Spiral extrusion device for low-temperature curing powder coating
By designing a low-temperature curing powder coating spiral extrusion device with a detachable mixing tube and a movable water spray head, the problem of raw material adhesion was solved, the equipment life was extended, and the work efficiency was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG BAOLILAI IND CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-21
AI Technical Summary
Existing low-temperature curing powder coating screw extruders have raw materials that tend to adhere to the equipment after use, affecting work efficiency and equipment lifespan.
A low-temperature curing powder coating spiral extrusion device was designed, comprising a detachable stirring tube, a movable water spray head, and a support rod structure. By installing the detachable stirring tube and the movable water spray head on the support base, the stirring blades can be quickly cleaned, preventing raw material adhesion.
This effectively prevents raw materials from adhering to the equipment, extends the equipment's service life, and improves work efficiency.
Smart Images

Figure CN224145327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coating extrusion devices, and in particular to a low-temperature curing powder coating spiral extrusion device. Background Technology
[0002] Low-temperature curing powder coatings are powder coatings that can cure at relatively low temperatures, typically between 120℃ and 150℃, with a curing time of approximately 10-20 minutes. The main advantages of this type of coating include faster production speeds on automated production lines, increased production efficiency, energy savings, lower costs, and expanded coating application range.
[0003] The production process of powder coatings includes steps such as mixing, melting, crushing, sieving, and packaging. Melting involves heating and melting the mixture to ensure thorough mixing of the components. Currently, screw extruders are used in the coating melting process. Therefore, cleaning the screw extruder after use is crucial. If raw materials adhere to or stick to the equipment, it will affect subsequent use, reduce work efficiency, and shorten the equipment's lifespan. Utility Model Content
[0004] The purpose of this invention is to provide a low-temperature curing powder coating spiral extrusion device, which avoids the situation of raw materials adhering to the equipment, extends the service life of the equipment, and improves work efficiency.
[0005] To achieve the above objectives, a low-temperature curing powder coating spiral extrusion device is provided, comprising a support base and a heating plate. A support rod is fixedly connected to the middle of the bottom top of the support base. A second groove is formed in the middle of the top of the support rod. An insertion plate is fixedly connected to the inner rear wall of the second groove. A roller is rotatably connected to the middle front of the insertion plate. Spiral stirring blades are arranged on the circumference of the roller. A stirring tube is inserted into the inside of the second groove. An insertion through hole is formed in the middle of the rear side of the stirring tube. The insertion through hole is inserted into the spiral stirring blades. Heating plates are arranged at the four corners inside the stirring tube. A water spray head is arranged above the stirring tube. A second through hole is formed at the bottom of the support rod.
[0006] According to the aforementioned low-temperature curing powder coating spiral extrusion device, the left and right sidewalls of the second groove are symmetrically provided with second insertion slots, the left and right sides of the stirring tube are symmetrically fixedly connected with insertion rods, the insertion rods are inserted into the second insertion slots, and the bottom rear end of the stirring tube is provided with a material injection port.
[0007] According to the aforementioned low-temperature curing powder coating spiral extrusion device, threaded holes are provided at both the upper and lower ends of the front side of the second insertion groove, and a fixing plate is fixedly connected to the front end of the insertion rod. A first through hole is provided at the top and bottom ends of the front side of the fixing plate.
[0008] According to the aforementioned low-temperature curing powder coating spiral extrusion device, a screw is provided on the front side of the first through hole, the screw is inserted into the first through hole and threadedly connected to the threaded hole.
[0009] According to the aforementioned low-temperature curing powder coating spiral extrusion device, a first motor is fixedly connected to the middle of the rear side of the support rod, and the drive end of the first motor is fixedly connected to the rear end of the roller.
[0010] According to the aforementioned low-temperature curing powder coating spiral extrusion device, a fixed rod is fixedly connected to the middle of the top and bottom of the support base. A first groove is provided at the bottom of the fixed rod. A threaded rod is rotatably connected inside the first groove. A threaded block is threadedly connected to the circumference of the threaded rod. An electric telescopic rod is fixedly connected to the bottom end of the threaded block. A connecting block is fixedly connected to the bottom end of the electric telescopic rod. The bottom end of the connecting block is fixedly connected to the top of the water spray head. A water pipe is provided on the right side of the connecting block.
[0011] According to the aforementioned low-temperature curing powder coating spiral extrusion device, a first insertion groove is provided on the top of the front side of the bottom end of the support base. The top of the first insertion groove communicates with a second through hole, and a water tank is inserted into the inside of the first insertion groove.
[0012] According to the aforementioned low-temperature curing powder coating spiral extrusion device, a second motor is fixedly connected to the front end of the fixed rod, and the drive end of the second motor is fixedly connected to the front end of the threaded rod.
[0013] The above-mentioned solution has the following beneficial effects:
[0014] This invention features a detachable stirring tube, a movable water spray head, a second through hole, and a support rod. The support rod is mounted on a support base, and the detachable stirring tube is installed inside the support rod. The stirring tube is inserted into a spiral stirring blade. A water spray head that can move back and forth is installed on the top of the support base for cleaning the stirring blade. A second through hole is opened at the bottom of the support rod to drain cleaning wastewater into a water tank below. After use, the equipment can be directly cleaned, and the stirring tube can be replaced and cleaned in a timely manner. This prevents raw materials from adhering to the equipment, extends the service life of the equipment, and improves work efficiency.
[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0017] Figure 1This is a three-dimensional front view of a spiral extrusion device for low-temperature curing powder coating according to this utility model;
[0018] Figure 2 This is a rear three-dimensional view of a low-temperature curing powder coating spiral extrusion device according to the present invention.
[0019] Figure 3 This is a bottom view of the three-dimensional structure of a low-temperature curing powder coating spiral extrusion device according to the present invention;
[0020] Figure 4 This is a three-dimensional, disassembled side view of a low-temperature curing powder coating spiral extrusion device according to this utility model;
[0021] Figure 5 This is a three-dimensional, disassembled front view of a low-temperature curing powder coating spiral extrusion device according to this utility model;
[0022] Figure 6 This is a detailed view of the stirring tube of a low-temperature curing powder coating spiral extrusion device according to this utility model.
[0023] Legend:
[0024] 1. Support base; 2. Support rod; 3. Insert plate; 4. Roller shaft; 5. Spiral mixing blade; 6. First motor; 7. Mixing tube; 8. Insert through hole; 9. Insert rod; 10. Fixing plate; 11. First through hole; 12. Screw; 13. Heating plate; 14. Threaded hole; 15. Second through hole; 16. First insert groove; 17. Water tank; 18. Fixing rod; 19. First groove; 20. Threaded rod; 21. Second motor; 22. Threaded block; 23. Electric telescopic rod; 24. Connecting block; 25. Water pipe; 26. Spray head; 27. Second groove; 28. Second insert groove; 29. Injection port. Detailed Implementation
[0025] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0026] Reference Figure 1-6This utility model discloses a low-temperature curing powder coating spiral extrusion device, which includes a support base 1 and a heating plate 13. The heating plate 13 is selected for use in melting powder coatings and belongs to the prior art. Its size can be changed according to actual conditions. A support rod 2 is fixedly connected to the middle of the bottom top of the support base 1. A second groove 27 is opened in the middle of the top of the support rod 2. An insertion plate 3 is fixedly connected to the inner wall of the rear side of the second groove 27. A roller shaft 4 is rotatably connected to the middle of the front end of the insertion plate 3. Spiral stirring blades 5 are arranged on the circumference of the roller shaft 4. A stirring tube 7 is inserted into the inside of the second groove 27. The stirring tube 7 is designed to be easy to disassemble and replace, easy to clean, and easy to maintain. An insertion through hole 8 is opened in the middle of the rear side of the stirring tube 7. The insertion through hole 8 is inserted into the spiral stirring blade 5. Heating plates 13 are arranged at the four corners inside the stirring tube 7. A water spray head 26 is arranged above the stirring tube 7. A second through hole 15 is opened at the bottom of the support rod 2.
[0027] The left and right sidewalls of the second groove 27 are symmetrically provided with second insertion slots 28. Insertion rods 9 are symmetrically fixedly connected to the left and right sides of the stirring tube 7. The insertion rods 9 are inserted into the second insertion slots 28. The bottom rear end of the stirring tube 7 is provided with a material inlet 29, which is the interface for connecting the raw material injection. The upper and lower ends of the front side of the second insertion slot 28 are provided with threaded holes 14. The front end of the insertion rod 9 is fixedly connected with a fixing plate 10. The top and bottom ends of the front side of the fixing plate 10 are provided with first through holes 11. The front side of the first through hole 11 is provided with a screw 12, which is inserted into the first through hole 11 and threadedly connected to the threaded hole 14. The middle of the rear side of the support rod 2 is fixedly connected with a first motor 6. The drive end of the first motor 6 is fixedly connected to the rear end of the roller 4. The middle of the top and bottom of the support base 1 is fixedly connected with a fixing rod 18. The bottom of the fixing rod 18 is provided with a first groove 19. The first groove 19 is rotatably connected to a threaded rod 20. A threaded block 22 is threadedly connected to the circumference of the threaded rod 20. An electric telescopic rod 23 is fixedly connected to the bottom end of the threaded block 22. A connecting block 24 is fixedly connected to the bottom end of the electric telescopic rod 23. The bottom end of the connecting block 24 is fixedly connected to the top end of the spray head 26. A water pipe 25 is provided on the right side of the connecting block 24. The water pipe 25 is connected to the water pump and water tank to form an integrated system. It is not very limited in terms of working environment, so it is not shown in detail, but it can be understood based on common sense. A first insertion groove 16 is opened on the top of the front side of the bottom end of the support base 1. The top of the first insertion groove 16 communicates with the second through hole 15. A water tank 17 is inserted into the inside of the first insertion groove 16. A second motor 21 is fixedly connected to the front end of the fixing rod 18. The drive end of the second motor 21 is fixedly connected to the front end of the threaded rod 20.
[0028] Working principle: The stirring tube 7 is inserted into the second groove 27 in the support rod 2, and the spiral stirring blade 5 is inserted into the insertion through hole 8 inside the stirring tube 7. The rear end of the stirring tube 7 is tightly inserted into the insertion plate 3. The front side of the stirring tube 7 is tightened with the screw 12 and the threaded hole 14. Then, the raw material is injected into it through the injection port 29. The heating plate 13 heats it. Then, the first motor 6 drives the spiral stirring blade 5 to rotate, and the molten raw material is spirally extruded to the front end. After the raw material is processed, the stirring tube 7 is disassembled. The electric telescopic rod 23 lowers the water spray head 26 downward and cleans the spiral stirring blade 5 from back to front. The cleaning wastewater leaks into the water receiving tank 17 below through the second through hole 15.
[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A low temperature cure powder coating screw extrusion apparatus comprising: The support base (1) and heating plate (13) are characterized in that a support rod (2) is fixedly connected to the middle of the bottom top of the support base (1), a second groove (27) is opened in the middle of the top of the support rod (2), a plug plate (3) is fixedly connected to the inner wall of the rear side of the second groove (27), a roller shaft (4) is rotatably connected to the middle of the front end of the plug plate (3), a spiral stirring blade (5) is provided on the circumference of the roller shaft (4), a stirring tube (7) is inserted into the inside of the second groove (27), a plug-in through hole (8) is opened in the middle of the rear side of the stirring tube (7), the plug-in through hole (8) is inserted into the spiral stirring blade (5), a heating plate (13) is provided at each of the four corners inside the stirring tube (7), a water spray head (26) is provided above the stirring tube (7), and a second through hole (15) is opened at the bottom of the support rod (2).
2. A low temperature cure powder coating screw extrusion apparatus as defined in claim 1, wherein, The second groove (27) has a second insertion groove (28) symmetrically opened on the left and right side walls. The stirring tube (7) is symmetrically fixedly connected with insertion rods (9) on the left and right sides. The insertion rods (9) are inserted into the second insertion groove (28). The bottom rear end of the stirring tube (7) is provided with a material inlet (29).
3. A low temperature cure powder coating screw extrusion apparatus as defined in claim 2, wherein, The second insertion slot (28) has threaded holes (14) at both the upper and lower ends of its front side. The front end of the insertion rod (9) is fixedly connected to a fixing plate (10). The top and bottom ends of the front side of the fixing plate (10) are both provided with first through holes (11).
4. A low temperature cure powder coating screw extrusion apparatus as defined in claim 3, wherein, A screw (12) is provided on the front side of the first through hole (11). The screw (12) is inserted into the first through hole (11) and threadedly connected to the threaded hole (14).
5. A low temperature cure powder coating screw extrusion apparatus as defined in claim 1, wherein, The first motor (6) is fixedly connected to the middle of the rear side of the support rod (2), and the drive end of the first motor (6) is fixedly connected to the rear end of the roller (4).
6. A low temperature cure powder coating screw extrusion apparatus as defined in claim 1, wherein, A fixed rod (18) is fixedly connected to the top and bottom middle of the support base (1). A first groove (19) is opened at the bottom of the fixed rod (18). A threaded rod (20) is rotatably connected inside the first groove (19). A threaded block (22) is threadedly connected to the circumference of the threaded rod (20). An electric telescopic rod (23) is fixedly connected to the bottom end of the threaded block (22). A connecting block (24) is fixedly connected to the bottom end of the electric telescopic rod (23). The bottom end of the connecting block (24) is fixedly connected to the top end of the spray head (26). A water pipe (25) is provided on the right side of the connecting block (24).
7. The low-temperature curing powder coating screw extrusion device according to claim 1, characterized in that, The support base (1) has a first insertion groove (16) at the top front side of the bottom end. The top of the first insertion groove (16) is connected to the second through hole (15). A water tank (17) is inserted into the inside of the first insertion groove (16).
8. A low temperature cure powder coating screw extrusion apparatus as defined in claim 6, wherein, The front end of the fixed rod (18) is fixedly connected to a second motor (21), and the drive end of the second motor (21) is fixedly connected to the front end of the threaded rod (20).