JP5125282B2 - Walking beam type conveyor - Google Patents

Description

  The present invention relates to a walking beam type conveying device used for conveying a coiled steel strip (steel strip coil) or the like.

  For transporting heavy objects such as steel strip coils, for example, a material (conveyance) placed on a plurality of mounting positions on a fixed beam by moving the movable beam (walking beam) up and down and back and forth. A walking beam type conveying device that intermittently conveys an object at a predetermined stroke can be realized at a low cost with a relatively small device, and is therefore used as a conveying device for supplying material to a production line. (See, for example, Patent Document 1).

  Normally, when a material is supplied to a production line using a walking beam type conveying apparatus, the walking beam type conveying apparatus is generally dedicated to the manufacturing line. Therefore, the supplied material is transported from the upstream side (material receiving port) to the downstream side (material delivery port) by the walking beam type transport device in the transport mode represented by “first packing” or “back packing”. The

  By the way, “front-packing” is a transfer mode in which a transfer operation is performed if there is a material on the fixed beam regardless of the presence or absence of the next material (a material newly received by the walking beam type transfer device). Accordingly, when there is no next material, the material is transported in a state where a certain placement position is blank without placing the material (tooth missing state).

On the other hand, “post-packing” is a transfer mode in which a transfer operation is performed when the next material is prepared. Therefore, material conveyance can be performed without becoming a tooth-missing state.
Japanese Patent Laid-Open No. 06-072522

  As described above, the walking beam type conveying apparatus is usually installed exclusively on a certain production line, and if the backpacking mode is applied, the material is arranged on the fixed beam without being disengaged. The Therefore, the charging pitch of the material into the production line is constant and efficient operation can be performed.

  On the other hand, with the recent increase in demand for steel materials, there are an increasing number of cases where a new production line is constructed near the existing production line. At that time, a walking beam type conveying device dedicated to the existing production line is used. In some cases, materials are also supplied to a new production line. At that time, the material is extracted from a predetermined mounting position on the fixed beam by a crane or the like and transported to a new production line. In this case, even if the backfill mode is applied, the material arrangement on the fixed beam is in a missing state, so the material supply to the existing production line is delayed by the amount of material that has become missing (blank). Continuous processing in the production line becomes difficult and may cause a transport neck.

  The present invention has been made in view of the circumstances as described above, and even when a material is appropriately extracted from a predetermined placement position of the walking beam type conveying apparatus and the material is supplied to another production line. An object of the present invention is to provide a walking beam type conveying device that can appropriately eliminate a blank state (tooth missing state) caused by the extraction and efficiently convey a material.

  In order to solve the above problems, the present invention has the following features.

[1] In a walking beam type conveying device that gives vertical movement and forward / backward movement to a movable beam, and intermittently conveys a material placed at a plurality of placement positions provided on the fixed beam at a predetermined stroke,
Solid from a predetermined mounting position on the constant beam and to extract the material, define any mounting position located on the downstream side, including the location position mounting for up and disconnect blank solve for the mounting position, the blank The movable beam is divided into an upstream side and a downstream side in the material transport direction corresponding to the canceling placement position, and the upstream side movable beam and the downstream side movable beam are synchronized with each other and the vertical motion is independent. The material placed on the blank elimination placement position is transported by a movable beam on the downstream side and placed on a placement position adjacent to the upstream side of the blank elimination placement position. It is configured to transport the placed material with an upstream movable beam,
When the material placed at the removal placement position is removed, and no material is placed at the blank removal placement position, the upstream movable beam is moved up and down. In addition to moving the downstream movable beam without moving up and down,
The walking beam type conveying apparatus, wherein the extraction placement position is set to the blank elimination placement position .

  [2] The walking beam transport apparatus according to [1], wherein a plurality of extraction placement positions are provided.

  In the present invention, even when the material is appropriately extracted from the predetermined placement position of the walking beam type conveying apparatus, the blank state (tooth missing state) caused by the extraction is appropriately eliminated, and the material is efficiently conveyed. be able to.

  An embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 shows a walking beam type conveying apparatus according to an embodiment of the present invention.

  As shown in FIG. 1, this walking beam transport apparatus includes a fixed beam 10 and a movable beam (walking beam) 11, and a plurality of movable beams 11 are provided on the fixed beam 10 by moving the movable beam 11 up and down and back and forth. A plurality of materials (here, steel strip coils C <b> 1 to C <b> 7) placed at the placement positions (here, seven locations from # 1 position to # 7 position) are provided on the movable beam 11. By repeating the operation of mounting at the mounting position (here, 7 positions from # 11 position to # 17 position) and transporting it to the next mounting position (here, # 2 position to # 8 position) The steel strip coil is intermittently conveyed at a predetermined stroke and supplied to the production line. The steel strip coil is received at the # 1 position and the steel strip coil is transferred from the # 8 position by a crane.

  And in this walking beam type conveying apparatus, in addition to this, a steel strip coil is formed from a predetermined placement position (here, # 4 position) on the fixed beam 10 as necessary by adopting the following structure. (Here, steel strip coil C4) is pulled out with a crane and supplied to another production line, and the blank state caused thereby is eliminated at the mounting position (here, # 4 position). It has become.

  That is, the movable beam 11 is divided into two parts, the upstream movable beam 11a and the downstream movable beam 11b, corresponding to the # 4 position that is the placement position for eliminating the blank, and the upstream movable beam 11a and the downstream movable beam. 11b is connected by a connector 12, and the upstream movable beam 11a and the downstream movable beam 11b move back and forth in synchronization by the operation of the hydraulic cylinder 13 for back and forth movement attached to the downstream movable beam 11b. The upstream movable beam 11a and the downstream movable beam 11b are operated by the operations of the vertical movement hydraulic cylinder 14a attached to the upstream movable beam 11a and the vertical movement hydraulic cylinder 14b attached to the downstream movable beam 11b. Can move up and down independently. Incidentally, positions # 11 to # 13 are disposed on the upstream movable beam 11a, and positions # 14 to # 17 are disposed on the downstream movable beam 11b.

  In the walking beam type conveying apparatus having the above-described structure, when normal conveyance is performed, the operation of the upstream movable beam 11a is shown in FIG. 2A, and the operation of the downstream movable beam 11b is shown in FIG. ), The upstream movable beam 11a and the downstream movable beam 11b are both “(0) standby → (1) reverse → (2) up → (3) forward → (4) down → (0) standby”. ”Cycle is repeated in synchronization. As a result, the steel strip coils C1 to C7 placed at the placement positions (# 1 position to # 8 position) on the fixed beam 10 are sequentially conveyed in the conveyance direction.

  At that time, the steel strip coils C1 to C3 placed at the upstream placement position (# 1 position to # 3 position) are placed at the placement position (# 11 position to # 13 position) on the upstream movable beam 11a. It is mounted and transported to the next placement position (# 2 position to # 4 position), and placed on the downstream placement position (# 4 position to # 7 position) including the blanking placement position. The steel strip coils C4 to C7 are mounted at the mounting position (# 14 position to # 17 position) on the downstream side movable beam 11b and are respectively transported to the next mounting position (# 5 position to # 8 position). Is done.

  Then, as shown in FIG. 3, in order to supply the steel strip coil to another production line, the steel strip coil C4 placed in the # 4 position is pulled out by a crane, so that the # 4 position is blank. In this case, a blank state detection sensor (not shown) detects this, and in order to eliminate the blank state, as shown in FIG. )) Standby → (1) reverse → (2) ascending → (3) forward → (4) descending → (0) standby ”, the downstream movable beam 11b is moved as shown in FIG. “(0) standby → (1) reverse → (2) stop → (3) forward → (4) stop → (0) standby” is performed.

  As a result, the steel strip coils C1 to C3 placed at the upstream placement position (# 1 position to # 3 position) are mounted on the upstream movable beam 11a, and the next placement position (# 2). The steel strip coils C4 to C7 that are transported to the position (# 5 position to # 4 position) and placed at the downstream placement position (# 5 position to # 7 position) are mounted on the downstream movable beam 11b. However, it is held at the same mounting position (# 5 position to # 7 position). As a result, the blank state (tooth missing state) caused by the extraction from the extraction placement position (# 4 position) is eliminated.

  At that time, in this walking beam type transport device, the steel strip coil is transported from the # 4 position which is the placement position for blank elimination to the adjacent # 5 position by the downstream movable beam 11b. The upstream movable beam 11a does not enter the # 5 position, and the steel strip coil C5 held at the # 5 position when the upstream movable beam 11a moves forward in the transport operation for eliminating the blank state. Will not collide.

  As described above, in this embodiment, even when the steel strip coil is appropriately extracted at the extraction mounting position (# 4 position) in order to supply it to another production line, a blank state generated thereby ( The tooth missing state) is eliminated at the blank elimination position (# 4 position), and the steel strip coil can be efficiently conveyed.

  In addition, since the movable beam is divided into two and the hydraulic cylinder for vertical movement is increased by one with respect to a normal walking beam type conveying apparatus, the increase in equipment cost is small and economical.

  As another embodiment of the present invention, as shown in FIGS. 5 and 6 (a) and (b) corresponding to the above-described FIGS. 1 and 2 (a) and 2 (b), normal conveyance is performed. , Both the upstream side movable beam 11a and the downstream side movable beam 11b are “(0) standby → (1) ascending → (2) forward →→ (3) descending → (4) reverse →→ (0) standby”. It is also possible to adopt a structure in which these cycles are repeated in synchronization.

  In this case, as shown in FIGS. 7 and 8 (a) and (b), corresponding to FIGS. 3 and 4 (a) and (b) above, the mounting position for extraction (# 4 position) When the steel strip coil C4 is pulled out with a crane and the # 4 position becomes blank, the upstream side movable beam 11a becomes “(0) standby → (1) ascending → (2) moving forward → (3) descending → (4) Backward → (0) Standby ”is performed, and the downstream side movable beam 11b moves to“ (0) Standby → (1) Stop → (2) Forward → (3) Stop → (4) Reverse →→ (0) ) "Standby" operation.

  Further, as another embodiment of the present invention, as shown in FIGS. 9 and 10 (a) and 10 (b), as shown in FIGS. When both are performed, the upstream movable beam 11a and the downstream movable beam 11b are both “(0) standby → (1) half backward → (2) up → (3) forward → (4) down → (5) half. A structure may be adopted in which the cycle of “backward → (0) standby” is repeated in synchronization.

  In this case, as shown in FIGS. 11 and 12 (a) and (b), corresponding to FIGS. 3 and 4 (a) and 4 (b), the mounting position for extraction (# 4 position). When the steel strip coil C4 is pulled out with a crane and the # 4 position becomes blank, the upstream side movable beam 11a is “(0) standby → (1) half backward → (2) lift → (3) forward” → (4) Descent → (5) Half backward → (0) Standby ”, the downstream side movable beam 11b moves to“ (0) Standby → (1) Half backward → (2) Stop → (3) Forward → (4) Stop → (5) Half reverse → (0) Wait ”.

  In these embodiments, the extraction placement position (# 4 position) is set as the blank elimination placement position, but the extraction placement position does not necessarily have to coincide with the blank elimination placement position. However, it is only necessary that the blank-removal mounting position is disposed downstream of the sampling placement position including the sampling placement position itself. For example, in the above embodiment, the structure of the walking beam type transport device is left as it is, the mounting position for extraction is changed to the # 3 position, and the blank state caused by the extraction at the # 3 position is eliminated at the # 4 position. You may do it.

  Further, in these embodiments, the sampling placement position is one of the # 4 positions, but there are two sampling placement positions on the upstream side including the blank elimination placement position (# 4 position). It can also be provided as described above (for example, # 2 position and # 4 position). In this case, both the blank state caused by the extraction of the # 2 position and the blank state caused by the extraction of the # 4 position are eliminated at the # 4 position.

  Alternatively, when two or more extraction placement positions are provided (for example, # 2 position and # 4 position), the respective extraction placement positions may be the blank elimination placement positions. In that case, the movable beam may be divided (for example, divided into three) in correspondence with each blank-removal mounting position (for example, # 2 position and # 4 position).

  And in said embodiment, although the case where a steel strip coil is extracted and supplied to another manufacturing line is considered, it applies also when changing the order of the steel strip coil supplied to a manufacturing line other than that. be able to. In other words, when the steel strip coil is extracted at the sampling placement position and the steel strip coil placed downstream is supplied to the production line, the steel strip coil is extracted at the sampling placement position. The present invention can also be applied to a case where the steel strip coil is placed after the steel strip coil placed on the upstream side.

  Furthermore, in said embodiment, although the steel strip coil is conveyed, it cannot be overemphasized that it can apply also when conveying other materials.

It is a figure which shows the walking beam type conveying apparatus of one Embodiment of this invention. It is a figure which shows the conveyance operation of the walking beam type conveying apparatus of one Embodiment of this invention. It is a figure which shows the tooth-missing state in the walking beam type conveying apparatus of one Embodiment of this invention. It is a figure which shows the conveyance operation for elimination of a missing tooth state in the walking beam type conveying apparatus of one Embodiment of this invention. It is a figure which shows the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the conveyance operation of the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the tooth-missing state in the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the conveyance operation for the tooth missing state elimination in the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the conveyance operation of the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the tooth-missing state in the walking beam type conveying apparatus of other embodiment of this invention. It is a figure which shows the conveyance operation for the tooth missing state elimination in the walking beam type conveying apparatus of other embodiment of this invention.

Explanation of symbols

10 fixed beam 11 movable beam (walking beam)
11a Upstream movable beam 11b Downstream movable beam 12 Connector 13 Longitudinal hydraulic cylinder 14a Vertical hydraulic cylinder 14b Vertical hydraulic cylinder C1 to C8 Steel strip coils # 1 to # 8 Fixed beam mounting positions # 11 to # 17 Movable beam mounting position

Claims (2)

In the walking beam type conveying apparatus that gives the movable beam up and down movement and back and forth movement, and intermittently conveys the material placed at a plurality of placement positions provided on the fixed beam with a predetermined stroke,
Solid from a predetermined mounting position on the constant beam and to extract the material, define any mounting position located on the downstream side, including the location position mounting for up and disconnect blank solve for the mounting position, the blank The movable beam is divided into an upstream side and a downstream side in the material transport direction corresponding to the canceling placement position, and the upstream side movable beam and the downstream side movable beam are synchronized with each other and the vertical motion is independent. The material placed on the blank elimination placement position is transported by a movable beam on the downstream side and placed on a placement position adjacent to the upstream side of the blank elimination placement position. It is configured to transport the placed material with an upstream movable beam,
When the material placed at the removal placement position is removed, and no material is placed at the blank removal placement position, the upstream movable beam is moved up and down. In addition to moving the downstream movable beam without moving up and down,
The walking beam type conveying apparatus, wherein the extraction placement position is set to the blank elimination placement position . The walking beam type conveying apparatus according to claim 1, wherein a plurality of sampling placement positions are provided.

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