A pneumatic force regulating and warning device for a four color printing press

Abstract

This utility model relates to a pneumatic adjustment and early warning device for a four-color printing press, belonging to the field of printing press technology. The pneumatic adjustment and early warning device for a four-color printing press includes: a housing, in which an air compressor is fixedly connected; an air storage tank connected to the air compressor is fixedly installed inside the housing; an air outlet pipe is connected to the air storage tank; and an adjustment mechanism is provided inside the housing. The adjustment mechanism includes a compensation tank fixedly connected inside the housing. The air outlet pipe is connected to a guide pipe, and a piezoelectric valve is fixedly installed on the air outlet pipe. The piezoelectric valve adjusts the gas entering the cylinder to ensure stable gas pressure. The piezoelectric valve has a fast response speed and can accurately control the position of the rollers. The compensation tank dynamically compensates for the air pressure in the air storage tank to ensure pressure stability. A pressure sensor detects the pressure; when the pressure is abnormal, an indicator light flashes to indicate a leak.

Description

Technical Field

[0001] This utility model relates to the field of printing press technology, and in particular to a pneumatic adjustment and early warning device for a four-color printing press. Background Technology

[0002] Four-color printing presses specifically refer to offset printing presses that use four inks—black, blue, brown, and green—to reproduce the colors on the original artwork. Inside a four-color printing press, gas is used to drive cylinders to extend and retract, thereby adjusting the position of the rollers. Unstable air supply can lead to misregistration or equipment wear.

[0003] Currently, a Chinese patent discloses a pneumatic adjustment and early warning device for a four-color printing press (authorization announcement number CN219312288U). This utility model includes a main body and a multi-functional adjustment mechanism. The multi-functional adjustment mechanism of this pneumatic adjustment and early warning device for a four-color printing press includes an adjustment box, a fixed plate, a sliding protrusion, a sliding groove, a support rod, a sliding ring, a connecting rod, a fixed ring, a distance sensor, a suction cup, and a protective pad. When a pneumatic adjustment and early warning device for a four-color printing press is needed, the sliding protrusion and the sliding groove cooperate to move the support rod along with the sliding groove. However, this method has the following drawbacks in actual use: it can adjust the pressure of the suction cup, but it cannot adjust the entire air path; pressure pulsation is easily generated during continuous operation, leading to a decrease in ink transfer accuracy. Utility Model Content

[0004] Therefore, it is necessary to provide a pneumatic force regulation and early warning device for a four-color printing press to address the problem that the entire air circuit cannot be regulated and pressure pulsation is prone to occur during continuous operation.

[0005] A pneumatic adjustment and early warning device for a four-color printing press includes: a housing, an air compressor fixedly connected inside the housing, an air storage tank connected to the air compressor fixedly installed inside the housing, an air outlet pipe connected to the air storage tank, and an adjustment mechanism provided inside the housing; the adjustment mechanism includes a compensation tank fixedly connected inside the housing, the compensation tank and the air storage tank being connected via a connecting pipe, two one-way solenoid valves symmetrically arranged on the connecting pipe, the air outlet pipe being connected to the connecting pipe, and a piezoelectric valve fixedly installed on the air outlet pipe.

[0006] In one embodiment, a connecting pipe is provided inside the box, with its two ends connected to a gas storage tank and a compensation tank, respectively, and a one-way valve is fixedly installed on the connecting pipe.

[0007] In one embodiment, pressure sensors are installed on both the gas storage tank and the compensation tank, a controller electrically connected to the pressure sensors is provided on the outer surface of the housing, and an indicator light electrically connected to the controller is provided on the top of the housing.

[0008] In one embodiment, four air outlet pipes are provided, and each air outlet pipe is connected to a four-color printing press via a pipe.

[0009] In one embodiment, a quick-connect fitting is provided at one end of the vent pipe, and a marking is provided on the vent pipe.

[0010] In one embodiment, the housing has a heat dissipation groove corresponding to the air compressor on the side near the air compressor, and a filter plate corresponding to the heat dissipation groove is inserted into the inner wall of the housing.

[0011] In one embodiment, the indicator light is configured as a tri-color light, and the surface of the enclosure is provided with an inspection door.

[0012] In one embodiment, the compensation tank and the gas storage tank are stainless steel tanks, and a drain valve is provided at the bottom of the gas storage tank and the compensation tank.

[0013] Beneficial effects A piezoelectric valve is installed to regulate the gas entering the cylinder, ensuring stable gas pressure inside the cylinder. The piezoelectric valve has a fast response speed and can precisely control the position of the roller. A compensation tank is installed to dynamically compensate for the gas pressure in the storage tank, ensuring pressure stability. A pressure sensor is installed to detect the pressure, and an indicator light flashes when the pressure is abnormal to indicate a leak. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the box of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the adjustment mechanism of this utility model; Figure 4 This is a schematic diagram of the internal structure of the box of this utility model. Figure 2 .

[0016] Figure label: 100. Housing; 110. Air compressor; 111. Air tank; 112. Air outlet pipe; 113. Filter plate; 200. Adjustment mechanism; 210. Compensation tank; 211. Connecting pipe; 212. Check valve; 213. Conductor pipe; 214. Check solenoid valve; 215. Pressure sensor; 216. Piezoelectric valve; 220. Indicator light; 221. Controller. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this specification are for illustrative purposes only and do not represent the only possible implementation.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0021] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this specification belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0022] The following is combined with Figures 1-4 This invention describes a pneumatic adjustment and early warning device for a four-color printing press.

[0023] In one embodiment, a pneumatic adjustment and early warning device for a four-color printing press includes: The housing 100 has an air compressor 110 fixedly connected inside it, and an air tank 111 connected to the air compressor 110 is fixedly installed inside the housing 100. An air outlet pipe 112 is connected to the air tank 111. An adjustment mechanism 200 is provided inside the housing 100. The adjustment mechanism 200 includes a compensation tank 210 fixedly connected inside the housing 100. The compensation tank 210 is connected to the air tank 111 through a conductor pipe 213. Two one-way solenoid valves 214 are symmetrically arranged on the conductor pipe 213. The air outlet pipe 112 is connected to the conductor pipe 213, and a piezoelectric valve 216 is fixedly installed on the air outlet pipe 112.

[0024] like Figure 2 As shown, a connecting pipe 211 is provided inside the housing 100. The two ends of the connecting pipe 211 are connected to the gas storage tank 111 and the compensation tank 210, respectively. A one-way valve 212 is fixedly installed on the connecting pipe 211.

[0025] In this embodiment, air compressor 110 fills the air tank 111 and the compensation tank 210 with air. Gas can only enter the compensation tank 210 unidirectionally through the air tank 111, prioritizing ensuring that the air pressure in the air tank 111 meets the set value. The air outlet pipe 112 connects to the four-color printing press. The movement of the four-color printing press rollers is controlled by the gas transported through the air tank 111. The air tank 111 also buffers the gas flow, reducing pressure fluctuations when the air compressor 110 is turned on and off.

[0026] like Figure 3 As shown, pressure sensors 215 are installed on both the gas storage tank 111 and the compensation tank 210. A controller 221 electrically connected to the pressure sensor 215 is provided on the outer surface of the housing 100. An indicator light 220 electrically connected to the controller 221 is provided on the top of the housing 100.

[0027] In this embodiment, the pressure sensor 215 monitors the air pressure in the air storage tank 111 and the compensation tank 210. When the air pressure drops to the set value, the air compressor 110 starts to fill the air storage tank 111 and the compensation tank 210 with air. When the pressure sensor 215 detects that the air pressure is rapidly and continuously decreasing, it sends a signal to the controller 221. The controller 221 then sends a signal to the indicator light 220, causing the indicator light 220 to flash red to indicate an air leak.

[0028] like Figure 3 As shown, there are four air outlet pipes 112, each connected to a four-color printing press via a pipe. One end of each air outlet pipe 112 has a quick-connect fitting, and the air outlet pipe 112 is marked.

[0029] In this embodiment, a quick-connect fitting connects the air outlet pipe 112 to the cylinder of the printing press. The cylinder drives the roller to move, and four different air outlet pipes 112 enable different control of the air path. The air outlet pipes 112 are distinguished by markings.

[0030] like Figure 1 and Figure 4 As shown, the housing 100 has a heat dissipation slot corresponding to the air compressor 110 on the side near the air compressor 110, and a filter plate 113 corresponding to the heat dissipation slot is inserted into the inner wall of the housing 100.

[0031] In this embodiment, the air compressor 110 is cooled by a heat dissipation trough, which provides gas for the air compressor 110 to draw in air. The air drawn in by the air compressor 110 is filtered by a filter plate 113 to prevent dust and impurities from entering the air passage and causing blockage.

[0032] like Figure 1 As shown, indicator light 220 is set to a tri-color light, and an inspection door is provided on the surface of the enclosure 100.

[0033] In this embodiment, the equipment inside the housing 100 is inspected and maintained through the access door. The indicator light 220 is green to indicate normal operation, yellow to indicate abnormal gas supply, and red to indicate gas leak.

[0034] like Figure 2 As shown, the compensation tank 210 and the gas storage tank 111 are made of stainless steel, and the bottom of the gas storage tank 111 and the compensation tank 210 are equipped with drain valves.

[0035] In this embodiment, water in the gas storage tank 111 and the compensation tank 210 is drained through a drain valve (not shown in the figure). Stainless steel tanks are used to prevent corrosion of the tank body and extend its service life.

[0036] Working principle: The air outlet pipe 112 is connected to the air inlet of the printing press. The air tank 111 provides gas to the printing press. The piezoelectric valve 216 regulates the air pressure entering the printing press to keep the air pressure stable. When the air pressure fluctuates, the gas in the compensation tank 210 enters the air outlet pipe 112 through the guide pipe 213 to dynamically compensate the air pressure in the air outlet pipe 112 and ensure the stability of the air pressure.

[0037] It should be noted that the air compressor 110, one-way solenoid valve 214, connecting pipe 211, piezoelectric valve 216, controller 221 and indicator light 220 mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0038] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0039] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A pneumatic force regulation and warning device for a four color printing press, characterized by, include: A housing (100) is provided, wherein an air compressor (110) is fixedly connected inside the housing (100), and an air storage tank (111) connected to the air compressor (110) is fixedly installed inside the housing (100). An air outlet pipe (112) is connected to the air storage tank (111), and an adjustment mechanism (200) is provided inside the housing (100). The regulating mechanism (200) includes a compensation tank (210) fixedly connected inside the housing (100). The compensation tank (210) is connected to the gas storage tank (111) through a connecting pipe (213). Two one-way solenoid valves (214) are symmetrically arranged on the connecting pipe (213). The gas outlet pipe (112) is connected to the connecting pipe (213). A piezoelectric valve (216) is fixedly installed on the gas outlet pipe (112).

2. The pneumatic force regulation and warning device for a four-color printing press according to claim 1, wherein, The housing (100) is provided with a connecting pipe (211), the two ends of which are connected to the gas storage tank (111) and the compensation tank (210) respectively, and a one-way valve (212) is fixedly installed on the connecting pipe (211).

3. The pneumatic force regulation and warning device for a four color press of claim 1, wherein, Pressure sensors (215) are installed on both the gas storage tank (111) and the compensation tank (210). A controller (221) electrically connected to the pressure sensor (215) is provided on the outer surface of the housing (100). An indicator light (220) electrically connected to the controller (221) is provided on the top of the housing (100).

4. The pneumatic force regulation and warning device for a four color press of claim 1, wherein, Four air outlet pipes (112) are provided, and each air outlet pipe (112) is connected to a four-color printing machine through a pipe.

5. The pneumatic force regulation and warning device for a four color press of claim 4, wherein, One end of the vent pipe (112) is provided with a quick-connect fitting, and the vent pipe (112) is marked.

6. The pneumatic adjustment and early warning device for a four-color printing press according to claim 1, characterized in that, The housing (100) has a heat dissipation groove corresponding to the air compressor (110) on the side near the air compressor (110), and a filter plate (113) corresponding to the heat dissipation groove is inserted into the inner wall of the housing (100).

7. The pneumatic force regulation and warning device for a four color press of claim 3, wherein, The indicator light (220) is a tri-color light, and the surface of the housing (100) is provided with an inspection door.

8. The pneumatic force regulation and warning device for a four color press of claim 1, wherein, The compensation tank (210) and the gas storage tank (111) are stainless steel tanks, and the bottom of the gas storage tank (111) and the compensation tank (210) are provided with drain valves.

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