A precision steel pipe demagnetization device

Abstract

The utility model discloses a kind of precise steel pipe demagnetization devices, specifically related to steel pipe processing technical field, including the hollow structure setting degaussing box, one through hole is respectively provided in the two sides of degaussing box, degaussing box inside is provided with degaussing coil, transmission unit is horizontally provided on degaussing box, transmission unit includes bottom plate, the side of bottom plate top is rotatably connected with multiple transmission roller one, the other side of bottom plate top is rotatably connected with multiple transmission roller two, multiple transmission roller one and multiple transmission roller two are all provided with a top plate;Transmission unit is used for linear transmission steel pipe;Lifting assembly is provided on transmission unit, lifting assembly is provided with elastic connecting assembly, magnetic intensity detection probe is provided on elastic connecting assembly, magnetic intensity detection probe is used for active contact transmission steel pipe on transmission unit.The utility model solves the technical problem that the function of demagnetization device is deficient due to the cumbersome steel pipe demagnetization inspection procedure.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe processing technology, and more specifically, to a precision steel pipe demagnetizing device. Background Technology

[0002] Currently, during the manufacturing process of steel pipes, the finishing process can impart a slight magnetic field. If this field is not demagnetized, the magnetic field can cause the welding arc to deflect, resulting in magnetic blow and affecting the welding quality. Therefore, steel pipes must undergo demagnetization treatment using a demagnetizing device before leaving the factory.

[0003] For example, utility model patent publication number CN216014981U discloses a demagnetizing device for steel pipe production, including a support frame. A demagnetizing box is set in the middle of the top of the support frame, and a demagnetizing coil is set in the demagnetizing box. A feeding rack is set at the feeding end of the support frame, and a material transport cart, a material unloading plate, a material unloading rod, and an electric push rod are set at the unloading end. The feeding rack is equipped with two partition plates and a driving assembly. The material unloading plate is inclined. The material transport cart is equipped with two baffles. Through the two partition plates on the feeding rack, the steel pipes on the feeding rack can roll one by one onto the support frame and be transported away for demagnetization, eliminating the need for frequent handling and making it more convenient. Through the material unloading rod and the electric push rod, the steel pipes can be easily pushed directly onto the material unloading plate and rolled into the material transport cart, making unloading more convenient.

[0004] In the aforementioned patent, although the steel pipe achieves mobile (i.e., transmission state) demagnetization processing during demagnetization, the demagnetization effect of the steel pipe needs to be manually tested using professional magnetic strength testing instruments after demagnetization. The demagnetization inspection steps are cumbersome, and the demagnetization device has functional deficiencies.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that addresses the problem of cumbersome demagnetization inspection procedures for steel pipes, which leads to functional deficiencies in the demagnetization device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision steel pipe demagnetizing device, comprising a demagnetizing box with a hollow structure, an opening on each side of the demagnetizing box, a demagnetizing coil inside the demagnetizing box, and a transmission unit transversely arranged on the demagnetizing box, the transmission unit being used for linearly transmitting the steel pipe;

[0008] The transmission unit is equipped with a lifting assembly, the lifting assembly is equipped with an elastic connecting assembly, and the elastic connecting assembly is equipped with a magnetic intensity detection probe, which is used to make movable contact with the steel pipe being transmitted on the transmission unit.

[0009] In a preferred embodiment, the transmission unit includes a base plate, with a plurality of transmission rollers rotatably connected to one side of the top of the base plate and a plurality of transmission rollers rotatably connected to the other side of the top of the base plate. Each of the transmission rollers rotatably and the plurality of transmission rollers rotatably is provided with a top plate. The transmission rollers rotatably and the plurality of transmission rollers rotatably are arranged diagonally. The transmission rollers rotatably and the transmission rollers rotatably are used to support the transmission steel pipe. The base plate and the top plate are both fixedly mounted on the demagnetizing box, and the base plate and the top plate pass through the through hole and the demagnetizing coil in sequence.

[0010] In a preferred embodiment, multiple transmission rollers are sequentially connected by a belt drive mechanism, one end of which is driven by a motor. Multiple transmission rollers are sequentially connected by a belt drive mechanism, one end of which is driven by a motor.

[0011] In a preferred embodiment, the lifting assembly includes a bracket fixedly connected to a pair of top plates. A precision lead screw is threaded onto the bracket, and a fixing block is rotatably connected to one end of the precision lead screw. A light rod is fixedly connected to the fixing block, and the light rod is slidably connected to the bracket.

[0012] In a preferred embodiment, the elastic connection assembly includes a support plate fixedly connected to the fixing block. The support plate has a rotating groove, in which a torsion spring shaft is disposed. A connecting plate is disposed on the torsion spring shaft, and the connecting plate is rotatably connected to the support plate through the torsion spring shaft. The magnetic intensity detection probe is fixedly connected to the connecting plate.

[0013] In a preferred embodiment, a groove is provided on one side of the support plate, and one end of the connecting plate abuts in the groove.

[0014] In a preferred embodiment, the demagnetizing box is equipped with a magnetic strength tester electrically connected to the magnetic strength detection probe, and the magnetic strength tester is equipped with an audible and visual alarm.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] 1. The precision steel pipe demagnetizing device, by setting up a transmission unit, in which transmission roller 1 and transmission roller 2 are arranged obliquely and crosswise, allows the steel pipe to pass through the demagnetizing box in a straight direction for demagnetization treatment, and meets the requirements of demagnetizing steel pipes of various diameter specifications.

[0017] 2. This precision steel pipe demagnetizing device allows the transmission unit to make the axes of steel pipes of different specifications on the same longitudinal plane. The magnetic intensity detection probe, which is inclined and elastically connected, can move and contact the surface of the steel pipe in a moving state, thus facilitating and quickly testing the demagnetizing effect of the steel pipe.

[0018] 3. This precision steel pipe demagnetizing device, by setting up a lifting component, can be used to adjust the detection height of the magnetic intensity detection probe, thus adapting to the demagnetizing detection needs of steel pipes of different specifications. Attached Figure Description

[0019] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0020] Figure 1 This is a first-view structural schematic diagram of a precision steel pipe demagnetizing device according to the present invention;

[0021] Figure 2 This is a second-view structural schematic diagram of a precision steel pipe demagnetizing device according to the present invention;

[0022] Figure 3 This is a cross-sectional view of the demagnetizing box of this utility model;

[0023] Figure 4 This is a schematic diagram of the lifting assembly, elastic connection assembly, and magnetic intensity detection probe of this utility model;

[0024] Figure 5 This is a structural schematic diagram of the support plate and connecting plate of this utility model.

[0025] The attached diagram is labeled as follows: 1. Demagnetizing box; 2. Through-hole; 21. Demagnetizing coil; 3. Transmission unit; 31. Base plate; 32. Transmission roller one; 33. Transmission roller two; 34. Top plate; 4. Lifting assembly; 41. Bracket; 42. Precision lead screw; 43. Fixing block; 44. Smooth rod; 5. Elastic connection assembly; 51. Support plate; 52. Rotary groove; 53. Torsion spring shaft; 54. Connecting plate; 6. Magnetic strength detection probe; 7. Inclined groove; 8. Magnetic strength tester; 9. Audible and visual alarm. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] See also Figures 1-5 This utility model provides a precision steel pipe demagnetizing device, including a demagnetizing box 1 with a hollow structure, a through opening 2 on each side of the demagnetizing box 1, and a demagnetizing coil 21 inside the demagnetizing box 1.

[0028] The through-hole 2 provides a channel for demagnetizing the steel pipe. By passing alternating current through the demagnetizing coil 21, the magnetic field generated by the alternating current can eliminate the magnetic field on the steel pipe, thus making the steel pipe non-magnetic.

[0029] In this embodiment: A transmission unit 3 is horizontally arranged on the demagnetizing box 1. The transmission unit 3 is used for linear transmission of steel pipe. The transmission unit 3 includes a base plate 31. Multiple transmission rollers 32 are rotatably connected to one side of the top of the base plate 31, and multiple transmission rollers 33 are rotatably connected to the other side of the top of the base plate 31. A top plate 34 is provided on each of the multiple transmission rollers 32 and multiple transmission rollers 33. The multiple transmission rollers 32 and multiple transmission rollers 33 are arranged diagonally. The transmission rollers 32 and transmission rollers 33 are used to support the transmission of steel pipe. The base plate 31 and the top plate 34 are fixedly mounted on the demagnetizing box 1, and the base plate 31 and the top plate 34 pass through the through hole 2 and the demagnetizing coil 21 in sequence.

[0030] Both the first transfer roller 32 and the second transfer roller 33 can be rubber rollers to prevent damage to the steel pipe during transmission. The shaft end of the first transfer roller 32 is rotatably connected to the top plate 34. The bottom plate 31 and the top plate 34 can be connected to the demagnetizing box 1 by means of fasteners. By using the first transfer roller 32 and the second transfer roller 33 arranged obliquely in the transmission unit 3, the steel pipe can pass through the demagnetizing box 1 in a straight line for demagnetization treatment. At the same time, it can meet the demagnetization movement of steel pipes of various diameters and make the axes of steel pipes of various diameters all lie on the same longitudinal plane, which facilitates the subsequent demagnetization inspection of the steel pipe.

[0031] In this embodiment: multiple transmission rollers 32 are sequentially connected by a belt drive mechanism 1, and one end of the belt drive mechanism 1 is driven by a motor 1; multiple transmission rollers 33 are sequentially connected by a belt drive mechanism 2, and one end of the belt drive mechanism 2 is driven by a motor 2.

[0032] The motor, in conjunction with the belt drive mechanism, can drive the corresponding transmission roller 32 or transmission roller 33 to rotate, so that the steel pipe placed on the transmission roller 32 and transmission roller 33 can enter the demagnetizing box 1 in a straight line for demagnetization.

[0033] In this embodiment: The transmission unit 3 is provided with a lifting component 4, which includes a bracket 41. The bracket 41 is fixedly connected to a pair of top plates 34. A precision lead screw 42 is threadedly connected to the bracket 41. One end of the precision lead screw 42 is rotatably connected to a fixing block 43. A light rod 44 is fixedly connected to the fixing block 43. The light rod 44 is slidably connected to the bracket 41.

[0034] A handheld device can be provided at the end of the precision lead screw 43 facing away from the fixed block 43, so that the user can hold the handheld device to rotate the precision lead screw 42. By rotating the precision lead screw 43, the guide rod 44 slides on the bracket 41, which allows the fixed block 43 to move up and down inside the bracket 41.

[0035] In this embodiment: the lifting assembly 4 is provided with an elastic connecting assembly 5, the elastic connecting assembly 5 includes a support plate 51, the support plate 51 is fixedly connected to the fixing block 43, the support plate 51 is provided with a rotating groove 52, the rotating groove 52 is provided with a torsion spring shaft 53, the torsion spring shaft 53 is provided with a connecting plate 54, and the connecting plate 54 is rotatably connected to the support plate 51 through the torsion spring shaft 53.

[0036] The torsion spring shaft 53 consists of a shaft rotatably connected in the rotating groove 52 and a torsion spring sleeved on the shaft. The two ends of the torsion spring can be fixed to the shaft and the support plate 51 respectively, so that the connecting plate 54 can be reset when it rotates under the action of external force.

[0037] In this embodiment, a groove 7 is provided on one side of the support plate 51, and one end of the connecting plate 54 abuts in the groove 7.

[0038] The inclined groove 7 allows the connecting plate 54 to be set at an angle in the initial state.

[0039] In this embodiment: a magnetic intensity detection probe 6 is provided on the elastic connection component 5. The magnetic intensity detection probe 6 is fixedly connected to the connection plate 54. The magnetic intensity detection probe 6 is used to make movable contact with the steel pipe being transmitted on the transmission unit 3.

[0040] The magnetic intensity detection probe 6 is used to detect the magnetic intensity on the steel pipe after demagnetization. The aforementioned lifting assembly 4 can be used to adjust the lifting height of the magnetic intensity detection probe 6. When the steel pipe of other sizes is replaced on the transmission unit 3, the height of the magnetic intensity detection probe 6 can be adjusted by the lifting assembly 4 to ensure that the magnetic intensity detection probe 6 effectively contacts and cooperates with the steel pipe. When the elastic connecting assembly 5 acts on the magnetic intensity detection probe 6, since the magnetic intensity detection probe 6 first contacts one end of the steel pipe, the pushing force of the moving steel pipe can push the magnetic intensity detection probe 6. Then the connecting plate 54 can rotate outward through the torsion spring shaft 53 to achieve the effect of buffering the magnetic intensity detection probe 6. Moreover, since the magnetic intensity detection probe 6 is set at an angle, the magnetic intensity detection probe 6 can be rotated more easily, ensuring that the end of the magnetic intensity detection probe 6 makes surface contact along the length direction of the steel pipe.

[0041] In this embodiment: a magnetic strength tester 8 electrically connected to the magnetic strength detection probe 6 is installed on the demagnetizing box 1, and an audible and visual alarm 9 is installed on the magnetic strength tester 8.

[0042] The magnetic strength detection probe 6 can be electrically connected to the magnetic strength tester 8 via a signal line. The combination of the magnetic strength tester 8 and the magnetic strength detection probe 6 constitutes the existing technology model STY23-GM-2A gaussmeter. In this way, the magnetic strength detection probe 6 automatically contacts the demagnetized steel pipe, allowing the magnetic strength tester 8 to quickly verify the demagnetization effect of the steel pipe. The audible and visual alarm 9 can be electrically connected to the magnetic strength tester 8 via a controller. The audible and visual alarm 9 can provide audible and visual reminders based on the data processed by the magnetic strength tester 8. That is, if the steel pipe is demagnetized successfully, a qualified reminder will be given, such as displaying a green light; if the steel pipe is demagnetized unsuccessfully, a unqualified reminder will be given, such as displaying a red light and providing an audible reminder.

Claims

1. A precision steel pipe demagnetizing device, characterized in that: The system includes a hollow demagnetizing box (1), with a through-hole (2) on each side of the demagnetizing box (1), a demagnetizing coil (21) inside the demagnetizing box (1), and a transmission unit (3) running horizontally across the demagnetizing box (1), which is used for linear transmission of steel pipes. The transmission unit (3) is provided with a lifting assembly (4), the lifting assembly (4) is provided with an elastic connection assembly (5), the elastic connection assembly (5) is provided with a magnetic intensity detection probe (6), and the magnetic intensity detection probe (6) is used to make active contact with the steel pipe transmitted on the transmission unit (3).

2. The precision steel pipe demagnetizing device according to claim 1, characterized in that: The transmission unit (3) includes a base plate (31). Multiple transmission rollers (32) are rotatably connected to one side of the top of the base plate (31), and multiple transmission rollers (33) are rotatably connected to the other side of the top of the base plate (31). Each of the multiple transmission rollers (32) and multiple transmission rollers (33) is provided with a top plate (34). The multiple transmission rollers (32) and multiple transmission rollers (33) are arranged diagonally. The transmission rollers (32) and transmission rollers (33) are used to support the transmission steel pipe. The base plate (31) and the top plate (34) are both fixedly mounted on the demagnetizing box (1), and the base plate (31) and the top plate (34) pass through the opening (2) and the demagnetizing coil (21) in sequence.

3. The precision steel pipe demagnetizing device according to claim 2, characterized in that: Multiple transmission rollers (32) are connected in sequence through a belt drive mechanism, and one end of the belt drive mechanism is driven by a motor. Multiple transmission rollers (33) are connected in sequence through a belt drive mechanism, and one end of the belt drive mechanism is driven by a motor.

4. The precision steel pipe demagnetizing device according to claim 1, characterized in that: The lifting assembly (4) includes a bracket (41) which is fixedly connected to a pair of top plates (34). A precision lead screw (42) is threaded onto the bracket (41). A fixing block (43) is rotatably connected to one end of the precision lead screw (42). A light rod (44) is fixedly connected to the fixing block (43). The light rod (44) is slidably connected to the bracket (41).

5. The precision steel pipe demagnetizing device according to claim 4, characterized in that: The elastic connection assembly (5) includes a support plate (51), which is fixedly connected to the fixing block (43). A rotating groove (52) is provided on the support plate (51), and a torsion spring shaft (53) is provided in the rotating groove (52). A connecting plate (54) is provided on the torsion spring shaft (53). The connecting plate (54) is rotatably connected to the support plate (51) through the torsion spring shaft (53). The magnetic intensity detection probe (6) is fixedly connected to the connecting plate (54).

6. The precision steel pipe demagnetizing device according to claim 5, characterized in that: A groove (7) is provided on one side of the support plate (51), and one end of the connecting plate (54) abuts in the groove (7).

7. The precision steel pipe demagnetizing device according to claim 1, characterized in that: The demagnetizing box (1) is equipped with a magnetic strength tester (8) electrically connected to the magnetic strength detection probe (6), and the magnetic strength tester (8) is equipped with an audible and visual alarm (9).

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