A static elimination device for polyester film

Abstract

This utility model provides a static eliminator for polyester film, relating to the field of static eliminator technology. It includes a fixed base, with a bidirectional lead screw rotatably connected to the upper end of the fixed base via a bearing. A drive disc is fixedly connected to the upper end of the bidirectional lead screw. Symmetrically distributed threaded blocks are threaded onto the external threads of the bidirectional lead screw. A rotation adjustment mechanism is provided at the upper end of the fixed base, including a vertical rod. The lower end of the vertical rod is fixedly connected to the upper end of the fixed base. A travel groove is formed on the outer side of the vertical rod, and a movable block is slidably sleeved on the outer side of the vertical rod. A movable hole is formed on one side of the movable block, with one end of the movable hole communicating through the travel groove. Through the rotation adjustment mechanism, the antistatic cloth can be quickly and contactlessly switched and adjusted, ensuring the continuity of static eliminator operation. Furthermore, the combination of the hook and loop sides of the Velcro allows for convenient replacement of the antistatic cloth, reducing operational difficulty and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of static electricity elimination technology, and in particular to a static electricity elimination device for polyester film. Background Technology

[0002] Polyester film is a film material made from polyethylene terephthalate (PET) through extrusion to form thick sheets, which are then biaxially stretched. This material is widely used in the fiberglass industry, building materials industry, printing industry, and medical and health industry. However, during the production of existing polyester films, because they are exposed to the air, the surface is easily contaminated by static electricity during transportation, causing dust to be attracted from the environment and affecting subsequent use.

[0003] For example, a Chinese patent document discloses an electrostatic elimination device for polyester film (publication number: CN222016835U). Although this patent allows for the elimination of static electricity from polyester film by replacing components, after the first antistatic cloth is used up, a locking block can be inserted into the groove of the rotating plate. By rotating the rotating plate, the second antistatic cloth can be moved to the position of the first antistatic cloth. Releasing the locking block allows it to engage with the hole of the guide block under the elastic force of the spring, thus fixing the position of the rotating plate. The second antistatic cloth can then be used to eliminate static electricity from the polyester film again. The first antistatic cloth can then be replaced later, saving time and improving the efficiency of static elimination.

[0004] However, in actual operation, the operator needs to use a tool to push the card block out of the hole in the guide block, and at the same time drive the rotating plate to rotate at a specified angle to ensure that the card block is locked into the hole by the elastic force of the spring. This is not only difficult to operate, but also easy to contaminate the antistatic cloth when holding the rotating plate and turning it. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the cumbersome operation and potential pollution associated with switching and adjusting antistatic cloths.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electrostatic elimination device for polyester film includes a fixed base, a bidirectional lead screw rotatably connected to the upper end of the fixed base via a bearing, a drive disk fixedly connected to the upper end of the bidirectional lead screw, and symmetrically distributed threaded blocks connected to the external thread of the bidirectional lead screw. A rotation adjustment mechanism is provided at the upper end of the fixed base, and the rotation adjustment mechanism includes a vertical rod, the lower end of which is fixedly connected to the upper end of the fixed base.

[0008] The outside of the upright has a travel groove, and a moving block is slidably sleeved on the outside of the upright. A movable hole is opened on one side of the moving block. One end of the movable hole is connected through the travel groove, and a rotating rod is movably sleeved on the inner wall of the movable hole.

[0009] Preferably, one end of the rotating rod passes through the stroke groove and is rotatably connected to one side of the threaded block through a bearing, and a rotating roller is fixedly sleeved on the outside of the rotating rod.

[0010] Preferably, the rotating roller is fixedly connected to an arc-shaped hook and loop fastener surface arranged in a ring array, and a hook and loop fastener surface is movably bonded to the outer side of the arc-shaped hook and loop fastener surface, and an anti-static cloth is fixedly connected to the outer side of the hook and loop fastener surface.

[0011] Preferably, the movable block has a first locking hole that is symmetrically distributed laterally on one side, a second locking hole that is symmetrically distributed vertically on one side, and an installation through groove on the outside of the rotating rod.

[0012] Preferably, a gripping block is slidably connected to the inner wall of the mounting slot, and both ends of the gripping block extend to the outside of the rotating rod, and a guide rod is movably sleeved on the inner wall of the gripping block.

[0013] Preferably, the two ends of the guide rod are fixedly connected to the inner walls of the two sides of the mounting groove, and a support spring is fixedly connected to one side of the gripping block.

[0014] Preferably, one end of the support spring is fixedly connected to the inner wall of one side of the mounting slot, and the other side of the gripping block is fixedly connected with locking rods that are symmetrically distributed.

[0015] Preferably, one end of the locking rod is movably inserted into the inner wall of the first locking hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the rotating adjustment mechanism enables contactless and rapid switching and adjustment of the antistatic cloth, thereby ensuring the continuity of static elimination. Furthermore, the combination of the hook and loop sides of the Velcro facilitates convenient replacement of the antistatic cloth, which not only reduces the difficulty of operation but also improves work efficiency. Attached Figure Description

[0018] Figure 1 A schematic diagram of the main structure of a static elimination device for polyester film provided by this utility model;

[0019] Figure 2 Exploded view of the rotating roller structure of a static elimination device for polyester film provided by this utility model;

[0020] Figure 3 A perspective view of the moving block structure of a static elimination device for polyester film provided by this utility model;

[0021] Figure 4 A partial perspective view of the rotating rod structure of a static elimination device for polyester film provided by this utility model;

[0022] Figure 5 A perspective view of the holding block structure of a static elimination device for polyester film provided by this utility model.

[0023] Legend: 1. Fixed base; 2. Two-way lead screw; 3. Drive disc; 4. Threaded block; 5. Upright pole; 51. Stroke groove; 52. Moving block; 53. Movable hole; 54. Rotating rod; 55. Rotating roller; 56. Arc-shaped hook and loop fastener; 57. Hook and loop fastener; 58. Antistatic cloth; 59. First locking hole; 510. Second locking hole; 511. Mounting groove; 512. Grip block; 513. Guide rod; 514. Support spring; 515. Locking rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example

[0028] like Figure 1-5 As shown, this utility model provides a technical solution: a static elimination device for polyester film, including a fixed base 1. The fixed base 1 is made of heavy and stable metal material, and the bottom is equipped with an anti-slip rubber pad. The upper end of the fixed base 1 is rotatably connected to a bidirectional lead screw 2 through a high-precision bearing. The bidirectional lead screw 2 is made of tough and non-deformable alloy steel, and has been finely ground to have a smooth surface. The pitch and tooth profile of the threaded part are extremely accurate to ensure precise and smooth transmission with the threaded block 4. The upper end of the bidirectional lead screw 2 is fixedly connected to a drive disk 3, which facilitates the operator to apply force to rotate it. The external screw of the bidirectional lead screw 2... The threaded connection has symmetrically distributed threaded blocks 4, which are also made of high-strength metal. The internal threaded holes are tightly engaged with the threads of the bidirectional lead screw 2, allowing it to move quickly and smoothly along the lead screw when it rotates, without any jamming or shaking. The upper end of the fixed base 1 is carefully equipped with a rotation adjustment mechanism, which acts like a flexible joint of the device, controlling the precise adjustment of the antistatic cloth 58. The key component of the rotation adjustment mechanism, the upright rod 5, is fixedly connected to the upper end of the fixed base 1 by a strong welding process. The upright rod 5 is made of straight and rigid metal tubing to ensure that it will not bend or deform when subjected to various external forces.

[0029] The outside of the upright 5 is provided with a travel groove 51. The inner wall of the travel groove 51 is straight and smooth, providing precise guidance for the sliding of the moving block 52. The moving block 52 is slidably sleeved on the outside of the upright 5. The moving block 52 is made of lightweight but strong aluminum alloy. It has a compact shape and a very small tolerance with the upright 5. It can slide freely and smoothly on the upright 5 without producing excessive shaking. A movable hole 53 is provided on one side of the moving block 52. One end of the movable hole 53 is connected to the travel groove 51. The inner wall of the movable hole 53 is finely machined, and the roundness and roughness are controlled within a very small range to ensure that the rotating rod 54 can rotate flexibly and freely in it.

[0030] One end of the rotating rod 54 passes through the stroke groove 51 and is rotatably connected to one side of the threaded block 4 through a high-precision bearing. The bearing is selected with full consideration of load-bearing capacity and rotational flexibility to ensure that the rotating rod 54 and the threaded block 4 can be stably connected and can rotate smoothly around the axis when the threaded block 4 moves. A rotating roller 55 is fixedly sleeved on the outside of the rotating rod 54. The rotating roller 55 is made of engineering plastic material with smooth surface and good wear resistance. Its axis is strictly coincident with the axis of the rotating rod 54, so there will be no eccentricity during rotation, ensuring that the antistatic cloth 58 is evenly stressed.

[0031] The rotating roller 55 is externally fixedly connected to an arc-shaped hook and loop fastener surface 56 arranged in a ring array. The arc-shaped hook and loop fastener surface 56 is made of strong hook and loop fastener material. The hooks on the surface are regularly shaped and tightly arranged, which can tightly engage with the hook and loop fastener surface 57 to ensure that the antistatic cloth 58 will not fall off accidentally during use. The outer side of the arc-shaped hook and loop fastener surface 56 is movably bonded with the hook and loop fastener surface 57. The fibers of the hook and loop fastener surface 57 are soft and dense, and the adhesion with the hook surface is extremely high, which can effectively transmit the static elimination function of the antistatic cloth 58. The outer side of the hook and loop fastener surface 57 is fixedly connected to the antistatic cloth 58. The antistatic cloth 58 is made of special fiber fabric with good conductivity. Its surface is flat and smooth, which can maximize the contact with the polyester film surface and efficiently eliminate static electricity.

[0032] The movable block 52 has a first locking hole 59 that is symmetrically distributed laterally on one side. The diameter tolerance of the first locking hole 59 is strictly controlled to ensure that the locking rod 515 fits tightly after insertion and there will be no loosening. The movable block 52 has a second locking hole 510 that is symmetrically distributed vertically on one side. The second locking hole 510 is perpendicular to the first locking hole 59 and provides precise positioning for locking the rotating rod 54 at different angles. The rotating rod 54 has an installation groove 511 on its outer side. The inner wall of the installation groove 511 is smooth and flat, providing good conditions for the sliding of the gripping block 512.

[0033] A gripping block 512 is slidably connected to the inner wall of the mounting slot 511. The gripping block 512 is made of ergonomically designed rubber material with an anti-slip texture on the surface, making it easy for operators to grip and apply force. Its shape and size are perfectly matched with the mounting slot 511, allowing it to slide freely in the slot. Both ends of the gripping block 512 extend to the outside of the rotating rod 54 for easy operation. A guide rod 513 is movably sleeved on the inner wall of the gripping block 512. The guide rod 513 is made of straight stainless steel with a smooth surface, providing precise guidance for the sliding of the gripping block 512 and ensuring that it does not deviate from the track during the sliding process.

[0034] The two ends of the guide rod 513 are fixedly connected to the inner walls of the two sides of the mounting slot 511 by a strong welding process to form a stable support structure. A support spring 514 is fixedly connected to one side of the gripping block 512. The support spring 514 is made of high-quality spring steel with a spring coefficient that has been rigorously tested. It undergoes a fine heat treatment process to ensure stable and long-lasting elasticity and provide reliable power for the resetting of the gripping block 512.

[0035] One end of the support spring 514 is fixedly connected to the inner wall of the mounting slot 511 by a reliable riveting method to ensure a firm connection. The other side of the grip block 512 is fixedly connected with symmetrically distributed locking rods 515. The locking rods 515 are made of high-strength plastic material and their shape is precisely matched with the first locking hole 59 and the second locking hole 510 to ensure a tight fit after insertion and effectively lock the position of the rotating rod 54.

[0036] One end of the locking rod 515 is movably inserted into the inner wall of the first locking hole 59, and the first locking hole 59 serves to lock and limit the locking rod 515.

[0037] The working process of this utility model:

[0038] Step 1: Based on the thickness of the polyester film, the bidirectional lead screw 2 can be rotated by the drive disk 3. The rotation of the bidirectional lead screw 2 causes its two threaded blocks 4 to move relative to each other, thereby driving the two opposite antistatic cloths 58 to move closer and adjust. Conversely, the drive disk 3 can be rotated in the opposite direction to drive the two antistatic cloths 58 to move in opposite directions.

[0039] Step 2: When it is necessary to switch the antistatic cloth 58, pull the grip rod to move it, so that its locking rod 515 disengages from the first locking hole 59. When the grip rod moves, it is guided by the guide rod 513 and squeezes the support spring 514. Then, the grip rod drives the rotating rod 54 to rotate 90 degrees. The rotation of the rotating rod 54 drives the antistatic cloth 58 to rotate and switch through the rotating roller 55. Then, release the grip rod, and the elastic force of the support spring 514 causes the locking rod 515 to insert into the corresponding second locking hole 510. At this time, the antistatic cloth 58 on the rotating roller 55 is limited and locked.

[0040] Step 3: When the antistatic cloth 58 on the rotating roller 55 needs to be replaced, the operator can peel the old antistatic cloth 58 along with the hook and loop fastener 57 from the curved hook and loop fastener hook surface 56, and then quickly attach the new antistatic cloth 58 to the curved hook and loop fastener hook surface 56 through the hook and loop fastener 57. The operation is convenient.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electrostatic eliminator for polyester film comprising a fixed base (1), characterized in that: The upper end of the fixed base (1) is rotatably connected to a bidirectional lead screw (2) via a bearing. The upper end of the bidirectional lead screw (2) is fixedly connected to a drive disk (3). The external thread of the bidirectional lead screw (2) is connected to symmetrically distributed threaded blocks (4). The upper end of the fixed base (1) is provided with a rotation adjustment mechanism, and the rotation adjustment mechanism includes a vertical rod (5). The lower end of the vertical rod (5) is fixedly connected to the upper end of the fixed base (1). The outside of the upright (5) is provided with a travel groove (51), and a moving block (52) is slidably sleeved on the outside of the upright (5). A movable hole (53) is provided on one side of the moving block (52). One end of the movable hole (53) is connected through the travel groove (51), and a rotating rod (54) is movably sleeved on the inner wall of the movable hole (53).

2. The static electricity eliminating device for a polyester film according to claim 1, characterized by: One end of the rotating rod (54) passes through the stroke groove (51) and is rotatably connected to one side of the threaded block (4) through a bearing. A rotating roller (55) is fixedly sleeved on the outside of the rotating rod (54).

3. An electrostatic eliminator for a polyester film according to claim 2, wherein: The rotating roller (55) is fixedly connected to an arc-shaped hook and loop fastener (56) arranged in a ring array. A hook and loop fastener (57) is movably bonded to the outside of the arc-shaped hook and loop fastener (56). An antistatic cloth (58) is fixedly connected to the outside of the hook and loop fastener (57).

4. The static electricity eliminating device for a polyester film according to claim 1, characterized by: The moving block (52) has a first locking hole (59) that is symmetrically distributed laterally on one side, and a second locking hole (510) that is symmetrically distributed vertically on one side. The rotating rod (54) has an installation through groove (511) on its outside.

5. The static electricity eliminating device for a polyester film according to claim 4, characterized by: The inner wall of the mounting slot (511) is slidably connected to a gripping block (512), and the two ends of the gripping block (512) extend to the outside of the rotating rod (54). The inner wall of the gripping block (512) is movably sleeved with a guide rod (513).

6. The static electricity eliminating device for a polyester film according to claim 5, wherein: The two ends of the guide rod (513) are fixedly connected to the inner walls of the two sides of the mounting slot (511), and a support spring (514) is fixedly connected to one side of the gripping block (512).

7. An electrostatic eliminator for polyester film according to claim 6, wherein: One end of the support spring (514) is fixedly connected to the inner wall of one side of the mounting slot (511), and the other side of the grip block (512) is fixedly connected to locking rods (515) that are symmetrically distributed.

8. The static electricity eliminating device for a polyester film according to claim 7, wherein: One end of the locking rod (515) is movably inserted into the inner wall of the first locking hole (59).

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