Vacuum packaging material shaping machine
By designing a vacuum packaging material shaping machine, and utilizing the multi-station processing of turntable and vacuum chamber components, the problem of material accumulation is solved, and the automatic and efficient shaping and flattening of materials is achieved, improving the aesthetics of packaging and the efficiency of packing.
Patent Information
- Application Number
- CN202520527857.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-25
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-25
AI Technical Summary
When packaging loose, small pieces of material, existing vacuum packaging equipment tends to cause the material to accumulate at the bottom of the bag, resulting in bulges at the bottom of the bag, which affects the appearance and is not conducive to subsequent boxing and packaging.
A vacuum packaging material shaping machine was designed, comprising a bag feeding component and a shaping component. Utilizing multiple stations on a turntable and a vacuum chamber assembly, the machine achieves automatic and efficient material shaping through vacuuming, vibration flattening, and degassing stations.
It effectively eliminates material accumulation, achieves flat laying of materials inside the packaging bag, and improves the aesthetics of the packaging and the efficiency of subsequent packing.
Smart Images
Figure CN223822211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a food packaging equipment, specifically a vacuum packaging material shaping machine for shaping materials that have already undergone vacuum packaging. Background Technology
[0002] After vacuum packaging materials using a pre-packing bag packaging machine, if the materials are loose, small pieces, such as peanuts or corn kernels, they tend to accumulate at the bottom of the vacuum-packed bag. This causes bulging at the bottom of the bag, which is both unsightly and detrimental to subsequent boxing and packaging. Although some technologies, such as horizontal pre-packing bag packaging machines, are currently available for vacuum packaging, the results are not ideal. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a vacuum packaging material shaping machine with a compact structure and high working efficiency, which is specifically designed for shaping vacuum packaging materials.
[0004] This utility model is implemented through the following technical solution:
[0005] A vacuum packaging material shaping machine is characterized by comprising a bag feeding component and a shaping component. The shaping component has a turntable that rotates in an indexing manner on a worktable during operation. The turntable is sequentially arranged along its circumference as a bag feeding station, a vacuuming station, a vibration flattening station, a degassing station, and a bag discharging station. Each station is equipped with a horizontal vacuum chamber assembly. Each vacuum chamber assembly has a chamber cover that can be opened upwards. An internal conveyor belt is horizontally laid inside the vacuum chamber of each vacuum chamber assembly. The internal conveyor belt is mounted on a vibration support. A pressure plate is provided above the internal conveyor belt. The pressure plate is connected to a flattening cylinder, which is fixedly installed on the chamber cover. At the bag feeding station and the bag discharging station, a conveyor belt drive component is provided on the outside of the internal conveyor belt to correspond to it. The output of the bag feeding component is directly opposite the vacuum chamber assembly of the bag feeding station.
[0006] The turntable has an even number of stations along the circumference, and the vacuum chamber components of adjacent stations are staggered in height.
[0007] The turntable has two layers, upper and lower, which are used for the installation of vacuum chamber components that are staggered.
[0008] The bag feeding component consists of a front conveyor assembly and a rear conveyor assembly. The front conveyor assembly includes a front support that can swing up and down at the rear end, and a front conveyor belt is installed on the front support. The rear conveyor assembly includes a rear support that can swing up and down at the front end, and an upper conveyor belt and a lower transmission belt are installed on the rear support. Material detection probes are provided above the upper conveyor belt and the lower transmission belt, respectively controlling the upper servo motor and the lower servo motor that drive the upper conveyor belt and the lower transmission belt to convey the bag.
[0009] The swing of the front and rear supports is synchronously driven by a linkage assembly, which includes a front pull rod, a rear pull rod, and a drive arm. The drive arm is connected to the output end of the first motor, the front end of the drive arm is connected to the front pull rod, the rear end of the drive arm is connected to the rear pull rod, the other end of the front pull rod is connected to the front support, and the other end of the rear pull rod is connected to the rear support.
[0010] The turntable has eight stations along its circumference: one bag loading station, two vacuuming stations, three vibration flattening stations, one venting station, and one bag unloading station.
[0011] The vacuum chamber of the vacuum chamber assembly is formed by the chamber cover sealing the surface of the turntable.
[0012] The vibration support is driven by a vibration cylinder, which is mounted on the turntable.
[0013] The conveyor belt drive includes a fixed frame and a movable frame. The movable frame is longitudinally movable on the fixed frame and is pushed by a front-push cylinder. The movable frame is equipped with a drive wheel, which is driven by a second motor. When the movable frame approaches the turntable, the drive wheel friction drives the conveyor belt in the vacuum chamber of the bag-loading station and the bag-unloading station to perform a conveying action.
[0014] The cavity cover is flip-connected to the turntable and pushed by a push rod. The upper end of the push rod is connected to the cavity cover, and the lower end is connected to the swing arm. The swing arm is oscillating and connected to the turntable. A roller is installed in the middle of the swing arm. The roller rolls on the working surface of the end face cam. The end face cam is fixedly installed on the worktable below the turntable.
[0015] The vacuum packaging material shaping machine using the above technical solution sends the material vacuum-packed by the bag packaging machine to the horizontally laid conveyor belt inside the vacuum chamber assembly at the bag-up station. The packaging bag lies horizontally, and as the turntable rotates, the chamber lid is closed. At the vacuum station, the vacuum chamber is evacuated, balancing the pressure inside and outside the vacuum-packed material, thus restoring the material to a free state. Next, at the vibration and flattening station, the conveyor belt inside the chamber vibrates at high frequency, while the pressing plate presses against the material under the constant pressure of the flattening cylinder. Since the packaging bag is horizontal at this time, under the action of high-frequency vibration, the material that was originally piled at the bottom of the packaging bag begins to move towards the bag opening. Under the continuous downward pressing action of the pressing plate, the material inside the bag is finally laid flat in a roughly equal thickness shape inside the packaging bag. Then, at the degassing station, the vacuum chamber is degassed to restore normal pressure, and the material packaging is restored to vacuum packaging. Finally, at the bag-out station, the flattened and shaped vacuum-packed material is sent out of the vacuum chamber, thus realizing the automatic and efficient shaping production of vacuum-packed materials. In addition, the staggered height of the vacuum chamber components at adjacent workstations makes the structure of the entire machine more compact. At the same time, the bag feeding component, which works in conjunction with the front conveyor belt, upper conveyor belt, and lower drive belt, ensures reliable bag feeding by the staggered height of the vacuum chamber components, thereby improving work efficiency. Attached Figure Description
[0016] The present invention includes the following figures:
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] Figure 2 This is a structural diagram of the bag feeding component.
[0019] Figure 3 This is a structural schematic diagram of a conveyor belt drive component.
[0020] Figure 4 This is a structural diagram of the shaping component.
[0021] Figure 5 This is a schematic diagram of the vacuum chamber assembly.
[0022] Figure 6 This is a schematic diagram of the internal structure of the vacuum chamber assembly. Detailed Implementation
[0023] like Figures 1-6As shown, the vacuum packaging material shaping machine of this utility model includes a bag feeding component A and a shaping component C. The shaping component C has a turntable 2. During operation, the turntable is driven by the main motor to rotate in an indexing manner on the worktable 1. The turntable 2 has eight stations arranged in sequence along the circumference: one bag feeding station, two vacuuming stations (one pre-vacuuming station with one vacuum pump in operation, and the other full vacuuming station with two vacuum pumps in operation), three vibration flattening stations (flattening and vacuuming at the same time), one venting station, and one bag discharging station. Each station is equipped with a horizontal vacuum chamber assembly. The vacuum chamber assemblies of adjacent stations are staggered vertically. The turntable is divided into upper and lower layers, which are used for the installation of the staggered vacuum chamber assemblies. Each vacuum chamber assembly has an upwardly movable chamber cover 3. The chamber cover 3 is flipped and connected to the turntable 2 and pushed by a push rod 4. The upper end of the push rod 4 is connected to the chamber cover 3, and the lower end is connected to the swing arm 5. The swing arm 5 is oscillating and connected to the turntable 2. A roller 6 is installed in the middle of the swing arm 5. The roller 6 rolls on the working surface of the end face cam 7. The end face cam 7 is fixedly installed on the worktable 1 below the turntable. The vacuum chamber of each vacuum chamber assembly is formed by sealing the chamber cover 3 on the surface of the turntable 2. An internal conveyor belt 9 is horizontally laid inside the vacuum chamber of each assembly. The internal conveyor belt 9 is mounted on a vibration support 10, which is driven by a vibration cylinder 11. The vibration cylinder 11 is mounted on the turntable 2. A pressing plate 12 is provided above the internal conveyor belt 9, and the pressing plate 12 is connected to a flattening cylinder 8, which is fixedly mounted on the chamber cover 3. At the bag loading and unloading stations, a conveyor belt drive component B is provided on the outer side of the internal conveyor belt 9, corresponding to it. The conveyor belt drive component B has two identical... The conveyor belt drive unit B includes a fixed frame 14 and a movable frame 16. The movable frame 16 is longitudinally movable on the fixed frame 14 and is pushed by a forward-pushing cylinder 15. A drive wheel 17 is installed on the movable frame 16. The drive wheel 17 is driven by a second motor 19 through a chain 18. There are two drive wheels 17, one upper and one lower, corresponding to the vacuum chamber assembly installed on the upper turntable and the other on the lower turntable, respectively. When the movable frame 16 approaches the turntable 2, the drive wheel 17 drives the conveyor belt 9 in the cavity to perform conveying action by contacting the outer conveyor roller 13 of the conveyor belt 9 in the cavity through friction.
[0024] The output of the bag feeding component A is directly opposite the vacuum chamber assembly of the bag feeding station. The bag feeding component A consists of a front conveyor assembly and a rear conveyor assembly. The front conveyor assembly includes a front support 21 with a rear end that can swing up and down. A front conveyor belt 20 is installed on the front support 21 and is controlled and driven by a front servo motor 22. The rear conveyor assembly includes a rear support 27 with a front end that can swing up and down. An upper conveyor belt 24 and a lower transmission belt 26 are installed on the rear support 27. A first material detection probe 23 is provided above the upper conveyor belt 24, which controls and drives the upper servo motor to carry the upper conveyor belt 24. A second material detection probe 25 is provided above the lower transmission belt 26, which controls and drives the lower conveyor belt 26 to carry the lower transmission belt 26. The swing of the front and rear supports is synchronously driven by a linkage assembly, which includes a front pull rod 30, a rear pull rod 28 and a drive arm 29. The drive arm 29 is connected to the output end of the first motor 31. The front end of the drive arm 29 is connected to the front pull rod 30, and the rear end of the drive arm 29 is connected to the rear pull rod 28. The other end of the front pull rod 30 is connected to the front support 21, and the other end of the rear pull rod 28 is connected to the rear support 27.
[0025] The vacuum packaging material shaping machine described above works as follows: Vacuum packaging material produced by the bag packaging machine falls onto the front conveyor belt, which then sends the material to the upper conveyor belt. The first material detection probe detects the material and stops the upper servo motor, leaving the material temporarily on the upper conveyor belt. At this point, the output end of the upper conveyor belt is aligned with the vacuum chamber assembly at the upper bag station (located on the upper turntable, with the chamber cover fully open). Then, the corresponding conveyor belt drive unit at the upper bag station begins to move, the movable frame approaches the turntable, and the drive wheel rubs against the outer conveyor roller of the inner conveyor belt. The conveyor belt inside the chamber is driven to move, and with the feeding of the servo motor, the material on the upper conveyor belt is sent to the inner conveyor belt of the upper bag station. The packaging bag is laid horizontally, and then, as the turntable rotates, the chamber lid is closed. At the pre-vacuum station, one vacuum pump is put into operation, and the vacuum inside the chamber can reach 80% of the rated value. Then, at the full vacuum station, two vacuum pumps are put into operation, and the vacuum inside the chamber reaches the rated value, so that the pressure inside and outside the vacuum-packed material is balanced, and the material inside the bag returns to a free state. Next, at the vibration flattening station, the vacuum inside the chamber is maintained, and the vibration motor... During operation, the conveyor belt inside the chamber vibrates at high frequency, while the pressing plate, under the constant pressure of the flattening cylinder, presses against the material. Since the packaging bag is horizontal at this time, the material that was originally piled up at the bottom of the packaging bag begins to move towards the bag opening under the action of high frequency vibration. With the continuous downward pressing action of the pressing plate, the material inside the bag is finally spread out into a flat shape of approximately equal thickness inside the packaging bag. Then, at the degassing station, the vacuum chamber is degassed and restored to normal pressure, and the material packaging is also restored to vacuum packaging. Finally, at the bag exit station, the chamber cover is opened again, and the conveyor belt drive corresponding to the bag exit station starts to move, and the movable frame approaches the turntable. The drive wheel, through friction with the outer conveyor rollers of the inner conveyor belt, drives the inner conveyor belt to perform a conveying action, thus sending the flattened and shaped vacuum-packed material on the inner conveyor belt out of the vacuum chamber. In the above process, the current conveyor belt sends the vacuum-packed material to the upper conveyor belt, then the front support swings down and the rear support swings up, and the output of the front conveyor belt quickly aligns with the input end of the lower conveyor belt. The material sent out by the front conveyor belt arrives at the lower conveyor belt for temporary storage, waiting for the output end of the lower conveyor belt to align with the vacuum chamber assembly of the upper bag station (located on the lower turntable). This cycle is repeated to achieve automatic and efficient shaping production of vacuum-packed materials.
Claims
1. A vacuum packaging material shaping machine, characterized in that: The device includes a bag feeding component and a shaping component. The shaping component has a turntable that rotates in an indexing manner on a worktable during operation. The turntable has a bag feeding station, a vacuuming station, a vibration flattening station, a venting station, and a bag discharging station arranged sequentially along its circumference. Each station is equipped with a horizontal vacuum chamber assembly, and each vacuum chamber assembly has a chamber cover that can be opened upwards. An internal conveyor belt is horizontally laid inside the vacuum chamber of each vacuum chamber assembly. The internal conveyor belt is mounted on a vibration support. A pressing plate is located above the internal conveyor belt and is connected to a flattening cylinder, which is fixedly installed on the chamber cover. At the bag feeding station and the bag discharging station, a conveyor belt drive is located on the outside of the internal conveyor belt, corresponding to it. The output of the bag feeding component is directly opposite the vacuum chamber assembly at the bag feeding station.
2. The vacuum packaging material shaping machine as described in claim 1, characterized in that: The turntable has an even number of stations along the circumference, and the vacuum chamber components of adjacent stations are staggered in height.
3. The vacuum packaging material shaping machine as described in claim 2, characterized in that: The turntable has two layers, upper and lower, which are used for the installation of vacuum chamber components that are staggered.
4. The vacuum packaging material shaping machine as described in claim 2, characterized in that: The bag feeding component consists of a front conveyor assembly and a rear conveyor assembly. The front conveyor assembly includes a front support that can swing up and down at the rear end, and a front conveyor belt is installed on the front support. The rear conveyor assembly includes a rear support that can swing up and down at the front end, and an upper conveyor belt and a lower transmission belt are installed on the rear support. Material detection probes are provided above the upper conveyor belt and the lower transmission belt, respectively controlling the upper servo motor and the lower servo motor that drive the upper conveyor belt and the lower transmission belt to convey the bag.
5. The vacuum packaging material shaping machine as described in claim 4, characterized in that: The swing of the front and rear supports is synchronously driven by a linkage assembly, which includes a front pull rod, a rear pull rod, and a drive arm. The drive arm is connected to the output end of the first motor, the front end of the drive arm is connected to the front pull rod, the rear end of the drive arm is connected to the rear pull rod, the other end of the front pull rod is connected to the front support, and the other end of the rear pull rod is connected to the rear support.
6. The vacuum packaging material shaping machine as described in claim 1, 2, 3, 4 or 5, characterized in that: The turntable has eight stations along its circumference: one bag loading station, two vacuuming stations, three vibration flattening stations, one venting station, and one bag unloading station.
7. The vacuum packaging material shaping machine as described in claim 1, characterized in that: The vacuum chamber of the vacuum chamber assembly is formed by the chamber cover sealing the surface of the turntable.
8. The vacuum packaging material shaping machine as described in claim 1, characterized in that: The vibration support is driven by a vibration cylinder, which is mounted on the turntable.
9. The vacuum packaging material shaping machine as described in claim 1, characterized in that: The conveyor belt drive includes a fixed frame and a movable frame. The movable frame is longitudinally movable on the fixed frame and is pushed by a front-push cylinder. The movable frame is equipped with a drive wheel, which is driven by a second motor. When the movable frame approaches the turntable, the drive wheel friction drives the conveyor belt in the vacuum chamber of the bag-loading station and the bag-unloading station to perform a conveying action.
10. The vacuum packaging material shaping machine as described in claim 1, characterized in that: The cavity cover is flip-connected to the turntable and pushed by a push rod. The upper end of the push rod is connected to the cavity cover, and the lower end is connected to the swing arm. The swing arm is oscillating and connected to the turntable. A roller is installed in the middle of the swing arm. The roller rolls on the working surface of the end face cam. The end face cam is fixedly installed on the worktable below the turntable.