WO2022099443A1

WO2022099443A1 - Method for using high-precision thermal grinder to implement production of high-quality fibre

Info

Publication number: WO2022099443A1
Application number: PCT/CN2020/127734
Authority: WO
Inventors: 李现超; 于少强; 李显; 李强; 王川; 王磊
Original assignee: 菏泽市宁丰木业有限公司
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2022-05-19
Also published as: CN112476689B; CN112476689A

Abstract

A method for using a high-precision thermal grinder to implement the production of high-quality fibre, the thermal grinder comprising a grinder housing A (1) and a grinder housing B (2) connected together, the combination of grinder housing A (1) and grinder housing B (2) forming a thermal grinding chamber, a static grinding piece (4) and a moving grinding piece (5) being provided in the thermal grinding chamber, the inner side surfaces of the static grinding piece (4) and the moving grinding piece (5) being mutually fitting grinding surfaces, and an axial fine-tuning mechanism (10) being provided on a grinding shaft (6) and being used for adjusting the gap between the static grinding piece (4) and the moving grinding piece (5), such that the specifications of the ground fibre meet requirements, and high-quality fibre is produced. The thermal grinder has a simple structure, low price, stable operation, no vibration, low motor power, and high breaking and decomposition efficiency.

Description

A method of using a high-precision thermal mill to realize the production of high-quality fibers

technical field

The invention relates to a method for producing high-quality fibers by utilizing a high-precision thermal mill, and belongs to the technical field of wood processing.

Background technique

Wood is a composite material, and it is also a very complex biological organism. All the long and narrow wood cells except the ducts and parenchyma are collectively referred to as fibers. The fiber length is mostly between 2-5mm, the very short is about 1mm, and the very long is 7.438mm. The average chord diameter of the fibers is 0.02 to 0.04 mm. The smallest is 0.01mm, and the largest is 0.08mm.

The fiber morphology has a great influence on the MDF, the fiber is complete, the slenderness ratio is large, the flexibility and interweaving are good, and the quality of the board is high. The separation of fibers by thermal milling is to obtain fibers by mechanical methods after heating to weaken the firm bonding of fibers. Separating fibers is a very complex physical, mechanical and chemical transformation process, that is, the cooked fiber raw materials are forced into a high temperature, high humidity and high pressure grinding chamber for pressure and rubbing between the two grinding plates, so that they are compressed and rubbed together. It is decomposed by repeated external forces such as stretching, shearing, torsion, impact, friction and hydrolysis.

The thermal mill is mainly composed of a feeder, a preheating cooking device, a grinding device and a discharging device. The grinding device is the main body of the thermal mill and has a direct impact on the quality of the milled fibers. The existing thermal mill grinding device is mainly composed of a grinding head shell, a sealing mechanism, a static grinding plate, a dynamic grinding plate, and a grinding shaft system. The static grinding disc is fixed on the housing of the grinding head, and the dynamic grinding disc is installed on the end of the grinding shaft and moves together with the grinding shaft. The existing thermal mill grinding device lacks an axial fine-tuning mechanism, which requires dismantling the machine to adjust the gap between the static grinding plate and the movable grinding plate, which reduces the production efficiency. In order to improve the above-mentioned defects, a thermal mill with an axial fine-tuning mechanism is provided, and the axial fine-tuning mechanism is used to adjust the gap between the static grinding plate and the dynamic grinding plate, so that the specifications of the ground fibers meet the requirements and realize production. High quality fiber.

SUMMARY OF THE INVENTION

According to the above deficiencies in the prior art, the technical problem to be solved by the present invention is: in order to solve one of the above problems, a method for producing high-quality fibers by utilizing a high-precision thermal mill is provided.

The method for producing high-quality fibers by using a high-precision thermal mill according to the present invention is characterized in that: the high-precision thermal mill comprises a grinder housing A and a grinder housing B connected together, the grinder The housing A and the grinder housing B are combined to form a thermal grinding chamber, and the thermal grinding chamber is provided with a static grinding sheet and a moving grinding sheet. A feed pipe is installed on the non-grinding surface of the static grinding plate, the other end of the feeding pipe extends through the grinder shell A to the outside of the grinder shell A, and the non-grinding surface of the dynamic grinding plate is installed with a feed pipe. Grinding shaft, the other end of the grinding shaft extends through the grinder housing B to the outside of the grinder housing B, the outer wall of the grinder housing B has a grinding shaft sealing tailstock, and the middle part of the grinding shaft is sealed by the grinding shaft The tailstock is connected to the grinder shell B, the bottom of the grinder shell B has a discharge pipe, the non-grinding surface of the static grinding plate is installed with a flange, and the static grinding plate is installed on the grinding plate through the flange plate. On the housing A of the device, a feed pipe is integrally formed on the end face of the flange plate, the inner hole of the feed pipe is the same as the inner hole of the flange plate, and the other end face of the flange plate has an annular boss , the center of the static grinding plate has a center hole, the annular boss is embedded in the center hole, the flange is located between the grinder shell A and the static grinding plate, and the grinder shell A and the static grinding plate are fixed by tightening bolts. The plate and the flange are connected together. Sealing rings are provided on both sides of the outer edge of the flange. The grinding shaft is provided with an axial fine-tuning mechanism. The gap between the milled fibers can meet the requirements, and the production of high-quality fibers can be realized;

Preferably, the use method of the high-precision thermal mill includes the following steps: the cooked fiber raw material is forced to be sent into a high temperature, high humidity and high pressure grinding chamber through a feeding pipe to be pressurized and rubbed between two grinding sheets, It is decomposed by repeated external forces such as compression, stretching, shearing, torsion, impact, friction and hydrolysis, and the separated fibers are discharged through the discharge pipe.

Preferably, the grinder housing A and the grinder housing B are connected together by high-strength bolts, and a sealing ring is provided on the mating surfaces of the grinder housing A and the grinder housing B.

Preferably, the axial fine adjustment mechanism has a rotating outer casing, the rotating outer casing is coaxially arranged with the grinding shaft, and a thrust bearing A and a thrust bearing B are respectively installed at the front and rear ends of the rotating outer casing. The outer diameters of bearing A and thrust bearing B are mounted on the inner wall of the grinding shaft seal tailstock. The left side of the thrust bearing A has a front end anisotropic seal ring, and the right side of the thrust bearing B has a rear end anomaly seal ring.

Preferably, the axial fine adjustment mechanism includes a rotating outer casing, one end of the rotating outer casing is blocked, and the other end is open, the open end is provided with a tail end blocking plate, and both ends of the grinding shaft respectively penetrate through the outer casing. For the blocking end and the tail end blocking plate, a front rubber sealing seat, a rear rubber sealing seat and a front spherical concave surface are installed on the grinding shaft in the rotating outer shell, and one end of the front rubber sealing seat abuts against the rotating outer shell On the inner wall of the blocking end, the other end of the front rubber sealing seat has a front spherical concave surface, one end of the rear rubber sealing seat abuts on the inner wall of the tail end blocking plate, and the other end of the tail end blocking plate It has a rear spherical concave surface, and both ends of the middle sphere are respectively embedded in the front spherical concave surface and the rear spherical concave surface.

Preferably, the left side of the front rubber seal seat, the right side of the rear rubber seal seat, the front spherical concave surface and the rear spherical concave surface are provided with annular extrusion deformation grooves.

Preferably, the middle sphere includes a spherical half-body A and a spherical half-body B which are matched with each other, the spherical half-body A and the spherical half-body B are connected together by half-body connecting bolts and spliced together into a spherical shape, and the grinding shaft penetrates through The spherical half body A and the spherical half body B, the mating surfaces of the spherical half body A and the spherical half body B are respectively provided with a rubber sleeve installation cavity A and a rubber sleeve installation cavity B, and the rubber sleeve installation cavity A and the A rubber sleeve A and a rubber sleeve B are respectively installed in the rubber sleeve installation cavity B, and the inner diameters of the rubber sleeve A and the rubber sleeve B are sleeved on the grinding shaft.

Preferably, both the rubber sleeve A and the rubber sleeve B include a rigid sleeve body and an elastic sleeve sleeved on the outside of the rigid sleeve body, the elastic sleeve is made of rubber; The axially arranged grooves, the rigid shaft sleeve body and the grinding shaft are in an interference fit, and the elastic sleeve is in an interference fit with the rubber sleeve installation cavity A or the rubber sleeve installation cavity B.

Preferably, a clearance adjustment pad is installed on the left side of the rubber sleeve A and the right side of the rubber sleeve B, respectively, and the rubber sleeve A, the rubber sleeve B and the clearance adjustment pad are filled with the rubber sleeve installation cavity A and the rubber sleeve installation cavity. The mounting cavity formed by the B combination.

Preferably, the rotating outer casing, the tail end blocking plate and the assembly hole of the grinding shaft are all fitted with small clearances.

Preferably, the cooking softening and thermal grinding adopts saturated steam cooking and thermal grinding with a pressure of 0.75Mpa-0.85Mpa and a temperature of 100°C-180°C. At 1200-1600rmin.

Preferably, the front spherical concave surface is vulcanized together with the spherical half body A, and the front rubber sealing seat is bonded together with the rotating outer casing.

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

In the method for producing high-quality fibers by using a high-precision thermal mill according to the present invention, the grinding shaft cooperates with the adjusting nut at the tail end, the grinding shaft overcomes the resistance of the axial fine-tuning mechanism, and the adjusting nut at the tail end pulls the grinding shaft to the right. , in order to reduce the pressure in the grinding disc gap, on the contrary, the axial fine-tuning mechanism is reset to increase the pressure in the grinding disc gap and improve the grinding strength. In order to make the specifications of the milled fibers meet the requirements, the production of high-quality fibers can be realized.

Simple mechanical structure, low price, stable operation, no vibration, low motor power, high crushing and decomposition efficiency.

Through the setting of the axial fine-tuning mechanism, the gap of the grinding disc can also fluctuate within a small range according to the amount of material, avoiding serious jamming, and has strong wear resistance and impact resistance.

Description of drawings

In order to illustrate the specific embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that are required to be used in the description of the specific embodiments or the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. In the drawings, each element or section is not necessarily drawn to actual scale.

Fig. 1 is the structural representation of the present invention;

Fig. 2 is the structural schematic diagram 1 of the axial fine-tuning mechanism;

Fig. 3 is the structural schematic diagram 2 of the axial fine-tuning mechanism;

In the picture: 1. Grinder shell A 2, Grinder shell B 3, Feed pipe 4, Static grinding disc 5, Dynamic grinding disc 6, Grinding shaft 7, Grinding shaft sealing tailstock 8, Discharge pipe 9, Flange Disc 10, Axial fine-tuning mechanism 10.1, Rotary outer casing 10.2, Tail end blocking plate 10.3, Front rubber sealing seat 10.4, Rear rubber sealing seat 10.5, Front spherical concave surface 10.6, Rear spherical concave surface 10.7, Middle ball 10.8, Ring mounted Extrusion deformation groove 10.9, end adjustment nut 11, thrust bearing A 12, thrust bearing B 13, front end anisotropic seal 14, rear end anomaly seal 15, spherical half body A 16, spherical half body B 17, half body Connecting bolt 18, rubber sleeve installation cavity A 19, rubber sleeve installation cavity B 20, rubber sleeve A 21, rubber sleeve B.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings:

The present invention will be further described below through specific examples, but it is not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention. .

Example

As shown in 1-3, the use method for producing high-quality fibers is realized by using a high-precision thermal mill, the high-precision thermal mill includes a grinder housing A1 and a grinder housing B2 connected together, the grinder The shell A1 and the grinder shell B2 are combined to form a thermal grinding chamber, and the thermal grinding chamber has a static grinding plate 4 and a dynamic grinding plate 5, and the inner surfaces of the static grinding plate 4 and the dynamic grinding plate 5 are matched with each other. Grinding surface, a feed pipe 3 is installed on the non-grinding surface of the static grinding plate 4, and the other end of the feeding pipe 3 extends through the grinder shell A1 to the outside of the grinder shell A1, and the dynamic grinding plate A grinding shaft 6 is installed on the non-grinding surface of 5, the other end of the grinding shaft 6 extends through the grinder housing B2 to the outside of the grinder housing B2, and the outer wall of the grinder housing B2 has a grinding shaft sealing tailstock 7 , the middle of the grinding shaft 6 is connected to the grinder housing B2 through the grinding shaft sealing tailstock 7, the bottom of the grinder housing B2 has a discharge pipe 8, and the non-grinding surface of the static grinding plate 4 is installed with a method The flange plate 9, the static grinding plate 4 is installed on the grinder shell A1 through the flange plate 9, and the end surface of the flange plate 9 is integrally formed with a feed pipe 3, and the inner hole of the feed pipe 3 is connected to the The inner hole of the flange plate 9 is the same, the other end face of the flange plate 9 has an annular boss, the center of the static grinding plate 4 has a center hole 4.1, and the annular boss is embedded in the center hole 4.1. The flange plate 9 is located between the grinder shell A1 and the static grinding plate 4, and the grinder shell A1, the static grinding plate 4 and the flange plate 9 are connected together by fastening bolts, and the two sides of the outer edge of the flange plate 9 are connected together. Both are provided with sealing rings, and the grinding shaft 6 has an axial fine-tuning mechanism 10;

The use method of the high-precision thermal mill includes the following steps: the cooked fiber raw material is forced into the high temperature, high humidity and high pressure grinding chamber through the feeding pipe 3 to be pressurized and kneaded between the two grinding sheets to make it It is decomposed by repeated external forces such as compression, stretching, shearing, torsion, impact, friction and hydrolysis, and the separated fibers are discharged through the discharge pipe 8.

In this embodiment, the grinder housing A1 and the grinder housing B2 are connected together by high-strength bolts, and there are sealing rings on the mating surfaces of the grinder housing A1 and the grinder housing B2; the axial fine adjustment mechanism 10 has A rotating outer casing 10.1, the rotating outer casing 10.1 is coaxially arranged with the grinding shaft 6, the front end and the rear end of the rotating outer casing 10.1 are respectively mounted with a thrust bearing A11 and a thrust bearing B12, the thrust bearing A11 and the thrust bearing B12 The outer diameter of the thrust bearing A11 is installed on the inner wall of the grinding shaft seal tailstock 7. The left side of the thrust bearing A11 has a front end anisotropic sealing ring 13, and the right side of the thrust bearing B12 has a rear end anisotropic sealing ring 14; the axial direction The fine adjustment mechanism 10 includes a rotating outer casing 10.1, one end of the rotating outer casing 10.1 is blocked, the other end is open, the open end is installed with a tail end blocking plate 10.2, and the two ends of the grinding shaft 6 respectively penetrate the sealing. Blocking end and tail end blocking plate 10.2, a front rubber sealing seat 10.3, a rear rubber sealing seat 10.4 and a front spherical concave surface 10.5 are installed on the grinding shaft 6 in the rotating outer casing 10.1, one end of the front rubber sealing seat 10.3 The other end of the front rubber sealing seat 10.3 has a front spherical concave surface 10.5, and one end of the rear rubber sealing seat 10.4 abuts against the inner wall of the rear end blocking plate 10.2 , the other end of the tail end blocking plate 10.2 has a rear spherical concave surface 10.6, and both ends of the middle sphere 10.7 are respectively embedded in the front spherical concave surface 10.5 and the rear spherical concave surface 10.6; the left side of the front rubber sealing seat 10.3 , The right side of the rear rubber sealing seat 10.4, the front spherical concave surface 10.5 and the rear spherical concave surface 10.6 are provided with annular extrusion deformation grooves 10.8; Body B16, the spherical half body A15 and the spherical half body B16 are connected together by half body connecting bolts 17 to form a spherical shape, and the grinding shaft 6 penetrates the spherical half body A15 and the spherical half body B16, and the spherical half body A rubber sleeve installation cavity A18 and a rubber sleeve installation cavity B19 are respectively opened on the mating surfaces of the body A15 and the spherical half body B16. The rubber sleeve installation cavity A18 and the rubber sleeve installation cavity B19 are respectively installed with a rubber sleeve A20 and a rubber sleeve B21 , the inner diameter of the rubber sleeve A20 and the rubber sleeve B21 is sleeved on the grinding shaft 6; the rubber sleeve A20 and the rubber sleeve B21 both include a rigid sleeve body and an elastic sleeve sleeved outside the rigid sleeve body. The elastic sleeve is made of rubber; the outer wall of the elastic sleeve is evenly provided with grooves arranged along its axial direction, the rigid sleeve body and the grinding shaft 6 are in interference fit, and the elastic sleeve is installed with the rubber sleeve installation cavity A18 or the rubber sleeve The cavity B19 has an interference fit; the left side of the rubber sleeve A20 and the right side of the rubber sleeve B21 are respectively installed with a clearance adjustment pad, the rubber sleeve A20, the rubber sleeve B21 and the clearance adjustment pad are filled with the rubber sleeve installation cavity A18 and rubber Sleeve mounting cavity The installation cavity composed of B19; the rotating outer shell 10.1, the tail end blocking plate 10.2 and the assembly hole of the grinding shaft 6 are all small clearance fit; the pressure used for the cooking softening and hot grinding is 0.75Mpa-0.85 Mpa, the temperature is 100℃-180℃ saturated steam cooking and hot grinding, the hot grinding machine adopts high-speed hot grinding, and the speed of the hot grinding machine is controlled at 1200-1600rmin.

The working principle of the invention is as follows: the grinding shaft cooperates with the adjusting nut at the end, the grinding shaft overcomes the resistance of the axial fine-tuning mechanism, and the adjusting nut on the tail pulls the grinding shaft to the right to reduce the pressure in the gap between the grinding discs. On the contrary, the axial The fine-tuning mechanism is reset to increase the pressure in the gap between the grinding discs and improve the grinding strength. The axial fine-tuning mechanism is used to adjust the gap between the static grinding sheet and the moving grinding sheet, so that the specifications of the ground fibers meet the requirements and achieve high production. quality fiber.

The specific adjustment process is as follows: the spherical concave surface 10.6 at the rear end cooperates with the thread on the grinding shaft 6, and the adjusting nut 10.9 at the tail end is rotated by external force. The contact surface between the grinding shaft 6 and the rubber sleeve A20 and the rubber sleeve B21 does not move. Cover A20 and rubber sleeve B21, and squeeze the rear rubber seal seat 10.4 through the spherical half body B16. After the rear rubber seal seat 10.4 is deformed, the grinding shaft 6 moves to the right relative to the tail end blocking plate 10.2, and the grinding shaft overcomes the axial direction. To adjust the resistance of the fine-tuning mechanism, the adjustment nut at the end pulls the grinding shaft to the right to reduce the pressure in the gap between the grinding discs.

On the contrary, the axial fine-tuning mechanism is automatically reset to increase the pressure in the gap between the grinding discs and improve the grinding strength. The axial fine-tuning mechanism is used to adjust the gap between the static grinding plate and the moving grinding plate, so that the specifications of the ground fibers meet the requirements. requirements to achieve the production of high-quality fibers.

The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments, and the descriptions in the above-mentioned embodiments and the description are only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have Various changes and modifications fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims

A method for producing high-quality fibers by utilizing a high-precision thermal mill, characterized in that the high-precision thermal mill comprises a grinder housing A (1) and a grinder housing B (2) that are connected together, so The grinder housing A (1) and the grinder housing B (2) are combined to form a thermal grinding chamber, and the thermal grinding chamber is provided with a static grinding sheet (4) and a dynamic grinding sheet (5), the static grinding sheet (4) and the inner surface of the moving grinding plate (5) are grinding surfaces that cooperate with each other, and a feeding pipe (3) is installed on the non-grinding surface of the static grinding plate (4). The feeding pipe (3) The other end extends through the grinder housing A(1) to the outside of the grinder housing A(1). 6) The other end extends through the grinder housing B(2) to the outside of the grinder housing B(2), the outer wall of the grinder housing B(2) has a grinding shaft sealing tailstock (7), the grinding The middle part of the shaft (6) is connected with the grinder housing B (2) through the grinding shaft sealing tailstock (7), the bottom of the grinder housing B (2) has a discharge pipe (8), the static grinding plate ( 4) A flange (9) is installed on the non-grinding surface, and the static grinding disc (4) is installed on the grinder housing A (1) through the flange (9), and the flange (9) A feed pipe (3) is integrally formed on the end face of the feed pipe (3), the inner hole of the feed pipe (3) is the same as the inner hole of the flange plate (9), and the other end face of the flange plate (9) has an annular shape. A boss, the center of the static grinding plate (4) has a central hole (4.1), the annular boss is embedded in the central hole (4.1), and the flange (9) is located between the grinder housing A (1) and the static Between the grinding discs (4), the grinder housing A (1), the static grinding disc (4) and the flange (9) are connected together by fastening bolts, and the two outer edges of the flange (9) are connected together. Both sides are provided with sealing rings, the grinding shaft (6) is provided with an axial fine-tuning mechanism (10), and the axial fine-tuning mechanism is used to adjust the gap between the static grinding plate and the moving grinding plate;

The use method of the high-precision thermal mill includes the following steps: the cooked fiber raw material is forced to be sent into a high temperature, high humidity and high pressure grinding chamber through a feeding pipe (3) to be pressurized and rubbed between two grinding sheets, It is decomposed by repeated external forces such as compression, stretching, shearing, torsion, impact, friction and hydrolysis, and the separated fibers are discharged through the discharge pipe (8).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 1, characterized in that: the grinder housing A (1) and the grinder housing B (2) are connected together by high-strength bolts, A sealing ring is provided on the mating surfaces of the grinder housing A (1) and the grinder housing B (2).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 2, characterized in that: the axial fine adjustment mechanism (10) has a rotating outer casing (10.1), and the rotating outer casing (10.1 ) is coaxially arranged with the grinding shaft (6), the front end and the rear end of the rotating outer shell (10.1) are respectively mounted with a thrust bearing A (11) and a thrust bearing B (12), the thrust bearing A (11) and The outer diameter of the thrust bearing B (12) is mounted on the inner wall of the grinding shaft seal tailstock (7). The left side of the thrust bearing A (11) has a front end anisotropic sealing ring (13). The thrust bearing B (12 ) has a rear-end heterosexual sealing ring (14).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 3, wherein the axial fine-tuning mechanism (10) comprises a rotating outer casing (10.1), and the rotating outer casing (10.1 ) is blocked at one end and open at the other end, the open end is provided with a tail end blocking plate (10.2), and the two ends of the grinding shaft (6) respectively penetrate the blocking end and the tail end blocking plate (10.2). ), a front rubber sealing seat (10.3), a rear rubber sealing seat (10.4) and a front spherical concave surface (10.5) are installed on the grinding shaft (6) in the rotating outer casing (10.1). The front rubber sealing seat (10.5) One end of 10.3) abuts on the inner wall of the closed end of the rotating outer casing (10.1), the other end of the front rubber sealing seat (10.3) has a front spherical concave surface (10.5), and one end of the rear rubber sealing seat (10.4) abuts against the inner wall of the tail end blocking plate (10.2), the other end of the tail end blocking plate (10.2) has a rear spherical concave surface (10.6), and both ends of the middle sphere (10.7) are respectively embedded in the front spherical concave surface (10.5) and the rear spherical concave surface (10.6).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 4, characterized in that: the left side of the front rubber sealing seat (10.3) and the right side of the rear rubber sealing seat (10.4) The surface, the front spherical concave surface (10.5) and the rear spherical concave surface (10.6) are all provided with annular extrusion deformation grooves (10.8).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 5, characterized in that: the middle sphere (10.7) comprises a spherical half body A (15) and a spherical half body B ( 16), the spherical half body A (15) and the spherical half body B (16) are connected together by half body connecting bolts (17) to form a spherical shape, and the grinding shaft (6) runs through the spherical half body A (15) and the spherical half body B (16), the mating surfaces of the spherical half body A (15) and the spherical half body B (16) are respectively provided with a rubber sleeve installation cavity A (18) and a rubber sleeve installation cavity B (19), the rubber sleeve A (20) and the rubber sleeve B (21) are respectively installed in the rubber sleeve installation cavity A (18) and the rubber sleeve installation cavity B (19), the rubber sleeve A (20) and The inner diameter of the rubber sleeve B (21) is sleeved on the grinding shaft (6).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 6, wherein the rubber sleeve A (20) and the rubber sleeve B (21) both comprise a rigid sleeve body and a sleeve An elastic sleeve outside the rigid sleeve body, the elastic sleeve is made of rubber; the outer wall of the elastic sleeve is evenly provided with grooves arranged along its axial direction, and the rigid sleeve body and the grinding shaft (6) are in interference Matching, the elastic sleeve has an interference fit with the rubber sleeve installation cavity A (18) or the rubber sleeve installation cavity B (19).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 7, characterized in that: the left side of the rubber sleeve A (20) and the right side of the rubber sleeve B (21) are respectively installed with The gap adjustment pad, the rubber sleeve A (20), the rubber sleeve B (21) and the gap adjustment pad are filled with the installation cavity formed by the rubber sleeve installation cavity A (18) and the rubber sleeve installation cavity B (19).
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 8, characterized in that: the rotating outer casing (10.1), the tail end blocking plate (10.2) and the grinding shaft (6) are in contact with each other. There is a small clearance fit between the assembly holes.
The method for producing high-quality fibers by using a high-precision thermal mill according to claim 9, characterized in that the pressure used in the cooking softening and thermal grinding is 0.75Mpa-0.85Mpa, and the temperature is 100°C-180°C Saturated steam cooking and thermal grinding, the thermal grinding machine adopts high-speed thermal grinding, and the speed of the thermal grinding machine is controlled at 1200-1600r/min.