A mixing and heating device for polyester film production

Abstract

This utility model discloses a mixing and heating device for polyester film production, including a mixing tank. A motor is fixedly connected to the top of the mixing tank, and a rotating rod is fixedly connected to the output end of the motor. A pair of connecting sleeves are fixedly connected to the outer wall of the rotating rod. In actual use, after the motor starts, it drives the rotating rod to rotate, which in turn drives the connecting sleeves and the stirring rod to rotate. The stirring rod stirs the polyester film raw materials in the mixing tank, causing them to be initially mixed. The connecting sleeves drive the connecting rod to rotate, which in turn causes the scraper to scrape the raw materials off the inner wall of the mixing tank, preventing the raw materials from adhering to the tank wall and affecting the mixing effect. During the scraping process, the spring in the sliding cavity pushes the inner rod in the limiting ring through elasticity, so that the scraper always keeps in close contact with the inner wall of the mixing tank. Even if the scraper wears, the fit is still guaranteed. This combination solves the problems of uneven mixing and difficult cleaning of raw material residue on the tank wall in existing devices, and realizes rapid and thorough mixing of raw materials.

Description

Technical Field

[0001] This utility model relates to the field of polyester film production and processing, specifically a mixing and heating device for polyester film production. Background Technology

[0002] A mixing and heating device for polyester film production is a core piece of equipment for achieving raw material mixing and heating in the polyester film production process. The device primarily consists of a sealed mixing container with various types of internal stirring blades. Driven by a motor, it efficiently mixes raw materials such as polyester resin and additives. Heating elements, such as electric heating wires and steam heating pipes, are installed externally or internally within the container. Combined with temperature sensors and an intelligent control system, the temperature can be precisely adjusted to ensure the raw materials reach the appropriate reaction temperature, improving fluidity. Simultaneously, the device's rational structural design reduces material residue and heat loss, ensuring mixing uniformity and heating efficiency, laying the foundation for producing high-quality, stable-performance polyester films.

[0003] A search revealed Chinese patent CN222345995U, which discloses a mixing and heating device for polyester film production. This patent describes a design consisting of a top cover, fastening pins, a track, a slide, a motor, a main shaft, positioning holes, bolts, nuts, and guide grooves. The top cover can be fastened to the top opening of the inner tank via fastening pins, and can also be movably connected to the inner tank. The angle of the top cover above the inner tank is adjustable, as is the angle of the track. The motor is not directly fixed to the top cover but is mounted on the slide, which is movably connected to the track. After the position is determined, the slide can be fixed to any positioning hole in the track using bolts and nuts. Therefore, the position of the stirring blades in the inner tank is adjustable, and different blade positions will produce different flow patterns and mixing effects on the melt. By adjusting the position of the stirring blades, more uniform and efficient mixing can be achieved according to the viscosity, temperature, and mixing requirements of the polyester melt. The stirring blades can not only stir at the center of the inner tank, but also be adjusted to the edge of the inner tank. This helps to reduce dead zones in the stirring, ensure that the components in the melt are fully mixed, and improve product quality.

[0004] In this solution, although uniform mixing can be achieved by adjusting the stirring blades, the polyester melt will adhere to the inner wall of the inner tank during the heating process, which makes it impossible for the stirring blades to scrape it off, resulting in uneven mixing of this part of the raw material. In order to solve this technical problem, this utility model proposes a mixing and heating device for polyester film production. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In this solution, although uniform mixing can be achieved by adjusting the stirring blades, the polyester melt will adhere to the inner wall of the inner tank during the heating process, which makes it impossible for the stirring blades to scrape it off, resulting in uneven mixing of this part of the raw material. In order to solve this technical problem, this utility model proposes a mixing and heating device for polyester film production.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a mixing and heating device for polyester film production, comprising a mixing tank, a motor fixedly connected to the top of the mixing tank, a rotating rod fixedly connected to the output end of the motor, a pair of connecting sleeves fixedly connected to the outer wall of the rotating rod, a connecting rod fixedly connected to both sides of each connecting sleeve, a spring fixedly connected inside each connecting rod, a limit ring fixedly connected to the other end of each spring, an inner rod fixedly connected inside the limit ring, and a scraper fixedly connected to the other end of the inner rod.

[0009] Preferably, a plurality of stirring rods are fixedly connected to the outer side wall of the middle of the rotating rod, and the stirring rods and the scraper are rotatably connected inside the mixing barrel, while the scraper is in close contact with the inner wall of the mixing barrel.

[0010] Preferably, a auger blade is fixedly connected to the bottom end of the rotating rod, a discharge pipe is fixedly connected to the bottom of the mixing tank, and the auger blade is rotatably connected inside the discharge pipe, while a valve is provided outside the discharge pipe.

[0011] Preferably, each of the connecting rods has a sliding cavity inside, and a spring is fixedly connected inside the sliding cavity, while the inner rod is slidably connected inside the sliding cavity.

[0012] Preferably, the mixing barrel has an installation groove on its outer wall, a generator is installed outside the mixing barrel, and an electric heating tube is installed outside the generator, with the electric heating tube installed in the installation groove.

[0013] Preferably, a feeding pipe is fixedly connected to the top of the mixing tank, and a support base is fixedly connected to the bottom of the mixing tank.

[0014] (III) Beneficial Effects

[0015] This invention provides a mixing and heating device for polyester film production. It has the following advantages:

[0016] (1) After the motor starts, it drives the rotating rod to rotate, and the rotating rod drives the connecting sleeve and the stirring rod to rotate. The stirring rod stirs the polyester sheet raw material in the mixing barrel to make it initially mixed. At the same time, the connecting sleeve drives the connecting rod to rotate, which in turn allows the scraper to scrape the raw material on the inner wall of the mixing barrel, so as to avoid the raw material adhering to the barrel wall and affecting the mixing effect. During the scraping process, the spring in the sliding cavity pushes the inner rod in the limiting ring through elasticity, so that the scraper is always in close contact with the inner wall of the mixing barrel. Even if the scraper is worn, the fit can be guaranteed. This combination solves the problems of uneven mixing and difficult cleaning of raw material residue on the barrel wall in the existing device, realizes the rapid and full mixing of raw materials, improves the mixing efficiency and quality, and provides high-quality mixed raw materials for subsequent production processes.

[0017] (2) After the valve is opened, the motor drives the rotating rod to rotate, which in turn drives the auger blade at its bottom to rotate synchronously. The rotating auger blade generates propulsion force, continuously conveying the mixed raw materials in the mixing tank to the outside through the discharge pipe. During this process, the auger blade rotates continuously, and by utilizing the principle of spiral propulsion, it effectively prevents the raw materials from accumulating and clogging in the discharge pipe, ensuring smooth discharge. This structure solves the problems of easy clogging and low conveying efficiency of existing devices. Through the cooperation of the motor, rotating rod, auger blade, discharge pipe, and valve, it achieves efficient and stable discharge of raw materials, eliminating the need for frequent manual unblocking, reducing labor intensity, improving production continuity and overall work efficiency, and ensuring the smooth operation of the polyester film raw material processing flow. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the external structure of the rotating rod of this utility model;

[0021] Figure 4 for Figure 3 A magnified view is shown in section A.

[0022] In the diagram: 1. Mixing tank; 2. Motor; 3. Rotating rod; 4. Connecting sleeve; 5. Connecting rod; 6. Inner rod; 7. Scraper; 8. Stirring rod; 9. Slide cavity; 10. Spring; 11. Limiting ring; 12. Auger blade; 13. Discharge pipe; 14. Valve; 15. Support base; 16. Generator; 17. Mounting groove; 18. Electric heating element; 19. Feeding pipe. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] Example 1: A mixing and heating device for polyester film production includes a mixing tank 1. A motor 2 is fixedly connected to the top of the mixing tank 1. A rotating rod 3 is fixedly connected to the output end of the motor 2. A pair of connecting sleeves 4 are fixedly connected to the outer wall of the rotating rod 3. A connecting rod 5 is fixedly connected to both sides of each connecting sleeve 4. A spring 10 is fixedly connected inside each connecting rod 5. A limit ring 11 is fixedly connected to the other end of each spring 10. An inner rod 6 is fixedly connected inside the limit ring 11. A scraper 7 is fixedly connected to the other end of the inner rod 6. Multiple stirring rods 8 are fixedly connected to the outer wall of the middle of the moving rod 3. The stirring rods 8 and the scraper 7 are rotatably connected inside the mixing tank 1. At the same time, the scraper 7 is in close contact with the inner wall of the mixing tank 1. Each connecting rod 5 has a sliding cavity 9 inside, and the spring 10 is fixedly connected inside the sliding cavity 9. The inner rod 6 is slidably connected inside the sliding cavity 9. The top of the mixing tank 1 is fixedly connected to the feeding pipe 19. The mixing tank 1 is equipped with a generator 16 outside. The generator 16 is equipped with an electric heating tube 18 outside. The electric heating tube 18 is installed in the mounting groove 17.

[0026] After the polyester film raw material is injected into the mixing tank 1 through the feeding pipe 19, the generator 16 is powered on, and the electric heating tube 18 in the mounting slot 17 heats the mixing tank 1. At the same time, the motor 2 starts, driving the rotating rod 3 to rotate, which in turn drives the stirring rod 8 and the connecting sleeve 4 to rotate together. The stirring rod 8 thoroughly mixes the raw material, while the connecting sleeve 4 drives the scraper 7 on the connecting rod 5 to rotate along the inner wall of the mixing tank 1, promptly scraping off the raw material adhering to the tank wall to ensure uniform mixing. The spring 10 in the sliding cavity 9, due to its elasticity, continuously pushes the inner rod 6 in the limiting ring 11, keeping the scraper 7 in close contact with the tank wall, maintaining efficient scraping even if wear occurs. The coordinated operation of multiple components quickly achieves the mixing of raw materials, significantly improving production efficiency.

[0027] Example 2: The difference between this example and Example 1 is that the bottom end of the rotating rod 3 is fixedly connected to the auger blade 12, the bottom of the mixing tank 1 is fixedly connected to the discharge pipe 13, and the auger blade 12 is rotatably connected inside the discharge pipe 13. At the same time, a valve 14 is provided outside the discharge pipe 13, an installation groove 17 is opened on the outer wall of the mixing tank 1, and a support base 15 is fixedly connected to the bottom of the mixing tank 1.

[0028] After valve 14 is opened, the rotating rod 3 rotates continuously, and the auger blade 12 on its bottom outer wall rotates synchronously. At this time, the uniformly mixed raw material is discharged outward through the discharge pipe 13. During the material discharge process, the continuous rotation of the auger blade 12 plays a key role. It can effectively propel the raw material forward and prevent the raw material from accumulating in the discharge pipe 13, thereby preventing the discharge pipe 13 from becoming blocked and greatly improving the overall working efficiency.

[0029] Working principle: When workers produce polyester film, the polyester film raw material is first added to the mixing tank 1 through the feeding pipe 19. The generator 16 is connected to a power source, causing the electric heating element 18 in the mounting slot 17 to heat the mixing tank 1. Simultaneously, the starting motor 2 drives the rotating rod 3 to rotate. As the rotating rod 3 rotates, it drives the stirring rod 8 and the connecting sleeve 4 to rotate. The stirring rod 8 begins to stir the raw material, and the rotating sleeve 4 drives the scraper 7 outside the connecting rod 5 to rotate, scraping the raw material from the inner wall of the mixing tank 1, ensuring more thorough mixing. The spring 10 inside cavity 9 continuously pushes the inner rod 6 inside the limiting ring 11 through elasticity, so that the scraper 7 on the inner rod 6 keeps in close contact with the inner wall of the mixing tank 1, preventing the scraper 7 from failing to keep in close contact with the inner wall of the mixing tank 1 due to wear. Through their cooperation, the raw materials are quickly stirred and mixed, improving work efficiency. When the valve 14 is opened, the rotating rod 3 will drive the auger blade 12 on the bottom outer wall to rotate during rotation. At this time, the mixed raw materials are discharged through the discharge pipe 13, and the auger blade 12 will continue to rotate to ensure that the raw materials do not get blocked in the discharge pipe 13, thus improving work efficiency.

[0030] All electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0031] It should be noted that in this paper, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations.

Claims

1. A mixing and heating device for polyester sheet production, characterized by: The device includes a mixing tank (1), a motor (2) is fixedly connected to the top of the mixing tank (1), a rotating rod (3) is fixedly connected to the output end of the motor (2), a pair of connecting sleeves (4) are fixedly connected to the outer wall of the rotating rod (3), a connecting rod (5) is fixedly connected to both sides of each connecting sleeve (4), a spring (10) is fixedly connected inside each connecting rod (5), a limit ring (11) is fixedly connected to the other end of each spring (10), an inner rod (6) is fixedly connected inside the limit ring (11), and a scraper (7) is fixedly connected to the other end of the inner rod (6).

2. The mixing and heating device for polyester sheet production according to claim 1, characterized in that: Multiple stirring rods (8) are fixedly connected to the middle outer wall of the rotating rod (3). The stirring rods (8) and the scraper (7) are rotatably connected inside the mixing tank (1), while the scraper (7) is in close contact with the inner wall of the mixing tank (1).

3. The mixing and heating device for polyester sheet production according to claim 2, characterized in that: The bottom end of the rotating rod (3) is fixedly connected to the auger blade (12), the bottom of the mixing tank (1) is fixedly connected to the discharge pipe (13), and the auger blade (12) is rotatably connected inside the discharge pipe (13), while a valve (14) is provided outside the discharge pipe (13).

4. The mixing and heating device for polyester sheet production according to claim 3, characterized in that: Each of the connecting rods (5) has a sliding cavity (9) inside, and a spring (10) is fixedly connected in the sliding cavity (9), and the inner rod (6) is slidably connected in the sliding cavity (9).

5. The mixing and heating device for polyester sheet production according to claim 4, characterized in that: The mixing tank (1) has an installation groove (17) on its outer wall. A generator (16) is installed outside the mixing tank (1). An electric heating tube (18) is installed outside the generator (16). The electric heating tube (18) is installed inside the installation groove (17).

6. The mixing and heating device for polyester film production according to claim 5, characterized in that: The mixing tank (1) is fixedly connected to the top of the feeding pipe (19), and the mixing tank (1) is fixedly connected to the bottom of the supporting base (15).

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