Container powder lining bag

Abstract

The application relates to a container powder inner lining bag and relates to the technical field of cargo transportation. The container powder inner lining bag comprises a bag body arranged in a box body and a support frame. The support frame comprises connecting rods and a plurality of ring tubes. The ring tubes are coaxially arranged on the bag body. The plurality of ring tubes are arranged at intervals along the length direction of the bag body. The connecting rods are arranged along the length direction of the bag body. The connecting rods are fixed to the outer side walls of the plurality of ring tubes. A slide is fixed to the inner wall of the box body. The slide is arranged along the length direction of the bag body. The connecting rods are inserted into the slide and can move in the slide. The application has the effect that the bag body can be conveniently disassembled in the box body, so that the bag body can be inspected.

Description

Technical Field

[0001] This application relates to the field of cargo transportation, and in particular to a powder liner bag for a container. Background Technology

[0002] Container liners are used inside containers to hold free-flowing, bulk granular or powdery products. Made of food-grade materials, container liners keep goods dry and hygienic during transport.

[0003] When in use, inner liner bags typically have multiple hanging ropes installed on their side walls, which are then secured to the container by tying. However, before each loading and transport, the entire inner liner bag must be inspected to prevent breakage. This requires removing the inner liner bag from the container, which involves disassembling multiple hanging ropes sequentially. After inspection, the ropes must be re-tied into the container. This entire process is complex and requires improvement. Summary of the Invention

[0004] To address the issue of complex operations requiring the removal and installation of multiple hanging ropes for inspecting inner liners, this application provides a container powder inner liner.

[0005] The technical solution for a container powder inner liner bag provided in this application is as follows: A container powder liner bag includes a bag body and a support frame disposed within the container. The support frame includes a connecting rod and a plurality of ring tubes. The ring tubes are coaxially sleeved on the bag body, and the plurality of ring tubes are arranged at intervals along the length direction of the bag body. The connecting rod is arranged along the length direction of the bag body and is fixed to the outer wall of the plurality of ring tubes. A slide rail is fixed on the inner wall of the container body. The slide rail is arranged along the length direction of the bag body, and the connecting rod is inserted into the slide rail and is able to move within the slide rail.

[0006] By adopting the above technical solution, during use, the support frame is first removed from the box, exposing the bag to the outside of the box for easy inspection and repair. Then, granular or powdered goods are poured into the bag, and the entire support frame is pushed into the box. During this process, the connecting rod moves in the slide, which restricts and guides the connecting rod, allowing the support frame to be smoothly inserted into the box along with the bag. The cooperation between the connecting rod and the slide prevents the support frame from causing the bag to sway within the box, improving the stability of the bag inside. When the box is transported to the designated location, the support frame is removed again during unloading, facilitating inspection of the bag while unloading, and timely repair of any damage caused during transportation. This method is more convenient than the existing technology that requires disassembling the entire bag from the box, inspecting it, and then binding it sequentially.

[0007] Optionally, a suction cup is provided on the inner wall of the ring tube, the suction cup is connected to the ring tube, the suction cup can abut against the bag body, and an air suction component is provided on the ring tube. The air suction component moves to adsorb the suction cup onto the bag body.

[0008] By adopting the above technical solution, after the support frame inserts the bag into the box for storage, the movable suction component allows the suction cups to adhere to the outer wall of the bag, thus positioning the bag on the support frame and preventing it from moving freely within the frame. During transportation, the slide rails and connecting rods work together to limit the swaying of the entire support frame, while the support frame is connected to the bag via suction cups, thereby restricting the bag's movement within the box, reducing the likelihood of damage during transportation, and extending the bag's service life. Optionally, the suction assembly includes a suction tube and a suction rod. The suction tube is disposed on the annular tube, and the suction rod is inserted into the suction tube. A piston is provided inside the suction tube. The circumferential sidewall of the piston is in contact with the inner wall of the suction tube. The piston is fixed to one end of the suction rod. A push spring is sleeved on the suction rod. The push spring is located inside the suction tube and on the side of the piston away from the bag body. The push spring is used to move the piston toward the bag body.

[0009] By adopting the above technical solution, in the initial state, the suction rod, under the action of the push spring, drives the piston to move closer to the bag body, so that the bag body only adheres to the suction cup, sealing the opening of the suction cup. Then, after the support frame is inserted into the box, the suction rod is moved away from the bag body, squeezing the push spring, causing the piston to move away from the suction cup, thereby drawing gas from the suction cup, generating suction force inside the suction cup, and then adsorbing the bag body onto the suction cup. That is, the bag body and the suction cup are fixedly connected, realizing the fixed-point fixation of the bag body, so that the bag body cannot move as a whole within the support frame.

[0010] Optionally, a groove is provided on the inner wall of the box along the length of the bag. The suction rod can be inserted into the groove and move in the groove. The groove passes through the opening of the box. A guide surface is provided on the inner wall of the groove. The guide surface is located at the end of the box, and the end of the guide surface near the end of the box is inclined towards the center of the box. The suction rod can slide on the guide surface to drive the piston to move away from the bag.

[0011] By adopting the above technical solution, when the support frame, carrying the bag, is gradually inserted into the box, the suction rod is aligned with the corresponding slot and inserted. At the opening of the slot, the suction rod abuts against the guide surface and moves along the guide surface, allowing the suction rod to gradually move from the end of the guide surface into the slot. The guide surface is inclined to guide the movement of the suction rod, facilitating its insertion into the slot. At the same time, the position of the suction rod also gradually moves away from the bag under the action of the guide surface, thereby extracting gas from the suction cup and creating negative pressure in the suction cup. The suction cup is then used to adsorb the bag the moment it enters the box, thus completing the positioning of the bag on the support frame after it is inserted into the box. In other words, the installation and positioning of the bag are carried out simultaneously, making the operation convenient.

[0012] Optionally, the bag body is connected to an exhaust port, the exhaust port is connected to an exhaust pipe, the exhaust pipe is fixed to the outer side wall of the bag body, and a baffle is provided in the exhaust pipe, the circumferential side wall of the baffle is fitted with the inner wall of the exhaust pipe.

[0013] By adopting the above technical solution, during transportation, the air pressure inside the bag changes due to temperature variations. The gas inside the bag continuously enters and exits the exhaust pipe through the vent, causing the baffle to move along the length of the exhaust pipe. This allows the gas to enter and exit the bag as pressure changes, thus balancing the pressure inside and outside the bag and preventing the bag from expanding or contracting due to pressure differences, protecting the safety of the goods. The baffle design does not affect gas flow while preventing leakage of goods from the bag, improving the airtightness of the bag.

[0014] Optionally, one end of the bag body along its length is provided with a material outlet, and a ring tube near the material outlet is fixed to the bag body. The other end of the bag body is connected to a cylinder, which is mounted on a housing. The output end of the cylinder is fixed to the bag body. The cylinder is used to drive the end of the bag body away from the material outlet to move towards or away from the material outlet. A shrinkage assembly for closing the material outlet is provided on the ring tube located at the material outlet.

[0015] By adopting the above technical solution, the loading and unloading of goods in the bag are both achieved through the inlet and outlet. After the goods are loaded into the bag, the shrink assembly is activated to tighten the end of the bag, so that the inlet is closed, which facilitates the transportation of goods.

[0016] When the goods arrive at the designated point and need to be unloaded, the cylinder is activated to drive one end of the bag towards the inlet. During this process, the bag bends. After the cylinder drives one end of the bag through the inlet, it continues to move until the entire inner wall of the bag is completely turned outward, that is, the inside of the bag is completely exposed. This allows the goods inside the bag to be fully displayed. Especially for powdery goods, it is easy to completely unload the goods from the bag. This not only improves the completeness of unloading but also improves the cleanliness of the bag, so that it can be used to load different goods next time.

[0017] Optionally, the shrinking assembly includes two movable plates and two semi-circular discs. The two movable plates are arranged opposite to each other and are slidably connected to the ring tube. The two semi-circular discs correspond one-to-one with the movable plates and are disposed on the corresponding movable plates. The two semi-circular discs can be spliced ​​together to form a disc. The disc has a shrinking opening in the middle, and the end of the bag body with the material outlet can pass through the shrinking opening.

[0018] By adopting the above technical solution, in the initial state, the two moving plates are far apart from each other. After the goods are loaded into the bag, the two moving plates are driven to move closer to each other, so that the inner wall of the shrinkage opening squeezes the bag body, causing the end of the bag body to gradually shrink until the two semicircular discs abut against each other. At this time, the end of the bag body is constricted in the shrinkage opening, that is, the material outlet and the bag body are separated by the discs. The bag body is in a closed state at the position of the discs, so that the goods can be stored in the bag body and are not easy to leak out through the material outlet, thus facilitating the transportation of goods.

[0019] Optionally, the semi-disc is slidably connected to the movable plate, and the semi-disc can move on the movable plate about the center of the semi-disc as an axis. One of the movable plates is equipped with a motor, and the motor is coaxially fixed with a rotating gear. A transmission gear is fixed on the outer side wall of the semi-disc, and the rotating gear meshes with the transmission gear.

[0020] By adopting the above technical solution, when the two semi-circular discs abut against each other to form a disc that gathers the material inlet of the bag, the motor is started to drive the rotating gear to rotate, which in turn drives the transmission gear to rotate, thereby causing the entire disc to rotate, which in turn twists the tightened bag body, making the gathered part of the bag body twist together, improving the tightness of the gathered part of the bag body, and thus improving the sealing performance of the bag body.

[0021] Optionally, the movable plate is provided with a guide block, and the side wall of the semi-circular disk is provided with a guide groove. The guide groove is arranged along the circumference of the semi-circular disk, and the guide block is embedded in the guide groove and can move in the guide groove.

[0022] By adopting the above technical solution, when the rotating gear drives the transmission gear to rotate the disc, the guide block moves relatively within the guide groove, improving the stability of the connection between the semi-disc and the moving plate. The inner wall of the guide groove abuts against the side wall of the guide block, which restricts the guidance, making the disc rotate on its own axis and less prone to deflection. This ensures that the disc rotates at a fixed point on the bag body, improving the stability of the disc tightening the bag body.

[0023] Optionally, a plurality of rollers are rotatably connected to the connecting rod, and the plurality of rollers are arranged at intervals along the length direction of the connecting rod.

[0024] By adopting the above technical solution, when the support frame moves, that is, when the connecting rod moves in the slide, the roller moves in the slide, causing the roller to rotate, thereby changing the sliding friction between the connecting rod and the slide into the rolling friction between the roller and the slide, reducing the friction force and making it easier for the support frame to move with the bag.

[0025] In summary, this application includes at least one of the following beneficial effects: 1. As the support frame gradually inserts the bag into the box, the suction rod is aligned with the corresponding slot and inserted. At the opening of the slot, the suction rod abuts against the guide surface and moves along the guide surface, allowing the suction rod to gradually move from the end of the guide surface into the slot. The guide surface is inclined to guide the movement of the suction rod, making it easier for the suction rod to be inserted into the slot. At the same time, the position of the suction rod also gradually moves away from the bag under the action of the guide surface, thereby extracting the gas in the suction cup, causing the suction cup to generate negative pressure. The suction cup is then used to adsorb the bag the moment it enters the box, thus completing the positioning of the bag on the support frame after it is inserted into the box. That is, the installation and positioning of the bag are carried out simultaneously. 2. When the goods arrive at the designated point and need to be unloaded, the cylinder is activated to drive one end of the bag towards the inlet. During this process, the bag bends. After the cylinder drives one end of the bag through the inlet, it continues to move until the entire inner wall of the bag is completely turned outward, that is, the inside of the bag is completely exposed. This allows the goods inside the bag to be fully displayed. Especially for powdery goods, it is easy to completely unload the goods from the bag. This not only improves the integrity of unloading but also improves the cleanliness of the bag, so that it can be used for loading different goods next time. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the box; Figure 2 This is a schematic diagram of the internal structure of the box; Figure 3 This is a structural diagram showing the connection between the support frame and the bag body; Figure 4 This is a structural cross-sectional view showing the connection between the air intake assembly and the bag body; Figure 5 for Figure 2 Enlarged view of point A in the middle; Figure 6 This is a structural cross-sectional view showing the connection between the exhaust pipe and the bag body; Figure 7 This is a schematic diagram showing the connection between the cylinder and the bag body. Figure 8 for Figure 3 Enlarged view of point B in the middle.

[0027] In the diagram: 10. Box body; 11. Slide rail; 12. Slide groove; 13. Guide surface; 20. Support frame; 21. Connecting rod; 211. Roller; 22. Ring tube; 30. Bag body; 31. Exhaust port; 40. Suction assembly; 41. Suction pipe; 42. Suction rod; 43. Piston; 44. Push spring; 50. Suction cup; 60. Exhaust pipe; 61. Baffle; 70. Cylinder; 80. Shrink assembly; 81. Moving plate; 811. Guide block; 82. Semi-circular disc; 821. Shrink opening; 822. Guide groove; 823. Transmission gear; 90. Motor; 91. Rotating gear. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0029] This application discloses a powder liner bag for a shipping container. (Refer to...) Figure 1 and Figure 2 The container powder liner bag includes a bag body 30 and a support frame 20 disposed within the container body 10. One end of the container body 10 is open along its length, allowing the bag body 30 to be fully inserted into the container body 10 along its length. A material inlet is provided at one end of the bag body 30 along its length. When the bag body 30 is inserted into the container body 10, the material inlet communicates with the opening of the container body 10. Loading and unloading of goods in the bag body 30 are both achieved through the material inlet / outlet. The support frame 20 is fitted onto the bag body 30. To facilitate the transport of goods in the bag body 30 and to close the material inlet, a shrink-fit component 80 for sealing the material inlet is provided on the support frame 20.

[0030] Reference Figure 2 and Figure 3 The support frame 20 includes a connecting rod 21 and several ring tubes 22. The ring tubes 22 are coaxially sleeved on the bag body 30. The ring tubes 22 are arranged at intervals along the length of the bag body 30, and one ring tube 22 located at the material inlet is glued to the bag body 30. The connecting rod 21 is arranged along the length of the bag body 30 and is fixed to the outer wall of the ring tubes 22. A slide rail 11 is fixed on the inner wall of the box body 10. The slide rail 11 is arranged along the length of the bag body 30. The connecting rod 21 is inserted into the slide rail 11 and can move in the slide rail 11.

[0031] Reference Figure 2 and Figure 3 Several rollers 211 are rotatably connected to the connecting rod 21. The rollers 211 are arranged at intervals along the length of the connecting rod 21 and abut against the inner wall of the slide rail 11. In use, the support frame 20 is first pulled out of the housing 10, that is, the connecting rod 21 slides in the slide rail 11. At this time, the rollers 211 roll and slide in the slide rail 11, which facilitates the movement of the support frame 20 in the housing 10. When the support frame 20 is removed from the box 10, the bag 30 is exposed outside the box 10, making it easier to inspect and repair the bag 30. Then, the shrink assembly 80 is opened, and granular or powdered goods are poured into the bag 30 through the feed port. The entire support frame 20 is then pushed into the box 10. During this process, the connecting rod 21 moves in the slide 11. The slide 11 restricts and guides the connecting rod 21, allowing the support frame 20 to be inserted smoothly into the box 10 with the bag 30. The connecting rod 21 and the slide 11 work together to limit the support frame 20 from causing the bag 30 to shake in the box 10, thus improving the stability of the bag 30 installed in the box 10. When the box 10 is transported to the designated location, the support frame 20 is pulled out of the box 10 again during unloading. This facilitates the unloading process while allowing for the inspection of the bag 30 and timely repair of any damaged parts during transportation. Compared to the existing technology that involves disassembling the entire bag 30 from the box 10, inspecting it, and then binding it sequentially, this method is more convenient.

[0032] Reference Figure 3 and Figure 4 To increase the stability of the bag body 30 on the support frame 20, an air suction assembly 40 is provided on the ring tube 22. The air suction assembly 40 is connected to a suction cup 50, the opening of which faces the bag body 30 and is in contact with the outer wall of the bag body 30. Specifically, the air suction assembly 40 includes an air suction pipe 41 and an air suction rod 42. The air suction pipe 41 is fixed on the ring tube 22 and is arranged along the radial direction of the ring tube 22. The ring tube 22 has an internal cavity, and both the air suction pipe 41 and the suction cup 50 are in communication with the cavity.

[0033] Reference Figure 4 The suction rod 42 is inserted into the suction tube 41. The suction tube 41 is equipped with a piston 43. The circumferential side wall of the piston 43 is in contact with the inner wall of the suction tube 41. The piston 43 is fixed to one end of the suction rod 42. A push spring 44 is sleeved on the suction rod 42. The push spring 44 is located inside the suction tube 41 and on the side of the piston 43 away from the bag body 30. The push spring 44 is used to move the piston 43 toward the bag body 30.

[0034] In the initial state, the suction rod 42, under the action of the push spring 44, drives the piston 43 to move closer to the bag body 30, so that the bag body 30 is only attached to the suction cup 50, sealing the opening of the suction cup 50. Then, after the support frame 20 is inserted into the box 10, the suction rod 42 is moved away from the bag body 30, squeezing the push spring 44, causing the piston 43 to move away from the suction cup 50, thereby drawing gas from the suction cup 50, generating suction force inside the suction cup 50, and thus adsorbing the bag body 30 onto the suction cup 50. That is, the bag body 30 is fixedly connected to the suction cup 50, realizing the fixed-point fixation of the bag body 30, so that the bag body 30 cannot move as a whole within the support frame 20.

[0035] Reference Figure 4 and Figure 5 To facilitate the movement of the suction rod 42, a groove 12 is provided on the inner wall of the box 10 along the length of the bag 30. The suction rod 42 can be inserted into the groove 12 and move in the groove 12. The groove 12 passes through the opening of the box 10. A guide surface 13 is cut on the inner wall of the groove 12. The guide surface 13 is located at the opening of the box 10, and the end of the guide surface 13 near the opening of the box 10 is inclined towards the center of the box 10. The suction rod 42 can slide on the guide surface 13 to drive the piston 43 to move away from the bag 30.

[0036] As the support frame 20, carrying the bag 30, is gradually inserted into the box 10, the suction rod 42 is aligned with the corresponding groove 12 and inserted. At the opening of the groove 12, the suction rod 42 abuts against the guide surface 13 and moves along the guide surface 13, causing the suction rod 42 to gradually move from the end of the guide surface 13 into the groove 12. The guide surface 13 is inclined to guide the movement of the suction rod 42, making it easier for the suction rod 42 to be inserted into the groove 12. At the same time, the position of the suction rod 42 also gradually moves away from the bag 30 under the action of the guide surface 13, thereby extracting the gas from the suction cup 50, causing the suction cup 50 to generate negative pressure. The bag 30 is adsorbed the moment the suction cup 50 enters the box 10, so that the bag 30 is positioned on the support frame 20 after it is inserted into the box 10. That is, the installation and positioning of the bag 30 are carried out simultaneously, making the operation convenient.

[0037] Reference Figure 3 and Figure 6 During transportation, the air pressure inside the bag 30 will change due to temperature changes. To prevent the bag 30 from expanding or contracting due to pressure difference, an exhaust port 31 is provided through the top wall of the bag 30. The exhaust port 31 is connected to an exhaust pipe 60. The exhaust pipe 60 is fixed on the outer side wall of the bag 30. A baffle 61 is provided in the exhaust pipe 60, and the circumferential side wall of the baffle 61 is attached to the inner wall of the exhaust pipe 60.

[0038] When the air pressure inside the bag 30 changes, the gas in the bag 30 continuously enters and exits the exhaust pipe 60 through the exhaust port 31. This causes the baffle 61 to move along the length of the exhaust pipe 60, thereby allowing the gas to enter and exit the bag 30 when the pressure changes. This balances the pressure inside and outside the bag 30, preventing the bag 30 from expanding or contracting due to pressure differences and protecting the safety of the goods. The baffle 61 does not affect the flow of gas while preventing the goods in the bag 30 from leaking out, thus improving the airtightness of the bag 30.

[0039] Reference Figure 3 and Figure 7 To improve the integrity of unloading, a cylinder 70 is connected to the end of the bag body 30 away from the material outlet. The cylinder 70 is mounted on the box body 10 by bolts. The output end of the cylinder 70 is fixed to the bag body 30. The cylinder 70 is used to drive the end of the bag body 30 away from the material outlet to move towards or away from the material outlet.

[0040] When the goods arrive at the designated point and need to be unloaded, the cylinder 70 is activated, driving one end of the bag 30 towards the feed inlet. During this process, the bag 30 bends. After the cylinder 70 drives one end of the bag 30 through the feed inlet, it continues to move until the entire inner wall of the bag 30 is completely turned outward, that is, the inside of the bag 30 is completely exposed. This allows the goods inside the bag 30 to be fully displayed. Especially for powdery goods, it is easy to completely unload the goods from the bag 30, which not only improves the integrity of unloading but also improves the cleanliness of the bag 30, so that it can be used for loading different goods next time.

[0041] Reference Figure 3 and Figure 8 The shrinking assembly 80 includes two movable plates 81 and two semicircular disks 82. The two movable plates 81 are arranged opposite each other and slidably connected to the annular tube 22. Specifically, the movable plates 81 can move radially along the annular tube 22. The two semicircular disks 82 correspond one-to-one with the movable plates 81 and are disposed on their respective movable plates 81. Specifically, the movable plates 81 are provided with guide blocks 811, and the side walls of the semicircular disks 82 are provided with guide grooves 822. The guide grooves 822 are arranged along the circumference of the semicircular disks 82, and the guide blocks 811 are embedded in the guide grooves 822 and can move within the guide grooves 822. The two semicircular disks 82 can be spliced ​​to form a disc, and a shrinking opening 821 is opened in the middle of the disc. The inner wall of the shrinking opening 821 is serrated, and the end of the bag body 30 with the material outlet can pass through the shrinking opening 821.

[0042] In the initial state, the two moving plates 81 are far apart. After the goods are loaded into the bag body 30, the two moving plates 81 are driven to move closer to each other, so that the inner wall of the contraction opening 821 squeezes the bag body 30, causing the end of the bag body 30 to gradually close until the two semicircular discs 82 abut against each other. At this time, the end of the bag body 30 is constricted in the contraction opening 821, that is, the material outlet and the bag body 30 are separated by the discs. The bag body 30 is in a closed state at the position of the discs, so that the goods can be stored in the bag body 30 and are not easy to leak out through the material outlet, thus facilitating the transportation of goods.

[0043] When the two semicircular discs 82 abut against each other to form a disc that gathers the material inlet of the bag body 30, the disc is rotated so that the guide block 811 moves relative to the guide groove 822, thereby causing the entire disc to rotate and twist the tightened bag body 30, so that the gathered part of the bag body 30 is twisted together, improving the tightness of the gathered part of the bag body 30, and thus improving the sealing performance of the bag body 30.

[0044] When the two semicircular discs 82 are joined together, the two movable plates 81 are close to each other. When the support frame 20 inserts the bag body 30 into the box 10, the end of the movable plate 81 is in contact with the inner wall of the box 10, thereby restricting the two movable plates 81 from moving away from each other, that is, maintaining the state of the two semicircular discs 82 in contact, ensuring the clamping effect of the shrinkage opening 821 on the bag body 30, and preventing the opening of the material outlet.

[0045] Reference Figure 8 To facilitate the rotation of the disc, a motor 90 is mounted on one of the movable plates 81. A rotating gear 91 is coaxially fixed to the motor 90, and a transmission gear 823 is fixed to the outer wall of the semi-disc 82. The rotating gear 91 meshes with the transmission gear 823. Starting the motor 90 drives the rotating gear 91 to rotate, which in turn drives the transmission gear 823 to rotate, thus causing the disc to rotate. The operation is convenient.

[0046] The implementation principle of the container powder liner bag in this application embodiment is as follows: In use, the support frame 20 is first pulled out from the container 10, so that the bag 30 is exposed outside the container 10, which facilitates the inspection and repair of the bag 30. Then, granular or powdery goods are poured into the bag 30, and the entire support frame 20 is pushed into the container 10. During this process, the connecting rod 21 moves in the slide 11. The slide 11 restricts and guides the connecting rod 21, so that the support frame 20 can be inserted into the container 10 with the bag 30 flat. The connecting rod 21 and the slide 11 cooperate to restrict the support frame 20 from causing the bag 30 to shake in the container 10, thereby improving the stability of the bag 30 installed in the container 10. When the box 10 is transported to the designated location, the support frame 20 is pulled out of the box 10 again during unloading. This facilitates the unloading process while allowing for the inspection of the bag 30 and timely repair of any damaged parts during transportation. Compared to the existing technology that involves disassembling the entire bag 30 from the box 10, inspecting it, and then binding it sequentially, this method is more convenient.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A container powder liner bag, characterized in that, The system includes a bag body (30) and a support frame (20) located inside a box body (10). The support frame (20) includes a connecting rod (21) and several ring tubes (22). The ring tubes (22) are coaxially sleeved on the bag body (30). The several ring tubes (22) are arranged at intervals along the length of the bag body (30). The connecting rod (21) is arranged along the length of the bag body (30) and is fixed on the outer side wall of the several ring tubes (22). A slide rail (11) is fixed on the inner wall of the box body (10). The slide rail (11) is arranged along the length of the bag body (30). The connecting rod (21) is inserted into the slide rail (11) and can move in the slide rail (11). The inner wall of the ring tube (22) is provided with a suction cup (50), the suction cup (50) is connected to the ring tube (22), the suction cup (50) can abut against the bag body (30), the ring tube (22) is provided with a suction assembly (40), the suction assembly (40) moves to adsorb the suction cup (50) onto the bag body (30); The suction assembly (40) includes a suction pipe (41) and a suction rod (42). The suction pipe (41) is disposed on the annular pipe (22). The suction rod (42) is inserted into the suction pipe (41). A piston (43) is provided inside the suction pipe (41). The circumferential sidewall of the piston (43) is in contact with the inner wall of the suction pipe (41). The piston (43) is fixed to one end of the suction rod (42). A push spring (44) is sleeved on the suction rod (42). The push spring (44) is located inside the suction pipe (41) and on the side of the piston (43) away from the bag body (30). The push spring (44) is used to move the piston (43) toward the bag body (30). The inner wall of the box (10) is provided with a groove (12) along the length of the bag (30). The suction rod (42) can be inserted into the groove (12) and move in the groove (12). The groove (12) passes through the opening of the box (10). The inner wall of the groove (12) is provided with a guide surface (13). The guide surface (13) is located at the end of the box (10), and the end of the guide surface (13) near the end of the box (10) is inclined towards the center of the box (10). The suction rod (42) can slide on the guide surface (13) to drive the piston (43) to move away from the bag (30).

2. The container powder inner liner bag according to claim 1, characterized in that, The bag body (30) is connected to an exhaust port (31), and the exhaust port (31) is connected to an exhaust pipe (60). The exhaust pipe (60) is fixed on the outer side wall of the bag body (30). A baffle (61) is provided in the exhaust pipe (60), and the circumferential side wall of the baffle (61) is in contact with the inner wall of the exhaust pipe (60).

3. The container powder inner liner bag according to claim 1, characterized in that, The bag body (30) has a material inlet at one end along its length. A ring tube (22) near the material inlet is fixed to the bag body (30). A cylinder (70) is connected to the other end of the bag body (30). The cylinder (70) is mounted on the box (10). The output end of the cylinder (70) is fixed to the bag body (30). The cylinder (70) is used to drive the end of the bag body (30) away from the material inlet to move towards or away from the material inlet. A shrinkage assembly (80) for closing the material inlet is provided on the ring tube (22) located at the material inlet.

4. The container powder inner liner bag according to claim 3, characterized in that, The shrinking assembly (80) includes two movable plates (81) and two semi-circular discs (82). The two movable plates (81) are arranged opposite to each other and are slidably connected to the ring tube (22). The two semi-circular discs (82) correspond one-to-one with the movable plates (81). The semi-circular discs (82) are located on the corresponding movable plates (81). The two semi-circular discs (82) can be spliced ​​together to form a disc. The middle part of the disc is provided with a shrinking opening (821). The end of the bag body (30) with the material outlet can pass through the shrinking opening (821).

5. The container powder inner liner bag according to claim 4, characterized in that, The semi-disc (82) is slidably connected to the movable plate (81). The semi-disc (82) can move on the movable plate (81) about the center of the semi-disc (82). One of the movable plates (81) is equipped with a motor (90). The motor (90) is coaxially fixed with a rotating gear (91). A transmission gear (823) is fixed on the outer side wall of the semi-disc (82). The rotating gear (91) meshes with the transmission gear (823).

6. The container powder inner liner bag according to claim 4, characterized in that, The movable plate (81) is provided with a guide block (811), and the side wall of the semi-circular disk (82) is provided with a guide groove (822). The guide groove (822) is arranged along the circumference of the semi-circular disk (82). The guide block (811) is embedded in the guide groove (822) and can move in the guide groove (822).

7. The container powder inner liner bag according to claim 1, characterized in that, A plurality of rollers (211) are rotatably connected to the connecting rod (21), and the plurality of rollers (211) are arranged at intervals along the length direction of the connecting rod (21).

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