Corona and winding all-in-one machine

Abstract

The utility model discloses a corona and winding all-in-one machine which comprises an outer corona device, a traction device, inner corona devices and an inner winding device, two layers of overlapped films penetrate through the outer corona device and the traction device and then are layered, and single-layer films respectively penetrate through one inner corona device and then enter one winding device. The outer corona device is located at the front end of the traction device, the traction device is located on the upper portion of the winding device, and the inner corona device is installed on the winding device to form the corona winding device. Concentrated corona can be carried out on the two faces of the outer layer, procedures are reduced, the outer layer is split into two layers after corona is completed, the inner layer of the split thin film is subjected to corona and winding through the corona winding device, and the equipment structure and the technology which are reduced in occupied area, compact in procedures and continuous in winding are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field, and particularly relates to a corona and winding integrated machine. Background Art

[0002] For the plastic printing film with non-polar molecular structure, it has high chemical stability, smooth surface, poor affinity with ink / adhesive during printing / lamination, and the ink is extremely easy to fall off and there is no lamination strength. Therefore, its surface must be corona-treated before printing. The principle of corona treatment is that under the action of a high-voltage electric field, oxygen molecules in the air are ionized to generate ozone (O3), and ozone is a strong oxidant, which can oxidize the non-polar molecules on the film surface and turn them into polar molecules. At the same time, when the film is corona-treated, its surface is roughened by the strong impact of discharge and ion gas, forming many microscopic pores that are invisible to the naked eye. In this way, it is equivalent to increasing the contact area of the film surface, further improving its surface tension, and thus increasing the adhesion of the ink on the film.

[0003] In the existing production process of the film, first, the plastic is extruded into a tube by the extrusion method, and then the tube is continuously expanded to a certain size by blowing air into the tube to form a tubular film. Then, the tubular film is cut in half by a cutter to form two films, and finally, corona treatment and winding are carried out. However, this method requires cutting first for corona treatment, and multiple devices are also needed for the corona treatment of the film. Especially for double-sided corona treatment of the film, after the tubular film is cut in half, if both the inner and outer layers of the two films need to be corona-treated, theoretically at least 3 corona devices are required to achieve this function, resulting in a large demand for equipment quantity, large floor area, and extremely high cost. Summary of the Utility Model

[0004] To overcome the above deficiencies, the inventor of the present utility model has made long-term exploration and attempts, as well as multiple experiments and efforts, continuously reforming and innovating, and proposed a corona and winding integrated machine. The structure layout of this corona and winding integrated machine is reasonable, the floor area of the equipment is small, and it can realize double-sided corona treatment of the film simultaneously. First, the outer layer of the uncut tubular film is directly corona-treated, and centralized corona treatment can be carried out on both sides of the outer layer, reducing the process. After the outer layer corona treatment is completed, it is cut into two layers, and then the inner layer of the split film is corona-treated and wound by the corona winding device, realizing an equipment structure and process simplification with reduced floor area, compact process, and continuous winding.

[0005] The technical solution adopted by the present utility model to achieve the above object is: to provide a corona and winding integrated machine. It includes an external corona device, a traction device, an internal corona device, and an internal winding device. Two layers of superimposed films pass through the external corona device and the traction device and then are separated into layers. The single-layer films respectively pass through an internal corona device and then enter a winding device respectively. The external corona device is located at the front end of the traction device, the traction device is located above the winding device, and the internal corona device is installed on the winding device to form a corona winding device.

[0006] According to a corona and winding integrated machine of the present utility model, a further preferred technical solution is: the corona winding device includes a first corona winding device and a second corona winding device, and the first corona winding device and the second corona winding device have the same structure and are symmetrically arranged.

[0007] According to a corona and winding integrated machine of the present utility model, a further preferred technical solution is: the first corona winding device includes an internal corona device, a frame, a first cooling roller, a second cooling roller, a third cooling roller, a main guide roller, a sub-guide roller, and a winding guide roller. The internal corona device is installed on the upper part of the frame. After the film comes out of the internal corona device, it passes through the main guide roller, the first cooling roller, the second cooling roller, the sub-guide roller, the third cooling roller, and the winding guide roller in sequence. The above-mentioned guide rollers are all installed on the frame and are installed in parallel. The second corona winding device has the same structure as the first corona winding device.

[0008] According to a corona and winding integrated machine of the present utility model, a further preferred technical solution is: the tensioning and transmission of the film entering and exiting the internal corona device are respectively realized by using a feeding guide roller and a discharging guide roller, and the feeding guide roller and the discharging guide roller are respectively installed at the inlet and outlet positions of the internal corona device.

[0009] According to a corona and winding integrated machine of the present utility model, a further preferred technical solution is: a cutting device for cutting the film into two stacked layers of film is arranged between the external corona device and the traction device.

[0010] According to a corona and winding integrated machine of the present utility model, a further preferred technical solution is: the traction device uses two juxtaposed traction rollers for traction, and after the traction rollers, the two layers of film are separated in a herringbone shape and respectively enter an internal corona device.

[0011] According to a corona and winding integrated machine of the present utility model, a further preferred technical solution is: the internal corona device includes an insulating roller and a high-voltage discharge tooth arranged in parallel, the discharging end of the high-voltage discharge tooth faces the insulating roller, and the film is wound around the insulating roller and is located between the insulating roller and the high-voltage discharge tooth.

[0012] For a corona and winding integrated machine according to the present utility model, a further preferred technical solution is that tension rollers are arranged on both the upper and lower sides of the insulating roller.

[0013] For a corona and winding integrated machine according to the present utility model, a further preferred technical solution is that a cooling tension roller is arranged between the traction roller of the traction device and the inner corona device for tensioning the separated single-layer film.

[0014] Compared with the prior art, the technical solution of the present utility model has the following advantages / beneficial effects:

[0015] 1. The corona and winding integrated machine has a reasonable structural layout, occupies a small floor area, and can perform corona on both sides of the film simultaneously. First, corona is directly performed on the outer layer of the unslit tubular film, and centralized corona can be carried out on both sides of the outer layer, reducing the process. After the outer layer corona is completed, it is slit into two layers, and then the inner layer of the separated film is coronaed and wound by the corona winding device, realizing a device structure and process simplification with reduced floor area, compact process, and continuous winding.

[0016] 2. The corona winding device integrates the corona and winding of the inner layer, supplemented by multiple cooling rollers to cool the coronaed film, greatly reducing the winding distance, making the equipment layout more compact, with good corona and cooling effects, and the winding will not adhere due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 It is a schematic structural diagram of a corona and winding integrated machine of the present utility model.

[0019] Figure 2 It is Figure 1 A partial enlarged view of part A in

[0020] Figure 3 It is Figure 1 A partial enlarged view of part B in

[0021] The marks in the figure are respectively: 1. Outer corona device; 2. Traction device; 3. Inner corona device; 31. First corona winding device; 311. Winding guide roller; 312. Frame; 313. First cooling roller; 314. Second cooling roller; 315. Third cooling roller; 316. Main guide roller; 317. Sub-guide roller; 32. Second corona winding device; 33. Feeding guide roller; 34. Discharging guide roller; 35. Insulating roller; 36. High-voltage discharge tooth; 4. Inner winding device; 5. Film; 6. Cutting device; 7. Traction roller; 8. Cooling tension roller. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Apparently, the described embodiments are only a part rather than all of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided below is not intended to limit the scope of the claimed present utility model, but merely represents selected embodiments of the present utility model.

[0023] It should be noted that like reference numerals and letters denote like items in the following figures. Therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0024] Embodiment:

[0025] As Figures 1-3 shown, a corona and winding integrated machine includes an outer corona device 1, a traction device 2, an inner corona device 3, and an inner winding device 4. Two layers of superimposed films 5 pass through the outer corona device 1 and the traction device 2 and then are separated into layers. The single-layer films 5 respectively pass through an inner corona device 3 and then enter a winding device respectively. The outer corona device 1 is located at the front end of the traction device 2. The traction device 2 is located above the winding device. The inner corona device 3 is installed on the winding device to form a corona winding device. The corona winding device has both the functions of corona and winding, and plays a role in cooling the corona-treated film 5. The cooling is mainly achieved by using cooling rollers.

[0026] The corona winding device comprises a first corona winding device 31 and a second corona winding device 32. The first corona winding device 31 and the second corona winding device 32 have the same structure and are symmetrically arranged. The first corona winding device 31 comprises an inner corona device 3, a frame 312, a first cooling roller 313, a second cooling roller 314, a third cooling roller 315, a main guide roller 316, an auxiliary guide roller 317, and a winding guide roller 311. The inner corona device 3 is installed on the upper part of the frame 312. After coming out of the internal corona device 3, the film passes through the main guide roller 316, the first cooling roller 313, the second cooling roller 314, the auxiliary guide roller 317, the third cooling roller 315, and the winding guide roller 311 in sequence. The film 5 is staggered between adjacent guide rollers to achieve tension and smooth movement. The above-mentioned guide rollers are all installed on the frame 312 and installed in parallel, and are used to transport and cool the film. The second corona winding device 32 has the same structure as the first corona winding device 31, and is adjacent and symmetrical in layout.

[0027] The film 5 enters and exits the internal corona device 3 to be tensioned and transported respectively by a feed guide roller 33 and a discharge guide roller 34, which are respectively installed at the inlet and outlet positions of the internal corona device 3. The feed guide roller 33 and the discharge guide roller 34 mainly play the role of continued transmission, and other structures can be used to achieve this when necessary.

[0028] A cutter device 6 for cutting the film into two stacked layers of film is arranged between the external corona device 1 and the traction device 2. The cutter mainly serves to cut the cylindrical film 5 into two separate layers of film 5. The separated films 5 enter a corona winding device for internal corona treatment and then are wound up.

[0029] The traction device 2 uses two traction rollers 7 arranged in parallel for traction. After the traction rollers 7, the two layers of film are separated in a herringbone shape and enter an internal corona device 3 respectively. The two traction rollers 7 of the traction device 2 are arranged closely, and the film passes between the two traction rollers 7, and then enters a corona winding device in layers respectively, so the film is arranged in a herringbone shape.

[0030] The inner corona device 3 includes an insulating roller 35 and a high-voltage discharge tooth 36 arranged in parallel. The discharging end of the high-voltage discharge tooth 36 faces the insulating roller 35. The film is wound around the insulating roller 35 and located between the insulating roller 35 and the high-voltage discharge tooth 36, and is used to corona the inner layer of the film. The inner layer of the film is on one side of the high-voltage discharge tooth 36. Tension rollers are arranged on both the upper and lower sides of the insulating roller 35 and are used to tension the film coronaed by the inner corona device. A cooling tension roller 8 is respectively arranged between the traction roller 7 of the traction device 2 and the inner corona device 3 for tensioning the separated single-layer film, and is also used to cool the coronaed film, realizing the temperature reduction of the coronaed film, greatly reducing the winding distance, making the equipment layout more compact, with good corona effect and cooling effect, and the winding will not cause adhesion due to high temperature.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0032] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected with", "fixed" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above" and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below" and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only means that the horizontal height of the first feature is lower than that of the second feature.

[0034] The above are only the preferred embodiments of the present utility model. It should be noted that the above preferred embodiments should not be construed as limiting the present utility model, and the protection scope of the present utility model should be subject to the scope defined by the claims. For those of ordinary skill in the art of this technology, without departing from the spirit and scope of the present utility model, several improvements and modifications can be made, and these improvements and modifications should also be regarded as within the protection scope of the present utility model.

Claims

1. A corona and winding integrated machine, characterized in that, It includes an external corona device, a traction device, an internal corona device, and an internal winding device. Two layers of superimposed films pass through the external corona device and the traction device and then are separated into layers. The single-layer films respectively pass through an internal corona device and then enter a winding device respectively. The external corona device is located at the front end of the traction device, the traction device is located above the winding device, and the internal corona device is installed on the winding device to form a corona winding device.

2. The corona and winding integrated machine according to claim 1, wherein The corona winding device includes a first corona winding device and a second corona winding device. The first corona winding device and the second corona winding device have the same structure and are symmetrically arranged.

3. The corona and winding integrated machine according to claim 2, characterized in that, The first corona winding device includes an internal corona device, a frame, a first cooling roll, a second cooling roll, a third cooling roll, a main guide roll, a sub-guide roll, and a winding guide roll. The internal corona device is installed on the upper part of the frame. After the film comes out of the internal corona device, it successively passes through the main guide roll, the first cooling roll, the second cooling roll, the sub-guide roll, the third cooling roll, and the winding guide roll. The above-mentioned guide rolls are all installed on the frame and are installed in parallel. The second corona winding device has the same structure as the first corona winding device.

4. A corona and winding integrated machine according to claim 1, characterized in that The tensioning and transmission of the film entering and exiting the internal corona device are respectively realized by using a feed guide roll and a discharge guide roll. The feed guide roll and the discharge guide roll are respectively installed at the inlet and outlet positions of the internal corona device.

5. The corona and winding integrated machine according to claim 1, characterized in that, A cutting device for cutting the film into two stacked layers of film is arranged between the external corona device and the traction device.

6. The corona and rewinding integrated machine according to claim 1, characterized in that, The traction device uses two juxtaposed traction rolls for traction. After the traction rolls, the two layers of film are separated in a V-shape and respectively enter an internal corona device.

7. The corona and winding integrated machine according to claim 1, characterized in that, The internal corona device includes an insulating roll and a high-voltage discharge tooth arranged in parallel. The discharge end of the high-voltage discharge tooth faces the insulating roll. The film is wound around the insulating roll and is located between the insulating roll and the high-voltage discharge tooth.

8. The corona and winding integrated machine according to claim 7, characterized in that, Tensioning rolls are arranged on both the upper and lower sides of the insulating roll.

9. The corona and winding integrated machine according to claim 8, wherein A cooling tensioning roll is respectively arranged between the traction roll of the traction device and the internal corona device for tensioning the separated single-layer film.

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