Collecting device mounted on powder coating twin-screw extrusion equipment
By installing a collection device on a twin-screw extruder, continuous material collection can be achieved using a three-way pipe and a vibrating motor, solving the problem of replacing the collection box during equipment downtime, improving production efficiency, and preventing powder coating blockage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU HSINDA POLYMER MATERIALS CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-04-24
AI Technical Summary
The twin-screw extruder requires the collection box to be replaced after discharge, which causes the equipment to be unable to work continuously and affects the processing progress.
Design a collection device for installation on a twin-screw powder coating equipment, including a mounting frame with two collection boxes slidably inserted, a three-way pipe installed on the mounting frame, and a fixedly installed three-way pipe above the two collection boxes inside the mounting frame. The surface of the mounting frame is provided with a connecting unit and a valve, and the top of the mounting frame is provided with a fixing ring and a rubber column. A strong spring is slidably sleeved on the rubber column. The vibrating motor is controlled by a controller to vibrate the feeding bin.
It enables uninterrupted material collection, avoids equipment downtime for replacing collection boxes, improves production efficiency, and prevents powder coating blockage.
Smart Images

Figure CN224158845U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of collection device technology, specifically a collection device installed on a powder coating twin-screw extrusion equipment. Background Technology
[0002] Twin-screw extruders are key equipment in the powder coating production process. A twin-screw extruder uses two meshing screws to perform a series of operations, including conveying, compacting, shearing, mixing, and plasticizing, on materials within a heated barrel. The material enters through the feed inlet and is conveyed forward as the screws rotate. During this process, the threads of the two screws interact, continuously squeezing and kneading the material, ensuring thorough and uniform mixing of all components. Due to frictional heat and external heating, the material gradually reaches a suitable temperature and viscosity, achieving excellent plasticization, and is finally extruded from the die head.
[0003] Currently, after the material is discharged from the outlet of a twin-screw extruder, it enters the collection box through the first corrugated pipe. When the collection box is full, the user needs to shut down the twin-screw extruder to stop the discharge and replace the collection box. During this process, the twin-screw extruder cannot continue to work, thus affecting the processing progress of the twin-screw extruder. Therefore, a new type of collection device installed on a powder coating twin-screw extruder is needed to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in current twin-screw extruders, after discharge, the material exits from its discharge port and enters the collection box through the first corrugated pipe. When the collection box is full, the user needs to shut down the twin-screw extruder to stop discharge and replace the collection box. During this process, the twin-screw extruder cannot continue to work, thus affecting the processing progress of the twin-screw extruder. This invention provides a collection device.
[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0006] A collection device installed on a twin-screw extruder for powder coating includes: a mounting frame, two collection boxes slidably inserted into the inner wall of the mounting frame, a three-way pipe fixedly installed on the inner wall of the mounting frame above the two collection boxes, a connecting unit and a feed hopper connected to one end of the three-way pipe, the connecting unit being used to connect the other two ends of the three-way pipe to the interior of the two collection boxes respectively, and a valve being provided at each end of the three-way pipe.
[0007] Furthermore, the surface of the mounting bracket has two receiving cavities, and the surfaces of the two collection boxes are slidably inserted into the interiors of the two receiving cavities.
[0008] Furthermore, the connecting unit includes two feed ports respectively disposed on the inner walls of the two receiving cavities. The surfaces of the two feed ports are threaded with connecting pipes. The other ends of the two connecting pipes are rotatably connected with rotating pipes. The other ends of the two rotating pipes are fixedly connected to first corrugated pipes. The other ends of the two first corrugated pipes are respectively fixedly connected to two ends of the three-way pipe.
[0009] Furthermore, the feeding hopper includes a main hopper body, the top of which is provided with an opening and a cover plate is rotatably mounted on the surface of the opening. Both the cover plate and the surface of the main hopper body are provided with communication ports, one of which is connected to one end of the tee pipe. It also includes a limiting unit and an installation unit. The limiting unit is used to limit the position of the cover plate, and the installation unit is used to install the main hopper body on the surface of the mounting frame.
[0010] Furthermore, one end of one of the connecting ports is fixedly connected to a second corrugated pipe, and the other end of the second corrugated pipe is connected to one end of the tee pipe.
[0011] Furthermore, the limiting unit includes two limiting protrusions respectively disposed on the surface of the main compartment and the cover plate. One of the limiting protrusions has a groove on its surface, and the other limiting protrusion has an external threaded tube fixedly installed on its surface. The surface of the external threaded tube is threaded with an internal threaded tube.
[0012] Furthermore, the installation unit includes a fixing ring fixedly installed on the top of the mounting frame. A plurality of rubber pillars are fixedly installed on the top of the fixing ring. Each of the rubber pillars is slidably fitted with a high-strength spring. One end of each of the high-strength springs is fixedly installed on the surface of the fixing ring, and the other end of each of the high-strength springs is fixedly installed on the surface of the main compartment. A vibration motor is fixedly installed on the surface of the cover plate. The vibration motor is electrically connected to a controller fixedly installed on the surface of the mounting frame.
[0013] Furthermore, the inner wall of the main compartment has a limiting edge, and a filter screen is slidably inserted into the inner wall of the main compartment.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, two collection boxes are slidably inserted into the inner wall of the mounting frame, and a three-way pipe is fixedly installed on the inner wall of the mounting frame above each collection box. During use, the user can connect the other two ends of the three-way pipe to the inner walls of the two collection boxes respectively through the connecting unit. Then, the discharge end of the powder coating twin-screw extruder is connected to the other end of the feed hopper, so that the powder coating can be introduced into the inside of the three-way pipe. Finally, it falls into the inside of one of the collection boxes from the other end of the three-way pipe (at this time, the other valve is in a closed state). After the material inside the collection box is full, the user needs to close the valve above the collection box and open the other valve to introduce the material into the inside of the other collection box. Then, the collection box with full material is taken out to remove the material, thus achieving uninterrupted material discharge.
[0016] 2. In this utility model, a fixing ring is fixedly installed on the top of the mounting frame, and several rubber columns are fixedly installed on the surface of the fixing ring. A strong spring is slidably sleeved on the surface of each rubber column. During use, the user controls the vibration motor to vibrate through the controller, which drives the feeding hopper to vibrate. This allows the powder coating entering the hopper to fall smoothly into the second corrugated pipe under its vibration, avoiding blockage due to excessively fast powder coating production speed. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a half-sectional view of the present invention;
[0019] Figure 3 This utility model Figure 2 Enlarged view of A in the middle;
[0020] Figure 4 This is a partial cross-sectional view of a three-dimensional structural schematic diagram of the present invention from another angle;
[0021] Figure 5 This utility model Figure 4 Enlarged view of B in the middle;
[0022] Figure 6 This is a half-sectional view of the present invention from another angle.
[0023] In the diagram: 1. Mounting frame; 2. Collection box; 3. T-pipe; 4. Connecting unit; 41. Feed inlet; 42. Connecting pipe; 43. Rotating pipe; 44. First corrugated pipe; 5. Feed hopper; 51. Main hopper body; 52. Opening; 53. Cover plate; 54. Connecting port; 55. Limiting unit; 551. Limiting protrusion; 552. Groove; 553. External threaded pipe; 554. Internal threaded pipe; 56. Mounting unit; 561. Fixing ring; 562. Rubber column; 563. Strong spring; 564. Vibration motor; 565. Controller; 6. Valve; 7. Receiving cavity; 8. Second corrugated pipe; 9. Limiting edge; 10. Filter screen. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0025] This embodiment provides a collection device installed on a twin-screw extruder for powder coating. It primarily addresses the problem that in current twin-screw extruders, after discharge, material exits from the discharge port and enters the collection box through the first corrugated pipe. When the collection box is full, the user needs to shut down the twin-screw extruder to stop discharge and replace the collection box. During this process, the twin-screw extruder cannot continue operating, thus affecting the processing progress. The following technical solution is provided, which will be discussed in conjunction with... Figures 1-6 Please provide a detailed explanation:
[0026] A collection device installed on a twin-screw extruder for powder coating includes: a mounting frame 1 with two collection boxes 2 slidably inserted into its inner wall (specifically, two receiving cavities 7 are formed on the surface of the mounting frame 1, and the surfaces of the two collection boxes 2 are slidably inserted into the inner walls of the two receiving cavities respectively); a three-way pipe 3 is fixedly installed on the inner wall of the mounting frame 1 above the two collection boxes 2; one end of the three-way pipe 3 is connected to a feed hopper 5; in use, the user needs to connect the other two ends of the three-way pipe 3 to the interior of the two collection boxes 2 respectively through a connecting unit 4 (both ends of the three-way pipe 3 are equipped with valves 6); in use, the user needs to feed the powder coating twin-screw extruder... The discharge end of the equipment is connected to one end of the feed hopper 5, allowing material to be passed into the three-way pipe 3. Finally, the material enters one of the collection boxes 2 from one end of the three-way pipe 3. When the collection box 2 is full, the user closes the corresponding valve 6 and opens another valve 6 to pass the material into another collection box 2. Then, the previous collection box 2 is removed and cleaned. This cycle is repeated to achieve uninterrupted collection of the material from the twin-screw extruder for powder coating. The main components of the feed hopper 5 are: a main hopper body 51 with an opening 52 at the top (the main hopper body 51 is mounted on the surface of the mounting frame 1 via the mounting unit 56), and a cover plate 53 is rotatably mounted on the surface of the opening 52. Simultaneously, both the cover plate 53 and the main chamber 51 have connecting ports 54 on their surfaces. One of the connecting ports 54 is connected to one end of the three-way pipe 3. During use, the user connects the discharge end of the powder coating twin-screw extruder to the inner wall of the connecting port 54 on the surface of the cover plate 53, allowing the powder coating to enter the main chamber 51. After entering the main chamber 51, the powder coating will enter the three-way pipe 3 through the connecting port 54 on the surface of the main chamber 51. After use, the user can release the restriction on the relative position between the cover plate 53 and the main chamber 51 using the limiting unit 55, then open the cover plate 53 to clean the inner walls of the main chamber 51 and the cover plate 53. The main components of the connecting unit 4 are: two first corrugated pipes 44 fixedly connected to both ends of the three-way pipe 3, and rotating pipes 43 fixedly connected to the other ends of the two first corrugated pipes 44. In use, the user screws the two connecting pipes 42, which are respectively rotatably inserted into one end of the two rotating pipes 43, onto the surfaces of the two feed ports 41 respectively set on the inner walls of the two receiving cavities 7, so as to realize the connection between both ends of the three-way pipe 3 and the two receiving cavities 7. The connection between the feed hopper 5 and one end of the three-way pipe 3 is as follows: a second corrugated pipe 8 is fixedly connected to one end of one of the connecting ports 54, and the other end of the second corrugated pipe 8 is connected to one end of the three-way pipe 3.
[0027] By sliding two collection boxes 2 into the inner wall of the mounting frame 1, and simultaneously installing a three-way pipe 3 fixedly mounted on the inner wall of the mounting frame 1 above each collection box 2, the user can connect the other two ends of the three-way pipe 3 to the inner walls of the two collection boxes 2 respectively through the connecting unit 4. Then, the discharge end of the powder coating twin-screw extruder is connected to the other end of the feed hopper 5, allowing the powder coating to be fed into the inside of the three-way pipe 3. Finally, the powder coating falls from the other end of the three-way pipe 3 into the inside of one of the collection boxes 2 (at this time, the other valve 6 is in a closed state). After the material inside the collection box 2 is full, the user needs to close the valve 6 above the collection box 2 and open the other valve 6 to allow the material to be fed into the inside of the other collection box 2. Then, the collection box 2 with the full material inside is removed to extract the material, thus achieving uninterrupted material discharge.
[0028] By fixing a retaining ring 561 to the top of the mounting frame 1, and fixing several rubber pillars 562 to the surface of the retaining ring 561, and slidingly sleeved with a strong spring 563 on the surface of each rubber pillar 562, the user controls the vibration motor 564 to vibrate through the controller 565 during use, which drives the feeding hopper 5 to vibrate. This allows the powder coating entering the hopper to fall smoothly into the second corrugated pipe 8 under the vibration, avoiding blockage due to excessively fast powder coating production speed.
[0029] like Figure 5 and Figure 6As shown, in some embodiments, the main components of the limiting unit 55 are: two limiting protrusions 551 respectively disposed on the surfaces of the main compartment 51 and the cover plate 53, and an external threaded tube 553 is fixedly installed on the surface of one of the limiting protrusions 551. In use, the user rotates the cover plate 53, and the slot 552 opened on the surface of the limiting protrusion 551 is fitted onto the surface of the external threaded tube 553. Then, an internal threaded tube 554 is threaded onto the surface of the external threaded tube 553, thereby limiting the relative position between the two limiting protrusions 551 (limiting the relative position between the main compartment 51 and the cover plate 53). The main components of the mounting unit 56 are: a fixing ring 561 fixedly installed on the top of the mounting frame 1, and a plurality of rubber pillars 562 fixedly installed on the top of the fixing ring 561, and the surfaces of the plurality of rubber pillars 562 are slidably sleeved. A series of powerful springs 563 are provided. One end of each of the powerful springs 563 is fixedly installed on the surface of the fixing ring 561, and the other end of each of the powerful springs 563 is fixedly installed on the surface of the main chamber 51. In use, the user controls the vibration motor 564 fixedly installed on the surface of the cover plate 53 to vibrate through the controller 565 fixedly installed on the surface of the mounting bracket 1. This causes the cover plate 53 and the main chamber 51 to vibrate, so that the powder falling into the main chamber 51 is quickly shaken off. Since a limiting edge 9 is provided on the inner wall of the main chamber 51, the user can slide and insert a filter screen 10 into the inner wall of the main chamber 51 during use. The surface of the filter screen 10 is attached to the surface of the limiting edge 9, so that the powder is filtered and coarser powder cannot fall into the interior of the second corrugated pipe 8 (this type of powder is less).
[0030] The working process of this utility model is as follows: First, the user needs to insert the discharge end of the powder coating twin-screw extruder into the inner wall of the connecting port 54 on the surface of the cover plate 53, and pass the processed powder into the inside of the cover plate 53. After the powder falls into the inside of the main chamber 51, it will pass through the second corrugated pipe 8 and fall into the inside of the three-way pipe 3, and finally fall into the inside of one of the two collection boxes 2 (the user needs to control the discharge direction of the powder in the three-way pipe 3 by controlling the opening and closing of the two valves 6). When it is necessary to replace the collection box 2, one of the valves 6 is closed and the other valve 6 is opened.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A collecting device installed on a twin-screw extruder for powder coating, characterized in that, include: Mounting frame (1), with two collection boxes (2) slidably inserted into the inner wall of the mounting frame (1). A three-way pipe (3) fixedly installed on the inner wall of the mounting frame (1) is provided above the two collection boxes (2). It also includes a connecting unit (4) and a feed hopper (5) connected to one end of the three-way pipe (3). The connecting unit (4) is used to connect the other two ends of the three-way pipe (3) to the inside of the two collection boxes (2) respectively. A valve (6) is provided at both ends of the three-way pipe (3).
2. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 1, characterized in that: The mounting bracket (1) has two receiving cavities (7) on its surface, and the surfaces of the two collection boxes (2) are slidably inserted into the interiors of the two receiving cavities (7).
3. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 2, characterized in that: The connecting unit (4) includes two feed ports (41) respectively disposed on the inner walls of the two receiving cavities (7). The surfaces of the two feed ports (41) are threaded with connecting pipes (42). The other ends of the two connecting pipes (42) are rotatably connected with rotating pipes (43). The other ends of the two rotating pipes (43) are fixedly connected with first corrugated pipes (44). The other ends of the two first corrugated pipes (44) are respectively fixedly connected to two ends of the three-way pipe (3).
4. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 1, characterized in that: The feeding hopper (5) includes a main hopper body (51), the top of the main hopper body (51) is provided with an opening (52) and a cover plate (53) is rotatably installed on the surface of the opening (52). Both the cover plate (53) and the surface of the main hopper body (51) are provided with a connecting port (54), one of the connecting ports (54) being connected to one end of the three-way pipe (3). It also includes a limiting unit (55) and an installation unit (56). The limiting unit (55) is used to limit the position of the cover plate (53), and the installation unit (56) is used to install the main hopper body (51) on the surface of the mounting frame (1).
5. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 4, characterized in that: One end of one of the connecting ports (54) is fixedly connected to a second corrugated pipe (8), and the other end of the second corrugated pipe (8) is connected to one end of the tee pipe (3).
6. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 4, characterized in that: The limiting unit (55) includes two limiting protrusions (551) respectively disposed on the surfaces of the main compartment (51) and the cover plate (53). One of the limiting protrusions (551) has a slot (552) on its surface, and the other limiting protrusion (551) has an external threaded tube (553) fixedly installed on its surface. The external threaded tube (553) has an internal threaded tube (554) threaded onto its surface.
7. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 4, characterized in that: The installation unit (56) includes a fixing ring (561) fixedly installed on the top of the mounting frame (1). Several rubber columns (562) are fixedly installed on the top of the fixing ring (561). A strong spring (563) is slidably sleeved on the surface of each of the rubber columns (562). One end of each of the strong springs (563) is fixedly installed on the surface of the fixing ring (561), and the other end of each of the strong springs (563) is fixedly installed on the surface of the main compartment (51). A vibration motor (564) is fixedly installed on the surface of the cover plate (53). The vibration motor (564) is electrically connected to a controller (565) fixedly installed on the surface of the mounting frame (1).
8. A collection device for installation on a powder coating twin-screw extrusion apparatus according to claim 4, characterized in that: The inner wall of the main compartment (51) has a limiting edge (9), and a filter screen (10) is slidably inserted into the inner wall of the main compartment (51).