Drying device for plastic film production
By introducing a squeegee and a drying unit into the drying equipment for plastic film production, the problems of slow drying speed and increased costs caused by residual water droplets have been solved, achieving rapid drying and efficient production.
Patent Information
- Application Number
- CN202520135063.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing drying equipment for plastic film production dries slowly when residual water droplets remain, increasing energy consumption and thus production costs.
A drying device for plastic film production, including a squeegee assembly and a drying assembly, was designed. The squeegee assembly removes water droplets from the surface and bottom of the film using an upper and lower scraper. The drying assembly generates hot air through a heating chamber and a fan to dry the film, ensuring that the hot air makes full contact with the film.
It speeds up the drying process of plastic film, reduces production costs, and improves the dryness of the film and product quality.
Smart Images
Figure CN223777603U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plastic film production technology, specifically a drying device for plastic film production. Background Technology
[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene, and other resins. It is used for packaging and as a coating layer. Plastic film is a sheet-like product made of polymer materials and is widely used in packaging, agriculture, industry, and many other fields. It has the characteristics of being lightweight, transparent, flexible, and durable, and can be customized according to different application needs. As an important packaging material, plastic film plays an indispensable role in modern industry and life.
[0003] In the current plastic film production process, water is used to cool and shape the plastic film. After cooling, water droplets will adhere to the plastic film. However, the existing drying equipment for plastic film production does not have a water scraping function and directly dries the plastic film with hot air. With residual water droplets, the drying speed is slow, which increases energy consumption and thus increases the production cost of plastic film. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a drying device for plastic film production. The device can remove water droplets adhering to the surface and bottom of the plastic film through a water scraping component, reducing water droplet residue and ensuring a certain degree of dryness before hot air drying. This can accelerate the drying speed of the plastic film, reduce the production cost of the plastic film, and dry the moisture on the plastic film through a drying component, thereby improving the dryness of the plastic film and ensuring product quality. There are gaps between the heating box, the drying box and the plastic film, so that the hot air can circulate around the plastic film and make full contact with the plastic film, thereby improving the drying efficiency of the plastic film.
[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:
[0006] A drying device for plastic film production includes: a drying table; multiple support blocks a installed on both sides of the top of the drying table; two rolling rollers rotatably connected between two of the support blocks a via bearings; a scraper assembly installed on the top of the drying table, the scraper assembly including: a cleaning box, a fixing frame, an upper scraper, a support block, and a lower scraper; and a drying assembly installed on the top of the drying table, the drying assembly including: a drying box, a fixing base, a fan, an exhaust pipe, a heating box, a heating rod, and a heater.
[0007] Preferably, a cleaning box is installed on the top of the drying table, a fixing frame is installed at the top inside the cleaning box, upper scrapers are installed on both sides of the bottom of the fixing frame, a support block is installed between each two adjacent support blocks a, and a lower scraper is installed at the top of the support block relative to the upper scraper.
[0008] Preferably, a drying box is installed on one side of the cleaning box, and the drying box is connected to the cleaning box. A fixing base is installed on the back of the drying box, and a fan is installed on the top of the fixing base. An exhaust pipe is installed between the fan and the drying box. A heating box is installed inside the drying box, and one end of the exhaust pipe passes through the top of the inside of the heating box. A heating rod is installed at the bottom of the inside of the heating box, and a heater is installed on one side of the heating rod. A control box is installed on the outside of the drying table.
[0009] Preferably, mounting blocks a are installed on both sides of the outer end of the upper scraper, and the mounting blocks a are fixedly installed to the fixing frame by bolts. Mounting blocks b are installed on both sides of the bottom of the lower scraper, and the mounting blocks b are fixedly installed to the support block by bolts. A baffle is rotatably connected to the outside of the cleaning box by a hinge.
[0010] Preferably, a water collection trough is provided at the bottom of the drying table, and several railings are installed at the top of the water collection trough.
[0011] Preferably, a water outlet pipe is installed on one side of the bottom of the water collection tank, a drain valve is installed on the water outlet pipe, and a collection box is provided at the bottom of the water outlet pipe.
[0012] Preferably, a support base is installed on one side of the outer end of the drying table, and support blocks b are installed on both sides of the top of the support base. The inner sides of the two support blocks b are rotatably connected to a connecting shaft through bearings. A winding drum is installed between the two connecting shafts. A rotary motor is installed on the outer end of one of the support blocks b, and the output shaft of the rotary motor is rotatably connected to one of the connecting shafts.
[0013] The beneficial effects of this utility model are:
[0014] (1) The water-scraping component of this utility model can scrape off the water droplets adhering to the surface and bottom of the plastic film, reduce the water droplet residue, and thus ensure that it has a certain degree of dryness before hot air drying. This can speed up the drying speed of the plastic film, solve the problem that the drying speed will be slow when there are residual water droplets on the plastic film, which will increase the power consumption and reduce the production cost of the plastic film.
[0015] (2) The drying component of this utility model can dry the moisture on the plastic film, improve the dryness of the plastic film, and ensure product quality. There is a gap between the heating box, the drying box and the plastic film, so that the hot air can circulate around the plastic film and the hot air can fully contact the plastic film, thereby improving the drying efficiency of the plastic film. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic cross-sectional view of the present invention.
[0018] Figure 3 For the present utility model Figure 2 Enlarged view of point A in the middle.
[0019] Figure 4 This is a schematic diagram of the connection structure between the heating box, exhaust pipe and fan of this utility model.
[0020] Figure 5 This is a bottom view of the heating box structure of this utility model.
[0021] Figure 6 This is a cross-sectional schematic diagram of the heating box of this utility model.
[0022] Figure 7 This is a top view of the drying table structure of this utility model.
[0023] Figures 1-7 In the middle: 1. Drying table; 101. Support block a; 102. Rolling roller; 2. Cleaning box; 201. Fixing frame; 202. Upper scraper; 203. Support block; 204. Lower scraper; 205. Mounting block a; 206. Mounting block b; 207. Baffle; 3. Drying box; 301. Fixing seat; 302. Fan; 303. Exhaust pipe; 304. Heating box; 305. Heating rod; 306. Heater; 4. Water collection tank; 401. Fence; 5. Water outlet pipe; 501. Drain valve; 502. Collection box; 6. Support seat; 601. Support block b; 602. Connecting shaft; 603. Winding drum; 604. Rotary motor. Detailed Implementation
[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0025] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0026] Example
[0027] like Figures 1-7 As shown, a drying device for plastic film production includes: a drying table 1, multiple support blocks a101 installed on both sides of the top of the drying table 1, two rolling rollers 102 rotatably connected between two support blocks a101 via bearings, a scraper assembly installed on the top of the drying table 1, the scraper assembly including: a cleaning box 2, a fixing frame 201, an upper scraper 202, a support block 203 and a lower scraper 204, and a drying assembly installed on the top of the drying table 1, the drying assembly including: a drying box 3, a fixing base 301, a fan 302, an exhaust pipe 303, a heating box 304, a heating rod 305 and a heater 306.
[0028] The drying table 1 is equipped with a cleaning box 2 on top. The cleaning box 2 is equipped with a fixed frame 201 at the top inside. The fixed frame 201 is equipped with upper scrapers 202 on both sides of the bottom. A support block 203 is installed between two adjacent support blocks a101. A lower scraper 204 is installed at the top of the support block 203 relative to the upper scraper 202.
[0029] When the drying table 1 is in use, one end of the drying table 1 is connected to the cooling table. After the plastic film is produced and cooled and shaped by cold water on the cooling table, the plastic film is introduced into the drying table 1 and passed between two rolling rollers 102. The plastic film passes through the cleaning box 2 and the drying box 3 in sequence. When the plastic film enters the cleaning box 2, the surface and bottom of the plastic film come into contact with the upper scraper 202 and the lower scraper 204 respectively. The upper scraper 202 and the lower scraper 204 can remove the water droplets adhering to the surface and bottom of the plastic film, reducing the water droplet residue. This ensures that the film has a certain degree of dryness before hot air drying, which can speed up the drying speed of the plastic film and solve the problem that the drying speed will be slow when there are residual water droplets on the plastic film, which will increase the power consumption and reduce the production cost of the plastic film.
[0030] The upper scraper 202 has mounting blocks a205 installed on both sides of its outer end. The mounting blocks a205 are fixed to the fixing frame 201 by bolts. The lower scraper 204 has mounting blocks b206 installed on both sides of its bottom. The mounting blocks b206 are fixed to the support block 203 by bolts. The outside of the cleaning box 2 is connected to a baffle 207 by a hinge. When the upper scraper 202 and the lower scraper 204 are in use, they are installed on the fixing frame 201 and the support block 203 by mounting blocks a205 and b206 respectively. When the upper scraper 202 and the lower scraper 204 are worn or damaged, they can be flexibly disassembled and installed. The baffle 207 on the outside of the cleaning box 2 can be opened to facilitate the disassembly and replacement of the upper scraper 202 and the lower scraper 204.
[0031] The cleaning box 2 has a drying box 3 installed on one side, and the drying box 3 is connected to the cleaning box 2. The back of the drying box 3 has a fixed base 301 installed, and the top of the fixed base 301 has a fan 302 installed. The fan 302 and the drying box 3 have an exhaust pipe 303 installed between them. The drying box 3 has a heating box 304 installed inside, and one end of the exhaust pipe 303 passes through the top of the heating box 304. The bottom of the heating box 304 has a heating rod 305 installed inside, and a heater 306 is installed on one side of the heating rod 305. The drying table 1 has a control box installed on the outside.
[0032] After the water droplets adhering to the surface and bottom of the plastic film are scraped off inside the cleaning box 2 by the upper scraper 202 and the lower scraper 204, the plastic film can be conveyed inside the cleaning box 2 and the drying box 3 by the transmission of the rolling roller 102. At this time, the fan 302 and the heating rod 305 are started by controlling the control box. The fan 302 blows air into the exhaust pipe 303 and discharges it into the heating box 304. The air blown from top to bottom is directed towards the heating rod 305. The heating rod 305 generates heat to form hot air, which is then blown out from the bottom of the heating box 304 onto the plastic film. This can dry the moisture on the plastic film, improve the dryness of the plastic film, and ensure product quality. There are gaps between the heating box 304, the drying box 3 and the plastic film, so that the hot air can circulate around the plastic film and make full contact with the plastic film, improving the drying efficiency of the plastic film.
[0033] Its control box is connected to the fan 302, heater 306 and rotary motor 604 by wires. The heater 306 is connected to the heating rod 305 by wires. The control box is powered by an external power supply. The control box is equipped with an electronic display screen and multiple control buttons, adjustment buttons and on / off buttons. The control box can set the heating temperature of the heater 306 to achieve temperature control and adjustability, so as to avoid the heating rod 305 from being damaged by excessive heating temperature.
[0034] Among them, a support base 6 is installed on one side of the outer end of the drying table 1, and support blocks b601 are installed on both sides of the top of the support base 6. The inner sides of the two support blocks b601 are rotatably connected to the connecting shaft 602 through bearings. A winding drum 603 is installed between the two connecting shafts 602. A rotary motor 604 is installed on the outer end of one of the support blocks b601, and the output shaft of the rotary motor 604 is rotatably connected to one of the connecting shafts 602.
[0035] The plastic film is introduced into the drying table 1 and threaded between the two rollers 102. After passing through the cleaning box 2 and the drying box 3, one end of the plastic film is pulled out from the drying box 3 and wound onto the take-up drum 603. The rotary motor 604 is started by controlling the control box. The rotary motor 604 drives the output shaft to rotate the connecting shaft 602 at a constant speed, which in turn drives the take-up drum 603 to rotate, thereby straightening the plastic film and putting it in a taut state. The dried plastic film can then be wound up and placed. After the plastic film is wound up, both ends of the take-up drum 603 can be detached from the connecting shaft 602 and removed.
[0036] The drying table 1 has a water collection tank 4 at its bottom. Several railings 401 are installed at the top of the water collection tank 4. When water droplets adhering to the surface and bottom of the plastic film are scraped off, the water droplets will fall onto the drying table 1. The railings 401 are connected to the water collection tank 4, and the water droplets will fall from between the railings 401 into the water collection tank 4 for collection, thus preventing them from falling from the drying table 1 onto the ground and wetting the work area.
[0037] The water collection tank 4 has a water outlet pipe 5 installed on one side of its bottom. A drain valve 501 is installed on the water outlet pipe 5, and a collection box 502 is provided at the bottom of the water outlet pipe 5. After the water that falls into the water collection tank 4 is collected, when the amount of water collected increases, the drain valve 501 on the water outlet pipe 5 can be opened, and the water in the water collection tank 4 can be discharged from the water outlet pipe 5 into the collection box 502, which is convenient for draining and cleaning the water and prevents the water in the water collection tank 4 from overflowing the drying table 1 and flowing into the ground.
[0038] Working principle:
[0039] When the drying table 1 is in use, one end of the drying table 1 is connected to the cooling table. After the plastic film is produced and cooled and shaped by cold water on the cooling table, the plastic film is introduced into the drying table 1 and passed between two rolling rollers 102. The plastic film passes through the cleaning box 2 and the drying box 3 in sequence. When the plastic film enters the cleaning box 2, the surface and bottom of the plastic film come into contact with the upper scraper 202 and the lower scraper 204 respectively. The upper scraper 202 and the lower scraper 204 can remove the water droplets adhering to the surface and bottom of the plastic film, reducing the water droplet residue. This ensures that the film has a certain degree of dryness before hot air drying, which can speed up the drying speed of the plastic film and solve the problem that the drying speed will be slow when there are residual water droplets on the plastic film, which will increase the power consumption and reduce the production cost of the plastic film.
[0040] After the water droplets adhering to the surface and bottom of the plastic film are scraped off inside the cleaning box 2 by the upper scraper 202 and the lower scraper 204, the plastic film can be conveyed inside the cleaning box 2 and the drying box 3 by the transmission of the rolling roller 102. At this time, the fan 302 and the heating rod 305 are started by controlling the control box. The fan 302 blows air into the exhaust pipe 303 and discharges it into the heating box 304. The air blown from top to bottom is directed towards the heating rod 305. The heating rod 305 generates heat to form hot air, which is then blown out from the bottom of the heating box 304 onto the plastic film. This can dry the moisture on the plastic film, improve the dryness of the plastic film, and ensure product quality. There are gaps between the heating box 304, the drying box 3 and the plastic film, so that the hot air can circulate around the plastic film and make full contact with the plastic film, improving the drying efficiency of the plastic film.
[0041] After the plastic film passes through the cleaning box 2 and the drying box 3 in sequence, one end of the plastic film is pulled out from the drying box 3 and wound onto the take-up drum 603. The rotary motor 604 is started by controlling the control box. The rotary motor 604 drives the output shaft to drive the connecting shaft 602 to rotate at a constant speed, so that the connecting shaft 602 drives the take-up drum 603 to rotate, thereby straightening the plastic film and putting it in a taut state. The dried plastic film can then be wound up and placed. After the plastic film is wound up, both ends of the take-up drum 603 can be detached from the connecting shaft 602 and removed.
[0042] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0043] The above provides a detailed description of a drying apparatus for plastic film production provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A drying apparatus for plastic film production, characterized in that, include: Drying table (1); Multiple support blocks a (101) are installed on both sides of the top of the drying table (1); Two rolling rollers (102) are rotatably connected between the two support blocks a (101) by bearings. The squeegee assembly is located on the top of the drying table (1). The squeegee assembly includes: a cleaning box (2), a fixing frame (201), an upper squeegee (202), a support block (203), and a lower squeegee (204). The drying assembly is located on the top of the drying table (1). The drying assembly includes: a drying box (3), a fixed base (301), a fan (302), an exhaust pipe (303), a heating box (304), a heating rod (305), and a heater (306).
2. The drying apparatus for plastic film production according to claim 1, characterized in that, The drying table (1) is equipped with a cleaning box (2) on top. The cleaning box (2) is equipped with a fixing frame (201) at the top inside. The fixing frame (201) is equipped with upper scrapers (202) on both sides of the bottom. A support block (203) is installed between two adjacent support blocks a (101). A lower scraper (204) is installed at the top of the support block (203) relative to the upper scraper (202).
3. The drying apparatus for plastic film production according to claim 2, characterized in that, A drying box (3) is installed on one side of the cleaning box (2). The drying box (3) is connected to the cleaning box (2). A fixed seat (301) is installed on the back of the drying box (3). A fan (302) is installed on the top of the fixed seat (301). An exhaust pipe (303) is installed between the fan (302) and the drying box (3). A heating box (304) is installed inside the drying box (3). One end of the exhaust pipe (303) passes through the top of the heating box (304). A heating rod (305) is installed at the bottom of the heating box (304). A heater (306) is installed on one side of the heating rod (305). A control box is installed on the outside of the drying table (1).
4. The drying apparatus for plastic film production according to claim 2, characterized in that, Mounting blocks a (205) are installed on both sides of the outer end of the upper scraper (202). The mounting blocks a (205) are fixed to the fixing frame (201) by bolts. Mounting blocks b (206) are installed on both sides of the bottom of the lower scraper (204). The mounting blocks b (206) are fixed to the support block (203) by bolts. A baffle (207) is rotatably connected to the outside of the cleaning box (2) by a hinge.
5. The drying apparatus for plastic film production according to claim 1, characterized in that, The drying table (1) has a water collection trough (4) at the bottom inside, and several railings (401) are installed at the top inside the water collection trough (4).
6. The drying apparatus for plastic film production according to claim 5, characterized in that, A water outlet pipe (5) is installed on one side of the bottom of the water collection tank (4), a drain valve (501) is installed on the water outlet pipe (5), and a collection box (502) is provided at the bottom of the water outlet pipe (5).
7. The drying apparatus for plastic film production according to claim 1, characterized in that, A support base (6) is installed on one side of the outer end of the drying table (1). Support blocks b (601) are installed on both sides of the top of the support base (6). The inner sides of the two support blocks b (601) are rotatably connected to the connecting shaft (602) through bearings. A winding drum (603) is installed between the two connecting shafts (602). A rotary motor (604) is installed on the outer end of one of the support blocks b (601). The output shaft of the rotary motor (604) is rotatably connected to one of the connecting shafts (602).