PE bag powder dust-free filling mechanism

Abstract

The utility model relates to PE bag powder filling technical field, and disclose a kind of PE bag powder dustless filling mechanism, including filling mechanism fixed base and lower support plate, the filling mechanism fixed base is fixedly installed in the both sides of lower support plate top end, the both sides fixed mounting of lower support plate lower part have connecting plate, the lower end fixed mounting of connecting plate have cylinder fixed base.This PE bag powder dustless filling mechanism, balanced clamping of PE bag can be realized by the clamping jaw cylinder of bilateral symmetrical distribution and PE bag clamping jaw, PE bag opening bag subassembly is driven by bilateral negative pressure adsorption structure cooperation guide rod cylinder, can stable open bag mouth, cavity dust suction port can adsorb the dust scattered in the inside and outside of discharging cover, bag dust upper dust suction port and bag dust lower dust suction port are cooperated by intercommunication hose and adsorb PE bag dust, can effectively solve the problem of dust pollution, can realize dustless filling, simultaneously, discharging control component is realized by pen-shaped cylinder linkage open-close door synchronous opening and closing, overall optimization operation environment.

Description

Technical Field

[0001] This utility model relates to the field of PE bag powder filling technology, specifically a dust-free powder filling mechanism for PE bags. Background Technology

[0002] PE bag powder filling is the mainstream process in the field of powder material packaging. With the characteristics of corrosion resistance, good sealing performance and controllable cost of PE bags, combined with precision filling technology, it can achieve efficient packaging of various powder materials such as food powder, chemical additives, pharmaceutical raw materials and building material powders. The core is to fill the PE bag with powder or fine particulate material according to the preset weight or volume through professional equipment, and then seal and shape it to complete the packaging. The whole process first pre-treats the powder by drying, preventing agglomeration and removing impurities to ensure filling accuracy. Then, the parameters are adjusted according to the flowability of the powder to achieve uniform injection through spiral, gravity or vacuum equipment. Finally, heat sealing or tying is used to ensure airtightness.

[0003] Most existing PE bag powder filling equipment can be divided into two categories: one is without a dust removal mechanism, and the other is with a dust removal mechanism installed outside the filling port. The former has no dust removal function, while the latter, although it has a dust removal function, has a large overall size and poor dust removal effect, often resulting in dust escaping. Because dust-free filling operations cannot be achieved, workers are exposed to dust pollution for a long time, which greatly reduces their working experience and seriously threatens their respiratory system and overall health. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a dust-free powder filling mechanism for PE bags, which can effectively solve the problems in the prior art.

[0005] The technical solution adopted by this utility model is: a dust-free filling mechanism for PE bags containing powder, including a filling mechanism fixing seat and a lower support plate. The filling mechanism fixing seat is fixedly installed on both sides of the top of the lower support plate. Connecting plates are fixedly installed on both sides of the lower part of the lower support plate. A cylinder fixing seat is fixedly installed at the lower end of the connecting plate. A gripper cylinder is fixedly installed at the end of the cylinder fixing seat away from the connecting plate. A PE bag gripper is fixedly installed at the movable end of the gripper cylinder. A transition nozzle is fixedly installed in the middle of the lower support plate. The top of the lower support plate is located at the transition nozzle. Dust suction port mounting bases are fixedly installed on both sides of the nozzle. The top of the dust suction port mounting bases is fixedly installed with a cavity dust suction port and a bag dust suction port. A pneumatic vibrator is provided on the outside of the transition nozzle. A dust suction pipe mounting plate is fixedly installed on the side of the connecting plate facing the transition nozzle. PE bag opening components are provided on both sides of the top of the lower support plate. A material discharge hood is provided at the lower end of the lower support plate. A material discharge control component is provided between the material discharge hood and the lower support plate. The cavity dust suction port and the bag dust suction port are both connected to the inlet of the bag filter.

[0006] Preferably, there are two identical filling mechanism fixing seats, connecting plates, cylinder fixing seats, gripper cylinders and PE bag grippers, and the two filling mechanism fixing seats, connecting plates, cylinder fixing seats, gripper cylinders and PE bag grippers are symmetrically distributed about the vertical center line of the lower support plate.

[0007] Through the above technical solution, the two symmetrically distributed cylinder fixing seats, gripper cylinders and PE bag grippers can achieve symmetrical clamping of the PE bag on both sides, ensuring that the PE bag is subjected to balanced force during the filling process, avoiding the PE bag from shifting or tilting during the filling process, and improving the overall stability of the mechanism operation.

[0008] Preferably, the transition nozzle passes through the lower support plate and extends into the interior of the discharge hood, and the axis of the transition nozzle and the discharge hood are located on the same vertical line.

[0009] Through the above technical solution, during the filling process, the powder can be directly fed into the feeding control component through the transition nozzle and the feeding hood, ensuring that the powder enters the PE bag stably. During the filling process, the pneumatic vibrator can vibrate the transition nozzle to ensure that the powder enters the PE bag continuously and without interruption.

[0010] Preferably, the PE bag opening assembly includes a guide rod cylinder, a main connecting arm is fixedly installed on the movable end of the guide rod cylinder, an air suction arm is fixedly installed on the end of the main connecting arm away from the guide rod cylinder, an opening seat is fixedly installed on the end of the air suction arm away from the main connecting arm, an air suction chamber is provided inside the air suction arm, an air suction port communicating with the air suction chamber is provided on the outside of the air suction arm, and a magnetic switch is provided at the top of the guide rod cylinder.

[0011] Through the above technical solution, the guide rod cylinder can drive the main connecting arm to move the suction arm and the bag opening seat inward or outward simultaneously. At the same time, the suction chamber and the suction port cooperate to form a negative pressure adsorption structure, which can adsorb and open the side of the PE bag. The magnetic switch can provide real-time feedback on the extension and retraction position of the guide rod cylinder, so that the PE bag will not be over-opened.

[0012] Preferably, the bag opening seat, the first suction chamber, and the suction port are interconnected. The guide rod cylinder, the main connecting arm, the suction arm, the bag opening seat, the magnetic switch, the first suction chamber, and the suction port are all provided in two identical units. The two guide rod cylinders, the main connecting arm, the suction arm, the bag opening seat, the magnetic switch, the first suction chamber, and the suction port are symmetrically distributed about the vertical axis of the transition nozzle. The suction port is interconnected with an external suction pump.

[0013] Through the above technical solution, the symmetrically distributed bag opening components on both sides can be simultaneously adsorbed on both sides of the PE bag. After the air extraction port is connected to an external air pump, the negative pressure generated by the air extraction chamber makes the bag opening seat firmly adsorb the side wall of the PE bag. With the extension of the guide rod cylinder, the bag opening is stably opened, ensuring the stable filling of powder.

[0014] Preferably, the feeding control component includes a support base, which is fixedly installed on the top of the lower support plate. A rotating rod is rotatably installed on the outer side of the support base. A pen-shaped cylinder is fixedly installed at the end of the rotating rod away from the support base. A connecting rod is fixedly installed at the movable end of the pen-shaped cylinder. Deep groove ball bearings are fixedly installed on both sides inside the feeding hood. Rotating shaft one and rotating shaft two are rotatably installed on both sides inside the feeding hood through the deep groove ball bearings. A valve port connecting arm one is provided between rotating shaft one and the connecting rod. Valve port connecting arm one is fixedly connected to rotating shaft one and rotatably connected to the connecting rod. A valve port connecting arm three is fixedly installed on the outer side of the rotating shaft two. A valve port connecting arm two is rotatably installed between the valve port connecting arm three and the valve port connecting arm one. A connecting block one is fixedly installed on the side of the rotating shaft one facing the rotating shaft two. An opening and closing door one is fixedly installed on the side of the connecting block one away from the rotating shaft one. A connecting block two is fixedly installed on the side of the rotating shaft two facing the rotating shaft one. An opening and closing door two is fixedly installed on the side of the connecting block two away from the rotating shaft two. An air extraction chamber two is provided inside both the opening and closing door one and the opening and closing door two. A dust suction port for the bag inside is provided at the top of both the opening and closing door one and the opening and closing door two, which communicates with the air extraction chamber two.

[0015] Through the above technical solution, the telescopic movement of the pen-shaped cylinder can transmit power to the rotating shafts one and two via the connecting rod, valve port connecting arm one, valve port connecting arm two and valve port connecting arm three. At this time, the rotating shafts one and two rotate synchronously in the forward or reverse direction around the deep groove ball bearing, thereby realizing the synchronous opening and closing of the opening and closing gate one and the opening and closing gate two, which can control the opening and closing of powder filling.

[0016] Preferably, a flexible hose is provided between the lower dust suction port and the upper dust suction port inside the bag, the dust suction port of the cavity is connected to the discharge hood, the second rotating shaft and the second connecting block have the same structure as the first rotating shaft and the first connecting block, the lower end of the transition nozzle extends between the first opening door and the second opening door, and two identical sets of deep groove ball bearings are provided, with two identical sets of deep groove ball bearings in each set. One set of deep groove ball bearings is symmetrically distributed on both sides of the first rotating shaft, and the other set of deep groove ball bearings is symmetrically distributed on both sides of the second rotating shaft.

[0017] Through the above technical solution, the hose between the lower dust suction port and the upper dust suction port inside the bag can adsorb dust scattered inside and outside the PE bag. At the same time, the dust suction port in the cavity can also adsorb dust scattered inside and outside the material discharge hood, which can effectively solve the problem of dust pollution, achieve dust-free filling, and thus optimize the working environment of the staff.

[0018] Compared with the prior art, this utility model provides a dust-free powder filling mechanism for PE bags, which has the following beneficial effects: 1. This PE bag powder dust-free filling mechanism can achieve balanced clamping of PE bags through the symmetrically distributed gripper cylinders on both sides and the PE bag grippers, effectively preventing the PE bags from shifting or tilting during the filling process. The PE bag opening component can stably open the bag mouth through the double-sided negative pressure adsorption structure and the guide rod cylinder drive. The magnetic switch can prevent the PE bag from being over-opened. The pneumatic vibrator outside the transition nozzle can ensure the continuous falling of powder, ensuring a smooth and controllable filling process. 2. This PE bag powder dust-free filling mechanism features a dust suction port in the cavity that can absorb dust scattered inside and outside the material feeding hood. The dust suction ports inside the bag (both upper and lower) work together via interconnected flexible hoses to absorb dust from inside the PE bag. Both the cavity dust suction port and the upper dust suction port inside the bag are connected to a bag filter, effectively solving the problem of dust pollution and achieving dust-free filling. Simultaneously, the material feeding control component uses a pen-shaped cylinder to synchronize the opening and closing of the door, precisely controlling the start and stop of filling. Overall, this optimizes the working environment and improves the convenience and reliability of operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the half-section structure of this utility model; Figure 4 This is a schematic diagram of the installation structure of the material feeding control component of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the installation structure of the material feeding control component of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the installation structure of the material feeding control component of this utility model. Figure 3 ; Figure 7 This is a three-dimensional structural diagram of the material feeding control component of this utility model; Figure 8 This is a half-sectional structural diagram of the material feeding control component of this utility model; Figure 9 This is a half-sectional structural diagram of the PE bag opening component of this utility model.

[0020] The components include: 1. Filling mechanism fixing seat; 2. Lower support plate; 3. Connecting plate; 4. Dust suction pipe fixing plate; 5. Cylinder fixing seat; 6. Gripper cylinder; 7. PE bag gripper; 8. Transition nozzle; 9. Pneumatic vibrator; 10. Dust suction port fixing seat; 11. Dust suction port for the cavity; 12. Dust suction port for the inside of the bag; 13. PE bag opening assembly; 1301. Guide rod cylinder; 1302. Main connecting arm; 1303. Suction arm; 1304. Bag opening seat; 1305. Magnetic switch; 1306. Suction chamber one; 1307. Suction port. 14. Feeding hood; 15. Feeding control assembly; 1501. Support base; 1502. Rotating rod; 1503. Pen-shaped cylinder; 1504. Connecting rod; 1505. Valve port connecting arm one; 1506. Rotating shaft one; 1507. Connecting block one; 1508. Opening and closing door one; 1509. Valve port connecting arm two; 1510. Valve port connecting arm three; 1511. Rotating shaft two; 1512. Connecting block two; 1513. Opening and closing door two; 1514. Deep groove ball bearing; 1515. Dust suction port inside the bag; 1516. Suction chamber two. Detailed Implementation

[0021] The technical solutions of the present utility model 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 utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1: As Figure 1-9As shown, this utility model provides a dust-free filling mechanism for PE bags containing powder, including a filling mechanism fixing seat 1 and a lower support plate 2. The filling mechanism fixing seat 1 is fixedly installed on both sides of the top of the lower support plate 2. Connecting plates 3 are fixedly installed on both sides of the lower part of the lower support plate 2. A cylinder fixing seat 5 is fixedly installed at the lower end of the connecting plate 3. A gripper cylinder 6 is fixedly installed at the end of the cylinder fixing seat 5 away from the connecting plate 3. A PE bag gripper 7 is fixedly installed at the movable end of the gripper cylinder 6. A transition nozzle 8 is fixedly installed in the middle of the lower support plate 2. The top of the lower support plate 2 is fixedly installed on both sides of the transition nozzle 8. The device includes a dust suction port mounting base 10, with a cavity dust suction port 11 and a bag dust suction port 12 fixedly installed at the top of the dust suction port mounting base 10. A pneumatic vibrator 9 is provided on the outside of the transition nozzle 8. A dust suction pipe mounting plate 4 is fixedly installed on the side of a connecting plate 3 facing the transition nozzle 8. PE bag opening components 13 are provided on both sides of the top of the lower support plate 2. A discharge hood 14 is provided at the lower end of the lower support plate 2. A discharge control component 15 is provided between the discharge hood 14 and the lower support plate 2. The cavity dust suction port 11 and the bag dust suction port 12 are both connected to the inlet of the bag filter.

[0023] Specifically, the filling mechanism fixing seat 1, connecting plate 3, cylinder fixing seat 5, gripper cylinder 6, and PE bag gripper 7 are all provided in duplicate, and both sets of the filling mechanism fixing seat 1, connecting plate 3, cylinder fixing seat 5, gripper cylinder 6, and PE bag gripper 7 are symmetrically distributed about the vertical center line of the lower support plate 2. The advantage is that the two symmetrically distributed cylinder fixing seats 5, gripper cylinder 6, and PE bag gripper 7 can achieve symmetrical clamping of the PE bag on both sides, ensuring balanced force on the PE bag during filling, preventing the PE bag from shifting or tilting during filling, and improving the overall stability of the mechanism.

[0024] Specifically, the transition nozzle 8 passes through the lower support plate 2 and extends into the interior of the discharge hood 14, with the axes of the transition nozzle 8 and the discharge hood 14 aligned vertically. The advantage is that during filling, the powder can directly enter the discharge control assembly 15 through the transition nozzle 8 and the discharge hood 14, ensuring a stable flow of powder into the PE bag. During filling, the pneumatic vibrator 9 can vibrate the transition nozzle 8 to ensure a continuous and uninterrupted flow of powder into the PE bag.

[0025] Example 2: like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0026] Specifically, the PE bag opening assembly 13 includes a guide rod cylinder 1301, a main connecting arm 1302 is fixedly installed at the movable end of the guide rod cylinder 1301, a suction arm 1303 is fixedly installed at the end of the main connecting arm 1302 away from the guide rod cylinder 1301, a bag opening seat 1304 is fixedly installed at the end of the suction arm 1303 away from the main connecting arm 1302, a suction chamber 1306 is provided inside the suction arm 1303, a suction port 1307 communicating with the suction chamber 1306 is provided on the outside of the suction arm 1303, and a magnetic switch 1305 is provided at the top of the guide rod cylinder 1301. The advantages are that the guide rod cylinder 1301 can drive the main connecting arm 1302 to move the suction arm 1303 and the bag opening seat 1304 inward or outward at the same time. At the same time, the suction chamber 1306 and the suction port 1307 cooperate to form a negative pressure adsorption structure, which can adsorb and open the side of the PE bag. The magnetic switch 1305 can provide real-time feedback on the extension and retraction position of the guide rod cylinder 1301, so that the PE bag will not be over-opened.

[0027] Specifically, the bag opening seat 1304, the first suction chamber 1306, and the suction port 1307 are interconnected. The guide rod cylinder 1301, the main connecting arm 1302, the suction arm 1303, the bag opening seat 1304, the magnetic switch 1305, the first suction chamber 1306, and the suction port 1307 are all provided with two identical ones. The two guide rod cylinders 1301, the main connecting arm 1302, the suction arm 1303, the bag opening seat 1304, the magnetic switch 1305, the first suction chamber 1306, and the suction port 1307 are symmetrically distributed about the vertical axis of the transition nozzle 8. The suction port 1307 is interconnected with the external suction pump. The advantage is that the symmetrically distributed bag opening components can be simultaneously adsorbed on both sides of the PE bag. After the air extraction port 1307 is connected to the external air pump, the negative pressure generated by the air extraction chamber 1306 makes the bag opening seat 1304 firmly adsorb the side wall of the PE bag. With the extension of the guide rod cylinder 1301, the bag mouth is stably opened, ensuring the stable filling of powder.

[0028] Example 3: like Figure 2-9 As shown, this is an improvement on the previous embodiment.

[0029] Specifically, the feeding control component 15 includes a support base 1501, which is fixedly installed on the top of the lower support plate 2. A rotating rod 1502 is rotatably installed on the outer side of the support base 1501. A pen-shaped cylinder 1503 is fixedly installed at the end of the rotating rod 1502 away from the support base 1501. A connecting rod 1504 is fixedly installed at the movable end of the pen-shaped cylinder 1503. Deep groove ball bearings 1514 are fixedly installed on both sides inside the feeding cover 14. Rotating shaft 1506 and rotating shaft 1511 are rotatably installed on both sides inside the feeding cover 14 through the deep groove ball bearings 1514. A valve port connecting arm 1505 is provided between the rotating shaft 1506 and the connecting rod 1504. The valve port connecting arm 1505 is fixedly connected to the rotating shaft 1506 and rotatably connected to the connecting rod 1504. A valve port connecting arm three 1510 is fixedly installed on the outside of 11. A valve port connecting arm two 1509 is rotatably installed between valve port connecting arm three 1510 and valve port connecting arm one 1505. A connecting block one 1507 is fixedly installed on the side of the rotating shaft one 1506 facing the rotating shaft two 1511. An opening and closing door one 1508 is fixedly installed on the side of the connecting block one 1507 away from the rotating shaft one 1506. A connecting block two 1512 is fixedly installed on the side of the rotating shaft two 1511 facing the rotating shaft one 1506. An opening and closing door two 1513 is fixedly installed on the side of the connecting block two 1512 away from the rotating shaft two 1511. An air extraction chamber two 1516 is provided inside both the opening and closing door one 1508 and the opening and closing door two 1513. A dust suction port 1515 for dust inside the bag is provided at the top of both the opening and closing door one 1508 and the opening and closing door two 1513, which communicates with the air extraction chamber two 1516. The advantage is that the telescopic movement of the pen-shaped cylinder 1503 can transmit power to the rotating shaft 1506 and the rotating shaft 2 1511 through the connecting rod 1504, valve port connecting arm 1505, valve port connecting arm 2 1509 and valve port connecting arm 3 1510. At this time, the rotating shaft 1506 and the rotating shaft 2 1511 rotate synchronously in the forward or reverse direction around the deep groove ball bearing 1514, thereby realizing the synchronous opening and closing of the opening and closing door 1508 and the opening and closing door 2 1513, which can control the opening and closing of powder filling.

[0030] Specifically, a flexible hose is provided between the lower dust suction port 1515 and the upper dust suction port 12 inside the bag. The dust suction port 11 in the cavity is connected to the discharge hood 14. The structure of the second rotating shaft 1511 and the second connecting block 1512 is the same as that of the first rotating shaft 1506 and the first connecting block 1507. The lower end of the transition nozzle 8 extends between the first opening door 1508 and the second opening door 1513. Two identical sets of deep groove ball bearings 1514 are provided. Each set of deep groove ball bearings 1514 has two identical sets. One set of deep groove ball bearings 1514 is symmetrically distributed on both sides of the first rotating shaft 1506, and the other set of deep groove ball bearings 1514 is symmetrically distributed on both sides of the second rotating shaft 1511. The advantages are that the hose between the lower dust suction port 1515 and the upper dust suction port 12 inside the bag can adsorb dust scattered inside and outside the PE bag, while the dust suction port 11 in the cavity can also adsorb dust scattered inside and outside the discharge hood 14, which can effectively solve the problem of dust pollution, achieve dust-free filling, and thus optimize the working environment of the staff.

[0031] Working Principle: In operation, the bag transfer mechanism first transports the PE bag to the clamping station. The gripper cylinders 6 on both sides move synchronously, driving the PE bag grippers 7 to symmetrically clamp the PE bag. Then, the PE bag opening assembly 13 starts, and the guide rod cylinder 1301 drives the main connecting arm 1302, which in turn drives the suction arm 1303 and the bag opening seat 1304 to move synchronously. The suction port 1307, in conjunction with the suction chamber 1306, forms a negative pressure that adsorbs the two side walls of the PE bag, achieving stable bag opening. The magnetic switch 1305 provides real-time feedback on the extension and retraction position of the guide rod cylinder 1301 to prevent the PE bag from being over-opened. Next, the pen-shaped cylinder 1503 in the feeding control assembly 15 extends and retracts, pushing the valve port connecting arm 1505 via the connecting rod 1504, which in turn links the valve port connecting arm 1510 via the valve port connecting arm 2 1509, synchronously driving... Rotating shaft 1506 and rotating shaft 2 1511 rotate around deep groove ball bearing 1514, causing opening and closing door 1508 and opening and closing door 2 1513 to open. Powder is conveyed into the PE bag through transition nozzle 8. Pneumatic vibrator 9 continuously vibrates transition nozzle 8 to ensure continuous and uninterrupted powder falling. During this process, dust suction port 11 in the cavity adsorbs dust scattered inside and outside the discharge hood 14. Dust suction port 12 and dust suction port 1515 inside the bag work together to adsorb dust inside the PE bag through interconnected hoses. All suction ports transport the collected dust to the bag filter for treatment. When filling is completed, pen-shaped cylinder 1503 resets and drives opening and closing door 1508 and opening and closing door 2 1513 to close. Claw cylinder 6 drives PE bag claw 7 to release. At this time, a single powder filling operation is completed.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust-free powder filling mechanism for PE bags, comprising a filling mechanism fixing seat (1) and a lower support plate (2), characterized in that: The filling mechanism fixing seat (1) is fixedly installed on both sides of the top of the lower support plate (2). The lower support plate (2) has connecting plates (3) fixedly installed on both sides of the lower part. The lower end of the connecting plate (3) has a cylinder fixing seat (5) fixedly installed. The end of the cylinder fixing seat (5) away from the connecting plate (3) has a gripper cylinder (6) fixedly installed. The movable end of the gripper cylinder (6) has a PE bag gripper (7) fixedly installed. The middle of the lower support plate (2) has a transition nozzle (8) fixedly installed. The top of the lower support plate (2) has dust suction ports fixedly installed on both sides of the transition nozzle (8). The fixed base (10) has a cavity dust suction port (11) and a bag dust suction port (12) fixedly installed at the top of the dust suction port fixed base (10). A pneumatic vibrator (9) is provided on the outside of the transition nozzle (8). A dust suction pipe fixed plate (4) is fixedly installed on the side of the connecting plate (3) facing the transition nozzle (8). PE bag opening components (13) are provided on both sides of the top of the lower support plate (2). A material discharge cover (14) is provided at the lower end of the lower support plate (2). A material discharge control component (15) is provided between the material discharge cover (14) and the lower support plate (2).

2. The PE bag powder dust-free filling mechanism according to claim 1, characterized in that: The filling mechanism fixing seat (1), connecting plate (3), cylinder fixing seat (5), gripper cylinder (6) and PE bag gripper (7) are all provided in two identical units. The two filling mechanism fixing seats (1), connecting plate (3), cylinder fixing seat (5), gripper cylinder (6) and PE bag gripper (7) are symmetrically distributed about the vertical center line of the lower support plate (2).

3. The PE bag powder dust-free filling mechanism according to claim 1, characterized in that: The transition nozzle (8) passes through the lower support plate (2) and extends into the interior of the discharge cover (14). The axis of the transition nozzle (8) and the discharge cover (14) are on the same vertical line.

4. The PE bag powder dust-free filling mechanism according to claim 1, characterized in that: The PE bag opening assembly (13) includes a guide rod cylinder (1301), a main connecting arm (1302) is fixedly installed on the movable end of the guide rod cylinder (1301), a suction arm (1303) is fixedly installed on the end of the main connecting arm (1302) away from the guide rod cylinder (1301), a bag opening seat (1304) is fixedly installed on the end of the suction arm (1303) away from the main connecting arm (1302), a suction chamber (1306) is provided inside the suction arm (1303), a suction port (1307) communicating with the suction chamber (1306) is provided on the outside of the suction arm (1303), and a magnetic switch (1305) is provided at the top of the guide rod cylinder (1301).

5. The PE bag powder dust-free filling mechanism according to claim 4, characterized in that: The bag opening seat (1304), the first suction chamber (1306), and the suction port (1307) are interconnected. The guide rod cylinder (1301), the main connecting arm (1302), the suction arm (1303), the bag opening seat (1304), the magnetic switch (1305), the first suction chamber (1306), and the suction port (1307) are all provided with two identical ones. The two guide rod cylinders (1301), the main connecting arm (1302), the suction arm (1303), the bag opening seat (1304), the magnetic switch (1305), the first suction chamber (1306), and the suction port (1307) are symmetrically distributed about the vertical axis of the transition nozzle (8).

6. The PE bag powder dust-free filling mechanism according to claim 1, characterized in that: The feeding control assembly (15) includes a support base (1501), which is fixedly installed on the top of the lower support plate (2). A rotating rod (1502) is rotatably installed on the outer side of the support base (1501). A pen-shaped cylinder (1503) is fixedly installed at the end of the rotating rod (1502) away from the support base (1501). A connecting rod (1504) is fixedly installed at the movable end of the pen-shaped cylinder (1503). Both sides inside the feeding cover (14) are fixedly installed with... Equipped with deep groove ball bearings (1514), the inside of the feed hood (14) has two rotating shafts (1506 and 1511) rotatably mounted on both sides via the deep groove ball bearings (1514). A valve port connecting arm (1505) is provided between the rotating shaft (1506) and the connecting rod (1504). The valve port connecting arm (1505) is fixedly connected to the rotating shaft (1506), and the valve port connecting arm (1505) is rotatably connected to the connecting rod (1504). The rotating shaft... A valve port connecting arm three (1510) is fixedly installed on the outside of (1511). A valve port connecting arm two (1509) is rotatably installed between the valve port connecting arm three (1510) and the valve port connecting arm one (1505). A connecting block one (1507) is fixedly installed on the side of the rotating shaft one (1506) facing the rotating shaft two (1511). An opening and closing door one (1508) is fixedly installed on the side of the connecting block one (1507) away from the rotating shaft one (1506). The rotating shaft two (1511) faces... A connecting block 2 (1512) is fixedly installed on one side of the rotating shaft 1 (1506). A second opening and closing door 2 (1513) is fixedly installed on the side of the connecting block 2 (1512) away from the rotating shaft 2 (1511). Both the first opening and closing door 1 (1508) and the second opening and closing door 2 (1513) are provided with a second air extraction chamber 2 (1516). The top of both the first opening and closing door 1 (1508) and the second opening and closing door 2 (1513) are provided with a dust suction port (1515) for dust inside the bag that communicates with the second air extraction chamber 2 (1516).

7. The PE bag powder dust-free filling mechanism according to claim 6, characterized in that: A flexible hose is provided between the lower dust suction port (1515) and the upper dust suction port (12) inside the bag. The dust suction port (11) of the cavity is connected to the material hood (14). The structure of the second rotating shaft (1511) and the second connecting block (1512) is the same as that of the first rotating shaft (1506) and the first connecting block (1507). The lower end of the transition nozzle (8) extends between the first opening door (1508) and the second opening door (1513). Two identical sets of deep groove ball bearings (1514) are provided. Each set of deep groove ball bearings (1514) has two identical sets. One set of deep groove ball bearings (1514) is symmetrically distributed on both sides of the first rotating shaft (1506), and the other set of deep groove ball bearings (1514) is symmetrically distributed on both sides of the second rotating shaft (1511).

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