A vacuum chamber air-suction packaging machine for open bags
By using the negative pressure air gap and full-process negative pressure design of the open-bag vacuum chamber suction packaging machine, the problems of low suction efficiency and powder scattering in powder packaging machinery are solved, realizing a highly efficient packaging process without dust spillage.
Patent Information
- Application Number
- CN202521957516.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-11
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-09-11
AI Technical Summary
Existing powder packaging machinery is inefficient during the air intake process and the powder is prone to escape, which affects the environment and human health.
The open-bag vacuum chamber suction packaging machine uses a negative pressure air gap and negative pressure interface between the powder feeding device and the vacuum packaging chamber. It uses a negative pressure fan to draw air out of the packaging bag, and combined with the design of return air port and dust removal port, it achieves full negative pressure sealed packaging.
It significantly improves air intake efficiency, reduces powder escape, protects the environment and human health, and avoids the problems of nanorod clogging and microporous filtration devices.
Smart Images
Figure CN224941376U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging machinery, and in particular to an open-pocket vacuum chamber suction packaging machine. Background Technology
[0002] Powder is a common raw material and product state in industrial production. During the transfer process, powder usually needs to be packaged uniformly using specialized equipment before transportation. Existing powder packaging machinery usually fixes the packaging bag to the feed port of the feeding device and then fills it. After filling and weighing, the air inside the packaging bag is sucked out to make the packaging bag completely sealed. In order to prevent the powder inside the bag from escaping due to the suction action, some manufacturers now install nanorods on the suction valve to filter the powder. Although this method effectively reduces the escape of powder in practical applications, on the one hand, with the increase of use time, the pores on the nanorods are easily blocked, resulting in a decrease in suction efficiency. On the other hand, in actual use, some nanoscale small particles inevitably escape into the surrounding environment. Although this escape is not obvious, it still has a certain impact on the physical and mental health of on-site personnel. Utility Model Content
[0003] The main technical problem solved by this utility model is to provide an open-bag vacuum chamber suction packaging machine that can ensure the suction efficiency during powder packaging and reduce the dispersion of powder in the environment.
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An open-bag vacuum chamber suction packaging machine is provided. The open-bag vacuum chamber suction packaging machine is installed on one side of the main frame. A powder feeding device is installed on the worktable at the top of the main frame, and a power chamber is installed at the rear. The open-bag vacuum chamber suction packaging machine includes: a touch screen, a vacuum packaging chamber, and a powder packaging mechanism. The vacuum packaging chamber is provided with a return air port and a dust removal port. The touch screen is installed on the outside of the vacuum packaging chamber. The vacuum packaging chamber is equipped with a sealed door. The powder packaging mechanism is installed on the vacuum packaging chamber. The vacuum packaging chamber is equipped with a feeding sleeve. One end of the feeding sleeve is connected to the powder feeding device, and the other end passes through the outer wall of the vacuum packaging chamber to enter the vacuum packaging chamber. It can feed the material conveyed by the powder feeding device into the powder packaging container. The feeding sleeve consists of an inner tube and an outer tube. The gap between the inner tube and the outer tube forms a negative pressure air gap. A negative pressure interface is installed on the tube wall of the part of the feeding sleeve outside the vacuum packaging chamber to connect to the negative pressure air gap. The negative pressure interface is connected to a negative pressure fan through a pipe.
[0005] In a preferred embodiment of this utility model, the powder packaging mechanism is an open-bag weighing and clamping mechanism. The vacuum packaging chamber consists of a filling chamber and a clamping chamber. The filling chamber is located at the top of the clamping chamber. The sealing door is installed on the clamping chamber. The feeding sleeve is installed at the center of the top of the filling chamber. The open-bag weighing and clamping mechanism is installed inside the vacuum packaging chamber, enabling the open bag to be fed from the clamping chamber into the filling chamber for filling, and automatically detaching from the filling chamber after filling. The open-bag weighing and clamping mechanism includes a lifting cylinder, a guide rod, a weighing seat, a sleeve fixing frame, a filling sleeve, a bag clamping arm, and a clamping cylinder. The lifting cylinder is installed inside the clamping chamber. The top end of the guide rod is fixed to the top of the filling chamber, and the tail end extends vertically downward into the clamping chamber. The weighing seat is installed on the guide rod and hinged to the top end of the telescopic rod of the lifting cylinder, enabling it to reciprocate up and down along the guide rod as the telescopic rod of the lifting cylinder moves. The diameter of the filling sleeve is larger than the diameter of the feeding sleeve. The loading sleeve is symmetrically fitted with bag clamping arms that match the shape of the sleeve body on both sides. Two synchronous clamping cylinders are symmetrically installed between the two bag clamping arms, and are symmetrically arranged on the other two sides of the loading sleeve. The loading sleeve is connected to the weighing base via a sleeve fixing frame. When the extension rod of the lifting cylinder extends, it can drive the loading sleeve to move vertically upwards and fit onto the feeding sleeve. When the extension rod of the lifting cylinder retracts, it can drive the loading sleeve to move vertically downwards and disengage from the feeding sleeve. The weighing base has two sets of parallel clamping wheels, which are simultaneously clamped onto the guide rod. A hinge joint connected to the extension rod of the lifting cylinder is provided on the weighing base between the two sets of clamping wheels. A connecting plate is provided on the inner side of the weighing base, and the connecting plate is fixedly connected to the sleeve fixing frame.
[0006] In a preferred embodiment of this utility model, a screw feeder is installed inside the feed sleeve. One end of the screw feeder is connected to the powder feeding device, and the other end passes through the feed sleeve and enters the vacuum packaging chamber. The outlet of the screw feeder is lower than the outlet of the feed sleeve, and a sealing ring is provided between the inlet of the feed sleeve and the screw feeder.
[0007] In a preferred embodiment of this utility model, the sealed compartment door is a single-opening or multi-opening door.
[0008] In a preferred embodiment of this utility model, the sealed chamber door includes a door frame, a door panel, a door hinge, a drive cylinder, and a push rod. The door frame is arranged on the vacuum packaging chamber, and a sealing gasket is provided around the edge of the door frame. A door hinge is installed on one side of the door frame. The door panel is shaped to match the door frame and is rotatably mounted on the door frame via the door hinge. There are multiple drive cylinders, which are installed in parallel on the outside of the vacuum packaging chamber. The extension rod of each drive cylinder is movably connected to the door panel via a push rod.
[0009] In a preferred embodiment of this utility model, the air return port and the dust removal port are both located on one side close to the main frame. The air return port is installed on the upper part of the vacuum packaging chamber, and the dust removal port is installed on the lower part of the vacuum packaging chamber. The dust removal port is connected to a vacuum cleaner.
[0010] In a preferred embodiment of this utility model, a vacuum tube interface is installed below the workbench surface. There are two vacuum tube interfaces, namely a near-end interface and a far-end interface. The near-end interface is installed on the side of the main frame closer to the negative pressure interface, and the far-end interface is installed on the side of the main frame away from the negative pressure interface. The near-end interface and the negative pressure interface, as well as the near-end interface and the far-end interface, are connected by pipes. The far-end interface is connected to a negative pressure fan via a pipe.
[0011] In a preferred embodiment of this invention, an observation window is also installed on the vacuum packaging chamber.
[0012] The beneficial effects of this utility model are as follows: This utility model optimizes the overall structure of existing powder packaging machines. A vacuum packaging chamber is set up at the packaging position. After the powder is filled and weighed, the air inside the packaging bag is sucked away by the overall negative pressure suction method. Then, the dust that escapes from the vacuum packaging chamber is sucked away by the return air port. The suction efficiency is significantly enhanced compared with nanorod suction. Moreover, since nanorods, suction tubes and other microporous filter suction devices are not used, there is no problem of material clogging the micropores and affecting the suction effect. In addition, because the whole process is in a vacuum-sealed environment, there is no dust leakage during the bagging process, which has almost no impact on the surrounding environment and is more conducive to the physical and mental health of on-site personnel. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the loading structure in a preferred embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the embodiment shown when there is no load. Figure 3 This is a schematic diagram of the operation of the bag clamping mechanism in the illustrated embodiment; Figure 4This is a side view of the negative pressure loading chamber. Figure 5 This is a schematic diagram of the opening and closing action of the two side doors of the negative pressure loading chamber shown. The components in the attached diagram are labeled as follows: 1. Operator; 2. Screw feeder; 3. Vacuum packaging chamber; 4. Weighing and clamping mechanism; 5. Main frame; 301. Touch screen; 302. Loading chamber; 303. Bag clamping chamber; 304. Front door panel; 305. Side door panel; 306. Front door hinge; 307. Side door hinge; 308. Front door drive cylinder; 309. Side door drive cylinder; 3010. Front door push rod; 3011. Side door push rod; 3012. Front door sealing gasket; 3013. Side door sealing gasket; 3014. Feed sleeve; 3015. Negative pressure interface; 3016. Air return port; 3017. Dust removal port; 3018. Observation window; 401. Guide rod; 402. Lifting cylinder; 403. Clamping wheel assembly; 404. Hinge joint; 405. Connecting plate; 406. Sleeve fixing frame; 407. Loading sleeve; 408. Synchronous clamping cylinder; 409. Bag clamping arm; 501. Near-end interface, 502. Far-end interface, 503. Workbench. Detailed Implementation
[0014] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.
[0015] Please see Figures 1 to 5 The embodiments of this utility model include: An open-bag vacuum chamber suction packaging machine is provided. The machine is mounted on one side of a main frame 5. A powder feeding device is installed on a workbench 503 at the top of the main frame 5, and a power chamber 6 is installed at the rear. The machine includes a touch screen 301, a vacuum packaging chamber 3, and an open-bag weighing and clamping mechanism 4. The vacuum packaging chamber consists of a filling chamber 302 and a bag clamping chamber 303. The filling chamber 302 is located on top of the bag clamping chamber 303. The vacuum packaging chamber 3 is equipped with… The filling chamber 302 includes a return air port 3016 and a dust removal port 3017. The touchscreen 301 is mounted on the outside of the filling chamber 302. A sealed door is installed on the bag clamping chamber 303. The open bag weighing and clamping mechanism 4 is installed inside the vacuum packaging chamber 3, capable of feeding the open bag into the filling chamber 302 after the bag is clamped in the bag clamping chamber 303. A feed sleeve 3014 is located at the center of the top of the filling chamber 302, passing through the top plate of the filling chamber 302 and entering the filling chamber 302. A negative pressure interface 3015 is installed on the wall of the portion of the feed sleeve 3014 located above the top plate. The negative pressure interface 3015 is connected to a negative pressure fan via a pipe. A longitudinal screw feeder 2, which is connected to the discharge end of the powder feeding device, is installed inside the feed sleeve 3014. The longitudinal screw feeder 2 passes through the feed sleeve 3014 and enters the vacuum packaging chamber 3, which can feed the material in the powder feeding device into the open bag loaded in the weighing bag clamping mechanism 4. The outlet of the longitudinal screw feeder 2 is positioned lower than the outlet of the feed sleeve 3014, and a sealing ring is provided between the inlet of the feed sleeve 3014 and the screw feeder 2; the open bag weighing and clamping mechanism 4 includes a lifting cylinder 402, a guide rod 401, a weighing seat, a sleeve fixing frame 406, a filling sleeve 407, a bag clamping arm 409, and a bag clamping cylinder 408. The lifting cylinder 402 is installed inside the bag clamping chamber 303, and the top end of the guide rod 401 is fixed to the bag clamping arm 308. The top of the material chamber extends vertically downward into the bag clamping chamber 303. The weighing seat is mounted on the guide rod 401. The weighing seat is provided with two sets of parallel clamping wheel sets 403. The two sets of clamping wheel sets 403 are clamped on the guide rod 401 at the same time. The weighing seat between the two sets of clamping wheel sets 403 is provided with a hinge joint 404 that is connected to the telescopic rod of the lifting cylinder 402. The inner side of the weighing seat is provided with a connecting plate 405, which is fixedly connected to the sleeve fixing frame 406. The diameter of the filling sleeve 407 is larger than that of the feeding sleeve 3014. Material bag clamping arms 409, matching the shape of the sleeve body, are symmetrically installed on both sides of the filling sleeve 407. Two synchronous clamping cylinders 408 are symmetrically installed between the two material bag clamping arms 409. The two synchronous clamping cylinders 408 are symmetrically arranged on the other two sides of the filling sleeve 407. The filling sleeve 407 is connected to the weighing base via a sleeve fixing bracket 406. When the extension rod of the lifting cylinder 402 extends, it can drive the filling sleeve 407 to move vertically upwards and onto the feeding sleeve 3014. When the extension rod of the lifting cylinder 402 retracts, it can drive the filling sleeve 407 to move vertically downwards and disengage from the feeding sleeve 3014. This structure ensures the stability of the reciprocating motion of the weighing base during packaging, thereby guaranteeing the accuracy of the weighing data during filling.
[0016] There are two sealed compartment doors: a front sealing door and a side sealing door. The front sealing door includes a front door frame, a front door panel 304, a front door hinge 306, a front door drive cylinder 308, and a front door push rod 3010. The front door frame is located on the front of the bag clamping chamber 303. A front door sealing gasket 3012 is provided around the edge of the front door frame. The front door hinge 306 is installed on the side of the front door frame away from the touch screen 301. The shape of the front door panel 304 matches the front door frame. The front door panel 304 is rotatably mounted on the front door frame via the front door hinge 306. There are two front door drive cylinders 308, which are symmetrically and parallelly installed on the outer wall of the bag clamping chamber 303 on one side of the front door hinge 306. The front door push rod 3010 is L-shaped, and each front door drive cylinder 308 has a telescopic rod. All are movably connected to the front door panel 304 via a front door push rod 3010; the side sealing door includes a side door frame, a side door panel 305, a side door hinge 307, a side door drive cylinder 309, and a side door push rod 3011. The side door frame is lower than the touch screen 301. A side door sealing gasket 3013 is provided around the edge of the side door frame. The side door hinge 307 is installed on the side of the side door frame near the main frame 5. The shape of the side door panel 305 matches the side door frame. The side door panel 305 is rotatably mounted on the side door frame via the side door hinge 307. There are two side door drive cylinders 309, which are symmetrically and parallelly mounted on the main frame 5. The telescopic rod of each side door drive cylinder 309 is movably connected to the front door panel via a side door push rod 3011. By setting two sealed compartment doors, the bag clamping action and the bag removal action after the filling is completed can be performed from two different directions, which effectively avoids the action interference when operating from only one direction, improves the smoothness of the production line operation, and facilitates the automation design of the overall production line.
[0017] The air return port 3016 and dust removal port 3017 are located on one side near the main frame 5. The air return port 3016 is installed on the upper part of the loading chamber 302, and the dust removal port 3017 is installed on the lower part of the bag clamping chamber 303. The dust removal port 3017 is connected to a vacuum cleaner. By setting the air return port, air can be pre-returned before opening the sealed chamber door after packaging, reducing the pressure difference between the inside and outside and reducing the resistance to opening the door. The dust removal port 3017, connected to a vacuum cleaner, can be used after opening the sealed chamber door to suck up the dust that falls around the material bag, preventing dust from entering the surrounding environment with the material bag.
[0018] A vacuum tube interface is installed below the tabletop of the workbench 503. There are two vacuum tube interfaces: a near-end interface 501 and a far-end interface 502. The near-end interface 501 is installed on the side of the main frame 5 closer to the negative pressure interface 3015, and the far-end interface 502 is installed on the side of the main frame 5 away from the negative pressure interface 3015. The near-end interface 501 and the negative pressure interface 3015, and the near-end interface 501 and the far-end interface 502 are connected by pipes. The far-end interface 502 is connected to a negative pressure fan via a pipe. This design allows the negative pressure extraction pipe to span the entire main frame 5, thus facilitating the flexible deployment of devices such as negative pressure fans as needed.
[0019] An observation window 3018 is installed on the wall of the bag-clamping chamber 303, and the observation window 3018 is located on the side away from the side sealing door. Through the observation window, on-site inspectors can observe the packaging status inside the vacuum packaging chamber 3 at any time.
[0020] In actual use, the present invention is first used by on-site personnel 1 to put the material bag onto the filling sleeve 407. Then, the vacuum packaging chamber 3 is closed, and the telescopic rod of the lifting cylinder 402 extends, pushing the weighing seat to rise along the guide rod 401 to a preset height. At this time, the filling sleeve 407 completely covers the feeding sleeve 3014. Then, the screw feeder 2 is opened to start filling. During the filling process, the telescopic rod continuously retracts, causing the material bag and the filling sleeve 407 to continuously descend to the starting position and suck in air for weighing. After the weighing reaches the standard, the two return air ports are opened together to use air convection to suck away the dust in the vacuum packaging chamber 3 under negative pressure. Finally, the sealed door is opened, and on-site personnel 1 takes away the material bag. During the filling process, on-site personnel 1 can observe the filling status through the observation window 3018 to prevent malfunctions. The entire bagging operation is conducted under negative pressure in the vacuum packaging chamber 3, allowing excess dust to be promptly removed. Compared to traditional nano-valve suction packaging equipment, the suction efficiency is significantly enhanced. Furthermore, since it eliminates the need for microporous filtration devices such as nanorods and suction tubes, there is no issue of material clogging the micropores and affecting the suction effect. Long-term use maintains almost the same suction effect. Additionally, because the entire bagging process is conducted in a vacuum-sealed environment, there is no dust leakage, resulting in minimal impact on the surrounding environment and promoting the health and well-being of on-site personnel. The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An open-bag vacuum chamber suction packaging machine, wherein the open-bag vacuum chamber suction packaging machine is installed on one side of a main frame, a powder feeding device is installed on the worktable at the top of the main frame, and a power chamber is installed at the rear, characterized in that, The open-bag vacuum chamber suction packaging machine includes: a touch screen, a vacuum packaging chamber, and a powder packaging mechanism. The vacuum packaging chamber is equipped with a return air port and a dust removal port. The touch screen is installed on the outside of the vacuum packaging chamber. The vacuum packaging chamber is equipped with a sealed door. The powder packaging mechanism is installed inside the vacuum packaging chamber and can load powder packaging containers. A feeding sleeve is installed on the vacuum packaging chamber. One end of the feeding sleeve is connected to the powder feeding device, and the other end passes through the outer wall of the vacuum packaging chamber and enters the vacuum packaging chamber, enabling the material conveyed by the powder feeding device to be fed into the powder packaging container. The feeding sleeve consists of an inner tube and an outer tube, and the gap between the inner tube and the outer tube forms a negative pressure air gap. A negative pressure interface is installed on the tube wall of the part of the feeding sleeve outside the vacuum packaging chamber to connect to the negative pressure air gap. The negative pressure interface is connected to a negative pressure fan through a pipe.
2. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, The powder packaging mechanism is an open-bag weighing and clamping mechanism. The vacuum packaging chamber consists of a filling chamber and a clamping chamber. The filling chamber is located at the top of the clamping chamber. The sealing door is installed on the clamping chamber. The feeding sleeve is installed at the center of the top of the filling chamber. The open-bag weighing and clamping mechanism is installed inside the vacuum packaging chamber. It can send the open bag from the clamping chamber into the filling chamber for filling and automatically detach from the filling chamber after filling.
3. The open-bag vacuum chamber suction packaging machine according to claim 2, characterized in that, The open-bag weighing and clamping mechanism includes a lifting cylinder, a guide rod, a weighing seat, a sleeve fixing frame, a filling sleeve, a bag clamping arm, and a bag clamping cylinder. The lifting cylinder is installed in the bag clamping chamber. The top end of the guide rod is fixed to the top of the filling chamber, and the tail end extends vertically downward into the bag clamping chamber. The weighing seat is installed on the guide rod and hinged to the top end of the telescopic rod of the lifting cylinder, allowing it to reciprocate up and down along the guide rod as the telescopic rod of the lifting cylinder moves. The diameter of the filling sleeve is larger than the diameter of the feed sleeve. The filling sleeve is symmetrically equipped with bag clamping arms that match the shape of the sleeve body on both sides. Two synchronous clamping cylinders are symmetrically installed between the two bag clamping arms. The two synchronous clamping cylinders are symmetrically arranged on the other two sides of the filling sleeve. The filling sleeve is connected to the weighing base through a sleeve fixing frame. When the extension rod of the lifting cylinder extends, it can drive the filling sleeve to move vertically upward and fit onto the feeding sleeve. When the extension rod of the lifting cylinder retracts, it can drive the filling sleeve to move vertically downward and disengage from the feeding sleeve.
4. The open-bag vacuum chamber suction packaging machine according to claim 3, characterized in that, The weighing seat is provided with two sets of parallel clamping wheels, which are simultaneously clamped on the guide rod. The weighing seat between the two sets of clamping wheels is provided with a hinge joint that is connected to the telescopic rod of the lifting cylinder. The weighing seat is provided with a connecting plate on its inner side, which is fixedly connected to the sleeve fixing frame.
5. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, A screw feeder is installed inside the feed sleeve. One end of the screw feeder is connected to the powder feeding device, and the other end passes through the feed sleeve and enters the vacuum packaging chamber. The outlet of the screw feeder is lower than the outlet of the feed sleeve. A sealing ring is provided between the inlet of the feed sleeve and the screw feeder.
6. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, The sealed compartment door can be single-opening or multi-opening.
7. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, The sealed door includes a door frame, a door panel, a door hinge, a drive cylinder, and a push rod. The door frame is installed on the vacuum packaging chamber, and a sealing gasket is provided around the edge of the door frame. A door hinge is installed on one side of the door frame. The door panel is shaped to match the door frame and is rotatably mounted on the door frame via the door hinge. There are multiple drive cylinders installed in parallel on the outside of the vacuum packaging chamber. The extension rod of each drive cylinder is movably connected to the door panel via a push rod.
8. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, The air return port and the dust removal port are both located on one side close to the main frame. The air return port is installed on the upper part of the vacuum packaging chamber, and the dust removal port is installed on the lower part of the vacuum packaging chamber. The dust removal port is connected to a vacuum cleaner.
9. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, A vacuum tube interface is installed under the table surface of the workbench. There are two vacuum tube interfaces, namely a near-end interface and a far-end interface. The near-end interface is installed on the side of the main frame closer to the negative pressure interface, and the far-end interface is installed on the side of the main frame away from the negative pressure interface. The near-end interface and the negative pressure interface, as well as the near-end interface and the far-end interface, are connected by pipes. The far-end interface is connected to a negative pressure fan via a pipe.
10. The open-bag vacuum chamber suction packaging machine according to claim 1, characterized in that, The vacuum packaging chamber is also equipped with an observation window.