Cutter assembly

Abstract

The utility model relates to a cut-off knife assembly which comprises a guide seat, a knife holder plate, a cut-off knife sliding block, a hob and an elastic element. The guide seat and the tool apron plate are arranged in parallel, a gap exists between the guide seat and the tool apron plate in the first direction, and paper can penetrate through the gap. The cut-off knife sliding block is arranged on the guide seat in a sliding manner, and the cut-off knife sliding block can do reciprocating motion on the guide seat in the first direction; the hob is rotationally arranged in the cutter sliding block, the elastic element is arranged in the cutter sliding block, one end of the elastic element abuts against the cutter sliding block, the other end of the elastic element abuts against one side of the hob, the other side of the hob abuts against the cutter holder plate, and the hob can cut paper penetrating through the gap. According to the utility model, the elastic element is arranged in the cutter sliding block, and the hob is tightly pressed on the cutter holder plate by utilizing the elastic force of the elastic element, so that the hob and the cutter holder plate are not loosened after the cutter is frequently used for a long time, the cutting effect is improved, and the smooth cutting of the hob is ensured.

Description

Technical Field

[0001] The utility model relates to the field of inkjet printing, in particular to a cutter assembly. Background Art

[0002] The cutter assembly is generally provided with a rotatable cutter, which reciprocates on a bracket to cut the paper. When the cutter cuts the paper, one side of the cutter needs to be in close contact with the bracket to cut the paper. When the printer is used frequently, the cutter and the bracket are prone to looseness, resulting in incomplete paper cutting or the size of the cut paper not meeting expectations. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model provides a cutter assembly, aiming to solve the problem in the prior art that the cutter is easy to become loose after long-term and frequent use of the printer.

[0005] (II) Technical solution

[0006] In order to solve the above problems, the utility model provides a cutter assembly, which includes: a guide seat, a cutter seat plate, a cutter slider, a rolling cutter and an elastic element;

[0007] The guide seat and the knife seat plate are arranged in parallel, and there is a gap between the guide seat and the knife seat plate in a first direction, and the paper can pass through the gap;

[0008] The cutter slider is slidably arranged on the guide seat, and the cutter slider can reciprocate along the first direction on the guide seat; the roller is rotatably arranged in the cutter slider, and the elastic element is arranged in the cutter slider, one end of the elastic element abuts against the cutter slider, the other end of the elastic element abuts against one side of the roller, and the other side of the roller abuts against the cutter seat plate, and the roller can cut the paper passing through the gap.

[0009] Preferably, the cutter assembly further comprises a pair of connecting plates;

[0010] The guide seat and the tool seat plate are both located between the two connecting plates. The connecting plate is used to connect the guide seat and the tool seat plate, and the connecting plate is installed at the ends of the guide seat and the tool seat plate.

[0011] Preferably, the cutter assembly further comprises a power element;

[0012] The power element includes a driving motor, a belt and a moving wheel, the connecting plates are rotatably provided with the moving wheels, the belt is sleeved on the two moving wheels, and the cutter slider is connected to the belt;

[0013] The driving motor is mounted on one of the connecting plates, and the output shaft of the driving motor is connected to the corresponding moving wheel on the connecting plate; the driving motor can drive the corresponding moving wheel to rotate, so that the belt drives the cutting knife slider to slide.

[0014] Preferably, the knife seat plate is provided with a long knife strip, the long knife strip is arranged along the gap, and the hob abuts against the long knife strip.

[0015] Preferably, the cutter slider comprises a sliding seat and a fixed seat that are butt-jointed with each other;

[0016] A guide rail is arranged on the guide seat along a first direction, the sliding seat is mounted on the guide rail, and the sliding seat can slide along the guide rail;

[0017] The roller cutter is arranged between the sliding seat and the fixed seat, one end of the elastic element abuts against the roller cutter, and the other end of the elastic element abuts against the fixed seat.

[0018] Preferably, a roller is provided on the sliding seat, the roller is rotatably provided on the roller, and the elastic element is sleeved on the roller.

[0019] Preferably, the elastic element is a spring.

[0020] Preferably, a plurality of buckles are arranged in an array on the guide seat.

[0021] (III) Beneficial effects

[0022] The utility model arranges an elastic element in the cutter slider and uses the elastic force of the elastic element to press the roller cutter onto the cutter seat plate. After long-term and frequent use, the roller cutter will not become loose from the cutter seat plate, thereby improving the cutting effect and ensuring smooth cutting with the roller cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is an exploded view of the cutter assembly of the utility model;

[0024] Figure 2 This is a schematic diagram of the overall structure of the cutting knife assembly of the utility model;

[0025] Figure 3 for Figure 2 Enlarged view at A.

[0026] [Description of Reference Numerals]

[0027] 1: guide seat; 11: buckle; 2: knife seat plate; 21: long knife strip; 3: cutter slider; 31: sliding seat; 32: fixed seat; 33: fixed seat; 4: rolling knife; 5: elastic element; 6: gap; 7: connecting plate; 8: power element; 81: driving motor; 82: belt; 83: driving wheel. DETAILED DESCRIPTION

[0028] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0029] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0030] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The utility model provides a cutter assembly, which includes: a guide seat 1, a cutter seat plate 2, a cutter slide block 3, a rolling cutter 4 and an elastic element 5. The guide seat 1 and the cutter seat plate 2 are arranged in parallel, and there is a gap 6 between the guide seat 1 and the cutter seat plate 2 in a first direction, and paper can pass through the gap 6. The cutter assembly is located in a printer, and when the printer is printing, the paper will pass through the gap 6, and when the size of the paper passing through the gap 6 is the expected size, the rolling cutter 4 will cut the paper.

[0033] The cutter slider 3 is slidably arranged on the guide seat 1, and the cutter slider 3 can reciprocate along the first direction on the guide seat 1; the roller cutter 4 is rotatably arranged in the cutter slider 3, and the elastic element 5 is arranged in the cutter slider 3, one end of the elastic element 5 abuts against the cutter slider 3, and the other end of the elastic element 5 abuts against one side of the roller cutter 4, and the other side of the roller cutter 4 abuts against the cutter seat plate 2, and the roller cutter 4 can cut the paper passing through the gap 6. In daily use, the elastic element 5 is in a compressed state. Since the roller cutter 4 abuts against the elastic element 5, there is a preload force between the roller cutter 4 and the cutter seat plate 2, and the preload force at this time is equal to the elastic force of the elastic element 5. In the scheme of the utility model, when the paper passes through the gap 6, the cutter slider 3 drives the roller cutter 4 to reciprocate to achieve the cutting of the paper, and the roller cutter 4 can keep in contact with the cutter seat plate 2 under the action of the elastic element 5, and the roller cutter 4 will not be loosened between the cutter seat plate 2, thereby ensuring the cutting quality of the paper.

[0034] Further, the cutter assembly also includes a pair of connecting plates 7. The guide seat 1 and the knife seat plate 2 are both located between the two connecting plates 7, and the connecting plate 7 is used to connect the guide seat 1 and the knife seat plate 2, and the connecting plate 7 is installed at the ends of the guide seat 1 and the knife seat plate 2.

[0035] The cutter assembly also includes a power element 8. The power element 8 includes a driving motor 81, a belt 82 and a moving wheel 83. The connecting plate 7 is provided with moving wheels 83 for rotation. The belt 82 is sleeved on two moving wheels 83. The cutter slider 3 is connected to the belt 82. The driving motor 81 is installed on a connecting plate 7. The output shaft of the driving motor 81 is connected to the corresponding moving wheel 83 on the connecting plate 7. The driving motor 81 can drive the corresponding moving wheel 83 to rotate, so that the belt 82 drives the cutter slider 3 to slide.

[0036] In the above scheme, the drive motor 81 and the belt 82 are used to drive the cutter slider 3 to move, so that the roller cutter 4 can quickly cut the paper. In a more preferred embodiment, an encoder for detecting the motor speed can be set in the drive motor 81. By controlling the rotation of the drive motor 81 through the encoder, the moving distance of the rolling can be controlled, thereby realizing fast cutting of papers of different sizes. The high speed of the drive motor 81 can realize fast cutting, and the encoder can control the stop of the cutter head so as not to cause collision. In addition, photoelectric sensors for detecting the position of the cutter slider 3 can be set at both ends of the guide seat 1. The photoelectric sensors can limit the cutter slider 3, thereby ensuring the safe use of the roller cutter 4.

[0037] Furthermore, the knife seat plate 2 is provided with a long knife strip 21, which is provided along the gap 6, and the hob 4 abuts against the long knife strip 21. In this solution, the long knife strip 21 is provided on the knife seat plate 2, and the long knife strip 21 is located between the knife seat plate 2 and the hob 4, that is, the hob 4 does not directly contact the knife seat plate 2, but contacts the long knife strip 21. The long knife strip 21 can be made of wear-resistant material, thereby improving the service life of the knife seat plate 2.

[0038] In addition, the cutter slider 3 includes a sliding seat 31 and a fixed seat 32 that are butted against each other. A guide rail is arranged on the guide seat 1 along the first direction, and the sliding seat 31 is mounted on the guide rail, and the sliding seat 31 can slide along the guide rail. The roller 4 is arranged between the sliding seat 31 and the fixed seat 32, one end of the elastic element 5 abuts against the roller 4, and the other end of the elastic element 5 abuts against the fixed seat 32. A roller 33 is arranged on the sliding seat 31, and the roller 4 is rotatably arranged on the roller 33, and the elastic element 5 is sleeved on the roller 33. The elastic element 5 is a spring. The spring can press the roller 4 against the long knife strip 21, ensuring smooth cutting.

[0039] Finally, a plurality of buckles 11 are arranged in an array on the guide seat 1. The guide seat 1 is detachably installed in the printer through the buckles 11, and the buckles 11 can be quickly installed to realize the installation of the cutter assembly.

[0040] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A cutting knife assembly, characterized in that: The cutter assembly comprises: a guide seat (1), a cutter seat plate (2), a cutter slide block (3), a rolling cutter (4) and an elastic element (5); The guide seat (1) and the knife seat plate (2) are arranged in parallel, and a gap (6) exists between the guide seat (1) and the knife seat plate (2) in a first direction, and paper can pass through the gap (6); The cutter slider (3) is slidably arranged on the guide seat (1), and the cutter slider (3) can make reciprocating motion along the first direction on the guide seat (1); the rolling cutter (4) is rotatably arranged in the cutter slider (3), the elastic element (5) is arranged in the cutter slider (3), one end of the elastic element (5) abuts against the cutter slider (3), the other end of the elastic element (5) abuts against one side of the rolling cutter (4), and the other side of the rolling cutter (4) abuts against the cutter seat plate (2); the rolling cutter (4) can cut the paper passing through the gap (6).

2. The cutter assembly according to claim 1, characterized in that: The cutting blade assembly further comprises a pair of connecting plates (7); The guide seat (1) and the knife seat plate (2) are both located between the two connecting plates (7), the connecting plate (7) is used to connect the guide seat (1) and the knife seat plate (2), and the connecting plate (7) is installed at the ends of the guide seat (1) and the knife seat plate (2).

3. The cutter assembly according to claim 2, characterized in that: The cutting blade assembly further comprises a power element (8); The power element (8) comprises a driving motor (81), a belt (82) and a moving wheel (83); the moving wheels (83) are rotatably arranged on the connecting plate (7); the belt (82) is sleeved on two of the moving wheels (83); and the cutting slider (3) is connected to the belt (82); The driving motor (81) is mounted on one of the connecting plates (7), and the output shaft of the driving motor (81) is connected to the corresponding moving wheel (83) on the connecting plate (7); the driving motor (81) can drive the corresponding moving wheel (83) to rotate, so that the belt (82) drives the cutting slider (3) to slide.

4. The cutter assembly according to any one of claims 1 to 3, characterized in that: The knife seat plate (2) is provided with a long knife strip (21), the long knife strip (21) is arranged along the gap (6), and the hob (4) abuts against the long knife strip (21).

5. The cutter assembly according to any one of claims 1 to 3, characterized in that: The cutter slider (3) comprises a sliding seat (31) and a fixed seat (32) which are butt-jointed with each other; A guide rail is arranged on the guide seat (1) along a first direction, the sliding seat (31) is mounted on the guide rail, and the sliding seat (31) is capable of sliding along the guide rail; The rolling cutter (4) is arranged between the sliding seat (31) and the fixed seat (32), one end of the elastic element (5) abuts against the rolling cutter (4), and the other end of the elastic element (5) abuts against the fixed seat (32).

6. The cutter assembly according to claim 5, characterized in that: A roller (33) is arranged on the sliding seat (31), the roller cutter (4) is rotatably arranged on the roller (33), and the roller cutter (4) can slide along the axial direction of the roller (33), and the elastic element (5) is sleeved on the roller (33).

7. The cutter assembly according to claim 6, wherein: The elastic element (5) is a spring.

8. The cutter assembly according to any one of claims 1 to 3, characterized in that: A plurality of buckles (11) are arranged in an array on the guide seat (1).

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