Two-traction exhaust wrinkle prevention device
By designing the exhaust anti-pleasure mechanism and tightening mechanism in the second traction system of the film blowing machine, the wrinkle problem caused by air leakage during the traction process is solved, and the flatness and quality of the film are improved during winding.
Patent Information
- Application Number
- CN202422140259.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-31
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-31
AI Technical Summary
Because the film is thin, the traction roller on the traction machine may have a slight air leakage during traction, resulting in bubbles forming before the second traction pinch, which accumulates in front of the second traction pinch, causing the film to deform and wrinkle.
A two-traction exhaust pleat prevention device is designed, including providing an exhaust pleat prevention mechanism and a tightening mechanism on the traction frame. When the film passes through the exhaust anti-pleasure mechanism, the mechanism pulls the two sides of the film, squeezes the bubbles in the middle, and adjusts the tightness of the film through the tightening mechanism to reduce the appearance of wrinkles and bubbles.
It effectively reduces bubbles and wrinkles during the film rolling, ensuring the flatness and quality of the film.
Smart Images
Figure CN222959192U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of film production, and in particular to a two-traction exhaust wrinkle prevention device. Background Art
[0002] Film blowing machine refers to the equipment that heats and melts plastic particles and then blows them into film. The working process is to add dry polyethylene particles into the lower hopper, and the particles enter the screw from the hopper by their own weight. When the particles come into contact with the bevel of the thread, the rotating bevel surface produces a thrust perpendicular to the bevel surface on the plastic, pushing the plastic particles forward. During the pushing process, due to the friction between the plastic and the screw, the plastic and the barrel, and the collision and friction between the particles, and also due to the external heating of the barrel, the molten plastic is filtered through the machine head to remove impurities and comes out from the die head. After air circulation cooling, blowing, passing through the herringbone plate, and the traction roller on the traction frame, the finished film is rolled into a tube.
[0003] After the film is formed, the traction roller on the traction frame is used to traction the film. The main purpose is to change the convenience of the film and make it easier to roll the film on the winding roller. In order to reduce the cost of the film when rolling, generally, another traction is added in front of the winding roller, which is called the second traction. The purpose is to make the film more stable when rolling.
[0004] The film blowing machine produces thinner film products. Due to the thin film, the traction roller on the traction machine may have slight air leakage during traction. After a long time, bubbles are formed before the second traction and accumulated in front of the second traction clamping roller, causing the film to deform and wrinkle. Utility Model Content
[0005] The purpose of the present application is to solve the problem raised in the above-mentioned background technology that due to the thin film, the traction roller on the traction machine has slight air leakage during traction, and after a long time, bubbles are formed before the second traction, and accumulate in front of the second traction clamping rollers, causing the film to deform and wrinkle. The present application provides a second traction exhaust to prevent wrinkles.
[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:
[0007] The double-traction exhaust and wrinkle prevention device comprises a film blowing machine body, a traction frame is arranged on the film blowing machine body, two symmetrical double-traction support plates are arranged on one side of the traction frame, a winding roller is rotatably connected between the two double-traction support plates, a winding motor is arranged between the two double-traction support plates, the winding motor is transmission-connected to the winding roller, an exhaust and wrinkle prevention mechanism is arranged between the two double-traction support plates, and a tensioning mechanism (7) is arranged between the two double-traction support plates.
[0008] By adopting the above technical solution, the film passes through the exhaust anti-wrinkle mechanism between the two second-pull support plates, then passes through the tensioning mechanism between the two second-pull support plates, and is finally connected to the winding roller. When the winding roller winds up the film, when the film passes through the exhaust anti-wrinkle mechanism, the exhaust anti-wrinkle mechanism pulls the two sides of the film and squeezes the bubbles that may be contained in the middle of the film, so that the two sides of the film can be pulled and the bubbles in the film can be squeezed out, thereby reducing the occurrence of wrinkles and bubbles in the film when the film is rolled up.
[0009] Furthermore, the exhaust anti-wrinkle mechanism includes two support blocks symmetrically arranged between two two-pull support plates, the two support blocks are fixedly connected to the corresponding two-pull support plates, an expansion roller is rotatably connected between the two support blocks, two threaded rubber strips are fixedly connected to the expansion roller, the two threaded rubber strips are facing opposite directions, and a resistance component is provided on one side of the expansion roller.
[0010] By adopting the above technical solution, the resistance component will resist the film against the expansion roller. When the winding roller winds up the film, the film drives the expansion roller, and the threaded rubber strip on the expansion roller squeezes and pulls the film, thereby reducing the bubbles in the film when the film is wound up, and reducing the possibility of wrinkles in the film when it is wound up.
[0011] Furthermore, the resistance component includes a resistance roller arranged between two support blocks, both ends of the resistance roller are rotatably connected with sliding blocks, and sliding grooves are opened on the two support blocks. The sliding blocks are located in the sliding grooves and are slidably connected to the support blocks.
[0012] By adopting the above technical solution, the film is placed between the expansion roller and the resistance roller, and the sliding block is moved in the sliding groove to allow the resistance roller to move, thereby making it convenient for the film to pass between the expansion roller and the resistance roller.
[0013] Furthermore, a resistance spring is arranged in the sliding groove, and both ends of the resistance spring are fixedly connected to the supporting block and the sliding block.
[0014] By adopting the above technical solution, the resistance spring pushes the sliding block, and the sliding block drives the resistance roller to approach the expansion roller, so that the resistance roller can easily drive the film to approach the expansion roller.
[0015] Furthermore, the threaded rubber strip has a width of 10 mm to 15 mm, and a Durometer hardness of 60-70.
[0016] By adopting the above technical solution, the width and hardness of the threaded rubber strip are limited, so that there can be sufficient contact between the threaded rubber strip and the film, while reducing the possibility of damaging the film.
[0017] Furthermore, the thickness of the threaded rubber strip ranges from 15um to 20um.
[0018] By adopting the above technical solution, the thickness range of the threaded rubber strip is limited, thereby reducing the possibility of damaging the film when the threaded rubber strip contacts the film.
[0019] Furthermore, the tensioning mechanism includes a tensioning roller arranged between two second pulling support plates, both ends of the two tensioning rollers are rotatably connected with adjustment blocks, the two second pulling support plates are provided with adjustment slots, the adjustment blocks are located in the adjustment slots and are slidably connected to the two pulling support plates, one of the two pulling support plates is provided with an adjustment component, and a limiting roller is rotatably connected between the two support blocks.
[0020] By adopting the above technical solution, the adjustment component drives the tension roller to move, and the position of the tension roller is away from the winding roller, so that the tightness of the film when winding can be easily adjusted, reducing the impact of too loose or too tight on the winding of the film.
[0021] Furthermore, the adjustment assembly includes two adjustment support plates symmetrically fixed on the two pulling support plates, the two adjustment support plates are located at both ends of the adjustment slot, an adjustment threaded rod is rotatably connected between the two adjustment plates, a threaded block is threadedly connected to the adjustment threaded rod, and the threaded block is fixedly connected to the adjustment block.
[0022] By adopting the above technical solution, the adjusting threaded rod is rotated to allow the adjusting threaded rod to drive the threaded block to move, thereby making it convenient to adjust the position of the tensioning roller.
[0023] In summary, the present application includes at least one of the following beneficial effects:
[0024] 1. In the present application, after the film is pulled out from the traction frame, the film is allowed to pass between the expansion roller and the resistance roller, and then the resistance spring pushes the sliding block, the sliding block drives the resistance roller toward the expansion roller, the resistance roller squeezes the film, the film is resisted on the expansion roller, the threaded rubber strip on the expansion roller is resisted with the film, and when the winding roller winds up the film, the film moves between the expansion roller and the resistance roller, the film drives the expansion roller and the resistance roller to rotate, when the expansion roller rotates, the threaded rubber strip follows the rotation, and then the threaded rubber strip squeezes and pulls the film, so that the bubbles in the film are squeezed to both sides, and then the film is wound on the winding roller, thereby achieving the purpose of reducing the bubbles in the film when the film is wound, and reducing the possibility of wrinkles in the film when it is wound.
[0025] 2. In the present application, after passing the film between the expansion roller and the resistance roller, the film is then passed through the side of the limiting roller away from the winding roller, and then passed from under the tensioning roller, and finally fixed on the winding roller, and the film is wound up by the winding roller. During the winding process, when the film is too tight or too loose, the adjusting threaded rod is directly rotated to rotate the adjusting threaded rod on the adjusting support plate, and the threaded block drives the adjusting block to move in the adjusting groove, and the adjusting block drives the tensioning roller to change the distance of the film between the tensioning roller and the winding roller, and adjust the tightness of the film, thereby achieving the purpose of being able to conveniently adjust the tightness of the film when winding and reduce the effect of too loose or too tight on the winding of the film. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a first three-dimensional structural schematic diagram of the exhaust wrinkle prevention device in the present application;
[0027] Figure 2 It is a second three-dimensional structural schematic diagram of the exhaust wrinkle prevention device in the present application;
[0028] Figure 3 This application Figure 2 Enlarged schematic diagram at point A in the middle.
[0029] Description of reference numerals:
[0030] 1. Film blowing machine body; 2. Traction frame; 3. Second traction support plate; 4. Winding roller; 5. Winding motor; 6. Exhaust and anti-wrinkle mechanism; 61. Expansion roller; 62. Threaded rubber strip; 63. Support block; 64. Resistance assembly; 641. Resistance roller; 642. Sliding block; 643. Sliding groove; 644. Resistance spring; 7. Tensioning mechanism; 71. Tensioning roller; 72. Adjustment block; 73. Adjustment groove; 74. Adjustment assembly; 741. Adjustment threaded rod; 742. Threaded block; 743. Adjustment support plate; 75. Limiting roller. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1 —3 Provide further details of this application.
[0032] The embodiment of the present application discloses two traction exhaust wrinkle prevention devices.
[0033] Reference Figure 1 , Figure 2 and Figure 3The two-traction exhaust and wrinkle prevention device comprises a film blowing machine body 1, a traction frame 2 is arranged on the film blowing machine body 1, two symmetrical two-traction support plates 3 are arranged on one side of the traction frame 2, a winding roller 4 is rotatably connected between the two two-traction support plates 3, a winding motor 5 is arranged between the two two-traction support plates 3, the winding motor 5 is transmission-connected to the winding roller 4, an exhaust and wrinkle prevention mechanism 6 is arranged between the two two-traction support plates 3, and a tensioning mechanism 7 is arranged between the two two-traction support plates 3.
[0034] When the film blowing machine body 1 is used for film blowing production, the film is blown out from the film blowing machine body 1, and then the blown film is pulled by the pulling frame 2, and then the film is passed through the exhaust anti-wrinkle mechanism 6 between the two pulling support plates 3, and then through the tensioning mechanism 7 between the two pulling support plates 3, and finally connected to the winding roller 4. When the winding roller 4 is winding the film, when the film passes through the exhaust anti-wrinkle mechanism 6, the exhaust anti-wrinkle mechanism 6 pulls the two sides of the film and squeezes the bubbles that may be contained in the middle of the film. Then, when the winding roller 4 is winding the film, when the film becomes loose, the tensioning mechanism 7 is used to adjust the length of the film being wound, so that the film is kept tight when winding. By allowing the film being wound to pass through the exhaust anti-wrinkle mechanism 6 before winding the film, the two sides of the film can be pulled and the bubbles in the film can be squeezed out, thereby reducing the wrinkles and bubbles in the film when winding.
[0035] Reference Figure 1 , Figure 2 and Figure 3 The exhaust anti-wrinkle mechanism 6 includes two support blocks 63 symmetrically arranged between the two second-pull support plates 3. The two support blocks 63 are fixedly connected to the corresponding second-pull support plates 3. An expansion roller 61 is rotatably connected between the two support blocks 63. Two threaded rubber strips 62 are fixedly connected to the expansion roller 61. The two threaded rubber strips 62 face opposite directions. A resistance component 64 is arranged on one side of the expansion roller 61.
[0036] In addition, the resistance component 64 includes a resistance roller 641 arranged between the two support blocks 63, and both ends of the resistance roller 641 are rotatably connected with sliding blocks 642. The two support blocks 63 are each provided with a sliding groove 643. The sliding block 642 is located in the sliding groove 643 and is slidably connected to the support block 63.
[0037] In addition, a resisting spring 644 is disposed in the sliding groove 643 , and both ends of the resisting spring 644 are fixedly connected to the supporting block 63 and the sliding block 642 .
[0038] After the film is pulled out from the traction frame 2, let the film pass between the expansion roller 61 and the contact roller 641. Then, the contact spring 644 pushes the sliding block 642, and the sliding block 642 drives the contact roller 641 to approach the expansion roller 61. The contact roller 641 squeezes the film, making the film contact the expansion roller 61, and making the threaded rubber strip 62 on the expansion roller 61 contact the film. When the winding roller 4 winds the film, the film moves between the expansion roller 61 and the contact roller 641, driving the expansion roller 61 and the contact roller 641 to rotate. When the expansion roller 61 rotates, the threaded rubber strip 62 rotates accordingly, and then the threaded rubber strip 62 squeezes and pulls the film, squeezing the air bubbles in the film to both sides. Then the film is wound on the winding roller 4. When using the winding roller 4 to wind the film, by squeezing the film with the contact roller 641 and the expansion roller 61, and then pulling the film with the threaded rubber strip 62, it is possible to reduce the air bubbles in the film during winding and reduce the possibility of wrinkles in the film during winding.
[0039] Refer to Figure 1 、 Figure 2 and Figure 3 The width of the threaded rubber strip 62 is 10 mm to 15 mm, and the Shore hardness of the threaded rubber strip 62 is 60 - 70.
[0040] In addition, the thickness range of the threaded rubber strip 62 is 15 μm to 20 μm.
[0041] When fixing the threaded rubber strip 62 on the expansion roller 61, use a high-temperature resistant glue for fixing, and adhere at a 45-degree angle to both sides along the rotation direction of the guide roller. The best width of the rubber strip is 10 mm to 15 mm. The rubber strip should not be too soft or too hard, and the Shore hardness of 60 - 70 is the best. The thickness range of 15 μm to 20 μm is appropriate. By limiting the width, angle, thickness, and hardness of the threaded rubber strip 62, it is possible to reduce the possibility of damaging the film when the threaded rubber strip 62 contacts the film, and at the same time, the pulling and squeezing effects can be the best.
[0042] Refer to Figure 1 、 Figure 2 and Figure 3 The tensioning mechanism 7 includes a tensioning roller 71 arranged between two second-traction support plates 3. Both ends of the two tensioning rollers 71 are rotatably connected with adjusting blocks 72. Adjusting grooves 73 are opened on both second-traction support plates 3. The adjusting blocks 72 are located in the adjusting grooves 73 and are slidably connected with the second-traction support plates 3. An adjusting component 74 is arranged on one of the second-traction support plates 3. A limiting roller 75 is rotatably connected between the two support blocks 63.
[0043] In addition, the adjusting assembly 74 includes two adjusting support plates 743 symmetrically fixed on the second traction support plate 3. The two adjusting support plates 743 are located at both ends of the adjusting groove 73. An adjusting threaded rod 741 is rotatably connected between the two adjusting plates. A threaded block 742 is threadedly connected to the adjusting threaded rod 741, and the threaded block 742 is fixedly connected to the adjusting block 72.
[0044] After passing the film between the expanding roller 61 and the abutting roller 641, then pass the film through the side of the limiting roller 75 away from the winding roller 4, then pass it under the tensioning roller 71, and finally fix it on the winding roller 4. The winding roller 4 winds the film. During the winding process, when the film is too tight or too loose, directly rotate the adjusting threaded rod 741 to make the adjusting threaded rod 741 rotate on the adjusting support plate 743, so that the threaded block 742 drives the adjusting block 72 to move in the adjusting groove 73. The adjusting block 72 drives the tensioning roller 71 to change the distance between the tensioning roller 71 and the winding roller 4, adjusting the tightness of the film. By changing the position of the tensioning roller 71, the tensioning roller 71 drives the film to move, so as to conveniently adjust the tightness of the film during winding and reduce the influence of being too loose or too tight on the winding of the film.
[0045] Working principle: When using the blown film machine body 1 for blown film production, the film is blown out from the blown film machine body 1, and then the traction frame 2 is used to traction the blown film. After pulling the film out of the traction frame 2, let the film pass between the expanding roller 61 and the abutting roller 641. Then the abutting spring 644 pushes the sliding block 642, and the sliding block 642 drives the abutting roller 641 to approach the expanding roller 61. The abutting roller 641 presses the film, making the film abut against the expanding roller 61, and making the threaded rubber strip 62 on the expanding roller 61 abut against the film. Then pass the film through the side of the limiting roller 75 away from the winding roller 4, then pass it under the tensioning roller 71, and finally fix it on the winding roller 4. When the winding roller 4 winds the film, the film moves between the expanding roller 61 and the abutting roller 641, and the film drives the expanding roller 61 and the abutting roller 641 to rotate. When the expanding roller 61 rotates, the threaded rubber strip 62 rotates accordingly, and then the threaded rubber strip 62 squeezes and pulls the film, squeezing the air bubbles in the film to both sides, and then the film is wound on the winding roller 4. During the winding process, when the film is too tight or too loose, directly rotate the adjusting threaded rod 741 to make the adjusting threaded rod 741 rotate on the adjusting support plate 743, so that the threaded block 742 drives the adjusting block 72 to move in the adjusting groove 73. The adjusting block 72 drives the tensioning roller 71 to change the distance between the tensioning roller 71 and the winding roller 4, adjusting the tightness of the film.
Claims
1. A second traction exhaust wrinkle prevention device, comprising a film blowing machine body (1), characterized in that: The film blowing machine body (1) is provided with a traction frame (2), one side of the traction frame (2) is provided with two symmetrical two-traction support plates (3), a winding roller (4) is rotatably connected between the two two-traction support plates (3), a winding motor (5) is provided between the two two-traction support plates (3), the winding motor (5) is transmission-connected to the winding roller (4), an exhaust and wrinkle-proof mechanism (6) is provided between the two two-traction support plates (3), and a tensioning mechanism (7) is provided between the two two-traction support plates (3).
2. The dual-traction exhaust wrinkle prevention device according to claim 1, characterized in that: The exhaust anti-wrinkle mechanism (6) comprises two support blocks (63) symmetrically arranged between two second-pull support plates (3), the two support blocks (63) being fixedly connected to the corresponding second-pull support plates (3), an expansion roller (61) being rotatably connected between the two support blocks (63), two threaded rubber strips (62) being fixedly connected to the expansion roller (61), the two threaded rubber strips (62) facing opposite directions, and a resistance component (64) being arranged on one side of the expansion roller (61).
3. The dual-traction exhaust wrinkle prevention device according to claim 2, characterized in that: The abutment assembly (64) comprises an abutment roller (641) arranged between two support blocks (63); both ends of the abutment roller (641) are rotatably connected to sliding blocks (642); sliding grooves (643) are provided on the two support blocks (63); the sliding blocks (642) are located in the sliding grooves (643) and are slidably connected to the support blocks (63).
4. The dual-traction exhaust wrinkle prevention device according to claim 3, characterized in that: A resistance spring (644) is arranged in the sliding groove (643), and both ends of the resistance spring (644) are fixedly connected to the support block (63) and the sliding block (642).
5. The dual-traction exhaust wrinkle prevention device according to claim 2, characterized in that: The threaded rubber strip (62) has a width of 10 mm to 15 mm, and a Durometer hardness of 60-70.
6. The dual-traction exhaust wrinkle prevention device according to claim 5, characterized in that: The threaded rubber strip (62) has a thickness ranging from 15 um to 20 um.
7. The dual-traction exhaust wrinkle prevention device according to claim 2, characterized in that: The tensioning mechanism (7) comprises a tensioning roller (71) arranged between two second-tension support plates (3), both ends of the two tensioning rollers (71) are rotatably connected to adjustment blocks (72), the two second-tension support plates (3) are provided with adjustment slots (73), the adjustment blocks (72) are located in the adjustment slots (73) and are slidably connected to the second-tension support plates (3), one of the second-tension support plates (3) is provided with an adjustment component (74), and a limit roller (75) is rotatably connected between the two support blocks (63).
8. The dual-traction exhaust wrinkle prevention device according to claim 7, characterized in that: The adjustment assembly (74) comprises two adjustment support plates (743) symmetrically fixed on the two pulling support plates (3); the two adjustment support plates (743) are located at two ends of the adjustment slot (73); an adjustment threaded rod (741) is rotatably connected between the two adjustment support plates; a threaded block (742) is threadedly connected to the adjustment threaded rod (741); and the threaded block (742) is fixedly connected to the adjustment block (72).