CN112756989B

CN112756989B - Method for enabling welding line of stainless steel multi-coil continuous operation grinding unit to pass through wiper

Info

Publication number: CN112756989B
Application number: CN202011621896.7A
Authority: CN
Inventors: 陈可
Original assignee: Zhangjiagang Pohang Stainless Steel Co Ltd
Current assignee: Zhangjiagang Pohang Stainless Steel Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-08-16
Anticipated expiration: 2040-12-31
Also published as: CN112756989A

Abstract

The invention discloses a method for enabling a welding seam of a stainless steel multi-coil continuous operation grinding unit to pass through a wiper, wherein the stainless steel multi-coil continuous operation grinding unit comprises an uncoiler, a welding machine, a grinding machine body, a wiper, a shearing machine and a coiling machine which are sequentially arranged along the advancing direction of a stainless steel strip; the wiper is automatically closed when the welding line of the front and the back stainless steel bands passes through the rear end of the wiper by a set distance Y; the front end is the end of the wiper close to the grinder body, and the rear end is the end of the wiper close to the shearing machine. The invention has the advantages of simple control flow and easy operation, and the welding line is automatically opened and closed when passing through the wiper, thereby avoiding the contact between the welding line and the wiper, ensuring the normal service life of the wiper and saving the cost of spare parts.

Description

Method for enabling welding line of stainless steel multi-coil continuous operation grinding unit to pass through wiper

Technical Field

The invention belongs to the technical field of strip steel grinding, and particularly relates to a method for enabling a welding line of a stainless steel multi-coil continuous operation grinding unit to pass through a wiper.

Background

In order to eliminate surface defects of stainless steel to obtain a high quality finished surface, or to obtain a stainless steel material of a certain surface quality, the surface of the stainless steel material is ground. The strip steel grinding is divided into intermediate grinding and finished product grinding. The intermediate grinding is carried out after annealing and acid washing of the raw material coil and before cold rolling of the product, and is generally called coarse grinding; the grinding of the finished product is carried out after the annealing of the cold rolled finished product, generally called fine grinding, and the surface of the strip steel after the fine grinding is the surface of the finished product. The grinding machine is a main device for finishing the grinding of the surface of the stainless steel, the grinding machine can perform multi-roll continuous operation and single-roll grinding, but when the single-roll grinding is performed, the head end and the tail end cannot be ground, otherwise, the yield is influenced. In the prior art, multi-coil continuous operation is mostly adopted, and a multi-coil continuous operation grinding unit comprises an uncoiler, a welding machine, a grinding machine body, a wiper, a shearing machine, a coiling machine and the like. The defect is that a plurality of sets of equipment related to the existing multi-roll continuous operation all have independent control systems, manual on-off control is needed on site according to production conditions, when the welding seams of front and back two rolls of stainless steel strips pass through the wiper during the multi-roll continuous operation, an operator is needed to observe the positions of the welding seams to manually open and close, improper operation can cause the welding seams to contact with the wiping skin of the wiper, so that the abrasion is aggravated, the replacement period of the wiping skin is shortened, and the production cost is increased.

Disclosure of Invention

1. Technical problem to be solved

The invention aims to provide a method for enabling a welding line of a stainless steel multi-roll continuous operation grinding unit to pass through a wiper, which is simple in control flow and easy to operate, automatically opens and closes the welding line when the welding line of front and back stainless steel rolls passes through the wiper, avoids the contact between the welding line and the wiper, ensures the normal service life of the wiper, and saves spare part cost.

2. Technical scheme

In order to achieve the purpose and achieve the technical effect, the invention adopts the following technical scheme:

a method for enabling a welding seam of a stainless steel multi-coil continuous operation grinding unit to pass through a wiper is characterized in that the method for enabling the welding seam to pass through the wiper comprises the steps that when the welding seam of front and back two coils of stainless steel strips reaches the front end of the wiper by a set distance X, the wiper is automatically opened; the wiper is automatically closed when the welding line of the front and the back stainless steel bands passes through the rear end of the wiper by a set distance Y; the front end is the end of the wiper close to the grinder body, and the rear end is the end of the wiper close to the shearing machine.

In a specific embodiment of the present invention, the set distance X is 0.6 m.

In a specific embodiment of the present invention, the set distance Y is 0.6 m.

In a specific embodiment of the invention, the step of automatically opening the wiper when the welding seam of the front and back coils of stainless steel strips reaches the set distance X from the front end of the wiper further comprises the steps of measuring the distance between the center position of the wiper and the welding seam forming position of the welding machine, and controlling the welding seam running speed and the position reaching the set distance X from the front end of the wiper.

In a specific embodiment of the invention, the welding seam of the welding machine of the front and the back stainless steel coils forms 0 m as a reference, and the set distance of the front end of the wiper is automatically opened by 0.6m through calculating the running distance of the strip steel.

In a specific embodiment of the invention, the step of automatically closing the wiper when the welding seam of the front and back coils of stainless steel strips passes through the rear end of the wiper by the set distance Y further comprises controlling the running speed and position of the welding seam passing through the rear end of the wiper by the set distance Y.

In a specific embodiment of the invention, the welding seam of the welding machine of the front and the back coils of stainless steel strips forms 0 m as a reference, and the rear end of the wiper is automatically closed by calculating the running distance of the strip steel until the set distance of 0.6 m.

3. Advantageous effects

Compared with the prior art, the invention has the beneficial effects that: the control flow is simple, the operation is easy, the welding line is automatically opened and closed when passing through the wiper, the contact between the welding line and the wiper is avoided, the normal service life of the wiper is ensured, and the cost of spare parts is saved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic structural diagram of the operation state of the multi-roll stainless steel continuous operation grinding unit of the present invention when a weld occurs between the front and rear rolls of stainless steel strip.

FIG. 2 is a schematic view showing the distance measurement between the center position of the wiper and the weld forming position of the welder according to the present invention.

In the figure: 1-uncoiler; 2-welding machine; 3-a grinder body; 4-a wiper; 5, shearing machine; 6-a coiling machine; 7-front end; 8-back end; 9-welding seam.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, not all embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the invention.

In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and fig. 2, a method for passing a welding seam of a stainless steel multi-coil continuous operation grinding unit through a wiper is characterized in that the method for passing the welding seam through the wiper comprises the steps that the wiper 4 is automatically opened when a welding seam 9 of front and back stainless steel coils reaches the front end 7 of the wiper 4 by a set distance X, wherein the uncoiler 1, the welding machine 2, the grinding machine body 3, the wiper 4, the shearing machine 5 and the coiling machine 6 are sequentially arranged along the advancing direction of a stainless steel strip; the wiper 4 is automatically closed when the welding seam 9 of the front and back coils of stainless steel belts is set to be a distance Y through the rear end 8 of the wiper 4; the front end 7 is the end of the wiper 4 near the mill body 3 and the rear end 8 is the end of the wiper 4 near the shear 5.

The distance X was set to 0.6 m.

The distance Y was set to 0.6 m.

The automatic opening step of the wiper 4 when the welding seam 9 of the front and the back coils of the stainless steel band reaches the front end 7 of the wiper 4 by the set distance X also comprises the distance measurement of the central position of the wiper 4 and the welding seam forming position of the welding machine 2, and the position control of the welding seam running speed and the set distance X when the welding seam reaches the front end 7 of the wiper 4.

The welding seam of the welding machine 2 of the front and the back coils of stainless steel belts forms 0 m as a reference, and the front end 7 of the wiper 4 is automatically opened by a set distance of 0.6m through the calculation of the running distance of the steel belts.

The step of automatically closing the wiper 4 when the distance Y is set through the rear end 8 of the wiper 4 for the welding seam of the front and rear coils of stainless steel belts further comprises the operation speed and position control of the welding seam through the rear end 8 of the wiper 4 by the set distance Y.

The welding seam of the welding machine 2 of the front and the back coils of stainless steel belts forms 0 m as a reference, and the rear end 8 of the wiper 4 is automatically closed by a set distance of 0.6m through the calculation of the running distance of the steel belts.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for enabling a welding line of a stainless steel multi-coil continuous operation grinding unit to pass through a wiper is characterized in that the stainless steel multi-coil continuous operation grinding unit comprises an uncoiler, a welding machine, a grinding machine body, the wiper, a shearing machine and a coiling machine which are sequentially arranged along the advancing direction of a stainless steel belt, and the method comprises the following steps: the method for enabling the welding line to pass through the wiper comprises the steps that when the welding line of front and back coils of stainless steel strips reaches the front end of the wiper by a set distance X, the wiper is automatically opened; the wiper is automatically closed when the welding line of the front and the back stainless steel bands passes through the rear end of the wiper by a set distance Y; the front end is one end of the wiper close to the grinder body, and the rear end is one end of the wiper close to the shearing machine; the set distance X is 0.6 m; the set distance Y is 0.6 m;

the step of automatically opening the wiper when the welding seam of the front and rear stainless steel coils reaches the set distance X at the front end of the wiper further comprises the steps of measuring the distance between the central position of the wiper and the welding seam forming position of a welding machine, and controlling the operation speed of the welding seam and the position of the set distance X at the front end of the wiper; the welding seam of the welding machine of the front and the rear stainless steel coils forms 0 m as a reference, and the front end of the wiper is automatically opened by 0.6m through calculating the running distance of the strip steel;

the step of automatically closing the wiper when the welding line of the front and the back coils of stainless steel strips is set to be a distance Y through the rear end of the wiper further comprises the operation speed and position control of the welding line to be set to be a distance Y through the rear end of the wiper; the welding seam of the welding machine of the front and the back stainless steel coils forms 0 m as a reference, and the rear end of the wiper is automatically closed by the set distance of 0.6m calculated by the running distance of the strip steel.