JP5877268B1 - Molding auxiliary tool for molding and mold device for molding - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding auxiliary tool for molding, a mold apparatus for molding, and a molding method of the molded product that can suppress the shape of the molded product from being restricted. The present invention relates to a molding space that is attached to either a male mold or a female mold that has heat resistance and elasticity and that contacts and separates in one direction, and is defined by the male mold and the female mold. A body portion disposed within the body portion, the body portion having a molding surface exposed in the molding space, the molding surface defining the molding space of either the male mold or the female mold. Of the surface to be covered, a region aligned with the molded product is covered at least in a direction orthogonal or intersecting with the one direction. [Selection] Figure 1

Description

  The present invention relates to a molding auxiliary tool for molding a melted material into a molded product, a mold apparatus for molding, and a molding method of the molded product.

  2. Description of the Related Art Conventionally, in a molding method, a mold apparatus including a male mold and a female mold that are in contact with and away from each other and that defines a molding space for molding a molded product is used.

  As shown in FIG. 15, the male mold 60 has a core 600 that extends toward the female mold 61. The outer periphery of the core 600 gradually decreases from the proximal end to the distal end. That is, the core 600 is tapered.

  The female die 61 has a cavity 610 for forming a recess capable of accommodating the core 600. As for the recessed part comprised by the cavity 610, the inner periphery becomes large as it approaches the male type | mold 60 (for example, refer patent document 1).

  In the molding method using the mold apparatus 6, the male mold 60 and the female mold 61 are brought close to each other to define a molding space between the core 600 and the cavity 610, and the melted material is put into the molding space. After filling and solidifying the material into a molded product M, the male mold 60 and the female mold 61 are separated to open the molding space, and the molded product M is removed from the male mold 60 and the female mold 61 ( So-called mold release is performed).

  Further, in the mold apparatus 6, the core 600 is tapered and the inner periphery of the concave portion becomes larger as it approaches the male mold 60. Therefore, when performing mold release, the molded product M, the core 600, and the cavity By suppressing rubbing with 610, the core 600 and the cavity 610 can be reliably removed from the molded product M.

  Further, in the molded product M to be molded, when the male mold 60 and the female mold 61 are simply separated at the time of mold release, the male mold 60 and a portion that is caught by the female mold 61 (so-called undercut). ).

  In the mold apparatus 6 that molds the molded product M having an undercut, as shown in FIG. 16, the male mold 60 includes a plurality of split cores 601 including a molding surface corresponding to the undercut of the molded product M, and the split cores. And a core body 602 surrounded by 601.

  The split core 601 and the core main body 602 are relatively slidable in the direction in which the male mold 60 and the female mold 61 are in contact with and away from each other (see, for example, Patent Document 2).

  Therefore, in such a mold apparatus 6, as shown in FIG. 17, after the core body 602 is slid with respect to the split core 601 in the direction away from the female mold 61, the mold cores 601 are moved closer to each other, thereby forming the molding surface. The core 600 is removed from the molded product M apart from the molded product M.

JP 2004-174714 A JP 2013-237212 A

  As described above, in the mold apparatus 6 shown in FIG. 15, in order to remove the core 600 and the cavity 610 from the molded product M, a gradient is provided on the outer surface of the core 600 and the inner surface of the cavity 610 (surface defining the recess). Therefore, the shape of the outer surface of the core 600 and the inner surface of the cavity 610 used for molding the molded product M is limited.

  Further, in the mold apparatus 6 shown in FIGS. 16 and 17, in order to remove the core 600 and the cavity 610 from the molded product M, it is necessary to use the core 600 and the cavity 610 as a split mold. The shape of the core 600 and the cavity 610 used for molding is limited to a shape that can be split.

  Thus, in the conventional mold apparatus 6, since it is necessary to be able to remove the molded product M from the male mold 60 and the female mold 61, the male mold 60 and the female mold 61 used for molding the molded product M are used. The degree of freedom in designing the shape was limited.

The present invention has been made in view of the above situation, and an object thereof is to provide molding aid for molding the shape of the molded article can be prevented from being limited, and the mold equipment for molding.

Molding aid for molding of the present invention, there in male and attached only and a removable molding aid the male of female defining a molding cavity for molding a molded article by the mold clamping A body portion having elasticity and heat resistance, the body portion including a side outer surface serving as an outer surface with respect to a releasing direction which is a direction in which a molded product is removed, and the side outer surface is attached to the male mold. a molding surface of the side surface with respect to the release direction of the faces defining the pre-Symbol molding space was state, configured to extend straight in or the releasing direction including an undercut bulging outward And has a concavo-convex pattern for transferring to a molded product .

  According to such a configuration, since the molding surface of the main body portion is at least a part of the side surface in the mold release direction among the surfaces defining the molding space, the molded product molded in the molding space is formed on the molding surface. Closely.

  In the said molding aid, since a main-body part has elasticity, a molding surface can be elastically deformed. Therefore, since the molding aid can be elastically deformed and separated from the molded product, the main body (molded surface) is removed from the molded product without being caught or rubbed by the molded product. Therefore, the said molding auxiliary tool can remove a main-body part from a molded product irrespective of the shape of a molded product.

In the molding auxiliary tool for molding according to the present invention, the entire outer surface of the side portion may be the molding surface in the circumferential direction .

  In the molding auxiliary tool for molding according to the present invention, the main body portion is formed with a recess opening on the outer surface, and the recess is the male core and extends toward the female mold. May be insertable.

  According to this configuration, since the concave portion formed in the main body portion can insert the core, when the core is inserted into the concave portion, the main body portion is hardly deformed. And if a core is pulled out from a recessed part, it will be in the state which can deform | transform a main-body part easily. Therefore, in the said shaping | molding auxiliary tool, a deformation | transformation of a main-body part can be suppressed at the time of shaping | molding of a molded product, and a main-body part can be made easy to deform | transform at the time of removal of a molded product.

The mold apparatus for molding of the present invention is a mold apparatus for molding comprising a male mold and a female mold for defining a molding space for molding a molded product by clamping, and is attached to the male mold. A molding auxiliary tool that is removable and removable , the molding auxiliary tool is provided with a main body portion having elasticity and heat resistance, and the main body portion is an outer surface with respect to a releasing direction that is a direction in which a molded product is removed. comprising a outer surface, said side portion outer surface is the molding surface of the side surface with respect to the release direction of the faces defining the pre-Symbol molding cavity while being attached to the male, under bulging outward It is configured to include a cut or to extend straight in the release direction, and has a concavo-convex pattern for transferring to a molded product .

  According to such a configuration, since the molding surface of the main body portion is at least a part of the side surface in the mold release direction among the surfaces defining the molding space, the molded product molded in the molding space is formed on the molding surface. Closely.

  In the mold apparatus, since the main body portion of the molding aid has elasticity, the molding surface of the main body portion can be elastically deformed. Therefore, in the mold apparatus, since the molding surface can be elastically deformed and separated from the molded product, the main body (molded surface) is removed from the molded product without being caught or rubbed by the molded product. Therefore, the mold apparatus can remove the main body from the molded product regardless of the shape of the molded product.

In the molding die apparatus according to the present invention, the entire outer surface of the side portion may be the molding surface in the circumferential direction .

  In the molding die apparatus according to the present invention, the main body portion is formed with a recess opening on an outer surface, and the recess is the male core, and the core extending toward the female die is inserted therein. It may be possible.

  According to this configuration, since the concave portion formed in the main body portion can insert the core, when the core is inserted into the concave portion, the main body portion is hardly deformed. And if a core is pulled out from a recessed part, it will be in the state which can deform | transform a main-body part easily. Therefore, in the mold apparatus, it is possible to suppress the deformation of the main body portion when the molded product is molded and to easily deform the main body portion when the molded product is removed.

As described above, molding aids for molding of the present invention, and according to the mold equipment for molding, an excellent effect that it is possible to suppress the shape of the molded article is limited.

FIG. 1 is a longitudinal sectional view of a mold apparatus according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view of the mold apparatus according to the embodiment, and is a longitudinal sectional view different from FIG. FIG. 3 is a front view of the core in the mold apparatus according to the embodiment. FIG. 4 is a plan view of the male mold platen in the mold apparatus according to the embodiment. FIG. 5 is a plan view of a stripper in the mold apparatus according to the embodiment. 6 is an enlarged view of the mold apparatus according to the embodiment, and is an enlarged view of a region in the vicinity of the core shown in FIG. 7 is an enlarged view of the mold apparatus according to the embodiment, and is an enlarged view of a region in the vicinity of the guided portion shown in FIG. FIG. 8 is a cross-sectional view of the molding aid according to the embodiment. FIG. 9 is an explanatory view of the mold apparatus according to the embodiment, and is an explanatory view showing a state where the male mold and the female mold are separated from each other. FIG. 10 is an explanatory view of the mold apparatus according to the embodiment, and is an explanatory view showing a state in which the cavity is removed from the molded product. FIG. 11 is an explanatory diagram of a molding die apparatus according to the embodiment, and is an explanatory diagram in a state where a molded product and a molding auxiliary tool are removed from the core body. FIG. 12 is an explanatory diagram of a mold apparatus according to another embodiment of the present invention. FIG. 13 is an explanatory view of a mold apparatus according to another embodiment of the present invention. FIG. 14 is an explanatory view of a mold apparatus according to still another embodiment of the present invention. FIG. 15 is an explanatory diagram of a conventional mold apparatus. FIG. 16 is an explanatory view of another conventional mold apparatus, and is an explanatory view of a state in which a molded product is formed. FIG. 17 is an explanatory view of another conventional mold apparatus, and is an explanatory view showing a state where a male mold is removed from a molded product.

  Hereinafter, a molding auxiliary tool for molding according to an embodiment of the present invention (hereinafter referred to as a molding auxiliary tool) will be described with reference to the accompanying drawings.

  The molding auxiliary tool according to the present embodiment is used as a part constituting a part of a mold apparatus for performing resin molding to process a molten material (for example, a resin material) into a molded product. Therefore, in this embodiment, a mold apparatus provided with a molding aid will be described. In the present embodiment, the following description is given on the assumption that injection molding is performed. However, the molding auxiliary tool and the mold apparatus may be used for compression molding, transfer molding, and the like.

  As shown in FIG. 1, the mold apparatus 1 includes a male mold 2 and a female mold 3 that define a molding space D in which a molded product is molded by clamping. Further, the mold apparatus 1 includes a release mechanism 4 for removing a molded product from the male mold 2 and the female mold 3. The mold apparatus 1 includes a molding auxiliary tool 5 attached to at least one of the male mold 2 and the female mold 3.

  In the present embodiment, the following description will be given with the contact / separation direction, which is the direction in which the male mold 2 and the female mold 3 are in contact with each other, being the Y-axis direction. In the present embodiment, the direction perpendicular to the Y-axis direction (the direction in which the partition walls 300 of the cavities 30 described later of the female mold 3 are separated from each other) is defined as the X-axis direction, and is orthogonal to the Y-axis direction and the X-axis direction. The direction to be performed may be described as the Z-axis direction.

  The male mold 2 has a core 20 extending in the Y-axis direction and a male mold board unit 21 to which the core 20 is attached.

  As shown in FIG. 3, the core 20 includes a core body 200 that extends toward the female mold 3 in the Y-axis direction. The core 20 has a base 201 that is integral with the core body 200.

  The core body 200 has a distal end in the Y-axis direction and a proximal end opposite to the distal end. The core body 200 is tapered, and the tip is rounded.

  The outer surface of the core body 200 includes a tip surface 200a that is one end surface in the Y-axis direction, an outer surface 200b that is a side surface with respect to the Y-axis direction, and a curved surface 200c that is continuous with the tip surface 200a and the outer surface 200b. It is.

  The front end surface 200a abuts against a contact surface 504b of a recess 504 described later in the molding assisting tool 5. The outer side surface 200b includes a tapered surface whose outer periphery becomes smaller from the proximal end side toward the distal end side.

  The curved surface 200c is curved so that the outer circumference becomes smaller from the outer surface 200b side toward the tip surface 200a side. That is, the curved surface 200c is a rounded part.

  The base part 201 is integral with the base end of the core body 200. The outer periphery of the base part 201 is larger than the outer periphery of the base end of the core body 200.

  As shown in FIG. 1, the male side platen unit 21 is provided between a male side platen 210 to which the core body 200 is fixed (the base 201 is fixed) and the male side platen 210 in the Y-axis direction. There is a male side mounting plate 211 arranged at intervals and for mounting the male side platen 210 to an external device (clamping machine in this embodiment). The male side platen unit 21 has a spacer 212 attached to the male side platen 210 and the male side attachment platen 211.

  The male side mold plate 210 has a plate shape. The male mold platen 210 has a first surface arranged on the female mold 3 side and a second surface opposite to the first surface. As shown in FIG. 4, in the male side platen 210, both ends in the X-axis direction are longer than both ends in the Z-axis direction. In other words, in the male mold platen 210 according to the present embodiment, both ends in the X-axis direction are short sides, and both ends in the Z-axis direction are long sides.

  The male mold plate 210 is formed with a plurality of through holes 210a through which open / close pins P1 extending in the Y-axis direction are inserted. The male mold platen 210 according to the present embodiment is formed with through holes 210a at the four corners.

  Further, the male mold platen 210 is formed with a plurality of insertion holes 210b through which a later-described protrusion pin 401 of the release mechanism 4 is inserted. In the male mold platen 210 according to the present embodiment, insertion holes 210b are formed in regions near the four corners.

  Further, the male mold plate 210 is formed with a relief portion 210c constituted by a recess extending from each of the short sides toward the center portion.

  And the male side mold board 210 has the arrangement | positioning part 210d by which the base part 201 of the core 20 formed in a center part is arrange | positioned. The arrangement part 210d is configured by a recess formed on the first surface of the male mold platen 210. In the male mold 2 according to the present embodiment, the base part 201 of the core 20 is fixed to the male mold platen 210 in a state where the base part 201 is arranged in the arrangement part 210d.

  As shown in FIG. 2, the male side mounting board 211 is plate-shaped. The male side mounting platen 211 has a first surface arranged toward the male side platen 210 side and a second surface opposite to the first surface.

  The male mounting plate 211 is formed with a protruding hole 211a penetrating from the first surface to the second surface.

  In the male side platen unit 21 according to the present embodiment, the two spacers 212 are arranged at an interval in the X-axis direction. Therefore, in the male side platen unit 21, a space is secured between the male side platen 210 and the male side mounting plate 211 by the spacer 212.

  As shown in FIG. 1, the female mold 3 includes a cavity 30 that defines an accommodation recess that can accommodate the core 20, and a female mold board unit 31 with which a male mold board unit 21 is attached in the Y-axis direction. Have. The female mold 3 according to this embodiment has a filling structure 32 for filling the molding space D with the molten material.

  The cavity 30 according to the present embodiment is a split mold. This will be described more specifically. As shown in FIG. 6, the cavity 30 includes a plurality (two in the present embodiment) of partition walls 300.

  The partition wall 300 has an abutment surface 300a that abuts on the female side platen unit 31 in the Y-axis direction and an opposing surface 300b that opposes the female side platen unit 31 in the X-axis direction.

  In addition, the partition body 300 has a recess forming surface 300c for defining an accommodation recess. The partition bodies 300 are configured to be able to contact and separate from each other in the X-axis direction. And the partition body 300 is comprised so that each recessed part formation surface 300c may continue, if it mutually approaches | abuts and abuts in the X-axis direction.

  The female side platen unit 31 includes a female side platen 310 that can accommodate the cavity 30, and a female side platen 311 for attaching the female side platen 310 to an external device (in this embodiment, an injection machine). Have

  The female-side mold platen 310 has a first surface arranged toward the male mold 2 side and a second surface opposite to the first surface. The female mold plate 310 is formed with a concave accommodating portion 310a that opens to the male mold 2 side. The female mold platen 310 is formed with a mounting hole 310b that communicates from the second surface to the housing portion 310a. The mounting hole 310b in the present embodiment is a stepped hole. Therefore, the mounting hole 310 b has a larger inner diameter on the first surface side of the female mold platen 310 than an inner diameter on the second surface side of the female mold platen 310. In the present embodiment, a portion of the mounting hole 310b on the first surface side of the female mold platen 310 is a large diameter hole, and a portion of the mounting hole 310b on the second surface side of the female mold platen 310 is defined. Use a small-diameter hole.

  Further, the female mold plate 310 according to the present embodiment is formed with a receiving hole 310c which is a non-through hole (a hole opened only on the first surface side) at a position corresponding to the through hole 210a in the Y-axis direction. (See FIG. 2).

  The female side mounting platen 311 has a first surface superimposed on the female side platen 310 (second surface of the female side platen 310) and a second surface opposite to the first surface. The female side mounting plate 311 is fixed to the female side platen 310 in a state where the first surface is overlapped with the second surface of the female side platen 310.

  The female side mounting plate 311 has a communication hole 311a at a position corresponding to the mounting hole 310b. Therefore, the communication hole 311a of the female side mounting board 311 communicates with the mounting hole 310b. The communication hole 311a penetrates from the first surface of the female side mounting plate 311 to the second surface of the female side mounting plate 311.

  Furthermore, in the female side mounting plate 311 according to the present embodiment, an annular locating ring R is attached to the second surface. The locate ring R is arranged so that the inside communicates with the communication hole 311a. Therefore, in the female side mounting plate 311 according to the present embodiment, the injection machine is inserted into the inside of the locating ring R and the communication hole 311a.

  The molding space D includes a sprue bush 320 that is inserted into the attachment hole 310b of the female mold platen 310. The sprue bushing 320 is formed with a flow passage 320a for circulating the molten material into the molding space D from the outside.

  Further, when the sprue bushing 320 is inserted into the mounting hole 310b of the female side mold platen 310, one end in the direction of insertion into the mounting hole 310b is interposed between the partition walls 300. This will be described more specifically. The sprue bushing 320 includes an insertion portion 320b that is inserted into the female mold platen 310, and an advancing portion 320c that extends from the insertion portion 320b and is disposed in the housing recess.

  Since the mounting hole 310b includes a large-diameter hole and a small-diameter hole as described above, the insertion portion 320b has an outer diameter on one end side in the Y-axis direction (advancing portion 320c side) that is the other end side in the Y-axis direction. It is smaller than the outer diameter.

  When the partition body 300 is brought into contact with each other, the advancing portion 320c comes into close contact with the partition wall 300 over the entire circumference of the advancing portion 320c. Further, the advancing portion 320 c is configured such that when the partition walls 300 are attached to each other, the end surface on the distal end side is continuous with the recess forming surface 300 c of the partition wall 300. That is, in the female mold 3 according to the present embodiment, the end surface on the distal end side of the advancing portion 320 c and the recess forming surface 300 c of the partition wall 300 cooperate to define a recess that can accommodate the core 20.

  In the sprue bush 320 according to the present embodiment, the flow passage 320a is configured to penetrate the insertion portion 320b and the advance portion 320c in the Y-axis direction. This will be described more specifically. The sprue bushing 320 has a concave contact portion 320d formed on the end surface of the insertion portion 320b, and a sprue 320e penetrating from the corresponding portion 320d to the end surface on the distal end side of the advancing portion 320c.

  As shown in FIG. 1, the release mechanism 4 includes a protruding unit 40 for removing the core 20 from the molded product, and a guide unit 41 for removing the cavity 30 from the molded product.

  As shown in FIG. 2, the protruding unit 40 is a stripper 400 disposed on the male mold platen 210 (between the male mold platen 210 and the female mold platen 310). The stripper 400 is movable relative to the side mold plate 210. Further, the protruding unit 40 has a protruding pin 401 that pushes up the stripper 400 toward the female mold platen 310.

  Further, the protruding unit 40 is a push-up plate disposed on the male mounting plate 211, and is disposed on the push-up plate 402 that pushes up the push-up pin 401, and the push-up pin 401. The fixing plate 403 is inserted, and a biasing member 404 that biases the fixing plate 403 toward the male side mounting plate 211 (in a direction away from the female side platen 310).

  The stripper 400 is plate-shaped. The stripper 400 has a first surface facing the female mold 3 and a second surface opposite to the first surface. Therefore, the stripper 400 is disposed so that the second surface faces the first surface of the male mold platen 210.

  As shown in FIG. 5, in the stripper 400, both ends in the Z-axis direction are longer than both ends in the X-axis direction. That is, in the stripper 400 according to the present embodiment, both ends in the X-axis direction are short sides, and both ends in the Z-axis direction are long sides.

  In the stripper 400, an insertion communication hole 400a is formed at a position corresponding to the through hole 210a in the Y-axis direction. The insertion communication holes 400 a are formed at the four corners of the stripper 400. Therefore, in the mold apparatus 1 according to the present embodiment, the opening and closing of the through hole 210a of the male mold platen 210, the insertion communication hole 400a of the stripper 400, and the receiving hole 310c of the female mold platen 310 is performed. The pin P1 is inserted.

  Further, the stripper 400 is formed with a relief portion 400b constituted by a recess extending from each of the short sides toward the central portion. The relief portion 400b of the stripper 400 is formed at a position corresponding to the relief portion 210c of the male mold platen 210 in the Y-axis direction.

  An insertion hole 400 c through which the core body 200 is inserted is formed at the center of the male mold platen 210. Therefore, in this embodiment, by moving the stripper 400 in the direction away from the male mold platen 210, the core body 200 can be removed from the insertion hole 400c.

  Further, the stripper 400 is formed with a guide groove 400d for guiding the partition body 300 in the X-axis direction (see FIG. 1). In the stripper 400, guide grooves 400d are formed on one end side in the X-axis direction and the other end side in the X-axis direction. In other words, the stripper 400 is formed with a pair of guide grooves 400d.

  The protrusion pin 401 is inserted through each of the insertion holes 210b of the male mold platen 210. That is, the protruding unit 40 according to this embodiment has four protruding pins 401.

  Accordingly, the fixing plate 403 is formed with four fixing holes 403a through which the protruding pins 401 are inserted.

  As shown in FIG. 7, the guide unit 41 is a guide pin 410 that extends from the female mold platen 310 toward the male mold platen 210 and has a base end fixed to the female mold platen 310, and includes a distal end portion. Has a guide pin 410 that is inclined so as to be farther from the core 20 than the base end portion, and a guided portion 411 through which the guide pin 410 is inserted, and a guided portion 411 that is fixed to the partition body 300. . Furthermore, the guide unit 41 according to the present embodiment includes a dropout prevention member 412 that prevents the guided portion 411 from falling off the stripper 400.

  The guide pin 410 is disposed so as to pass through the escape portion 210 c of the male mold platen 210 and the escape portion 400 b of the stripper 400. Therefore, in the mold apparatus 1 according to the present embodiment, the guide pin 410 is prevented from interfering with the male mold plate 210 and the stripper 400 as the male mold 2 and the female mold 3 are brought into contact with and separated from each other. .

  The guided portion 411 and the dropout prevention member 412 are arranged so as to be aligned in the X-axis direction. Therefore, in the guide unit 41, when the guided portions 411 slide so as to be separated from each other in the X-axis direction, the guided portions 411 contact the drop-off prevention member 412.

  The molding assisting tool 5 is attached to at least one of the male mold 2 and the female mold 3 (in this embodiment, the male mold 2). The molding aid 5 is disposed in the molding space D in a state where the male mold 2 and the female mold 3 are clamped.

  Therefore, the molding auxiliary tool 5 according to this embodiment constitutes a part of the surface whose outer surface defines the molding space D. That is, the outer surface of the molding aid 5 is used for molding a molded product.

  This will be described more specifically. As illustrated in FIG. 8, the molding auxiliary tool 5 includes a main body 50 disposed in the molding space D. Further, the molding aid 5 has an attachment part 51 for attaching the main body part 50 to the male mold 2.

  The main body 50 includes a side 500 that surrounds the periphery of the core main body 200, a front end 501 that is aligned with the front end surface 200a of the core main body 200 in the Y-axis direction, and a corner 502 that is continuous with the side 500 and the front end 501. Have

  The outer surface of the side part 500 bulges outward. More specifically, the outer surface of the side portion 500 swells outward over the entire circumference.

  The outer surface of the tip 501 is disposed at a position corresponding to the flow path 320a of the sprue bushing 320 in the Y-axis direction. The tip portion 501 thickness is set to be smaller than the maximum thickness of the side portion 500.

  The outer surface of the corner portion 502 is configured such that the outer periphery becomes smaller from the side portion 500 side toward the tip portion 501 side. That is, the outer surface of the corner 502 is rounded.

The main body 50 is attached to at least one of the male mold 2 and the female mold 3 (in this embodiment, the male mold 2), and removes a molded product from the surface that defines the molding space D. A molding surface 503 that is at least a part of a side surface with respect to the mold release direction.
The main body 50 is formed with a recess 504 that opens on the outer surface. The release direction in the present embodiment corresponds to the direction in which the male mold 2 and the female mold 3 are separated.

  In the main body 50 according to the present embodiment, the molding surface 503 is configured by the outer surface of the main body 50. The molding surface 503 (the outer surface of the main body 50) includes a side outer surface 503a (an outer surface of the side portion 500) serving as an outer surface with respect to the Y-axis direction, and a tip surface 503b (the tip portion) that is an end surface of the tip portion in the Y-axis direction 501), a side outer surface 503a, and a corner outer surface 503c (an outer surface of the corner 502) continuous to the tip end surface 503b.

  In the molding aid 5 according to the present embodiment, the concave portion 504 is configured so that the core 20 can be inserted as described above. That is, the attachment portion 51 is the recess 504. In the present embodiment, the following description will be given with the mounting portion 51 as the recess 504.

  The concave portion 504 opens at a position away from the molding surface 503. The surface defining the recess 504 corresponds to the inner peripheral surface 504a corresponding to the outer surface 200b of the core body 200, the abutting surface 504b corresponding to the tip surface 200a of the core body 200, and the curved surface 200c of the core body 200. And a curved surface 504c.

  The recess 504 is detachable with respect to the core 20 detachable. This will be described more specifically. In the concave portion 504, the inner periphery of the inner peripheral surface 504a expands toward the opening side. Therefore, in the mold apparatus 1 according to the present embodiment, when the molding auxiliary tool 5 is moved in the direction away from the core main body 200 in the Y-axis direction, the molding auxiliary tool 5 is extracted from the core main body 200.

  The curved surface 504c is configured such that the inner periphery becomes smaller from the inner peripheral surface 504a side toward the abutting surface 504b side.

  The description of the mold apparatus 1 according to the present embodiment is as described above. Next, a method for molding a molded product using the mold apparatus 1 will be described.

  The molding method according to the present embodiment is a molding method using a mold apparatus 1 including a male mold 2 and a female mold 3 that form a molding space D by clamping. In the molding method according to the present embodiment, the molding space D is formed by the male mold 2, the female mold 3, and the molding auxiliary tool 5 including the molding surface 503 having elasticity and heat resistance. A process and a mold release process for releasing the molded product molded in the molding space D.

  Further, the molding method includes a molding step of filling the molten material in the molding space D and solidifying the material to form a molded product after performing the molding space forming step.

  In the molding space forming step, the male surface is arranged such that the molding surface 503 is at least part of the side surface in the mold release direction, which is the direction in which the molded product is removed from the molding auxiliary tool 5 among the surfaces defining the molding space D. The mold 2, the female mold 3, and the molding aid 5 are disposed. In the present embodiment, the core body 200 is inserted into the recess 504 of the molding auxiliary member.

  Accordingly, the front end surface 200a of the core body 200 and the abutting surface 504b of the recess 504 come into contact with each other, the curved surface 200c of the core body 200 and the curved surface 504c of the recess 504 come into contact, and further, the outer side surface 200b of the core body 200. And the inner peripheral surface 504a of the recess 504 come into contact with each other.

  Then, the male side mounting plate 211 is brought close to the female side mounting plate 311 by the mold clamping machine. As a result, the core 20 and the cavity 30 approach the female mold platen 310. Accordingly, the partition wall 300 of the cavity 30 is brought closer to each other as it approaches the female side platen 310.

  This will be described more specifically. When the male side platen 210 approaches the female side platen 310, the guided portion 411 is pushed up toward the female side platen 310 by the male side platen 210 (closes to the female side platen 310). At this time, the guided portions 411 are guided by the guide pins 410 in directions toward each other. Along with this, the partition walls 300 slide in a direction approaching each other.

  When the partition walls 300 are brought into contact with each other, the partition walls 300 are in close contact with the side surfaces of the advancing portions 320c. Thereby, the end surface on the front end side of the advancing portion 320c and the recess forming surface 300c of the partition wall 300 are continuous, and the housing recess is defined. At this time, the core main body 200 to which the molding assisting tool 5 is attached is arranged in the housing recess.

  In the molding process, the melted material is supplied into the molding space by the filling structure 32. In the present embodiment, the material is filled into the molding space D through the flow passage 320a of the sprue bushing 320. Then, the material is solidified to obtain a molded product.

  In the mold release step, when the male side mounting plate 211 is moved away from the female side mounting plate 311 by the mold clamping machine, the cavity 30 is taken out from the accommodating portion 310a of the female side platen 310. Further, as shown in FIG. 9, when the male side mounting plate 211 is moved in the direction away from the female side mounting plate 311, the guided portions 411 are guided in the direction away from each other by the guide pins 410. 300 moves away from each other. Thus, as shown in FIG. 10, the molded product M is removed from the female mold 3 (cavity 30).

  When the push-up plate 402 is moved toward the male mold plate 210, the push-up pin 401 is pushed up by the push-up plate 402. Along with this, when the stripper 400 is pushed toward the female mold plate 310 by the thrust pin 401, as shown in FIG. 11, the molded product M is pushed away from the core body 200 by the stripper 400. The molding aid 5 is removed from the core body 200 together with the molded product M. Then, the molding auxiliary tool 5 is elastically deformed to separate the molding surface 503 from the molded product. That is, the molding aid 5 is removed from the molded product M by elastically deforming the molding surface 503 of the main body 50 and separating it from the molded product M.

  As described above, in the mold apparatus 1 including the molding auxiliary tool 5, the molding surface 503 of the main body 50 is at least a part of the side surface in the mold release direction among the surfaces defining the molding space D. A molded product M molded in the molding space D is in close contact with the surface 503.

  However, since the main body 50 has elasticity, the molding surface 503 can be elastically deformed. Therefore, in the mold apparatus 1 provided with the molding aid 5, the molding surface 503 can be elastically deformed and separated from the molded product M, so that the main body 50 (molded surface 503) is caught or rubbed by the molded product M. It removes from the molded product M without doing. Therefore, the mold apparatus 1 including the molding auxiliary tool 5 can remove the main body 50 from the molded product M regardless of the shape of the molded product M.

  In the present embodiment, since the main body 50 covers the side surface of the male mold 2 (substantially the entire side surface of the core 20 of the male mold 2 in this embodiment) with respect to the mold release direction, the molding surface 503 includes the inside of the molding space D. The part to be molded on the male mold 2 side in the molded product M molded in the above is intimately contacted, but since the molding surface 503 can be elastically deformed and separated from the molded product M, the main body part 50 (molded surface 503) is molded product M. The molded product M is removed from the molded product M without being caught or rubbed on the part to be molded on the male mold 2 side. Therefore, the mold apparatus 1 including the molding assisting tool 5 can remove the main body 50 from the molded product M regardless of the shape of the part molded on the male mold 2 side of the molded product M.

  Furthermore, in the mold apparatus 1 including the molding aid 5 according to the present embodiment, the core 20 can be inserted into the concave portion 504 formed in the main body portion 50, and thus the core 20 (core main body 200) is inserted into the concave portion 504. If it does, since the main-body part 50 is supported by this core 20 from an inner side, it can suppress that the main-body part 50 deform | transforms with the external force which acts from the outside. When the core 20 is pulled out from the recess 504 at the time of mold release, a space is formed in the main body 50, so that the main body 50 can be deformed to separate the molding surface 503 from the molded product M. Become.

  The concave portion 504 of the main body 50 is continuous with the inner peripheral surface 504a corresponding to the outer surface 200b of the core 20, the abutting surface 504b with which the tip of the core 20 abuts, the inner peripheral surface 504a, and the abutting surface 504b. In addition, a curved surface 504c having an inner diameter that decreases from the inner peripheral surface 504a side toward the abutting surface 504b side, and the curved surface 200c of the core body 200 abuts on the curved surface 504c.

  Therefore, when the main body 50 (the part defining the recess 504) is pressed against the core 20 by an external force acting on the molding surface 503, the reaction force acting on the main body 50 from the core 20 is concentrated in one place. It can be suppressed. Therefore, in the metal mold apparatus 1 provided with the shaping | molding auxiliary tool 5, it can suppress that the main-body part 50 is damaged.

  In the molding method of the molded product M, the molding surface 503 is at least a part of the side surface with respect to the releasing direction, which is the direction in which the molded product M is removed from the molding auxiliary tool 5 among the surfaces that define the molding space D. Since the male mold 2, the female mold 3, and the molding assisting tool 5 are disposed in the middle, the molding surface 503 of the main body 50 is at least a part of the side surface in the mold release direction among the surfaces that define the molding space D. Therefore, the molded product M molded in the molding space D is in close contact with the molding surface 503.

  However, in the mold release process, the molding auxiliary tool 5 is elastically deformed to separate the molding surface 503 from the molded product M, so that the molding auxiliary tool 5 (molding surface 503) is not caught or rubbed by the molded product M. It is removed from the molded product M. Therefore, in the molding method, the molding aid 5 can be removed from the molded product M regardless of the shape of the molded product M.

  As described above, according to the molding auxiliary tool 5, the mold apparatus 1, and the molding method according to the present embodiment, it is possible to suppress the shape of the molded product M from being limited.

  In addition, the shaping | molding auxiliary tool 5, the mold apparatus 1, and the shaping | molding method which concern on this invention are not limited to the said embodiment, A various change can be added in the range which does not deviate from the summary of this invention. Of course.

  In the said embodiment, although the area | region which forms the undercut of the molded article M is contained in the molding surface 503 of the main-body part 50, it is not limited to this structure. For example, as shown in FIG. 12, the outer surface of the main body 50 may extend straight in the Y-axis direction.

  More specifically, the side outer surface 503a of the main body 50 may extend straight in the Y-axis direction. Even in this case, the molding surface 503 of the main body 50 is not provided with a draft, but the molding aid 5 is molded by elastically deforming the molding surface 503 of the main body 50 and separating it from the molded product M. It can be removed from the product M.

  In the said embodiment, although the shaping | molding auxiliary tool 5 presupposed that it is attached to the male type | mold 2 (core 20), it is not limited to this structure. For example, the molding aid 5 may be attached to the female mold 3 (cavity 30).

  If demonstrating it more concretely, the shaping | molding auxiliary tool 5 may be comprised so that the main-body part 50 can be attached to the female type | mold 3, and the side surface of the female type | mold 3 with respect to a mold release direction is covered. In this case, the main body 50 is attached to a receiving recess defined by the cavity 30 of the female mold 3.

  In this case, the molding surface 503 of the main body 50 is constituted by the inner peripheral surface 504 a of the main body 50. Further, the molding surface 503 (inner peripheral surface 504a) of the main body 50 may include a region for forming an undercut of the molded product M as shown in FIG. That is, the inner peripheral surface 504a of the main body 50 may be curved outward. Furthermore, the molding surface 503 (inner peripheral surface 504a) of the main body 50 may be formed such that the inner peripheral surface 504a of the main body 50 extends straight in the Y-axis direction, as shown in FIG.

  In the mold apparatus 1 according to the above-described embodiment, the molding auxiliary tool 5 is attached only to the male mold 2 (core 20), but is not limited to this configuration. For example, in the mold apparatus 1, individual molding aids 5 may be attached to the male mold 2 and the female mold 3.

  In the said embodiment, although the male side platen unit 21 was attached to the mold clamping machine, it is not limited to this structure. That is, in the above embodiment, the male side platen unit 21 is moved relative to the female side platen unit 31 in the Y-axis direction, but the female side platen unit 31 is moved relative to the male side platen unit 21. The male side platen unit 21 and the female side platen unit 31 may be moved. That is, the male side platen unit 21 and the female side platen unit 31 may be configured to move relative to each other in the Y-axis direction.

  In the embodiment described above, the female side platen unit 31 has a structure for filling the molten material in the molding space D. However, the structure is not limited to this. For example, the male mold platen unit 21 may have a structure for filling the molding space D with a molten material. That is, in the said embodiment, although the female side mounting board 311 was attached to the injection apparatus, it is not limited to this structure. For example, the male side mounting plate 211 may be attached to the injection device.

  In the above embodiment, the cavity 30 is divided into the two partition walls 300, but is not limited to this configuration. For example, the cavity 30 may be divided into three or more partition walls 300. In addition, when the molding auxiliary tool 5 is attached to the female mold 3, the cavity 30 may not be a split mold.

  In the said embodiment, although the attaching part 51 was comprised by the dent formed in the main-body part 50, it is not limited to this structure. For example, the attachment portion 51 may be configured by an extension portion extending from the main body portion 50 and the extension portion may be inserted into the core main body 200. In this case, the main body 50 can be solid.

  In the said embodiment, although the shaping | molding auxiliary tool 5 was comprised so that the whole core 20 arrange | positioned in molding space might be covered, it is not limited to this structure. For example, the molding auxiliary tool 5 may be formed in a cylindrical shape and configured to insert the core 20 therein.

  That is, the molding assisting tool 5 covers a region aligned with the molded product M at least in a direction perpendicular to or intersecting with the one direction among the surfaces defining the molding space D of either the male mold 2 or the female mold 3. It suffices to be configured.

  According to this configuration, when the mold release is performed, the outer surface of the main body 50 can be separated from the molded product M by elastically deforming the main body 50, so that the molding surface 503 of the main body 50 can be separated from the molding surface 503. Even if the surface for molding the undercut of the molded product M is included, the molding aid 5 can be removed from the undercut of the molded product M.

  Although not particularly mentioned in the above embodiment, the main body 50 can be removed from the molded product M by elastically deforming the molding surface 503 and separating it from the molded product M. On the outer surface 50 (molding surface 503), a pattern composed of irregularities, which can be transferred to the molded product M, can also be applied.

  In the above embodiment, the molding auxiliary tool 5, the mold apparatus 1, and the molding method have been described on the premise that the glass is molded as the molded product M. However, the molded product M that can be a molding target. Is not limited to glasses.

  DESCRIPTION OF SYMBOLS 1 ... Mold apparatus, 2 ... Male type, 3 ... Female type, 4 ... Mold release mechanism, 5 ... Molding auxiliary tool, 20 ... Core, 21 ... Male side platen unit, 30 ... Cavity, 31 ... Female side platen Unit: 32 ... Filling structure, 40 ... Projection unit, 41 ... Guide unit, 50 ... Body part, 51 ... Mounting part, 200 ... Core body, 200a ... Tip surface, 200b ... Outer surface, 200c ... Curved surface, 201 ... Base part 210 ... Male side platen, 210a ... Through hole, 210b ... Insertion hole, 210c ... Relief part, 210d ... Arrangement part, 211 ... Male side mounting board, 211a ... Throw-up hole, 212 ... Spacer, 300 ... Bulkhead , 300a ... abutting surface, 300b ... opposing surface, 300c ... concave portion forming surface, 310 ... female side platen, 310a ... accommodating portion, 310b ... mounting hole, 310c ... receiving hole, 311 ... female side mounting plate, 311a ... communication Hole, 320 ... Sprue bushing, 3 DESCRIPTION OF SYMBOLS 0 ... Bush, 320a ... Flow path, 320b ... Insertion part, 320c ... Advance part, 320d ... This part, 320e ... Sprue, 400 ... Stripper, 400a ... Communication hole for insertion, 400b ... Relief part, 400c ... Insertion hole, 400d: guide groove, 401: thrusting pin, 402 ... push-up plate, 403 ... fixing plate, 403a ... fixing hole, 404 ... biasing member, 410 ... guide pin, 411 ... guided portion, 412 ... drop-off preventing member, 500 ... Side part, 501 ... Tip part, 502 ... Corner part, 503 ... Molding surface, 503a ... Side part outer face, 503b ... Tip face, 503c ... Outer corner part, 504 ... Recess, 504a ... Inner peripheral face, 504b ... Abutting face 504c ... curved surface, D ... molding space, M ... molded product, P1 ... opening / closing pin, R ... locating ring

Claims (6)

A male and attached only and a removable molding aid the male of female defining a molding cavity for molding a molded article by the mold clamping, the body portion having elasticity and heat resistance provided, the main body is provided with a lateral outer surface which becomes an outer surface for releasing direction is the direction to remove the molded article, the side portion outer surface defines a pre Symbol molding cavity while being attached to the male is said molding surface composed of a side surface with respect to the release direction of the faces, it is configured to extend straight in or the releasing direction including an undercut bulging outward, and irregularities for transferring the molded article Molding aid for molding with a pattern . The molding auxiliary tool for molding according to claim 1, wherein an entire circumferential surface of the side outer surface is the molding surface .   3. The molding according to claim 2, wherein a concave portion that opens on an outer surface is formed in the main body portion, and the concave portion is the male core, into which a core extending toward the female die can be inserted. Molding aids. A mold apparatus for molding with a male and female to define a molding cavity for molding a molded article by clamping, with a molding aid is attached only and removable in the male The molding aid includes a main body having elasticity and heat resistance, and the main body includes a side outer surface serving as an outer surface with respect to a releasing direction, which is a direction in which a molded product is removed. wherein a said molding surface composed of a side surface with respect to the release direction of the faces defining the pre-Symbol molding cavity while being attached to the male, straight or mold release direction including an undercut bulging outward A mold apparatus for molding having a concavo-convex pattern for extending to a molded product . The mold apparatus for molding according to claim 4 , wherein an entire circumferential surface of the side portion outer surface is the molding surface . 6. The molding according to claim 5 , wherein a concave portion that opens on an outer surface is formed in the main body portion, and the concave portion is the male core, into which a core extending toward the female die can be inserted. Mold equipment.