CN216032120U

CN216032120U - One-hole multi-outlet glue injection internal shunting structure

Info

Publication number: CN216032120U
Application number: CN202122614883.3U
Authority: CN
Inventors: 王小平; 肖苏伟
Original assignee: Nanjing Jinglue Frp Co ltd
Current assignee: Nanjing Jinglue Frp Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-03-15
Anticipated expiration: 2031-10-28

Abstract

The utility model relates to a branch structure in injecting glue is divided in a hole is many, and it relates to a two-component thermosetting polyurethane resin pressure injecting glue mode field, and it includes the injecting glue connecting piece, be equipped with the confession on the injecting glue connecting piece two ingredient polyurethane resin pours into the injecting glue pipe of injecting glue connecting piece, be equipped with the cavity that supplies two ingredient polyurethane resin to flow in the injecting glue connecting piece, be equipped with the reposition of redundant personnel piece that is used for shunting two ingredient polyurethane resin in the cavity, injecting glue connecting piece bottom is equipped with the export that supplies two ingredient polyurethane resin to flow out. The effect that this application has lies in reducing "perpendicular" injection pressure when two ingredient polyurethane resin conventional mode pours into "injecting glue mould" die cavity into and accelerates the distribution of resin in "injecting glue mould" die cavity, and then has reduced because of two ingredient polyurethane resin cause the possibility that "local" deformation even takes place to damage of fibre reinforced material yarn when pouring into from a injecting glue hole.

Description

One-hole multi-outlet glue injection internal shunting structure

Technical Field

The application relates to a glue injection flow dividing head, in particular to a one-hole multi-outlet glue injection flow dividing structure.

Background

When the fiber reinforced polyurethane resin is produced by adopting a pultrusion process at home and abroad, a special glue injection mold is mostly used, a fiber reinforced material to be infiltrated (impregnated) is penetrated into a cavity of the glue injection mold in advance, the two-component polyurethane resin is uniformly mixed by a mixer on a glue injection machine, and then the two-component polyurethane resin is injected into the cavity of the glue injection mold through a glue injection hose and a glue injection hole on the glue injection mold under certain injection pressure so as to infiltrate the fiber reinforced material.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: the bicomponent polyurethane resin enters the glue injection mold cavity through the glue injection hole under the action of certain injection pressure, and a pressure concentration point is formed on the surface of the fiber reinforced material corresponding to the glue injection hole, so that the fiber reinforced material is deformed and even damaged.

Disclosure of Invention

In order to improve two ingredient polyurethane resin and to pour into the problem that the injecting glue mould chamber can produce deformation and even take place to damage to fibre reinforced material under certain injection pressure, this application provides a branch structure in injecting glue is many out in a hole.

The application provides a branch structure in injecting glue is gone out in a hole more adopts following technical scheme:

the utility model provides a branch structure in injecting glue is divided to a hole more, includes the injecting glue connecting piece, be equipped with the confession on the injecting glue connecting piece two ingredient polyurethane resin pour into the injecting glue pipe of injecting glue connecting piece, be equipped with the cavity that supplies two ingredient polyurethane resin to flow in the injecting glue connecting piece, be equipped with the reposition of redundant personnel piece that is used for shunting two ingredient polyurethane resin in the cavity, injecting glue connecting piece bottom is equipped with the export that supplies two ingredient polyurethane resin to flow out.

Through adopting above-mentioned technical scheme, two ingredient polyurethane resin forms the reposition of redundant personnel under the effect of reposition of redundant personnel piece in entering into the injecting glue connecting piece from the injecting glue pipe, flows from injecting glue connecting piece bottom export to reach the effect of reposition of redundant personnel, thereby reduce the injection pressure when two ingredient polyurethane resin pours into the die cavity into, and then reduced because of two ingredient polyurethane resin when pouring into from an injecting glue hole fiber reinforcement material produce deformation and take place the possibility of damaging even.

Optionally, the reposition of redundant personnel piece is including setting up splitter ring in the injecting glue connecting piece, be equipped with a plurality of diffluence hole on the splitter ring, be equipped with the connecting rod on the splitter ring, the axis of connecting rod with the axis coincidence of injecting glue pipe, the connecting rod is close to and is equipped with the reposition of redundant personnel head on the end wall of injecting glue pipe, the reposition of redundant personnel head with be equipped with the confession between the injecting glue pipe the space that two ingredient polyurethane resin pass through.

By adopting the technical scheme, after the two-component polyurethane resin is injected into the glue injection pipe, the two-component polyurethane resin enters the cavity from the gap, so that the two-component polyurethane resin is buffered and shunted to the shunting hole, the shunting effect is achieved, the two-component polyurethane resin is prevented from being injected from one glue injection hole, the concentration of injection pressure when the two-component polyurethane resin enters the cavity is reduced, and the possibility of deformation and even damage to a fiber reinforced material is reduced; the speed of the two-component polyurethane resin penetrating into the fiber reinforced material can be improved by conveying the two-component polyurethane resin through the plurality of shunting holes.

Optionally, one end of the connecting rod, which is close to the outlet, is provided with a guide block, and the sectional area of the guide block increases progressively from the side close to the connecting rod to the side far away from the connecting rod.

Through adopting above-mentioned technical scheme, after two ingredient polyurethane resin passes through the reposition of redundant personnel hole, through the guide block and the clearance of injecing between the pipe and forming, because the sectional area of guide block is by being close to one side of connecting rod side direction keeping away from the connecting rod and increase progressively, thereby can form "fan-shaped" clearance export of circular cone, thereby it gets into injecting glue model intracavity to form the circular cone slope fan-shaped, thereby enlarge the scattering area behind two ingredient polyurethane resin getting into injecting glue model chamber, thereby the injection pressure when having reduced two ingredient polyurethane resin and getting into injecting glue model chamber, and then reduced the fibre reinforced material and produced the possibility that deformation even takes place the damage.

Optionally, the glue injection pipe is provided with a connecting ring for connecting the glue injection hose and the glue injection pipe, and the inner side wall of the connecting ring is connected with the outer side wall of the glue injection pipe.

Through adopting above-mentioned technical scheme, add man-hour as needs, align injecting glue hose and injecting glue pipe, the clamping ring is with injecting glue pipe and injecting glue hose connection to can avoid injecting glue pipe and injecting glue hose to seal not tight, and then reduce the possibility that two ingredient polyurethane resin leaked.

Optionally, the glue injection connecting piece comprises a limiting pipe arranged on the glue injection mold, a built-in groove is arranged on one side, close to the glue injection pipe, of the limiting pipe, the built-in groove is communicated with the cavity, and the side wall of the built-in groove is connected with the peripheral wall of the shunting ring.

Through adopting above-mentioned technical scheme, inject the pipe and be connected with the injecting glue mould, and inject pipe and splitter ring and install in built-in groove, when the pressure injecting glue, increased the stability of splitter ring when two ingredient polyurethane resin impact.

Optionally, one side of the limiting pipe, which is far away from the built-in groove, is in threaded connection with the glue injection mold.

By adopting the technical scheme, the limiting pipe is in threaded connection with the glue injection mold, so that the possibility of leakage of the two-component polyurethane resin from a gap between the limiting pipe and the glue injection mold is reduced.

Optionally, the glue injection connecting piece further comprises a transition ring, the inner side wall of the transition ring is connected with the outer side wall of the glue injection pipe, one side of the transition ring, which is close to the shunt ring, is in contact with one side of the limiting pipe, which is close to the glue injection pipe, an outer sleeve ring is arranged on the transition ring, and the inner side wall of the outer sleeve ring is connected with the outer side wall of the limiting pipe.

Through adopting above-mentioned technical scheme, the injecting glue pipe is connected to the transition ring, and outer lantern ring connects the limit pipe, and the transition ring has played the connection effect to make the two ingredient polyurethane resin who gets into the injecting glue pipe can get into the cavity and continue the downflow.

Optionally, the outer collar is threadedly coupled to the circumscribing pipe.

By adopting the technical scheme, the threaded connection of the outer sleeve and the limiting pipe is utilized, so that the sealing performance between the outer sleeve and the limiting pipe is increased.

Optionally, a sealing ring is arranged on the shunt ring, a bottom wall of the sealing ring is in contact with a top wall of the shunt ring, the top wall of the sealing ring is in contact with a bottom wall of the transition ring, and an outer side wall of the sealing ring is in contact with an inner side wall of the limiting pipe.

In summary, the present application includes at least one of the following beneficial technical effects: the double-component polyurethane resin enters the glue injection connecting piece from the glue injection pipe, each hole in the shunt core forms shunt, and then the shunt is formed in a fan-shaped mode from the outlet at the bottom of the glue injection connecting piece and flows into the cavity of the glue injection mold, so that the shunt effect is achieved, the injection pressure of the double-component polyurethane resin when the double-component polyurethane resin is injected into the cavity is reduced, and the possibility that the fiber reinforced material is deformed or even damaged when the double-component polyurethane resin is directly injected from one glue injection hole is reduced.

Drawings

Fig. 1 is a schematic structural view of a split-flow structure with one hole and multiple glue injection holes in embodiment 1 of the present application.

Fig. 2 is a schematic sectional view of the plane a-a in fig. 1.

Description of reference numerals: 1. glue injection connecting pieces; 10. a chamber; 11. an outlet; 12. a transition ring; 13. an outer collar; 14. defining a tube; 140. a built-in groove; 141. a placing groove; 142. a seal ring; 15. a void; 2. a glue injection pipe; 20. a connecting ring; 3. a flow divider; 30. a shunt ring; 31. a connecting rod; 32. a flow dividing head; 33. a guide block; 34. a gap; 35. a shunt hole; 36. sealing the ring; 37. a flow increasing inclined plane; 4. injecting glue holes; 5. and (5) injecting a glue mold.

Detailed Description

The embodiment of the application discloses a structure of dividing flows in injecting glue is many out in a hole.

Referring to fig. 1 and 2, the one-hole-multiple-outlet glue-injection internal-division-flow structure comprises a glue-injection connecting piece 1, a glue-injection pipe 2 for allowing two-component polyurethane resin to flow into is arranged on the glue-injection connecting piece 1, the cross section of the glue-injection pipe 2 is annular, a connecting ring 20 is arranged on the glue-injection pipe 2 in a threaded connection mode, a cavity 10 for allowing the two-component polyurethane resin to flow into is arranged in the glue-injection connecting piece 1, a flow-dividing piece 3 for dividing the two-component polyurethane resin is arranged in the cavity 10, an outlet 11 for allowing the two-component polyurethane resin to flow out is arranged at the bottom of the glue-injection connecting piece 1, the outlet 11 is communicated with the cavity 10, and a flow-increasing inclined plane 37 is arranged on one side, close to the outlet 11, of the glue-injection connecting piece 1; when the double-component polyurethane resin injection hole 4 needs to be injected, the injection pipe 2 is aligned with the injection hose, the connecting ring 20 is rotated to connect the injection pipe 2 with the injection hose, so that the double-component polyurethane resin enters the cavity 10 from the injection pipe 2 into the injection connecting piece 1, a shunt is formed under the action of the shunt piece 3, and flows out from the outlet 11 at the bottom of the injection connecting piece 1, the purpose of shunting is achieved, the excessive injection pressure is avoided when the double-component polyurethane resin injection hole 4 is injected, and the possibility of deformation and even damage to the fiber reinforced material is reduced; the flow increasing inclined plane 37 is used for increasing the flow space of the outlet 11, and the speed of the two-component polyurethane resin penetrating into the fiber reinforced material can be increased.

Referring to fig. 2, the glue injection connector 1 comprises a transition ring 12, the glue injection pipe 2 is in threaded connection with the transition ring 12, the cross section of the transition ring 12 is circular, an outer sleeve ring 13 is arranged on the transition ring 12, the bottom wall of the transition ring 12 is connected with the top wall of the outer sleeve ring 13, the transition ring 12 and the outer collar 13 are integrally formed, the outer collar 13 is provided with a limiting pipe 14, the outer side wall of the limiting pipe 14 is in threaded connection with the inner side wall of the outer collar 13, the top wall of the limiting pipe 14 is in contact with the bottom wall of the transition ring 12, the top wall of the limiting pipe 14 is provided with an internal groove 140, the internal groove 140 is axially arranged along the limiting pipe 14, the internal groove 140 is communicated with the cavity 10, the bottom wall of the limiting pipe 14 is provided with a placement groove 141, the placement groove 141 is communicated with the side wall of one side of the limiting pipe 14, which is far away from the shunt part 3, a sealing ring 142 is arranged in the placement groove 141, and the side wall of one side, which is close to the cavity 10, of the placement groove 141 is in threaded connection with the glue injection hole 4 on the glue injection mold 5.

When the processing is needed, the glue injection pipe 2 is screwed and installed on the transition ring 12, then the outer sleeve ring 13 is installed on the limiting pipe 14, finally the limiting pipe 14 is screwed and installed on the glue injection hole 4, and the transition ring 12 and the limiting pipe 14 have a connecting effect, so that the two-component polyurethane resin entering the glue injection pipe 2 can enter the cavity 10 and continuously flow downwards to finally flow out from the outlet 11, and further can smoothly enter the cavity of the mold.

Referring to fig. 2, the splitter 3 includes the splitter 30 with built-in groove 140 threaded connection, splitter 30 and built-in groove 140 tank bottom wall contact, the last circumference of splitter 30 distributes and is equipped with a plurality of diffluence hole 35, diffluence hole 35 can set up the quantity according to different size product sizes, diffluence hole 35 can be the round hole, also can be waist type hole, adopt the round hole in this embodiment, be equipped with sealed ring 36 on the splitter 30, sealed ring 36 roof contacts with transition ring 12, sealed ring 36 diapire contacts with splitter 30 roof. A connecting rod 31 is arranged on the shunting ring 30, the cross section of the connecting rod 31 is circular, a conical shunting head 32 is arranged on the connecting rod 31, the top wall of the connecting rod 31 is connected with the bottom wall of the shunting head 32, the diameter of the cross section of the connecting rod 31 is the same as the diameter of the maximum cross section of the shunting head 32, the top of the shunting head 32 is below the bottom of the glue injection pipe 2, the axis of the shunting head 32 is superposed with the axis of the glue injection pipe 2, a gap 15 is formed between the shunting head 32 and the glue injection pipe 2, a guide block 33 close to the outlet 11 is arranged on one side of the connecting rod 31 far away from the shunting head 32, the cross section of the guide block 33 is gradually increased from the top to the bottom, and the top of the guide block 33 is connected with the bottom of the connecting rod 31, the top surface of the guide block 33 is the same as the bottom surface of the connecting rod 31, the axis of the guide block 33 is superposed with the axis of the connecting rod 31, and a gap 34 for the two-component polyurethane resin to enter the mold cavity is formed between the guide block 33 and the inner side wall of the limiting pipe 14.

The two-component polyurethane resin is injected into the glue injection pipe 2 through the glue injection hose, the two-component polyurethane resin is dispersed into the cavity 10 from a gap 15 between the glue injection pipe 2 and the flow dividing head 32 and then continuously flows downwards through the flow dividing hole 35 on the flow dividing ring 30, the guide block 33 buffers the two-component polyurethane resin flowing downwards, and the two-component polyurethane resin is in a conical inclined surface fan shape and flows into a cavity of a mold through the gap 34, so that the phenomenon that the two-component polyurethane resin enters the cavity 10 from the single glue injection hole 4 under strong injection pressure is avoided, and the possibility that the two-component polyurethane resin causes a fiber reinforced material to deform or even be damaged is reduced.

The speed of penetration of the two-component polyurethane resin into the fiber-reinforced material can also be increased by delivering the two-component polyurethane resin through the plurality of branch flow holes 35.

The implementation principle of the embodiment 1 is as follows: two-component polyurethane resin gets into cavity 10 from injecting glue pipe 2, the scattered flow that flows to splitter ring 30 all around when flowing through flow distribution head 32, two-component polyurethane resin continues to flow downwards from splitter hole 35 on splitter ring 30, form the reposition of redundant personnel, guide block 33 forms the buffering to two-component polyurethane resin when flowing to the stand pipe surface, and make two-component polyurethane resin be the fan-shaped die cavity that flows into the mould through clearance 34 of conical inclined plane, thereby avoid because two-component polyurethane resin pours into cavity 10 into from single filling hole into, thereby avoid pouring into cavity 10 two-component polyurethane resin injection pressure too big, and then reduce two-component polyurethane resin and make the fibrous reinforcement material warp the possibility of damage even.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, 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. The utility model provides a branch structure in injecting glue is gone out more in a hole which characterized in that: including injecting glue connecting piece (1), be equipped with on injecting glue connecting piece (1) and be used for supplying two ingredient polyurethane resin to pour into injecting glue pipe (2) of injecting glue connecting piece (1), be equipped with cavity (10) that supply two ingredient polyurethane resin to flow in injecting glue connecting piece (1), be equipped with in cavity (10) and be used for shunting two ingredient polyurethane resin's reposition of redundant personnel piece (3), injecting glue connecting piece (1) bottom is equipped with outlet (11) that supply two ingredient polyurethane resin to flow.

2. The one-hole-multiple-outlet glue injection internal shunting structure of claim 1, wherein: reposition of redundant personnel piece (3) are including setting up reposition of redundant personnel ring (30) in injecting glue connecting piece (1), be equipped with a plurality of diffluence hole (35) on reposition of redundant personnel ring (30), be equipped with connecting rod (31) on reposition of redundant personnel ring (30), the axis of connecting rod (31) with the axis coincidence of injecting glue pipe (2), connecting rod (31) are close to and are equipped with branch flow head (32) on the end wall of injecting glue pipe (2), branch flow head (32) with be equipped with the confession between injecting glue pipe (2) space (15) that two ingredient polyurethane resin pass through.

3. The one-hole-multiple-outlet glue injection internal shunting structure of claim 2, wherein: one end of the connecting rod (31) close to the outlet (11) is provided with a guide block (33), and the sectional area of the guide block (33) is gradually increased from one side close to the connecting rod (31) to one side far away from the connecting rod (31).

4. The one-hole-multiple-outlet glue injection internal shunting structure of claim 1, wherein: be equipped with on injecting glue pipe (2) and be used for connecting injecting glue hose and injecting glue coupling (20) of pipe (2), coupling ring (20) inside wall with injecting glue pipe (2) lateral wall is connected.

5. The one-hole-multiple-outlet glue injection internal shunting structure of claim 1, wherein: the glue injection connecting piece (1) comprises a limiting pipe (14) arranged on a glue injection mold (5), wherein an internal groove (140) is formed in one side, close to the glue injection pipe (2), of the limiting pipe (14), the internal groove (140) is communicated with the cavity (10), and the side wall of the internal groove (140) is connected with the peripheral wall of the shunting ring (30).

6. The one-hole-multiple-outlet glue injection internal shunting structure of claim 5, wherein: one side of the limiting pipe (14) far away from the built-in groove (140) is in threaded connection with the glue injection mold (5).

7. The one-hole-multiple-glue-injection internal shunting structure of claim 6, wherein: injecting glue connecting piece (1) still includes transition ring (12), transition ring (12) inside wall with injecting glue pipe (2) lateral wall is connected, one side that transition ring (12) are close to splitter ring (30) with one side contact that limit pipe (14) are close to injecting glue pipe (2), be equipped with outer lantern ring (13) on transition ring (12), outer lantern ring (13) inside wall with limit pipe (14) lateral wall is connected.

8. The one-hole-multiple-outlet glue-injection internal-division flow structure according to claim 7, characterized in that: the outer collar (13) is in threaded connection with the limiting tube (14).

9. The one-hole-multiple-outlet glue-injection internal-division flow structure according to claim 7, characterized in that: be equipped with sealing ring circle (36) on splitter ring (30), sealing ring circle (36) diapire with splitter ring (30) roof contact, sealing ring circle (36) roof and transition ring (12) diapire contact, sealing ring circle (36) lateral wall with limiting pipe (14) inside wall contact.