Fixed cutter structure and cutter assembly of printer

Abstract

The utility model provides a stationary knife structure of a printer, which comprises a stationary knife holder and a stationary blade, and a first supporting seat is arranged on the upper end surface of the stationary knife holder; the fixed blade is arranged on the fixed blade seat, and the middle part of the fixed blade is jacked up through the first supporting seat; a first inclined surface is arranged on the upper end surface of the first supporting seat, is positioned on the short side of the fixed blade and is backwards along the direction of a cutting edge, and the height is gradually reduced; the utility model further provides a cutter assembly, the cutter assembly is of a fixed cutter structure, and the cutter assembly further comprises a movable cutter assembly matched with the fixed cutter structure. According to the fixed cutter structure, the first supporting base is arranged to jack up the middle of the fixed cutter, a better paper cutting effect is achieved, meanwhile, the first inclined face is arranged on the first supporting base so that the whole fixed cutter can be arranged in an inclined mode, and when the movable cutter and the fixed cutter interact, the paper cutting effect is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printer accessories, in particular to a fixed knife structure and a cutter assembly of a printer. Background Art

[0002] Most of the bank's ATMs and supermarket cash registers are equipped with thermal printers for printing transaction receipts or tickets. A thermal printer usually has a housing, in which a movement is installed. The movement consists of a print head assembly, a base frame, a bracket, a rubber roller and a paper cutter. The print head assembly is installed on the base frame, and the paper cutter is installed on one side of the base frame and the print head assembly. The rubber roller is rotatably arranged on the bracket, and the bracket is detachably arranged on the base frame. A paper feed channel is formed between the print head assembly and the base frame, and the thermal printing paper passes through the paper feed channel. The printing motor drives the rubber roller to rotate through the transmission gear set. The print head assembly includes a print head and a thermal sheet. The thermal sheet is arranged opposite to the rubber roller, and the thermal sheet heats the thermal printing paper to form text and patterns. The paper cutter generally includes a movable knife and a fixed knife. The fixed knife is fixed, and the movable knife can cut paper relative to the fixed knife.

[0003] Most of the existing fixed knives are placed horizontally. When the movable knife approaches the fixed knife and interacts with it to achieve paper cutting, there is a problem of poor paper cutting effect.

[0004] In view of this, the inventor specially designed a fixed knife structure and a cutter assembly for a printer, and this case was thus generated. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a fixed knife structure of a printer, which achieves a better paper cutting effect by setting a first support seat to lift the middle part of the fixed knife, and at the same time, the first inclined surface set on the first support seat makes the fixed knife as a whole inclined, further improving the paper cutting effect; and overcomes the disadvantages of the current horizontal placement of the fixed knife.

[0006] According to the utility model, a fixed knife structure of a printer is provided, comprising:

[0007] A fixed knife seat, wherein a first support seat is arranged on the upper end surface of the fixed knife seat;

[0008] A fixed blade, wherein the fixed blade is arranged on a fixed blade seat, and a middle portion of the fixed blade is lifted up by the first supporting seat;

[0009] A first inclined surface is arranged on the upper end surface of the first support seat, and the height of the first inclined surface gradually decreases from the blade edge of the fixed blade toward the rear along the short side of the fixed blade.

[0010] The fixed knife structure of the utility model achieves a better paper cutting effect by providing a first support seat for lifting the middle part of the fixed knife. At the same time, the first inclined surface provided on the first support seat makes the fixed knife inclined as a whole. When the movable knife interacts with the fixed knife, the paper cutting effect is further improved.

[0011] In some embodiments of the present invention, a second support seat is arranged above the fixed knife seat and on both sides of the first support seat, and the height of the first support seat is higher than that of the second support seat.

[0012] In some embodiments of the present invention, the thickness of the fixed blade is 7-12 mm, preferably 9 mm.

[0013] In some embodiments of the present invention, a second inclined surface is disposed on the upper end surface of the second support seat, and the inclination angle is consistent with the first inclination angle.

[0014] In some embodiments of the present invention, a positioning column for positioning the fixed blade is further provided on the upper end surface of the second support seat, and a positioning hole cooperating with the positioning column is provided on the fixed blade.

[0015] In some embodiments of the present invention, the fixed blade is locked on the positioning seat by bolts.

[0016] In some embodiments of the present invention, a third support seat is further provided above the fixed knife seat and on both sides of the first support seat, and the third support seat is located between the first support seat and the second support seat.

[0017] In some embodiments of the present invention, the heights of the first support base, the third support base and the second support base decrease sequentially.

[0018] In some embodiments of the present invention, the height of the first support seat is consistent with the height of the third support group, and both are higher than the height of the second support seat, and a protrusion is provided on the upper end surface of the first support seat.

[0019] In some embodiments of the utility model, an internal threaded hole is provided on the third support seat, and a bolt is passed through the fixed blade to be locked with the internal threaded hole.

[0020] According to a cutter assembly provided by the utility model, a fixed knife structure is adopted, and the cutter assembly also includes a movable knife assembly matched with the fixed knife structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0022] in:

[0023] Figure 1 It is a structural schematic diagram of the fixed knife structure of the utility model;

[0024] Figure 2 It is an exploded view of the fixed knife structure of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the fixed knife seat of the utility model;

[0026] Figure 4 This utility model Figure 3 A partial enlarged view of

[0027] Figure 5 It is a side view of the fixed knife seat of the utility model;

[0028] Figure 6 This utility model Figure 5 A partial enlarged view of .

[0029] Description of labels:

[0030] 10. Fixed blade seat; 11. First support seat; 111. Protrusion; 12. Second support seat; 121. Positioning column; 13. Third support seat; 131. Internal threaded hole; 20. Fixed blade; 21. Positioning hole; 30. Bolt. DETAILED DESCRIPTION

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] See also Figures 1 to 6 , is a fixed knife structure of a printer as the best embodiment of the utility model, comprising a fixed knife seat 10 and a fixed blade 20, wherein a first support seat 11 is arranged on the upper end surface of the fixed knife seat 10; the fixed blade 20 is arranged on the fixed knife seat 10, and the middle part of the fixed blade 20 is lifted up by the first support seat 11; a first inclined surface is arranged on the upper end surface of the first support seat 11, and the height of the first inclined surface gradually decreases from the blade of the fixed blade 20 to the rear along the short side of the fixed blade 20; the thickness of the fixed blade 20 is 7-12mm, and 9mm is preferably adopted to facilitate lifting of the middle part. The fixed knife structure of the utility model realizes a better paper cutting effect by arranging the first support seat 11 to lift up the middle part of the fixed knife, and at the same time, the first inclined surface arranged on the first support seat 11 makes the fixed knife arranged as a whole inclined, and when the movable knife interacts with the fixed knife, the paper cutting effect is further improved.

[0033] Please refer to Figure 2 , 3A second support seat 12 is arranged above the fixed blade seat 10 and on both sides of the first support seat 11. The height of the first support seat 11 is higher than that of the second support seat 12. Therefore, when the fixed blade 20 is installed on the first support seat 11 and the second support seat 12, the middle part of the fixed blade 20 remains in a lifted state, that is, it has a certain arc upward. At the same time, a second inclined surface is arranged on the upper end surface of the second support seat 12, and the inclination angle is consistent with the first inclination angle to ensure that the fixed blade 20 installed on the fixed blade seat 10 remains inclined, that is, the cutting edge of the fixed blade 20 tends to be inclined upward.

[0034] Please refer to Figure 1 , 3 A positioning column 121 for positioning the fixed blade 20 is also provided on the upper end surface of the second support seat 12. A positioning hole 21 cooperating with the positioning column 121 is provided on the fixed blade 20. The positioning hole 21 cooperates with the positioning column 121, so that the fixed blade 20 is better positioned on the fixed blade seat 10. At the same time, one of the positioning holes 21 is circular, and the other positioning hole 21 is long (similar to a runway shape), and the long axis of the long strip is parallel to the long side of the fixed blade 20, so as to better install the fixed blade 20. Both positioning columns 121 can be cylindrical.

[0035] For details, please refer to Figure 3 The fixed blade 20 is locked on the positioning seat by bolts 30. A third support seat 13 is also provided above the fixed blade seat 10 and on both sides of the first support seat 11. The third support seat 13 is located between the first support seat 11 and the second support seat 12. When locked, an internal threaded hole 131 is provided on the third support seat 13, and the bolt 30 passes through the fixed blade 20 and is locked on the internal threaded hole 131.

[0036] In the present invention, the first support seat 11, the second support seat 12 and the third support seat 13 can be adopted in the following two ways:

[0037] First, the heights of the first support seat 11, the third support seat 13 and the second support seat 12 are successively reduced, which can ensure that the middle part of the fixed blade 20 is arched and has a certain smoothness;

[0038] Second, please refer to Figure 4 The height of the first support seat 11 is consistent with the height of the third support group, and both are higher than the second support seat 12. A protrusion 111 is set on the upper end surface of the first support seat 11. The protrusion 111 reduces the contact area between the first support seat 11 and the fixed blade 20, so that the middle part of the fixed blade 20 can be better arched.

[0039] The utility model also provides a cutter assembly which adopts a fixed knife structure. The cutter assembly also includes a movable knife assembly matched with the fixed knife structure.

[0040] To sum up, the fixed knife structure of the utility model achieves a better paper cutting effect by setting a first support seat to lift the middle part of the fixed knife. At the same time, the first inclined surface set on the first support seat makes the fixed knife tilted as a whole. When the movable knife interacts with the fixed knife, the paper cutting effect is further improved.

[0041] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A fixed blade structure of a printer, characterized in that: include: A fixed knife seat, wherein a first support seat is arranged on the upper end surface of the fixed knife seat; A fixed blade, wherein the fixed blade is arranged on a fixed blade seat, and a middle portion of the fixed blade is lifted up by the first supporting seat; A first inclined surface is arranged on the upper end surface of the first support seat, and the height of the first inclined surface gradually decreases from the blade edge of the fixed blade toward the rear along the short side of the fixed blade.

2. The fixed blade structure of the printer according to claim 1, characterized in that: A second support seat is arranged above the fixed knife seat and on both sides of the first support seat, and the height of the first support seat is higher than that of the second support seat.

3. The fixed blade structure of the printer according to claim 1, characterized in that: The thickness of the fixed blade is 7-12 mm.

4. The fixed blade structure of the printer according to claim 2, characterized in that: A positioning column for positioning the fixed blade is also disposed on the upper end surface of the second support seat, and a positioning hole cooperating with the positioning column is disposed on the fixed blade.

5. The fixed blade structure of a printer according to claim 1, characterized in that: The fixed blade is locked on the positioning seat by bolts.

6. The fixed blade structure of a printer according to claim 2, characterized in that: A third support seat is also arranged above the fixed knife seat and on both sides of the first support seat, and the third support seat is located between the first support seat and the second support seat.

7. The fixed blade structure of a printer according to claim 6, characterized in that: The heights of the first support base, the third support base and the second support base decrease sequentially.

8. The fixed blade structure of a printer according to claim 6, characterized in that: The height of the first support seat is consistent with the height of the third support group, and both are higher than the height of the second support seat. A protrusion is arranged on the upper end surface of the first support seat.

9. The fixed blade structure of a printer according to any one of claims 6 to 8, characterized in that: An internal threaded hole is arranged on the third support seat, and a bolt is passed through the fixed blade to be locked with the internal threaded hole.

10. A cutter assembly, characterized in that: Using the fixed knife structure described in any one of claims 1 to 9, the cutter assembly also includes a movable knife assembly that cooperates with the fixed knife structure.

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