JP2015196364A - Mold, manufacturing method of unit laminate, manufacturing method of seismic isolator, and positioning device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mold which prevents a molding material from unintentionally adhering to the inner peripheral surface of the open hole in an insert material.SOLUTION: A mold 20 includes a first mold part 22 and a second mold part 23, between which a cavity 21 is formed. A molding material 27 is supplied onto an insert material 15 disposed on a first cavity surface in the cavity so as to laminate a molding material layer. A positioning device 24 to be inserted in an open hole 15a formed in the insert material 15 is disposed on the first cavity surface 25. The positioning device 24 includes a stationary part 31 fixed to the first mold part 22, a movable part 32 disposed movable in the mold opening/closing direction in the stationary part 31, and an elastic seal part 33 held between the stationary part 31 and the movable part 32. The movable part 32 is pressed toward the stationary part 31 along the mold opening/closing direction by the molding material 27 supplied onto the insert material 15. Consequently the elastic seal part 33 is elastically deformed between the stationary part 31 and the movable part 32, so as to be contacted with the inner peripheral surface of the open hole 15a.

Description

  The present invention relates to a mold, a method for manufacturing a unit laminate, a method for manufacturing a seismic isolation device, and a positioning device.

  Conventionally, for example, a mold as shown in Patent Document 1 below is known. The mold includes a first mold part and a second mold part which are closed so as to be openable and closable and form a cavity therebetween. In this mold, a unit laminated body is formed by supplying a molding material and laminating a molding material layer on an insert material disposed on a first cavity surface that defines a cavity in the first mold portion in the cavity. Form.

JP 2010-179524 A

However, when an insert material in which a through hole is formed is used when forming a unit laminate body using the conventional mold, the molding material enters the through hole of the insert material and enters the inside of the through hole. There is a possibility of unintentionally sticking to the peripheral surface.
In this way, if the molding material is unintentionally fixed to the inner peripheral surface of the through hole of the insert material, there is a possibility that the fixed molding material may interfere with the work of the subsequent process or affect the quality. is there. Although it is possible to remove the fixed molding material, in this case, it takes time.

  The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a mold capable of suppressing a molding material from unintentionally adhering to an inner peripheral surface of a through hole of an insert material. To do.

In order to solve the above problems, the present invention proposes the following means.
A mold according to the present invention includes a first mold part and a second mold part that are closed so as to be openable and closable and form a cavity therebetween, and the cavity is defined in the first mold part within the cavity. A mold for forming a unit laminate body by supplying a molding material and laminating a molding material layer on an insert material arranged on a first cavity surface to be formed, which is arranged on the first cavity surface A positioning device that is inserted through a through hole formed in the insert material, the positioning device being provided in a fixed portion fixed to the first mold portion, and provided in the fixed portion so as to be movable in a mold opening / closing direction. An elastic seal portion sandwiched between the fixed portion and the movable portion in the mold opening / closing direction, and the movable portion is formed by the molding material supplied on the insert material, Front along mold opening / closing direction By being pressed against the stationary portion, said elastic seal portion, characterized in that abut the inner peripheral surface of the through hole is elastically deformed between said stationary portion and the movable portion.

In this case, the insert material is first positioned on the first cavity surface by performing an arrangement process in which the insert material is disposed on the first cavity surface and the positioning device is inserted into the through hole. Then, the supply process which supplies a molding material on an insert material is implemented. At this time, the movable part is pressed against the fixed part side along the mold opening and closing direction by the molding material, and the elastic seal part is brought into contact with the inner peripheral surface of the through hole, so that the positioning device can insert the elastic part into the through hole of the insert material. Intrusion of the molding material can be suppressed, and the molding material can be prevented from unintentionally adhering to the inner peripheral surface of the through hole of the insert material. Thereby, a unit laminated body can be formed with high precision, for example.
Further, according to this mold, the elastic seal portion is elastically deformed between the fixed portion and the movable portion and brought into contact with the inner peripheral surface of the through hole during the supply step. The elastic seal portion can have a smaller diameter than the through hole and can be separated from the inner peripheral surface of the through hole. Therefore, it is possible to easily insert the positioning device into the through hole of the insert material during the arrangement step, and productivity can be improved.
Also, as described above, the elastic seal portion can be separated from the inner peripheral surface of the through hole during the arrangement step, so when inserting the positioning device into the through hole of the insert material in the arrangement step, It is possible to suppress friction between the elastic seal portion and the inner peripheral surface of the through hole. Thereby, it becomes possible to suppress wear of the elastic seal part, and for example, the replacement frequency of the elastic seal part can be reduced to reduce the cost of the unit laminated body.
Also, during the supply process, the elastic seal part is elastically deformed by pressing the movable part against the molding part supplied onto the insert material along the mold opening and closing direction to the fixed part side. For example, the elastic seal part is elastically deformed. Therefore, it is not necessary to provide a separate mechanism for the purpose, and the structure of the mold can be simplified.

  Further, a restricting portion that restricts the amount of movement of the movable portion toward the side opposite to the fixed portion along the mold opening / closing direction may be provided between the fixed portion and the movable portion.

  In this case, since the restriction portion is provided between the fixed portion and the movable portion, for example, when the mold is opened after the supplying step, the movable portion is excessively disposed on the side opposite to the fixed portion along the mold opening / closing direction. It is possible to prevent the movable part from moving away from the fixed part.

  In addition, a filling channel that fills the cavity with the molding material is opened on the second cavity surface that defines the cavity in the second mold part, and the movable part is disposed in the filling channel. An edge cut portion to be fitted may be provided.

  In this case, since the movable portion is provided with the edge cut portion, the molding material supplied onto the insert material and the filling flow channel are obtained by fitting the edge cut portion into the filling flow channel after the supplying step. It is possible to divide the molding material located inside and to cut both edges, and to easily form the unit laminate body with higher accuracy.

  Further, the edge cutting portion is an end portion on the side opposite to the fixed portion along the mold opening / closing direction in the movable portion, and is fitted into a filling opening that opens to the second cavity surface in the filling flow path. Also good.

  In this case, the edge cutting portion is the end portion on the anti-fixed portion side along the mold opening / closing direction in the movable portion, and is fitted into the filling opening of the filling flow path, so that the molding material supplied on the insert material and the filling The molding material located in the flow path can be reliably separated.

  In addition, the inner peripheral surface of the filling opening and the outer peripheral surface of the edge cut portion may each gradually increase in diameter along the mold opening / closing direction from the non-fixed portion side to the fixed portion side.

  In this case, the inner peripheral surface of the filling opening and the outer peripheral surface of the edge cut portion are each gradually expanded in diameter from the anti-fixed portion side to the fixed portion side along the mold opening / closing direction, and thus supplied onto the insert material. The molding material and the molding material located in the filling channel can be more reliably divided.

  Moreover, the said fixing | fixed part may be fixed to the said 1st type | mold part so that attachment or detachment is possible.

  In this case, since the fixing part is detachably fixed to the first mold part, the positioning device can be exchanged according to the type of unit laminate formed by this mold, and various units can be exchanged. A laminated body can be formed easily.

  The unit laminate manufacturing method according to the present invention is a unit laminate manufacturing method in which a unit laminate is formed using the mold, and the insert material is disposed on the first cavity surface. An arrangement step of inserting the positioning device into a through hole; and a supply step of supplying the molding material onto the insert material arranged on the first cavity surface. During the supply step, the molding A material is characterized in that the movable portion is pressed toward the fixed portion along the mold opening / closing direction.

In this case, since the movable part is pressed against the fixed part side in the mold opening / closing direction during the supply process, the elastic seal part can be brought into contact with the inner peripheral surface of the through hole in the supply process. . Therefore, the positioning device can prevent the molding material from entering the through hole of the insert material, and can prevent the molding material from unintentionally adhering to the inner peripheral surface of the through hole of the insert material. Can do. Thereby, a unit laminated body can be formed with high precision, for example.
Further, during the supplying process, the elastic seal portion is elastically deformed between the fixed portion and the movable portion and brought into contact with the inner peripheral surface of the through hole. Also, the diameter can be kept small and separated from the inner peripheral surface of the through hole. Therefore, it is possible to easily insert the positioning device into the through hole of the insert material during the arrangement step, and productivity can be improved.
Also, as described above, the elastic seal portion can be separated from the inner peripheral surface of the through hole during the arrangement step, so when inserting the positioning device into the through hole of the insert material in the arrangement step, It is possible to suppress friction between the elastic seal portion and the inner peripheral surface of the through hole. Thereby, it becomes possible to suppress wear of the elastic seal part, and for example, the replacement frequency of the elastic seal part can be reduced to reduce the cost of the unit laminated body.
Also, during the supply process, the elastic seal part is elastically deformed by pressing the movable part against the molding part supplied onto the insert material along the mold opening and closing direction to the fixed part side. For example, the elastic seal part is elastically deformed. Therefore, it is not necessary to provide a separate mechanism for the purpose, and the structure of the mold can be simplified.

  Moreover, the manufacturing method of the seismic isolation device according to the present invention is a manufacturing method of a seismic isolation device that forms a seismic isolation device including a laminate formed by laminating unit laminates, wherein the unit laminate is It forms by the manufacturing method of the said unit laminated body.

In this case, since the unit laminate body is formed by the method for producing the unit laminate body, it becomes possible to prevent the molding material from unintentionally adhering to the inner peripheral surface of the through hole of the insert material, and high quality. Seismic isolation devices can be formed with high productivity.
In addition, since the unit laminate body is formed by the method of manufacturing the unit laminate body, the laminate body can be formed by laminating the unit laminate body formed with high accuracy, and the characteristics of the seismic isolation device are ensured. Can be made easier.

  The positioning device according to the present invention includes a first mold part defining a cavity in the first mold part in a cavity formed between the first mold part and the second mold part that are closed so as to be openable and closable. In a mold for forming a unit laminated body by supplying a molding material and laminating a molding material layer on an insert material arranged on the cavity surface, it is arranged on the first cavity surface and formed on the insert material A positioning device that is inserted through the through-hole, the fixed portion fixed to the first mold portion, the movable portion provided on the fixed portion so as to be movable in the mold opening and closing direction, and the fixed portion, An elastic seal portion sandwiched between the movable portion and the mold opening / closing direction, and the movable portion is arranged on the fixed portion side along the mold opening / closing direction by the molding material supplied onto the insert material. By being pressed by The serial resilient seal portion, characterized in that abut the inner peripheral surface of the through hole is elastically deformed between said stationary portion and the movable portion.

In this case, first of all, a preparatory step of arranging the positioning device on the first cavity surface is performed, and an arranging step of placing the insert material on the first cavity surface and inserting the positioning device into the through hole is performed. The insert material is positioned on the first cavity surface. Then, the supply process which supplies a molding material on an insert material is implemented. At this time, the movable part is pressed against the fixed part side along the mold opening and closing direction by the molding material, and the elastic seal part is brought into contact with the inner peripheral surface of the through hole, so that the positioning device can insert the elastic part into the through hole of the insert material. Intrusion of the molding material can be suppressed, and the molding material can be prevented from unintentionally adhering to the inner peripheral surface of the through hole of the insert material. Thereby, a unit laminated body can be formed with high precision, for example.
Further, according to this positioning device, the elastic seal portion is elastically deformed between the fixed portion and the movable portion and brought into contact with the inner peripheral surface of the through hole during the supply step. The elastic seal portion can have a smaller diameter than the through hole and can be separated from the inner peripheral surface of the through hole. Therefore, it is possible to easily insert the positioning device into the through hole of the insert material during the arrangement step, and productivity can be improved.
Also, as described above, the elastic seal portion can be separated from the inner peripheral surface of the through hole during the arrangement step, so when inserting the positioning device into the through hole of the insert material in the arrangement step, It is possible to suppress friction between the elastic seal portion and the inner peripheral surface of the through hole. Thereby, it becomes possible to suppress wear of the elastic seal part, and for example, the replacement frequency of the elastic seal part can be reduced to reduce the cost of the unit laminated body.
Also, during the supply process, the elastic seal part is elastically deformed by pressing the movable part against the molding part supplied onto the insert material along the mold opening and closing direction to the fixed part side. For example, the elastic seal part is elastically deformed. Therefore, it is not necessary to provide a separate mechanism for the purpose, and the structure of the mold can be simplified.

  According to this invention, it can suppress that a molding material adheres to the internal peripheral surface of the through-hole of insert material unintentionally.

It is a longitudinal cross-sectional view of the seismic isolation apparatus formed by the manufacturing method of the seismic isolation apparatus which concerns on one Embodiment of this invention. It is a longitudinal cross-sectional view of the metal mold | die which forms the unit laminated body with which the seismic isolation apparatus shown in FIG. 1 was equipped. It is a longitudinal cross-sectional view of the principal part of the metal mold | die shown in FIG. It is a top view of the fixing | fixed part which comprises the positioning device with which the metal mold | die shown in FIG. 2 was equipped. FIG. 5 is a longitudinal sectional view of the positioning device provided in the mold shown in FIG. 2, and is a longitudinal sectional view corresponding to the AA sectional arrow line shown in FIG. 4. It is a longitudinal cross-sectional view of the principal part of the metal mold | die shown in FIG. 2, Comprising: It is a figure which shows the state by which the rigid board has been arrange | positioned in the 1st cavity surface. It is a longitudinal cross-sectional view of the principal part of the metal mold | die shown in FIG. 2, Comprising: It is a figure which shows the state by which the movable part is pressed below by the unvulcanized rubber. It is a longitudinal cross-sectional view of the principal part of the metal mold | die shown in FIG. 2, Comprising: It is a figure which shows the state which the edge cutting part of the positioning device is fitting in the filling flow path.

  Below, with reference to FIG. 1, the seismic isolation apparatus formed by the manufacturing method of the seismic isolation apparatus which concerns on one Embodiment of this invention is demonstrated first.

As shown in FIG. 1, the seismic isolation device 10 is interposed between a lower structure (not shown) such as a foundation and an upper structure (not shown) such as a building body, and the upper structure is relative to the lower structure. It is a device that supports the horizontal movement. As a schematic configuration of the seismic isolation device 10, a lower flange plate 11 and an upper flange plate 12 which are a pair of flange plates disposed vertically opposite to each other, and a laminated layer interposed between the pair of flange plates 11 and 12 And a body 13.
1 is a central axis of the stacked body 13 extending in the stacking direction of the stacked body 13, and is hereinafter referred to as an “axis O”. A direction along the axis O is referred to as an “axial direction”, a direction orthogonal to the axis O is referred to as a “radial direction”, and a direction around the axis O is referred to as a “circumferential direction”.

  The lower flange plate 11 is a fixing member fixed to the lower structure, and the upper flange plate 12 is a fixing member fixed to the upper structure. The lower flange plate 11 and the upper flange plate 12 are rigid hard plates having a circular shape in plan view, and are made of, for example, a steel plate. Each of the lower flange plate 11 and the upper flange plate 12 is formed to have a larger diameter than the laminated body 13, and each outer peripheral portion of the lower flange plate 11 and the upper flange plate 12 has a laminated body 13 over the entire circumference. It protrudes toward the radially outer side. Further, a plurality of bolt holes (not shown) are formed in the outer peripheral portions of the lower flange plate 11 and the upper flange plate 12 at intervals in the circumferential direction. For example, the lower structure or the upper structure is provided via an anchor bolt or the like. Fixed to each.

  The laminated body 13 is a columnar body in which elastic plates (molding material layers) 14 having elasticity and rigid plates (insert materials) 15 having rigidity are alternately laminated, and is a shear deformation portion capable of shear deformation in the horizontal direction. is there. The plurality of elastic plates 14 and the rigid plate 15 are each formed in a circular shape in plan view, and the laminated body 13 is formed in a cylindrical shape extending in the axial direction. Further, the outer peripheral surface portion of the laminate 13 is provided with a covering portion 16 that covers the outer periphery of the elastic plate 14 and the rigid plate 15 over the entire periphery.

The plurality of rigid plates 15 are, for example, hard plates such as steel plates or plate materials made of hard resin, and are arranged in parallel with the lower flange plate 11 and the upper flange plate 12. The elastic plate 14 is a soft plate made of an elastic material that can be elastically deformed, and is interposed between the rigid plates 15 adjacent in the axial direction and between the rigid plate 15 and the pair of flange plates 11 and 12. The covering portion 16 is made of an elastic material that can be elastically deformed.
In the illustrated example, the elastic plate 14 and the covering portion 16 are each made of vulcanized rubber, and the unvulcanized elastic plate 14 and the unvulcanized covering portion 16 are connected to the plurality of rigid plates 15 and the flange plates 11. The elastic plate 14 and the covering portion 16, and the plurality of rigid plates 15 and the flange plates 11 and 12 are vulcanized and bonded together.

  A hole 17 extending in the axial direction is formed in the lower flange plate 11, the upper flange plate 12, and the laminated body 13. The hole 17 is a circular hole in a plan view, and is disposed at the center position of the laminated body 13 and is formed coaxially with the laminated body 13 with the axis O as a common axis. Has penetrated. In the present embodiment, circular through-holes 11a, 12a, 14a, 15a communicating with each other are formed in the respective central portions of the lower flange plate 11, the upper flange plate 12, the elastic plate 14, and the rigid plate 15, A hole 17 is formed by these through holes 11a, 12a, 14a and 15a. The hole 17 is hollow and no so-called attenuation plug or the like is disposed.

Here, the elastic plate 14 and the rigid plate 15 adjacent to each other in the axial direction in the laminated body 13 constitute one unit laminated body 18 (unit laminated rubber), and the laminated body 13 has the unit laminated body 18 as an axis. It is formed by laminating in the direction.
Hereinafter, a unit laminate mold 20 (unit laminate production apparatus) for forming the unit laminate 18 will be described with reference to FIGS. 2 to 8.

The mold 20 is closed so that it can be opened and closed, and a lower mold (first mold part) 22 and an upper mold (second mold part) 23 that form a cavity 21 between them, and a rigid plate 15 in the cavity 21. A positioning device 24 for positioning. The lower die 22 and the upper die 23 face each other in the vertical direction (die opening / closing direction), and the cavity 21 is a first cavity surface facing the upper side (the anti-fixed portion side along the die opening / closing direction) in the lower die 22. 25 and the second cavity surface 26 facing the lower side (the fixed portion side along the mold opening / closing direction) in the upper mold 23.
In the mold 20, the unvulcanized elastic plate 14 is laminated by supplying unvulcanized rubber (molding material) 27 on the rigid plate 15 disposed on the first cavity surface 25 in the cavity 21. As a result, the unit laminate body 18 is formed.

  The lower mold 22 and the upper mold 23 are provided so as to be relatively close to and away from each other. In the illustrated example, the lower mold 22 is movable in the vertical direction (mold opening / closing direction), the upper mold 23 is fixed in the vertical direction, and the lower mold 22 is opened when the lower mold 22 is lowered. The mold is closed by raising 22. In the illustrated example, when the lower mold 22 and the upper mold 23 are closed and matched with each other, the mold matching surfaces 22a and 23a of the lower mold 22 and the upper mold 23 are brought into close contact with each other.

  The upper mold 23 is provided with a filling channel 28 for filling the unvulcanized rubber 27 in the cavity 21. An injection device 29 for injecting heated unvulcanized rubber 27 into the filling flow channel 28 is connected to the filling flow channel 28, and the filling flow channel 28 extends downward from the injection device 29 in the vertical direction. It extends. The filling flow path 28 opens from the second cavity surface 26 of the upper mold 23 into the cavity 21, and the inner peripheral surface of the filling opening 28 a that opens to the second cavity surface 26 is the upper side of the filling flow path 28. The diameter gradually increases from the bottom to the bottom.

  As shown in FIGS. 3 to 5, the positioning device 24 is disposed on the first cavity surface 25 and is inserted through a through hole 15 a formed in the rigid plate 15. The positioning device 24 is sandwiched in the vertical direction between the fixed portion 31 fixed to the lower mold 22, the movable portion 32 provided in the fixed portion 31 so as to be movable in the vertical direction, and the fixed portion 31 and the movable portion 32. And an elastic seal portion 33.

  The fixing portion 31 is disposed in a portion of the lower mold 22 that faces the filling opening 28a of the filling flow path 28 in the vertical direction, and is disposed coaxially with the filling opening 28a in the illustrated example. The outer peripheral surface of the fixing portion 31 is formed in a circular shape in a plan view when the positioning device 24 is viewed from above. The fixed portion 31 is formed in a bottomed cylindrical shape, and the outer peripheral surface of the upper end portion of the fixed portion 31 is reduced in a step shape over the entire periphery of the fixed portion 31. In the fixed portion 31, the outer peripheral surface of the upper end portion and the outer peripheral surface of the portion located below the upper end portion are connected via an annular step portion 31a facing upward. In addition, the inside of the fixing | fixed part 31 is formed in the shape of a long hole.

As shown in FIG. 3, the fixing portion 31 is detachably fixed to the lower mold 22. In the present embodiment, the fixing portion 31 is fixed to the lower mold 22 via a mediating member 34, and the mediating member 34 is detachably fixed to the lower mold 22 by a fixing bolt 35.
The mediating member 34 is accommodated in an accommodation recess 36 formed in the first cavity surface 25. A female screw hole 37 into which the fixing bolt 35 is screwed is formed on the bottom surface of the housing recess 36. The mediating member 34 is formed with an insertion hole 38 through which the shaft portion of the fixing bolt 35 is inserted, and a counterbore hole 39 in which the head of the fixing bolt 35 is accommodated. Is inserted from the upper side to the lower side. Neither the head portion of the fixing bolt 35 nor the mediating member 34 protrudes upward from the portion of the first cavity surface 25 where the accommodating recess 36 is avoided.

  The fixing portion 31 is mounted in a mounting recess 40 formed on the upper surface of the mediating member 34. The fixing portion 31 is formed with a male screw portion 41 protruding downward, and this male screw portion 41 is screwed to a female screw portion 42 formed on the bottom surface of the mounting recess 40. The upper end portion of the fixed portion 31 is located above the first cavity surface 25.

  The elastic seal portion 33 is formed in an annular shape by an elastic material such as a rubber material, for example, and is fitted to the upper end portion of the fixed portion 31 from the outside in the radial direction of the fixed portion 31. The elastic seal portion 33 is exposed over the entire circumference toward the outside in the radial direction. One elastic seal portion 33 is arranged in the vertical direction. The elastic seal portion 33 is formed in a circular shape in a longitudinal sectional view along the vertical direction. The elastic seal portion 33 is supported from the inside in the radial direction by the outer peripheral surface of the upper end portion of the fixed portion 31, and is supported from the lower side by the step portion 31a.

  The movable part 32 includes a pressure receiving plate 43 and a guide shaft 44. The pressure receiving plate 43 is formed in a plate shape whose front and back faces in the vertical direction. The pressure receiving plate 43 is disposed coaxially with the fixed portion 31, and the pressure receiving plate 43 and the fixed portion 31 have the same shape in the plan view. The outer peripheral edge of the pressure receiving plate 43 is supported from below by the elastic seal portion 33. The guide shaft 44 extends downward from the pressure receiving plate 43 and is inserted into the fixed portion 31. As shown in FIGS. 3 and 5, the guide shaft 44 is formed in a rod shape arranged coaxially with the fixed portion 31, and the outer diameter of the guide shaft 44 is equal to the short diameter inside the fixed portion 31. It is smaller than the major axis. The lower end portion of the guide shaft 44 is separated from the bottom portion of the fixed portion 31 in the vertical direction.

The movable portion 32 is provided with an edge cut portion 45 that fits into the filling flow path 28. The edge cut portion 45 is an upper end portion of the movable portion 32 and is fitted into the filling opening 28 a of the filling flow path 28. In the present embodiment, the edge cut portion 45 is formed only on the pressure receiving plate 43, and the outer peripheral surface of the edge cut portion 45 gradually increases in diameter from the upper side toward the lower side.
Note that a portion of the movable portion 32 exposed in the cavity 21 may be subjected to a surface treatment so that the unvulcanized rubber 27 can be easily peeled from this portion.

As shown in FIG. 3, between the fixed portion 31 and the movable portion 32, a restriction portion 46 that restricts the amount of movement toward the upper side of the movable portion 32 is provided. The restriction portion 46 includes a restriction concave portion 47 and a restriction convex portion 48.
As shown in FIGS. 3 and 4, a pair of restriction recesses 47 are formed at the lower end portion of the inner peripheral surface of the fixing portion 31. The restriction recess 47 is formed so as to be recessed separately toward both outer sides in the short axis direction in the planar view shape inside the fixed portion 31. As shown in FIGS. 3 and 5, a pair of regulating convex portions 48 are formed at the lower end portion of the outer peripheral surface of the guide shaft 44. A pair of restricting convex portions 48 are provided with the guide shaft 44 interposed therebetween, and are arranged separately in the restricting concave portion 47.
In this restricting portion 46, when the movable portion 32 attempts to move upward with respect to the fixed portion 31, the restricting convex portion 48 is engaged with the restricting concave portion 47, so that the movable portion 32 is fixed to the fixed portion 31. Movement is restricted.

  When the fixed portion 31 and the movable portion 32 are combined, for example, first, the protruding direction in which the pair of restricting convex portions 48 protrude from the guide shaft 44 is the long-axis direction in the plan view shape inside the fixed portion 31. It arrange | positions so that it may become equivalent, and the inside of the fixed part 31 and the guide shaft 44 of the movable part 32 are made to oppose a perpendicular direction. Then, after moving the fixed portion 31 and the movable portion 32 in the vertical direction so that the guide shaft 44 of the movable portion 32 enters the inside of the fixed portion 31, the fixed portion 31 and the movable portion 32 are moved around the vertical axis. By relatively rotating, the pair of restricting convex portions 48 are separately arranged in the pair of restricting concave portions 47. After that, as shown in FIG. 5, the pair of rotation restricting bolts 49 are inserted from the radially outer side to the inside of the fixing portion 31, and the guide shaft 44 is sandwiched between the pair of rotation restricting bolts 49, thereby The rotation of the guide shaft 44 around the vertical axis is restricted while allowing the vertical movement of the 44. In the illustrated example, the end surface of the rotation restricting bolt 49 is separated from the outer peripheral surface of the guide shaft 44 and is close to the outer peripheral surface.

  Next, a method of manufacturing a unit laminate body that forms the unit laminate body 18 using a mold 20 as shown in FIG. 2 will be described.

First, the positioning device 24 is selected according to the type of the unit laminate body 18 formed by the mold 20, and a preparation process for arranging the positioning device 24 on the first cavity surface 25 is performed.
After that, as shown in FIG. 6, the rigid plate 15 is disposed on the first cavity surface 25 and the positioning device 24 is inserted into the through hole 15 a, and the rigid plate 15 is disposed on the first cavity surface 25. Positioning. At this time, the elastic seal portion 33 faces the inner peripheral surface of the rigid plate 15, and a gap is provided between the elastic seal portion 33 and the inner peripheral surface of the rigid plate 15. Further, the pressure receiving plate 43 of the movable portion 32 is located above the rigid plate 15.

  Further, as shown in FIGS. 6 and 7, a supply step of supplying unvulcanized rubber 27 onto the rigid plate 15 is performed. At the time of this supply process, as shown in FIG. 7, the unvulcanized rubber 27 is caused to press the movable portion 32 downward. Specifically, first, the lower die 22 is moved closer to the upper die 23, and the lower die 22 and the upper die 23 are stopped at an intermediate position in front of the die matching surfaces 22a and 23a being in close contact with each other. A cavity 21 is formed between 22 and the upper mold 23. Thereafter, the unvulcanized rubber 27 is filled into the cavity 21 from the filling channel 28, and then the lower die 22 is moved closer to the upper die 23. At this time, the unvulcanized rubber 27 filled into the cavity 21 from the filling opening 28a is compressed in the vertical direction between the upper surface of the rigid plate 15 and the second cavity surface 26, and the outside of the cavity 21 in the radial direction. And the pressure receiving plate 43 is pressed by the unvulcanized rubber 27.

  Then, the movable portion 32 causes the elastic seal portion 33 to elastically deform between the fixed portion 31 and the movable portion 32 so as to contact the inner peripheral surface of the through hole 15a of the rigid plate 15. The elastic seal portion 33 that is elastically deformed is sandwiched between the pressure receiving plate 43 of the movable portion 32 and the step portion 31a of the fixed portion 31 in the vertical direction, while the outer peripheral surface of the upper end portion of the fixed portion 31 and the inside of the through hole 15a. It is also pinched between the peripheral surface. The elastic seal portion 33 is pressed against the inner peripheral surface of the through hole 15a over the entire circumference of the through hole 15a, and the elastic seal portion 33 is not applied to the gap between the outer peripheral surface of the fixing portion 31 and the inner peripheral surface of the through hole 15a. Intrusion of the vulcanized rubber 27 is suppressed. In the illustrated example, the downward movement of the movable portion 32 relative to the fixed portion 31 is limited to a certain amount as the guide shaft 44 of the movable portion 32 hits the bottom of the fixed portion 31.

  When the lower mold 22 is moved closer to the upper mold 23, the mold matching surfaces 22a and 23a are in close contact with each other, and as shown in FIG. 45 is fitted into the filling channel 28. As a result, the unvulcanized rubber 27 supplied onto the rigid plate 15 and the unvulcanized rubber 27 located in the filling flow path 28 are divided and both are cut off. At this time, the unvulcanized rubber 27 stretched in layers on the rigid plate 15 is formed in the same shape as the rigid plate 15 in the plan view. The unvulcanized rubber 27 forms the unvulcanized elastic plate 14 and the unit laminate 18 is formed by so-called injection compression molding.

  Thereafter, the lower mold 22 is moved away from the upper mold 23 to open the mold, and a mold release step of releasing the unit laminate 18 is performed. At this time, even if the movable part 32 comes into close contact with the unvulcanized rubber 27 in the filling flow path 28 and the movable part 32 tries to move upward with respect to the fixed part 31, this movement 46.

When the seismic isolation device 10 is formed using the unit laminate 18, the lower flange plate 11 and the laminate 13 formed by laminating a plurality of unit laminates 18 with the covering portion 16 are covered. These are positioned between the upper flange plates 12 and vulcanized together. Thereby, the said seismic isolation apparatus 10 is formed.
In this seismic isolation device 10, the material of the rubber material constituting the elastic plate 14 and the material of the rubber material constituting the covering portion 16 are made different. For example, a high damping rubber is used for the elastic plate 14, and the covering portion A weather resistant rubber may be adopted for 16.

  As described above, according to the mold 20, the positioning device 24, and the unit laminate manufacturing method according to the present embodiment, the unvulcanized rubber 27 is pressed downward by the unvulcanized rubber 27 during the supply process. In this supplying step, the elastic seal portion 33 can be brought into contact with the inner peripheral surface of the through hole 15a. Therefore, the positioning device 24 can prevent the unvulcanized rubber 27 from entering the through hole 15 a of the rigid plate 15, and the unvulcanized rubber 27 can be prevented from entering the inner periphery of the through hole 15 a of the rigid plate 15. Unintentional sticking to the surface can be suppressed. Thereby, for example, the unit laminated body 18 can be formed with high accuracy.

  Further, since the elastic seal portion 33 is elastically deformed between the fixed portion 31 and the movable portion 32 and brought into contact with the inner peripheral surface of the through hole 15a during the supply process, the elastic seal portion 33 is used during the arrangement step. 33 can be made smaller in diameter than the through hole 15a and can be separated from the inner peripheral surface of the through hole 15a. Therefore, in the arrangement step, the positioning device 24 can be easily inserted into the through hole 15a of the rigid plate 15, and productivity can be improved.

  Further, as described above, since the elastic seal portion 33 can be separated from the inner peripheral surface of the through hole 15a during the arrangement step, the positioning device 24 is placed in the through hole 15a of the rigid plate 15 in the arrangement step. When inserting, it can suppress that a friction arises between the elastic seal part 33 and the internal peripheral surface of the through-hole 15a. Thereby, it becomes possible to suppress wear of the elastic seal portion 33. For example, it is possible to reduce the replacement frequency of the elastic seal portion 33 and to reduce the cost of the unit laminated body 18.

  Further, in the supply process, the elastic seal portion 33 is elastically deformed by pressing the movable portion 32 against the unvulcanized rubber 27 supplied onto the rigid plate 15, so that the elastic seal portion 33 is elastically deformed, for example. Therefore, there is no need to provide a separate mechanism for the purpose, and the structure of the mold 20 can be simplified.

  Further, since the restricting portion 46 is provided between the fixed portion 31 and the movable portion 32, the movable portion 32 moves excessively upward when the mold is opened after the supply process, for example. 32 can be prevented from being detached from the fixing portion 31.

  Moreover, since the said edge cut part 45 is provided in the movable part 32, the unvulcanized rubber supplied on the rigid board 15 by fitting the edge cut part 45 in the filling flow path 28 after a supply process. 27 and the unvulcanized rubber 27 located in the filling flow path 28 can be divided so as to cut both edges, and the unit laminate 18 can be easily formed with higher accuracy.

Further, since the edge cut portion 45 is an upper end portion of the movable portion 32 and is fitted into the filling opening 28 a of the filling flow path 28, the unvulcanized rubber 27 supplied onto the rigid plate 15 and the filling flow path 28 are included. The unvulcanized rubber 27 located can be reliably divided.
Further, since the inner peripheral surface of the filling opening 28a and the outer peripheral surface of the edge cut portion 45 are gradually enlarged in diameter from the upper side to the lower side, the unvulcanized rubber 27 supplied on the rigid plate 15 and the filling The unvulcanized rubber 27 located in the flow path 28 can be more reliably divided.

  In addition, since the fixing portion 31 is detachably fixed to the lower mold 22, the positioning device 24 can be exchanged according to the type of the unit laminate body 18 formed by the mold 20, and there are various types. The unit laminate body 18 can be easily formed.

Moreover, according to the manufacturing method of the seismic isolation device according to the present embodiment, the unit laminated body 18 is formed by the manufacturing method of the unit laminated body, so that the unvulcanized rubber 27 is contained in the through hole 15 a of the rigid plate 15. It is possible to suppress unintentional sticking to the peripheral surface, and the high-quality seismic isolation device 10 can be formed with high productivity.
Moreover, since the unit laminated body 18 is formed by the manufacturing method of the unit laminated body, the laminated body 13 can be formed by laminating the unit laminated body 18 formed with high accuracy. These characteristics can be easily secured.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

Further, the shape of the edge cut portion 45 is not limited to that shown in the embodiment. Further, the edge cut portion may be fitted to a portion of the filling flow channel located above the filling opening. Furthermore, the edge cut portion 45 may not be provided.
Further, the restriction unit 46 may not be provided.

Moreover, in the said embodiment, although the one elastic seal part 33 is provided in the perpendicular direction, this invention is not limited to this. For example, a plurality of elastic seal portions may be provided in the vertical direction.
Moreover, in the said embodiment, although the through-hole 15a of the rigid board 15 is formed in circular shape, this invention is not limited to this. For example, the through hole may be formed in a polygonal shape.
Moreover, in the said embodiment, although the outer peripheral surface of the fixing | fixed part 31 is formed circularly in the said planar view, this invention is not limited to this. For example, in the plan view, the outer peripheral surface of the fixed portion may be formed in a polygonal shape.

In the said embodiment, although the fixing | fixed part 31 is detachably fixed to the lower mold | type, this invention is not limited to this. For example, the fixing part may be fixed to the lower mold in a non-detachable manner, or the fixing part may be fixed to the lower mold or may be formed integrally with the lower mold.
Moreover, in the said embodiment, although the fixing | fixed part 31 is being fixed to the lower mold | type, this invention is not limited to this. For example, the fixed part may be fixed to the upper mold (first mold part).

Moreover, in the said embodiment, although the elastic board 14 consists of rubber materials, this invention is not limited to this. For example, the elastic plate can be formed of a soft resin.
In the above embodiment, the elastic plate 14 and the rigid plate 15 are each formed in a circular shape in plan view, and the laminate 13 is formed in a cylindrical shape extending in the axial direction. However, the present invention is not limited to this. I can't. For example, the elastic plate and the rigid plate may each be formed in a polygonal shape in plan view, and the laminate may be formed in a polygonal column shape.
Moreover, in the said embodiment, although the lower flange board 11 and the upper flange board 12 were made into planar view circular shape, this invention is not limited to this. For example, the lower flange plate and the upper flange plate may be polygons in plan view.

  In addition, it is possible to appropriately replace the constituent elements in the embodiment with known constituent elements without departing from the spirit of the present invention, and the above-described modified examples may be appropriately combined.

10 Seismic isolation device 14 Elastic plate (molding material layer)
15 Rigid plate (insert material)
15a Through-hole 18 Unit laminated body 20 Mold 21 Cavity 22 Lower mold (first mold part)
23 Upper mold (second mold part)
24 Positioning device 25 First cavity surface 26 Second cavity surface 27 Unvulcanized rubber (molding material)
28 Filling channel 28a Filling opening 31 Fixed part 32 Movable part 33 Elastic seal part 46 Restricting part

Claims (9)

A first mold part and a second mold part which are mold-closed so as to be openable and closable and form a cavity between each other;
Within the cavity, a unit laminate is formed by supplying a molding material and laminating a molding material layer on an insert material disposed on a first cavity surface that defines the cavity in the first mold part. A mold that performs
A positioning device disposed on the first cavity surface and inserted through a through hole formed in the insert material;
The positioning device includes a fixed part fixed to the first mold part, a movable part provided on the fixed part so as to be movable in a mold opening / closing direction, and a mold opening / closing direction between the fixed part and the movable part. An elastic seal portion sandwiched between,
The movable portion is pressed toward the fixed portion along the mold opening / closing direction by the molding material supplied onto the insert material, so that the elastic seal portion is fixed to the fixed portion and the movable portion. The mold is characterized in that it is elastically deformed between and is brought into contact with the inner peripheral surface of the through hole. The mold according to claim 1, wherein
A mold is provided between the fixed part and the movable part, wherein a regulating part is provided that regulates the amount of movement of the movable part toward the side opposite to the fixed part along the mold opening / closing direction. . The mold according to claim 1 or 2,
On the second cavity surface that defines the cavity in the second mold part, a filling channel that fills the molding material in the cavity opens,
The movable part is provided with an edge cutting part fitted into the filling flow path. A mold according to claim 3, wherein
The edge cutting portion is an end portion on the side opposite to the fixed portion along the mold opening / closing direction in the movable portion, and is fitted into a filling opening that opens to the second cavity surface in the filling flow path. Mold. The mold according to claim 4, wherein
The mold is characterized in that the inner peripheral surface of the filling opening and the outer peripheral surface of the edge cut portion are each gradually enlarged in diameter from the anti-fixed portion side toward the fixed portion side along the mold opening / closing direction. A mold according to any one of claims 1 to 5,
The mold, wherein the fixing part is detachably fixed to the first mold part. A method for producing a unit laminate, wherein a unit laminate is formed using the mold according to claim 1,
An arrangement step of disposing the insert material on the first cavity surface and inserting the positioning device into the through hole;
Supplying the molding material onto the insert material arranged on the first cavity surface, and
In the supplying step, the movable part is pressed against the fixed part along the mold opening / closing direction by the molding material. A method of manufacturing a seismic isolation device that forms a seismic isolation device comprising a laminate formed by laminating unit laminates,
The said unit laminated body is formed with the manufacturing method of the unit laminated body of Claim 7, The manufacturing method of the seismic isolation apparatus characterized by the above-mentioned. In the cavity formed between the first mold part and the second mold part which are closed so as to be openable and closable, on the insert material disposed on the first cavity surface defining the cavity in the first mold part. In a mold for forming a unit laminate body by supplying a molding material and laminating a molding material layer, the positioning device is disposed on the first cavity surface and is inserted into a through hole formed in the insert material Because
A fixing part fixed to the first mold part;
A movable part provided in the fixed part so as to be movable in the mold opening and closing direction;
An elastic seal part sandwiched between the fixed part and the movable part in the mold opening and closing direction,
The movable portion is pressed toward the fixed portion along the mold opening / closing direction by the molding material supplied onto the insert material, so that the elastic seal portion is fixed to the fixed portion and the movable portion. A positioning device, wherein the positioning device is elastically deformed to abut against the inner peripheral surface of the through hole.

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