Automatic cutting equipment for food packaging bags

Abstract

The utility model relates to the technical field of cutting equipment, concretely is a kind of food packaging bag automatic cutting equipment, including work bench, work bench is provided with conveying groove, still include two groups of conveying mechanism, lifting mechanism, two groups of adjusting mechanism, two groups of compacting mechanism, mounting bracket, lifting plate, cooperation plate and cutting knife, two groups of conveying mechanism are all installed in conveying groove, two groups of conveying mechanism form horizontal distribution, two groups of conveying mechanism are used to convey food packaging bag. Through two groups of compacting mechanism, and two groups of compacting mechanism are located cutting knife two sides respectively, can accurately, stably compact food packaging bag on cooperation plate before cutting and during cutting process. Avoid the displacement of packaging bag due to no effective fixing, provide stable basis for subsequent cutting operation. Since two groups of compacting mechanism can reliably compact packaging bag, effectively solve the phenomenon that packaging bag appears to pull during cutting.

Description

Technical Field

[0001] This utility model relates to the technical field of cutting equipment, specifically an automatic cutting equipment for food packaging bags. Background Technology

[0002] Food packaging bags are bag-shaped containers used to package food. They are usually made of materials such as plastic, paper, and aluminum foil. Their main functions are to protect food from external contamination, extend the shelf life of food, and facilitate carrying and storage. In the market, we can see various types of food packaging bags, such as fresh-keeping bags, vacuum bags, and stand-up pouches. They have different designs and functions and are suitable for packaging different kinds of food. Cutting devices are required in the production process of packaging bags.

[0003] Existing slitting devices for producing environmentally friendly packaging bags lack an effective clamping mechanism during the slitting process. This causes the bags to slip and become unstable, resulting in uneven cuts and tearing of the bags, which in turn affects the flatness and accuracy of the cuts. Therefore, an automatic slitting device for food packaging bags is needed to solve the aforementioned problems. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an automatic food packaging bag cutting device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an automatic food packaging bag cutting device, including a workbench, a conveying trough being provided on the workbench, and further comprising: The system includes two sets of conveying mechanisms, a lifting mechanism, two sets of adjusting mechanisms, two sets of pressing mechanisms, a mounting frame, a lifting plate, a mating plate, and a slitting blade. Both sets of conveying mechanisms are installed within the conveying trough and are horizontally distributed. These two sets of conveying mechanisms are used to convey food packaging bags. The mounting frame is connected to the middle of the top of the workbench. The lifting mechanism is connected to the top of the mounting frame. The lifting plate is connected to the bottom of the lifting mechanism. The slitting blade is connected to the bottom of the lifting plate. Both ends of the mating plate are connected to both ends of the conveying trough. The mating plate is located directly below the slitting blade and is positioned between the two sets of conveying mechanisms. The top of the mating plate... The end is at the same horizontal position as the top of the two sets of conveying mechanisms. The lifting mechanism drives the slitting blade to descend and cooperate with the mating plate to slit the food packaging bag. Both sets of adjustment mechanisms are connected to the lifting plate. The two sets of pressing mechanisms are respectively connected to the bottom of the two sets of adjustment mechanisms. The two sets of pressing mechanisms are located on both sides of the slitting blade. The two sets of pressing mechanisms are used to press the food packaging bag on the mating plate. The two sets of adjustment mechanisms adjust the pressure of the two sets of pressing mechanisms on the food packaging bag. A drive mechanism is provided on one side of the worktable. The drive mechanism is used to drive the two sets of conveying mechanisms to work at the same time.

[0006] Preferably, both sets of clamping mechanisms include an adjusting plate, two sets of sleeves, two sets of telescopic rods, two sets of springs, and a clamping plate. The adjusting plate is connected to the bottom end of the adjusting mechanism, the two sets of sleeves are connected to the bottom end of the adjusting plate, the outer walls of the two sets of telescopic rods are slidably fitted onto the inner walls of the two sets of sleeves, the clamping plate is connected to the bottom end of the two sets of telescopic rods, the two sets of springs are fitted onto the two sets of telescopic rods, the top ends of the two sets of springs are connected to the bottom ends of the two sets of sleeves, and the bottom ends of the two sets of springs are connected to the top ends of the clamping plate.

[0007] Preferably, both sets of adjustment mechanisms include two sets of first guide rods, a rotating tube, a lifting screw, a first motor, a drive shaft, a first bevel gear, and a second bevel gear. The bottom ends of the two sets of first guide rods are connected to the top end of the adjustment plate, and the two sets of first guide rods are slidably connected to the lifting plate. The lifting plate is provided with a rotating hole, the outer wall of the rotating tube is rotatably connected to the rotating hole, the inner wall of the rotating tube is provided with an internal thread, the lifting screw is threadedly connected to the internal thread, the bottom end of the lifting screw is connected to the top end of the adjustment plate, the first motor is connected to the top end of the lifting plate, one end of the drive shaft is connected to the output end of the first motor, the first bevel gear is connected to the other end of the drive shaft, the second bevel gear is connected to the outer wall of the rotating tube, and the first bevel gear and the second bevel gear are meshed. The diameter of the first bevel gear is smaller than the diameter of the second bevel gear.

[0008] Preferably, the lifting mechanism includes an electric cylinder and two sets of second guide rods. The electric cylinder is connected to the top of the mounting frame, the output end of the electric cylinder is connected to the top of the lifting plate, the bottom end of the second guide rod is connected to the top of the lifting plate, and the second guide rod is slidably connected to the top of the mounting frame.

[0009] Preferably, both sets of conveying mechanisms include two sets of conveying shafts and conveyor belts. The two sets of conveying shafts are rotatably connected to the conveying trough, and the conveyor belts are rotatably connected to the two sets of conveying shafts. The mating plate is located between the two sets of conveyor belts.

[0010] Preferably, the drive mechanism includes a support frame, a second motor, two sets of rotating shafts, two sets of sprockets, and a chain. The support frame is connected to one end of the worktable, the second motor is connected to the support frame, the two sets of rotating shafts are rotatably connected to one end of the worktable, the two sets of rotating shafts are respectively connected to two sets of conveying shafts located close to each other in the middle of the conveying trough, the output end of the second motor is connected to one of the sets of rotating shafts, the two sets of sprockets are respectively connected to the two sets of rotating shafts, and the two sets of sprockets are rotatably connected by a chain.

[0011] Preferably, it also includes two sets of connecting plates, the inner ends of the two sets of connecting plates are connected to the two ends of the mating plate, the two ends of the two sets of connecting plates are respectively slidably attached to the two adjacent sets of conveyor belts, and the tops of the two sets of connecting plates are at the same horizontal position as the tops of the mating plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are: With two sets of clamping mechanisms located on either side of the slitting blade, the food packaging bags on the mating plate can be precisely and stably clamped before and during slitting. This prevents displacement of the packaging bags due to lack of effective fixation, providing a stable foundation for subsequent slitting operations. Because the two clamping mechanisms reliably clamp the packaging bags, the problem of bags being pulled during slitting is effectively solved. Simultaneously, the mating plate is located directly below the slitting blade and between the two conveying mechanisms, with its top end at the same level as the top ends of the two conveying mechanisms. This structural design ensures that the slitting blade can cooperate with the mating plate to complete the slitting process in a flat and stable state, avoiding problems such as skewed cuts and rough edges caused by unevenness or displacement of the packaging bags, significantly improving the flatness of the cut and greatly enhancing slitting accuracy.

[0013] The equipment is equipped with two sets of adjustment mechanisms, each connected to a separate clamping mechanism. These mechanisms allow for flexible adjustment of the clamping pressure on the food packaging bags. In actual production, food packaging bags come in various thicknesses, each requiring different clamping forces. Too loose a force will not provide effective fixation, while too tight a force may cause deformation or damage. The adjustment mechanism of this equipment is designed to precisely adapt to the clamping requirements of packaging bags of different thicknesses, eliminating the need to replace specialized clamping components. This significantly enhances the equipment's versatility and reduces the additional equipment costs incurred by companies producing packaging bags of different specifications.

[0014] The equipment features two horizontally distributed conveyor systems. A drive mechanism on one side of the worktable can simultaneously power both systems, enabling continuous and automated conveying of food packaging bags. A lifting mechanism connected to the top of the mounting frame automatically raises and lowers the lifting plate and slitting blade to complete the slitting operation. The entire process eliminates the need for manual conveying and control of the slitting action, significantly reducing human intervention and labor intensity. The two conveyor systems work in conjunction with the mating plate. The conveyor system smoothly transports the packaging bags to the mating plate, which provides stable support for slitting. The mating plate is level with the conveyor system, ensuring no height difference causes jamming or wrinkling when the packaging bags reach the slitting position. The slitting blade descends vertically under the lifting mechanism, and the stable clamping of the two side clamping mechanisms ensures even force distribution on the packaging bags during slitting. This prevents tearing and damage caused by excessive localized force, effectively protecting the integrity of the packaging bags, reducing the scrap rate, and improving the product qualification rate. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the isometric structure of this utility model; Figure 2 This is a schematic diagram of the sprocket, chain, and their connection structure of the present invention; Figure 3This is a schematic diagram of the lifting plate, electric cylinder, and their connection structure of this utility model; Figure 4 This is a schematic diagram of the mating plate, connecting plate, and their connection structure of the present invention; Figure 5 This is a schematic diagram of the rotating tube, lifting screw, and their connection structure of this utility model; Figure 6 This utility model Figure 3 A magnified structural diagram of A in the middle.

[0016] Reference numerals: 1. Workbench; 2. Conveying trough; 3. Mounting frame; 4. Lifting plate; 5. Mating plate; 6. Slitting blade; 7. Adjusting plate; 8. Sleeve; 9. Telescopic rod; 10. Spring; 11. Pressing plate; 12. First guide rod; 13. Rotating tube; 14. Lifting screw; 15. First motor; 16. Drive shaft; 17. First bevel gear; 18. Second bevel gear; 19. Electric cylinder; 20. Second guide rod; 21. Conveying shaft; 22. Conveying belt; 23. Support frame; 24. Second motor; 25. Rotating shaft; 26. Sprocket; 27. Chain; 28. Connecting plate. Detailed Implementation

[0017] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0018] Please see Figures 1-6 An automatic food packaging bag cutting device includes a workbench 1, on which a conveyor trough 2 is provided, and further includes: The system includes two sets of conveying mechanisms, a lifting mechanism, two sets of adjusting mechanisms, two sets of pressing mechanisms, a mounting frame 3, a lifting plate 4, a mating plate 5, and a slitting blade 6. Both sets of conveying mechanisms are installed within the conveying trough 2 and are horizontally distributed. These two sets of conveying mechanisms are used to convey food packaging bags. The mounting frame 3 is connected to the top center of the workbench 1. The lifting mechanism is connected to the top of the mounting frame 3. The lifting plate 4 is connected to the bottom of the lifting mechanism. The slitting blade 6 is connected to the bottom of the lifting plate 4. The mating plate 5 is connected to both ends of the conveying trough 2 and is located directly below the slitting blade 6, positioned between the two sets of conveying mechanisms. Furthermore, the top of the mating plate 5 is at the same horizontal position as the top of the two sets of conveying mechanisms. The lifting mechanism drives the slitting blade 6 to descend and cooperate with the mating plate 5 to slit the food packaging bag. Both sets of adjustment mechanisms are connected to the lifting plate 4. The two sets of pressing mechanisms are respectively connected to the bottom of the two sets of adjustment mechanisms. The two sets of pressing mechanisms are located on both sides of the slitting blade 6. The two sets of pressing mechanisms are used to press the food packaging bag on the mating plate 5. The two sets of adjustment mechanisms adjust the pressure of the two sets of pressing mechanisms on the food packaging bag. A drive mechanism is provided on one side of the workbench 1. The drive mechanism is used to drive the two sets of conveying mechanisms to work simultaneously. With two sets of clamping mechanisms located on either side of the slitting blade 6, the food packaging bags on the mating plate 5 can be precisely and stably clamped before and during slitting. This prevents displacement of the packaging bags due to lack of effective fixation, providing a stable foundation for subsequent slitting operations. Because the two clamping mechanisms reliably clamp the packaging bags, the phenomenon of tearing during slitting is effectively solved. Simultaneously, the mating plate 5 is located directly below the slitting blade 6 and between the two conveying mechanisms, with its top end at the same horizontal level as the top ends of the two conveying mechanisms. This structural design ensures that the slitting blade 6 can cooperate with the mating plate 5 to complete the slitting process in a flat and stable state, avoiding problems such as skewed cuts and rough edges caused by unevenness or displacement of the packaging bags, significantly improving the flatness of the cut and greatly enhancing slitting accuracy.

[0019] The equipment is equipped with two sets of adjustment mechanisms, each connected to a separate clamping mechanism. These mechanisms allow for flexible adjustment of the clamping pressure on the food packaging bags. In actual production, food packaging bags come in various thicknesses, each requiring different clamping forces. Too loose a force will not provide effective fixation, while too tight a force may cause deformation or damage. The adjustment mechanism of this equipment is designed to precisely adapt to the clamping requirements of packaging bags of different thicknesses, eliminating the need to replace specialized clamping components. This significantly enhances the equipment's versatility and reduces the additional equipment costs incurred by companies producing packaging bags of different specifications.

[0020] The equipment features two horizontally distributed conveyor mechanisms. A drive mechanism on one side of the workbench 1 can simultaneously power both conveyor mechanisms, enabling continuous and automated conveying of food packaging bags. A lifting mechanism connected to the top of the mounting frame 3 automatically raises and lowers the lifting plate 4 and the slitting blade 6 to complete the slitting operation. The entire process requires no manual conveying or control of the slitting action, significantly reducing human intervention and labor intensity. The two conveyor mechanisms work in conjunction with the mating plate 5. The conveyor mechanisms smoothly transport the packaging bags onto the mating plate 5, which provides stable support for slitting. The mating plate 5 is level with the conveyor mechanisms, ensuring no height difference causes jamming or wrinkling when the packaging bags reach the slitting position. The slitting blade 6 descends vertically under the lifting mechanism for slitting, and with the stable clamping of the clamping mechanisms on both sides, the packaging bags are evenly stressed during slitting, preventing tearing or damage caused by excessive localized stress. This effectively protects the integrity of the packaging bags, reduces the scrap rate during production, and improves the product qualification rate.

[0021] Please see Figures 1-4Both sets of clamping mechanisms include an adjusting plate 7, two sets of sleeves 8, two sets of telescopic rods 9, two sets of springs 10, and a clamping plate 11. The adjusting plate 7 is connected to the bottom end of the adjusting mechanism, the two sets of sleeves 8 are connected to the bottom end of the adjusting plate 7, the outer walls of the two sets of telescopic rods 9 are slidably fitted with the inner walls of the two sets of sleeves 8, the clamping plate 11 is connected to the bottom end of the two sets of telescopic rods 9, the two sets of springs 10 are fitted with the two sets of telescopic rods 9, the top ends of the two sets of springs 10 are connected to the bottom ends of the two sets of sleeves 8, and the bottom ends of the two sets of springs 10 are connected to the top ends of the clamping plate 11. Through the cooperation of sleeve 8, telescopic rod 9, and spring 10, the clamping force of the pressure plate 11 on the food packaging bag has elastic buffering characteristics. When the adjustment mechanism adjusts the clamping pressure, the spring 10 can absorb excessive pressure through its own deformation, avoiding deformation and damage to the packaging bag caused by sudden pressure increases or slight fluctuations in the thickness of the packaging bag, thus solving the problem of easy damage to the packaging bag caused by traditional rigid clamping; at the same time, the continuous elastic force of the spring 10 can ensure that the pressure plate 11 is always in contact with the surface of the packaging bag. The two sets of sleeves 8 and telescopic rods 9 are symmetrically distributed, which can limit the offset of the pressure plate 11, ensuring that the pressure plate 11 always maintains a horizontal state to clamp the packaging bag, avoiding insufficient local clamping force and packaging bag displacement caused by the tilt of the pressure plate 11, providing a more stable cutting base for the slitting blade 6, and further improving the flatness of the cut and the cutting accuracy.

[0022] Please see Figures 1-5 Both sets of adjustment mechanisms include two sets of first guide rods 12, a rotating tube 13, a lifting screw 14, a first motor 15, a drive shaft 16, a first bevel gear 17, and a second bevel gear 18. The bottom ends of the two sets of first guide rods 12 are connected to the top end of the adjustment plate 7, and the two sets of first guide rods 12 are slidably connected to the lifting plate 4. The lifting plate 4 is provided with a rotating hole, the outer wall of the rotating tube 13 is rotatably connected to the rotating hole, the inner wall of the rotating tube 13 is provided with an internal thread, the lifting screw 14 is threadedly connected to the internal thread, the bottom end of the lifting screw 14 is connected to the top end of the adjustment plate 7, the first motor 15 is connected to the top end of the lifting plate 4, one end of the drive shaft 16 is connected to the output end of the first motor 15, the first bevel gear 17 is connected to the other end of the drive shaft 16, the second bevel gear 18 is connected to the outer wall of the rotating tube 13, the first bevel gear 17 and the second bevel gear 18 are meshed, and the diameter of the first bevel gear 17 is smaller than the diameter of the second bevel gear 18. When the first motor 15 is powered on and started, it drives the drive shaft 16, the first bevel gear 17, and the second bevel gear 18, causing the rotating tube 13 to rotate. This, in turn, causes the lifting screw 14 to move up and down along the internal thread of the rotating tube 13, achieving fine-tuning of the height of the adjusting plate 7. Compared to traditional manual adjustment, the first motor 15 can precisely control the displacement of the lifting screw 14 by controlling its speed and number of rotations, thereby accurately adjusting the clamping pressure of the clamping mechanism. The two sets of first guide rods 12 are slidably connected to the lifting plate 4, which can limit the lateral displacement of the adjusting plate 7 during the lifting process, ensuring that the adjusting plate 7 always moves in the vertical direction. The diameter of the first bevel gear 17 is smaller than that of the second bevel gear 18, forming a reduction transmission structure. This structure can drive the rotating tube 13 to rotate through the smaller torque output of the first motor 15, reducing the load on the first motor 15, and can also slow down the lifting speed of the adjusting plate 7, making it easier for the operator to accurately control the clamping pressure, reducing the difficulty of operation, and improving the adjustment efficiency.

[0023] Please see Figures 1-3 The lifting mechanism includes an electric cylinder 19 and two sets of second guide rods 20. The electric cylinder 19 is connected to the top of the mounting frame 3, the output end of the electric cylinder 19 is connected to the top of the lifting plate 4, the bottom end of the second guide rod 20 is connected to the top of the lifting plate 4, and the second guide rod 20 is slidably connected to the top of the mounting frame 3. The electric cylinder 19 drive features stable output force and uniform lifting speed, enabling the lifting plate 4 and slitting blade 6 to move smoothly up and down vertically. This avoids tilting or shifting of the slitting blade 6 due to fluctuations in lifting speed or uneven force, ensuring that the slitting blade 6 always maintains a vertical posture to cooperate with the mating plate 5 for cutting. This further reduces problems such as skewed cuts and burrs, improving cutting accuracy. Two sets of second guide rods 20 are slidably connected to the mounting bracket 3, which can limit the lateral sway of the lifting plate 4 during the lifting process, ensuring that the lifting plate 4 always moves along a fixed trajectory.

[0024] Please see Figures 1-3 Both sets of conveying mechanisms include two sets of conveying shafts 21 and conveyor belts 22. The two sets of conveying shafts 21 are rotatably connected to the conveying trough 2, and the conveyor belts 22 are rotatably connected to the two sets of conveying shafts 21. The mating plate 5 is located between the two sets of conveyor belts 22. The conveyor belt 22 is rotatably connected to two sets of conveyor shafts 21 to form a continuous planar conveying structure, which can support and transport food packaging bags. The conveyor belt 22 has certain flexibility and anti-slip properties, and can be adapted to food packaging bags of different widths and materials. The connection between the conveyor shafts 21 and the conveyor belt 22 is simple. If the conveyor belt 22 is worn or broken, it can be quickly disassembled and replaced. The rotating parts of the conveyor shafts 21 are also easy to lubricate and maintain daily, reducing equipment downtime and ensuring production continuity.

[0025] Please see Figure 1 and Figure 2The drive mechanism includes a support frame 23, a second motor 24, two sets of rotating shafts 25, two sets of sprockets 26, and a chain 27. The support frame 23 is connected to one end of the worktable 1, the second motor 24 is connected to the support frame 23, the two sets of rotating shafts 25 are rotatably connected to one end of the worktable 1, the two sets of rotating shafts 25 are respectively connected to two sets of conveying shafts 21 located close to each other in the middle of the conveying trough 2, the output end of the second motor 24 is connected to one of the sets of rotating shafts 25, the two sets of sprockets 26 are respectively connected to the two sets of rotating shafts 25, and the two sets of sprockets 26 are rotatably connected through the chain 27. A second motor 24 drives a set of rotating shafts 25, which in turn drive another set of rotating shafts 25 to rotate synchronously via a sprocket 26 and a chain 27. This ensures that the conveyor shafts 21 and conveyor belts 22 of both conveyor mechanisms rotate at the same speed, guaranteeing that the conveying speeds of the two conveyor belts 22 are completely consistent. The sprocket 26 and chain 27 transmission features high transmission efficiency and low power loss, stably transmitting the power of the second motor 24 to both conveyor mechanisms. The support frame 23 provides stable support for the second motor 24 and rotating shafts 25, preventing the transmission components from shifting due to vibration. The sprocket 26 and chain 27 wear slowly, and routine maintenance only requires periodic lubrication, eliminating the need for frequent component replacement and reducing equipment maintenance costs and operational complexity.

[0026] Please see Figures 1-6 It also includes two sets of connecting plates 28, the inner ends of the two sets of connecting plates 28 are connected to the two ends of the mating plate 5, the two ends of the two sets of connecting plates 28 are respectively slidably attached to the two sets of conveyor belts 22 that are close to each other, and the top of the two sets of connecting plates 28 is at the same horizontal position as the top of the mating plate 5. The inner end of the connecting plate 28 is connected to the mating plate 5, and the outer end is slidably attached to the conveyor belt 22. The top end is at the same level as the mating plate 5 and the top end of the conveyor belt 22. This can fill the small gap between the conveyor belt 22 and the mating plate 5, and prevent the food packaging bag from getting stuck on the edge of the packaging bag due to the gap during the process of conveying from the conveyor belt 22 to the mating plate 5, which would cause conveying jams, damage to the packaging bag or deviation in the cutting position, thus ensuring the continuity of the conveying process.

[0027] In summary, when using this automatic food packaging bag cutting equipment, the clamping pressure of the two clamping mechanisms is adjusted according to the thickness specifications of the food packaging bag to be cut through two sets of adjustment mechanisms. The first motor 15 of the adjustment mechanism is started, and the first motor 15 drives the drive shaft 16 to rotate the first bevel gear 17. The first bevel gear 17 meshes with the second bevel gear 18, causing the rotating tube 13 to rotate. The internal thread of the rotating tube 13 cooperates with the lifting screw 14, which drives the lifting screw 14, the adjustment plate 7, and the clamping mechanism to move up and down until the pre-pressure of the clamping plate 11 of the clamping mechanism on the packaging bag is adapted to the current packaging bag thickness. After the adjustment is completed, the first motor 15 is turned off.

[0028] The drive mechanism on one side of the workbench 1 is activated, and the second motor 24 outputs power to drive a set of rotating shafts 25 to rotate. These rotating shafts 25 are driven by a sprocket 26 and a chain 27, which in turn drive another set of rotating shafts 25 to rotate synchronously. The two sets of rotating shafts 25 drive the conveyor shafts 21 near the middle of the two sets of conveying mechanisms to rotate, thereby causing the two sets of conveyor belts 22 to rotate synchronously, forming a continuous horizontal conveying channel. The food packaging bags to be cut are neatly placed on the conveyor belt 22 of one of the conveying mechanisms, and the conveyor belt 22 moves the packaging bags toward the mating plate 5. When the front end of the packaging bag moves to the surface of the connecting plate 28, it smoothly transitions along the connecting plate 28 to the top of the mating plate 5 until the cutting position of the packaging bag moves directly below the cutting blade 6, at which point the conveying mechanism stops conveying. The lifting mechanism is activated, and the electric cylinder 19 drives the lifting plate 4 to descend vertically along the second guide rod 20. The lifting plate 4 drives the two sets of pressing mechanisms and the slitting blade 6 to descend synchronously. First, the pressing plates 11 of the two sets of pressing mechanisms contact the surface of the packaging bag on the mating plate 5, and the packaging bag is stably pressed by adjusting the preset pressure of the mechanism. Then, the slitting blade 6 continues to descend and cooperates with the mating plate 5 to vertically cut the pressed packaging bag, completing the cutting action.

[0029] After the slitting is completed, the electric cylinder 19 drives the lifting plate 4 to rise, which drives the slitting knife 6 and the pressing mechanism to reset. At the same time, the drive mechanism starts again, and the two sets of conveyor belts 22 rotate synchronously to transport the slitting packaging bags to the next process, while transporting the subsequent packaging bags to be slitting to the slitting position on the mating plate 5, so as to realize continuous automated production.

[0030] The first motor 15, the second motor 24, and the electric cylinder 19 are commercially available devices known to those skilled in the art. We are simply using them here without making any structural or functional improvements, so we will not go into detail here. The first motor 15, the second motor 24, and the electric cylinder 19 are equipped with matching control switches. The installation position of the control switches is selected according to actual usage requirements to facilitate operation and control by the operator.

[0031] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A food packaging bag automatic slitting device, comprising a workbench (1), a conveying groove (2) is arranged on the workbench (1), characterized in that, Also includes: Two sets of conveying mechanisms, lifting mechanisms, two sets of adjusting mechanisms, two sets of pressing mechanisms, mounting frame (3), lifting plate (4), mating plate (5), and slitting blade (6). Both sets of conveying mechanisms are installed in the conveying trough (2). The two sets of conveying mechanisms are horizontally distributed and used to convey food packaging bags. The mounting frame (3) is connected to the middle of the top of the workbench (1). The lifting mechanism is connected to the top of the mounting frame (3). The lifting plate (4) is connected to the bottom of the lifting mechanism. The slitting blade (6) is connected to the bottom of the lifting plate (4). The two ends of the mating plate (5) are connected to the two ends of the conveying trough (2). The mating plate (5) is located directly below the slitting blade (6). The mating plate (5) is located between the two sets of conveying mechanisms. Between the conveying mechanisms, and with the top of the mating plate (5) at the same level as the top of the two conveying mechanisms, the lifting mechanism drives the slitting blade (6) to descend and cooperate with the mating plate (5) to slit the food packaging bag. Both sets of adjustment mechanisms are connected to the lifting plate (4). The two sets of pressing mechanisms are respectively connected to the bottom of the two sets of adjustment mechanisms. The two sets of pressing mechanisms are located on both sides of the slitting blade (6). The two sets of pressing mechanisms are used to press the food packaging bag on the mating plate (5). The two sets of adjustment mechanisms respectively adjust the pressure of the two sets of pressing mechanisms pressing the food packaging bag. A driving mechanism is provided on one side of the workbench (1). The driving mechanism is used to drive the two sets of conveying mechanisms to work at the same time.

2. The automatic food packaging bag cutting device according to claim 1, characterized in that: Both sets of clamping mechanisms include an adjusting plate (7), two sets of sleeves (8), two sets of telescopic rods (9), two sets of springs (10), and a clamping plate (11). The adjusting plate (7) is connected to the bottom end of the adjusting mechanism. The two sets of sleeves (8) are connected to the bottom end of the adjusting plate (7). The outer walls of the two sets of telescopic rods (9) are slidably fitted with the inner walls of the two sets of sleeves (8). The clamping plate (11) is connected to the bottom end of the two sets of telescopic rods (9). The two sets of springs (10) are fitted with the two sets of telescopic rods (9). The top ends of the two sets of springs (10) are connected to the bottom ends of the two sets of sleeves (8). The bottom ends of the two sets of springs (10) are connected to the top ends of the clamping plate (11).

3. The automatic dividing equipment for food packaging bags according to claim 2, characterized in that: Both sets of adjustment mechanisms include two sets of first guide rods (12), a rotating tube (13), a lifting screw (14), a first motor (15), a drive shaft (16), a first bevel gear (17), and a second bevel gear (18). The bottom ends of the two sets of first guide rods (12) are connected to the top end of the adjustment plate (7), and the two sets of first guide rods (12) are slidably connected to the lifting plate (4). The lifting plate (4) is provided with a rotating hole, and the outer wall of the rotating tube (13) is rotatably connected to the rotating hole. The inner wall of the rotating tube (13) is provided with an internal thread. The lifting screw (14) is connected to the internal thread. The bottom end of the lifting screw (14) is connected to the top end of the adjusting plate (7). The first motor (15) is connected to the top end of the lifting plate (4). One end of the drive shaft (16) is connected to the output end of the first motor (15). The first bevel gear (17) is connected to the other end of the drive shaft (16). The second bevel gear (18) is connected to the outer wall of the rotating tube (13). The first bevel gear (17) and the second bevel gear (18) are meshed. The diameter of the first bevel gear (17) is smaller than the diameter of the second bevel gear (18).

4. The automatic food packaging bag cutting device according to claim 3, characterized in that: The lifting mechanism includes an electric cylinder (19) and two sets of second guide rods (20). The electric cylinder (19) is connected to the top of the mounting frame (3), the output end of the electric cylinder (19) is connected to the top of the lifting plate (4), the bottom end of the second guide rod (20) is connected to the top of the lifting plate (4), and the second guide rod (20) is slidably connected to the top of the mounting frame (3).

5. The automatic food packaging bag cutting device according to claim 4, characterized in that: Both sets of conveying mechanisms include two sets of conveying shafts (21) and conveyor belts (22). The two sets of conveying shafts (21) are rotatably connected to the conveying trough (2), and the conveyor belts (22) are rotatably connected to the two sets of conveying shafts (21). The mating plate (5) is located between the two sets of conveyor belts (22).

6. The automatic food packaging bag cutting device according to claim 5, characterized in that: The drive mechanism includes a support frame (23), a second motor (24), two sets of rotating shafts (25), two sets of sprockets (26), and a chain (27). The support frame (23) is connected to one end of the workbench (1), the second motor (24) is connected to the support frame (23), the two sets of rotating shafts (25) are rotatably connected to one end of the workbench (1), the two sets of rotating shafts (25) are respectively connected to two sets of conveying shafts (21) located close to each other in the middle of the conveying trough (2), the output end of the second motor (24) is connected to one of the sets of rotating shafts (25), the two sets of sprockets (26) are respectively connected to the two sets of rotating shafts (25), and the two sets of sprockets (26) are rotatably connected through the chain (27).

7. The automatic food packaging bag cutting device according to claim 6, characterized in that: It also includes two sets of connecting plates (28), the inner ends of the two sets of connecting plates (28) are connected to the two ends of the mating plate (5), the two ends of the two sets of connecting plates (28) are respectively slidably attached to the two sets of conveyor belts (22) that are close to each other, and the top of the two sets of connecting plates (28) is at the same horizontal position as the top of the mating plate (5).

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