Mixing equipment for extruder

Abstract

The utility model discloses mixing equipment for an extruder, which comprises a rack, a mixing box arranged above the rack and a stirring mechanism arranged in the mixing box, the mixing equipment is used for mixing resin and pigment, and the stirring mechanism comprises a transverse plate, a cylinder, a lining plate, a servo motor A, a reciprocating screw rod, a lifting rod, a stirring rod and an inclined plate; a driving motor B drives a cylinder to rotate, while the cylinder rotates, a servo motor A drives a plurality of stirring rods and an inclined plate to ascend and descend in a reciprocating mode through a reciprocating lead screw, and under the rotation effect of the cylinder, the multiple stirring rods and the inclined plate stir resin and pigment and move up and down in a reciprocating mode at the same time, so that the resin and the pigment are turned over; uneven mixing of resin and raw materials caused by gravity is avoided, the color difference of the raw materials of the powder coating is reduced, and the overall quality of the powder coating extruded by the mixing equipment for the extruder is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of powder coating extrusion equipment, and in particular to a mixing device for an extruder. Background Technology

[0002] Powder coating extruders are key equipment in the preparation of powder coatings, primarily used to melt, mix, and uniformly extrude raw materials such as resins, curing agents, pigments, and additives. Their core structure includes a feeding system, a screw extrusion mechanism, a temperature control device, and a tablet cooling unit. Through the shearing, compression, and mixing action of the screw, the materials are melted and homogenized at high temperatures (typically 80-120℃), then extruded using the mixing equipment in the extruder, and finally cooled and crushed into coating powder. The equipment must ensure uniform mixing, dispersibility, and thermal stability to meet the film-forming and curing performance requirements of the coating.

[0003] In the prior art, Chinese utility model patent CN213919480U discloses a mixing device for a dynamic mixing extruder, including a mechanical base, an extrusion box on the top of the mechanical base, a PLC controller fixedly installed on one side of the mechanical base, and a feeding mechanism fixedly installed on the top side of the mechanical base. The feeding mechanism includes a feeding frame fixedly installed on the top side of the mechanical base, a drive motor fixedly installed on one side of the feeding frame, and drive shafts fixedly installed at both ends of the top of the feeding frame. A feeding belt is sleeved on the outside of the two drive shafts, and the drive shafts are fixedly connected to the rotating shaft of the drive motor. Several feeding nozzles are fixedly installed on the outside of the frame of the feeding belt. The beneficial effect of this utility model is that the feeding frame is used to feed the raw materials for the extruder, and the drive motor drives the rotation of the drive shafts, thereby enabling the feeding nozzles to transport the raw materials, thus reducing the consumption of manpower during the feeding process of the mixing device for the extruder.

[0004] Problems compared to existing technologies: Some existing extruders use mixing equipment that cannot agitate the resin and pigment during the powder coating preparation process, resulting in uneven mixing of the resin and raw materials due to gravity, causing color differences in the raw materials of the powder coating and reducing the overall quality of the powder coating extrusion.

[0005] Therefore, there is an urgent need for a mixing device for extruders. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a mixing device for an extruder.

[0007] The present invention solves its technical problem through the following technical solution: it includes a frame, a mixing chamber mounted on the frame, and a stirring mechanism disposed inside the mixing chamber for mixing resin and pigment. The stirring mechanism includes a horizontal plate, which is fixed to the top of the mixing chamber by bolts. A cylinder is rotatably connected to the middle position of the horizontal plate. An inner lining plate is fixedly connected to the inner wall of the cylinder. A servo motor A is fixedly connected to the top of the cylinder. A reciprocating lead screw is fixedly connected to the rotating end of the servo motor A. A lifting rod is provided on the outside of the reciprocating lead screw. Multiple stirring rods are fixedly connected to the outside of the lifting rod. An inclined plate is fixedly connected to the middle position of the stirring rod.

[0008] As a further embodiment of this utility model: a feeding mechanism is provided on one side of the mixing box for feeding the mixed resin and pigment. The feeding mechanism includes a feeding hopper, which is fixed to the outer wall of the mixing box by bolts. A side plate is provided on one side of the mixing box, and an electric push rod is fixedly connected to the lower part of the side plate. A baffle is fixedly connected to the extended end of the electric push rod. A connecting pipe, which is a telescopic flexible hose, is fixedly connected to one end of the feeding hopper.

[0009] As a further embodiment of this utility model: an extrusion mechanism is provided at one end of the connecting pipe for extruding powder coating raw materials. The extrusion mechanism includes an extrusion cylinder, which is fixed to one end of the connecting pipe by bolts. A drive motor A is fixedly connected to one end of the extrusion cylinder, and a spiral blade is fixedly connected to the rotating end of the drive motor A. A discharge head is provided at one end of the extrusion cylinder, and multiple electric heating tubes are fixedly connected to the inner wall of the extrusion cylinder. A temperature sensor is fixedly connected to one side of each electric heating tube.

[0010] As a further embodiment of this utility model: a driving mechanism is provided on one side of the horizontal plate for driving the cylinder to rotate. The driving mechanism includes a driving motor B, which is fixed to the bottom of the horizontal plate by bolts. A toothed pulley A is fixedly connected to the rotating end of the driving motor B. A toothed pulley B is fixedly connected to the outer side of the cylinder. A toothed belt is provided on the outer side of both the toothed pulley A and the toothed pulley B.

[0011] As a further improvement of this utility model: an observation window is fixedly connected to one side of the mixing box, and a diffusion hood is fixedly connected to the top of the mixing box.

[0012] As a further embodiment of this utility model: support arms are fixedly connected to both sides of the frame, and a servo motor B is fixedly connected to one end of the support arm. The rotating end of the servo motor B is fixedly connected to the mixing box.

[0013] As a further improvement of this utility model: a track is provided above the hopper, and the baffle is slidably connected to the track.

[0014] As a further improvement of this utility model, a protective shell is fixedly connected to the outer side of both the drive motor B and the toothed belt.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] 1. The cylinder is driven to rotate by the drive motor B. While the cylinder rotates, the servo motor A drives multiple stirring rods and inclined plates to move up and down repeatedly through the reciprocating screw. Under the action of the cylinder rotation, the multiple stirring rods and inclined plates stir the resin and pigment while moving up and down to turn the resin and pigment, so as to avoid uneven mixing of resin and raw materials caused by gravity, reduce the color difference of raw materials of powder coating, and ensure the overall quality of powder coating extrusion by the mixing equipment of the extruder.

[0017] 2. The electric push rod drives the baffle to rise and fall along the track, thereby controlling the automatic opening or closing of the feeding hopper, improving the automation level of the mixing equipment for extruders. The servo motor B drives the mixing box to tilt, thereby using gravity to feed the resin and raw materials, ensuring the completeness of the feeding of extruded raw materials by the mixing equipment for extruders.

[0018] 3. The powder coating raw material is heated by an electric heating element, and the temperature of the powder coating raw material is detected by a temperature sensor to avoid local overheating of the powder coating raw material and thus prevent degradation. This improves the intelligence level of the mixing equipment used in the extruder. Attached Figure Description

[0019] Figure 1 A schematic diagram of an isometric structure according to an embodiment of the present invention is shown;

[0020] Figure 2 A schematic diagram of the front view structure according to an embodiment of the present utility model is shown;

[0021] Figure 3 A side sectional view of the structure according to an embodiment of the present invention is shown;

[0022] Figure 4 The present invention provides an embodiment of the present invention. Figure 3 A magnified view of the structure at point A in the middle;

[0023] Figure 5 The present invention provides an embodiment of the present invention. Figure 1 A magnified schematic diagram of the structure at point B in the middle;

[0024] Figure 6 A schematic diagram of the front cross-sectional structure according to an embodiment of the present invention is shown;

[0025] Figure 7 The present invention provides an embodiment of the present invention. Figure 6 A magnified schematic diagram of the structure at point C in the middle;

[0026] Figure 8 The present invention provides an embodiment of the present invention. Figure 6 A magnified schematic diagram of the structure at point D.

[0027] Legend:

[0028] 100. Frame; 200. Mixing tank; 300. Observation window; 400. Diffuser hood; 500. Support arm; 600. Servo motor B;

[0029] 101. Horizontal plate; 102. Cylinder; 103. Inner liner plate; 104. Servo motor A; 105. Reciprocating lead screw; 106. Lifting rod; 107. Stirring rod; 108. Inclined plate;

[0030] 201. Feed hopper; 202. Side plate; 203. Electric push rod; 204. Baffle; 205. Connecting pipe; 210. Track;

[0031] 301. Extrusion cylinder; 302. Drive motor A; 303. Spiral blade; 304. Discharge head; 305. Heating element; 306. Temperature sensor;

[0032] 401. Drive motor B; 402. Toothed pulley A; 403. Toothed pulley B; 404. Toothed belt; 410. Protective housing. Detailed Implementation

[0033] 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 exemplary in nature and not restrictive.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] Example 1

[0037] like Figure 1-8 As shown, a mixing device for an extruder includes a frame 100, a mixing chamber 200 mounted above the frame 100, and a stirring mechanism disposed inside the mixing chamber 200 for mixing resin and pigment. The stirring mechanism includes a horizontal plate 101, which is bolted to the top of the mixing chamber 200. A cylinder 102 is rotatably connected to the middle of the horizontal plate 101. An inner liner 103 is bolted to the inner wall of the cylinder 102. A servo motor A104 is bolted to the top of the cylinder 102. A reciprocating screw 105 is bolted to the rotating end of the servo motor A104. The servo motor A104 drives the reciprocating screw 105 to rotate. A lifting rod 106 is driven to the outer side of the reciprocating screw 105. The lifting rod 106 is slidably connected to the inner liner 103. The rotation of the reciprocating screw 105 drives the lifting rod 106 to reciprocate. Multiple stirring rods are bolted to the outer side of the lifting rod 106. A stirring rod 107 rotates to stir the resin and pigment. An inclined plate 108 is bolted to the middle of the stirring rod 107, and the inclined plate 108 agitates the resin and pigment. A driving mechanism is provided on one side of the horizontal plate 101 to drive the cylinder 102 to rotate. The driving mechanism includes a drive motor B401, which is bolted to the bottom of the horizontal plate 101. The rotating end of the drive motor B401 is bolted to... There is a toothed pulley A402, and a drive motor B401 drives the toothed pulley A402 to rotate. A toothed pulley B403 is fixed to the outside of the cylinder 102 by bolts. A toothed belt 404 is connected to the outside of both the toothed pulley A402 and the toothed pulley B403. A protective shell 410 is fixed to the outside of both the drive motor B401 and the toothed belt 404 by bolts. The protective shell 410 protects the toothed pulley A402, the toothed pulley B403 and the toothed belt 404.

[0038] In this embodiment, the cylinder 102 is driven to rotate by the drive motor B401. While the cylinder 102 rotates, the servo motor A104 drives multiple stirring rods 107 and inclined plates 108 to move up and down repeatedly via the reciprocating screw 105. Under the rotation of the cylinder 102, the multiple stirring rods 107 and inclined plates 108 stir the resin and pigment while moving up and down to turn the resin and pigment, avoiding uneven mixing of the resin and raw materials caused by gravity, reducing the color difference of the raw materials of the powder coating, and ensuring the overall quality of the powder coating extruded by the mixing equipment of the extruder.

[0039] Example 2

[0040] like Figure 1-7As shown, a mixing device for an extruder includes a frame 100 with support arms 500 bolted to both sides. A servo motor B600 is bolted to one end of each support arm 500. The rotating end of the servo motor B600 is fixedly connected to a mixing chamber 200. The servo motor B600 drives the mixing chamber 200 to tilt. A feeding mechanism is provided on one side of the mixing chamber 200 for feeding the mixed resin and pigment. The feeding mechanism includes a feeding hopper 201, which is bolted to the mixing chamber 200. The outer wall of the mixing box 200 has a side plate 202 welded to one side. An electric push rod 203 is bolted to the lower part of the side plate 202. A baffle 204 is bolted to the extended end of the electric push rod 203. The baffle 204 is slidably connected to the discharge hopper 201. A track 210 is welded above the discharge hopper 201. The baffle 204 is slidably connected to the track 210, which limits the lifting trajectory of the baffle 204. A connecting pipe 205 is bolted to one end of the discharge hopper 201. The connecting pipe 205 is a telescopic flexible hose. One end of the connecting pipe 205 is equipped with an extrusion mechanism for extruding powder coating raw materials. The extrusion mechanism includes an extrusion cylinder 301, which is bolted to one end of the connecting pipe 205. A drive motor A302 is bolted to one end of the extrusion cylinder 301. A spiral blade 303 is bolted to the rotating end of the drive motor A302. The drive motor A302 drives the spiral blade 303 to rotate, extruding the powder coating raw materials. One end of the extrusion cylinder 301 is threadedly connected to a discharge head 304. Multiple heating tubes 305 are fixed to the inner wall of the extrusion cylinder 301 by bolts. The heating tubes 305 heat the powder coating raw material. A temperature sensor 306 is fixed to one side of the heating tube 305 by bolts. The temperature sensor 306 detects the temperature of the powder coating raw material. An observation window 300 is fixed to one side of the mixing box 200 by bolts. A diffusion cover 400 is fixed to the top of the mixing box 200 by bolts. The diffusion cover 400 improves the convenience of adding resin and pigment.

[0041] In this embodiment, the electric push rod 203 drives the baffle 204 to rise and fall along the track 210, thereby controlling the automatic opening or closing of the feeding hopper 201, improving the automation level of the mixing equipment for the extruder. The servo motor B600 drives the mixing box 200 to tilt, thereby using gravity to feed the resin and raw materials, ensuring the completeness of the feeding of the extruded raw materials by the mixing equipment for the extruder. The electric heating tube 305 heats the powder coating raw materials, and the temperature sensor 306 detects the temperature of the powder coating raw materials to avoid local overheating of the powder coating raw materials, which would lead to material degradation, thus improving the intelligence level of the mixing equipment for the extruder.

[0042] 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 mixing device for an extruder, characterized in that, It includes a frame (100), a mixing chamber (200) mounted above the frame (100), and a stirring mechanism disposed inside the mixing chamber (200) for mixing resin and pigment. A feeding mechanism is provided on one side of the mixing tank (200) for feeding the mixed resin and pigment. The stirring mechanism includes a horizontal plate (101), which is fixed to the top of the mixing box (200) by bolts. A cylinder (102) is rotatably connected to the middle position of the horizontal plate (101). An inner liner plate (103) is fixedly connected to the inner wall of the cylinder (102). A servo motor A (104) is fixedly connected to the top of the cylinder (102). A reciprocating screw (105) is fixedly connected to the rotating end of the servo motor A (104). A lifting rod (106) is provided on the outside of the reciprocating screw (105). Multiple stirring rods (107) are fixedly connected to the outside of the lifting rod (106). An inclined plate (108) is fixedly connected to the middle position of the stirring rod (107).

2. The mixing equipment for an extruder according to claim 1, characterized in that, The feeding mechanism includes a feeding hopper (201), which is fixed to the outer wall of the mixing box (200) by bolts. A side plate (202) is provided on one side of the mixing box (200). An electric push rod (203) is fixedly connected to the lower part of the side plate (202). A baffle (204) is fixedly connected to the extended end of the electric push rod (203). A connecting pipe (205) is fixedly connected to one end of the feeding hopper (201). The connecting pipe (205) is a telescopic flexible hose.

3. The mixing equipment for an extruder according to claim 2, characterized in that, One end of the connecting pipe (205) is provided with an extrusion mechanism for extruding powder coating raw materials. The extrusion mechanism includes an extrusion cylinder (301), which is fixed to one end of a connecting pipe (205) by bolts. A drive motor A (302) is fixedly connected to one end of the extrusion cylinder (301), and a spiral blade (303) is fixedly connected to the rotating end of the drive motor A (302). A discharge head (304) is provided at one end of the extrusion cylinder (301), and multiple electric heating tubes (305) are fixedly connected to the inner wall of the extrusion cylinder (301). A temperature sensor (306) is fixedly connected to one side of each electric heating tube (305).

4. A mixing device for an extruder according to claim 1, characterized in that, A driving mechanism is provided on one side of the horizontal plate (101) for driving the cylinder (102) to rotate. The driving mechanism includes a drive motor B (401), which is fixed to the bottom of the horizontal plate (101) by bolts. The rotating end of the drive motor B (401) is fixedly connected to a toothed pulley A (402), and a toothed pulley B (403) is fixedly connected to the outside of the cylinder (102). Both the toothed pulley A (402) and the toothed pulley B (403) are provided with toothed belts (404) on their outer sides.

5. A mixing device for an extruder according to claim 1, characterized in that, An observation window (300) is fixedly connected to one side of the mixing chamber (200), and a diffusion hood (400) is fixedly connected to the top of the mixing chamber (200).

6. A mixing device for an extruder according to claim 1, characterized in that, Support arms (500) are fixedly connected to both sides of the frame (100), and a servo motor B (600) is fixedly connected to one end of the support arm (500). The rotating end of the servo motor B (600) is fixedly connected to the mixing box (200).

7. A mixing device for an extruder according to claim 2, characterized in that, A track (210) is provided above the hopper (201), and the baffle (204) is slidably connected to the track (210).

8. A mixing device for an extruder according to claim 4, characterized in that, The drive motor B (401) and the toothed belt (404) are both fixedly connected to a protective shell (410).

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