JPS6059090B2 - Crop running shear device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cropping shearing device for performing top and bottom cropping and dividing shearing of strip materials such as rolled rods and wire rods during running at speeds exceeding 5 m/sec.

Generally, the top and bottom of rolled materials such as bars and wire rods that are continuously rolled by continuous rolling equipment have poor shape and dimensional tolerances, so they must be discarded as crops.

Generally, the crop length of this top is longer than that of the bottom. For this reason, during cropping, it is necessary to quickly guide the top, bottom, and bottom crops out of the rolling line to avoid problems with the subsequent strips that are being guided at high speed. Various processing devices have been proposed. In conventional processing equipment, the top and bottom crops are knocked down by a crop guide plate on the line, and the rolled strip is passed above.

However, because the strip speed is high (over 57 TL/sec), there are frequent problems with electrical signals and air cylinders used to move the guide plate up and down. In addition, in a recent method, a rotary jump-off flap that rotates in synchronization with the running shear is placed behind the running shear, and the crop sheared by the running shear is rotated and jumped out. There is equipment that uses flaps to change the running direction and change the route of the rolled strip and crop. However, in this case, bottom shear cannot be achieved only by top crop shear. In addition, when a problem such as a misroll occurs, there is a big problem in that the entire crop cannot be lowered, and there is also the problem of high investment in connection equipment for synchronization. The present invention was made in order to solve the problems in the above-mentioned conventional examples. In a shearing machine that shears during running at a speed exceeding
The first upper blade 2 is placed on the chopping cut A, the second upper blade 3 is placed on the chopping cut A, and the third upper blade 1 is placed on the cutting oil in the rotational direction on the same rotation axis of the upper blade. 1, second, and third upper blade attachment arms 8, 9, and 7 in a removable manner, and a top striking portion J5 is provided on the rear surface of the first upper blade attachment arm 8 of the first upper blade 2 on the B line. A first crop projecting portion 5'' is provided on the A line, and a second crop projecting portion 6 is provided on the rear surface of the second upper blade mounting arm 9 of the second upper blade 3 directly above the line A. Further, on the rear surface of the third upper blade attachment arm 7- of the third upper blade 1, a third crop projecting portion 4 is provided directly above the line A, and on the other hand, the third crop projecting portion 4 is provided on the same rotation axis of the lower rotary blade. 1, a first lower blade 11 facing the upper blade 2, a second lower blade 12 facing the second upper blade 3, and a third lower blade 10 facing the third upper blade 1, respectively. The second and third lower blade attachment arms 15, 16, and 14 are removably provided, and a strip jumping portion 13 is provided on the rear surface of the third lower blade attachment arm 14 directly above the line B. , and further the upper blade 2
, 3, 1 and the lower blades 11, 12, 10 are provided to sandwich the lines A, B, and are configured to switch between the conveyance path of the crop portion and the travel path of the cropped strip material. A crop running shearing device is provided.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the crop running shearing device according to the present invention will be described in detail below with reference to the illustrated embodiment.

As shown in FIG. 1, a third upper blade 1, a first upper blade 2, a second upper blade 3, a third lower blade 10, a first lower blade 11. The second lower blade 12 is connected to the third upper blade attachment arm 7, the first upper blade attachment arm 8, the second upper blade attachment arm 9, the third lower blade attachment arm 14, the first lower blade attachment arm 15, and the second lower blade supported by the mounting arms 16, respectively;
Each upper and lower blade mounting arm has the same axis of the rotating blade 17 and 18, respectively.
The rods are pivotally supported by the rods, and are arranged in a pair of upper and lower sides across the traveling direction of the strip material C such as a bar or wire rod.

The structure of the rotary blade is a rotating circle R1 drawn by the cutting edges of the third upper blade 1, the first upper blade 2, and the second upper blade 3, the third lower blade 10, the first lower blade 11,
The rotation circle R2 drawn by the cutting edge of the second lower blade 12 is the bottom crop of the strip C and the chopping cut strip advancement line A.
and a third upper blade 1, a first upper blade 2, a second upper blade 3, and a third lower blade, which are in contact with each other on the top crop cut strip advancement line B, and are opposed at the contact point. 10, it has a well-known configuration in which the first lower blade 11 and the second lower blade 12 shear the strip material C while running. Among the above-mentioned blades, the third lower blade 1 and the third lower blade 10 are blades for top crop cutting;
The upper blade 2 and the first lower blade 11 and the second upper blade 3 and the second lower blade 12 are blades for bottom crop cuts and chopping cuts. It has a width of approximately 300 mm, and is arranged on the side of the strip advancing line A. Incidentally, the portions of the upper and lower blades 1 and 10 on the side of the strip material advancement line A can also be bottom-cropped. As shown in FIG. 1, the rear surfaces of the third upper blade mounting arm 7, first upper blade mounting arm 8, second upper blade mounting arm 9, and third lower blade mounting arm 14 of the above-mentioned running shearing machine are circular. a first having an arcuate outer periphery;
Second and third crop projecting parts 5, 6, 4 and a strip jumping part 13 are provided.

Rotation circle R drawn by the arcuate outer periphery of the first, second, and third crop protruding portions 5'', 6, and 4 provided on the upper blade mounting arm
3 and the arcuate outer periphery of the flip-up portion 13 provided on the lower blade attachment arm are larger than the rotation circles R1 and R2 of the upper and lower blade tips, respectively. Therefore, the third crop projecting portion 4 provided on the third upper blade mounting arm 7 and the springing portion 13 provided on the third lower blade mounting arm 14 are connected to the upper and lower blades 1 and 10, respectively. A third crop projecting portion 4 is formed on the advancing line A side so as not to touch each other.
A strip material jumping part 13 is provided on the advancing line B side. Also,
A switch vibe 1 that switches the progression lines A and B, respectively.
9 are provided along the advancing line.

The apparatus of the present invention is constructed as described above, and its operating procedure will now be described with reference to FIGS. 2 to 4 for the case where top crop processing is performed.

First, the strip material C advances, and the running shearer receives an electric signal and prepares to start operating by using a timer or the like.

That is, the switch vibrator 19 is placed at the position of the advancing line B, and the rotary blade of the running shear is positioned as shown in FIG. Next, when the tip of the strip comes in, the top beating part 5 provided on the rear surface of the first upper blade attachment arm 8 rotates and hits the head of the rolled strip C, so that the tip of the strip C turns downward. At the moment when the third upper blade 1 and the third lower blade 10 shear the strip C at the contact point 7 shown in FIG. Strip jumping part 1
3 hops the strip C onto the progress line B and moves it to the guide plate 20
I will guide you to the top.

The top crop 21 falls below the guide plate 20 and is carried out as a crop. Next, the bottom crop processing will be explained with reference to FIGS. 5 to 7.

First, it is confirmed by an electric signal that the tail end of the strip C has passed a certain point, and at the same time, the running shearer prepares to start operating by a timer or the like.

That is, the switch vibrator 19 is placed at the position of the advancing line A, and the shearing blade is positioned as shown in FIG. Next, when the shearing device at the tail end of the strip comes close to the contact point 4 of the shearing blade, the first upper blade 2 and the first lower blade 11 rotate and shear the strip C at the contact point 4. At the same time, the first crop projecting portion 5'' installed on the rear surface of the first upper blade attachment arm 8 knocks the crop downward on the guide plate 20 of the advancing line A (7), and carries it out as the bottom crop 22.
Note that the chopping cut is performed in the same manner as the bottom crop cut.

Chopping cut is also generally called misroll processing. The rolling speed of the bar and wire rod mill is 5 to 87 TL1S at the section where the crop shear is installed, but the speed of the post-process of this equipment is 30 to 60 Tr1. IS means that when the wire rod hits the entrance guide, the misrolled material is cut to a size that is easy to handle because of the high speed. Generally 5
00-800 tiles/Trl. / book. If the grain size is too long, it will cause problems during processing and transportation. Therefore, as in the present application, three chopping cuts are provided on the same rotating shaft. Without this chopping cut, misrolls would be scattered if they were caught in the wrong position, and it would take about an hour to process them, temporarily interrupting the rolling operation, and the process would require a lot of man-hours, resulting in considerable damage. In order to solve these problems, the present application provides the above-mentioned top crop cut and bottom crop cut on the same rotating shaft, and furthermore, the above-mentioned chopping cut (
(continuous cut). Equipped with this chopping cut, you only need to inspect the rolling line, which is approximately 3.
It can be dealt with in about a minute. Next, I will explain the cutting procedure.

When the wire hits the entrance guide, an electric signal is sent to the running shearing machine using a timer or the like to prepare for operation.

That is, the switch vibrator 19 is placed at the position of the advancing line A, and the shearing blade is positioned as shown in FIG.

Next, when the strip C comes to an arbitrary position near the contact point 7 of the shearing blade, the first upper blade 2 and the first lower blade 11 operate to rotate and shear the strip C at the contact point 4, At the same time, the top striking portion 5' installed on the rear surface of the first upper blade attachment arm 8 strikes the crop downwardly on the guide plate 20 in the advancing line A to form a crop 22.

) Next, in the same way, the third upper blade 1 and the third lower blade 10 shear, and at the same time the third upper blade installed on the rear surface of the third upper blade mounting arm 7 is
The crop projecting portion 4 hits the guide plate 20 downwardly on the crop progression line A, and then the second upper blade 3 and the second lower blade 12
At the same time, the second crop projecting portion 6 provided on the rear surface of the second upper blade attachment arm 9 is struck downwardly on the guide plate 20 of the crop advancement line A.

Therefore, the number of cuts of the misrolled material made in one rotation is three. These operations are performed continuously until there is no misrolled material left, and the material is continuously cut into n pieces/time of crop material, which are collected and processed.

As is clear from the above operating procedure, for example, the first upper blade 2 and the third
The misroll material force is reduced by the time required for movement between the upper blades 1, that is, 500 to 8007 nIml.

At the same time, the first crop protruding portion 5'' is struck by the crop protruding portion 4 and the second crop protruding portion 6, and the guide plate 20 is knocked downward.If this striking device was not present, the crop would not move downward. It interferes with the next cutting, and the function of the cropping process cannot be achieved.As mentioned above, the protruding parts 5'', 4, and 6 are very important in the misroll process.

Since the present invention has the above-mentioned configuration, it not only solves all the problems of the conventional devices mentioned above, but also allows top and bottom crops that have been sheared during running to be cropped at the same time. By appropriately changing the arm angle, the crop length can be shortened, thereby improving the product yield.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the present invention, and FIGS. 2 to 4 are
FIGS. 5 to 7 are explanatory diagrams showing the top crop processing process, and FIGS. 5 to 7 are explanatory diagrams showing the bottom crop processing process.

Claims (1)

[Claims] 1. A bar running in one direction by a pair of upper and lower rotating blades,
In a shearing machine that shears strip materials such as wire rods while running at a speed exceeding 5 m/sec, the advancing line of the strip material is freely displaced from the fixed top crop cut B position to the bottom and chopping cut A position. A mechanism is provided, and the first upper blade 2 is placed on the chopping cut A, the second upper blade 3 is placed on the chopping cut A, and the third upper blade 1 is placed on the chopping cut AB in the rotational direction on the same rotation axis of the upper blade. each in order
, a top striking portion 5 is provided on the rear surface of the first upper blade mounting arm 8 of the first upper blade 2 and is removably attached to the second and third upper blade mounting arms 8, 9, and 7 on the B line and on the first upper blade mounting arm 8. Crop protrusion part 5
' is provided on line A, and a second crop projecting portion 6 is provided on the rear surface of the second upper blade mounting arm 9 of the second upper blade 3 directly above line A. A third crop projecting portion 4 is provided on the rear surface of the third upper blade mounting arm 7 directly above the line A, while the third crop projecting portion 4 is provided on the same rotation axis of the lower rotary blade as the third crop projecting portion 4.
A first lower blade 11 facing the upper blade 2 and a second lower blade 12 facing the second upper blade 3 are provided, and the third lower blade 10 facing the third upper blade 1 is provided with a first, a second, and a third lower blade 10 facing the third upper blade 1, respectively. Third lower blade mounting arm 15
, 16 and 14, and on the rear surface of the third lower blade attachment arm 14, a strip material flip-up portion 13 is provided directly above the line B, sandwiching the line B, and furthermore, the upper blade 2 , 3, 1 and the lower blades 11, 12, and 10 are provided to sandwich the lines A and B, and are configured to switch between the conveyance path of the crop section and the travel path of the cropped strip material. Crop running shear device.