Steel pipe plugging device

Abstract

This utility model provides a steel pipe plugging device, which features high automation, fast plugging speed, good oil scraping effect, high work efficiency, and low labor intensity. A transverse moving seat is mounted on the plugging mechanism base via a transverse moving seat mechanism; a lifting seat is mounted on the transverse moving seat via a lifting seat moving mechanism; a centering mechanism is mounted on the lifting seat; a push rod mechanism is located behind the centering mechanism; a push rod mechanism base plate is mounted on the lifting seat via a push rod moving mechanism; a push rod is fixedly mounted on the push rod mechanism base plate; the push rod is equipped with a sealing block, an air outlet, and a compressed air interface; a sealing joint is located on the lifting seat, between the centering mechanism and the push rod mechanism; the push rod interface and the steel pipe interface are fixed; a sealing ring is located between the push rod interface and the steel pipe interface; a plug feeding block is mounted on the lifting seat via a plug feeding block lifting mechanism, and the plug feeding block is located between the sealing joint and the push rod mechanism; an oil scraping plug feeding system is connected to the plug feeding block.

Description

Technical Field

[0001] This utility model relates to a steel pipe plugging device. Background Technology

[0002] Cold rolling is an important production process for seamless steel pipes. After pickling, the billet steel pipe undergoes cold rolling on a rolling mill. Through multiple rolling passes, the billet gradually deforms to achieve the required inner and outer diameter dimensions. After cold rolling, a large amount of rolling oil and iron filings remain on the inner wall of the steel pipe. The oil residue on the inner wall of the steel pipe puts significant pressure on the subsequent degreasing process, and oil leakage during the lifting and transportation of the steel pipe also affects the working environment. Therefore, degreasing treatment is necessary. After treatment with degreasing liquid, the oil stains remaining on the inner and outer walls of the steel pipe can be cleaned. After the degreasing process, a small amount of degreasing liquid remains on the inner wall of the steel pipe. How to remove the degreasing liquid remaining on the inner wall of the steel pipe to meet the requirements of subsequent heat treatment processes is an important issue. The traditional method is to manually operate an air gun to purge the inner wall of the steel pipe, as shown in Chinese Patent Application No. 202022496175.X, entitled "A Steel Pipe Oil Scraping Device". This method is labor-intensive, inefficient, and affects the production cycle. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings in the existing technology and provide a steel pipe plugging device with reasonable structural design, high degree of automation, fast plugging speed, good oil scraping effect, high work efficiency and low labor intensity.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows: a steel pipe plugging device, including a plugging machine, an oil scraper plug feeding system, a plugging mechanism base, a transverse shift seat, a transverse shift seat moving mechanism, a lifting seat, and a lifting seat moving mechanism; the transverse shift seat is mounted on the plugging mechanism base via the transverse shift seat moving mechanism; the lifting seat is mounted on the transverse shift seat via the lifting seat moving mechanism; the plugging machine includes a plug feeding block, a centering mechanism, a sealing joint, and a push rod mechanism; the centering mechanism is mounted on the lifting seat; the push rod mechanism is located behind the centering mechanism and includes a compressed air interface, a push rod moving mechanism, a push rod mechanism base plate, a sealing block, and a push rod; the push rod mechanism... The base plate is mounted on the lifting seat via a push rod moving mechanism; the push rod is fixedly mounted on the base plate of the push rod mechanism; the push rod is equipped with a sealing block, an air outlet, and a compressed air interface; the sealing joint is located on the lifting seat and between the centering mechanism and the push rod mechanism, and includes a push rod interface, a sealing ring, and a steel pipe interface; the push rod interface and the steel pipe interface are fixed, with the push rod interface facing the push rod mechanism and the steel pipe interface facing the centering mechanism; the sealing ring is located between the push rod interface and the steel pipe interface; the feed plug is mounted on the lifting seat via a feed plug lifting mechanism, and the feed plug is located between the sealing joint and the push rod mechanism; the oil scraper plug feeding system is connected to the feed plug.

[0005] The lifting seat moving mechanism of this utility model includes a drive motor and a screw jack. The drive motor and the screw jack are mounted on the transverse seat. The drive motor is connected to the screw jack, and the screw jack is connected to the lifting seat.

[0006] The centering mechanism described in this utility model includes a centering block moving mechanism and a centering block; the centering block is movably mounted on a lifting seat, and there is a pair of centering blocks arranged vertically opposite each other. Each of the pair of centering blocks is equipped with a separate centering block moving mechanism, and the centering block moving mechanism is connected to the centering block.

[0007] The oil scraper feeding system of this utility model is fixedly installed on the transverse seat. The oil scraper feeding system includes a feeder and a slide. The inlet section of the slide is connected to the outlet of the feeder, and the outlet section of the slide is connected to the lifting seat and connected to the feeder block.

[0008] The push rod of this utility model has a sealing block fixed in the middle, an air outlet for the push rod opened at the center and side of the front part, and a compressed air interface provided at the rear part.

[0009] The sealing ring described in this utility model is an inflatable sealing ring, and an air nozzle is provided on the sealing ring.

[0010] The bottom of the exit section of the slide described in this utility model is equipped with a vibrator.

[0011] The slide rail described in this utility model is equipped with a buffer plate.

[0012] Compared with the prior art, this utility model has the following advantages and effects: This utility model can realize automatic alignment, automatic sealing, automatic feeding and automatic plugging of steel pipes, and has the advantages of high automation, simple operation and high plugging efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the axonal structure of an embodiment of the present invention.

[0014] Figure 2 This is a side view structural diagram of an embodiment of the present utility model.

[0015] Figure 3 This is a partial axial side structural schematic diagram of an embodiment of the present utility model.

[0016] Figure 4 This is a partial top view of an embodiment of the present invention.

[0017] Figure 5 This is a schematic diagram of the push rod interface of an embodiment of the present invention.

[0018] Figure 6 This is a structural schematic diagram of the steel pipe interface of an embodiment of this utility model.

[0019] Figure 7 This is a cross-sectional structural schematic diagram of the steel pipe interface according to an embodiment of this utility model.

[0020] Figure 8 This is a schematic diagram of the sealing ring structure of an embodiment of this utility model.

[0021] Figure 9 This is a schematic diagram of the axonal structure of the push rod mechanism according to an embodiment of this utility model.

[0022] Figure 10 This is a side view of the push rod mechanism according to an embodiment of the present invention. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and through embodiments. The following embodiments are explanations of the present invention, but the present invention is not limited to the following embodiments.

[0024] This utility model embodiment includes a plugging machine 101, an oil scraper plug feeding system 102, a base 103, a transverse moving mechanism 104, a transverse moving seat 107, a lifting seat 110, and a lifting seat moving mechanism 113.

[0025] The transverse shift mechanism 104 is connected to the transverse shift seat 107 and the base 103. The transverse shift seat 107 is movably mounted on the base 103 via the transverse shift mechanism 104. The transverse shift mechanism 104 can drive the transverse shift seat 107 to move horizontally on the base 103, thereby driving the entire stopper 101 and the oil scraper feed system 102 to move horizontally on the base 103. The transverse shift mechanism 104 can adopt a conventional mechanism, and its specific structure will not be described in detail.

[0026] The lifting seat moving mechanism 113 is connected to the lifting seat 110 and the transverse seat 107. The lifting seat 110 is movably mounted on the transverse seat 107 via the lifting seat moving mechanism 113, which drives the lifting seat 110 to move up and down on the transverse seat 107. The lifting seat moving mechanism 113 includes a drive motor 109 and a screw jack 108. Both the drive motor 109 and the screw jack 108 are bolted to the transverse seat 107. The drive motor 109 is connected to the screw jack 108, and the lifting rod of the screw jack 108 is fixedly connected to the lifting seat 110. The drive motor 109 drives the screw jack 108 to move, and the screw jack 108 drives the lifting seat 110 to move up and down, thereby adjusting the height of the lifting seat 110. Furthermore, there are four screw jacks 108.

[0027] The stopper machine 101 includes a stopper lifting mechanism 105, a stopper feeding block 106, a centering mechanism 120, a sealing joint 116, and a push rod mechanism 117.

[0028] The centering mechanism 120 is mounted on the lifting base 110 and includes a centering block moving mechanism 111 and a centering block 112. The centering blocks 112 are movably mounted on the lifting base 110. There is a pair of centering blocks 112, arranged vertically opposite each other. Each pair of centering blocks 112 is equipped with a separate centering block moving mechanism 111, which is connected to and drives the centering block 112 to move. The centering block moving mechanism 111 is a pneumatic cylinder or an electric cylinder. Furthermore, the centering block 112 is made of polyurethane and is V-shaped. The centering blocks 112 clamp vertically to ensure that the center of the steel pipe 1 is aligned with the center of the sealing joint 116.

[0029] The push rod mechanism 117 is mounted on the lifting seat 110 and located behind the centering mechanism 120. The push rod mechanism 117 includes a compressed air interface 122, a push rod moving mechanism 124, a push rod mechanism base plate 125, a sealing block 126, and a push rod 127. The push rod moving mechanism 124 is connected to the push rod mechanism base plate 125 and the lifting seat 110. The push rod mechanism base plate 125 is movably mounted on the lifting seat 110 via the push rod moving mechanism 124. The push rod moving mechanism 124 can drive the push rod mechanism base plate 125 to move horizontally on the lifting seat 110, thereby driving the entire push rod mechanism 117 to move horizontally on the lifting seat 110. The push rod moving mechanism 124 uses a conventional motor gear and rack mechanism for drive. The push rod 127 is fixedly mounted on the push rod mechanism base plate 125 by bolts and is a hollow rod. A sealing block 126 is fixed in the middle of the push rod 127. The sealing block 126 is made of polyurethane. The center and side of the front part are provided with push rod air outlets 123, and the rear part is provided with a compressed air interface 122. Compressed air enters the push rod 127 through the compressed air interface 122 and is then ejected through the push rod air outlet 123 to perform the plugging action.

[0030] A sealing joint 116 is fixedly mounted on the lifting seat 110, located between the centering mechanism 120 and the push rod mechanism 117. The sealing joint 116 includes a push rod interface 128, a sealing ring 129, and a steel pipe interface 130. The steel pipe interface 130 is fixedly mounted on the lifting seat 110 by bolts. The push rod interface 128 and the steel pipe interface 130 are bolted together, with the push rod interface 128 facing the push rod mechanism 117 and the steel pipe interface 130 facing the centering mechanism 120. A flared opening 132 is provided on the outer side of the steel pipe interface 130 for guidance, ensuring that the center of the steel pipe 1 coincides with the center of the push rod. The sealing ring 129 is an inflatable sealing ring, with an air nozzle 131. Compressed air is introduced through the air nozzle 131 to expand the sealing ring 129, thereby achieving a seal on the outer diameter of the steel pipe 1. The sealing ring 129 is fixed between the push rod interface 128 and the steel pipe interface 130. Furthermore, the sealing joint 116 can be replaced according to the inner and outer diameters of the steel pipe 1 to accommodate different steel pipes 1.

[0031] The plug 106 is lifted and mounted on the lifting seat 110 via the plug lifting mechanism 105, and the plug 106 is located between the sealing joint 116 and the push rod mechanism 117.

[0032] The oil scraper feeding system 102 is used to supply oil scraper plugs 119 made of rubber. The oil scraper feeding system 102 is bolted to the transverse support 107 and is connected to the feeder block 106. The oil scraper feeding system 102 includes a feeder 118, a slide rail 114, and a vibrator 115. The feeder 118 is a push-plate feeder. The inlet section of the slide rail 114 is connected to the outlet of the feeder 118, and the outlet section of the slide rail 114 is connected to the lifting support 110 and connected to the feeder block 106. A vibrator 115 is installed at the bottom of the outlet section of the slide rail 114. During continuous feeding, the vibration of the vibrator 115 can be controlled to prevent the oil scraper plugs 119 from accumulating. A buffer plate 121 is provided in the slide rail 114 to prevent the oil scraper plugs 119 from flying out of the slide rail 114 due to excessive speed.

[0033] The working method of this utility model is as follows:

[0034] (1) The steel pipe 1 to be plugged is fixed manually;

[0035] (2) The transverse moving mechanism 104 drives the transverse moving seat 107 to move horizontally on the base 103 toward the steel pipe 1, while the lifting moving mechanism 113 drives the lifting seat 110 to move up and down on the transverse moving seat 107, so that the pipe head of the steel pipe 1 enters between a pair of centering blocks 112 of the centering mechanism 120.

[0036] (3) The centering blocks 112 move by the centering block moving mechanism 111 respectively to center the pipe head center of the steel pipe 1, so that the pipe head center of the steel pipe 1 is aligned with the center of the sealing joint 116.

[0037] (4) The transverse moving mechanism 104 continues to drive the transverse moving seat 107 to move, so that the pipe end of the steel pipe 1 is inserted into the steel pipe interface 130 and the sealing ring 129; compressed air is introduced through the air nozzle 131 to expand the sealing ring 129, thereby sealing the outer diameter of the steel pipe 1.

[0038] (5) The feeding machine 118 sends the oil scraper 119 to the feeding block 106 through the slide 114; the feeding block lifting mechanism 105 drives the feeding block 106 to rise, and the feeding block 106 lifts the oil scraper 119 to the feeding position after aligning with the center line of the feeding block.

[0039] (6) The push rod moving mechanism 124 drives the push rod mechanism base plate 125 to move forward horizontally on the lifting seat 110. The push rod mechanism base plate 125 drives the push rod 127 to move forward horizontally. The push rod 127 pushes the oil scraper plug 119 into the push rod interface 128, and then gradually pushes it into the steel pipe 1 until the sealing block 126 and the end face of the sealing joint 116 are in contact, thus achieving end face sealing.

[0040] (7) Compressed air enters the push rod 127 through the compressed air interface 122 and is then ejected through the push rod outlet 123. The oil scraper 119 inside the steel pipe 1 is ejected from the steel pipe 1 under the action of compressed air, thus realizing the plugging process.

[0041] (8) After the plugging is completed, each mechanism is reset and waits for the control system to execute the next plugging task.

[0042] Furthermore, it should be noted that the specific embodiments described in this specification may differ in the shape and name of their components. The above description is merely illustrative of the structure of this utility model. All equivalent or simple variations made based on the structure, features, and principles described in this utility model patent concept are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined in these claims, all of which should fall within the protection scope of this utility model.

Claims

1. A steel pipe plugging device, characterized in that: The system includes a plugging machine, a plug feeding system, a plugging mechanism base, a transverse shift seat, a transverse shift seat moving mechanism, a lifting seat, and a lifting seat moving mechanism. The transverse shift seat is mounted on the plugging mechanism base via the transverse shift seat moving mechanism. The lifting seat is mounted on the transverse shift seat via the lifting seat moving mechanism. The plugging machine includes a plug feeding block, a centering mechanism, a sealing joint, and a push rod mechanism. The centering mechanism is mounted on the lifting seat. The push rod mechanism is located behind the centering mechanism and includes a compressed air interface, a push rod moving mechanism, a push rod mechanism base plate, a sealing block, and a push rod. The push rod mechanism base plate is mounted on the lifting seat via the push rod moving mechanism. The push rod is fixedly mounted on the push rod mechanism base plate. The push rod is equipped with a sealing block, an air outlet, and a compressed air interface. The sealing joint is located on the lifting seat and between the centering mechanism and the push rod mechanism, and includes a push rod interface, a sealing ring, and a steel pipe interface. The push rod interface and the steel pipe interface are fixed, with the push rod interface facing the push rod mechanism and the steel pipe interface facing the centering mechanism; the sealing ring is set between the push rod interface and the steel pipe interface; the feed block is set on the lifting seat through the feed block lifting mechanism, and the feed block is located between the sealing joint and the push rod mechanism; the oil scraper feed system is connected to the feed block.

2. The steel pipe plugging device according to claim 1, characterized in that: The lifting seat moving mechanism includes a drive motor and a screw jack. The drive motor and the screw jack are mounted on the transverse seat. The drive motor is connected to the screw jack, and the screw jack is connected to the lifting seat.

3. The steel pipe plugging device according to claim 1, characterized in that: The centering mechanism includes a centering block moving mechanism and a centering block; the centering block is moved and mounted on the lifting seat, and there is a pair of centering blocks, which are arranged vertically opposite each other. Each of the pair of centering blocks is equipped with a separate centering block moving mechanism, and the centering block moving mechanism is connected to the centering block.

4. The steel pipe plugging device according to claim 1, characterized in that: The oil scraper feeding system is fixedly installed on the transverse seat. The oil scraper feeding system includes a feeder and a slide. The inlet section of the slide is connected to the outlet of the feeder, and the outlet section of the slide is connected to the lifting seat and connected to the feeder block.

5. The steel pipe plugging device according to claim 1, characterized in that: The push rod has a sealing block fixed in the middle, an air outlet on the front center and side, and a compressed air interface at the rear.

6. The steel pipe plugging device according to claim 1, characterized in that: The sealing ring is an inflatable sealing ring, and an air nozzle is provided on the sealing ring.

7. The steel pipe plugging device according to claim 4, characterized in that: A vibrator is installed at the bottom of the exit section of the slide.

8. The steel pipe plugging device according to claim 4, characterized in that: The slide is equipped with a buffer plate.

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