Ultrahigh molecular weight polyethylene pipe extrusion equipment

Abstract

The invention discloses ultra-high molecular weight polyethylene pipe extrusion equipment, and relates to the technical field of polyethylene pipe processing. Comprising a base, an extrusion pipe is arranged on the base, a sizing mill is arranged in front of the extrusion pipe, and a feeding mechanism is arranged above the extrusion pipe; a supporting plate is arranged on the base, and a cutting mechanism and a detection mechanism are arranged on the supporting plate and located in front of the sizing mill. The detection mechanism is used for detecting the sealing performance of the pipe; the detection mechanism comprises a mounting disc I and a mounting disc II; a first fixing seat is rotationally arranged on the first mounting disc, a second fixing seat is rotationally arranged on the second mounting disc, the second fixing seat and the first fixing seat are used for fixing a pipe, and gas is conveyed to the pipe through the second fixing seat; according to the device, drying continuous operation can be completed during material feeding, and leakage detection can be conducted after a pipe is formed.

Description

Technical Field

[0001] The invention relates to the technical field of polyethylene pipe processing, in particular to ultra-high molecular weight polyethylene pipe extrusion equipment. Background Art

[0002] Ultra-high molecular weight polyethylene pipe is a kind of plastic pipe made of ultra-high molecular weight polyethylene resin. It has good mechanical properties and chemical resistance and is widely used in many fields. For example, it can be used as an industrial conveying pipe: due to its wear resistance, it can be widely used in material transportation in mining, chemical and other industries; medical equipment: due to its good biocompatibility, it is often used in medical devices such as prostheses and joint replacements; food processing: in food processing equipment, it can meet food hygiene requirements and ensure safety; water treatment: due to its corrosion resistance, it is also commonly used in various applications in the water treatment industry; slideways and conveyor belts: in the field of logistics and transportation, It can be used to make slideways and conveyor belts to improve transportation efficiency. Currently, polyethylene pipes are generally produced through extrusion plasticization. During the material feeding process, some materials with strong hygroscopicity need to be dried in advance, which increases the process flow. After the pipe is formed, it is generally necessary to inspect the pipe. The existing inspection function generally performs length, surface defect inspection, etc. There are no specific technical measures for leakage problems caused by production defects in the pipe. Therefore, based on the above technical problems, the present invention proposes an extrusion equipment that can complete the drying operation when feeding the material, and can perform leakage detection after the pipe is formed. Summary of the invention

[0003] In view of the above technical problems, the present invention can complete the drying operation when the material is put in, and after the pipe is formed, leakage detection can be performed.

[0004] The scheme used in the present invention is: an ultra-high molecular weight polyethylene pipe extrusion equipment, including a base, an extrusion pipe is arranged on the base, a sizing machine is arranged in front of the extrusion pipe, and a feeding mechanism is arranged above the extrusion pipe; a support plate is arranged on the base, and a cutting mechanism and a detection mechanism are arranged on the support plate and in front of the sizing machine; the cutting mechanism is used to cut the end of the pipe, and the detection mechanism is used to detect the sealing of the pipe; the feeding mechanism includes a barrel arranged above the extrusion drive motor, a connecting barrel is arranged at the bottom end of the barrel, an inner barrel is arranged inside the barrel, an electric heating shaft is rotatably installed inside the inner barrel, and a lifting platform is slidably arranged on the electric heating shaft, The lifting platform is slidably matched with the inner side of the inner tube; the detection mechanism comprises a position electric cylinder 1 arranged on the support plate, a position electric cylinder 2 is arranged on the telescopic rods at both ends of the position electric cylinder 1, and a mounting plate 1 and a mounting plate 2 are respectively arranged on the telescopic rods of the two position electric cylinders 2; a fixed seat 1 is rotatably arranged on the mounting plate 1, and a fixed seat 2 is rotatably arranged on the mounting plate 2, the fixed seat 2 and the fixed seat pair 1 fix the pipe, and the gas is transported to the pipe through the fixed seat 2; the detection mechanism also comprises a detection slide seat slidably arranged on the base and located on one side of the pipe, a position electric cylinder 3 is arranged on the detection slide seat, and a gas ultrasonic detector is arranged on the telescopic rod of the position electric cylinder 3.

[0005] Furthermore, an extrusion drive motor is provided at one end of the extrusion tube, and an extrusion shaft is rotatably provided inside the extrusion tube, the extrusion shaft is driven by the extrusion drive motor, and the end of the extrusion tube facing the sizing machine is the molding extrusion end. The extruded pipe passes through the sizing machine and is cooled and sizing-molded in the sizing machine.

[0006] Furthermore, the connecting cylinder on the feeding mechanism is connected to the extrusion tube, a spherical mounting frame is arranged inside the connecting cylinder, a motor three is arranged inside the spherical mounting frame, and a feeding shaft is arranged at the bottom end of the spherical mounting frame, and the feeding shaft is driven by the motor three.

[0007] Furthermore, the feeding mechanism also includes a motor 1 arranged on the top of the barrel, which is used to drive the electric heating shaft, and a heating wire is arranged inside the electric heating shaft for electric heating; a motor 2 is arranged at the top of the electric heating shaft, and a retracting cylinder is arranged on the output shaft of the motor 2, and a retracting rope is wound on the retracting cylinder, and the free end of the retracting rope is connected to the lifting platform to control the lifting of the lifting platform.

[0008] Furthermore, a stirring portion is provided at the bottom end of the electric heating shaft for stirring the material; and a control electric cylinder is provided at the bottom end of the barrel, and a control baffle is provided on the telescopic rod of the control electric cylinder, and the control baffle is slidably matched with the bottom end of the barrel to control the release of the material.

[0009] Furthermore, a support transport frame is arranged in front of the sizing machine for supporting the pipe; the cutting mechanism includes a cutting electric cylinder arranged on the support plate, and a cutting motor and a cutting wheel are arranged on the telescopic rod of the cutting electric cylinder, and the cutting wheel is driven by the cutting motor.

[0010] Furthermore, the detection mechanism includes a motor four and a screw rod four arranged on the base, and the screw rod four is driven by the motor four; the detection slide and the screw rod four form a spiral pair.

[0011] Furthermore, the detection mechanism also includes a rotating motor 1 arranged on the mounting plate 1, and the rotating motor 1 is used to drive the fixing seat 1; the mounting plate 2 is provided with a rotating motor 2, and the rotating motor 2 is used to drive the fixing seat 2.

[0012] Furthermore, an air inlet groove is provided at one end of the fixing seat 2, and the interior of the fixing seat 2 is a hollow structure. An air outlet hole is provided on the end face of the fixing seat 2, and an air flow transmission box is provided on the base. An air pipe is connected between the air flow transmission box and the mounting plate 2. The air pipe transmits the air flow to the air inlet groove on the fixing seat 2, and the air flow is passed into the pipe from the air outlet.

[0013] Compared with the prior art, the present invention has the following advantages: (1) when feeding materials, materials with strong hygroscopicity are fed from the inner barrel for drying, and other materials can be directly fed into the barrel; (2) the lifting platform is raised and lowered to shake the materials up and down to improve the drying efficiency. The lifting platform is in the shape of a cone to avoid material residue and can also throw out the materials by rotating; (3) the air flow transmission box transmits gas, and the gas is transmitted to the end of the fixed seat 2 with the air inlet groove through the air pipe. The gas circulates inside the fixed seat 2 and is finally released into the pipe through the air outlet at the end of the fixed seat 2. The motor 4 works and the screw rod 4 rotates to move the detection slide. The position electric cylinder 3 controls the gas ultrasonic detector to approach the pipe. When the pipe has a molding defect, such as a leak, the air flow will leak from the pipe, and the gas ultrasonic detector can be used for leakage detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 It is a schematic diagram of the barrel structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the inner cylinder installation structure of the present invention.

[0017] Figure 4 This is a schematic diagram of the electric heating shaft installation structure of the present invention.

[0018] Figure 5 It is a schematic diagram of the installation structure of the lifting platform of the present invention.

[0019] Figure 6 It is a schematic diagram of the orthographic projection structure of the feeding mechanism of the present invention.

[0020] Figure 7 It is a schematic diagram of the internal structure of the connecting tube of the present invention.

[0021] Figure 8 It is a schematic diagram of the installation structure of the detection mechanism of the present invention.

[0022] Fig. 9 This is a schematic diagram of the installation structure of the detection mechanism and cutting mechanism of the present invention.

[0023] Fig.10 It is a schematic diagram of the side structure of the detection mechanism of the present invention.

[0024] Fig.11 It is a schematic diagram of the local structure of the detection mechanism of the present invention.

[0025] Fig.12 It is a schematic diagram of the installation structure of the installation disk 1 and the installation disk 2 of the present invention.

[0026] Fig.13 It is a schematic diagram of the installation structure of the fixing seat 2 of the present invention.

[0027] Fig.14 It is a schematic diagram of the fixing seat 2 of the present invention from another angle.

[0028] Description of the drawings: 1-base; 101-support plate; 2-extrusion tube; 3-extrusion drive motor; 4-sizing machine; 5-barrel; 501-connecting barrel; 6-extrusion shaft; 7-motor 1; 8-inner barrel; 9-electric heating shaft; 10-control electric cylinder; 11-control baffle; 12-lifting platform; 13-stirring part; 14-electric heating wire; 15-motor 2; 16-retracting barrel; 17-retracting rope; 18-feeding shaft; 19-spherical mounting frame; 20-motor 3; 21-motor 4; 22-screw rod 4; 23-support transport frame; 24-cut-off electric cylinder; 25-cut-off motor; 26-cut-off wheel; 27-position electric cylinder 1; 28-position electric cylinder 2; 29-air flow transmission box; 30-detection slide; 31-position electric cylinder 3; 32-gas ultrasonic detector; 33-mounting plate 1; 34-mounting plate 2; 35-rotating motor 1; 36-fixed seat 1; 37-rotating motor 2; 38-fixed seat 2. DETAILED DESCRIPTION

[0029] Example: Figures 1 to 14As shown, an extrusion tube 2 is arranged on the base 1, a sizing machine 4 is arranged in front of the extrusion tube 2, and a feeding mechanism is arranged above the extrusion tube 2; a support plate 101 is arranged on the base 1, and a cutting mechanism and a detection mechanism are arranged on the support plate 101 and in front of the sizing machine 4; the cutting mechanism is used to cut the end of the pipe, and the detection mechanism is used to detect the sealing of the pipe; an extrusion drive motor 3 is arranged at one end of the extrusion tube 2, and an extrusion shaft 6 is rotatably arranged inside the extrusion tube 2, and the extrusion shaft 6 is driven by the extrusion drive motor 3, and the end of the extrusion tube 2 facing the sizing machine 4 is the molding extrusion end, and the extruded pipe passes through the sizing machine 4, and is cooled and sizing-molded in the sizing machine 4.

[0030] The feeding mechanism includes a barrel 5 arranged above the extrusion drive motor 3, a connecting barrel 501 is arranged at the bottom end of the barrel 5, an inner barrel 8 is arranged inside the barrel 5, an electric heating shaft 9 is rotatably installed inside the inner barrel 8, and a lifting platform 12 is slidably arranged on the electric heating shaft 9, and the lifting platform 12 is slidably matched with the inner side of the inner barrel 8; the detection mechanism includes a position electric cylinder 1 27 arranged on the support plate 101, and position electric cylinders 28 are arranged on the telescopic rods at both ends of the position electric cylinder 1 27, and the two position electric cylinders 28 are respectively arranged on the telescopic rods. A mounting plate 1 33 and a mounting plate 2 34 are provided; a fixing seat 1 36 is rotatably provided on the mounting plate 1 33, and a fixing seat 2 38 is rotatably provided on the mounting plate 2 34; the fixing seat 2 38 and the fixing seat 1 36 fix the pipe, and the gas is transported to the pipe through the fixing seat 2 38; the detection mechanism also includes a detection slide 30 which is slidably provided on the base 1 and is located on one side of the pipe, a position electric cylinder 3 31 is provided on the detection slide 30, and a gas ultrasonic detector 32 is provided on the telescopic rod of the position electric cylinder 31.

[0031] The feeding mechanism also includes a motor 17 arranged on the top of the barrel 5, and the motor 17 is used to drive the electric heating shaft 9. The electric heating shaft 9 is provided with an electric heating wire 14 for electric heating; a motor 2 15 is arranged at the top of the electric heating shaft 9, and a retracting cylinder 16 is arranged on the output shaft of the motor 2 15, and a retracting rope 17 is wound on the retracting cylinder 16. The free end of the retracting rope 17 is connected to the lifting platform 12 to control the lifting and lowering of the lifting platform 12; a stirring part 13 is arranged at the bottom end of the electric heating shaft 9 for stirring the material; and a control electric cylinder 10 is arranged at the bottom end of the barrel 5, and a control baffle 11 is arranged on the telescopic rod of the control electric cylinder 10, and the control baffle 11 is slidably matched with the bottom end of the barrel 5 to control the release of the material; a support and transport frame 23 is arranged in front of the sizing machine 4 for supporting the pipe; the cutting mechanism includes a cutting electric cylinder 24 arranged on the support plate 101, and a cutting motor 25 and a cutting wheel 26 are arranged on the telescopic rod of the cutting electric cylinder 24, and the cutting wheel 26 is driven by the cutting motor 25.

[0032] The detection mechanism includes a motor 21 and a screw rod 22 arranged on the base 1, and the screw rod 22 is driven by the motor 21; the detection slide 30 and the screw rod 22 form a spiral pair; the detection mechanism also includes a rotating motor 35 arranged on the mounting plate 33, and the rotating motor 35 is used to drive the fixed seat 36; a rotating motor 37 is arranged on the mounting plate 34, and the rotating motor 37 is used to drive the fixed seat 38; an air inlet groove is provided at one end of the fixed seat 38, and the interior of the fixed seat 38 is a hollow structure, and an air outlet is provided on the end face of the fixed seat 38, and an air flow transmission box 29 is provided on the base 1, and an air pipe is connected between the air flow transmission box 29 and the mounting plate 34, and the air pipe transmits the air flow to the air inlet groove on the fixed seat 38, and the air flow is passed into the pipe from the air outlet.

[0033] The working principle of the present invention is as follows: when feeding materials, materials with strong hygroscopicity are put into the inner cylinder 8 for drying, and other materials can be directly put into the barrel 5; specifically, when drying materials, the materials are stirred by the electric heating shaft 9 in the inner cylinder 8, that is, the motor 17 drives the electric heating shaft 9 to work, and at the same time, other materials are stirred by the stirring part 13 in the barrel 5 to mix; further, through the operation of the motor 2 15, the retracting cylinder 16 retracts and releases the retracting rope 17, even if the lifting platform 12 is raised and lowered to shake the materials up and down, thereby improving the drying efficiency. The lifting platform 12 is a frustum-shaped, which can avoid material residue, and the material can also be thrown out by rotation; the electric heating wire 14 works, that is, electric heating is performed for drying; after the drying is completed, the lifting platform 12 is controlled to rise and fall, so that the lifting platform 12 extends from the bottom end of the inner cylinder 8, that is, the material can fall from the bottom end of the inner cylinder 8 into the barrel 5 for mixing.

[0034] The baffle 11 is controlled to move by controlling the electric cylinder 10, that is, the baffle 11 is controlled to disengage from the bottom end of the barrel 5, and the material is released into the connecting barrel 501. The motor 3 20 works and the feed shaft 18 rotates to transport the material, that is, transport it to the extrusion tube 2. The extrusion drive motor 3 drives the extrusion shaft 6 to transmit the material. In the extrusion tube 2, the material is heated and melted, and is formed and extruded at the end of the extrusion tube 2, and then passes through the sizing machine 4, where it is cooled, sized and formed, and finally transmitted from one end of the sizing machine 4.

[0035] The pipe is supported by the support and transport frame 23 and can be cut to different lengths according to the needs, that is, the cutting electric cylinder 24 controls the position of the cutting wheel 26, and the cutting motor 25 drives the cutting wheel 26 to cut; during the inspection, the position of the two end position electric cylinders 28 is controlled by the position electric cylinder 1 27, and the position electric cylinder 28 controls the height of the mounting plate 1 33 and the mounting plate 2 34, so that the fixing seat 1 36 and the fixing seat 2 38 extend into the pipe and fix the pipe; lift the pipe and detach it from the support and transport frame 23, and work the rotating motor 2 37 and the rotating motor 1 35 to make the fixing seat The second 38 and the fixed seat one 36 rotate, which in turn drives the pipe to rotate, and the gas is transmitted through the air flow transmission box 29. The gas is transmitted through the air pipe to the end of the fixed seat two 38 with the air inlet groove. The gas circulates inside the fixed seat two 38, and is finally released into the pipe through the air outlet at the end of the fixed seat two 38. The motor four 21 works, the screw four 22 rotates, and the detection slide 30 moves. The position electric cylinder three 31 controls the gas ultrasonic detector 32 to approach the pipe. When the pipe has a molding defect, that is, a leak hole appears, the air flow will leak from the pipe, and the gas ultrasonic detector 32 can be used for leakage detection.

Claims

1. An ultra-high molecular weight polyethylene pipe extrusion device, comprising a base (1), an extrusion pipe (2) being arranged on the base (1), and a sizing machine (4) being arranged in front of the extrusion pipe (2), characterized in that: A feeding mechanism is arranged above the extrusion tube (2); a support plate (101) is arranged on the base (1); a cutting mechanism and a detection mechanism are arranged on the support plate (101) and in front of the sizing machine (4); the cutting mechanism is used to cut the end of the tube, and the detection mechanism is used to detect the sealing of the tube; the feeding mechanism comprises a barrel (5) arranged above the extrusion drive motor (3); a connecting barrel (501) is arranged at the bottom end of the barrel (5); an inner barrel (8) is arranged inside the barrel (5); an electric heating shaft (9) is rotatably installed inside the inner barrel (8), and a lifting platform (12) is slidably arranged on the electric heating shaft (9); the lifting platform (12) is slidably matched with the inner side of the inner barrel (8); the detection mechanism comprises a position electric cylinder (2) arranged on the support plate (101); 7), a position electric cylinder 2 (28) is arranged on the telescopic rods at both ends of the position electric cylinder 1 (27), and a mounting plate 1 (33) and a mounting plate 2 (34) are respectively arranged on the telescopic rods of the two position electric cylinders 2 (28); a fixing seat 1 (36) is rotatably arranged on the mounting plate 1 (33), and a fixing seat 2 (38) is rotatably arranged on the mounting plate 2 (34); the fixing seat 2 (38) and the fixing seat 1 (36) fix the pipe, and the gas is transported to the pipe through the fixing seat 2 (38); the detection mechanism also includes a detection slide (30) slidably arranged on the base (1) and located on one side of the pipe, a position electric cylinder 3 (31) is arranged on the detection slide (30), and a gas ultrasonic detector (32) is arranged on the telescopic rod of the position electric cylinder 3 (31).

2. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 1, characterized in that: An extrusion drive motor (3) is provided at one end of the extrusion tube (2), and an extrusion shaft (6) is rotatably provided inside the extrusion tube (2), the extrusion shaft (6) being driven by the extrusion drive motor (3), the end of the extrusion tube (2) facing the sizing machine (4) being a molding extrusion end, and the extruded tube passes through the sizing machine (4), where it is cooled, sized and molded.

3. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 1, characterized in that: The connecting cylinder (501) on the feeding mechanism is connected to the extrusion tube (2), a spherical mounting frame (19) is arranged inside the connecting cylinder (501), a motor three (20) is arranged inside the spherical mounting frame (19), and a feeding shaft (18) is arranged at the bottom end of the spherical mounting frame (19), and the feeding shaft (18) is driven by the motor three (20).

4. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 3, characterized in that: The feeding mechanism further comprises a motor 1 (7) arranged at the top of the barrel (5), the motor 1 (7) being used to drive the electric heating shaft (9), the electric heating shaft (9) being provided with an electric heating wire (14) for electric heating; a motor 2 (15) being provided at the top of the electric heating shaft (9), a retractable cylinder (16) being provided on the output shaft of the motor 2 (15), a retractable rope (17) being wound on the retractable cylinder (16), the free end of the retractable rope (17) being connected to the lifting platform (12) to control the lifting and lowering of the lifting platform (12).

5. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 4, characterized in that: The bottom end of the electric heating shaft (9) is provided with a stirring portion (13) for stirring the material; and a control electric cylinder (10) is provided at the bottom end of the barrel (5); a control baffle (11) is provided on the telescopic rod of the control electric cylinder (10); the control baffle (11) is slidably matched with the bottom end of the barrel (5) to control the release of the material.

6. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 1, characterized in that: A support transport frame (23) is arranged in front of the sizing machine (4) for supporting the pipe; the cutting mechanism comprises a cutting electric cylinder (24) arranged on the support plate (101); a cutting motor (25) and a cutting wheel (26) are arranged on the telescopic rod of the cutting electric cylinder (24); and the cutting wheel (26) is driven by the cutting motor (25).

7. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 1, characterized in that: The detection mechanism comprises a motor four (21) and a screw rod four (22) arranged on a base (1); the screw rod four (22) is driven by the motor four (21); the detection slide seat (30) and the screw rod four (22) form a spiral pair.

8. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 7, characterized in that: The detection mechanism further comprises a rotating motor 1 (35) arranged on the first mounting plate (33), the rotating motor 1 (35) being used to drive the first fixing seat (36); a rotating motor 2 (37) is arranged on the second mounting plate (34), the rotating motor 2 (37) being used to drive the second fixing seat (38).

9. The ultra-high molecular weight polyethylene pipe extrusion equipment according to claim 8, characterized in that: An air inlet groove is provided at one end of the second fixing seat (38), and the interior of the second fixing seat (38) is a hollow structure. An air outlet hole is provided on the end surface of the second fixing seat (38). An air flow transmission box (29) is provided on the base (1). An air pipe is connected between the air flow transmission box (29) and the second mounting plate (34). The air pipe transmits the air flow to the air inlet groove on the second fixing seat (38), and the air flow is passed into the pipe from the air outlet hole.

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