JP5253193B2 - Molding device for plastic injection molding machine - Google Patents

Description

  The present invention relates to a molded product take-out device for a plastic injection molding machine, and in particular, allows a molded product to be quickly and reliably taken out with an inexpensive structure.

  FIGS. 15A to 15D show a process for taking out the molded product P, which includes a plastic injection molding machine 1 and a molded product take-out device 2.

  The plastic injection molding machine 1 has a fixed mold 3, a movable mold 4 and an injection machine 5. As shown in FIG. 15 (a), the molds 3 and 4 are anastomosed, The material is injected into the molds 3 and 4 by the injection machine 5, and after molding, the movable mold 4 is separated from the fixed mold 3 as shown in FIG. The molded product P is pushed out by the lockout pin 6. Note that Pa is a remaining material (sprue) adhering to the molded product P.

  The molded product take-out device 2 is movable in the directions of arrows e and f via a pivot shaft 9 at a lower end of the movable body 8 that can move in the vertical directions a and b and the horizontal directions c and d. A movable plate 11 that is pivotally supported and can be changed between a vertical posture (see FIG. 15A) and a horizontal posture (see FIG. 15D) by an air cylinder 10, and a suction attached to the movable plate 11. Part 12.

  Conventionally, the suction portion 12 has a suction member 15 having a plurality of suction cups 14 that form a suction section K corresponding to the molded product P, and one end of the suction member 15 is fixed to the movable plate 11. ing.

  The procedure for taking out the molded product P will be described. As shown in FIG. 15A, when the plastic injection molding machine 1 performs molding, the suction member 15 of the molded product taking-out apparatus 2 is placed above the plastic injection molding machine 1 in a vertical posture. Wait.

  Next, as shown in FIG. 15 (b), after the movable mold 4 is separated from the fixed mold 3, the suction member 15 is lowered b and inserted between the molds 3 and 4, and then the forward c Each suction cup 14 is adsorbed to the molded product P.

  Thereafter, as shown in FIG. 15C, the suction member 15 is moved backward d and raised a in the reverse procedure to the above and returned to the standby position, and the suction member 15 is rotated in the direction of arrow f by the air cylinder 10. The molded product P sucked by the suction cup 14 is brought into a horizontal state by causing the horizontal posture.

  Subsequently, as shown in FIG. 15 (d), the suction member 15 is moved horizontally c and d, then lowered b, the suction by the suction cup 14 is released, and the molded product P is placed on the belt conveyor 16 or the like. Deliver. In addition, there exists what was described in patent document 1 as a related technique.

JP-A-6-198687

  In the above-described conventional configuration, the shape of the molded product P molded by the plastic injection molding machine 1 varies in size, and the number of molded products P molded at one time varies from one to a plurality. It is necessary to adjust the shape of the suction part 12 for each molded product P, and it takes time and effort to set up the product, which is troublesome and increases the cost.

  As shown in FIG. 15 (a), since the distance H from the center of the suction section K to the pivot shaft 9 is relatively large, as shown in FIG. When the suction member 15 is rotated in the direction of the arrow f to be in a horizontal posture, an excessive centrifugal force is applied to the molded product P sucked by the suction cup 14, and the suction force is lost to the centrifugal force so that the molded product P There were many accidents that caused fall accidents.

  An object of the present invention is to provide a molded product take-out device for a plastic injection molding machine that can quickly and reliably take out a molded product with an inexpensive structure in view of the above-mentioned conventional drawbacks.

The configuration for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The invention according to claim 1 is a movable body 8 movable in the vertical direction a, b and the horizontal direction c, d. A movable plate 11 pivotally supported at the lower end of the movable body 8 via a pivot shaft 9 and capable of changing its posture between a vertical posture and a horizontal posture, and a suction portion 12 attached to the movable plate 11 The suction part 12 is provided with a plurality of suction cups 14 that form a suction region K corresponding to the molded product P, and the fixed mold 3 and the movable mold 4 of the plastic injection molding machine 1 are provided. After the molded product P is molded, the moving body 8 is moved downward to insert the suction part 12 in the vertical position between the molds 3 and 4 separated from each other. P is sucked, the moving body 8 is moved upward, and the suction portion 12 is rotated around the pivot shaft 9 to be in a horizontal posture. In the molded product take-out device 2 of the plastic injection molding machine 1 in which the molded product P sucked by the above is made horizontal and then the movable body 8 is moved horizontally to move the sucked molded product P to a predetermined position. as shown in, the suction unit 12 is fastened to the movable plate 11, a suction unit body 19 rotated about the pivot shaft 9 through the movable plate 11, the pivot shaft 9 and a multiple arm 20 arranged symmetrically around the the front outer peripheral edge near the suction unit body 19 at predetermined intervals a plurality of screw holes 21 are formed, suitable among the respective screw holes 21 a by fastening the base end portion 20a of the arm 20 by fastening member 22 is screwed into the screw hole 21, the plurality of arms 20 is extended from the suction unit body 19 in the radial direction, the these arms 20 Sucker 14 directly Other indirectly attached via a joint member, and wherein as pivot shaft 9 is located above the site Ka in the radial direction intermediate portion of the suction area K of the suction unit 12 (of (a) see FIG. 1) The proximal end portion 20a is fixed to the suction portion main body 19 with a fastening tool 22, and the plurality of arms 20 extending radially from the proximal end portion 20a are centered on the proximal end portion 20a. A configuration is adopted in which the inside of the surface area 19 is fixed so that the radiation angle can be changed, and a scale 19 a indicating the radiation angle change position of the arm 20 in the surface area is displayed on the suction part main body 19. .

According to the second aspect of the present invention, as shown in FIG. 4, in the first aspect of the present invention, an annular air passage main body 36 a and the air passage main body 36 a extend outwardly in the suction portion main body 19. A suction passage 36 comprising a plurality of branch ventilation passages 36b opened on the outer peripheral surface of the suction portion main body 19 is formed, and a switching valve 37 for opening and closing each branch ventilation passage 36b is provided in the suction portion main body 19, each of which is provided. An appropriate one of the branch air passages 36b and each of the suction cups 14 are communicated with each other by a flexible air pipe 38a, and a suction passage 36c extending from the air passage main body 36a and opening on the outer peripheral surface of the suction portion main body 19 is formed. The suction pipe 38b is connected to the suction path 36c, and the suction pipe 38b sucks air from the suction cups 14 through the suction path 36c, the ventilation path 36, and the ventilation pipe 38a. It is intended to adopt.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a long hole-shaped guide hole 26 is formed in the central portion of the arm 20 along the longitudinal direction of the arm 20. A configuration in which the suction cup 14 is movably locked is adopted.

According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the joint member comprises a rod 42 as shown in FIG. A long hole-shaped guide hole 26 formed along the longitudinal direction is movably locked via a locking tool 43, and the suction cup 14 is movable in the long hole-shaped guide holes 26 formed at both ends of the rod 42. A structure that is locked is adopted.

The invention according to claim 5 employs a configuration in which a scale 27 is displayed along the guide hole 26 in the invention according to claim 3 or 4 .

The invention according to claim 6 is the invention according to claim 1 or 2 , wherein the joint member comprises a universal joint 45 and the arm 20 is divided into two sets, as shown in FIG. The suction cup 14 is locked to the other arm 20 through the universal joint 45, and the suction cup 14 is locked to the other arm 20.

According to a seventh aspect of the present invention, in the first or second aspect of the present invention, as shown in FIG. 14, the joint member comprises a universal joint 45, and the arm 20 is divided into two sets. A configuration in which the suction cup 14 is engaged with the arm 20 via the universal joint 45 is employed.

According to the first aspect of the present invention, since the arm 20 is extended in the radial direction from the suction portion main body 19 with the suction portion main body 19 as a reference, the arm 20 is directly or indirectly via a joint member. The suction region K formed by the plurality of attached suction cups 14 can be positioned as desired according to the shape and number of the molded product P, and the time required for the setup can be greatly shortened compared to the conventional case. It is ideal for high-mix low-volume production.

  In addition, in accordance with the shape and number of the molded product P, the parts including the suction portion main body 19, the arm 20, the joint member, and the suction cup 14 are appropriately combined. For each new molded product P as in the past, Compared with the case where the suction part 12 is remade, the number of parts is small, so the production cost is low.

Furthermore, by setting the pivot shaft 9 at a site of a distance Ka from the pivot shaft 9 which is the rotation center of the suction section main body 19 to the radial intermediate portion of the suction area K formed by the plurality of suction cups 14. When the suction part main body 19 sucking the molded product P through the suction cup 14 is rotated to change from the vertical posture to the horizontal posture, the centrifugal force applied to the sucked molded product P is applied to the pivot shaft. 9 to be diminished evenly distributed radially about the, it is possible to reduce the influence of centrifugal force, reliably prevent fall accidents caused by the centrifugal force of the molded article P to be sucked into the suction unit body 19 be able to.

Furthermore , according to the present invention , the plurality of arms 20 extending radially from the base end portion 20a to the suction portion main body 19 can change the radiation angle within the surface area of the suction portion main body 19 around the base end portion 20a. Since the scale 19a indicating the radiation angle change position within the surface area of the arm 20 is displayed on the suction unit main body 19 while being fixed, the shape and size of the molded product P sucked by the arm 20 are displayed. In addition, the radiation angle change position within the surface area of the suction part main body 19 of the arm 20 can be recorded, and then within the surface area of the suction part main body 19 of the arm 20 according to the shape and size of the molded product P. In the case of changing the radiation angle change position at, it is possible to refer to the radiation angle of the arm 20 recorded in the past, whereby the setup for taking out a new molded product P can be efficiently performed. .

According to the second aspect of the present invention, since the flexible ventilation pipe 38a that connects the branch ventilation path 36b of the suction portion main body 19 and each suction cup 14 is freely deformable, the arm 20 is independent of the ventilation pipe 38a. And the position of the suction cup 14 can be adjusted freely.

  Further, in the case where a large number of molded products P are molded by the molds 3 and 4 at a time, any molded product P cannot be sucked by the suction cup 14 and a defective cavity is generated. By closing the branch air passage 36b communicating with the suction cup 14 with the switching valve 37, it is possible to reliably prevent the occurrence of defective cavities.

According to the third aspect of the present invention, the position of the suction cup 14 can be quickly and easily adjusted along the guide hole 26 of the arm 20 in accordance with the shape and number of the molded product P.

According to the fourth aspect of the present invention, a large number of suction cups 14 can be arranged at desired positions along the guide holes 26 of the arm 20 and the rod 42.

According to the fifth aspect of the present invention, each suction cup 14 can be accurately locked at a desired position by the scale 27 formed along the guide hole 26 of the arm 20 and / or the rod 42.

According to the sixth aspect of the present invention, even if the molded product P has a step, the suction cup 14 locked to the one arm 20 via the universal joint 45 and the suction cup locked to the other arm 20. 14 can be reliably sucked.

According to the seventh aspect of the present invention, even a molded product P having an inclined surface or a spherical surface can be reliably sucked by the suction cups 14 locked to the arms 20 of both sets via the universal joint 45. .

(A)-(d) is a schematic explanatory drawing which shows the removal process of the molded product by the molded product extraction apparatus which is the 1st Embodiment of this invention. (A) is a front view of the molded product take-out apparatus, and (b) is a side view of the apparatus. It is a front view of the suction part main body which mainly shows the principal part. It is a front view of the attraction | suction part main body which mainly shows the other principal part. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. (A) is a CC arrow view of FIG. 4, (b) is a DD arrow view of FIG. 4, (c) is a perspective view of the same switching valve. It is a longitudinal cross-sectional view of the same suction cup. It is a front view which shows the 1st, 2nd modification. It is a front view which shows the 3rd, 4th modification. It is a front view which shows the 5th modification. (A) is a front view of the molded article extraction apparatus which is the 2nd Embodiment of this invention, (b) is an EE arrow line view. It is a side view of the molded article extraction apparatus which is the 3rd Embodiment of this invention. It is a side view of the molded article extraction apparatus which is the 4th Embodiment of this invention. (A)-(d) is a schematic explanatory drawing which shows the removal process of the molded article by the conventional molded article extraction apparatus.

  FIGS. 1-8 shows the molded product taking-out apparatus 2 which is the 1st Embodiment of this invention, Comprising: FIGS. 1 (a)-(d) is schematic description which shows the taking-out process of the molded product P. FIG. Fig. 2 (a) is a front view of the molded product take-out device 2, Fig. 2 (b) is a side view of the device 2, and Fig. 3 is a suction mainly for explaining a state where the arm is attached in the radial direction. 4 is a front view of the suction unit main body for mainly explaining the suction circuit, FIG. 5 is a view taken along the line AA in FIG. 4, and FIG. 6 is a view taken along the line BB in FIG. 7 (a) is a view taken along the line CC in FIG. 4, FIG. 7 (b) is a view taken along the line DD in FIG. 4, FIG. 7 (c) is a perspective view of the switching valve, and FIG. It is a longitudinal cross-sectional view of the suction cup 14. The same parts as those shown in FIG.

As shown in FIGS. 1 to 6, the suction part 12 includes a rectangular block-shaped metal suction part main body 19 fixed to the movable plate 11 with screws 18 and a plurality of (four in this embodiment) arms. 20, and a plurality of (eight in this embodiment) screw holes 21 are formed in the vicinity of the front outer peripheral edge of the suction portion main body 19 at a predetermined interval. In this first embodiment, the suction portion By fixing the base end portion of each arm 20 with a fixing tool 22 such as a screw that is screwed into each screw hole 21 positioned at the four corners of the main body 19, each arm 20 is radiated from the four corners of the suction portion main body 19. The suction cup 14 is directly attached to each arm 20. The suction unit 12 is attached to the suction unit body 19 so as to rotated about the pivot shaft 9 through the movable plate 11, and part Ka of the radial intermediate portion of the suction area K of the suction unit 12 (FIG. 1 (A)), the pivot shaft 9 is positioned. In this embodiment, the movable plate 11 and the suction part main body 19 are formed separately, but the movable body 11 may be formed integrally with the suction part main body 19. As shown in FIG. 3, a base end portion 20a is fastened to the suction portion main body 19 by a fastening tool 22, and an arm 20 extending radially from the base end portion 20a has the suction portion centered on the base end portion 20a. The surface 19 of the main body 19 is fixed so that the radiation angle can be changed, and a scale 19 a indicating the radiation angle change position in the surface area of the arm 20 is displayed on the suction portion main body 19. A pointer 20b protrudes from the proximal end portion of the arm 20, and the angle indicated by the scale 19a of the pointer 20b indicates a radial angle extending radially from the suction portion main body 19 of the arm 20, and the suction of the arm 20 indicated by a solid line If the radiation angle extending from the main part 19 is 0 degree, the radiation angle extending from the suction part main body 19 of the arm 20 indicated by a chain line is 45 degrees. In this way, the radiation angle change position within the surface area of the suction portion main body 19 of the arm 20 can be recorded in accordance with the shape and size of the molded product P sucked by the arm 20, and then the molded product. When changing the radiation angle change position in the surface area of the suction portion main body 19 of the arm 20 according to the shape and size of P, the radiation angle of the arm 20 recorded in the past can be referred to. The setup for taking out a new molded product P can be efficiently performed. In FIG. 3, reference numeral 24 denotes a relief hole penetrating in the center of the suction portion main body 19, and is used for passing the remaining material (sprue) Pa (see FIG. 1) of the molded product P.

  As shown in FIG. 2A, each arm 20 is made of a long metal plate, and a long hole-shaped guide hole 26 is formed in the center of the arm 20 along the longitudinal direction of the arm 20. A scale 27 is formed along the hole 26 so that the suction cups 14 can be quickly and easily moved along the guide hole 26 and the suction cups 14 can be accurately locked at desired positions by the scale 27. it can.

  As shown in FIG. 8, the suction cup 14 is supported by a suction cup support portion 28, and the suction cup support portion 28 is inserted into a guide hole 26 of the arm 20 and can be moved along the guide hole 26. A retaining nut 30 that is screwed into the bolt 29, and a support shaft 31 that is movably inserted into the central through hole 29a of the bolt 29. The central large-diameter portion 31a of the support shaft 31 and the bolt 29 A retaining ring 33 is engaged with the base end portion of the support shaft 31, the suction cup 14 is fitted to the distal end portion of the support shaft 31, and is supported from the central hole of the suction cup 14. A vent hole 34 that penetrates the shaft 31 and opens on the outer peripheral surface of the central large diameter portion 31 a is formed. The suction cup 14 is elastically pressed against the molded product P against the spring 32, and the vent hole 34 is interposed. By sucking the suction cup 14 into the molded product P To wear.

  As shown in FIGS. 4, 5, and 7, in the suction part main body 19, the air passage main body 36 a having a substantially square shape in front view and the outer peripheral surface of the suction part main body 19 extending outward from the air passage main body 36 a A cross-girder-shaped air passage 36 comprising a plurality of branch air passages 36b that are open to each other is formed, and a switching valve 37 that opens and closes each of the branch air passages 36b is provided in front of the suction portion main body 19, and each of the branch air passages Appropriate ones of 36b and the vent holes 34 of the suction cups 14 are communicated with each other by a vent pipe 38a made of a flexible synthetic resin. The suction path extends from the vent path main body 36a and opens to the outer peripheral surface of the suction section main body 19. 36c is formed, and a suction pipe 38b made of flexible synthetic resin is connected to the suction path 36c. The suction pipe 38b, the suction path 36c, the ventilation path 36, and the ventilation pipe 38a are connected by an air pump (not shown). The To suck the air from the suction cup 14.

  As shown in FIG. 7, the switching valve 37 is formed in a columnar shape, and a communication hole 37 a is provided in the center of the switching valve 37 along the transverse direction. An operation groove 39 is formed in the upper end protrusion of the switching valve 37. The retaining ring 40 is engaged with the lower end portion of the switching valve 37. As shown in FIG. 7A, the operation groove is closed from the state where the branch air passage 36b is closed by the switching valve 37. By operating 39 and rotating the switching valve 37 by 90 °, as shown in FIG. 7B, the communication hole 37a is communicated with the branch air passage 36b, and the branch air passage 36b is opened.

  According to the above configuration, the flexible ventilation pipe 38a that connects the branch ventilation path 36b of the suction portion main body 19 and each suction cup 14 is deformable, so that the positions of the arm 20 and the suction cup 14 are independent of the ventilation pipe 38a. Can be adjusted freely.

  Further, in the case where a large number of molded products P are molded by the molds 3 and 4 at a time, any molded product P cannot be sucked by the suction cup 14 and a defective cavity is generated. By closing the branch air passage 36b communicating with the suction cup 14 with the switching valve 37, it is possible to reliably prevent the occurrence of defective cavities.

  The procedure for taking out the molded product P will be described. As shown in FIG. 1A, when the plastic injection molding machine 1 performs molding, the suction part main body 19 of the molded product taking-out device 2 is placed above the plastic injection molding machine 1 in a vertical posture. To wait.

  Next, as shown in FIG. 1 (b), after moving the movable mold 4 away from the fixed mold 3, the suction part main body 19 is lowered b and inserted between both molds 3, 4, and then moved forward. c, each suction cup 14 is adsorbed to the molded product P.

  Thereafter, as shown in FIG. 1 (c), the suction body 19 is moved backward d and raised a in the reverse procedure to the above, returned to the standby position, and connected to the rod 10a by the air cylinder 10. By rotating the suction part main body 19 in the direction of the arrow f via the continuous rod 10b and the movable body 11 into a horizontal posture, the molded product P sucked by the suction cup 14 is brought into a horizontal state.

  Subsequently, as shown in FIG. 1 (d), the suction part main body 19 is moved horizontally c and d, then lowered b, the suction by the suction cup 14 is released, and the molded product P is placed on the belt conveyor 16 or the like. Pass to.

According to the above configuration, since each arm 20 extends in the radial direction from the suction unit main body 19 with respect to the suction unit main body 19, the suction region formed by the plurality of suction cups 14 directly attached to the respective arms 20. K can be positioned as desired according to the shape and number of molded parts P (see FIG. 2 (a)), and the time required for the setup can be greatly reduced compared to the prior art. Ideal for small volume production.

  Further, in accordance with the shape and number of the molded product P, the parts composed of the suction unit main body 19, the arm 20 and the suction cup 14 are appropriately combined. Since the number of parts is small compared to the case of remodeling, the production cost is low.

Further, as shown in FIG. 1 (a), at a site at a distance Ka from the pivot shaft 9 which is the rotation center of the suction portion main body 19 to the radial intermediate portion of the suction region K formed by the plurality of suction cups 14. When the pivot shaft 9 is set, the suction portion main body 19 sucking the molded product P through the suction cup 14 is rotated to change from the vertical posture to the horizontal posture (FIGS. 1C and 1D). ))), Since the centrifugal force applied to the sucked molded product P is evenly distributed and reduced around the pivot shaft 9, the influence of the centrifugal force can be reduced. Thus, it is possible to reliably prevent the accident of dropping the molded product P sucked into the suction part main body 19.

  In the above configuration, in accordance with the shape and number of the molded product P, the four arms 20 are radially extended from the four corners of the suction portion main body 19, and the suction section 14 is attached to each of the arms 20. Although K is formed, the present invention is not limited to this, and the following modification may be used.

The solid line in FIG. 9 is a front view showing a first modified example, in which four arms 20 are extended vertically from the four corners of the suction portion main body 19, and are vertically moved by the suction cups 14 attached to the arms 20. A substantially rectangular suction region K is formed along the same.

9 is a front view showing a second modified example, in which four arms 20 are extended in the horizontal direction from the four corners of the suction portion main body 19, and horizontally by the suction cups 14 attached to the arms 20. A substantially rectangular suction region K is formed along the line.

The solid line in FIG. 10 is a front view showing a third modification, and the two arms 20 are extended vertically from the center of the upper and lower edges of the suction portion main body 19 and are sucked by the suction cups 14 attached to the arms 20. A substantially narrow rectangular suction region K is formed along the vertical direction.

The phantom line in FIG. 10 is a front view showing a fourth modified example, in which two arms 20 are horizontally extended from the center of both side edges of the suction portion main body 19 and each sucker 14 attached to each arm 20 is used. A substantially narrow rectangular suction region K is formed along the horizontal direction.

FIG. 11 is a front view showing a fifth modification example. One arm 20 extends downward from the center of the lower end edge of the suction portion main body 19 and is moved downward by the suction cups 14 attached to the arms 20. A substantially narrow rectangular suction region K is formed.

  FIG. 12A is a front view of the molded product taking-out apparatus 2 according to the second embodiment of the present invention, and FIG. 12B is a view taken along the line E-E. Are extended from the center of the upper and lower edges of the suction portion main body 19 in the opposite directions to each other, and are composed of one or more (four in the second embodiment) long metal plate ( The central portion of the joint member 42 is movably locked to the guide hole 26 of each arm 20 by a locking tool 43 made of a bolt, a nut or the like, so that the rod 42 is extended in the horizontal direction. The suction cups 14 are movably locked to the long hole-shaped guide holes 26 formed at both ends of the guide plate. Since the configuration other than the above is substantially the same as that of the first embodiment (see FIGS. 1 to 8), the same parts are denoted by the same reference numerals and the description thereof is omitted.

  According to the above configuration, a large number of suction cups 14 can be arranged at desired positions along the guide holes 26 of the arm 20 and the rod 42.

  FIG. 13 is a side view showing a state in which a molded product P having a step is being sucked by the molded product take-out device 2 according to the third embodiment of the present invention. The suction cups 14 are fixed to the main body 19 and extended in opposite directions, and the suction cups 14 are locked to one set of arms 20 via a universal joint (joint member). It is locked. Since the configuration other than the above is substantially the same as that of the first embodiment (see FIGS. 1 to 8), the same parts are denoted by the same reference numerals and the description thereof is omitted.

  The universal joint 45 includes a holder portion 45a that is locked to the distal end portion of one arm 20 by a locking tool 46, and a holder portion 45a that is movably inserted into a single split hole of the holder portion 45a and that is fixed by a screw 47. A support rod 45b that is immovably locked to 45a, and a joint plate 45c that is rotatably connected to the tip of the support rod 45b via a connecting shaft 48 and fixed at a predetermined inclination angle. The suction cup support 28 is attached to the tip of the joint plate 45c by a bolt 29 and a retaining nut 30.

  According to the above configuration, even with a molded product P having a level difference, the suction cup 14 locked to the one set of arms 20 via the universal joint 45 and the suction cup 14 locked to the other set of arms 20 are surely secured. Can be aspirated.

  FIG. 14 is a side view showing a state in which the molded product P folded into a substantially square shape is sucked by the molded product take-out device 2 according to the fourth embodiment of the present invention, and includes two sets of short arms. 20 is fixed to the suction portion main body 19 and extended in opposite directions, and the suction cup 14 is locked to the two arms 20 via a universal joint 45. Since the configuration other than the above is substantially the same as that of the third embodiment (see FIG. 13), the same parts are denoted by the same reference numerals and the description thereof is omitted.

  In the above configuration, the suction plate 14 attached to each universal joint 45 is inclined to the inclined surface of the molded product P by rotating the joint plate 45c of each universal joint 45 about the connecting shaft 48 and inclining the joint plate 45c. It is adsorbed on.

  According to the above configuration, even a molded product P having an inclined surface or a spherical surface can be reliably sucked by the suction cups 14 locked to the arms 20 of both sets via the universal joint 45.

DESCRIPTION OF SYMBOLS 1 Plastic injection molding machine 2 Molded product taking-out apparatus 3 Fixed mold 4 Movable mold 8 Moving body 9 Pivoting shaft 11 Movable plate 12 Suction part 14 Suction cup 19 Suction part main body 19a Scale 20 Arm 20a Arm base 21 Screw hole 22 Fastening Tool 26 Guide Hole 27 Scale 36 Ventilation Channel 36a Ventilation Channel Body 36b Branch Ventilation Channel 36c Suction Channel 37 Switching Valve 38a Ventilation Pipe 38b Suction Pipe 42 Rod (Coupling Member)
43 Locking tool 45 Universal joint (joint member)
P Molded product K Suction area

Claims (7)

A movable body that is movable in the vertical direction and the horizontal direction, a movable plate that is pivotally supported by a lower end of the movable body via a pivot shaft and can be changed in a vertical posture and a horizontal posture, and the movable plate A suction part attached to the plate, the suction part is provided with a plurality of suction cups that form suction areas corresponding to the molded product, and a fixed mold and a movable mold of the plastic injection molding machine, After forming the molded product with the above, the moving body is moved downward to insert the suction part in the vertical position between the two molds separated from each other, and the molded product is sucked by each suction cup of the suction part, and the moving body is lifted up. After moving the suction part around the pivot shaft to a horizontal posture to bring the sucked molded product into a horizontal state, the movable body is moved horizontally to move the sucked molded product to a predetermined position. In the molded product take-out device of the plastic injection molding machine, the suction part is Is secured to the moving plate has a suction unit body to be rotated about the pivot shaft through the movable plate, and a multiple arms arranged symmetrically about said pivot shaft, said A plurality of screw holes are formed in the vicinity of the outer periphery of the front surface of the suction portion body at predetermined intervals, and the base end portion of the arm is fastened by a fastening tool screwed into an appropriate screw hole among the screw holes. Thus, these arms are extended radially from the suction part main body, and the suction cups are attached to these arms directly or indirectly via a joint member, and at the radial intermediate part of the suction area of the suction part. The pivot shaft is positioned, and a plurality of arms extending radially from the base end member are fixed to the main body of the suction portion with a base end portion. Both are fixed within the surface area of the suction unit body so that the radiation angle can be changed. Demolding device of the plastic injection molding machine comprising displaying a scale indicating the radiation angle changing position of the surface region of the arms to the suction unit body. An air passage comprising an annular air passage main body and a plurality of branch air passages extending outward from the air passage body and opening on the outer peripheral surface of the suction portion main body is formed in the suction portion main body. A switching valve that opens and closes the passage is provided in the suction part body, and an appropriate one of the branched air passages and the suction cups are communicated with each other by a flexible ventilation pipe, and extend from the air passage body to extend the suction part body. A suction path that opens to the outer peripheral surface is formed, and a suction pipe is connected to the suction path, and the suction pipe sucks air from each suction cup through the suction path, the ventilation path, and the ventilation pipe. Item 2. A molded product takeout device for a plastic injection molding machine according to Item 1 . The plastic injection molding machine according to claim 1 or 2 , wherein a long hole-shaped guide hole is formed in a central portion of the arm along the longitudinal direction of the arm, and a suction cup is movably locked in the guide hole. Mold take-out device. The joint member is composed of a rod, and the central portion of the rod is movably locked via a locking tool in a long hole-shaped guide hole formed along the longitudinal direction of the arm, and formed at both ends of the rod. The molded product take-out device for a plastic injection molding machine according to any one of claims 1 to 3 , wherein a suction cup is movably locked in the elongated hole-shaped guide hole. Demolding device of the plastic injection molding machine according to claim 3 or 4 scales along the guide hole is being displayed. The joint member is composed of a universal joint, the arm is divided into two groups, and the suction cup is locked to one arm of the pair via the universal joint, and the suction cup is locked to the other set of arms. An apparatus for taking out a molded product of a plastic injection molding machine according to claim 1 or 2 . 3. The plastic injection molding machine according to claim 1, wherein the joint member is formed of a universal joint, the arms are divided into two groups, and a suction cup is engaged with the arms of both groups via the universal joint. Mold take-out device.

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