Continuous feeding component of bag packaging machine
By introducing movable baffles and lifting plate structures into the bag-feeding packaging machine, combined with sensing components and transition support frames, the stability and smoothness issues of traditional feeding components are solved, achieving continuous feeding of packaging bags and improving equipment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WENZHOU RUIYOU INTELLIGENT MACHINERY CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional feeding components are complex and unstable during the bag feeding process, resulting in low equipment smoothness and efficiency, and requiring downtime to wait for replenishment of packaging bags.
The system employs a movable baffle and lifting plate structure, combined with sensors and transition support frames, to achieve continuous feeding of packaging bags, maintain the stability of the top packaging bag height, and ensure that the operation of the equipment is not affected when replenishing packaging bags.
By cooperating with the sensing components and the lifting plate, the height of the packaging bags is kept consistent, enabling continuous feeding, improving the smoothness of equipment operation and work efficiency, and avoiding downtime.
Smart Images

Figure CN224277784U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to packaging equipment, specifically to a continuous feeding component for a bag-type packaging machine. Background Technology
[0002] A pre-filled bag packaging machine is a specialized piece of equipment used to fill and seal materials into packaging bags. The feeding assembly is responsible for supplying the packaging bags. Traditional feeding assemblies mainly consist of a hopper, where packaging bags are stacked and fed. This structure has the following drawbacks: 1. As the packaging bags are continuously fed, their height gradually decreases, requiring the suction assembly to adapt its stroke accordingly. This results in a complex structure and programming design for the suction assembly, making it difficult to guarantee the stability of the feeding process; 2. After all the packaging bags have been fed, the entire machine needs to be stopped to wait for new bags to be added, which affects the smoothness of the equipment's operation and processing efficiency. Utility Model Content
[0003] In view of the deficiencies in the prior art, the technical problem to be solved by this utility model is to provide a continuous feeding component for a bag-type packaging machine to solve the above-mentioned problems.
[0004] Therefore, this utility model is implemented using the following solution:
[0005] A continuous feeding assembly for a bag packaging machine includes a left baffle, a right baffle, a front baffle, and a rear baffle movably mounted on a base. Each baffle cooperates to enclose a bag-placement space. The assembly is characterized by a lifting plate within the bag-placement space, connected to a lifting drive assembly. A bag can be placed on the lifting plate. A sensor is positioned above one side of the lifting plate, and a support assembly is positioned below the sensor. When a bag is placed on the lifting plate, the lifting plate actuates, causing the bag to lift the sensor until it is detected. The assembly also includes transition support frames that can be inserted into the left and right baffles. The lifting plate has slots for inserting the transition support frames. When the transition support frame is inserted into the slot, its top surface is not higher than the top surface of the lifting plate.
[0006] The abutment assembly includes a left abutment step provided on the left baffle and a right abutment step provided on the right baffle.
[0007] The sensing element includes a pressure bar that can contact the packaging bag, and a sensing block is provided on the pressure bar, which can be sensed by the sensor.
[0008] The lifting drive assembly includes a first motor, the output end of which is connected to a drive screw, the drive screw is screwed to a lifting plate, and a guide post is provided corresponding to the lifting plate.
[0009] The continuous feeding component of the bag-feeding packaging machine described above, through the combination of a sensing component and a lifting plate, allows the lifting plate to raise the stacked bags to a suitable height during continuous feeding, ensuring that the height of the topmost bag remains constant so that the subsequent suction component can pick it up. Simultaneously, by setting up a transition support frame, when the lifting plate descends to replenish bags, any remaining bags can be stored on the transition support frame for continuous feeding, eliminating the need for equipment downtime and effectively improving the smoothness and efficiency of equipment operation. Attached Figure Description
[0010] The present invention includes the following figures:
[0011] Figure 1 This is a schematic diagram of the structure of this utility model;
[0012] Figure 2 for Figure 1 A magnified view of the area pointed to by A in the middle. Detailed Implementation
[0013] As shown in the figure, the continuous feeding component of the bag packaging machine disclosed in this utility model includes a left baffle 1, a right baffle 7, a front baffle 2, and a rear baffle 11 movably mounted on a base 5. Each baffle cooperates to enclose a bag-placement space. A lifting plate 4 is provided in the bag-placement space. The lifting plate 4 is connected to a lifting drive component. The bag can be placed on the lifting plate 4. A sensor is provided above one side of the lifting plate 4, and a stop component is provided below the corresponding sensor. When the packaging bag is placed on the lifting plate 4, the lifting plate 4 moves, causing the packaging bag to lift the sensor until the sensor 14 can detect the sensor. It also includes a transition support frame 8 that can be inserted into the left and right baffles. The lifting plate 4 is provided with a slot 6 for the transition support frame 8 to be inserted. When the transition support frame 8 is inserted into the slot 6, the top surface of the transition support frame 8 is not higher than the top surface of the lifting plate 4.
[0014] Furthermore, the abutment assembly includes a left abutment step 12 provided on the left baffle 1 and a right abutment step 10 provided on the right baffle 7. With this structure, there is no need for an additional independent abutment assembly; when not in operation, the sensor can directly rest against the left and right abutment steps 10. Alternatively, guide posts can be provided on the sensor, passing through guide slots on the frame, with a limiting block at the top of the guide post. The minimum height of the sensor is determined when the limiting block abuts against the frame.
[0015] Furthermore, the sensing element includes a pressure rod 9 that can contact the packaging bag, and a sensing block 13 is provided on the pressure rod 9. The sensor 14 can sense the sensing block 13. By adopting this structure, since the length of the pressure rod 9 is relatively long and approximately the width of the packaging bag, it can better contact and squeeze the packaging bag. At the same time, a guide rod can be provided for the sensing block 13 to guide its movement and ensure the stability of its movement.
[0016] Furthermore, the lifting drive assembly includes a first motor, the output end of which is connected to a drive screw, which is screwed to the lifting plate. A guide post is provided corresponding to the lifting plate. A longer connecting sleeve can be provided at the bottom of the lifting plate and screwed to the drive screw to ensure its lifting stroke. By controlling the first motor to drive the drive screw to rotate, the lifting plate can be raised or lowered. Of course, in addition to the above structure, common linear drive mechanisms such as synchronous belts, racks and pinions, and chains can also be used to drive the lifting plate 4 for raising and lowering.
[0017] The working principle of this utility model is as follows: Packaging bags are stacked on the lifting plate 4, and at this time, the transition support frame 8 has not yet been inserted into the left frame plate 1. Then, the lifting drive assembly drives the lifting plate 4 upwards until the packaging bags contact the pressure rod 9, and drives the pressure rod 9 and the sensing block 13 upwards until the sensor 14 senses the sensing block 13, indicating that the top of the packaging bag has been conveyed to the correct position. Subsequently, as the bag suction assembly continuously sucks up the packaging bags, when the top of the packaging bag descends to the point where the sensor 14 can no longer sense the sensing block 13, the sensor 14 sends feedback information to the controller, which then controls the lifting drive assembly to drive the lifting plate 4 upwards. The lifting plate 4 rises again. When the lifting plate 4 reaches a certain height, it needs to be lowered for replenishment. At this time, the transition support frame 8 is inserted into the left frame plate 1, and at the same time, the transition support frame 8 is also inserted into the slot 6 on the lifting plate 4. Then the lifting plate 4 lowers, and the remaining packaging bags are placed on the transition support frame 8 to continue bag feeding. The lifting plate 4 lowers to place new packaging bags on the lifting plate 4. At this time, it may be necessary to disassemble the front frame plate 2. Then the lifting plate 4 rises to the transition support frame 8, and the transition support frame 8 is pulled out so that the lifting plate 4 can receive the packaging bags on the transition support frame 8. Since the bag feeding speed is not very fast, although the transition support frame 8 does not rise or fall during the bag replenishment process, it will not affect the normal bag suction operation.
[0018] This invention features a structure that, through the integration of a sensing component and a lifting plate, allows the lifting plate to raise the stacked packaging bags to a suitable height during continuous feeding, ensuring that the height of the topmost bag remains constant so that the subsequent suction component can pick it up. Simultaneously, by incorporating a transition support frame, when the lifting plate descends to replenish packaging bags, any remaining bags can be stored on the transition support frame for continuous feeding, eliminating the need for equipment downtime and effectively improving the smoothness and efficiency of equipment operation.
Claims
1. A continuous feeding assembly for a bag packaging machine, comprising a left baffle (1), a right baffle (7), a front baffle (2), and a rear baffle (11) movably mounted on a base (5), wherein each baffle cooperates to enclose a bag-holding space, characterized in that: A lifting plate (4) is provided in the bag placement space. The lifting plate (4) is connected to the lifting drive assembly. The bag can be placed on the lifting plate (4). A sensor is provided above one side of the lifting plate (4). A push-off assembly is provided below the sensor. When the packaging bag is placed on the lifting plate (4), the lifting plate (4) moves, causing the packaging bag to lift the sensor until the sensor (14) can sense the sensor. It also includes a transition support frame (8) that can be inserted into the left and right baffles. The lifting plate (4) is provided with a slot (6) for the transition support frame (8) to be inserted. When the transition support frame (8) is inserted into the slot (6), the top surface of the transition support frame (8) is not higher than the top surface of the lifting plate (4).
2. The continuous feeding assembly of the bag packaging machine according to claim 1, characterized in that: The abutment assembly includes a left abutment step (12) provided on the left baffle (1) and a right abutment step (10) provided on the right baffle (7).
3. The continuous feeding assembly of the bag packaging machine according to claim 1, characterized in that: The sensing element includes a pressure bar (9) that can contact the packaging bag, and a sensing block (13) is provided on the pressure bar (9). The sensor (14) can sense the sensing block (13).
4. The continuous feeding assembly of the bag packaging machine according to claim 1, characterized in that: The lifting drive assembly includes a first motor, the output end of which is connected to a drive screw, the drive screw is screwed to a lifting plate, and a guide post is provided corresponding to the lifting plate.