoothly. In order to optimize the discharge path of the paper or material, a paper guide 130 is also provided on the side adjacent to the paper discharge hole 120. The paper guide 130 is inclined toward the side of the knife holder 100 away from the fixed blade 200, so that when the paper or material is cut, it can slide smoothly along the paper guide 130 to the outside of the paper discharge hole 120, avoiding the problem of paper jam or paper accumulation.

[0036] Reference Figure 1 Specifically, in some embodiments, the motor 420 drives the first transmission gear 431 to rotate, and the first transmission gear 431 then meshes with the second transmission gear 432 to transmit power to the second transmission gear 432. In order to achieve the up and down sliding of the movable blade 300, the second transmission gear 432 and the driving member 440 are eccentrically arranged. The movable blade 300 is provided with a driving groove 320, and the driving groove 320 is located in the middle of the movable blade 300. When the second transmission gear 432 rotates, the driving member 440 thereon will abut against the upper or lower part of the driving groove 320, thereby driving the movable blade 300 to slide up and down.

[0037] It should be noted that, in other embodiments, the transmission member 430 in this embodiment adopts a three-gear transmission system to enhance the stability and efficiency of power transmission. Specifically, the transmission member 430 includes a first transmission gear 431, a second transmission gear 432 and a third transmission gear. The first transmission gear 431 is directly connected to and driven by the output end of the motor 420, the second transmission gear 432 is meshed with the first transmission gear 431, and the third transmission gear is further meshed with the second transmission gear 432. Power is transmitted through multi-stage gears to achieve greater torque output and smoother rotation. At the same time, the third transmission gear is eccentrically arranged with the driving member 440 to drive the moving blade 300 to slide up and down.

[0038] Reference Figure 1 The transmission member 430 further includes a cover 450, which is connected to the base 410 and covers the transmission member 430. The movable blade pressing plate 500 is connected to the cover 450. It is easy to understand that the cover 450 can prevent debris such as paper scraps and dust from entering the transmission member 430, reduce the transmission problems or jamming caused by the interference of debris, and improve the stability and reliability of the transmission member 430. It can also reduce the wear and pollution inside the transmission member 430, reduce the failure rate caused by the accumulation of debris, and thus extend the service life of the transmission member 430. On the other hand, by preventing debris from entering the transmission member 430, the frequent maintenance operations for cleaning the debris are reduced, and the maintenance cost and downtime are reduced.

[0039] Reference Figure 1 andFigure 3 , in some embodiments, the driving assembly 400 further includes a cutter sensor 460. The cutter sensor 460 is disposed on the base 410 or the cover 450. The cutter sensor 460 can detect the position information of the moving blade 300 in real time during the cutting process and feed this information back to the control system. The control system precisely controls the driving assembly 400 according to the feedback information of the cutter position sensor. By adjusting the rotation speed and direction of the motor 420 or changing the transmission ratio of the transmission mechanism, etc., the moving blade 300 can move along a predetermined trajectory and speed. At the same time, the control system can also monitor the motion state of the moving blade 300 in real time to ensure its stability and reliability during the cutting process.

[0040] Furthermore, the present utility model further provides a printer, including the cutter device of the above printer. By installing the cutter device at an appropriate position inside the printer and pressing the moving blade 300 through the elastic pressing member 520, an efficient and stable cutting function is achieved.

[0041] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the relevant art, various changes can be made without departing from the gist of the present utility model.

Claims

1. A cutter device for a printer, characterized in that, include: Knife holder; A fixed blade connected to the blade holder; A movable blade is slidably connected to the blade holder, the movable blade and the fixed blade are arranged vertically, and the opposite sides of the movable blade and the fixed blade can abut against each other to cooperate with the fixed blade for cutting; A driving assembly, the driving assembly comprising a base, a motor and a transmission member, the motor is connected to the base, the transmission member is connected to the output end of the motor, the transmission member is connected to and drives the driving member to move, and the driving member is connected to the moving blade and drives the moving blade to move; The base is provided with a moving knife pressure plate, the moving knife pressure plate is located on the side of the moving knife blade away from the fixed knife blade, the moving knife pressure plate is provided with a pressure block, the base is provided with an elastic pressing member, the elastic pressing member passes through the moving knife pressure plate to abut against the pressure block, and the pressure block presses the moving knife blade.

2. The cutter device of the printer according to claim 1, characterized in that The movable blade pressing plate is provided with a positioning hole for the elastic pressing member to pass through, and the pressing block is arranged on a side of the positioning hole close to the movable blade.

3. The cutter device of the printer according to claim 2, characterized in that, The movable blade pressure plate is provided with a penetrating guide hole, and there are two guide holes, which are arranged on both sides of the positioning hole. The pressure block is correspondingly provided with two guide columns, and the two guide columns are respectively correspondingly penetrated through the two guide holes to guide the pressure block to move toward the movable blade.

4. The cutter device of the printer according to claim 1, characterized in that Guide bars are arranged on both sides of the tool holder, and the guide bars are respectively clamped on both sides of the movable blade to guide the moving direction of the movable blade.

5. The cutter device of the printer according to claim 1, characterized in that, The knife holder is provided with a paper outlet hole, and the paper outlet hole is located at the cutting position of the movable blade and the fixed blade. A paper guide is provided on one side adjacent to the paper outlet hole, and the paper guide is inclined toward the other side of the knife holder away from the fixed blade.

6. The cutter device of the printer according to claim 1, characterized in that, The tool holder is provided with at least one guide rod, and the movable blade is correspondingly provided with at least one guide groove. At least one guide rod is plugged into at least one guide groove in a one-to-one correspondence to guide the moving direction of the movable blade.

7. The cutter device of the printer according to claim 1, characterized in that, The transmission member includes a first transmission gear and a second transmission gear, the first transmission gear is connected to and driven by the output end of the motor, and the second transmission gear is meshed with the first transmission gear.

8. The cutter device of the printer according to claim 7, characterized in that, The second transmission gear is eccentrically arranged with the driving member, and the movable blade is provided with a driving groove, and the driving groove is located in the middle of the movable blade. As the second transmission gear rotates, the driving member abuts against the upper or lower part of the driving groove to drive the movable blade to slide up and down.

9. The cutter device of the printer according to claim 7, characterized in that, The transmission member further comprises a cover body, the cover body is connected to the base and covers the transmission member, and the movable knife pressing plate is connected to the cover body.

10. A printer, characterized in that, A cutter device comprising a printer as claimed in any one of claims 1 to 9.

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