A low-energy consumption and high-efficiency slitter

Abstract

The present invention relates to the technical field of slitting machines, and discloses a low-energy consumption and high-efficiency slitting machine, which includes a machine body. A unwinding roller is installed on the outer surface of the machine body. A rewinding unit is installed on the outer surface of the machine body on the side away from the unwinding roller. A plurality of slitting knives are installed in the middle of the machine body. A knife distance adjustment and image magnification assembly for facilitating the operator to adjust the knife distance and facilitating the inspection of the knife distance is arranged outside the slitting knife. The knife distance adjustment and image magnification assembly includes two symmetrically distributed lead screws. Through the rotation of the lead screws in the present invention, the slitting knives on their surfaces can move away from or close to each other. During the movement of the slitting knives on the surfaces of the lead screws, with the cooperation of the regulation grooves and the mating shafts, the remaining slitting knives will be driven to move synchronously. Therefore, the operator does not need to separately inspect the slitting knives on both sides, greatly improving the adjustment efficiency and reducing the error risk brought by manual operation.

Description

Technical Field

[0001] The present invention relates to the technical field of slitting machines, and particularly to a low-energy-consumption and high-efficiency slitting machine. Background Art

[0002] A slitting machine is a device used to slit materials such as food packaging bags into appropriate sizes. Through precise cutting devices, it cuts continuous packaging bag materials according to set specifications to meet different packaging requirements.

[0003] However, there are still some problems with existing slitting machines: Firstly, during each roll change process, the distance between the cutting tools needs to be adjusted because different rolls vary in width, thickness, or material properties. To ensure the accuracy and quality of slitting, the distance between the cutting tools needs to be adjusted according to the specific conditions of the new roll.

[0004] In terms of the adjustment method, although pneumatic adjustment has certain automation advantages, its cost is high and it requires a large number of sensors, which keeps the cost of this adjustment method high and requires frequent maintenance. The adjustment method combining pneumatics and sensors has high requirements for the experience of operators. Operators must be very experienced to operate well, otherwise errors are likely to occur during operation. Moreover, during pneumatic adjustment, if a sensor fails, the machine needs to be stopped for maintenance. At this time, the operator needs to enter the equipment to handle the fault. The internal space of the equipment is limited and the structure is complex. It is not only inconvenient for the operator to enter the equipment for maintenance, but also the entire maintenance process is relatively long, resulting in a long downtime impact.

[0005] Considering that the gross profit of food packaging bags is relatively small, in the actual situation of large-scale production with meager profits, the prior art usually chooses the method of manually adjusting the knife distance. However, manual adjustment is extremely time-consuming. The operator first roughly adjusts the cutting tools on both sides to appropriate positions, and then uses measuring tools such as a tape measure to precisely adjust them one by one according to the dimensions on the installation list. However, there will be errors during manual adjustment. Since this process relies on the operator's manual operation and visual judgment, it is difficult for different operators or the same operator in different working states to ensure the accuracy of each adjustment every time. Moreover, since the cutting tools are generally located in the middle of the equipment, the operator can only bend down to measure during operation, which further increases the physical burden on the operator. In addition, when operating in the middle of the equipment, the operator needs to be extremely careful to avoid colliding with other structures of the equipment, which undoubtedly increases the safety risk during the operation process.

[0006] Secondly, when the slitting machine slits food packaging bags, waste strips will inevitably be generated. The current technology uses a fan to generate negative pressure and sucks the waste strips into a special container through a pipeline for recycling and reuse.

[0007] However, there will inevitably be bends at the junction of the pipeline and the container and in the pipeline itself. As a plastic material, the food packaging bag has a certain degree of toughness and hardness. When the waste strips are transported in the pipeline under negative pressure, once they reach a bend, due to their physical properties, the waste strips will bend along the shape of the bend. This kind of bending is very likely to cause the waste strips to get stuck at the bend, thus leading to pipeline blockage. Once the pipeline is blocked, the production enterprise has two options. One is to stop the machine for cleaning, which will result in production interruption. In modern industrial production, stopping the machine means a reduction in production efficiency and the inability to complete the order tasks on time. For large-scale production enterprises, every minute of downtime may cause huge economic losses.

[0008] The other option is to continue production and then have the operators clean the production site after production is over. However, during the production process, due to pipeline blockage, the waste strips cannot be normally sucked into the container and will be scattered everywhere in the production site. Therefore, more manpower is required to clean the site after production. It is a cumbersome and time-consuming process to collect the waste strips scattered everywhere.

[0009] Therefore, the present invention proposes a low-energy-consuming and high-efficiency slitter. Summary of the Invention

[0010] The purpose of the present invention is to provide a low-energy-consuming and high-efficiency slitter to solve the problems raised in the above-mentioned background technology.

[0011] To achieve the above purpose, the present invention provides the following technical solution: A low-energy-consuming and high-efficiency slitter, including a machine body. A unwind roller is installed on the outer surface of the machine body. A rewinding unit is installed on the outer surface of the machine body on the side far from the unwind roller. A plurality of slitting knives are installed in the middle of the machine body. A knife distance adjustment and image magnification component is arranged outside the slitting knives for facilitating the operator to adjust the knife distance and facilitating the inspection of the knife distance. The knife distance adjustment and image magnification component includes two symmetrically distributed lead screws, a plurality of symmetrically distributed regulation slots, and a plurality of mating shafts fixedly connected to the outside of the slitting knives.

[0012] The lead screw is used to move the slitting knife thereon through its own rotation, and the threads of the two lead screws are set in opposite directions.

[0013] The mating shaft and the regulation slot make the other slitting knives move synchronously with the slitting knife on the surface of the lead screw through their own limiting functions. The tops of the regulation slots farthest from the center of the machine body are interconnected, so that the operator can slide the slitting knife and the mating shaft and move them away from the slitting area.

[0014] Preferably, the knife distance adjustment and image magnification assembly further includes two downward pressing air cylinders, which are symmetrically and fixedly connected to the surface of the machine body. The bottom of the output shaft of each downward pressing air cylinder is rotatably connected to a shaft body. One end of the two shaft bodies close to each other is fixedly connected to the outer surface of a lead screw, and one end of the two lead screws close to each other is fixedly connected to a central shaft.

[0015] Preferably, the slitting knife closest to the center of the central shaft is rotatably connected to its surface. The slitting knives on both sides of the central slitting knife are threadedly connected to the outer surface of the lead screw, and the remaining slitting knives are symmetrically and slidably connected to the outer surface of the shaft body.

[0016] Preferably, the outer surface of the machine body is symmetrically and fixedly connected with limit groove bodies. A control board is slidably connected inside each limit groove body. Control grooves are symmetrically formed through the surface of the control board, and the mating shafts are slidably connected inside the control grooves.

[0017] Preferably, an upper shaft is rotatably connected to the top of each of the plurality of slitting knives. Radial grooves are symmetrically formed through the surface of the control board. The surface of the upper shaft extends into the radial grooves and is symmetrically and fixedly connected with limit shafts. The limit shafts are slidably connected inside the radial grooves. A receiving platform is fixedly connected to the top of the upper shaft, and an industrial camera is installed on the top of the receiving platform.

[0018] Preferably, an electric control panel is installed outside the machine body. The electric control panel electrically controls the start and stop of the downward pressing air cylinders, and the electric control panel is electrically connected to the industrial camera.

[0019] Preferably, a tension roller group is installed outside the machine body, and a positioning module is installed on the top of the machine body, specifically implemented as a ray locator. A drive system is built in the machine body. The photoelectric module is electrically connected to the electric control panel, and the drive system is electrically controlled by the electric control panel to start and stop.

[0020] Preferably, a spiral suction and compression assembly is arranged below the slitting knife. The spiral suction and compression assembly includes two collection boxes, which are symmetrically installed inside the machine body. A blower is symmetrically installed inside the machine body. The output end of the blower is communicated with the inside of the collection box, and the blower is electrically controlled by the electric control panel to start and stop.

[0021] Preferably, a middle block is arranged below the slitting knife. Fixed rods are fixedly connected between the middle block and the outer surface of the machine body. Suction pipes are fixedly connected to both sides of the middle block. One end of the suction pipe away from the middle block is communicated with the inside of the collection box, and one side of the suction pipe close to the middle block is solid.

[0022] Preferably, a threaded groove is formed on the inner wall of the suction pipe. A plurality of notch grooves are formed through the top of the suction pipe. The top of the suction pipe is fixedly connected with a plurality of rotating frames arranged at equal intervals in an arc shape. Every two of the rotating frames are set as a group, and a bent elliptical wheel is rotatably connected between each group of the rotating frames.

[0023] Preferably, the rewinding unit includes two rewinding rollers.

[0024] Preferably, the tension roller group includes a plurality of tension rollers.

[0025] Preferably, the drive system includes three drive motors and one tension motor.

[0026] Preferably, two knife rollers rotatably connected to the outer surface of the machine body are arranged below the cutting knife.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. By rotating the lead screw, the cutting knives on its surface can move away from or close to each other. During the movement of the cutting knives on the surface of the lead screw, with the cooperation of the adjustment groove and the cooperation shaft, the remaining cutting knives will be driven to move synchronously. In this way, the operator does not need to inspect the cutting knives on both sides separately, which greatly improves the adjustment efficiency and reduces the risk of errors caused by manual operation. Due to the improvement of the adjustment efficiency and the reduction of the error risk, the cutting operation can be carried out more continuously and stably, reducing the situation of production interruption or product quality fluctuation caused by improper adjustment of the distance between the cutting knives. At the same time, this design also improves the operation convenience of the cutting machine. The operator does not need to perform cumbersome bilateral inspection operations, simplifies the operation process, and reduces the working intensity of the operator.

[0028] Compared with the prior art, the traditional cutting machine has many disadvantages in the adjustment of the tool distance. Such as the high cost and complex maintenance of pneumatic adjustment, as well as the high requirements for operators. Once the sensor fails and stops for maintenance, it will seriously affect production. The inaccuracy, time-consuming nature of manual adjustment, and the adverse effects on the physical and safety of operators cannot be ignored. The present invention fundamentally changes this situation and avoids many problems of the traditional adjustment method through the spiral suction and compression components, and has significant advantages in improving production efficiency, reducing costs, and ensuring the safety of operators.

[0029] Among them: In the present invention, the design of the through-opening of the adjustment grooves enables the remaining cutting knives to be far from the center, which can avoid excessive cutting knives from cutting the food packaging bag, thus ensuring the accuracy of cutting. At the same time, the flexibility of this design lies in that the number of cutting knives can be selected according to the sizes of different packaging bags, which not only improves the adaptability of the cutting machine to different products, but also helps to improve product quality, reduce product losses caused by improper cutting, and further enhance production efficiency.

[0030] Among them: Through the setting of the industrial camera, the present invention realizes the function of transmitting the picture to the electric control panel, and the operator can better grasp the adjustment of the distance through the enlarged image. In the operation of traditional cutting machines, the operator often can only adjust the distance of the cutting tool by relying on experience and simple measuring tools. However, with the image transmission and magnification functions of the industrial camera in the present invention, the operator can operate more intuitively and accurately, effectively improving the accuracy and efficiency of cutting.

[0031] In summary, the present invention realizes the function of adjusting the cutting knife through the cooperation of the lead screw and the cutting knife and the setting of structures such as the industrial camera. The design of the spiral suction and compression assembly enables the operator not to need to enter the equipment for debugging, which greatly reduces the time cost of maintenance and debugging. At the same time, it avoids the operation inconvenience and safety risks faced by the operator when entering the equipment. In addition, under the action of the industrial camera, the operator can more intuitively observe the change of the distance, further improving the accuracy of the operation. Moreover, due to the threaded connection between the lead screw and the cutting knife, using the characteristic of screw self-locking, it avoids the problem that each cutting knife in the prior art needs to be equipped with a buckle. This design not only saves more debugging time, but also reduces the cost due to the lack of buckles, improving the performance and economic benefits of the cutting machine from multiple aspects.

[0032] 2. By opening threaded grooves on the inner wall of the suction pipe in the present invention, the waste strips move in a spiral manner when being sucked in. When moving spirally, the waste strips move forward along the pipe while making a circular motion around a virtual cylindrical axis in the pipe. This motion mode changes the force condition of the waste strips in the pipe. When the waste strips reach the bending part, due to their own spiral motion, a lateral force adapted to the curvature of the bending part will be generated, enabling the waste strips to continue to move forward along the bending part and not easily get stuck. This improvement enhances the stability of the waste strip recovery system, helps to continuously and stably suck the waste strips into the container for recycling, and improves the problem of low production efficiency caused by pipe blockage.

[0033] Compared with the prior art, when the current technology recovers waste strips through a pipeline, due to the easy blockage at the bent part of the pipeline, it brings many troubles to production enterprises. Enterprises either stop production for cleaning, which will reduce production efficiency, affect the timely completion of orders, and cause huge economic losses; or continue production and then clean the site, which will increase labor costs and the cleaning process is cumbersome and time-consuming. However, the present invention effectively avoids the problem of pipeline blockage by setting threaded grooves on the inner wall of the pipeline to make the waste strips move spirally, eliminating the need to worry about shutdown due to blockage or subsequent complex cleaning work, greatly improving production efficiency, reducing production costs, and having obvious advantages in overall production benefits.

[0034] Among them: setting a rotatable curved elliptical wheel on the surface of the notch groove can improve the smoothness of the waste strip entering. When the waste strip enters, it will fit on the surface of the curved elliptical wheel and enter the inside of the suction pipe. During this process, due to the elliptical shape of the curved elliptical wheel, depressions will occur on the surface of the waste strip. This depression enables the waste strip to better fit the inner wall of the suction pipe, increasing the degree of fit between the waste strip and the inner wall of the pipeline, reducing the possibility of the waste strip colliding with or getting stuck on the inner wall in the pipeline, thereby further reducing the blockage risk and ensuring the smoothness of the waste strip recovery process.

[0035] While achieving the above effects, the present invention also has the following advantages: Since the waste strips move in a spiral manner inside the suction pipe, the waste strips continuously deform themselves during the movement process. When entering the collection box, this continuous deformation increases the compression rate of the waste strips. The spiral movement makes the waste strips twist and squeeze continuously in the pipeline, and then the waste strips are compressed more tightly. As a result, more waste strips can be accommodated in a unit space, reducing the frequency of cleaning the inside of the collection box. Originally, due to the accumulation of waste strips, it needed to be cleaned multiple times, but now it can be reduced to one cleaning, greatly saving labor costs and cleaning time, and improving the practicality and economy of the entire waste strip recovery system. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a front perspective view of the main structure of the present invention.

[0037] Figure 2 It is a rear perspective view of the main structure of the present invention.

[0038] Figure 3 It is a sectional perspective view of the main structure of the present invention.

[0039] Figure 4 For the present invention Figure 3 The enlarged perspective view of the structure at A in it.

[0040] Figure 5 For the present invention Figure 3 The enlarged perspective view of the structure at B in it.

[0041] Figure 6 For the present invention Figure 3 The enlarged three-dimensional schematic diagram of the structure at position C in the present invention.

[0042] Figure 7 The exploded three-dimensional schematic diagram of the knife distance adjustment and image magnification assembly of the present invention.

[0043] Figure 8 The partial cross-sectional three-dimensional schematic diagram of the spiral suction and compression assembly of the present invention.

[0044] Figure 9 For the present invention Figure 8 The enlarged three-dimensional schematic diagram of the structure at position D in the present invention.

[0045] Figure 10 The three-dimensional schematic diagram of the suction pipe of the present invention.

[0046] In the figure: 11, the machine body; 12, the unwinding roller; 13, the rewinding unit; 14, the slitting knife.

[0047] 2, the knife distance adjustment and image magnification assembly; 21, the downward pressing air cylinder; 22, the shaft body; 23, the lead screw; 24, the middle shaft; 25, the limit groove body; 26, the regulation plate; 27, the regulation groove; 28, the radial groove; 29, the mating shaft; 210, the upper shaft; 211, the receiving table; 212, the industrial camera.

[0048] 3, the spiral suction and compression assembly; 31, the collection box; 32, the fan; 33, the middle block; 34, the suction pipe; 35, the thread groove; 36, the notch groove; 37, the rotating frame; 38, the curved elliptical wheel. Specific embodiments

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0050] It should be noted that the structures and working principles of the rewinding unit 13, the machine body 11, and the tension roller group belong to the prior art, and the drive system only provides a power source for the unwinding roller 12, the rewinding unit 13, and the tension roller group, so it will not be elaborated hereinafter.

[0051] Example 1, please refer to as Figures 1 to 7As shown in the figure, a low-energy consumption and high-efficiency slitter includes a machine body 11. A unwind roll 12 is installed on the outer surface of the machine body 11. A rewinding unit 13 is installed on the outer surface of the machine body 11 on the side away from the unwind roll 12. A plurality of slitting knives 14 are installed in the middle of the machine body 11. A knife distance adjustment and image magnification component 2 for facilitating the operator to adjust the knife distance and facilitating the inspection of the knife distance is arranged outside the slitting knife 14. The knife distance adjustment and image magnification component 2 includes two symmetrically distributed lead screws 23, a plurality of symmetrically distributed control slots 27, and a plurality of mating shafts 29 fixedly connected to the outside of the slitting knife 14.

[0052] The lead screw 23 is used to move the slitting knife 14 thereon by its own rotation, and the threads of the two lead screws 23 are arranged in opposite directions.

[0053] The mating shaft 29 and the control slot 27 make the remaining slitting knives 14 move synchronously with the slitting knife 14 on the surface of the lead screw 23 through their own limiting effects. The tops of the control slots 27 farthest from the center of the machine body 11 are interconnected, so that the operator can slide the slitting knife 14 and the mating shaft 29 and move them away from the slitting area.

[0054] Please refer to as Figures 4 to 6 As shown in the figure, the knife distance adjustment and image magnification component 2 further includes two downward pressing cylinders 21. The two downward pressing cylinders 21 are symmetrically and fixedly connected to the surface of the machine body 11. The bottoms of the output shafts of the downward pressing cylinders 21 are rotatably connected to a shaft body 22. One ends of the two shaft bodies 22 close to each other are fixedly connected to the outer surface of the lead screw 23. One ends of the two lead screws 23 close to each other are fixedly connected to a middle shaft 24. The slitting knife 14 closest to the center of the middle shaft 24 is rotatably connected to its surface. The slitting knives 14 on both sides of the slitting knife 14 at the center are threadedly connected to the outer surface of the lead screw 23. The remaining slitting knives 14 are symmetrically slidably connected to the outer surface of the shaft body 22. The limiting groove bodies 25 are symmetrically and fixedly connected to the outer surface of the machine body 11. The control plates 26 are slidably connected to the inside of the limiting groove bodies 25. The control slots 27 are symmetrically penetrated and opened on the surface of the control plates 26. The mating shafts 29 are slidably connected to the inside of the control slots 27. The tops of a plurality of slitting knives 14 are rotatably connected to an upper shaft 210. Radial slots 28 are symmetrically opened on the surface of the control plate 26 through which it penetrates. Limiting shafts are symmetrically fixedly connected to the surface of the upper shaft 210 extending into the radial slots 28. The limiting shafts are slidably connected to the inside of the radial slots 28. A receiving platform 211 is fixedly connected to the top of the upper shaft 210. An industrial camera 212 is installed on the top of the receiving platform 211.

[0055] It should be noted that an electric control panel is installed on the outside of the body 11, and the electric control panel electrically controls the start and stop of the downward pressure cylinder 21. The electric control panel is electrically connected to the industrial camera 212. A tension roller group is installed on the outside of the body 11. A positioning module is installed on the top of the body 11, which is specifically implemented as a ray positioner. The body 11 has a built-in drive system, and the photoelectric module is electrically connected to the electric control panel. The drive system is electrically controlled to start and stop by the electric control panel. The rewinding unit 13 includes two rewinding rollers, which are symmetrically installed on the outer surface of the body 11 in an upper and lower position. The tension roller group includes a plurality of tension rollers, and the plurality of tension rollers are It is rotatably connected to the outer surface of the machine body 11, and the driving system includes three driving motors and a tension motor. The three driving motors are respectively installed on the unwinding roller 12 and the two rewinding rollers. The tension motor is installed on any one of the tension rollers, and the other tension rollers are connected to the tension motor through belt drive. Two knife rollers rotatably connected to the outer surface of the machine body 11 are arranged below the slitting knife 14, and the center of the blade of the slitting knife 14 is between the two knife rollers. A scale line is arranged on the top of the upper shaft 210, which is used for the industrial camera 212 to enlarge and transmit the image so that the operator can intuitively observe the moving distance of the slitting knife 14.

[0056] Please refer to Figure 2 and Figure 4 As shown, it should be noted that the shaft body 22 near the electric control panel is cut off on the side near the downward pressure cylinder 21, and four bevel gears and a cross rod are provided at the cut portion. The bevel gears on the left and right sides are rotatably connected to the two cut surfaces of the shaft body 22, and the four bevel gears are meshed with each other. At the same time, the bevel gears on the left and right sides are rotatably connected to the two ends of the cross rod on the side close to each other, and the front and rear sections of the cross rod are rotatably connected to the surfaces of the bevel gears on the front and rear sides respectively. At the same time, the bevel gear on the front side extends to the side near the electric control panel and is fixedly connected to a hand wheel. The bevel gears, the cross rod and the hand wheel can form a power transmission system. The operator only needs to turn the hand wheel to rotate the shaft body 22 through the power transmission of the bevel gears.

[0057] Specifically, the raw material roll of the food packaging bag to be cut is first installed on the unwinding roller 12 to ensure that the material roll can be unwound smoothly. The material released from the unwinding roller 12 is then passed around the two knife rollers, and the material continues to pass around the tension rollers in the tension roller group to keep the tension of the material stable during the slitting process. Finally, the material passing around the tension roller group is guided to the two rewinding rollers respectively.

[0058] On the rewinding roller, use tape to ensure that the material end is firmly adhered to the rewinding roller surface, preparing for the subsequent rewinding process.

[0059] At this time, the operator needs to turn the handwheel, which transmits power to the shaft 22 through the bevel gear and the cross rod, and makes it rotate. At this time, the rotation of the shaft 22 drives the downward pressure cylinder 21 and the screw rod 23 to rotate synchronously. Since the middle slitting knife 14 is limited by the upper shaft 210, the middle slitting knife 14 will not move, and the slitting knife 14 on the surface of the screw rod 23 will start to slide on the surface of the screw rod 23 due to the cooperation of the thread and the limitation of the upper shaft 210.

[0060] Furthermore, during the movement of the slitting knife 14 on the surface of the screw rod 23, the matching shaft 29 on its surface will conflict with the regulating groove 27. Since the regulating plate 26 is limited by the limiting groove 25 and can only move up and down, in order to adapt to the movement of the slitting knife 14 on the surface of the screw rod 23, the regulating groove 27 inside the regulating plate 26 will continuously conflict with the matching shaft 29, causing the regulating plate 26 to slide vertically. Similarly, the slitting knives 14 on both sides will also move synchronously.

[0061] During this process, the industrial camera 212 on the receiving table 211 will transmit the enlarged image to the electronic control panel in real time. At this time, the operator can judge the moving distance of the slitting knife 14 based on the enlarged image and the scale line on the top of the upper shaft 210. At the same time, the operator also needs to check the moving distance of the slitting knife 14 with the size of the food packaging bag on the list.

[0062] When the check is completed, the operator can control the extension of the output shaft of the collection box 31 through the electrical control panel. At this time, the collection box 31 will drive the remaining structures of the spiral suction and compression assembly 3 to descend. At this time, the slitting knife 14 will contact the surface of the food packaging bag. Then the operator can start the drive system and other electrical appliances, and the food packaging bag can be transported, and the slitting effect can be achieved under the action of the slitting knife 14.

[0063] It should be noted that when the size of the food packaging bag is too large and the slitting knives 14 on both sides are not needed, the operator adjusts the distance of the slitting knives 14 according to the above steps. When the matching shaft 29 moves to the top of the regulating groove 27, that is, the part where the two regulating grooves 27 are connected to each other, the operator can manually slide the slitting knives 14 on both sides and slide them to the side of the regulating groove 27 farthest from the center. At this time, the slitting knife 14 is located at the end of the regulating plate 26, and the slitting knife 14 will not cut the food packaging bag.

[0064] Example 2, based on Example 1, please refer to Figures 8 to 10As shown in the figure, a spiral suction and compression assembly 3 is provided below the slitting knife 14. The spiral suction and compression assembly 3 includes two collection boxes 31. The two collection boxes 31 are symmetrically installed inside the machine body 11. Inside the machine body 11, a blower 32 is symmetrically installed. The output end of the blower 32 is communicated with the inside of the collection box 31. The blower 32 is electrically controlled by the electric control panel to start and stop. A middle block 33 is provided below the slitting knife 14. Fixed rods are fixedly connected between the middle block 33 and the outer surface of the machine body 11. Suction pipes 34 are fixedly connected to both sides of the middle block 33. One end of the suction pipe 34 away from the middle block 33 is communicated with the inside of the collection box 31. The side of the suction pipe 34 close to the middle block 33 is solid. Thread grooves 35 are provided on the inner wall of the suction pipe 34. A plurality of notch grooves 36 are provided through the top of the suction pipe 34. A plurality of rotating frames 37 are fixedly connected to the top of the suction pipe 34 in an arc-shaped equidistant arrangement. Every two rotating frames 37 are set as a group, and a bent elliptical wheel 38 is rotatably connected between each group of rotating frames 37.

[0065] Specifically, during the process of slitting food packaging bags, waste is inevitably generated. As the slitting operation progresses, the waste part of the food packaging bag starts to gradually slide down due to its own gravity after passing through the knife roller until it reaches the suction pipe 34 and the notch grooves 36. Since it has been mentioned in Embodiment 1 that the electric control panel has started the electrical appliances of the entire slitter, including the blower 32, at this time, a strong negative pressure is generated inside the collection box 31 by the blower 32. The negative pressure acts on the end of the waste through the suction pipe 34 and the notch grooves 36 provided thereon, so that the waste is effectively sucked into the suction pipe 34 and the notch grooves 36.

[0066] When the waste enters the suction pipe 34, it will come into contact with the bent elliptical wheel 38 on its surface. Then, when the waste enters the notch grooves 36, it will closely fit the bent elliptical wheel 38 and conform to the concave deformation of the bent elliptical wheel 38 itself. This deformation not only helps the waste to fit more closely to the inner wall of the suction pipe 34, but also lays the foundation for its subsequent spiral movement.

[0067] When the waste fits the bent elliptical wheel 38 and deforms, it will enter the thread groove 35. Since the thread groove 35 is provided inside the suction pipe 34, when the waste is attracted by the negative pressure, a part of the air will move along the track of the thread groove 35, that is, a spiral ring is formed on the inner wall of the suction pipe 34. Then, the spiral ring will pull the waste to move spirally, thereby generating a lateral force that adapts to the curvature of the bent part of the suction pipe 34. This lateral force enables the waste to continue to move forward along the bent part instead of accumulating or blocking at the bent part. Therefore, the existence of the thread groove 35 not only ensures the smooth movement of the waste, but also greatly improves the efficiency of waste collection.

[0068] It should be noted that the waste material in spiral motion is continuously bent and compressed inside the suction pipe 34, so the volume of the waste material itself gradually decreases. Therefore, when it enters the collection box 31, more waste material can be accommodated in a unit space. This compression effect not only improves the collection density of the waste material, but also reduces the occupied space of the waste material during the collection process. At the same time, since the waste material moves in a spiral manner, it is not easy to block in the suction pipe 34 or the collection box 31, thus ensuring the continuity and stability of waste material collection.

[0069] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0070] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-energy-consumption and high-efficiency slitting machine, comprising a machine body (11), a reeling roller (12) being mounted on the outer surface of the machine body (11), a rewinding unit (13) being mounted on the outer surface of a side of the machine body (11) away from the reeling roller (12), and a plurality of slitting knives (14) being mounted in the middle of the machine body (11), characterized in that: The outer side of the slitting knife (14) is provided with a knife distance adjustment and image magnification component (2) for facilitating an operator to adjust the knife distance and to facilitate checking the knife distance. The knife distance adjustment and image magnification component (2) comprises two symmetrically distributed screw rods (23), a plurality of symmetrically distributed regulating grooves (27), and a plurality of matching shafts (29) fixedly connected to the outside of the slitting knife (14); the screw rod (23) is used to move the slitting knife (14) thereon by rotating itself, and the threads of the two screw rods (23) are arranged in opposite directions; the matching shaft (29) and the regulating groove (27) enable the remaining slitting knives (14) to move synchronously with the slitting knife (14) on the surface of the screw rod (23) through their own limiting effect, and the tops of the regulating groove (27) farthest from the center of the body (11) are interconnected, so that the operator can slide the slitting knife (14) and the matching shaft (29) away from the slitting area; A spiral suction and compression assembly (3) is provided below the slitting knife (14), the spiral suction and compression assembly (3) comprising two collection boxes (31), the two collection boxes (31) being symmetrically mounted inside the machine body (11), a fan (32) being symmetrically mounted inside the machine body (11), the output end of the fan (32) being in communication with the inside of the collection box (31), the fan (32) being electrically controlled to start and stop by an electric control panel; A middle block (33) is arranged below the slitting knife (14), and a fixing rod is fixedly connected between the middle block (33) and the outer surface of the machine body (11), and suction pipes (34) are fixedly connected to both sides of the middle block, and one end of the suction pipe (34) away from the middle block (33) is connected to the inside of the collection box (31), and the side of the suction pipe (34) close to the middle block (33) is solid; A thread groove (35) is provided on the inner wall of the suction pipe (34), a plurality of notched grooves (36) are provided through the top of the suction pipe (34), and a plurality of rotating frames (37) are fixedly connected to the top of the suction pipe (34) at equal intervals and arranged in an arc shape, each two rotating frames (37) are arranged as a group, and a curved elliptical wheel (38) is rotatably connected between each group of rotating frames (37).

2. A low energy consumption and high efficiency slitting machine according to claim 1, characterized in that: The blade spacing adjustment and image magnification assembly (2) further comprises two downward pressure cylinders (21), the two downward pressure cylinders (21) are symmetrically fixedly connected to the surface of the machine body (11), the bottoms of the output shafts of the downward pressure cylinders (21) are rotatably connected to shaft bodies (22), the ends of the two shaft bodies (22) close to each other are fixedly connected to the outer surface of the screw rod (23), and the ends of the two screw rods (23) close to each other are fixedly connected to the central shaft (24).

3. A low energy consumption and high efficiency slitting machine according to claim 2, characterized in that: The slitting knife (14) closest to the center of the central axis (24) is rotatably connected to its surface, the slitting knives (14) on both sides of the slitting knife (14) at the center are threadedly connected to the outer surface of the screw rod (23), and the remaining slitting knives (14) are symmetrically slidably connected to the outer surface of the shaft body (22).

4. A low energy consumption and high efficiency slitting machine according to claim 1, characterized in that: The outer surface of the machine body (11) is symmetrically fixedly connected to a limit groove body (25), the inside of the limit groove body (25) is slidably connected to an adjustment plate (26), the adjustment groove (27) is symmetrically penetrated and opened on the surface of the adjustment plate (26), and the matching shaft (29) is slidably connected to the inside of the adjustment groove (27).

5. A low energy consumption and high efficiency slitting machine according to claim 4, characterized in that: The tops of several of the slitting knives (14) are rotatably connected to an upper shaft (210), a radial groove (28) is symmetrically opened on the surface of the regulating plate (26), the surface of the upper shaft (210) extends to the inside of the radial groove (28) and is symmetrically fixedly connected to a limiting shaft, the limiting shaft is slidably connected to the inside of the radial groove (28), the top of the upper shaft (210) is fixedly connected to a receiving platform (211), and an industrial camera (212) is installed on the top of the receiving platform (211).

6. The low energy consumption and high efficiency slitting machine according to claim 1, characterized in that: An electric control panel is installed outside the machine body (11), the electric control panel electrically controls the start and stop of the downward pressure cylinder (21), and the electric control panel is electrically connected to the industrial camera (212).

7. The low energy consumption and high efficiency slitting machine according to claim 1, characterized in that: A tension roller group is installed on the outside of the machine body (11), a photoelectric module is installed on the top of the machine body (11), a drive system is built into the machine body (11), the photoelectric module is electrically connected to an electric control panel, and the drive system is electrically controlled to start and stop by the electric control panel.

Images