Centralized supply system for fountain solution of printing machine

Abstract

The utility model discloses a printing machine fountain solution centralized supply system which comprises a solution storage tank and a distribution mechanism, the solution storage tank is connected with the distribution mechanism through a conveying pipeline, a stirring mechanism and a pressure pump are arranged in the solution storage tank, a solution distribution plate and a flow guide pipe are arranged in the distribution mechanism, and a flow control valve and an adjusting mechanism are arranged outside the distribution mechanism. The stirring motor in the liquid storage box drives the stirring shaft and the stirring blades to evenly mix the fountain solution, the pressure pump pushes the fountain solution to the distribution mechanism, the flow control valve accurately controls the flow through the adjusting mechanism, and the supply stability is improved. Through the design of centralized supply and automatic adjustment, the problems that fountain solution is uneven in concentration, complex in operation and inconvenient to maintain are solved, the printing quality and operation convenience are improved, and the fountain solution supply device has the advantages of being compact in structure, efficient and stable.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to a centralized supply system for dampening solution in printing presses. Background Technology

[0002] In the printing industry, dampening solution is a crucial factor in ensuring print quality. Its role is to control the ink-water balance of the printing plate, thereby ensuring the clarity and color reproduction of the printed product. Traditional printing presses typically employ a decentralized dampening solution supply system, where each printing press is independently equipped with its own storage and supply device. While this method can meet basic production needs, it has several shortcomings in practical application. First, a decentralized supply system requires separate dampening solution preparation for each machine, which can easily lead to waste and uneven mixing, affecting the stability of print quality. Second, the decentralized storage and management of dampening solution makes centralized monitoring and unified allocation difficult, increasing the workload of operators and potentially causing quality problems due to human error. Furthermore, decentralized supply systems have high maintenance costs and are not conducive to the efficient operation of large-scale production lines. Therefore, developing a system that enables centralized dampening solution supply, precise mixing, and real-time monitoring has become a key technological requirement for improving printing efficiency and quality. Utility Model Content

[0003] The purpose of this utility model is to provide a centralized supply system for dampening solution in printing presses, which solves the problems mentioned in the background art.

[0004] This invention is achieved through a centralized dampening solution supply system for printing presses.

[0005] The system includes a reservoir and a distribution mechanism. A delivery pipe connects the reservoir and the distribution mechanism, through which the reservoir delivers dampening solution to the distribution mechanism. When the stirring motor inside the reservoir is activated, the stirring mechanism begins to work, uniformly mixing the dampening solution. Simultaneously, a pressure pump pushes the dampening solution to the distribution mechanism. A stirring motor is fixedly connected inside the reservoir, and a stirring shaft is installed between the stirring motor and the reservoir. One end of the stirring shaft is rotatably connected to the reservoir, and the other end is fixedly connected to the output end of the stirring motor. A distributor plate is fixedly connected inside the distribution mechanism, and a guide pipe is fixedly connected to the distributor plate. Flow control valves are fitted on the outside of both the guide pipe and the delivery pipe. One flow control valve is slidably connected to the guide pipe, and the other is threadedly connected to the delivery pipe. An adjustment mechanism is installed on the top of each flow control valve, allowing for precise control of the dampening solution flow rate. This, combined with the linkage between the reservoir and the distribution mechanism, makes the entire supply system more efficient and stable, improving printing quality and ease of operation.

[0006] Preferably, the stirring mechanism includes a first stirring blade, which is rotatably connected to a stirring shaft. A second stirring blade is rotatably connected to the top of the first stirring blade, and the second stirring blade is rotatably connected to the inner wall of the storage tank. The first and second stirring blades are of the same specification and are arranged in a cross pattern. There are a total of three sets of first and second stirring blades, which are rotatably connected end to end. In the set closest to the bottom of the storage tank, the first stirring blade is rotatably connected to a slider on the stirring shaft, while the second stirring blade is directly rotatably connected to the inner wall of the storage tank.

[0007] Preferably, both the liquid storage tank and the dispensing mechanism have mounting holes inside. Each of the liquid storage tank and the dispensing mechanism has two mounting holes. The mounting holes are used to insert fixing bolts, which are then used to finally fix the whole assembly.

[0008] Preferably, the adjusting mechanism includes a first adjusting rod, which is rotatably connected to a flow control valve. A first connecting rod is provided between the first adjusting rod and the storage tank. Under the action of the first connecting rod, when the stirring shaft drives the flow control valve to move, the first adjusting rod on the flow control valve will be squeezed or pulled by the first connecting rod, thereby causing the first adjusting rod to rotate automatically upward or downward. One end of the first connecting rod is rotatably connected to the storage tank, and the other end of the first connecting rod is rotatably connected to the first adjusting rod. A first adjusting plate is rotatably connected to one side of the first adjusting rod, and a second adjusting plate is rotatably connected to the other side of the first adjusting rod. A second adjusting rod is rotatably connected between the first adjusting plate and the second adjusting plate. Gears are fixedly connected to the outside of both the second adjusting rod and the first adjusting rod, and the two gears mesh with each other. The first adjusting plate and the flow control valve are connected by a second connecting rod. One end of the second connecting rod is rotatably connected to the first adjusting plate, and the other end is rotatably connected to the flow control valve. The four positions of the first adjusting plate, the flow control valve, the first adjusting plate, and the flow control valve form a parallelogram, ensuring that the second connecting rod and the first adjusting rod are always parallel to each other. When the first adjusting rod rotates, the second connecting rod pushes and pulls the first adjusting plate. With the cooperation of two meshing gears, the first adjusting plate drives the second adjusting rod to rotate around the first adjusting rod until the second adjusting rod and the first adjusting rod are in the same straight line or parallel to each other.

[0009] Preferably, both the first and second adjusting rods have internal storage slots. A rotating shaft is rotatably connected inside the storage slot. An adjusting wheel is sleeved on the outside of the rotating shaft. Multiple adjusting wheels are arranged on the rotating shaft at equal intervals. The adjusting wheels are fixedly connected to the rotating shaft. An adjusting belt is wound around the outside of the adjusting wheel. The adjusting belt is fixedly connected to the adjusting wheel. A torsion spring is sleeved on the outside of the rotating shaft and between the storage slot and the adjusting wheel. One end of the torsion spring is fixedly connected to the rotating shaft, and the other end of the torsion spring is fixedly connected to the storage slot. The torsion spring is mainly used to drive the rotating shaft to rotate automatically, and the rotating shaft then drives the adjusting wheel to rotate and wind up the adjusting belt.

[0010] Preferably, a baffle is detachably connected inside the storage slot. The baffle has a through hole inside, which is used in conjunction with the adjusting belt. The first adjusting rod and the second adjusting rod are fixed to the baffle by screws. The baffle can seal the storage slots on the first adjusting rod and the second adjusting rod to prevent debris from entering the storage slots. The adjusting belt extends directly to the outside through the through hole on the baffle.

[0011] Preferably, both the liquid storage tank and the dispensing mechanism are fixedly connected to slide rails, and the flow control valve has a groove on the side near the slide rail. The groove works in conjunction with the slide rail to limit the flow control valve, making the flow control valve move more smoothly.

[0012] Preferably, the distribution mechanism has a through groove inside, and a roller is rotatably connected inside the through groove. There are two through grooves, which are symmetrically distributed. When the stirring motor is started, the stirring motor will drive the flow control valve to move through the stirring shaft. The flow control valve uses the adjustment mechanism to drive the distribution mechanism to move, so that the distribution mechanism moves away from or closer to the liquid storage tank, thereby realizing the overall automatic adjustment and distribution.

[0013] Preferably, a control panel is fixedly connected to the outside of the liquid storage tank, and the stirring motor is electrically connected to the control panel. The electrical equipment is powered by an external power source, such as a battery, and the start, stop, forward and reverse rotation of the stirring motor are controlled by the control panel.

[0014] Beneficial Effects: This utility model discloses a centralized damping solution supply system for printing presses. Through the coordinated operation of the storage tank 1, the distribution mechanism 2, the conveying pipeline 3, and the adjusting mechanism, it achieves centralized supply and precise distribution of damping solution. This system not only solves the problems of uneven damping solution supply, complex operation, and inconvenient maintenance in existing technologies, but also significantly improves printing efficiency and operational convenience, and has broad application prospects. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection of the adjustment mechanism in this utility model.

[0018] The attached figures are labeled as follows:

[0019] 1. Storage tank; 2. Distribution mechanism; 3. Delivery pipeline; 4. Stirring motor; 5. Stirring shaft; 6. Flow control valve; 7. Distributor plate; 8. Guide pipe; 9. First stirring blade; 10. Second stirring blade; 11. First adjusting rod; 12. Second adjusting rod; 13. Gear; 14. Adjusting wheel; 15. Adjusting belt; 16. Torsion spring; 17. Baffle plate; 18. Slide rail; 19. Roller; 20. Control panel. Detailed Implementation

[0020] This utility model provides a centralized supply system for dampening solution in printing presses, the specific implementation of which is described in conjunction with the appendix. Figure 1 To be continued Figure 3 Please provide a detailed explanation. For example... Figure 1 As shown, the system mainly includes a storage tank 1, a distribution mechanism 2, and a conveying pipe 3. The storage tank 1 and the distribution mechanism 2 are connected by the conveying pipe 3, forming a centralized supply channel for the dampening solution. The storage tank 1 is equipped with a stirring motor 4 and a stirring shaft 5. The stirring motor 4 is located at the top of the storage tank 1 and is fixedly connected to the stirring shaft 5. The stirring shaft 5 penetrates the interior of the storage tank 1 and extends to the bottom, driving the stirring mechanism to uniformly mix the dampening solution. A flow control valve 6 is fitted externally to the conveying pipe 3. The flow control valve 6 achieves precise control of the dampening solution flow rate through an adjusting mechanism. The distribution mechanism 2 is equipped with a distributing plate 7 and a guide pipe 8. The distributing plate 7 and the guide pipe 8 are fixedly connected, used to uniformly distribute the dampening solution to each printing press unit.

[0021] In practical applications, both the liquid storage tank 1 and the dispensing mechanism 2 have two mounting holes for inserting fixing bolts to secure the overall structure. For example... Figure 1As shown, a control panel 20 is fixedly connected to the outside of the storage tank 1. The control panel 20 is electrically connected to the stirring motor 4, powered by an external power supply, and controls the start, stop, forward and reverse rotation of the stirring motor 4. After the stirring motor 4 is started, the stirring shaft 5 drives the stirring mechanism to work. The stirring mechanism includes a first stirring blade 9 and a second stirring blade 10. The first stirring blade 9 is rotatably connected to the stirring shaft 5, and the second stirring blade 10 is rotatably connected to the inner wall of the storage tank 1. The two are arranged in a cross pattern and are of the same size. There are three sets of the first stirring blade 9 and the second stirring blade 10, connected end to end. In the set closest to the bottom of the storage tank 1, the first stirring blade 9 is rotatably connected to the slider on the stirring shaft 5, while the second stirring blade 10 is directly rotatably connected to the inner wall of the storage tank 1. The design of the stirring mechanism ensures that the dampening solution is fully mixed in the storage tank 1, thereby ensuring the uniformity of its concentration.

[0022] After being stirred, the dampening solution is pushed from the storage tank 1 to the distribution mechanism 2 via the delivery pipe 3 by a pressure pump. Both the delivery pipe 3 and the guide pipe 8 are fitted with flow control valves 6. One flow control valve 6 is slidably connected to the guide pipe 8, and the other flow control valve 6 is threadedly connected to the delivery pipe 3. An adjustment mechanism is provided on the top of the flow control valve 6. The specific structure of the adjustment mechanism is as follows... Figure 2 As shown. The adjusting mechanism includes a first adjusting rod 11 and a second adjusting rod 12. The first adjusting rod 11 is rotatably connected to the flow control valve 6. A first connecting rod is provided between the first adjusting rod 11 and the liquid storage tank 1. Under the action of the first connecting rod, when the stirring shaft 5 drives the flow control valve 6 to move, the first adjusting rod 11 will be squeezed or pulled by the first connecting rod, thereby realizing automatic up and down rotation. A first adjusting plate is rotatably connected to one side of the first adjusting rod 11, and a second adjusting plate is rotatably connected to the other side. The first adjusting plate and the second adjusting plate are rotatably connected through the second adjusting rod 12. Gears 13 are fixedly connected to the outside of both the first adjusting rod 11 and the second adjusting rod 12. The two gears 13 mesh with each other to form a linkage relationship. A second connecting rod is provided between the first adjusting plate and the flow control valve 6. One end of the second connecting rod is rotatably connected to the first adjusting plate, and the other end is rotatably connected to the flow control valve 6. The second connecting rod and the first adjusting rod 11 are always in a parallel state. When the first adjusting rod 11 rotates, the second connecting rod pushes and pulls the first adjusting plate. With the cooperation of the two gears 13, the first adjusting plate drives the second adjusting rod 12 to rotate around the first adjusting rod 11 until the second adjusting rod 12 and the first adjusting rod 11 are in the same straight line or parallel state. This design ensures that the adjustment process of the flow control valve 6 is smooth and precise.

[0023] To further improve the flexibility and durability of the adjustment mechanism, both the first adjustment rod 11 and the second adjustment rod 12 have internal storage slots. A rotating shaft is rotatably connected within each slot, and multiple equidistantly distributed adjustment wheels 14 are fitted around the shaft. An adjustment belt 15 is wound around each adjustment wheel 14. A torsion spring 16 is fitted around the shaft, between the storage slot and the adjustment wheel 14. One end of the torsion spring 16 is fixedly connected to the shaft, and the other end is fixedly connected to the storage slot. The main function of the torsion spring 16 is to drive the shaft to rotate automatically, which in turn drives the adjustment wheels 14 to rotate, thereby winding the adjustment belt 15. Furthermore, a baffle 17 is detachably connected inside the storage slot. The baffle 17 has a through hole inside, which cooperates with the adjustment belt 15, allowing the belt 15 to extend to the outside through the through hole. The baffle 17 is fixedly connected to the first adjustment rod 11 and the second adjustment rod 12 by screws, sealing the storage slot and preventing debris from entering and affecting the normal operation of the adjustment mechanism.

[0024] The internal structure of the distribution mechanism 2 is as follows Figure 3 As shown, the distribution mechanism 2 has internal channels, with rollers 19 rotatably connected within each channel. There are two channels, symmetrically distributed. When the stirring motor 4 starts, the stirring shaft 5 drives the distribution mechanism 2 to move via the flow control valve 6. The distribution mechanism 2 uses an adjusting mechanism to move away from or closer to the storage tank 1, thereby achieving automatic adjustment and distribution of the dampening solution. The distribution mechanism 2 also has a slide rail 18 inside. The flow control valve 6 has a groove on the side near the slide rail 18, which works in conjunction with the slide rail 18 to ensure smoother movement of the flow control valve 6. The distributing plate 7 is fixedly connected to the guide pipes 8. The distributing plate 7 evenly distributes the dampening solution to each guide pipe 8, which then delivers the dampening solution to different units of the printing press, thus achieving centralized supply of the dampening solution.

[0025] In actual operation, the operator starts the stirring motor 4 via the control panel 20. The stirring motor 4 drives the stirring shaft 5 to rotate, and the stirring shaft 5 drives the stirring mechanism to uniformly mix the dampening solution in the storage tank 1. The mixed dampening solution, under the action of the pressure pump, flows through the delivery pipe 3 to the distribution mechanism 2. During this process, the flow control valve 6 precisely controls the flow rate of the dampening solution through the regulating mechanism, ensuring a stable and uniform supply. The distributing plate 7 in the distribution mechanism 2 evenly distributes the dampening solution to each guide pipe 8, which then delivers the dampening solution to different units of the printing press. The entire system operates efficiently and stably, not only solving the problem of uneven dampening solution supply in existing technologies but also significantly improving printing quality and ease of operation.

[0026] Furthermore, both the liquid storage tank 1 and the distribution mechanism 2 of this utility model adopt a modular design, facilitating installation and maintenance. The mounting holes of the liquid storage tank 1 and the distribution mechanism 2 are fixed with fixing bolts to ensure the stability of the overall structure. Simultaneously, the cooperative design of the slide rail 18 and the slide groove makes the movement of the flow control valve 6 smoother, avoiding flow fluctuations caused by mechanical vibration. The linkage design of the gear 13 and the adjusting wheel 14 in the adjusting mechanism further improves the accuracy of flow control, while the automatic reset function of the torsion spring 16 enhances the response speed and reliability of the adjusting mechanism. The design of the baffle 17 effectively protects the components inside the storage tank, extending the service life of the equipment.

[0027] In summary, this invention achieves centralized supply and precise distribution of dampening solution through the coordinated operation of the storage tank 1, the distribution mechanism 2, the conveying pipeline 3, and the adjusting mechanism. This system not only solves the problems of uneven dampening solution supply, complex operation, and inconvenient maintenance in existing technologies, but also significantly improves printing efficiency and operational convenience, demonstrating broad application prospects.

[0028] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A centralized supply system for dampening solution in a printing press, comprising a storage tank (1) and a distribution mechanism (2), characterized in that: A conveying pipe (3) is provided between the liquid storage tank (1) and the distribution mechanism (2). A stirring motor (4) is fixedly connected inside the liquid storage tank (1). A stirring shaft (5) is provided between the stirring motor (4) and the liquid storage tank (1). One end of the stirring shaft (5) is rotatably connected to the liquid storage tank (1), and the other end is fixedly connected to the output end of the stirring motor (4). A liquid distribution plate (7) is fixedly connected inside the distribution mechanism (2). A guide pipe (8) is fixedly connected between the liquid distribution plate (7) and the distribution mechanism (2). Flow control valves (6) are sleeved on the outside of both the guide pipe (8) and the conveying pipe (3). One of the flow control valves (6) is slidably connected to the guide pipe (8), and the other flow control valve (6) is threadedly connected to the conveying pipe (3). An adjustment mechanism is provided on the top of the flow control valve (6).

2. The centralized supply system for dampening solution in a printing press according to claim 1, characterized in that: The storage tank (1) is equipped with a stirring mechanism, which includes a first stirring blade (9) and a second stirring blade (10). The first stirring blade (9) is rotatably connected to the stirring shaft (5), and the second stirring blade (10) is rotatably connected to the inner wall of the storage tank (1). The first stirring blade (9) and the second stirring blade (10) are arranged in a cross pattern and have the same specifications. There are three sets of the first stirring blade (9) and the second stirring blade (10) connected end to end. In the set closest to the bottom of the storage tank (1), the first stirring blade (9) is rotatably connected to the slider on the stirring shaft (5), and the second stirring blade (10) is rotatably connected to the inner wall of the storage tank (1).

3. The centralized damping solution supply system for a printing press according to claim 1, characterized in that: The liquid storage tank (1) and the dispensing mechanism (2) each have two mounting holes inside, which are used to insert fixing bolts to complete the fixing of the overall structure.

4. The centralized supply system for dampening solution in a printing press according to claim 1, characterized in that: The regulating mechanism includes a first regulating rod (11) and a second regulating rod (12). The first regulating rod (11) is rotatably connected to the flow control valve (6). A first connecting rod is provided between the first regulating rod (11) and the liquid storage tank (1). One end of the first connecting rod is rotatably connected to the liquid storage tank (1), and the other end is rotatably connected to the first regulating rod (11). A first regulating plate is rotatably connected to one side of the first regulating rod (11), and a second regulating plate is rotatably connected to the other side. The first regulating plate and the second regulating plate are rotatably connected through the second regulating rod (12). Gears (13) are fixedly connected to the outside of both the first regulating rod (11) and the second regulating rod (12). The two gears (13) mesh with each other. A second connecting rod is provided between the first regulating plate and the flow control valve (6). One end of the second connecting rod is rotatably connected to the first regulating plate, and the other end is rotatably connected to the flow control valve (6).

5. A centralized damping solution supply system for a printing press according to claim 4, characterized in that: The first adjusting rod (11) and the second adjusting rod (12) are both provided with a storage groove. The storage groove is rotatably connected to a rotating shaft. Multiple equally spaced adjusting wheels (14) are sleeved on the outside of the rotating shaft. An adjusting belt (15) is wound around the outside of the adjusting wheels (14). A torsion spring (16) is sleeved on the outside of the rotating shaft and between the storage groove and the adjusting wheel (14). One end of the torsion spring (16) is fixedly connected to the rotating shaft, and the other end is fixedly connected to the storage groove.

6. A centralized damping solution supply system for a printing press according to claim 5, characterized in that: The storage slot is detachably connected to a baffle (17). The baffle (17) has a through hole inside, which is used in conjunction with the adjustment belt (15). The baffle (17) is fixedly connected to the first adjustment rod (11) and the second adjustment rod (12) by screws.

7. A centralized damping solution supply system for a printing press according to claim 1, characterized in that: The liquid storage tank (1) and the dispensing mechanism (2) are both fixedly connected to slide rails (18). The flow control valve (6) has a groove on the side near the slide rail (18). The groove works in conjunction with the slide rail (18). The dispensing mechanism (2) has two symmetrically distributed through grooves inside. Rollers (19) are rotatably connected inside the through grooves.

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