CN108906894B - Hourglass pipe rolling control system - Google Patents

Hourglass pipe rolling control system Download PDF

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Publication number
CN108906894B
CN108906894B CN201810701456.9A CN201810701456A CN108906894B CN 108906894 B CN108906894 B CN 108906894B CN 201810701456 A CN201810701456 A CN 201810701456A CN 108906894 B CN108906894 B CN 108906894B
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CN
China
Prior art keywords
roller
screw rod
rolling
rolling wheel
seat
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Active
Application number
CN201810701456.9A
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Chinese (zh)
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CN108906894A (en
Inventor
李显军
秦兴超
姜业平
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Guangzhou Dragon Pipe Technology Co Ltd
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Guangzhou Dragon Pipe Technology Co Ltd
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Priority to CN201810701456.9A priority Critical patent/CN108906894B/en
Publication of CN108906894A publication Critical patent/CN108906894A/en
Application granted granted Critical
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B37/00Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/78Control of tube rolling
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B19/00Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/12Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B27/00Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
    • B21B27/02Shape or construction of rolls
    • B21B27/021Rolls for sheets or strips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B28/00Maintaining rolls or rolling equipment in effective condition
    • B21B28/02Maintaining rolls in effective condition, e.g. reconditioning
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/02Rolling stand frames or housings; Roll mountings ; Roll chocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B31/00Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16Adjusting or positioning rolls
    • B21B31/20Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/28Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by toggle-lever mechanisms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B35/00Drives for metal-rolling mills, e.g. hydraulic drives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B13/00Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/021Twin mills

Abstract

A sandglass tube rolling control system comprises a rolling device mounting seat, wherein the rolling device mounting seat is provided with an upper roller independent driving mechanism, a lower roller independent driving mechanism and a sandglass tube pre-forming rolling wheel set; the sand leakage pipe pre-forming rolling wheel group comprises an upper rolling wheel and a lower rolling wheel, the upper rolling wheel is arranged in the middle of the upper roller, and the lower rolling wheel is arranged in the middle of the lower roller; the outer circumferential surface of the upper rolling wheel is a convex cambered surface, and the outer circumferential surface of the lower rolling wheel is a concave cambered surface; the convex cambered surface is provided with two concave ring grooves, and the concave cambered surface is provided with two convex ring surfaces matched with the concave ring grooves; the convex cambered surface is provided with a plurality of convex annular edges, and the concave cambered surface is provided with a plurality of concave annular edges matched with the convex annular edges. The invention realizes the independent driving of the upper and lower rollers, and the upper and lower rollers can independently regulate the speed; the single-group rolling wheel set can perform preforming and rib pressing on the aluminum strip synchronously, and the rolling wheel set is in point contact with the aluminum strip, so that the abrasion problem and the position deviation problem of the aluminum strip are greatly improved.

Description

Hourglass pipe rolling control system
Technical Field
The invention relates to the field of hourglass pipe equipment, in particular to a hourglass pipe rolling control system.
Background
The sand leakage pipe is a cooling pipe which is gradually popularized and used in recent years and is widely applied to radiators. The sand leakage pipe is famous because the cross section shape is similar to an hourglass timer, has the characteristics of low cost and high reliability, and can improve the service life of the water tank assembly by more than one time. The sand leakage pipe machine set adopts an aluminum strip as a raw material. The aluminum strip is deformed into an open circular tube with a convex rib in the middle through a series of longitudinal deformation processes, and the sand drain tube is produced after welding by a high-frequency welding device.
However, in the existing sand-drop tube rolling control system, two mutually matched rolling wheels arranged in an upper roller and a lower roller of the existing sand-drop tube rolling control system are in line contact with an aluminum strip in the process of performing pre-rolling on the aluminum strip, and the contact mode is easy to cause the phenomena of aluminum strip deviation and excessive abrasion, so that the welding of the sand-drop tube is unstable; on the other hand, the single-group rolling wheel in the existing hourglass pipe rolling device cannot perform pre-forming and rib pressing on the aluminum strip synchronously, but is completed by two processes independently, so that the cost of equipment is increased.
On the other hand, the upper roller and the lower roller in the existing sand leaking pipe rolling control system are synchronously controlled by the same motor, so that the speed of the upper roller and the lower roller during working cannot be independently controlled, and when sand leaking pipes of various specifications are rolled, the phenomenon that the abrasion loss is large on one side of a high-frequency welded pipe is caused due to the slight difference of the synchronous operation speed of the upper roller and the lower roller.
Disclosure of Invention
In view of the above-mentioned shortcomings of the prior art, the present invention is directed to an hourglass pipe rolling control system, which is used to solve the problems that the upper and lower rollers in the existing hourglass pipe rolling control system cannot independently adjust the rotation speed, the aluminum strip is prone to shift, and the single set of rolling wheels cannot perform pre-forming and rib-pressing synchronously on the aluminum strip.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a sandglass tube rolling control system comprises a rolling device mounting seat, wherein the rolling device mounting seat is provided with an upper roller independent driving mechanism, a lower roller independent driving mechanism and a sandglass tube pre-forming rolling wheel set;
the lower roller independent driving mechanism is arranged at the lower part of the rolling device mounting seat and comprises a lower roller and a servo motor A, and the lower roller is connected with the servo motor A; the upper roller independent driving mechanism is arranged in the middle of the rolling device mounting seat and comprises an upper roller and a servo motor B, and the upper roller is connected with the servo motor B; the upper roller and the lower roller are arranged in parallel; the sand leakage pipe pre-forming rolling wheel set comprises an upper rolling wheel and a lower rolling wheel, the upper rolling wheel is arranged in the middle of the upper roller, the lower rolling wheel is arranged in the middle of the lower roller, and the upper rolling wheel and the lower rolling wheel are cylindrical metal bodies; the outer circumferential surface of the upper rolling wheel is a convex cambered surface, and the outer circumferential surface of the lower rolling wheel is a concave cambered surface; the convex arc surface is provided with two concave ring grooves, and the concave arc surface is provided with two convex ring surfaces matched with the concave ring grooves; the convex arc surface is provided with a plurality of convex annular edges, and the concave arc surface is provided with a plurality of concave annular edges matched with the convex annular edges.
When the rolling mill works, the driving motor A drives the upper roller to rotate clockwise, and the upper roller rotates clockwise to drive the upper rolling wheel to rotate clockwise; the driving motor B drives the lower roller to rotate anticlockwise, and the lower roller rotates anticlockwise to drive the lower rolling wheel to rotate clockwise; the aluminum strip is rolled and deformed between the upper rolling wheel and the lower rolling wheel, in the debugging process, a worker can observe and judge the abrasion loss of the front surface and the back surface of the aluminum strip in the aluminum strip rolling process, if the abrasion loss of the front surface of the aluminum strip is large, the output rotating speed of the driving motor A can be correspondingly adjusted to be small or the output rotating speed of the driving motor B can be correspondingly adjusted to be large, and if the abrasion loss of the back surface of the aluminum strip is large, the output rotating speed of the driving motor A can be correspondingly adjusted to be large or the output rotating speed of the driving motor B can be correspondingly adjusted to be small; through the adjusting mode, the problem that the abrasion loss of one surface of the aluminum strip is larger due to unreasonable output rotating speed matching of the driving motor A and the driving motor B can be solved.
When the aluminum strip is rolled and preformed between the upper rolling wheel and the lower rolling wheel, the part of the aluminum strip rolled by the convex ring surface is sunk into the concave ring groove to form two convex ribs; the arrangement of the convex annular edge realizes that the contact state of the upper rolling wheel to the aluminum strip is point contact, plays a certain limiting role in the aluminum strip and solves the problem that the aluminum strip is easy to deviate. On the other hand, because the two sides of the aluminum strip are not contacted with the rolling wheel, the two sides of the aluminum strip are not abraded, and the stability of welding the two sides of the aluminum strip is enhanced.
In the invention, furthermore, an angle between two surfaces forming the convex ring edge is 160-170 degrees, an angle between two surfaces forming the concave ring edge is 160-170 degrees, the convex ring edge is a convex edge with small convex degree, and the concave ring edge is a concave edge with small concave degree, so that the convex edge and the concave edge can still play a certain limiting role under the condition that the aluminum strip is not obviously bent.
In the invention, preferably, the cleaning device also comprises a waste chip cleaning assembly, wherein the waste chip cleaning assembly comprises a waste chip cleaning assembly A and a waste chip cleaning assembly B; the scrap cleaning component A is arranged above the upper rolling wheel and comprises a right-angle mounting plate A, an air cylinder A, a soft cotton mounting block A and soft cotton A, the right-angle mounting plate A is fixedly mounted in the middle of one side of the mounting seat of the rolling device, the air cylinder A is mounted on the right-angle mounting plate A, a telescopic rod of the air cylinder A is connected with the top of the soft cotton mounting block A, and the soft cotton A is mounted at the bottom of the soft cotton mounting block A; the scrap cleaning component B is arranged below the lower rolling wheel and comprises a right-angle mounting plate B, an air cylinder B, a soft cotton mounting block B and a soft cotton B, the right-angle mounting plate B is fixedly mounted on the lower portion of one side of the mounting seat of the rolling device, the air cylinder B is mounted on the right-angle mounting plate B, a telescopic rod of the air cylinder B is connected with the top of the soft cotton mounting block B, and the soft cotton B is mounted at the bottom of the soft cotton mounting block B. In the invention, preferably, the upper roller independent driving mechanism further comprises a lifting bearing seat A and a lifting bearing seat B, and the left part and the right part of the upper roller are respectively connected with the lifting bearing seat A and the lifting bearing seat B.
In the invention, the automatic feeding device is preferred to further comprise an upper roller lifting assembly, wherein the upper roller lifting assembly comprises a servo motor C, a screw rod A, a screw rod B, a screw rod connecting seat A, a screw rod connecting seat B and a screw rod linkage shaft;
the screw rod connecting seat A is arranged on the left side of the top of the rolling device mounting seat; the lifting bearing seat A is provided with a threaded hole A penetrating through the top surface and the bottom surface of the lifting bearing seat A, and the threaded hole A is matched with the screw rod A; the screw rod A is connected in the lifting bearing seat A through the threaded hole A; one end of the screw rod A is connected with the screw rod connecting seat A through a plane bearing, and the other end of the screw rod A is connected with the left end of the lower roller independent driving mechanism through a plane bearing;
the screw rod connecting seat B is arranged on the right side of the top of the rolling device mounting seat; the lifting bearing seat B is provided with a threaded hole B penetrating through the top surface and the bottom surface of the lifting bearing seat B, the threaded hole B is matched with the screw rod B, and the screw rod B is connected in the lifting bearing seat B through the threaded hole B; one end of the screw rod B is connected with the screw rod connecting seat B through a plane bearing, and the other end of the screw rod B is connected with the right end of the lower roller independent driving mechanism through a plane bearing;
the upper part of the screw rod A is fixedly connected with a bevel gear A, and the upper part of the screw rod B is fixedly connected with a bevel gear B;
the left side of the screw rod connecting seat A is fixedly connected with the servo motor C, the screw rod connecting seat A is connected with the screw rod connecting seat B through the screw rod linkage shaft, the left part of the screw rod linkage shaft is provided with a bevel gear C meshed with the bevel gear A, and the right part of the screw rod linkage shaft is provided with a bevel gear D meshed with the bevel gear B; the left end of the screw rod linkage shaft is connected with an output shaft of the servo motor C.
When a rolling device is used for tooling and debugging an aluminum strip, the distance between an upper rolling wheel and a lower rolling wheel needs to be adjusted, in the technical scheme, a servo motor C drives a screw rod linkage shaft to rotate, the screw rod linkage shaft rotates to synchronously drive a bevel gear C and a bevel gear D to rotate, the bevel gear C drives a bevel gear A to rotate, the bevel gear D drives a bevel gear B to rotate, the bevel gear A rotates to synchronously drive a screw rod A to rotate, the bevel gear B rotates to synchronously drive a screw rod B to synchronously rotate, and the screw rod A and the screw rod B synchronously rotate to synchronously drive a lifting bearing seat A and a lifting bearing seat B to ascend or descend; by the scheme, the problems of long time consumption and complexity in adjusting the distance between the upper rolling wheel and the lower rolling wheel are solved, the ascending or descending of the upper rolling wheel is controlled only on the control panel, and the labor burden is greatly reduced.
In the invention, preferably, a displacement sensor is arranged on the rolling device mounting seat, the displacement sensor is arranged above the lifting bearing seat B, and a probe of a detection probe of the displacement sensor is in contact with the top surface of the lifting bearing seat B. And a high-precision displacement sensor is adopted to detect the moving distance of the lifting bearing seat B, and the detection result directly reflects the movement condition of the roller.
In the present invention, preferably, the convex arc surface and the concave arc surface are high-temperature wear-resistant layers formed by carburizing.
In the invention, preferably, the servo motor B is connected with the upper roller through a coupler, the servo motor A is connected with the lower roller through a coupler, and the servo motor C is connected with the screw rod linkage shaft through a coupler.
In the invention, furthermore, a limiting column A is arranged at the middle section position of the upper roller, and a limiting column B is arranged at the middle section position of the lower roller; the axial directions of the upper rolling wheel and the lower rolling wheel are respectively provided with a step hole A and a step hole B; the limiting column A is matched with the stepped hole A, and the limiting column B is matched with the stepped hole B; the upper rolling wheel is sleeved on the limiting column A through the step hole A and is fastened by a connecting piece; the lower rolling wheel is sleeved on the limiting column B through the step hole B and is fastened by a connecting piece.
Another object of the present invention is to provide a control method of an hourglass pipe rolling control system, which includes: the upper roller independent driving mechanism is used for driving the upper roller to rotate and driving the upper rolling wheel to rotate; the lower roller independent driving mechanism is used for driving the lower roller to rotate and driving the lower rolling wheel to rotate; the sand leakage pipe pre-forming rolling wheel group is used for carrying out primary bending and convex rib pressing treatment synchronous treatment on the aluminum strip and limiting the aluminum strip; the scrap cleaning component A and the scrap cleaning component B are respectively used for cleaning the upper rolling wheel and the lower rolling wheel; an upper roll lifting assembly for driving the upper roll to lift to adjust a gap between the upper and lower rolling wheels; the displacement sensor is used for feeding back the lifting distance data of the upper roller lifting assembly;
the upper roller lifting assembly adjusts the gap between the upper rolling wheel and the lower rolling wheel according to data fed back by the displacement sensor, so that the pressure applied to the aluminum strip is changed, and the bending and the convex ribs of the aluminum strip are fully rolled;
the abrasion problem of the front side of the aluminum strip is improved by adjusting the rotating speed of the upper rolling wheel;
and the abrasion problem of the back surface of the aluminum strip is improved by adjusting the rotating speed of the lower rolling wheel.
Furthermore, the invention also aims to provide a control method of the hourglass pipe rolling control system, which adopts a PLC database management system to manage the operation parameters of the hourglass pipe rolling control system; the database management system prestores running parameters matched with various specifications of sandglass pipes to be produced, wherein the running parameters comprise a rotating speed value of an upper roller, a rotating speed value of a lower roller and a moving distance value of the upper roller detected by a displacement sensor; the database management system can automatically output the preset rotating speed value of the upper roller and the preset rotating speed value of the lower roller according to the width, the height and the thickness of the sand leakage pipe to be produced, and the displacement sensor detects the moving distance value of the upper roller; the operation parameters in the database management system can be modified and stored according to actual requirements. The control method can shorten the debugging time of a worker for replacing a production product on the hourglass pipe production line, and simultaneously reduces the aluminum strips wasted in the debugging process and the debugging cost.
As described above, the hourglass pipe rolling control system and method of the invention have the following beneficial effects:
firstly, the contact state of the rolling wheel group and the aluminum strip is changed from line contact to point contact, and the aluminum strip is limited to a certain extent; the problem that the aluminum strip is easy to shift is solved, and the welding stability of the hourglass pipe is improved; the single rolling wheel carries out convex rib pressing and preforming on the aluminum strip synchronously, so that the number of rolling devices of the sand leakage pipe production line can be reduced, the production line cost is saved, and the working procedures are reduced. Secondly, the independent regulation and control of the output rotating speeds of the upper roller and the lower roller are realized, and the problem that the abrasion loss of a certain side of the aluminum strip is larger due to the unreasonable matching of the output rotating speeds of the servo motor A and the servo motor B is solved. Thirdly, the control method of the hourglass pipe rolling control system can shorten the debugging time of workers on the hourglass pipe production line when replacing production products, reduce labor force, reduce aluminum strips wasted in the debugging process and reduce debugging cost.
Drawings
FIG. 1 is a schematic view I of a hourglass pipe rolling control system
FIG. 2 is a schematic diagram of a hourglass pipe rolling control system II
FIG. 3 is a schematic structural view of a hourglass pipe preforming rolling wheel set
FIG. 4 is an enlarged view of A in FIG. 3, showing the contact state of the hourglass pipe preforming roller set and the aluminum strip
FIG. 5 is an assembly schematic diagram of a hourglass pipe preforming roller set and rollers
In the figure, 1-a rolling device mounting seat, 5-a servo motor A, 6-a lower roller, 7-a lifting bearing seat A, 8-a lifting bearing seat B, 9-a servo motor B, 10-an upper roller, 11-a screw rod connecting seat A, 12-a screw rod connecting seat B, 13-a servo motor C, 14-a screw rod linkage shaft, 15-a scrap cleaning component A, 16-a scrap cleaning component B, 17-a screw rod A, 20-a displacement sensor, 21-an upper rolling wheel, 22-a step hole A, 23-an aluminum strip, 24-a step hole B, 25-a lower rolling wheel, 26-a convex ring edge, 27-a concave ring edge, 28-a concave ring groove, 29-a convex ring surface, 30-a limiting column A and 31-a limiting column B.
Detailed Description
To facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the specific embodiments described below.
It should be particularly noted that when an element is referred to as being "fixed to, connected to or communicated with" another element, it can be directly fixed to, connected to or communicated with the other element or indirectly fixed to, connected to or communicated with the other element through other intermediate connecting components.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the present invention.
Examples
The invention is described in further detail with reference to the accompanying drawings 1 to 5 and examples:
in the embodiment, the hourglass pipe rolling control system comprises a rolling device mounting seat 1, wherein the rolling device mounting seat 1 is provided with an upper roller 10 independent driving mechanism, a lower roller 6 independent driving mechanism and an hourglass pipe pre-forming rolling wheel set;
the lower roller independent driving mechanism is arranged at the lower part of the rolling device mounting seat 1, the lower roller 6 independent driving mechanism comprises a lower roller 6 and a servo motor A, and the lower roller 6 is connected with the servo motor A5; the upper roller independent driving mechanism is arranged in the middle of the rolling device mounting seat 1 and comprises an upper roller 10 and a servo motor B9, and the upper roller 10 is connected with the servo motor B9; the upper roller 10 and the lower roller 6 are arranged in parallel; in operation, the servo motor B9 drives the upper roller 10 to rotate clockwise, and the upper roller 10 rotates clockwise to drive the upper rolling wheel 21 to rotate clockwise; the servo motor A5 drives the lower roller 6 to rotate anticlockwise, and the lower roller 6 rotates anticlockwise to drive the lower rolling wheel 25 to rotate clockwise; the aluminum strip 23 is rolled and deformed between the upper rolling wheel 21 and the lower rolling wheel 25, in the debugging process, a worker can observe and judge the abrasion loss of the front surface and the back surface of the aluminum strip 23 in the rolling process of the aluminum strip 23, if the abrasion loss of the front surface of the aluminum strip 23 is large, the output rotating speed of the servo motor B9 can be correspondingly reduced or the output rotating speed of the servo motor A5 can be correspondingly reduced, and if the abrasion loss of the back surface of the aluminum strip 23 is large, the output rotating speed of the servo motor B9 can be correspondingly increased or the output rotating speed of the servo motor A5 can be correspondingly reduced; through the adjusting mode, the problem that the aluminum belt 23 is slightly abraded due to unreasonable matching of the output rotating speeds of the servo motor B9 and the servo motor A5 can be solved.
In the embodiment, the hourglass pipe pre-forming rolling wheel set comprises an upper rolling wheel 21 and a lower rolling wheel 25, wherein the upper rolling wheel 21 is arranged in the middle of the upper roller 10, the lower rolling wheel 25 is arranged in the middle of the lower roller 6, and the upper rolling wheel 21 and the lower rolling wheel 25 are cylindrical metal bodies; the outer circumferential surface of the upper rolling wheel 21 is a convex arc surface, and the outer circumferential surface of the lower rolling wheel 25 is a concave arc surface; the convex arc surface is provided with two concave ring grooves 28, and the concave arc surface is provided with two convex ring surfaces 29 matched with the concave ring grooves 28; the convex arc surface is provided with a plurality of convex annular edges 26, and the concave arc surface is provided with a plurality of concave annular edges 27 matched with the corresponding convex annular edges 26. The convex cambered surface and the concave cambered surface are high-temperature wear-resistant layers formed through carburizing treatment.
When the aluminum strip 23 is rolled between the upper rolling wheel 21 and the lower rolling wheel 25 for preforming, the part of the aluminum strip 23 rolled by the convex ring surface 29 is sunk into the concave ring groove 28 to form two convex ribs, so that the simultaneous operation of rib pressing and preforming of the aluminum strip 23 by a single rolling wheel is realized, and the number of rolling devices in a sand leakage pipe production line can be reduced; the arrangement of the convex annular edge 26 realizes that the contact state of the upper rolling wheel 21 to the aluminum strip 23 is point contact, and plays a certain limiting role in the aluminum strip 23; the problem that the aluminum strip 23 is easy to deviate is solved. The angle between the two faces forming the convex ring edge 26 is 165 degrees, and the angle between the two faces forming the concave ring edge 27 is 165 degrees, so that the convex ring edge 26 is a convex edge with small convex degree, and the concave ring edge 27 is a concave edge with small concave degree, so that the convex edge and the concave edge can still play a certain limiting role under the condition that the aluminum strip 23 is not obviously bent.
In the present embodiment, the scrap cleaning assembly includes scrap cleaning assembly a15 and scrap cleaning assembly B16; the scrap cleaning component A15 is arranged above the upper rolling wheel 21, the scrap cleaning component A15 comprises a right-angle mounting plate A, a cylinder A, a soft cotton mounting block A and a soft cotton A, the right-angle mounting plate A is fixedly mounted in the middle of one side of the mounting seat 1 of the rolling device, the cylinder A is mounted on the right-angle mounting plate A, a telescopic rod of the cylinder A is connected with the top of the soft cotton mounting block A, and the bottom of the soft cotton mounting block A is provided with the soft cotton A; the clean subassembly B16 of sweeps sets up in the below of rolling wheel 25 down, and the clean subassembly B16 of sweeps includes right angle mounting panel B, cylinder B, soft cotton installation piece B and soft cotton B, and right angle mounting panel B fixed mounting is in the lower part of rolling device mount pad 1 one side, and cylinder B installs on right angle mounting panel B, and the top of soft cotton installation piece B is connected to cylinder B's telescopic link, and soft cotton B is installed to soft cotton installation piece B's bottom. When the rolling device is started to work, the air cylinder A drives the soft cotton mounting block A to move downwards, so that the soft cotton A at the bottom of the soft cotton mounting block A is attached to the top of the upper rolling wheel 21; the cylinder B drives the soft cotton mounting block B to move upwards, so that the soft cotton B at the bottom of the soft cotton mounting block B is attached to the bottom of the lower rolling wheel 25, and at the moment, when the upper rolling wheel 21 and the lower rolling wheel 25 rotate, the scraps on the ring surface of the outer ring are respectively swept away by the soft cotton A and the soft cotton B; the working mode solves the cleaning problem on the ring surface of the outer rings of the upper rolling wheel 21 and the lower rolling wheel 25, and avoids the influence of scraps on the working process of the rolling device.
The independent driving mechanism of the upper roller 10 further comprises a lifting bearing seat A7 and a lifting bearing seat B8, and the left part and the right part of the upper roller 10 are respectively connected with the lifting bearing seat A7 and the lifting bearing seat B8.
The hourglass tube rolling control system in the embodiment further comprises an upper roller lifting assembly, wherein the upper roller lifting assembly comprises a servo motor C13, a screw rod A17, a screw rod B, a screw rod connecting seat A11, a screw rod connecting seat B12 and a screw rod linkage shaft 14; the screw rod connecting seat A11 is arranged on the left side of the top of the rolling device mounting seat 1; the lifting bearing seat A7 is provided with a threaded hole A penetrating through the top surface and the bottom surface of the lifting bearing seat A7, and the threaded hole A is matched with the screw rod A17; the screw rod A17 is connected in the lifting bearing seat A7 through a threaded hole A; one end of the screw rod A17 is connected with the screw rod connecting seat A11 through a plane bearing, and the other end is connected with the left end of the lower roller independent driving mechanism through the plane bearing. The screw rod connecting seat B12 is arranged on the right side of the top of the rolling device mounting seat 1; the lifting bearing seat B8 is provided with a threaded hole B penetrating through the top surface and the bottom surface of the lifting bearing seat B, the threaded hole B is matched with the screw rod B, and the screw rod B is connected in the lifting bearing seat B8 through the threaded hole B; one end of the screw rod B is connected with a screw rod connecting seat B12 through a plane bearing, and the other end of the screw rod B is connected with the right end of the lower roller independent driving mechanism through the plane bearing. The upper part of the screw rod A17 is fixedly connected with a bevel gear A, and the upper part of the screw rod B is fixedly connected with a bevel gear B; the left side of the screw rod connecting seat A11 is fixedly connected with a servo motor C13, the screw rod connecting seat A11 is connected with a screw rod connecting seat B12 through a screw rod linkage shaft 14, a bevel gear C meshed with the bevel gear A is arranged at the left part of the screw rod linkage shaft 14, and a bevel gear D meshed with the bevel gear B is arranged at the right part of the screw rod linkage shaft 14; the left end of the screw rod linkage shaft 14 is connected with an output shaft of a servo motor C13.
When the rolling device is used for tooling and debugging an aluminum strip 23, the distance between the upper rolling wheel 21 and the lower rolling wheel 25 needs to be adjusted, in the technical scheme, the servo motor C13 drives the screw rod linkage shaft 14 to rotate, the screw rod linkage shaft 14 rotates to synchronously drive the bevel gear C and the bevel gear D to rotate, the bevel gear C drives the bevel gear A to rotate, the bevel gear D drives the bevel gear B to rotate, the bevel gear A rotates to drive the screw rod A to synchronously rotate, the bevel gear B rotates to drive the screw rod B to synchronously rotate, and the screw rod A17 and the screw rod B synchronously rotate to synchronously drive the lifting bearing seat A7 and the lifting bearing seat B8 to ascend or descend; the scheme solves the problems of long time consumption and complexity in adjusting the distance between the upper rolling wheel 21 and the lower rolling wheel 25, realizes that the upper rolling wheel 21 is controlled to ascend or descend only on the control panel, and greatly reduces the labor burden.
The rolling device mounting seat 1 is provided with a displacement sensor 20, the displacement sensor 20 is arranged above the lifting bearing seat B8, and a probe of the displacement sensor 20 is detected to be in contact with the top surface of the lifting bearing seat B8. And a high-precision displacement sensor 20 is adopted to detect the moving distance of the lifting bearing seat B8, and the detection result directly reflects the movement condition of the roller.
The servo motor B9 is connected with the upper roller 10 through a coupler, the servo motor A5 is connected with the lower roller 6 through a coupler, and the servo motor C13 is connected with the lead screw linkage shaft 14 through a coupler.
A limiting column A30 is arranged at the middle section of the upper roller 10, and a limiting column B31 is arranged at the middle section of the lower roller 6; the axial directions of the upper rolling wheel 21 and the lower rolling wheel 25 are respectively provided with a step hole A22 and a step hole B24; the limiting column A30 is matched with the stepped hole A22, and the limiting column B31 is matched with the stepped hole B24; the upper rolling wheel 21 is sleeved on the limiting column A30 through a step hole A22 and is fastened by a connecting piece; the lower rolling wheel 25 is sleeved on the limiting column B31 through a step hole B24 and is fastened by a connecting piece.
Another object in the present embodiment is to provide a control method of an hourglass pipe rolling control system, which includes: the upper roller independent driving mechanism is used for driving the upper roller 10 to rotate and driving the upper rolling wheel 21 to rotate; the lower roll independent driving mechanism is used for driving the lower roll 6 to rotate and driving the lower rolling wheel 25 to rotate; the sand leakage pipe pre-forming rolling wheel set is used for carrying out primary bending and convex rib pressing treatment synchronous treatment on the aluminum strip 23 and limiting the aluminum strip 23; a scrap cleaning assembly a and a scrap cleaning assembly B for cleaning the upper and lower rollers 21 and 25, respectively; an upper roll lifting assembly for driving the lifting of the upper roll 10 to adjust a gap between the upper and lower rollers 21 and 25; a displacement sensor 20 for feeding back data of the distance of the lifting assembly of the upper roller 10;
the upper roller lifting assembly adjusts the gap between the upper rolling wheel 21 and the lower rolling wheel 25 according to the data fed back by the displacement sensor 20, so that the pressure applied on the aluminum strip 23 is changed, and the bending and convex ribs of the aluminum strip 23 are fully rolled;
the abrasion problem of the front surface of the aluminum strip 23 is improved by adjusting the rotating speed of the upper rolling wheel 21;
by adjusting the rotating speed of the lower rolling wheel 25, the problem of abrasion of the back surface of the aluminum strip 23 is improved.
The embodiment further provides a control method of the hourglass pipe rolling control system, which adopts a PLC database management system to manage the operation parameters of the hourglass pipe rolling control system; the database management system prestores running parameters matched with various specifications of sandglass pipes, including the rotating speed value of the upper roller 10 and the rotating speed value of the lower roller 6, and the displacement sensor 20 detects the moving distance value of the upper roller 10; the database management system automatically outputs the preset rotating speed value of the upper roller 10 and the preset rotating speed value of the lower roller 6 according to the width, the height and the thickness of the sand leakage pipe to be produced, and the displacement sensor 20 detects the moving distance value of the upper roller 10; the operation parameters in the database management system can be modified and stored according to actual requirements. The control method can shorten the debugging time of a worker for replacing a production product on the hourglass pipe production line, and simultaneously reduces the aluminum strips 23 wasted in the debugging process and the debugging cost.

Claims (7)

1. The utility model provides an hourglass pipe rolling control system, includes rolling device mount pad (1), its characterized in that: the rolling device mounting seat (1) is provided with an upper roller independent driving mechanism, a lower roller independent driving mechanism and an hourglass pipe preforming rolling wheel set;
the lower roller independent driving mechanism is arranged at the lower part of the rolling device mounting seat (1), the lower roller independent driving mechanism comprises a lower roller (6) and a servo motor A (5), and the lower roller (6) is connected with the servo motor A (5);
the upper roller independent driving mechanism is arranged in the middle of the rolling device mounting seat (1), the upper roller independent driving mechanism comprises an upper roller (10) and a servo motor B (9), and the upper roller (10) is connected with the servo motor B (9); the upper roller (10) and the lower roller (6) are arranged in parallel;
the sand leakage pipe pre-forming rolling wheel set comprises an upper rolling wheel (21) and a lower rolling wheel (25), the upper rolling wheel (21) is arranged in the middle of the upper roller (10), the lower rolling wheel (25) is arranged in the middle of the lower roller (6), and the upper rolling wheel (21) and the lower rolling wheel (25) are both cylindrical metal bodies; the outer circumferential surface of the upper rolling wheel (21) is a convex arc surface, and the outer circumferential surface of the lower rolling wheel (25) is a concave arc surface; the convex arc surface is provided with two concave ring grooves (28), and the concave arc surface is provided with two convex ring surfaces (29) matched with the concave ring grooves (28); the convex arc surface is provided with a plurality of convex ring edges (26), and the concave arc surface is provided with a plurality of concave ring edges (27) matched with the convex ring edges (26).
2. The hourglass tube rolling control system of claim 1, wherein: further comprising a scrap cleaning assembly A (15) and a scrap cleaning assembly B (16);
the scrap cleaning component A (15) is arranged above the upper rolling wheel (21), the scrap cleaning component A (15) comprises a right-angle mounting plate A, a cylinder A, a soft cotton mounting block A and a soft cotton A, the right-angle mounting plate A is fixedly mounted in the middle of one side of the rolling device mounting seat (1), the cylinder A is mounted on the right-angle mounting plate A, a telescopic rod of the cylinder A is connected with the top of the soft cotton mounting block A, and the soft cotton A is mounted at the bottom of the soft cotton mounting block A;
the scrap cleaning component B (16) is arranged below the lower rolling wheel (25), the scrap cleaning component B (16) comprises a right-angle mounting plate B, a cylinder B, a soft cotton mounting block B and a soft cotton B, the right-angle mounting plate B is fixedly mounted on the lower portion of one side of the rolling device mounting seat (1), the cylinder B is mounted on the right-angle mounting plate B, an expansion rod of the cylinder B is connected with the top of the soft cotton mounting block B, and the soft cotton B is mounted at the bottom of the soft cotton mounting block B.
3. The hourglass tube rolling control system of claim 1, wherein: the independent upper roller driving mechanism further comprises a lifting bearing seat A (7) and a lifting bearing seat B (8), and the left part and the right part of the upper roller (10) are respectively connected with the lifting bearing seat A (7) and the lifting bearing seat B (8).
4. The hourglass tube rolling control system of claim 3, wherein: the device comprises a roller lifting assembly, a roller lifting assembly and a roller lifting assembly, wherein the roller lifting assembly comprises a servo motor C (13), a screw rod A (17), a screw rod B, a screw rod connecting seat A (11), a screw rod connecting seat B (12) and a screw rod linkage shaft (14);
the screw rod connecting seat A (11) is arranged on the left side of the top of the rolling device mounting seat (1); the lifting bearing seat A (7) is provided with a threaded hole A penetrating through the top surface and the bottom surface of the lifting bearing seat A, and the threaded hole A is matched with the screw rod A (17); the screw rod A (17) is connected in the lifting bearing seat A (7) through the threaded hole A; one end of the screw rod A (17) is connected with the screw rod connecting seat A (11) through a plane bearing, and the other end of the screw rod A is connected with the left end of the lower roller independent driving mechanism through a plane bearing;
the screw rod connecting seat B (12) is arranged on the right side of the top of the rolling device mounting seat (1); the lifting bearing seat B (8) is provided with a threaded hole B penetrating through the top surface and the bottom surface of the lifting bearing seat B, the threaded hole B is matched with the screw rod B, and the screw rod B is connected in the lifting bearing seat B (8) through the threaded hole B; one end of the screw rod B is connected with the screw rod connecting seat B (12) through a plane bearing, and the other end of the screw rod B is connected with the right end of the lower roller independent driving mechanism through a plane bearing;
the upper part of the screw rod A (17) is fixedly connected with a bevel gear A, and the upper part of the screw rod B is fixedly connected with a bevel gear B;
the left side of the screw rod connecting seat A (11) is fixedly connected with the servo motor C (13), the screw rod connecting seat A (11) is connected with the screw rod connecting seat B (12) through the screw rod linkage shaft (14), the left part of the screw rod linkage shaft (14) is provided with a bevel gear C meshed with the bevel gear A, and the right part of the screw rod linkage shaft (14) is provided with a bevel gear D meshed with the bevel gear B; the left end of the screw rod linkage shaft (14) is connected with an output shaft of the servo motor C (13).
5. The hourglass tube rolling control system of claim 3, wherein: be provided with displacement sensor (20) on rolling device mount pad (1), displacement sensor (20) set up the top of lift bearing frame B (8), displacement sensor (20) detect probe with the top surface contact of lift bearing frame B (8).
6. The hourglass tube rolling control system of claim 1, wherein: the convex cambered surface and the concave cambered surface are high-temperature wear-resistant layers formed through carburizing treatment.
7. The hourglass tube rolling control system of claim 4, wherein: the servo motor B (9) is connected with the upper roller (10) through a coupler, the servo motor A (5) is connected with the lower roller (6) through a coupler, and the servo motor C (13) is connected with the screw rod linkage shaft (14) through a coupler.
CN201810701456.9A 2018-06-29 2018-06-29 Hourglass pipe rolling control system Active CN108906894B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101091959A (en) * 2006-06-22 2007-12-26 葫芦岛市钢管工业有限公司 Not isodiametric rollers in use for molding welded steel pipes
KR20110059464A (en) * 2009-11-27 2011-06-02 현대제철 주식회사 Edging roll
CN102601122A (en) * 2012-03-13 2012-07-25 西安交通大学 Alternating-current direct-drive servo device for main transmission and two-roller radial spacing adjustment
CN203409042U (en) * 2013-08-02 2014-01-29 武汉钢铁(集团)公司 Device for roller forming and combined equipment thereof
CN203526112U (en) * 2013-10-28 2014-04-09 邢台朝阳机械制造有限公司 Battery pole piece roller wiping device
CN206153291U (en) * 2016-11-03 2017-05-10 广州凌龙管业科技有限公司 Rolling device of developments controlled rolling variable

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101091959A (en) * 2006-06-22 2007-12-26 葫芦岛市钢管工业有限公司 Not isodiametric rollers in use for molding welded steel pipes
KR20110059464A (en) * 2009-11-27 2011-06-02 현대제철 주식회사 Edging roll
CN102601122A (en) * 2012-03-13 2012-07-25 西安交通大学 Alternating-current direct-drive servo device for main transmission and two-roller radial spacing adjustment
CN203409042U (en) * 2013-08-02 2014-01-29 武汉钢铁(集团)公司 Device for roller forming and combined equipment thereof
CN203526112U (en) * 2013-10-28 2014-04-09 邢台朝阳机械制造有限公司 Battery pole piece roller wiping device
CN206153291U (en) * 2016-11-03 2017-05-10 广州凌龙管业科技有限公司 Rolling device of developments controlled rolling variable

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Denomination of invention: An hourglass tube rolling control system

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