An automatic bagging machine and method

Abstract

This invention provides an automatic bagging machine and method, relating to the field of automation equipment technology. The automatic bagging machine includes a feeding unit, a bag conveying unit, a bag supporting unit, a transfer unit, and a control unit. The automatic bagging machine and method automatically inject material into a hopper through the feeding unit and open and close the hopper outlet through a gate mechanism, thereby achieving unloading or shutting off the hopper; the bag conveying unit conveys woven bags one by one to the bag supporting unit; the bag supporting unit opens the woven bags and moves them under the hopper, aligning the opening of the woven bags with the hopper outlet; under the control of the gate mechanism, material in the hopper is loaded into the woven bags until the woven bags are full, and then the transfer unit removes the woven bags from under the hopper; thus, automatic bagging operation is achieved with high bagging efficiency.

Description

Technical Field

[0001] This invention relates to the field of automation equipment technology, and more specifically to an automatic bagging machine and method. Background Technology

[0002] Bagging granular materials (such as grains and mineral pellets) typically requires two operators working together: one to hold the bag open and the other to fill it, resulting in low efficiency. Alternatively, using a bag-opening device to open the bag and having one person fill it is also inefficient. Therefore, it is necessary to design an automatic bagging machine to automate the bagging of granular materials and improve bagging efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic bagging machine and method to achieve automatic bagging of materials and improve bagging efficiency.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] An automatic bagging machine includes a feeding unit, a bag conveying unit, a bag supporting unit, a transfer unit, and a control unit;

[0006] The feeding unit includes a feeding conveyor belt and a hopper. The feeding conveyor belt is used to inject materials into the hopper from the inlet. A gate mechanism is provided at the outlet of the hopper. The gate mechanism is used to open and close the outlet of the hopper.

[0007] The bag-carrying unit is used to deliver woven bags to the bag-supporting unit one by one;

[0008] The bag-supporting unit is used to open the woven bag and move it below the hopper so that the opening of the woven bag is aligned with the outlet of the hopper.

[0009] After the woven bag is filled with material, the transfer unit is used to remove the woven bag from under the hopper;

[0010] The control unit is connected to the feeding unit, bag conveying unit, bag supporting unit and transfer unit respectively, and is used to control the operation of the feeding unit, bag conveying unit, bag supporting unit and transfer unit.

[0011] Preferably, the bag support unit includes a transition platform, a support frame, a servo motor, a blower mechanism, a first lead screw, a first servo motor, a first lead screw nut, a first slide rail, a first slider, a motor base, a second servo motor, a second lead screw, a second lead screw nut, a sliding sleeve, and a support part;

[0012] The transition platform is used to temporarily store woven bags transported from the bag transport unit, and several slots are opened on one side of the transition platform;

[0013] The support frame is provided on one side of the transition platform, and a servo motor is provided on the support frame. The output shaft of the servo motor is provided with a bag-carrying nail. The position and number of the bag-carrying nails correspond to the slot, and the bag-carrying nails can pass through the slot.

[0014] The support frame is equipped with a blower mechanism, which is used to blow air onto the woven bag located below it;

[0015] The support frame is provided with four first lead screws, which are arranged in parallel along the horizontal direction. The support frame is provided with a first servo motor corresponding to the number of first lead screws. The output shaft of the first servo motor is connected to the first lead screw. Each first lead screw is fitted with a first nut.

[0016] The support frame is provided with four first slide rails, which are arranged horizontally and in parallel, and each first slide rail is fitted with a first slider.

[0017] The first nut and the first slider are arranged in pairs, and the first nut and the first slider are fixedly connected.

[0018] Each first slider is provided with a motor base, the motor base is provided with a second servo motor, the output shaft of the second servo motor is connected to the second lead screw, the second lead screw is arranged in a vertical direction, and the second lead screw is fitted with a second lead nut;

[0019] The first slider has a sliding hole arranged vertically, the sliding sleeve is slidably connected in the sliding hole, and the lower end of the sliding sleeve is provided with a support for contacting the woven bag;

[0020] The second lead screw passes through the sliding sleeve and the sliding hole, and the second lead screw nut is provided on the sliding sleeve.

[0021] Preferably, the hair dryer is configured as an electric fan.

[0022] Preferably, the output shaft of the servo motor is provided with a drive lever frame, and the bag-carrying nail is provided on the drive lever frame.

[0023] Preferably, the bag transport unit includes a bag storage box, a second slide rail, a second slider, a push plate, and a push rod motor;

[0024] The bottom plate of the storage bag box is configured as a flat part and an inclined part connected in sequence. A bag outlet is opened at the lower end of one side of the storage bag box. The lower end of the inclined part corresponds to the bag outlet, and the bag outlet corresponds to the upper surface of the transition platform.

[0025] The storage bag box is provided with the second slide rails on the opposite side walls. The second slide rails are arranged in a horizontal direction and are parallel to each other. Each second slide rail is fitted with a second slider.

[0026] The push plate is configured as a plurality of push plates, and the second slider is connected to both sides of the push plate respectively. Adjacent push plates are connected by partitions, and space is left between adjacent push plates for storing woven bags.

[0027] The push rod motor is installed on the other side of the storage bag box, and the telescopic end of the push rod motor is connected to the push plate.

[0028] Preferably, the feeding unit further includes a distributor disposed between the feeding conveyor belt and the hopper, wherein there are two hoppers;

[0029] The distributor includes a distributor seat, a distributor bracket, a third servo motor, and a baffle plate. The distributor seat is located at the unloading end of the feeding conveyor belt. The distributor seat is provided with an unloading port. The left half of the unloading port is connected to the inlet of a hopper via a left guide chute, and the right half of the unloading port is connected to the inlet of another hopper via a right guide chute.

[0030] The material distribution bracket is mounted on the material distribution seat, and the third servo motor is mounted on the material distribution bracket. The output shaft of the third servo motor is connected to the baffle plate.

[0031] The baffle plate swings to the left side of the material distribution seat to block the left half of the discharge port, and the baffle plate swings to the right side of the material distribution seat to block the right half of the discharge port.

[0032] Preferably, the gate mechanism includes a gate frame, a gate plate, a fourth servo motor, a third lead screw, and a third lead screw nut;

[0033] The gate frame is configured to provide the outlet position of the hopper, and the gate plate is slidably connected to the gate frame. The gate plate can move relative to the gate frame to open and close the outlet of the hopper.

[0034] The fourth servo motor is installed on the gate frame. The output shaft of the fourth servo motor is connected to the third lead screw. The third lead screw is fitted with the third lead nut, and the third lead nut is fixedly connected to the gate plate.

[0035] Preferably, the transfer unit is configured as a transfer conveyor belt, which is located below the hopper.

[0036] Preferably, it also includes a first photoelectric sensor and a second photoelectric sensor that are signal-connected to the control unit. The sensing end of the first photoelectric sensor faces the opening of the woven bag. The first photoelectric sensor is used to monitor whether the woven bag is in an open state when it is in the bag-supporting unit.

[0037] The second photoelectric sensor is located below the outlet of the hopper, with its sensing end facing the woven bag. The second photoelectric sensor is used to monitor whether the woven bag is below the outlet of the hopper.

[0038] An automatic bagging method, using the above-mentioned automatic bagging machine;

[0039] The method is as follows:

[0040] Step 1: The material is fed into the hopper through the feeding unit, and the woven bags are conveyed one by one to the bag supporting unit through the bag conveying unit. The bag supporting unit opens the woven bags and moves them to the bottom of the hopper so that the opening of the woven bags is aligned with the outlet of the hopper.

[0041] Step 2: The gate mechanism opens the outlet of the hopper, the material in the hopper is loaded into a woven bag, and the gate mechanism closes the outlet of the hopper.

[0042] Step 3: After the woven bag is filled with material, the transfer unit removes the woven bag from under the hopper.

[0043] The beneficial technical effects of this invention are:

[0044] The automatic bagging machine and method of the present invention automatically injects material into the hopper through a feeding unit and opens and closes the outlet of the hopper through a gate mechanism, thereby realizing the unloading or shut-off of the hopper; the bag conveying unit conveys woven bags one by one to the bag supporting unit; the bag supporting unit opens the woven bags and moves them under the hopper so that the opening of the woven bags is aligned with the outlet of the hopper; under the control of the gate mechanism, the material in the hopper is loaded into the woven bags until the woven bags are full of material, and then the transfer unit removes the woven bags from under the hopper; thus, the automatic bagging operation of materials is realized, and the bagging efficiency is high. Attached Figure Description

[0045] Figure 1 The three-dimensional structure of the automatic bagging machine according to an embodiment of the present invention Figure 1 ;

[0046] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0047] Figure 3 The three-dimensional structure of the automatic bagging machine according to an embodiment of the present invention Figure 2 ;

[0048] Figure 4 This is a front view of the automatic bagging machine according to an embodiment of the present invention;

[0049] Figure 5 This is a rear view of the automatic bagging machine according to an embodiment of the present invention;

[0050] Figure 6This is a top view of the automatic bagging machine according to an embodiment of the present invention;

[0051] Figure 7 This is a bottom view of the automatic bagging machine according to an embodiment of the present invention;

[0052] Figure 8 This is a left view of the automatic bagging machine according to an embodiment of the present invention;

[0053] Figure 9 This is a right view of the automatic bagging machine according to an embodiment of the present invention;

[0054] Figure 10 This is a partial three-dimensional view of the automatic bagging machine according to an embodiment of the present invention;

[0055] Figure 11 This is a perspective view of the servo motor, drive lever, and bag-shaped nail according to an embodiment of the present invention;

[0056] Figure 12 This is a partial three-dimensional view of the bag support unit according to an embodiment of the present invention. Detailed Implementation

[0057] To make the objectives, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. Certain embodiments of the invention will be described more fully below with reference to the accompanying drawings, and some, but not all, of these embodiments will be shown. In fact, various embodiments of the invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to enable the invention to meet applicable legal requirements.

[0058] In the description of this invention, it should be noted that the terms "inner," "outer," "upper," "lower," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0059] In this embodiment of the invention, an automatic bagging machine and an automatic bagging method are provided. Please refer to [reference needed]. Figures 1 to 12 As shown.

[0060] An automatic bagging machine includes a feeding unit, a bag conveying unit, a bag supporting unit, a transfer unit, and a control unit. The control unit is configured as a PLC controller and is connected to the feeding unit, bag conveying unit, bag supporting unit, and transfer unit via signals. The control unit is used to control the operation of the feeding unit, bag conveying unit, bag supporting unit, and transfer unit.

[0061] The feeding unit includes a feeding conveyor belt 11 and a hopper 12. The feeding conveyor belt 11 is used to inject materials into the hopper 12 from the inlet. A gate mechanism is provided at the outlet of the hopper 12. The gate mechanism is used to open and close the outlet of the hopper 12.

[0062] The feeding conveyor belt 11 is connected between the first drive roller 111 and the first driven roller 112. The first drive roller 111 and the first driven roller 112 are rotatably connected to the feeding belt frame 114. The output shaft of the feeding motor 113 is connected to the first drive roller 111. The output shaft of the feeding motor 113 rotates to drive the feeding conveyor belt 11 to run.

[0063] The feeding unit also includes a distributor disposed between the feeding conveyor belt 11 and the hopper 12, wherein the hopper 12 is configured as two side by side.

[0064] The feeder includes a feeder seat 131, a feeder bracket 132, a third servo motor 133, and a baffle plate 134. The feeder seat 131 is located at the discharge end (upper end) of the feeding conveyor belt 11. The feeder seat 131 is provided with a discharge port 1311. The left half of the discharge port 1311 is connected to the inlet of a hopper 12 via a left guide chute 1351, and the right half of the discharge port 1311 is connected to the inlet of another hopper 12 via a right guide chute 1352.

[0065] The material distribution bracket 132 is mounted on the material distribution seat 131. A third servo motor 133 is mounted on the material distribution bracket 132. The output shaft of the third servo motor 133 is connected to the baffle plate 134.

[0066] The baffle plate 134 swings to the left side of the material distribution seat 131 to block the left half of the discharge port 1311, and the baffle plate 134 swings to the right side of the material distribution seat 131 to block the right half of the discharge port 1311.

[0067] The control unit is connected to the control terminal of the feeding motor 113 and the control terminal of the third servo motor 133 via signal cables.

[0068] The control unit triggers the feeding motor 113 to rotate, thereby driving the feeding conveyor belt 11 to run or stop. The feeding conveyor belt 11 runs to transport the material on it from the loading end (lower end) to the unloading end (upper end). The control unit triggers the third servo motor 133 to rotate forward or backward by a set angle, thereby driving the baffle plate 134 to swing to the left or right side of the distribution seat 131. When the baffle plate 134 swings to the left side of the distribution seat 131 to block the left half of the unloading port 1311, the right half of the unloading port 1311 is connected to the inlet of another hopper 12 via the right guide chute 1352; when the baffle plate 134 swings to the right side of the distribution seat 131 to block the right half of the unloading port 1311, the right half of the unloading port 1311 is connected to the inlet of another hopper 12 via the left guide chute 1351. In this way, the unloading end (upper end) of the feeding conveyor belt 11 can be switched to inject materials into different hoppers 12.

[0069] The gate mechanism includes a gate frame 1361, a gate plate 1362, a fourth servo motor 1363, a third lead screw 1364, and a third lead screw nut.

[0070] The gate frame 1361 is set at the outlet position of the hopper 12. The two sides of the gate plate 1362 are slidably connected in the groove of the gate frame 1361. The gate plate 1362 moves relative to the gate frame 1361 to open and close the outlet of the hopper 12.

[0071] A fourth servo motor 1363 is installed on the gate frame 1361. The output shaft of the fourth servo motor 1363 is connected to the third lead screw 1364. The third lead screw 1364 is fitted with a third lead screw nut, which is fixedly connected to the gate plate 1362.

[0072] The control unit is connected to the control terminal of the fourth servo motor 1363 via a signal cable. The control unit triggers the fourth servo motor 1363 to rotate. The output shaft of the fourth servo motor 1363 rotates to drive the third lead screw 1364 to rotate. The third lead screw 1364 cooperates with the third lead screw nut. Under the condition that the gate plate 1362 slides in cooperation with the gate frame 1361, it drives the gate plate 1362 to move relative to the gate frame 1361.

[0073] The bag conveying unit is used to feed woven bags one by one to the bag supporting unit. The bag supporting unit is used to open the woven bags and move them below the hopper 12 so that the opening of the woven bags is aligned with the outlet of the hopper 12.

[0074] The bag support unit includes a transition platform 211, a support frame 212, a servo motor 22, a blower mechanism 23, a first lead screw 241, a first lead screw nut 242, a first slide rail 243, a first slider 244, a first servo motor 245, a motor base 25, a second servo motor 261, a second lead screw 262, a second lead screw nut, a sliding sleeve 263, and a support part 264.

[0075] The transition platform 211 is used to temporarily store woven bags transported from the bag transport unit. Two slots 2111 are opened on one side of the transition platform 211.

[0076] A support frame 212 is provided on one side of the transition platform 211. A servo motor 22 is mounted on the support frame 212. The output shaft of the servo motor 22 has two carrying pegs 221, the positions of which correspond to the slots 2111, and the carrying pegs 221 can pass through the slots 2111. The output shaft of the servo motor 22 is equipped with a drive rod frame 222, and the two carrying pegs 221 are mounted on the drive rod frame 222.

[0077] The control unit is connected to the control terminal of the servo motor 22 via a signal cable. The control unit triggers the output shaft of the servo motor 22 to rotate, which in turn drives the drive lever 222 to swing, thereby causing the bag-carrying nail 221 to swing and pass through the slot 2111. It should be noted that the woven bag conveyed from the bag-carrying unit is located on the transition platform 211, the upper surface of which is horizontally arranged, and the opening of the woven bag is located on one side of the slot 2111, covering the slot 2111. Thus, when the bag-carrying nail 221 swings through the slot 2111, it grasps the horizontally positioned woven bag. As the bag-carrying nail 221 swings downward, it changes the orientation of the woven bag's opening, directing it towards the blower mechanism 23. For example, if the blower mechanism 23 is located above, the opening of the woven bag can be oriented upwards.

[0078] A blower mechanism 23 is provided on the support frame 212, wherein the blower mechanism 23 is configured as an electric fan. The blower mechanism 23 is used to blow air onto the woven bag located below it to open the opening of the woven bag, so that the subsequent support part 264 can be inserted into the opening of the woven bag to open the opening of the woven bag.

[0079] The control unit is connected to the blower mechanism 23 via a signal cable. The control unit triggers the blower mechanism 23 to blow air to open the opening of the woven bag.

[0080] Four first lead screws 241 are mounted on the support frame 212. The first lead screws 241 are arranged horizontally and parallel to each other. A first servo motor 245, corresponding to the number of first lead screws 241, is mounted on the support frame 212. The output shaft of the first servo motor 245 is connected to the first lead screws 241. Each first lead screw 241 is fitted with a first nut 242. Four first slide rails 243 are mounted on the support frame 212. The first slide rails 243 are arranged horizontally and parallel to each other. A first slider 244 is fitted onto each first slide rail 243. The first nuts 242 and first sliders 244 are arranged in pairs and fixedly connected. Each first slider 244 is equipped with a motor base 25, and a second servo motor 261 is mounted on the motor base 25. The output shaft of the second servo motor 261 is connected to a second lead screw 262, which is arranged vertically and is fitted with a second lead screw nut. A sliding hole is formed on each first slider 244, arranged vertically. A sliding sleeve 263 is slidably connected within the sliding hole, and the lower end of the sliding sleeve 263 is provided with a support portion 264 for contacting the woven bag. The support portion 264 has a toothed structure, and four support portions 264 abut against the inner wall of the woven bag to open the bag's opening. The second lead screw 262 passes through the sliding sleeve 263 and the sliding hole, and a second lead screw nut is mounted on the sliding sleeve 263.

[0081] The control unit is connected to the control terminal of the first servo motor and the control terminal of the second servo motor 261 via signal cables. The control unit triggers the output shafts of the first servo motor and the second servo motor 261 to rotate.

[0082] The output shaft of the first servo motor rotates to drive the first lead screw 241 to rotate. The first lead screw 241 engages with the first lead screw nut 242. The first slide rail 243 and the first slider 244 are in sliding engagement, so that the first slider 244 slides along the first slide rail 243. The output shaft of the second servo motor 261 rotates to drive the second lead screw 262 to rotate. The second lead screw 262 engages with the second lead screw nut. The sliding hole and the sliding sleeve 263 are in sliding engagement, so that the sliding sleeve 263 slides along the sliding hole.

[0083] After the opening of the woven bag is blown open by the blower mechanism 23, the control unit triggers the output shaft of the first servo motor to rotate, causing each of the first sliders 244 to move above the opening of the woven bag, so that the support part 264 is positioned above the opening of the woven bag. Then, the control unit triggers the output shaft of the second servo motor 261 to rotate, causing the sliding sleeve 263 to slide downward along the sliding hole, so that the support part 264 extends into the opening of the woven bag. Next, the control unit triggers the output shaft of the first servo motor 245 to rotate, causing the two outer first sliders 244 to slide forward along the first slide rail 243, and causing the two inner first sliders 244 to slide backward along the first slide rail 243, so that the support part 264 opens the opening of the woven bag. Finally, the control unit triggers the output shaft of the first servo motor to rotate, causing each of the first sliders 244 to move synchronously in the same direction, moving the woven bag below the hopper 12, so that the opening of the woven bag is aligned with the outlet of the hopper 12.

[0084] The bag transport unit includes a bag storage box 31, a second slide rail 32, a second slider, a push plate 33, and a push rod motor 34. The bottom plate of the bag storage box 31 consists of a flat portion 311 and an inclined portion 312 connected sequentially. A bag outlet 313 is opened at the lower end of one side (front) of the bag storage box 31, and the lower end of the inclined portion 312 corresponds to the bag outlet 313, which corresponds to the upper surface of the transition platform 211. Second slide rails 32 are provided on the inner walls of opposite sides (left and right sides) inside the bag storage box 31. The second slide rails 32 are arranged horizontally and parallel to each other, and a second slider is fitted onto each second slide rail 32. Several push plates 33 are provided, with the lower end of each push plate 33 abutting against the flat portion 311. The two sides of each push plate 33 are connected to the second sliders, and adjacent push plates 33 are connected by partitions, leaving space between them for storing woven bags. A push rod motor base 341 is provided on the other side (rear side) of the storage bag box 31. A push rod motor 34 is installed on the push rod motor base 341, and the telescopic end of the push rod motor 34 is connected to the push plate 33.

[0085] The control unit is connected to the control terminal of the push rod motor 34 via a signal cable. The control unit triggers the extension and retraction of the extension end of the push rod motor 34. The extension and retraction end of the push rod motor 34 extends to drive the second slider to move along the second slide rail 32 toward the storage bag box 31. Several push plates 33 move together from the flat part 311 to the inclined part 312. In the initial state, the lower end of the push plate 33 abuts against the flat part 311. As the push plate 33 moves to the inclined part 312, the woven bag between the adjacent push plates slides down to the inclined part 312 and slides out from the bag outlet 313 into the upper surface of the transition platform 211.

[0086] It should be noted that when the woven bag is placed in the space between adjacent push plates 33, the opening of the woven bag is on the same side as the slot 2111 on the transition platform 211, so that when the woven bag slides out into the upper surface of the transition platform 211, the opening of the woven bag is located on one side of the slot 2111, and the woven bag covers the slot 2111.

[0087] After the woven bag is filled with material, the transfer unit is used to remove the woven bag from under the hopper 12.

[0088] The transfer unit is configured as a transfer conveyor belt 41, located below the hoppers 12. Each hopper 12 has a corresponding transfer conveyor belt 41 below it, and each transfer conveyor belt 41 is used to transfer woven bags filled with material from the hopper 12 above it. In this embodiment, two transfer conveyor belts 41 are set for the two hoppers 12. The right-side transfer conveyor belt 41 transports woven bags filled to a certain position in the right-side hopper 12 to the left-side transfer conveyor belt 41, and the left-side transfer conveyor belt 41 transports woven bags filled with material from the left-side hopper 12 to the left. Thus, by using two transfer conveyor belts 41 corresponding to the left-lower-right-higher configuration below each hopper 12, the woven bags can be fully utilized.

[0089] Specifically, the conveyor belt 41 is connected between the second drive roller 421 and the second driven roller 422. The output shaft of the conveyor motor 43 is connected to the second drive roller 421, and the output shaft of the conveyor motor 43 rotates to drive the conveyor belt 41. The control unit is connected to the control terminal of the conveyor motor 43 via a signal cable, and the control unit triggers the conveyor motor 43 to run.

[0090] The first photoelectric sensor 51 is connected to the control unit via a signal cable. The first photoelectric sensor 51 is mounted on the support frame 212 and located on one side of the blower mechanism 23. The sensing end of the first photoelectric sensor 51 faces the opening of the woven bag. The first photoelectric sensor 51 is used to monitor whether the woven bag is in an open state when it is in the bag-supporting unit. Specifically, when the blower mechanism 23 blows air onto the woven bag below it, and the opening of the woven bag is blown open, the first photoelectric sensor 51 detects a change in signal and transmits this signal change to the control unit. This causes the control unit to control the support part 264 to extend into the opening of the woven bag to further open the opening.

[0091] The second photoelectric sensor 52 is connected to the control unit via a signal cable. The second photoelectric sensor 52 is located below the outlet of the hopper 12, with its sensing end facing the side of the woven bag. The second photoelectric sensor 52 is used to monitor whether the woven bag is below the outlet of the hopper 12. When the first slider 244 moves synchronously in the same direction, moving the woven bag below the hopper 12, the second photoelectric sensor 52 detects a change in its signal and transmits this signal change to the control unit. The control unit then controls the gate mechanism, which opens the outlet of the hopper 12, allowing material to be injected into the woven bag.

[0092] The third photoelectric sensor 53 is connected to the control unit via a signal cable. The third photoelectric sensor 53 is mounted on the material distribution seat 131, with its sensing end facing the inlet of the hopper 12. When the hopper 12 is full, the third photoelectric sensor 53 detects a change in signal and transmits this signal change to the control unit. The control unit then controls the third servo motor 133 to rotate forward or backward by a set angle, causing the baffle plate 134 to swing to the left or right side of the material distribution seat 131. This allows the unloading end (upper end) of the feeding conveyor belt 11 to switch and inject material into the other hopper 12 after one hopper 12 is full. Furthermore, when both hoppers 12 are full, both third photoelectric sensors 53 detect a change in signal and transmit this signal change to the control unit. This causes the control unit to stop the feeding motor 113, thus stopping the feeding conveyor belt 11 and preventing material from overflowing from the hoppers 12.

[0093] The fourth photoelectric sensor 54 is connected to the control unit via a signal cable. The fourth photoelectric sensor 54 is located at the outlet of the hopper 12, with its sensing end facing the opening of the woven bag. The fourth photoelectric sensor 54 is used to monitor whether the material in the woven bag is filled to a set height. When the material in the woven bag is filled to the set height, the fourth photoelectric sensor 54 detects a change in the signal and transmits the signal change to the control unit, so that the control unit controls the gate mechanism. The gate mechanism closes the outlet of the hopper 12, and the material in the hopper 12 stops being injected into the woven bag.

[0094] In this embodiment of the invention, an automatic bagging method is also provided, which uses the above-described automatic bagging machine;

[0095] The method is as follows:

[0096] Step 1: The material is fed into the hopper 12 through the feeding unit, and the woven bags are conveyed to the bag supporting unit one by one through the bag conveying unit. The bag supporting unit opens the woven bags and moves them to the bottom of the hopper so that the opening of the woven bags is aligned with the outlet of the hopper 12.

[0097] Step 2: The gate mechanism opens the outlet of hopper 12, the material in hopper 12 is loaded into woven bags, and the gate mechanism closes the outlet of hopper 12.

[0098] Step 3: After the woven bag is filled with material, the transfer unit removes the woven bag from under the hopper 12.

[0099] The specific operating procedures in each of the above steps are as described in the above description of the automatic bagging machine operation process.

[0100] The present invention has been described in detail above with reference to the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the automatic bagging machine of the present invention. The automatic bagging machine and method of the present invention automatically injects material into the hopper 12 through the feeding unit and opens and closes the outlet of the hopper 12 through the gate mechanism, thereby realizing the unloading or shut-off of the hopper 12; the bag conveying unit conveys woven bags one by one to the bag supporting unit; the bag supporting unit opens the woven bags and moves them to the bottom of the hopper 12, so that the opening of the woven bags is aligned with the outlet of the hopper 12; under the control of the gate mechanism, the material in the hopper 12 is loaded into the woven bags until the woven bags are full of material, and then the transfer unit removes the woven bags from the bottom of the hopper 12; thus, the automatic bagging operation of materials is realized, and the bagging efficiency is high.

[0101] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic bagging machine, characterized in that: It includes a feeding unit, a bag conveying unit, a bag supporting unit, a transfer unit, and a control unit; The feeding unit includes a feeding conveyor belt and a hopper. The feeding conveyor belt is used to inject materials into the hopper from the inlet. A gate mechanism is provided at the outlet of the hopper. The gate mechanism is used to open and close the outlet of the hopper. The bag-carrying unit is used to deliver woven bags to the bag-supporting unit one by one; The bag-supporting unit is used to open the woven bag and move it below the hopper so that the opening of the woven bag is aligned with the outlet of the hopper. The bag support unit includes a transition platform, a support frame, a servo motor, a blower mechanism, a first lead screw, a first servo motor, a first lead screw nut, a first slide rail, a first slider, a motor base, a second servo motor, a second lead screw, a second lead screw nut, a sliding sleeve, and a support part; The transition platform is used to temporarily store woven bags transported from the bag transport unit, and several slots are opened on one side of the transition platform; The support frame is provided on one side of the transition platform, and a servo motor is provided on the support frame. The output shaft of the servo motor is provided with a bag-carrying nail. The position and number of the bag-carrying nails correspond to the slot, and the bag-carrying nails can pass through the slot. The support frame is equipped with a blower mechanism, which is used to blow air onto the woven bag located below it; The support frame is provided with four first lead screws, which are arranged in parallel along the horizontal direction. The support frame is provided with a first servo motor corresponding to the number of first lead screws. The output shaft of the first servo motor is connected to the first lead screw. Each first lead screw is fitted with a first nut. The support frame is provided with four first slide rails, which are arranged horizontally and in parallel, and each first slide rail is fitted with a first slider. The first nut and the first slider are arranged in pairs, and the first nut and the first slider are fixedly connected. Each first slider is provided with a motor base, the motor base is provided with a second servo motor, the output shaft of the second servo motor is connected to the second lead screw, the second lead screw is arranged in a vertical direction, and the second lead screw is fitted with a second lead nut; The first slider has a sliding hole arranged vertically, the sliding sleeve is slidably connected in the sliding hole, and the lower end of the sliding sleeve is provided with a support for contacting the woven bag; The second lead screw passes through the sliding sleeve and the sliding hole, and the second lead screw nut is provided on the sliding sleeve; After the woven bag is filled with material, the transfer unit is used to remove the woven bag from under the hopper; The control unit is connected to the feeding unit, bag conveying unit, bag supporting unit and transfer unit respectively, and is used to control the operation of the feeding unit, bag conveying unit, bag supporting unit and transfer unit.

2. The automatic bagging machine according to claim 1, characterized in that: The hair dryer is configured as an electric fan.

3. An automatic bagging machine according to claim 1, characterized in that: The output shaft of the servo motor is equipped with a drive rod frame, and the bag nail is mounted on the drive rod frame.

4. An automatic bagging machine according to claim 1, characterized in that: The bag transport unit includes a bag storage box, a second slide rail, a second slider, a push plate, and a push rod motor; The bottom plate of the storage bag box is configured as a flat part and an inclined part connected in sequence. A bag outlet is opened at the lower end of one side of the storage bag box. The lower end of the inclined part corresponds to the bag outlet, and the bag outlet corresponds to the upper surface of the transition platform. The storage bag box is provided with the second slide rails on the opposite side walls. The second slide rails are arranged in a horizontal direction and are parallel to each other. Each second slide rail is fitted with a second slider. The push plate is configured as a plurality of push plates, and the second slider is connected to both sides of the push plate respectively. Adjacent push plates are connected by partitions, and space is left between adjacent push plates for storing woven bags. The push rod motor is installed on the other side of the storage bag box, and the telescopic end of the push rod motor is connected to the push plate.

5. An automatic bagging machine according to claim 1, characterized in that: The feeding unit also includes a distributor disposed between the feeding conveyor belt and the hopper, wherein there are two hoppers; The distributor includes a distributor seat, a distributor bracket, a third servo motor, and a baffle plate. The distributor seat is located at the unloading end of the feeding conveyor belt. The distributor seat is provided with an unloading port. The left half of the unloading port is connected to the inlet of a hopper via a left guide chute, and the right half of the unloading port is connected to the inlet of another hopper via a right guide chute. The material distribution bracket is mounted on the material distribution seat, and the third servo motor is mounted on the material distribution bracket. The output shaft of the third servo motor is connected to the baffle plate. The baffle plate swings to the left side of the material distribution seat to block the left half of the discharge port, and the baffle plate swings to the right side of the material distribution seat to block the right half of the discharge port.

6. An automatic bagging machine according to claim 1, characterized in that: The gate mechanism includes a gate frame, a gate plate, a fourth servo motor, a third lead screw, and a third lead screw nut; The gate frame is configured to provide the outlet position of the hopper, and the gate plate is slidably connected to the gate frame. The gate plate can move relative to the gate frame to open and close the outlet of the hopper. The fourth servo motor is installed on the gate frame. The output shaft of the fourth servo motor is connected to the third lead screw. The third lead screw is fitted with the third lead nut, and the third lead nut is fixedly connected to the gate plate.

7. An automatic bagging machine according to claim 1, characterized in that: The transfer unit is configured as a transfer conveyor belt, which is located below the hopper.

8. An automatic bagging machine according to claim 1, characterized in that: It also includes a first photoelectric sensor and a second photoelectric sensor that are connected to the control unit. The sensing end of the first photoelectric sensor faces the opening of the woven bag. The first photoelectric sensor is used to monitor whether the woven bag is in an open state when it is in the bag-supporting unit. The second photoelectric sensor is located below the outlet of the hopper, with its sensing end facing the woven bag. The second photoelectric sensor is used to monitor whether the woven bag is below the outlet of the hopper.

9. An automatic bagging method, characterized in that, The automatic bagging machine according to any one of claims 1 to 8; The method is as follows: Step 1: The material is fed into the hopper through the feeding unit, and the woven bags are conveyed one by one to the bag supporting unit through the bag conveying unit. The bag supporting unit opens the woven bags and moves them to the bottom of the hopper so that the opening of the woven bags is aligned with the outlet of the hopper. Step 2: The gate mechanism opens the outlet of the hopper, the material in the hopper is loaded into a woven bag, and the gate mechanism closes the outlet of the hopper. Step 3: After the woven bag is filled with material, the transfer unit removes the woven bag from under the hopper.

Images