A link-type self-detaching accumulation conveyor

Abstract

The application discloses a connecting rod type self-detaching accumulation and placing conveyor, which comprises a straight conveying frame and a turnover track frame, the inner part of the straight track frame and the turnover track frame is respectively provided with a straight conveying track and a turnover conveying track, the surface of the turnover track frame is rotationally connected with rotating shafts on both sides, the surface of the rotating shafts is provided with transmission chain wheels and auxiliary turnover wheels, three rows of chains are transmissionally connected between adjacent two transmission chain wheels, and a plurality of tray trolleys are arranged above the three rows of chains, and the application relates to the technical field. The connecting rod type self-detaching accumulation and placing conveyor can realize accumulation and placing of the tray trolleys following the front tray trolleys which stop under the action of the limiters, and the above-mentioned action can be repeated, so that a plurality of tray trolleys can be buffered and can all be detached from the circulating movement chain. Compared with the traditional friction wheel type conveyor, the energy consumption is reduced, the accumulation and placing function can be realized without the friction wheel, the stability is improved, and the maintenance cost is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field, in particular to a connecting rod type self-detaching accumulation conveyor. BACKGROUND

[0002] With the substantial rise of China's industrial strength, factory automation production line is growing, and the accumulation conveyor as a comprehensive space conveying system has developed rapidly. The accumulation conveyor has flexible and variable line, simple and reliable structure, and can meet the needs of various automation production lines. It is widely used in automobile, metallurgy, construction and other industries, especially in the automobile industry, realizing the automatic conveying and on-line caching of parts, thereby improving the production efficiency. When the accumulation conveyor transports workpieces, it can stop and cache at any position in the production line, and can continue to transport workpieces as needed. The pallets can circulate between the upper and lower machine bodies. Therefore, the accumulation conveyor can realize workpiece transportation and caching function. Through the cooperation of multiple accumulation conveyors, all processes in the factory are connected into a complete system. The conveying time between stations is greatly saved, thereby improving the production efficiency.

[0003] Most of the existing accumulation conveyors use friction wheels to realize the transportation and caching of pallets. When there is no obstruction, the friction drives the pallet to move. When the blocking force is greater than the friction force set by the friction wheel, the caching of the pallet is realized. However, the friction plate is also worn out when the friction wheel generates resistance, and the friction force also increases the energy consumption of the system. Therefore, the conveyor that can replace the friction wheel and realize the accumulation function has great research value. In view of the above shortcomings, the present application makes the following improvements. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a connecting rod type self-detaching accumulation conveyor, which solves the problems mentioned in the background art.

[0005] To achieve the above purpose, the present application realizes the following technical scheme: a connecting rod type self-detaching accumulation conveyor, comprising a straight line conveying frame and a turnover track frame, the inner part of the straight line track frame and the turnover track frame is respectively provided with a straight line conveying track and a turnover conveying track, the surface of the turnover track frame is rotatably connected with a rotating shaft on both sides, and the surface of the rotating shaft is provided with a transmission sprocket and an auxiliary turnover wheel, three rows of chains are transmission connected between adjacent two transmission sprockets, and a plurality of pallet trolleys are arranged above the three rows of chains, and the surface of the straight line track frame is respectively provided with a limit stop and a retreat stop.

[0006] The pallet trolley travels along the straight line conveying track and makes one-way circular motion through the turnover conveying track with the assistance of the auxiliary turnover wheel, thereby transporting workpieces;

[0007] The stopper controls the stop of the tray trolley in the moving state, and the tray trolley is blocked by the retreat stopper to perform the caching operation.

[0008] Preferably, the tray trolley comprises a tray plate and mounting seats arranged on both sides of the tray plate, and the top surface of the mounting seat is fixedly connected with a connecting rod support, one side of the connecting rod support is rotatably provided with a short connecting rod, one end of the short connecting rod is rotatably provided with a long connecting rod, and one end of the long connecting rod is rotatably connected with a driving tooth block, the surface of the driving tooth block is provided with teeth engaged with three rows of chains, and one side of the mounting seat is fixedly provided with a stop rod.

[0009] Preferably, the top surface of the inner wall of the mounting seat is fixedly provided with a sleeve, and the bottom end of the sleeve is fixedly connected with the top surface of the driving tooth block through a first spring, and the surface of the mounting seat is rotatably provided with a roller.

[0010] Preferably, the opposite sides of the two mounting seats are rotatably provided with rollers, and the rollers are located in the tooth grooves of the auxiliary turnover wheels.

[0011] Preferably, the inside of the mounting seat is provided with a through groove matched with the short connecting rod and the long connecting rod.

[0012] Preferably, the retreat stopper comprises a support fixedly arranged on the top surface of the linear track frame, and the top surface of the inner wall of the support is provided with an expansion support rod, and the bottom end of the expansion support rod is rotatably provided with a retreat wheel through a connecting block.

[0013] Preferably, a second spring is fixedly arranged between the top surface of the connecting block and the inner wall of the support, and the second spring is wound on the surface of the expansion support rod.

[0014] Preferably, the expansion support rod is composed of a plug pin and a hollow cylinder, and the plug pin is slidably arranged in the inside of the hollow cylinder.

[0015] Preferably, the surface of the linear track frame is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with one end of a rotating shaft through a shaft coupling.

[0016] Preferably, the number of teeth of the auxiliary turnover wheel and the transmission sprocket is the same.

[0017] Beneficial effects

[0018] The present application provides a connecting rod type self-detaching accumulation conveyor, which has the following advantages compared with the prior art

[0019] Beneficial effects:

[0020] (1) The linkage-type self-detaching accumulation conveyor can achieve accumulation by controlling the front pallet trolley to stop under the action of the limiter. Repeating the above actions can achieve buffering of multiple pallet trolleys and all of them can be detached from the chain of cyclic movement. Compared with the traditional friction wheel conveyor, it reduces energy consumption, can achieve accumulation function without friction wheel, improves stability, and has low maintenance cost.

[0021] (2) The linkage-type self-detaching accumulation conveyor has a simple mechanical structure, low failure rate, high degree of automation, and simple operation and control. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall assembly structure of the present invention;

[0023] Figure 2 This is a top view of the structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the engagement position of the pallet trolley in this invention;

[0025] Figure 4 This is a partial cross-sectional view of the disengaged position of the pallet trolley in this invention.

[0026] Figure 5 This is a schematic diagram of the pallet trolley structure of the present invention;

[0027] Figure 6 This is a cross-sectional view of the pallet trolley of the present invention;

[0028] Figure 7 This is a schematic diagram of the pallet trolley flipping process of the present invention;

[0029] Figure 8 This is a schematic diagram of the backstop structure of the present invention.

[0030] In the diagram: 1. Three-row chain; 2. Drive sprocket; 3. Auxiliary tilting wheel; 4. Rotating shaft; 5. Limiter; 6. Anti-reverse device; 6-1. Bracket; 6-2. Anti-reverse wheel; 6-3. Second spring; 6-4. Telescopic support rod; 7. Pallet trolley; 7-1. Pallet plate; 7-2. Mounting base; 7-3. Roller; 7-4. Short connecting rod; 7-5. Long connecting rod; 7-6. Connecting rod support; 7-7. Drive tooth block; 7-8. First spring; 7-9. Roller; 7-10. Sleeve; 7-11. Stop rod; 8. Linear conveyor track; 9. Linear track frame; 10. Tilting conveyor track; 11. Tilting track frame; 12. Drive motor; 13. Telescopic rod. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1

[0033] Please see Figures 1 to 8 As shown, the present invention provides a technical solution, with specific improvements as follows:

[0034] A linkage-type self-detaching accumulation conveyor includes a linear conveying frame 8 and a tilting track frame 11. The linear conveying track 8 and the tilting track frame 11 are respectively provided inside the linear conveying track 8 and the tilting conveying track 10. Rotating shafts 4 are rotatably connected to both sides of the surface of the tilting track frame 11. The surface of the rotating shaft 4 is provided with a transmission sprocket 2 and an auxiliary tilting wheel 3. The auxiliary tilting wheel 3 and the transmission sprocket 2 have the same number of teeth. A drive motor 12 is fixedly connected to the surface of the linear track frame 9. The output end of the drive motor 12 is fixedly connected to one end of the rotating shaft 4 through a coupling. Three rows of chains 1 are connected between two adjacent transmission sprockets 2. Several pallet trolleys 7 are arranged above the three rows of chains 1. Limiters 5 and anti-reverse devices 6 are respectively provided on the surface of the linear track frame 9.

[0035] The pallet trolley 7 travels along the straight conveyor track 8 and, with the assistance of the auxiliary tilting wheel 3, performs a one-way cyclical motion through the tilting conveyor track 10, thereby transporting the workpiece.

[0036] The pallet trolley 7 in motion is stopped by the telescopic rod 13 inside the limiter 5, and the pallet trolley 7 is blocked by the anti-reverse device 6 for buffering operation.

[0037] The pallet trolley 7 includes a pallet plate 7-1 and mounting seats 7-2 disposed on both sides of the pallet plate 7-1. A connecting rod support 7-6 is fixedly connected to the top surface of the mounting seat 7-2. A wedge-shaped ramp is provided on the mounting seat 7-2. A short connecting rod 7-4 is rotatably mounted on one side of the connecting rod support 7-6, and a long connecting rod 7-5 is rotatably mounted on one end of the short connecting rod 7-4. A through groove adapted to the short connecting rod 7-4 and the long connecting rod 7-5 is opened inside the mounting seat 7-2. A drive gear block 7-7 is rotatably connected to one end of the long connecting rod 7-5. The surface is provided with teeth that mesh with the three-row chain 1. A stop rod 7-11 is fixedly provided on one side of the mounting base 7-2. A sleeve 7-10 is fixedly provided on the top surface of the inner wall of the mounting base 7-2, and the bottom end of the sleeve 7-10 is fixedly connected to the top surface of the drive tooth block 7-7 through the first spring 7-8. A roller 7-3 is rotatably provided on the surface of the mounting base 7-2. Rollers 7-9 are rotatably provided on the opposite sides of the two mounting bases 7-2, and the rollers 7-9 are located in the tooth groove of the auxiliary tilting wheel 3. The axis of the rollers 7-9 is on the pitch circle of the auxiliary tilting wheel 3.

[0038] During operation, the pallet trolley 7 makes a one-way circular motion on the linear conveying track 8. The telescopic rod 13 inside the control limiter 5 extends and collides with the short connecting rod 7-4, blocking the pallet trolley 7 moving on the linear conveying track 8. The short connecting rod 7-4 rotates due to the impact, causing the long connecting rod 7-5 and the drive tooth block 7-7 connected at one end to move upward. The first spring 7-8 is compressed, and the drive tooth block 7-7 disengages from the three-row chain 1. At this time, the pallet trolley 7 stops moving.

[0039] When the preceding pallet trolley 7 is buffered, the following pallet trolley 7 collides with the stop rod 7-11 on the buffered pallet trolley 7. Similarly, the long connecting rod 7-5 on the following pallet trolley 7 causes the drive tooth block 7-7 to disengage. The buffering is repeated in the same way as the preceding pallet trolley 7, so that multiple pallet trolleys 7 can be buffered. When buffering is not needed, the limiter 5 is de-energized and controls the telescopic rod 13 to reset and retract. Without the limiter 5 blocking, the first spring 7-8 rebounds. At this time, the drive tooth block 7-7 is controlled to engage with the three rows of chains 1 in a circular motion, driving the pallet trolley 7 to continue circulating along the conveyor track. The following pallet trolleys 7 successively engage with the three rows of chains 1 to continue circulating.

[0040] When the pallet trolley 7 passes through the tilting conveyor track 10, since the auxiliary tilting wheel 3 and the transmission sprocket 2 have the same number of teeth, the bottom rollers 7-9 of the pallet trolley 7 just mesh with the auxiliary tilting wheel 3, which can assist the pallet trolley 7 in the upward and downward tilting process, prevent jamming during the tilting process, and make the pallet trolley 7 move in a unidirectional cycle on the upper and lower layers of the conveyor.

[0041] Example 2

[0042] Based on Example 1, please refer to Figures 1 to 8 As shown, the specific improvements are as follows:

[0043] The anti-reverse device 6 includes a bracket 6-1 fixedly installed on the top surface of the linear track frame 9, and a telescopic support rod 6-4 is provided on the top surface of the inner wall of the bracket 6-1. An anti-reverse wheel 6-2 is rotatably installed at the bottom end of the telescopic support rod 6-4 through a connecting block. A second spring 6-3 is fixedly installed between the top surface of the connecting block and the inner wall of the bracket 6-1, and the second spring 6-3 is wound around the surface of the telescopic support rod 6-4. The telescopic support rod 6-4 is composed of a pin and a hollow cylinder, and the pin is slidably installed inside the hollow cylinder.

[0044] Whenever the pallet trolley 7 passes by, the wedge-shaped ramp on the mounting base 7-2 can push up the anti-reverse wheel 6-2. After the pallet trolley 7 passes by, the anti-reverse wheel 6-2 can prevent the pallet trolley 7 from moving in the opposite direction under the reset of the second spring 6-3. Therefore, when the drive tooth block 7-7 disengages, the anti-reverse device 6 resets, blocking the pallet trolley 7 to achieve buffering.

[0045] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-disengaging accumulation conveyor of the articulated type, comprising a rectilinear rail frame (9) and a turnover rail frame (11), the inner part of which is provided with a rectilinear conveying rail (8) and a turnover conveying rail (10), respectively, characterized in that: Both sides of the surface of the turnover track frame (11) are rotationally connected with rotating shafts (4), and the surface of the rotating shaft (4) is provided with a transmission sprocket (2) and an auxiliary turnover wheel (3), adjacent two transmission sprockets (2) are transmissionally connected with three rows of chains (1), and the upper side of the three rows of chains (1) is provided with a plurality of tray trolleys (7), and the surface of the linear track frame (9) is respectively provided with a limiter (5) and a retreat stopper (6); The tray trolley (7) travels along the linear conveying track (8) and makes one-way circular motion through the turnover conveying track (10) with the assistance of the auxiliary turnover wheel (3), so as to transport the workpiece; The tray trolley (7) in the motion state is stopped by the telescopic rod (13) arranged in the limiter (5), and then the tray trolley (7) is blocked by the retreat stopper (6) to perform the caching operation. The tray trolley (7) comprises a tray flat plate (7-1) and mounting seats (7-2) arranged on both sides of the tray flat plate (7-1), and the top surface of the mounting seat (7-2) is fixedly connected with a connecting rod support (7-6), one side of the connecting rod support (7-6) is rotationally provided with a short connecting rod (7-4), one end of the short connecting rod (7-4) is rotationally provided with a long connecting rod (7-5), one end of the long connecting rod (7-5) is rotationally connected with a driving tooth block (7-7), the surface of the driving tooth block (7-7) is provided with teeth engaged with the three rows of chains (1), and one side of the mounting seat (7-2) is fixedly provided with a stop rod (7-11). The top surface of the inner wall of the mounting seat (7-2) is fixedly provided with a sleeve (7-10), and the bottom end of the sleeve (7-10) is fixedly connected with the top surface of the driving tooth block (7-7) through the first spring (7-8), and the surface of the mounting seat (7-2) is rotationally provided with a roller (7-3). The retreat stopper (6) comprises a support (6-1) fixedly arranged on the top surface of the linear track frame (9), and the top surface of the inner wall of the support (6-1) is provided with a telescopic supporting rod (6-4), and the bottom end of the telescopic supporting rod (6-4) is rotationally provided with a retreat wheel (6-2) through a connecting block.

2. A link-type self-disengaging accumulation conveyor according to claim 1, characterized in that: Opposite sides of the two mounting seats (7-2) are rotationally provided with rollers (7-9), and the rollers (7-9) are located in the tooth grooves of the auxiliary turnover wheel (3).

3. A link-type self-disengaging accumulation conveyor according to claim 2, characterized in that: The inside of the mounting seat (7-2) is provided with a through groove matched with the short connecting rod (7-4) and the long connecting rod (7-5).

4. A link-type self-disengaging accumulation conveyor according to claim 3, characterized in that: The top surface of the connecting block and the inner wall of the support (6-1) are fixedly provided with a second spring (6-3), and the second spring (6-3) is wound on the surface of the telescopic supporting rod (6-4).

5. A link-type self-disengaging accumulation conveyor according to claim 4, characterized in that: The telescopic supporting rod (6-4) is composed of a plug pin and a hollow cylinder, and the plug pin is slidingly arranged in the inside of the hollow cylinder.

6. A link-type self-disengaging accumulation conveyor according to claim 1, characterized in that: The surface of the linear track frame (9) is fixedly connected with a driving motor (12), and the output end of the driving motor (12) is fixedly connected with one end of the rotating shaft (4) through a shaft coupling.

7. A link-type self-disengaging accumulation conveyor according to claim 1, characterized in that: The number of teeth of the auxiliary turnover wheel (3) and the transmission sprocket (2) is the same.

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