CN110435186B

CN110435186B - Method for pre-impregnating small-tow carbon fibers

Info

Publication number: CN110435186B
Application number: CN201910666284.0A
Authority: CN
Inventors: 李海龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2021-06-01
Anticipated expiration: 2039-07-23
Also published as: CN110435186A

Abstract

The invention relates to the field of carbon fiber prepreg, in particular to a method for preparing small-tow carbon fiber prepreg, which comprises the following steps: installing a small-tow carbon fiber prepreg device at a discharge port of small-tow carbon fibers; the small-tow carbon fibers are wound in the cavity of the prepreg device, the tows penetrate through the storage tank of the prepreg device, and the carbon fibers are fixed on the tractor; the inside of adding into the stock chest with the resin that matches, resin impregnation silk bundle and through the roller, the extrusion rubber roll is pulled out, accomplish the preimpregnation material of little silk bundle carbon fiber, this method has adopted little silk bundle carbon fiber preimpregnation material device, this little silk bundle carbon fiber preimpregnation material device makes little silk bundle carbon fiber invade bubble formula preimpregnation material back from the inside of annotating the material structure, the S-shaped twines on a plurality of guide structure, the frictional force between guide structure and the little silk bundle carbon fiber has been increased, carry on spacingly to little silk bundle carbon fiber, little silk bundle carbon fiber and guide structure slippage have been avoided, make resin more even scribble on little silk bundle carbon fiber.

Description

Method for pre-impregnating small-tow carbon fibers

Technical Field

The invention relates to the field of carbon fiber prepreg, in particular to a method for preparing a small-tow carbon fiber prepreg.

Background

The carbon fiber is high-strength high-modulus fiber with carbon content of more than 90 percent; high temperature resistance resides in the first of all chemical fibers; acrylic fiber and viscose fiber are used as raw materials and are oxidized and carbonized at high temperature to form the acrylic fiber/viscose fiber composite material; the carbon fiber prepreg is an excellent material for manufacturing high-technology equipment such as aerospace and aviation, and various products can be molded after the small-tow carbon fibers are subjected to prepreg. 12K small tow

To 12K's little silk bundle carbon fiber prepreg in-process, the resin deposits easily and causes the prepreg inhomogeneous, when adopting the formula of soaking prepreg, guide through the guide pulley with the carbon fiber guide get into the stock chest and soak completely in the resin in the stock chest and carry out the prepreg, when the carbon fiber left the stock chest, resin content is the highest on the carbon fiber, along with the walking of carbon fiber tow, oil can flow along the carbon fiber tow, break away from the carbon fiber tow even, cause the axial resin of carbon fiber tow inhomogeneous, and in the guiding process little silk bundle carbon fiber easily with the leading wheel slippage, influence the direction quality.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a method for small-tow carbon fiber prepreg, which enables the small-tow carbon fiber prepreg to be uniform and facilitates the guiding of the small-tow carbon fiber prepreg.

The technical scheme adopted by the invention for solving the technical problems is as follows: a method of small tow carbon fiber prepreg comprising the steps of:

s1, mounting the small-tow carbon fiber prepreg device at a discharge hole of the small-tow carbon fibers;

s2, winding small-tow carbon fibers in a cavity of the prepreg device, wherein the tows penetrate through a storage tank of the prepreg device, and the other end of the carbon fibers is fixed on a tractor;

s3, adding the prepared resin into the storage tank in the S2, impregnating the tows with the resin, and pulling out the tows through a roller drum and an extrusion rubber roller to finish the prepreg of the small-tow carbon fibers; wherein the content of the first and second substances,

the small tow carbon fiber prepreg device in the S1 comprises a shell, a height adjusting structure, a material injection structure, an observation window, a groove and a plurality of guide structures; the bottom end of the shell is provided with the groove; the side wall of the shell is provided with the observation window for observing the liquid level of the resin; the height adjusting structure for adjusting the height of the guide structure is arranged in the shell; a plurality of guide structures for guiding the small-tow carbon fibers are arranged in the height adjusting structure; and the material injection structure for injecting resin is arranged between the shell and the height adjusting structure.

Specifically, the height adjusting structure comprises a storage sleeve and a height adjusting rod, the storage sleeve is connected with the shell in a sliding mode, the height adjusting rod is connected with the shell in a penetrating mode and is connected with the storage sleeve in a rotating mode, and the height adjusting rod is connected with the storage sleeve in a threaded mode.

Specifically, the height adjusting rod is of an L-shaped structure, and the end part of one end, deviating from the accommodating sleeve, of the height adjusting rod is of a hemispherical structure.

Specifically, the guiding structure comprises a plurality of guide wheels, a baffle, two through holes, an air bag, an elastic sheet, a fixed sleeve, a first rotating shaft, a stirring rod, a second rotating shaft, a check valve, a transmission wheel and a belt, the guide wheels for guiding the small tow carbon fibers are rotatably connected with the containing sleeve through the second rotating shaft, the diameter of the middle part of each guide wheel is gradually reduced from two ends to the middle, the two ends of each guide wheel are symmetrically provided with the two disc-shaped baffles, the air bag is abutted on the baffles, a plurality of storage cavities are arranged in the air bag, the other end of the air bag is abutted with four elastic sheets with S-shaped sections along the axial lead direction of the guide wheels, the check valves communicated with the air bag are arranged on the elastic sheets and the baffle, and the check valves on the baffle and the elastic sheets are opposite in direction, the section of the elastic sheet, which is vertical to the axial direction of the guide wheel, is in a fan shape; the two through holes vertically penetrate through the storage sleeve, and the two through holes are communicated with each other.

Specifically, the material injection structure comprises a material injection pipe, an end cover, a containing chamber, a piston, a rubber air cushion, a storage chamber, a first flow guide hole, a second flow guide hole, a first rotating shaft, a fixing sleeve, a stirring rod, a second rotating shaft, a one-way valve, a driving wheel and a belt, wherein the containing chamber for storing resin is arranged inside the containing sleeve, the material injection pipe is fixed at the top end of the containing sleeve, the cross section of the material injection pipe is in a regular octagonal structure, the end cover is in threaded connection with the material injection pipe, the storage chamber for storing resin is arranged inside the shell, the stirring rod is arranged inside the storage chamber, the piston penetrates through the storage chamber and extends into the containing chamber, the storage chamber is in sliding connection with the containing sleeve, a plurality of second flow guide holes which are communicated with the piston are arranged inside the piston, a plurality of first flow guide holes which are matched with the second flow guide holes are arranged at the bottom end of the containing sleeve, the bottom of piston is equipped with and is used for the drive the piston have hold the cavity the rubber air cushion, first pivot through connection in fixed cover with accomodate the cover, fixed cover passes through first pivot with accomodate and rotate between the cover and be connected, fixed sheatheeing in the circumference array and be equipped with a plurality ofly be used for stirring resin the puddler, the tip of first pivot and wherein three the end fixing of second pivot has the drive wheel, the belt twine in the drive wheel.

The invention has the beneficial effects that:

(1) the small-tow carbon fiber prepreg method is characterized in that a plurality of guide structures are arranged on a height adjusting structure, small-tow carbon fibers are soaked in prepreg from the inside of a material injection structure and then wound on the guide structures in an S shape, the direction of the small-tow carbon fibers is changed by the guide structures, the small-tow carbon fibers are positioned on the bottom surface and guided to the top surface, resin on the small-tow carbon fibers is effectively prevented from dropping too quickly, the prepreg time of carbon fiber yarns is prolonged, meanwhile, the friction force between the guide structures and the small-tow carbon fibers is increased by the aid of the guide structures, the small-tow carbon fibers are limited, the small-tow carbon fibers are prevented from slipping off from the guide structures, the guide quality of the guide structures is greatly improved, and meanwhile, the carbon fiber yarns are blown by gas while the guide structures rotate, so that the resin is more uniformly coated on the small-tow carbon fibers, and then improved the preimpregnation material quality of little tow carbon fiber, the effectual adhesion that prevents between little tow carbon fiber and the leading wheel.

(2) According to the small-tow carbon fiber prepreg preparation method, the liquid level of small-tow carbon fibers is constant due to the use of the material injection structure, so that the prepreg is more convenient and rapid, meanwhile, the material injection structure is driven by the guide structure to stir resin in the material injection structure, so that the resin in the material injection structure is effectively prevented from precipitating, the prepreg quality of the resin is improved, meanwhile, the carbon fibers are more flexible when passing through the guide structure due to the use of the material injection structure, and meanwhile, the guide structure is cooled, so that the guide effect is better.

Drawings

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

FIG. 1 is a flow chart of the method of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is an enlarged view of portion A of FIG. 2;

FIG. 4 is a schematic view of a connection structure between the receiving sleeve and the guiding structure shown in FIG. 3;

FIG. 5 is an enlarged view of the portion B shown in FIG. 4;

FIG. 6 is a schematic structural view of the guide structure shown in FIG. 5;

FIG. 7 is a schematic view of a connection structure between the receiving sleeve and the first rotating shaft shown in FIG. 4;

FIG. 8 is an enlarged view of section C of FIG. 4;

fig. 9 is a right side view of the overall structure shown in fig. 4.

In the figure: 1. shell, 2, height control structure, 21, accomodate the cover, 22, height control pole, 3, annotate the material structure, 31, annotate the material pipe, 32, the end cover, 33, the collecting chamber, 34, the piston, 35, the rubber air cushion, 36, the locker room, 37, first water conservancy diversion hole, 38, second water conservancy diversion hole, 39, first pivot, 39a, fixed cover, 39b, the puddler, 39c, the drive wheel, 39d, the belt, 4, the observation window, 5, the recess, 6, guide structure, 61, the leading wheel, 62, the baffle, 63, the through-hole, 64, the gasbag, 65, the shell fragment, 67, the second pivot, 68, the check valve.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 9, the method for preparing a small-tow carbon fiber prepreg according to the present invention includes the following steps:

the small-tow carbon fiber prepreg device in the S1 comprises a shell 1, a height adjusting structure 2, a material injection structure 3, an observation window 4, a groove 5 and a plurality of guide structures 6; the bottom end of the shell 1 is provided with the groove 5; the side wall of the shell 1 is provided with the observation window 4 for observing the liquid level of the resin; the height adjusting structure 2 for adjusting the height of the guide structure 6 is arranged in the shell 1; a plurality of guide structures 6 for guiding small-tow carbon fibers are arranged inside the height adjusting structure 2; and the material injection structure 3 for injecting resin is arranged between the shell 1 and the height adjusting structure 2.

Specifically, the height adjusting structure 2 comprises a receiving sleeve 21 and a height adjusting rod 22, the receiving sleeve 21 is slidably connected with the housing 1, the height adjusting rod 22 is connected with the housing 1 and the receiving sleeve 21 in a penetrating manner, the height adjusting rod 22 is rotatably connected with the housing 1, and the height adjusting rod 22 is in threaded connection with the receiving sleeve 21; when the small tow carbon fibers need to be wound on the plurality of guide structures 6, the height adjusting rod 22 is screwed, the height adjusting rod 22 drives the accommodating sleeve 21 and the shell 1 to slide in a threaded mode, so that the guide structures 6 are exposed, the small tow carbon fibers are wound on the guide structures 6 conveniently, and meanwhile the guide structures 6 are convenient to overhaul and maintain.

Specifically, the height adjusting rod 22 is an L-shaped structure, and the end of the height adjusting rod 22, which is away from one end of the accommodating sleeve 21, is of a hemispherical structure; the height adjusting rod 22 is of an L-shaped structure, so that the height adjusting rod 22 can be screwed more easily, and the use comfort is greatly improved.

Specifically, each guide structure 6 comprises a plurality of guide wheels 61, a baffle plate 62, two through holes 63, an air bag 64, a spring sheet 65, a fixed sleeve 39a, a first rotating shaft 39, a stirring rod 39b, a second rotating shaft 67, a one-way valve 68, a transmission wheel 39c and a belt 39d, the plurality of guide wheels 61 for guiding the small tow carbon fibers are rotatably connected with the accommodating sleeve 21 through the second rotating shaft 67, the diameter of the middle part of each guide wheel 61 is gradually reduced from two ends to the middle, the two disc-shaped baffle plates 62 are symmetrically arranged at two ends of each guide wheel 61, the air bag 64 is abutted on each baffle plate 62, a plurality of storage cavities are arranged in each air bag 64, the four spring sheets 65 with S-shaped cross sections along the axial lead direction of the guide wheels 61 are abutted on the other ends of the air bag 64, the spring sheets 65 and the baffle plates 62 are both provided with the one-way valves 68 communicated with the air bags 64, the direction of the baffle plate 62 is opposite to that of the one-way valve 68 on the elastic sheet 65, and the section of the elastic sheet 65, which is vertical to the axial direction of the guide wheel 61, is a sector; the two through holes 63 vertically penetrate through the accommodating sleeve 21, and the two through holes 63 are mutually penetrated; when the containing sleeve 21 slides away from the shell 1, the guide wheels 61 are completely exposed out of the shell 1, small tow carbon fibers are wound on the guide wheels 61 in an S shape, in the process of pre-impregnating the small tow carbon fibers, the small tow carbon fibers drive the guide wheels 61 to drive the second rotating shaft 67 and the containing sleeve 21 to rotate, the part of the small tow carbon fibers, which is originally positioned at the bottom end, is turned to the top end through the guide wheels 61, so that the phenomenon that resin falls off from the small tow carbon fibers too fast is effectively avoided, the resin is better immersed into the small tow carbon fibers, the quality of the pre-impregnating material is greatly improved, meanwhile, in the rotating process of the guide wheels 61, the small tow carbon fibers abut against the elastic sheets 65 of the S-shaped structure, the elastic sheets 65 are extruded and deformed, and the air bags 64 can be deformed by the deformation force of the elastic sheets 65, the elastic sheet 65 props against the air bag 64, the air bag 64 deforms, so that the air in the cavity of the air bag 64 corresponding to the elastic sheet 65 is discharged from the check valve 68 on the elastic sheet 65 to blow the small tow carbon fibers, resin is better coated on the small tow carbon fibers, the quality of the prepreg of the small tow carbon fibers is further improved, meanwhile, the air bag 64 is convenient to use and achieve the reset effect of the elastic sheet 65, the reset effect of the elastic sheet 65 is better, meanwhile, the diameter of the middle part of the guide wheel 61 is gradually reduced from two ends to the middle, and the elastic sheet 65 is matched with the guide wheel 61 to effectively prevent the small tow carbon fibers from slipping.

Specifically, the injecting structure 3 includes an injecting tube 31, an end cap 32, a receiving chamber 33, a piston 34, a rubber air cushion 35, a storage chamber 36, a first guiding hole 37, a second guiding hole 38, a first rotating shaft 39, a fixing sleeve 39a, a stirring rod 39b, a second rotating shaft 67, a check valve 68, a driving wheel 39c and a belt 39d, the receiving chamber 33 for storing resin is disposed inside the receiving sleeve 21, the injecting tube 31 is fixed on the top end of the receiving sleeve 21, the end cap 32 with a regular octagonal cross section is in threaded connection with the injecting tube 31, the storage chamber 36 for storing resin is disposed inside the housing 1, the stirring rod 39b is disposed inside the storage chamber 36, the piston 34 penetrates through the storage chamber 36 and extends into the receiving chamber 33, and the piston 34 is in sliding connection with the receiving sleeve 21, a plurality of second diversion holes 38 communicated with the storage chamber 36 are formed in the piston 34, a plurality of first diversion holes 37 matched with the second diversion holes 38 are formed in the bottom end of the interior of the storage sleeve 21, the rubber air cushion 35 with a containing cavity for driving the piston 34 is formed in the bottom end of the piston 34, the first rotating shaft 39 is connected with the fixed sleeve 39a and the storage sleeve 21 in a penetrating manner, the fixed sleeve 39a is rotatably connected with the storage sleeve 21 through the first rotating shaft 39, a plurality of stirring rods 39b for stirring resin are arranged on the fixed sleeve 39a in a circumferential array manner, the driving wheels 39c are fixed on the end portions of the first rotating shaft 39 and the end portions of three second rotating shafts 67, and the belts 39d are wound on the driving wheels 39 c; firstly screwing the end cover 32, adding resin into the storage chamber 33 through the material injection pipe 31, when the liquid level of the resin in the storage chamber 36 becomes low and the resin does not collide with the rubber air cushion 35, under the action of the pressure in the storage chamber 33 and the self weight of the rubber air cushion 35, the piston 34 and the storage sleeve 21 slide to enable the first diversion hole 37 and the second diversion hole 38 to be communicated, so that the resin in the storage chamber 33 enters the storage chamber 36, the resin in the storage chamber 36 is timely supplemented, the liquid level of the resin in the storage chamber 36 is always constant, the prepreg effect on the small-tow carbon fibers is better, meanwhile, the use of the material injection structure 3 enables the guiding effect of the small-tow carbon fibers to be better, and the diameter of the middle part of the guide wheel 61 is gradually reduced from two ends to the middle, and then cooperate the shell fragment 65 use the effectual small tow carbon fiber that prevents with leading wheel 61 slippage, increased simultaneously the frictional force between leading wheel 61 and the small tow carbon fiber, and then make sufficient power cooperation drive wheel 39c drive first pivot 39 rotates, first pivot 39 rotates the drive fixed cover 39a rotates, fixed cover 39a drives puddler 39b rotates, and then the effectual resin that prevents deposits, and then makes the result of use of resin better.

When the small-tow carbon fiber winding machine is used, firstly, the end cover 32 is screwed, resin of small-tow carbon fiber prepreg is added into the containing chamber 33 through the material injection pipe 31, when small-tow carbon fibers are required to be wound on the plurality of guide structures 6, the height adjusting rod 22 is rotated, the height adjusting rod 22 is rotatably connected with the shell 1, the height adjusting rod 22 is in threaded connection with the containing sleeve 21, the height adjusting rod 22 drives the containing sleeve 21 to slide with the shell 1, so that the guide structures 6 are exposed, when the containing sleeve 21 moves upwards, the guide wheels 61 are completely exposed out of the shell 1, the small-tow carbon fibers are wound on the plurality of guide wheels 61 in an S shape, enter from the left through hole 63 and penetrate out of the top through hole 63, and the installation process of the small-; in the process of prepreg of small-tow carbon fibers, for 12K small tows, the small-tow carbon fibers can drive the guide wheel 61 to rotate in the motion process, the guide wheel 61 rotates to drive the second rotating shaft 67 and the containing sleeve 21 to rotate, the part of the small-tow carbon fibers originally positioned at the bottom end is turned to the top end through the guide wheel 61, the phenomenon that resin falls off from the small-tow carbon fibers too fast is effectively avoided, the resin is better soaked into the small-tow carbon fibers, the prepreg quality is greatly improved, meanwhile, in the rotation process of the guide wheel 61, the small-tow carbon fibers abut against the elastic sheet 65 of the S-shaped structure, the elastic sheet 65 is extruded and deformed, the air bag 64 can be deformed by the force of deformation of the elastic sheet 65, the elastic sheet 65 abuts against the air bag 64, the air bag 64 is deformed, and the air inside of the containing cavity inside the air bag 64 corresponding to the elastic sheet 65 is discharged from the one-way valve 68, blowing the small-tow carbon fibers to enable the resin to be better coated on the small-tow carbon fibers, effectively preventing the small-tow carbon fibers from being adhered to the guide wheel 61, further improving the prepreg quality of the small-tow carbon fibers, simultaneously enabling the elastic sheet 65 to reset conveniently by using the air bag 64, enabling the resetting effect of the elastic sheet 65 to be better, simultaneously enabling the diameter of the middle part of the guide wheel 61 to be gradually reduced from two ends to the middle, further being matched with the elastic sheet 65 to effectively prevent the small-tow carbon fibers from slipping off from the guide wheel 61 and colliding intermittently, increasing the friction force between the guide wheel 61 and the small-tow carbon fibers, further having enough power to match the driving wheel 39c to drive the first rotating shaft 39 to rotate, driving the fixing sleeve 39a to rotate, driving the stirring rod 39a to rotate by the fixing sleeve 39a, further effectively preventing the resin from precipitating, and further enabling the use effect of the resin to be better, when the resin liquid level of the inside of locker room 36 step down, when the resin is not contradicted to rubber air cushion 35, under the effect of the pressure of the inside of storage chamber 33 and rubber air cushion 35's dead weight, slide between piston 34 and the storage sleeve 21, make first water conservancy diversion hole 37 and second water conservancy diversion hole 38 switch on, and then make the inside resin of storage chamber 33 get into locker room 36's inside, in time supply the inside resin of locker room 36, and then make the liquid level of the inside resin of locker room 36 invariable all the time, and then make the prepreg effect to little silk bundle carbon fiber better, the use of annotating material structure 3 simultaneously makes the direction effect of little silk bundle carbon fiber better.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the embodiments and descriptions given above are only illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A small-tow carbon fiber prepreg preparation method is characterized by comprising the following steps: the method comprises the following steps:

the small-tow carbon fiber prepreg device in the S1 comprises a shell (1), a height adjusting structure (2), a material injection structure (3), an observation window (4), a groove (5) and a plurality of guide structures (6); the bottom end of the shell (1) is provided with the groove (5); the side wall of the shell (1) is provided with the observation window (4) for observing the liquid level of the resin; the height adjusting structure (2) for adjusting the height of the guide structure (6) is arranged in the shell (1); a plurality of guide structures (6) for guiding small-tow carbon fibers are arranged inside the height adjusting structure (2); the material injection structure (3) for injecting resin is arranged between the shell (1) and the height adjusting structure (2);

the height adjusting structure (2) comprises a receiving sleeve (21) and a height adjusting rod (22), the receiving sleeve (21) is connected with the shell (1) in a sliding mode, the height adjusting rod (22) is connected with the shell (1) and the receiving sleeve (21) in a penetrating mode, the height adjusting rod (22) is connected with the shell (1) in a rotating mode, and the height adjusting rod (22) is connected with the receiving sleeve (21) in a threaded mode;

the height adjusting rod (22) is of an L-shaped structure, and the end part of one end, deviating from the containing sleeve (21), of the height adjusting rod (22) is of a hemispheroid structure;

guide structure (6) all include a plurality of leading wheel (61), baffle (62), two through-holes (63), gasbag (64), shell fragment (65), fixed cover (39a), first pivot (39), puddler (39b), second pivot (67), check valve (68), drive wheel (39c) and belt (39d), and a plurality of being used for leading little tow carbon fiber leading wheel (61) pass through second pivot (67) with it is connected to rotate between the cover (21) to accomodate, the diameter at the middle part of leading wheel (61) reduces from both ends to the centre gradually, the bilateral symmetry of leading wheel (61) is equipped with two discs baffle (62), conflict on baffle (62) gasbag (64), the inside of gasbag (64) is equipped with a plurality of storage cavity, there are four edges in the other end of gasbag (64) the cross-section of leading wheel (61) axial lead direction is the S-shaped shell fragment (65) The elastic sheet (65) and the baffle (62) are both provided with one-way valves (68) communicated with the air bag (64), the direction of the baffle (62) is opposite to that of the one-way valves (68) on the elastic sheet (65), and the section of the elastic sheet (65) perpendicular to the axial direction of the guide wheel (61) is in a fan shape; the two through holes (63) vertically penetrate through the containing sleeve (21), and the two through holes (63) are mutually penetrated.

2. The method of prepreg of small tow carbon fiber according to claim 1, wherein: annotate material structure (3) including annotating material pipe (31), end cover (32), receiver (33), piston (34), rubber air cushion (35), locker room (36), first water conservancy diversion hole (37), second water conservancy diversion hole (38), the inside of receiver (21) is equipped with receiver (33) for storing the resin, annotate material pipe (31) and be fixed in the top of receiver (21), the cross-section is regular octagon structure end cover (32) with annotate threaded connection between material pipe (31), the inside of shell (1) is equipped with locker room (36) for storing the resin, puddler (39b) are located the inside of locker room (36), piston (34) run through in locker room (36) extend to the inside of receiver (33), sliding connection between piston (34) and receiver (21), the inside of the piston (34) is provided with a plurality of second diversion holes (38) communicated with the storage chamber (36), the bottom end of the inside of the storage sleeve (21) is provided with a plurality of first diversion holes (37) matched with the second diversion holes (38), the bottom end of the piston (34) is provided with the rubber air cushion (35) with an accommodating cavity for driving the piston (34), the first rotating shaft (39) is connected with the fixed sleeve (39a) and the storage sleeve (21) in a penetrating way, the fixed sleeve (39a) is connected with the storage sleeve (21) in a rotating way through the first rotating shaft (39), the fixed sleeve (39a) is provided with a plurality of stirring rods (39b) used for stirring resin in a circumferential array, and the end parts of the first rotating shaft (39) and the end parts of three second rotating shafts (67) are fixed with the driving wheels (39c), the belt (39d) is wound around the transmission wheel (39 c).