Printing roller adjusting device for printing machine

Abstract

The embossing roller adjusting device comprises a base, supporting plates are arranged at the two ends of the base, lifting screw rods are rotationally connected to the middles of the supporting plates, mounting plates are connected to the tops of the supporting plates in an inserted mode, the lifting screw rods are in threaded connection with the mounting plates, and driving rods are arranged at the bottom of the base. The two ends of the driving rod are connected with the bottom ends of the two lifting screw rods respectively, a motor is arranged on one side of the base, the output end of the motor is connected with the driving rod, the motor drives the driving rod to rotate, the driving rod drives the lifting screw rods to rotate after rotating, and the lifting screw rods can drive the mounting plate to move up and down after rotating. A printing roller is rotationally connected between the two mounting plates; a driving cylinder is arranged at the bottom of the outer side face of the supporting plate, the output end of the driving cylinder is connected with a limiting plate, and a limiting pin is arranged at the position, aligned with the axis of the lifting screw, of the limiting plate. The height of the printing roller can be stably adjusted through the driving rod.

Description

Technical Field

[0001] The utility model relates to the technical field of printing roller adjustment, in particular to a printing roller adjustment device for a printing machine. Background Art

[0002] Printing machines are widely used for printing patterns on the surfaces of various materials. The printing roller is one of the core components of a printing machine, and its performance and adjustment accuracy directly affect the printing quality. In order to ensure that the printing roller can perform printing processing on materials of different thicknesses, current printing machines usually install adjustment mechanisms at both ends of the printing roller to facilitate the adjustment of the position of the printing roller.

[0003] For example, the utility model patent with the patent number CN202022293488.5 discloses an aluminum foil paper printing roller adjustment device, which includes a frame, and also includes a printing mechanism arranged on the frame. The printing mechanism includes two parallel and opposite support plates arranged on both sides of the frame. A printing roller is rotatably connected between the support plates. Mounting plates are slidably connected to the support plates. Wool rollers are rotatably connected to the mounting plates. The printing roller and the wool roller are parallel and in contact with each other. A first adjustment component for adjusting the distance between the wool roller and the printing roller is installed on the support plates. A power component for driving the printing roller to rotate is also installed on the support plates. The distance between the printing roller and the wool roller can be adjusted through the first adjustment component.

[0004] The printing roller adjustment device provided by the above patent mainly relies on the screws at both ends of the printing roller for adjustment. However, the two screws of this printing roller adjustment device are independently arranged. When adjusting the printing roller, it is necessary to simultaneously turn the two screws, which is inconvenient to operate, and it is impossible to ensure that the rotation speeds of the screws are the same. Furthermore, it is impossible to ensure that the printing roller will not tilt during the adjustment process. Therefore, the existing printing roller adjustment device is inconvenient to use, which is not conducive to the staff to efficiently and quickly adjust the printing roller, and it is also inconvenient to lock the adjusted printing roller. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a printing roller adjustment device for a printing machine, aiming to improve the problems that the existing printing roller adjustment device is inconvenient to use, which is not conducive to the staff to efficiently and quickly adjust the printing roller, and it is also inconvenient to lock the adjusted printing roller.

[0006] The utility model is implemented as follows:

[0007] A printing roller adjusting device for a printing machine, comprising a base. Both ends of the base are provided with support plates. A lifting screw rod is rotatably connected to the middle of the support plates. An installation plate is inserted into the top of the support plates. The lifting screw rod is threadedly connected to the installation plate. A driving rod is provided at the bottom of the base. Both ends of the driving rod are respectively connected to the bottom ends of the two lifting screw rods. A motor is provided on one side of the base. The output end of the motor is connected to the driving rod. The motor drives the driving rod to rotate. After the driving rod rotates, it drives the lifting screw rod to rotate. After the lifting screw rod rotates, it can drive the installation plate to move up and down; A printing roller is rotatably connected between the two installation plates; A driving cylinder is provided at the bottom of the outer side of the support plate. The output end of the driving cylinder is connected to a limiting plate. A limiting pin is provided at the position where the limiting plate aligns with the axis of the lifting screw rod.

[0008] Preferably, driving ports are provided along the lower sides of the support plates at both ends of the base. An installation groove is provided in the middle of the top end of the support plate. Guide grooves are symmetrically provided along both sides of the installation groove at the top end of the support plate. The lifting screw rod is installed inside the installation groove, and the bottom end of the lifting screw rod extends out of the installation groove and is placed at the driving port; Transfer plates are provided on the upper surface of the base near the two support plates. A first bearing is provided in the middle of the transfer plate.

[0009] Preferably, a connecting shaft is provided at the bottom end of the lifting screw rod. The connecting shaft is rotatably connected to the bottom of the installation groove; A first bevel gear is provided at one end of the bottom of the lifting screw rod passing through the installation groove and placed at the driving port, and a limiting slot is provided in the middle of the bottom end of the lifting screw rod.

[0010] Preferably, a second bearing is provided in the middle of the side of the installation plate facing the printing roller. Guide rods are provided at the positions where the bottom surface of the installation plate aligns with the guide grooves, and an installation rod is provided in the middle of the bottom surface of the installation plate. A threaded groove is provided on the bottom surface of the installation rod. The threaded groove is threadedly connected to the lifting screw rod.

[0011] Preferably, second bevel gears are provided at both ends of the driving rod. A transmission gear is provided at the position where the driving rod aligns with the output end of the motor.

[0012] Preferably, a driving gear is provided at the output end of the motor. The driving gear is meshed and connected to the transmission gear; Fixing feet are provided at the bottom of the motor. Multiple fixing holes are provided on the fixing feet.

[0013] Preferably, connecting feet are provided at the top and bottom of both sides of the driving cylinder. Connecting holes are provided in the middle of the connecting feet; And a telescopic rod is provided at the output end of the driving cylinder. A baffle is provided at a position near the bottom end on the side of the telescopic rod. A plugging block is provided on the bottom surface of the baffle. A stud is provided in the middle of the plugging block. A pressing nut is provided on the stud. The pressing nut presses on the limiting plate.

[0014] Preferably, one end of the limit plate is provided with a sleeve hole which is sleeved on the insertion block; the limit pin is arranged at the top of the other end of the limit plate, and a plurality of tooth grooves are evenly arranged on the side surface of the limit pin.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. In the present utility model, a driving rod is arranged on the base, and both ends of the driving rod are connected to the lifting screws at both ends of the printing roller. The driving rod can drive the two lifting screws to rotate at the same rate, so as to stably adjust the height of the printing roller. Moreover, driving cylinders and limit plates are symmetrically arranged on both sides of the base, and a limit pin is arranged on the limit plate. After the printing roller is adjusted, the driving cylinder drives the limit plate and the limit pin to move upward, so that the limit pin is inserted into the lifting screw to prevent the lifting screw from rotating, thus ensuring the stable use of the printing roller.

[0017] 2. In the present utility model, guide rods are arranged on both sides of the bottom of the mounting plate, so as to facilitate ensuring the stable up and down movement of the mounting plate through the guide rods, and further ensuring the stability of the printing roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural view of the whole of the present utility model;

[0019] Figure 2 is a schematic structural view of the base of the present utility model;

[0020] Figure 3 is a schematic structural view of the lifting screw of the present utility model;

[0021] Figure 4 is a schematic structural view of the mounting plate of the present utility model;

[0022] Figure 5 is a schematic structural view of the driving rod of the present utility model;

[0023] Figure 6 is a schematic structural view of the motor of the present utility model;

[0024] Figure 7 is a schematic structural view of the driving cylinder of the present utility model;

[0025] Figure 8 is a schematic structural view of the limit plate of the present utility model.

[0026] In the figure: 1. Base; 11. Support plate; 12. Driving port; 13. Guide groove; 14. Installation groove; 15. Adapter plate; 16. First bearing; 2. Lifting screw rod; 21. Connecting shaft; 22. First bevel gear; 23. Limit slot; 3. Mounting plate; 31. Second bearing; 32. Guide rod; 33. Mounting rod; 34. Thread groove; 4. Printing roller; 5. Driving rod; 51. Transmission gear; 52. Second bevel gear; 6. Motor; 61. Fixed foot; 62. Fixed hole; 63. Driving gear; 7. Driving cylinder; 71. Connecting foot; 72. Connecting hole; 73. Telescopic rod; 74. Baffle; 75. Insertion block; 76. Stud; 77. Compression nut; 8. Limit plate; 81. Sleeve hole; 82. Limit joint; 83. Limit pin. Detailed implementation manner

[0027] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation" and other terms shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] The following will be further described in conjunction with the accompanying drawings and specific embodiments:

[0029] Embodiment 1

[0030] As Figure 1 、 Figure 2 and Figure 8 shown, a printing roller adjusting device for a printing machine includes a base 1. Support plates 11 are provided at both ends of the base 1. A lifting screw rod 2 is rotatably connected to the middle of the support plate 11. A mounting plate 3 is inserted into the top of the support plate 11. The lifting screw rod 2 is threadedly connected to the mounting plate 3. The support plate 11 facilitates the installation of the lifting screw rod 2 and the mounting plate 3, so as to ensure that the mounting plate 3 can move up and down stably under the drive of the lifting screw rod 2. A driving rod 5 is provided at the bottom of the base 1. Both ends of the driving rod 5 are respectively connected to the bottom ends of the two lifting screw rods 2. A motor 6 is provided on one side of the base 1. The output end of the motor 6 is connected to the driving rod 5. The motor 6 drives the driving rod 5 to rotate. After the driving rod 5 rotates, it drives the lifting screw rod 2 to rotate. After the lifting screw rod 2 rotates, it can drive the mounting plate 3 to move up and down. A printing roller 4 is rotatably connected between the two mounting plates 3. The printing roller 4 facilitates printing on the surface of the material.

[0031] As Figure 2As shown in the figure, drive ports 12 are provided along both ends of the base 1 under the support plate 11. The drive ports 12 facilitate the connection between the drive rod 5 and the lifting screw 2. In the middle of the top end of the support plate 11, there is an installation groove 14, which is convenient for installing the lifting screw 2 and facilitating the rotation of the lifting screw 2. Along both sides of the installation groove 14 on the top end of the support plate 11, guide grooves 13 are symmetrically provided. The guide grooves 13 are used to ensure the up and down movement of the installation plate 3. The lifting screw 2 is installed inside the installation groove 14, and the bottom end of the lifting screw 2 extends out of the installation groove 14 and is placed at the drive port 12. This structure facilitates the smooth connection between the lifting screw 2 and the drive rod 5. On the upper surface of the base 1, transfer plates 15 are provided near the positions of the two support plates 11. In the middle of the transfer plate 15, there is a first bearing 16. The cooperation between the transfer plate 15 and the first bearing 16 facilitates the rotational connection between the first bearing 16 and the drive rod 5.

[0032] As Figure 3 shown, at the bottom end of the lifting screw 2, there is a connecting shaft 21, and the connecting shaft 21 is rotationally connected to the bottom of the installation groove 14; this structure facilitates the stable rotation of the lifting screw 2. At one end of the bottom of the lifting screw 2 passing through the installation groove 14 and placed in the drive port 12, there is a first bevel gear 22, and the first bevel gear 22 facilitates the connection between the lifting screw 2 and the drive rod 5.

[0033] As Figure 4 shown, in the middle of the side of the installation plate 3 facing the printing roller 4, there is a second bearing 31, and the second bearing 31 facilitates the rotational connection between the installation plate 3 and the printing roller 4. At the position of the bottom surface of the installation plate 3 aligned with the guide groove 13, there is a guide rod 32, and the guide rod 32 facilitates the stable up and down movement of the installation plate 3 along the guide groove 13. And in the middle of the bottom surface of the installation plate 3, there is an installation rod 33, and at the bottom surface of the installation rod 33, there is a threaded groove 34. Installing the installation plate 3 inside the installation groove 14 can ensure the stable up and down movement of the installation plate 3. The threaded groove 34 is threadedly connected to the lifting screw 2, and the rotation of the lifting screw 2 can drive the stable up and down movement of the installation plate 3.

[0034] As Figure 5 shown, at both ends of the drive rod 5, there are second bevel gears 52, and the second bevel gears 52 facilitate the connection between the drive screw and the lifting screw 2. At the position of the drive rod 5 aligned with the output end of the motor 6, there is a transmission gear 51, and the transmission gear 51 facilitates driving the rotation of the drive rod 5 and facilitating the use of the drive rod 5.

[0035] As Figure 6 shown, at the output end of the motor 6, there is a drive gear 63, and the drive gear 63 is meshed with the transmission gear 51; this facilitates the motor 6 to drive the rotation of the drive rod 5. At the bottom of the motor 6, there are fixing feet 61, and on the fixing feet 61, there are multiple fixing holes 62. The fixing feet 61 and the fixing holes 62 facilitate fixing the position of the motor 6 through bolts.

[0036] Embodiment 2

[0037] Compared with Embodiment 1, in order to limit the lifting screw 2 and ensure that the printing roller 4 does not rotate after being adjusted to the specified position, a driving cylinder 7 is also provided.

[0038] The driving cylinder 7 is arranged at the bottom of the outer side of the support plate 11. The driving cylinder 7 can be a hydraulic cylinder, a pneumatic cylinder or an electric cylinder; the output end of the driving cylinder 7 is connected with a limiting plate 8, and a limiting pin 83 is arranged at the position aligned with the axis of the lifting screw 2 on the limiting plate 8; by driving the limiting plate 8 to move up and down through the driving cylinder 7, the limiting pin 83 is inserted into the bottom end of the lifting screw 2, so as to ensure that the lifting screw 2 will not rotate easily. A limiting slot 23 is arranged in the middle of the bottom end of the lifting screw 2, and the limiting slot 23 is convenient for cooperating with the limiting pin 83, so as to facilitate the limitation of the position of the lifting screw 2.

[0039] As Figure 7 shown, connecting feet 71 are arranged at the top and bottom ends on both sides of the driving cylinder 7, and a connecting hole 72 is arranged in the middle of the connecting feet 71; the connecting feet 71 and the connecting hole 72 are convenient for cooperating with bolts, so as to facilitate the fixing of the position of the driving cylinder 7 through bolts. And a telescopic rod 73 is arranged at the output end of the driving cylinder 7, and the telescopic rod 73 is convenient for driving the limiting plate 8 to move up and down. A baffle 74 is arranged at a position close to the bottom end on the side of the telescopic rod 73, and a plug-in block 75 is arranged on the bottom surface of the baffle 74. The cooperation of the baffle 74 and the plug-in block 75 is convenient for mutual limitation with the limiting plate 8. A stud 76 is arranged in the middle of the plug-in block 75, and a pressing nut 77 is arranged on the stud 76, and the pressing nut 77 presses on the limiting plate 8; this structure is convenient for stably fixing the limiting plate 8 on the baffle 74.

[0040] As Figure 8 shown, a sleeve hole 81 is arranged at one end of the limiting plate 8, and the sleeve hole 81 is sleeved on the plug-in block 75; this ensures the stability of the limiting plate 8 on the plug-in block 75. The limiting pin 83 is arranged at the top of the other end of the limiting plate 8, and a plurality of tooth grooves are evenly arranged on the side surface of the limiting pin 83, and the tooth grooves are convenient for the limiting pin 83 to be mutually limited with the lifting screw 2 smoothly.

[0041] Working principle: During use, when it is necessary to adjust the height of the printing roller 4, the driving motor 6 is used to drive the driving rod 5 to rotate by the motor 6. The driving rod 5 drives the two lifting screws 2 to rotate at the same time, and the mounting plate 3 is driven to move up or down through the lifting screws 2, so as to achieve the purpose of adjusting the position of the printing roller 4. When the position of the printing roller 4 is adjusted to the appropriate position, the operation of the motor 6 is stopped, and then the driving cylinder 7 is used to drive the limiting plate 8 and the limiting pin 83 to be inserted into the limiting groove, so as to ensure that the lifting screw 2 cannot continue to rotate. The stability of the mounting plate 3 and the printing roller 4 is ensured, and it is also convenient for the printing roller 4 to stably perform printing processing on the material.

[0042] In summary, compared with the prior art, in the present application, a driving rod 5 is provided on the base 1, and both ends of the driving rod 5 are simultaneously connected to the lifting screws 2 at both ends of the printing roller 4. The two lifting screws 2 can be simultaneously driven by the driving rod 5 to rotate at the same rate, so as to stably adjust the height of the printing roller 4. Moreover, driving cylinders 7 and limiting plates 8 are symmetrically provided on both sides of the base 1. A limiting pin 83 is provided on the limiting plate 8. After the adjustment of the printing roller 4 is completed, the driving cylinder 7 drives the limiting plate 8 and the limiting pin 83 to move upward, so that the limiting pin 83 is inserted into the lifting screw 2 to prevent the lifting screw 2 from rotating, thereby ensuring the stable use of the printing roller 4.

[0043] The above is only the preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A printing roller adjustment device for a printing machine, comprising a base (1), characterized in that: Both ends of the base (1) are provided with support plates (11), the middle of the support plate (11) is rotatably connected with a lifting screw rod (2), the top of the support plate (11) is plugged with a mounting plate (3), the lifting screw rod (2) and the mounting plate (3) are threadedly connected, a driving rod (5) is provided at the bottom of the base (1), the two ends of the driving rod (5) are respectively connected to the bottom ends of the two lifting screw rods (2), a motor (6) is provided on one side of the base (1), and the output end of the motor (6) is connected to the driving rod (5) The motor (6) drives the driving rod (5) to rotate, and the driving rod (5) drives the lifting screw (2) to rotate after the rotation, and the lifting screw (2) can drive the mounting plate (3) to move up and down after the rotation; a printing roller (4) is rotatably connected between the two mounting plates (3); a driving cylinder (7) is provided at the bottom of the outer side surface of the support plate (11), and the output end of the driving cylinder (7) is connected to a limit plate (8), and a limit pin (83) is provided on the limit plate (8) at a position aligned with the axis center of the lifting screw (2).

2. A printing roller adjustment device for a printing machine according to claim 1, characterized in that: The base (1) is provided with a driving opening (12) at both ends along the lower side of the support plate (11); a mounting groove (14) is provided at the middle of the top end of the support plate (11); guide grooves (13) are symmetrically provided at the top end of the support plate (11) along both sides of the mounting groove (14); the lifting screw rod (2) is installed inside the mounting groove (14), and the bottom end of the lifting screw rod (2) protrudes out of the mounting groove (14) and is placed at the driving opening (12); and adapter plates (15) are provided at positions on the upper surface of the base (1) close to the two support plates (11), and a first bearing (16) is provided in the middle of the adapter plate (15).

3. A printing roller adjustment device for a printing machine according to claim 2, characterized in that: A connecting shaft (21) is provided at the bottom end of the lifting screw rod (2), and the connecting shaft (21) is rotatably connected to the bottom of the mounting groove (14); a first bevel gear (22) is provided at one end of the bottom of the lifting screw rod (2) that passes through the mounting groove (14) and is placed at the driving port (12), and a limiting slot (23) is provided in the middle of the bottom end of the lifting screw rod (2).

4. The printing roller adjustment device for a printing machine according to claim 1, characterized in that: A second bearing (31) is provided in the middle of one side of the mounting plate (3) facing the printing roller (4), a guide rod (32) is provided on the bottom surface of the mounting plate (3) at a position aligned with the guide groove (13), and a mounting rod (33) is provided in the middle of the bottom surface of the mounting plate (3), a threaded groove (34) is provided on the bottom surface of the mounting rod (33), and the threaded groove (34) is threadedly connected to the lifting screw (2).

5. The printing roller adjustment device for a printing machine according to claim 1, characterized in that: Second bevel gears (52) are provided at both ends of the driving rod (5), and a transmission gear (51) is provided at a position of the driving rod (5) aligned with the output end of the motor (6).

6. A printing roller adjustment device for a printing machine according to claim 5, characterized in that: The output end of the motor (6) is provided with a driving gear (63), and the driving gear (63) is meshed and connected with the transmission gear (51); the bottom of the motor (6) is provided with a fixing foot (61), and the fixing foot (61) is provided with a plurality of fixing holes (62).

7. A printing roller adjustment device for a printing machine according to any one of claims 1 to 6, characterized in that: The top and bottom ends of both sides of the driving cylinder (7) are provided with connecting feet (71), and a connecting hole (72) is provided in the middle of the connecting feet (71); and a telescopic rod (73) is provided at the output end of the driving cylinder (7), and a baffle (74) is provided at a position near the bottom end of the side of the telescopic rod (73), and a plug-in block (75) is provided on the bottom surface of the baffle (74), and a stud (76) is provided in the middle of the plug-in block (75), and the stud (76) is provided with a clamping nut (77), and the clamping nut (77) is clamped on the limit plate (8).

8. The printing roller adjustment device for a printing machine according to claim 7, characterized in that: One end of the limit plate (8) is provided with a sleeve hole (81), and the sleeve hole (81) is sleeved on the plug-in block (75); the limit pin (83) is arranged at the top of the other end of the limit plate (8), and a plurality of tooth grooves are evenly arranged on the side surface of the limit pin (83).

Images