A vertical packaging machine with detectable weight

Abstract

The utility model relates to product packaging technical field, concretely is a vertical packaging machine of weight detectable, including frame, be equipped with charging mechanism on the frame, be equipped with weight detection device below charging mechanism, weight detection device includes support, support fixed mounting is in the frame, be equipped with clamping mechanism on the support, be equipped with weighing sensor between clamping mechanism and support. Can solve the problem of not detecting the weight unqualified product 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 weight. Background Technology

[0002] Vertical packaging machines are widely used automated product packaging equipment. During the packaging process, the packaging film is unrolled and enters the forming unit via guide rollers. The film is formed into a cylindrical or other shaped bag by the forming unit. The side is sealed by the longitudinal sealing device, and the bottom of the bag is sealed by the transverse sealing device. The bag falls to a predetermined position, and the material falls into the formed bag through the metering device. The transverse sealing device heat-seals the top of the bag and cuts it by the cutting device to form an individual packaging bag.

[0003] Existing vertical packaging machines measure the weight of packaged products by manually extracting a sample from the machine's discharge port and then moving it to a weighing platform. However, this method results in a large accumulation of defective products by the time they are detected, necessitating repackaging and reprocessing. This wastes significant packaging materials, reduces production efficiency, and increases production costs. Utility Model Content

[0004] This invention provides a vertical packaging machine capable of detecting weight, which can solve the problem of failing to detect products with substandard weight 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 weight, including a frame, a feeding mechanism on the frame, a weight detection device below the feeding mechanism, the weight detection device including a bracket, the bracket being fixedly installed on the frame, a clamping mechanism on the bracket, and a weighing sensor between the clamping mechanism and the bracket.

[0006] Beneficial effects: The vertical packaging machine integrates a weight detection device within its frame, which uses a weighing sensor to accurately measure the weight of the packaging material in real time. During the packaging process, if the material weight exceeds the preset range, the vertical packaging machine can immediately stop loading, preventing the continuous production of defective products, improving product quality, effectively reducing scrap rates and rework costs, increasing production efficiency, and lowering production costs.

[0007] Furthermore, the clamping mechanism includes a base plate, a through hole in the center of the base plate, support plates symmetrically arranged on both sides of the through hole, a driving device on the outer wall of the support plate, a driving rod of the driving device passing through the support plate and fixedly connected to the driving plate, and a pressure plate on the inner wall of the driving plate.

[0008] 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.

[0009] Furthermore, a sealing gasket is provided on the inner wall of the pressure plate of the clamping mechanism.

[0010] Beneficial effect: During vacuuming, the sealing gasket can be squeezed and deformed to fill the gap between the pressure plate and the vacuum tube, forming a sealing barrier.

[0011] Furthermore, the drive plate of the clamping mechanism is provided with a guide hole, and the drive plate slides with the guide rod through the guide hole, and the guide rod is fixedly installed on the support plate.

[0012] Beneficial effects: Ensures that the pressure plate reciprocates along the guide rod, avoiding problems such as deviation and swaying.

[0013] 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, and a weight detection device and a second transverse sealing device are provided below the cutting device.

[0014] Beneficial effects: The packaging film is processed into a packaging bag body through the forming device, the longitudinal sealing device and the first transverse sealing device. The material is loaded into the packaging bag body through the filling mechanism. The cutting device is used to cut the packaging bag body. The weight detection device and the second transverse sealing device are set below the cutting device. This can effectively avoid the packaging bag body and the packaging film from being connected and affecting the weighing of the material, ensure the accuracy of weight detection, and ensure that the packaging bag body is sealed after weighing.

[0015] 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 of the weight detection device.

[0016] Beneficial effects: The vacuum tube's suction port extends to the bottom of the clamping mechanism. The vacuum tube works in conjunction with the clamping mechanism's pressure plate and sealing gasket to ensure the quality of vacuuming the packaging bag and prevent residual air from affecting product quality.

[0017] Furthermore, the frame is equipped with a discharge guide plate.

[0018] Beneficial effects: The discharge guide plate provides a clear discharge path for packaged products, ensuring consistent discharge direction. Attached Figure Description

[0019] Figure 1 This is a front view of Embodiment 1 of the vertical packaging machine capable of detecting weight according to this utility model.

[0020] Figure 2 This is an isometric view of the clamping mechanism of the weight detection device in Embodiment 1 of the vertical packaging machine capable of detecting weight according to this utility model.

[0021] Figure 3 This is a cross-sectional view of the weight detection device in operation according to Embodiment 1 of the vertical packaging machine capable of detecting weight of this utility model.

[0022] Figure 4 This is a front view of Embodiment 2 of the vertical packaging machine capable of detecting weight according to this utility model.

[0023] Figure 5 This is an axonometric view of the second horizontal sealing device in Embodiment 3 of the vertical packaging machine capable of detecting weight according to this utility model. Detailed Implementation

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

[0025] The markings in the accompanying drawings include: frame 1, loading mechanism 2, hopper 201, loading pipe 202, forming device 3, longitudinal sealing device 4, film pulling device 5, first transverse sealing device 6, cutting device 7, weight detection device 8, clamping mechanism 810, base plate 811, through hole 812, support plate 813, driving device 814, driving plate 815, pressure plate 816, sealing gasket 817, guide rod 818, weighing sensor 820, bracket 830, second transverse sealing device 9, support plate 901, support frame 902, driving cylinder 903, driving frame 904, heat sealing assembly 905, guide rod 906, discharge guide plate 10, packaging bag body 11, material 12.

[0026] Example 1

[0027] like Figures 1 to 3As shown, a vertical packaging machine capable of detecting weight 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 first transverse sealing device 6, a cutting device 7, a second transverse sealing device 9, and a weight detection device 8. 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. The sealing side of the forming device 3 is equipped with a longitudinal sealing device 4. Film pulling devices 5 are provided on both sides of the feeding pipe 202. The first transverse sealing device 6 is located below the feeding pipe 202. The cutting device 7 is located below the first transverse sealing device 6. The second transverse sealing device 9 is located below the cutting device 7. The weight detection device 8 is located below the second transverse sealing device 9. A discharge guide plate 10 is located below the weight detection device 8. One end of the discharge guide plate 10 is fixed to the frame 1, and the other end extends diagonally downwards to the outside of the frame 1. The structures of the feeding mechanism 2, longitudinal sealing device 4, film pulling device 5, cutting device 7, first transverse sealing device 6, and second transverse sealing device 9 can all adopt existing technologies of vertical packaging machines.

[0028] The weight detection device 8 includes a bracket 830, which is fixedly mounted on the frame 1 by bolts. A clamping mechanism 810 is provided on the bracket 830, and a weighing sensor 820 is provided between the clamping mechanism 810 and the bracket 830. The clamping mechanism 810 includes a base plate 811, with a through hole 812 in the middle for the packaging material 12 to pass through. Support plates 813 are symmetrically arranged on both sides of the through hole 812 on the upper surface of the base plate 811. A driving device 814 is provided on the outer wall of the support plate 813. The driving device 814 can be a motor or a cylinder. The driving rod of the driving device 814 passes through the support plate 813 and is fixedly connected to the driving plate 815. A pressure plate 816 is provided on the inner wall of the driving plate 815 (i.e., the opposite sidewalls of the two driving plates 815). A sealing gasket 817 is provided on the inner wall of the pressure plate 816 (i.e., the opposite sidewalls of the two pressure plates 816). The drive plate 815 has symmetrical guide holes at both ends, and a pressure plate 816 is provided between the two guide holes. The drive plate 815 slides with the guide rod 818 through the guide holes. The two ends of the guide rod 818 are respectively fixed to the inner sidewalls of the two support plates 813 (i.e., the opposite sidewalls of the two support plates 813) by bolts. Both the base plate 811 and the bracket 830 can adopt a U-shaped structure. The bracket 830 has clearance holes corresponding to the through hole 812. The base plate 811 is located above the bracket 830. The base plate 811 is mounted on the bracket 830 through a weighing sensor 820. A weighing sensor 820 is provided at each of the four corners of the lower end face of the base plate 811.

[0029] The feeding mechanism 2, longitudinal sealing device, film pulling device 5, cutting device 7, first horizontal sealing device 6, second horizontal sealing device 9, and weight detection device 8 of the vertical packaging machine are respectively connected to the controller. The controller can detect the weight of the material through the weighing sensor 820. The controller is also connected to the audible and visual alarm.

[0030] The processing method is as follows:

[0031] 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 a packaging bag 11. The packaging bag 11 continues to move downward until the top sealing position of the packaging bag 11 is at the second transverse sealing device 9. At the same time, the quantitative material 12 in the filling hopper 201 falls into the packaging bag 11, which has been bottom-sealed, along the filling pipe 202. The clamping mechanism 810 of the weight detection device 8 clamps the top of the packaging bag 11 through the drive plates 815 on both sides, and the cutting device 7 cuts the packaging bag 11, separating the packaging bag 11 containing the material 12 from the packaging film. The packaging bag 11 containing the material 12 is then suspended on the clamping mechanism 810 of the weight detection device 8; at the same time, the first transverse sealing device 6 performs bottom sealing to form a new packaging bag. The controller collects the weight information of the packaging bag 11 and the material 12 through the weighing sensor 820 of the weight detection device 8. Based on the set value set in the controller, the controller determines whether the weight of the material 12 in the packaging bag 11 meets the requirements. When the weight of the material 12 is within the set value range, the controller controls the second horizontal sealing device 9 to seal the top of the packaging bag 11 to complete the packaging. The pressure plate 816 of the clamping mechanism 810 separates, and the packaged material 12 is discharged through the discharge guide plate 10. When the weight of the material 12 is outside the set value range, 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.

[0032] Example 2

[0033] like Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that a first horizontal sealing device 6 is provided below the loading mechanism 2, a cutting device 7 is provided below the first horizontal sealing device 6, a weight detection device 8 is provided below the cutting device 7, and a second horizontal sealing device 9 is provided below the clamping mechanism 810 of the weight detection device 8. A vacuuming device is provided on the frame 1, which includes a vacuuming tube and a vacuum pump. One end of the vacuuming tube is located inside the loading tube 202 of the loading mechanism 2, and the other end of the vacuuming tube is connected to the vacuum pump. A lifting device is provided on the vacuuming tube to drive the vacuuming tube to move up and down. The lifting device can be driven by a cylinder. The vacuuming device of the vertical packaging machine is existing technology and will not be described in detail. The air extraction port of the vacuuming tube of the vacuuming device can extend to below the clamping mechanism 810 of the weight detection device 8.

[0034] During vacuuming, the vacuum tube of the vacuuming device extends below the clamping mechanism 810 of the weight detection device 8. After the pressure plates 816 on both sides of the clamping mechanism 810 clamp the vacuum tube, the sealing gaskets 817 on both sides are clamped and adhered to the outer wall of the vacuum tube. The vacuum pump operates to extract air from the packaging bag 11. After vacuuming is completed, the vacuum tube moves upward and retracts above the first horizontal sealing device 6. The cutting device 7 cuts the packaging bag 11, separating the packaging bag 11 containing the material 12 from the packaging film. The packaging bag 11 containing the material 12 is suspended on the clamping mechanism 810 of the weight detection device 8. The clamping structure achieves a temporary seal on the top of the packaging bag 11. The controller collects the weight information of the material 12 through the weighing sensor 820 of the weight detection device 8, detects the weight of the material 12, and seals the top of the packaging bag 11 if the detection is qualified; otherwise, an alarm is issued to remind the staff.

[0035] Example 3

[0036] like Figure 5 As shown, the difference between this embodiment and Embodiment 1 is that the second horizontal sealing device includes two symmetrically arranged support plates 901. The support plates 901 are fixedly installed on the frame 1 by bolts. Two support frames 902 are provided between the two support plates 901. A drive cylinder 903 is provided on the outer wall of each of the two support frames 902. The drive rod of the drive cylinder 903 passes through the support frame 902 and is fixedly connected to the drive frame 904. A heat sealing assembly 905 is provided on the inner wall of the drive frame 904. Guide holes are symmetrically provided at both ends of the drive frame 904. The heat sealing assembly 905 is provided between the two guide holes. The drive frame 904 slides with the guide rod 906 through the guide holes. The two ends of the guide rod 906 are respectively fixedly installed on the inner walls of the two support frames 902. The first horizontal sealing device 6 can adopt the structure of the second horizontal sealing device 9. The cutting device 7 can adopt the structure of the second horizontal sealing device 9. The difference from the second horizontal sealing device is that the heat sealing assembly 905 on the opposite inner walls of the two drive frames 904 is replaced with a cutting assembly.

[0037] 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 weight, comprising a frame, a loading mechanism is arranged on the frame, characterized in that, The weight detection device is arranged below the charging mechanism, and comprises a support fixedly installed on the frame, and a clamping mechanism arranged on the support and provided with a weighing sensor.

2. A detectably weighted vertical packaging machine according to claim 1, characterized in that: The clamping mechanism comprises a base plate provided with a through hole in the middle, and support plates symmetrically arranged on both sides of the through hole, and a driving device arranged on the outer side wall of the support plate, and a driving rod of the driving device fixedly connected with a driving plate through the support plate, and a pressing plate arranged on the inner side wall of the driving plate.

3. A detectably weighted vertical packaging machine according to claim 2, characterized in that: The inner side wall of the pressing plate of the clamping mechanism is provided with a sealing gasket.

4. A detectably weighted vertical packaging machine according to claim 2, characterized in that: The driving plate is provided with a guide hole, and the driving plate is slidably connected with a guide rod through the guide hole, and the guide rod is fixedly installed on the support plate.

5. The detectably weighted vertical packaging machine of claim 1, wherein: The upper part of the charging mechanism is provided with a former, the sealing side of the former is provided with a longitudinal sealing device, the lower part of the charging mechanism is provided with a first transverse sealing device, the lower part of the first transverse sealing device is provided with a cutting device, the lower part of the cutting device is provided with a weight detection device and a second transverse sealing device.

6. A detectably weighted vertical packaging machine according to claim 1, characterized in that: The frame is provided with a vacuumizing device, and the air outlet of the vacuumizing pipe of the vacuumizing device can extend to the lower part of the clamping mechanism of the weight detection device.

7. A detectably weighted vertical packaging machine according to claim 1, characterized in that: The frame is provided with a discharging guide plate.

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