CN115972532A

CN115972532A - PVC pipe production process

Info

Publication number: CN115972532A
Application number: CN202310107699.0A
Authority: CN
Inventors: 李淑娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-14
Filing date: 2023-02-14
Publication date: 2023-04-18

Abstract

The invention relates to the field of pipeline production, in particular to a PVC pipe production process. The method comprises the following steps: s1: taking PVC resin, and heating and melting the PVC resin; s2: adding an additive into PVC resin and stirring; s3: putting the PVC resin added with the additive into an extruder for extrusion granulation; s4: heating and melting the produced particles, and extruding the melted PVC raw material into a tubular shape in a PVC pipe extruder; s5: passing the extruded PVC pipe through a cooling device; s6: and the cooling device carries out secondary water cooling on the PVC pipe to solidify and shape the PVC pipe. The stabilizer, the lubricant, the filler and the pigment. The PVC pipe extruder is a double-screw extruder. The PVC resin is SG-5 type resin.

Description

PVC pipe production process

Technical Field

The invention relates to the field of pipeline production, in particular to a PVC pipe production process.

Background

The PVC pipe is a plastic pipe, the main material is polyvinyl chloride, and the PVC pipe is formed by extrusion molding by a hot pressing method after polyvinyl chloride resin is matched with a stabilizer, a lubricant and the like. The PVC pipe has the advantages of good strength, low price, heat insulation, moisture protection, moisture preservation, flame retardance and the like, so that the PVC pipe has a wide application area. PVC pipe need cool off the body when extruding, and help PVC pipe solidifies the design, and traditional cooling method is that direct upside at the pipeline waters, and this kind of cooling method can not cool off the PVC pipe comprehensively.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides a PVC pipe production process which has the beneficial effect that the PVC pipe can be subjected to secondary water cooling through a cooling device, so that the PVC pipe is solidified and shaped.

A PVC pipe production process comprises the following steps:

s1: taking PVC resin, and heating and melting the PVC resin;

s2: adding an additive into PVC resin and stirring;

s3: putting the PVC resin added with the additive into an extruder for extrusion granulation;

s4: heating and melting the produced particles, and extruding the melted PVC raw material into a tubular shape in a PVC pipe extruder;

s5: passing the extruded PVC pipe through a cooling device;

s6: and the cooling device carries out secondary water cooling on the PVC pipe to solidify and shape the PVC pipe.

The additives are stabilizers, lubricants, fillers and pigments.

The PVC pipe extruder is a double-screw extruder.

The PVC resin is SG-5 type resin.

Drawings

The invention is described in further detail below with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a flow diagram of a PVC pipe production process;

FIG. 2 is a first schematic structural diagram of a cooling device;

FIG. 3 is a second schematic structural view of the cooling apparatus;

FIG. 4 is a third schematic structural view of a cooling device;

FIG. 5 is a schematic structural view of an arc-shaped box;

FIG. 6 is a schematic structural view of a ring;

FIG. 7 is a schematic view of a translation ring;

FIG. 8 is a schematic view of the structure of the door frame;

fig. 9 is a structural schematic diagram of the T-shaped frame.

In the figure: an arc box 101; a first connector 102; an ejection port 103; a bellows 104;

a circular ring 201; a fixed block 202; a stopper 203; a diagonal rod 204; a slide bar 205; a bracket 206; bristles 207; a side arm 208;

a translation ring 301; a square column 302;

a gantry 401; a second joint 402; a hollow bar 403; a hinge mount 404; a vertical post 405;

a T-shaped frame 501; a ramp piece 502; a round bar 503; a telescoping rod 504; a flap 505; pushing or pulling the post 506.

Detailed Description

A PVC pipe production process comprises the following steps:

s1: taking PVC resin, and heating and melting the PVC resin;

s2: adding an additive into PVC resin and stirring;

s5: passing the extruded PVC pipe through a cooling device;

The additives are stabilizers, lubricants, fillers and pigments.

The PVC pipe extruder is a double-screw extruder.

The PVC resin is SG-5 type resin.

This example can achieve the effect of multi-directional water spray cooling of the pipe as shown in fig. 5.

Because cooling device includes the arc box 101, the arc box 101 is provided with four altogether, be annular setting between four arc boxes 101, connect and communicate through bellows 104 between two adjacent arc boxes 101, be provided with first joint 102 on the arc box 101 that is located the upside, the inboard of every arc box 101 all is provided with a plurality of injection ports 103, can let in the cooling water in joint 102 department, the cooling water can get into a plurality of arc boxes 101 through a plurality of bellows 104, the pipeline that will wait to cool off passes through between four arc boxes 101, then water is multidirectional blowout through a plurality of injection ports 103, carry out multidirectional water spray cooling to the pipeline, improve refrigerated effect. And the four arc boxes 101 can be expanded or folded through the four corrugated pipes 104, so that the four arc boxes 101 can be sleeved outside the pipelines with different sizes, and the pipelines with different sizes are cooled by multi-directional water spraying.

As shown in fig. 6, this example can achieve the effect of expanding or contracting the four arc boxes 101.

Because the left sides of the four arc boxes 101 are connected with the fixed blocks 202 through screws, each fixed block 202 is welded with the sliding rod 205, the four sliding rods 205 are respectively connected to the upper, lower, front and rear ends of the circular ring 201 in a sliding manner, and the four sliding rods 205 can drive the four fixed blocks 202 and the four arc boxes 101 to move when sliding on the circular ring 201, so as to drive the four arc boxes 101 to expand or contract.

As shown in fig. 6, this example can achieve the effect of causing the four arc boxes 101 to have a tendency to converge toward each other.

Because the four sliding rods 205 are respectively sleeved with the first compression springs which are positioned between the circular ring 201 and the corresponding fixed blocks 202, the first compression springs respectively apply a force to the four fixed blocks 202 and the four arc boxes 101 to approach each other, so that the four arc boxes 101 tend to be folded.

As shown in fig. 6-7, this example can achieve the effect of driving the four slide bars 205 and the four arc shaped cassettes 101 to move outward.

Because the outer ends of the four sliding rods 205 are connected with the inclined rods 204 through screws, the left ends of the inclined rods 204 are expanded outwards, the translation ring 301 and the circular ring 201 are coaxially arranged, the translation ring 301 is pressed on the left sides of the four inclined rods 204, the two square columns 302 are welded on the upper portion of the translation ring 301, the two square columns 302 are connected to the upper portion of the circular ring 201 in a sliding mode in the left-right direction, the upper portion of the circular ring 201 is connected with a first fastening screw in a threaded mode, the first fastening screw presses the square columns 302 to fix the square columns 302, the two square columns 302 can be driven to move left and right manually to further drive the translation ring 301 to move left and right, and when the translation ring 301 is driven to move right, the translation ring 301 is pressed against the four inclined rods 204 to drive the four inclined rods 204 to move outwards to further drive the four sliding rods 205 and the four arc boxes 101 to move outwards; when the translation ring 301 moves to the left, the four arc boxes 101 are drawn close to each other due to the action of the compression spring.

As shown in fig. 6, this example can achieve the effect of preventing the shift ring 301 from coming out of the range of the diagonal rod 204.

Because the left end of the diagonal rod 204 is welded with the stop 203, the lower side of the circular ring 201 is welded with the bracket 206, the bracket 206 can support the circular ring 201, and the stop 203 can prevent the translation ring 301 from separating from the range of the diagonal rod 204.

This example can achieve the effect of brushing a further layer of water on the pipe, as shown in figure 6.

Because the front end and the rear end of the right side of the circular ring 201 are both welded with the side arms 208, and the opposite sides of the two side arms 208 are both bonded with the plurality of bristles 207, after the plurality of arc boxes 101 spray water to cool the pipeline, the plurality of bristles 207 on the two side arms 208 are brushed on the pipeline, and a layer of water is brushed on the pipeline to further help the pipeline to cool.

The cooling device further comprises a T-shaped frame 501, the T-shaped frame 501 is connected to the side arm 208 located on the rear side through screws, round rods 503 are welded to the upper end and the lower end of the right side of the T-shaped frame 501, the rear portion of the T-shaped frame 501 is connected to the two round rods 503 in a left-right direction in a sliding mode, vertical columns 405 are connected to the upper end and the lower end of the door-shaped frame 401 in a sliding mode, hinge bases 404 are welded to opposite ends of the two vertical columns 405, two hollow strips 403 are hinged to each hinge base 404, the two hollow strips 403 located on the front side are connected in a hinged mode, the two hollow strips 403 located on the rear side are connected in a hinged mode, a plurality of spray holes are formed in the inner side of each hollow strip 403, and the outer side of each hollow strip 403 is connected with a connector II 402.

This example can achieve the effect of having a varying water spray on the pipe, as shown in figures 8-9, to provide a second cooling of the pipe.

When two upstands 405 are close to each other and slide, two articulated seats 404 are close to each other, four hollow bars 403 mutual rotation, at this moment narrow down from top to bottom between four hollow bars 403, widen about, when two articulated seats 404 keep away from each other, it is wide from top to bottom between four hollow bars 403, narrow down about, and then make the direction of a plurality of orifices on four hollow bars 403 constantly change, make constantly changing water spout to the pipeline, make cooling water and pipeline contact more thorough, carry out the secondary cooling to the pipeline, joint two 402 is used for letting in the cooling water in to hollow bars 403.

The middle part of door-shaped frame 401 sliding connection has push-and-pull post 506 in the front-and-back direction, push-and-pull post 506's front portion rotates to be connected in the articulated department that is located two hollow strips 403 of rear side, push-and-pull post 506 passes through telescopic link 504 drive slip, separation blade 505 has all been welded to the right-hand member of two round bars 503, compression spring two has all been cup jointed on two round bars 503, compression spring two is located between door-shaped frame 401 and separation blade 505, inclined plane piece 502 welds the rear end at push-and-pull post 506, the front side of inclined plane piece 502 is provided with the inclined plane, the inclined plane is pressed at the rear side of T shape frame 501.

As shown in fig. 8-9, this example can achieve the effect that the four hollow bars 403 can move left and right under the condition that the directions of the four hollow bars 403 are changed continuously.

When the telescopic rod 504 stretches, the push-pull column 506 is driven to continuously slide back and forth, the inclined plane piece 502 is further driven to continuously move back and forth, when the inclined plane piece 502 moves forward, the inclined plane presses to the rear side of the T-shaped frame 501, at the moment, the inclined plane piece 502, the push-pull column 506 and the door-shaped frame 401 are driven to move right along the two round rods 503, when the inclined plane piece 502 moves backward, due to the elastic action of the second compression spring, the door-shaped frame 401 moves left along the two round rods 503, on the premise that the directions of the four hollow bars 403 are continuously changed, the four hollow bars 403 can move left and right, and the range of the four hollow bars 403 and further secondary water spraying cooling is larger.

Claims

1. The PVC pipe production process is characterized by comprising the following steps:

s1: taking PVC resin, and heating and melting the PVC resin;

s2: adding an additive into PVC resin and then stirring;

s5: passing the extruded PVC pipe through a cooling device;

2. The PVC pipe production process according to claim 1, characterized in that: the stabilizer, the lubricant, the filler and the pigment.

3. The PVC pipe production process according to claim 1, characterized in that: the PVC pipe extruder is a double-screw extruder.

4. The PVC pipe production process according to claim 1, characterized in that: the PVC resin is SG-5 type resin.

5. The PVC pipe production process according to claim 1, characterized in that: the cooling device comprises four arc boxes (101), the four arc boxes (101) are arranged in an annular mode, two adjacent arc boxes (101) are connected and communicated through a corrugated pipe (104), a first connector (102) is arranged on the arc box (101) located on the upper side, and a plurality of injection ports (103) are arranged on the inner side of each arc box (101).

6. The PVC pipe production process according to claim 5, characterized in that: the left sides of the four arc-shaped boxes (101) are fixedly connected with fixing blocks (202), each fixing block (202) is fixedly connected with a sliding rod (205), and the four sliding rods (205) are respectively connected to the upper end, the lower end, the front end and the rear end of the circular ring (201) in a sliding mode.

7. The PVC pipe production process according to claim 6, characterized in that: the four sliding rods (205) are sleeved with first compression springs, and the first compression springs are located between the circular rings (201) and the corresponding fixed blocks (202).

8. The PVC pipe production process according to claim 7, characterized in that: four equal fixedly connected with down tube (204) in outer end of slide bar (205), the left end of down tube (204) expands outward, translation ring (301) and ring (201) coaxial setting, translation ring (301) press in the left side of four down tube (204), two square columns (302) of upper portion fixedly connected with of translation ring (301), sliding connection is on the upper portion of ring (201) about two square columns (302) are all, the upper portion threaded connection of ring (201) has fastening screw one, fastening screw presses on square column (302) and fixes square column (302).

9. The PVC pipe production process according to claim 8, characterized in that: the left end of the diagonal rod (204) is fixedly connected with a stopper (203), and a support (206) is welded on the lower side of the circular ring (201).

10. The PVC pipe production process according to claim 9, characterized in that: the front end and the rear end of the right side of the circular ring (201) are fixedly connected with side arms (208), and a plurality of bristles (207) are bonded on the opposite sides of the two side arms (208).