Positioning tool of power and free chain backflow conveying line

Abstract

The invention relates to the technical field of conveying equipment, in particular to a positioning tool of a power and free chain backflow conveying line. The lower surface of the tray abuts against the upper sides of the two supporting plates which are in front-back symmetry, fixing blocks are fixedly arranged on the left side and the right side of the lower portion of the tray in a front-back symmetry mode, connecting blocks are movably inserted into the fixing blocks, the connecting blocks are inserted into the chain wheels in a matched mode, and the connecting blocks are connected with the tray through a pushing mechanism. The positioning mechanisms are arranged between every two adjacent supporting plates, and the positioning mechanisms and the pushing mechanisms are arranged in a matched mode; the connecting plates are arranged between the two supporting plates in a one-to-one correspondence mode, the connecting plates are arranged diagonally, and the front sides and the rear sides of the connecting plates are fixed to the supporting plates on the front sides and the rear sides; the light sensors are respectively fixed on the upper surface of the connecting plate and are connected with the positioning mechanism through the controller; precise positioning and automatic stopping of the tray are achieved, the conveying efficiency is improved, mechanical abrasion is reduced, and the stability and the automation degree are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, and in particular to a positioning tool for a power-and-release chain return conveying line. Background Art

[0002] In the field of logistics transportation and automated warehousing, chain conveyors are widely used due to their simple structure and strong carrying capacity. However, traditional chain conveyors usually adopt a continuous conveying mode, which makes it difficult to achieve accurate positioning and temporary stop of items, resulting in low efficiency in sorting, detection or loading and unloading. In addition, the existing technology mostly uses mechanical blocks or sensors in conjunction with braking devices to achieve positioning, but this type of method has a complex structure, insufficient positioning accuracy, and is easily affected by mechanical wear and tear. Stability. Summary of the invention

[0003] The purpose of the present invention is to provide a positioning tool for a power-to-free chain return conveyor line with a reasonable design and easy use, in view of the defects and shortcomings of the prior art, so as to achieve precise positioning and automatic stopping of pallets, improve conveying efficiency, reduce mechanical wear, and enhance stability and automation.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: it comprises a support frame, a support rod, a support plate, a sprocket and a chain, the two support frames are symmetrically arranged in the upper and lower parts, a plurality of support rods are fixed at equal distances on the lower sides of the front and rear sides of the support frame, the lower end of the upper support rod is fixed on the top wall of the lower support frame, support plates are fixed on the front and rear sides above the support frame, chains are arranged inside the support plates, sprockets are arranged on both sides inside the chains, the front and rear ends of the sprockets are respectively screwed on the front and rear inner walls of the support plates through bearings, the two symmetrical sprockets are connected by a connecting rod, driving motors are arranged inside the two support plates on the front side, the two driving motors are arranged diagonally, and the output shafts of the driving motors are connected to the adjacent connecting rods; it also comprises: The trays are multiple, and the lower surfaces of the trays are respectively against the upper sides of two support plates arranged symmetrically in the front and rear directions. Fixed blocks are symmetrically fixedly arranged on the left and right sides below the trays in the front and rear directions. Connecting blocks are movably inserted in the fixing blocks. The connecting blocks are inserted in cooperation with the sprockets, and the connecting blocks are connected to the trays through a pushing mechanism. Positioning mechanism, there are two positioning mechanisms, and they are respectively arranged between two adjacent support plates, and the positioning mechanism is arranged in coordination with the pushing mechanism; There are two connecting plates, and they are arranged one by one between the two supporting plates. The connecting plates are arranged diagonally, and the front and rear sides of the connecting plates are fixed to the supporting plates on the front and rear sides; Light sensors, there are two light sensors, and they are respectively fixed on the upper surface of the connecting plate, and the light sensors are connected to the positioning mechanism through the controller; Through the above technical solution, the items to be transported are placed on the pallet, and the driving motor is started. The driving motor drives the sprocket and the chain to rotate, and the chain drives the connecting block to move. The connecting block drives the pallet to move through the fixed block. When the pallet moves to the upper side of the light sensor, the light sensor transmits a signal to the positioning mechanism, and the positioning mechanism pushes the pushing mechanism on the corresponding pallet. The pushing mechanism drives the connecting block to move upward into the fixed block, thereby separating the connecting block from the chain to prevent the chain from driving the connecting block and the pallet to move. At the same time, the positioning mechanism limits the pushing mechanism, thereby improving the positioning effect.

[0005] As a further improvement of the present invention, the pushing mechanism comprises: Push springs, there are several push springs, and two of them are embedded and fixed in the connecting block, and the upper ends of the push springs are fixed on the inner top wall of the fixing block; Connecting bars, there are two connecting bars, which are symmetrically arranged in the rectangular cavity inside the tray. Connecting rods are fixed on both the front and rear sides of the lower surface of the connecting bars. After the connecting rods pass through the lower side wall of the tray, they are movably inserted in the fixed block; There are four movable sliders, and they are fixed one by one on one side wall of the connecting block. After the movable slider passes through the sliding groove on the side wall of the fixed block, it is fixedly connected with the corresponding connecting rod; A push block, wherein the push block is suspended on the lower side of the tray, the push block is arranged in cooperation with the positioning mechanism, and a push rod is fixed symmetrically on the upper surface of the push block in the front and rear directions, and the push rod passes through the lower side wall of the tray and is fixedly connected to the bottom wall of the connecting strip; Through the above technical solution, when the pushing block and the positioning mechanism collide, the pushing block moves upward, the pushing block drives the connecting bar to move upward through the pushing rod, the connecting bar drives the movable slider to move upward through the connecting rod, and the movable slider drives the connecting block to move upward, so that the connecting block is moved out of the chain. At this time, the pushing spring is compressed. When the positioning mechanism is separated from the pushing block, the elastic force of the pushing spring drives the connecting block to move downward, so that it can be inserted into the chain.

[0006] As a further improvement of the present invention, a resistance block is sleeved and fixed on the lower end of the connecting block, the resistance block is inserted and resisted with the chain, and the two sides of the lower side of the resistance block are chamfered; Through the above technical solution, the stability of the connection between the connecting block and the chain can be increased.

[0007] As a further improvement of the present invention, the positioning mechanism comprises: A positioning block, wherein the positioning block abuts against the lower surface of the pushing block, and a side wall of the positioning block abuts against a side wall of a protrusion on the lower surface of the pushing block; Mounting plates, several of the mounting plates are provided, and they are equidistantly arranged between two symmetrically arranged front and rear support plates. Mounting seats are fixed on the mounting plates; Racks, several of the racks are provided, and they are symmetrically arranged front and rear in the mounting seats. After the upper ends of the racks pass through the top walls of the mounting seats, they are fixed on the bottom walls of the positioning blocks. Between two symmetrically arranged front and rear racks, gears that mesh with each other in pairs are provided, and the gears are meshed with the adjacent racks; Rotating shafts, two of the rotating shafts are provided, and they are symmetrically arranged front and rear. The rotating shafts are respectively rotatably connected through bearings to several mounting seats, and the gears are sleeved and fixed on the corresponding rotating shafts; Positioning motor, the positioning motor is fixed on a side wall of a mounting seat on one side. The output shaft of the positioning motor is fixedly connected to one end of one of the rotating shafts, and the positioning motor is connected to the light sensor; Through the above technical solution, the light sensor transmits a signal to the positioning motor. The positioning motor drives the rotating shaft to rotate. The rotating shaft drives several gears thereon to rotate. The gears drive the corresponding racks to move up and down. The racks drive the positioning blocks to move up and down. When the positioning block moves upward, it abuts against the pushing block, which is convenient for limiting the tray. When the positioning block moves downward, it separates from the pushing block, which does not affect the movement of the tray.

[0008] As a further improvement of the present invention, a protective cover is sleeved outside the positioning motor, and the protective cover is fixed on the side wall of the adjacent mounting seat; Through the above technical solution, the positioning motor can be protected, and the service life of the positioning motor is increased.

[0009] As a further improvement of the present invention, limit blocks are fixed on the lower sides of the side walls of the racks far from the gears, and the limit blocks are slidably arranged in limit chutes on the inner walls of the mounting seats; Through the above technical solution, the racks can be prevented from moving out of the mounting seats.

[0010] As a further improvement of the present invention, the front and rear sides of the mounting plate adjacent to the light sensor are respectively fixed on the front and rear support plates. The front and rear sides of the other several mounting plates are slidably arranged in sliding chutes on the front and rear support plates through sliding blocks. The several mounting plates are connected by an adjusting mechanism. The rotating shaft is composed of several sleeves and several connecting shafts. The sleeves are inserted and fixed in the gears. The sleeves are rotatably connected to the corresponding mounting seats through bearings. A connecting shaft is fixed at one end of the sleeve. The connecting shaft is inserted into the adjacent sleeve. The strip-shaped grooves on the outer ring wall of the connecting shaft are inserted in cooperation with the convex strips on the inner ring wall of the sleeve. The sleeve is connected to the output shaft of the positioning motor; Through the above technical solution, according to the size of the tray, the distance between several mounting plates and the positioning blocks can be adjusted through the adjusting mechanism to meet the use of trays of different sizes.

[0011] As a further improvement of the present invention, the adjusting mechanism includes: Driven connecting rods. There are four driven connecting rods, and they are symmetrically arranged in pairs, front and back, and are rotatably connected to the lower surface of the mounting plates on both sides adjacent to the middle side through shaft rods. The other ends of the driven connecting rods are rotatably connected to driving connecting rods through shaft rods. The driving connecting rods are rotatably connected to both sides of the lower surface of the middle mounting plate through shaft rods. A plurality of teeth are evenly fixed at equal angles on one end of the driving connecting rod located below the mounting plate. The teeth on the two driving connecting rods that are symmetrically arranged front and back are meshed with each other; Rotating motor. The rotating motor is embedded and fixed inside the middle mounting plate. The rotating motor is connected to the shaft rod of one of the driving connecting rods. The shaft rods on the two driving connecting rods arranged diagonally are connected through a synchronous pulley transmission assembly; Through the above technical solution, when the rotating motor is started, the rotating motor drives the driving connecting rod connected to it to rotate. The shaft rod of this driving connecting rod drives the diagonal driving connecting rod to rotate through the synchronous pulley transmission assembly. The driving connecting rod drives the front and rear corresponding driving connecting rods to rotate in opposite directions through the teeth on it, and the driving connecting rod drives the driven connecting rod to rotate, thereby ensuring the synchronous movement of the distance between the mounting plates.

[0012] As a further improvement of the present invention, support rollers are embedded and rotatably connected to both the front and rear sides of the top wall of the support plate. The upper side of the support roller abuts against the tray; this can increase the smoothness when the tray moves.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the linkage control of the light sensor and the positioning mechanism, automatic positioning and separation of the tray are realized, ensuring accurate docking when the item is transported to the designated position, and improving the transportation efficiency; 2. The adjusting mechanism can synchronously adjust the distance between the mounting plates to adapt to trays of different sizes, enhancing the versatility of the equipment; the support rollers and the adjustable sprocket structure further optimize the transportation smoothness; 3. The pushing mechanism combines spring reset and mechanical linkage to ensure the quick separation / engagement of the connecting block and the chain; the chamfer design of the abutting block strengthens the contact stability of the chain and reduces the risk of chain derailment; 4. The protective cover protects the motor from environmental damage, and the design of the limit block and the sliding groove prevents component dislocation, prolonging the service life of the equipment and reducing the maintenance cost at the same time. Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a structural schematic diagram of the chain, sprocket, connecting plate, and light sensor in the present invention.

[0016] Figure 3This is an exploded view of the tray and the pushing mechanism in the present invention.

[0017] Figure 4 is Figure 3 an enlarged view of part A in

[0018] Figure 5 This is an exploded view of the positioning mechanism in the present invention.

[0019] Figure 6 is Figure 5 an enlarged view of part B in

[0020] Figure 7 This is a schematic structural diagram of the adjustment mechanism in the present invention.

[0021] Figure 8 This is a schematic structural diagram of the driving connecting rod, the teeth, and the rotating motor in the present invention.

[0022] Explanation of reference numerals: Support frame 1, support rod 2, support plate 3, sprocket 4, chain 5, drive motor 6, tray 7, fixed block 8, connecting block 9, pushing mechanism 10, pushing spring 10-1, connecting bar 10-2, connecting rod 10-3, movable slider 10-4, pushing block 10-5, pushing rod 10-6, positioning mechanism 11, positioning block 11-1, mounting plate 11-2, mounting seat 11-3, rack 11-4, gear 11-5, rotating shaft 11-6, sleeve 11-6-1, connecting shaft 11-6-2, positioning motor 11-7, connecting plate 12, light sensor 13, abutting block 14, protective cover 15, limiting block 16, adjustment mechanism 17, driven connecting rod 17-1, driving connecting rod 17-2, teeth 17-3, rotating motor 17-4, support roller 18. Detailed implementation manners

[0023] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings. Only the preferred embodiments in the description are taken as examples. All other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention. Embodiment 1

[0024] As Figures 1-8As shown in the figure, this embodiment includes a support frame 1, support rods 2, support plates 3, sprockets 4, and a chain 5. The two support frames 1 are symmetrically arranged up and down. A plurality of support rods 2 are welded and fixed at equal intervals on the lower sides of the front and rear sides of the support frame 1. The lower ends of the support rods 2 on the upper side are welded and fixed on the top wall of the lower support frame 1. Support plates 3 are welded and fixed on the front and rear sides above the support frame 1. Chains 5 are arranged inside the support plates 3. Sprockets 4 are arranged on both sides inside the chain 5. The front and rear ends of the sprockets 4 are respectively rotatably connected to the front and rear inner walls of the support plates 3 through bearings. The two symmetrically arranged sprockets 4 are connected by a connecting rod. A driving motor 6 is arranged inside the front two support plates 3. The two driving motors 6 are arranged diagonally. The output shaft of the driving motor 6 is connected to the adjacent connecting rod. It further includes: Trays 7. There are a plurality of the trays 7, and their lower surfaces are respectively in contact with the upper sides of the two symmetrically arranged support plates 3. Fixing blocks 8 are symmetrically welded and fixed on the front and rear sides of the left and right sides below the trays 7. A connecting block 9 is movably inserted into the fixing block 8. The connecting block 9 is inserted in cooperation with the sprocket 4. The connecting block 9 is connected to the tray 7 through a pushing mechanism 10. A contact block 14 is sleeved and welded on the lower end of the connecting block 9. The contact block 14 is inserted in contact with the chain 5 in cooperation. The two sides of the lower side of the contact block 14 are chamfered, which can increase the connection stability between the connecting block 9 and the chain 5. Support rollers 18 are embedded and rotatably connected to the front and rear sides of the top wall of the support plate 3. The upper sides of the support rollers 18 are in contact with the tray 7, which can increase the smoothness of the movement of the tray 7. Positioning mechanisms 11. There are two of the positioning mechanisms 11, and they are respectively arranged between the adjacent two support plates 3. The positioning mechanism 11 is arranged in cooperation with the pushing mechanism 10. Connecting plates 12. There are two of the connecting plates 12, and they are arranged in one-to-one correspondence between the two support plates 3. The connecting plates 12 are arranged diagonally. The front and rear sides of the connecting plates 12 are welded and fixed to the front and rear support plates 3. Light sensors 13. There are two of the light sensors 13, and they are respectively fixed on the upper surfaces of the connecting plates 12 by bolts. The light sensors 13 are connected to the positioning mechanism 11 through a controller. Embodiment 2

[0025] Refer to Figure 1 、 Figures 3-4 As shown in the figure, on the basis of Embodiment 1, the pushing mechanism 10 includes: Pushing springs 10-1. There are a plurality of the pushing springs 10-1, and they are respectively embedded and welded in the connecting block 9 in pairs. The upper ends of the pushing springs 10-1 are welded and fixed to the inner top wall of the fixing block 8. Connecting bars 10-2. There are two of the connecting bars 10-2, and they are symmetrically arranged on the left and right in the rectangular cavity inside the tray 7. On the front and rear sides of the lower surface of the connecting bar 10-2, connecting rods 10-3 are welded and fixed. After the connecting rods 10-3 pass through the lower side wall of the tray 7, they are movably inserted into the fixed blocks 8; Movable sliders 10-4. There are four of the movable sliders 10-4, and they are welded and fixed to one side wall of the connecting block 9 in one-to-one correspondence. After the movable sliders 10-4 pass through the sliding grooves on the side walls of the fixed blocks 8, they are welded and fixed to the corresponding connecting rods 10-3; Pushing blocks 10-5. The pushing blocks 10-5 are suspended below the tray 7. The pushing blocks 10-5 are arranged in cooperation with the positioning mechanism 11. On the upper surface of the pushing blocks 10-5, pushing rods 10-6 are symmetrically fixed on the front and rear. After the pushing rods 10-6 pass through the lower side wall of the tray 7, they are fixedly connected to the bottom wall of the connecting bar 10-2. Embodiment 3

[0026] See Figure 3 、 Figures 5-6 As shown in Positioning blocks 11-1. The positioning blocks 11-1 abut against the lower surface of the pushing blocks 10-5. One side wall of the positioning blocks 11-1 abuts against one side wall of the convex blocks on the lower surface of the pushing blocks 10-5; Mounting plates 11-2. There are several of the mounting plates 11-2, and they are arranged at equal intervals between two symmetrically arranged front and rear support plates 3. Mounting seats 11-3 are welded and fixed on the mounting plates 11-2; Rack bars 11-4. There are several of the rack bars 11-4, and they are symmetrically arranged front and rear in the mounting seats 11-3. After the upper ends of the rack bars 11-4 pass through the top walls of the mounting seats 11-3, they are welded and fixed to the bottom wall of the positioning blocks 11-1. Between the two symmetrically arranged front and rear rack bars 11-4, gears 11-5 that mesh with each other are arranged. The gears 11-5 are arranged in meshing with the adjacent rack bars 11-4; On the lower side of the side wall of the rack bar 11-4 away from the gear 11-5, limit blocks 16 are welded and fixed. The limit blocks 16 are slidably arranged in the limit sliding grooves on the inner wall of the mounting seat 11-3, which can prevent the rack bars 11-4 from moving out of the mounting seats 11-3; Rotating shafts 11-6. There are two of the rotating shafts 11-6, and they are symmetrically arranged front and rear. The rotating shafts 11-6 are respectively rotatably connected through bearings to several mounting seats 11-3. The gears 11-5 are sleeved and welded and fixed on the corresponding rotating shafts 11-6; Positioning motor 11-7 is fixed to the right side wall of the mounting seat 11-3 on the right by bolts. The output shaft of the positioning motor 11-7 is fixedly connected to the right end of the rear rotating shaft 11-6. A protective cover 15 is sleeved outside the positioning motor 11-7, and the protective cover 15 is fixed to the side wall of the adjacent mounting seat 11-3 by bolts, which can protect the positioning motor 11-7 and increase the service life of the positioning motor 11-7. The positioning motor 11-7 is connected to the light sensor 13. Embodiment 4

[0027] See Figures 5-8 As shown, on the basis of Embodiment 3, the front and rear sides of the mounting plate 11-2 adjacent to the light sensor 13 are respectively welded and fixed to the front and rear support plates 3. The front and rear sides of several other mounting plates 11-2 are slidably arranged in the sliding grooves on the front and rear support plates 3 through sliding blocks. The several mounting plates 11-2 are connected by an adjusting mechanism 17. The rotating shaft 11-6 is composed of several sleeves 11-6-1 and several connecting shafts 11-6-2. The sleeve 11-6-1 is inserted and welded and fixed in the gear 11-5. The sleeve 11-6-1 is rotatably connected to the corresponding mounting plate 11-2 through a bearing. A connecting shaft 11-6-2 is welded and fixed to one end of the sleeve 11-6-1. The connecting shaft 11-6-2 is inserted into the adjacent sleeve 11-6-1. The strip-shaped groove on the outer wall of the connecting shaft 11-6-2 is inserted and matched with the convex strip on the inner wall of the sleeve 11-6-1. The sleeve 11-6-1 is connected to the output shaft of the positioning motor 11-7. The adjusting mechanism 17 includes: Driven connecting rods 17-1. There are four driven connecting rods 17-1, and they are symmetrically arranged in pairs in the front and rear and rotatably connected to the lower surface of the mounting plates 11-2 on the left and right adjacent to the middle side through shaft rods. The other ends of the driven connecting rods 17-1 are rotatably connected to the driving connecting rods 17-2 through shaft rods. The driving connecting rods 17-2 are rotatably connected to both sides of the lower surface of the middle mounting plate 11-2 through shaft rods. Several teeth 17-3 are evenly welded and fixed at the ends of the driving connecting rods 17-2 located on the lower side of the mounting plate 11-2. The teeth 17-3 on the two driving connecting rods 17-2 that are symmetrically arranged in the front and rear are meshed with each other. Rotating motor 17-4. The rotating motor 17-4 is embedded and fixed to the inside of the middle mounting plate 11-2 by bolts. The rotating motor 17-4 is connected to the shaft rod on the front right driving connecting rod 17-2. The shaft rods on the two driving connecting rods 17-2 arranged diagonally are connected by a synchronous pulley transmission assembly.

[0028] When using the present invention, the items to be transported are placed on the tray 7, and the driving motor 6 is started. The driving motor 6 drives the sprocket 4 and the chain 5 to rotate, and the chain 5 drives the connecting block 9 to move. The connecting block 9 drives the tray 7 to move through the fixed block 8. When the tray 7 moves to the upper side of the light sensor 13, the light sensor 13 transmits a signal to the positioning motor 11-7, and the positioning motor 11-7 drives the rotating shaft 11-6 to rotate, and the rotating shaft 11-6 drives several gears 11-5 thereon to rotate, and the gear 11-5 drives the corresponding rack 11-4 to move up and down, and the rack 11-4 drives the positioning block 11-1 to move up and down. When the positioning block 11-1 moves upward, the pushing block 10-5 moves upward, and the pushing block 10-5 drives the connecting bar 10-2 to move upward through the pushing rod 10-6, and the connecting bar 10-2 drives the movable slider 10-4 to move upward through the connecting rod 10-3, and the movable slider 10-4 drives the connecting block 9 to move upward, so that the connecting block 9 is moved out of the chain 5. At this time, the pushing spring 10-1 is compressed, and when the positioning block 11-1 moves downward, it is separated from the pushing block 10-5, which does not affect the movement of the tray 7. The elastic force of the pushing spring 10-1 drives the connecting block 9 to move downward, so that it can be inserted into the chain 5, thereby improving the positioning effect; The rotating motor 17-4 can be started according to the size of the pallet 7. The rotating motor 17-4 drives the active connecting rod 17-2 connected thereto to rotate. The shaft of the active connecting rod 17-2 drives the diagonal active connecting rod 17-2 to rotate through the synchronous wheel transmission assembly. The active connecting rod 17-2 drives the corresponding front and rear active connecting rods 17-2 to rotate in opposite directions through the teeth 17-3 thereon. The active connecting rod 17-2 drives the driven connecting rod 17-1 to rotate, thereby ensuring the synchronous movement of the distance between the mounting plates 11-2, and adjusting the distance between several mounting plates 11-2 and the positioning block 11-1 to meet the use of pallets 7 of different sizes.

[0029] Compared with the prior art, the beneficial effects of this specific implementation are as follows: 1. Through the intelligent linkage control of the light sensor 13 and the positioning mechanism 11, the position of the tray 7 is monitored in real time and the motor drive is triggered to realize the automatic positioning and smooth separation of the tray 7, ensuring that the items are accurately stopped when transported to the designated position, greatly improving the transportation efficiency and automation level; 2. The adjustment mechanism 17 adopts connecting rod and synchronous wheel transmission, which can flexibly and synchronously adjust the spacing of multiple sets of mounting plates 11-2, easily adapt to the requirements of pallets 7 of different sizes, and enhance the versatility of the equipment; the support roller 18 and the adjustable sprocket 4 structure further optimize the conveying smoothness and reduce friction loss; 3. The push mechanism 10 combines the dual functions of spring reset and mechanical linkage to ensure the quick separation / engagement of the connecting block 9 and the chain 5, and the action is reliable; the chamfer design of the resistance block 14 strengthens the contact stability of the chain 5, effectively reduces the risk of chain derailment, and ensures long-term smooth operation; 4. The protective cover 15 comprehensively protects the motor from environmental damages such as dust and moisture. The limit block 16 and the precision sliding groove design jointly prevent the components from dislocating, significantly extending the service life of the equipment, while reducing the maintenance cost and failure rate.

[0030] For those skilled in the art, they can modify the technical solutions recorded in the foregoing embodiments and perform equivalent replacements of some technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A positioning tooling for an accumulation chain return conveyor line, characterized in that: It includes a support frame (1), support rods (2), support plates (3), sprockets (4) and a chain (5). Two support frames (1) are symmetrically arranged up and down. A plurality of support rods (2) are equally spaced and fixed to the lower sides of the front and rear sides of the support frame (1). The lower ends of the upper support rods (2) are fixed to the top wall of the lower support frame (1). Support plates (3) are fixed to the front and rear sides above the support frame (1). Chains (5) are arranged inside the support plates (3). Sprockets (4) are arranged on both sides inside the chain (5). The front and rear ends of the sprockets (4) are respectively rotatably connected to the front and rear inner walls of the support plate (3) through bearings. The two symmetrically arranged front and rear sprockets (4) are connected by a connecting rod. A driving motor (6) is arranged inside the two front support plates (3). The two driving motors (6) are arranged diagonally. The output shaft of the driving motor (6) is connected to the adjacent connecting rod. It further includes: Trays (7), there are a plurality of the trays (7), and their lower surfaces are respectively in contact with the upper sides of the two symmetrically arranged front and rear support plates (3). Fixed blocks (8) are symmetrically fixed to the front and rear sides on the left and right below the trays (7). Connecting blocks (9) are movably inserted into the fixed blocks (8). The connecting blocks (9) are inserted in cooperation with the sprockets (4). The connecting blocks (9) are connected to the trays (7) through a pushing mechanism (10); Positioning mechanisms (11), there are two of the positioning mechanisms (11), and they are respectively arranged between the adjacent two support plates (3). The positioning mechanisms (11) are arranged in cooperation with the pushing mechanism (10); Connecting plates (12), there are two of the connecting plates (12), and they are arranged in one-to-one correspondence between the two support plates (3). The connecting plates (12) are arranged diagonally. The front and rear sides of the connecting plates (12) are fixed to the front and rear support plates (3); Light sensors (13), there are two of the light sensors (13), and they are respectively fixed on the upper surfaces of the connecting plates (12). The light sensors (13) are connected to the positioning mechanisms (11) through a controller.

2. The positioning tooling of an accumulation chain return conveyor line according to claim 1, characterized in that: The pushing mechanism (10) includes: Pushing springs (10-1), there are a plurality of the pushing springs (10-1), and they are embedded and fixed in the connecting blocks (9) in pairs. The upper ends of the pushing springs (10-1) are fixed to the inner top wall of the fixed blocks (8); Connecting bars (10-2), there are two of the connecting bars (10-2), and they are symmetrically arranged on the left and right inside the rectangular cavity of the tray (7). Connecting rods (10-3) are fixed to the front and rear sides of the lower surfaces of the connecting bars (10-2). After passing through the lower side wall of the tray (7), the connecting rods (10-3) are movably inserted into the fixed blocks (8); Movable sliders (10-4), there are four of the movable sliders (10-4), and they are respectively fixed to one side wall of the connecting blocks (9). After passing through the chutes on the side walls of the fixed blocks (8), the movable sliders (10-4) are fixedly connected to the corresponding connecting rods (10-3); A pushing block (10-5) is suspended on the lower side of the tray (7). The pushing block (10-5) is arranged in coordination with the positioning mechanism (11). Push rods (10-6) are symmetrically fixed to the upper surface of the pushing block (10-5) in the front and rear directions. After the pushing rods (10-6) pass through the lower side wall of the tray (7), they are fixedly connected to the bottom wall of the connecting strip (10-2).

3. The positioning tooling of a palletizing chain return conveyor line according to claim 1, characterized in that: A resistance block (14) is sleeved and fixed on the lower end of the connecting block (9); the resistance block (14) and the chain (5) are matched and inserted in a resistance manner, and the two side edges of the lower side of the resistance block (14) are chamfered.

4. The positioning tooling of an accumulation chain return conveyor line according to claim 2, characterized in that: The positioning mechanism (11) comprises: A positioning block (11-1), wherein the positioning block (11-1) abuts against the lower surface of the pushing block (10-5), and a side wall of the positioning block (11-1) abuts against a side wall of a protrusion on the lower surface of the pushing block (10-5); A mounting plate (11-2), wherein the mounting plates (11-2) are in plurality and are arranged equidistantly between two front and rear symmetrical support plates (3), and each mounting plate (11-2) is fixed with a mounting seat (11-3); Racks (11-4), wherein there are a plurality of racks (11-4) which are symmetrically arranged in the mounting seat (11-3), the upper ends of the racks (11-4) passing through the top wall of the mounting seat (11-3) are fixed on the bottom wall of the positioning block (11-1), and two meshing gears (11-5) are arranged between the two symmetrical racks (11-4), and the gears (11-5) are meshed with adjacent racks (11-4); Rotating shafts (11-6), there are two rotating shafts (11-6) which are symmetrically arranged front and back, the rotating shafts (11-6) are respectively screwed onto a plurality of mounting seats (11-3) through bearings, and the gears (11-5) are sleeved and fixed onto corresponding rotating shafts (11-6); A positioning motor (11-7), wherein the positioning motor (11-7) is fixed on a side wall of a mounting seat (11-3) on one side, an output shaft of the positioning motor (11-7) is fixedly connected to one end of one of the rotating shafts (11-6), and the positioning motor (11-7) is connected to a light sensor (13).

5. The positioning tooling of an accumulation chain return conveyor line according to claim 4, characterized in that: The outer side of the positioning motor (11-7) is provided with a protective cover (15), and the protective cover (15) is fixed on the side wall of the adjacent mounting seat (11-3).

6. The positioning tooling of an accumulation chain return conveyor line according to claim 4, characterized in that: A limiting block (16) is fixed to the lower side of a side wall of the rack (11-4) away from the gear (11-5), and the limiting block (16) is slidably arranged in a limiting sliding groove on the inner wall of the mounting seat (11-3).

7. The positioning tooling of an accumulation chain return conveyor line according to claim 4, characterized in that: The front and rear sides of the mounting plate (11-2) adjacent to the light sensor (13) are respectively fixed on the front and rear support plates (3). The front and rear sides of several other mounting plates (11-2) are slidably arranged in the sliding grooves on the front and rear support plates (3) through sliding blocks. Several mounting plates (11-2) are connected by an adjusting mechanism (17). The rotating shaft (11-6) is composed of several sleeves (11-6-1) and several connecting shafts (11-6-2). The sleeve (11-6-1) is inserted and fixed in the gear (11-5). The sleeve (11-6-1) is rotatably connected to the corresponding mounting plate (11-2) through a bearing. A connecting shaft (11-6-2) is fixed on one end of the sleeve (11-6-1). The connecting shaft (11-6-2) is inserted into the adjacent sleeve (11-6-1). The strip-shaped groove on the outer wall of the connecting shaft (11-6-2) is inserted in cooperation with the convex strip on the inner wall of the sleeve (11-6-1). The sleeve (11-6-1) is connected to the output shaft of the positioning motor (11-7).

8. The positioning tooling of an accumulation chain return conveyor line according to claim 7, characterized in that: The adjusting mechanism (17) includes: Driven connecting rods (17-1). There are four driven connecting rods (17-1), and they are symmetrically arranged in pairs in the front and rear and rotatably connected to the lower surface of the left and right mounting plates (11-2) adjacent to the middle side through shaft rods. The other ends of the driven connecting rods (17-1) are rotatably connected to driving connecting rods (17-2) through shaft rods. The driving connecting rods (17-2) are rotatably connected to both sides of the lower surface of the middle mounting plate (11-2) through shaft rods. Several teeth (17-3) are evenly fixed at equal angles on the end of the driving connecting rod (17-2) located on the lower side of the mounting plate (11-2). The teeth (17-3) on the two driving connecting rods (17-2) that are symmetrically arranged in the front and rear are meshed with each other; A rotating motor (17-4). The rotating motor (17-4) is embedded and fixed inside the middle mounting plate (11-2). The rotating motor (17-4) is connected to the shaft rod on one of the driving connecting rods (17-2). The shaft rods on the two driving connecting rods (17-2) arranged diagonally are connected through a synchronous pulley transmission assembly.

9. The positioning tooling of an accumulation chain return conveyor line according to claim 1, characterized in that: Support rollers (18) are embedded and rotatably connected to the front and rear sides of the top wall of the support plate (3). The upper sides of the support rollers (18) are in contact with the tray (7).

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