JP7240818B2 - drying equipment - Google Patents

Description

The present invention relates to drying equipment.

2. Description of the Related Art In a manufacturing line, there is a drying device that dries a coated member to be coated.
For example, it has a horizontal conveyor provided in multiple stages in the height direction for conveying the member to be coated in the horizontal direction in the drying furnace, and a vertical circulation conveyor for conveying the member to be coated between the upper and lower horizontal conveyors. A drying device is known (see, for example, Patent Document 1).
In the drying apparatus of Patent Document 1, the member to be coated is transferred between two conveyor systems, one for vertical and one for horizontal, to increase the residence time of the member to be coated in the drying furnace.
Furthermore, for example, there is a drying device that increases the residence time of the members to be coated in the drying furnace by stopping the operation of the conveying unit in the drying furnace until a new group of pallets on which the members to be coated are loaded is loaded into the drying line. known (see, for example, Patent Document 2).

JP-A-1-254275 JP-A-1-194971

The members to be coated that have been dried by the drying device on the conveying path are conveyed from the drying device to a further downstream step, for example, a step of stacking and bundling a plurality of the members to be coated for shipping.
By the way, when binding the members to be coated, there are cases where the members to be coated are stacked in consideration of the cross-sectional shape of the plate materials to be coated, and there are cases where it is desired to bind the group of members to be coated after stacking them with the coated surface facing downward. . Under such circumstances, there is a demand for reversing the conveyed member to be coated so that the coated surface of the member to be coated faces downward at some point on the conveying route between the coating process and the binding process. Although it is conceivable that the worker reverses the member to be coated, it is desirable to avoid the worker's reversing work in consideration of the worker's safety and work burden. In addition, although it is conceivable to provide a reversing device separately on the conveying route, it is desirable to avoid providing a reversing device separately from the viewpoint of equipment cost.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a drying apparatus for increasing the drying time of a coated member in a drying process and for reversing the coated surface of the member to be coated during transportation. for the purpose.

In order to solve the above problems, the present invention provides a drying apparatus provided on a conveying route for conveying a member to be coated having one surface coated, wherein the member to be coated is positioned at a height relative to the conveying route. and a reciprocating section for reciprocating in a vertical direction, the reciprocating section having an outward section for conveying the member to be coated in the height direction from the conveying path with the one surface facing upward, and an outward section for conveying the member to be coated in the height direction from the conveying path. A return section in which the member to be coated is conveyed with the one surface facing downward in the height direction, a turning section in which the member to be coated is conveyed with the one surface reversed from the outward section to the return section, characterized by having

Further, the reciprocating section includes a moving member that moves from the forward section to the returning section across the turn-around section, and a direction intersecting the height direction that is provided at a predetermined distance from the moving member. and a plurality of pairs of support members protruding toward the first direction, wherein the pair of support members are provided upstream in the conveying direction of the member to be coated, and support the member to be coated in the outward section It is preferable to have a support member and a second support member provided downstream in the conveying direction of the member to be coated and supporting the member to be coated in the return section.

Further, among the plurality of pairs of support members in the outward section, the first support member of the pair of support members on the downstream side in the transport direction and the pair of support members on the downstream side in the transport direction It is preferable that the second support member of the pair of support members on the upstream side in the transport direction move side by side at the same position in the height direction.

Moreover, it is preferable that the support member is formed in a bar shape.

Further, it is preferable that a plurality of reciprocating portions are provided at predetermined intervals along the longitudinal direction of the member to be coated, and a driving portion is provided for driving each of the reciprocating portions in synchronization with each other.

Moreover, it is preferable to provide a transfer section that transfers the carried-in member to be coated from the transfer path to the reciprocating section in the outward section, and transfers the member from the reciprocating section to the conveying path in the return section.

According to the present invention, in the drying process, it is possible to obtain drying time for the coated member to be coated and to reverse the coated surface of the member to be coated during transportation.

FIG. 4 is a schematic diagram showing the process by which a painted deck plate is carried in and out of a drying apparatus; (a) is a perspective view of a deck plate viewed from the coated surface side, and (b) is a perspective view showing a state in which a plurality of deck plates are stacked. It is a schematic front view for demonstrating the structure of the reversing machine of a drying apparatus. FIG. 4 is a schematic perspective view for explaining the configuration of a reversing machine of the drying device; It is a schematic side view for demonstrating the structure of a drying apparatus.

Preferred embodiments of the present invention will be described with reference to the drawings. It should be noted that the embodiment shown below is merely an example, and can take various forms within the scope of the present invention.

FIG. 1 is a schematic diagram showing the process by which a painted deck plate is carried in and out of a drying apparatus. FIG. 2 is a diagram showing a deck plate, (a) is a perspective view of the deck plate viewed from the back (painted surface) side, and (b) is a perspective view showing a state in which a plurality of deck plates are stacked. be. FIG. 3 is a schematic front view for explaining the configuration of the reversing machine of the drying device. FIG. 4 is a schematic perspective view for explaining the configuration of the reversing machine of the drying device. FIG. 5 is a schematic side view for explaining the configuration of the drying device.

For example, a long member such as a deck plate is manufactured through various manufacturing processes in a manufacturing line. For example, a deck plate is manufactured by first sending out a plate material such as a steel plate that is formed into a deck plate from a coil, and then undergoing processing steps such as roll forming, embossing, cutting, induction heating, painting, and drying. Finally, they are stacked, bundled, and shipped.

As shown in FIG. 1, a drying apparatus 1 according to the present embodiment is an apparatus for drying a deck plate Dp whose back surface (one surface) has been coated by a coating apparatus Cm. is placed between.

For convenience of explanation, first, the configuration (shape) of the deck plate Dp will be explained using FIG. The deck plate Dp is used, for example, in the floor structure of a building. Therefore, the back surface bs needs to be coated for rust prevention.
For example, as shown in FIG. 2A, the deck plate Dp is provided with flat surface portions fp at the central portion and both end portions in the width direction (transverse direction) when viewed from the rear surface bs. The deck plate Dp has convex portions sp pushed out toward the surface us between the flat surface portions fp at the central portion and the flat surface portions fp at both ends.
As shown in FIG. 2(b), the deck plates Dp are bundled with the front surface us facing upward, for example, 20 or more. Considering the stability of the deck plates Dp during transportation, the bundle of the deck plates Dp must be transported with the back surfaces bs of the deck plates Dp facing downward and the flat surface portions fp being grounded. That is, the deck plate Dp is transported with the coated surface cs facing downward.
1, 3 and 5, the deck plate Dp is simply shown.

<Configuration of drying device>
As shown in FIG. 1, a deck plate (member to be coated) Dp is coated by a coating device Cm. Specifically, as described above, when the deck plate Dp is used, the back surface (one surface) bs exposed from the concrete is painted to become the painted surface cs.
The deck plate Dp after coating is dried in the drying device 1 in order to prevent the coating film from peeling off during transportation due to the semi-drying of the coating film. The coated deck plate Dp is conveyed toward the drying device 1 on the conveying path in the manufacturing line with the coated surface cs facing upward. The configuration of the drying apparatus 1 will be described below with reference to FIGS. 3 to 5. FIG.

The drying device 1 is provided on a conveying route from the coating device Cm to the downstream process in the production line. In the drying device 1, the transport path is provided with the drying device 1 interposed therebetween. As shown in FIG. 3, the transport path includes a transport path (right side in the figure) Ti for transporting the deck plate Dp into the drying device 1 from the upstream side in the production line, and a transporting route Ti for transporting the deck plate Dp from the drying device 1 to the downstream side. It has an unloading route (left side in the figure) To.
The drying apparatus 1 includes an inversion machine (reciprocating section) 10 and a transfer machine 20 .

(Reversing machine)
A plurality of reversing machines 10 are provided at predetermined intervals over at least the length of the deck plate Dp, and extend in the height direction. The plurality of reversing machines 10 transport the deck plate Dp carried into the drying device 1 upward in the height direction, reverse the deck plate Dp at the vertex portion, transport it downward, and carry it out of the drying device 1 .
The reversing machine 10 has, for example, a circulating conveyor (moving member) for vertically reciprocating the deck plate Dp with respect to the carrying-in route Ti and the carrying-out route To. It circulates with the carry-out route To. The reversing machine 10 includes an outward section 10a that conveys the deck plate Dp upward from the loading route Ti, a folding section 10b that turns the conveying direction from top to bottom, and a return section that conveys the deck plate Dp downward toward the unloading route To. and a section 10c.
The reversing machine 10 also has a turning section (not shown) for changing the conveying direction from downward to upward.

The reversing machine 10 is provided continuously on a conveyor and has a plurality of transport bodies 11 for transporting the deck plate Dp from the carry-in route Ti to the carry-out route To. The conveying body 11 conveys the deck plate Dp in the circulation path so that the coating surface cs always faces the downstream side in the circulation direction. That is, the deck plate Dp faces upward in the forward section 10a and downward in the return section 10c.
Since each carrier 11 can support and carry the deck plates Dp, in the reversing machine 10, a plurality of deck plates Dp are carried stepwise vertically.

The carrier 11 has a pair of support members 12 and 13 that support the deck plate Dp at both ends in the circulation direction. The support members 12 and 13 are rod-shaped members, specifically cylindrical members, and project laterally from the reversing machine 10 in the direction intersecting the height direction, that is, toward the carry-in route Ti in the forward section 10a. , and protrudes toward the unloading route To in the return section 10c.
Of the pair of support members 12 and 13 in each conveying body 11, the support member (first support member) 12 on the upstream side in the circulation path is used when the deck plate Dp is conveyed upward in the forward section 10a. A supporting member (second supporting member) 13 which supports Dp on the side of the surface us and is located on the downstream side supports the deck plate Dp on the side of the coated surface cs when conveying the deck plate Dp downward in the return section 10c. To support.

The support member 12 and the support member 13 are provided on different sides of the carrier 11 with respect to the center line x. For example, the support member 12 is located on the right side with respect to the center line x, and the support member 13 is located on the left side with respect to the center line x.
In the forward section 10a and the return section 10c of the reversing machine 10, the support member 12 of the transport body 11 on the downstream side in the transport direction and the support member 13 of the transport body 11 on the upstream side in the transport direction with respect to the transport body 11. and move side by side at the same position in the height direction.
In other words, in the forward section 10a and the return section 10c of the reversing machine 10, the position of the support member 13 on the upstream conveying body 11 among the adjacent conveying bodies 11 is the position of the supporting member 12 on the downstream conveying body 11. The position overlaps with the transport body 11 in the width direction.

The deck plate Dp in the reversing machine 10 is supported between a pair of support members 12 and 13 in one conveying body 11 . The deck plate Dp of the conveying bodies 11 provided continuously with each other is supported by the supporting member 12 of one conveying body 11 and the supporting member 11 of the conveying body 11 located upstream of the one conveying body 11 in the forward section 10a. It is supported by the member 13, and in the return section 10c, it is supported by the support member 13 of one transport body 11 and the support member 12 of the transport body 11 located upstream of the one transport body 11.

The positions of the conveying bodies 11 in the reversing machines 10 are aligned so that the deck plates Dp to be conveyed are conveyed in a substantially horizontal state.
The reversing machines 10 arranged in a line have a common drive shaft (drive unit) 14, and the conveying bodies 11 of the respective reversing machines 10 move in synchronization with the rotation of the drive shaft 14. there is The timing of driving (rotation) of the drive shaft 14 is adjusted in accordance with the timing of loading the deck plate Dp into the reversing machine 10 by the transfer device 20 and unloading the deck plate Dp from the reversing machine 10. , is driven intermittently.

(transporter)
The transfer device 20 transfers (loads) the deck plate Dp carried into the drying apparatus 1 from the carry-in path Ti to the reversing machine 10, and transports (loads) the deck plate Dp which has reciprocated the reversing machine 10 in the height direction from the reversing machine 10. Transfer (unload) to the carry-out route To.
The transporter 20 is provided below the carry-in route Ti for carrying the deck plate Dp into the drying device 1 and the carry-out route To for carrying it out of the drying device 1 . The transfer device 20 can move laterally with respect to the reversing device 10 and can move vertically with respect to the carry-in route Ti and the carry-out route To. The transfer of the deck plate Dp from the carry-in route Ti to the reversing machine 10 by the transfer device 20 and the transfer of the deck plate Dp from the reversing machine 10 to the unloading route To are performed at the same time.
The transporter 20 has a loading section 21 and an unloading section 22 . The loading unit 21 lifts the deck plate Dp conveyed to the drying device 1 from the carry-in route Ti and transfers it to the reversing machine 10 . The loading section 22 transfers the deck plate Dp conveyed by the reversing machine 10 to the carry-out route To. In addition, the transfer machine 20 is provided between the adjacent reversing machines 10, and each transfer machine 20 is driven synchronously.

<Description of the drying process>
Next, the drying process in the drying device 1 will be described. The deck plate Dp coated by the coating device Cm is transported to the drying device 1 with the coated surface cs facing upward. When the deck plate Dp is laid across a plurality of reversing machines 10 of the drying apparatus 1, the transfer machine 20 moves to the carry-in route Ti side, and the loading section 21 lifts the deck plate Dp from below. At the same time, the load section 22 lifts the deck plate Dp supported by the support members 12 and 13 from below.
Next, the transfer device 20 moves to the carry-out route To side, places the deck plate Dp on the support members 12 and 13 of the carrier 11 on the outbound section 10a side, and places the deck plate Dp on the carry-out route To side on the return section 10c side. Place the deck plate Dp on To.

When the placement of the deck plate Dp on the support members 12 and 13 in the outward section 10a and the placement of the deck plate Dp on the carry-out route To in the return section 10c are completed, the transfer device 20 moves to the carry-in route Ti side. Move back to starting position. The return movement of the transporter 20 to the starting position triggers the rotation of the drive shaft 14 by a predetermined angle to move the carrier 11 in the circulation direction. In the outward section 10a, the deck plate Dp moves upward as the carrier 11 moves. In the return section 10c, the deck plate Dp moves downward as the carrier 11 moves. In the turnaround section 10b, the deck plate Dp moves laterally from the carry-in route Ti side to the carry-out route To side as the carrier 11 moves.
As a result, the new transport body 11 not supporting the deck plate Dp reaches the loading position of the deck plate Dp in the outward section 10a, and the new transport body 11 supporting the deck plate Dp in the return section 10c. to reach the unloading position.

By repeating the intermittent movement of the carrier 11 stepwise a plurality of times, the deck plate Dp reaches the turning section 10b of the reversing machine 10 from the loading position in the forward section 10a. In the outward section 10a, the deck plate Dp is supported by the support member 12 of the transport body 11 located downstream and the support member 13 of the transport body 11 located upstream among the transport bodies 11 adjacent to each other. When the conveying body 11 located downstream reaches the turn-back section 10b from the outward section 10a, the support member 12 of the conveying body 11 located downstream protrudes sideways as the conveyor of the reversing machine 10 moves. , gradually protrudes upward toward the turning section 10b, and conveys the deck plate Dp from the forward section 10a to the turning section 10b.

Thus, the deck plate Dp supported by the support members 12 of the one conveying body 11 in the forward section 10a is lifted and overturned by the supporting members 12 and 13 accompanying the movement of the one conveying body 11 in the return section 10b. Due to the action of inertia force, it moves from supporting member 12 to supporting member 13 so as to fall.
Along with the movement of the conveyor, the carrier 11 moves from the return section 10b to the return section 10c while supporting the deck plate Dp on the support member 13. , moves downward while supporting the deck plate Dp together with the support member 12 of . That is, in the return section 10c, the deck plate Dp is supported by the support member 12 of the conveying body 11 positioned on the downstream side and the supporting member 13 of the conveying body 11 positioned on the upstream side among the conveying bodies 11 adjacent to each other. be done.

That is, while the deck plate Dp passes through the outward section 10a, the turnaround section 10b, and the return section 10c as the conveying body 11 moves, the deck plate Dp is supported by the one conveying body 11 from the supporting member 12 to the supporting member 13. , and the supporting surface on the deck plate Dp is reversed from the unpainted surface (surface us) to the painted surface cs. In the reversing machine 10, the deck plate Dp always faces the downstream side in the circulation direction with the coating surface cs.

According to the drying apparatus 1 as described above, the reversing machine 10 moves the deck plate Dp coated in the coating apparatus Cm up and down from the conveying path (carrying-in path Ti and carrying-out path To) in the height direction. It is possible to obtain time for drying the coated surface cs in . As a result, it is possible to prevent peeling of the coating film due to the coating surface cs not being completely dried during transportation of the deck plate Dp.
Furthermore, since the reversing machine 10 extends in the height direction, the space in the height direction in the production line can be utilized for drying, and the deck plate Dp is conveyed in order to increase the conveying distance in the horizontal direction. No need to extend the route.

Furthermore, according to the reversing machine 10, while the deck plate Dp is being dried, the deck plate Dp is reversed in the reversing section 10b by moving the carrier 11 in the circulation direction. , facing downwards when unloading. As a result, the deck plate Dp does not require a reversing operation, a reversing device, or the like for directing the coating surface cs downward in the conveying route downstream of the drying device 1, and the deck plate Dp carried out from the drying device 1 can be used as it is. , several tens of sheets can be stacked and bundled with the coated surface cs facing downward, and can be shipped in a stable posture during transportation.

In addition, since the pair of support members 12 and 13 that support the deck plate Dp are provided on the carrier 11 so as to face each other along the circulation direction, the deck plate Dp can be smoothly reversed in the turn-back section 10b. can.

In addition, in the adjacent conveying bodies 11, the supporting member 12 of the conveying body 11 on the downstream side and the supporting member 13 of the conveying body 11 on the upstream side move side by side in the height direction of the reversing machine 10. The deck plate Dp can be stably supported by the two support members 12 and 13 in the forward section 10a and the return section 10c.

Further, since the support members 12 and 13 are cylindrical members, the installation area with the deck plate Dp can be reduced. Since the contact area between the coated surface cs of the deck plate Dp and the support member 13 in the return section 10c can be minimized, damage to the coated surface cs due to contact with the support member 13 can be prevented.

<Others>
It should be noted that the present invention is not limited to the above-described embodiments, and can be appropriately modified within the scope of the present invention. For example, in the above-described embodiment, the support members 12 and 13 are cylindrical members, but the cross-sectional shape is not limited to circular and may be polygonal or the like. It may be made of steel.

1 drying device 10 reversing machine (reciprocating part)
10a outbound section 10b return section 10c return section 11 carrier (moving member)
12 support member (first support member)
13 support member (second support member)
14 drive shaft (drive unit)
20 transfer machine 21 loading section 22 unloading section Dp deck plate cs painted surface (one surface)

Claims (5)

A drying device provided on a conveying route for conveying a member to be coated having one surface coated,
A reciprocating part for reciprocating the member to be coated in the height direction with respect to the conveying path,
The reciprocating part is
an outward path section for transporting the member to be coated in the height direction from the transport path with the one surface facing upward;
a return path section in which the member to be coated is conveyed in the height direction toward the conveying path with the one surface facing downward;
a turn-around section for conveying the member to be coated from the forward section to the return section with the one surface reversed;
a plurality of moving members that move from the forward section to the return section across the turn-around section;
are provided on the moving members at predetermined intervals in the length direction of the member to be coated while the member to be coated is supported in the height direction, and intersect the height direction. a plurality of pairs of support members having a first support member and a second support member protruding away from the moving member in a direction toward the moving member;
In the one moving member, the first support member is provided upstream with respect to the second support member in the conveying direction of the member to be coated, supports the member to be coated in the forward section, A second support member is provided downstream of the first support member in a conveying direction of the member to be coated, and supports the member to be coated in the return section,
A drying apparatus, wherein the member to be coated is supported between the first support member and the second support member in each pair of support members. In one of the plurality of paired support members in the outward section, in one moving member, the first support member of the pair of support members located downstream in the transport direction and the one moving member In the moving member on the downstream side, the second supporting member of the pair of supporting members on the upstream side in the conveying direction with respect to the pair of supporting members is arranged at the same position in the height direction. 2. The drying apparatus according to claim 1 , characterized in that it moves by 3. The drying apparatus according to claim 1 , wherein said support member is formed in a bar shape. A plurality of reciprocating portions are provided at predetermined intervals along the longitudinal direction of the member to be coated,
4. The drying apparatus according to any one of claims 1 to 3 , further comprising a driving section for driving each of said reciprocating sections in synchronization with each other. It is characterized by comprising a transfer section that simultaneously transfers the carried-in member to be coated from the transfer path to the reciprocating section in the outward section and transfers it from the reciprocating section to the conveying path in the return section. 5. Drying apparatus according to any one of claims 1-4 .

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