Cold-bending production technology integrated with spraying treatment and cold-bending production line integrated with spraying unit

A production process, cold bending technology, applied in the field of metallurgy, can solve the problems of high cost, large manpower and material resources, etc., to reduce demand, improve production efficiency and production benefits, and reduce the cost of manpower and material resources

Pending Publication Date: 2019-04-09

CISDI RES & DEV CO LTD

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AI-Extracted Technical Summary

Problems solved by technology

In the existing production process, if the cold-formed components are to be sprayed, it is necessary to use lifting equipment and intermediate warehouses for connect...

Abstract

The invention provides an online cold-bending production technology integrated with spraying treatment. Cold-state plates and strips are subjected to forming treatment to form cold-bent components having specified shapes, and spraying treatment is performed before or after forming of the cold-bent components. The invention further provides a continuous cold-bending production line integrated witha spraying unit. The production line comprises a forming unit and the spraying unit; the spraying unit is integrated before or behind the forming unit according to the production procedure. By the aidof the production technology and the production line, feeding and discharging links before spraying treatment are omitted, so that the requirements for hoisting equipment and stockpiling warehouse areas in the production process are reduced, the workloads of inventory keepers and crane operators are also reduced, the manpower and material resource costs are reduced substantially, and the production efficiency and the production benefit can be increased.

Application Domain

Other manufacturing equipments/tools

Technology Topic

Material resourcesManufacturing engineering +2

Image

Examples

Experimental program(3)

Example Embodiment

[0028] Example one

[0029] The on-line cold bending production process with integrated spray processing provided by this embodiment transforms the cold-formed strip into a cold-formed component with a specified shape after being formed, and the spray processing is performed before the cold-formed component is formed.

[0030] Among them, the spraying process can not only remove rust, oxides and dirt, but also achieve the required uniform roughness under the action of the violent impact and friction of the abrasive, expand the physical adsorption of the material surface, and enhance The mechanical adhesion of the anti-corrosion layer to the surface of the component. In this embodiment, the sprayed medium can be steel shot or steel grit.

[0031] In this embodiment, see figure 1 , figure 2 , First send the cold strip into a spiral looper 5 for storage and supply, and then, the material supplied by the spiral looper 5 is first sprayed, then molded, sizing and straightened in sequence And cut to length, and finally, collect the cold-formed parts cut to length into storage.

[0032] In this embodiment, the cold-formed member is an open profile. In this embodiment, the cold-formed component is a channel steel. In the specific implementation process, the cold-formed component may also be an angle steel or other open section suitable for the cold-bending process.

[0033] In the specific implementation process, if the original material is coiled, the original material can be uncoiled, straightened, cut, and butt welded in sequence before the cold strip enters the spiral loop 5 to form a continuous cold State plate with.

[0034] In the specific implementation process, the spiral looper 5 can be equipped with a twisting device before and after it is required. For example, a twisting device is set at the entrance of the spiral looper 5 to make the cold strip after butt welding change from horizontal to vertical by the twisting device. The state enters the spiral looper 5 again, or a twisting device is provided at the exit of the spiral looper 5, so that the cold strip at the exit of the spiral looper 5 is twisted and the orientation is changed.

[0035] The production process of this embodiment integrates the spraying process into the existing on-line cold bending production process, which not only omits the intermediate links of blanking, storing, and reloading before spraying, but also reduces the lifting during the production process. The requirements for equipment and storage areas do not need to be equipped with warehouse management and crane operators required for connection, which greatly reduces the cost of manpower and material resources, which is conducive to improving production efficiency and production efficiency; in addition, the production process of this embodiment is integrated The spray treatment process can make the surface cleanliness level of the building reach Sa2.5 or above.

[0036] Corresponding, see figure 1 , figure 2 This embodiment also provides a continuous cold-bending production line with an integrated injection unit, including a forming unit 6 and an injection unit 10. The injection unit 10 is arranged in front of the forming unit 6 and can first spray the cold strip. Then carry out the molding process.

[0037] In this embodiment, the continuous cold bending production line of the integrated jet unit also includes a spiral looper 5, a sizing and straightening unit 9 and a cutting device 11, the spiral looper 5, the spraying unit 10, the forming unit 6, and the sizing and straightening unit. The unit 9 and the cutting device 11 are arranged in sequence, so that the cold strip passes through the spiral looper 5, the injection unit 10, the forming unit 6, the sizing and straightening unit 9 and the cutting device 11 for storage and feeding, injection processing, and forming processing. , Sizing and straightening and cutting to length. Specifically, the cutting device 11 may be a flying saw.

[0038] In the specific implementation process, if the original material is rolled, the continuous cold bending production line of the integrated jet unit also includes an uncoiler 1, a straightening machine 2, a head cutting device 3, and a butt welding device 4. The uncoiler 1, straightening The straightening machine 2, the head cutting device 3 and the butt welding device 4 are sequentially arranged in front of the spiral looper 5, and the materials are respectively uncoiled, straightened, cut head, and butt welded to form a continuous cold strip.

[0039] In this embodiment, the injection unit 10 includes at least two injection devices, and each injection device is connected in series, which can increase the processing speed of the injection unit, thereby increasing the processing speed of the entire production line. For example, the processing speed of a single injection device is 0.5~ Between 8m/min, the processing speed of the production line composed of other processes is 10-40m/min, you can configure multiple injection devices and connect them in series to increase the processing speed of the entire injection device and the processing speed of the entire production line .

[0040] In this embodiment, the spraying device is a vertical spraying device. The vertical spraying device sprays projectiles or sand on the material and then automatically falls, without forming projectiles on the surface of the material. Therefore, the effect of cleaning and rust removal is better than horizontal. Type spraying device is better. However, in the actual implementation process, the spray device can also be a horizontal spray device.

[0041] In this embodiment, see Figure 7 The spray unit 10 is provided with a plurality of nozzles 101, the nozzles 101 are distributed on both sides of the cold strip, so that both sides of the cold strip can be sprayed, so that both sides of the final product have high In the specific implementation process, the nozzle 101 can also be arranged on the side of the cold strip according to requirements.

[0042] The production line of this embodiment integrates the injection processing unit into the existing on-line cold bending production process, which not only omits the intermediate links of blanking, storing, and reloading before injection processing, but also reduces the need for lifting equipment and lifting equipment during the production process. There is no need for the storage area to be equipped with warehouse management and crane operators required for connection, which greatly reduces the cost of manpower and material resources, which is beneficial to improve production efficiency and production efficiency; in addition, the production process of this embodiment adopts integrated spray processing The process can make the surface cleanliness level of the building reach Sa2.5 or above.

Example Embodiment

[0043] Example two

[0044] This embodiment provides an online cold bending production process with integrated spray processing. The difference between the online cold bending production process with integrated spray processing in this embodiment and the first embodiment is that the material is sprayed after the cold-formed component is formed. Moreover, in this embodiment, the cold-formed member can be either an open profile or a closed profile. The closed profile can be one of a square tube, a rectangular tube, a round tube or other heterogeneous tubes.

[0045] Specifically, see image 3 , Figure 4 , The on-line cold bending process of integrated jet processing of this embodiment includes: feeding the cold strip into a spiral looper 5 for storage and feeding, and forming the materials supplied by the spiral looper 5 first After processing and sizing and straightening, spray processing and sizing and cutting are carried out in sequence.

[0046] This embodiment also provides a continuous cold bending production line with integrated jet unit, see image 3 , Figure 4 , Including a forming unit 6 and an injection unit 10, the injection unit 10 is arranged after the forming unit 6, and can perform forming processing on the cold strip and then spray processing.

[0047] In this embodiment, the continuous cold bending production line of the integrated jet unit also includes a spiral looper 5, a sizing and straightening unit 9 and a cutting device 11, the spiral looper 5, the forming unit 6, the sizing and straightening unit 9, the jet The unit 10 and the cutting device 11 are arranged in sequence, so that the cold strip passes through the spiral looper 5, the forming unit 6, the sizing and straightening unit 9, the jetting unit 10 and the cutting device 11 for storage, feeding, forming, and sizing. Straightening, spray processing and cut to length. Specifically, the cutting device 11 may be a flying saw.

[0048] In the specific implementation process, if the original material is rolled, the continuous cold bending production line of the integrated jet unit also includes an uncoiler 1, a straightening machine 2, a head cutting device 3, and a butt welding device 4. The uncoiler 1, straightening The straightening machine 2, the head cutting device 3 and the butt welding device 4 are sequentially arranged in front of the spiral looper 5, and the materials are respectively uncoiled, straightened, cut head, and butt welded to form a continuous cold strip.

Example Embodiment

[0049] Example three

[0050] The difference between the on-line cold bending production process of the integrated spray processing of this embodiment and the second embodiment is that the material needs to be closed welding and cooling treatment before sizing and straightening after the forming process, and the cold-formed component in this embodiment is Closed profiles, not suitable for open profiles.

[0051] Specifically, see Figure 5 , Image 6 , The materials supplied by the spiral looper 5 are first subjected to forming treatment, closed welding, cooling treatment, and sizing and straightening in sequence, and then spraying treatment and sizing and cutting are performed in sequence.

[0052] When the cold-formed component is a closed profile, the surface near the joint section will inevitably be re-oxidized due to high-frequency welding. The on-line cold-formed production process with integrated spray processing in this embodiment not only omits the transition before spray processing In the loading and unloading process, only one injection of the material can simultaneously remove the welding slag around the weld and the rust, oxide and dirt on the surface of the cold-formed construction, and obtain high-quality cold-formed components. In addition, this The production process is also conducive to removing the stress caused by welding and cooling on the surface of the cold-formed component, and is conducive to improving the mechanical properties of the cold-formed component.

[0053] This embodiment also provides a continuous cold bending production line with integrated jet unit, see Figure 5 , Image 6 The continuous cold bending production line of this embodiment not only includes the spiral looper 5, the sizing and straightening unit 9 and the cutting device 11 in the second embodiment, but also includes a closed welding unit 7 for welding the cross-sections of cold-formed components and The cooling device 8 for cooling the welding seam, the spiral looper 5, the forming unit 6, the closed welding unit 7, the cooling device 8, the sizing and straightening unit 9, the jet unit 10 and the cutting device 11 are arranged in sequence, so that the cold strip Pass through spiral looper 5, forming unit 6, closed welding unit 7, cooling device 8, sizing and straightening unit 9, spraying unit 10 and cutting device 11 for storage and feeding, forming processing, closed welding, cooling processing, and sizing. Straightening, spray processing and cut-to-length processes.

[0054] In this embodiment, see Figure 8 The spray unit 10 is provided with a plurality of nozzles 101, the nozzles 101 are distributed around the cold-formed component, so that the surface of the cold-formed component can be sprayed, for example: when the cold-formed component is rectangular steel, Nozzles 101 are provided on the four sides of the rectangular steel.

[0055] When using the continuous cold bending production line in this embodiment, the intermediate links of blanking, storing, and reloading before spraying can be omitted, and only one spraying unit 10 can be used to spray the material to remove the weld at the same time. The surrounding welding slag and the rust, oxide and dirt on the surface of the cold-formed construction can obtain high-quality cold-formed parts. In addition, the production line of this embodiment is also beneficial to remove the stress caused by welding and cooling on the surface of the cold-formed parts. It is beneficial to improve the mechanical properties of cold-formed components.

PUM

Description & Claims & Application Information

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Classification and recommendation of technical efficacy words

reduce demand
Reduce manpower and material costs

Cold-bending production technology integrated with spraying treatment and cold-bending production line integrated with spraying unit

A production process, cold bending technology, applied in the field of metallurgy, can solve the problems of high cost, large manpower and material resources, etc., to reduce demand, improve production efficiency and production benefits, and reduce the cost of manpower and material resources

AI-Extracted Technical Summary

Problems solved by technology

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

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