Corona polarization device for polyethylene outer protective tube production

Abstract

The utility model belongs to the technical field of polyethylene outer protective tube production, and particularly relates to a corona polarization device for polyethylene outer protective tube production, which comprises a vacuum sizing box and an outer protective tube, and a corona polarization device and a guide device are arranged on the outer surface of the outer protective tube. According to the corona polarization device for polyethylene outer protection tube production, when the corona polarization device faces outer protection tubes with different diameters, electromagnets are electrified, so that magnetic sliding rods are pushed to slide towards the outer side along sliding sleeves, inner electrode plates are pushed to be tightly attached to the inner walls of the outer protection tubes, corona polarization processing is conducted on the outer protection tubes in cooperation with outer electrodes, and the corona polarization device can adapt to the outer protection tubes with different inner diameters; when the outer protection pipe is extruded out of the vacuum sizing box, the electromagnet plate is electrified through the conductive column, so that suction force is generated, the base is adsorbed to the original position, the outer protection pipe drives the rolling wheels to rotate when moving, and therefore the installation column is located in the original position all the time, and corona polarization machining is conducted on the outer protection pipe in cooperation with an outer electrode.

Description

Technical Field

[0001] The utility model relates to the technical field of polyethylene outer protective tube production, in particular to a corona polarization device for polyethylene outer protective tube production. Background Art

[0002] The polyethylene outer protective pipe is made of high-density polyethylene material. Polyethylene material is non-polar and difficult to bond firmly with other materials. During the construction process, it is not convenient to connect the pipe interface of the polyethylene outer protective pipe. Moreover, once the polyethylene outer protective pipe is damaged, it will be difficult to repair it. In industry, the polyethylene outer protective pipe leaving the vacuum sizing box is usually treated with corona polarization. However, due to the different diameters of polyethylene outer protective pipes, the commonly used corona polarization device cannot adapt to a variety of polyethylene outer protective pipes with different diameters, which causes inconvenience in practical application.

[0003] As disclosed in Chinese patent announcement number CN207044683U, a corona polarization device for producing polyethylene outer protective tube is disclosed. When in use, the outer electrode is placed on the workpiece, and a suitable electrode brush is selected, and the nut of the electrode brush is tightened on the screw. Compress the adjustment spring to place the inner electrode in the workpiece at a position corresponding to the outer electrode. Pull one end of the pull wire on the extrusion device, tie the end of the pull wire to the pull ring and put it in a tight state, and then the corona polarization operation can be performed. When the diameter of the workpiece to be treated with corona polarization is different, after the inner electrode is placed on the inner wall of the workpiece, the adjustment spring automatically adjusts the distance between the roller and the support frame according to the size of the workpiece diameter, keeps the roller in contact with the inner wall of the workpiece, improves the support, and the length of the electrode brush allows it to still be closely contacted with the inner wall of the workpiece to adapt to different diameters. When the change in the diameter of the workpiece to be treated with corona polarization exceeds the adjustment range of the electrode brush itself, twist the nut to disengage it from the connecting ring, select a suitable electrode brush, and twist the nut to fix it to the connecting ring. It can adapt to workpieces with different diameters and has strong practicality.

[0004] However, the polyethylene outer protective tube production corona polarization device in the above application needs to replace different electrode brushes when facing different pipe diameters, which is more troublesome to use, and the motor brush may be squeezed and dispersed when facing the inner walls of different pipe diameters, affecting the use. Therefore, there are certain limitations.

[0005] For this reason, we urgently need to provide a corona polarization device for producing polyethylene outer sheath tube. Utility Model Content

[0006] The utility model aims to provide a corona polarization device for producing polyethylene outer sheath tubes, so as to solve the problem that the corona polarization device for producing polyethylene outer sheath tubes proposed in the above-mentioned background technology needs to replace different electrode brushes when facing different tube diameters, which is troublesome to use, and the motor brush may be squeezed and dispersed when facing the inner walls of different tube diameters, thus affecting the use.

[0007] To achieve the above purpose, the utility model provides the following technical solutions: a polyethylene outer protective tube production corona polarization device, comprising a vacuum sizing box and an outer protective tube, the outer protective tube is located at the discharge port of the vacuum sizing box, and the outer surface of the outer protective tube is provided with a corona polarization device and a guiding device.

[0008] The corona polarization device includes a base plate, a support rod, an outer electrode, a mounting column, a movable assembly, a polarization assembly, and a fixed assembly. The base plate is mounted on the left side of a vacuum sizing box, two support rods are fixedly connected to the front and rear ends of the base plate, the outer electrode is mounted on the top of the support rod and surrounds the outer surface of the outer protective tube, the mounting column is placed inside the outer protective tube, two groups of movable assemblies are respectively mounted on the left and right ends of the mounting column, six groups of polarization assemblies are fixedly connected to the outer surface of the mounting column in a ring shape, and two groups of fixed assemblies are respectively mounted on the left and right sides of the base plate.

[0009] A further improvement is that the moving assembly includes an electric lifting rod, a base, and rollers. The electric lifting rod is fixedly connected to the left side of the bottom of the mounting column, the base is fixedly connected to the bottom of the electric lifting rod, and the two rollers are respectively installed on the front and rear sides of the base. When facing outer protective tubes with different diameters, the electric lifting rod is started to push the mounting column to the center point of the outer protective tube, which facilitates subsequent corona polarization processing of the outer protective tube.

[0010] A further improvement is that the polarization assembly includes a sliding sleeve, a sliding rod, an inner electrode plate, an electromagnet, and a tension spring, the sliding sleeve is fixedly connected to the outer surface of the mounting column, the sliding rod is slidably connected to the inside of the sliding sleeve, the inner electrode plate is fixedly connected to the outer end of the sliding rod, the electromagnet is installed on the inner wall of the sliding sleeve, and the tension spring is fixedly connected between the sliding rod and the electromagnet.

[0011] A further improvement is that the base and the slide rod are both made of magnetic material. When facing outer protective tubes of different diameters, the electromagnet is energized to push the magnetic slide rod to slide outward along the sliding sleeve, thereby pushing the inner electrode plate close to the inner wall of the outer protective tube, and cooperating with the outer electrode to perform corona polarization processing on the outer protective tube, and can adapt to outer protective tubes of different inner diameters, with a wider range of applications and more convenient to use. After the corona polarization is completed, the electromagnet is stopped from being energized, and the tension spring is reset under the action of its own elasticity, thereby pulling the slide rod to slide into the interior of the sliding sleeve, retracting the inner electrode plate, and avoiding the inner electrode plate from continuously rubbing against the inner wall of the outer protective tube when the outer protective tube is collected, causing damage to the inner electrode plate.

[0012] A further improvement is that the fixing assembly includes a conductive column and an electromagnet plate, the conductive column is installed on the left side of the upper surface of the base plate, and the electromagnet plate is fixedly connected to the top of the conductive column and is closely attached to the outer wall of the outer protective tube.

[0013] A further improvement is that the positions of the base and the electromagnet plate correspond vertically. When the outer protective tube is extruded from the vacuum sizing box, the electromagnet plate is energized through the conductive column, thereby generating suction to adsorb the base in place, and the outer protective tube moves to drive the roller to rotate, so that the installation column is always in place, thereby cooperating with the external electrode to perform corona polarization processing on the outer protective tube.

[0014] A further improvement is that the guiding device includes a guiding box, a rotating bearing, and a guiding roller. The guiding box is installed on the right side of the vacuum sizing box. Two groups of rotating bearings are installed equidistantly on the front and rear sides of the guiding box. Several guiding rollers are respectively rotatably connected to the inside of the rotating bearings. When the outer protective tube is extruded and moved outward, the friction force generated when it contacts the guiding roller drives the guiding roller to rotate inside the rotating bearing, thereby better guiding the outer protective tube to be discharged.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The corona polarization device for producing polyethylene outer protective tubes, when facing outer protective tubes with different diameters, energizes the electromagnet to push the magnetic slide bar to slide outward along the sliding sleeve, thereby pushing the inner electrode plate to cling to the inner wall of the outer protective tube, and cooperates with the outer electrode to perform corona polarization processing on the outer protective tube. It can adapt to outer protective tubes with different inner diameters, has a wider range of applications, and is more convenient to use.

[0017] 2. The polyethylene outer protective tube is produced by a corona polarization device. When the outer protective tube is extruded from a vacuum sizing box, the electromagnet plate is energized through the conductive column, thereby generating suction to adsorb the base in place, and the outer protective tube moves to drive the roller to rotate, so that the installation column is always in place, thereby cooperating with the outer electrode to perform corona polarization processing on the outer protective tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view structural schematic diagram of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the independent side view structure of the mobile component and the polarization component of the utility model;

[0021] Figure 4 It is a schematic cross-sectional structure diagram of the polarization component of the present utility model.

[0022] In the figure: 1. Vacuum sizing box; 2. Outer protective tube; 301. Bottom plate; 302. Support rod; 303. Outer electrode; 304. Mounting column; 305. Moving assembly; 3051. Electric lifting rod; 3052. Base; 3053. Roller; 306. Polarization assembly; 3061. Sliding sleeve; 3062. Sliding rod; 3063. Inner electrode plate; 3064. Electromagnet; 3065. Tension spring; 307. Fixed assembly; 3071. Conductive column; 3072. Electromagnet plate; 401. Guide box; 402. Rotating bearing; 403. Guide roller. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0025] Embodiment 1:

[0026] A corona polarization device for producing polyethylene outer sheath tubes comprises a vacuum sizing box 1 and an outer sheath tube 2. The outer sheath tube 2 is located at a discharge port of the vacuum sizing box 1, and a corona polarization device is arranged on the outer surface of the outer sheath tube 2.

[0027] The corona polarization device includes a base plate 301, a support rod 302, an outer electrode 303, a mounting column 304, a movable assembly 305, a polarization assembly 306, and a fixed assembly 307. The base plate 301 is installed on the left side of the vacuum sizing box 1, two support rods 302 are fixedly connected to the front and rear ends of the base plate 301, the outer electrode 303 is installed on the top of the support rod 302 and surrounds the outer surface of the outer protective tube 2, the mounting column 304 is placed inside the outer protective tube 2, two groups of movable assemblies 305 are respectively installed on the left and right ends of the mounting column 304, six groups of polarization assemblies 306 are fixedly connected to the outer surface of the mounting column 304 in a ring shape, and two groups of fixed assemblies 307 are respectively installed on the left and right sides of the base plate 301.

[0028] The moving assembly 305 includes an electric lifting rod 3051, a base 3052, and a roller 3053. The electric lifting rod 3051 is fixedly connected to the left side of the bottom of the mounting column 304, the base 3052 is fixedly connected to the bottom of the electric lifting rod 3051, and the two rollers 3053 are respectively installed on the front and rear sides of the base 3052. When facing outer protective tubes 2 with different diameters, the electric lifting rod 3051 is started to push the mounting column 304 to the center point of the outer protective tube 2, so as to facilitate the subsequent corona polarization processing of the outer protective tube 2.

[0029] The polarization assembly 306 includes a sleeve 3061, a slide rod 3062, an inner electrode plate 3063, and an electromagnet 3064. The sleeve 3061 is fixedly connected to the outer surface of the mounting column 304, the slide rod 3062 is slidably connected to the inside of the sleeve 3061, the inner electrode plate 3063 is fixedly connected to the outer end of the slide rod 3062, and the electromagnet 3064 is installed on the inner wall of the sleeve 3061.

[0030] The base 3052 and the slide bar 3062 are both made of magnetic materials. When facing outer protective tubes 2 of different diameters, the electromagnet 3064 is energized to push the magnetic slide bar 3062 to slide outward along the sleeve 3061, thereby pushing the inner electrode plate 3063 to fit tightly against the inner wall of the outer protective tube 2, and cooperating with the outer electrode 303 to perform corona polarization processing on the outer protective tube 2. It can adapt to outer protective tubes 2 of different inner diameters, has a wider range of applications, and is more convenient to use.

[0031] The fixing assembly 307 includes a conductive column 3071 and an electromagnet plate 3072 . The conductive column 3071 is installed on the left side of the upper surface of the bottom plate 301 . The electromagnet plate 3072 is fixedly connected to the top of the conductive column 3071 and is closely attached to the outer wall of the outer protective tube 2 .

[0032] The positions of the base 3052 and the electromagnet plate 3072 correspond vertically. When the outer protective tube 2 is extruded from the vacuum sizing box 1, the electromagnet plate 3072 is energized through the conductive column 3071, thereby generating suction to adsorb the base 3052 in place, and the outer protective tube 2 moves to drive the roller 3053 to rotate, so that the mounting column 304 is always in place, thereby cooperating with the outer electrode 303 to perform corona polarization processing on the outer protective tube 2.

[0033] Embodiment 2:

[0034] On the basis of Example 1, the polarization assembly 306 also includes a tension spring 3065, which is fixedly connected between the slide rod 3062 and the electromagnet 3064. After the corona polarization is completed, the electromagnet 3064 is powered off, and the tension spring 3065 is reset under the action of its own elasticity, thereby pulling the slide rod 3062 into the interior of the sleeve 3061 and retracting the inner electrode plate 3063, thereby avoiding the inner electrode plate 3063 from continuously rubbing against the inner wall of the outer protective tube 2 when the outer protective tube 2 is collected, causing damage to the inner electrode plate 3063.

[0035] Embodiment three:

[0036] On the basis of Example 2, a guiding device is further provided on the outer surface of the outer protective tube 2, and the guiding device includes a guiding box 401, a rotating bearing 402, and a guiding roller 403. The guiding box 401 is installed on the right side of the vacuum sizing box 1, and two sets of rotating bearings 402 are equidistantly installed on the front and rear sides of the guiding box 401, and a plurality of guiding rollers 403 are rotatably connected to the inside of the rotating bearing 402.

[0037] When the outer protective tube 2 is extruded and moved outward, the friction force generated when it contacts the guide roller 403 drives the guide roller 403 to rotate inside the rotary bearing 402, thereby better guiding the outer protective tube 2 to be discharged.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A corona polarization device for producing a polyethylene outer sheath tube, comprising a vacuum sizing box (1) and an outer sheath tube (2), wherein the outer sheath tube (2) is located at a discharge port of the vacuum sizing box (1), and is characterized in that: The outer surface of the outer protective tube (2) is provided with a corona polarization device and a guiding device; The corona polarization device comprises a bottom plate (301), a support rod (302), an outer electrode (303), a mounting column (304), a movable assembly (305), a polarization assembly (306), and a fixed assembly (307). The bottom plate (301) is mounted on the left side of a vacuum sizing box (1). Two support rods (302) are fixedly connected to the front and rear ends of the bottom plate (301). The outer electrode (303) is mounted on the top of the support rod (302) and surrounds the outer surface of an outer protective tube (2). The mounting column (304) is placed inside the outer protective tube (2). Two groups of movable assemblies (305) are respectively mounted on the left and right ends of the mounting column (304). Six groups of polarization assemblies (306) are fixedly connected to the outer surface of the mounting column (304) in an annular shape. Two groups of fixed assemblies (307) are respectively mounted on the left and right sides of the bottom plate (301).

2. A polyethylene outer sheath tube production corona polarization device according to claim 1, characterized in that: The moving assembly (305) comprises an electric lifting rod (3051), a base (3052), and rollers (3053); the electric lifting rod (3051) is fixedly connected to the left side of the bottom of the mounting column (304); the base (3052) is fixedly connected to the bottom of the electric lifting rod (3051); and the two rollers (3053) are respectively installed on the front and rear sides of the base (3052).

3. A polyethylene outer sheath tube production corona polarization device according to claim 2, characterized in that: The polarization component (306) comprises a sliding sleeve (3061), a sliding rod (3062), an inner electrode plate (3063), an electromagnet (3064), and a tension spring (3065); the sliding sleeve (3061) is fixedly connected to the outer surface of the mounting column (304); the sliding rod (3062) is slidably connected to the inside of the sliding sleeve (3061); the inner electrode plate (3063) is fixedly connected to the outer end of the sliding rod (3062); the electromagnet (3064) is installed on the inner wall of the sliding sleeve (3061); and the tension spring (3065) is fixedly connected between the sliding rod (3062) and the electromagnet (3064).

4. A polyethylene outer sheath tube production corona polarization device according to claim 3, characterized in that: The base (3052) and the sliding rod (3062) are both made of magnetic material.

5. A polyethylene outer sheath pipe production corona polarization device according to claim 4, characterized in that: The fixing assembly (307) comprises a conductive column (3071) and an electromagnet plate (3072), wherein the conductive column (3071) is mounted on the left side of the upper surface of the base plate (301), and the electromagnet plate (3072) is fixedly connected to the top of the conductive column (3071) and is closely attached to the outer wall of the outer protective tube (2).

6. A polyethylene outer sheath tube production corona polarization device according to claim 5, characterized in that: The base (3052) and the electromagnet plate (3072) are positioned vertically corresponding to each other.

7. A polyethylene outer sheath pipe production corona polarization device according to claim 1, characterized in that: The guiding device comprises a guiding box (401), a rotating bearing (402), and a guiding roller (403); the guiding box (401) is installed on the right side of the vacuum sizing box (1); two groups of rotating bearings (402) are installed equidistantly on the front and rear sides of the guiding box (401); and a plurality of guiding rollers (403) are rotatably connected to the inside of the rotating bearings (402).

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