Automatic zipper puller feeding device for zippered bag
By designing an automatic zipper head feeding device, and utilizing a combination of a bag guide frame and a corrector, the lack of automation in zipper bag making machines has been solved, achieving stable transmission and efficient production of zipper bags.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU JINYICHANG MASCH TECH CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-05-15
AI Technical Summary
Existing zipper bag making machines lack automatic zipper head loading function, resulting in low production efficiency and the need for manual intervention, as well as problems with unstable bag transmission.
An automatic zipper head mounting device was designed, comprising a transmission frame, a cylindrical feeder, and a zipper head mounting machine. The device uses a drive cylinder to drive the bag guide frame to swing the bag and a corrector to adjust its position, preventing the bag from being squeezed and folded, and ensuring stable transmission.
It enables automated production of zipper bags, prevents bag compression and folding, improves production efficiency, and ensures stable transmission.
Smart Images

Figure CN224240556U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of zipper bag technology, specifically relating to an automatic zipper head feeding device for zipper bags. Background Technology
[0002] Zipper bags are a widely circulated type of plastic film packaging bag on the market, named for the zipper at the opening. Currently, zipper bag making machines do not have the function of attaching zipper locks. Therefore, zipper bags produced by these machines still require manual assembly of the locks before they can be sold, which is not only inefficient but also a huge waste of manpower.
[0003] The existing automatic zipper head feeding machine needs to pause when assembling the zipper head. When the bag body at the front end is continuously conveyed, it will be squeezed and folded with the bag body at the back end, causing unstable transmission. Utility Model Content
[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is to provide an automatic zipper head device for zipper bags, which can store bags and prevent the bags from being squeezed and folded, thus preventing unstable transmission.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic zipper head feeding device for zipper bags, including a transmission frame, a cylindrical feeder, and a zipper head mounting machine. The cylindrical feeder and the zipper head mounting machine are both installed on the transmission frame. The zipper head mounting machine is located below the cylindrical feeder, and its input end is connected to the output end of the cylindrical feeder. A bag storage device is installed at the input of the transmission frame. The bag storage device includes a bag guide frame and two drive cylinders. The bag guide frame is oscillatingly installed on the transmission frame, and the two drive cylinders are symmetrically installed on the transmission frame. The drive ends of the two drive cylinders are rotatably connected to the two sides of the bag guide frame, respectively.
[0006] The bag guide frame is provided with multiple bag guide rods, and multiple rotating columns are installed on the symmetrical sides of the bag guide frame. The driving end of the driving cylinder is provided with a rotating ring, which is sleeved on the rotating column. A nut is threaded onto the rotating column, and the diameter of the nut is larger than that of the rotating ring.
[0007] The outer surface of the rotating column is uniformly provided with multiple raised strips.
[0008] The transmission frame has two correctors installed between the bag storage device and the zipper head installation machine. The two correctors are symmetrically arranged. The transmission frame has an offset detector connected to the corrector signal control on one side of the corrector.
[0009] The corrector includes a correcting cylinder, a clamping cylinder, and two clamping wheels. The correcting cylinder is fixedly installed on one side of the transmission frame, and the output end of the correcting cylinder faces the other side of the transmission frame. The clamping cylinder is installed on the output end of the correcting cylinder. One of the clamping wheels is rotatably installed on the output end of the clamping cylinder, and the other clamping wheel is rotatably installed on the output end of the correcting cylinder and is located directly below the output end of the clamping cylinder.
[0010] Both clamping wheels have multiple clamping grooves recessed on their outer circumferences.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] This utility model discloses an automatic zipper head feeding device for zipper bags. The zipper head is fed by a cylindrical feeder and installed by a zipper head installation machine. The device uses a drive cylinder to push a bag guide frame to swing, and the bag body is wrapped around the bag guide frame. When the bag guide frame swings away from the zipper head installation machine, it stretches the bag body to prevent the bag body from being squeezed and folded. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the automatic zipper head device of this utility model;
[0014] Figure 2 This is an enlarged structural diagram of point A in this utility model;
[0015] Figure 3 This is a schematic diagram of the corrector of this utility model.
[0016] The markings in the diagram are: 1. Conveyor frame; 2. Cylindrical feeder; 3. Zipper head installer; 4. Bag guide frame; 5. Drive cylinder; 6. Bag guide rod; 7. Rotating column; 9. Rotating ring; 10. Nut; 11. Corrector; 12. Offset detector; 13. Correcting cylinder; 14. Clamping cylinder; 15. Clamping wheel. Detailed Implementation
[0017] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below in conjunction with the accompanying drawings for detailed explanation.
[0018] like Figures 1-3As shown, this embodiment provides an automatic zipper head feeding device for zipper bags, including a transmission frame 1, a cylindrical feeder 2, and a zipper head mounting machine 3. Both the cylindrical feeder and the zipper head mounting machine 3 are mounted on the transmission frame 1. The zipper head mounting machine 3 is located below the cylindrical feeder, and its input end is connected to the output end of the cylindrical feeder. A bag storage device is installed at the input of the transmission frame 1. The bag storage device includes a bag guide frame 4 and two drive cylinders 5. The bag guide frame 4 is oscillatingly mounted on the transmission frame 1, and the two drive cylinders 5 are symmetrically mounted on the transmission frame 1. The drive ends of the two drive cylinders 5 are rotatably connected to the two sides of the bag guide frame 4, respectively. The zipper head is fed into the cylindrical feeder, and the zipper head installation machine 3 installs the zipper head. The zipper head is installed by the zipper head installation machine 3, which drives the guide frame 4 to swing through the drive cylinder 5. The bag body is wrapped around the guide frame 4. When the guide frame 4 swings away from the zipper head installation machine 3, it stretches the bag body to prevent the bag body from being squeezed and folded, which would cause unstable transmission. When the guide frame 4 swings towards the zipper head installation machine 3, it retracts the bag body to reset and resumes normal transmission.
[0019] Furthermore, the bag guide frame 4 is equipped with multiple bag guide rods 6, and multiple rotating columns 7 are installed on the symmetrical sides of the bag guide frame 4. The driving end of the drive cylinder 5 is equipped with a rotating ring 9, which is rotatably sleeved on the rotating column 7. A nut 10 is threaded onto the rotating column 7, and the diameter of the nut 10 is larger than that of the rotating ring 9. Specifically, multiple convex strips are evenly protruding on the outer surface of the rotating column 7. The bag body is passed around the multiple bag guide rods 6, and the driving end of the drive cylinder 5 is rotatably mounted on the corresponding rotating column 7 as needed.
[0020] Furthermore, the transfer frame 1 has two correctors 11 installed between the bag holder and the zipper head installation machine 3. The two correctors 11 are symmetrically arranged, and the transfer frame 1 has an offset detector 12 installed on one side of the correctors 11, which is connected to the signal control of the correctors 11. When installing the zipper head, the bag may tilt to one side, which is detected by the offset detector 12 and corrected in conjunction with the two correctors 11.
[0021] Furthermore, the corrector 11 includes a correcting cylinder 13, a clamping cylinder 14, and two clamping wheels 15. The correcting cylinder 13 is fixedly installed on one side of the transmission frame 1, with its output end facing the other side of the transmission frame 1. The clamping cylinder 14 is installed on the output end of the correcting cylinder 13, with one clamping wheel 15 rotatably installed on the output end of the clamping cylinder 14, and the other clamping wheel 15 rotatably installed on the output end of the correcting cylinder 13, positioned directly below the output end of the clamping cylinder 14. Specifically, both clamping wheels 15 have multiple clamping grooves recessed on their outer circumferences. The clamping cylinder 14 drives one clamping wheel 15 to descend, coordinating with the other clamping wheel 15 to clamp the bag body. The correcting cylinder 13 drives the clamping cylinder 14 to adjust its position, thereby pulling the bag body to adjust its position. The multiple clamping grooves recessed on the outer circumferences of both clamping wheels 15 increase the clamping friction.
[0022] The foregoing has shown and described the basic principles and main features of this invention, as well as its advantages. Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this invention. Various changes and modifications can be made to this invention without departing from its spirit and scope. All such changes and modifications fall within the scope of this invention as defined by the appended claims and their equivalents.
Claims
1. An automatic zipper head feeding device for a zipper bag, characterized in that: The system includes a transmission frame, a cylindrical feeder, and a zipper head installation machine. Both the cylindrical feeder and the zipper head installation machine are mounted on the transmission frame. The zipper head installation machine is located below the cylindrical feeder, and its input end is connected to the output end of the cylindrical feeder. A bag storage device is installed at the input of the transmission frame. The bag storage device includes a bag guide frame and two drive cylinders. The bag guide frame is oscillatingly mounted on the transmission frame, and the two drive cylinders are symmetrically mounted on the transmission frame. The drive ends of the two drive cylinders are rotatably connected to the two sides of the bag guide frame, respectively.
2. The automatic zipper head feeding device for a zipper bag according to claim 1, characterized in that: The bag guide frame is provided with multiple bag guide rods, and multiple rotating columns are installed on the symmetrical sides of the bag guide frame. The driving end of the driving cylinder is provided with a rotating ring, which is sleeved on the rotating column. A nut is threaded onto the rotating column, and the diameter of the nut is larger than that of the rotating ring.
3. The automatic zipper head feeding device for a zipper bag according to claim 2, characterized in that: The outer surface of the rotating column is uniformly provided with multiple raised strips.
4. The automatic zipper head feeding device for a zipper bag according to claim 1, characterized in that: The transmission frame has two correctors installed between the bag storage device and the zipper head installation machine. The two correctors are symmetrically arranged. The transmission frame has an offset detector connected to the corrector signal control on one side of the corrector.
5. The automatic zipper head feeding device for a zipper bag according to claim 4, characterized in that: The corrector includes a correcting cylinder, a clamping cylinder, and two clamping wheels. The correcting cylinder is fixedly installed on one side of the transmission frame, and the output end of the correcting cylinder faces the other side of the transmission frame. The clamping cylinder is installed on the output end of the correcting cylinder. One of the clamping wheels is rotatably installed on the output end of the clamping cylinder, and the other clamping wheel is rotatably installed on the output end of the correcting cylinder and is located directly below the output end of the clamping cylinder.
6. The automatic zipper head feeding device for a zipper bag according to claim 5, characterized in that: Both clamping wheels have multiple clamping grooves recessed on their outer circumferences.