JP5412331B2 - Molding equipment - Google Patents

Description

  The present invention relates to a molding apparatus.

  2. Description of the Related Art Conventionally, in a molding apparatus for molding an interior member of a vehicle, a base material before molding is pressed by a molding die and an unnecessary portion of the outer periphery of the base material (a portion protruding from a molding space formed between the molding dies) 2. Description of the Related Art A molding apparatus that forms a predetermined shape by cutting a wire is known. As such a base material, the thing of the following patent document 1 is known, for example. The base material described in Patent Document 1 is configured by mixing a thermoplastic resin and a fiber material (such as kenaf). Thereby, it can shape | mold to a predetermined shape by pressing the base material of the heated state with a shaping | molding die.

  As such a molding apparatus, for example, those described in Patent Documents 2 to 3 below are known. The molding apparatus described in Patent Documents 2 to 3 includes a cutting blade for cutting an outer periphery unnecessary portion. Patent Document 2 describes a configuration that cuts an unnecessary portion by operating a cutting blade in conjunction with the movement of a mold. Patent Document 3 describes a configuration in which a cutting blade is operated after press molding with a molding die.

  Moreover, in the molded article which is illustrated by patent document 1, the thing of the shape which contains an undercut part in the peripheral edge part of a molded article is also known, for example. In order to mold such an undercut part, it is necessary to provide a slide mold separately from the mold, and the undercut part is formed by moving the slide mold to the inside of the molded product. In this case, a cutting blade is provided in the slide mold, and this cutting blade is caused to enter, for example, a recess provided in the molding die, thereby cutting an unnecessary outer peripheral portion in the undercut portion.

JP 2005-1314 A JP 2002-254461 A JP 2009-262204 A

  However, in the configuration in which the cutting blade as described above enters the recess, the cut outer peripheral unnecessary portion is pushed into the cutting blade and enters the recess. As a result, it becomes difficult to pay out the unnecessary portion of the outer periphery, and it is necessary to pay out the unnecessary portion of the outer periphery manually. In addition, there is a concern that the outer peripheral unnecessary portion that is heated immediately after the press molding adheres to the mold and the dispensing becomes more difficult. As described above, the work of paying out the unnecessary portion of the outer periphery is mostly carried out manually by the operator, resulting in poor workability and reduced productivity.

  The present invention has been completed based on the above circumstances, and an object of the present invention is to provide a molding apparatus capable of paying out an unnecessary outer peripheral portion from the molding apparatus without relying on human hands.

  In order to solve the above problems, the molding apparatus of the present invention is capable of relative movement in the horizontal direction, and can mold a pair of molds capable of press-molding a base material and an undercut portion on a side portion of the base material. A molded product is formed by cutting an unnecessary outer peripheral portion that protrudes outside from a molding space formed by closing the pair of molds and the slide mold of the base material. A lower cutting blade that cuts a lower unnecessary portion that protrudes downward from the molding space in the unnecessary outer periphery, and is connected to the lower unnecessary portion in the unnecessary outer portion from the molding space. The side cutting blade that cuts the unnecessary side portion protruding to the side and the lower unnecessary portion are separated from the pair of molds, so that both the lower unnecessary portion and the side unnecessary portion are collectively lowered. Pay out Characterized in that and a device brewed.

  In the present invention, the side unnecessary portion of the outer peripheral unnecessary portion is cut by the side cutting blade, the lower unnecessary portion of the outer peripheral unnecessary portion is cut by the lower cutting blade, and then the lower unnecessary portion is paired by the dispensing device. By detaching from the mold, both the lower unnecessary portion and the side unnecessary portion can be paid out downward collectively.

  The said structure WHEREIN: The said payout apparatus is good also as a thing provided with the pin which can be stabbed in the said lower unnecessary part, and the moving apparatus which moves the said pin to an up-down direction. With such a configuration, after the pin is pierced into the lower unnecessary portion, the lower unnecessary portion can be detached from the pair of molds by moving downward, and can be paid downward.

  The lower unnecessary portion may be held in a horizontally immovable manner so that the lower unnecessary portion can be detached from the pair of molds along with the relative movement of the pair of molds. Good. As a result, even if the lower unnecessary portion is attached to the outer surfaces of the pair of molds, the lower unnecessary portion can be detached from the outer surface of the mold only by relatively moving the pair of molds.

  Moreover, the air blower which can cool at least a side part unnecessary part by sending in air can be provided. For example, when press molding is performed in a state in which the base material is preheated, the side unnecessary portion that is a part of the base material is also in a heated state, and is easily attached to the pair of molds. In this invention, this can be cooled and solidified by sending air into a side part unnecessary part with an air blower. Thereby, it can suppress that the side part unnecessary part after a cutting | disconnection adheres to the outer surface of a pair of type | mold, etc., and a payout operation | work becomes easy.

  ADVANTAGE OF THE INVENTION According to this invention, the shaping | molding apparatus which can pay out an outer periphery unnecessary part from a shaping | molding apparatus can be provided without relying on a hand.

1 is a front view of a backboard according to an embodiment of the present invention. Sectional drawing of the shaping | molding apparatus which concerns on one Embodiment of this invention (corresponding to the cross section cut | disconnected by the AA line of FIG. 1). The expanded sectional view which expanded the side part vicinity in the shaping | molding apparatus of FIG. FIG. 4 is an enlarged cross-sectional view illustrating a state in which a pair of molds are closed in FIG. 3. The expanded sectional view which shows the state which cut | disconnected the shaping | molding of the undercut part in FIG. 3, and a shaping | molding side part unnecessary part. The sectional side view in the shaping | molding apparatus of FIG. 2 (it respond | corresponds to the cross section cut | disconnected by the BB line of FIG. 1). The sectional side view in the shaping | molding apparatus of FIG. 2 (it respond | corresponds to the cross section cut | disconnected by CC line of FIG. 1). Sectional drawing which shows the state which cut | disconnected the lower unnecessary part in FIG. Sectional drawing which shows the state which stabbed the pin in the lower unnecessary part in FIG. Sectional drawing which shows the state in which a lower unnecessary part falls in FIG.

  An embodiment of the present invention will be described with reference to the drawings of FIGS. The molding apparatus 1 in this embodiment forms a molded product 60 used for an interior member of a vehicle, for example. The molded product 60 in this embodiment is used for a backboard attached to the back surface of a vehicle seat, for example.

  First, the molded product 60 will be described with reference to FIG. FIG. 1 is a front view of the molded product 60. The molded product 60 has a substantially rectangular shape when viewed from the front, and has a curved shape that is recessed toward the front side in the paper penetration direction in FIG. The molded product 60 is formed by press-molding the base material 70 by the molding apparatus 1 and cutting the entire circumference of the outer peripheral unnecessary portion 71 that is the peripheral end portion of the base material 70 together with the press molding. At that time, the upper unnecessary portion 74 and the substantially U-shaped portion (indicated by the shaded portion in FIG. 1) of the outer peripheral unnecessary portion 71 are divided by using the cut portion D4 shown in FIG. 1 as a boundary. In the present embodiment, the substantially U-shaped portion excluding the unnecessary upper portion 74 out of the outer peripheral unnecessary portion 71 includes a pair of side unnecessary portions 72 located on the left and right sides in FIG. The lower unnecessary part 73 which connects lower end parts is comprised. In FIG. 1, the base material 70 after the press molding and before removing the side unnecessary portions 72 and the lower unnecessary portions 73 is illustrated.

  Such a base material 70 is formed, for example, in a mat shape by a former after mixing a vegetable fiber material such as kenaf fiber and a thermoplastic resin such as polypropylene with a blender. The mat-like base material 70 is formed into a curved shape by being preformed, and then press-molded by the molding apparatus 1. In addition, you may perform press molding in the state which makes a mat shape, without performing preforming with respect to the base material 70. FIG.

  Next, the shaping | molding apparatus 1 in this embodiment is demonstrated. FIG. 2 is a cross-sectional view showing the molding apparatus 1 in the present embodiment, and corresponds to a cross section cut along the line AA in FIG. As shown in FIG. 2, the molding apparatus 1 includes a core mold 3 and a cavity mold 4 capable of press-molding the base material 70, a slide mold 5, a dispensing device 30 (illustrated in FIG. 7), a blower device 40, and the like. Yes. The molding apparatus 1 according to the present embodiment is installed in such a manner that the back side (the back side of the drawing) in FIG. 2 is the upper side in the vertical direction and the front side is the lower side in the vertical direction. That is, the molded product 60 is molded in a state where the upper side shown in FIG. 1 is the upper side in the vertical direction and the lower side shown in FIG. 1 is the lower side in the vertical direction. The core mold 3 and the cavity mold 4 correspond to “a pair of molds” of the present invention. In the following description, these may be collectively referred to as a pair of molds 2.

  First, the pair of molds 2 and the slide mold 5 will be described. The molding apparatus 1 includes a core-side base 10 and a cabinet-side base 7 disposed so as to face the core-side base 10. The core mold 3 is installed at the center of the core-side base 10, and the cavity mold 4 is installed on the cavity-side base 7 at a position facing the core mold 3. For example, a plurality of hydraulic cylinders (not shown) are provided behind the cabinet-side base 7. By driving these hydraulic cylinders, the cabinet-side base 7 has a parallel posture with the core-side base 10. It is possible to move in the horizontal direction while keeping it. That is, the cavity mold 4 is configured to be movable relative to the core mold 3 in the horizontal direction.

  When the pair of molds 2 and the slide mold 5 are closed (the state shown in FIG. 5), a molding space S for molding the molded product 60 is formed between the opposing surfaces of the core mold 3 and the cavity mold 4. Thereby, when the base material 70 before being molded into the molded product 60 is set in the core mold 3 and the pair of molds 2 and the slide mold 5 are closed, the base material 70 corresponds to a predetermined shape corresponding to the shape of the molding space S. Press molded into shape. The molding space S has a concave shape on the side of the mold 4, and the body portion 61 of the molded product 60 is molded by the central portion 12 that constitutes the central portion of the molding space S, thereby constituting the outer peripheral portion of the molding space S. The outer peripheral standing wall portion 62 of the molded product 60 is formed by the outer peripheral end portion 13.

  As shown in FIG. 2, the slide molds 5 are respectively installed on the left and right sides of the core mold 3 in the core-side base 10. The slide mold 5 is supported so as to be slidable in the left-right direction in FIG. 2 with respect to the support base 8 provided on the core-side base 10, and in the left-right direction in FIG. 2 by driving means (for example, a hydraulic cylinder) not shown. Can be driven back and forth.

  As shown in FIGS. 2 and 3, in the slide mold 5, the slide mold side cutting blade 15 (hereinafter referred to as “cutting mold side cutting blade 15”) capable of cutting the side unnecessary portion 72 of the base material 70 is provided at the tip portion facing the pair of molds 2. , Sometimes referred to as a cutting blade 15). The cutting blade 15 has a curved surface 15 </ b> A having a circular arc shape in cross section formed in a shape in which the tip of the slide mold 5 is recessed. The curved surface 15A is formed in the slide mold 5 so as to extend in the vertical direction (the front and back direction in FIG. 2).

  Further, in the core mold 3 and the cavity mold 4, a first cutting recess 20 into which the slide mold 5 can enter is formed at a position facing the slide mold 5. The first cutting recess 20 is formed of a facing surface 4 </ b> A facing the core mold 3 and a side surface 3 </ b> A of the core mold 3 at the peripheral end of the mold 4. The first cutting recess 20 communicates with the outer peripheral end 13 of the molding space S. Further, a second cutting recess 22 into which the tip of the slide mold 5 can enter is provided at a position facing the slide mold 5 on the side of the core mold 3. The second cutting recess 22 is located closer to the base end side (lower side in FIG. 2) of the core mold 3 than the first cutting recess 20.

  As shown in FIG. 5, in a state where the slide die 5 is inserted into the first cutting recess 20 and the second cutting recess 22, one end side of the curved surface 15 </ b> A of the cutting blade 15 is in the molding space S in plan view. Of the outer peripheral end portion 13, it is flush with the surface 4 </ b> D on the side of the mold 4, and the other end side of the curved surface 15 </ b> A is the surface 3 </ b> B facing the core-side base 10 in the core die 3. It is the same structure as a part).

  With the above configuration, after the base material 70 is press-molded by the pair of molds 2, the slide mold 5 is caused to enter the first cutting recess 20 and the second cutting recess 22, so that the outer peripheral end of the molding space S A part (side unnecessary portion 72) of the base material 70 protruding outside from 13 can be cut by the cutting blade 15. That is, the cutting blade 15 and the first cutting recess 20 and the second cutting recess 22 are side cutting blades for cutting the side unnecessary portion 72 that protrudes laterally from the molding space S in the outer peripheral unnecessary portion 71. Is configured.

  A curved undercut portion 72 </ b> A that follows the shape of the curved surface 15 </ b> A of the cutting blade 15 is formed at the cut portion of the base material 70. Note that the “undercut portion” referred to here is an opposing surface facing the core-side base 10 at the end portion of the outer peripheral standing wall portion 62 of the molded product 60 (the cavity die 4 as it goes toward the outer periphery of the pair of dies 2). It is a portion including the approaching surface) and is a portion that cannot be cut by the shearing of the pair of molds 2. In other words, the slide mold 5 forms the undercut portion 72A that cannot be formed by shearing the pair of molds 2 in the molding apparatus 1 configured to press-mold the base material 70 as in the present embodiment. 70 has a function of cutting the side unnecessary portion 72 of 70.

  FIG. 6 is a side sectional view showing the molding apparatus 1 and corresponds to a section cut along the line BB in FIG. As shown in FIG. 6, in the side part of the core mold 3, the part located above the first cutting recess 20 does not form the outer peripheral standing wall part 62 in the molded product 60, and forms only the main body part 61. The upper end portion of the side unnecessary portion 72 can be cut (pushed out) by the core die 3, the cavity die 4 and the slide die 5 (the cut portion is indicated by reference numeral D4). 1). 1 to 6 are cut by the shearing of the pair of molds 2, but are removed together with the molded product 60 when the molded product 60 is removed, and then removed.

  7 to 10 are side sectional views showing lower portions of the pair of molds 2 in the molding apparatus 1 and corresponding to a section cut along a line CC in FIG. As shown in FIGS. 7 to 8, between the lower end portion 3U of the molding surface of the core mold 3 and the lower end portion 4U of the molding surface of the cavity mold 4, the lower portion of the outer peripheral unnecessary portion 71 of the base material 70 is unnecessary. The portion 73 can be cut by shearing. That is, the lower cutting edge 16 that cuts the lower unnecessary portion 73 that protrudes downward from the molding space S among the outer peripheral unnecessary portions, respectively, at the lower end portion 3U in the core mold 3 and the lower end portion 4U of the molding space S in the mold 4. Is configured. Further, the portion below the lower end portion 4U of the mold 4 protrudes toward the core side base 10, and the surface facing the core side base 10 is a taper that slopes downward toward the core side base 10. A slanted surface 4B is formed.

  The above-described cutting means for the unnecessary outer periphery portion 71 is summarized as follows. First, the side unnecessary portions 72 on both sides shown in FIG. 1 can be cut by shearing between the respective cutting blades 15 and the core mold 3 (the cut portion is indicated by reference sign D2). The lower unnecessary portion 73 shown in FIG. 1 is cut by the lower cutting blade 16 (the cut portion is indicated by reference sign D3). Moreover, although not shown in figure, the lower part of both the cutting blades 15 and the right-and-left both sides of the lower end part 3U in the core type | mold 3 become a structure which continues in a front view, respectively. As a result, as shown in FIG. 1, the lower portion of each side unnecessary portion 72 and the left and right sides of the lower unnecessary portion 73 are connected to each other and cut from the base material 70. Further, the side unnecessary portion 72 and the upper unnecessary portion 74 can be divided (cutting portion D4) by the core die 3, the cavity die 4 and the slide die 5.

  That is, when the pair of molds 2 is closed, the cutting portion D3 can be cut by shearing the core mold 3 and the cavity mold 4 together with the press molding of the base material 70, and then the slide mold 5 Each of the cutting blades 15 can cut the cutting location D2 and the cutting location D4. Thereby, the both side unnecessary part 72 and the lower part unnecessary part 73 become a structure cut | disconnected from the base material 70. FIG.

  Next, the payout device 30 for paying out the unnecessary portions 72 and the lower unnecessary portion 73 downward will be described. As shown in FIG. 7, a payout device 30 is provided below the core mold 3 in the core-side base 10. The payout device 30 includes a pin 31 that can be pierced into the lower unnecessary portion 73 and a cylinder 32 (moving device) that moves the pin 31 in the vertical direction.

  The cylinder 32 is fixed to the core-side base 10 with the rod 33 of the cylinder 32 being extendable in the vertical direction. An arm 34 extending in the horizontal direction is attached to the tip of the rod 33, and a pin 31 is provided on the tip of the lower surface of the arm 34 so that the tip is directed downward. That is, the pin 31 can move up and down by driving the cylinder 32 and is fixed in the horizontal direction. In addition, as such a cylinder 32, a hydraulic cylinder, an air cylinder, etc. can be used suitably.

  As shown in FIG. 8, in the state where the rod 33 of the cylinder 32 is located at the top dead center, the pin 31 is arranged above the inclined surface 4B (and hence the lower unnecessary portion 73) of the mold 4 when the mold is closed. It has become. In the core mold 3, a concave portion 3 </ b> D for allowing the rod 33 to rise is formed in an upper portion at a location facing the payout device 30. As shown in FIG. 10, in the state where the rod 33 of the cylinder 32 is located at the bottom dead center, the pin 31 is arranged further downward than the position where the pin 31 is stuck into the lower unnecessary portion 73 (the state shown in FIG. 9). It is the composition which becomes.

  Next, the air blower 40 will be described. As shown in FIGS. 2 to 3, a blower 40 is provided on the support base 8 that supports the slide mold 5. The blower 40 includes a nozzle 41 from which air is ejected and a pipe 42 embedded in the support base 8. The nozzle 41 is provided on the surface of the support base 8 facing the second cutting recess 22, and the nozzle 41 is arranged so as to face the side unnecessary portion 72. One end side of the pipe 42 is connected to the nozzle 41, and the other end side is connected to an air supply source (not shown) (for example, a blower or a compressor). With this configuration, when air is supplied from the air supply source to the nozzle 41 via the pipe 42, the air can be ejected from the nozzle 41 to the side unnecessary portion 72. Thereby, the air blower 40 becomes a structure which can cool the side part unnecessary part 72 by sending air into the side part unnecessary part 72. FIG. In addition, it is good also as a structure which cools the lower unnecessary part 73 by sending the air from the air blower 40 into the lower unnecessary part 73. FIG.

  The present embodiment has the above-described structure, and the operation thereof will be described subsequently. First, the base material 70 before molding is set in the core mold 3 in a state where the pair of molds 2 are opened (the state shown in FIGS. 3 and 7). In addition, the base material 70 set to the core type | mold 3 is heated previously, and the thermoplastic resin inside the base material 70 is in a melted and softened state. Further, the slide mold 5 is held at the initial position retracted to the outside of the first cutting recess 20 and the second cutting recess 22.

  From this state, when the mold 4 is moved toward the core mold 3 and the pair of molds 2 are closed, the side unnecessary portions 72 on both sides of the unnecessary outer peripheral portions 71 are the outer peripheral end portions of the molding space S. It will be in the state which protruded from 13 to the side (state of FIG. 4). Moreover, the lower unnecessary part 73 which protruded from the downward direction of the shaping | molding space S among the outer periphery unnecessary parts 71 is cut | disconnected by the shear (lower cutting blade 16) of the core type | mold 3 and the cavity type | mold 4 (state of FIG. 8).

  Subsequently, by driving both slide dies 5, when each cutting blade 15 enters the corresponding first cutting recess 20 and second cutting recess 22, the side unnecessary portion 72 is cut (cutting point D2). , D4), and at the same time, an undercut portion 72A is formed (state shown in FIG. 5). Thereby, the outer periphery unnecessary part 71 is cut | disconnected from the base material 70, and the base material 70 is shape | molded by the shape corresponding to the shape of the shaping | molding space S (shape of the molded product 60). After the molding of the molded product 60 is completed, both slide dies 5 are moved to the outside of the first cutting recess 20 and the second cutting recess 22 and waited at the initial position. In addition, after the molding is completed, air is ejected from the nozzle 41 of the blower 40 toward the side unnecessary portion 72. Thereby, the side unnecessary part 72 is cooled and solidified.

  After the completion of molding, the lower unnecessary portion 73 is placed on the inclined surface 4B of the mold 4 as shown in FIG. Therefore, the cylinder 32 of the payout device 30 is driven and the rod 33 is moved downward, so that the pin 31 is stuck into the lower unnecessary portion 73 (state shown in FIG. 9). In this state, the mold 4 is moved away from the core mold 3 (horizontal direction) to open the mold. At this time, the lower unnecessary portion 73 is held immovable in the horizontal direction by the pin 31 being pierced from above. For this reason, when the mold 4 is moved, the lower unnecessary portion 73 is detached from the inclined surface 4B of the mold 4. That is, the pin 31 of the present embodiment is a holding means that allows the lower unnecessary portion 73 to be detached from the mold 4 as the mold 4 (one of the pair of molds) moves. Yes.

  After retracting the mold 4, as shown in FIG. 10, when the rod 33 of the cylinder 32 is further moved downward, the lower unnecessary portion 73 (and thus the both side unnecessary portions 72 connected thereto) is connected to the pin 31. Pressed and pulled downward. As a result, even when the lower unnecessary portion 73 or the side unnecessary portion 72 is attached to the core mold 3, it is possible to peel them off from the core mold 3. Thereafter, the lower unnecessary portion 73 and the side unnecessary portions 72 are removed from the pins 31 by their own weights and fall below the pair of molds 2. Thereby, both the lower unnecessary part 73 and the side unnecessary part 72 can be paid out collectively. Thereafter, the dropped unnecessary lower portion 73 and both side unnecessary portions 72 are recovered.

  In other words, in the present embodiment, the dispensing device 30 moves the lower unnecessary portion 73 and the both side unnecessary portions 72 downward so that they are separated from the core mold 3 and become the lower unnecessary portion 73 and the both side unnecessary portions 72. It can give a chance to fall. Thus, the lower unnecessary portion 73 and the both side unnecessary portions 72 can be dropped downward, so that it is not necessary to separately provide means for transporting the lower unnecessary portion 73 and the both side unnecessary portions 72.

  As described above, in the present embodiment, both the lower unnecessary portion 73 and the side unnecessary portion 72 are bundled together by detaching the lower unnecessary portion 73 from the core die 3 below the core die 3. Thus, a dispensing device 30 for dispensing downward from the pair of molds 2 is provided. Thereby, the outer peripheral unnecessary part (the lower unnecessary part 73 and the side unnecessary part 72) can be paid out from the molding apparatus 1 without relying on human hands.

  With this configuration, the side unnecessary portion 72 of the outer peripheral unnecessary portion 71 is cut by the cutting blade 15, the lower unnecessary portion 73 of the outer peripheral unnecessary portion 71 is cut by the lower cutting blade 16, and then the lower portion is removed by the dispensing device 30. By moving the unnecessary portion 73 downward, both the lower unnecessary portion 73 and the side unnecessary portion 72 connected thereto can be paid out from the pair of molds 2.

  In particular, in the present embodiment, the side unnecessary portion 72 is cut by the slide mold 5 and at the same time, an undercut portion 72A can be formed at the cut portion. In order to form such an undercut part 72A, it is necessary to allow the slide mold 5 to enter the inside of the pair of molds 2 (the first cutting recess 20 and the second cutting recess 22). Therefore, the cut unnecessary side portion 72 is pushed into the tip of the cutting blade 15 and enters the second cutting recess 22 as shown in FIG. When a member that has entered such a recess is paid out by hand, for example, the payout operation becomes difficult. In this regard, in the present embodiment, by moving the lower unnecessary portion 73 downward, the side unnecessary portion 72 that has entered the second cutting recess 22 can also be paid out at the same time. It can be done easily.

  The payout device 30 also includes a pin 31 that can be pierced into the lower unnecessary portion 73 and a cylinder 32 that moves the pin 31 in the vertical direction. With such a configuration, the lower unnecessary portion 73 can be pulled by moving the pin 31 downward after piercing the lower unnecessary portion 73.

  Further, by piercing the pin 31 into the lower unnecessary portion 73, the lower unnecessary portion 71 can be held immovably in the horizontal direction. As a result, the lower unnecessary portion 73 can be detached from the mold 4 simply by moving the mold 4.

  Moreover, the air blower 40 which can cool the side part unnecessary part 72 by sending in air is provided. When press molding is performed in a state where the base material 70 is preheated as in the present embodiment, the side unnecessary portion 72 which is a part of the base material 70 is also heated, and the pair of molds 2 and the like It is easy to adhere. In this embodiment, this can be cooled and solidified by blowing air to the side unnecessary portion 72 by the blower 40. Thereby, it can suppress that the side part unnecessary part 72 after a cutting | disconnection adheres to a pair of type | molds 2 etc., and a paying-out work becomes easy.

  Furthermore, in this embodiment, the lower unnecessary portion 73 of the outer peripheral unnecessary portion 71 comes into contact with the inclined surface 4B of the mold 4 after being cut. For this reason, the heat of the lower unnecessary part 73 is radiated to the mold 4, and as a result, the lower unnecessary part 73 is easily cooled. On the other hand, the side unnecessary portion 72 has a small area in contact with the pair of molds 2 and is not easily cooled. In view of this, air is jetted toward the side unnecessary portion 72. Thereby, the side part unnecessary part 72 which is comparatively hard to cool can be cooled effectively.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) The configuration of the lower cutting blade and the side cutting blade is not limited to the configuration exemplified in the above embodiment. The lower cutting blade only needs to be configured to be able to cut the lower unnecessary portion that protrudes downward from the molding space in the outer peripheral unnecessary portion, and the side cutting blade protrudes laterally from the molding space in the outer unnecessary portion. What is necessary is just a thing of the structure which can cut | disconnect a side part unnecessary part. Further, the shape of the molding space S can be changed as appropriate in accordance with the shape of the molded product 60.

  (2) In the above embodiment, the payout device 30 is configured to pierce the pin 31 into the lower unnecessary portion 73, but is not limited thereto. As the payout device 30, for example, the lower unnecessary portion 73 may be grasped with a clamp or the like and moved downward.

  (3) In the above embodiment, the cylinder is exemplified as the moving device that moves the pin 31 in the vertical direction, but an electric motor or the like may be used as the moving device.

  (4) In the above embodiment, the pin 31 is pierced as the holding means for holding the outer peripheral unnecessary portion 71 in the relative movement direction of the pair of molds 2, but is not limited to this. For example, the holding means may be configured to hold the lower unnecessary portion 73 with a clamp or the like.

  (5) The air blower 40 should just be the structure which can cool the outer periphery unnecessary part 71 by sending in air, and is not limited to the structure of the said embodiment.

  (6) In the above embodiment, the configuration in which the mold mold 4 is closed (or mold open) by moving the mold 4 with respect to the core mold 3 is exemplified, but the present invention is not limited to this. The pair of molds 2 only needs to be relatively movable in the horizontal direction. For example, both the pair of molds 2 may be configured to be movable.

  (7) In the embodiment described above, the slide mold 5 is provided on both the left and right sides of the core mold 3 and the side portions on both sides of the base material 70 are cut as the side unnecessary portions 72. However, the present invention is not limited to this configuration. . For example, the slide mold 5 may be provided only on one side of the left and right sides of the core mold 3.

  (8) In the above-described embodiment, the case where a substantially U-shaped part composed of the lower unnecessary portion 73 and the pair of side unnecessary portions 72 is paid out is exemplified, but the present invention is not limited to this. For example, it is good also as a structure which pays out the components which make the substantially L shape comprised from the side part unnecessary part 72 and the lower part unnecessary part 73. FIG.

DESCRIPTION OF SYMBOLS 1 ... Molding apparatus 2 ... A pair of type | mold 3 ... Core type | mold 4 ... Cavity type | mold 5 ... Slide type | mold 15 ... Slide type | mold side cutting blade (side part cutting blade)
16 ... Lower cutting blade 20 ... First cutting recess (constitutes a side cutting blade)
22 ... Second cutting recess (constitutes a side cutting blade)
30 ... Dispensing device 31 ... Pin (holding means)
32 ... Cylinder (moving device)
40 ... Blower 60 ... Molded product 70 ... Substrate 71 ... Outer periphery unnecessary portion 72 ... Side portion unnecessary portion 72A ... Undercut portion 73 ... Lower unnecessary portion S ... Molding space

Claims (4)

A pair of molds that are capable of relative movement in the horizontal direction and capable of press-molding the substrate;
A slide mold capable of forming an undercut portion on a side portion of the base material,
Among the base materials, a molding apparatus for molding a molded product by cutting an unnecessary outer portion protruding outside from a molding space formed by closing the pair of molds and the slide mold,
A lower cutting blade for cutting a lower unnecessary portion protruding downward from the molding space in the outer peripheral unnecessary portion;
A side cutting blade that cuts a side unnecessary portion that protrudes laterally from the molding space in connection with the lower unnecessary portion of the outer peripheral unnecessary portion;
A molding apparatus comprising: a dispensing device that dispenses the lower unnecessary portion and the side unnecessary portion together downward by detaching the lower unnecessary portion from the pair of molds. The dispensing device is
A pin that can be inserted into the lower unnecessary portion;
The molding apparatus according to claim 1, further comprising a moving device that moves the pin in a vertical direction.   A holding means is provided for holding the lower unnecessary portion in a horizontally immovable manner so that the lower unnecessary portion can be detached from the pair of molds with relative movement of the pair of molds. The molding apparatus according to claim 1 or 2.   The molding apparatus according to any one of claims 1 to 3, further comprising a blower capable of cooling at least the side unnecessary portion by feeding air.

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