CN220011472U - Paper feeding mechanism of printing machine for preventing paper jam - Google Patents

Abstract

The utility model relates to a paper feeding mechanism of a printing machine for preventing paper jam, which belongs to the field of printing technology and comprises a paper rubbing roller, a printing machine body, a press roller, a receiving roller, a driving assembly, a monitoring assembly and a deviation rectifying assembly, wherein the paper rubbing roller, the press roller and the receiving roller are all arranged on the printing machine body in a rotating way, but the press roller and the receiving roller are arranged on the printing machine body up and down; the driving component is arranged on the printer body and used for driving the paper rubbing roller and the compression roller to rotate; the monitoring component is arranged on the printer body and is used for monitoring the position of the paper on the printer body; the deviation correcting component is arranged on the printer body and used for driving the paper to transversely move on the printer body. The paper pickup roller enables paper sheets Zhang Jinliao, the position of the paper sheets on the printer body is monitored by the monitoring component, the offset of the offset paper sheets is corrected by the correction component, the paper sheets are flattened by the pressing roller and the receiving roller, and the problem that paper jam is caused by the offset of the paper sheets in the feeding process is effectively solved.

Description

Paper feeding mechanism of printing machine for preventing paper jam

Technical Field

The utility model relates to the field of printing technology, in particular to a paper feeding mechanism of a printing machine for preventing paper jam.

Background

The printer is a machine for printing characters and images, and generally consists of mechanisms such as feeding, conveying, plate loading, inking, imprinting and the like, and the working principle of the printer is as follows: the characters and images to be printed are first made into printing plate, then installed on the printer, and the ink is then applied manually or by the printer to the places where the characters and images are on the printing plate, and then transferred directly or indirectly to paper or other printing stock, so that the same printed matter as the printing plate is copied.

At present, most of printers adopt a paper rubbing roller and a pressing roller to feed paper, then print the paper, the paper is separated from a paper stack by the paper rubbing roller, the situation that paper jam occurs due to simultaneous feeding of a plurality of papers is prevented, the pressed roller flattens the separated single paper, the situation that paper jam occurs due to paper wrinkling is prevented, and the feeding of the paper is realized under the combined action.

The pickup roller and the pressing roller can realize smooth feeding of the sheet Zhang Ju, but mechanical vibration is inevitably generated in the rotation process of the pickup roller and the pressing roller, so that the sheet is deviated in the feeding process, and paper jam is also caused.

Disclosure of Invention

In order to solve the problem of paper jam caused by deviation of paper in the feeding process, the utility model provides a paper feeding mechanism of a printer for preventing paper jam.

The utility model provides a paper feeding mechanism of a printing machine for preventing paper jam, which adopts the following technical scheme:

the paper feeding mechanism of the printing machine for preventing paper jam comprises a paper rubbing roller, a printing machine body, a press roller, a receiving roller, a driving assembly, a monitoring assembly and a deviation rectifying assembly, wherein the paper rubbing roller, the press roller and the receiving roller are all rotatably arranged on the printing machine body, but the press roller and the receiving roller are arranged up and down on the printing machine body; the driving component is arranged on the printer body and is used for driving the pickup roller and the compression roller to rotate; the monitoring component is arranged on the printer body and is used for monitoring the position of the paper on the printer body; the deviation correcting component is arranged on the printer body and used for driving the paper to transversely move on the printer body.

Through adopting above-mentioned technical scheme, the staff drives through drive assembly and rubs paper roll and compression roller and rotate, it leaves from single Zhang Cuo in the pile to rub paper roll, and carry to the transmission on the printing machine body, the in-process of paper transmission on the printing machine body, monitor assembly monitors the position of paper on the printing machine body, when the skew appears in the paper on the printing machine body when monitoring, it drives the paper sideslip on the printing machine body to drive the paper through rectifying assembly, rectify the paper of skew, then the paper is carried to flattening between compression roller and the uptake roller, the follow-up working procedure of feeding prints, rub paper roll and make paper sheet Zhang Jinliao with the hands, rectifying assembly rectifies the paper of skew, compression roller and uptake roller prevention paper fold, effectively improve the paper and appear the skew in-process and lead to the problem of card paper.

Optionally, the deviation rectifying assembly comprises a bidirectional screw rod, a push plate and a first motor, wherein the bidirectional screw rod is rotatably arranged on the printing machine body, two push plates are arranged on the bidirectional screw rod in a threaded manner, but two sections of threads of the bidirectional screw rod on the two push plates are reversely arranged; the first motor is arranged on the printer body, and an output shaft of the first motor is coaxially connected with the bidirectional screw rod.

Through adopting above-mentioned technical scheme, the staff starts first motor, and the output shaft of first motor drives two-way lead screw and rotates, and then makes two push plates be close to each other on two-way lead screw, and the push plate drives the paper sideslip of skew and resets on the printing body, effectively improves the convenience that the staff rectifies to the paper of skew.

Optionally, the printing machine body is last to be provided with the guide bar with two-way lead screw parallel arrangement, two the push pedal all slides and sets up on the deflector.

Through adopting above-mentioned technical scheme, the removal of guide bar restriction push pedal prevents that the push pedal from following two-way lead screw and rotating together for the push pedal can only follow the length direction of guide bar and remove, effectively promotes the stability that the push pedal removed.

Optionally, the monitoring component includes photoelectric sensor and controller, photoelectric sensor is provided with two on the printing machine body, the controller sets up on the printing machine body, just photoelectric sensor and first motor all with controller electric connection.

Through adopting above-mentioned technical scheme, the staff divide into two photoelectric sensor and installs on the printing machine body for interval and the width adaptation of paper between two photoelectric sensor, when one of them photoelectric sensor did not monitor the paper, can judge that the paper appears shifting on the printing machine body, photoelectric sensor sent the signal of starting first motor to the controller, and the manufacturing of controller control first motor start to the skew is rectified, effectively promotes the convenience that whether the staff monitored the paper skew, and controls the start of first motor through the controller, makes the paper feeding process more automatic.

Optionally, the spout has been seted up on the printing machine body, two photoelectric sensor all slides and sets up in the spout, just the last screw thread of photoelectric sensor is provided with the handle bolt, be provided with on the handle bolt and be used for the limiting plate with the diapire looks butt of spout.

Through adopting above-mentioned technical scheme, the staff rotates the handle bolt for the diapire of spout is kept away from to the limiting plate, can order about photoelectric sensor at this moment and slide in the spout, realizes the distance adjustment between two photoelectric sensors, then reverse rotation handle bolt, makes the limiting plate support tightly with the diapire of spout, can restrict photoelectric sensor's removal, and the staff of being convenient for adjusts the interval between two photoelectric sensors, promotes photoelectric sensor's suitability to the paper of different width.

Optionally, the driving assembly comprises a second motor, a first belt pulley, a second belt pulley, a third belt pulley and a belt, wherein the second motor is arranged on the printing machine body, and the first belt pulley is coaxially arranged on an output shaft of the second motor; the second belt pulley is coaxially arranged on the paper rubbing roller, the third belt pulley is arranged on the press roller, and the belt is sleeved on the first belt pulley, the second belt pulley and the third belt pulley.

Through adopting above-mentioned technical scheme, the staff starts the second motor, and the output shaft of second motor drives first band pulley and rotates, and first band pulley drives the belt and rotates, and the belt drives second gear and third gear synchronous rotation again, and then drives and rub paper roll and compression roller synchronous rotation, when reducing the energy consumption, promotes rub paper roll and the stability of compression roller during rotation.

Optionally, a sliding block is slidably arranged on the printer body, and the receiving roller is rotatably arranged on the sliding block; the printing machine body is provided with a control assembly for driving the sliding block to slide on the printing machine body.

Through adopting above-mentioned technical scheme, the staff drives the slider through control assembly and slides on the printing machine body, and the slider drives the uptake roller and removes for the uptake roller is close to or keeps away from the compression roller, realizes the distance adjustment between uptake roller and the compression roller, effectively promotes the suitability of compression roller and uptake roller to the paper of different thickness.

Optionally, the control assembly includes a third motor and a screw, the third motor is disposed on the printer body, and the screw is coaxially disposed on an output shaft of the third motor and is disposed on the slider in a threaded manner.

Through adopting above-mentioned technical scheme, the staff starts the third motor, and the output shaft of third motor drives the screw rod and rotates, and then makes the slider slide on the printing machine body, effectively promotes the staff and orders about slider gliding convenience on the printing machine body.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. the monitoring component monitors the position of the paper on the printer body, the deviation correcting component corrects the deviation of the deviated paper, and the problem of paper jam caused by deviation of the paper in the feeding process is effectively solved;

2. the applicability of the photoelectric sensors to paper with different widths is improved through the adjustment of the distance between the two photoelectric sensors;

3. and the applicability of the press roller and the receiving roller to paper with different thicknesses is improved through the adjustment of the distance between the press roller and the receiving roller.

Drawings

Fig. 1 is a schematic structural view of a paper feeding mechanism of a paper jam preventing printer according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a structure (partially cut away from the printer body) from another perspective according to an embodiment of the present utility model.

Fig. 3 is an enlarged partial schematic view of the portion a in fig. 2.

Fig. 4 is a partially enlarged schematic view of the portion B in fig. 2.

Reference numerals: 1. a pickup roller; 2. a printer body; 21. a chute; 3. a press roller; 4. a receiving roller; 5. a drive assembly; 51. a second motor; 52. a first pulley; 53. a second pulley; 54. a third pulley; 55. a belt; 6. a monitoring component; 61. a photoelectric sensor; 62. a controller; 7. a deviation rectifying component; 71. a bidirectional screw rod; 72. a push plate; 73. a first motor; 8. a guide rod; 9. a handle bolt; 10. a limiting plate; 11. a slide block; 12. a control assembly; 121. a third motor; 122. a screw; 13. foam board.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-4.

The embodiment of the utility model discloses a paper feeding mechanism of a printing machine for preventing paper jam.

Referring to fig. 1, the paper feeding mechanism of the paper jam preventing printer comprises a paper rubbing roller 1, a printer body 2, a press roller 3, a receiving roller 4, a driving assembly 5, a monitoring assembly 6 and a deviation rectifying assembly 7, wherein in the embodiment, the printer body 2 further comprises mechanisms such as a plate loading mechanism, an ink coating mechanism, an embossing mechanism and the like, but in the embodiment of the utility model, only the conveying mechanism of a feeding section is shown in the drawings.

Referring to fig. 1 and 2, a pickup roller 1 is rotatably mounted on a printer body 2, and in this embodiment, a suction cup is mounted on the pickup roller, and a sheet Zhang Xifu is separated from a stack by suction force of the suction cup; the press roll 3 is rotatably arranged on the printer body 2, the printer body 2 is slidably provided with a sliding block 11, the receiving roll 4 is rotatably arranged on the sliding block 11, and the receiving roll 4 and the press roll 3 are arranged up and down on the printer body 2; the driving component 5 is arranged on the printer body 2 and is used for driving the pickup roller 1 and the compression roller 3 to rotate; a monitoring assembly 6 is mounted on the printer body 2 and is used for monitoring the position of the paper on the printer body 2; the deviation correcting assembly 7 is mounted on the printer body 2 and is used for driving the paper to transversely move on the printer body 2.

The staff drives the paper rubbing roller 1 and the compression roller 3 to rotate through the driving component 5, the paper rubbing roller 1 adsorbs and rubs off the paper and then drives the paper to move onto the conveying belt on the printer body 2, when the printer body 2 transmits the paper, the monitoring component 6 monitors the position of the paper on the printer body 2, when the paper deviates, the deviation correcting component 7 is controlled to drive the paper to transversely move on the printer body 2 so as to correct the paper, then the paper is conveyed between the compression roller 3 and the receiving roller 4, the compression roller 3 and the receiving roller 4 flatten the paper, paper wrinkles are prevented, finally the paper is conveyed and fed for carrying out the working step of subsequent printing, the paper position is monitored through the monitoring component 6, the deviation correcting component 7 corrects the paper, and the problem of paper jam caused by the deviation in the feeding process is effectively improved.

Referring to fig. 1 and 2, a control assembly 12 for driving a slider 11 to slide on the printer body 2 is mounted on the printer body 2, the control assembly 12 includes a third motor 121 and a screw 122, the third motor 121 is mounted on the printer body 2, the screw 122 is coaxially mounted on an output shaft of the third motor 121, and the screw 122 is screw-mounted on the slider 11; in this embodiment, the printer body 2 is provided with a receiving groove along the vertical direction, and the slider 11 slides in the receiving groove, so as to improve the sliding stability of the slider 11 on the printer body 2.

The staff starts the third motor 121, and the output shaft of third motor 121 drives screw rod 122 and rotates, and then makes slider 11 in holding tank internal sliding, and slider 11 drives and accepts roller 4 and remove for accept roller 4 is close to or keeps away from compression roller 3, realizes accepting the distance adjustment between roller 4 and the compression roller 3, effectively promotes compression roller 3 and accepts roller 4 to the suitability of different thickness paper.

Referring to fig. 2 and 3, the monitoring assembly 6 includes a photoelectric sensor 61 and a controller 62, a chute 21 is formed on the printer body 2 along the width direction of the printer body 2, two photoelectric sensors 61 are slidably mounted in the chute 21, and the chute 21 may be a dovetail groove, a T-shaped groove, etc., in this embodiment, the chute 21 is a dovetail groove, so as to effectively improve the sliding stability of the photoelectric sensor 61 in the chute 21; the handle bolt 9 is mounted on the photoelectric sensor 61 in a threaded manner, the limiting plate 10 for being abutted against the bottom wall of the chute 21 is mounted on the handle bolt 9, and in the embodiment, the limiting plate 10 is made of rubber, has the characteristics of high friction force, wear resistance and the like, and further improves the limiting effect of the photoelectric sensor 61; the controller 62 is mounted on the printer body 2, and the photoelectric sensor 61 and the deviation rectifying component 7 are electrically connected with the controller 62.

The staff rotates the handle bolt 9 to enable the limiting plate 10 to be far away from the bottom wall of the chute 21, then moves the two photoelectric sensors 61 to enable the distance between the two photoelectric sensors 61 to be matched with the width of paper, then reverses the handle bolt 9 to enable the limiting plate 10 to be abutted against the bottom wall of the chute 21, fixes the photoelectric sensors 61, facilitates the adjustment of the distance between the two photoelectric sensors 61 by the staff, and improves the applicability of the photoelectric sensors 61 to paper with different widths; when paper passes below the photoelectric sensors 61, the photoelectric sensors 61 emit pulse light to the paper, the pulse light is reflected by the paper and then received by the receiver of the photoelectric sensors 61, if the interval from the emission of the pulse light to the receiving of the reflected pulse light exceeds a set error range, it can be judged that one of the photoelectric sensors 61 does not monitor the paper below, the paper deviates on the printer body 2, then the photoelectric sensors 61 send an electric signal for starting the deviation correcting assembly 7 to the controller 62, the deviation correcting assembly 7 corrects the deviated paper, the convenience of monitoring whether the paper deviates by workers is effectively improved, and the deviation correcting assembly 7 is controlled by the controller 62 to correct the paper, so that the paper feeding process of the paper is more automatic.

Referring to fig. 2 and 4, the deviation rectifying assembly 7 includes a bi-directional screw 71, a push plate 72 and a first motor 73, the bi-directional screw 71 is rotatably installed on the printer body 2, the push plate 72 is threaded on the bi-directional screw 71, in this embodiment, two opposite ends of the two push plates 72 are both installed with foam plates 13, so as to reduce damage to paper when the push plate 72 pushes the paper; however, the two sections of threads of the two push plates 72 on which the two-way lead screw 71 is positioned are reversely arranged, the printer body 2 is provided with the guide rod 8, the guide rod 8 is parallel to the two-way lead screw 71, the two push plates 72 are both slidably arranged on the guide rod 8, and the guide rod 8 drives the push plates 72 to synchronously rotate when limiting the rotation of the two-way lead screw 71, so that the push plates 72 can only move along the length direction of the guide rod 8, and the moving stability of the push plates 72 is effectively improved; the first motor 73 is mounted on the printer body 2, the first motor 73 is electrically connected with the controller 62, and an output shaft of the first motor 73 is coaxially connected with the bidirectional screw 71.

The controller 62 controls the first motor 73 to start, and the output shaft of the first motor 73 drives the bidirectional screw rod 71 to rotate, so that two pushing plates 72 are close to each other on the bidirectional screw rod 71, the pushing plates 72 drive the offset paper to transversely move on the printing body and reset, and the convenience of correcting deviation of the offset paper by workers is effectively improved.

Referring to fig. 1, the driving assembly 5 includes a second motor 51, a first pulley 52, a second pulley 53, a third pulley 54, and a belt 55, the second motor 51 being mounted on the printer body 2, the first pulley 52 being coaxially mounted on an output shaft of the second motor 51; the second pulley 53 is coaxially mounted on the driving shaft of the pickup roller 1, the third pulley 54 is coaxially mounted on the driving shaft of the press roller 3, and the belt 55 is simultaneously looped over the first pulley 52, the second pulley 53, and the third pulley 54.

The staff starts the second motor 51, the output shaft of the second motor 51 drives the first belt pulley 52 to rotate, the first belt pulley 52 drives the belt 55 to rotate, the belt 55 drives the second gear and the third gear to synchronously rotate, and then the pickup roller 1 and the compression roller 3 are driven to synchronously rotate, so that the energy consumption for driving the pickup roller 1 and the compression roller 3 to rotate is reduced, and meanwhile the stability of the pickup roller 1 and the compression roller 3 in rotation is improved.

The embodiment of the utility model provides a paper feeding mechanism of a printing machine for preventing paper jam, which comprises the following implementation principles: the staff adjusts the interval between two photoelectric sensors 61 first to enable the interval between the two photoelectric sensors 61 to be matched with the width of paper, then adjusts the interval between the receiving roller 4 and the pressing roller 3 to enable the interval between the receiving roller 4 and the pressing roller 3 to be matched with the thickness of the paper, then starts the second motor 51, the second motor 51 drives the belt 55 to rotate through the first belt pulley 52, the belt 55 drives the second belt pulley 53 and the third belt pulley 54 to rotate, the paper pickup roller 1 and the pressing roller 3 are further enabled to rotate, the paper pickup roller 1 adsorbs the paper from the paper stack and conveys the paper to the printer body 2, when the paper is conveyed on the printer body 2, the photoelectric sensors 61 monitor the position of the paper, when the photoelectric sensors 61 monitor that the paper is offset, an electric signal for starting the first motor 73 is sent to the controller 62, the first motor 73 drives the bidirectional screw 71 to rotate to enable the two push plates 72 to be close to each other, the offset paper is reset on the printer body 2, then the paper is conveyed between the pressing roller 3 and the receiving roller 4, feeding is carried after the paper is flattened, the paper is flattened Zhang Jinliao, the paper offset correcting assembly is enabled to be corrected, and the paper is fed to the paper is corrected in the paper correction process by the pressing roller 4, and the paper correction assembly is effectively corrected in the paper correction process.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. A paper feeding mechanism of a printing machine for preventing paper jam is characterized in that: the automatic printing machine comprises a paper rubbing roller (1), a printing machine body (2), a press roller (3), a receiving roller (4), a driving assembly (5), a monitoring assembly (6) and a deviation rectifying assembly (7), wherein the paper rubbing roller (1), the press roller (3) and the receiving roller (4) are all rotatably arranged on the printing machine body (2), but the press roller (3) and the receiving roller (4) are arranged up and down on the printing machine body (2); the driving assembly (5) is arranged on the printer body (2) and is used for driving the pickup roller (1) and the compression roller (3) to rotate; the monitoring assembly (6) is arranged on the printer body (2) and is used for monitoring the position of the paper on the printer body (2); the deviation correcting component (7) is arranged on the printer body (2) and is used for driving paper to transversely move on the printer body (2).

2. A jam-resistant printer paper feed mechanism as set forth in claim 1, wherein: the deviation correcting assembly (7) comprises a bidirectional screw rod (71), a push plate (72) and a first motor (73), wherein the bidirectional screw rod (71) is rotatably arranged on the printing machine body (2), two push plates (72) are arranged on the bidirectional screw rod (71) in a threaded mode, and two sections of threads of the bidirectional screw rod (71) on the two push plates (72) are reversely arranged; the first motor (73) is arranged on the printer body (2), and an output shaft of the first motor (73) is coaxially connected with the bidirectional screw rod (71).

3. A jam-resistant printer paper feed mechanism as set forth in claim 2, wherein: the printing machine is characterized in that a guide rod (8) is arranged on the printing machine body (2) in parallel with the bidirectional screw rod (71), and two pushing plates (72) are arranged on the guide plate in a sliding mode.

4. A jam-resistant printer paper feed mechanism as set forth in claim 2, wherein: the monitoring assembly (6) comprises a photoelectric sensor (61) and a controller (62), wherein the photoelectric sensor (61) is arranged on the printer body (2), the controller (62) is arranged on the printer body (2), and the photoelectric sensor (61) and the first motor (73) are electrically connected with the controller (62).

5. The jam-resistant printer paper feed mechanism of claim 4 wherein: the printing machine is characterized in that a chute (21) is formed in the printing machine body (2), two photoelectric sensors (61) are arranged in the chute (21) in a sliding mode, a handle bolt (9) is arranged on each photoelectric sensor (61) in a threaded mode, and a limiting plate (10) used for being abutted to the bottom wall of the chute (21) is arranged on each handle bolt (9).

6. A jam-resistant printer paper feed mechanism as set forth in claim 1, wherein: the driving assembly (5) comprises a second motor (51), a first belt wheel (52), a second belt wheel (53), a third belt wheel (54) and a belt (55), wherein the second motor (51) is arranged on the printing machine body (2), and the first belt wheel (52) is coaxially arranged on an output shaft of the second motor (51); the second belt wheel (53) is coaxially arranged on the pickup roller (1), the third belt wheel (54) is arranged on the compression roller (3), and the belt (55) is sleeved on the first belt wheel (52), the second belt wheel (53) and the third belt wheel (54).

7. A jam-resistant printer paper feed mechanism as set forth in claim 1, wherein: the printing machine body (2) is provided with a sliding block (11) in a sliding manner, and the receiving roller (4) is rotatably arranged on the sliding block (11); the printing machine body (2) is provided with a control assembly (12) for driving the sliding block (11) to slide on the printing machine body (2).

8. The jam-resistant printer paper feed mechanism of claim 7 wherein: the control assembly (12) comprises a third motor (121) and a screw rod (122), the third motor (121) is arranged on the printer body (2), and the screw rod (122) is coaxially arranged on an output shaft of the third motor (121) and is arranged on the sliding block (11) in a threaded manner.