CN204817110U - Coating machine and oven unit thereof - Google Patents

Abstract

A coater and an oven unit thereof comprise an integral frame with an upper layer and a lower layer, and a static pressure box, a circulating fan and an air return chamber on the side surface of the integral frame. The hot air is blown out from the upper air chamber and the lower air chamber to dry the substrate, then enters the air return chamber through the air return opening, one part of the air entering the air return chamber is discharged from the air outlet, the other part of the air enters the circulating pipeline after being mixed with the fresh air entering the air return chamber from the fresh air opening, the mixture is heated by the heating system to be hot air, the hot air enters the static pressure box under the driving of the circulating fan and then enters the upper air chamber and the lower air chamber from the air inlet, the circulation air is formed by repeating the steps, the uniformity of the speed of the whole circulation air field, the temperature of the air field and the pressure of the air field is greatly improved, no dead angle of the air field exists, the vortex phenomenon is avoided, the circulation air is smoother, the substrate is dried uniformly, the heat energy loss is reduced, the cost is.

Description

Coater and its oven unit

technical field

The utility model relates to coating machine equipment, more specifically, relates to a coating machine and an oven unit thereof.

Background technique

Coating machines are widely used in many new industries, such as optical fields, electronics fields, aerospace fields, and protective film adhesive tape fields. Coat the rolled substrate with a layer of glue, paint or ink with specific functions, and dry it After rewinding.

Referring to Fig. 1 to Fig. 3, in the oven unit 1' of the existing coating machine, the frame 2' and the box body 3' are separately arranged in its structure, and the static pressure box 8' is arranged in the middle part of the frame 2', facing the windward The air inlets of the duct 6' and the lower duct 7' provide heated air, and the heated air is dispersed from the middle of the upper duct 6' and the lower duct 7' to both ends respectively, and then blows out to the substrate for drying, and the cooled air The air is returned from the upper air duct 6' and the lower air duct 7' through the pipeline to the heating system 4', and then enters the upper air duct 6' and the lower air duct 7' through the circulating fan 5' and the static pressure box 8' to heat and dry the substrate , forming a circulating wind field. This kind of upper and lower separation structure has a lot of processing parts, which is inconvenient to assemble and has a high production cost; in addition, the static pressure part is set in the middle of the oven unit, and the structural setting of the return air makes the circulating wind field have a certain dead angle, and the air flow is not good. It is smooth, and vortex is easy to appear, which is easy to cause uneven drying, excessive heat loss, and waste of resources. Overall, the oven unit with this structure is relatively low-end equipment, poor performance, and low production efficiency.

Utility model content

The purpose of this utility model is to provide a coating machine and its oven unit, which solves the problem that the existing coating machine oven unit has a certain dead angle in the circulating air field, the air flow is not smooth, and it is easy to cause uneven drying and excessive heat loss. Waste of resources, and many processing parts, inconvenient assembly problems.

According to one aspect of the utility model, the utility model proposes an oven unit of a coating machine, which includes an integral frame with upper and lower layers.

The upper layer of the overall frame is provided with an upper wind chamber and a lower wind chamber extending along the length direction of the oven unit; between the upper wind chamber and the lower wind chamber is a substrate transmission channel, and the upper wind chamber and the lower wind chamber can respectively control the upper and lower air chambers of the substrate. The surface and the lower surface are blown and dried; the sides of the upper air chamber and the lower air chamber are respectively provided with air inlets, and the air inlets are all close to one end of the length direction of the oven unit; The side of the other end in the length direction of the unit is provided with two return air outlets spaced up and down.

A circulation pipeline is arranged in the lower layer of the overall frame, and a heating system is arranged in the circulation pipeline.

The side of the overall frame is provided with a circulation fan, a static pressure box and a return air chamber; the upper part of the static pressure box communicates with the air inlet, and the lower part of the static pressure box communicates with the circulation duct through the circulation fan The outlet end of the air return chamber is connected; the upper part of the return air chamber is connected with the air return port, and the lower part of the return air chamber is connected with the inlet end of the circulation pipe; the upper part of the return air chamber is also provided with an air exhaust port, There is also a fresh air vent in the lower part.

Further, an air return hood is provided corresponding to the two air return ports in the overall frame, and the air return hood is provided with a plurality of ventilation holes for collecting air discharged from the upper air chamber and the lower air chamber.

Further, the height position of the air outlet is located in the middle between the two return air outlets.

Further, the circulation fan and the static pressure box are arranged on the same side of the oven unit.

Further, the return air chamber is arranged on the same side of the oven unit as the circulating fan and the static pressure box.

Further, the upper air chamber and the lower air chamber are provided with a plurality of air nozzles towards the substrate conveying channel, and the upper air chamber and the lower air chamber are equipped with the upper surface and the lower surface of the substrate through the plurality of air nozzles. Tumble dry.

According to another aspect of the present utility model, the present utility model provides a coating machine, comprising the above-mentioned oven unit.

Compared with the prior art, the utility model has the following beneficial effects: the oven unit of the coating machine in the utility model has an upper and lower two-layer integral frame, and the heating air in the lower layer of the integral frame passes through the static pressure box at the end of the integral frame The air is sent into the upper and lower air chambers, the air flows from one end of the upper and lower air chambers to the other end, and is blown out to the substrate to dry the substrate, and the air that has absorbed the moisture of the substrate returns to the return air through the return air outlet on the side After the upper and lower return air is mixed in the return air chamber, part of the return air is discharged through the exhaust port, and the other part of the return air passes through the circulation pipe in the lower layer of the overall frame from the lower part of the return air chamber, and then heated to form a circulating air. From the point of view of the entire circulating wind field, firstly, the uniformity of the wind field speed, wind field temperature, and wind field pressure has been greatly improved; The phenomenon of uneven drying of the base material; again, the exhaust outlet is in the middle of the two return air outlets, so that the return air can be fully mixed and then discharged, further improving the wind field; finally, there is no return air dead angle, and the entire cabinet is improved at the same time The speed of the wind field makes the wind speed more uniform and avoids the phenomenon of vortex. The new air outlet set in the lower part of the return air chamber can compensate the air volume drawn by the exhaust outlet, forming mixed air for reuse. The oven unit of the coating machine of the utility model reduces heat energy loss, has fewer processing parts, is convenient for installation and debugging, and greatly improves production efficiency; in addition, the utility model coating machine and its oven unit have a compact structure and reduce floor space.

Description of drawings

Fig. 1 is a schematic side view of an oven unit in the prior art.

Fig. 2 is a schematic view of the end face structure of the prior art oven unit.

Fig. 3 is a top structural schematic view of an oven unit in the prior art.

Fig. 4 is a schematic diagram of a three-dimensional structure of an oven unit according to Embodiment 1 of the present utility model.

Fig. 5 is a three-dimensional structural schematic diagram of another angle of an oven unit according to the embodiment of the present utility model.

Fig. 6 is a schematic view of the side structure of an oven unit according to an embodiment of the present invention.

Fig. 7 is a schematic view of another side structure of an oven unit according to the embodiment of the present invention.

Fig. 8 is a top view structural diagram of an oven unit according to an embodiment of the present utility model.

Fig. 9 is a schematic view of the end surface structure of the air inlet end of an oven unit according to Embodiment 1 of the utility model.

Fig. 10 is a schematic view of the end face structure of the air return end of the oven unit in Embodiment 1 of the present utility model.

Fig. 11 is a schematic diagram of air flow at the air return end of an oven unit according to Embodiment 1 of the present utility model.

Fig. 12 is a schematic perspective view of the three-dimensional structure of the oven unit in Embodiment 2 of the present invention.

Wherein, the reference signs are explained as follows:

1', oven unit; 2', frame; 3', cabinet; 4', heating system; 5', circulation fan; 6', upper air duct; 7', lower air duct; 8', static pressure box; 2 , Fresh air outlet; 3, Heating system; 4, Circulating fan; 5, Upwind chamber; 51, Air inlet of upper wind chamber; 6, Downwind chamber; 9. Exhaust pipe; 10. Return air outlet; 11. Circulation duct; 12. Return air chamber; 13. Return air hood; 14. Maintenance door;

Detailed ways

In order to further illustrate the principle and structure of the utility model, the preferred embodiments of the utility model will be described in detail in conjunction with the accompanying drawings.

Embodiment one

Referring to FIG. 4 to FIG. 11 , this embodiment provides a coating machine, especially an oven unit of the coating machine. The oven unit of the coating machine includes an integral frame with upper and lower layers.

The upper layer of the overall frame is provided with an upper wind chamber 5 and a lower wind chamber 6 extending along the length direction of the oven unit, and the inner diameters of the upper wind chamber 5 and the lower wind chamber 6 gradually narrow along the air supply direction, further, the upper wind chamber 5 and the lower wind chamber 6 The inner diameter may be constant along the air supply direction. Between the upper wind chamber 5 and the lower wind chamber 6 is the substrate transmission channel, and the upper wind chamber 5 and the lower wind chamber 6 can blow and dry the upper surface and the lower surface of the substrate respectively; further, the upper wind chamber 5 and the lower wind chamber 6 face the substrate The material transmission path is provided with a plurality of air nozzles 7, and the upper air chamber 5 and the lower air chamber 6 are used to blow and dry the upper surface and the lower surface of the substrate through the air nozzles 7. The sides of the upper air chamber 5 and the lower air chamber 6 are respectively provided with air inlets, as shown in Figure 6, the air inlet 51 of the upper air chamber and the air inlet 61 of the lower air chamber are all close to one end of the oven unit length direction; the upper layer of the overall frame is in the oven unit length direction Two return air outlets 10 spaced up and down are provided on the side of the other end, and a return air cover 13 is provided corresponding to the two return air outlets 10 in the overall frame. The return air cover 13 is provided with a plurality of ventilation holes for collecting The air discharged from the upper wind chamber 5 and the lower wind chamber 6. Further, in this embodiment, the two return air outlets 10 are arranged symmetrically with respect to the upper air chamber 5 and the lower air chamber 6 .

A circulation pipeline 11 is arranged in the lower layer of the overall frame, and a heating system 3 is arranged in the circulation pipeline 11 .

The side of the overall frame is provided with a circulation fan 4, a static pressure box 8 and a return air chamber 12, and further, in the present embodiment, the circulation fan 4, the static pressure box 8 and the return air chamber 12 are arranged on the same side of the oven unit; The bottom of the case 8 is also provided with an inspection door 14 for personnel to enter for inspection.

The top of the static pressure box 8 communicates with the air inlet 51 of the upper wind chamber and the air inlet 61 of the lower wind chamber, and the bottom of the static pressure box 8 communicates with the outlet end of the circulation pipe 11 through the circulation fan 4; the top of the return air chamber 12 communicates with the air return port 10 communicates, and the lower part of the air return chamber 12 communicates with the inlet end of the circulation pipe 11; Preferably, the height of the air outlet 15 is located in the middle between the two return air outlets 10, and the exhaust pipe 9 is installed at the air outlet 15, so that the return air through the upper and lower return air outlets 10 is fully mixed and then discharged. Further improve the wind field.

The specific process of drying the coated substrate in this embodiment is described in detail below: hot air is blown out by a plurality of air nozzles 7 of the upper wind chamber 5 and the lower wind chamber 6 to dry the substrate, and is collected by the return air cover 13 and passed through the return air chamber. The tuyere 10 enters the return air chamber 12, and part of the air entering the return air chamber 12 is discharged from the exhaust pipe 9, and the other part is mixed with the fresh air entering the return air chamber 12 from the fresh air outlet 2 and then enters the circulation pipe 11, and is heated by the heating system 3. Hot air, driven by the circulating fan 4, enters the static pressure box 8, and then enters the upper wind chamber 5 and the lower wind chamber 6 from the air inlet 51 of the upper wind chamber and the air inlet 61 of the lower wind chamber, and repeats the above. The upper and lower layers form a circulating wind. From the perspective of the entire circulating wind field, firstly, the uniformity of the wind field speed, wind field temperature, and wind field pressure has been greatly improved; Dead angle drying reduces the phenomenon of uneven drying of the substrate; thirdly, the exhaust outlet is located in the middle of the two return air outlets so that the return air can be fully mixed and then discharged, further improving the wind field; finally, there is no return air dead angle, At the same time, the speed of the wind field of the whole box is improved to make the wind speed more uniform and avoid the phenomenon of vortex. The new air outlet set in the lower part of the return air chamber can compensate the air volume drawn by the exhaust outlet to form mixed air for reuse. The oven unit of the coating machine of the utility model reduces heat energy loss, has few processing parts, is convenient for installation and debugging, and greatly improves production efficiency.

Embodiment two

See FIG. 12 , the difference between this embodiment and the first embodiment is that the oven unit can also have a symmetrical structure as shown in FIG. 4 of the first embodiment. That is to say, the circulating fan 4, the static pressure box 8 and the return air chamber 12 can also be arranged on the other side of the overall frame.

The above are only preferred feasible embodiments of the present utility model, and do not limit the protection scope of the present utility model. All equivalent structural changes made by using the description of the utility model and the contents of the accompanying drawings are included in the protection scope of the present utility model. .

Claims (7)

1. a baking oven unit for coating machine, is characterized in that, comprises and has bilevel general frame;

The upper strata of described general frame is provided with the ipper air chamber and lower air chamber that extend along baking oven element length direction; Be substrate delivery road between described ipper air chamber and lower air chamber, described ipper air chamber and lower air chamber can blow oven dry to the upper surface of base material and lower surface respectively; The side of described ipper air chamber and lower air chamber is respectively equipped with air inlet, and described air inlet is all near the one end in described baking oven element length direction; The upper strata of described general frame be provided with in the side of the other end in described baking oven element length direction between the upper and lower every two return air inlets;

Be provided with circulating line in the lower floor of described general frame, in described circulating line, be provided with heating system;

The side of described general frame is provided with circulating fan, plenum chamber and return air chamber; The top of described plenum chamber is communicated with described air inlet, and the bottom of described plenum chamber is communicated with the port of export of described circulating line by described circulating fan; The top of described return air chamber is communicated with described return air inlet, and the bottom of described return air chamber is communicated with the entrance point of described circulating line; The top of described return air chamber is also provided with exhaust outlet, and bottom is also provided with fresh wind port.

2. baking oven unit according to claim 1, is characterized in that, in described general frame, corresponding described two return air inlets are provided with return air cover, and described return air is covered with multiple air vent, in order to collect the air of described ipper air chamber and lower air chamber's discharge.

3. baking oven unit according to claim 1, is characterized in that, the height and position of described exhaust outlet is in the centre position described in two between return air inlet.

4. baking oven unit according to claim 1, is characterized in that, described circulating fan and described plenum chamber are located at the same side of described baking oven unit.

5. baking oven unit according to claim 4, is characterized in that, described return air chamber and described circulating fan and plenum chamber are located at the same side of described baking oven unit.

6. baking oven unit according to claim 1, it is characterized in that, described ipper air chamber and lower air chamber are provided with multiple tuyere towards described substrate delivery road, and described ipper air chamber and lower air chamber blow oven dry by described multiple tuyere to the upper surface of described base material and lower surface.

7. a coating machine, is characterized in that, comprises the baking oven unit as described in any one of claim 1-6.