Product material shortage detection device based on CCD (Charge Coupled Device) camera

Abstract

The utility model discloses a CCD camera-based product shortage detection device, which comprises an injection molding machine, the right side of the rear part of the upper end of the injection molding machine is fixedly connected with a support module, the left part of the upper end of the support module is provided with a transverse mechanical arm, the front part of the transverse mechanical arm is provided with a vertical mechanical arm, and the lower part of the vertical mechanical arm is provided with a suction cup. A fixing rod is fixedly connected to the left portion of the lower end of the supporting module, a camera is installed on the lower portion of the front end of the fixing rod, and a turnover device is fixedly connected to the front side of the left end of the injection molding machine. According to the utility model, through the overturning device, an object can be photographed preliminarily and then overturned secondarily for photographing inspection, so that a multi-directional visual angle can be better eliminated, meanwhile, the labor intensity of operation is reduced to a greater extent, defective products are prevented from flowing into the next process to cause customer complaints, and the practicability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of detecting the appearance of injection molded parts, in particular to a product material shortage detection device based on a CCD camera. Background Technique

[0002] The product material shortage detection device based on a CCD camera is an efficient and accurate automatic detection device based on machine vision technology. This device captures images of products through a CCD camera and uses image processing technology to detect material shortage of products.

[0003] The appearance of traditional injection molded parts products is inspected manually by visual inspection. After long-term operation, operators will inevitably have visual fatigue, resulting in products with material shortage flowing to the next process. Therefore, a product material shortage detection device based on a CCD camera is needed.

[0004] Chinese Patent Publication No. CN209166344U discloses including a support table, a mounting seat, a camera, a detection platform and a background light source, and also includes a first cylinder, a second cylinder and a bracket. The first cylinder is horizontally arranged on the support table, the second cylinder is vertically arranged on the support table, the mounting seat is arranged on the second cylinder, the brackets are arranged on both sides of the detection platform, a rectangular groove is opened on the detection platform, and two stoppers are arranged in parallel on each of the two side walls in the width direction of the rectangular groove and the stoppers on the two side walls are in the same position.

[0005] The above patent still has the following defects in the implementation process:

[0006] In the implementation process, it is necessary to adjust the background light source through the mounting seat to ensure that the brightness of the object can take clearer photos. This solution cannot take photos of the object from multiple angles better, and there will inevitably be a field of view blind area during use, reducing work efficiency. Summary of the Utility Model

[0007] The main purpose of the utility model is to provide a product material shortage detection device based on a CCD camera, which can effectively solve the problem of affecting product quality by relying on manual inspection of product appearance.

[0008] To achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A product material shortage detection device based on a CCD camera includes an injection molding machine. A support module is fixedly connected to the upper right rear part of the injection molding machine. A transverse robotic arm is installed on the upper left part of the support module. A vertical robotic arm is installed in the front of the transverse robotic arm. A suction cup is installed at the lower part of the vertical robotic arm. A fixed rod is fixedly connected to the lower left part of the support module. A camera is installed at the lower front end of the fixed rod. A flipping device is fixedly connected to the front left side of the injection molding machine.

[0010] Preferably, it includes a conveyor belt and a storage device. The conveyor belt is located at the left part of the injection molding machine and the lower part of the vertical robotic arm, and the storage device is located at the lower part of the vertical robotic arm and the left part of the conveyor belt.

[0011] Preferably, the flipping device includes an outer frame which is fixedly connected to the upper side of the front part of the left end of the injection molding machine. A driving motor is fixedly connected to the middle part of the front bottom wall of the outer frame. The output end of the driving motor is fixedly connected to a transmission mechanism. Arc-shaped holes are provided at the middle parts of the rear sides of the left and right ends of the outer frame. The inner surfaces of the two arc-shaped holes are both slidably connected with a pulling mechanism, and a placing mechanism is fixedly connected between the two pulling mechanisms.

[0012] Preferably, the placing mechanism includes a rectangular block which is located at the rear side inside the outer frame. Column rods are fixedly connected to the middle parts of the left end and the rear end of the rectangular block respectively. The two column rods are slidably connected to the inner surface of the arc-shaped hole. Limiting plates are fixedly connected to the left and right sides and the rear side of the upper end of the rectangular block together.

[0013] Preferably, the pulling mechanism includes a rotating plate which is fixedly connected to the outer surface of the column rod. An arc-shaped rod is slidably connected to the lower part of the rotating plate. A reciprocating lead screw is threadedly connected to the inner cavity of the arc-shaped rod. The reciprocating lead screw is rotatably connected to the front end of a rectangular plate at the rear part of the upper end of the outer frame.

[0014] Preferably, the transmission mechanism includes two pulley 1s and two pulley 2s. The two pulley 1s are respectively fixedly connected to the front parts of the outer surfaces of the reciprocating lead screws on the same side. The two pulley 2s are fixedly connected to the output end of the driving motor together. A transmission belt is wound and connected between the pulley 1 and the pulley 2 at the same horizontal level.

[0015] Preferably, the conveyor belt is an up-and-down inclined conveyor belt.

[0016] Preferably, the storage device includes a box body, a handrail and universal wheels. Universal wheels are fixedly connected to the four corners of the bottom end of the box body, and a handrail is fixedly connected to the lower part of the rear end of the box body.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] Through the installed flipping device, the articles can be photographed initially and then flipped a second time for photographing inspection, so that it is possible to better eliminate multi-directional perspectives, avoid visual fatigue caused by manual inspection, and at the same time greatly reduce the labor intensity of the operation, prevent defective products from flowing into the next process and causing customer complaints, and increase the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the utility model;

[0020] Figure 2 Structural schematic diagram of the flipping device of the present utility model;

[0021] Figure 3 Structural schematic diagram of the placement mechanism and the pulling mechanism of the present utility model;

[0022] Figure 4 Structural schematic diagram of the transmission mechanism of the present utility model.

[0023] In the figure: 1, injection molding machine; 2, support module; 3, vertical robotic arm; 4, horizontal robotic arm; 5, camera; 6, suction cup; 7, flipping device; 8, storage device; 9, conveyor belt; 10, fixed rod; 71, outer frame; 72, placement mechanism; 73, drive motor; 74, transmission mechanism; 75, pulling mechanism; 721, rectangular block; 722, column rod; 723, limit plate; 751, reciprocating lead screw; 752, arc rod; 753, rotating plate; 741, pulley one; 742, transmission belt; 743, pulley two. Specific embodiments

[0024] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Embodiment 1

[0026] As Figure 1 shown, this embodiment provides a product material shortage detection device based on a CCD camera, including an injection molding machine 1. The right side of the rear part of the upper end of the injection molding machine 1 is fixedly connected with a support module 2. The left part of the upper end of the support module 2 is provided with a horizontal robotic arm 4. The front part of the horizontal robotic arm 4 is provided with a vertical robotic arm 3. The lower part of the vertical robotic arm 3 is provided with a suction cup 6. The left part of the lower end of the support module 2 is fixedly connected with a fixed rod 10. The lower part of the front end of the fixed rod 10 is provided with a camera 5. The left front side of the injection molding machine 1 is fixedly connected with a flipping device 7;

[0027] The storage device 8 includes a box body, a handrail and universal wheels. Universal wheels are fixedly connected to the four corners of the bottom end of the box body, and a handrail is fixedly connected to the lower part of the rear end of the box body.

[0028] The injection molding machine 1 is the main molding equipment for making various shaped plastic products by using thermoplastic plastics or thermosetting plastics with plastic molding dies.

[0029] After the injection molding machine 1 opens the mold for injection molding, the vertical robotic arm 3 moves downward to the correct position. The vertical robotic arm 3 adsorbs the product through the suction cup 6. After the product is adsorbed, the vertical robotic arm 3 moves upward and then flips to a horizontal state. It extracts the product in front of the camera 5 by horizontally moving through the horizontal robotic arm 4. According to the product contour, the camera 5 performs position offset correction. The camera 5 program starts taking pictures. The camera 5 detects and compares the pictures of the burrs and missing materials on the product ring and the NG sample pictures with the pictures of normal products. Then the product is placed in the flipping device 7 for flipping. After flipping is completed, the comparison is carried out again. For the products that pass the detection and comparison, the vertical robotic arm 3 automatically places the products on the conveyor belt 9 to enter the next process. For the products that fail the detection and comparison, the robotic arm automatically places the products in the storage device 8.

[0030] The camera 5 is a CCD detection camera, which is a detection tool that uses a CCD image sensor for image acquisition and processing. The horizontal robotic arm 4 refers to a robotic arm that can move horizontally (i.e., in the left-right direction) on a horizontal plane. This kind of robotic arm usually has high flexibility and accuracy, and can adjust its position in the working area according to needs to adapt to different operation requirements. The vertical robotic arm 3 refers to a robotic arm that has the ability to move and operate in the vertical direction (i.e., up and down). This kind of robotic arm is usually designed for tasks that require vertical space operation. The vertical robotic arm has high vertical movement accuracy and stability, and can ensure to maintain an accurate position and posture during the operation.

[0031] In this solution, the vertical robotic arm 3 can complete the work of lifting, rotating, and revolving, and can take pictures and detect the product in multiple directions in front of the camera 5 to ensure the integrity of its detection work.

[0032] Embodiment 2

[0033] The difference between this embodiment and Embodiment 2 is only that, referring to Figure 2 , the flipping device 7 includes an outer frame 71. The outer frame 71 is fixedly connected to the upper side of the front part of the left end of the injection molding machine 1. The middle side of the front part of the bottom wall of the outer frame 71 is fixedly connected with a driving motor 73. The output end of the driving motor 73 is fixedly connected with a transmission mechanism 74. Arc-shaped holes are opened in the middle rear sides of the left end and the right end of the outer frame 71. The inner surfaces of both arc-shaped holes are slidably connected with a pulling mechanism 75. A placing mechanism 72 is fixedly connected between the two pulling mechanisms 75.

[0034] After the product is placed on the upper part of the placing mechanism 72, by starting the driving motor 73 to drive the transmission mechanism 74 to rotate, the transmission mechanism 74 then drives the pulling mechanism 75 to move. The pulling mechanism 75 successively pulls the placing mechanism 72 to move backward and flips the placing mechanism 72 to achieve the purpose of flipping.

[0035] This design is simple and convenient, easy to operate, and can better take pictures of the product from multiple directions, enhancing the integrity of the device.

[0036] Embodiment 3

[0037] The difference between this embodiment and Embodiment 1 or 2 is only that, referring to Figure 3 , the placement mechanism 72 includes a rectangular block 721 which is located at the rear side inside the outer frame 71. Both the left end and the middle of the rear end of the rectangular block 721 are fixedly connected with column rods 722. The two column rods 722 are slidably connected to the inner surface of the arc-shaped holes. The left and right sides and the rear side of the upper end of the rectangular block 721 are commonly fixedly connected with a limiting plate 723;

[0038] The pulling mechanism 75 includes a rotating plate 753 which is fixedly connected to the outer surface of the column rod 722. The lower part of the rotating plate 753 is slidably connected with an arc-shaped rod 752. The inner cavity of the arc-shaped rod 752 is threadedly connected with a reciprocating lead screw 751. The reciprocating lead screw 751 is rotatably connected to the front end of a rectangular plate at the rear part of the upper end of the outer frame 71.

[0039] The transmission mechanism 74 drives the reciprocating lead screw 751 to rotate. Under the action of the threaded connection between the reciprocating lead screw 751 and the arc-shaped rod 752, the reciprocating lead screw 751 will move forward, and at the same time, the rotating plate 753 will be driven to move. The rotating plate 753 will drive the rectangular block 721 to continue to move and then rotate, so as to flip the product placed on the upper end of the rectangular block 721, thereby achieving the purpose of flipping.

[0040] After the operation is completed, the driving motor 73 is started to rotate again. Under the action of the reciprocating lead screw 751, the arc-shaped rod 752 will move in the opposite direction, so that the rectangular block 721 returns to its original position.

[0041] The limiting plate 723 can prevent the product from shifting during movement, which may cause inaccurate adsorption by the vertical robotic arm 3.

[0042] Referring to Figure 4 , the transmission mechanism 74 includes two first belt pulleys 741 and two second belt pulleys 743. The two first belt pulleys 741 are respectively fixedly connected to the front part of the outer surface of the reciprocating lead screw 751 on the same side. The two second belt pulleys 743 are commonly fixedly connected to the output end of the driving motor 73. A transmission belt 742 is commonly wound and connected between the first belt pulley 741 and the second belt pulley 743 at the same horizontal level.

[0043] The driving motor 73 drives the connected pulley two 743 to rotate through a coupling. The pulley two 743 then transmits the power to the pulley one 741 at the same level through the transmission belt 742, driving the pulley one 741 to rotate, and finally transmitting the power to the reciprocating lead screw 751 to achieve the purpose of the rotation of the reciprocating lead screw 751.

[0044] It should be particularly noted that the specific installation methods of the driving motor 73, the vertical robotic arm 3, and the horizontal robotic arm 4, the connection method of the circuit, and the control method adopted in the present utility model are all conventional designs, and the present utility model will not elaborate in detail.

[0045] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A product material shortage detection device based on a CCD camera, comprising an injection molding machine (1), characterized in that: On the upper right side of the rear part of the injection molding machine (1), there is a support module (2) fixedly connected. On the upper left part of the support module (2), a horizontal robotic arm (4) is installed. In the front part of the horizontal robotic arm (4), a vertical robotic arm (3) is installed. At the lower part of the vertical robotic arm (3), a suction cup (6) is installed. On the lower left part of the support module (2), a fixed rod (10) is fixedly connected. At the lower front part of the fixed rod (10), a camera (5) is installed. On the front side of the left end of the injection molding machine (1), a flipping device (7) is fixedly connected.

2. The product material shortage detection device according to claim 1, wherein: It includes a conveyor belt (9) and a storage device (8). The conveyor belt (9) is located on the left part of the injection molding machine (1) and the lower part of the vertical robotic arm (3). The storage device (8) is located on the lower part of the vertical robotic arm (3) and the left part of the conveyor belt (9).

3. The product material shortage detection device according to claim 1, characterized in that: The flipping device (7) includes an outer frame (71). The outer frame (71) is fixedly connected to the upper side of the front part of the left end of the injection molding machine (1). In the middle of the front part of the bottom wall of the outer frame (71), a driving motor (73) is fixedly connected. The output end of the driving motor (73) is fixedly connected to a transmission mechanism (74). Arc-shaped holes are formed in the middle of the rear sides of the left and right ends of the outer frame (71). A pulling mechanism (75) is slidably connected to the inner surface of each of the two arc-shaped holes. A placement mechanism (72) is fixedly connected between the two pulling mechanisms (75).

4. The product material shortage detection device according to claim 3, characterized in that: The placement mechanism (72) includes a rectangular block (721). The rectangular block (721) is located at the rear side inside the outer frame (71). Column rods (722) are fixedly connected to the middle of the left end and the rear end of the rectangular block (721). The two column rods (722) are slidably connected to the inner surface of the arc-shaped hole. Limiting plates (723) are fixedly connected to the upper left and right sides and the rear side of the rectangular block (721) together.

5. The product material shortage detection device according to claim 3, characterized in that: The pulling mechanism (75) includes a rotating plate (753). The rotating plate (753) is fixedly connected to the outer surface of the column rod (722). An arc-shaped rod (752) is slidably connected to the lower part of the rotating plate (753). A reciprocating lead screw (751) is threadedly connected to the inner cavity of the arc-shaped rod (752). The reciprocating lead screw (751) is rotatably connected to the front end of a rectangular plate at the upper rear part of the outer frame (71).

6. The product material shortage detection device according to claim 3, characterized in that: The transmission mechanism (74) includes two pulley 1s (741) and two pulley 2s (743). The two pulley 1s (741) are respectively fixedly connected to the front part of the outer surface of the reciprocating lead screw (751) on the same side. The two pulley 2s (743) are fixedly connected to the output end of the driving motor (73) together. A transmission belt (742) is wound and connected between the pulley 1 (741) and the pulley 2 (743) at the same level.

7. The product material shortage detection device according to claim 2, characterized in that: The conveyor belt (9) is an up-and-down inclined conveyor belt (9).

8. The product material shortage detection device according to claim 2, wherein: The storage device (8) includes a box body, a handrail, and universal wheels. Universal wheels are fixedly connected to the four corners of the bottom end of the box body. A handrail is fixedly connected to the lower part of the rear end of the box body.

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