A cutting mechanism for food packaging bag processing

Abstract

The utility model relates to the field of food packaging bag processing discloses a kind of cutting mechanism for food packaging bag processing, including two limit plates, two The limit plate is set in the top of base, two The first recess is opened in the front side of limit plate, first electric push rod telescopic link is passed through U-shaped frame, and is fixed with cutting knife, the top surface of base is fixed with support, the inside of support is fixed with first guide rail, the slider of first guide rail is fixed with moving box.In the utility model, through the cooperative action of limit plate, base, first recess, second recess, U-shaped frame, first electric push rod, cutting knife, support, first guide rail, moving box, second guide rail, connecting box, clamping plate, second electric push rod and PLC controller, the continuous cutting of food packaging bag is realized, compared with only through single stretching piece to stretch, cut food packaging bag, can reduce idle time, improve cutting efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of food packaging bag processing, specifically a cutting mechanism for food packaging bag processing. Background Technology

[0002] Food packaging bags are a type of packaging design. In daily life, to facilitate the preservation and storage of food, product packaging bags have emerged. Food packaging bags refer to thin-film containers that come into direct contact with food and are used to hold and protect it. They can be divided into ordinary food packaging bags, vacuum food packaging bags, gas-filled food packaging bags, boilable food packaging bags, retort pouches, and functional food packaging bags. During the processing of food packaging bags, the produced bags are typically wound onto rollers and then cut into single or multiple connected pieces using a cutting device.

[0003] The technical features of the Chinese patent announcement CN221022588U, which discloses a food packaging bag production cutting device, are as follows: it includes a packaging bag placement roller for winding up the food packaging bag, and a cutting component. The cutting component is installed on one side of an auxiliary cutting component, and a stretching component is installed on the other side of the cutting component. The auxiliary cutting component and the stretching component are correspondingly arranged with the packaging bag placement roller. The bottom two sides of the stretching component are connected to the two sides of the auxiliary cutting component through a moving component.

[0004] In the above solution, the packaging bag is positioned by an auxiliary cutting component. Then, the upper and lower clamping plates are moved to the auxiliary cutting component by a second motor and lead screw, and the packaging bag is clamped. After stretching, it is finally cut by a cutting blade. This has the following disadvantages: the packaging bag is stretched and cut by a single stretching component. After cutting, it needs to be moved, clamped, and stretched again, which prolongs the idle time and reduces the cutting efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a cutting mechanism for food packaging bag processing, in order to solve the problem that after stretching and cutting the packaging bag using a single stretching member, it is necessary to move, clamp, and stretch it again after cutting, which prolongs the idle time and leads to a decrease in cutting efficiency.

[0006] To achieve the aforementioned utility model objectives, the present utility model adopts the following technical solution: a cutting mechanism for processing food packaging bags, comprising two limiting plates, both of which are disposed above a base. Two first grooves are formed on the front side of each limiting plate, and second grooves are formed on the left and right sides of each limiting plate. A U-shaped frame is provided above the base, and a first electric push rod is fixed to the top surface of the U-shaped frame. The telescopic rod of the first electric push rod passes through the U-shaped frame and is fixed with a cutting blade. A bracket is fixed to the top surface of the base, and a first guide rail is fixed inside the bracket. The slider of the first guide rail is fixed with a movable box. The top surface of the base is fixed with two second guide rails. The sliders of the two second guide rails are fixed with connecting boxes. The interior of the two connecting boxes and the movable box is provided with two clamping plates. The two clamping plates below are fixed inside the movable box and the connecting box respectively. The top surface of the two connecting boxes and the movable box is fixed with a second electric push rod. Several telescopic rods of the second electric push rods pass through the movable box and the connecting box and are fixedly connected to several clamping plates above. The clamping plates and the second electric push rods on the movable box are two sets. A PLC controller is fixed on the base.

[0007] Preferably, a packaging bag paper feeding roller is provided above the base, two support plates are fixed on the top surface of the base, the lower limiting plate is fixed between the two support plates, the upper limiting plate is movably arranged between the two support plates, the U-shaped frame is fixed between the two support plates, two third electric push rods are fixed on the top surface of the base, a knife holder is fixed between the telescopic rods of the two third electric push rods, and the third electric push rods are electrically connected to the PLC controller.

[0008] Preferably, anti-slip pads are fixed to the inner sides of several of the clamps.

[0009] Preferably, the top surface of the U-shaped frame has two limiting holes, and limiting posts are slidably inserted into the two limiting holes, and the two limiting posts are respectively fixed to the top surface of the cutting blade.

[0010] Preferably, a fixing plate is fixed to the inner side of each of the two support plates, and a fourth electric push rod is fixed to the bottom surface of each of the two fixing plates. One end of the telescopic rod of each of the two fourth electric push rods is fixedly connected to the upper limiting plate, and the fourth electric push rod is electrically connected to the PLC controller.

[0011] Preferably, the inner sides of both limiting plates are provided with sliding grooves, and the left and right sides of the upper limiting plate are fixed with sliding blocks, and the two sliding blocks are respectively slidably arranged in the two sliding grooves.

[0012] Compared with the prior art, the cutting mechanism for food packaging bag processing that adopts the above technical solution has the following beneficial effects:

[0013] 1. In use, through the coordinated action of the limiting plate, base, first groove, second groove, U-shaped frame, first electric push rod, cutting blade, bracket, first guide rail, moving box, second guide rail, connecting box, clamping plate, second electric push rod and PLC controller, continuous cutting of food packaging bags is achieved. Compared with stretching and cutting food packaging bags by a single stretching component, it can reduce idle time and improve cutting efficiency.

[0014] Second, during use, the anti-slip mat effectively prevents the packaging bag from sliding or shifting due to the force of the cutting blade and the tension of the clamping plate during the cutting process, ensuring the quality stability of the food packaging bag. When the cutting blade is raised and lowered by the first electric push rod, the limiting post slides into the limiting hole, which can limit the cutting blade and ensure that the cutting blade will not deviate or shake when it is raised and lowered, thus improving the stability during cutting.

[0015] Third, during use, adjusting the distance between the two limiting plates allows for positioning of food packaging bags of different thicknesses, improving the flexibility and practicality of the device. When the upper limiting plate is raised or lowered via the fourth electric push rod, the sliding block slides inside the groove, limiting the upper limiting plate and ensuring that it does not shift or shake during the raising and lowering process, thus improving stability. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 This is a breakdown diagram of an embodiment.

[0018] Figure 3 This is a schematic diagram showing the disassembled parts of the movable box and clamping plate in an embodiment.

[0019] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0020] In the diagram: 1. Limiting plate; 2. Base; 3. First groove; 4. Second groove; 5. U-shaped frame; 6. First electric push rod; 7. Cutting knife; 8. Bracket; 9. First guide rail; 10. Moving box; 11. Second guide rail; 12. Connecting box; 13. Clamping plate; 14. Second electric push rod; 15. PLC controller; 16. Packaging bag paper feeding roller; 17. Support plate; 18. Third electric push rod; 19. Knife holder; 20. Anti-slip pad; 21. Limiting hole; 22. Limiting post; 23. Fixing plate; 24. Fourth electric push rod; 26. Slide groove; 27. Sliding block. Detailed Implementation

[0021] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] like Figures 1-4 As shown, a cutting mechanism for processing food packaging bags includes two limiting plates 1, both of which are positioned above a base 2. Two first grooves 3 are formed on the front side of each limiting plate 1, and second grooves 4 are formed on the left and right sides of each limiting plate 1. A U-shaped frame 5 is positioned above the base 2. A first electric push rod 6 is fixed to the top surface of the U-shaped frame 5. The telescopic rod of the first electric push rod 6 passes through the U-shaped frame 5 and is fixed with a cutting blade 7. A bracket 8 is fixed to the top surface of the base 2. A first guide rail 9 is fixed inside the bracket 8. A movable box 10 is fixed to the slider of the first guide rail 9. Two second guide rails 11 are fixed to the top surface of the base 2. A connecting box 12 is fixed to the slider of each of the two second guide rails 11. Two clamping plates 13 are provided inside both the connecting boxes 12 and the movable box 10. The two lower clamping plates 13 are respectively fixed inside the movable box 10 and the connecting box 12. A second electric push rod 14 is fixed to the top surface of both the connecting boxes 12 and the movable box 10. Each of the second electric push rods 14 telescopic rods passes through the movable box 10 and the connecting box 12, and is fixedly connected to several clamping plates 13 above. The clamping plates 13 on the movable box 10 and the second electric push rods 14 are in two sets. A PLC controller 15 is fixed on the base 2. The PLC controller 15 is a Siemens S7-200. The first electric push rod 6, the first guide rail 9, the second guide rail 11, and the second electric push rod 14 are all electrically connected to the PLC controller 15. A packaging bag paper feeding roller 16 is provided above the base 2. Two support plates 17 are fixed on the top surface of the base 2. The lower limiting plate 1 is fixed between the two support plates 17. The upper limiting plate 1 is movably set between the two support plates 17. A U-shaped frame 5 is fixed between the two support plates 17. Two third electric push rods 18 are fixed on the top surface of the base 2. A knife holder 19 is fixed between the telescopic rods of the two third electric push rods 18. The third electric push rods 18 are electrically connected to the PLC controller 15.

[0023] When food packaging bags need to be cut during use, the staff first places the food packaging bag on the paper roller 16 through the space between the two limiting plates 1, and then moves the upper limiting plate 1 downward to squeeze the food packaging bag onto the lower limiting plate 1, thereby achieving the initial positioning of the food packaging bag and ensuring that the packaging bag is in a stable state before cutting, avoiding inaccurate cutting due to positional deviation.

[0024] Next, the first guide rail 9 and the two second guide rails 11 are started by the PLC controller 15. The slider of the first guide rail 9 moves forward, driving the moving box 10 forward synchronously, so that the two sets of clamping plates 13 inside the moving box 10 move accurately to the first groove 3 of the two limiting plates 1. At the same time, the sliders of the two second guide rails 11 also move forward synchronously, driving the connecting box 12 and its internal clamping plates 13 forward until they move to the second groove 4 of the two limiting plates 1.

[0025] At this time, the two second electric push rods 14 on the moving box 10 are activated again by the PLC controller 15. The telescopic rods of the second electric push rods 14 drive the two upper clamping plates 13 to move downward, and closely cooperate with the two lower clamping plates 13 to firmly clamp the food packaging bag between the two limiting plates 1. Then, the upper limiting plate 1 is moved upward to release the limitation on the food packaging bag.

[0026] Next, the first guide rail 9 is activated, causing the slider on it to move backward, which in turn moves the moving box 10 and the food packaging bag clamped by the clamping plate 13 backward, away from the two limiting plates 1. When it moves to the appropriate position, the second electric push rod 14 on the two connecting boxes 12 is activated at the same time, and the clamping plate 13 on the upper part of the two connecting boxes 12 moves downward to further clamp the food packaging bag.

[0027] Subsequently, the first electric push rod 6 is activated by the PLC controller 15, which drives the cutting blade 7 to descend. At the same time, the third electric push rod 18 is activated, which drives the blade holder 19 to rise. The two work together to cut the food packaging bag.

[0028] After cutting, the two second guide rails 11 are activated again via the PLC controller 15. The sliders of the two second guide rails 11 move backward synchronously, causing the clamping plates 13 and the clamped food packaging bags in the two connecting boxes 12 to move backward. When they reach the appropriate position, the first electric push rod 6 drives the cutting blade 7 to descend again, while the third electric push rod 18 is activated to drive the blade holder 19 to rise, performing the next cut on the food packaging bag. Subsequent cutting operations are repeated according to the above steps.

[0029] Through the coordinated action of the limiting plate 1, base 2, first groove 3, second groove 4, U-shaped frame 5, first electric push rod 6, cutting blade 7, bracket 8, first guide rail 9, moving box 10, second guide rail 11, connecting box 12, clamping plate 13, second electric push rod 14 and PLC controller 15, continuous cutting of food packaging bags is achieved. Compared with stretching and cutting food packaging bags by a single stretching component, it can reduce idle time and improve cutting efficiency.

[0030] like Figures 1-3 As shown, anti-slip pads 20 are fixed to the inner sides of several clamping plates 13.

[0031] In use, when several clamping plates 13 clamp the food packaging bag, the anti-slip pads 20 are fixed on the inner side of each clamping plate 13, which can significantly increase the friction between the clamping plate 13 and the food packaging bag. When the clamping plate 13 clamps the packaging bag, the anti-slip pads 20 can effectively prevent the packaging bag from sliding or shifting due to the force of the cutting blade 7 and the pulling force of the clamping plate 13 during the cutting process, thus ensuring the quality stability of the food packaging bag.

[0032] like Figure 1 and Figure 2 As shown, the top surface of the U-shaped frame 5 has two limiting holes 21, and the two limiting holes 21 are respectively slidably inserted with limiting posts 22, and the two limiting posts 22 are respectively fixed to the top surface of the cutting blade 7.

[0033] During use, when the cutting blade 7 is raised or lowered by the first electric push rod 6, the limiting post 22 is slidably inserted into the limiting hole 21, which can limit the cutting blade 7 and ensure that the cutting blade 7 will not deviate or shake when it is raised or lowered, thus improving the stability during cutting.

[0034] like Figure 1 , Figure 2 and Figure 4 As shown, a fixing plate 23 is fixed to the inner side of each of the two support plates 17, and a fourth electric push rod 24 is fixed to the bottom surface of each of the two fixing plates 23. One end of the telescopic rod of each of the two fourth electric push rods 24 is fixedly connected to the upper limit plate 1. The fourth electric push rod 24 is electrically connected to the PLC controller 15. A sliding groove 25 is provided on the inner side of each of the two limit plates 1. A sliding block 26 is fixed to the left and right sides of the upper limit plate 1. The two sliding blocks 26 are slidably arranged in the two sliding grooves 25.

[0035] In use, the operator activates the two fourth electric push rods 24 via the PLC controller 15, causing the telescopic rods to rise and fall synchronously. This moves the upper limit plate 1 up and down, adjusting the distance between the two limit plates 1, thereby enabling the positioning of food packaging bags of different thicknesses and improving the flexibility and practicality of the device. When the upper limit plate 1 is raised and lowered by the fourth electric push rods 24, the sliding block 26 slides inside the slide groove 25, limiting the upper limit plate 1 and ensuring that it does not shift or shake during the raising and lowering process, thus improving stability.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cutting mechanism for food packaging bag processing, comprising two limiting plates (1), both of which are arranged above the base (2), characterized in that, Two first grooves (3) are provided on the front side of the two limiting plates (1), and second grooves (4) are provided on the left and right sides of the two limiting plates (1). A U-shaped frame (5) is provided above the base (2). A first electric push rod (6) is fixed on the top surface of the U-shaped frame (5). The telescopic rod of the first electric push rod (6) passes through the U-shaped frame (5) and is fixed with a cutting blade (7). A bracket (8) is fixed on the top surface of the base (2). A first guide rail (9) is fixed inside the bracket (8). A movable box (10) is fixed to the slider of the first guide rail (9). Two second guide rails (11) are fixed on the top surface of the base (2). The sliders are all fixed with connecting boxes (12). The two connecting boxes (12) and the moving box (10) are each provided with two clamping plates (13). The two clamping plates (13) below are fixed in the moving box (10) and the connecting box (12) respectively. The top surfaces of the two connecting boxes (12) and the moving box (10) are all fixed with second electric push rods (14). Several second electric push rods (14) telescopic rods pass through the moving box (10) and the connecting box (12) and are fixedly connected to several clamping plates (13) above. The clamping plates (13) on the moving box (10) and the second electric push rods (14) are two sets. The base (2) is fixed with a PLC controller (15).

2. The cutting mechanism for processing food packaging bags according to claim 1, characterized in that: The base (2) is provided with a packaging bag paper feeding roller (16) above it. Two support plates (17) are fixed on the top surface of the base (2). The lower limiting plate (1) is fixed between the two support plates (17). The upper limiting plate (1) is movably arranged between the two support plates (17). The U-shaped frame (5) is fixed between the two support plates (17). Two third electric push rods (18) are fixed on the top surface of the base (2). A knife holder (19) is fixed between the telescopic rods of the two third electric push rods (18). The third electric push rods (18) are electrically connected to the PLC controller (15).

3. The cutting mechanism for processing food packaging bags according to claim 2, characterized in that: Anti-slip pads (20) are fixed to the inner side of several of the clamps (13).

4. The cutting mechanism for processing food packaging bags according to claim 3, characterized in that: The top surface of the U-shaped frame (5) has two limiting holes (21), and the two limiting holes (21) are respectively slidably inserted with limiting posts (22), and the two limiting posts (22) are respectively fixed on the top surface of the cutting blade (7).

5. The cutting mechanism for processing food packaging bags according to claim 2, characterized in that: The inner sides of the two support plates (17) are fixed with fixing plates (23), and the bottom surfaces of the two fixing plates (23) are fixed with fourth electric push rods (24). One end of the telescopic rods of the two fourth electric push rods (24) is fixedly connected to the upper limiting plate (1), and the fourth electric push rods (24) are electrically connected to the PLC controller (15).

6. The cutting mechanism for processing food packaging bags according to claim 1, characterized in that: The inner sides of both limiting plates (1) are provided with sliding grooves (25), and the left and right sides of the upper limiting plate (1) are fixed with sliding blocks (26). The two sliding blocks (26) are respectively slidably arranged in the two sliding grooves (25).

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