Powder loosening device for thermoplastic resin and processing aid

Abstract

The utility model discloses a powder loosening device for thermoplastic resin and processing aids, which comprises a powder bin, a feeding port is arranged at the upper end of the powder bin, a support is arranged at the upper end of the powder bin, a discharging port is arranged at the lower end of the powder bin, and a loosening device is arranged at the upper end of the powder bin and rotates in the powder bin. And a flow control device is arranged on the bracket and is positioned in the feed opening. The utility model belongs to the technical field of resin powder feeding, and particularly relates to a powder loosening device for thermoplastic resin and processing aids, which solves the problem that the flow is inconvenient to control when the thermoplastic resin and the processing aids are discharged in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of resin powder feeding, in particular to a powder loosening device for thermoplastic resin and processing aid. Background Art

[0002] It is well known that the production of plastic products by calendering is inevitably accompanied by the transportation of powder. Environmentally friendly and degradable thermoplastics such as PHA and PETG have been widely used. With the improvement of production efficiency, the powder used in processing PHA and PETG materials has poor fluidity and is easy to stick to the silo wall or form a blockage in the silo, affecting product quality and normal production.

[0003] After searching, the publication (announcement) number is: CN207058992U, which discloses a powder loosening device for thermoplastic resins and processing aids. This device improves the effect of preventing material adhesion through rotation, swinging and vibration of the silo, but there are still some shortcomings: the addition flow of the powder is not easy to control, and the loose powder can easily go out through the lower outlet. Therefore, improvement is needed. Utility Model Content

[0004] The technical problem to be solved by the utility model is that it is inconvenient to control the flow rate of traditional thermoplastic resins and processing aids during feeding.

[0005] In order to achieve the above functions, the technical solution adopted by the utility model is as follows: a powder loosening device for thermoplastic resins and processing aids, including a powder silo, a feeding port is provided at the upper end of the powder silo, a bracket is provided at the upper end of the powder silo, a discharge port is provided at the lower end of the powder silo, a loosening device is provided at the upper end of the powder silo and rotates in the powder silo, a flow control device is provided on the bracket and is located in the discharge port; the flow control device includes a hydraulic cylinder, the hydraulic cylinder is provided on the bracket, a connecting shaft is provided at the lower end of the hydraulic cylinder, a frustum is provided at the lower end of the connecting shaft, the frustum is provided in the discharge port, and the flow rate of powder discharge in the powder silo can be achieved by lifting and lowering the frustum.

[0006] Furthermore, the loosening device includes a motor, which is arranged at the upper end of the powder silo, and a gear 1 is provided at the output end of the motor. A rotating drum is rotatably provided in the powder silo, and the connecting shaft is located in the rotating drum. A gear 2 is provided at the upper end of the rotating drum and is meshed with the gear 1. A loosening tooth is provided at the lower part of the rotating drum, and the resin and additives in the powder silo can be broken up and loosened by the loosening teeth to avoid agglomeration.

[0007] Preferably, a mesh plate is provided at the lower end of the powder bin, and the rotating drum rotates on the mesh plate.

[0008] Preferably, a limiting sleeve is provided at the upper end of the powder bin, and the rotating drum rotates in the limiting sleeve and cannot move up and down.

[0009] Preferably, a window is provided on the side wall of the feed opening, through which the size of the gap between the frustum and the feed opening can be observed.

[0010] The utility model adopts the above structure to achieve the following beneficial effects:

[0011] 1. The utility model can realize flow control of thermoplastic resin and processing aids released from the powder bin by setting a flow control device, thereby avoiding the release of powder in the powder bin at one time.

[0012] 2. The utility model can realize the dispersion and transportation of the powder in the powder bin by arranging the loosening device to avoid agglomeration and blockage of the discharge port. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an overall stereogram of the powder loosening device for thermoplastic resin and processing aid of the utility model;

[0014] Figure 2 This is a front view of the internal structure of the powder loosening device for thermoplastic resin and processing aid of the utility model;

[0015] Figure 3 for Figure 2 Stereoscopic view of the middle cone;

[0016] Figure 4 for Figure 2 A three-dimensional view of the center screen.

[0017] Among them, 1. powder silo, 2. feeding port, 3. bracket, 4. discharge port, 5. loosening device, 6. flow control device, 7. hydraulic cylinder, 8. connecting shaft, 9. cone, 10. motor, 11. gear 1, 12. rotating drum, 13. gear 2, 14. loosening teeth, 15. mesh plate, 16. limit sleeve, 17. window. DETAILED DESCRIPTION

[0018] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figure 1-4 The utility model provides a powder loosening device for thermoplastic resin and processing aid, comprising a powder bin 1, a feeding port 2 is provided at the upper end of the powder bin 1, a bracket 3 is provided at the upper end of the powder bin 1, a discharge port 4 is provided at the lower end of the powder bin 1, a window 17 is provided on the side wall of the discharge port 4, and the size of the gap between the cone 9 and the discharge port 4 can be observed through the window 17, a loosening device 5 is provided at the upper end of the powder bin 1 and rotates in the powder bin 1, and a flow control device 6 is provided on the bracket 3 and is located in the discharge port 4;

[0021] like Figure 1-3 The flow control device 6 includes a hydraulic cylinder 7, which is arranged on the bracket 3. A connecting shaft 8 is provided at the lower end of the hydraulic cylinder 7. A frustum 9 is provided at the lower end of the connecting shaft 8. The frustum 9 is arranged in the discharge port 4. By lifting and lowering the frustum 9, the flow rate of powder discharge in the powder silo 1 can be achieved.

[0022] like Figure 1-2 The loosening device 5 includes a motor 10, which is arranged at the upper end of the powder silo 1. A gear 11 is arranged at the output end of the motor 10. A rotating drum 12 is rotatably arranged in the powder silo 1. A limiting sleeve 16 is arranged at the upper end of the powder silo 1. The rotating drum 12 rotates in the limiting sleeve 16 and cannot move up and down. A leakage screen 15 is arranged at the lower end of the powder silo 1. The rotating drum 12 rotates on the leakage screen 15. The connecting shaft 8 is located in the rotating drum 12. A gear 2 13 is arranged at the upper end of the rotating drum 12 and is meshed with the gear 11. A loosening tooth 14 is arranged at the lower part of the rotating drum 12. The resin and additives in the powder silo 1 can be loosened and dispersed by the loosening tooth 14 to avoid agglomeration.

[0023] During specific use, thermoplastic resin or processing aid is added to the powder bin 1 through the feeding port 2, and by starting the motor 10, the gear 11 meshes with the gear 2 13 to rotate, and the drum 12 rotates. The powder in the powder bin 1 can be broken up and loosened by the loosening teeth 14 to avoid its agglomeration. When the powder needs to be lowered, the hydraulic cylinder 7 is started, the connecting shaft 8 slides in the drum 12, and the cone 9 is pushed downward, and the space between the cone 9 and the discharge port 4 is gradually increased, so that the broken powder passes through the mesh plate 15 and is discharged through the space between the cone 9 and the inner wall of the discharge port 4. The space gap between the cone 9 and the discharge port 4 can be flexibly adjusted to achieve the purpose of controlling the powder discharge flow rate.

[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A powder aeration device for thermoplastic resin and processing aid, comprising a powder bin, wherein the upper end of the powder bin is provided with a feeding port, and wherein: The upper end of the powder bin is provided with a bracket, the lower end of the powder bin is provided with a feeding port, the upper end of the powder bin is provided with a loosening device which rotates in the powder bin, and the bracket is provided with a flow control device which is located in the feeding port.

2. The powder aeration device for thermoplastic resin and processing aid according to claim 1, characterized in that: The flow control device comprises a hydraulic cylinder, which is arranged on a bracket. A connecting shaft is arranged at the lower end of the hydraulic cylinder, and a frustum is arranged at the lower end of the connecting shaft. The frustum is arranged in a feeding port.

3. The powder aeration device for thermoplastic resin and processing aid according to claim 2, characterized in that: The loosening device includes a motor, which is arranged at the upper end of the powder bin, and a gear 1 is arranged at the output end of the motor. A rotating drum is rotatably arranged in the powder bin, and the connecting shaft is located in the rotating drum. A gear 2 is arranged at the upper end of the rotating drum and is meshed with the gear 1, and a loosening tooth is arranged at the lower part of the rotating drum.

4. The powder aeration device for thermoplastic resin and processing aid according to claim 3, characterized in that: A mesh plate is provided at the lower end of the powder bin, and the rotating drum rotates on the mesh plate.

5. The powder aeration device for thermoplastic resin and processing aid according to claim 4, characterized in that: A limiting sleeve is arranged at the upper end of the powder bin, and the rotating drum rotates in the limiting sleeve and cannot move up and down.

6. The powder aeration device for thermoplastic resin and processing aid according to claim 5, characterized in that: A window is arranged on the side wall of the feeding opening.

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