CN221793740U - A twin-screw extruder with side feeding structure - Google Patents

Abstract

The utility model discloses a double-screw extruder with a side feeding structure, which comprises a bottom plate, support columns, a fixed box, a first screw, a baffle, a shaping plate, a driving mechanism, a feeding mechanism and a locking mechanism, wherein the support columns are arranged at four corners of the lower end of the bottom plate, the fixed box is arranged at the upper end of the bottom plate, the feeding mechanism is arranged in the middle of one side of the fixed box, the feeding mechanism is arranged at the rear of the upper end of the fixed box, the baffle is arranged at the front end of the fixed box, the locking mechanism is arranged at one side of the baffle, the driving mechanism is arranged at the rear end of the fixed box, the first screw is arranged in the fixed box, and the shaping plate is arranged in the baffle. The utility model has the advantages that the material can be added in the feeding process through the material adding mechanism, the processing requirement of the material can be met, the material is uniformly dispersed, the quality and the efficiency of material production are improved, and the shaping plate can be replaced according to different production requirements.

Description

A twin-screw extruder with side feeding structure

Technical Field

The utility model relates to the technical field of extruders, in particular to a twin-screw extruder with a side feeding structure.

Background Art

Twin-screw extruder is developed on the basis of single-screw extruder. It has been widely used in the molding of extruded products due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics. Twin-screw extruder consists of several parts such as transmission device, feeding device, barrel and screw, and the functions of each part are similar to those of single-screw extruder.

Publication No. CN209775484U discloses a twin-screw extruder, including a feeding mechanism, the feeding mechanism includes a feeding port, a feeding screw is connected below the feeding port, the distance of the thread of the feeding screw close to the feeding port is greater than the distance away from the feed port, the feeding screw is connected to the feeding screw motor, below the feeding mechanism is a feeding barrel, a rotating barrel is provided in the feeding barrel, the rotating barrel is connected to an external power supply, below the feeding barrel is an extrusion mechanism, the extrusion mechanism includes a barrel, a heating layer is provided outside the extrusion mechanism, an insulation layer is provided outside the heating layer, and a vibrator is provided outside the insulation layer, which is connected to the extrusion mechanism. The threads of the feeding screw prevent the thread pitch from being small and causing blockage, and then more detailed processing is performed in the lower section. When the particles pass through the feeding barrel, the rotating barrel connected to the power supply is energized, which generates adsorption and adsorbs the residual metal particles. After the vibrator is turned on, the barrel vibrates to loosen the material, facilitate processing, and effectively improve work efficiency. However, the prior art still has disadvantages:

1. Due to the complexity of the process and the diversity of the formula content in the existing technology, the materials cannot meet the processing requirements at one time or efficiently when entering the twin screw. Therefore, it is necessary to increase the small materials to meet the processing requirements of the materials, which greatly increases the processing cost and processing cycle. In addition, it will lead to uneven feeding, which will eventually reduce the product performance.

2. The prior art uses a driving screw and a driven screw to transport the material inside the barrel and extrude the material through the discharge port. However, the prior art requires a shaping plate to be installed at the discharge port to shape the extruded material. However, the prior art lacks a fixing device for the shaping plate and has poor applicability.

Utility Model Content

The technical problem to be solved by the utility model is to overcome the above defects and provide a twin-screw extruder with a side feeding structure.

In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a twin-screw extruder with a side feeding structure comprises a bottom plate, support columns are fixedly connected to the front and rear parts of both sides of the lower end of the bottom plate, a fixed box is fixedly connected to the upper end of the bottom plate, a conveying trough is provided inside the fixed box, a shaft rod is rotatably connected to both sides of the rear end of the conveying trough through bearings, and screw rods are fixedly connected to the outside of the two shaft rods, a driving mechanism is provided at the rear end of the fixed box, a feeding mechanism is provided at the rear end of the upper end of the fixed box, a feeding mechanism is provided at the middle part of one side of the fixed box, a baffle is rotatably connected to the front end of the fixed box through a pin shaft, a through discharge hole is provided in the middle part of the front end of the baffle, a fixed groove is provided in the middle part of the upper end of the baffle, a shaping plate is plugged in the middle part of the fixed groove, a fixed block is plugged in the upper end of the inner side of the fixed groove, a top plate is provided at the upper end of the baffle, the top plate is fixedly connected to the middle part of the lower end of the fixed block, the top plate is fixedly connected to the upper end of the baffle by bolts, and a locking mechanism is provided on one side of the baffle.

As an improvement, the driving mechanism includes a gear 1 fixedly connected to the rear end of a shaft rod, the two gears 1 are meshed with each other, a motor frame 1 is fixedly connected to one side of the rear end of the base plate, a motor 1 is fixedly connected to the upper end of the motor frame 1, a gear 2 is fixedly connected to the front end of the motor 1, and the gear 1 and gear 2 are meshed.

As an improvement, the feeding mechanism includes a feeding hole opened at the rear part of the upper end of the fixed box, and the rear part of the upper end of the fixed box is fixedly connected with a feeding hopper.

As an improvement, the feeding mechanism includes an adding box fixedly connected to the middle part of one side of the fixed box, an adding groove is opened inside the adding box, the adding groove extends into the fixed box, the side of the adding groove away from the fixed box is rotatably connected to an axle rod 2 through a bearing, the outside of the axle rod 2 is fixedly connected to a screw rod 2, the end of the axle rod 2 away from the fixed box is fixedly connected to a motor 2, the lower end of the motor 2 is fixedly connected to a motor frame 2, the motor frame 2 is fixedly connected to the rear end of the adding box, and an adding mechanism is provided on the side of the upper end of the adding box away from the fixed box.

As an improvement, the locking mechanism includes a C-shaped locking plate fixedly connected to the middle part of one side of the baffle, a locking block is rotatably connected to the middle part of the front end of one side of the fixed box through a pin shaft, a screw rod is fixedly connected to the front end of the locking block, the screw rod is inserted into the inside of the locking plate, and a nut is threadedly connected to the outside of the screw rod.

As an improvement, the adding mechanism includes an adding hole opened on the upper end of the adding box away from the fixed box, and the upper end of the adding box is fixedly connected to the side away from the fixed box.

The advantages of the utility model compared with the prior art are: 1. The utility model can meet the material processing requirements by adding materials during the conveying process of the two screws inside the fixed box through the feeding mechanism, and the added materials are evenly dispersed, thereby improving the quality and efficiency of material production and reducing processing costs and processing cycles.

2. The utility model installs a baffle for fixing the shaping plate at the front end of the fixed box, opens a discharge hole for conveying raw materials and conveying formed materials in the middle of the front end of the baffle, opens a fixing groove for installing the shaping plate at the upper end of the baffle, installs the shaping plate for shaping the material inside the fixing groove, and installs a top plate for fixing the baffle at the upper end of the baffle, fixes the baffle by the top plate and the fixing block, and can conveniently replace the baffle when different types of baffles need to be replaced, and has strong applicability.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a perspective view of the utility model.

FIG. 2 is a cross-sectional view of the feeding mechanism of the present utility model.

FIG. 3 is a rear view of the present utility model.

FIG. 4 is a cross-sectional view of the locking mechanism of the present invention.

FIG5 is a cross-sectional view of the feeding mechanism of the present invention.

As shown in the figure: 1. Bottom plate; 11. Support column; 2. Fixed box; 21. Conveying trough; 22. Shaft rod 1; 23. Screw rod 1; 24. Baffle; 25. Discharge hole; 26. Fixed trough; 27. Forming plate; 28. Fixed block; 29. Top plate; 3. Driving mechanism; 31. Gear 1; 32. Motor frame 1; 33. Motor 1; 34. Gear 2; 4. Feeding mechanism; 41. Feeding hole; 42. Feeding hopper; 5. Adding mechanism; 51. Adding box; 52. Adding trough; 53. Shaft rod 2; 54. Screw rod 2; 55. Motor 2; 56. Motor frame 2; 6. Locking mechanism; 61. Locking plate; 62. Locking block; 63. Screw rod; 64. Nut; 7. Adding mechanism; 71. Adding hole; 72. Adding hopper.

DETAILED DESCRIPTION

The utility model is further described in detail below in conjunction with the accompanying drawings.

The utility model, in combination with Figures 1 to 5, has support columns 11 fixedly connected at the four corners of the lower end of a base plate 1 for supporting the base plate 1, a fixed box 2 fixedly connected at the upper end of the base plate 1, a conveying trough 21 for installing a screw 23 is opened inside the fixed box 2, a shaft 22 for fixing the screw 23 is rotatably connected to both sides of the middle of the rear end of the conveying trough 21 through bearings, the rear end of the shaft 22 extends to the rear end of the fixed box 2, a screw 23 for conveying materials is fixedly connected to the outside of the shaft 22, and a feeding mechanism 4 for adding main materials is installed at the upper end of the fixed box 2.

The feeding mechanism 4 includes a feeding hole 41 for feeding, which is opened at the rear part of the upper end of the fixed box 2. A feeding hopper 42 for conveniently adding materials is fixedly connected to the upper end of the feeding hole 41. A baffle 24 for installing a shaping plate 27 is rotatably connected to the front end of the fixed box 2 through a bearing. A fixing groove 26 for plugging the baffle 24 is opened at the upper end of the baffle 24. The shaping plate 27 is plugged into the inside of the fixing groove 26. A top plate 29 for fixing the shaping plate 27 is fixedly connected to the upper end of the baffle 24 by bolts. A fixing block 28 for fixing the shaping plate 27 is fixedly connected to the middle part of the lower end of the top plate 29. The fixing block 28 is plugged into the inner upper end of the fixing groove 26. The fixing block 28 is made of elastic material. The shaping plate 27 is restricted to the inside of the fixing groove 26 by the fixing block 28 and the top plate 29. A discharge hole 25 for conveying materials to the rear end of the shaping plate 27 and supplying the shaped materials to be output is opened at the front end of the baffle 24.

A driving mechanism 3 for driving the two screw rods 23 to rotate is installed at the rear end of the fixed box 2, including a gear 31 fixedly connected to the rear end of the two shaft rods 22 for driving the two screw rods 23 to rotate in opposite directions. The two gears 31 are meshed with each other, and a gear 2 34 for driving the gear 31 to rotate is meshed at the lower end of one side of the gear 31, and a motor 33 for driving the gear 2 34 to rotate is fixedly connected to the rear end of the gear 2 34, and a motor frame 32 for fixing the motor 33 is fixedly connected to the lower end of the motor 33, and the motor frame 32 and the base plate 1 are fixedly connected.

A locking mechanism 6 for fixing the baffle 24 is installed on one side of the baffle 24, and the locking mechanism 6 includes a C-shaped locking plate 61 fixedly connected to one side of the baffle 24, a screw rod 63 for fixing is inserted inside the locking plate 61, and a locking block 62 for fixing the screw rod 63 is fixedly connected to the rear end of the screw rod 63, the locking block 62 is rotatably connected to the fixing box 2 through a pin shaft, and a nut 64 for locking the locking plate 61 is threadedly connected to the outside of the screw rod 63.

A feeding mechanism 5 for adding auxiliary materials during the conveying process is installed in the middle of one side of the fixed box 2, and the feeding mechanism 5 includes an adding box 51 fixedly connected to the middle of one side of the fixed box 2, a motor frame 56 for fixing a motor 55 is fixedly connected to the end of the adding box 51 away from the fixed box 2, a motor 55 for driving a screw 54 to rotate is fixedly connected to the upper end of the motor frame 56, a shaft 53 for fixing the screw 54 is fixedly connected to the front end of the motor 55, an adding groove 52 for conveying auxiliary materials is opened in the adding box 51, the shaft 53 extends to the inside of the adding groove 52, and a screw 54 for conveying auxiliary materials is fixedly connected to the outside where the shaft 53 extends to the inside of the adding groove 52, and an adding mechanism 7 for adding auxiliary materials is installed on the side of the upper end of the adding box 51 away from the fixed box 2.

The adding mechanism 7 includes an adding hole 71 for adding auxiliary materials, which is opened at the upper end of the adding box 51 away from the fixed box 2. An adding bucket 72 for conveniently adding auxiliary materials is fixedly connected to the upper end of the adding hole 71.

During the specific implementation of the present invention, the top plate 29 is first released from the baffle 24 by rotating the fixing bolts, and then the fixing block 28 is taken out from the fixing groove 26 through the top plate 29, and then the shaping plate 27 is inserted into the fixing groove 26 according to the process requirements, and then the fixing block 28 is inserted into the fixing groove 26, and then the top plate 29 is fixedly connected to the upper end of the baffle 24 by bolts, and then the motor 33 is started to drive a gear 31, and since the two gears 31 are meshed with each other, the two shafts 22 rotate in opposite directions, and the screw 23 is driven to rotate by the shaft 22, and then the motor 2 55 is started, and the screw 2 54 is driven by the shaft 2 53, and finally the main material is added to the inside of the feed hopper 42, and the auxiliary material is added to the inside of the adding hopper 72, and the main material and the auxiliary material are stirred and mixed by the two screws 23 in the conveying trough 21, and then the mixed material is extruded from the extrusion hole in the middle of the shaping plate 27.

The above describes the utility model and its implementation methods, which are 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 (6)

1. A twin-screw extruder with a side feeding structure, characterized in that it comprises a bottom plate (1), the bottom plate (1) has support columns (11) fixedly connected to the front and rear parts of both sides of the lower end, the bottom plate (1) has a fixed box (2) fixedly connected to the upper end, a conveying trough (21) is provided inside the fixed box (2), the rear end of the conveying trough (21) is rotatably connected to a shaft rod (22) on both sides through bearings, the two shaft rods (22) are both fixedly connected to a screw rod (23) on the outside, the rear end of the fixed box (2) is provided with a driving mechanism (3), the rear end of the fixed box (2) is provided with a feeding mechanism (4), and the middle part of one side of the fixed box (2) is provided with a A feeding mechanism (5), wherein the front end of the fixed box (2) is rotatably connected to a baffle (24) via a pin shaft, a through discharge hole (25) is provided in the middle of the front end of the baffle (24), a fixing groove (26) is provided in the middle of the upper end of the baffle (24), a shaping plate (27) is inserted in the middle of the fixing groove (26), a fixing block (28) is inserted in the upper end of the inner side of the fixing groove (26), a top plate (29) is provided at the upper end of the baffle (24), the top plate (29) is fixedly connected to the middle of the lower end of the fixing block (28), the top plate (29) is fixedly connected to the upper end of the baffle (24) via bolts, and a locking mechanism (6) is provided on one side of the baffle (24). 2. A twin-screw extruder with a side feeding structure according to claim 1, characterized in that: the driving mechanism (3) includes a gear 1 (31) fixedly connected to the rear end of the shaft rod 1 (22), the two gears 1 (31) are meshed with each other, a motor frame 1 (32) is fixedly connected to one side of the rear end of the base plate (1), a motor 1 (33) is fixedly connected to the upper end of the motor frame 1 (32), a gear 2 (34) is fixedly connected to the front end of the motor 1 (33), and the gear 1 (31) and the gear 2 (34) are meshed. 3. A twin-screw extruder with a side feeding structure according to claim 1, characterized in that: the feeding mechanism (4) includes a feeding hole (41) opened at the rear upper end of the fixed box (2), and a feeding hopper (42) is fixedly connected to the rear upper end of the fixed box (2). 4. A twin-screw extruder with a side feeding structure according to claim 1, characterized in that: the feeding mechanism (5) includes an adding box (51) fixedly connected to the middle part of one side of the fixed box (2), an adding groove (52) is provided inside the adding box (51), and the adding groove (52) extends into the fixed box (2), and the side of the adding groove (52) away from the fixed box (2) is rotatably connected to the second shaft rod (53) through a bearing, and the second shaft rod (53) is fixedly connected to the outside with the second screw rod (54), and the end of the second shaft rod (53) away from the fixed box (2) is fixedly connected to the second motor (55), and the lower end of the second motor (55) is fixedly connected to the second motor frame (56), and the second motor frame (56) is fixedly connected to the rear end of the adding box (51), and the upper end of the adding box (51) is provided with an adding mechanism (7) on the side away from the fixed box (2). 5. A twin-screw extruder with a side feeding structure according to claim 1, characterized in that: the locking mechanism (6) includes a C-shaped locking plate (61) fixedly connected to the middle part of one side of the baffle (24), a locking block (62) is rotatably connected to the middle part of the front end of one side of the fixed box (2) through a pin shaft, and a screw rod (63) is fixedly connected to the front end of the locking block (62), the screw rod (63) is inserted into the inside of the locking plate (61), and a nut (64) is threadedly connected to the outside of the screw rod (63). 6. A twin-screw extruder with a side feeding structure according to claim 4, characterized in that: the adding mechanism (7) includes an adding hole (71) opened on the upper end of the adding box (51) away from the fixed box (2) side, and the upper end of the adding box (51) is fixedly connected to the fixed box (2) side with an adding bucket (72).