阅读说明：本技术 耐高温高遮光pbt基复合材料的制备方法及生产装置 (Preparation method and production device of high-temperature-resistant and high-shading PBT (polybutylene terephthalate) -based composite material ) 是由 王君 吴德峰 于 2021-07-31 设计创作，主要内容包括：本发明公开耐高温高遮光PBT基复合材料的制备方法及生产装置。涉及PBT材料生产技术领域,包括搅拌装置和挤出装置,所述挤出装置设置在搅拌装置下侧,所述搅拌装置底部设置有出料口,所述出料口处设置有封口装置,搅拌装置及其内部结构,可以有效的解决搅拌不充分、不均匀的问题,封口装置可以自动进行封口以及放料,有效提高了生产的自动化程度,基础装置内设置的清洁杆,可以在挤出完成后及时进行有效地清洁。(The invention discloses a preparation method and a production device of a high-temperature-resistant and high-shading PBT-based composite material. Relate to PBT material production technical field, including agitating unit and extrusion device, extrusion device sets up at the agitating unit downside, the agitating unit bottom is provided with the discharge gate, discharge gate department is provided with closing device, agitating unit and inner structure, can the insufficient, inhomogeneous problem of effectual solution stirring, closing device can seal and the blowing automatically, has effectively improved the degree of automation of production, and the clean pole that sets up in the basic device can in time clean effectively after extruding the completion.)

1. High temperature resistant high shading PBT base combined material's apparatus for producing, including agitating unit and extrusion device, extrusion device sets up at the agitating unit downside, the agitating unit bottom is provided with the discharge gate, discharge gate department is provided with closing device, its characterized in that:

the stirring device comprises a barrel, a stirring power source is arranged on the barrel and connected with a stirring shaft through a first transmission belt, the stirring shaft is of a hollow structure, a stirring fixed shaft is arranged in the stirring shaft and fixedly arranged on the barrel, a stirring rod is arranged on the stirring shaft in a penetrating and rotating mode, an auxiliary stirring rod is arranged on the stirring rod, a stirring fixed gear is arranged on the stirring fixed shaft, a stirring rotating gear is arranged at one end, located in the stirring shaft, of the stirring rod and matched with the stirring fixed gear, the stirring rod, the auxiliary stirring rod, the stirring rotating gear and the stirring fixed gear form a group of stirring components, a plurality of groups of stirring components are arranged on the stirring components, and the stirring components are uniformly distributed along the axial direction of the fixed shaft;

the stirring device further comprises a stirring gear ring arranged on the barrel, the stirring gear ring is matched with an edge stirring gear, the edge stirring gear is connected with an edge stirring shaft, the edge stirring shaft is arranged on a connecting plate, the connecting plate is arranged on a stirring shaft, and the edge stirring shaft is attached to the inner wall of the barrel.

2. The apparatus for producing high temperature resistant high shading PBT base composite material according to claim 1, characterized in that: the stirring assemblies are arranged on the same plane and are uniformly distributed in a staggered manner from left to right.

3. The apparatus for producing high temperature resistant high shading PBT base composite material according to claim 1, characterized in that: the sealing device comprises an upper right-angle groove frame and a lower right-angle groove frame which are fixedly arranged at the bottom of the stirring device, a sealing block is arranged in the longitudinal edge of the upper right-angle groove frame and the lower right-angle groove frame in a sliding mode, the sealing block is connected with one end of a traction belt, the sealing block is arranged on a sliding table through a longitudinal reset spring, the sliding table is arranged in the transverse edge of the lower right-angle groove frame in a sliding mode, the sliding table is arranged on the stirring device through a transverse reset spring, a rotating roller is arranged on the sliding table, the other end of the traction belt bypasses the rotating roller to be arranged on a belt winding wheel, the belt winding wheel is connected with a sealing power source, and the sealing power source is arranged on the stirring device.

4. The apparatus for producing high temperature resistant high shading PBT base composite material according to claim 1, characterized in that: the extruding device comprises an extruding device outer barrel, a spiral feeding shaft is rotatably arranged in the extruding device outer barrel, and one end of the spiral feeding shaft is connected with an extruding power source through a transmission belt II.

5. The apparatus for producing high temperature resistant high shading PBT base composite material according to claim 4, characterized in that: an extrusion plate is movably arranged on the outer barrel of the extrusion device, and holes for extrusion are formed in the extrusion plate.

6. The apparatus for producing high temperature resistant high shading PBT base composite material according to claim 4, characterized in that: the cleaning device comprises a screw feeding shaft, a cleaning rod shaft, a fixing plate, a positioning plate and a cleaning rod, wherein the shaft of the screw feeding shaft is of a hollow structure, the cleaning rod shaft is arranged in the cleaning rod shaft, one end of the driving connecting rod is rotatably arranged on the cleaning rod shaft, the other end of the driving connecting rod is rotatably connected with the cleaning rod, the cleaning rod penetrates through the shaft of the screw feeding shaft and is slidably arranged in a spiral sheet of the screw feeding shaft, a fixing plate is arranged at one end of the screw feeding shaft, the cleaning rod shaft is provided with the positioning plate, the positioning plate and the fixing plate are located at the same end, the fixing plate and the positioning plate are both provided with positioning holes, and the fixing plate and the positioning plate are corresponding to each other and are connected through the positioning rods.

7. A preparation method for preparing a high-temperature-resistant high-light-shielding PBT-based composite material based on the production device of any one of claims 1 to 6 is characterized by comprising the following steps:

s1: adding a PBT polymer, a high-temperature antioxidant and a light stabilizer into a stirring device;

s2: starting a stirring device to uniformly mix the materials added in the step S1;

s3: and putting the mixed materials into an extrusion device for extrusion.

8. The method of claim 7, wherein: 0.1 to 0.15 percent of high-temperature antioxidant and 0.3 to 0.5 percent of light stabilizer.

Technical Field

The invention relates to the technical field of PBT material production, in particular to a preparation method and a production device of a high-temperature-resistant high-shading PBT-based composite material.

Background

PBT is polybutylene terephthalate, the character is that the PBT is milk white, translucent to opaque, most PBT resin is processed into a compound for use, the PBT resin is modified by various additives and is blended with other resin to obtain good comprehensive performances such as heat resistance, flame retardance, electric insulation and the like and good processing performance, and high-temperature resistance and high light shading degree can be obtained by adding a high-temperature antioxidant and a light stabilizer. In the prior art, the defect of uneven stirring is easily caused during production.

Patent application No. CN201510313904.4 discloses a PBT-based composite material for automobiles and a method for preparing the same, which can maintain good performance in high temperature and high humidity environments, but the material does not have high light-shielding degree, and meanwhile, no specific production device is designed in the application.

Disclosure of Invention

The invention aims to solve the technical problems that aiming at the defects in the prior art, the invention provides a device capable of automatically producing the high-temperature-resistant and high-shading PBT-based composite material, and provides a preparation method of the high-temperature-resistant and high-shading PBT-based composite material, so that the defects that stirring is uneven and insufficient easily occur when related materials are produced in the prior art are overcome.

The technical scheme adopted by the invention for solving the technical problems is as follows: the production device for the high-temperature-resistant and high-shading PBT-based composite material comprises a stirring device and an extrusion device, wherein the extrusion device is arranged at the lower side of the stirring device, a discharge hole is formed in the bottom of the stirring device, a sealing device is arranged at the discharge hole, the stirring device comprises a barrel, a stirring power source is arranged on the barrel and is connected with a stirring shaft through a first transmission belt, the stirring shaft is of a hollow structure, a stirring fixed shaft is arranged in the stirring shaft and is fixedly arranged on the barrel, a stirring rod is arranged on the stirring shaft in a penetrating and rotating mode, an auxiliary stirring rod is arranged on the stirring rod, a stirring fixed gear is arranged on the stirring fixed shaft, a stirring rotating gear is arranged at one end of the stirring rod, which is positioned in the stirring shaft, and is matched with the stirring fixed gear, the stirring rod, the auxiliary stirring rod, the stirring rotating gear and the stirring fixed gear are a group of stirring components, the stirring components are provided with a plurality of groups and are uniformly distributed along the axial direction of the stirring fixed shaft, the stirring device further comprises a stirring gear ring arranged on the barrel, the stirring gear ring is matched with the edge stirring gear, the edge stirring gear is connected with the edge stirring shaft, the edge stirring shaft is arranged on the connecting plate, the connecting plate is arranged on the stirring shaft, and the edge stirring shaft is attached to the inner wall of the barrel.

Furthermore, a plurality of stirring subassemblies set up on the coplanar, and control even staggered distribution.

Further, closing device is including fixed last right angle tank bracket and the lower right angle tank bracket that sets up in the agitating unit bottom, it is provided with the seal piece to go up the vertical limit internal simultaneous slip of right angle tank bracket and lower right angle tank bracket, the seal piece is connected with traction belt one end, the seal piece sets up on the sliding stand through vertical reset spring, the sliding stand slides and sets up in the horizontal limit of right angle tank bracket down, the sliding stand sets up on agitating unit through horizontal reset spring simultaneously, be provided with the live-rollers on the sliding stand, the traction belt other end is walked around the live-rollers and is set up on the belt winding wheel, the belt winding wheel is connected with the power supply of sealing, the power supply setting of sealing is on agitating unit.

Furthermore, the extrusion device comprises an extrusion device outer barrel, a spiral feeding shaft is rotatably arranged in the extrusion device outer barrel, and one end of the spiral feeding shaft is connected with an extrusion power source through a second transmission belt.

Furthermore, an extrusion plate is movably arranged on the outer barrel of the extrusion device, and a hole for extrusion is formed in the extrusion plate.

Furthermore, the shaft of the spiral feeding shaft is of a hollow structure, a cleaning rod shaft is arranged in the shaft, one end of a transmission connecting rod is rotatably arranged on the cleaning rod shaft, the other end of the transmission connecting rod is rotatably connected with the cleaning rod, the cleaning rod penetrates through the shaft of the spiral feeding shaft and is slidably arranged in a spiral sheet of the spiral feeding shaft, a fixing plate is arranged at one end of the spiral feeding shaft, a positioning plate is arranged on the cleaning rod shaft, the positioning plate and the fixing plate are located at the same end, positioning holes are formed in the fixing plate and the positioning plate respectively, and the fixing plate corresponds to the positioning holes in the positioning plate and is connected with the positioning plates through the positioning rods.

The invention also discloses a preparation method of the high-temperature-resistant high-shading PBT-based composite material, which comprises the following steps:

s1: adding PBT polymer, high-temperature antioxidant and light stabilizer into a stirring device, wherein the high-temperature antioxidant accounts for 0.1-0.15% and the light stabilizer accounts for 0.3-0.5%;

s2: starting a stirring device to uniformly mix the materials added in the S stirring device;

s3: and putting the mixed materials into an extrusion device for extrusion.

The working principle of the invention is as follows: when the stirring shaft is in operation, materials to be mixed are firstly put into the barrel, then the stirring power source is started, the stirring power source drives the stirring shaft to rotate through the first transmission belt, the stirring rod is arranged on the stirring shaft, the auxiliary stirring rod arranged on the stirring rod rotates along with the rotation of the stirring shaft to stir, the stirring rotating gear is arranged on the stirring rod and is matched with the stirring fixed gear arranged on the stirring fixed shaft, the stirring fixed shaft is fixedly arranged, the stirring rod rotates along with the rotation of the stirring shaft, the auxiliary stirring rod also rotates along with the rotation of the stirring rod to stir more fully, the stirring shaft drives the edge stirring shaft to rotate through the connecting plate while rotating, the edge stirring shaft rotates through the matching of the edge stirring gear and the stirring gear ring again, and the problems that the stirring near the inner wall of the barrel is insufficient, the wall is easy to hang in the prior art and the like are solved, after the stirring is finished, the sealing power source drives the belt winding wheel to rotate, the belt winding wheel pulls the sealing block to slide on the longitudinal edges of the upper right-angle groove frame and the lower right-angle groove frame through the traction belt, when the sealing block slides to the bottoms of the longitudinal edges of the upper right-angle groove frame and the lower right-angle groove frame, the traction belt continues to pull the sealing block to slide along the transverse edges of the upper right-angle groove frame and the lower right-angle groove frame, the sealing block drives the sliding table to slide along the transverse edge of the lower right-angle groove frame simultaneously, the sealing block is moved away from the discharge port at the bottom of the stirring device to discharge materials, after the mixture enters the extrusion device, the extrusion power source is started, the spiral feeding shaft is driven to rotate through the transmission belt II to feed the mixture, the mixture is transported to the extrusion plate to be extruded from the hole on the extrusion plate, the extrusion plate can be replaced at any time due to the movable arrangement, so as to adjust the size of the hole on the extrusion plate, after the extrusion is finished, the positioning rod is pulled out, at the moment, the cleaning rod shaft is in a movable state, the cleaning rod shaft is rotated, the cleaning rod shaft drives the cleaning rod to slide through the transmission connecting rod and extend out to be in contact with the inner wall of the outer barrel of the extrusion device, the positioning rod is inserted again after the cleaning rod shaft is in contact with the outer barrel of the extrusion device to fix the cleaning rod shaft, and the cleaning rod shaft is in a cleaning mode and can rotate along with the spiral feeding shaft to clean the inner wall of the outer barrel of the extrusion device.

Compared with the prior art, the invention has the beneficial effects that: (1) according to the invention, through the arranged stirring device and the internal structure thereof, the problems of insufficient and uneven stirring can be effectively solved, and the effect on mixed materials is more obvious; (2) according to the automatic sealing device, the sealing and discharging can be automatically carried out through the arranged sealing device, so that the automation degree of production is effectively improved; (3) the cleaning rod provided by the invention can be used for effectively cleaning in time after extrusion is finished.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2-3 are schematic structural views of the stirring device of the present invention.

Fig. 4 is a schematic structural view of the sealing device of the present invention.

Fig. 5-10 are schematic views of the extrusion device of the present invention.

Detailed Description

The invention will be further described with reference to the drawings and illustrative embodiments, which are provided herein to illustrate and not to limit the invention. In addition, if a detailed description of the known art is not necessary to show the features of the present invention, it is omitted.

The first embodiment is as follows: referring to the production device of the high temperature resistant and high shading PBT-based composite material shown in FIGS. 1-10, an extrusion device 3 is arranged at the lower side of a stirring device 1, a discharge port is arranged at the bottom of the stirring device 1, and a sealing device 2 is arranged at the discharge port.

Referring to fig. 2-3, a stirring device 1 is shown, wherein a stirring power source 4 is fixedly disposed on a barrel, the stirring power source 4 is connected to a stirring shaft 6 through a first transmission belt 5, the stirring shaft 6 is of a hollow structure, a stirring fixing shaft 11 is fixedly disposed on the barrel and located in the stirring shaft 6, a stirring rod 7 is rotatably disposed on the stirring shaft 6 in a penetrating manner, a plurality of auxiliary stirring rods 8 are fixedly disposed on the stirring rod 7, a stirring fixing gear 10 is fixedly disposed on the stirring fixing shaft 11, a stirring rotating gear 9 is fixedly disposed on one end of the stirring rod 7 located in the stirring shaft 6, the stirring rotating gear 9 and the stirring fixing gear 10 are in gear fit, the stirring rod 7, the auxiliary stirring rods 8, the stirring rotating gear 9 and the stirring fixing gear 10 form a group of stirring components, the plurality of stirring components are disposed on the same plane and are uniformly distributed in a left-right staggered manner along the axial direction of the stirring fixing shaft 11, the stirring gear ring 12 is fixedly arranged on the cylinder body, the stirring gear ring 12 is in gear fit with the edge stirring gear 13, the edge stirring gear 13 is fixedly connected with the edge stirring shaft 15, the edge stirring shaft 15 is rotatably arranged on the connecting plate 14, the connecting plate 14 is fixedly arranged on the stirring shaft 6, and the edge stirring shaft 15 is attached to the inner wall of the cylinder body. When the stirring device works, materials to be mixed are firstly put into the barrel, then the stirring power source 4 is started, the stirring power source 4 drives the stirring shaft 6 to rotate through the first transmission belt 5, the stirring rod 7 arranged on the stirring shaft 6 and the auxiliary stirring rod 8 arranged on the stirring rod 7 rotate along with the rotation of the stirring shaft 6 to stir, the stirring rod 7 is provided with the stirring rotating gear 9, the stirring rotating gear 9 is matched with the stirring fixed gear 10 arranged on the stirring fixed shaft 11, the stirring shaft 7 rotates along with the rotation of the stirring shaft 6 due to the fixed arrangement of the stirring fixed shaft 11, the auxiliary stirring rod 8 also rotates along with the rotation of the stirring rod 7 to stir more fully, the stirring shaft 6 drives the stirring shaft edge 15 to rotate through the connecting plate 14 while the stirring shaft 6 rotates, the edge stirring shaft 15 rotates through the matching of the edge stirring gear 13 and the stirring gear ring 12, the problem of among the prior art near barrel inner wall stirring insufficient and easy wall built-up etc is solved.

Referring to the sealing device 2 shown in fig. 4, an upper right-angle groove frame 21 and a lower right-angle groove frame 22 are fixedly arranged at the bottom of the stirring device 1, a sealing block 16 is simultaneously slidably arranged in the longitudinal edges of the upper right-angle groove frame 21 and the lower right-angle groove frame 22, the sealing block 16 is fixedly connected with one end of a traction belt 17, the sealing block 16 is slidably arranged on a sliding table 19 through a longitudinal return spring 20, the sliding table 19 is slidably arranged in the transverse edge of the lower right-angle groove frame 22, the sliding table 19 is simultaneously slidably arranged on the stirring device 1 through a transverse return spring 25, a rotating roller 18 is rotatably arranged on the sliding table 19, the other end of the traction belt 17 bypasses the rotating roller 18 and is fixedly arranged on a belt winding wheel 23, the belt winding wheel 23 is fixedly connected with a sealing power source 24, and the sealing power source 24 is fixedly arranged on the stirring device 1. After the stirring is completed, the belt winding wheel 23 is driven to rotate by the sealing power source 24, the belt winding wheel 23 pulls the sealing block 16 to slide on the longitudinal sides of the upper right-angle groove frame 21 and the lower right-angle groove frame 22 through the traction belt 17, when the sealing block 16 slides to the bottoms of the longitudinal sides of the upper right-angle groove frame 21 and the lower right-angle groove frame 22, the traction belt 17 continues to pull the sealing block 16 to slide along the transverse sides of the upper right-angle groove frame 21 and the lower right-angle groove frame 22, meanwhile, the sealing block 16 drives the sliding table 19 to slide along the transverse side of the lower right-angle groove frame 22, the sealing block 16 is moved away from the discharge port at the bottom of the stirring device 1, and discharging is carried out.

Referring to fig. 5-10, an extrusion apparatus 3 is shown, wherein a screw feeding shaft 30 is rotatably disposed in an outer barrel 26 of the extrusion apparatus, one end of the screw feeding shaft 30 is connected to an extrusion power source 27 through a second driving belt 28, an extrusion plate 29 is movably disposed on the outer barrel 26 of the extrusion apparatus, a hole for extrusion is disposed on the extrusion plate 29, the shaft of the screw feeding shaft 30 is a hollow structure, and a cleaning rod shaft 34 is rotatably disposed inside the shaft, one end of a driving link 35 is rotatably disposed on the cleaning rod shaft 34, the other end of the driving link 35 is rotatably connected to the cleaning rod 36, the cleaning rod 36 passes through the shaft of the screw feeding shaft 30 and is slidably disposed in a spiral slice of the screw feeding shaft 30, a fixing plate 33 is fixedly disposed at one end of the screw feeding shaft 30, a positioning plate 32 is fixedly disposed on the cleaning rod shaft 34, the positioning plate 32 and the fixing plate 33 are located at the same end, and positioning holes are disposed on the fixing plate 33 and the positioning plate 32, the fixing plate 33 corresponds to the positioning hole on the positioning plate 32 and is connected by the positioning rod 31. After the mixture enters the extrusion device 3, the extrusion power source 27 is started, the screw feeding shaft 30 is driven to rotate through the second transmission belt 28 for feeding, the mixture is conveyed to the extrusion plate 29 and is extruded from the hole in the extrusion plate 29, the extrusion plate 29 can be replaced at any time due to the movable arrangement, the size of the hole in the extrusion plate 29 is adjusted, after the extrusion is completed, the positioning rod 31 is pulled out, the cleaning rod shaft 34 is in a movable state, the cleaning rod shaft 34 is rotated, the cleaning rod shaft 34 drives the cleaning rod 36 to slide and extend out to be in contact with the inner wall of the outer barrel 26 of the extrusion device through the transmission connecting rod 35, the positioning rod 31 is inserted again to fix the cleaning rod shaft 34 after the contact, the cleaning mode is adopted, and the inner wall of the outer barrel 26 of the extrusion device can be cleaned through the cleaning rod 36 rotating along with the screw feeding shaft 30.

Example two: the embodiment also discloses a preparation method for preparing the high-temperature-resistant high-shading PBT-based composite material based on the production device of the first embodiment, which comprises the following steps:

s1: adding PBT polymer, high-temperature antioxidant and light stabilizer into the stirring device 1, wherein the high-temperature antioxidant accounts for 0.1-0.15% and the light stabilizer accounts for 0.3-0.5%;

s2: starting the stirring device 1 to uniformly mix the materials added in the S stirring device 1;

s3: the mixed material is put into an extrusion device 3 to be extruded.

It should be understood that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same, and those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some technical features; and all such modifications and alterations are intended to fall within the scope of the appended claims.