An automatic production line integrating injection molding and online intelligent detection

Abstract

The application discloses an automatic production line integrating injection molding and online intelligent detection, which comprises a control terminal, an injection mechanism and a detection mechanism. The injection mechanism comprises a glue injection unit and an injection mold. The glue injection unit is suitable for injecting molten plastic into the injection mold. The injection mold is used for molding the injected molten plastic into a workpiece. The detection mechanism comprises an image acquisition unit, a comparison unit and a storage unit. The image acquisition unit is suitable for acquiring multi-angle image information of the workpiece and transmitting the acquired image information to the comparison unit. The comparison unit is suitable for comparing the image information acquired by the image acquisition unit with normal image information stored in the storage unit and transmitting a comparison result to the control terminal. The automatic production line integrating injection molding and online intelligent detection can effectively reduce labor cost and has high detection speed and precision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of injection molding machines, in particular to an automatic production line integrating injection molding and online intelligent detection. BACKGROUND

[0002] Injection molding, also known as injection molding, is one of the most common methods in plastic processing, which can be used to produce very complex plastic parts formed by space combination. The principle of injection molding is as follows: plastic particles are quantitatively added to the barrel of the injection molding machine, and the plastic is gradually melted into a viscous flow state by the heat transfer of the barrel and the shear friction generated by the rotation of the screw, and then injected into the cavity of the closed mold with lower temperature through the nozzle at the front end of the machine cylinder under the high pressure pushing of the plunger or screw. Due to the cooling effect of the mold, the molten plastic in the mold cavity gradually solidifies and shapes, and finally the mold is opened to push out the injection molded parts with certain shape and size from the mold cavity.

[0003] The current injection molding production line usually adopts manual visual inspection to detect the surface of the workpiece produced, but the manual visual inspection method needs to configure a detection personnel for each injection molding machine, which has high labor cost, and the manual detection mainly depends on the carefulness of the workers, which is prone to errors in the detection process. On the other hand, manual detection is too low in efficiency, which is not conducive to rapid production. SUMMARY

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present application is to provide an automatic production line integrating injection molding and online intelligent detection, which can effectively reduce labor cost and has high detection speed and precision.

[0005] One of the purposes of the present application adopts the following technical scheme:

[0006] An automatic production line integrating injection molding and online intelligent detection, comprising,

[0007] A control terminal;

[0008] An injection mechanism comprising a glue injection unit and an injection mold, the glue injection unit being adapted to inject molten plastic into the injection mold, and the injection mold being adapted to mold the injected molten plastic into a workpiece;

[0009] A detection mechanism comprising an image acquisition unit, a comparison unit and a storage unit, the image acquisition module being adapted to acquire multi-angle image information of the workpiece, and the acquired image information being transmitted to the comparison unit, the comparison unit being adapted to compare the image information acquired by the image acquisition module with the normal image information stored in the storage unit, and the comparison result being transmitted to the control terminal;

[0010] A transfer mechanism adapted to transfer a workpiece molded by the injection molding mechanism to the inspection mechanism.

[0011] Furthermore, the image acquisition unit includes a light source board and a CC camera, and the light source board has an opening for the CC camera to extend out.

[0012] Furthermore, the opening is located at the center of the light source plate.

[0013] Furthermore, the transfer mechanism includes a first material handling mechanism and a second material handling mechanism. The first material handling mechanism includes a four-axis horizontal manipulator located above the injection molding mechanism and a first material handling gripper installed at the end of the four-axis horizontal manipulator. The four-axis horizontal manipulator is adapted to drive the first material handling gripper to reciprocate between the injection mold position and the preset material handling position. The first material handling gripper is adapted to grab the workpiece in the injection mold when the four-axis horizontal manipulator moves to the injection mold position, and to release the workpiece when the four-axis horizontal manipulator moves to the preset material handling position. The second material handling mechanism includes a six-axis robot and a second material handling gripper installed at the end of the six-axis robot. The six-axis robot is adapted to move sequentially from the preset material handling position to the detection mechanism. The second material handling gripper is adapted to grab the workpiece when the six-axis robot moves to the preset material handling position.

[0014] Furthermore, the first material handling fixture includes a first fixed base and a first material handling suction cup, and multiple first material handling suction cups are provided and evenly arranged on the first fixed base. The second material handling fixture includes a second fixed base and a second material handling suction cup, and multiple second material handling suction cups are provided and evenly arranged on the second fixed base.

[0015] Furthermore, it also includes a sprue shearing mechanism, which includes sprue shearing pliers and a waste cylinder, with the sprue shearing pliers positioned above the opening of the waste cylinder.

[0016] Furthermore, the sprue shearing mechanism also includes a third slide rail, and two sprue shears are provided, and the two sprue shears are slidably mounted on the third slide rail, and can move in opposite directions along the length of the third slide rail.

[0017] Furthermore, it also includes a weighing mechanism, which includes a weighing platform and a weighing sensor. The weighing platform is provided with a placement position for placing the workpiece, and the weighing sensor is adapted to weigh the workpiece on the weighing platform and transmit the weight information to the control terminal.

[0018] Furthermore, the weighing platform includes a first slide rail and two weighing units. The two weighing units are slidably mounted on the first slide rail and can move in opposite directions along the length of the first slide rail. Each weighing unit includes a second slide rail and two weighing seats spaced apart on the second slide rail. The placement position consists of two placement parts, which are respectively placed on the two weighing seats.

[0019] Furthermore, the injection mold includes a mold driving mechanism and two mold bodies. The two mold bodies are adapted to move towards or away from each other under the drive of the mold driving mechanism. Each of the two mold bodies has a mold cavity. The two mold cavities are adapted to form an injection space for accommodating injection material when the mold bodies are fitted together. Each mold cavity has an injection port at its bottom that communicates with the injection unit.

[0020] Beneficial effects:

[0021] This invention adds an intelligent inspection mechanism to the existing injection molding machine, eliminating the need for manual inspection of workpieces in the traditional injection molding process, saving labor costs, and enabling real-time inspection of injection molded parts to promptly detect and address quality issues, preventing the production of defective products, thereby further improving overall production efficiency. In addition, the intelligent inspection mechanism uses high-precision sensors and advanced algorithms to perform comprehensive and high-precision quality inspection of injection molded parts. Through real-time monitoring and data analysis, the system can promptly detect anomalies in the production process, ensuring the consistency and stability of product quality. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an automated production line integrating injection molding and online intelligent inspection according to the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of an automated production line integrating injection molding and online intelligent inspection according to the present invention from another angle;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a schematic diagram of the structure of an automated production line inspection mechanism that integrates injection molding and online intelligent inspection according to the present invention;

[0026] Figure 5 for Figure 4 Enlarged view at point B;

[0027] Figure 6 This is a schematic diagram of the structure of an automated production line inspection mechanism that integrates injection molding and online intelligent inspection according to the present invention from another angle.

[0028] Figure label:

[0029] 10. Injection molding mechanism; 101. Injection unit; 102. Injection mold; 1021. Mold drive mechanism; 1022. Mold body; 20. Detection mechanism; 201. Image acquisition unit; 2011. Light source board; 2012. CC camera; 30. Transfer mechanism; 301. Four-axis horizontal manipulator; 302. First material handling fixture; 3021. First fixed base; 3022. First material handling suction cup; 303. Six-axis robot; 3031. Second material handling fixture; 40. Sprue shearing mechanism; 401. Sprue shearing clamp; 402. Waste material cylinder; 403. Third slide rail; 50. Weighing mechanism; 501. Weighing sensor; 502. First slide rail; 503. Second slide rail; 504. Weighing base. Detailed Implementation

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0031] In the description of this invention, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0034] like Figures 1-6 As shown, an automated production line integrating injection molding and online intelligent inspection includes:

[0035] Control terminal;

[0036] The injection mechanism 10 includes an injection unit 101 and an injection mold 102. The injection unit 101 is adapted to inject molten plastic into the injection mold 102, and the injection mold 102 molds the injected molten plastic into a workpiece.

[0037] The inspection mechanism 20 includes an image acquisition unit 201, a comparison unit, and a storage unit. The image acquisition module is adapted to acquire multi-angle image information of the workpiece and transmit the acquired image information to the comparison unit. The comparison unit is adapted to compare the image information acquired by the image acquisition module with the normal image information stored in the storage unit and transmit the comparison result to the control terminal.

[0038] The transfer mechanism 30 is adapted to transfer the workpiece molded by the injection molding mechanism 10 to the detection mechanism 20.

[0039] When the present invention is in operation, the transfer mechanism 30 transfers the workpiece injection molded by the injection molding mechanism 10 to the detection mechanism 20 for detection. The detection mechanism 20 collects images of the workpiece surface from multiple angles and generates image information that is transmitted to the comparison unit. The comparison unit compares the collected image information with the normal image information stored in the storage unit and transmits the comparison result to the control terminal. The control terminal controls the transfer mechanism 30 to transfer the workpiece to the next working process or waste collection device according to the comparison result.

[0040] Specifically, in this embodiment, the transfer mechanism 30 includes a first material handling mechanism and a second material handling mechanism. The first material handling mechanism includes a four-axis horizontal manipulator 301 located above the injection molding mechanism 10 and a first material handling clamp 302 mounted at the end of the four-axis horizontal manipulator 301. The four-axis horizontal manipulator 301 is adapted to drive the first material handling clamp 302 to reciprocate between the position of the injection mold 102 and the preset material handling position. The first material handling clamp 302 is adapted to move between the four-axis horizontal manipulator 301 and the preset material handling position. When the robot moves to the injection mold 102 position, it grabs the workpiece in the injection mold 102 and moves the four-axis horizontal robot 301 to the preset material picking position, and releases the workpiece. The second material picking mechanism includes a six-axis robot 303 and a second material picking fixture 3031 installed at the end of the six-axis robot 303. The six-axis robot 303 is adapted to move sequentially from the preset material picking position to the detection mechanism 20. The second material picking fixture 3031 is adapted to grab the workpiece when the six-axis robot 303 moves to the preset material picking position.

[0041] During operation, the four-axis horizontal manipulator 301 moves the first material handling fixture 302 to the injection molding mechanism 10. The first material handling fixture 302 grips the molded workpiece in the injection molding mechanism 10. Then, the four-axis horizontal manipulator 301 moves the first material handling fixture 302 to a preset material handling position. At this time, the six-axis robot 303 moves the second material handling fixture 3031 to the preset material handling position. The second material handling fixture 3031 removes the workpiece from the first material handling fixture 302. The six-axis robot 303 then moves the second material handling fixture 3031 to the preset material handling position. The material clamp 3031 moves to the inspection mechanism 20 and displays the workpiece from various angles to the inspection mechanism 20. The image acquisition unit 201 acquires image information from each angle and transmits the image information to the comparison unit. The comparison unit compares the collected image information with the normal image information stored in the storage unit and transmits the comparison result to the control terminal. The control terminal controls the transfer mechanism 30 to transfer the workpiece to the next workflow or waste collection device based on the comparison result.

[0042] Specifically, in this embodiment, the first material handling fixture 302 includes a first fixed base 3021 and a first material handling suction cup 3022. Multiple first material handling suction cups 3022 are provided and are evenly arranged on the first fixed base 3021. The second material handling fixture 3031 includes a second fixed base and a second material handling suction cup. Multiple second material handling suction cups are provided and are evenly arranged on the second fixed base. The first material handling suction cup 3022 and the second material handling suction cup are vacuum suction cups to be able to adsorb workpieces. In addition, the first material handling suction cup 3022 and the second material handling suction cup in this invention can also be grippers.

[0043] Furthermore, the image acquisition unit 201 described in this invention includes a light source plate 2011 and a CC camera 2012. The light source plate 2011 has an opening for the CC camera 2012 to extend out. The light source plate 2011 can provide illumination to the workpiece to facilitate the CC camera 2012 in capturing images of the workpiece surface. Further, the opening is located at the center of the light source plate 2011 to avoid shadows on the workpiece surface when the CC camera 2012 captures images of the workpiece surface, which would affect the accuracy of the comparison unit during comparison.

[0044] Specifically, to prevent workpieces with cavities or internal gaps from flowing into the next process, this embodiment also includes a weighing mechanism 50. The weighing mechanism 50 includes a weighing platform and a weighing sensor 501. The weighing platform is provided with a placement position for placing the workpiece, and the weighing sensor 501 is adapted to weigh the workpiece on the weighing platform and transmit the weight information to the control terminal.

[0045] During operation, the six-axis robot 303 first transfers the workpiece to the weighing platform, where the weighing sensor 501 weighs the workpiece and transmits the measurement result to the control terminal. If there is a cavity inside the workpiece, the weight of the workpiece being weighed will be less than the weight of a normal workpiece. In this case, the control terminal controls the six-axis robot 303 to transfer the workpiece to the waste area. If there is no cavity inside the workpiece, the weight of the workpiece being weighed will be equal to the weight of a normal workpiece. In this case, the control terminal controls the six-axis robot 303 to transfer the workpiece to the inspection mechanism 20, where the inspection mechanism 20 inspects the surface of the workpiece.

[0046] Specifically, since the specifications of injection molded products are different and the size of the workpieces are also different, in this embodiment, the weighing platform includes a first slide rail 502 and two weighing units. The two weighing units are slidably mounted on the first slide rail 502 and can move in opposite directions along the length of the first slide rail 502. The weighing unit includes a second slide rail 503 and two weighing seats 504 spaced apart on the second slide rail 503. The placement position is composed of two placement parts, and the two placement parts are respectively placed on the two weighing seats 504.

[0047] During operation, the distance between the two weighing seats 504 on the same second slide rail 503 is adjusted according to the length of the workpiece to match the length of the workpiece. At the same time, the distance between the two weighing units is adjusted according to the width of the workpiece to match the width of the workpiece, so that the workpiece can be placed on the weighing platform.

[0048] Specifically, to facilitate the removal of sprue marks from injection-molded workpieces, in this embodiment, the automated production line integrating injection molding and online intelligent inspection also includes a sprue cutting mechanism 40. The sprue cutting mechanism 40 includes a sprue cutter 401 and a waste cylinder 402. The sprue cutter 401 is positioned above the opening of the waste cylinder 402. During use, the six-axis robot 303 transfers the workpiece that has passed the inspection by the inspection mechanism 20 to the sprue cutter 401, where the sprue cutter 401 cuts off the sprue marks. However, when the sprue cutter 401 directly cuts off the sprue marks, it is prone to brittle fracture. Therefore, in this embodiment, the sprue cutter 401 is a pneumatic heated clamp. During operation, the heating wire wrapped around the surface of the sprue cutter 401 heats the sprue cutter 401. Then, the six-axis robot 303 transfers the workpiece to the jaws of the sprue cutter 401, where the sprue cutter 401 cuts off the workpiece.

[0049] Specifically, since the specifications of injection molded products are different and the size of the workpieces are also different, the sprue shearing mechanism 40 described in this test also includes a third slide rail 403. There are two sprue shears 401, and the two sprue shears 401 are slidably mounted on the third slide rail 403 and can move in opposite directions along the length of the third slide rail 403. With this arrangement, the operator can adjust the distance between the two sprue shears 401 according to the width of the workpiece so that the sprue shears 401 can be adapted to the workpiece.

[0050] Preferably, in this embodiment, the injection mold 102 includes a mold driving mechanism 1021 and two mold bodies 1022. The two mold bodies 1022 are adapted to move towards or away from each other under the drive of the mold driving mechanism 1021. Each of the two mold bodies 1022 has a mold cavity. The two mold cavities are adapted to form an injection space for accommodating injection material when the mold bodies 1022 are fitted together. The bottom of any one of the mold cavities has an injection port that communicates with the injection unit 101.

[0051] Specifically, the injection unit 101 includes an injection frame, which consists of an injection head plate and an injection tail plate arranged at intervals and parallel to each other, and two side plates arranged between the injection head plate and the injection tail plate. The two side plates are arranged at intervals and parallel to each other, and the two ends of the side plates are respectively connected to the injection head plate and the injection tail plate. The injection head plate is provided with a melt cylinder mounting hole, and the injection tail plate is provided with a lead screw mounting hole. The melt cylinder mounting hole and the lead screw mounting hole are coaxially arranged, and the upper ends of the two side plates are equipped with slide rails.

[0052] The glue melting mechanism includes a glue melting cylinder installed in the glue melting cylinder mounting hole, a screw installed in the glue melting cylinder, and a glue melting drive unit disposed at the rear end of the glue melting cylinder and connected to the screw for transmission. The glue melting drive unit is used to drive the screw to rotate in the glue melting cylinder. The glue melting drive unit is disposed in the glue injection frame, and a sliding seat that slides with the slide rail is provided on the side of the glue melting drive unit.

[0053] The glue injection mechanism includes a lead screw mounted in the lead screw mounting hole via a bearing and a glue injection drive unit mounted on the glue injection tail plate and driven by the lead screw. The front end of the lead screw is threadedly connected to the glue injection drive unit. The glue injection drive unit is adapted to drive the lead screw to rotate, so as to drive the glue injection drive unit threadedly connected to the lead screw to move back and forth.

[0054] This invention adds an intelligent inspection mechanism 20 to the existing injection molding machine, thereby eliminating the manual inspection of workpieces in the traditional injection molding process, saving labor costs. The inspection mechanism 20 has high inspection efficiency, which can effectively improve production efficiency. At the same time, the use of image recognition for comparison and inspection has high accuracy, which can effectively prevent workpieces with surface defects from flowing into the next process.

[0055] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present invention, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted herein.

Claims

1. An automated production line integrating injection molding and online intelligent inspection, characterized in that: include, Control terminal; An injection molding mechanism includes an injection unit and an injection mold. The injection unit is adapted to inject molten plastic into the injection mold, and the injection mold molds the injected molten plastic into a workpiece. The inspection mechanism includes an image acquisition unit, a comparison unit, and a storage unit. The image acquisition unit is adapted to acquire multi-angle image information of the workpiece and transmit the acquired image information to the comparison unit. The comparison unit is adapted to compare the image information acquired by the image acquisition unit with the normal image information stored in the storage unit and transmit the comparison result to the control terminal. A transfer mechanism, the transfer mechanism being adapted to transfer the workpiece molded by the injection molding mechanism to the inspection mechanism; The image acquisition unit includes a light source board and a CCD camera, and the light source board has an opening for the CCD camera to extend out. The transfer mechanism includes a first material handling mechanism and a second material handling mechanism. The first material handling mechanism includes a four-axis horizontal manipulator located above the injection molding mechanism and a first material handling gripper installed at the end of the four-axis horizontal manipulator. The four-axis horizontal manipulator is adapted to drive the first material handling gripper to reciprocate between the injection mold position and the preset material handling position. The first material handling gripper is adapted to grasp the workpiece in the injection mold when the four-axis horizontal manipulator moves to the injection mold position and to release the workpiece when the four-axis horizontal manipulator moves to the preset material handling position. The second material handling mechanism includes a six-axis robot and a second material handling gripper installed at the end of the six-axis robot. The six-axis robot is adapted to move sequentially from the preset material handling position to the detection mechanism. The second material handling gripper is adapted to grasp the workpiece when the six-axis robot moves to the preset material handling position. The first material handling fixture includes a first fixed base and a first material handling suction cup. Multiple first material handling suction cups are provided and are evenly arranged on the first fixed base. The second material handling fixture includes a second fixed base and a second material handling suction cup. Multiple second material handling suction cups are provided and are evenly arranged on the second fixed base. It also includes a weighing mechanism, which includes a weighing platform and a weighing sensor. The weighing platform is provided with a placement position for placing the workpiece, and the weighing sensor is adapted to weigh the workpiece on the weighing platform and transmit the weight information to the control terminal.

2. The automated production line integrating injection molding and online intelligent inspection according to claim 1, characterized in that: The opening is located at the center of the light source plate.

3. The automated production line integrating injection molding and online intelligent inspection according to claim 1, characterized in that: It also includes a sprue shearing mechanism, which includes sprue shearing pliers and a waste cylinder, with the sprue shearing pliers positioned above the opening of the waste cylinder.

4. The automated production line integrating injection molding and online intelligent inspection according to claim 3, characterized in that: The sprue shearing mechanism also includes a third slide rail. Two sprue shears are provided, and the two sprue shears are slidably mounted on the third slide rail and can move in opposite directions along the length of the third slide rail.

5. The automated production line integrating injection molding and online intelligent inspection according to claim 4, characterized in that: The weighing platform includes a first slide rail and two weighing units. The two weighing units are slidably mounted on the first slide rail and can move in opposite directions along the length of the first slide rail. Each weighing unit includes a second slide rail and two weighing seats spaced apart on the second slide rail. The placement position consists of two placement parts, which are respectively placed on the two weighing seats.

6. The automated production line integrating injection molding and online intelligent inspection according to claim 1, characterized in that: The injection mold includes a mold drive mechanism and two mold bodies. The two mold bodies are adapted to move towards or away from each other under the drive of the mold drive mechanism. Each of the two mold bodies has a mold cavity. The two mold cavities are adapted to form an injection space for accommodating injection material when the mold bodies are fitted together. Each mold cavity has an injection port at the bottom that communicates with the injection unit.

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