Automatic production line integrating injection molding and online intelligent detection

Abstract

The invention discloses an automatic production line integrating injection molding and on-line intelligent detection, the automatic production line comprises a control terminal, an injection molding mechanism and a detection mechanism, the injection molding mechanism comprises a glue injection unit and an injection mold, the glue injection unit is suitable for injecting molten plastic into the injection mold, and the detection mechanism is suitable for detecting the molten plastic; the injection mold presses injected molten plastic into a workpiece, the detection mechanism comprises an image acquisition unit, a comparison unit and a storage unit, and 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 module with the normal image information stored in the storage unit and transmitting the comparison result to the control terminal, and the automatic production line integrating injection molding and online intelligent detection can effectively reduce the labor cost and is high in detection speed and precision.

Description

Technical Field

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

[0002] Injection molding, also known as injection molding, is one of the most commonly used methods in plastic processing. It can be used to produce very complex plastic parts with spatial combination. The principle of injection molding is as follows: the plastic particles are quantitatively added into the barrel of the injection molding machine. The plastic is gradually melted in a viscous flow state through the heat transfer of the barrel and the shear friction generated when the screw rotates. Then, under the high pressure of the plunger or screw, it is injected into the cavity of the closed mold with a lower temperature through the nozzle at the front end of the barrel at a high flow rate. Due to the cooling effect of the mold, the molten plastic in the mold cavity gradually solidifies and takes shape. Finally, the mold is opened to push out the injection molded part with a certain shape and size from the mold cavity.

[0003] Current injection molding production lines usually use manual visual inspection to inspect the surface of produced workpieces. However, manual visual inspection requires one inspector to be assigned to each injection molding machine, which has high labor costs. In addition, manual inspection mainly relies on the staff's own carefulness, and errors are prone to occur during the inspection process. On the other hand, manual inspection efficiency is too low, which is not conducive to rapid production. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to invent an automatic production line that integrates injection molding and online intelligent detection, which can effectively reduce labor costs and has high detection speed and accuracy.

[0005] One of the purposes of the present invention adopts the following technical solution:

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

[0007] Control terminal;

[0008] The injection molding mechanism comprises an injection unit and an injection mold, wherein the injection unit is suitable for injecting molten plastic into the injection mold, and the injection mold molds the injected molten plastic into a workpiece;

[0009] The detection mechanism includes an image acquisition unit, a comparison unit and a storage unit, wherein the image acquisition module is suitable for acquiring image information of a workpiece at multiple angles and transmitting the acquired image information to the comparison unit, and the comparison unit is suitable for comparing the image information acquired by the image acquisition module with the normal image information stored in the storage unit and transmitting the comparison result to the control terminal;

[0010] A transfer mechanism, wherein the transfer mechanism is suitable for transferring the workpiece molded by the injection molding mechanism to the detection mechanism.

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

[0012] Furthermore, the opening is arranged at the center of the light source panel.

[0013] Furthermore, the transfer mechanism includes a first material picking mechanism and a second material picking mechanism, the first material picking mechanism includes a four-axis horizontal manipulator located above the injection molding mechanism and a first material picking fixture installed at the end of the four-axis horizontal manipulator, the four-axis horizontal manipulator is suitable for driving the first material picking fixture to reciprocate between the injection mold position and the preset material picking position, the first material picking fixture is suitable for grabbing the workpiece in the injection mold when the four-axis horizontal manipulator moves to the injection mold position, and releasing the workpiece when the four-axis horizontal manipulator moves to the preset material picking position, the second material picking mechanism includes a six-axis robot and a second material picking fixture installed at the end of the six-axis robot, the six-axis robot is suitable for moving from the preset material picking position to the detection mechanism in sequence, and the second material picking fixture is suitable for grabbing the workpiece when the six-axis robot moves to the preset material picking position.

[0014] Further, the first material picking fixture includes a first fixed seat and a first material picking suction cup, and the first material picking suction cup is provided in plurality and evenly arranged on the first fixed seat. The second material picking fixture includes a second fixed seat and a second material picking suction cup, and the second material picking suction cup is provided in plurality and evenly arranged on the second fixed seat.

[0015] Furthermore, it also includes a sprue shearing mechanism, which includes a sprue shearing pliers and a waste barrel, and the sprue shearing pliers are arranged above the opening of the waste barrel.

[0016] Furthermore, the nozzle shearing mechanism also includes a third slide rail, two nozzle shears are provided, and the two nozzle shears can be slidably installed on the third slide rail and can move in opposite directions along the length direction 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. The weighing sensor is suitable for weighing the weight of the workpiece on the weighing platform, and the weight information is transmitted to the control terminal.

[0018] Furthermore, the weighing platform includes a first slide rail and two weighing units, the two weighing units can be slidably installed on the first slide rail, and can move in opposite directions along the length direction of the first slide rail. The weighing unit includes a second slide rail and two weighing seats spaced apart on the second slide rail. The placement position is composed of two placement parts, and the two placement parts are respectively arranged on the two weighing seats.

[0019] Furthermore, the injection mold includes a mold driving mechanism and two mold bodies, the two mold bodies are suitable for moving toward or away from each other under the drive of the mold driving mechanism, and each of the two mold bodies is provided with a mold cavity, and the two mold cavities are suitable for forming an injection space for accommodating injection molding material when the mold bodies are fitted together, and a glue injection port connected to the injection unit is provided at the bottom of any of the mold cavities.

[0020] Beneficial effects:

[0021] The present invention eliminates the manual inspection of workpieces in the traditional injection molding process by adding an intelligent inspection mechanism to the original injection molding machine, thereby saving labor costs, and can inspect the injection molded parts in real time, promptly discover and deal with quality problems, avoid the generation of defective products, and thus further improve the overall production efficiency. In addition, the intelligent inspection mechanism adopts high-precision sensors and advanced algorithms, which can perform all-round and high-precision quality inspection of injection molded parts. Through real-time monitoring and data analysis, the system can promptly discover abnormal situations in the production process to ensure the consistency and stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an automatic production line integrating injection molding and online intelligent detection according to the present invention;

[0023] Figure 2 It is a structural schematic diagram of another angle of an automatic production line integrating injection molding and online intelligent detection of the present invention;

[0024] Figure 3 for Figure 2 Magnified view at A in the middle;

[0025] Figure 4 It is a structural schematic diagram of an automatic production line detection mechanism integrating injection molding and online intelligent detection according to the present invention;

[0026] Figure 5 for Figure 4 Magnified view at B in the middle;

[0027] Figure 6 This is a structural schematic diagram from another angle of an automatic production line detection mechanism integrating injection molding and online intelligent detection according to the present invention.

[0028] Reference numerals:

[0029] 10. Injection molding mechanism; 101. Glue injection unit; 102. Injection mold; 1021. Mold driving 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 picking fixture; 3021. First fixed seat; 3022. First material picking suction cup; 303. Six-axis robot; 3031. Second material picking fixture; 40. Water inlet shearing mechanism; 401. Water inlet shearing pliers; 402. Waste barrel; 403. Third slide rail; 50. Weighing mechanism; 501. Weighing sensor; 502. First slide rail; 503. Second slide rail; 504. Weighing seat. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0031] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figure 1-6 As shown, an automatic production line integrating injection molding and online intelligent detection includes:

[0035] Control terminal;

[0036] The injection molding mechanism 10 comprises an injection unit 101 and an injection mold 102, wherein 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 detection mechanism 20 includes an image acquisition unit 201, a comparison unit and a storage unit. The image acquisition module is suitable for acquiring image information of a workpiece at multiple angles 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 module with the normal image information stored in the storage unit and transmitting the comparison result to the control terminal.

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

[0039] When the present invention is working, 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 surface images of the workpiece 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 work process or the waste collection device according to the comparison result.

[0040] Specifically, in this embodiment, the transfer mechanism 30 includes a first material picking mechanism and a second material picking mechanism, the first material picking mechanism includes a four-axis horizontal manipulator 301 located above the injection molding mechanism 10 and a first material picking fixture 302 installed at the end of the four-axis horizontal manipulator 301, the four-axis horizontal manipulator 301 is suitable for driving the first material picking fixture 302 to reciprocate between the position of the injection mold 102 and the preset material picking position, and the first material picking fixture 302 is suitable for the four-axis horizontal manipulator 301 When moving to the position of the injection mold 102, the workpiece in the injection mold 102 is grasped, and the four-axis horizontal manipulator 301 moves to the preset material picking position to release 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 suitable for moving from the preset material picking position to the detection mechanism 20 in sequence. The second material picking fixture 3031 is suitable for grasping the workpiece when the six-axis robot 303 moves to the preset material picking position.

[0041] During operation, the four-axis horizontal manipulator 301 drives the first material picking fixture 302 to move to the injection molding mechanism 10, and the first material picking fixture 302 grabs the workpiece that has been formed in the injection molding mechanism 10, and then the four-axis horizontal manipulator 301 moves the first material picking fixture 302 to the preset material picking position. At this time, the six-axis robot 303 drives the second material picking fixture 3031 to move to the preset material picking position, and the second material picking fixture 3031 removes the workpiece on the first material picking fixture 302, and the six-axis robot 303 drives the second material picking fixture 3031 to move to the preset material picking position. The material clamp 3031 moves to the detection mechanism 20 and displays various angles of the workpiece to the detection mechanism 20. The image acquisition unit 201 collects image information at various angles 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 work process or the waste collection device according to the comparison result.

[0042] Specifically, in this embodiment, the first material picking fixture 302 includes a first fixed seat 3021 and a first material picking suction cup 3022, and the first material picking suction cup 3022 is provided in plurality and is evenly arranged on the first fixed seat 3021. The second material picking fixture 3031 includes a second fixed seat and a second material picking suction cup, and the second material picking suction cup is provided in plurality and is evenly arranged on the second fixed seat. The first material picking suction cup 3022 and the second material picking suction cup are provided with vacuum suction cups so as to be able to adsorb the workpiece. In addition, the first material picking suction cup 3022 and the second material picking suction cup in the present invention may also adopt clamps.

[0043] In addition, the image acquisition unit 201 in the present invention includes a light source board 2011 and a CC camera 2012. The light source board 2011 is provided with an opening for the CC camera 2012 to extend out. The light source board 2011 is capable of providing lighting for the workpiece to facilitate the CC camera 2012 to capture the surface image of the workpiece. Furthermore, the opening is arranged at the center of the light source board 2011 to avoid shadows on the workpiece surface when the CC camera 2012 captures the surface image of the workpiece, thereby affecting the accuracy of the comparison unit during comparison.

[0044] Specifically, in order to prevent workpieces with cavities or internal gaps from flowing into the next process, in this embodiment, a weighing mechanism 50 is also included. 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. The weighing sensor 501 is suitable for weighing the weight of the workpiece on the weighing platform, and the weight information is transmitted to the control terminal.

[0045] During operation, the six-axis robot 303 first transfers the workpiece to the weighing platform, and the weighing sensor 501 weighs the workpiece and transmits the measurement result to the control terminal. If there is a cavity in the workpiece, the weight of the weighed workpiece will be less than the weight of the normal workpiece. At this time, 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 weighed workpiece will be equal to the weight of the normal workpiece. At this time, the control terminal controls the six-axis robot 303 to transfer the workpiece to the detection mechanism 20, and the detection mechanism 20 detects the surface of the workpiece.

[0046] Specifically, due to the different specifications of injection molded products, the sizes of workpieces are also different. Therefore, in this embodiment, the weighing platform includes a first slide rail 502 and two weighing units. The two weighing units can be slidably installed on the first slide rail 502 and can move in opposite directions along the length direction 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 arranged 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, in order to facilitate the removal of the sprue on the injection molded workpiece, in this embodiment, the automatic production line integrating injection molding and online intelligent detection also includes a sprue cutting mechanism 40, and the sprue cutting mechanism 40 includes a sprue cutting pliers 401 and a waste barrel 402, and the sprue cutting pliers 401 are arranged above the opening of the waste barrel 402. When in use, the six-axis robot 303 transfers the workpiece that has passed the inspection of the inspection mechanism 20 to the position of the sprue cutting pliers 401, and the sprue cutting pliers 401 cuts off the sprue on the workpiece. However, when the sprue cutting pliers 401 directly cuts off the sprue of the workpiece, brittle cracking is likely to occur. Therefore, in this embodiment, the sprue cutting pliers 401 adopt pneumatic hot pliers. When working, the heating wire wrapped around the surface of the sprue cutting pliers 401 will heat the sprue cutting pliers 401, and then the six-axis robot 303 transfers the workpiece to the jaws of the sprue cutting pliers 401, and the sprue cutting pliers 401 cuts off the workpiece.

[0049] Specifically, due to the different specifications of injection molded products and the different sizes of workpieces, the sprue shearing mechanism 40 in the present test also includes a third slide rail 403, and two sprue cutters 401 are provided, and the two sprue cutters 401 can be slidably installed on the third slide rail 403, and can move in opposite directions along the length direction of the third slide rail 403. With this arrangement, the staff can adjust the distance between the two sprue cutters 401 according to the width of the workpiece so that the sprue cutters 401 can adapt 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 suitable for moving toward or away from each other under the drive of the mold driving mechanism 1021. A mold cavity is provided on each of the two mold bodies 1022. The two mold cavities are suitable for forming an injection space for accommodating injection material when the mold bodies 1022 are fitted together. A glue injection port connected to the injection unit 101 is provided at the bottom of any one of the mold cavities.

[0051] Specifically, the glue injection unit 101 includes a glue injection frame, which is composed of a glue injection head plate and a glue injection tail plate which are arranged in parallel at intervals, and two side plates arranged between the glue injection head plate and the glue injection tail plate, the two side plates are arranged in parallel at intervals, and the two ends of the side plates are respectively connected to the glue injection head plate and the glue injection tail plate as a whole, the glue injection head plate is provided with a glue melt cylinder mounting hole, the glue injection tail plate is provided with a screw rod mounting hole, the glue melt cylinder mounting hole is coaxially arranged with the screw rod mounting hole, and the upper ends of the two side plates are provided with slide rails;

[0052] The glue melting mechanism comprises a glue melting cylinder installed in the glue melting cylinder installation hole, a screw installed in the glue melting cylinder, and a glue melting driving unit arranged at the rear end of the glue melting cylinder and drivingly connected to the screw, wherein the glue melting driving unit is used to drive the screw to rotate in the glue melting cylinder, the glue melting driving unit is arranged in the glue injection frame, and a sliding seat slidably matched with a slide rail is arranged on the side of the glue melting driving unit;

[0053] The glue injection mechanism includes a screw rod installed in the screw rod installation hole through a bearing and a glue injection drive unit installed on the glue injection tail plate and transmission connected to the screw rod. The front end of the screw rod is threadedly connected to the melt glue drive unit. The glue injection drive unit is suitable for driving the screw rod to rotate so as to drive the melt glue drive unit threadedly connected to the screw rod to move forward and backward.

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

[0055] The above content is a further detailed description of the present invention in combination with specific implementation methods. It cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the scope of protection determined by the claims submitted for the present invention.

Claims

1. An automatic production line integrating injection molding and online intelligent detection, characterized in that: include, Control terminal; The injection molding mechanism comprises an injection unit and an injection mold, wherein the injection unit is suitable for injecting molten plastic into the injection mold, and the injection mold molds the injected molten plastic into a workpiece; The detection mechanism includes an image acquisition unit, a comparison unit and a storage unit, wherein the image acquisition module is suitable for acquiring image information of a workpiece at multiple angles and transmitting the acquired image information to the comparison unit, and the comparison unit is suitable for comparing the image information acquired by the image acquisition module with the normal image information stored in the storage unit and transmitting the comparison result to the control terminal; A transfer mechanism, wherein the transfer mechanism is suitable for transferring the workpiece molded by the injection molding mechanism to the detection mechanism.

2. The automatic production line integrating injection molding and online intelligent detection according to claim 1 is characterized in that: The image acquisition unit includes a light source board and a CC camera, and the light source board is provided with an opening for the CC camera to extend out.

3. The automatic production line integrating injection molding and online intelligent detection according to claim 2 is characterized in that: The opening is disposed at the center of the light source panel.

4. The automatic production line integrating injection molding and online intelligent detection according to claim 1 is characterized in that: The transfer mechanism includes a first material picking mechanism and a second material picking mechanism. The first material picking mechanism includes a four-axis horizontal manipulator located above the injection molding mechanism and a first material picking fixture installed at the end of the four-axis horizontal manipulator. The four-axis horizontal manipulator is suitable for driving the first material picking fixture to reciprocate between the injection mold position and the preset material picking position. The first material picking fixture is suitable for grabbing the workpiece in the injection mold when the four-axis horizontal manipulator moves to the injection mold position, and releasing the workpiece when the four-axis horizontal manipulator moves to the preset material picking position. The second material picking mechanism includes a six-axis robot and a second material picking fixture installed at the end of the six-axis robot. The six-axis robot is suitable for moving from the preset material picking position to the detection mechanism in sequence. The second material picking fixture is suitable for grabbing the workpiece when the six-axis robot moves to the preset material picking position.

5. The automatic production line integrating injection molding and online intelligent detection according to claim 4 is characterized in that: The first material picking fixture includes a first fixed seat and a first material picking suction cup, and the first material picking suction cup is provided in plurality and evenly arranged on the first fixed seat. The second material picking fixture includes a second fixed seat and a second material picking suction cup, and the second material picking suction cup is provided in plurality and evenly arranged on the second fixed seat.

6. The automatic production line integrating injection molding and online intelligent detection according to claim 1 is characterized in that: It also includes a nozzle shearing mechanism, which includes a nozzle shearing pliers and a waste barrel, and the nozzle shearing pliers are arranged above the opening of the waste barrel.

7. The automatic production line integrating injection molding and online intelligent detection according to claim 6 is characterized in that: The nozzle shearing mechanism also includes a third slide rail. Two nozzle shearing pliers are provided. The two nozzle shearing pliers can be slidably installed on the third slide rail and can move in opposite directions along the length direction of the third slide rail.

8. The automatic production line integrating injection molding and online intelligent detection according to claim 1 is characterized in that: 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. The weighing sensor is suitable for weighing the weight of the workpiece on the weighing platform and transmitting the weight information to the control terminal.

9. The automatic production line integrating injection molding and online intelligent detection according to claim 8, characterized in that: The weighing platform includes a first slide rail and two weighing units. The two weighing units can be slidably installed on the first slide rail and can move in opposite directions along the length direction of the first slide rail. The weighing unit includes a second slide rail and two weighing seats spaced apart on the second slide rail. The placement position is composed of two placement parts, and the two placement parts are respectively arranged on the two weighing seats.

10. The automatic production line integrating injection molding and online intelligent detection according to claim 1, characterized in that: The injection mold includes a mold driving mechanism and two mold bodies. The two mold bodies are suitable for moving toward or away from each other under the drive of the mold driving mechanism. A mold cavity is respectively provided on the two mold bodies. The two mold cavities are suitable for forming an injection space for accommodating injection material when the mold bodies are fitted together. A glue injection port connected to the glue injection unit is provided at the bottom of any of the mold cavities.

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