Gloss oil printing device of offset press

By introducing a liquid level monitoring and control mechanism into the varnish printing unit of an offset printing machine, the problem of insufficient varnish level monitoring was solved, enabling automatic replenishment of varnish and improving printing efficiency.

CN224028642UActive Publication Date: 2026-03-24GUANGDONG HOUDE HUAYING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

The existing offset printing machine's varnish printing unit cannot effectively monitor the varnish level in the oil storage chamber, resulting in decreased printing efficiency and the need to manually add varnish, which wastes time and effort.

Method used

An offset printing machine varnish printing device was designed, which includes a liquid level monitoring and liquid level control mechanism. The liquid level is monitored by a floating block and a guide rod, and the varnish is automatically added by a water pump and a solenoid valve to achieve automatic replenishment.

Benefits of technology

It enables automatic monitoring and replenishment of printing varnish levels, improving equipment efficiency and avoiding the waste of time and effort from manual operation.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224028642U_ABST
    Figure CN224028642U_ABST
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Abstract

The utility model discloses an offset press gloss oil printing device which comprises an equipment shell, an oil storage tank is arranged on the side face of the equipment shell, a motor protection shell is fixedly connected to the side, close to the oil storage tank, of the equipment shell, and a groove for the motor protection shell to be connected in a clamped mode is formed in the oil storage tank. A sealing plate is detachably connected to the top of the oil storage tank, a liquid level monitoring mechanism is arranged on one side of the inner wall of the oil storage tank, and a liquid level control mechanism is arranged on the other side of the inner wall of the oil storage tank. According to the printing gloss oil adding device, through the liquid level control mechanism and the liquid level monitoring mechanism, the liquid level of printing gloss oil in the oil storage tank can be monitored, and after the printing gloss oil is used up, the liquid level can be automatically added, so that the practicability of the device in use is improved, and the phenomenon that the printing gloss oil is manually added to the existing device is avoided; and the time and energy of operators are wasted, and meanwhile, the printing efficiency of the equipment is reduced.
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Description

TECHNICAL FIELD

[0001] The utility model relates to offset press technical field especially relates to a kind of offset press gloss printing device. BACKGROUND

[0002] Offset press is a kind of lithographic press, mainly for printing high-grade commercial printing and packaging printing, its working principle is realized by lithographic printing technology, printing text is first transferred to rubber cylinder, then by rubber cylinder ink is transferred to paper, complete printing process, because of its high efficiency and high quality printing effect, and be widely used in commercial printing, packaging printing etc. Field, and become the mainstream equipment of modern paper printing.

[0003] Such as patent publication No. CN214449482U a kind of offset press gloss printing device, its technical scheme main point is: including adjustment installation shell, the adjustment installation shell is equipped with driven roller mounting bracket, the driven roller mounting bracket is connected with the adjustment installation shell, the driven roller mounting bracket one side is equipped with driven wheel roller, the driven wheel roller both ends are movably connected with driven roller mounting bracket, the driven wheel roller is equipped with oil discharge mechanism, the adjustment installation shell inside is equipped with driving wheel roller, the driving wheel roller one side is equipped with rotary motor, the rotary motor output end is connected with the driving wheel roller, and the rotary motor is electrically connected with external power supply, the driving wheel roller periphery is equipped with wheel bearing, the wheel bearing is movably connected with the driving wheel roller, beneficial effect: the distance of two wheel rollers of the device can be adjusted at will when using, when gloss printing of printing product of different thickness, greatly improve work efficiency.

[0004] But in the prior art, the printing gloss oil level in the oil storage chamber cannot be effectively monitored during the use of the equipment, and after the printing gloss oil in the oil storage chamber is used up, the operator needs to manually add it through the oil supplementing pipe, which not only wastes the time and effort of the operator, but also reduces the printing efficiency of the equipment. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides an offset press gloss printing device.

[0006] To achieve the above object, the utility model adopts the following technical scheme: an offset press gloss printing device, including equipment shell, the side of the equipment shell is provided with oil tank, the side of the equipment shell is fixedly connected with motor protection shell body close to oil tank, the recess for clamping motor protection shell body is formed in the oil tank, the top of the oil tank is detachably connected with sealing plate, the inner wall of the oil tank is provided with liquid level monitoring mechanism on one side, the other side of the inner wall of the oil tank is provided with liquid level control mechanism.

[0007] As a further description of the above technical solutions:

[0008] The liquid level monitoring mechanism comprises a control screen fixedly connected to the surface of the oil storage tank, one side of the surface of the oil storage tank is provided with a warning light, the side of the surface of the oil storage tank close to the warning light is fixedly connected with a buzzer, the inner wall of the oil storage tank and the bottom of the sealing plate are both provided with waterproof proximity switches, the opposite sides of the two waterproof proximity switches are fixedly connected with guide rods, and the outer profiles of the guide rods are provided with floating blocks.

[0009] As a further description of the above technical solutions:

[0010] The liquid level control mechanism comprises a water pump fixedly connected to the other side of the inner wall of the oil storage tank, a three-way pipe two fixedly connected to the end of the water pump, a connecting pipe flange-connected to one end of the three-way pipe two, an inlet pipe flange-connected to the other end of the three-way pipe two, and an electromagnetic valve one arranged on the outer profiles of the connecting pipe and the inlet pipe.

[0011] As a further description of the above technical solutions:

[0012] The liquid level control mechanism further comprises a liquid discharge pipe fixedly connected to the outer profile of the three-way pipe one, a three-way pipe one fixedly connected to the top of the water pump, an outlet pipe fixedly connected to the top of the three-way pipe one, and an electromagnetic valve two arranged on the outer profiles of the liquid discharge pipe and the outlet pipe.

[0013] As a further description of the above technical solutions:

[0014] The inner wall close to the top of the oil storage tank is fixedly connected with a support frame, the sealing plate is clamped on the top of the support frame, a threaded hole penetrating through the support frame is formed in the top of the sealing plate, and a fixing bolt is screwed into the inner wall of the threaded hole.

[0015] As a further description of the above technical solutions:

[0016] The outer profile of the sealing plate is provided with a sealing ring, and the inner wall close to the top of the oil storage tank is provided with a mounting groove.

[0017] The utility model has the advantages of the following beneficial effects:

[0018] Compared with the prior art, the offset press gloss printing device can monitor the liquid level of the printing gloss oil in the oil storage tank through the liquid level control mechanism and the liquid level monitoring mechanism, and automatically add the liquid level after the printing gloss oil is used up, thereby increasing the practicability of the device in use, avoiding the problems of waste of time and energy of the operator and reduction of the printing efficiency of the device due to manual addition of the printing gloss oil. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 Figure 1 is a schematic diagram of the overall front structure of the device of the offset press gloss printing device according to the present application;

[0020] Figure 2 Figure 2 is a schematic diagram of the cross-sectional structure of the oil storage tank of the offset press gloss printing device according to the present application;

[0021] Figure 3 Figure 3 is a schematic diagram of the offset press gloss printing device according to the present application; Figure 1 Figure 4 is an enlarged schematic diagram of position A of the offset press gloss printing device according to the present application.

[0022] LEGEND

[0023] 1, device shell; 2, oil storage tank; 3, sealing plate; 4, motor protection shell; 5, control screen; 6, warning light; 7, buzzer; 8, waterproof access switch; 9, guide rod; 10, floating block; 11, water pump; 12, three-way pipe one; 13, three-way pipe two; 14, connecting pipe; 15, liquid inlet pipe; 16, electromagnetic valve one; 17, threaded hole; 18, fixing bolt; 19, support frame; 20, sealing ring; 21, liquid discharge pipe; 22, liquid outlet pipe; 23, electromagnetic valve two. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] REFERENCE Figures 1-3The utility model provides a kind of offset press gloss printing device, including equipment shell 1, the side of equipment shell 1 is provided with oil storage tank 2, motor protection shell 4 is fixedly connected with one side of equipment shell 1 close to oil storage tank 2, recess for motor protection shell 4 is connected is opened in oil storage tank 2, the top of oil storage tank 2 is detachably connected with sealing plate 3, one side of oil storage tank 2 inner wall is provided with liquid level monitoring mechanism, the other side of oil storage tank 2 inner wall is provided with liquid level control mechanism, the inner wall of oil storage tank 2 close to top is fixedly connected with support frame 19, sealing plate 3 is connected in the top of support frame 19, screw hole 17 is opened in the top of sealing plate 3 and is passed through support frame 19, fixed bolt 18 is screwed in the inner wall of screw hole 17, sealing ring 20 is provided on the outer contour of sealing plate 3, the inner wall of oil storage tank 2 close to top is opened with the mounting groove of sealing ring 20.

[0026] In the equipment use, the liquid level in oil storage tank 2 is monitored using liquid level monitoring mechanism, then the printing gloss oil stored in oil storage tank 2 is transported to equipment shell 1 for use using liquid level control mechanism, when the liquid level is reduced, the equipment can be automatically added, improve the practicability of equipment, and when the equipment is used, the operator detaches sealing plate 3 to repair it when the parts in oil storage tank 2 are damaged, after repair, the operator connects sealing ring 20 on sealing plate 3 with the mounting groove opened in the inner wall of oil storage tank 2, and seals it, and then fixes sealing plate 3 in screw hole 17 by fixed bolt 18.

[0027] Liquid level monitoring mechanism includes control screen 5 fixedly connected on the surface of oil storage tank 2, warning light 6 is provided on one side of the surface of oil storage tank 2, buzzer 7 is fixedly connected on one side of the surface of oil storage tank 2 close to warning light 6, waterproof access switch 8 is installed on one side of the inner wall of oil storage tank 2 and one side of the bottom of sealing plate 3, guide rod 9 is fixedly connected on the opposite side of two waterproof access switches 8, and float block 10 is provided on the outer contour of guide rod 9.

[0028] When the equipment is used, because float block 10 is floating on printing gloss oil, when the liquid level is reduced, float block 10 is also reduced, and when float block 10 is reduced, it can be guided by guide rod 9, when float block 10 contacts with waterproof access switch 8 on the bottom of the inner wall of oil storage tank 2, warning light 6 on the surface of oil storage tank 2 and buzzer 7 can be started to prompt operator that the liquid level is less, and at the same time, electric signal is transmitted to control screen 5, then liquid level control mechanism is started to work through control screen 5, and printing gloss oil is added.

[0029] The liquid level control mechanism comprises a water pump 11 fixedly connected to the other side of the inner wall of the oil storage tank 2, a three-way pipe two 13 fixedly connected to the end of the water pump 11, a connecting pipe 14 flange-connected to one end of the three-way pipe two 13, an inlet pipe 15 flange-connected to the other end of the three-way pipe two 13, the end of the inlet pipe 15 away from the three-way pipe two 13 being provided through the oil storage tank 2, an electromagnetic valve one 16 provided on the outer contour of the connecting pipe 14 and the inlet pipe 15, and a liquid discharge pipe 21 fixedly connected to the outer contour of the three-way pipe one 12. The top of the water pump 11 is fixedly connected to the three-way pipe one 12, the top of the three-way pipe one 12 is fixedly connected to an outlet pipe 22, the end of the outlet pipe 22 away from the water pump 11 is connected to the equipment shell 1, and an electromagnetic valve two 23 is provided on the outer contour of the liquid discharge pipe 21 and the outlet pipe 22.

[0030] When the liquid level is normal and the printing varnish in the oil storage tank 2 needs to be delivered to the equipment shell 1, the electromagnetic valve one 16 on the inlet pipe 15 is closed, the electromagnetic valve one 16 on the connecting pipe 14 is opened, the electromagnetic valve two 23 on the liquid discharge pipe 21 is closed, and the electromagnetic valve two 23 on the outlet pipe 22 is opened. At this time, the operator can start the water pump 11 to deliver the printing varnish in the oil storage tank 2 to the equipment shell 1 through the three-way pipe one 12. When the printing varnish is used up, the electromagnetic valve one 16 on the connecting pipe 14 is closed, the electromagnetic valve one 16 on the inlet pipe 15 is opened, the electromagnetic valve two 23 on the outlet pipe 22 is closed, and the electromagnetic valve two 23 on the liquid discharge pipe 21 is opened. Then, the oil delivery pipe of the printing varnish storage tank outside is connected to the inlet pipe 15, and the printing varnish outside is delivered to the oil storage tank 2 through the inlet pipe 15, the water pump 11, the three-way pipe one 12, and the liquid discharge pipe 21 by the water pump 11, thereby increasing the practicability of the equipment in use.

[0031] Working principle: When the liquid level is normal and the printing varnish in the oil storage tank 2 needs to be delivered to the equipment shell 1, the electromagnetic valve one 16 on the inlet pipe 15 is closed, the electromagnetic valve one 16 on the connecting pipe 14 is opened, the electromagnetic valve two 23 on the liquid discharge pipe 21 is closed, and the electromagnetic valve two 23 on the outlet pipe 22 is opened. At this time, the operator can start the water pump 11 to deliver the printing varnish in the oil storage tank 2 to the equipment shell 1 through the three-way pipe one 12.

[0032] Because the floating block 10 floats on the printing varnish, when the printing varnish is delivered to the oil storage tank 2, the liquid level in the oil storage tank 2 decreases, and the floating block 10 also decreases. The guide rod 9 can guide the floating block 10 when it decreases. When the floating block 10 contacts the waterproof proximity switch 8 at the bottom of the inner wall of the oil storage tank 2, the warning light 6 and the buzzer 7 on the surface of the oil storage tank 2 are started to prompt the operator that the liquid level is low, and an electrical signal is transmitted to the control screen 5. Then, the liquid level control mechanism is started to work by the control screen 5.

[0033] When the printing varnish is used up, the electromagnetic valve 16 on the connecting pipe 14 is closed, then the electromagnetic valve 16 on the liquid inlet pipe 15 is opened, then the electromagnetic valve 23 on the liquid outlet pipe 22 is closed, then the electromagnetic valve 23 on the liquid discharge pipe 21 is opened, then the oil delivery pipe of the printing varnish storage tank outside is connected with the liquid inlet pipe 15, then the printing varnish outside is delivered into the storage tank 2 through the liquid inlet pipe 15, the water pump 11, the three-way pipe 12 and the liquid discharge pipe 21.

[0034] Finally, it should be noted that the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing detailed description of the present application is made with reference to the foregoing embodiments, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A varnish printing apparatus for an offset printing machine, comprising an equipment housing (1), characterized in that: An oil tank (2) is provided on the side of the equipment housing (1). A motor protective housing (4) is fixedly connected to the side of the equipment housing (1) near the oil tank (2). A groove for the motor protective housing (4) to be engaged is provided on the oil tank (2). A sealing plate (3) is detachably connected to the top of the oil tank (2). A liquid level monitoring mechanism is provided on one side of the inner wall of the oil tank (2). A liquid level control mechanism is provided on the other side of the inner wall of the oil tank (2).

2. The offset printing machine varnish printing apparatus according to claim 1, characterized in that: The liquid level monitoring mechanism includes a control panel (5) fixedly connected to the surface of the oil tank (2). A warning light (6) is provided on one side of the surface of the oil tank (2). A buzzer (7) is fixedly connected to the side of the surface of the oil tank (2) near the warning light (6). Waterproof proximity switches (8) are installed on one side of the inner wall of the oil tank (2) and one side of the bottom of the sealing plate (3). Guide rods (9) are fixedly connected to the opposite sides of the two waterproof proximity switches (8). A floating block (10) is provided on the outer contour of the guide rod (9).

3. The offset printing machine varnish printing apparatus according to claim 1, characterized in that: The liquid level control mechanism includes a water pump (11) fixedly connected to the other side of the inner wall of the oil storage tank (2). A three-way pipe (13) is fixedly connected to the end of the water pump (11). A connecting pipe (14) is connected to one end of the three-way pipe (13) by a flange. An inlet pipe (15) is connected to the other end of the three-way pipe (13) by a flange. The end of the inlet pipe (15) away from the three-way pipe (13) is connected through the oil storage tank (2). A solenoid valve (16) is provided on the outer contour of both the connecting pipe (14) and the inlet pipe (15).

4. The offset printing machine varnish printing apparatus according to claim 3, characterized in that: The liquid level control mechanism also includes a drain pipe (21) fixedly connected to the outer contour of the three-way pipe (12). The top of the water pump (11) is fixedly connected to the three-way pipe (12), and the top of the three-way pipe (12) is fixedly connected to the outlet pipe (22). The end of the outlet pipe (22) away from the water pump (11) is connected to the equipment housing (1). Solenoid valves (23) are provided on the outer contours of both the drain pipe (21) and the outlet pipe (22).

5. The offset printing machine varnish printing apparatus according to claim 1, characterized in that: The oil storage tank (2) has a support frame (19) fixedly connected to the inner wall near the top. The sealing plate (3) is snapped onto the top of the support frame (19). The top of the sealing plate (3) has a threaded hole (17) that penetrates the support frame (19). The inner wall of the threaded hole (17) is screwed with a fixing bolt (18).

6. The offset printing machine varnish printing apparatus according to claim 1, characterized in that: A sealing ring (20) is provided on the outer contour of the sealing plate (3), and a sealing ring (20) and a mounting groove are provided on the inner wall of the oil storage tank (2) near the top.

Citation Information

Patent Citations

  • Gloss oil printing device of offset press

    CN214449482U