Electric plate borrowing mechanism of sheet-fed gravure press

Abstract

The utility model relates to the technical field of printing machines, and provides an electric plate borrowing mechanism of a sheet-fed gravure printing machine, which comprises a fixing frame, the front end face of the fixing frame is fixedly connected with a mounting plate, and a plate cylinder spindle head movably penetrates through the center of the mounting plate. The front support, the movable disc, the plate gear hub, the plate gear and the rear support are sequentially connected to the plate cylinder shaft head in a sleeving mode in the axial direction. The front support is fixedly connected with the installation disc, the movable disc is movably matched with the plate cylinder shaft head, the plate cylinder shaft head is in sliding connection with the front support through the movable disc, the plate gear is fixedly connected with the plate cylinder shaft head through a plate gear hub, and the plate cylinder shaft head is movably arranged in the center of the rear support in a penetrating mode. The driving assembly comprises an adapter ring which is rotatably fixed in the fixing frame, the adapter ring is configured to be in threaded connection with the moving disc so that the moving disc can slide relative to the front support, and the driving assembly further comprises a locking part which is connected with the adapter ring so that the adapter ring can be in a switchable rotating / fixing state. And the displacement stability of the plate cylinder shaft head is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing machines, in particular to an electric plate borrowing mechanism for a single-sheet intaglio printing machine. Background Technique

[0002] A single-sheet intaglio printing machine is composed of a speed-regulating motor, a transmission shaft and connecting gears, which can actively transmit power to each printing unit. At the same time, each printing unit is provided with an independent ink tank device, which can continuously supply a certain viscosity of ink to the surface of the plate cylinder. The ink is replicated on the surface of the printed matter through a scraping device.

[0003] At present, although the common single-sheet intaglio printing machine can achieve the front and rear displacement of the plate cylinder gear, so as to realize the electronic adjustment of plate cylinder plate borrowing, there are still certain defects in use. For example, in an electric plate borrowing mechanism of a single-sheet intaglio printing machine with the patent number CN214984024U, the long gear meshes with the plate borrowing gear. However, since the adapter sleeve is threadedly connected to the fixed bracket, the plate borrowing gear will slide relative to the long gear during the rotation process. Although the displacement of the plate gear can be realized, the relative sliding during the rotation and meshing of the gears will lead to poor displacement stability, thereby reducing the stability of the plate cylinder shaft head. Therefore, there is an urgent need for an electric plate borrowing mechanism for a single-sheet intaglio printing machine to solve the above existing problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an electric plate borrowing mechanism for a single-sheet intaglio printing machine to solve the above problems existing in the prior art and to improve the displacement stability of the plate cylinder shaft head.

[0005] To achieve the above purpose, the utility model provides the following scheme: The utility model provides an electric plate borrowing mechanism for a single-sheet intaglio printing machine, including a fixed frame, the front end face of the fixed frame is fixedly connected with a mounting plate, and a plate cylinder shaft head is movably penetrated through the center of the mounting plate. The electric plate borrowing mechanism further includes:

[0006] A front bracket, a moving plate, a plate gear hub, a plate gear and a rear bracket that are sequentially sleeved on the plate cylinder shaft head along the axial direction;

[0007] Wherein, the front bracket is fixedly connected with the mounting plate, the moving plate is movably matched with the plate cylinder shaft head, the plate cylinder shaft head is slidably connected with the front bracket through the moving plate, the plate gear is fixedly connected with the plate cylinder shaft head through the plate gear hub, and the plate cylinder shaft head is movably penetrated through the center of the rear bracket;

[0008] The drive assembly includes an adapter ring rotatably fixed in the fixed frame, the adapter ring is configured to be threadedly connected to the movable disk so that the movable disk slides relative to the front bracket, and also includes a locking portion, the locking portion is connected to the adapter ring to configure the adapter ring to have a switchable rotation / fixed state.

[0009] Preferably, it also includes:

[0010] A driving gear is connected in the fixing frame, a first driving member is arranged in the fixing frame, a driving end of the first driving member is connected to the driving gear, a gear tooth is fixedly connected to the outer peripheral side of the adapter ring, and the driving gear is meshed with the adapter ring through the gear tooth;

[0011] Wherein, the locking end of the locking portion is connected to the driving gear so that the driving gear has a switchable unlocking / locking state. When the driving gear is in the unlocking state, the driving gear is connected to the fixing frame. When the driving gear is in the locking state, the driving gear is fixed relative to the fixing frame.

[0012] Preferably, the locking portion comprises:

[0013] A brake disc is slidably fitted in the fixing frame, one side of the brake disc selectively contacts or does not contact the driving gear, and when the brake disc contacts the driving gear, the driving gear is fixed relative to the fixing frame;

[0014] At least one cylinder is fixedly connected to the inner side wall of the fixing frame, and the output end of the cylinder is fixedly connected to the brake disc.

[0015] Preferably, it also includes:

[0016] A pair of first limiting rings are respectively arranged on both sides of the adapter ring, and the side walls of the first limiting rings are fixedly connected to the inner wall of the fixing frame through a plurality of support rods. The pair of first limiting rings cooperate to define a transfer interval, and the adapter ring is rotatably fixed in the transfer interval.

[0017] Preferably, a thread is provided on the outer peripheral side of the movable disk, and the adapter ring is sleeved outside the movable disk and is threadedly connected to the movable disk.

[0018] Preferably, a cavity is provided in the front bracket, one end of the movable plate extends into the cavity and is fixedly connected with a second limiting ring, and the second limiting ring is key-connected in the cavity.

[0019] Preferably, one end of the movable plate away from the front bracket is in sliding contact with the plate gear hub.

[0020] Preferably, it also includes:

[0021] The support disk is arranged on the front end face of the fixed frame. The support disk wraps the part of the mounting disk extending out of the front end of the fixed frame, and the support disk is fixedly connected to the mounting disk.

[0022] The utility model discloses the following technical effects:

[0023] In the utility model, along the direction from front to back, a fixed frame, a safety disk, a front support, a moving disk, a plate gear hub, a plate gear and a rear support are successively sleeved on the plate cylinder shaft head. The front support is fixedly installed on the mounting disk, and a transfer ring is threadedly connected with the moving disk by using an adapter ring so that the moving disk is slidably connected with the front support. The moving disk is movably matched with the plate cylinder shaft head. During the sliding process, the plate cylinder shaft head can be displaced accordingly. The plate gear is fixedly connected to the plate cylinder shaft head through the plate gear hub to realize the operation of displacement-based plate borrowing. In addition, in this technical solution, the transfer ring is rotatably fixed in the fixed frame, effectively ensuring the transmission stability between the transfer ring and the moving disk and avoiding the relative sliding of the meshing gears. Moreover, a locking part is provided to adjust the state of the transfer ring, enabling the transfer ring to rotate / fix relative to the fixed frame. After the plate borrowing stops, the transfer ring is fixed relative to the fixed frame through the locking part, further improving the stability of the plate cylinder shaft head. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a three-dimensional structure diagram of the electric plate borrowing mechanism of the single-sheet gravure printing machine of the present invention;

[0026] Figure 2 It is an exploded view of the structure of the electric plate borrowing mechanism of the single-sheet gravure printing machine of the present invention;

[0027] Figure 3 It is a connection relationship diagram between the driving gear and the transfer ring in the present invention;

[0028] Figure 4 It is a three-dimensional structure diagram of the rear end face of the fixed frame in the present invention;

[0029] Among them, 1. Fixed frame; 2. Installation disk; 3. Plate cylinder shaft head; 4. Front support; 5. Movable disk; 6. Plate gear hub; 7. Plate gear; 8. Rear support; 9. Adapter ring; 10. Driving gear; 11. Teeth; 12. Brake disk; 13. Cylinder; 14. First limit ring; 15. Support rod; 16. Second limit ring; 17. Support disk; 18. Driving motor. Specific implementation manner

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0032] Refer to Figures 1 - 4 , the present invention provides an electric plate borrowing mechanism for a single-sheet intaglio printing press, including a fixed frame 1. An installation disk 2 is fixedly connected to the front end face of the fixed frame 1. A plate cylinder shaft head 3 is movably penetrated through the center of the installation disk 2. It further includes:

[0033] A front support 4, a movable disk 5, a plate gear hub 6, a plate gear 7, and a rear support 8 that are successively sleeved on the plate cylinder shaft head 3 along the axial direction;

[0034] Among them, the front support 4 is fixedly connected to the installation disk 2. The movable disk 5 is movably matched with the plate cylinder shaft head 3, and the plate cylinder shaft head 3 is slidably connected to the front support 4 through the movable disk 5. The plate gear 7 is fixedly connected to the plate cylinder shaft head 3 through the plate gear hub 6. The plate cylinder shaft head 3 is movably penetrated through the center of the rear support 8;

[0035] A driving assembly, including an adapter ring 9 that is rotatably fixed in the fixed frame 1. The adapter ring 9 is configured to be threadedly connected to the movable disk 5 to enable the movable disk 5 to slide relative to the front support 4. It further includes a locking portion that is connected to the adapter ring 9 to constitute that the adapter ring 9 has a switchable rotation / fixed state.

[0036] The utility model is characterized in that a fixing frame 1, a safety disk, a front bracket 4, a moving disk 5, a plate gear hub 6, a plate gear 7 and a rear bracket 8 are successively sleeved on a plate cylinder shaft head 3 along a direction from front to rear, the front bracket 4 is fixedly mounted on a mounting disk 2, and an adapter ring 9 is threadedly connected with the moving disk 5 so that the moving disk 5 and the front bracket 4 are slidably connected, and the moving disk 5 is movably matched with the plate cylinder shaft head 3, so that the plate cylinder shaft head 3 can be displaced in the sliding process, and the plate gear 7 is fixedly connected with the plate cylinder shaft head 3 through the plate gear hub 6 to realize the displacement plate borrowing operation.

[0037] In addition, the present technical solution rotatably fixes the adapter ring 9 in the fixed frame 1, which effectively ensures the transmission stability of the adapter ring 9 and the movable plate 5 and avoids relative sliding of the meshing gears. In addition, the state of the adapter ring 9 is adjusted by setting a locking portion, so that the adapter ring 9 can be rotated / fixed relative to the fixed frame 1. When the plate borrowing stops, the adapter ring 9 is fixed relative to the fixed frame 1 through the locking portion, so that the stability of the plate cylinder shaft head 3 is further improved.

[0038] In one embodiment of the present technical solution, the movable plate 5 and the plate cylinder shaft head 3 are movably matched, which is essentially a limited connection between the movable plate 5 and the plate cylinder shaft head 3, that is, the movable plate 5 is fixed relative to the plate cylinder shaft head 3 in the axial direction of the plate cylinder shaft head 3. At the same time, the sliding contact between the movable plate 5 and the plate cylinder shaft head 3 ensures that the plate cylinder shaft head 3 can rotate normally. Conventional design structures such as bearings can be used, or reference can be made to the connection structure between the adapter sleeve and the plate cylinder shaft head 3 in patent number CN214984024U, and no further explanation will be given here.

[0039] Furthermore, it also includes:

[0040] The driving gear 10 is connected in the fixing frame 1. A first driving member is arranged in the fixing frame 1. The driving end of the first driving member is connected to the driving gear 10. The outer peripheral side of the adapter ring 9 is fixed with gear teeth 11. The driving gear 10 is meshed with the adapter ring 9 through the gear teeth 11.

[0041] Among them, the locking end of the locking part is connected to the driving gear 10 so that the driving gear 10 has a switchable unlocking / locking state. When the driving gear 10 is in the unlocking state, the driving gear 10 is connected to the fixing frame 1. When the driving gear 10 is in the locking state, the driving gear 10 is fixed relative to the fixing frame 1.

[0042] In this technical solution, the first driving member is a driving motor 18 fixedly connected inside the fixing frame 1. The output shaft of the driving motor 18 is fixedly connected to the driving gear 10, realizing the transfer connection between the driving gear 10 and the fixing frame 1. At the same time, the teeth 11 fixedly connected to the outer peripheral side of the transfer ring 9 are engaged with the driving gear 10, so as to realize the driving gear 10 driving the transfer ring 9 to rotate, and the driving gear 10 is locked and controlled through the locking portion, enabling the driving gear 10 to switch between the rotating state and the fixed state. When the driving motor 18 stops working, the driving gear 10 can be stably fixed to the fixing frame 1, and then through the threaded connection between the transfer ring 9 and the moving disk 5, the moving disk 5 is stably fixed, ensuring the stability during the operation of the plate cylinder shaft head 3 rotating.

[0043] Further, the locking portion includes:

[0044] A brake disc 12, slidably fitted inside the fixing frame 1. One side of the brake disc 12 selectively abuts against or does not contact the driving gear 10. When the brake disc 12 abuts against the driving gear 10, the driving gear 10 is fixed relative to the fixing frame 1;

[0045] At least one cylinder 13, fixedly connected to the inner side wall of the fixing frame 1. The output end of the cylinder 13 is fixedly connected to the brake disc 12.

[0046] The cylinder 13 drives the brake disc 12 to move along the direction of the driving gear 10. When the brake disc 12 abuts against the side wall surface of the driving gear 10, the driving gear 10 can be fixed, realizing the improvement of the stability of the transfer ring 9. When the brake disc 12 does not contact the driving gear 10, the driving gear 10 can drive the transfer ring 9 to rotate through the driving motor 18.

[0047] Further, it further includes:

[0048] A pair of first limiting rings 14, respectively arranged on both sides of the transfer ring 9. The side wall surfaces of the first limiting rings 14 are fixedly connected to the inner wall of the fixing frame 1 through a plurality of support rods 15. The pair of first limiting rings 14 cooperate to define a transfer interval, and the transfer ring 9 is rotatably fixed within the transfer interval.

[0049] By fixedly connecting a pair of first limiting rings 14 inside the fixing frame 1, and respectively arranging the first limiting rings 14 on both sides of the transfer ring 9, the transfer ring 9 is limited and fixed along the axis direction of the plate cylinder shaft head 3. And the first limiting rings 14 and the transfer ring 9 are rotatably fixed through bearings (not shown in the figure), ensuring the rotating function of the transfer ring 9, effectively improving the stability of the threaded connection drive of the moving disk 5, and thus improving the displacement stability of the plate cylinder shaft head 3.

[0050] Further, the outer peripheral side of the moving disk 5 is provided with threads, and the transfer ring 9 is sleeved outside the moving disk 5 and is in threaded connection with the moving disk 5.

[0051] Further, a cavity is formed in the front support 4. One end of the moving disk 5 extends into the cavity and is fixedly connected with a second limiting ring 16, and the second limiting ring 16 is key-connected in the cavity.

[0052] Referring to Figure 2 , the protrusion fixedly connected to the outer peripheral side of the second limiting ring 16 is in limiting sliding connection with the cavity of the front support 4, so that the second limiting ring 16 can be key-connected with the cavity, and further the moving disk 5 is key-connected with the front support 4, ensuring that when the moving disk 5 is threadedly connected with the adapter ring 9, the moving disk 5 will not rotate relative to the front support 4 due to the rotation of the adapter ring 9, effectively ensuring the effect that the moving disk 5 drives the plate cylinder shaft head 3 to displace.

[0053] Further, one end of the moving disk 5 away from the front support 4 is in sliding contact with the plate gear hub 6.

[0054] By the sliding contact between the moving disk 5 and the plate gear hub 6, which has the same function as the movable cooperation between the moving disk 5 and the plate cylinder shaft head 3, the plate cylinder shaft head 3 is driven to move axially, and relative rotation between the plate cylinder shaft head 3 and the moving disk 5 is ensured.

[0055] Further, it further includes:

[0056] A support disk 17, which is arranged on the front end face of the fixing frame 1. The support disk 17 covers the part of the mounting disk 2 extending out of the front end of the fixing frame 1, and the support disk 17 is fixedly connected with the mounting disk 2.

[0057] The working principle of the electric plate borrowing mechanism of the single-sheet intaglio printing press of the present utility model is as follows:

[0058] The adapter ring 9 is threadedly connected with the moving disk 5, so that the moving disk 5 is in sliding connection with the front support 4, and the moving disk 5 is in limiting connection with the plate cylinder shaft head 3. That is, in the axial direction of the plate cylinder shaft head 3, the moving disk 5 is fixed relative to the plate cylinder shaft head 3. At the same time, there is sliding contact between the moving disk 5 and the plate cylinder shaft head 3. During the movement of the moving disk 5, the plate cylinder shaft head 3 can be driven to displace, and the plate gear 7 is fixedly connected with the plate cylinder shaft head 3 through the plate gear hub 6 to realize the plate borrowing operation of displacement.

[0059] By respectively arranging the first limiting ring 14 on both sides of the adapter ring 9, the adapter ring 9 is limited and fixed along the axial direction of the plate cylinder shaft head 3. Moreover, the first limiting ring 14 and the adapter ring 9 are in rotational contact through a bearing (not shown in the figure), ensuring the rotational function of the adapter ring 9 and effectively improving the stability of the threaded connection drive of the moving disk 5. In addition, the second limiting ring 16 can be key-connected to the cavity, thereby key-connecting the moving disk 5 and the front bracket 4, ensuring that when the moving disk 5 is threadedly connected to the adapter ring 9, it will not rotate relative to the front bracket 4 due to the rotation of the adapter ring 9. Finally, the cylinder 13 drives the brake disk 12 to move along the direction of the driving gear 10. When the brake disk 12 abuts against the side wall surface of the driving gear 10, the driving gear 10 can be fixed, making the adapter ring 9 stably fixed relative to the fixed frame 1 and improving the stability of the rotational operation of the plate cylinder shaft head 3.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0061] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. An electric plate borrowing mechanism for a single-sheet intaglio printing press, comprising a fixed frame (1), the front end face of the fixed frame (1) is fixedly connected with a mounting disc (2), and a plate cylinder shaft head (3) is movably penetrated through the center of the mounting disc (2), characterized in that, Further included are: A front bracket (4), a moving disk (5), a plate gear hub (6), a plate gear (7), and a rear bracket (8) that are successively sleeved on the shaft head (3) of the plate cylinder along the axis; Among them, the front bracket (4) is fixedly connected to the mounting disk (2), the moving disk (5) is movably matched with the shaft head (3) of the plate cylinder, the shaft head (3) of the plate cylinder is slidably connected to the front bracket (4) through the moving disk (5), the plate gear (7) is fixedly connected to the shaft head (3) of the plate cylinder through the plate gear hub (6), and the shaft head (3) of the plate cylinder is movably inserted through the center of the rear bracket (8); A driving assembly, including a transfer ring (9) rotatably fixed in the fixed frame (1), the transfer ring (9) is configured to be threadedly connected to the moving disk (5) so that the moving disk (5) slides relative to the front bracket (4), and further includes a locking portion, the locking portion is connected to the transfer ring (9) to constitute that the transfer ring (9) has a switchable rotation / fixed state.

2. The electric plate borrowing mechanism of the single-sheet intaglio printing press according to claim 1, characterized in that, Further included are: A driving gear (10) is transferred in the fixed frame (1), a first driving member is arranged in the fixed frame (1), a driving end of the first driving member is connected to the driving gear (10), a gear tooth (11) is fixedly connected to the outer peripheral side of the transfer ring (9), and the driving gear (10) meshes with the transfer ring (9) through the gear tooth (11); Among them, a locking end of the locking portion is connected to the driving gear (10) so that the driving gear (10) has a switchable unlocking / locking state. When the driving gear (10) is in the unlocking state, the driving gear (10) is transferred with the fixed frame (1). When the driving gear (10) is in the locking state, the driving gear (10) is fixed relative to the fixed frame (1).

3. The electric plate borrowing mechanism of the single-sheet intaglio printing press according to claim 2, characterized in that, The locking portion includes: A brake disk (12) is slidably matched in the fixed frame (1), one side of the brake disk (12) selectively abuts against or does not contact the driving gear (10). When the brake disk (12) abuts against the driving gear (10), the driving gear (10) is fixed relative to the fixed frame (1); At least one cylinder (13) is fixedly connected to the inner side wall of the fixed frame (1), and an output end of the cylinder (13) is fixedly connected to the brake disk (12).

4. The electric plate borrowing mechanism of the single-sheet intaglio printing press according to claim 1, characterized in that, Further included are: A pair of first limiting rings (14) are respectively arranged on both sides of the transfer ring (9). Side walls of the first limiting rings (14) are fixedly connected to the inner wall of the fixed frame (1) through a plurality of support rods (15). The pair of first limiting rings (14) cooperate to define a transfer interval, and the transfer ring (9) is rotatably fixed in the transfer interval.

5. The electric plate borrowing mechanism of the single-sheet gravure printing press according to claim 1, characterized in that: External threads are provided on the outer peripheral side of the moving disk (5), and the transfer ring (9) is sleeved outside the moving disk (5) and is threadedly connected to the moving disk (5).

6. The electric plate borrowing mechanism of the single-sheet intaglio printing press according to claim 1, characterized in that: A cavity is provided in the front bracket (4), one end of the moving disk (5) extends into the cavity and is fixedly connected with a second limiting ring (16), and the second limiting ring (16) is key-connected in the cavity.

7. The electric plate borrowing mechanism of the single-sheet intaglio printing press according to claim 1, characterized in that: One end of the movable disk (5) away from the front bracket (4) is in sliding contact with the plate gear hub (6).

8. The electric plate borrowing mechanism of the single-sheet gravure printing press according to claim 1, characterized in that, It further includes: A support disk (17) is arranged on the front end face of the fixed frame (1). The support disk (17) wraps the part of the mounting disk (2) extending out of the front end of the fixed frame (1), and the support disk (17) is fixedly connected to the mounting disk (2).

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