JP4322599B2 - Sheet material unloader - Google Patents

Description

  The present invention relates to a plate material stacking apparatus that stacks a plurality of plate materials and discharges them to a predetermined outlet or relay point.

  This apparatus is very useful for a production line or the like where processing and unloading of a plate material should be carried out continuously and efficiently.

  FIG. 15 shows a schematic side view of a conventional plate material stacking apparatus 901. The plate material S cut and formed by the shearing device 80 is transported to the receiving device 20 by the belt conveyor 10, passes through the inside of an alignment gauge composed of several guide plates 24, and has a receiving table (not shown) of the receiving device 20. Stacked on top. When the planned number of plate materials S are fully loaded on the receiving table, the shearing device 80 and the belt conveyor 10 are temporarily stopped, and when the plate materials S stacked on the receiving table are carried out to a predetermined discharge location, The shearing device 80 and the belt conveyor 10 are restarted.

  When such a plate material loading device 901 is used, there is a problem that the plate material S stacked on the receiving table cannot be carried out to a predetermined discharge place unless the shearing device 80 is temporarily stopped. . In order to solve this problem, the following plate material loading device 902 has been devised and manufactured.

  16A and 16B are schematic side views of the plate material stacking apparatus 902. FIG. The plate material stacking device 902 is configured on the assumption that the plate material S is an iron plate, and the adsorption conveyor 60 can transport the plate material S while being attracted downward by using the action of a permanent magnet. it can. The adsorption conveyor 60 has two annular chain belts in which permanent magnets are periodically arranged, and a release plate 71 is disposed between the two chain belts.

  The release plate 71 on the left side of the drawing can move up and down, and its vertical position is controlled by a switching device 72. When the release plate 71 on the left side of the drawing is pushed downward, the plate material S passes through the inside of the alignment gauge on the left side of the drawing (FIG. 16A), and when the release plate 71 on the left side of the drawing is retracted upward, the plate material. S passes through the inside of the alignment gauge on the right side of the drawing (FIG. 16-B).

  If such a method is followed, the stacking location can be switched in a timely manner, so that the other load (plate material S) can be carried out within the loading time on the one hand, and the shearing device 80 is temporarily set. There is no need to stop. That is, conventionally, by adopting such a so-called double buffering system, the above-described “shearing device 80 is temporarily stopped unless the sheet material S stacked on the receiving table is placed at a predetermined discharge location. It was solving the problem that “cannot be removed.”

However, the plate material loading device 902 has the following problems.
(Problem 1) When the above-described plate material unloading device 902 is installed in the production line, a much larger installation space is required than in the case of the configuration of the plate material unloading device 901 in FIG.
(Problem 2) It is necessary to increase the number of plate receiving bases, carry-out ports, discharge / conveyance systems, etc. to two systems, and the amount of modification of the apparatus and peripheral equipment is large.
(Problem 3) The plate material unloading device 902 is configured on the assumption that the plate material S is an iron plate, and cannot treat other non-adsorbed materials (eg, plastic, etc.) in the same manner.

The present invention has been made to solve the above-mentioned problems, and the purpose of the present invention is, for example, whether the stop time of a plate material processing apparatus such as a shearing device is significantly shorter than that of a conventional device (plate material unloading device 901). or such is not absolutely necessary downtime, furthermore, to realize a sheet material product out apparatus capable or easily structures be small Ku suppress or modification of installation space and equipment configurations and peripheral equipment.

  Further, a further object of the present invention is to make it possible to maintain the productivity of the production line as high as, for example, the same level as or more than when using the above-described conventional device (plate material loading device 902), or an easy plate material. It is to realize a shipping device.

  However, it is sufficient that the above-mentioned individual objects are achieved individually by at least one of the individual means of the present invention, and the individual inventions of the present application simultaneously solve all the above-mentioned problems. It does not necessarily guarantee that there is a means that can be solved.

  In order to solve the above problems, the following means are effective.

That is, according to the first means of the present invention, in the plate material stacking apparatus that stacks a plurality of plate materials and discharges them to a predetermined outlet or relay point, a receiving device that receives a plurality of loaded plate materials and a plate material are not dropped. And a stock apparatus having n (n ≧ 1) stock members that can be supported in the same manner, and the receiving apparatus includes a receiving table having a receiving surface for receiving a plate material, and a first for raising and lowering the receiving table . comprises a lifting mechanism, further, to the receiving table, the trough support surface of the stock member can be disposed of n stock member in a state than the receiving surface retreated downwardly provided, the valley along the valleys A receiving roller for discharging the plate material is provided at the top of the peak portion of the receiving table located by the side, and a plurality of the discharging rollers are arranged substantially horizontally at substantially the same height, thereby receiving the receiving surface of the receiving table. Forming and stock equipment on the stock A rotation fixing portion that rotatably fixes one end of the material and a rail on which the rotation fixing portion reciprocates are provided, and the stock member, the rotation fixing portion, and the rail are received by the support surface of the stock member. A second raising / lowering mechanism is provided for lowering the plate in a substantially horizontal manner according to the number or weight of the plate members. In addition, the axis of the rotation fixing portion on which the stock member rotates or rotates is secured substantially perpendicular to the direction of movement in which the plate material is carried in and substantially horizontal. While the receiving device is receiving the plate material, the stock member is guided near the plate material by holding the support surface of the stock member at an angle of 5 ° to 30 ° with respect to the horizontal in the vicinity of the plate material inlet. Stand by with the function of a board. Before the receiving device discharges the plate material to a predetermined outlet or relay point, the stock member rotates around the axis of the rotation fixing portion so that the support surface of the stock member becomes horizontal, and at least the receiving device is the plate material. Is discharged to a predetermined outlet or relay point, the plate member is supported by the support surface of the stock member . After the height of the receiving surface of the receiving device that returns to the receiving state from below exceeds the height of the support surface, the rotation fixing portion that rotatably fixes one end of the stock member moves on the rail. Thus, the stock member is retracted from the valley below the receiving surface of the receiving device, and the stock member, the rotation fixing portion, and the rail are lifted to the uppermost point by the second lifting mechanism, and the rotation fixing portion is placed on the rail. The stock member waits with the function of the plate material guide plate in the vicinity of the plate material entrance .

  The stock member can be formed in a tooth shape composed of a plurality of rods as in, for example, Example 1 described later, but the shape of the stock member is not necessarily a tooth shape or a rod shape. In addition, when the shape of the stock member is a thin bar, a plurality of such bars (stock bars) are required, but the configuration of the plate material loading device of the present invention is not necessarily such a configuration (n ≧ 2). It is not limited to.

According to a second means of the present invention, in the first means described above, when the number or weight of the plate materials received by the receiving device reaches a predetermined number, the loaded plate material is supported by the stock member. The stock member sequentially receives the support state for receiving and supporting the plate material, the retracted state withdrawn from the lower side of the reception surface, and the standby state for waiting in the vicinity of the plate material entrance until the transition to the support state. By repeating periodically, the board material is carried in and conveyed continuously without stopping the board material.
As a means for measuring the number or weight of plate materials received, a positioning device that detects the position of the top plate material, a weight sensor that measures the weight of all plate materials being received, a plate number counter, or a laser And timers can be used. The support operation for receiving the loaded plate material by the support surface of the stock member can be automatically started at an optimal timing by using these sensors and counters.

  By the above means of the present invention, the above-mentioned problem can be effectively or rationally solved.

  The effects obtained by the above-described means of the present invention are as follows.

  That is, according to the first means of the present invention, at least while the receiving device discharges the plate material to the predetermined outlet or relay point, the plate material is supported by the support surface of the stock member and is received from below. After the height of the receiving surface of the receiving device that returns to the position above the height of the support surface of the stock member, the stock member is retracted from below the receiving surface of the receiving device. For this reason, while the receiving device is discharging the plate material, the plate material can be continuously received by the stock member. In addition, since the stock member can be disposed in the above-described valley portion, the receiving device can easily return to the receiving state from below, so that the plate material can be easily transferred from the stock member to the receiving device. .

  Therefore, according to the first means of the present invention, the stop time of the plate processing apparatus such as a shearing device is significantly shorter than that of the conventional device (plate material unloading device 901), or such stop time is completely required. In addition, it is possible to realize a plate material loading device having a structure that can suppress or easily reduce the installation space, the device configuration, the amount of modification of peripheral equipment, and the like.

Also, already carried on the stock member, the upper surface of the plate being stacked, maintaining when receiving a sheet coming newly carried in continuous substantially constant position of the upper surface of the receiving plate member Can do. This contributes to stable and accurate alignment and loading, and also contributes to an increase in the number of plate members that can be held by the stock member. Further, the larger the number of plate members that can be held by the stock member, the longer the time required for the receiving device to discharge the plate members can be secured. And if this time is ensured long enough, the board | plate material piled up on the receiving stand can be carried out to a predetermined | prescribed discharge | emission place, without stopping processing apparatuses, such as a shearing apparatus, temporarily.

Therefore, it contributes to a stable and accurate alignment stacking plate material, the throughput of sheet material product out device to automatically maximum or optimum.
Furthermore, since the receiving surface is formed by a plurality of discharge rollers arranged horizontally, the plate material can be directly and simply discharged after receiving the plate material. For this reason, the structure of an apparatus can be put together compactly and the efficiency of discharge | emission operation | movement can also be made high.
Moreover, according to this invention, the magnitude | size of the change operation at the time of changing the state of a stock member from the standby state to the state (set state) which can receive a board | plate material can be suppressed to the minimum. That is, as will be described later, the stock member can be shifted to the above set state only by rotating the stock member about 30 ° at most along the axis. It becomes possible or easy to control accurately.
Furthermore, the present invention provides a function of a guide plate to a waiting stock member.

In addition, according to the second means of the present invention, since the support operation for receiving the loaded plate material on the support surface of the stock member can be automatically started at an optimal timing, the throughput of the plate material unloading device relating to the transport amount can be reduced. It becomes possible or easy to automatically maximize or optimize.
Furthermore, since the stock members can be operated efficiently periodically and continuously, for example, the productivity of the production line is kept high to the same level as or more than when the above-mentioned conventional device (plate material loading device 902) is used. It is possible or easy to do.

  Hereinafter, the present invention will be described based on specific examples.

  However, the embodiments of the present invention are not limited to the following examples.

  FIG. 1 is a schematic perspective view of a part of the plate material stacking apparatus 100 according to the first embodiment. FIGS. 2A and 2B are a schematic plan view and a side view of a part of the plate material stacking apparatus 100, respectively. The plate material stacking device 100 includes a belt conveyor 10, a receiving device 20, and a stock device 30 shown in FIG.

  For example, the plate material S processed by a predetermined processing apparatus such as a cutting machine is conveyed to the guide plate 24 of the receiving apparatus 20 by the belt conveyor 10. The guide plate 24 has two types of sizes, and a total of six pieces constitute one alignment gauge. The loaded board material S passes through the inside of the alignment gauge and is stacked on a receiving table 23 of the receiving device 20.

A total of five discharge rollers 22 for discharging the plate material S are provided at the tops of the peaks located on both sides of the valley 23 a along the valley 23 a of the receiving table 23. A plurality of discharge rollers 22 are held substantially horizontally at substantially the same height to form a receiving surface 22a.

That is, the receiving table 23 is transportable out roller 22 are disposed at substantially equal intervals, the surface 22a illustrated represents the contact surface between the sheet material S and the carry-out roller 22. This surface 22 a is the receiving surface of the receiving device 20.

  A total of four valley portions 23 a are provided at approximately equal intervals between the carry-out rollers 22 on the receiving table 23. The valley portion 23a is located below the receiving surface 22a, and the stock members 31 assembled in a tooth shape can be hidden by the valley portion 23a. In other words, each support surface 31a of the stock member 31 can be positioned below the receiving surface 22a by storing the stock member 31 so as to match each valley 23a.

  The receiving stand 23 stands on the first lifting mechanism 21. The lifting mechanism 21 is configured by a hydraulic lift, but may be configured by using another lifting mechanism. Reference numeral 80 denotes a shearing device.

  FIG. 3 is a side view of the stock member 31 of the plate material loading apparatus 100 in a standby state. The stock device 30 is a device for controlling the positions of the five stock members 31 assembled in a tooth shape, and the housing 35 stands on the second lifting mechanism 32. The elevating mechanism 32 is also configured by a hydraulic lift like the elevating mechanism 21, but may be configured using other elevating mechanisms. One end of the stock member 31 is rotatably fixed by a rotation fixing portion 34.

  The rotation fixing portion 34 can reciprocate on a rail 36 fixed to the housing 35. The top end of the support arm 33 supports the stock member 31 from below, and the position (rotation angle) of the stock member 31 can be controlled by controlling the position of the support arm 33 in the vertical direction.

  With this configuration, the stock member 31 is rotated around a rotation axis in the rotation fixing portion 34 that is substantially perpendicular and substantially horizontal to the direction of movement in which the plate material S is carried. Can do.

  FIG. 4 is a side view of the stock member 31 in the set state. This state is obtained by moving the support arm 33 downward from the standby state of FIG. In this set state, the stock member 31 can receive (support) the loaded plate material on its support surface 31a.

  FIG. 5 is a side view of the stock member 31 in the retracted state. Such a retracted state can be obtained by moving the position of the rotation fixing portion 34 to the right along the rail 36 while the support arm 33 is positioned downward as in FIG. Hereinafter, in the first embodiment, the state in which the housing 35, the rail 36, and the like are lifted up to the uppermost point by the second lifting mechanism 32 is referred to as a retracted state.

  6A and 6B are flowcharts illustrating a control procedure of a program (parent task) executed by the control device that controls the receiving device 20. The main control program of the plate material stacking apparatus 100 is composed of a control program (parent task) on the receiving apparatus 20 side and a control program (child task: FIG. 7) on the stock apparatus 30 side.

  In this parent task, first, a child task (FIG. 7) is activated in step 605 of FIG. 6A. The steps up to step 620 are equivalent to this parent task initialization process.

  In step 610, the belt conveyor 10 is powered on and the belt conveyor 10 is activated. In step 615, the process waits for completion of the operation of shifting the stock bar (: stock member 31) to the standby state. This waiting event is canceled by the “standby operation completion report (step 720)” from the control program (child task: FIG. 7) on the stock apparatus 30 side. In step 620, the shearing device 80 is activated to start processing the plate material S. The above is the initialization process of the parent task.

  Hereinafter, a control procedure to be periodically executed by the parent task will be described. In step 625, a stock bar (: stock member 31) set command is delivered to the child task. Based on this set command, the stock apparatus 30 shifts the stock bar from the standby state of FIG. 3 to the set state of FIG. 4 by the action of steps 730 and 740 described later. This set state is a state in which the stock member 31 can receive the plate material S.

  After the stock device 30 side (child task side) sets the stock member 31 to the set state, the plate material S is received by the stock member 31 for a while until the parent task executes step 650 described later. In the meantime, on the receiving device 20 side (parent task side), it is possible to execute the discharging process of a large number of plate materials S stacked on the receiving table 23.

  Therefore, in step 630, the receiving table 23 is lowered to the lowest point by the position control of the elevating mechanism 21. In FIG. 8, the side view of the receiving stand 23 located in the lowest point is shown. FIG. 8 can also be said to be a side view of the receiving apparatus 20 that executes the plate material discharging operation (next step 635).

  In step 635, a large number of plate materials S stacked on the receiving table 23 are discharged onto the roller conveyor 40. A large number of conveying rollers 41 are arranged on the roller conveyor 40 at substantially equal intervals, and by setting the conveying rollers 41 to the same height as the unloading rollers 22 as shown in FIG. Can be smoothly discharged from the receiving stand 23.

  The power for discharging the plate material S loaded in large numbers may be given in any form. For example, various well-known methods such as extruding a large number of stacked plate members S in the horizontal direction or rotating the carry-out roller 22 can be used.

In step 640, the receiving table 23 is raised by position control of the elevating mechanism 21. FIGS. 9A and 9B are side views of the receiving device 20 before and after the reloading operation (plate material transfer operation) of the plate material S from the stock device 30 to the receiving device 20. The depth d of the trough 23a is such a depth that the receiving stand 23 does not interfere with the stock member 31 (stock bar). The symbol Z is a position coordinate in the vertical direction of the receiving surface 22a, the symbol Z ₀ denotes the position coordinates of the vertical support surface 31a, respectively, in step 645 examines the magnitude of the position coordinates. However, a vertically upward direction is a positive direction. As a result, if Z < Z ₀ , the ascending operation of step 640 is continued, and if Z ≧ Z _{0, the process} proceeds to the next step 650 (FIG. 6B).

  In step 650, a save command is delivered to the child task. This save command is a command that is checked in step 760 in FIG. 7 described later. Thereafter, in the control procedure on the child task side described later, the save command in FIG. 5 is based on the action of this save command and step 760 described later. A state is generated.

  In step 655, the lowering control for gradually lowering the receiving table 23 by the position control of the lifting mechanism 21 is executed. This lowering control is for optimally securing the height of the receiving surface 22a in accordance with the number (or weight) of the loaded plate material S. By this lowering control, the upper surface of the plate material S positioned at the top is provided. The height of σ (FIG. 9B) is optimally maintained.

In step 660, it is determined whether or not the number (or weight) m of the plate materials S loaded on the receiving table 23 has reached a predetermined threshold value m _0. The process moves to step 655. In step 665, the state of the stock bar is checked. If it is waiting, the process proceeds to step 625, and if not, the process proceeds to step 670. This determination process can be performed depending on the presence / absence of the above-described “standby operation completion report (step 720)”.

  In step 670, the state of the end flag E is checked. If E = ON, the process proceeds to step 675. Otherwise, the process proceeds to step 655. This end flag E is set by the child task of FIG.

In step 675, a predetermined end process is executed. As this operation, for example, the following processes (a) to (c) may be executed.
(A) Stop of shearing device 80 (b) Stop of belt conveyor 10 (c) Processing equivalent to step 630, step 635, etc. The above is the control procedure on the parent task side. In order to effectively configure the control procedure on the parent task side as described above, it is necessary to correctly configure the control procedure (FIG. 7) on the child task side as follows. As described above, this child task is a control program that is executed by the control device that controls the stock device 30, and is activated by step 605 in FIG. 6A. At this time, in the control procedure on the child task side, first, in step 710, the stock bar is positioned at the standby position (the standby state in FIG. 3).

  Next, in Step 720, a “waiting operation completion report” is delivered to the parent task side. In step 730, a “set command” waiting state is established. This waiting state is canceled when the “set command (step 625)” issued from the parent task side is received here (step 730). Thereafter, in step 740, the stock bar is set. FIGS. 10A and 10B are explanatory views for explaining the setting operation of the stock bar (stock member 31). 10A represents the “standby state” corresponding to FIG. 3 described above, and FIG. 10B represents the “set state” corresponding to FIG. 4 described above. That is, the transition from the standby state in FIG. 10A to the set state in FIG. 10-B is performed by position control of the support arm 33. Step 740 is a step of carrying out this vertical position control, whereby the stock bar is set to the set state.

  In step 750, as shown in FIG. 11, FIG. 9, or FIG. 8, the support surface 31a of the stock member 31 is controlled to descend to an optimal height (position control). FIG. 11 is an explanatory diagram for explaining the descent control of the stock apparatus 30. FIG. This descent control is performed in accordance with the number or weight of the loaded sheet materials S so that the receiving surface σ provided by the upper surface of the uppermost sheet material S is maintained at a substantially constant height (appropriate position in the alignment gauge). Be controlled.

  In step 760, the presence / absence of the save command issued in step 650 (FIG. 6B) is checked. If there is a new save command, the process proceeds to step 770; otherwise, the process proceeds to step 750. In step 770, the stock member 31 is retracted from the position shown in FIG. 9B to the retracted position shown in FIG. This position control can be executed by moving the stock member 31 with no weighted load to the right along the rail 36. Thereafter, when the height of the stock member 31 is returned to the height in the standby state by the operation of the elevating mechanism 32, the transition to the retracted state of FIG. 5 is completed.

  In step 780, the presence / absence of an end command is confirmed. This end command is issued at a time when the operation of the board material stacking apparatus 100 is to be ended, and may be configured by interrupt processing from a timer or other external interrupt processing. . As other external interruption processing, a manual command by the operator of the board material unloading device 100 or a command from another processing device can be considered.

  As a result of the confirmation determination in step 780, if there is an end command, the process proceeds to step 790; otherwise, the process proceeds to step 710. In step 790, a predetermined end flag E is set to the ON state. This end flag E is referred to in step 670 described above.

  Since the receiving device 20 and the stock device 30 are effectively synchronously controlled by the above-described configuration of the parent task and the child task, the plate material unloading device 100 can continuously and efficiently operate without stopping the belt conveyor 10. The plate material S can be loaded and discharged to the roller conveyor 40.

  FIG. 12 is a schematic side view of a part of the plate material stacking apparatus 200 according to the second embodiment of the present invention. The plate material stacking apparatus 200 includes a suction conveyor 60 as in the conventional apparatus (plate material stacking apparatus 902) of FIG. The adsorption conveyor 60 can carry the plate material S while adsorbing downward using the action of the permanent magnet. That is, the adsorption conveyor 60 has an annular chain belt in which permanent magnets are periodically arranged. However, since the suction conveyor 60 of the main plate material stacking apparatus 200 does not need to be provided with the conventional separation plate 71, three or four chain belts can be mounted as required. .

In the case where the plate material S is made of a ferromagnetic material such as an iron plate, for example, such a device (plate material loading device 902) can be configured based on the means of the present invention. Of course, even in that case, the operation and effect of the present invention can be entrusted.
[Other variations]
The embodiment of the present invention is not limited to the above-described embodiment, and other modifications as exemplified below may be made. Even with such modifications and applications, the effects of the present invention can be obtained based on the functions of the present invention.

  For example, in the first embodiment, the position of the stock member 31 is controlled by combining the vertical movement of the support arm 33 and the horizontal movement of the rotation fixing portion 34. However, for example, as shown in FIG. It is also possible to control the position of 31 with only one degree of freedom. In the case of the first embodiment, in order to shift the stock bar (stock member 31) from the standby state to the set state, it is only necessary to rotate the stock bar by about 5 ° to 30 °. There is a great advantage that the stock bar can be shifted to the set state.

The advantages and disadvantages of the stock members (31 ′, 31 ″) of FIGS. 13 and 14 with respect to the stock member 31 (Example 1) will be summarized below.
(1) Stock member 31 'in FIG.
[Advantage]: Since the degree of freedom is 1 (only horizontal movement of the stock member 31 ′ in the rod axis direction), position control can be simply configured.
[Disadvantages]: Since the operation when shifting from the standby state to the set state becomes large, a structure capable of withstanding high-speed position control is required. For this purpose, for example, it is necessary to reduce the weight of the stock member 31 ′ or to reduce the coefficient of friction with the plate material S on the support surface of the stock member 31 ′.
(2) Stock member 31 ″ of FIG.
[Advantage 1]: Since the degree of freedom is 1 (only rotational movement around the rotation axis), position control can be simply configured.
[Advantage 2]: As in the first embodiment, the stock member can be shifted from the standby state to the set state only by rotating the stock member about 5 ° to 30 ° at most along the axis. It is possible or easy to control quickly and accurately.
[Advantage 3]: The stock member 31 ″ also serves as a guide plate for guiding the plate material S. Normally, when the stock member is shifted from the standby state to the set state, that is, the stock member is turned to the set state. When moving, depending on the structure, shape, and operation of the apparatus, there is a possibility that the plate member S and the stock member that are being accommodated in the alignment gauge may interfere with each other. However, the stock member may be replaced with the stock member 31 ″ of FIG. If the shape of the guide plate and the role of the guide plate are provided at the same time, the plate material S may be stored in the alignment gauge more quickly. That is, according to the present configuration (FIG. 14), there is no possibility of interference between the plate material S and the stock member that are being accommodated in the alignment gauge.
[Disadvantages]: Since it is necessary to take the depth d of the valley 23a in FIG. 9-A, it is difficult to suppress the size (particularly the height) of the receiving table 23. However, as shown in FIG. 14B, such a configuration can be sufficiently effective when the width L of the plate S is relatively short.

The typical perspective view of a part of board material loading device 100 of Example 1 of the present invention. A schematic plan view of a part of the plate material stacking apparatus 100 Schematic side view of a part of the plate material loading apparatus 100 Side view of the stock member 31 of the plate material stacking apparatus 100 in the standby state The side view in the set state of the stock member 31 of the board | plate material loading apparatus 100 Side view in the retracted state of the stock member 31 of the plate material stacking apparatus 100 Flowchart (first half) showing a control procedure of a program (parent task) executed by a control device that controls receiving device 20 Flowchart (second half) showing control procedure of program (parent task) executed by control device controlling receiving device 20 The flowchart showing the control procedure of the program (child task) executed by the control device that controls the stock device 30 Side view of receiving apparatus 20 for executing plate material discharging operation Side view of the receiving device 20 that executes the plate material reloading operation (before reloading) Side view of the receiving device 20 that executes the plate material reloading operation (after reloading) Explanatory drawing explaining the setting operation of the stock member 31 (before setting) Explanatory drawing explaining the setting operation of the stock member 31 (after setting) Explanatory drawing explaining the descent control of the stock apparatus 30 Schematic side view of a part of the plate material unloading apparatus 200 according to the second embodiment of the present invention. The side view which shows the modification (stock member 31 ') of the operation | movement form of a stock member Explanatory drawing explaining the setting operation of the stock member 31 ″ (before setting) Explanatory drawing explaining the setting operation of the stock member 31 ″ (after setting) Schematic side view of a conventional plate material loading device 901 Schematic side view of a conventional sheet material loading device 902 Schematic side view of a conventional sheet material loading device 902

DESCRIPTION OF SYMBOLS 100: Plate material unloading apparatus 200: Plate material unloading apparatus 10: Belt conveyor 20: Receiving apparatus 21: First raising / lowering mechanism 22: Unloading roller 22a: Receiving surface of receiving apparatus 20 23: Receiving stand 23a: Valley part 24: Guide Plate 30: Stock device 31: Stock member 31 ': Stock member 31 ": Stock member 31a: Support surface of stock member 32: Second lifting mechanism 33: Support arm 34: Rotation fixing part 35: Housing 36: Rail 40 : Roller conveyor 41: Conveying roller 60: Adsorption conveyor 80: Shearing device S: Plate material
Z : vertical position coordinate of the receiving surface 22a
Z ₀ : Position coordinates in the vertical direction of the support surface 31a d: Depth of the valley 23a

Claims (2)

A plate material stacking device that stacks a plurality of plate materials and discharges them to a predetermined outlet or relay point,
A receiving device for receiving a plurality of the loaded plate materials;
A stock apparatus having n (n ≧ 1) stock members that can be supported so as not to drop the plate material,
The receiving device includes a receiving table having a receiving surface for receiving the plate material, and a first elevating mechanism for moving the receiving table up and down.
The receiving table has a trough where n stock members can be arranged in a state where a support surface of the stock member is retracted downward from the receiving surface,
The crest portion of the receiving stand located along the trough portion on the side of the trough portion has a discharge roller for discharging the plate material at the top portion thereof,
The receiving table forms the receiving surface by holding a plurality of discharge rollers arranged substantially horizontally at substantially the same height,
The stock apparatus has a rotation fixing portion that rotatably fixes one end of the stock member, and a rail that the rotation fixing portion reciprocates, and the stock member, the rotation fixing portion, and the rail, A second elevating mechanism for lowering the plate member while maintaining a substantially horizontal position according to the number or weight of the plate members received by the support surface of the stock member;
The axis of the rotation fixing portion, on which the stock member rotates or rotates, is secured substantially perpendicular to the direction of movement in which the plate material is carried in and substantially horizontal,
While the receiving device is receiving the plate material, the stock member support surface is held at an angle of 5 ° to 30 ° with respect to the horizontal in the vicinity of the plate material carry-in port, thereby The member waits with the function of the guide plate of the plate material,
Before the receiving device discharges the plate material to a predetermined outlet or relay point, the stock member rotates around the axis of the rotation fixing portion, so that the support surface of the stock member becomes horizontal, At least while the receiving device is discharging the plate material to a predetermined outlet or relay point, the stock member supports the plate material on the support surface,
After the height of the receiving surface of the receiving device that returns to the receiving state from below is higher than the height of the support surface, the rotation fixing portion that rotatably fixes one end of the stock member is the rail. By moving up, the stock member is retracted from the valley below the receiving surface, and then the stock member, the rotation fixing portion, and the rail are moved to the highest point by the second lifting mechanism. And the rotation fixing part is moved on the rail, and the stock member stands by in the vicinity of the plate material entrance and has a function as a guide plate for the plate material. Out device. The stock member receives the plate material carried in from the support surface when the number or weight of the plate materials received by the receiving device reaches a predetermined quantity ,
The stock member is
A support state for receiving and supporting the plate material;
A retracted state retracted from below the receiving surface;
By sequentially and sequentially repeating the standby state waiting in the vicinity of the carry-in port of the plate until the opportunity to transition to the support state,
The plate material unloading device according to claim 1 , wherein the plate material is continuously loaded and conveyed without stopping the loading of the plate material.

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