Automatic classification inspection machine for defect detection of plastic products

Abstract

The invention relates to the technical field of inspection machines, and discloses a plastic defect detection and automatic classification inspection machine which comprises a machine body, a plurality of discharging ports are formed in the side surface of the machine body, a feeding plate and a discharging plate are arranged on the two sides of the machine body respectively, and a feeding roller is arranged in the machine body; the plastic defect detection module is used for collecting image information of the plastic surface and detecting defects of the plastic surface, and the plastic defect detection module is located in the machine body; according to the plastic defect detection automatic classification inspection machine, through the design of the plastic defect detection module in the machine body and the combined design of the first baffle, the second baffle and the channel in the discharging plate, defect-free plastic and defect plastic can be conveyed in different channels, meanwhile, the space structure in the machine body is fully utilized, the occupied area of machine body equipment is reduced, and the production efficiency is improved. The defective plastics can be classified and output according to the defect types of the defective plastics by utilizing the cooperation of the channel and the distribution module.

Description

Technical Field

[0001] The invention relates to the technical field of product inspection machines, and in particular to an automatic classification product inspection machine for defect detection of plastic products. Background Art

[0002] The inspection machine is used for quality inspection of plastic printed products. It can inspect the quality of the plastic itself as well as the quality of plastic processing such as laser and hot stamping to ensure the quality of plastic products before leaving the factory.

[0003] When performing quality inspection on plastics, existing inspection machines can only detect whether the plastics have defects, but cannot automatically classify the plastics according to the types of defects. Workers are required to sort defective plastics from non-defective plastics. Sorting by workers is not only inefficient, but also requires increasing the length of the conveying mechanism at the outlet end of the inspection machine, which increases the structure and space occupied by the inspection machine. Summary of the invention

[0004] In order to solve the problem that the above existing inspection machines can only detect whether the plastic has defects when performing quality inspection on the plastic, but cannot automatically classify the plastic according to the defect type of the plastic, and require staff to sort defective plastics and non-defective plastics, which is not only inefficient but also requires increasing the length of the conveying mechanism at the outlet end of the inspection machine, increasing the structure and space occupied by the inspection machine, the present invention is implemented through the following technical solutions: A plastic product defect detection automatic classification inspection machine, comprising: A machine body, wherein a plurality of discharge ports are arranged on the side surface of the machine body, a feed plate and a discharge plate are arranged on both sides of the machine body, and a feed roller is arranged inside the machine body; A plastic product defect detection module is used to collect image information of the plastic surface and detect defects on the plastic surface. The plastic product defect detection module is located inside the machine body. By collecting an image database of various defects existing in plastics, a plastic product defect database is established. Based on the plastic product defect database, an image acquisition device is installed in the inspection machine. The image information of the plastic surface collected by the image acquisition device is compared and analyzed with the image information in the plastic product defect database, so that the defect type of the plastic can be automatically detected and identified. A channel is located inside the machine body, an upper port of the channel is located on the surface of the discharge plate, a baffle plate 1 is rotatably installed in the upper port of the channel, and is used to control the opening and closing of the upper port of the channel, and at the same time control the moving direction of the plastic, a baffle plate 2 is arranged above the upper port of the channel, and is used to change the conveying direction of the plastic, and the baffle plate 2 is rotatably installed on the side plate surface of the discharge plate; The distribution module is used for classifying and conveying plastics. The distribution module is installed inside the machine body. The lower port of the channel is located above the distribution module. The surface of the distribution module corresponds to the discharge port.

[0005] Furthermore, the cross-section of the distribution module is trapezoidal, and rollers and wheels are provided inside the upper surface of the distribution module. The rollers are installed between two adjacent groups of rollers, and the rotation direction of the rollers is perpendicular to the rotation direction of the rollers. The rollers and wheels cooperate to transport the plastic to the corresponding discharge port. Guide plates are provided in the direction of both ends of the rollers, and the lower side of the guide plates corresponds to the discharge port.

[0006] Furthermore, the roller is a hemispherical surface to prevent the roller from hindering the normal movement of the plastic. The surfaces of the drum and the roller are provided with air holes, and the installation shafts of the drum and the roller are provided with air pipes. The air pipes are connected with the air holes on the surface of the corresponding drum or roller. When the plastic is transported, the air holes are used to generate an adsorption force on the plastic, which facilitates the drum and the roller to transport lightweight plastics.

[0007] Furthermore, there are multiple groups of feed rollers, which are synchronously connected by transmission belts, and the two upper and lower feed rollers in the same group are synchronously rotated and connected by a transmission gear set. A transparent support plate is provided between two adjacent groups of feed rollers to ensure horizontal transportation of the plastic surface.

[0008] Furthermore, the plastic product defect detection module includes an upper detection module and a lower detection module, and the upper detection module and the lower detection module are respectively located on the upper and lower sides of the support plate.

[0009] Furthermore, conveyor belts are provided on the upper and lower sides of the support plate, and there are multiple upper detection modules and lower detection modules, which are respectively installed on the surfaces of the corresponding conveyor belts. When the moving speed of the upper detection module and the lower detection module is the same as the moving speed of the plastic, the upper detection module and the lower detection module can be used to statically collect image information of the plastic surface to avoid the phenomenon of afterimage when the upper detection module and the lower detection module collect image information.

[0010] Furthermore, the feed end of the feed plate located inside the body and the discharge end of the discharge plate located inside the body are both provided with air suction ports, a fan module is provided inside the body, the air outlet of the fan module is located on the side surface of the body, and the air outlet is connected to the air suction port to reduce the dust outside the body from entering the body.

[0011] Furthermore, a control assembly for controlling the rotation of baffle 1 and baffle 2 is installed on the side plate surface of the discharge plate, and the control assembly includes a pneumatic rod and a gear rod, and the gear rod is installed on the free end of the telescopic rod of the pneumatic rod. The surfaces of the transfer shafts of baffle 1 and baffle 2 are both provided with gears, and the gear rod is meshed with the gears on the surfaces of the transfer shafts of the corresponding baffle 1 and baffle 2.

[0012] Furthermore, a discharge roller is provided on the surface of the discharge plate, and the discharge roller is located on a side of the channel upper port away from the feed plate.

[0013] Furthermore, a conveying roller is provided inside the channel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The automatic classification and inspection machine for defect detection of plastic products can transport defect-free plastics and defective plastics by channels through the design of the defect detection module for plastic products in the machine body and the combination design of baffles 1 and 2 and the channel in the discharge plate. At the same time, it makes full use of the space structure inside the machine body and reduces the floor space of the machine equipment. By cooperating with the channel and the distribution module, the defective plastics can be classified and output according to the defect type of the defective plastics, which is convenient for the classification and collection of the defective plastics.

[0015] 2. The automatic classification and inspection machine for defect detection of plastic products can realize double-sided detection of plastics through the combined design of the internal conveyor belt and the upper detection module and the lower detection module. At the same time, it can realize the static collection of the surface image of the paper sheet, avoiding the phenomenon of residual image in the image collected by the plastic product defect detection module due to the relative movement between the plastic and the plastic product defect detection module, which is beneficial to improving the quality of plastic product defect detection.

[0016] 3. The automatic classification and inspection machine for defect detection of plastic products can reduce the entry of dust from outside the machine body into the machine body through the design of the air suction ports on the surface of the feed plate and the discharge plate and the combined design of the fan module and the air outlet, which is beneficial to dust-proof protection of the inside of the machine body, thereby ensuring the normal detection of the plastic product defect detection module. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The main view of the internal structure of the inspection machine of the present invention Figure 1 ; Figure 2 The main view of the internal structure of the inspection machine of the present invention Figure 2 ; Figure 3 For the present invention Figure 2 Schematic diagram of the structure at A in the middle; Figure 4 A top view of the distribution module structure of the present invention; Figure 5It is a side view of the distribution module structure of the present invention.

[0018] In the figure: 1. machine body; 2. feed plate; 21. air suction port; 3. feed roller; 31. transmission belt; 32. transmission gear set; 4. support plate; 5. conveyor belt; 51. upper detection module; 52. lower detection module; 6. fan module; 7. discharge plate; 71. baffle 1; 72. baffle 2; 8. discharge roller; 9. pneumatic rod; 91. gear rod; 10. channel; 101. conveyor roller; 11. discharge port; 12. distribution module; 121. roller; 122. roller; 123. guide plate; 13. air pipe. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] The embodiment of the automatic classification and inspection machine for plastic product defects detection is as follows: See also Figure 1-Figure 5 , a plastic product defect detection automatic classification inspection machine, comprising: A machine body 1 is provided with a plurality of discharge ports 11 on its side surface, a feed plate 2 and a discharge plate 7 are respectively provided on both sides of the machine body 1, a discharge roller 8 is provided on the surface of the discharge plate 7, and the discharge roller 8 is located on the side of the upper end of the channel 10 away from the feed plate 2, a feed roller 3 is provided inside the machine body 1, and there are multiple groups of feed rollers 3, and the multiple groups of feed rollers 3 are synchronously connected by a transmission belt 31, and the two upper and lower feed rollers 3 in the same group are synchronously rotated and connected by a transmission gear set 32, and a transparent support plate 4 is provided between two adjacent groups of feed rollers 3 to ensure the horizontal transportation of the plastic surface.

[0021] The feed end of the feed plate 2 located inside the body 1 and the discharge end of the discharge plate 7 located inside the body 1 are both provided with an air suction port 21. A fan module 6 is provided inside the body 1. The air outlet of the fan module 6 is located on the side surface of the body 1. The air outlet is connected to the air suction port 21 to reduce the dust outside the body 1 from entering the inside of the body 1.

[0022] The plastic product defect detection module is used to collect image information of the plastic surface and detect defects on the plastic surface. The plastic product defect detection module is located inside the body 1. By collecting an image database of various defects existing in plastics, a plastic product defect database is established. Based on the plastic product defect database, an image acquisition device is installed in the inspection machine. The image information of the plastic surface collected by the image acquisition device is compared and analyzed with the image information in the plastic product defect database, so that the defect type of the plastic can be automatically detected and identified.

[0023] The plastic product defect detection module includes an upper detection module 51 and a lower detection module 52. The upper detection module 51 and the lower detection module 52 are respectively located on the upper and lower sides of the support plate 4. Conveyor belts 5 are provided on the upper and lower sides of the support plate 4. There are multiple upper detection modules 51 and lower detection modules 52. The multiple upper detection modules 51 and lower detection modules 52 are respectively installed on the surfaces of the corresponding conveyor belts 5. When the moving speed of the upper detection module 51 and the lower detection module 52 is the same as the moving speed of the plastic, the upper detection module 51 and the lower detection module 52 can be used to statically collect image information of the plastic surface to avoid the phenomenon of afterimage when the upper detection module 51 and the lower detection module 52 collect image information.

[0024] The channel 10 is located inside the machine body 1, and the upper port of the channel 10 is located on the surface of the discharge plate 7. A conveying roller 101 is provided inside the channel 10. A baffle 1 71 is rotatably installed in the upper port of the channel 10 for controlling the opening and closing of the upper port of the channel 10 and the moving direction of the plastic. A baffle 2 72 is provided above the upper port of the channel 10 for changing the conveying direction of the plastic. The baffle 2 72 is rotatably installed on the side plate surface of the discharge plate 7.

[0025] A control assembly for controlling the rotation of baffle 1 71 and baffle 2 72 is installed on the side plate surface of the discharge plate 7. The control assembly includes a pneumatic rod 9 and a gear rod 91. The gear rod 91 is installed on the free end of the telescopic rod of the pneumatic rod 9. Gears are provided on the surfaces of the transfer shafts of baffle 1 71 and baffle 2 72. The gear rod 91 meshes with the gears on the surfaces of the transfer shafts of the corresponding baffle 1 71 or baffle 2 72.

[0026] The distribution module 12 is used for classifying and conveying plastics. The distribution module 12 is installed inside the machine body 1 . The lower end of the channel 10 is located above the distribution module 12 . The surface of the distribution module 12 corresponds to the discharge port 11 .

[0027] The cross-section of the distribution module 12 is trapezoidal. A roller 121 and a wheel 122 are provided inside the upper surface of the distribution module 12. The wheel 122 is installed between two adjacent groups of rollers 121. The rotation direction of the wheel 122 is perpendicular to the rotation direction of the roller 121. The roller 121 cooperates with the wheel 122 to transport the plastic to the corresponding position of the discharge port 11. Guide plates 123 are provided in the direction of both ends of the roller 121, and the lower side of the guide plate 123 corresponds to the discharge port 11.

[0028] The roller 122 is a hemispherical surface to prevent the roller 122 from hindering the normal movement of the plastic. The surfaces of the drum 121 and the roller 122 are provided with air holes. The installation shafts of the drum 121 and the roller 122 are provided with air pipes 13. The air pipes 13 are connected with the air holes on the surfaces of the corresponding drum 121 or the roller 122. When the plastic is transported, the air holes are used to generate an adsorption force on the plastic, which facilitates the drum 121 and the roller 122 to transport the lightweight plastic.

[0029] Working principle of inspection machine: First, the plastic to be inspected is placed inside the machine body 1 from the position of the feed plate 2. The feed roller 3 will transport the plastic to the inside of the machine body 1. The conveyor belt 5 is started. The conveyor belt 5 will drive the upper inspection module 51 and the lower inspection module 52 to move together. The conveyor belt 5 is used to make the moving speed of the upper inspection module 51 and the lower inspection module 52 the same as the moving speed of the plastic in the machine body 1. Multiple groups of upper inspection modules 51 and lower inspection modules 52 work together to detect whether there are process defects such as printing, embossing, fluorescence, watermark, hot stamping and plastic quality defects on the plastic surface.

[0030] When the plastic has no process defects and quality defects, the feed roller 3 will convey the plastic to the surface of the discharge plate 7, and at the same time, the plastic will be discharged under the action of the discharge roller 8. When the plastic has defects, the pneumatic rod 9 will start and drive the gear rod 91 to move. The gear rod 91 will mesh with the gears on the surface of the connecting shaft of baffle 1 71 and baffle 2 72, driving baffle 1 71 and baffle 2 72 to rotate. The rotation of baffle 1 71 will open the upper port of the channel 10, and the rotation of baffle 2 72 will limit the plastic from continuing to move toward the direction of the discharge roller 8, and at the same time will guide the plastic into the channel 10.

[0031] The plastic enters the channel 10, and is conveyed to the surface of the distribution module 12 by the action of the conveying roller 101. According to the defects of the plastic detected by the upper detection module 51 or the lower detection module 52, the roller 121 and the roller 122 on the surface of the distribution module 12 cooperate to convey the plastic to the corresponding position of the discharge port 11, so that plastics with different defects can be automatically classified and output.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic product defect detection automatic classification inspection machine, characterized in that: include: A machine body (1), wherein a plurality of discharge ports (11) are provided on a side surface of the machine body (1), a feed plate (2) and a discharge plate (7) are provided on both sides of the machine body (1), and a feed roller (3) is provided inside the machine body (1); A plastic defect detection module, the plastic defect detection module being located inside the machine body (1); A channel (10) is located inside the machine body (1), an upper port of the channel (10) is located on the surface of the discharge plate (7), a baffle plate 1 (71) is rotatably mounted in the upper port of the channel (10), a baffle plate 2 (72) is provided above the upper port of the channel (10), and the baffle plate 2 (72) is rotatably mounted on the surface of the side plate of the discharge plate (7); The distribution module (12) is used to classify and transport plastics. The distribution module (12) is installed inside the machine body (1). The lower end of the channel (10) is located above the distribution module (12). The surface of the distribution module (12) corresponds to the discharge port (11).

2. The automatic classification and inspection machine for defect detection of plastic products according to claim 1, wherein: The cross section of the distribution module (12) is trapezoidal. A roller (121) and a wheel (122) are provided inside the upper surface of the distribution module (12). The wheel (122) is installed between two adjacent groups of rollers (121). The rotation direction of the wheel (122) is perpendicular to the rotation direction of the roller (121). Guide plates (123) are provided in the direction of both ends of the roller (121). The lower side of the guide plate (123) corresponds to the discharge port (11).

3. The automatic classification and inspection machine for defect detection of plastic products according to claim 2, wherein: The roller (122) is a hemispherical surface, the surfaces of the drum (121) and the roller (122) are both provided with air holes, the installation shafts of the drum (121) and the roller (122) are both provided with air pipes (13) inside, and the air pipes (13) are connected to the air holes on the surfaces of the corresponding drum (121) or roller (122).

4. The automatic classification and inspection machine for defect detection of plastic products according to any one of claims 1 to 3, wherein: There are multiple groups of feed rollers (3), and a transparent support plate (4) is provided between two adjacent groups of feed rollers (3).

5. The automatic classification and inspection machine for defect detection of plastic products according to claim 4, wherein: The plastic defect detection module comprises an upper detection module (51) and a lower detection module (52), and the upper detection module (51) and the lower detection module (52) are respectively located on the upper and lower sides of the support plate (4).

6. The automatic classification and inspection machine for defect detection of plastic products according to claim 5, wherein: Conveyor belts (5) are provided on both upper and lower sides of the support plate (4), and there are a plurality of upper detection modules (51) and a plurality of lower detection modules (52). The plurality of upper detection modules (51) and lower detection modules (52) are respectively mounted on the surfaces of the corresponding conveyor belts (5).

7. The automatic classification and inspection machine for defect detection of plastic products according to claim 5 or 6, wherein: The feed end of the feed plate (2) located inside the machine body (1) and the discharge end of the discharge plate (7) located inside the machine body (1) are both provided with air suction ports (21), a fan module (6) is provided inside the machine body (1), an air outlet of the fan module (6) is located on a side surface of the machine body (1), and the air outlet is communicated with the air suction port (21).

8. The automatic classification and inspection machine for defect detection of plastic products according to claim 7, wherein: A control assembly for controlling the rotation of baffle plate 1 (71) and baffle plate 2 (72) is installed on the side plate surface of the discharge plate (7), and the control assembly includes a pneumatic rod (9) and a gear rod (91), and the gear rod (91) is installed on the free end of the telescopic rod of the pneumatic rod (9), and gears are provided on the surfaces of the transfer shafts of baffle plate 1 (71) and baffle plate 2 (72), and the gear rod (91) meshes with the gears on the surfaces of the transfer shafts of the corresponding baffle plate 1 (71) and baffle plate 2 (72).

9. The automatic classification and inspection machine for defect detection of plastic products according to claim 7, wherein: A discharge roller (8) is provided on the surface of the discharge plate (7), and the discharge roller (8) is located on a side of the upper end of the channel (10) away from the feed plate (2).

10. The automatic classification and inspection machine for defect detection of plastic products according to claim 7, wherein: A conveying roller (101) is provided inside the channel (10).

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