Automatic bagging equipment for concrete admixture

Abstract

The invention relates to automatic bagging equipment for concrete admixtures, relates to the technical field of bagging equipment, and solves the technical problems that when the admixtures are bagged, dust escapes, health is harmed, and conveying is affected due to hopper arching. The automatic bagging equipment for the concrete admixtures comprises a frame, a hopper, a feeding barrel, a discharging barrel, a discharging barrel and a conveying mechanism; a suction pipe is connected between the discharging barrel and the guiding barrel, the discharging barrel is sleeved with a storage barrel, the storage barrel is internally connected with a pipe barrel, the pipe barrel is internally connected with a piston, the top of the piston is connected with a push rod, the bottom of the inner wall of the storage barrel is connected with an electric push rod, and the output end of the electric push rod is connected with a top plate; according to the dust collection device, dust escaping after an additive is bagged is collected, a large amount of pollution to the working environment due to the fact that the dust overflows from an opening of a packaging bag is effectively reduced, the collected dust can be sprayed back into the packaging bag in the next bag, and the situation that the collected dust falls due to the gravity effect is prevented by closing the suction pipe in the suction intermittent period.

Description

Technical Field

[0001] This invention relates to the field of bagging equipment technology, specifically an automatic bagging equipment for concrete admixtures. Background Technology

[0002] Concrete admixtures are substances added to improve and adjust the performance of concrete. The application of concrete admixtures in engineering is receiving increasing attention. The addition of admixtures plays a certain role in improving the performance of concrete. To facilitate the transportation and sale of admixtures, it is usually necessary to use automatic bagging equipment to bag powdered admixtures.

[0003] Existing automatic bagging equipment typically requires operators to manually place the bag opening onto the outlet of the feeding cylinder, then use a pair of cylinder-driven robotic arms to fix it in place, and finally fill a measured amount of additive into the bag to complete the bagging operation.

[0004] However, after the additives are filled into the packaging bags, when the clamping device releases the bag opening, the residual air pressure inside the bag and the large amount of fine dust stirred up by the falling material will instantly escape upwards and around the bag opening. This large amount of dust not only accumulates on the floor and equipment surfaces of the production workshop, creating a cleaning burden, but also causes damage to the operator's health if inhaled for a long time.

[0005] Furthermore, when the admixtures stored in the hopper are left to stand for a long time, powdered admixtures, especially those that are damp or have static electricity, are very likely to attract and overlap each other in the hopper to form a solid arch structure. This phenomenon will prevent the material from falling naturally by gravity, and the operator must frequently use a wooden mallet to knock on the side wall of the hopper, or be forced to stop the machine and manually tamp it, which will affect the subsequent admixture conveying and bagging operations.

[0006] Based on this, the present invention provides an automatic bagging device for concrete admixtures to solve the above problems. Summary of the Invention

[0007] In view of the above situation and to overcome the defects of the prior art, the present invention provides an automatic bagging device for concrete admixtures. The present invention has a novel structure and ingenious design, and effectively solves the technical problems of large amounts of dust escaping during admixture bagging, which may harm health, and hopper arching, which may affect conveying.

[0008] An automatic bagging device for concrete admixtures includes a frame, a hopper, a feeding cylinder, a discharging cylinder, a discharge cylinder, and a conveying mechanism. A guide cylinder is fixedly connected inside the discharge cylinder, and the top of the guide cylinder matches the discharge port at the bottom of the discharging cylinder. Multiple suction pipes are fixedly connected between the discharge cylinder and the guide cylinder. Two receiving cylinders are sleeved on the discharging cylinder, and multiple tubes are fixedly connected inside each of the two receiving cylinders. The bottom ends of the multiple tubes are respectively connected to the top ends of the multiple suction pipes. A piston is slidably connected inside each of the multiple tubes, and a push rod is fixedly connected to the top of each of the multiple pistons. Electric push rods are fixedly connected to the bottom of the inner walls of each of the two receiving cylinders, and top plates are fixedly connected to the output ends of each of the two electric push rods. The multiple push rods are respectively fixedly connected to the bottom of the two top plates.

[0009] Preferably, both of the receiving cylinders are located above the discharge cylinder, and the two receiving cylinders are fixed to the discharge cylinder by a tightening strap. Each of the multiple suction pipes is equipped with a valve, and a rotating ring is fixedly connected to each of the multiple valves. A filter screen is fixedly connected inside each of the multiple rotating rings, and the multiple filter screens are located inside the valves.

[0010] Preferably, each of the feed inlets at the bottom of the plurality of suction tubes is fixedly connected to a fixing ring, each of the plurality of fixing rings is fixedly connected to a support rod, and each of the plurality of fixing rings is provided with a rotatable left baffle and a right baffle, and a flexible baffle is fixedly connected between the left baffle and the right baffle.

[0011] Preferably, a torsion spring is sleeved on the support rod inside the fixed ring. The two ends of the torsion spring are fixedly connected to the left baffle and the right baffle, respectively. A rotating rod is fixedly connected to the side of the left baffle and the right baffle near the torsion spring. The other ends of the two rotating rods are rotatably connected to the support rod. A protective shell is fixedly connected to the support rod. The protective shell cooperates with the torsion spring.

[0012] Preferably, a rotating shaft is rotatably connected inside the feeding cylinder, and an auger blade is fixedly connected to the rotating shaft. The auger blade cooperates with the feeding cylinder. A support frame is fixedly connected to the frame, and a support shaft is rotatably connected to the support frame. One end of the rotating shaft passes through the feeding cylinder and is fixedly connected to a driving bevel gear. A driven bevel gear is fixedly connected to one end of the support shaft near the rotating shaft. The driving bevel gear and the driven bevel gear mesh with each other.

[0013] Preferably, a fixed cylinder is fixedly connected to the end of the support shaft away from the rotating shaft. The fixed cylinder has two inclined sliding grooves and two straight sliding grooves. The two inclined sliding grooves are respectively connected to the two straight sliding grooves to form a traveling track. A sliding frame is slidably connected to the fixed cylinder. A slider is fixedly connected to the side of the sliding frame near the fixed cylinder. The slider is slidably connected in the track formed by the inclined sliding grooves and the straight sliding grooves.

[0014] Preferably, two slide rods are fixedly connected to the side of the support frame away from the driven bevel gear. Slide plates are slidably connected to each of the two slide rods. The two slide plates are located on both sides of the sliding frame. The two sides of the sliding frame are fixedly connected to the two slide plates. Limiting plates are fixedly connected to the other ends of the two slide rods. Springs are sleeved on each of the two slide rods. The two springs are located between the two limiting plates and the slide plates.

[0015] Preferably, a striking head is fixedly connected to one side of the sliding frame, and a vibrating plate is fixedly connected to the side of the hopper near the striking head, with the striking head cooperating with the vibrating plate.

[0016] Preferably, a fixed frame is fixedly connected to the discharge cylinder, and rotating frames are rotatably connected to both sides of the fixed frame. Mounting plates are fixedly connected to the bottom of the two rotating frames, and sealing rings are fixedly connected to the two mounting plates. The two sealing rings are mated with the surface of the discharge cylinder, and a hydraulic telescopic rod is rotatably connected between the two rotating frames.

[0017] The present invention has the following technical effects.

[0018] 1. This invention uses a suction tube, tubing, electric push rod, and piston to collect the large amount of dust that escapes after the admixture is bagged, effectively reducing the pollution of the working environment and the harm to the health of workers caused by the large amount of dust overflowing from the bag opening. The collected dust can be sprayed back into the bag during the next bagging. Through the support rod, left baffle, right baffle, and torsion spring, it can automatically close during the suction interval to prevent the large amount of collected dust from falling due to gravity.

[0019] 2. This invention uses valves and filter screens to block the extracted dust, forming a barrier against the inhaled dust and preventing a large amount of dust from rising and adhering to the piston and inner wall of the tube, thereby reducing the decrease in suction efficiency caused by dust pollution. The rotating frame, sealing ring and hydraulic telescopic rod clamp the bag opening of the packaging bag to assist in the bagging operation of additives.

[0020] 3. This invention uses a support shaft, a fixed cylinder, a spring, and a striking head to continuously strike the admixture powder that is caked or arched in the hopper. This effectively breaks up the caked and arched powder in the hopper, allowing the admixture powder to fall evenly and smoothly into the upper feed cylinder under the action of gravity, thereby ensuring a continuous and stable supply of material to the lower feed cylinder. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the feed cylinder, rotating shaft and auger blades in this invention; Figure 3 This is a schematic diagram of the assembly structure of the feeding cylinder, the receiving cylinder, and the tightening belt in this invention; Figure 4 This is a schematic diagram of the assembly structure of the discharge cylinder, rotating frame and sealing ring in this invention; Figure 5 This is a schematic diagram of the assembly structure of the suction tube, tubing, electric push rod, and top plate in this invention; Figure 6 This is a schematic diagram of the assembly structure of the suction tube and valve in this invention; Figure 7 This is a schematic diagram of the assembly structure of the top plate, push rod, and piston in this invention; Figure 8 This is a schematic diagram of the assembly structure of the valve, rotating ring, and filter screen in this invention; Figure 9 This is a schematic diagram of the assembly structure of the support rod, left baffle, right baffle and torsion spring in this invention; Figure 10 This is a schematic diagram of the assembly structure of the left baffle, right baffle, and flexible baffle belt in this invention; Figure 11 This is a schematic diagram of the assembly structure of the rotating shaft, driving bevel gear, support shaft and driven bevel gear in this invention; Figure 12 This is a schematic diagram of the assembly structure of the fixed cylinder, sliding frame, slide rod and spring in this invention.

[0022] Reference numerals: 1-Frame; 2-Hopper; 3-Feeding cylinder; 4-Feeding cylinder; 5-Discharge cylinder; 6-Conveying mechanism; 7-Fixed frame; 8-Rotating frame; 9-Mounting plate; 10-Sealing ring; 11-Hydraulic telescopic rod; 12-Collection cylinder; 13-Tightening belt; 14-Guide cylinder; 15-Suction pipe; 16-Tube cylinder; 17-Electric push rod; 18-Top plate; 19-Push rod; 20-Piston; 21-Valve; 22-Rotating ring; 23-Filter screen; 24-Fixed ring; 25- 26-Support rod; 27-Left baffle; 28-Right baffle; 29-Flexible baffle; 30-Torsion spring; 31-Protective shell; 32-Rotating shaft; 33-Auger blade; 34-Driving bevel gear; 35-Support frame; 36-Support shaft; 37-Driven bevel gear; 38-Fixed cylinder; 39-Slanted slide groove; 40-Straight slide groove; 41-Slide rod; 42-Limiting plate; 43-Spring; 44-Sliding plate; 45-Sliding frame; 46-Slider; 47-Impact head; 48-Vibration plate. Detailed Implementation

[0023] The foregoing and other technical contents, features and effects of the present invention are described in conjunction with the appendix below. Figures 1 to 12The detailed description of the embodiments will make this clear. All references to the following embodiments are made with reference to the accompanying drawings.

[0024] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings.

[0025] This invention relates to an automatic bagging device for concrete admixtures. Existing automatic bagging devices, when the bag is loosened after filling the concrete admixture, cause residual air pressure inside the bag to cause dust to escape instantly from the packaging bag, resulting in environmental pollution and posing a health hazard to the operators.

[0026] Furthermore, when the hopper 2 containing the additive powder is left to stand, the additive is prone to arching and clogging inside the hopper 2, resulting in poor material discharge, requiring manual intervention and affecting production.

[0027] As an example, such as Figure 1 , Figure 4 , Figure 5 and Figure 7 As shown, the present invention includes a frame 1, a hopper 2, an upper feeding cylinder 3, a lower feeding cylinder 4, a discharge cylinder 5, and a conveying mechanism 6. A guide cylinder 14 is fixedly connected inside the discharge cylinder 5. The guide cylinder 14 and the discharge cylinder 5 are located on the same center line. The top of the guide cylinder 14 matches the discharge port at the bottom of the lower feeding cylinder 4. Multiple suction pipes 15 are fixedly connected between the discharge cylinder 5 and the guide cylinder 14. The multiple suction pipes 15 are evenly distributed within the annular space formed by the discharge cylinder 5 and the guide cylinder 14. Two receiving cylinders 12 are sleeved on the lower feeding cylinder 4. The receiving cylinders 12 are semi-annular. Multiple tubes 16 are fixedly connected inside each of the two receiving cylinders 12. The two receiving cylinders 12 cooperate to form an annular structure. Tubes 16 are evenly distributed within the two collection tubes 12 and correspond to the multiple suction tubes 15 below. The bottom ends of the multiple tubes 16 are connected to the top ends of the multiple suction tubes 15. A piston 20 is slidably connected inside each of the multiple tubes 16, and the piston 20 is in contact with the inner wall of its tube 16. A push rod 19 is fixedly connected to the top of each of the multiple pistons 20. An electric push rod 17 is fixedly connected to the bottom of the inner wall of each of the two collection tubes 12. A top plate 18 is fixedly connected to the output end of each of the two electric push rods 17. The top plate 18 is arc-shaped, and multiple push rods 19 are fixedly connected to the bottom of the two top plates 18, that is, multiple push rods 19 are connected below each top plate 18.

[0028] It should be noted that the number of suction tubes 15 and tubes 16 can be 4-12.

[0029] It should be noted that, in order to ensure the suction efficiency of the suction tube 15, the push rod 19 is selected to have a large thrust and a long stroke, the tube 16 and piston 20 are selected to have a large diameter, and the suction tube 15 is selected to have a smaller diameter than the tube 16.

[0030] In this embodiment, during use, the opening of the packaging bag is attached to the discharge position at the bottom of the discharge cylinder 5. Then, the powder of the additive to be bagged is put into the hopper 2. The powder falls from there and enters the upper cylinder 3. The upper cylinder 3 conveys the additive upward until it moves to the lower cylinder 4 and falls into it. The powder falls through the lower cylinder 4 and then through the guide cylinder 14 in the discharge cylinder 5, and finally falls into the packaging bag.

[0031] When bagging is complete, the weighing structure on the conveying structure 6 sends a signal to activate the two electric push rods 17, causing their output ends to extend synchronously. This drives the two top plates 18 to rise within their respective receiving cylinders 12, which in turn pulls multiple push rods 19 to rise synchronously within their respective tubes 16. The multiple push rods 19 then drive multiple pistons 20, causing them to move upwards in close contact with the inner wall of the tubes 16. The rise of the pistons 20 creates a negative pressure in the cavity of the tube 16 below them, thereby drawing air from the connected suction pipe 15. The suction pipe 15 thus extracts most of the dust that has escaped from the packaging bag. This effectively reduces or minimizes the amount of floating dust overflowing from the bag and polluting the environment around the bag opening when the packaging bag is removed from the discharge cylinder 5. After the electric push rod 17 extends to the set length, it stops extending and the suction operation stops. After the next packaging bag is replaced, the electric push rod 17 shortens, causing the top plate 18 and the push rod 19 below it to descend in the tube 16, pushing the piston 20 down in the tube 16, pushing the dust in the suction tube 15, so that the dust is discharged from the bottom of the suction tube 15 and enters the packaging bag, which facilitates the next continuous suction operation. After the electric push rod 17 shortens, it causes the piston 20 to move to the initial position and then stops working.

[0032] It should be noted that the electric actuator 17 is connected to a controller and a power supply.

[0033] It should be noted that, because dust particles are small and disperse in all directions, the suction tube 15 can suck up most of the large amounts of dust, thereby reducing or minimizing the dispersed dust, rather than completely avoiding the dust.

[0034] As an example, such as Figure 3 , Figure 6 and Figure 8 As shown, both receiving cylinders 12 are located above the discharge cylinder 5. The two receiving cylinders 12 are fixed to the discharge cylinder 4 by the tightening strap 13. Each of the multiple suction pipes 15 is equipped with a valve 21. Each of the multiple valves 21 is fixedly connected with a rotating ring 22. Each of the multiple rotating rings 22 is fixedly connected with a filter screen 23. Each of the multiple filter screens 23 is located inside the valve 21.

[0035] In this embodiment, the inhaled dust enters from the bottom of the suction pipe 15 and rises within the suction pipe 15 with the airflow. When the dust comes into contact with the filter screen 23, it is effectively blocked, reducing the probability of the dust rising into the tube 16 within the suction pipe 15, reducing contact with the piston 20 inside the tube 16, and reducing the impact on subsequent suction operations.

[0036] It should be noted that the filter screen 23 can be selected as a precision filter screen, HEPA filter screen, sintered metal filter screen, etc.

[0037] As an example, such as Figure 6 , Figure 9 and Figure 10 As shown, each of the multiple suction tubes 15 has a fixed ring 24 at its bottom inlet. Each of the multiple fixed rings 24 has a fixed support rod 25. Each of the multiple fixed rings 24 has a rotatable left baffle 27 and right baffle 28. Both the left baffle 27 and right baffle 28 are semi-circular. A flexible baffle band 29 is fixedly connected between the left baffle 27 and right baffle 28. The left baffle 27, right baffle 28 and flexible baffle band 29 cooperate to form a circle.

[0038] It should be noted that the left baffle 27 and the right baffle 28 are initially closed. They are made of lightweight materials to facilitate opening when being suctioned. The materials can be PP, PE, PET, etc.

[0039] As an example, such as Figure 9 As shown, a torsion spring 30 is sleeved on the support rod 25 inside the fixed ring 24. The two ends of the torsion spring 30 are fixedly connected to the left baffle 27 and the right baffle 28 respectively. A rotating rod 26 is fixedly connected to the side of the left baffle 27 and the right baffle 28 near the torsion spring 30. The other ends of the two rotating rods 26 are rotatably connected to the support rod 25. A protective shell 31 is fixedly connected to the support rod 25. The protective shell 31 is semi-circular. The protective shell 31 cooperates with the torsion spring 30 to shield and protect the torsion spring 30, reducing the amount of dust drawn in and entering the torsion spring 30.

[0040] It should be noted that the torsion spring 30 can be one or two, that is, one end is fixed to the two rotating rods 26 respectively, and the other end is fixed separately.

[0041] In this embodiment, when the piston 20 inside the tube 16 rises and evacuates the suction tube 15, a negative pressure is generated inside the suction tube 15. This negative pressure draws in the left baffle 27 and right baffle 28 inside the fixing ring 24, causing them to tilt upwards. At this time, due to the rotational cooperation between the bottom rotating rod 26 and the support rod 25, a channel is formed between the left baffle 27 and right baffle 28 and the inner wall of the suction tube 15, allowing the dust sucked in from the bottom of the suction tube 15 to enter smoothly. As the left baffle 27 and right baffle 28 rotate upwards, they cause the torsion spring 30 on the support rod 25 to undergo torsional deformation. When the piston 20 stops rising and the suction stops, the elastic force accumulated by the torsion spring 30 will drive the left baffle 27 and right baffle 28 to rotate in the opposite direction and reset, covering the bottom of the suction tube 15 again. This can reduce the dust in the suction tube 15 from falling downwards and escaping due to gravity when not performing suction operations.

[0042] When the piston 20 descends, its downward thrust causes the left baffle 27 and right baffle 28 to tilt downwards, forming a channel again to facilitate the discharge of accumulated dust. During this downward rotation, the torsion spring 30 also undergoes elastic deformation. When the piston 20 stops descending, the torsion spring 30 drives the left baffle 27 and right baffle 28 to rotate in the opposite direction to reset, closing the bottom and reducing the amount of external dust entering the suction pipe 15 during the bagging process.

[0043] It should be noted that the electric push rod 17, left baffle 27, and right baffle 28 are designed to ensure that dust is drawn into the suction pipe 15 and discharged during the next bagging, thus avoiding material waste. At this time, the dust is still the material itself, not waste. If the suction pipe 15 is a single suction method, the suctioned material cannot be discharged again, but the suctioned dust is the material itself, not waste, which will cause material waste. Moreover, if it is a single suction method, the suction power source needs to be kept continuously running. If the power source is turned off, the dust that has not been sucked away and remains in the suction pipe 15 will automatically fall off without the power source, causing waste or re-polluting the environment. If the power source is continuously running, during the bagging interval, dust that is not the material itself will be sucked in, causing the dust absorbed at the end of the power source to mix with dust that is not the material, thus turning the collected dust into waste that cannot be reused.

[0044] Therefore, when the present invention is used to extract dust, the electric push rod 17 does not need to be continuously started. The extracted dust can be discharged in time during the next bagging, which can reduce the dispersion of dust and reduce material waste.

[0045] As an example, such as Figure 2 and Figure 11As shown, a rotating shaft 32 is rotatably connected inside the feeding cylinder 3. A motor is connected to the top of the feeding cylinder 3. One end of the rotating shaft 32 is connected to the output end of the motor. An auger blade 33 is fixedly connected to the rotating shaft 32. The auger blade 33 cooperates with the feeding cylinder 3. A support frame 35 is fixedly connected to the frame 1. A support shaft 36 is rotatably connected to the support frame 35. One end of the rotating shaft 32 passes through the feeding cylinder 3 and is fixedly connected to a driving bevel gear 34. A driven bevel gear 37 is fixedly connected to the end of the support shaft 36 near the rotating shaft 32. The driving bevel gear 34 and the driven bevel gear 37 mesh with each other.

[0046] It should be noted that the motor is connected to a controller and a power supply.

[0047] As an example, such as Figure 11 and Figure 12 As shown, a fixed cylinder 38 is fixedly connected to the end of the support shaft 36 away from the rotating shaft 32. Two inclined slide grooves 39 and two straight slide grooves 40 are provided on the fixed cylinder 38. The two inclined slide grooves 39 and two straight slide grooves 40 are distributed at intervals on the fixed cylinder 38. The two inclined slide grooves 39 are respectively connected to the two straight slide grooves 40 to form a traveling track. A sliding frame 45 is slidably connected to the fixed cylinder 38. The sliding frame 45 is annular. A slider 46 is fixedly connected to the side of the sliding frame 45 near the fixed cylinder 38. The end of the slider 46 that slides in the traveling track is circular. The slider 46 is slidably connected in the track formed by the cooperation of the inclined slide grooves 39 and the straight slide grooves 40.

[0048] It should be noted that the junction of the inclined slide 39 and the straight slide 40 has a slope that allows for smooth passage.

[0049] As an example, such as Figure 12 As shown, two slide rods 41 are fixedly connected to the side of the support frame 35 away from the driven bevel gear 37. Slide plates 44 are slidably connected to both slide rods 41. Both slide plates 44 are annular and are located on both sides of the sliding frame 45. The two sides of the sliding frame 45 are fixedly connected to the two slide plates 44. Limiting plates 42 are fixedly connected to the other end of both slide rods 41. Springs 43 are sleeved on both slide rods 41 and are located between the two limiting plates 42 and the slide plates 44.

[0050] As an example, such as Figure 11 and Figure 12 As shown, a striking head 47 is fixedly connected to one side of the sliding frame 45, and a vibrating plate 48 is fixedly connected to the side of the hopper 2 near the striking head 47. The striking head 47 and the vibrating plate 48 cooperate with each other.

[0051] In this embodiment, after the packaging bag opening is fitted onto the discharge cylinder 5, the motor is started, driving the rotating shaft 32 to rotate inside the upper cylinder 3. The rotating shaft 32 drives the auger blades 33 on it to rotate, realizing the upward conveying of the additive powder in the hopper 2. During the conveying process, the rotating shaft 32 simultaneously drives the active bevel gear 34 located below the hopper 2 to rotate. The active bevel gear 34 meshes with the driven bevel gear 37, thereby driving the support shaft 36 to rotate on the support frame 35. When the support shaft 36 rotates, it drives the fixed cylinder 38 at one end to rotate. As the fixed cylinder 38 rotates, the rotation of the fixed cylinder 38 pushes the slider 46 on one side of the sliding frame 45 to slide along the inclined slide groove 39, thereby causing the sliding frame 45 to move away from the support frame 35 on the fixed cylinder 38. The sliding frame 45 drives the sliding plates 44 on both sides to slide on the two slide rods 41 respectively, and the two limiting plates 42 compress the springs 43 on the two slide rods 41, causing the springs 43 to undergo elastic deformation. As the fixed cylinder 38 continues to rotate, the slider 46 gradually moves to one end of the inclined slide groove 39 and enters the straight slide groove 40.

[0052] At this time, the slider 46 is no longer laterally constrained by the inclined slide groove 39, and the spring 43 quickly releases its elastic potential energy, pushing the sliding frame 45 to slide in the opposite direction within the fixed cylinder 38. The sliding frame 45 drives the striking head 47 to quickly strike the vibrating plate 48, thereby striking the hopper 2, causing the powder that has hardened in the hopper 2 to fall off and enter the feed cylinder 3. During the reverse sliding process of the sliding frame 45, the slider 46 on its side moves along the straight slide groove 40 until it reaches the other end of the straight slide groove 40 and enters the next inclined slide groove 39, preparing for the next striking operation. Through the continuous rotation of the fixed cylinder 38, the mechanical striking of the hopper 2 can be completed periodically, effectively preventing the powder from clogging in the hopper 2.

[0053] It should be noted that the present invention relies on the rotating shaft 32 of the existing technology to rotate without adding an additional power source. When the rotating shaft 32 is working, it indicates normal operation, and the striking head 47 works accordingly. When the rotating shaft 32 stops rotating, the striking head 47 stops immediately, reducing the waste of resources and without adding a complex mechanical structure, thus achieving significant beneficial effects.

[0054] It should be noted that this invention is not suitable for directly installing vibratory motors on the frame 1 or hopper 2, because the installation of vibratory motors requires the equipment itself to have a shock-absorbing effect, such as shock-absorbing springs between the equipment base and the working unit. Otherwise, direct installation on the frame 1 or hopper 2 will cause the equipment to be in a state of constant shaking during operation. This will affect the normal bagging process, cause the equipment to shift in position, and since the frame 1 and hopper 2 are rigidly connected without a shock-absorbing device between them, the vibratory motor will disrupt the stability between the frame 1 and hopper 2.

[0055] As an example, such as Figure 3 and Figure 4As shown, a fixed frame 7 is fixedly connected to the discharge cylinder 5. Rotating frames 8 are rotatably connected to both sides of the fixed frame 7. Mounting plates 9 are fixedly connected to the bottom of the two rotating frames 8. Sealing rings 10 are fixedly connected to the two mounting plates 9. The two sealing rings 10 are in contact with the surface of the discharge cylinder 5. A hydraulic telescopic rod 11 is rotatably connected between the two rotating frames 8. The hydraulic telescopic rod 11 is connected to the power supply and the controller.

[0056] In this embodiment, during the bagging operation, the worker places the bag opening onto the discharge cylinder 5, and the hydraulic telescopic rod 11 retracts to engage, driving the two rotating frames 8 to rotate synchronously in opposite directions on the fixed frame 7 until the sealing ring 10 at the bottom is tightly attached to the surface of the discharge cylinder 5, performing a clamping action on the bag and fixing the bag opening to ensure stable bagging. After bagging is completed, the hydraulic telescopic rod 11 extends, driving the rotating frames 8 to rotate in the opposite direction to reset, and the sealing ring 10 moves away from the discharge cylinder 5, releasing the bag opening and thus preparing for the fixing of the next bag.

[0057] Working principle of this invention: In use, the bag opening is placed on the discharge cylinder 5, and the hydraulic telescopic rod 11 is retracted, which drives the two sealing rings 10 to move towards each other. The two sealing rings 10 are tightly attached to the surface of the discharge cylinder 5, thereby clamping the bag. Then, the motor is started and drives the rotating shaft 32 to rotate in the upper cylinder 3, which in turn drives the auger blades 33 to rotate, conveying the additive in the hopper 2 upward. After the material reaches the lower cylinder 4, it falls into the bag through the guide cylinder 14.

[0058] At the moment the bagging is completed, the electric push rod 17 extends, pushing the piston 20 inside the tube 16 upward, creating a negative pressure inside the tube 16. This negative pressure acts on the suction tube 15, causing the left baffle 27 and right baffle 28 to rotate upward and tilt, forming a channel between them and the inner wall of the suction tube 15, facilitating the extraction of dust into the suction tube 15. The extracted dust is blocked by the filter screen 23, reducing the likelihood of it entering the tube 16 and contacting the piston 20, ensuring the suction effect. When the piston 20 stops moving, the left baffle 27 and right baffle 28 rotate in opposite directions to reset, preventing the large amount of collected dust from spilling out. When attaching the next packaging bag, the electric push rod 17 shortens, driving the piston 20 to descend inside the tube 16, pushing the dust accumulated in the suction tube 15 downward. The pressure causes the left baffle 27 and right baffle 28 to tilt downward and rotate, forming a discharge channel again, discharging the dust into the new packaging bag, thus achieving continuous dust recovery operation.

[0059] When the rotating shaft 32 rotates, the meshing of the driving bevel gear 34 and the driven bevel gear 37 drives the support shaft 36 and the fixed cylinder 38 to rotate synchronously on the support frame 35. The inclined slide groove 39 on the fixed cylinder 38 cooperates with the straight slide groove 40 to push the sliding frame 45 to move away from the support frame 35, squeezing the spring 43 on the slide rod 41. When the slider 46 on the sliding frame 45 slides into the straight slide groove 40, the compressed spring 43 is released instantly, driving the sliding frame 45 to rebound quickly in the opposite direction, driving the striking head 47 to hit the vibrating plate 48. The indirect impact causes the clumps of additives in the hopper 2 to be dispersed and fall, smoothly entering the feeding cylinder 3, ensuring smooth material supply.

[0060] The present invention has the following technical effects.

[0061] 1. This invention uses a suction pipe 15, a tube 16, an electric push rod 17, and a piston 20 to collect a large amount of dust that escapes after the admixture is bagged. This effectively reduces the pollution of the working environment and the harm to the health of workers caused by a large amount of dust overflowing from the bag opening. The collected dust can be sprayed back into the bag during the next bagging. The support rod 25, the left baffle 27, the right baffle 28, and the torsion spring 30 can automatically close during the suction interval to prevent the large amount of collected dust from falling due to gravity.

[0062] 2. The present invention uses valve 21 and filter screen 23 to block the extracted dust, forming a barrier against the inhaled dust and preventing a large amount of dust from rising and adhering to the piston 20 and the inner wall of the tube 16, thereby reducing the decrease in suction efficiency caused by dust pollution. The rotating frame 8, sealing ring 10 and hydraulic telescopic rod 11 are used to clamp the bag opening of the packaging bag, assisting in the bagging operation of additives.

[0063] 3. The present invention uses a support shaft 36, a fixed cylinder 38, a spring 43, and a striking head 47 to continuously strike the admixture powder that is caking or arching in the hopper 2. This can effectively break up the caking and arching formed in the hopper 2, so that the admixture powder falls evenly and smoothly into the upper feed cylinder 3 under the action of gravity, thereby ensuring a continuous and stable supply of material to the lower feed cylinder 4.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An automatic bagging device for concrete admixtures, comprising a frame (1), a hopper (2), a feeding cylinder (3), a discharging cylinder (4), a discharge cylinder (5), and a conveying mechanism (6), characterized in that, A guide cylinder (14) is fixedly connected inside the discharge cylinder (5). The top of the guide cylinder (14) is matched with the discharge port at the bottom of the discharge cylinder (4). Multiple suction tubes (15) are fixedly connected between the discharge cylinder (5) and the guide cylinder (14). Two receiving cylinders (12) are sleeved on the discharge cylinder (4). Multiple tubes (16) are fixedly connected inside each of the two receiving cylinders (12). The bottom ends of the multiple tubes (16) are respectively connected to the top ends of the multiple suction tubes (15). A piston (20) is slidably connected inside each of the multiple tubes (16). A push rod (19) is fixedly connected to the top of each of the multiple pistons (20). An electric push rod (17) is fixedly connected to the bottom of the inner wall of each of the two receiving cylinders (12). A top plate (18) is fixedly connected to the output end of each of the two electric push rods (17). The multiple push rods (19) are respectively fixedly connected to the bottom of the two top plates (18).

2. The automatic bagging equipment for concrete admixtures according to claim 1, characterized in that, Both of the two collection cylinders (12) are located above the discharge cylinder (5). The two collection cylinders (12) are fixed to the discharge cylinder (4) by the tightening strap (13). Each of the multiple suction pipes (15) is provided with a valve (21). Each of the multiple valves (21) is fixedly connected with a rotating ring (22). Each of the multiple rotating rings (22) is fixedly connected with a filter screen (23). Each of the multiple filter screens (23) is located inside the valve (21).

3. The automatic bagging equipment for concrete admixtures according to claim 1, characterized in that, Each of the multiple suction tubes (15) has a fixed ring (24) fixedly connected to its bottom inlet. Each of the multiple fixed rings (24) has a fixed support rod (25) fixedly connected inside. Each of the multiple fixed rings (24) has a rotatable left baffle (27) and right baffle (28) fixedly connected inside. A flexible baffle (29) is fixedly connected between the left baffle (27) and right baffle (28).

4. The automatic bagging equipment for concrete admixtures according to claim 3, characterized in that, A torsion spring (30) is sleeved on the support rod (25) inside the fixed ring (24). The two ends of the torsion spring (30) are fixedly connected to the left baffle (27) and the right baffle (28) respectively. A rotating rod (26) is fixedly connected to the side of the left baffle (27) and the right baffle (28) near the torsion spring (30). The other ends of the two rotating rods (26) are rotatably connected to the support rod (25). A protective shell (31) is fixedly connected to the support rod (25). The protective shell (31) cooperates with the torsion spring (30).

5. The automatic bagging equipment for concrete admixtures according to claim 1, characterized in that, A rotating shaft (32) is rotatably connected inside the feeding cylinder (3). An auger blade (33) is fixedly connected to the rotating shaft (32). The auger blade (33) cooperates with the feeding cylinder (3). A support frame (35) is fixedly connected to the frame (1). A support shaft (36) is rotatably connected to the support frame (35). One end of the rotating shaft (32) passes through the feeding cylinder (3) and is fixedly connected to a driving bevel gear (34). One end of the support shaft (36) near the rotating shaft (32) is fixedly connected to a driven bevel gear (37). The driving bevel gear (34) meshes with the driven bevel gear (37).

6. The automatic bagging equipment for concrete admixtures according to claim 5, characterized in that, The support shaft (36) is fixedly connected to a fixed cylinder (38) at one end away from the rotating shaft (32). The fixed cylinder (38) has two inclined slide grooves (39) and two straight slide grooves (40). The two inclined slide grooves (39) are respectively connected to the two straight slide grooves (40) to form a walking track. A sliding frame (45) is slidably connected to the fixed cylinder (38). A slider (46) is fixedly connected to the side of the sliding frame (45) near the fixed cylinder (38). The slider (46) is slidably connected in the track formed by the inclined slide grooves (39) and the straight slide grooves (40).

7. The automatic bagging equipment for concrete admixtures according to claim 6, characterized in that, Two slide rods (41) are fixedly connected to the side of the support frame (35) away from the driven bevel gear (37). Slide plates (44) are slidably connected to both slide rods (41). The two slide plates (44) are located on both sides of the sliding frame (45). The two sides of the sliding frame (45) are fixedly connected to the two slide plates (44). Limiting plates (42) are fixedly connected to the other end of both slide rods (41). Springs (43) are sleeved on both slide rods (41). The two springs (43) are located between the two limiting plates (42) and the slide plates (44).

8. The automatic bagging equipment for concrete admixtures according to claim 7, characterized in that, A striking head (47) is fixedly connected to one side of the sliding frame (45), and a vibrating plate (48) is fixedly connected to the side of the hopper (2) near the striking head (47). The striking head (47) and the vibrating plate (48) cooperate with each other.

9. The automatic bagging equipment for concrete admixtures according to claim 1, characterized in that, A fixed frame (7) is fixedly connected to the discharge cylinder (5). Rotating frames (8) are rotatably connected to both sides of the fixed frame (7). Mounting plates (9) are fixedly connected to the bottom of the two rotating frames (8). Sealing rings (10) are fixedly connected to the two mounting plates (9). The two sealing rings (10) are in contact with the surface of the discharge cylinder (5). A hydraulic telescopic rod (11) is rotatably connected between the two rotating frames (8).

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