CN214610670U

CN214610670U - Automatic leveling mechanism

Info

Publication number: CN214610670U
Application number: CN202120117771.4U
Authority: CN
Inventors: 王培学; 王培玉; 黄晓佳
Original assignee: Shantou Dongfeng Printing Co Ltd
Current assignee: Shantou Dongfeng Printing Co Ltd
Priority date: 2021-01-15
Filing date: 2021-01-15
Publication date: 2021-11-05
Anticipated expiration: 2031-01-15

Abstract

The utility model relates to the technical field of printing equipment, and discloses an automatic leveling mechanism, which comprises an upper leveling roller, a lower leveling roller, a sliding seat, a support frame, a driving device and a control device, wherein the upper leveling roller and the lower leveling roller are oppositely arranged up and down to clamp a paper tape; the two sides of the support frame are respectively provided with a sliding seat, one end of the upper leveling roller and one end of the lower leveling roller are both installed on one sliding seat, the other end of the upper leveling roller and the other end of the lower leveling roller are both installed on the other sliding seat, the driving device is connected with the sliding seats, and the control device is electrically connected with the driving device so as to control the driving device to drive the sliding seats to slide up and down relative to the support frame. The utility model discloses can roll up core crookedness adjustment leveling amplitude according to the paper tape to avoid the cross cutting platform to roll up the great card paper of core crookedness and lead to shutting down because of the paper.

Description

Automatic leveling mechanism

Technical Field

The utility model relates to a lithography apparatus technical field especially relates to an automatic leveling mechanism.

Background

At present, with the development of society, the profit of the printing industry is reduced, and the demand for small-batch and multi-variety printing is gradually increased. The intelligent manufacturing is combined, the production cost is reduced, the production efficiency is improved, and the process is combined to be the necessary choice for printing enterprises. For example, cigarette packet printing, roll paper printing rolling, roll paper unevenness, die cutting, quality control are integrative to be inevitable selection, have not only improved production efficiency, have saved the material, have also reduced staff's amount of labour and staff quantity simultaneously. For web printing, high speed flat-bed flat-die cutting of web is the preferred method because of the lower plate making cost compared to the circular die cutting method. However, the roll core bending of the paper tape is often relatively large in the web flat-pressing flat-die-cutting process, so that the die-cutting platform is often jammed in the process of die-cutting the paper tape, and is abnormally stopped.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model aims at providing an automatic levelling mechanism to solve current cross cutting platform and roll up the great problem that paper card paper leads to unusual shut down of easily appearing of core crookedness because of the paper tape.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the automatic leveling mechanism comprises an upper leveling roller, a lower leveling roller, a sliding seat, a supporting frame, a driving device and a control device, wherein the upper leveling roller and the lower leveling roller are oppositely arranged up and down to clamp a paper tape; the two sides of the support frame are respectively provided with a sliding seat, one end of the upper leveling roller and one end of the lower leveling roller are both installed on one sliding seat, the other end of the upper leveling roller and the other end of the lower leveling roller are both installed on the other sliding seat, the driving device is connected with the sliding seats, and the control device is electrically connected with the driving device to control the driving device to drive the sliding seats to slide up and down relative to the support frame.

Preferably, the driving device comprises a driving motor, a transmission rod and two driving screw rods, the driving motor is connected with the transmission rod to drive the transmission rod to rotate, the transmission rod is provided with two gears, one end of each driving screw rod is meshed with one gear of the transmission rod, and the other end of each driving screw rod is in threaded connection with one sliding seat.

Preferably, a through hole is formed in the sliding seat, an internal thread is formed in the through hole, an external thread matched with the internal thread is arranged at one end of the driving screw rod, and the end, provided with the external thread, of the driving screw rod is inserted into the through hole.

Preferably, the gear is a sector gear.

Preferably, the central axis of the transmission rod is perpendicular to the central axis of the driving screw rod.

Preferably, the support frame is provided with a slide rail, the sliding seat is mounted on the slide rail, and the sliding seat can slide along the slide rail.

Preferably, one or more supporting seats are arranged on the circumference of the upper leveling roller; one or more supporting seats are arranged on the circumference of the lower leveling roller.

Preferably, a plurality of the supporting seats are arranged at intervals along the axis of the upper leveling roller; and the supporting seats are arranged at intervals along the axis of the lower leveling roller.

The embodiment of the utility model provides an automatic leveling mechanism compares with prior art, and its beneficial effect lies in:

the utility model discloses automatic leveling mechanism levels the work through the last leveling roller that sets up and leveling roller down to the paper tape, the sliding seat through setting drives and goes up leveling roller and leveling roller down and slide for the support frame from top to bottom, the realization is to last leveling roller and the position adjustment of leveling roller centre gripping paper tape down, make it can be according to unwinding mechanism's the position of material book diameter size automatic adjustment paper tape, thereby roll up the core crookedness adjustment according to the paper tape and level the range, thereby avoid the cross cutting platform to lead to shutting down because of the great card paper of core crookedness is rolled up to the paper.

Drawings

Fig. 1 is a schematic structural view of an automatic leveling mechanism according to an embodiment of the present invention;

FIG. 2 is a schematic view of the upper and lower leveling rollers of the present invention holding a paper tape;

FIG. 3 is a schematic diagram of an application of an automatic leveling mechanism according to an embodiment of the present invention;

in the figure, 100, an automatic leveling mechanism;

1. an upper leveling roller; 2. a lower leveling roller; 3. a sliding seat; 4. a support frame; 5. a drive device; 51. a drive motor; 52. a transmission rod; 53. driving the screw rod; 6. a paper strap; 7. a supporting seat;

200. an unwinding mechanism; 300. a first guide roller; 400. a second guide roller.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1 and 2, an automatic leveling mechanism according to a preferred embodiment of the present invention includes an upper leveling roller 1, a lower leveling roller 2, a sliding seat 3, a supporting frame 4, a driving device 5 and a control device, wherein the upper leveling roller 1 and the lower leveling roller 2 are arranged opposite to each other in a vertical direction to clamp a paper tape 6 and level the paper tape 6; preferably, the diameters of the upper leveling roller 1 and the lower leveling roller 2 are smaller, so that the wrap angle of the paper belt 6 is smaller when the paper belt is leveled, and a better leveling effect is realized; the utility model discloses a paper tape clamping device, including support frame 4, last leveling roller 2, drive arrangement 5 is connected, in order to control drive arrangement 5 drives sliding seat 3 slides from top to bottom for support frame 4, and, sliding seat 3 is gliding simultaneously, sliding seat 3 can drive last leveling roller 1 and lower leveling roller 2 synchronous motion of installing on it, thereby adjusts last leveling roller 1 with the position of leveling roller 2 down, the position of adjustment centre gripping paper tape 6, the both sides of support frame 4 are provided with a sliding seat 3 respectively, go up the one end of leveling roller 1 with the one end of leveling roller 2 is all installed on one of them sliding seat 3 down, drive arrangement 5 with drive arrangement 5 electricity is connected.

The utility model discloses can be according to the position of the last leveling roller 1 of the diameter size adjustment of unreeling of paper tape unwinding mechanism 200 and leveling roller 2 down, adjust the position of centre gripping paper tape 6 to according to unreeling the diameter size and changing the level and smooth range to paper tape 6, accomplish the level and smooth work to the deformation of the 6 crookedness of paper tape, thereby avoid rolling up the great card paper of crookedness and lead to shutting down because of the paper in the cross cutting platform.

In an alternative embodiment, the driving device 5 includes a driving motor 51, a transmission rod 52 and two driving screws 53, the driving motor 51 is connected to the transmission rod 52 to drive the transmission rod 52 to rotate, the transmission rod 52 is provided with two gears, one of the gears is disposed at an end of the transmission rod 52, the other gear is disposed near the other end of the transmission rod 52, the other end of the transmission rod 52 is used for connecting with a motor shaft of the driving motor 51, one end of the driving screw 53 is engaged with one of the gears of the transmission rod 52, and the other end of the driving screw 53 is in threaded connection with one of the sliding seats 3. Each sliding seat 3 is connected with a driving screw 53, so that the driving screw 53 can drive the corresponding sliding seat 3 to slide, the sliding seats 3 on two sides of the supporting frame 4 can slide, and the upper leveling roller 1 and the lower leveling roller 2 which are arranged between the two sliding seats 3 can be driven to move up and down. Preferably, the gear is a sector gear.

Further, the driving motor 51 is electrically connected to a control device, and the control device controls the driving motor 51 to operate, so as to control the up-and-down movement of the sliding seat 3. Specifically, the control device controls the forward and reverse operations of the driving motor 51, and controls the slide holder 3 to move upward or downward. For example, when the control device controls the driving motor 51 to operate in the forward direction, the driving screw 53 is driven to rotate by the transmission rod 52 and the corresponding sector gear, and the sliding seat 3 is driven to move upwards by the driving screw 53; when the control device controls the driving motor 51 to run reversely, the driving screw 53 is driven to rotate by the transmission rod 52 and the corresponding sector gear, and the sliding seat 3 is driven to move downwards by the driving screw 53.

It should be noted that, according to the actual leveling requirement for the paper tape 6, the control device can control the sliding seat 3 to move upward in a single direction or move downward in a single direction, and when the diameter of the material roll of the unwinding mechanism 200 changes, the sliding seat 3 is controlled to return quickly; for example, in the present embodiment, when the diameter of the material roll of the unwinding mechanism 200 is decreased from large to small, the control device controls the sliding seat 3 to move downward, so as to increase the leveling amplitude of the upper leveling roller 1 and the lower leveling roller 2 to the material roll paper tape 6; when the unwinding mechanism 200 switches the material roll, the control device controls the sliding seat 3 to return quickly, and when the diameter of the material roll of the unwinding mechanism 200 is reduced from large to small again, the sliding seat 3 is controlled to move downwards again. In other embodiments, the control device can control the sliding seat 3 to move in two directions, and control the sliding seat to move upwards to the top and then move from the top to the bottom according to requirements.

Preferably, a through hole is formed in the sliding seat 3, an internal thread is formed in the through hole, an external thread matched with the internal thread is formed at one end of the driving screw rod 53, and one end of the driving screw rod 53, provided with the external thread, is inserted into the through hole. Wherein the axis of the through hole is coaxially arranged with the central axis of the driving screw 53. The other end of the driving screw 53 is provided with a thread matched with the gear teeth of the sector gear, so that the driving screw 53 is meshed with the sector gear, and the sector gear can drive the driving screw 53 to rotate.

Preferably, the central axis of the transmission rod 52 is perpendicular to the central axis of the driving screw 53.

In an alternative embodiment, the driving screw 53 is vertically disposed, the transmission rod 52 is horizontally disposed, the upper leveling roller 1 and the lower leveling roller 2 are both horizontally disposed, the sliding seat 3 is vertically disposed, and the sliding seat 3 is coaxially mounted with the driving screw 53.

In an alternative embodiment, the supporting frame 4 is provided with a sliding rail, the sliding seat 3 is mounted on the sliding rail, and the sliding seat 3 is slidable along the sliding rail.

It should be noted that, the utility model discloses in, sliding seat 3 not only can realize through the structural style of sliding seat 3 with the slide rail for the slip of support frame 4, can also be the structural style of sliding seat 3 and spout etc. only need to make sliding seat 3 can slide from top to bottom for support frame 4, the realization to the adjustment of 3 high positions of sliding seat can.

Since the diameters of the upper and

lower leveling rolls

1 and 2 are small, the strength thereof is low. Preferably, the circumference of the upper levelling roll 1 is provided with one or more supporting seats 7 to support the upper levelling roll 1; the circumference of the lower leveling roll 2 is provided with one or more support seats 7 to support the lower leveling roll 2. The support seat 7 can support the upper leveling roller 1 and the lower leveling roller 2 in strength. Further, preferably, a plurality of the supporting seats 7 are arranged at intervals along the axis of the upper leveling roller 1; a plurality of the supporting seats 7 are arranged at intervals along the axis of the lower leveling roller 2.

As shown in FIG. 3, automatic levelling mechanism is applied to in the web concora crush cross cutting mechanism for carry paper tape 6 to the cross cutting platform and carry out the level and smooth work to paper tape 6 before the cross cutting is handled.

It should be noted that fig. 3 only shows some parts of the die-cutting mechanism, including an unwinding mechanism 200, a first guide roller 300 and a second guide roller 400, wherein the unwinding mechanism 200 is configured to provide the paper tape 6, the first guide roller 300 is disposed in front of the automatic leveling mechanism 100 and is configured to guide and convey the paper tape 6 of the unwinding mechanism 200 to the automatic leveling mechanism 100, and the second guide roller 400 is disposed behind the automatic leveling mechanism 100 and is configured to guide and convey the paper tape 6 leveled by the automatic leveling mechanism 100 to a subsequent die-cutting processing mechanism for further subsequent processing.

It should be noted that the unwinding mechanism 200 may be a double-station unwinding device, and when the unwinding mechanism 200 switches the material roll between two stations, the sliding seat 3 is controlled to return quickly.

It should be noted that, in the present invention, the following processes of the other components of the die cutting mechanism and the paper tape 6 leveled by the automatic leveling mechanism 100 are not described in detail.

In the following, the application of the automatic leveling mechanism 100 in the flat-pressing die cutting mechanism is described as an example, and the working process thereof is as follows:

the paper tape 6 warp unwinding mechanism 200 expandes to after the direction transmission of first deflector roll 300, get into between last levelling roll 1 and the lower levelling roll 2 in the automatic levelling mechanism 100, utilize automatic levelling mechanism 100 levels paper tape 6. Along with the diameter of the material loading roll of the unreeling mechanism 200 is from large to small, the sliding seat 3 is controlled to drive the upper leveling roll 1 and the lower leveling roll 2 to move downwards, so that the position of the paper tape 6 between the upper leveling roll 1 and the lower leveling roll 2 is adjusted, the leveling amplitude of the paper tape 6 is increased, and the excessive bending deformation of the paper tape 6 is avoided. Specifically, when the diameter of the material roll of the unwinding mechanism 200 is large, the bending degree of the paper tape is small, the required leveling amplitude is small, the positions of the corresponding upper leveling roller 1 and the lower leveling roller 2 for clamping the paper tape are high, and the length of the paper tape between the automatic leveling mechanism 100 and the unwinding mechanism 200 is small, so that the leveling amplitude of the paper tape is small; when the diameter of the material roll of the unwinding mechanism 200 is small, the bending degree of the paper tape is large, the required leveling amplitude is large, the positions of the upper leveling roller 1 and the lower leveling roller 2 for clamping the paper tape are low correspondingly, and the length of the paper tape between the automatic leveling mechanism 100 and the unwinding mechanism 200 is large, so that the leveling amplitude of the paper tape is large.

To sum up, the embodiment of the utility model provides an automatic leveling mechanism 100, it levels work to paper tape 6 through last leveling roller 1 and lower leveling roller 2 that sets up, it slides from top to bottom for support frame 4 with lower leveling roller 2 to drive through the sliding seat 3 that sets up leveling roller 1, the realization is to the position adjustment of last leveling roller 1 and lower leveling roller 2 centre gripping paper tape 6, make it can be according to the position of the material roll diameter size automatic adjustment paper tape 6 of unwinding mechanism 200, thereby roll up core crookedness adjustment leveling amplitude according to the paper tape, thereby avoid the cross cutting platform to lead to shutting down because of the great card paper of core crookedness is rolled up to the paper.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. An automatic levelling mechanism, comprising:

an upper leveling roller, a lower leveling roller, a sliding seat, a supporting frame, a driving device and a control device,

the upper leveling roller and the lower leveling roller are arranged oppositely up and down to clamp the paper tape; the two sides of the support frame are respectively provided with a sliding seat, one end of the upper leveling roller and one end of the lower leveling roller are both installed on one sliding seat, the other end of the upper leveling roller and the other end of the lower leveling roller are both installed on the other sliding seat, the driving device is connected with the sliding seats, and the control device is electrically connected with the driving device to control the driving device to drive the sliding seats to slide up and down relative to the support frame.

2. The automatic leveling mechanism according to claim 1, wherein the driving device comprises a driving motor, a transmission rod and two driving screws, the driving motor is connected with the transmission rod to drive the transmission rod to rotate, two gears are arranged on the transmission rod, one end of each driving screw is meshed with one gear of the transmission rod, and the other end of each driving screw is in threaded connection with one sliding seat.

3. The automatic leveling mechanism according to claim 2, wherein a through hole is provided in the sliding seat, an internal thread is provided in the through hole, an external thread matching the internal thread is provided at one end of the driving screw rod, and the end of the driving screw rod provided with the external thread is inserted into the through hole.

4. The automatic grading mechanism according to claim 2, wherein the gear is a sector gear.

5. The automatic grading mechanism according to claim 2, wherein the central axis of the drive rod is perpendicular to the central axis of the drive screw.

6. The automatic leveling mechanism of claim 1, wherein the support frame is provided with a slide rail, and the sliding seat is mounted on the slide rail and slidable along the slide rail.

7. The automatic leveling mechanism of claim 1, wherein the upper leveling roller is circumferentially provided with one or more support seats; one or more supporting seats are arranged on the circumference of the lower leveling roller.

8. The automatic leveling mechanism of claim 7 wherein a plurality of the support pedestals are spaced along the axis of the upper leveling roll; and the supporting seats are arranged at intervals along the axis of the lower leveling roller.