CN116550904A - Automatic hook bending production line and method for manufacturing hooks by using same - Google Patents

Abstract

The invention relates to an automatic hook bending continuous production line and a method for manufacturing hooks by using the same, the automatic hook bending continuous production line comprises a frame body mainly used for installing a feeding device, a bending device fixedly arranged on the frame body, a guide sliding table for receiving bars transmitted by the feeding device, a first bending mechanism positioned in the extending direction of the tail end of the guide sliding table, a second bending mechanism opposite to the first bending mechanism, wherein the two bending mechanisms share a set of power sources, obviously different from the prior art, the formed bending part is not separated from a die in the process from the first bending to the second bending, the parallelism of the two ends is ensured, the position positioning of a workpiece before the second bending is realized by virtue of the displacement of a forming rotary die, the position positioning is equivalent to the length standard of the second bending, the length consistency is ensured, the second bending action is utilized to realize the demolding from the first bending, and the integral demolding difficulty is greatly reduced.

Description

Automatic hook bending production line and method for manufacturing hooks by using same

Technical Field

The invention belongs to the technical field of hooks made of bars, and particularly relates to an automatic bending continuous production line of hooks and a method for manufacturing hooks by using the production line.

Background

The seventh drawing shows a hook 003 widely used for hanging a birdcage and a lamp, the hook 003 is formed by bending a bar material of an elongated rod, is usually round steel, and has two ends shaped like a pigtail, so the hook is also called a pigtail hook, when in use, one end is sleeved outside a vertical fixing rod in a surrounding manner at an opening position, the other end is used for hanging the birdcage and the lamp, and the hook can provide balanced and stable support under the gravity after being hung;

the existing processing of the hook 003 generally uses a bending machine for bending spiral reinforcing steel bars, such as the name of the authorized bulletin No. CN103170556B, and similar equipment is manually operated to process, one end of a bar needs to be pushed into the bending machine to be bent and then taken out, and the other end of the bar is put into the bending machine to be bent in the same way, so that the processing mode has two defects in terms of processing quality: firstly, the parallelism of the bending parts at the two ends is mastered by the manipulation of operators, and the parallelism cannot be reliably ensured; secondly, the bending is completed by means of limiting contact between the end part of the front end of the bar and the die in the second bending, and the mode is equal to that the machining error of the length of the cut is accumulated on the total length of the hook; the two defects are not easy to embody in places where hooks are used singly or are not in pursuit of orderly arrangement, but uneven hooks are shown when the integrity is higher, so that the attractiveness is affected;

the continuous processing production line limiting the difficulty in manufacturing the automatic hooks is mainly characterized in that the length of a bar is always shortened along with the bending process, the bending part is in a spiral shape, the height of an unbent part of the bar is always changed, and in addition, the demolding is not easy to overcome because the bending directions of the two ends are opposite, therefore, research and development staff of our company design a set of device capable of solving the defects according to the characteristics of products.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an automatic continuous production line for bending hooks, in which the structural and functional characteristics of the bending device can overcome the aforementioned drawbacks of the prior art.

The invention aims at realizing the following technical scheme: the automatic hook bending continuous production line comprises a frame body mainly used for installing a feeding device, and a bending device fixedly installed on one side of the frame body, wherein the bending device comprises a guide sliding table for receiving bars transmitted by the feeding device, a first bending mechanism positioned in the extending direction of the tail end of the guide sliding table, a second bending mechanism opposite to the first bending mechanism and positioned on one side of the guide sliding table, the two bending mechanisms share a set of power source, and a sliding table is arranged between the first bending mechanism and the second bending mechanism; the first bending mechanism comprises a first molding rotary die and a first spiral line guide die which is rotatably fixed on the sliding table, and the second bending mechanism comprises a second molding rotary die and a second spiral line guide die which is rotatably fixed on the sliding table; the starting positions of the first molding rotary die and the second molding rotary die are respectively fixed with a bayonet lock, wherein the bayonet lock of the first molding rotary die is provided with a limiting part;

the first bending mechanism is arranged in the normal forward direction, the second bending mechanism is arranged in the reverse direction, a workpiece is formed after one end of the bar is machined, the first forming rotary die can be arranged to slide outwards, meanwhile, the second forming rotary die can be lifted upwards, a neutral space is formed in the middle of the second forming rotary die after the lifting, the workpiece can pass through the second forming rotary die, the two spiral line guide films are arranged on the same sliding table, the workpiece is pushed to a position between the second forming rotary die and the second spiral line guide die by utilizing the first spiral line guide die through the movement of the sliding table, the concave spiral surface of the second spiral line guide die is tightly attached to the bar at the initial position of the second forming rotary die through the movement of the sliding table, a power source is started, the second forming rotary die is rotated, and machining of the other end of the workpiece is completed.

Preferably, the first molding rotary die is designed into an upper part and a lower part, the lower part is a sliding base capable of sliding in a translation way, the upper part is a turnover seat hinged with the sliding base, the rotary die is rotatably sleeved on the turnover seat, the bending device further comprises a power mechanism and a sliding component, the power mechanism and the sliding component are matched with the sliding action of the first molding rotary die, the power mechanism is an air cylinder component, and the piston head of the power mechanism is fixedly connected with the sliding base. Because the bending part needs to form a spiral shape, the bar needs to enter the first forming rotary die in an inclined way, and therefore after the bar is bent, one section of the bar straight line is inclined upwards, and therefore the first forming rotary die is designed into an upper part and a lower part and can slide outwards, and one section of the bar straight line can conveniently and smoothly enter the second forming rotary die.

Preferably, an elastic band is connected between the overturning seat and the sliding seat.

Preferably, the power source comprises a driving motor, a first output end arranged on an output shaft of the driving motor and a second output end driven by a transmission mechanism to obtain power; the shaft release mechanism is arranged below the second output end, the end part of the shaft matched with the second output end is provided with a spline, the shaft release mechanism is fixedly connected with the shaft in a detachable mode, and the inner top of the rotary die is provided with a key groove matched with the spline. The shaft release mechanism takes the air cylinder as power, is connected with the shaft end, and then moves up and down to be connected with the rotary die, so that the rotary die is not influenced by the fact that the rotary die is just separated from the power source, namely, when the shaft is bent for the second time, the shaft is in a release state, and therefore the first forming rotary die cannot rotate.

Preferably, the sliding component is fixedly provided with a stop block, and the stop block part covers and is slightly higher than the disc surface of the rotary die.

Preferably, the side of slip table is equipped with lifting unit, and lifting unit includes the elevator motor of fixing in the lower extreme, lead screw driving medium and with second shaping rotary die fixed connection's horizontal mount pad, the free end of second shaping rotary die has downwardly extending one section spline, and first output upper portion is connected with the shaft coupling, and the free end of second shaping rotary die is in the decline in-process with elevator motor's drive and is engaged with the shaft coupling, in-process that rises, separates with the shaft coupling.

Preferably, elastic resetting pieces are arranged in the first spiral line guiding die and the second spiral line guiding die and at the connecting positions of the first spiral line guiding die and the second spiral line guiding die and the sliding table.

Preferably, a pick-up mechanical arm is fixedly arranged on the sliding table.

Preferably, an auxiliary lifting assembly is arranged in the guide sliding table.

Aiming at the defects existing in the prior art, the invention aims to provide a hook manufacturing method using a hook automatic bending continuous production line;

the invention aims at realizing the following technical scheme, which comprises the following steps:

s1, a bar material enters a guide sliding table along with a feeding device and slides to a limit part along with the inclination of the sliding table;

s2, starting the sliding table to move, enabling the inner concave surface of the first spiral line guide die to be clung to the bar, starting the driving motor again, enabling the first forming rotary die to rotate anticlockwise, enabling the auxiliary lifting assembly to upwards assist in lifting, and enabling one end of the bar to form a semi-finished workpiece in a surrounding mode on the periphery of the first forming rotary die;

s3, starting a lifting motor to enable a horizontal mounting seat to drive a second molding rotating die to move upwards until a neutral position appears, starting a sliding table to enable a first spiral line guiding die to push a workpiece to pass through the neutral position, keeping the workpiece at the outer diameter of the first spiral line guiding die, starting a shaft disengaging mechanism to disengage a shaft, restarting a cylinder assembly to enable the first molding rotating die to slide outwards to a set position, keeping pressure steady, starting the lifting motor, enabling the horizontal mounting seat to move downwards until the second molding rotating die is connected with a coupler, at the moment, enabling a bayonet lock on the second molding rotating die to be exactly clamped at the outer side of the workpiece, and starting the sliding table to move the second spiral line guiding die until a spiral groove of the second spiral line guiding die is fully contacted with the workpiece;

s4, starting a driving motor, wherein the other end of the workpiece is formed around the periphery of the second forming rotary die, the traction of the workpiece enables the overturning seat to overturn, meanwhile, the cylinder assembly is out of pressure, the downward force of the workpiece forces the first forming rotary die to further retreat, one bending part of the workpiece is separated, and the other bending part of the workpiece is manufactured;

s5, starting the pick-up mechanical arm to clamp the workpiece, starting the lifting motor to ascend, taking the workpiece out smoothly, resetting the turning seat, the first spiral line guide die and the second spiral line guide die under the set elastic force, and returning other action parts to the initial positions under the corresponding power sources.

In summary, compared with the prior art, the invention has the following advantages:

the bending device is divided into two opposite bending mechanisms, the two bending mechanisms share a set of power source, a sliding table is arranged between the two bending mechanisms, and two spiral line guide dies matched with the two bending mechanisms are respectively arranged at corresponding positions of the sliding table; the coordination between the forming rotary die and the spiral line guide die in the bending mechanism is realized by moving the sliding table;

one of the two bending mechanisms is arranged in a normal forward direction, the other one is arranged in a reverse direction, a workpiece is formed after one end of the bar is processed, the forming rotary die arranged in the forward direction is arranged to be capable of sliding outwards, meanwhile, the forming rotary die arranged in the reverse direction can be lifted upwards, a neutral space is formed in the middle of the forming rotary die after lifting to enable the workpiece to pass through, the workpiece is pushed to a position between the other forming rotary die and the spiral line guide die by utilizing the spiral line guide die through the movement of the sliding table, so that the bending processing of the two ends is realized.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of a power source;

FIG. 3 is a schematic view of the bar entering the bending device;

FIG. 4 is a schematic view of the structure of one end after bending is completed and transferred to a second molding rotary die;

FIG. 5 is a schematic view of the structure of the second molding rotary die (with the frame and a part of the lifting assembly hidden) during the rotary operation;

FIG. 6 is a schematic view of the tape pick-up after the hooks have been bent (with the frame and part of the lifting assembly hidden);

fig. 7 is a schematic structural view of the hanger.

The marks in the figure:

the device comprises a frame body 1, an auxiliary lifting assembly 10, rollers 11, a rotating arm 12, a power cylinder 13, a bending device 2, a bar 001, a workpiece 002, a hook 003, a guide sliding table 21, a first bending mechanism 22, a second bending mechanism 23, a first forming rotary die 24, a sliding base 241, a turnover seat 242, a first spiral line guide die 25, a second forming rotary die 26, a second spiral line guide die 27, a clamping pin 01, a limiting part 02, an elastic belt 03, a shaft 04, a power source 3, a driving motor 31, a first output end 32, a transmission mechanism 33, a second output end 34, a cylinder assembly 4, a shaft disengaging mechanism 5, a sliding assembly 6, a stop block 61, a sliding table 7, a lifting assembly 8, a lifting motor 81, a screw rod transmission 82, a horizontal installation seat 83 and a picking mechanical arm 9.

Detailed Description

The invention is further described below with reference to embodiments shown in the drawings in which:

example 1

The invention provides an automatic hook bending continuous production line, which comprises a frame body 1 mainly used for installing a feeding device, a bending device 2 fixedly installed on one side of the frame body 1, wherein the bending device 2 comprises a guide sliding table 21 for receiving a bar 001 transmitted by the feeding device, a first bending mechanism 22 positioned in the extending direction of the tail end of the guide sliding table 21, a second bending mechanism 23 opposite to the first bending mechanism 22 and positioned on one side of the guide sliding table 21, the two bending mechanisms share a set of power source 3, and a sliding table 7 arranged between the first bending mechanism 22 and the second bending mechanism 23; the first bending mechanism comprises a first molding rotary die 24 and a first spiral wire guide die 25 rotatably fixed on the sliding table 7, and the second bending mechanism comprises a second molding rotary die 26 and a second spiral wire guide die 27 rotatably fixed on the sliding table 7; the starting positions of the first molding rotary die 24 and the second molding rotary die 26 are provided with a clamping pin 01, wherein the clamping pin 01 of the first molding rotary die 24 is provided with a limiting part 02;

the first bending mechanism 22 is arranged in a normal forward direction, namely, when the bar 001 is bent for the first time, the initial position is downward, the whole moves upwards along with the screw pitch of the spiral line, the second bending mechanism 23 is arranged in a reverse direction, namely, when the other end of the bar 001 is bent, the initial position is upward, the whole of the bar 001 moves downwards along with the screw pitch of the spiral line, so that after the two ends are bent, the bar 001 basically returns to the initial height position, and related components can be arranged more compactly in space; for convenience of description, the bar 001 which has been processed or has been partially processed will be hereinafter referred to as a workpiece 002, in order to facilitate rapid transfer of the workpiece 002 into the second bending mechanism 23 after the completion of the first bending, the first forming rotary die 24 is set to be slidable outward, while the second forming rotary die 26 is lifted upward, a space is formed in the middle after the lifting for the workpiece 002 to pass through, the two spiral wire guide films are mounted on the same slide table 7, and the distance between the forming rotary die and the spiral wire guide film is controlled by the movement of the slide table 7, so that the purpose of engagement or separation of the spiral wire guide film and the bar is achieved. After the first bending, the whole design is that the workpiece 002 slides outwards to the set position along with the first forming rotary die 24, the second forming rotary die 26 is lifted upwards, the sliding table 7 moves, the first spiral guiding die 25 is utilized to push the workpiece to the position between the second forming rotary die 26 and the second spiral guiding die 27, the concave spiral surface of the second spiral guiding die 27 and the bar are tightly attached to the initial position of the second forming rotary die 26 through the movement of the sliding table 7, the power source 3 is started, the second forming rotary die 26 rotates, at this time, the workpiece 002 moves along the stressed direction under the rotation of the rotary die, the whole workpiece 002 also moves downwards under the guide of the second spiral guiding die 27, therefore, the first forming rotary die 24 needs to be designed into an upper part and a lower part, the lower part is a sliding base 241, the sliding base 241 can slide out in a translational manner, the upper part of the sliding base 241 is provided with a turnover seat 242, the turnover seat 242 is hinged with the sliding base 241, the rotary die 243 is sleeved on the turnover seat 242, meanwhile, a corresponding power mechanism and a sliding component 6 are required to be arranged for the sliding action of the first molding rotary die 24, the power mechanism is preferably an air cylinder component 4, the piston head of the power mechanism is fixedly connected with the sliding base 241, before the workpiece is bent for the second time, the air cylinder component 4 pulls the first molding rotary die 24 to a set position, the turnover seat 242 is overturned due to the pulling force when the workpiece is bent, at this time, the air cylinder component 4 needs to be in a pressure maintaining state to ensure that the turnover seat 242 overturns relative to the sliding base 241, when the turnover seat 242 generates an inclination angle, the air cylinder component 4 needs to be switched from the pressure maintaining state to a non-pressure state, namely the sliding base 241 needs to obtain a free moving space, because the workpiece 002 is integrally moved and downwards, it is necessary to provide a receiving space for the workpiece 002, so that the turnover seat 242 is quickly turned over and the curved portion of the workpiece 002 applies a downward force to the rotary die 243 to further move the slide base 241 toward the cylinder assembly 4 side, so that the workpiece 002 is completely separated from the first bending mechanism 22 and separated from the second bending mechanism 23, and only the second molding rotary die 26 needs to be lifted upward. Before the second bending, the workpiece 002 is not separated from the rotating mold 243, so that the parallelism of the workpiece 002 is ensured during the second bending, and the sliding base 241 is driven by the cylinder assembly 4 to determine the position during the second bending, so that the overall length of the workpiece 002 is also ensured. (the cumulative error of processing is transferred to the bending part)

In order to enable the turnover seat 242 to reset by itself after turnover, an elastic band 03 is connected between the turnover seat 242 and the sliding seat 241;

as shown in fig. 2, the power source 3 includes a driving motor 31, a first output end 32 provided on an output shaft of the driving motor 31, and a second output end 34 driven by a transmission mechanism 33 to obtain power; in order to meet the requirement of outward sliding of the first molding rotary die 24, a shaft release mechanism 5 is arranged below the second output end 34, the end of a shaft 04 matched with the second output end 34 is provided with a spline, the shaft release mechanism 5 is in detachable fixed connection with the shaft 04, a key slot matched with the spline is arranged at the inner top of the rotary die 243, when the first molding rotary die 24 needs to slide outwards, the shaft release mechanism 5 pulls down the shaft 04 to release from the first molding rotary die 24, the first molding rotary die 24 can move outwards, when the first molding rotary die 24 needs to return, the shaft release mechanism 5 pushes back the shaft, here, in order to smoothly and in place in the process of pushing back the shaft, a stop 61 is fixedly arranged on the sliding component 6, after the first molding rotary die 24 returns, the stop 61 partially covers and is slightly higher than the disc surface of the rotary die 243, so that when the shaft release mechanism 5 pushes the shaft into the rotary die 243, the stop 61 plays a role of limiting the rotary die 243, and a driving motor 31 needs to be a servo motor or a system capable of matching an inductor so as to detect and adjust the position of the first molding rotary die 24 and the correct position of the first molding pin 01.

In order to realize the lifting of the second molding rotary die 26, a lifting assembly 8 is arranged at the side edge of the sliding table 7, a fixed part of the lifting assembly 8 is fixedly connected with a fixed structure for installing a driving motor 31, the lifting assembly 8 comprises a lifting motor 81 fixed at the lower end, a screw rod transmission member 82 and a horizontal installation seat 83 fixedly connected with the second molding rotary die 26, the free end of the second molding rotary die 26 is provided with a section of spline extending downwards, the first output end 32 is connected with a coupler, the free end of the second molding rotary die 26 is connected with the coupler in the descending process along with the driving of the lifting motor 81, so that rotating power is obtained, and the lifting assembly is separated from the coupler in the ascending process, so that a workpiece 002 can pass through.

Before the bar 001 or the workpiece 002 is bent, the corresponding first spiral wire guiding mold 25 or the second spiral wire guiding mold 27 capable of rotating by itself should be limited in a proper position, that is, the inner concave surface of the spiral wire is sufficiently contacted with the surface of the bar 001 or the workpiece 002, for this purpose, torsion springs or coil springs are provided at the connection portions inside the first spiral wire guiding mold 25 and the second spiral wire guiding mold 27 and with the slide table 7 to be in or return to a proper position in a natural state and after the external force is removed,

as a continuous production line, after the processing of the workpiece 002 is completed, a pickup mechanical arm 9 is fixedly arranged on the sliding table 7 for convenient pickup;

since the bar 001 is still in a longer state before the first bending, an auxiliary lifting assembly 10 is arranged in the guiding sliding table 21, and the auxiliary lifting assembly 10 comprises a roller 11 which is in contact with the surface of the bar 001 for lifting, a rotating arm 12 for installing the roller 11 and connecting a driving shaft and a power cylinder 13, when the first bending is performed, the power cylinder 13 synchronously acts, and the roller 11 lifts the bar 001 to prevent the excessive bending deflection of the tail end from being separated from the guiding die.

With reference to fig. 1-7, the method for manufacturing the hook 003 comprises the following steps:

s1, a bar 001 enters a guide sliding table 21 along with a feeding device and slides to a limit part 02 along with the inclination of the sliding table 21; see fig. 3;

s2, starting movement of the sliding table 7, enabling the inner concave surface of the first spiral line guide die 25 to be clung to the bar 001, starting the driving motor 31 again, enabling the first forming rotary die 24 to rotate anticlockwise, enabling the auxiliary lifting assembly 10 to upwards assist in lifting, and enabling one end of the bar 001 to form a semi-finished workpiece 002 around the periphery of the first forming rotary die 24;

s3, starting a lifting motor 81, enabling a horizontal mounting seat 83 to drive a second molding rotating die 26 to move upwards until a neutral position appears, starting a sliding table 7, enabling a first spiral line guiding die 25 to push a workpiece 002 to pass through the neutral position, keeping the workpiece 002 at the outer diameter position of the first spiral line guiding die 25, enabling a shaft 04 to be separated by a starting shaft separating mechanism 5, enabling a cylinder assembly 4 to slide the first molding rotating die 24 outwards to a set position, keeping pressure stably and fixedly, starting the lifting motor 81, enabling the horizontal mounting seat 83 to move downwards until the second molding rotating die 26 is engaged with a coupler, enabling a bayonet lock 01 on the second molding rotating die 26 to be just clamped on the outer side of the workpiece 002, and enabling the sliding table 7 to move the second spiral line guiding die 27 until a spiral groove of the second spiral line guiding die is fully contacted with the workpiece 002;

s4, starting the driving motor 31, wherein the other end of the workpiece 002 is formed around the periphery of the second forming rotary die 26, simultaneously, the pulling of the workpiece 002 enables the overturning seat 242 to overturn, simultaneously, the cylinder assembly 4 is in decompression, the downward force of the workpiece 002 forces the first forming rotary die 24 to further retreat, one bending part of the workpiece 002 is completely separated, and the other bending part of the workpiece 002 is also completely manufactured;

s5, starting the pick-up mechanical arm 9 to clamp the workpiece 002, starting the lifting motor 81 to rise, taking the workpiece 002 out smoothly, resetting the turning seat (242), the first spiral line guide die (25) and the second spiral line guide die (27) under the set elastic force, and returning other action parts to the initial positions under the corresponding power sources.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The automatic hook bending continuous production line comprises a frame body (1) mainly used for installing a feeding device, and a bending device (2) fixedly installed on one side of the frame body (1), and is characterized in that the bending device (2) comprises a guide sliding table (21) used for receiving a bar (001) transmitted by the feeding device, a first bending mechanism (22) positioned in the extending direction of the tail end of the guide sliding table (21), a second bending mechanism (23) opposite to the first bending mechanism (22) and positioned on one side of the guide sliding table (21), the two bending mechanisms share a set of power source (3), and a sliding table (7) is arranged between the first bending mechanism (22) and the second bending mechanism (23); the first bending mechanism comprises a first molding rotary die (24) and a first spiral line guide die (25) which is rotatably fixed on the sliding table (7), and the second bending mechanism comprises a second molding rotary die (26) and a second spiral line guide die (27) which is rotatably fixed on the sliding table (7); the starting positions of the first molding rotary die (24) and the second molding rotary die (26) are respectively fixed with a clamping pin (01), wherein the clamping pins (01) of the first molding rotary die (24) are provided with limiting parts (02);

the first bending mechanism (22) is arranged in a normal forward direction, the second bending mechanism (23) is arranged in a reverse direction, a workpiece (002) is formed after one end of the bar (001) is machined, the first forming rotary die (24) is arranged to be capable of sliding outwards, meanwhile, the second forming rotary die (26) can be lifted upwards, a neutral space is formed in the middle of the lifting process for the workpiece (002) to pass through, the two spiral line guide films are arranged on the same sliding table (7), the workpiece is pushed to a position between the second forming rotary die (26) and the second spiral line guide die (27) by using the first spiral line guide die (25) through the movement of the sliding table (7), the concave spiral surface of the second spiral line guide die (27) is tightly attached to the bar at the starting position of the second forming rotary die (26), the power source (3) is started, and the second forming rotary die (26) is rotated to finish machining of the other end of the workpiece (002).

2. The automatic hook bending continuous production line according to claim 1, wherein the first molding rotary die (24) is designed into an upper part and a lower part, the lower part is a sliding base (241) capable of sliding out in a translation way, the upper part is a turnover seat (242) hinged with the sliding base (241), the turnover seat (242) is rotatably sleeved with a rotary die (243), the bending device (2) further comprises a power mechanism and a sliding component (6) which are arranged in a matching way with the sliding action of the first molding rotary die (24), the power mechanism is a cylinder component (4), and the piston head of the power mechanism is fixedly connected with the sliding base (241).

3. The automatic bending continuous production line for hooks according to claim 2, characterized in that an elastic band (03) is connected between the overturning seat (242) and the sliding seat (241).

4. The automatic bending and continuous production line of hooks according to claim 2, characterized in that said power source (3) comprises a driving motor (31), a first output end (32) provided on the output shaft of the driving motor (31) and a second output end (34) for obtaining power by providing a transmission mechanism (33); the shaft disengaging mechanism (5) is arranged below the second output end (34), the end part of the shaft (04) matched with the second output end (34) is provided with a spline, the shaft disengaging mechanism (5) is detachably and fixedly connected with the shaft (04), and the inner top of the rotary die (243) is provided with a key groove matched with the spline.

5. The automatic bending continuous production line for hooks according to claim 2, characterized in that a stop (61) is fixedly arranged on the sliding assembly (6), and the stop (61) partially covers and is slightly higher than the disc surface of the rotary die (243).

6. The automatic hook bending continuous production line according to claim 2, characterized in that the side edge of the sliding table (7) is provided with a lifting assembly (8), the lifting assembly (8) comprises a lifting motor (81) fixed at the lower end, a screw rod transmission member (82) and a horizontal mounting seat (83) fixedly connected with the second molding rotary die (26), the free end of the second molding rotary die (26) is provided with a section of spline extending downwards, the upper part of the first output end (32) is connected with a coupler, and the free end of the second molding rotary die (26) is connected with the coupler along with the driving of the lifting motor (81) in the descending process, and is separated from the coupler in the ascending process.

7. The automatic hook bending continuous production line according to claim 1, wherein elastic reset pieces are arranged at the connection parts between the first spiral line guide die (25) and the second spiral line guide die (27) and the sliding table (7).

8. The automatic hook bending continuous production line according to claim 1, wherein a pick-up mechanical arm (9) is fixedly arranged on the sliding table (7).

9. Automatic continuous production line for bending hooks according to claim 1, characterized in that an auxiliary lifting assembly (10) is provided in the guiding ramp (21).

10. A method for manufacturing hooks by using the automatic bending continuous production line for hooks according to any one of claims 1 to 9, characterized by comprising the following steps:

s1, a bar (001) enters a guide sliding table (21) along with a feeding device, and slides to a limit part (02) along with the inclination of the sliding table 21;

s2, starting movement of the sliding table (7), enabling the inner concave surface of the first spiral line guide die (25) to be clung to the bar (001), starting the driving motor (31), enabling the first forming rotary die (24) to rotate anticlockwise, and simultaneously enabling the auxiliary lifting assembly (10) to lift upwards in an auxiliary mode, wherein one end of the bar (001) is formed around the periphery of the first forming rotary die (24) in a surrounding mode to form a semi-finished workpiece (002);

s3, starting a lifting motor (81), enabling a horizontal mounting seat (83) to drive a second molding rotary die (26) to move upwards until a neutral position appears, starting a sliding table (7), enabling a first spiral line guide die (25) to push a workpiece (002) to pass through the neutral position, keeping the workpiece at the outer diameter position of the first spiral line guide die (25), enabling a shaft (04) to be separated by a starting shaft separating mechanism (5), enabling a cylinder assembly (4) to slide the first molding rotary die (24) outwards to a set position, keeping pressure stably and fixedly, starting the lifting motor (81), enabling the horizontal mounting seat (83) to move downwards until the second molding rotary die (26) is engaged with a coupler, at the moment, enabling a bayonet lock (01) on the second molding rotary die (26) to be exactly clamped on the outer side of the workpiece (002), and enabling the sliding table (7) to move the second spiral line guide die (27) to be in full contact with the workpiece (002);

s4, starting a driving motor (31), wherein the other end of the workpiece (002) is formed around the periphery of the second forming rotary die (26), simultaneously, pulling the workpiece (002) to enable the overturning seat (242) to overturn, simultaneously, the cylinder assembly (4) is in decompression, the downward force of the workpiece (002) forces the first forming rotary die (24) to further retreat, one bending part of the workpiece (002) is separated, and the other bending part of the workpiece (002) is manufactured;

s5, starting the pick-up mechanical arm (9) to clamp the workpiece (002), starting the lifting motor (81) to rise, taking the workpiece (002) out smoothly, resetting the turning seat (242), the first spiral line guide die (25) and the second spiral line guide die (27) under the action of set elastic force, and returning other action parts to the initial positions under the corresponding power sources.