A comprehensive bottle cap appearance inspection equipment

Abstract

The present invention discloses an all-round bottle cap appearance inspection device, which belongs to the field of bottle cap production inspection, and comprises a frame, wherein a peripheral detection mechanism, an inner wall detection mechanism and a bottom detection mechanism are sequentially arranged in the frame along its length direction, and a conveying mechanism is arranged in the frame along its length direction, and the bottle cap is sequentially moved from the conveying mechanism to the peripheral detection mechanism, the inner wall detection mechanism and the bottom detection mechanism for inspection; the peripheral detection mechanism comprises a mounting plate and four first inspection cameras, and the lens of each first inspection camera is arranged toward the conveying mechanism, and the inner wall inspection mechanism comprises a column and a second inspection camera, and the second inspection camera is connected to the column and the lens of the second inspection mechanism is located directly above the conveying mechanism. The present invention has the effect of being able to automatically inspect and image the appearance of each part of the bottle cap, replacing the manual inspection method in the prior art, thereby avoiding the situation of missed inspection and wrong inspection of defective products and effectively improving the inspection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of bottle cap production inspection, and in particular to an all-round bottle cap appearance inspection device. Background Art

[0002] Bottle caps are an important part of food and beverage packaging. They have the function of keeping the contents sealed, as well as anti-theft and safety functions. They are widely used in bottled products. After the bottle caps are produced, their appearance needs to be inspected, including the inner thread, outer wall friction pattern, and the back trademark pattern. Whether the appearance of the bottle caps meets the standards affects the sealing effect of the product. They need to be fully inspected before they can be installed on the bottled products for shipment. In the prior art, the inspection of bottle caps usually adopts the manual inspection method, that is, manual inspection of the product appearance.

[0003] The above-mentioned prior art has the following problems: manual inspection requires workers to hold the bottle cap for a long time to inspect its appearance, which may easily lead to missed inspections and wrong inspections due to fatigue, resulting in the outflow of defective products, affecting the sealing effect of the bottled products, and the inspection efficiency is low. This problem needs to be solved urgently. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an all-round bottle cap appearance inspection device, which can automatically inspect and image the appearance of each part of the bottle cap, replacing the manual inspection method in the prior art, thereby avoiding the omission and misdetection of defective products and effectively improving the inspection efficiency.

[0005] An all-round bottle cap appearance inspection device comprises a frame, wherein a peripheral edge inspection mechanism, an inner wall inspection mechanism and a bottom inspection mechanism are sequentially arranged in the frame along the length direction, and a conveying mechanism is arranged in the frame along the length direction, and the bottle caps are sequentially moved from the conveying mechanism to the peripheral edge inspection mechanism, the inner wall inspection mechanism and the bottom inspection mechanism for inspection;

[0006] The peripheral edge detection mechanism includes a mounting plate and four first detection cameras, the mounting plate is arranged above the conveying mechanism, the four first detection cameras are connected to the mounting plate through a mounting rod and the lens of each first detection camera is arranged toward the conveying mechanism, the inner wall detection mechanism includes a column and a second detection camera, the column is installed on one side of the conveying mechanism in the length direction, the second detection camera is connected to the column and the lens of the second detection mechanism is located directly above the conveying mechanism;

[0007] The bottom detection mechanism is arranged directly below the conveying mechanism, and the bottom detection mechanism comprises a third detection camera and a bracket, wherein the bracket is installed in the frame, the third detection camera is connected to the bracket and the lens of the third detection camera is arranged vertically upward.

[0008] The present invention is further configured as follows: a guide plate is connected above the mounting plate, four slide rails are formed at the diagonal of the bottom wall of the guide plate, four sliding holes are opened on the mounting plate, the top end of each mounting rod passes through the sliding hole and is connected to a sliding block, and the sliding block drives the mounting rod and the first detection camera to slide along the length direction of the sliding rail.

[0009] The present invention is further configured as follows: a first annular light source is arranged between the four first detection cameras, a second annular light source is arranged outside the second detection camera, and a third annular light source is arranged outside the third detection camera.

[0010] The present invention is further configured as follows: a connecting frame is fixed to the top wall of the first annular light source, and the connecting frame passes through the mounting plate and is respectively connected to two guide rods at both ends, and two arc holes are symmetrically provided on the guide plate, and the two guide rods respectively pass through the two arc holes and slide along the arc holes.

[0011] The present invention is further configured as follows: a feed port is opened in the length direction of the frame near the first detection camera, a support plate is connected to the outside of the feed port, a material guide turntable is connected to the support plate, a plurality of guide grooves are evenly distributed on the outer periphery of the material guide turntable, a bottle cap is placed in each guide groove and moves from the feed port to the conveying mechanism.

[0012] The present invention is further configured as follows: the frame is connected to a material guide portion away from the feed port, the material guide portion includes a feed channel and two discharge channels, the feed channel and the two discharge channels are distributed in a Y shape, a baffle is provided at the connection between the feed channel and the discharge channel, the baffle is equal to the width of the discharge channel, and a driving device for driving the baffle to rotate is provided under the feed channel.

[0013] The present invention is further configured as follows: the driving device includes a cylinder, a pull rod and a rotating shaft, the rotating shaft is inserted between the two discharge channels, the baffle is fixedly connected to the side wall of the rotating shaft, the cylinder is connected to the lower surface of the feed channel, one end of the pull rod is fixed to the bottom end of the rotating shaft, and the other end is hinged to the end of the piston rod of the cylinder, and the baffle is respectively buckled at the openings of the two discharge channels when the piston rod of the cylinder is extended and retracted.

[0014] The present invention is further configured as follows: the conveying mechanism includes a first conveyor belt and a second conveyor belt, the second conveyor belt is arranged above the first conveyor belt and the third detection camera, one end of the second conveyor belt is located directly above the first conveyor belt and forms an exchange area, and the bottle caps continue to move toward the material guide part after being adsorbed on the second conveyor belt through the exchange area.

[0015] The present invention is further configured as follows: a fixed block is connected to one side of the sliding hole in the length direction near both ends, a positioning rod is connected between the fixed blocks, a positioning block is fixedly connected to the side wall of the mounting rod, and the positioning rod passes through the positioning block and is slidably connected to the positioning block.

[0016] When inspecting the bottle caps, the bottle caps are conveyed to the material guide turntable through the conveyor belt, and each bottle cap moves to a corresponding material guide slot. The material guide turntable conveys the bottle caps to the first conveyor belt. When the bottle caps move to the bottom of the first annular light source, the four first detection cameras simultaneously take photos and detect the periphery of the bottle caps, which can completely cover the periphery of the bottle caps for effective imaging. The first conveyor belt continues to drive the bottle caps to move to the bottom of the second annular light source, and the second detection camera set vertically downward detects and images the inner wall of the bottle caps. Then the bottle caps move to the exchange area formed between the first conveyor belt and the second conveyor belt, and the bottle caps are adsorbed on the second conveyor belt. The second conveyor belt drives the product to continue to move forward to the top of the third annular light source. The third detection camera detects and images the back of the bottle caps. The first detection camera and the second detection camera are sent to the display by the third detection camera, which can replace the manual detection method of the prior art, which is more efficient and effectively avoids the occurrence of misdetection and missed detection.

[0017] In summary, the present invention has the following beneficial effects:

[0018] 1. The conveying mechanism, periphery detection mechanism, inner wall detection mechanism and bottom detection mechanism arranged in the frame can replace manual detection to detect and image various parts of the bottle cap, with high detection accuracy and higher effect;

[0019] 2. Through the setting of the first ring light source, the second ring light source and the third ring light source, the bottle cap can be illuminated at all places during the inspection, and the inspection imaging effect is better;

[0020] 3. Through the material guide turntable arranged at the material inlet and the material guide grooves evenly distributed on the side wall of the material guide turntable, the auxiliary bottle caps are evenly distributed on the first conveyor belt to ensure uniform imaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure used to reflect the whole in the present invention;

[0022] Figure 2It is a schematic diagram of the structure inside the rack used to reflect the present invention;

[0023] Figure 3 It is a structural schematic diagram used to reflect the coordination relationship of various parts in the present invention;

[0024] Figure 4 for Figure 2 Enlarged view of part A in the middle;

[0025] Figure 5 for Figure 3 Enlarged view of middle part B;

[0026] Figure 6 It is a schematic diagram of the structure of the material guide turntable in the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the driving device in the present invention.

[0028] In the figure, 1, frame; 11, bottom detection mechanism; 111, bracket; 112, third detection camera; 113, third annular light source; 12, feed inlet; 2, peripheral detection mechanism; 21, first detection camera; 22, mounting plate; 221, sliding hole; 223, positioning rod; 23, guide plate; 231, slide rail; 232, arc hole; 24, mounting rod; 241, slider; 243, positioning block; 25, first annular light source; 251, connecting frame; 252, guide rod; 3, material guide part; 31, feed channel; 32, discharge channel; 4, bottle cap; 5, conveying mechanism; 51, first conveyor belt; 52, exchange area; 53, second conveyor belt; 6, inner wall detection mechanism; 61, column; 62, second detection camera; 63, second annular light source; 7, driving device; 71. Cylinder; 72. Pull rod; 73. Rotating shaft; 74. Baffle; 8. Support plate; 81. Material guide turntable; 82. Guide groove. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The terms such as "upper", "lower", "left", "right", "middle" and the like cited in this specification are for the convenience of description and are not used to limit the scope of the present invention. The change or adjustment of the relative relationship shall also be regarded as the scope of the present invention without substantially changing the technical content.

[0030] Example:

[0031] like Figure 1 and Figure 2As shown, an all-round bottle cap appearance inspection device designed in the present invention includes a frame 1, in which a peripheral edge inspection mechanism 2, an inner wall inspection mechanism 6 and a bottom inspection mechanism 11 are sequentially arranged along the length direction thereof, and a conveying mechanism 5 is arranged in the frame 1 along the length direction. Bottle caps 4 are sequentially moved from the conveying mechanism 5 to the peripheral edge inspection mechanism 2, the inner wall inspection mechanism 6 and the bottom inspection mechanism 11 for inspection.

[0032] like Figures 2 to 5 As shown, the peripheral detection mechanism 2 includes a mounting plate 22 and four first detection cameras 21, the mounting plate 22 is arranged above the conveying mechanism 5, the four first detection cameras 21 are connected to the mounting plate 22 through the mounting rod 24 and the lens of each first detection camera 21 is arranged toward the conveying mechanism 5, the inner wall detection mechanism 6 includes a column 61 and a second detection camera 62, the column 61 is installed on one side of the length direction of the conveying mechanism 5, the second detection camera 62 is connected to the column 61 and the lens of the second detection mechanism is located directly above the conveying mechanism 5; the conveying mechanism 5 includes a first conveyor belt 51 and a second conveyor belt 53, the second conveyor belt 53 is arranged above the first conveyor belt 51 and the third detection camera 112, one end of the second conveyor belt 53 is located directly above the first conveyor belt 51 and forms an exchange area 52, and the bottle cap 4 passes through the exchange area 52 and is adsorbed on the second conveyor belt 53 and then moves toward the bottom detection mechanism 11. The bottom detection mechanism 11 is arranged directly below the conveying mechanism 5. The bottom detection mechanism 11 includes a third detection camera 112 and a bracket 111. The bracket 111 is installed in the frame 1. The third detection camera 112 is connected to the bracket 111 and the lens of the third detection camera 112 is arranged vertically upward.

[0033] like Figures 4 to 6 As shown, a guide plate 23 is connected to the top of the mounting plate 22, and four slide rails 231 are formed at the diagonal of the bottom wall of the guide plate 23. Four sliding holes 221 are opened on the mounting plate 22, and the top of each mounting rod 24 passes through the sliding hole 221 and is connected to a slider 241. The slider 241 drives the mounting rod 24 and the first detection camera 21 to slide along the length direction of the slide rail 231. A first annular light source 25 is arranged between the four first detection cameras 21, a second annular light source 63 is arranged outside the second detection camera 62, and a third annular light source 113 is arranged outside the third detection camera 112.

[0034] like Figures 4 to 6As shown, a connecting frame 251 is fixed to the top wall of the first annular light source 25. After the connecting frame 251 passes through the mounting plate 22, two guide rods 252 are connected to the two ends respectively. Two arc holes 232 are symmetrically provided on the guide plate 23. The two guide rods 252 pass through the two arc holes 232 respectively and slide along the arc holes 232. A fixed block is connected to one side of the sliding hole 221 near both ends in the length direction. A positioning rod 223 is connected between the fixed blocks. A positioning block 243 is fixedly connected to the side wall of the mounting rod 24. The positioning rod 223 passes through the positioning block 243 and is slidably connected to the positioning block 243. By sliding the mounting rod 24 along the length direction of the guide rail, the distance between the first detection camera 21 and the bottle cap 4 can be adjusted, and the imaging effect can be adjusted as needed.

[0035] like Figure 6 and Figure 7 As shown, a feed port 12 is provided near the first detection camera 21 in the length direction of the frame 1, and a support plate 8 is connected to the outside of the feed port 12, and a material guide turntable 81 is connected to the support plate 8. A plurality of guide grooves 82 are evenly distributed on the outer periphery of the material guide turntable 81, and a bottle cap 4 is placed in each guide groove 82 and moves from the feed port 12 to the conveying mechanism 5. A material guide part 3 is connected to the frame 1 away from the feed port 12, and the material guide part 3 includes a feed channel 31 and two discharge channels 32, and the feed channel 31 and the two discharge channels 32 are arranged in a Y shape, and a baffle 74 is provided at the connection between the feed channel 31 and the discharge channel 32, and the width of the baffle 74 is equal to that of the discharge channel 32, and a driving device 7 for driving the baffle 74 to rotate is provided below the feed channel 31.

[0036] like Figure 7 As shown, the driving device 7 includes a cylinder 71, a pull rod 72 and a rotating shaft 73. The rotating shaft 73 is inserted between the two discharge channels 32. The baffle 74 is fixedly connected to the side wall of the rotating shaft 73. The cylinder 71 is connected to the lower surface of the feed channel 31. One end of the pull rod 72 is fixed to the bottom end of the rotating shaft 73, and the other end is hinged to the end of the piston rod of the cylinder 71. The baffle 74 is respectively engaged with the openings of the two discharge channels 32 when the piston rod of the cylinder 71 is extended and retracted. When the bottle cap 4 is inspected, when the inspection camera detects a defective product, it will transmit a signal to the main program. The main program controls the extension and contraction of the piston rod of the cylinder 71, and the piston rod drives the end of the pull rod 72 to move forward and backward. The pull rod 72 drives the rotating shaft 73 to rotate and drives the baffle 74 to rotate. Good products and defective products are respectively removed from different discharge channels 32, thereby achieving separation of good products and defective products.

[0037] The implementation principle of the above embodiment is: when inspecting the bottle caps 4, the bottle caps 4 are conveyed to the material guide turntable 81 through the conveyor belt, each bottle cap 4 moves into a corresponding material guide groove, and the material guide turntable 81 conveys the bottle caps 4 to the first conveyor belt 51. When the bottle caps 4 move to below the first annular light source 25, the four first detection cameras 21 simultaneously take pictures and detect various parts of the periphery of the bottle caps 4, which can completely cover the various parts of the periphery of the bottle caps 4 for effective imaging. The first conveyor belt 51 continues to drive the bottle caps 4 to move to below the second annular light source 63, and the second detection camera 62 arranged vertically downward detects and images the inner wall of the bottle caps 4. Then the bottle cap 4 moves to the exchange area 52 formed between the first conveyor belt 51 and the second conveyor belt 53, and the bottle cap 4 is adsorbed on the second conveyor belt 53. The second conveyor belt 53 drives the product to continue to move forward to just above the third annular light source 113, and the third detection camera 112 detects and images the back of the bottle cap 4. The first detection camera 21 and the second detection camera 62 are imaged by the third detection camera 112 and sent to the display, which can replace the manual detection method of the prior art, is more efficient and effectively avoids the occurrence of false detection and missed detection.

[0038] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A full range of bottle cap appearance inspection equipment, characterized by: The invention comprises a frame (1), wherein a peripheral edge detection mechanism (2), an inner wall detection mechanism (6) and a bottom detection mechanism (11) are sequentially arranged in the frame (1) along its length direction, and a conveying mechanism (5) is arranged in the frame (1) along its length direction, and the bottle cap (4) is sequentially moved from the conveying mechanism (5) to the peripheral edge detection mechanism (2), the inner wall detection mechanism (6) and the bottom detection mechanism (11) for detection; the peripheral edge detection mechanism (2) comprises a mounting plate (22) and four first detection cameras (21), and the mounting plate (22 ) is arranged above the conveying mechanism (5), the four first detection cameras (21) are connected to the mounting plate (22) through the mounting rod (24) and the lens of each first detection camera (21) is arranged toward the conveying mechanism (5), the inner wall detection mechanism (6) comprises a column (61) and a second detection camera (62), the column (61) is installed on one side of the conveying mechanism (5) in the length direction, the second detection camera (62) is connected to the column (61) and the lens of the second detection camera (62) is located directly above the conveying mechanism (5); The bottom detection mechanism (11) is arranged directly below the conveying mechanism (5), and the bottom detection mechanism (11) comprises a third detection camera (112) and a bracket (111), wherein the bracket (111) is installed in the frame (1), the third detection camera (112) is connected to the bracket (111), and the lens of the third detection camera (112) is arranged vertically upward; The frame (1) is connected to a material guide portion (3) away from the material feed port (12), the material guide portion (3) comprises a material feed channel (31) and two material discharge channels (32), the material feed channel (31) and the two material discharge channels (32) are arranged in a Y shape, a baffle (74) is arranged at the connection between the material feed channel (31) and the material discharge channel (32), the width of the baffle (74) is equal to that of the material discharge channel (32), and a driving device (7) for driving the baffle (74) to rotate is arranged below the material feed channel (31); The driving device (7) comprises a cylinder (71), a pull rod (72) and a rotating shaft (73); the rotating shaft (73) is inserted between the two discharge channels (32); the baffle (74) is fixedly connected to the side wall of the rotating shaft (73); the cylinder (71) is connected to the lower surface of the feed channel (31); one end of the pull rod (72) is fixed to the bottom end of the rotating shaft (73), and the other end is hinged to the end of the piston rod of the cylinder (71); the baffle (74) is respectively engaged with the openings of the two discharge channels (32) when the piston rod of the cylinder (71) is in the extended and retracted states; The conveying mechanism (5) comprises a first conveyor belt (51) and a second conveyor belt (53); the second conveyor belt (53) is arranged above the first conveyor belt (51) and the third detection camera (112); one end of the second conveyor belt (53) is located directly above the first conveyor belt (51) and forms an exchange area (52); the bottle caps (4) pass through the exchange area (52) and are adsorbed on the second conveyor belt (53), and then continue to move toward the material guide portion (3).

2. The all-round bottle cap appearance inspection device according to claim 1, characterized in that: A guide plate (23) is connected above the mounting plate (22), and four slide rails (231) are formed at the diagonal of the bottom wall of the guide plate (23). Four sliding holes (221) are opened on the mounting plate (22), and the top of each mounting rod (24) passes through the sliding hole (221) and is connected to a slider (241). The slider (241) drives the mounting rod (24) and the first detection camera (21) to slide along the length direction of the slide rail (231).

3. The all-round bottle cap appearance inspection device according to claim 2, characterized in that: A first annular light source (25) is arranged between the four first detection cameras (21), a second annular light source (63) is arranged outside the second detection camera (62), and a third annular light source (113) is arranged outside the third detection camera (112).

4. The all-round bottle cap appearance inspection device according to claim 3, characterized in that: A connecting frame (251) is fixed to the top wall of the first annular light source (25); after the connecting frame (251) passes through the mounting plate (22), two ends of the connecting frame (251) are respectively connected to two guide rods (252); two arc-shaped holes (232) are symmetrically provided on the guide plate (23); the two guide rods (252) respectively pass through the two arc-shaped holes (232) and slide along the arc-shaped holes (232).

5. The all-round bottle cap appearance inspection device according to claim 1, characterized in that: A feed port (12) is provided in the longitudinal direction of the frame (1) near the first detection camera (21); a support plate (8) is connected to the outside of the feed port (12); a material guide turntable (81) is connected to the support plate (8); a plurality of guide grooves (82) are evenly distributed on the outer periphery of the material guide turntable (81); a bottle cap (4) is placed in each guide groove (82) and moves from the feed port (12) to the conveying mechanism (5).

6. The all-round bottle cap appearance inspection device according to claim 2, characterized in that: A fixing block is connected to one side of the sliding hole (221) near both ends in the length direction, a positioning rod (223) is connected between the fixing blocks, a positioning block (243) is fixedly connected to the side wall of the mounting rod (24), and the positioning rod (223) passes through the positioning block (243) and is slidingly connected to the positioning block (243).

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