JP5183968B2 - Injection molding equipment - Google Patents

Description

  The present invention belongs to the technical field of an injection molding apparatus for injection molding a hollow body such as a front lamp and a side turn lamp mounted on a vehicle.

  In general, a hollow molded body, for example, a side turn lamp, is configured such that at least the mold surfaces are moved away from each other in a facing direction, and a mold surface for molding a molded product is formed. In the case of forming using an injection molding apparatus having first and second molds and injection means for injection molding a molded product, the lens part and the housing part are molded in the primary injection, and these lenses The first and second molds each holding the part and the housing part are again brought into contact with each other to perform secondary injection so that the lens part and the housing part are integrated into a side turn lamp. A so-called hollow body molding method has been proposed. By the way, in the side turn lamp, a light source and a terminal member connected to the light source are incorporated on the housing part side before the lens part and the housing part are integrated. In the case of molding a turn lamp, a light source and a terminal member are incorporated into the housing part held by one mold between the primary injection process and the secondary injection process. If you do this manually, the workability will be significantly reduced.

As an improvement measure, an operation device such as a remote operation device (manipulator, magic hand) corresponding to the operation device of the present invention is provided in the vicinity of the first and second molds. It is advisable to automatically incorporate the light source and terminal member into the housing part in time with the operation of the second mold, and to take out the side turn lamp from the mold after the secondary injection is completed. Has been.
Special Publication No. WO2006 / 075694

  However, when some operation is performed on the molded body accommodated in the mold by the remote control device, particularly in the case where a small part such as a valve or a terminal member is incorporated, the housing portion is to be incorporated. The built-in part also has a small shape. For this reason, in the configuration in which the remote control device is provided in the vicinity of the mold as in the conventional one, the remote control device itself is increased in size and the positioning of the remote control device with respect to the mold is performed accurately. There is a problem that it is difficult to cause poor assembly (operation failure) and the side turn lamp cannot be molded with a high yield. In addition, in cases where complex movement is required for the molded body held in the mold, not only the remote control device has to be made larger, but also the accuracy is significantly reduced even with slight positional deviation. As a result, there is a problem that the operation of the remote control device is limited, and there is a problem to be solved by the present invention.

The present invention has been created in view of the above-described circumstances and has been created for the purpose of solving these problems. The invention according to claim 1 is characterized in that at least the separation and movement of the mold surfaces in the opposing direction is relative. In an injection molding apparatus comprising a first mold and a second mold on which a mold surface for molding a molded body is formed, and an injection means for injection molding the molded body, An actuating device for performing an arbitrary operation on the molded body held by either the first or second mold is provided on the working position facing the one mold and the first or second mold. When configured to be movable to a non-interacting position that does not interfere, one of the first and second molds is provided with a pair of guide bodies for movably supporting the operating device. In the state where the one mold is sandwiched between left and right or up and down, Position beyond through, and first is die matching, is an injection molding apparatus, characterized in that provided so as not to interfere with the second mold.

With the invention of claim 1, the actuation of the actuating device, reliably, and it is possible to produce a good yield accurate high reliability it is possible to be performed molded body, moreover, it can contribute to cost reduction Rudake not, without actuating device gets in the way, further, the first, can be achieved a smooth molding process in accordance with the movement of the second mold in the molding process of the molded body.

Next, embodiments of the present invention will be described with reference to the drawings.
In the drawings, reference numerals 1 and 2 denote first and second molds used when molding a hollow body (for example, a side turn lamp). The mold 1 is a fixed mold that is fixed to a fixed gantry (not shown), but the second mold 2 is mounted on a movable gantry (not shown) and is displaced in the left-right direction with respect to the first mold 1; It is configured as a movable type that can freely move in the direction of separation. And in the 1st, 2nd metal mold | die 1 and 2, in order to shape | mold a housing part and a lens part as a primary molded object, respectively, the 1st concave mold surface 1a, the 1st convex mold surface 1b, and the 2nd convex mold The surface 2b and the second concave surface 2a are formed adjacent to each other, the first concave surface 1a and the second convex surface 2b, the first convex surface 1b and the second concave surface 2a are butted against each other, A pair of primary molded bodies (a housing part and a lens part) are set to be molded between these abutting parts by injecting a resin material (primary injection) by an injection means (not shown). And the direction which separates the 2nd metal mold | die 2 with respect to the 1st metal mold | die 1 in the state which hold | maintained said pair of primary molded object to the concave mold surfaces 1a and 2a of the 1st, 2nd metal mold | die 1 and 2, respectively. In addition, the second mold 2 is moved in the left-right direction so that the primary molded bodies are in a positional relationship facing each other, and the first and second molds 1 and 2 are again brought into contact with each other, and the injection means A hollow molded body (secondary molded body, side turn lamp) is formed by injecting a resin material (secondary injection) by the above-described method, which is a conventional hollow body molding method. It is based on.

As described above, the first and second molds 1 are configured to be fixed to a fixed gantry (not shown) or a movable gantry, and a base body 3 is fixed to the fixed or movable gantry. The base body 3 is configured such that rectangular first and second mold main body portions 1c and 2c constituting the first and second molds 1 and 2 are fixed. The first mold body 1c, which is a fixed mold, has the first concave mold surface 1a and the first convex mold surface 1b adjacent to each other in the horizontal direction (left-right direction) on the facing surface facing the second mold 2 side. It is arranged in a shape.
And in this Embodiment, as FIG. 1 shows , the actuator 4 of this invention is provided in the 1st metal mold | die 1 which is a fixed mold | type, and this book is attached to the right-and-left both sides of the metal mold | die main-body part 1c. A pair of left and right guide rails 5 and 6 corresponding to the guide body of the invention are formed extending downward.

The left guide rail 5 includes a vertically long base plate 5a, and one side surface of the upper end of the base plate 5a is fixed to the left side surface of the first mold body 1c. A guide piece 5c having a guide groove 5b formed by a long groove extending in the vertical direction is integrally provided on the second mold facing portion of 5a facing the second mold 2 side. Furthermore, upper and lower support pieces 5d and 5e orthogonal to the base plate 5a are integrally provided on the upper and lower end surfaces of the base plate 5a, and the lower support pieces 5e are fixed to a fixed base. A guide pole 5f is erected between the upper and lower support pieces 5d and 5e so as to be adjacent to the guide groove 5b. The guide pole 5f is a screw having an outer peripheral surface provided with a screw groove. It is composed of shafts. The upper support piece 5d is provided with a drive motor 5g, and an output shaft (not shown) of the drive motor 5g and a guide pole 5f are linked to each other. It is set to rotate in the direction of rotation.
On the other hand, the right guide rail 6 is provided integrally with a fixed piece 6a fixed to the right side surface of the first mold main body 1c and a facing portion facing the second mold 2 side of the fixed piece 6a. The guide piece 5c of the guide rail 5 is constituted by a guide piece 6c having a line-symmetric guide groove 6b, and the lower end portion of the guide body 6b is set so as to be fixed to a fixed base.
As is apparent from FIG. 1, the pair of left and right guide rails 5 and 6 are located at the positions of the mold surfaces 1a and 1b formed on the first mold 1 with the first mold 1 sandwiched between the left and right. It is attached to the left and right sides of the first mold 1 so as to pass through from the bottom to the top and not interfere with the mold alignment of the first and second molds 1, 2, and the operation device with high accuracy. Although the set of 4 can be made, it is configured so as not to disturb the injection process of the molded body.

  The operating device 4 is moved and guided by the left and right guide rails 5 and 6, and the support box 7 constituting the operating device 4 includes a pair of left and right leg pieces 7a and 7b and the leg pieces 7a, 7b is formed in a U-shape in plan view, and the left and right guide rails 5 are provided at the distal end portions of the leg pieces 7a and 7b, that is, at the distal end portion on the first mold 1 side. , 6 are respectively provided with guide receiving grooves 7d which are fitted into the respective guide grooves 5b, 6b and receive movement guidance in the vertical direction. Further, the left leg piece 7a is formed with a protruding protrusion 7e toward the left side in a state adjacent to the guide receiving groove 7d, and the guide provided on the guide rail 5 is provided on the moving protrusion 7e. A screw hole 7f in which a screw groove that is screwed into the pole 5f is formed is formed in a vertically penetrating manner.

  The connecting piece 7c of the support box 7 supports a plurality of base ends 8a (three in the present embodiment) of the operating arm 8 functioning as a so-called magic hand. Is set so as to perform a preset operation, which will be described later, with reference to the support portion with the connecting piece 7c.

  The support box 7 provided with these operating arms 8 fits the guide receiving grooves 7d of the left and right leg pieces 7a, 7b into the guide grooves 5b, 6b of the left and right guide rails 5, 6 and moves the left leg piece 7a. The screw hole 7f of the projecting piece 7e is set so as to be incorporated in the left and right guide rails 5 and 6 in a state where the screw hole 7f is screwed into a guide pole 5f provided in the left guide rail 5. In this state, the support box 7 is prevented from coming off from the left and right guide rails 5 and 6, and the movement protrusion 7e is restricted from rotating integrally with the guide pole 5f (relatively rotatable). It is set to fit outside. Then, by rotating the drive motor 5g forward or backward to rotate the guide pole 5f in the corresponding direction, the moving protrusion 7e screwed into the guide pole 5f is forced along the guide pole 5f. The support bracket 7 (actuating device 4) is set so as to move along the left and right guide rails 5 and 6 along with the relative movement in the vertical direction. Between the working position facing the mold surfaces 1a and 1b of the mold 1 and the non-working position located below the first mold 1 and not interfering with the first and second molds 1 and 2. Is set to displace.

Next, the operation state of the first and second molds and the operating device 4 will be described assuming a step of forming a side turn lamp as the hollow body using the first and second molds 1 and 2.
First, the first and second molds 1, 2 are in a state where the second convex surface 2b is opposed to the first concave surface 1a and the second concave surface 2a is opposed to the first convex surface 1b. , Move the second mold 2 close to the first mold 1, and mold the primary molded body (housing part and lens part) with the first and second molds 1 and 2 butting each other, The housing part, which is a primary molded body, is held on the first mold concave mold surface 1 a, the lens part is held on the second mold concave mold surface 2 a, and the second mold 2 is separated from the first mold 1.
On the other hand, in the step of molding the primary molded body by the first and second molds 1 and 2, the operating device 4 (support box 7) has the first and second molds 1 and 2, as shown in FIGS. 2 is set in a non-operating position where it does not interfere with both, and is set in an operation standby state. In this non-operation position (operation standby state), a terminal member is connected to the tip 8b of the operating arm 8. Hold the valve. Then, the drive motor 5g is rotationally driven for a predetermined time in accordance with the timing when the first and second molds 1 and 2 are separated from each other, and the guide pole 5f is rotated in a predetermined direction. As shown in FIGS. 5 and 6, the moving protrusion 7 e of the support box 7 rotates relative to the guide pole 5 f, and the operating device 4 (support box 7) moves upward to the working position facing the first mold 1. Moving. In this state, when the operating arm 8 performs a predetermined operation, the terminal member and the valve held by the distal end portion 8b are inserted and incorporated into the housing portion held by the first mold concave surface 1a, and then the drive motor By rotating and driving 5g in the reverse direction for a predetermined time and rotating the guide pole 5f in the opposite direction, the operating device 4 moves downward from the operating position facing the first mold 1 to the non-operating position. Is set.

  Subsequently, the second mold 2 is moved in the left-right direction so that the housing part and the lens part held between the first and second concave mold surfaces 1a and 2a face each other, and then the second mold 2 is moved so as to be close to the first mold 1, and the housing portion and the lens portion are brought into contact with each other. By performing the second injection in this state, a side turn lamp in which the housing portion and the lens portion are integrated is molded, and by separating the second mold 2 from the first mold 1, the molded side The turn lamp is held in the first mold 1. In this state, the electric motor 5g of the actuating device 4 is again driven to position the actuating device 4 in the operating position, and the tip end portion 8b of the actuating arm 8 is actuated for a predetermined time, whereby the molded side turn lamp is changed to the first. It is set so that the die 1 is removed from the die 1 and taken out to a predetermined stock stand (not shown). And after completion | finish of taking-out operation | movement, the electric motor 5g is driven, the actuator 4 is located in a non-operation position, and the 2nd metal mold | die 2 is made into 2nd convex-shaped surface 2b, 1st with respect to the 1st concave-shaped surface 1a after that. By moving the second concave mold surface 2a to a position facing the one convex mold surface 1b, and then repeating the above steps, the side turn lamps are sequentially molded.

  In the present embodiment configured as described, when the side turn lamp is molded using the first and second molds 1 and 2, the operating arm 8 of the operating device 4 is variously formed on the molded body in the molding process. The operation arm 8 is accommodated in a support box 7, and the support box 7 is configured to be moved and guided by left and right guide rails 5 and 6 provided in the first mold 1. Has been. As a result, it becomes easy to accurately position the operating device 4 with respect to the first mold 1, that is, to position each operating arm 8 disposed in the support box 7 with respect to the first mold 1. The operation performed by the actuator 4 (actuating arm 8) with respect to the molded body can be performed reliably and accurately, and a highly reliable molded body can be produced with a high yield. It can also contribute to the decline. Furthermore, in this case, since the actuating device 4 can be provided in the state close to the first mold 1, not only can the actuating arm 8 (actuating device 4) be reduced in weight and size, but also in the molded body. In contrast, even if complex movement is required, it is possible to cope with the need to increase the molding accuracy of the molded body, as well as to produce a molded body with high performance and complex shape. .

  As described above, in the case where the present invention is implemented, the operating device 4 is disposed in the state of being close to the first mold 1, and the operating device 4 includes the first and second molds 1. 2, the actuator 4 is displaced to the working position facing the first mold 1 only when performing the function as the actuator 4 in accordance with the operation state of 2, so that the actuator 4 does not get in the way, A smooth molding process can be realized in accordance with the movement of the first and second molds 1 and 2 in the molding process.

Of course, the present invention is not limited to the above-described embodiment, and may be the second embodiment shown in FIGS.
In the second embodiment, the basic configuration of the first and second molds 1 and 2 is the same as that of the first embodiment, and the description is omitted by attaching the same reference numerals. The guide body 9 of the second embodiment is provided in the first mold 1 which is a fixed mold as in the first embodiment, but the guide bodies 9 are configured in a pair of upper and lower sides. It is formed in a state extending from the upper and lower edges of the mold body 1c to one side in the left-right direction. Then, the operating device 10 guided movably by the guide body 9 is configured to move in the left-right direction along the guide body 9, the working position facing the first mold 1, and the first mold 1. The first and second molds 1 and 2 are displaced so as to be displaced to one side of the first and second molds 1 and 2 so as to be displaced to a non-operating position. In addition, the movement structure by the guide body 9 of the actuator 10 was formed in the guide box 9a formed in the guide body 9 and the support box 11 which comprises the actuator 10 similarly to said 1st embodiment. Although it is configured by sliding movement with the guide groove 11a , the drive device that slides the support box 11 can use the same screw shaft configuration as in the first embodiment, but uses a general-purpose configuration separately. It is also possible to omit the illustration in this embodiment.
And even in this case, while the primary or secondary injection is performed by the first and second molds 1 and 2, the first and second molds 1 and 2 do not interfere with each other at the non-operation position. When the second mold 2 is separated from the first mold 1, the actuating device 10 is moved to the working position when the timing is required, and the actuating arm 12 mounted on the support box 11 performs a predetermined work. Thus, it is set to perform a predetermined operation on the molded body molded in the first mold 1, and even in this case, the shape of the operating arm 8 mounted on the operating device 10 can be made compact, The operation by the actuator 10 can be performed accurately and accurately.
As is apparent from FIG. 7, the pair of upper and lower guide bodies 9 are located on the mold surfaces 1 a and 1 b formed on the first mold 1 with the first mold 1 sandwiched between the upper and lower sides. Is attached to the upper and lower side portions of the first mold 1 so as not to interfere with the alignment of the first and second molds 1 and 2 with high accuracy. However, it is configured not to interfere with the injection process of the molded body.

In each of the above embodiments, the operating arm of the operating device is configured to operate only on the molded body held by the first mold provided with the operating device, but the operating arm is provided by the operating device. It can also be set as the structure which operate | moves with respect to the molded object hold | maintained not only to the 1st metal mold | die currently held but to the 2nd metal mold | die.
In addition, the operating device is not limited to the magic hand as the device mounted on the support box. For example, a film forming device for forming a molded body may be used. In the molding process, an apparatus necessary for performing some operation on the molded body can be mounted on the support box.

It is a perspective view of an injection molding device in the state where an actuator is located in a non-action position. It is a perspective view of an injection molding device in the state where an actuator is located in a non-action position. It is a perspective view of an injection molding device in the state where an actuator is located in an operation position. It is a principal part expansion perspective view of an injection molding device in the state where an actuator is located in an operation position. It is a perspective view of an injection molding device in the state where an actuator is located in an operation position. It is a principal part expansion perspective view of an injection molding device in the state where an actuator is located in an operation position. FIGS. 7A and 7B are perspective views of the injection molding apparatus in a state where the operating device in the second embodiment is located at the non-operating position. FIGS. 8A and 8B are perspective views of the injection molding apparatus in a state where the operating device in the second embodiment is located at the operating position. It is a principal part expansion perspective view of an injection molding device in the state where the actuator in a 2nd embodiment is located in an operation position.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st metal mold | die 1a 1st concave mold surface 2 2nd metal mold | die 3 Base body 4 Actuator 5 Left guide rail 5b Guide groove 5f Guide pole 6 Right guide rail 7 Support box 7d Guide receiving groove 7e Projection piece 7f Screw hole 8 Actuating arm

Claims (1)

The first and second molds are formed such that at least the mold surfaces are separated and moved in the opposing direction relative to each other, and mold surfaces for molding the molded body are formed, and the molded body is injected. An injection molding apparatus comprising an injection means for molding, wherein the one mold is an actuating device for performing an arbitrary operation on the molded body held by the first or second mold. When the actuator is configured to be movable between a working position opposite to the first mold and a non-working position that does not interfere with the first and second molds, the operating device is movably supported by either the first or second mold. A pair of guide bodies is provided, and the pair of guide bodies passes through the mold surface position of the mold in a state where the one mold is sandwiched between left and right or up and down, and the first is matched. An injection molding apparatus provided so as not to interfere with the second mold.

Images