A chain conveyor mechanism for parts production

Abstract

This invention relates to the field of parts conveying technology, specifically to a chain conveyor mechanism for parts production. It includes two support plates forming a conveying space. An upper drive component is rotatably connected to each of the left and right sides of the conveying space, and a lower drive component is rotatably connected to each of the upper drive components within the conveying space below them. The upper and lower drive components are connected by two first chains, and the two upper drive components are connected by two second chains located between the two first chains. The outer sides of the two first chains are connected by multiple first chain plates, and the outer sides of the two second chains are connected by multiple second chain plates. The first chain plates above the first chains and the second chain plates above the second chains are misaligned. This technical solution achieves a systematic breakthrough over traditional chain conveyor mechanisms, addressing issues such as gap slippage, asynchronous transmission, and limited applicability.

Description

Technical Field

[0001] This invention relates to the field of parts conveying technology, specifically to a chain conveyor mechanism for parts production. Background Technology

[0002] In the field of parts manufacturing, chain conveyor systems are indispensable transmission equipment in automated assembly lines, especially in the continuous transport of precision parts (such as electronic components and miniature bearings), where it is essential to ensure smooth movement and prevent spillage. Traditional chain conveyors often employ a single-layer chain-driven chain plate structure, with the chain plates forming a continuous conveying surface through rigid connections. However, this design has significant drawbacks: 1. Gap and drop issues: Gaps between chain plates caused by assembly tolerances or wear can easily lead to small parts falling off, resulting in material loss or even equipment jamming. 2. Insufficient dynamic sealing: Some equipment attempts to fill the gaps between chain plates with fixed baffles, but these cannot adapt to the dynamic deformation of the chain plates during movement, especially during speed changes, which can easily create localized gaps. 3. Poor transmission synchronization: When driven by multiple chains, if the sprocket teeth are not precisely matched, chain plate misalignment can exacerbate gap problems, affecting the flatness of the conveying surface. 4. Limited applicability: Existing conveyor mechanisms lack width adjustment capabilities, making it difficult to adapt to the transport requirements of parts of different sizes, requiring frequent tooling changes and reducing production efficiency.

[0003] Therefore, there is an urgent need for a chain conveyor mechanism that can dynamically seal the gap between chain plates, achieve precise synchronous transmission of multiple chains, and has the ability to adaptively adjust the conveying width, in order to meet the production needs of high-precision, multi-specification parts. Summary of the Invention

[0004] The main objective of this invention is to provide a chain conveyor mechanism for parts production that can prevent small parts from falling through the gaps between the chain plates.

[0005] To achieve the above objectives, the technical solution provided by this invention is as follows:

[0006] A chain conveyor mechanism for parts production includes two support plates forming a conveying space. An upper drive component is rotatably connected to both the left and right sides of the conveying space, and a lower drive component is rotatably connected to each of the conveying spaces below the upper drive components. The upper and lower drive components are connected by two first chains, and the two upper drive components are connected by two second chains. The two second chains are located between the two first chains. The outer sides of the two first chains are connected by multiple first chain plates, and the outer sides of the two second chains are connected by multiple second chain plates. The first chain plates above the first chains and the second chain plates above the second chains are offset. After a first chain plate moves above the first chain, it can be positioned between two adjacent second chain plates above the second chain. Telescopic plates are elastically slidingly fitted on both sides of the first and second chain plates in the direction of movement. The telescopic plates between adjacent first and second chain plates above the first and second chains contact and are compressed.

[0007] Specifically, the upper ends of the first chain plate and the second chain plate above the first chain and the second chain are flush.

[0008] Specifically, the upper transmission component includes an upper rotating shaft, which is rotatably connected to a support plate. The lower transmission component includes a lower rotating shaft, which is rotatably connected to the support plate. Two first sprockets are concentrically fixed on both the upper and lower rotating shafts. The front and rear first sprockets are respectively connected by two first chains. Two second sprockets are fixed on the upper rotating shaft. The second sprockets are located inside the first sprockets. The front and rear second sprockets are respectively connected by two second chains. A drive motor is fixed on one of the support plates, and the drive motor is connected to one of the lower rotating shafts.

[0009] Specifically, the teeth of the first sprocket and the second sprocket on the upper rotating shaft are misaligned.

[0010] Specifically, the first chain and the second chain have the same structure. The first chain is composed of multiple first links and multiple second links connected end to end, with the first links and second links of the first chain being staggered. The second chain is also composed of multiple first links and multiple second links connected end to end, with the first links and second links of the second chain being staggered. The first links have meshing grooves, and the first links of the first chain mesh with the teeth of the first sprocket. The first links of the second chain mesh with the teeth of the second sprocket. When the first links of the first chain mesh with the teeth of the upper first sprocket, the first links of the second chain mesh with the teeth of the second sprocket. The first links meshing with the upper first sprocket and the first links meshing with the second sprocket are offset in the circumferential direction of the upper shaft.

[0011] Specifically, a mounting plate is fixed on the first link, and the first link of the first chain is fixedly connected to the first link of the first chain through the mounting plate. The second link is fixedly connected to the first link of the second chain through the mounting plate.

[0012] Specifically, both sides of the first and second chain plates in the direction of movement are provided with sliding grooves, and the telescopic plate is slidably disposed in the sliding groove. One end of the telescopic plate is located outside the sliding groove, and one end of the telescopic plate inside the sliding groove is connected to the bottom of the sliding groove by a spring. One end of the telescopic plate outside the sliding groove is arc-shaped.

[0013] Specifically, the upper ends of the two support plates are fixedly connected to the electric slide rail, and the lower ends of the two sliding parts of the electric slide rail are fixed with limit plates. The two limit plates are located between the two support plates. The sliding direction of the sliding part is perpendicular to the transmission direction of the part, and the length direction of the limit plate is parallel to the conveying direction of the part.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. By staggering the first and second chain plates, the first chain plate is inserted between adjacent second chain plates to form a continuously covered conveyor surface, which physically reduces the static gap between the chain plates.

[0016] 2. When adjacent telescopic plates press against each other, they form a dynamic seal. Even if the chain plates experience slight misalignment due to movement, they can maintain tight contact through elastic compensation, preventing small parts from falling out of the gaps. The arc-shaped ends of the telescopic plates guide sliding during contact, reducing frictional resistance, ensuring smooth sealing action, and preventing jamming.

[0017] 2. The first and second chains work together, achieving precise engagement through the misalignment of the teeth of the first and second sprockets, ensuring a controllable phase difference in the movement of the first and second chain plates. The alternating design of the first and second chain links guarantees the synchronicity of the first and second chain plates during movement, preventing misalignment or widening of the gap between them due to asynchronous transmission.

[0018] 4. The upper ends of the first and second chain plates are flush, forming a uniform conveying plane, which improves the stability of parts conveying and reduces the risk of bumps or tilting.

[0019] 5. The limit plates are moved by an electric slide rail, and the distance between the two limit plates can be adjusted in real time to adapt to the conveying needs of parts of different sizes without stopping the machine to change tooling. The length direction of the limit plates is parallel to the conveying direction. While adjusting the width, it continuously guides the parts to prevent them from shifting or piling up, which is especially suitable for the directional conveying of precision parts.

[0020] 6. This invention features dynamic sealing and conveying width adjustment between the first and second chain plates, making it widely applicable for conveying small parts, irregularly shaped parts, or easily rolling objects, overcoming the limitations of traditional chain conveyors due to fixed gaps. The elastically sliding telescopic plate can cope with high-speed, variable-speed, or load-fluctuating conditions, maintaining stable conveying performance and reducing the risk of parts damage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the conveying mechanism.

[0022] Figure 2 This is a schematic diagram showing the connection between the electric slide rail and the limit plate.

[0023] Figure 3 This is a diagram showing the positional relationship between the first and second chains.

[0024] Figure 4 for Figure 3 A magnified view of region A in the middle.

[0025] Figure 5 This is a schematic diagram of the upper rotating shaft.

[0026] Figure 6 This is a schematic diagram of the first link.

[0027] Figure 7 This is a schematic diagram of the cross-sectional structure of the first chain plate.

[0028] Figure 8 A schematic diagram showing the interaction between the first chain plate above the first chain and the second chain plate above the second chain.

[0029] The components in the attached diagram are named as follows: 1. Support plate; 2. Electric slide rail; 3. Limiting plate; 4. Lower pivot; 5. Upper pivot; 6. First sprocket; 7. Second sprocket; 8. First chain; 9. Second chain; 10. First chain link; 11. Second chain link; 12. Mounting plate; 13. Spring; 14. First chain plate; 15. Second chain plate; 16. Telescopic plate. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] like Figures 1-8 As shown, a chain conveyor mechanism for parts production includes two support plates 1, with a conveying space formed between the two support plates 1.

[0032] An upper drive component is rotatably connected to both the left and right sides of the conveying space, and a lower drive component is rotatably connected to each of the conveying spaces below the upper drive components.

[0033] The upper and lower transmission components are connected by two first chains 8. The two upper transmission components are connected by two second chains 9. The two second chains 9 are located between the two first chains 8.

[0034] The upper transmission component includes an upper rotating shaft 5, which is rotatably connected to the support plate 1. The lower transmission component includes a lower rotating shaft 4, which is rotatably connected to the support plate 1.

[0035] Two first sprockets 6 are concentrically fixed on both the upper rotating shaft 5 and the lower rotating shaft 4. The front first sprocket 6 and the rear first sprocket 6 are respectively connected by two first chains 8.

[0036] Two second sprockets 7 are fixed on the upper rotating shaft 5. The second sprockets 7 are located inside the first sprocket 6. The front second sprocket 7 and the rear second sprocket 7 are respectively connected by two second chains 9.

[0037] The teeth of the first sprocket 6 and the second sprocket 7 on the upper rotating shaft 5 are misaligned.

[0038] A drive motor is fixed on one of the support plates 1, and the drive motor is connected to one of the lower rotating shafts 4.

[0039] The first chain 8 and the second chain 9 have the same structure.

[0040] The first chain 8 is composed of multiple first chain links 10 and multiple second chain links 11 connected end to end, with the first chain links 10 and second chain links 11 of the first chain 8 being arranged alternately.

[0041] The second chain 9 is composed of multiple first chain links 10 and multiple second chain links 11 connected end to end, with the first chain links 10 and the second chain links 11 of the second chain 9 being arranged alternately.

[0042] The first link 10 has a meshing groove. The first link 10 of the first chain 8 meshes with the teeth of the first sprocket 6. The first link 10 of the second chain 9 meshes with the teeth of the second sprocket 7.

[0043] When the first link 10 of the first chain 8 engages with the teeth of the first sprocket 6 above, the first link 10 of the second chain 9 engages with the teeth of the second sprocket 7.

[0044] The first chain link 10 that meshes with the first sprocket 6 above and the first chain link 10 that meshes with the second sprocket 7 are offset in the circumferential direction of the upper shaft 5.

[0045] The outer sides of the two first chains 8 are connected by a plurality of first chain plates 14. The outer sides of the two second chains 9 are connected by a plurality of second chain plates 15.

[0046] The first chain plate 14 above the first chain 8 and the second chain plate 15 above the second chain 9 are misaligned.

[0047] After the first chain plate 14 moves above the first chain 8, it can be positioned between two adjacent second chain plates 15 above the second chain 9. The upper ends of the first chain plate 14 and the second chain plate 15 above the first chain 8 and the second chain 9 are flush.

[0048] A mounting plate 12 is fixed to the first link 10, and the first link 10 of the first chain 8 is fixedly connected to the first link 10 of the first chain 8 through the mounting plate 12. The second link 15 is fixedly connected to the first link 10 of the second chain 9 through the mounting plate 12.

[0049] The second chain plate 15, rotated above the second chain 9, can fill the space between two adjacent first chain plates 14 above the first chain 8.

[0050] Both sides of the first chain plate 14 and the second chain plate 15 in the direction of movement are elastically slidably fitted with telescopic plates 16. The telescopic plates 16 between the adjacent first chain plate 14 and the second chain plate 15 above the first chain 8 and the second chain 9 are in contact with each other and are squeezed.

[0051] Both sides of the first chain plate 14 and the second chain plate 15 in the direction of movement are provided with sliding grooves. The telescopic plate 16 is slidably disposed in the sliding groove. One end of the telescopic plate 16 is located outside the sliding groove. One end of the telescopic plate 16 inside the sliding groove is connected to the bottom of the sliding groove by a spring 13. One end of the telescopic plate 16 outside the sliding groove is arc-shaped.

[0052] The upper ends of the two support plates 1 are fixedly connected to the electric slide rail 2. The lower ends of the two sliding parts of the electric slide rail 2 are fixed with limit plates 3. The two limit plates 3 are located between the two support plates 1. The sliding direction of the sliding part is perpendicular to the transmission direction of the part, and the length direction of the limit plate 3 is parallel to the conveying direction of the part.

[0053] After the drive motor starts, the first chain 8 and the second chain 9 can drive the first chain plate 14 and the second chain plate 15 to rotate respectively. When the second chain plate 15 rotates above the second chain 9, it can fill the space between two adjacent first chain plates 14 above the first chain 8. After placing the part on the upper end of the first chain plate 14 and the second chain plate 15, the part can be transported.

[0054] Start the electric slide rail 2. The electric slide rail 2 causes the two sliding parts to move closer or further apart. When the sliding parts move, they drive the limit plate 3 to move. During the process of the two sliding parts moving closer or further apart, the distance between the two limit plates 3 can be adjusted. During the process of the parts being transported, the parts can be limited in the front and rear directions.

[0055] When the second chain plate 15 is filled between two adjacent first chain plates 14, guided by the arc-shaped end of the telescopic plate 16, the two adjacent telescopic plates 16 can slide into their respective grooves. At the same time, the spring 13 is compressed, and under the action of the two adjacent telescopic ends pressing against each other, small parts can be prevented from falling between the adjacent first chain plates 14 and second chain plates 15 when transporting small parts.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A chain conveyor mechanism for parts production, comprising two support plates (1) forming a conveying space between the two support plates (1), characterized in that, An upper drive component is rotatably connected to both the left and right sides of the conveying space. A lower drive component is rotatably connected to the conveying space below the upper drive component. The upper and lower drive components are connected by two first chains (8). The two upper drive components are connected by two second chains (9). The two second chains (9) are located between the two first chains (8). The outer sides of the two first chains (8) are connected by multiple first chain plates (14). The outer sides of the two second chains (9) are connected by multiple second chain plates (15). The first chain plate (14) above the first chain (8) and the second chain plate (15) above the second chain (9) are offset. After the first chain plate (14) moves above the first chain (8), it can be positioned above the second chain (9). Between two adjacent second chain plates (15), telescopic plates (16) are elastically slidingly fitted on both sides of the first chain plate (14) and the second chain plate (15) in the direction of movement. The telescopic plates (16) between adjacent first chain plates (14) and second chain plates (15) above the first chain (8) and the second chain (9) are in contact with each other and are squeezed. The upper transmission component includes an upper rotating shaft (5), which is rotatably connected to the support plate (1). The lower transmission component includes a lower rotating shaft (4), which is rotatably connected to the support plate (1). Two first sprockets (6) are concentrically fixed on both the upper rotating shaft (5) and the lower rotating shaft (4). The first sprocket (6) on the front side and the first sprocket (6) on the rear side are respectively connected by two first chains (8). The upper rotating shaft (5) has Each has two fixed second sprockets (7), which are located inside the first sprocket (6). The front second sprocket (7) and the rear second sprocket (7) are respectively connected by two second chains (9). A drive motor is fixed on one of the support plates (1), and the drive motor is connected to one of the lower rotating shafts (4). The teeth of the first sprocket (6) and the second sprocket (7) on the upper rotating shaft (5) are staggered. The first chain (8) and the second chain (9) have the same structure. The first chain (8) is composed of multiple first links (10) and multiple second links (11) connected end to end. The first links (10) and the second links (11) of the first chain (8) are staggered. The second chain (9) is composed of multiple first links (10) and multiple second links (11). The first link (10) and the second link (11) of the second chain (9) are connected end to end. The first link (10) and the second link (11) of the second chain (9) are staggered. The first link (10) is provided with a meshing groove. The first link (10) of the first chain (8) meshes with the teeth of the first sprocket (6). The first link (10) of the second chain (9) meshes with the teeth of the second sprocket (7). When the first link (10) of the first chain (8) meshes with the teeth of the first sprocket (6) above, the first link (10) of the second chain (9) meshes with the teeth of the second sprocket (7). The first link (10) meshing with the first sprocket (6) above and the first link (10) meshing with the second sprocket (7) are staggered in the circumferential direction of the upper shaft (5).A mounting plate (12) is fixed to the first link (10). The first chain plate (14) is fixedly connected to the first link (10) of the first chain (8) through the mounting plate (12). The second chain plate (15) is fixedly connected to the first link (10) of the second chain (9) through the mounting plate (12). The upper ends of the first chain plate (14) and the second chain plate (15) above the first chain (8) and the second chain (9) are flush.

2. The chain conveyor mechanism for parts production according to claim 1, characterized in that, The first chain plate (14) and the second chain plate (15) are provided with grooves on both sides in the direction of movement. The telescopic plate (16) is slidably disposed in the groove. One end of the telescopic plate (16) is located outside the groove. One end of the telescopic plate (16) inside the groove is connected to the bottom of the groove by a spring (13). One end of the telescopic plate (16) outside the groove is arc-shaped.

3. The chain conveyor mechanism for parts production according to claim 1, characterized in that, The upper ends of the two support plates (1) are fixedly connected to the electric slide rail (2). The lower ends of the two sliding parts of the electric slide rail (2) are fixed with limit plates (3). The two limit plates (3) are located between the two support plates (1). The sliding direction of the sliding part is perpendicular to the transmission direction of the part, and the length direction of the limit plate (3) is parallel to the conveying direction of the part.

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