Feeding device for U-shaped pre-stress concrete pile plank and control method

A technology of concrete slabs and feeding devices, applied in electrical program control, program control in sequence/logic controllers, manufacturing tools, etc., can solve problems such as insecure quality, failure to meet process requirements, and material blocking at the feeding port , to achieve the effect of improving accuracy and uniformity, saving manpower consumption and improving production efficiency

Inactive Publication Date: 2013-02-06
SHANGHAI ZHONGJI PILE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production process of concrete prestressed sheet piles, the production line adopts a multi-line layout, and each production line needs a set of feeding equipment. The mold casting is carried out through the hopper, and the discharge port of the hopper is manually controlled and c

Method used

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  • Feeding device for U-shaped pre-stress concrete pile plank and control method
  • Feeding device for U-shaped pre-stress concrete pile plank and control method
  • Feeding device for U-shaped pre-stress concrete pile plank and control method

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] The feeding device for U-shaped prestressed concrete sheet piles provided by the present invention includes a hopper 6 and a cart traveling mechanism, such as figure 1 , figure 2 As shown, the hopper 6 is installed on a support stand 12 through the top fixing plate 10, and a plurality of load cells 9 (in this embodiment, four load cells are used) are installed on the support stand 12, Four groups of traveling wheels 7 are installed at the bottom of the supporting stand 12, and the traveling wheels 7 are driven by a motor 11 installed on the supporting stand 12, and the supporting stand 12 can follow the track of the cart traveling mechanism under the drive of the traveling wheels. Horizontal running for cross-line fabric;

[0041] The discharge port 21 of the hopper 6 is provided with at least one radian discharge gate 1, pr...

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Abstract

The invention discloses a feeding device for a U-shaped pre-stress concrete pile plank and a control method. A proportion integration differentiation (PID) controller transmits an instruction to a variable-frequency motor and a servo electric cylinder according to a preset flow value, the variable-frequency motor drives a two-directional helical shaft to rotate, and the servo electric cylinder controls a radian discharging door to be opened to a certain degree; a weighing sensor collects a weight signal of a material in real time and transmits the weight signal to the PID controller; the PID controller transmits a processed result to the variable-frequency motor and the servo electric cylinder; the variable-frequency motor controls the two-directional helical shaft to be roughly adjusted; when the real flow of the material does not stay within a set threshold value range, the PID controller controls the servo electric cylinder to change the openness of the radian discharging door so as to perform the fine adjustment; and when the real flow reaches a feeding target value or a minimal alarming value, the PID controller controls the variable-frequency motor and the servo electric cylinder to stop working. One hopper is used for feeding different production lines, and the discharging speed is controlled in a closed-loop way, so that the production efficiency is improved, the labor is saved, the cost is reduced, and the feeding accuracy and uniformity can be guaranteed.

Description

technical field [0001] The invention relates to production equipment for prestressed concrete sheet piles, which belongs to a feeding device and a control method thereof, and is especially suitable for the process of producing U-shaped prestressed concrete sheet piles by a pretensioning method. Background technique [0002] The pretensioning method is a method of pre-stressing the concrete members during the prefabrication process to improve the performance of the members in order to improve the crack resistance of reinforced concrete members and avoid premature cracks in reinforced concrete members. It plays an important role in engineering construction. play an important role. Usually, the prestressed tendons are stretched before pouring concrete, and the stretched prestressed tendons are temporarily anchored on the pedestal or steel form, and then the concrete is poured until the concrete strength reaches no less than 75% of the concrete design strength value, ensuring th...

Claims

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Application Information

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IPC IPC(8): B28B21/02G05B19/04
Inventor 张后禅朱双彪
Owner SHANGHAI ZHONGJI PILE IND
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