Corona device for continuous production of foaming materials

Abstract

The utility model discloses a corona device for continuous production of foam materials, which belongs to the technical field of foam material production equipment and comprises a sheet feeding roller and a corona component which are arranged along a sheet penetrating direction. The corona assembly comprises at least one group of corona passing rollers and electrode plates which are oppositely arranged, and the electrode plates are electrically connected with the electric cabinet; a salient point wheel and an automatic stop sensor matched with the salient point wheel are arranged at the end part of the sheet feeding passing roller; and the automatic stop sensor is electrically connected with the electric control box. According to the utility model, the electrode plate can be timely controlled to stop corona work when the foaming material stops moving, so that long-time corona of the foaming material at the same position is effectively avoided, and the risk of material damage and combustion is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of foam material production equipment, and in particular relates to a corona device used for continuous production of foam materials. Background Art

[0002] When the foam material is used at the application end, it will be processed by ink printing, gluing, coating and other processing. If the surface adhesion of the foam material does not meet the requirements, it will cause problems such as discoloration of the material printing, loose bonding, uneven gluing, and unclear color. The solution is to improve the surface adhesion of the material. The commonly used method in the prior art is to use corona to treat the surface of the foam material to reduce the surface tension of the material and improve the surface adhesion of the material.

[0003] Existing corona devices such as Figure 1 As shown, the corona device is composed of a frame 100, an electrode plate 500, a corona roller 400, an electric control box 600, a frame shell and an opening and closing cylinder. The frame shell is divided into two layers, including an upper frame shell 200 and a lower frame shell 300. Each layer of the frame shell is equipped with a corona roller 400 and an electrode plate 500. The upper frame shell 200 is equipped with an opening and closing cylinder on both sides. The piston end of the opening and closing cylinder is fixed at both ends of the lower frame shell 300. The opening and closing cylinder is used to control the gap between the electrode plate and the corona roller, and the electric control box is used to control the discharge voltage of the electrode plate. However, the existing corona device has the following problems:

[0004] 1) When the material stops moving due to continuous roll change or abnormal production adjustment, the corona discharger will continue to discharge corona at the same position of the material, causing the material structure to be damaged. In worse cases, the material may spontaneously ignite and catch fire, affecting production safety.

[0005] 2) The foaming material passes through the gap between the electrode plate and the corona roller of the corona device. When producing materials of different thicknesses, the distance between the electrode plate and the corona roller is difficult to adjust, resulting in uncontrollable gap between the foaming material and the electrode plate, and poor surface treatment effect;

[0006] 3) When the corona device is working, it will produce high concentration of ozone, which will not only oxidize and corrode other equipment parts, but also cause a bad working environment;

[0007] 4) Corona discharge is carried out in the air. The air humidity will affect the degree of treatment. When the air humidity is high, the corona treatment effect is poor and the foaming material will be broken down. Utility Model Content

[0008] In response to one or more of the above defects or improvement needs in the prior art, the utility model provides a corona device for continuous production of foaming materials, which can effectively avoid corona of the foaming material at the same position for a long time and reduce the risk of material damage and burning.

[0009] To achieve the above object, the utility model provides a corona device for continuous production of foaming materials, comprising a sheet feeding roller and a corona assembly arranged along a sheet feeding direction;

[0010] The corona assembly comprises at least one set of corona rollers and electrode plates arranged opposite to each other, and the electrode plates are electrically connected to the electric control box;

[0011] The end of the film feeding roller is provided with a convex wheel and a self-stop sensor matched therewith; the self-stop sensor is electrically connected to the electric control box.

[0012] As a further improvement of the present invention, the surface of the film feeding roller is rough.

[0013] As a further improvement of the utility model, the corona assembly is arranged between the upper frame shell and the lower frame shell.

[0014] As a further improvement of the utility model, both ends of the upper frame shell and the lower frame shell are provided with opening and closing cylinders; and / or,

[0015] Limit bolts are arranged at both ends of the upper frame shell and the lower frame shell.

[0016] As a further improvement of the utility model, the upper frame shell and the lower frame shell are arranged on the frame.

[0017] As a further improvement of the utility model, a group of the corona components is provided between the upper frame shell and the lower frame shell;

[0018] Among the corona roller and the electrode plate of the corona assembly, one is arranged on the upper frame shell, and the other is arranged on the lower frame shell.

[0019] As a further improvement of the utility model, two groups of the corona components are provided between the upper frame shell and the lower frame shell;

[0020] The corona rollers and electrode plates of one group of the corona assemblies are respectively arranged on the upper frame shell and the lower frame shell, and the corona rollers and electrode plates of the other group of the corona assemblies are respectively arranged on the lower frame shell and the upper frame shell.

[0021] As a further improvement of the utility model, the upper frame shell and the lower frame shell are respectively provided with an upper air suction port and a lower air suction port, and the upper air suction port and the lower air suction port are respectively connected to the exhaust motor.

[0022] As a further improvement of the utility model, a heating rod is further provided between the upper frame shell and the lower frame shell.

[0023] As a further improvement of the utility model,

[0024] The heating rod is arranged inside the lower frame shell; and / or,

[0025] A humidity detector is integrated on the heating rod.

[0026] In general, the above technical solution conceived by the utility model has the following beneficial effects compared with the prior art:

[0027] (1) The corona device for continuous production of foamed materials of the utility model is connected to an electric control box by arranging an automatic stop sensing device on the feed roller. When the foamed material stops moving, the electrode plate can be controlled to stop the corona operation in time, thereby effectively avoiding the foamed material from being coronaed at the same position for a long time and reducing the risk of material damage and combustion.

[0028] (2) The corona device for continuous production of foamed materials of the utility model can quickly adjust the gap between the electrode plate and the material through the limit bolts when producing materials of different thicknesses, thereby reducing the debugging time and ensuring the corona effect of the material.

[0029] (3) The corona device used for the continuous production of foaming materials of the utility model can timely extract excess ozone through the air suction port, reduce ozone concentration and overflow, protect equipment parts, and improve the production environment.

[0030] (4) The corona device for continuous production of foaming materials of the utility model can control the air humidity in the corona area by setting an electric heating rod, thereby ensuring a good corona effect and improving the corona yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a corona device in the prior art;

[0032] Figure 2 This is a schematic diagram of the structure of the corona device used for continuous production of foaming materials of the utility model;

[0033] Figure 3 This is a schematic cross-sectional view of the corona device used for continuous production of foaming materials of the utility model;

[0034] Figure 4 The utility model is a schematic diagram of the sheet penetration structure of the corona device used for the continuous production of foaming materials.

[0035] In all the drawings, the same reference numerals represent the same technical features, specifically: 100-frame, 200-upper frame housing, 300-lower frame housing, 400-corona roller, 500-electrode plate, 600-electric control box;

[0036] 1-feed roller, 2-upper frame shell, 3-lower frame shell, 4-opening and closing cylinder, 5-limiting bolt, 6-upper air suction port, 7-lower air suction port, 8-convex wheel, 9-automatic stop sensor, 10-electric control box, 11-corona roller, 12-electrode plate, 13-heating rod. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as they do not conflict with each other.

[0038] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] See also Figures 2 to 4 The utility model of the corona device for continuous production of foaming materials comprises a sheet feeding roller 1 and a corona assembly arranged along the sheet feeding direction, the corona assembly comprises at least one set of corona rollers 11 and electrode plates 12 arranged opposite to each other, the electrode plates 12 and the electric control box 10 are electrically connected; the end of the sheet feeding roller 1 is provided with a convex wheel 8 and a self-stop sensor 9 matched therewith; the self-stop sensor 9 and the electric control box 10 are electrically connected. The foaming material passes through the sheet feeding roller 1 and the corona rollers 11 and the electrode plates 12 of the corona assembly in sequence for corona.

[0043] The surface of the sheet-feeding roller 1 is preferably roughened to increase the friction between the sheet and the sheet, thereby driving the sheet-feeding roller 1 to rotate when the sheet passes through the sheet-feeding roller 1 .

[0044] During normal production, the rotation of the film feed roller 1 can drive the convex wheel 8 to rotate, and the foaming material contacts the film feed roller 1 and the corona roller 11. The rough surface of the film feed roller 1 rotates continuously under the traction of the foaming material, so that the convex points on the convex wheel 8 contact the self-stop sensor 9 during the rotation process, and the signal is connected, otherwise the signal is disconnected. Therefore, the convex wheel 8 and the self-stop sensor 9 cooperate to enable it to output a continuous alternating intermittent signal. When the signal sensed by the self-stop sensor 9 does not alternately interrupt, it means that the film feed roller does not rotate, that is, the foaming material does not move under traction. At this time, the electric control box 11 controls the electrode plate 12 to cut off the power, and the corona action stops.

[0045] The utility model provides an automatic stop sensing device on the feed roller and connects it to the electric control box, so that the electrode plate can be controlled to stop corona work in time when the foaming material stops moving, thereby effectively avoiding the foaming material from coronaing at the same position for a long time and reducing the risk of material damage and burning.

[0046] Preferably, the corona assembly is arranged between the upper frame housing 2 and the lower frame housing 3. Further preferably, an opening and closing cylinder 4 is provided at both ends of the upper frame housing 2 and the lower frame housing 3, and the opening and closing of the upper frame housing 2 and the lower frame housing 3 are realized by the extension and contraction of the opening and closing cylinder, which can play the role of quickly opening and closing the upper and lower frame housings of the corona device.

[0047] In the preferred embodiment shown in the accompanying drawings, the piston end of the opening and closing cylinder 4 is connected to the end of the lower frame housing end 3, and the fixed end is connected to the end of the upper frame housing 2, and the extension and contraction of the cylinder can realize the relative movement of the upper frame housing 2 and the lower frame housing 3. Of course, the arrangement of the piston end of the opening and closing cylinder 4 connected to the upper frame housing 2 and the fixed end to the lower frame housing end 3 is also within the scope of protection of the present utility model, as long as the relative movement of the upper frame housing 2 and the lower frame housing end 3 can be realized.

[0048] Preferably, both ends of the upper frame shell 2 and the lower frame shell 3 are further provided with limit bolts 5, and each limit bolt is arranged in the corresponding connecting holes at both ends of the upper frame shell 2 and the lower frame shell 3. By adjusting the position height of each limit bolt to be consistent, the gap between the upper and lower frame shells can be adjusted, and then the gap between the electrode plate and the corona roller can be adjusted to ensure the uniformity of the corona of the foaming material. More preferably, the limit bolts 5 are symmetrically arranged at both ends of the upper frame shell 2 and the lower frame shell 3, and symmetrically arranged at the four corners. When producing materials of different thicknesses, the utility model can quickly adjust the gap between the electrode plate and the material through the limit bolts, reduce the debugging time, and ensure the corona effect of the material.

[0049] Preferably, the upper frame shell 2 and the lower frame shell 3 are arranged on the frame, and there is no restriction on the specific structure of the frame, and it is only necessary to play a stable supporting role for the upper frame shell 2 and the lower frame shell 3. More preferably, the lower frame shell 3 is fixedly arranged on the frame, and the upper frame shell 2 realizes relative movement with the lower frame shell 3 under the action of the opening and closing cylinder 4.

[0050] Further preferably, at least one set of corona components is provided between the upper frame shell 2 and the lower frame shell 3. For example, in one embodiment, when only one side of the foaming material needs to be corona treated, one set of corona components is provided. One of the corona roller 11 and the electrode plate 12 is provided on the upper frame shell 2, and the other is provided on the lower frame shell 3. When the upper frame shell 2 and the lower frame shell 3 are pressed together under the action of the opening and closing cylinder 4 and the limit bolt 5, the foaming material passes between the corona roller 11 and the electrode plate 12 to achieve one-side corona treatment.

[0051] For example, in another embodiment, Figures 2 to 4As shown, when corona treatment is performed on both sides of the foaming material at the same time, two groups of corona components are set, wherein the corona roller 11 and the electrode plate 12 of one group of corona components are respectively arranged on the upper frame shell 2 and the lower frame shell 3, and the corona roller 11 and the electrode plate 12 of the other group of corona components are respectively arranged on the lower frame shell 3 and the upper frame shell 2. When the upper frame shell 2 and the lower frame shell 3 are pressed together under the action of the opening and closing cylinder 4 and the limit bolt 5, the foaming material passes through the two groups of corona components in sequence and realizes the corona treatment on both sides at the same time. Of course, when two groups of corona components are set, it is still applicable to the situation where only one side of the foaming material needs to be corona treated, and it is only necessary to close the electrode plate 12 of one of the corona components.

[0052] It can be understood that after the upper frame shell 2 and the lower frame shell 3 are closed under the action of the opening and closing cylinder 4 and the limit bolt 5 and the gap is adjusted, the electrode plate and the corona roller are adjusted to a working state in contact with the material, and at the same time, openings are provided on both sides of the upper frame shell 2 and the lower frame shell 3 along the penetration direction of the foam material for its passage.

[0053] It is also understandable that in the foam material production process, each sheet-passing roller needs to be arranged in parallel, that is, the sheet-feeding roller 1 and the corona roller 11 of the corona assembly are arranged in parallel. In addition, when necessary, other parallel rollers can be arranged in the foam material traction path according to the specific sheet-passing situation.

[0054] Further preferably, an upper air inlet 6 and a lower air inlet 7 are respectively provided on the upper frame housing 2 and the lower frame housing 3, and the upper air inlet 6 and the lower air inlet 7 are respectively connected to the exhaust motor. Since high-concentration ozone is generated when the corona device is working, the high-concentration ozone in the frame housing can be sucked out and diluted through the air inlet.

[0055] The utility model can timely extract excess ozone through the air suction port, reduce ozone concentration and overflow, protect equipment parts and components, and improve the production environment.

[0056] Preferably, a heating rod 13 is further provided between the upper frame housing 2 and the lower frame housing 3. The heating rod 13 is preferably provided inside the lower frame housing 3. During normal production, the heating rod is turned on for heating to reduce the air humidity in the corona environment. Preferably, the heating rod 13 is heated by resistance; more preferably, a humidity detector is integrated on the heating rod 13. When the humidity in the corona area exceeds a set threshold range, the heating rod is turned on.

[0057] The utility model can control the air humidity in the corona area by arranging the electric heating rod, thereby ensuring a good corona effect and improving the corona yield.

[0058] It should also be noted that the corona device for continuous production of foamed materials of the utility model is preferably arranged in a production line for continuous production of foamed materials. For example, the corona device can be arranged after the foaming furnace and before the cutting device, that is, the foamed material is subjected to corona treatment, and the cutting and trimming treatment is performed after the corona treatment is completed. Of course, the specific application of the corona device of the utility model can be adjusted according to the actual application scenario, and the corona device of the utility model can not only be used in the production line, but also can be set separately, so the utility model does not limit its specific application.

[0059] Taking the specific embodiment shown in the accompanying drawings as an example, the corona device for continuous production of foaming materials of the utility model has the following working process:

[0060] The foaming material passes through the film feed roller 1 and two groups of corona components in sequence, and the upper frame shell 2 and the lower frame shell 3 are closed by opening and closing the cylinder 4; then the gap between the upper and lower frame shells is adjusted by adjusting the limit bolts 5, so that the gap between the adjustment electrode plate 12 and the corona roller 11 is consistent. When the foaming material is subjected to traction, the two groups of corona components simultaneously perform corona treatment on both sides of the foaming material, and at the same time, the rough-surfaced film feed roller 1 rotates continuously under the traction of the foaming material, so that the convex wheel 8 cooperates with the self-stop sensor 9 during the rotation process to enable it to output a continuous alternating intermittent signal. If the signal sensed by the self-stop sensor 9 does not alternately interrupt, the foaming material is not pulled and moved. At this time, the electric control box 11 controls the electrode plate 12 to cut off the power, and the corona action stops.

[0061] It is easy for those skilled in the art to understand that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A corona device for continuous production of foamed materials, characterized in that: It comprises a film feeding roller (1) and a corona assembly arranged along the film feeding direction; The corona assembly comprises at least one group of corona rollers (11) and electrode plates (12) arranged opposite to each other, and the electrode plates (12) are electrically connected to the electric control box (10); The end of the film feeding roller (1) is provided with a convex wheel (8) and a self-stop sensor (9) matched therewith; the self-stop sensor (9) is electrically connected to the electric control box (10).

2. The corona device for continuous production of foamed materials according to claim 1, characterized in that: The surface of the film feeding roller (1) is rough.

3. The corona device for continuous production of foamed materials according to claim 1, characterized in that: The corona assembly is arranged between the upper frame shell (2) and the lower frame shell (3).

4. The corona device for continuous production of foamed materials according to claim 3, characterized in that: An opening and closing cylinder (4) is provided at both ends of the upper frame shell (2) and the lower frame shell (3); and / or, Limit bolts (5) are provided at both ends of the upper frame shell (2) and the lower frame shell (3).

5. The corona device for continuous production of foamed materials according to claim 3, characterized in that: The upper frame shell (2) and the lower frame shell (3) are arranged on the frame.

6. The corona device for continuous production of foamed materials according to any one of claims 3 to 5, characterized in that: A group of corona components is provided between the upper frame shell (2) and the lower frame shell (3); Of the corona roller (11) and the electrode plate (12) of the corona assembly, one is arranged on the upper frame shell (2), and the other is arranged on the lower frame shell (3).

7. The corona device for continuous production of foamed materials according to any one of claims 3 to 5, characterized in that: Two groups of corona components are provided between the upper frame shell (2) and the lower frame shell (3); The corona roller (11) and the electrode plate (12) of one group of the corona assemblies are respectively arranged on the upper frame shell (2) and the lower frame shell (3), and the corona roller (11) and the electrode plate (12) of the other group of the corona assemblies are respectively arranged on the lower frame shell (3) and the upper frame shell (2).

8. The corona device for continuous production of foamed materials according to any one of claims 3 to 5, characterized in that: An upper air inlet (6) and a lower air inlet (7) are respectively provided on the upper frame shell (2) and the lower frame shell (3), and the upper air inlet (6) and the lower air inlet (7) are respectively connected to an exhaust motor.

9. The corona device for continuous production of foamed materials according to any one of claims 3 to 5, characterized in that: A heating rod (13) is also provided between the upper frame shell (2) and the lower frame shell (3).

10. The corona device for continuous production of foamed materials according to claim 9, characterized in that: The heating rod (13) is arranged inside the lower frame housing (3); and / or, The heating rod (13) is integrated with a humidity detector.

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