A PEEK composite material continuous extrusion molding device and method
By designing the PEEK composite material continuous extrusion molding device, the coordination of strengthening components and adjustment components is used to solve the problem of not completely melting the raw materials in the twin-screw extruder, and efficient and environmentally friendly PEEK composite material molding is achieved, improving product quality and productivity.
Patent Information
- Application Number
- CN202411296418.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2044-09-18
AI Technical Summary
When the existing twin-screw extruders process PEEK composite materials, some raw materials are not completely melted due to the different sizes of the material particles, resulting in uneven extrusion molding, which affects product quality, and reduces production efficiency or increases energy consumption.
A PEEK composite material continuous extrusion molding device is designed, using reinforcement components and adjustment components to detect the melting state of the raw materials through pressure sensors, adjust the heating time and raw material addition amount, ensure that the raw materials are fully melted, and pass through the pneumatic telescopic rod and sliding plate. The structures of the same achieve uniform heating and transportation of raw materials.
It is achieved to ensure complete melting of PEEK composite materials without reducing production efficiency and energy consumption, avoid uneven extrusion molding, improve product quality, and reduce energy consumption per unit product.
Smart Images

Figure CN118977392B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of PEEK composite material extrusion molding, in particular to a PEEK composite material continuous extrusion molding device and method. Background Art
[0002] PEEK composite materials are special polymer materials that can be manufactured and processed into various mechanical parts, such as automobile gears, oil screens, shift starter discs; aircraft engine parts, automatic washing machine rotors, medical equipment parts, etc. At present, twin-screw extruders are usually used when processing PEEK composite materials. During the extrusion molding process of PEEK composite materials by existing twin-screw extruders, some larger PEEK composite material raw material particles have not been completely melted due to the different sizes of material particles, while some smaller PEEK composite material raw material particles have been completely melted. Some PEEK composite material raw material particles are extruded without being completely melted, resulting in uneven extrusion molding. At this time, if the conveying speed is reduced, the production efficiency will be affected. If the temperature of the heating source is increased, the energy consumption will increase, which is not environmentally friendly and reduces the economic benefits.
[0003] For example, the twin-screw extruder with publication number CN104309095B reduces the air content in the raw material after melting, but it cannot avoid the problem that some PEEK composite material raw material particles are extruded without being completely melted due to the different sizes of the material particles;
[0004] Therefore, a PEEK composite material continuous extrusion molding device and method are proposed. Summary of the invention
[0005] In view of the shortcomings of the prior art, the present invention provides a PEEK composite material continuous extrusion molding device and method, which solves the problem that in the process of extrusion molding of PEEK composite materials by the existing twin-screw extruder, it is impossible to avoid uneven extrusion molding due to different material particle sizes and affect product quality without reducing production efficiency or increasing energy consumption.
[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A PEEK composite material continuous extrusion molding device, comprising an extruder housing, a molding die fixedly installed at the extrusion end of the extruder housing, a feed hopper fixed at the top of the extruder housing, an output shaft passing through the extruder housing, and a power component installed at one end of the extruder housing, wherein a strengthening component for increasing the raw material heating time and an adjusting component for adjusting the raw material addition amount are arranged inside the extruder housing, and the strengthening component includes:
[0007] The pressure sensor is fixed inside the extruder housing to detect the pressure;
[0008] A support rod, fixed on the output shaft, used to provide support for other parts in the strengthening assembly, a support shaft is passed through the support rod, a baffle is fixed on the support shaft, and a positioning plate is fixed on the side wall of the baffle;
[0009] A fixed seat is fixed on the output shaft to provide support for other parts in the strengthening assembly. A movable shaft is movably installed on the fixed seat. A pneumatic telescopic rod is fixed to one end of the movable shaft. A rotating sleeve is fixed to one end of the pneumatic telescopic rod. A rotating ring is passed through the rotating sleeve. A sliding rod is passed through the rotating ring. One end of the sliding rod is passed through the baffle.
[0010] Preferably, the output shaft is hollow, one end of the pneumatic telescopic rod is connected to the output shaft through a stainless steel bellows, an air pump is fixed to the side wall of the output shaft through a mounting seat, an air pipe is fixed to one end of the air pump, and one end of the air pipe is fixed to the output shaft.
[0011] Preferably, a fixing rod is fixed on the side wall of the rotating sleeve, a fixing shaft is passed through the fixing rod, a push plate is fixed to one end of the fixing shaft, a convex rod is fixed to the outer surface of one side of the push plate, a spring 1 is fixed to the side wall of the push plate, a support plate is fixed to the other end of the spring 1, and one end of the support plate is fixed to the side wall of the fixing rod.
[0012] Preferably, a limiting rod is fixed on the side wall of the fixing rod, one end of the limiting rod is slidably abutted against a reinforcing plate, a positioning shaft is fixed on the side wall of the reinforcing plate, one end of the positioning shaft is movably mounted on the side wall of the fixing rod, and a sliding plate is slidably mounted in the reinforcing plate.
[0013] Preferably, a sliding rod included in the adjustment assembly is fixed on the side wall of the baffle, a power rod is slidably inserted into the extruder housing, a slide plate is fixed to one end of the power rod, one end of the slide plate is tilted, a magnet is fixed in the power rod, a magnetic block is fixed on the top of the extruder housing, and the magnetic block and the magnet are magnetically attracted to each other.
[0014] Preferably, an upper extrusion rod is fixed on the top of the power rod, one end of the upper extrusion rod is inclined, one end of the upper extrusion rod is slidably abutted against a lower extrusion rod, one end of the lower extrusion rod is inclined and slidably adapted to the inclined end of the upper extrusion rod, one end of the lower extrusion rod is fixed with an adjustment plate, one end of the adjustment plate is slidably penetrated into the feed hopper, and a second spring is fixed in the adjustment plate.
[0015] Preferably, a guide rod is fixed to the other end of the second spring, one end of the guide rod is fixed to the top of the extruder housing, and one end of the guide rod is slidably inserted into the adjustment plate.
[0016] Preferably, the power assembly includes a power motor fixed at one end of the output shaft, a spiral blade is fixed on the side wall of the output shaft, a driving wheel is fixedly passed through the output shaft, the driving wheel is connected to a driven wheel through a belt drive, a driven shaft is fixedly passed through the driven wheel, and one end of the driven shaft is passed through the extruder housing.
[0017] The present invention also provides a method for adjusting a PEEK composite material continuous extrusion molding device, comprising the following steps:
[0018] S1. Turn on the power element through the control console and add the PEEK composite material raw material particles into the extruder housing from the feed hopper;
[0019] S2, measuring the pressure of the strengthening component in the extruder housing through a pressure sensor and transmitting the measured data to the control console;
[0020] S3, starting the strengthening component according to the measurement data of the pressure sensor in step S2;
[0021] S4, according to the operating state of the strengthening component in step S3, the adaptive operation adjustment component adjusts the amount of raw material added;
[0022] S5. Close the strengthening component according to the measurement data of the pressure sensor in step S2.
[0023] Preferably, the flip angle of the baffle in the strengthening assembly is between 0-30°.
[0024] The present invention provides a PEEK composite material continuous extrusion molding device and method. Compared with the prior art, it has the following beneficial effects:
[0025] (1) The PEEK composite material continuous extrusion molding device and method are provided with an extruder housing, a power motor, an output shaft, spiral blades, a driven shaft, a driving wheel, a belt, a driven wheel, and a feed hopper. The granular PEEK composite material to be processed is placed in the feed hopper, and the power motor is controlled to operate by a control console. The granular PEEK composite material is conveyed simultaneously by two sets of spiral blades, thereby increasing the conveying volume. At the same time, having a higher mixing efficiency can also improve production efficiency, reduce production time, and reduce energy consumption per unit product.
[0026] (2) The PEEK composite material continuous extrusion molding device and method are provided with an air pump, an air pipe, a base, a movable shaft, a pneumatic telescopic rod, a rotating sleeve, a rotating ring, a sliding rod, a baffle, a positioning plate, a support shaft, a support rod, a fixed rod, a fixed shaft, a push plate, a convex rod, a spring, a support plate, a limit rod, a positioning shaft, a reinforcing plate, a sliding plate, and a pressure sensor. When the power motor is started to convey the granular PEEK composite material, when these raw materials enter the heating section of the extruder housing, they begin to melt due to the heat. During the melting process, the granular raw materials close to the extruder housing will melt first, and the granular raw materials close to the output shaft will melt more slowly. When the solid-liquid mixed raw materials that are not completely melted flow through the reinforcing component, the solid particles in the raw materials will collide with the surfaces of the fixed rod and the push plate, and will be moved along the surface of the fixed rod and the push plate under the disturbance of the fixed rod and the push plate. The baffle plate and the positioning plate flow to the side close to the extruder housing, so that the granular PEEK composite material that has not been completely melted can be closer to the heating source here, so as to be fully melted, so that the solid raw material particles are maintained in the area close to the heating source for a longer time, the heating effect is better, and the melting is more thorough, ensuring that the granular PEEK composite material can be completely melted, without increasing the temperature of the heating source or reducing the speed of the power motor, while saving energy and protecting the environment without affecting production efficiency, avoiding the situation where the PEEK composite material is extruded without being completely melted, resulting in uneven extrusion molding, affecting product quality or clogging inside the extruder, causing production interruption, and detecting the extrusion force received by the sliding plate through another set of pressure sensors fixed between the sliding plate and the reinforcing plate to improve the accuracy of the pressure detection results.
[0027] (3) The PEEK composite material continuous extrusion molding device and method are provided with a sliding rod, a slide plate, a power rod, a magnet, a magnetic block, an upper extrusion rod, a lower extrusion rod, an adjustment plate, a spring 2, and a guide rod. When the inclination angle of the reinforcing component increases from the initial position, the distance that the adjustment plate extends into the feed hopper will increase synchronously. At this time, the amount of raw material entering the extruder housing through the feed hopper is reduced, so that the raw material in the extruder housing can be fully melted, and the amount of incompletely melted granular PEEK composite material is reduced. The melting efficiency of the granular PEEK composite material is improved by adaptively adjusting the injection amount of the raw material, and further avoids the situation where the PEEK composite material is extruded without being completely melted, resulting in uneven extrusion molding, affecting product quality, or clogging inside the extruder, resulting in production interruption. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;
[0029] Figure 2 It is a schematic diagram of the position of the power motor of the present invention;
[0030] Figure 3 is a side sectional view of the extruder housing of the present invention;
[0031] Figure 4 is a structural diagram of the output shaft of the present invention;
[0032] Figure 5 It is a schematic diagram of the combined state of the strengthening component of the present invention;
[0033] Figure 6 Another perspective schematic diagram of the combined state of the reinforcement components of the present invention;
[0034] Figure 7 It is a schematic diagram of the decomposed state of the baffle of the present invention;
[0035] Figure 8 It is a structural diagram of the fixing rod of the present invention;
[0036] Fig. 9 It is a structural diagram of the reinforcing plate of the present invention;
[0037] Fig.10 It is a schematic diagram of the combined state of the guide rod of the present invention;
[0038] Fig.11 It is a schematic diagram of the disassembled state of the guide rod of the present invention.
[0039] In the figure: 1. extruder housing; 101. forming die; 11. power motor; 12. output shaft; 13. spiral blade; 14. driven shaft; 15. driving wheel; 16. belt; 17. driven wheel; 18. feed hopper; 2. air pump; 21. air pipe; 22. base; 221. movable shaft; 23. pneumatic telescopic rod; 24. rotating sleeve; 25. rotating ring; 26. sliding rod; 27. baffle; 271. positioning plate; 28. support Axis; 29, support rod; 3, fixed rod; 31, fixed shaft; 32, push plate; 33, convex rod; 34, spring one; 35, support plate; 36, limit rod; 37, positioning shaft; 38, reinforcement plate; 39, sliding plate; 4, sliding rod; 41, slide plate; 42, power rod; 43, magnet; 44, magnetic block; 45, upper extrusion rod; 46, lower extrusion rod; 47, adjustment plate; 48, spring two; 49, guide rod; 5, pressure sensor. DETAILED DESCRIPTION
[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0041] See also Figures 1 to 11 , the present invention provides the following technical solutions:
[0042] Embodiment 1: A PEEK composite material continuous extrusion molding device, comprising an extruder housing 1, a molding die 101 fixedly installed at the extrusion end of the extruder housing 1, a feed hopper 18 fixedly installed at the top of the extruder housing 1, an output shaft 12 movably installed in the extruder housing 1 through a bearing, and a power assembly installed at one end of the extruder housing 1, the power assembly comprising a power motor 11 fixedly connected to one end of the output shaft 12 through a coupling, a spiral blade 13 fixedly installed on the side wall of the output shaft 12, a driving wheel 15 fixedly penetrated on the output shaft 12, the driving wheel 15 is connected to a driven wheel 17 through a belt 16, a driven shaft 14 is fixedly penetrated in the driven wheel 17, one end of the driven shaft 14 is movably installed in the extruder housing 1 through a bearing, and a spiral blade 13 is also fixedly installed on the side wall of the driven shaft 14.
[0043] When in use, the granular PEEK composite material to be processed is put into the feed hopper 18, and the power motor 11 is controlled to run through the control console. The power motor 11 drives the output shaft 12 to rotate, and the output shaft 12 drives the spiral blade 13 to rotate. The output shaft 12 synchronously drives the driving wheel 15 to rotate, and the driving wheel 15 drives the driven wheel 17 to rotate through the belt 16. The driven wheel 17 drives the driven shaft 14 to rotate, and the driven shaft 14 drives another spiral blade 13 to rotate. The granular PEEK composite material is transported by the two groups of spiral blades 13 at the same time, and after heating, it is extruded from the molding die 101 at the extrusion end.
[0044] Embodiment 2, the technical solution of this embodiment is different from that of embodiment 1 and includes: a strengthening component for increasing the heating time of raw materials is arranged inside the extruder housing 1, and the strengthening component includes: an air pump 2, an air pipe 21, a base 22, a movable shaft 221, a pneumatic telescopic rod 23, a rotating sleeve 24, a rotating ring 25, a sliding rod 26, a baffle 27, a positioning plate 271, a support shaft 28, a support rod 29, a fixed rod 3, a fixed shaft 31, a push plate 32, a convex rod 33, a spring 34, a support plate 35, a limit rod 36, a positioning shaft 37, a reinforcing plate 38, a sliding plate 39, and a pressure sensor 5. The number of strengthening components is three groups, and the three groups of strengthening components are distributed on the output shaft 12 located in the middle of the heating section of the extruder housing 1. The three groups of strengthening components are staggered, and three groups of staggered strengthening components are also arranged at the driven shaft 14;
[0045] There are two groups of pressure sensors 5, one end of which is fixedly mounted on the top of the inner wall of the extruder housing 1 to detect the pressure at the strengthening component;
[0046] One end of the base 22 is fixedly mounted on the output shaft 12 to provide support for other parts in the strengthening assembly. A movable shaft 221 is movably mounted on the base 22 through a bearing. A pneumatic telescopic rod 23 is fixedly mounted on one end of the movable shaft 221. A rotating sleeve 24 is fixedly mounted on one end of the pneumatic telescopic rod 23. A rotating ring 25 is movably installed in the rotating sleeve 24 through a bearing. A sliding rod 26 is fixedly mounted in the rotating ring 25. One end of the sliding rod 26 is slidably mounted in a sliding groove provided on the inner and outer walls of the baffle 27.
[0047] The output shaft 12 is hollow inside, one end of the pneumatic telescopic rod 23 is connected to the output shaft 12 through a stainless steel bellows, an air pump 2 is fixedly installed on the side wall of the output shaft 12 through a mounting seat, an air pipe 21 is fixedly installed at one end of the air pump 2, one end of the air pipe 21 is fixedly installed on the output shaft 12, the output shaft 12 and the air pump 2 are connected through the air pipe 21, and a battery can be fixedly installed at the bottom of the mounting seat to power the air pump 2;
[0048] One end of the support rod 29 is fixedly mounted on the output shaft 12 to provide support for other parts in the strengthening assembly. A support shaft 28 is movably mounted in the support rod 29 through a bearing. A baffle 27 is fixedly mounted on the support shaft 28. A positioning plate 271 is fixedly mounted on the side wall of the baffle 27.
[0049] A fixing rod 3 is fixedly installed on the side wall of the rotating sleeve 24, and a fixing shaft 31 is movably installed in the fixing rod 3 through a bearing, and a push plate 32 is fixedly installed at one end of the fixing shaft 31, and a group of convex rods 33 are fixedly installed on the outer surface of one side of the push plate 32, and sixty convex rods 33 form a group. A spring 34 is fixedly installed on the side wall of the push plate 32, and a supporting plate 35 is fixedly installed on the other end of the spring 34. One end of the supporting plate 35 is fixedly installed on the side wall of the fixing rod 3, and a limiting rod 36 is fixedly installed on the side wall of the fixing rod 3, and one end of the limiting rod 36 slides in a groove opened on the side wall of the reinforcing plate 38. A positioning shaft 37 is fixedly installed on the side wall of the reinforcing plate 38, and one end of the positioning shaft 37 is movably installed on the side wall of the fixing rod 3 through a bearing. A sliding plate 39 is slidably installed in the reinforcing plate 38, and one end of the sliding plate 39 abuts against one end of another group of pressure sensors 5, and the other end of the pressure sensor 5 is fixedly installed on the inner wall of the reinforcing plate 38.
[0050] The groove and the limiting rod 36 as well as the sliding groove and the sliding rod 26 are all in sliding fit, and the internal fluid can be squeezed from the groove to the outside of the groove during the sliding process.
[0051] When in use, when the power motor 11 is started to transport the granular PEEK composite material, when these raw materials enter the heating section of the extruder housing 1, they begin to melt due to the heat. During the melting process, the granular raw materials close to the extruder housing 1 will melt first, and the granular raw materials close to the output shaft 12 will melt more slowly.
[0052] When the partially incompletely melted solid-liquid mixed raw material flows through the reinforcing component, the solid particles in the raw material will hit the surface of the fixed rod 3 and the push plate 32, and flow along the baffle 27 and the positioning plate 271 to the side close to the extruder housing 1 under the disturbance of the fixed rod 3 and the push plate 32, so that the incompletely melted granular PEEK composite material can be closer to the heating source here, so as to be fully melted;
[0053] The support rod 29 provides support force to the support shaft 28, the support shaft 28 provides support force to the baffle 27, the output shaft 12 provides support force to the base 22, the base 22 provides support force to the movable shaft 221, and the movable shaft 221 provides support force to the pneumatic telescopic rod 23. The pressure sensor 5 measures the pressure value at the reinforcing component. When there are a lot of granular PEEK composite materials that are not completely melted in the fluid, these granular raw materials will occupy a part of the original space of the fluid, so that the density of the fluid increases, and they will collide with each other during the flow process, thereby increasing the pressure;
[0054] When the pressure sensor 5 detects that the pressure value at that place increases greatly, the signal is transmitted to the control console, and the air pump 2 is started by the control console. The air pump 2 injects air into the output shaft 12 through the air pipe 21, and transports it to the pneumatic telescopic rod 23 through the stainless steel bellows, so that the pneumatic telescopic rod 23 extends, and the pneumatic telescopic rod 23 drives the rotating sleeve 24 to move. The rotating sleeve 24 drives the rotating ring 25 to move and can flip around the rotating ring 25 as the axis. The rotating ring 25 drives the sliding rod 26 to slide along the sliding groove provided on the inner side of the baffle 27. The sliding rod 26 will push the baffle 27 at the same time to make the baffle 27 flip around the support shaft 28 as the axis, and the fixed rod 3 will drive the limit rod 36 to move. The positioning rod 36 slides along the groove on the side wall of the reinforcing plate 38, so that the reinforcing plate 38 turns over with the positioning shaft 37 as the axis, so that the fixed rod 3, the push plate 32, the baffle 27, the positioning plate 271 and the reinforcing plate 38 have a larger inclination angle, so that the raw material fluid containing more solid raw material particles is blocked by the opened fixed rod 3, the push plate 32, the baffle 27, the positioning plate 271 and the reinforcing plate 38, and is subjected to greater resistance, so that the solid raw material particles are maintained in the area closer to the heating source for a longer time and melted more thoroughly. The three groups of staggered reinforcing components on the same side enable the solid raw material particles to be maintained in the area closer to the heating source for a longer time, and the melting effect is better;
[0055] When the pressure sensor 5 detects that the increase in the pressure value at that location decreases from a larger state to a smaller or normal level, the air pump 2 is started by controlling the console to extract air from the pneumatic telescopic rod 23, so that the pneumatic telescopic rod 23 is restored to its initial state, and the fixed rod 3, the push plate 32, the baffle 27, the positioning plate 271 and the reinforcing plate 38 are all restored to their initial states. At this time, only the fixed rod 3 and the push plate 32 are in contact with the raw material fluid first, and then the baffle 27, the positioning plate 271 and the reinforcing plate 38 are in contact with the raw material fluid;
[0056] In the process of conveying the raw material fluid, the fixed rod 3 drives the push plate 32 to rotate synchronously with the output shaft 12 as the axis through the fixed shaft 31. In the process of rotation, the fixed rod 3 provides a supporting force to the support plate 35, and the support plate 35 provides a supporting force to the spring 1 34. The spring 1 34 provides an elastic force to the push plate 32 away from the side of the support plate 35. The direction of the raw material fluid flowing in the extruder housing 1 is from bottom to top, which will enable the push plate 32 to swing slightly with the fixed shaft 31 as the axis under the extrusion of the fluid and the elastic force of the spring 1 34. The push plate 32 drives the convex rod 33 to swing synchronously, intercepting the granular PEEK composite material in the fluid and applying a force, so that the granular PEEK composite material can flow to the side close to the extruder housing 1 and enter the area closer to the heating source, so that the granular PEEK composite material that is not completely melted is heated and melted;
[0057] During the flow of the raw material fluid, an extrusion force is applied to the sliding plate 39, causing the sliding plate 39 to move toward the side where the reinforcing plate 38 is located. When the raw material fluid contains incompletely melted granular PEEK composite materials, the extrusion force will increase. The extrusion force is detected by another set of pressure sensors 5 fixedly installed between the sliding plate 39 and the reinforcing plate 38, thereby improving the accuracy of the pressure detection results.
[0058] Embodiment 3, the technical solution of this embodiment is different from that of embodiment 2, including: an adjusting component for adjusting the amount of raw material added is arranged inside the extruder housing 1, and the adjusting component includes: a slide bar 4, a slide plate 41, a power rod 42, a magnet 43, a magnetic block 44, an upper extrusion rod 45, a lower extrusion rod 46, an adjusting plate 47, a second spring 48, and a guide rod 49;
[0059] The side wall of the baffle 27 is fixedly connected to one end of the slide rod 4, and the end of the slide rod 4 away from the baffle 27 is spherically arranged. A power rod 42 is slidably arranged in the extruder housing 1, and a seal is arranged between the power rod 42 and the extruder housing 1. A slide plate 41 is fixedly installed at one end of the power rod 42, and one end of the slide plate 41 is inclined. A magnet 43 is fixedly arranged in the power rod 42, and a magnetic block 44 is fixedly installed on the top of the extruder housing 1. The magnetic block 44 and the magnet 43 are magnetically attracted to each other. An upper extrusion rod 45 is fixedly installed on the top of the power rod 42, and the upper extrusion rod 45 One end of the upper extrusion rod 45 is tilted, one end of the lower extrusion rod 46 is tilted and slidably matched with the tilted end of the upper extrusion rod 45, one end of the lower extrusion rod 46 is fixedly installed with an adjustment plate 47, one end of the adjustment plate 47 is slidably penetrated in the feed hopper 18, a spring 48 is fixedly installed in the adjustment plate 47, the other end of the spring 48 is fixedly installed on the side wall of the guide rod 49, one end of the guide rod 49 is fixedly installed on the top of the extruder housing 1, and one end of the guide rod 49 is slidably penetrated in the adjustment plate 47.
[0060] When in use, when the inclination angle of the strengthening component increases from the initial position, the baffle 27 will drive the slide bar 4 to move synchronously, and the slide bar 4 will be closer to the inner wall of the extruder housing 1. When the slide bar 4 rotates with the output shaft 12, the distance that the slide bar 4 squeezes the slide plate 41 to move will increase, and the distance that the slide plate 41 drives the power rod 42 to move upward will increase. Through the magnetic attraction between the magnet 43 and the magnetic block 44, the magnet 43 can move in a straight line along the magnetic block 44 under the drive of the power rod 42, and the magnet 43 can remain in the current position when there is no external force. The power rod 42 synchronously drives the upper extrusion rod 45 to move, so that the upper extrusion rod 45 is separated from the lower extrusion rod 46, and the lower extrusion rod 46 no longer obtains the thrust away from the side of the feed hopper 18;
[0061] At this time, the spring 2 48 will apply a pulling force to the adjusting plate 47 on the side close to the feed hopper 18, so that the distance that the adjusting plate 47 extends into the feed hopper 18 increases, and the guide rod 49 and the adjusting plate 47 slide together, so that the adjusting plate 47 only moves in a straight line when moving. At this time, the amount of raw materials entering the extruder housing 1 through the feed hopper 18 is reduced, so that the raw materials in the extruder housing 1 can be fully melted, and the amount of incompletely melted granular PEEK composite materials is reduced;
[0062] At this time, the conveying volume, conveying speed and heating source temperature of the extruder housing for the granular PEEK composite material are matched with each other and are in a relatively reasonable range. After the reinforcement component returns to its initial position, the adjustment plate is still in the state of extending into the feed hopper.
[0063] In another embodiment, the spring 2 is replaced with a hydraulic device, and a force is applied to the adjustment plate 47 by the hydraulic device so that the distance that the adjustment plate 47 extends into the feed hopper 18 is increased compared to the initial state.
[0064] In another embodiment, a hydraulic device is fixed at the bottom of the upper extrusion rod 45. After the reinforcement assembly is reset to the initial position, the control console controls the hydraulic device according to the data of the pressure sensor 5 in the reinforcement plate 38 and the pressure sensor 5 fixed on the inner wall of the extruder housing 1 to drive the upper extrusion rod to be gradually lowered, so that the distance that the adjustment plate 47 extends into the feed hopper 18 is gradually restored to the initial position, and the feed amount is gradually increased without increasing the unmelted PEEK composite material particles in the fluid.
[0065] The embodiment of the present invention also provides a method for adjusting a PEEK composite material continuous extrusion molding device, comprising the following steps:
[0066] S1, start the power element through the control console, and add the PEEK composite material raw material particles from the feed hopper 18 into the extruder housing 1;
[0067] S2, measuring the pressure at the reinforcing component in the extruder housing 1 through the pressure sensor 5 and transmitting the measured data to the control console;
[0068] S3, starting the strengthening component according to the measurement data of the pressure sensor 5 in step S2;
[0069] S4, according to the operating state of the strengthening component in step S3, the adaptive operation adjustment component adjusts the amount of raw material added;
[0070] S5. Close the strengthening component according to the measurement data of the pressure sensor 5 in step S2.
[0071] The flip angle of the baffle 27 in the strengthening assembly is between 0-30 degrees.
[0072] The pressure sensor 5 used in the embodiment of the present invention is a high temperature resistant sensor including but not limited to the model XTEH-10LAC-190M.
[0073] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0074] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0075] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A PEEK composite material continuous extrusion molding device, comprising an extruder housing (1), a molding die (101) fixedly mounted at the extrusion end of the extruder housing (1), a feed hopper (18) fixed at the top of the extruder housing (1), an output shaft (12) passing through the extruder housing (1), and a power assembly mounted at one end of the extruder housing (1), characterized in that: The extruder housing (1) is provided with a strengthening component for increasing the heating time of the raw materials and a regulating component for regulating the amount of raw materials added, wherein the strengthening component comprises: A pressure sensor (5) is fixed inside the extruder housing (1) and is used to detect the pressure; A support rod (29) is fixed on the output shaft (12) and is used to provide support for other parts in the strengthening assembly. A support shaft (28) is inserted into the support rod (29). A baffle (27) is fixed on the support shaft (28). A positioning plate (271) is fixed on the side wall of the baffle (27). A base (22) is fixed on the output shaft (12) and is used to provide support for other parts in the strengthening component. A movable shaft (221) is movably mounted on the base (22). A pneumatic telescopic rod (23) is fixed to one end of the movable shaft (221). A rotating sleeve (24) is fixed to one end of the pneumatic telescopic rod (23). A rotating ring (25) is inserted into the rotating sleeve (24). A sliding rod (26) is inserted into the rotating ring (25). One end of the sliding rod (26) is slidably inserted into a sliding groove provided on the inner outer wall of the baffle (27). The output shaft (12) is hollow, one end of the pneumatic telescopic rod (23) is connected to the output shaft (12) via a stainless steel bellows, an air pump (2) is fixed to the side wall of the output shaft (12) via a mounting seat, an air pipe (21) is fixed to one end of the air pump (2), one end of the air pipe (21) is fixed to the output shaft (12), and the output shaft (12) and the air pump (2) are connected via the air pipe (21); A fixing rod (3) is fixed on the side wall of the rotating sleeve (24), a fixing shaft (31) is movably mounted in the fixing rod (3) via a bearing, a push plate (32) is fixed at one end of the fixing shaft (31), a convex rod (33) is fixed on one side outer surface of the push plate (32), a spring (34) is fixed on the side wall of the push plate (32), a support plate (35) is fixed at the other end of the spring (34), and one end of the support plate (35) is fixed to the side wall of the fixing rod (3); A limiting rod (36) is fixed on the side wall of the fixing rod (3), one end of the limiting rod (36) is slidably abutted against a reinforcing plate (38), a positioning shaft (37) is fixed on the side wall of the reinforcing plate (38), one end of the positioning shaft (37) is movably mounted on the side wall of the fixing rod (3) via a bearing, and a sliding plate (39) is slidably mounted in the reinforcing plate (38).
2. A PEEK composite material continuous extrusion molding device according to claim 1, characterized in that: A slide bar (4) included in the adjustment assembly is fixed on the side wall of the baffle (27), a power rod (42) is slidably inserted into the extruder housing (1), a slide plate (41) is fixed to one end of the power rod (42), one end of the slide plate (41) is inclined, a magnet (43) is fixedly inserted into the power rod (42), a magnetic block (44) is fixed to the top of the extruder housing (1), and the magnetic block (44) and the magnet (43) are magnetically attracted to each other.
3. A PEEK composite material continuous extrusion molding device according to claim 2, characterized in that: An upper extrusion rod (45) is fixed to the top of the power rod (42), one end of the upper extrusion rod (45) is tilted, one end of the upper extrusion rod (45) is slidably abutted against a lower extrusion rod (46), one end of the lower extrusion rod (46) is tilted and slidably matched with the tilted end of the upper extrusion rod (45), one end of the lower extrusion rod (46) is fixed to an adjustment plate (47), one end of the adjustment plate (47) is slidably inserted into the feed hopper (18), and a second spring (48) is fixed in the adjustment plate (47).
4. A PEEK composite material continuous extrusion molding device according to claim 3, characterized in that: A guide rod (49) is fixed to the other end of the second spring (48), one end of the guide rod (49) is fixed to the top of the extruder housing (1), and one end of the guide rod (49) is slidably inserted into the adjustment plate (47).
5. A PEEK composite material continuous extrusion molding device according to claim 1, characterized in that: The power assembly comprises a power motor (11) fixed to one end of an output shaft (12), a spiral blade (13) fixed to the side wall of the output shaft (12), a driving wheel (15) fixedly penetrated through the output shaft (12), the driving wheel (15) is connected to a driven wheel (17) via a belt (16), a driven shaft (14) fixedly penetrated through the driven wheel (17), and one end of the driven shaft (14) is penetrated through the extruder housing (1).
6. A method for adjusting a PEEK composite material continuous extrusion molding device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, turning on the power element through the control console, and adding PEEK composite material raw material particles from the feed hopper (18) into the extruder housing (1); S2, measuring the pressure at the reinforcing component in the extruder housing (1) by means of a pressure sensor (5) and transmitting the measured data to a control console; S3, starting the strengthening component according to the measurement data of the pressure sensor (5) in step S2; S4, according to the operating state of the strengthening component in step S3, the adaptive operation adjustment component adjusts the amount of raw material added; S5. Turn off the strengthening component according to the measurement data of the pressure sensor (5) in step S2.
7. The method for adjusting a PEEK composite material continuous extrusion molding device according to claim 6, characterized in that: The flip angle of the baffle (27) in the strengthening component is between 0 and 30 degrees.
Citation Information
Patent Citations
twin screw extruder
CN104309095B
Extrusion device for double-layer plastic pipe
CN112454848A
Melt fluid static mixer and carbon dioxide foaming extruded sheet production system
CN114834020A