Extruder for producing environment-friendly thermosetting powder coating

Abstract

The utility model discloses an extruder for producing an environment-friendly thermosetting powder coating, which relates to the technical field of extruders, and comprises a base, support legs are arranged at the lower end of the base, a screw conveyer is arranged at the upper end of the base, a material receiving sleeve is arranged at one end of the screw conveyer, and a screw rod is arranged at the other end of the screw conveyer. A forming sleeve is arranged at one end of the material receiving sleeve, a heating sleeve is arranged outside the forming sleeve, an extrusion head is arranged at one end of the forming sleeve, a material receiving pipe is arranged at the upper end of the material receiving sleeve, a material receiving hopper is arranged at the upper end of the material receiving pipe, and a feeding assembly is arranged at the upper end of the material receiving hopper. The feeding assembly comprises a first discharging box and a second discharging box. According to the scheme, the problems that according to an existing extruder, discharging is conducted through a large-capacity funnel, when raw materials in various colors are discharged, discharging needs to be conducted after mixing, time and labor are wasted, discharging is not uniform easily, and the forming quality is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of extruder technology, specifically to an environmentally friendly extruder for producing thermosetting powder coatings. Background Technology

[0002] An extruder is an industrial device that uses a screw or plunger to pressurize, shear, and heat materials, plasticize them, and continuously extrude them into shapes. The production of thermosetting powder coatings requires the use of an extruder.

[0003] For example, the Chinese authorized patent (screw extruder) with announcement number CN219600342U includes a shell, a feed hopper, and two screws. The shell contains a figure-eight shaped inner cavity to accommodate the two screws. The feed hopper is located at the upper end of the shell, and a discharge chamber is located at one end of the shell. A partition is provided between the discharge chamber and the figure-eight shaped inner cavity. Multiple through holes are provided on the partition. The front end of the screw penetrates the partition, and the rear end penetrates the shell. A scraper is provided at the front end of the screw. The scraper includes a sleeve, a scraper blade, and a baffle. Compared with existing technologies, when material is extruded through the through holes of the partition, it is promptly scraped off by the scraper blade. When material accumulates outside the partition, the baffle can separate the material, preventing it from accumulating and sticking near the partition, reducing interference with the scraper blade, and improving the scraping effect.

[0004] However, existing extruders use a large-capacity funnel for feeding materials. When feeding multiple colored raw materials, they need to be mixed before feeding, which is time-consuming, labor-intensive, and prone to uneven feeding, affecting the molding quality. Therefore, it does not meet the current needs. In response, we have proposed an environmentally friendly extruder for the production of thermosetting powder coatings. Utility Model Content

[0005] The purpose of this invention is to provide an environmentally friendly extruder for the production of thermosetting powder coatings, in order to solve the problems mentioned in the background art, where existing extruders use a large-capacity funnel for feeding materials. When feeding multiple colored raw materials, they need to be mixed before feeding, which is time-consuming, labor-intensive, and prone to uneven feeding, affecting the molding quality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an environmentally friendly extruder for producing thermosetting powder coatings, comprising: a base, a support leg at the lower end of the base, a screw conveyor at the upper end of the base, a receiving sleeve at one end of the screw conveyor, a forming sleeve at one end of the receiving sleeve, a heating sleeve outside the forming sleeve, an extrusion head at one end of the forming sleeve, a receiving pipe at the upper end of the receiving sleeve, a receiving hopper at the upper end of the receiving pipe, and a feeding assembly at the upper end of the receiving hopper.

[0007] Preferably, the feeding assembly includes a first feeding box and a second feeding box, both of which have a storage chamber inside, and a discharge port is provided on one side surface of the bottom of the storage chamber.

[0008] Preferably, both the top surfaces of one side of the first and second feeding boxes are welded with anti-fall baffles, and the anti-fall baffles are arc-shaped.

[0009] Preferably, a connecting seat is provided between the first feeding box and the second feeding box near the bottom. A base plate is provided on the lower surface of the connecting seat, and the base plate is welded and fixed to the connecting seat, the first feeding box and the second feeding box. A feeding port is provided at the center of the lower surface of the base plate, and the feeding port and the discharge port are interconnected.

[0010] Preferably, fixing plates are welded to the bottom edge of the base plate and the top edge of the receiving hopper, and multiple fixing plates are provided, with two stacked fixing plates fixed by external bolts and nuts.

[0011] Preferably, a control box is provided at the front end of the support leg, and a controller is provided at the upper end of one side of the control box.

[0012] Preferably, the heating jacket is provided with a protective cover, which is semi-circular in shape, and the lower surface of the protective cover is welded and fixed to the base.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) This utility model classifies different materials into the storage chambers of the first and second feeding boxes, and then discharges them from the discharge port to collect and discharge them at the discharge port, so as to achieve uniform mixing of different materials. It does not require mixing with a mixing device in advance or external force, thus improving flexibility and convenience. It solves the problem that the existing extruders use a large-capacity funnel for feeding, and when feeding multiple colored raw materials, they need to be mixed before feeding, which is time-consuming and labor-intensive, and it is easy to have uneven feeding, which affects the molding quality.

[0015] (2) By welding anti-falling baffles on the top surface of one side of the first and second feeding boxes, and the anti-falling baffles are arc-shaped, the materials are blocked by the anti-falling baffles during feeding to prevent them from scattering. 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 diagram of the feeding assembly structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the equiaxial structure of the feeding assembly of this utility model;

[0019] Figure 4 This is a bottom view of the feeding assembly of this utility model;

[0020] In the diagram: 1. Base; 2. Support leg; 3. Control box; 4. Controller; 5. Screw conveyor; 6. Forming sleeve; 7. Receiving sleeve; 8. Heating sleeve; 9. Extrusion head; 10. Protective cover; 11. Receiving pipe; 12. Receiving hopper; 13. Feeding assembly; 14. First feeding box; 15. Second feeding box; 16. Connecting seat; 17. Base plate; 18. Fixing plate; 19. Anti-fall baffle; 20. Discharge port; 21. Storage chamber; 22. Discharge outlet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Please see Figure 1-4 This utility model provides an embodiment of an environmentally friendly thermosetting powder coating production extruder, comprising: a base 1, a support leg 2 at the lower end of the base 1, a screw conveyor 5 at the upper end of the base 1, a receiving sleeve 7 at one end of the screw conveyor 5, a forming sleeve 6 at one end of the receiving sleeve 7, a heating sleeve 8 outside the forming sleeve 6, an extrusion head 9 at one end of the forming sleeve 6, a receiving pipe 11 at the upper end of the receiving sleeve 7, a receiving hopper 12 at the upper end of the receiving pipe 11, a feeding assembly 13 at the upper end of the receiving hopper 12, a control box 3 at the front end of the support leg 2, a controller 4 at the upper end of one side of the control box 3, and the feeding assembly 13 including a first feeding box 14 and a second feeding box 15. The first feeding box 14 and the second feeding box 15 are both provided with a storage chamber 21. The bottom side surface of the storage chamber 21 is provided with a discharge port 20. A connecting seat 16 is provided between the first feeding box 14 and the second feeding box 15 near the bottom. A bottom plate 17 is provided on the lower surface of the connecting seat 16. The bottom plate 17 is welded and fixed to the connecting seat 16, the first feeding box 14 and the second feeding box 15. A feeding port 22 is provided at the center of the lower surface of the bottom plate 17. The feeding port 22 communicates with the discharge port 20. Fixing plates 18 are welded to the bottom edge of the bottom plate 17 and the top edge of the receiving hopper 12. Multiple fixing plates 18 are provided. Two stacked fixing plates 18 are fixed by external bolts and nuts.

[0023] The feeding assembly 13 is installed on the receiving hopper 12. During installation, two stacked fixing plates 18 are fixed by external bolts and nuts to connect the feeding assembly 13 to the receiving hopper 12. Then, different materials are classified and enter the storage chambers 21 of the first discharge box 14 and the second discharge box 15. Then, the materials are discharged from the discharge port 20 and collected at the discharge port 22 to achieve uniform mixing of different materials. There is no need to use a mixing device in advance or rely on external force, which improves flexibility and convenience.

[0024] After being fed, the material enters the receiving sleeve 7 through the receiving hopper 12 and receiving pipe 11. The environmentally friendly thermosetting powder coating is transported by the screw conveyor 5 and enters the forming sleeve 6. It is heated and melted by the heating sleeve 8. After melting, the extrusion pressure is conveyed by the screw conveyor 5 to extrude the material from the extrusion head 9.

[0025] The top surface of one side of the first feeding box 14 and the second feeding box 15 are both welded with anti-fall baffles 19, and the anti-fall baffles 19 are arc-shaped. When feeding, the anti-fall baffles 19 are used to block the material and prevent it from scattering.

[0026] The heating jacket 8 is provided with a protective cover 10, which is semi-circular in shape, and the lower surface of the protective cover 10 is welded and fixed to the base 1. The protective cover 10 protects the heating jacket 8 and improves safety.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An environmentally friendly extruder for producing thermosetting powder coatings, comprising a base (1), characterized in that: The lower end of the base (1) is provided with a support leg (2), the upper end of the base (1) is provided with a screw conveyor (5), one end of the screw conveyor (5) is provided with a receiving sleeve (7), one end of the receiving sleeve (7) is provided with a forming sleeve (6), the outside of the forming sleeve (6) is provided with a heating sleeve (8), one end of the forming sleeve (6) is provided with an extrusion head (9), the upper end of the receiving sleeve (7) is provided with a receiving pipe (11), the upper end of the receiving pipe (11) is provided with a receiving hopper (12), and the upper end of the receiving hopper (12) is provided with a feeding assembly (13).

2. The environmentally friendly extruder for producing thermosetting powder coatings according to claim 1, characterized in that: The feeding assembly (13) includes a first feeding box (14) and a second feeding box (15). The first feeding box (14) and the second feeding box (15) are both provided with a storage cavity (21). The bottom side surface of the storage cavity (21) is provided with a discharge port (20).

3. The environmentally friendly extruder for producing thermosetting powder coatings according to claim 2, characterized in that: The top surface of one side of the first feeding box (14) and the second feeding box (15) is welded with an anti-falling baffle (19), and the anti-falling baffle (19) is arc-shaped.

4. The environmentally friendly extruder for producing thermosetting powder coatings according to claim 2, characterized in that: A connecting seat (16) is provided between the first feeding box (14) and the second feeding box (15) near the bottom. A base plate (17) is provided on the lower surface of the connecting seat (16), and the base plate (17) is welded and fixed to the connecting seat (16), the first feeding box (14) and the second feeding box (15). A feeding port (22) is provided at the center of the lower surface of the base plate (17), and the feeding port (22) communicates with the discharge port (20).

5. The environmentally friendly extruder for producing thermosetting powder coatings according to claim 4, characterized in that: Fixing plates (18) are welded to the bottom edge of the base plate (17) and the top edge of the receiving hopper (12), and multiple fixing plates (18) are provided, and two stacked fixing plates (18) are fixed by external bolts and nuts.

6. The environmentally friendly extruder for producing thermosetting powder coatings according to claim 1, characterized in that: A control box (3) is provided at the front end of the support leg (2), and a controller (4) is provided at the upper end of one side of the control box (3).

7. The environmentally friendly extruder for producing thermosetting powder coatings according to claim 1, characterized in that: The heating sleeve (8) is provided with a protective cover (10) on its outside. The protective cover (10) is semi-circular and the lower surface of the protective cover (10) is welded and fixed to the base (1).

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