CN113021720A

CN113021720A - Short fiber jet orientation forming process

Info

Publication number: CN113021720A
Application number: CN202110247286.3A
Authority: CN
Inventors: 羊尚强; 曹勇; 谢佑南; 陈印; 江智钰; 何敬龙
Original assignee: Shenzhen Hfc Shielding Products Co ltd
Current assignee: Shenzhen Hfc Shielding Products Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-06-25
Anticipated expiration: 2041-03-05
Also published as: CN113021720B

Abstract

The application relates to a short fiber jet orientation forming process, which belongs to the technical field of short fiber forming processes and comprises the following steps: s1: preparing a semi-crosslinked carrier; s2: installing a semi-crosslinked carrier; s3: starting a short fiber jet orientation device, jetting short fibers to a semi-crosslinking carrier for directional shaping, and forming a product surface with the area of 150 x 150 mm; s4: and deeply curing the semi-crosslinked carrier carrying the short fibers for 20 min. In order to realize the uniform and ordered orientation of the short carbon fibers without increasing the cost, the application provides a short fiber jet orientation forming process, which can improve the forming quality of short fiber products.

Description

Short fiber jet orientation forming process

Technical Field

The application relates to the technical field of short fiber forming processes, in particular to a short fiber jet orientation forming process.

Background

With the rapid development of networks, various electronic products are developed towards miniaturization, refinement and high power, and the integration density of transistors is greatly increased. The great increase of electronic integration means that more heat is generated by electronic components packaged in the circuit board, and if heat is not conducted out in time, the heat in electronic products can be rapidly accumulated, so that the working temperature of the electronic components is increased, and the normal work of equipment is influenced. It is conventional practice to use thermal spacers to rapidly transfer heat from a heat source to a heat sink, and thermal spacers are typically highly filled to increase thermal conductivity. In order to improve the thermal conductivity of the heat conduction gasket, some manufacturers adopt fibrous or flaky fillers with ultra-high thermal conductivity coefficients, and obtain an ultra-high thermal conduction effect in a certain direction in an orientation mode.

At present, carbon fibers are ordered in a directional mode in two main modes, the first mode is that the carbon fibers are ordered by utilizing a strong magnetic field, but the ordering mode needs a magnetic field intensity of more than 5T, expensive equipment needs to be purchased by the strong magnetic field, the production efficiency is low, large-scale production cannot be realized, and adverse effects on the surrounding environment can be generated; the second sorting method is to use a common screw extruder, the sorting mode mainly uses the shearing force of the screw to realize the directional sorting of the carbon fibers, but the sorting has larger requirements on the viscosity and the hardness of the prepared materials, and in addition, the flow speeds of the prepared materials containing the carbon fibers in an extrusion flow channel are not consistent, so that the carbon fiber orientation is not completely consistent, and the stability of the heat conductivity of the product is poor.

For the related technologies, the inventor considers that the requirements on equipment are high, the input cost is high and the process is complicated according to the current production mode.

Disclosure of Invention

In order to realize uniform and ordered orientation of short fibers without increasing the cost, the application provides a short fiber jet orientation forming process, which can improve the forming quality of short fiber products.

The application provides a short fiber jet orientation forming process, which adopts the following technical scheme:

a short fiber jet orientation forming process comprises the following steps:

s1: preparing a semi-crosslinked carrier;

s2: installing a semi-crosslinked carrier;

s3: starting a short fiber jet orientation device, jetting short fibers to a semi-crosslinking carrier for directional shaping, and forming a product surface with the area of 150 x 150 mm;

s4: and deeply curing the semi-crosslinked carrier carrying the short fibers for 20 min.

By adopting the technical scheme, the short fiber jet orientation device can be utilized to limit the meshes of the front end discharge nozzle, so that the short fiber jet state is ensured to move along the length direction of the short fiber, the carrier corresponding to the jet nozzle is semi-crosslinked resin, the short fiber can vertically penetrate into the carrier, and the state vertical to the horizontal direction is kept, and the short fiber orientation effect is achieved.

The application also provides a short fiber jet orientation device, which adopts the following technical scheme:

a short fiber jet orientation device comprising: the dispersion box and the forming box are fixedly connected, the dispersion box is arranged above the forming box and below the forming box, the dispersion box is communicated with the forming box, a filtering and shaping piece is horizontally arranged in a communication space between the dispersion box and the forming box, a semi-crosslinking carrier is horizontally arranged in the forming box, an air blowing assembly is communicated with the dispersion box and used for spraying short fibers and forming the short fibers onto the semi-crosslinking carrier.

Through adopting above-mentioned technical scheme, the short fiber can be when spouting out, can be in dispersion case department through the orientation that carries on of air blast subassembly and filtration fixed mould piece to make the short fiber enter into the location shaping of the semi-crosslinked carrier department in the shaping case, the state when can effectively guarantee that the short fiber spouts out is along the length direction removal of short fiber, the carrier that the injection nozzle corresponds is semi-crosslinked state resin, guarantee that the short fiber can wear into the carrier perpendicularly, and keep with the state that the horizontal direction is perpendicular, reach the effect of short fiber orientation.

Preferably, a mounting ring is installed at a communication position of the air blowing assembly and the dispersion box, an air guide pipe is connected to the bottom of the mounting ring, an outlet end of the air guide pipe points to the filtering and shaping piece, and a wind power adjusting assembly used for adjusting the size of an opening of the mounting ring is arranged on the mounting ring.

By adopting the technical scheme, the air outlet quantity and the air outlet speed of the air blowing component can be adjusted through the mounting ring, the air guide pipe and the wind power adjusting component, the effect of adjusting the air quantity is better achieved, the short fibers can be effectively guaranteed to move along the length direction of the short fibers according to the requirement when being sprayed out, and the effect of orientation of the short fibers is achieved.

Preferably, the wind power adjusting assembly comprises: the top ring strip is fixed on the inner wall of the mounting ring; the top of the hinged plates is hinged with the inner wall of the top ring strip; the sliding groove is vertically arranged on the inner wall of the mounting ring; the sliding block is connected to the sliding groove in a sliding mode; the telescopic plate is hinged with the hinge plate at one end and hinged with the sliding block at the other end; and the plate body adjusting part is arranged on the inner wall of the mounting ring and used for driving the hinged plates to move from one side of the mounting ring close to the ring wall to the middle space of the ring body of the mounting ring, wherein the plate surfaces of the hinged plates are curved surfaces, and the hinged plates are adjacent to each other and connected with a soft plate.

Through adopting above-mentioned technical scheme, adjust the drive through the plate body regulating part among the wind-force adjusting part, drive the articulated slab and be close to annular wall one side by the collar and carry out the displacement to collar ring body middle part space to can adjust the air output and the air-out speed of blast air subassembly, reach the effect of adjusting the amount of wind betterly, can effectively guarantee according to the demand that the state when short-staple sprays out is along the length direction removal of short-staple, reach the effect of short-staple orientation.

Preferably, the plate body adjusting portion includes: the threaded hole penetrates through the side wall of the mounting ring to be formed; the thread bar is in threaded connection with the threaded hole; the plate groove is formed along the extending direction of the hinged plate and is positioned on one side of the hinged plate close to the threaded hole; and the sliding sheet is connected in the plate groove in a sliding manner, wherein the end part of the thread strip is hinged with the sliding sheet.

Through adopting above-mentioned technical scheme, rotate through the screw thread strip in the plate body regulating part, rely on the structure of gleitbretter, chase for the wrench movement of screw thread strip can drive the articulated slab, and the air output and the air-out speed of blast air subassembly can be adjusted in the swing of articulated slab, reach the effect of adjusting the amount of wind betterly, can effectively guarantee according to the demand that the state when short-staple sprays out is along the length direction removal of short-staple, reaches the effect of short-staple orientation.

Preferably, the lateral wall of articulated slab both sides all is seted up flutedly, the channel has been seted up to the diapire and the roof of recess, the sliding block is all installed to the top and the bottom of soft board, the sliding block with channel looks adaptation, the soft board inserts in the recess, and with the channel slides mutually and is connected, install reset spring in the channel, reset spring's one end with the lateral wall of sliding block is fixed mutually, the other end with the inner wall of channel is fixed mutually.

Through adopting above-mentioned technical scheme, through the cooperation between soft board, the recess, rely on channel and sliding block, reset spring's cooperation structure again for the soft board can be when the articulated slab swings, can form a "wind outlet body" that links between the polylith articulated slab, can lead and control the amount of wind to the air-out betterly, can effectively guarantee according to the demand that the state when short-staple sprays out is along the length direction removal of short-staple, reach the effect of short-staple orientation.

Preferably, the dispersion box is a rectangular box body, a sleeve ring is sleeved on the side wall of the pipe body of the output end of the air guide pipe, mounting blocks are symmetrically mounted at symmetrical inner wall positions of the dispersion box, a straight rod and a screw rod are fixed between the two symmetrical mounting blocks in parallel, displacement blocks are arranged between the two symmetrical mounting blocks, block parts of the displacement blocks are connected with the straight rod in a sliding mode and in threaded connection with the screw rod respectively, a power part is mounted on the mounting blocks and used for driving the screw rod to rotate so that the displacement blocks can displace along the extending direction of the straight rod, and the side wall of each displacement block is connected with the sleeve ring for setting.

Through adopting above-mentioned technical scheme, rotate through power spare drive screw, make the displacement piece of installing between two installation pieces can carry out the displacement along the extending direction of straight-bar, thereby drive the lantern ring and carry out the displacement, make the guide duct that is connected with the lantern ring can remove thereupon, can control the direction of air-out better, can be according to the demand, and the state when guaranteeing that short-staple sprays out is along the length direction removal of short-staple, can carry out an orientation to the shaping position of short-staple simultaneously, reach the effect of short-staple orientation.

Preferably, the dispersion case is provided with the cross slot has been seted up to the both sides lateral wall level of installation piece, the installation piece is in slide in the cross slot, two one of them internal rotation of cross slot is connected with the threaded rod, wherein another internal fixation has the guide bar, both sides the installation piece respectively with threaded rod looks threaded connection, with the guide bar looks slide and be connected, wherein, the inner wall of dispersion case is provided with the driving piece, the driving piece is used for the drive the threaded rod rotates so that the installation piece can along the extending direction of guide bar carries out the displacement.

Through adopting above-mentioned technical scheme, rotate through driving piece drive threaded rod, make the installation piece of connection in the cross slot that slides can carry out the displacement along the extending direction of cross slot, thereby drive the displacement piece that is connected with the lantern ring and carry out the displacement, make the guide duct that is connected with the lantern ring can remove thereupon, can control the direction of air-out better, can be according to the demand, and the state when guaranteeing that short-staple sprays out is along the length direction removal of short-staple, can carry out an orientation to the shaping position of short-staple simultaneously, reach the effect of short-staple orientation.

Preferably, the wave folding hose is assembled at the output end of the air guide pipe, a driving ring is sleeved on the side wall of a pipe body at one end, away from the air guide pipe, of the wave folding hose, a retractable member is installed at the bottom of the sleeve ring, the output end of the retractable member is assembled with the top of the driving ring, a telescopic pipe is installed at the top of the driving ring, and one end, away from the driving ring, of the telescopic pipe is installed at the bottom of the sleeve ring.

Through adopting above-mentioned technical scheme, through the folding hose of wave and drive ring, receive and release the piece, the cooperation structure of flexible pipe, can make the folding hose of wave carry out the ascending displacement of vertical side, reach and adjust the air outlet to the distance of filtering between the fixed part, thereby can control the direction of air-out and the intensity of air-out better, can be according to the demand, and the state when guaranteeing that short-staple sprays out is along the length direction removal of short-staple, can carry out an orientation to the shaping position of short-staple simultaneously, reach the effect of short-staple orientation.

Preferably, the semi-crosslinked carrier is connected with the forming box in a sliding manner, and a lifting component for driving the semi-crosslinked carrier to move in the vertical direction is mounted on the inner wall of the forming box.

Through adopting above-mentioned technical scheme, can drive half cross-linked carrier through the lifting unit and carry out the ascending displacement of vertical direction to can adjust half cross-linked carrier to filter the distance between the fixed profile piece, realize the orientation of carbon fiber through the distance of air outlet and viscous material.

In summary, the present application includes at least one of the following beneficial technical effects:

1. this application can be through spouting orientation device, wind-force adjusting part and some drive structure, and the state when guaranteeing that the short-staple sprays out is along length direction removal to keep the state perpendicular with the horizontal direction, reach the effect of short-staple orientation.

2. This application can realize the orientation of short-staple through the size of adjusting wind-force, the aperture of air outlet, the distance of air outlet and viscous material.

3. Compared with the prior art, the method has the advantages that the production efficiency can be greatly improved, the realized batch production is simpler, and the method has better cost advantage.

Drawings

Fig. 1 is a schematic overall structure diagram in the embodiment of the present application.

Fig. 2 is a schematic sectional view of the dispersion box and the forming box in a disassembled state in the embodiment of the present application.

Fig. 3 is a partially broken away and partially broken away schematic view of a mounting ring in an embodiment of the present application.

Fig. 4 is a schematic disassembly view of a hinge plate and a soft plate in the embodiment of the application.

Fig. 5 is a sectional view of the dispersion box and the forming box at another angle in the embodiment of the present application.

Fig. 6 is an enlarged view of a in fig. 5.

Description of reference numerals: 1. a dispersion box; 2. forming a box; 3. filtering the fixed profile; 4. a semi-crosslinked support; 5. a blower assembly; 11. a mounting ring; 12. an air guide pipe; 131. a top ring; 132. a hinge plate; 133. a chute; 134. a slider; 135. sheathing; 136. a core board; 137. a tension spring; 1381. a threaded hole; 1382. a threaded strip; 1383. a plate groove; 1384. sliding blades; 14. a soft board; 141. a groove; 142. a channel; 143. a slider; 144. a return spring; 151. a collar; 152. mounting blocks; 153. a straight rod; 154. a screw; 155. a displacement block; 156. a power member; 161. a transverse groove; 162. a threaded rod; 163. a guide bar; 164. a drive member; 171. the hose is folded in a wave manner; 172. a drive ring; 173. a retractable member; 174. a sleeve; 175. a core tube; 21. installing a frame; 22. a lifting block; 23. a vertical groove; 24. a vertical threaded rod; 25. a lifting member.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a short fiber jet orientation forming process.

Referring to fig. 2, the method includes: s1: a semi-crosslinked support 4 was prepared.

S2: the semi-crosslinked carrier 4 is mounted, and the semi-crosslinked carrier 4 is mounted on the mounting frame 21.

S3: and starting a short fiber spraying orientation device, spraying short fibers to the semi-crosslinked carrier 4, and performing oriented shaping to form a product surface with the area of 150 x 150 mm.

S31: install the short-staple on the equipment that has the injection function, have the blast air function in the charging bucket, can carry out preliminary dispersion to the short-staple, prevent the reunion, have the filter screen more than two-layer among the injection apparatus, can further retrain the injection state of short-staple, guarantee that short-staple ejection of compact mode is that length is unanimous with the moving direction.

S32: the distance between the semi-crosslinked carrier 4 and the filtering shaping piece 3 is well adjusted under the spray nozzle, and the short fiber is sprayed out and then pricked into the carrier for shaping.

S33: and performing spraying on the whole plane according to the set moving track until the product area is not less than 150 x 150 mm.

S4: the semi-crosslinked carrier 4 carrying the short fibers was deeply cured for 20 min.

S41: and placing the product sprayed with the short fibers into a photocuring device or an oven for further curing, so that the product with fibers sequenced in the thickness direction can be obtained.

Referring to fig. 1 and fig. 2, the present embodiment further discloses a short fiber jet orientation device, which includes a dispersion box 1 and a forming box 2, wherein the dispersion box 1 and the forming box 2 are distributed one above the other in the present embodiment, in other embodiments, the arrangement of the dispersion box 1 and the forming box 2 may be one above the other, or one left to one right, one right to one left, and the like, and the specific arrangement of the two may be adjusted according to the situation on site.

Referring to fig. 1 and 2, a dispersion box 1 and a forming box 2 are fixedly connected by bolts, the dispersion box 1 is communicated with the forming box 2, a filtering shaped part 3 is horizontally arranged in a communication space between the dispersion box 1 and the forming box 2, specifically, the filtering shaped part 3 is a double-layer filter screen, the double-layer filter screen can further restrict the spraying state of short fibers, the short fiber discharging mode is ensured that the length is consistent with the moving direction, an output head of short fiber production equipment is arranged on the side wall of the dispersion box 1, and the output head of the short fiber production equipment can output the short fibers from the production equipment to the inside of the dispersion box 1.

And, referring to fig. 1 and 2, a blowing assembly 5 is installed on the top of the dispersion box 1, specifically, the blowing assembly 5 is a fan, the output direction of the blowing assembly 5 is vertical downward in this embodiment to blow air, so that when the short fibers are ejected from the output head of the short fiber production equipment, the short fibers can be guided toward the filtering fixed-shape member 3, so that the short fibers can pass through the orientation of the filtering fixed-shape member 3, meanwhile, a semi-crosslinked carrier 4 is movably arranged in the forming box 2, and the short fibers passing through the filtering fixed-shape member 3 can be arranged on the semi-crosslinked carrier 4.

Specifically, referring to fig. 1 and 2, a mounting frame 21 is horizontally arranged in a forming box 2, the semi-crosslinked carrier 4 is mounted on the mounting frame 21, a lifting block 22 is fixed on a side wall of the mounting frame 21, a vertical groove 23 is formed in the side wall of the forming box 2, an extending direction of the vertical groove 23 is formed along the vertical direction, the lifting block 22 is matched with the vertical groove 23, the lifting block 22 is connected in a sliding manner in the vertical direction, meanwhile, a vertical threaded rod 24162 is vertically and rotatably connected in the vertical groove 23 on one side of the vertical groove, the lifting block 22 is connected in the vertical groove 23 in a sliding manner, a groove hole matched with the vertical threaded rod 24162 is further formed in a block of the lifting block, and the lifting block 22 is further connected with the vertical threaded rod 24162 in a matching manner.

In addition, referring to fig. 1 and 2, the lifting member 25 is installed in the forming box 2, the lifting member 25 specifically adopts a servo motor, a gear driven structure is installed on the output end of the lifting member 25 and the rod body of the threaded rod 162 in a matching manner, the vertical threaded rod 24162 can be driven to rotate by the driving of the servo motor, and the rotation of the vertical threaded rod 24162 can drive the lifting block 22 to perform vertical displacement, so that the distance between the semi-crosslinked carrier 4 and the filtering and shaping member 3 can be adjusted.

In order to adjust the output quantity of the blowing component 5, the present embodiment specifically adopts a mode of adjusting the size of the air outlet of the blowing component 5 to orient the forming arrangement of the short fibers, and referring to fig. 2 and fig. 3, wherein a mounting ring 11 is installed at the communication position of the blowing component 5 and the dispersion box 1, the top end of the mounting ring 11 is connected with the output end of the blowing component 5, an air guide pipe 12 is connected to the bottom end of the mounting ring 11, and the wind energy of the blowing component 5 can pass through the mounting ring 11 and then be exhausted through the air guide pipe 12.

More specifically, referring to fig. 3 and 4, a top ring 131 is disposed on an inner wall of the mounting ring 11, the top ring 131 is fixed on the inner wall of the mounting ring 11 in a ring shape, a hinge plate 132 is hinged to the inner wall of the top ring 131, the body of the hinge plate 132 is a cambered plate body, a plate groove 1383 is formed in one side of the hinge plate 132 close to the inner wall of the mounting ring 11, a sliding piece 1384 is slidably connected in the plate groove 1383, a threaded hole 1381 is formed through a side wall of the mounting ring 11, a threaded bar 1382 is threadedly connected in the threaded hole 1381, and an end of the threaded bar 1382 is rotatably connected to one side of the sliding piece 1384 close to the mounting ring 11.

Meanwhile, referring to fig. 3 and 4, a sliding groove 133 is vertically formed in the inner wall of the mounting ring 11, a sliding block 134 is connected in the sliding groove 133 in a sliding manner, a sleeve plate 135 is rotatably mounted on the sliding block 134, and a core plate 136 is rotatably connected to the hinged plate 132 away from the hinged end thereof, wherein the sleeve plate 135 is provided with an opening matched with the core plate 136, the sleeve plate 135 and the core plate 136 are sleeved with each other, a telescopic spring 137 is mounted in the core plate 136, and one end of the telescopic spring 137 away from the core plate 136 is mounted at the inner wall position of the sleeve plate 135.

In addition, referring to fig. 3 and 4, in this embodiment, a groove 141 is formed in each of the side walls of the hinge plate 132, a groove 142 extending from the inside to the outside is formed in each of the bottom wall and the top wall of the groove 141, wherein the soft board 14 is installed in the groove 141, specifically, a sliding block 143 is installed at each of the top and the bottom of the soft board 14, the sliding block 143 is fitted to the groove 142, the sliding block 143 is connected to the groove 142 in a sliding manner, so that the soft board 14 can slide in the groove 141, a return spring 144 is installed at the innermost side of the sliding block 143 close to the groove 142, one side of the return spring 144 away from the sliding block 143 is fixed at the inner wall of the groove 142, and the soft board 14 may be a folded wave-shaped plate body made of soft rubber.

On the other hand, referring to fig. 3 and 5, the dispersion tank 1, in this embodiment, may be a rectangular tank, wherein, a lantern ring 151 is sleeved and fixed on one end of the pipe body side wall of the air guide pipe 12 close to the output end thereof, and at the same time, a transverse groove 161 is symmetrically arranged at one symmetrical inner wall position in the dispersion box 1, the mounting blocks 152 are connected in the transverse groove 161 in a sliding way, the number of the mounting blocks 152 is two, the two mounting blocks 152 are positioned on the same horizontal plane, a straight rod 153 is fixed between the two mounting blocks 152, a screw 154 is rotatably connected between the two mounting blocks 152, the screw 154 and the straight rod 153 are arranged in parallel, a displacement block 155 is arranged between the two symmetrical mounting blocks 152, the block body of the displacement block 155 is provided with an orifice matched with the straight rod 153 and the screw 154, so that the displacement block 155 can be slidably connected with the straight rod 153 and rotatably connected with the screw 154.

Referring to fig. 3 and 5, a power member 156 is installed on the top of one of the installation blocks 152, the power member 156 specifically adopts a servo motor in this embodiment, a gear rotating structure is assembled on the output end of the servo motor and the rod body of the screw 154 in a matching manner, the servo motor can drive the screw 154 to rotate, due to the rotation of the screw 154, the displacement block 155 can be displaced between the two installation blocks 152 along the extending direction of the straight rod 153, and meanwhile, the displacement block 155 is fixed to the side wall of the collar 151 through a bolt connection, so that the movement of the displacement block 155 can drive the collar 151 and drive the pipe orifice output end of the air guide pipe 12 to displace.

Meanwhile, in this embodiment, referring to fig. 5 and 6, a threaded rod 162 is rotatably connected in one of the transverse grooves 161, a guide rod 163 is installed in the other transverse groove 161, the threaded rod 162 and the guide rod 163 are respectively connected with the installation blocks 152 in the corresponding transverse grooves 161, specifically, the threaded rod 162 is rotatably connected with one of the installation blocks 152, the guide rod 163 is slidably connected with the other installation block 152, and a driving member 164 is installed at an inner wall position of the dispersion box 1, the driving member 164 in this embodiment may be a servo motor, an output end of the servo motor and a rod body of the threaded rod 162 are also provided with gear rotating structures in a matching manner, due to the rotation of the threaded rod 162, the installation blocks 152 can perform displacement along the extending direction of the transverse grooves 161, meanwhile, the two installation blocks 152 drive displacement blocks 155, and the displacement blocks 155 are connected with the collar 151, so that the movement of the mounting block 152 can drive the collar 151 and the outlet of the duct 12 to move.

On the other hand, referring to fig. 3 and 4, the wave-shaped folding hose 171 is assembled at the output end of the air guide pipe 12, the side wall of the pipe body at one end of the wave-shaped folding hose 171, which is far away from the air guide pipe 12, is sleeved with the driving ring 172, the bottom of the collar 151 is provided with the retraction member 173, specifically, the retraction member 173 can adopt a hydraulic cylinder, the output end of the retraction member 173 is assembled with the top of the driving ring 172, wherein the bottom of the collar 151 is provided with the sleeve 174, the top of the driving ring 172 is provided with the core pipe 175, the bottom of the sleeve 174 is provided with an opening matched with the core pipe 175, the sleeve 174 and the core pipe 175 are matched to be slidably sleeved, meanwhile, the top of the core pipe 175 is provided with the tension.

Meanwhile, the embodiment of the application also discloses a preparation method of the semi-crosslinked carrier.

A method of preparing a semi-crosslinked support comprising: 1kg of isooctyl acrylate, 0.15kg of benzoin, 0.17kg of benzil and 7.4kg of acrylated epoxy resin are mixed and stirred, and photo-thermal curing is carried out for 10min to obtain the semi-crosslinked carrier 4 which is in a flat state and does not flow.

The above are all preferred embodiments of the present application, and the present embodiment is only explained for the present application, and the protection scope of the present application is not limited by this, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A short fiber jet orientation forming process is characterized by comprising the following steps:

s1: preparing a semi-crosslinked carrier (4);

s2: mounting a semi-crosslinked carrier (4);

s3: starting a short fiber jet orientation device, jetting short fibers to a semi-crosslinking carrier (4) for directional shaping, and forming a product surface with the area of 150 x 150 mm;

s4: and deeply curing the semi-crosslinked carrier (4) carrying the short fibers for 20 min.

2. A short fiber jet orientation device applied to the short fiber jet orientation forming process of claim 1, is characterized by comprising the following steps: the device comprises a dispersion box (1) and a forming box (2), wherein the dispersion box (1) and the forming box (2) are fixedly connected, the dispersion box (1) is arranged above the forming box (2) and below the forming box (2), the dispersion box (1) is communicated with the forming box (2), a filtering and shaping piece (3) is horizontally arranged in a communication space between the dispersion box (1) and the forming box (2), a semi-crosslinking carrier (4) is horizontally arranged in the forming box (2), an air blowing component (5) is communicated with the dispersion box (1), and the air blowing component (5) is used for spraying short fibers and forming the short fibers onto the semi-crosslinking carrier (4).

3. Short fiber spraying and orienting device according to claim 2, characterized in that a mounting ring (11) is installed at the communication position of the air blowing assembly (5) and the dispersion box (1), a wind guide pipe (12) is connected to the bottom of the mounting ring (11), the outlet end of the wind guide pipe (12) points to the filtering and shaping piece (3), wherein a wind power adjusting assembly for adjusting the size of the ring opening of the mounting ring (11) is arranged on the mounting ring (11).

4. A staple fiber spray orientation device as claimed in claim 3, wherein the wind adjustment assembly comprises: a top ring strip (131) fixed on the inner wall of the mounting ring (11); a plurality of hinge plates (132) which are vertically arranged and are hinged at the tops of the hinge plates and are arranged on the inner wall of the top ring strip (131); a sliding groove (133) vertically arranged on the inner wall of the mounting ring (11); a sliding block (134) connected at the position of the sliding groove (133) in a sliding way; the expansion plate is hinged with the hinge plate (132) at one end and hinged with the sliding block (134) at the other end; and the plate body adjusting part is arranged on the inner wall of the mounting ring (11) and used for driving the hinge plates (132) to move from one side, close to the ring wall, of the mounting ring (11) to the middle space of the ring body of the mounting ring (11), wherein the plate surfaces of the hinge plates (132) are curved surfaces, and a soft plate (14) is connected between every two adjacent hinge plates (132).

5. A short fiber spraying and orienting device as claimed in claim 4, wherein the plate body adjusting part comprises: a threaded hole (1381) formed through the side wall of the mounting ring (11); a threaded strip (1382) threadedly coupled to the threaded aperture (1381); a plate groove (1383) which is opened along the extending direction of the hinge plate (132) and is positioned on one side of the hinge plate (132) close to the threaded hole (1381); and a sliding sheet (1384) connected in the plate groove (1383) in a sliding manner, wherein the end part of the thread strip (1382) is hinged with the sliding sheet (1384).

6. Short fiber spraying orientation device according to claim 4, characterized in that the hinge plate (132) has a groove (141) on both side walls, the groove (141) has a channel (142) on the bottom wall and the top wall, the soft plate (14) has a sliding block (143) on both top and bottom, the sliding block (143) is adapted to the channel (142), the soft plate (14) is inserted into the groove (141) and slidably connected to the channel (142), the channel (142) has a return spring (144) therein, one end of the return spring (144) is fixed to the side wall of the sliding block (143) and the other end is fixed to the inner wall of the channel (142).

7. The short fiber jet orientation device according to claim 3, wherein the dispersion box (1) is a rectangular box, a sleeve ring (151) is sleeved on the side wall of the tube body at the output end of the air guide tube (12), mounting blocks (152) are symmetrically mounted at the symmetrical inner wall positions of the dispersion box (1), a straight rod (153) and a screw (154) are fixed between the two symmetrical mounting blocks (152) in parallel, a displacement block (155) is arranged between the two symmetrical mounting blocks (152), the block parts of the displacement block (155) are respectively connected with the straight rod (153) in a sliding manner and in a threaded manner with the screw (154), a power member (156) is mounted on the mounting block (152), and the power member (156) is used for driving the screw (154) to rotate so that the displacement block (155) can displace along the extending direction of the straight rod (153), wherein the side wall of the displacement block (155) is connected with the collar (151) for arrangement.

8. Short fiber jet orientation device according to claim 7, characterized in that lateral walls of the dispersion box (1) on both sides of which the mounting blocks (152) are disposed are horizontally provided with transverse grooves (161), the mounting blocks (152) slide in the transverse grooves (161), one of the transverse grooves (161) is rotatably connected with a threaded rod (162), the other transverse groove is internally fixed with a guide rod (163), the mounting blocks (152) on both sides are respectively in threaded connection with the threaded rod (162) and in sliding connection with the guide rod (163), wherein the inner wall of the dispersion box (1) is provided with a driving member (164), and the driving member (164) is used for driving the threaded rod (162) to rotate so that the mounting blocks (152) can displace along the extension direction of the guide rod (163).

9. Short fiber spraying orientation device according to claim 7, characterized in that the output end of the wind guide pipe (12) is equipped with a wave-folded hose (171), the side wall of the pipe body at the end of the wave-folded hose (171) far away from the wind guide pipe (12) is sleeved with a drive ring (172), the bottom of the collar (151) is equipped with a retractable member (173), the output end of the retractable member (173) is equipped with the top of the drive ring (172), wherein the top of the drive ring (172) is equipped with a telescopic pipe, and the end of the telescopic pipe far away from the drive ring (172) is equipped with the bottom of the collar (151).

10. A short fiber jet orientation device according to claim 2, characterized in that the semi-crosslinked carrier (4) is connected with the forming box (2) in a sliding manner, and the inner wall of the forming box (2) is provided with a lifting component for driving the semi-crosslinked carrier (4) to move in the vertical direction.