CN211521079U

CN211521079U - Automatic roll changing device for printing

Info

Publication number: CN211521079U
Application number: CN201922133154.9U
Authority: CN
Inventors: 率伟选; 王鹏程; 李鸿恩
Original assignee: Henan Daily Newspaper Group Dahe Printing Co ltd
Current assignee: Henan Daily Newspaper Group Dahe Printing Co ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-18
Anticipated expiration: 2029-12-02

Abstract

The utility model relates to an automatic reel change device of printing, it includes the frame and installs and be used for driving scroll pivoted accelerating device in the frame, accelerating device includes driving belt, rotor arm, action wheel and follows the driving wheel, and rotor arm one end is rotated and is connected in the frame to the rotor arm is connected with drive rotor arm pivoted pneumatic cylinder, the action wheel rotates the one end of connecting at the rotor arm, the one end rotation that the action wheel was kept away from to the rotor arm is provided with the rotating turret, rotate from the driving wheel and install the one end at the rotating turret towards the scroll to be provided with the extension spring on the rotating turret, the action wheel is kept away from to the effort drive of extension spring effect on the rotating turret, the driving belt transmission is connected at the action wheel and follows the driving wheel. The utility model discloses have the driving belt who improves accelerating device and the contact surface of scroll, improve the drive power effect to the scroll.

Description

Automatic roll changing device for printing

Technical Field

The utility model belongs to the technical field of a printing technique of changing coils and specifically relates to an automatic change of coils device of printing is related to.

Background

The printing machine generally consists of a plate loading mechanism, an ink coating mechanism, an impression mechanism and a paper conveying mechanism. The working principle is as follows: the characters and images to be printed are made into printing plate, then it is mounted on the printing machine, then the ink is coated on the position of the characters and images on the printing plate by manual or printing machine, then it is directly or indirectly transferred onto paper or other printing material, so that the same printed matter as that of the printing plate can be reproduced.

The patent document with the publication number of CN206242662U discloses a printing unit and a paper feeding device thereof, which comprises a frame and a cutting device, wherein the upper end of the frame is provided with an accelerating device and an automatic cutting system for accelerating a replacement paper roll, the automatic cutting system comprises a rotating speed detection device, and the automatic cutting system is arranged on the accelerating device and is used for detecting the rotating speed of the replacement paper roll and sending a cutting signal when the rotating speed reaches a preset value; the cutting device is connected with the rotating speed detection device, cuts off the replaced paper roll corresponding to the cutting signal, and is rotatably connected to the upper end of the rack; the accelerating device comprises a shell rotatably connected to the upper end of the rack, a first motor fixed on one side of the shell, and a transmission belt connected to the first motor and used for being abutted to the replacement paper roll, wherein the rotating direction of the transmission belt is opposite to that of the replacement paper roll.

In the structure, when the transmission belt presses the paper roll, the transmission belt can press the paper roll only by the deformation of the transmission belt, so that the contact surface between the transmission belt and the paper roll is small, and the driving force for the paper roll is insufficient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic roll change device of printing, it has the driving belt who improves accelerating device and the contact surface of scroll, improves the drive power effect to the scroll.

The above object of the present invention is achieved by the following technical solutions:

the utility model provides an automatic roll-changing device of printing, includes the frame and installs and be used for driving scroll pivoted accelerating device in the frame, accelerating device includes driving belt, rotor arm, action wheel and follows the driving wheel, and rotor arm one end is rotated and is connected in the frame to the rotor arm is connected with drive rotor arm pivoted pneumatic cylinder, the action wheel rotates the one end of connecting at the rotor arm, the one end rotation that the action wheel was kept away from to the rotor arm is provided with the rotating turret, rotate from the driving wheel and install the one end at the rotating turret towards the scroll to be provided with the extension spring on the rotating turret, the action force drive of extension spring effect on the rotating turret is kept away from the action wheel, the driving belt transmission is connected at the action wheel and is.

Through adopting above-mentioned technical scheme, during the use, when pneumatic cylinder drive rotor arm was close to the scroll, driving belt and scroll contact back, driving belt receives the compression of scroll, make driving belt take the rolling stand to rotate, the extension spring that is connected with on the rolling stand carries out the tensioning to driving belt, driving belt warp the ratio greatly under the effect of extension spring, it is great to make the contact surface of driving belt and scroll, thereby when drive arrangement drove the action wheel and passes through driving belt and drive the scroll rotation, can produce great drive power to the scroll.

The utility model discloses further set up to: the middle part of the rotating frame is rotatably connected to the rotating arm, one end, far away from the driven wheel, of the rotating arm is provided with a first hanging rod, a second hanging rod is arranged on the rotating arm and arranged in parallel with the first hanging rod, and two ends of the tension spring are respectively connected to the first hanging rod and the second hanging rod in a hanging mode.

By adopting the technical scheme, the tension springs are arranged between the first hanging rod and the second hanging rod, so that the connection of the tension springs is more convenient, and meanwhile, the first hanging rod is parallel to the second hanging rod, so that a plurality of identical tension springs can be arranged between the first hanging rod and the second hanging rod.

The utility model discloses further set up to: the rotating arm is arranged in a V shape, an idler wheel is arranged at a V-shaped corner of the rotating arm, the idler wheel is rotatably connected to the rotating arm, and the idler wheel is supported on the inner side of the transmission belt.

Through adopting above-mentioned technical scheme, the rotor arm sets up to the V-arrangement, and the rotor arm corner sets up the idler, can make the idler prop driving belt, makes the scroll can further extrude to driving belt's direction.

The utility model discloses further set up to: the transmission belt is made of rubber materials.

Through adopting above-mentioned technical scheme, drive belt sets to rubber materials, can make the frictional force increase between drive belt and the scroll.

The utility model discloses further set up to: the driving device is a driving motor which is fixed on the rotating arm, and the driving wheel is coaxially fixed at the output end of the driving motor.

Through adopting above-mentioned technical scheme, driving motor's output is coaxial to be set up the action wheel, and driving motor fixes on the rotor arm to make driving motor during operation, driving motor drives the action wheel and rotates.

The utility model discloses further set up to: the frame is provided with a laser ranging sensor, and the measuring end of the laser ranging sensor points to the center of the paper roll along the radial line of the paper roll.

Through adopting above-mentioned technical scheme, laser rangefinder sensor's measuring end makes laser rangefinder sensor through the distance of measuring apart from the scroll lateral wall along the radial line direction of scroll, can obtain the radius of scroll to provide the reference for driving motor's slew velocity.

The utility model discloses further set up to: be provided with the swing arm in the frame, install a plurality of driving rollers in the swing arm, the driving roller rotates and connects in the swing arm, swing arm one end is rotated and is connected in the frame, and the other end can be swung to the below of scroll, install the telescoping cylinder in the swing arm, the one end of telescoping cylinder is rotated and is connected in the swing arm, and the other end rotates and connects in the frame.

Through adopting above-mentioned technical scheme, set up the swing arm in the frame, the swing arm is close to the below of scroll under the effect of telescoping cylinder, and the driving roller is used for the transmission paper tape, pastes the paper tape on the scroll through the swing arm to make paper tape and fiber container be connected.

The utility model discloses further set up to: the laser ranging sensor is connected with a cylinder, the cylinder is fixed on the swing arm, and the laser ranging sensor is fixed at the output end of the cylinder.

Through adopting above-mentioned technical scheme, laser rangefinder sensor connects on the cylinder, and when the cylinder stretches out to the scroll direction, can take laser rangefinder sensor more to be close to the scroll, makes laser rangefinder sensor's measurement more accurate.

To sum up, the utility model discloses a beneficial technological effect does:

1. when the hydraulic cylinder drives the rotating arm to approach the paper roll, the transmission belt is compressed by the paper roll after contacting the paper roll, so that the transmission belt drives the rotating frame to rotate, the tension spring connected to the rotating frame tensions the transmission belt, the transmission belt has larger deformation under the action of the tension spring, and the contact surface between the transmission belt and the paper roll is larger, so that when the driving device drives the driving wheel to drive the paper roll to rotate through the transmission belt, larger driving force can be generated on the paper roll;

2. the rotating arm is arranged in a V shape, and an idler wheel is arranged at the corner of the rotating arm, so that the idler wheel can support a transmission belt, and a paper roll can be further extruded towards the direction of the transmission belt;

3. the measuring end through laser rangefinder sensor is along the radial line direction of scroll, makes laser rangefinder sensor through the distance of measuring apart from the scroll lateral wall, can obtain the radius of scroll to provide the reference for driving motor's slew velocity.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the accelerator apparatus;

fig. 3 is a partially enlarged schematic view of a portion a in fig. 1.

In the figure, 1, a frame; 2. a paper feeding frame; 3. an acceleration device; 31. a rotating arm; 32. a drive belt; 33. a hydraulic cylinder; 34. a driving wheel; 35. a drive motor; 36. a rotating frame; 37. a driven wheel; 38. a tension spring; 381. a first hanging rod; 382. a second hanging rod; 39. an idler pulley; 4. swinging arms; 41. a telescopic cylinder; 42. a driving roller; 5. a cylinder; 6. a laser ranging sensor; 7. paper roll; 8. a paper strap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses an automatic change of printing is put, including frame 1, be connected with paper frame 2 in frame 1, the middle part of paper frame 2 is rotated and is connected in frame 1, and the rotation axis level of paper frame 2 in frame 1 sets up, and the bilateral symmetry that lies in paper frame 2 rotation axis on paper frame 2 is provided with two stations that are used for installing scroll 7, and at the in-process of changing a roll, paper frame 2 rotates 180 degrees earlier, makes the scroll 7 on the paper frame 2 change the position. An accelerating device 3 is arranged on the frame 1, the accelerating device 3 drives the paper roll 7 to synchronize the speed of the paper roll 7 with the printing speed, so that the paper head on the paper roll 7 is connected with the paper being printed, and the paper roll 7 is automatically changed.

Referring to fig. 2, the accelerating device 3 comprises a rotating arm 31 and a transmission belt 32, one end of the rotating arm 31 is rotatably connected to the frame 1, the rotating arm 31 and the rotating axis of the frame 1 are parallel to the central line of the paper roll 7, a hydraulic cylinder 33 is arranged on the rotating arm 31, one end of the hydraulic cylinder 33 is rotatably connected to the rotating arm 31, and the other end of the hydraulic cylinder 33 is rotatably connected to the frame 1; when the hydraulic cylinder 33 extends or contracts, the rotating arm 31 can be brought close to or away from the side wall of the roll 7. The swivel arm 31 is generally V-shaped and after the swivel arm 31 is brought close to the roll 7, the roll 7 is positioned in the opening of the V-shape of the swivel arm 31, so that the swivel arm 31 is brought closer to the roll 7. A driving wheel 34 is arranged at one end of the rotating arm 31, the driving wheel 34 is rotatably connected to the rotating arm 31, a driving motor 35 is connected to the driving wheel 34, the driving motor 35 is fixed on the rotating arm 31, and the driving wheel 34 is coaxially fixed at the output end of the rotating arm 31, so that the driving wheel 34 can be driven to rotate when the driving motor 35 works. A rotating frame 36 is arranged at one end of the rotating arm 31 far away from the driving wheel 34, the middle part of the rotating frame 36 is rotatably connected to the rotating arm 31, and the rotating axis of the rotating frame 36 and the rotating arm 31 is arranged in parallel with the axis of the driving wheel 34. The tension spring device is characterized in that a driven wheel 37 is arranged at one end, close to the paper roll 7, of the rotating frame 36, the driven wheel 37 is connected to the rotating frame 36 in a rotating mode, a first hanging rod 381 is arranged at the other end of the rotating frame 36, a second hanging rod 382 is arranged on the rotating arm 31, the first hanging rod 381 and the second hanging rod 382 are arranged in parallel and are parallel to the rotating axis of the rotating frame 36, a tension spring 38 is arranged between the first hanging rod 381 and the second hanging rod 382, two ends of the tension spring 38 are hung on the first hanging rod 381 and the second hanging rod 382 respectively, and after the tension spring 38 is used for a long time, the tension spring 38 can be conveniently taken down from the first hanging rod 381 and the second hanging rod. The tension spring 38 may be provided in a plurality of numbers to increase the tension on the turret 36. The force of the tension spring 38 on the rotating frame 36 rotates the driven wheel 37 in a direction away from the driving wheel 34. The driving belt 32 is connected with the driving wheel 34 and the driven wheel 37 in a driving way, and the driving belt 32 can be tensioned under the action of the tension spring 38. When the rotating arm 31 is moved toward the roll 7 in use, the extension of the tension spring 38 increases the deformation of the drive belt 32, thereby increasing the contact area between the drive belt 32 and the surface of the roll 7 and increasing the driving force of the drive belt 32 to the roll 7.

Referring to fig. 2, an idle pulley 39 is provided on the rotating arm 31, the idle pulley 39 is rotatably connected to the rotating arm 31, the idle pulley 39 is located at the corner of the V-shape of the rotating arm 31, the idle pulley 39 is located on the inner side of the transmission belt 32, the transmission belt 32 is made of rubber material, and the idle pulley 39 is supported on the side of the transmission belt 32 away from the paper roll 7, so as to prevent the transmission belts 32 from rubbing against each other and improve the deformation of the transmission belt 32.

Referring to fig. 1 and 3, be provided with swing arm 4 on frame 1, swing arm 4 is located the below of scroll 7, swing arm 4 one end is rotated and is connected on frame 1, the other end can rotate round swing arm 4 and the axis of rotation of frame 1, be connected with telescoping cylinder 41 on swing arm 4, the one end of telescoping cylinder 41 is rotated and is connected on the middle part of swing arm 4, the other end is rotated and is connected on frame 1, when telescoping cylinder 41 extends, make swing arm 4 keep away from with frame 1 pivoted one end vertical rotation to under the scroll 7. A plurality of driving rollers 42 are uniformly provided in the longitudinal direction of the swing arm 4, and the paper tape 8 is conveyed above the driving rollers 42. The swing arm 4 rotates to the one end of scroll 7 below and is provided with cylinder 5, and cylinder 5 fixes on swing arm 4, and the output of cylinder 5 is on a parallel with the axis of scroll 7 to the middle part of the directional scroll 7 of cylinder 5, the fixed laser ranging sensor 6 that is provided with on the output of cylinder 5, the measuring end of laser ranging sensor 6 is along the radial line direction directional center of scroll 7. When stretching to the outer wall position of scroll 7 under the effect of cylinder 5 through laser rangefinder sensor 6, laser rangefinder sensor 6 measures and the 7 outer walls of scroll between the distance to can reachd the diameter of scroll 7, conveniently give accelerating device 3 reference slew velocity.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an automatic roll-changing device of printing, includes frame (1) and installs accelerating device (3) that are used for driving scroll (7) pivoted in frame (1), its characterized in that: the accelerating device (3) comprises a transmission belt (32), a rotating arm (31), a driving wheel (34) and a driven wheel (37), one end of the rotating arm (31) is rotatably connected to the frame (1), and the rotating arm (31) is connected with a hydraulic cylinder (33) which drives the rotating arm (31) to rotate, the driving wheel (34) is rotatably connected with one end of the rotating arm (31), a rotating frame (36) is rotatably arranged at one end of the rotating arm (31) far away from the driving wheel (34), the driven wheel (37) is rotatably arranged at one end of the rotating frame (36) facing the paper roll (7), and the rotating frame (36) is provided with a tension spring (38), the acting force of the tension spring (38) acting on the rotating frame (36) drives the driven wheel (37) to be far away from the driving wheel (34), the transmission belt (32) is in transmission connection with the driving wheel (34) and the driven wheel (37), and the driving wheel (34) is connected with a driving device.

2. A print auto-changer according to claim 1, wherein: the middle part of rotating turret (36) is rotated and is connected on rotor arm (31), and one end that driven wheel (37) was kept away from in rotor arm (31) is provided with peg (381), be provided with peg (382) on rotor arm (31), peg (381) and peg (382) parallel arrangement, the both ends of extension spring (38) are hung respectively on peg (381) and peg (382).

3. A print roll changer according to claim 1 or 2, wherein: the rotating arm (31) is arranged in a V shape, an idler pulley (39) is arranged at a V-shaped corner of the rotating arm (31), the idler pulley (39) is rotatably connected to the rotating arm (31), and the idler pulley (39) is supported on the inner side of the transmission belt (32).

4. A print auto-changer according to claim 3, wherein: the transmission belt (32) is made of rubber materials.

5. The automatic roll changer according to claim 4, wherein: the driving device is a driving motor (35), the driving motor (35) is fixed on the rotating arm (31), and the driving wheel (34) is coaxially fixed at the output end of the driving motor (35).

6. A print auto-changer according to claim 1, wherein: the laser distance measuring device is characterized in that a laser distance measuring sensor (6) is arranged on the rack (1), and a measuring end of the laser distance measuring sensor (6) points to the center of the paper roll (7) along the radial line of the paper roll (7).

7. The automatic roll changer according to claim 6, wherein: be provided with swing arm (4) on frame (1), install a plurality of driving roller (42) on swing arm (4), driving roller (42) rotate and connect on swing arm (4), swing arm (4) one end is rotated and is connected on frame (1), and the other end can swing to the below of scroll (7), install telescoping cylinder (41) on swing arm (4), the one end of telescoping cylinder (41) is rotated and is connected on swing arm (4), and the other end rotates and connects on frame (1).

8. The automatic roll changer according to claim 7, wherein: be connected with cylinder (5) on laser rangefinder sensor (6), cylinder (5) are fixed on swing arm (4), the output at cylinder (5) is fixed in laser rangefinder sensor (6).