CN214026744U - Forming tool for polyurethane lining pipeline - Google Patents

Abstract

A forming tool for a polyurethane lining pipeline comprises flanges, flange seal plates and an inner core, wherein the flanges are fixedly connected to two ends of a pipeline to be formed; the flange sealing plate is fixed on the outer side of the end face of the flange, and a positioning hole in clearance fit with the inner core is formed in the flange sealing plate; the inner core is in a straight tube shape with the length larger than that of the pipeline, the inner core penetrates through the positioning hole, two ends of the inner core are arranged outside the pipeline, and a cavity for pouring polyurethane is defined by the outer wall of the inner core, the inner wall of the pipeline, the flange and the flange sealing plate; and the flange seal plate is provided with a pouring hole for pouring polyurethane into the cavity and an exhaust hole for exhausting air in the cavity. The utility model discloses not only can form the die cavity that pouring polyurethane was used outside treating the forming pipeline, through the thickness of the accurate control polyurethane inner liner of thickness of controlling this die cavity, can also make this die cavity produce the inside lining pipeline that has eccentric polyurethane layer through eccentric settings.

Description

Forming tool for polyurethane lining pipeline

Technical Field

The utility model belongs to the technical field of inside lining pipeline preparation, concretely relates to shaping frock of polyurethane inside lining pipeline.

Background

In the ore dressing process of a mine, ore pulp is generally conveyed through a pipeline, the polyurethane lining pipe has better elasticity due to the fact that the lining polyurethane has the advantage that when the polyurethane is impacted by a medium, the polyurethane is forced to be compressed under the action of external force, and after the external force disappears, the polyurethane is restored to the original state, so that abrasion caused by direct strong scouring of the medium on the inner wall of the pipeline is greatly reduced.

The lining pipe in current polyurethane is when the preparation, often adopt centrifugal casting to make the steel pipe inner wall form the resistant wearing layer of one deck polyurethane, however, because the straightness accuracy of steel pipe is not enough, lead to the thickness and the homogeneity of the resistant wearing layer of unable accurate control polyurethane in the in-process of lining pipe in preparation polyurethane, in addition, to horizontal transport's pipeline, because medium action of gravity, the wearing and tearing that the inner wall that is in the pipeline bottom received are more serious than pipeline top inner wall, the lining pipe in polyurethane often can not reuse because of the bottom wearing and tearing is comparatively serious, the extravagant serious in pipeline top lining polyurethane life-span, the life deviation that leads to the lining pipe in polyurethane is great.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a shaping frock of polyurethane inside lining pipeline, it not only can form the die cavity that the pouring polyurethane was used outside treating the shaping pipeline, through the thickness of the accurate control polyurethane inner liner of the thickness of controlling this die cavity, can also make this die cavity produce the inside lining pipeline that has eccentric polyurethane layer through eccentric settings.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

a forming tool for a polyurethane lining pipeline comprises flanges, flange seal plates and an inner core, wherein the flanges are used for being fixed at two ends of a pipeline to be processed; the flange sealing plate is used for being fixed on the outer side of the end face of the flange, and a positioning hole in clearance fit with the inner core is formed in the flange sealing plate; the inner core is in a straight tube shape with the length larger than that of the pipeline, the inner core penetrates through the positioning hole, two ends of the inner core are arranged outside the pipeline, and a cavity for pouring polyurethane is defined by the outer wall of the inner core, the inner wall of the pipeline, the flange and the flange sealing plate;

and the flange seal plate is provided with a pouring hole for pouring polyurethane into the cavity and an exhaust hole for exhausting air in the cavity.

Furthermore, the flange is provided with a positioning boss, a cavity for pouring the polyurethane flanging is formed by the positioning boss and the flange sealing plate in a surrounding mode, and the cavity is communicated with the cavity.

Furthermore, the pouring hole penetrates through the cavity from the outer circular surface of the flange sealing plate and is communicated with the cavity, and the exhaust hole penetrates through the cavity from the plane of the flange sealing plate and is communicated with the cavity.

Furthermore, an annular groove is formed in the upper edge of the flange sealing plate and embedded with a sealing ring, and the sealing ring is fixedly compressed by an annular pressing plate fixed on the outer side of the flange sealing plate.

Further, the positioning hole is concentric or eccentric with the pipeline.

Further, the forming tool for the polyurethane lining pipeline further comprises a supporting device, the supporting device comprises a support, a plurality of arc-shaped brackets for supporting the pipeline are fixed on the support, and the central connecting line of the brackets is linear and is obliquely arranged relative to the horizontal plane.

Furthermore, the supporting device also comprises an arc-shaped bracket pressing plate, and the pipeline is tightly pressed by fixedly mounting the bracket pressing plate on the bracket.

The utility model has the advantages that:

1. the utility model discloses a setting up flange and flange shrouding at treating the shaping pipeline both ends, setting up the inner core in the pipeline, enclosing the die cavity that is used for pouring polyurethane jointly by the outer wall of inner core, the inner wall of pipeline, flange and flange shrouding, thickness that can accurate control polyurethane inside lining through the thickness dimension of control die cavity and the homogeneity that improves the polyurethane inside lining.

2. The utility model discloses can set the locating hole of flange shrouding to be eccentric form with the pipeline to this realizes the eccentric design of die cavity, can produce the interior bushing of polyurethane that has eccentric polyurethane inside lining through eccentric die cavity, can effectively solve the wearing and tearing that receive because of the inner wall of pipeline bottom and lead to the great condition of the interior bushing life deviation of polyurethane than pipeline top inner wall is more serious, makes the life maximize of the polyurethane pipeline who adopts the polyurethane material production of equal weight.

3. The utility model discloses a pipeline is fixed to bracket and bracket clamp plate, improves the straightness accuracy of pipeline, further improves the homogeneity of polyurethane inside lining.

4. The utility model discloses be equipped with the bracket that the slope set up, can remove the air in the die cavity smoothly, avoid pouring in-process air to remain in the die cavity, sneak into the bubble in leading to polyurethane to this shaping effect after improving the polyurethane pouring.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the overall structure during forming and casting;

FIG. 3 is a schematic view of the structure in the direction B-B in FIG. 2;

FIG. 4 is a schematic view showing the structure of a polyurethane lined pipe.

The labels in the figure are: 1. the device comprises a positioning boss, 2, a flange, 3, a pipeline, 4, a polyurethane lining, 5, a polyurethane flanging, 6, a screw, 7, a pressing plate, 8, a sealing ring, 9, an inner core, 10, an exhaust hole, 11, a pouring hole, 12, a flange sealing plate, 13, a pressing plate fixing screw, 14, a first fixing bolt, 15, a support, 16, a bracket, 17, a bracket pressing plate, 18, a second fixing bolt, 19 and a cavity.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to 4, a forming tool for a polyurethane-lined pipeline comprises a flange 2, a flange closing plate 12 and an inner core 9, wherein the flange 2 is fixedly connected to two ends of a pipeline 3 to be processed; the flange seal plate 12 is fixed on the outer side of the end face of the flange 2, a positioning hole in clearance fit with the inner core 9 is formed in the flange seal plate 12, and the flange seal plate 12 can be fixedly installed on the flange 2 through a first fixing bolt 14; the inner core 9 is in a straight tube shape with the length larger than that of the pipeline 3, during specific implementation, the inner core 9 can be made of a steel tube, the straightness of the outer cylindrical surface reaches above IT12 level, and the smoothness reaches above Ra3.2, so that the straight tube shape of the inner core 9 is ensured, the inner core 9 penetrates through the positioning hole and is arranged in the pipeline 3, and the outer wall of the inner core 9, the inner wall of the pipeline 3, the flange 2 and the flange sealing plate 12 jointly define a cavity 19 for pouring polyurethane; the flange seal plate 12 is provided with a pouring hole 11 and an exhaust hole 10, the pouring hole 11 and the exhaust hole 10 are both communicated with the cavity 19, in specific implementation, the pouring hole 11 can penetrate through the cavity from the outer circular surface of the flange seal plate 12 to be communicated with the cavity 19, the exhaust hole 10 can penetrate through the cavity from the plane of the flange seal plate 12 to be communicated with the cavity 19, and the exhaust hole 10 can be communicated with the pouring hole 11 in implementation.

Further, the flange 2 is provided with a positioning boss 1 protruding outwards, a positioning groove matched with the positioning boss 1 can be formed in the flange sealing plate 12 to facilitate fixing of the flange 2 and the flange sealing plate 12, a cavity used for pouring the polyurethane flanging 5 is formed between the positioning boss 1 and the flange sealing plate 12 in a surrounding mode, the cavity is communicated with the cavity 19, namely the cavity belongs to a part of the cavity 19, the formed polyurethane lining 4 can form the polyurethane layer flanging 5 extending to the positioning boss 1 through the cavity, the polyurethane flanging 5 forms a sealing layer, and sealing performance of the manufactured polyurethane lining pipes in mutual connection can be improved.

Further, follow the locating hole is equipped with the ring channel, the ring channel is embedded to have sealing washer 8, sealing washer 8 is by fixing the annular pressing plate 7 fixed compression in the flange shrouding 12 outside, during the concrete implementation, can use 10mm thick steel sheet preparation annular pressing plate 7, and set up on annular pressing plate 7 with flange shrouding 12 assorted mounting hole, can set up annular shrouding 7 internal diameter to 1 ~ 2mm than the internal core 9 external diameter greatly, pressing plate 7 is fixed on flange shrouding 12 by clamp plate set screw 13, sealing washer 8 can be the O-ring sealing washer, sealing washer 8 can be 120 ℃ high temperature resistant best, improve the leakproofness between internal core 9 and flange shrouding 12 through sealing washer 8.

In particular implementation the utility model discloses in the time, locating hole and pipeline 3 can set up with one heart, also can eccentric settings, when locating hole and pipeline 3 set up with one heart, die cavity 19 is the even cavity of thickness, can reach the thickness of the polyurethane inside lining 4 that accurate control obtained through the thickness of control die cavity 19, when locating hole and pipeline 3 eccentric settings, die cavity 19 is the eccentric tubulose cavity of inequality, can reach the different pipeline that has eccentric polyurethane inside lining 4 of preparation through the eccentricity of control die cavity 19, through setting up the face down that corresponds with this pipeline thick polyurethane layer, can effectively avoid the great phenomenon of polyurethane inside lining pipe life deviation that the wearing and tearing that the inner wall that receives because of the pipeline bottom are more serious than pipeline top inner wall and lead to.

Further, the forming tool for the polyurethane lining pipeline further comprises a supporting device, the supporting device comprises a support 15, a plurality of arc-shaped brackets 16 used for supporting the pipeline 3 are fixed on the support 15, and the central connecting line of the brackets 16 is linear and is obliquely arranged relative to the horizontal plane.

During specific implementation, M12 screw thread can be attacked on pouring hole 11 and exhaust hole 10, place behind strutting arrangement when pipeline 3, with the exhaust hole 10 shutoff of the flange shrouding 12 of lower one end with screw 6, the flange shrouding 12 exhaust hole 10 that is in higher one end is used for discharging the air in the die cavity 19, the smooth discharge of the interior air of die cavity 19 when conveniently pouring like this, in addition, 10# channel-section steel welding preparation can be chooseed for use to support 15, the bottom and the horizontal plane of support 15 flush, bracket 16 can set up 3, the line of center of bracket 16 forms 15-20 contained angles with the bottom of support 15.

Further, the supporting device further comprises an arc-shaped bracket pressing plate 17 fixed on the bracket 16, the bracket pressing plate 17 can be fixedly installed on the bracket 16 through a second fixing bolt 18, the bracket pressing plate 17 can be manufactured after being rolled by a steel plate, the pipeline 3 is tightly fixed through the bracket pressing plate 17, and when the pipeline 3 is not straight, the pipeline 3 can be corrected to be in a consistent parallel state with a central connecting line of the bracket 16 through the bracket pressing plate 17.

Through implementing the utility model discloses, not only can form the die cavity that pouring polyurethane was used outside treating the shaping pipeline, through the thickness of the accurate control polyurethane inner liner of thickness of controlling this die cavity, can also make this die cavity produce the inside lining pipeline that has eccentric polyurethane inside lining through eccentric settings.

It should be noted that the above embodiments are only used for illustrating the present invention, but the present invention is not limited to the above embodiments, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention all fall into the protection scope of the present invention.

Claims (7)

1. The forming tool for the polyurethane lining pipeline is characterized by comprising a flange (2), a flange closing plate (12) and an inner core (9), wherein the flange (2) is used for being fixed at two ends of a pipeline (3) to be processed; the flange sealing plate (12) is used for being fixed on the outer side of the end face of the flange (2), and a positioning hole in clearance fit with the inner core (9) is formed in the flange sealing plate (12); the inner core (9) is in a straight tube shape with the length larger than that of the pipeline (3), the inner core (9) penetrates through the positioning hole, two ends of the inner core (9) are arranged outside the pipeline (3), and a cavity (19) for pouring polyurethane is defined by the outer wall of the inner core (9), the inner wall of the pipeline (3), the flange (2) and the flange sealing plate (12) together;

and the flange seal plate (12) is provided with a pouring hole (11) for pouring polyurethane into the cavity (19) and an exhaust hole (10) for exhausting air in the cavity (19).

2. The forming tool for the polyurethane-lined pipeline as claimed in claim 1, wherein the flange (2) is provided with a positioning boss (1), a cavity for pouring the polyurethane flange (5) is defined between the positioning boss (1) and the flange sealing plate (12), and the cavity is communicated with the cavity (19).

3. The forming tool for the polyurethane lining pipeline as claimed in claim 2, wherein the pouring hole (11) penetrates from the outer circumferential surface of the flange closing plate (12) to the cavity to be communicated with the cavity (19), and the exhaust hole (10) penetrates from the plane of the flange closing plate (12) to the cavity to be communicated with the cavity (19).

4. The forming tool for the polyurethane lining pipeline as claimed in claim 2, wherein the flange seal plate (12) is provided with an annular groove along the positioning hole, a seal ring (8) is embedded in the annular groove, and the seal ring (8) is fixedly pressed by an annular pressing plate (7) fixed on the outer side of the flange seal plate (12).

5. The forming tool for the polyurethane lining pipe as claimed in claim 1, wherein the positioning hole is concentric or eccentric with the pipe (3).

6. The forming tool for the polyurethane lining pipe as claimed in claim 1, wherein the forming tool for the polyurethane lining pipe further comprises a supporting device, the supporting device comprises a support (15), a plurality of arc-shaped brackets (16) used for supporting the pipe (3) are fixed on the support (15), and a central connecting line of the brackets (16) is linear and is inclined relative to a horizontal plane.

7. The forming tool for the polyurethane lining pipe as claimed in claim 6, wherein the supporting device further comprises an arc-shaped bracket pressing plate (17), and the pipe (3) is tightly pressed by the bracket pressing plate (17) which is fixedly arranged on the bracket (16).

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