A device for unwinding an aluminum foil bag

Abstract

The utility model relates to the technical fields of aluminium foil bag production device, especially aluminium foil bag production unwinding device, include: frame, mounting disc: symmetry sets up in the inner wall of frame, the surface of mounting disc is sequentially provided with upper quick -wired mechanism and lower quick -wired mechanism along vertical direction, two groups of roll roller: respectively detachable connection is in two groups of mounting disc's upper quick -wired mechanism and lower quick -wired mechanism, cross ring frame: symmetry sets up in the outer surface of frame, the outer annular frame outside of cross ring frame is fixedly provided with annular ratchet frame, and the inner cross frame surface of cross ring frame evenly homodromous is provided with tapered extrusion groove. Therefore, the utility model has the advantages of reasonable structure, realizes non-stop switching through the diagonal misregistration distribution of two groups of roll roller, improves efficiency, simplifies roll roller dismounting of quick -wired mechanism, avoids bolt loss, annular ratchet frame and pawl prevent reverse, tapered extrusion groove, elastic chuck and damping ring control speed, enhance security, the distance of upper quick -wired mechanism is big and optimizes barycenter, improves stability.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum foil bag production equipment, and in particular to an aluminum foil bag production unwinding device. Background Technology

[0002] Composite aluminum foil packaging bags are packaging products made by dry lamination of high-purity aluminum into extremely thin sheets through multiple rolling processes, combined with other high-barrier materials. Due to aluminum's excellent thermal conductivity and light-blocking properties, they are widely used in various packaging scenarios. In its processing, the formed aluminum foil bags need to be rolled into rolls by a winding device, and then the rolls are installed on the unwinding device's rollers for unwinding, so that subsequent processes such as fixed-length slitting can be carried out. Currently, most unwinding devices are only equipped with a single roller. When a roll of aluminum foil bags is unwound, the machine needs to be stopped, the old roller needs to be removed, and a new roll needs to be put on. During this process, the unwinding operation is forced to be interrupted, which seriously affects the overall processing efficiency.

[0003] To address this issue, patent application CN218642046U discloses a device for unwinding aluminum foil bags used in barbecues. This device fixes a rotating shaft to a rotating rod and a connecting rod at both ends, allowing operators to switch the positions of the upper and lower rollers by rotating the rotating rod. Once the lower roller has finished unwinding, the upper roller can continue working, thus maintaining unwinding continuity when replacing old rollers and effectively improving efficiency. However, this device still has significant drawbacks in practical applications:

[0004] Firstly, the limiting and connecting structures are cumbersome to operate and prone to damage. The limiting components of the device rely on manually tightening the limiting bolts to fix the rotating rod. When frequently switching the rollers, the bolts need to be tightened repeatedly, making the operation redundant and inefficient. At the same time, the rollers and the mounting blocks are also connected by fastening bolts, which takes a long time to disassemble and assemble, further slowing down the replacement rhythm. Moreover, the bolts are prone to problems such as stripping and thread wear due to long-term high-frequency use, affecting the stability of the equipment.

[0005] Secondly, there are safety hazards during roller switching. Due to the large weight of the rollers (including aluminum foil rolls), they are prone to rapid rotation due to inertia during the rotation and switching process, which is difficult to control precisely by hand and can easily lead to imbalance of the device. This may not only damage the equipment but also cause mechanical injury to the operators. Utility Model Content

[0006] This utility model aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, the purpose of this utility model is to propose an unwinding device for aluminum foil bag production. This utility model has a reasonable structure. It achieves non-stop switching by diagonally staggering two sets of rollers, thereby improving efficiency. The quick-connect mechanism simplifies the disassembly and assembly of the rollers and avoids bolt wear. The annular ratchet frame and ratchet pawl prevent reverse rotation. The conical extrusion groove, elastic clamp and damping ring control the speed, thereby enhancing safety. The large spacing of the upper quick-connect mechanism optimizes the center of gravity and improves stability.

[0008] To achieve the above objectives, this utility model proposes an aluminum foil bag production unwinding device, comprising:

[0009] The frame has symmetrically rotating drive shafts connected to its inner wall;

[0010] Mounting plate: symmetrically arranged on the inner wall of the frame and fixedly connected to the inner end of the drive shaft. The surface of the mounting plate is provided with an upper quick-connect mechanism and a lower quick-connect mechanism in sequence along the vertical direction. The upper quick-connect mechanism and the lower quick-connect mechanism are diagonally staggered on the mounting plate.

[0011] Two sets of rollers: respectively detachably connected to the upper quick-connect mechanism and the lower quick-connect mechanism of the two sets of mounting plates;

[0012] Cross ring frame: symmetrically arranged on the outer surface of the frame and fixedly connected to the outer end of the drive shaft. A ring ratchet frame is fixedly sleeved on the outer ring of the cross ring frame. A rotatable pawl is provided on the outer surface of the frame corresponding to the position of the ring ratchet frame. The pawl engages with the ring ratchet frame in one direction. A tapered extrusion groove is uniformly and unidirectionally opened on the inner cross surface of the cross ring frame. A first elastic clamp with a return spring is provided on the outer surface of the frame corresponding to the position of the tapered extrusion groove. The end of the first elastic clamp slides against the inner wall of the tapered extrusion groove.

[0013] In addition, the aluminum foil bag production unwinding device proposed in the above application may also have the following additional technical features:

[0014] Specifically, the upper quick-connect mechanism and the lower quick-connect mechanism have the same structure. The upper quick-connect mechanism includes a connecting seat, which is fixedly connected to the surface of the mounting plate. A U-shaped groove is provided on the top of the connecting seat. The central shaft end of the roller is fixedly connected to the U-shaped seat and located inside the U-shaped groove. An arc-shaped limiting slide groove is provided on the surface of the connecting seat, and an arc-shaped baffle is slidably connected to the inner wall of the arc-shaped limiting slide groove. One end of the arc-shaped baffle is slidably connected to the top of the U-shaped seat and abuts against the inner wall of the limiting hole on the surface of the connecting seat. A second elastic clamp is symmetrically arranged on the surface of the arc-shaped baffle and is engaged and fixed with the clamping hole on the inner wall of the arc-shaped limiting slide groove.

[0015] Specifically, the top of the U-shaped seat is integrally formed with a hole seat, the end of the arc-shaped baffle is integrally formed with a notch, which corresponds to the position of the hole seat, and the inner wall of the notch is symmetrically provided with an arc-shaped frame. One end of the arc-shaped frame passes through the arc-shaped channel of the hole seat and abuts against the inner wall of the limiting hole on the surface of the connecting seat.

[0016] The surface of the arc-shaped frame is provided with an annular limiting ring, which abuts against the surface of the hole seat.

[0017] Specifically, the distance between the upper quick-connect mechanism and the center of the mounting plate is greater than the distance between the lower quick-connect mechanism and the center of the mounting plate.

[0018] Specifically, the inner cross surface of the cross ring frame is symmetrically provided with handles, and the handles are provided with rubber anti-slip sleeves.

[0019] Specifically, a bearing is fixedly sleeved on the outer side of the transmission shaft, the outer ring of the bearing is fixedly connected to the inner wall of the frame, and damping rings are symmetrically arranged on both sides of the bearing. The inner ring of the damping ring is interference-fitted with the outer side of the transmission shaft, and the outer ring is elastically abutting against the inner wall of the frame.

[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0021] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0022] 1. Improve production continuity and increase efficiency: The device is equipped with two sets of rollers, which are installed on the mounting plate through the upper quick-connect mechanism and the lower quick-connect mechanism respectively, and are diagonally staggered. When one set of rollers is unwound, the other set of rollers can be quickly switched to continue working by rotating the mounting plate without stopping the machine to replace them, which greatly reduces the downtime of operation and improves the overall processing efficiency.

[0023] 2. Simplified assembly and disassembly, reducing wear and tear: The upper and lower quick-connect mechanisms adopt U-shaped grooves, arc-shaped baffles, and elastic clamps to replace traditional bolt connections. When installing the roller, simply place the U-shaped seat into the U-shaped groove and push the arc-shaped baffle, and secure it with the second elastic clamp. Disassembly is done by reversing the operation, avoiding problems such as stripping and thread wear caused by repeated tightening of bolts. The operation is simple and reduces equipment wear.

[0024] 3. Enhanced operational safety and stability: The annular ratchet frame outside the cross ring frame engages unidirectionally with the pawl on the frame, which can effectively prevent reverse rotation due to inertia during roller switching and avoid device imbalance; at the same time, the conical extrusion groove cooperates with the first elastic chuck, combined with the damping ring on the transmission shaft, to slow down the rotation speed, accurately control the roller switching process, and reduce the risk of mechanical injury caused by its own weight and inertia.

[0025] 4. Reasonable structural design and strong stability: The distance between the upper quick-connect mechanism and the center of the mounting plate is greater than that of the lower quick-connect mechanism, making the center of gravity distribution more reasonable and reducing swaying during rotation switching; the annular limit ring on the arc frame abuts against the hole seat, further enhancing the stability of the roll after installation and ensuring a smooth unwinding process. Attached Figure Description

[0026] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0027] Figure 1 This is a schematic diagram of the structure of an aluminum foil bag production unwinding device according to the present invention;

[0028] Figure 2 This is a schematic diagram of the mounting plate structure in an aluminum foil bag production unwinding device according to the present invention;

[0029] Figure 3 This is a schematic diagram of the upper quick-connect mechanism in an aluminum foil bag production unwinding device according to the present invention.

[0030] Figure 4 This is a schematic diagram of the cross ring frame structure in an aluminum foil bag production unwinding device according to the present invention.

[0031] As shown in the figure:

[0032] 1. Frame; 11. Drive shaft; 2. Mounting plate; 21. Upper quick-connect mechanism; 22. Lower quick-connect mechanism; 3. Roller; 4. Cross ring frame; 41. Annular ratchet frame; 42. Pawl; 43. Conical extrusion groove; 44. First elastic chuck;

[0033] 211. Connecting seat; 212. U-shaped groove; 213. Arc-shaped limiting slide groove; 214. Arc-shaped baffle; 215. Second elastic clamp; 216. Notch; 217. Arc-shaped frame; 2171. Annular limiting ring; 31. U-shaped seat; 32. Hole seat; 100. Handle. Detailed Implementation

[0034] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Rather, the embodiments of the present invention include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0035] The following description, in conjunction with the accompanying drawings, describes an aluminum foil bag production unwinding device according to an embodiment of the present invention.

[0036] like Figures 1-4 As shown in the figure, an aluminum foil bag production unwinding device according to an embodiment of the present invention includes:

[0037] Frame 1: The inner wall is symmetrically and rotatably connected to the drive shaft 11;

[0038] Mounting plate 2: Symmetrically arranged on the inner wall of frame 1 and fixedly connected to the inner end of drive shaft 11. The surface of mounting plate 2 is provided with upper quick-connect mechanism 21 and lower quick-connect mechanism 22 in sequence along the vertical direction. The upper quick-connect mechanism 21 and lower quick-connect mechanism 22 are diagonally staggered on mounting plate 2.

[0039] Two sets of rollers 3: respectively detachably connected to the upper quick-connect mechanism 21 and the lower quick-connect mechanism 22 of the two sets of mounting plates 2;

[0040] Cross ring frame 4: Symmetrically arranged on the outer surface of frame 1 and fixedly connected to the outer end of drive shaft 11. A ring ratchet frame 41 is fixedly sleeved on the outer ring of the cross ring frame 4. A rotatable pawl 42 is provided on the outer surface of frame 1 corresponding to the position of the ring ratchet frame 41. The pawl 42 engages with the ring ratchet frame 41 in one direction. A conical extrusion groove 43 is uniformly and unidirectionally opened on the inner cross surface of the cross ring frame 4. A first elastic clamp 44 with a return spring is provided on the outer surface of frame 1 corresponding to the position of the conical extrusion groove 43. The end of the first elastic clamp 44 slides against the inner wall of the conical extrusion groove 43.

[0041] It should be noted that the first elastic clamp 44 described in this embodiment is provided in two sets. The positions of the two sets of first elastic clamp 44 are both within the range of the conical extrusion groove 43. The purpose of providing two sets of first elastic clamp 44 is mainly to provide support for the inner cross after the cross ring frame 4 has rotated, to share the pressure on the pawl 42, to avoid damage caused by excessive force on a single clamp, and to further improve the stability and structural durability of the positioning after the roller 3 is switched. In conjunction with the unidirectional meshing of the annular ratchet frame 41 and the pawl 42, the overall operational reliability of the device is enhanced.

[0042] It should also be noted that the number of first elastic clamps 44 can be increased according to actual usage needs, and they must be installed in a ring configuration. Multiple sets of first elastic clamps 44 cooperate with the conical extrusion grooves 43 of the cross ring frame 4. During rotation, through extrusion and reset action, combined with the damping ring on the transmission shaft rod 11, the rotation speed can be effectively reduced, achieving precise control of the switching process of the roller 3. This reduces the risk of mechanical injury caused by the weight and inertia of the roller 3 and improves operational safety.

[0043] Specifically, its working principle is as follows:

[0044] Installation and fixing of the roller 3: The central shaft end of the roller 3 is provided with a U-shaped seat 31. During installation, the U-shaped seat 31 is placed into the U-shaped groove 212 of the connecting seat 211 in the upper quick-connect mechanism 21 (or lower quick-connect mechanism 22). The arc-shaped baffle 214 is pushed to slide along the arc-shaped limiting groove 213 on the surface of the connecting seat 211 until it slides past the top of the U-shaped seat 31 and abuts against the limiting hole on the surface of the connecting seat 211, thereby limiting and fixing the U-shaped seat 31. The arc-shaped baffle 214 end The notch 216 of the part corresponds to the hole seat 32 at the top of the U-shaped seat 31. The arc-shaped frame 217 passes through the arc-shaped channel of the hole seat 32 and abuts against the limiting hole on the surface of the connecting seat 211, further limiting and fixing the U-shaped seat 31. The annular limiting ring 2171 abuts against the surface of the hole seat 32, further strengthening the limiting effect. At the same time, the second elastic clip 215 on the surface of the arc-shaped baffle 214 is inserted into the clip hole on the inner wall of the arc-shaped limiting slide groove 213, thereby fixing the arc-shaped baffle 214.

[0045] The switching process of the roll 3: When a set of rolls 3 has finished unwinding and needs to be switched, the handle 100 on the cross ring frame 4 drives the drive shaft 11 to rotate. The drive shaft 11 synchronously drives the mounting plate 2 and another set of rolls 3 to rotate. During the rotation, the annular ratchet frame 41 outside the cross ring frame 4 engages unidirectionally with the pawl 42 on the frame 1 to prevent reverse rotation due to inertia. The conical extrusion groove 43 of the cross inside the cross ring frame 4 slides against the first elastic clamp 44 on the frame 1. With the help of the damping ring on the drive shaft 11 (to slow down the rotation speed), smooth rotation is achieved. After rotating to the target position, the first elastic clamp 44 extends under the action of the return spring and supports the inner cross. Then, the inner push handle 100 fixes the position of the cross ring frame 4 and the mounting plate 2, completing the switching of the roll 3. At this time, the used roll 3 can be disassembled and replaced by the quick-connect mechanism without affecting the current unwinding operation, ensuring continuous production.

[0046] In one embodiment of this utility model, such as Figure 3 As shown, the upper quick-connect mechanism 21 and the lower quick-connect mechanism 22 have the same structure. The upper quick-connect mechanism 21 includes a connecting seat 211, which is fixedly connected to the surface of the mounting plate 2. A U-shaped groove 212 is provided on the top of the connecting seat 211. A U-shaped seat 31 is fixedly connected to the end of the central shaft of the roller 3 and is located inside the U-shaped groove 212. An arc-shaped limiting slide groove 213 is provided on the surface of the connecting seat 211, and an arc-shaped baffle 214 is slidably connected to the inner wall of the arc-shaped limiting slide groove 213. One end of the arc-shaped baffle 214 is slidably connected to the top of the U-shaped seat 31 and abuts against the inner wall of the limiting hole on the surface of the connecting seat 211. A second elastic clamp 215 is symmetrically arranged on the surface of the arc-shaped baffle 214 and is clamped and fixed with the clamp hole on the inner wall of the arc-shaped limiting slide groove 213.

[0047] It should be noted that the limiting hole described in this embodiment is not shown in the diagram.

[0048] It should also be noted that the internal space of the U-shaped groove 212 is adapted to the shape of the U-shaped seat 31.

[0049] Specifically, the central shaft end of the roller 3 is provided with a U-shaped seat 31. During installation, the U-shaped seat 31 is placed into the U-shaped groove 212 of the connecting seat 211 in the upper quick-connect mechanism 21 (or lower quick-connect mechanism 22), and the arc-shaped baffle 214 is pushed to slide along the arc-shaped limiting groove 213 on the surface of the connecting seat 211 until it slides past the top of the U-shaped seat 31 and abuts against the limiting hole on the surface of the connecting seat 211, thereby limiting and fixing the U-shaped seat 31. At the same time, the second elastic clip 215 on the surface of the arc-shaped baffle 214 is inserted into the clip hole on the inner wall of the arc-shaped limiting groove 213, thereby fixing the arc-shaped baffle 214.

[0050] In one embodiment of this utility model, such as Figure 3 As shown, the top of the U-shaped seat 31 is integrally formed with a hole seat 32, and the end of the arc-shaped baffle 214 is integrally formed with a notch 216, which corresponds to the position of the hole seat 32. The inner wall of the notch 216 is symmetrically provided with an arc-shaped frame 217. One end of the arc-shaped frame 217 passes through the arc-shaped channel of the hole seat 32 and abuts against the inner wall of the limiting hole on the surface of the connecting seat 211.

[0051] The surface of the arc-shaped frame 217 is provided with an annular limiting ring 2171, which abuts against the surface of the hole seat 32.

[0052] Specifically, the notch 216 at the end of the arc-shaped baffle 214 corresponds to the hole seat 32 at the top of the U-shaped seat 31, the arc-shaped frame 217 passes through the arc-shaped channel of the hole seat 32 and abuts against the limiting hole on the surface of the connecting seat 211, further realizing the limiting and fixing of the U-shaped seat 31, and the annular limiting ring 2171 abuts against the surface of the hole seat 32, further enhancing the limiting effect.

[0053] In one embodiment of this utility model, such as Figure 2 As shown, the distance between the upper quick-connect mechanism 21 and the center of the mounting plate 2 is greater than the distance between the lower quick-connect mechanism 22 and the center of the mounting plate 2.

[0054] Specifically, the distance between the upper quick-connect mechanism 21 and the center of the mounting plate 2 is greater than that between the lower quick-connect mechanism 22, making the center of gravity distribution more reasonable and allowing gravity to act on one side of the pawl 42 and the first elastic locking head 44, resulting in better performance.

[0055] In one embodiment of this utility model, such as Figure 1 As shown, handles 100 are symmetrically arranged on the inner cross surface of the cross ring frame 4, and rubber anti-slip sleeves are provided on the handles 100.

[0056] It should be noted that the handle 100 described in this embodiment is slidably connected to the cross ring frame 4. The handle 100 is provided with a positioning shaft, which is engaged and fixed with the positioning hole opened on the surface of the frame 1. By cooperating with the positioning shaft and the positioning hole, the positioning shaft can be inserted into the positioning hole by pushing the handle 100 inward after the rotation is completed, thereby fixing the cross ring frame 4.

[0057] Specifically, the rotary drive and positioning locking functions are integrated into the handle 100, allowing for switching and fixing without additional tools, reducing operation steps and improving efficiency. The mechanical cooperation between the positioning shaft and the positioning hole is more stable than simply relying on damping or friction positioning, ensuring the accuracy of the working position of the roll 3. The rubber anti-slip sleeve prevents hand slippage during operation, and the locking of the positioning shaft can prevent the cross ring frame 4 from rotating accidentally, reducing safety hazards during equipment operation. When it is necessary to rotate the cross ring frame 4 to switch the position of the roll 3, pull the handle 100 outward to disengage the positioning shaft from the positioning hole of the frame 1 and release the lock. At this time, the operator can hold the handle 100 to drive the cross ring frame 4 and the transmission shaft 11 to rotate, completing the position switching of the roll 3. After rotating to the target position, push the handle 100 inward to make the positioning shaft integrated in the handle 100 accurately insert into the positioning hole at the corresponding position on the surface of the frame 1. The shaft hole cooperation achieves rigid fixation of the cross ring frame 4, preventing it from rotating due to vibration or external force during unwinding.

[0058] In one embodiment of this utility model, such as Figure 1 As shown, a bearing is fixedly sleeved on the outer side of the transmission shaft 11. The outer ring of the bearing is fixedly connected to the inner wall of the frame 1. Damping rings are symmetrically arranged on both sides of the bearing. The inner ring of the damping ring is interference-fitted with the outer side of the transmission shaft 11, and the outer ring is elastically abutted against the inner wall of the frame 1.

[0059] Specifically, the bearing ensures smooth rotation of the drive shaft 11 and avoids jamming. The damping ring reduces the inertial rotation of the drive shaft 11 caused by the weight of the roller 3 through controllable frictional resistance, preventing the roller 3 from swinging rapidly during switching, solving the problem of difficulty in manual control, and enhancing safety. The elastic contact design of the damping ring can dynamically adjust the damping force according to the rotation speed (the faster the speed, the greater the frictional resistance), achieving a uniform buffering effect and reducing the risk of equipment damage or personnel injury caused by imbalance.

[0060] In summary, the aluminum foil bag production unwinding device of this utility model has a reasonable structure. It achieves non-stop switching by diagonally staggering two sets of rollers 3, which improves efficiency. The quick-connect mechanism simplifies the disassembly and assembly of the rollers 3 and avoids bolt wear. The annular ratchet frame 41 and pawl 42 prevent reverse rotation. The conical extrusion groove 43, elastic clamp and damping ring control the speed and enhance safety. The large spacing of the upper quick-connect mechanism 21 optimizes the center of gravity and improves stability.

[0061] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An unwinding device for producing aluminum foil bags, characterized in that, include: The frame (1) has a drive shaft (11) symmetrically rotated on its inner wall; Mounting plate (2): Symmetrically arranged on the inner wall of the frame (1) and fixedly connected to the inner end of the transmission shaft (11). The surface of the mounting plate (2) is provided with an upper quick-connect mechanism (21) and a lower quick-connect mechanism (22) in sequence along the vertical direction. The upper quick-connect mechanism (21) and the lower quick-connect mechanism (22) are diagonally staggered on the mounting plate (2). Two sets of rollers (3): respectively detachably connected to the upper quick-connect mechanism (21) and the lower quick-connect mechanism (22) of the two sets of mounting discs (2); Cross ring frame (4): Symmetrically arranged on the outer surface of the frame (1) and fixedly connected to the outer end of the transmission shaft (11). A ring ratchet frame (41) is fixedly sleeved on the outer ring frame of the cross ring frame (4). A rotatable pawl (42) is provided on the outer surface of the frame (1) corresponding to the position of the ring ratchet frame (41). The pawl (42) meshes with the ring ratchet frame (41) in one direction. A conical extrusion groove (43) is uniformly and unidirectionally opened on the inner cross surface of the cross ring frame (4). A first elastic clamp (44) with a return spring is provided on the outer surface of the frame (1) corresponding to the position of the conical extrusion groove (43). The end of the first elastic clamp (44) slides against the inner wall of the conical extrusion groove (43).

2. The aluminum foil bag production unwinding device according to claim 1, characterized in that, The upper quick-connect mechanism (21) and the lower quick-connect mechanism (22) have the same structure. The upper quick-connect mechanism (21) includes a connecting seat (211), which is fixedly connected to the surface of the mounting plate (2). A U-shaped groove (212) is provided on the top of the connecting seat (211). A U-shaped seat (31) is fixedly connected to the end of the central shaft of the roller (3) and is located inside the U-shaped groove (212). The surface of the connecting seat (211) has openings. There is an arc-shaped limiting groove (213), and an arc-shaped baffle (214) is slidably connected to the inner wall of the arc-shaped limiting groove (213). One end of the arc-shaped baffle (214) is slidably connected to the top of the U-shaped seat (31) and abuts against the inner wall of the limiting hole on the surface of the connecting seat (211). A second elastic clamp (215) is symmetrically arranged on the surface of the arc-shaped baffle (214) and is clamped and fixed with the clamp hole on the inner wall of the arc-shaped limiting groove (213).

3. The aluminum foil bag production unwinding device according to claim 2, characterized in that, The top of the U-shaped seat (31) is integrally formed with a hole seat (32), and the end of the arc-shaped baffle (214) is integrally formed with a notch (216) corresponding to the position of the hole seat (32). The inner wall of the notch (216) is symmetrically provided with an arc-shaped frame (217). One end of the arc-shaped frame (217) passes through the arc-shaped channel of the hole seat (32) and abuts against the inner wall of the limiting hole on the surface of the connecting seat (211). The surface of the arc-shaped frame (217) is provided with an annular limiting ring (2171), which abuts against the surface of the hole seat (32).

4. The aluminum foil bag production unwinding device according to claim 1, characterized in that, The distance between the upper quick-connect mechanism (21) and the center of the mounting plate (2) is greater than the distance between the lower quick-connect mechanism (22) and the center of the mounting plate (2).

5. The aluminum foil bag production unwinding device according to claim 1, characterized in that, The inner cross surface of the cross ring frame (4) is symmetrically provided with handles (100), and the handles (100) are provided with rubber anti-slip sleeves.

6. The aluminum foil bag production unwinding device according to claim 1, characterized in that, A bearing is fixedly sleeved on the outer side of the transmission shaft (11). The outer ring of the bearing is fixedly connected to the inner wall of the frame (1). Damping rings are symmetrically arranged on both sides of the bearing. The inner ring of the damping ring is interference-fitted with the outer side of the transmission shaft (11), and the outer ring is elastically abutted against the inner wall of the frame (1).

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