A saw blade rewinding machine

Abstract

The present application provides a kind of saw blade rewinder, including unwinding assembly and winding assembly, the intermediate transfer assembly is equipped between unwinding assembly and winding assembly, the cutting assembly is equipped between intermediate transfer assembly and winding assembly, intermediate transfer assembly includes conveying wheel group, conveying wheel group includes support, support is equipped with the conveying wheel of being opposite to being arranged at the two sides of saw blade, second servo motor is equipped on conveying wheel, encoder is equipped on conveying wheel, cutting assembly includes cutting knife and cutting block, cutting block is equipped with the knife groove matched with cutting knife, cylinder is equipped on cutting knife, the arc-shaped pressing plate is equipped on the one side of the turntable of winding assembly.The present application provides a kind of saw blade rewinder, by setting second servo motor on conveying wheel, prevent saw blade cutting, the big roll saw blade of unwinding is loose roll and tail fling injury, winding assembly one side is provided with pressing plate and presses the small roll saw blade of winding, prevent the small roll saw blade of winding and tail fling injury, the length of small roll saw blade obtained is more accurate, and safety factor is higher.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of saw blade production equipment, in particular to a saw blade rewinding machine. BACKGROUND

[0002] The production line of the saw blade contains multiple processes, and the semi-finished saw blade is usually wound into a coil shape in order to facilitate the transportation between processes due to the long length of the saw blade. When entering the next process, the coil-shaped saw blade is unwound for processing. Before the saw blade is shipped, the large roll of saw blade needs to be rewound into small saw blade rolls according to certain specifications.

[0003] In the prior art, when rewinding the saw blade, a unwinding roller is mainly used for unwinding, and a winding roller is mainly used for winding. A cutting knife is arranged between the unwinding roller and the winding roller. When the saw blade on the winding roller is wound to a predetermined length, the worker immediately cuts off the saw blade. However, the tightly wound saw blade will have an irregular tail whipping phenomenon after being suddenly cut off. Lightly, the saw blade on the unwinding roller and the winding roller will be loose, and the worker needs to manually tighten again, which increases the work burden. Heavily, the worker will be injured, and there is a safety hazard. Therefore, how to develop a saw blade rewinding equipment with accurate rewinding length and safe and convenient winding is a problem that needs to be solved by the person skilled in the art. SUMMARY

[0004] The present application solves the technical problem that the tightly wound saw blade will have an irregular tail whipping phenomenon after being suddenly cut off in the prior art. Lightly, the saw blade on the unwinding roller and the winding roller will be loose, and the worker needs to manually tighten again, which increases the work burden. Heavily, the worker will be injured, and there is a safety hazard. The present application provides a saw blade rewinding machine.

[0005] The technical solution adopted by the present application to solve the technical problem is a saw blade rewinding machine, which comprises a unwinding assembly and a winding assembly. A rotating disc for unwinding or winding the saw blade is arranged in each of the unwinding assembly and the winding assembly. A first servo motor is arranged on the rotating disc of the winding assembly to drive the rotating disc to rotate. An intermediate conveying assembly is arranged between the unwinding assembly and the winding assembly. A cutting assembly is arranged between the intermediate conveying assembly and the winding assembly. The intermediate conveying assembly comprises at least two groups of conveying wheel sets. Each conveying wheel set comprises a support. Two conveying wheels are arranged on the support and located on both sides of the saw blade. A second servo motor is arranged on at least one of the conveying wheels. An encoder is arranged on one of the conveying wheels. The cutting assembly comprises a cutting knife and a cutting block arranged oppositely. A knife groove matched with the cutting knife is arranged on the cutting block. A cylinder is arranged on the cutting knife to drive the cutting knife to move close to or away from the cutting block. An arc-shaped pressing plate is arranged on one side of the rotating disc of the winding assembly. A cylinder is arranged on the pressing plate to drive the pressing plate to move close to or away from the saw blade roll on the rotating disc.

[0006] The unwinding assembly is used to unwind large roll saw blade, the first servo motor is used to drive the rotation of the rotating disc of the winding assembly, and small roll saw blade with a predetermined length X is wound on the rotating disc, X can be 50 meters, 100 meters, 200 meters, etc.; the conveying wheel set is used to clamp both sides of the saw blade, and one of the conveying wheels is driven to rotate by the second servo motor, the conveying wheel drags the saw blade by friction force, and the saw blade is conveyed to the winding assembly; since the roll diameter changes when the saw blade is unwound and wound, the conveying wheel set is also used to determine the conveying line of the saw blade, so as to ensure that the saw blade passes between the cutting knife and the cutting block; the encoder is arranged on the conveying wheel, and the length of the saw blade passing through the corresponding conveying wheel is counted according to the number of rotations of the conveying wheel; the staff cuts off the saw blade by the cylinder driving the cutting knife after the encoder counts X+Y according to the distance Y between the encoder and the cutting knife, and obtains small roll saw blade with a length of X; the pressing plate is used to press the saw blade roll on the rotating disc of the winding assembly after the cutting knife cuts off the saw blade, so as to prevent the saw blade roll on the rotating disc from loosening.

[0007] Further, in order to realize automatic winding of the saw blade, a controller is further included, and the first servo motor, the second servo motor, the encoder and the cylinder are all connected with the controller in circuit.

[0008] The controller controls the start of the first servo motor and the second servo motor; in addition, after the length of the saw blade passing through the encoder is counted as X+Y, the encoder transmits a signal to the controller, the controller drives the cutting knife and the cylinder on the pressing plate to extend, the cutting knife cuts off the saw blade, and the pressing plate presses the saw blade roll on the rotating disc of the winding assembly to prevent loosening. The staff does not need to stay near the rewinding machine all the time, the length of the cut-off saw blade is accurate, and automatic production is realized.

[0009] Further, in order to facilitate the installation and removal of the saw blade roll on the rotating disc, the rotating disc is provided with a tensioning device for fixing the saw blade roll, the tensioning device includes a fixed shaft, a first tensioning block and a second tensioning block, the fixed shaft is arranged on the upper end face of the rotating disc and is coaxial with the rotating disc, the first tensioning block is provided with a fixed hole matched with the fixed shaft, the second tensioning block is arranged opposite to the first tensioning block, the outer circumferential surface of the first tensioning block and the second tensioning block is arc-shaped, an adjusting mechanism for driving the second tensioning block to approach or move away from the first tensioning block is arranged between the first tensioning block and the second tensioning block, and the outer circumferential surfaces of the first tensioning block and the second tensioning block in the expanded state are arranged on the same cylindrical surface.

[0010] The first and second tightening blocks are used in pairs, and different sizes of the first and second tightening blocks are selected according to different inner diameters of the saw blade roll; the first tightening block is fixed on the rotating disc through the fixing hole matched with the fixing shaft, and the adjusting mechanism is arranged between the first and second tightening blocks; the second tightening block is driven to move close to or away from the first tightening block through the adjusting mechanism; when the second tightening block is driven to move away from the first tightening block by the adjusting mechanism, the first and second tightening blocks tightly press the inner wall surface of the saw blade roll, and the saw blade roll is fixed on the rotating disc; when the second tightening block is driven to move close to the first tightening block by the adjusting mechanism, the first and second tightening blocks loosen the inner wall surface of the saw blade roll, and the saw blade roll can be taken off from the rotating disc.

[0011] Further, the adjusting mechanism comprises a rotating shaft, an adjusting rod and a driving rod; the rotating shaft is rotationally connected with the first tightening block; the adjusting rod is L-shaped; the lower end of the adjusting rod is fixedly connected with the rotating shaft; one end of the driving rod is hingedly connected with the rod body of the adjusting rod, and the other end is hingedly connected with the second tightening block. The adjusting rod is rotationally connected with the first tightening block through the rotating shaft, and the adjusting rod drives the driving rod to move during rotation, and the driving rod drives the second tightening block to move close to or away from the first tightening block.

[0012] Further, a plurality of arc-shaped supporting blocks are uniformly arranged on the outer circumferential surfaces of the first and second tightening blocks.

[0013] Further, a slot for inserting the end of the saw blade is arranged on the first tightening block, and the slot is oriented in the same direction as the rotating direction of the rotating disc. The end of the saw blade is inserted into the slot, and the rotating disc is driven to rotate in the direction opposite to the orientation of the slot, so that the saw blade is wound around the first and second tightening blocks.

[0014] Further, a rotating rod is arranged on the support, the rotating center of the rotating rod is arranged in the horizontal direction, and a pressing wheel for pressing the upper end of the saw blade is arranged on the rotating rod. The pressing wheel is pressed against the upper end of the saw blade through the rotating rod, so that the saw blade can pass between the conveying wheels.

[0015] Further, in order to lubricate the surface of the saw blade, two oiling rollers are arranged on the support on the two sides of the saw blade, the oiling rollers are axially provided with oil inlet channels, the lower end of the oiling roller is provided with a rotating joint in communication with the oil inlet channel, an oil pipe is connected to the rotating joint, an oil tank is arranged below the support, the lower end of the oil pipe extends into the oil tank, an oil pump is arranged at the lower end of the oil pipe, a plurality of oil holes in communication with the oil inlet channel are arranged on the side wall of the oiling roller, and a sponge is sleeved on the oiling roller.

[0016] Further, in order to prevent the saw blade from breaking and hurting people after being cut, rubber blocks matched with the cutting blocks are arranged on the two sides of the cutting knife. The saw blade on the two sides of the cutting knife is pressed by the rubber blocks, so that the saw blade is prevented from breaking and hurting people after being cut.

[0017] Further, the rotary disc cover of the unwinding assembly is provided with a protection frame, and a plurality of protection rollers are arranged on the protection frame in the circumferential direction of the saw blade roll. The protection rollers are rotationally connected to the protection frame, and are used to prevent the saw blade from breaking and hurting people after being cut, and to block and protect.

[0018] The saw blade rewinding machine provided by the application has the advantages that: the intermediate conveying assembly is arranged between the unwinding assembly and the rewinding assembly, the second servo motor is arranged on the conveying wheel in the intermediate conveying assembly, the large roll of unwinding saw blade is prevented from loosening and flinging to hurt people after being cut, the pressing plate is arranged on one side of the rewinding assembly to press the small roll of rewinding saw blade, the small roll of rewinding saw blade is prevented from loosening and flinging to hurt people, the staff cuts the saw blade by the cutting knife driven by the air cylinder according to the encoder counting, the length of the small roll of saw blade obtained is more accurate, and the safety factor is higher. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described below in combination with the drawings and embodiments.

[0020] Figure 1 is a structural schematic diagram of the best embodiment of the application;

[0021] Figure 2 is a structural schematic diagram of the unwinding assembly;

[0022] Figure 3 is a structural schematic diagram of the intermediate conveying assembly and the cutting assembly;

[0023] Figure 4 is a structural schematic diagram of the rewinding assembly.

[0024] In the drawings: 1, rotary disc, 2, support, 3, conveying wheel, 4, encoder, 5, cutting knife, 6, cutting block, 61, knife groove, 7, air cylinder, 8, pressing plate, 9, first tensioning block, 91, insertion slot, 10, second tensioning block, 11, fixed shaft, 12, rotating shaft, 13, adjusting rod, 14, driving rod, 15, supporting block, 16, rotating rod, 17, pressing wheel, 18, oiling roller, 19, oil pipe, 20, oil drum, 21, rubber block, 22, protection frame, 23, protection roller. EMBODIMENT

[0025] The application will be described in detail below in combination with the drawings. The drawings are simplified schematic diagrams, and only schematically illustrate the basic structure of the application, and thus only show the components related to the application.

[0026] As Figures 1-4As shown, the saw blade rewinding machine of the present application comprises a unwinding assembly and a winding assembly, the unwinding assembly and the winding assembly are both provided with a rotating disc 1 for unwinding or winding the saw blade, the rotating disc 1 of the winding assembly is provided with a first servo motor for driving the rotating disc 1 to rotate, the unwinding assembly and the winding assembly are provided with an intermediate conveying assembly, the intermediate conveying assembly and the winding assembly are provided with a cutting assembly, the intermediate conveying assembly comprises at least two groups of conveying wheel sets, the conveying wheel set comprises a support 2, the support 2 is provided with two conveying wheels 3 arranged on both sides of the saw blade, at least one of the conveying wheels 3 is provided with a second servo motor, one of the conveying wheels 3 is provided with an encoder 4, the cutting assembly comprises a cutting knife 5 and a cutting block 6 arranged oppositely, the cutting block 6 is provided with a knife groove 61 matched with the cutting knife 5, the cutting knife 5 is provided with a cylinder 7 driving the cutting knife 5 to approach or move away from the cutting block 6, one side of the rotating disc 1 of the winding assembly is provided with an arc-shaped pressing plate 8, the pressing plate 8 is provided with a cylinder 7 driving the pressing plate 8 to approach or move away from the saw blade roll on the rotating disc 1.

[0027] Further comprising a controller, the first servo motor, the second servo motor, the encoder 4 and the cylinder 7 are all connected with the controller in circuit.

[0028] The rotating disc 1 is provided with a tensioning device for fixing the saw blade roll, the tensioning device comprises a fixed shaft 11, a first tensioning block 9 and a second tensioning block 10, the fixed shaft 11 is coaxially arranged on the upper end surface of the rotating disc 1, the first tensioning block 9 is provided with a fixed hole matched with the fixed shaft 11, the second tensioning block 10 is arranged opposite to the first tensioning block 9, the outer circumferential surface of the first tensioning block 9 and the second tensioning block 10 is arc-shaped, the first tensioning block 9 and the second tensioning block 10 are provided with an adjusting mechanism for driving the second tensioning block 10 to approach or move away from the first tensioning block 9, the outer circumferential surface of the first tensioning block 9 and the second tensioning block 10 in the state of being separated is arranged on the same cylindrical surface.

[0029] The adjusting mechanism comprises a rotating shaft 12, an adjusting rod 13 and a driving rod 14, the rotating shaft 12 is rotatably connected with the first tensioning block 9, the adjusting rod 13 is L-shaped, the lower end of the adjusting rod 13 is fixedly connected with the rotating shaft 12, one end of the driving rod 14 is hingedly connected with the rod body of the adjusting rod 13, and the other end is hingedly connected with the second tensioning block 10.

[0030] A plurality of arc-shaped supporting blocks 15 are uniformly arranged on the outer circumferential surface of the first tensioning block 9 and the second tensioning block 10.

[0031] The first tensioning block 9 is provided with a slot 91 for inserting the end of the saw blade, the slot 91 is directed in the same direction as the rotating direction of the rotating disc 1.

[0032] The support 2 is provided with a rotating rod 16, the rotating center of the rotating rod 16 is arranged along the horizontal direction, and the rotating rod 16 is provided with a pressing wheel 17 for pressing the upper end of the saw blade.

[0033] The support 2 is provided with two oiling rollers 18 arranged on the two sides of the saw blade, the oiling rollers 18 are provided with oil inlet channels along the axial direction, the lower end of the oiling rollers 18 is provided with a rotating joint in communication with the oil inlet channels, the rotating joint is connected with an oil pipe 19, the support 2 is provided below with an oil tank 20, the lower end of the oil pipe 19 extends into the oil tank 20, the lower end of the oil pipe 19 is provided with an oil pump, the side wall of the oiling roller 18 is provided with a plurality of oil holes in communication with the oil inlet channels, and the oiling roller 18 is sleeved with a sponge.

[0034] The cutting knife 5 is provided with rubber blocks 21 matched with the cutting blocks 6 on the two sides.

[0035] The outer cover of the rotating disc 1 of the unwinding assembly is provided with a protection frame 22, and the protection frame 22 is provided with a plurality of protection rollers 23 arranged along the circumferential direction of the saw blade roll.

[0036] Working process:

[0037] A large roll of saw blade is placed on the rotating disc 1 of the unwinding assembly, and the first tensioning block 9 and the second tensioning block 10 on the rotating disc 1 of the unwinding assembly and the winding assembly are stretched apart through the adjusting mechanism, the first tensioning block 9 and the second tensioning block 10 on the unwinding assembly fix the large roll of saw blade, and the first tensioning block 9 and the second tensioning block 10 on the winding assembly are stretched apart and wait for winding; the staff pulls the end of the saw blade to the direction of the conveying wheel 3, when the end of the saw blade passes through the conveying wheel 3 provided with the encoder 4, the second servo motor on the conveying wheel 3 starts to drive the large roll of saw blade to unwind, and the encoder 4 starts to count the unwinding length; when the saw blade passes through the cutting knife 5 and the oiling roller 18 and reaches the rotating disc 1 of the winding assembly, the staff inserts the end of the saw blade into the slot 91 of the first tensioning block 9, and the first servo motor starts to drive the rotating disc 1 to rotate in the direction opposite to the direction of the slot 91, so that the saw blade is wound around the first tensioning block 9 and the second tensioning block 10.

[0038] The distance between the encoder 4 and the cutting knife 5 is Y, and the length of the small roll of rewound saw blade is X, after the saw blade passing through the encoder 4 is counted for a length of X+Y, the encoder 4 transmits a signal to the controller, the controller drives the cutting knife 5 and the cylinder 7 on the pressing plate 8 to extend, the cutting knife 5 cuts off the saw blade, the rubber blocks 21 on the two sides of the cutting knife 5 press the saw blade to prevent the saw blade from swinging, and the pressing plate 8 presses the outer side of the small roll of rewound saw blade to prevent the small roll of rewound saw blade from loosening.

[0039] Directions and references (e.g., up, down, left, right, etc.) in the present disclosure can be used merely to aid in describing the features in the drawings. Thus, the following detailed description is not to be taken in a limiting sense, and the scope of the subject matter sought to be protected is defined only by the claims and equivalents thereof.

[0040] The above-described embodiments of the application are merely possible examples of implementation, and various modifications and alterations can be made by those skilled in the art without departing from the scope of the application. The scope of the application is not limited to the contents of the specification, and must be determined by the scope of the claims.

Claims

1. A saw blade rewinding machine, characterized in that: The system includes an unwinding assembly and a rewinding assembly. Both the unwinding and rewinding assemblies have a turntable (1) for unwinding or rewinding the saw blade. The turntable (1) of the rewinding assembly has a first servo motor for driving the turntable (1) to rotate. An intermediate conveying assembly is located between the unwinding and rewinding assemblies. A cutting assembly is located between the intermediate conveying assembly and the rewinding assembly. The intermediate conveying assembly includes at least two sets of conveyor wheels. Each set of conveyor wheels includes a bracket (2). The bracket (2) has two conveyor wheels (3) positioned opposite each other on both sides of the saw blade. At least one conveyor wheel (3) has a second servo motor, and one of the conveyor wheels (3) has an encoder (4). The cutting assembly includes a cutting blade (5) and a cutting block (6) positioned opposite each other. The cutting block (6) has a groove (61) that mates with the cutting blade (5). The cutting blade (5) has a drive mechanism for the cutting blade (5) to... The cylinder (7) is close to or far from the cutting block (6). The turntable (1) of the winding assembly is provided with an arc-shaped pressure plate (8). The pressure plate (8) is provided with a cylinder (7) that drives the pressure plate (8) to approach or move away from the saw blade roll on the turntable (1). The bracket (2) is provided with two oiling rollers (18) located opposite each other on both sides of the saw blade. The oiling roller (18) is provided with an oil inlet channel along the axial direction. The lower end of the oiling roller (18) is provided with a rotary joint that communicates with the oil inlet channel. The rotary joint is connected with an oil pipe (19). The bracket (2) is provided with an oil tank (20). The lower end of the oil pipe (19) extends into the oil tank (20). The lower end of the oil pipe (19) is provided with an oil pump. The side wall of the oiling roller (18) is provided with several oil holes that communicate with the oil inlet channel. The oiling roller (18) is covered with a sponge. The cutting blade (5) is provided with rubber blocks (21) that cooperate with the cutting block (6) on both sides.

2. The saw blade rewinding machine as described in claim 1, characterized in that: It also includes a controller, and the first servo motor, the second servo motor, the encoder (4) and the cylinder (7) are all connected to the controller circuit.

3. A saw blade rewinding machine as described in claim 1 or 2, characterized in that: The turntable (1) is provided with a tensioning device for fixing the saw blade roll. The tensioning device includes a fixed shaft (11), a first tensioning block (9) and a second tensioning block (10). The fixed shaft (11) is located on the upper end face of the turntable (1) and is coaxial with the turntable (1). The first tensioning block (9) is provided with a fixing hole that cooperates with the fixed shaft (11). The second tensioning block (10) is arranged opposite to the first tensioning block (9). The outer circumferential surfaces of the first tensioning block (9) and the second tensioning block (10) are arc-shaped. An adjustment mechanism is provided between the first tensioning block (9) and the second tensioning block (10) for driving the second tensioning block (10) to move closer to or away from the first tensioning block (9). When the first tensioning block (9) and the second tensioning block (10) are in the open state, the outer circumferential surfaces of the first tensioning block (9) and the second tensioning block (10) are located on the same cylindrical surface.

4. A saw blade rewinding machine as described in claim 3, characterized in that: The adjustment mechanism includes a rotating shaft (12), an adjusting rod (13), and a driving rod (14). The rotating shaft (12) is rotatably connected to the first tensioning block (9). The adjusting rod (13) is L-shaped. The lower end of the adjusting rod (13) is fixedly connected to the rotating shaft (12). One end of the driving rod (14) is hinged to the body of the adjusting rod (13), and the other end is hinged to the second tensioning block (10).

5. A saw blade rewinding machine as described in claim 4, characterized in that: Multiple arc-shaped support blocks (15) are evenly provided on the outer peripheral surfaces of the first tensioning block (9) and the second tensioning block (10).

6. A saw blade rewinding machine as described in claim 4, characterized in that: The first tensioning block (9) is provided with a slot (91) for inserting the end of the saw blade, and the slot (91) is oriented in the same direction as the rotation of the turntable (1).

7. A saw blade rewinding machine as described in claim 1, characterized in that: The bracket (2) is provided with a rotating rod (16), the rotation center of the rotating rod (16) is set in the horizontal direction, and the rotating rod (16) is provided with a pressure roller (17) for pressing down the upper end of the saw blade.

8. A saw blade rewinding machine as described in claim 1, characterized in that: The turntable (1) of the unwinding assembly is covered with a protective frame (22), and the protective frame (22) is provided with a plurality of protective rollers (23) arranged along the circumference of the saw blade roll.

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