CN112121973B

CN112121973B - Method for improving preparation quality of synthetic rubber material

Info

Publication number: CN112121973B
Application number: CN202010948621.8A
Authority: CN
Inventors: 秦志伟; 徐小倩; 杨栋生; 赵虎
Original assignee: Central Research Institute Of China Chemical Science And Technology Co ltd
Current assignee: CENTRAL RESEARCH INSTITUTE OF CHINA CHEMICAL SCIENCE AND TECHNOLOGY Co.,Ltd.
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-04-09
Anticipated expiration: 2040-09-10
Also published as: CN112121973A

Abstract

The invention belongs to the technical field of rubber manufacturing, and relates to a method for improving the preparation quality of a synthetic rubber material, which is completed by matching mechanical equipment for improving the preparation quality of the synthetic rubber material, wherein the mechanical equipment for improving the preparation quality of the synthetic rubber material comprises a heat-insulating cylinder, and a cylindrical working cavity is arranged in the heat-insulating cylinder; a cylindrical feed inlet is arranged in the middle of the top plate of the heat-insulating cylinder; the bottom plate of the heat-insulating cylinder is fixedly provided with a supporting leg and a first motor, and the output end of the first motor is fixedly connected with an elastic telescopic shaft; a primary grinding mechanism is arranged in the feed port, and a secondary grinding mechanism and a plurality of conveying mechanisms which are uniformly distributed along the circumferential direction of the elastic telescopic shaft are arranged in the working cavity; a plurality of first filtering holes are vertically formed in the bottom plate of the heat-insulating cylinder in a penetrating mode. The invention improves the grinding effect on the molten rubber material; the speed of the molten rubber material leaving between the outer wall of the grinding sheet and the inner wall of the grinding cylinder after double grinding is increased, and the grinding efficiency is increased.

Description

Method for improving preparation quality of synthetic rubber material

Technical Field

The invention belongs to the technical field of rubber manufacturing, and particularly relates to a method for improving the preparation quality of a synthetic rubber material.

Background

Synthetic rubbers, also known as synthetic elastomers, are highly elastic polymers synthesized by man. In the preparation of synthetic rubber, a plurality of rubber raw materials are heated to be in a molten state, then the molten rubber materials are ground to be more fine granules, and then the molten rubber materials are stirred and mixed. The following problems currently exist in the milling of molten rubber materials: (1) part of fine particles exist in the molten rubber material, and the fine particles are difficult to be fully ground, so that the grinding quality is reduced; (2) the distance between the two grinding plates is very small and cannot be adjusted in the grinding process, so that the speed of the non-ground molten rubber material entering between the two grinding plates is low, the speed of the ground molten rubber material leaving between the two grinding plates is also low, and the grinding efficiency is greatly reduced.

Disclosure of Invention

Technical problem to be solved

The invention provides a method for improving the preparation quality of a synthetic rubber material, and aims to solve the following problems in the prior art when a molten rubber material is ground: (1) part of fine particles exist in the molten rubber material, and the fine particles are difficult to be fully ground, so that the grinding quality is reduced; (2) the distance between the two grinding plates is very small and cannot be adjusted in the grinding process, so that the speed of the non-ground molten rubber material entering between the two grinding plates is low, the speed of the ground molten rubber material leaving between the two grinding plates is also low, and the grinding efficiency is greatly reduced.

(II) technical scheme

In order to solve the technical problems, the invention adopts the following technical scheme:

the method for improving the preparation quality of the synthetic rubber material is completed by matching mechanical equipment for improving the preparation quality of the synthetic rubber material, wherein the mechanical equipment for improving the preparation quality of the synthetic rubber material comprises a heat-insulating cylinder, and a cylindrical working cavity is arranged in the heat-insulating cylinder. The middle part of the top plate of the heat preservation cylinder is provided with a cylindrical feed inlet. The vertical fixed mounting in heat preservation barrel head plate lower surface has supporting leg and first motor, and the output fixed connection of first motor is vertical runs through heat preservation barrel head plate and with the coaxial elastic telescopic shaft of feed inlet. Install in the feed inlet and just grind the mechanism, install in the working chamber and grind mechanism and a plurality of along the conveying mechanism of elastic expansion shaft circumference evenly distributed again. A plurality of first filtering holes are vertically formed in the bottom plate of the heat-insulating cylinder in a penetrating mode.

The primary grinding mechanism comprises an upper grinding disc, a lower grinding disc and a second filtering hole. The upper grinding disc is fixedly arranged on the inner wall of the feeding hole, and the middle part of the upper grinding disc is downwards inclined and forms a circular through hole. The lower grinding disc is fixedly arranged on the telescopic section of the elastic telescopic shaft, and the middle part of the upper surface of the lower grinding disc inclines downwards and is matched with the lower surface of the upper grinding disc. A plurality of second filtering holes are vertically arranged on the lower grinding disc in a penetrating way. Molten rubber material is conveyed into a feed inlet, and the molten rubber material is stacked on the upper surface of the lower grinding disc after being guided by the upper grinding disc and permeates between the lower grinding disc and the upper grinding disc. The elastic telescopic shaft and the lower grinding disc are driven to rotate by the first motor, relative friction is generated between the lower grinding disc and the upper grinding disc, the molten rubber material is ground, and fine particles in the molten rubber material are ground into powder and fall down from the second filter hole.

The re-rolling mechanism comprises a first material guide plate, an elastic telescopic rod, a grinding piece, a second material guide plate, a supporting rod, a grinding cylinder, a reset unit, a first gear, a second gear and an inner gear ring. The first material guide disc is conical and is fixedly arranged on the telescopic section of the elastic telescopic shaft. The number of the elastic telescopic rods is more than two and is horizontally and uniformly fixedly installed on the telescopic section of the elastic telescopic shaft along the circumferential direction of the elastic telescopic shaft. The end part of the telescopic section of the elastic telescopic rod is vertically and fixedly provided with a strip-shaped grinding disc. A conical second material guide disc is fixedly arranged on the bottom surface of the grinding disc. The upper surface of the bottom plate of the heat-insulating cylinder is provided with an annular groove coaxial with the elastic telescopic shaft, a plurality of vertical supporting rods are rotatably arranged in the annular groove, and a grinding cylinder coaxial with the elastic telescopic shaft is fixedly arranged at the top of each supporting rod vertically. A reset unit is arranged between the grinding disc and the grinding cylinder. A first gear is horizontally and fixedly installed on the elastic telescopic shaft guide section, and a plurality of second gears meshed with the first gear are uniformly distributed on the upper surface of the heat-insulating cylinder bottom plate. An inner gear ring meshed with the second gear is horizontally and fixedly arranged on the inner side of the supporting rod. When the elastic telescopic shaft rotates, the elastic telescopic rod, the grinding piece and the first gear are driven to synchronously rotate, the grinding piece moves outwards horizontally under the action of centrifugal force, the elastic telescopic rod is stretched, and the distance between the grinding piece and the grinding cylinder is reduced. When the grinding sheet is attached to the grinding cylinder, the horizontal movement is restored to the original position under the action of the reset unit, the elastic telescopic rod is shortened to the initial length, and the distance between the grinding sheet and the grinding cylinder is increased. With continued rotation of the elastically telescopic shaft, the distance between the grinding plate and the grinding bowl periodically increases and decreases. The second gear is driven to rotate in the rotation process of the first gear, and the second gear drives the inner gear ring to rotate, so that the supporting rod and the grinding cylinder generate horizontal rotation movement opposite to the direction of the grinding sheet, the relative speed between the grinding cylinder and the grinding sheet is increased, and the grinding effect is improved. The molten rubber material falling from the second filtering hole enters between the grinding cylinder and the grinding sheet after passing through the first material guide plate, and is subjected to re-grinding under the action of the grinding cylinder and the grinding sheet. The molten rubber material after double grinding leaves between the grinding cylinder and the grinding sheet, falls onto the second material guide disc, is guided by the second material guide disc and then is accumulated on the upper surface of the bottom plate of the heat-insulating cylinder, the molten rubber material which is fully ground flows out through the first filtering hole, and the molten rubber material which is not fully ground remains on the upper surface of the bottom plate of the heat-insulating cylinder.

The method for improving the preparation quality of the synthetic rubber material comprises the following steps:

firstly, primary grinding of molten rubber: the rubber material in a molten state is fed into the feeding port, and after the first motor is started, the fine particles in the molten rubber material are ground through the primary grinding mechanism to be crushed.

Step two, re-grinding the molten rubber: the primarily ground molten rubber material enters between the grinding plate and the grinding cylinder, and the molten rubber material is secondarily ground by mutual friction between the grinding plate and the grinding cylinder.

Step three, molten rubber conveying: the re-ground molten rubber material flows to the upper surface of the bottom plate of the heat-insulating cylinder, and the fully-ground molten rubber material flows out from the first filtering hole. The molten rubber material which is not fully ground is conveyed back to the first material guide disc through the conveying mechanism to be re-ground again until all the molten rubber material is fully ground.

As a preferred technical scheme of the invention, the inner wall of the feed inlet is fixedly provided with a bearing which is in mutual rotating fit with the telescopic section of the elastic telescopic shaft through a bracket, so that the elastic telescopic shaft is always in a vertical state when rotating, the rotating stability of the lower grinding disc and the grinding disc is improved when grinding, and the grinding effect is improved.

As a preferred technical scheme of the invention, a first disc is horizontally and fixedly installed at the top end of the telescopic section of the elastic telescopic shaft, and a second disc positioned above the first disc is horizontally and fixedly installed on the inner wall of the feeding hole through a support. A first guide block is arranged at the edge of the top surface of the first disc. The bottom surface of the second disc is provided with a second guide block corresponding to the position of the first guide block. When the elastic telescopic shaft rotates, the first disc and the first guide block are driven to rotate continuously; when the first guide block contacts the second guide block, the first guide block can move downwards under the thrust action of the second guide block, and meanwhile, the telescopic section of the elastic telescopic shaft and the grinding sheet are driven to move downwards. When the first guide block is separated from the second guide block, the elastic action of the elastic telescopic shaft enables the telescopic section of the elastic telescopic shaft and the grinding sheet to move upwards. The grinding plate periodically moves up and down so that the molten rubber material between the grinding plate and the grinding cylinder receives a frictional force in the horizontal direction and a frictional force in the vertical direction, thereby improving the grinding effect.

As a preferable technical scheme of the invention, the reset unit comprises a push block, a first accommodating groove, an installation block, a second accommodating groove, a limiting block, a first spring, a second spring, a connecting rod and an iron block. The ejector pad fixed mounting grinds the abrasive disc surface, grinds a section of thick bamboo inner wall level and offers annular first holding tank. Horizontal sliding fit has a plurality of installation piece in the first holding tank, and the second holding tank has been seted up to the position that first holding tank top surface corresponds the installation piece. The second accommodating groove is vertically matched with the limiting block in a sliding manner. The stopper bottom surface is the cambered surface, and the stopper top surface is connected with first spring between the second holding tank top surface vertically. And a second spring is horizontally and fixedly connected between the outer side surface of the mounting block and the side wall of the first accommodating groove. The outer side surface of the mounting block is horizontally and fixedly provided with a connecting rod penetrating through the grinding cylinder. The outer end of the connecting rod is fixedly provided with an iron block. The first motor is a variable-speed motor, and the rotation speed change of the first motor drives the rotation speed synchronous change of the elastic telescopic shaft. Under the initial state, the mounting block is tightly attached to the outer wall of the limiting block under the elastic action of the second spring and the limiting action of the limiting block. The elastic telescopic shaft drives the elastic telescopic rod and the milling piece to synchronously rotate when rotating, the milling piece drives the pushing block to horizontally move outwards under the action of centrifugal force, the distance between the milling piece and the milling barrel is reduced, and the pushing block pushes the limiting block to move upwards along the second accommodating groove after being attached to the bottom surface of the limiting block, so that the first spring is compressed. The mounting block horizontally slides inwards along the first accommodating groove under the action of the elastic force of the second spring after being separated from the limiting action of the limiting block, and strikes the push block; the connecting rod and the iron block synchronously move inwards horizontally. The ejector pad receives the beating of installation piece and drives the piece level of milling inwards to remove, and elasticity telescopic link shortens, grinds the abrasive disc and grinds the distance grow between the section of thick bamboo. Then, the rotating speed of the first motor is increased, and the iron block is subjected to centrifugal force to drive the connecting rod and the mounting block to horizontally move outwards; in the process, the mounting block compresses the second spring and is attached to the bottom surface of the limiting block, so that the limiting block is pushed upwards into the second accommodating groove until the mounting block is separated from the bottom surface of the limiting block. The limiting block moves downwards under the action of the elastic force of the first spring and plays a limiting role in the mounting block. At the moment, the rotating speed of the first motor is reduced, so that the mounting block is tightly attached to the limiting block. The grinding disc horizontally moves inwards to return to the initial position, and then drives the push block to horizontally move outwards under the action of centrifugal force, so that the process is repeated. The distance between the refiner plates and the refiner barrel is periodically increased and decreased.

As a preferable technical scheme of the invention, the top of the outer end face of the push block and the top of the outer side face of the mounting block are rotatably provided with rollers so as to reduce the friction force with the bottom surface of the limiting block.

As a preferable technical scheme of the invention, the conveying mechanism comprises a mounting shaft, a helical blade, a sealing cylinder, a second motor and a third material guide disc. The installation axle is a plurality of and along elastic expansion axle circumference evenly distributed, and the vertical rotation of installation axle is installed between heat preservation section of thick bamboo roof and bottom plate. The installation epaxial fixed mounting has helical blade, and the vertical fixed mounting in the position that the installation axle was corresponded to heat preservation section of thick bamboo top plate bottom has a bottom open-ended sealed section of thick bamboo, and sealed section of thick bamboo inner wall and helical blade mutually support. The top surface of the top plate of the heat-insulating cylinder is vertically and fixedly provided with a second motor, and the output end of the second motor is fixedly connected with the top end of the mounting shaft. A through hole is formed in the side wall of the sealing barrel, and a third material guide disc is fixedly mounted on the side wall of the sealing barrel below the through hole. The third material guide plate is of a conical structure, and the inner end of the third material guide plate is inclined downwards and is positioned above the first material guide plate. The second motor rotates to drive the mounting shaft and the helical blade to synchronously rotate, the helical blade conveys the molten rubber material which is re-ground and then remains on the upper surface of the bottom plate of the heat-insulating cylinder to a third material guide plate, and the molten rubber material flows to the first material guide plate through the third material guide plate in a guiding way and is continuously re-ground.

As a preferred technical scheme of the invention, a plurality of third springs are vertically and fixedly installed on the top surface of the bottom plate of the heat-insulating cylinder around each first filtering hole, a circular sheet is horizontally and fixedly installed at the top of each third spring, and an inserted rod corresponding to each first filtering hole is vertically and fixedly installed on each circular sheet. The top of the inserted bar is fixedly provided with a first magnet block, and a plurality of second magnet blocks corresponding to the first magnet block are fixedly arranged on the mounting shaft through a horizontal mounting bar. When the mounting shaft rotates, the first magnet block and the second magnet block periodically generate mutual repulsion, so that the wafer and the insertion rod are periodically pushed to move downwards. The inserted link compresses the third spring when inserting in first filtration pore and carrying out the mediation to first filtration pore. After the mutual repulsion force between the first magnet block and the second magnet block disappears, the disc and the inserted rod are pushed to move upwards to the initial height under the elastic action of the third spring. Through the mutual repulsion and the elasticity combined action of third spring between first magnet piece and the second magnet piece for the inserted bar is periodically dredged first filtration pore, avoids first filtration pore to block up.

(III) advantageous effects

The invention has at least the following beneficial effects:

(1) the invention solves the following problems existing in the prior grinding of the molten rubber material: fine particles in the molten rubber material are difficult to be fully ground, so that the grinding quality is reduced; the distance between the two grinding plates is very small and cannot be adjusted in the grinding process, so that the speed of the non-ground molten rubber material entering between the two grinding plates is slow, the speed of the ground molten rubber material leaving between the two grinding plates is also slow, and the grinding efficiency is greatly reduced; because the molten rubber material has certain viscosity, the discharge hole can be blocked in the discharging process, and the discharging efficiency is reduced.

(2) When the molten rubber material is milled, the fine particles in the molten rubber material are milled by the primary milling mechanism, so that all the fine particles become powder and are then re-milled, and the milling quality is improved; in the double grinding mechanism, the molten rubber material is ground in the horizontal direction through mutual friction between the outer wall of the grinding sheet and the inner wall of the grinding cylinder, and meanwhile, the vertical friction force is generated through the periodic up-and-down movement between the outer wall of the grinding sheet and the inner wall of the grinding cylinder, so that the grinding effect on the molten rubber material is further improved.

(3) In the double grinding mechanism of the invention, the distance between the outer wall of the grinding sheet and the inner wall of the grinding cylinder is periodically increased and decreased, thereby increasing the speed of the molten rubber material after primary grinding entering between the outer wall of the grinding sheet and the inner wall of the grinding cylinder, simultaneously increasing the speed of the molten rubber material after secondary grinding leaving between the outer wall of the grinding sheet and the inner wall of the grinding cylinder, and increasing the grinding efficiency.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a diagram illustrating the steps of a method for improving the quality of a synthetic rubber material in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of the internal structure of a mechanical apparatus for improving the quality of the synthetic rubber material in the embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an enlarged schematic view at A in FIG. 2;

FIG. 5 is an enlarged schematic view at B of FIG. 2;

fig. 6 is an enlarged schematic view at C in fig. 2.

In the figure: 1-heat preservation cylinder, 2-working chamber, 3-feed inlet, 4-first motor, 5-elastic telescopic shaft, 6-primary grinding mechanism, 61-upper grinding disc, 62-lower grinding disc, 63-second filtering hole, 7-secondary grinding mechanism, 71-first material guide disc, 72-elastic telescopic rod, 73-grinding disc, 74-second material guide disc, 75-support rod, 76-grinding cylinder, 77-resetting unit, 771-pushing block, 772-first accommodating groove, 773-mounting block, 774-second accommodating groove, 775-limiting block, 776-first spring, 777-second spring, 778-connecting rod, 779-iron block, 78-first gear, 79-second gear, 710-inner gear ring, 8-conveying mechanism, 81-mounting shaft, 82-helical blade, 83-sealing cylinder, 84-second motor, 85-third guide plate, 9-first filtering hole, 10-bearing, 11-first disk, 12-second disk, 13-first guide block, 14-second guide block, 15-third spring, 16-disk, 17-inserted bar, 18-first magnet block and 19-second magnet block.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 2 to fig. 6, the present embodiment provides a mechanical device for improving the quality of synthetic rubber material, which includes a heat-insulating cylinder 1, and a cylindrical working chamber 2 is disposed in the heat-insulating cylinder 1. The middle part of the top plate of the heat preservation cylinder 1 is provided with a cylindrical feed inlet 3. The vertical fixed mounting of 1 bottom plate lower surface of heat preservation section of thick bamboo has supporting leg and variable speed first motor 4, and the output fixed connection of first motor 4 vertically runs through 1 bottom plate of heat preservation section of thick bamboo and with the coaxial elastic expansion shaft 5 of feed inlet 3. The inner wall of the feed inlet 3 is fixedly provided with a bearing 10 which is matched with the telescopic section of the elastic telescopic shaft 5 in a rotating way through a bracket, so that the elastic telescopic shaft 5 is always in a vertical state when rotating, the rotating stability of the lower grinding disc 62 and the grinding sheet 73 is improved, and the grinding effect is improved. The feeding port 3 is internally provided with a primary grinding mechanism 6, and the working chamber 2 is internally provided with a secondary grinding mechanism 7 and a plurality of conveying mechanisms 8 which are uniformly distributed along the circumferential direction of the elastic telescopic shaft 5. A plurality of first filtering holes 9 are vertically arranged on the bottom plate of the heat-preserving cylinder 1 in a penetrating way.

The primary grinding mechanism 6 comprises an upper grinding disc 61, a lower grinding disc 62 and a second filtering hole 63. The upper grinding disc 61 is fixedly arranged on the inner wall of the feed port 3, and the middle part of the upper grinding disc 61 is downwards inclined and forms a circular through hole. The lower grinding disc 62 is fixedly arranged on the telescopic section of the elastic telescopic shaft 5, and the middle part of the upper surface of the lower grinding disc 62 is inclined downwards and is matched with the lower surface of the upper grinding disc 61. A plurality of second filtering holes 63 vertically penetrate through the lower grinding disc 62. Molten rubber material is conveyed into the feed inlet 3, and the molten rubber material is guided by the upper grinding disc 61 and then accumulated on the upper surface of the lower grinding disc 62 and permeates between the lower grinding disc 62 and the upper grinding disc 61. The elastic telescopic shaft 5 and the lower grinding disc 62 are driven to rotate by the first motor 4, relative friction is generated between the lower grinding disc 62 and the upper grinding disc 61, the molten rubber material is ground, and fine particles in the molten rubber material are ground into powder and fall from the second filtering hole 63.

The re-rolling mechanism 7 comprises a first material guide disc 71, an elastic telescopic rod 72, a milling sheet 73, a second material guide disc 74, a supporting rod 75, a milling drum 76, a resetting unit 77, a first gear 78, a second gear 79 and an inner gear ring 710. The first material guiding disc 71 is conical and is fixedly mounted on the telescopic section of the elastic telescopic shaft 5. The number of the elastic telescopic rods 72 is more than two and is horizontally and uniformly fixedly installed on the telescopic section of the elastic telescopic shaft 5 along the circumferential direction of the elastic telescopic shaft 5. The end of the telescopic section of the elastic telescopic rod 72 is vertically and fixedly provided with a strip-shaped grinding sheet 73. A second guide plate 74 with a cone shape is fixedly arranged on the bottom surface of the milling disc 73. An annular groove coaxial with the elastic telescopic shaft 5 is formed in the upper surface of the bottom plate of the heat preservation cylinder 1, a plurality of vertical supporting rods 75 are rotatably mounted in the annular groove, and a grinding cylinder 76 coaxial with the elastic telescopic shaft 5 is vertically and fixedly mounted at the top of each supporting rod 75. A reset unit 77 is provided between the grinding plate 73 and the grinding cylinder 76. The guide section of the elastic telescopic shaft 5 is horizontally and fixedly provided with a first gear 78, and the upper surface of the bottom plate of the heat-insulating cylinder 1 is uniformly provided with a plurality of second gears 79 which are meshed with the first gear 78. An inner gear ring 710 engaged with the second gear 79 is horizontally and fixedly installed at the inner side of the supporting bar 75. When the elastic telescopic shaft 5 rotates, the elastic telescopic rod 72, the grinding sheet 73 and the first gear 78 are driven to synchronously rotate, the grinding sheet 73 moves outwards horizontally under the action of centrifugal force, the elastic telescopic rod 72 is stretched, and the distance between the grinding sheet 73 and the grinding cylinder 76 is reduced. When the grinding sheet 73 is attached to the grinding cylinder 76 and then the horizontal movement is restored to the original position by the restoring unit 77, the elastic telescopic rod 72 is shortened to the original length, and the distance between the grinding sheet 73 and the grinding cylinder 76 is increased. As the elastic telescopic shaft 5 continues to rotate, the distance between the grinding blades 73 and the grinding cylinder 76 periodically increases and decreases. The first gear 78 drives the second gear 79 to rotate in the rotating process, and the second gear 79 drives the inner gear ring 710 to rotate, so that the supporting rod 75 and the grinding cylinder 76 generate horizontal rotating motion opposite to the direction of the grinding sheet 73, the relative speed between the grinding cylinder 76 and the grinding sheet 73 is increased, and the grinding effect is improved. The molten rubber material falling from the second filtering holes 63 passes through the first material guide plate 71, enters between the milling drum 76 and the milling sheets 73, and is re-milled under the action of the milling drum 76 and the milling sheets 73. The molten rubber material after re-grinding leaves between the grinding cylinder 76 and the grinding sheet 73, falls onto the second material guide disc 74, is guided by the second material guide disc 74 and then is accumulated on the upper surface of the bottom plate of the heat-insulating cylinder 1, the molten rubber material which is fully ground flows out through the first filtering holes 9, and the molten rubber material which is not fully ground remains on the upper surface of the bottom plate of the heat-insulating cylinder 1.

The top end of the telescopic section of the elastic telescopic shaft 5 is horizontally and fixedly provided with a first disc 11, and the inner wall of the feed inlet 3 is horizontally and fixedly provided with a second disc 12 positioned above the first disc 11 through a support. A first guide block 13 is installed at the edge of the top surface of the first disc 11. A second guide block 14 is installed at a position of the bottom surface of the second disc 12 corresponding to the first guide block 13. When the elastic telescopic shaft 5 rotates, the first disc 11 and the first guide block 13 are driven to rotate continuously; when the first guide block 13 contacts the second guide block 14, the first guide block moves downwards under the thrust of the second guide block 14, and simultaneously drives the telescopic section of the elastic telescopic shaft 5 and the grinding sheet 73 to move downwards. When the first guide block 13 is separated from the second guide block 14, the elastic force of the elastic telescopic shaft 5 causes the telescopic sections of the elastic telescopic shaft 5 and the grinding pieces 73 to move upward. The grinding plate 73 is periodically moved up and down so that the molten rubber material between the grinding plate 73 and the grinding bowl 76 is subjected to frictional force in the vertical direction as well as frictional force in the horizontal direction, thereby enhancing the grinding effect.

The reset unit 77 includes a push block 771, a first receiving groove 772, an installation block 773, a second receiving groove 774, a limit block 775, a first spring 776, a second spring 777, a connecting rod 778 and an iron block 779. The pushing block 771 is fixedly installed on the outer surface of the grinding disc 73, and an annular first receiving groove 772 is horizontally formed on the inner wall of the grinding cylinder 76. A plurality of mounting blocks 773 are horizontally and movably fitted in the first receiving groove 772, and a second receiving groove 774 is formed in the position, corresponding to the mounting blocks 773, of the top surface of the first receiving groove 772. The second receiving slot 774 vertically and slidably fits the stopper 775. The bottom surface of the limiting block 775 is an arc surface, and a first spring 776 is vertically connected between the top surface of the limiting block 775 and the top surface of the second accommodating groove 774. A second spring 777 is horizontally and fixedly connected between the outer side surface of the mounting block 773 and the side wall of the first receiving groove 772. A connecting rod 778 penetrating through the grinding cylinder 76 is horizontally and fixedly arranged on the outer side surface of the mounting block 773. An iron block 779 is fixedly arranged at the outer end of the connecting rod 778. The first motor 4 is a variable-speed motor, and the rotation speed of the first motor 4 changes to drive the rotation speed of the elastic telescopic shaft 5 to change synchronously. In an initial state, the mounting block 773 is tightly attached to the outer wall of the stopper 775 under the elastic force of the second spring 777 and the limiting effect of the stopper 775. When the elastic telescopic shaft 5 rotates, the elastic telescopic rod 72 and the grinding sheet 73 are driven to synchronously rotate, the grinding sheet 73 drives the push block 771 to horizontally move outwards under the action of centrifugal force, the distance between the grinding sheet 73 and the grinding cylinder 76 is reduced, and the push block 771 is attached to the bottom surface of the limit block 775 and then pushes the limit block 775 to move upwards along the second accommodating groove 774, so that the first spring 776 is compressed. After the mounting block 773 is separated from the limiting function of the limiting block 775, the mounting block 773 horizontally slides inwards along the first accommodating groove 772 under the elastic force of the second spring 777, and strikes the pushing block 771; the connecting rod 778 and the iron block 779 move horizontally inward in synchronization. The pushing block 771 is hit by the mounting block 773 to drive the grinding disc 73 to move horizontally inwards, the elastic expansion rod 72 is shortened, and the distance between the grinding disc 73 and the grinding cylinder 76 is increased. Subsequently, the rotating speed of the first motor 4 is increased, and the iron block 779 is driven by centrifugal force to drive the connecting rod 778 and the mounting block 773 to move horizontally outwards; in the process, the mounting block 773 compresses the second spring 777 and adheres to the bottom surface of the stop block 775, so that the stop block 775 is pushed upwards into the second receiving groove 774 until the mounting block 773 is separated from the bottom surface of the stop block 775. The stopper 775 moves down by the elastic force of the first spring 776 and has a stopper function on the mounting block 773. At this time, the rotation speed of the first motor 4 is reduced, so that the mounting block 773 is tightly attached to the limiting block 775. The grinding sheet 73 moves horizontally inward to the initial position and then drives the pushing block 771 to move horizontally outward under the action of centrifugal force, thereby repeating the above process. The distance between refiner plates 73 and refiner barrel 76 periodically increases and decreases. The rollers are rotatably arranged at the top of the outer end face of the push block 771 and the top of the outer side face of the mounting block 773 to reduce the friction force with the bottom face of the limit block 775.

The conveying mechanism 8 includes a mounting shaft 81, a helical blade 82, a sealing cylinder 83, a second motor 84, and a third guide plate 85. Installation axle 81 is a plurality of and along 5 circumference evenly distributed of elastic expansion shaft, and the vertical rotation of installation axle 81 is installed between 1 roof of a section of thick bamboo that keeps warm and bottom plate. The mounting shaft 81 is fixedly provided with a helical blade 82, the bottom surface of the top plate of the heat preservation cylinder 1 is vertically and fixedly provided with a sealing cylinder 83 with an opening at the bottom corresponding to the position of the mounting shaft 81, and the inner wall of the sealing cylinder 83 is matched with the helical blade 82. The top surface of the top plate of the heat preservation cylinder 1 is vertically and fixedly provided with a second motor 84, and the output end of the second motor 84 is fixedly connected with the top end of the mounting shaft 81. A through hole is formed in the side wall of the sealing cylinder 83, and a third material guide plate 85 is fixedly installed on the side wall of the sealing cylinder 83 below the through hole. The third material guiding plate 85 is a conical structure, and the inner end of the third material guiding plate 85 is inclined downwards and is located above the first material guiding plate 71. The second motor 84 rotates to drive the mounting shaft 81 and the helical blade 82 to rotate synchronously, the helical blade 82 conveys the molten rubber material, which is re-ground and remains on the upper surface of the bottom plate of the heat-insulating cylinder 1, to the third material guiding plate 85, and the molten rubber material is guided by the third material guiding plate 85 to flow onto the first material guiding plate 71 to be re-ground continuously. A plurality of third springs 15 are vertically and fixedly installed on the top surface of the bottom plate of the heat-insulating cylinder 1 around each first filtering hole 9, a wafer 16 is horizontally and fixedly installed on the top of each third spring 15, and an inserted rod 17 corresponding to each first filtering hole 9 is vertically and fixedly installed on the wafer 16. A first magnet block 18 is fixedly mounted on the top of the insertion rod 17, and a plurality of second magnet blocks 19 corresponding to the first magnet block 18 are fixedly mounted on the mounting shaft 81 through horizontal mounting rods. When the mounting shaft 81 rotates, the first magnet block 18 and the second magnet block 19 periodically generate a repulsive force, thereby periodically pushing the wafer 16 and the plunger 17 downward. The insertion rod 17 is inserted into the first filtering hole 9 to dredge the first filtering hole 9 and compress the third spring 15. After the repulsive force between the first magnet block 18 and the second magnet block 19 disappears, the disc 16 and the plunger 17 are pushed upward by the elastic force of the third spring 15 to return to the original height. Through the mutual repulsion between the first magnet block 18 and the second magnet block 19 and the combined action of the elasticity of the third spring 15, the inserted bar 17 periodically dredges the first filtering holes 9, and the first filtering holes 9 are prevented from being blocked.

As shown in fig. 1, this embodiment provides a method for improving the preparation quality of an elastomer material, which is completed by using the above mechanical equipment for improving the preparation quality of an elastomer material, and the method for improving the preparation quality of an elastomer material includes the following steps:

firstly, primary grinding of molten rubber: the rubber material in a molten state is fed into the feed port 3, and after the first motor 4 is started, the fine particles in the molten rubber material are ground by the primary grinding mechanism 6 to be crushed.

Step two, re-grinding the molten rubber: the primarily ground molten rubber material enters between the grinding blade 73 and the grinding bowl 76, and the molten rubber material is secondarily ground by mutual friction between the grinding blade 73 and the grinding bowl 76.

Step three, molten rubber conveying: the re-ground molten rubber material flows to the upper surface of the bottom plate of the heat-insulating cylinder 1, and the sufficiently-ground molten rubber material flows out from the first filtering holes 9. The molten rubber material which is not sufficiently milled is conveyed back to the first material guide disc 71 through the conveying mechanism 8 to be re-milled until all the molten rubber material is sufficiently milled.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for improving the preparation quality of synthetic rubber materials is completed by matching mechanical equipment for improving the preparation quality of the synthetic rubber materials, and is characterized in that: the mechanical equipment for improving the preparation quality of the synthetic rubber material comprises a heat-insulating cylinder (1), wherein a cylindrical working cavity (2) is arranged in the heat-insulating cylinder (1); a cylindrical feed inlet (3) is arranged in the middle of the top plate of the heat-insulating cylinder (1); the lower surface of the bottom plate of the heat-insulating cylinder (1) is vertically and fixedly provided with a supporting leg and a first motor (4), and the output end of the first motor (4) is fixedly connected with an elastic telescopic shaft (5) which vertically penetrates through the bottom plate of the heat-insulating cylinder (1) and is coaxial with the feed inlet (3); a primary grinding mechanism (6) is arranged in the feeding hole (3), a secondary grinding mechanism (7) and a plurality of conveying mechanisms (8) which are uniformly distributed along the circumferential direction of the elastic telescopic shaft (5) are arranged in the working cavity (2); a bottom plate of the heat-insulating cylinder (1) is vertically provided with a plurality of first filtering holes (9) in a penetrating way;

the primary grinding mechanism (6) comprises an upper grinding disc (61), a lower grinding disc (62) and a second filtering hole (63); the upper grinding disc (61) is fixedly arranged on the inner wall of the feed port (3), and the middle part of the upper grinding disc (61) is inclined downwards to form a circular through hole; the lower grinding disc (62) is fixedly arranged on the telescopic section of the elastic telescopic shaft (5), the middle part of the upper surface of the lower grinding disc (62) is downwards inclined and is matched with the lower surface of the upper grinding disc (61); a plurality of second filtering holes (63) vertically penetrate through the lower grinding disc (62);

the double-grinding mechanism (7) comprises a first material guide disc (71), an elastic telescopic rod (72), a grinding sheet (73), a second material guide disc (74), a supporting rod (75), a grinding cylinder (76), a reset unit (77), a first gear (78), a second gear (79) and an inner gear ring (710); the first material guide disc (71) is conical and is fixedly arranged on the telescopic section of the elastic telescopic shaft (5); the number of the elastic telescopic rods (72) is more than two, and the elastic telescopic rods are horizontally and uniformly and fixedly arranged on the telescopic section of the elastic telescopic shaft (5) along the circumferential direction of the elastic telescopic shaft (5); the end part of the telescopic section of the elastic telescopic rod (72) is vertically and fixedly provided with a strip-shaped grinding sheet (73); a conical second material guide disc (74) is fixedly arranged on the bottom surface of the grinding disc (73); an annular groove coaxial with the elastic telescopic shaft (5) is formed in the upper surface of a bottom plate of the heat-insulating cylinder (1), a plurality of vertical supporting rods (75) are rotatably mounted in the annular groove, and a grinding cylinder (76) coaxial with the elastic telescopic shaft (5) is vertically and fixedly mounted at the top of each supporting rod (75); a reset unit (77) is arranged between the milling disc (73) and the milling cylinder (76); a first gear (78) is horizontally and fixedly arranged on the guide section of the elastic telescopic shaft (5), and a plurality of second gears (79) which are meshed with the first gear (78) are uniformly distributed on the upper surface of the bottom plate of the heat-insulating cylinder (1); an inner gear ring (710) which is meshed with the second gear (79) is horizontally and fixedly arranged on the inner side of the supporting rod (75);

firstly, primary grinding of molten rubber: feeding the rubber material in a molten state into the feeding hole (3), starting the first motor (4), and then grinding fine particles in the molten rubber material through the primary grinding mechanism (6) to obtain powder;

step two, re-grinding the molten rubber: the primarily ground molten rubber material enters between the grinding plate (73) and the grinding cylinder (76), and the molten rubber material is secondarily ground through mutual friction between the grinding plate (73) and the grinding cylinder (76);

step three, molten rubber conveying: the molten rubber material after being re-ground flows to the upper surface of the bottom plate of the heat-preserving cylinder (1), and the molten rubber material which is fully ground flows out from the first filtering hole (9); the molten rubber material which is not fully ground is conveyed back to the first material guide disc (71) through the conveying mechanism (8) to be re-ground until all the molten rubber material is fully ground.

2. The method for improving the preparation quality of the synthetic rubber material according to claim 1, wherein the method comprises the following steps: and a bearing (10) which is in mutual rotating fit with the telescopic section of the elastic telescopic shaft (5) is fixedly arranged on the inner wall of the feed inlet (3) through a support.

3. The method for improving the preparation quality of the synthetic rubber material according to claim 1, wherein the method comprises the following steps: a first disc (11) is horizontally and fixedly installed at the top end of the telescopic section of the elastic telescopic shaft (5), and a second disc (12) positioned above the first disc (11) is horizontally and fixedly installed on the inner wall of the feed port (3) through a support; a first guide block (13) is arranged at the edge of the top surface of the first disc (11); the bottom surface of the second disc (12) is provided with a second guide block (14) corresponding to the position of the first guide block (13).

4. The method for improving the preparation quality of the synthetic rubber material according to claim 1, wherein the method comprises the following steps: the reset unit (77) comprises a push block (771), a first accommodating groove (772), an installation block (773), a second accommodating groove (774), a limiting block (775), a first spring (776), a second spring (777), a connecting rod (778) and an iron block (779); the push block (771) is fixedly arranged on the outer surface of the grinding disc (73), and an annular first accommodating groove (772) is horizontally formed in the inner wall of the grinding cylinder (76); a plurality of mounting blocks (773) are arranged in the first accommodating groove (772) in a horizontal sliding fit mode, and a second accommodating groove (774) is formed in the position, corresponding to the mounting blocks (773), of the top surface of the first accommodating groove (772); a limiting block (775) is vertically and slidably matched in the second accommodating groove (774); the bottom surface of the limiting block (775) is an arc surface, and a first spring (776) is vertically connected between the top surface of the limiting block (775) and the top surface of the second accommodating groove (774); a second spring (777) is horizontally and fixedly connected between the outer side surface of the mounting block (773) and the side wall of the first accommodating groove (772); a connecting rod (778) penetrating through the grinding cylinder (76) is horizontally and fixedly arranged on the outer side surface of the mounting block (773); an iron block (779) is fixedly arranged at the outer end of the connecting rod (778).

5. The method for improving the preparation quality of the synthetic rubber material according to claim 4, wherein the method comprises the following steps: and rollers are rotatably arranged at the top of the outer end face of the push block (771) and the top of the outer side face of the mounting block (773).

6. The method for improving the preparation quality of the synthetic rubber material according to claim 1, wherein the method comprises the following steps: the conveying mechanism (8) comprises a mounting shaft (81), a helical blade (82), a sealing cylinder (83), a second motor (84) and a third material guide disc (85); the installation shafts (81) are multiple and uniformly distributed along the circumferential direction of the elastic telescopic shaft (5), and the installation shafts (81) are vertically and rotatably installed between the top plate and the bottom plate of the heat preservation cylinder (1); a spiral blade (82) is fixedly installed on the installation shaft (81), a sealing cylinder (83) with an opening at the bottom is vertically and fixedly installed on the bottom surface of the top plate of the heat preservation cylinder (1) corresponding to the position of the installation shaft (81), and the inner wall of the sealing cylinder (83) is matched with the spiral blade (82); a second motor (84) is vertically and fixedly installed on the top surface of the top plate of the heat-insulating cylinder (1), and the output end of the second motor (84) is fixedly connected with the top end of the installation shaft (81); a through hole is formed in the side wall of the sealing cylinder (83), and a third material guide disc (85) is fixedly arranged on the side wall of the sealing cylinder (83) below the through hole; the third material guide plate (85) is of a conical structure, and the inner end of the third material guide plate (85) inclines downwards and is positioned above the first material guide plate (71).

7. The method of claim 6, wherein the step of preparing the synthetic rubber material comprises: a plurality of third springs (15) are vertically and fixedly installed on the top surface of the bottom plate of the heat-insulating cylinder (1) around each first filtering hole (9), a wafer (16) is horizontally and fixedly installed on the top of each third spring (15), and an inserted rod (17) corresponding to each first filtering hole (9) is vertically and fixedly installed on each wafer (16); the top of the inserted bar (17) is fixedly provided with a first magnet block (18), and the mounting shaft (81) is fixedly provided with a plurality of second magnet blocks (19) corresponding to the first magnet block (18) through a horizontal mounting bar.