Transverse drawing device for polyester film
By designing a polyester film transverse pulling device including gears, tooth plates, tracks, moving sleeves, connecting rods and stretching plates, the problem of easy disengagement of the film during stretching is solved, and the film is stable and efficiently stretched.
Patent Information
- Application Number
- CN202420775061.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-04-15
AI Technical Summary
The existing polyester film transverse pulling device can easily cause the film to detach from the clamping device during the film stretching process, affecting the efficiency and accuracy of the stretching work.
A stretching component including gears, tooth plates, tracks, movable sleeves, connecting rods and tensile plates is designed. Through the cooperation of gears and driving motors, the reciprocating movement of the tooth plates is realized, driving the connecting rods and movable sleeves to slide, and the tensile plates are deployed to both sides to ensure the stable stretching of the film.
It effectively prevents the film from falling off during transverse stretching, improves the stability and efficiency of tensile work, and is suitable for films of different thicknesses for fixing and tensile testing.
Smart Images
Figure CN222882433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film production, in particular to a polyester film horizontal pulling device. Background Art
[0002] Polyester film is a packaging film with relatively comprehensive properties. It has good transparency, gloss, good air tightness and fragrance retention. Its moisture permeability decreases at low temperatures. Polyester film has excellent mechanical properties, and its toughness is the best among all thermoplastics. Its tensile strength and impact strength are much higher than those of ordinary films. It has good strength and stable dimensions. It is suitable for secondary processing such as printing and paper bags. Polyester film also has excellent heat resistance, cold resistance, good chemical resistance and oil resistance.
[0003] In order to ensure that the polyester film has good mechanical properties, optical properties, barrier properties, etc. when used, the sample film is often subjected to a stretching test when the polyester film is officially produced, so as to inspect the performance of the film. When the film is subjected to a stretching test, the film is first clamped by a clamping device, and then stretched. This operation is convenient, but the thickness of the film will continue to decrease and become thinner when it is stretched. When the film is stretched to a value smaller than the clamping spacing of the clamping device, the film is likely to detach from the clamping device, which greatly affects the stretching work of the film and is inconvenient to use.
[0004] Therefore, it is particularly important to improve the existing polyester film horizontal pulling device and design a new polyester film horizontal pulling device to solve the above-mentioned technical defects and improve the practicability of the overall polyester film horizontal pulling device. Utility Model Content
[0005] The utility model aims to provide a polyester film horizontal pulling device to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A polyester film horizontal stretching device comprises a frame, a control box is installed on the left side of the frame, a fixing plate is installed between the frames, and a stretching assembly is installed on the top of the fixing plate;
[0008] The stretching component is used for transversely stretching the polyester film.
[0009] As a preferred solution of the utility model, the stretching assembly includes a gear, a tooth plate, a track, a movable sleeve, a connecting rod and a stretching plate, the gear is installed on the top of the fixed plate, the tooth plate is symmetrically installed on the front and rear sides of the gear, the track is installed on the outside of the tooth plate, the movable sleeve is installed on the outside of the track, the connecting rod is installed between the tooth plate and the movable sleeve, and the stretching plate is installed on the front side of the movable sleeve.
[0010] As a preferred solution of the utility model, a sliding frame is installed outside the tooth plate, a groove is opened on the top of the sliding frame, and one end of the connecting rod is connected to the tooth plate through the groove.
[0011] As a preferred solution of the utility model, a connecting rod is installed between the movable sleeve and the stretching plate, the movable sleeve is connected to the stretching plate through the connecting rod, fixed seats are installed on the left and right ends of the top of the fixed plate, a sliding rod is installed inside the fixed seat, and the sliding rod extends to the inside of the stretching plate.
[0012] As a preferred solution of the utility model, baffles are installed at the front and rear ends of the top of the fixed plate, a U-shaped plate is installed on the top of the stretching plate, and the first and second serrated plates are respectively installed at the top and bottom ends of the inner side of the U-shaped plate.
[0013] As a preferred solution of the utility model, a screw rod is installed on the top of the U-shaped plate, and support rods are symmetrically installed outside the screw rod, and the screw rod and the support rod both extend to the inside of the first serrated plate.
[0014] As a preferred solution of the utility model, an I-shaped groove is provided on the outside of the second serrated plate, a clamping plate is installed at a position inside the U-shaped plate corresponding to the I-shaped groove, and a spring is installed at the bottom of the second serrated plate.
[0015] Compared with the prior art, the beneficial effects of the utility model are:
[0016] In the utility model, by placing the two ends of the film inside the U-shaped plate, the friction force at the two ends of the film is increased by the design of the first sawtooth plate and the second sawtooth plate, so that the film is effectively prevented from falling off during transverse stretching. By rotating the screw rod, the first sawtooth plate and the screw rod are threaded, so that the first sawtooth plate performs a rotation and descending movement. The first sawtooth plate is fixed and limited by the support rod, so that the first sawtooth plate is adjustable, so that films of different thicknesses can be fixed. When the polyester film is stretched, due to the continuous thinning of the thickness, the second sawtooth plate always has the force to fit the first sawtooth plate upward through the expansion and contraction energy storage of the spring. By connecting the inside of the gear with the driving motor, the gear is rotated, so that the gear and the tooth plate are meshed, so that the tooth plate performs reciprocating motion on the outside of the gear, so that the connecting rod moves with the tooth plate, so as to drive the moving sleeve to slide on the outside of the track, and finally drive the stretching plate to expand to both sides. At the same time, through the design of the sliding rod, the stability of the stretching plate is greatly improved when the stretching plate moves away from and close to each other, so as to perform a transverse pulling test on the film. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the stretching assembly of the utility model;
[0019] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;
[0020] Figure 4 It is a schematic diagram of the internal structure of the U-shaped plate of the utility model.
[0021] In the figure: 1. frame; 2. control box; 3. fixed plate; 4. stretching assembly; 401. gear; 402. tooth plate; 403. track; 404. movable sleeve; 405. connecting rod; 406. stretching plate; 407. sliding frame; 408. groove; 409. sliding rod; 5. baffle; 6. U-shaped plate; 7. first serrated plate; 701. second serrated plate; 8. screw rod; 9. support rod; 10. I-shaped groove; 11. clamping plate; 12. spring. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0023] Example:
[0024] See also Figure 1-Figure 4 , the utility model provides a technical solution:
[0025] A polyester film horizontal stretching device comprises a frame 1, a control box 2 is installed on the left side of the frame 1, a fixing plate 3 is installed between the frames 1, and a stretching component 4 is installed on the top of the fixing plate 3;
[0026] The stretching assembly 4 is used to stretch the polyester film in the transverse direction.
[0027] For further information, see Figure 1 , Figure 2 and Figure 3In this embodiment, the stretching assembly 4 includes a gear 401, a tooth plate 402, a track 403, a movable sleeve 404, a connecting rod 405 and a stretching plate 406. The gear 401 is mounted on the top of the fixed plate 3, the tooth plate 402 is symmetrically mounted on the front and rear sides of the gear 401, the track 403 is mounted on the outside of the tooth plate 402, the movable sleeve 404 is mounted on the outside of the track 403, the connecting rod 405 is mounted between the tooth plate 402 and the movable sleeve 404, and the stretching plate 406 is mounted on the front side of the movable sleeve 404. In the production process of polyester film, it is ensured that it has good When the polyester film needs to be stretched, the two ends of the polyester film are placed outside the stretching plate 406, and the inside of the gear 401 is connected to the driving motor to rotate the gear 401, so that the gear 401 is meshed with the tooth plate 402, so that the tooth plate 402 can reciprocate outside the gear 401, so that the connecting rod 405 moves with the tooth plate 402, thereby driving the movable sleeve 404 to slide outside the track 403, and finally driving the stretching plate 406 to unfold to both sides, so as to perform a horizontal pulling test on the film.
[0028] Among them, see Figure 1 , Figure 2 and Figure 3 In this embodiment, a sliding frame 407 is installed on the outside of the tooth plate 402, and a groove 408 is opened on the top of the sliding frame 407. One end of the connecting rod 405 is connected to the tooth plate 402 through the groove 408. The tooth plate 402 is limited by the sliding frame 407, so that the tooth plate 402 can only move in a straight line when moving, which effectively prevents the tooth plate 402 from shifting during movement. The design of the groove 408 improves the smoothness of the connecting rod 405 when moving, and then the tooth plate 402 and the moving sleeve 404 are linked through the connecting rod 405.
[0029] Furthermore, please see Figure 1 , Figure 2 and Figure 3 In this embodiment, a connecting rod is installed between the movable sleeve 404 and the stretching plate 406, and the movable sleeve 404 is connected to the stretching plate 406 through the connecting rod. Fixed seats are installed at the left and right ends of the top of the fixed plate 3, and a sliding rod 409 is installed inside the fixed seat. The sliding rod 409 extends to the inside of the stretching plate 406. The movable sleeve 404 and the stretching plate 406 generate synchronous movement through the connecting rod. Through the design of the sliding rod 409, the stability of the stretching plate 406 is greatly improved when the stretching plate 406 moves away from and close to each other.
[0030] Furthermore, please see Figure 1 , Figure 2 and Figure 4In this embodiment, baffles 5 are installed at the front and rear ends of the top of the fixed plate 3, a U-shaped plate 6 is installed on the top of the stretching plate 406, and the first serrated plate 7 and the second serrated plate 701 are installed at the top and bottom ends of the inner side of the U-shaped plate 6 respectively. By placing the two ends of the film inside the U-shaped plate 6 and the design of the first serrated plate 7 and the second serrated plate 701, the friction force at the two ends of the film is increased, which effectively prevents the film from falling off during lateral stretching and improves efficiency.
[0031] For further information, see Figure 1 , Figure 3 and Figure 4 In this embodiment, a screw rod 8 is installed on the top of the U-shaped plate 6, and a support rod 9 is symmetrically installed on the outside of the screw rod 8. The screw rod 8 and the support rod 9 both extend to the inside of the first serrated plate 7. By rotating the screw rod 8, the first serrated plate 7 and the screw rod 8 have a threaded reaction, so that the first serrated plate 7 rotates and descends. The first serrated plate 7 is fixed and limited by the support rod 9, so that the first serrated plate 7 can be adjusted to achieve the fixation of films of different thicknesses.
[0032] For further information, see Figure 2 and Figure 4 In this embodiment, an I-shaped groove 10 is provided on the outside of the second serrated plate 701, and a clamping plate 11 is installed at a position inside the U-shaped plate 6 corresponding to the I-shaped groove 10. A spring 12 is installed at the bottom of the second serrated plate 701. When the polyester film is stretched, the first serrated plate 7 and the second serrated plate 701 cannot completely clamp the film due to the continuous thinning of the thickness. The spring 12 stores energy through expansion and contraction, so that the second serrated plate 701 always has the force to fit the first serrated plate 7 upward, and the I-shaped groove 10 is clamped by the clamping plate 11, which effectively prevents the second serrated plate 701 from deflecting.
[0033] In this embodiment, the implementation scenario is specifically as follows: in the production process of polyester film, to ensure that it has good performance, when the polyester film needs to be stretched, the two ends of the film are placed inside the U-shaped plate 6, and the friction force at the two ends of the film is increased through the design of the first serrated plate 7 and the second serrated plate 701, which effectively prevents the film from falling off during lateral stretching. By rotating the screw rod 8, the first serrated plate 7 and the screw rod 8 have a threaded reaction, so that the first serrated plate 7 rotates and descends. The first serrated plate 7 is fixed and limited by the support rod 9, so that the first serrated plate 7 can be adjusted to achieve the fixation of films of different thicknesses. When the polyester film is stretched, the thickness becomes thinner and thinner. By storing energy through the expansion and contraction of the spring 12, the second serrated plate 701 always has the force to fit upwardly with the first serrated plate 7, and by connecting the inside of the gear 401 with the driving motor, the gear 401 is rotated, so that the gear 401 is meshed with the tooth plate 402, so that the tooth plate 402 can reciprocate on the outside of the gear 401, so that the connecting rod 405 moves with the tooth plate 402, thereby driving the movable sleeve 404 to slide on the outside of the track 403, and finally driving the stretching plate 406 to expand to both sides. At the same time, through the design of the sliding rod 409, the stability of the stretching plate 406 is greatly improved when it moves away from and close to each other, thereby performing a horizontal pulling test on the film.
[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A polyester film horizontal stretching device, comprising a frame (1), characterized in that: A control box (2) is installed on the left side of the frame (1), a fixing plate (3) is installed between the frames (1), and a stretching component (4) is installed on the top of the fixing plate (3); The stretching component (4) is used to stretch the polyester film in the transverse direction.
2. A polyester film horizontal stretching device according to claim 1, characterized in that: The stretching assembly (4) comprises a gear (401), a tooth plate (402), a track (403), a movable sleeve (404), a connecting rod (405) and a stretching plate (406), wherein the gear (401) is mounted on the top of the fixed plate (3), the tooth plate (402) is symmetrically mounted on the front and rear sides of the gear (401), the track (403) is mounted on the outside of the tooth plate (402), the movable sleeve (404) is mounted on the outside of the track (403), the connecting rod (405) is mounted between the tooth plate (402) and the movable sleeve (404), and the stretching plate (406) is mounted on the front side of the movable sleeve (404).
3. A polyester film horizontal stretching device according to claim 2, characterized in that: A sliding frame (407) is installed outside the tooth plate (402), a groove (408) is provided on the top of the sliding frame (407), and one end of the connecting rod (405) is connected to the tooth plate (402) through the groove (408).
4. A polyester film horizontal stretching device according to claim 2, characterized in that: A connecting rod is installed between the movable sleeve (404) and the stretching plate (406), and the movable sleeve (404) is connected to the stretching plate (406) through the connecting rod. Fixed seats are installed at the left and right ends of the top of the fixed plate (3), and a sliding rod (409) is installed inside the fixed seat. The sliding rod (409) extends to the inside of the stretching plate (406).
5. A polyester film horizontal stretching device according to claim 2, characterized in that: Baffles (5) are installed at the front and rear ends of the top of the fixed plate (3), a U-shaped plate (6) is installed at the top of the stretching plate (406), and a first serrated plate (7) and a second serrated plate (701) are installed at the top and bottom ends of the inner side of the U-shaped plate (6), respectively.
6. A polyester film horizontal stretching device according to claim 5, characterized in that: A screw rod (8) is installed on the top of the U-shaped plate (6), and a support rod (9) is symmetrically installed outside the screw rod (8), and both the screw rod (8) and the support rod (9) extend to the inside of the first serrated plate (7).
7. A polyester film horizontal stretching device according to claim 6, characterized in that: An I-shaped groove (10) is provided on the outside of the second serrated plate (701), a clamping plate (11) is installed at a position corresponding to the I-shaped groove (10) inside the U-shaped plate (6), and a spring (12) is installed at the bottom of the second serrated plate (701).