JP2007261905A - Molded article carry out method and molded article carry out system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the property to carry out molded articles without providing various suction members with detecting means at the time of simultaneously carrying out a plurality of the molded articles from molding equipment by a carrying out apparatus equipped with a plurality of the suction members. <P>SOLUTION: The molded article carrying out method includes a first process of simultaneously sucking the plurality of the molded articles placed on a first mold 412 by a first conveyance device 200a equipped with a plurality of suction members 240 corresponding to the arrangement of the first mold 412, and equipped with a suction mechanism simultaneously sucking the plurality of the molded articles by automatically adjusting the suction force supplied to the suction member not held in tight contact with the molded article 500, a second process of taking the plurality of the molded articles sucked in the first process out of the optical element molding equipment 400, conveys the same to a placing device 300 by the first conveyance device and simultaneously placing the plurality of the conveyed and molded articles on the placing device, and a third process of detecting the placing conditions of the molded articles on the placing device by the detecting means 340 of the placing device equipped with the placing surface 310 of the plurality of the conveyed and molded articles. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a molded product carrying method and a molded product carrying system.

  As a method for manufacturing an optical element such as a lens, precision press molding is known in which an optical element is molded by placing a preformed material such as a preform on a press mold and pressing it in a heat-softened state. Precision press molding can be used to form an optical functional surface with an aspherical surface or fine pattern, since it can be molded with a desired shape with high precision without requiring post-processing such as grinding and polishing of the optical functional surface of the lens. Preferably used.

  In a precision press molding lens manufacturing facility, a plurality of preforms are supplied to a lens molding apparatus having a plurality of molding dies, and simultaneously heated and softened to form a plurality of lenses in one manufacturing process. After being gradually heated, it is unloaded from the molding device as a molded product. In the step of carrying out a molded product, generally, for the purpose of improving the efficiency of the manufacturing process, a carry-out device including a plurality of adsorbing members that adsorb a plurality of molded products to each other is used.

  The carry-out device includes a plurality of suction members arranged so as to correspond to the arrangement configuration of the molding die on the molding device. First, a plurality of molded products placed on the molding die (usually the lower die) are provided with a plurality of suction members. With the adsorbing member in close contact, a suction force is supplied to the adsorbing member from a vacuum source provided separately or separately to adsorb the molded product to the adsorbing member. Next, the carry-out device takes out the molded product from the mold while the molded product is adsorbed by the adsorption member, and simultaneously carries out a plurality of molded products from the molding device. By carrying out a plurality of molded products simultaneously from the molding device by the carrying-out method using such a carrying-out device, the efficiency of the carrying-out process and thus the manufacturing process is realized as disclosed in Patent Document 1 below.

Japanese Patent Laid-Open No. 5-116959

  However, between the molded product placed on the mold and the suction member, due to the placement error of the mold or suction member, the installation error of the molding device or the unloading device, or the molding error of the molded product itself, In general, horizontal and vertical arrangement errors are likely to occur. In addition, the mold is composed of a pair of upper and lower molds, and the molded product pressed by the mold is usually released while placed on the lower mold, but depending on the conditions of the molding process In some cases, the mold is released while attached to the upper mold.

  On the other hand, in a conventional carry-out device, generally, a plurality of suction members provided in the carry-out device are composed of at least two or more suction members, one vacuum source, and at least two or more suction members as a vacuum source. One or a plurality of operating systems are formed, each of which is connected to a suction tube that supplies a suction force from a vacuum source to each suction member.

  Accordingly, when the vacuum source of the operating system is operated in a state where at least one or more of the adsorbing members of one operating system is not in close contact with the molded product, the suction force is applied from the vacuum source to the adsorbing member. In some cases, a sufficient atmosphere cannot be secured in the inside of the suction pipe for supplying the gas, that is, in the operating system, and a vacuum atmosphere cannot be formed. For this reason, in this operating system, suction force cannot be supplied to any adsorbing member constituting the operating system, and the molded product cannot be adsorbed to the adsorbing member, so that part or all of the molded product is molded. There was a problem of being left behind in the mold.

  As a result, the molded product left in the mold needs to be removed from the mold by repeating the unloading process by the unloading device again or by manually interrupting the manufacturing process. May interfere with efficiency improvement. Also, in the unloading process, it is necessary to reliably unload all molded products from the molding equipment in preparation for the subsequent manufacturing process. Therefore, the unloading status of the molded products is monitored and unloaded as necessary. In order to assist the carrying-out operation by the apparatus, it becomes necessary to temporarily interrupt the manufacturing process, and the interruption of the manufacturing process may be a significant obstacle in realizing full automation of the manufacturing process.

  In order to solve such a problem, an opening / closing means (for example, a supply switching valve) that opens and closes a suction force supply path and a detection that detects the action state of the suction force in each of a plurality of suction members provided in the carry-out device. Means (for example, a pressure sensor) are provided, and a device for ensuring hermeticity in the operating system has been devised by controlling the opening and closing means according to the detection result by the detection means. However, since it is necessary to provide an opening / closing means and a detection means for each suction member, the structure of the carry-out device becomes complicated, or the vacuum source is supplied according to the number of suction members constituting one operating system. There is a problem that it is necessary to adjust the suction force.

  The present invention has been made in view of the above-described problems, and its object is to provide detection means for each suction member when a plurality of molded products are simultaneously carried out from the molding apparatus by a carry-out device having a plurality of suction members. It is an object of the present invention to provide a new and improved method for carrying out a molded product and a molded product carrying system capable of improving the carry-out property of the molded product without providing.

  According to the first aspect of the present invention, a plurality of molded products press-molded by an optical element molding apparatus including a plurality of first molds and a plurality of second molds corresponding to the arrangement of the first molds are obtained. There is provided a method for carrying out a molded product that is carried out simultaneously from a molding apparatus.

  The molded product carrying-out method according to the present invention includes a plurality of suction members corresponding to the arrangement of the first mold, and automatically adjusts the suction force supplied to the suction members not in close contact with the molded product. The first conveyance device having an adsorption mechanism capable of simultaneously adsorbing the molded articles of the first and second molds, the first process of simultaneously adsorbing a plurality of molded articles placed on the first mold, and the first process A second step of taking out a plurality of molded products from the optical element molding device, transporting the molded products to the mounting device by the first transport device, and simultaneously mounting the transported molded products on the mounting device; And a third step of detecting the placement status of the molded product on the placement device by means of the detection device of the placement device having a plurality of placement surfaces corresponding to the arrangement of the first molded product delivery method. Including.

  According to such a first molded product carry-out method, in the first step, a plurality of molded products placed on the first mold are adsorbed by the adsorption mechanism of the first conveying device. In the second step, the plurality of adsorbed molded products are taken out from the molding device, transported to the mounting device by the first transport device, and placed on the mounting device at the same time. In the third step, the placement state of the molded product on the placement device is detected by the detection means. Here, by automatically adjusting the suction force supplied to the suction member that is not in close contact with the molded product, a plurality of molded products that are in close contact with the suction member are simultaneously suctioned and taken out of the molding apparatus. Then, the remaining state of the molded product on the molding device is recognized by detecting the mounting status of the molded product on the mounting device. As a result, each suction member is provided with a detection means (which generally requires a suction member having a complicated structure) to detect the suction state of the molded product, and without controlling the operation of the suction mechanism and the transport device, Only the molded products that are in close contact with each other can be taken out at the same time, and the remaining of the molded product on the molding apparatus can be recognized. Therefore, when a plurality of molded products are simultaneously carried out from the molding apparatus by the carry-out device provided with the plurality of suction members, it is possible to improve the carry-out property of the molded products without providing detection means for each suction member. Furthermore, it is not necessary to temporarily interrupt the manufacturing process in order to monitor the unloading status of the molded product and to assist the unloading operation by the conveying device as necessary, and it is easy to realize the automation of the manufacturing process.

  Further, the molded product carrying-out method according to the present invention is a molded product carrying-out method that is further performed when a placement surface on which a molded product is not placed is detected in the third step. An adsorption mechanism that can adsorb one or more molded articles at the same time by automatically adjusting the suction force supplied to the adsorption members that are not in close contact with the molded article. A fourth step of simultaneously adsorbing one or a plurality of molded articles left in the second mold by the second conveying device provided; and an optical element molding of the one or more molded articles adsorbed in the fourth step A fifth step of taking out from the apparatus and simultaneously adsorbing from the second conveyance device to the adsorption mechanism of the first conveyance device, and one or a plurality of molded articles adsorbed in the fifth step are loaded by the first conveyance device. One or more moldings that have been transferred to the transfer device A second step of unloading the molded product including a sixth step of simultaneously mounting the product on the mounting device and a seventh step of detecting the mounting status of the molded product on the mounting device by the detecting means of the mounting device. A method may be included.

  According to this second molded product carrying-out method, in the fourth step, one or a plurality of molded products left in the second mold are adsorbed by the adsorption mechanism of the second transport device. In the fifth step, the sucked one or a plurality of molded products are taken out from the molding device and sucked from the second transport device to the suction mechanism of the first transport device. In the sixth step, the sucked one or more molded products are transported to the mounting device by the first transport device and are simultaneously mounted on the mounting device. In the seventh step, the placement state of the molded product on the placement device is detected by the detection means. Thus, as in the first method of carrying out the molded product, a detection means is provided for each suction member to detect the suction status of the molded product, and it is in close contact with the suction member without controlling the operation of the suction mechanism and the conveying device. Only the molded product that has been processed can be taken out at the same time, and the remaining of the molded product on the molding apparatus can be recognized. Therefore, it is not necessary to temporarily monitor the manufacturing process in order to monitor the unloading status of the molded product and to assist the unloading operation by the transfer device as necessary, and the molding placed on the first mold. Automating the unloading process including not only the product but also the molded product left in the second mold makes it easy to realize full automation of the manufacturing process.

  Further, according to the second aspect of the present invention, a plurality of molded products press-molded by an optical element molding apparatus having a plurality of first molds and a plurality of second molds corresponding to the arrangement of the first molds, A molded product unloading system for simultaneously unloading from an optical element molding apparatus is provided.

  The molded product carry-out system according to the present invention includes a plurality of suction members corresponding to the arrangement of the first mold, and automatically adjusts the suction force supplied to the suction members that are not in close contact with the molded product. A first mechanism for simultaneously sucking a plurality of molded products placed on the first mold, taking them out of the optical element molding device, and simultaneously transporting and placing them on the placement device. And a mounting device including a plurality of mounting surfaces corresponding to the arrangement of the first mold, and detection means capable of detecting the mounting status of the molded product on the mounting device. According to such a molded product carry-out system, the first molded product carry-out method as described above can be realized.

  In addition, the molded product carry-out system according to the present invention includes a plurality of suction members corresponding to the arrangement of the first mold, and automatically adjusts the suction force supplied to the suction members that are not in close contact with the molded product. , It has an adsorption mechanism that can adsorb one or more molded products at the same time, adsorb one or more molded products left on the second mold at the same time, take it out from the optical element molding device, and transport it to the mounting device at the same time. You may make it further contain the 2nd conveying apparatus to mount. According to such a molded product carry-out system, the second molded product carry-out method as described above can be realized.

  The suction mechanism of the transport device according to the molded product unloading system includes at least two suction members each having a plurality of suction members each having a suction plate for sucking and fixing the molded product and an adjusting means connected to the suction plate. And a first vacuum source and at least two suction members connected to the first vacuum source to supply suction force from the first vacuum source to each suction member. It is configured to form one or a plurality of operating systems, and in each operating system, the adjusting means provided in each suction member automatically applies the suction force supplied to the suction member not in close contact with the molded product. You may make it have the function to adjust.

  According to such a suction mechanism, the first vacuum source of the operating system is operated in a state where the suction plate of at least one suction member among the plurality of suction members forming one operating system is not in close contact with the molded product. Even in this case, in the suction member that is not in close contact with the molded product, the adjusting means connected to the suction plate operates so as to automatically adjust the suction force supplied to the suction member. As a result, in the inside of the suction pipe that supplies the suction force from the first vacuum source to the suction member, that is, in the operating system, the sealing property required to maintain the suction property between the suction member and the molded product is achieved. It can be secured. For this reason, in this operating system, the suction member in a state in which the suction plate is in close contact with the molded product is supplied with sufficient suction force from the first vacuum source via the suction pipe, and is in close contact with the suction plate. It is possible to adsorb the molded product in Therefore, each adsorbing member is provided with a detecting means (generally requiring an adsorbing member having a complicated structure) to detect the adsorbing state of the molded product, and to closely adhere to the adsorbing member without controlling the operation of the adsorbing mechanism and the conveying device. Only the molded product that has been processed can be taken out at the same time.

  Furthermore, the mounting device according to the molded product carry-out system is provided with a plurality of mounting surfaces for mounting one or a plurality of molded products simultaneously transported by the first or second transport device, and on the mounting surface. A suction hole that is blocked by the molded product placed thereon, a second vacuum source that is connected to a ventilation hole that communicates the plurality of suction holes with each other, and that supplies a suction force to the suction hole; You may make it provide the detection means which can detect the mounting condition of the molded article on a mounting apparatus by detecting the pressure in a pore.

  According to such a mounting device, when the second vacuum source supplies a suction force to the suction hole through the vent hole in a state where the molded product is mounted on all the mounting surfaces, a negative pressure is generated in the vent hole. Arise. And the detection means connected to the vent hole detects the occurrence of negative pressure, so that the placement of the molded product on the placement device can be detected. Therefore, each suction member is provided with a detecting means (generally requiring a suction member having a complicated structure) to detect the suction state of the molded product, and without controlling the operation of the suction mechanism and the conveying device. It is possible to recognize the leftover of the molded product.

  As described above, according to the present invention, when a plurality of molded products are simultaneously carried out from a molding apparatus by a conveying device provided with a plurality of suction members, the molded products can be carried out without providing a detection means for each suction member. It is possible to provide a molded article carrying method and a molded article carrying system that can improve the performance.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present specification and drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a perspective view showing a conveyance device 200 (200a) of a molded product carrying system 100 according to an embodiment of the present invention, together with a lens molding device 400 (400a, 400b). FIG. 2 is a perspective view showing the conveying device 200 (200a) and the placing device 300 of the molded product carrying system 100 according to the embodiment of the present invention.

  The molded product carry-out system 100 according to the present embodiment includes a lens molding device 400 including a plurality of press molds 410 each having a pair of first mold 412 and second mold 414 as shown in FIG. A plurality of molded products 500 formed by heating and softening and pressing a preformed material such as a preform disposed between the first mold 412 and the second mold 414 of the molding die 410 are simultaneously carried out from the molding device 400. System.

  Here, for example, as shown in FIG. 1, the molding apparatus 400 is arranged in a plane so as to be composed of 6 rows in the first direction and 3 rows in the second direction orthogonal to the first direction. Eighteen molds 410 including a first mold 412 and a second mold 414 are provided, and a molded product 500 is molded from a preform placed on each mold 410.

  The molding apparatus 400 includes a barrel mold 420 that separates and holds the respective molds 410, and first and second pressure plates 432 and 434 that hold and pressurize the plurality of first molds 412 and second molds 414, respectively. With. The first mold 412 and the second mold 414 of each mold 410 are arranged to face each other, and an optical function transfer surface to be transferred to the preform is formed on each facing surface. Further, the molding apparatus 400 includes a heater (not shown) that simultaneously heat-softens a plurality of preforms placed on the mold 410 and a pressure mechanism (not-shown) that simultaneously press-molds the plurality of preforms in a heat-softened state. As shown).

  The molded product carry-out system 100 according to the present embodiment includes an adsorption mechanism that can simultaneously adsorb a plurality of molded products 500, and a plurality of molded products 500 placed on the first mold 412 are adsorbed by the adsorption mechanism. The first conveying device 200a that is taken out from the first conveying device 200 and simultaneously conveyed, and the placing device 300 that places a plurality of molded products 500 that are simultaneously conveyed by the first conveying device 200a.

  Here, for example, as shown in FIG. 2, the conveying device 200 and the placement device 300 are arranged in six rows in the first direction, the first device 300 so as to correspond to the arrangement configuration of the molding die 410 provided in the molding device 400. Each of the eighteen suction members 240 and the placement surface 310 are arranged in a plane in three rows in a second direction orthogonal to the direction.

  The transport apparatus 200 includes a holding unit 210 that integrally holds a plurality of suction members 240 and a movable arm 220 that is movable in the horizontal and vertical directions, and operates the suction member 240 and the movable arm 220 respectively. The adsorption mechanism of the conveying device 200 includes at least two adsorption members 240 each having a plurality of adsorption members 240 each having an adsorption plate 242 for adsorbing and fixing the molded product 500 and an adjusting unit connected to the adsorption plate 242. And a first vacuum source 260 and at least two suction members 240 connected to the first vacuum source 260 to supply suction force from the first vacuum source 260 to each suction member 240. An adsorbing member which is configured to form one or a plurality of operating systems 230 each formed from the pipe 250, and in which the adjusting means provided in each adsorbing member 240 is not in close contact with the molded product 500 in each operating system 230. It has a function of automatically adjusting the suction force supplied to 240.

  The adsorbing member 240 has a shape exhibiting high adhesion with the molded product 500 and includes an adsorbing plate 242 attached to the tip of the adsorbing member 240, and the adsorbing plate 242 is adhered to the molded product 500. In this state, the molded product 500 is adsorbed by the suction force supplied from the first vacuum source 260 through the suction pipe 250. The suction plate 242 is formed of a material having both flexibility and flexibility, such as silicon, for example, in order to maintain the adhesiveness with the molded product 500 and the shape of the suction plate 242 itself.

  Here, for example, a fluid valve 270, which will be described later, is used as the adjusting means, but the adjusting means is not limited to such means. Depending on the above, other means that can ensure the sealing performance required for maintaining the adsorptivity between the adsorbing member 240 and the molded product 500 in the operating system 230 may be used. Here, as the first vacuum source 260, for example, a vacuum generator or a vacuum pump provided together with or separately from the transfer device 200 is used.

  The mounting device 300 is closed by a plurality of mounting surfaces 310 that respectively mount a plurality of molded products 500 that are simultaneously transported by the transport device 200, and a molded product 500 that is provided on and placed on the mounting surface 310. A second vacuum source 350 that is connected to a suction hole 320 that connects the plurality of suction holes 320 to each other and supplies a suction force to the suction hole 320, and is connected to the ventilation hole 330. And detecting means capable of detecting the mounting state of the molded product 500 on the mounting apparatus 300 by detecting the pressure.

  Here, for example, a pressure sensor 340 or the like is used as the detection means, but the detection means is not limited to such means, and it is possible to detect the pressure in the vent hole 330 that changes according to the closed state of the suction hole 320. Other means that can be used may be used. In addition, as the second vacuum source 350, for example, a vacuum generator or a vacuum pump provided together with or separately from the mounting apparatus 300 is used.

  Note that the molded product unloading system 100 according to the present embodiment includes an adsorption mechanism capable of simultaneously adsorbing a plurality of molded products 500, and presses the plurality of molded products 500 left on the second mold 414 by the adsorption mechanism. A second transfer device 200b (not shown) that is removed from the mold 410 and simultaneously transferred is further provided.

  Here, the second transport device 200b includes components having the same functional configuration as the first transport device 200a except that the suction member 240 is provided so as to face the second mold 414.

  FIG. 3 is a cross-sectional view showing the adsorbing member 240 provided in the conveying device 200 of the molded product carrying system 100 according to the embodiment of the present invention.

  The suction member 240 provided in the transport apparatus 200 according to the present embodiment is connected to the suction plate 242 for tightly fixing the molded product 500 and the suction plate 242, and is connected from the first vacuum source 260 through the suction pipe 250. A fluid valve 270 for adjusting the suction force supplied to the suction member 240, and a filter unit 244 for removing foreign matter mixed in the suction fluid is selectively provided between the suction plate 242 and the fluid valve 270. .

  The fluid valve 270 is disposed between the suction plate 242 and the suction pipe 250 and is provided on the side of the suction plate 242 that is two contiguous cavities having different inner diameters concentrically. A first cavity portion 284 that accommodates the elastic member 282, and a second cavity portion that is provided on the suction tube 250 side with an inner diameter smaller than the inner diameter of the first cavity portion 284 and communicates the first cavity portion 284 with the suction tube 250. 286 with a valve body 280.

  The valve body 290 accommodated in the first cavity portion 284 includes a first valve body portion 290a disposed on the suction plate 242 side and having an outer diameter corresponding to the inner diameter of the first cavity portion 284, and the first valve body portion 290a. The second and third valve body portions 290b and 290c have an outer diameter smaller than the outer diameter and larger than the inner diameter of the second cavity 286. Further, the valve body 290 has a concentric through hole 292 that allows the suction plate 242 and the suction pipe 250 to communicate with each other, and the through holes 292 of the first and second valve body portions 290a and 290b serve as the second and third valves. With the inner diameter smaller than the outer diameter of the body parts 290b and 290c, the through hole 294 of the third valve body part 290c has the inner diameter smaller than the inner diameter of the through hole 292 of the first and second valve body parts 290a and 290b, and the second The through hole 292 of the valve body part 290b is formed between the side wall of the second and third valve body parts 290b and 290c and the inner side surface of the first cavity part 284 by a lateral hole 296 provided in the side wall of the second valve body part 290b. It communicates with the space formed between them. The valve body 290 formed to be shorter than the axial length of the first cavity 284 includes the inner wall of the first cavity 284 that forms the boundary between the first cavity 284 and the second cavity 286 and the first valve body 290a. Are elastically supported by an elastic member 282 sandwiched therebetween.

  The valve body 290 is slidably provided in the first cavity 284 while being elastically supported by the elastic member 282, and the adsorbing plate 242 of the adsorbing member 240 is not in close contact with the molded product 500. In this state, each operates as shown in FIGS. 3 (A) and 3 (B).

  In FIG. 3A, the suction plate 242 of the suction member 240 is not in close contact with the molded product 500, and the fluid force of the fluid sucked from the suction plate 242 side is different from that of the second valve body portion 290b of the valve body 290. The valve body 290 acts on the boundary surface with the three-valve body portion 290c, the valve body 290 is pushed toward the suction pipe 250 in the first cavity portion 284, and the top portion of the valve body 290 is the first cavity portion 284 and the second cavity portion 286. It will be in the state which contacted the inner wall of the 1st cavity part 284 which makes a boundary. In such a state, the fluid on the suction plate 242 side is conducted to the suction pipe 250 through the through holes 292 of the first and second valve body portions 290a and 290b and the small through hole 294 of the third valve body portion 290c, Only a very small amount is sucked, and at the same time, a sufficient pressing force acts on the elastic member 282.

  On the other hand, in FIG. 3B, the suction plate 242 of the suction member 240 is in close contact with the molded product 500, and when the fluid in the space between the suction plate 242 and the molded product 500 is sucked, As a result, a vacuum atmosphere is formed and the suction flow rate is reduced. As the suction flow rate decreases, the fluid force acting on the valve body 290 decreases, and the valve body 290 pushed toward the suction pipe 250 side moves toward the suction plate 242 side by the biasing force of the elastic member 282. The valve body 290 is moved back so that the bottom portion of the valve body 290 contacts the filter portion 244, and the top portion of the valve body 290 is separated from the inner wall of the first cavity portion 284. In such a state, the fluid on the suction plate 242 side passes through the through holes 292 of the first and second valve body portions 290a and 290b and the lateral holes 296 provided in the side walls of the second valve body portion 290b, and thereby the second and second fluids. The three valve body parts 290b and 290c are connected to the suction pipe 250 through a space formed between the side walls of the three valve body parts 290b and 290c and the inner side surface of the first cavity part 290a and sucked. As a result, in the space between the suction plate 242 and the molded product 500, a vacuum atmosphere is secured by the suction force, so that the adsorptivity between the suction member 240 and the molded product 500 is maintained.

  According to the adsorption member 240 including the fluid valve 270, the valve body 290 of the fluid valve 270 is connected to the adsorption member 240 and the suction pipe 250 in a state where the adsorption plate 242 of the adsorption member 240 is not in close contact with the molded product 500. In the state where the suction flow rate between the suction member 240 and the molded product 500 is kept in close contact with the molded product 500, the suction flow rate is maintained. Operate. For this reason, at least two or more such suction members 240, one first vacuum source 260, and at least two or more suction members 240 are connected to the first vacuum source 260 from the first vacuum source 260. In an adsorption mechanism having an operation system 230 that includes a suction pipe 250 that supplies a suction force to each adsorption member 240, the fluid valve 270 provided in each adsorption member 240 is in close contact with the molded product 500 within the operation system 230. The suction force supplied to the non-adsorbing member 240 can be automatically adjusted. The transport device 200 can appropriately adjust and maintain the suction force in the operating system 230 according to the suction state of the plurality of suction members 240 and the molded product 500 in the operating system 230.

  FIG. 4 is a diagram illustrating a method for carrying out a molded product according to an embodiment of the present invention. 4A (B) to FIG. 4A (E) are the constituent elements not shown in FIG. 4A and the constituent elements shown in FIG. 4 (A) are the same as those shown in FIG. 4B (G) to FIG. The components not denoted by reference numerals in FIG. 4 correspond to the components denoted by reference numerals in FIG.

  Here, FIG. 4A and FIG. 4B show a first molded product unloading method for unloading the molded product 500 placed on the first mold 412 and a second unloading the molded product 500 left in the second mold 414. Each method of carrying out the molded product is shown. The method for carrying out a molded product according to the present embodiment will be described step by step with reference to FIG.

  FIG. 4A shows a molding apparatus 400 composed of a plurality of molding dies 410 each provided with a pair of first mold 412 and second mold 414, and a first conveying apparatus 200a constituting the molded product delivery system 100 according to the present embodiment. And the mounting device 300. Although not shown in FIGS. 4A and 4B, the molding die 410 of the molding apparatus 400, the suction member 240 of the transport apparatus 200, and the mounting surface 310 of the mounting apparatus 300 are the same as those in FIGS. Each has an arrangement (in the second direction of FIGS. 1 and 2).

(First step)
In FIG. 4A, the first transport device 200a is movable so that the holding unit 210 including the plurality of suction members 240 is disposed between the first mold 412 and the second mold 414 of the molding die 410. The arm 220 is operated. Here, the first transport device 200a horizontally holds the holding unit 210 so that the central axes of the plurality of suction members 240 are substantially collinear with the central axis of the first mold 412 corresponding to each arrangement configuration. The movable arm 220 is actuated.

  In FIG. 4B, the first transfer device 200a operates the movable arm 220 so as to lower the first mold 412 while holding the holding unit 210 horizontally, and the suction plates 242 of the plurality of suction members 240. Are closely attached to the molded product 500 corresponding to each arrangement configuration. Then, the first transport device 200a operates the first vacuum source 260 in a state where the suction plates 242 of the plurality of suction members 240 are in close contact with the molded product 500 corresponding to each arrangement configuration. The molded product 500 is attracted to the suction member 240 by the suction force supplied from the vacuum source 260 through the suction tube 250.

  Here, in the molding die 410 at the right end of the molding apparatus 400 shown in FIG. 4B, the molded product 500 is not placed on the first die 412 but attached to the second die 414. Therefore, the first vacuum source 260 of the operating system 230 including the suction member 240 is operated in a state where the suction plate 242 of the suction member 240 corresponding to the molding die 410 is not in close contact with the molded product 500. As described above, the fluid valve 270 connected to the suction plate 242 operates so as to automatically adjust the suction force supplied to the suction member 240. Thereby, in the said operation system 230, the airtightness required in order to maintain the adsorptivity of the adsorption member 240 and the molded article 500 in the said operation system 230 is ensured. Therefore, a sufficient suction force is supplied to the other suction members 240 in which the suction plate 242 is in close contact with the molded product 500, so that the molded product 500 that is in close contact with the suction plate 242 can be attracted to each other. it can.

(Second step)
In FIG. 4C, the first transport device 200a is movable so as to raise the holding unit 210 above the first mold 412 in a state where the molded product 500 is adsorbed by the plurality of adsorbing members 240 by suction force. The arm 220 is actuated, and the movable arm 220 is actuated so that the holding unit 210 is disposed above the placement device 300. Here, the first transport device 200a horizontally holds the holding unit 210 so that the central axes of the plurality of molded products 500 are substantially collinear with the central axis of the mounting surface 310 corresponding to each arrangement configuration. The movable arm 220 is actuated.

  In FIG. 4D, the first transfer device 200a operates the movable arm 220 so that the holding unit 210 is lowered onto the placement surface 310 while being held horizontally. Then, the plurality of molded products 500 are seated on the suction holes 320 of the mounting surface 310 corresponding to each arrangement configuration, the first vacuum source 260 is stopped, and the suction tube 250 is connected from the first vacuum source 260. Then, the suction force supplied to the suction member 240 is released, and the molded product 500 is detached from the suction member 240.

(Third step)
In FIG. 4E, the first transport device 200a operates the movable arm 220 so that the holding unit 210 is disposed above the placement device 300. On the other hand, the mounting device 300 supplies suction force to all the suction holes 320 from the second vacuum source 350 through the vent holes 330. Here, except for the placement surface 310 at the right end of the placement device 300, the suction holes 320 provided in each placement surface 310 are closed by the molded product 500 placed thereon, but the placement surface at the right end. The suction hole 320 provided in 310 is not closed. For this reason, even if a suction force is supplied from the second vacuum source 350 to all the suction holes 320, a sufficient negative pressure is not generated in the vent holes 330, and the molded product carry-out system 100 passes through the pressure sensor 340. By detecting the pressure in the pores 330, the mounting status of the molded product 500 on the mounting device 300 can be detected.

  When the presence of the placement surface 310 on which the molded product 500 is not placed is not detected in the third step, the molded product carry-out system 100 detects the generation of a sufficient negative pressure in the vent hole 330. If it is detected at 340, the completion of the unloading process can be recognized. On the other hand, when the molded product unloading system 100 detects the presence of the placement surface 310 on which the molded product 500 is not placed in the third step, it recognizes the remaining of the molded product on the molding device, and The 2nd molded article carrying-out method which consists of a 4th-7th process is implemented. FIG. 4B shows the molding device 400, the first and second transport devices 200a and 200b, and the mounting device 300 that constitute the molded product carry-out system 100 according to the present embodiment.

(Fourth process)
In FIG. 4F, the second transport device 200b is movable so that the holding portion 210 including the plurality of suction members 240 is disposed between the first mold 412 and the second mold 414 of the molding die 410. The arm 220 is operated. Here, the second transport device 200b holds the holding unit 210 horizontally so that the central axes of the plurality of suction members 240 are substantially collinear with the central axis of the second mold 414 corresponding to each arrangement configuration. The movable arm 220 is actuated.

  In FIG. 4G, the second transport device 200b operates the movable arm 220 so that the second mold 414 approaches the second mold 414 while holding the holding unit 210 horizontally, so that the suction plates 242 of the plurality of suction members 240 are moved. The molded product 500 corresponding to each arrangement configuration is closely attached. Then, the second transport device 200b operates the first vacuum source 260 in a state where the suction plates 242 of the plurality of suction members 240 are in close contact with the molded product 500 corresponding to each arrangement configuration. The molded product 500 is attracted to the suction member 240 by the suction force supplied from the vacuum source 260 through the suction tube 250.

  Here, the molded product 500 is not left behind in the second mold 414 except for the molding die 410 at the right end of the molding apparatus 400 shown in FIG. For this reason, the fluid valve 270 operates in the same manner as in the first step described above, and is required in the operation system 230 to maintain the adsorptivity between the adsorption member 240 and the molded product 500 in the operation system 230. The adsorbing member 240 in a state in which the sealing performance is secured and the adsorbing plate 242 is in close contact with the molded product 500 is supplied with a sufficient suction force so that the adhering molded product 500 adhering to the adsorbing plate 242 is adsorbed. be able to.

(Fifth step)
In FIG. 4H, the second conveying device 200b is movable so as to lower the holding portion 210 below the second mold 414 in a state where the molded product 500 is adsorbed to the plurality of adsorbing members 240 by suction force. The arm 220 is actuated, and the movable arm 220 is actuated so that the holding unit 210 is disposed above the placement device 300. Here, the first conveyance device 200a is arranged in advance above the placement device 300, and the second conveyance device 200b is arranged such that the central axis of the suction member 240 of the second conveyance device 200b is arranged in each. The movable arm 220 is operated so as to hold the holding unit 210 horizontally so as to be substantially collinear with the central axis of the suction member 240 of the first transfer device 200a corresponding to the configuration. Then, the first transfer device 200a activates the first vacuum source 260, and the second transfer device 200b stops the first vacuum source 260, so that the first transfer device 200a can adsorb itself. The molded product 500 is adsorbed on the member 240.

(Sixth step)
In FIG. 4I, the second transport device 200 b operates the movable arm 220 so that the holding unit 210 is separated from the upper side of the placement device 300. On the other hand, the first transport device 200a operates the movable arm 220 so that the holding unit 210 is lowered onto the placement surface 310 while being held horizontally. Then, the plurality of molded products 500 are seated on the suction holes 320 of the mounting surface 310 corresponding to each arrangement configuration, the first vacuum source 260 is stopped, and the suction tube 250 is connected from the first vacuum source 260. Then, the suction force supplied to the suction member 240 is released, and the molded product 500 is detached from the suction member 240.

(Seventh step)
In FIG. 4J, the first transfer device 200a operates the movable arm 220 so that the holding unit 210 is disposed above the placement device 300. On the other hand, the mounting device 300 supplies suction force to all the suction holes 320 from the second vacuum source 350 through the vent holes 330. Here, all the mounting surfaces 310 of the mounting device 300 are closed by the molded products 500 on which the suction holes 320 provided on the mounting surfaces 310 are mounted. For this reason, when a suction force is supplied from the second vacuum source 350 to all the suction holes 320, a sufficient negative pressure is generated in the vent holes 330, and the molded product carry-out system 100 uses the pressure sensor 340 to vent the vent holes. By detecting the pressure in 330, it is possible to detect the placement state of the molded product 500 on the placement device 300. Here, the molded product unloading system 100 determines that the unloading process has been completed without any problem.

  The molded product carry-out system 100 according to the embodiment of the present invention has been described above. The molded product carry-out system 100 includes a plurality of suction members 240 corresponding to the arrangement of the first mold 412, and automatically adjusts the suction force supplied to the suction members 240 that are not in close contact with the molded product 500. , A first step of simultaneously adsorbing a plurality of molded products 500 placed on the first mold 412 by a first conveying device 200a having an adsorption mechanism capable of adsorbing the plurality of molded products 500 simultaneously; The plurality of molded products 500 adsorbed in the above process are taken out from the molding apparatus 400 and are transported to the mounting device 300 by the first transport device 200a, and the transported molded products 500 are simultaneously mounted on the mounting device 300. The molded product 500 on the mounting apparatus 300 is detected by the detection means (pressure sensor 340) of the mounting apparatus 300 provided with a plurality of mounting surfaces 310 corresponding to the arrangement of the first mold 412 and the second step. And a third step of detecting a placement status, and.

  According to the molded product carry-out system 100, in the first step, the plurality of molded products 500 placed on the first mold 412 are adsorbed by the adsorption mechanism of the first conveyance device 200a. In the second step, the plurality of adsorbed molded articles 500 are taken out from the molding apparatus 400, conveyed to the mounting apparatus 300 by the first conveying apparatus 200a, and simultaneously mounted on the mounting apparatus 300. In the third step, the placement state of the molded product 500 on the placement device 300 is detected by the detection means (pressure sensor 340). Here, by automatically adjusting the suction force supplied to the suction member 240 that is not in close contact with the molded product 500, a plurality of molded products 500 that are in close contact with the suction member 240 are simultaneously suctioned, and the molding apparatus 400 is taken out. Then, the remaining state of the molded product 500 on the molding device 400 is recognized by detecting the mounting status of the molded product 500 on the mounting device 300. As a result, each suction member 240 is provided with detection means (which generally requires a suction member having a complicated structure) to detect the suction state of the molded product 500 and control the operation of the suction mechanism and the first transport device 200a. At least, only the molded product 500 that is in close contact with the adsorbing member 240 can be taken out at the same time, and the remaining of the molded product 500 on the molding device 400 can be recognized. Therefore, when the plurality of molded products 500 are simultaneously carried out from the molding apparatus 400 by the first carry-out device 200a provided with the plurality of suction members 240, the carry-out property of the molded products 500 can be provided without providing each suction member 240 with a detection means. Can be improved.

  As mentioned above, although preferred embodiment of this invention was described referring an accompanying drawing, this invention is not limited to the example which concerns. It is obvious for those skilled in the art that various changes or modifications can be conceived within the scope of the technical idea described in the claims. It is understood that it belongs to.

  In the above embodiment, the case where the preform is arranged on the first mold (lower mold) 412 of the mold 410 and is pressed by the movable second mold (upper mold) 414 has been described. However, the present invention is not limited to such a case, and can be applied to a case where pressing is performed by the movable second mold 414 or the movable first and second molds 412 and 414, for example. In the embodiment, the configuration of the molding die 410 is described as the first die 412 as the lower die and the second die 414 as the upper die, but the application of the present invention is not limited to this case. , Can also be applied to the case of having the reverse configuration.

  In the above-described embodiment, the case where the double-sided convex molded product 500 is carried out has been described. However, the application of the present invention is not limited to this case. For example, the double-sided concave shape or one surface is concave and the other surface is When carrying out the convex molded product 500 ′, the suction plate 242 of the transport device 200 and the mounting surface 310 of the mounting device 300 each have a shape suitable for the contact surface with the molded product 500 ′. Can be applied as well.

  Further, in the above embodiment, the description has been made on the assumption that the forming device 400 and the mounting device 300 are installed on a horizontal plane, and the positional relationship of the components and the like is based on the horizontal and vertical directions. thinking. However, the application of the present invention is not limited to such a case. For example, when the molding apparatus 400 and the mounting apparatus 300 are installed on an inclined surface, the positional relationship of components and the like is not limited. It can also be applied to such cases by understanding it in consideration of the conditions of the installation reference plane.

  In the above-described embodiment, the case where the first transfer device 200a and the second transfer device 200b are separately configured has been described. However, the application of the present invention is not limited to this case. For example, the molded product 500 placed on the first mold 412 and the molded product 500 left on the second mold 414 using a single transport device having a suction mechanism that can switch the suction direction of the suction member 240. In the case of using a system configuration that makes it possible to adsorb, it is understood that the carrying-out method and the carrying-out system use a single carrying device, and this case can also be applied.

It is a perspective view which shows the conveying apparatus of the molded article delivery system which concerns on embodiment of this invention with a lens shaping | molding apparatus. It is a perspective view which shows the conveying apparatus and mounting apparatus of the molded article carrying-out system which concern on embodiment of this invention. It is sectional drawing which shows the adsorption | suction member with which the conveying apparatus of the molded article carrying-out system which concerns on embodiment of this invention was equipped. It is a figure which shows the molded product carrying out method (1st molded product carrying out method) which concerns on embodiment of this invention. It is a figure which shows the molded product carrying out method (2nd molded product carrying out method) which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Molded product delivery system 200 Conveyance apparatus 210 Holding part 220 Movable arm 230 Actuation system 240 Adsorption member 242 Adsorption plate 250 Suction pipe 260 First vacuum source 270 Fluid valve 300 Mounting apparatus 310 Mounting surface 320 Suction hole 330 Ventilation hole 340 Pressure sensor 350 Second vacuum source 400 Lens molding device 410 Press mold 412 First mold 414 Second mold 500 Molded product

Claims (6)

Unloading a molded product simultaneously carrying out a plurality of molded products press-molded by an optical element molding apparatus having a plurality of first molds and a plurality of second molds corresponding to the arrangement of the first molds from the optical element molding apparatus A method,
A plurality of adsorbing members corresponding to the arrangement of the first mold are provided, and a plurality of the molded products are adsorbed simultaneously by automatically adjusting the suction force supplied to the adsorbing members not in close contact with the molded product. A first step of simultaneously adsorbing a plurality of the molded products placed on the first mold by a first conveying device having a possible adsorption mechanism;
The plurality of molded articles adsorbed in the first step are taken out from the optical element molding apparatus, conveyed to a mounting apparatus by the first conveying apparatus, and the plurality of molded articles conveyed are set forth in the preceding section. A second step of simultaneously mounting
And a third step of detecting a placement state of the molded product on the placement device by a detection unit of the placement device having a plurality of placement surfaces corresponding to the placement of the first mold. A method for carrying out molded products. In the third step, when the placement surface on which the molded product is not placed is detected, the molded product carrying-out method is further performed,
By providing a plurality of suction members corresponding to the arrangement of the first mold and automatically adjusting the suction force supplied to the suction members that are not in close contact with the molded product, A fourth step of simultaneously adsorbing one or a plurality of the molded articles left in the second mold by a second conveying device having an adsorption mechanism capable of adsorbing simultaneously;
A fifth step of taking out one or a plurality of the molded products sucked in the fourth step from the optical element molding device and simultaneously sucking them from the second transport device to the suction mechanism of the first transport device; ,
The one or more molded articles adsorbed in the fifth step are transported to the placement apparatus by the first transport device, and the transported one or more molded products are simultaneously placed on the placement apparatus. A sixth step,
The molded product carrying-out method according to claim 1, further comprising: a seventh step of detecting a mounting state of the molded product on the placement device by the detection means of the placement device. Molding for simultaneously carrying out a plurality of molded products press-molded by an optical element molding apparatus having a plurality of first molds and a plurality of second molds corresponding to the arrangement of the first molds from the optical element molding apparatus An item delivery system,
The molded product unloading system is:
A plurality of adsorbing members corresponding to the arrangement of the first mold are provided, and a plurality of the molded products are adsorbed simultaneously by automatically adjusting the suction force supplied to the adsorbing members not in close contact with the molded product. A first transport device having a possible suction mechanism for simultaneously sucking a plurality of the molded products placed on the first mold, taking them out of the optical element molding device, and simultaneously transporting and placing them on the placement device; When,
A placement device including a plurality of placement surfaces corresponding to the arrangement of the first mold, and a detection unit capable of detecting a placement state of the molded product on the placement device. A molded product delivery system.   The molded product unloading system includes a plurality of suction members corresponding to the arrangement of the first mold, and automatically adjusts the suction force supplied to the suction members that are not in close contact with the molded product. Or having an adsorption mechanism capable of simultaneously adsorbing a plurality of the molded articles, simultaneously adsorbing one or a plurality of the molded articles left on the second mold, and taking out from the optical element molding apparatus; 4. The molded product carry-out system according to claim 3, further comprising a second transfer device that is simultaneously transferred and placed.   The adsorption mechanism includes a plurality of adsorption members each including an adsorption plate for adsorbing and fixing the molded product and an adjusting means connected to the adsorption plate. A first vacuum source and at least two or more suction members connected to the first vacuum source to supply suction force from the first vacuum source to the suction members, respectively. The suction system is configured to form one or a plurality of operating systems, and in each of the operating systems, the adjusting means provided in each of the suction members is supplied to the suction member that is not in close contact with the molded product. The molded product carrying system according to claim 3 or 4, characterized by having a function of automatically adjusting the force.   The placement device includes a plurality of placement surfaces on which the one or a plurality of the molded products that are simultaneously conveyed by the first or second conveyance device are placed, and a placement surface provided on the placement surface. A suction hole that is closed by the molded product, a second vacuum source that is connected to a ventilation hole that communicates the plurality of suction holes with each other, and that supplies a suction force to the suction hole, and is connected to the ventilation hole. The molded article according to claim 3 or 4, further comprising: the detection means capable of detecting the mounting state of the molded article on the placement device by detecting the pressure in the vent hole. Unloading system.

Images