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Special-shaped steel tube forming technology and mold replacement device for semitrailer fence

A special-shaped steel pipe and forming process technology, which is applied in the field of special-shaped steel pipe forming process and mold replacement device for semi-trailer guardrail, can solve the problems of not meeting the development trend of market demand, troublesome mold replacement, complicated production process, etc., and achieve high forming qualified, Good product surface quality and uniform molding process

Inactive Publication Date: 2018-09-14
山东舜世高科实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current production process of straight seam welded special-shaped steel pipes used on semi-trailer guardrails is relatively complicated, resulting in high production costs and does not meet the development trend of market demand; and the current production process is troublesome when replacing molds, especially When replacing the left and right molds, it takes a long time and the alignment is not good

Method used

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  • Special-shaped steel tube forming technology and mold replacement device for semitrailer fence
  • Special-shaped steel tube forming technology and mold replacement device for semitrailer fence
  • Special-shaped steel tube forming technology and mold replacement device for semitrailer fence

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A special-shaped steel pipe forming process for a semi-trailer guardrail, specifically as follows:

[0042] Uncoiling, install the steel strip coil on the uncoiler, and the uncoiler drives the steel strip coil to rotate and cooperate with the blade to disassemble the steel coil. The center of the steel strip coil is located on the center line of the unit, and a micro-braking device is installed on the uncoiler to prevent the steel strip from being rolled back into an elastic loose coil during an emergency stop.

[0043] Leveling, straight pinch leveling machine middle pressure roller and shovel cooperate with uncoiler to disassemble the steel strip head, and send the steel strip to straight pinch leveler. The shovel cooperates with the straight head pressure roller to straighten the head of the steel strip, and then sends the steel strip to the pinch roller. The pinch roller presses down to clamp the steel strip, and turns the main motor to send the steel strip to the p...

Embodiment 2

[0063] The difference between this embodiment and Embodiment 1 is that the elastic blocking reset device 5 includes a cross bar perpendicular to the piston rod of the two-way hydraulic cylinder and fixedly connected to the support beam, and a stopper 7 sleeved on the cross bar. Both sides of the block are respectively provided with springs 11 connected to the support beam. The two springs are arranged in a figure-eight shape, and the connection point between the spring and the block is higher than the axis of the cross bar. The lower edges on both sides are provided with circular arc chamfers, the distance from the axis of the cross bar to the front and rear sides of the boss lower part of the block is less than the distance to the upper surface of the support beam, and the front and rear edges of the lower end of the electromagnet are also provided with circular arc chamfers.

[0064] When the electromagnet does not touch the block, the springs on both sides keep it in a balan...

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Abstract

The invention relates to a special-shaped steel tube forming technology for a semitrailer fence. The special-shaped steel tube forming technology for the semitrailer fence comprises the steps of first, uncoiling, wherein steel strip rolls are unfolded; second, leveling, wherein unfolded steel strips are leveled, and are conveyed to a next station; third, end flattening and butt welding, wherein the head portion and the tail portion of one leveled steel strip are cut to be flattened, and the material tail of the steel strip with ends cut to be flattened and the material head of a next steel strip with ends cut to be flattened are welded together; fourth, beforehand storage, wherein the steel strips subjected to butt joint are sent into a loop storage silo; fifth, forming, wherein the steelstrips in the loop storage silo are sent to a forming machine, and are sequentially bent into tube blanks to be welded; sixth, high efficiency welding, wherein high efficiency welding is carried out after the two ends, in butt joint, of every two adjacent tube blanks are pressed to form a certain open angle; seventh, water cooling, wherein the steel tubes subjected to high efficiency welding are cooled to the room temperature in a spraying manner; eighth, special shape gradual sizing, wherein the steel tubes subjected to water cooling are sized through a sizing unit; and ninth, profile machining, wherein the sized steel tubes are segmented into steel tube bodies of specific lengths.

Description

technical field [0001] The invention relates to the technical field of steel tube forming, in particular to a process for forming a special-shaped steel tube for a semi-trailer guardrail and a mold replacement device. Background technique [0002] Straight seam steel pipe is mainly used in water supply engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation, urban construction, etc. It can be used for liquid transportation, such as water supply and drainage, and can also be used for gas transportation, such as gas, steam, liquefied petroleum It can also be used as a structure, as a piling pipe, as a bridge, and as a pipe for docks, roads, and building structures. In recent years, longitudinal welded pipes have also been widely used in the field of automobiles and furniture and home decoration, especially in the use of semi-trailer guardrails. However, the current production process of straight seam welded special-shaped steel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/08B21C37/083B21D37/14
CPCB21C37/0803B21C37/083B21D37/14
Inventor 邵长亮宫绍庆许维忠
Owner 山东舜世高科实业有限公司
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