A printing press pressure adjustment device

Abstract

The present application relates to the technical field of printing presses, and specifically to a pressure adjustment device for a printing press, which includes a housing, a paper outlet is arranged on the side of the housing, a transmission component is installed inside the housing, and one end of the transmission component is connected to the end of a feeding paper roller; a coating component includes a coating component installed inside the housing and away from the side of the paper outlet, and the coating component includes a transfer roller installed on the lower end surface of the transmission component. The pressure adjustment knob of the present application drives the first connecting rod and the second connecting rod to move through the adjustment seat, and drives the pressure roller and the transfer roller on both sides of the first connecting rod to move evenly through the lever principle. The first connecting rod 32 uniformly applies pressure to the OPC drum and the heating roller through the second connecting rod with uniformly distributed pressure, thereby improving the printing effect of the printing press, and the pressure of the transfer and embossing can be evenly adjusted through the scale on the pressure adjustment knob, so that the pressure of the printing press can be adjusted according to the actual printing effect, which is convenient for workers to operate.

Description

Technical Field

[0001] The present application relates to the technical field of printing presses, and in particular to a pressure adjustment device for a printing press. Background Art

[0002] Paper printing machine is a kind of equipment specially used for printing cardboard or paper packaging materials. Cardboard printing machine plays an important role in the packaging industry and is widely used in food packaging, pharmaceutical packaging, electronic product packaging and other fields. It can improve printing efficiency and quality and meet the needs of different customers for packaging products.

[0003] At present, printing presses often need to print on a variety of different specifications of paper. However, due to the differences in material, thickness and coating method, the printing effects of ink on paper of different specifications are different. It is necessary to adjust the pressure of the pressure roller on the printing press. In order to adjust the pressure of the existing printing press, the printing press needs to be turned off, and the chassis needs to be opened to adjust the axial distance between the pressure roller and the heating roller to adjust the pressure of the pressure roller. The operation is very troublesome and affects work efficiency. It is difficult to ensure that the joint part of the pressure roller and the heating roller is evenly stressed through manual adjustment, resulting in poor printing effect in some areas of the cardboard printed by the printing press.

[0004] Therefore, we propose a printing press pressure adjustment device to solve the above-mentioned problems. Utility Model Content

[0005] In view of the deficiencies existing in the above-mentioned background technology, the present application provides a printing press pressure adjustment device, aiming to solve the technical problems raised in the background technology.

[0006] The scheme adopted by the utility model is as follows: the pressure adjustment device of the printing press comprises a casing, a paper outlet is arranged on the side of the casing, a transmission component is installed inside the casing, and one end of the transmission component is closely connected with the end of the feeding paper roller; a coating component comprises a coating component installed inside the casing and away from the side of the paper outlet, the coating component comprises a transfer roller installed on the lower end surface of the transmission component, an OPC drum is installed inside the casing, the OPC drum is located above the transfer roller and is respectively located on both sides of the transmission component with the transfer roller; an imprinting component comprises a heating roller and a pressure roller installed inside the casing, the pressure roller and the heating roller are located at the bottom of the casing, and the pressure roller and the heating roller are respectively located at the bottom of the casing. On the upper and lower sides of the transmission component; a pressure regulating knob is installed on the upper end surface of the casing, and a threaded hole is provided on the pressure regulating knob; a transmission component, including an adjusting seat installed on the upper end surface of the transmission component in the casing, an adjusting stud is provided on the upper end surface of the adjusting seat, and the other end of the adjusting stud is threadedly connected with the threaded hole on the pressure regulating knob, a first connecting rod is installed in the casing, through holes are provided at both ends of the first connecting rod, a second connecting rod is installed in the through hole, and both ends of the second connecting rod are respectively hinged to the shaft diameters of the pressure roller and the transfer roller, a U-shaped frame is provided on the upper part of the second connecting rod, and a horizontal connecting rod on the U-shaped frame is connected to the through hole of the first connecting rod.

[0007] A further solution of the utility model is that the coating component also includes a charging roller installed above the OPC drum near the paper outlet, a developing roller is installed on the side of the OPC drum away from the paper outlet, and a sponge roller is installed on the side of the developing roller away from the paper outlet.

[0008] A further solution of the utility model is that the charging roller is closely fitted with the OPC drum, and the developing roller is closely fitted with the OPC drum.

[0009] A further solution of the utility model is that a rotating sleeve is installed at the shaft diameter of the heating roller and the transfer roller, and the two ends of the second connecting rod are respectively hinged to the rotating sleeves of the shaft diameter of the pressure roller and the transfer roller.

[0010] A further solution of the utility model is that the first connecting rod is rotatably connected to the adjustment seat.

[0011] A further solution of the utility model is that a pressure adjustment scale is provided on the pressure adjustment knob.

[0012] A further solution of the utility model is that a paper feeding roller is installed on the housing, and the paper feeding roller is located below the housing and biased towards the paper outlet.

[0013] Beneficial effects of the utility model:

[0014] The pressure adjustment knob drives the first connecting rod and the second connecting rod to move through the adjustment seat, and drives the pressure roller and the transfer roller on both sides of the first connecting rod to move evenly through the lever principle. The first connecting rod applies pressure to the OPC drum and the heating roller evenly through the second connecting rod with evenly distributed pressure, thereby improving the printing effect of the printing press. The transfer and embossing pressure can be evenly adjusted through the scale on the pressure adjustment knob, so that the pressure of the printing press can be adjusted according to the actual printing effect, which is convenient for workers to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0017] Figure 3 The utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0018] Figure numerals: 10, casing; 11, paper outlet; 12, paper feed roller; 13, transmission component; 14, pressure adjustment knob; 141, threaded hole; 21, heating roller; 22, pressure roller; 23, transfer roller; 24, OPC drum; 25, charging roller; 26, developing roller; 27, sponge roller; 31, adjustment seat; 311, adjustment stud; 32, first connecting rod; 33, second connecting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] Reference Figure 1-Figure 3A printing press pressure adjustment device includes a housing 10, a paper outlet 11 is arranged on the side of the housing 10, a paper feed roller 12 is installed on the housing 10, the paper feed roller 12 is located below the housing 10 and biased to the side of the paper outlet 11, a transmission component 13 is installed inside the housing 10, one end of the transmission component 13 is closely connected with the end of the paper feed roller 12, and the other end of the transmission component 13 is located at the end of the paper outlet 11, a coating component is installed on the housing 10, the coating component includes a coating component installed inside the housing 10 and away from the side of the paper outlet 11, the coating component includes a transfer roller 23 installed on the lower end surface of the transmission component 13, and a pressure regulating device is installed on the housing 10. The printing assembly includes a heating roller 21 and a pressure roller 22 installed inside the housing 10. The pressure roller 22 and the heating roller 21 are located on both sides of the transmission component 13. A pressure regulating knob 14 is installed on the upper end surface of the housing 10. A threaded hole 141 is provided on the pressure regulating knob 14. The pressure regulating knob 14 drives the pressure roller 22 and the transfer roller 23 to move in the housing 10 through the transmission assembly. The transmission component includes an adjustment seat 31 installed on the upper end surface of the transmission component 13 in the housing 10. An adjustment stud 311 is provided on the upper end surface of the adjustment seat 31. The other end of the adjustment stud 311 is threadedly connected with the threaded hole 141 on the pressure regulating knob 14.

[0021] After starting the device, the transmission component 13 transfers the paper on the feeding paper roller 12 to the stamping component after being coated with paint through the coating component, etc., and the pressure adjustment knob 14 drives the adjustment stud 311 to move upward, and moves the transfer roller 23 upward, so that the paint is evenly and completely printed on the paper. After the paper and the paint are heated by the heating roller 21, the adjustment stud 311 drives the adjustment seat 31 to move upward, thereby driving the two sides of the pressure roller 22 to move upward evenly, and the pressure roller 22 squeezes the heated part of the heating roller 21 and the paper upward with a certain pressure, so that the pigment is evenly printed on the paper after being heated, thereby improving the printing effect of the printing press.

[0022] The coating component also includes an OPC drum 24 installed on the upper end surface of the transmission component 13, a charging roller 25 is installed on the upper side of the OPC drum 24 near the paper outlet 11, and the charging roller 25 is closely attached to the OPC drum 24, a developing roller 26 is installed on the side of the OPC drum 24 away from the paper outlet 11, and the developing roller 26 is closely attached to the OPC drum 24, and a sponge roller 27 is installed on the side of the developing roller 26 away from the paper outlet 11, and the developing roller 26 is closely attached to the sponge roller 27. A laser irradiation lamp is installed inside the housing 10, and the laser irradiation lamp can be used to The OPC drum 24 is directly irradiated, so that the surface of the OPC drum 24 is added with positive charge according to a certain design. The charging roller 25 is used to add negative charge to the surface of the OPC drum 24. The sponge roller 27 is used to provide the printed toner to the developing roller 26 and clean the toner that is not adsorbed on the surface of the developing roller 26, so as to ensure that the printed content is not affected by the toner on the developing roller 26. The toner on the surface of the developing roller 26 is adsorbed by the positive charge on the surface of the OPC drum 24 during the process of laminating with the OPC drum 24;

[0023] The developing roller 26 rotates to drive the sponge roller 27 and the OPC drum 24 through the conveyor belt, the OPC drum 24 rotates the heating roller 21 through the transmission belt, and the heating roller 21 drives the charging roller 25 to rotate through the transmission belt, thereby printing and imprinting the printed paper.

[0024] The transmission component includes a first connecting rod 32 installed in the casing 10, the first connecting rod 32 is rotatably connected to the adjustment seat 31, through holes are set at both ends of the first connecting rod 32, and the second connecting rod 33 is installed in the through holes. A U-shaped frame is set on the upper part of the second connecting rod 33, and the horizontal connecting rod on the U-shaped frame is connected to the through hole of the first connecting rod 32. A rotating sleeve is installed at the axial diameter of the pressure roller 22 and the transfer roller 23. The two ends of the second connecting rod 33 are respectively hinged to the rotating sleeves of the axial diameter of the pressure roller 22 and the transfer roller 23, and a pressure adjustment scale is set on the pressure adjustment knob 14.

[0025] When the pressure of the pressure roller 22 and the transfer roller 23 is adjusted, the pressure adjustment knob 14 is rotated to adjust according to the pressure scale on the pressure adjustment knob 14. The pressure adjustment knob 14 drives the adjustment seat 31 to move up and down through the adjustment stud 311. The adjustment seat 31 drives the first connecting rod 32 to move. The first connecting rod 32 drives the second connecting rod 33 to move. The pressure roller 22 and the transfer roller 23 on both sides of the first connecting rod 32 are evenly driven to move through the lever principle. The first connecting rod 32 uniformly applies pressure to the OPC drum 24 and the heating roller 21 with uniformly distributed pressure through the second connecting rod 33, thereby improving the printing effect of the printing press. The transfer and embossing pressure can be evenly adjusted through the scale on the pressure adjustment knob 14, so that the pressure of the printing press can be adjusted according to the actual printing effect, which is convenient for workers to operate.

[0026] The above description is only for illustrating the present invention, and it should be understood that the present invention is not limited to the above embodiments, and various variations that conform to the concept of the present invention are within the protection scope of the present invention.

Claims

1. A printing press pressure adjustment device, characterized in that: include: A casing (10), wherein a paper outlet (11) is arranged on a side of the casing (10), a transmission component (13) is installed inside the casing (10), and one end of the transmission component (13) is closely connected to an end of a paper feeding roller (12); A coating component, comprising a coating component installed inside a housing (10) and away from a side of a paper outlet (11), the coating component comprising a transfer roller (23) installed on a lower end surface of a transmission component (13), an OPC drum (24) installed inside the housing (10), the OPC drum (24) being located above the transfer roller (23) and being located on both sides of the transmission component (13) with the transfer roller (23); A stamping assembly, comprising a heating roller (21) and a pressure roller (22) installed inside the housing (10), wherein the pressure roller (22) and the heating roller (21) are located at the upper and lower sides of the transmission component (13); A pressure regulating knob (14) is mounted on the upper end surface of the housing (10), and a threaded hole (141) is formed on the pressure regulating knob (14); The transmission component comprises an adjustment seat (31) installed on the upper end surface of the transmission component (13) in the casing (10); the upper end surface of the adjustment seat (31) is provided with an adjustment stud (311); the other end of the adjustment stud (311) is threadedly connected to the threaded hole (141) on the pressure adjustment knob (14); a first connecting rod (32) is installed in the casing (10); through holes are provided at both ends of the first connecting rod (32); a second connecting rod (33) is installed in the through hole; the two ends of the second connecting rod (33) are respectively hinged to the shaft diameters of the pressure roller (22) and the transfer roller (23); a U-shaped frame is provided on the upper part of the second connecting rod (33); a horizontal connecting rod on the U-shaped frame is connected to the through hole of the first connecting rod (32).

2. The printing press pressure adjustment device according to claim 1, characterized in that: The coating component also includes a charging roller (25) mounted above the OPC drum (24) on a side close to the paper outlet (11); a developing roller (26) is mounted on a side of the OPC drum (24) away from the paper outlet (11); and a sponge roller (27) is mounted on a side of the developing roller (26) away from the paper outlet (11).

3. The printing press pressure adjustment device according to claim 2, characterized in that: The charging roller (25) is in close contact with the OPC drum (24), and the developing roller (26) is in close contact with the OPC drum (24).

4. The printing press pressure adjustment device according to claim 1, characterized in that: The heating roller (21) and the transfer roller (23) are provided with rotating sleeves at their axial diameters, and the two ends of the second connecting rod (33) are respectively hinged to the rotating sleeves at the axial diameters of the pressure roller (22) and the transfer roller (23).

5. The printing press pressure adjustment device according to claim 4, characterized in that: The first connecting rod (32) is rotatably connected to the adjustment seat (31).

6. The printing press pressure adjustment device according to claim 1, characterized in that: The pressure regulating knob (14) is provided with a pressure regulating scale.

7. The printing press pressure adjustment device according to claim 1, characterized in that: A paper feeding roller (12) is installed on the housing (10), and the paper feeding roller (12) is located below the housing (10) and towards the side of the paper outlet (11).

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