JPH11245089A - Pressing element using fluid, and pressing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform a good and even pressing to a pressing object while the improvement of productivity is secured. SOLUTION: This pressing device 1 comprises a base stand 2, on which a long wood W is put and which transfers the wood to the downstream side, and a pressing structure 3, which is formed on the downstream side of the base stand 2 and to which the wood W is transferred. The pressing structure 3 comprises a pair of trapezoidal supporting frames 31 in a width direction, a pair of upper and lower liquid back rollers 4 being cross-linked between a pair of the supporting frames 31, and an elevating means 32 for adjusting the height position of the upper liquid back roller 4. The liquid back rollers 4 comprise rotary wheels 41 and circular backs 42 arranged in a manner that the fluid exists around the periphery of the rotary wheels 41 at a given pressure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressurizing body and a pressurizing device using a fluid used when pressurizing an object to be pressurized.

[0002]

2. Description of the Related Art Conventionally, a batch type and a continuous type are known as a pressurizing device for performing a pressurizing process on a pressurized object such as wood. The batch-type pressurizing device presses the press plate in the direction of the pressurized object by a hydraulic mechanism or the like in a state in which the pressurized object is sandwiched between a pair of upper and lower press plates, and the pressurized object sandwiched thereby is pressed. The object is subjected to a pressure treatment. In such a batch-type pressurizing apparatus, there is an inconvenience that it takes a long time to insert and remove the pressurized object between the press plates, which is a bottleneck in the production process and does not improve the productivity. Further, when the object to be pressurized is a long object, a long press plate and a large hydraulic mechanism or the like must be employed to match the object, which is disadvantageous in that the equipment cost increases.

[0003] On the other hand, a continuous type pressure device is generally called a so-called roller type, in which a single roller provided on a substrate with a predetermined gap size or a vertically opposed device. It is formed by a pair of pressing rollers described above, and performs a pressing process by inserting a pressing object into a gap between the roller and the substrate or a gap between the pair of rollers. In such a continuous pressurizing apparatus, the pressurizing process is performed only by sequentially passing the pressurized objects through the gap, so that the disadvantage of low productivity such as a batch type can be overcome and the equipment scale is expanded. There is an advantage that it is possible to cope with a long object without performing.

[0004]

By the way, in a roller-type continuous pressing device, a pressing roller made of a rigid metal is often used. Is the contact area of the roller that exerts pressing force against the pressurized object when the pressurized object is passed through the gap between the pair of rollers because the arc-shaped contact surface against the pressurized object does not deform. Is very small, and it is difficult to obtain a sufficient pressurizing effect over time. In order to solve such a problem, the feed speed of the pressurized object must be reduced in order to increase the pressurizing time, but in this case, a new increase in productivity as expected cannot be achieved. Issues are raised.

Further, since the roller has an arcuate contact surface with the object to be pressed, the distribution of pressure to the object to be pressed is not uniform in the feed direction. In the case where the veneer is laminated plywood, the part before and after being pressed against the roller in the pressing process has a waving phenomenon, and the part that has been adhered to tends to peel off, resulting in poor adhesion. Exists.

When the object to be pressed is lumber, when the lumber is pressed between a pair of metal pressure rollers, the rear end of the lumber follows the direction in which the fibers extend with the rear portion of the lumber approaching the rollers. Inconveniences such as breaking of the alligator mouth occur.

In order to solve such a problem, it is conceivable to employ, for example, a rubber roller made of a flexible material capable of elastic deformation as the pressure roller. However, even if a rubber roller is used, the rubber roller has a different elastic deformation between immediately below and a position before and after the rubber roller, so that the pressing object cannot be uniformly pressed in the feeding direction. However, it does not provide a fundamental solution to the problem of the rigid roller.

[0008] A cylindrical body made of a thin metal plate is loosely fitted to the fixed shaft with a small gap between itself and the outer peripheral surface, and a fluid is interposed in the small gap to fix the cylindrical body to the fixed shaft. A pressure body that can rotate around has been proposed,
Since such a pressurizing member can be freely eccentric with respect to the fixed shaft, a sufficient pressurizing effect cannot be obtained. Also, it is difficult to obtain a good seal structure for confining the fluid in the gap.

SUMMARY OF THE INVENTION The present invention has been made to fundamentally solve the above-mentioned problems, and it is intended to improve the productivity and to apply a good uniform pressurization to a pressurized object. It is an object of the present invention to provide a pressurized body and a pressurized device using a fluid capable of performing pressure reduction.

[0010]

According to a first aspect of the present invention, there is provided a pressurizing body comprising: a rotating shaft; and a deformable face material having a fluid interposed at a predetermined pressure on the outer periphery of the rotating shaft. Characterized by the following.

According to the present invention, when the object to be pressed is pressed against the deformable surface material with the rotating shaft fixed, the deformable surface material loaded with the fluid therein is deformed into a crushed state. ,
As a result, the pressing area by the pressing body increases, and the pressing force on the pressing surface of the deformable face material becomes uniform by the sealing fluid, so that a good uniform pressing can be performed on the pressing target.

According to a second aspect of the present invention, in the first aspect of the invention, the deformable face material is an annular tube.

According to the present invention, it is possible to obtain a pressurized body by fitting the tube body on the rotating shaft.
The manufacture of the pressurized body becomes easy, and the predetermined pressure of the fluid inside is easily secured.

According to a third aspect of the present invention, in the second aspect of the present invention, the annular tube is in pressure contact with the outer periphery of the rotating shaft.

According to the present invention, the rotation of the rotation shaft is reliably transmitted to the tube body.

According to a fourth aspect of the present invention, at least two rotating shafts, and a deformable face material which is stretchably stretched between the rotating shafts and in which a fluid is loaded at a predetermined pressure are provided. And a tube body.

According to the present invention, since the tube body is stretched between the two rotating shafts, the pressing surface for generating a uniform pressure by the pressing body increases, and the pressing process of the pressing object is performed. Is performed efficiently.

According to a fifth aspect of the present invention, in the fourth aspect of the invention, at least one pressure assist roller is provided between the two rotation shafts in a state of being pressed against the inner peripheral surface side of the tube body. Are provided in the circumferential direction.

According to the present invention, it is possible to prevent the tube body between the two rotating shafts from rising to the object to be pressurized by the pressurizing auxiliary roller, and to more surely press the object to be pressurized. Pressure treatment is performed.

According to a sixth aspect of the present invention, in the first aspect of the present invention, the fluid is a heat medium.

According to the present invention, when the object to be pressed is a plywood or the like in which the bonding process is performed by a pressing process involving a heating process, for example, the fluid heated to a high temperature is used to perform the pressing. Both the pressure treatment and the heat treatment are performed on the object at the same time, which contributes to the improvement of production efficiency. Also,
A cooled fluid may be used for an object requiring cooling.

According to a seventh aspect of the present invention, in the first aspect of the present invention, the deformable face material has a wide dimension.

According to the present invention, the present invention can be applied to a case where the object to be pressurized is wide, and can be uniformly pressurized over the entire width in the width direction. Thus, even if the elastic deformation occurs, a uniform pressure can be realized over the entire surface.

According to an eighth aspect of the present invention, there is provided a pressurizing apparatus comprising the pressurizing body according to any one of the first to seventh aspects, wherein the pressurizing object passes between the two pressurizing bodies. It is characterized by pressing.

According to the present invention, the pair of pressurizing members are arranged facing each other such that the outer peripheral surfaces thereof face each other in a state where the extending directions of the rotating shafts are aligned and the distance between the shafts is fixed. The object to be pressed passes through the gap between each of the deformable surfaces of the pair of pressurized members by rotating or pressing the object to be pressed and pushing the object to be pressed between the deformable surfaces. During this, a predetermined pressurizing process is performed by being pressed by the deformable face material.

When the object to be pressurized is sandwiched between the pair of pressurizing members, the deformable face material in which the fluid is loaded is deformed into a crushed state. Since the area is increased and the fluid is sealed, the pressing force on the pressing surface of the deformable face material is all uniform. Therefore, the pressing area in the case of the conventional metal pressure roller is small, and disadvantages such as low pressing processing ability due to uneven pressing force are solved.
It is possible to apply good uniform pressurization to the pressurized object while ensuring the improvement of productivity.

According to a ninth aspect of the present invention, there is provided the pressurizing member according to any one of the first to seventh aspects, and a pressing flat member disposed to face the outer peripheral surface of the deformable face material. It is characterized in that the first and second objects to be pressed, which are provided with an adhesive, are passed between the outer peripheral surface of the face material and the pressing flat member in a compressed state.

According to this invention, the first and second objects to be pressed are passed between the pressing body and the pressing flat member by passing the first and second objects to be pressed provided with the adhesive. The object is pressed over a long dimension in the feed direction, whereby the interposed adhesive spreads evenly between the objects to be pressed, and a good adhesive action is exhibited.

According to a tenth aspect of the present invention, in the invention of the eighth or ninth aspect, an application section for applying an electromagnetic wave toward the object to be pressurized is provided near the rotation axis. It is characterized by the following.

According to the present invention, the electromagnetic wave from the application section is applied to the pressurized object while supplying the pressurized object to the pressurized body or immediately after the pressurized body, so that the pressurized object is applied to the pressurized object. Both the pressure treatment and the heat treatment can be performed simultaneously. In addition, since the rotating shaft made of a conductive material (metal) is separated from the pressurized portion by a predetermined distance via the fluid space made of a non-conductive material, the electromagnetic wave is applied toward the vicinity of the pressurized portion. Even if the electromagnetic wave energy is not concentrated on the rotation axis, the electromagnetic wave can be effectively supplied to the vicinity of the pressurized portion of the pressurized object (immediately before and immediately after), and the pressurization can be performed. A synergistic effect with heating is obtained directly.

In the present invention, the provision of the application section in the vicinity of the rotation axis also includes using the rotation axis itself as the application section. That is, if the metal rotating shaft itself is used as the application unit (that is, one electrode of the high-frequency counter electrode), the above-described problem of the short-circuit of the electromagnetic wave energy is solved and the object to be pressed is pressurized. It is possible to apply high frequency to the part where it is present, and the synergistic effect of pressurization and high frequency application is further improved.

The invention according to claim 11 is the invention according to claims 8 to 1.
The invention according to any one of the first to third aspects, further comprising a propulsion means for propelling the pressurized object in the passing direction.

According to the present invention, the object to be pressurized is pressed by the driving of the propulsion means, and is propelled in the direction of the pressurized body, preferably at a constant speed. By adopting the propulsion means, idle feeding due to slip or the like does not occur as compared with the case where the pressurizing body of the pressurizing device is rotationally driven, and the pressurized object is supplied to the pressurizing body in a stable state. It becomes possible.

According to the twelfth aspect of the present invention, there is provided an image processing apparatus comprising:
The invention according to any one of the first to eighth aspects, further comprising a moving mechanism that enables at least one of the pressing bodies to move in a pressing direction.

According to the present invention, it is possible to cope with various thickness dimensions of the pressurized object by adjusting the gap size of the pressurized body through which the pressurized object passes by driving the moving mechanism. Further, the pressing force can be adjusted, and the versatility of the pressing device increases.

According to a thirteenth aspect of the present invention, there is provided a shaft, and an annular tube body which is loosely fitted on the outer periphery of the shaft and in which fluid is loaded at a predetermined pressure. It is a feature.

According to the present invention, the tube body can be fitted to the shaft in a loosely fitted state without being restricted by the diameter of the shaft, and the versatility of the tube body is increased.

[0038]

FIG. 1 is a side view showing a first embodiment of a pressurizing device according to the present invention, and FIG. 2 is a plan view thereof. In this embodiment, the pressurizing body (liquid back roller 4) of the first example is applied. As shown in these figures, a pressurizing device 1 is formed on a base 2 on which a long piece of wood W is placed and sent downstream (to the right in the figure), and on the downstream side of the base 2, Further, it has a basic configuration including a pressing structure 3 into which the wood W is fed.

The base 2 has a horizontally extending wood mounting table 21 supported by predetermined columns and frames on the upper surface thereof.
At the upstream end, a propulsion means 22 for propelling the wood W supported by the frame toward the downstream side is provided. Due to the driving of the propulsion means 22, the wood W placed on the wood placing table 21 is pressed at its upstream end toward the downstream side, whereby it is sequentially fed toward the pressurizing structure 3.

The pressure structure 3 includes a pair of trapezoidal support frames 31 in the width direction, which are erected so as to sandwich the base 2 from both sides on the downstream side, and a bridging state between the pair of support frames 31. And a pair of upper and lower liquid back rollers (pressurizing members) arranged to sandwich the fed wood W.
4 and an elevating means (moving mechanism) 32 for adjusting the height position of the upper liquid back roller 4.

The holding member body 31 is moved in the front-rear direction (FIG. 1).
And an intermediate support 33 erected in the vertical direction at a substantially intermediate position (in the left-right direction in FIG. 2). The intermediate support 33 projects upward from a substantially central position in the vertical direction toward the upstream side. A pair of widthwise upper brackets 34a are provided, and a pair of widthwise lower brackets 34b facing the upper brackets 34a protrude from the lower portion,
Each of the upper and lower brackets 34 supports a horizontal shaft 35 extending horizontally in the width direction.

The pair of upper and lower liquid back rollers 4 are rotatably supported around a pair of upper and lower horizontal shafts 35 supported by the brackets 34a and 34b, respectively. The installation height is set so that the vertical midpoint position at the position opposing the above corresponds to the height level of the wood W sent out by the propulsion means 22. Further, the width of the liquid back roller 4 is set to be larger than the width of the wood W to be subjected to the pressure treatment,
This prevents the wood W from protruding in the width direction from the liquid back roller 4 while being pressed by the pair of liquid back rollers 4.

When the upper bracket 34a is moved up and down by the drive of the elevating means 32, the lower bracket 34b is moved up and down by the same amount of movement in the same direction as the upper bracket 34a, whereby the upper and lower liquids are moved. The back rollers 4 are separated from the home position where they are closest to each other, and the distance between the opposing surfaces of the liquid back rollers 4 from the home position is the same.

The liquid back roller 4 includes the horizontal shaft 3
5 and a circular rotating wheel 41 rotatably supported on the outer peripheral surface of the rotating wheel (rotating shaft) 41.
An annular back 42 as a deformable face material is formed.

The rotating wheel 41 has a structure in which rims are provided on both sides of the cylindrical body so as to be radially projected with a predetermined dimension over the entire circumference, and an annular groove is formed between a pair of rims in the width direction. It is in a formed state. On the other hand, the annular back 42 is formed in a donut shape whose inner diameter is the same as or slightly smaller than the outer diameter of the annular groove by a material that can be flexibly deformed, and the annular back 42 is pressed into the annular groove between the rims. Thus, the liquid back roller 4 is formed. The annular bag 42 is filled in advance with a liquid such as water or oil so as to have a predetermined pressure, and the annular bag 42 is in a tension state.

In this embodiment, the annular bag 42 is formed by laminating a rubber and a fibrous body in a plurality of layers to form a bag body, and vulcanizing the bag body to improve the strength of the rubber. Is adopted. By adopting such a manufacturing method, the obtained annular bag 42 is excellent in deformability and rich in pressure resistance due to the synergistic action of the flexibility of rubber and the toughness of fiber.

According to the pressurizing device 1 of the first embodiment, first, the lifting means 32 is operated to operate the upper and lower liquid back rollers 4.
The distance between them is set to a predetermined dimension, that is, a dimension corresponding to the thickness dimension of the compressed wood obtained by compressing the wood W. After the wood W is loaded on the wood mounting table 21, Propelled downstream by driving. Then, the leading end of the wood W heading downstream enters between the annular backs 42 of the upper and lower liquid back rollers 4, whereby the upper and lower liquid back rollers 4 move the horizontal shaft 35.
While rotating around, the wood W is pressed by the reaction.
Then, as the propulsion of the wood W is continued, the wood W is sequentially pressurized by the pair of annular bags 42, and is discharged as compressed wood downstream of the liquid back roller 4.

Since a fluid such as water or oil is sealed in the annular bag 42, no matter how the pressing surface of each annular bag 42 is deformed when the wood W is pressed, it increases due to the deformation. Since the pressure applied to the pressurized surface is uniform at any position according to the principle of Pascal, the wood W is uniformly applied with the pressurized time increased by the increase in the pressurized surface. It is possible to obtain compressed wood that has been subjected to a sufficient pressure treatment.

FIG. 3 is a side view showing a second embodiment of the pressurizing device according to the present invention, and FIG. 4 is a plan view thereof.
Also in this embodiment, the first example of the pressure body (the liquid back roller 4) is applied. As shown in these figures,
The pressure device 1a according to the second embodiment is formed by adding a high-frequency heating structure and a cooling structure to the pressure device 1 according to the first embodiment. Except for the high-frequency heating structure and the cooling structure, the structure is the same as that of the first embodiment.

The high-frequency heating structure includes two high-frequency oscillators 5 disposed in the vicinity of the pressurizing structure 3 and counter electrodes (heating counter electrodes 51) disposed before and after the liquid back roller 4.
And an activation counter electrode 52). In the present embodiment, as the high-frequency oscillator 5, two high-frequency oscillators 5 a for heating and an activation high-frequency oscillator 5 b disposed downstream of the high-frequency oscillator 5 a for heating are employed. Have been. The heating high-frequency oscillator 5a is for preheating the wood W before it is subjected to the pressure treatment by the liquid back roller 4 so that the wood W can be easily compressed. The activation high-frequency oscillator 5b includes: The purpose is to improve the activity of the compressed wood W by applying electromagnetic waves to the compressed wood after compression, thereby stabilizing the compressed wood histologically.

The heating counter electrode 51 is composed of a heating upper electrode 51a and a heating lower electrode 51b which are vertically opposed to each other across a wood passage on the upstream side of the liquid back roller 4, and the heating electrodes 51a and 51b are heated by the heating electrodes 51a and 51b. High frequency oscillator 5
a of the two electrodes 51
A high frequency is applied to the moving wood W sandwiched between the a and 51b, and the wood W is heated to a predetermined temperature by the internal heating by this, before the pressure treatment is performed.

The activation opposing electrode 52 is composed of an activation upper electrode 52a and an activation lower electrode 52b which are vertically opposed to each other with a wood passage downstream of the liquid back roller 4 therebetween.
When the high frequency is supplied from the activation high frequency oscillator 5b to the activation electrodes 52a and 52b, the moving wood W sandwiched between the electrodes 52a and 52b is formed.
The compressed state of the compressed wood is stabilized by applying activation to the compressed wood.

The cooling structure comprises a pair of cooling frames 36 extending downstream of the support frame 31 and vertically opposed to each other so as to sandwich the wood passage supported by the cooling frames 36. The driving roller 36a includes a pair of driven rollers 36b disposed downstream of the driving roller 36a, and a pair of upper and lower crawlers 36c adjusted by the driving roller 36a and the driven roller 36b.

The compressed wood that has passed between the pair of activation opposing electrodes 52 moves downstream by the orbital movement of the crawler 36c driven by the drive roller 36a, and is cooled during this time.

According to the pressurizing device 1a of the second embodiment, the wood W propelled in the direction of the liquid back roller 4 by the propulsion means 22 first passes through the space between the counter electrodes 51 for heating, and the high frequency oscillation for heating is performed. The high frequency from the machine 5a is applied, the temperature is raised to a predetermined temperature at which compression is easily performed, and then, a pressure treatment is performed by the liquid back roller 4 to turn into compressed wood, which then passes between the opposing electrodes 52 for activation. When activated, the compressed state is histologically stable due to the activation, and is cooled by the heat transfer to the driven roller 36b while passing between the driven rollers 36b. Is discharged as

As described above, the pressurizing device 1a according to the second embodiment includes the heating counter electrode 51 and the activation counter electrode 5 before and after the compression process by the liquid back roller 4.
Since the high frequency is applied to the wood W before and after the compression with the addition of 2, the synergistic effect of the application of the high frequency and the pressurizing process makes it possible to obtain higher quality compressed wood.

Even if the opposing electrodes 51 and 52 are provided close to the liquid back roller 4, an annular back 42 is provided between the opposing electrodes 51 and 52 and the metal rotating wheel 41 of the liquid back roller 4. And the distance between them is such that a high-frequency short circuit can be prevented.
1, 52 can be brought close to the position where the wood W is pressed, and the synergistic effect of the pressing process and the high-frequency application process can be exhibited more favorably.

FIG. 5 is a view showing a third embodiment of the pressurizing device according to the present invention, wherein (a) is an explanatory view in plan view and (b)
Is an explanatory diagram in a side view. In this embodiment, a plywood P in which a plurality of veneers are laminated via an adhesive layer is applied as an object to be pressed, and a tube body 4a as a second example is employed as a deformable face body. ing. FIG.
As shown in FIG. 1, the pressing device 1b includes a rectangular frame 23 formed by combining columns and beams, and a pair of horizontal shafts 3 in the front-rear direction supported by the rectangular frame 23.
5 and a rotating wheel 4 rotatably supported by the horizontal shaft 35.
1, a tube body 4a as a deformable face member stretched between the rotating wheels 41, and a plurality of support rollers 43 arranged side by side at a predetermined pitch below the tube body 4a so as to extend in the width direction. It consists of

In the pressurizing device 1b, the plywood P is inserted between the support roller 43 and the tube body 4a, and the plywood P is propelled by a propulsion means (not shown) so that the tube body 4a is made of a pair of tubes. The plywood P is rotated between the rotating wheels 41, and the plywood P sandwiched between the tube body 4a and the support roller 43 in the course of the rotation is pressed by the tube body 4a to obtain a uniform plywood.

The rectangular frame 23 is provided with elevating means 32 for elevating and lowering each of the horizontal shafts 35. The tube body 4a is elevated by elevating the rotating wheel 41 via the horizontal shaft 35 by driving these elevating means 32. Tube 4a
The size of the gap between the plywood P and the support roller 43 can be changed, so that the pressing device 1b can correspond to the thickness of the plywood P.

A plurality of auxiliary rollers 4 juxtaposed at a predetermined pitch are provided at a portion corresponding to the inner peripheral surface of the tube body 4a.
The lower row of auxiliary rollers 44 assists the pressing of the plywood P by the tube body 4a, and the upper row of auxiliary rollers 44 prevents the tube body 4a from sagging.

In the present embodiment, the tube body 4a is made of rubber. A fluid composed of water, oil, or the like at a predetermined pressure is sealed in the tube body 4a, so that the tube body 4a is kept in a shape corresponding to its capacity.

According to the pressing device 1b of the third embodiment, the surface of the plywood P is deformed by the liquid back roller 4 while the plywood P is sandwiched between the tube body 4a and the support roller 43. The plywood P is evenly pressed against the outer peripheral surface of the tube body 4a, and the pressure applied by the liquid sealed therein is uniform in any part. Plywood P is obtained.

FIG. 6 is a view showing a fourth embodiment of the pressurizing device according to the present invention, wherein (a) is an explanatory view in plan view, and (b)
Is an explanatory diagram in a side view. FIG. 7 is a partially enlarged view of a main part of FIG. In this embodiment, as in the third embodiment, a plywood P in which a plurality of veneers are laminated via an adhesive layer is applied as a pressing object to be processed by the pressing device 1c. Further, in this embodiment, one high-frequency oscillator 5 is employed, and in order to apply the high frequency from the high-frequency oscillator 5 to the plywood P, a predetermined frequency is used instead of the auxiliary rollers 44 in the lower row. A plurality of grid electrodes 45 arranged at a pitch are provided. The grid electrode 45 is supplied with a high frequency from the high frequency oscillator 5. Pressurizing device 1 of this embodiment
c has the same configuration as the pressurizing device 1b of the third embodiment except that the high-frequency oscillator 5 and the grid electrode 45 are employed.

As shown in FIG. 7, the grid electrodes 45 are alternately formed as an anode electrode and a cathode electrode, and the plywood P is heated by an electric field generated between each anode electrode and an adjacent cathode electrode. Thereby, the adhesive layer P1 is heated and solidified, so that a quick bonding process can be performed.

According to the pressurizing device 1b of the fourth embodiment, the plywood P can be quickly solidified by the high frequency heating by the grid electrode 45 in addition to the pressurizing process by the tube body 4a. Therefore, it is effective in increasing the efficiency of plywood production. If a non-polar liquid such as an olefin-based oil is used as the liquid sealed in the tube body 4a, the high frequency from the grid electrode 45 passes through the liquid and is effectively applied to the plywood P. Efficiency is improved. If a liquid having a polarity such as water is used as the liquid sealed in the tube body 4a, the liquid back roller 4 is applied by applying a high frequency from the grid electrode 45.
Since the liquid inside is heated, the heating causes the temperature of the tube body 4a itself to rise. Accordingly, by bringing the heated tube body 4a into contact with the plywood P, the plywood P can be heated by a heat transfer mechanism.

The liquid back roller 4 and the tube body 4a are made of a laminated material (LVL, MD) manufactured by bonding a veneer or a piece of wood with an adhesive.
F), suitable for manufacturing engineering wood such as laminated wood. In the conventional method of heating and pressurizing the above-mentioned improved wood with a hot press, the solvent and moisture in the adhesive evaporate into high-pressure steam. The side of the assembly where the plate is not in contact may be explosively destroyed (so-called puncture phenomenon). To prevent such inconvenience, a so-called depressurizing step is required in which the press is intermittently operated. As a result, there was a limit to the improvement in productivity, but the liquid back roller 4 and the tube 4
By employing a, the expansion of the aggregate due to steam can be effectively absorbed by the fluid in the tube body 4a, and the explosive destruction can be suppressed.

The present invention is not limited to the above embodiment, but includes the following contents.

(1) In the above embodiment, the annular back 42 employed in the first and second embodiments as the deformable face material, and the tube body 4a employed in the third and fourth embodiments, In each case, rubber products are applied. However, the present invention is not limited to the case where these deformable face materials are made of rubber, and various synthetic resins can be applied.

(2) In the present embodiment, the annular bag 42 is formed in a donut shape.
Is not limited to a donut shape, and an annular back having a structure in which a peripheral portion is locked to a rim of the rotating wheel 41, such as an automobile tire, may be employed. In this manner, the supply and discharge of the fluid into and from the annular bag can be performed by the horizontal shaft 3 provided with the rotary joint.
5 from outside the system. Then, for example, by flowing a high-temperature liquid from outside the system into the annular bag 42, hot pressing can be performed on the object to be pressed by the liquid back roller 4, and conversely, by flowing the low-temperature liquid, the liquid back roller In 4, the object to be pressed can be subjected to a cold press treatment, and the object to be pressed can be simultaneously subjected to the pressing and the heat treatment without using the high-frequency oscillator 5.

(3) In the above first and second embodiments, the wood W is pushed by the propelling means 22 to the liquid back roller 4.
However, a roller drive mechanism for rotating the liquid back roller 4 may be provided, and the wood W may be propelled downstream by the rotation of the liquid back roller 4 driven by the roller drive mechanism. . Further, the roller drive mechanism and the propulsion means 22 may be used in combination.

(4) In the above embodiment, the liquid is sealed in the annular bag 42 and the tube body 4a.
It is not limited to enclosing a liquid in a.
Gas may be enclosed.

(5) In the above embodiment, lumber (wood W) and plywood P are illustrated as the objects to be pressed by the pressing devices 1, 1a, 1b, 1c.
The present invention is not limited to those subjected to the pressure treatment to the wood W or the plywood P, and the laminated materials and the laminated materials (LVL, MD)
F, OSD) or particle board.

[0074]

According to the first aspect of the present invention, the pressurizing member is constituted by the rotating shaft and the deformable face material which is disposed on the outer periphery of the rotating shaft with a fluid interposed at a predetermined pressure. Therefore, when the object to be pressurized is pressed by the pressurizing body, the contact surface (pressing surface) of the deformable surface material loaded with the fluid therein against the object to be pressurized is deformed flat. The pressing area of the pressing body can be increased, and the pressing force on the pressing surface of the deformable face material can be made uniform. Accordingly, the pressing area in the case of the conventional metal pressure roller is small, and disadvantages such as low pressing processing ability due to uneven pressing force are eliminated, and while securing an improvement in productivity, Good uniform pressure can be applied to the object to be pressed.

According to the second aspect of the present invention, since the deformable face material is formed of an annular tube, it is possible to obtain a pressurized body by fitting the tube into the rotating shaft. The body can be easily manufactured, and the sealed state of the fluid inside can be easily ensured.

According to the third aspect of the present invention, since the annular tube is brought into pressure contact with the outer periphery of the rotating shaft, the rotation of the rotating shaft can be transmitted to the tube reliably.

According to the fourth aspect of the present invention, the pressurizing member is stretched around at least two rotating shafts and between the rotating shafts, and a fluid is loaded therein at a predetermined pressure. Since the tube body is formed of a deformable face material, the pressurizing surface of the pressurizing body (tube body) is increased by extending the tube body between the two rotating shafts, thereby increasing the pressing object. Pressure treatment can be performed more efficiently.

According to the fifth aspect of the present invention, at least one press-contact state is provided on the inner peripheral surface side of the tube between the two rotation shafts.
Since the pressure assisting rollers are arranged in the circumferential direction, it is possible to prevent the tube body between the two rotating shafts from rising to the object to be pressed by the pressure assisting roller. Can be more reliably subjected to pressure treatment.

According to the sixth aspect of the present invention, since the heat medium is used as the fluid sealed in the pressurized body, the object to be pressurized is a plywood in which the bonding process is performed by, for example, a pressurization process involving a heat treatment. In such a case, by using the fluid as the heating heat medium, both the pressurizing process and the heating process are simultaneously performed on the pressurized object, which can contribute to an improvement in production efficiency.

According to the seventh aspect of the present invention, the width of the deformable face material is set wider, so that the width dimension of the deformable face material is set wider than that of the object to be pressed having the maximum width to be considered. By doing so, it becomes possible to cope with any pressurized body that is considered, and the pressurized body can be made versatile.

According to the eighth aspect of the present invention, a pressing device is formed by arranging the pressing members facing each other, and the pressing object is pressed by passing the pressing object between the two pressing members. The pressure bodies are arranged so that the directions in which the rotating shafts extend are aligned, and the outer peripheral surfaces are opposed to each other with the inter-axis distance fixed,
By rotating the rotating shaft or pressing the object to be pressed and pressing the object to be pressed between the deformable surface materials, the object to be pressed is between the respective deformable surface materials of the pair of pressing bodies. Is pressurized by the deformable surface material while passing through the gap, so that a predetermined pressurizing process can be performed on the pressurized object.

When the object to be pressurized is sandwiched between the pair of pressurizing members, the deformable face material in which the fluid is loaded is deformed into a crushed state. Since the area is increased and the fluid is sealed, the pressing force on the pressing surface of the deformable face material can be made uniform. Accordingly, the pressing area in the case of the conventional metal pressure roller is small, and disadvantages such as low pressing processing ability due to uneven pressing force are eliminated, and while securing an improvement in productivity, Good uniform pressure can be applied to the object to be pressed.

According to the ninth aspect of the present invention, the pressurizing device comprises a pressurizing member and a pressurizing flat member disposed to face the outer peripheral surface of the deformable surface material, and the outer peripheral surface of the deformable surface material is provided. The first and second pressurized objects provided with an adhesive are passed in a compressed state between the first and second pressurized members between the first and second pressurized members provided with the adhesive. By passing the object between the pressing body and the pressing flat member, the first and second pressing objects are pressed in directions facing each other, and the adhesive interposed therebetween is pressed between the pressing objects. And a good adhesive action can be obtained.

According to the tenth aspect of the present invention, since the application section for applying the electromagnetic wave to the object to be pressurized is provided near the rotation axis, the object to be pressurized is supplied to the pressurizing body. By applying the electromagnetic wave from the application unit to the object to be pressurized, both the pressure treatment and the heat treatment can be simultaneously performed on the object to be pressurized. Moreover, conductive material (metal)
Since the rotating shaft is surrounded by a deformable surface material made of a non-conductive material and is separated from the pressing unit by a predetermined distance, even if the electrode of the applying unit is provided near the pressing unit, Therefore, it is possible to effectively supply the electromagnetic wave to the part where the object to be pressurized is pressurized, and a synergistic effect between the pressurization and the heating is achieved. Can be effectively pulled out.

According to the eleventh aspect of the present invention, since the propulsion means for propelling the pressurized object in the passing direction is provided, the pressurized object is propelled in the direction of the pressurized body by pressing by driving the propulsion means. Can be. According to this propulsion method, idle feeding due to slippage or the like does not occur as compared with the case where the pressurizing body of the pressurizing device is rotationally driven, and the pressurized object is supplied to the pressurizing body in a stable state. Can be.

According to the twelfth aspect of the present invention, since the moving mechanism for moving at least one of the pressing bodies in the pressing direction is provided, the driving mechanism drives the moving body of the pressing body through which the object to be pressed passes. By adjusting the gap size, it is possible to cope with various thickness dimensions of the object to be pressed, and the versatility of the pressing device can be widened.

According to the thirteenth aspect of the present invention, the pressurizing device is constituted by the shaft and the annular tube body which is disposed on the outer periphery of the shaft and has a fluid loaded therein at a predetermined pressure.
The tube body can be fitted into the shaft in a loosely fitted state without being restricted by the diameter of the shaft, and the versatility of the tube body can be increased.

[Brief description of the drawings]

FIG. 1 is a side view showing a first embodiment of a pressure device according to the present invention.

FIG. 2 is a plan view of the pressure device of FIG.

FIG. 3 is a side view showing a second embodiment of the pressurizing device according to the present invention.

FIG. 4 is a plan view of the pressing device of FIG. 3;

FIGS. 5A and 5B are diagrams showing a third embodiment of the pressurizing device according to the present invention, wherein FIG. 5A is an explanatory view in plan view, and FIG.

FIG. 6 is a view showing a fourth embodiment of the pressurizing device according to the present invention, wherein (a) is an explanatory view in plan view, and (b) is an explanatory view in side view.

7 is a partially enlarged view of a main part of the pressurizing device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 1a, 1b, 1c Pressing device 2 Base 21 Wood placing table 22 Propulsion means 23 Rectangular frame 3 Pressing structure 31 Support frame 32 Elevating means 33 Intermediate support 34 Bracket 34a Upper bracket 35 Horizontal axis 36 Cooling frame 4 Liquid back roller 41 Rotating wheel 42 Annular back 43 Support roller 44 Auxiliary roller 45 Grid electrode 5 High-frequency oscillator 51 Heating counter electrode 51a Heating upper electrode 51b Heating lower electrode 52 Activation counter electrode 52a Activation upper electrode 52b Activation lower electrode W Wood P Plywood

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Claims (13)

[Claims] 1. A pressurizing body using a fluid, comprising: a rotating shaft; and a deformable face material disposed on the outer periphery of the rotating shaft with a fluid interposed at a predetermined pressure. . 2. The pressurized body using fluid according to claim 1, wherein the deformable face material is an annular tube. 3. The pressurized body using a fluid according to claim 2, wherein the annular tube body is in pressure contact with the outer periphery of the rotating shaft. 4. A tube body comprising at least two rotating shafts and a tube body formed of a deformable surface material, which is stretched between the rotating shafts so as to be rotatable and has a fluid loaded therein at a predetermined pressure. A pressurized body using a fluid, characterized in that: 5. The pressurizing body using fluid according to claim 4, wherein at least one pressurizing auxiliary roller is provided between the two rotation shafts in a state of being pressed against an inner peripheral surface of the tube body. A pressurized body using a fluid using a fluid, wherein the pressurized body is disposed in a circumferential direction. 6. The pressurized body using a fluid according to claim 1, wherein the fluid is a heat medium. 7. The pressurized body using a fluid according to claim 1, wherein the deformable face material has a wide dimension. 8. A pressurizing device comprising the pressurizing body according to claim 1 arranged opposite to each other, and pressing a pressurized object passing between the two pressurizing bodies. 9. The pressurizing body according to claim 1, comprising: a pressurizing flat member disposed to face an outer peripheral surface of the deformable face material, wherein the outer peripheral surface of the deformable face material is provided. A pressurizing device characterized in that first and second pressurized objects provided with an adhesive are passed between the pressurized flat members in a compressed state. 10. The pressurizing device according to claim 8, wherein an application unit that applies an electromagnetic wave toward the pressurized object is provided near the rotation axis. 11. The pressurizing device according to claim 8, further comprising a propelling means for propelling the pressurized object in the passing direction. 12. The pressurizing device according to claim 8, further comprising a moving mechanism for moving at least one of the pressurizing members in a pressurizing direction. 13. A pressurizing body comprising: a shaft; and an annular tube body which is loosely fitted on the outer periphery of the shaft and has a fluid filled therein at a predetermined pressure. .