An automatic feeding machine and method

Abstract

The present invention discloses an automatic feeding machine and method. The automatic feeding machine includes a material pushing device, a material clamping device, a rotating material supporting device, a cover plate device, and a cutting end detection device; the material pushing device includes a material trough for placing materials and a feeding rod for pushing and pulling materials; both the rotating material supporting device and the material clamping device are arranged at the interruption zone of the material trough. The material clamping device is used for clamping and fixing and loosening and releasing materials. The rotating material supporting device has a normal state and a flipped state; the cutting end detection device is arranged at the discharging end of the material trough for detecting whether there is material in the material trough; the cover plate device is arranged above the material trough for forming an accommodating and limiting space with the material trough to prevent materials from arching. The present invention can respectively control the opening and closing timing of the cover plate device, the lifting timing of the second feeding rod, the opening and closing timing of the detection function of the cutting end detection device, and the flipping timing of the rotating material supporting device through driving pieces, and can ensure the safety, efficiency, and accuracy of the material processing process.

Description

Technical Field

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

[0002] The prior art provides an automatic feeding machine that can automatically feed materials such as round or special-shaped (including square, rectangular, hexagonal, etc.) metal bars to a machine tool for processing. During the feeding process, the automatic feeding machine pushes the front end of the material to the machine tool for processing, such as cutting and segmenting, through a feeding rod. After each section of the material is processed by the machine tool, the push rod pushes the next section of the material to the processing position until the material is divided into multiple sections. Then, the automatic feeding machine pushes a new material to the processing position again, and so on in a cycle.

[0003] However, the traditional automatic feeding machine still has the following problems:

[0004] 1. The cover device of the automatic feeding machine is not reasonably arranged. For example, the timing of opening and closing the cover is unreasonable, and the problem that the material is prone to arching during feeding cannot be solved thoroughly.

[0005] 2. The overall length of the feeding machine is too long.

[0006] 3. When detecting whether there is a material in the detection chute, there is a problem of false detection due to the small size of the material in the visual detection method; there is a problem that the switching timing of the detection function is unreasonable in the mechanical hardware structure detection method.

[0007] 4. In order to recycle the tail material, but the problem of material sagging cannot be avoided.

[0008] 5. The automatic feeding machine includes processes such as blanking, feeding, clamping, end cutting detection, opening and closing the cover, and recycling the tail material during feeding. However, there are still defects in the structures and control timings of each process, resulting in the inability to simultaneously meet the requirements of efficiency, safety, and accuracy in the processing process. Summary of the Invention

[0009] The present invention provides an automatic feeding machine and method that can solve the above technical problems.

[0010] To this end, the present invention adopts the following technical solutions:

[0011] In a first aspect, an automatic feeding machine is provided, including a material pushing device, a clamping device, a rotating material supporting device, a cover device, and an end cutting detection device;

[0012] The material pushing device includes a chute for placing the material and a feeding rod for pushing and pulling the material, and the material can slide in the chute;

[0013] The rotating material supporting device and the material clamping device are both arranged at the interruption zone of the material trough. The material clamping device is used for clamping, fixing, loosening and releasing the material. The rotating material supporting device has a normal state and a flipped state. A clamping jaw for clamping the tail end of the material is arranged at the front end of the feeding rod.

[0014] The cutting end detection device is arranged at the discharging end of the material trough for detecting whether there is material in the material trough.

[0015] The cover plate device is arranged above the material trough for forming a containing and limiting space with the material trough to prevent the material from arching.

[0016] Optionally, the cover plate device includes a cover plate and a lifting block connecting the cover plate. The lifting block is connected with a roller.

[0017] The automatic feeding machine further includes a motor. The motor is drivingly connected with a gear. The gear is meshingly connected with a rack. The rack is fixedly connected with a driving piece. A slope is arranged on the driving piece. The driving piece drives the roller through the slope so that the roller is raised and lowered.

[0018] Optionally, there are two groups of the cover plate devices, which are sequentially arranged along the length direction of the material trough.

[0019] Optionally, the two groups of the cover plate devices are opened and closed in sequence.

[0020] Optionally, it further includes a blanking device for automatically blanking the material into the material trough.

[0021] In a second aspect, an automatic feeding method is provided, which is applied to the automatic feeding machine as described above, and is characterized by including:

[0022] In the initial state, the first feeding rod is at the initial position, and the second feeding rod is lifted; the rotating material supporting device is in the normal state; the cover plate device is in the open cover state; the cutting end detection device is in the detection state.

[0023] The blanking device blanks the material into the material trough.

[0024] The driving piece moves forward, so that the first cover plate and the second cover plate of the cover plate device are closed.

[0025] The first feeding rod pushes the material to move a first preset distance in the material trough.

[0026] The first feeding rod returns to the initial position.

[0027] The driving piece continues to move forward, so that the second feeding rod is lowered and fixedly and limit-connected with the first feeding rod; wherein, the tail end of the second feeding rod is connected with the front end of the first feeding rod.

[0028] The material clamping device clamps the material;

[0029] The first feeding rod drives the second feeding rod to move forward, so that the tail end of the material is clamped by the clamping jaw at the front end of the second feeding rod under the action of the extrusion force, completing the material insertion process;

[0030] The material clamping device releases the material;

[0031] If the length of the material is the first length value, the cutting end detection device then detects whether there is material; if it is the second length value, after the first feeding rod drives the second feeding rod to move forward a second preset distance, the cutting end detection device then detects whether there is material;

[0032] If it is detected that there is material, proceed to the next step; otherwise, issue a material shortage warning;

[0033] The driving piece continues to move forward, and the detection piece of the cutting end detection device leaves the material under the driving action of the driving piece;

[0034] According to each processing length, the first feeding rod drives the second feeding rod to move forward step by step;

[0035] When the second feeding rod approaches the first cover plate of the cover plate device, the first cover plate opens;

[0036] When the second feeding rod approaches the second cover plate of the cover plate device, the second cover plate opens; at this time, the rotating material supporting device starts to flip;

[0037] After processing is completed, the second feeding rod brings the tail material back to the material clamping device;

[0038] The material clamping device clamps the tail material and detects whether there is tail material;

[0039] If it is detected that there is tail material, proceed to the next step; otherwise, issue a tail material loss warning;

[0040] Pull the tail material off the clamping jaw at the front end of the second feeding rod and transfer it to the material clamping device, completing the material pulling process;

[0041] The material clamping device releases and releases the tail material, and the tail material drops and is recycled from the position where the rotating material supporting device gives way at the break belt. At the same time, it detects whether the material clamping device is released; if so, the tail material recycling is completed and proceed to the next step; otherwise, issue a recycling failure warning;

[0042] The driving piece returns to the initial position, and the first feeding rod, the second feeding rod, the rotating material supporting device, the cover plate device, and the cutting end detection device return to the initial state.

[0043] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0044] An automatic feeding machine and method provided by the embodiments of the present invention can respectively control the opening and closing timing of the cover plate device, the lifting timing of the second feeding rod, the opening and closing timing of the detection function of the cutting end detection device, and the flipping timing of the rotating material supporting device through the driving piece, and can ensure the safety, efficiency and accuracy of the material processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0046] The structures, ratios, sizes, etc. shown in this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which the present invention can be implemented. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed by the present invention.

[0047] Figure 1 It is the overall structure diagram of the automatic feeding machine provided for the embodiment;

[0048] Figure 2 It is the partial structure diagram of the pushing device provided for the embodiment;

[0049] Figure 3 It is another partial structure diagram of the pushing device provided for the embodiment;

[0050] Figure 4 It is the structure diagram of the cutting end detection device provided for the embodiment;

[0051] Figure 5 It is the structure diagram of the rotating material supporting device provided for the embodiment;

[0052] Figure 6 It is the structure diagram of the cover plate device provided for the embodiment.

[0053] Illustration:

[0054] 100, clamping device; 200, rotating material supporting device; 300, cover plate device; 400, cutting end detection device;

[0055] 10. Materials; 11. Blanking device; 12. Material chute; 13. Pushing device; 14. Discharge end; 15. First feeding rod; 16. Second feeding rod; 17. Lifting piece; 18. Lifting plate; 19. Motor; 20. Push-pull drive assembly; 21. Gear; 22. Rack; 23. Cam plate; 24. First roller; 25. First ramp

[0056] 34. Detection piece; 35. First rotating shaft; 36. Transmission assembly; 37. First cam; 38. Inductor

[0057] 63. Second rotating shaft; 64. Material supporting chute; 65. Connecting rod; 66. Third rotating shaft; 67. Third roller; 68. Third ramp; 69. Second cam

[0058] 71. First cover plate; 72. First lifting block; 73. Fourth roller; 74. Fourth ramp; 75. Second cover plate; 76. Second lifting block; 77. Fifth roller; 78. Fifth ramp Detailed implementation manners

[0059] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention

[0060] Please refer to Figures 1 to 6 as shown

[0061] This embodiment provides an automatic feeding machine, which includes a pushing device 13, a clamping device 100, a rotating material supporting device 200, a cover plate device 300, and a cutting end detection device 400

[0062] The pushing device 13 includes a material chute 12 for placing materials 10 and a feeding rod for pushing and pulling materials 10. The feeding rod includes a first feeding rod 15 and a second feeding rod 16, and the material 10 can slide in the material chute 10

[0063] Splitting the feeding rod of the prior art into a first feeding rod 15 and a second feeding rod 16 can shorten the overall length of the automatic feeding machine

[0064] The rotating material supporting device 200 and the clamping device 100 are both arranged at the interruption zone of the material chute 10, and the clamping device 100 is used for clamping, fixing, loosening, and releasing the material 10

[0065] Specifically, in order not to affect the processing, the tail end of the material 10 needs to be fixed when processing the material 10. Therefore, the front end of the second feeding rod 16 is provided with a clamping claw for clamping the tail end of the material 10. When the material is fed to the clamping device 100, the material 10 is clamped and fixed by the clamping device 100, and then the first feeding rod 15 drives the second feeding rod 16 to move forward to support the tail end of the material 10. Under the action of the extrusion force, the tail end of the material 10 is clamped into the clamping claw at the front end of the second feeding rod 16. Optionally, the clamping claw is an elastic clamping claw.

[0066] Furthermore, when recycling tailings, the tailings are pulled out by the clamping device 100, and it can detect whether the tailings are clamped and whether the tailings are released, to ensure that the tailings have been brought back, avoid the tailings being left behind in the middle, and ensure that the tailings are successfully recycled.

[0067] The rotating support device 200 has a normal state and a flip state. Since it is necessary to feed and recycle the tailings, the rotating support device 200 is in a normal state during feeding, that is, it is parallel to the material trough to prevent the material 10 from arching so that the material 10 can pass through the interruption belt smoothly.

[0068] When the tailings are recovered, the second feeding rod 16 brings the tailings back, and the tailings are clamped by the clamping device 100, and the tailings are pulled off the second feeding rod 16 and transferred to the clamping device 100. At this time, the rotating support device 200 should be in a flipped state, staggered from the material trough 12, avoiding the space for the tailings to fall and be recovered, that is, the clamping device 100 releases the tailings, so that the tailings fall from the interrupted belt for recovery.

[0069] The cut end detection device 400 is disposed at the discharge end 14 of the trough 12, and is used to detect whether there is material in the trough 12. The cut end detection device 400 is provided with a detection sheet 34, and when the material 10 comes out of the discharge end 14, the detection sheet 34 is lifted up, and whether there is material is detected by the position change of the detection sheet 34. As the feeding continues, the material 10 continues to be fed out, and at this time the detection sheet 34 is controlled to flip and leave the material 10 to avoid pressing down the material 10 and affecting the processing.

[0070] The cover plate device 300 is disposed above the material trough 12 and is used to form a containing and limiting space with the material trough 12 to prevent the material 10 from arching.

[0071] Specifically, the cover plate device 300 is provided with a first cover plate 71 and a second cover plate 75. When the second feeding rod 16 pushes the material, if the second feeding rod 16 does not reach the vicinity of the first cover plate 71 and the second cover plate 75, the first cover plate 71 and the second cover plate 75 are both closed to prevent the material 10 from arching; when the second feeding rod 16 reaches the vicinity of the first cover plate 71, the first cover plate 71 is opened to facilitate the passage of the second feeding rod 16; when the second feeding rod 16 reaches the vicinity of the second cover plate 75, the second cover plate 75 is opened to facilitate the passage of the second feeding rod 16.

[0072] Specifically, the feeding method of the automatic feeding machine includes the following steps:

[0073] Step S0: In the initial state, the first feeding rod 15 is in the initial position; the second feeding rod 16 is lifted to facilitate the feeding device 11 to feed materials; the rotating material supporting device 200 is in a normal state to facilitate the material 10 to pass through the interrupting belt; the first cover plate 71 and the second cover plate 75 of the cover plate device 300 are in an open state to facilitate the feeding device 11 to feed materials; the cutting end detection device 400 is in a detection state, that is, its detection piece 34 blocks the outlet of the discharging end 14;

[0074] Step S1: The feeding device 11 feeds the material 10 into the material trough 12; the specific structure of the feeding device 11 is the prior art and will not be elaborated here;

[0075] Step S2: The driving piece 23 moves forward, Figure 1 specifically, it moves to the left, so that the first cover plate 71 and the second cover plate 75 of the cover plate device 300 are closed; after the material 10 is fed, closing the first cover plate 71 and the second cover plate 75 immediately can prevent the material 10 from arching. Especially when the material 10 is thin and long, the prior art always easily has the problem of the material 10 arching, and this setting can solve this problem;

[0076] Step S3: The first feeding rod 15 pushes the material 10 to move a first preset distance in the material trough 12. This first preset distance can be set according to the actual situation. The purpose is to prepare for lowering the second feeding rod 16 after pushing the first preset distance. Specifically, it reserves a placement position for the second feeding rod 16 in the material trough 12;

[0077] Step S4: The first feeding rod 15 returns to the initial position;

[0078] Step S5: The driving piece 23 continues to move forward, so that the second feeding rod 16 is lowered and fixedly and limit-connected to the first feeding rod 15. Therefore, when the pushing device 13 pushes the first feeding rod 15, the second feeding rod 16 can be driven to move at the same time;

[0079] Step S6: The clamping device 100 clamps the material 10;

[0080] Step S7: The first feeding rod 15 drives the second feeding rod 16 to move forward, so that the tail end of the material 10 is clamped by the front end clamping claws of the second feeding rod 16 under the action of the extrusion force, completing the material inserting process;

[0081] Step S8: The clamping device 100 releases the material 10;

[0082] Step S9: If the length of the material 10 is the first length value, the cutting end detection device 400 detects whether there is material at this time; if the length of the material 10 is the second length value, after the first feeding rod 15 drives the second feeding rod 16 to move forward by a second preset distance, the cutting end detection device 40 then detects whether there is material; it should be noted that the initial lengths of the materials 10 can be different, that is, the automatic feeder can push materials 10 of different length dimensions; and the lengths of the first feeding rod 15 and the second feeding rod 16 are fixed. Therefore, when it is a long material, that is, the first length value, after only pushing the first preset value of distance, the material 10 can lift the detection piece 34 for cutting end detection; when it is a short material, that is, the second length value, after pushing the second preset value of distance again, the material 10 can reach it to lift the detection piece 34 for cutting end detection;

[0083] Step S10: If it is detected that there is material, proceed to the next step; otherwise, issue a material shortage alarm; this cutting end detection timing is better, and there is no need to start detecting the material 10 before this, improving the detection reliability;

[0084] Step S11: The driving piece 23 continues to move forward, and the detection piece 34 of the cutting end detection device 400 lifts away from the material 10, avoiding the detection piece 34 from continuing to press down on the material 10 and preventing it from affecting the processing of the material 10;

[0085] Step S12: According to each processing length, the first feeding rod 15 drives the second feeding rod 16 to move forward step by step; that is, feed according to the processing segmentation distance of the material 10; it should be understood that each time it can push a distance that is one time the processing segmentation distance to achieve equidistant segmentation of the cutting of the material 10. Of course, it can also be non-equidistant segmentation; it should be noted that in the specific implementation process, the machine tool is the main one and the feeder is the auxiliary one, that is, for how many distances the machine tool moves, the feeder pushes the corresponding distance;

[0086] Step S13: When the second feeding rod 16 approaches the first cover plate 71 of the cover plate device 300, the driving piece 23 continues to move forward, and the first cover plate 71 opens so that the second feeding rod 16 can pass through;

[0087] Step S14: When the second feeding rod 16 approaches the second cover plate 75 of the cover plate device 300, the driving piece 23 continues to move forward, and the second cover plate 75 opens; at this time, the driving piece 23 can also be used to control the rotating material supporting device 200 to start flipping;

[0088] Step S15: After processing is completed, the second feeding rod 16 brings the tail material back to the clamping device 100;

[0089] Step S16: The clamping device 100 clamps the tail material and detects whether there is tail material;

[0090] Step S17: If tailings are detected, proceed to the next step; otherwise, a tailings loss alarm is issued; this setting can ensure that the tailings are successfully brought back and ensure safety;

[0091] Step S18, pulling the tail material off from the front end of the second feeding rod 16 and transferring it to the clamping device 100, completing the pulling process;

[0092] Step S19, the clamping device 100 is released to release the tailings, and the tailings fall from the position where the rotating support device 200 at the interruption belt is avoided for recovery. At the same time, it can be detected whether the clamping device 100 is released; if so, the tailings are recovered and the next step is performed; otherwise, a recovery failure alarm is issued; this setting can ensure the successful recovery of the tailings and ensure safety;

[0093] Step S20: The driving plate 23 returns to the initial position, that is, moves backward. Figure 1 The first feeding rod 15, the second feeding rod 16, the rotating supporting device 200, the cover device 300 and the cut end detection device 400 return to the initial state.

[0094] Therefore, the automatic feeder and method provided in this embodiment can control the switching timing of the cover device 300, the lifting timing of the second feeding rod 16, the switching timing of the detection function of the cutting end detection device 400 and the flipping timing of the rotating support device 200 through the driving plate 23, thereby ensuring the safety, efficiency and accuracy of the material 10 processing process.

[0095] As an optional implementation of this embodiment, in order to realize the above-mentioned automatic feeding method, the unloading device 11, the pushing device 13, the clamping device 100, the rotating support device 200, the cover device 300 and the cut end detection device 400 are respectively described. Among them, the unloading device 11 can be realized by existing technical means.

[0096] like Figure 2 and 3 As shown, in the pushing device 13 , the gear 21 is driven by the motor 19 , the gear 21 is connected to the rack 22 , and the rack 22 is connected to the driving plate 23 .

[0097] Then, a first slope 25 is provided on the driving plate 23 , and the first roller 24 is driven to rise and fall by the first slope 25 . The first roller 24 is fixed on the lifting plate 18 . The lifting plate 18 is connected to the lifting plate 17 . The lifting plate 17 is used to place and install the second feeding rod 16 .

[0098] It should be understood that, in order to achieve the lifting of the second feeding rod 16, the first slope 25 can be set to a slope inclined to the left and a slope inclined to the right. The same applies to the following slopes. Then, by setting the positions of the first slope 25 and the first roller 24, the lifting timing of the second feeding rod 16 can be controlled.

[0099] Among them, the first feeding rod 15 is pushed and pulled by a push-pull driving assembly 20 to realize reciprocating movement in the material trough 12.

[0100] When the second feeding rod 16 descends, the first feeding rod 15 can be fixedly connected by being sleeved with a limiting structure, so that when pushing the material, the second feeding rod 16 and the first feeding rod 15 move synchronously.

[0101] Please refer to Figure 4 As shown, the cutting end detection device 400 includes a detection piece 34 located at the discharge end 14 of the automatic feeder. The detection piece 34 is connected to a first rotating shaft 35. The first rotating shaft 35 is connected to a transmission assembly 36. The transmission assembly 36 is connected to a first cam 37. The first cam 37 is provided with a second slope.

[0102] A second roller is connected to the driving piece 23. When the motor 19 drives the gear 21 to work, the driving piece 23 moves along with the rack 22, drives the second slope on the first cam 37 through the second roller, makes the first cam 37 rotate, and through the transmission assembly 36, promotes the first rotating shaft 35 to rotate, thereby driving the detection piece 34 to rotate, and realizing the opening and closing of the detection piece 34.

[0103] By using the position change of the opening and closing of the detection piece 34, a sensor 38 is arranged on one side of the detection piece 34 to check whether there is a material 10.

[0104] Although the material 10 jacks up the first detection piece 34, the detection piece 34 is still in the pressed state and abuts against the upper surface of the material 10, generating a downward pressure. Therefore, in order to avoid the influence of this downward pressure on the processing of the material 10, when it is detected that there is a material 10, as the material 10 continues to be fed, it is necessary to drive the transmission assembly 36 through the first cam 37 and drive the first rotating shaft 35 to rotate, so that the detection piece 34 continues to rotate and is lifted. When the detection piece 34 is lifted away from the material 10, at this time the detection piece 34 is in a non-detection state.

[0105] Please refer to Figure 5 As shown, the rotating material supporting device 200 includes a material supporting trough 64 and a flipping driving assembly for driving the material supporting trough 64 to flip. The flipping driving assembly includes the above-mentioned driving piece 23. A third roller 67 is further arranged on the driving piece 23. The third roller 67 drives the third slope 68 on the second cam 69, makes the third rotating shaft 66 rotate, and then through the connecting rod 65 and the second rotating shaft 63, enables the material supporting trough 64 to flip.

[0106] By controlling the material supporting trough 64 to be in the position of the interruption belt through the flipping driving assembly, that is, when the material supporting trough 64 is in the normal state, it is possible to avoid the sagging of the material 10 or the crosstalk of the tail material. When it is necessary to recycle the tail material, the material supporting trough 64 can be controlled to be in the flipped state, so that the tail material can fall into the recycling box from the interruption belt.

[0107] Please refer to Figure 6 As shown, the cover plate device 400 includes a first cover plate 71 and a second cover plate 75. The driving piece 23 is further provided with a fourth ramp 74 and a fifth ramp 78. The fourth ramp 74 drives the fourth roller 73 on the first lifting block 72 to lift and lower, and the fifth ramp 78 drives the fifth roller 77 on the second lifting block 76 to lift and lower, so that the opening and closing of the first cover plate 71 and the opening and closing of the second cover plate 75 can be realized.

[0108] In summary, an automatic feeding machine and method provided by the above embodiments can respectively control the opening and closing timing of the cover plate device 300, the lifting timing of the second feeding rod 16, the opening and closing timing of the cutting end detection device 400 detection function, and the flipping timing of the rotating material supporting device 200 through the driving piece 23, and can ensure the safety, efficiency and accuracy of the processing process of the material 10.

[0109] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic feeding machine, characterized in that, it includes a material pushing device, a material clamping device, a rotating material supporting device, a cover plate device and a cutting end detection device; The material pushing device includes a material trough for placing materials and a feeding rod for pushing and pulling materials, and the materials can slide in the material trough; the feeding rod includes a first feeding rod and a second feeding rod. After the second feeding rod is lowered, the tail end thereof is fixedly connected to the front end of the first feeding rod through a limiting structure in a sleeved manner, and the lifting of the second feeding rod is controlled by a first roller driven by a first slope on a driving piece. The first roller drives a lifting piece through a lifting plate to drive the second feeding rod to lift; Both the rotating material supporting device and the material clamping device are arranged at the interruption zone of the material trough. The material clamping device is used for clamping and fixing and releasing materials. The rotating material supporting device has a normal state and a flipped state; the flipped state is controlled by a third roller on the driving piece driving a third slope on a second cam. The third roller drives the material supporting trough to flip through the second cam and a connecting rod; An elastic clamping jaw for clamping the tail end of the material is arranged at the front end of the first feeding rod; The cutting end detection device is arranged at the discharging end of the material trough for detecting whether there is material in the material trough; the detection piece of the cutting end detection device is controlled by a second roller on the driving piece driving a second slope on a first cam. The second roller drives the first cam to rotate, and then drives the detection piece to switch the detection state through a transmission component; The cover plate device is arranged above the material trough for forming a containing and limiting space with the material trough to prevent materials from arching; the cover plate device includes a first cover plate and a second cover plate. The first cover plate is lifted by a fourth roller driven by a fourth slope on the driving piece, and the second cover plate is lifted by a fifth roller driven by a fifth slope on the driving piece; The cover plate device further includes a lifting block connecting the first cover plate and the second cover plate; The automatic feeding machine further includes a motor. The motor is drivingly connected with a gear. The gear is meshingly connected with a rack. The rack is fixedly connected with a driving piece, and a plurality of slopes are arranged on the driving piece; Wherein, the driving piece controls the lifting timing of the second feeding rod, the switching timing of the detection piece of the cutting end detection device, the flipping timing of the rotating material supporting device, and the opening and closing timing of the first cover plate and the second cover plate respectively through the first slope, the second slope, the third slope, the fourth slope and the fifth slope; It further includes a blanking device for automatically blanking materials into the material trough.

2. The automatic feeding machine according to claim 1, characterized in that, There are two groups of the cover plate devices, which are sequentially arranged along the length direction of the material trough.

3. The automatic feeding machine according to claim 2, characterized in that, The two groups of the cover plate devices are opened and closed in sequence.

4. An automatic feeding method, applied to the automatic feeding machine according to any one of claims 1 to 3, characterized in that, it includes: In the initial state, the first feeding rod is located at the initial position and the second feeding rod is lifted; The rotating material supporting device is in the normal state; The cover plate device is in the open cover state; The cutting end detection device is in the detection state; The blanking device blanks materials into the material trough; The driving piece moves forward, causing the first cover plate and the second cover plate of the cover plate device to close; The first feeding rod pushes the material to move a first preset distance in the material groove; The first feeding rod returns to the initial position; The driving piece continues to move forward, causing the second feeding rod to lower and be fixedly and limit-connected to the first feeding rod; wherein, the tail end of the second feeding rod is connected to the front end of the first feeding rod; The material clamping device clamps the material; The first feeding rod drives the second feeding rod to move forward, so that the tail end of the material is clamped by the clamping jaws at the front end of the second feeding rod under the action of the extrusion force, completing the material insertion process; The material clamping device releases the material; If the length of the material is the first length value, then at this time the cutting end detection device detects whether there is material; if it is the second length value, then after the first feeding rod drives the second feeding rod to move forward a second preset distance, the cutting end detection device then detects whether there is material; If it is detected that there is material, proceed to the next step; otherwise, issue a material shortage warning; The driving piece continues to move forward, and the detection piece of the cutting end detection device leaves the material under the driving action of the driving piece; According to each processing length, the first feeding rod drives the second feeding rod to move forward step by step; When the second feeding rod approaches the first cover plate of the cover plate device, the first cover plate opens; When the second feeding rod approaches the second cover plate of the cover plate device, the second cover plate opens; at this time, the rotating material supporting device starts to flip; After processing is completed, the second feeding rod brings the tail material back to the material clamping device; The material clamping device clamps the tail material and detects whether there is tail material; If it is detected that there is tail material, proceed to the next step; otherwise, issue a tail material loss warning; Pull the tail material off the clamping jaws at the front end of the second feeding rod and transfer it to the material clamping device, completing the material pulling process; The material clamping device releases and releases the tail material, and the tail material drops and is recycled from the position where the rotating material supporting device gives way at the break belt. At the same time, it is detected whether the material clamping device is released; if so, the tail material recycling is completed and the next step is carried out; otherwise, a recycling failure warning is issued; The driving piece returns to the initial position, and the first feeding rod, the second feeding rod, the rotating material supporting device, the cover plate device, and the cutting end detection device return to the initial state.

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