Paper collecting and clamping assembly in printer

Abstract

The utility model relates to a paper collecting and clamping assembly in a printer. The paper collecting and clamping assembly comprises a bottom plate, paired clamping support plates and a butt joint. The clamping supporting plates are arranged on the bottom plate in a sliding mode, and butt joints are rotationally arranged on the first side faces of the clamping supporting plates. The side face of the butt joint comprises a guide face and a mounting face which are connected with each other, the guide face has a certain taper, the butt joint is provided with a plurality of clamping spaces which are concaved inwards on the mounting face, clamping jaws and elastic pieces are arranged in the clamping spaces, the first ends of the clamping jaws are hinged in the clamping spaces, one ends of the elastic pieces abut against the second ends of the clamping jaws, and the other ends of the elastic pieces abut against the second ends of the clamping jaws. The other end of the elastic element abuts against the butt joint, and the second end of the clamping jaw can stretch out of the clamping space under the action of the elastic force of the elastic element. When the paper tube slides to the installation face along the guide face, the second end of the clamping jaw abuts against the inner wall of the through hole in the paper tube under the action of elastic force, the friction force between the butt joint and the paper tube is increased, and relative sliding between the paper tube and the butt joint is avoided.

Description

Technical Field

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

[0002] In the field of existing continuous printer technology, as one of the important consumables, the stable and smooth paper feeding and paper retreating mechanisms of the paper tube are directly related to the printing efficiency of the printer and the user experience. When a traditional continuous printer is working, the paper tube may accidentally slide between the brackets in the printer due to inertia or external forces, which may cause paper jams and printing interruptions. Summary of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] The utility model provides a paper receiving and clamping assembly in a printer, aiming to solve the problem that the paper tube is prone to slide between the brackets in the printer in the prior art during the operation of the printer.

[0005] (II) Technical Solutions

[0006] To solve the above problems, the utility model provides a paper receiving and clamping assembly in a printer, and the paper receiving and clamping assembly in the printer includes: a bottom plate, a pair of clamping support plates and a docking head;

[0007] The clamping support plates are slidably arranged on the bottom plate, and the docking heads are rotatably arranged on the first side surfaces of the clamping support plates. The docking heads on the two clamping support plates are arranged oppositely, and the two docking heads are used for installing the paper tube;

[0008] The side surface of the docking head includes a guiding surface and an installation surface which are connected to each other. The guiding surface has a certain taper. A plurality of clamping spaces are recessed inward on the installation surface of the docking head. Claw and elastic member are arranged in the clamping space. The first end of the claw is hinged in the clamping space. One end of the elastic member abuts against the second end of the claw, and the other end of the elastic member abuts against the docking head. The second end of the claw can extend out of the clamping space under the action of the elastic force of the elastic element.

[0009] Preferably, a plurality of teeth are protruded at the second end of the claw, and an inclined surface is arranged at the second end of the claw, and the inclined surface is connected to the top end of the claw.

[0010] Preferably, the paper receiving and clamping assembly further includes a first driving component, and the first driving component includes: a transmission guide rail, a first synchronous pulley, a second synchronous pulley and a synchronous belt;

[0011] The transmission guide rail is rotatably installed on the bottom plate. On the second side surfaces of the clamping support plates, a first synchronous pulley and a second synchronous pulley are rotatably arranged respectively. The first synchronous pulley and the second synchronous pulley are connected by the synchronous belt.

[0012] The first synchronous pulley is sleeved on the transmission guide rail. The first synchronous pulley can slide along the transmission guide rail, and the transmission guide rail can drive the first synchronous pulley to rotate.

[0013] The second synchronous pulley is connected with the docking head through a transmission shaft, and the second synchronous pulley can drive the docking head to rotate.

[0014] Preferably, the first driving component further includes a tensioning bracket and a tensioning pulley.

[0015] The tensioning bracket is hinged on the second side surface of the clamping support plate. At one end of the tensioning bracket, the tensioning pulley is rotatably arranged. The side surface of the tensioning pulley can abut against the synchronous belt. At the other end of the tensioning bracket, an arc-shaped fixing groove is arranged. The hinge point of the tensioning bracket and the clamping support plate is located between the two ends of the tensioning bracket.

[0016] Preferably, the first driving component further includes a first driving motor installed on the bottom plate, and the first driving motor can drive the transmission guide rail to rotate.

[0017] Preferably, the paper receiving and clamping assembly further includes a second driving component. The second driving component includes a guiding slider, a guiding slide rail and a transmission lead screw.

[0018] The guiding slide rail is fixedly installed on the bottom plate. The guiding slider is slidably installed on the guiding slide rail. The transmission lead screw is rotatably installed on the bottom plate. On the transmission lead screw, a first driving section and a second driving section are arranged. On the first driving section, a left-handed thread is arranged. On the second driving section, a right-handed thread is arranged.

[0019] On both the first driving section and the second driving section of the transmission lead screw, the guiding sliders are sleeved. On the guiding sliders, corresponding internal thread holes are arranged. The transmission lead screw can drive the two guiding sliders to approach each other or move away from each other. The clamping support plates are fixedly arranged on the guiding sliders.

[0020] Preferably, the second driving component further includes a second driving motor arranged on the bottom plate, and the second driving motor can drive the transmission lead screw to rotate.

[0021] Preferably, the docking head includes a baffle and a tapered head. The baffle is rotatably mounted on the clamping support plate, the tapered head is fixedly mounted on the baffle, the guiding surface is arranged on the side surface of the tapered head, and the mounting surface is arranged on the baffle.

[0022] Preferably, the baffle includes a mounting post and a blocking post which are coaxially arranged and connected to each other. The diameter of the mounting post is smaller than that of the blocking post, and the side surface of the mounting post is the mounting surface.

[0023] (III) Beneficial effects

[0024] In the present utility model, a clamping space is arranged in the docking head, and a claw is arranged in the clamping space. When the paper tube is slid along the guiding surface to the mounting surface, the second end of the claw abuts against the inner wall of the through hole on the paper tube under the action of elastic force, increasing the friction between the docking head and the paper tube, avoiding the relative sliding between the paper tube and the docking head, and ensuring the normal progress of printing. Description of the drawings

[0025] Figure 1 is an exploded view of the paper receiving and clamping assembly of the present utility model;

[0026] Figure 2 is Figure 1 an enlarged view at A;

[0027] Figure 3 is an exploded view of the paper receiving and clamping assembly of the present utility model from another perspective;

[0028] Figure 4 is Figure 3 an enlarged view at B;

[0029] Figure 5 is a schematic diagram of the overall structure of the paper receiving and clamping assembly of the present utility model.

[0030]

Description of the reference numerals

[0031] 1: bottom plate; 2: clamping support plate; 3: docking head; 31: guiding surface; 32: mounting surface; 33: clamping space; 331: claw; 332: elastic member; 333: tooth; 334: inclined surface; 34: baffle; 341: mounting post; 342: blocking post; 35: tapered head; 4: first driving member; 41: transmission guide rail; 42: first synchronous pulley; 43: second synchronous pulley; 44: synchronous belt; 45: tensioning bracket; 451: arc fixing groove; 46: tensioning pulley; 47: first driving motor; 5: second driving member; 51: guiding slider; 52: guiding slide rail; 53: transmission lead screw; 54: second driving motor. Specific embodiments

[0032] To better explain the present utility model for easier understanding, the following will describe the present utility model in detail with reference to the accompanying drawings and through specific embodiments.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative positional relationship, movement conditions, etc. between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0034] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0035] In the present utility model, unless otherwise clearly specified and defined, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0036] The present utility model provides a paper receiving and clamping assembly inside a printer. The paper receiving and clamping assembly inside the printer includes: a bottom plate 1, a pair of clamping support plates 2, and a docking head 3. The clamping support plates 2 are slidably arranged on the bottom plate 1. Docking heads 3 are rotatably arranged on the first side surfaces of the clamping support plates 2. The docking heads 3 on the two clamping support plates 2 are arranged opposite to each other. The two docking heads 3 are used for installing a paper tube. Generally, a through hole is arranged along the axis of the paper tube. The two docking heads 3 are inserted into both ends of the through hole to realize the installation of the paper tube.

[0037] The side surface of the docking head 3 includes a guiding surface 31 and a mounting surface 32 which are connected to each other. The guiding surface 31 has a certain taper. The docking head 3 is recessed inward on the mounting surface 32 and is provided with a plurality of clamping spaces 33. A claw 331 and an elastic member 332 are arranged in the clamping space 33. The first end of the claw 331 is hinged in the clamping space 33. One end of the elastic member 332 abuts against the second end of the claw 331, and the other end of the elastic member 332 abuts against the docking head 3. The second end of the claw 331 can protrude out of the clamping space 33 under the action of the elastic force of the elastic element. When specifically installing the paper tube, the inner wall of the through hole in the paper tube can slide along the guiding surface 31 to the mounting surface 32. At this time, the inner wall of the through hole abuts against the second end of the claw 331. At this time, the second end of the claw 331 can abut against the inner wall of the through hole on the paper tube, avoiding the relative sliding between the paper tube and the docking head 3 and ensuring the normal progress of printing. In a preferred embodiment, the elastic member 332 can be an elastic sleeve or a spring.

[0038] Furthermore, a plurality of teeth 333 protrude from the second end of the claw 331. The second end of the claw 331 is provided with an inclined surface 334, and the inclined surface 334 is connected to the top end of the claw 331. In the above solution, a plurality of teeth 333 for abutting against the inner wall of the through hole on the paper tube are provided at the second end of the claw 331, which can increase the friction between the claw 331 and the paper tube and reduce the possibility of sliding between the paper tube and the docking head 3. In addition, an inclined surface 334 is provided at the second end of the claw 331, and the inclined surface 334 at the second end of the claw 331 is connected to the top end of the claw 331, so that the inner wall of the through hole on the paper tube can slide along the guiding surface 31 to the inclined surface 334 at the second end of the claw 331 and finally move to the top end of the teeth 333, realizing the abutment between the claw 331 and the through hole in the paper tube. That is, the inclined surface 334 provided at the second end of the claw 331 is used in cooperation with the guiding surface 31 with a taper, which is convenient for installing the paper tube on the docking head 3.

[0039] Even further, the paper collecting and clamping assembly further includes a first driving member 4. The first driving member 4 includes: a transmission guide rail 41, a first synchronous pulley 42, a second synchronous pulley 43 and a synchronous belt 44. The transmission guide rail 41 is rotatably installed on the bottom plate 1. The first synchronous pulley 42 and the second synchronous pulley 43 are rotatably arranged on the second side surface of the clamping support plate 2. The first synchronous pulley 42 and the second synchronous pulley 43 are connected by the synchronous belt 44. The first synchronous pulley 42 is sleeved on the transmission guide rail 41, and the first synchronous pulley 42 can slide along the transmission guide rail 41. The transmission guide rail 41 can drive the first synchronous pulley 42 to rotate. The second synchronous pulley 43 is connected to the docking head 3 through a transmission shaft, and the second synchronous pulley 43 can drive the docking head 3 to rotate.

[0040] In this solution, the second synchronous pulley 43 drives the docking head 3 to rotate, thereby driving the paper tube to rotate, realizing paper feeding and paper discharging in the printer, and ensuring the normal progress of printing. In addition, the first synchronous pulley 42 can only slide on the transmission guide rail 41 and cannot rotate relative to the transmission guide rail 41. The transmission guide rail 41 is used to drive the two first synchronous pulleys 42 to rotate synchronously, so that the docking heads 3 at both ends of the paper tube can drive the paper tube to rotate synchronously. In a preferred implementation, the first driving component 4 further includes a first driving motor 47 installed on the bottom plate 1, and the first driving motor 47 can drive the transmission guide rail 41 to rotate. The first driving motor 47 is used to drive the transmission guide rail 41 to rotate.

[0041] The first driving component 4 further includes a tensioning bracket 45 and a tensioning pulley 46. The tensioning bracket 45 is hinged on the second side surface of the clamping support plate 2. One end of the tensioning bracket 45 is rotatably provided with a tensioning pulley 46. The side surface of the tensioning pulley 46 can abut against the synchronous belt 44. An arc-shaped fixing groove 451 is provided at the other end of the tensioning bracket 45. The hinge point between the tensioning bracket 45 and the clamping support plate 2 is located between the two ends of the tensioning bracket 45. By rotatably arranging the tensioning pulley 46 on the tensioning bracket 45 and hinging the tensioning bracket 45 on the clamping support plate 2, the tensioning bracket 45 can drive the tensioning pulley 46 to swing, and the tensioning pulley 46 can make the synchronous belt 44 more compact on the first synchronous pulley 42 and the second synchronous pulley 43, so that the first synchronous pulley 42 and the second synchronous pulley 43 can rotate synchronously under the drive of the synchronous belt 44.

[0042] On the other hand, the paper receiving and clamping assembly further includes a second driving component 5. The second driving component 5 includes a guiding slider 51, a guiding slide rail 52 and a transmission lead screw 53. The guiding slide rail 52 is fixedly installed on the bottom plate 1. The guiding slider 51 is slidably installed on the guiding slide rail 52. The transmission lead screw 53 is rotatably installed on the bottom plate 1. The transmission lead screw 53 is provided with a first driving section and a second driving section. The first driving section is provided with a left-handed thread, and the second driving section is provided with a right-handed thread. The first driving section and the second driving section of the transmission lead screw 53 are both sleeved with guiding sliders 51. The guiding sliders 51 are provided with corresponding internal threaded holes. The transmission lead screw 53 can drive the two guiding sliders 51 to approach or move away from each other; clamping support plates 2 are fixedly arranged on the guiding sliders 51. By providing two threads with opposite helix directions on the transmission lead screw 53, that is, a left-handed thread is provided on the first driving section and a right-handed thread is provided on the second driving section, the guiding sliders 51 on the first driving section and the second driving section can move in opposite directions, so as to drive the two clamping support plates 2 to approach or move away from each other.

[0043] In a preferred implementation, the second driving component 5 further includes a second driving motor 54 installed on the bottom plate 1, and the second driving motor 54 can drive the transmission lead screw 53 to rotate.

[0044] Finally, the adapter 3 includes a baffle 34 and a tapered head 35. The baffle 34 is rotatably mounted on the clamping support plate 2, and the tapered head 35 is fixedly mounted on the baffle 34. The guiding surface 31 is provided on the side surface of the tapered head 35, and the mounting surface 32 is provided on the baffle 34. The baffle 34 includes a mounting post 341 and a retaining post 342 that are coaxially arranged and connected to each other. The diameter of the mounting post 341 is smaller than that of the retaining post 342, and the side surface of the mounting post 341 is the mounting surface 32. When installing the paper tube, the diameter of the retaining post 342 is larger than the diameter of the through hole in the paper tube, and the two retaining posts can axially position the paper tube.

[0045] It should be understood that the above description of the specific embodiments of the present invention is only for explaining the technical route and features of the present invention, and its purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly. However, the present invention is not limited to the above specific embodiments. Any changes or modifications made within the scope of the claims of the present invention should be covered by the protection scope of the present invention.

Claims

1. A paper receiving clamping assembly inside a printer, characterized in that, The paper receiving and clamping assembly in the printer includes: a bottom plate (1), paired clamping support plates (2), and a docking head (3); The clamping support plates (2) are slidably arranged on the bottom plate (1), and the docking heads (3) are rotatably arranged on the first side surfaces of the clamping support plates (2). The docking heads (3) on the two clamping support plates (2) are arranged oppositely, and the two docking heads (3) are used for installing a paper tube; The side surface of the docking head (3) includes a guiding surface (31) and an installation surface (32) connected to each other. The guiding surface (31) has a certain taper. A plurality of clamping spaces (33) are recessed inward on the installation surface (32) of the docking head (3). A claw (331) and an elastic member (332) are arranged in the clamping space (33). The first end of the claw (331) is hinged in the clamping space (33). One end of the elastic member (332) abuts against the second end of the claw (331), and the other end of the elastic member (332) abuts against the docking head (3). The second end of the claw (331) can protrude out of the clamping space (33) under the action of the elastic force of the elastic element.

2. The sheet receiving and clamping assembly according to claim 1, wherein, A plurality of teeth (333) protrude at the second end of the claw (331). A slope (334) is arranged at the second end of the claw (331), and the slope (334) is connected to the top end of the claw (331).

3. The sheet receiving clamping assembly according to claim 1 or 2, characterized in that, The paper receiving and clamping assembly further includes a first driving component (4). The first driving component (4) includes: a transmission guide rail (41), a first synchronous pulley (42), a second synchronous pulley (43), and a synchronous belt (44); The transmission guide rail (41) is rotatably installed on the bottom plate (1). The first synchronous pulley (42) and the second synchronous pulley (43) are rotatably arranged on the second side surfaces of the clamping support plates (2). The first synchronous pulley (42) and the second synchronous pulley (43) are connected by the synchronous belt (44); The first synchronous pulley (42) is sleeved on the transmission guide rail (41), and the first synchronous pulley (42) can slide along the transmission guide rail (41). The transmission guide rail (41) can drive the first synchronous pulley (42) to rotate; The second synchronous pulley (43) is connected to the docking head (3) through a transmission shaft, and the second synchronous pulley (43) can drive the docking head (3) to rotate.

4. The sheet receiving and clamping assembly according to claim 3, wherein, The first driving component (4) further includes a tensioning bracket (45) and a tensioning pulley (46); The tensioning bracket (45) is hinged on the second side surface of the clamping support plate (2). A tensioning pulley (46) is rotatably arranged at one end of the tensioning bracket (45). The side surface of the tensioning pulley (46) can abut against the synchronous belt (44). An arc-shaped fixing groove (451) is arranged at the other end of the tensioning bracket (45). The hinge point of the tensioning bracket (45) and the clamping support plate (2) is located between the two ends of the tensioning bracket (45).

5. The paper receiving and clamping assembly according to claim 3, wherein, The first driving component (4) further includes a first driving motor (47) installed on the base plate (1), and the first driving motor (47) can drive the transmission guide rail (41) to rotate.

6. The paper receiving and clamping assembly according to claim 1 or 2, characterized in that, The paper receiving and clamping assembly further includes a second driving component (5), and the second driving component (5) includes a guiding slider (51), a guiding slide rail (52) and a transmission lead screw (53); The guiding slide rail (52) is fixedly installed on the base plate (1), the guiding slider (51) is slidably installed on the guiding slide rail (52), the transmission lead screw (53) is rotatably installed on the base plate (1), the transmission lead screw (53) is provided with a first driving section and a second driving section, a left-handed thread is provided on the first driving section, and a right-handed thread is provided on the second driving section; The guiding sliders (51) are sleeved on both the first driving section and the second driving section of the transmission lead screw (53), corresponding internal thread holes are provided on the guiding sliders (51), and the transmission lead screw (53) can drive the two guiding sliders (51) to approach or move away from each other; the clamping support plates (2) are fixedly provided on the guiding sliders (51).

7. The paper receiving and clamping assembly according to claim 6, wherein The second driving component (5) further includes a second driving motor (54) provided on the base plate (1), and the second driving motor (54) can drive the transmission lead screw (53) to rotate.

8. The paper receiving and clamping assembly according to claim 1 or 2, wherein The docking head (3) includes a baffle plate (34) and a tapered head (35), the baffle plate (34) is rotatably installed on the clamping support plate (2), the tapered head (35) is fixedly installed on the baffle plate (34), the guiding surface (31) is provided on the side surface of the tapered head (35), and the installation surface (32) is provided on the baffle plate (34).

9. The paper receiving and clamping assembly according to claim 8, wherein, The baffle plate (34) includes a mounting post (341) and a blocking post (342) that are coaxially arranged and connected to each other, the diameter of the mounting post (341) is smaller than the diameter of the blocking post (342), and the side surface of the mounting post (341) is the installation surface (32).

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