Bag collecting device of bag making machine
By introducing a side-pressure bag mechanism and a scraping bag mechanism into the bag making machine, the problem of uneven stacking caused by bag slippage during the bag collection process is solved, achieving stability and neatness of bags during stacking, and improving bag making efficiency and product aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-05-08
AI Technical Summary
During the bag collection process of the bag making machine, as the number of bags between the lower and upper bag collection seats increases, the bags at the top are more likely to slide, resulting in poor bag stacking neatness.
A bag collecting device including a side-pressure bag mechanism is designed. Through the side pressure plate and the side pressure transmission assembly, the transmission cam and elastic element are used to keep the side pressure plate pressed against the inner side of the bag collecting seat during the transmission process. In conjunction with the bag scraping mechanism and the cutting mechanism, the bag is kept stable during the stacking process.
It achieves stability and neatness of bags during stacking, avoids slippage and misplacement of bags, and improves the aesthetics and efficiency of bag stacking.
Smart Images
Figure CN224210708U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a bag making machine, specifically to a bag collecting device for the bag making machine. Background Technology
[0002] A bag-making machine is a device used to produce bags. Generally, a bag-making machine includes a heat-sealing and cutting mechanism and a bag-collecting mechanism. The bag-collecting mechanism includes a lower bag-collecting seat and an upper bag-collecting seat. The lower and upper bag-collecting seats are used to hold the bags down (the lower bag-collecting seat gradually lowers as the number of bags increases). The heat-sealing and cutting mechanism cuts the held bags and simultaneously heat-seales them, thus forming individual bags that are stacked together. When the bags are stacked to a certain height, a robotic arm pulls the stack of bags out. However, during the bag-collecting process, as the number of bags between the lower and upper bag-collecting seats gradually increases, the bags at the top are more prone to slipping, resulting in poor stacking neatness. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, this utility model innovatively provides a bag collecting device for a bag making machine that enables bags to be stacked stably.
[0004] This bag-making machine's bag-collecting device includes a frame and a bag-collecting mechanism. The bag-collecting mechanism includes a lower bag-collecting seat and an upper bag-collecting seat. A side-pressing bag mechanism is provided on the feeding side of the bag-collecting mechanism. The side-pressing bag mechanism includes a side-pressing plate, a side-pressing rod, and a side-pressing transmission assembly. The side-pressing plate is connected to the side-pressing rod, and the side-pressing rod is rotatably mounted on the frame. The side-pressing transmission assembly includes a transmission arm, a force-receiving wheel, a transmission cam, a cam transmission shaft, a bearing seat, and a side-pressing elastic element. The bearing seat is mounted on the frame, the cam transmission shaft is rotatably mounted on the bearing seat, the transmission cam is connected to the cam transmission shaft, one end of the transmission arm is connected to the side-pressing rod, and the force-receiving wheel is connected to the other end of the transmission arm. The side-pressing elastic element is connected to the transmission arm, and the side-pressing elastic element drives the side-pressing rod to rotate, causing the force-receiving wheel to act on the transmission cam. The rotation of the transmission cam allows the side-pressing plate to have a pressed-bag state (pressing down on the inner side of the lower bag-collecting seat) and an open state (leaving the inner side of the lower bag-collecting seat).
[0005] The bag collecting mechanism has a bag scraping mechanism on the feeding side. The bag scraping mechanism includes an upper bag scraping shaft, a lower bag scraping shaft, a bag scraping chain, and several bag scraping rods. Both the upper and lower bag scraping shafts are rotatably mounted on the frame. An upper gear is connected to the upper bag scraping shaft, and a lower gear is connected to the lower bag scraping shaft. The bag scraping chain is wound around the upper and lower gears, and several bag scraping rods are equally distributed and connected to the bag scraping chain.
[0006] A first transmission gear is connected to the lower scraper shaft, and a second transmission gear is connected to the cam transmission shaft. A first transmission chain is wound around the first transmission gear and the second transmission gear.
[0007] The feeding side of the bag scraping mechanism is equipped with a cutting mechanism, which includes a cutting blade, a cutting pull rod, a cutting transmission sleeve, and a cutting transmission shaft. The cutting transmission shaft is rotatably mounted on the frame. The cutting transmission sleeve is connected to the cutting transmission shaft through an offset bearing. One end of the cutting pull rod is hinged to the cutting transmission sleeve, and the other end of the cutting pull rod is connected to the cutting blade.
[0008] A third transmission gear is connected to the cutting transmission shaft, and a fourth transmission gear is connected to the lower scraping bag shaft. A second transmission chain is wound around the third and fourth transmission gears.
[0009] A guide seat is installed on the frame, and a bag collecting rod that moves up and down is provided on the guide seat. The upper bag collecting seat is connected to the bag collecting rod. A rotatable bag collecting drive shaft is installed on the frame. The bag collecting drive shaft is connected to the bag collecting rod through a connecting arm. One end of the connecting arm is hinged to the bag collecting rod, and the other end of the connecting arm is connected to the bag collecting drive shaft.
[0010] A bag collection drive assembly is provided between the cutting drive shaft and the bag collection drive shaft. The bag collection drive assembly includes a bag collection drive sleeve, a bag collection drive rod, and a bag collection drive arm. The bag collection drive sleeve is connected to the cutting drive shaft through an eccentric bearing. One end of the bag collection drive rod is hinged to the bag collection drive sleeve, and the other end of the bag collection drive rod is hinged to one end of the bag collection drive arm. The other end of the bag collection drive arm is connected to the bag collection drive shaft.
[0011] The cutting drive shaft is connected to the power source.
[0012] The side-pressure elastic element is a tension spring, one end of which is connected to the transmission arm, and the other end of which is connected to the frame.
[0013] The upper surface of the lower collection bag seat is a downward sloping surface. An action pad is provided on the inner side of the lower collection bag seat. The upper surface of the action pad is close to the upper surface of the lower collection bag seat. The upper surface of the action pad is an arc surface, a plane, or an sloping surface.
[0014] According to the bag-collecting device of the bag-making machine provided by this utility model, by providing a side-pressing bag mechanism, after the cutting mechanism cuts the bag, the end of the bag is pressed onto the inner side of the lower bag-collecting seat by the side-pressing bag mechanism, so that the bag remains stable during the stacking process. Attached Figure Description
[0015] Figure 1 This is a partial three-dimensional representation of the present invention. Figure 1 ;
[0016] Figure 2 This is a partial three-dimensional representation of the present invention. Figure 2 ;
[0017] Figure 3 This is a schematic diagram of the bag collection mechanism and the side pressure bag mechanism;
[0018] Figure 4 This is a schematic diagram of the bag scraping mechanism;
[0019] Figure 5 This is a schematic diagram of the structure connecting three different types of pads to the lower collection bag seat. Detailed Implementation
[0020] like Figure 1 and Figure 3 As shown, this bag-making machine's bag-collecting device includes a frame 3 and a bag-collecting mechanism 1. The bag-collecting mechanism 1 includes a lower bag-collecting seat 10 and an upper bag-collecting seat 11. After the bags are cut, they enter between the lower bag-collecting seat 10 and the upper bag-collecting seat 11 for stacking and collection. To make the bags stacked more neatly and flat, a side-pressing bag mechanism 2 is provided on the feeding side of the bag-collecting mechanism 1. Figure 3 As shown, the side-pressure bag mechanism 2 includes a side-pressure plate 20, a side-pressure rod 21, and a side-pressure transmission assembly. The side-pressure plate 20 is connected to the side-pressure rod 21, which is rotatably mounted on the frame 3. The side-pressure transmission assembly includes a transmission arm 23, a force-receiving wheel 24, a transmission cam 25, a cam transmission shaft 28, a bearing seat 26, and a side-pressure elastic element. The bearing seat 26 is mounted on the frame 3 (the bearing seat 26 can be integrated with the frame 3), and the cam transmission shaft 28 is rotatably mounted on the bearing seat 26. On seat 26, transmission cam 25 is connected to cam drive shaft 28, one end of transmission arm 23 is connected to side pressure rod 21, and force wheel 24 is connected to the other end of transmission arm 23; side pressure elastic element is connected to transmission arm 23, side pressure elastic element drives side pressure rod 21 to rotate, and causes force wheel 24 to act on transmission cam 25; rotation of transmission cam 25 can enable side pressure plate 20 to have a bag-pressing state pressing down on the inner side of lower bag seat 10 and an open state leaving the inner side of lower bag seat 10.
[0021] During operation, the cam drive shaft 28 rotates (it can be driven by an independent power source or by other transmission structures), driving the drive cam 25 to rotate. Meanwhile, the side pressure elastic element drives the side pressure rod 21 to rotate, ensuring that the force-bearing wheel 24 always acts on the drive cam 25. When the cam trajectory of the drive cam 25 causes the side pressure plate 20 to have two states: one is that the force-bearing wheel 24 moves outward, thus causing the side pressure plate 20 to swing outward through the force-bearing wheel 24, the drive arm 23, and the side pressure rod 21. Figure 3(Counterclockwise direction), so that the side pressure plate 20 is in an open state away from the inner side of the lower bag holder 10, so that the front end of the bag can hang between the side pressure plate 20 and the lower bag holder 10; another is to move the force wheel 24 inward, so that the side pressure plate 20 swings inward through the force wheel 24, the transmission arm 23 and the side pressure rod 21 ( Figure 3 (In a clockwise direction), the side pressure plate 20 is in a bag-pressing state, pressing down on the inner side of the lower bag-collecting seat 10, so that the front end of the bag is pressed between the side pressure plate 20 and the lower bag-collecting seat 10. Through the continuous rotation of the transmission cam 25, the side pressure plate 20 can press down on each bag in each stack, so that the bags remain stable and do not slip during the stacking process. The stacked bags are flatter and more beautiful, and there will be no misplaced bags or folded bags.
[0022] After the bag is cut off, in order to allow the front end of the bag to fall quickly between the side pressure plate 20 and the lower bag collecting seat 10, a bag scraping mechanism 4 is provided on the feeding side of the bag collecting mechanism 1. For example... Figure 4 As shown, the bag scraping mechanism 4 includes an upper bag scraping shaft 41, a lower bag scraping shaft 40, a bag scraping chain 43, and several bag scraping rods 42. Both the upper and lower bag scraping shafts 41 and 40 are rotatably mounted on the frame 3. An upper gear 410 is connected to the upper bag scraping shaft 41, and a lower gear 400 is connected to the lower bag scraping shaft 40. The bag scraping chain 43 is wound around the upper gear 410 and the lower gear 400. Several bag scraping rods 42 are evenly connected to the bag scraping chain 43. By driving the upper or lower bag scraping shaft 41 or 40, the bag scraping chain 43 can be rotated. Each bag scraping rod 42 on the bag scraping chain 43 can quickly knock down the front end of a bag, causing the front end of the bag to fall rapidly between the side pressure plate 20 and the lower bag collection seat 10. This significantly improves the bag stacking speed.
[0023] Because the bag scraper 42 and the side pressure plate 20 need to work together—that is, after the bag scraper 42 scrapes off the front end of the bag, the side pressure plate 20 presses the front end of the bag onto the lower bag collection seat 10—in order to make the bag scraper 42 and the side pressure plate 20 work together more effectively, such as... Figure 4 As shown, a first transmission gear 44 is connected to the lower scraping shaft 40, and a second transmission gear 27 is connected to the cam transmission shaft 28. A first transmission chain (not shown) is wound around the first transmission gear 44 and the second transmission gear 27. This connection structure allows the cam transmission shaft 28 and the lower scraping shaft 40 to move synchronously, thereby making the movements between the scraping rod 42 and the side pressure plate 20 more synchronized and stable, resulting in more coordinated movements.
[0024] like Figure 1As shown, the bag scraping mechanism 4 has a cutting mechanism 5 on its feeding side. The bag scraping mechanism 4 is used to cut the bag. The cutting mechanism 5 includes a cutting blade 50, a cutting pull rod 51, a cutting transmission sleeve 52, and a cutting transmission shaft 54. The cutting transmission shaft 54 is rotatably mounted on the frame 3. Figure 2 As shown, the cutting transmission sleeve 52 is connected to the cutting transmission shaft 54 via an offset bearing. One end of the cutting pull rod 51 is hinged to the cutting transmission sleeve 52, and the other end of the cutting pull rod 51 is connected to the cutting blade 50. During operation, the cutting transmission shaft 54 rotates under the drive of the power source. The cutting transmission shaft 54 drives the cutting transmission sleeve 52 to move up and down via the offset bearing. In this way, the cutting transmission sleeve 52 can drive the cutting blade 50 to move up and down to perform the cutting action via the cutting pull rod 51.
[0025] Because the cutting blade 50, the scraping bar 42, and the side pressure plate 20 need to work together—that is, after the bag is cut by the cutting blade 50, the scraping bar 42 scrapes off the front end of the bag, and then the side pressure plate 20 presses the bag onto the lower bag collection seat 10—to ensure better coordination between the cutting blade 50, the scraping bar 42, and the side pressure plate 20, such as... Figure 1 As shown, a third transmission gear 53 is connected to the cutting drive shaft 54, as follows: Figure 4 As shown, a fourth transmission gear 45 is connected to the lower scraper shaft 40, and a second transmission chain (not shown) is wound around the third transmission gear 53 and the fourth transmission gear 45. This connection structure allows the cutting transmission shaft 54, the cam transmission shaft 28, and the lower scraper shaft 40 to move synchronously, thereby making the movements of the cutting blade 50, the scraper bar 42, and the side pressure plate 20 more synchronized and stable, resulting in more coordinated actions.
[0026] like Figure 2 As shown, a guide seat 12 is installed on the frame 3, and a vertically movable bag-collecting rod 13 is provided on the guide seat 12. The upper bag-collecting seat 11 is connected to the bag-collecting rod 13. A rotatable bag-collecting drive shaft 15 is installed on the frame 3. The bag-collecting drive shaft 15 is connected to the bag-collecting rod 13 through a connecting arm 14. One end of the connecting arm 14 is hinged to the bag-collecting rod 13, and the other end of the connecting arm 14 is connected to the bag-collecting drive shaft 15. By rotating the bag-collecting drive shaft 15 (which can be driven by an independent power source), the bag-collecting drive shaft 15 pulls the bag-collecting rod 13 up and down within the guide seat 12 through the connecting arm 14. In this way, the bag-collecting rod 13 can pull the upper bag-collecting seat 11 up and down, thereby cooperating with the lower bag-collecting seat 10 to collect bags.
[0027] Because the upper bag holder 11, cutting blade 50, scraping bar 42, and side pressure plate 20 need to work in coordination—that is, after the bag is pressed down by the upper bag holder 11 and lower bag holder 10, the cutting blade 50 performs a cutting action, the scraping bar 42 scrapes off the front end of the bag, and then the side pressure plate 20 presses the bag onto the lower bag holder 10—to ensure better coordination between the upper bag holder 11, cutting blade 50, scraping bar 42, and side pressure plate 20, such as... Figure 2 As shown, a bag-collecting transmission assembly is provided between the cutting transmission shaft 54 and the bag-collecting transmission shaft 15. The bag-collecting transmission assembly includes a bag-collecting transmission sleeve 55, a bag-collecting transmission rod 56, and a bag-collecting transmission arm 57. The bag-collecting transmission sleeve 55 is connected to the cutting transmission shaft 54 via an eccentric bearing. One end of the bag-collecting transmission rod 56 is hinged to the bag-collecting transmission sleeve 55, and the other end of the bag-collecting transmission rod 56 is hinged to one end of the bag-collecting transmission arm 57. The other end of the bag-collecting transmission arm 57 is connected to the bag-collecting transmission shaft 15. During operation, the cutting transmission shaft 54 rotates, driving the bag-collecting transmission sleeve 55 to move up and down via the eccentric bearing. The bag-collecting transmission sleeve 55, through the bag-collecting transmission rod 56 and the bag-collecting transmission arm 57, pulls the bag-collecting transmission shaft 15 to rotate. This connection structure allows the cutting drive shaft 54, the bag collection drive shaft 15, the cam drive shaft 28, and the lower scraper shaft 40 to move synchronously, thereby making the movements of the cutting blade 50, the upper bag collection seat 11, the side pressure plate 20, and the scraper bar 42 more synchronized and stable, meaning the movements are more coordinated.
[0028] As mentioned above, the cutting drive shaft 54 is connected to the power source. Driven by a single power source, the cutting blade 50, the upper bag collecting seat 11, the side pressure plate 20, and the bag scraping rod 42 can move synchronously. This structure is more reasonable, the cost is lower, the movements are more synchronized, the operation is more stable, and the bag collecting effect is better.
[0029] like Figure 3 As shown, the side-pressure elastic element is a tension spring 22. One end of the tension spring 22 is connected to the transmission arm 23, and the other end of the tension spring 22 is connected to the frame 3. Of course, the side-pressure elastic element can be a cylinder or a gas spring.
[0030] Finally, it's worth mentioning that the upper surface 100 of the lower bag holder 10 is a downward-sloping surface (the lower surface of the upper bag holder 11 is also a slope, matching each other; this sloped structure allows the bag's center of gravity to tilt downwards and backwards, preventing the bag from slipping from the front and ensuring proper stacking). To prevent the bag from bending excessively at the edge of the lower bag holder 10 (the bag will bend when its front end is perpendicular to the lower bag holder 10 and the side pressure plate 20; the more it bends, the more easily it deforms during stacking, causing folds), this is addressed. To solve this problem, such as... Figure 5As shown, an action pad 18 is provided on the inner side of the lower collection bag holder 10. The upper end surface of the action pad 18 is close to the upper end surface 100 of the lower collection bag holder 10. The upper end surface of the action pad 18 can be a curved surface, a flat surface, or a sloping surface. These three types of action pads 18 can alleviate the bending of the bags, making the bags more even at the edge of the lower collection bag holder 10, thereby ensuring that the bags are stacked more flat and aesthetically pleasing.
Claims
1. A bag-collecting device for a bag-making machine, comprising a frame (3) and a bag-collecting mechanism (1), wherein the bag-collecting mechanism (1) includes a lower bag-collecting seat (10) and an upper bag-collecting seat (11), and a side-pressing bag mechanism (2) is provided on the feeding side of the bag-collecting mechanism (1), wherein the side-pressing bag mechanism (2) includes a side-pressing plate (20), a side-pressing rod (21) and a side-pressing transmission assembly, wherein the side-pressing plate (20) is connected to the side-pressing rod (21), and the side-pressing rod (21) is rotatably mounted on the frame (3), characterized in that: The side pressure transmission assembly includes a transmission arm (23), a force-receiving wheel (24), a transmission cam (25), a cam transmission shaft (28), a bearing seat (26), and a side pressure elastic element. The bearing seat (26) is mounted on the frame (3), the cam transmission shaft (28) is rotatably mounted on the bearing seat (26), the transmission cam (25) is connected to the cam transmission shaft (28), one end of the transmission arm (23) is connected to the side pressure rod (21), and the force-receiving wheel (24) is connected to the other end of the transmission arm (23). The side pressure elastic element is connected to the transmission arm (23), and the side pressure elastic element drives the side pressure rod (21) to rotate and causes the force-receiving wheel (24) to act on the transmission cam (25). The rotation of the transmission cam (25) allows the side pressure plate (20) to have a pressed bag state pressing down on the inner side of the lower bag collection seat (10) and an open state leaving the inner side of the lower bag collection seat (10).
2. The bag collecting device for a bag making machine according to claim 1, characterized in that: The bag collecting mechanism (1) is provided with a bag scraping mechanism (4) on the feeding side. The bag scraping mechanism (4) includes an upper bag scraping shaft (41), a lower bag scraping shaft (40), a bag scraping chain (43), and several bag scraping rods (42). The upper bag scraping shaft (41) and the lower bag scraping shaft (40) are rotatably mounted on the frame (3). An upper gear (410) is connected to the upper bag scraping shaft (41), and a lower gear (400) is connected to the lower bag scraping shaft (40). The bag scraping chain (43) is wound around the upper gear (410) and the lower gear (400), and several bag scraping rods (42) are equally connected to the bag scraping chain (43).
3. The bag collecting device for a bag making machine according to claim 2, characterized in that: The lower scraper shaft (40) is connected to a first transmission gear (44), and the cam transmission shaft (28) is connected to a second transmission gear (27). A first transmission chain is wound around the first transmission gear (44) and the second transmission gear (27).
4. A bag-collecting device for a bag-making machine according to claim 3, characterized in that: The feeding side of the bag scraping mechanism (4) is provided with a cutting mechanism (5). The cutting mechanism (5) includes a cutting blade (50), a cutting pull rod (51), a cutting transmission sleeve (52), and a cutting transmission shaft (54). The cutting transmission shaft (54) is rotatably mounted on the frame (3). The cutting transmission sleeve (52) is connected to the cutting transmission shaft (54) through an offset bearing. One end of the cutting pull rod (51) is hinged to the cutting transmission sleeve (52), and the other end of the cutting pull rod (51) is connected to the cutting blade (50).
5. A bag-collecting device for a bag-making machine according to claim 4, characterized in that: A third transmission gear (53) is connected to the cutting transmission shaft (54), and a fourth transmission gear (45) is connected to the lower scraping bag shaft (40). A second transmission chain is wound around the third transmission gear (53) and the fourth transmission gear (45).
6. A bag-collecting device for a bag-making machine according to claim 5, characterized in that: A guide seat (12) is installed on the frame (3). A bag collection rod (13) that moves up and down is provided on the guide seat (12). The upper bag collection seat (11) is connected to the bag collection rod (13). A rotatable bag collection drive shaft (15) is installed on the frame (3). The bag collection drive shaft (15) is connected to the bag collection rod (13) through a connecting arm (14). One end of the connecting arm (14) is hinged to the bag collection rod (13), and the other end of the connecting arm (14) is connected to the bag collection drive shaft (15).
7. A bag-collecting device for a bag-making machine according to claim 6, characterized in that: A bag collection drive assembly is provided between the cutting drive shaft (54) and the bag collection drive shaft (15). The bag collection drive assembly includes a bag collection drive sleeve (55), a bag collection drive rod (56), and a bag collection drive arm (57). The bag collection drive sleeve (55) is connected to the cutting drive shaft (54) through an eccentric bearing. One end of the bag collection drive rod (56) is hinged to the bag collection drive sleeve (55), and the other end of the bag collection drive rod (56) is hinged to one end of the bag collection drive arm (57). The other end of the bag collection drive arm (57) is connected to the bag collection drive shaft (15).
8. A bag-collecting device for a bag-making machine according to claim 7, characterized in that: The cutting drive shaft (54) is connected to the power source drive.
9. A bag-collecting device for a bag-making machine according to claim 1, characterized in that: The side-pressure elastic element is a tension spring (22), one end of which is connected to the transmission arm (23), and the other end of which is connected to the frame (3).
10. A bag-collecting device for a bag-making machine according to claim 1, characterized in that: The upper end face (100) of the lower collection bag seat (10) is a downward inclined surface. An action pad (18) is provided on the inner side of the lower collection bag seat (10). The upper end face of the action pad (18) is close to the upper end face (100) of the lower collection bag seat (10). The upper end face of the action pad (18) is an arc surface, a plane or an inclined surface.