PVC pipeline and manufacturing process thereof

Abstract

The invention relates to the field of PVC (polyvinyl chloride) pipelines, in particular to a PVC pipeline and a manufacturing process thereof. According to the PVC pipeline and the manufacturing process thereof, the end of one side of the PVC pipeline can be symmetrically and obliquely cut, and therefore the cutting positions of a plurality of PVC pipelines can be attached to one another to form the multidirectional PVC pipeline. The PVC pipeline manufacturing process comprises the following steps that S1, a plurality of PVC pipelines are sequentially placed in a manufacturing device in a butt joint mode; s2, the butted PVC pipelines are cut through a manufacturing device; and S3, the cut PVC pipeline is attached through a manufacturing device to form the multidirectional PVC pipeline.

Description

Technical Field

[0001] This invention relates to the field of PVC pipes, and more specifically to a PVC pipe and its manufacturing process. Background Technology

[0002] PVC pipes belong to the polyvinyl chloride pipe family. They are mainly made by pressing polyvinyl chloride resin, stabilizers, and other additives under high temperature. They are often used in drainage, liquid transportation, and gas and vacuum system transmission. Generally, they are divided into two types: soft and rigid. Soft PVC pipes are often used for floors, ceilings, or leather surfaces. However, the physical properties of plasticizers limit the application of PVC pipes. Rigid PVC pipes do not contain plasticizers, are easier to mold, and have excellent physical properties. However, in the current technology for manufacturing PVC pipes, there is a lack of technology to symmetrically cut one end of the PVC pipe, which would facilitate the bonding of multiple cuts to form multi-directional PVC pipes. Summary of the Invention

[0003] The purpose of this invention is to provide a PVC pipe and its manufacturing process, which allows for symmetrical oblique cutting of one end of the PVC pipe, thereby facilitating the formation of a multi-directional PVC pipe by fitting the cuts of multiple PVC pipes together.

[0004] The objective of this invention is achieved through the following technical solution: a PVC pipe manufacturing process, which includes the following steps:

[0005] S1: Place multiple PVC pipes sequentially into the manufacturing device;

[0006] S2: The PVC pipes to be joined are cut using a manufacturing device;

[0007] S3: The cut PVC pipes are bonded together using a manufacturing device to form a multi-directional PVC pipe.

[0008] The detailed steps of S1 are as follows:

[0009] S11: Place the middle section of a batch of PVC pipes of uniform length inside the manufacturing device;

[0010] S12: The PVC pipe is clamped and fixed by a manufacturing device.

[0011] The detailed steps of S2 are as follows:

[0012] S21: The ends of the clamped and fixed PVC pipe are cut obliquely in a symmetrical manner from top to bottom using a manufacturing device;

[0013] S22: The cut pipe is clamped again and placed in a circular motion using a manufacturing device.

[0014] The detailed steps of S3 are as follows:

[0015] S31: Apply glue to the cut edges of multiple PVC pipes after cutting using a manufacturing device;

[0016] S32: After coating, multiple cut PVC pipes are glued together by a manufacturing device to form a multi-directional PVC pipe.

[0017] The length of the PVC pipe described in S1 shall not exceed 1m.

[0018] The adhesive described in S31 is an epoxy resin adhesive.

[0019] The PVC pipes prepared using the above process have polyvinyl chloride as their main raw material. Attached Figure Description

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.

[0021] Figure 1 This is a schematic diagram of the overall process flow of a PVC pipe manufacturing process according to the present invention;

[0022] Figure 2 This is a schematic diagram of the first part of a PVC pipe manufacturing process according to the present invention;

[0023] Figure 3 This is a schematic diagram of the second part of the process flow of a PVC pipe manufacturing process of the present invention;

[0024] Figure 4 This is a schematic diagram of the third part of a PVC pipe manufacturing process according to the present invention;

[0025] Figure 5 This is a partial structural schematic diagram of the manufacturing frame of the present invention;

[0026] Figure 6 This is a partial structural schematic diagram of the rotating column of the present invention;

[0027] Figure 7 This is a partial structural schematic diagram of the sliding frame of the present invention;

[0028] Figure 8 This is a partial structural schematic diagram of the baffle of the present invention;

[0029] Figure 9 This is a partial structural schematic diagram of the multi-way frame of the present invention;

[0030] Figure 10 This is a partial structural schematic diagram of the circular frame of the present invention;

[0031] Figure 11 This is a partial structural schematic diagram of the tilting frame of the present invention;

[0032] Figure 12 This is a partial structural schematic diagram of the fixing frame of the present invention;

[0033] Figure 13 and Figure 14 These are all schematic diagrams of the overall structure of the present invention.

[0034] In the figure: manufacturing rack 101; flipping rack 102; placement rack 103; rotating column 104; sliding frame 201; clamping frame 202; baffle 301; arc frame 302; connecting pipe 303; pressing strip 304; short rod 401; circular frame 402; short pipe 403; tilting rack 501; power rod 502; cutting disc 503; fixing rack 601. Detailed Implementation

[0035] A PVC pipe manufacturing process includes the following steps:

[0036] S1: Place multiple PVC pipes sequentially into the manufacturing device;

[0037] S2: The PVC pipes to be joined are cut using a manufacturing device;

[0038] S3: The cut PVC pipes are bonded together using a manufacturing device to form a multi-directional PVC pipe.

[0039] The detailed steps of S1 are as follows:

[0040] S11: Place the middle section of a batch of PVC pipes of uniform length inside the manufacturing device;

[0041] S12: The PVC pipe is clamped and fixed by a manufacturing device.

[0042] The detailed steps of S2 are as follows:

[0043] S21: The ends of the clamped and fixed PVC pipe are cut obliquely in a symmetrical manner from top to bottom using a manufacturing device;

[0044] S22: The cut pipe is clamped again and placed in a circular motion using a manufacturing device.

[0045] The detailed steps of S3 are as follows:

[0046] S31: Apply glue to the cut edges of multiple PVC pipes after cutting using a manufacturing device;

[0047] S32: After coating, multiple cut PVC pipes are glued together by a manufacturing device to form a multi-directional PVC pipe.

[0048] The length of the PVC pipe described in S1 shall not exceed 1m.

[0049] The adhesive described in S31 is an epoxy resin adhesive.

[0050] The manufacturing apparatus includes a manufacturing frame and a rotating column rotatably connected to the rear side of the manufacturing frame. A tilting frame is fixedly connected to the right side of the rotating column, and an inclined frame is slidably connected to the front side of the manufacturing frame. A power rod is rotatably connected to the lower side of the inclined frame, and a cutting disc is fixedly connected to the bottom of the power rod.

[0051] This section is based on Figure 1-11 The working process described in sections 13 and 14 is as follows: To facilitate symmetrical oblique cutting of one end of the PVC pipe, thereby helping to form a multi-directional PVC pipe by fitting the cut ends of multiple PVC pipes together, a rotating column is rotatably connected to the rear side of the manufacturing frame during use. The left side of the rotating column is fixedly connected to the output shaft of the first motor via a coupling. The first motor is fixedly connected to the rear side of the manufacturing frame via bolts, and the right side of the rotating column is fixedly connected to a flipping frame for placing the cut PVC pipes. A total of four cut PVC pipes are placed, and the four PVC pipes with symmetrical oblique cuts at their ends cooperate and fit together to form a multi-directional pipe. Further, when symmetrically obliquely cutting the joined PVC pipes, a laterally movable tilting frame is slidably connected to the front side of the manufacturing frame. An tilting device is rotatably connected to the bottom of the tilting frame. The system consists of a power rod with a second motor's output shaft fixedly connected to its upper side via a coupling. This second motor is also fixedly connected to a tilting frame via a coupling. A cutting disc is bolted to the lower side of the power rod. Driving the second motor causes the cutting disc on the power rod to rotate, and the cutting disc tilts synchronously with the power rod. A manual hand grasps the handle on the upper side of the tilting frame to move it laterally. The cutting disc then performs a diagonal cut on the upper side of one end of the PVC pipe. The pipe is then rotated 180°, and the cutting disc again cuts the upper side of the cut end, creating a symmetrical cutting process. This process is repeated for each of the four PVC pipes cut in turn, and the four pipes are then bonded together along the cut lines on the rotating frame to form a multi-directional PVC pipe, thus improving the efficiency of batch processing.

[0052] The flipping frame is provided with a docking frame on the upper and lower sides and the front and rear sides, and each docking frame has a round hole on its outer side.

[0053] This section is based on Figure 1-11The working process described in 13 and 14 is as follows: When each symmetrically cut PVC pipe is stably connected to the flipping frame, a connecting frame is set on the upper and lower sides and the front and rear sides of the flipping frame. The cut PVC pipe is entered into the flipping frame from the rear end of the cut through the round hole on each connecting frame, so that each PVC pipe entering the flipping frame can be easily attached and fixed together.

[0054] A placement rack is fixedly connected to the right side of the manufacturing rack, and an arc-shaped frame is provided on the upper side of the placement rack.

[0055] This section is based on Figure 1-11 The working process described in 13 and 14 is as follows: When the PVC pipes are fixedly placed, a placement frame is fixedly connected to the right side of the manufacturing frame by welding, so that the pipes are inserted into the arc-shaped frame placed on the upper side of the placement frame, which facilitates stable cutting when the cutting disc moves laterally.

[0056] This section is based on Figure 1-11 The working process described in 13 and 14 is as follows: a sliding frame is slidably connected to each docking frame, and a mirror-set clamping frame is slidably connected to the front and rear sides of the middle of each sliding frame. The rear sides of the two clamping frames on each sliding frame are fixedly connected to the two movable ends of a first bidirectional push rod through flanges. The fixed ends of the four first bidirectional push rods are fixedly connected to the rear sides of the four sliding frames through bolts. The left side of each sliding frame is fixedly connected to the movable end of a first electric push rod through flanges. The fixed ends of the four first electric push rods are fixedly connected to the circumferential direction on the left side of the flipping frame through flanges.

[0057] To further explain, when each cut pipe enters the flipping frame horizontally, the first bidirectional push rod at the corresponding position is driven, causing the clamping frames on both sides to move towards the center and clamp the pipe through the two clamping frames. At this time, the first electric push rod is driven, causing the sliding frame located on the movable end of the first electric push rod to move towards the center of the flipping frame in advance. Then, the first motor is driven, causing the flipping frame on the rotating column to rotate and adjust the angle. Further, the two clamping frames in the next sliding frame are used to clamp the next cut PVC pipe, and the above work is repeated until the four PVC pipes are sequentially connected into the flipping frame and fit together to form a multi-directional pipe.

[0058] This section is based on Figure 1-11 The working process described in 13 and 14 is as follows: A mirror-shaped fixed frame is slidably connected to the left and right sides of the arc-shaped frame of the placement rack. The bottom of the two fixed frames is fixedly connected to the two movable ends of the second bidirectional push rod through flanges. The fixed end of the second electric push rod is fixedly connected to the middle of the placement rack through bolts.

[0059] To further explain, when the PVC pipe placed on the placement rack is fixed and facilitates stable cutting, the second electric push rod is driven to move the two fixing racks relative to each other, stably clamping the pipe placed on the placement rack, and allowing the cut pipe to enter each docking rack under manual operation. The structure is simple and easy to use, preventing the pipe from moving during the cutting work and affecting the symmetry of the subsequent bonding work.

[0060] This section is based on Figure 1-9 The working process described in 13 and 14 is as follows: each of the four corners of the flipping frame is slidably connected to an inclined baffle. Each baffle is fixedly connected to an arc-shaped frame on its lower side. Each arc-shaped frame has multiple small holes evenly distributed on its front and rear sides. The top of each arc-shaped frame is fixed with bolts and connected to a connecting pipe. The top of each connecting pipe is fixedly connected with bolts to the upper side of the corresponding baffle. Each connecting pipe is slidably connected to a pressing strip. The left side of each baffle is fixedly connected with the movable end of a second electric push rod through a flange. The fixed end of each second electric push rod is fixedly connected with flanges at the four corners of the flipping frame.

[0061] The baffles on the front side are set parallel to the cutting disc. The angle formed when the four baffles move toward the center of the flipping frame and fit together can correspond to the cut surfaces of the PVC pipes on the upper and lower sides of the end being cut.

[0062] To further explain, when applying glue to the cut sections of each pipe within the sliding frame to facilitate bonding along the glue lines to form a multi-directional PVC pipe, each second electric actuator is pre-driven to bring the baffles on their movable ends closer together and abut. At this time, the four symmetrically cut PVC pipes are simultaneously bonded to both sides of the arc-shaped frame at the bottom of each baffle. Then, each pressing bar is manually pressed to squeeze the glue from each connecting pipe into the corresponding arc-shaped frame, and the glue is squeezed out onto the cut surface of each PVC pipe through the small holes along the trajectory of the arc-shaped frame. Afterward, each second electric actuator is driven again to retract each baffle to its original position, and then each first electric actuator is driven to bond the pipes within each sliding frame together with glue, improving the airtightness of the formed multi-directional PVC pipe. The structure is simple and easy to use, which is conducive to the mass production of multi-directional PVC pipes.

[0063] This section is based on Figure 1-10The working process described in 13 and 14 is as follows: a short rod is fixedly connected to the right side of the manufacturing frame, a circular frame is fixedly connected to the left side of the short rod, multiple air ducts are evenly fixed and connected to the left side of the circular frame along the circumference, a short pipe is fixed and connected to the right side of the upper side of the circular frame, a fan is fixed and connected to the right side of the short pipe, and the fan is fixedly connected to the middle of the short rod by bolts.

[0064] To further explain, when rapidly drying the joints of multiple PVC pipes to improve bonding efficiency, a fan is driven to send air from a short pipe into a circular frame. The air duct located on the left side of the circular frame in the circumferential direction then specifically dries the joints of the multiple PVC pipes, improving the efficiency of rapid molding and the stability of bonding.

[0065] The PVC pipes prepared using the above process have polyvinyl chloride as their main raw material.

Claims

1. A PVC pipe manufacturing process, characterized in that, The process includes the following steps: S1: Place multiple PVC pipes sequentially into the manufacturing device; S2: The PVC pipes to be joined are cut using a manufacturing device; S3: The cut PVC pipes are bonded together using a manufacturing device to form a multi-directional PVC pipe.

2. The process of claim 1, wherein: The detailed steps of S1 are as follows: S11: Place the middle section of a batch of PVC pipes of uniform length inside the manufacturing device; S12: The PVC pipe is clamped and fixed by a manufacturing device.

3. The process of claim 1, wherein: The detailed steps of S2 are as follows: S21: The ends of the clamped and fixed PVC pipe are cut obliquely in a symmetrical manner from top to bottom using a manufacturing device; S22: The cut pipe is clamped again and placed in a circular motion using a manufacturing device.

4. The process of claim 1, wherein: The detailed steps of S3 are as follows: S31: Apply glue to the cut edges of multiple PVC pipes after cutting using a manufacturing device; S32: After coating, multiple cut PVC pipes are glued together by a manufacturing device to form a multi-directional PVC pipe.

5. The process of claim 1, wherein: The length of the PVC pipe described in S1 shall not exceed 1m.

6. The process of claim 4, wherein: The adhesive described in S31 is an epoxy resin adhesive.

7. The process of claim 1, wherein: The manufacturing apparatus includes a manufacturing frame (101) and a rotating column (104) rotatably connected to the rear side of the manufacturing frame (101). A flipping frame (102) is fixedly connected to the right side of the rotating column (104). A tilting frame (501) is slidably connected to the front side of the manufacturing frame (101). A power rod (502) is rotatably connected to the lower side of the tilting frame (501). A cutting disc (503) is fixedly connected to the bottom of the power rod (502).

8. The process of claim 7, wherein: The flipping frame (102) is provided with a docking frame on the upper and lower sides and the front and rear sides respectively, and each docking frame is provided with a round hole on the outer side.

9. The process of claim 8, wherein: A placement rack (103) is fixedly connected to the right side of the manufacturing rack (101), and an arc-shaped frame is provided on the upper side of the placement rack (103).

10. The PVC pipe prepared by the process according to any one of claims 1-9, characterized in that, The main raw material for this PVC pipe is polyvinyl chloride.

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