Coil Buffer System, Automatic Coil Retrieval Method

Abstract

The coil storage system is used to solve the problem that the coil placement in the prior art is not convenient for the manipulator to pick up. The coil storage system includes a limit frame and a vehicle frame. A support assembly is provided on the vehicle frame, and a wheel set is provided on the vehicle frame. The limit frame is used to limit and position the vehicle frame. A first sensor for detecting whether the vehicle frame is in place is provided on the limit frame. The support assembly includes two oppositely arranged adjustable support mechanisms. The beneficial effect is that it is used to pre-store coils, facilitating the automatic picking up by the manipulator. The coil automatic picking up method uses the above coil storage system, which is conducive to automatically identifying whether the feeding preparation is completed.

Description

Technical Field

[0001] The present invention relates to the technical field of automated processing equipment, and more particularly to a coil buffer system and a method for automatically retrieving coils. Background Art

[0002] Coils are raw materials often used in processing and production, such as PVC coils, paper coils, leather coils, etc. Taking the PVC coil as an example, a PVC coil refers to a coil of PVC film. The main component of the PVC film is polyvinyl chloride, which is an important packaging material. In the process of automated packaging operations, PVC coils are an important consumable. A PVC coil includes a coil center tube located at the center and a PVC film wound around the coil center tube.

[0003] During the packaging operation of an automated production line, a manipulator is required to retrieve the PVC coil, and then the manipulator is used to replace the coil on the production line equipment. During the process of the manipulator retrieving the PVC coil, in order not to affect the insertion of the coil center tube onto the support shaft (exposing both ends of the coil center tube to facilitate the insertion of the support shaft), the grasping work is usually carried out from both sides of the PVC coil. For this kind of coil replacement work in an automated production line, if the PVC coil is directly placed horizontally on the plane around the manipulator, due to the pressure exerted by the PVC coil on the plane surface, the PVC coil will deform under the reaction force of this pressure; this extrusion method is called bottom extrusion deformation. If the manipulator uses the method of squeezing inward from both sides for picking up, during the lifting process of the PVC coil, the bottom extrusion deformation of the PVC coil will gradually disappear, which is likely to cause a change in the size of the PVC coil in the direction of the clamping force of the manipulator, and thus is not conducive to the stable clamping of the PVC coil. If an inclusive picking method is adopted, it is not conducive to the gripper of the manipulator reaching the bottom of the PVC coil.

[0004] The above problems not only exist in the process of picking up PVC coils, but also exist in some other types of coils.

[0005] Therefore, the first placement method in the above situation is not conducive to the picking up of coils by the manipulator.

[0006] To further detail the above technical problems through a manipulator with a specific structure, the Chinese patent with the application number 2021106049986, which discloses a technical solution named "An Automatic Material Changing Robot". The coil clamping method refers to the Figure 6——Since the distance between the lower ends of the two opposite clamping rods 4 is much smaller than the diameter of the new material roll 6 (material roll), it is possible to pick up the material roll. This picking method is the inclusive picking method mentioned above. In this picking method, if the material roll is placed on a plane, it is very easy to damage the material roll during the picking process and it is also very difficult to pick up. The above problems can be summarized as the problem that the placement of the material roll in the prior art is not convenient for the manipulator to automatically pick up. Summary of the Invention

[0007] The purpose of the present invention is to provide a material roll buffer system for solving the problem that the placement of the material roll in the prior art is not convenient for the manipulator to pick up.

[0008] The technical solution adopted by the material roll buffer system to solve its technical problems is as follows:

[0009] The material roll buffer system includes a limit frame and a vehicle frame. A support assembly and a wheel set are provided on the vehicle frame. The limit frame is used to limit and position the vehicle frame. A first sensor for detecting whether the vehicle frame is in place is provided on the limit frame. The support assembly includes two relatively arranged adjustable support mechanisms. The adjustable support mechanism includes a swing arm. A plug member is provided on the inner side of the swing arm. The plug member is used for plugging into the end of the central tube of the material roll. The swing arm is rotatably arranged in the adjustable support mechanism. The plug member can swing with the swing arm where it is located. The rotation axis of the swing arm in the adjustable support mechanism is perpendicular to the orientation of the plug member. A limiting member is provided in the adjustable support mechanism. The limiting member is used to limit the extreme position of the inward swing of the swing arm. A second sensor is provided on the adjustable support mechanism. The second sensor is used to detect whether the swing arm is in the extreme position of the inward swing;

[0010] When the swing arm is in the extreme position of the inward swing, the plug member located on the swing arm is horizontally arranged.

[0011] The beneficial effects are as follows:

[0012] It is convenient for the robot to support and take the material roll. When the material roll carried on the present invention is picked up by the robot, it is convenient to automatically release the material roll as the picking action is performed. The use method of the present invention is to pre-place the material roll on the support assembly first, so as to prepare for the robot on the production line to take it. In the process of the robot picking up the material roll located on the present invention, when the material roll is picked up upward, the pressure of the center tube of the material roll on the plug component will gradually be released, and gradually converted into an upward lifting of the plug component. The lifting action causes the swing arm to flip outward, thereby causing the plug component to detach from the end of the center tube of the material roll, thereby realizing the automatic release of the support. If the robot adopts the method of squeezing inward from both sides to pick up the material roll from the present invention, then before picking up, the outer circumferential direction of the material roll pre-placed on the support assembly is not under pressure, so it is convenient for the robot to clamp the material roll from both sides, thereby facilitating stable clamping work. If the manipulator adopts an inclusive picking method, the manipulator is convenient to go around the lower side of the material roll supported on the support assembly, which is conducive to protecting the material roll when performing the inclusive picking work. At the same time, the material roll caching system is also convenient for cooperating with the manipulator to perform automated material roll retrieval work - it is convenient for the control system to judge whether the material roll caching system is ready for loading through the feedback signals of the first sensor and the second sensor, thereby facilitating the automated material retrieval work.

[0013] Furthermore, the adjustable supporting mechanism comprises an elastic element, the swing arm is connected to the elastic element, and the elastic element is used to make the swing arm have a tendency to swing outwards.

[0014] The beneficial effect is that when the robot on the production line takes the material roll pre-stored in the present invention, once the material roll is lifted upward, the swing arm will swing outward quickly under the action of the elastic element, thereby facilitating the plug component to quickly detach from the center tube of the material roll.

[0015] Furthermore, the adjustable supporting mechanism comprises a connecting frame, the connecting frame is fixedly connected to the vehicle frame, and the swing arm is rotatably connected to the connecting frame.

[0016] Furthermore, a rotating shaft is provided on the swing arm, the rotating shaft cooperates with a bearing, the bearing is arranged on a bearing seat, and the bearing seat is fixedly connected to the connecting frame.

[0017] The beneficial effect is that it is conducive to the stable support and smooth swing of the swing arm.

[0018] Furthermore, the adjustable support mechanism comprises a support rod, which is arranged on the outside of the swing arm, and the support rod can be used to lock the swing arm at an extreme position of inward swinging;

[0019] The adjustable support mechanism includes a fixedly arranged guide frame and a fixedly arranged limit plate. The support rod is slidably connected to the guide frame and rotatably connected to the guide frame. The support rod can slide in the inner and outer directions. A side rod is connected to the support rod and extends in the side direction of the support rod. The limit plate is located on the side of the support rod and faces the support rod. A first notch is provided on the limit plate, and the upper end of the first notch is open.

[0020] When the side rod is located in the first notch, the support rod locks the swing arm at the limit position of swinging inward.

[0021] An auxiliary plate is provided at the outer end of the support rod, and a photoelectric switch is provided on the adjustable mechanism. The auxiliary plate is used to adjust the reception of the feedback signal of the photoelectric switch.

[0022] The beneficial effects are as follows: It is beneficial to reduce the difficulty of pre-storing the coil on the present invention. When the coil is still lifted by an external force due to factors other than the present invention (lifted by other equipment or personnel), the coil is not pressed on the plug member, and the swing arm still has a great tendency to swing outward especially under the action of the elastic element. At this time, the position of the swing arm is locked by the support rod, which is beneficial for the support rod to be maintained in the center cylinder of the coil at this end, and then it is beneficial to free up hands to install the other support rod in place at the other end of the coil center cylinder. It is beneficial to indirectly feedback the locking situation of the swing arm in the support assembly through the detection signal of the photoelectric switch, and the detection signal of the photoelectric switch can be used in the automatic control process.

[0023] Further, a second notch is provided on the limit plate. The second notch is located outside the first notch and can be used to place the side rod.

[0024] The beneficial effect is: It is convenient to maintain the support rod in the state of releasing the locking of the swing arm.

[0025] Further, a baffle is connected to the plug member. The plug member extends towards the inner side of the baffle, and the inner end of the plug member is hemispherical.

[0026] The beneficial effects are: The baffle is beneficial for limiting the coil center cylinder and preventing the coil center cylinder from slipping. The plug member being hemispherical is beneficial for the smoothness of the automatic release action of taking the material.

[0027] Further, each of the second sensors is communicatively connected to the controller, and the controller is communicatively connected to the feeding prompt device. When all the second sensors detect that the corresponding swing arm is not in the limit position of swinging inward, the feeding prompt device gives a prompt.

[0028] The beneficial effect is: It is convenient to carry out the automatic coil replenishment work.

[0029] The method for automatically retrieving a coil uses the above-mentioned coil buffer system, and a manipulator is used to retrieve the coil located on the support assembly.

[0030] The signal logic condition for the support assembly to be able to have the coil it carries retrieved is that the first sensor detects that the vehicle frame is in place and each second sensor in the same group of support assemblies detects that the corresponding swing arm is in the limit position of swinging inward.

[0031] The beneficial effect is that it is conducive to automatically judging whether the feeding preparation has been completed during the automatic control process.

[0032] The method for automatically retrieving a coil uses a manipulator and the above-mentioned coil buffer system, and a manipulator is used to retrieve the coil located on the support assembly.

[0033] The signal logic condition for the support assembly to be able to have the coil it carries retrieved is that the first sensor detects that the vehicle frame is in place and each second sensor in the same group of support assemblies detects that the corresponding swing arm is in the limit position of swinging inward, and the photoelectric switch detects that the auxiliary plate is in the state where the side rod is removed from the first slot.

[0034] The beneficial effect is that it is conducive to automatically judging whether the coil feeding preparation has been completed during the automatic control process. Description of the Drawings

[0035] Figure 1 It is a schematic diagram of an embodiment of the present invention;

[0036] Figure 2 It is a schematic diagram of the vehicle frame;

[0037] Figure 3 It is a front view schematic diagram of the adjustable support mechanism;

[0038] Figure 4 It is a top view schematic diagram of the adjustable support mechanism;

[0039] Figure 5 For Figure 4 the F-F cross-sectional schematic diagram of;

[0040] Figure 6 For Figure 4 the G-G cross-sectional schematic diagram of;

[0041] Figure 7 It is a schematic diagram of the placement method of the coil on a group of support assemblies;

[0042] Figure 8 For Figure 7 the enlarged view of part H in;

[0043] Figure 9 It is a schematic diagram of the principle of the feeding prompt;

[0044] In the figure: 1 swing arm, 11 rotating shaft, 12 plug member, 13 baffle plate, 14 first hanging ring, 2 connecting frame, 21 limiting member, 22 bearing, 23 bearing seat, 24 guiding frame, 25 limiting plate, 251 first notch, 252 second notch, 253 second hanging ring, 26 bolt group, 27 fixing plate, 28 support, 3 elastic element, 4 vehicle frame, 41 universal wheel, 5 support rod, 51 side rod, 52 auxiliary plate, 6 coil, 61 coil central cylinder, 7 limiting frame. Detailed implementation manner

[0045] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0046] Such as Figure 1As shown in the figure, the coil buffer system includes a limit frame 7 and a vehicle frame 4. When in use, the limit frame 7 is fixedly connected to the workshop floor through anchor bolts. The vehicle frame is provided with a support assembly and a wheel set. The wheel set is used to facilitate the transfer work of the vehicle frame. For example, at the stacking place of coils, the coils are installed on the corresponding support assembly, and then the installed coils are transferred to the vicinity of the automated production line by the vehicle frame 4 for the manipulator on the automated production line to pick up. Four universal wheels 41 are arranged at the bottom of the vehicle frame to form the wheel set, and two of the universal wheels 41 are equipped with universal wheel locking devices, which can be used to lock the corresponding universal wheels. The limit frame 7 is used to limit and position the vehicle frame 4. The bottom of the vehicle frame 4 is rectangular, and the bottom of the limit frame 7 is rectangular with one end open. The opening at the bottom of the limit frame 7 is used to push in the vehicle frame 4. The limit frame 7 is provided with a first sensor 71 for detecting whether the vehicle frame 4 is in place. The support assembly includes two oppositely arranged adjustable support mechanisms, and an adjustable support mechanism is arranged at each of A, B, C, and D. Among them, the adjustable support mechanisms located at A and B form a set of support assemblies; the adjustable support mechanisms located at C and D form another set of support assemblies. The adjustable support mechanism includes a swing arm 1. A plug member 12 is arranged inside the swing arm 1, and the plug member 12 is used to plug into the end of the coil core tube. The swing arm 1 is rotatably arranged in the adjustable support mechanism, and the plug member 12 can swing with the swing arm 1 where it is located. The rotation axis of the swing arm 1 in the adjustable support mechanism is perpendicular to the orientation of the plug member 12. A limiting member 21 is arranged in the adjustable support mechanism. The limiting member 21 is used to limit the extreme position of the inward swing of the swing arm 1. The adjustable support mechanism is provided with a second sensor, which is used to detect whether the swing arm 1 is in the extreme position of inward swing. A second sensor connecting frame can be welded and fixed on the bracket 28. The second sensor connecting frame is used to connect the second sensor. The second sensor can be an optoelectronic sensor, and the second sensor is arranged opposite to the corresponding swing arm 1. When the swing arm 1 is in the extreme position of inward swing, the plug member 12 located on the swing arm 1 is horizontally arranged.

[0047] As Figures 2 to 6As shown, the adjustable support mechanism includes a swing arm 1. A plug member 12 is provided on the swing arm 1, and the plug member 12 is rotatably arranged on the corresponding swing arm 1. The orientation of the plug member 12 is fixed relative to the swing arm 1. The swing arm 1 is rotatably arranged in the adjustable support mechanism, and the rotation axis of the swing arm 1 in the adjustable support mechanism is perpendicular to the orientation of the plug member 12. A rotating shaft 11 is provided on the swing arm 1, and the rotating shaft 11 is fixedly connected to the swing arm 1. The axis of the rotating shaft 11 is the rotation axis of the swing arm 1 in the adjustable support mechanism, and the axis of the rotating shaft 11 is perpendicular to the orientation of the plug member 12. The rotating shaft 11 is engaged with a bearing 22, the bearing 22 is arranged on a bearing seat 23, and the bearing seat 23 is fixedly connected to a connecting frame 2. The adjustable support mechanism includes a connecting frame 2, which is fixedly connected to a vehicle frame 4, and the swing arm 1 is rotatably connected to the connecting frame 2. A limiting member 21 is provided in the adjustable support mechanism, and the limiting member 21 is used to limit the extreme inward swing position of the swing arm 1 - a bracket for supporting the limiting member 21 is fixedly connected to the connecting frame, and a rod is used as the limiting member 21, and the limiting member 21 spans across the inner side of the swing arm 1. When the swing arm (1) is in the extreme inward swing position, the plug member 12 on the swing arm 1 is horizontally arranged.

[0048] As Figure 7 and Figure 8 shown, when the present invention is in use, the carried coil 6 includes a coil center tube 61. The inner diameter of the coil center tube 61 is larger than the outer diameter of the plug member 12. One way to install the coil 6 onto the support assembly is as follows: by means of a lifting device in cooperation with manual labor or all manual labor, adjust the orientation and height of the coil center tube 61 to a suitable position → manually swing each swing arm 1 inward, so that the plug member 12 is horizontal and inserted into the end of the coil center tube 61 → release the coil 6 → under the action of the self-weight of the coil, the upper side of the inner circle of the coil center tube 61 presses on the upper side of the plug member 12, which causes the swing arm 1 to maintain at the extreme inward turning position, and thus maintains the coil center tube 61 in a lifted state, that is, maintains the coil 6 in a lifted state.

[0049] As Figures 1 to 8As shown, the beneficial effect of the coil buffer system is that it facilitates the manipulator to support and pick up the coil. During the process of the coil carried on the present invention being picked up by the manipulator, it is conducive to automatically releasing the coil along with the picking action. The usage method of the present invention is to first pre-place the coil on the support assembly for the manipulator on the production line to pick up. During the process of the manipulator picking up the coil 6 on the present invention, when the coil 6 is picked up upward, the pressure of the coil central tube 61 on the plug member 12 will be gradually released and gradually converted into an upward lift on the plug member 12. This lifting action causes the swing arm 1 to flip outward, and then the plug member 12 disengages from the end of the coil central tube, thereby realizing the automatic release of the support. If the manipulator picks up the coil from the present invention by squeezing inward from both sides, then before picking up, since the outer circumferential direction of the coil pre-placed on the support assembly does not bear pressure, it is conducive for the manipulator to clamp the coil 6 firmly from both sides, and thus conducive to stable clamping work. If the manipulator adopts an inclusive picking method, then the manipulator is conducive to going around to the lower side of the coil supported on the support assembly, and is conducive to protecting the coil during the inclusive picking work. At the same time, the coil buffer system also facilitates the automated coil picking work in cooperation with the manipulator - it is conducive for the control system to judge whether the coil buffer system is ready for feeding through the feedback signals of the first sensor and the second sensor, thereby facilitating the automated picking work. The automated coil picking method, for example, one picking method is: using the above-mentioned coil buffer system, and picking up the coil located on the support assembly through the manipulator; the signal logic condition for the support assembly to be able to pick up the carried coil is: the first sensor detects that the vehicle frame is in place and each second sensor in the same group of support assemblies detects that the corresponding swing arm is in the limit position of swinging inward. This is conducive to carrying out automated control work.

[0050] As Figure 2 shown, the adjustable support mechanism includes an elastic element 3. The swing arm 1 is connected to the elastic element 3, and the elastic element 3 is used to make the swing arm 1 have a tendency to swing outward. A tension spring is used as the elastic element 3. A first hanging ring 14 is provided on the swing arm 1, and a second hanging ring 253 is connected to the limit plate 25. The limit plate is fixedly connected to the connecting frame 2. One end of the elastic element 3 is connected to the first hanging ring 14, and the other end of the elastic element 3 is connected to the second hanging ring 253. When the manipulator on the production line picks up the coil pre-stored on the present invention, once the coil is lifted upward, under the action of the elastic element 3, the swing arm will quickly swing outward, which is conducive to the plug member quickly disengaging from the coil central tube.

[0051] As Figures 2 to 6As shown, the adjustable support mechanism includes a support rod 5. The support rod 5 is arranged outside the swing arm 1 and can be used to lock the swing arm 1 at the limit position of swinging inward. This helps to reduce the difficulty of pre-storing the coil on the present invention. When the coil is still lifted by an external force (lifted by other equipment or personnel except the present invention), the coil is not pressed on the plug member. The swing arm, especially under the action of the elastic element, still has a great tendency to swing outward. At this time, locking the position of the swing arm through the support rod helps the support rod to maintain at the center of the coil central cylinder at this end, and then helps to free up hands to install the other support rod in place at the other end of the coil central cylinder. The locking of the support rod 5 on the swing arm also helps to effectively avoid the problem of the swing arm 1 swinging outward during the transportation of the mobile vehicle frame. Furthermore, it helps to ensure the stability of the coil placed on the support assembly during the transportation of the coil with the vehicle frame.

[0052] As Figures 2 to 6 shown, the adjustable support mechanism includes a fixedly arranged guide frame 24 and a fixedly arranged limit plate 25. The support rod 5 is slidably connected to the guide frame 24. Taking the two adjustable support mechanisms in the same group of support assemblies as a reference to define inside and outside, and regarding these two adjustable support mechanisms as two mass points, the inside and outside direction refers to the direction parallel to the connection line of these two adjustable support mechanisms. Among them, the area between these two adjustable support mechanisms is the inside. The support rod 5 can slide along the inside and outside direction. A side rod 51 is connected to the support rod 5 and extends in the side direction of the support rod 5. The limit plate 25 is located on the side of the support rod 5 and faces the support rod 5. A first notch 251 is provided on the limit plate 25, and the upper end of the first notch 251 is open. The support rod 5 is rotatably connected to the guide frame 24. When the side rod 51 is located in the first notch 251, the support rod 5 locks the swing arm 1 at the limit position of swinging inward. This helps to firmly lock the swing arm at the limit position of swinging inward.

[0053] As Figures 2 to 6As shown, an auxiliary plate 52 is provided at the outer end of the support rod 5. The auxiliary plate 52 is used to adjust the reception of the feedback signal of the photoelectric switch. The reception of the feedback signal of the photoelectric switch is used to reflect the position of the support rod 5, or to reflect whether the support rod 5 is in a state of locking the swing arm. A necessary condition for the present invention to ensure that the coil is taken by the manipulator is that the support rod 5 releases the locking of the swing arm. In the process of automatic control, the photoelectric switch is used to timely feedback this conditional state. A second notch 252 is provided on the limit plate 25. The second notch 252 is located outside the first notch 251. The second notch 252 can be used to place the side rod 51. A double-headed photoelectric switch is adopted. The double-headed photoelectric switch refers to a type of photoelectric switch including a light emitting head and a light receiving head. The light emitting head is arranged on one side of the auxiliary plate 52, and the light receiving head is arranged on the other side of the auxiliary plate 52. When the side rod 51 is in the first notch 251, the auxiliary plate 52 is at a position where the optical path between the light receiving head and the light emitting head is not blocked, that is, the feedback of the photoelectric switch is that there is a feedback signal; when the side rod 51 is in the second notch 252, the locking is released, and the auxiliary plate is at a position where the optical path between the light receiving head and the light emitting head is blocked, that is, the feedback of the photoelectric switch is that there is no signal feedback. Thus, it is used to feedback whether the locking is released.

[0054] As Figures 2 to 6 shown, a baffle 13 is connected to the plug member 12. The plug member 12 extends towards the inner side of the baffle 13, and the inner end of the plug member 12 is hemispherical. This is beneficial for quickly releasing the coil and avoiding scratching the central cylinder of the coil by the inner end of the plug member 12.

[0055] As Figure 9 shown, each second sensor is communicatively connected to the controller, and the controller is communicatively connected to the feeding prompt device. When all the second sensors detect that the corresponding swing arm is not in the limit position of swinging inward, the feeding prompt device gives a prompt. An alarm can be used as the feeding prompt device, and the alarm sound of the alarm can be used as the feeding prompt. The feeding prompt work can also be carried out through the human-machine interaction interface of the industrial control computer or computer. This is convenient for automatically and timely carrying out the feeding reminder work in the process of batch production.

Claims

1. A coil buffer system, characterized in that, It includes a limit frame and a vehicle frame (4). A support assembly and a wheel set are provided on the vehicle frame (4). The limit frame is used to limit and position the vehicle frame (4). A first sensor for detecting whether the vehicle frame (4) is in place is provided on the limit frame. The support assembly includes two oppositely arranged adjustable support mechanisms. The adjustable support mechanism includes a swing arm (1). A plug member (12) is provided on the inner side of the swing arm (1). The plug member (12) is used to be inserted into the end of the core tube of the coil. The swing arm (1) is rotatably arranged in the adjustable support mechanism. The plug member (12) can swing with the swing arm (1) where it is located. The rotation axis of the swing arm (1) in the adjustable support mechanism is perpendicular to the orientation of the plug member (12). A limiting member (21) is provided in the adjustable support mechanism. The limiting member (21) is used to limit the extreme position of the inward swing of the swing arm (1). The adjustable support mechanism is provided with a second sensor. The second sensor is used to detect whether the swing arm (1) is in the extreme position of inward swing; when the swing arm (1) is in the extreme position of inward swing, the plug member (12) located on the swing arm (1) is horizontally arranged; The adjustable support mechanism includes an elastic element (3). The swing arm (1) is connected to the elastic element (3). The elastic element (3) is used to make the swing arm (1) have a tendency to swing outward; The adjustable support mechanism includes a support rod (5). The support rod (5) is arranged on the outer side of the swing arm (1). The support rod (5) can be used to lock the swing arm (1) at the extreme position of inward swing; An auxiliary plate (52) is provided at the outer end of the support rod (5). The adjustable support mechanism is provided with a photoelectric switch. The auxiliary plate (52) is used to adjust the reception of the feedback signal of the photoelectric switch.

2. The coil buffer system according to claim 1, characterized in that, The adjustable support mechanism includes a connecting frame (2). The connecting frame (2) is fixedly connected to the vehicle frame (4). The swing arm (1) is rotatably connected to the connecting frame (2).

3. The coil buffer system according to claim 2, characterized in that A rotating shaft (11) is provided on the swing arm (1). The rotating shaft (11) cooperates with a bearing (22). The bearing (22) is arranged on a bearing seat (23). The bearing seat (23) is fixedly connected to the connecting frame (2).

4. The coil buffer system according to claim 1, characterized in that, The adjustable support mechanism includes a fixedly arranged guide frame (24) and a fixedly arranged limiting plate (25). The support rod (5) is slidably connected to the guide frame (24). The support rod (5) can slide in the inner and outer directions. A side rod (51) is connected to the support rod (5). The side rod (51) extends in the side direction of the support rod (5). The limiting plate (25) is located on the side of the support rod (5). The limiting plate (25) faces the support rod (5). A first notch (251) is provided on the limiting plate (25). The upper end of the first notch (251) is open; when the side rod (51) is located in the first notch (251), the support rod (5) locks the swing arm (1) at the extreme position of inward swing.

5. The coil buffer system according to claim 4, characterized in that, The limiting plate (25) is provided with a second notch (252) which is located outside the first notch (251), and the second notch (252) can be used to place the side rod (51).

6. The coil buffer system according to claim 1, characterized in that, A baffle (13) is connected to the plug member (12). The plug member (12) extends towards the inner side of the baffle (13), and the inner end of the plug member (12) is hemispherical.

7. The coil buffer system according to claim 1, characterized in that, Each of the second sensors is communicatively connected to a controller, and the controller is communicatively connected to a feeding prompt device. When all the second sensors detect that the corresponding swing arms are not in the limit position of swinging inwards, the feeding prompt device gives a prompt.

8. Method for automatically retrieving a material roll, characterized in that, Using a manipulator and a coil storage system according to any one of claims 1-7, the manipulator is used to pick up a coil located on the support assembly; the signal logic condition for the support assembly to be able to have the carried coil picked up is that the first sensor detects that the vehicle frame (4) is in place and each second sensor in the same group of support assemblies detects that the corresponding swing arm (1) is in the limit position of swinging inwards.

9. A method for automatically taking a material roll, characterized in that: Using a manipulator and a coil storage system according to claim 5, the manipulator is used to pick up a coil located on the support assembly; the signal logic condition for the support assembly to be able to have the carried coil picked up is that the first sensor detects that the vehicle frame (4) is in place and each second sensor in the same group of support assemblies detects that the corresponding swing arm (1) is in the limit position of swinging inwards and the photoelectric switch detects that the auxiliary plate (52) is in the corresponding state where the side rod (51) is removed from the first notch (251).

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