Film pretreatment device
By designing a pretreatment device for PLA films, using heat treatment and mechanical adjustment, the problem of the film being easily formed in the clamping process is solved, and the quality and ductility of the film are improved.
Patent Information
- Application Number
- CN202421980414.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-08-15
AI Technical Summary
When PLA film is extruded, cooled and flattened at high temperature, it has a high density and a hard film surface, which is easy to form edge folds during the clamping process, affecting the quality of the film.
A film pretreatment device is designed to detect temperature through a thermocouple probe, and the internal and external heaters are controlled by a controller to heat the inner and outer sides of the film to improve the ductility of the film. At the same time, the outlet width of the herringbone is adjusted by the fastening rod and the adjustment plate, used with different films, and guide the film through the traction roller and guide roller to ensure its smooth forming.
Through heating treatment, the film is softened, making it easier to clamp and mold, reduce edge folding, and improve the quality and ductility of the film.
Smart Images
Figure CN222904629U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of film processing, in particular to a film preprocessing device. Background Art
[0002] PLA film is a new type of biodegradable film with broad market application prospects. When PLA film is extruded at high temperature, cooled and flattened into film, due to its high density, the film surface is hard and flattened when it enters the upper traction roller, which easily forms edge folds and affects the quality of the film.
[0003] The present application designs a film pretreatment device, which pre-treats the inner and outer sides of the film simultaneously, heats and softens the film, and facilitates clamping and flattening. Utility Model Content
[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the name of the utility model of this application to avoid blurring the purpose of this section, the abstract of the specification and the name of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.
[0005] In view of the above-mentioned problems and / or problems existing in the use of the thin film pretreatment device, the present utility model is proposed.
[0006] Therefore, the purpose of the utility model is to provide a film pretreatment device, which detects temperature through a thermocouple probe, controls the internal heater and the external heater through a controller, heats the inside and outside of the film blown by the film tube bubble, improves the ductility of the film, and adjusts the outlet width of the herringbone plate through the cooperation of the fastening rod and the adjustment plate. It can be used with different films, and the film is pulled by the traction roller and guided by the guide roller, and the film is sent out from the discharge channel through the first steering roller and the second steering roller.
[0007] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:
[0008] A thin film pretreatment device, comprising:
[0009] A heating mechanism, the heating mechanism comprising a heating chamber, a herringbone plate disposed inside the heating chamber, an external heater disposed outside the herringbone plate, and an internal heater disposed inside the herringbone plate;
[0010] The traction mechanism comprises a discharge bin, two traction rollers and a guide roller arranged inside the discharge bin, and the traction rollers are arranged on both sides of the top outlet of the herringbone plate.
[0011] As a preferred embodiment of a film pretreatment device according to the present utility model, the inner heater and the outer heater are both made of infrared carbon fiber heaters. The inner heater and the outer heater are electrically connected to a controller. A thermocouple probe is disposed inside the heating chamber, and the thermocouple probe is electrically connected to the controller.
[0012] As a preferred embodiment of a film pretreatment device according to the present utility model, a lifting rod is disposed inside the heating chamber, and the inner heater is fixedly installed at the lifting end of the lifting rod.
[0013] As a preferred embodiment of a film pretreatment device according to the present utility model, guide wheels are disposed on the inner side of the herringbone plate, and a film tube bubble that passes into the herringbone plate and moves along the guide wheels is disposed inside the heating chamber.
[0014] As a preferred embodiment of a film pretreatment device according to the present utility model, clamping grooves are disposed on both sides of the top of the herringbone plate, fastening rods are disposed inside the clamping grooves, and an adjusting plate is disposed between the fastening rods.
[0015] As a preferred embodiment of a film pretreatment device according to the present utility model, a discharge channel is disposed at the outlet of the discharge bin, and a first turning roller and a second turning roller are disposed on the discharge channel.
[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: For this film pretreatment device, the temperature is detected by the thermocouple probe, and the inner heater and the outer heater are controlled by the controller to heat the inner and outer sides of the film formed by blowing the film tube bubble, thereby improving the extensibility of the film. By cooperating with the fastening rods and the adjusting plate, the outlet width of the herringbone plate can be adjusted to be suitable for different films. The film is pulled by the traction roller and guided by the guide roller, and is sent out from the discharge channel through the first turning roller and the second turning roller. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts. Among them:
[0018] Figure 1 is a schematic diagram of the overall structure of a film pretreatment device according to the present utility model;
[0019] Figure 2 is a schematic diagram of the structure of part a in a film pretreatment device according to the present utility model; Figure 1 in the present utility model.
[0020] 100. Heating mechanism; 110. Heating chamber; 111. Thermocouple probe; 112. Film tube bubble; 120. Herringbone plate; 121. Guide wheel; 122. Adjusting plate; 123. Tightening rod; 130. Inner heater; 131. Lifting rod; 140. Outer heater; 200. Traction mechanism; 210. Discharge bin; 211. Discharge channel; 212. First turning roller; 213. Second turning roller; 220. Traction roller; 230. Guide roller. Detailed implementation manners
[0021] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe in detail the specific implementation manners of the present utility model with reference to the accompanying drawings.
[0022] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When detailing the implementation manners of the present utility model, for the convenience of description, the cross-sectional views showing the device structure will not be enlarged locally in a general proportion, and the schematic diagrams are only examples, which should not limit the protection scope of the present utility model here. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.
[0023] To make the purpose, technical solutions, and advantages of the present utility model clearer, the following will further describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.
[0024] The present utility model provides a film pretreatment device. The temperature is detected by a thermocouple probe, and the inner heater and the outer heater are controlled by a controller to heat the inner and outer sides of the film blown by the film tube bubble, improving the extensibility of the film. The outlet width of the herringbone plate is adjusted through the cooperation of the tightening rod and the adjusting plate, which can be used in combination with different films. The film is tractioned by the traction roller and guided by the guide roller, and the film is sent out from the discharge channel through the first turning roller and the second turning roller.
[0025] Figure 1 - Figure 2 Shown is a structural schematic diagram of an implementation manner of a film pretreatment device of the present utility model. Please refer to Figure 1 - Figure 2 , A film pretreatment device of this implementation manner, its main part includes a heating mechanism 100 and a traction mechanism 200.
[0026] The heating mechanism 100 detects the temperature through the thermocouple probe 111, controls the inner heater 130 and the outer heater 140 through the controller, heats the inner and outer sides of the film blown by the film tube bubble 112, improves the extensibility of the film, and adjusts the outlet width of the chevron plate 120 through the cooperation of the fastening rod 123 and the adjusting plate 122, so as to be compatible with different films. Specifically, the heating mechanism 100 includes a heating chamber 110, a chevron plate 120 arranged inside the heating chamber 110, an outer heater 140 arranged outside the chevron plate 120, and an inner heater 130 arranged inside the chevron plate 120. In this embodiment, both the inner heater 130 and the outer heater 140 are made of infrared carbon fiber heaters. The inner heater 130 and the outer heater 140 are electrically connected to a controller. A thermocouple probe 111 is arranged inside the heating chamber 110, and the thermocouple probe 111 is electrically connected to the controller. A lifting rod 131 is arranged inside the heating chamber 110, and the inner heater 130 is fixedly installed at the lifting end of the lifting rod 131. Guide wheels 121 are arranged inside the chevron plate 120. A film tube bubble 112 that passes through the inside of the chevron plate 120 and moves along the guide wheels 121 is arranged inside the heating chamber 110. Card slots are arranged on both sides of the top of the chevron plate 120. A fastening rod 123 is arranged inside the card slots, and an adjusting plate 122 is arranged between the fastening rods 123;
[0027] The traction mechanism 200 tractions the film through the traction rollers 220, guides the film through the guide rollers 230, and sends the film out from the discharge channel 211 through the first turning roller 212 and the second turning roller 213 for subsequent processing. Specifically, the traction mechanism 200 includes a discharge chamber 210, two traction rollers 220 and guide rollers 230 arranged inside the discharge chamber 210. The traction rollers 220 are arranged on both sides of the top outlet of the chevron plate 120. In this embodiment, a discharge channel 211 is arranged at the outlet of the discharge chamber 210, and the discharge channel 211 is provided with a first turning roller 212 and a second turning roller 213.
[0028] Combined Figure 1 - Figure 2 , in the specific use process of a film pretreatment device in this embodiment, the temperature is detected through the thermocouple probe 111, the inner heater 130 and the outer heater 140 are controlled through the controller to heat the inner and outer sides of the film blown by the film tube bubble 112, improve the extensibility of the film, adjust the outlet width of the chevron plate 120 through the cooperation of the fastening rod 123 and the adjusting plate 122 to be compatible with different films, traction the film through the traction rollers 220, guide the film through the guide rollers 230, and send the film out from the discharge channel 211 through the first turning roller 212 and the second turning roller 213.
[0029] Although the present utility model has been described above with reference to the embodiments, various improvements can be made thereto and components thereof can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the features in the embodiments disclosed by the present utility model can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A thin film pretreatment device, characterized in that: include: A heating mechanism (100), the heating mechanism (100) comprising a heating chamber (110), a herringbone plate (120) arranged inside the heating chamber (110), an external heater (140) arranged outside the herringbone plate (120), and an internal heater (130) arranged inside the herringbone plate (120); A traction mechanism (200), the traction mechanism (200) comprising a discharge bin (210), two traction rollers (220) arranged inside the discharge bin (210), and a guide roller (230), the traction rollers (220) being arranged on both sides of the top outlet of the herringbone plate (120).
2. A thin film pretreatment device according to claim 1, characterized in that: The inner heater (130) and the outer heater (140) are both made of infrared carbon fiber heaters, and the inner heater (130) and the outer heater (140) are electrically connected to a controller. A thermocouple probe (111) is arranged inside the heating chamber (110), and the thermocouple probe (111) is electrically connected to the controller.
3. A thin film pretreatment device according to claim 2, characterized in that: A lifting rod (131) is provided inside the heating chamber (110), and the internal heater (130) is fixedly mounted on the lifting end of the lifting rod (131).
4. A thin film pretreatment device according to claim 3, characterized in that: A guide wheel (121) is arranged on the inner side of the herringbone plate (120), and a thin film tube bubble (112) is arranged inside the heating chamber (110) and passes into the interior of the herringbone plate (120) and moves along the guide wheel (121).
5. A thin film pretreatment device according to claim 4, characterized in that: The top two sides of the herringbone plate (120) are provided with clamping grooves, the insides of the clamping grooves are provided with fastening rods (123), and the adjusting plates (122) are provided between the fastening rods (123).
6. A thin film pretreatment device according to claim 5, characterized in that: The outlet of the discharge bin (210) is provided with a discharge channel (211), and the discharge channel (211) is provided with a first turning roller (212) and a second turning roller (213).