A vertical packaging machine capable of detecting a vacuum state

Abstract

The utility model relates to product packaging technical field, concretely is a vertical packaging machine of vacuum state can be detected, including frame, be equipped with charging mechanism on the frame, its characterized in that, the annular light source and camera lens are equipped with below charging mechanism, the annular light source is connected with controller, the camera lens is connected with controller through image acquisition device, the controller is connected with image feature memory. Can solve the problem of not being able to detect the unqualified product of vacuum state in time, reduce production efficiency, increase production cost.

Description

Technical Field

[0001] This utility model relates to the field of product packaging technology, specifically a vertical packaging machine capable of detecting vacuum conditions. Background Technology

[0002] Vertical packaging machines are automated product packaging equipment used to automatically fill and seal products into bags. They are commonly used in the packaging processes of industries such as food, pharmaceuticals, and chemicals. Vertical packaging machines can complete the entire process from bag formation and material filling to sealing in a vertical direction. During the packaging process, packaging material (usually rolls of plastic film) is mounted on the machine's feeding device and guided into the forming unit by guide rollers. As the film passes through the forming unit, it is shaped into a cylindrical or other shaped bag. The bag is heated and pressed by a longitudinal sealing device to form a longitudinal sealing edge. The bag is then sealed at the bottom by a transverse sealing device. The bag falls to a predetermined position, and material is fed into the bag through a metering device. A sealing clamp temporarily seals the top of the bag, a vacuum device removes the air from the bag, and the transverse sealing device seals the top of the film. Finally, a cutting device separates the bags into individual packaging units.

[0003] Existing vertical packaging machines typically detect the vacuum state of packaged products by visual inspection or pressure testing after the products have been individually sealed. However, this method has a significant time lag. By the time defective products are detected, the vertical packaging machine has already produced a large number of defective products, requiring the packaging to be removed and the process repeated, wasting a lot of packaging materials, reducing production efficiency, and increasing production costs. Utility Model Content

[0004] This invention provides a vertical packaging machine capable of detecting vacuum conditions, which can solve the problem of failing to detect substandard vacuum products in a timely manner, thus reducing production efficiency and increasing production costs.

[0005] This application provides the following technical solution: A vertical packaging machine capable of detecting vacuum status, comprising a frame, wherein a loading mechanism is provided on the frame, characterized in that a ring light source and a lens are provided below the loading mechanism, the ring light source is connected to a controller, the lens is connected to the controller through an image acquisition device, and the controller is connected to an image feature memory.

[0006] Beneficial effects: By uniformly illuminating the packaging bag with a ring light source, the image captured by the lens is transmitted to the controller via an image acquisition device. By comparing the image with a standard image in the image feature memory, the vacuum state of the packaging bag can be accurately identified. During the packaging process, if the vacuum state of the packaging bag is not up to standard, the vertical packaging machine can immediately stop loading, preventing the continuous production of defective products, effectively reducing scrap rates and rework costs, improving production efficiency, and lowering production costs.

[0007] Furthermore, the feeding mechanism is provided with a forming device on its upper part, a longitudinal sealing device is provided on the sealing side of the forming device, a first transverse sealing device is provided below the feeding mechanism, a cutting device is provided below the first transverse sealing device, a clamping mechanism is provided below the cutting device, a second transverse sealing device is provided below the clamping mechanism, and a lens and a ring light source are provided below the second transverse sealing device.

[0008] Furthermore, the frame is equipped with a vacuum pumping device, and the vacuum pumping port of the vacuum pumping device can extend to the bottom of the clamping mechanism.

[0009] Beneficial effects: The packaging film is processed into packaging bags through the forming device, longitudinal sealing device, and first transverse sealing device. The material is loaded into the packaging bag by the filling mechanism. The cutting device is used to cut the packaging bag. The clamping mechanism works with the vacuum device to vacuum the packaging bag. The vacuum status of the packaging bag is detected by the lens and ring light source. The qualified packaging bag is sealed by the second transverse sealing device. This ensures timely detection of unqualified products, avoids a large number of rework of packaged products, and improves production efficiency.

[0010] Furthermore, the clamping mechanism includes a base plate, which is mounted on a frame via a first bracket. The base plate has a through hole in the middle, and support plates are symmetrically arranged on both sides of the through hole. A driving device is provided on the outer wall of the support plate, and the driving rod of the driving device passes through the support plate and is fixedly connected to the driving plate. A pressure plate is provided on the inner wall of the driving plate, and a sealing gasket is provided on the inner wall of the pressure plate.

[0011] Beneficial effects: The support plate, drive device, and drive plate are all symmetrically distributed around the through hole, ensuring that the clamping force is evenly applied to both sides of the object, avoiding displacement or deformation caused by unilateral force. The synchronous operation of the drive devices on both sides enables stable clamping of the object.

[0012] Furthermore, a weighing sensor is provided between the base plate of the clamping mechanism and the first support, and the weighing sensor is connected to the controller.

[0013] Beneficial effects: The weighing sensor can measure the weight of the packaging material in real time and accurately. During the packaging process, when the weight of the material exceeds the preset range, the vertical packaging machine can immediately stop loading, avoiding continuous production of defective products, improving product quality, effectively reducing scrap rate and rework costs, increasing production efficiency, and reducing production costs.

[0014] Furthermore, two pressure-applying devices are symmetrically arranged on the frame. The pressure-applying devices are mounted on the frame via a second bracket. Each pressure-applying device includes a driving device, which is fixedly mounted on the second bracket. A pressure plate is provided on the driving rod of the driving device.

[0015] Furthermore, a pressure sensor is provided on the pressure plate of the pressure application device, and the pressure sensor is connected to the controller.

[0016] Beneficial effects: The pressure sensor collects the actual pressure value of the pressure plate on the packaging bag in real time and transmits it to the controller for comparison with the preset pressure threshold, forming a closed-loop control. It can intelligently monitor packaging abnormalities and issue early warnings for defective products. If the packaging bag is underfilled (e.g., empty), the pressure sensor will capture the abnormal pressure curve during pressure application, enabling timely detection of packaging abnormalities and reducing the defect rate. The symmetrically arranged pressure plates apply uniform pressure to the packaging bag from both sides. During the vacuuming process, the packaging bag is compressed, making it flat and square. This facilitates the capture of images through a lens to detect the vacuum state of the packaging bag. Attached Figure Description

[0017] Figure 1 This is a front view of Embodiment 1 of the vertical packaging machine capable of detecting vacuum status according to this utility model.

[0018] Figure 2 This is a partial side view of a first embodiment of the vertical packaging machine capable of detecting vacuum status according to this utility model.

[0019] Figure 3 This is an isometric view of the clamping mechanism of Embodiment 1 of the vertical packaging machine capable of detecting vacuum status of this utility model.

[0020] Figure 4 This is a cross-sectional view of the weighing sensor detecting weight in Embodiment 2 of the vertical packaging machine capable of detecting vacuum state according to this utility model.

[0021] Figure 5 This is a front view of Embodiment 3 of the vertical packaging machine capable of detecting vacuum status according to this utility model.

[0022] Figure 6 This is a partial cross-sectional view of Embodiment 3 of the vertical packaging machine capable of detecting vacuum status according to this utility model.

[0023] The markings in the accompanying drawings include: frame 1, loading mechanism 2, loading hopper 201, loading tube 202, forming device 3, longitudinal sealing device 4, film pulling device 5, first transverse sealing device 6, cutting device 7, clamping mechanism 8, substrate 801, through hole 802, support plate 803, driving device 804, driving plate 805, pressure plate 806, sealing gasket 807, guide rod 808, second transverse sealing device 9, ring light source 10, lens 11, support frame 12, vacuum tube 13, first bracket 14, weighing sensor 15, pressure device 16, driving unit 1601, pressure plate 1602, second bracket 17, packaging bag body 18, material 19. Detailed Implementation

[0024] The following detailed description illustrates the specific implementation method:

[0025] Example 1

[0026] like Figures 1 to 3 As shown, a vertical packaging machine capable of detecting vacuum status includes a frame 1. The frame 1 is equipped with a feeding mechanism 2, a longitudinal sealing device 4, a film pulling device 5, a cutting device 7, a first transverse sealing device 6, a second transverse sealing device 9, and a vacuuming device. The structures of the feeding mechanism 2, the longitudinal sealing device 4, the film pulling device 5, the cutting device 7, the transverse sealing device, and the vacuuming device can all adopt existing technologies for vertical packaging machines. The feeding mechanism 2 includes a feeding hopper 201 located above and a feeding pipe 202 located below. A valve is provided between the feeding hopper 201 and the feeding pipe 202. A forming device 3 is provided on the feeding pipe 202. A longitudinal sealing device 4 is provided on the sealing side of the forming device 3. Film pulling devices 5 are provided on both sides of the feeding pipe 202. A first transverse sealing device 6 is provided below the feeding pipe 202. A cutting device 7 is provided below the first transverse sealing device 6. A clamping mechanism 8 is provided below the cutting device 7. A second transverse sealing device 9 is provided below the clamping mechanism 8. A ring light source 10 and a lens 11 are provided below the second transverse sealing device 9. The ring light source 10 and lens 11 are fixed to one side of the frame 1 by a support frame 12. The lens 11 is located on the central axis of the ring light source 10, and the ring light source 10 is closer to the packaging bag 18 and material 19 to be tested than the lens 11. The vacuuming device includes a vacuum tube 13 and a vacuum pump. One end of the vacuum tube 13 is located in the loading tube 202 of the loading mechanism 2, and the other end of the vacuum tube 13 is connected to the vacuum pump. The vacuum tube 13 is equipped with a lifting device that drives the vacuum tube 13 to move up and down. The lifting device can be driven by a cylinder. The air extraction port of the vacuum tube 13 of the vacuuming device can extend to below the clamping mechanism 8.

[0027] The clamping mechanism 8 includes a base plate 801, which is mounted on the frame 1 via a first bracket 14. A through hole 802 is provided in the middle of the base plate 801, through which the packaging material 19 passes. Support plates 803 are symmetrically arranged on both sides of the through hole 802. A driving device 804 is provided on the outer wall of the support plate 803. The driving device 804 can be a motor or a cylinder. The driving rod of the driving device 804 passes through the support plate 803 and is fixedly connected to the driving plate 805. A pressure plate 806 is provided on the inner wall of the driving plate 805 (i.e., the opposite side walls of the two driving plates 805). A sealing gasket 807 is provided on the inner wall of the pressure plate 806 (i.e., the opposite side walls of the two pressure plates 806). The drive plate 805 has guide holes symmetrically arranged at both ends, and a pressure plate 806 is arranged between the two guide holes. The drive plate 805 slides with the guide rod 808 through the guide holes. The two ends of the guide rod 808 are respectively fixed to the inner side wall of the two side support plates 803 (i.e. the opposite side walls of the two support plates 803) by bolts.

[0028] The vertical packaging machine capable of detecting vacuum status has a feeding mechanism 2, a longitudinal sealing device 4, a film pulling device 5, a cutting device 7, a first transverse sealing device 6, a second transverse sealing device 9, a clamping mechanism 8, and a ring light source 10, all of which are connected to the controller. The lens 11 is connected to the controller via an image acquisition device. The controller is connected to an image feature memory and an audible and visual alarm.

[0029] The processing method is as follows:

[0030] During material packaging, the packaging film moves downward under the action of the drive roller and the film pulling device 5, undergoes initial shaping by the forming device 3, is longitudinally sealed on the sides by the longitudinal sealing device, and is bottom-sealed by the first transverse sealing device 6 to form the packaging bag 18. The packaging bag 18 continues to move downward until the top sealing position of the packaging bag 18 is at the second transverse sealing device 9. At the same time, the quantitative material 19 in the filling hopper 201 falls into the packaging bag 18, which has been bottom-sealed, along the filling pipe 202. The air extraction port of the vacuum tube 13 of the vacuum device extends to the bottom of the clamping mechanism 8 of the weight detection device. The pressure plates 806 on both sides of the clamping mechanism 8 clamp the top of the packaging bag 18, and the sealing gaskets 807 on both sides are clamped and adhered to the outer wall of the vacuum tube 13. The vacuum pump works to extract the air from the packaging bag 18. After vacuuming is completed, the controller controls the lens 11 to capture images of the packaging bag 18. During image acquisition, the controller adjusts the brightness of the ring light source 10 according to the image clarity, and transmits the captured image to the image acquisition device. The image features are processed and compared with the standard graphic features stored in the image feature memory to determine whether the vacuum state of the packaging bag 18 of the material 19 meets the requirements. When the vacuum state meets the requirements, the vacuum tube 13 moves upward and retracts above the first horizontal sealing device 6. The cutting device 7 cuts the packaging bag 18, separating the packaging bag 18 containing the material 19 from the packaging film. At the same time, the first horizontal sealing device 6 seals the bottom to form a new packaging bag 18, and the second horizontal sealing device 9 seals the top of the packaging bag 18 to complete the material packaging. The pressure plate 806 of the clamping mechanism 8 separates, and the packaged material 19 is discharged through the discharge guide plate. When the vacuum state does not meet the requirements, the controller pauses the material packaging operation. The controller emits a buzzer and flashing light through the audible and visual alarm, and sends an alarm signal to the mobile terminal to remind the staff to handle the situation in time.

[0031] Example 2

[0032] like Figure 4As shown, the difference between this embodiment and Embodiment 1 is that a weighing sensor 15 is provided between the base plate 801 of the clamping mechanism 8 and the first support 14, and the weighing sensor 15 is connected to the controller. Both the base plate 801 and the support can adopt a U-shaped structure, and the support is provided with clearance holes corresponding to the through hole 802. The base plate 801 is located above the support, and the base plate 801 is mounted on the support through the weighing sensor 15. Weighing sensors 15 are provided at the four corners of the lower end face of the base plate 801. When packaging materials, when the vacuum state of the packaging bag 18 and the material 19 meets the requirements, the cutting device 7 cuts the packaging bag 18, so that the packaging bag 18 containing the material 19 is separated from the packaging film, and the packaging bag 18 containing the material 19 is suspended on the clamping mechanism 8 of the weight detection device. The controller collects the weight information of the packaging bag 18 and the material 19 through the weighing sensor 15, and the controller determines whether the weight of the material 19 in the packaging bag 18 meets the requirements according to the set value set in the controller. When the weight of material 19 is within the set value range, the second horizontal sealing device 9 seals the top of the packaging bag 18 to complete the material packaging. The pressure plate 806 of the clamping mechanism 8 separates, and the packaged material 19 is discharged through the discharge guide plate. When the weight of material 19 is outside the set value range, the controller pauses the material packaging operation. The controller emits a buzzer and flashing light through the sound and light alarm, and at the same time sends the alarm signal to the mobile terminal to remind the staff to deal with it in time.

[0033] Example 3

[0034] like Figures 5 to 6 As shown, the difference between this embodiment and Embodiment 1 is that two pressure applying devices 16 are symmetrically arranged on the frame 1. The pressure applying devices 16 are mounted on the frame 1 via a second bracket 17. Each pressure applying device 16 includes a drive unit 1601, which is fixedly mounted on the second bracket 17. The drive unit can be a motor or a drive cylinder. A pressure plate 1602 is provided on the drive rod of the drive unit 1601. The size and shape of the pressure plate 1602 can be adjusted according to actual production needs. Multiple evenly distributed pressure sensors are provided on the pressure plate 1602 of the pressure applying device 16, located on the opposite sidewalls of the two pressure plates 1602. The pressure applying devices 16 and the pressure sensors are respectively connected to a controller. When packaging materials, the pressure plate 1602 of the pressure device 16 is working while the packaging bag 18 is being vacuumed. When pressure is applied to the material, the material is more even, which makes it easier for the controller to judge the vacuum status of the packaging bag 18 and the material 19 through the image captured by the lens. The controller collects pressure information in real time through the pressure sensor and further judges whether there is any missing material based on the pressure threshold set in the controller.

[0035] The above are merely embodiments of this utility model, and the utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A vertical packaging machine capable of detecting a vacuum state, comprising a frame, a loading mechanism is arranged on the frame, characterized in that, The feeding mechanism is equipped with a ring light source and a lens below it. The ring light source is connected to the controller, the lens is connected to the controller through an image acquisition device, and the controller is connected to an image feature memory.

2. A vertical packaging machine with detectable vacuum conditions according to claim 1, characterized in that: The feeding mechanism is equipped with a forming device on its upper part, a longitudinal sealing device on the sealing side of the forming device, a first transverse sealing device below the feeding mechanism, a cutting device below the first transverse sealing device, a clamping mechanism below the cutting device, a second transverse sealing device below the clamping mechanism, and a lens and a ring light source below the second transverse sealing device.

3. A vertical packaging machine with detectable vacuum conditions according to claim 2, characterized in that: The frame is equipped with a vacuum pumping device, and the vacuum pumping port of the vacuum pumping device can extend to the bottom of the clamping mechanism.

4. A vertical packaging machine with detectable vacuum conditions according to claim 2, characterized in that: The clamping mechanism includes a base plate, which is mounted on a frame via a first bracket. The base plate has a through hole in the middle, and support plates are symmetrically arranged on both sides of the through hole. A driving device is provided on the outer wall of the support plate, and the driving rod of the driving device passes through the support plate and is fixedly connected to the driving plate. A pressure plate is provided on the inner wall of the driving plate, and a sealing gasket is provided on the inner wall of the pressure plate.

5. A vertical packaging machine with detectable vacuum conditions according to claim 4, characterized in that: A weighing sensor is provided between the base plate of the clamping mechanism and the first support, and the weighing sensor is connected to the controller.

6. The vertical packaging machine with detectable vacuum condition of claim 1, wherein: Two pressure-applying devices are symmetrically arranged on the frame. The pressure-applying devices are mounted on the frame via a second bracket. Each pressure-applying device includes a driving device, which is fixedly mounted on the second bracket. A pressure plate is provided on the driving rod of the driving device.

7. A vertical packaging machine with detectable vacuum conditions according to claim 6, characterized in that: The pressure plate of the pressure application device is equipped with a pressure sensor, which is connected to the controller.

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