Automatic packaging apparatus for powders

Abstract

The utility model relates to the technical field of powder packaging, particularly to an automatic powder packaging equipment, which can reduce the air pressure at the bag opening of the packaging bag, reduce dust flying and is more environmentally friendly, comprising a rack, a bag clamping and feeding mechanism and a lifting and guiding mechanism installed on the rack, the bag clamping and feeding mechanism comprises a feeding hopper, a storage hopper communicated with the discharge end of the feeding hopper, a clamping mechanism installed at the discharge port of the storage hopper and a plug plate slidingly installed at the discharge port of the storage hopper, a driving assembly is installed on the storage hopper to provide power for the sliding of the plug plate, the clamping mechanism comprises two clamping arms hingedly installed on the storage hopper, a semicircular clamping frame installed on the clamping arms and a second telescopic cylinder providing power for the movement of the two clamping arms, and the lifting and guiding mechanism comprises four groups of vertical guide rails fixedly installed on the rack, a frame body slidingly installed on the four groups of vertical guide rails and a third telescopic cylinder providing power for the upward and downward sliding of the frame body.

Description

Technical Field

[0001] This utility model relates to the technical field of powder packaging, and in particular to an automatic powder packaging device. Background Technology

[0002] Powder packaging machines are specialized equipment used for the automated packaging of powdered products. They are also known as powder packaging machines and are widely used in the food, chemical, pharmaceutical, and pesticide industries, covering the packaging of materials such as milk powder, condiments, veterinary drugs, and feed.

[0003] For example, utility model patent application CN203921221U discloses a universal sealed powder bagging device, including a material cylinder assembly, a flip-door mechanism, a pressure plate, and a gripper. When the two flip-doors are opened, the side sealing plate, sealing block, flip-doors, and sealing strip form a cavity at the lower end of the material cylinder that is sealed on all sides but open at the top and bottom. It can be used for bagging powder in both straight and M-shaped open bags, while providing a better sealing effect.

[0004] However, the following defects were found: During the bagging of powder, the internal volume of the bag gradually decreases as the powder is continuously added, and the air pressure at the top of the bag gradually increases. When the powder is completely filled and the bag is separated from the bagging device, a large amount of dust will escape, causing dust to scatter everywhere on site, which does not meet environmental protection requirements. If the surrounding staff inhale the dust, it will also affect their health. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an automatic packaging equipment for powder materials that reduces air pressure at the bag opening, minimizes dust emissions, and is more environmentally friendly.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic packaging device for powder materials, comprising a frame, a bag-feeding mechanism and a lifting and guiding mechanism mounted on the frame, wherein the bag-feeding mechanism includes a feeding hopper, a storage hopper connected to the discharge end of the feeding hopper, a clamping mechanism mounted at the discharge port of the storage hopper, and an insert plate slidably mounted at the discharge port of the storage hopper; a driving assembly for providing power for the sliding of the insert plate is mounted on the storage hopper; the driving assembly includes a lifting frame fixedly connected to the storage hopper and a first telescopic cylinder fixedly mounted on the lifting frame; the clamping mechanism includes two clamping arms hinged to the storage hopper; The lifting and guiding mechanism includes a semi-circular support frame mounted on the lifting arms and a second telescopic cylinder that provides power for the movement of the two lifting arms. The lifting and guiding mechanism includes four sets of vertical guide rails fixedly mounted on the frame, a frame body slidably mounted on the four sets of vertical guide rails, and a third telescopic cylinder that provides power for the up-and-down sliding of the frame body. Further, the output end of the first telescopic cylinder is fixedly connected to the insert plate; the two ends of the second telescopic cylinder are respectively hinged to the two lifting arms; the first, second, and third telescopic cylinders can be hydraulic cylinders or pneumatic cylinders, and the first, second, and third telescopic cylinders are provided with telescopic kinetic energy through an external pneumatic or hydraulic system.

[0007] Preferably, it further includes a vibration starting assembly installed at the bottom of the frame. The vibration starting assembly includes a base plate, a plurality of connecting springs installed at the bottom of the base plate, and a vibration starting driver installed at the bottom of the base plate. The base plate is elastically connected to the frame through the connecting springs. One end of the third telescopic cylinder is hinged to the frame, and the other end of the third telescopic cylinder is hinged to the top of the base plate. The vibration starting driver includes a motor fixedly installed on the frame, a drive wheel fixedly installed at the output end of the motor, and a transmission link. One end of the transmission link is rotatably connected to the eccentric part of the drive wheel, and the other end of the transmission link is hinged to the bottom of the base plate.

[0008] Preferably, the frame includes a U-shaped frame, a bracket hinged to the U-shaped frame, a first limiting cylinder, and a second limiting cylinder. The first limiting cylinder is fixedly installed on the U-shaped frame, and the bracket has a first limiting hole that matches the output end of the first limiting cylinder. The second limiting cylinder is fixedly installed on a vertical guide rail, and the U-shaped frame has a second limiting hole that matches the output end of the second limiting cylinder. Furthermore, a roller is rotatably installed on the U-shaped frame, and the roller is slidably installed in the vertical guide rail.

[0009] Preferably, it further includes a belt conveyor and a roller press installed on the vertical guide rail near the side of the belt conveyor. The roller press includes an elastic adjustment element, a mounting base installed on the elastic adjustment element, and a pressure roller rotatably installed on the mounting base. The elastic adjustment element includes a plate seat fixedly installed on the vertical guide rail, a slide rod slidably installed on the plate seat, and two springs sleeved on the slide rod. The end of the slide rod is fixedly connected to the mounting base. The two springs are located on both sides of the plate seat, with one end of each spring abutting against the plate seat and the other end of each spring abutting against the two ends of the slide rod. Further, both ends of the slide rod are provided with retaining plates, and the springs abut against the retaining plates.

[0010] Preferably, multiple sets of idler rollers are rotatably mounted on the bracket.

[0011] Preferably, the bracket is equipped with stop bars on both sides.

[0012] Preferably, the device also includes a weighing sensor, which is fixedly mounted on the frame, and the storage hopper is fixedly mounted on the weighing sensor. A flexible connector is installed between the feeding hopper and the storage hopper. Further, the flexible connector is preferably a cloth bag lined with a rubber sealing layer; other equivalent components with flexible connection effects, such as corrugated pipes, can also be used.

[0013] Preferably, the feeding hopper is provided with an inner cavity and a feeding port communicating with the inner cavity. An inclined guide plate is provided in the inner cavity near the feeding hopper, and a dust baffle is hinged below the guide plate.

[0014] Compared with the prior art, this utility model provides an automatic packaging equipment for powder, which has the following beneficial effects: the clamping mechanism pre-clamps the opening of the packaging bag, the lifting and guiding mechanism pre-expels the air inside the packaging bag, and the powder gradually enters the packaging bag during the descent of the lifting and guiding mechanism, effectively reducing the drop difference of the powder. This reduces the air pressure at the opening of the packaging bag, reduces dust escape, and is more environmentally friendly. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0016] Figure 2 This is a schematic diagram of the right-side planar structure of this utility model.

[0017] Figure 3 This is the utility model Figure 2 Schematic diagram of the cross-sectional structure at point AA.

[0018] Figure 4 This is the utility model Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0019] Figure 5 This is the utility model Figure 3 A magnified schematic diagram of the structure at point C.

[0020] Figure 6 This is the utility model Figure 3 A magnified schematic diagram of the structure at point D.

[0021] The attached diagram shows the following components: 1. Frame; 2. Feed hopper; 3. Storage hopper; 4. Insert plate; 5. Cantilever frame; 6. First telescopic cylinder; 7. Arm clamp; 8. Semi-circular arm clamp; 9. Second telescopic cylinder; 10. Vertical guide rail; 11. Third telescopic cylinder; 12. Base plate; 13. Connecting spring; 14. Motor; 15. Drive wheel; 16. Transmission link; 17. U-shaped frame; 18. Bracket; 19. First limit cylinder; 20. Second limit cylinder; 21. First limit hole; 22. Second limit hole; 23. Mounting seat; 24. Pressure roller; 25. Plate seat; 26. Slide rod; 27. Spring; 28. Idler roller; 29. ​​Baffle frame; 30. Weighing sensor; 31. Flexible connector; 32. Feed port; 33. Guide plate; 34. Dust baffle; 35. Belt conveyor. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0025] Example 1

[0026] refer to Figures 1-6An automatic packaging device for powder includes a frame 1, a bag-feeding mechanism and a lifting and guiding mechanism mounted on the frame 1. The bag-feeding mechanism includes a feeding hopper 2, a storage hopper 3 connected to the discharge end of the feeding hopper 2, a clamping mechanism mounted at the discharge port of the storage hopper 3, and an insert plate 4 slidably mounted at the discharge port of the storage hopper 3. A drive assembly is mounted on the storage hopper 3 to provide power for the sliding of the insert plate 4. The drive assembly includes a lifting frame 5 fixedly connected to the storage hopper 3 and a first telescopic cylinder 6 fixedly mounted on the lifting frame 5. The clamping mechanism includes two clamping arms 7 hingedly mounted on the storage hopper 3 and a semi-circular clamping frame 8 mounted on the clamping arms 7. The lifting and guiding mechanism includes a second telescopic cylinder 9 that provides power for the movement of the two lifting arms 7. The lifting and guiding mechanism includes four sets of vertical guide rails 10 fixedly installed on the frame 1, a frame body slidably installed on the four sets of vertical guide rails 10, and a third telescopic cylinder 11 that provides power for the up and down sliding of the frame body. Furthermore, the output end of the first telescopic cylinder 6 is fixedly connected to the insert plate 4. The two ends of the second telescopic cylinder 9 are respectively hinged to the two lifting arms 7. The first telescopic cylinder 6, the second telescopic cylinder 9, and the third telescopic cylinder 11 can be hydraulic cylinders or pneumatic cylinders. The first telescopic cylinder 6, the second telescopic cylinder 9, and the third telescopic cylinder 11 are provided with telescopic kinetic energy through an external pneumatic system or hydraulic system.

[0027] For details, please refer to Figure 3 It also includes a weighing sensor 30, which is fixedly installed on the frame 1. The storage hopper 3 is fixedly installed on the weighing sensor 30. A flexible connector 31 is installed between the feeding hopper 2 and the storage hopper 3. Furthermore, the flexible connector 31 is preferably a cloth bag with a rubber sealing layer on the outside of the cloth bag. Other equivalent components with flexible connection effects, such as corrugated pipes, can also be used.

[0028] The feeding hopper 2 is provided with an inner cavity and a feeding port 32 communicating with the inner cavity. An inclined guide plate 33 is provided in the inner cavity near the feeding hopper 2, and a dust baffle 34 is hinged below the guide plate 33.

[0029] The automatic powder packaging equipment provided in this embodiment allows powder entering the feeding hopper 2 to fall onto the guide plate 33 and slide down under gravity. The powder then slides down the bottom wall of the inner cavity. The impact force of the sliding powder on the dust baffle 34 causes the dust baffle 34 to rotate around the hinge point, allowing the powder to enter the storage hopper 3. After the powder is fed, the dust baffle 34 naturally falls down under gravity and contacts the bottom wall of the inner cavity, thus sealing the feeding port 32 of the feeding hopper 2 to reduce dust escape from the feeding hopper 2 and ensure a clean working environment. After the powder enters the storage hopper 3... The powder in the storage hopper 3 can be initially weighed by the weighing sensor 30. When the insert plate 4 is opened, the powder gradually enters the packaging bag. The weighing sensor 30 continues to weigh the powder in the storage hopper 3. When the difference between the initial weighing and the real-time weighing by the weighing sensor 30 reaches the set amount of powder to be bagged, the first telescopic cylinder 6 drives the insert plate 4 to be inserted into the discharge port of the storage hopper 3 to realize the quantitative filling of powder in the packaging bag. The weighing sensor 30 and the first telescopic cylinder 6 can be connected by an external PLC system to realize the automated control of the quantitative filling of powder in the packaging bag.

[0030] Example 2

[0031] The automatic packaging equipment for powder provided in Example 1 has been further optimized. Specifically, refer to... Figure 5 It also includes a vibration starter assembly installed at the bottom of the frame 1. The vibration starter assembly includes a base plate 12, a plurality of connecting springs 13 installed at the bottom of the base plate 12, and a vibration starter driver installed at the bottom of the base plate 12. The base plate 12 is elastically connected to the frame 1 through the connecting springs 13. One end of the third telescopic cylinder 11 is hinged to the frame body, and the other end of the third telescopic cylinder 11 is hinged to the top of the base plate 12. The vibration starter driver includes a motor 14 fixedly installed on the frame 1, a drive wheel 15 fixedly installed at the output end of the motor 14, and a transmission link 16. One end of the transmission link 16 is rotatably connected to the eccentric part of the drive wheel 15, and the other end of the transmission link 16 is hinged to the bottom of the base plate 12.

[0032] During the downward movement of the frame, the motor 14 drives the drive wheel 15 to rotate. After being transmitted through the transmission link 16 and the third telescopic cylinder 11, the frame vibrates up and down along the vertical guide rail 10. Under the action of vibration, the powder in the packaging bag can be made more compact, avoiding the powder from occupying too much space in the packaging bag, and providing operating space for subsequent packaging bag sealing.

[0033] For details, please refer to Figures 1-3The frame includes a U-shaped frame 17, a bracket 18 hinged to the U-shaped frame 17, a first limiting cylinder 19, and a second limiting cylinder 20. The first limiting cylinder 19 is fixedly installed on the U-shaped frame 17. The bracket 18 is provided with a first limiting hole 21 that matches the output end of the first limiting cylinder 19. The second limiting cylinder 20 is fixedly installed on the vertical guide rail 10. The U-shaped frame 17 is provided with a second limiting hole 22 that matches the output end of the second limiting cylinder 20. Furthermore, a roller is rotatably installed on the U-shaped frame 17. The roller is slidably installed in the vertical guide rail 10. The first limiting cylinder 19 and the second limiting cylinder 20 can be hydraulic cylinders or pneumatic cylinders. The hydraulic cylinders or pneumatic cylinders are provided with extension and retraction kinetic energy through an external hydraulic system or pneumatic system.

[0034] For details, please refer to Figure 1 Multiple sets of idler rollers 28 are rotatably mounted on the bracket 18.

[0035] For details, please refer to Figure 2 The bracket 18 has a stop bar bracket 29 installed on both sides.

[0036] After the powder is bagged, it is sealed by an external sealing device and then transferred to the next processing device. When the sealed packaging bag needs to be unloaded from the frame, the output end of the second limit cylinder 20 extends and inserts into the second limit hole 22, connecting the U-shaped frame 17 and the vertical guide rail 10 into one unit, while the first limit cylinder 19 moves out from the first limit hole 21. At this time, the third telescopic cylinder 11 is activated, the output end of the third telescopic cylinder 11 extends, and the bracket 18 rotates around the hinge point. The bracket 18 gradually rotates from a horizontal state to an inclined state. Under the action of gravity, the sealed packaging bag can be unloaded by itself. The roller 28 can reduce the friction between the bracket 18 and the packaging bag, so that the packaging bag can slide more smoothly from the bracket 18. The baffle 29 can prevent the packaging bag from sliding off both sides of the U-shaped frame 17.

[0037] For details, please refer to Figure 6 It also includes a belt conveyor 35 and a roller press installed on the vertical guide rail 10 near the belt conveyor 35. The roller press includes an elastic adjustment element, a mounting base 23 installed on the elastic adjustment element, and a pressure roller 24 rotatably installed on the mounting base 23. The elastic adjustment element includes a plate seat 25 fixedly installed on the vertical guide rail 10, a slide rod 26 slidably installed on the plate seat 25, and two springs 27 sleeved on the slide rod 26. The end of the slide rod 26 is fixedly connected to the mounting base 23. The two springs 27 are located on both sides of the plate seat 25, one end of the two springs 27 abuts against the plate seat 25, and the other end of the two springs 27 abuts against the two ends of the slide rod 26. Furthermore, both ends of the slide rod 26 are provided with a retaining plate, and the springs 27 abut against the retaining plate.

[0038] As the sealed packaging bag slides down from the bracket 18, the pressure roller 24 rolls the upper part of the packaging bag. Under the action of the two springs 27, an elastic rolling effect is formed on the powder inside the packaging bag, so that the powder inside the packaging bag is gradually flattened. The packaging bag gradually changes from a vertical state to an inclined state on the bracket 18 and passes through the bottom of the pressure roller 24. When the packaging bag falls to the belt conveyor 35, the packaging bag is placed horizontally. Automatic feeding and orientation adjustment of the packaging bag can be achieved without manual intervention, so that the packaging bag falling on the belt conveyor 35 is placed in a regular shape, improving the conveying stability of the packaging bag at the belt conveyor 35, and facilitating subsequent feeding and stacking of the packaging bag.

[0039] The automatic powder packaging equipment provided by this utility model operates as follows: In the initial state, the insert plate 4 completely blocks the discharge port at the bottom of the storage hopper 3. Powder is supplied to the storage hopper 3 through the feed hopper 2. When it is necessary to bag the powder, the bag opening is suspended from the two semi-circular brackets 8. The output end of the second telescopic cylinder 9 is shortened, and the two semi-circular brackets 8 move closer to each other. A certain gap is still left between the bag opening and the discharge port at the bottom of the storage hopper 3. The bottom of the bag is placed on the frame. The third telescopic cylinder 11 drives the frame to move upward until the frame is fully extended. The top of the body almost overlaps with the bottom of the storage hopper 3. At this time, the air in the packaging bag is almost completely expelled. The second telescopic cylinder 9 is activated again, and the semi-circular clamp 8 tightly secures the opening of the packaging bag to the discharge port of the storage hopper 3. The output end of the first telescopic cylinder 6 shortens, and the insert plate 4 is pulled out from the storage hopper 3. The powder in the storage hopper 3 falls into the packaging bag. At the same time, the third telescopic cylinder 11 drives the frame to move down. As the frame moves down, the powder is gradually filled into the packaging bag. Then, according to the above principle, the bagged packaging bag is unloaded and transported to the required position by the belt conveyor 35.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. An automatic packaging device for powder, characterized in that, The system includes a frame (1), a bag feeding mechanism and a lifting guide mechanism mounted on the frame (1). The bag feeding mechanism includes a feeding hopper (2), a storage hopper (3) connected to the discharge end of the feeding hopper (2), a clamping mechanism installed at the discharge port of the storage hopper (3), and an insert plate (4) slidably installed at the discharge port of the storage hopper (3). A drive assembly is installed on the storage hopper (3) to provide power for the sliding of the insert plate (4). The drive assembly includes a lifting frame (5) fixedly connected to the storage hopper (3) and a lifting guide mechanism. The first telescopic cylinder (6) is fixedly installed on the cantilever frame (5). The clamping mechanism includes two hinged arms (7) installed on the storage hopper (3), a semi-circular frame (8) installed on the arms (7), and a second telescopic cylinder (9) that provides power for the movement of the two arms (7). The lifting and guiding mechanism includes four sets of vertical guide rails (10) fixedly installed on the frame (1), a frame body slidably installed on the four sets of vertical guide rails (10), and a third telescopic cylinder (11) that provides power for the frame body to slide up and down.

2. The automatic packaging equipment for powders according to claim 1, characterized in that, It also includes a vibration starter assembly installed at the bottom of the frame (1). The vibration starter assembly includes a base plate (12), a plurality of connecting springs (13) installed at the bottom of the base plate (12), and a vibration starter driver installed at the bottom of the base plate (12). The base plate (12) is elastically connected to the frame (1) through the connecting springs (13). One end of the third telescopic cylinder (11) is hinged to the frame, and the other end of the third telescopic cylinder (11) is hinged to the top of the base plate (12). The vibration starter driver includes a motor (14) fixedly installed on the frame (1), a drive wheel (15) fixedly installed at the output end of the motor (14), and a transmission link (16). One end of the transmission link (16) is rotatably connected to the eccentric part of the drive wheel (15), and the other end of the transmission link (16) is hinged to the bottom of the base plate (12).

3. The automatic packaging equipment for powders according to claim 2, characterized in that, The frame includes a U-shaped frame (17), a bracket (18) hinged to the U-shaped frame (17), a first limiting cylinder (19) and a second limiting cylinder (20). The first limiting cylinder (19) is fixedly installed on the U-shaped frame (17). The bracket (18) is provided with a first limiting hole (21) that matches the output end of the first limiting cylinder (19). The second limiting cylinder (20) is fixedly installed on the vertical guide rail (10). The U-shaped frame (17) is provided with a second limiting hole (22) that matches the output end of the second limiting cylinder (20).

4. The automatic packaging equipment for powders according to claim 3, characterized in that, It also includes a belt conveyor (35) and a roller press installed on the vertical guide rail (10) near the side of the belt conveyor (35). The roller press includes an elastic adjustment element, a mounting seat (23) installed on the elastic adjustment element, and a pressure roller (24) rotatably installed on the mounting seat (23). The elastic adjustment element includes a plate seat (25) fixedly installed on the vertical guide rail (10), a slide rod (26) slidably installed on the plate seat (25), and two springs (27) sleeved on the slide rod (26). The end of the slide rod (26) is fixedly connected to the mounting seat (23). The two springs (27) are located on both sides of the plate seat (25). One end of the two springs (27) abuts against the plate seat (25), and the other end of the two springs (27) abuts against the two ends of the slide rod (26).

5. The automatic packaging equipment for powders according to claim 3, characterized in that, Multiple sets of idler rollers (28) are rotatably mounted on the bracket (18).

6. The automatic packaging equipment for powders according to claim 3, characterized in that, The bracket (18) is equipped with a stop bar bracket (29) on both sides.

7. The automatic packaging equipment for powders according to claim 1, characterized in that, It also includes a weighing sensor (30), which is fixedly installed on the frame (1), and the storage hopper (3) is fixedly installed on the weighing sensor (30). A flexible connector (31) is installed between the feeding hopper (2) and the storage hopper (3).

8. The automatic packaging equipment for powders according to claim 1, characterized in that, The feeding hopper (2) is provided with an inner cavity and a feeding port (32) communicating with the inner cavity. An inclined guide plate (33) is provided in the inner cavity near the feeding hopper (2). A dust baffle plate (34) is hinged below the guide plate (33).

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