Transverse plate adjusting mechanism of printing machine

Abstract

The transverse plate adjusting mechanism comprises a movable ejecting shaft, a fixed ejecting shaft and a printing plate roller, inserting grooves are formed in the two ends of the printing plate roller respectively, the movable ejecting shaft can stretch out and draw back transversely, the end of the movable ejecting shaft is ejected into or withdrawn from the inserting groove in one end of the printing plate roller, and the fixed ejecting shaft stretches out through a spring and is inserted into the inserting groove in one end of the printing plate roller. Rotation of the movable top shaft is driven by a first motor, transverse stretching of the movable top shaft is driven by a screw, and rotation of the screw is driven by a second motor. Due to the fact that one side of the printing plate roller is always in stress contact with the fixed jacking shaft through the spring, the movable jacking shaft drives the lead screw to conduct threaded transmission through the second motor to enable the lead screw to stretch out and draw back transversely and drive the printing plate roller to conduct transverse position adjustment, the technical effect that adjustment is convenient and reliable is achieved, and therefore work efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a component on a gravure printing machine, in particular to a transverse plate adjustment mechanism of the printing machine. Background Art

[0002] The plate roller of the gravure printing machine is usually in direct contact with the image printing material, so before the plate roller comes out of the ink box and contacts the printing material, it must be scraped off with a scraper. The ink on the roller surface is then transferred to the substrate through the pressure of the embossing roller, the printing material and the capillary action.

[0003] A gravure printing machine is usually a roller printing machine, which uses continuous printing on a roller. Therefore, the stability of the plate roller determines the quality of image printing. In order to facilitate disassembly, one end of the plate roller is connected by a convex-concave plug-in transmission connection through a laterally retractable movable top shaft, and the other end is connected by a convex-concave plug-in transmission connection through a fixed top shaft. The fixed top shaft is basically stationary. When replacing plate rollers of different lengths, it is also necessary to adjust the lateral position of the replaced plate roller. In this way, the fixed top shaft needs to be adjusted laterally, which is troublesome to operate and greatly affects the production progress. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide a lateral plate adjustment mechanism which is easy to adjust and reliable, so as to improve work efficiency.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lateral plate adjustment mechanism of a printing press, comprising a movable ejector shaft, a fixed ejector shaft and a plate roller, slots are respectively arranged at both ends of the plate roller, the movable ejector shaft can be laterally extended and retracted, the end of the movable ejector shaft is pushed into or withdrawn from the slot at one end of the plate roller, the fixed ejector shaft is extended through a spring and inserted into the slot at one end of the plate roller, the rotation of the movable ejector shaft is driven by a first motor, the lateral extension and retraction of the movable ejector shaft is driven by a screw, and the rotation of the screw is driven by a second motor.

[0006] A connecting seat is provided corresponding to the moving top shaft, the connecting seat is provided with a guide rail arranged along its length direction, a slide seat sliding along the guide rail is arranged on the guide rail, a transmission box is provided on the slide seat, the first motor is installed on one side of the transmission box, a telescopic tube is connected to the other side of the transmission box, a guide sleeve matching the telescopic tube is connected to the output end of the connecting seat, one end of the telescopic tube passes through the guide sleeve, the moving top shaft is rotatably connected to the inner hole wall of the telescopic tube through a bearing, the tail end of the moving top shaft is connected to the output shaft of the first motor through a connecting sleeve, the front end of the top shaft passes through the telescopic tube and is provided with a top pressure block, a transmission plate extends from the bottom of the slide seat, a threaded hole is arranged on the transmission plate, the second motor is installed at the bottom of the connecting seat, the output shaft of the second motor is installed with the screw, and the screw is threadedly connected to the threaded hole on the transmission plate.

[0007] A secondary guide sleeve is provided corresponding to the fixed top shaft, one side of the secondary guide sleeve is connected to an outer tube, a sealing plate is installed at the opening of the outer tube, a catheter that can be extended and retracted along its inner hole is provided in the secondary guide sleeve, the fixed top shaft is rotatably installed in the inner hole of the catheter through a bearing, a retaining ring is provided on the inner hole wall of the outer tube, an annular limiting ring is provided at the tail end of the catheter, the spring is provided between the limiting ring and the sealing plate, and the limiting ring contacts with the retaining ring under the action of the spring.

[0008] The beneficial effects of the utility model are as follows: the movable top shaft is driven by the second motor to extend and retract forwards and backwards. When the printing plate roller is installed, the movable top shaft is extended and inserted into a slot on one side of the printing plate roller and can overcome the spring elastic force of the fixed top shaft on the other side, so that the printing plate roller is clamped between the movable top shaft and the fixed top shaft. When the lateral position of the printing plate roller is adjusted, since one side of the printing plate roller is always under force contact with the fixed top shaft through the spring, the movable top shaft drives the screw thread transmission through the second motor to make it extend and retract laterally and drive the printing plate roller to make lateral position adjustment, thus achieving the technical effect of convenient and reliable adjustment, thereby improving work efficiency.

[0009] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a specific implementation method of the utility model;

[0011] Figure 2 This is a structural diagram of the fixed top shaft installation in a specific implementation manner of the utility model. DETAILED DESCRIPTION

[0012] The present invention is specifically described below through embodiments, which are only used to further illustrate the present invention and should not be construed as limiting the protection scope of the present invention.

[0013] like Figure 1 , Figure 2 As shown, this embodiment discloses a transverse plate adjustment mechanism of a printing press, comprising a movable ejector shaft 1, a fixed ejector shaft 2 and a plate roller 3. Slots are respectively arranged at both ends of the plate roller 3. The movable ejector shaft 1 can be extended and retracted transversely. The end of the movable ejector shaft 1 is pushed into or withdrawn from the slot at one end of the plate roller 3. The fixed ejector shaft 2 is extended and inserted into the slot at one end of the plate roller 3 through a spring 5. The rotation of the movable ejector shaft 1 is driven by a first motor 4. The transverse extension and retraction of the movable ejector shaft 1 is driven by a screw 6. The rotation of the screw 6 is driven by a second motor 7.

[0014] A connecting seat 8 is provided corresponding to the movable top shaft 1, and a guide rail 81 is provided on the connecting seat 8 along its length direction, and a slide seat 82 sliding along the guide rail 81 is arranged on the slide seat 82, and a transmission box 83 is provided on the slide seat 82. A first motor 4 is installed on one side of the transmission box 83, and a telescopic tube 84 is connected to the other side of the transmission box 83. A guide sleeve 85 matching the telescopic tube 84 is connected to the output end of the connecting seat 8, and one end of the telescopic tube 84 passes through the guide sleeve 85. The movable top shaft 1 is rotatably connected to the inner hole wall of the telescopic tube 84 through a bearing, and the tail end of the movable top shaft 1 is connected to the output shaft of the first motor 4 through a connecting sleeve 86, so that the first motor 4 can drive the movable top shaft 1 to rotate, and the front end of the movable top shaft 1 A telescopic tube 84 is passed through and is provided with a top pressure block, which is inserted into the slot of the plate roller 3 through the top pressure block and is matched with the top pin 2. The fixed top shaft 2 is also configured in the same way. A transmission plate 87 extends from the bottom of the slide 82, and a threaded hole is provided on the transmission plate 87. A second motor 7 is installed at the bottom of the connecting seat 8. A screw 6 is installed on the output shaft of the second motor 7. The screw 6 is threadedly connected to the threaded hole on the transmission plate 87. In this way, the second motor 7 drives the bolt to rotate. After the screw 6 rotates, the slide 82 on the book conveying plate moves back and forth along the guide rail 81, thereby driving the dynamic top shaft 1 to extend and retract. The extension and retraction of the dynamic top shaft 1 can adjust the lateral position of the plate roller 3, and at the same time, the plate roller 3 can also be withdrawn, so that the efficiency of replacing the plate roller 3 is improved.

[0015] A secondary guide sleeve 21 is provided corresponding to the fixed top shaft 2, one side of the secondary guide sleeve 21 is connected to an outer tube 22, a sealing plate 23 is installed at the opening of the outer tube 22, a catheter 24 is provided in the secondary guide sleeve 21, and the fixed top shaft 2 is rotatably installed in the inner hole of the catheter 24 through a bearing, a retaining ring 25 is arranged on the inner hole wall of the outer tube 22, and an annular limiting ring 26 is arranged at the tail end of the catheter 24, a spring 5 is arranged between the limiting ring 26 and the sealing plate 23, and the limiting ring 26 contacts the retaining ring 25 under the action of the spring 5. Of course, a small spring 5 can also be arranged in the inner hole of the spring 5 to realize the double spring 5 driving the fixed top shaft 2 to extend, so as to increase the contact pressure with the printing plate roller 3, so that the installation of the printing plate roller 3 is more reliable. When the movable top shaft 1 extends and pushes into the printing plate roller 3, the spring 5 can be compressed, so that the retaining ring 25 and the limiting ring 26 are separated, and the movable top shaft 1 is extended and retracted to realize the position adjustment of the printing plate roller 3 by compressing the length of the spring 5.

[0016] During installation, the guide sleeve 85 and the auxiliary guide sleeve 21 are installed on the side plate of the printing press. The lateral plate adjustment mechanism of the printing press is suitable for adjusting the lateral position of the plate roller 3. The length of the spring is basically in the range of about 12 cm.

[0017] By adopting the above technical scheme, the movable top shaft 1 is extended and retracted forward and backward under the drive of the second motor 7. When the plate roller 3 is installed, the movable top shaft 1 is extended and inserted into the slot on one side of the plate roller 3 and can overcome the elastic force of the spring 5 of the fixed top shaft 2 on the other side, so that the plate roller 3 is clamped between the movable top shaft 1 and the fixed top shaft 2. When the lateral position of the plate roller 3 is adjusted, since one side of the plate roller 3 is always under force contact with the fixed top shaft 2 through the spring 5, the movable top shaft 1 drives the screw thread transmission through the second motor 7 to make it extend and retract laterally and drive the plate roller 3 to make lateral position adjustment, thereby achieving a technical effect of convenient and reliable adjustment, thereby improving work efficiency.

[0018] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A lateral plate adjustment mechanism of a printing press, comprising a movable ejector shaft, a fixed ejector shaft and a plate roller, wherein slots are respectively arranged at both ends of the plate roller, the movable ejector shaft can be extended and retracted laterally, and the end of the movable ejector shaft is pushed into or out of the slot at one end of the plate roller, characterized in that: The fixed ejector shaft is extended through a spring and inserted into a slot at one end of the plate roller. The rotation of the movable ejector shaft is driven by a first motor. The lateral extension and contraction of the movable ejector shaft is driven by a screw rod, and the rotation of the screw rod is driven by a second motor.

2. The lateral plate adjustment mechanism of a printing press according to claim 1, characterized in that: A connecting seat is provided corresponding to the moving top shaft, the connecting seat is provided with a guide rail arranged along its length direction, a slide seat sliding along the guide rail is arranged on the guide rail, a transmission box is provided on the slide seat, the first motor is installed on one side of the transmission box, a telescopic tube is connected to the other side of the transmission box, a guide sleeve matching the telescopic tube is connected to the output end of the connecting seat, one end of the telescopic tube passes through the guide sleeve, the moving top shaft is rotatably connected to the inner hole wall of the telescopic tube through a bearing, the tail end of the moving top shaft is connected to the output shaft of the first motor through a connecting sleeve, the front end of the moving top shaft passes through the telescopic tube and is provided with a top pressure block, a transmission plate extends from the bottom of the slide seat, a threaded hole is arranged on the transmission plate, the second motor is installed at the bottom of the connecting seat, the output shaft of the second motor is installed with the screw, and the screw is threadedly connected to the threaded hole on the transmission plate.

3. The lateral plate adjustment mechanism of a printing press according to claim 1, characterized in that: A secondary guide sleeve is provided corresponding to the fixed top shaft, one side of the secondary guide sleeve is connected to an outer tube, a sealing plate is installed at the opening of the outer tube, a catheter that can be extended and retracted along its inner hole is provided in the secondary guide sleeve, the fixed top shaft is rotatably installed in the inner hole of the catheter through a bearing, a retaining ring is provided on the inner hole wall of the outer tube, an annular limiting ring is provided at the tail end of the catheter, the spring is provided between the limiting ring and the sealing plate, and the limiting ring contacts with the retaining ring under the action of the spring.

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