A PEEK thick-walled pipe extrusion production device and process

Abstract

The present invention discloses a PEEK thick-walled pipe extrusion production device and process, which specifically relates to the technical field of pipe production, including a machine, an injection molding mechanism is installed on the surface of the machine, an extrusion mold is installed in communication with the output end of the injection molding mechanism, and a pipe body is extruded and molded on the extrusion mold. The present invention utilizes two cooling sleeves to complete differential temperature cooling on both sides of the molding mechanism. The differential temperature design is beneficial to the preliminary cooling of the pipe body before it enters the molding mechanism. At the same time, the design of the cooling sleeve is adopted, and the coolant is sent into the cooling sleeve in a shielded manner through the cooling unit to avoid damage to the pipe body, thereby allowing the pipe body to continuously contact the coolant in the cooling gap, while increasing the cooling area, which is beneficial to the rapid cooling of the pipe body, and the coolant is continuously discharged from the discharge gap, thereby completing the rapid circulation of the coolant and improving the cooling accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of pipe production, and in particular to a PEEK thick-wall pipe extrusion production device and process. Background Art

[0002] Polyetheretherketone (PEEK) is a polymer composed of repeating units containing one ketone bond and two ether bonds in the main chain structure. It is a special polymer material with physical and chemical properties such as high temperature resistance and chemical corrosion resistance. It is a type of semi-crystalline polymer material that can be used as a high temperature resistant structural material and electrical insulation material, and can be composited with glass fiber or carbon fiber to prepare reinforcement materials.

[0003] PEEK pipes are formed by extrusion. The extruder is the main molding equipment that uses plastic molding molds to make thermoplastics or thermosetting plastics into plastic products of various shapes. It is widely used in pipe processing. The current extruder can extrude and mold various types of pipes, which improves production efficiency.

[0004] A polyvinyl chloride pipe extrusion device and an extrusion method thereof are disclosed in a patent application with reference to publication number CN117863504B. The extrusion device performs preliminary cooling on the pipe that has just been extruded into the shaping shell through a pre-cooling ring to increase the hardness of the pipe, but the pipe is not completely shaped and hardened, so that the pipe has shaping ability, and then the pipe is shaped and shaped through the cooperation of the shaping inner shaft and the outer ring shaping ring, so that the pipe can maintain the shaping size, avoiding deformation due to the inability to maintain the shaping size after shaping, and further improving the shaping effect and extrusion accuracy.

[0005] The above extrusion device can cool the pipe by spraying gas through the cooling ring. However, the cooling ring is used to cool the pipe by blowing air. This method has an unsatisfactory cooling effect on the pipe and cannot quickly cool the pipe, which results in a longer cooling cycle and reduced production efficiency. It also interferes with the shaping work, affects the quality of the pipe, and increases the scrap rate. At the same time, the spacing of the air outlet holes causes uneven cooling of the pipe, which affects the subsequent shaping of the pipe.

[0006] Secondly, in the prior art, water spraying by nozzles is often used to cool down the pipes. However, such nozzles spray water directly onto unhardened pipes, which may easily damage the surface of the pipes. At the same time, due to the influence of the nozzle spacing, cooling dead corners may occur, and effective cooling of the pipes cannot be completed, resulting in unsatisfactory actual production effects. Summary of the invention

[0007] The purpose of the present invention is to provide a PEEK thick-walled pipe extrusion production device and process to solve the above technical problems.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The invention discloses a PEEK thick-walled pipe extrusion production device, comprising a machine platform, an injection molding mechanism is installed on the upper surface of the machine platform, an extrusion die is connected and installed at the output end of the injection molding mechanism, a pipe body is extruded and formed on the extrusion die, a recycling box is installed at the front end of the machine platform, a molding mechanism is installed in the recycling box, the molding mechanism is arranged in cooperation with the extrusion die, the inner wall and the outer wall of the pipe body formed by the extrusion die are synchronously molded by the molding mechanism, two cooling sleeves are concentrically installed on both sides of the molding mechanism through a bracket, the two cooling sleeves form two cooling gaps on both sides of the molding mechanism, a cooling unit is installed on one side of the two cooling sleeves close to the molding mechanism, a circulating cooling action is performed in a differential temperature manner in the cooling gaps of the two cooling sleeves by the cooling unit, a discharge unit is installed on one end of the two cooling sleeves away from the molding mechanism, the discharge unit is used for completing the guided discharge of the coolant in the two cooling sleeves, and a toggle unit is installed on the two cooling sleeves, the toggle unit is used for actively toggling and mixing the coolant in the two cooling sleeves, and the active adjustment action of the cooling effect in the two cooling sleeves is jointly completed by the discharge unit and the toggle unit.

[0010] Furthermore, the molding mechanism includes a molding inner shaft and a molding outer ring. One end of the molding inner shaft is detachably fixedly connected to the extrusion mold. The molding inner shaft is concentrically arranged with the extrusion mold. The molding outer ring is concentrically sleeved on the outside of the molding inner shaft. The gap between the molding outer ring and the molding inner shaft is coordinated with the extrusion mold, and the tube body is correspondingly arranged between the molding inner shaft and the molding outer ring to complete the shaping action.

[0011] Furthermore, assembly frames are detachably installed on both sides of the top of the recovery box, and the two assembly frames are detachably fixedly connected to the two cooling jackets and the side walls of the molded outer ring respectively.

[0012] Furthermore, the two cooling units each include an annular cavity No. 1 installed in the cooling jacket close to the side of the molded outer ring, an annular area is opened through the No. 1 annular cavity on the side facing the molded outer ring, an annular water cavity is installed on the top of the annular area, and a plurality of nozzles are arranged in a circular array on the inner wall of the annular water cavity, the annular area is used to shield the plurality of nozzles, and a delivery pipe is connected and penetrated on one side of the cooling jacket, and the bottom of the delivery pipe is connected to the annular water cavity.

[0013] Furthermore, the two discharge units each include an annular member concentrically installed on the side of the cooling jacket away from the shaping outer ring, an annular adjustment member is coaxially rotatably installed on one side of the annular member, four flow areas are opened in a circular array on the annular member, and a guide area is opened through the annular adjustment member, and the flow direction of the coolant in the two cooling jackets is actively controlled by the movement of the guide area and the respective coordination of the four flow areas, thereby forming a discharge gap between the annular member, the annular adjustment member and the pipe body.

[0014] Furthermore, an outer gear ring No. 1 is sleeved on the outside of the annular adjustment member, a drive shaft No. 1 is installed on the top of the two cooling jackets through a bracket for common rotation, and a motor No. 1 is installed on one side of one of the cooling jackets through a bracket, the output end of the motor No. 1 is connected to the drive shaft No. 1 for transmission, and two drive gears are fixedly sleeved on the outside of the drive shaft No. 1, and the two drive gears are respectively meshed and connected to the outer gear ring No. 1 on the two annular adjustment members, and fine-tuning is completed by synchronously linking the two annular adjustment members through the No. 1 drive shaft and the two drive gears.

[0015] Furthermore, the two toggle units each include an annular passage area that passes through one side of the cooling jacket, a plurality of reinforcement members are arranged in a circular array on the top of the annular passage area, a drive ring is installed in the annular passage area for concentric sealing rotation, a No. 2 outer gear ring is arranged on the external fixed sleeve of the drive ring, a plurality of toggle members are arranged in a circular array in the cooling jacket on one side of the drive ring, a No. 2 drive shaft is installed for common rotation outside the two cooling jackets through a bracket, two rotating gears are arranged on the external fixed sleeve of the No. 2 drive shaft, and the two rotating gears are respectively meshed and transmission-connected with the No. 2 outer gear rings of the two cooling jackets, and a No. 2 motor is installed on one side of one of the cooling jackets through a bracket, the output end of the No. 2 motor is transmission-connected with the No. 2 drive shaft, and the two drive rings are synchronously linked to complete the rotation through the No. 2 drive shaft and the two rotating gears, and a follower unit is installed on both cooling jackets, the follower unit is linked with the No. 2 drive shaft, and the follower unit is used to receive power from the No. 2 drive shaft to complete synchronous and continuous pressurization and air supply.

[0016] Furthermore, the multiple toggle members each include an air cavity arranged on one side of the driving ring, a toggle plate is installed on the air cavity, a plurality of channels are equidistantly penetrated on the toggle plate, air nozzles are installed in the plurality of channels, a second annular cavity is installed in the cooling jacket near the first annular cavity, a rotating ring is rotatably installed in the second annular cavity near one side of the toggle member, the rotating ring is connected to the air cavities of the multiple toggle members, and the multiple air cavities are connected to the second annular cavity through the rotating ring, an air intake pipe is installed on one side of the second annular cavity, and the top of the air intake pipe is correspondingly arranged through the cooling jacket.

[0017] Furthermore, the two follower units each include a reciprocating screw that is rotatably mounted on the outer wall of the cooling jacket through a bracket, a screw nut is correspondingly sleeved on the outside of the reciprocating screw, and the reciprocating forward and backward movement of the screw nut is completed by the rotation of the reciprocating screw, a No. 1 gear is sleeved on the outside of the No. 2 driving shaft, a No. 2 gear is transmission-mounted on one end of the reciprocating screw, and the No. 2 gear is meshingly and transmission-connected with the No. 1 gear, an air cylinder is mounted on one side of the outer wall of the cooling jacket through the bracket, and a top cover is mounted on the top of the air cylinder, a piston head is slidingly sealed in the air cylinder, a power rod is concentrically mounted on the top of the piston head, the sliding seal on the top of the power rod is arranged through the top cover, and the top of the power rod is detachably fixedly connected to the screw nut, a No. 1 inlet pipe is connected and installed on one side of the top of the air cylinder, a No. 1 outlet pipe is connected and installed on the other side of the top of the air cylinder, a No. 2 inlet pipe is connected and installed on one side of the bottom of the air cylinder, a No. 2 outlet pipe is connected and installed on the other side of the bottom of the air cylinder, and the No. 1 outlet pipe and the No. 2 outlet pipe are both connected to the inlet pipe through a pipeline.

[0018] The present invention also provides a PEEK thick-walled pipe extrusion production process, which specifically includes the following steps:

[0019] Step 1: Heat, melt and extrude the injection molding raw materials through the injection molding mechanism;

[0020] Step 2, the injection molding raw material enters the extrusion die to complete the extrusion molding of the pipe body;

[0021] Step 3: After the tube body is sent out through the extrusion die, it is introduced into the forming mechanism. At the same time, two cooling sleeves are used to complete the cooling of the different temperatures on both sides of the forming mechanism, so that the inner wall and the outer wall of the tube body are synchronously shaped through the forming mechanism.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention is provided with a cooling unit, and at the same time, the annular area is used to shield multiple nozzles, so that the coolant contacts the annular area after being sprayed from the nozzle, thereby avoiding the problem that the coolant directly acts on the surface of the pipe body and causes damage. The subsequent coolant enters the cooling gap through the water flow area, and the coolant completes the cooling work around the pipe body after filling the cooling gap, thereby improving the cooling efficiency and increasing the cooling area. The coolant of different temperature ranges is fed into the two cooling jackets through the delivery pipe, so that the cooling work of the different temperatures is completed through the two cooling jackets, thereby realizing the preliminary cooling and deep cooling of the pipe body.

[0024] The present invention is provided with a discharge unit. When the guide area coincides with one of the flow areas, the opening operation is completed. At this time, the coolant in the cooling gap is discharged from the guide area at the same time. During the adjustment, it is only necessary to start the No. 1 motor, and drive the two drive gears to rotate via the No. 1 drive shaft. The two drive gears are meshed with the two No. 1 outer gear rings, thereby completing the driving of the annular adjustment member, and the position of the guide area can be actively controlled, thereby completing the control of the outflow direction of the coolant in the cooling gap;

[0025] The present invention is provided with a toggle unit, which links multiple toggle members to rotate synchronously during the rotation of the driving ring, and completes the toggle of the coolant through the rotation of the toggle plate in the cooling gap, so that the coolant flows in the cooling gap, further improving the cooling uniformity, and can force the coolant to flow. The coolant can be opened and closed freely, and the follower unit is linked to the action. That is, in the up and down reciprocating pushing path of the piston head, the gas in the cylinder can be continuously delivered into the air nozzle through the No. 1 outlet pipe and the No. 2 outlet pipe to complete the pneumatic push, which further promotes the flow of the coolant and enables the pipe body to obtain a good cooling effect.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is the overall front view of the present invention;

[0028] Figure 2 It is a schematic diagram of the connection between the injection molding mechanism and the extrusion mold of the present invention;

[0029] Figure 3 It is a schematic diagram of the distribution of the extrusion die and the molding mechanism of the present invention;

[0030] Figure 4 It is a schematic diagram of the forming mechanism of the present invention;

[0031] Figure 5 It is a schematic diagram of the distribution of two cooling jackets and a forming mechanism of the present invention;

[0032] Figure 6 It is a schematic diagram of the internal structure of the cooling jacket of the present invention;

[0033] Figure 7 It is a schematic diagram of the distribution of two cooling jackets of the present invention;

[0034] Figure 8 It is a schematic diagram of installing the cooling unit of the present invention in a cooling jacket;

[0035] Fig. 9 It is a schematic diagram of the discharge unit of the present invention;

[0036] Fig.10It is a schematic diagram of installing the discharge unit of the present invention on the cooling jacket;

[0037] Fig.11 It is a schematic diagram of the toggle unit of the present invention;

[0038] Fig.12 It is a schematic diagram of the distribution of the toggle member and the gas cylinder of the present invention;

[0039] Fig.13 It is a schematic diagram of the follower unit of the present invention;

[0040] Fig.14 It is a schematic diagram of the distribution of the toggle member of the present invention between the drive ring and the second annular cavity.

[0041] In the figure: 1, machine; 2, injection molding mechanism; 3, extrusion mold; 4, pipe body; 5, recovery box; 6, cooling jacket; 7, cooling gap; 8, fixed inner shaft; 9, fixed outer ring; 10, tapered guide groove; 11, tapered guide section; 12, assembly frame; 13, No. 1 annular cavity; 14, annular area; 15, annular water cavity; 16, nozzle; 17, delivery pipe; 18, annular member; 19, annular adjustment member; 20, circulation area; 21, guide area; 22, discharge gap; 23, No. 1 outer gear ring; 24, No. 1 driving shaft; 25, No. 1 motor; 26, driving gear; 2 7. Annular passage; 28. Reinforcement piece; 29. ​​Drive ring; 30. No. 2 outer gear ring; 31. Toggle piece; 311. Air cavity; 312. Toggle plate; 313. Passage; 314. Air nozzle; 32. No. 2 drive shaft; 33. Rotating gear; 34. No. 2 motor; 35. No. 2 annular cavity; 36. Rotating ring; 37. Inlet pipe; 38. Reciprocating screw; 39. Screw nut; 40. No. 1 gear; 41. No. 2 gear; 42. Air cylinder; 43. Piston head; 44. Power rod; 45. No. 1 inlet pipe; 46. No. 1 outlet pipe; 47. No. 2 inlet pipe; 48. No. 2 outlet pipe. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0044] Embodiment 1: The present invention provides a technical solution: Figures 1 to 14As shown, a PEEK thick-walled pipe extrusion production device includes a machine 1, an injection molding mechanism 2 is installed on the upper surface of the machine 1, an extrusion mold 3 is connected and installed at the output end of the injection molding mechanism 2, a pipe body 4 is extruded and formed on the extrusion mold 3, the injection molding mechanism 2 is used to complete the melt extrusion action of the raw material, the injection molding mechanism 2 is composed of a screw injection molding barrel, a hopper, a reduction box and a reduction motor, the screw injection molding barrel is installed on the upper surface of the machine 1 through a bracket, the hopper is connected and installed on one side of the top of the screw injection molding barrel, the reduction box is arranged on the machine 1 at the screw The output end of the reduction motor is connected to the extrusion screw in the screw injection plastic barrel, the reduction motor is arranged on the machine 1, and the output end of the reduction motor is connected to the input end of the reduction gearbox, and the output end of the screw injection plastic barrel is connected to the extrusion mold 3, the extrusion mold 3 is composed of an extrusion outer mold and an extrusion inner mold, the extrusion outer mold is correspondingly sleeved on the outside of the extrusion inner mold, and an annular extrusion cavity is formed between the extrusion outer mold and the extrusion inner mold, and the forming extrusion of the pipe body 4 is completed through the annular extrusion cavity, and a recycling box 5 with a development design on the top is installed at the front end of the machine 1. A molding mechanism is installed in the recycling box 5, and the molding mechanism is arranged in cooperation with the extrusion die 3. The inner wall and the outer wall of the pipe body 4 formed by the extrusion die 3 are synchronously molded by the molding mechanism, and two cooling sleeves 6 are concentrically installed on both sides of the molding mechanism through a bracket. The two cooling sleeves 6 form two cooling gaps 7 on both sides of the molding mechanism. A cooling unit is installed on the side close to the molding mechanism in the two cooling sleeves 6. The cooling unit performs a cyclic cooling action in the cooling gaps 7 of the two cooling sleeves 6 in a differential temperature manner. A discharge unit is installed on the end of the two cooling sleeves 6 away from the molding mechanism. The discharge unit is used to guide and discharge the coolant in the two cooling sleeves 6, and a toggle unit is installed on the two cooling sleeves 6. The toggle unit is used to actively toggle and mix the coolant in the two cooling sleeves 6. The active adjustment action of the cooling effect in the two cooling sleeves 6 is completed by the discharge unit and the toggle unit together. Discharge pipes are connected and installed on both sides of the bottom of the front end of the recycling box 5. Manual valves for controlling the opening and closing of the two discharge pipes are installed at the ends of the two discharge pipes. The coolant in the recycling box 5 is discharged outwardly through the two discharge pipes;

[0045] In the embodiment of the present invention, the molding mechanism includes a molding inner shaft 8 and a molding outer ring 9, one end of the molding inner shaft 8 is detachably fixedly connected to the extrusion mold 3, the molding inner shaft 8 is concentrically arranged with the extrusion mold 3, and the molding inner shaft 8 is specifically detachably fixedly connected to the extrusion inner mold, the molding outer ring 9 is concentrically sleeved outside the molding inner shaft 8, and the gap between the molding outer ring 9 and the molding inner shaft 8 is arranged in cooperation with the extrusion mold 3, and the pipe body 4 is correspondingly arranged between the molding inner shaft 8 and the molding outer ring 9 to complete the molding action, and conical guide grooves 10 are arranged on both sides of the molding outer ring 9, and a conical guide section 11 is arranged at one end of the molding inner shaft 8 close to the extrusion mold 3, and the pipe body 4 formed by the extrusion mold 3 is actively guided by the conical guide section 11 and the conical guide groove 10;

[0046] It is worth noting that: when the shaping work of the tube body 4 is completed: by providing a molding mechanism, the tube body 4 formed by the injection molding mechanism 2 and the extrusion mold 3 is pulled onto the shaping inner shaft 8 through the tapered guide section 11, and then contacts the shaping outer ring 9 during movement, so that the inner wall and outer wall of the tube body 4 are synchronously shaped by the shaping inner shaft 8 and the shaping outer ring 9, and with the cooperation of the tapered guide section 11, the guidance of the tube body 4 when the shaping outer ring 9 is introduced can be completed, thereby ensuring the stability of the tube body 4 during the molding process. Subsequently, the adjustment is completed by replacing different shaping inner shafts 8 and shaping outer rings 9 to adapt to tube bodies 4 of different sizes.

[0047] Among them, the injection molding mechanism 2, motor No. 1 25, motor No. 2 34 and various electrical components on the production device are connected to switches through wires, and the switches are electrically connected to a controller. The specific structure of the controller is not limited, and absolute encoders are installed on motor No. 1 25 and motor No. 2 34, and motor No. 1 25 and motor No. 2 34 are accurately positioned by the absolute encoder.

[0048] Embodiment 2: Based on the cooling unit provided in Embodiment 1, this embodiment provides a further technical solution of the cooling unit.

[0049] like Figures 8 to 10 As shown, the two cooling jackets 6 are both hollow annular structures, and the diameter of the cooling jacket 6 is larger than the diameter of the shaping outer ring 9. The two cooling jackets 6 are detachably sealed and connected to the side walls of the shaping outer ring 9 by bolts, and the cooling gap 7 is arranged between the cooling jacket 6 and the pipe body 4. Assembly racks 12 are detachably installed on both sides of the top of the recovery box 5, and the two assembly racks 12 are detachably fixedly connected to the two cooling jackets 6 and the side walls of the shaping outer ring 9 respectively;

[0050] In the embodiment of the present invention, both cooling units include a No. 1 annular cavity 13 detachably mounted in the cooling jacket 6 near the side of the molded outer ring 9, and the No. 1 annular cavity 13 is spaced apart from the molded outer ring 9, a water flow area is formed between the No. 1 annular cavity 13 and the molded outer ring 9, an annular area 14 is provided through the No. 1 annular cavity 13 on the side facing the molded outer ring 9, an annular water cavity 15 is installed at the top of the annular area 14, and a plurality of nozzles 16 are connected and arranged in a circular array on the inner wall of the annular water cavity 15, the plurality of nozzles 16 are shielded by the annular area 14, and a delivery pipe 17 is provided on one side of the cooling jacket 6, the delivery pipe 17 is connected to the external coolant, the bottom of the delivery pipe 17 is connected to the annular water cavity 15, and an electromagnetic valve for controlling the on-off of the delivery pipe 17 is installed at the end of the delivery pipe 17;

[0051] It is worth noting that: when the cooling work of the pipe body 4 is completed: by providing a cooling unit, before the pipe body 4 enters the shaping outer ring 9, the external coolant is introduced into the annular water cavity 15 through the delivery pipe 17, and then the coolant is sprayed out through multiple nozzles 16, and at the same time, the multiple nozzles 16 are shielded by the annular area 14, so that the coolant contacts the annular area 14 after being sprayed out by the nozzle 16, avoiding the problem of the coolant directly acting on the surface of the pipe body 4 and causing damage. The subsequent coolant enters the cooling gap 7 through the water passing area, and the coolant completes the cooling work around the pipe body 4 after filling the cooling gap 7, thereby improving the cooling efficiency, increasing the cooling area, and ensuring the cooling accuracy of the pipe body 4. The coolant is then discharged from the discharge gap 22 and the guide area 21 Out, so as to complete the flow of coolant in the cooling gap 7, and continuously feed coolant into the delivery pipe 17 to ensure the supply of coolant in the cooling gap 7, and the flow rate of coolant fed into the delivery pipe 17 is adjusted according to the actual cooling demand to ensure sufficient supply of coolant in the cooling gap 7, and finally the coolant falls into the recovery box 5 for collection and standby, thereby completing the circulation cooling of the pipe body 4, and at the same time, according to the cooling demand, coolant in different temperature ranges is fed into the two cooling jackets 6 through the delivery pipe 17, so as to complete the cooling work of the difference temperature through the two cooling jackets 6, thereby realizing the preliminary cooling and deep cooling of the pipe body 4, which is beneficial to the subsequent shaping work, and at the same time ensures the quality of the pipe body 4, and is convenient for the operator to adjust the use according to the use demand;

[0052] In the embodiment of the present invention, the two discharge units each include an annular member 18 concentrically mounted on the side of the cooling jacket 6 away from the shaping outer ring 9, an annular adjusting member 19 is coaxially mounted on one side of the annular member 18, a slideway cooperating with the annular adjusting member 19 is provided on the annular member 18, and the annular adjusting member 19 is arranged to extend out of the cooling jacket 6, four circulation areas 20 are provided in a circular array on the annular member 18, and a guide area 21 is provided through the annular adjusting member 19, the guide area 21 is consistent with the cross-section of the four circulation areas 20, and the active control of the flow direction of the coolant in the two cooling jackets 6 is completed by the movement of the guide area 21 and the respective cooperation of the four circulation areas 20, the inner diameter size of the annular member 18 is consistent with that of the annular adjusting member 19, and the annular member 18 and the annular adjusting member 19 are spaced apart from the pipe body 4, and the inner diameter size of the annular member 18 and the annular adjusting member 19 is determined according to the actual situation. The actual cooling demand is adjusted, and a discharge gap 22 is formed between the annular member 18, the annular adjustment member 19 and the pipe body 4. The allowable flow rate of the discharge gap 22 is less than the allowable flow rate of the cooling gap 7, so that the coolant can stay in the cooling gap 7 to complete the cooling work. A No. 1 outer gear ring 23 is sleeved on the outside of the annular adjustment member 19, and a No. 1 drive shaft 24 is installed on the top of the two cooling jackets 6 through a bracket to rotate together, and a No. 1 motor 25 is installed on one side of one of the cooling jackets 6 through a bracket, and the output end of the No. 1 motor 25 is connected to the No. 1 drive shaft 24 through transmission, and two drive gears 26 are fixedly sleeved on the outside of the No. 1 drive shaft 24, and the two drive gears 26 are respectively meshed and connected with the No. 1 outer gear rings 23 on the two annular adjustment members 19, and the two annular adjustment members 19 are synchronously linked through the No. 1 drive shaft 24 and the two drive gears 26 to complete fine adjustment;

[0053] It is worth noting that: when controlling the discharge of the coolant in the cooling sleeve 6: by providing a discharge unit, the coolant that has been cooled flows out through the discharge gap 22, and at the same time, four flow areas 20 are provided on the annular member 18, and a guide area 21 is provided on the annular adjustment member 19. When the guide area 21 coincides with one of the flow areas 20, the opening work is completed. At this time, the coolant in the cooling gap 7 is discharged from the guide area 21 at the same time. During the adjustment, it is only necessary to start the No. 1 motor 25, and drive the two drive gears 26 to complete the rotation through the No. 1 drive shaft 24. The two drive gears 26 are meshed with the two No. 1 outer gear rings 23, thereby completing the drive of the annular adjustment member 19, and can actively control the position of the guide area 21, so as to complete the control of the outflow direction of the coolant in the cooling gap 7. That is, when the guide area When 21 coincides with the circulation area 20 above, the coolant in the cooling gap 7 is discharged from the circulation area 20 above the cooling jacket 6, which can intercept the coolant and force the coolant level in the cooling gap 7 to rise before it can be discharged from the circulation area 20. When the guide area 21 coincides with the circulation area 20 below, the coolant in the cooling gap 7 is discharged from the circulation area 20 below the cooling jacket 6, so that the coolant is discharged smoothly. Similarly, when the guide area 21 coincides with the circulation areas 20 on the left and right sides, the coolant in the cooling gap 7 is discharged from the circulation areas 20 on the left and right sides of the cooling jacket 6. At the same time, the final outflow position of the coolant can be controlled, so that the coolant is gathered in the set direction of the circulation area 20 after cooling is completed, thereby completing the control of the coolant flow discharge direction, which is convenient for free adjustment according to the cooling environment.

[0054] Embodiment 3: Based on the toggle unit provided in Embodiment 1, this embodiment provides a further technical solution of the toggle unit.

[0055] like Figures 11 to 14As shown, the two toggle units both include an annular passage area 27 that penetrates and is opened on one side of the cooling jacket 6, and a plurality of reinforcing members 28 are arranged in a circular array on the top of the annular passage area 27, and the annular passage area 27 is reinforced by the plurality of reinforcing members 28. A driving ring 29 is installed in the annular passage area 27 in a concentric and sealed manner, and a second outer gear ring 30 is fixedly sleeved on the outside of the driving ring 29. A plurality of toggle members 31 are arranged in a circular array in the cooling jacket 6 on one side of the driving ring 29. A second driving shaft 32 is installed outside the two cooling jackets 6 for common rotation through a bracket, and two rotating gears 3 are fixedly sleeved on the outside of the second driving shaft 32. 3, and the two rotating gears 33 are respectively meshed and transmission-connected with the second outer gear rings 30 of the two cooling jackets 6, and a second motor 34 is installed on one side of one of the cooling jackets 6 through a bracket, and the output end of the second motor 34 is transmission-connected with the second drive shaft 32, and the two drive rings 29 are synchronously linked through the second drive shaft 32 and the two rotating gears 33 to complete the rotation, and a follower unit is installed on both cooling jackets 6, and the follower unit is linked with the second drive shaft 32, and the follower unit is matched with the toggle member 31, and the follower unit is used to receive the power of the second drive shaft 32 to complete the synchronous and continuous pressurization and air supply action;

[0056] It is worth noting that when the coolant in the cooling jacket 6 is dialed: by providing a dial unit, the No. 2 motor 34 is started, and the two rotating gears 33 are driven to rotate via the No. 2 driving shaft 32, and the No. 2 outer gear rings 30 on the two cooling jackets 6 are synchronously driven to rotate, and the multiple dial members 31 are synchronously rotated when the driving ring 29 rotates, and the dialing of the coolant is completed by the rotation of the dial plate 312 in the cooling gap 7, so that the coolant flows in the cooling gap 7, further improving the cooling uniformity, and can force the coolant to flow, and can be opened and closed freely. At the same time, when the No. 2 drive shaft 32 rotates, the No. 1 gear 40 is synchronously linked to rotate. Since the No. 2 gear 41 is meshed with the No. 1 gear 40, the reciprocating screw 38 rotates accordingly, linking the screw nut 39 thereon to move back and forth. During the reciprocating movement of the screw nut 39, the power rod 44 and the piston head 43 are pushed to move back and forth in the air cylinder 42. During the downward movement of the piston head 43, the gas in the air cylinder 42 below the piston head 43 is squeezed out through the No. 2 outlet pipe 48, and then the gas is sent into the No. 2 annular cavity 35 through the air inlet pipe 37, and then The air cavity 311 delivers gas into the air nozzle 314 and sprays it out, so that when the toggle plate 312 toggles the coolant, the coolant is pushed by the gas at the same time, which improves the toggle effect on the coolant. In addition, since the toggle member 31 is connected to the rotating ring 36, the toggle member 31 is restricted and guided by the second annular cavity 35, so that the toggle member 31 obtains a stable state, which improves the stability of the toggle member 31. At the same time, when the piston head 43 moves downward, the external gas is introduced into the upper part of the gas cylinder 42 through the first inlet pipe 45 for standby use. When the piston head 43 moves downward, the gas in the gas cylinder 42 at The gas above the piston head 43 is squeezed out through the No. 1 outlet pipe 46, and is sent to the gas nozzle 314 again and sprayed out. At the same time, the external gas is introduced into the lower part of the gas cylinder 42 through the No. 2 inlet pipe 47 for standby use. That is, in the up and down reciprocating pushing path of the piston head 43, the No. 1 outlet pipe 46 and the No. 2 outlet pipe 48 can continuously send the gas in the gas cylinder 42 into the gas nozzle 314 to complete the pneumatic pushing. At the same time, the power rod 44 and the reciprocating screw rod 38 adopt a detachable design, which can completely release the power of the power rod 44, so that the operator can choose the assembly and use according to the cooling environment;

[0057] In the embodiment of the present invention, the plurality of toggle members 31 all include an air cavity 311 arranged on one side of the drive ring 29, the air cavity 311 is hollow in design, the air cavity 311 is in sliding contact with the inner wall of the cooling jacket 6, a toggle plate 312 is detachably mounted on the air cavity 311 by bolts, a plurality of channels 313 are equidistantly penetrated on the toggle plate 312, a gas nozzle 314 is mounted in each of the plurality of channels 313, the gas nozzle 314 is connected to the air cavity 311, and a gas nozzle 314 is mounted at the end of the gas nozzle 314 to introduce gas into the cooling jacket 6 in one direction. A one-way valve is provided, and a second annular cavity 35 is installed near the first annular cavity 13 in the cooling jacket 6. A rotating ring 36 is rotatably installed on one side of the second annular cavity 35 near the toggle member 31. The rotating ring 36 is sealed and rotatably connected with the second annular cavity 35. The rotating ring 36 is connected with the air cavities 311 of the plurality of toggle members 31, and the plurality of air cavities 311 are communicated with the second annular cavity 35 through the rotating ring 36. An air inlet pipe 37 is installed on one side of the second annular cavity 35, and the top of the air inlet pipe 37 is correspondingly arranged through the cooling jacket 6;

[0058] In the embodiment of the present invention, the two follower units both include a reciprocating screw 38 rotatably mounted on the outer wall of the cooling jacket 6 through a bracket, a screw nut 39 is correspondingly sleeved on the outside of the reciprocating screw 38, and the reciprocating forward and backward movement of the screw nut 39 is completed by the rotation of the reciprocating screw 38, a No. 1 gear 40 is sleeved on the outside of the No. 2 driving shaft 32, a No. 2 gear 41 is transmission-mounted on one end of the reciprocating screw 38, and the No. 2 gear 41 is meshed and transmission-connected with the No. 1 gear 40, and the reciprocating screw 38 is driven to complete the rotation through the No. 1 gear 40 and the No. 2 gear 41, and an air cylinder 42 is installed on one side of the outer wall of the cooling jacket 6 through a bracket, the front end of the air cylinder 42 is open in design, and a top cover is detachably installed on the top of the air cylinder 42 through a thread, a piston head 43 is slidingly sealed installed in the air cylinder 42, and a power rod 44 is concentrically installed on the top of the piston head 43, and the sliding seal on the top of the power rod 44 passes through the top cover, and the power rod The top of the cylinder 44 is detachably fixedly connected to the screw nut 39 by bolts, a No. 1 inlet pipe 45 is connected to one side of the top of the cylinder 42, and a No. 2 one-way valve for introducing gas into the cylinder 42 in one direction is installed at the end of the No. 1 inlet pipe 45, and a No. 1 outlet pipe 46 is connected to the other side of the top of the cylinder 42, and the No. 1 outlet pipe 46 is located above the piston head 43, and a No. 3 one-way valve for leading gas out of the cylinder 42 in one direction is installed at the end of the No. 1 outlet pipe 46. A No. 2 inlet pipe 47 is installed on one side of the bottom of the gas cylinder 42, and a No. 4 one-way valve is installed at the end of the No. 2 inlet pipe 47 to introduce the gas into the gas cylinder 42 in a one-way manner. A No. 2 outlet pipe 48 is installed on the other side of the bottom of the gas cylinder 42, and the No. 2 outlet pipe 48 is located below the piston head 43. A No. 5 one-way valve is installed at the end of the No. 2 outlet pipe 48 to lead the gas out of the gas cylinder 42 in a one-way manner, and the No. 1 outlet pipe 46 and the No. 2 outlet pipe 48 are both connected to the inlet pipe 37 through pipelines.

[0059] Embodiment 4: A PEEK thick-walled pipe extrusion production process, the extrusion production process specifically comprises the following steps:

[0060] Step 1: heating, melting and extruding the injection molding raw materials through the injection molding mechanism 2;

[0061] Step 2, the injection molding raw material enters the extrusion mold 3 to complete the extrusion molding of the pipe body 4;

[0062] Step 3: After the tube body 4 is sent out through the extrusion die 3, it is introduced into the forming mechanism. At the same time, two cooling sleeves 6 are used to cool down the different temperatures on both sides of the forming mechanism, so that the inner wall and outer wall of the tube body 4 are synchronously shaped through the forming mechanism.

[0063] The present invention provides a PEEK thick-walled pipe extrusion production device and process, and the specific working principle is as follows: first, the injection molding raw material is heated, melted and extruded through the injection molding mechanism 2, and then the injection molding raw material enters the extrusion mold 3 to complete the extrusion molding of the pipe body 4, and then the pipe body 4 is sent out through the extrusion mold 3 and introduced into the molding mechanism, and the inner wall and the outer wall of the pipe body 4 are synchronously shaped by the molding mechanism, thereby improving the quality of the pipe body 4;

[0064] At the same time, two cooling jackets 6 are correspondingly arranged on both sides of the forming mechanism, and the two cooling jackets 6 are used to complete the cooling and cooling of the differential temperature on both sides of the forming mechanism. The design of differential temperature is conducive to the preliminary cooling of the pipe body 4 before entering the forming mechanism, which is conducive to the forming work. Then, another cooling jacket 6 is used to complete the deep cooling and shaping work. The specific cooling temperature can be freely set according to the actual use requirements, so as to obtain a stable cooling state. At the same time, the design of the cooling jacket 6 is adopted, and the coolant is sent into the cooling jacket 6 in a shielded manner through the cooling unit to avoid damage to the pipe body 4. Then, the coolant fills the cooling gap 7 of the cooling jacket 6, thereby making the pipe body 4 continuously contact with the coolant in the cooling gap 7, ensuring the uniformity of cooling, and at the same time increasing the cooling area, which is conducive to the rapid cooling of the pipe body 4, and the coolant is continuously discharged from the discharge gap 22, so as to complete the rapid circulation of the coolant and improve the cooling accuracy;

[0065] At the same time, the discharge position of the two cooling sleeves 6 is actively fine-tuned through the discharge unit, so that the coolant in the cooling gap 7 is drained through the guide area 21 of the discharge unit, thereby completing the control of the coolant flow direction, thereby obtaining coolant flow directions with different effects, and different cooling states. With the cooperation of the toggle unit, the toggle unit completes the toggle work of the coolant in the cooling gap 7, so that the coolant flows in the cooling gap 7, so that the coolant temperature in the coolant gap is balanced, and the cooling effect is guaranteed. At the same time, in the toggle work of the toggle unit, the synchronous linkage follower unit completes the action, forcing the external gas to be introduced into the cooling sleeve 6 to complete the pushing action, further promoting the flow of the coolant, so that the pipe body 4 obtains a good cooling effect, which is beneficial to the subsequent injection molding work.

[0066] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0067] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A PEEK thick-walled pipe extrusion production device, comprising a machine platform (1), an injection molding mechanism (2) mounted on the upper surface of the machine platform (1), an extrusion die (3) mounted in communication with the output end of the injection molding mechanism (2), a pipe body (4) extruded and formed on the extrusion die (3), characterized in that: A recycling box (5) is installed at the front end of the machine (1), and a molding mechanism is installed in the recycling box (5). The molding mechanism is arranged in cooperation with the extrusion die (3), and the inner wall and the outer wall of the pipe body (4) molded by the extrusion die (3) are synchronously molded by the molding mechanism; Two cooling jackets (6) are concentrically mounted on both sides of the molding mechanism through brackets, and the two cooling jackets (6) form two cooling gaps (7) on both sides of the molding mechanism. A cooling unit is mounted on the two cooling jackets (6) on the side close to the molding mechanism, and a circulating cooling action is performed in the cooling gaps (7) of the two cooling jackets (6) in a manner of differential temperature through the cooling unit. A discharge unit is mounted on the ends of the two cooling jackets (6) away from the molding mechanism, and the discharge unit is used to guide and discharge the coolant in the two cooling jackets (6). A toggle unit is mounted on the two cooling jackets (6), and the toggle unit is used to actively toggle and mix the coolant in the two cooling jackets (6). The discharge unit and the toggle unit jointly complete the active adjustment action of the cooling effect in the two cooling jackets (6); The shaping mechanism comprises a shaping inner shaft (8) and a shaping outer ring (9); one end of the shaping inner shaft (8) is detachably fixedly connected to an extrusion die (3); the shaping inner shaft (8) and the extrusion die (3) are arranged concentrically; the shaping outer ring (9) is concentrically sleeved outside the shaping inner shaft (8); the gap between the shaping outer ring (9) and the shaping inner shaft (8) is arranged in coordination with the extrusion die (3); and the pipe body (4) is correspondingly arranged between the shaping inner shaft (8) and the shaping outer ring (9) to complete the shaping action; Assembly frames (12) are detachably mounted on both sides of the top of the recovery box (5), and the two assembly frames (12) are detachably fixedly connected to the two cooling jackets (6) and the side walls of the shaping outer ring (9) respectively; The two cooling units each comprise a first annular cavity (13) installed in the cooling jacket (6) on one side close to the shaping outer ring (9); an annular area (14) is provided through the first annular cavity (13) on the side facing the shaping outer ring (9); an annular water cavity (15) is installed at the top of the annular area (14); a plurality of nozzles (16) are provided in a circular array on the inner wall of the annular water cavity (15); the plurality of nozzles (16) are shielded by the annular area (14); a delivery pipe (17) is provided through one side of the cooling jacket (6); and the bottom of the delivery pipe (17) is connected to the annular water cavity (15); The two discharge units each comprise an annular member (18) concentrically mounted on a side of the cooling jacket (6) away from the shaping outer ring (9); an annular adjusting member (19) is coaxially mounted on one side of the annular member (18) for rotation; four flow areas (20) are provided in a circular array on the annular member (18); and a guide area (21) is provided through the annular adjusting member (19); active control of the flow direction of the coolant in the two cooling jackets (6) is achieved by movement of the guide area (21) and respective coordination of the four flow areas (20); and a discharge gap (22) is formed between the annular member (18), the annular adjusting member (19) and the pipe body (4); A No. 1 outer gear ring (23) is sleeved on the outside of the annular adjustment member (19), a No. 1 drive shaft (24) is mounted on the top of the two cooling jackets (6) through a bracket so as to rotate together, and a No. 1 motor (25) is mounted on one side of one of the cooling jackets (6) through a bracket, the output end of the No. 1 motor (25) is transmission-connected to the No. 1 drive shaft (24), and two drive gears (26) are fixedly sleeved on the outside of the No. 1 drive shaft (24), the two drive gears (26) are respectively meshed and transmission-connected with the No. 1 outer gear rings (23) on the two annular adjustment members (19), and fine adjustment is completed by synchronously linking the two annular adjustment members (19) through the No. 1 drive shaft (24) and the two drive gears (26); Both toggle units include an annular passage area (27) extending through one side of the cooling jacket (6), a plurality of reinforcing members (28) being arranged in a circular array at the top of the annular passage area (27), a drive ring (29) being coaxially and sealingly rotatably mounted in the annular passage area (27), a second outer gear ring (30) being arranged on an outer fixed sleeve of the drive ring (29), and a plurality of toggle members (31) being arranged in a circular array in the cooling jacket (6) on one side of the drive ring (29); A second drive shaft (32) is mounted on the outside of the two cooling sleeves (6) via a bracket so as to rotate together. Two rotating gears (33) are arranged on the fixed sleeve outside the second drive shaft (32). The two rotating gears (33) are respectively meshed and transmission-connected with the second outer gear rings (30) of the two cooling sleeves (6). A second motor (34) is mounted on one side of one of the cooling sleeves (6) via a bracket. The output end of the second motor (34) is transmission-connected with the second drive shaft (32). The two drive rings (29) are synchronously linked to each other through the second drive shaft (32) and the two rotating gears (33) to complete rotation. A follower unit is mounted on each of the two cooling sleeves (6). The follower unit is linked to the second drive shaft (32). The follower unit is used to receive power from the second drive shaft (32) to complete a synchronous and continuous pressurized air supply action.

2. A PEEK thick-walled pipe extrusion production device according to claim 1, characterized in that: The plurality of toggle members (31) each include an air cavity (311) disposed on one side of a drive ring (29), a toggle plate (312) being mounted on the air cavity (311), a plurality of channels (313) being equidistantly penetrated through the toggle plate (312), an air nozzle (314) being mounted in each of the plurality of channels (313), a second annular cavity (35) being mounted in the cooling jacket (6) near the first annular cavity (13), a rotating ring (36) being rotatably mounted in the second annular cavity (35) near one side of the toggle member (31), the rotating ring (36) being connected to the air cavities (311) of the plurality of toggle members (31), and the plurality of air cavities (311) being connected to the second annular cavity (35) through the rotating ring (36), an air inlet pipe (37) being mounted in communication with one side of the second annular cavity (35), the top of the air inlet pipe (37) being arranged to pass through the cooling jacket (6) in correspondence.

3. A PEEK thick-walled pipe extrusion production device according to claim 2, characterized in that: The two follower units each include a reciprocating screw (38) rotatably mounted on the outer wall of the cooling jacket (6) via a bracket, a screw nut (39) correspondingly sleeved on the outside of the reciprocating screw (38), and the reciprocating forward and backward movement of the screw nut (39) is completed by the rotation of the reciprocating screw (38), a first gear (40) is sleeved on the outside of the second drive shaft (32), a second gear (41) is transmission-mounted on one end of the reciprocating screw (38), and the second gear (41) is meshingly transmission-connected with the first gear (40); An air cylinder (42) is mounted on one side of the outer wall of the cooling jacket (6) via a bracket, and a top cover is mounted on the top of the air cylinder (42). A piston head (43) is mounted in a sliding seal inside the air cylinder (42), and a power rod (44) is mounted concentrically on the top of the piston head (43). The sliding seal on the top of the power rod (44) passes through the top cover, and the top of the power rod (44) is detachably fixedly connected to a screw nut (39). A No. 1 inlet pipe (45) is mounted on one side of the top of the air cylinder (42), and a No. 1 outlet pipe (46) is mounted on the other side of the top of the air cylinder (42). A No. 2 inlet pipe (47) is mounted on one side of the bottom of the air cylinder (42), and a No. 2 outlet pipe (48) is mounted on the other side of the bottom of the air cylinder (42), and both the No. 1 outlet pipe (46) and the No. 2 outlet pipe (48) are connected to the air inlet pipe (37) through a pipeline.

4. A PEEK thick-walled pipe extrusion production process, characterized in that: A PEEK thick-walled pipe extrusion production device according to any one of claims 1 to 3 is used, and the extrusion production process specifically comprises the following steps: Step 1: heating, melting and extruding the injection molding raw material through the injection molding mechanism (2); Step 2, the injection molding raw material enters the extrusion mold (3) to complete the extrusion molding of the pipe body (4); Step 3: After the tube body (4) is sent out through the extrusion die (3), it is introduced into the forming mechanism, and two cooling sleeves (6) are used to cool down the two sides of the forming mechanism at different temperatures, thereby completing the synchronous shaping of the inner wall and the outer wall of the tube body (4) through the forming mechanism.

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