Dust removing device for printing equipment

Abstract

The utility model discloses a dust removing device for printing equipment, and belongs to the technical field of printing equipment. Comprising side plates which are symmetrically arranged, the lower ends of the side plates are provided with printing cylinders which are rotationally connected, the upper ends of the side plates are provided with a cross beam, the cross beam is provided with a sliding mechanism, the sliding mechanism is provided with an L-shaped mounting plate, one end of the L-shaped mounting plate is fixed to the sliding mechanism, and the other end of the L-shaped mounting plate is provided with an adjusting nut. A threaded pipe matched with the adjusting nut is arranged on the adjusting nut, one end of the threaded pipe is provided with a horn-mouth-shaped dust collection cavity, the dust collection cavity is located over the printing roller, a fixing plate is arranged on the outer side of the upper end of the side plate on one side, a dust collection fan is arranged on the fixing plate, and an air inlet pipe of the dust collection fan is connected to the upper end of the threaded pipe. The technical scheme is used for solving the problem that the distance between the cleaning part of an existing dust cleaning device and the printing cylinder is fixed and is difficult to be suitable for dust cleaning of printing cylinders with different diameters.

Description

Technical Field

[0001] The utility model belongs to the technical field of printing equipment, and in particular relates to a dust removing device for printing equipment. Background Art

[0002] Printing machinery is a general term for mechanical equipment such as printing presses, bookbinding machines, plate-making machines, and other auxiliary mechanical equipment. These mechanical equipment have different performances and uses, so the mechanical forms that make them up are not exactly the same. Modern printing presses are generally composed of mechanisms such as plate loading, inking, embossing, and paper feeding. When it is working, the text and images to be printed are first made into printing plates, which are installed on the printing press. Then, the ink is applied to the places with text and images on the printing plates by humans or printing machines, and then directly or indirectly transferred to paper or other substrates, thereby replicating printed products that are the same as the printing plates.

[0003] During the printing process, it is easy for the ink on the paper just printed to be not dry or the roller to be not sealed, which will easily lead to the leaving of powder on the printing roller, and thus make the printing roller contaminated with dust and impurities, which not only causes different degrees of pollution of paper products, but also easily further pollutes the paper and reduces the quality of printed products. During the production process, powders such as powder and dust impurities float in the printing working environment, which not only pollutes the working environment, but also causes certain harm to the health of workers in the long run.

[0004] In the prior art, there are devices for removing dust, such as a dust removal device for printing equipment with patent number CN201820055278.2, which includes a base, two first support frames are fixedly installed on the top of the base, a same printing roller is rotatably installed between the two first support frames, a same first support plate is fixedly installed on the top of the two first support frames, and a first support block and other components are slidably installed on the top of the first support plate, so as to clean the dust on the printing roller.

[0005] Although the above-mentioned device in the prior art can achieve the effect of cleaning the dust on the printing cylinder, the distance between the cleaning part and the printing cylinder is fixed. After replacing the printing cylinder of different sizes, the distance between the cleaning part and the printing cylinder changes, which will affect the dust cleaning effect. Utility Model Content

[0006] In view of this, the purpose of the utility model is to provide a dust removal device for printing equipment, so as to solve the problem that the distance between the cleaning part of the dust cleaning device and the printing roller in the prior art is fixed, making it difficult to apply it to dust removal of printing rollers with different diameters.

[0007] In order to achieve the above object, the utility model provides the following technical solutions:

[0008] A dust removal device for printing equipment comprises symmetrically arranged side plates, the lower end of the side plates being provided with a rotatably connected printing roller, the upper end of the side plates being provided with a cross beam, the cross beam being provided with a sliding mechanism, the sliding mechanism being provided with an L-shaped mounting plate, one end of the L-shaped mounting plate being fixed to the sliding mechanism, the other end of the L-shaped mounting plate being provided with an adjusting nut, the adjusting nut being provided with a matching threaded tube, one end of the threaded tube being provided with a trumpet-shaped dust suction chamber, the dust suction chamber being located directly above the printing roller, a fixing plate being provided on the outer side of the upper end of one side of the side plates, a dust suction fan being provided on the fixing plate, and an air inlet pipe of the dust suction fan being connected to the upper end of the threaded pipe.

[0009] Furthermore, a rubber plug is provided on the air inlet pipe of the dust suction fan, and the rubber plug is in close contact with the inner wall of the threaded tube.

[0010] Furthermore, the sliding mechanism includes a screw, one end of which is fixed to the side plate, and the other end of the screw is provided with a rotating motor, and the rotating motor is fixed to the side plate on the other side. The screw is provided with a threaded slider, and the threaded slider is sleeved on the screw, and the L-shaped mounting plate is fixed on the threaded slider.

[0011] Furthermore, polished rods are symmetrically provided at both ends of the threaded slider, the polished rods are slidably connected to the threaded slider, and the two ends of the polished rods are fixed to the side plates.

[0012] Furthermore, a dust box is provided on the air outlet pipe of the dust suction fan, a filter is provided inside the dust box, the space on one side of the filter is connected to the air outlet pipe, and an air outlet is provided on the side of the dust box on the other side of the filter.

[0013] Furthermore, a threaded sleeve is provided at one end where the dust suction chamber and the threaded pipe are connected. One end of the threaded sleeve is fixed to the dust suction chamber, and the other end of the threaded sleeve is threadedly connected to the threaded pipe.

[0014] Furthermore, the air inlet pipe of the dust suction fan is a bellows.

[0015] Furthermore, the distance between the dust suction chamber and the printing roller is 1-3 mm.

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

[0017] In the present technical solution, after replacing rollers of different diameters, one only needs to rotate the threaded tube to move the thread up and down in the adjusting nut, thereby adjusting the spacing, so that the dust suction chamber and the printing roller are at an optimal dust suction distance, thereby improving the dust removal effect on the printing roller. That is, the present technical solution can remove dust from printing rollers of different sizes, and the removal effect is good.

[0018] Other advantages, objectives and features of the utility model will be described in the following description and will be apparent to those skilled in the art to some extent, or those skilled in the art can be taught from the practice of the utility model. The objectives and other advantages of the utility model can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the purpose, technical solution and beneficial effects of the utility model clearer, the utility model provides the following drawings for explanation:

[0020] Figure 1 It is a three-dimensional schematic diagram of the dust removal device in the utility model;

[0021] Figure 2 It is a three-dimensional schematic diagram of the dust removal device in the utility model from another perspective;

[0022] Figure 3 It is a schematic diagram of a front view and a cross-sectional view of the dust removing device in the utility model.

[0023] The following are marked in the accompanying drawings:

[0024] Side panel 1, cross beam 2, screw rod 3, threaded slider 4, polished rod 5, rotating motor 6, L-shaped mounting plate 7, threaded pipe 8, adjusting nut 9, threaded sleeve 10, dust suction chamber 11, printing roller 12, air inlet pipe 13, dust suction fan 14, dust collecting box 15, air outlet 16, filter screen 17, fixing plate 18. DETAILED DESCRIPTION

[0025] like Figure 1-Figure 3 As shown, a dust removal device for printing equipment includes symmetrically arranged side panels 1, and the lower end of the side panels 1 is provided with a rotatably connected printing roller 12. It should be noted that the printing structure and principle of the printing roller 12 are prior art and will not be described in detail herein. A crossbeam 2 is provided at the upper end of the side panel 1, and the two ends of the crossbeam 2 are respectively fixed to the upper ends of the side panels 1 arranged on both sides. A sliding mechanism is provided on the crossbeam 2. The function of the sliding mechanism is to drive an L-shaped mounting plate 7 to slide along the length direction of the printing roller 12. The sliding mechanism is provided with an L-shaped mounting plate 7. One end of the L-shaped mounting plate 7 is fixed on the sliding mechanism, and an adjusting nut 9 is provided on the other end of the L-shaped mounting plate 7. A threaded tube 8 matching the adjusting nut 9 is provided on the adjusting nut 9. The threaded tube 8 refers to a tubular component with threads on the outside. A trumpet-shaped dust suction chamber 11 is provided at one end of the threaded tube 8. The dust suction chamber 11 is located directly above the printing cylinder 12. A fixing plate 18 is provided on the outside of the upper end of one side panel 1. A dust suction fan 14 (also understood as an air pump) is provided on the fixing plate 18. The air inlet pipe 13 of the dust suction fan 14 is connected to the upper end of the threaded tube 8.

[0026] In the above technical solution, the principle of adjusting the distance between the dust suction chamber 11 and the printing roller 12 is:

[0027] After replacing rollers of different diameters, it is only necessary to rotate the threaded tube 8 so that the thread can move up and down in the adjusting nut 9, thereby adjusting the spacing, so that the dust suction chamber 11 and the printing roller 12 are at an optimal dust suction spacing, thereby improving the dust removal effect on the printing roller 12; under the action of the sliding mechanism, the dust suction chamber 11 can be driven to slide back and forth in the length direction of the printing roller 12, and combined with the rotation of the printing roller 12, the dust on the entire outer surface of the printing roller 12 can be cleaned.

[0028] In one feasible manner, a rubber plug is provided on the air inlet pipe 13 of the dust suction fan 14, and the rubber plug is in close contact with the inner wall of the threaded tube 8. The arrangement of the rubber plug facilitates the connection and disassembly of the ends between the air inlet pipe 13 and the threaded tube 8. When rotating the threaded tube 8, it is only necessary to pull out the rubber plug.

[0029] In one feasible manner, the sliding mechanism includes a screw rod 3, one end of the screw rod 3 is fixed to the side plate 1, and a rotating motor 6 is provided on the other end of the screw rod 3, and the rotating motor 6 is fixed to the side plate 1 on the other side. A threaded slider 4 is provided on the screw rod 3, and the threaded slider 4 is sleeved on the screw rod 3. An L-shaped mounting plate 7 is fixed on the threaded slider 4. The rotating motor 6 drives the screw rod 3 to rotate. Since the threaded slider 4 is limited by the cross beam 2 and cannot rotate, the threaded slider 4 will translate on the screw rod 3. Only the rotation direction of the rotating motor 6 needs to be controlled to control the moving direction of the threaded slider 4. This sliding mechanism has a simple structure and a good sliding effect, and the translation of the sliding nut is relatively stable.

[0030] In one feasible manner, a light rod 5 is symmetrically provided at both ends of the threaded slider 4, the light rod 5 is slidably connected to the threaded slider 4, and both ends of the light rod 5 are fixed on the side plate 1. The setting of the light rod 5 further limits the rotation of the threaded slider 4 to ensure the sliding stability of the threaded slider 4.

[0031] like Figure 3 As shown, in an practicable manner, a dust box 15 is provided on the air outlet duct of the dust suction fan 14, and the dust box 15 is connected to the side panel 1 through a fixing plate 18. A filter screen 17 is provided inside the dust box 15, and the space on one side of the filter screen 17 is connected to the air outlet duct, and an air outlet hole 16 is provided on the side of the dust box 15 on the other side of the filter screen 17. The dust suction fan 14 discharges dust into the dust box 15, and then the dust-containing air passes through the filter screen 17, the dust is intercepted, and the gas is discharged from the air outlet hole 16. The filter screen 17 can be replaced after a period of use. This method reduces the dust content in the printing environment, while also preventing dust from polluting the air, thereby playing an environmental protection role.

[0032] In one feasible manner, a threaded sleeve 10 is provided at one end where the dust suction chamber 11 and the threaded tube 8 are connected. One end of the threaded sleeve 10 is fixed on the dust suction chamber 11, and the other end of the threaded sleeve 10 is threadedly connected to the threaded tube 8. The threaded sleeve 10 can rotate on the threaded tube 8. This arrangement is intended to fine-tune the angle of the dust suction chamber 11 to ensure that a better dust suction angle is achieved between the dust suction chamber 11 and the printing roller 12 (because after the threaded tube 8 is rotated to a specified height, the angle between the dust suction chamber 11 and the printing roller 12 may change). Of course, a rubber ring may also be provided on the inner wall of the threaded sleeve 10, and the rubber ring may be squeezed and fixed to the end of the threaded tube 8.

[0033] In an practicable manner, the air inlet pipe 13 of the dust suction fan 14 is a bellows, and the length of the bellows can change as the threaded tube 8 moves.

[0034] In an practicable manner, the distance between the dust suction chamber 11 and the printing roller 12 is 1-3 mm, specifically 1 mm. The closer the distance is, the better the dust suction effect is.

[0035] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims

1. A dust removal device for printing equipment, characterized in that: It includes symmetrically arranged side panels, the lower end of the side panels is provided with a rotatably connected printing roller, the upper end of the side panels is provided with a cross beam, the cross beam is provided with a sliding mechanism, the sliding mechanism is provided with an L-shaped mounting plate, one end of the L-shaped mounting plate is fixed to the sliding mechanism, the other end of the L-shaped mounting plate is provided with an adjusting nut, the adjusting nut is provided with a matching threaded tube, one end of the threaded tube is provided with a trumpet-shaped dust suction chamber, the dust suction chamber is located directly above the printing roller, a fixing plate is provided on the outer side of the upper end of one side of the side panel, a dust suction fan is provided on the fixing plate, and an air inlet pipe of the dust suction fan is connected to the upper end of the threaded pipe.

2. The dust removal device for printing equipment according to claim 1, characterized in that: A rubber plug is arranged on the air inlet pipe of the dust suction fan, and the rubber plug is in close contact with the inner wall of the threaded pipe.

3. The dust removal device for printing equipment according to claim 1, characterized in that: The sliding mechanism includes a screw, one end of which is fixed to a side plate, the other end of which is provided with a rotating motor, which is fixed to the side plate on the other side, a threaded slider is provided on the screw, the threaded slider is sleeved on the screw, and the L-shaped mounting plate is fixed on the threaded slider.

4. The dust removal device for printing equipment according to claim 3, characterized in that: Polished rods are symmetrically arranged at both ends of the threaded slider, the polished rods are slidably connected to the threaded slider, and the two ends of the polished rods are fixed to the side plates.

5. The dust removal device for printing equipment according to claim 1, characterized in that: A dust collecting box is arranged on the air outlet pipe of the dust suction fan, a filter is arranged inside the dust collecting box, a space on one side of the filter is communicated with the air outlet pipe, and an air outlet is arranged on the side of the dust collecting box on the other side of the filter.

6. The dust removal device for printing equipment according to claim 1, characterized in that: A threaded sleeve is provided at one end where the dust suction chamber and the threaded pipe are connected. One end of the threaded sleeve is fixed on the dust suction chamber, and the other end of the threaded sleeve is threadedly connected to the threaded pipe.

7. The dust removal device for printing equipment according to claim 1, characterized in that: The air inlet pipe of the dust suction fan is a corrugated pipe.

8. The dust removal device for printing equipment according to claim 1, characterized in that: The distance between the dust suction chamber and the printing roller is 1-3 mm.

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