CN211393263U

CN211393263U - Rubber sheet tensioning device for a blanket cylinder of a printing press

Info

Publication number: CN211393263U
Application number: CN201922340314.7U
Authority: CN
Inventors: 梁振武
Original assignee: Henan Shiji Tiantai Printing Co ltd
Current assignee: Henan Shiji Tiantai Printing Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-09-01
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a blanket straining device of blanket cylinder of printing machine, including the base, weld one-level support and second grade support on the base respectively, and one-level support is located between two second grade supports, and the bolt is connected with servo motor in the one-level support, and corresponds in the one-level support both sides and rotate and be provided with the pivot, and servo motor output and two pivots are served and are served fixed cover respectively and be equipped with matched with one-level gear and second grade gear, all rotate in two second grade supports and be provided with ball. The utility model discloses a set up the rotatory pivot of servo motor drive in the one-level support, set up the ball that is connected with nut and crane in two second grade supports that correspond, through the meshing transmission between one-level gear and second grade gear, tertiary gear and the level four gear for but vertical migration's crane drives two support rolls and carries out the high position adjustment, thereby the messenger is located the rubber cloth that compresses tightly on roller and the support roll and is in the state of straining all the time.

Description

Rubber sheet tensioning device for a blanket cylinder of a printing press

Technical Field

The utility model relates to a blanket processing technology field especially relates to blanket straining device of blanket cylinder of printing machine.

Background

Due to the continuous improvement of industrialization degree, especially the improvement of industrialization technology, the rubber products produced by the prior art have higher and higher structural performance. The rubber blanket is used as one of the most common and commonly used raw materials in rubber products, and has a very wide function.

In the in-process of carrying out the deep-processing to the blanket material, its initial size is great, need adopt cylinder class structure to move about to it and transport, but blanket self structure is light and soft, and has great toughness, receive external force action and easily take place deformation in the transportation, lead to the length grow, under this condition, traditional cylinder transport mechanism lacks corresponding counter-measure, make the blanket after the elongation very easily take place the accident of folding coincidence on cylinder transport mechanism, not only can cause the pollution waste of blanket material resource, also very easily lead to the machine to damage because the winding of blanket on the cylinder.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the rubber cloth is difficult to be tensioned and supported in the prior art, and providing a rubber cloth tensioning device of a rubber cylinder of a printing machine.

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

a rubber cloth tensioning device of a rubber cylinder of a printing machine comprises a base, a primary support and a secondary support are respectively welded on the base, the primary bracket is positioned between the two secondary brackets, a servo motor is connected with the inner bolt of the primary bracket, rotating shafts are correspondingly and rotatably arranged in the two sides of the primary support, a primary gear and a secondary gear which are matched with each other are respectively and fixedly sleeved on the output end of the servo motor and one end of the two rotating shafts, ball screws are rotatably arranged in the two secondary supports, and the other end of the rotating shaft and the lower end of the ball screw are respectively and fixedly sleeved with a third-stage gear and a fourth-stage gear which are matched with each other, the two ball screws are both in threaded connection with nuts, and the upper ends of the two secondary brackets are respectively provided with a limiting hole, one side of each of the two nuts is welded with a lifting frame which respectively penetrates through the two limiting holes in a sliding way, and the first-stage support and the two lifting frames are respectively rotatably provided with a pressing roller and a supporting roller.

Preferably, the primary support is a frame structure, and the two secondary supports are F-shaped structures.

Preferably, the first-stage support is located in the middle of the base, and the two second-stage supports are located on two sides of the base respectively.

Preferably, the two rotating shafts are horizontally arranged, and the primary gear and the two secondary gears are bevel gears in rotating meshed connection.

Preferably, the two ball screws are vertically arranged, and the two third-stage gears and the two fourth-stage gears are bevel gears which are respectively in rotating meshed connection.

Preferably, the pressing roller is located below between the two support rollers.

Compared with the prior art, the utility model discloses possess following advantage:

1. the utility model discloses set up one-level support and two second grade supports on the base respectively, correspond in the one-level support and set up two pivots by servo motor drive is rotatory to set up the ball that is connected with the nut perpendicularly in two second grade supports, utilize the synchronous revolution of one-level gear in order to realize two ball in the meshing transmission between second grade gear, tertiary gear and the level four gear, thereby realize reciprocating of nut.

2. The utility model discloses utilize the nut to support the crane that can reciprocate, compress tightly roller and support roll through setting up respectively on one-level support and two cranes to carry out the transportation of supporting jointly to the blanket, can utilize the crane to drive two support rolls according to the elasticity degree of blanket and carry out synchronous elevating movement, thereby ensure that the blanket is in the orderly state of tightening all the time.

To sum up, the utility model discloses a set up the rotatory pivot of servo motor drive in the one-level support, set up the ball that is connected with nut and crane in two second grade supports that correspond, through the meshing transmission between one-level gear and second grade gear, tertiary gear and the level four gear for but vertical migration's crane drives two support rolls and carries out the high position adjustment, thereby makes the blanket that is located on compressing tightly roller and the support roll be in the state of straining all the time.

Drawings

FIG. 1 is a schematic view of a blanket tensioning device for a blanket cylinder of a printing press according to the present invention;

FIG. 2 is an enlarged view of a portion A of a blanket tensioning device of a blanket cylinder of a printing press according to the present invention;

fig. 3 is a schematic diagram of a secondary support structure of a rubber blanket tensioning device of a blanket cylinder of a printing press according to the present invention.

In the figure: the automatic rolling machine comprises a base 1, a first-stage support 2, a second-stage support 3, a servo motor 4, a rotating shaft 5, a first-stage gear 6, a second-stage gear 7, a ball screw 8, a third-stage gear 9, a fourth-stage gear 10, a nut 11, a limiting hole 12, a lifting frame 13, a pressing roller 14 and a supporting roller 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a rubber blanket tensioning device of a blanket cylinder of a printing machine comprises a base 1, a primary support 2 and a secondary support 3 are welded on the base 1 respectively, the primary support 2 is positioned between the two secondary supports 3, a servo motor 4 is connected with a bolt in the primary support 2, the servo motor 4 can select a motor with the product model of HC-SFS202B, rotating shafts 5 are correspondingly and rotatably arranged in two sides of the primary support 2, specifically referring to the description of fig. 2, a primary gear 6 and a secondary gear 7 which are matched with each other are fixedly sleeved on the output end of the servo motor 4 and one end of each of the two rotating shafts 5 respectively, ball screws 8 are rotatably arranged in the two secondary supports 3, a tertiary gear 9 and a quaternary gear 10 which are matched with each other are fixedly sleeved on the other end of each rotating shaft 5 and the lower end of each ball screw 8, nuts 11 are connected on each of the two ball, spacing hole 12 is seted up perpendicularly, and two nuts 11 one side all welds the crane 13 that runs through two spacing holes 12 of sliding respectively, and crane 13 uses spacing hole 12 as the direction up-and-down motion, helps promoting crane 13 and the stability that support roll 15 reciprocated, rotates respectively on one-level support 2 and two cranes 13 and installs and compress tightly roller 14 and support roll 15.

One-level support 2 is frame structure, specifically refers to and explains attached 3, and two second grade supports 3 are F type structure, need to explain that all install the bearing in 2 both sides of one-level support and the lower extreme of second grade support 3 for pivot 5 provides rotatable stable support effect with ball 8.

The first-level support 2 is located in the middle of the base 1, and the two second-level supports 3 are located on two sides of the base 1 respectively.

The two rotating shafts 5 are horizontally arranged, and the primary gear 6 and the two secondary gears 7 are bevel gears which are in rotating meshed connection.

The two ball screws 8 are vertically arranged, and the two third-stage gears 9 and the two fourth-stage gears 10 are bevel gears which are respectively in rotating meshed connection.

The meshing transmission of the first-stage gear 6 and the second-stage gear 7, and the meshing transmission of the third-stage gear 9 and the fourth-stage gear 10 are utilized to enable the two ball screws 8 to synchronously move under the driving of the servo motor 4, so that the height positions of the two supporting rollers 15 are adjusted.

The pressing roller 14 is located below the two supporting rollers 15, so that the rubber blanket is movably installed by using the height difference between the supporting rollers 15 and the pressing roller 14.

The utility model discloses its functional principle is explained to following mode of operation of accessible:

with particular reference to the description of fig. 1, one end of the blanket is made to pass over seven of the support cylinders 15, then it is pulled to pass over the lower end of the pressure cylinder 14, and finally it is pulled to pass over the other support cylinder 15;

when the blanket slackens:

the servo point motor 4 is started, the output shaft of the servo motor 4 drives the two primary gears 6 to rotate, and the two secondary gears 7 rotate along with the primary gears 6 because the secondary gears 7 are rotatably meshed with the primary gears 6;

the rotating shafts 5 sleeved in the secondary gears 7 synchronously rotate and respectively drive the two tertiary gears 9 to rotate in the same direction, and the four-stage gear 10 is rotationally meshed with the tertiary gear 9, so that the two secondary gears 10 rotate along with the rotation;

the ball screw 8 sleeved in the four-stage gear 10 rotates synchronously, and the two nuts 11 move vertically upwards under the rotation drive of the ball screw 8;

two nuts 11 drive crane 13 and use spacing hole 12 as the direction upward movement to make two support roll 15 synchronous ascending, support the blanket with following both ends position, under two support roll 15's supporting role, the blanket is taut gradually.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A rubber cloth tensioning device of a blanket cylinder of a printing machine comprises a base (1) and is characterized in that a primary support (2) and a secondary support (3) are welded on the base (1) respectively, the primary support (2) is located between the two secondary supports (3), a servo motor (4) is in bolt connection with the primary support (2), rotating shafts (5) are correspondingly and rotatably arranged in two sides of the primary support (2), a primary gear (6) and a secondary gear (7) which are matched with each other are fixedly sleeved on the output end of the servo motor (4) and one end of the two rotating shafts (5) respectively, ball screws (8) are rotatably arranged in the two secondary supports (3), a tertiary gear (9) and a quaternary gear (10) which are matched with each other are fixedly sleeved on the other end of each rotating shaft (5) and the lower end of each ball screw (8), nuts (11) are in threaded connection with the two ball screws (8), and two second grade support (3) upper ends in all seted up spacing hole (12), two nut (11) one side all welds crane (13) that slide respectively and run through two spacing holes (12), rotate respectively on one-level support (2) and two crane (13) and install and compress tightly roller (14) and support roller (15).

2. The blanket tensioning device for a blanket cylinder of a printing press as claimed in claim 1, characterized in that the primary support (2) is of frame construction and the two secondary supports (3) are of F-shaped construction.

3. The blanket tensioning device for a blanket cylinder of a printing press as claimed in claim 2, characterized in that the primary support (2) is located in the middle of the base (1) and the two secondary supports (3) are located on either side of the base (1).

4. The blanket tensioning device for blanket cylinders of printing presses as claimed in claim 1, characterized in that the two shafts (5) are arranged horizontally and the primary gear (6) and the two secondary gears (7) are bevel gears in rotating meshing connection.

5. The blanket tensioning device for a blanket cylinder of a printing press as claimed in claim 1, characterized in that the two ball screws (8) are arranged vertically and the two tertiary gears (9) and the two quaternary gears (10) are bevel gears which are in each case connected in rotating engagement.

6. The blanket tensioning device for a blanket cylinder of a printing press as claimed in claim 1, characterized in that the pressure cylinder (14) is located below between two support cylinders (15).