Extruder with screw convenient to replace

Abstract

The extruder comprises a working table, two first fixing frames are fixedly connected to the top face of the working table, the two first fixing frames are rotationally connected with a plurality of supporting rods, an extruder assembly is arranged on the top faces of the supporting rods, and the extruder assembly comprises a shell, an installation rod and a machining groove. Two shells are fixedly connected to the top faces of the multiple supporting rods, two machining grooves are formed in the sides, close to each other, of the two shells, a fixing block is fixedly connected to the top face of the workbench, and a second rotating rod is rotationally connected to the top of the fixing block. The first rotating rod, the first spiral blade, the second spiral blade and the third spiral blade are convenient to disassemble, assemble and replace, when disassembling, assembling and replacing need to be carried out, the shell is opened through cooperation of the first fixing frame, the second fixing frame, the third fixing frame, the hydraulic rod and the supporting rod, then the shell can be disassembled and assembled through the installation assembly, disassembling, assembling and replacing are convenient, the shell is convenient to open, and the shell is convenient to disassemble and replace. And the machining groove can be conveniently cleaned, and convenience is brought to workers.

Description

Technical Field

[0001] The utility model relates to the technical field of extruders, in particular to an extruder convenient for replacing a screw rod. Background Art

[0002] An extruder is one of the types of plastic machinery and originated in the 18th century. A screw extruder relies on the pressure and shear force generated by the rotation of the screw rod, enabling the material to be fully plasticized and evenly mixed, and formed through a die. Plastic extruders can be basically classified into twin-screw extruders, single-screw extruders, and rare multi-screw extruders and screwless extruders. When an extruder is in production, according to the materials and production requirements, the screw rod needs to be frequently replaced.

[0003] However, the existing screw rods of extruders are complex in design, and the disassembly and assembly steps of the screw rods themselves are rather cumbersome. When replacing or repairing, it is very troublesome, and the material is easily left in the extrusion channel, which is inconvenient to clean, bringing a lot of inconvenience to the staff. Summary of the Utility Model

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an extruder convenient for replacing a screw rod, which has the advantage of being convenient for replacing the screw rod.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: An extruder convenient for replacing a screw rod, including a workbench, two first fixing frames are fixedly connected to the top surface of the workbench, a plurality of support rods are rotatably connected to the two first fixing frames, an extruder assembly is arranged on the top surfaces of the plurality of support rods, the extruder assembly includes a housing, a mounting rod and a processing groove, two housings are fixedly connected to the top surfaces of the plurality of support rods, two processing grooves are opened on one side of the two housings close to each other, a fixing block is fixedly connected to the top surface of the workbench, a second rotating rod is rotatably connected to the top of the fixing block, a circular groove is opened at one end of the second rotating rod close to the housing, a mounting rod is inserted into the circular groove, a first rotating rod is fixedly connected to the end of the mounting rod, and a mounting assembly is arranged inside the mounting rod;

[0006] The mounting assembly includes a through groove, a threaded rod and a cylindrical groove, the through groove is opened through the circular groove and the mounting rod, and the through groove is threadedly connected with the threaded rod;

[0007] A power assembly is arranged on the top surface of the workbench.

[0008] As a further description of the above technical solution:

[0009] A plurality of cylindrical grooves are formed inside the installation rod. A plurality of circular ring pieces are slidably connected inside the plurality of cylindrical grooves. A plurality of sliding rods are fixedly sleeved with the plurality of circular ring pieces. The plurality of sliding rods are slidably connected to the plurality of cylindrical grooves. A plurality of insertion slots are formed in the side wall of the circular groove. The plurality of sliding rods are inserted into the plurality of insertion slots.

[0010] As a further description of the above technical solution:

[0011] One end of a plurality of springs is fixedly connected to the side walls of the plurality of circular ring pieces. The other ends of the plurality of springs are fixedly connected to the side walls of the plurality of cylindrical grooves. The plurality of springs are movably sleeved on the plurality of sliding rods. The threaded rod movably contacts the ends of the plurality of sliding rods.

[0012] As a further description of the above technical solution:

[0013] A first spiral blade, a second spiral blade and a third spiral blade are fixedly connected in sequence from right to left on the circumferential side of the rotating rod. Two feeding ports are formed in the tops of the two shells. Two baffle rings are fixedly connected to the side walls of the two shells.

[0014] As a further description of the above technical solution:

[0015] The first spiral blade, the second spiral blade and the third spiral blade movably contact the side wall of the processing groove.

[0016] As a further description of the above technical solution:

[0017] The power assembly includes a mounting frame, a motor and a rotating shaft. The mounting frame is fixedly connected to the top surface of the workbench. The motor is fixedly connected to the top surface of the mounting frame. The rotating shaft is fixedly connected to the motor shaft. The rotating shaft is rotatably connected to the fixed block.

[0018] As a further description of the above technical solution:

[0019] Two transmission wheels are fixedly sleeved on the circumferential sides of the rotating shaft and the second rotating rod. The two transmission wheels are connected by a transmission belt.

[0020] As a further description of the above technical solution:

[0021] A plurality of second fixing frames are fixedly connected to both sides of the top surface of the workbench. One ends of a plurality of hydraulic rods are rotatably connected to the plurality of second fixing frames. The other ends of the plurality of hydraulic rods are rotatably connected to a plurality of third fixing frames. The plurality of third fixing frames are fixedly connected to the side walls of the two shells.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are:

[0023] 1. In the present utility model, the first rotating rod, the first spiral blade, the second spiral blade and the third spiral blade are convenient to disassemble, replace and install. When disassembly, replacement and installation are required, the housing can be opened through the cooperation of the first fixing frame, the second fixing frame, the third fixing frame, the hydraulic rod and the support rod, and then it can be disassembled and installed through the installation component. The disassembly, replacement and installation are convenient, and the housing is convenient to open, which is convenient for cleaning the processing groove and brings convenience to the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 1 shows a schematic diagram of the overall structure according to an embodiment of the present utility model;

[0025] Figure 2 FIG. 2 shows a schematic sectional structure according to an embodiment of the present utility model;

[0026] Figure 3 FIG. 3 shows a schematic diagram of a partial section and an installation component structure according to an embodiment of the present utility model.

[0027] LEGEND DESCRIPTION:

[0028] 1. Workbench; 2. First fixing frame; 3. Support rod;

[0029] 4. Extruder assembly; 41. Housing; 42. Installation rod; 43. Processing groove; 44. First rotating rod; 45. First spiral blade; 46. Second spiral blade; 47. Third spiral blade; 48. Material blocking ring; 49. Feed inlet;

[0030] 5. Fixed block; 6. Second rotating rod;

[0031] 7. Power assembly; 71. Installation frame; 72. Motor; 73. Rotating shaft; 74. Driving wheel; 75. Transmission belt;

[0032] 8. Circular groove;

[0033] 9. Installation component; 91. Through groove; 92. Threaded rod; 93. Cylindrical groove; 94. Sliding rod; 95. Ring plate; 96. Spring; 97. Slot;

[0034] 10. Second fixing frame; 11. Hydraulic rod; 12. Third fixing frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative work shall fall within the protection scope of the present utility model.

[0036] Please refer to Figures 1-3 As shown in Figures 1-3 , the present utility model provides a technical solution: an extruder facilitating the replacement of a screw rod, including a workbench 1. On the top surface of the workbench 1, two first fixing frames 2 are fixedly connected. A plurality of support rods 3 are rotatably connected to the two first fixing frames 2. On the top surfaces of the plurality of support rods 3, an extruder assembly 4 is provided. The extruder assembly 4 includes a housing 41, a mounting rod 42 and a processing groove 43. Two housings 41 are fixedly connected to the top surfaces of the plurality of support rods 3. Two processing grooves 43 are formed on one side of the two housings 41 close to each other. A fixing block 5 is fixedly connected to the top surface of the workbench 1. A second rotating rod 6 is rotatably connected to the top of the fixing block 5. A circular groove 8 is formed at one end of the second rotating rod 6 close to the housing 41. The mounting rod 42 is inserted into the circular groove 8. A first rotating rod 44 is fixedly connected to the end of the mounting rod 42. An installation assembly 9 is provided inside the mounting rod 42;

[0037] Among them, the cooperation between the first fixing frame 2 and the support rod 3 can unfold the housing 41, facilitating the removal and replacement of the internal mounting rod 42 and the first rotating rod 44, and at the same time facilitating the cleaning of the processing groove 43. The staff connects the second rotating rod 6 and the first rotating rod 44 through the installation assembly 9.

[0038] The installation assembly 9 includes a through groove 91, a threaded rod 92 and a cylindrical groove 93. The circular groove 8 and the mounting rod 42 are provided with a through groove 91 in a penetrating manner. The threaded rod 92 is threadedly connected to the through groove 91;

[0039] Among them, when installing the second rotating rod 6 and the first rotating rod 44, insert the mounting rod 42 into the circular groove 8, align the through groove 91, and install the threaded rod 92 into the through groove 91 to complete the installation of the second rotating rod 6 and the first rotating rod 44.

[0040] A power assembly 7 is provided on the top surface of the workbench 1;

[0041] Among them, the power assembly 7 provides power for the extruder assembly 4.

[0042] Specifically, as Figures 1-3 shown, a plurality of cylindrical grooves 93 are formed inside the mounting rod 42. A plurality of circular ring pieces 95 are slidably connected inside the plurality of cylindrical grooves 93. A plurality of sliding rods 94 are fixedly sleeved on the plurality of circular ring pieces 95. The plurality of sliding rods 94 are slidably connected to the plurality of cylindrical grooves 93. A plurality of insertion slots 97 are formed on the side wall of the circular groove 8. The plurality of sliding rods 94 are inserted into the plurality of insertion slots 97.

[0043] One ends of a plurality of springs 96 are fixedly connected to the side walls of the plurality of circular ring pieces 95. The other ends of the plurality of springs 96 are fixedly connected to the side walls of the plurality of cylindrical grooves 93. The plurality of springs 96 are movably sleeved on the plurality of sliding rods 94. The threaded rod 92 is in movable contact with the ends of the plurality of sliding rods 94.

[0044] On the circumferential side of the first rotating rod 44, a first spiral blade 45, a second spiral blade 46 and a third spiral blade 47 are fixedly connected in sequence from right to left. Two feeding ports 49 are formed at the tops of the two shells 41, and two material blocking rings 48 are fixedly connected to the side walls of the two shells 41.

[0045] The first spiral blade 45, the second spiral blade 46 and the third spiral blade 47 are in movable contact with the side wall of the processing groove 43.

[0046] The power assembly 7 includes a mounting frame 71, a motor 72 and a rotating shaft 73. The mounting frame 71 is fixedly connected to the top surface of the workbench 1, the motor 72 is fixedly connected to the top surface of the mounting frame 71, the rotating shaft 73 is fixedly connected to the rotating shaft of the motor 72, and the rotating shaft 73 is rotatably connected to the fixed block 5.

[0047] Two transmission wheels 74 are fixedly sleeved on the circumferential sides of the rotating shaft 73 and the second rotating rod 6, and the two transmission wheels 74 are connected by a transmission belt 75.

[0048] A plurality of second fixing frames 10 are fixedly connected to both sides of the top surface of the workbench 1. One ends of a plurality of hydraulic rods 11 are rotatably connected to the plurality of second fixing frames 10, and the other ends of the plurality of hydraulic rods 11 are rotatably connected to a plurality of third fixing frames 12, and the plurality of third fixing frames 12 are fixedly connected to the side walls of the two shells 41.

[0049] Among them, when the device is in normal use, the motor 72 is turned on. The rotation of the motor 72 drives the rotation of the rotating shaft 73. The rotation of the rotating shaft 73 drives the rotation of a transmission wheel 74. The rotation of a transmission wheel 74 drives the rotation of the transmission belt 75. The rotation of the transmission belt 75 drives the rotation of the other transmission wheel 74. The rotation of the other transmission wheel 74 drives the rotation of the second rotating rod 6, the mounting rod 42 and the first rotating rod 44. The material enters the processing tank 43 from the feed port 49. The material moves along the first spiral blade 45, the second spiral blade 46 and the third spiral blade 47 towards the outlet direction. The blade pitches and blade sizes of the first spiral blade 45, the second spiral blade 46 and the third spiral blade 47 are different, which can better extrude the material. A heating structure is installed in the housing 41, which is not the main structure of this application, so it is not shown. According to different materials, different first rotating rods 44 need to be replaced. The first spiral blade 45, the second spiral blade 46 and the third spiral blade 47 on different first rotating rods 44 are also different, which is convenient for processing different materials. When replacing the first rotating rod 44, the hydraulic rod 11 moves downward to drive the third fixing frame 12 to move downward. The third fixing frame 12 drives the support rod 3 on the housing 41 to rotate along the first fixing frame 2. After the housing 41 is opened, the threaded rod 92 is rotated. The threaded rod 92 rotates away from the through slot 91. The spring 96 uses its elastic force to restore the circular ring piece 95 to its original position. The circular ring piece 95 drives the sliding rod 94 to leave the slot 97. After the sliding rod 94 leaves the slot 97, the staff removes the mounting rod 42 on the first rotating rod 44 from the circular groove 8, and replaces it with a new first rotating rod 44, the first spiral blade 45, the second spiral blade 46 and the third spiral blade 47. When installing, just operate according to the reverse steps. When the housing 41 is opened, the inside of the housing 41 can be cleaned.

[0050] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An extruder for convenient screw replacement, comprising a workbench (1), characterized in that: The top surface of the workbench (1) is fixedly connected to two fixing frames (2), and the two fixing frames (2) are rotatably connected to a plurality of support rods (3). The top surfaces of the plurality of support rods (3) are provided with an extruder assembly (4), and the extruder assembly (4) comprises a shell (41), a mounting rod (42) and a processing groove (43). The top surfaces of the plurality of support rods (3) are fixedly connected to two shells (41), and two processing grooves (43) are provided on one side of the two shells (41) close to each other. The top surface of the workbench (1) is fixedly connected to a fixing block (5), and the top of the fixing block (5) is rotatably connected to a rotating rod (6). The rotating rod (6) is provided with a circular groove (8) at one end close to the shell (41), and the mounting rod (42) is inserted into the circular groove (8). The end of the mounting rod (42) is fixedly connected to a rotating rod (44), and the mounting assembly (9) is provided inside the mounting rod (42); The mounting assembly (9) comprises a through slot (91), a threaded rod (92) and a cylindrical slot (93); the through slot (91) is formed through the circular slot (8) and the mounting rod (42); and the threaded rod (92) is threadedly connected to the through slot (91); The top surface of the workbench (1) is provided with a power assembly (7).

2. The extruder with convenient screw replacement according to claim 1, characterized in that: The installation rod (42) is provided with a plurality of columnar grooves (93) inside, a plurality of circular ring plates (95) are slidably connected inside the plurality of columnar grooves (93), a plurality of sliding rods (94) are fixedly sleeved on the plurality of circular ring plates (95), a plurality of sliding rods (94) are slidably connected to the plurality of columnar grooves (93), a plurality of slots (97) are provided on the side wall of the circular groove (8), and a plurality of sliding rods (94) are plugged into the plurality of slots (97).

3. The extruder with convenient screw replacement according to claim 2, characterized in that: The side walls of the plurality of circular ring sheets (95) are fixedly connected to one end of a plurality of springs (96), the other ends of the plurality of springs (96) are fixedly connected to the side walls of the plurality of columnar grooves (93), the plurality of springs (96) are movably sleeved on the plurality of sliding rods (94), and the threaded rods (92) are movably in contact with the ends of the plurality of sliding rods (94).

4. The extruder with convenient screw replacement according to claim 1, characterized in that: The rotating rod one (44) is fixedly connected to spiral blade one (45), spiral blade two (46) and spiral blade three (47) in sequence from right to left on its circumference, the two shells (41) are provided with two feed ports (49) on their tops, and the two shells (41) are fixedly connected to two baffle rings (48) on their side walls.

5. The extruder with convenient screw replacement according to claim 4, characterized in that: The spiral blade 1 (45), the spiral blade 2 (46) and the spiral blade 3 (47) movably contact the side wall of the processing groove (43).

6. The extruder with convenient screw replacement according to claim 1, characterized in that: The power assembly (7) comprises a mounting frame (71), a motor (72) and a rotating shaft (73); the top surface of the workbench (1) is fixedly connected to the mounting frame (71); the top surface of the mounting frame (71) is fixedly connected to the motor (72); the rotating shaft of the motor (72) is fixedly connected to the rotating shaft (73); and the rotating shaft (73) is rotatably connected to the fixed block (5).

7. The extruder with convenient screw replacement according to claim 6, characterized in that: Two transmission wheels (74) are fixedly sleeved on the two circumferential sides of the rotating shaft (73) and the rotating rod (6), and the two transmission wheels (74) are transmission-connected with a transmission belt (75).

8. The extruder with convenient screw replacement according to claim 1, characterized in that: A plurality of fixing frames (10) are fixedly connected to both sides of the top surface of the workbench (1); the plurality of fixing frames (10) are rotatably connected to one end of a plurality of hydraulic rods (11); the other ends of the plurality of hydraulic rods (11) are rotatably connected to a plurality of fixing frames (12); and the plurality of fixing frames (12) are fixedly connected to the side walls of the two shells (41).

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