JP6852451B2 - Vertical injection molding equipment and manufacturing method of resin products using it - Google Patents

Description

The present invention relates to a vertical injection molding apparatus and a method for manufacturing a resin product using the same. More specifically, a molded product is molded between a lower mold provided on a turntable and an upper mold provided on an elevating body. The present invention relates to a vertical injection molding apparatus and a method for manufacturing a resin product using the same.

As a conventional vertical injection molding device, a rotatable turntable and an elevating body that can be raised and lowered with respect to the turntable are provided, and a lower mold provided on the turntable and an upper mold provided on the elevating body are provided. It is generally known that a molded product is molded between the two. In this vertical injection molding apparatus, the molded product is collected in the collection unit by the transfer mechanism. Then, the molded product in the collection unit is manually set in the gate cutting device, and the gate is cut by pressing the start button to separate the resin product and the runner.

However, in the conventional vertical injection molding apparatus, the molded product is manually set in the gate cutting apparatus and the gate is cut, so that the production efficiency is poor. Patent Document 1 discloses a vertical injection molding apparatus provided with a gate cutting mechanism on the outside of a turntable and automatically cutting a gate of a molded product. However, the technique disclosed in Patent Document 1 requires a space for installing the gate cut mechanism on the outside of the turntable, resulting in an increase in size as a whole. Further, the gate cut mechanism has a complicated structure.

Japanese Unexamined Patent Publication No. 63-82720

The present invention has been made in view of the above situation, and provides a vertical injection molding apparatus having a small and simple structure capable of automatically cutting a gate of a molded product, and a method for manufacturing a resin product using the same. The purpose is.

In order to solve the above problem, the invention according to claim 1 includes a rotatable turntable and an elevating body that can be raised and lowered with respect to the turntable, and is provided on the turntable. A vertical injection molding device that molds a molded product between a mold and an upper mold provided on the elevating body, and is arranged on the turntable and a transfer mechanism for transferring the molded product in the lower mold. It is a gist to include a gate cut mechanism for cutting the gate of the molded product transferred by the transfer mechanism and separating the resin product and the runner.
The invention according to claim 2 is the invention according to claim 1, wherein the turntable is provided with a protrusion mechanism for projecting the molded product in the lower mold, and the protrusion mechanism and the gate cut mechanism are provided. The gist is that it is operated by a common fluid supply unit.
The invention according to claim 3 is the invention according to claim 1 or 2, wherein the gate cut mechanism is provided with a first chute for sending the resin product to the outside of the turntable. The first chute is tiltably supported between a delivery state in which the resin product is sent out and a non-delivery state in which the resin product is held, and the delivery state and the non-delivery state are supported by the transfer operation of the transfer mechanism. The gist is that it can be switched to the state.
The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein a second chute for sending the resin product to the product recovery unit is provided outside the turntable. The second chute is tiltably supported between a sending state in which the resin product is sent out and a non-delivery state in which the resin product is held, and the sending state is caused by the raising and lowering operation of the elevating body. The gist is that it can be switched to the non-sending state.
In order to solve the above problem, the invention according to claim 5 is a manufacturing direction of a resin product using the vertical injection molding apparatus according to any one of claims 1 to 4, wherein the transfer mechanism is used. The transfer step of transferring the molded product in the lower mold to the gate gut mechanism and the gate cut mechanism cut the gate of the molded product transferred by the transfer mechanism to form the resin product and the runner. The gist is to provide a separation step for separating into.

According to the vertical injection molding apparatus of the present invention, a transfer mechanism for transferring the molded product in the lower mold and a resin product and a runner are formed by cutting the gate of the molded product arranged on the turntable and transferred by the transfer mechanism. It is equipped with a gate cut mechanism that separates into. As a result, the transfer mechanism transfers the molded product in the lower mold to the gate gut mechanism, and the gate cut mechanism cuts the gate of the molded product transferred by the transfer mechanism to separate the resin product and the runner. Therefore, the gate of the molded product can be automatically cut. Further, the structure can be made smaller and simpler than the conventional one having a gate cut mechanism on the outside of the turntable.
Further, when the turntable is provided with a protrusion mechanism, and the protrusion mechanism and the gate cut mechanism are operated by a common fluid supply unit, the gate cut mechanism utilizes the working fluid of the protrusion mechanism. The gate of the molded product can be cut.
Further, the gate cut mechanism is provided with a first chute, and the first chute is tiltably supported between a delivery state and a non-delivery state, and the transfer operation of the transfer mechanism causes the first chute. When the delivery state and the non-delivery state can be switched, the resin product can be delivered by the first chute by utilizing the transfer operation of the transfer mechanism.
Further, a second chute is provided outside the turntable, and the second chute is tiltably supported between a delivery state and a non-delivery state, and the elevating body is moved up and down. When the transmission state and the non-delivery state can be switched by the above method, the resin product can be delivered by the second chute by utilizing the raising / lowering operation of the elevating body.
According to the method for manufacturing a resin product of the present invention, the transfer mechanism transfers the molded product in the lower mold to the gate gut mechanism, and the gate cut mechanism cuts the gate of the molded product transferred by the transfer mechanism. It is provided with a separation step of separating the resin product and the runner. As a result, the gate of the molded product can be automatically cut. Further, the structure can be made smaller and simpler than the conventional one having a gate cut mechanism on the outside of the turntable.

The present invention will be further described in the following detailed description with reference to the plurality of references mentioned with reference to non-limiting examples of typical embodiments according to the invention. Similar parts are shown through several figures.
It is a top view of the vertical injection molding apparatus (removal state of an elevating body) which concerns on Example. It is the II arrow view of FIG. It is an enlarged view of the arrow III of FIG. 1, (a) shows the non-delivery state of the first shoot, and (b) shows the delivery state of the first shoot. It is explanatory drawing for demonstrating the gate cut mechanism which concerns on Example. It is a perspective view of the 1st shoot. It is an operation explanatory view of the said vertical injection molding apparatus, (a) shows the state which the lower die was positioned at a predetermined position, and (b) shows the state where the gate cut mechanism was positioned at a predetermined position. It is an operation explanatory view of the said vertical injection molding apparatus, (a) shows the state during molding of a molded article, (b) shows the state which the elevating body is raised after molding of a molded article, (c) is below. Indicates a state in which the molded product is lifted from the mold. It is an operation explanatory view of the said vertical injection molding apparatus, (a) shows the state which the molded article was set in the gate cut mechanism, (b) shows the state which the gate of the molded article was cut, and (c) is the gate. Indicates a state in which the runner is lifted from the cutting mechanism. It is explanatory drawing for demonstrating another tilting form of the 1st shoot, (a) shows the state which the runner grip part is lowered, and (b) shows the state which the runner grip part is raised.

The matters shown here are for exemplifying and exemplifying embodiments of the present invention, and are considered to be the most effective and effortless explanations for understanding the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this regard, it is not intended to show structural details of the invention beyond a certain degree necessary for a fundamental understanding of the invention, and some embodiments of the invention are provided by description in conjunction with the drawings. It is intended to clarify to those skilled in the art how it is actually realized.

<Vertical injection molding equipment>
The vertical injection molding apparatus according to the present embodiment includes a rotatable turntable (2) and an elevating body (3) that can be raised and lowered with respect to the turntable, and is a lower mold provided on the turntable. A vertical injection molding apparatus (1) for molding a molded product (10) between the (7) and the upper mold (8) provided on the elevating body, and the molded product (10) in the lower mold (7). ) And the resin product (11) by cutting the gate (10a) of the molded product (10) arranged on the turntable (2) and transferred by the transfer mechanism (5). It includes a gate cut mechanism (4) that separates from the runner (12) (see, for example, FIGS. 1 to 3 and the like).

The location, number, etc. of the lower mold and the gate cut mechanism with respect to the turntable are not particularly limited. Further, the use, number, etc. of the above resin products are not particularly limited. Further, the transfer mechanism (5) includes, for example, a runner grip portion (26) capable of gripping the runner (12), and the runner grip portion is positioned at a predetermined position (A) by rotation of the turntable (2). It can be provided so as to be able to move up and down with respect to the lower mold (7) or the gate cut mechanism (4) (see, for example, FIG. 2 and the like). As a result, the molded product in the lower mold can be easily transferred to the gate cut mechanism.

As the vertical injection molding apparatus according to the present embodiment, for example, the turntable (2) is provided with a protrusion mechanism (22) for projecting the molded product (10) in the lower mold (7). Examples of the mechanism (22) and the gate cut mechanism (4) include a form (for example, see FIG. 4 and the like) operated by a common fluid supply unit (20).

As the vertical injection molding apparatus according to the present embodiment, for example, the gate cut mechanism (4) is provided with a first chute (31) for sending the resin product (11) to the outside of the turntable 2. The first chute (31) is tiltably supported between a delivery state (P1) for sending out the resin product and a non-delivery state (P2) for holding the resin product, and the transfer mechanism (5). A form (for example, see FIG. 3 or the like) in which the transmission state (P1) and the non-delivery state (P2) can be switched by the transfer operation of the above can be mentioned.

In the case of the above-described embodiment, for example, the transfer mechanism (5) includes a runner grip portion (26) capable of gripping the runner, and the runner grip portion (26) is placed in a predetermined position (26) by rotation of the turntable (2). It is provided so as to be able to move up and down with respect to the lower mold (7) or the gate cut mechanism (4) located in A) and to be displaced in the horizontal direction. One is provided with a locking portion (27, 38), the other is provided with a locked portion (34, 39) that locks with the locking portion, and the first chute (31) is a runner. When the grip portion (26) rises, the locked portion and the locked portion are locked to each other in the sending state (P1), and the raised runner grip portion (26) moves to the outside of the turntable (2). When the displacement is made in the horizontal direction, the locked portion and the locked portion can be released from the locked portion to be in the non-delivery state (P2) (see, for example, FIGS. 3 and 9). As a result, the transfer operation of the transfer mechanism can be used more easily.
In this case, it is preferable that one of the locking portion and the locked portion is a permanent magnet (27) and the other is an attracting portion (34) that attracts the permanent magnet (see, for example, FIG. 3). ..

As the vertical injection molding apparatus according to the present embodiment, for example, a second chute (32) for sending the resin product (11) to the product collection unit is provided on the outside of the turntable (2). The second chute (32) is tiltably supported between a delivery state (Q1) for sending out the resin product and a non-delivery state (Q2) for holding the resin product, and is supported by the elevating body (3). Examples thereof include a form in which the transmission state (Q1) and the non-delivery state (Q2) can be switched by the ascending / descending operation (see, for example, FIG. 2).

In the case of the above-described embodiment, for example, the second chute (32) is connected to the elevating body (3) by the connecting portion (36), and when the elevating body rises, it is set to the sending state (Q1) and elevates. When the body descends, it can be in the non-delivery state (Q2) (see, for example, FIG. 2). As a result, the elevating operation of the elevating body can be used more easily. Examples of the connecting portion include a string-like body and a link structure.

<Manufacturing method of resin products>
The method for manufacturing the resin product according to the present embodiment is the manufacturing direction of the resin product using the vertical injection molding apparatus (1) according to the above-described embodiment, and is in the lower mold (7) by the transfer mechanism (5). A resin product is obtained by cutting the gate (10a) of the molded product transferred by the transfer mechanism (5) by the transfer step of transferring the molded product (10) to the gate gut mechanism (4) and the gate cut mechanism (4). A separation step of separating the (11) and the runner (12) is provided (see, for example, FIGS. 7 and 8).

The reference numerals in parentheses of each configuration described in the above-described embodiment indicate the correspondence with the specific configurations described in the examples described later.

Hereinafter, the present invention will be specifically described with reference to the drawings.

(1) Configuration of Vertical Injection Molding Device The vertical injection molding device 1 according to the present embodiment includes a turntable 2, an elevating body 3, a transfer mechanism 5, and a gate cut mechanism 4, as shown in FIGS. 1 to 3. I have. The vertical injection molding apparatus 1 molds a molded product 10 between a lower mold 7 provided on the turntable 2 and an upper mold 8 provided on the elevating body 3.

The turntable 2 is provided so as to be rotatable around a vertical axis by a rotating shaft 15 with respect to the base 14. Further, the elevating body 3 is provided so as to be able to move up and down along the vertical direction by a tie bar 16 erected on the base 14. That is, the elevating body 3 is provided above the turntable 2 so as to be able to move up and down with respect to the turntable 2.

The transfer mechanism 5 transfers the molded product 10 in the lower mold 7 to the gate cut mechanism 4, and also transfers the runner 12 separated by the gate cut mechanism 4 to the runner recovery unit 24. The transfer mechanism 5 includes a runner gripping portion 26 capable of gripping the runner 12. The runner grip portion 26 is provided so as to be able to move up and down with respect to the lower mold 7 or the gate cut mechanism 4 located at a predetermined position A by rotation of the turntable 2 and to be displaced in the horizontal direction. Further, the runner gripping portion 26 is provided with a permanent magnet 27 that attracts the suction portion 34 provided on the first chute 31, which will be described later. The permanent magnet 27 is arranged on the lower end side of a substantially L-shaped connecting portion 28 that hangs down from the support plate 26c described later.

The runner grip portion 26 includes a main body 26a, a pair of grippers 26b that are openably and closably supported by the main body 26a, and a support plate 26c that extends horizontally from the main body 26a. One end side of the support plate 26c is supported so as to be able to move up and down and rotatably around a vertical axis with respect to a support column 29 extending in the vertical direction. Further, the tip end side of the piston rod 30a of the drive cylinder 30 attached to the support column 29 is attached to one end side of the support plate 26c (see FIG. 2). In this drive cylinder 30, the piston rod 30a can be expanded and contracted with respect to the main body and can be rotated about an axis. Then, the runner grip portion 26 transfers the molded product 10 in the lower mold 7 to the gate cut mechanism 4 by rotating the turntable 2, expanding and contracting the drive cylinder 30, and opening and closing the runner grip portion 26 (FIGS. 7 and 7). 8). Further, the runner grip portion 26 transfers the runner 12 to the runner recovery portion 24 by rotating the drive cylinder 30 in the raised state and opening / closing the runner grip portion 26 (see FIG. 1).

The gate cutting mechanism 4 cuts the gate 10a of the molded product 10 transferred by the transfer mechanism 5 and separates the resin product 11 and the runner 12 (see FIG. 4). The gate cut mechanism 4 is arranged on the turntable 2 at a position facing the lower mold 7 (that is, a position rotated 180 degrees around the rotation axis 15 with respect to the lower mold 7) (see FIG. 6). .. Then, the lower mold 7 or the gate cut mechanism 4 is positioned at the predetermined position A by the rotation of the turntable 2.

The gate cutting mechanism 4 includes a mounting table 18 on which the molded product 10 is placed, and a plurality of cutting machines 19 arranged on the mounting table 18 (see FIG. 4). Each of these cutting machines 19 includes a main body 19a and a pair of cutting tools 19b that are openably and closably supported by the main body 19a. The pair of blades 19b is opened and closed by supplying compressed air from a compressor 20 (exemplified as a "fluid supply unit" according to the present invention) to a port (not shown) formed in the main body 19a.

The turntable 2 is provided with a protruding mechanism 22 for projecting the molded product 10 in the lower mold 7 (see FIGS. 1 and 4). The protruding mechanism 22 includes a tubular main body 22a and a protruding rod 22b that is reciprocally supported in the main body 22a. The protruding rod 2b is projected by supplying compressed air from the compressor 20 to a port (not shown) formed in the main body 22a. That is, the protrusion mechanism 22 and the gate cut mechanism 4 are connected to a common compressor 20 and operated by the compressor 20.

The gate cut mechanism 4 is provided with a first chute 31 for sending the resin product 11 to the outside of the turntable 2 (see FIG. 3). The first chute 31 is arranged so as to cover the mounting table 18. Further, the first chute 31 is supported by the mounting table 18 so as to be tiltable between the delivery state P1 for delivering the resin product 11 and the non-delivery state P2 for holding the resin product 11. Further, the first chute 31 includes a bottom surface portion 31a and a guide portion 31b that rises from the peripheral edge side of the bottom surface portion 31a excluding the transmission side (see FIG. 5). The upper surface of the bottom surface portion 31a is formed in a curved surface shape that is convex upward. Then, the resin product 11 separated by the gate cut mechanism 4 moves to the left and right edge sides of the bottom surface portion 31a and is collected. Further, an opening 40 is formed in the bottom surface portion 31a at a position facing each cutting machine 19.

The first chute 31 is switched between a transmission state P1 and a non-delivery state P2 by the transfer operation of the transfer mechanism 5 (see FIG. 3). Specifically, a suction portion 34 made of a magnetic material that attracts the permanent magnet 27 is provided on the rear side surface of the first chute 31. Then, when the runner grip portion 26 rises, the first chute 31 is brought into the sending state P1 by the attraction between the permanent magnet 27 and the suction portion 34, and the runner grip portion 26 in the raised state faces the outside of the turntable 2. When the magnet is displaced in the horizontal direction, the permanent magnet 27 and the suction portion 34 are released from the suction, so that the non-delivery state P2 is set.

A second chute 32 for sending the resin product 11 to the product collection unit (not shown) is provided on the outside of the turntable 2 (see FIG. 2). The second chute 32 is supported by the support so as to be tiltable between the delivery state Q1 for delivering the resin product 11 and the non-delivery state Q2 for holding the resin product 11. Further, the second chute 32 is switched between the sending state Q1 and the non-delivery state Q2 by the raising and lowering operation of the elevating body 3. Specifically, the second chute 32 is connected to the elevating body 3 by a connecting portion 36 which is a string-like body, and is set to the delivery state Q1 when the elevating body 3 rises, and when the elevating body 3 descends. It is set to the non-sending state Q2. A fixed chute 33 is interposed between the first chute 31 and the second chute 32 (see FIG. 1).

(2) Action of Vertical Injection Molding Device Next, the action of the vertical injection molding device 1 having the above configuration will be described. In the ascending state of the elevating body 3, the gate cut mechanism 4 is positioned at the predetermined position A by the rotation of the turntable 2 (see FIG. 6A). From that state, as shown in FIG. 7A, the elevating body 3 is lowered, the upper mold 8 and the lower mold 7 are molded, and the molten resin is supplied into the cavity to mold the molded product 10. At this time, the runner grip portion 26 is in the raised state, and the first shoot 31 and the second shoot 32 are in the non-delivery states P2 and Q2.

After molding the molded product 10, as shown in FIG. 7B, the elevating body 3 is raised and the lower mold 7 is positioned at a predetermined position A by the rotation of the turntable 2 (FIG. 6). See (b)). From that state, the runner gripping portion 26 is lowered, and the molded product 10 is projected from the lower mold 7 by the protruding mechanism 22, and the runner gripping portion 26 grips the runner 10a of the molded product 10. At this time, the second chute 32 is tilted to the delivery state Q2 by the connection of the connecting portion 36, and the resin product 11 on the second chute 32 is sent out toward the product recovery unit.

Next, as shown in FIG. 7 (c), the runner grip portion 26 is raised, and the molded product 10 is lifted from the lower mold 7. From that state, the gate cut mechanism 4 is positioned at the predetermined position A by the rotation of the turntable 2 (see FIG. 6A).

Next, as shown in FIG. 8A, the elevating body 3 is lowered, and the runner grip portion 26 is lowered to release the grip of the runner 10a of the molded product 10, so that the molded product 10 has a gate cut mechanism. It is set to 4. At this time, the second shoot 32 is returned to the non-delivery state Q2.

After that, as shown in FIG. 8B, the gate 10a of the molded product 10 is cut by the gate cutting mechanism 4 to separate the resin product 11 and the runner 12. The separated resin product 11 is placed on the first chute 31 (see FIG. 5), and the separated runner 12 is gripped by the runner gripping portion 26 in the lowered state.

Next, as shown in FIG. 8C, the runner grip portion 26 is raised and the runner 12 is lifted from the gate cut mechanism 4. At this time, the rear portion of the first chute 31 is lifted by the attraction between the permanent magnet 27 and the suction portion 34, and the first chute 31 is tilted to the delivery state P1 (see FIG. 3B). Then, the resin product 11 on the first chute 31 is sent out to the second chute 32 via the fixed chute 33 and placed on the second chute 32.

Next, the runner grip portion 26 is swiveled toward the outside of the turntable 2 around the vertical axis of the support column 29 (indicated by a virtual line in FIG. 3). Then, the attraction between the permanent magnet 27 and the attraction unit 34 is released, and the first chute 31 is returned to the non-delivery state P2. Then, the runner gripping portion 26 releases the gripping of the runner 12 above the runner collecting portion 24, so that the runner 12 is recovered in the runner collecting portion 24. After that, the runner grip portion 26 is swiveled in the opposite direction around the vertical axis of the support column 29 and is positioned above the gate cut mechanism 4 at the predetermined position A. After that, by repeating the above-mentioned actions, molding of the molded product 10, cutting of the gate 10a, recovery of the resin product 11, and recovery of the runner 12 are continuously performed.

(3) Effect of Example According to the vertical injection molding apparatus 1 of this embodiment, the transfer mechanism 5 for transferring the molded product 10 in the lower mold 7 and the transfer mechanism 5 are arranged on the turntable 2 and transferred by the transfer mechanism 5. A gate cutting mechanism 4 for cutting the gate 10a of the molded product 10 and separating the resin product 11 and the runner 12 is provided. As a result, the transfer mechanism 5 transfers the molded product 10 in the lower mold 7 to the gate gut mechanism 4, and the gate cut mechanism 4 cuts the gate 10a of the molded product 10 transferred by the transfer mechanism 5 to produce a resin product. It is separated into 11 and runner 12. Therefore, the gate 10a of the molded product 10 can be automatically cut. Further, the structure can be made smaller and simpler than the conventional one having a gate cut mechanism on the outside of the turntable.

Further, in the above embodiment, the transfer mechanism 5 includes a runner grip portion 26 capable of gripping the runner 12, and the runner grip portion 26 is a lower mold 7 or a gate cut located at a predetermined position A by rotation of the turntable 2. It is provided so as to be able to move up and down with respect to the mechanism 4. As a result, the molded product 10 in the lower mold 7 can be easily transferred to the gate cut mechanism 4.

Further, in this embodiment, the turntable 2 is provided with a protrusion mechanism 22, and the protrusion mechanism 22 and the gate cut mechanism 4 are operated by a common compressor 20. As a result, the gate 10a of the molded product 10 can be cut by the gate cutting mechanism 4 using the operating air of the protruding mechanism 22.

Further, in the present embodiment, the gate cut mechanism 4 is provided with a first chute 31, and the first chute 31 is tiltably supported between the sending state P1 and the non-sending state P2. , The transfer operation of the transfer mechanism 5 switches between the transmission state P1 and the non-delivery state P2. As a result, the resin product 11 can be sent out by the first chute 31 by utilizing the transfer operation of the transfer mechanism 5. Therefore, the structure can be made smaller and simpler.

Further, in the present embodiment, the transfer mechanism 5 includes a runner grip portion 26 capable of gripping the runner 12, and the runner grip portion 26 is a lower mold 7 or a gate cut located at a predetermined position A by rotation of the turntable 2. It is provided so as to be able to move up and down with respect to the mechanism 4 and to be displaceable in the horizontal direction. The runner grip portion 26 is provided with a permanent magnet 27, and the first chute 31 is provided with a suction portion 34 that attracts the permanent magnet 27. The first chute 31 is set to the sending state P1 by the attraction of the permanent magnet 27 and the suction portion 34 when the runner grip portion 26 is raised, and the runner grip portion 26 in the raised state is outside the turntable 2. When the permanent magnet 27 and the suction portion 34 are displaced in the horizontal direction, the attraction is released, so that the non-delivery state P2 is set. As a result, the transfer operation of the transfer mechanism 5 can be used more easily.

Further, in the present embodiment, a second chute 32 is provided outside the turntable 2, and the second chute 32 is tiltably supported between the sending state Q1 and the non-sending state Q2. At the same time, it is switched between the sending state Q1 and the non-delivery state Q2 by the raising and lowering operation of the elevating body 3. As a result, the resin product 11 can be sent out by the second chute 32 by utilizing the elevating operation of the elevating body 3.

Further, in the present embodiment, the second chute 32 is connected to the elevating body 3 by the connecting portion 36, and is set to the sending state Q1 when the elevating body 3 rises, and is not delivered when the elevating body 3 descends. The state is Q2. As a result, the elevating operation of the elevating body can be used more easily.

It should be noted that the present invention is not limited to the above-mentioned examples, and various modifications can be made within the scope of the present invention according to the purpose and application. That is, in the above embodiment, the protrusion mechanism 22 and the gate cut mechanism 4 operated by the common compressor 20 have been illustrated, but the present invention is not limited to this, and for example, the protrusion mechanism and the gate cut mechanism operated by different operating sources. May be.

Further, in the above embodiment, the protrusion mechanism 22 and the gate cut mechanism 4 operated by the air supply from the compressor 20 (fluid supply unit) have been exemplified, but the present invention is not limited to this, and for example, the oil pump (fluid supply unit). It may be a protrusion mechanism and a gate cut mechanism that are operated by supplying oil from.

Further, in the above embodiment, the embodiment including the chutes 31 and 32 for sending out the resin product 11 has been illustrated, but the present invention is not limited to this, and for example, the resin product 11 is provided by a robot hand without the chutes 31 and 32. It may be transferred.

Further, in the above embodiment, the embodiment in which two chutes 31 and 32 are provided for transporting the resin product 11 to the product recovery unit is illustrated, but the present invention is not limited to this, and for example, three or more chutes may be provided or one. It may be equipped with one chute.

Further, in the above embodiment, the chutes 31 and 32 that tilt by utilizing the movements of the transfer mechanism 5 and the elevating body 3 have been illustrated, but the present invention is not limited to this, and for example, the chutes that tilt by a dedicated operating source may be used. ..

Further, in the above embodiment, the chute 31 that tilts by attracting and releasing the permanent magnet 27 and the attracting portion 34 is illustrated, but the present invention is not limited to this, and for example, as shown in FIG. 9, the locking portion 38 and the covering portion 38 are covered. The chute may be tilted by locking and releasing from the locking portion 39.

Further, in the above embodiment, the embodiment in which the permanent magnet 27 is provided on the runner gripping portion 26 and the suction portion 34 is provided on the chute 31 is illustrated, but the present invention is not limited to this, and for example, the chute 31 is provided with the suction portion 34 and the runner is provided. Permanent magnets 27 may be provided on the grip portion 26.

Further, in the above embodiment, the turntable 2 that rotates in the forward and reverse directions has been illustrated, but the present invention is not limited to this, and for example, the turntable 2 that rotates in only one direction may be used.

The above examples are for illustration purposes only and are not to be construed as limiting the invention. Although the present invention has been described with reference to typical embodiments, the language used in the description and illustration of the invention is understood to be descriptive and exemplary rather than restrictive. As described in detail here, modifications can be made within the scope of the appended claims without departing from the scope or spirit of the invention in that form. Although specific structures, materials and examples have been referred to herein in detail of the invention, it is not intended to limit the invention to the disclosures herein, but rather the invention is claimed in the accompanying claims. It shall cover all functionally equivalent structures, methods and uses within the scope.

The present invention is not limited to the embodiments detailed above, and various modifications or modifications can be made within the scope of the claims of the present invention.

The present invention is widely used as a technique for obtaining a resin product by cutting the gate of an injection-molded molded product.

1; vertical injection molding device, 2; turntable, 3; elevating body, 4; gate cut mechanism, 5; transfer mechanism, 7; lower mold, 8; upper mold, 10; molded product, 10a; gate, 11; Resin product, 12; runner, 20; compressor, 22; protrusion mechanism, 31; first shoot, 32; second shoot, P1, Q1; sending state, P2, Q2; non-sending state.

Claims (5)

A product provided with a rotatable turntable and an elevating body that can be raised and lowered with respect to the turntable, and is molded between a lower mold provided on the turntable and an upper mold provided on the elevating body. It is a vertical injection molding device that molds
A transfer mechanism for transferring the molded product in the lower mold, and
Wherein disposed at a position spaced a Oite the lower die on the turntable, and a gate cutting mechanism for separating the resin product and the runner by cutting the gate of the transfer the molded article by the transfer mechanism,
The transfer mechanism transfers the molded product in the lower mold to the gate gut mechanism, and the gate cut mechanism cuts the gate of the molded product transferred by the transfer mechanism to cut the resin product and the runner. A vertical injection molding device characterized by being separated into and. The turntable is provided with a protruding mechanism for projecting the molded product in the lower mold.
The vertical injection molding apparatus according to claim 1, wherein the protruding mechanism and the gate cutting mechanism are operated by a common fluid supply unit. The gate cut mechanism is provided with a first chute for sending the resin product to the outside of the turntable.
The first chute is tiltably supported between a delivery state in which the resin product is sent out and a non-delivery state in which the resin product is held, and the delivery state and the non-delivery state are supported by the transfer operation of the transfer mechanism. The vertical injection molding apparatus according to claim 1 or 2, which can be switched to a state. A second chute for sending the resin product to the product collection unit is provided on the outside of the turntable.
The second chute is tiltably supported between a delivery state in which the resin product is delivered and a non-delivery state in which the resin product is held, and the delivery state and the non-delivery state are caused by the elevating operation of the elevating body. The vertical injection molding apparatus according to any one of claims 1 to 3, which can be switched to a state. A manufacturing how the resin product using a vertical type injection molding apparatus according to any one of claims 1 to 4,
A transfer step of transferring the molded product in the lower mold to the gate gut mechanism by the transfer mechanism, and
A method for producing a resin product, which comprises a separation step of cutting the gate of the molded product transferred by the transfer mechanism by the gate cut mechanism and separating the resin product and the runner.

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