A large granular fertilizer packaging system

Abstract

The utility model discloses a kind of large granular chemical fertilizer packaging systems, it includes conveying mechanism, bagging mechanism, sealing mechanism and straightening mechanism, the bagging mechanism is set to the upstream end of the conveying mechanism, it is to clamp or loosen the bag mouth of chemical fertilizer bag, and it is to quantitatively loaded into chemical fertilizer into chemical fertilizer bag;The sealing mechanism is set to the downstream end of the conveying mechanism, it is to the bag mouth of chemical fertilizer bag is sealed;The straightening mechanism is set between the bagging mechanism and the sealing mechanism.The beneficial effects of the utility model are: the bag mouth of chemical fertilizer bag loaded with chemical fertilizer can be straightened, and the bag mouth of chemical fertilizer bag is sent into the bag mouth of sealing mechanism, without manual operation, avoid the situation that staff just set the bag mouth of next empty chemical fertilizer bag on the discharging end of bagging mechanism, the last packaging bag loaded with chemical fertilizer has crossed sealing mechanism, sealing mechanism cannot normally seal chemical fertilizer bag.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer production equipment technology, and in particular to a large-particle fertilizer packaging system. Background Technology

[0002] The fertilizer production process mainly includes raw material batching, mixing, granulation, drying, cooling, screening, coating, and packaging. The size of fertilizer granules is usually determined by the application scenario and needs. Take urea as an example: Small granular urea: Particle size between 0.8-2.5mm, suitable for various soils and crops, can be used as base fertilizer and top dressing; when used as top dressing, it is best applied in strips or holes. Medium granular urea: Diameter between 1.18-3.35mm, dissolves quickly, has rapid fertilizer effect, suitable as top dressing, and suitable for crops with short-term nutritional needs, such as vegetables. Large granular urea: Particle size greater than 2mm, generally between 2-6mm, particle size matches diammonium phosphate, can be used as a material for blending compound fertilizers, suitable as base fertilizer, not suitable as top dressing or fertigation, has low biuret content, which is beneficial to crops, suitable for mechanized fertilization, and also suitable for horticulture and forestry. Extra-large granules: Extra-large granules with a particle size of 6mm or more can be used for special purposes such as large-scale aerial dispersal.

[0003] In the production of large-particle fertilizers, packaging equipment is required to bag and package the produced fertilizer granules. Existing fertilizer packaging equipment generally consists of three parts: a bagging machine, a sealing machine, and a conveyor. The bagging machine and the sealing machine are located at the upstream and downstream ends of the conveyor, respectively. After the bagging machine quantitatively fills the fertilizer granules into the packaging bag, the bag clamping mechanism on the bagging machine releases the packaging bag, and the packaging bag containing fertilizer falls onto the conveyor. The conveyor transports the packaging bag containing fertilizer to the sealing machine, and the sealing machine seals the opening of the packaging bag. Because after a fertilizer-filled bag falls onto the conveyor, the worker needs to immediately place the opening of the next empty bag onto the feed inlet. After the bag clamping mechanism on the bagging machine clamps the bag, the worker needs to immediately straighten the opening of the previous fertilizer-filled bag and assist in feeding the bag opening into the sealing machine's sealing port so that the sealing machine can seal the bag opening. Often, just as the worker places the opening of the next empty bag onto the feed inlet, the previous fertilizer-filled bag has already passed the sealing machine, and the sealing machine cannot seal the bag properly. Utility Model Content

[0004] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a large-particle fertilizer packaging system to solve the technical problem in the prior art where the sealing machine cannot properly seal the packaging bag when the worker has just put the opening of the next empty packaging bag onto the feeding port, and the previous packaging bag containing fertilizer has already passed the sealing machine.

[0005] To achieve the above-mentioned technical objectives, the present invention provides a large-particle fertilizer packaging system, comprising: Conveying mechanism; A bagging mechanism is located at the upstream end of the conveying mechanism. It is used to clamp or loosen the opening of the fertilizer bag and to quantitatively fill the fertilizer bag with fertilizer. A sealing mechanism is located at the downstream end of the conveying mechanism and is used to seal the opening of the fertilizer bag. A straightening mechanism is disposed between the bagging mechanism and the sealing mechanism. It includes two straightening plates and two straightening telescopic drive members. The two straightening plates are arranged horizontally opposite each other and extend along the length direction of the conveying mechanism. The output ends of the two straightening telescopic drive members are connected to the two straightening plates one-to-one to drive the straightening plates to move horizontally along the width direction of the conveying mechanism, so as to adjust the distance between the two straightening plates.

[0006] Furthermore, the bagging mechanism includes a feeding hopper, an opening and closing assembly, two weighing sensors, a weighing hopper, and multiple clamping assemblies. The feeding hopper has a feeding cavity with an opening at the top, and a first discharge port communicating with the feeding cavity is opened at the bottom of the feeding hopper. The opening and closing assembly is located at the first discharge port to control the opening or closing of the first discharge port. The two weighing sensors are arranged opposite each other on both sides of the feeding hopper. The weighing hopper is located below the feeding hopper and is detachably and fixedly connected to both weighing sensors. The weighing hopper has a weighing cavity with an opening at the top, and the opening at the top of the weighing cavity communicates with the first discharge port. A second discharge port communicating with the weighing cavity is opened at the bottom of the weighing hopper. The second discharge port is used for the opening of the fertilizer bag to be fitted onto it. Each of the clamping assemblies is arranged circumferentially on the side of the weighing hopper and is used to clamp or release the opening of the fertilizer bag.

[0007] Furthermore, the opening and closing assembly includes a discharge pipe, two opening and closing rods, and two opening and closing telescopic driving components. The upper end of the discharge pipe is connected to the first discharge port. The discharge pipe has a deformable structure. The two opening and closing rods are arranged opposite to each other on both sides of the discharge pipe. The output ends of the two opening and closing telescopic driving components are connected to the two opening and closing rods one-to-one, and are used to drive the two opening and closing rods to move closer to each other or further away from each other. When the two opening and closing rods move closer to each other, they can clamp the discharge pipe to cut it off. When the two opening and closing rods move further away from each other, they can release the discharge pipe to allow it to conduct.

[0008] Furthermore, the discharge tube is a rubber tube.

[0009] Furthermore, the opening and closing assembly also includes a mounting shell and a mounting tube. The mounting shell is detachably and fixedly connected to the feeding hopper. The mounting shell has a mounting cavity with a bottom opening. The top of the mounting shell has a mounting port communicating with the mounting cavity. The mounting port is also communicating with the first discharge port. The mounting tube is fixedly disposed in the mounting cavity, and the upper end of the mounting tube is communicating with the mounting port. The discharge tube is disposed in the mounting cavity, and the upper end of the discharge tube is fixedly sleeved on the mounting tube. Both ends of the two opening and closing rods are slidably connected to the mounting shell. The fixed ends of the two opening and closing telescopic driving components are fixedly connected to the mounting shell.

[0010] Furthermore, a sliding groove is formed on each of the two opposite side walls of the mounting shell, the sliding groove extends in the horizontal direction, and the two ends of the two opening and closing rods are slidably connected to the two sliding grooves one by one.

[0011] Furthermore, the clamping assembly includes a fixed clamping block, a movable clamping block, a movable rod, and a clamping telescopic drive component. The fixed clamping block is fixedly connected to the weighing hopper. The movable clamping block corresponds to the fixed clamping block and cooperates with the fixed clamping block to clamp or loosen the opening of the fertilizer bag. The upper end of the movable rod is hinged to the weighing hopper, and the lower end of the movable rod is fixedly connected to the movable clamping block. The fixed end of the clamping telescopic drive component is hinged to the weighing hopper, and the output end of the clamping telescopic drive component is hinged to the middle of the movable rod, for driving the movable rod to rotate around its upper rotation axis, so that the movable clamping block abuts against or separates from the fixed clamping block.

[0012] Furthermore, the bagging mechanism also includes a stirring assembly, which is disposed on the feeding hopper and used to stir the fertilizer granules in the feeding chamber.

[0013] Furthermore, the stirring assembly includes a stirring paddle and a rotating drive. The stirring paddle is disposed in the feeding chamber, and the output end of the rotating drive is connected to the upper end of the stirring paddle to drive the stirring paddle to rotate, so that the stirring paddle stirs the fertilizer particles in the feeding chamber.

[0014] Furthermore, the large-particle fertilizer packaging system also includes a limiting mechanism, which is disposed between the bagging mechanism and the sealing mechanism, and below the straightening mechanism. The limiting mechanism includes two limiting plates and two limiting telescopic drive members. The two limiting plates are arranged horizontally opposite each other and both extend along the length direction of the conveying mechanism. The output ends of the two limiting telescopic drive members are connected to the two limiting plates one-to-one, and are used to drive the limiting plates to move horizontally along the width direction of the conveying mechanism to adjust the distance between the two limiting plates.

[0015] Compared with the prior art, the beneficial effects of this utility model include: during use, when the conveying mechanism transports the fertilizer bag containing fertilizer to the sealing mechanism, by operating the two straightening telescopic drive components, the two straightening telescopic drive components can drive the corresponding straightening plates to move horizontally along the width direction of the conveying mechanism, which can reduce the distance between the two straightening plates. Both straightening plates abut against the mouth of the fertilizer bag, thereby straightening the mouth of the fertilizer bag and assisting in feeding the mouth of the fertilizer bag into the sealing opening of the sealing mechanism, facilitating sealing. The system seals the openings of fertilizer bags. Workers simply place the opening of the next empty fertilizer bag onto the feeding end of the bagging mechanism. This large-particle fertilizer packaging system can straighten the opening of the fertilizer bag and assist in feeding it into the sealing mechanism's sealing opening. No manual operation is required, preventing situations where the previous fertilizer bag has already passed the sealing mechanism before the worker has placed the opening of the next empty bag onto the feeding end, preventing the sealing mechanism from sealing the fertilizer bag properly. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a large-particle fertilizer packaging system provided by this utility model; Figure 2 This is a three-dimensional structural diagram of the bagging mechanism provided by this utility model; Figure 3 This is a schematic diagram of the opening and closing component provided by this utility model; Figure 4 This is a three-dimensional structural diagram of the straightening mechanism and the limiting mechanism provided by this utility model; In the diagram: 100 - Conveying mechanism, 200 - Bagging mechanism, 210 - Feeding hopper, 211 - Feeding chamber, 212 - First discharge port, 220 - Opening and closing assembly, 221 - Discharge pipe, 222 - Opening and closing rod, 223 - Opening and closing telescopic drive component, 224 - Mounting housing, 2241 - Mounting chamber, 2242 - Mounting port, 2243 - Slide groove, 225 - Mounting pipe, 230 - Weighing sensor, 240 - Weighing hopper, 241 - Weighing chamber, 242 - Second discharge port, 2 50 - Clamping assembly, 251 - Fixed clamping block, 252 - Movable clamping block, 253 - Movable rod, 254 - Clamping telescopic drive component, 300 - Sealing mechanism, 400 - Straightening mechanism, 410 - Straightening plate, 411 - First plate body, 412 - First slide rod, 420 - Straightening telescopic drive component, 500 - Limiting mechanism, 510 - Limiting plate, 511 - Second plate body, 512 - Second slide rod, 520 - Limiting telescopic drive component, 600 - Frame, 700 - Support. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0018] This utility model provides a large-particle fertilizer packaging system, the structure of which is as follows: Figure 1 As shown, the system includes a conveying mechanism 100, a bagging mechanism 200, a sealing mechanism 300, and a straightening mechanism 400. The bagging mechanism 200 is located upstream of the conveying mechanism 100 and is used to clamp or loosen the opening of the fertilizer bag and to quantitatively fill the fertilizer bag. The sealing mechanism 300 is located downstream of the conveying mechanism 100 and is used to seal the opening of the fertilizer bag. The straightening mechanism 400 is located between the bagging mechanism 200 and the sealing mechanism 400. The mechanism 300 includes two straightening plates 410 and two straightening telescopic drive members 420. The two straightening plates 410 are arranged horizontally opposite each other and extend along the length direction of the conveying mechanism 100. The output ends of the two straightening telescopic drive members 420 are connected to the two straightening plates 410 one by one, and are used to drive the straightening plates 410 to move horizontally along the width direction of the conveying mechanism 100 to adjust the distance between the two straightening plates 410.

[0019] In use, the worker places the opening of an empty packaging bag onto the unloading end of the bagging mechanism 200. The bagging mechanism 200 then clamps the opening of the fertilizer bag and quantitatively fills it with fertilizer. After the fertilizer granules are quantitatively filled, the bagging mechanism 200 releases the fertilizer bag, and the bag containing fertilizer falls onto the conveying mechanism 100. The conveying mechanism 100 transports the fertilizer bag to the sealing mechanism 300, which seals the opening of the bag. During this process, by manipulating the two straightening telescopic drive components 420, the corresponding straightening plates 410 can be driven to move horizontally along the width direction of the conveying mechanism 100, allowing the two... The spacing between the straightening plates 410 is reduced, and both straightening plates 410 abut against the opening of the fertilizer bag, thereby straightening the opening of the fertilizer bag and assisting in feeding the opening of the fertilizer bag into the sealing mechanism 300, facilitating the sealing mechanism 300 to seal the opening of the fertilizer bag. The worker only needs to place the opening of the next empty fertilizer bag onto the unloading end of the bagging mechanism 200. The granular fertilizer packaging system can straighten the opening of the fertilizer bag and assist in feeding the opening of the fertilizer bag into the sealing mechanism 300. No manual operation is required, avoiding the situation where the previous fertilizer bag has already passed the sealing mechanism 300 before the worker has put the opening of the next empty fertilizer bag onto the feeding end of the bagging mechanism 200, and the sealing mechanism 300 cannot seal the fertilizer bag properly.

[0020] As a preferred embodiment, please refer to the figure. The conveying mechanism 100 is a straight belt conveyor, which can convey fertilizer bags containing fertilizer in a straight line.

[0021] As a preferred embodiment, please refer to Figure 1 and Figure 2The bagging mechanism 200 includes a feeding hopper 210, an opening and closing assembly 220, two weighing sensors 230, a weighing hopper 240, and multiple clamping assemblies 250. The feeding hopper 210 has a feeding chamber 211 with a top opening, and a first discharge port 212 communicating with the feeding chamber 211 is opened at the bottom of the feeding hopper 210. The opening and closing assembly 220 is disposed at the first discharge port 212 to control the opening or closing of the first discharge port 212. The two weighing sensors 230 are disposed opposite to each other on the feeding hopper 210. On both sides of the 0, the weighing hopper 240 is disposed below the feeding hopper 210 and is detachably and fixedly connected to the two weighing sensors 230. The weighing hopper 240 has a weighing cavity 241 with a top opening. The top opening of the weighing cavity 241 communicates with the first discharge port 212. The bottom of the weighing hopper 240 has a second discharge port 242 communicating with the weighing cavity 241. The second discharge port 242 is used to cover the opening of the fertilizer bag. Each of the clamping components 250 is arranged circumferentially on the weighing hopper 210. The sides of the bucket 240 are used to clamp or loosen the opening of the fertilizer bag. The worker places the opening of an empty fertilizer bag onto the second discharge port 242, suspending the fertilizer bag in the air. Then, by manipulating each of the clamping components 250, each clamping component 250 clamps the opening of the fertilizer bag. Then, by manipulating the opening and closing component 220, the first discharge port 212 is opened, and the fertilizer in the feeding chamber 211 enters the weighing chamber 241 along the first discharge port 212, and then along the second discharge port 242... The fertilizer bag enters through the discharge port 242. The two weighing sensors 230 can weigh the fertilizer inside the fertilizer bag. When the fertilizer in the fertilizer bag reaches the preset weight, the opening and closing component 220 can control the closing of the first discharge port 212. The fertilizer in the feeding chamber 211 can no longer enter the weighing chamber 241 through the first discharge port 212. At this time, by operating each of the clamping components 250, each of the clamping components 250 releases the opening of the fertilizer bag, and the fertilizer bag containing fertilizer falls onto the conveying mechanism 100.

[0022] As a preferred embodiment, please refer to Figure 2 The diameter of the feeding chamber 211 gradually decreases from top to bottom, which facilitates the discharge of fertilizer from the first discharge port 212.

[0023] As a preferred embodiment, please refer to Figure 2 The diameter of the weighing chamber 241 gradually decreases from top to bottom, which facilitates the discharge of fertilizer from the second discharge port 242.

[0024] As a preferred embodiment, please refer to Figure 2 and Figure 3The opening and closing assembly 220 includes a discharge pipe 221, two opening and closing rods 222, and two opening and closing telescopic driving components 223. The upper end of the discharge pipe 221 is connected to the first discharge port 212. The discharge pipe 221 has a deformable structure. The two opening and closing rods 222 are arranged opposite to each other on both sides of the discharge pipe 221. The output ends of the two opening and closing telescopic driving components 223 are connected to the two opening and closing rods 222 one by one, and are used to drive the two opening and closing rods 222 to move closer to each other or further away from each other. When the two opening and closing rods 222 move closer to each other, they can clamp the discharge pipe 221 to cut it off. When the two opening and closing rods 222 move further away from each other, they can release the discharge pipe 221 to make it open. When the drive unit 223 is activated simultaneously, it can drive the two opening and closing rods 222 to move closer to each other or further away from each other. When the two opening and closing rods 222 move closer to each other, they can clamp the discharge pipe 221 to cut it off. When the two opening and closing rods 222 move further away from each other, they can release the discharge pipe 221 to allow it to conduct, thereby opening or closing the first discharge port 212. In this large-particle fertilizer packaging system, the discharge pipe 221 is provided, and the discharge pipe 221 has a deformable structure, which can play a buffering role and reduce the breakage rate. The opening and closing assembly 220 uses the clamping rod and the opening and closing telescopic drive unit 223 to clamp and open the discharge pipe 221 to perform the discharge and closing actions, further reducing the breakage rate.

[0025] In a preferred embodiment, the discharge tube 221 is a rubber tube, which allows for deformation.

[0026] As a preferred embodiment, please refer to Figure 2 and Figure 3The opening and closing assembly 220 further includes a mounting shell 224 and a mounting tube 225. The mounting shell 224 is detachably and fixedly connected to the feeding hopper 210. The mounting shell 224 has a mounting cavity 2241 with a bottom opening. The top of the mounting shell 224 has a mounting port 2242 communicating with the mounting cavity 2241. The mounting port 2242 is also communicating with the first discharge port 212. The mounting tube 225 is fixedly disposed in the mounting cavity 2241, and the upper end of the mounting tube 225 communicates with the mounting port 2242. The discharge tube 221 is disposed in the mounting cavity 224. Within 1, the upper end of the discharge pipe 221 is fixedly sleeved on the mounting pipe 225, both ends of the two opening and closing rods 222 are slidably connected to the mounting shell 224, and the fixed ends of the two opening and closing telescopic drive components 223 are fixedly connected to the mounting shell 224. The mounting shell 224 can support the two opening and closing telescopic drive components 223. The mounting pipe 225 facilitates the installation of the discharge pipe 221. At the same time, when the opening and closing assembly 220 is damaged, it is only necessary to remove the mounting shell 224 and replace it with a new opening and closing assembly 220.

[0027] As a preferred embodiment, please refer to Figure 3 Each of the two opposite sidewalls of the mounting housing 224 has a sliding groove 2243 extending horizontally. Both ends of the two opening and closing rods 222 are slidably connected to the two sliding grooves 2243 one by one. The sliding grooves 2243 can guide the movement of the opening and closing rods 222, making the movement of the opening and closing rods 222 more stable.

[0028] As a preferred embodiment, please refer to Figure 2The clamping assembly 250 includes a fixed clamping block 251, a movable clamping block 252, a movable rod 253, and a clamping telescopic drive component 254. The fixed clamping block 251 is fixedly connected to the weighing hopper 240. The movable clamping block 252 corresponds to the fixed clamping block 251 and cooperates with the fixed clamping block 251 to clamp or loosen the opening of the fertilizer bag. The upper end of the movable rod 253 is hinged to the weighing hopper 240, and the lower end of the movable rod 253 is fixedly connected to the movable clamping block 252. The fixed end of the clamping telescopic drive component 254 is hinged to the weighing hopper 240. Next, the output end of the clamping telescopic drive 254 is hinged to the middle of the movable rod 253, which is used to drive the movable rod 253 to rotate around its upper rotation axis, so that the movable clamping block 252 abuts against or separates from the fixed clamping block 251. When the clamping telescopic drive 254 is activated, it drives the movable rod 253 to rotate around its upper rotation axis, which can make the movable clamping block 252 abut against or separate from the fixed clamping block 251. When the movable clamping block 252 separates from the fixed clamping block 251, they together loosen the opening of the fertilizer bag.

[0029] In a preferred embodiment, both the fixed clamping block 251 and the movable clamping block 252 are made of materials with a high coefficient of friction, which can improve the clamping effect.

[0030] In a preferred embodiment, the bagging mechanism 200 further includes a stirring assembly, which is disposed on the feeding hopper 210 and used to stir the fertilizer granules in the feeding chamber 211 to prevent the fertilizer granules from clogging during the feeding process. The stirring assembly is not shown in the figure.

[0031] In a preferred embodiment, the stirring assembly includes a stirring paddle and a rotation drive. The stirring paddle is disposed in the feeding chamber 211, and the output end of the rotation drive is connected to the upper end of the stirring paddle to drive the stirring paddle to rotate, so that the stirring paddle stirs the fertilizer granules in the feeding chamber 211. When the rotation drive is activated, it drives the stirring paddle to rotate. During the rotation of the stirring paddle, the fertilizer granules in the feeding chamber 211 can be stirred, preventing the fertilizer granules from clogging during the feeding process.

[0032] In a preferred embodiment, the rotation drive component can be a suitable type of motor directly connected to the upper end of the stirring paddle, or it can be a speed reducer, sliding assembly, or gear set indirectly connected to the upper end of the stirring paddle.

[0033] As a preferred embodiment, please refer to Figure 1 and Figure 4The large-particle fertilizer packaging system further includes a limiting mechanism 500, which is disposed between the bagging mechanism 200 and the sealing mechanism 300, and below the straightening mechanism 400. The limiting mechanism 500 includes two limiting plates 510 and two limiting telescopic drive members 520. The two limiting plates 510 are arranged horizontally opposite each other and extend along the length of the conveying mechanism 100. The output ends of the two limiting telescopic drive members 520 are connected to the two limiting plates 510 one-to-one, for driving the conveying mechanism 100. The limiting plate 510 moves horizontally along the width direction of the conveying mechanism 100 to adjust the distance between the two limiting plates 510. The two limiting telescopic drive members 520 are activated simultaneously, which can drive the corresponding limiting plate 510 to move horizontally along the width direction of the conveying mechanism 100, thereby reducing the distance between the two limiting plates 510. Both limiting plates 510 abut against the lower end of the fertilizer bag containing fertilizer, thereby limiting the fertilizer bag and preventing it from tilting laterally during the conveying process.

[0034] As a preferred embodiment, please refer to Figure 1 and Figure 2 The large-particle fertilizer packaging system further includes a frame 600, the feeding hopper 210 is fixed on the frame 600, and the two weighing sensors 230 are both fixed on the frame 600. The frame 600 can support the feeding hopper 210 and the two weighing sensors 230.

[0035] As a preferred embodiment, please refer to Figure 1 and Figure 4 The large-particle fertilizer packaging system further includes a support 700. The straightening plate 410 includes a first plate 411 and at least two first slide rods 412. One end of each first slide rod 412 is fixedly connected to the first plate 411, and the other end of each first slide rod 412 is slidably connected to the support 700 and can move horizontally along the width direction of the conveying mechanism 100. The fixed end of the straightening telescopic drive member 420 is fixedly connected to the support 700. The limiting plate 510 includes a second plate 511 and at least two second slide rods 512. One end of each of the two slide rods 512 is fixedly connected to the second plate 511, and the other end of each of the two slide rods 512 is slidably connected to the bracket 700 and can move horizontally along the width direction of the conveying mechanism 100. The fixed end of the limiting telescopic drive member 520 is fixedly connected to the bracket 700. The first slide rod 412 can guide the movement of the first plate 411, making the movement of the first plate 411 more stable. The second slide rod 512 can guide the movement of the second plate 511, making the movement of the second plate 511 more stable.

[0036] To better understand this utility model, the following is combined with... Figure 1 - Figure 4 The working principle of the technical solution of this utility model will be described in detail below: In use, the worker places the opening of an empty fertilizer bag over the second discharge port 242, suspending the fertilizer bag in the air. Then, all the clamping telescopic drive components 254 are activated simultaneously, driving the corresponding movable rod 253 to rotate forward around its upper rotation axis. This allows each movable clamping block 252 to abut against its corresponding fixed clamping block 251. When the movable clamping block 252 abuts against the fixed clamping block 251, they together clamp the opening of the fertilizer bag. Next, the two opening and closing telescopic drive components 223 are activated simultaneously, driving the two opening and closing rods 222 to move away from each other. During this process, the discharge pipe 221 can be released, allowing the discharge pipe 221 to... The circuit is activated, opening the first discharge port 212. Fertilizer in the feeding chamber 211 enters the weighing chamber 241 via the first discharge port 212 and the discharge pipe 221, then enters the fertilizer bag via the second discharge port 242. The two weighing sensors 230 weigh the fertilizer in the fertilizer bag. When the fertilizer in the fertilizer bag reaches a preset weight, the two opening and closing telescopic drive components 223 are activated simultaneously, driving the two opening and closing rods 222 to move closer together. During this process, the two opening and closing rods 222 clamp the discharge pipe 221, cutting it off and closing the first discharge port 212. Fertilizer in the feeding chamber 211 can no longer flow through the first discharge port. 212. When the material discharge pipe 221 enters the weighing chamber 241, each of the clamping telescopic drive components 254 is activated simultaneously. Each of the clamping telescopic drive components 254 drives the corresponding movable rod 253 to rotate in the opposite direction around its upper rotating shaft, which can separate each of the movable clamping blocks 252 from the corresponding fixed clamping blocks 251. When the movable clamping blocks 252 and the fixed clamping blocks 251 separate, they jointly release the opening of the fertilizer bag, and the fertilizer bag containing fertilizer falls onto the conveying mechanism 100. The conveying mechanism 100 conveys the fertilizer bag containing fertilizer to the sealing mechanism 300, and the sealing mechanism 300 seals the opening of the fertilizer bag. The conveying mechanism 100 then conveys the fertilizer bag containing fertilizer to the weighing chamber 241. During the sealing process of the sealing mechanism 300, the two straightening telescopic drive members 420 are activated simultaneously. These two drive members 420 can drive the corresponding straightening plates 410 to move horizontally along the width direction of the conveying mechanism 100, reducing the distance between the two straightening plates 410. Both straightening plates 410 abut against the opening of the fertilizer bag, thus straightening the opening of the fertilizer bag and assisting in feeding the opening of the fertilizer bag into the sealing opening of the sealing mechanism 300, facilitating the sealing of the fertilizer bag opening. Simultaneously, the two limiting telescopic drive members 520 are activated, driving the corresponding limiting plates 510 to move horizontally along the width direction of the conveying mechanism 100.This reduces the distance between the two limiting plates 510, and both limiting plates 510 abut against the lower end of the fertilizer bag containing fertilizer, thus limiting the fertilizer bag and preventing it from tipping over during transport. The worker only needs to place the opening of the next empty fertilizer bag onto the feeding end of the bagging mechanism 200. This large-particle fertilizer packaging system can straighten the opening of the fertilizer bag and assist in feeding the opening of the fertilizer bag into the sealing opening of the sealing mechanism 300, eliminating the need for manual operation. This avoids the situation where, just as the worker places the opening of the next empty fertilizer bag onto the feeding end of the bagging mechanism 200, the previous fertilizer-filled bag has already passed the sealing mechanism 300, preventing the sealing mechanism 300 from sealing the fertilizer bag properly.

[0037] The large-particle fertilizer packaging system provided by this utility model has the following beneficial effects: (1) In the production of extra-large granular fertilizer, during the process of feeding, weighing and bagging, the breakage rate of extra-large granules fed by traditional feeding equipment is very high, which cannot meet the customer requirements. This large granular fertilizer packaging system is equipped with the feeding pipe 221, and the feeding pipe 221 has a deformable structure, which can play a buffering role and reduce the breakage rate. The opening and closing component 220 adopts the design of the clamping rod and the opening and closing telescopic drive component 223 to clamp and open the feeding pipe 221 to perform feeding and closing actions, which further reduces the breakage rate. (2) In this large-particle fertilizer packaging system, both of the limiting plates 510 abut against the lower end of the fertilizer bag containing fertilizer, thereby limiting the fertilizer bag and preventing it from tilting laterally during transportation. (3) This large-particle fertilizer packaging system can straighten the opening of the fertilizer bag containing fertilizer and assist in feeding the opening of the fertilizer bag into the sealing opening of the sealing mechanism 300. No manual operation is required, which avoids the situation where the staff just put the opening of the next empty fertilizer bag onto the feeding end of the bagging mechanism 200, and the previous fertilizer bag has already passed the sealing mechanism 300, so the sealing mechanism 300 cannot seal the fertilizer bag normally.

[0038] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A large-particle fertilizer packaging system, characterized in that, include: Conveying mechanism; A bagging mechanism is located at the upstream end of the conveying mechanism. It is used to clamp or loosen the opening of the fertilizer bag and to quantitatively fill the fertilizer bag with fertilizer. A sealing mechanism is located at the downstream end of the conveying mechanism and is used to seal the opening of the fertilizer bag. A straightening mechanism is disposed between the bagging mechanism and the sealing mechanism. It includes two straightening plates and two straightening telescopic drive members. The two straightening plates are arranged horizontally opposite each other and extend along the length direction of the conveying mechanism. The output ends of the two straightening telescopic drive members are connected to the two straightening plates one-to-one to drive the straightening plates to move horizontally along the width direction of the conveying mechanism, so as to adjust the distance between the two straightening plates.

2. The large-particle fertilizer packaging system according to claim 1, characterized in that, The bagging mechanism includes a feeding hopper, an opening and closing assembly, two weighing sensors, a weighing hopper, and multiple clamping assemblies. The feeding hopper has a feeding chamber with an opening at the top, and a first discharge port communicating with the feeding chamber is opened at the bottom of the feeding hopper. The opening and closing assembly is located at the first discharge port to control the opening or closing of the first discharge port. The two weighing sensors are arranged opposite each other on both sides of the feeding hopper. The weighing hopper is located below the feeding hopper and is detachably and fixedly connected to both weighing sensors. The weighing hopper has a weighing chamber with an opening at the top, and the opening at the top of the weighing chamber communicates with the first discharge port. A second discharge port communicating with the weighing chamber is opened at the bottom of the weighing hopper. The second discharge port is used for the opening of the fertilizer bag to be fitted onto it. Each of the clamping assemblies is arranged circumferentially on the side of the weighing hopper and is used to clamp or release the opening of the fertilizer bag.

3. The large-particle fertilizer packaging system according to claim 2, characterized in that, The opening and closing assembly includes a discharge pipe, two opening and closing rods, and two opening and closing telescopic driving components. The upper end of the discharge pipe is connected to the first discharge port. The discharge pipe has a deformable structure. The two opening and closing rods are arranged opposite to each other on both sides of the discharge pipe. The output ends of the two opening and closing telescopic driving components are connected to the two opening and closing rods one-to-one, and are used to drive the two opening and closing rods to move closer to each other or further away from each other. When the two opening and closing rods move closer to each other, they can clamp the discharge pipe to cut it off. When the two opening and closing rods move further away from each other, they can release the discharge pipe to allow it to conduct.

4. The large-particle fertilizer packaging system according to claim 3, characterized in that, The discharge tube is a rubber tube.

5. The large-particle fertilizer packaging system according to claim 3, characterized in that, The opening and closing assembly further includes a mounting shell and a mounting tube. The mounting shell is detachably and fixedly connected to the feeding hopper. The mounting shell has a mounting cavity with a bottom opening. The top of the mounting shell has a mounting port communicating with the mounting cavity. The mounting port is also communicating with the first discharge port. The mounting tube is fixedly disposed in the mounting cavity, and the upper end of the mounting tube is communicating with the mounting port. The discharge tube is disposed in the mounting cavity, and the upper end of the discharge tube is fixedly sleeved on the mounting tube. Both ends of the two opening and closing rods are slidably connected to the mounting shell. The fixed ends of the two opening and closing telescopic drive components are fixedly connected to the mounting shell.

6. The large-particle fertilizer packaging system according to claim 5, characterized in that, A sliding groove is provided on each of the two opposite side walls of the mounting housing. The sliding groove extends horizontally, and the two ends of the two opening and closing rods are slidably connected to the two sliding grooves one by one.

7. The large-particle fertilizer packaging system according to claim 2, characterized in that, The clamping assembly includes a fixed clamping block, a movable clamping block, a movable rod, and a clamping telescopic drive component. The fixed clamping block is fixedly connected to the weighing hopper. The movable clamping block corresponds to the fixed clamping block and cooperates with the fixed clamping block to clamp or loosen the opening of the fertilizer bag. The upper end of the movable rod is hinged to the weighing hopper, and the lower end of the movable rod is fixedly connected to the movable clamping block. The fixed end of the clamping telescopic drive component is hinged to the weighing hopper, and the output end of the clamping telescopic drive component is hinged to the middle of the movable rod, for driving the movable rod to rotate around its upper rotation axis, so that the movable clamping block abuts against or separates from the fixed clamping block.

8. The large-particle fertilizer packaging system according to claim 2, characterized in that, The bagging mechanism also includes a stirring component, which is disposed on the feeding hopper and used to stir the fertilizer granules in the feeding chamber.

9. The large-particle fertilizer packaging system according to claim 8, characterized in that, The stirring assembly includes a stirring paddle and a rotating drive. The stirring paddle is disposed in the feeding chamber. The output end of the rotating drive is connected to the upper end of the stirring paddle and is used to drive the stirring paddle to rotate so that the stirring paddle stirs the fertilizer particles in the feeding chamber.

10. The large-particle fertilizer packaging system according to claim 1, characterized in that, It also includes a limiting mechanism, which is disposed between the bagging mechanism and the sealing mechanism and located below the straightening mechanism. The limiting mechanism includes two limiting plates and two limiting telescopic drive members. The two limiting plates are arranged horizontally opposite each other and both extend along the length direction of the conveying mechanism. The output ends of the two limiting telescopic drive members are connected to the two limiting plates one to one, and are used to drive the limiting plates to move horizontally along the width direction of the conveying mechanism to adjust the distance between the two limiting plates.

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