Conductive corrugated pipe production testing device

Abstract

The utility model provides a conductive corrugated pipe production testing device, which relates to the technical field of conductive corrugated pipe product quality, and is characterized in that a sealing rod penetrates into a conductive corrugated pipe, the inner cavity of the conductive corrugated pipe is blocked by the sealing rod, and an air cavity is formed in the conductive corrugated pipe, so that the conductive corrugated pipe is helped to be formed; the conductive corrugated pipe extruded from the forming machine is lapped on the flywheel component, so that the cooling distance of the conductive corrugated pipe extruded from the forming machine is effectively prolonged, the temperature of the conductive corrugated pipe at the position of the sealing rod is reduced, and the strain of the sealing rod to the inner wall of the conductive corrugated pipe is reduced; the technical problems that in the prior art, when a conductive metal rod penetrates through a pipe, friction is likely to happen between the conductive metal rod and the inner pipe wall which is not completely cooled, a conductive layer is pulled, the conductivity of the pipe loses efficacy, and products are scrapped are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of conductive bellows product quality, in particular to a conductive bellows production testing device. Background Art

[0002] During the extrusion process of the conductive corrugated tube, there is a process called pinhole leak detection, which is used to detect whether there are small holes in the tube. The positive electrode of the high-voltage DC voltage acts on the outer surface of the tube through a copper brush, and the grounded metal plugging component is installed inside the tube. Once there is a tiny hole in the tube, the current will pass through the hole and conduct to the plugging component, sending an alarm signal to the downstream equipment, causing the downstream equipment to stop producing defective products.

[0003] During this process, in order to discover the holes and introduce electric charges into the earth, there must be a conductive metal rod that acts as a plug.

[0004] However, the conductive metal rod passing through the tube is prone to friction with the inner tube wall that has not been completely cooled, which may damage the conductive layer and cause the conductivity of the tube to fail, resulting in the product being scrapped. Utility Model Content

[0005] The utility model aims to provide a production and testing device for a conductive corrugated pipe, so as to alleviate the technical problem in the prior art that a conductive metal rod passing through the pipe is prone to friction with the inner pipe wall that has not been completely cooled, thus damaging the conductive layer, causing the conductivity of the pipe to fail, and leading to the scrapping of the product.

[0006] The utility model provides a conductive corrugated pipe production and testing device, comprising: a forming machine, a sealing rod and a flywheel component;

[0007] The molding machine is used to produce and extrude a conductive corrugated tube, and the inner conductive layer of the conductive corrugated tube is electrically connected to the ground terminal of the molding machine;

[0008] The sealing rod is inserted into the conductive bellows, and the sealing rod is used to block the inner cavity of the conductive bellows, so that an air cavity is formed inside the conductive bellows between the sealing rod and the forming machine;

[0009] The flywheel component is located beside a side of the sealing rod away from the molding machine, and the conductive corrugated tube extruded from the molding machine is overlapped on the flywheel component.

[0010] In an alternative embodiment,

[0011] The flywheel component comprises a flywheel body and a flywheel frame;

[0012] The flywheel frame supports the flywheel body, and the flywheel body is configured to be able to rotate along its own axis direction to drive the conductive bellows to move.

[0013] In an alternative embodiment,

[0014] The height position of the flywheel body is higher than that of the molding machine.

[0015] In an alternative embodiment,

[0016] The sealing rod relies on the friction between the sealing rod and the conductive bellows so that the sealing rod will not move along with the movement of the conductive bellows.

[0017] In an alternative embodiment,

[0018] The conductive bellows production and testing device also includes a detection component;

[0019] The detection assembly is connected to the flywheel frame, and the detection assembly is used to detect the position of the sealing rod.

[0020] In an alternative embodiment,

[0021] The detection assembly includes a metal sensor and a connecting rod;

[0022] One end of the connecting rod is connected to the metal sensor, and the other end of the connecting rod is connected to the flywheel frame;

[0023] The sealing rod is made of metal material.

[0024] In an alternative embodiment,

[0025] The conductive bellows production test device also includes a pinhole leak detector;

[0026] The pinhole leak detector is arranged on the extrusion port side of the molding machine. The pinhole leak detector is configured to transmit current to the outer layer of the conductive bellows. When the outer layer of the conductive bellows has a through hole, the pinhole leak detector is connected to the inner conductive layer of the conductive bellows.

[0027] In an alternative embodiment,

[0028] When the grounding terminal of the molding machine detects the current from the pinhole leak detector, the molding machine stops extruding the conductive corrugated tube.

[0029] In an alternative embodiment,

[0030] The pinhole leak detector comprises a plurality of copper brushes, and the plurality of copper brushes are evenly arranged along the outer circumference direction of the conductive bellows.

[0031] In an alternative embodiment,

[0032] The end of the sealing rod has a round head.

[0033] The utility model provides a conductive bellows production and testing device, which inserts a sealing rod into the conductive bellows, uses the sealing rod to block the inner cavity of the conductive bellows, forms an air cavity in the conductive bellows, and helps the conductive bellows to be formed. In addition, the conductive bellows extruded from the forming machine is overlapped on the flywheel component, which effectively prolongs the cooling distance of the conductive bellows extruded from the forming machine, reduces the temperature of the conductive bellows at the position of the sealing rod, and reduces the damage to the inner wall of the conductive bellows caused by the sealing rod, thereby alleviating the technical problem in the prior art that the conductive metal rod is easily rubbed against the inner wall of the tube that has not been completely cooled when it is inserted into the tube, thereby damaging the conductive layer, causing the conductivity of the tube to fail, and leading to the scrapping of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the overall structure of a conductive bellows production and testing device provided in an embodiment of the utility model.

[0036] Icons: 10-conductive bellows; 100-forming machine; 200-pinhole leak detector; 300-sealing rod; 400-flywheel component; 410-flywheel body; 420-flywheel frame; 500-detection assembly; 510-metal sensor; 520-connecting rod. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0041] The inner layer of the conductive bellows 10 is a nylon material with carbon powder, which is used in automobile fuel system pipelines to avoid static electricity accumulation in the system. During the extrusion process of the conductive bellows 10, it is necessary to prevent the plugging component from pulling the inner wall of the tube to avoid damaging the conductive layer and causing conductive failure. However, the conductive metal rod is easily rubbed against the inner tube wall that has not been completely cooled when it is inserted into the tube, which will pull the conductive layer and cause the conductivity of the tube to fail, resulting in the scrapping of the product.

[0042] In view of this, if Figure 1 As shown, the conductive bellows 10 production and testing device provided in this embodiment includes: a molding machine 100, a sealing rod 300 and a flywheel component 400; the molding machine 100 is used to produce and extrude the conductive bellows 10. The molding machine 100 is a mature product of the prior art, which plays the role of producing the conductive bellows 10 and extruding the conductive bellows 10. The specific structure and model of the molding machine 100 will not be repeated here.

[0043] Since the inner layer material of the conductive bellows 10 contains carbon powder, which can be used for the conduction of electric charges, the inner conductive layer of the conductive bellows 10 is electrically connected to the grounding terminal of the forming machine 100. When the outer layer of the conductive bellows 10 has a through hole, the external current can flow into the inner conductive layer, and the grounding terminal of the forming machine 100 can detect the current flowing through the inner conductive layer. Therefore, it can be determined that the outer layer of the conductive bellows 10 has a through hole, the quality of the conductive bellows 10 is unqualified, the forming machine 100 stops working, and the production line stops production.

[0044] The sealing rod 300 is inserted into the conductive bellows 10, and is used to seal the inner cavity of the conductive bellows 10 so that an air cavity is formed inside the conductive bellows 10 between the sealing rod 300 and the molding machine 100, that is, an air cavity is formed in the front end cavity of the conductive bellows 10, which facilitates the molding of the conductive bellows 10 in the molding machine 100.

[0045] The flywheel component 400 is located on a side of the sealing rod 300 away from the molding machine 100 . There is a certain distance between the flywheel component 400 and the molding machine 100 . The conductive bellows 10 extruded from the molding machine 100 overlaps the flywheel component 400 , thereby increasing the cooling time of the conductive bellows 10 .

[0046] The conductive bellows 10 production and testing device provided in this embodiment inserts a sealing rod 300 into the conductive bellows 10, uses the sealing rod 300 to block the inner cavity of the conductive bellows 10, and forms an air cavity in the conductive bellows 10 to help the molding of the conductive bellows 10. In addition, the conductive bellows 10 extruded from the molding machine 100 is overlapped on the flywheel component 400, which effectively extends the cooling distance of the conductive bellows 10 extruded from the molding machine 100, reduces the temperature of the conductive bellows 10 at the position of the sealing rod 300, and reduces the strain on the inner wall of the conductive bellows by the sealing rod 300, thereby alleviating the technical problem in the prior art that the conductive metal rod is easily rubbed against the inner wall of the tube that has not been completely cooled when it is inserted into the tube, thereby damaging the conductive layer, causing the conductivity of the tube to fail, and leading to the scrapping of the product.

[0047] On the basis of the above embodiments, in an optional implementation manner, the conductive bellows 10 production test device provided in this embodiment also includes a pinhole leak detector 200; the pinhole leak detector 200 is arranged on the extrusion port side of the molding machine 100, and the pinhole leak detector 200 is configured to transmit current to the outer layer of the conductive bellows 10. When the outer layer of the conductive bellows 10 has a through hole, the pinhole leak detector 200 is connected to the inner conductive layer of the conductive bellows 10.

[0048] Specifically, a pinhole leak detector 200 is arranged on the extrusion port side of the molding machine 100. The pinhole leak detector 200 includes a plurality of copper brushes, which are evenly arranged along the outer circumference direction of the conductive bellows 10. The positive pole of the high-voltage DC voltage acts on the conductive bellows 10 through the copper brushes. When the conductive bellows 10 extruded from the molding machine 100 has a through hole, the pinhole leak detector 200 is connected to the inner conductive layer of the conductive bellows 10, and the current flows along the inner conductive layer to the grounding terminal of the molding machine 100, so that it can be known that the conductive bellows 10 has a through hole.

[0049] When the ground terminal of the molding machine 100 detects the current from the pinhole leak detector 200 , the molding machine 100 stops extruding the conductive corrugated tube 10 .

[0050] It should be noted that, in order to extend the cooling time of the conductive bellows 10 , a certain distance is required between the flywheel component 400 and the forming machine 100 . Preferably, the flywheel component 400 is disposed two meters behind the pinhole leak detector 200 .

[0051] In an optional embodiment, the flywheel component 400 includes a flywheel body 410 and a flywheel frame 420; the flywheel frame 420 supports the flywheel body 410, and the flywheel body 410 is configured to be able to rotate along its own axial direction. Specifically, the flywheel body 410 is installed on the flywheel frame 420 through a rotating shaft. The rotation of the flywheel body 410 can drive the conductive bellows 10 to move.

[0052] In an optional embodiment, the height position of the flywheel body 410 is higher than the molding machine 100, so that the height of the conductive bellows 10 overlapped on the flywheel body 410 is higher than the height of the conductive bellows 10 from the molding machine 100 base. Figure 1 As shown, the conductive bellows 10 is bent upward and overlapped on the flywheel body 410, and the sealing rod 300 is located in the upward bending section of the conductive bellows 10, so that the sealing rod 300 is inclined and close to the vertical direction. In the process of continuous movement of the conductive bellows 10, the sealing rod 300 relies on the friction between the sealing rod 300 and the conductive bellows 10 to support the sealing rod 300, that is, the friction between the sealing rod 300 and the conductive bellows 10 is equal to the self-weight of the sealing rod 300, so that the sealing rod 300 will not move with the movement of the conductive bellows 10, and the position of the sealing rod 300 is fixed to prevent the sealing rod 300 from being brought out.

[0053] In an optional embodiment, the end of the sealing rod 300 has a round head, and the friction between the round head and the conductive bellows 10 is small. The round head will not cross the flywheel body 410 with the movement of the conductive bellows 10, and can automatically maintain this position by relying on its own gravity.

[0054] In an optional embodiment, the production and testing device of the conductive bellows 10 further includes a detection component 500 ; the detection component 500 is connected to the flywheel frame 420 , and the detection component 500 is used to detect the position of the sealing rod 300 .

[0055] Specifically, the detection component 500 includes a metal sensor 510 and a connecting rod 520; one end of the connecting rod 520 is connected to the metal sensor 510, and the other end of the connecting rod 520 is connected to the flywheel frame 420. The metal sensor 510 is fixed to the flywheel frame 420 through the connecting rod 520, and the sealing rod 300 is set to a metal material.

[0056] When the metal sealing rod 300 is brought out of the flywheel body 410 due to the change in the inner diameter of the conductive bellows 10, the metal sensor 510 cannot sense the metal sealing rod 300, and the metal sensor 510 will alarm and stop production to prevent defective products from flowing out.

[0057] Since the metal sensor 510 is an existing mature product that detects metal targets through electromagnetic induction, the specific structure and model of the metal sensor 510 are not described in detail here.

[0058] In addition, in an optional implementation, an annular metal sensor 510 may be selected, and the conductive bellows 10 passes through the annular metal sensor 510 .

[0059] The conductive bellows 10 production test device provided in this embodiment ensures the original leakage detection function, while having a sealing function outside the molding machine 100, and can prevent the inner conductive layer of the conductive bellows 10 from contacting the added sealing rod 300 in a hot state, resulting in a decrease in conductivity after being stretched, thereby ensuring the molding of the conductive bellows 10 and effectively improving the production speed.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A conductive bellows production test device, characterized in that: include: A forming machine (100), a sealing rod (300) and a flywheel component (400); The molding machine (100) is used to produce and extrude a conductive corrugated tube (10), and the inner conductive layer of the conductive corrugated tube (10) is electrically connected to a ground terminal of the molding machine (100); The sealing rod (300) is inserted into the conductive bellows (10), and the sealing rod (300) is used to seal the inner cavity of the conductive bellows (10), so that an air cavity is formed inside the conductive bellows (10) between the sealing rod (300) and the molding machine (100); The flywheel component (400) is located beside a side of the sealing rod (300) away from the molding machine (100), and the conductive corrugated tube (10) extruded from the molding machine (100) is overlapped on the flywheel component (400).

2. The conductive corrugated pipe production and testing device according to claim 1, characterized in that: The flywheel component (400) comprises a flywheel body (410) and a flywheel frame (420); The flywheel frame (420) supports the flywheel body (410), and the flywheel body (410) is configured to be able to rotate along its own axis direction to drive the conductive bellows (10) to move.

3. The conductive corrugated pipe production and testing device according to claim 2, characterized in that: The flywheel body (410) is located at a height higher than that of the molding machine (100).

4. The conductive corrugated pipe production and testing device according to claim 3, characterized in that: The sealing rod (300) relies on the friction between itself and the conductive bellows (10) so that the sealing rod (300) will not move along with the movement of the conductive bellows (10).

5. The conductive corrugated pipe production and testing device according to claim 4, characterized in that: The conductive bellows production and testing device further comprises a detection component (500); The detection assembly (500) is connected to the flywheel frame (420), and the detection assembly (500) is used to detect the position of the sealing rod (300).

6. The conductive corrugated pipe production and testing device according to claim 5, characterized in that: The detection assembly (500) comprises a metal sensor (510) and a connecting rod (520); One end of the connecting rod (520) is connected to the metal sensor (510), and the other end of the connecting rod (520) is connected to the flywheel frame (420); The sealing rod (300) is made of metal material.

7. The conductive corrugated pipe production and testing device according to claim 1, characterized in that: The conductive bellows production test device also includes a pinhole leak detector (200); The pinhole leak detector (200) is arranged on the extrusion outlet side of the molding machine (100), and the pinhole leak detector (200) is configured to transmit current to the outer layer of the conductive bellows (10). When the outer layer of the conductive bellows (10) has a through hole, the pinhole leak detector (200) is connected to the inner conductive layer of the conductive bellows (10).

8. The conductive bellows production and testing device according to claim 7, characterized in that: When the grounding terminal of the molding machine (100) detects the current from the pinhole leak detector (200), the molding machine (100) stops extruding the conductive corrugated tube (10).

9. The conductive corrugated tube production and testing device according to claim 8, characterized in that: The pinhole leak detector (200) comprises a plurality of copper brushes, and the plurality of copper brushes are evenly arranged along the outer circumferential direction of the conductive bellows (10).

10. The conductive corrugated pipe production and testing device according to any one of claims 1 to 9, characterized in that: The end of the sealing rod (300) has a round head.

Images