A special quantitative feeding device for hot-dip galvanizing production line

Abstract

The present invention provides a quantitative feeding device dedicated to a hot-dip galvanizing production line, and relates to the technical field of the hot-dip galvanizing industry. The quantitative feeding device comprises a first frame, wherein the four corners of the top of the first frame are fixedly connected with damping springs, a vibrating bucket is fixedly connected between the tops of the two damping springs on the left side, a feeding hopper is passed through and fixedly connected to the right side of the vibrating bucket, and a weighing bucket is arranged in the middle of the top of the second frame. The workpiece starts to vibrate in the vibrating bucket, and slowly moves to the right until it enters the feeding hopper. The weighing bucket receives the material and weighs it through a weighing sensor. The first driving cylinder works, and the two material doors are rotated and opened through the synchronous connecting rod, the spherical bearing and the connecting rod to discharge the material, thereby realizing precise control of the weight of the loaded material, reducing the labor intensity of the manual labor, and improving the production efficiency through automatic feeding, which is worthy of vigorous promotion.

Description

Technical Field

[0001] The invention relates to the technical field of hot-dip galvanizing industry, and in particular to a special quantitative feeding device for a hot-dip galvanizing production line. Background Art

[0002] Hot-dip galvanizing is to make molten metal react with iron matrix to produce alloy layer, so that the matrix and the coating are combined. Hot-dip galvanizing is to pickle the steel parts first, and then clean them in ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then send them to the hot-dip plating tank. With the development of standard parts hot-dip galvanizing industry, mechanized and automated hot-dip galvanizing equipment has gradually replaced manual galvanizing, and related hot-dip galvanizing equipment has also gradually appeared. Mechanized hot-dip galvanizing requires quantification of galvanized workpieces, so weighing equipment is needed.

[0003] Hot-dip galvanizing of standard parts is mostly done manually. The front-end loading method of hot-dip galvanizing is: manually shovel the workpiece with a shovel, and then pour the workpiece into the galvanizing basket for hot-dip galvanizing. The loading amount in this way is inaccurate and cannot be quantified; at the same time, the labor intensity of the workers is high and the efficiency is relatively low. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a quantitative feeding device dedicated to a hot-dip galvanizing production line, which solves the problem that the feed weight on the existing hot-dip galvanizing production line is inaccurate and cannot be quantified.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a quantitative feeding device dedicated to a hot-dip galvanizing production line, comprising a first frame, wherein vibration-damping springs are fixedly connected at the four corners of the top of the first frame, a vibrating bucket is fixedly connected between the tops of the two vibration-damping springs on the left, a feeding hopper is penetrated and fixedly connected on the right side of the vibrating bucket, a control box is fixedly connected to the middle position of the left side of the first frame, a controller is fixedly connected to the inner wall of the middle position of the left side of the control box, a cover plate is fixedly connected to the top of the feeding hopper, the vibrating bucket is connected to the inside of the feeding hopper, the front and rear ends of the middle right side of the vibrating bucket are penetrated and provided with slots, the front and rear ends of the middle right side of the vibrating bucket are fixedly connected to the outer walls, a photoelectric switch is slidably connected to the fixed plate at the front end, and the position of the photoelectric switch corresponds to the slot, and a receiver is slidably connected to the fixed plate at the rear end, and the position of the receiver corresponds to the slot.

[0008] Preferably, both front and rear ends of the left side of the vibration bucket are fixedly connected with vibration motors.

[0009] Preferably, the front and rear ends of the middle position of the bottom of the feeding hopper are respectively fixedly connected to the right shock-absorbing spring.

[0010] Preferably, a material flow control plate is slidably connected to the left side of the top of the feeding hopper, and fixing screws are penetrated and arranged at both the front and rear ends of the material flow control plate, and the fixing screws are threadedly connected to the right side of the vibration hopper, and a pull plate is fixedly connected to the right side of the top of the material flow control plate.

[0011] Preferably, the controller is electrically connected to the weighing sensor, the vibration motor and the receiver respectively.

[0012] Preferably, a second frame is provided on the right side of the bottom of the feeding hopper, and a weighing bucket is provided at the middle position on the top of the second frame, the weighing bucket includes a bucket body, a material gate, a first driving cylinder, a synchronous connecting rod, a joint bearing and a connecting rod, the first driving cylinder is fixedly connected to the outer wall at the middle position on both sides of the bucket body, and the bucket body and the second frame are fixedly connected, the material gates are rotatably connected on both sides of the front and rear output ends of two adjacent first driving cylinders, and the tops of the material gates are rotatably connected with connecting rods, and self-lubricating bushings are provided on the outer diameter of the connecting rods, the front and rear output ends of the first driving cylinder are rotatably connected with joint bearings, and a synchronous connecting rod is rotatably connected between two adjacent joint bearings, and weighing sensors are fixedly connected to the middle positions on the left and right sides of the top of the second frame, and the weighing sensors are electrically connected to the controller.

[0013] Preferably, a heat insulation layer guard plate is fixedly connected between the top and bottom of the middle position at the rear end of the second frame, and a jacking mechanism is arranged at the bottom of the heat insulation layer guard plate, and the jacking mechanism includes a second driving cylinder, a connecting rod, a guide rod, a support plate and a detection switch; the second driving cylinder is rotatably connected to the middle position at the rear end of the heat insulation layer guard plate, the output end of the second driving cylinder is rotatably connected to the connecting rod and the front end of the connecting rod passes through the bottom of the second frame, the top of the front end of the connecting rod is rotatably connected to the guide rod, the top end of the guide rod passes through the second frame and is fixedly connected to the support plate, a detection switch is arranged at the middle position at the front end of the heat insulation layer guard plate and the detection switch is electrically connected to the controller, and a material receiving basket is arranged on the top of the support plate.

[0014] Preferably, a quantitative feeding device dedicated to a hot dip galvanizing production line, the method for using the quantitative feeding device comprises the following steps:

[0015] The material on the left side of the vibrating feeder is fed to the conveyor, which transfers the workpiece to the vibrating bucket. The vibrating motor is powered on and starts working. The workpiece starts to vibrate in the vibrating bucket and slowly moves to the right until it enters the feeding bucket, so that the workpiece slides out of the feeding bucket and falls into the weighing bucket for feeding.

[0016] The weighing hopper receives the material while weighing it through the weighing sensor, and the real-time weight accumulation is performed through the weighing instrument on the weighing sensor. When the weight is close to the set weight, the vibration frequency of the vibration motor is reduced through the controller, so that the moving speed of the workpiece is reduced. When the weight reaches the set weight, the vibration motor stops working and the feeding hopper stops feeding. The weighing hopper is stationary and waits for discharge. When the receiving basket is placed on the top of the pallet, the signal is detected by the detection switch, and the second drive cylinder works to lift the guide rod through the connecting rod, and then lifts the receiving basket. At the same time, the first drive cylinder works to rotate and open the two material doors through the synchronous connecting rod, the joint bearing and the connecting rod to discharge the material. The double-opening material doors are kept open synchronously through the synchronous connecting rod. After the discharge is completed, the first drive cylinder works to close the material door, and at the same time the pallet falls to take away the receiving basket, and then the vibration hopper runs for the next feeding action.

[0017] Working principle: The material coming from the left side of the vibrating feeder feeds the conveyor, which transfers the workpiece to the vibrating hopper. The vibrating motor starts working after being powered on. The workpiece starts to vibrate in the vibrating hopper and slowly moves to the right until it enters the feeding hopper, causing the workpiece to slide out of the feeding hopper and fall into the weighing hopper for feeding. The weighing hopper receives the material while weighing it through the weighing sensor, and the real-time weight accumulation is performed through the weighing instrument on the weighing sensor. When the weight is close to the set weight, the vibration frequency of the vibrating motor is reduced through the controller, so that the moving speed of the workpiece is reduced. When the weight reaches the set weight, the vibrating motor stops working, causing the feeding hopper to stop feeding, and the weighing hopper is stationary waiting for discharge. When the receiving basket is placed on the top of the pallet, the signal is detected by the detection switch, and the second drive cylinder works to lift the guide rod through the connecting rod, thereby lifting the receiving basket. At the same time, the first driving cylinder works, and the two material doors are rotated and opened through the synchronous connecting rod, the joint bearing and the connecting rod to discharge the material. The double-opening material doors are kept open synchronously through the synchronous connecting rod. After the discharge is completed, the first driving cylinder works to close the material door, and the support plate falls to take away the receiving basket, and then the vibrating bucket runs for the next feeding action. The equipment is supported by the first frame, and the vibrating bucket can be supported by the shock-absorbing spring, and it also plays a role of vibration isolation. The material flow control plate slides up and down on the feeding hopper, and the height of the material flow control plate extending into the feeding hopper can be adjusted to control the height of the material flow and ensure uniform material discharge. The cover plate can reduce the dust generated during vibration. The photoelectric switch sends a light signal that is received by the receiver, and the height of the material level in the vibrating bucket can be detected. When the receiver does not receive the light signal, the conveyor stops feeding.

[0018] (III) Beneficial effects

[0019] The present invention provides a quantitative feeding device dedicated to a hot-dip galvanizing production line. It has the following beneficial effects:

[0020] The invention starts to work by energizing the vibration motor, and the workpiece starts to vibrate in the vibration bucket and slowly moves to the right until it enters the feeding bucket, so that the workpiece slides out of the feeding bucket and falls into the weighing bucket for feeding. The weighing bucket receives the material and weighs the material through the weighing sensor. The real-time weight accumulation is performed through the weighing instrument on the weighing sensor. When the weight is close to the set weight, the vibration frequency of the vibration motor is reduced by the controller, so that the moving speed of the workpiece is reduced. When the weight reaches the set weight, the vibration motor stops working, so that the feeding bucket stops feeding, and the weighing bucket is stationary waiting for material discharge. When the receiving basket is placed on the top of the support plate, the detection switch is turned on. When the switch detects the signal, the second driving cylinder works to lift the guide rod through the connecting rod, and then lifts the receiving basket. At the same time, the first driving cylinder works to rotate and open the two material doors through the synchronous connecting rod, the spherical bearing and the connecting rod to discharge the materials. The double-opening material doors are kept opened synchronously through the synchronous connecting rod. After the discharge is completed, the first driving cylinder works to close the material door. At the same time, the support plate falls to take away the receiving basket, and then the vibrating bucket runs for the next feeding action, so as to achieve precise control of the weight of the feeding, and the feeding is uniform, the weight control accuracy is high, and the labor intensity of manual labor is reduced. Automatic feeding improves production efficiency, which is worthy of vigorous promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 It is a front view of the present invention;

[0023] Figure 3 is a side view of the present invention;

[0024] Figure 4 for Figure 1 The enlarged view of point A in the middle;

[0025] Figure 5 for Figure 1 The enlarged view of point B in the middle;

[0026] Figure 6 is a three-dimensional diagram of a second frame of the present invention;

[0027] Figure 7 A side view of a second frame of the present invention;

[0028] Figure 8 It is a schematic diagram of the weighing bucket structure of the present invention.

[0029] Among them, 1. the first frame; 2. the vibration motor; 3. the damping spring; 4. the vibration bucket; 5. the material flow control board; 6. the cover plate; 7. the photoelectric switch; 8. the feeding hopper; 9. the heat insulation layer guard plate; 10. the weighing sensor; 11. the second frame; 12. the control box; 13. the controller; 14. the fixing screws; 15. the slotting; 16. the fixing plate; 17. the pulling plate; 18. the receiver; 19. the weighing bucket; 20. the lifting mechanism; 21. the detection switch; 22. the bucket body; 23. the material door; 24. the first driving cylinder; 25. the synchronous connecting rod; 26. the spherical bearing; 27. the connecting rod; 28. the second driving cylinder; 29. ​​the connecting rod; 30. the guide rod; 31. the support plate; 32. the receiving basket. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] like Figure 1-8 As shown, the embodiment of the present invention provides a quantitative feeding device dedicated to a hot-dip galvanizing production line, including a first frame 1, damping springs 3 are fixedly connected at the four corners of the top of the first frame 1, a vibrating bucket 4 is fixedly connected between the tops of the two damping springs 3 on the left, a feeding hopper 8 is penetrated and fixedly connected on the right side of the vibrating bucket 4, a control box 12 is fixedly connected to the middle position on the left side of the first frame 1, a controller 13 is fixedly connected to the inner wall of the middle position on the left side of the control box 12, a cover plate 6 is fixedly connected to the top of the feeding hopper 8, the vibrating bucket 4 is connected to the inside of the feeding hopper 8, and the front and rear ends of the middle right position of the vibrating bucket 4 are penetrated and A slot 15 is provided, and a fixing plate 16 is fixedly connected to the outer walls at both ends of the front and rear ends on the right side of the middle of the vibration bucket 4. A photoelectric switch 7 is slidably connected to the front fixed plate 16, and the position of the photoelectric switch 7 corresponds to the slot 15. A receiver 18 is slidably connected to the rear fixed plate 16, and the position of the receiver 18 corresponds to the slot 15. A receiver is slidably connected to the rear fixed plate, and the position of the receiver corresponds to the slot. The photoelectric switch 7 sends a light signal which is received by the receiver 18, so that the height of the material level in the vibration bucket 4 can be detected. When the receiver 18 cannot receive the light signal, the conveyor stops feeding.

[0033] The front and rear ends of the left side of the vibrating bucket 4 are fixedly connected with a vibrating motor 2 .

[0034] The front and rear ends of the middle position at the bottom of the feeding hopper 8 are fixedly connected to the right damping spring 3 respectively.

[0035] A material flow control plate 5 is slidably connected to the left side of the top of the feeding hopper 8. Fixing screws 14 are penetrated and provided at both the front and rear ends of the material flow control plate 5, and the fixing screws 14 are threadedly connected to the right side of the vibrating hopper 4. A pull plate 17 is fixedly connected to the right side of the top of the material flow control plate 5. By sliding the material flow control plate 5 up and down on the feeding hopper 8, the height of the material flow control plate 5 extending into the feeding hopper 8 can be adjusted to control the height of the material flow and ensure uniform material discharge.

[0036] The controller 13 is electrically connected to the weighing sensor 10 , the vibration motor 2 and the receiver 18 respectively.

[0037] A second frame 11 is arranged on the right side of the bottom of the feeding hopper 8, and a weighing hopper 19 is arranged at the middle position of the top of the second frame 11. The weighing hopper 19 includes a hopper body 22, a material gate 23, a first driving cylinder 24, a synchronous connecting rod 25, a joint bearing 26 and a connecting rod 27. The first driving cylinder 24 is fixedly connected to the outer wall at the middle position on both sides of the hopper body 22, and the hopper body 22 and the second frame 11 are fixedly connected. The material gates 23 are rotatably connected on both sides of the front and rear output ends of two adjacent first driving cylinders 24, and the connecting rods 27 are rotatably connected between the tops of the material gates 23. Self-lubricating bushings are arranged on the outer diameter of the connecting rod 27. Joint bearings 26 are rotatably connected to the front and rear output ends of the first driving cylinder 24, and a synchronous connecting rod 25 is rotatably connected between two adjacent joint bearings 26. Weighing sensors 10 are fixedly connected to the middle positions on the left and right sides of the top of the second frame 11, and the weighing sensors 10 and the controller 13 are electrically connected.

[0038] An insulation layer guard plate 9 is fixedly connected between the top and bottom of the middle position at the rear end of the second frame 11, and a lifting mechanism 20 is arranged at the bottom of the insulation layer guard plate 9. The lifting mechanism 20 includes a second driving cylinder 28, a connecting rod 29, a guide rod 30, a support plate 31 and a detection switch 21. The second driving cylinder 28 is rotatably connected to the middle position at the rear end of the insulation layer guard plate 9, and the output end of the second driving cylinder 28 is rotatably connected to the connecting rod 29 and the front end of the connecting rod 29 passes through the bottom of the second frame 11, and the top of the front end of the connecting rod 29 is rotatably connected to the guide rod 30. The top end of the guide rod 30 passes through the second frame 11 and is fixedly connected to the support plate 31. A detection switch 21 is arranged at the middle position at the front end of the insulation layer guard plate 9 and the detection switch 21 is electrically connected to the controller 13, and a material receiving basket 32 ​​is arranged on the top of the support plate 31.

[0039] Embodiment 2:

[0040] like Figure 1-8 As shown, an embodiment of the present invention provides a quantitative feeding device dedicated to a hot dip galvanizing production line, and a method for using the quantitative feeding device, comprising the following steps:

[0041] The material on the left side of the vibrating feeder is fed to the conveyor, which transfers the workpiece to the vibrating bucket 4. The vibrating motor 2 is powered on and starts working. The workpiece starts to vibrate in the vibrating bucket 4 and slowly moves to the right until it enters the feeding bucket 8, so that the workpiece slides out of the feeding bucket 8 and falls into the weighing bucket 19 for feeding.

[0042] The weighing hopper 19 receives the material while weighing it through the weighing sensor 10, and the real-time weight accumulation is performed through the weighing instrument on the weighing sensor 10. When the weight is close to the set weight, the vibration frequency of the vibration motor 2 is reduced through the controller 13, so that the moving speed of the workpiece is reduced. When the weight reaches the set weight, the vibration motor 2 stops working, so that the feeding hopper 8 stops feeding, and the weighing hopper 19 is stationary waiting for discharge. When the receiving basket 32 ​​is placed on the top of the support plate 31, the signal is detected by the detection switch 21, and the second driving cylinder 28 works to lift the guide rod 30 through the connecting rod 29, and then The receiving basket 32 ​​is lifted up, and at the same time, the first driving cylinder 24 works, and the two material doors 23 are rotated and opened through the synchronous connecting rod 25, the joint bearing 26 and the connecting rod 27 to discharge the materials. The double-opening material doors 23 are kept opened synchronously through the synchronous connecting rod 25. After the discharge is completed, the first driving cylinder 24 works to close the material doors, and at the same time, the support plate 31 falls to take away the receiving basket 32, and then the vibrating bucket 4 runs for the next feeding action, so as to achieve precise control of the weight of the feeding, and at the same time, the feeding is uniform, the weight control accuracy is high, and the labor intensity of manual labor is reduced. Automatic feeding improves production efficiency.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A quantitative feeding device for a hot dip galvanizing production line, comprising a first frame (1), Features: The first frame (1) is fixedly connected to vibration damping springs (3) at the four corners of the top, a vibration bucket (4) is fixedly connected between the tops of the two vibration damping springs (3) on the left, a feeding hopper (8) is passed through and fixedly connected to the right side of the vibration bucket (4), a control box (12) is fixedly connected to the middle position on the left side of the first frame (1), a controller (13) is fixedly connected to the inner wall of the middle position on the left side of the control box (12), a cover plate (6) is fixedly connected to the top of the feeding hopper (8), and the vibration bucket (4) and The inside of the feeding hopper (8) is connected, and the front and rear ends of the middle right side of the vibrating hopper (4) are penetrated and provided with slots (15), and the front and rear ends of the middle right side of the vibrating hopper (4) are fixedly connected to the outer walls, and the photoelectric switch (7) is slidably connected to the front end of the fixing plate (16), and the position of the photoelectric switch (7) corresponds to the slot (15), and the receiver (18) is slidably connected to the rear end of the fixing plate (16), and the position of the receiver (18) corresponds to the slot (15); A material flow control plate (5) is slidably connected to the left side of the top of the feed hopper (8); fixing screws (14) are passed through and provided at both the front and rear ends of the material flow control plate (5); the fixing screws (14) are threadedly connected to the right side of the vibrating hopper (4); and a pull plate (17) is fixedly connected to the right side of the top of the material flow control plate (5); A second frame (11) is arranged at the right side of the bottom of the feeding hopper (8), a weighing hopper (19) is arranged at the middle position of the top of the second frame (11), the weighing hopper (19) comprising a hopper body (22), a material door (23), a first driving cylinder (24), a synchronous connecting rod (25), a joint bearing (26) and a connecting rod (27), the first driving cylinder (24) is fixedly connected to the outer wall at the middle position on both sides of the hopper body (22), and the hopper body (22) is fixedly connected to the second frame (11), and the front and rear ends of two adjacent first driving cylinders (24) are output A material gate (23) is rotatably connected between the two ends, a connecting rod (27) is rotatably connected between the tops of the material gates (23), a self-lubricating bushing is provided on the outer diameter of the connecting rod (27), joint bearings (26) are rotatably connected to the front and rear output ends of the first driving cylinder (24), a synchronous connecting rod (25) is rotatably connected between two adjacent joint bearings (26), and a weighing sensor (10) is fixedly connected to the middle position of the left and right sides of the top of the second frame (11), and the weighing sensor (10) is electrically connected to the controller (13); A heat insulation layer guard plate (9) is fixedly connected between the top and bottom of the middle position of the rear end of the second frame (11); a lifting mechanism (20) is arranged at the bottom of the heat insulation layer guard plate (9); the lifting mechanism (20) comprises a second driving cylinder (28), a connecting rod (29), a guide rod (30), a support plate (31) and a detection switch (21); a second driving cylinder (28) is rotatably connected to the middle position of the rear end of the heat insulation layer guard plate (9); an output end of the second driving cylinder (28) is A connecting rod (29) is rotatably connected and the front end of the connecting rod (29) passes through the bottom of the second frame (11); the top of the front end of the connecting rod (29) is rotatably connected to a guide rod (30); the top end of the guide rod (30) passes through the second frame (11) and is fixedly connected to a support plate (31); a detection switch (21) is provided at the middle position of the front end of the heat insulation layer guard plate (9) and the detection switch (21) is electrically connected to the controller (13); and a material receiving basket (32) is provided at the top of the support plate (31).

2. A quantitative feeding device for hot dip galvanizing production line according to claim 1, Features: The left front and rear ends of the vibration bucket (4) are both fixedly connected to a vibration motor (2).

3. A quantitative feeding device for hot dip galvanizing production line according to claim 1, Features: The front and rear ends of the middle position of the bottom of the feeding hopper (8) are respectively fixedly connected to the right damping spring (3).

4. A quantitative feeding device for hot dip galvanizing production line according to claim 1, Features: The controller (13) is electrically connected to the weighing sensor (10), the vibration motor (2) and the receiver (18) respectively.

5. A quantitative feeding device for hot dip galvanizing production line according to claim 1, Features: The method for using the quantitative feeding device comprises the following steps: The material on the left side of the vibrating feeder is fed to the conveyor, and the conveyor transfers the workpiece to the vibrating bucket (4). The vibrating motor (2) is powered on and starts to work, and the workpiece starts to vibrate in the vibrating bucket (4) and slowly moves to the right until it enters the feeding bucket (8), so that the workpiece slides out of the feeding bucket (8) and falls into the weighing bucket (19) for feeding; The weighing hopper (19) receives the material while weighing it through the weighing sensor (10), and the weight is accumulated in real time through the weighing meter on the weighing sensor (10). When the weight is close to the set weight, the vibration frequency of the vibration motor (2) is reduced through the controller (13), so that the moving speed of the workpiece is reduced. When the weight reaches the set weight, the vibration motor (2) stops working, so that the feeding hopper (8) stops feeding, and the weighing hopper (19) is stationary and waits for the material to be discharged. When the receiving basket (32) is placed on the top of the support plate (31), a signal is detected by the detection switch (21), and the second driving air The cylinder (28) works to lift the guide rod (30) through the connecting rod (29), thereby lifting the receiving basket (32). At the same time, the first driving cylinder (24) works to rotate and open the two material doors (23) through the synchronous connecting rod (25), the joint bearing (26) and the connecting rod (27) to discharge the material. The double-opening material doors (23) are kept open synchronously through the synchronous connecting rod (25). After the discharge is completed, the first driving cylinder (24) works to close the material door, and at the same time, the supporting plate (31) falls to take away the receiving basket (32), and then the vibrating bucket (4) operates to perform the next feeding action.

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