JPH0911025A - Sample sizing device of bar steel shearing machine - Google Patents

Abstract

PURPOSE: To enable sampling per bar steel of a selected groove, simultaneous sampling with ordered length, and setting of sample length in a sample sizing device of a bar steel shearing machine which shears a plurality of bar steel simultaneously. CONSTITUTION: A sample sizing device of a bar steel shearing machine is arranged quite close to and on the downstream side of a bar steel shearing machine 3 which carries in a plurality of long bar steel 1 by a table 2 with groove and shears them simultaneously. It consists of a frame l4, a frame lift device 11, a plurality of groove stoppers 13 provided in the frame, and a plurality of groove stopper lift devices 12. The frame 4 consists of a main frame 4-1 and a subframe 4-2, and a subframe travel device 5 which can move the subframe in the direction of conveyance of a long bar steel is provided between the main frame and the subframe. The main frame is connected to the frame lift device, and the subframe is connected to the plurality of groove stopper lift devices 12. The frame and a selected groove stopper are lowered to enable sample sizing of arbitrary length of a bar steel of the selected groove only.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sample sizing device for a steel bar shearing machine with a plurality of simultaneous shears, and at the same time as the order length,
The sample can be taken only from the selected groove and the sample length can be set, thereby improving the production efficiency and the yield.

[0002]

2. Description of the Related Art A steel bar shearing machine is installed for the purpose of transporting a plurality of long steel bars simultaneously on a grooved table and using a stopper for measuring the ordered length to collect the ordered steel bar. Has been done. FIG. 4 illustrates the prior art technique of sampling with a steel bar shear. Long bar steel 1
Is conveyed in the direction of the arrow simultaneously on the grooved table 2,
The grooved table 2 is stopped at a predetermined position, the long steel bar 1 is sheared by the steel bar shearing machine 3, and a sample is taken.

[0003]

However, the above method has problems in terms of yield and production efficiency. I mean I usually only need one sample,
Since a plurality of the long steel bars 1 on the grooved table 2 are conveyed at the same time, in the above conventional technique, samples were taken from all of the plurality of steel bars. Therefore, it has been a factor of lowering the yield.

Further, since there is no particular sizing for the long steel bar 1, the sample length is set by stopping the grooved table 2 when the tip of the long steel bar 1 during conveyance passes a predetermined sensor.
I was trying to match my goal length. However, since the long steel bar 1 became shorter as the product was sheared, the stop position changed and the sample length was not always constant. Therefore, a work of manually inching the grooved table 2 to adjust it to a target length occurs, which causes a decrease in production efficiency. Further, as a method of shearing a strip material, there is an example shown in Japanese Patent Publication No. 58-30096, but this example does not relate to the sizing of a sample.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides an apparatus capable of efficiently collecting a sample of an arbitrary length with a high yield, and its gist is as follows. (1) Arranged in the immediate vicinity of the steel bar shearing machine for carrying in and shearing a plurality of long steel bars simultaneously on a grooved table, and a frame,
It is composed of a frame elevating device, a plurality of groove-specific stoppers installed on the frame, and a plurality of groove-specific stopper elevating devices, and the frame is composed of a main frame and a subframe, and a subframe between the mainframe and the subframe. A subframe moving device that can move the frame in the conveying direction of long steel bars is provided, the main frame is connected to the frame lifting device and the subframes are connected to multiple groove-specific stopper lifting devices, and the frame and selected groove-specific stoppers are lowered. By doing so, the sample sizing device for a steel bar shearing machine is characterized in that it enables the sample sizing of any length of only the steel bar of the selected groove.

(2) On the upstream side of the steel bar shearing machine, there is provided a groove-specific lifter that operates only the groove for collecting a sample and lifts a long steel bar of the groove, and a long-length member that is not lifted by the groove-specific lifter. The steel bar is conveyed downstream by the grooved table, and the grooved lifter is moved upstream by approximately the sample length from when the tip of the long steel bar reaches the ordered length sized stopper arranged downstream of the sample sized grooved stopper. The sample sizing device for a steel bar shearing machine according to (1), which is provided with a sizing control device that descends and makes all of the long steel bars reach the two types of sizing stoppers almost simultaneously.

[0007]

Embodiments of the present invention will be described in detail below with reference to FIG. The long steel bar 1 is conveyed from left to right as indicated by the arrow. A sample sizing device including a frame 4, a frame elevating device 11, a plurality of groove-specific stoppers 13, and a plurality of groove-specific stopper elevating devices 12 is installed downstream of the steel bar shearing machine 3.

The frame lifting device 11 is a lifting cylinder 1.
4 and a link mechanism 15, and an elevating cylinder 14
The rotation fulcrum of the link mechanism 15 is fixed to the steel bar shearing machine 3 via a mount. That is, by extending the frame elevating device 11, the frame 4 connected to the frame elevating device 11 descends and moves to the left, and enters the space between the upper part (moving blade side) and the lower part (fixed blade side) of the steel bar shearing machine 3. .

Next, when only the groove-specific stopper elevating / lowering device 12 of the groove for collecting the sample is contracted, the groove-specific stopper 13 connected thereto is lowered. When the ordered length sizing stopper is lowered and a plurality of long steel bars 1 are conveyed and sheared, the sample and the ordered length are simultaneously sheared.

Further, the frame 4 is a main frame 4-1.
And a subframe 4-2, and a mainframe 4-
1 and the sub-frame 4-2, a sub-frame moving device 5 capable of moving the sub-frame 4-2 in the conveying direction of the long steel bar 1 is provided, and the main frame 4-1 is connected to the frame elevating device 1
First, the sub-frame 4-2 is connected to each of the plurality of groove-specific stopper elevating / lowering devices 12.

The sub-frame moving device 5 includes an electric motor 6, a screw rod 9 fitted to the sub-frame 4-2, a bearing 10 for rotatably supporting the screw rod 9, a sprocket 7 installed at the shaft ends of the electric motor 6 and the screw rod 9, The chain 8 connects the two sprockets 7.

When the electric motor 6 is started, the screw rod 9 rotates via the chain 8 and the sub-frame 4-2 fitted thereto moves in the conveying direction of the long steel bar 1, so that the groove-specific stopper 13 also. It moves and the sample length can be set.

The sampling method according to the present invention will be described with reference to FIG. In this example, the number of simultaneous shearing units is 8, and samples are taken only from the third line from the top of FIG. Therefore, only the third groove-specific stopper 13 from the top descends, the order length sizing stopper 16 also descends at the same time, and eight long steel bars 1 are carried in. The seven long steel bars 1 are placed on the order length sizing stopper 16. Once reached, shearing will simultaneously shear one sample and seven ordered lengths.

As a result, the problem of yield reduction that occurs in the prior art is solved, and the production efficiency can be improved by shearing the ordered length at the same time as the sample. Further, since the inching of the grooved table, which is carried out by the conventional technique, is not necessary, the production efficiency is improved. Further, when the sample length is not always constant, the position of the groove-specific stopper 13 is moved according to the sample length, so that any sample length can be dealt with.

When all the long steel bars are simultaneously conveyed to simultaneously shear the sample and the ordered length as described with reference to FIG. 2, the long steel bars in the groove for collecting the sample immediately reach the groove-specific stoppers. On the other hand, it takes L-l time for the long bar steel of the groove for taking the ordered length to reach the stopper for the ordered length sizing, so the time difference causes the empty bar of the grooved table Transport flaws may occur due to rotation.

Another example of the present invention is to prevent the conveyance flaw, which will be described in detail with reference to FIG. Groove lifter 17 that moves up and down by groove upstream of the steel bar shearing machine 3, groove-specific stopper 13 and sample length sizing stopper 16 of the sample sizing device. The arrival control device 19 is installed.

The sizing control device 19 first raises the groove-specific lifter 17 of the groove for sampling and lifts the long bar steel 1, and then drives the grooved table 2 to obtain the ordered length long bar steel 1. Carry only downstream. When the tip of the long steel bar 1 being conveyed is detected by the detector 18 installed slightly upstream of the ordered length sizing stopper 16, the long bar steel 1 for descending the groove-specific lifter 17 to take a sample is also conveyed.

Since the distance between the detector 18 and the ordered length sizing stopper 16 is approximately equal to the sample length, soon all the long steel bars 1 arrive at the two types of sizing devices at substantially the same time. If the grooved table 2 is stopped at that time, the sizing is completed without causing a conveyance flaw.

[0019]

EFFECTS OF THE INVENTION According to the present invention, the sample and the order length are sheared at the same time, and the problem of the yield reduction that occurred in the conventional technique is solved, and the production efficiency can be improved by shearing the order length at the same time as the sample. Becomes Further, since the inching of the grooved table, which is carried out by the conventional technique, is not necessary, the production efficiency is improved. Also, the sample length can be changed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of the present invention.

FIG. 2 is an explanatory view of a method of collecting a sample according to the present invention.

FIG. 3 is an explanatory diagram of another example of the present invention.

FIG. 4 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 1: Long steel bar 2: Grooved table 3: Steel bar shearing machine 4: Frame 4-1: Main frame 4-2: Subframe 5: Subframe moving device 6: Electric motor 7: Sprocket 8: Chain 9: Screw rod 10 : Bearing 11: Frame lifting device 12: Groove stoppers lifting device 13: Groove stoppers 14: Lifting cylinder 15: Link mechanism 16: Order length fixed length stopper 17: Groove lifter 18: Detector 19: Fixed length reaching control device

Claims (2)

[Claims] 1. A frame, a frame elevating device, and a plurality of groove-specific stoppers installed on the frame, which are arranged immediately downstream of a steel bar shearing machine for simultaneously carrying and shearing a plurality of long steel bars on a grooved table. The sub-frame moving device is composed of a plurality of stopper lifting / lowering devices for each groove, and the frame includes a main frame and a sub-frame, and the sub-frame can be moved between the main frame and the sub-frame in the conveying direction of the long steel bar. By connecting the main frame to the frame elevating device and the subframe to a plurality of groove-specific stopper elevating devices, and lowering the frame and the selected groove-specific stopper, a sample of only the bar steel of the selected groove can be obtained. A sample sizing device for a steel bar shearing machine, which is configured to enable sizing. 2. A groove-specific lifter which operates only a groove for sampling a sample and lifts a long steel bar of the groove is provided upstream of the steel bar shearing machine, and a long steel bar not lifted by the groove-specific lifter. Is conveyed downstream by a grooved table, and the groove-specific lifter is lowered approximately upstream of the sample length when the tip of the long steel bar reaches the ordered-length fixed-size stopper arranged downstream of the sample fixed-dimension groove-specific stopper. However, a sizing control device is provided to allow all of the long steel bars to reach the two types of sizing stoppers at substantially the same time.
Sample sizing device for the described steel bar shears.