Online diameter measuring device for high-frequency longitudinal welded pipe

Abstract

The utility model discloses a high-frequency straight welded pipe on-line diameter measuring device which comprises a supporting frame and a plurality of steel pipe conveying rollers installed on the supporting frame, the steel pipe conveying rollers are driven by a driving assembly installed on one side of the supporting frame, and the outer side of the supporting frame is sleeved with a front measuring assembly and a rear measuring assembly. The measuring assembly comprises an annular fixing plate fixed to the supporting frame, a plurality of mounting holes are formed in the annular fixing plate, infrared sensors are mounted in the mounting holes, and the infrared sensors are electrically connected with a controller arranged on one side of the supporting frame. According to the utility model, the diameter of the steel pipe can be directly measured on the production line of the high-frequency welded pipe through the two groups of infrared sensors, the device is efficient and rapid, the device can warn workers that unqualified pipes exist through the alarm, the device can also be suitable for pipes of various models, and the applicability is expanded.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing equipment technology, and in particular to an online diameter measuring device for high-frequency straight seam welded pipes. Background Technology

[0002] After high-frequency welded pipes are bent from metal plates into tubular shapes and welded, it is necessary to measure the outer diameter of the pipe. In existing technologies, sampling inspection is mostly carried out using vernier calipers or tape measures. This method cannot measure the outer diameter of the entire pipe, which may lead to inconsistencies between the diameters at both ends and the diameter at the middle, affecting later use and making it impractical. Utility Model Content

[0003] The purpose of this invention is to provide an online diameter measuring device for high-frequency straight seam welded pipes, thereby solving the aforementioned problems.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] This utility model discloses an online diameter measuring device for high-frequency straight seam welded pipes, comprising a support frame and a plurality of steel pipe conveying rollers mounted on the support frame. The steel pipe conveying rollers are driven by a drive assembly mounted on one side of the support frame. Two sets of measuring assemblies are sleeved on the outer side of the support frame. Each measuring assembly includes an annular fixing plate fixed on the support frame. The annular fixing plate has a plurality of mounting holes, in which infrared sensors are installed. The infrared sensors are electrically connected to a controller located on one side of the support frame.

[0006] Furthermore, the drive assembly includes a drive motor and a rotating shaft connected to the steel pipe conveying roller. The output end of the drive motor is connected to one of the rotating shafts. Two sprockets are fixedly connected to the rotating shaft, and the sprockets on the same side of two adjacent rotating shafts are connected by a chain.

[0007] Furthermore, the drive motor is connected to the support frame via a mounting plate.

[0008] Furthermore, eight mounting holes are provided, with an included angle of 45° between two adjacent mounting holes. A through hole is provided at the position where the support frame is surrounded by the annular fixing plate, and the infrared sensor placed outside the through hole senses the steel pipe through the through hole.

[0009] Furthermore, the outer wall of the steel pipe conveyor roller is wrapped with a protective rubber sleeve.

[0010] Furthermore, an alarm is installed on the support frame, and the alarm is connected to the controller.

[0011] Compared with the prior art, the beneficial technical effects of the present invention are:

[0012] This invention enables the direct measurement of steel pipe diameter on the high-frequency welded pipe production line using two sets of infrared sensors. It is efficient and fast, and can alert workers to defective pipes via an alarm. It is also applicable to various types of pipes, thus expanding its applicability. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings.

[0014] Figure 1 This is a top view of the online diameter measuring device for high-frequency straight seam welded pipes according to this utility model;

[0015] Figure 2 This is a side view of the online diameter measuring device for high-frequency straight seam welded pipes according to this utility model;

[0016] Explanation of reference numerals in the attached drawings: 1. Support frame; 2. Steel pipe conveyor roller; 3. Annular fixing plate; 4. Infrared sensor; 5. Drive motor; 6. Rotating shaft; 7. Sprocket; 8. Chain; 9. Mounting plate; 10. Alarm. Detailed Implementation

[0017] like Figure 1-2 As shown, a high-frequency straight seam welded pipe online diameter measuring device includes a support frame 1 and a plurality of steel pipe conveying rollers 2 installed on the support frame 1, wherein the outer wall of the steel pipe conveying rollers 2 is wrapped with a protective rubber sleeve.

[0018] The steel pipe conveying roller 2 is driven by a drive assembly installed on one side of the support frame 1. The drive assembly includes a drive motor 5 connected to the support frame 1 via a mounting plate 9 and a rotating shaft 6 connected to the steel pipe conveying roller 2. The output end of the drive motor 5 is connected to one of the rotating shafts 6. Two sprockets 7 are fixedly connected to the rotating shaft 6. The sprockets 7 on the same side of two adjacent rotating shafts 6 are connected by a chain 8.

[0019] The support frame 1 is fitted with two sets of measuring components, one front and one rear. Each measuring component includes an annular fixing plate 3 fixed on the support frame 1. The annular fixing plate 3 has eight mounting holes, and the included angle between two adjacent mounting holes is 45°. An infrared sensor 4 is installed in each mounting hole. The infrared sensor 4 is electrically connected to a controller located on one side of the support frame 1. The controller is existing technology, and its specific structure will not be described in detail here. When the high-frequency welded pipe passes between the infrared sensors 4, the distance between the infrared sensor 4 and the outer wall of the pipe can be directly determined by the infrared sensor 4, thereby determining whether the diameter of the pipe end and the diameter of the middle pipe are consistent.

[0020] The support frame 1 has a through hole at the position where it is surrounded by the annular fixing plate 3, and the infrared sensor 4, which is placed outside the through hole, senses the steel pipe through the through hole.

[0021] An alarm 10 is installed on the support frame 1, and the alarm 10 is connected to the controller.

[0022] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A high-frequency straight seam welded pipe online diameter measuring device, characterized in that: The device includes a support frame (1) and several steel pipe conveying rollers (2) mounted on the support frame (1). The steel pipe conveying rollers (2) are driven by a drive assembly mounted on one side of the support frame (1). Two sets of measuring assemblies are sleeved on the outer side of the support frame (1). The measuring assemblies include an annular fixing plate (3) fixed on the support frame (1). Several mounting holes are provided on the annular fixing plate (3). Infrared sensors (4) are installed in the mounting holes. The infrared sensors (4) are electrically connected to a controller located on one side of the support frame (1).

2. The online diameter measuring device for high-frequency straight seam welded pipes according to claim 1, characterized in that: The drive assembly includes a drive motor (5) and a rotating shaft (6) connected to the steel pipe conveying roller (2). The output end of the drive motor (5) is connected to one of the rotating shafts (6). Two sprockets (7) are fixedly connected to the rotating shaft (6). The sprockets (7) on the same side of two adjacent rotating shafts (6) are connected by a chain (8).

3. The online diameter measuring device for high-frequency straight seam welded pipes according to claim 2, characterized in that: The drive motor (5) is connected to the support frame (1) via a mounting plate (9).

4. The online diameter measuring device for high-frequency straight seam welded pipes according to claim 1, characterized in that: The mounting holes are provided in eight places, and the included angle between two adjacent mounting holes is 45°. The support frame (1) is provided with a through hole at the position surrounded by the annular fixing plate (3). The infrared sensor (4) placed outside the through hole senses the steel pipe through the through hole.

5. The online diameter measuring device for high-frequency straight seam welded pipes according to claim 1, characterized in that: The outer wall of the steel pipe conveyor roller (2) is covered with a protective rubber sleeve.

6. The online diameter measuring device for high-frequency straight seam welded pipes according to claim 1, characterized in that: An alarm (10) is installed on the support frame (1), and the alarm (10) is connected to the controller.

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