Directional air suction and flow guide photo machine printing platform

Abstract

A platform plate assembly of the photo machine printing platform comprises an air suction plate body and an air suction groove body installed on the bottom face of the air suction plate body, an air suction cavity is formed between the air suction groove body and the air suction plate body, a plurality of air suction openings are evenly formed in the bottom face of the air suction groove body in the length direction of the air suction groove body, and turbine fans are installed at the air suction openings. An outlet of the turbofan is vertically connected with an air duct; an air outlet plate is arranged at the lower end of the air guide cylinder, grating holes corresponding to a lower port of the air guide cylinder are formed in the air outlet plate, the inner end of the air outlet plate is fixedly connected with the outer side face of the main machine cross beam, and the inner end of the air outlet plate is connected with an inner supporting plate of the paper feeding shell of the air suction plate body; according to the printing platform, airflow generated by air suction of the fan is guided to the air outlet plate on the lower portion through the air guide barrel arranged in the printing platform and discharged out of the grating holes formed in the air outlet plate, airflow is prevented from being generated in a closed area on the lower portion of the air suction plate body, and the situation that the flatness and the fitting degree of paper on the platform are affected due to the fact that the airflow flows out of gaps is avoided; and the printing quality of the platform is improved.

Description

Technical Field

[0001] The utility model relates to the field of photo printing machine platforms, in particular to a directional air suction and flow guiding printing platform for a photo printing machine. Background Art

[0002] The printing platform of the photo machine is the supporting surface of the printing material, and needs to be able to bear the weight of the printing material. The printing platform of the photo machine is usually designed with many regularly distributed small holes. The paper suction fan under the platform works at the same time. The fan rotates to suck air to form a negative pressure air flow, and a small suction force is generated through the small holes on the platform to suck the paper flat. In this way, the printing paper medium can be close to the printing platform without arching, thereby ensuring that the photo machine prints more smoothly, ensuring that there is no displacement or deformation during the printing process, avoiding image distortion, blur or ghosting caused by unevenness of the paper during the printing process, and improving the printing quality. At present, because the fan is installed on the bottom surface of the platform, the airflow generated by the fan suction is directly discharged into the closed area between the printing platform and the paper feed shell, and will flow out from the gap between the platform and the paper feed shell above the closed area, which will affect the flatness and fit of the paper on the platform, and then affect the printing quality, which needs to be improved. Utility Model Content

[0003] In order to solve the above problems, the utility model proposes a directional air suction and flow guide printing platform for a photo printing machine.

[0004] The technical scheme of the utility model is: a directional air suction and air flow guiding photo printing machine printing platform, comprising a platform plate assembly installed on a mainframe crossbeam through a plurality of brackets arranged side by side, the mainframe crossbeam is an aluminum alloy profile, the platform plate assembly comprises an air suction plate body and an air suction slot body installed on the bottom surface of the air suction plate body, the upper port of the air suction slot body is provided with a right-angle flange, the surface of the air suction plate body is densely covered with a plurality of air suction holes, an air suction chamber is formed between the air suction slot body and the air suction plate body, a plurality of circular air suction ports are evenly arranged on the bottom surface of the air suction slot body along its length direction, a turbo fan is installed at the air suction port, and an air guide tube is vertically connected to the outlet of the turbo fan; an air outlet plate is provided at the lower end of the air guide tube, a certain distance is provided between the lower port of the air guide tube and the air outlet plate, a grille hole corresponding to the lower port of the air guide tube is provided on the air outlet plate, the inner end of the air outlet plate is fixedly connected to the outer side surface of the mainframe crossbeam, and the inner end is connected to the inner support plate of the paper feeding shell of the air suction plate body, and the paper feeding shell is an arc shell structure.

[0005] Preferably, two ear plates are symmetrically provided on both sides of the docking interface at the upper end of the air guide tube, screw holes are provided on the ear plates, and the air guide tube is connected to the bottom surface of the air suction slot body through the ear plates.

[0006] Preferably, an adjusting compression spring is provided on the upper end surface of the bracket. A guiding column can be installed in the adjusting compression spring. A through hole is provided at a position corresponding to the adjusting compression spring on the air suction groove body. The size of the through hole is larger than that of the adjusting compression spring. The adjusting compression spring passes through the through hole and supports on the bottom surface of the air suction plate body.

[0007] Preferably, a silica gel sleeve is provided outside the adjusting compression spring. The silica gel sleeve is hoop-shaped on the outer side surface of the adjusting compression spring. The upper end of the silica gel sleeve contacts the bottom surface of the air suction plate body, and the lower end contacts the upper end surface of the bracket.

[0008] Preferably, a right-angle bending structure for improving the anti-deformation strength is provided in the middle of the inner support plate.

[0009] Preferably, the air outlet plate is connected to the lower part of the side surface of the main machine cross beam through a plurality of triangular seats arranged side by side. The triangular seats are fixedly connected to the air outlet plate and the main machine cross beam respectively by screws.

[0010] Preferably, the air guiding cylinder is a square cylinder structure, and a folding plate is provided at its upper end to form a contraction butt joint structure.

[0011] Preferably, end plates are installed at both ends of the paper feeding outer shell and its inner support plate, and the end plates play a role of sealing and supporting.

[0012] The beneficial technical effects of the present utility model are:

[0013] (1) The printing platform guides the air flow generated by the fan air suction to the lower air outlet plate through the internally provided air guiding cylinder, and discharges it from the grid holes provided on the air outlet plate, avoiding the generation of air flow in the closed area under the air suction plate body, and will not affect the flatness and adhesion of the paper on the platform due to the air flow flowing out from the gap, which is beneficial to improving the printing quality of the platform.

[0014] (2) The adjusting spring sleeved with a silica gel sleeve provided at the lower part of the printing platform can provide an elastic supporting force with a certain elasticity for the air suction plate body, which is used to offset the elastic deformation force generated by external force during the printing process of the air suction plate body, ensuring the flatness and stability of the air suction plate body. Description of the Drawings

[0015] Figure 1 is one of the three-dimensional structure schematic diagrams of the present utility model;

[0016] Figure 2 is the sectional structure schematic diagram of the present utility model in the A-A direction;

[0017] Figure 3 is the three-dimensional structure schematic diagram of the present utility model after removing the paper feeding outer shell and the air suction plate body;

[0018] Figure 4 is the second three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 5 is a three-dimensional structural schematic diagram of the platform plate assembly, turbine fan and air guide cylinder of the present utility model;

[0020] Figure 6 is a three-dimensional structural schematic diagram of the turbine fan and air guide cylinder of the present utility model.

[0021] In the figure, 11. Main machine cross beam, 12. Bracket, 13. Air suction plate body, 14. Air suction groove body, 141. Air suction chamber, 142. Air suction port, 15. Turbine fan, 16. Air guide cylinder, 161. Folding plate, 162. Ear plate, 17. Air outlet plate, 171. Grille hole, 172. Triangular seat, 18. Paper feeding housing, 181. Inner support plate, 19. Adjusting compression spring, 191. Silicone sleeve. Specific embodiments

[0022] Embodiment 1, referring to the attached drawings of the specification Figure 1-3 、4-6, a directional air suction and diversion photo printer printing platform, including a platform plate assembly installed on the main machine cross beam 11 through a plurality of brackets 12 arranged side by side. The platform plate assembly includes an air suction plate body and an air suction groove body 14 installed on the bottom surface of the air suction plate body. The upper port of the air suction groove body is provided with a vertical flange, and is fixedly connected to the bottom surface of the air suction plate body through this vertical flange. An air suction chamber 141 is formed between the air suction groove body 14 and the air suction plate body. A plurality of air suction ports 142 communicating with the air suction chamber 141 are uniformly arranged along the length direction of the bottom surface of the air suction groove body. A turbine fan 15 is installed at the air suction port 142. A vertical air guide cylinder 16 is connected to the outlet of the turbine fan. The outlet of the turbine fan 15 extends into the inlet at the upper end of the air guide cylinder 16; the lower end of the air guide cylinder is provided with an air outlet plate 17. The air outlet plate is provided with grille holes 171 corresponding to the lower port of the air guide cylinder 16, and the air flow discharged from the air guide cylinder can be discharged from the grille holes 171 in time. The inner end of the air outlet plate 17 is fixedly connected to the outer side surface of the main machine cross beam 11, and the inner end is connected to the inner support plate 181 of the paper feeding housing 18 of the air suction plate body. The air outlet plate 17 is a horizontally arranged plate body, and the middle part of the inner support plate 181 is provided with a right-angle bending structure for improving the anti-deformation strength.

[0023] Two ear plates 162 are symmetrically arranged on both sides of the docking port at the upper end of the air guide cylinder 16. The air guide cylinder is connected to the bottom surface of the air suction groove body 14 through the ear plates. A screw hole is provided in the middle of the ear plate 162, and a screw is installed in the screw hole to fixedly connect the air guide cylinder 16 to the bottom surface of the air suction groove body 14.

[0024] The air outlet plate 17 is connected to the lower part of the side surface of the main machine cross beam 11 through a plurality of triangular seats 172 arranged side by side, ensuring the stability of the fixed connection of the air outlet plate on the main machine cross beam.

[0025] The air guide tube 16 is of a square cylinder structure, and a folding plate 161 is provided at its upper end to form a contracted docking port structure. This closing structure is used for mating and docking with the outlet of the turbine fan on the one hand, and plays a role in downward air diversion on the other hand, improving the air diversion effect. End plates are installed at both ends of the paper feeding housing 18 and its inner support plate 181.

[0026] When the printing platform works, the turbine fan 15 starts to suck air into the chamber inside the air suction trough body 14. A negative pressure is generated inside the air suction chamber 141. The negative pressure acts on the upper surface of the air suction plate body through the small holes on the air suction plate body, adsorbing the printing medium. During the printing process, the turbine fan 15 guides the air flow generated by air suction to the lower air outlet plate 17 through the air guide tube 16, and discharges it in time through the grid holes 171 provided on the air outlet plate 17, avoiding the generation of air flow in the closed area under the air suction plate body. The air flow will not flow out from the gap between the air suction plate body and the paper feeding housing 18, and will not affect the flatness and fitting degree of the printing medium on the platform, ensuring the printing quality of the printing medium on the platform.

[0027] Embodiment 2, see the attached drawings of the specification Figure 1 、 3 , this embodiment is basically the same as the embodiment, and the same parts will not be described again. The difference is that an adjusting compression spring 19 is provided on the upper end surface of the bracket 12. A through hole is provided at the position of the air suction trough body 14 corresponding to the adjusting compression spring 19. The adjusting compression spring passes through this through hole and supports on the bottom surface of the air suction plate body. A silica gel sleeve 191 is provided outside the adjusting compression spring. A small gap is left between the through hole and the silica gel sleeve 191 to ensure that the silica gel sleeve can deform elastically normally and does not affect the stability of the negative pressure inside the air suction chamber 141. The upper end of the silica gel sleeve 191 contacts the bottom surface of the air suction plate body, and the lower end contacts the upper end surface of the bracket 12. The adjusting spring sleeved with the silica gel sleeve can provide an elastic supporting force for the air suction plate body to offset the elastic deformation force generated by external forces during the printing process of the air suction plate body, ensuring the flatness and stability of the air suction plate body.

Claims

1. A directional air suction and diversion printing platform for a photo printer, comprising a platform plate assembly mounted on a mainframe crossbeam through a plurality of brackets arranged side by side, characterized in that: The platform plate assembly includes an air suction plate body and an air suction groove body installed on the bottom surface of the air suction plate body, an air suction chamber is formed between the air suction groove body and the air suction plate body, a plurality of air suction ports are evenly arranged on the bottom surface of the air suction groove body along its length direction, a turbo fan is installed at the air suction port, and an air guide tube is vertically connected to the outlet of the turbo fan; an air outlet plate is arranged at the lower end of the air guide tube, grille holes corresponding to the lower ports of the air guide tube are arranged on the air outlet plate, the inner end of the air outlet plate is fixedly connected to the outer side surface of the main frame cross beam, and the inner end is connected to the inner support plate of the paper feeding shell of the air suction plate body.

2. According to claim 1, a directional air suction and diversion printing machine printing platform is characterized by: Two ear plates are symmetrically arranged on both sides of the docking port at the upper end of the air guide tube, and the air guide tube is connected to the bottom surface of the air suction slot body through the ear plates.

3. According to the directional air suction and diversion printing platform of claim 1, it is characterized by: An adjusting compression spring is arranged on the upper end surface of the bracket, and a through hole is arranged at a position of the air suction slot body corresponding to the adjusting compression spring. The adjusting compression spring passes through the through hole and is supported on the bottom surface of the air suction plate body.

4. According to claim 3, the directional air suction and diversion printing machine printing platform is characterized by: A silicone sleeve is arranged on the outer side of the adjusting compression spring, the upper end of the silicone sleeve contacts the bottom surface of the air suction plate body, and the lower end of the silicone sleeve contacts the upper end surface of the bracket.

5. According to claim 1, the directional air suction and diversion printing platform of the photo printing machine is characterized by: A right-angle bending structure for improving the anti-deformation strength is provided in the middle of the inner support plate.

6. According to claim 1, the directional air suction and diversion printing machine printing platform is characterized by: The air outlet plate is connected to the lower side of the mainframe crossbeam through a plurality of triangular seats arranged side by side.

7. The directional air suction and diversion printing platform of claim 1, characterized in that: The air guide tube is a square cylinder structure, and a folding plate is provided at the upper end thereof to form a contraction docking structure.

8. The directional air suction and diversion printing platform of claim 1, characterized in that: End plates are installed at both ends of the paper feeding housing and its inner supporting plate.

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