CN215792429U - Printing machine version roller air shaft device that rises - Google Patents

Abstract

The application discloses printing machine version roller air shaft device, including unable adjustment base, first backup pad, second backup pad, physiosis axle body, rotation seat, motor power, first gear, second gear, fixed knot construct, location structure and prevent excursion structure, the inner chamber has been seted up to unable adjustment base's inside, the installation is provided with location structure in unable adjustment base's the inner chamber, all rotate on second backup pad and the first backup pad and be connected with and rotate the seat, two the equal fixed mounting in lateral wall department of rotating the seat is provided with fixed knot structure, unable adjustment base's upper surface department fixed mounting is provided with prevents the excursion structure. This application can be comparatively convenient interval between adjustment first backup pad and the second backup pad through location structure, and then can make this application use in the physiosis axle body of multiple different length for application range is more extensive, and this application has fixed knot to construct, can be comparatively convenient fix the both ends of physiosis axle body through fixed knot constructs.

Description

Printing machine version roller air shaft device that rises

Technical Field

The application relates to the field of printing machines, in particular to an air expansion shaft device of a printing machine roller.

Background

The printer is a machine that prints text and images. Modern printing presses typically consist of mechanisms for plating, inking, stamping, feeding (including folding), etc. 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 on the paper or other printing material (such as textile, metal plate, plastics, leather, wood plate, glass and ceramic) so as to reproduce the same printed matter as the printing plate. The invention and the development of the printing machine play an important role in the propagation of human civilization and culture.

The printing machine needs to use the physiosis axle device, and traditional physiosis axle device is fixed the back and is not convenient for lift the physiosis axle off, after the physiosis axle breaks down, is not convenient for carry out maintenance work, also is not convenient for install the physiosis axle of different models. Therefore, the air swelling shaft device of the printing machine roller is provided for solving the problems.

Disclosure of Invention

The pneumatic expansion shaft device for the printing machine roller is used for solving the problems that a common pneumatic expansion shaft device in the prior art is inconvenient to detach after being fixed, and the pneumatic expansion shaft is inconvenient to maintain after the pneumatic expansion shaft breaks down.

According to an aspect of the application, a printing machine version roller air shaft device is provided, including unable adjustment base, first backup pad, second backup pad, physiosis axle body, rotation seat, motor power, first gear, second gear, fixed knot construct, location structure and prevent excursion structure, the inner chamber has been seted up to unable adjustment base's inside, the installation is provided with location structure in unable adjustment base's the inner chamber, all rotate on second backup pad and the first backup pad and be connected with and rotate the seat, two the equal fixed mounting in lateral wall department of rotating the seat is provided with fixed knot and constructs, unable adjustment base's upper surface department fixed mounting is provided with prevents the excursion structure.

Further, location structure includes location slider, location slide, first servo motor and first threaded rod, it is provided with the location slider to slide in unable adjustment base's the inner chamber, unable adjustment base's upper surface department sliding connection has the location slide, fixed connection between location slider and the location slide, unable adjustment base's inner chamber one side department fixed mounting has first servo motor, the one end of the first threaded rod of output shaft end fixedly connected with of first servo motor, the other end of first threaded rod extend to unable adjustment base's inner chamber lateral wall department and with the unable adjustment base between rotate be connected, first threaded rod run through the location slider and with the location between the slider screw-thread fit.

Furthermore, the bottom end of the second supporting plate is fixedly connected with the upper surface of the fixed base, and the bottom end of the first supporting plate is fixedly connected with the upper surface of the positioning sliding plate.

Furthermore, a second gear is fixedly connected to one side of the rotating seat, a power motor is fixedly mounted on the second supporting plate, a first gear is fixedly connected to the tail end of an output shaft of the power motor, and the first gear and the second gear are meshed with each other.

Further, the fixed knot constructs including fixed cover, fixed column, grip block and fixed cylinder, fixed cover and one side department fixed connection who rotates the seat, the fixed cover slides and is provided with the fixed column, the one end department fixedly connected with fixed cylinder of fixed column, the other end of fixed cylinder extend to the inside wall department of fixed cover and with fixed cover between fixed connection, the central point of fixed column puts the department and has seted up the slot, the side department of fixed column rotates and is connected with the grip block.

Furthermore, the clamping blocks are a plurality of in total, and the clamping blocks are arranged on the side edges of the fixed columns at equal intervals.

Further, prevent excursion structure includes support frame, rectangle set casing, second servo motor, second threaded rod, removal slider, movable plate, limiting plate, first support column, second support column, supporting spring and compression roller, unable adjustment base's upper surface department fixedly connected with support frame's one end, the other end department fixedly connected with rectangle set casing of support frame, it is provided with the removal slider, two to all slide in the both sides inner chamber of rectangle set casing the one end of the equal fixedly connected with movable plate of lateral wall department of removal slider, the other end of movable plate runs through the inner chamber lateral wall of rectangle set casing and extends to outside the wall, the fixedly connected with limiting plate is located to the one end of movable plate.

Furthermore, a second servo motor is fixedly installed in the inner cavity of the rectangular fixed shell, one end of a second threaded rod is fixedly connected to the tail end of an output shaft of the second servo motor, the other end of the second threaded rod extends to the position of the inner cavity side wall of the rectangular fixed shell and is rotatably connected with the inner cavity side wall of the rectangular fixed shell, and the second threaded rod penetrates through the movable sliding block and is in threaded fit with the movable sliding block.

Further, the first support column of upper surface department fixedly connected with of rectangle set casing, the inner chamber has all been seted up to the inside of first support column and second support column, sliding fit between first support column and the second support column, the one end of fixedly connected with supporting spring is located to the inner wall of first support column, supporting spring's the other end extend to the inner chamber upper wall department of second support column and with the second support column between fixed connection, the top fixedly connected with compression roller of department of second support column.

Furthermore, the number of the first supporting columns and the number of the second supporting columns are three, and the first supporting columns and the second supporting columns are fixed between the pressing roller and the rectangular fixed shell.

Through the above-mentioned embodiment of this application, interval between adjustment first backup pad and the second backup pad that can be comparatively convenient through location structure, and then can make this application use in the physiosis axle body of multiple different length, make application range more extensive, this application has fixed knot to construct, can be comparatively convenient fix the both ends to the physiosis axle body through fixed knot to construct, fixed easy operation, make the physiosis axle body can comparatively convenient dismouting of carrying on fixed, the work such as maintenance change in the later stage of being convenient for, this application has the structure of preventing squinting, can be comparatively convenient carry on spacingly to the printing paper of fixing on the physiosis axle body through preventing the structure of squinting, can effectually avoid printing paper to squint when using, and is suitable for being generalized to use.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic perspective view of an embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of an embodiment of the present application;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 2 according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view of a fixing post according to an embodiment of the present application;

fig. 5 is a schematic perspective view of a pressure roller according to an embodiment of the present application.

In the figure: 1. the fixed base, 2, the location slider, 3, the location slide, 4, first servo motor, 5, first threaded rod, 6, first backup pad, 7, the second backup pad, 8, the seat that rotates, 9, fixed cover, 10, fixed column, 11, the grip block, 12, fixed cylinder, 13, the physiosis axle body, 14, the support frame, 15, the rectangle set casing, 16, second servo motor, 17, the second threaded rod, 18, the removal slider, 19, the movable plate, 20, the limiting plate, 21, first support column, 22, the second support column, 23, supporting spring, 24, the compression roller, 25, motor power, 26, first gear, 27, the second gear.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

The fixing structure in the present embodiment can be applied to various types of inflatable shafts, for example, the following inflatable shaft is provided in the present embodiment, and the fixing structure in the present embodiment can be used to fix the following inflatable shaft.

The inflatable shaft comprises a hollow main shaft, the left end face of the hollow main shaft is connected with an end cover through a positioning bolt, the left end face of the end cover is provided with a first connecting shaft, the outer side face of the first connecting shaft is provided with a key groove, the left end face of the first connecting shaft is provided with a second connecting shaft, the outer side face of the hollow main shaft is sequentially provided with a first connecting groove, a second connecting groove, a third connecting groove and a fourth connecting groove from left to right, mounting holes are formed in the first connecting shaft, the second connecting shaft and the end cover, the left end face of the second connecting shaft is provided with an inflation and deflation groove, a valve core is arranged in the inflation and deflation groove, the valve core is connected with a valve cap through connecting threads arranged on the outer side face of the valve core, an air bag is arranged in the hollow main shaft, the left end face of the air bag is provided with an air pipe, and the left end face of the air pipe passes through the mounting holes formed in the first connecting shaft, the second connecting shaft and the end cover and is connected with the right end face of the valve core, the left end face of the air bag is provided with a positioning ring, the left side face of the positioning ring is connected with the end cover through a stop block, the outer side face of the air bag is provided with an arc-shaped explosion-proof sheet, the outer side face of the arc-shaped explosion-proof sheet is sequentially provided with a first strip-shaped expansion key, a second strip-shaped expansion key, a third strip-shaped expansion key and a fourth strip-shaped expansion key which are correspondingly clamped with the first connecting groove, the second connecting groove, the third connecting groove and the fourth connecting groove from left to right, the number of the first connecting shaft and the second connecting shaft is two, the two first connecting shaft and the two second connecting shaft are symmetrically arranged at the left end and the right end of the hollow main shaft, the number of the first connecting groove, the second connecting groove, the third connecting groove and the fourth connecting groove is four, the four first connecting groove, the second connecting groove, the third connecting groove and the fourth connecting groove are evenly arranged around the outer side face of the hollow main shaft, the number of the arc-shaped explosion-proof sheet is four, and the four arc-shaped explosion-proof sheets are uniformly distributed around the outer side surface of the air bag.

Of course, the present embodiment can be used for other structures of the air inflation shaft. The following description will be made of the plate roller air swelling shaft device of the printing press according to the embodiment of the present application.

Referring to fig. 1-5, a printing press roller air-expanding shaft device includes a fixed base 1, a first support plate 6, a second support plate 7, an air-expanding shaft body 13, a rotating base 8, a power motor 25, a first gear 26, a second gear 27, a fixing structure, a positioning structure and an anti-shifting structure, wherein an inner cavity is formed in the fixed base 1, the positioning structure is installed in the inner cavity of the fixed base 1, the rotating base 8 is rotatably connected to the second support plate 7 and the first support plate 6, the fixing structure is fixedly installed on the side walls of the two rotating bases 8, the anti-shifting structure is fixedly installed on the upper surface of the fixed base 1, the air-expanding shaft device has the positioning structure, the distance between the first support plate 6 and the second support plate 7 can be conveniently adjusted through the positioning structure, and the air-expanding shaft body 13 with different lengths can be further used, make application range more extensive, this application has fixed knot to construct, can be comparatively convenient fix the both ends of physiosis axle body 13 through fixed knot to construct, fixed easy operation, make physiosis axle body 13 can be comparatively convenient carry out the dismouting fixed, the maintenance in the later stage of being convenient for work such as change, this application has prevents the skew structure, can be comparatively convenient carry on spacingly to the printing paper of physiosis axle body 13 through preventing the skew structure, can effectually avoid the printing paper to squint when using, and is suitable for being generalized to use.

The positioning structure comprises a positioning slide block 2, a positioning slide plate 3, a first servo motor 4 and a first threaded rod 5, a positioning slide block 2 is arranged in the inner cavity of the fixed base 1 in a sliding way, a positioning slide plate 3 is connected on the upper surface of the fixed base 1 in a sliding way, the positioning slide block 2 and the positioning slide plate 3 are fixedly connected, a first servo motor 4 is fixedly arranged at one side of the inner cavity of the fixed base 1, one end of a first threaded rod 5 is fixedly connected at the tail end of an output shaft of the first servo motor 4, the other end of the first threaded rod 5 extends to the side wall of the inner cavity of the fixed base 1 and is rotationally connected with the fixed base 1, the first threaded rod 5 penetrates through the positioning slide block 2 and is in threaded fit with the positioning slide block 2, the first threaded rod 5 can be driven to rotate by the operation of the first servo motor 4, and the positioning slide block 2 can be driven to move by the rotation of the first threaded rod 5; the bottom end of the second supporting plate 7 is fixedly connected with the upper surface of the fixed base 1, the bottom end of the first supporting plate 6 is fixedly connected with the upper surface of the positioning sliding plate 3, the first supporting plate 6 can be driven to move by the movement of the positioning sliding plate 3, and the distance between the second supporting plate 7 and the first supporting plate 6 is further adjusted; a second gear 27 is fixedly connected to one side of the rotating seat 8, a power motor 25 is fixedly mounted on the second supporting plate 7, a first gear 26 is fixedly connected to the tail end of an output shaft of the power motor 25, the first gear 26 and the second gear 27 are meshed with each other, the first gear 26 can be driven to rotate through the work of the power motor 25, the second gear 27 can be driven to rotate through the rotation of the first gear 26, and the inflatable shaft body 13 can be driven to rotate through the rotation of the second gear 27; the fixing structure comprises a fixing sleeve 9, a fixing column 10, a clamping block 11 and a fixing cylinder 12, the fixing sleeve 9 is fixedly connected with one side of a rotating seat 8, the fixing column 10 is arranged on the fixing sleeve 9 in a sliding mode, the fixing cylinder 12 is fixedly connected with one end of the fixing column 10, the other end of the fixing cylinder 12 extends to the inner side wall of the fixing sleeve 9 and is fixedly connected with the fixing sleeve 9, a slot is formed in the central position of the fixing column 10, the clamping block 11 is rotatably connected with the side edge of the fixing column 10, one end of an inflatable shaft body 13 is inserted into the slot of the fixing column 10, the fixing sleeve 9 can be driven to move through contraction of the fixing cylinder 12, the clamping block 11 can be driven to be tightly pressed and clamped on the inflatable shaft body 13 through movement of the fixing sleeve 9, the inflatable shaft body 13 is fixed, and when the inflatable shaft body 13 needs to be taken down, the fixed sleeve 9 can move by the extension of the fixed cylinder 12 and is separated from the clamping block 11, so that the inflatable shaft body 13 can be taken down from the fixed column 10, and the later maintenance and other work can be conveniently carried out; the clamping blocks 11 are arranged on the side edge of the fixing column 10 at equal intervals, and the inflatable shaft body 13 can be tightly pressed, clamped and fixed through the common clamping action of the clamping blocks 11; the anti-deviation structure comprises a support frame 14, a rectangular fixed shell 15, a second servo motor 16, a second threaded rod 17, a movable slider 18, a movable plate 19, a limiting plate 20, a first support column 21, a second support column 22, a support spring 23 and a press roller 24, one end of the support frame 14 is fixedly connected with the upper surface of the fixed base 1, the other end of the support frame 14 is fixedly connected with the rectangular fixed shell 15, the movable sliders 18 are arranged in inner cavities at two sides of the rectangular fixed shell 15 in a sliding mode, one ends of the movable plates 19 are fixedly connected with the side walls of the movable sliders 18, the other end of the movable plate 19 penetrates through the inner cavity side wall of the rectangular fixed shell 15 and extends to the outside of the inner cavity side wall, the limiting plate 20 is fixedly connected with one end of the movable plate 19, the movable plate 19 can be driven to move by the movement of the movable sliders 18, and the limiting plate 20 can be driven to move by the movement of the movable sliders 19, the distance between the two limiting plates 20 is further adjusted, and the printing paper can be limited by the limiting action of the two limiting plates 20, so that the offset is reduced; a second servo motor 16 is fixedly installed in the inner cavity of the rectangular fixed shell 15, one end of a second threaded rod 17 is fixedly connected to the tail end of an output shaft of the second servo motor 16, the other end of the second threaded rod 17 extends to the side wall of the inner cavity of the rectangular fixed shell 15 and is rotatably connected with the side wall of the inner cavity of the rectangular fixed shell 15, the second threaded rod 17 penetrates through the movable sliding block 18 and is in threaded fit with the movable sliding block 18, the second threaded rod 17 can be driven to rotate through the operation of the second servo motor 16, and the movable sliding block 18 can be driven to move through the rotation of the second threaded rod 17; the upper surface of the rectangular fixed shell 15 is fixedly connected with a first supporting column 21, inner cavities are formed in the first supporting column 21 and the second supporting column 22, the first supporting column 21 and the second supporting column 22 are in sliding fit, one end of a supporting spring 23 is fixedly connected to the inner wall of the first supporting column 21, the other end of the supporting spring 23 extends to the upper wall of the inner cavity of the second supporting column 22 and is fixedly connected with the second supporting column 22, a pressing roller 24 is fixedly connected to the top end of the second supporting column 22, the pressing roller 24 can be tightly abutted to the inflatable shaft body 13 through the elastic action of the supporting spring 23, and therefore the pressing effect on printing paper on the inflatable shaft body 13 can be achieved, looseness is reduced, and stability is improved; the number of the first supporting columns 21 and the number of the second supporting columns 22 are three, and the three first supporting columns 21 and the three second supporting columns 22 are fixed between the pressing roller 24 and the rectangular fixed shell 15.

This application is when using, firstly, this application can be fixed reelpipe etc. through physiosis axle body 13, need carry out during operation such as the change maintenance in later stage when compression roller 24, can be through the extension through fixed cylinder 12, make fixed cover 9 remove, separate with grip block 11, can take off physiosis axle body 13 from fixed column 10, be convenient for carry out work such as maintenance in later stage, work through motor power 25 can drive first gear 26 and rotate, rotation through first gear 26 can drive second gear 27 and rotate, rotation through second gear 27 can drive physiosis axle body 13 and rotate.

The application has the advantages that:

1. the inflatable shaft has the advantages that the structure is reasonable, the use is convenient, the positioning structure is arranged, the distance between the first supporting plate and the second supporting plate can be conveniently adjusted through the positioning structure, and further the inflatable shaft can be used for inflatable shaft bodies with different lengths, so that the application range is wider;

2. the inflatable shaft body fixing structure has the advantages that the fixing structure is adopted, two ends of the inflatable shaft body can be conveniently fixed, the fixing operation is simple, the inflatable shaft body can be conveniently disassembled, assembled and fixed, and the later maintenance, replacement and other work are facilitated;

3. this application has prevents skew structure, can be comparatively convenient carry on spacingly to the printing paper of fixing on the physiosis axle body through preventing the skew structure, can effectually avoid printing paper to skew when using, is fit for using widely.

It is well within the skill of those in the art to implement, without undue experimentation, the present application is not directed to software and process improvements, as they relate to circuits and electronic components and modules.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a printing machine version roller air shaft device which characterized in that: including unable adjustment base (1), first backup pad (6), second backup pad (7), physiosis axle body (13), rotate seat (8), motor power (25), first gear (26), second gear (27), fixed knot construct, location structure and prevent excursion structure, the inner chamber has been seted up to the inside of unable adjustment base (1), the installation is provided with location structure in the inner chamber of unable adjustment base (1), all rotate on second backup pad (7) and first backup pad (6) and be connected with and rotate seat (8), two the equal fixed mounting in lateral wall department of rotating seat (8) is provided with fixed knot and constructs, the upper surface department fixed mounting of unable adjustment base (1) is provided with prevents the excursion structure.

2. The printing press plate roller air-swelling shaft device according to claim 1, wherein: the positioning structure comprises a positioning slide block (2), a positioning slide plate (3), a first servo motor (4) and a first threaded rod (5), a positioning slide block (2) is arranged in the inner cavity of the fixed base (1) in a sliding way, a positioning slide plate (3) is connected on the upper surface of the fixed base (1) in a sliding way, the positioning slide block (2) and the positioning slide plate (3) are fixedly connected, a first servo motor (4) is fixedly arranged at one side of the inner cavity of the fixed base (1), the tail end of the output shaft of the first servo motor (4) is fixedly connected with one end of a first threaded rod (5), the other end of the first threaded rod (5) extends to the side wall of the inner cavity of the fixed base (1) and is rotationally connected with the fixed base (1), the first threaded rod (5) penetrates through the positioning sliding block (2) and is in threaded fit with the positioning sliding block (2).

3. The printing press plate roller air-swelling shaft device according to claim 1, wherein: the bottom end of the second supporting plate (7) is fixedly connected with the upper surface of the fixed base (1), and the bottom end of the first supporting plate (6) is fixedly connected with the upper surface of the positioning sliding plate (3).

4. The printing press plate roller air-swelling shaft device according to claim 1, wherein: a second gear (27) is fixedly connected to one side of the rotating seat (8), a power motor (25) is fixedly mounted on the second supporting plate (7), a first gear (26) is fixedly connected to the tail end of an output shaft of the power motor (25), and the first gear (26) and the second gear (27) are meshed with each other.

5. The printing press plate roller air-swelling shaft device according to claim 1, wherein: the fixing structure comprises a fixing sleeve (9), a fixing column (10), a clamping block (11) and a fixing cylinder (12), the fixing sleeve (9) is fixedly connected with one side of a rotating seat (8), the fixing column (10) is arranged on the fixing sleeve (9) in a sliding mode, the fixing cylinder (12) is fixedly connected with one end of the fixing column (10), the other end of the fixing cylinder (12) extends to the inner side wall of the fixing sleeve (9) and is fixedly connected with the fixing sleeve (9), a slot is formed in the center position of the fixing column (10), the clamping block (11) is rotatably connected with the side edge of the fixing column (10), and one end of an inflatable shaft body (13) is inserted into the slot of the fixing column (10).

6. The printing press plate roller air-swelling shaft device according to claim 5, wherein: the clamping blocks (11) are arranged on the side edge of the fixed column (10) in an equidistant mode, and the clamping blocks (11) are a plurality of in total.

7. The printing press plate roller air-swelling shaft device according to claim 1, wherein: the anti-deflection structure comprises a support frame (14), a rectangular fixed shell (15), a second servo motor (16), a second threaded rod (17), a movable slider (18), a movable plate (19), a limiting plate (20), a first support column (21), a second support column (22), a support spring (23) and a press roller (24), one end of a supporting frame (14) is fixedly connected with the upper surface of the fixed base (1), the other end of the supporting frame (14) is fixedly connected with a rectangular fixed shell (15), the inner cavities at the two sides of the rectangular fixed shell (15) are respectively provided with a movable sliding block (18) in a sliding way, the side walls of the two movable sliding blocks (18) are respectively fixedly connected with one end of a movable plate (19), the other end of the moving plate (19) penetrates through the side wall of the inner cavity of the rectangular fixed shell (15) and extends out of the inner cavity, one end of the moving plate (19) is fixedly connected with a limiting plate (20).

8. The printing press plate roller air-swelling shaft device according to claim 7, wherein: the fixed mounting has second servo motor (16) in the inner chamber of rectangle set casing (15), the one end of the output shaft terminal fixedly connected with second threaded rod (17) of second servo motor (16), the other end of second threaded rod (17) extend to the inner chamber lateral wall department of rectangle set casing (15) and with the rectangle set casing (15) between the inner chamber lateral wall rotate be connected, second threaded rod (17) run through remove slider (18) and with remove between the slider (18) screw-thread fit.

9. The printing press plate roller air-swelling shaft device according to claim 7, wherein: the upper surface department fixedly connected with of rectangle set casing (15) first support column (21), the inner chamber has all been seted up to the inside of first support column (21) and second support column (22), sliding fit between first support column (21) and second support column (22), the one end of fixedly connected with supporting spring (23) is located to the inner wall of first support column (21), the other end of supporting spring (23) extend to the inner chamber upper wall department of second support column (22) and with second support column (22) between fixed connection, fixedly connected with compression roller (24) is located on the top of second support column (22).

10. The printing press plate roller air-swelling shaft device according to claim 7, wherein: the number of the first supporting columns (21) and the number of the second supporting columns (22) are three, and the first supporting columns (21) and the second supporting columns (22) are fixed between the pressing roller (24) and the rectangular fixed shell (15).

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