Paper rubbing assembly

Abstract

The utility model relates to a paper twisting assembly. The paper twisting assembly comprises a bottom plate, a rotating element, a pressing element, a rotating frame, a sliding seat and a paper twisting block. The paper pickup block is located in the printer and abuts against the paper pickup wheel, and printing paper can penetrate through the space between the paper pickup block and the paper pickup wheel. The rotating frame is rotatably mounted on the bottom plate, the sliding seat is slidably mounted on the rotating frame and can rotate along with the rotating frame, and the paper rubbing block is fixedly mounted at one end of the sliding seat; the pressing element abuts against the other end of the sliding seat, and the pressing element can apply pressure to the sliding seat so as to adjust the pressure between the paper twisting block and the paper twisting wheel. The rotating element and the pressing element are both installed on the bottom plate, and the rotating element can drive the rotating frame to rotate so as to adjust the angle between the paper twisting block and the paper twisting wheel. The angle and pressure between the pickup block and the pickup wheel are adjusted through the pressing element and the rotating element, and normal operation of paper feeding is guaranteed.

Description

Technical Field

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

[0002] In a printing device, the pickup roller assembly is a key component, which is responsible for feeding paper from the paper box into the printer to ensure normal paper feeding and printing. When paper enters the printer from the paper box, it needs to pass between the pickup block and the pickup roller. After long-term use, the angle and strength between the pickup block and the pickup roller of the existing printing device are prone to change, and the angle and strength between the pickup block and the pickup roller in the existing printer cannot be adjusted, which makes it easy to feed multiple sheets at a time or fail to feed paper. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] The utility model provides a paper rubbing assembly, aiming to solve the paper feeding problem caused by the inability to adjust the angle and force between the paper rubbing block and the paper rubbing wheel in the prior art.

[0005] (II) Technical solution

[0006] In order to solve the above problems, the utility model provides a paper rubbing assembly, which comprises: a bottom plate, a rotating element, a pressing element, a rotating frame, a sliding seat and a paper rubbing block;

[0007] The paper pickup block is located in the printer, and the paper pickup block abuts against the paper pickup wheel, and the printing paper can pass between the paper pickup block and the paper pickup wheel;

[0008] The rotating frame is rotatably mounted on the bottom plate, the sliding seat is slidably mounted on the rotating frame, the sliding seat can rotate with the rotating frame, and the paper pickup block is fixedly mounted on one end of the sliding seat; the clamping element abuts against the other end of the sliding seat, and the clamping element can apply pressure to the sliding seat to adjust the pressure between the paper pickup block and the paper pickup wheel; the rotating element and the clamping element are both mounted on the bottom plate, and the rotating element can drive the rotating frame to rotate to adjust the angle between the paper pickup block and the paper pickup wheel.

[0009] Preferably, the rotating element comprises: a worm and a worm wheel;

[0010] The worm is rotatably arranged on the bottom plate, the worm wheel is meshed with the worm, the worm wheel is connected to the rotating frame, the worm can rotate to drive the worm wheel to move along the worm, and the worm wheel can drive the rotating frame to rotate.

[0011] Preferably, the rotating element further includes a first knob, which is rotatably arranged on one side of the base plate and connected to the worm, and the knob can drive the worm to rotate.

[0012] Preferably, the pressing element comprises: a pressing block, an elastic member and an adjusting member;

[0013] The pressing block is hinged on the bottom plate, and the hinge point between the pressing block and the bottom plate is located between the two ends of the pressing block;

[0014] One end of the clamping block abuts against the sliding seat, the other end of the clamping block is fixedly connected to one end of the elastic member, the other end of the elastic member is fixedly connected to the adjusting member, the adjusting member is mounted on the bottom plate, and the adjusting member can drive the elastic member to move.

[0015] Preferably, the adjusting member comprises: a second knob, an eccentric adjustment disk and a sliding plate;

[0016] The second knob and the eccentric adjustment disk are both rotatably mounted on the bottom plate, and the second knob and the first knob are located on the outer side of the bottom plate, and the eccentric adjustment disk is located on the inner side of the bottom plate, and the inner side and the outer side of the bottom plate are two opposite side surfaces of the bottom plate; the second knob can drive the eccentric adjustment disk to rotate, and the rotation center of the eccentric adjustment disk does not coincide with the geometric center of the eccentric adjustment disk;

[0017] The sliding plate is provided with a sliding column protruding therefrom, the sliding plate is slidably arranged on the bottom plate, the sliding column abuts against the side wall of the eccentric adjustment disk, and the eccentric adjustment disk can drive the sliding plate to slide when it rotates, and one end of the elastic member is connected to the sliding plate.

[0018] Preferably, the elastic member is a spring, hooks are provided at both ends of the spring, and hanging holes cooperating with the hooks are provided on the sliding plate and the pressing block.

[0019] Preferably, a first fixing plate is provided on the first side of the base plate, and a second fixing plate is provided on the second side of the base plate. Both the first fixing plate and the second fixing plate are provided with a first card slot and a second card slot for clamping in the printer. The first side and the second side of the base plate are two opposite sides of the base plate.

[0020] Preferably, a locking groove is formed between the first fixing plate and the first side surface of the bottom plate.

[0021] Preferably, a removal wrench is rotatably provided on the second side surface of the base plate, the removal wrench is located between the base plate and the second fixed plate, and the first end of the removal wrench is located at the bottom surface of the first slot on the first fixed plate; by rotating the second end of the removal wrench, the first end of the removal wrench can move from the bottom surface of the first slot to the top surface of the first slot.

[0022] (III) Beneficial effects

[0023] The utility model sets the paper rubbing block on the sliding seat, and the sliding seat is slidably set on the rotating frame, and the rotating element is used to drive the rotating frame to rotate and drive the paper rubbing block to rotate, thereby achieving the purpose of adjusting the angle between the paper rubbing block and the paper rubbing wheel. Then, the pressing element is used to apply pressure to the sliding seat to adjust the pressure between the paper rubbing block and the paper rubbing wheel, thereby achieving the purpose of adjusting the pressure between the paper rubbing block and the paper rubbing wheel. The angle and pressure between the paper rubbing block and the paper rubbing wheel are adjusted by the pressing element and the rotating element, thereby ensuring the normal paper feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of the paper rubbing assembly of the utility model;

[0025] Figure 2 This is a structural schematic diagram of the paper rubbing assembly of the utility model from another perspective;

[0026] Figure 3 It is a partial exploded view of the rotating element in the utility model;

[0027] Figure 4 It is a partial exploded view of the pressing element in the utility model;

[0028] Figure 5 It is a partial exploded view of the second fixing plate in the utility model;

[0029] Figure 6 It is a schematic diagram of the structure on the outer side of the bottom plate of the utility model.

[0030] [Description of Reference Numerals]

[0031] 1: bottom plate; 11: first fixing plate; 12: second fixing plate; 13: first slot; 14: second slot; 15: locking slot; 16: removal wrench;

[0032] 2: rotating element; 21: worm; 22: worm wheel; 23: first knob;

[0033] 3: pressing element; 31: pressing block; 32: elastic member; 33: adjusting member; 34: second knob; 35: eccentric adjustment plate; 36: sliding plate; 37: sliding column;

[0034] 4: Rotating frame;

[0035] 5: Sliding seat;

[0036] 6: Paper rubbing block. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] The utility model provides a paper rubbing assembly, which comprises: a bottom plate 1, a rotating element 2, a pressing element 3, a rotating frame 4, a sliding seat 5 and a paper rubbing block 6;

[0042] The paper pickup block 6 is located in the printer, and the paper pickup block 6 abuts against the paper pickup wheel, and the printing paper can pass between the paper pickup block 6 and the paper pickup wheel;

[0043] The rotating frame 4 is rotatably mounted on the bottom plate 1, and the sliding seat 5 is slidably mounted on the rotating frame 4. The sliding seat 5 can rotate with the rotating frame 4, and the paper picking block 6 is fixedly mounted on one end of the sliding seat 5; the clamping element 3 abuts against the other end of the sliding seat 5, and the clamping element 3 can apply pressure to the sliding seat 5 to adjust the pressure between the paper picking block 6 and the paper picking wheel; the rotating element 2 and the clamping element 3 are both mounted on the bottom plate 1, and the rotating element 2 can drive the rotating frame 4 to rotate to adjust the angle between the paper picking block 6 and the paper picking wheel.

[0044] In actual use, when paper enters the printer, it needs to pass between the paper pickup wheel and the paper pickup block 6. If the angle between the paper pickup block 6 and the paper pickup wheel becomes larger, it is easy to damage the paper; if the angle is small, it is easy for multiple sheets of paper to pass through the paper pickup wheel. And the greater the pressure between the paper pickup block 6 and the paper pickup wheel, the easier it is for the paper to not pass; the smaller the pressure between the paper pickup block 6 and the paper pickup wheel, the easier it is for multiple sheets of paper to pass through the paper pickup wheel. Therefore, the present application sets the paper pickup block 6 on the sliding seat 5, and the sliding seat 5 is slidingly set on the rotating frame 4, and the rotating element 2 is used to drive the rotating frame 4 to rotate and drive the paper pickup block 6 to rotate, thereby achieving the purpose of adjusting the angle between the paper pickup block 6 and the paper pickup wheel. Then, the pressing element 3 is used to apply pressure to the sliding seat 5 to adjust the pressure between the paper pickup block 6 and the paper pickup wheel, thereby achieving the purpose of adjusting the pressure between the paper pickup block 6 and the paper pickup wheel. The angle and pressure between the paper pickup block 6 and the paper pickup wheel are adjusted by the pressing element 3 and the rotating element 2, thereby ensuring the normal paper feeding.

[0045] On the one hand, the rotating element 2 includes: a worm 21 and a worm wheel 22. The worm 21 is rotatably arranged on the bottom plate 1, the worm wheel 22 is meshed with the worm 21, and the worm wheel 22 is connected to the rotating frame 4. The worm 21 can rotate to drive the worm wheel 22 to move along the worm 21, and the worm wheel 22 can drive the rotating frame 4 to rotate (in the present utility model, the worm wheel 22 is not a complete wheel, but a part of the wheel, but it is provided with teeth meshed with the worm 21). The rotation of the worm 21 drives the worm wheel 22 to move up and down, and the worm wheel 22 drives the rotating frame 4 to rotate, so as to achieve the purpose of rotating the paper rubbing block 6. In addition, the matching mode of the worm wheel 22 and the worm 21 can achieve self-locking. In a preferred embodiment, the axis of the worm 21 coincides with the Z axis, the worm 21 can rotate around the Z axis (vertical direction), and the worm wheel 22 can reciprocate along the Z axis. A relative displacement (such as ) can be generated between the worm wheel 22 and the rotating frame 4 in the X-axis direction (the X axis is perpendicular to the Z axis). Figure 3 As shown, the worm gear 22 is fixed to the rotating frame 4 by bolts, and a strip-shaped hole is provided on the worm gear 22. The width of the strip-shaped hole is greater than the diameter of the bolt, which enables the worm gear 22 to move along the width direction of the strip-shaped hole, thereby achieving relative displacement between the worm gear 22 and the rotating frame 4 in the X-axis direction), thereby ensuring that the worm gear 22 can drive one end of the rotating frame 4 to reciprocate in the Z-axis direction.

[0046] Furthermore, the rotating element 2 further includes a first knob 23, which is rotatably arranged on one side of the bottom plate 1, and the first knob is connected to the worm 21, and the knob can drive the worm 21 to rotate. By arranging the first knob 23 on the bottom plate 1, it is convenient for the user to adjust the rotation of the worm 21 through the first knob 23.

[0047] On the other hand, the clamping element 3 includes: a clamping block 31, an elastic member 32 and an adjusting member 33. The clamping block 31 is hinged on the bottom plate 1, and the hinge point between the clamping block 31 and the bottom plate 1 is located between the two ends of the clamping block 31. One end of the clamping block 31 abuts against the sliding seat 5, and the other end of the clamping block 31 is fixedly connected to one end of the elastic member 32, and the other end of the elastic member 32 is fixedly connected to the adjusting member 33. The adjusting member 33 is installed on the bottom plate 1, and the adjusting member 33 can drive the elastic member 32 to move. The elastic member 32 is driven to stretch or shrink by the adjusting member 33, and the elastic force in the elastic member 32 is converted into pressure on the paper pickup block 6 and the paper pickup wheel, which is convenient for adjustment.

[0048] Furthermore, the adjusting member 33 includes: a second knob 34, an eccentric adjustment disk 35 and a sliding plate 36. The second knob 34 and the eccentric adjustment disk 35 are both rotatably mounted on the base plate 1, and the second knob 34 and the first knob are located on the outer side of the base plate 1, and the eccentric adjustment disk 35 is located on the inner side of the base plate 1, and the inner side and the outer side of the base plate 1 are two opposite sides of the base plate 1; the second knob 34 can drive the eccentric adjustment disk 35 to rotate, and the rotation center of the eccentric adjustment disk 35 does not coincide with the geometric center of the eccentric adjustment disk 35. A sliding column 37 is protruding from the sliding plate 36, and the sliding plate 36 is slidably arranged on the base plate 1, and the sliding column 37 abuts against the side wall of the eccentric adjustment disk 35, and the eccentric adjustment disk 35 can drive the sliding plate 36 to slide when the eccentric adjustment disk 35 rotates, and one end of the elastic member 32 is connected to the sliding plate 36. The sliding plate 36 can only move in a straight line on the base plate 1. Since the rotation center of the eccentric adjustment disk 35 does not coincide with the geometric center of the eccentric adjustment disk 35, when the eccentric adjustment disk 35 rotates, the sliding column 37 can always fit with the side of the eccentric adjustment disk 35 under the action of the elastic member 32, thereby making the sliding plate 36 reciprocate on the base plate 1, thereby realizing the adjustment of the elastic force in the elastic member 32.

[0049] Preferably, the elastic member 32 is a spring, hooks are arranged at both ends of the spring, and hanging holes cooperating with the hooks are arranged on the sliding plate 36 and the pressing block 31. The hanging holes are arranged to facilitate the installation of the spring.

[0050] Finally, a first fixing plate 11 is provided on the first side of the bottom plate 1, and a second fixing plate 12 is provided on the second side of the bottom plate 1. The first fixing plate 11 and the second fixing plate 12 are both provided with a first card slot 13 and a second card slot 14 for clamping in the printer. The first side and the second side of the bottom plate 1 are two opposite sides of the bottom plate 1. The bottom plate 1 in the paper pickup assembly of the present application is clamped in the printer through the first card slot 13 and the second card slot 14. In a preferred embodiment, a fixing pin for clamping in the first card slot 13 and the second card slot 14 is provided in the printer.

[0051] A locking groove 15 is formed between the first fixing plate 11 and the first side surface of the bottom plate 1. The locking groove 15 is provided to facilitate positioning of the bottom plate 1 in the printer.

[0052] A dismantling wrench 16 is rotatably provided on the second side surface of the bottom plate 1. The dismantling wrench 16 is located between the bottom plate 1 and the second fixed plate 12. The first end of the dismantling wrench 16 is located at the bottom surface of the first card slot 13 on the first fixed plate 11. By rotating the second end of the dismantling wrench 16, the first end of the dismantling wrench 16 can move from the bottom surface of the first card slot 13 to the top surface of the first card slot 13. When the paper pickup assembly is installed in the printer, rotating the dismantling wrench 16 can push the fixing pin in the first card slot 13 on the first fixed plate 11 out of the first card slot 13, thereby realizing the rapid dismantling of the bottom plate 1 from the printer, and realizing quick dismantling.

[0053] 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 paper rubbing assembly, characterized in that: The paper rubbing assembly comprises: a bottom plate (1), a rotating element (2), a pressing element (3), a rotating frame (4), a sliding seat (5) and a paper rubbing block (6); The paper rubbing block (6) is located in the printer, and the paper rubbing block (6) abuts against the paper rubbing wheel, so that the printing paper can pass between the paper rubbing block (6) and the paper rubbing wheel; The rotating frame (4) is rotatably mounted on the bottom plate (1); the sliding seat (5) is slidably mounted on the rotating frame (4); the sliding seat (5) can rotate along with the rotating frame (4); the paper picking block (6) is fixedly mounted on one end of the sliding seat (5); the pressing element (3) is in contact with the other end of the sliding seat (5); the pressing element (3) can apply pressure to the sliding seat (5) to thereby adjust the pressure between the paper picking block (6) and the paper picking wheel; the rotating element (2) and the pressing element (3) are both mounted on the bottom plate (1); the rotating element (2) can drive the rotating frame (4) to rotate to adjust the angle between the paper picking block (6) and the paper picking wheel.

2. The paper pickup assembly according to claim 1, characterized in that: The rotating element (2) comprises: a worm (21) and a worm wheel (22); The worm (21) is rotatably arranged on the base plate (1); the worm wheel (22) is meshed with the worm (21); the worm wheel (22) is connected to the rotating frame (4); the worm (21) is rotatable to drive the worm wheel (22) to move along the worm (21); and the worm wheel (22) is capable of driving the rotating frame (4) to rotate.

3. The paper pickup assembly according to claim 2, characterized in that: The rotating element (2) further comprises a first knob (23), the first knob (23) being rotatably arranged on one side of the base plate (1), and the first knob (23) being connected to the worm (21), and the first knob (23) being capable of driving the worm (21) to rotate.

4. The paper pickup assembly according to claim 3, characterized in that: The pressing element (3) comprises: a pressing block (31), an elastic member (32) and an adjusting member (33); The pressing block (31) is hinged on the bottom plate (1), and the hinge point between the pressing block (31) and the bottom plate (1) is located between the two ends of the pressing block (31); One end of the pressing block (31) is in contact with the sliding seat (5), the other end of the pressing block (31) is fixedly connected to one end of the elastic member (32), the other end of the elastic member (32) is fixedly connected to the adjusting member (33), the adjusting member (33) is mounted on the base plate (1), and the adjusting member (33) can drive the elastic member (32) to move.

5. The paper pickup assembly according to claim 4, characterized in that: The adjusting member (33) comprises: a second knob (34), an eccentric adjusting disk (35) and a sliding plate (36); The second knob (34) and the eccentric adjustment disk (35) are both rotatably mounted on the base plate (1), and the second knob (34) and the first knob (23) are located on the outer side of the base plate (1), and the eccentric adjustment disk (35) is located on the inner side of the base plate (1), and the inner side and the outer side of the base plate (1) are two opposite surfaces on the base plate (1); the second knob (34) can drive the eccentric adjustment disk (35) to rotate, and the rotation center of the eccentric adjustment disk (35) does not coincide with the geometric center of the eccentric adjustment disk (35); A sliding column (37) is protruding from the sliding plate (36). The sliding plate (36) is slidably arranged on the bottom plate (1). The sliding column (37) abuts against the side wall of the eccentric adjustment disk (35). When the eccentric adjustment disk (35) rotates, it can drive the sliding plate (36) to slide. One end of the elastic member (32) is connected to the sliding plate (36).

6. The paper pickup assembly according to claim 5, characterized in that: The elastic member (32) is a spring, and hooks are arranged at both ends of the spring. The sliding plate (36) and the pressing block (31) are both provided with hanging holes that cooperate with the hooks.

7. The paper pickup assembly according to any one of claims 1 to 6, characterized in that: A first fixing plate (11) is arranged on the first side of the base plate (1), and a second fixing plate (12) is arranged on the second side of the base plate (1); the first fixing plate (11) and the second fixing plate (12) are both provided with a first card slot (13) and a second card slot (14) for clamping in the printer; the first side and the second side of the base plate (1) are two opposite side surfaces of the base plate (1).

8. The paper pickup assembly according to claim 7, characterized in that: A locking groove (15) is formed between the first fixing plate (11) and the first side surface of the bottom plate (1).

9. The paper pickup assembly according to claim 8, characterized in that: A dismantling wrench (16) is rotatably provided on the second side surface of the base plate (1); the dismantling wrench (16) is located between the base plate (1) and the second fixed plate (12); the first end of the dismantling wrench (16) is located at the bottom surface of the first clamping groove (13) on the first fixed plate (11); by rotating the second end of the dismantling wrench (16), the first end of the dismantling wrench (16) can move from the bottom surface of the first clamping groove (13) to the top surface of the first clamping groove (13).

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