Conveyor for detecting missing parts of inner chain links of chain
By designing a chain link missing parts detection conveyor, which uses a vision camera for automatic detection and a belt drive mechanism, the problems of missed detection of missing parts and cumbersome manual parts stringing in traditional chain assembly are solved. It realizes automatic guiding and transportation of inner chain links and rejection of missing parts, thus improving the quality and efficiency of chain assembly.
Patent Information
- Application Number
- CN202520387237.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-07
AI Technical Summary
In traditional chain assembly production, manual visual inspection leads to missed detection of missing parts, and manual component stringing is cumbersome and complicated, affecting production efficiency.
A chain internal link missing part detection conveyor was designed. It uses a vision camera to automatically detect missing internal link parts, and realizes automatic guiding and transportation of internal link parts and automatic rejection of missing parts through a belt drive mechanism. Combined with an infrared counting sensor and a PLC control system, it realizes coordinated linkage between the internal link and the external link assembly machine.
It improves the conveying efficiency of inner links, reduces the missed detection rate of manual inspection, enhances the quality and efficiency of chain assembly, simplifies the operation process, and saves labor costs.
Smart Images

Figure CN223865589U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of chain link detection, more specifically, it relates to a chain inner link missing part detection conveyor. BACKGROUND
[0002] Chain is a kind of mechanical transmission component formed by metal chain link, roller pin shaft assembly, usually used for power transmission and transportation of goods.At present, in the assembly work of chain, the inner chain link parts are pre-assembled by inner chain link assembly machine, then the missing inner chain link parts are removed after artificial visual detection, and then the qualified inner chain link parts are manually connected by workers, and then put into outer chain link assembly machine for the assembly work of outer chain link of chain, so it can be seen that the transfer assembly and missing part detection of inner chain link of conventional chain need to be completed by artificial operation, and the missing part detection by artificial visual observation is not only inefficient, but also prone to missing detection of missing inner chain link due to human visual fatigue, which affects the production quality of chain, in addition, the inner chain link cannot be directly and automatically conveyed and assembled between inner chain link assembly machine and outer chain link assembly machine, and the operation of manually connecting the parts and then putting into outer chain link assembly machine is complicated, which reduces the assembly production efficiency of chain. SUMMARY
[0003] In order to solve the above technical problems, the utility model provides a kind of chain inner chain link missing part detection conveyor, to solve the problem of missing detection caused by artificial visual detection of chain in conventional chain assembly production and the problem of low production efficiency caused by complicated operation of manually connecting parts and conveying.
[0004] The utility model provides a kind of chain inner chain link missing part detection conveyor, including bottom plate, the upper side of bottom plate is welded with stand, and the upper side of bottom plate is equipped with gas supply station, and the upper side of bottom plate is equipped with control machine, and the upper side of bottom plate is placed with collection basket, still including shooting frame, sliding slot and stand, the left side of stand is bolted with supporting plate, and the lower side of supporting plate is bonded with guide plate, and guide plate is closely bonded with sliding slot, and the left side of stand is connected with vertical plate by bolt, and the right side of vertical plate is equipped with light plate, and the right side of stand is welded with supporting plate, and the left side of stand is fixedly connected with motor frame by bolt, and the left side of motor frame is bolted with conveying motor, and the motor shaft of conveying motor is equipped with driving sleeve, and the outer side of driving sleeve is equipped with synchronous belt, and the other end of synchronous belt is equipped with driven cylinder, and the inner side of driven cylinder is welded with rotating rod, and the left side of stand is bolted with air cylinder, and the telescopic rod of air cylinder is equipped with push frame, the left side of shooting frame is provided with visual camera, and the lower side of shooting frame is connected with bottom plate by bolt, and the upper side of bottom plate is welded with support, and the through hole that goes through left and right is arranged on support, and rotating rod is rotatably connected in the through hole of support by bearing.
[0005] In at least some embodiments, the number of the support plates is two groups, the support plates are symmetrically distributed front and back, the upper side of the front side support plate is provided with a first infrared counting sensor, the upper side of the rear side support plate is provided with a second infrared counting sensor, each group of support plates is an L-shaped folded plate structure, a through hole is arranged at the center position of the upper side of the L-shaped structure of the support plate, and the first infrared counting sensor and the second infrared counting sensor are respectively inserted into the through holes of the two groups of support plates.
[0006] In at least some embodiments, two groups of left-right through holes are arranged on the stand, two groups of rotating rods are rotatably connected in the two groups of through holes of the stand, and a left-right through opening groove structure is arranged on the upper side of the stand.
[0007] In at least some embodiments, the number of the guide plates is four groups, every two groups of guide plates are symmetrically distributed left and right, and the guide plates are made of high-transparency glass.
[0008] In at least some embodiments, the pusher is an inverted concave-shaped structure, and the width of the concave-shaped structure of the pusher is the same as the spacing between the two groups of guide plates.
[0009] In at least some embodiments, the number of the rotating rods is two groups, the rotating rods are symmetrically distributed front and back, a driven rotating roller is welded to the outer side of the front rotating rod, a driving rotating roller is welded to the outer side of the rear rotating rod, and a conveying belt is nested on the outer sides of the driving rotating roller and the driven rotating roller.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] 1. In the utility model, the conveying belt nested on the outer sides of the driving rotating roller and the driven rotating roller is driven to move from front to back by the belt drive mechanism composed of the conveying motor, the driven rotating cylinder and the driving sleeve, the inner link placed on the upper side of the conveying belt is synchronously and directionally moved under the limiting and guiding action between the two groups of guide plates, the automatic guiding and transporting function of the inner link from the inner link assembly machine to the outer link assembly machine is realized, the transporting mode replaces the traditional manual string piece conveying mode, and the conveying efficiency of the inner link is improved.
[0012] 2. In the utility model, the backlight image formed by the light plate irradiating the inner link is shot and recognized by the visual camera, the pusher of the concave-shaped structure is pushed by the air cylinder, so that the defective inner link can be automatically removed from the conveying belt for rejection, the detection means relying on manual visual observation of the inner link in the past is abandoned, not only the labor cost is significantly saved, but also the adverse effects of the artificial missing detection factor on the chain production quality are effectively avoided, through the integration of the inner link conveying and detection, the detection work of the defective inner link can be completed in the process of conveying the inner link by the conveying belt, and the assembly and machining efficiency and quality of the chain are greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] Figure 2 This is a side view of the structure of this utility model.
[0015] Figure 3 This is a front view structural diagram of this utility model.
[0016] Figure 4 This is a schematic diagram of the right-side structure of this utility model.
[0017] Figure 5 This is a schematic diagram of the left-side structure of this utility model.
[0018] Figure 6 This is a top view of the structure of this utility model.
[0019] Figure 7 This is a cross-sectional structural diagram of the present invention.
[0020] Reference numerals: 1. Base plate; 2. Shooting frame; 3. Collection basket; 4. Camera; 5. Conveyor belt; 6. Support; 7. Slide rail; 8. Second infrared counting sensor; 9. Support plate; 10. Driven roller; 11. Guide plate; 12. Cylinder; 13. Lighting plate; 14. Vertical plate; 15. Control unit; 16. Stand; 17. Push frame; 18. Support plate; 19. Rotating rod; 20. Second infrared counting sensor; 21. Conveyor motor; 22. Synchronous belt; 23. Driven drum; 24. Motor frame; 25. Air supply station; 26. Driven roller; 27. Driven sleeve. Detailed Implementation
[0021] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0022] like Figures 1-7As shown, this utility model provides a chain link missing component detection conveyor, including a base plate 1; a stand 16 is welded to the upper side of the base plate 1, an air supply station 25 is installed on the upper side of the base plate 1, a control unit 15 is assembled on the upper side of the base plate 1, and a collection basket 3 is placed on the upper side of the base plate 1; it also includes a shooting frame 2, a slide 7, and the stand 16; a support plate 9 is bolted to the left side of the stand 16, a guide plate 11 is glued to the lower side of the support plate 9, and the guide plate 11 is tightly glued to the slide 7; a stand 14 is bolted to the left side of the stand 16, a light plate 13 is installed on the right side of the stand 14, a support plate 18 is welded to the right side of the stand 16, and a motor frame 2 is bolted to the left side of the stand 16. 4. A conveyor motor 21 is bolted to the left side of the motor frame 24. An active sleeve 27 is mounted on the motor shaft of the conveyor motor 21. A synchronous belt 22 is fitted on the outer side of the active sleeve 27. The other end of the synchronous belt 22 is fitted on the outer side of the driven drum 23. A rotating rod 19 is welded to the inner side of the driven drum 23. A cylinder 12 is bolted to the left side of the stand 16. A pusher 17 is mounted on the telescopic rod of the cylinder 12. A visual camera 4 is set on the left side of the shooting frame 2. A base plate 1 is bolted to the lower side of the shooting frame 2. A bracket 6 is welded to the upper side of the base plate 1. The bracket 6 has a through hole that runs from left to right. A rotating rod 19 is rotatably connected to the through hole of the bracket 6 through a bearing.
[0023] In this embodiment, there are two sets of support plates 9, symmetrically distributed front and rear. A first infrared counting sensor 20 is installed on the upper side of the front support plate 9, and a second infrared counting sensor 8 is installed on the upper side of the rear support plate 9. Each set of support plates 9 has an L-shaped folded plate structure, with a through hole at the center of the upper side of the L-shaped structure. The first infrared counting sensor 20 and the second infrared counting sensor 8 are respectively inserted into the through holes of the two sets of support plates 9. The first infrared counting sensor 20 detects the number of parts assembled by the chain link assembly machine, and the second infrared counting sensor 8... The line counting sensor 8 detects the number of parts entering the outer link assembly machine. If the number of parts entering detected by the second infrared counting sensor 8 is less than the number of parts exiting detected by the first infrared counting sensor 20, the first infrared counting sensor 20 and the second infrared counting sensor 8 transmit the detected comparison data to the PLC controller 15. The PLC controller 15 controls the assembly speed of the inner link assembly machine and the assembly speed of the outer link assembly machine, thereby improving the coordinated linkage between the inner and outer link assembly machines and ensuring the processing speed and efficiency of the inner and outer links of the chain.
[0024] In this embodiment, the support frame 16 is provided with two sets of through holes that extend from left to right. Two sets of rotating rods 19 are rotatably connected to the two sets of through holes of the support frame 16. The upper side of the support frame 16 is provided with a through-hole groove structure that extends from left to right. The light plate 13 is embedded in the through-hole groove of the support frame 16. The visual camera 4 is opposite to the through-hole groove of the support frame 16. The backlight formed by the light plate 13 on the inner link allows the visual camera 4 to clearly identify the structural outline of the inner link, thereby automatically detecting the missing parts of the inner link.
[0025] In this embodiment, there are four sets of guide plates 11, with each pair of guide plates 11 symmetrically distributed on the left and right. The guide plates 11 are made of high-transparency glass. By utilizing the light transmittance of the high-transparency glass, the visual camera 4 can clearly capture the backlit image of the inner link formed by the light plate 13 to detect missing parts of the inner link without affecting the guiding work of the two sets of guide plates 11 on the movement path of the inner link.
[0026] In this embodiment, the pusher 17 is an inverted U-shaped structure. The width of the U-shaped structure of the pusher 17 is the same as the distance between the two sets of guide plates 11. When the visual camera 4 does not detect any missing parts in the inner link, the U-shaped structure of the pusher 17, together with the two sets of guide plates 11, limits the horizontal movement of the inner link, ensuring that the inner link moves directionally from front to back within the two sets of guide plates 11 and the U-shaped structure of the pusher 17. When the visual camera 4 detects any missing parts in the inner link, the telescopic rod of the cylinder 12 drives the inner link with assembly defects inside the U-shaped structure of the pusher 17 to the upper side of the collection basket 3 for removal, ensuring the quality of chain processing.
[0027] In this embodiment, there are two sets of rotating rods 19, which are symmetrically distributed front and rear. A driven roller 10 is welded to the outer side of the front rotating rod 19, and an active roller 26 is welded to the outer side of the rear rotating rod 19. A conveyor belt 5 is nested on the outer side of the active roller 26 and the driven roller 10. The conveyor motor 21 operates through a belt drive mechanism formed by the synchronous belt 22, the driven drum 23, and the active sleeve 27, which causes the rotating rod 19 connected to the driven drum 23 to drive the active roller 26 to rotate. The active roller 26, in conjunction with the driven roller 10, drives the conveyor belt 5 to move from front to back, so that the conveyor belt 5 drives the inner link to move automatically from the inner link assembly machine to the outer link assembly machine, avoiding the manual transfer operation of the inner link and saving labor costs.
[0028] The specific usage and function of this embodiment are as follows:
[0029] In this invention, during the conveying and testing of inner links between the inner link assembly machine and the outer link assembly machine, the inner link assembled by the inner link assembly machine is pushed onto the conveyor belt 5 via the slide 7. The PLC controller 15 starts the conveyor motor 21 via wires. The conveyor motor 21 drives the drive sleeve 27 to rotate. The drive sleeve 27 drives the driven rotating drum 23, which is welded to the rotating rod 19, via the synchronous belt 22 nested on its outer side. The rotating rod 19 drives the drive roller 26, which is welded to its outer side, to rotate. The drive roller 26 drives the conveyor belt 5 onto the pallet 18. The conveyor belt 5 moves from front to back, causing the inner chain link to move directionally between the two sets of guide plates 11. When the inner chain link is conveyed by the conveyor belt 5 to the area below the first infrared counting sensor 20, the first infrared counting sensor 20 counts the passing inner chain link. When the inner chain link is conveyed by the conveyor belt 5 to the left of the vision camera 4, the light panel 13 illuminates the inner chain link, and the vision camera 4 captures and identifies the structural outline of the inner chain link. If there is a missing part in the inner chain link, the vision camera 4 transmits the identified information to the PLC controller 15 via a wire. The inner chain link moves to the inner side of the U-shaped structure of the pusher 17. The PLC controller 15 starts the air supply station 25 through the wire. The air supply station 25 supplies air to the cylinder 12 through the air pipe. The cylinder 12 then pushes the pusher 17 to the right. The pusher 17 moves the inner chain link to the upper side of the collection basket 3. The inner chain link falls into the collection basket 3 by gravity. Then the air supply station 25 controls the cylinder 12 to return to its original position. If there are no missing parts in the inner chain link, the conveyor belt 5 directly drives the inner chain link past the lower side of the second infrared counting sensor 8 for counting. The inner chain link is then transported by the conveyor belt 5 to the outer chain link. In the assembly machine, the counting data of the first infrared counting sensor 20 and the counting data of the second infrared counting sensor 8 are transmitted to the PLC controller 15 via wires for data comparison. When the counting data of the first infrared counting sensor 20 is greater than or equal to the counting data of the second infrared counting sensor 8, the PLC controller 15 controls the external internal link assembly machine to stop operating. When the counting data of the first infrared counting sensor 20 is less than the counting data of the second infrared counting sensor 8, the PLC controller 15 controls the external internal link assembly machine to start operating.
[0030] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies; any method that achieves the desired effect can be implemented. The visual camera 4, second infrared counting sensor 8, light board 13, PLC controller 15, first infrared counting sensor 20, conveyor motor 21, and gas supply station 25 mentioned above are all common commercially available components. Upon purchase and use, simply connect them according to the instruction manual; therefore, further details are omitted here.
[0031] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.
Claims
1. A chain link missing component detection conveyor, comprising a base plate (1); a frame (16) is welded to the upper side of the base plate (1), an air supply station (25) is installed on the upper side of the base plate (1), a control unit (15) is mounted on the upper side of the base plate (1), and a collection basket (3) is placed on the upper side of the base plate (1); characterized in that: It also includes a shooting frame (2), a slide (7), and a stand (16); a support plate (9) is bolted to the left side of the stand (16), a guide plate (11) is glued to the lower side of the support plate (9), the guide plate (11) is tightly glued to the slide (7), a stand plate (14) is bolted to the left side of the stand (16), a light plate (13) is mounted on the right side of the stand plate (14), a support plate (18) is welded to the right side of the stand (16), a motor frame (24) is bolted to the left side of the stand (16), a conveyor motor (21) is bolted to the left side of the motor frame (24), and an active sleeve is mounted on the motor shaft of the conveyor motor (21). 27), the outer side of the active sleeve (27) is fitted with a synchronous belt (22), the other end of the synchronous belt (22) is fitted with the outer side of the driven rotating drum (23), the inner side of the driven rotating drum (23) is welded with a rotating rod (19), the left side of the stand (16) is bolted with a cylinder (12), and a pusher (17) is installed on the telescopic rod of the cylinder (12); the left side of the shooting frame (2) is provided with a visual camera (4), the lower side of the shooting frame (2) is bolted with a base plate (1), the upper side of the base plate (1) is welded with a bracket (6), the bracket (6) is provided with a through hole that runs through the left and right sides, and the rotating rod (19) is rotatably connected in the through hole of the bracket (6) through a bearing.
2. The chain link missing component detection conveyor as described in claim 1, characterized in that: The number of support plates (9) is two sets, and the support plates (9) are symmetrically distributed front and back. The upper side of the front support plate (9) is equipped with a first infrared counting sensor (20), and the upper side of the rear support plate (9) is equipped with a second infrared counting sensor (8). Each set of support plates (9) is an L-shaped folded plate structure. A through hole is provided at the center of the upper side of the L-shaped structure of the support plate (9). The first infrared counting sensor (20) and the second infrared counting sensor (8) are respectively inserted into the through holes of the two sets of support plates (9).
3. The chain link missing component detection conveyor as described in claim 1, characterized in that: The support frame (16) is provided with two sets of through holes that run from left to right. Two sets of rotating rods (19) are rotatably connected in the two sets of through holes of the support frame (16). The upper side of the support frame (16) is provided with an open groove structure that runs from left to right. The light panel (13) is embedded in the open groove of the support frame (16).
4. The chain link missing component detection conveyor as described in claim 1, characterized in that: The guide plates (11) are in four sets, with each pair of guide plates (11) symmetrically distributed on the left and right sides. The guide plates (11) are made of highly transparent glass.
5. The chain link missing component detection conveyor as described in claim 1, characterized in that: The pusher (17) is an inverted U-shaped structure, and the width of the U-shaped structure of the pusher (17) is the same as the distance between the two sets of guide plates (11).
6. The chain link missing component detection conveyor as described in claim 1, characterized in that: The number of rotating rods (19) is two sets, and the rotating rods (19) are symmetrically distributed front and back. A driven rotating roller (10) is welded to the outer side of the front rotating rod (19), and a driving rotating roller (26) is welded to the outer side of the rear rotating rod (19). A conveyor belt (5) is nested on the outer side of the driving rotating roller (26) and the driven rotating roller (10).