JP4844544B2 - Material supply apparatus and laminate manufacturing apparatus using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid an increase of the size of a material feeding device for feeding a sheet material. <P>SOLUTION: A peripheral length difference absorbing mechanism for absorbing a peripheral length difference between a plurality of sheet materials of a laminated roll is provided with mounting bases 35 suspended on both axial direction end sides of a winding core 6 of the laminated roll 5 via bearings and having rotation attitudes maintained by self weight or a rotation attitude maintaining means, supporting arms 31 and 33 slidably mounted on both the mounting bases 35, and tension adding rolls 32 and 34 rotatably supported by the supporting arms 31 and 33 and suspended in parallel with the winding core 6 between both of the supporting arms 31, 31 and 33, 33. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a material supply apparatus and a laminate manufacturing apparatus using the material supply apparatus.

  Conventionally, as a laminated plate manufacturing apparatus, a plurality of rolls each wound with a plurality of sheet materials and a plurality of sheet materials unwound from the plurality of rolls are laminated and thermally bonded to each other while being passed in a laminated state. And a product winding device that winds up the laminated plate from the pressing device (see, for example, Patent Document 1).

For this reason, in the material supply apparatus for supplying a plurality of sheet materials to the press apparatus, at least the number of sheet supporting members that support each roll is required, so that the plurality of roll supporting parts do not interfere with each other. In order to install, a material supply apparatus will enlarge.
JP-A-5-42555 Japanese Patent Laid-Open No. 9-1590

  Therefore, the present applicant forms a roll by winding it in a roll state in a state in which a plurality of sheet materials are laminated, and the laminated roll is mounted on the laminated roll support part. I came up with a way to pull out.

  According to this method, since a plurality of roll support portions can be combined as one laminated roll support portion, the apparatus can be greatly reduced in size. However, when the sheet material is unwound from such a laminating roll, the amount of unwinding increases as the outer sheet material increases due to the circumferential length difference of each sheet material. There is a risk that wrinkles and creases may be formed when the layers are heat pressed.

  In order to absorb the difference in circumference, a mechanism provided with a circumference difference suction mechanism (see, for example, Patent Document 2) can be considered, but the applicant of the present invention has a mechanism as shown in FIG. 13 as the circumference difference absorption mechanism. I came up with it. In the circumferential length difference absorbing mechanism shown in FIG. 13, a tension applying roll 32 is axially supported on a support arm 31B that is rotatably supported, and the tension adding roll 32 is pressed against a sheet material 4b where slackening occurs. As a result, the slack of the sheet material 4b can be absorbed.

However reluctant, in this case, the force F ₁ that due to gravity is biased to the sheet material 4b is, for changing the rotation position of the supporting arm 31B, there is a fear that the urging force is too smaller or too large There is a possibility that a scene that is inferior in slack absorption may occur.

  This invention is made paying attention to such a subject, and it aims at provision of the manufacturing apparatus of the laminated board which is excellent in the slack absorption of a sheet material, and the material supply apparatus used for this.

The invention according to claim 1 is a material supply device that unwinds and supplies each sheet material from a laminating roll that is wound in a roll shape around a core in a state where a plurality of sheet materials are laminated, A circumferential length difference absorbing mechanism that absorbs a circumferential length difference between a plurality of sheet materials is provided, the circumferential length difference absorbing mechanism including a mounting base suspended at both axial ends of the core via bearings, and the both mountings A support arm that is slidably mounted on the base, and a tension that is rotatably supported by the support arm and is suspended between the support arms in parallel with the winding core and presses against the sheet material to apply tension. And a roll.

  Invention of Claim 2 is a material supply apparatus of Claim 1, Comprising: The biasing means which urges | biases the said tension | tensile_strength roll to the said sheet material in the direction which absorbs the slack of the said sheet material is provided. It is characterized by.

  A third aspect of the present invention is the material supply apparatus according to the second aspect, wherein the urging means is a spring member.

  According to a fourth aspect of the present invention, there is provided the material supply apparatus according to the second aspect, wherein the urging means is a driving means capable of controlling the urging force.

  A fifth aspect of the present invention is the material supply apparatus according to any one of the second to fourth aspects, wherein the sliding direction of the support arm is a horizontal direction.

  A sixth aspect of the present invention is the material supply apparatus according to any one of the second to fifth aspects, wherein the material supply apparatus is rotatably supported by the mounting base and parallel to the core between the two mounting bases. An intermediate roll suspended on the sheet material, further comprising an intermediate roll contacting the sheet material from a side opposite to the tension applying roll.

  Invention of Claim 7 is a material supply apparatus of Claim 6, Comprising: The said intermediate | middle roll is arrange | positioned so that it may substantially circumscribe the outer peripheral surface at the time of the largest winding of the said lamination | stacking roll. It is a feature.

  Invention of Claim 8 is a manufacturing apparatus of a laminated board, Comprising: The state which laminated | stacked the material supply apparatus of any one of Claims 1-7, and the some sheet material from the said material supply apparatus And a pressing device that heat-presses a plurality of sheet materials to form a laminated plate by being hot-pressed while being passed through.

  According to the laminated plate manufacturing apparatus and the material supply apparatus of the present invention, when the multilayer workpiece is pulled out from the laminated roll, the circumferential length difference absorbing mechanism that absorbs the circumferential length difference of the plurality of sheet materials drawn out from the laminated roll is provided. The circumferential length difference generated between the plurality of sheet materials constituting the multilayer work can be absorbed by the circumferential length difference absorbing mechanism. As a result, the laminated state of the multilayer workpiece can be stabilized at the sheet inlet of the downstream press device, and manufacturing defects such as wrinkles entering the manufactured laminated plate can be prevented.

  Further, according to the present invention, since the support arm that supports the tension applying roll is slidably supported with respect to the mounting base, the posture of the support arm does not change, and the pressure contact with the sheet material caused by gravity is achieved. The load does not change, and the sag absorbing performance is improved.

  Embodiments of the present invention will be described below with reference to the drawings.

(First embodiment)
The manufacturing apparatus of the laminated board of 1st Embodiment is demonstrated referring FIGS.

"Outline of laminated board manufacturing equipment"
First, the overall structure of the laminate manufacturing apparatus 10 of the present embodiment will be schematically described. As shown in FIG. 2, the laminated board manufacturing apparatus 10 according to the present embodiment includes a material supply device 12, a press device 13, and a product winding device 14.

  The material supply device 12 unwinds the multilayer workpiece 8 (a laminate of a plurality of sheet materials 4a, 4b, and 4c) from each lamination roll 5 and supplies it to the workpiece supply port of the press device 13. Is a laminate 9 by heat-welding (laminating) a plurality of sheet materials 4a, 4b, 4c constituting the multilayer workpiece 8 by thermocompression bonding while passing the multilayer workpiece 8 from the material supply device 12 Thus, the laminate 9 thus laminated is wound up by the product winding device 14.

  In addition, the manufacturing method of the lamination | stacking roll 5 is performed by winding up to the core 6 in the roll shape in the state which laminated | stacked the several elongate sheet material 4a, 4b, 4c as shown in FIG. As shown in FIG. 1, a laminating roll manufacturing apparatus 1 for manufacturing the laminating roll 5 includes single-layer rolls 3a, 3b, and 3c in which the sheet materials 4a, 4b, and 4c are separately wound into rolls. Single-layer roll support portions 2a, 2b, 2c to be pivotally supported, and multi-layer roll support portions 7 that support the core 6 for winding in a state in which the sheet materials 4a, 4b, 4c from the single-layer rolls are laminated, As a main component. In this example, the plurality of sheet materials 4a, 4b, and 4c are three, and are composed of a copper foil 4a, a polyimide film 4b, and a copper foil 4c. Therefore, the laminated board 9 manufactured with the manufacturing apparatus 10 shown in FIG. 2 becomes a double-sided copper foil laminated board (laminate sheet) by which both surfaces of the polyimide film 4b become the copper foil layers 4a and 4c. In addition, when the sheet materials 4a, 4b, and 4c are the above-described materials, the thermocompression treatment by the press device 13 is performed in the range of pressure 20 to 80 [bar], temperature 180 to 400 [° C], and time 1 to 10 [min]. It is desirable to do within.

"Material supply device"
Next, the material supply device 12 will be described in more detail.

  As shown in FIGS. 2 and 4, the material supply device 12 includes laminated roll support portions 21 and 23 that rotatably support the core 6 of the laminated roll 5. Laminating roll support portions 21 and 23 are provided on both axial ends of the core 6, and the laminating roll support portion 21 on one axial end side is laminated on the mounting wall 20 erected vertically from the floor surface. Embedded in each roll 5, the laminated roll support portion 23 on the other end side in the axial direction is formed in a columnar shape erected vertically from the floor surface or ceiling for each laminated roll 5.

  The laminated roll support portions 21 and 23 pivotally support the winding core 6 of the laminated roll 5 via the rotating shaft 25. That is, the core 6 of the laminated roll 5 is formed in a hollow shape (cylindrical in this example), and the rotating shaft 25 penetrating through the inside of the core 6 is supported by the laminated roll support portions 21 and 23. The rotary shaft 25 has a stopper (not shown) that protrudes and protrudes in the radial direction so as to engage with the inner peripheral surface of the core 6, and the rotary shaft 25 and the core 6 are projected when the stopper projects in the radial direction. And the rotating shaft 25 and the winding core 6 rotate integrally.

  At least one of the laminating roll support portions 21 and 23 has a built-in brake means (not shown) for applying a brake against the winding of the laminated plate 9 by the product winding device 14. 8 is put into the press device 13 in a stretched state.

  However, since the multilayer workpiece 8 is formed of a plurality of sheet materials 4a, 4b, and 4c (thickness t1, t2, and t3), the outer sheet material 4c is an intermediate sheet when unrolled from the laminated roll 5. The material 4b is also unwound longer by 2π × (t2) / 2 per turn, and the inner sheet material 4a is unwound longer by 2π × (t2 + t3) / 2 per turn.

  Therefore, when the multi-layer workpiece 8 is inserted into the press device 13, the sheet material 4a, 4b, 4c is not accurately laminated at the workpiece input port of the press device 13 and wrinkles are generated, resulting in poor molding of the laminated plate. May cause. Therefore, in order to prevent such a problem from occurring, the material supply device 12 of the present embodiment absorbs the circumferential length difference absorption that absorbs the circumferential length differences of the plurality of sheet materials 4a, 4b, and 4c of the laminated roll 5. A mechanism 30 is provided.

"Circumferential length absorption mechanism"
Next, the circumference difference absorbing mechanism 30 will be described with reference to FIGS.

  The circumferential length difference absorbing mechanism 30 of the present embodiment is attached to the core 6 of the laminated roll 5 via an attachment base 35, and more specifically has the following configuration.

  In the circumferential length difference absorbing mechanism 30 of the present embodiment, as shown in FIGS. 4 to 8, the opposite ends are suspended on both axial ends of the core 6 of the laminated roll 5 via bearings 39 and the rotation posture is maintained by its own weight. A pair of plate-like mounting bases 35 are provided. Intermediate rolls 36 and 37 are supported on the pair of opposing mounting bases 35 so as to be parallel to the core 6 in a suspended state. In addition, a pair of support arms 31 and a pair of support arms 33 are slidably supported by a pair of opposing mounting bases 35 along a slide rail 47 formed on the mounting base 35. The axially opposite ends of the pair of support arms 31 and 33 are pivotally supported in a state where the tension applying rolls 32 and 34 are installed so as to be parallel to the core 6.

The intermediate rolls 36 and 37 guide the sheet materials 4b and 4c drawn out from the laminated roll 5 in the drawing direction, and abut on the outer peripheral surfaces of the sheet materials 4b and 4c. On the other hand, the tension applying rolls 32 and 34 are pressed against the sheet materials 4b and 4c that have passed through the intermediate rolls 36 and 37 from the side opposite to the intermediate rolls 36 and 37 (that is, the inner peripheral surfaces of the sheet materials 4b and 4c). Tension. Here, the number of the intermediate rolls 36 and 37 and the tension applying rolls 32 and 34 may be the same as the number of the sheet materials 4a, 4b and 4c. In this example, the intermediate rolls 36 and 37 and the tension applying rolls are used. 32, 34 are provided for each of the sheet materials 4b, 4c except for the innermost sheet material 4a among the plurality of sheet materials 4a, 4b, 4c, and the innermost sheet material 4a is a guide roll and tension. Since the product take-up device 14 winds through the press device 13 without passing through the additional rolls, the number of intermediate rolls 36 and 37 and tension applying rolls 32 and 34 are the number of sheet materials 4a, 4b, and 4c. 1 less than That is, in this example, the number of sheet materials of the multilayer workpiece 8 is two, and the intermediate rolls 36 and 37 and the tension applying rolls 32 and 34 are two, which is one less.

Then, the tension applying rolls 32 and 34 are urged by air cylinders 42 and 42 as urging means in a direction to absorb slack caused by the difference in circumferential length of the sheet materials 4b and 4c. In the present embodiment, the string members (for example, wires) 43 and 45 connected to the support arms 31 and 33 are pulled by the air cylinders 42 and 42. In this case, the urging forces Fp ₁ and Fp ₂ of the tension applying rolls 32 and 34 are determined by the air pressure of the air pump applied to the air cylinders 42 and 42, and are always constant regardless of the slide position (see FIG. 5).

In addition to the urging forces Fp ₁ and Fp ₂ from the air cylinders 42 and 42, the sheet materials 4 b and 4 c have the weights m ₁ g and m ₂ g of the support arms 31 and 33 and the tension applying rolls 32 and 34. The resulting biasing forces Fa ₁ and Fa ₂ are applied (see FIG. 5).

That is, the urging force Fp ₁ from the air cylinder 42 and the urging force Fa ₁ resulting from the weight m ₁ g of the support arm 31 and the tension applying roll 32 are applied to the sheet material 4b, and the sheet material 4c includes the air force F _1. The urging force Fp ₂ from the cylinder 42 and the urging force Fa ₂ due to the own weight m ₁ g of the support arm 33 and the tension applying roll 34 are applied (see FIG. 5).

The urging forces Fa ₁ and Fa ₂ resulting from the gravity are constant regardless of the slide positions of the support arms 31 and 33 because the rotational postures of the support arms 31 and 33 do not change. Therefore, the urging force Fp ₁ + Fa ₁ applied to the sheet material 4b and the urging force Fp ₂ + Fa ₂ applied to the sheet material 4c are constant.

  By such a circumferential length difference absorbing mechanism 30, the unwinding length between the plurality of sheet materials 4a, 4b, 4c charged into the press device 13 is absorbed. Specifically, as shown in FIG. 5 → FIG. 6 → FIG. 7, as the multilayer work 8 is unwound from the laminated roll 5, the outer sheet material becomes more slack, so that it is supported to absorb this. The arms 31 and 33 slide. Thereby, it is prevented that wrinkles generate | occur | produce in the laminated board 9 manufactured.

  Next, effects of the present embodiment will be enumerated.

  (1) The laminated sheet manufacturing apparatus 10 and the material supply apparatus 12 used for the laminated sheet manufacturing apparatus 10 of the present embodiment absorb a circumferential length difference between the plurality of sheet materials 4a, 4b, and 4c drawn from the laminated roll 5. 30. Therefore, the circumferential length difference absorbing mechanism 30 can absorb the circumferential length difference generated between the plurality of sheet materials 4 a, 4 b, 4 c constituting the multilayer workpiece 8 when the multilayer workpiece 8 is pulled out from the laminated roll 5. As a result, the laminated state of the multilayer workpiece 8 can be stabilized at the workpiece inlet of the press device 13, and manufacturing defects such as wrinkles entering the manufactured laminated plate 9 can be prevented.

  (2) In this embodiment, the circumference difference absorbing mechanism 30 is attached to the core 6 of the laminated roll 5. Therefore, since the circumference difference absorbing mechanism 30 can be disposed at a position shifted in the axial direction with respect to the laminated roll support portions 21 and 23, even if the plurality of laminated roll support portions 21 and 23 are disposed close to each other in the radial direction. The circumference difference absorbing mechanism 30 can be prevented from interfering with the laminated roll support portions 21 and 23, and the material supply device 12 can be prevented from being enlarged.

(3) Here, as in the comparative example shown in FIGS. 13A and 13B, in the structure in which the support arm 31B is rotatably attached to the mounting base 35, the sheet material is caused by gravity. The urging force F ₁ (that is, the component force F _{1 of the} support arm 31B and the tension-adding roll 32 with its own weight m ₀ in the rotation direction of the support arm 31B) varies depending on the rotation posture of the support arm 31B. Therefore, the pressure contact load may increase or decrease depending on the rotation posture of the support arm 31B.

  On the other hand, the circumferential length difference absorbing mechanism of the present embodiment is supported by the support arms 31 and 33 slidably mounted on the both mounting bases 35, and rotatably supported by the support arms 31 and 33. Tension applying rolls 32 and 34 suspended in parallel with the core 6 between 31 and 33 and 33. That is, the pair of support arms 31, 31, 33, and 33 that pivotally support the tension applying rolls 32 and 34 are slidably supported with respect to the mounting base 35 while maintaining the posture.

Therefore, since the pressure loads Fa ₁ and Fa ₂ applied to the sheet materials 4b and 4c due to gravity do not change, the pressure loads can be prevented from changing, and the sagging absorption performance of the sheet materials 4b and 4c can be improved. .

(4) In the present embodiment, the tension applying rolls 32 and 34 are urged so that the tension applying rolls 32 and 34 are pressed against the sheet materials 4b and 4c in a direction in which the slack of the sheet materials 4b and 4c is absorbed. This is a structure including urging means 42, 42. Therefore, even when the pressing loads Fa ₁ and Fa ₂ caused by gravity are reduced by the rotation posture of the mounting base 35, it is possible to apply an appropriate pressing load to the sheet materials 4b and 4c.

  (5) In the present embodiment, since the urging means 42 and 42 are driving means 42 capable of controlling the urging force, it is easy to cope with a change in the rotation posture of the mounting base 35 and other design changes. There is an advantage that an appropriate biasing force can be applied.

  (6) In the present embodiment, since the driving means 42 is the air cylinder 42, the pressure contact load applied to the sheet materials 4b and 4c can be made constant regardless of the sliding position of the tension applying rolls 32 and 34. it can. Therefore, the sag absorbing performance is excellent as compared with the structure using the spring member in which the pressure contact load changes according to the slide position.

  (7) In the present embodiment, intermediate rolls 36 and 37 that are rotatably supported by the mounting base 35 and are suspended in parallel with the winding core 6 between the mounting bases 35, and the tension applying rolls 32 and 34. An intermediate roll that abuts against the sheet materials 4b and 4c from the opposite side is further provided. Therefore, the amount of slack absorption of the sheet materials 4b and 4c can be doubled by the combination of the tension-applying rolls 32 and 34 and the intermediate rolls 36 and 37, compared to the structure having only the tension-adding rolls 32 and 34.

  (8) In the present embodiment, each of the sheet materials 4b and 4c excluding the innermost sheet material 4a in the multilayer work (consisting of a plurality of laminated sheet materials 4a, 4b, and 4c) drawn from the lamination roll 5 is used. On the other hand, intermediate rolls 36 and 37 and tension applying rolls 32 and 34 are provided. That is, the number of intermediate rolls 36 and 37 and tension applying rolls 32 and 34 is one less than the number of sheet materials. Therefore, since the tension applying rolls 32 and 34 and the support arms 31 and 33 that support the tension applying rolls 32 and 34 are minimized, the number of parts is reduced, which contributes to cost reduction.

  (9) Moreover, in this embodiment, the attachment base 35 is detachable with respect to the bearing part 38 with which the axial direction both ends of the winding core 6 were mounted | worn. Therefore, the circumference difference absorbing mechanism 30 can be attached to and detached from the core 6 of the laminated roll 5, so that the circumference difference absorbing mechanism 30 can be used only by replacing the laminated roll 5.

  (10) In this embodiment, the mounting base 35 of the circumferential length difference absorbing mechanism 30 is suspended from the core 6 via the bearing 39, and the posture is kept constant by the weight of the circumferential length difference absorbing mechanism 30. However, a rotation posture adjusting means for adjusting the rotation posture of the circumference difference absorbing mechanism 30 may be provided. In the structure provided with the rotation attitude adjusting means, the circumference difference absorbing mechanism 30 can be reliably fixed to a desired rotation attitude, the stable operation of the circumference difference absorbing mechanism 30 can be obtained, and the manufactured laminated board There is an advantage that wrinkles are less likely to enter 9.

  Next, another embodiment according to the present invention will be described. In the following embodiments, the same components as those in the first embodiment are denoted by the same reference numerals, and the description of the configurations and the operation and effects thereof are omitted.

(Second Embodiment)
The second embodiment shown in FIG. 8 differs from the first embodiment in that the driving means are electric motors 41 and 41 that wind the wires 43 and 45. According to such 2nd Embodiment, in addition to the effect similar to 1st Embodiment, the electric motors 41 and 41 have the advantage which can finely adjust urging | biasing force with electric power.

(Third embodiment)
In the third embodiment shown in FIG. 9, the urging means for urging the tension applying rolls 32 and 34 in the direction of absorbing the slack of the sheet materials 4b and 4c is not the driving means but the spring members 53 and 53. This is different from the first and second embodiments. Compared with the first and second embodiments, the third embodiment has an advantage that the structure is simplified and the manufacturing cost of the device is kept low.

(Fourth embodiment)
In the fourth embodiment shown in FIG. 10, the tension applying rolls 32 and 34 are in pressure contact with the sheet materials 4 b and 4 c by the weights of the tension applying rolls 32 and 34 and the support arms 31 and 33 without providing a biasing means. is there. In the fourth embodiment, there is an advantage that the structure is further simplified and the manufacturing cost of the device can be kept low as compared with the first to third embodiments.

(Fifth embodiment)
In the first to fourth embodiments, the structure includes two sets of tension applying rolls 32 and 34 corresponding to the three sheet materials 4a, 4b, and 4c. As in the fifth embodiment, the structure may include only one set of tension applying rolls 32 corresponding to the two sheet materials 4a and 4b.

(Sixth embodiment)
In the sixth embodiment shown in FIG. 12, the rotation posture is maintained by the weight of the circumference difference absorption mechanism 30 in that the rotation posture adjustment means 91 for adjusting the rotation posture of the circumference difference absorption mechanism 30 (mounting base 35) is provided. This is different from the first to fifth embodiments.

  The rotation posture adjusting means 91 of the present embodiment is configured to include a telescopic rod 91. The telescopic rod 91 includes a base portion 91a pivotally attached to a fixed point (in this example, a floor surface), and a protruding portion 91b that is slidably supported with respect to the base portion 91a. The protruding / exiting portion 91 b is connected to the mounting base 35 of the circumferential difference absorbing mechanism 30.

  Thereby, the rotation attitude | position of the circumference difference absorption mechanism 30 can be adjusted by sliding the protruding part 91b with respect to the base part 91a, and in this embodiment, the slide rail 47 seems to be arrange | positioned in a horizontal direction. Has been adjusted.

  As described above, in the sixth embodiment, since the sliding direction of the support arm 31 (tension applying roll 32) is adjusted to be horizontal, the support arm 31 (tension adding roll 32) is not structured to move by gravity. Therefore, the force applied to the tension applying roll 32 is only the urging means (not shown), and there is an advantage that the tension applied to the tension adding roll can be easily adjusted.

  Further, in the sixth embodiment, the intermediate roll 36 is disposed so as to circumscribe the outer peripheral surface of the laminated roll 5 in the maximum winding state. In the structure in which the intermediate roll 36 is arranged so as to circumscribe the outer peripheral surface of the laminated roll 5 in the maximum winding state, the intermediate roll 36 does not circumscribe the outer peripheral surface of the laminated roll 5 in the maximum winding state. There is an advantage that the amount of slack recovery caused by the difference in circumference can be increased as compared with the structure in which the distance is separated.

  As mentioned above, although this invention was demonstrated taking the above-mentioned embodiment as an example, this invention is not limited only to the above-mentioned embodiment.

  For example, in the above-described embodiment, the sheet material is a copper foil and a polyimide film, but it is needless to say that the sheet material can be applied to other material sheet materials.

  In the above-described embodiment, the multi-layer workpiece is composed of two or three sheet materials. However, if the multi-layer workpiece is composed of a plurality of sheet materials, the present invention can be applied regardless of the number of sheet materials.

  In the above-described embodiment, two laminated plates are laminated at the same time. However, in the present invention, one laminated plate may be laminated.

  Further, in the above-described embodiment, the winding core is attached to the laminated roll support portion via the rotating shaft. However, in the present invention, the winding core is directly attached to the laminated roll support portion not via the rotating shaft. Also good.

  In the above-described embodiment, the bearing portion 38 includes the bearing 39 that is press-fitted and fixed to the core 6, and the plate-shaped bearing mounting base 40 that is fixed to the outer peripheral side of the bearing 39. However, in the present invention, the bearing portion 38 may be constituted only by the bearing 39 as long as the mounting base 35 is capable of detachably fixing the bearing portion 38.

  Further, in the first embodiment, the mounting base 35 of the circumferential length difference absorbing mechanism 30 makes the bearing portion 38 of the core 6 of the laminated roll 5 detachable, but the mounting base 35 is attached to the core 6 of the laminated roll 5. On the other hand, the present invention can be applied to a structure that is not detachable.

  In the above-described embodiment, in order to minimize the number of guide rolls, tension applying rolls, and support arms, the number of guide rolls, tension applying rolls, and support arms is one less than the number of sheets constituting the multilayer work. However, in the present invention, the number of sheets and the number of guide rolls, tension applying rolls, and support arms may be the same or larger.

  In addition, it is needless to say that other embodiments, examples, operation techniques, and the like made by those skilled in the art based on the above embodiment are all included in the scope of the present invention.

It is a schematic diagram of the lamination roll manufacturing apparatus used for the manufacturing apparatus of the laminated board of 1st Embodiment of this invention. The schematic diagram of the manufacturing apparatus of the laminated board of this embodiment. The schematic diagram explaining roughly the manufacturing principle of the laminated board manufactured with the manufacturing apparatus of the same laminated board. The perspective view of the circumference difference absorption mechanism used for the material supply apparatus of the manufacturing apparatus of the same laminated board. It is a side view of the same circumference difference absorption mechanism, Comprising: The figure which shows the initial stage state of unwinding of a multilayer workpiece. It is a side view of the same circumference difference absorption mechanism, Comprising: The figure which shows the state of unwinding of a multilayer workpiece | work. It is a side view of the same circumference difference absorption mechanism, Comprising: The figure which shows the state of the unwinding of a multilayer workpiece | work. The side view of the circumference difference absorption mechanism of 2nd Embodiment of this invention. The side view of the circumference difference absorption mechanism of 3rd Embodiment of this invention. The side view of the circumference difference absorption mechanism of 4th Embodiment of this invention. The side view of the circumference difference absorption mechanism of 5th Embodiment of this invention. The side view of the circumference difference absorption mechanism of 6th Embodiment of this invention. It is a side view of the comparative example of a circumference difference absorption mechanism, (a) is a figure which shows the initial stage state of unwinding of a multilayer workpiece, (b) is a figure which shows the state of unwinding of a multilayer workpiece.

Explanation of symbols

4a ... Sheet material (copper foil)
4b ... Sheet material (polyimide film)
4c ... Sheet material (copper foil)
DESCRIPTION OF SYMBOLS 5 ... Lamination roll 6 ... Core 10 ... Laminate board manufacturing apparatus 12 ... Material supply apparatus 13 ... Press apparatus 14 ... Product winding apparatus 30 ... Circumference difference absorption mechanism 31, 31 ... Support arm 32 ... Tension addition roll 33, 33 ... Support arm 34 ... Tension applying roll 35, 35 ... Mounting base 36 ... Intermediate roll 37 ... Intermediate roll 41 ... Electric motor (drive means, biasing means)
42 ... Air cylinder (drive means, biasing means)
47 ... slide rail 53 ... spring member (biasing means)
47 ... Slide rail 91 ... Rotational posture adjusting means

Claims (8)

A material supply device that unwinds and supplies each sheet material from a laminating roll that is wound in a roll shape around the core in a state where a plurality of sheet materials are laminated,
A circumference difference absorption mechanism for absorbing a circumference difference of a plurality of sheet materials of the laminated roll is provided,
The circumference difference absorption mechanism is
A mounting base suspended via bearings at both axial ends of the core;
A support arm slidably mounted on both the mounting bases;
A tension applying roll that is rotatably supported by the support arm and is suspended in parallel with the winding core between the two support arms, and applies pressure to the sheet material to apply tension .
A material supply device comprising: The material supply device according to claim 1,
An apparatus for supplying a material, comprising: an urging unit that urges the tension applying roll to the sheet material in a direction to absorb the slack of the sheet material. The material supply device according to claim 2,
The material supply device according to claim 1, wherein the biasing means is a spring member. The material supply device according to claim 2,
The material supply device according to claim 1, wherein the biasing means is a drive means capable of controlling a biasing force. It is a material supply apparatus of any one of Claims 2-4, Comprising:
The material supply apparatus according to claim 1, wherein a sliding direction of the support arm is a horizontal direction. It is a material supply apparatus of any one of Claims 2-5,
An intermediate roll that is rotatably supported by the mounting base and is suspended in parallel with the winding core between the two mounting bases, and further includes an intermediate roll that contacts the sheet material from the opposite side of the tension applying roll. A material supply device comprising: The material supply device according to claim 6,
The material supply device according to claim 1, wherein the intermediate roll is disposed so as to substantially circumscribe the outer peripheral surface at the time of maximum winding of the laminated roll. A laminate manufacturing apparatus,
The material supply device according to any one of claims 1 to 7,
A press device that heat-bonds a plurality of sheet materials to each other by heat-pressing while passing a plurality of sheet materials from the material supply device in a stacked state; and
An apparatus for manufacturing a laminated board comprising:

Images