JPH01167019A - Hexagonal shape forming bundling method and equipment for pipe - Google Patents

Abstract

PURPOSE:To make forming bundling without adding strain to work possible and make continuous processing possible, by arranging integrally a fixed tilting forming frame, which has a downward tilt of approximate 30 deg. toward the front side of the lifter, on the upper surface of the rear portion of a lifter; and at the same time, arranging a vertical forming frame to be erected at the front portion of the lifter, which is movable and adjustable back and forth to the fixed tilting forming frame. CONSTITUTION:By giving a downward tilt of approximate 30 deg. from the carry end of a skid rail 1, N pieces of pipes are made to roll in which their own weight; N pieces of work (a) are loaded on a fixed tilting forming frame 12 in a row. A lifter 6 is made to descend by a dimension which is equivalent to the diameter of the work (a); at the same time, a vertical forming frame 13 is made to retreat backward by a predetermined dimension; then the work with one extra piece (N+1) are supplied from the skid rail 1 on a work (a) at the lowest layer which have been placed already; since the already placed work a row is tilting downward by approximate 30 deg. to the vertical forming frame 13, (N+1) pieces of work roll down on the tilted surface to form a second stage of work a row. In a same way, every time when the lifter 6 is made to descend, third and fourth work (a) rows are supplied; and pipes re bundled in an approximately hexagonal shape, being controlled by the vertical forming frame 13.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention focuses on forming a plurality of long materials (hereinafter referred to as workpieces) with circular cross sections, such as steel pipes and long round bars, into a substantially hexagonal shape. This invention relates to a focusing method and device.

(Conventional technology and its problems) Traditionally, in the process of processing steel pipes and other workpieces, when a large number of workpieces are brought together, they are formed into the most stable regular hexagonal shape. The workpiece is transferred onto a skid rail with a steep slope, and a forming device is installed below the conveyance end of the skid rail.

This hexagonal forming device is configured to form a large number of workpieces into hexagonal shapes by using magnets to move the workpieces, or by gripping and moving the workpieces with an arm and forcibly transferring them from a skid rail. It was not a device that could be transported under its own weight or that could form hexagons.

In this way, the conventional method was to form a regular hexagon, and the focusing method used unnatural force such as power, which not only caused problems in terms of workability but also in terms of cost as it required complicated equipment for transportation. There was a point.

(Purpose) The present invention was made in view of the drawbacks of the conventional examples, and
The purpose of this is to utilize the natural transfer of gravity and simply control the forming frame to form and converge not only regular hexagonal shapes but also deformed hexagonal shapes without straining the workpiece. Round materials such as steel pipes and round bars can be processed continuously. The purpose of the present invention is to provide a hexagonal forming focusing method and apparatus.

(Means for Solving the Problems) In order to achieve the above object, in the first invention: (1) N pipe materials are transferred by their own weight at a downward slope of about 30 degrees from the conveyance end of the skid rail.

(2) Arrange these tubes (a) in a row to form the bottom layer of the hexagonal shaped bundle.

(2) Next, after lowering the bottom layer by one pitch, (N+1) tubes (a) are arranged on top of the bottom layer (a).

(2) Repeat this operation M times to stack (M) layers of tube material (a) to form the lower half of the hexagonal shaped bundle.

After lowering the lower half by 1 pitch, the (M+1)th layer (
N+M-1) tubes (a) are arranged on the lower half.

■Next, after lowering the pitch by one pitch, the (N+M
-2) Arrange the tubes (a) on the (M+1) layer.

(2) Repeat this operation three times to form a hexagonal shaped bundle below the conveyance end of the skid rail.

In the second invention, the following technical means are adopted: (1) A lifter is disposed below one side of the conveyance end of the skid rail (1) so as to be able to rise and fall freely.

(2) A fixed inclined molding frame (2) having a downward slope of about 30 degrees toward the front is integrally provided on the rear upper surface of the lid (6).

(2) At the same time, a vertical molding frame 01, which can be moved back and forth with respect to the fixed inclined molding frame side, is erected at the front part of the lifter (6).

■At the bottom of this vertical forming frame Qm, a movable inclined forming side frame αa is installed between the vertical forming frame Q1 and the fixed inclined forming frame (2) at an opening angle of about 120 degrees with respect to the fixed inclined forming frame α. Arrange.

(2) The movable inclined forming side frame α ship is arranged so as to be movable and adjustable in the parallel direction along the inclined surface of the fixed inclined forming frame (2).

; In the third invention, the upper part is formed as a vertical guide part (5a) below one side of the conveyance end of the skid rail (1), and the lower end part is directed forward. Approximately 120 mm with respect to the vertical guide portion (5a)
A fixed guide member (5) formed on an inclined guide part (5b) is provided which is inclined downward at an angle of .degree.

(2) The rear end of the lifter (6) is arranged to be movable up and down so as to move along the fixed guide member (5).

■At the same time, the front end of the lifter (6) is held so that it can rise and fall freely, and when the rear end of the lifter (6) enters the inclined guide part (5), the lowering of the front end of the lifter (6) is stopped, and the lifter (6) ) about 30 mm toward the front on the upper rear surface of the
The fixed inclined molding frame (2) having a downward slope of 100 degrees is arranged so as to be horizontal.

(2) At the front of the lid (6), a vertical molding frame a1 that can be moved back and forth with respect to the fixed inclined molding frame (2) is erected.

■At the bottom of this vertical forming frame α, the movable inclined forming side is opened at an opening angle of about 120 degrees with respect to the fixed inclined forming frame (2) between the vertical forming frame α and the fixed inclined forming frame (2). A frame αa is arranged.

(2) The movable inclined forming side frame α ship is arranged so as to be movable and adjustable in the parallel direction along the inclined surface on the side of the fixed inclined forming frame.

; is adopted as a technical means.

(Function) Lift the lifter (6) and fix its fixed inclined forming frame (2).
Align it with the conveyance end of the skid rail (1), and in this state move a predetermined number (N) of workpieces from the skid rail (11) (
When the workpieces a) are fed in parallel, the workpieces (a) enter the inclined surface of the fixed inclined forming frame, and the frontmost workpiece (a) comes into contact with the lower end of the movable inclined forming side frame α, and these Eight workpieces (Jl) are placed in parallel on a fixed inclined forming frame (goods).

Next, the lifter (6) is lowered by a dimension corresponding to the diameter of the workpiece (a), and the vertical forming frame (2) is retreated backward by a predetermined dimension.
When the number of workpieces (a) (N+1) that are larger than the number of jobs is supplied from the skid rail (1) onto the lowest layer of workpieces (a) that have already been stored, the stored workpieces (a) row are placed in the vertical forming frame a hot water column. It slopes downward at an angle of approximately 30 degrees toward the side, so that the second
The workpieces (al(N+1)) of the layer move down the inclined surface due to gravity to form a second row of workpieces (a).

Similarly, each time the lifter (6) is lowered, the third and fourth rows of workpieces (a) are supplied and concentrated into a substantially hexagonal shape while being regulated by the vertical forming frame α hot water. After that, they are brought together and from this state the lifter (6) is moved from the vertical guide part (5a) to the inclined guide part (5b) of the fixed guide member (5).
), the lower end of the group of hexagonally formed workpieces (δ) is turned downward by the fixed inclined forming frame (2) and the movable inclined forming side frame (14). From this state, the fixed inclined forming frame (2) becomes horizontal, so that the lower side of the hexagonal shape becomes horizontal, and it can be transported to the next process either in the formed state or after being bundled. Of course, it is also possible to transport the hexagonal shape with the corners facing downward, without making the lower side horizontal.

(Example) To explain an example of the present invention with reference to the drawings, (1) is a skid rail that is gently sloped downward toward the end of conveyance;
At the end of the conveyance, a stopper (3) is provided which moves in and out of the workpiece transfer surface by the operation of the cylinder (2).

The skid rails (1) are arranged in multiple rows in the lateral direction.

(4) is a fixed underframe with a U-shaped cross section provided at the lower part of one side of the conveyance end of the skid rail (1), and its rear vertical frame (4)
b), the upper part of which is formed as a vertical guide part (5a), and the lower end part of which is inclined toward the front at an opening angle of about 150 degrees with respect to the vertical guide part (5a).
) is fixed to the fixed guide member (5).

(6) is arranged in the central space of the fixed frame (4) or is a lid, and a roller (7) pivotally connected to the rear end is loosely fitted into the fixed guide member (5) so as to be able to rise and fall freely. Along with this, roller chains (8) (8) are connected to both the front and rear ends.
These roller chains (8) (8) are attached to the fixed frame (4).
) Chain wheel (9) pivotally supported at the upper and lower ends of the front and rear vertical frames (4a) (4b) A hook is passed through each fixed chain wheel Ql)Qυ, and the lifter (6) is moved up and down along the fixed guide member (5) by the rotation of the deceleration motor a.

Furthermore, a fixed inclined forming frame (
2) is integrally provided, and a vertical molding frame α that can be adjusted forward and backward relative to this fixed inclined molding frame side is erected at the front part, and a fixed vertical molding frame α is provided at the bottom of this vertical molding frame α. The upper circumferential surface (1) of the inclined forming frame (2) is
4a) is expanded at an opening angle of approximately 120 degrees.
There is a provision for this. This movable molded side frame α ship is composed of rollers in this embodiment.

α is the inclined forming roller Q at the bottom of the vertical forming frame a1.
4) is a floating plate arranged in parallel on the side, and its upper edge is provided with a plurality of circular arc-shaped recesses αe in a continuous wave shape to receive the workpiece (aluminum), and the inner bottom of the recess αe has a movable slope. It is disposed so as to be substantially flush with the upper peripheral surface of the forming frame α0.

This floating plate α9 is replaceable with one having a recess αQ of a size corresponding to the diameter of the workpiece (al).

These movable inclined forming frame α ship and floating plate α- move parallel to the forming surface (12a) of the fixed inclined forming frame @ along the inclined member (24) fixed to the lower surface of the lifter (6). This movement adjustment mechanism and the back-and-forth movement adjustment mechanism of the vertical forming frame Q31 are arranged so that they can be adjusted, and a screw rod αηα rotated by a motor (not shown) is connected to an inclined member (24) and a lifter (6). ) are each rotatably supported by a shaft, and the lower end of each screw rod αηα is threaded through the threaded rod αηα.

Ql is a buffer lever pivoted to the upper end of the front vertical frame (4a) of the fixed frame (4) so that it can rotate freely back and forth, and is rotated by a cylinder (to), and its lower end is attached to the skin trail TI).
The workpiece (a) is placed at the receiving position from the end of the transport.

(21) is a bridging lever pivotally attached to the conveying end of the skid rail (1) so that it can rotate freely in the left and right direction.
25), it can be rotated forward from the conveyance end of the skid rail (1) so as to be freely visible and retractable.

(26) is the inclined guide portion (
5b) is fixed to the lower end of the lower end of the lid (6).
When the two come into contact with each other, the cover (6) tilts downward toward the rear at an angle of approximately 30 degrees, and the fixed inclined molding frame (2) becomes horizontal. Of course, the inclined guide part (5b) may not be provided, and the lifter (6) may be allowed to descend as it is, and in that case, the hexagonal shaped corners may be tied and transported with the hexagonal corners facing downward. It is. If the inclined guide part (5b) is present, it is placed at a position slightly higher than the upper surface of the fixed inclined forming frame (2) at the point where the fixed inclined forming frame (2) is horizontal, and is carried out horizontally to one side of the fixed inclined forming frame (2). A drive roller (22) is disposed, and furthermore, a drive roller (22) is provided at the negative side rear part of the drive roller (22).
A discharge inclined roller (23) is provided which is inclined at an angle of about 120 degrees with respect to the conveyor.

(27) is a fixed vertical guide member that hangs down from the inner surface of the upper end of the rear vertical frame (4b) of the fixed frame (4), and its vertical surface is connected to the rear end surface of the fixed inclined forming frame (2), that is, the forming surface ( 12a
).

To describe the operation of the embodiment configured in this way, first, before ejecting the workpiece (a) such as a long round bar or pipe body from the skid rail (11), the vertical guide portion of the fixed guide member (5) (5a) to raise the lifter (6),
The rear end of the fixed inclined forming frame (2) is connected to the skid rail (1).
), and the bridging lever (21) is recessed to one side from the conveyance end of the skid rail (1).

In this state, when the skid rail (1) is transferred by knocking down the stopper (3), a predetermined number of works (a) (for example, N pieces, 4 pieces in the figure) are sent to the stopper (3) side. The workpiece (a) is transferred from the conveyance end of the skid rail (1) onto the fixed inclined forming frame (2), and the preceding workpiece (a) comes into contact with the inclined forming roller α0 and stops, and at the same time engages in the recess αe of the floating plate α. Despite the pressure of the subsequent workpieces (a), the N workpieces (a) of the first stage are prevented from moving upward along the inclined forming roller Q4), and the first stage of N works ( a) are parallel. Note that when the workpiece (Al) is transferred from the conveyance end of the skid rail (1), the preceding workpiece (Al) is caught by the buffer lever α, and the workpiece (Al) is moved while rotating the buffer lever α forward. a) is gradually transferred to the vertical forming frame α1 side.In this case, by slightly shifting the stop position of the adjacent buffer lever α field, the supports of the pipe material (a) will collide in order when stopping. As a result, the generation of impact noise is suppressed.The same applies to the following workpiece feeding.

Next, the deceleration motor α0 is activated to lower the lifter (6) by a height corresponding to the diameter of the workpiece (a), and the vertical forming frame (2) is moved forward by a dimension slightly smaller than the diameter of the workpiece (a). After moving, when a plurality of works (a) (that is, (N+1) works, 5 in the figure) are fed to the first stage work (row 81) in the same manner as described above, these works (a) are tilted. The preceding workpiece (a), while being transferred by its own weight on the first row of workpieces, comes into contact with the 0th floor of the vertical forming frame and moves into the next recess of the floating plate α4 (in a state where it is engaged with l [9). A second row of workpieces is formed.

In the same way, the next work row (i.e. (N+2) pieces, 6 in the figure)
A third row of workpieces is formed by supplying the workpieces (books) from the skid rail (1). Repeat this operation M times, (M)
A layer of tubing fa) is placed to form the lower half of the hexagonal shaped bundle. When the maximum diameter of the hexagonal shape is formed in this work row, next move the bridging lever (21) to the skid rail (
At the same time, the lifter (6) is lowered by the diameter of the workpiece (a) without moving the vertical forming frame α to protrude from the conveying end of step 1), and a plurality of pieces (i.e. (N+M-1) pieces, 5 pieces in the figure) are made. ) workpiece (al) is transferred through the bridging lever (21), and the preceding workpiece (a) is received by the buffer lever (11) and brought into contact with the vertical forming frame α bottle to form the (M+i)th row of workpieces. Then, after lowering it by one pitch (N+
M-2) Arrange the tubes (a) on the (M+ 1) layer,
This operation is repeated eight times to form a hexagonal shaped bundle below the conveyance end of the skid rail. Here, the correct number of tube materials [a] may not be supplied to the top layer of tube materials +8), but even in that case, the insufficient number of tube materials (a) may be supplied to the second layer of tube materials from the top (81 group). Place and focus.

In this state, both lower inclined sides of the hexagonal shape are on the fixed inclined forming frame @ and the movable inclined forming side frame α, and both vertically opposing sides are formed by the fixed vertical guide member (27) and the vertical forming frame α. has been done.

After that, when the lifter (6) is further lowered by the deceleration motor α and the rear end side of the lifter (6) is moved down along the inclined guide portion (5b) of the fixed guide member (5),
The lifter (6) swings from the horizontal state and tilts backward at an angle of approximately 30 degrees, so that the molding surface (12a) of the fixed inclined molding frame (2) becomes a horizontal surface as shown in FIG. The lower side of the hexagonal molding work group becomes horizontal. At the same time, the horizontal side is placed on the unloading horizontal drive roller (22), and the inclined side adjacent to the horizontal side is placed on the unloading inclined roller (22).
23) is accepted.

Of course, the inclined guide portion (5b) may not be provided, the formed bundle may be suspended with the bottom corner facing downward, and the formed bundle may be transported while being bundled or may be transported as is without being bundled.

After that, the unloading horizontal drive roller (22) is driven to supply the material to the next process.

In addition, the amount of descent of the lifter (6), the amount of back and forth movement of the inclined forming roller α and the vertical forming frame 01 may be determined depending on the diameter of the workpiece (al), the number of hexagonal forming workpieces used, the size and shape of the hexagonal shape, etc. Of course, adjustments can be made.

Note that the buffer lever Q9) is not limited to the embodiment shown in the figure, and a pusher that directly uses a cylinder may be used.

(Effects of the Invention) As described above, according to the first invention, N pipe materials are transferred by their own weight from the conveying end of the skid rail with a downward slope of about 30 degrees, and these pipe materials are arranged in a row to form a hexagonal shape. After lowering the bottom layer by one pitch,
N+1) pieces of tube material are arranged on the bottom layer tube material, this operation is repeated M times, the (M) layer of tube material is placed to form the lower half of the hexagonal shaped bundle, and then the lower half After lowering by one pitch, (N+M-1) pieces of pipe material are arranged on the lower half, then after lowering by one pitch, (N+M-2) pieces of pipe material are arranged on top of the lower half (N+1
) and repeat this operation 8 times to form a hexagonal shaped bundle below the conveyance end of the skid rail, so it can be naturally transferred by gravity alone.
It does not require any work transfer equipment as in the past, and the equipment cost is extremely low.Moreover, even if there is an excess or deficiency in the number of tubes that do not form a regular hexagon, it can be easily focused into a regular hexagon. It has the advantage of being able to

Further, in the second invention, a lifter is disposed below one side of the conveyance end of the skid rail so as to be able to rise and fall freely, and a fixed slope having a downward slope of about 30 degrees toward the front is provided on the rear upper surface of the lifter. A forming frame is integrally provided, and a vertical forming frame that can be moved back and forth with respect to the fixed inclined forming frame is erected in front of the lifter, and the vertical forming frame and the fixed inclined forming frame are attached at the bottom of the vertical forming frame. and about 1 for the fixed inclined forming frame.
The movable inclined forming side frame is arranged at an opening angle of 20 degrees, and the movable inclined forming side frame is arranged so as to be movable and adjustable in the parallel direction along the inclined surface of the fixed inclined forming frame. Since the lifter is arranged so that it can be moved in a direction parallel to the inclined surface of the fixed inclined forming frame, the lifter is lowered sequentially along the vertical guide part of the fixed guide member by the diameter of the workpiece such as a steel pipe, and is moved to a predetermined position from the skid rail. By feeding the pieces onto the lifter, the fixed inclined forming frame, the vertical forming frame, and the movable inclined forming frame can be assembled into a hexagonal shape accurately or even if there is excess or deficiency, and By setting the front and rear positions of the vertical forming frame and the inclined forming roller according to the diameter of the workpieces and the number of pieces to be supplied, it is possible to form hexagonal formed bodies of large and small diameters.

Furthermore, in the third invention, the upper part is formed as a vertical guide part below one side of the conveyance end of the skid rail, and the lower end part faces forward at an angle of about 120 degrees with respect to the vertical guide part. A fixed guide member is provided on an inclined guide section that slopes downward at a lower end, and the rear end of the lifter is arranged to be movable up and down so as to move along the fixed guide member, and the front end of the lifter is held so as to be movable up and down. When the rear end of the lifter enters the inclined guide part, the lowering of the front end of the lifter is stopped, and a fixed inclined molding frame having a downward slope of about 30 degrees toward the front is provided on the rear upper surface of the lifter. At the same time, a vertical molding frame which can be moved back and forth with respect to the fixed inclined molding frame is erected at the front part of the lifter, and the vertical forming frame and the fixed inclined forming frame are arranged at the lower part of the vertical forming frame. Approximately 12 mm between the molding frame and the fixed inclined molding frame
The movable inclined forming side frame is arranged at an opening angle of 0 degrees, and the movable inclined forming side frame is arranged so as to be movable and adjustable in the parallel direction along the inclined surface of the fixed inclined forming frame. When the inclined guide part is lowered, the movable inclined forming frame can be tilted to a horizontal state, and therefore the lower side of the hexagonal formed body in which the work group is gathered becomes horizontal, and it is placed on the conveyance roller in that state. Therefore, they can be bundled as they are and transported to the next process, making it possible to serialize work processes and improve work efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a simplified side view thereof, FIG. 2 is a plan view, FIG. 3 is a simplified side view after hexagonal forming and convergence, and FIG. 4 is a side view of the delivery roller section. It is a diagram. (a)...Work, (1)...Skid rail, (2)...Cylinder,
(3)...Stopper, (4)...Fixed frame, (4a)...Front vertical frame, (4b)...
Rear vertical frame, (5a)...Vertical guide part, (5b)
... inclined guide part, (5) ... fixed guide member,
(6)...lifter, (7)...rear end roller,
(8)...Roller chain, (9)...Chain wheel, a...Deceleration motor, Ql)...
Chain wheel, (2)...Fixed inclined forming frame, α
G... Vertical forming frame, (12a)... Forming surface,
(14a)... Upper peripheral surface, α4... Movable inclined molded side frame Q9... Receiving plate, Ol... Arc-shaped recess, αηα Enoki... Threaded rod, OI...
・Buffer lever, (2)...Cylinder, (2
1)...Bridging lever, (22)...Horizontal drive roller for carrying out, (23)...Slanted carrying roller (24)...
Inclined member, (25)...Cylinder, (26
)...Descent regulating piece, (27)...Fixed vertical guide member, Patent applicant Hankyu Zoki 4 Co., Ltd.

Claims (3)

[Claims] (1) From the conveyance end of the skid rail, N pipe materials are transferred under their own weight at a downward slope of about 30 degrees, and these pipe materials are arranged in a row to form the bottom layer of the hexagonal shaped bundle, and then the bottom layer is After lowering by one pitch, (N+1) tubes are arranged on the bottom layer of tubes, this operation is repeated M times, (M+N) layers of tubes are stacked under the hexagonal shaped bundle. After forming the half part and then lowering the lower half by one pitch, (M+1
) layers of (N+M-1) pipe materials are arranged on the lower half,
Next, after lowering the pitch by one pitch, the (M+2)th layer (N+M-
2) A hexagonal pipe material characterized by arranging the pipe materials in (M+1) layers and repeating this operation S times to form a hexagonal shaped bundle below the conveyance end of the skid rail. Different molding focusing methods. (2) A lifter is disposed below one side of the conveyance end of the skid rail so as to be able to rise and fall freely, and a fixed inclined forming frame having a downward slope of about 30 degrees toward the front is integrally provided on the rear upper surface of the lifter. A vertical molding frame that can be moved back and forth with respect to the fixed inclined molding frame is erected at the front part of the lifter, and the fixed inclined forming frame is disposed between the vertical forming frame and the fixed inclined forming frame at the lower part of the vertical forming frame. A movable inclined forming side frame is arranged at an opening angle of about 120 degrees with respect to the forming frame, and the movable inclined forming side frame is arranged so as to be movable and adjustable in a parallel direction along the inclined surface of the fixed inclined forming frame. A hexagonal shape convergence device for pipe material, which is characterized by: (3) The upper part is formed as a vertical guide part below one side of the conveyance end of the skid rail, and the lower end part is inclined downward at an angle of about 120 degrees with respect to the vertical guide part toward the front. A fixed guide member formed in the guide portion is provided, and the rear end of the lifter is arranged to be movable up and down so as to move along the fixed guide member, and the front end of the lifter is held so as to be movable up and down. The front end of the lifter stops descending when it enters the inclined guide part, and the fixed inclined molding frame provided on the rear upper surface of the lifter and having a downward slope of about 30 degrees toward the front is arranged so that it becomes horizontal. At the same time, a vertical molding frame that can be moved back and forth with respect to the fixed inclined molding frame is erected in the front part of the lifter, and the above-mentioned vertical molding frame is provided between the vertical forming frame and the fixed inclined forming frame at the lower part of the vertical forming frame. A movable inclined forming side frame is arranged at an opening angle of about 120 degrees with respect to the fixed inclined forming frame, and the movable inclined forming side frame is arranged so as to be movable and adjustable in a parallel direction along the inclined surface of the fixed inclined forming frame. A hexagonal shape convergence device for pipe material, which is characterized by: