Packaging bag storing and folding device
By linking the pressing and pushing mechanisms, the problem of damage caused by the swinging of paper packaging bags during folding is solved, achieving stable folding and efficient unloading, thus improving the yield of packaging bags and the efficiency of the device.
Patent Information
- Application Number
- CN202520593049.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Paper packaging bags are prone to swinging during folding, which can lead to damage, affecting folding stability and yield.
The packaging bag is pressed down and pushed together by a combination of a pressure mechanism and a push mechanism. Through the linkage of a drive motor, a push cylinder and a swing frame, the middle of the packaging bag is pressed down and the two ends swing around. Combined with the synchronous movement of the transmission belt and the rotating rod, the packaging bag is kept stable during the folding process, and the bag is unloaded through a rubber plate.
It improves the stability of packaging bags during folding, reduces damage, increases yield, and enhances the smoothness and stability of the device, facilitating subsequent processing.
Smart Images

Figure CN223892145U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag storage and folding technology, specifically to a packaging bag storage and folding device. Background Technology
[0002] Packaging bags refer to various types of bags used for packaging, securing, protecting, displaying goods, and facilitating storage, transportation, and sales. They are usually made of a variety of materials such as plastic, paper, cloth, aluminum foil, and composite materials. The specific choice depends on the characteristics of the packaged goods, storage conditions, transportation methods, and market positioning.
[0003] Paper packaging bags take up a lot of space after production due to their material properties. Therefore, they need to be folded to save space during storage, making them easier to transport and store. However, because the ends of the paper packaging bag are relatively heavy, they tend to swing around during the folding process, which can lead to damage. Therefore, it is necessary to further improve the stability of the packaging bag during the folding process. Utility Model Content
[0004] The purpose of this utility model is to provide a packaging bag storage and folding device to solve the problem in the background art where paper packaging bags swing during the folding process, resulting in damage to the packaging bags.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] A packaging bag storage and folding device includes a base frame, an mounting frame fixedly installed on the top of the base frame, and push cylinders symmetrically fixedly installed on the bottom end of the base frame. Both ends of the mounting frame are rotatably connected to swing frames. The output end of the push cylinder is rotatably connected to the bottom end of the swing frame. Several crossbars are equidistantly installed on the swing frame. A pressing mechanism for folding the packaging bag is fixedly installed on one side of one of the mounting frames. The bottom end of the pressing mechanism is provided with a pushing mechanism for pushing the packaging bag.
[0007] The pressing mechanism includes a mounting bracket fixedly installed on the mounting frame. A drive motor is fixedly installed at the top of the mounting bracket. A lead screw is rotatably connected inside the mounting bracket. The output end of the drive motor passes through the side wall of the mounting bracket and is fixedly connected to one end of the lead screw. A pressure rod is threaded onto the lead screw, and the pressure rod is slidably connected to the mounting bracket.
[0008] Using the above technical solution, after the packaging bag is produced, it needs to be folded and stored. After the packaging bag enters the swing frame through the conveying device, the pressing mechanism starts to work. The pressing mechanism presses down the middle of the packaging bag, restricting it along the center line and restricting both ends of the packaging bag. At the same time, the push cylinder starts to work, driving the swing frame to rotate and swinging both ends of the packaging bag to the pressing mechanism in a circular motion, thus causing the packaging bag to complete the folding operation. After the packaging bag is folded, the swing frame partially resets under the drive of the push cylinder. Then, the pushing mechanism pushes the packaging bag to complete the unloading of the folded packaging bag.
[0009] A further improvement of the present invention is that the pressing mechanism further includes a connecting seat fixedly installed at one end of the pressing rod, a vertical rod fixedly installed at the bottom end of the connecting seat, a transmission belt symmetrically installed at the bottom end of the vertical rod, mounting rods rotatably connected to the opposite end of the swing frame, a transmission wheel fixedly installed at one end of the two mounting rods through the side wall of the swing frame, the two transmission wheels being fixedly connected to the ends of the two transmission belts away from the vertical rods respectively, and rotating rods being symmetrically fixedly installed on the two mounting rods, with the two rotating rods fixedly connected by a reinforcing frame.
[0010] Using the above technical solution, when the conveying device feeds the packaging bag onto the swing frame, the drive motor starts working. The drive motor drives the lead screw, which in turn causes the pressure bar to descend along the mounting support. As the pressure bar descends, it presses down on the middle of the packaging bag. Simultaneously, as the pressure bar descends, it drives the vertical rod to press down synchronously through the connecting seat. As the vertical rod presses down, the transmission belt at the bottom of the vertical rod tightens and pulls the transmission wheel to rotate. As the transmission wheel rotates, it drives the mounting rod to rotate, thereby rotating the rotating rod. Through the rotation of the rotating rod, the two ends of the packaging bag on the swing frame are pressed down and restricted, thus keeping the packaging bag stable during winding, and thus providing better control for the device to process the packaging bag.
[0011] A further improvement of the present invention is that a number of rotating blocks are equidistantly connected to one side of the rotating rod.
[0012] By adopting the above technical solution, the rotating block set between the two rotating rods can increase the installation fit between the rotating rods and further increase the stability of the device during use.
[0013] A further improvement of this utility model is that the top of the mounting bracket is provided with a groove that presses against the pressure rod.
[0014] By adopting the above technical solution, the groove on the top of the mounting frame allows the pressing mechanism to press down on the center line of the packaging bag more effectively, thereby creating an indentation and folding the packaging bag more easily.
[0015] A further improvement of this utility model is that a mating seat is provided at the end of the swing frame away from the mounting frame, which is in mutual compression with the rotating rod.
[0016] By adopting the above technical solution, the mating seat set at the end of the swing frame can further improve the restriction of the rotating rod on the packaging bag, increase the fit between the packaging bag and the swing frame and the rotating rod, and thus better restrict the folding of the packaging bag and increase the folding effect of the device.
[0017] A further improvement of the present invention is that the pushing mechanism includes a mounting base symmetrically fixedly installed on the top of the swing frame, a fixed frame fixedly installed on one side of the two mounting bases, a cylinder fixedly installed on the end of the fixed frame away from the mounting base, the output end of the cylinder passing through the side wall of the fixed frame and fixedly connected to one end of the sliding frame, and the sliding frame slidingly connected to the top of the mounting base, and a stop plate fixedly installed on one end of the sliding frame passing through the side wall of the mounting base.
[0018] Using the above technical solution, after the pressing mechanism completes the folding restriction of the packaging bag, the cylinder starts to work. The cylinder drives the sliding frame to move, and in conjunction with the abutment plate at the end of the sliding frame, it pushes the packaging bag to complete the unloading of the packaging bag, thus facilitating the next folding operation.
[0019] A further improvement to the technical solution of this utility model is that the abutment is made of rubber.
[0020] By adopting the above technical solution, the rubber-made abutment avoids hard contact between the abutment and the packaging bag, thus preventing damage to the packaging bag during unloading.
[0021] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0022] 1. This utility model, through the setting of the pressing mechanism, can quickly complete the double-end restriction and folding of the packaging bag, facilitating subsequent storage. The pressing mechanism adopts a simultaneous pressing and restriction mechanism, which further improves the stability of the packaging bag during the folding process. That is, when folding, the two ends of the packaging bag are kept in close contact with the swing frame, avoiding the packaging bag from swinging randomly, which could cause damage to the packaging bag during folding. This further improves the yield of the packaging bag during folding, thereby increasing the smoothness of the device and enabling orderly folding of the packaging bag.
[0023] 2. This utility model, through the setting of the pushing mechanism, can quickly unload the folded packaging bag for subsequent processing operations. The pushing mechanism is set at the bottom of the pressing mechanism, that is, at the tip of the packaging bag when it is folded into a V-shape. This increases the degree of cooperation between the pushing mechanism and the packaging bag when unloading the bag, resulting in better unloading and further improving the stability and efficiency of the device. Attached Figure Description
[0024] The present invention will be further described below with reference to the accompanying drawings.
[0025] Figure 1 This is a first-person view of the overall structure of the device of this utility model;
[0026] Figure 2 This is a second-view structural schematic diagram of the device as a whole.
[0027] Figure 3 This is a first-person view of the structural schematic diagram of the pressing mechanism of this utility model;
[0028] Figure 4 This is a second-view structural schematic diagram of the pressing mechanism of this utility model;
[0029] Figure 5 This is a schematic diagram of the structure of the propulsion mechanism of this utility model.
[0030] In the diagram: 1. Base frame; 2. Mounting frame; 3. Push cylinder; 4. Swing frame; 5. Crossbar; 6. Pressing mechanism; 7. Pushing mechanism; 8. Mounting support; 9. Drive motor; 10. Lead screw; 11. Pressure rod; 12. Connecting seat; 13. Vertical rod; 14. Transmission belt; 15. Mounting rod; 16. Transmission wheel; 17. Rotating rod; 18. Rotating block; 19. Reinforcing frame; 20. Mounting seat; 21. Fixed frame; 22. Cylinder; 23. Sliding frame; 24. Support plate. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to embodiments: Example
[0032] like Figures 1-5 As shown, this utility model provides a packaging bag storage and folding device, including a base frame 1, an mounting frame 2 fixedly installed on the top of the base frame 1, a push cylinder 3 symmetrically fixedly installed on the bottom end of the base frame 1, a swing frame 4 rotatably connected to both ends of the mounting frame 2, the output end of the push cylinder 3 rotatably connected to the bottom end of the swing frame 4, a plurality of crossbars 5 equidistantly installed on the swing frame 4, a pressing mechanism 6 for folding the packaging bag fixedly installed on one side of one of the mounting frames 2, and a pushing mechanism 7 for pushing the packaging bag at the bottom end of the pressing mechanism 6;
[0033] The pressing mechanism 6 includes a mounting bracket 8 fixedly installed on the mounting frame 2. A drive motor 9 is fixedly installed on the top of the mounting bracket 8. A lead screw 10 is rotatably connected inside the mounting bracket 8. The output end of the drive motor 9 passes through the side wall of the mounting bracket 8 and is fixedly connected to one end of the lead screw 10. A pressure rod 11 is threadedly connected to the lead screw 10, and the pressure rod 11 is slidably connected to the mounting bracket 8.
[0034] In this embodiment, after the packaging bag is produced, it needs to be folded and stored. After the packaging bag enters the swing frame 4 through the conveying device, the pressing mechanism 6 starts to work. The pressing mechanism 6 presses down the middle of the packaging bag, restricting it along the center line of the packaging bag and restricting both ends of the packaging bag. At the same time, the pushing cylinder 3 starts to work, driving the swing frame 4 to rotate, causing both ends of the packaging bag to swing circumferentially towards the pressing mechanism 6, thus causing the packaging bag to complete the folding operation. After the packaging bag is folded, the swing frame 4 partially resets under the drive of the pushing cylinder 3. Then, the pushing mechanism 7 pushes the packaging bag to complete the unloading of the folded packaging bag. Example
[0035] like Figure 3 and Figure 4 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the pressing mechanism 6 further includes a connecting seat 12 fixedly installed at one end of the pressing rod 11, a vertical rod 13 fixedly installed at the bottom end of the connecting seat 12, a transmission belt 14 symmetrically installed at the bottom end of the vertical rod 13, mounting rods 15 rotatably connected to opposite ends of the swing frame 4, a transmission wheel 16 fixedly installed at one end of the two mounting rods 15 through the side wall of the swing frame 4, the two transmission wheels 16 are respectively fixedly connected to the ends of the two transmission belts 14 away from the vertical rod 13, rotating rods 17 are symmetrically fixedly installed on the two mounting rods 15, and the two rotating rods 17 are fixedly connected by a reinforcing frame 19.
[0036] In this embodiment, when the conveying device feeds the packaging bag onto the swing frame 4, the drive motor 9 starts working. The drive motor 9 drives the lead screw 10, which in turn causes the pressure rod 11 to descend along the mounting support 8. As the pressure rod 11 descends, it presses down on the middle of the packaging bag. Simultaneously, as the pressure rod 11 descends, it drives the vertical rod 13 to press down synchronously through the connecting seat 12. As the vertical rod 13 presses down, the transmission belt 14 at the bottom of the vertical rod 13 becomes taut and pulls the transmission wheel 16 to rotate. As the transmission wheel 16 rotates, it drives the mounting rod 15 to rotate, which in turn rotates the rotating rod 17. The rotation of the rotating rod 17 presses down on both ends of the packaging bag on the swing frame 4, thereby keeping the packaging bag stable during winding and allowing the device to better restrict and process the packaging bag.
[0037] like Figure 3 and Figure 4 As shown, preferably, a plurality of rotating blocks 18 are equidistantly rotatably connected to one side of the rotating rod 17.
[0038] In this embodiment, the rotating block 18 provided between the two rotating rods 17 can increase the installation fit between the rotating rods 17 and further increase the stability of the device during use.
[0039] like Figure 2 As shown, preferably, the top of the mounting bracket 2 has a groove that presses against the pressure rod 11.
[0040] In this embodiment, the groove on the top of the mounting bracket 2 allows the pressing mechanism 6 to press down on the center line of the packaging bag more effectively, thereby forming an indentation and folding the packaging bag more easily.
[0041] like Figure 2 As shown, in this embodiment, preferably, the end of the swing frame 4 away from the mounting frame 2 is provided with a mating seat that is pressed against the rotating rod 17.
[0042] In this embodiment, the mating seat provided at the end of the swing frame 4 can further improve the restriction of the rotating rod 17 on the packaging bag, increase the fit between the packaging bag and the swing frame 4 and the rotating rod 17, and thus better restrict the folding of the packaging bag and increase the folding effect of the device. Example
[0043] like Figure 5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the pushing mechanism 7 includes a mounting base 20 symmetrically fixedly installed on the top of the swing frame 4, a fixing frame 21 fixedly installed on one side of the two mounting bases 20, a cylinder 22 fixedly installed at the end of the fixing frame 21 away from the mounting base 20, the output end of the cylinder 22 passes through the side wall of the fixing frame 21 and is fixedly connected to one end of the sliding frame 23, and the sliding frame 23 is slidably connected to the top of the mounting base 20, and a stop plate 24 is fixedly installed at one end of the sliding frame 23 through the side wall of the mounting base 20.
[0044] In this embodiment, after the pressing mechanism 6 completes the folding restriction of the packaging bag, the cylinder 22 starts to work. The cylinder 22 drives the sliding frame 23 to move, and the abutment plate 24 set at the end of the sliding frame 23 pushes the packaging bag to complete the unloading of the packaging bag, thereby facilitating the next folding operation.
[0045] like Figure 5 As shown, preferably, the abutment 24 is made of rubber.
[0046] In this embodiment, the rubber-made abutment 24 avoids hard contact between the abutment 24 and the packaging bag, thus preventing damage to the packaging bag during unloading.
[0047] The working principle of this packaging bag storage and folding device is explained in detail below.
[0048] like Figures 1-5 As shown, after the packaging bag is produced, it needs to be folded and stored. After the packaging bag enters the swing frame 4 through the conveying device, the pressing mechanism 6 starts to work. The pressing mechanism 6 presses down the middle of the packaging bag, restricts it along the center line of the packaging bag, and restricts both ends of the packaging bag. At the same time, the pushing cylinder 3 starts to work. The pushing cylinder 3 drives the swing frame 4 to rotate, causing both ends of the packaging bag to swing circumferentially towards the pressing mechanism 6, so that the packaging bag completes the folding operation.
[0049] When the conveying device feeds the packaging bag onto the swing frame 4, the drive motor 9 starts working. The drive motor 9 drives the lead screw 10, which in turn causes the pressure rod 11 to descend along the mounting support 8. As the pressure rod 11 descends, it presses down on the middle of the packaging bag. Simultaneously, as the pressure rod 11 descends, it drives the vertical rod 13 to press down synchronously through the connecting seat 12. As the vertical rod 13 presses down, the transmission belt 14 at the bottom of the vertical rod 13 becomes taut and pulls the transmission wheel 16 to rotate. As the transmission wheel 16 rotates, it drives the mounting rod 15 to rotate, which in turn rotates the rotating rod 17. The rotation of the rotating rod 17 presses down on both ends of the packaging bag on the swing frame 4, thereby keeping the packaging bag stable during winding and allowing the device to better restrict and process the packaging bag.
[0050] After the packaging bag is folded, the swing frame 4 is partially reset under the drive of the push cylinder 3. Then, the push mechanism 7 pushes the packaging bag to complete the unloading of the folded packaging bag.
[0051] After the pressing mechanism 6 completes the folding restriction of the packaging bag, the cylinder 22 starts to work. The cylinder 22 drives the sliding frame 23 to move, and the abutment plate 24 set at the end of the sliding frame 23 pushes the packaging bag to complete the unloading of the packaging bag, thus facilitating the next folding operation.
[0052] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A packaging bag storage and folding device, characterized in that, include: A base frame (1) is fixedly mounted on the top of the base frame (1). A push cylinder (3) is symmetrically fixedly mounted on the bottom end of the base frame (1). A swing frame (4) is rotatably connected to both ends of the mounting frame (2). The output end of the push cylinder (3) is rotatably connected to the bottom end of the swing frame (4). Several crossbars (5) are equidistantly mounted on the swing frame (4). A pressing mechanism (6) for folding the packaging bag is fixedly mounted on one side of one of the mounting frames (2). A pushing mechanism (7) for pushing the packaging bag is provided at the bottom end of the pressing mechanism (6). The pressing mechanism (6) includes a mounting bracket (8) fixedly installed on the mounting frame (2). A drive motor (9) is fixedly installed on the top of the mounting bracket (8). A lead screw (10) is rotatably connected inside the mounting bracket (8). The output end of the drive motor (9) passes through the side wall of the mounting bracket (8) and is fixedly connected to one end of the lead screw (10). A pressure rod (11) is threaded on the lead screw (10), and the pressure rod (11) is slidably connected to the mounting bracket (8).
2. The packaging bag storage folding device according to claim 1, characterized in that: The pressing mechanism (6) further includes a connecting seat (12) fixedly installed at one end of the pressing rod (11). A vertical rod (13) is fixedly installed at the bottom end of the connecting seat (12). A transmission belt (14) is symmetrically installed at the bottom end of the vertical rod (13). An installation rod (15) is rotatably connected to the opposite end of the swing frame (4). A transmission wheel (16) is fixedly installed at one end of the two installation rods (15) through the side wall of the swing frame (4). The two transmission wheels (16) are respectively fixedly connected to the ends of the two transmission belts (14) away from the vertical rod (13). Rotating rods (17) are symmetrically fixedly installed on the two installation rods (15). The two rotating rods (17) are fixedly connected to each other through a reinforcing frame (19).
3. The packaging bag storage folding device according to claim 2, characterized in that: A number of rotating blocks (18) are equidistantly connected to one side of the rotating rod (17).
4. The packaging bag storage and folding device according to claim 3, characterized in that: The top of the mounting bracket (2) has a groove that is pressed and engaged with the pressure rod (11).
5. A packaging bag storage folding device according to claim 4, characterized in that: The swing frame (4) is provided with a mating seat that is pressed against the rotating rod (17) at the end away from the mounting frame (2).
6. A packaging bag storage and folding device according to claim 5, characterized in that: The pushing mechanism (7) includes a mounting base (20) symmetrically fixedly installed on the top of the swing frame (4). A fixed frame (21) is fixedly installed on one side of the two mounting bases (20). A cylinder (22) is fixedly installed at the end of the fixed frame (21) away from the mounting base (20). The output end of the cylinder (22) passes through the side wall of the fixed frame (21) and is fixedly connected to one end of the sliding frame (23). The sliding frame (23) is slidably connected to the top of the mounting base (20). A stop plate (24) is fixedly installed at one end of the sliding frame (23) through the side wall of the mounting base (20).
7. A packaging bag storage folding device according to claim 6, characterized in that: The abutment (24) is made of rubber.