Product pushing mechanism of packaging machine
By designing the molded insert plate in the packaging machine and setting it above the push mold, the problem of bag skewed when pushing soft products by the existing packaging machine is solved, and the uniformity of the packaging bag sealing line and the packaging qualification are achieved.
Patent Information
- Application Number
- CN202421593544.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-08
AI Technical Summary
Existing packaging machines can easily cause the bag to be skewed when pushing soft products, and uneven sealing lines lead to unqualified packaging.
A packaging machine product push device is designed, including a cylinder, a guide rail slide mechanism, a connecting plate, a molded insert plate and a bag bulge. The molded insert plate is set above the push mold. When pushing, the bag is stretched from the inside to prevent the bag from skewed.
Effectively prevent the bag from skewing, ensure uniform sealing line, and meet the requirements of qualified packaging.
Smart Images
Figure CN222921869U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of packaging equipment, and specifically relates to a product pushing mechanism of a packaging machine. Background Art
[0002] The existing packaging machine uses the method of die pushing and suction forming to complete sealing and forming. First, the bag is expanded by a bag expanding device, and then the product is pushed into the bag by a pushing die to complete sealing. In the case of relatively soft products, the product is squeezed during the pushing process, and the amount of extrusion each time is different. After the product enters the bag, the bag is unevenly stressed and will be skewed. As Figure 4 shown, it will cause the sealing line 6-1 of the bag 6 to be skewed (H>h), and the lengths of the finished packages are different and do not meet the requirements. Summary of the Invention
[0003] The utility model aims to overcome the deficiencies of the prior art and provides a product pushing mechanism of a packaging machine.
[0004] To achieve the above object, a product pushing device of a packaging machine is designed, which includes a cylinder, a guide rail slider mechanism, a connecting plate, a forming plug board and a bag expanding device. The slider of the guide rail slider mechanism is connected to the driving device and is installed with a cylinder and a push rod. The cylinder is connected to the forming plug board through the connecting plate. The push rod is connected to the pushing die. The forming plug board is arranged above the pushing die. There is an inlet on the front side of the bag expanding device, and the bag is expanded at the rear side of the bag expanding device. The pushing die is used to push the product from the bag expanding device into the bag.
[0005] A servo motor is arranged on one side of the guide rail slider mechanism, and the servo motor drives the slider of the guide rail slider mechanism to move through a synchronous belt.
[0006] A lifting plate for lifting the product is arranged outside the inlet of the bag expanding device.
[0007] Air holes are arranged on the side surface of the pushing die.
[0008] Compared with the prior art, by setting the forming plug board, when the pushing die pushes the product into the bag, the upper part of the bag is expanded from the inside, which can effectively prevent the bag from being skewed, resulting in the skewing of the sealing line, and making the sealing of the packaging bag meet the requirements. Brief Description of the Drawings
[0009] Figure 1 It is a schematic diagram of the present utility model.
[0010] Figure 2 It is a schematic diagram of the bag expanding device.
[0011] Figure 3 It is a schematic diagram of a qualified packaging bag.
[0012] Figure 4 It is a schematic diagram of an unqualified packaging bag.
[0013] See Figures 1-4 Figures 1-4 , where 1 is a cylinder, 2 is a guide rail slider mechanism, 3 is a connecting plate, 4 is a forming plug board, 5 is a product, 6 is a bag, 6-1 is a sealing line, 7 is a push rod, 8 is a servo motor, 9 is a bag expanding device, 10 is a lifting plate, 11 is a synchronous belt, 12 is a pushing die, and 12-1 is an air hole. Detailed implementation manners
[0014] The following further describes the present utility model with reference to the accompanying drawings.
[0015] As Figures 1-2 shown, the slider of the guide rail slider mechanism 2 is connected to the driving device and is equipped with a cylinder 1 and a push rod 7. The cylinder 1 is connected to the forming plug board 4 through a connecting plate 3. The push rod 7 is connected to the pushing die 12. The forming plug board 4 is arranged above the pushing die 12. An inlet is provided on the front side of the bag expanding device 9, and the bag 6 is expanded on the rear side of the bag expanding device 9. The pushing die 12 is used to push the product 5 from the bag expanding device 9 into the bag.
[0016] A servo motor 8 is provided on one side of the guide rail slider mechanism 2. The servo motor 8 drives the slider of the guide rail slider mechanism 2 to move through a synchronous belt 11. The servo motor 8 can accurately control the rotation of the motor. The use of the synchronous belt 11 enables precise transmission, allowing the slider to reach the required position, and the cost is lower compared to directly using an electric cylinder.
[0017] A lifting plate 10 for lifting the product 5 is provided outside the inlet of the bag expanding device 9. After the product is placed on the lifting plate 10, the lifting plate 10 can lift the product 5 to a specified position, align it with the inlet of the bag expanding device 9, facilitating the layout of the feeding step and the pushing of the product by the pushing die 12.
[0018] An air hole 12-1 is provided on the side of the pushing die 12. After the pushing die 12 pushes the product 5 into the bag 6, the air hole 12-1 sucks air to suck away the excess air in the bag 6.
[0019] When the present utility model is in use, the cylinder 1 is controlled to first extend the forming plug board 4. The lifting plate 10 lifts the product to a specified position. Then, the servo motor drives the slider to move through the synchronous belt 11. The forming plug board 4 remains extended and moves forward with the push rod 7. The pushing die 12 pushes the product 5 into the bag 6 expanded by the bag expanding device 9. After the pushing is in place, the cylinder 1 is controlled to retract the forming plug board 4, and the air hole 12-1 sucks out the excess air in the bag 6 to complete the sealing.
[0020] The forming plug board 4 expands the upper part of the bag 6, which can prevent the bag 6 from skewing due to unevenness of the product 5 when pushing the product 5. The width and the extended length of the forming plug board 4 are the length and height required for the product, thereby effectively controlling the length and height of the finished product. After forming, the qualified packaged bag is as Figure 3As shown, the heights on both sides of the sealing line 6-1 are approximately equal (H≈h).
Claims
1. A product pushing mechanism for a packaging machine, characterized in that: The invention comprises a cylinder (1), a guide rail slider mechanism (2), a connecting plate (3), a forming plug plate (4) and a bag expander (9); the slider of the guide rail slider mechanism (2) is connected to a driving device and is provided with a cylinder (1) and a push rod (7); the cylinder (1) is connected to the forming plug plate (4) via the connecting plate (3); the push rod (7) is connected to a pushing mold (12); the forming plug plate (4) is arranged above the pushing mold (12); an inlet is arranged on the front side of the bag expander (9); the bag (6) is opened at the rear side of the bag expander (9); and the pushing mold (12) is used to push the product (5) from the bag expander (9) into the bag.
2. A product pushing mechanism for a packaging machine according to claim 1, characterized in that: A servo motor (8) is provided on one side of the guide rail slider mechanism (2), and the servo motor (8) drives the slider of the guide rail slider mechanism (2) to move via a synchronous belt (11).
3. A product pushing mechanism for a packaging machine according to claim 1, characterized in that: A lifting plate (10) for lifting the product (5) is provided on the outer side of the inlet of the bag expander (9).
4. A product pushing mechanism for a packaging machine according to claim 1, characterized in that: The side surface of the pushing mold (12) is provided with an air hole (12-1).