Discharging mechanism for polyester film production

Abstract

The utility model provides a discharging mechanism for polyester film production. The discharging mechanism comprises a mixing tank, a feeding port is fixedly connected to the lower portion of the mixing tank, a melting extrusion molding assembly is fixedly connected to the lower portion of the feeding port, a hollow stirring shaft is rotationally connected to one side of the mixing tank, and a discharging bin and an ion fan are fixedly connected to the upper portion of the mixing tank. One side of the discharging bin is fixedly connected with a feeding assembly, the air outlet end of the ion fan is fixedly connected with a three-way pipe, one end of the three-way pipe is fixedly connected with an electrostatic eliminating nozzle, one side of the electrostatic eliminating nozzle is fixedly connected to one end of the discharging bin, and the other end of the three-way pipe is fixedly connected with a gas rotating connector. Through the design of the ion fan and the static electricity removing nozzles, static electricity generated in the lifting and stirring process of plastic particles is effectively removed, particle caking is prevented, the static electricity removing effect is further enhanced through the gas nozzles in the hollow stirring shaft and the stirring blades, uniform mixing of the plastic particles is ensured, particle caking is prevented, and the service life of the plastic particles is prolonged. Therefore, the final quality of the product is improved.

Description

Technical Field

[0001] This utility model relates to the field of polyester film production technology, and in particular to a feeding mechanism for polyester film production. Background Technology

[0002] Polyester film, also known as PET film, is a type of polymer plastic film. It is made from polyethylene terephthalate (PET) through extrusion to form thick sheets, which are then processed using a biaxial stretching process. Polyester film is typically colorless, transparent, and glossy, possessing high rigidity, high hardness, high toughness, puncture resistance, abrasion resistance, high and low temperature resistance, chemical resistance, and excellent airtightness and preservation properties. During production, granular raw materials are mixed and then melt-extruded into film. However, during mixing, the plastic particles generate static electricity due to friction, which can lead to problems such as material adsorption and clumping, uneven mixing, and the risk of dust explosion, thus affecting the quality of the finished product.

[0003] A search revealed a Chinese patent publication number CN213227214U, which discloses a feeding device for producing hardened films. The device includes a main body with a cover snapped onto the top of the inner side of the main body. A heating fan is fixedly connected to the top of the inner side of the cover, and a heating resistor is provided at the bottom of the heating fan. A feed inlet is fixedly connected to one end of the top of the cover, and a feeding chamber is detachably connected to one end of the feed inlet. A conveyor belt is provided inside the feeding chamber.

[0004] To address the issue of the lack of static electricity removal from particulate raw materials in the aforementioned technologies, which leads to problems such as raw material adsorption, clumping, blockage, and uneven mixing, a feeding mechanism for polyester film production is proposed. Utility Model Content

[0005] In view of this, the present invention aims to provide a feeding mechanism for polyester film production to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial alternative.

[0006] The technical solution of this utility model embodiment is implemented as follows: It includes a mixing tank, a feeding port is fixedly connected to the bottom of the mixing tank, a melt extrusion assembly is fixedly connected to the bottom of the feeding port, a hollow stirring shaft is rotatably connected to one side of the mixing tank, a discharge chamber and an ion fan are fixedly connected to the top of the mixing tank, a feeding assembly is fixedly connected to one side of the discharge chamber, a three-way pipe is fixedly connected to the air outlet of the ion fan, an anti-static nozzle is fixedly connected to one end of the three-way pipe, one side of the anti-static nozzle is fixedly connected to one end of the discharge chamber, a gas rotary joint is fixedly connected to the other end of the three-way pipe, and the other end of the gas rotary joint is fixedly connected to the hollow stirring shaft.

[0007] In some embodiments, the feeding assembly is fixedly connected to a lifting pipe, a screw conveyor and a feeding frame. A lifting pipe is fixedly connected to one side of the feeding frame, and a discharge chamber is fixedly connected to one side of the lifting pipe. A discharge chamber is fixedly connected to one end of the screw conveyor, and the movable end of the screw conveyor is rotatably connected to the inside of the lifting pipe and the feeding frame.

[0008] In some embodiments, a plurality of stirring blades are fixedly connected to the lower end of the hollow stirring shaft, and a plurality of gas nozzles are opened at one end of the stirring blades.

[0009] In some embodiments, a drive gear ring and a drive gear are rotatably connected above the mixing tank, the top of the hollow stirring shaft is fixedly connected to the drive gear ring, the drive gear ring and the drive gear mesh with each other, and a stirring motor is fixedly connected above the mixing tank, with the power output end of the stirring motor fixedly connected to the drive gear.

[0010] In some embodiments, a first vibrating plate and a second vibrating plate are rotatably connected inside the discharge chamber.

[0011] In some embodiments, a plurality of swing gears are rotatably connected to the outside of the discharge chamber, and the plurality of swing gears are respectively rotatably connected to one end of the vibrating plate one or the vibrating plate two.

[0012] In some embodiments, a swing bracket is slidably connected to one side of the discharge chamber. The swing bracket has a slot inside and racks are fixedly connected to both sides of the swing bracket. One side of the rack meshes with a corresponding swing gear.

[0013] In some embodiments, a swing motor is fixedly connected above the mixing tank, a connecting rod is fixedly connected to the power output end of the swing motor, a drive roller is rotatably connected to one end of the connecting rod, and one end of the drive roller is movably connected to a slot inside the swing bracket.

[0014] The present invention has the following advantages due to the adoption of the above technical solution:

[0015] 1. A feeding mechanism for polyester film production, which effectively removes static electricity generated during the lifting and stirring of plastic particles through the design of an ion fan and an anti-static nozzle, preventing particle agglomeration. The gas nozzles in the hollow stirring shaft and stirring blades further enhance the anti-static effect, ensuring uniform mixing of plastic particles and preventing particle agglomeration, thereby improving the final quality of the product.

[0016] 2. A feeding mechanism for polyester film production, which, through a spiral conveyor and a feeding assembly, allows workers to automatically lift and feed materials simply by placing them into a low feeding frame, eliminating the need for working at heights and greatly improving processing safety.

[0017] 3. A feeding mechanism for polyester film production, which realizes the up-and-down swinging function of the vibrating plates through vibrating plate one and vibrating plate two, as well as the swinging bracket and swinging gear mechanism driven by the swinging motor, slows down the falling speed of plastic particles, and allows the airflow with positive and negative ions to mix better with the plastic particles, thereby further improving the static elimination effect.

[0018] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is the main view of the present invention.

[0021] Figure 2 This is a structural diagram of the internal structure of the mixing tank of this utility model;

[0022] Figure 3 This is a cross-sectional view of the lifting tube of this utility model;

[0023] Figure 4 This is a structural diagram of the swing motor installation of this utility model;

[0024] Figure 5 This is a structural diagram of the stirring paddle of this utility model.

[0025] Figure label:

[0026] 1. Mixing tank; 2. Melt extrusion assembly; 3. Elevator pipe; 4. Discharge chamber; 5. Feed port; 6. Screw conveyor assembly; 7. Feed frame; 8. Drive gear ring; 9. Hollow stirring shaft; 10. Drive gear; 11. Stirring motor; 12. Gas rotary joint; 13. T-joint; 14. Ionizing fan; 15. Antistatic nozzle; 16. Vibrating plate one; 17. Vibrating plate two; 18. Swing gear; 19. Rack; 20. Swing support; 21. Swing motor; 22. Connecting rod; 23. Drive roller; 24. Stirring blade; 25. Gas nozzle. Detailed Implementation

[0027] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0028] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0029] Example 1:

[0030] like Figure 1-5 As shown, a feeding mechanism for polyester film production includes a mixing tank 1, which is used to mix plastic granules evenly. A feeding port 5 is fixedly connected to the bottom of the mixing tank 1, and a melt extrusion assembly 2 is fixedly connected to the bottom of the feeding port 5. The melt extrusion assembly 2 can melt and extrude the mixed granules. The working principle of the melt extrusion assembly 2 is the same as that of the prior art, and will not be described in detail here. A hollow stirring shaft 9 is rotatably connected to one side of the mixing tank 1. A discharge chamber 4 and an ion fan 14 are fixedly connected to the top of the mixing tank 1. The ion fan 14 neutralizes the static charge on the surface of the object by blowing out a stream of positive and negative ions, thereby achieving the purpose of eliminating static electricity. A feeding assembly is fixedly connected to one side of the discharge chamber 4. A three-way pipe 13 is fixedly connected to the air outlet end of the ion fan 14. An antistatic nozzle 15 is fixedly connected to one end of the three-way pipe 13. One side of the antistatic nozzle 15 is fixedly connected to one end of the discharge chamber 4. A gas rotary joint 12 is fixedly connected to the other end of the three-way pipe 13. The other end of the gas rotary joint 12 is fixedly connected to the hollow stirring shaft 9.

[0031] During use, various plastic granules are lifted and fed into the mixing tank 1 through the feeding component for stirring. During this process, static electricity is generated between the plastic granules due to lifting friction. As these granules fall into the mixing tank 1, the antistatic nozzle 15 at the top sprays out a gas flow with positive and negative ions to remove static electricity and prevent the plastic granules from clumping together, thereby improving the final quality of the product.

[0032] At the same time, the airflow carrying positive and negative ions will enter the mixing tank 1 from the hollow stirring shaft 9 to remove static electricity from the plastic particles being stirred, further preventing the plastic particles from clumping due to static electricity.

[0033] In this embodiment, the feeding assembly is fixedly connected to the lifting pipe 3, the screw conveyor 6 and the feeding frame 7. The lifting pipe 3 is fixedly connected to one side of the feeding frame 7, and the lifting pipe 3 is fixedly connected to the discharge chamber 4 on one side. The discharge chamber 4 is fixedly connected to one end of the screw conveyor 6, and the movable end of the screw conveyor 6 is rotatably connected to the inside of the lifting pipe 3 and the feeding frame 7.

[0034] The screw conveyor component 6 can use the rotating auger to move the plastic granules upward for feeding. Workers only need to put the material into the feeding box 7 at the lower position for mixing and feeding, which eliminates the need to climb to a height and improves the safety of processing.

[0035] In this embodiment, a plurality of stirring blades 24 are fixedly connected to the lower end of the hollow stirring shaft 9. A plurality of gas nozzles 25 are opened at one end of the stirring blades 24. The stirring blades 24 and the hollow stirring shaft 9 are also hollow structures. Gas enters the stirring blades 24 from the hollow stirring shaft 9. In this way, the airflow with positive and negative ions can be sprayed out while stirring, removing the static electricity generated by the friction of plastic particles.

[0036] In this embodiment, a drive gear ring 8 and a drive gear 10 are rotatably connected above the mixing tank 1. The top of the hollow stirring shaft 9 is fixedly connected to the drive gear ring 8. The drive gear ring 8 and the drive gear 10 mesh with each other. A stirring motor 11 is fixedly connected above the mixing tank 1. The power output end of the stirring motor 11 is fixedly connected to the drive gear 10. The drive gear 10 can drive the drive gear ring 8 to rotate, thereby achieving stirring and mixing.

[0037] In this embodiment: During use, various plastic particles are lifted and put into the mixing tank 1 by the feeding component for stirring. During this process, static electricity is generated between the plastic particles due to lifting friction. At the same time as these particles fall into the mixing tank 1, the antistatic nozzle 15 at the upper angle sprays out a gas flow with positive and negative ions to remove static electricity and prevent the plastic particles from clumping together, thereby improving the final quality of the product.

[0038] At the same time, the airflow carrying positive and negative ions will enter the mixing tank 1 from the hollow stirring shaft 9 to remove static electricity from the plastic particles being stirred, and further prevent the plastic particles from clumping due to static electricity.

[0039] The screw conveyor 6 can use the rotating auger to move the plastic granules upward for feeding. Workers only need to put the material into the feeding box 7 at the lower position for mixing and feeding, which eliminates the need to climb to a height and improves the safety of processing.

[0040] The stirring blade 24 and the hollow stirring shaft 9 are both hollow structures. Gas enters the stirring blade 24 from the hollow stirring shaft 9, so that the airflow with positive and negative ions can be sprayed out while stirring, removing the static electricity generated by the friction of plastic particles.

[0041] The drive gear 10 can drive the drive gear ring 8 to rotate, thereby achieving stirring and mixing.

[0042] Example 2:

[0043] A feeding mechanism for polyester film production is provided in this embodiment, which is improved from Embodiment 1 as follows: Figure 1-5 As shown,

[0044] In this embodiment, the discharge chamber 4 is rotatably connected with a first vibrating plate 16 and a second vibrating plate 17. The first vibrating plate 16 and the second vibrating plate 17 can vibrate the plastic particles falling from above, slow down their falling speed, and allow the airflow with positive and negative ions to mix better with the plastic particles, thereby achieving a better static electricity removal effect.

[0045] In this embodiment, a plurality of swing gears 18 are rotatably connected to the outside of the discharge chamber 4. The plurality of swing gears 18 are rotatably connected to one end of the first vibration plate 16 or the second vibration plate 17. A swing bracket 20 is slidably connected to one side of the discharge chamber 4. The swing bracket 20 has a slot inside. A rack 19 is fixedly connected to both sides of the swing bracket 20. One side of the rack 19 meshes with the corresponding swing gear 18.

[0046] A swing motor 21 is fixedly connected to the top of the mixing tank 1. A connecting rod 22 is fixedly connected to the power output end of the swing motor 21. A drive roller 23 is rotatably connected to one end of the connecting rod 22. One end of the drive roller 23 is movably connected to the slot inside the swing bracket 20.

[0047] When the swing motor 21 is working, it can drive the connecting rod 22 and the drive roller 23 to make circular motion. Then, the drive roller 23 squeezes the slot inside the swing bracket 20, causing the swing bracket 20 to make up-down reciprocating motion. This allows the racks 19 on both sides to move up and down, and then drives the first vibration plate 16 and the second vibration plate 17 to swing up and down through the swing gear 18.

[0048] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A material feeding mechanism for polyester film production, comprising a mixing tank (1), characterized in that: A feeding port (5) is fixedly connected to the bottom of the mixing tank (1), and a melt extrusion assembly (2) is fixedly connected to the bottom of the feeding port (5). A hollow stirring shaft (9) is rotatably connected to one side of the mixing tank (1). A discharge chamber (4) and an ion blower (14) are fixedly connected to the top of the mixing tank (1). A feeding assembly is fixedly connected to one side of the discharge chamber (4). A three-way pipe (13) is fixedly connected to the air outlet end of the ion blower (14). An antistatic nozzle (15) is fixedly connected to one end of the three-way pipe (13). One side of the antistatic nozzle (15) is fixedly connected to one end of the discharge chamber (4). A gas rotary joint (12) is fixedly connected to the other end of the three-way pipe (13). The other end of the gas rotary joint (12) is fixedly connected to the hollow stirring shaft (9).

2. The blanking mechanism for producing a polyester film according to claim 1, wherein: The feeding assembly is fixedly connected to a lifting pipe (3), a screw conveyor (6) and a feeding frame (7). The lifting pipe (3) is fixedly connected to one side of the feeding frame (7), and the lifting pipe (3) is fixedly connected to the discharge chamber (4) on one side. The discharge chamber (4) is fixedly connected to one end of the screw conveyor (6), and the movable end of the screw conveyor (6) is rotatably connected to the inside of the lifting pipe (3) and the feeding frame (7).

3. The film production material feeding mechanism according to claim 2, characterized in that: The hollow stirring shaft (9) is fixedly connected to a plurality of stirring blades (24) at its lower end, and a plurality of gas nozzles (25) are opened at one end of the stirring blades (24).

4. The film production material feeding mechanism according to claim 3, characterized in that: A drive gear ring (8) and a drive gear (10) are rotatably connected above the mixing tank (1). The top of the hollow stirring shaft (9) is fixedly connected to the drive gear ring (8). The drive gear ring (8) and the drive gear (10) mesh with each other. A stirring motor (11) is fixedly connected above the mixing tank (1). The power output end of the stirring motor (11) is fixedly connected to the drive gear (10).

5. The film production material feeding mechanism according to claim 1, characterized in that: The discharge chamber (4) is rotatably connected to a first vibrating plate (16) and a second vibrating plate (17).

6. The film production material feeding mechanism according to claim 5, wherein: The discharge chamber (4) is rotatably connected to a plurality of swing gears (18), which are respectively rotatably connected to one end of the first vibration plate (16) or the second vibration plate (17).

7. The film production material feeding mechanism according to claim 6, characterized in that: A swing bracket (20) is slidably connected to one side of the discharge chamber (4). The swing bracket (20) has a slot inside. A rack (19) is fixedly connected to both sides of the swing bracket (20). One side of the rack (19) meshes with the corresponding swing gear (18).

8. The film production material feeding mechanism according to claim 7, characterized in that: A swing motor (21) is fixedly connected above the mixing tank (1). A connecting rod (22) is fixedly connected to the power output end of the swing motor (21). A drive roller (23) is rotatably connected to one end of the connecting rod (22). One end of the drive roller (23) is movably connected to a slot inside the swing bracket (20).

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