PA66 composite material extruder

Abstract

The invention belongs to the technical field of PA66, and discloses a PA66 composite material extruder which comprises a base, an extrusion barrel fixed to the top of the base, a rotating sleeve rotationally installed in the extrusion barrel and a spiral blade fixedly connected to the outer side face of the rotating sleeve in a sleeving mode, and an installation cavity is formed in the outer surface of the rotating sleeve. Cleaning liquid is extruded under the action of the spiral blades, then the inner wall cleaning effect after the extrusion barrel is used is greatly improved, the inner wall of the extrusion barrel is directly flushed efficiently and rapidly in an inner wall rotating direct spraying mode, and the liquid is automatically extruded and discharged in cooperation with the rotating action of the spiral blades; and gas is introduced in cooperation with the composite input assembly after cleaning, the inner wall of the extrusion barrel is purged again through the gas, purging and drying are directly and rapidly conducted after complete cleaning, the actual cleaning efficiency is high, the effect is good, the drying speed after cleaning is high, the cleaning and maintaining effect of the extruder is good, residual materials are prevented from being solidified and blocking the extruder, and the using effect is good.

Description

Technical Field

[0001] The invention belongs to the technical field of PA66 preparation, and in particular relates to a PA66 composite material extruder. Background Art

[0002] PA66, or nylon 66 (Polyamide 66), is a thermoplastic resin formed by the polycondensation of adipic acid and hexamethylenediamine, and is a type of polyamide (PA). It has extremely wide applications in industry due to its high strength, corrosion resistance, good wear resistance, self-lubrication, flame retardancy, non-toxicity and environmental protection. PA66 composite extruder is a device used to extrude PA66 (polyamide 66) composite materials. This type of equipment plays an important role in the plastic processing industry and can efficiently and stably produce various PA66 composite products.

[0003] In the prior art, the PA66 composite material extruder, during use, after a long period of extrusion molding, some materials remain inside, which gradually clog the inside of the extruder after cooling and solidification, affecting the stable and smooth extrusion process, and the residual materials are subsequently mixed with the newly introduced materials, affecting the molding quality. However, during maintenance and cleaning, it is difficult to achieve the cleaning of the inside of the extruder, and it is usually necessary to disassemble and clean it regularly. However, the disassembly process is complicated and the internal cleaning is difficult. The method of introducing cleaning water into the feeding end can only achieve natural cleaning of the flowing water due to the obstruction of the spiral blades, and it is difficult to effectively clean the residues. The comprehensive cleaning effect is poor, the difficulty is great, and the use effect is not good. Summary of the invention

[0004] The object of the present invention is to provide a PA66 composite material extruder to solve the problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a PA66 composite material extruder, comprising a base, an extrusion barrel fixed on the top of the base, a rotating sleeve rotatably installed inside the extrusion barrel and a spiral blade fixedly sleeved on the outer surface of the rotating sleeve, the outer surface of the rotating sleeve is provided with an installation cavity, the interior of the installation cavity is fixedly provided with an opening and closing component, the interior of the rotating sleeve is rotatably installed with a rotation control part, the inner end of the opening and closing component is fixedly connected to the rotation control part, the rotation control part rotates and drives the opening and closing component to compress and open the installation cavity, one end of the extrusion barrel is rotatably sleeved with a connecting part, the inner end of the connecting part is fixedly connected to the rotating sleeve, one side of the extrusion barrel is provided with a composite input component, the composite input component respectively inputs the coolant and the airflow into the rotating sleeve through the connecting part, the right end of the rotating control part passes through the extrusion barrel and is fixedly provided with a spraying component, and the outer surface of the right end of the rotating sleeve is threadedly sleeved with a positioning bolt;

[0006] The rotation control part comprises a support ring fixedly sleeved inside the rotating sleeve, a rotating shaft rotatably sleeved in the support ring and a distribution ring fixedly sleeved on the rotating shaft. The sides of the support ring and the distribution ring are both provided with connecting holes.

[0007] Preferably, a feed pipe is provided at the top of the extrusion barrel, an extrusion port is opened at the right end of the extrusion barrel, a power unit is provided at one side of the left end of the extrusion barrel, and an output shaft of the power unit is fixedly connected to the connecting part.

[0008] Preferably, the connecting part includes a connecting shaft and a connecting groove, the connecting shaft is rotatably mounted on the left end of the extrusion barrel, the connecting groove is opened inside the connecting shaft, the left end of the extrusion barrel is provided with a sealing sleeve sleeved on the outside of the connecting shaft, and the connecting shaft is connected to the rotating sleeve.

[0009] Preferably, the interior of the rotating sleeve is provided with side grooves and a bottom hole, the inner and outer ends of the bottom hole are respectively connected to the inner cavity of the rotating sleeve and the installation cavity, and the side grooves are located on both sides of the installation cavity and are connected to the installation cavity.

[0010] Preferably, the opening and closing assembly includes a sealing seat, a rigid rope, a spring and a limit column, the sealing seat is movably sleeved in the installation cavity, the upper end of the rigid rope is fixed to the bottom of the sealing seat and the lower end is fixedly connected to the rotating shaft, the spring is fixedly connected in the installation cavity and fixedly connected to the sealing seat, and the limit column is fixed to the bottom of the sealing seat.

[0011] Preferably, the composite input assembly includes a distribution cylinder, a reversing valve, a liquid pump and an air pump. The distribution cylinder is fixedly connected to the left end of the extrusion cylinder and is sleeved on the outside of the connecting portion. The reversing valve is fixedly installed at the inlet end at the top of the distribution cylinder. The output ends of the liquid pump and the air pump are respectively fixedly connected to the two connecting ends of the reversing valve.

[0012] Preferably, the spray assembly includes a mounting cover and spray holes, the mounting cover is fixedly connected to the right end of the rotating shaft, and the spray holes are distributed around the outer surface of the mounting cover.

[0013] Preferably, a middle hole and an annular groove are respectively opened at the right end of the extrusion cylinder, the inner surface of the annular groove is rotatably sleeved with the mounting cover, and the middle hole is located on the rotation path of the connecting hole on the side of the distribution ring.

[0014] Preferably, a heat-insulating sleeve is fixedly sleeved in the inner wall of the rotating sleeve, and the heat-insulating sleeve is distributed on the left and right sides of the support ring. The length of the connection between the heat-insulating sleeve and the support ring is smaller than the length of the inner cavity of the rotating sleeve, and the inner end of the positioning bolt passes through the rotating sleeve and extends to the interior of the rotating sleeve.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. The present invention utilizes a rotation control part to connect with a rigid rope in an opening and closing component, so that when the rotation control part rotates, the opening and closing component is pulled to compress and open the installation cavity, and at the same time, the composite input component is cooperated to pass the cleaning liquid into the interior of the rotating sleeve through the connecting part. When the rotating sleeve is started to rotate, the input cleaning liquid is sprayed out from the inside of the extruder barrel and directly sprayed and washed along the inner wall of the extruder barrel. The rotating sleeve and the spiral blades in rotation are cooperated to surround and wash the inner wall of the extruder barrel, and the cleaning liquid is squeezed out under the action of the spiral blades, thereby greatly improving the cleaning effect of the inner wall of the extruder barrel after use. The inner wall rotation direct spraying method is adopted to directly and efficiently and quickly wash the inner wall of the extruder barrel, and the liquid is automatically extruded and discharged in cooperation with the rotation of the spiral blades. After cleaning, the composite input component is cooperated to introduce gas, and the gas is used to blow the inner wall of the extruder barrel again. After complete cleaning, the direct and rapid blowing and drying, the actual cleaning efficiency is high and the effect is good, the drying speed after cleaning is fast, the cleaning and maintenance effect of the extruder is good, and the residual material solidification and clogging of the extruder are avoided, and the use effect is good.

[0017] 2. The present invention reuses the liquid input of the composite input component and the closed control of the rotation control part to maintain the sealing of the installation cavity and the connection with the outer end spray component in the initial state of the rotation control part. In the extrusion molding stage, the input of the cleaning liquid is maintained, and during the rotational extrusion, the cleaning liquid is guided to flow into the spray component, and the spray hole in the spray component is coordinated with the rotation of the rotating sleeve during extrusion molding. The extruded molding material is rotationally sprayed with cleaning water. Without adding additional cooling equipment, the spray cooling of the extruded product is further achieved, the solidification molding speed of the extruded material is increased, and the use effect is good.

[0018] 3. The present invention reuses the gas-liquid input of the composite input component and utilizes the opening and closing control of the rotating control part, in conjunction with the heat-insulating sleeve added in the rotating sleeve, so that the heat-insulating sleeve located in the rotating sleeve performs heat-insulating treatment on the heated extrusion section, and does not perform heat-insulating treatment on the extrusion cooling area, so that the supplied cleaning water or airflow fully contacts and exchanges heat with the inner wall of the rotating sleeve only after passing over the heat-insulating sleeve, thereby further assisting in cooling the cooling area near the outlet position, and assisting in strengthening cooling of the extrusion cooling area from the inside of the extruder by introducing cleaning liquid or flowing airflow, thereby comprehensively improving the PA66 extrusion molding effect and avoiding the poor curing effect of the extruded product caused by insufficient cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a cross-sectional schematic diagram of the present invention;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0022] Figure 4 It is a schematic diagram of the installation of the rotating sleeve and the spiral blade of the present invention;

[0023] Figure 5 It is an exploded schematic diagram of the ejection assembly and the rotating sleeve of the present invention;

[0024] Figure 6 It is a cross-sectional schematic diagram of the rotating sleeve of the present invention;

[0025] Figure 7 for Figure 6 A schematic diagram of the structure enlargement at the center A;

[0026] Figure 8 It is an exploded schematic diagram of the rotation control assembly of the present invention;

[0027] Fig. 9 is a cross-sectional schematic diagram of the connecting portion of the present invention;

[0028] Fig.10 It is a schematic diagram of the opening and closing assembly of the present invention;

[0029] Fig.11 Schematic diagram of the composite input component of the present invention.

[0030] In the figure: 1. base; 2. extruder barrel; 3. rotating sleeve; 4. spiral blade; 5. power unit; 6. connecting unit; 61. connecting shaft; 62. connecting groove; 7. composite input assembly; 71. distribution barrel; 72. reversing valve; 73. liquid pump; 74. air pump; 8. rotation control unit; 81. rotating shaft; 82. support ring; 83. distribution ring; 9. opening and closing assembly; 91. sealing seat; 92. rigid rope; 93. spring; 94. limiting column; 10. ejection assembly; 101. mounting cover; 102. ejection hole; 11. positioning bolt; 12. mounting cavity; 13. side groove; 14. bottom hole; 15. insulation sleeve; 16. ring groove; 17. middle hole. DETAILED DESCRIPTION

[0031] 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.

[0032] like Figures 1 to 11As shown, an embodiment of the present invention provides a PA66 composite material extruder, comprising a base 1, an extrusion barrel 2 fixed on the top of the base 1, a rotating sleeve 3 rotatably installed inside the extrusion barrel 2, and a spiral blade 4 fixedly sleeved on the outer surface of the rotating sleeve 3, an installation cavity 12 is opened on the outer surface of the rotating sleeve 3, an opening and closing component 9 is fixedly provided inside the installation cavity 12, a rotation control part 8 is rotatably installed inside the rotating sleeve 3, the inner end of the opening and closing component 9 is fixedly connected to the rotation control part 8, the rotation control part 8 rotates and drives the opening and closing component 9 to compress and open the installation cavity 12, one end of the extrusion barrel 2 is rotatably sleeved with a connecting part 6, the inner end of the connecting part 6 is fixedly connected to the rotating sleeve 3, a composite input component 7 is provided on one side of the extrusion barrel 2, and the composite input component 7 respectively inputs the coolant and the airflow into the rotating sleeve 3 through the connecting part 6, the right end of the rotating control part 8 passes through the extrusion barrel 2 and is fixedly provided with a spraying component 10, and the outer surface of the right end of the rotating sleeve 3 is threadedly sleeved with a positioning bolt 11;

[0033] The rotation control part 8 includes a support ring 82 fixedly sleeved inside the rotating sleeve 3, a rotating shaft 81 rotatably sleeved in the support ring 82, and a distribution ring 83 fixedly sleeved on the rotating shaft 81. The sides of the support ring 82 and the distribution ring 83 are both provided with connecting holes.

[0034] Embodiment 1: When the extrusion process is completed and maintenance and cleaning are performed, the ejection assembly 10 on the outer side of the right end of the rotating sleeve 3 is rotated to drive the rotating sleeve 3 to rotate, and the rotating sleeve 3 pulls the rigid rope 92 to follow the movement when rotating, and pulls the sealing seat 91 in the opening and closing assembly 9, so that the sealing seat 91 compresses the spring 93 and moves downward along the installation cavity 12, so that the limit column 94 abuts against the bottom surface of the installation cavity 12. At this time, the sealing seat 91 is located in the middle of the side groove 13. At the same time, when the rotating shaft 81 rotates, it drives the distribution ring 83 to rotate, and the connecting hole on the distribution ring 83 is staggered with the middle hole 17 at the right end of the extruder barrel 2, and the middle hole 17 is sealed. The positioning bolt 11 is rotated to clamp and fix the rotating shaft 81 after rotation, and the power unit 5 and the composite input assembly 7 are started to start the liquid pump 73. , and the reversing valve 72 is connected to the liquid pump 73 separately, the cleaning liquid is passed into the distribution cylinder 71, and enters the interior of the rotating sleeve 3 through the connecting groove 62, and the input cleaning liquid is sprayed into the extrusion cylinder 2 along the bottom hole 14, the side groove 13 and the opened installation cavity 12, the power unit 5 is started and the rotating sleeve 3 drives the spiral blade 4 to rotate, the water flow rotates to wash the inner wall of the extrusion cylinder 2, and is extruded along the extrusion hole at the right end of the extrusion cylinder 2 as the spiral blade 4 rotates, and is completely cleaned; after cleaning, the liquid pump 73 is closed and the air pump 74 is started, so that the reversing valve 72 is connected to the air pump 74 separately, so that the air flow enters the rotating sleeve 3 and is sprayed into the extrusion cylinder 2, and the inner wall of the extrusion cylinder 2 is purged as it rotates, and the extrusion cylinder 2 is quickly purged and dried in cooperation with the rotating spiral blade 4.

[0035] First, by using the rotation control part 8 to connect with the rigid rope 92 in the opening and closing component 9, the rotation control part 8 pulls the opening and closing component 9 to compress and open the installation cavity 12 when it rotates, and cooperates with the composite input component 7 to pass the cleaning liquid into the interior of the rotating sleeve 3 through the connecting part 6. When the rotating sleeve 3 is started to rotate, the input cleaning liquid is sprayed out from the inside of the extrusion barrel 2 and directly sprayed and rinsed along the inner wall of the extrusion barrel 2. The rotating sleeve 3 and the spiral blade 4 in rotation are cooperated to surround and rinse the inner wall of the extrusion barrel 2, and the cleaning liquid is squeezed out under the action of the spiral blade 4, thereby greatly improving the cleaning effect of the inner wall of the extrusion barrel 2 after use. The inner wall rotation direct spraying method is adopted to directly and efficiently and quickly rinse the inner wall of the extrusion barrel 2, and the liquid is automatically extruded and discharged in cooperation with the rotation of the spiral blade 4. After cleaning, the composite input component 7 is cooperated to introduce gas, and the inner wall of the extrusion barrel 2 is purged again by gas. The direct and rapid purging and drying after complete cleaning has high actual cleaning efficiency and good effect, fast drying speed after cleaning, good cleaning and maintenance effect of the extruder, and avoids residual material solidification and clogging of the extruder, and the use effect is good.

[0036] Among them, a feed pipe is provided at the top of the extrusion cylinder 2, an extrusion port is opened at the right end of the extrusion cylinder 2, and a power unit 5 is provided on one side of the left end of the extrusion cylinder 2. The output shaft of the power unit 5 is fixedly connected to the connecting part 6.

[0037] By utilizing the power unit 5 to provide rotational power, extrusion molding is completed.

[0038] Among them, the connecting part 6 includes a connecting shaft 61 and a connecting groove 62, the connecting shaft 61 is rotatably installed at the left end of the extrusion barrel 2, the connecting groove 62 is opened inside the connecting shaft 61, and the left end of the extrusion barrel 2 is provided with a sealing sleeve sleeved on the outside of the connecting shaft 61, and the connecting shaft 61 is connected to the rotating sleeve 3. The composite input component 7 includes a distribution barrel 71, a reversing valve 72, a liquid pump 73 and an air pump 74. The distribution barrel 71 is fixedly connected to the left end of the extrusion barrel 2 and sleeved on the outside of the connecting part 6, the reversing valve 72 is fixedly installed at the inlet end of the top of the distribution barrel 71, and the output ends of the liquid pump 73 and the air pump 74 are respectively fixedly connected to the two connecting ends of the reversing valve 72.

[0039] The connecting portion 6 is always connected with the distribution cylinder 71 in the outer composite input component 7 through the setting of the connecting groove 62, so as to input gas or liquid into the interior of the rotating sleeve 3. The composite input component 7 realizes the input of gas and liquid respectively through the switching control of the reversing valve 72, and realizes the effects of subsequent cleaning, drying, spray cooling and internal auxiliary enhanced cooling.

[0040] Among them, the interior of the rotating sleeve 3 is respectively provided with a side groove 13 and a bottom hole 14, the inner and outer ends of the bottom hole 14 are respectively connected with the inner cavity of the rotating sleeve 3 and the installation cavity 12, the side groove 13 is located on both sides of the installation cavity 12 and is connected with the installation cavity 12, the opening and closing component 9 includes a sealing seat 91, a rigid rope 92, a spring 93 and a limiting column 94, the sealing seat 91 is movably sleeved in the installation cavity 12, the upper end of the rigid rope 92 is fixed to the bottom of the sealing seat 91 and the lower end is fixedly connected to the rotating shaft 81, the spring 93 is fixedly connected in the installation cavity 12 and fixedly connected to the sealing seat 91, and the limiting column 94 is fixed to the bottom of the sealing seat 91.

[0041] By changing the position of the sealing seat 91 in the opening and closing component 9, sealing is achieved when the sealing seat 91 blocks the top end of the installation cavity 12 and the top end of the side groove 13. When the sealing seat 91 moves down and is located in the middle of the side groove 13, the outer end of the installation cavity 12 is connected to the bottom hole 14 through the side groove 13, guiding the water flow and air flow to spray out. The spring 93 is convenient for automatic reset and is fixed with the positioning bolt 11. It automatically resets to maintain the seal when the positioning bolt 11 is released. The limiting column 94 realizes limiting to prevent the sealing seat 91 from completely sealing the connection between the side groove 13 and the bottom hole 14.

[0042] Among them, the spray assembly 10 includes a mounting cover 101 and a spray hole 102. The mounting cover 101 is fixedly connected to the right end of the rotating shaft 81. The spray holes 102 are distributed around the outer surface of the mounting cover 101. The right end of the extrusion cylinder 2 is respectively provided with a middle hole 17 and an annular groove 16. The inner surface of the annular groove 16 is rotatably connected to the mounting cover 101. The middle hole 17 is located on the rotation path of the connecting hole on the side of the distribution ring 83.

[0043] The spray assembly 10 rotates with the spray hole 102 to achieve surrounding spraying. During extrusion molding, the water flow is fed to spray and cool the extruded PA66 product. The annular groove 16 maintains the stability of the mounting cover 101.

[0044] Among them, a heat-insulating sleeve 15 is fixedly sleeved in the inner wall of the rotating sleeve 3, and the heat-insulating sleeve 15 is distributed on the left and right sides of the support ring 82. The length of the connection between the heat-insulating sleeve 15 and the support ring 82 is smaller than the length of the inner cavity of the rotating sleeve 3. The inner end of the positioning bolt 11 passes through the rotating sleeve 3 and extends to the interior of the rotating sleeve 3.

[0045] By arranging and controlling the length of the insulation sleeve 15, the heat insulation treatment of the heating extrusion area of ​​the rotating sleeve 3 is achieved to avoid the absorption of heat by water flow and air flow, and the heat absorption capacity of air flow and water flow is fully improved in the cooling area not covered by the insulation sleeve 15, so as to strengthen the cooling treatment of the cooling area at the extrusion end.

[0046] Embodiment 2: When the extrusion is running, the positioning bolt 11 is kept to cancel the clamping and fixing of the rotating shaft 81, and the opening and closing component 9 seals the installation cavity 12. At this time, the connecting hole on the distribution ring 83 is aligned and connected with the middle hole 17, the composite input component 7 is started, and the reversing valve 72 is connected with the liquid pump 73 to maintain the input of the cleaning water. As the cleaning water enters the interior of the rotating sleeve 3, the water flows through the connecting hole on the support ring 82, the connecting hole on the distribution ring 83 and the middle hole 17. The water flows into the spray assembly 10, and as the spray assembly 10 rotates with the rotating sleeve 3, the water flows around and rotates along the spray hole 102 and sprays out, and the extruded PA66 is cooled. The cleaning water input into the rotating sleeve 3 is isolated from the rotating sleeve 3 at the insulation sleeve 15, and contacts with the inner wall of the rotating sleeve 3 near the extrusion hole, quickly absorbs heat, and the PA66 to be extruded is quickly cooled and extruded.

[0047] First, by reusing the liquid input of the composite input component 7 and the closed control of the rotation control unit 8, the installation cavity 12 is maintained sealed in the initial state of the rotation control unit 8 and at the same time maintained in communication with the outer end spray component 10. In the extrusion molding stage, the input of the cleaning liquid is maintained, and during the rotational extrusion, the cleaning liquid is guided to flow into the spray component 10, and the spray hole 102 in the spray component 10 is coordinated, so that during the extrusion molding, the rotation of the rotating sleeve 3 is coordinated to perform rotational spraying of the cleaning water on the extruded molding material. Without adding additional cooling equipment, the spray cooling of the extruded product is further achieved, the solidification molding speed of the extruded molding material is increased, and the use effect is good.

[0048] In addition, by reusing the gas-liquid input of the composite input component 7 and utilizing the opening and closing control of the rotation control unit 8, in conjunction with the heat-insulating sleeve 15 added to the rotating sleeve 3, the heat-insulating sleeve 15 located in the rotating sleeve 3 performs heat-insulating treatment on the heated extrusion section, and does not perform heat-insulating treatment on the extrusion cooling area, so that the supplied cleaning water or airflow is fully in contact with the inner wall of the rotating sleeve 3 for heat exchange only after passing over the heat-insulating sleeve 15, thereby further assisting in cooling the cooling area near the outlet position, and assisting in strengthening cooling of the extrusion cooling area from the inside of the extruder by introducing cleaning liquid or flowing airflow, thereby comprehensively improving the PA66 extrusion molding effect and avoiding the poor curing effect of the extruded product caused by insufficient cooling.

[0049] The working principle and use process of the present invention are as follows: when the extrusion process is completed and maintenance and cleaning are performed, the ejection assembly 10 on the outer side of the right end of the rotating sleeve 3 is rotated to drive the rotating sleeve 3 to rotate, and the rotating sleeve 3 pulls the rigid rope 92 to follow the movement when rotating, and pulls the sealing seat 91 in the opening and closing assembly 9, so that the sealing seat 91 compresses the spring 93 and moves downward along the installation cavity 12, so that the limiting column 94 abuts against the bottom surface of the installation cavity 12. At this time, the sealing seat 91 is located in the middle of the side groove 13, and at the same time, the rotating shaft 81 rotates to drive the distribution ring 83 to rotate, and the connecting hole on the distribution ring 83 is aligned with the middle hole 1 on the right end of the extruder 2. 7 is staggered, the middle hole 17 is sealed, the positioning bolt 11 is rotated, the rotating shaft 81 after rotation is clamped and fixed, the power unit 5 is started and the composite input assembly 7 is started, so that the liquid pump 73 is started, and the reversing valve 72 is connected with the liquid pump 73 alone, the cleaning liquid is passed into the distribution cylinder 71, and enters the interior of the rotating sleeve 3 through the connecting groove 62, and the input cleaning liquid is sprayed into the extrusion cylinder 2 along the bottom hole 14, the side groove 13 and the opened installation cavity 12, the power unit 5 is started and the rotating sleeve 3 drives the spiral blade 4 to rotate, the water flow rotates to wash the inner wall of the extrusion cylinder 2, and with the rotation of the spiral blade 4 The extruder 2 is extruded along the extrusion hole at the right end of the extruder barrel 2 for complete cleaning; after cleaning, the liquid pump 73 is closed and the air pump 74 is started, so that the reversing valve 72 is connected to the air pump 74 separately, so that the air flow flows into the rotating sleeve 3 and is sprayed into the extruder barrel 2, and the inner wall of the extruder barrel 2 is purged with the rotation, and the rotating spiral blade 4 is cooperated to quickly purge and dry the extruder barrel 2; when the extrusion is running, the positioning bolt 11 is kept to cancel the clamping and fixing of the rotating shaft 81, and the opening and closing component 9 seals the installation cavity 12. At this time, the connecting hole on the distribution ring 83 is aligned and connected with the middle hole 17, and the composite input component 7 is started, and the reversing valve 72 and The liquid pump 73 is connected to maintain the input of cleaning water. As the cleaning water enters the interior of the rotating sleeve 3, the water flows through the connecting holes on the support ring 82, the connecting holes on the distribution ring 83 and the middle hole 17 and is input into the spray assembly 10. As the spray assembly 10 rotates with the rotating sleeve 3, the water flows around and rotates along the spray hole 102 and sprays out, and the extruded PA66 is cooled. The cleaning water input into the rotating sleeve 3 is isolated from the rotating sleeve 3 at the insulating sleeve 15, and contacts the inner wall of the rotating sleeve 3 near the extrusion hole, quickly absorbs heat, and the PA66 to be extruded is quickly cooled and extruded.

[0050] 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 PA66 composite material extruder, comprising a base (1), an extrusion barrel (2) fixed on the top of the base (1), a rotating sleeve (3) rotatably mounted inside the extrusion barrel (2), and a spiral blade (4) fixedly sleeved on the outer surface of the rotating sleeve (3), characterized in that: The outer surface of the rotating sleeve (3) is provided with an installation cavity (12), an opening and closing component (9) is fixedly provided inside the installation cavity (12), a rotation control part (8) is rotatably installed inside the rotating sleeve (3), the inner end of the opening and closing component (9) is fixedly connected to the rotation control part (8), the rotation control part (8) rotates and drives the opening and closing component (9) to compress and open the installation cavity (12), one end of the extrusion barrel (2) is rotatably sleeved with a connecting part (6), the inner end of the connecting part (6) is fixedly connected to the rotating sleeve (3), one side of the extrusion barrel (2) is provided with a composite input component (7), the composite input component (7) respectively inputs the cooling liquid and the airflow into the rotating sleeve (3) through the connecting part (6), the right end of the rotation control part (8) passes through the extrusion barrel (2) and is fixedly provided with a spraying component (10), and the outer surface of the right end of the rotating sleeve (3) is threadedly sleeved with a positioning bolt (11); The rotation control part (8) comprises a support ring (82) fixedly sleeved inside the rotation sleeve (3), a rotation shaft (81) rotatably sleeved in the support ring (82), and a distribution ring (83) fixedly sleeved on the rotation shaft (81); the sides of the support ring (82) and the distribution ring (83) are both provided with communication holes.

2. A PA66 composite material extruder according to claim 1, characterized in that: A feed pipe is provided at the top of the extrusion cylinder (2), an extrusion port is provided at the right end of the extrusion cylinder (2), a power unit (5) is provided on one side of the left end of the extrusion cylinder (2), and an output shaft of the power unit (5) is fixedly connected to the connecting unit (6).

3. A PA66 composite material extruder according to claim 1, characterized in that: The connecting portion (6) comprises a connecting shaft (61) and a connecting groove (62); the connecting shaft (61) is rotatably mounted on the left end of the extrusion cylinder (2); the connecting groove (62) is arranged inside the connecting shaft (61); the left end of the extrusion cylinder (2) is provided with a sealing sleeve sleeved on the outside of the connecting shaft (61); and the connecting shaft (61) is connected to the rotating sleeve (3).

4. A PA66 composite material extruder according to claim 1, characterized in that: The rotating sleeve (3) is provided with side grooves (13) and a bottom hole (14) respectively. The inner and outer ends of the bottom hole (14) are respectively connected to the inner cavity of the rotating sleeve (3) and the installation cavity (12). The side grooves (13) are located on both sides of the installation cavity (12) and are connected to the installation cavity (12).

5. A PA66 composite material extruder according to claim 1, characterized in that: The opening and closing assembly (9) comprises a sealing seat (91), a rigid rope (92), a spring (93) and a limiting column (94); the sealing seat (91) is movably sleeved in the installation cavity (12); the upper end of the rigid rope (92) is fixed to the bottom of the sealing seat (91) and the lower end is fixedly connected to the rotating shaft (81); the spring (93) is fixedly connected in the installation cavity (12) and fixedly connected to the sealing seat (91); and the limiting column (94) is fixed to the bottom of the sealing seat (91).

6. A PA66 composite material extruder according to claim 1, characterized in that: The composite input assembly (7) comprises a distribution cylinder (71), a reversing valve (72), a liquid pump (73) and an air pump (74); the distribution cylinder (71) is fixedly connected to the left end of the extrusion cylinder (2) and sleeved on the outside of the connecting portion (6); the reversing valve (72) is fixedly installed at the inlet end at the top of the distribution cylinder (71); the output ends of the liquid pump (73) and the air pump (74) are respectively fixedly connected to the two connecting ends of the reversing valve (72).

7. A PA66 composite material extruder according to claim 1, characterized in that: The spray assembly (10) comprises a mounting cover (101) and a spray hole (102); the mounting cover (101) is fixedly connected to the right end of the rotating shaft (81); and the spray hole (102) is distributed around the outer surface of the mounting cover (101).

8. The PA66 composite material extruder according to claim 1, characterized in that: The right end of the extrusion cylinder (2) is provided with a middle hole (17) and an annular groove (16), the inner surface of the annular groove (16) is rotatably sleeved with the mounting cover (101), and the middle hole (17) is located on the rotation path of the connecting hole on the side of the distribution ring (83).

9. A PA66 composite material extruder according to claim 1, characterized in that: A heat insulating sleeve (15) is fixedly sleeved in the inner wall of the rotating sleeve (3), and the heat insulating sleeve (15) is distributed on the left and right sides of the support ring (82). The length of the heat insulating sleeve (15) connected with the support ring (82) is smaller than the length of the inner cavity of the rotating sleeve (3), and the inner end of the positioning bolt (11) passes through the rotating sleeve (3) and extends to the interior of the rotating sleeve (3).

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