Corrugated pipe and manufacturing method thereof

Abstract

The invention relates to the field of corrugated pipe production, in particular to a corrugated pipe and a manufacturing method thereof.The corrugated pipe comprises a pipe body, a T-shaped protruding block is arranged on one side of the pipe body, a groove is formed in the other side of the pipe body, and the length of the T-shaped protruding block and the length of the groove are consistent with the length of the pipe body. The forming roller is located in the middle of the two forming covers, a first forming groove is formed in one forming cover, a second forming groove is formed in the other forming cover, the manufacturing device further comprises two embossing covers, the forming roller is located in the middle of the two embossing covers, and a plurality of arc-shaped protruding edges are arranged on the inner walls of the two embossing covers. The two forming covers are each rotationally connected with two hinge rods, the two ends of the two hinge rods are rotationally connected to the two embossing covers correspondingly, a corrugated pipe cannot be automatically opened during winding, and the corrugated pipe winding device has the advantages that the occupied space is reduced, and carrying is convenient.

Description

Technical Field

[0001] The invention relates to the field of bellows production, and in particular to a bellows and a manufacturing method thereof. Background Art

[0002] A corrugated tube is a new type of tube with an annular outer wall and a smooth inner wall. It is also called a corrugated tube because its inner and outer surfaces are annular corrugated. It protects cables from damage and has the characteristics of good wear resistance and corrosion resistance. Corrugated tubes are usually made of rubber or plastic as raw materials. Conventional corrugated tubes themselves are elastic. When rolling up, users need to put the corrugated tubes into a backpack or tie them with ropes, which is inconvenient to carry and wastes time to roll them up. Therefore, in view of the above defects, this application proposes a new type of corrugated tube. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a corrugated tube and a method for manufacturing the same. The corrugated tube of the present invention will not automatically open when rolled up, and has the advantages of reducing occupied space and being easy to carry.

[0004] A corrugated pipe comprises a pipe body, one side of the pipe body is provided with a T-shaped protrusion, the other side of the pipe body is provided with a groove, and the lengths of the T-shaped protrusion and the groove are consistent with the length of the pipe body.

[0005] A manufacturing device for a corrugated pipe comprises two forming covers and a forming roller. The forming roller is located in the middle of the two forming covers. A first forming groove is provided inside one of the forming covers, and a second forming groove is provided inside the other forming cover.

[0006] The manufacturing device also includes two embossing covers, the forming roller is located in the middle of the two embossing covers, and a plurality of arc-shaped convex ridges are arranged on the inner walls of the two embossing covers.

[0007] The two forming covers are both rotatably connected with two hinged rods, and the two ends of the two hinged rods are respectively rotatably connected with the two embossing covers.

[0008] The manufacturing device also includes a base, on which a double-head cylinder is fixedly connected, and two forming covers are respectively fixedly connected to two moving ends of the double-head cylinder.

[0009] The two molding covers are both fixedly connected with a feed pipe, and the feed pipe is connected to the screw extruder.

[0010] The interior of the forming roller is a hollow structure, a connecting pipe is fixedly connected to the forming roller, and a plurality of nozzles are installed on the surface of the forming roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0012] Figure 1and Figure 2 It is a schematic diagram of the overall structure of a bellows;

[0013] Figure 3 and Figure 4 It is a structural schematic diagram of a manufacturing device;

[0014] Figure 5 is a structural schematic diagram of a hinged rod;

[0015] Figure 6 It is a structural schematic diagram of the forming roller;

[0016] Figure 7 It is a schematic diagram of the structure of the arc-shaped convex ridge;

[0017] Figure 8 It is a schematic diagram of the structure of the molding cover. DETAILED DESCRIPTION

[0018] The present invention is described in detail with reference to the accompanying drawings in the embodiments of the present invention.

[0019] See also Figure 1-2 ,

[0020] A corrugated tube includes a tube body 101. A T-shaped protrusion 102 is arranged on one side of the tube body 101, and a groove 103 is arranged on the other side of the tube body 101. The lengths of the T-shaped protrusion 102 and the groove 103 are consistent with the length of the tube body 101.

[0021] The T-shaped protrusion 102 and the groove 103 are both integrally formed with the tube body 101 by injection molding. The conventional corrugated tube itself is elastic. When rolling up, the user needs to put the corrugated tube into a backpack or tie it with a rope, which is inconvenient to carry and wastes time to roll up. When the corrugated tube of the present application needs to roll up the tube body 101, the user curls the tube body 101 so that the T-shaped protrusion 102 on one side is inserted into the groove 103 on the other side. Then, when the tube body 101 is rolled up, it can maintain its shape with the cooperation of the T-shaped protrusion 102 and the groove 103 and will not open automatically. Compared with conventional corrugated tubes, it can reduce the occupied space and has the characteristic of being easy to carry.

[0022] See also Figure 5-8 ,

[0023] A manufacturing device for a corrugated pipe includes two forming covers 401 and a forming roller 302 . The forming roller 302 is located between the two forming covers 401 . A first forming groove 402 is provided inside one of the forming covers 401 , and a second forming groove 403 is provided inside the other forming cover 401 .

[0024] When using the manufacturing device, the two molding covers 401 are controlled to be interlocked with each other so that the two molding covers 401 wrap the molding roller 302, and there is a gap between the two molding covers 401 and the molding roller 302. At this time, molten rubber is injected into the gap between the two molding covers 401 and the molding roller 302, thereby realizing the function of injection molding of the tube body 101. At the same time, the molten rubber enters the first molding groove 402 and the second molding groove 403, and can form a T-shaped protrusion 102 and a groove 103 on the surface of the tube body 101 respectively, thereby realizing the manufacture of the corrugated tube. After the corrugated tube is cooled and formed, the two molding covers 401 are controlled to separate.

[0025] See also Figure 7 ,

[0026] The manufacturing device further comprises two embossing covers 501 , the forming roller 302 is located in the middle of the two embossing covers 501 , and a plurality of arc-shaped ridges 502 are arranged on the inner walls of the two embossing covers 501 .

[0027] After the tube body 101 is processed, the two embossed covers 501 are heated by an electric heating device, and then the two embossed covers 501 are controlled to move relative to each other and snap onto the surface of the tube body 101. The heated multiple arc-shaped ridges 502 can extrude corrugations on the surface of the tube body 101, and finally the processing of the corrugated tube is completed.

[0028] See also Figure 5 ,

[0029] The two forming covers 401 are both rotatably connected to two hinged rods 405 , and the two ends of the two hinged rods 405 are rotatably connected to the two embossing covers 501 .

[0030] When the two molding covers 401 are buckled together, the cooperation of multiple hinged rods 405 can drive the two embossed covers 501 to open automatically, which makes it easy to mold and manufacture the tube body 101. When corrugations need to be processed, the two molding covers 401 are controlled to separate. At this time, the two embossed covers 501 are automatically buckled on the tube body 101, and then corrugations can be processed on the tube body 101. In this process, it is only necessary to control the opening and closing of the two molding covers 401, and there is no need to control the two molding covers 401 separately, which reduces the operating steps and makes the overall production process more coherent.

[0031] See also Figure 4 ,

[0032] The manufacturing device also includes a base 201, to which a double-headed cylinder 202 is fixedly connected by bolts, and two forming covers 401 are respectively fixedly connected to two moving ends of the double-headed cylinder 202 by bolts.

[0033] By controlling the two moving ends of the double-headed cylinder 202 to contract, the two molding covers 401 can be driven to engage with each other, thereby realizing the function of injection molding of the tube body 101, and at the same time, the two embossing covers 501 are automatically opened.

[0034] See also Figure 3-4 ,

[0035] Feed pipes 404 are welded on the two molding covers 401 , and the feed pipes 404 are connected to the screw extruder.

[0036] The two feed pipes 404 are connected to a screw extruder, and the molten rubber is extruded by the screw extruder and enters the gap between the two molding covers 401 and the molding roller 302 through the two feed pipes 404 .

[0037] See also Figure 6 ,

[0038] The interior of the forming roller 302 is a hollow structure, a connecting pipe 301 is welded on the forming roller 302 , and a plurality of nozzles 303 are installed on the surface of the forming roller 302 .

[0039] When the bellows processing is completed, cooling oil is introduced into the connecting pipe 301 so that the cooling oil is evenly sprayed out through multiple nozzles 303, and then the cooling oil can enter between the bellows and the forming roller 302 to play a lubricating role, making it easier for the staff to remove the processed bellows from the forming roller 302.

[0040] See also Figure 3 ,

[0041] The connecting pipe 301 is rotatably connected to the base 201 via a bearing.

[0042] When taking out the bellows, the forming roller 302 is driven to rotate by controlling the connecting tube 301 and fixing the bellows, so that the bellows can be rotated out, reducing the friction between the bellows and the forming roller 302, and further speeding up the taking out of the bellows.

[0043] See also Figure 3 ,

[0044] The base 201 is fixedly connected with a driving motor 204 by means of bolts, and the output shaft of the driving motor 204 and the connecting pipe 301 are both fixedly connected with a gear 203 , and the two gears 203 are meshed for transmission.

[0045] The driving motor 204 drives one of the gears 203 to rotate, thereby driving the connecting pipe 301 to rotate. The connecting pipe 301 is connected to the hose through a bearing, so that cooling oil can be introduced into the connecting pipe 301 during its rotation.

[0046] A method for producing a corrugated pipe, the method comprising the following steps:

[0047] Step 1: Control the two forming covers 401 to buckle with each other so that the two forming covers 401 wrap the forming roller 302;

[0048] Step 2: injecting molten rubber into the gap between the two molding covers 401 and the molding roller 302;

[0049] Step 3: The molten rubber enters the first molding groove 402 and the second molding groove 403 to form a T-shaped protrusion 102 and a groove 103 on the surface of the tube body 101 respectively;

[0050] Step 4: The two embossed covers 501 are heated by an electric heating device, and then the two embossed covers 501 are controlled to move relative to each other and buckle onto the surface of the tube body 101, and the heated multiple arc-shaped ridges 502 are used to extrude corrugations on the surface of the tube body 101;

[0051] Step 5: Cooling oil is introduced into the connecting pipe 301 so that the cooling oil is uniformly sprayed out through the multiple nozzles 303, thereby allowing the cooling oil to enter between the bellows and the forming roller 302, and then the bellows is removed.

Claims

1. A corrugated pipe, characterized in that: The invention comprises a tube body (101), wherein one side of the tube body (101) is provided with a T-shaped protrusion (102), and the other side of the tube body (101) is provided with a groove (103), and the lengths of the T-shaped protrusion (102) and the groove (103) are consistent with the length of the tube body (101).

2. A corrugated pipe manufacturing device according to claim 1, characterized in that: It comprises two forming covers (401) and a forming roller (302), wherein the forming roller (302) is located in the middle of the two forming covers (401), one of the forming covers (401) is provided with a first forming groove (402), and the other forming cover (401) is provided with a second forming groove (403).

3. A corrugated tube according to claim 2, characterized in that: The manufacturing device further comprises two embossing covers (501), the forming roller (302) is located in the middle of the two embossing covers (501), and a plurality of arc-shaped ridges (502) are arranged on the inner walls of the two embossing covers (501).

4. A corrugated tube according to claim 3, characterized in that: The two molding covers (401) are both rotatably connected to two hinged rods (405), and the two ends of the two hinged rods (405) are respectively rotatably connected to the two embossing covers (501).

5. A corrugated tube according to claim 4, characterized in that: The manufacturing device further comprises a base (201), to which a double-headed cylinder (202) is fixedly connected, and two forming covers (401) are respectively fixedly connected to two movable ends of the double-headed cylinder (202).

6. A corrugated tube according to claim 5, characterized in that: The two molding covers (401) are both fixedly connected with a feed pipe (404), and the feed pipe (404) is connected to a screw extruder.

7. A corrugated tube according to claim 6, characterized in that: The interior of the molding roller (302) is a hollow structure, a connecting pipe (301) is fixedly connected to the molding roller (302), and a plurality of nozzles (303) are installed on the surface of the molding roller (302).

8. A corrugated tube according to claim 7, characterized in that: The connecting pipe (301) is rotatably connected to the base (201).

9. A corrugated tube according to claim 8, characterized in that: The base (201) is fixedly connected to a driving motor (204), and the output shaft of the driving motor (204) and the connecting pipe (301) are both fixedly connected to a gear (203), and the two gears (203) are meshed for transmission.

10. The method for producing a corrugated pipe according to claim 7, characterized in that: The method comprises the following steps: Step 1: controlling the two forming covers (401) to buckle with each other so that the two forming covers (401) wrap the forming roller (302); Step 2: injecting molten rubber into the gap between the two molding covers (401) and the molding roller (302); Step 3: The molten rubber enters the first molding groove (402) and the second molding groove (403), and forms a T-shaped protrusion (102) and a groove (103) on the surface of the tube body (101) respectively; Step 4: heating the two embossed covers (501) by means of an electric heating device, and then controlling the two embossed covers (501) to move relative to each other and engage with the surface of the tube body (101), and using the heated multiple arc-shaped ridges (502) to extrude corrugations on the surface of the tube body (101); Step 5: Cooling oil is introduced into the connecting pipe (301) so that the cooling oil is uniformly sprayed out through multiple nozzles (303), thereby allowing the cooling oil to enter between the bellows and the forming roller (302), and then the bellows is removed.

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