Winding mechanism for food packaging bag processing

Abstract

The utility model discloses a winding mechanism for food packaging bag processing. The winding mechanism comprises a plurality of winding rollers. The objective table is arranged on the bottom side of the wind-up roller and makes contact with the peripheral wall of the wind-up roller, a support is fixedly arranged on the top side of the objective table, a plurality of rectangular rods are arranged between the support and the wind-up roller, the interior of the wind-up roller is hollow, and the open end of the wind-up roller is rotationally connected with the inner walls of mounting holes of the rectangular rods through bearings; and a motor is fixedly arranged in the mounting hole of the rectangular rod through a connecting rod. When the improved winding mechanism for food packaging bag processing is used, reciprocating switching of the winding rollers can be automatically completed, winding of a plurality of food packaging bags can be continuously completed without shutdown, discharging of the wound food packaging bags cannot be affected, meanwhile, connection of the switched winding rollers and the ends of the food packaging bags is automatically completed in sequence, and the winding efficiency is improved. And the winding efficiency of the food packaging bag is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of food packaging bag winding devices, and in particular to a winding mechanism for processing food packaging bags. Background Technology

[0002] Food packaging bags are a type of packaging design primarily used for packaging and protecting food. They are typically made of food-grade plastic film with two or more layers of composite materials to ensure food safety and hygiene. Some food packaging bags are produced in strip form, and several bags are usually rolled into a roll using a winding device for convenient transportation.

[0003] When using existing food packaging bag winding devices, the winding operation of food packaging bags is generally completed by a single winding roller. After the food packaging bag is wound up, it is generally necessary to stop the operation of the device to replace the winding roller or to complete the unloading operation of the food packaging bag roll before the winding of food packaging bags can continue. This reduces the winding efficiency of food packaging bags. In addition, the connection between the food packaging bag and the winding roller also needs to be completed manually by the operator, which further reduces the winding efficiency of food packaging bags. Utility Model Content

[0004] The purpose of this utility model is to provide a winding mechanism for processing food packaging bags, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a winding mechanism for processing food packaging bags, comprising a plurality of winding rollers;

[0006] Also includes:

[0007] A platform is provided on the bottom side of the take-up roller and in contact with the outer peripheral wall of the take-up roller. A bracket is fixedly installed on the top side of the platform. Several rectangular rods are provided between the bracket and the take-up roller. The inside of the take-up roller is hollow, and the open end of the take-up roller is rotatably connected to the inner wall of the mounting hole of the rectangular rod through a bearing. A motor is fixedly installed in the mounting hole of the rectangular rod through a connecting rod.

[0008] The impeller is fixedly installed in the opening of the take-up roller by several support rods, and the drive end of the motor is fixedly connected to the impeller. Several adsorption holes are arranged in a circular array on the outer peripheral wall of the take-up roller.

[0009] Several rectangular slots are formed on the top side of the stage, and the bottom of the rectangular rod is inserted into the corresponding rectangular slot and contacts the inner wall of the corresponding rectangular slot.

[0010] Preferably, an exhaust hole is provided on the side wall of the platform at the position corresponding to the rectangular groove, and the interior of the exhaust hole communicates with the interior of the corresponding rectangular groove. The exhaust hole is located below the rectangular rod.

[0011] Preferably, the bracket and several rectangular rods are provided with a limiting mechanism for constraining and limiting the rectangular rods;

[0012] The limiting mechanism includes several square rods, which are fixedly installed on the top side of the corresponding rectangular rods, and several of their corners are arc-shaped. The side wall of the square rods is provided with positioning grooves, and the bracket is provided with square grooves at the positions corresponding to the positioning grooves. The bracket is provided with a locking component.

[0013] Preferably, the engaging component includes several positioning rods. A storage groove is formed on the inner wall of the square groove, and the positioning rod is slidably installed in the corresponding storage groove. One end of the positioning rod is inclined and inserted into the corresponding square groove. A piston plate is fixedly installed at the other end of the positioning rod, and the outer peripheral wall of the piston plate is in contact with the inner wall of the corresponding storage groove. A spring is provided between the piston plate and the inner wall of the corresponding storage groove, and the two ends of the spring are fixedly connected to the corresponding piston plate and the inner wall of the corresponding storage groove, respectively.

[0014] Preferably, the bracket has several connecting holes, and the two ends of each connecting hole are respectively connected to the interior of the corresponding square groove and the interior of the corresponding air storage groove. The end of the connecting hole near the corresponding positioning rod is located on the outer periphery of the corresponding positioning rod.

[0015] Preferably, a soft ring is provided at the position corresponding to the opening end of the square groove inside the bracket, and the inner wall of the soft ring is coplanar with the inner side wall of the corresponding square groove.

[0016] This utility model has the following beneficial effects:

[0017] When in use, this improved winding mechanism for food packaging bags can automatically switch the take-up rollers back and forth, continuously winding several food packaging bags without stopping the machine, and without affecting the unloading of the food packaging bags after winding. At the same time, it automatically and sequentially connects the switched take-up rollers to the end of the food packaging belt, improving the winding efficiency of food packaging bags. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1This is a perspective view of the overall structure of this utility model;

[0020] Figure 2 This is a perspective view of the internal structure of the winding roller and rectangular bar of this utility model.

[0021] Figure 3 This is a perspective view of the internal structure of the platform of this utility model;

[0022] Figure 4 This is a perspective view of the internal structure of the bracket of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged view of the structure at point A in the middle;

[0024] Figure 6 This is a top view of the internal structure of the bracket of this utility model.

[0025] In the diagram: 1. Rewinding roller; 2. Platform; 3. Limiting mechanism; 31. Square rod; 32. Square groove; 33. Positioning groove; 4. Clamping part; 41. Storage groove; 42. Positioning rod; 43. Piston plate; 44. Spring; 45. Connecting hole; 46. Soft ring; 5. Bracket; 6. Rectangular rod; 7. Motor; 8. Impeller; 9. Adsorption hole; 10. Rectangular groove; 11. Exhaust hole. Detailed Implementation

[0026] To make the technical solution and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] This utility model provides a technical solution: (Refer to...) Figure 1 - Figure 5 The present invention discloses a winding mechanism for processing food packaging bags, comprising a plurality of winding rollers 1;

[0028] Also includes:

[0029] The platform 2 is located on the bottom side of the take-up roller 1 and contacts the outer peripheral wall of the take-up roller 1. A bracket 5 is fixedly installed on the top side of the platform 2. Several rectangular rods 6 are provided between the bracket 5 and the take-up roller 1. The inside of the take-up roller 1 is hollow. The open end of the take-up roller 1 is rotatably connected to the inner wall of the mounting hole of the rectangular rod 6 through a bearing. A motor 7 is fixedly installed in the mounting hole of the rectangular rod 6 through a connecting rod.

[0030] Impeller 8 is fixedly installed in the opening of take-up roller 1 by several support rods, and the drive end of motor 7 is fixedly connected to impeller 8. Several adsorption holes 9 are arranged in a circular array on the outer peripheral wall of take-up roller 1.

[0031] Several rectangular slots 10 are formed on the top side of the platform 2, and the bottom of the rectangular rod 6 is inserted into the corresponding rectangular slot 10 and contacts the inner wall of the corresponding rectangular slot 10.

[0032] In this embodiment, when using the improved winding mechanism for food packaging bag processing, please refer to... Figure 1 and Figure 2 As shown, firstly, the motor 7 starts to drive the take-up roller 1 and the impeller 8 to rotate at a constant speed (the motor 7 and the inner wall of the mounting hole of the rectangular rod 6 are in clearance fit). The rotating impeller 8 continuously pushes the gas in the take-up roller 1 out of the take-up roller 1. Then the airflow passes through the gap between the motor 7 and the inner wall of the mounting hole and passes through the mounting hole to be discharged to the outside. At the same time, the outside gas flows into the take-up roller 1 through the adsorption hole 9 to replenish the gas lost in the take-up roller 1. Since the amount of gas flowing into the adsorption hole 9 is limited, a negative pressure chamber is formed in the adsorption hole 9.

[0033] After the device is started, the end of the food packaging bag is pushed onto the platform 2 and slid through the external food packaging bag conveying equipment. Then, the end of the food packaging bag is pushed between the first winding roller 1 and the platform. As the winding roller 1 rotates, due to the friction between the winding roller 1 and the food packaging bag, the winding roller 1 rolls to the top side of the food packaging bag, so that its end is gradually inserted between the winding roller 1 and the platform 2. When the suction hole 9 is attached to the food packaging bag, the negative pressure chamber inside the winding roller 1 adsorbs and fixes the end of the food packaging bag. The food packaging bag is adsorbed and fixed on the outer periphery of the winding roller 1. Then, as the winding roller 1 rotates, the food packaging bag is gradually wound and rolled up on the winding roller 1.

[0034] Please refer to Figure 1 - Figure 3 As shown, as the number of food packaging bags on the take-up roller 1 increases, the overall diameter of the take-up roller 1 and its outer food packaging bag increases, the take-up roller 1 gradually moves upward, and due to the mutual contact between the rectangular rod 6 and the inner wall of the rectangular groove 10, the take-up roller 1 moves along a linear trajectory, which will not cause a positional shift between the food packaging bag and the take-up roller 1.

[0035] After the first section of the food packaging bag is wound up, due to the food packaging bag blocking the suction hole 9 on the first winding roller 1, the rotating first winding roller 1 will not continue to wind the second section of the food packaging bag onto the first winding roller 1. Subsequently, after the end of the second section of the food packaging bag is pushed between the first winding roller 1 and the platform 2, due to the friction between the food packaging bag on the first winding roller 1 and the end of the second section of the food packaging bag, as the first winding roller 1 rotates, the end of the second section of the food packaging bag passes between the first winding roller 1 and the platform 2 and moves to the space between the second winding roller 1 and the platform 2. As described above, the end of the second section of the food packaging bag is attracted to the outer wall of the second winding roller 1, and the second section of the food packaging bag is then... The food packaging bag film roll is then removed from the first winding roller 1 and wound onto the second winding roller 1. During this process, the motor 7 on the first winding roller 1 is stopped, and the first winding roller 1 is lifted by a rectangular plate. The food packaging bag film roll on the first winding roller 1 is then removed, thus completing the disassembly of the food packaging bag film roll on the winding roller 1. After the second section of the food packaging bag is wound up, the end of the third section of the food packaging bag is pushed back between the first winding roller 1 and the platform 2. The third section of the food packaging bag is then wound onto the first winding roller 1 as described above. This process is repeated to continuously complete the winding operation of the food packaging bag without the device needing to stop operating. At the same time, the connection between the end of the food packaging bag and the winding roller 1 is automatically completed, improving the winding efficiency of the food packaging bag.

[0036] In a further preferred embodiment of this utility model, such as Figure 3 As shown, an exhaust hole 11 is provided on the side wall of the platform 2 at the position corresponding to the rectangular groove 10, and the interior of the exhaust hole 11 is connected to the interior of the corresponding rectangular groove 10. The exhaust hole 11 is located below the rectangular rod 6.

[0037] In this embodiment, please refer to Figure 3 As shown, during the process of the rectangular rod 6 slowly moving upward, the external gas flows into the rectangular groove 10 through the exhaust hole 11, thereby avoiding the formation of a negative pressure cavity in the rectangular groove 10 and affecting the upward sliding of the rectangular rod 6 in the rectangular groove 10.

[0038] When the rectangular plate slides rapidly downward within the rectangular groove 10, a high-pressure chamber is formed within the rectangular groove 10 due to the limited amount of gas discharged from the exhaust hole 11. This chamber continuously applies an upward thrust to the rectangular plate, thereby slowing down its downward movement. Subsequently, as excess air is gradually discharged from the rectangular groove 10, the winding roller 1 slowly moves downward to its reset position, preventing a strong collision between the downward-moving winding roller 1 and the platform 2 or the food packaging bag, which could affect the operation of the device.

[0039] In a further preferred embodiment of this utility model, such as Figure 1 , Figure 4 and Figure 5As shown, a limiting mechanism 3 is provided on the bracket 5 and several rectangular rods 6 together for constraining and limiting the rectangular rods 6;

[0040] The limiting mechanism 3 includes several square rods 31, which are fixedly installed on the top side of the corresponding rectangular rod 6, and several of its corners are arc-shaped. The side wall of the square rod 31 is provided with a positioning groove 33, and the bracket 5 is provided with a square groove 32 at the position corresponding to the positioning groove 33. The bracket 5 is provided with a locking part 4.

[0041] In this embodiment, please refer to Figure 4 and Figure 5 As shown, during the upward movement of the rectangular rod 6, the square rod 31 is gradually inserted into the square groove 32. After the food packaging bag is wound up, the operator pushes the winding roller 1 upward through the rectangular rod 6, so that the square rod 31 is fully inserted into the square groove 32. At this time, the locking piece 4 moves and inserts into the positioning groove 33, thereby applying a constraint positioning state to the square rod 31, so that the winding roller 1 can stably maintain the corresponding height, and the wound food packaging strip on the winding roller is separated from the sliding food packaging strip on the platform 2, which makes it convenient for the operator to remove the wound food packaging bag from the winding roller 1.

[0042] In a further preferred embodiment of this utility model, such as Figure 5 As shown, the engaging component 4 includes several positioning rods 42. A storage groove 41 is provided on the inner wall of the square groove 32, and the positioning rods 42 are slidably installed in the corresponding storage grooves 41. One end of the positioning rod 42 is inclined and inserted into the corresponding square groove 32. The other end of the positioning rod 42 is fixedly installed with a piston plate 43, and the outer peripheral wall of the piston plate 43 is in contact with the inner wall of the corresponding storage groove 41. A spring 44 is provided between the piston plate 43 and the inner wall of the corresponding storage groove 41, and the two ends of the spring 44 are fixedly connected to the corresponding piston plate 43 and the inner wall of the corresponding storage groove 41, respectively.

[0043] In this embodiment, please refer to Figure 1 , Figure 4 and Figure 5 As shown, during the process of the square rod 31 being fully inserted into the square groove 32, due to the mutual contact between the arc surface at the top of the square rod 31 and the inclined surface at the bottom of the positioning rod 42, the positioning rod 42 can be gradually squeezed into the storage groove 41 along the inclined surface of the positioning rod 42 without affecting the insertion of the square rod 31 into the square groove 32. After the square rod 31 is fully inserted into the square groove 32, due to the push of the piston plate 43 by the spring 44, the positioning rod 42 is automatically inserted into the positioning groove 33. At this time, due to the mutual contact between the fixed measuring plane of the positioning rod 42 and the inner wall of the top side of the positioning groove 33, the square rod 31 is constrained and limited to the square groove 32, thereby applying a constrained positioning state to the rectangular rod 6. The device has a high degree of automation.

[0044] In a further preferred embodiment of this utility model, such as Figure 6As shown, the bracket 5 has several connecting holes 45 that are opened opposite each other, and the two ends of each connecting hole 45 are respectively connected to the inside of the corresponding square groove 32 and the inside of the corresponding gas storage groove. The end of the connecting hole 45 near the corresponding positioning rod 42 is located on the outer periphery of the corresponding positioning rod 42.

[0045] In this embodiment, please refer to Figure 4 - Figure 6 As shown, during the process of inserting the square rod 31 into the square groove 32, some of the gas in the corresponding square groove 32 can be pushed into the connecting hole 45 and introduced into the corresponding storage tank 41 through the connecting hole 45. This creates a high-pressure chamber in the storage tank 41 located on the outer periphery of the positioning rod 42, thereby applying a corresponding thrust to the piston plate 43 to counteract the thrust of the spring 44 on the piston plate 43. This causes the positioning rod 42 to gradually slide out of the positioning groove 33, automatically releasing the constraint and limiting state of the corresponding rectangular rod 6. The device has a high degree of automation.

[0046] In a further preferred embodiment of this utility model, such as Figure 5 As shown, a soft ring 46 is provided at the position corresponding to the opening end of the square groove 32 inside the bracket 5, and the inner wall of the soft ring 46 is coplanar with the inner side wall of the corresponding square groove 32.

[0047] In this embodiment, please refer to Figure 4 and Figure 5 As shown, during the process of inserting the square rod 31 into the square groove 32, the deformation of the soft ring 46 can cause the inner ring wall of the soft ring 46 to fit tightly against the outer wall of the square rod 31, thereby sealing the gap between the square rod 31 and the inner wall of the square groove 32. This prevents some of the gas in the square groove 32 from flowing out through the gap between the square rod 31 and the inner wall of the square groove 32 during the process of inserting the square rod 31 into the square groove 32, thus affecting the operation of the device.

[0048] Working principle: When this improved food packaging bag processing winding mechanism is used, the motor 7 first starts to drive the winding roller 1 and the impeller 8 to rotate at a constant speed. The rotating impeller 8 continuously pushes the gas in the winding roller 1 out of the winding roller 1. Then the airflow passes through the gap between the motor 7 and the inner wall of the mounting hole and is discharged to the outside through the mounting hole. At the same time, the outside gas flows into the winding roller 1 through the adsorption hole 9 to replenish the gas lost in the winding roller 1. Since the amount of gas flowing into the adsorption hole 9 is limited, a negative pressure chamber is formed in the adsorption hole 9.

[0049] After the device is started, the end of the food packaging bag is pushed onto the platform 2 and slid through the external food packaging bag conveying equipment. Then, the end of the food packaging bag is pushed between the first winding roller 1 and the platform. As the winding roller 1 rotates, due to the friction between the winding roller 1 and the food packaging bag, the winding roller 1 rolls to the top side of the food packaging bag, so that the end of the food packaging bag is gradually inserted between the winding roller 1 and the platform 2. After the suction hole 9 is attached to the food packaging bag, the food packaging bag is attracted and fixed to the end of the food packaging bag by the negative pressure chamber inside the winding roller 1. Then, as the winding roller 1 rotates, the food packaging bag is gradually wound and rolled up on the first winding roller 1.

[0050] As the number of food packaging bags on the first take-up roller 1 increases, the overall diameter of the first take-up roller 1 and its outer food packaging bag increases, thereby causing the first take-up roller 1 to gradually move upward. Due to the mutual contact between the rectangular rod 6 and the inner wall of the rectangular groove 10, the take-up roller 1 moves in a linear trajectory. At the same time, outside air flows into the rectangular groove 10 through the exhaust hole 11, filling the expanded space inside the rectangular groove 10.

[0051] After the first section of the food packaging bag is wound up, the food packaging bag blocks the suction hole 9 on the first winding roller 1, so the rotating first winding roller 1 will not continue to wind the second section of the food packaging bag onto the first winding roller 1. Then, after the end of the second section of the food packaging bag is pushed between the first winding roller 1 and the platform 2, due to the friction between the food packaging bag on the first winding roller 1 and the end of the second section of the food packaging bag, as the first winding roller 1 rotates, the end of the second section of the food packaging bag passes between the first winding roller 1 and the platform 2 and moves to the second winding roller 1 and the platform 2. According to the above, the end of the second section of the food packaging bag is attracted to the outer wall of the second winding roller 1, and the second section of the food packaging bag is wound onto the second winding roller 1. During this process, the operator pushes the food packaging bag film roll on the first winding roller 1 upward through the rectangular rod 6 to separate it from the second section of the food packaging bag.

[0052] During the upward movement of the rectangular rod 6, the square rod 31 will be driven to gradually insert into the square groove 32. Due to the mutual contact between the arc surface at the top of the square rod 31 and the inclined surface at the bottom of the positioning rod 42, the positioning rod 42 can be gradually squeezed into the storage groove 41 along the inclined surface of the positioning rod 42 without affecting the insertion of the square rod 31 into the square groove 32. After the square rod 31 is fully inserted into the square groove 32, the positioning rod 42 will automatically insert into the positioning groove 33 due to the push of the piston plate 43 by the spring 44. At this time, due to the mutual contact between the fixed measuring plane of the positioning rod 42 and the inner wall of the top side of the positioning groove 33, the square rod 31 will be constrained and limited to the square groove 32, thereby applying a constrained positioning state to the rectangular rod 6, so that the first winding roller 1 can stably maintain the corresponding height. At this time, the operation of the motor 7 on the first winding roller 1 is stopped, and then the food packaging bag film roll on the first winding roller 1 is removed, thus completing the disassembly of the food packaging bag film roll on the winding roller 1.

[0053] When the second section of the food packaging bag is wound onto the second take-up roller 1, the square rod 31 can be gradually inserted into the square groove 32, thereby pushing some of the gas in the square groove 32 into the connecting hole 45, and then guiding it into the storage groove 41 at the position of the first take-up roller 1 through the connecting hole 45. This creates a high-pressure chamber in the storage groove 41 located on the outer periphery of the positioning rod 42, which in turn applies a corresponding thrust to the piston plate 43 to counteract the thrust of the spring 44 on the piston plate 43. This causes the positioning rod 42 to gradually slide out of the positioning groove 33, automatically releasing the constraint of the corresponding rectangular rod 6. In the limit position, due to the gravity of the first take-up roller 1 and the rectangular rod 6, the rectangular rod 6 on the first take-up roller 1 quickly moves down to reset and retracts into the rectangular groove 10. Since the amount of gas discharged from the exhaust hole 11 is limited, a high-pressure chamber can be formed in the rectangular groove 10, which continuously applies an upward thrust to the rectangular plate to slow down the downward movement rate of the rectangular plate. After the excess air in the rectangular groove 10 is gradually discharged, the first take-up roller 1 slowly falls onto the second section of the food packaging bag. As the first take-up roller 1 rolls, it will not affect the winding operation of the second section of the food packaging bag.

[0054] After the second section of the food packaging bag is wound up, the end of the third section of the food packaging bag will be pushed back between the first winding roller 1 and the platform 2. The third section of the food packaging bag is wound onto the first winding roller 1 as described above. During the winding process of the third section of the food packaging bag, the air in the high-pressure chamber on the outer periphery of the positioning rod 42 flows out through the gap between the positioning rod 42 and the inner wall of the storage tank 41, so that the positioning rod 42 can normally complete the positioning constraint of the second winding roller 1. By repeating the above process, the winding operation of the food packaging bag can be continuously completed.

[0055] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A winding mechanism for food packaging bag processing, comprising a plurality of winding rollers (1); characterized in that Further comprising: a carrier table (2) arranged on the bottom side of the winding roller (1) and in contact with the outer peripheral wall of the winding roller (1), the top side of the carrier table (2) is fixedly provided with a support (5), a plurality of rectangular rods (6) are arranged between the support (5) and the winding roller (1), the inside of the winding roller (1) is hollow, and the opening end of the winding roller (1) is rotatably connected with the inner wall of the mounting hole of the rectangular rod (6) through a bearing, and a motor (7) is fixedly arranged in the mounting hole of the rectangular rod (6) through a connecting rod; a impeller (8) is fixedly arranged in the opening of the winding roller (1) through a plurality of supporting rods, and the driving end of the motor (7) is fixedly connected with the impeller (8), and a plurality of adsorption holes (9) are arranged in a circumferential array on the outer peripheral wall of the winding roller (1); a plurality of rectangular grooves (10) are arranged on the top side of the carrier table (2), and the bottom of the rectangular rod (6) is inserted into the corresponding rectangular groove (10) and in contact with the inner wall of the corresponding rectangular groove (10).

2. The winding mechanism for processing food packaging bags according to claim 1, characterized in that: An exhaust hole (11) is arranged on the side wall of the carrier table (2) at the position corresponding to the rectangular groove (10), and the inside of the exhaust hole (11) is communicated with the inside of the corresponding rectangular groove (10), and the exhaust hole (11) is located below the rectangular rod (6).

3. The winding mechanism for processing food packaging bags according to claim 2, characterized in that: A limiting mechanism (3) is arranged on the support (5) and the plurality of rectangular rods (6) for limiting the rectangular rod (6); The limiting mechanism (3) comprises a plurality of square rods (31) fixedly arranged on the top side of the corresponding rectangular rod (6), and the edges of the square rod (31) are arc-shaped, a positioning groove (33) is arranged on the side wall of the square rod (31), a square groove (32) is arranged on the support (5) at the position corresponding to the positioning groove (33), and a clamping piece (4) is arranged in the support (5).

4. The winding mechanism for processing food packaging bags according to claim 3, characterized in that: The clamping piece (4) comprises a plurality of positioning rods (42), a storage groove (41) is arranged on the inner wall of the square groove (32), and the positioning rod (42) is slidably arranged in the corresponding storage groove (41), one end of the positioning rod (42) is inclined and inserted into the corresponding square groove (32), the other end of the positioning rod (42) is fixedly provided with a piston plate (43), and the outer peripheral wall of the piston plate (43) is in contact with the inner wall of the corresponding storage groove (41), a spring (44) is arranged between the piston plate (43) and the inner wall of the corresponding storage groove (41), and the two ends of the spring (44) are fixedly connected with the corresponding piston plate (43) and the inner wall of the corresponding storage groove (41) respectively.

5. The winding mechanism for processing food packaging bags according to claim 4, characterized in that: A plurality of connecting holes (45) are oppositely arranged in the support (5), and the openings of the two ends of each connecting hole (45) are respectively communicated with the inside of the corresponding square groove (32) and the inside of the corresponding storage groove (41), and one end of the connecting hole (45) close to the corresponding positioning rod (42) is located on the outer peripheral side of the corresponding positioning rod (42).

6. The winding mechanism for processing food packaging bags according to claim 5, characterized in that: A soft ring (46) is arranged on the support (5) at the position corresponding to the opening end of the square groove (32), and the inner wall of the soft ring (46) is coplanar with the inner wall of the corresponding square groove (32).

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