Part feeding and extracting apparatus for insert injection molding

Abstract

The present invention relates to a part supply and ejection device for insert injection molding. A part supply and ejection device for insert injection molding according to one embodiment of the present invention is a part supply and ejection device for insert injection molding that supplies an insert to an injection mold and ejects an injection product from the injection mold after injection molding is completed, and is characterized by comprising: an insert supply unit including a plurality of insert gripping units that simultaneously grip a plurality of inserts and supply them to the injection mold, and an insert gripping driving unit that reciprocates the plurality of insert gripping units in an up-and-down direction; and an injection product ejection unit disposed adjacent to the insert supply unit and comprising a plurality of injection product gripping units that simultaneously grip an injection product completed from the injection mold and eject it to the outside, and an injection product gripping driving unit that reciprocates the plurality of injection product gripping units in an up-and-down direction.

Description

Technology Field

[0001] The present invention relates to a part supply and ejection device for insert injection molding, and more specifically, to a part supply and ejection device for insert injection molding that can perform the insert supply process and the injection product ejection process more quickly and accurately with a simpler structure. Background Technology

[0002] Generally, injection molding is a technology that produces a plastic molded product corresponding to a cavity by melting a resin, such as a plastic material, to a suitable flow state, and then injecting it into a mold in which a cavity is formed.

[0003] In particular, insert injection molding is a technology that can obtain a reasonable part structure by combining two materials, for example, plastic and metal. During injection molding, an insert part (hereinafter referred to as an insert) is inserted into the cavity surface beforehand, and then molten plastic is injected. Since the two materials are integrated through injection, it is a method to produce highly reliable parts with good relative positional precision and no loosening or detachment.

[0004] The device used for such insert injection molding (hereinafter, insert injection molding machine) includes a part (insert and injection product) transfer device that supplies the insert to the injection mold and ejects the injection-molded product to the outside.

[0005] For example, Korean Published Patent Application No. 10-2010-0044665 (Automatic insert feeding device for insert injection molding machine) (published April 30, 2010), Korean Registered Patent Application No. 10-1034529 (Automatic insert insert insertion device) (published May 4, 2011), etc. disclose the structure of an insert feeding device equipped in an insert injection molding machine.

[0006] However, conventional insert injection molding part supply and ejection devices had the problem that not only was the structure for supplying inserts to the injection mold and ejecting the finished product from the mold complex, but the processes of supplying the inserts and ejecting the products also required a significant amount of time. In particular, conventional insert injection molding part supply and ejection devices had the problem that the inserts would become misaligned within the injection mold during the supply process, leading to a high defect rate of the products and consequently lowering the efficiency of the injection molding process.

[0007] Therefore, a part feeding and ejection device for insert injection molding is required that can perform the insert feeding process and the injection part ejection process more quickly and accurately with a simpler structure. Prior art literature

[0008] Korean Published Patent Application No. 10-2010-0044665 (Automatic insert feeding device for insert injection molding machine) (Published April 30, 2010) Korean Registered Patent Application No. 10-1034529 (Automatic insert insert insertion device) (Published May 4, 2011) The problem to be solved

[0009] The present invention was developed to improve upon the aforementioned problems. The objective of the present invention is to provide an insert injection molding part supply and ejection device that enables the insert supply process and the injection product ejection process to be performed more quickly with a simpler structure by configuring the insert supply device and the injection product ejection device equipped in the insert injection molding machine into an insert supply unit that simultaneously grasps a plurality of inserts and supplies them to the injection mold, and an injection product ejection unit that simultaneously grasps the injection-molded product from the injection mold and ejects it to the outside.

[0010] The technical problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0011] To achieve the above objective, an insert injection molding part supply and ejection device according to one embodiment of the present invention, which supplies an insert to an injection mold and ejects an injection molded product from the injection mold after the injection molding is completed, is characterized by comprising: an insert supply unit including a plurality of insert gripping units that simultaneously grip a plurality of inserts and supply them to the injection mold, and an insert gripping driving unit that reciprocates the plurality of insert gripping units in an up-and-down direction; and an injection molded product ejection unit disposed adjacent to the insert supply unit, comprising a plurality of injection molded product gripping units that simultaneously grip an injection molded product completed from the injection mold and eject it to the outside, and an injection molded product gripping driving unit that reciprocates the plurality of injection molded product gripping units in an up-and-down direction.

[0012] At this time, each of the plurality of insert gripping parts is arranged spaced apart from each other with each of the plurality of inserts in between, and includes a pair of first gripper bodies that grip or release each of the plurality of inserts by forming a first receiving groove corresponding to both sides of each of the plurality of inserts; a pair of first gripper arms connected to the upper end of each of the pair of first gripper bodies and reciprocatingly driving each of the pair of first gripper bodies toward each of the plurality of inserts; a first gripper driving part connected to the pair of first gripper arms and reciprocatingly driving each of the pair of first gripper arms; and a pair of first anti-detachment guides coupled to the lower end of each of the pair of first gripper bodies and preventing both sides of each of the plurality of inserts inserted into the first receiving groove formed in each of the pair of first gripper bodies from detaching.

[0013] Additionally, each of the plurality of insert gripping parts is installed to be reciprocally movable in the vertical direction between the pair of first gripper bodies and further includes a pusher that moves each of the plurality of inserts released from gripping by the pair of first gripper bodies in a direction toward the injection mold.

[0014] Additionally, each of the plurality of insert gripping portions is provided on each of the pair of first gripper bodies and comprises a pair of heater members for preheating each of the plurality of inserts gripped by the pair of first gripper bodies; and further comprises a pair of insulation blocks disposed between each of the pair of first gripper bodies and the pair of first gripper arms for blocking heat generated from each of the pair of heater members.

[0015] Additionally, the insert gripping drive unit comprises: at least one first drive plate to which the plurality of insert gripping units are coupled; at least one first drive actuator connected to the at least one first drive plate and reciprocatingly driving the at least one first drive plate in an up-and-down direction; and at least one first drive guide unit that guides the up-and-down reciprocating movement of each of the at least one first drive plates.

[0016] Additionally, each of the plurality of injection-molded product gripping parts is arranged spaced apart from each other with each of the plurality of injection-molded products in between, and includes a pair of second gripper bodies that grip or release each of the plurality of injection-molded products by forming a second receiving groove corresponding to both sides of each of the plurality of injection-molded products; a pair of second gripper arms connected to the upper end of each of the pair of second gripper bodies and reciprocatingly driving each of the pair of second gripper bodies toward each of the plurality of injection-molded products; a second gripper driving part connected to the pair of second gripper arms and reciprocatingly driving each of the pair of second gripper arms; and a pair of second anti-detachment guides coupled to the lower end of each of the pair of second gripper bodies and preventing both sides of each of the plurality of injection-molded products inserted into the second receiving groove formed in each of the pair of second gripper bodies from detaching.

[0017] Additionally, the injection molded product gripping drive unit comprises: at least one second drive plate to which the plurality of injection molded product gripping units are coupled; at least one second drive actuator connected to the at least one second drive plate and reciprocatingly driving the at least one second drive plate in an up-and-down direction; and at least one second drive guide unit that guides the up-and-down reciprocating movement of each of the at least one second drive plate.

[0018] Meanwhile, the insert injection molding part supply and ejection device further comprises a base plate having an insert gripping drive unit installed on one side and an injection product gripping drive unit installed on the other side so that the insert supply unit and the injection product ejection unit can move simultaneously.

[0019] In addition, the injection mold is characterized by including a plurality of guide pins that are positioned at a location corresponding to each of the plurality of inserts and have a sloped surface formed at the top facing each of the plurality of inserts supplied by each of the plurality of insert gripping parts, sloping upward.

[0020] Specific details of other embodiments are included in the detailed description and drawings. Effects of the invention

[0021] According to an embodiment of the present invention, the insert supply device and the injection product ejection device equipped in an insert injection molding machine are configured with an insert supply unit that simultaneously grasps a plurality of inserts and supplies them to an injection mold, and an injection product ejection unit that simultaneously grasps an injection product completed from the injection mold and ejects it to the outside, thereby enabling the insert supply process and the injection product ejection process to be performed more quickly with a simpler structure.

[0022] In addition, according to an insert injection molding part supply and ejection device according to one embodiment of the present invention, by configuring the insert gripping portion and the injection part gripping portion to include a pair of gripper bodies corresponding to the shapes of both sides of the insert and the injection part, and a pair of anti-ejection guides that prevent the insert and the injection part gripped by the pair of gripper bodies from escaping, the insert supply process and the injection part ejection process can be performed more accurately and stably.

[0023] In addition, according to an embodiment of the present invention, the insert injection molding part supply and ejection device is provided with a pusher that moves an insert released from gripping by a pair of gripper bodies to an injection mold, thereby enabling the insert supply process to be performed more accurately and stably.

[0024] In addition, according to an embodiment of the present invention, the insert gripping portion is provided with a heater member for preheating an insert gripped by a pair of gripper bodies, so that the insert can be inserted more easily into the injection mold, thereby allowing the injection molding process for the insert to be performed more quickly, thus increasing the efficiency of the injection molding process.

[0025] In addition, according to an insert injection molding part supply and ejection device according to one embodiment of the present invention, when the insert gripping part supplies an insert gripped by a pair of gripper bodies, a guide pin is provided to guide the transfer of the insert to the injection mold, thereby enabling not only to align each of the multiple inserts to an accurate position but also to perform the insert supply process more accurately and stably.

[0026] In addition, according to an embodiment of the present invention, by implementing the main configurations of the insert supply unit and the injection part ejection unit in substantially the same structure, the structure of the entire device can be simplified, as well as the manufacturing and maintenance costs of the device and the manufacturing time can be shortened.

[0027] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims. Brief explanation of the drawing

[0028] FIG. 1 is a perspective view showing a part supply and extraction device for insert injection molding according to one embodiment of the present invention. FIG. 2 is a front view showing the structure of a part supply and extraction device for insert injection molding according to one embodiment of the present invention. FIG. 3 is a bottom view showing the structure of a part supply and extraction device for insert injection molding according to one embodiment of the present invention. FIG. 4 is a perspective view showing the structure of an insert supply unit constituting a part supply and extraction device for insert injection molding according to one embodiment of the present invention. FIG. 5 is a front view showing the structure of an insert supply unit constituting a part supply and extraction device for insert injection molding according to one embodiment of the present invention. FIG. 6 is a perspective view showing the structure of an insert gripping part constituting an insert supply part of an insert injection molding part supply and ejection device according to one embodiment of the present invention. FIG. 7 is an exploded perspective view showing the structure of an insert gripping part constituting an insert supply part of an insert injection molding part supply and ejection device according to one embodiment of the present invention. FIG. 8 is a front view showing the structure of an insert gripping part constituting an insert supply part of an insert injection molding part supply and ejection device according to one embodiment of the present invention. FIG. 9 is a drawing showing an insert gripping part constituting an insert supply section of an insert injection molding part supply and ejection device according to one embodiment of the present invention gripping an insert and supplying it to an injection mold. FIG. 10 is a perspective view showing the structure of an injection part ejection unit constituting a part supply and ejection device for insert injection molding according to one embodiment of the present invention. FIG. 11 is a front view showing the structure of an injection part ejection unit constituting a part supply and ejection device for insert injection molding according to one embodiment of the present invention. FIG. 12 is a perspective view showing the structure of an injection product gripping part constituting an injection product ejection part of an insert injection molding part supply and ejection device according to one embodiment of the present invention. Specific details for implementing the invention

[0029] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings so that a person skilled in the art to which the present invention pertains can easily practice the present invention.

[0030] In describing the embodiments, technical details that are well known in the technical field to which the present invention belongs and are not directly related to the present invention are omitted. This is intended to convey the essence of the present invention more clearly without obscuring it by omitting unnecessary explanations.

[0031] For the same reason, some components in the attached drawings have been exaggerated, omitted, or schematically depicted. Additionally, the size of each component does not entirely reflect its actual dimensions. Identical or corresponding components in each drawing have been assigned the same reference numbers.

[0032] Additionally, regarding terms such as device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom," "left," "right," "lateral"), it will be understood that the expressions and terms used herein are used merely to simplify the description of the invention and do not indicate or imply that the related device or element must simply have a specific orientation.

[0033] Hereinafter, the present invention will be described with reference to drawings illustrating a part supply and extraction device for insert injection molding according to one embodiment of the present invention.

[0034] FIG. 1 is a perspective view showing a part supply and ejection device for insert injection molding according to one embodiment of the present invention, FIG. 2 is a front view showing the structure of a part supply and ejection device for insert injection molding according to one embodiment of the present invention, and FIG. 3 is a bottom view showing the structure of a part supply and ejection device for insert injection molding according to one embodiment of the present invention.

[0035] As illustrated in FIGS. 1 to 3, an insert injection molding part supply and extraction device (1) according to one embodiment of the present invention may be configured to include an insert supply unit (100) and an injection product extraction unit (200). This insert injection molding part supply and extraction device (1) is provided in an insert injection molding machine (not shown) or a driving device such as a multi-joint robot, and can supply an insert (10) to an injection mold (not shown) and extract an injection product (20) from the injection mold after the injection molding is completed. Although not shown, the insert injection molding part supply and extraction device (1) may be provided directly in the insert injection molding machine or may be installed separately from the insert injection molding machine.

[0036] As illustrated in FIGS. 1 and 2, the insert supply unit (100) is configured to supply an insert (10) to an injection mold and may be configured to include a plurality of insert gripping units (110) and an insert gripping driving unit (120). The plurality of insert gripping units (110) simultaneously grip a plurality of inserts (10) and supply them to the injection mold, and the insert supply unit (100) may reciprocate the plurality of insert gripping units (110) in an up-and-down direction.

[0037] Additionally, the injection product ejection unit (200) is configured to eject an injection product (20) that has completed injection molding to the outside, is positioned adjacent to the insert supply unit (100), and may be configured to include a plurality of injection product gripping units (210) and an injection product gripping drive unit (220). The plurality of injection product gripping units (210) simultaneously grip the injection product (20) that has completed injection molding from the injection mold and eject it to the outside, and the injection product gripping drive unit (220) can reciprocate the plurality of injection product gripping units (210) in the up and down direction.

[0038] In this way, the insert injection molding part supply and ejection device (1) according to one embodiment of the present invention is configured with an insert supply unit (100) that simultaneously grasps a plurality of inserts (10) and supplies them to an injection mold, and an injection product ejection unit (200) that simultaneously grasps an injection product (20) that has been completed injection molding from an injection mold and ejects it to the outside, thereby enabling the supply process of the inserts (10) and the ejection process of the injection product (20) to be performed more quickly with a simpler structure.

[0039] Hereinafter, with reference to FIGS. 4 to 8, the structure of an insert supply unit (100) constituting an insert injection molding part supply and extraction device (1) according to one embodiment of the present invention will be described in detail.

[0040] FIG. 4 is a perspective view showing the structure of an insert supply unit constituting a part supply and ejection device for insert injection molding according to one embodiment of the present invention, and FIG. 5 is a front view showing the structure of an insert supply unit constituting a part supply and ejection device for insert injection molding according to one embodiment of the present invention.

[0041] As illustrated in FIGS. 2, 4 and 5, the insert supply unit (100) may be configured to include a plurality of insert gripping units (110) and insert gripping driving units (120).

[0042] The insert gripping unit (110) can simultaneously grip a plurality of inserts (10) from a process position prior to injection molding and supply them to an injection mold (not shown). This insert gripping unit (110) may be configured to include a first gripper body (111), a first gripper arm (112), a first gripper driving unit (113), and a first anti-detachment guide (114). The specific structure of the insert gripping unit (110) will be described in detail later with reference to FIGS. 6 to 8.

[0043] The insert gripping drive unit (120) can reciprocate a plurality of insert gripping units (110) in the up and down direction at a process position prior to injection molding or at a position adjacent to the injection mold.

[0044] As illustrated in FIGS. 2, 4 and 5, the insert gripping drive unit (120) may be configured to include a first drive plate (121), a first drive actuator (122) and a first drive guide unit (123).

[0045] The first driving plate (121) has a roughly plate-like shape, and a plurality of injection-molded product gripping parts (210) can be attached to its lower surface. At this time, the plurality of injection-molded product gripping parts (210) can be attached to the lower surface of the first driving plate (121) in a state where they are arranged to have a predetermined arrangement shape and spacing corresponding to the position of each of the plurality of inserts (10) to be placed in the injection mold.

[0046] FIGS. 3 and 4 illustrate an example in which eight injection molded product gripping parts (210) are coupled to one first driving plate (121), but multiple first driving plates (121) may be provided as needed.

[0047] The first driving actuator (122) is connected to the first driving plate (121) and can reciprocate the first driving plate (121) in the up and down direction. A pneumatic cylinder may be used for this first driving actuator (122). As will be described later, if the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention further includes a base plate (30), the first driving actuator (122) may be coupled to the upper side of one side (left side in the example of FIG. 2) of the base plate (30).

[0048] FIG. 2 illustrates an example in which one pneumatic cylinder is provided as an example of the first driving actuator (122), but the type, number, and arrangement of the first driving actuator (122) can be changed by a person skilled in the art.

[0049] The first drive guide section (123) is connected to the first drive plate (121) and can guide the up-and-down reciprocating movement of the first drive plate (121) when the first drive plate (121) moves in the up-and-down direction by the first drive actuator (122). This first drive guide section (123) may use a known guide structure composed of a guide shaft and a guide bush. As will be described later, when the insert injection molding part supply and ejection device (1) according to one embodiment of the present invention further includes a base plate (30), the first drive guide section (123) may be installed on one side of the base plate (30) while being coupled to the upper surface of the first drive plate (121) which is positioned on the lower side of the base plate (30).

[0050] FIG. 2 illustrates an example in which four first drive guide parts (123) are connected to the four corners of one first drive plate (121), but the type, number, and arrangement of the first drive guide parts (123) can be changed by a person skilled in the art.

[0051] Hereinafter, with reference to FIGS. 6 to 8, the structure of an insert gripping part (110) constituting an insert supply part (100) of an insert injection molding part supply and extraction device (1) according to one embodiment of the present invention will be described in detail.

[0052] FIG. 6 is a perspective view showing the structure of an insert gripping part constituting an insert supply part of an insert injection molding part supply and ejection device according to one embodiment of the present invention, FIG. 7 is an exploded perspective view showing the structure of an insert gripping part constituting an insert supply part of an insert injection molding part supply and ejection device according to one embodiment of the present invention, and FIG. 8 is a front view showing the structure of an insert gripping part constituting an insert supply part of an insert injection molding part supply and ejection device according to one embodiment of the present invention.

[0053] As illustrated in FIGS. 6 to 8, the insert gripping portion (110) may be configured to include a pair of first gripper bodies (111), a pair of first gripper arms (112), a first gripper driving portion (113), and a pair of first anti-detachment guides (114).

[0054] A pair of first gripper bodies (111) may be spaced apart from each other on both sides of the insert (10) with the insert (10) in between. As shown in FIGS. 7 and 8, each of the pair of first gripper bodies (111) has a roughly rectangular shape, and a first receiving groove (115b) corresponding to the shape of both sides of the insert (10) is formed on one side facing the insert (10), and the insert (10) can be gripped or released when reciprocating in the direction facing the insert (10).

[0055] A pair of first gripper arms (112) are connected to the top of each of a pair of first gripper bodies (111) and can reciprocate each of a pair of first gripper bodies (111) toward an insert (10) when moved by a first gripper drive unit (113).

[0056] The first gripper drive unit (113) is connected to a pair of first gripper arms (112) and can reciprocate each of the pair of first gripper arms (112) in a direction toward the insert (10). This first gripper drive unit (113) may use a pneumatic cylinder to drive the pair of first gripper arms (112) simultaneously in different directions. As shown in FIGS. 5 to 7, the first gripper drive unit (113) is coupled to a first fixed bracket (113a), and the first fixed bracket (113a) can be coupled to the lower surface of the first drive plate (121).

[0057] A pair of first anti-detachment guides (114) have a roughly thin plate-like shape and can be attached to the bottom of each of the pair of first gripper bodies (111). These pair of first anti-detachment guides (114) can prevent both sides of the insert (10) inserted into the first receiving groove (115b) formed in each of the pair of first gripper bodies (111) from coming loose.

[0058] In this way, the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention is configured such that the insert gripping part (110) comprises a pair of first gripper bodies (111) corresponding to the shape of both sides of the insert (10) and a pair of first escape prevention guides (114) that prevent the insert (10) gripped by the pair of first gripper bodies (111), thereby enabling the supply process of the insert (10) to be performed more accurately and stably.

[0059] Meanwhile, as illustrated in FIGS. 6 to 8, the insert gripping portion (110) may further include a pusher (115) to facilitate the supply of the insert (10) when a pair of first gripper bodies (111) release the insert (10) and supply it to an injection mold (not shown).

[0060] As illustrated in FIG. 8, the pusher (115) is installed to be reciprocally movable in the up-and-down direction between a pair of first gripper bodies (111) and can move the insert (10), released from gripping by the pair of first gripper bodies (111), toward the injection mold.

[0061] As illustrated in FIG. 7, the pusher (115) may be configured to include a pusher body (115a) that contacts the upper surface of the insert (10) when moving downward toward the insert (10), a pusher groove (115b) formed at the bottom of the pusher body (115a) to minimize the contact area with the insert (10), a pusher shaft (115c) formed vertically at the top of the pusher body (115a), and a pusher guide (115d) installed in the through hole (h2) of the first fixing bracket (113a) to guide the vertical reciprocating movement of the pusher shaft (115c).

[0062] Meanwhile, as illustrated in FIG. 2, when the insert gripping part (110) includes a pusher (115), the insert supply part (100) may include a pusher driving part (130) for reciprocating the pusher (115) in the up and down direction.

[0063] As illustrated in FIGS. 4 and 5, the pusher drive unit (130) may be configured to include a pusher drive plate (131), a pusher drive actuator (132), and a pusher drive guide unit (133). That is, the upper end of the pusher shaft (115c) of the pusher (115) provided in each of the plurality of injection molded product gripping units (210) is connected to the pusher drive plate (131), the pusher drive actuator (132) is connected to the pusher drive plate (131) to reciprocate the pusher drive plate (131) in the up and down direction, and the pusher drive guide unit (133) is installed in the through hole (h1) of the first drive plate (121) to guide the up and down reciprocating movement of the pusher shaft (115c) and the pusher drive plate (131).

[0064] Meanwhile, FIGS. 4 and 5 show an example where the pusher drive guide (133) is the same as the pusher guide (115d) shown in FIG. 6, but is not limited thereto, and additional guide members may be added in addition to the pusher guide (115d).

[0065] In this way, the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention is equipped with a pusher (115) that moves the insert (10), which has been released from being gripped by a pair of gripper bodies, to the injection mold, thereby enabling the supply process of the insert (10) to be performed more accurately and stably.

[0066] Meanwhile, as illustrated in FIGS. 6 to 8, the insert gripping portion (110) may further include a pair of heater members (116) and a pair of insulation blocks (117) to preheat the insert (10) supplied to the injection mold.

[0067] As illustrated in FIG. 7, a pair of heater members (116) are inserted into insertion holes (111b) formed in each of a pair of first gripper bodies (111), and can preheat an insert (10) held by a pair of first gripper bodies (111) by an external power source before injection molding, or maintain the temperature of an insert (10) that has been preheated in a previous process. Thus, the heater members (116) preheat the insert (10) and supply it to the injection mold, so that the insert (10) can be inserted more easily into the injection mold.

[0068] Additionally, a pair of insulating blocks (117) are positioned between each of a pair of first gripper bodies (111) and a pair of first gripper arms (112), and can block heat generated from each of a pair of heater members (116). That is, the insulating blocks (117) can prevent heat generated from the heater members (116) from being transferred to the first gripper drive unit (113) through the first gripper arms (112).

[0069] In this way, the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention is provided with a heater member (116) for preheating the insert (10) held by a pair of gripper bodies, so that the insert (10) can be inserted more easily into the injection mold, thereby allowing the injection molding process for the insert (10) to be performed more quickly, thus increasing the efficiency of the injection molding process.

[0070] Meanwhile, FIG. 7 illustrates an example in which a pair of heater members (116) and a pair of insulation blocks (117) are provided in the insert gripping part (110), but is not limited thereto, and the insert (10) may be preheated through a preheating device (not shown) provided separately from the insert gripping part (110).

[0071] Meanwhile, the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention may have a plurality of guide pins (41) arranged in the injection mold (40) so that the insert (10) held by the insert gripping part (110) can be supplied to an accurate position.

[0072] FIG. 9 is a drawing showing an insert gripping part constituting an insert supply section of an insert injection molding part supply and ejection device according to one embodiment of the present invention gripping an insert and supplying it to an injection mold.

[0073] As illustrated in FIG. 9, a plurality of guide pins (41) are positioned at locations corresponding to each of the plurality of inserts (10), and a sloped surface (41a) can be formed at the top facing the insert (10) supplied by each of the plurality of insert gripping parts (110) and inclined upward. Accordingly, the insert (10) supplied by each of the plurality of insert gripping parts (110) can be initially placed in an accurate position without easy misalignment by the guide pins (41) and the sloped surface (41a), and the already placed insert (10) can be stably supported by the guide pins (41) while injection molding is in progress. At this time, if a pusher (115) is provided in the insert gripping part (110), the pusher (115) can push the insert (10) toward the injection mold (40) when the insert (10) is inserted into one end of the guide pin (41), so that the insert (10) is in close contact with the bottom surface of the injection mold (40).

[0074] In this way, the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention is provided with a guide pin (41) that guides the transfer of the insert (10) to the injection mold (40) when the insert gripping part (110) supplies the insert (10) held by a pair of gripper bodies, thereby not only being able to align each of the plurality of inserts (10) to an accurate position, but also being able to perform the insert supply process more accurately and stably.

[0075] Hereinafter, with reference to FIGS. 10 to 12, the structure of the injection part ejection unit (200) constituting the insert injection molding part supply and ejection device (1) according to one embodiment of the present invention will be described in detail.

[0076] FIG. 10 is a perspective view showing the structure of an injection product ejection unit constituting an insert injection molding part supply and ejection device according to one embodiment of the present invention, FIG. 11 is a front view showing the structure of an injection product ejection unit constituting an insert injection molding part supply and ejection device according to one embodiment of the present invention, and FIG. 12 is a perspective view showing the structure of an injection product gripping unit constituting an injection product ejection unit of an insert injection molding part supply and ejection device according to one embodiment of the present invention.

[0077] As illustrated in FIGS. 2, 10 and 11, the injection molded product ejection unit (200) may be configured to include a plurality of injection molded product gripping units (210) and injection molded product gripping driving units (220).

[0078] As illustrated in FIG. 12, the injection molded product gripping portion (210) may be configured to include a pair of second gripper bodies (211), a pair of second gripper arms (212), a second gripper driving portion (213), and a pair of second anti-detachment guides (214).

[0079] That is, a pair of second gripper bodies (211) are arranged spaced apart from each other with the injection molded product (20) in between, and a second receiving groove (not shown) corresponding to both sides of the injection molded product (20) is formed so that the injection molded product (20) can be gripped or released. Additionally, a pair of second gripper arms (212) are connected to the upper ends of each of the pair of second gripper bodies (211) and can reciprocate each of the pair of second gripper bodies (211) toward the injection molded product (20). Additionally, a second gripper drive unit (213) is connected to the pair of second gripper arms (212) and can reciprocate each of the pair of second gripper arms (212). Additionally, a pair of second anti-detachment guides (214) are coupled to the bottom of each of the pair of second gripper bodies (211) and can prevent both sides of the injection molded product (20) inserted into the second receiving groove formed in each of the pair of second gripper bodies (211) from detaching.

[0080] At this time, as shown in FIG. 12, the injection molded product gripping part (210) may be positioned between a pair of second gripper bodies (211) and may further include a measuring sensor (215) for measuring the presence or absence of the injection molded product (20) when the pair of second gripper bodies (211) grip the injection molded product (20) that has been completed.

[0081] As illustrated in FIGS. 2, 10, and 11, the injection molded product gripping drive unit (220) may be configured to include a second drive plate (221), a second drive actuator (222), and a second drive guide unit (223). That is, the second drive plate (221) is coupled to a plurality of injection molded product gripping units (210), the second drive actuator (222) is connected to the second drive plate (221) to reciprocate the second drive plate (221) in an up-and-down direction, and the second drive guide unit (223) can guide the up-and-down reciprocating movement of the second drive plate (221).

[0082] In this way, the insert injection molding part supply and ejection device (1) according to one embodiment of the present invention is configured such that the injection product gripping part (210) comprises a pair of second gripper bodies (211) corresponding to the shape of both sides of the injection product (20), and a pair of second escape prevention guides (214) that prevent the injection product (20) gripped by the pair of second gripper bodies (211) from escaping, thereby enabling the ejection process of the injection product (20) to be performed more accurately and stably.

[0083] In conclusion, the injection molded part gripping part (210) shown in FIG. 12 differs from the insert gripping part (110) shown in FIG. 6 only in that the configuration corresponding to the pusher (115) is omitted, and the pair of second gripper bodies (211), the pair of second gripper arms (212), the second gripper drive part (213), and the pair of second anti-detachment guides (214) can be configured to have substantially the same structure as the pair of first gripper bodies (111), the pair of first gripper arms (112), the first gripper drive part (113), and the pair of first anti-detachment guides (114) constituting the insert gripping part (110) shown in FIG. 6.

[0084] Additionally, the injection molded product ejection unit (200) shown in FIGS. 2, 10, and 11 differs from the insert supply unit (100) shown in FIGS. 2, 4, and 5 only in that the configuration corresponding to the pusher drive unit (130) is omitted, and the second drive plate (221), second drive actuator (222), and second drive guide unit (223) can be configured to have substantially the same structure as the first drive plate (121), first drive actuator (122), and first drive guide unit (123) shown in FIGS. 2, 4, and 5.

[0085] In this way, the insert injection molding part supply and ejection device (1) according to one embodiment of the present invention can simplify the structure of the entire device and reduce manufacturing and maintenance costs and shorten manufacturing time by implementing the main configurations of the insert supply unit (100) and the injection part ejection unit (200) in substantially the same structure.

[0086] Meanwhile, as illustrated in FIGS. 1 to 3, the insert injection molding part supply and extraction device (1) according to one embodiment of the present invention may further include a base plate (30) on which an insert gripping driving unit (120) is installed on one side and an injection product gripping driving unit (220) is installed on the other side so that the insert supply unit (100) and the injection product extraction unit (200) can move simultaneously.

[0087] Although not shown, the base plate (30) is driven by being connected to a separate transfer device (not shown), such as a multi-joint robot equipped in an insert injection molding machine (not shown), and can simultaneously move the insert supply unit (100) and the injection product ejection unit (200) from a previous process position toward the injection mold (40) or from the injection mold (40) toward the next process position.

[0088] Preferably, as shown in FIG. 2, the first driving actuator (122) constituting the insert gripping driving unit (120) is coupled to the upper side of one side (left in the example of FIG. 2), and the first driving plate (121) can be installed so as to be reciprocated in the up and down direction by the first driving guide (123) installed on one side of the base plate (30) while positioned on the lower side of one side of the base plate (30). Additionally, the second driving actuator (222) constituting the injection molded product gripping driving unit (220) is coupled to the upper side of the other side (right in the example of FIG. 2), and the second driving plate (221) can be installed so as to be reciprocated in the up and down direction by the second driving guide (223) installed on the other side of the base plate (30) while positioned on the lower side of the other side of the base plate (30).

[0089] Meanwhile, the present specification and drawings disclose preferred embodiments of the present invention. Although specific terms have been used, they are used merely in a general sense to facilitate the explanation of the technical content of the present invention and to aid in understanding the invention, and are not intended to limit the scope of the present invention. It is obvious to those skilled in the art that, in addition to the embodiments disclosed herein, other variations based on the technical concept of the present invention are possible. Explanation of the symbols

[0090] <Explanation of symbols for major parts of the drawing> 1: Part feeding and ejection device for insert injection molding 10: Insert 20: Injection part 30: Base plate 40: Injection mold 41: Guide pin 41a: Draped surface 100: Insert supply unit 110: Insert gripping unit 111: 1st gripper body 112: 1st gripper arm 113: 1st gripper drive unit 114: 1st anti-detachment guide 115: Pusher 116: Heater absence 117: Insulation block 120: Insert gripping drive unit 121: First driving plate 122: First driving actuator 123: 1st drive guide section 130: Pusher drive section 131: Pusher drive plate 132: Pusher drive actuator 133: Pusher drive guide section 200: Injection part ejection section 210: Injection part gripping part 211: Second gripper body 212: Second gripper arm 213: Second gripper drive unit 214: Second Deviation Prevention Guide 215: Measurement Sensor 216: Connecting block 220: Injection part gripping drive unit 221: Second driving plate 222: Second driving actuator 223: Second drive guide section

Claims

Claim 1 A part supply and ejection device for insert injection molding, which supplies an insert to an injection mold and ejects an injection molded product from the injection mold after the injection molding is completed, comprising: a plurality of insert gripping parts that simultaneously grip a plurality of inserts and supply them to the injection mold; and an insert gripping driving part that reciprocates the plurality of insert gripping parts in an up-and-down direction; The injection product ejection unit comprises a plurality of injection product gripping units arranged adjacent to the insert supply unit and simultaneously gripping and ejecting an injection product formed after injection molding is completed from the injection mold, and an injection product gripping driving unit that reciprocates the plurality of injection product gripping units in an up-and-down direction; wherein each of the plurality of insert gripping units is arranged in a spaced-apart state with each of the plurality of inserts in between, and a first receiving groove corresponding to both sides of each of the plurality of inserts is formed to grip or release each of the plurality of inserts; a pair of first gripper arms connected to the upper ends of each of the pair of first gripper bodies and reciprocatingly driving each of the pair of first gripper bodies toward each of the plurality of inserts; and a first gripper driving unit connected to the pair of first gripper arms and reciprocatingly driving each of the pair of first gripper arms. A part supply and extraction device for insert injection molding, characterized by including a pair of first anti-detachment guides coupled to the lower end of each of the pair of first gripper bodies and preventing both sides of each of the plurality of inserts inserted into a first receiving groove formed in each of the pair of first gripper bodies from detaching. Claim 2 delete Claim 3 A part supply and extraction device for insert injection molding according to claim 1, wherein each of the plurality of insert gripping parts is installed to be reciprocally movable in the vertical direction between the pair of first gripper bodies and further includes a pusher that moves each of the plurality of inserts released from gripping by the pair of first gripper bodies in a direction toward the injection mold. Claim 4 The insert injection molding part supply and extraction device according to claim 1, wherein each of the plurality of insert gripping parts is provided in each of the pair of first gripper bodies and comprises a pair of heater members for preheating each of the plurality of inserts gripped by the pair of first gripper bodies; and further comprises a pair of insulation blocks disposed between each of the pair of first gripper bodies and the pair of first gripper arms for blocking heat generated from each of the pair of heater members. Claim 5 The insert gripping drive unit according to claim 1 comprises: at least one first drive plate to which the plurality of insert gripping units are coupled; at least one first drive actuator connected to the at least one first drive plate and reciprocatingly driving the at least one first drive plate in an up-and-down direction; and at least one first drive guide unit guiding the up-and-down reciprocating movement of each of the at least one first drive plates, characterized in that it is an insert injection molding part supply and ejection device. Claim 6 The insert injection molding part supply and extraction device according to claim 1, wherein each of the plurality of injection molding part gripping portions is arranged spaced apart from each other with each of the plurality of injection molding parts in between, and has a second receiving groove formed on both sides of each of the plurality of injection molding parts to grip or release each of the plurality of injection molding parts; a pair of second gripper arms connected to the upper end of each of the pair of second gripper bodies and reciprocatingly driving each of the pair of second gripper bodies toward each of the plurality of injection molding parts; a second gripper driving portion connected to the pair of second gripper arms and reciprocatingly driving each of the pair of second gripper arms; and a pair of second anti-detachment guides coupled to the lower end of each of the pair of second gripper bodies and preventing both sides of each of the plurality of injection molding parts inserted into the second receiving groove formed in each of the pair of second gripper bodies from detaching. Claim 7 The insert injection molding part supply and extraction device according to claim 1, wherein the injection part gripping drive unit comprises: at least one second drive plate to which the plurality of injection part gripping units are coupled; at least one second drive actuator connected to the at least one second drive plate and reciprocatingly driving the at least one second drive plate in an up-and-down direction; and at least one second drive guide unit that guides the up-and-down reciprocating movement of each of the at least one second drive plate. Claim 8 The insert injection molding part supply and ejection device according to claim 1 further comprises a base plate having an insert gripping drive unit installed on one side and an injection product gripping drive unit installed on the other side so that the insert supply unit and the injection product ejection unit can move simultaneously. Claim 9 A part supply and extraction device for insert injection molding according to claim 1, wherein the injection mold comprises a plurality of guide pins arranged at a position corresponding to each of the plurality of inserts, and having a sloped surface formed at the top facing each of the plurality of inserts supplied by each of the plurality of insert gripping parts, sloping upward.

Images