JP2011073313A - Device and method for manufacturing insert-molded article - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve production efficiency by reducing the operation stopping time of a device due to the inferior shape of components for insert molding, in manufacturing an insert molded article. <P>SOLUTION: The insert molded article is manufactured in the following steps for: arranging a component for insert molding on a component feeding table; sucking the back surface of the component which is a surface for the component to be arranged onto the component feeding table, and conforming component determining process that is, the component for which a suction pressure reaches a threshold limit value, is determined as a conformed one; sucking and holding the face surface side of only the component determined as conformed one by the conforming component determining process by a robot arm, and taking out the component from the component feeding table; arranging the component kept sucked and held by the robot arm at an arrangement part for an insert member inside a mold; and manufacturing an insert molded object formed integrally of a resin and the component by injecting the resin into the mold. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  In the present invention, an insert part placed on a part supply table is picked up by holding by a robot arm, placed in a part installation part in a mold, injected into the mold, and injected with resin. The present invention relates to an insert molded product manufacturing apparatus and method for injection molding an insert molded product integrated with a component.

  Various conventional manufacturing apparatuses for manufacturing this type of insert-molded product are known (see, for example, Patent Documents 1 to 3), and a typical configuration will be described with reference to FIG.

  As shown in FIG. 1, a conventional insert molded product manufacturing apparatus 100 includes an injection molding device 110 that performs injection molding of a molded product by injecting a resin into a mold, and a component supply table on which the insert component 1 is arranged. The set table 120 and the parts 1 arranged on the set table 120 are sucked and held from the surface side, and the removed parts are placed on the parts installation part in the mold of the injection molding apparatus 110. An arm 130 and a robot control unit 139 that controls the operation of the robot arm 130 are provided.

  On the upper surface of the set stand 120, a pallet 121, which is a plate-like member on which the insert part 1 which is mainly a metal part, is placed. A pallet 121 having an appropriate size is used in consideration of the shape and size of the part 1 to be handled.

  The robot arm 130 includes a hand portion 131 that is a hand portion provided with a suction mechanism that sucks and holds the surface of a component, a plurality of joint mechanisms, and a drive mechanism thereof, and moves the hand portion 131 to a desired position. Arm portion 132. The component 1 arranged on the pallet 121 of the set stand 120 is sucked and held on the surface side by the hand portion 131, and the hand portion 131 is moved by the arm portion 132, so that the sucked and held component 1 is Moved to the component installation part in the mold. The robot arm 130 also plays a role of taking out an insert molded product molded by the injection molding apparatus 110 from a mold and transporting it.

  The injection molding apparatus 110 is wound so that, for example, the mold 111 (cavity side) and the mold 112 (core side) and the transfer sheet 113 are disposed between the molds 111 and 112, respectively. A transfer sheet feeding device 114 that feeds and supplies the transfer sheet 113 in a state, and a resin injection device 115 that supplies molten resin into an injection molding space formed by the molds 111 and 112. Further, in the mold 112, a component installation portion 116 in which the insert component 1 is disposed is provided.

  The robot controller 139 controls the operation of the robot arm 130 in accordance with the operation of the injection molding apparatus 110.

  In such a conventional insert molded product manufacturing apparatus 100, a method of manufacturing an insert molded product in which the insert part 1 is integrated with a resin will be described.

  First, the operator inserts the insert part 1 at a predetermined position on the pallet 121 of the set stand 120. Next, the hand portion 131 of the robot arm 130 is positioned above the component 1 arranged on the pallet 121, and thereafter, the hand portion 131 and the surface of the component 1 are brought into contact with each other and held by suction. Is raised, the part 1 is taken out from the pallet 121. Thereafter, the component 1 in the state of being sucked and held by the hand unit 131 is arranged in the component setting unit 116 in the mold 112 that is opened in the injection molding apparatus 110.

  After the component 1 is placed in the mold 112, the molds 111 and 112 are closed, and molten resin is injected from the resin injection device 115 into the injection molding space formed therein. When the molten resin is cooled and solidified, an insert molded product in which the insert part 1, the transfer sheet 113, and the resin are integrated is manufactured.

  While the insert-molded product is manufactured by this injection molding, the robot arm 130 is moved to the upper side of the set table 120 and the next part 1 is picked up and held by suction and held by suction. The next part 1 is moved to the vicinity of the injection molding apparatus 110. Thereafter, in the injection molding apparatus 110, the molds 111 and 112 are opened, and the manufactured insert molded product is sucked and held by the hand portion 131 of the robot arm 130 and taken out. At the same time, the next component 1 sucked and held by the hand unit 131 is placed in the component setting unit 116 in the mold 112 that is opened. Thereafter, the insert molded product that is sucked and held by the hand unit 131 is moved to a place where the predetermined molded product is arranged. These series of operations are sequentially repeated, and insert molded products are continuously manufactured by the insert molded product manufacturing apparatus 100.

JP-A 63-220967 Japanese Patent Laid-Open No. 11-207750 JP 2002-321253 A

  However, in such a conventional insert molded product manufacturing apparatus 100, when the robot arm 130 picks up and holds the component 1 from the pallet 121, there is a case where a take-out error occurs. This includes a part 1 having a shape defect due to the quality of the insert part 1, and therefore, when the defective part 1 is sucked and held by the hand portion 131, a sufficient suction pressure cannot be obtained. This is due to

  When such an error of the robot arm 130 occurs, it is necessary to temporarily stop the robot arm 130 in order to cancel this error, and it takes time until the operation is restored after the stop. During this time, the entire insert molded product manufacturing apparatus 100 is stopped. In particular, such an error may occur at a frequency of more than a dozen times / day, and the production of the insert molded product is stopped each time the error occurs, and the production efficiency of the insert molded product manufacturing apparatus 100 is significantly reduced. There is a problem of doing.

  Accordingly, an object of the present invention is to solve the above-mentioned problem, and the insert parts arranged on the parts supply table are picked up and held by the robot arm and placed on the parts installation part in the mold. In the production of an insert molded product by injecting a resin into the mold and injection molding an insert molded product in which the resin and the component are integrated, the device operation stop time based on the shape defect of the insert component is reduced. An object of the present invention is to provide an apparatus and method for manufacturing an insert-molded product that can be reduced and production efficiency can be improved.

  In order to achieve the above object, the present invention is configured as follows.

  According to the first aspect of the present invention, a component supply table including a suction device that sucks a back surface of a component, which is an arrangement surface of the insert component, and a component installation portion are provided in the mold. An injection molding apparatus that manufactures an insert molded product in which resin and parts are integrated by injecting resin into the mold, and the parts placed on the parts supply table are sucked and held from the parts supply table. Take out the robot arm that takes out and places the part on the part installation part in the mold, and executes the non-defective product judgment process that judges the part that the suction pressure on the back side of the part placed on the part supply table reaches the threshold Provided with a device for manufacturing an insert-molded product, including a control device that performs a part picking operation by a robot arm only on a component that is determined to be non-defective by execution of a non-defective product determination process .

  According to the second aspect of the present invention, on the component supply table, the suction hole for applying the suction pressure from the suction device to the rear surface of the component and the positioning member engaged with the component are disposed. The pallet formed in the region is arranged, and the suction pressure is applied to the component through the suction hole by the suction device in a state where the pallet formed on the pallet is engaged with the positioning member and the arrangement of the component in the horizontal direction is positioned. The manufacturing apparatus of the insert molded product as described in a 1st aspect is provided.

  According to the third aspect of the present invention, the suction hole is formed on the pallet so that the back surface of the component is sucked at a location including at least the central region of the back surface of the component and the edge regions with respect to the central region. The control device provides the insert molded product manufacturing apparatus according to the second aspect, in the non-defective product determination process, which determines that a component whose suction pressure has reached a threshold value at all suction locations is a good product.

  According to the fourth aspect of the present invention, the suction hole is formed on the pallet so that the back surface of the component is sucked in an area that is at least half the area of the entire back surface of the component. An apparatus for manufacturing an insert-molded product according to an aspect is provided.

  According to the fifth aspect of the present invention, in the component supply table, the first pallet, the second pallet, and the first and second pallets arranged adjacent to each other are picked up by the robot arm. A pallet moving device that moves forward and backward between a part take-out position and a part placement position at which parts are placed and placed on the pallet; the first pallet is located at the part take-out position; While taking out is performed, the second pallet is positioned at the component placement position, and the supply and placement of the component on the second pallet is performed. An apparatus for producing the described insert-molded product is provided.

  According to the sixth aspect of the present invention, in the component supply table, the first pallet, the second pallet, and the first and second pallets arranged adjacent to each other are picked up by the robot arm. A pallet moving device that moves forward and backward between the part removal position and the part placement position where the parts are placed and placed on the pallet, and with the pallet located at the part placement position, From the second mode to the fourth mode, the determination process is executed, and only the pallet on which the part determined to be non-defective is placed is moved from the part placement position to the part pick-up position by the pallet moving device. An apparatus for producing the described insert-molded product is provided.

  According to the seventh aspect of the present invention, the insert part is a part formed so that the shape on the front surface side and the shape on the back surface side are different from each other. The manufacturing apparatus of the insert molded product as described in 1. is provided.

  According to the eighth aspect of the present invention, the insert part is arranged on the part supply table, the back surface of the part which is the arrangement surface to the part supply table is sucked, and the part whose suction pressure reaches the threshold value is regarded as a non-defective product. The non-defective product determination process is performed, and only the parts that are determined to be non-defective products in the non-defective product determination process are sucked and held by the robot arm, the parts are taken out from the parts supply table, and sucked and held by the robot arm. A method for producing an insert molded product, in which a part is placed in an installation part of an insert member in a mold, and a resin is injected into the mold to produce an insert molded product in which the resin and the component are integrated. provide.

  According to the ninth aspect of the present invention, on the component supply table, a pallet including a positioning member is arranged in the component arrangement region, and the positioning member and the component are engaged and positioned in the horizontal direction. Provided is a method for manufacturing an insert-molded product according to an eighth aspect, in which a non-defective product determination process is performed on a component.

  According to the tenth aspect of the present invention, in the non-defective product determination process, suction is performed at least at the center region on the back surface of the component and at the positions including both end edge regions with respect to the center region, and the suction pressure is a threshold value at all suction locations. A method for producing an insert-molded product according to the ninth aspect is provided, in which a part that has reached the above is determined as a non-defective product.

  According to the eleventh aspect of the present invention, in the non-defective product determination process, the component is sucked in at least half the area of the entire back surface of the component, and the component whose suction pressure has reached the threshold value is determined as the non-defective product in the ninth mode. A method for producing the described insert-molded product is provided.

  According to the twelfth aspect of the present invention, the first and second pallets are disposed adjacent to each other on the component supply table, the first pallet is positioned at the component take-out position, and the first arm is moved by the robot arm. While taking out the parts arranged on the pallet, the second pallet is positioned at the parts placement position, and the parts are placed and arranged on the second pallet. The manufacturing method of the insert molded article as described in any one of 11 aspects is provided.

  According to the thirteenth aspect of the present invention, the first and second pallets are arranged adjacent to each other on the component supply table, and the pallet is positioned at the component arrangement position where the components are arranged on the pallet. In this state, the non-defective product judgment process is executed, and only the pallet on which the part judged to be non-defective is placed is moved from the part placement position to the part pick-up position. A method for producing an insert-molded article according to any one of the ninth to eleventh aspects is provided, in which the components arranged in the above are taken out.

  According to the fourteenth aspect of the present invention, the insert component provides the method for manufacturing an insert-molded product according to any one of the eighth to thirteenth aspects, wherein the back side is a flat surface.

  According to the present invention, the non-defective product determination process is performed in which the insert components arranged on the component supply table are sucked and only the components whose suction pressure reaches the threshold value are determined as non-defective products. Only the parts that have been picked up are sucked and held by the robot arm. Therefore, it is possible to discriminate a part having a shape defect before sucking and holding by the robot arm, and suck and hold only the non-defective product by the robot arm. Therefore, the occurrence frequency of the suction holding error by the robot arm can be reduced, and the production efficiency in the manufacture of the insert molded product can be improved.

Schematic diagram showing the configuration of a conventional insert molded product manufacturing device The schematic diagram which shows the structure of the insert molded article manufacturing apparatus concerning one Embodiment of this invention. Schematic plan view of insert parts A-A 'line sectional view of the insert part of FIG. 3A Schematic plan view of insert molded product B-B 'sectional view of the insert molded product of FIG. 4A Schematic plan view showing the configuration of the pallet Side view of the pallet of FIG. 5A Schematic plan view showing the configuration of the hand part of the robot arm Schematic diagram showing the arrangement of suction holes on the pallet Schematic diagram showing the arrangement of suction holes on the pallet Schematic diagram showing the arrangement of suction holes on the pallet Schematic showing a configuration in which multiple pallets are placed on a set stand Schematic diagram of insert parts according to a modification of the present embodiment Schematic diagram of an insert molded product in which the insert part of FIG. 9 and the resin are integrated.

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

  The schematic diagram of schematic structure of the insert molded product manufacturing apparatus 50 which is an example of the insert molded product manufacturing apparatus concerning one Embodiment of this invention is shown in FIG.

  As shown in FIG. 2, the insert molded product manufacturing apparatus 50 of the present embodiment includes an injection molding apparatus 10 that performs injection molding of a molded product by injecting a resin into a mold, and a component in which the insert part 1 is arranged. The set table 20 which is a supply table, and the parts 1 arranged on the set table 20 are sucked and held from the surface side, and the removed parts 1 are installed in the mold of the injection molding apparatus 10. And a robot control unit 39 for controlling the operation of the robot arm 30.

  The insert part 1 is a part mainly formed of a metal material, and is a part used for an insert molded product that is integrated with the resin in a state of being inserted into the resin. As shown in FIGS. 3A and 3B (cross-sectional view taken along the line AA ′ in FIG. 3A), the back surface 1b side (the right side surface in FIG. 2B) is formed as a substantially flat surface. On the other hand, a plurality of protruding portions 1c are formed on the surface 1a side. Note that the upper surfaces of these protruding portions 1c are substantially flat surfaces, and even if fine irregularities are applied on the flat surfaces for decoration. good. As shown in FIG. 3A, a positioning through-hole 1 d is formed in the vicinity of the corner of the component 1 when the component 1 is placed on the set table 20 or the like.

  In addition, here, schematic views of the insert molded product 2 in which the insert component 1 is integrated with a resin are shown in FIGS. 4A and 4B (a cross-sectional view taken along line B-B ′ in FIG. 4A). As shown in FIGS. 4A and 4B, the component 1 is inserted into the resin 3, and the protruding portions 1 c on the surface 1 a of the component 1 are exposed from the resin 3. Yes. As described above, since a part of the component 1 is exposed from the resin 3, the insert molded product 2 is decorated with the protruding portions 1 c of the component 1. Such decoration by the component 1 is used, for example, when forming a logo mark of a product.

  As shown in FIG. 2, a pallet 21, which is a plate-like member on which the insert part 1, which is mainly a metal part, is placed is disposed on the upper surface of the set table 20. The pallet 21 is appropriately sized in consideration of the shape and size of the part 1 to be handled.

  Here, the details of the pallet 21 are shown in the schematic views of FIGS. 5A and 5B. As shown in FIG. 5A and FIG. 5B, the pallet 21 has a substantially plate-like form, and for example, two component setting jigs 22 on which the component 1 is placed are set on the upper surface. Yes. The upper surface of the component installation jig 22 is a component placement region where the component 1 is placed, and in this region, a positioning pin (a positioning member) is inserted into the through hole 1d of the component 1 (see FIG. 3A). An example) Two 23 are provided. By placing the component 1 on the component installation jig 22 so that the positioning pin 23 is inserted into the through hole 1d, the component 1 is positioned in the horizontal direction.

  Further, as shown in FIG. 5B, each component installation jig 22 is formed with a suction hole 24 for sucking the back surface 1 b side of the arranged component 1, and through this suction hole 24, the component 1 It is possible to apply a suction pressure to the back surface 1b. The arrangement of the suction holes 24 will be described later. A pair of guide pins 25 for positioning with the robot arm 30 are provided on the top surface of the pallet 21.

  As shown in FIG. 2, each suction hole 24 provided in the pallet 21 is connected to a suction device 27 through a series of suction passages 26 formed in the pallet 21 and the set base 20. The suction device 27 generates a predetermined suction pressure, and can apply the suction pressure to the back surface 1b of the component 1 arranged on each component installation jig 22 through the suction passage 26 and the suction hole 24. it can. A sensor 28 for detecting the suction pressure is provided in the middle of the suction passage 26.

  The robot arm 30 includes a hand portion 31 that is a hand portion provided with a suction mechanism for sucking and holding the surface of a component, a plurality of joint mechanisms, and a drive mechanism thereof, and moves the hand portion 31 to a desired position. Arm portion 32. The component 1 arranged on the pallet 21 of the setting table 20 is sucked and held on the surface 1a side by the hand portion 31, and the hand portion 31 is moved by the arm portion 32, so that the sucked and held component 1 is , Can be moved to the component installation part in the mold. Further, the robot arm 30 also plays a role of taking out the insert molded product 2 molded by the injection molding apparatus 10 from the mold and transporting it.

  Here, a schematic plan view of the hand portion 31 of the robot arm 30 is shown in FIG. As shown in FIG. 6, a plurality of suction holes 33 for sucking and holding the components 1 arranged on the pallet 21 are formed in the hand portion 31 (the lower surface side of the hand portion 31 shown in FIG. 2). . These suction holes 33 are provided on the pallet 21 so as to correspond to the arrangement of the respective components 1 positioned and arranged. Also, a pair of guide bushes 34 for positioning the hand portion 31 is provided when the component 1 is taken out by suction holding or when the component 1 is placed in the mold. The guide bush 34 is provided so as to correspond to the arrangement of the pair of guide pins 25 provided on the upper surface of the pallet 21. By positioning the guide bush 34 with respect to the guide pins 25, the guide bush 34 is separated from the pallet 21. The hand portion 31 can be positioned when the 1 is taken out. Furthermore, as shown in FIG. 6, the hand portion 31 is provided with a plurality of suction pads 35 for sucking and holding the insert molded product 2 from the mold.

  As shown in FIG. 2, in the injection molding apparatus 10, for example, a transfer sheet 13 is disposed between a mold 11 (cavity side) and a mold 12 (core side), and the molds 11 and 12. The transfer sheet feeding device 14 that feeds and feeds the rolled transfer sheet 13, and the resin injection device 15 that supplies the molten resin into the injection molding space formed by the molds 11 and 12. It has. Further, in the mold 12, there is provided a component setting portion 16 in which the insert component 1 sucked and held by the robot arm 30 is disposed. The injection molding apparatus 10 includes an injection molding control unit 17 that controls the operations of the respective apparatuses in the injection molding while associating them with each other.

  The robot control unit 39 (an example of a control device) controls the operation of the robot arm 30 in accordance with the operation of the injection molding device 110. The robot control unit 39 is connected to the suction device 27 and the sensor 28, and the suction pressure generated in the suction passage 26 due to the application of the suction pressure of the suction device 27 is detected by the sensor 28. Input to the robot control unit 39 is possible. The robot control unit 39 and the injection molding control unit 17 can exchange control signals with each other, and the operation of the robot arm 30 and the operation of the injection molding apparatus 10 are associated with each other and controlled.

  A method for manufacturing the insert molded product 2 in which the insert part 1 is integrated with the resin 3 in the insert molded product manufacturing apparatus 50 of the present embodiment having such a configuration will be described. In addition, each operation | movement demonstrated hereafter is performed when each structure part is controlled by control parts, such as the robot control part 39 and the injection molding control part 17. FIG.

  First, the insert component 1 is arranged on each component installation jig 22 on the pallet 21 of the set table 20 by an operator. At this time, the arrangement of the component 1 is made with the back surface 1b side of the component 1 as the lower surface so that the pair of positioning pins 23 of the component installation jig 22 are inserted into the pair of through holes 1d formed in the component 1. Done. Each component 1 placed in this manner is positioned on the pallet 21 in the horizontal direction. Each component 1 is the same component.

  Next, the suction device 27 is driven, and suction pressure is applied to the back surface 1 b of the component 1 through the suction passage 26 and the suction hole 24. The applied suction pressure is detected by a sensor 28 provided in the middle of the suction passage 26, and the detected suction pressure P 1 is input to the robot controller 39. The robot controller 39 determines whether or not the input suction pressure P1 has reached a preset suction pressure threshold value P0. When the robot control unit 39 determines that the suction pressure P1 has reached the threshold value P0, the part 1 arranged on the pallet 21 has undergone deformation such as bending or warping. Judged to be a non-defective part. On the other hand, when the robot control unit 39 determines that the suction pressure P1 has not reached the threshold value P0, the part 1 arranged on the pallet 21 is deformed such as bending or warping in shape. It is determined that the part is a defective part. Such determination processing based on the suction pressure P1 is performed by the robot control unit 39 as non-defective product determination processing.

  When it is determined that the part 1 is defective by executing the non-defective product determination process, for example, an alarm display indicating that the part 1 is defective is displayed on a touch panel (not shown) provided in the suction device 27. Let The worker who has confirmed this display performs the work of exchanging and arranging the component 1 arranged on the pallet 21 with another new component 1. The replacement arrangement work of the component 1 is performed in a state where the suction by the suction device 27 is stopped.

  When it is determined that the component 1 is a non-defective product by executing the non-defective product determination process, the robot arm 30 performs an operation of taking out the component 1.

  Specifically, first, the hand portion 31 of the robot arm 30 is positioned above the component 1 arranged on the pallet 21. This positioning is performed by positioning the pair of guide bushes 34 of the hand portion 31 with the pair of guide pins 25 of the pallet 21.

  Thereafter, the hand portion 31 is lowered, the lower surface of the hand portion 31 comes into contact with the surface 1 a of the component 1, and the surface 1 a of the component 1 is sucked and held through the suction holes 33 of the hand portion 31. Before and after the suction holding, the application of the suction pressure through the respective suction holes 24 of the pallet 21 is stopped, and then the hand unit 31 is raised, so that the component 1 is detached from the pallet 21 and taken out.

  Thereafter, the hand unit 31 is moved by the arm unit 32, and the component 1 in the state of being sucked and held by the hand unit 31 is transferred to the component setting unit 16 in the mold 12 opened in the injection molding apparatus 10. Be placed. In the component installation unit 16, the component 1 delivered from the hand unit 31 is securely held by a method such as suction holding of the component 1 or engagement holding by a positioning member.

  In the injection molding apparatus 10, after the component 1 is installed in the mold 12, the molds 11 and 12 are closed, and molten resin is injected from the resin injection apparatus 15 into the injection molding space formed inside the mold 11. Is done. Thereafter, the molten resin is cooled and solidified, whereby an insert molded product 2 in which the insert part 1, the transfer sheet 13, and the resin 3 are integrated is manufactured.

  While the insert-molded product 2 is manufactured by this injection molding, the robot arm 30 is moved above the set table 20 and the next part 1 is picked up and held by suction and held by suction. The next part 1 is moved to the vicinity of the injection molding apparatus 10. Thereafter, in the injection molding apparatus 10, the molds 11 and 12 are opened, and the manufactured insert molded product 2 is sucked and held by the suction pad 35 of the hand portion 31 of the robot arm 30 and taken out. At the same time, the next component 1 sucked and held by the hand unit 31 is placed in the component setting unit 16 in the mold 12 that is opened. Thereafter, the insert molded product 2 in the state of being sucked and held by the hand unit 31 is moved to a predetermined place of the molded product. The series of operations are sequentially repeated, and the insert molded product 2 is continuously manufactured by the insert molded product manufacturing apparatus 50.

  Next, an example of the form of the suction holes 24 formed in the component placement region in the component placement jig 22 of the pallet 21 will be described with reference to FIGS. 7A, 7B, and 7C.

  In the example shown in FIG. 7A, three long hole-shaped three regions are sucked so as to suck the central region in the longitudinal direction of the component 1 having a substantially rectangular shape in plan view and both end edge regions in the longitudinal direction with respect to the central region. A suction hole 24A is formed. The length of the long hole-shaped suction hole 24 </ b> A is set so that suction is performed in a region as long as possible in the width direction of the component 1 except for the position where the positioning pin 23 is formed.

  Next, in the example shown in FIG. 7B, a suction hole 24B is formed so that the back surface 1b of the component 1 can be sucked in as large an area as possible. Specifically, one large suction hole 24 </ b> B is formed on the back surface 1 b of the component 1 so that the region excluding the position where the positioning pin 23 is formed and the vicinity of the edge of the component 1 can be sucked. Further, it is preferable that an O-ring 29 is disposed on the periphery of the suction hole 24B so that such a large region can be reliably sucked. Further, such a suction area is more preferably set to, for example, half or more of the entire area of the back surface 1b of the component 1.

  In the example shown in FIG. 7C, a plurality of suction holes 24C are arranged in a matrix. Specifically, on the back surface 1b of the component 1, a plurality of suction holes 24C are arranged in a matrix at locations other than the positions where the positioning pins 23 are formed. That is, the suction holes 24C are always arranged in the respective areas (except for the position where the positioning pins 23 are formed) obtained by dividing the back surface 1b of the component 1 into nine grids.

  By forming the suction holes 24A to 24C as illustrated in FIGS. 7A to 7C, it is possible to more reliably detect the shape defect (bend or warp) of the insert part 1. That is, when the component 1 is a defective shape, at least a part of the back surface 1b of the component 1 is lifted, so that any one of the suction holes 24A to 24C is opened. Become. Therefore, the suction pressure does not reach the threshold value, and such a shape defective product can be reliably determined by detecting the suction pressure. In particular, in the back surface 1b of the component 1, it is possible to increase the probability that the presence or absence of deformation of the component 1 can be detected by sucking a portion including at least the central region and both end edge regions. In particular, since the insert part 1 is a part that is relatively small and requires high accuracy (decoratively high accuracy is required), suction is performed over a wide area on the back surface 1b. By determining the presence or absence of a pressure increase, the presence or absence of deformation of the component 1 can be reliably detected.

  Thus, according to the present embodiment, before the suction holding by the robot arm 30 is performed, the component 1 arranged on the pallet 21 is suctioned and whether the generated suction pressure has reached the threshold value or not. Based on the above, the non-defective / defective product determination of the component 1 is executed (non-defective product determination processing), and the robot arm 30 performs suction holding only for the component 1 determined to be non-defective. Therefore, the frequency at which the suction holding error is generated by the robot arm 30 can be remarkably reduced, and the production efficiency in the manufacture of the insert molded product can be improved.

  In addition, since such a non-defective product determination process can be performed by sucking the back surface 1b of the component 1 arranged on the pallet 21, an additional operation for performing the good product determination process (component placement operation) Production movement, etc. are not affected.

  In the description of the above-described embodiment, one sensor 28 is provided in the middle of the supply suction path 26 communicated with the respective suction holes 24 for sucking the two components 1 arranged on the pallet 21. Although an example in which the suction pressure is detected has been described, the present invention is not limited to such a case. Instead of such a case, for example, a suction passage communicating with the suction hole 24 of each component 1 may be provided individually, and a sensor may be provided individually on each suction passage. By providing the sensor in this way, the non-defective product / defective product can be individually determined for the two components 1.

  Moreover, although the case where the hand unit 31 of the robot arm 30 holds the component 1 by suction holding has been described, instead of such a case, for example, the component 1 is held by means such as an electromagnet. In other cases, the holding by the gripping means may be performed.

  Further, in the pallet 21, instead of the case where two parts 1 are supplied at the same time, one part 1 is supplied or three or more parts 1 are supplied simultaneously. May be. Moreover, the parts supplied simultaneously may be parts having different shapes.

  In the description of the above-described embodiment, the case where the surface shape and the back surface shape of the insert component 1 are each configured by a flat portion and a protruding portion has been described. However, instead of such a case, the surface of the insert component 1 Both the shape and the back surface shape may be formed by a flat portion as a whole.

  Further, the insert part may have a porous part in a part thereof. An example of an insert part having such a porous portion is shown in the schematic view of FIG. As shown in FIG. 9, the insert part 81 has a flat part 81A and a porous part 81B (for example, a through hole). A through hole 81C is formed in the flat portion 81A of the insert part 81. The insert part 81 is picked up by the flat portion 81A, whereby non-defective product determination processing and suction holding are performed. Moreover, the schematic diagram of the insert molded product 82 manufactured using such an insert part 81 is shown in FIG. As shown in FIG. 10, in the insert molded product 82 in which the insert part 81 and the resin 83 are integrated, the flat portion 81 </ b> A is covered with the resin 83 and the porous portion 81 </ b> B is exposed from the resin 83. . As a result, the insert molded product 82 is decorated by the porous portion 81A of the insert part 81, and has a high decorative property. Such decoration of parts is used, for example, when creating a phone part (such as a microphone or a speaker part) of a telephone.

  Moreover, the supply form by the pallet 21 of this embodiment can employ | adopt various other forms. For example, as shown in FIG. 8, the set stand 70 includes a first pallet 71, a second pallet 72, and first and second pallets 71, 72 arranged adjacent to each other by the robot arm 30. It is configured to include a pallet moving device 73 that moves forward and backward between a component pick-up position R1 where the component 1 is picked up and a component placement position R2 where the supply and placement of the component 1 are performed on the pallets 71 and 72. ing.

  In the set table 70 according to such a modification, the first pallet 71 is placed on the part pallet 72 while the second pallet 72 is positioned at the part take-out position R1 and the part 1 is being taken out by the robot arm 30. It is possible to arrange supply of a new component 1 on the first pallet 71 by being positioned at the arrangement position R2. Thus, by supplying the components 1 alternately by the plurality of pallets 71 and 72, the components 1 can be supplied more efficiently. In addition, the structure which supplies components by such advancing / retreating movement of a plurality of pallets can also be called a pallet changer.

  Further, in such a set stand, the non-defective product determination process is performed in a state where the pallets 71 and 72 are positioned at the component placement position R2, and the pallets 71 and 72 determined to be non-defective are positioned at the component extraction position R1. It may be. In addition, you may make it install three or more such pallets.

  It is to be noted that, by appropriately combining arbitrary embodiments of the various embodiments described above, the effects possessed by them can be produced.

DESCRIPTION OF SYMBOLS 1 Insert part 1a Front surface 1b Back surface 1c Protrusion part 1d Through-hole 2 Insert molded product 3 Resin 10 Injection molding apparatus 11 Mold (cavity side)
12 Mold (core mold)
13 Transfer Sheet 14 Transfer Sheet Feed Device 15 Resin Injection Device 16 Component Installation Unit 17 Injection Molding Control Unit 20 Set Stand 21 Pallet 22 Component Installation Jig 23 Positioning Pin 24 Suction Hole 25 Guide Pin 26 Suction Passage 27 Suction Device 28 Sensor 30 Robot Arm 31 Hand unit 32 Arm unit 33 Suction hole 34 Guide bush 35 Suction pad 39 Robot control unit 50 Insert molded product manufacturing apparatus

Claims (14)

A component supply table including a suction device that sucks the back surface of the component on which the insert component is disposed, and the placement surface;
An injection molding apparatus for producing an insert molded product in which a part installation part is provided in a mold and the resin and the part are integrated by resin injection into the mold;
A robot arm that picks up and holds the parts arranged on the parts supply table, picks up and holds the surface side from the parts supply table, and places the parts on the parts installation part in the mold,
Executes a non-defective product determination process that determines that a part whose suction pressure on the back side of the part placed on the component supply table has reached a threshold value is a non-defective product. An apparatus for manufacturing an insert-molded product, comprising: a control device that performs an operation of taking out a component by an arm.   On the component supply table, there is disposed a pallet in which a suction hole for applying a suction pressure from the suction device to the back surface of the component and a positioning member engaged with the component are formed in the component arrangement region. The insert molded product according to claim 1, wherein a suction pressure is applied to the component through a suction hole by a suction device in a state where the arrangement of the component in the horizontal direction is positioned by being engaged with a positioning member on the pallet. Manufacturing equipment. At least a suction hole is formed on the pallet so that the back surface of the component is sucked at a location including the center region of the back surface of the component, and both end edge regions with respect to the center region,
The apparatus for manufacturing an insert-molded product according to claim 2, wherein the control device determines, in the non-defective product determination process, a component whose suction pressure has reached a threshold value at all suction locations as a non-defective product.   The apparatus for manufacturing an insert-molded product according to claim 2 or 3, wherein suction holes are formed on the pallet so that the back surface of the component is sucked in an area of at least half of the entire area of the back surface of the component. The parts supply table is
A first pallet and a second pallet arranged adjacent to each other;
A pallet moving device that moves the first and second pallets forward and backward between a part picking position where parts are picked up by a robot arm and a part placing position where parts are placed on the pallet;
While the first pallet is positioned at the component extraction position and the components are being picked up by the robot arm, the second pallet is positioned at the component placement position, and the supply arrangement of the components on the second pallet is performed. The apparatus for manufacturing an insert-molded product according to any one of claims 2 to 4, wherein: The parts supply table is
A first pallet and a second pallet arranged adjacent to each other;
A pallet moving device that moves the first and second pallets forward and backward between a part picking position where parts are picked up by a robot arm and a part placing position where parts are placed on the pallet;
With the pallet positioned at the component placement position, the non-defective product judgment process is executed by the control device, and only the pallet on which the part judged to be good is placed is moved from the component placement position to the component removal position by the pallet moving device. The apparatus for manufacturing an insert-molded product according to any one of claims 2 to 4, which is moved.   The insert molded product manufacturing apparatus according to any one of claims 1 to 6, wherein the insert component is a component formed such that a shape on the front surface side and a shape on the back surface side are different from each other. Place the insert parts on the parts supply table,
Suction the back side of the component, which is the placement surface to the component supply table, and carry out a non-defective product determination process that determines that a component whose suction pressure has reached a threshold value is a good product,
Only the parts determined to be non-defective in the non-defective product determination process are picked up and held by the robot arm, and the parts are taken out from the parts supply table.
Place the parts that are attracted and held by the robot arm in the installation part of the insert member in the mold,
A method for manufacturing an insert-molded product, in which a resin is injected into a mold to produce an insert-molded product in which the resin and components are integrated.   On the component supply table, a pallet having a positioning member is arranged in the component arrangement area, and the non-defective product determination process is performed on the component in a state where the positioning member and the component are engaged and positioned in the horizontal direction. The method for producing an insert-molded product according to claim 8.   In the non-defective product determination process, at least the central region of the back surface of the component and the part including the both end edge regions with respect to the central region are sucked, and the component whose suction pressure reaches the threshold value at all the suction points is determined to be a good product. The method for manufacturing an insert-molded article according to claim 9.   The method for manufacturing an insert-molded product according to claim 9, wherein in the non-defective product determination process, the component is sucked in an area of at least half of the total area of the back surface of the component, and the component whose suction pressure has reached the threshold is determined as non-defective.   On the component supply table, the first and second pallets are disposed adjacent to each other, the first pallet is positioned at the component take-out position, and the robot arm takes out the components disposed on the first pallet. The insert molding according to any one of claims 9 to 11, wherein the second pallet is positioned at the part placement position and the parts are placed and placed on the second pallet. Product manufacturing method.   On the component supply table, the first and second pallets are arranged adjacent to each other, and the non-defective product determination process is performed in a state where the pallet is positioned at the component arrangement position where the components are arranged and supplied on the pallet. Only the pallet on which a part that has been executed and determined to be non-defective is placed is moved from the part placement position to the part pick-up position, and the parts placed on the pallet are picked up by the robot arm at the part pick-up position. The method for manufacturing an insert-molded product according to any one of claims 9 to 11.   The method for manufacturing an insert-molded product according to any one of claims 8 to 13, wherein the back surface of the insert component is a flat surface.

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