Automatic feeding method

Abstract

The automatic feeding method comprises the specific working steps that firstly, a first material shaft is located at a working position, a first gear of the first material shaft is meshed with a second gear, a driving motor drives the first material shaft to rotate to conduct discharging operation, and a second material shaft is located at a feeding port; secondly, a material head of a second material shaft is clamped to a head material clamping translation mechanism; 3, when a tailing detection mechanism detects that the first material shaft unrolls to the tailing, a head material clamping and translation mechanism drives a head material of a second roll material in a second material shaft to move forwards, meanwhile, a material roll pushing mechanism pushes the second material shaft to a working station, and a first gear of the second material shaft is meshed with a second gear; and fourthly, the second material shaft ejects the first material shaft to the tail end of the unwinding frame. According to the method, through the arrangement of the material roll pushing mechanism, the head material clamping and translating mechanism and the limiting mechanism, automatic non-stop feeding can be achieved, and therefore the production efficiency of products is improved while manual work is reduced.

Description

Technical Field

[0001] The present invention relates to the field of cutting equipment, and particularly relates to an automatic feeding method. Background Art

[0002] EVA (abbreviation for ethylene-vinyl acetate copolymer) film is an important component of photovoltaic cells. Its function is to paste the cells of photovoltaic cell modules on the bottom plate and paste tempered glass on the cells. EVA film is often used in rolls and is cut into thin sheets equivalent to the area of photovoltaic cell modules during use.

[0003] When the existing EVA film cutting machine feeds materials, it is necessary to manually remove the air shaft, install a new material roll, and then manually pull the material head of the new material roll to a specified position, thus having the problem of inconvenient feeding. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide an automatic feeding mechanism for a parallel dual-axis hot melt cutting machine, which can realize automatic feeding of material rolls.

[0005] The technical solution adopted by the present invention to solve its technical problem is: an automatic feeding method,

[0006] The specific working steps are as follows:

[0007] Step 1: The first material shaft is in the working position, the first gear of the first material shaft meshes with the second gear, and the driving motor drives the first material shaft to rotate for unwinding operation. The second material shaft is at the feeding port;

[0008] Step 2: Clamp the material head of the second material shaft at the head material clamping and translation mechanism;

[0009] Step 3: When the tail material detection mechanism detects that the first material shaft unwinds to the tail material, the head material clamping and translation mechanism drives the head material of the second roll in the second material shaft to move forward. At the same time, the material roll pushing mechanism pushes the second material shaft to the working position, and the first gear of the second material shaft meshes with the second gear;

[0010] Step 4: The second material shaft ejects the first material shaft to the end of the unwind rack.

[0011] Furthermore: It includes a frame, an unwind rack, and a first material shaft and a second material shaft arranged on the unwind rack. The frame is also provided with a head material clamping and translation mechanism;

[0012] One end of the first material shaft and the second material shaft is the driving end, and the other end of the first material shaft and the second material shaft is the limiting end. First gears are arranged at the driving ends of the first material shaft and the second material shaft. A second gear for meshing with the first gear is further arranged on the machine frame. A driving motor for driving the second gear to rotate is also included. A limiting mechanism for limiting the limiting end and a material pushing and coiling mechanism for pushing the second material shaft to the working position are further arranged on the machine frame;

[0013] A tail material detection mechanism for detecting tail material is further arranged on the machine frame.

[0014] Furthermore: The material pushing and coiling mechanism includes a first mounting plate and a second mounting plate mounted on the machine frame. First rotating wheels and second rotating wheels are mounted on both the first mounting plate and the second mounting plate. A belt is sleeved on the first rotating wheels and the second rotating wheels. A first driving motor for driving the first rotating wheel or the second rotating wheel to rotate is further included. The material pushing and coiling mechanism is mounted on the belt;

[0015] The first driving motor drives the first rotating wheel or the second rotating wheel to rotate. The belt moves around the first rotating wheel and the second rotating wheel, and the material pushing and coiling mechanism moves horizontally following the belt.

[0016] Furthermore: A driving frame mounted on the belt is further included. A pushing block is further included. The pushing block consists of a pushing part located at the upper part and a limiting part located at the lower part. The middle part of the pushing block is rotatably connected to the driving frame. The limiting part includes a groove recessed inward. A protruding part for extending into the groove is arranged on the driving frame. The weight of the limiting part is greater than the weight of the pushing part;

[0017] During the pushing process, the pushing block rotates counterclockwise along the rotating mounting part. The second material shaft can enter the unwinding frame through the pushing block. Since the weight of the limiting part is greater than the weight of the pushing part, the pushing block rotates clockwise and returns to the vertical state. Since the protruding part is located in the groove, the pushing block cannot continue to rotate, thus maintaining the vertical state. Under the action of the first driving motor, the pushing block pushes the second material shaft forward to the working position.

[0018] Furthermore: The limiting mechanism includes a supporting block and a limiting arc-shaped block correspondingly arranged at the working position. A first driving cylinder for driving the limiting arc-shaped block to move downward and a second driving cylinder for driving the supporting block to move upward are further included;

[0019] When the first material shaft or the second material shaft moves to the working position, the limiting end of the first material shaft or the second material shaft is limited between the arc-shaped block and the supporting block.

[0020] Further: The headstock clamping and translation mechanism includes a first clamping block and a second clamping block connected by a push-pull clamp. A first limit block and a second limit block that can slide on the first clamping block are sleeved on the first clamping block;

[0021] A horizontal driving cylinder for driving the first clamping block to move horizontally is further provided on the frame;

[0022] A scale is provided on the surface of the first clamping block;

[0023] When clamping the stock head, adjust the positions of the first limit block and the second limit block, loosen the push-pull clamp, pass the stock head of the second material shaft through the gap between the first clamping block and the second clamping block, and then pull the push-pull clamp to lock it. When feeding, the horizontal driving cylinder drives the first clamping block to drive the stock head of the second coil forward.

[0024] Further: A receiving frame is provided at the bottom of the discharge end of the frame. A roller with a movement direction perpendicular to the movement direction from the feed inlet to the discharge outlet is provided on the receiving frame. A buffer block is provided on the side of the receiving frame facing the frame;

[0025] When the second material shaft is automatically fed, the first material shaft is pushed out onto the receiving frame by the second material shaft. When manually collecting the first material shaft, it can be taken out along the rolling direction of the roller.

[0026] Further: A lifting plate is provided at the feed inlet of the frame. A support seat is provided on the lifting plate. A positioning groove is provided on the support seat. A blocking protrusion is provided on the side of the support seat away from the frame. A third driving cylinder for driving the third lifting plate to move up and down is further included;

[0027] When a new feeding is carried out, the third driving cylinder drives the lifting plate to descend. A new coil is placed on the support block by an external forklift. The third driving cylinder drives the lifting plate to rise, and the operator pushes the new coil onto the unwinding rack.

[0028] The beneficial effect of the present invention is: By setting the material pushing and coiling mechanism, the headstock clamping and translation mechanism and the limiting mechanism, the automatic non-stop feeding can be realized, thereby reducing the manual work and improving the production efficiency of the product at the same time. Description of the Drawings

[0029] Figure 1 It is a flowchart of the automatic feeding method of the embodiment of the present application.

[0030] Figure 2 It is a structural schematic diagram of the automatic feeding mechanism of the embodiment of the present application.

[0031] Figure 3 It is a schematic diagram of the unwinding mechanism of the automatic feeding mechanism of the embodiment of the present application.

[0032] Figure 4 This is a schematic structural view of the receiving frame of the automatic feeding mechanism according to an embodiment of the present application.

[0033] Figure 5 This is a schematic structural view of the lifting support mechanism of the automatic feeding mechanism according to an embodiment of the present application.

[0034] Figure 6 This is a schematic structural view of the head material clamping and translation mechanism of the automatic feeding mechanism according to an embodiment of the present application.

[0035] Figure 7 This is a schematic structural view of the material pushing and coiling mechanism of the automatic feeding mechanism according to an embodiment of the present application.

[0036] The markings in the figure are:

[0037] Frame 1, first material shaft 2, second material shaft 3, first gear 4, drive motor 5, second gear 6, support block 7, limiting arc block 8, first driving cylinder 9, second driving cylinder 10, unwinding frame 11, receiving frame 12, roller 13, buffer block 14, lifting plate 15, support seat 16, positioning groove 17, blocking protrusion 18, third driving cylinder 19, head material clamping and translation mechanism 20, first clamping block 21, second clamping block 22, push-pull clamp 23, first limiting block 24, second limiting block 25, horizontal driving cylinder 26, scale 27, material pushing and coiling mechanism 28, second mounting plate 29, first rotating wheel 30, second rotating wheel 31, first driving motor 32, belt 33, driving frame 34, protruding part 35, pushing block 36, pushing part 37, limiting part 38, first mounting plate 39. Detailed implementation manners

[0038] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe in detail the specific implementation manners of the present invention with reference to the accompanying drawings.

[0039] As Figure 1 and Figure 2 shown, an embodiment of the present application discloses an automatic feeding method, which includes a frame 1, an unwinding frame 11, and a first material shaft 2 and a second material shaft 3 provided on the unwinding frame 11. A head material clamping and translation mechanism 20 is further provided on the frame 1;

[0040] One end of the first material shaft 2 and the second material shaft 3 is a driving end, and the other end of the first material shaft 2 and the second material shaft 3 is a limiting end. The driving ends of the first material shaft 2 and the second material shaft 3 are both provided with a first gear 4. The frame 1 is also provided with a second gear 6 for meshing with the first gear 4, and also includes a driving motor 5 for driving the second gear 6 to rotate. The frame 1 is also provided with a limiting mechanism for limiting the limiting end and a material pushing roll mechanism 28 for pushing the second material shaft 3 to the working position;

[0041] The frame 1 is also provided with a tailing detection mechanism for detecting tailings;

[0042] The specific working steps are:

[0043] Step 1: The first material shaft 2 is located at the working position, the first gear 4 of the first material shaft 2 is meshed with the second gear 6, the driving motor 5 drives the first material shaft 2 to rotate to perform the material discharge operation, and the second material shaft 3 is located at the material inlet;

[0044] Step 2: Clamp the material head of the second material shaft 3 at the material head clamping translation mechanism 20;

[0045] Step 3: When the tail material detection mechanism detects that the first material shaft 2 is unwound to the tail material, the head material clamping translation mechanism 20 drives the head material of the second roll material in the second material shaft 3 to move forward, and at the same time, the material pushing roll mechanism 28 pushes the second material shaft 3 to the working position, and the first gear 4 of the second material shaft 3 is meshed with the second gear 6;

[0046] Step 4: The second material shaft 3 pushes the first material shaft 2 out to the rear end of the unwinding frame 11.

[0047] It should be explained that the above-mentioned tail material detection mechanism can be an infrared sensor, an ultrasonic sensor, a visual probe, etc. The above-mentioned drive motor 5 is installed on the frame 1, and the second gear 6 is installed on the output shaft of the drive motor 5.

[0048] By setting the material pushing roll mechanism 28, this structure can automatically push the second material shaft 3 to the working position, so that the first gear 4 on the second material shaft 3 is meshed with the first gear 4 on the driving motor 5, so that the second material shaft 3 can be actively rotated to discharge the material. By setting the head material clamping and translation mechanism 20, the head material on the second material shaft 3 can be pulled forward to the specified position, and the manual operation only needs to be performed by a head material clamping action in advance. By setting the limiting mechanism, the first material shaft 2 and the second material shaft 3 can be positioned to prevent them from leaving the working position, so that this mechanism can realize automatic non-stop loading, thereby reducing manual work while also improving product production efficiency.

[0049] In this embodiment, Figure 7As shown, the pusher coil mechanism 28 includes a first mounting plate 39 and a second mounting plate 29 mounted on the frame 1. The first mounting plate 39 and the second mounting plate 29 are both provided with a first rotating wheel 30 and a second rotating wheel 31. A belt 33 is sleeved on the first rotating wheel 30 and the second rotating wheel 31. It also includes a first driving motor 32 for driving the first rotating wheel 30 or the second rotating wheel 31 to rotate. The pusher coil mechanism 28 is mounted on the belt 33.

[0050] Specifically, the output shaft of the first driving motor 32 can be connected to the first rotating wheel 30, and the output shaft of the first driving motor 32 can also be connected to the second rotating wheel 31.

[0051] During operation, the first driving motor 32 drives the first rotating wheel 30 or the second rotating wheel 31 to rotate, and the belt 33 moves around the first rotating wheel 30 and the second rotating wheel 31, so that the pusher coil mechanism 28 moves horizontally along with the belt 33.

[0052] The setting of this structure can drive the pusher coil mechanism 28 to move forward through the driving of the first driving motor 32, so as to realize the pushing effect on the second coil.

[0053] In this embodiment, it also includes a driving frame 34 mounted on the belt 33 and a pushing block 36. The pushing block 36 includes a pushing part 37 located at the upper part and a limiting part 38 located at the lower part. The middle part of the pushing block 36 is rotatably connected to the driving frame 34. The limiting part 38 includes an inwardly concave groove, and the driving frame 34 is provided with a protruding part 35 for extending into the groove. The weight of the limiting part 38 is greater than the weight of the pushing part 37.

[0054] During the pushing process, the pushing block 36 rotates counterclockwise along the rotating mounting part, and the second coil shaft 3 can enter the unwinding rack 11 through the pushing block 36. Since the weight of the limiting part 38 is greater than the weight of the pushing part 37, the pushing block 36 rotates clockwise and returns to the vertical state. Since the protruding part 35 is located in the groove, the pushing block 36 cannot continue to rotate, so it maintains the vertical state. Under the action of the first driving motor 32, the pushing block 36 pushes the second coil shaft 3 forward to the working position.

[0055] Specifically, the driving frame 34 includes a driving plate. A first adjusting plate is mounted on the driving plate. It also includes a second adjusting plate mounted on the first adjusting plate. The end of the first adjusting plate is provided with an arc structure, and the end of the arc structure is the protruding part 35. The middle part of the pushing block 36 is rotatably connected to the arc structure.

[0056] Specifically, waist-shaped slots are provided on both the driving board and the first adjusting board. Thus, the positions of the first adjusting board and the second adjusting board can be adjusted by the cooperation of bolts and the positions of the waist-shaped slots, so that the pushing block 36 can better push the second material shaft 3. At the same time, the pushing block 36 is designed in such a form that the weight of the limiting part 38 is greater than that of the pushing part 37 and the pushing block 36 can rotate. On the one hand, the pushing block 36 will not block the entry of the second material shaft 3 into the frame 1, and at the same time, the automatic reset of the pushing block 36 can be realized, enabling it to play the role of pushing the second material shaft 3 to move.

[0057] In this embodiment, as Figure 3 shown, the limiting mechanism includes a support block and a limiting arc block 8 correspondingly arranged at the working position, and further includes a first driving cylinder 9 for driving the limiting arc block 8 to move downward and a second driving cylinder 10 for driving the support block to move upward;

[0058] After the first material shaft 2 or the second material shaft 3 moves to the working position, the limiting end of the first material shaft 2 or the second material shaft 3 is limited between the arc block and the support block.

[0059] That is, when the first material shaft 2 or the second material shaft 3 is pushed to the working position, the second driving cylinder 10 drives the support block to move upward, and the first driving cylinder 9 drives the limiting arc block 8 to move downward, so that the limiting end of the first material shaft 2 or the second material shaft 3 is limited between the arc block and the support block, thereby preventing the first material shaft 2 or the second material shaft 3 from shifting in position during the working process.

[0060] In this structure, the support block and the limiting arc block 8 can limit the first material shaft 2 or the second material shaft 3, preventing the first material shaft 2 or the second material shaft 3 from being misaligned during the working process.

[0061] In this embodiment, as Figure 6 shown, the head material clamping and translation mechanism 20 includes a first clamping block 21 and a second clamping block 22 connected by a push-pull clamp 23. A first limiting block 24 and a second limiting block 25 that can slide on the first clamping block 21 are sleeved on the first clamping block 21;

[0062] A horizontal driving cylinder 26 for driving the first clamping block 21 to perform horizontal movement is further provided on the frame 1;

[0063] A scale 27 is provided on the surface of the first clamping block 21;

[0064] When clamping the stock head, adjust the positions of the first limit block 24 and the second limit block 25, loosen the push-pull clamp 23, pass the stock head of the second material shaft 3 through the gap between the first clamping block 21 and the second clamping block 22, and then pull the push-pull clamp 23 to lock it. When loading, the horizontal driving cylinder 26 drives the first clamping block 21 to drive the head stock of the second coil forward.

[0065] Specifically, the first limit block 24 and the second limit block 25 are fixed on the first clamping block 21 through the first locking knob and the second locking knob. That is, when adjusting the positions of the first limit block 24 and the second limit block 25, loosen the first locking knob and the second locking knob, and then, according to the width of the coil, cooperate with the scale 27 to adjust the positions of the first limit block 24 and the second limit block 25, and then tighten the first locking knob and the second locking knob.

[0066] The setting of this structure can realize the automatic loading operation. At the same time, the setting of the first limit block 24 and the second limit block 25 can realize the limit of the clamping position of the stock head of the second material shaft 3, making the clamping position of the stock head more accurate. At the same time, the first limit block 24 and the second limit block 25 are adjustable structures, so they can be adjusted according to the width of the stock head, so that this device can be adapted to various coils with different widths.

[0067] In this embodiment, as Figure 4 shown, a receiving frame 12 is provided at the bottom of the discharge end of the frame 1. A roller 13 with a movement direction perpendicular to the movement direction from the inlet to the outlet is provided on the receiving frame 12. A buffer block 14 is provided on the side of the receiving frame 12 facing the frame 1;

[0068] When the second material shaft 3 is automatically loaded, the first material shaft 2 is pushed out to the receiving frame 12 by the second material shaft 3. When manually collecting the first material shaft 2, the first material shaft 2 can be taken out along the rolling direction of the roller 13.

[0069] Specifically, one end of the receiving frame 12 away from the frame 1 is set as a baffle structure, and the buffer block 14 is installed on the baffle structure.

[0070] In this structure, the setting of the receiving frame 12 can realize the function of collecting the empty winding shaft. Among them, the setting of the buffer block 14 can play a buffering role to prevent the empty winding shaft from directly colliding with the receiving frame 12. At the same time, by setting the roller 13, it is convenient to take out the empty winding shaft and reduce the direct friction between the empty winding shaft and the receiving frame 12.

[0071] In this embodiment, as Figure 5As shown in the figure, a lifting plate 15 is provided at the feeding port of the frame 1. A support seat 16 is provided on the lifting plate 15. A positioning groove 17 is provided on the support seat 16. A blocking protrusion 18 is provided on the side of the support seat 16 away from the frame 1. It further includes a third driving cylinder 19 for driving the third lifting plate 15 to move up and down.

[0072] During operation, when loading a new material shaft, the third driving cylinder 19 drives the lifting plate 15 to descend. An external forklift places the new coil on the support block. Then the third driving cylinder 19 drives the lifting plate 15 to ascend, and workers push the new coil onto the unwinding rack 11.

[0073] In this structure, through the setting of the lifting plate 15, it is convenient for external connection equipment to send new coils into the frame 1. The settings of the positioning groove 17 and the blocking protrusion 18 can prevent the coils placed on the support seat 16 from falling off.

[0074] In the specific embodiments described above, the purpose, technical solutions and beneficial effects of the present invention have been further described in detail. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An automatic feeding method, characterized in that: The specific working steps are: Step 1: The first material shaft (2) is located at the working position, the first gear (4) of the first material shaft (2) is meshed with the second gear (6), the driving motor (5) drives the first material shaft (2) to rotate to perform the material discharge operation, and the second material shaft (3) is located at the material inlet; Step 2: Clamp the material head of the second material shaft (3) at the material head clamping translation mechanism (20); Step 3: When the tail material detection mechanism detects that the first material shaft (2) has unwound to the tail material, the head material clamping translation mechanism (20) drives the head material of the second roll material in the second material shaft (3) to move forward, and at the same time, the material pushing roll mechanism (28) pushes the second material shaft (3) to the working position, and the first gear (4) of the second material shaft (3) meshes with the second gear (6); Step 4: The second material shaft (3) pushes the first material shaft (2) to the rear end of the unwinding frame (11).

2. An automatic feeding method according to claim 1, characterized in that: It comprises a frame (1), an unwinding frame (11), and a first material shaft (2) and a second material shaft (3) arranged on the unwinding frame (11); the frame (1) is also provided with a head material clamping and translating mechanism (20); One end of the first material shaft (2) and the second material shaft (3) is a driving end, and the other end of the first material shaft (2) and the second material shaft (3) is a limiting end. The driving ends of the first material shaft (2) and the second material shaft (3) are both provided with a first gear (4). The frame (1) is also provided with a second gear (6) for meshing with the first gear (4), and also includes a driving motor (5) for driving the second gear (6) to rotate. The frame (1) is also provided with a limiting mechanism for limiting the limiting end and a material roll pushing mechanism (28) for pushing the second material shaft (3) to a working position. The frame (1) is also provided with a tailing detection mechanism for detecting tailings.

3. An automatic feeding method according to claim 2, characterized in that: The material pushing roll mechanism (28) comprises a first mounting plate (39) and a second mounting plate (29) mounted on the frame (1), a first rotating wheel (30) and a second rotating wheel (31) being mounted on the first mounting plate (39) and the second mounting plate (29), a belt (33) being sleeved on the first rotating wheel (30) and the second rotating wheel (31), and further comprises a first driving motor (32) for driving the first rotating wheel (30) or the second rotating wheel (31) to rotate, and the material pushing roll mechanism (28) is mounted on the belt (33); The first driving motor (32) drives the first rotating wheel (30) or the second rotating wheel (31) to rotate, the belt (33) moves around the first rotating wheel (30) and the second rotating wheel (31), and the material pushing roll mechanism (28) moves horizontally following the belt (33).

4. An automatic feeding method as claimed in claim 3, characterized in that: It also includes a driving frame (34) installed on the belt (33), and a pushing block (36), the pushing block (36) including a pushing portion (37) located at the upper part and a limiting portion (38) located at the lower part, the middle part of the pushing block (36) is rotatably connected to the driving frame (34), the limiting portion (38) includes an inwardly recessed groove, the driving frame (34) is provided with a protruding portion (35) for extending into the groove, and the weight of the limiting portion (38) is greater than the weight of the pushing portion (37); During the pushing process, the pushing block (36) rotates counterclockwise along the rotating mounting portion, and the second material shaft (3) can enter the unwinding frame (11) through the pushing block (36). Since the weight of the limiting portion (38) is greater than the weight of the pushing portion (37), the pushing block (36) rotates clockwise to return to the vertical state. Since the protrusion (35) is located in the groove, the pushing block (36) cannot continue to rotate, thereby maintaining the vertical state. Under the action of the first drive motor (32), the pushing block (36) pushes the second material shaft (3) to move forward to the working position.

5. An automatic feeding method as claimed in claim 2, characterized in that: The limiting mechanism comprises a support block (7) and a limiting arc block (8) which are arranged correspondingly at the working position, and also comprises a first driving cylinder (9) for driving the limiting arc block (8) to move downward and a second driving cylinder (10) for driving the supporting block (7) to move upward; When the first material shaft (2) or the second material shaft (3) moves to the working position, the limiting end of the first material shaft (2) or the second material shaft (3) is limited between the arc block and the support block (7).

6. An automatic feeding method according to claim 2, characterized in that: The head material clamping and translating mechanism (20) comprises a first clamping block (21) and a second clamping block (22) connected by a push-pull clamp (23); the first clamping block (21) is sleeved with a first limit block (24) and a second limit block (25) which can slide on the first clamping block (21); The frame (1) is also provided with a horizontal driving cylinder (26) for driving the first clamping block (21) to move horizontally. A scale (27) is provided on the surface of the first clamping block (21); When clamping the material head, the positions of the first limit block (24) and the second limit block (25) are adjusted, the push-pull clamp (23) is loosened, the material head of the second material shaft (3) is passed through the gap between the first clamping block (21) and the second clamping block (22), and then the push-pull clamp (23) is pulled to lock it. When loading the material, the horizontal driving cylinder (26) drives the first clamping block (21) to drive the head of the second coil to move forward.

7. An automatic feeding method as claimed in claim 2, characterized in that: A receiving frame (12) is provided at the bottom of the discharge end of the frame (1), a roller (13) is provided on the receiving frame (12) and the movement direction is perpendicular to the movement direction from the feed port to the discharge port, and a buffer block (14) is provided on the side of the receiving frame (12) facing the frame (1); When the second material shaft (3) is automatically loaded, the first material shaft (2) is pushed out by the second material shaft (3) onto the receiving frame (12). When manually collecting the first material shaft (2), the first material shaft (2) can be taken out along the rolling direction of the roller (13).

8. An automatic feeding method as claimed in claim 2, characterized in that: The frame (1) is provided with a lifting plate (15) at the material inlet, the lifting plate (15) is provided with a support seat (16), the support seat (16) is provided with a positioning groove (17), the support seat (16) is provided with a blocking protrusion (18) on the side away from the frame (1), and also includes a third driving cylinder (19) for driving the third lifting plate (15) to perform lifting movement; When new material is loaded, the third driving cylinder (19) drives the lifting plate (15) to descend, and an external forklift puts the new coil on the support block (7). The third driving cylinder (19) drives the lifting plate (15) to rise, and the new coil is manually pushed onto the unwinding rack (11).

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