Fountain solution supply quantity adjusting mechanism of offset press

Abstract

The utility model discloses an offset press fountain solution supply quantity adjusting mechanism, and particularly relates to the technical field of printing, the offset press fountain solution supply quantity adjusting mechanism comprises a solution storage mechanism, the bottom of the solution storage mechanism is connected with a solution guide pipe, one side of the solution guide pipe is connected with a pump body, and one side of the pump body is connected with a flow meter; a driven gear is rotationally installed in the pump body at the lower end of the driving gear, a first gear extending out of the pump body is installed at the rear end of the driven gear, and a second gear meshed with the first gear is installed on the periphery of the main shaft. Under the mutual cooperation of a plurality of gears, the device can automatically control the flowing speed of the fountain solution according to the rotating speed of a plate cylinder or an impression cylinder on the offset press, and meanwhile, the flowing speed of the fountain solution can be controlled by changing the positions of the fourth gear and the fifth gear; and the fourth gear controls the conveying speed of the pump body through the third gear, so that the supply amount of the fountain solution is regulated and controlled according to different printing requirements, and the use process is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, in particular to a dampening solution supply quantity regulating mechanism for an offset printing machine. Background Art

[0002] The offset press is a type of lithographic press. Its working principle is based on the lithographic printing technology. Fountain solution is an indispensable chemical additive in the offset printing process. It is also called fountain solution, fountain solution, wetting solution, etc. Its main function is to form a uniform water film on the blank part of the printing plate to resist the infiltration of the ink on the image into the blank part and prevent dirty plates. In the offset printing process, the supply of fountain solution has an important influence on the printing quality.

[0003] In the process of implementing the present invention, the inventors found that there are at least the following problems in the prior art:

[0004] The dampening solution supply amount regulating mechanism in the existing offset printing press usually has the problem of low regulating accuracy and cannot automatically adjust the dampening solution supply amount according to the printing speed of the offset printing press during use.

[0005] Therefore, the above technical problems need to be solved. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the utility model proposes a dampening solution supply amount adjustment mechanism for an offset printing press, which solves the problem that the dampening solution supply amount adjustment mechanism in the existing offset printing press usually has low adjustment accuracy and cannot automatically adjust the dampening solution supply amount according to the printing speed of the offset printing press when in use.

[0007] In order to achieve the above purpose, the basic technical solution proposed by the utility model is:

[0008] The dampening solution supply amount regulating mechanism of an offset printing machine comprises a liquid storage mechanism, the bottom of the liquid storage mechanism is connected to a liquid guide tube, one side of the liquid guide tube is connected to a pump body, and one side of the pump body is connected to a flow meter;

[0009] A driving gear is rotatably installed inside the pump body, a driven gear is rotatably installed inside the pump body at the lower end of the driving gear, a main shaft extending from the pump body is installed at the rear end of the driving gear, a first gear extending from the pump body is installed at the rear end of the driven gear, a second gear meshing with the first gear is installed on the periphery of the main shaft, a third gear is installed at the rear end of the main shaft, electric push rods are installed on both sides of the rear end of the pump body, the rear end of the electric push rods is connected to a mounting plate, a fifth gear is rotatably installed at the front end of the mounting plate, and a fourth gear is rotatably installed at the front end of the mounting plate at the bottom of the fifth gear.

[0010] Preferably, the side vertical surface of the fourth gear is located below the main shaft, and the fourth gear and the main shaft are meshed with each other, and the side vertical surface of the fifth gear is located on one side above the main shaft.

[0011] Preferably, a motor is installed at the rear end of the mounting plate, an output end of the motor is connected to the fifth gear, and the fifth gear is connected to the mounting plate via a bearing.

[0012] Preferably, the liquid storage mechanism includes a liquid storage tank, a liquid level sensor, a temperature sensor and a stainless steel electric heating tube, the liquid level sensor is located on one side inside the liquid storage tank, the temperature sensor is located on the other side inside the liquid storage mechanism, and the stainless steel electric heating tubes are evenly spaced inside the liquid storage tank.

[0013] Preferably, the liquid storage mechanism further includes a top cover and an end cover, the top cover is sleeved on the top of the liquid storage tank, and a detachable end cover is installed on the top of the top cover.

[0014] Preferably, the liquid storage mechanism further comprises a mounting seat and a mounting bolt, wherein the mounting seat is located at the four corners of the bottom of the liquid storage tank, and the mounting bolt is slidably mounted inside the mounting seat.

[0015] Preferably, a connecting seat is connected to the bottom of the flow meter, and a connecting bolt is slidably installed inside the connecting seat.

[0016] The beneficial effects of the utility model are:

[0017] The technical solution of the utility model, through the mutual cooperation of multiple gears, enables the device to automatically control the speed of the discharge of the dampening liquid according to the rotation speed of the plate cylinder or the impression cylinder on the offset printing machine, and can also be achieved by changing the positions of the fourth gear and the fifth gear, so that the fourth gear controls the speed of the pump body through the third gear, so as to adjust the supply amount of the dampening liquid according to different printing requirements and optimize the use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the first embodiment of the utility model;

[0019] Figure 2 It is a rear view of the first embodiment of the utility model;

[0020] Figure 3 It is a cross-sectional view of the liquid storage mechanism of the first embodiment of the utility model;

[0021] Figure 4 It is a partial cross-sectional view of the pump body and the motor of the first embodiment of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the pump body of Example 1 of the utility model.

[0023] In the figure: 1. liquid storage mechanism; 101. liquid storage tank; 102. top cover; 103. end cover; 104. liquid level sensor; 105. temperature sensor; 106. stainless steel electric heating tube; 107. mounting seat; 108. mounting bolt; 2. liquid guide tube; 3. pump body; 4. driving gear; 5. driven gear; 6. first gear; 7. second gear; 8. third gear; 9. main shaft; 10. fourth gear; 11. bearing; 12. fifth gear; 13. motor; 14. electric push rod; 15. mounting plate; 16. flow meter; 17. connecting seat; 18. connecting bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: an offset printing press dampening solution supply amount regulating mechanism comprises a liquid storage mechanism 1, a liquid guide tube 2 is connected to the bottom of the liquid storage mechanism 1, a pump body 3 is connected to one side of the liquid guide tube 2, and a flow meter 16 is connected to one side of the pump body 3; a driving gear 4 is rotatably installed inside the pump body 3, a driven gear 5 is rotatably installed inside the pump body 3 at the lower end of the driving gear 4, a main shaft 9 extending from the pump body 3 is installed at the rear end of the driving gear 4, a first gear 6 extending from the pump body 3 is installed at the rear end of the driven gear 5, a second gear 7 meshing with the first gear 6 is installed on the periphery of the main shaft 9, a third gear 8 is installed at the rear end of the main shaft 9, electric push rods 14 are installed on both sides of the rear end of the pump body 3, a mounting plate 15 is connected to the rear end of the electric push rod 14, a fifth gear 12 is rotatably installed at the front end of the mounting plate 15 at the bottom of the fifth gear 12, and a fourth gear 10 is rotatably installed at the front end of the mounting plate 15, wherein the fourth gear 10 is connected to a plate cylinder or an impression cylinder on the offset printing press by a gear.

[0026] Based on the above-mentioned structure, the offset printing press dampening liquid supply amount regulating mechanism is composed of a liquid storage mechanism 1, a liquid guide tube 2, a pump body 3 and a flow meter 16, wherein the liquid storage mechanism 1 is used to store the dampening liquid of the offset printing press, the liquid guide tube 2 and the pump body 3 are used to transport the dampening liquid, and the flow meter 16 is used to calculate the flow rate. Specifically, during the working process, the dampening liquid for the offset printing press is first added to the liquid storage mechanism 1 for storage, and the dampening liquid in the liquid storage mechanism 1 is guided to the inside of the pump body 3 by the liquid guide tube 2. The fourth gear 10 and the plate cylinder or the impression cylinder on the offset printing press are connected by gears. After the transmission is connected, the fourth gear 10 can be driven to rotate during the rotation of the plate cylinder or the impression cylinder. During the rotation of the fourth gear 10, the second gear 7, the third gear 8, the main shaft 9 and the driving gear 4 are driven to rotate at the same time. During the rotation of the second gear 7, the first gear 6 and the driven gear 5 are driven to rotate. The teeth of the driving gear 4 and the driven gear 5 are separated from each other to form a low pressure, and the liquid in the liquid guide tube 2 is sucked into the pump body 3, and is pushed to one side by the inner shell wall of the pump body 3. The teeth of the driving gear 4 and the driven gear 5 on one side are closed together to form a high pressure, and the liquid The dampening liquid is discharged from one side of the pump body 3, so that the discharge speed of the dampening liquid can be automatically controlled according to the rotation speed of the plate cylinder or the impression cylinder. After the electric push rod 14 is started, the electric push rod 14 drives the mounting plate 15 to move a certain distance toward the pump body 3, so that the fourth gear 10 is respectively disengaged from the gear connected to the plate cylinder or the impression cylinder and the third gear 8 on the main shaft 9, and the fifth gear 12 is driven by the mounting plate 15 to mesh with the third gear 8, and the third gear 8 is driven by the fifth gear 12 to rotate, so that the transmission speed of the pump body 3 can be controlled by the fifth gear 12. The speed of the dampening liquid delivered by the pump body 3 is detected by the flow meter 16. The dampening liquid supply adjustment mechanism of the offset printing press can automatically control the speed of the dampening liquid discharge according to the rotation speed of the plate cylinder or the impression cylinder on the offset printing press through the cooperation of multiple gears. At the same time, it can also be achieved by changing the positions of the fourth gear 10 and the fifth gear 12, so that the fourth gear 10 controls the speed of the pump body 3 through the third gear 8, so as to adjust the dampening liquid supply according to different printing requirements and optimize the use process.

[0027] Furthermore, the side vertical surface of the fourth gear 10 is located below the main shaft 9, and the fourth gear 10 and the main shaft 9 are meshed with each other, and the side vertical surface of the fifth gear 12 is located on one side above the main shaft 9. The side vertical surfaces of the fourth gear 10 and the fifth gear 12 are staggered; specifically, the distance between the side vertical surfaces of the fourth gear 10 and the fifth gear 12 is greater than the thickness of the third gear 8, and less than the distance between the third gear 8 and the second gear 7.

[0028] Furthermore, a motor 13 is installed at the rear end of the mounting plate 15, and the output end of the motor 13 is connected to the fifth gear 12, and the fifth gear 12 is connected to the mounting plate 15 via a bearing 11. The motor 13 is fixedly connected to the mounting plate 15, and the output end of the motor 13 is rotatably connected to the mounting plate 15; specifically, when the motor 13 is started, the fifth gear 12 rotates under the drive of the motor 13, thereby providing power for the first gear 6.

[0029] Furthermore, the liquid storage mechanism 1 includes a liquid storage tank 101, a liquid level sensor 104, a temperature sensor 105 and a stainless steel electric heating tube 106. The liquid level sensor 104 is located on one side of the liquid storage tank 101, the temperature sensor 105 is located on the other side of the liquid storage mechanism 1, and the stainless steel electric heating tubes 106 are evenly spaced inside the liquid storage tank 101. There are two liquid level sensors 104, which are respectively installed at a high position and a low position inside the liquid storage tank 101, and the temperature sensor 105 is located at a low position on the inner wall of the liquid storage tank 101; specifically, after the device is connected to an external power supply, the liquid level inside the liquid storage tank 101 is detected by using the liquid level sensor 104, and the stainless steel electric heating tube 106 is powered on to heat the fountain solution, so that the fountain solution is kept between 8 and 12 degrees to avoid the situation where too high or too low temperature affects its activity or causes the fountain solution to evaporate too quickly.

[0030] Furthermore, the liquid storage mechanism 1 further includes a top cover 102 and an end cover 103. The top cover 102 is mounted on the top of the liquid storage tank 101, and a detachable end cover 103 is mounted on the top of the top cover 102. Specifically, after the top cover 102 is assembled on the top of the liquid storage mechanism 1, the overall sealing of the liquid storage mechanism 1 can be increased. After the end cover 103 is opened, it is convenient for users to add fountain solution into the liquid storage tank 101.

[0031] Furthermore, the liquid storage mechanism 1 further includes a mounting seat 107 and a mounting bolt 108. The mounting seat 107 is located at the four corners of the bottom of the liquid storage tank 101, and the mounting bolt 108 is slidably installed inside the mounting seat 107. A mounting groove is provided on one side of the mounting seat 107 close to the liquid storage tank 101; specifically, when in use, the mounting bolt 108 is used to pass through the mounting seat 107 and connect with the structure on the offset printing press, and after the connection, the position of the liquid storage mechanism 1 is limited.

[0032] Furthermore, a connection seat 17 is connected to the bottom of the flow meter 16, and a connection bolt 18 is slidably installed inside the connection seat 17. The connection seat 17 and the flow meter 16 are fixedly connected; specifically, the position of the flow meter 16 can be limited by using the connection bolt 18 to pass through the connection seat 17 and connect to the offset printing machine.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mechanism for adjusting the amount of dampening solution supplied to an offset printing press, characterized in that: It comprises a liquid storage mechanism (1), the bottom of the liquid storage mechanism (1) is connected to a liquid guide tube (2), one side of the liquid guide tube (2) is connected to a pump body (3), and one side of the pump body (3) is connected to a flow meter (16); A driving gear (4) is rotatably mounted inside the pump body (3), a driven gear (5) is rotatably mounted inside the pump body (3) below the driving gear (4), a main shaft (9) extending from the pump body (3) is mounted at the rear end of the driving gear (4), a first gear (6) extending from the pump body (3) is mounted at the rear end of the driven gear (5), a second gear (7) meshing with the first gear (6) is mounted on the periphery of the main shaft (9), a third gear (8) is mounted at the rear end of the main shaft (9), electric push rods (14) are mounted on both sides of the rear end of the pump body (3), a mounting plate (15) is connected to the rear end of the electric push rod (14), a fifth gear (12) is rotatably mounted at the front end of the mounting plate (15), and a fourth gear (10) is rotatably mounted at the front end of the mounting plate (15) at the bottom of the fifth gear (12).

2. The mechanism for adjusting the amount of dampening solution supplied to an offset printing press according to claim 1, characterized in that: The side vertical surface of the fourth gear (10) is located below the main shaft (9), and the fourth gear (10) and the main shaft (9) are meshed with each other, and the side vertical surface of the fifth gear (12) is located on one side above the main shaft (9).

3. The mechanism for adjusting the amount of dampening solution supplied to an offset printing press according to claim 1, characterized in that: A motor (13) is installed at the rear end of the mounting plate (15); an output end of the motor (13) is connected to a fifth gear (12); and the fifth gear (12) and the mounting plate (15) are connected via a bearing (11).

4. The mechanism for adjusting the amount of dampening solution supplied to an offset printing press according to claim 1, characterized in that: The liquid storage mechanism (1) comprises a liquid storage tank (101), a liquid level sensor (104), a temperature sensor (105) and a stainless steel electric heating tube (106); the liquid level sensor (104) is located on one side of the liquid storage tank (101), the temperature sensor (105) is located on the other side of the liquid storage mechanism (1), and the stainless steel electric heating tube (106) is distributed at equal intervals inside the liquid storage tank (101).

5. The mechanism for adjusting the amount of dampening solution supplied to an offset printing press according to claim 4, characterized in that: The liquid storage mechanism (1) further comprises a top cover (102) and an end cover (103); the top cover (102) is mounted on the top of the liquid storage tank (101); and a detachable end cover (103) is mounted on the top of the top cover (102).

6. The mechanism for adjusting the amount of dampening solution supplied to an offset printing press according to claim 5, characterized in that: The liquid storage mechanism (1) further comprises a mounting seat (107) and a mounting bolt (108); the mounting seat (107) is located at the four corners of the bottom of the liquid storage box (101); and the mounting bolt (108) is slidably mounted inside the mounting seat (107).

7. The mechanism for adjusting the amount of dampening solution supplied to an offset printing press according to any one of claims 1 to 6, characterized in that: The bottom of the flow meter (16) is connected to a connection seat (17), and a connection bolt (18) is slidably mounted inside the connection seat (17).

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