Static elimination structure and calendering equipment using same

Abstract

The utility model discloses a static electricity elimination structure and rolling equipment using the same. The static electricity elimination structure comprises a fixed seat, a supporting arm, a swinging arm, a conductive unit and a driving unit, one end of the supporting arm is arranged on the fixed seat; one end of the swinging arm is hinged to the other end of the supporting arm; the conductive unit is arranged at the other end of the swinging arm; the driving end of the driving unit is in transmission connection with the swing arm and used for driving the swing arm to rotate with the hinged position of the swing arm and the supporting arm as a rotating shaft, and the conductive unit is made to be tightly attached to or away from the side wall of the knurling roller. The static elimination structure is provided with a supporting arm, a swinging arm, a conductive unit and a driving unit, the driving unit drives the swinging arm to rotate with the hinged position of the swinging arm and the supporting arm as a rotating shaft, and the conductive unit is made to be close to the embossing roller; the conductive unit has electrical conductivity and can lead out static electricity on the embossing roller and lead out and take away the static electricity on the finished film, so that the purpose of eliminating the static electricity is achieved, and the quality of the finished film is improved.

Description

Technical Field

[0001] The utility model relates to the field of static elimination equipment, in particular to a static elimination structure and calendering equipment using the same. Background Art

[0002] In film production, the raw materials need to first undergo processing steps such as stirring, heating and mixing, filtering and extrusion to become colloidal raw materials, and then be squeezed and stretched between the large rollers of the calender, and stretched into shape by the take-off wheel group to form a film; then, the desired pattern is extruded by the embossing wheel group, and then cooled and shaped by the cooling wheel group, and finally the product is rolled and packaged.

[0003] Embossing mechanism plays a very important role in film production equipment. It can add texture or pattern to the surface of the film, provide additional visual and tactile effects, enhance the aesthetics of the film, and improve grip and anti-slip properties.

[0004] However, in the prior art, during film forming production, a large amount of static electricity is generated on the film surface due to the extrusion shear force and friction between the rollers. The static electricity absorbs impurities such as dust in the surrounding air to the surface of the film, thereby causing some marks on the film after embossing, which is called static electricity. This mark has a great impact on product quality. If the static electricity mark is not dealt with in a timely manner, it will lead to unqualified product quality, resulting in returns, rework, etc. Utility Model Content

[0005] The purpose of the utility model is to provide a static elimination structure and a calendering device using the same, so as to solve the problem of static marks generated on the film after embossing during the film forming production.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] The utility model provides a static elimination structure for eliminating static electricity of an embossing roller, comprising a fixed seat, a support arm, a swing arm, a conductive unit and a drive unit;

[0008] One end of the support arm is arranged on a fixed seat, and one end of the swing arm is hinged to the other end of the support arm; the conductive unit is arranged at the other end of the swing arm; the driving end of the driving unit is transmission-connected to the swing arm, and is used to drive the swing arm to rotate with the hinge between the swing arm and the support arm as the rotation axis, and to make the conductive unit close to or away from the side wall of the embossing roller; the conductive unit is used to conduct static electricity of the embossing roller.

[0009] In the static elimination structure, the conductive unit includes a conductive wheel, a grounding wire and a grounding body;

[0010] The conductive wheel is rotatably mounted on the other end of the swing arm, one end of the grounding wire is connected to the conductive wheel, and the other end of the grounding wire is connected to a grounding body; and the grounding body is connected to the ground.

[0011] In the static elimination structure, a rotating connecting shaft is provided at the proximal end of the other end of the swing arm, the axis of the rotating connecting shaft is parallel to the axis of the embossing roller, the conductive wheel is rotatably assembled at the proximal end of the other end of the swing arm through the rotating connecting shaft, and one end of the grounding wire is connected to the rotating connecting shaft.

[0012] In the static elimination structure, the conductive wheel is made of copper.

[0013] In the static elimination structure, the drive unit includes a cylinder and a compressed gas pipeline; the cylinder is arranged on a fixed seat, and a cavity is provided in the cylinder. The piston of the cylinder divides the cavity into a first chamber and a second chamber. The first chamber is provided with a first connecting pipeline, and the second chamber is provided with a second connecting pipeline.

[0014] The compressed gas pipeline is connected to an external compressed gas source; the compressed gas pipeline is sequentially provided with a regulating valve and a passage control unit, the passage control unit includes a reversing valve and a reversing controller, the reversing valve is provided at the exhaust end of the regulating valve, and the reversing valve is electrically connected to the reversing controller; the regulating valve is used to adjust the pressure of the compressed gas; the reversing valve is provided with a first air intake channel, a second air intake channel, a first exhaust channel, and a second exhaust channel; when the cylinder shaft of the cylinder is extended, the first air intake channel is connected to the first connecting pipeline, and the second exhaust channel is connected to the second connecting pipeline; when the cylinder shaft of the cylinder is retracted, the second air intake channel is connected to the second connecting pipeline, and the first exhaust channel is connected to the first connecting pipeline;

[0015] The reversing controller controls the compressed gas to enter the first chamber and discharge the gas in the second chamber through the reversing valve, or controls the compressed gas to enter the second chamber and discharge the gas in the first chamber to control the cylinder shaft of the cylinder to extend or retract.

[0016] In the static elimination structure, a guide slot is provided in the middle of the swing arm along the length direction of the swing arm, and a sliding member is provided at one end of the cylinder shaft of the cylinder, and the sliding member is rollingly assembled in the guide slot.

[0017] In the static elimination structure, the compressed gas pipeline is further provided with a pressure gauge, and the pressure gauge is arranged in the pipeline between the regulating valve and the reversing valve.

[0018] The utility model provides a calendering device. Both sides of the embossing roller of the calendering device are respectively provided with the above-mentioned static elimination structure.

[0019] A technical solution in the present invention can have the following beneficial effects:

[0020] The static electricity elimination structure is provided with a support arm, a swing arm, a conductive unit and a drive unit. The drive unit drives the swing arm to rotate with the hinge between the swing arm and the support arm as the rotation axis, so that the conductive unit is close to the embossing roller. The conductive unit is conductive and can conduct away the static electricity on the embossing roller and the static electricity on the finished film, thereby achieving the purpose of eliminating static electricity and improving the quality of the finished film. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the working of one embodiment of the present utility model;

[0022] Figure 2 This is a schematic structural diagram of one embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the positions of the embossing roller and the conductive wheel in the working state in one embodiment of the present utility model;

[0024] In the accompanying drawings: embossing roller 1; fixed base 2, support arm 3, swing arm 4, conductive unit 5, drive unit 6;

[0025] Rotating connecting shaft 41; guide chute 42, sliding member 43; conductive wheel 51, grounding wire 52, grounding body 53; cylinder 61, compressed gas pipeline 62;

[0026] A first connecting pipeline 601 ; a second connecting pipeline 602 ; a regulating valve 621 ; a reversing valve 622 , a reversing controller 623 ; and a pressure gauge 624 . DETAILED DESCRIPTION

[0027] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operate in a specific direction. Therefore, they should not be understood as limitations on the present invention. In addition, features defined as "first" or "second" may explicitly or implicitly include one or more such features, and are used to distinguish between the described features without distinction of order or importance.

[0029] In the description of the present invention, unless otherwise specified, “a plurality of” means two or more.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0031] Please refer to Figures 1 to 3 , the utility model provides a static elimination structure for eliminating static electricity of an embossing roller 1, comprising a fixing seat 2, a supporting arm 3, a swing arm 4, a conductive unit 5 and a driving unit 6;

[0032] One end of the support arm 3 is arranged on the fixed seat 2, and one end of the swing arm 4 is hinged to the other end of the support arm 3; the conductive unit 5 is arranged at the other end of the swing arm 4; the driving end of the driving unit 6 is transmission-connected to the swing arm 4, and is used to drive the swing arm 4 to rotate with the hinge between the swing arm 4 and the support arm 3 as the rotation axis, and to make the conductive unit 5 close to or away from the side wall of the embossing roller 1; the conductive unit 5 is used to conduct static electricity of the embossing roller 1.

[0033] The static elimination structure is provided with a support arm 3, a swing arm 4, a conductive unit 5 and a drive unit 6. The drive unit 6 drives the swing arm 4 to rotate with the hinge between the swing arm 4 and the support arm 3 as the rotation axis, so that the conductive unit 5 is close to the embossing roller 1; the conductive unit 5 is conductive and can conduct away the static electricity on the embossing roller 1, and also conduct away the static electricity on the finished film, thereby achieving the purpose of eliminating static electricity and improving the quality of the finished film.

[0034] In existing film production equipment, the size of the embossing roller 1 needs to be replaced with different embossing wheels according to different orders. Therefore, the static elimination structure adjusts the distance between the conductive unit 5 and the embossing roller 1 through the swing arm 4 and the drive unit 6, thereby improving the adaptability of the static elimination structure and being able to adapt to embossing rollers 1 of different sizes.

[0035] When replacing the embossing roller 1, the drive unit 6 drives the swing arm 4 to rotate in the opposite direction about the hinge between the swing arm 4 and the support arm 3, moving the conductive unit 5 away from the embossing roller 1. This prevents collision between the embossing roller 1 and the conductive unit 5, which could damage the roller surface. The swing arm 4 and the drive unit 6 drive the conductive unit 5 to swing, automatically adapting the contact position between the conductive unit 5 and the roller surface of the embossing roller 1 according to the size of the embossing roller 1.

[0036] Furthermore, the conductive unit 5 includes a conductive wheel 51, a grounding wire 52 and a grounding body 53;

[0037] The conductive wheel 51 is rotatably mounted on the other end of the swing arm 4 , one end of the grounding wire 52 is connected to the conductive wheel 51 , and the other end of the grounding wire 52 is connected to a grounding body 53 ; the grounding body 53 is connected to the ground.

[0038] The overall grounding resistance of the conductive unit 5 is less than 2Ω, and the grounding body 53 maintains a good connection with the earth. 2 The multi-strand copper wire acts as a grounding wire 52, ensuring that static electricity on the rubber roller surface is smoothly conducted to the ground. The conductive wheel 51 rotates to assemble the swing arm 4. When the film production equipment begins operation, the embossing roller 1 begins to rotate, and the conductive wheel 51 can rotate with the embossing roller 1, preventing friction between the conductive wheel 51 and the embossing roller 1, which could damage the embossing roller 1. When the conductive wheel 51 contacts the embossing roller 1, static electricity on the film is transferred to the ground through the embossing roller 1, the conductive wheel 51, the grounding wire 52, and the grounding body 53, achieving the purpose of eliminating static electricity.

[0039] Furthermore, a rotating connecting shaft 41 is provided at the proximal end of the other end of the swing arm 4, and the axis of the rotating connecting shaft 41 is parallel to the axis of the embossing roller 1. The conductive wheel 51 is rotatably assembled at the proximal end of the other end of the swing arm 4 through the rotating connecting shaft 41, and one end of the grounding wire 52 is connected to the rotating connecting shaft 41.

[0040] The rotating connecting shaft 41 is made of a conductive metal such as iron, stainless steel, or copper. The electrical connection between the rotating connecting shaft 41 and the conductive wheel 51 facilitates the conduction of static electricity from the conductive wheel 51 to the ground wire 52. In a specific embodiment of the present invention, the swing arm 4 is rotatably assembled with the rotating connecting shaft 41. This structure is simple and easy to install, making it easy for workers to disassemble and maintain.

[0041] Preferably, the conductive wheel 51 is made of copper.

[0042] Red copper has good electrical conductivity and can smoothly introduce static electricity from the embossing roller 1 into the earth by contacting the embossing roller 1 .

[0043] Specifically, the drive unit 6 includes a cylinder 61 and a compressed gas pipeline 62; the cylinder is disposed on the fixed base 2, and a cavity is defined in the cylinder 61. The piston of the cylinder 61 divides the cavity into a first chamber and a second chamber. The first chamber is provided with a first connecting pipeline 601, and the second chamber is provided with a second connecting pipeline 602.

[0044] The compressed gas pipeline 62 is connected to an external compressed gas source; the compressed gas pipeline 62 is sequentially provided with a regulating valve 621 and a passage control unit, the passage control unit including a reversing valve 622 and a reversing controller 623, the reversing valve 622 being provided at the exhaust end of the regulating valve 621, the reversing valve 622 being electrically connected to the reversing controller 623; the regulating valve 621 is used to adjust the pressure of the compressed gas; the reversing valve 622 is provided with a first air intake channel, a second air intake channel, a first exhaust channel, and a second exhaust channel; when the cylinder shaft of the cylinder 61 is extended, the first air intake channel is connected to the first connecting pipeline 601, and the second exhaust channel is connected to the second connecting pipeline 602; when the cylinder shaft of the cylinder 61 is retracted, the second air intake channel is connected to the second connecting pipeline 602, and the first exhaust channel is connected to the first connecting pipeline 601;

[0045] The reversing controller 623 controls the compressed gas to enter the first chamber and discharge the gas from the second chamber through the reversing valve 622, or controls the compressed gas to enter the second chamber and discharge the gas from the first chamber to control the cylinder shaft of the cylinder 61 to extend or retract.

[0046] The structure of cylinder 61 can be similar to that of existing cylinders. Compressed gas line 62 is used to supply compressed gas to cylinder 61. Cylinder 61 has a cavity, which is divided into a first chamber and a second chamber by a piston. The cylinder shaft of cylinder 61 is connected to the piston and passes through the first chamber to extend from cylinder 61. To control the extension of the cylinder shaft of cylinder 61, compressed gas line 62 supplies compressed gas to the second chamber. At this time, the pressure in the second chamber is greater than that in the first chamber, causing the volume of the second chamber to gradually increase. The piston moves upward, compressing the first chamber, expelling gas from the first chamber, and driving the cylinder shaft to extend from the cylinder. To control the retraction of the cylinder shaft of cylinder 61, compressed gas line 62 supplies compressed gas to the first chamber. At this time, the pressure in the first chamber is greater than that in the second chamber, causing the volume of the first chamber to gradually increase. The piston moves downward, compressing the second chamber, expelling gas from the second chamber, and driving the cylinder shaft to retract into the cylinder.

[0047] In practical applications, the external compressed gas source is specifically an air compressor. The compressed gas pressure coming out of the air compressor is relatively high. The pressure is reduced by adjusting the pressure regulating valve to avoid damage to the cylinder 61 or the compressed gas pipeline 62 due to excessive air pressure.

[0048] Reversing valve 622 can be modeled after existing cylinder reversing valves. It has two pathways: one for passing compressed gas into the first chamber and exhausting it from the second; the other for passing compressed gas into the second chamber and exhausting it from the first. A reversing controller 623 controls reversing valve 622 to switch pathways, adjusting the flow of gas into different chambers of the cylinder to achieve expansion and contraction of the cylinder shaft.

[0049] Specifically, a guide slot 42 is provided in the middle of the swing arm 4 along the length direction of the swing arm 4 , and a sliding member 43 is provided at one end of the cylinder shaft of the cylinder 61 , and the sliding member 43 is rollingly assembled in the guide slot 42 .

[0050] With the above structure, the transmission connection between the cylinder shaft and the swing arm 4 is achieved by the cooperation between the sliding member 43 and the guide slot 42. The above structure is simple and easy to install. In a specific embodiment of the present invention, the sliding member 43 is specifically a roller.

[0051] Optionally, the compressed gas pipeline 62 is further provided with a pressure gauge 624 , and the pressure gauge 624 is arranged in the pipeline between the regulating valve 621 and the reversing valve 622 .

[0052] With the above structure, the pressure can be read by the pressure gauge 624. According to the value of the pressure gauge 624, the distance between the conductive wheel 51 and the embossing roller 1 can be accurately determined, ensuring that each time the same embossing roller 1 is replaced again, the distance between the conductive wheel 51 and the embossing roller 1 remains relatively consistent, avoiding the situation where the conductive wheel 51 is too close to the wheel surface of the embossing roller 1 or the conductive wheel 51 fails to be close to the wheel surface of the embossing roller 1.

[0053] The utility model provides a calendering device, wherein both sides of the embossing roller 1 of the calendering device are respectively provided with the above-mentioned static elimination structure.

[0054] The embossing roller 1 of the calendering equipment is provided with static elimination structures on both sides, which can accelerate the elimination speed of static electricity, enhance the effect of static elimination, quickly eliminate static electricity and its influence, and achieve the purpose of improving product quality.

[0055] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to devise other specific embodiments of the present invention without inventive effort, and such equivalent variations or substitutions are encompassed within the scope of the claims of this application.

Claims

1. A static elimination structure, characterized in that: Used to eliminate static electricity of an embossing roller, comprising a fixed seat, a support arm, a swing arm, a conductive unit and a drive unit; One end of the support arm is arranged on a fixed seat, and one end of the swing arm is hinged to the other end of the support arm; the conductive unit is arranged at the other end of the swing arm; the driving end of the driving unit is transmission-connected to the swing arm, and is used to drive the swing arm to rotate with the hinge between the swing arm and the support arm as the rotation axis, and to make the conductive unit close to or away from the side wall of the embossing roller; the conductive unit is used to conduct static electricity of the embossing roller.

2. The static elimination structure according to claim 1, characterized in that: The conductive unit includes a conductive wheel, a grounding wire and a grounding body; The conductive wheel is rotatably mounted on the other end of the swing arm, one end of the grounding wire is connected to the conductive wheel, and the other end of the grounding wire is connected to a grounding body; and the grounding body is connected to the ground.

3. The static elimination structure according to claim 2, characterized in that: A rotating connecting shaft is provided at the proximal end of the other end of the swing arm, the axis of the rotating connecting shaft is parallel to the axis of the embossing roller, the conductive wheel is rotatably assembled at the proximal end of the other end of the swing arm through the rotating connecting shaft, and one end of the grounding wire is connected to the rotating connecting shaft.

4. The static elimination structure according to claim 3, characterized in that: The conductive wheel is made of red copper.

5. The static elimination structure according to claim 1, characterized in that: The drive unit includes a cylinder and a compressed gas pipeline; the cylinder is arranged on a fixed seat, and a cavity is provided in the cylinder. The piston of the cylinder divides the cavity into a first chamber and a second chamber. The first chamber is provided with a first connecting pipeline, and the second chamber is provided with a second connecting pipeline. The compressed gas pipeline is connected to an external compressed gas source; the compressed gas pipeline is sequentially provided with a regulating valve and a passage control unit, the passage control unit includes a reversing valve and a reversing controller, the reversing valve is provided at the exhaust end of the regulating valve, and the reversing valve is electrically connected to the reversing controller; the regulating valve is used to adjust the pressure of the compressed gas; the reversing valve is provided with a first air intake channel, a second air intake channel, a first exhaust channel, and a second exhaust channel; when the cylinder shaft of the cylinder is extended, the first air intake channel is connected to the first connecting pipeline, and the second exhaust channel is connected to the second connecting pipeline; when the cylinder shaft of the cylinder is retracted, the second air intake channel is connected to the second connecting pipeline, and the first exhaust channel is connected to the first connecting pipeline; The reversing controller controls the compressed gas to enter the first chamber and discharge the gas in the second chamber through the reversing valve, or controls the compressed gas to enter the second chamber and discharge the gas in the first chamber to control the cylinder shaft of the cylinder to extend or retract.

6. The static elimination structure according to claim 5, characterized in that: A guide slot is provided at the middle of the swing arm along the length direction of the swing arm, and a sliding member is provided at one end of the cylinder shaft of the cylinder. The sliding member is rollingly assembled in the guide slot.

7. The static elimination structure according to claim 5, characterized in that: The compressed gas pipeline is further provided with a pressure gauge, which is arranged in the pipeline between the regulating valve and the reversing valve.

8. A calendering device, characterized in that: Both sides of the embossing roller of the calendering equipment are respectively provided with the static elimination structure according to any one of claims 1 to 7.

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