JPS6039606B2 - Walking beam type conveyor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for transporting steel materials by a walking beam that repeats cyclic movements consisting of raising, advancing, lowering, and retracting a walking beam arranged in parallel with a fixed beam.

In a walking beam type conveyor from a subordinate column, the walking beam has a load section formed in the conveying direction on one horizontal plane, and the steel materials placed on the fixed beam are pushed up all at once. The stroke pitch is moved horizontally.
Therefore, on the tactical section, between the steel materials being transported,
If an empty zone is created in which no steel materials have been laid, steel materials cannot be transferred to that empty zone, and the zone can only be transported until the end as it remains an empty zone. Furthermore, the walking beam cannot be operated unless conditions are met on both the receiving side and the dispensing side. In one prior art technique to solve this problem, a movable block having a mechanism that can be inserted and removed independently is provided on the upper surface of the walking beam to form a loading section.

(Tokukan Sho 51-42274) When transporting steel materials, the movable blocks in zones where it is not desired to transport steel materials are selectively removed from among the individual movable blocks. The movable block has a concave curved lower surface with a length along the conveying direction that corresponds to the movement stroke of the walking beam, and an upper surface of the movable beam has a convex curved surface so that they are in sliding contact, and the movable block has an axis parallel to the conveying direction. It is configured to be able to swing around a pivot having a . Such a walking beam type conveyance device has a complicated structure. In addition, when steel products such as hot-rolled products have a lot of mill scale falling during transportation, the mill scale may get caught between the concave curved surface of the lower surface of the movable block and the convex curved surface of the upper surface of the walking beam. It becomes difficult to insert/remove or attach/remove. In particular, if the convex curved surface of the movable beam becomes deformed or worn out due to the effects of heat, water, etc. due to long-term use, it becomes difficult to remove the movable beam. Therefore, the main object of the present invention is to provide a walking beam type conveying device that overcomes the drawbacks of the prior art. The present invention provides a fixed beam extending in the conveying direction, a high-level cargo part installed in parallel with the fixed beam, provided rearmost in the conveying direction, and protruding upward, and a higher-level cargo part than the higher-level cargo part in the conveying direction. a lower loading part provided below at the front, and the higher loading part and the lower loading part have a walking beam having a length that is a natural number times one transfer stroke along the conveyance direction; The steel material is conveyed by vertical movement and horizontal movement equal to a natural number times one transfer stroke, and the vertical movement is carried out at the lower limit position where the high-rank cargo part is below the fixed beam, and when only the high-rank cargo part is located on the fixed beam. a first upper limit position where the steel material is lifted only by the high load part and which is located above the fixed beam; and a second upper limit position above the first upper limit position for pushing up the steel material by
This is a walking beam type conveyance device characterized by having a walking drive means that makes it possible to select an upper limit position.

Further, the present invention provides a fixed beam extending in the transport direction, a high-level military equipment section that is installed in parallel with the fixed beam, is provided at the rearmost position in the transport direction, and projects upward, and a a lower loading section provided downward at the front, and the upper loading section and the lower loading section each have an entrance walking beam having a length that is a natural number times one transfer stroke along the conveying direction; A high-level loading section that is arranged in parallel with the beam, is arranged forward in the conveyance direction relative to the entry-side walking beam, and is provided at the forefront in the conveyance direction and protrudes upward; an outgoing walking beam having a lower cargo part provided therein and configured to be symmetrical to the incoming walking beam with respect to a vertical plane perpendicular to the conveying direction; a connecting piece that is connected by a pin having a horizontal axis, and in which a low loading portion of the incoming walking beam near the outgoing walking beam and a low loading portion of the outgoing walking beam near the incoming walking beam are adjacent to each other; a lower limit position where the high loading part of the entry side walking beam is below the fixed beam; and a first upper limit position where only the high loading part is above the fixed beam and only the high loading part raises the steel material; The high loading part and the low loading part of the entry side walking beam are located above the fixed beam, and the high loading part and the low loading part are located above the first upper limit position where steel materials are weighed. a first lifting means for the input side walking beam that makes it possible to select two upper limit positions; a lower limit position where the high loading part of the output walking beam is below the fixed beam; and a lower limit position where only the high loading part is fixed. A third upper limit position, which is located above the beam and where the steel material is specially raised only by the high-level droplet part, and a high-level load part and a low-level load part of the exit walking beam are located above the fixed beam and which are used for high loading. a fourth upper limit position above the third upper limit position for pushing up the steel material by the upper and lower loading parts; and a second lifting means for the exit side walking beam; This walking beam type conveyance device is characterized by comprising means for horizontally moving the beam and the exit side walking beam in the conveyance direction over a length that is a natural number times one transfer stroke.

FIG. 1 is a side view of one embodiment of the present invention, and FIG. 2 is a sectional view taken along section line DD' in FIG.

The steel materials AI to A4 (these steel materials AI to A4 are generally indicated by the reference symbol A) are conveyed in a direction perpendicular to the plane of the paper in FIG. From there, it is conveyed to the left toward the exit roller table 3. The fixed beam 5 extends in the conveying direction 4 from the inlet roller table 1 towards the outlet loaf knurler pull 3 . A walking beam 6 is arranged between the fixed beams 5 and extends parallel to the fixed beams 5 in the transport direction 4 . The walking beam 6 has wheels 7 at its lower part and rides on a support rail 8. A cam member 9 is fixed to the lower part of the support rail 8, and this cam member 9 is connected to a wheel 101 provided at a fixed position. The means for horizontally reciprocating the walking beam 6 in the transport direction 4 is constructed as follows.

That is, one end of the link 11 is pin-coupled to the end of the walking beam 6. A lever 12 pivotally supported at a fixed position is connected to the other end of the ring 11 by a pin. The lever 12 is swung by a hydraulic cylinder 13 for horizontal movement. The means for raising and lowering the walking beam 6 is constructed as follows.

That is, one end of the link 14 is pivotally supported on the support rail 8. An end of a lever 16, which is pivotally supported at a fixed position, is connected with a pin to the end of the link 14. The lever 15 is swung by a lifting hydraulic cylinder 16. When the lifting hydraulic cylinder 16 is driven, the support rail 8 moves in the transport direction 4, and at this time, the cam surface of the cam member 9 is tilted up and down in the transport direction 4, and the wheels 10 are also in contact with it. The support rail 8 will be displaced up and down. The space between the inlet roller table 1 and the outlet roller table 3 is virtually divided into zones Z1, Z2, . . . Z5 having a length equal to one transfer stroke of the walking beam 6. Each zone Z
I to Z5 are longer than the length of the steel material A to be transported in the transport direction 4. The walking beam 6 includes a high cargo part 18 that protrudes upward at the rear in the transport direction 4 and this high cargo part 18.
It has a lower cargo part 19 provided forward and lower than the transport direction 4. The length of the high-level loading section 18 in the conveyance direction 4 is:
Approximately equal to the length of one zone. The length of the lower loading portion 19 of the walking beam 6 is approximately equal to the length of three zones in this embodiment. FIG. 3 is a side view showing the vertical positional relationship between the walking beam 6 and the fixed beam 5, which are raised and lowered by the lifting hydraulic cylinder 16.

FIG. 3 1 shows a state in which the walking beam 6 is at the lower limit, and FIG. 3 2 shows a state in which the steel material A on the walking beam 5 is pushed up by the high loading part 18 and the walking beam 6 is in the first upper limit position. , FIG. 3 shows that the walking beam 6 is at the second upper limit position above the first upper limit position, and the high tactical section 18 and the low cargo section 19 are connected to the fixed beam 5.
The state in which the upper steel material A is pushed up is shown. In FIG. 3, h indicates the difference in height between the high loading section 18 and the low loading section 19 of the walking beam 6 in the vertical direction. As shown in FIG. 3, the distance between the upper tree mounting portion 18 at the lower limit of the walking beam 6 and the upper surface of the fixed beam 5 is indicated by c. d
is the distance between the lower load portion 19 and the upper surface of the fixed beam 5 when the walking beam 6 is at the first upper limit position as shown in FIG. e is the distance between the high loading portion 18 and the upper surface of the fixed beam 5 when the walking beam 6 is at the first upper limit position. f is the distance between the lower load portion 19 and the upper surface of the fixed beam 5 when the walking beam 7 is at the second upper limit position as shown in FIG. \s
indicates the entire stroke of the walking beam 6 in the vertical direction, and indicates the height of the interval in the vertical direction between the lower limit in FIG. 31 and the second upper limit position in FIG. 3. From FIG. 3, the following first and second equations are obtained. h=d10e
...{1) s=c+f+h
""" [21 Here, in the present embodiment, if c=d and f=e, the third equation is obtained from the first and second equations.

s=d+e10h=2h...[3'
^h=Kyo S ---...[4].

The operation will be described with reference to FIG. 1 again.

Here, when zone Z4 is an empty zone because no steel material is located, a case will be described in which steel material A4 is placed in zone Z4 and transported. As shown in FIG. 1, the lifting hydraulic cylinder 16 is extended to the maximum, and the wheel
When the cam member 9 is at the cam position 9a, the walking beam 6 is at the lower limit position. Next, as shown in FIG. 1 and 2, when the lifting hydraulic cylinder 16 is moved to the intermediate position and the wheel 10 is positioned at the cam position 9b of the cam member 9, the walking beam 6 is at the first upper limit position.

The high rank teaching part 18 is located in zone Z5 on the entrance roller table 1.
Push up the steel material A4 located at . Then, the horizontal movement hydraulic cylinder 3 is extended as shown in FIG. 1, and the walking beam 6 is moved by one stroke in the conveyance direction 4.

As a result, the steel material A4 is moved to the empty zone 4. Therefore, by extending the lifting hydraulic cylinder 16, the wheel 10 is positioned on the cam surface 9a of the cam section 9, the walking beam 6 is placed at the lower limit position, and the steel material A4 is placed on the upper surface of the fixed beam 5 in the zone Z4. Ru.

The steel material AI in zone ZI is conveyed by the exit roller table 3 in a direction perpendicular to the paper surface of FIG. The walking beam 6 is set to the lower limit position, the hydraulic cylinder 13 for horizontal movement is contracted, and the high cargo part 18 is repositioned in the zone Z5, resulting in the state shown in FIG. 1.

Here, a new steel material A5 is conveyed to the entrance roller table 1. Next, as shown in FIG.
When the walking beam 6 reaches the second upper limit position, the walking beam 6 reaches the second upper limit position. Therefore, the steel materials A2 to A5 are loaded on the high load portion 18 and the low load portion 19 of the walking beam 6. As shown in Fig. 1, the hydraulic cylinder 1 for horizontal movement
3, the steel materials A2 to A5 are conveyed one stroke.

Thereafter, the lifting hydraulic cylinder 16 is extended, the wheel 10 is located at the cam position 9a, and the walking beam 6 is at the lower limit position, so that the steel material A2 in zone ZI is placed on the exit roller table 3. It will be done.

In this embodiment, when zone Z4 is an empty zone, steel materials A4 from the entrance roller table 1 can be placed in this empty zone Z4 while leaving steel materials AI to A3 as they are.

Therefore, the steel materials AI to A5 can be successively conveyed from the exit roller table 3. Also, zone Z
3. When Z4 is an empty zone, the steel material A4 conveyed by the entrance roller table 1 is transferred by two strokes by the walking beam 6, the steel material A4 is placed in zone Z3, and then the steel material A4 is transferred to the entrance roller table 1. The steel material A5 selected by the method may be placed in the zone Z4 by being transferred by one stroke of the walking beam 6.
FIG. 4 is a side view of another embodiment of the invention.

In this embodiment, the fixed beam 5 extends from the input loaf table 1 to the output roller table 3. An inlet walking beam 6 and an outlet walking beam 106 are arranged in parallel with the fixed beam 5 along the transport direction 4. In this embodiment, the entrance walking beam 6
The components related thereto are the same as those in the embodiment shown in FIGS. 1 and 2, and corresponding parts are designated by the same reference numerals and will not be described further. Note that the walking beam 6 is not provided with the above-mentioned hydraulic cylinder 13 for horizontal movement. The exit walking beam 106 and its related components are configured to be symmetrical with the entry walking beam 6 with respect to the vertical plane perpendicular to the conveyance direction 4, and the components corresponding to the entry walking beam 6 are is expressed with a digit in the 100th place and detailed explanation is omitted. One end of the link 20 is pin-coupled to the exit walking beam 106 . The end of the link 20 is pin-coupled to one end of the lever 21. Lever 21 is pivoted in a fixed position. Lever 2
1 is swung by a hydraulic cylinder 22 for horizontal movement. The entrance walking beam 6 and the exit walking beam 106 are connected via a connecting piece 24. Connecting piece 2
4 are pivotally supported by pins 25 and 26 having horizontal axes perpendicular to the paper plane (that is, the vertical plane of the conveyance direction 4). The exit walking beam 106 can assume third and fourth upper limit positions corresponding to the first and second upper limit positions of the entry walking beam 6, respectively. 3rd and 4th
At the upper limit position, the hydraulic cylinder 16 for raising and lowering connects the entry walking beam 6 to the low loading portion near the exit walking beam 106, which is connected by the connecting piece 24 in which the wheels 110 are located at the cam positions 109b and 109c of the cam piece 109, respectively. , is adjacent to the lower loading portion of the exit walking beam 106 near the entrance walking beam 6,
As a result, no gap is created between zones Z6 and Z7. FIG. 4 1 shows a standby state in which both the entrance walking beam 6 and the exit walking beam 106 are at the lower limit position.

The space between the inlet roller table 1 and the outlet roller table 3 is virtually divided into zones Z1, Z2, . . . , ZII. In each zone ZI to ZII, steel materials AI to AII are used. 4. From the state shown in FIG. 1, the steel material AI in zone ZI is conveyed by the exit roller table 3 in a direction perpendicular to the paper surface of FIG. 4, and then the steel material A2 in zone Z2 is placed on the exit roller table 3. At the same time, zone Z3~
FIG. 4 shows a state in which steel materials A3 to AII in ZII are conveyed all at once in one stroke conveyance direction 4. The entrance walking beam 6 is placed at the second upper limit position, and the exit side walking beam 106 is placed at the fourth upper limit position corresponding to the second upper limit position.
In order to position each at the upper limit position, the lifting hydraulic cylinder 16 is driven to position the cam position 9c of the cam piece 9 to the wheel 101, and the other lifting hydraulic cylinder 116 is similarly driven to move the cam piece 109 to the upper limit position. cam position 109c
Position the wheel 1101. In this way, the steel materials A2 to A
II is conveyed one stroke in the conveying direction 4 by the hydraulic cylinder 22 for horizontal movement. So, high-ranking war cargo department 1
Steel material A2 on 18 is arranged in zone ZI, and steel material A3~
AII are placed in zones Z2 to ZIO, respectively, and in this state, the hydraulic cylinders 16 and 116 for lifting and lowering are driven to set the entry walking beam 6 and the exit walking beam 106 to the lower limit positions, and the steel material A2 is moved to the exit roller table 3. Move to the top and move the steel materials A3 to AI I to zones Z2 to ZI on the fixed beam 5, respectively. At this time, since zone ZII becomes an empty zone, new steel material is supplied by the entrance roller table 1 from a direction perpendicular to the paper surface of FIG. 4 (not shown). FIG. 4 shows a case where zone ZIO is an empty zone.

The entry side walking beam 6 is set at the first upper limit position as shown in FIG. 4, and the steel material AIO conveyed by the entry side loaf knot 1 is pushed up. Horizontal movement hydraulic cylinder 22
The exit walking beam 106 is at the lower limit position due to
At the same time, the entry side walking beam 6 is moved one stroke in the horizontal direction, and the steel material 10 can be distributed in the zone ZIO'. FIG. 4 shows a case where zone Z6 becomes an empty zone.

With the entry side walking beam 6 at the second upper limit position, the steel material A6 located at the forefront of the lower loading section 19 in the conveying direction 4 is transferred by one stroke along with the other steel materials A7 to AIO,
Steel material A6 can be placed in zone Z6. In this way, the steel material A6 is loaded onto the empty zone Z6, and therefore, the steel materials AI to AI0 can be sequentially conveyed from the input side Loafner Blue to the output side roller table 3 through the empty zone. FIG. 4 shows a state in which only the steel material A2 in zone Z2, that is, the high cargo part 118 of the exit walking beam 106, is placed in zone ZI, that is, the exit roller table 3. It is at the lower limit position, and the exit walking beam 106 is at the third upper limit position corresponding to the first upper limit position of the entry walking beam 6. Therefore, the lower cargo portion 119 does not push up the steel materials A3 to A6. In this way, steel material A2 in zone Z2 is placed in zone ZI. In FIG. Indicates the condition.

Entry walking beam 6 and exit walking beam 1
06 as the first upper limit position and the third upper limit position, and both walking beams 6, 106 are moved in the transport direction 4 by one stroke. In each of the embodiments shown in FIGS. 1 to 4, the walking beams 6, 106 are movable between the entrance roller table 3 and the exit roller table 3, so that each roller table 3 and the walking beam 6, 106 are movable between the entrance roller table 3 and the exit roller table 3. There is no need for any other means to transfer the steel material A between the two, which has the advantage of reducing equipment costs.

As described above, according to the present invention, even if there is an empty zone, this empty zone can be filled, so that steel materials can be sequentially transported.

Furthermore, the structure is relatively simple, and there is no need to worry about breakdowns due to mill scale or wear, and maintenance is easy. In particular, by making it possible to raise and lower the entrance and exit walking beams individually, and by connecting the entrance and exit walking beams with a connecting piece, it is now possible to horizontally move both as a unit. Therefore, even if an empty zone occurs between consecutive zones, it becomes possible to fill the empty zone with steel materials and transport the steel materials one by one.

[Brief explanation of the drawing]

FIG. 1 is a side view for explaining the operation of an embodiment of the present invention, FIG. 2 is a sectional view taken along the cutting plane line Rho River in FIG. 1, and FIG. FIG. 4 is a side view showing the vertical positional relationship. FIG. 4 is a side view for explaining the structure of another embodiment of the present invention and the operation when the empty zone position is different. 1... Entrance roller tefulle, 3... Outlet loaf teful, 4... Conveyance direction, 5...
...Fixed beam, 6,106...Walking beam, 13,22...Hydraulic cylinder for horizontal movement, 16,
116... Hydraulic cylinder for lifting, 18,118
...High-rank cargo section, 19,119...Low-rank cargo section, 24...Connection piece. Figure 1 Figure 1 Figure 2 Figure 3 Figure 4 Figure 4

Claims (1)

[Scope of Claims] 1. A fixed beam extending in the conveying direction, a high loading section installed in parallel with the fixed beam, provided at the rearmost position in the conveying direction, and protruding upward, and a low loading section provided below in the forward direction, and the high loading section and the low loading section include a walking beam having a length that is a natural number times one transfer stroke along the conveyance direction, and a walking beam that moves the walking beam up and down. The steel material is transported by horizontal movement of a natural number times one transfer stroke, and the vertical movement is
a lower limit position in which the higher loading part is below the fixed beam;
a first upper limit position where only the high loading part is above the fixed beam and lifting the steel material only by the high loading part;
a second upper limit position, in which the high loading part and the low loading part are located above the fixed beam, and is higher than the first upper limit position for pushing up the steel material by the high loading part and the low loading part; A walking beam type conveying device characterized by having a walking drive means that makes it possible to select. 2. A fixed beam extending in the conveyance direction, a high loading part installed in parallel with the fixed beam and protruding upward and provided at the rearmost position in the conveyance direction, and a high loading part provided below in front of the high loading part in the conveyance direction. The high loading section and the low loading section are arranged in parallel with the entry side walking beam and the fixed beam, the length of which is a natural number times one transfer stroke along the conveyance direction. A high-level loading section that is arranged in front of the entry-side walking beam in the conveyance direction and protrudes upward in the forward direction of the conveyance direction, and a low-level loading section that is provided below and behind the high-level loading section in the conveyance direction. have,
an exit walking beam configured to be symmetrical to the entry walking beam with respect to a vertical plane perpendicular to the conveyance direction;
The input side walking beam and the output side walking beam are connected to each other by a pin having a horizontal axis, and a low loading part of the input side walking beam is connected to the output side walking beam, and a low loading part of the output side walking beam is connected to the output side walking beam. A connecting piece in which the low loading part is adjacent to the lower limit position, the high loading part of the entry side walking beam is below the fixed beam, and only the high loading part is above the fixed beam. Therefore, the first upper limit position for lifting the steel material, and the high loading part and low loading part of the entry side walking beam are located above the fixed beam, and the high loading part and the low loading part push up the steel material. a first lifting means for the incoming walking beam that makes it possible to select a second upper limit position above the first upper limit position; and a high loading portion of the outgoing walking beam is below the fixed beam. a lower limit position, a third upper limit position where only the high loading part is above the fixed beam and lifts the steel material only by the high loading part, and the high loading part and the low loading part of the exit walking beam are fixed. For the exit side walking beam, which is located above the beam and allows selection of a fourth upper limit position above the third upper limit position for pushing up the steel material by the high loading part and the low loading part. a second elevating means, and a means for horizontally moving the entry walking beam and the exit walking beam in the transport direction over a length that is a natural number times one transport stroke. Device.