Automatic tail support device for drum drawing machine and operation method thereof

Abstract

The present invention relates to an automatic material tail support device for a drum drawing machine and an operation method thereof, wherein the support device comprises a clamping mechanism, a circulating track and a grabbing mechanism, wherein the circulating track comprises a fixed track, a swinging track and a joint, wherein the joint can control the swinging track to swing, wherein the fixed track and the swinging track are provided with a clamping mechanism, wherein the grabbing mechanism is used to remove the clamping mechanism on the material preparation position basket and transfer it to the fixed track, wherein when the swinging track overlaps the material receiving position basket, the grabbing mechanism pushes the clamping mechanism at the end of the fixed track to move forward and pushes the clamping mechanism at the front end of the swinging track away from the track and clamps it at the edge of the material receiving position basket at the same time, wherein the clamping mechanism is clamped to the edge of the material receiving position basket and can hold the falling material tail. The present invention can automatically hold the material tail in the process of the material tail falling, thereby facilitating the full automation operation of the entire drawing machine.

Description

Technical Field

[0001] The invention relates to a coil drawing machine, in particular to an automatic tail supporting device for the coil drawing machine and an operating method thereof. Background Art

[0002] Conventional drawing machines, such as Figure 1 As shown, since the drawn material 17 needs to be drawn multiple times from the blank to the finished product, according to its production characteristics, the equipment is a multi-station cycle operation, and the basket circulation system 11 is a closed circumferential circulation system with multiple stations. Each station has a circular basket, and the material is placed in the basket in the form of multiple turns (ranging from dozens to thousands of turns). One of the baskets is empty, and the rest contain material. The drawing machine 10 and its drawing drum 18 (a component that provides continuous drawing power through rotation) are located above the receiving position basket 12 (such as Figure 2 This is the upstream and downstream dividing point of the drawing process.

[0003] At the beginning of drawing, the material basket 12 on the receiving position is empty, and the other material baskets 15 are all filled with material. During the drawing operation, the drum 18, the receiving position material basket 12, and the discharge position material basket 14 are all rotating. The material in the upstream discharge position material basket passes through the drawing die 16, is wound on the outer circle of the drawing main machine drum, and is pulled through the die continuously by the rotation of the drum to be drawn. At the same time, the drawing material 17 wound on the drum continuously falls from top to bottom into the receiving position material basket 12 for collection (such as Figure 2 As shown in the figure, the last section of material that passes through the die and falls into the material basket is called the tail 19. After all the materials have passed through, the material basket at the discharge position becomes an empty basket, and the material has completed one drawing. Then the material basket circulation system 11 is started, and all the material baskets move forward one station at the same time. The empty basket at the discharge position just now moves to the receiving position, ready to receive materials again, and the material basket 13 (with materials) at the preparation position moves to the discharge position, ready for drawing. When the materials in all the material baskets have been drawn once, a drawing pass is completed. At this time, a smaller die is replaced and the next cycle (i.e., the next drawing pass) is carried out, and this cycle is repeated until the drawn material reaches the finished product size.

[0004] During the production process, workers need to prepare materials for drawing by straightening, lubricating, and making heads at the material preparation position; when collecting materials, the tail of the last circle of materials falls from top to bottom into the basket and mixes with the previous materials. In this link, workers must first find and grab the tail of the materials in the basket, and then straighten, lubricate, make heads and other preparatory work for drawing, so as to prepare for the next drawing. Therefore, the equipment cannot be operated automatically without personnel. In order to reduce labor costs and improve production efficiency, more and more companies hope to make drawing machines fully automated. At present, automatic straightening, lubrication, and head making can be realized, but the process of distinguishing and grabbing the tail of the materials has become a difficult problem to promote the overall automation of the drawing machine, which needs to be solved urgently. Summary of the invention

[0005] In order to overcome the above defects, the present invention provides an automatic material tail supporting device for a disc drawing machine, which can automatically support the material tail during its falling process to cooperate with automatic head making and other tasks, thereby realizing fully automated operation of the entire drawing machine.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] The lifting of the ...

[0008] Preferably, the grabbing mechanism is located on one side of the material preparation position basket, and the swing track is located near the material receiving position basket. When the joint is in normal state, the front end of the swing track is located above the outer side of the material receiving position basket. When the clamping mechanism passes through the joint, the joint causes the front end of the swing track to overlap the edge of the material receiving position basket, and the width of the edge of the material receiving position basket is smaller than the width of the swing track.

[0009] Preferably, the swing track is fixedly connected to the joint, and the joint is also provided with a support seat, a first connecting shaft and a second connecting shaft. The joint is connected to the fixed track through the first connecting shaft and the joint can swing up and down around the first connecting shaft. The support seat is connected to the fixed track through the second connecting shaft and the support seat can swing left and right around the second connecting shaft. The support seat is fixedly provided with a first spring sheet and a second spring sheet, the first spring sheet is supported at the bottom of the swing track, and the second spring sheet is supported at the left side of the swing track.

[0010] Preferably, the clamping mechanism comprises an elastic clamping claw and a blocking rod, the elastic clamping claw is used to clamp on the circulating track or the material basket, and the blocking rod is connected to one side of the elastic clamping claw and the blocking rod can rotate relative to the elastic clamping claw.

[0011] Preferably, the clamping mechanism is also provided with a limiting spring and a torsion spring, one end of the baffle rod is rotatably connected to one side of the elastic clamp via a rotating shaft, the limiting spring is fixed to one side of the elastic clamp and is used to clamp the baffle rod, the torsion spring is sleeved on the rotating shaft and one end of the torsion spring abuts against the elastic clamp, and the other end abuts against one end of the baffle rod.

[0012] Preferably, a toggle mechanism is provided above the material receiving position basket, and the toggle mechanism includes a toggle block and a driving cylinder, and the driving cylinder can drive the toggle block to move up and down, and when the clamping mechanism on the material receiving position basket runs to just below the toggle mechanism, the driving cylinder drives the toggle block to extend in and block the blocking rod and drive the blocking rod to rotate relative to the elastic clamp.

[0013] Preferably, the grabbing mechanism includes a first bracket, a rotary cylinder, a second bracket, a grabbing arm, a grabbing cylinder and a hook, the second bracket is rotatably connected to the first bracket, the rotary cylinder is fixed to the first bracket, and the rotary cylinder is connected to the second bracket, the grabbing arm and the grabbing cylinder are fixed to the second bracket, and the hook is fixedly connected to the piston rod of the grabbing cylinder.

[0014] Preferably, the first bracket is fixed between the material preparation basket and the fixed track, the second bracket is connected to the first bracket by a rotating shaft, and the rotary cylinder can drive the second bracket to rotate around the rotating shaft, so that the grabbing arm is overlapped with the material preparation basket or the fixed track, and when the grabbing arm is overlapped with the material preparation basket, the material preparation basket rotates, so that the grabbing arm is inserted into the clamping mechanism, and at the same time, the hook hooks the clamping mechanism under the drive of the grabbing cylinder and pulls the clamping mechanism away from the material preparation basket; when the grabbing arm is overlapped with the fixed track, the hook pushes the clamping mechanism to separate from the grabbing arm and clamp it to the fixed track under the drive of the grabbing cylinder; when the clamping mechanism needs to be pushed into the edge of the material receiving basket, the hook pushes the clamping mechanism at the end of the fixed track under the drive of the grabbing cylinder.

[0015] Preferably, a limit block is fixedly provided on the second bracket, and when the hook pulls the clamping mechanism into the grabbing arm, the limit block pushes the blocking rod to rotate and retract.

[0016] The present invention also provides an operation method of a tail automatic support device for a drum drawing machine, the steps of which are as follows:

[0017] Step 1: Clamp several clamping mechanisms to the fixed track and the swing track in sequence, and the clamping mechanisms fill the entire track and lean against each other. No clamping mechanism is clamped on the joint. At this time, the front end of the swing track is located above the right side of the material receiving position basket;

[0018] Step 2: When the drawing process is about to end, the material collection basket switches from high-speed operation to slow-speed operation. When the detection device detects that the tail of the material is about to fall, the grabbing cylinder at the fixed track drives the hook forward, pushing the clamping mechanism at the end of the fixed track forward;

[0019] Step 3: The clamping mechanisms that are pressed against each other push the previous one one by one and move forward together. When a clamping mechanism passes through the joint, the joint rotates to make the swing track slightly move to the lower left and overlap the material basket at the receiving position. Then, the clamping mechanism at the front end of the swing track is pushed away from the swing track under the action of the driving force and clamped on the edge of the material basket at the receiving position. That is, all the clamping mechanisms move forward by the displacement of one clamping mechanism, and the end of the fixed track is vacant.

[0020] Step 4: The material basket at the receiving position moves with the clamping mechanism. When the clamping mechanism moves to the toggle mechanism, the driving cylinder in the toggle mechanism drives the toggle block to move downward. The inclined surface of the toggle block blocks the stopper rod, and the material basket at the receiving position still drives the elastic clamping claw to continue to rotate. Then the stopper rod is pulled out, that is, the stopper rod and the elastic clamping claw form an angle of 90°, and the falling material tail just falls on the stopper rod;

[0021] Step 5: The material basket circulation system of the drawing machine starts running, all the material baskets move forward one station, the material basket at the preparation position enters the material discharge position, and the material basket at the middle position enters the material preparation position, that is, the material basket with the clamping mechanism enters the material preparation position and becomes the material basket at the preparation position. With the cooperation of the rotation of the material preparation table, the tail of the material on the baffle rod is automatically introduced into the automatic straightening machine;

[0022] Step 6: The rotary cylinder of the grabbing mechanism drives the second bracket to rotate around the rotating shaft, so that the grabbing arm overlaps the material basket at the material preparation position. The material basket at the material preparation position rotates, so that the grabbing arm is inserted into the clamping mechanism of the material preparation position basket. At the same time, the hook hooks the clamping mechanism under the drive of the grabbing cylinder and pulls the clamping mechanism away from the material preparation position basket, so that the clamping mechanism is clamped on the grabbing arm. In this process, the stop rod is rotated and retracted under the push of the limit block;

[0023] Step seven: the rotary cylinder drives the second bracket to rotate around the rotating shaft again, so that the grabbing arm returns to the initial position, that is, the grabbing arm is overlapped on the fixed track, and the grabbing cylinder pushes the clamping mechanism on the grabbing arm, so that the clamping mechanism enters the empty space on the fixed track, and finally the supporting device is in a standby state; this cycle is repeated to automatically complete the grabbing action of the tail of the material.

[0024] The beneficial effects of the present invention are as follows: the present invention comprises a clamping mechanism, a circulating track and a grasping mechanism, wherein the clamping mechanism is used to support the tail of the material so that the tail of the material does not fall into the material basket, the circulating track is used to place the clamping mechanism, and the grasping mechanism is used to recycle the clamping mechanism to the circulating track and to transport the clamping mechanism to the material receiving position basket. The present invention can hold the tail of the material in the falling process to cooperate with automatic head making, automatic material threading and other tasks, thereby realizing the fully automatic operation of the drawing machine, greatly improving the working efficiency of the drawing machine, reducing labor costs, and optimizing the working environment of the operator; the present invention utilizes the grasping mechanism to recycle the clamping mechanism, thereby realizing the automatic recycling of the clamping mechanism, and the elastic clamping claws in the clamping mechanism utilize the principle of elastic clamping, without the need for power drive, simplifying the structure, and the clamping mechanism circulates back and forth through the track, with a high degree of automation and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a drawing machine in the prior art;

[0026] Figure 2 It is a schematic diagram of the drawing process of the prior art;

[0027] Figure 3 It is a schematic diagram of the use process of the present invention;

[0028] Figure 4 for Figure 3 A magnified view of the structure in the middle;

[0029] Figure 5 It is a structural schematic diagram of the grabbing mechanism in the present invention being located at the grabbing position;

[0030] Figure 6 It is a structural schematic diagram of the grabbing mechanism in the present invention being located at the driving position;

[0031] Figure 7 It is a schematic diagram of the clamping mechanism holding the tail of the material in the present invention;

[0032] Figure 8 This is an enlarged view of the clamping mechanism of the present invention holding the tail of the material;

[0033] Fig. 9 It is a schematic diagram of the blocking rod of the clamping mechanism of the present invention in a retracted state;

[0034] Fig.10It is a schematic diagram of the blocking lever of the clamping mechanism of the present invention in an open state;

[0035] Fig.11 One of the three-dimensional diagrams of the clamping mechanism in the present invention;

[0036] Fig.12 The second is a three-dimensional diagram of the clamping mechanism of the present invention;

[0037] Fig.13 The third stereogram of the clamping mechanism of the present invention;

[0038] Fig.14 It is a structural schematic diagram of the toggle mechanism in the present invention;

[0039] Fig.15 One of the three-dimensional diagrams of the grabbing mechanism in the present invention;

[0040] Fig.16 This is the second stereogram of the grabbing mechanism in the present invention;

[0041] Fig.17 The third is a three-dimensional diagram of the grabbing mechanism in the present invention;

[0042] Fig.18 It is a schematic diagram of the swing track swinging up and down in the present invention;

[0043] Fig.19 It is a schematic diagram of the swing track swinging left and right in the present invention;

[0044] Fig. 20 It is a structural schematic diagram of the joint in the present invention;

[0045] In the figure: 10-drawing machine, 11-basket circulation system, 12-collecting basket, 13-preparation basket, 14-discharging basket, 15-middle basket, 16-drawing die, 17-drawing material, 18-coil, 19-tail, 20-clamping mechanism, 21-elastic clamping claw, 22-stop rod, 23-limiting spring leaf, 24-torsion spring, 25-shift block, 26-driving cylinder, 30-circulating track, 31-fixed track, 32-swinging track, 33-joint, 34-support seat, 35-first connecting shaft, 36-second connecting shaft, 37-first spring leaf, 38-universal ball, 40-grabbing mechanism, 41-first bracket, 42-rotating cylinder, 43-second bracket, 44-grabbing arm, 45-grabbing cylinder, 46-hook. DETAILED DESCRIPTION

[0046] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0047] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0048] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0049] Example: Figure 3-20As shown, an automatic tail support device for a drum drawing machine, the drum drawing machine includes a basket circulation system 11, the basket circulation system 11 is provided with a receiving position basket 12, a preparation position basket 13 and a discharge position basket 14, characterized in that: the support device includes a clamping mechanism 20, a circulation track 30 and a grasping mechanism 40, the circulation track 30 includes a fixed track 31, a swing track 32 and a joint 33 connected to the fixed track 31 and the swing track 32, the joint 33 can control the swing track 32 to swing, the fixed track 31 and the swing track 32 are provided with a plurality of strings The clamping mechanisms are connected and pressed against each other, and the clamping mechanisms can move together along the circulating track; the gripping mechanism 40 is used to remove the clamping mechanism 20 on the preparation position basket 13 and transfer it to the fixed track 31. When the swing track 32 overlaps the receiving position basket 12, the gripping mechanism 40 pushes the clamping mechanism 20 at the end of the fixed track 31 to move forward and pushes the clamping mechanism 20 at the front end of the swing track 32 away from the track and clamps it to the receiving position basket 12 at the same time. The clamping mechanism 20 is clamped on the edge of the receiving position basket 12 and can hold the falling material tail 19 without letting it fall into the basket.

[0050] The grabbing mechanism 40 is located on one side of the material preparation basket 13, and the swing track 32 is located near the material collection basket 12. When the joint 33 is in normal state, the front end of the swing track 32 is located above the outer side of the material collection basket 12. When the clamping mechanism 20 passes through the joint 33, the joint 33 makes the front end of the swing track 32 overlap the edge of the material collection basket 12, and the width of the edge of the material collection basket 12 is smaller than the width of the swing track 32. The fixed track 31 is arranged along the material preparation position and the material discharge position, and the clamping mechanisms 20 are arranged on the fixed track 31 and the swing track 32 in sequence. The elastic clamping claws 21 of the clamping mechanism are clamped on the track by elastic force, and the end close to the material basket at the material receiving position is defined as the front end of the track, then the blocking rod 22 of the rear end clamping mechanism in the adjacent clamping mechanism supports the front end clamping mechanism. Normally, there is no clamping mechanism 20 at the joint. At this time, the front end of the swing track is located on the upper right side of the material basket at the material receiving position. Therefore, the swing track 32 will not cause any interference to the high-speed rotating material basket 12 at the material receiving position. When the drawing process is about to end, the speed of the material basket drops to a slow enough speed, and the material tail 19 is about to fall, the grabbing mechanism 40 pushes the clamping claws 21 at the end of the fixed track 31. The holding mechanism 20 moves forward, and when a clamping mechanism 20 in the middle part passes through the joint 33, the elastic clamping force of the clamping mechanism causes the joint and the swing track 32 to slightly move to the lower left and overlap the receiving position basket 12. Then, the front-end clamping mechanism 20 on the swing track 32 is pushed toward the receiving position basket 12 under the action of the driving force. Because the width of the receiving position basket 12 is smaller than the width of the swing track, the elastic clamping claw 21 in the clamping mechanism directly contracts and clamps the receiving position basket 12 when it leaves the track. The receiving position basket 12 rotates with the clamping mechanism 20. When it rotates to the toggle mechanism, the toggle mechanism pulls out the baffle 22, and the baffle can hold the falling material tail 19 to prevent the material tail from falling directly into the basket. The device is also provided with a control system, which is electrically connected to the detection device, sensor and other equipment for automatically controlling the operation of the entire disc drawing machine.

[0051] The swing track 32 is fixedly connected to the joint 33, and the joint 33 is also provided with a support seat 34, a first connecting shaft 35 and a second connecting shaft 36. The joint 33 is connected to the fixed track 31 through the first connecting shaft 35 and the joint can swing up and down around the first connecting shaft 35. Fig.18 As shown, the support base 34 is connected to the fixed track 31 through the second connecting shaft 36 and the support base 34 can swing left and right around the second connecting shaft 36. Fig.19 As shown, the support seat 34 is fixed with a first spring sheet 37 and a second spring sheet, the first spring sheet is supported below the swing track 32, and the second spring sheet is supported on the left side of the swing track 32. Fig. 20As shown, a universal ball 38 is provided on the swing track 32, which is supported on the first spring sheet and the second spring sheet through the universal ball. When no clamping mechanism 20 passes through the joint 33, the first spring sheet 37 and the second spring sheet are in a natural state and supported on the swing track 32, so that the end of the swing track 32 is located on the right side and above the material receiving position basket. When the clamping mechanism 20 passes through the joint 33, the clamping mechanism 20 pushes the joint and gives the joint a force to the left, so that the joint 33 drives the swing track 32 to rotate to the lower left relative to the fixed track, so that the swing track 32 overlaps the material receiving position basket 12. At this time, the first spring sheet and the second spring sheet are compressed. Once the clamping mechanism 20 completely passes through the joint 33, the swing track 32 is reset under the action of the restoring force of the first spring sheet and the second spring sheet.

[0052] like Figure 11-13 As shown, the clamping mechanism 20 includes an elastic clamp 21 and a stopper 22. The elastic clamp 21 is used to clamp on the circulating track 30 or the material basket. The stopper 22 is connected to one side of the elastic clamp and the stopper 22 can rotate relative to the elastic clamp. The working principle of the elastic clamp 21 is equivalent to a large folder. It is made of spring steel and has strong elasticity and clamping force. It is directly clamped on the fixed track and the swing track, and is arranged one on top of the other. The width of the track is greater than the width of the edge of the material basket. Therefore, when clamped on the track, the opening of the elastic clamp 21 is greater than the width of the material basket, so that the opening of the elastic clamp 21 is reduced when it is off the track and is directly clamped on the material basket.

[0053] The clamping mechanism 20 is also provided with a limit spring 23 and a torsion spring 24. One end of the blocking rod 22 is rotatably connected to one side of the elastic clamp 21 via a rotating shaft. The limit spring 23 is fixed to one side of the elastic clamp and is used to clamp the blocking rod 22. The torsion spring 24 is sleeved on the rotating shaft and one end of the torsion spring 24 abuts against the elastic clamp, and the other end abuts against one end of the blocking rod 22. When not in operation, Fig. 9 As shown, the blocking rod 22 is parallel to and fits the elastic clamping claw, and the blocking rod 22 is limited by the limiting spring sheet 23, that is, the blocking rod is in a retracted state, at which time the torsion spring 24 is twisted. When the blocking rod 22 is separated from the limiting spring sheet 23, the blocking rod is rotated around the rotating axis under the action of the restoring force of the torsion spring until the blocking rod is rotated 90° and is disposed with the elastic clamping claw, as shown in FIG. Figure 7 , 8 As shown in FIG. 10 , the blocking rod is in the open state, that is, the blocking rod 22 is in the working state to block the falling material tail 19 and prevent the material tail from falling directly into the material basket.

[0054] A toggle mechanism is provided above the receiving material basket 12, and the toggle mechanism includes a toggle block 25 and a driving cylinder 26. The driving cylinder 26 can drive the toggle block 25 to move up and down. When the clamping mechanism 20 on the receiving material basket 12 moves to the bottom of the toggle mechanism, the driving cylinder 26 drives the toggle block 25 to extend into and block the blocking rod 22, thereby driving the blocking rod 22 to rotate relative to the elastic clamp 21. Fig.14 As shown, the driving cylinder 26 is fixed on the frame above the material receiving basket 12, and the piston rod of the driving cylinder 26 is connected to the shift block 25. The shift block is inclined outward relative to the movement direction of the clamping mechanism 20. The shift block 25 moves downward under the action of the driving cylinder 26 to block the shift rod, while the material receiving basket 12 is still rotating, that is, the elastic clamp 21 continues to rotate, and the shift rod 22 is pushed outward by the inclined surface of the shift block 25, so that the shift rod 22 swings relative to the elastic clamp, and the shift rod is disengaged from the limiting spring sheet 23 and continues to swing outward under the action of the torsion spring 24 until it forms an angle of 90° with the elastic clamp, and finally the shift rod 22 rotates from a position parallel to the elastic clamp 21 to a position perpendicular to the elastic clamp, so as to hold the falling material tail.

[0055] like Figure 15-17 As shown, the grabbing mechanism 40 includes a first bracket 41, a rotary cylinder 42, a second bracket 43, a grabbing arm 44, a grabbing cylinder 45 and a hook 46. The second bracket 43 is rotatably connected to the first bracket 41, the rotary cylinder 42 is fixed to the first bracket 41, and the rotary cylinder 42 is connected to the second bracket 43, the grabbing arm 44 and the grabbing cylinder 45 are fixed to the second bracket 43, and the hook 46 is fixedly connected to the piston rod of the grabbing cylinder 45.

[0056] The first bracket 41 is fixed between the material preparation basket 13 and the fixed track 31, and the second bracket 43 is connected to the first bracket 41 through a rotating shaft. The rotary cylinder 42 can drive the second bracket 43 to rotate around the rotating shaft, so that the grabbing arm 44 is overlapped with the material preparation basket 13 or the fixed track 31. When the grabbing arm 44 is overlapped with the material preparation basket 13, the material preparation basket 13 rotates, so that the grabbing arm 44 is inserted into the clamping mechanism 20, and at the same time The hook 46 hooks the clamping mechanism under the drive of the grabbing cylinder 45 and pulls the clamping mechanism away from the preparation position basket 13; when the grabbing arm 44 is overlapped on the fixed rail 31, the hook 46 pushes the clamping mechanism to separate from the grabbing arm 44 and clamp it on the fixed rail under the drive of the grabbing cylinder 45; when the clamping mechanism 20 needs to be pushed into the edge of the receiving position basket 12, the hook 46 pushes the clamping mechanism 20 at the end of the fixed rail 31 under the drive of the grabbing cylinder 45.

[0057] A stop block is fixedly provided on the second bracket 43. When the hook 46 pulls the clamping mechanism 20 into the grabbing arm 44, the stop block pushes the stop rod 22 to rotate and retract. When the clamping mechanism 20 is clamped in the material preparation basket 13, the stop rod 22 and the elastic clamping claw 21 form an angle of 90°. When the hook 46 pulls the clamping mechanism 20 to the stop block, the stop block blocks the stop rod 22, and the elastic clamping claw continues to be pulled outward and backward, so the stop rod 22 rotates relative to the elastic clamping claw and is retracted into the stop spring 23.

[0058] The operation method of the automatic tail support device of the present invention comprises the following steps:

[0059] Step 1: Clamp several clamping mechanisms 20 to the fixed rail 31 and the swing rail 32 in sequence, and the clamping mechanisms 20 fill the entire rail and lean against each other. No clamping mechanism 20 is clamped on the joint 33. At this time, the front end of the swing rail 32 is located above the right side of the material receiving position basket 12; the clamping mechanism 20 at the front end of the swing rail is in a standby state;

[0060] Step 2: When the drawing process is about to end, the material collection basket 12 is switched from high-speed operation to slow-speed operation. When the detection device detects that the tail of the material is about to fall, the grabbing cylinder 45 at the fixed track 31 drives the hook 46 to push forward, thereby pushing the clamping mechanism 20 at the end of the fixed track 31 to move forward;

[0061] Step 3: The clamping mechanisms 20 that are pressed against one by one push the previous one and move forward together. When a clamping mechanism 20 passes through the joint 33, the joint rotates to make the swing track 32 slightly move to the lower left and overlap the material receiving position basket 12. Then, the frontmost clamping mechanism 20 on the swing track 32 is pushed away from the swing track under the action of the driving force and clamped on the edge of the material receiving position basket 12. That is, all the clamping mechanisms 20 move forward by the displacement of one clamping mechanism, and the end of the fixed track 31 is vacant.

[0062] Step 4: The material basket 12 at the receiving material position operates together with the clamping mechanism 20. When the clamping mechanism 20 rotates to the toggle mechanism, the driving cylinder 26 in the toggle mechanism drives the shifting block 25 to move downward. The inclined surface of the shifting block 25 blocks the baffle rod 22, and the material basket at the receiving material position still drives the elastic clamping claw 21 to continue to rotate, so that the baffle rod 22 is pushed out, that is, the baffle rod 22 and the elastic clamping claw 21 form an angle of 90°, and the falling material tail 19 just falls on the baffle rod 22; specifically: when the baffle rod 22 is blocked by the inclined surface of the shifting block 25, it can rotate relative to the elastic clamping claw and make the baffle rod disengage from the limiting spring sheet 23. The baffle rod 22 continues to swing under the action of the torsion spring 24 until it forms an angle of 90° with the elastic clamping claw. Finally, the baffle rod 22 rotates from a position parallel to the elastic clamping claw 21 to a position perpendicular to the elastic clamping claw, so as to hold the falling material tail;

[0063] Step 5: The material basket circulation system 11 of the drawing machine starts to run, all the material baskets move forward one station, the material basket 13 at the material preparation position enters the material discharge position, and the material basket 15 at the intermediate position enters the material preparation position, that is, the material basket with the clamping mechanism 20 enters the material preparation position and becomes the material basket at the material preparation position. With the cooperation of the rotation of the material preparation table, the tail of the material on the baffle 22 is automatically introduced into the automatic straightening machine;

[0064] Step six: The rotary cylinder 42 of the grabbing mechanism 40 drives the second bracket 43 to rotate around the rotating shaft, so that the grabbing arm 44 is overlapped with the material preparation basket 13, and the material preparation basket 13 rotates, so that the grabbing arm 44 is inserted into the clamping mechanism 20 of the material preparation basket. At the same time, the hook 46 hooks the clamping mechanism under the drive of the grabbing cylinder 45 and pulls the clamping mechanism away from the material preparation basket 13, so that the clamping mechanism 20 is clamped on the grabbing arm 44. During this process, the blocking rod 22 is rotated and retracted under the push of the limit block; that is, the blocking rod 22 is rotated from a position perpendicular to the elastic clamping claw 21 to a position parallel to and attached to the elastic clamping claw; the grabbing mechanism 40 can rotate between two positions, one position is the driving position (initial position, such as Figure 6 As shown), at this time, the grabbing arm 44 is aligned with the fixed rail 31, and the other position is the grabbing position (as shown Figure 5 As shown), at this time, the grabbing arm is aligned with the edge of the material basket at the material preparation position. Only when the clamping mechanism 20 on the material basket at the material preparation position needs to be recovered, the grabbing mechanism will be turned to the grabbing position.

[0065] Step seven: the rotary cylinder 42 drives the second bracket 43 to rotate around the rotating axis again, so that the grabbing arm returns to the initial position, that is, the grabbing arm 44 is overlapped on the fixed track 31, and the grabbing cylinder 45 pushes the clamping mechanism 20 on the grabbing arm, so that the clamping mechanism 20 enters the empty space on the fixed track 31, and finally the supporting device is in a standby state; this cycle is repeated to automatically complete the grabbing action of the material tail 19. During the entire operation process, since the material baskets at the discharge position and the collection position are rotating at high speed when the material is pulled at high speed, no obstacles or interference are allowed when the material is discharged or collected. Therefore, there is no clamping mechanism on these two material baskets at this time. Therefore, the support device not only needs to smoothly clamp the clamping mechanism 20 on the collection position material basket at the end of pulling, but also needs to remove the clamping mechanism from the material basket when the material basket enters the preparation position to ensure that there is no clamping mechanism on the material basket entering the discharge position, and at the same time, the retracted clamping mechanism is put back on the fixed track 31, thereby completing the recycling of the clamping mechanism, so that the entire operation process can be repeated and run automatically.

[0066] It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these modifications and improvements all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. An automatic tail support device for a drum drawing machine, the drum drawing machine comprising a basket circulation system (11), the basket circulation system (11) being provided with a receiving basket (12), a preparation basket (13) and a discharge basket (14), characterized in that: The tail material automatic supporting device comprises a clamping mechanism (20), a circulating track (30) and a grasping mechanism (40), wherein the circulating track (30) comprises a fixed track (31), a swing track (32) and a joint (33) connected to the fixed track (31) and the swing track (32), wherein the joint (33) can control the swing track (32) to swing, and the fixed track (31) and the swing track (32) are provided with a plurality of clamping mechanisms connected in series and abutting against each other, and the clamping mechanisms can move together along the circulating track; the grasping mechanism (40) is used to The clamping mechanism (20) on the material basket (13) at the material preparation position is removed and transferred to the fixed track (31). When the swing track (32) overlaps the material basket (12) at the material receiving position, the gripping mechanism (40) pushes the clamping mechanism (20) at the end of the fixed track (31) to move forward and pushes the clamping mechanism (20) at the front end of the swing track (32) away from the track and clamps it to the material basket (12) at the material receiving position. The clamping mechanism (20) is clamped to the edge of the material basket (12) at the material receiving position and can hold the falling material tail (19) to prevent it from falling into the basket.

2. The tail automatic support device for a drum drawing machine according to claim 1, characterized in that: The grabbing mechanism (40) is located on one side of the material preparation basket (13), and the swing track (32) is located near the material collection basket (12). When the joint (33) is in a normal state, the front end of the swing track (32) is located above the outer side of the material collection basket (12). When the clamping mechanism (20) passes through the joint (33), the joint (33) causes the front end of the swing track (32) to overlap the edge of the material collection basket (12), and the width of the edge of the material collection basket (12) is smaller than the width of the swing track (32).

3. The tail automatic support device for the drum drawing machine according to claim 2 is characterized in that: The swing track (32) is fixedly connected to the joint (33); the joint (33) is also provided with a support seat (34), a first connecting shaft (35) and a second connecting shaft (36); the joint (33) is connected to the fixed track (31) via the first connecting shaft (35) and the joint can swing up and down around the first connecting shaft (35); the support seat (34) is connected to the fixed track (31) via the second connecting shaft (36) and the support seat (34) can swing left and right around the second connecting shaft (36); the support seat (34) is fixedly provided with a first spring sheet (37) and a second spring sheet; the first spring sheet is supported below the swing track (32) and the second spring sheet is supported on the left side of the swing track (32).

4. The tail automatic support device for a drum drawing machine according to claim 1, characterized in that: The clamping mechanism (20) comprises an elastic clamping claw (21) and a blocking rod (22), wherein the elastic clamping claw (21) is used to clamp onto a circulating track (30) or a material basket, and the blocking rod (22) is connected to one side of the elastic clamping claw and can rotate relative to the elastic clamping claw.

5. The tail automatic support device for a drum drawing machine according to claim 4, characterized in that: The clamping mechanism (20) is also provided with a limit spring (23) and a torsion spring (24); one end of the blocking rod (22) is rotatably connected to one side of the elastic clamp (21) via a rotating shaft; the limit spring (23) is fixed to one side of the elastic clamp and is used to clamp the blocking rod (22); the torsion spring (24) is sleeved on the rotating shaft and one end of the torsion spring (24) abuts against the elastic clamp, and the other end abuts against one end of the blocking rod (22).

6. The tail automatic support device for a drum drawing machine according to claim 4, characterized in that: A shifting mechanism is provided above the material receiving position basket (12), and the shifting mechanism comprises a shifting block (25) and a driving cylinder (26). The driving cylinder (26) can drive the shifting block (25) to move up and down. When the clamping mechanism (20) on the material receiving position basket (12) moves to the position directly below the shifting mechanism, the driving cylinder (26) drives the shifting block (25) to extend into and block the blocking rod (22), thereby driving the blocking rod (22) to rotate relative to the elastic clamping claw (21).

7. The tail automatic support device for a drum drawing machine according to claim 6, characterized in that: The grabbing mechanism (40) comprises a first bracket (41), a rotary cylinder (42), a second bracket (43), a grabbing arm (44), a grabbing cylinder (45) and a hook (46); the second bracket (43) is rotatably connected to the first bracket (41); the rotary cylinder (42) is fixed to the first bracket (41), and the rotary cylinder (42) is connected to the second bracket (43); the grabbing arm (44) and the grabbing cylinder (45) are fixed to the second bracket (43); and the hook (46) is fixedly connected to the piston rod of the grabbing cylinder (45).

8. The tail automatic support device for a drum drawing machine according to claim 7, characterized in that: The first bracket (41) is fixed between the material preparation basket (13) and the fixed track (31), and the second bracket (43) is connected to the first bracket (41) via a rotating shaft. The rotary cylinder (42) can drive the second bracket (43) to rotate around the rotating shaft, so that the grabbing arm (44) overlaps the material preparation basket (13) or overlaps the fixed track (31). When the grabbing arm (44) overlaps the material preparation basket (13), the material preparation basket (13) rotates, so that the grabbing arm (44) is inserted into the clamping mechanism (20), and the grabbing arm (44) is connected to the material preparation basket (13). When the hook (46) is driven by the grabbing cylinder (45) to hook the clamping mechanism and pull the clamping mechanism away from the material preparation basket (13); when the grabbing arm (44) is overlapped with the fixed track (31), the hook (46) is driven by the grabbing cylinder (45) to push the clamping mechanism away from the grabbing arm (44) and clamp it on the fixed track; when it is necessary to push the clamping mechanism (20) into the edge of the material collection basket (12), the hook (46) is driven by the grabbing cylinder (45) to push the clamping mechanism (20) at the end of the fixed track (31).

9. The tail automatic support device for a drum drawing machine according to claim 8, characterized in that: A limit block is fixedly provided on the second bracket (43), and when the hook (46) pulls the clamping mechanism (20) into the grabbing arm (44), the limit block pushes the blocking rod (22) to rotate and retract.

10. An operating method of the tail automatic support device for a drum drawing machine according to claim 9, characterized in that: Here are the steps: Step 1: clamping a plurality of clamping mechanisms (20) on the fixed track (31) and the swing track (32) in sequence, and the clamping mechanisms (20) fill the entire track and abut against each other, and no clamping mechanism (20) is clamped on the joint (33). At this time, the front end of the swing track (32) is located above the right side of the material receiving position basket (12); Step 2: When the drawing process is about to end, the material collection basket (12) is switched from high-speed operation to slow-speed operation. When the detection device detects that the tail of the material is about to fall, the grabbing cylinder (45) at the fixed track (31) drives the hook (46) to push forward, thereby pushing the clamping mechanism (20) at the end of the fixed track (31) to move forward; Step 3: The clamping mechanisms (20) that are pressed against each other in sequence push the previous one one by one and move forward together. When a clamping mechanism (20) passes through the joint (33), the joint rotates to make the swing track (32) slightly move to the lower left and overlap the material receiving position basket (12). Then, the frontmost clamping mechanism (20) on the swing track (32) is pushed away from the swing track under the action of the driving force and clamped on the edge of the material receiving position basket (12). That is, all the clamping mechanisms (20) move forward by the displacement of one clamping mechanism, and the end of the fixed track (31) is vacant. Step 4: The material basket (12) at the receiving position is operated together with the clamping mechanism (20). When the clamping mechanism (20) is turned to the shifting mechanism, the driving cylinder (26) in the shifting mechanism drives the shifting block (25) to move downward, and the inclined surface of the shifting block (25) blocks the blocking rod (22). The material basket at the receiving position still drives the elastic clamping claw (21) to continue to rotate, and the blocking rod (22) is shifted out, that is, the blocking rod (22) and the elastic clamping claw (21) form an angle of 90 degrees, and the falling material tail (19) just falls on the blocking rod (22); Step 5: The material basket circulation system (11) of the drawing machine starts to run, all the material baskets move forward one station, the material basket at the preparation position (13) enters the material discharge position, and the material basket at the middle position (15) enters the material preparation position, that is, the material basket with the clamping mechanism (20) enters the material preparation position to become the material basket at the preparation position. With the cooperation of the rotation of the material preparation table, the tail of the material on the stop rod (22) is automatically introduced into the automatic straightening machine; Step 6: The rotary cylinder (42) of the grabbing mechanism (40) drives the second bracket (43) to rotate around the rotating shaft, so that the grabbing arm (44) overlaps the material basket (13) at the material preparation position, and the material basket (13) at the material preparation position rotates, so that the grabbing arm (44) is inserted into the clamping mechanism (20) of the material preparation position basket. At the same time, the hook (46) is driven by the grabbing cylinder (45) to hook the clamping mechanism and pull the clamping mechanism away from the material preparation position basket (13), so that the clamping mechanism (20) is clamped on the grabbing arm (44). During this process, the blocking rod (22) is rotated and retracted under the push of the limit block; Step 7: The rotary cylinder (42) drives the second bracket (43) to rotate around the rotating shaft again, so that the grabbing arm returns to the initial position, that is, the grabbing arm (44) is overlapped on the fixed track (31), and the gripping cylinder (45) pushes the clamping mechanism (20) on the grabbing arm, so that the clamping mechanism (20) enters the empty space on the fixed track (31), and finally the material tail automatic support device is in a standby state; this cycle is repeated to automatically complete the grabbing action of the material tail (19).

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