A soft package bag processing bag mouth welding device

CN224928640UActive Publication Date: 2026-11-03GUANGDONG BOYUE DIGITAL APPL TECH CO LTD
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Patent Information

Application Number
CN202522340171.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-11-03
Estimated Expiration
2035-11-04

AI Technical Summary

Technical Problem

Existing flexible packaging bag processing bag nozzle welding equipment has a low degree of automation and requires a lot of manual operation, resulting in unstable welding quality and problems such as weak bag nozzle welding and poor sealing.

Method used

A device was designed that includes a workbench, a support frame, a packaging bag conveying tray, a bag mouth conveying tray, a pushing mechanism, a welding mechanism, and a driving mechanism. The device achieves automatic docking and welding of the bag mouth and the packaging bag through synchronous transmission and precise pushing, and controls the welding quality by using the heating wire and pressure sensor of the welding head.

Benefits of technology

It improves the automation level of welding, ensures accurate welding position, enhances welding quality, reduces manual intervention, and achieves efficient welding operations for flexible packaging bags and bag mouths.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to soft packing bag processing equipment technical field, concretely is a kind of soft packing bag processing bag mouth welding device, including workbench, the bottom fixed mounting of workbench is symmetrically distributed with support frame, the both sides of workbench top are rotatably installed with pivot, and the top of one pivot is fixedly installed with packaging bag conveying disc. This kind of soft packing bag processing bag mouth welding device, by workbench, support frame, packaging bag conveying disc, bag mouth conveying disc, bag mouth adaptation groove, packaging bag adaptation groove, welding port, push mechanism, the cooperation of welding mechanism and drive mechanism, by packaging bag adaptation groove and bag mouth adaptation groove can disposablely place multiple materials and stable limit. High degree of automation, drive mechanism makes conveying disc synchronous rotation, push mechanism accurately promotes bag mouth and packaging bag butt joint, and welding mechanism completes welding. Can effectively avoid welding position deviation, improve welding quality.
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Description

Technical Field

[0001] This utility model relates to the technical field of flexible packaging bag processing equipment, specifically a bag mouth welding device for flexible packaging bag processing. Background Technology

[0002] In the modern product packaging field, flexible packaging bags are widely used in many industries such as food, daily chemicals, and pharmaceuticals due to their numerous advantages, including lightweight, low cost, and high printability. As consumers' demands for product convenience and functionality continue to increase, flexible packaging bags with flaps have emerged. This design facilitates the retrieval and sealing of contents, greatly improving the user experience, and market demand is growing rapidly.

[0003] However, existing bag nozzle welding technologies and equipment for flexible packaging bags have some problems that urgently need to be solved. Some traditional welding equipment has a low degree of automation and requires a lot of manual operation, which not only increases labor costs but also easily leads to unstable welding quality due to human factors, resulting in weak bag nozzle welding, poor sealing, and other problems, which in turn affect the product's sealing performance and shelf life.

[0004] Therefore, it is necessary to provide a bag mouth welding device for processing flexible packaging bags to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a bag mouth welding device for processing flexible packaging bags, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A flexible packaging bag nozzle welding device, comprising:

[0008] The workbench has symmetrically distributed support frames fixedly installed at its bottom, and rotating shafts are rotatably installed on both sides of the top of the workbench. A packaging bag conveying tray is fixedly installed at the top of one rotating shaft, and a bag mouth conveying tray is fixedly installed at the top of the other rotating shaft.

[0009] The outer side of the top of the packaging bag conveyor tray has several equidistant and evenly distributed packaging bag adapter slots. The bottom side of the packaging bag adapter slot has a welding port. The outer side of the top of the bag mouth conveyor tray has a bag mouth adapter slot corresponding to the position and number of the packaging bag adapter slots.

[0010] A drive mechanism is provided at the bottom of the workbench, and a pushing mechanism and a welding mechanism are respectively provided on the rear side of the top of the workbench.

[0011] Preferably, the pushing mechanism includes a vertical track, which is fixedly installed on the rear side of the top of the workbench. A lead screw is rotatably installed inside the vertical track. An adjusting block is sleeved on the outer wall of the lead screw and is slidably installed on the vertical track. A first servo motor is fixedly installed at the top of the vertical track, and the driving end of the first servo motor passes through the vertical track and extends into the interior of the vertical track, where it is fixedly connected to the top of the lead screw. A connecting arm is fixedly installed on the front of the adjusting block, and an electric telescopic rod is fixedly installed at the front end of the connecting arm. A push plate is fixedly installed at the driving end of the electric telescopic rod.

[0012] Preferably, the welding mechanism includes a limiting frame, which is fixedly installed on the rear side of the top of the workbench. Cylinders are fixedly inserted and installed on both the top of the limiting frame and the bottom of the workbench, and welding heads are installed on the driving ends of both cylinders.

[0013] Preferably, the drive mechanism includes a fixed frame, which is fixedly installed on one side of the bottom of the worktable. A second servo motor is fixedly installed on the fixed frame. The bottom ends of the two rotating shafts pass through the worktable and extend to the bottom of the worktable. The bottom end of one of the rotating shafts is fixedly connected to the drive end of the second servo motor. A synchronous transmission mechanism is provided between the two rotating shafts.

[0014] Preferably, the synchronous transmission mechanism consists of a synchronous belt, a main synchronous pulley, and a secondary synchronous pulley, and the main synchronous pulley and the secondary synchronous pulley are connected by the synchronous belt meshing transmission.

[0015] Preferably, the adjusting block has a threaded hole that matches the lead screw, and the adjusting block is threadedly connected to the lead screw through the threaded hole.

[0016] Preferably, the position of the welding head corresponds to the position of the welding joint.

[0017] Preferably, the position of the push plate corresponds to the position of the bag mouth adapter groove.

[0018] Preferably, the welding head is provided with a heating wire and a pressure sensor inside, and a buffer pad is provided on the opposite surfaces of the two welding heads.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] This invention utilizes a workbench, support frame, packaging bag conveyor tray, bag nozzle conveyor tray, bag nozzle adapter slot, packaging bag adapter slot, welding joint, pushing mechanism, welding mechanism, and drive mechanism in coordination. Multiple materials can be placed simultaneously and stably positioned via the packaging bag adapter slot and bag nozzle adapter slot. It features a high degree of automation; the drive mechanism synchronizes the rotation of the conveyor tray, the pushing mechanism precisely pushes the bag nozzle to align with the packaging bag, and the welding mechanism completes the welding. This effectively avoids welding position deviations, improves welding quality, and allows for repeated processing after welding, facilitating worker retrieval and material replenishment, thus achieving efficient welding operations for flexible packaging bags and bag nozzles. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a bottom view of the structure of this utility model;

[0023] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0025] In the diagram: 1. Workbench; 2. Support frame; 3. Packaging bag conveyor tray; 4. Bag mouth conveyor tray; 5. Bag mouth adapter slot; 6. Packaging bag adapter slot; 7. Welding joint; 8. Vertical track; 9. First servo motor; 10. Adjusting block; 11. Connecting arm; 12. Electric telescopic rod; 13. Cylinder; 14. Welding head; 15. Limiting frame; 16. Rotating shaft; 17. Synchronous transmission mechanism; 18. Fixed frame; 19. Lead screw; 20. Second servo motor; 21. Push plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-4 One embodiment provided by this utility model:

[0028] A flexible packaging bag nozzle welding device, comprising:

[0029] Workbench 1, with symmetrically distributed support frames 2 fixedly installed at the bottom of workbench 1, and rotating shafts 16 rotatably installed on both sides of the top of workbench 1. A packaging bag conveyor tray 3 is fixedly installed at the top of one rotating shaft 16, and a bag mouth conveyor tray 4 is fixedly installed at the top of the other rotating shaft 16.

[0030] The outer side of the top of the packaging bag conveyor tray 3 is provided with several equidistant and evenly distributed packaging bag adapter slots 6. The bottom side of the packaging bag adapter slot 6 is provided with a welding port 7. The outer side of the top of the bag mouth conveyor tray 4 is provided with a bag mouth adapter slot 5 corresponding to the position and number of the packaging bag adapter slots 6.

[0031] A drive mechanism is provided at the bottom of the workbench 1, and a pushing mechanism and a welding mechanism are provided on the rear side of the top of the workbench 1.

[0032] The pushing mechanism includes a vertical track 8, which is fixedly installed on the rear side of the top of the workbench 1. A lead screw 19 is rotatably installed inside the vertical track 8. An adjusting block 10 is sleeved on the outer wall of the lead screw 19 and is slidably installed on the vertical track 8. A first servo motor 9 is fixedly installed at the top of the vertical track 8, and the drive end of the first servo motor 9 passes through the vertical track 8 and extends into the interior of the vertical track 8 and is fixedly connected to the top end of the lead screw 19. A connecting arm 11 is fixedly installed on the front of the adjusting block 10, and an electric telescopic rod 12 is fixedly installed at the front end of the connecting arm 11. A push plate 21 is fixedly installed at the drive end of the electric telescopic rod 12. The first servo motor 9 drives the lead screw 19 to move the adjusting block 10 along the vertical track 8. Combined with the electric telescopic rod 12 and the push plate 21, material pushing can be achieved flexibly and accurately.

[0033] In one embodiment, the welding mechanism includes a limiting frame 15, which is fixedly installed on the rear side of the top of the workbench 1. Cylinders 13 are fixedly inserted and installed on both the top of the limiting frame 15 and the bottom of the workbench 1. Welding heads 14 are installed on the drive ends of the two cylinders 13, which can accurately control the movement of the welding heads 14 and ensure stable and efficient welding operation.

[0034] In one preferred embodiment, the drive mechanism includes a fixed frame 18, which is fixedly installed on one side of the bottom of the worktable 1. A second servo motor 20 is fixedly installed on the fixed frame 18. The bottom ends of two rotating shafts 16 pass through the worktable 1 and extend to the bottom of the worktable 1. The bottom end of one rotating shaft 16 is fixedly connected to the drive end of the second servo motor 20. A synchronous transmission mechanism 17 is provided between the two rotating shafts 16. The synchronous transmission mechanism 17 drives the two rotating shafts 16 to rotate synchronously. The structure is compact and reasonable, and the power transmission is stable and efficient.

[0035] In one embodiment, the synchronous transmission mechanism 17 is composed of a synchronous belt, a main synchronous pulley, and a secondary synchronous pulley. The main synchronous pulley and the secondary synchronous pulley are connected by the synchronous belt meshing transmission, which can ensure the synchronicity between the main and secondary synchronous pulleys, and the transmission is precise and stable. It also has a simple structure and is easy to maintain.

[0036] In one preferred embodiment, the adjusting block 10 has a threaded hole that matches the lead screw 19, and the adjusting block 10 is threadedly connected to the lead screw 19 through the threaded hole, which can convert the rotational motion of the lead screw 19 into the linear motion of the adjusting block 10, accurately control the position of the adjusting block 10, and achieve precise adjustment.

[0037] In one embodiment, the position of the welding head 14 corresponds to the position of the welding port 7, which allows the welding head 14 to pass smoothly through the welding port 7 into the packaging bag adapter groove 6, accurately welding the connection between the bag mouth and the soft packaging bag, ensuring accurate and efficient welding operation.

[0038] In one preferred embodiment, the position of the push plate 21 corresponds to the position of the bag mouth adapter groove 5, which can accurately push the bag mouth into the packaging bag adapter groove 6 to dock with the soft packaging bag, avoiding positional deviation and improving welding accuracy and efficiency.

[0039] In one embodiment, the welding head 14 is equipped with a heating wire and a pressure sensor. Buffer pads are provided on the opposite surfaces of the two welding heads 14. The heating wire inside the welding head 14 can precisely control the welding temperature and ensure the welding effect. The pressure sensor can monitor the welding pressure in real time to ensure pressure stability. The buffer pads on the opposite surfaces can reduce the welding impact, protect the soft packaging bag and the bag mouth from damage, and improve the welding quality.

[0040] The working principle of this utility model is as follows: During use, a flexible packaging bag is placed in the packaging bag adapter slot 6. This slot 6 provides stable positioning for the flexible packaging bag, allowing multiple flexible packaging bags to be placed on the packaging bag conveyor tray 3 at once. Simultaneously, a bag spout is placed in the bag spout adapter slot 5 of the bag spout conveyor tray 4. The bag spout adapter slot 5 provides stable positioning for the bag spout, allowing multiple bag spouts to be placed on the bag spout conveyor tray 4 as well. After the materials are placed, the second servo motor 20 is started, and its drive end drives a rotating shaft 16 to rotate. Through the transmission action of the synchronous transmission mechanism 17, the two rotating shafts 16 rotate synchronously, thereby driving the packaging bag conveyor tray 3 and the bag spout conveyor tray 4 to rotate. When the packaging bag adapter slot 6 on the packaging bag conveyor tray 3 corresponds to the bag spout adapter slot 5 on the bag spout conveyor tray 4, the drive mechanism stops driving the packaging bag conveyor tray 3 and the bag spout conveyor tray 4. Then, the first servo motor 9 is activated, and its drive end drives the lead screw 19 to rotate. Through the threaded transmission between the lead screw 19 and the adjusting block 10, and the sliding engagement between the adjusting block 10 and the vertical track 8, the adjusting block 10 moves stably vertically. The movement of the adjusting block 10 drives the electric telescopic rod 12 to move via the connecting arm 11. The electric telescopic rod 12 drives the push plate 21 to move, so that the push plate 21 enters the lower bag mouth adapter groove 5. Next, the drive end of the electric telescopic rod 12 is controlled to drive the push plate 21 to push the bag mouth into the packaging bag adapter groove 6 to connect with the flexible packaging bag. At the same time, the cylinder 13 works, and its drive end drives the two welding heads 14 to move relative to each other. The upper welding head 14 directly enters the packaging bag adapter groove 6, and the lower welding head 14 enters the packaging bag adapter groove 6 through the welding port 7. The two welding heads 14 clamp and weld the connection between the bag mouth and the flexible packaging bag. After welding is completed, the welding head 14 and push plate 21 are reset, and the packaging bag conveyor tray 3 and the bag mouth conveyor tray 4 are rotated synchronously again through the drive mechanism. The welded flexible packaging bag, along with its bag mouth, is output in the packaging bag adapter slot 6. Subsequently, the operator removes the bag from the corresponding packaging bag adapter slot 6 and places a new flexible packaging bag in it. At the same time, the bag mouth adapter slot 5 is replenished in a timely manner, realizing the cyclical welding process of flexible packaging bags and bag mouths. The entire welding process is highly automated. The bag mouth and flexible packaging bag are effectively positioned through the bag mouth adapter slot 5 and the packaging bag adapter slot 6, and the push mechanism precisely pushes the bag mouth to connect with the flexible packaging bag, effectively avoiding welding position deviation and improving welding quality.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bag mouth welding device for processing flexible packaging bags, characterized in that, It includes: The workbench (1) has symmetrically distributed support frames (2) fixedly installed at the bottom. The workbench (1) has rotating shafts (16) on both sides of the top of the workbench (1). A packaging bag conveying tray (3) is fixedly installed at the top of one of the rotating shafts (16), and a bag mouth conveying tray (4) is fixedly installed at the top of the other rotating shaft (16). The outer side of the top of the packaging bag conveying tray (3) is provided with several equidistant and evenly distributed packaging bag adapter slots (6), and the bottom side of the packaging bag adapter slot (6) is provided with a welding port (7). The outer side of the top of the bag mouth conveying tray (4) is provided with a bag mouth adapter slot (5) corresponding to the position and number of the packaging bag adapter slots (6). The bottom of the workbench (1) is provided with a driving mechanism, and the rear side of the top of the workbench (1) is provided with a pushing mechanism and a welding mechanism respectively.

2. The flexible packaging bag nozzle welding device according to claim 1, characterized in that: The pushing mechanism includes a vertical track (8), which is fixedly installed on the rear side of the top of the workbench (1). A lead screw (19) is rotatably installed inside the vertical track (8). An adjusting block (10) is sleeved on the outer wall of the lead screw (19), and the adjusting block (10) is slidably installed on the vertical track (8). A first servo motor (9) is fixedly installed on the top of the vertical track (8), and the driving end of the first servo motor (9) passes through the vertical track (8) and extends into the interior of the vertical track (8) and is fixedly connected to the top of the lead screw (19). A connecting arm (11) is fixedly installed on the front of the adjusting block (10), and an electric telescopic rod (12) is fixedly installed at the front end of the connecting arm (11). A push plate (21) is fixedly installed at the driving end of the electric telescopic rod (12).

3. The flexible packaging bag nozzle welding device according to claim 1, characterized in that: The welding mechanism includes a limiting frame (15), which is fixedly installed on the rear side of the top of the workbench (1). Cylinders (13) are fixedly inserted on the top of the limiting frame (15) and the bottom of the workbench (1). Welding heads (14) are installed on the driving ends of the two cylinders (13).

4. The flexible packaging bag nozzle welding device according to claim 1, characterized in that: The drive mechanism includes a fixed frame (18), which is fixedly installed on one side of the bottom of the workbench (1). A second servo motor (20) is fixedly installed on the fixed frame (18). The bottom ends of the two rotating shafts (16) pass through the workbench (1) and extend to the bottom of the workbench (1). The bottom end of one of the rotating shafts (16) is fixedly connected to the drive end of the second servo motor (20). A synchronous transmission mechanism (17) is provided between the two rotating shafts (16).

5. The flexible packaging bag nozzle welding device according to claim 4, characterized in that: The synchronous transmission mechanism (17) consists of a synchronous belt, a main synchronous pulley and a secondary synchronous pulley, and the main synchronous pulley and the secondary synchronous pulley are connected by the synchronous belt meshing transmission.

6. The flexible packaging bag nozzle welding device according to claim 2, characterized in that: The adjusting block (10) has a threaded hole that matches the lead screw (19), and the adjusting block (10) is threadedly connected to the lead screw (19) through the threaded hole.

7. The flexible packaging bag nozzle welding device according to claim 3, characterized in that: The position of the welding head (14) corresponds to the position of the welding port (7).

8. The flexible packaging bag nozzle welding device according to claim 2, characterized in that: The position of the push plate (21) corresponds to the position of the mouthpiece adapter groove (5).

9. The flexible packaging bag nozzle welding device according to claim 3, characterized in that: The welding head (14) is equipped with a heating wire and a pressure sensor, and a buffer pad is provided on the opposite surfaces of the two welding heads (14).