Automatic vision test and sanding system for processing big size plastic injection molding goods

Abstract

The objective of the present invention is to provide an automatic inspection and sanding system for processing large plastic injection molded products. The configuration of the present invention is characterized by including a material feeding robot (1) for feeding material into an injection mold, an inspection and sanding system transfer robot (2) for transferring an injection molded product (10) that has been molded and ejected from the injection mold (120) to an automatic inspection and sanding system, a vision inspection and product cutting robot (3) for cutting a product through vision inspection from the injection molded product (10), a polishing and punching robot (4) for polishing the edges of the cut injection molded product (10) and driving for punching the injection molded product (10), and a surface treatment robot for surface treatment of the cut injection molded product (10).

Description

Technology Field

[0001] The present invention relates to an automatic inspection and sanding system for processing large plastic injection molded parts, and more specifically, to an automatic inspection and sanding system for processing large plastic injection molded parts implemented to smoothly and precisely perform processing, automatic inspection, and sanding operations as a series of automated processes when processing large plastic injection molded parts. Background Technology

[0003] Generally, large plastic products formed by injection molding may have rough surfaces, making it difficult to use them immediately; therefore, vision inspection and sanding processes are required for their use. In other words, it is necessary to produce large plastic products suitable for use by performing sanding and vision inspection on the injection-molded products.

[0004] However, while the surface of plastic products has traditionally been smoothed using sandpaper, this process is not suitable for sanding large plastic products. Furthermore, it presents issues such as prolonged processing time and the difficulty of achieving consistent sanding quality when treating a large volume of large plastic products. Prior art literature

[0006] Patent Publication No. 10-2020-0012013 Utility Model Publication No. 20-2012-0005136 The problem to be solved

[0007] The main objective of the present invention is to provide an automatic inspection and sanding system for processing large plastic injection molded parts, implemented to enable the smooth and precise execution of processing, automatic inspection, and sanding operations as a series of automated processes when processing large plastic injection molded parts.

[0008] 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

[0010] According to the present invention for solving the above-mentioned problems, an automatic inspection and sanding system for processing large plastic injection molded products is provided, characterized by comprising: a material feeding robot (1) (Robot No. 1) for feeding material into an injection mold (120); an inspection and sanding system transfer robot (2) (Robot No. 2) for transferring an injection molded product (10) that has been molded and ejected from the injection mold (120) to an automatic inspection and sanding system; a vision inspection and product cutting robot (3) (Robot No. 3) for cutting a product through vision inspection from the injection molded product (10); a polishing and punching robot (4) (Robot No. 4) for polishing (sanding) and punching the edges of the cut injection molded product (10); and a surface treatment robot (Robot No. 7 and Robot No. 9) for surface treatment (sanding) of the cut injection molded product (10).

[0011] The above surface treatment robot is characterized by including a first surface treatment robot (7) (Robot No. 7) which is a robot for performing a first rough surface treatment (sanding) of the product after the corners are processed and punched by the polishing and punching robot (4) and the injection molded product (10) is formed, which is an edge polished and punched product, and a second surface treatment robot (9) (Robot No. 9) which performs a second fine surface treatment of the first surface treated product by driving the first surface treatment robot (7) (Robot No. 7).

[0012] It is characterized by further including a fixed sanding paper support system (5) (machine No. 5) for fixing the sandpaper (SP) to polish the cut injection molded product (10) with sandpaper (SP) by the polishing and punching robot (4).

[0013] The system is further characterized by including a sandpaper replacement robot (6) (Robot No. 6) for replacing the sandpaper (SP) used in the above fixed sandpaper support system (5) with a new sandpaper (SP).

[0014] The above-described polishing and punching robot (4) further includes a primary fixed sanding paper support system (8) (machine 8) that fixes the sanding paper (SP) so that the corners of the product are polished with sanding paper (SP) by the above-described fixed sanding paper support system (5) and the punched injection molded product (10) is subjected to primary surface treatment with sanding paper (SP) by the driving of the above-described primary surface treatment robot (7) (robot 7).

[0015] It is characterized by further including a secondary fixed sanding paper support system (13) (machine 13) that fixes the sandpaper (SP) so that the product undergoes secondary surface treatment with sandpaper (SP) by driving the secondary surface treatment robot (9) after the product has undergone primary rough surface treatment (sanding) by the primary surface treatment robot (7) (robot 7). Effects of the invention

[0017] The present invention forms a large plastic injection molded product by feeding material into an injection mold using a material feeding robot, transferring the ejected injection molded product to an automatic inspection and sanding system using an inspection and sanding system transfer robot, cutting the product through vision inspection from the injection molded product by driving a vision inspection and product cutting robot, polishing (sanding) and punching the edges of the product using a polishing and punching robot, and sanding the surface of the product using a surface treatment robot. Therefore, when processing large plastic injection molded products, processing, automatic inspection, and sanding operations can be performed smoothly and precisely as a series of automated processes, and the problem of prolonged working time is resolved, resulting in improved productivity. Additionally, when surface treating a large quantity of large plastic products, the same quality of sanding results can be expected.

[0018] The effects of the present invention are not limited to those mentioned above, and various effects may be included within the scope obvious to a person skilled in the art from the contents described below. Brief explanation of the drawing

[0020] FIG. 1 is a layout drawing schematically showing the structure of an automatic inspection and sanding system for processing large plastic injection molded parts according to the present invention. FIG. 2 is a plan view of FIG. 1, FIG. 3 is a drawing showing the structure of the material feeding robot and the material mounting table part, which are the main parts of the present invention. FIG. 4 is a diagram schematically showing the structure of the inspection and sanding system handover robot, the vision inspection and product cutting robot, the polishing and punching robot, the fixed sanding paper support system, the sandpaper replacement robot, the primary surface treatment robot, and the secondary surface treatment robot, which are the main parts of the present invention. FIGS. 5 to 7 are drawings showing a process of feeding material into an injection mold by driving a material feeding robot shown in FIG. 3. FIG. 8 is a drawing showing the process of molding an injection molded product for the production of a large plastic injection molded product by the injection molds shown in FIGS. 5 to 7. FIG. 9 is a drawing showing an enlarged view of the process of removing an injection molded product by an injection molding product removal robot by an automatic inspection and sanding system for processing large plastic injection molded products according to the present invention, and surrounding components. FIG. 10 is a drawing showing the state in which an injection-molded product, received from an injection-molded product extraction robot by an inspection and sanding system handover robot which is a key part of the present invention, is placed on a vision inspection and cutting table. FIGS. 11 to 13 are drawings showing a process for performing vision inspection and cutting processes of an injection-molded product by a vision inspection and product cutting robot, which is a main part of the present invention. FIG. 14 is an enlarged view schematically showing the structure of the vision inspection machine and cutter part, which are the main parts of the vision inspection and product cutting robots shown in FIG. 11 to 13. FIG. 15 is a front cross-sectional view schematically showing the structure of the cutter part illustrated in FIG. 14, FIGS. 16 and 17 are drawings showing a process in which by-products are picked up by an inspection and sanding system handover robot after the by-products on the periphery of an injection-molded product have been cut by a vision inspection and product cutting robot shown in FIGS. 11 to 13. FIG. 18 is a drawing showing the process of placing by-products of an injection molded product picked up by the inspection and sanding system handover robot shown in FIG. 16 onto a cooling shelf. FIGS. 19 and 20 are drawings showing a process in which an injection-molded product with trimmed perimeter by-products is picked up by an inspection and sanding system transfer robot shown in FIG. 18 and moved onto a transfer shelf. FIGS. 21 and 22 are schematic drawings showing the process of picking up by-products of an injection molded product by the inspection and sanding system handover robot shown in FIG. 18 and feeding them into a by-product disposal and crusher. FIG. 23 is a drawing showing the structure of a fixed sanding paper support system, a sanding paper replacement robot, a primary surface treatment robot, and a primary fixed sanding paper support system, which are other key parts of an automatic inspection and sanding system for processing large plastic injection molded parts according to the present invention. FIG. 24 is a drawing showing the process of picking up an injection molded part from a transfer lathe by a polishing and punching robot illustrated in FIG. 23. FIG. 25 is a drawing showing a process of punching an injection molded product by driving a polishing and punching robot and a punching device as illustrated in FIG. 24. FIG. 26 is a schematic diagram showing the process of polishing the corner portion of an injection-molded product by driving the polishing and punching robot illustrated in FIG. 24. FIG. 27 is a diagram schematically showing the structure of a fixed sanding paper support system, which is a main part of the present invention. FIGS. 28 to 31 are drawings showing a process of replacing sandpaper by supplying new sandpaper to a fixed sanding paper support system by driving a sandpaper replacement robot, which is another key part of the present invention. FIGS. 32 and 33 are drawings showing a process of transferring an injection molded product, whose edges have been polished by driving a polishing and punching robot which is a main part of the present invention, to a primary surface treatment robot. FIG. 34 is a schematic diagram showing a process of primary polishing of a large surface of an injection molded product by driving a primary surface treatment robot shown in FIG. 32 and FIG. 33. FIGS. 35 and 36 are schematic drawings showing a process of moving a primary surface-treated injection molded part onto a primary surface-treated injection molded part transfer table by driving the primary surface treatment robot shown in FIG. 34. FIGS. 37 and 38 are drawings showing a process of picking up an injection molded product that has undergone primary surface polishing treatment on a primary surface treated injection molded product transfer table by driving a secondary surface treatment robot, which is a main part of the present invention. FIG. 39 is a schematic diagram showing a process of processing a large plastic injection molded product by secondarily polishing the surface of the injection molded product that has been first polished by driving the second surface treatment robot shown in FIG. 38. FIGS. 40 and 41 are drawings showing a process of moving a large plastic injection molded product to a discharge line by driving a secondary surface treatment robot shown in FIG. 39. FIG. 42 is a front view schematically showing the structure of the internal suction chamber and suction hole of a modified embodiment of a vision inspection and cutting table, which is a main part of the present invention. Specific details for implementing the invention

[0021] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. The objectives, features, and advantages of the present invention will be more easily understood by referring to the attached drawings and the following detailed description. Furthermore, in describing the present invention, if it is determined that a detailed description of related known components or functions may obscure the essence of the present invention, such detailed description is omitted.

[0022] In addition, terms such as first, second, A, B, (a), (b), etc., may be used when describing the components of the present invention. These terms are intended only to distinguish the components from other components, and the essence, order, or sequence of the components is not limited by the terms. For example, where it is stated that a component is "connected," "combined," or "connected" to another component, it should be understood that the component may be directly connected to or connected to the other component, but that another component may also be "connected," "combined," or "connected" between each component.

[0024] FIG. 1 is a layout drawing schematically showing the structure of an automatic inspection and sanding system for processing large plastic injection molded parts according to the present invention; FIG. 2 is a plan view of FIG. 1; FIG. 3 is a drawing showing the structure of a material feeding robot and a material mounting table part, which are the main parts of the present invention; FIG. 4 is a drawing schematically showing the structure of an inspection and sanding system handover robot, a vision inspection and product cutting robot, a polishing and punching robot, a fixed sanding paper support system, a sanding paper replacement robot, a primary surface treatment robot, and a secondary surface treatment robot, which are the main parts of the present invention; FIG. 5 to 7 are drawings showing the process of feeding material into an injection mold by driving the material feeding robot shown in FIG. 3; FIG. 8 is a drawing showing the process of molding an injection molded part for producing a large plastic injection molded part by the injection mold shown in FIG. 5 to 7; FIG. 9 is a drawing showing an enlarged view of the process of ejecting an injection molded part from an injection mold by an injection molded part ejection robot by the automatic inspection and sanding system for processing large plastic injection molded parts according to the present invention and surrounding components. FIG. 10 is a drawing showing a state in which an injection-molded product, received from an injection-molded product extraction robot by an inspection and sanding system transfer robot, which is a main part of the present invention, is placed on a vision inspection and cutting table; FIG. 11 to 13 are drawings showing a process of performing vision inspection and cutting processes of an injection-molded product by a vision inspection and product cutting robot, which is a main part of the present invention; FIG. 14 is an enlarged view schematically showing the structure of the vision inspection machine and the cutter part, which are main parts of the vision inspection and product cutting robot shown in FIG. 11 to 13; FIG. 15 is a cross-sectional view schematically showing the structure of the cutter part shown in FIG. 14; FIG. 16 and FIG. 17 are drawings showing a process of picking up by-products by an inspection and sanding system transfer robot in a state where by-products on the periphery of the injection-molded product have been cut by the vision inspection and product cutting robot shown in FIG. 11 to 13.FIG. 18 is a drawing showing the process of placing by-products of an injection molded product picked up by the inspection and sanding system transfer robot shown in FIG. 16 onto a cooling shelf; FIG. 19 and FIG. 20 are drawings showing the process of picking up an injection molded product with trimmed by-products from the periphery by the inspection and sanding system transfer robot shown in FIG. 18 and moving it onto a transfer shelf; FIG. 21 and FIG. 22 are schematic drawings showing the process of picking up by-products of an injection molded product by the inspection and sanding system transfer robot shown in FIG. 18 and feeding them into a by-product disposal and crusher; FIG. 23 is a drawing showing the structure of a fixed sanding paper support system, a sanding paper replacement robot, a primary surface treatment robot, and a primary fixed sanding paper support system, which are other major parts of the automatic inspection and sanding system for processing large plastic injection molded products according to the present invention; FIG. 24 is a drawing showing the process of picking up an injection molded product from a transfer shelf by the polishing and punching robot shown in FIG. 23; FIG. 25 is the polishing and A drawing showing a process of punching a molded product by driving a punching robot and a punching device; FIG. 26 is a schematic drawing showing a process of polishing the corner portion of a molded product by driving a polishing and punching robot shown in FIG. 24; FIG. 27 is a schematic drawing showing the structure of a fixed sanding paper support system, which is a main part of the present invention; FIG. 28 to FIG. 31 are drawings showing a process of replacing sandpaper by supplying new sandpaper to a fixed sanding paper support system by driving a sandpaper replacement robot, which is another main part of the present invention; FIG. 32 and FIG. 33 are drawings showing a process of transferring a molded product with its corners polished by driving a polishing and punching robot, which is a main part of the present invention, to a primary surface treatment robot; FIG. 34 is a schematic drawing showing a process of primary polishing the wide surface of a molded product by driving a primary surface treatment robot shown in FIG. 32 and FIG. 33.FIGS. 35 and 36 are schematic diagrams illustrating the process of moving an injection molded product that has undergone primary surface treatment processing onto a primary surface treatment injection molded product transfer table by driving a primary surface treatment robot shown in FIG. 34; FIGS. 37 and 38 are diagrams illustrating the process of picking up an injection molded product that has undergone primary surface polishing treatment from a primary surface treatment injection molded product transfer table by driving a secondary surface treatment robot, which is a main part of the present invention; FIG. 39 is a schematic diagram illustrating the process of processing a large plastic injection molded product by secondary surface polishing the surface of the injection molded product that has undergone primary surface polishing by driving a secondary surface treatment robot shown in FIG. 38; and FIGS. 40 and 41 are diagrams illustrating the process of moving a large plastic injection molded product to a discharge line by driving a secondary surface treatment robot shown in FIG. 39.

[0025] Referring to the drawings, the present invention includes a material feeding robot (1), an inspection and sanding system transfer robot (2), a vision inspection and product cutting robot (3), a polishing and punching robot (4), and a surface treatment robot as basic components.

[0026] The above material feeding robot is robot No. 1, and is a robot that operates to feed material into the injection mold (120).

[0027] At this time, referring to FIGS. 1 and FIGS. 3, a material mounting table (112) is provided in front of the material input robot (1), and a material mounting container (113) is placed on the material mounting table (112), so that the material input robot (1) picks up molding material for molding a large plastic injection molded product (10) from the material mounting container (113) and supplies it toward the injection mold (120).

[0028] Meanwhile, the above material feeding robot (1) is equipped with a suction pad, so that the molding material can be picked up from the material holding container (113) by the suction pressure of the suction pad and supplied to the injection mold (120).

[0029] Additionally, referring to FIGS. 3 to 10, the injection mold (120) is configured such that a first injection mold (122) and a second injection mold (124), which are coupled to a main frame (110) for supporting molds so as to be able to move back and forth in the width direction, can be brought into close contact with each other or spread apart from each other on the main frame (110) for supporting molds by means of a moving operating means. Molding material is injected between the first injection mold (122) and the second injection mold (124) that are spread apart by the driving of the material feeding robot (1). When the molding material settles in one of the half cavities facing each other between the first injection mold (122) and the second injection mold (124), the material feeding robot (1) moves to the outside of the first injection mold (122) and the second injection mold (124), and in this state, the first injection mold (122) and the second injection mold (124) are advanced to come into contact and mold. A mold is formed, and the molding material is melted in the cavity inside the mold by the melting heat applied from the first injection mold (122) and the second injection mold (124) of the molding mold, thereby forming an injection product (10) for forming a large plastic injection product (10), and a flap-shaped byproduct (10S) is attached to the periphery of the injection product (10), and the injection product (10) formed with the byproduct (10S) attached to the periphery is converted into a state where it can be ejected from the molding mold by opening the first injection mold (122) and the second injection mold (124).

[0030] Meanwhile, the main frame (110) for supporting the mold is configured such that the injection product extraction robot (132) can move in a direction perpendicular to the width direction by the operation of an orthogonal movement means, and the injection product extraction robot (132) is equipped with a pair of extraction grippers that move back and forth relative to the width direction of the main frame (110) for supporting the mold, so that the pair of extraction grippers grip the injection product (10) in the cavity of the first injection mold (122) and the second injection mold (124) that are separated from each other. As shown in FIG. 12, the pair of extraction grippers of the injection product extraction robot (132) grip the flap-shaped by-product (10S) portion of the periphery of the injection product (10), thereby making it appear as if the injection product extraction robot (132) has gripped the injection product (10). That is, in the present invention, the operation of ejecting the injection product (10) from the injection mold (120) is configured to be enabled by the driving of the injection product ejection robot (132), which is an ejection device movably coupled to the mold support frame.

[0031] In this way, with a pair of extraction grippers of the injection molding extraction robot (132) gripping the injection molding (10), the injection molding extraction robot (132) can advance in a direction perpendicular to the width direction of the main frame (110) for mold support to extract the injection molding (10) from the cavities of the first injection mold (122) and the second injection mold (124) that are spread apart from each other. Of course, the operation of the injection molding extraction robot (132) moving in a direction perpendicular to the width direction of the main frame (110) for mold support can be achieved by driving an orthogonal direction movement operating means mounted on the main frame (110) for mold support, while the operation of the pair of extraction grippers moving in the width direction of the main frame (110) for mold support to spread apart or narrow apart from each other can be achieved by driving a gripper forward / backward driving means. Since the above-mentioned orthogonal direction moving actuation means and gripper forward / backward driving means may employ known moving drive devices such as moving drive motors, further detailed descriptions and drawings regarding the orthogonal direction moving actuation means and gripper forward / backward driving means will be omitted.

[0032] The inspection and sanding system transfer robot (2) is a second robot and functions to transfer an injection molded product (10) that has been molded and ejected from the injection mold (120) to an automatic inspection and sanding system. The inspection and sanding system transfer robot (2) is positioned opposite to the material input robot (1) with respect to the main frame (110) for supporting the mold. When viewed with reference to FIG. 2, the material input robot (1) is positioned at the lower position of the main frame (110) for supporting the mold, and the inspection and sanding system transfer robot (2) is positioned at the upper position of the main frame (110) for supporting the mold.

[0033] Referring to FIGS. 4 and FIGS. 8 to 10, the injection molded product (10) that has been ejected vertically from the injection mold (120) by the injection molded product ejection robot (132) is received by the inspection and sanding system transfer robot (2) and transferred onto the vision inspection and cutting table (152) in front of the vision inspection and product cutting robot (3) (Robot No. 3). At this time, the inspection and sanding system transfer robot (2) is also equipped with a suction pad, so that the inspection and sanding system transfer robot (2) can receive the injection molded product (10) that has been ejected by the injection molded product ejection robot (132) in a firmly suctioned state by the suction pressure of the suction pad. In the present invention, the injection molding product (10) that has been ejected vertically from the injection mold (120) by the injection molding product ejection robot (132) is received by the inspection and sanding system transfer robot (2) and transferred horizontally onto the vision inspection and cutting table (152) in front of the vision inspection and product cutting robot (3) (Robot No. 3).

[0034] Referring to FIGS. 8 to 14, the vision inspection and product cutting robot (3) is a robot number 3, which cuts a product through vision inspection from the injection molded product (10).

[0035] The above vision inspection and product cutting robot (3) cuts the product while moving using a cutting blade and accurate positioning through a vision inspection device (3VM). Cutting the product means cutting the byproduct (10S) from an injection molded product (10) that has a flap-shaped byproduct (10S) on its periphery. In the past, since the blade was fixed and the product was moved to cut, many systems were required, which was complex and caused frequent breakdowns. However, in the present invention, the vision inspection and product cutting robot (3) cuts the product while moving using a cutting blade and accurate positioning through a vision inspection device (3VM), so many systems are not required, which eliminates complexity and resolves the cause of frequent breakdowns. At this time, the cutter (3CU) (blade) and the vision inspection device (3VT) are mounted on the joint arm of the vision inspection and product cutting robot (3), and the vision inspection and product cutting robot (3) may be configured to cut the periphery of the injection molded product (10) according to a pre-programmed cutting program to cut and remove by-products (10S) from the injection molded product (10). At this time, the cutter (3CU) mounted on the joint arm of the vision inspection and product cutting robot (3) may be a general blade, but the cutter (3CU) may be configured as a laser cutting cutter that cuts (cuts) the by-products (10SP) on the periphery of the injection molded product (10) with a laser that irradiates a laser for laser cutting.

[0036] Meanwhile, referring to FIG. 15, the present invention applies an active pressure system to prevent the cutter of the vision inspection and product cutting robot (3) from slipping during cutting. That is, the present invention is a system that prevents miscutting caused by cutter slipping by actively adjusting the cutter pressure (blade pressure) for each product (in other words, for each injection molded product (10)). At this time, as shown in FIG. 15, the cutter (3CU) (blade) can be configured to be placed inside a support cushion and fixed inside the support cushion by being pressurized by the active pressure system (mainly an active pressure cylinder). Meanwhile, the support cushion can be configured to be mounted on the joint arm of the vision inspection and product cutting robot (3).

[0037] Additionally, referring to FIGS. 16 to 19, the inspection and sanding system transfer robot (2) (Robot No. 2) takes over the injection molded product (10) when it is ejected and transfers it to Robot No. 3 (inspection and cutting). The byproduct (10S) cut by the vision inspection and product cutting robot (3) is moved toward a cooling shelf (162) with a built-in cooling fan (164) to lower the temperature of the byproduct (10S) by operating the cooling fan (164) on the cooling shelf (162). After the temperature of the byproduct (10S) is lowered, the robot operates to transfer the byproduct (10S) to a byproduct disposal and crusher (142).

[0038] FIG. 22 illustrates a process in which the byproduct (10S) cut by the vision inspection and product cutting robot (3) is cooled on a cooling shelf (162) with a built-in cooling fan (164), and then the inspection and sanding system transfer robot (2) (Robot No. 2) transfers the byproduct (10S) to a byproduct disposal and crusher (142).

[0039] Meanwhile, as shown in FIGS. 19 to 21, while the temperature of the byproduct (10S) placed on the cooling shelf (162) is lowered by the operation of the cooling fan (164), the inspection and sanding system transfer robot (2) (Robot No. 2) is driven to transfer the product to the transfer shelf (172) in front of the polishing and punching robot (4) (Robot No. 4), which is a robot for polishing (sanding) and punching the edges of the cut product.

[0040] Next, as shown in FIGS. 21 and 22, the inspection and sanding system transfer robot (2) (Robot No. 2) moves back toward the cooling shelf (162) to pick up the byproduct (10S) whose temperature has been lowered on the cooling shelf (162) and transfers the byproduct (10S) to the byproduct disposal and crusher (142).

[0041] The above polishing and punching robot (4) is a robot number 4, and the above polishing and punching robot (4) is a robot for polishing (sanding) and punching the edges of the cut injection molded product (10) (i.e., the injection molded product (10) from which the by-product (10S) of the periphery is cut by the vision inspection and product cutting robot (3).

[0042] Referring to FIGS. 23 and 24, the polishing and punching robot (4) picks up an injection molded product (10) (hereinafter referred to as the injection molded product (10)) from which the byproduct (10S) has been cut on the transfer shelf (172). At this time, the polishing and punching robot (4) is equipped with a suction pad, so that the polishing and punching robot (4) can be configured to pick up the injection molded product (10) from the transfer shelf (172) by the suction pressure of the suction pad.

[0043] Referring to FIG. 25, the polishing and punching robot (4) can be driven to move the injection molded product (10) to the punching device (174) and the punching device (174) can perform a punching operation on the injection molded product (10) to form a hole. The product can be moved to the punching device (174) by the polishing and punching robot (4) and configured to punch a hole in the product according to the required depth and position by the punching device (174).

[0044] Meanwhile, referring to FIG. 26, the present invention further includes a fixed sanding paper support system (5) (machine No. 5) for fixing sandpaper (SP) to polish the cut injection molded product (10) with sandpaper (SP) by a polishing and punching robot (4). In the present invention, the fixed sanding paper support system (5) can be described as a fixed sanding paper and negative pressure motor system.

[0045] Referring to FIG. 27, the fixed sanding paper support system (5) is a machine No. 5, which is a fixed sanding paper and negative pressure motor system, and the fixed sanding paper support system (5) functions to support the sanding paper (SP) to be fixed in order to perform sanding of the product edges.

[0046] The above fixed sanding paper support system (5) is configured such that a negative pressure generating funnel is installed on a sanding paper (SP) mounting support tube that is set up in a vertical direction, so that positive pressure is applied to the sanding paper (SP) placed on the upper part of the sanding paper (SP) mounting support tube, and negative pressure is applied to the side of the negative pressure generating funnel, thereby supporting the sanding paper (SP) so that it is stably fixed without moving on the upper part of the sanding paper (SP) mounting support tube. At this time, the negative pressure generating funnel is installed to communicate with the interior of the sandpaper (SP) mounting support tube, and an observation suction hole is provided at the upper end of the sandpaper (SP) mounting support tube, and an external suction device, which is not shown, is connected to the interior of the negative pressure generating funnel through a connecting pipe such as a connecting hose, so that suction pressure is applied from the suction device to the interior of the negative pressure generating funnel, the interior of the sandpaper (SP) supporting tube, and the observation suction hole, thereby applying positive pressure to the upper part of the sandpaper (SP) placed on the upper end of the sandpaper (SP) supporting tube, and applying negative pressure due to the suction pressure to the negative pressure generating funnel, the interior of the sandpaper (SP) supporting tube, and the observation suction hole, so that the sandpaper (SP) can be supported so as to be stably fixed without moving on the upper end of the sandpaper (SP) mounting support tube. That is, the sandpaper (SP) for polishing can be stably maintained in a horizontally fixed and supported state by the fixed sandpaper support system (5) set up in a vertical direction.

[0047] Most conventional sanding systems involve mounting sandpaper onto a robot and sanding as the robot moves across the product surface. However, the drawbacks of this approach include pollution caused by the dispersion of fine sanding dust and the difficulty of achieving precise sanding due to the combination of vibration motors and robots. Consequently, additional labor is required.

[0048] In contrast, the present invention enables the control of fine dust generated during sanding operations using a negative pressure system, thereby separating the vibration motor and the sanding robot to reduce vibration and enable more precise sanding. That is, the fine dust generated during sanding operations can be controlled by the fixed sanding paper support system (5), which is a negative pressure system, thereby separating the vibration motor and the sanding robot to reduce vibration and enable more precise sanding.

[0049] Meanwhile, the present invention further includes a sandpaper replacement robot (6) (Robot No. 6) for replacing the sandpaper (SP) used in the fixed sandpaper support system (5) with a new sandpaper (SP).

[0050] The sandpaper (SP) used to grind the corner of the injection molded product (10) that has been cut by the operation of the polishing and punching robot (4) while resting on the upper part of the sandpaper (SP) support tube of the fixed sanding paper support system (5), and the sandpaper (SP) used to grind the corner of the product that has been cut by the operation of the polishing and punching robot (4) is resting on the upper part of the sandpaper (SP) support tube, and as shown in FIGS. 28 and 29, the sandpaper replacement robot (6), which is robot number 6, drives the sandpaper (SP) (Old Sandpaper) used to grind the corner of the product to be moved to the side so that it is removed from the upper part of the sandpaper (SP) support tube.

[0051] In addition, as illustrated in FIGS. 28 to 39, the present invention is provided with a plurality of sandpaper loading magazines (192) loaded with a plurality of sheets of sandpaper (SP). As illustrated in FIGS. 30 and 31, the sandpaper replacement robot (6), which is robot number 6, picks up a new sheet of sandpaper (SP) (New Sandpaper) from the sandpaper loading magazines (192) and supplies it to the upper part of the sandpaper (SP) support tube.

[0052] In addition, the present invention includes a surface treatment robot for surface treatment (sanding) of the cut injection molded product (10). In the present invention, the surface treatment robot includes robot No. 7 and robot No. 9.

[0053] Referring to FIGS. 32 to 39, the surface treatment robot in the present invention includes a first surface treatment robot (7) (Robot No. 7) which takes over the injection molded product (10) from the polishing and punching robot (4) after the corners are processed and punched by the polishing and punching robot (4) and performs a first rough surface treatment (sanding) of the product, and a second surface treatment robot (9) (Robot No. 9) which performs a second fine surface treatment on the first surface treated product by driving the first surface treatment robot (7) (Robot No. 7).

[0054] In addition, the present invention further includes a primary fixed sanding paper support system (8) (machine 8) that fixes the sanding paper (SP) so that the polishing and punching robot (4) polishes the corners of the product with sanding paper (SP) by the fixed sanding paper support system (5) and the punched injection molded product (10) is first surface treated with sanding paper (SP) by the drive of the primary surface treatment robot (7) (robot 7).

[0055] In addition, the present invention further includes a secondary fixed sanding paper support system (13) (machine 13) that fixes the sandpaper (SP) so that the product undergoes secondary surface treatment with sandpaper (SP) by driving the secondary surface treatment robot (9) after the product has undergone primary rough surface treatment (sanding) by the primary surface treatment robot (7) (robot 7).

[0056] The present invention includes a first surface treatment robot (7) (Robot No. 7) and a second surface treatment robot (9) (Robot No. 9) for surface treatment (sanding) of the cut injection molded product (10). As shown in FIG. 28, the polishing and punching robot (4), which is Robot No. 4 for polishing (sanding) and punching the edges of the product, transfers the injection molded product (10) with the edge polishing and punching completed to the first surface treatment robot (7). At this time, the first surface treatment robot (7) is equipped with a suction pad on its joint arm, and maintains the injection molded product (10) (i.e., the injection molded product (10) with the edge polishing and punching completed) received from the polishing and punching robot (4) (Robot No. 4) in a firmly fixed state by the suction pressure acting on the suction pad.

[0057] FIGS. 28 to 33 illustrate a process in which the polishing and punching robot (4) transfers the injection molded product (10), which has completed edge polishing and punching, to the primary surface treatment robot (7). That is, the suction pressure of the suction pad provided in the polishing and punching robot (4) is released, and the suction pressure of the suction pad of the primary surface treatment robot (7) is applied, so that the injection molded product (10), which has completed edge polishing and punching, is transferred from the polishing and punching robot (4) to the primary surface treatment robot (7) (Robot No. 7).

[0058] Meanwhile, in the present invention, the primary fixed sanding paper support system (8) (machine No. 8) can be described as a fixed sanding paper and negative pressure motor system. Referring to FIG. 34, a negative pressure generating funnel is installed in a vertically oriented L-shaped sanding paper (SP) support tube, so that positive pressure acts on one side of the sanding paper (SP) supplied to the end of the L-shaped sanding paper (SP) support tube, and negative pressure acts on the negative pressure generating funnel, thereby supporting the sanding paper (SP) so that it is stably fixed without moving at the end of the sanding paper (SP) support tube. At this time, the negative pressure generating funnel is installed to communicate with the interior of the L-shaped sandpaper (SP) mounting support tube, and an observation suction hole is provided at the upper end of the sandpaper (SP) mounting support tube. An external suction device, although not shown, is connected to the interior of the negative pressure generating funnel via a connecting pipe such as a connecting hose. As suction pressure is applied from the suction device to the interior of the negative pressure generating funnel, the interior of the sandpaper (SP) supporting tube, and the observation suction hole, positive pressure is applied to one side of the sandpaper (SP) supplied to the end of the sandpaper (SP) supporting tube, and negative pressure due to the suction pressure is applied to the negative pressure generating funnel, the interior of the sandpaper (SP) supporting tube, and the observation suction hole. Consequently, the sandpaper (SP) can be supported to be stably fixed at the end of the L-shaped sandpaper (SP) mounting support tube without being moved. That is, the sandpaper (SP) for polishing can be stably maintained in a horizontally fixed and supported state by the fixed sandpaper support system (5) set up in a vertical direction. That is, the primary fixed sandpaper support system (8) (for sanding the surface of the injection molded product (10)) has the same function as the fixed sandpaper support system (5), which is machine number 5, and the same negative pressure system is applied.However, the above-mentioned first fixed sanding paper support system (8) is a machine that enables sanding of the product's surface by installing the sandpaper (SP) at a right angle to the support, that is, by installing the L-shaped sandpaper (SP) support tube at a right angle.

[0059] In the present invention, the primary surface treatment robot (7) is driven to process the surface of the injection molded product (10) in the first stage. As shown in FIGS. 33 and 34, the injection molded product (10), which has completed edge polishing and punching, is transferred from the polishing and punching robot (4) to the primary surface treatment robot (7) (Robot No. 7), and the primary surface treatment robot (7) is driven to polish (sand) the surface of the injection molded product (10). The primary surface treatment robot (7) is driven to polish (sand) the surface of the injection molded product (10), that is, the injection molded product (10) which has completed edge polishing and punching, by means of a sandpaper (SP) that is supported by a primary fixed sanding paper support system (8) and is set up at a right angle.

[0060] Meanwhile, as shown in FIGS. 36 and 37, the injection molded product (10), whose surface has been polished by the first surface treatment robot (7) (Robot No. 7), is moved and mounted on the first surface treatment injection molded product transfer table (182) by the driving of the first surface treatment robot (7).

[0061] Next, as illustrated in FIGS. 37 and 38, the secondary surface treatment robot (9) (Robot No. 9) picks up the primary surface treatment injection molded product (10) mounted on the primary surface treatment injection molded product transfer table (182). At this time, a suction pad is also provided on the joint arm of the secondary surface treatment robot (9), and the suction pressure of the suction pad causes the secondary surface treatment robot (9) to pick up the injection molded product (10) from the primary surface treatment injection molded product transfer table (182) and maintain it in a stably fixed state.

[0062] In the present invention, the secondary surface treatment robot (9) is driven to process the surface of the injection molded product (10) in a secondary manner. As shown in FIG. 39, the secondary surface treatment robot (9) picks up the injection molded product (10) that has been surface-treated in a primary manner by driving the primary surface treatment robot (7) (Robot No. 7), and the secondary surface treatment robot (9) drives to perform secondary polishing (sanding) on ​​the surface of the injection molded product (10). The secondary surface treatment robot (9) drives to perform secondary polishing (sanding) on ​​the injection molded product (10), that is, the injection molded product (10) that has been surface-treated in a primary manner, by means of a sandpaper (SP) that is supported by a secondary fixed sanding paper support system (13) and is positioned at a right angle. The primary polished surface of the injection molded product, which is polished by the driving of the primary surface treatment robot (7), is polished a second time by the driving of the secondary surface treatment robot (9). That is, the surface of the injection molded product (10) is polished a second time (sanding) by the driving of the secondary surface treatment robot.

[0063] Next, as illustrated in FIGS. 40 and 41, the injection molded product (10) (i.e., the large plastic injection molded product (10) described in the present invention) whose surface has been processed a second time by driving the secondary surface treatment robot (9) is supplied to the discharge line (198). The secondary surface treatment robot (9), which is robot number 9, also has the function of picking up the product (i.e., the large plastic injection molded product (10)) that has completed secondary sanding so that it is fed into the discharge line (198), and the injection molded product (10) (large plastic injection molded product (10)) fed into the discharge line (198) in this way can be discharged to the outside by driving the discharge line (198) configured in the form of a conveyor.

[0064] Accordingly, the present invention is an automatic inspection and sanding system for processing large plastic injection molded products, comprising as its main components a robot No. 1, which is a material feeding robot (1) into an injection mold (120); a robot No. 2, which is a robot for handing over an automatic inspection and sanding system for an ejected injection molded product (10); a robot No. 3, which is a product cutting robot through vision inspection of the injection molded product (10); a robot No. 4, which is a robot for polishing (sanding) and punching the edges of the cut product; a machine No. 5, which is a fixed sanding paper and negative pressure motor system; a robot No. 6, which is a robot for replacing the sanding paper; a robot No. 7, which is a primary rough surface treatment (sanding) robot for the cut product; a machine No. 8, which is a fixed sanding paper and negative pressure motor system; a robot No. 9, which is a secondary fine surface treatment (sanding) robot for the cut product; and a machine No. 10, which is a fixed sanding paper and negative pressure motor system. By feeding material into the injection mold (120) by the material feeding robot (1), Since a large plastic product injection molded product (10) is formed, the ejected injection molded product (10) is transferred to an automatic inspection and sanding system by a robot (2) for the inspection and sanding system, the product is cut from the injection molded product (10) through vision inspection by driving a robot (3) for vision inspection and product cutting, the edges of the product are polished (sanded) and punched by a robot (4) for polishing and punching, and the surface of the product is sanded by a surface treatment robot to form a large plastic product injection molded product (10) that has been surface treated, when processing a large plastic product injection molded product (10), processing, automatic inspection, and sanding operations can be performed smoothly and precisely as a series of automated processes, and the problem of long working times is resolved, thereby increasing productivity, and the same quality sanding results can be expected when surface treating a large number of large plastic products.

[0065] Meanwhile, FIG. 42 is a front view schematically showing the structure of the internal suction chamber and suction hole of a modified embodiment of a vision inspection and cutting table, which is a main part of the present invention.

[0066] Referring to FIG. 42, the present invention is provided with a plurality of suction holes (155SH) on the upper surface of the vision inspection and cutting table (152), and the plurality of suction holes (202) are connected to a suction chamber (152SC) inside the vision inspection and cutting table (152), and a suction device is connected to the suction chamber (152SC). In the process in which the vision inspection and product cutting robot (3) cuts a product while moving using a cutting blade and accurate positioning through a vision inspection device (3VM), the injection molded product (10) is firmly suctioned and fixed by the suction pressure acting on the plurality of suction holes (152SH) on the upper surface of the vision inspection and cutting table (152). Therefore, when the vision inspection and product cutting robot (3) cuts a product while moving using a cutting blade and accurate positioning through a vision inspection device (3VM), the injection molded product (10), that is, the injection molded product (10) having by-products (10SP) on its periphery It has the effect of significantly increasing the inspection precision and cutting precision in the process of cutting by-products (10SP).

[0068] Terms such as "include," "compose," or "have" as described above, unless specifically stated otherwise, mean that the relevant component may be inherent; therefore, they should be interpreted as allowing for the inclusion of additional components rather than excluding them. All terms, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as those defined in advance, should be interpreted in accordance with their meaning in the context of the relevant technology and, unless explicitly defined in the present invention, should not be interpreted in an ideal or overly formal sense.

[0069] The foregoing description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention. Accordingly, the embodiments disclosed in the present invention are intended to explain, not limit, the technical concept of the present invention, and the scope of the technical concept of the present invention is not limited by these embodiments. The scope of protection of the present invention shall be interpreted by the claims below, and all technical concepts within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention.

[0070] Accordingly, the embodiments described above are provided to fully inform those skilled in the art of the scope of the invention and should be understood as illustrative in all respects and not restrictive, and the invention is defined only by the scope of the claims. Explanation of the symbols

[0072] 10. Injection molded part 10SP. By-product SP. Sandpaper 1. Material Feeding Robot 2. Inspection and Sanding System Handover Robot 3. Vision Inspection and Product Cutting Robot 3VM. Vision Inspection System 3CU. Cutter 4. Robots for grinding and punching 5. Fixed sanding paper support system 6. Sandpaper Replacement Robot 7. Primary Surface Treatment Robot 8. Primary fixed sanding paper support system 9. Secondary surface treatment robot 13. Secondary fixed sanding paper support system 110. Main frame for mold support 112. Material Stand Table 113. Material holder container 120. Injection mold 122. First injection mold 124. Second injection mold 132. Injection Molding Part Ejection Robot 142. By-product disposal and shredder 152. Vision Inspection and Foundation Table 152SH. Suction hole 152SC. Suction Chamber 162. Cooling shelf 164. Cooling fan 172. Transfer Shelf 174. Punching device 182. Primary Surface Treatment Injection Molding Transfer Table 192. Sandpaper Loading Magazine 198. Outbound Line

Claims

Claim 1 The system includes a material feeding robot (1) for feeding material into an injection mold (120), an inspection and sanding system transfer robot (2) for transferring an injection product (10) that has been molded and ejected from the injection mold (120) to an automatic inspection and sanding system, a vision inspection and product cutting robot (3) for cutting a product through vision inspection from the injection product (10), a polishing and punching robot (4) for polishing the edges of the cut injection product (10) and driving for punching the injection product (10), and a surface treatment robot for surface treatment of the cut injection product (10). The surface treatment robot is a robot for receiving the injection product (10), which is an edge polishing and punching product, from the polishing and punching robot (4) after the edges have been processed and punched by the polishing and punching robot (4) and performing a primary rough surface treatment of the product. An automatic inspection and sanding system for processing large plastic injection molded products, comprising a robot (7) and a secondary surface treatment robot (9) that performs a secondary fine surface treatment on a primary surface-treated product driven by the primary surface treatment robot (7), and further comprising a fixed sanding paper support system (5) that fixes the sandpaper (SP) to polish the cut injection molded product (10) with sandpaper (SP) by the polishing and punching robot (4), wherein the vision inspection and product cutting robot (3) is equipped with an active pressure system comprising a support cushion disposed inside a cutting blade unit and an air pressure active cylinder that prevents blade slippage by adjusting blade pressure for each injection molded product (10), and wherein the fixed sanding paper support system (5) includes a negative pressure generating funnel that fixes the sandpaper without movement by applying positive pressure to the upper part of the sandpaper (SP) for polishing and negative pressure to the inside. Claim 2 delete Claim 3 delete Claim 4 An automatic inspection and sanding system for processing large plastic injection molded parts, characterized in that, in claim 1, it further includes a sandpaper replacement robot (6) for replacing the sandpaper (SP) used in the fixed sandpaper support system (5) with a new sandpaper (SP). Claim 5 An automatic inspection and sanding system for processing large plastic injection molded parts, characterized in that, in claim 1, the polishing and punching robot (4) further includes a primary fixed sanding paper support system (8) that fixes the sanding paper (SP) so that the corner of the product is polished with sanding paper (SP) by the fixed sanding paper support system (5) and the punched injection molded part (10) is subjected to primary surface treatment with sanding paper (SP) by the driving of the primary surface treatment robot (7). Claim 6 An automatic inspection and sanding system for processing large plastic injection molded parts, characterized in that, in claim 1, it further includes a secondary fixed sanding paper support system (13) for fixing the sandpaper (SP) so that the product undergoes secondary surface treatment with the sandpaper (SP) by driving the secondary surface treatment robot (9) after the product undergoes primary rough surface treatment by the primary surface treatment robot (7).

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