A dead knot straightening mechanism

Abstract

The application discloses a tight dead knot correcting mechanism and belongs to the technical field of chain correction. A plurality of correcting assemblies for correcting chain dead knots are arranged on a workbench. Each correcting assembly comprises a press wheel arranged on the workbench and a correcting sprocket arranged on the two sides of the press wheel. The chain sequentially passes through the correcting sprocket and the press wheel. A driving mechanism for driving the correcting sprocket and the press wheel to rotate simultaneously is arranged on the workbench. The application has the effect that the staff can conveniently adjust the chain dead knot.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chain straightening, in particular to a tight knot straightening mechanism. BACKGROUND

[0002] Chain is generally a metal chain ring or ring, and is commonly used for transmission and traction before a machine. It is mainly divided into transmission chain, conveying chain, traction chain and special-purpose chain. The transmission chain is mainly used for power transmission, the conveying chain is mainly used for conveying materials, the traction chain is mainly used for traction and hoisting, and the special-purpose chain is a chain used in special-purpose mechanical devices and having special functions and structures.

[0003] During the collection and arrangement of chains, dead knots may be generated. In the traditional method for processing chain dead knots, manual operation is mostly relied on. For some small chain dead knots, experienced workers can manually adjust and comb the chains by using simple tools such as pliers and wrenches, so that the chains can be restored to normal. The advantage of this method is that it is flexible to operate and does not require complex equipment investment. In some cases where the precision requirement is not high and the number of chains is small, the problem can be quickly solved. When a larger chain is dead-knotted, manual processing becomes extremely difficult. Since the large chain is structurally strong, bulky and the dead knot is often complex in stress, it is not convenient for workers to adjust the chain dead knot. SUMMARY

[0004] In order to solve the problem that it is not convenient for workers to adjust the chain dead knot due to the fact that the large chain is structurally strong, bulky and the dead knot is often complex in stress, the present application provides a tight knot straightening mechanism.

[0005] The tight knot straightening mechanism provided by the present application adopts the following technical solution:

[0006] The tight knot straightening mechanism comprises a workbench, a plurality of straightening assemblies for straightening chain dead knots are arranged on the workbench, each straightening assembly comprises a pressing wheel arranged on the workbench and a straightening sprocket arranged on both sides of the pressing wheel, a chain sequentially passes through the straightening sprocket and the pressing wheel, and a driving mechanism for driving the straightening sprocket and the pressing wheel to rotate simultaneously is arranged on the workbench.

[0007] By adopting the above technical solution, the chain to be straightened sequentially passes through a plurality of straightening assemblies, and then the straightening sprocket and the pressing wheel are driven to rotate by the driving assembly. The pressing wheel presses the chain on the straightening sprocket during rotation. The plurality of straightening assemblies drive the chain to move, so that the chain generates tension during movement, thereby facilitating the straightening of the dead knot on the chain.

[0008] Preferably, the bottom surface of the workbench is fixed with a mounting frame, the driving mechanism comprises a motor fixed to the bottom surface of the mounting frame, the bottom surface of the correcting sprocket is fixed with a rotating shaft one, the bottom surface of the pressing wheel is fixed with a rotating shaft two, the bottom ends of the rotating shaft one and the rotating shaft two penetrate through the bottom surface of the workbench, the rotating shaft one and the rotating shaft two are rotationally connected with the workbench, the bottom end of the rotating shaft one is provided with a gear one, the bottom end of the rotating shaft two is provided with a gear two, the gear two is engaged with the two gear ones respectively, and the top end of the output shaft of the motor is fixedly connected with the bottom end of the rotating shaft two located at the end of the workbench.

[0009] By adopting the technical scheme, the motor is started, the output shaft of the motor drives the rotating shaft two to rotate, the rotating shaft two drives the gear two to rotate, the gear two drives the gear one to rotate, the gear one drives the rotating shaft one to rotate, and the rotating shaft one drives the correcting sprocket to rotate, so that the correcting sprocket drives the chain to move forward, a pulling force is generated on the chain, and then the dead knot on the chain is opened.

[0010] Preferably, the top surface of the workbench is provided with a deviation correcting wheel and a conveying sprocket at one end, the chain penetrates between the deviation correcting wheel and the conveying sprocket, rotating shaft threes are fixedly arranged on the deviation correcting wheel and the conveying sprocket, the bottom ends of the rotating shaft threes penetrate through the bottom surface of the workbench, the rotating shaft threes are rotationally connected with the workbench, the bottom ends of the two rotating shaft threes are fixed with gear threes, and the two gear threes are engaged.

[0011] By adopting the technical scheme, the conveying sprocket and the deviation correcting wheel are arranged at one end of the workbench, when the chain moves, the chain drives the conveying sprocket to rotate, the conveying sprocket drives the rotating shaft three to rotate, the rotating shaft three drives the gear three to rotate, the gear three drives the other gear three to rotate, the other gear three drives the other rotating shaft three to rotate, the other rotating shaft three drives the deviation correcting wheel to rotate, and the deviation correcting wheel presses the chain on the conveying sprocket, so that the possibility of loosening of the chain in the conveying process is reduced.

[0012] Preferably, a guide wheel is arranged between two adjacent correcting assemblies, and the guide wheel is located outside between the two correcting assemblies.

[0013] By adopting the technical scheme, the guide wheel is arranged between the two adjacent correcting assemblies, so that the angle of the chain wound between the two adjacent correcting assemblies is increased, and then the chain is facilitated to pass from one correcting assembly to another correcting assembly.

[0014] Preferably, the top surface of the workbench is provided with a plurality of pairs of guide grooves, the plurality of pairs of guide grooves correspond to a plurality of the correcting assemblies, each pair of the guide grooves is located on the two sides of the pressing wheel, the inner bottom surface of the guide groove is provided with a waist-shaped groove, the shaft one passes through the waist-shaped groove, the bottom surface of the workbench is fixed with a plurality of mounting plates, the plurality of mounting plates correspond to the plurality of correcting assemblies respectively, the waist-shaped groove penetrates the mounting plate, the shaft one passes through the waist-shaped groove and penetrates the mounting plate, the shaft two penetrates the mounting plate, the shaft two is rotationally connected with the mounting plate, and the mounting plate is provided with a tensioning piece for tensioning the correcting sprocket.

[0015] By adopting the above technical scheme, the waist-shaped groove is arranged on the top surface of the workbench, and the shaft one passes through the waist-shaped groove. When the correcting sprocket rotates to convey the chain, the chain is in a tension state due to the tight knot, at this time, the chain provides a pushing force to the correcting sprocket, the correcting sprocket drives the shaft one to move along the waist-shaped groove, and the tension of the chain is relieved, thereby reducing the possibility of damage of the chain during the correcting process.

[0016] Preferably, the tensioning piece comprises a fixed block fixed to the bottom surface of the mounting plate, a fixed rod fixed to the side surface of the fixed block, a stop block fixed to the end surface of the fixed rod away from the fixed block, a moving block slidably arranged on the fixed rod, a connecting rod rotationally installed at both ends of the moving block, a circular ring fixed to the end of the connecting rod away from the moving block, the circular ring being sleeved on the outer surface of the shaft one, the circular ring being rotationally connected with the shaft one, a spring being sleeved on the fixed rod, one end of the spring being abutted against the side surface of the moving block away from the fixed block, and the other end of the spring being abutted against the side surface of the stop block close to the moving block.

[0017] By adopting the above technical scheme, the waist-shaped groove is arranged on the top surface of the workbench, and the shaft one passes through the waist-shaped groove. When the correcting sprocket rotates to convey the chain, the chain is in a tension state due to the tight knot, at this time, the chain provides a pushing force to the correcting sprocket, the correcting sprocket drives the shaft one to move along the waist-shaped groove, and the tension of the chain is relieved, thereby reducing the possibility of damage of the chain during the correcting process.

[0018] Preferably, the top surface of the workbench is provided with a triangular block away from one end of the conveying sprocket, the pointed ends of the triangular block are provided with rounded corners, and one of the pointed ends of the triangular block points to the outside of the workbench.

[0019] By adopting the above technical scheme, when the chain is corrected, the chain is guided to pass through the triangular block in the conveying process, and one of the sharp ends of the triangular block limits the chain at the edge of the workbench, so that the worker can visually detect the corrected chain.

[0020] Preferably, the top surface of the workbench is provided with a deflection wheel at one end away from the conveying sprocket, and the deflection wheel is located on the side of the triangular block close to the conveying sprocket. The output end of the chain sequentially passes through the triangular block and the deflection wheel.

[0021] By adopting the above technical scheme, when the chain is guided to pass through the triangular block and is visually detected by the worker, the chain is guided by the deflection wheel to convey the chain in a specified direction, so that the chain can enter the next process for processing.

[0022] Preferably, a plurality of the correction assemblies are arranged in a circular arc on the top surface of the workbench.

[0023] By adopting the above technical scheme, the plurality of correction assemblies are arranged in a circular arc on the workbench, so that when the plurality of correction assemblies convey the chain, the adjacent two chain plates are rotated, and the dead knot on the chain is corrected.

[0024] In summary, the present application has at least one of the following beneficial technical effects:

[0025] 1. The chain with correction is sequentially passed through a plurality of correction assemblies, and then the motor is started. The output shaft of the motor drives the second rotating shaft to rotate, the second rotating shaft drives the second gear to rotate, the second gear drives the first gear to rotate, the first gear drives the first rotating shaft to rotate, the first rotating shaft drives the correction sprocket to rotate, so that the correction sprocket drives the chain to move forward, generates tension on the chain, and further opens the dead knot on the chain;

[0026] 2. The conveying sprocket and the deviation correcting wheel are arranged at one end of the workbench. When the chain moves, the chain drives the conveying sprocket to rotate, the conveying sprocket drives the third rotating shaft to rotate, the third rotating shaft drives the third gear to rotate, the third gear drives another third gear to rotate, another third gear drives another third rotating shaft to rotate, another third rotating shaft drives the deviation correcting wheel to rotate, and the deviation correcting wheel presses the chain on the conveying sprocket, thereby reducing the possibility of loosening of the chain in the conveying process;

[0027] 3. A waist-shaped groove is made on the top surface of the workbench, through which the rotating shaft passes. When the alignment sprocket rotates the conveyor chain, the chain is taut due to tight knots. At this time, the chain exerts a thrust on the alignment sprocket, causing the alignment sprocket to drive the rotating shaft to move along the waist-shaped groove. The rotating shaft also drives the connecting rod to move, which in turn drives the moving block to move, keeping the spring in a tensioned state. After the tight knots on the chain are straightened, the chain is relaxed. Under the elastic force of the spring, the moving block moves towards the fixed block, causing the moving block to drive the connecting rod to move. The connecting rod drives the rotating shaft to move, which in turn drives the alignment sprocket to move, thus tensioning the chain and facilitating its rotation to drive the chain. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the tight knot straightening mechanism in the embodiments of this application.

[0029] Figure 2 This is a schematic diagram of the mounting bracket in an embodiment of this application.

[0030] Figure 3 This is a schematic diagram of the alignment component in an embodiment of this application.

[0031] Reference numerals in the attached diagram: 1. Workbench; 11. Correcting wheel; 12. Conveyor sprocket; 13. Shaft 3; 14. Gear 3; 15. Triangular block; 16. Steering wheel; 2. Alignment assembly; 21. Pressure roller; 22. Alignment sprocket; 23. Guide wheel; 24. Shaft 1; 25. Shaft 2; 26. Gear 1; 27. Gear 2; 28. Mounting bracket; 29. ​​Motor; 3. Guide groove; 31. Waist-shaped groove; 32. Mounting plate; 33. Fixing block; 34. Fixing rod; 35. Moving block; 36. Connecting rod; 37. Ring; 38. Spring; 39. Stop block. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0033] This application discloses a tight knot straightening mechanism.

[0034] Reference Figure 1 and 2The application discloses a dead knot correction mechanism, which comprises a workbench 1, the top surface of the workbench 1 is provided with a plurality of correction assemblies 2 for correcting chain dead knots, and the plurality of correction assemblies 2 are distributed in a circular arc on the top surface of the workbench 1. One end of the top surface of the workbench 1 is provided with a deviation correcting wheel 11 and a conveying sprocket 12, the chain passes between the deviation correcting wheel 11 and the conveying sprocket 12 and then passes around the plurality of correction assemblies 2 in sequence, the conveying sprocket 12 is engaged with the chain, and the outer circumferential surface of the deviation correcting wheel 11 abuts against the chain. The top surfaces of the deviation correcting wheel 11 and the conveying sprocket 12 are both provided with rotating shafts 3, the bottom ends of the rotating shafts 3 pass through the bottom surface of the workbench 1, the two rotating shafts 3 are rotatably connected with the workbench 1, the bottom ends of the two rotating shafts 3 are both fixedly provided with gear wheels 3, and the two gear wheels 3 are engaged with each other.

[0035] With reference to Figure 1 and Figure 2 , one end of the top surface of the workbench 1 away from the deviation correcting wheel 11 is provided with a triangular block 15 and a deflection wheel 16, the deflection wheel 16 is rotatably installed on the top surface of the workbench 1, the deflection wheel 16 is located on the side of the triangular block 15 close to the deviation correcting wheel 11, and the output end of the chain passes around the triangular block 15 and the deflection wheel 16 in sequence. The triangular block 15 is fixed on the top surface of the workbench 1, three pointed ends of the triangular block 15 are all provided with rounded corners, and one of the pointed ends of the triangular block 15 points to the outside of the workbench 1.

[0036] With reference to Figure 1 , the correction assembly 2 comprises a pressing wheel 21 arranged on the workbench 1 and correction sprockets 22 arranged on both sides of the pressing wheel 21. Adjacent two correction assemblies 2 are provided with a guide wheel 23, the guide wheel 23 is rotatably installed on the top surface of the workbench 1, the guide wheel 23 is located on the outside between the two correction assemblies 2, and the chain passes around the correction sprockets 22, the pressing wheel 21, the correction sprockets 22 and the guide wheel 23 in sequence.

[0037] With reference to Figure 1 , Figure 2 and Figure 3 , the top surface of the correction sprocket 22 is provided with a rotating shaft 1 24, the top surface of the pressing wheel 21 is provided with a rotating shaft 2 25, the bottom end of the rotating shaft 2 25 passes through the bottom surface of the workbench 1, and the rotating shaft 2 25 is rotatably connected with the workbench 1. The top surface of the workbench 1 is provided with a plurality of pairs of guide grooves 3, the plurality of pairs of guide grooves 3 correspond to the plurality of correction assemblies 2, each pair of guide grooves 3 is located on both sides of the pressing wheel 21, the inner bottom surface of the guide groove 3 is provided with a waist-shaped groove 31, the waist-shaped groove 31 penetrates through the bottom surface of the workbench 1, and the bottom end of the rotating shaft 1 24 passes through the waist-shaped groove 31. The bottom end of the rotating shaft 1 24 is fixedly provided with a gear 1 26, the bottom end of the rotating shaft 2 25 is fixedly provided with a gear 2 27, and the gear 2 27 is engaged with the two gears 1 26 respectively.

[0038] With reference to Figure 1 , Figure 2 and Figure 3The bottom surface of the workbench 1 is fixed with a plurality of mounting plates 32, the plurality of mounting plates 32 correspond to the plurality of correction assemblies 2 respectively, the waist-shaped groove 31 penetrates the mounting plate 32, the rotating shaft one 24 penetrates the mounting plate 32 through the waist-shaped groove 31, the bottom end of the rotating shaft two 25 penetrates the mounting plate 32, and the rotating shaft two 25 is rotationally connected with the mounting plate 32.

[0039] With reference to Figure 2 and Figure 3 The bottom surface of the mounting plate 32 is fixed with a fixed block 33, the side surface of the fixed block 33 is fixed with a fixed rod 34, one end of the fixed rod 34 away from the fixed block 33 is fixed with a stop block 39, the outer circumferential surface of the fixed rod 34 is sleeved with a moving block 35, and the moving block 35 is slidingly connected with the fixed rod 34 in the axial direction of the fixed rod 34. Both ends of the moving block 35 are rotationally installed with connecting rods 36, one end of the connecting rod 36 away from the moving block 35 is fixed with a circular ring 37, the circular ring 37 is sleeved on the outer circumferential surface of the rotating shaft one 24, and the circular ring 37 is rotationally connected with the rotating shaft one 24. The fixed rod 34 is sleeved with a spring 38, one end of the spring 38 is abutted against the side surface of the moving block 35 away from the fixed block 33, and the other end of the spring 38 is abutted against the side surface of the stop block 39 close to the moving block 35.

[0040] With reference to Figure 2 and Figure 3 The bottom surface of the workbench 1 is fixed with a mounting frame 28, the bottom surface of the mounting frame 28 is fixed with a motor 29, and the top end of the output shaft of the motor 29 is fixedly connected with the bottom end of the rotating shaft two 25 located at the end of the workbench 1.

[0041] The implementation principle of the tight knot correction mechanism is that: by starting the motor 29, the output shaft of the motor 29 drives the rotating shaft two 25 to rotate, the rotating shaft two 25 drives the gear two 27 to rotate, the gear two 27 drives the two gear one 26 to rotate, the gear one 26 drives the rotating shaft one 24 to rotate, the rotating shaft one 24 drives the correction sprocket 22 to rotate, the sprocket drives the chain to move forward, and at the same time, the chain also drives the correction sprocket 22 in the plurality of correction assemblies 2 to rotate in the moving process, the correction sprocket 22 drives the rotating shaft one 24 to rotate, the rotating shaft one 24 drives the gear one 26 to rotate, the gear one 26 drives the gear two 27 to rotate, the gear two 27 drives the rotating shaft two 25 to rotate, and the rotating shaft two 25 drives the press wheel 21 to rotate, so that the press wheel 21 presses the chain on the correction sprocket 22 in the rotating process, and the chain is subjected to tension by the plurality of correction assemblies 2 in the conveying process, thereby facilitating the correction of the knot on the chain.

[0042] When the large chain is being adjusted, the chain will be pulled tight, at this time the chain will generate a thrust force to the adjusting sprocket 22, the adjusting sprocket 22 drives the rotating shaft I to move along the waist-shaped groove 31, thereby reducing the possibility of the chain being broken due to the large tension when the adjusting assembly 2 is adjusting the chain. When the rotating shaft I 24 is moving, the rotating shaft I 24 also drives the connecting rod 36 to move, the connecting rod 36 drives the moving block 35 to move away from the fixed block 33, so that the spring 38 is in a compressed state. When the knot adjustment on the chain is completed, the chain is in a relaxed state, the moving block 35 moves towards the fixed block 33 under the elastic force of the spring 38, the moving block 35 drives the connecting rod 36 to move, the connecting rod 36 drives the rotating shaft I 24 to move, the rotating shaft I 24 drives the adjusting sprocket 22 to move, thereby the adjusting sprocket 22 tensions the relaxed chain, and then facilitates the adjusting sprocket 22 to convey the adjusted chain forward when rotating.

[0043] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the structure, shape and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A tight knot straightening mechanism, comprising a worktable (1), characterized in that: The workbench (1) is provided with a plurality of straightening components (2) for straightening chain knots. Each straightening component (2) includes a pressure roller (21) on the workbench (1) and straightening sprockets (22) on both sides of the pressure roller (21). The chain passes through the straightening sprockets (22) and the pressure roller (21) in sequence. The workbench (1) is provided with a drive mechanism for driving the straightening sprockets (22) and the pressure rollers (21) to rotate simultaneously. A rotating shaft (24) is fixed to the bottom surface of the straightening sprockets (22), and a rotating shaft (25) is fixed to the bottom surface of the pressure rollers (21). The top surface of the workbench (1) has a plurality of guide grooves (3), which are opposite to the plurality of straightening components (2). Each pair of guide grooves (3) is located on both sides of the pressure roller (21). The inner bottom surface of the guide groove (3) is provided with a waist-shaped groove (31). The first rotating shaft (24) passes through the waist-shaped groove (31). The bottom surface of the worktable (1) is fixed with multiple mounting plates (32). The multiple mounting plates (32) correspond to multiple alignment components (2). The waist-shaped groove (31) passes through the mounting plate (32). The first rotating shaft (24) passes through the mounting plate (32) through the waist-shaped groove (31). The second rotating shaft (25) passes through the mounting plate (32). The second rotating shaft (25) is rotatably connected to the mounting plate (32). The mounting plate (32) is provided with a tensioning member for tensioning the alignment sprocket (22).

2. The tight knot adjustment mechanism according to claim 1, characterized in that: The bottom surface of the workbench (1) is fixed with a mounting bracket (28). The drive mechanism includes a motor (29) fixed to the bottom surface of the mounting bracket (28). The bottom ends of the first rotating shaft (24) and the second rotating shaft (25) both pass through the bottom surface of the workbench (1). The first rotating shaft (24) and the second rotating shaft (25) are rotatably connected to the workbench (1). The bottom end of the first rotating shaft (24) is provided with a gear (26), and the bottom end of the second rotating shaft (25) is provided with a gear (27). The gear (27) meshes with the two gears (26) respectively. The top end of the output shaft of the motor (29) is fixedly connected to the bottom end of the second rotating shaft (25) located at the end of the workbench (1).

3. The tight knot adjustment mechanism according to claim 2, characterized in that: The top surface of the workbench (1) is provided with a correction wheel (11) and a conveyor sprocket (12). A chain passes between the correction wheel (11) and the conveyor sprocket (12). A rotating shaft (13) is fixedly installed on both the correction wheel (11) and the conveyor sprocket (12). The bottom end of the rotating shaft (13) passes through the bottom surface of the workbench (1). The rotating shaft (13) is rotatably connected to the workbench (1). A gear (14) is fixed at the bottom end of each of the two rotating shafts (13). The two gears (14) mesh with each other.

4. The tight knot adjustment mechanism according to claim 3, characterized in that: A guide wheel (23) is provided between two adjacent alignment components (2), and the guide wheel (23) is located on the outside between the two sets of alignment components (2).

5. The tight knot adjustment mechanism according to claim 4, characterized in that: The tensioning element includes a fixing block (33) fixed to the bottom surface of the mounting plate (32), a fixing rod (34) fixed to the side of the fixing block (33), a stop block (39) fixed to the end face of the fixing rod (34) away from the fixing block (33), a moving block (35) slidably disposed on the fixing rod (34), and a connecting rod (36) rotatably mounted at both ends of the moving block (35), with the connecting rod (36) at the end away from the moving block (35) A ring (37) is fixed and sleeved on the outer circumference of the first rotating shaft (24). The ring (37) is rotatably connected to the first rotating shaft (24). A spring (38) is sleeved on the fixed rod (34). One end of the spring (38) abuts against the side of the moving block (35) away from the fixed block (33), and the other end of the spring (38) abuts against the side of the stop block (39) near the moving block (35).

6. The tight knot adjustment mechanism according to claim 5, characterized in that: A triangular block (15) is provided on the top surface of the workbench (1) away from the conveyor sprocket (12). The tip of the triangular block (15) is rounded, and one of the tips of the triangular block (15) points to the outside of the workbench (1).

7. A tight knot adjustment mechanism according to claim 6, characterized in that: A steering wheel (16) is rotatably provided on the top surface of the workbench (1) away from the conveyor sprocket (12). The steering wheel (16) is located on the side of the triangular block (15) close to the conveyor sprocket (12). The output end of the chain passes around the triangular block (15) and the steering wheel (16) in sequence.

8. The tight knot adjustment mechanism according to claim 1, characterized in that: Multiple sets of the calibration components (2) are arranged in an arc on the top surface of the workbench (1).

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