Screw extruder for producing PVC (polyvinyl chloride) drainage pipe

Abstract

The utility model relates to the field of PVC (polyvinyl chloride) drainage pipe production, in particular to a screw extruder for PVC drainage pipe production. According to the screw extruder for producing the PVC drainage pipe, the bottom frame and the first rotating frame can be cleaned, the operation is simple, the cleaning difficulty is reduced, and the use convenience is improved. A screw extruder for PVC drain pipe production comprises a base, supporting frames, a common motor, a feeding cylinder and the like, the left supporting frame and the right supporting frame are connected to the upper side of the right portion of the base, the common motor is connected between the upper portions of the supporting frames, and the feeding cylinder is connected to the upper side of the left portion of the base. The first rotating frame is rotated by hand to be opened, the servo motor is started to operate reversely, then the lead screw is driven to rotate reversely, the bottom frame is made to move downwards, the bottom frame is made to be separated from the extruding and pushing threaded rod, and therefore the bottom frame and the first rotating frame can be cleaned, operation is easy, the cleaning difficulty is reduced, and use convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of PVC drainage pipe production, in particular to a screw extruder for producing PVC drainage pipes. Background Art

[0002] PVC (polyvinyl chloride) is a common plastic material. PVC drain pipe is a commonly used pipe material, which is widely used in the transmission of drinking water, industrial sewage and other liquids. Its main features are lightness, corrosion resistance, high cost-effectiveness and easy installation.

[0003] The existing PVC drainage pipe production generally pours the raw materials into an extruder, then starts the extruder to extrude the raw materials, and then sends them into a mold for production. After the current extruder extrude the raw materials, the screw needs to be manually disassembled and then the extruder is cleaned. The operation is inconvenient and the cleaning is troublesome, resulting in reduced convenience in the use of the equipment.

[0004] Therefore, it is necessary to design a PVC drainage pipe production screw extruder that can clean the base frame and the first rotating frame, is simple to operate, reduces the difficulty of cleaning, and improves the convenience of use. Utility Model Content

[0005] In order to overcome the shortcomings of the current extruder that after extruding the raw materials, the screw needs to be manually disassembled and then the extruder needs to be cleaned, which is inconvenient to operate and troublesome to clean, resulting in reduced convenience in using the equipment, the utility model provides a screw extruder for producing PVC drainage pipes that can clean the base frame and the first rotating frame, is simple to operate, reduces the difficulty of cleaning, and improves convenience in use.

[0006] The technical solution of the utility model is: a screw extruder for producing PVC drainage pipes, including a base, a support frame, a common motor, an extrusion screw and a feed barrel, the upper right side of the base is connected to two left and right support frames, the upper parts of the support frames are connected to a common motor, the upper left side of the base is connected to a feed barrel, and the output shaft of the common motor passes through the feed barrel and is connected to the extrusion screw.

[0007] As a preferred technical solution of the utility model, it also includes supporting feet, a base frame and a first rotating frame. There are multiple supporting feet, all of which are located on the left side of the base. The base frame is slidably connected between the supporting feet, the base frame is in contact with the extrusion screw, and the first rotating frame is rotatably connected to the upper rear side of the base frame.

[0008] As a preferred technical solution of the utility model, the supporting legs are all L-shaped.

[0009] As an optimal technical solution of the utility model, it also includes a servo motor and a screw rod. The servo motor is connected to the inner side of the lower part of the supporting foot. The output shaft of the servo motor is connected to the screw rod. The screw rod is rotatably connected to the adjacent supporting foot, and the screw rod is connected to the base frame through a thread.

[0010] As a preferred technical solution of the utility model, it also includes a flat belt, a first fixed block and a second rotating frame. The first fixed block is connected to the front side of the upper part of the left support frame, the left side of the front of the first fixed block is rotatably connected to the second rotating frame, the middle part of the second rotating frame is connected to a pulley, and the output shaft of the ordinary motor is also connected to a pulley. The pulley on the output shaft of the ordinary motor is located on the right side of the extrusion screw, and a flat belt is wrapped around the two pulleys.

[0011] As a preferred technical solution of the utility model, it also includes a second fixed block and a dredging frame. The upper front side of the feed barrel is connected to two upper and lower second fixed blocks. The dredging frame is slidably connected between the second fixed blocks, and the dredging frame is in contact and cooperate with the second rotating frame.

[0012] Beneficial effects: 1. The utility model opens the first rotating frame by manually rotating the first rotating frame, starts the servo motor to operate in reverse, and then drives the screw rod to rotate in the reverse direction, so that the base frame moves downward, and the base frame is separated from the pushing screw rod, so that the base frame and the first rotating frame can be cleaned, the operation is simple, the difficulty of cleaning is reduced, and the convenience of use is improved.

[0013] 2. The utility model pours the PVC raw material into the feed barrel, drives the extrusion screw and the pulley to rotate through an ordinary motor, drives the flat belt to rotate, drives the second rotating frame to rotate, makes the second rotating frame contact with the dredging frame, and then makes the dredging frame move up and down, thereby dredging the PVC raw material in the feed barrel, preventing the accumulation of PVC raw materials from causing blockage of the feed barrel, improving the efficiency of PVC raw material extrusion, and improving the efficiency of PVC drainage pipe production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 This is a schematic diagram of the first cross-sectional three-dimensional structure of the utility model.

[0016] Figure 3 This is a schematic diagram of a second cross-sectional three-dimensional structure of the utility model.

[0017] Markings in the figure are: 1-base, 2-support frame, 3-ordinary motor, 4-pushing screw, 5-feeding barrel, 6-support foot, 7-base frame, 8-first rotating frame, 9-servo motor, 10-screw, 11-flat belt, 12-first fixed block, 13-second rotating frame, 14-second fixed block, 15-dredging frame. DETAILED DESCRIPTION

[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

[0019] A screw extruder for producing PVC drainage pipes, such as Figure 1-Figure 3 As shown, it includes a base 1, a support frame 2, a common motor 3, an extrusion screw 4, a feed barrel 5, a support foot 6, a base frame 7, a first rotating frame 8, a servo motor 9, a screw 10, a flat belt 11, a first fixed block 12, a second rotating frame 13, a second fixed block 14 and a dredging frame 15. The upper right side of the base 1 is connected to the left and right support frames 2, the upper part of the support frames 2 is connected to the common motor 3, the upper left side of the base 1 is connected to the feed barrel 5, the output shaft of the common motor 3 passes through the feed barrel 5 and is connected to the extrusion screw 4, four support feet 6 are provided, all of which are L-shaped, and all of which are located on the left side of the base 1, and the base frame 7 is slidably connected between the support feet 6, the base frame 7 is in contact with the extrusion screw 4, and the upper rear side of the base frame 7 is rotatably connected to the first rotating frame 8. A servo motor 9 is connected to the inner side of the lower part of 6, and a screw rod 10 is connected to the output shaft of the servo motor 9. The screw rod 10 is rotatably connected to the adjacent supporting foot 6, and the screw rod 10 is connected to the base frame 7 through a thread. A first fixed block 12 is connected to the front side of the upper part of the left support frame 2, and a second rotating frame 13 is rotatably connected to the left side of the front of the first fixed block 12, and a pulley is connected to the middle of the second rotating frame 13. A pulley is also connected to the output shaft of the ordinary motor 3. The pulley on the output shaft of the ordinary motor 3 is located on the right side of the extrusion screw 4, and a flat belt 11 is wound around the two pulleys. An upper and lower second fixed blocks 14 are connected to the front side of the upper part of the feed barrel 5, and a dredging frame 15 is slidably connected between the second fixed blocks 14, and the dredging frame 15 is in contact with the second rotating frame 13.

[0020] When it is necessary to produce PVC drainage pipes, the device can be used. The device is brought to the place where the PVC drainage pipes are needed to be produced, so that the base 1 is in contact with the ground, and then the servo motor 9 on the supporting feet 6 is started. The supporting feet 6 are all L-shaped. The servo motor 9 drives the screw 10 to rotate, and then drives the base frame 7 to move upward, so that the base frame 7 is in contact with the extrusion screw 4, and then the first rotating frame 8 is turned by hand to close, and then the ordinary motor 3 is started, and the extrusion screw 4 is driven to rotate by the ordinary motor 3. Then, the PVC raw material is poured into the feeding barrel 5, and the PVC raw material is pushed to the left by the extrusion screw 4 for extrusion. When the ordinary motor 3 drives the extrusion screw 4 to rotate, it also drives the pulley to rotate, and then drives the flat belt 11 to rotate, and drives the second The rotating frame 13 rotates, so that the second rotating frame 13 contacts the unblocking frame 15, and then the unblocking frame 15 moves up and down, so as to unblock the PVC raw materials in the feed barrel 5, prevent the accumulation of PVC raw materials and cause the feed barrel 5 to be blocked, improve the efficiency of PVC raw material extrusion, and improve the efficiency of PVC drainage pipe production. After the extrusion is completed, turn off the ordinary motor 3, and then turn the first rotating frame 8 by hand to open it, start the servo motor 9 to operate in the reverse direction, and then drive the screw 10 to rotate in the reverse direction, so that the base frame 7 moves downward, so that the base frame 7 is disengaged from the extrusion screw 4. After moving to the appropriate position, turn off the servo motor 9, so that the base frame 7 and the first rotating frame 8 can be cleaned. The operation is simple, the difficulty of cleaning is reduced, and the convenience of use is improved.

[0021] The technical principles of the embodiments of the present utility model are described above in combination with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present utility model, and cannot be interpreted in any way as limiting the protection scope of the embodiments of the present utility model. Based on the explanations here, technicians in this field can think of other specific implementation methods of the embodiments of the present utility model without creative work, and these methods will fall within the protection scope of the embodiments of the present utility model.

Claims

1. A screw extruder for producing PVC drainage pipes, characterized by: The invention comprises a base (1), a support frame (2), a common motor (3), an extrusion screw (4) and a feed barrel (5), wherein the upper right side of the base (1) is connected to two left and right support frames (2), the upper parts of the support frames (2) are connected to the common motor (3), the upper left side of the base (1) is connected to the feed barrel (5), and the output shaft of the common motor (3) passes through the feed barrel (5) and is connected to the extrusion screw (4); the invention also comprises a support foot (6), a bottom frame (7) and a first rotating frame (8), wherein a plurality of support feet (6) are provided, and the support feet (6) are all located On the left side of the base (1), a base frame (7) is slidably connected between the support legs (6), the base frame (7) is in contact with the extrusion screw (4), and the upper rear side of the base frame (7) is rotatably connected to a first rotating frame (8); it also includes a servo motor (9) and a screw rod (10), the inner side of the lower part of the support legs (6) is connected to the servo motor (9), the output shaft of the servo motor (9) is connected to the screw rod (10), the screw rod (10) is rotatably connected to the adjacent support legs (6), and the screw rod (10) is connected to the base frame (7) through a thread.

2. A screw extruder for producing PVC drainage pipes as claimed in claim 1, characterized in that: The supporting legs (6) are all L-shaped.

3. A screw extruder for producing PVC drainage pipes as claimed in claim 2, characterized in that: It also includes a flat belt (11), a first fixed block (12) and a second rotating frame (13), wherein the upper front side of the left support frame (2) is connected to the first fixed block (12), the left front side of the first fixed block (12) is rotatably connected to the second rotating frame (13), the middle part of the second rotating frame (13) is connected to a pulley, the output shaft of the common motor (3) is also connected to a pulley, the pulley on the output shaft of the common motor (3) is located on the right side of the extrusion screw (4), and the flat belt (11) is wound around the two pulleys.

4. A screw extruder for producing PVC drainage pipes as claimed in claim 3, characterized in that: It also includes a second fixed block (14) and a dredging frame (15). The upper front side of the feed barrel (5) is connected to two upper and lower second fixed blocks (14). The dredging frame (15) is slidably connected between the second fixed blocks (14). The dredging frame (15) is in contact with the second rotating frame (13).

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