CN220555272U - Gravure press - Google Patents

Abstract

The utility model belongs to the technical field of printing equipment, and particularly discloses an intaglio printing press, which comprises: the device comprises a frame, a plate cylinder, two split couplings, two mounting bearings and a driving device; the two mounting bearings are respectively positioned at two sides of the plate cylinder in the length direction, the middle parts of the two mounting bearings are connected with rotatable rotating shafts, and two ends of the plate cylinder are respectively coaxially connected with the rotating shafts through two separate couplings; the drive is located on the side of the mounting bearing facing away from the plate cylinder. The plate cylinder is connected with the rotating shaft through two separate couplings, the rotating shaft is arranged on the frame through two mounting bearings, and when the driving device drives the rotating shaft to rotate, the plate cylinder can be driven to rotate; that is, the gear is not required for mounting the plate cylinder, so that the condition that the fluctuation of the plate cylinder is large and the printing quality is poor due to abrasion of the gear or poor fit of the gear and the coupler is avoided, and the printing stability is improved.

Description

Gravure press

Technical Field

The utility model relates to the technical field of printing equipment, in particular to a gravure printing machine.

Background

At present, in the high-speed running process of the intaglio printing press, the stability of the intaglio cylinder plays a crucial role in intaglio printing precision. In general, factors that cause the fluctuation of the intaglio cylinder are: (1) the diameter of the gravure cylinder itself is dispersed or eccentric; (2) problem of installation of gravure cylinder: the bearing is not fastened, the intaglio roller gear is not fastened, the matching degree of the intaglio roller gear and the coupling is poor, and the bearing or the intaglio roller gear is worn after long-term use. When different patterns or characters need to be printed, different printing cylinders need to be replaced according to the printing content, and when the printing cylinders are replaced, the conditions of poor matching degree of the intaglio roller gear and the coupler and long-term use abrasion of the intaglio roller gear easily occur, so that the intaglio roller fluctuation of the printing machine is large when the printing machine prints, and the printing quality is poor.

Disclosure of Invention

The purpose of the utility model is that: the intaglio printing press is provided to solve the technical problems of large fluctuation of the intaglio cylinder and poor printing quality caused by long-term use abrasion of the intaglio cylinder gear due to poor matching degree of the intaglio cylinder gear and the coupling in the prior art.

In order to achieve the above object, the present utility model provides an intaglio printing press comprising: the device comprises a frame, a plate cylinder, two split couplings, two mounting bearings and a driving device; the two mounting bearings are respectively positioned at two sides of the plate cylinder in the length direction, the two mounting bearings are fixed on the frame, the middle parts of the two mounting bearings are connected with rotatable rotating shafts, and two ends of the plate cylinder are respectively coaxially connected with the rotating shafts through two separation couplings; the driving device is positioned on one side of the mounting bearing, which is away from the plate cylinder, and is used for driving the rotating shaft to rotate.

Preferably, both ends of the plate cylinder are provided with coaxially arranged rolling shafts, and the rolling shafts are coaxially connected with the rotating shaft through the split type coupling.

Preferably, the drive device has a drive shaft, which is connected coaxially with the rotation shaft.

Preferably, the rotary shaft has an extension extending in the direction of the drive device, which extension is connected coaxially to the drive shaft.

Preferably, the method further comprises: an elastic coupling; the extension section is connected with the rotating shaft through the elastic coupling.

Preferably, the driving device is a driving motor.

Preferably, the outer side of the plate cylinder has a printing area.

Preferably, the printing area surrounds the outer side of the plate cylinder.

Preferably, the method further comprises: an impression cylinder; the impression cylinder is located above the plate cylinder.

Preferably, the split coupling is a split stainless steel coupling.

The intaglio printing press provided by the utility model has the beneficial effects that: the plate cylinder is connected with the rotating shaft through two separate couplings, the rotating shaft is arranged on the frame through two mounting bearings, namely, the rotating shaft is coaxially connected with the plate cylinder, and when the driving device drives the rotating shaft to rotate, the plate cylinder can be driven to rotate, so that the purpose of driving the plate cylinder to rotate is achieved; that is, the gear is not required for mounting the plate cylinder, so that the condition that the fluctuation of the plate cylinder is large and the printing quality is poor due to abrasion of the gear or poor fit of the gear and the coupler is avoided, and the printing stability is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic structural view of a gravure printing machine according to an embodiment of the present utility model.

100, a rack; 200. a plate cylinder; 210. a rolling shaft; 220. a printing area; 300. a split coupling; 400. mounting a bearing; 410. a rotating shaft; 411. an extension section; 500. a driving device; 510. a drive shaft; 600. an elastic coupling; 700. an impression cylinder.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 together, an intaglio printing press according to an embodiment of the present utility model will now be described.

As shown in fig. 1, the intaglio printing press according to an embodiment of the present utility model includes: a frame 100, a plate cylinder 200, two split couplings 300, two mounting bearings 400, a drive 500; the two mounting bearings 400 are respectively positioned at two sides of the plate cylinder 200 in the length direction, the two mounting bearings 400 are fixed on the frame 100, the middle parts of the two mounting bearings 400 are connected with a rotatable rotating shaft 410, and two ends of the plate cylinder 200 are respectively coaxially connected with the rotating shaft 410 through two separation couplings 300; the driving device 500 is located at a side of the mounting bearing 400 facing away from the plate cylinder 200, and the driving device 500 is used to drive the rotation shaft 410 to rotate.

The plate cylinder 200 is connected with the rotation shaft 410 through two separate couplings 300, the rotation shaft 410 is installed on the frame 100 through two installation bearings 400, namely, the rotation shaft 410 is coaxially connected with the plate cylinder 200, when the driving device 500 drives the rotation shaft 410 to rotate, the plate cylinder 200 can be driven to rotate, and the purpose of driving the plate cylinder 200 to rotate is achieved; that is, the gear is not required for mounting the plate cylinder 200, so that the condition that the plate cylinder 200 fluctuates greatly due to gear abrasion or poor fit of the gear and the coupler does not occur, and the printing stability is improved; when it is necessary to replace the plate cylinder 200, the plate cylinder 200 may be removed by simply separating the plate cylinder 200 from the rotation shaft 410 by the two separate couplings 300, and then installing the additional plate cylinder 200 on the rotation shaft 410, thereby completing the replacement of the plate cylinder 200.

In some embodiments of the utility model, both ends of the plate cylinder 200 have a coaxially disposed roll axis 210, the roll axis 210 being coaxially coupled to the rotation axis 410 via the split coupling 300. The rolling shafts 210 extend beyond both ends of the plate cylinder 200 to extend the length of the plate cylinder 200, and are conveniently coupled to the rotation shaft 410 through the separate coupler 300. It should be noted that, the split coupling 300 is a common split stainless steel coupling in the market, and is a prior art, and will not be described herein.

In some embodiments of the utility model, the drive device 500 has a drive shaft 510, the drive shaft 510 being coaxially coupled with the rotational shaft 410. The driving device 500 is a driving motor, the driving shaft 510 is a motor shaft, and the motor shaft is coaxially connected with the rotation shaft 410, and can directly provide power to the rotation shaft 410 to drive the rotation shaft 410 and the plate cylinder 200 to rotate.

In addition to the above, in order to facilitate connection of the driving shaft 510 to the rotation shaft 410, the rotation shaft 410 has an extension 411 extending toward the driving device 500, and the extension 411 is coaxially connected to the driving shaft 510. The extension 411 is an extension of the rotation shaft 410, so that the rotation shaft 410 is conveniently connected with the driving shaft 510 by a sufficient length, and the extension of the driving shaft 510 can be connected with the rotation shaft 410 through the elastic coupling 600, so that the extension of the driving shaft 510 is ensured to be coaxially connected with the driving shaft 510, and the driving device 500 is conveniently used for transmitting power to the plate cylinder 200.

In some embodiments of the utility model, the outer side of the plate cylinder 200 has a print zone 220. The printing area 220 has a print pattern thereon for printing, which provides the basis for intaglio printing. The plate cylinder 200 has a cylindrical shape, and the printing area 220 surrounds the outer side surface of the plate cylinder 200, i.e., a printing pattern can be printed on a printing object while the plate cylinder 200 is rotating.

In some embodiments of the utility model, further comprising: an impression cylinder 700; the impression cylinder 700 is located above the plate cylinder 200. The printed object of the intaglio printing press is a cast film sheet located between the impression cylinder 700 and the plate cylinder 200; the impression cylinder 700 is used to press the casting film against the plate cylinder 200 so that the print pattern of the plate cylinder 200 contacts the casting film so that the plate cylinder 200 prints the print pattern on the casting film when rotated.

In summary, the plate cylinder 200 of the intaglio printing press of this embodiment is connected to the rotation shaft 410 through two separate couplings 300, the rotation shaft 410 is mounted on the frame 100 through two mounting bearings 400, that is, the rotation shaft 410 is coaxially connected to the plate cylinder 200, and when the driving device 500 drives the rotation shaft 410 to rotate, the plate cylinder 200 can be driven to rotate, so as to achieve the purpose of driving the plate cylinder 200 to rotate; that is, the gear is not required for mounting the plate cylinder 200, so that the condition that the plate cylinder 200 fluctuates greatly due to gear abrasion or poor fit of the gear and the coupler does not occur, and the printing stability is improved; when it is necessary to replace the plate cylinder 200, the plate cylinder 200 may be removed by simply separating the plate cylinder 200 from the rotation shaft 410 by the two separate couplings 300, and then installing the additional plate cylinder 200 on the rotation shaft 410, thereby completing the replacement of the plate cylinder 200.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and substitutions can be made by those skilled in the art without departing from the technical principles of the present utility model, and these modifications and substitutions should also be considered as being within the scope of the present utility model.

Claims (10)

1. An intaglio printing press, comprising: the device comprises a frame, a plate cylinder, two split couplings, two mounting bearings and a driving device; the two mounting bearings are respectively positioned at two sides of the plate cylinder in the length direction, the two mounting bearings are fixed on the frame, the middle parts of the two mounting bearings are connected with rotatable rotating shafts, and two ends of the plate cylinder are respectively coaxially connected with the rotating shafts through two separation couplings; the driving device is positioned on one side of the mounting bearing, which is away from the plate cylinder, and is used for driving the rotating shaft to rotate.

2. Intaglio printing press according to claim 1, characterized in that both ends of said plate cylinder have coaxially arranged roll shafts which are coaxially connected with said rotational shaft via said split coupling.

3. Intaglio printing press according to claim 1, wherein said drive means have a drive shaft coaxially connected with said rotation shaft.

4. A gravure printing machine according to claim 3, wherein the rotating shaft has an extension extending in the direction of the drive means, which extension is connected coaxially with the drive shaft.

5. The intaglio printing press according to claim 4, further comprising: an elastic coupling; the extension section is connected with the rotating shaft through the elastic coupling.

6. Intaglio printing press according to claim 5, wherein said driving means are driving motors.

7. The intaglio printing press according to claim 1, wherein an outer side of said plate cylinder has a printing area.

8. The intaglio printing press according to claim 7, wherein said printing areas surround the outer side of said plate cylinder.

9. The intaglio printing press according to claim 1, further comprising: an impression cylinder; the impression cylinder is located above the plate cylinder.

10. Intaglio printing press according to claim 1, wherein said split coupling is a split stainless steel coupling.