CN210590489U - Forming internal mold of hole-net steel skeleton reinforced composite pipe - Google Patents
Forming internal mold of hole-net steel skeleton reinforced composite pipe Download PDFInfo
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- CN210590489U CN210590489U CN201921415426.8U CN201921415426U CN210590489U CN 210590489 U CN210590489 U CN 210590489U CN 201921415426 U CN201921415426 U CN 201921415426U CN 210590489 U CN210590489 U CN 210590489U
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Abstract
The utility model discloses a shaping centre form of hole net steel skeleton reinforcing composite pipe, the shaping centre form has set gradually the plastic section, upper reaches die section and low reaches die section, the periphery of this plastic section is provided with the plastic structure, be connected through the upper reaches connecting seat between upper reaches die section and the low reaches die section, the low reaches end of low reaches die section is provided with the low reaches connecting seat, be provided with the cooling barrel between low reaches connecting seat and the upper reaches connecting seat, this cooling barrel and low reaches die section between constitute cooling channel, install inlet tube and wet return in the shaping centre form, be provided with upper reaches intercommunication passageway and low reaches intercommunication passageway on upper reaches connecting seat and the low reaches connecting seat respectively, upper reaches intercommunication passageway communicates cooling channel and wet return, low reaches intercommunication passageway is with the inlet tube intercommunication. The forming internal mold can effectively cool the composite pipe, so that the inner surface of the composite pipe is smoother, and meanwhile, the mesh steel framework can be shaped, and the uniformity of the strength of the composite pipe is improved.
Description
Technical Field
The utility model relates to a compound pipe production technical field especially relates to a shaping centre form of compound pipe of mesh steel skeleton reinforcing.
Background
The hole-mesh steel skeleton reinforced composite pipe is a novel composite pipe at present, the hole-mesh steel skeleton is added on the basis of a common plastic pipe, the hole-mesh steel skeleton is in a tubular structure formed by crimping and welding hole-mesh steel belts, then the reinforced skeleton enters a forming die for forming, the forming die mainly comprises a forming internal die and an external die, the external die is connected with an extruder, the hole-mesh steel skeleton enters between the external die and the internal die, plastic extruded by the extruder flows into the space between the external die and the internal die to wrap the steel skeleton and then form the composite pipe, and the existing forming internal die has the following defects:
1. the coiled and formed mesh steel skeleton may not be completely cylindrical, and may deform during welding and coiling, so that the strength of the composite pipe formed after entering the forming die is uneven;
2. the forming internal mold of the extruder needs to be cooled, and the existing cooling effect is not good, so that the forming inner wall of the composite pipe is not smooth;
3. although the inner hole of the composite pipe is in contact with the inner die, the contact between the inner hole and the inner die is not very gentle in the actual production process, so that the inner diameter size of the composite pipe may fluctuate, and errors are easy to generate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the utility model provides a shaping centre form of compound pipe of mesh steel skeleton reinforcing, this shaping centre form can effectual cooling compound pipe to make the internal surface of compound pipe more smooth, can also carry out the plastic to the mesh steel skeleton simultaneously, improve the homogeneity of the intensity of compound pipe.
In order to solve the technical problem, the technical scheme of the utility model is that: a shaping internal mold of a hole-network steel skeleton reinforced composite pipe is hollow and sequentially provided with a shaping section, an upstream mold section and a downstream mold section, wherein the shaping section is connected to the upstream end of the upstream mold section, the periphery of the shaping section is provided with a shaping structure, the periphery of the upstream mold section is provided with a material flow channel for facilitating the material to enter and circulate, the upstream mold section is connected with the downstream mold section through an upstream connecting seat, the downstream end of the downstream mold section is provided with a downstream connecting seat, a cooling cylinder is arranged between the downstream connecting seat and the upstream connecting seat, a cooling channel is formed between the periphery of the cooling cylinder and the inner wall of the downstream mold section, the shaping internal mold is internally provided with a water inlet pipe and a water return pipe, the downstream end of the water inlet pipe is arranged on the upstream connecting seat or the downstream connecting seat, correspondingly, the downstream end of the water return pipe is arranged on the downstream connecting, the cooling device is characterized in that an upstream communicating channel and a downstream communicating channel are respectively arranged on the upstream connecting seat and the downstream connecting seat, the upstream communicating channel communicates the cooling channel with a water inlet pipe or a water return pipe arranged on the upstream connecting seat, and the downstream communicating channel communicates the cooling channel with a water return pipe or a water inlet pipe arranged on the downstream connecting seat.
As a preferable scheme, a negative pressure vacuum tube is further fixed in the forming inner die, a suction channel is arranged on the downstream connecting seat, a plurality of suction holes are arranged on the periphery of the downstream end of the corresponding downstream die section, and the downstream end of the negative pressure vacuum tube is communicated with the suction holes through the suction channel.
As a preferable scheme, the negative pressure vacuum tube comprises an upstream vacuum tube and a downstream vacuum tube, the downstream vacuum tube is fixed between the upstream connecting seat and the downstream connecting seat, the suction channel is communicated with the downstream vacuum tube, and the upstream connecting seat is provided with a connecting channel for communicating the upstream vacuum tube with the downstream vacuum tube.
Preferably, the cooling cylinder is provided with a helical blade on its outer periphery, and the helical blade and the inner wall of the downstream die section form a helical cooling channel therebetween.
As a preferable scheme, the shaping structure comprises at least two shaping rings arranged at intervals at the periphery of the shaping section, and a plurality of guide protrusions for supporting the inner wall of the mesh steel framework are arranged on the upper circumference of each shaping ring.
Preferably, the shaping section comprises at least two shaping mold sections, adjacent shaping mold sections are connected through a connecting cylinder, and the shaping ring is arranged outside the connecting cylinder.
Preferably, the shaping section comprises a first shaping mold section, a second shaping mold section and a third shaping mold section, the first shaping mold section is connected with the second shaping mold section through a first connecting cylinder, the second shaping mold section is connected with the third shaping mold section through a second connecting cylinder, the shaping ring is arranged outside the first connecting cylinder and the second connecting cylinder, and the upstream end of the first shaping mold section is provided with an upstream shaping seat which is also provided with the shaping ring.
Preferably, an inner guide shaping cylinder is further arranged between the third shaping die section and the upstream die section, the inner guide shaping cylinder is fixed on the upstream die section, an upstream end of the inner guide shaping cylinder is provided with a mounting stepped hole, a downstream end of the third shaping die section is inserted into the mounting stepped hole, a guide shaping protrusion is arranged around the outer periphery of the inner guide shaping cylinder, the guide shaping protrusion is higher than the outer peripheral surface of the third shaping die section, and an inclined surface connected with the outer peripheral surface of the third shaping die section is arranged on the guide shaping protrusion.
As a preferable scheme, at least two groups of positioning keys are further arranged on the periphery of the shaping section, each group of positioning keys is evenly distributed on the periphery of the first shaping mold section in a circumferential manner, and each positioning key is provided with a positioning arc surface concentric with the first shaping section.
Preferably, an insulating ring is arranged between the upstream die section and the downstream die section.
After the technical scheme is adopted, the utility model discloses an effect is: the shaping internal mold shapes the mesh steel framework through a shaping mechanism on the shaping section; and upper reaches mould section and low reaches mould section pass through the upper reaches connecting seat and the connection of low reaches connecting seat, and inlet tube and wet return can be fixed respectively on upper reaches connecting seat and low reaches connecting seat, then communicate with cooling channel through the upper reaches intercommunication passageway and the low reaches intercommunication passageway that correspond, intake like this and the back water all very smooth and easy, the installation of inlet tube and wet return is also very convenient, to sum up, this shaping centre form can plastic hole mesh steel skeleton, makes the intensity of each position of composite pipe all more even, and low reaches mould section cooling effect is good, and the inner wall of composite pipe is more smooth.
And because the inside of the forming inner die is also fixed with a negative pressure vacuum tube, the downstream connecting seat is provided with a suction channel, the periphery of the downstream end of the corresponding downstream die section is provided with a plurality of suction holes, and the downstream end of the negative pressure vacuum tube is communicated with the suction holes through the suction channel, thus, the negative pressure vacuum tube can be used for sucking vacuum, and the suction holes form negative pressure, so that the inner hole wall of the composite tube is better attached to the downstream die section due to the negative pressure effect, thereby ensuring that the inner hole of the composite tube has small size fluctuation, higher precision and higher smoothness.
And because the periphery of the cooling cylinder body is provided with the spiral blades which are arranged in a spiral manner, a spiral cooling channel is formed between the spiral blades and the inner wall of the downstream die section. Therefore, the cooling channel can lead cooling water to flow spirally, and the cooling effect is better.
And because the shaping structure comprises at least two shaping rings arranged at intervals on the periphery of the shaping section, and a plurality of guide bulges for supporting the inner wall of the meshed steel skeleton are arranged on the periphery of the shaping ring.
The shaping section comprises a first shaping mold section, a second shaping mold section and a third shaping mold section, the first shaping mold section is connected with the second shaping mold section through a first connecting cylinder, the second shaping mold section is connected with the third shaping mold section through a second connecting cylinder, the shaping ring is arranged outside the first connecting cylinder and the second connecting cylinder, the shaping section is divided into three sections, the shaping ring can be better arranged, meanwhile, the length of the shaping section is longer, and the concentricity is better guaranteed.
And because the periphery of the shaping section is also provided with at least two groups of positioning keys, each group of positioning keys is uniformly distributed on the periphery of the first shaping mold section in a circumferential manner, each positioning key is provided with a positioning cambered surface concentric with the first shaping section, and the center of the inner molding mold can be better determined by utilizing the positioning cambered surfaces on the positioning keys, so that the inner molding mold can be better matched and concentric with the outer mold.
And because the heat insulation ring is arranged between the upstream die section and the downstream die section, the heat of the upstream die section is prevented from being transferred to the downstream die section to influence the cooling effect.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is a schematic view showing a positioning key installation position structure;
FIG. 3 is a structural cross-sectional view of the shaping segment;
FIG. 4 is a structural cross-sectional view of an upstream mold segment and a downstream mold segment;
in the drawings: 1. a shaping section; 101. a first shaping die section; 102. a second shaping die section; 103. a third shaping die section; 104. a first connecting cylinder; 105. a second connecting cylinder; 106. an upstream truing mount; 2. an upstream die section; 3. a downstream die section; 4. a positioning key; 41. positioning the arc surface; 5. an integral ring; 51. a guide projection; 6. an inner guide shaping cylinder; 61. a guide shaping bulge; 62. mounting a step; 7. cooling the cylinder; 8. a helical blade; 9. a cooling channel; 10. a downstream connection seat; 11. an upstream connection seat; 12. a heat insulating ring; 13. a water inlet pipe; 14. a water return pipe; 15. an upstream vacuum tube; 16. a downstream vacuum tube; 17. a suction ring groove; 18. a suction hole; 19. an engagement channel; 20. a downstream communication channel; 21. an upstream communication passage.
Detailed Description
The present invention will be described in further detail with reference to the following examples.
As shown in fig. 1 to 4, a shaping internal mold of a mesh steel skeleton reinforced composite pipe is hollow, and is sequentially provided with a shaping section 1, an upstream mold section 2 and a downstream mold section 3, wherein the shaping section 1 is connected to the upstream end of the upstream mold section 2, and a shaping structure is arranged on the periphery of the shaping section 1.
As shown in fig. 1, 2 and 3, the shaping structure includes at least two shaping rings 5 arranged at intervals at the periphery of the shaping section 1, and a plurality of guide protrusions 51 supporting the inner wall of the mesh steel skeleton are arranged on the upper circumference of the shaping ring 5. While the shaping section 1 comprises at least two shaping mold sections, adjacent shaping mold sections are connected through a connecting cylinder, and the shaping ring is arranged outside the connecting cylinder, in the embodiment, preferably, the shaping section 1 comprises a first shaping mold section 101, a second shaping mold section 102 and a third shaping mold section 103, the first shaping mold section 101 and the second shaping mold section 102 are connected through a first connecting cylinder 104, the second shaping mold section 102 and the third shaping mold section 103 are connected through a second connecting cylinder 105, and the shaping ring 5 is arranged outside the first connecting cylinder 104 and the second connecting cylinder 105. The upstream end of the first reshaping mould section 101 is provided with an upstream reshaping seat 106, and the upstream reshaping seat 106 is also provided with the reshaping ring 5. An inner guide shaping cylinder 6 is further arranged between the third shaping die section 103 and the upstream die section 2, the inner guide shaping cylinder 6 is fixed on the upstream die section 2, an upstream end of the inner guide shaping cylinder 6 is provided with a mounting step 62 hole, a downstream end of the third shaping die section 103 is inserted into the mounting step 62 hole, a circle of the outer periphery of the inner guide shaping cylinder 6 is provided with a guide shaping protrusion 61, the outer peripheral surface of the guide shaping protrusion 61 is higher than that of the third shaping die section 103, and the guide shaping protrusion 61 is provided with an inclined surface connected with the outer peripheral surface of the third shaping die section 103.
The periphery of first plastic mould section 101 still is provided with at least a set of navigation key 4, and the equal circumference equipartition in the periphery of first plastic mould section 101 of every group navigation key 4 all is provided with location cambered surface 41 on every navigation key 4. The positioning cambered surface 41 can be used for determining the center of the shaping section 1, and finally ensuring the concentricity of the whole forming inner die and the outer die.
As shown in fig. 4, a material flow channel for facilitating the material to enter and circulate is arranged on the periphery of the upstream die section 2, the material flow channel is in an arc-groove-shaped structure, the upstream die section 2 and the downstream die section 3 are connected through an upstream connecting seat 11, and a heat insulation ring 12 is arranged between the upstream die section 2 and the downstream die section 3. The downstream end of the downstream die section 3 is provided with a downstream connecting seat 10, a cooling cylinder 7 is arranged between the downstream connecting seat 10 and an upstream connecting seat 11, a cooling channel 9 is formed between the periphery of the cooling cylinder 7 and the inner wall of the downstream die section 3, preferably, the periphery of the cooling cylinder 7 is provided with a spiral blade 8, and a spiral cooling channel 9 is formed between the spiral blade 8 and the inner wall of the downstream die section 3, so that the flow path of cooling water is prolonged, and the cooling effect is better.
The forming inner die is internally provided with a water inlet pipe 13 and a water return pipe 14, the downstream end of the water inlet pipe 13 is arranged on an upstream connecting seat 11 or a downstream connecting seat 10, correspondingly, the downstream end of the water return pipe 14 is arranged on the downstream connecting seat 10 or the upstream connecting seat 11, the upstream connecting seat 11 and the downstream connecting seat 10 are respectively provided with an upstream communicating channel 21 and a downstream communicating channel 20, the upstream communicating channel 21 communicates the cooling channel 9 with the water inlet pipe 13 or the water return pipe 14 arranged on the upstream connecting seat 11, and the downstream communicating channel 20 communicates the cooling channel 9 with the water return pipe 14 or the water inlet pipe 13 arranged on the downstream connecting seat 10.
A negative pressure vacuum tube is further fixed in the forming inner die, a suction channel is arranged on the downstream connecting seat 10, a plurality of suction holes 18 are arranged on the periphery of the downstream end of the corresponding downstream die section 3, and the downstream end of the negative pressure vacuum tube is communicated with the suction holes 18 through the suction channel.
The negative pressure vacuum tube comprises an upstream vacuum tube 15 and a downstream vacuum tube 16, the downstream vacuum tube 16 is fixed between the upstream connecting seat 11 and the downstream connecting seat 10, the suction channel is communicated with the downstream vacuum tube 16, and the upstream connecting seat 11 is provided with a connecting channel 19 for communicating the upstream vacuum tube 15 with the downstream vacuum tube 16. The suction channel comprises a suction ring groove 17 arranged on the downstream connecting seat 10, and the suction ring groove 17 is used for communicating a suction hole 18 with the lower negative pressure vacuum pipe section.
The vacuum tube, the water inlet tube 13 and the water return tube 14 in this embodiment are arranged concentrically, but certainly not necessarily, and may be arranged in a triangular shape according to the size of the inner hole of the forming inner die. The above-mentioned embodiments are merely descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and alterations made to the technical solution of the present invention without departing from the spirit of the present invention are intended to fall within the scope of the present invention defined by the claims.
Claims (10)
1. The utility model provides a shaping centre form of compound pipe of mesh steel skeleton reinforcing which characterized in that: the forming internal mold is hollow, the forming internal mold is sequentially provided with a shaping section, an upstream mold section and a downstream mold section, the shaping section is connected to the upstream end of the upstream mold section, the periphery of the shaping section is provided with a shaping structure, the periphery of the upstream mold section is provided with a material flow channel which is convenient for materials to enter and circulate, the upstream mold section is connected with the downstream mold section through an upstream connecting seat, the downstream end of the downstream mold section is provided with a downstream connecting seat, a cooling cylinder is arranged between the downstream connecting seat and the upstream connecting seat, a cooling channel is formed between the periphery of the cooling cylinder and the inner wall of the downstream mold section, a water inlet pipe and a water return pipe are installed in the forming internal mold, the downstream end of the water inlet pipe is installed on the upstream connecting seat or the downstream connecting seat, correspondingly, the downstream end of the water return pipe is installed on the downstream connecting seat or the upstream connecting seat, and upstream connecting seat, the upstream communication channel communicates the cooling channel with an upper water inlet pipe or a water return pipe arranged on the upstream connecting seat, and the downstream communication channel communicates the cooling channel with a water return pipe or a water inlet pipe arranged on the downstream connecting seat.
2. The internal mold for molding a hole-mesh steel-frame reinforced composite pipe as claimed in claim 1, wherein: and a negative pressure vacuum tube is further fixed in the forming inner die, a suction channel is arranged on the downstream connecting seat, a plurality of suction holes are correspondingly arranged on the periphery of the downstream end of the downstream die section, and the downstream end of the negative pressure vacuum tube is communicated with the suction holes through the suction channel.
3. The internal mold for molding a hole-mesh steel-frame reinforced composite pipe as claimed in claim 2, wherein: the negative pressure vacuum tube comprises an upstream vacuum tube and a downstream vacuum tube, the downstream vacuum tube is fixed between the upstream connecting seat and the downstream connecting seat, the suction channel is communicated with the downstream vacuum tube, and the upstream connecting seat is provided with a connecting channel for communicating the upstream vacuum tube with the downstream vacuum tube.
4. The internal mold for molding a hole-mesh steel-frame reinforced composite pipe as claimed in claim 1, wherein: the periphery of the cooling cylinder body is provided with a spiral blade which is arranged in a spiral mode, and a spiral cooling channel is formed between the spiral blade and the inner wall of the downstream die section.
5. The internal mold for molding a hole-network steel-frame reinforced composite pipe as claimed in any one of claims 1 to 4, wherein: the shaping structure comprises at least two shaping rings arranged at intervals on the periphery of the shaping section, and a plurality of guide protrusions supporting the inner wall of the meshed steel skeleton are arranged on the upper circumference of each shaping ring.
6. The internal mold for molding a hole-mesh steel-frame reinforced composite pipe as claimed in claim 5, wherein: the shaping section comprises at least two shaping mold sections, adjacent shaping mold sections are connected through a connecting cylinder, and the shaping ring is arranged outside the connecting cylinder.
7. The internal mold for molding a perforated steel skeleton reinforced composite pipe as claimed in claim 6, wherein: the shaping section comprises a first shaping mold section, a second shaping mold section and a third shaping mold section, the first shaping mold section is connected with the second shaping mold section through a first connecting cylinder, the second shaping mold section is connected with the third shaping mold section through a second connecting cylinder, the shaping ring is arranged outside the first connecting cylinder and the second connecting cylinder, the upstream end of the first shaping mold section is provided with an upstream shaping seat, and the upstream shaping seat is also provided with the shaping ring.
8. The internal mold for molding a hole-mesh steel-frame reinforced composite pipe as claimed in claim 7, wherein: an inner guide shaping cylinder is further arranged between the third shaping die section and the upstream die section, the inner guide shaping cylinder is fixed on the upstream die section, an installation step hole is formed in the upstream end of the inner guide shaping cylinder, the downstream end of the third shaping die section is inserted into the installation step hole, a guide shaping protrusion is arranged on the periphery of the inner guide shaping cylinder in a circle, the guide shaping protrusion is higher than the peripheral surface of the third shaping die section, and an inclined surface connected with the peripheral surface of the third shaping die section is arranged on the guide shaping protrusion.
9. The internal mold for molding a perforated steel skeleton reinforced composite pipe as claimed in claim 8, wherein: the periphery of plastic section still is provided with at least two sets of navigation key, and the equal circumference equipartition in the periphery of first plastic mould section of every navigation key all is provided with the concentric location cambered surface with first plastic section on every navigation key.
10. The internal mold for molding a hole-mesh steel-frame reinforced composite pipe as claimed in claim 9, wherein: and an insulating ring is arranged between the upstream die section and the downstream die section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415426.8U CN210590489U (en) | 2019-08-28 | 2019-08-28 | Forming internal mold of hole-net steel skeleton reinforced composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921415426.8U CN210590489U (en) | 2019-08-28 | 2019-08-28 | Forming internal mold of hole-net steel skeleton reinforced composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210590489U true CN210590489U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921415426.8U Active CN210590489U (en) | 2019-08-28 | 2019-08-28 | Forming internal mold of hole-net steel skeleton reinforced composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210590489U (en) |
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2019
- 2019-08-28 CN CN201921415426.8U patent/CN210590489U/en active Active
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