CN201449122U - Drying device for electrolytic copper foil surface treatment machine - Google Patents

Abstract

The utility model relates to a drying device for an electrolytic copper foil surface treatment machine. It includes a drying box, in which far-infrared electric heating tubes are installed, and a draft structure is arranged at the copper foil entrance of the drying box. The draft structure mainly includes an upper wind bucket and a lower wind bucket. The copper foil outlet of the drying box is provided with a cold air knife structure, and the cold air knife structure mainly includes an upper air knife tube and a lower air knife tube. The utility model can effectively collect the moisture in the drying box and discharge it out of the production environment through the drafting structure at the copper foil inlet of the drying box, and can air-supply through the air knife at the copper foil outlet of the drying box, which can clean the air after drying. The surface of the copper foil is cooled, and the heat inside the drying box is effectively blocked from overflowing and spreading. It not only improves the drying efficiency of the drying box, but also eliminates the influence of humidity and temperature on the production environment during the copper foil drying process, and greatly shortens the length of the drying box to only 1.8 meters.

Description

Drying device for electrolytic copper foil surface treatment machine

technical field

The utility model relates to an electrolytic copper foil surface treatment machine, in particular, it is a drying device for the electrolytic copper foil surface treatment machine.

Background technique

In the production of circuit copper clad laminates, copper foil production is a foundation. Copper foil production is a complicated process, which includes copper melting, electrolysis and surface post-treatment process after electrolysis. Among them, the surface post-treatment is to roughen and solidify the surface of the copper foil, and at the same time carry out some treatments to enhance the anti-oxidation of the copper foil and improve other physical and chemical properties. After the treatment, it must be cleaned with water, dried, and finally rolled. The surface treatment machine is done continuously. The surface treatment machine includes an uncoiler, a treatment tank, a dryer, a winder and a conveying roller, etc. The electrolyzed copper foil is uncoiled by the uncoiler and conveyed by the conveying roller, and passes through multiple surface treatment tanks in turn, and the treatment liquid in the tank contact, and then dried by a dryer, and finally rolled into a finished product by a winder. The thoroughness of drying is directly related to the quality of copper foil. Existing copper foil surface treatment machines often use the far-infrared drying method, and the dryer is mainly composed of a drying box and a plurality of far-infrared electric heating tubes arranged in the drying box. When the copper foil passes through the drying oven after the surface is cleaned, the surface of the copper foil reaches the drying temperature, and the water is evaporated and dried. The main disadvantage of this dryer is that the drying efficiency is not high enough, which makes the copper foil travel a long distance in the drying box and increases the volume of the drying box.

Utility model content

The purpose of this utility model is to overcome the shortcomings in the prior art, to provide a drying device for electrolytic copper foil surface treatment machine, to improve the drying efficiency, secondly, to increase the stretching function of the copper foil surface after drying, to adapt to the drying The linear expansion of copper foil in different directions.

In order to achieve the above object, the technical scheme of the utility model is as follows:

It has a frame, on which a drying box is installed, and an infrared electric heating tube is installed in the drying box, and the entrance and exit of the copper foil are arranged on the wall of the drying box, and its The improvement point is: a draft structure is provided at the copper foil inlet of the drying box, and the draft structure is composed of an upper wind funnel and a lower wind funnel, and the air inlets of the upper wind funnel and the lower wind funnel are respectively connected to the upper surface of the copper foil and the lower wind funnel. The lower surface is opposite, and its air outlets are respectively connected to a main pipe through a sub-pipe, and the main pipe is connected to an exhaust fan; a cold air knife structure is provided at the copper foil outlet of the drying box. The cold air knife structure is composed of an upper air knife tube and a lower air knife tube. The air outlets of the upper air knife tube and the lower air knife tube are respectively opposite to the upper surface and the lower surface of the copper foil. The air outlets of the air distribution tank are connected, and the air inlet of the air distribution tank is connected with a cold air source.

The further improved technical scheme of the utility model is as follows:

The air inlets of the upper and lower air suction buckets are in the shape of a rectangular cylinder, and one long side wall of the rectangular cylinder is bent toward the air inlet, and a slide plate and the Skateboard mounting adjustment holes.

Each air distribution pipe of the air distribution tank is provided with an air volume regulating valve.

A copper foil stretching structure is arranged behind the air knife structure, and the stretching structure is composed of a banana-shaped rubber roller and a front and back arrangement of a passing roller.

The features of the utility model compared with the prior art are as follows:

1. The utility model is equipped with a ventilation structure at the copper foil inlet of the drying box. The ventilation structure can effectively collect the moisture in the drying box and discharge it out of the production environment, which improves the drying efficiency. At the copper foil outlet of the drying box A cold air knife structure is set up, which can cool down the surface of the dried copper foil, and can effectively block the heat spillage inside the drying box. The above air knife air supply and air extraction structure form a reverse circulation air flow exchange field opposite to the direction of the copper foil inside the drying box, which not only improves the drying efficiency of the drying box, but also eliminates the impact on the copper foil during the drying process. The influence of humidity and temperature in the production environment. Due to the improvement of drying efficiency, the length of the drying box of the utility model is greatly shortened, only 1.8 meters.

2. Both the suction bucket structure and the cold air knife structure of the utility model are equipped with air volume adjustment, which can not only control the size of the suction and supply air flow, but also indirectly control the size of the reverse air flow in the drying box, so as to better control the drying box drying efficiency.

3. In order to meet the linear expansion changes of the dry copper foil in different directions, the utility model also installs a copper foil stretching structure at the outlet of the drying box. The banana-shaped rubber roller in the structure has a slight radius of curvature in the radial direction, which can be The surface can be effectively stretched, and at the same time, the rotation angle of the rubber roller can be adjusted according to the tightness of the copper foil surface, so as to change the force acting on the copper foil surface and prevent the occurrence of wrinkling and wrinkling on the copper foil surface .

Description of drawings

Fig. 1, the sectional view of the overall structure of the utility model.

Figure 2, the left view of the ventilation structure in Figure 1.

Figure 3, the top view of Figure 1.

Detailed ways

Referring to Fig. 1, it has a frame 1, and a drying box 2 is housed on the frame, and described drying box is made of steel frame and the double-layer stainless steel plate that is fixed on the steel frame and is provided with the insulation material in the double-layer stainless steel plate Composition, upper and lower rows of far-infrared electric heating tubes 3 are installed in the drying box; in order to control the temperature of the drying box, a temperature sensor 4 is also installed on the drying box, and a copper tube is installed on the wall of the drying box 2 The entrance 2-1 and exit 2-2 of the foil horizontal transmission, the copper foil 9 enters the drying oven from the entrance 2-1, and passes between the upper and lower rows of far-infrared electric heating tubes 3, so that the upper and lower sides of the copper foil Surface is dried, and then walks out from outlet 2-2.

Referring to Figures 1 and 2, a draft structure is provided at the copper foil inlet 2-1 of the drying box, and the draft structure is composed of an upper wind bucket 5-1 and a lower wind bucket 5-2, the upper wind bucket and the lower wind bucket. The air inlets are respectively facing the upper surface and the lower surface of the copper foil 9, and the air outlets are respectively connected to the main pipe 5-5 through the sub-pipes 5-3, 5-4, and the main pipe is connected to an exhaust fan . When the exhaust fan is turned on, the upper wind bucket and the lower wind bucket suck all the moisture from the surface of the copper foil and the entrance 2-1 of the drying box and discharge it out of the production environment. In order to adjust the air volume of the draft, the air inlets of the air suction buckets 5-1, 5-2 are in the shape of a rectangular cylinder. Taking the air inlet 5-1 as an example, a long side wall 5-11 of the rectangular cylinder is directed toward the air inlet. The tuyere is bent inside, and a sliding plate 5-12 that can adjust the size of the air outlet and the installation adjustment hole of the sliding plate are installed at the lower end of the bending wall. Through the installation adjustment, the sliding plate can be moved up or down and fixed, and moved down and fixed When , the air inlet decreases, otherwise, it increases.

Referring to Figures 1 and 3, a cold air knife structure is provided at the copper foil outlet of the drying box 2, and the cold air knife structure is composed of an upper air knife tube 6 and a lower air knife tube 7, and the upper and lower air knife tubes of this example are both Set two, the air outlet holes of the upper and lower air knife tubes are respectively facing the upper surface and the lower surface of the copper foil 9, the air distribution tank 8 is a quarter air tank, and the four air outlets 8-1 pass through the distribution pipes respectively. It is connected with the upper air knife tube and the lower air knife tube (shown in the figure is the unconnected state between the upper air knife tube, the lower air knife tube and the air distribution tank), and the air inlet of the four-point air tank is connected to a cold air source Connected. When the cold air source is blowing air, it is divided into four parts by the air distribution tank 8 and sent to the air inlet of the upper air knife tube 6 and the lower air knife tube 7 (that is, one end of the air knife tube is sent, and the other end is closed), and then Discharge from their air outlets to form an upper air knife and a lower air knife, thereby cooling the upper surface and the lower surface of the dried copper foil 9. In order to make the air volume of the air knife adjustable, each branch in the air distribution tank There is an air volume regulating valve 10 in the air duct.

After drying, the surface of the copper foil may not be flat enough, so the drying device is provided with a copper foil stretching structure behind the cold air knife structure, and the stretching structure consists of a banana-shaped rubber roller 11 and a passing roller 12. Arrangement composition. The banana-shaped rubber roller has a slight radius of curvature in its radial direction, and the tightness of the copper foil surface in each direction can be adjusted by adjusting its rotation angle. When the copper foil 9 passes through the rubber roller, its surface is stretched.

Claims (4)

1. A drying device for an electrolytic copper foil surface treatment machine, which has a frame (1), on which a drying box (2) is housed, and a far-infrared electric generator is housed in the drying box Heat pipe (3), is provided with the inlet and outlet of copper foil horizontal walk on the box wall of this dry box, is characterized in that: (A), at the copper foil entrance of described drying oven (2), be provided with a draft structure, this draft structure is made up of upper wind bucket (5-1) and lower wind bucket (5-2), described upper wind bucket and The air inlets of the lower wind bucket are respectively opposite to the upper surface and the lower surface of the copper foil, and the air outlets are respectively connected to a main pipe (5-5) through a branch pipe (5-3, 5-4). The main pipeline (5-5) is connected with an exhaust fan; (B), a cold air knife structure is provided at the copper foil outlet of the drying box (2), and the cold air knife structure is composed of an upper wind knife tube (6) and a lower wind knife tube (7), and the upper wind knife tube The air outlet holes of the air knife tube and the lower air knife tube are respectively opposite to the upper surface and the lower surface of the copper foil (9), and their air inlet ports are respectively connected to the air outlet of the air distribution tank (8) through a branch pipe, and the air distribution tank The air intake is connected to a cold air source. 2. The drying device for electrolytic copper foil surface treatment machine according to claim 1, characterized in that: the air inlets of the upper and lower air hoppers (5-1, 5-2) are in the shape of a rectangular tube, A long side wall (5-11) of this rectangular tube is bent inwardly to the air inlet, and a slide plate (5-12) which can adjust the size of the air suction port and the installation adjustment hole of the slide plate are housed on the bent wall. 3. The drying box device for electrolytic copper foil surface treatment machine according to claim 1 or 2, characterized in that: each air distribution pipe (8-1) of the air distribution tank (8) is provided with Air volume regulating valve (10). 4. The drying device for electrolytic copper foil surface treatment machine according to claim 1 or 2, characterized in that: a copper foil stretching structure is arranged behind the air knife structure, and the stretching structure consists of a banana-shaped Rubber roller (11) and a roller (12) are arranged front and back to form.

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