JPH10244505A - Butt-joining device for board material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device which is capable of automatically butt-joining the edge parts of board materials and further, precisely butt-joining the edge parts of board materials with a comparatively small thickness, without causing the edge parts to run onto each other, when joining the edge parts of the board materials by butting them against each other. SOLUTION: The butt-joining device for a board material is equipped with a freely appearing positioning member 5 which sets the edge part of a board material 31 at a joining position and a pressing member 8 which anchors the board material 31 whose edge part is set at the joining position by the positioning member 5, on a conveying table 1. In addition, the pressing member 8 has a restricting member 18 which is mounted, in a freely movable manner, for restricting the action of the edge part of the conveyed board material 32 to run onto the edge part of the anchored board material 31. Further, a second pressing member 22 is provided which presses from above and anchors the board material 32 whose edge part is restricted in running onto the edge part of the board material 31 by the restricting member 18 and thereby, anchors the board material 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a butt joining apparatus for a plate used as a face material of a wooden panel.

[0002]

BACKGROUND ART With the industrialization of houses, floors, walls and roofs of houses are manufactured in advance as panels in factories, and such panels are assembled at building sites to perform house construction. Panel construction methods have become popular in recent years. Then, in order to further promote industrialization, a plurality of panels are assembled in a factory to some extent (this is called a sub-assembly or a sub-assembly). The technology of assembling such a plurality of panel sub-assemblies at a construction site to further shorten the construction period at the site has become more active.

By the way, in the case of a wooden panel, a frame is formed by assembling a core material forming a rectangular frame of up, down, left and right and a vertical and horizontal core material provided inward using a square material. In the case of a panel, a plate material such as plywood is joined to one side of the frame to form a face material. In the case of such a large wooden panel, a panel made of two sheets connected to each other is used as a surface material.In the process of connecting such two panels, conventionally, a manual work is performed on a work table. , The edges of the two plate members were butted together, and a stapler was struck over the butted edge portions with a hammer to join the two plate members to each other.

[0004]

As described above, conventionally,
It has been necessary to manually stap the edges of the two sheet materials from one end to the other, and then to strike the stapler over both end edges of the ends, which requires time and effort. Also, because it is a wood panel,
Because a relatively thin plate is used, when the edges of two plates are abutted against each other, the edge of one plate may ride over the edge of the other plate. In such a case, it is necessary to strike the stapler after aligning the both edges by hand and bringing the stapler into an accurate butting state, which further increases the man-hour and time.

Accordingly, an object of the present invention is to provide a plate butt-joining apparatus which can automatically butt the edges of a plurality of plate members when the edges are joined to each other. is there. It is another object of the present invention to enable edge portions of plate members having a relatively small thickness to be accurately butted without climbing each other.

[0006]

In order to solve the above-mentioned problems, the invention according to claim 1 is, for example, as shown in FIG. 3, a transfer table 1 for transferring a plurality of plate members 31, 32, A joining device (6) for joining the butted edge portions 33 of the plurality of plate materials 31 and 32 on the table 1.
Above, a positioning member 5 for contacting the edge of the plate material 31 and positioning the edge at the joining position;
For example, a feature is provided in which a stopper pin is provided so as to be able to protrude and retract from below.

Here, examples of the plate material include plywood and veneer, but may be made of a composite material. Further, as the carrier, a carrier provided with a roller conveyor on a frame is typical, but a carrier having a flat surface on the frame may be used, and the specific structure is not limited. Note that the term “joining” refers to fixing and joining together butted edges of plate materials, and examples of the joining device include a device that strikes a stapler with a striker. For example, an adhesive is applied. A thing or an adhesive tape may be attached. As the positioning member, a plurality of stopper pins may be used, but one or more stopper plates or other members having any shape may be used in addition to the pins. Further, being able to move up and down from below means that the positioning member incorporated inside the transfer table can be moved by moving it up and down using, for example, an air cylinder unit, and its driving source is an air cylinder unit. The present invention is not limited to this, and may be a hydraulic cylinder unit, an electric motor, a gear mechanism, or the like.

As described above, according to the first aspect of the present invention, the positioning member 5 at the joining position, which comes into contact with the edge of the plate 31, is provided on the carrier 1 so as to be able to protrude and retract from below. Since the plate material butt-joining device is used, the positioning member 5 projecting from below onto the carrier 1 is moved to the plate material 31.
Are in contact with each other, and the edge is positioned at the joining position. Therefore, the edge of the conveyed plate 32 can be automatically butted against the edge of the plate 31 positioned at the joining position in this manner.

The invention according to claim 2 is the invention according to claim 1.
The plate material butt-joining apparatus described in FIG.
As shown in FIG. 5, a pressing member 8 for pressing the plate 31 whose edge is positioned at the joining position by the positioning member 5 from above to a fixed state on the carrier 1. For example, a configuration provided with a first pressing plate is characterized. For example, the pressing member includes a first pressing plate.
An elastic pad material or the like may be used. Further, pressing from above means that the plate member is fixed on the carrier, and a pressing member arranged above the carrier, for example,
It is movable by operating vertically using an air cylinder unit assembled on the side of the carrier,
The driving source is not limited to the air cylinder unit,
It may be a hydraulic cylinder unit, an electric motor, a gear mechanism, or the like.

As described above, according to the second aspect of the present invention, the plate member 31 whose edge portion is positioned at the joining position by the positioning member 5 according to the first aspect on the carrier 1.
Is a plate material butt-joining device provided with a pressing member 8 that presses the sheet material from above to fix the plate material 31 with the edge positioned at the joining position by the positioning member 5 on the carriage 1. The pressed state of the pressed pressing member 8 results in a fixed state. Accordingly, the edge of the conveyed plate 32 can be automatically butted against the edge of the plate 31 which is positioned at the joining position and thus fixed.

[0011] Further, the invention according to claim 3 is based on claim 2.
The plate material butt-joining apparatus described in FIG.
As shown in FIG. 3, the pressing member 8 is provided with the plate member 31 which is positioned at the joining position by the positioning member 5 on the transfer table 1 and is fixed by the pressing of the pressing member 8. It is characterized in that a regulating member 18, for example, a stopper plate is movably provided for regulating the edge of the other plate material 32 to be conveyed from riding on the edge. For example, as the regulating member, a stopper plate may be used, but a blocking member may be used. Further, the movable means, for example, by moving the regulating member forward and backward in the horizontal direction using an air cylinder unit assembled to the pressing member. The driving source is not limited to the air cylinder unit, but may be a hydraulic cylinder. It may be based on a unit, an electric motor, a gear mechanism, or the like.

As described above, according to the third aspect of the present invention, the positioning member 5 of the first aspect is positioned on the transfer table 1 at the joining position by the pressing of the pressing member 8 of the second aspect. The plate member butt-joining device movably provided on the pressing member 8 according to claim 2 is provided with a regulating member 18 that regulates the edge portion of the conveyed plate member 32 from riding on the edge portion of the plate member 31 in the state. With respect to the edge of the plate 31 fixed to the joining position by the pressing member 8, the edge of the plate 32 to be conveyed is controlled by the restricting member 18 advanced from the pressing member 8 so as to climb up. Therefore, when the edge of the conveyed plate 32 is automatically butted against the edge of the plate 31 which has been positioned and fixed in the joining position, the plate 3 having a relatively small thickness is used.
Even if the end portions of the first and second end portions are mounted on each other, they can be accurately butted without getting on each other.

According to a fourth aspect of the present invention, there is provided the plate butt joining apparatus according to the third aspect, wherein, for example, as shown in FIG.
8, a second pressing member 22, for example, a configuration including a second pressing plate for pressing the plate material 32 in a state where the edge portion is controlled to climb up from above to a fixed state. I have. For example, the second pressing member includes a second pressing plate.
An elastic pad material or the like may be used. Further, the pressing from above is to fix the plate material on the carrier, and a second pressing member arranged above the carrier is used, for example, by using an air cylinder unit assembled on a side surface of the carrier. The drive source is not limited to the air cylinder unit, but may be a hydraulic cylinder unit, an electric motor, a gear mechanism, or the like.

As described above, according to the fourth aspect of the present invention, the regulating member 18 according to the third aspect is provided on the transfer table 1.
The plate material butt-joining device provided with the second pressing member 22 that presses the plate material 32 in the state where the edge portion is controlled to climb up from above to fix the plate material 32 from above. The plate member 32 thus fixed is fixed by the second pressing member 22 that has descended from above, and the edges of the plurality of plate members 31 and 32 abut against each other. Accordingly, when the edge of the conveyed plate 32 is automatically butted against the edge of the plate 31 which is positioned at the joining position and is fixed, the thickness of the plate 31, 31 having a relatively small thickness is reduced. Even the edge portions can be accurately butted against each other in a fixed state without climbing each other.

[0015] The invention according to claim 5 provides the invention according to claim 4.
The plate material butt-joining apparatus described in FIG.
As shown in FIG.
A first operation mode (b) in which the edge of the abutment comes into contact with the positioning member 5 protruded from below to position the edge at the joining position. A second operation mode (c) in which the plate 31 whose edge is positioned at the joining position by the positioning member 5 is fixed by pressing the pressing member 8 which is moved downward from above; With respect to the edge of the plate 31 fixed in the second operation mode by the pressing of the pressing member 8, the edge of the other plate 32 to be conveyed is moved forward from the pressing member 8. The restricted member 1
Third operation mode (d) in which the vehicle is put in the riding-restricted state according to FIG.
In the third operation mode, the plate member 32 in which the edge portion is controlled to climb up by the regulating member 18 is fixed by pressing the second pressing member 22 that is moved downward from above, A fourth operation mode (e) in which the edge portions of the plurality of plate members 31 and 32 are brought into abutting state with each other. For example, as a fifth operation mode thereafter, there is a step of joining butted edges of plate materials, and a joining apparatus that strikes a stapler with a driving machine is typical.

As described above, according to the fifth aspect of the present invention, in the first operation mode (b), the edge of the plate material 31 is joined to the transfer table 1 by the positioning member 5 according to the first aspect. And the second operation mode (c) follows.
Then, the plate material 31 whose edge is already positioned at the joining position is
In the third operation mode (d), the edge of the plate material 32 conveyed is fixed to the edge of the plate material 32 already fixed by the pressing member 8 in the third operation mode (d). In the fourth operation mode (e), the edge portion is already controlled by the regulating member 18 to be in the climbing-up restricted state by the regulating member 18 according to claim 3.
Is a plate material butt joining device in which the edge portions of the plurality of plate materials 31 and 32 are brought into abutting state with each other by fixing the plate material 31 by the second pressing member 22 according to the fourth aspect. After positioning at the joint position,
The plate 31 whose edge is positioned at the joining position can be fixed, and then the edge of the plate 31 which is already positioned at the joining position and is fixed, with respect to the edge of the other plate 32 Automatically abut against each other, even if the edge portions of the plate members 31 and 32 have relatively small thicknesses, it is possible to prevent the plate members 31 and 32 from riding on each other. The edges can be accurately butted in a fixed state.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a butt joining apparatus according to the present invention will be described below with reference to FIGS. First, FIG. 1 is a perspective view showing an external appearance of a main part on a carrier table, showing a plate butt joining apparatus as an example to which the present invention is applied, and FIG. It is an external appearance perspective view which showed the butting state of the edge parts. 3 shows an operation procedure of a main part by the plate material butt-joining apparatus of FIG. 1. FIG. 3 (a) is a schematic side view showing a immersion state of a positioning member, and FIG. FIG. 3 (c) is a schematic side view showing a fixed state by lowering the first pressing member, and FIG. 3 (d) is a regulating member. FIG. 3E is a schematic side view showing a state in which the edges of the plate material abut against each other in a fixed state in which the second pressing member is moved down in a regulated state by moving the second pressing member downward. .

In FIGS. 1 to 3, 1 is a carrier, 2 is a frame, 3 is a roller conveyor, 4 is a center plate, 5 is a stopper pin (positioning member), 6 is a stapler driving machine (joining device), 7 is a side guide plate, 8 is a first pressing plate (first pressing member), 1
3, 16 are air cylinder units (first pressing member driving source), 18 is a stopper plate (restriction member), 19 is an air cylinder unit (restriction member driving source), and 22 is a second
Pressing plates (second pressing members), 26 and 29 are air cylinder units (second pressing member driving sources), 31 and 32 are plate members, and 33 is an edge joining portion. The plate material butt joining apparatus to which the present invention is applied is, in the embodiment shown in FIG.
A stopper pin is provided on a transfer table 1 having roller conveyors 3, 3,... On a frame 2 for butt joining of plate members 31, 32, which are successively transferred from the left side on the roller conveyors 3, 3,. (Positioning member) 5, Stapler (joining device) 6, First pressing plate (First pressing member) 8, Stopper plate (Regulating member) 1
8, a second pressing plate (second pressing member) 22 and the like.

That is, the transport table 1 includes roller conveyors 3, 3,... On a frame 2, and a center plate 4 at the center of the roller conveyors 3, 3,. As described below, a plurality of (four in FIG. 1) stopper pins 5, 5,... Serving as positioning members for the plate material 31 first conveyed onto the conveyance table 1 are provided on the center plate 4 from below. It is built in and out. These stopper pins 5, 5,... Are synchronously moved up and down by an air cylinder unit (not shown) as a positioning pin driving source, and can protrude above the roller conveyors 3, 3,. It has become. A stapler 6 as a joining device is provided at the center of the transfer table 1, and the stapler 6 can travel along the center plate 4. Further, on one side of the frame 2 of the transfer table 1, side guide plates 7, 7 for positioning and guiding the side portions of the plate materials 31, 32 successively transferred from the left side are provided. ing.

A first pressing plate 8 serving as a first pressing member is provided near the center plate 4 above the transfer table 1 and near one side (right side in FIGS. 1 and 3 and left side in FIG. 2). Is provided. The first pressing plate 8 serves to fix the plate member 31 positioned by the stopper pins 5, 5,... On the roller conveyors 3, 3,. The air cylinder units 13 and 16 are mounted on the transfer table 1. That is, the first pressing plate 8 has a rising surface 9 and an upper surface cover plate 10 with its plate surface being a horizontal surface, and the first pressing plate 8 is provided with an arm 11 protruding from one end of the rising plate 9 and a frame 2 of the carrier 1. A piston rod 14 of an air cylinder unit 13 attached to a bracket 12 fixed on one side is connected.
Further, the first pressing plate 8 has an attachment piece 15 protruding from the other end of the rising plate 9 and an air cylinder assembled to a bracket (not shown) raised on the other side of the frame 2 of the carrier 1. Piston rod 17 of unit 16
Are connected.

As described later, the first pressing plate 8 incorporates a stopper plate 18 which is a regulating member for the plate material 32 which is conveyed onto the conveyance table 1 later. The stopper plate 18 has a vertical plate surface, and an air cylinder unit 19 is assembled to the first pressing plate 8 as a driving source of the regulating member. That is, as shown in FIG. 3, the air cylinder unit 19 is assembled on the upper cover plate 10 side with respect to the rising plate 9 of the first pressing plate 8, and projects forward from the rising plate 9 of the air cylinder unit 19. The central part of the stopper plate 18 is connected to the piston rod 20. Further, between the rising plate 9 of the first pressing plate 8 and the stopper plate 18, on both sides of the piston rod 20, the forward / backward movement of the stopper plate 18 driven by the air cylinder unit 19 is performed in parallel. Guide blocks 21 and 21 are provided. As shown in FIGS. 2 and 3 (b) to 3 (d), the stopper plate 18 is in contact with the stopper pins 5, 5,. The operation amount of the air cylinder unit 19 is set so that the air cylinder unit 19 moves forward to a position flush with the edge and is fixed.

A second pressing member as a second pressing member is provided above the carriage 1 near the other side of the center plate 4 (left side in FIGS. 1 and 3 and right side in FIG. 2).
A pressing plate 22 is provided. The second pressing plate 22 is for fixing the plate member 32 on the roller conveyors 3, 3,..., And the air cylinder units 26, 29 serving as the second pressing member driving source It is assembled. That is, the second pressing plate 22
Is the rising plate 23
The first pressing plate 8
As in the case of (1), a piston rod 27 of an air cylinder unit 26 attached to a bracket 25 fixed to one side of the frame 2 of the carrier 1 is connected to an arm 24 projecting from one end of the rising plate 23. I have. Further, the second pressing plate 22 includes the rising plate 2
3, a piston rod 30 of an air cylinder unit 29 mounted on a bracket (not shown) raised on the other side of the frame 2 of the carrier 1 on a mounting piece 28 protruding from the other end of the carrier 1.
Are connected.

Next, the edge joining portion 33 of the two plates 31, 32 by the plate butt joining apparatus based on the above configuration.
The automatic butt joining process will be described. First, in a state before the automatic butt joining process, as shown in FIG. 3A, the stopper pin 5 is at the immersion position with respect to the center plate 4, and both the first pressing plate 8 and the second pressing plate 22 are in contact with each other. The stopper plate 18 is in the raised position and the stopper plate 18 assembled to the first pressing plate 8 is in the retracted position. In such a state, the operator stops the plate member 31 that has been firstly conveyed from the left side in the drawing when the position exceeds the center plate 4 and waits. Then, as a first operation mode, as shown in FIG. 3B, a state in which the stopper pin 5 is made to protrude from the center plate 4 to above the roller conveyor 3 and the operator manually operates the plate material 31 Is brought into contact with the stopper pin 5, and the edge of the plate 31 is positioned at the joining position.

As a second mode of operation, as shown in FIG. 3C, the state where the first pressing plate 8 is moved down and the edge portion is already positioned at the joining position by the stopper pin 5 is set. The pressed plate member 31 is pressed from above by the first pressing plate 8 to be in a fixed state. Further, as a third operation mode, as shown in FIGS. 2 and 3D, the stopper plate 18 is advanced from the first pressing plate 8 along the upper surface of the plate 31 to move the end of the plate 31. In the fixed state at a position flush with the edge, the edge of the plate 31 already fixed by the pressing of the first pressing plate 8 is moved from the left side in the drawing to the next plate 32. The rising state of the edge portion is defined as a restricted state. In this case, as shown in FIG.
Is moved downward to return to the center plate 4 immersion position.

As a fourth operation mode, as shown in FIGS. 2 and 3E, the second pressing plate 22 is moved down, and the edge portion is already moved by the stopper plate 18. Is pressed from above by the second pressing plate 22 to be in a fixed state, and the edge joining portions 33 of the two plate members 31 and 32 are brought into contact with each other. In addition, such a second
In parallel with the lowering operation of the pressing plate 22, the stopper plate 18 is caused to retreat to the first pressing plate 8 along the upper surface of the plate 31 as shown in FIG.
As a final fifth operation mode, the stapler (shown in FIG. 1) moves the stapling machine 6 shown in FIG. ) Is sequentially applied to form a joined state.

As described above, according to the plate material butt-joining apparatus of the embodiment, the edge of the plate material 31 which is first conveyed on the roller conveyor 3 on the transfer table 1 is manually stopped by the stopper pin 5. After the plate 31 is positioned at the joining position by the first pressing plate 8
In this way, the stopper plate 18 prevents the edge of the plate 32 that is subsequently conveyed on the roller conveyor 3 from climbing over the edge of the plate 31 that has been positioned and fixed. The edge joining portions 33 of the two board members 31 and 32 whose riding-up is restricted can be brought into abutting state. Accordingly, the edge joining portions 33 of the two plate members 31 and 32 that have been accurately butted together can be joined by a stapler in the next step.

In the above-described embodiment, the butt-joining apparatus for the plate material used as the face material of the wooden panel is used. However, the present invention is not limited to this, but the butt-joining of the plate material for other uses. It may be a device. In the embodiment, the edges of the two plates are butt-joined. However, the edges of the two plates may be aligned and joined to the edge of one plate. Further, the number of plate members to be butt-jointed is also arbitrary, and it goes without saying that the specific detailed structure and the like can be appropriately changed.

[0028]

As described above, according to the plate material butt-joining apparatus according to the first aspect of the present invention, the edge of the plate material abuts against the positioning member that has protruded on the carrier table. Since the plate material edge can be positioned at the joining position, the edge of the conveyed plate material can be automatically butted against the edge of the plate material positioned at the joining position in this manner.

According to the plate butt joining apparatus according to the second aspect of the present invention, the edge portion has already been positioned at the joining position by the pressing member that has moved down on the carrier table according to the first aspect of the present invention. Since the plate material can be fixed, the edge of the conveyed plate material can be automatically butted against the edge of the fixed plate material positioned and fixed at the joining position.

Further, according to the plate material butt joining apparatus according to the third aspect of the present invention, the edge of the plate material already fixed at the joining position according to the second aspect of the present invention is pressed from the pressing member on the carrier table. The forward-moving restricting member can restrict the edge of the conveyed plate from climbing up, so that the edge of the conveyed plate is fixed relative to the edge of the plate positioned and fixed at the joining position. When the parts are automatically butted, even if the edge parts of the plate material having a relatively small thickness can be accurately butted without riding on each other.

According to the plate material butt-joining device according to the fourth aspect of the present invention, the plate material of which the edge is prevented from climbing up by the invention according to the third aspect of the present invention is moved down on the carrier table. Since the edges of the plurality of plate materials can be abutted against each other by being fixed by the second pressing member, the edge of the plate material to be conveyed is automatically adjusted with respect to the edge of the fixed plate material positioned and fixed at the joining position. When butt-matching, even if the edges of the plate material are relatively thin,
They can be accurately butted against each other without climbing each other. Therefore, the edge portions of the plate material having a relatively small thickness can be accurately butted and joined.

According to the plate material butt-joining apparatus according to the fifth aspect of the present invention, after the edge of the plate is positioned at the bonding position, the plate having the edge positioned at the bonding position is fixed. On the other hand, when the edge of another plate is automatically butted against the edge of the plate already positioned and fixed at the joining position, the edges of the plate having a relatively small thickness are joined together. In this case, it is possible to restrict climbing from each other, and furthermore, it is possible to accurately abut the edge portions of the plate materials whose climbing has been restricted in a fixed state. Therefore, the edge portions of the plate material having a relatively small thickness can be accurately butt-joined in the next step.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a plate butt-joining apparatus as an example to which the present invention is applied, showing a main part on a carrier.

FIG. 2 is an external perspective view showing a state in which plate material edges are butted by the plate material butt joining device of FIG. 1;

3A and 3B are diagrams showing an operation procedure of a main part by the plate material butt-joining apparatus of FIG. 1, wherein FIG. 3A is a schematic side view showing a state where a positioning member is immersed, and FIG. The schematic side view showing the state, FIG.
FIG. 4D is a schematic side view showing a fixed state by lowering the pressing member, FIG. 4D is a schematic side view showing a restricted state by moving the regulating member forward, and FIG. It is the schematic side view which showed the butting state of the edge part of a board material by the state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance table 3 Roller conveyor 5 Positioning member 6 Joining device 8 1st pressing member 13, 16 1st pressing member drive source 18 Restriction member 19 Restriction member drive source 22 2nd pressing member 26, 29 2nd pressing member drive source 31, 32 plate material 33 edge joint

Claims (5)

[Claims] 1. A plate butt joining apparatus comprising: a transfer table for transferring a plurality of plate members; and a joining device for joining mutually butted edges of the plurality of plate members on the transfer table. On the transfer table, abuts against the edge of the plate material,
A plate butt joining apparatus, comprising a positioning member for positioning the end portion at a joining position so as to be able to protrude and retract from below. 2. A pressing member for pressing said plate material, whose edge is positioned at said joining position by said positioning member, from above onto said transfer table to be in a fixed state. The plate material butt-joining device according to claim 1, characterized in that: 3. The pressing member is positioned on the transfer table at the joining position by the positioning member, and is fixed to the edge of the plate material fixed by the pressing of the pressing member. 3. The plate butt joining apparatus according to claim 2, wherein a restricting member for restricting an edge portion of the other plate material to be conveyed from climbing is movably provided. 4. A second pressing member is provided on the transfer table for pressing the plate material, the edge of which has been restricted from climbing up by the restricting member, into a fixed state from above. The plate butt joining apparatus according to claim 3, characterized in that: 5. A first operation in which said edge portion of said plate material is brought into contact with said positioning member which has been protruded from below on said transfer table, and said edge portion is positioned at said joining position. And a second operation in which the plate member, in which the edge portion is positioned at the joining position by the positioning member in the first operation mode, is fixed by pressing the pressing member that is moved downward from above. With respect to the edge of the plate material fixed by the pressing of the pressing member in the second operation mode, the edge of the other plate to be conveyed is advanced from the pressing member. A third operation mode in which the board is controlled to climb up by the regulating member; and the plate member in which the edge portion is in the climbing up control state by the regulating member in the third operation mode is moved down from above. The plate material butt joining apparatus according to claim 4, further comprising: a fourth operation mode in which the edge portions of the plurality of plate materials are brought into abutting state with each other in a fixed state by the pressing of the second pressing member.