Double-screw extruder convenient to disassemble

Abstract

The utility model relates to the technical field of extruders, and discloses a double-screw extruder convenient to disassemble, which comprises a first outer shell, a second outer shell and an inner shell, the first outer shell and the second outer shell form an outer shell of the extruder, the first outer shell and the first inner shell are respectively provided with a driving device, and the inner shell is connected with the driving devices and is provided with a screw. The first outer shell is provided with a plurality of positioning grooves and a connecting rod penetrating through all the positioning grooves, the second outer shell is provided with positioning blocks capable of being connected into the positioning grooves, threaded parts are arranged in the positioning blocks, the positioning blocks are provided with notch parts allowing the connecting rod to pass through, a plurality of bolts are arranged in the middle of the connecting rod, and a rotating disc is arranged at one end of the connecting rod. A rocker is arranged on the turntable; the double-screw mixing pipe has the following advantages: 1, the two driving devices and the two inner shells form an adjustable double-screw mixing pipe structure, so that the volume of the mixing pipe can be adjusted; 2, the first outer shell and the second outer shell can be mutually locked by rotating the connecting rod, so that the assembly and the disassembly are convenient, and the maintenance and the cleaning are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to extruder technical field especially, it relates to a double screw extruder convenient to disassemble. BACKGROUND

[0002] Extruder is by screw rotation produced pressure and shearing force, so that material can fully carry out plasticization and uniform mixing, is the important equipment of production plastic granule. Extruder not only has single screw type, also has double screw type, double screw extruder has more capacity, greater shearing force characteristic. However, the space size of internal mixing fusion of existing double screw extruder is usually fixed, and the function is relatively single, and the existing double screw extruder is difficult to disassemble, and the equipment maintenance is not convenient, and the internal cleaning is difficult, and the use is inconvenient, and in view of this, the inventor makes new invention. SUMMARY

[0003] The utility model discloses a double screw extruder convenient to disassemble, which has the advantages of easy installation and disassembly.

[0004] To achieve the above object, the utility model discloses a double screw extruder convenient to disassemble, which comprises a first outer shell and a second outer shell that constitute an extruder outer shell, the first outer shell and the first inner shell are both provided with a driving device and an inner shell connected with the driving device, the inner shell is provided with a screw, the first outer shell is provided with a bottom plate and a first side plate, a plurality of positioning grooves and a connecting rod penetrating through all the positioning grooves are arranged above the first side plate, the second outer shell is provided with a top plate, a second side plate corresponding to the first side plate and a step portion for supporting the bottom plate, the top plate is provided with a positioning block that can be inserted into the positioning groove, a threaded portion is arranged in the positioning block, the positioning block is provided with a notch portion through which the connecting rod can pass, a plurality of bolts are arranged in the middle of the connecting rod, one end of the connecting rod is provided with a turntable, a rocker is arranged on the turntable, and the turntable can drive the connecting rod to rotate so that the bolts are locked into the positioning block.

[0005] Further, one end of the bolt is provided with a limiting portion.

[0006] Further, the first outer shell and the second outer shell are both provided with a positioning frame for fixing the driving device.

[0007] Further, the first outer shell and the second outer shell are both provided with a positioning frame for fixing the driving device.

[0008] Further, the first outer shell and the second outer shell are both provided with a positioning frame for fixing the driving device.

[0009] Further, the second support frame is arranged below the step portion, and a roller is arranged at the bottom of the second support frame.

[0010] Further, the first outer shell is provided with two fixed blocks, the middle part of the fixed block is provided with a rotatable roller, and the two ends of the connecting rod pass through the two rollers respectively.

[0011] Beneficial effects: compared with the prior art, the double-screw extruder convenient to disassemble comprises a first outer shell and a second outer shell which constitute an extruder outer shell, the first outer shell and the first inner shell are both provided with a driving device and an inner shell connected with the driving device, the inner shell is provided with a screw rod, the first outer shell is provided with a plurality of positioning grooves and a connecting rod penetrating through all the positioning grooves, the second outer shell is provided with a positioning block which can be inserted into the positioning groove, the positioning block is provided with a threaded part, the positioning block is provided with a gap part through which the connecting rod can pass, the middle part of the connecting rod is provided with a plurality of bolts, one end of the connecting rod is provided with a turntable, and the turntable is provided with a rocker; the double-screw extruder convenient to disassemble has the following advantages: 1. two driving devices and two inner shells form an adjustable double-screw mixing pipe structure, and the volume of the mixing pipe can be adjusted; 2. the first outer shell and the second outer shell can be tightly locked with each other by rotating the connecting rod, and the extruder is convenient to assemble and disassemble, and is beneficial to maintenance and cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a three-dimensional schematic view of the utility model.

[0013] Fig. 2 It is a split schematic view of the first outer shell and the second outer shell of the utility model.

[0014] Fig. 3 It is a first outer shell structure schematic view of the utility model.

[0015] Fig. 4 It is a second outer shell structure schematic view of the utility model.

[0016] The reference signs include:

[0017] The first outer shell is 1, the bottom plate is 11, the first side plate is 12, the positioning groove is 13, the connecting rod is 14, the bolt is 141, the turntable is 142, the rocker is 143, the limiting part is 144, the positioning frame is 15, the first supporting frame is 16, the supporting leg is 17, the fixed block is 18, the roller is 19, the second outer shell is 2, the top plate is 21, the second side plate is 22, the step part is 23, the positioning block is 24, the threaded part is 25, the gap part is 26, the second supporting frame is 27, the roller is 28, the driving device is 3, the inner shell is 31, the screw rod is 32, the threaded rod is 33, the connecting rod is 34, and the threaded sleeve is 35. PREFERRED EMBODIMENT

[0018] The following will be combined with the drawings Figs. 1 to 4This utility model will be described in detail.

[0019] This utility model discloses a easily disassembled twin-screw extruder, comprising a first outer shell 1 and a second outer shell 2 forming the extruder outer shell. Both the first outer shell 1 and the first inner shell 31 are equipped with a drive device 3 and an inner shell 31 connected to the drive device 3. Each inner shell 31 is equipped with a screw 32. After the first outer shell 1 and the first inner shell 31 are connected to form a complete extruder outer shell, the two inner shells 31 cooperate to form a mixing tube inside the extruder. The two screws 32 are meshed and disposed within the mixing tube for shearing and blending materials and pushing and conveying materials. The drive device 3 can drive the inner shells 31 to move. The two drive devices 3 and the two inner shells 31 form an adjustable twin-screw 32 mixing tube structure, allowing adjustment of the volume of the mixing tube and the distance between the two screws 32, facilitating high-quality mixing and blending of materials with various properties. The first outer shell 1 is provided with a bottom plate 11 and a first side plate 12. The first side plate 12 is provided with a plurality of positioning grooves 13 and a connecting rod 14 passing through all of the positioning grooves 13. The second outer shell 2 is provided with a top plate 21, a second side plate 22 corresponding to the first side plate 12, and a step portion 23 for supporting the bottom plate 11. The top plate 21 is provided with a positioning block 24 that can be connected to the positioning groove 13. The positioning block 24 is provided with a threaded portion 25 and a notch portion 26 for the connecting rod 14 to pass through. The connecting rod 14 is provided with a plurality of bolts 141 in the middle. One end of the connecting rod 14 is provided with a turntable 142. The turntable 142 is provided with a rocker arm 143. The turntable 142 can drive the connecting rod 14 to rotate, so that the bolts 141 are locked into the positioning block 24. When the first outer shell 1 and the second outer shell 2 are connected, the base plate 11 is inserted into the second outer shell 2 and abuts against the top of the step portion 23. The positioning block 24 passes through the connecting rod 14 and is inserted into the positioning groove 13. At this time, the operator only needs to hold the connecting rod 14 with one hand and push the connecting rod 14 into the positioning groove 13 so that the bolt 141 abuts against the positioning block 24. Then, the operator holds the rocker arm 143 with the other hand and rotates the turntable 142 to lock the bolt 141 into the positioning block 24, so that the positioning block 24 is fixed with the positioning groove 13. This connects and fixes the first outer shell 1 and the second outer shell 2. When disassembling the extruder outer shell, the operator only needs to turn the connecting rod 14 to unscrew the bolt 141 from the positioning block 24, so that the first outer shell 1 and the second outer shell 2 can be separated. Assembly and disassembly are convenient and easy to maintain and clean.

[0020] One end of the bolt 141 is provided with a limiting part 144. After the bolt 141 is locked into the positioning block 24, the limiting part 144 can abut against the outside of the positioning groove 13, limiting the maximum locking position of the bolt 141, and preventing the threads of the screw from jamming with the threaded part 25 inside the positioning block 24, making it difficult to unscrew the bolt 141.

[0021] The first shell body 1 and the second shell body 2 are provided with positioning frames 15 for fixing driving devices 3.

[0022] The first shell body 1 and the second shell body 2 are provided with first support frames 16 and second support frames 27 respectively.

[0023] The first support frame 16 is provided with a supporting leg 17 at the bottom, and the supporting leg 17 and the first support frame 16 form an L shape.

[0024] The second support frame 27 is arranged below the stepped portion 23, and the second support frame 27 is provided with a roller 28 at the bottom.

[0025] The first shell body 1 is provided with two fixing blocks 18, and the fixing blocks 18 are provided with rotatable rollers 19 at the middle portions.

[0026] The above is only a preferred embodiment of the present application, and for those skilled in the art, the specific implementation and application range can be changed according to the idea of the present application, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A twin-screw extruder that is easy to disassemble, comprising a first outer housing (1) and a second outer housing (2) that make up an extruder outer housing, characterized in that: The first outer shell (1) and the first inner shell (31) are provided with driving devices (3) and inner shells (31) connected with the driving devices (3), and the inner shells (31) are provided with screw rods (32), the first outer shell (1) is provided with a bottom plate (11) and a first side plate (12), a plurality of positioning grooves (13) are arranged above the first side plate (12), and a connecting rod (14) passes through all the positioning grooves (13), the second outer shell (2) is provided with a top plate (21), a second side plate (22) corresponding to the first side plate (12), and a stepped portion (23) for supporting the bottom plate (11), the top plate (21) is provided with a positioning block (24) accessible to the positioning grooves (13), the positioning block (24) is provided with a threaded portion (25) arranged therein, the positioning block (24) is provided with a gap portion (26) through which the connecting rod (14) passes, the connecting rod (14) is provided with a plurality of bolts (141) in the middle portion, one end of the connecting rod (14) is provided with a rotating disc (142), the rotating disc (142) is provided with a rocker (143), and the rotating disc (142) can drive the connecting rod (14) to rotate, so that the bolts (141) are locked into the positioning block (24).

2. A twin screw extruder according to claim 1, wherein: One end of the bolt (141) is provided with a limiting portion (144).

3. A twin screw extruder according to claim 1, wherein: The first outer shell (1) and the second outer shell (2) are provided with positioning frames (15) for fixing the driving devices (3).

4. A twin screw extruder according to claim 1, wherein: The first outer shell (1) and the second outer shell (2) are respectively provided with first support frames (16) and second support frames (27) below.

5. A twin screw extruder according to claim 4, wherein: The first support frame (16) is provided with a supporting leg (17) at the bottom, and the supporting leg (17) and the first support frame (16) combine to form an L shape.

6. A twin screw extruder according to claim 4, wherein: The second support frame (27) is arranged below the stepped portion (23), and the second support frame (27) is provided with a roller (28) at the bottom.

7. A twin screw extruder according to any one of claims 1 to 6, characterized in that: The first outer shell (1) is provided with two fixed blocks (18), the fixed blocks (18) are provided with rotatable rollers (19) in the middle portions, and the two ends of the connecting rod (14) pass through the two rollers (19) respectively.

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