JP4800844B2 - Press structure of horizontal multi-stage press - Google Patents

Description

  The present invention relates to a press structure of a horizontal multi-stage press apparatus that heats and presses a plate to be processed.

  In a multi-stage press device (hot press) that heats and presses a plate material (processed plate material) such as plywood, decorative board, fiber board, particle board, veneer veneer, etc., to a predetermined plate thickness, a plurality of pieces held in an upright state A horizontal type is known in which a plurality of plate materials are carried between heated plates arranged and heated and pressed. This horizontal method (horizontal hot press) is a plate material and hot plate compared to the vertical method (vertical hot press) in which plate materials and hot plates held in the horizontal direction are alternately stacked in the vertical direction and heated and pressed. It has the advantage that molding unevenness (uneven thickness) due to its own weight is less likely to occur.

  Then, the applicant of the present application is such that in such a horizontal hot press, the side opposite to the hot plate (the back side) is opposite to the side facing the hot plate in the grid structure (press plate) that is open on the side facing the hot plate (front side). ) Is engraved, and it is proposed to absorb thermal strain (thermal expansion) generated by the heat generated in the hot plate being transmitted to the pressing plate (see Patent Document 1). According to Patent Document 1, the thermal strain generated in the pressing plate can be absorbed (the thermal strain can be released) by the slit provided in the pressing plate, and the thermal deformation of the pressing plate can be suppressed. Thickness unevenness or the like is less likely to occur in the processed plate material.

Japanese Patent Publication No. 4-14601

  However, such a slit is a structure for absorbing (dissipating) the thermal strain generated in the pressing board under the influence of heat, and does not make it difficult to transmit the generated heat itself to the pressing board. For this reason, if the operating temperature varies due to changes in the heating temperature, the number of sheets, and the like of the processed plate material, defective products such as uneven thickness may occur (yield deteriorates) in the processed plate material. In particular, when a large number of (multi-stage) plate materials (hot plates) are heated and pressurized simultaneously to improve efficiency, a large amount of heat supplied to the hot plate is transmitted to the press plate, and the thermal strain is absorbed by the slits. If this is not possible, there is a risk of causing thermal deformation such as bending (warping) or twisting (twisting) in the pressing plate. In addition, the pressure plate is open on the side facing the heat plate (contact side), so it is convenient for heat dissipation, but if the number of heat plates increases (the number of steps) as described above, the strength is insufficient when pressing. There is also a risk that the pressing plate will be enlarged or a special reinforcing structure will be required so as not to invite the pressure. Furthermore, since the outer surface of the outermost heat plate repeatedly receives the pressing force from the pressing plate during heating and pressurization, mechanical deformation (bending, etc.) is likely to occur and there is a possibility that it must be frequently replaced.

  The problem of the present invention is that the heat generated in the hot plate is not easily transmitted to the press plate, and the structure of the press plate is devised, so that even if the number of heating and pressurization steps (the number of hot plates) increases, It is an object of the present invention to provide a press structure of a horizontal multi-stage press apparatus that can maintain the durability of the pressing plate and the outermost hot plate.

Means for Solving the Problems and Effects of the Invention

In order to solve the above problems, the press structure of the horizontal multi-stage press device of the present invention is:
In order to heat and press a plurality of processed plate materials held in an upright state and carried in the conveying direction along the pressed surface, they are arranged to be movable along the thickness direction of the processed plate material. A plurality of hot plates, and a pair of pressing plates arranged so that at least one of them is movable in the pressing direction in order to press the plurality of processed plate materials from the outside in the thickness direction via the plurality of hot plates A press structure of a horizontal multi-stage press device comprising:
The pressing plate has an outer frame that forms a hollow inner space, a face plate that covers the side of the outer frame that faces the hot plate, and a hot plate pressing surface of the face plate that can contact and separate from the hot plate. A heat insulating portion fixedly arranged in a form, and a partition portion that is fixed to the back surface opposite to the hot plate pressing surface of the face plate and the inner surface of the outer frame and partitions the internal space,
At the time of heating and pressurizing the pair of pressing plates in the pressing direction, while the heat insulating portion comes into contact with the hot plate, the heat generated in the hot plate is prevented or suppressed from being transmitted to the face plate. When the pressure is released to open the pair of pressing plates in the pressing direction, the heat insulating portion is separated from the hot plate, so that heat generated in the hot plate is dissipated into the air and transmission to the face plate is avoided. ,
A fixed frame for mounting a drive cylinder having a ram for driving the pressing plate in the pressing direction is provided, and the ram of the driving cylinder corresponds to the fixed frame and the pressing plate according to the size of the plate to be processed. It is possible to adjust the movement in the standing direction,
When viewed from the pressing direction, a plurality of partitioning portions of the pressing plate are formed along the conveying direction so as to extend in the standing direction, and among the partitioning portions formed in the rising direction, the ram is formed. The receiving partition is formed so that the width in the transport direction is larger than the width of the other partition .

  In this way, the heat insulating action by the heat insulating part during heating and pressurization, while the heat release from the hot plate to the air at the time of pressurization release is promoted, so that the heat generated in the hot plate is difficult to be transmitted to the pressing plate. Thermal deformation such as bending (warping) and twisting (twisting) is unlikely to occur in the board (face plate). Further, the face plate and the partition (for example, rib wall) are reinforced to increase the strength (rigidity) of the press plate and hardly cause mechanical deformation. Therefore, even if the pressing plate is not enlarged or a special reinforcing structure is not used, thickness unevenness or the like hardly occurs in the processed plate material after heating and pressing. In addition, even if the operating conditions change due to changes in the heating temperature, pressing force, number of sheets, etc. of the plate to be processed, the yield is unlikely to deteriorate (defects are unlikely to occur), so the durability of the press panel is maintained over a long period of time. can do. In addition, since the heat insulation part waits in the position away from the hot plate at the time of releasing pressure and is not affected by the heat of the hot plate, deterioration due to heat is suppressed and heat insulation performance can be maintained for a long time.

  Furthermore, by receiving the outermost heat plate at the heat insulating part fixedly arranged on the face plate, even when the outer surface of the outermost heat plate repeatedly receives the pressing force from the pressing plate during heating and pressurization, mechanical deformation (deflection etc.) ) And the durability of the outermost hot plate can be maintained over a long period of time.

  Furthermore, when using a heat insulating member (for example, a laminated board) made of a polymer material (for example, glass fiber-containing epoxy resin) containing a curing agent for the heat insulating portion, the heat insulating portion prevents thermal deformation of the press panel. It is also possible to improve the mechanical strength (rigidity) of the pressing plate and the outermost hot plate.

  The heat insulating part is fixed to the hot plate pressing surface of the face plate by a fixing means such as a fastening member (for example, a bolt or a small screw) or a joining means (for example, an adhesive or a solvent). Further, the partition portion is fixed to the back surface of the face plate or the inner surface of the outer frame by a fixing means such as a joining means (for example, welding, welding), a fastening member (for example, a bolt or a machine screw).

  When such a press structure is viewed from the pressing direction, the face plate of the pressing plate is formed in a rectangular shape that is long in the conveying direction and short in the standing direction of the processed plate material, and the heat insulating portion is a rectangular shape that is long in the rising direction and short in the conveying direction. It is desirable that a plurality of the heat insulating plates be disposed along the transport direction with a gap having a predetermined width in the transport direction. The heat generated in the hot plate is also released from the gap and is less likely to be transmitted to the pressing plate, so that thermal deformation such as bending (warping) and twisting (twisting) in the pressing plate (face plate) is further less likely to occur. In addition, for example, since a plurality of vertically long heat insulating plates are arranged with a gap with respect to the face plate of the press plate (its hot plate pressing surface) formed in a horizontally long shape, the short side of the standing direction (vertical direction) of the face plate A plurality of heat insulating plates corresponding to the length may be prepared and fixed to the face plate with a predetermined gap. Therefore, compared with the case where a plurality of heat insulating plates corresponding to the length of the long side in the transport direction (lateral direction) are prepared, the initial cost required for material costs, fixing work, and the like can be relatively suppressed. Furthermore, when exchanging some of the damaged heat insulating plates, the running cost required for replacement work or the like can be relatively suppressed. In addition, the width of the heat insulating plate may be any of a case where it is formed wider than a width of the gap, a case where it is formed equivalently, and a case where it is formed narrowly.

  As an example, when viewed from the pressing direction, the width in the transport direction of each heat insulating plate constituting the heat insulating portion can be formed to be greater than the width of the gap. As a result, the function of receiving the outermost hot plate by the heat insulating plate (cushion function) is strengthened, the mechanical deformation (deflection) of the outermost hot plate is prevented, and the replacement frequency is made equal to other hot plates. It is also possible.

  In this case, in order to maximize the receiving function of the outermost hot plate at low cost and prevent mechanical deformation (bending, etc.), for example, the heat insulating plate is formed in a long and narrow strip shape (or string shape). And it is good to set the horizontal width of a heat insulating board to the range of 1-50 times the horizontal width of a clearance gap. In addition, when the horizontal width of the heat insulating plate is less than one times the horizontal width of the gap, the heat insulating plate receiving function (deflection preventing function) may not be sufficiently exhibited. On the other hand, when it is more than 50 times, there is a possibility that the heat dissipation effect from the gap cannot be obtained sufficiently, or the material cost of the heat insulating plate becomes expensive.

  Further, when viewed from the pressing direction, the partitioning portion of the pressing plate is formed in a lattice shape extending in the transporting direction and the standing direction over the entire back surface of the face plate, and the partitioning part in the transporting direction is disposed along the transporting direction. It can be arranged across a plurality of heat insulating plates. In this case, the pressing plate is formed in a rectangular box shape having a hollow internal space by the outer frame and the face plate, and the partitioning portion is formed in a lattice shape. Therefore, even if the number of heating and pressurization steps (the number of hot plates) increases, sufficient mechanical strength (rigidity) against bending, bending, twisting, etc. can be achieved without increasing the size of the press plate or providing a special reinforcing structure. And the durability of the press plate can be maintained over a long period of time. Moreover, since the partition part of a conveyance direction (lateral direction) is arrange | positioned ranging over the several heat insulation board arrange | positioned along the conveyance direction, the thermal expansion of the conveyance direction used as a longitudinal direction is a partition part of a conveyance direction. It is possible to absorb and prevent bending (warping) deformation in the conveying direction of the pressing plate.

  A fixed frame for attaching a drive cylinder having a ram for driving the pressing plate in the pressing direction is provided, and the ram of the driving cylinder is erected with respect to the fixed frame and the pressing plate according to the size of the plate to be processed. When viewed from the pressing direction, a plurality of partitioning portions of the pressing plate are formed along the conveying direction so as to extend in the standing direction, and among the partitioning portions formed in the standing direction, the ram It is possible to form the receiving part so that the width in the conveying direction of the partitioning part is larger than the width of the other partitioning part. Thereby, when the pressing position of the pressing plate by the ram of the drive cylinder is changed according to the size of the plate to be processed, the mechanical strength of the pressing plate is maintained. In addition, if the left and right widths of the pair of left and right ram partitions are formed to be equal in size, even if the longitudinal direction of the plate material to be processed is arranged horizontally so as to follow the transport direction, It is difficult for twisting of the pressing plate due to the pressing force to occur.

(Example)
Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. FIG. 1 is a plan view showing an example of a horizontal multi-stage press apparatus including a press structure according to the present invention, and FIG. 2 is a front view thereof. A horizontal multi-stage press apparatus 1 shown in FIG. 1 and FIG. 2 includes a plurality of processed plate materials in a horizontal state in which a plurality of veneer single plates are laminated with an adhesive to form a rectangular plate, such as a plywood and a decorative plate. W1 is held in an upright state by the loader unit 200 (carrying-in unit) and carried into the hot press unit 100 (heating and pressing unit). The processed plate material W2 which has been heated and pressed for a predetermined time by the hot press unit 100 and formed into a predetermined thickness is returned to the horizontal state again by the unloader unit 300 (unloading unit) and is unloaded.

  The hot press unit 100 includes a pair of upper and lower horizontal beams 101L, 101R, 102L, and 102R arranged at predetermined intervals in the vertical direction (standing direction) and the horizontal direction (conveying direction). A pair of fixed frames 103F and 103B are disposed in the (pressing direction). Moving rollers 105L and 105R (moving members) are attached to the rails 104L and 104R laid on the upper horizontal beams 101L and 101R. Between the rails 104L and 104R, a plurality of hot plates 130 and a pair or single (in FIG. 1, one) pressing plate 140 are suspended and supported via moving rollers 105L and 105R. A plurality of (for example, two) hydraulic cylinders 150L and 150R (drive cylinders) are inserted into the fixed frame 103F at a predetermined interval, and the tips of the rams 151L and 151R are attached to the pressing plate 140. In this example, the other fixed frame 103B also serves as a pressing plate on the opposite side.

  Below the hot plate 130, a roller conveyor 160 (conveyance body) that supports the plate material W <b> 1 in an upright state from below and carries it into the hot press unit 100 from the loader unit 200 is disposed. The roller conveyor 160 includes a plurality of (for example, four) claw rollers 161 having a width in the front-rear direction across all the carry-in paths K (see FIG. 4) in order to carry in the plate material W1 to be processed. It is arranged on a machine casing 108 that spans 102L and 102R. The processed plate material W1 carried in from the loader unit 200 by the roller conveyor 160 is heated and pressurized by the hot plate 130, and then becomes the processed plate material W2, and is again carried out by the roller conveyor 160 to the unloader unit 300.

  A loader unit 200 is disposed on the carry-in side (upstream side (rear side) in the transport direction) of the hot press unit 100. In the loader unit 200, a pair of left and right chain conveyors 202 </ b> L and 202 </ b> R (endless bodies) are disposed on the frame 201 with a predetermined interval. The chain conveyors 202L and 202R are provided with loader shelves 203. On the gantry 201, a carry-in conveyor 210 (carry-in body) for delivering the plate material W1 in a standing state to the roller conveyor 160 of the hot press unit 100 is disposed. The carry-in conveyor 210 includes a plurality of (for example, four) claw rollers 211 having a width in the front-rear direction across all the processed plate materials W1 (carry-in path K; see FIG. 4).

  An unloader unit 300 is disposed on the carry-out side (downstream side (front side) in the transport direction) of the hot press unit 100. In the unloader section 300, a pair of left and right chain conveyors 302L and 302R (endless bodies) are arranged on the frame 301 with a predetermined interval. An unloader shelf 303 is provided on the chain conveyors 302L and 302R. On the gantry 301, an unloading conveyor 310 (unloading body) for receiving the processed plate material W2 in the standing state from the roller conveyor 160 of the hot press unit 100 is disposed. The carry-out conveyor 310 includes a plurality of (for example, four) claw rollers 311 having a width in the front-rear direction across all the processed plate materials W2.

  3 is a plan view showing an example of a press structure according to the present invention, FIG. 4 is a side view thereof, and FIG. 5 is a side view showing a press closed state. In the hot press unit 100 (heating and pressurizing unit; press structure) shown in FIG. 3, fixed frames 103F and 103B are fixedly arranged at the front and rear positions in the horizontal direction, and above the fixed frames 103F and 103B in a parallel state. Horizontal beams 101L and 101R are provided. A plurality of moving rollers 105L and 105R (moving members) movable in the front-rear direction are provided on the rails 104L and 104R provided on the cross beams 101L and 101R. As is well known, the moving rollers 105L and 105R move in a rolling state of a roller or a sliding state by surface contact, and may be any means that can move linearly in the horizontal direction.

  Each moving roller 105L, 105R is connected to the upper side of the hot plate 130 in order to heat the plate material W1 erected in the vertical direction when the press is closed, and the plurality of hot plates 130 are arranged in the front-rear direction. A group of plates is formed by being suspended in a juxtaposed state. Further, when the press is released, the adjacent hot plates 130 are positioned parallel to the transport direction so as to maintain a predetermined interval so that the processed plate material W1 can be inserted between the hot plates 130 in the hot plate group. In addition, steam, hot oil, etc. are supplied / exhausted in the inside of the hot plate 130, and the temperature is maintained according to the kind of to-be-processed board | plate material W1.

  In addition, a pair of front and rear press plates 140F and 140B are provided which are connected to the hot plate 130 of the hot plate group, move the hot plate 130 in the front-rear direction, and perform press closing and press opening. The press plates 140F and 140B are disposed to face the respective heat plates 130 located on both sides in the front-rear direction of the hot plate group, and the upper sides of the press plates 140F and 140B are connected to the moving rollers 105L and 105R to move forward and backward. Suspend freely in the direction. Further, the pressing plates 140F and 140B are connected to the rams 151L and 151R of the hydraulic cylinders 150L and 150R provided on the fixed frames 103F and 103B, and can be reciprocated in the front-rear direction by the rams 151L and 151R. Note that the pressing plates 140F and 140B in FIG. 3 reciprocate in the front-rear direction with respect to the fixed frames 103F and 103B.

  Next, the specific structures of the press plates 140F and 140B are shown in FIGS. 6 is a front view of the pressing plate, FIG. 7 is a sectional view taken along the line AA, and FIG. 8 is a front view of the inside of the pressing plate. The pressing board 140F (140B) includes a side plate 141 (outer frame), a face plate 143, a heat insulating plate 144 (heat insulating portion), and a rib plate 145 (partition portion). The side plate 141 forms a hollow internal space 141 a, and the face plate 143 closes the side of the side plate 141 that faces (contacts) the heat plate 130. The heat insulating plate 144 is fixedly arranged on the hot plate pressing surface 143 a of the face plate 143 in a form that can contact and separate from the hot plate 130. The rib plate 145 is fixed to the back surface 143b opposite to the hot plate pressing surface 143a of the face plate 143 and the inner surface 141b of the side plate 141 to partition the internal space 141a.

  Specifically, the rib plates 145 are combined in a lattice shape, and the joints are welded to form a reinforcing frame structure. A side plate 141 is arranged around the four sides of the lattice-shaped rib plate 145, and the side plate 141 is welded to the rib plate 145 to form an integrated structure. By integrating the rib plate 145 and the side plate 141, the frame portions of the press plates 140F and 140B having a hollow horizontally long rectangular box shape are formed, and the press plates 140F and 140B are formed of the processed plate material W1 via the hot plate 130. Each has a size required to press the entire surface.

  A face plate 143 made of a metal plate is attached to the front face side of the press panels 140F and 140B, that is, the press side that contacts and presses the hot plate 130. When the face plate 143 comes into contact with the lattice-shaped rib plate 145, the heat of the face plate 143 is transferred to each rib plate 145. In order to block or limit the heat transferred from the hot plate 130 to the face plate 143 (and each rib plate 145) when the press is closed (at the time of heating and pressurization), a plurality of (for example, eight) heat insulating plates 144 made of epoxy resin are provided. It is fixedly arranged on the face plate 143 by fastening members 144b such as bolts.

  As shown in FIG. 6, a predetermined gap Z is formed between adjacent heat insulating plates 144. The gap Z is provided side by side in the longitudinal direction of the face plate 143 formed in a horizontally long rectangular plate shape. Therefore, even if each heat insulating plate 144 abuts on the heat plate 130, it forms a groove shape opened in the vertical direction so that the gap Z opens to the outside (see FIG. 7).

  Specifically, the heat insulating plate 144 is formed in a rectangular shape (strip shape) that is long in the up-down direction and short in the left-right direction, and a plurality of (for example, left and right) gaps Z having a predetermined width w in the left-right direction (for example, 8). On the other hand, the face plate 143 of the pressing board 140F (140B) is formed in a rectangular shape that is long in the left-right direction and short in the up-down direction. In this embodiment, the heat insulating plate 144 is formed in a vertically long and elongated strip shape (or string shape), and the lateral width W of the heat insulating plate 144 is set to prevent mechanical deformation (such as bending) of the outermost heat plate 130. It is set in a range of 5 to 40 times (for example, 9 times) the lateral width w of the gap Z. When the width W of the heat insulating plate 144 is less than five times the width w of the gap Z, the function of receiving the heat insulating plate 144 (deflection prevention function) cannot be sufficiently exerted, and the outermost heat plate 130 is mechanically There is a risk of deformation (bending). On the other hand, when the lateral width W is more than 40 times the lateral width w, there is a possibility that a sufficient heat dissipation effect from the gap Z cannot be obtained or the material cost of the heat insulating plate 144 becomes expensive.

  Further, the rib plate 145 of the pressing plate 140F (140B) is formed in the vertical direction (vertical direction) so as not to overlap with the gap Z between the heat insulating plates 144 except for a part (one place in the center). Has been. Specifically, the longitudinal rib plate 145 is disposed so as not to overlap the gap Z in the left-right direction (conveying direction), and the lateral width (left-right width) w ′ of the rib plate 145 is equal to the lateral width (left-right) of the heat insulating plate 144. Width) is set smaller than W. As a result, the heat generated in the hot plate 130 may be blocked or restricted by the heat insulating plate 144 and may not be easily transmitted from the face plate 143 to the rib plate 145.

  An example of the material of the heat insulating plate 144 is an epoxy laminated plate based on paper, cloth, or glass. Accordingly, it is possible to prevent thermal deformation of the pressing plates 140F and 140B, and to strengthen the receiving function (deflection preventing function) of the outermost heat plate 130 to prevent mechanical deformation (deflection or the like). Therefore, by using an epoxy laminated plate for the heat insulating plate 144, the mechanical strength (rigidity) of the press plates 140F and 140B and the outermost hot plate 130 can be improved. However, the material is not limited at all, and any material having an equivalent heat insulating function (including mechanical strength) may be used.

  As shown in FIG. 7, a back side reinforcing plate 147 for connecting to the rams 151L, 151R (see FIG. 3) of the hydraulic cylinders 150L, 150R is attached to the back side of the pressing plate 140F (140B). By the way, as shown in FIG. 8, the rams 151L and 151R of the hydraulic cylinders 150L and 150R are moved and adjusted in the vertical direction with respect to the fixed frames 103F and 103B and the press plates 140F and 140B according to the size of the processed plate material W1. Can do. Therefore, among the rib plates 145 formed in the vertical direction, the pair of ram rib plates 145a (partition portions) that individually receive the pair of left and right rams 151L and 151R has a width in the left-right direction that is different from that of the other rib plates 145. Are formed to be equal in size and larger than the width in the left-right direction.

  Thereby, even if the pressing positions of the press plates 140F and 140B by the rams 151L and 151R are changed according to the size of the processed plate material W1, the mechanical strength of the press plates 140F and 140B is maintained. Moreover, since the right and left widths of the pair of left and right ram rib plates 145a are formed to be equal in size, even if the longitudinal direction of the processed plate material W1 is arranged horizontally so as to be along the transport direction, Torsion of the press discs 140F and 140B due to the pressing force of the rams 151L and 151R hardly occurs.

  Returning to FIG. 3, the hot plates 130 in the hot plate group, and the hot plates 130 at both ends and the press plates 140 </ b> F and 140 </ b> B are respectively spaced by a space restricting tool 131 in order to maintain a predetermined front-rear space when the press is released. It is connected. The space restricting tool 131 is formed in a gate shape, spans between adjacent brackets 132 on the upper side of the heat plate 130 and the pressing plates 140F and 140B, one end thereof is attached to the bracket 132, and the other end is a free end. When the press is released, the free end of the space restricting tool 131 is locked to the bracket 132, and the front-rear space in the hot plate 130 and the pressing plates 140F and 140B is restricted with a certain width.

  As shown in FIG. 4 and FIG. 5, there is a claw for carrying, supporting, and carrying out the processed plate material W <b> 1 in an upright direction below the hot plate 130 in the suspended hot plate group. A roller conveyor 160 provided with a plurality of rollers 161 arranged in parallel is disposed, and the upper surface of the plurality of claw-equipped rollers 161 serves as a conveying surface.

  Based on FIG.4 and FIG.5, the action | operation of the hot press part 100 is demonstrated. In order to heat and pressurize the plate material W1 to be processed, the rams 151L and 151R are degenerated by the operation of the hydraulic cylinders 150L and 150R. As a result, the pressing plates 140F and 140B can be moved to a position away from the hot plate 130 located on both sides in the front-rear direction of the hot plate group and placed on standby. The press plates 140F and 140B are not affected by the heat plate 130, and the heat plate 130 connected by the space restricting tool 131 is predetermined so that the processed plate material W1 is interposed between the heat plates 130. Since it opens at intervals, it can be in a press open state (see FIG. 4). Since the press plates 140F and 140B are separated from the hot plate 130 by releasing the press, most of the heat generated in the hot plate 130 is dissipated into the air, and transmission to the press plates 140F and 140B (particularly the face plate 143) is avoided (FIG. 7).

  Then, the processed plate material W1 is conveyed by the roller conveyor 160 while being supported in an upright state, and the processed plate material W1 is inserted between the hot plates 130. Thereafter, the rams 151L and 151R are extended by the operation of the hydraulic cylinders 150L and 150R, whereby the pressing plates 140F and 140B located on both sides in the front-rear direction of the hot plate group contact the hot plates 130 on both sides of the hot plate group. The hot plates 130 can be moved in the direction in which the space between the hot plates 130 is contracted by the pressing plates 140F and 140B. The plate material W1 to be processed is press-closed between the hot plates 130 and heated and pressed for a predetermined time to carry out the processed plate material W2 formed to a predetermined thickness by the roller conveyor 160 (see FIG. 5).

  When the press plates 140F and 140B abut against the hot plate 130 due to the press closing, the heat insulating plate 144 is interposed, so that the heat generated in the hot plate 130 is generated by the heat insulating plate 144 by the press plates 140F and 140B (particularly the face plate). Heat transfer to 143) is interrupted or restricted. Further, since the vertical gap Z is formed between the heat insulating plates 144, the gap Z can be used as a heat dissipation passage. Further, the heat (mainly radiant heat) transmitted to the face plate 143 through the gap Z is transmitted to the entire pressing plates 140F and 140B (see FIG. 7).

The top view which shows an example of the horizontal type multistage press apparatus containing the press structure which concerns on this invention. The front view of FIG. The top view which shows an example of the press structure which concerns on this invention. FIG. 4 is a side view of FIG. 3. The side view which shows a press closed state. The front view of a press board. AA sectional drawing of FIG. The front view inside a press panel.

Explanation of symbols

1 Horizontal multi-stage press device 100 Hot press section (heat press section; press structure)
103F, 103B Fixed frame 130 Hot plate 140F, 140B Press panel 141 Side plate (outer frame)
141a Internal space 141b Inner surface 143 Face plate 143a Hot plate pressing surface 143b Back surface 144 Heat insulation plate (heat insulation part)
145 Rib plate (partition)
145a Rib plate for ram (partition)
150L, 150R Hydraulic cylinder (drive cylinder)
151L, 151R Ram W1 Processed plate material W2 Processed plate material Z Gap

Claims (4)

In order to heat and press a plurality of processed plate materials held in an upright state and carried in the conveying direction along the pressed surface, they are arranged to be movable along the thickness direction of the processed plate material. A plurality of hot plates, and a pair of pressing plates arranged so that at least one of them is movable in the pressing direction in order to press the plurality of processed plate materials from the outside in the thickness direction via the plurality of hot plates A press structure of a horizontal multi-stage press device comprising:
The pressing plate has an outer frame that forms a hollow inner space, a face plate that covers the side of the outer frame that faces the hot plate, and a hot plate pressing surface of the face plate that can contact and separate from the hot plate. A heat insulating portion fixedly arranged in a form, and a partition portion that is fixed to the back surface opposite to the hot plate pressing surface of the face plate and the inner surface of the outer frame and partitions the internal space,
At the time of heating and pressurizing the pair of pressing plates in the pressing direction, while the heat insulating portion comes into contact with the hot plate, the heat generated in the hot plate is prevented or suppressed from being transmitted to the face plate. When the pressure is released to open the pair of pressing plates in the pressing direction, the heat insulating portion is separated from the hot plate, so that heat generated in the hot plate is dissipated into the air and transmission to the face plate is avoided. ,
A fixed frame for mounting a drive cylinder having a ram for driving the pressing plate in the pressing direction is provided, and the ram of the driving cylinder corresponds to the fixed frame and the pressing plate according to the size of the plate to be processed. It is possible to adjust the movement in the standing direction,
When viewed from the pressing direction, a plurality of partitioning portions of the pressing plate are formed along the conveying direction so as to extend in the standing direction, and among the partitioning portions formed in the rising direction, the ram is formed. A press structure of a horizontal multi-stage press apparatus, wherein the width of the partitioning portion to be received is formed so as to be larger than the width of the other partitioning portion . When viewed from the pressing direction, the face plate of the pressing plate is formed in a rectangular shape that is long in the transport direction and short in the standing direction of the processed plate material,
The heat insulating portion includes a plurality of rectangular heat insulating plates that are long in the standing direction and short in the transport direction, and are arranged along the transport direction with a gap having a predetermined width in the transport direction. The press structure of the horizontal multistage press apparatus as described in 1.   The press structure of the horizontal multistage press apparatus according to claim 2, wherein when viewed from the pressing direction, a width in the transport direction of each heat insulating plate constituting the heat insulating portion is formed to be equal to or larger than a width of the gap. When viewed from the pressing direction, the partition portion of the pressing plate is formed in a lattice shape extending in the transport direction and the standing direction over the entire back surface of the face plate,
4. The press structure of the horizontal multi-stage press apparatus according to claim 2, wherein the partition in the transport direction is disposed across the plurality of heat insulating plates disposed along the transport direction.

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