Device for sticking anticorrosion tape on the end of anticorrosion steel pipe

Abstract

The utility model relates to a kind of anticorrosive pipe end pasting paper devices in anticorrosive steel pipe, belong to spiral submerged arc steel pipe anticorrosive spraying technical field, including inner side plate and outer side plate, inner side plate and outer side plate between rotation setting adhesive tape wheel and auxiliary wheel, adhesive tape wheel is used to install adhesive tape, auxiliary wheel is used to compact and stick adhesive tape on steel pipe inner wall;The height of outer side plate is greater than inner side plate, and outer side plate can be used to adhere with steel pipe end, positioning the device;The utility model is convenient and fast, improves pipe end pasting paper efficiency, and each steel pipe pasting paper operation only needs 3-4 seconds;The precision of using the utility model pasting paper is high, and stability is strong, can make adhesive tape paper evenly adhere on steel pipe inner wall, without wrinkle, not easy to fall off;The utility model is easy to disassemble and assemble, easy to manufacture, and low in cost;The utility model is suitable for steel pipe diameter range, and pipe diameter φ508-φ1626mm can be used.

Description

Technical Field

[0001] This utility model relates to a device for applying anti-corrosion stickers to the end of an anti-corrosion steel pipe, belonging to the field of anti-corrosion spraying technology for spiral submerged arc steel pipes. Background Technology

[0002] The internal anti-corrosion spraying process for steel pipes mainly includes internal rust removal, internal purging, pipe end sticker application, internal spraying, curing, and finished product inspection. The inner surface of the steel pipe is usually coated with a pre-reserved section; for example, the required pre-reserved section length for national pipeline projects is 55±5mm. The length of this pre-reserved section is controlled by applying a sticker to the pipe end.

[0003] Typically, before the internal spraying process, a ring of masking tape is applied along the inner surface of the steel pipe near the end. After spraying, the tape is removed, thus revealing the allowable length at the pipe end. Current processes rely solely on manual tape application, which results in the tape not adhering smoothly to the inner surface of the steel pipe and is prone to wrinkling, leading to uneven width and inconsistent allowable length. Furthermore, manual tape application is slow, requires a high level of operator skill, and is inefficient and inconsistent. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide a device for applying anti-corrosion stickers to the end of anti-corrosion steel pipes, which is easy to operate and improves the efficiency and stability of applying stickers to the pipe ends.

[0005] The anti-corrosion pipe end sticker device of this utility model includes an inner side plate and an outer side plate. A tape wheel and an auxiliary wheel are rotatably arranged between the inner side plate and the outer side plate. The tape wheel is used to install the tape, and the auxiliary wheel is used to press the tape and stick it to the inner wall of the steel pipe. The height of the outer side plate is greater than that of the inner side plate. The outer side plate can be used to fit with the end of the steel pipe and to position the device.

[0006] The technical solution of this utility model is to provide a device for applying anti-corrosion paper to the end of an anti-corrosion steel pipe. The tape is placed on the tape pulley, the tape is pulled out, and the tape is wrapped around the auxiliary wheel with the adhesive side facing outward. Then, the tape is attached to the end of the steel pipe through the outer side plate. After positioning the device, the adhesive side of the tape is attached to the inner wall of the steel pipe. The device is rotated one revolution along the circumference of the steel pipe to complete the application of the paper.

[0007] Preferably, there are two auxiliary wheels. The front auxiliary wheel pulls the adhesive tape off and sticks it to the inner wall of the steel pipe, and the rear auxiliary wheel further presses the adhesive tape firmly so that the adhesive tape is flatly attached to the inner wall of the steel pipe.

[0008] Preferably, the auxiliary wheel has an auxiliary wheel axle through its center, the auxiliary wheel is rotatably connected to the auxiliary wheel axle through a bearing, the two ends of the auxiliary wheel axle are threaded, and the two ends of the auxiliary wheel axle are connected to the inner side plate and the outer side plate respectively through nuts.

[0009] Furthermore, spacer rings are provided on the outer sides of the bearings on both sides of the auxiliary wheel, and the spacer rings are sleeved on the shaft of the auxiliary wheel.

[0010] Preferably, the belt pulley is rotatably connected to the inner and outer side plates via a belt pulley shaft.

[0011] Preferably, both the inner and outer side plates are isosceles trapezoidal structures, and the top surfaces of the inner and outer side plates overlap each other.

[0012] The advantages of this utility model compared with the prior art are: 1. This utility model is convenient and quick to use, improving the efficiency of sticker application on pipe ends. Each steel pipe only requires 3-4 seconds to apply stickers. 2. The stickers using this utility model have high precision and strong stability, allowing the tape to be evenly adhered to the inner wall of the steel pipe without wrinkles and not easily falling off. 3. This utility model is easy to assemble and disassemble, easy to manufacture, and has a low manufacturing cost; 4. This utility model is applicable to a wide range of steel pipe diameters, from φ508 to φ1626mm. Attached Figure Description

[0013] Figure 1 This is a schematic diagram showing the state of this utility model in use; Figure 2 This is a cross-sectional view illustrating the state of this utility model during use; Figure 3 This is a schematic diagram of the structure of this utility model; Figure 4 This is an exploded view of this utility model.

[0014] In the diagram: 1. Outer side plate; 2. Auxiliary wheel; 3. Inner side plate; 4. Steel pipe; 5. Pulley; 6. Pulley; 7. Nut; 8. Pulley axle; 9. Spacer ring; 10. Bearing; 11. Auxiliary wheel axle. Detailed Implementation

[0015] The present invention will be further described below with reference to specific embodiments.

[0016] like Figures 1-4 As shown, this embodiment is achieved through the following technical solution: it includes an inner side plate 3 and an outer side plate 1, with a belt pulley 5 and an auxiliary wheel 2 rotatably arranged between the inner side plate 3 and the outer side plate 1. The belt pulley 5 is used to install the belt 6, and the auxiliary wheel 2 is used to compact the belt and stick it to the inner wall of the steel pipe 4. The belt pulley 5 and the auxiliary wheel 2 are both made of high-density polyurethane material. The height of the outer side plate 1 is greater than that of the inner side plate 3, and the outer side plate 1 can be used to fit with the end of the steel pipe 4 for positioning of the device.

[0017] In this embodiment, there are two auxiliary wheels 2. The front auxiliary wheel pulls the adhesive tape off and sticks it to the inner wall of the steel pipe 4. The rear auxiliary wheel then presses the adhesive tape firmly so that it is flatly attached to the inner wall of the steel pipe 4.

[0018] The auxiliary wheel 2 has an auxiliary wheel shaft 11 through its center. The auxiliary wheel 2 is rotatably connected to the auxiliary wheel shaft 11 through a bearing 10, which is a deep groove ball bearing. The auxiliary wheel shaft 11 has threads at both ends, and the two ends of the auxiliary wheel shaft 11 are connected to the inner side plate 3 and the outer side plate 1 respectively through nuts 7.

[0019] Spacer rings 9 are provided on the outer sides of the bearings 10 on both sides of the auxiliary wheel 2, and the spacer rings 9 are sleeved on the auxiliary wheel shaft 11. The belt pulley 5 is rotatably connected to the inner side plate 3 and the outer side plate 1 through the belt pulley shaft 8. The inner side plate 3 and the outer side plate 1 are both isosceles trapezoidal structures, and the top surfaces of the inner side plate 3 and the outer side plate 1 overlap each other.

[0020] The method of using this utility model is as follows: 1. First, put the round tape 6 onto the tape pulley 5, with the adhesive side of the tape facing outwards, and wrap it around the two auxiliary pulleys 2 one by one; 2. Then, attach the outer side plate 1 tightly to the end of the steel pipe 4, and attach the adhesive side of the tape to the inner wall of the steel pipe 4. 3. At this point, the operator holds the top of the device and presses the two auxiliary wheels 2 firmly onto the inner wall of the steel pipe 4. Then, the operator holds the device and rotates it around the circumference of the steel pipe 4 to complete the sticker application.

[0021] The sticker can start at any point on the steel pipe.

[0022] Of course, the above description is only a preferred embodiment of this utility model and should not be considered as limiting the scope of the embodiments of this utility model. This utility model is not limited to the above examples, and all equivalent changes and improvements made by those skilled in the art within the scope of this utility model should be included in the patent coverage of this utility model.

Claims

1. A device for attaching anti-corrosion stickers to the end of an anti-corrosion steel pipe, characterized in that, It includes an inner side plate (3) and an outer side plate (1), with a belt pulley (5) and an auxiliary wheel (2) rotatably arranged between the inner side plate (3) and the outer side plate (1); the height of the outer side plate (1) is greater than that of the inner side plate (3); The auxiliary wheel (2) has an auxiliary wheel shaft (11) through its center. The auxiliary wheel (2) is rotatably connected to the auxiliary wheel shaft (11) through a bearing (10). The two ends of the auxiliary wheel shaft (11) are threaded. The two ends of the auxiliary wheel shaft (11) are connected to the inner side plate (3) and the outer side plate (1) respectively through nuts (7).

2. The anticorrosion pipe end taping apparatus for anticorrosion steel pipes according to claim 1, characterized by The number of auxiliary wheels (2) is two.

3. The anticorrosion pipe end taping apparatus for anticorrosion steel pipes according to claim 2, characterized by The auxiliary wheel (2) has a spacer ring (9) on the outside of the bearing (10) on both sides, and the spacer ring (9) is sleeved on the auxiliary wheel shaft (11).

4. The device of claim 1, wherein the device is a device for applying an end band to an end of a pipe. The belt pulley (5) is rotatably connected to the inner side plate (3) and the outer side plate (1) via the belt pulley shaft (8).

5. The anticorrosion pipe end taping apparatus of claim 4, wherein The inner plate (3) and the outer plate (1) are both isosceles trapezoidal structures, and the top surfaces of the inner plate (3) and the outer plate (1) overlap each other.

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