CN111823623A - Production process of ultrahigh molecular weight polyethylene pipe - Google Patents
Production process of ultrahigh molecular weight polyethylene pipe Download PDFInfo
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- CN111823623A CN111823623A CN202010567333.8A CN202010567333A CN111823623A CN 111823623 A CN111823623 A CN 111823623A CN 202010567333 A CN202010567333 A CN 202010567333A CN 111823623 A CN111823623 A CN 111823623A
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- pipe
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- cutting
- molecular weight
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production process of an ultrahigh molecular weight polyethylene pipe, which specifically comprises the following steps of mixing raw materials: mixing PE resin through a rubber mixing mill; tube extrusion: adding the mixed PE raw material into a feeder; traction and shaping: introducing the pipe with uniform wall thickness extruded from the extruder into a sizing copper sleeve and cooling the pipe through an air box area; winding the pipe material with a film: the cooled pipe is pushed by a traction machine to be sent to a film winding process, and a film winding machine suitable for the pipe is selected; cutting the pipe: conveying the pipe subjected to film winding to a cutting device for cutting; weighing the pipe: the cut pipe is pushed to a weighing mechanism to be weighed under the pushing of the subsequent pipe; stacking the frame body: and weighing the qualified pipes, and conveying the pipes to a frame body for stacking. The rear section of the whole process is directly weighed after being cut, so that an additional process is omitted, and seamless butt joint is realized in the conveying and stacking process.
Description
The technical field is as follows:
the invention belongs to the field of PE pipe preparation, and particularly relates to a production process of an ultrahigh molecular weight polyethylene pipe.
Background art:
with the development of the society, the PE pipe is widely applied, compared with the traditional iron pipe, the PE pipe has the advantages of light weight, corrosion resistance, small fluid resistance, long service life and good sanitary performance, the problems of scaling and the like can not occur, a large number of manufacturers for producing the PE pipe are generated in the society, but the discharged pipe is not weighed in the production process of the PE pipe in the market at present, a subsequent new process is needed, and the flow is increased.
Disclosure of Invention
The invention aims to solve the technical problem of providing a production process of an ultrahigh molecular weight polyethylene pipe.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a production process of an ultrahigh molecular weight polyethylene pipe comprises the following steps:
(1) mixing raw materials: mixing PE resin through a rubber mixing mill;
(2) tube extrusion: adding the mixed PE raw material into a feeder;
(3) traction and shaping: introducing the pipe with uniform wall thickness extruded from the extruder into a sizing copper sleeve and cooling the pipe through an air box area;
(4) winding the pipe material with a film: the cooled pipe is pushed by a traction machine to be sent to a film winding process, and a film winding machine suitable for the pipe is selected;
(5) cutting the pipe: conveying the pipe subjected to film winding to a cutting device for cutting;
(6) weighing the pipe: the cut pipe is pushed to a weighing mechanism to be weighed under the pushing of the subsequent pipe;
(7) stacking the frame body: and weighing the qualified pipes, and conveying the pipes to a frame body for stacking.
The further technology of the invention is as follows:
preferably, step (4) is around membrane machine and is included the frame, the round hole in the frame for current tubular product, frame one side is equipped with the gear carousel outward, gear carousel and round hole concentric circles, and the gear carousel power supply derives from the inside motor that sets up of frame, drives the gear carousel through the gear and rotates, is equipped with the membrane on the disc and rolls up the support, is equipped with the membrane book on the membrane book support.
Preferably, in the step (4), the film opening is heat-sealed while the film is wound, specifically, the heating rod is arranged on the other side of the frame, one end of the heating rod is fixed on the frame, and the other end of the heating rod is in contact with the overlapped surface of the tube wound with the film for heat-sealing.
Preferably, the step (5) tubular product cutting adopts the synchronous motion cutting, specifically includes the workstation, is equipped with the mobile station on the workstation, is equipped with the pipe support that has the tubular product passageway on the mobile station, is equipped with the cutting machine on the pipe support, is equipped with the cylinder on the pipe support, and the cylinder drives the cutting machine and reciprocates, the pipe support inner wall is equipped with the spout, and the stability that the cutting machine reciprocated is guaranteed in the removal of spout in the cutting machine. The lower part of the moving platform moves back and forth through a reciprocating screw rod arranged in the workbench, the power source of the screw rod is connected with a motor, a slide way is arranged on the workbench, a moving block is connected to the lower part of the moving platform and penetrates through the slide way to be connected to the reciprocating screw rod, the moving speed of the moving platform is the same as the advancing speed of the pipe, and the cutting synchronism is guaranteed. The time of the cylinder propulsion is controlled by an external controller, and the cutting time is set according to the length of different pipes required.
Preferably, the weighing mechanism in the step (6) comprises a support, a base plate is arranged on the support, a weight sensor is arranged on the base plate, the weight sensor is connected with an analog-to-digital converter through an amplifying circuit, processed digital signals are output to a CPU for operation control, the CPU outputs the results to a display according to keyboard commands and programs, a U-shaped frame is arranged above the weight sensor, a shaft is arranged on the U-shaped frame, and a roller is sleeved on the shaft.
Preferably, the bracket is also provided with a fixed shaft, the fixed shaft is also sleeved with a roller, and the height of the roller is lower than that of the roller on the U-shaped frame.
Preferably, support one side is equipped with vertical frame, and vertical frame top is equipped with horizontal frame, and horizontal frame is the downward sloping form, be equipped with the pneumatic cylinder on the support, be equipped with the roof on the pneumatic cylinder, the roof surface is the inclined plane, and just the same with horizontal frame incline direction, the maximum height and the vertical frame of pneumatic cylinder jack-up roof flush, and the minimum height that highly is less than the gyro wheel height of pneumatic cylinder shrink roof.
Preferably, be equipped with the fixed plate on the support, the pneumatic cylinder is fixed in the fixed plate below, and the body of rod on the pneumatic cylinder passes the fixed plate and connects the roof, roof below both sides are equipped with the guide bar, and the guide bar passes the fixed plate.
The invention has reasonable design and simple structure, and has the following characteristics: the weighing is directly carried out after the rear section of the whole process is cut, so that an additional process is omitted, and seamless butt joint is realized in the conveying and stacking process.
And after the film is wound, heat sealing is synchronously performed, so that the film winding looseness caused by cutting in a subsequent cutting process is avoided, and the heat sealing ensures the completeness of the film coating of each section of the pipe.
The cutting is carried out synchronously without stopping, thereby realizing uninterrupted work and stable propulsion.
And all process sections are perfectly butted.
Description of the drawings:
in order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts;
FIG. 1 is a process flow diagram;
FIG. 2 is a simplified diagram of a film winding machine;
FIG. 3 is a simplified diagram of the cutting device;
FIG. 4 is a schematic top view of the weighing mechanism;
FIG. 5 is a schematic view of the structure A-A of FIG. 4;
FIG. 6 is a schematic view of the structure B-B in FIG. 4;
FIG. 7 is a schematic view of the structure C-C in FIG. 4.
The specific implementation structure is as follows:
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1, a production process of an ultra-high molecular weight polyethylene pipe specifically comprises the following steps:
(1) mixing raw materials: mixing PE resin through a rubber mixing mill;
(2) tube extrusion: adding the mixed PE raw material into a feeder;
(3) traction and shaping: introducing the pipe with uniform wall thickness extruded from the extruder into a sizing copper sleeve and cooling the pipe through an air box area;
(4) winding the pipe material with a film: the cooled pipe is pushed by a traction machine to be sent to a film winding process, and a film winding machine suitable for the pipe is selected; as shown in fig. 2, the film winding machine comprises a frame 20, a circular hole 21 in the frame for passing pipes, a gear turntable 22 is arranged outside one side of the frame, the gear turntable and the circular hole are concentric, a power source of the gear turntable is derived from a motor 23 arranged inside the frame, the gear turntable is driven by a gear 24 to rotate, a film roll support 25 is arranged on the disc, and a film roll 26 is arranged on the film roll support.
And (3) performing heat sealing on the film opening while winding the film, specifically, performing heat sealing on a heating rod 27 arranged on the other side of the rack, wherein one end of the heating rod is fixed on the rack, and the other end of the heating rod is contacted with the overlapped surface of the pipe wound with the film. The heating rod power supply is derived from a 220V power supply.
(5) Cutting the pipe: conveying the pipe subjected to film winding to a cutting device for cutting; the cutting of tubular product adopts the synchronous motion cutting, specifically includes workstation 30 as figure 3, is equipped with the mobile station 31 on the workstation, is equipped with the pipe support 32 that has the tubular product passageway on the mobile station, is equipped with cutting machine 33 in the pipe support, is equipped with cylinder 34 on the pipe support, and the cylinder drives the cutting machine and reciprocates, the pipe support inner wall is equipped with spout 35, and the stability that the cutting machine reciprocated is guaranteed in the removal of spout to the cutting machine. The lower part of the moving platform moves back and forth through a reciprocating screw rod 36 arranged in the workbench, the power source of the screw rod is connected with a motor 37, a slide rail 38 is arranged on the workbench, a moving block 39 is connected to the lower part of the moving platform and penetrates through the slide rail to be connected to the reciprocating screw rod, the moving speed of the moving platform is the same as the advancing speed of the pipe, and the cutting synchronism is ensured. The time of the cylinder propulsion is controlled by an external controller, and the cutting time is set according to the length of different pipes required. The opening and closing of the motor are also controlled by an external controller, and the synchronism of the motor and the air cylinder is ensured when the motor drives the mobile station to advance.
(6) Weighing the pipe: the cut pipe is pushed to a weighing mechanism to be weighed under the pushing of the subsequent pipe; referring to fig. 4-7, the weighing mechanism comprises a support 1, a backing plate 2 is arranged on the support, a weight sensor 3 is arranged on the backing plate, the weight sensor is connected with an analog-to-digital converter through an amplifying circuit, processed digital signals are output to a CPU for operation control, the CPU outputs the results to a display 4 according to keyboard commands and programs, a U-shaped frame 5 is arranged above the weight sensor, a shaft is arranged on the U-shaped frame, and a roller 7 is sleeved on the shaft.
When the PE drain pipe passes through the roller, pressure is applied to the sensor, the sensor is elastically deformed, so that impedance is changed, and meanwhile, excitation voltage is changed to output a changed analog signal. The signal is amplified by the amplifying circuit and output to the analog-to-digital converter. The digital signals converted into the signals convenient for processing are output to the CPU for operation control. The CPU outputs such results to the display according to the keyboard commands and the program.
For the simplification of structure, weight sensor need not to design too much, in this embodiment, respectively be equipped with 1 in the front and back end of support can, under this condition, the gyro wheel span of front and back is big, and PE drain pipe middle section does not have the support, consequently, increases several fixed gyro wheels in the middle section, and the structure is as follows:
the support is also provided with a fixed shaft 6, the fixed shaft is also sleeved with a roller, and the height of the roller is lower than that of the roller on the U-shaped frame.
The roller of the fixed shaft is lower than the lowest pressing height of the roller on the U-shaped frame, so that the influence of the symmetrical weight is avoided.
Above-mentioned structure has played incessant check weighing, and whether check weight meets the requirements, stacks by oneself in order to measure the back, collects, provides a hoisting device, specifically does:
support one side is equipped with vertical frame 8, and vertical frame top is equipped with horizontal frame 9, and horizontal frame is the downward sloping form, be equipped with pneumatic cylinder 10 on the support, be equipped with roof 11 on the pneumatic cylinder, the roof surface is the inclined plane, and just the same with horizontal frame incline direction, the maximum height and the vertical frame of pneumatic cylinder jack-up roof flush, and the minimum height that highly is less than the gyro wheel height of pneumatic cylinder shrink roof.
Promote the roof through the pneumatic cylinder, roof jack-up drain pipe because the roof surface is the inclined plane, and this inclined plane forms an contained angle with vertical frame, when guaranteeing to promote the drain pipe, the drain pipe can not appear droing, promotes to the top, rolls out by horizontal frame, falls into the collection frame that the below waited for.
The support is provided with a fixing plate 12, the hydraulic cylinder is fixed below the fixing plate, a rod body on the hydraulic cylinder penetrates through the fixing plate to be connected with the top plate, two sides below the top plate are provided with guide rods 13, and the guide rods penetrate through the fixing plate.
The guide rod increases the stability of lifting and reduces the shaking of the top plate.
(7) Stacking the frame body: and weighing the qualified pipes, and conveying the pipes to a frame body for stacking.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A production process of an ultrahigh molecular weight polyethylene pipe is characterized by comprising the following steps: the method specifically comprises the following steps:
(1) mixing raw materials: mixing PE resin through a rubber mixing mill;
(2) tube extrusion: adding the mixed PE raw material into a feeder;
(3) traction and shaping: introducing the pipe with uniform wall thickness extruded from the extruder into a sizing copper sleeve and cooling the pipe through an air box area;
(4) winding the pipe material with a film: the cooled pipe is pushed by a traction machine to be sent to a film winding process, and a film winding machine suitable for the pipe is selected;
(5) cutting the pipe: conveying the pipe subjected to film winding to a cutting device for cutting;
(6) weighing the pipe: the cut pipe is pushed to a weighing mechanism to be weighed under the pushing of the subsequent pipe;
(7) stacking the frame body: and weighing the qualified pipes, and conveying the pipes to a frame body for stacking.
2. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 1, wherein: step (4) is around membrane machine and is included the frame, the round hole in the frame for current tubular product, frame one side is equipped with the gear carousel outward, gear carousel and round hole concentric circles, and the gear carousel power supply derives from the inside motor that sets up of frame, drives the gear carousel through the gear and rotates, is equipped with the membrane on the disc and rolls up the support, is equipped with the membrane on rolling up the support and rolls up.
3. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 2, wherein: and (4) performing heat sealing on the film opening while winding the film, specifically, performing heat sealing on a heating rod arranged on the other side of the rack, wherein one end of the heating rod is fixed on the rack, and the other end of the heating rod is contacted with the overlapped surface of the pipe wound with the film.
4. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 1, wherein: step (5) tubular product cutting adopts the synchronous motion cutting, specifically includes the workstation, is equipped with the mobile station on the workstation, is equipped with the pipe support that has the tubular product passageway on the mobile station, is equipped with the cutting machine on the pipe support, is equipped with the cylinder on the pipe support, and the cylinder drives the cutting machine and reciprocates, the pipe support inner wall is equipped with the spout, and the cutting machine removes in the spout, guarantees the stability that the cutting machine reciprocated, the mobile station below carries out the back-and-forth movement through establishing the reciprocal lead screw in the workstation, and the power source and the motor of lead screw are equipped with the slide on the workstation, and the mobile station below is connected with the movable block and passes the slide and connect on reciprocal lead screw, the speed that the mobile. The time of the cylinder propulsion is controlled by an external controller, and the cutting time is set according to the length of different pipes required.
5. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 1, wherein: the weighing mechanism in the step (6) comprises a support, a base plate is arranged on the support, a weight sensor is arranged on the base plate, the weight sensor is connected with an analog-to-digital converter through an amplifying circuit, processed digital signals are output to a CPU for operation control, the CPU outputs the results to a display according to keyboard commands and programs, a U-shaped frame is arranged above the weight sensor, a shaft is arranged on the U-shaped frame, and a roller is sleeved on the shaft.
6. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 5, wherein: the support is also provided with a fixed shaft, the fixed shaft is also sleeved with a roller, and the height of the roller is lower than that of the roller on the U-shaped frame.
7. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 6, wherein: the support is characterized in that a vertical frame is arranged on one side of the support, a transverse frame is arranged at the top end of the vertical frame, the transverse frame is downward inclined, a hydraulic cylinder is arranged on the support, a top plate is arranged on the hydraulic cylinder, the surface of the top plate is an inclined plane, the inclined plane is the same as the inclined direction of the transverse frame, the maximum height of the hydraulic cylinder jacking top plate is flush with the vertical frame, and the minimum height of the hydraulic cylinder contraction top plate is lower than the height of a.
8. The process for producing an ultra-high molecular weight polyethylene pipe according to claim 7, wherein: the support is provided with a fixing plate, the hydraulic cylinder is fixed below the fixing plate, the rod body on the hydraulic cylinder penetrates through the fixing plate to be connected with the top plate, two sides below the top plate are provided with guide rods, and the guide rods penetrate through the fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567333.8A CN111823623A (en) | 2020-06-19 | 2020-06-19 | Production process of ultrahigh molecular weight polyethylene pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010567333.8A CN111823623A (en) | 2020-06-19 | 2020-06-19 | Production process of ultrahigh molecular weight polyethylene pipe |
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| CN111823623A true CN111823623A (en) | 2020-10-27 |
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| CN202010567333.8A Pending CN111823623A (en) | 2020-06-19 | 2020-06-19 | Production process of ultrahigh molecular weight polyethylene pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113211756A (en) * | 2021-04-08 | 2021-08-06 | 朱颖慧 | Production process of ultrahigh molecular weight polyethylene pipe |
| CN113715302A (en) * | 2021-08-23 | 2021-11-30 | 浙江硕华生命科学研究股份有限公司 | Continuous molding production line and molding method for thermoplastic pipe fittings |
| CN114147987A (en) * | 2021-11-02 | 2022-03-08 | 安徽杰蓝特新材料有限公司 | Production method of continuous fiber reinforced thermoplastic composite pipe |
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Application publication date: 20201027 |
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