CN-117102298-B - Continuous roll forming device and method for unequal wall thickness profile

Abstract

The invention discloses a continuous roll forming device and a continuous roll forming method for a profile with unequal wall thickness, which continuously form a material belt through a plurality of roll forming assemblies until a pre-designed profile is obtained, wherein the roll spacing of each roll forming assembly is adjustable, so that the roll spacing of each roll forming assembly is consistent with the thickness of a material belt section currently being rolled. The invention can roll the material strips with different thicknesses into the profiles with different wall thicknesses.

Inventors

• WU FANGGANG

Assignees

• 宁波市易和自动化科技有限公司

Dates

Publication Date

20260505

Application Date

20230914

Claims (2)

1. 1. A molding method of a continuous roll molding apparatus for unequal wall thickness profiles, characterized by using a continuous roll molding apparatus comprising: A plurality of roll forming assemblies located at a downstream side of the advancing direction of the material web for continuously forming the material web until a pre-designed profile is obtained, the material web having a thickness in the advancing direction thereof being unequal, the plurality of roll forming assemblies being disposed at equal intervals in the advancing direction of the material web, each roll forming assembly including two rolling wheels and a driving member for adjusting a rolling pitch of the two rolling wheels; the displacement detection device is positioned at the upstream side of the advancing direction of the material belt and is used for detecting advancing displacement data of the material belt; a thickness measuring sensor located at an upstream side of the advancing direction of the material tape for detecting the thickness of the material tape once every time the material tape advances a certain distance; The controller is coupled with the displacement detection device, the thickness measuring sensor and the driving parts of the plurality of roll forming assemblies and is used for adjusting the roll forming interval of each roll forming assembly according to the data of the displacement detection device and the thickness measuring sensor so that the roll forming interval of each roll forming assembly is always matched with the thickness of the material belt in the advancing process of the material belt; Wherein the number of the roll forming assemblies is The roll forming assembly is marked as follows according to the distance with the thickness measuring sensor 、 ...... , The distance between the material belt and the thickness measuring sensor is nearest, and the material belt advances at a constant speed with the advancing speed of Thickness measuring sensor and roll forming assembly Is of the pitch of The spacing between any two adjacent roll forming assemblies is ; The molding method comprises the following steps: detecting advancing displacement data of the material belt through a displacement detection device, and sending the data to a controller; At the time of The thickness measuring sensor detects the thickness of the material belt for the first time, and then the material belt advances every time The thickness measuring sensor detects the thickness of the material belt once, the thickness measuring sensor sends detection data to the controller, and the controller stores the detection data of the thickness measuring sensor according to the sequence of the detection time; for roll-formed assemblies At the time of The detection data of the thickness measuring sensor is started to be sequentially performed from the beginning, wherein, , When each roll forming assembly executes the detection data of the thickness measuring sensor, the roll forming assemblies adjust the roll spacing to be consistent with the detection data of the thickness measuring sensor, and the action of each roll forming assembly executing the detection data of the thickness measuring sensor is synchronous with the action of the thickness measuring sensor for detecting the thickness of the material belt.
2. 2. The molding method according to claim 1, wherein the material belt is composed of a plurality of sections, the sections are sequentially connected along the length direction of the material belt, each section includes a first equal thickness section, a first transition section, a second equal thickness section, a second transition section, a third equal thickness section and a third transition section sequentially connected along the length direction of the material belt, the thicknesses of the first equal thickness section, the second equal thickness section and the third equal thickness section are different, the thicknesses of the first transition section, the second transition section and the third transition section are gradually changed along the length direction of the material belt, and the length of the third transition section is ; In-situ thickness measuring sensor and roll forming assembly A punching device is arranged between the two sensors, and the distance between the thickness measuring sensor and the punching device is ; During the advancing process of the material belt, each time the thickness of the material belt is detected by the thickness measuring sensor to be changed from the third equal thickness section to the third transition section, the moment is recorded, and then the material belt is advanced by a distance after the moment When the blanking device punches the material belt to form a process gap on the material belt, the cutting device positions the cutting position by detecting the process gap after the material belt is rolled to form the section bar, 。

Description

Continuous roll forming device and method for unequal wall thickness profile Technical Field The invention relates to the technical field of profile processing, in particular to a continuous rolling forming device and a forming method for profiles with unequal wall thickness. Background The door anti-collision pipe is a main anti-collision component for the side collision of the automobile, so that the door anti-collision pipe has to be made of enough strength and simultaneously meets the requirement of local energy absorption. The common car door anti-collision pipe has a cross section mainly of round pipe, rectangular pipe, quincuncial pipe, elliptic pipe and the like. Based on the limitation of rolling technology, the door anti-collision pipe is formed by rolling a high-strength plate with equal thickness, and then the rolled door anti-collision pipe is welded and fixed by high-frequency welding and then cut into the required length. The anti-collision pipe for the vehicle door is heavy in material and cannot meet the requirement of local energy absorption. Disclosure of Invention The application provides a continuous roll forming device and a continuous roll forming method for unequal wall thickness profiles, which can roll a material strip with unequal thickness to form the unequal wall thickness profiles. The application provides a molding method of a continuous roll forming device for unequal wall thickness profiles, which uses a continuous roll forming device, wherein the continuous roll forming device comprises the following components: A plurality of roll forming assemblies located at a downstream side of the advancing direction of the material web for continuously forming the material web until a pre-designed profile is obtained, the material web having a thickness in the advancing direction thereof being unequal, the plurality of roll forming assemblies being disposed at equal intervals in the advancing direction of the material web, each roll forming assembly including two rolling wheels and a driving member for adjusting a rolling pitch of the two rolling wheels; the displacement detection device is positioned at the upstream side of the advancing direction of the material belt and is used for detecting advancing displacement data of the material belt; a thickness measuring sensor located at an upstream side of the advancing direction of the material tape for detecting the thickness of the material tape once every time the material tape advances a certain distance; The controller is coupled with the displacement detection device, the thickness measuring sensor and the driving parts of the plurality of roll forming assemblies and is used for adjusting the roll forming interval of each roll forming assembly according to the data of the displacement detection device and the thickness measuring sensor so that the roll forming interval of each roll forming assembly is always matched with the thickness of the material belt in the advancing process of the material belt; Wherein the number of the roll forming assemblies is The roll forming assembly is marked as follows according to the distance with the thickness measuring sensor、...... ,The distance between the material belt and the thickness measuring sensor is nearest, and the material belt advances at a constant speed with the advancing speed ofThickness measuring sensor and roll forming assemblyIs of the pitch ofThe spacing between any two adjacent roll forming assemblies is; The molding method comprises the following steps: detecting advancing displacement data of the material belt through a displacement detection device, and sending the data to a controller; At the time of The thickness measuring sensor detects the thickness of the material belt for the first time, and then the material belt advances every timeThe thickness measuring sensor detects the thickness of the material belt once, the thickness measuring sensor sends detection data to the controller, and the controller stores the detection data of the thickness measuring sensor according to the sequence of the detection time; for roll-formed assemblies At the time ofThe detection data of the thickness measuring sensor is started to be sequentially performed from the beginning, wherein,,When each roll forming assembly executes the detection data of the thickness measuring sensor, the roll forming assemblies adjust the roll spacing to be consistent with the detection data of the thickness measuring sensor, and the action of each roll forming assembly executing the detection data of the thickness measuring sensor is synchronous with the action of the thickness measuring sensor for detecting the thickness of the material belt. Preferably, the material belt is composed of a plurality of sections, the sections are sequentially connected along the length direction of the material belt, each section comprises a first equal-thickness section, a first transition section, a second equal-thickness