A paper-plastic composite bag cutting device and its usage method

Abstract

The present invention relates to the technical field of paper-plastic composite bag processing, and specifically relates to a paper-plastic composite bag cutting device and a using method thereof, including a housing and a digital display control panel. On both sides inside the housing, a set of first guide rollers and a set of second guide rollers are respectively arranged. A plurality of the first guide rollers and the second guide rollers are both arranged in a uniformly distributed manner along the up-and-down direction, and the first guide rollers and the second guide rollers are arranged in a vertically crossed manner with respect to each other. The housing is provided with two linear movement driving components for respectively driving the first guide rollers and the second guide rollers to move crosswise in the horizontal direction. Through the mutual cooperation and coordination among the feeding roller assembly, the heat-sealing and cutting assembly, the linear movement driving components, the ventilation and guiding assembly, the clamping and positioning structure, the first guide rollers and the second guide rollers, etc., it is possible to simultaneously perform heat-sealing and shearing to form multiple finished composite bag bodies at one time, thereby improving the efficiency of heat-sealing and cutting.

Description

Technical Field

[0001] The present invention relates to the technical field of paper-plastic composite bag processing, and specifically relates to a paper-plastic composite bag cutting device and a using method thereof. Background Art

[0002] A paper-plastic composite bag is composed of plastic and kraft paper. Usually, the plastic layer is a flat wire woven fabric with polypropylene (PP) or polyethylene (PE) as the base material, and the kraft paper is a refined composite special kraft paper, which has the characteristics of high strength, good waterproof performance, and beautiful appearance. It is one of the most popular packaging materials and is widely used in industries such as plastic raw materials, cement, feed, chemical industry, and fertilizer.

[0003] A paper-plastic composite bag cutting machine and a manufacturing and cutting method with the publication number of CN111152511B include a conveying device, a cutting device, and a sewing edge device. The cutting device is installed on the right end face of the conveying device, and the sewing edge device is installed on the right side of the cutting device.

[0004] A paper-plastic composite bag heat-sealing treatment device with the publication number of CN111231420B includes a mounting frame, a glue coating device, a heat-sealing device, and a cutting mechanism. A conveying channel is installed in the middle of the mounting frame, the glue coating device is installed at the left end of the mounting frame, the heat-sealing device is installed in the middle of the mounting frame, and the cutting mechanism is installed at the right end of the mounting frame. Summary of the Invention

[0005] The purpose of the present invention is to provide a paper-plastic composite bag cutting device and a using method thereof to solve the above problems.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A paper-plastic composite bag cutting device provided by the present invention includes a housing and a digital display control panel. A set of first guide rollers and a set of second guide rollers are respectively arranged on both sides inside the housing. The first guide rollers and the second guide rollers are both provided with a plurality of evenly distributed in the up and down direction, and the first guide rollers and the second guide rollers are distributed in a vertically crossed manner;

[0008] The housing is provided with two linear movement driving components for respectively driving the first guide rollers and the second guide rollers to move horizontally in a crossed manner. When the two linear movement driving components respectively drive the first guide rollers and the second guide rollers to move, a gap channel for passing through the composite bag body can be formed between the first guide rollers and the second guide rollers, and continuous S-shaped turning support for the composite bag body can be realized;

[0009] A clamping and positioning structure for positioning and clamping and fixing the end of the composite bag body is arranged below the first guide rollers and the second guide rollers;

[0010] On one side of each linear movement drive assembly, there is a heat-sealing and cutting assembly for cooperating with the first guide roller and the second guide roller for heat-sealing and cutting respectively.

[0011] Above the first guide roller and the second guide roller, there is a feeding roller assembly for feeding the composite bag body. At the feeding roller assembly, there is a ventilation guiding assembly for guiding the composite bag body to move downward and blowing it down after cutting.

[0012] Furthermore, the linear movement drive assembly includes a frame with a rectangular outer contour. On the frame, a number of groups of wheel support rods are fixedly arranged in the up and down direction. Each group of wheel support rods includes two that are distributed in parallel. The first guide roller and the second guide roller are respectively rotatably arranged between the corresponding two wheel support rods. Inside the outer shell, a second electric telescopic rod is fixedly arranged. The push rod head end of the second electric telescopic rod is fixedly connected to the frame through a support ear. The output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0013] Furthermore, on the upper and lower sides of the second electric telescopic rod, there are guide shaft rods symmetrically distributed with it as the center. On the opposite sides of the two guide shaft rods, there are support wheels. On the frame, there is a wheel frame for supporting and rotating the support wheels. An annular groove for abutting and limiting cooperation with the guide shaft rod is formed on the outer side of the support wheel along its circumferential direction.

[0014] Furthermore, the heat-sealing and cutting assembly includes a seat plate. Inside the outer shell, a first electric telescopic rod for driving the seat plate to move is fixedly arranged. On the seat plate, a bracket is fixedly arranged. On the bracket, electric heat sealers corresponding to the first guide roller and the second guide roller are respectively arranged in the up and down direction. An arc-shaped groove for abutting and cooperating with the first guide roller and the second guide roller is formed on the electric heat sealer. The output end of the digital display control panel is respectively electrically connected to the input ends of the first electric telescopic rod and the electric heat sealer.

[0015] Furthermore, a knife-passing hole groove for sliding through a cutting knife is formed on each electric heat sealer. On the bracket, a first air cylinder for driving the cutting knife to slide in the knife-passing hole groove is fixedly arranged. On both sides of the first electric telescopic rod, there are two first guide rods symmetrically distributed with it as the center. One end of the two first guide rods is fixedly connected to the seat plate. The other ends of the two guide rods are slidably connected to first guide sliding holes formed at corresponding positions on the side wall of the outer shell. The output end of the digital display control panel is electrically connected to the input end of the first air cylinder.

[0016] Furthermore, the feed roller assembly includes two parallel transmission rollers, the ends of the two transmission rollers are connected to each other through a gear transmission mechanism, the gear transmission mechanism is composed of two gears meshing with each other, a gear box is arranged on the outside of the two gears, and the gear box is fixed on the inner wall of the outer shell, a first motor for driving the rotation of one of the gears is arranged at the shaft end of one of the gears, and the output end of the digital display control panel is electrically connected to the input end of the first motor.

[0017] Furthermore, the ventilation guide assembly includes two air outlet ducts arranged below the transmission roller, the outer contour of the air outlet duct is cylindrical, and one end of each of the air outlet ducts is provided with a second motor for driving its deflection, and the other end of the air outlet duct is connected to an air guide joint via a spring air guide pipe, and the air guide joint is fixedly arranged on the outer shell, and an air outlet hole is opened on the lower side of the air outlet duct, and the inner side contour of the air outlet hole is in a straight line shape and the length direction is consistent with the axial direction of the air outlet duct, and the output end of the digital display control panel is electrically connected to the input end of the second motor.

[0018] Furthermore, the clamping and material fixing structure includes two clamping plates arranged opposite to each other, and a second cylinder for driving the movement of each clamping plate is arranged on one side of each clamping plate, and the second cylinder is fixedly arranged on the outer shell through a cylinder seat, and two second guide rods symmetrically distributed with the second cylinder as the center are arranged on both sides of the second cylinder, one end of the two second guide rods is fixedly connected to the clamping plate, and the other end of the two second guide rods is slidably connected to the second guide slide hole opened at the corresponding position of the cylinder seat, and photoelectric sensors for detecting the position of the composite bag body are arranged on the two clamping plates, and the output end of the digital display control panel is electrically connected to the input end of the second cylinder, and the output end of the photoelectric sensor is electrically connected to the input end of the digital display control panel.

[0019] Furthermore, the top side of the shell is provided with a bag insertion opening for passing a composite bag body into the shell, the lower side of the shell is provided with a bag outlet for moving the composite bag body out, a conveyor for transporting and moving the composite bag body is provided at the bag outlet, and the output end of the digital display control panel is electrically connected to the input end of the conveyor.

[0020] A method for using a paper-plastic composite bag cutting device:

[0021] S1: Insert the composite bag into the equipment from the bag-passing opening on the top side of the shell, and start the first motor on the digital display control panel. The first motor drives the two transmission rollers to rotate synchronously in opposite directions through the gear transmission mechanism, thereby transmitting the composite bag downward;

[0022] S2: The digital display control panel starts the second motor to control the deflection angle of the air outlet pipe, so that the air blown out from the air outlet holes can guide the composite bag body, enabling the composite bag body to smoothly move down through the gap channel formed between the first guide roller and the second guide roller;

[0023] S3: When the composite bag body is transmitted between the two clamping plates below the first guide roller and the second guide roller, the photoelectric sensor detects the position of the composite bag body. After receiving the signal, the digital display control panel controls the second air cylinder to drive the two clamping plates to move relatively, positioning and clamping the end of the composite bag body;

[0024] S4: The digital display control panel starts the second electric telescopic rod to adjust the position of the frame in the linear movement driving component, enabling the horizontal cross movement between the first guide roller and the second guide roller, and realizing continuous S-shaped turning support for the composite bag body;

[0025] S5: The digital display control panel controls the first electric telescopic rod to drive the seat plate to move, making the heat sealer on the bracket abut and cooperate with the first guide roller and the second guide roller to heat-seal the composite bag body. During the heat-sealing process, the digital display control panel controls the first air cylinder to drive the cutting knife to slide in the knife-piercing hole groove to cut the composite bag body, thereby synchronously completing the heat-sealing and shearing operations. The heat sealer heat-seals the composite bag body on one side of the cutting knife, so that when shearing, one end of the finished bag body is closed and the other end is open;

[0026] S6: After the cutting is completed, the air outlet holes of the ventilation guiding component continue to blow air to assist the cut composite bag body to fall. The digital display control panel controls the conveyor to start, and moves the cut composite bag body out of the housing from the bag outlet.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. Through the mutual cooperation and coordination among the feeding roller assembly, heat-sealing and cutting assembly, linear movement driving assembly, ventilation guiding assembly, clamping and positioning structure, the first guide roller and the second guide roller, etc., it is possible to simultaneously heat-seal and cut to form multiple finished composite bag bodies at one time, improving the efficiency of heat-sealing and cutting;

[0029] 2. The ventilation guiding assembly can blow air on the cut composite bag body while guiding the feeding of the composite bag body by the feeding roller assembly, assisting the cut composite bag body to fall, so that after the composite bag bodies are stacked, they are transported out of the housing by the conveyor;

[0030] 3. The heat-sealing and cutting assembly can cooperate with the first guide roller and the second guide roller to heat-seal the composite bag body and at the same time can also cut the composite bag body on one side of the heat-sealing position, thereby realizing the synchronous progress of heat-sealing and cutting and improving the efficiency again;

[0031] 4. The clamping and positioning structure located below the first and second material guiding wheels can position, clamp and fix the end of the composite bag body. During the process of the linear movement driving component driving the material guiding wheels to move, it needs to cooperate with the clamping and positioning structure to ensure that the end of the composite bag body can be accurately positioned and fixed when the composite bag body is being transported, heat-sealed and cut, preventing the composite bag body from moving or shifting during the processing, so as to ensure the accuracy and quality of heat-sealing and cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 is the front view structural schematic diagram of the present invention;

[0034] Figure 2 is the present invention Figure 1 left view structural schematic diagram;

[0035] Figure 3 is the present invention Figure 1 three-dimensional structural schematic diagram;

[0036] Figure 4 is the present invention Figure 2 A-A sectional structural schematic diagram;

[0037] Figure 5 is the present invention Figure 4 local enlarged structural schematic diagram at B;

[0038] Figure 6 is the present invention Figure 4 local enlarged structural schematic diagram at C;

[0039] Figure 7 is the present invention Figure 4 local enlarged structural schematic diagram at D;

[0040] Figure 8 is the first-direction three-dimensional internal structural schematic diagram of the present invention;

[0041] Figure 9 is the present invention Figure 8 local enlarged structural schematic diagram at E;

[0042] Figure 10 is the second-direction three-dimensional internal structural schematic diagram of the present invention;

[0043] Figure 11 is the present inventionFigure 10 Partial enlarged structural schematic diagram at F;

[0044] Figure 12 It is a three-dimensional structural schematic diagram of the ventilation guiding component of the present invention.

[0045] Description of reference numerals: 1. Outer shell; 101. Bag outlet; 102. Bag threading opening; 103. Ventilation and heat dissipation groove; 2. Feeding roller assembly; 201. First motor; 202. Transmission roller; 203. Gear box; 204. Gear; 205. Roller shaft; 3. Heat sealing and cutting component; 301. Seat plate; 302. Bracket; 303. First cylinder; 304. First electric telescopic rod; 305. First guide rod; 306. Knife seat; 307. Cutting knife; 308. Electric heat sealer; 309. Knife threading hole groove; 4. Linear movement driving component; 401. Frame; 402. Second electric telescopic rod; 403. Wheel support rod; 404. Wheel frame; 405. Support wheel; 406. Annular groove; 407. Guide shaft rod; 408. Ear; 5. Conveyor; 6. Ventilation guiding component; 601. Air outlet pipe; 602. Air outlet hole; 603. Spring air guide pipe; 604. Air guide joint; 605. Second motor; 7. Clamping and positioning structure; 701. Second cylinder; 702. Clamping plate; 703. Photoelectric sensor; 704. Cylinder seat; 8. First material guiding wheel; 9. Second material guiding wheel; 10. Composite bag body; 11. Limit sleeve; 12. Digital display control panel. Detailed implementation manners

[0046] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. 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 implementation manners obtained by those of ordinary skill in the art without creative efforts fall within the scope protected by the present invention.

[0047] See Figures 1 - 12 As shown, the present invention provides a paper-plastic composite bag cutting device, with the outer shell 1 as the main support structure. The digital display control panel 12 is installed on the outer surface of the outer shell 1, which is convenient for operators to set parameters and control the device. The digital display control panel 12 is connected to each electrical component inside the device through wires to achieve precise control of the device operation.

[0048] On the opposite inner side walls of the outer shell 1, a set of material guiding wheels is installed respectively. One set is the first material guiding wheels 8, and the other set is the second material guiding wheels 9. Each set of material guiding wheels includes several individuals. The material guiding wheels in the first material guiding wheel set 8 are arranged at equal distances in the vertical direction, and the same is true for the second material guiding wheel set 9. Moreover, the first material guiding wheels 8 and the second material guiding wheels 9 are staggered with each other in the vertical direction; two linear movement driving components 4 are equipped in the outer shell 1, which are respectively responsible for driving the first material guiding wheels 8 and the second material guiding wheels 9 to move crosswise in the horizontal direction. When the two linear movement driving components 4 drive and move the first material guiding wheels 8 and the second material guiding wheels 9 respectively, a gap channel for passing through the composite bag body 10 can be formed between the first material guiding wheels 8 and the second material guiding wheels 9, and continuous S-shaped turning support for the composite bag body 10 can be realized; a clamping and positioning structure 7 for positioning and clamping the end of the composite bag body 10 is arranged below the first material guiding wheels 8 and the second material guiding wheels 9; a heat sealing and cutting component 3 for cooperating with the first material guiding wheels 8 and the second material guiding wheels 9 for heat sealing and cutting is arranged on one side of each linear movement driving component 4; a feeding roller component 2 for feeding the composite bag body 10 is arranged above the first material guiding wheels 8 and the second material guiding wheels 9, and a ventilation guiding component 6 for guiding the composite bag body 10 to move downward and blowing it downward after cutting is arranged at the feeding roller component 2.

[0049] See the attached drawings in the specification Figure 8 、 Figure 9 、 Figure 10 and Figure 11 As shown in, the linear movement driving component 4 includes a frame 401 with a rectangular outer contour. A number of groups of wheel support rods 403 are fixedly arranged on the frame 401 in the up and down direction. Each group of wheel support rods 403 includes two arranged in parallel. The first material guiding wheels 8 and the second material guiding wheels 9 are respectively rotatably arranged between the corresponding two wheel support rods 403. During the transmission of the composite bag body 10, the flexible rotation of the first material guiding wheels 8 and the second material guiding wheels 9 can reduce the frictional resistance between the composite bag body 10 and the material guiding wheels, avoid damage to the composite bag body 10 due to excessive friction, and at the same time help improve the transmission efficiency and accuracy of the composite bag body 10. A second electric telescopic rod 402 is fixedly arranged on the inner side of the outer shell 1. The push rod head end of the second electric telescopic rod 402 is fixedly connected to the frame 401 through a support ear 408. The output end of the digital display control panel 12 is electrically connected to the input end of the second electric telescopic rod 402. Guide shafts 407 are symmetrically distributed on the upper and lower sides of the second electric telescopic rod 402 with it as the center. Support wheels 405 are arranged on the opposite sides of the two guide shafts 407. A wheel frame 404 for supporting and rotating the support wheels 405 is fixedly arranged on the frame 401. An annular groove 406 for abutting and limiting cooperation with the guide shafts 407 is formed on the outer side of the support wheels 405 along the circumferential direction.

[0050] The linear movement driving assembly 4 is closely fitted with the first material guiding wheel 8 and the second material guiding wheel 9. By driving the horizontal cross movement of the material guiding wheels, a gap channel for passing through the composite bag body 10 can be formed between the first material guiding wheel 8 and the second material guiding wheel 9. And when the composite bag body 10 passes through, it can realize continuous S-shaped turning support for the composite bag body 10, so that the transmission path and posture of the composite bag body 10 can be adjusted as needed, enabling it to be stably and accurately transmitted in the equipment, and making preparations for subsequent heat sealing and the processes such as the cutting size of the composite bag body 10.

[0051] The clamping and positioning structure 7 located below the first material guiding wheel 8 and the second material guiding wheel 9 is used to position and clamp the end of the composite bag body 10. During the process of the linear movement driving assembly 4 driving the material guiding wheels to move, it needs to cooperate with the clamping and positioning structure 7 to ensure that when the composite bag body 10 is transmitted, heat sealed and cut, its end can be accurately positioned and fixed, preventing the composite bag body 10 from moving or shifting during the processing, so as to ensure the accuracy and quality of heat sealing and cutting.

[0052] See the attached instructions Figure 4 and Figure 6 As shown, the heat sealing and cutting assembly 3 includes a seat plate 301. A first electric telescopic rod 304 for driving the movement of the seat plate 301 is fixedly arranged in the housing 1. A bracket 302 is fixedly arranged on the seat plate 301. Electric heat sealers 308 corresponding to the first material guiding wheel 8 and the second material guiding wheel 9 one by one are respectively arranged on the bracket 302 in the up and down direction. Each electric heat sealer 308 has an independent heating element and temperature control system, which is well-known to those skilled in the art using the prior art. An arc-shaped groove for abutting and cooperating with the first material guiding wheel 8 and the second material guiding wheel 9 is formed on the electric heat sealer 308. The curvature and size of the arc-shaped groove are precisely calculated and precisely match the outer contours of the first material guiding wheel 8 and the second material guiding wheel 9, so as to ensure that during the heat sealing operation, the electric heat sealer 308 can closely and evenly abut and cooperate with the material guiding wheel. The output ends of the digital display control panel 12 are respectively electrically connected to the input ends of the first electric telescopic rod 304 and the electric heat sealer 308. When the composite bag body 10 is conveyed between the material guiding wheels, the digital display control panel 12 controls the first electric telescopic rod 304 to push the seat plate 301 to move, so that the electric heat sealer 308 approaches and fits the material guiding wheel, and at the same time starts the heating function of the electric heat sealer 308 to perform heat sealing treatment on the composite bag body 10.

[0053] A knife-through hole groove 309 for sliding through the cutting knife 307 is formed on each heat sealing device 308. A first cylinder 303 for driving the cutting knife 307 to slide in the knife-through hole groove 309 is fixedly arranged on the bracket 302. Two first guide rods 305 symmetrically distributed with the first electric telescopic rod 304 as the center are arranged on both sides of the first electric telescopic rod 304. One ends of the two first guide rods 305 are fixedly connected to the seat plate 301 with each other, and the other ends of the two guide rods 305 are slidably connected to the first guide sliding holes formed at corresponding positions on the side wall of the housing 1. The output end of the digital display control panel 12 is electrically connected to the input end of the first cylinder 303.

[0054] See the attached Figure 4 , Figure 5 and Figure 8As shown, the feeding roller assembly 2 is composed of two transmission rollers 202. The two transmission rollers 202 are distributed parallel to each other inside the housing 1 to ensure the stability and uniformity of the composite bag body 10 during the transmission process. The ends of the two transmission rollers 202 are connected to each other through a gear transmission mechanism. The gear transmission mechanism consists of two gears 204 with the same size and tightly meshing with each other. Each gear 204 is fixed to the corresponding shaft end of the transmission roller 202 through a flat key or other suitable key connection method to ensure synchronous rotation between the gear 204 and the transmission roller 202 and effectively transmit torque. When one of the gears 204 starts to rotate under the action of external power, due to the meshing relationship between the two gears 204, the other gear 204 will rotate synchronously, thereby driving the transmission roller 202 connected thereto to rotate synchronously, ensuring that the two transmission rollers 202 transmit the composite bag body 10 at the same rotational speed and stable linear speed, and avoiding adverse phenomena such as stretching and twisting of the composite bag body 10 caused by inconsistent rotational speeds. A gearbox 203 is provided outside the two gears 204. The gearbox 203 is made of high-strength metal materials and has good sealing performance, which can effectively prevent dust, impurities, etc. from entering the internal part of the gear transmission mechanism, avoid abrasion of the tooth surfaces of the gears 204, and extend the service life of the gear transmission mechanism. The inside of the gearbox 203 is filled with lubricating oil. The lubricating oil can form a uniform oil film between the tooth surfaces during the rotation of the gears 204, playing a role in lubrication and reducing friction, reducing energy loss during the transmission process, improving the transmission efficiency, and at the same time taking away the heat generated during the operation of the gears 204 to ensure that the gear transmission mechanism works within an appropriate temperature range. The gearbox 203 is firmly installed on the inner side wall of the housing 1 through bolts or other reliable fixing methods to ensure that it does not displace or shake during the operation of the equipment. At the shaft end of one of the gears 204, a first motor 201 for driving its rotation is connected. The first motor 201 is the power source of the feeding roller assembly 2 and can be an AC asynchronous motor or a DC motor, which can provide sufficient torque and rotational speed according to the operation requirements of the equipment. The first motor 201 is rigidly connected to the shaft end of the gear 204 through a coupling or other suitable connecting device to ensure that the power output by the motor can be efficiently and stably transmitted to the gear 204, thereby driving the entire gear transmission mechanism and the transmission roller 202 to operate. The digital display control panel 12 realizes precise control of the transmission speed and transmission direction of the feeding roller assembly 2 by controlling the operation of the first motor 201.

[0055] See the attached drawings of the specification Figure 5 、 Figure 10 、 Figure 11 and Figure 12As shown, the ventilation guiding assembly 6 is mainly composed of two air outlet pipes 601, which are respectively arranged directly below the two transmission rollers 202. The aim is to make the most of the air flow to effectively guide the composite bag body 10. The two air outlet pipes 601 are parallel to each other, and their axes are parallel to the axes of the transmission rollers 202 to ensure that the composite bag body 10 can be evenly affected by the air flow during the transmission process.

[0056] The air outlet pipes 601 are made of strong and durable metal materials, and their outer contour is designed in a cylindrical shape. A second motor 605 dedicated to driving its deflection is installed at one end of each air outlet pipe 601. The second motor 605 is selected as a servo motor or a stepper motor to achieve flexible deflection of the air outlet pipe 601 within a certain angle range.

[0057] The digital display control panel 12, as the control center of the equipment, has its output end electrically connected to the input end of the second motor 605 through an electrical cable. The operator can accurately set the operating parameters of the second motor 605 on the digital display control panel 12 according to the specific transmission situation of the composite bag body 10 and the process requirements, including the rotation angle, rotation speed, and rotation direction of the motor, etc. By operating the digital display control panel 12, the deflection angle of the air outlet pipe 601 can be adjusted in real time, enabling the air flow to accurately act on a specific position of the composite bag body 10 to achieve the best guiding effect.

[0058] The other end of the air outlet pipe 601 is connected with an air guiding joint 604 through a spring air duct 603. The spring air duct 603 is made of flexible materials and has a spiral spring structure inside. This design makes it have good flexibility and can adapt to the position change of the air outlet pipe 601 during the deflection process, and also has a certain compressive resistance to ensure the stable transmission of the air flow in the pipe. One end of the spring air duct 603 is tightly connected to the end of the air outlet pipe 601 through a sealed connection method to ensure that there is no air leakage at the connection; the other end is also sealed and connected to the air guiding joint 604 to achieve reliable air flow transmission.

[0059] On the lower side of the air outlet pipe 601, air outlet holes 602 are evenly opened along its axial direction. The inner contour of the air outlet holes 602 is carefully designed as a straight line shape, and its length direction is strictly consistent with the axial direction of the air outlet pipe 601. This design enables the air flow blown out from the air outlet pipe 601 to act on the surface of the composite bag body 10 in a flat and uniform form, increasing the contact area between the air flow and the composite bag body 10 and improving the guiding effect of the air flow on the composite bag body 10.

[0060] See the attached instructions Figure 4 、 Figure 7 、 Figure 8 and Figure 10As shown, the clamping and positioning structure 7 includes two oppositely arranged clamping plates 702. The shape and size of the clamping plates 702 are customized according to the common specifications and shapes of the composite bag body 10, generally being rectangular or a specific shape adapted to the end of the composite bag body, and their size is sufficient to cover the part of the composite bag body 10 that needs to be clamped, ensuring the effective fixation of the bag body during the entire heat-sealing and cutting process.

[0061] On one side of each clamping plate 702, there is a second cylinder 701 dedicated to driving its movement. As a power source, the second cylinder 701 can precisely control the moving distance and speed of the clamping plate 702. The second cylinder 701 is firmly fixed to the housing 1 through a cylinder seat 704. The cylinder seat 704 is made of high-strength metal material and is connected to the housing 1 by reliable means such as bolts or welding, ensuring that during the operation of the equipment, the second cylinder 701 can work stably without displacement due to vibration or external impact.

[0062] The digital display control panel 12, as the control core of the equipment, has its output end electrically connected to the control input end of the second cylinder 701 through electrical cables. The operator can precisely set the working parameters of the second cylinder 701 on the digital display control panel 12 according to the characteristics of the composite bag body 10, such as the thickness, material, etc., such as the extension length of the cylinder piston rod, the retraction speed, and the magnitude of the clamping force. By operating the digital display control panel 12, the opening and closing degree between the two clamping plates 702 can be flexibly controlled to adapt to the clamping requirements of composite bag bodies 10 of different specifications.

[0063] To ensure the smoothness and accuracy of the clamping plate 702 during movement, two second guide rods are symmetrically arranged on both sides of the second cylinder 701 with the second cylinder 701 as the center. These two second guide rods are made of high-strength cylindrical metal rods. One end of each of them is tightly connected to the clamping plate 702 by welding, bolt connection, or other reliable fixing methods, ensuring that when the clamping plate 702 moves, the second guide rod can move synchronously with it. The other end of the second guide rod is precisely slidably connected to a second guide slide hole pre-opened at the corresponding position of the cylinder seat 704. The inner diameter of the second guide slide hole and the outer diameter of the second guide rod are precisely processed and matched to ensure that the guide rod can smoothly slide in the slide hole, and at the same time, it can provide good guiding accuracy, restricting the moving direction of the clamping plate 702 so that it can only move linearly along the axial direction of the second guide rod. This guiding structure effectively avoids phenomena such as shaking, offset, or torsion of the clamping plate 702 during movement, ensuring the accuracy and stability of the clamping action, and thus providing a strong guarantee for the precise positioning and reliable clamping of the composite bag body 10.

[0064] On two clamping plates 702, photoelectric sensors 703 for detecting the position of the composite bag body 10 are respectively installed. The photoelectric sensor 703 can quickly and accurately detect whether the composite bag body 10 reaches the predetermined clamping position. The detection direction of the photoelectric sensor 703 is perpendicular to the transmission direction of the composite bag body 10 to ensure that the edge position of the composite bag body 10 can be detected in time.

[0065] A bag-passing opening 102 for passing the composite bag body 10 into the housing 1 is provided on the top side of the housing 1, and a bag-discharging opening 101 for discharging the composite bag body 10 is provided on the lower side of the housing 1. A conveyor 5 for transmitting and moving the composite bag body 10 is provided at the bag-discharging opening 101, and the output end of the digital display control panel 12 is electrically connected to the input end of the conveyor 5.

[0066] The working principle and technical effect of the present invention:

[0067] Pass the composite bag body 10 into the device through the bag-passing opening 102 on the top side of the housing 1. Operate and start the first motor 201 on the digital display control panel 12. The first motor 201 drives two transmission rollers 202 to rotate synchronously and reversely through a gear transmission mechanism, thereby transmitting the composite bag body 10 downward.

[0068] The digital display control panel 12 starts the second motor 605 and controls the deflection angle of the air outlet pipe 601 so that the air blown out of the air outlet holes 602 can guide the composite bag body 10, and the composite bag body 10 smoothly moves downward through the gap channel formed between the first guide wheel 8 and the second guide wheel 9.

[0069] When the composite bag body 10 is transmitted between the two clamping plates 702 below the first guide wheel 8 and the second guide wheel 9, the photoelectric sensor 703 detects the position of the composite bag body 10. After receiving the signal, the digital display control panel 12 controls the second cylinder 701 to drive the two clamping plates 702 to move relatively, and positionally clamp and fix the end of the composite bag body 10.

[0070] Start the second electric telescopic rod 402 through the digital display control panel 12, adjust the position of the frame 401 in the linear movement driving assembly 4, so that the first guide wheel 8 and the second guide wheel 9 move horizontally and crosswise, and realize continuous S-shaped turning support for the composite bag body 10.

[0071] The digital display control panel 12 controls the first electric telescopic rod 304 to drive the seat plate 301 to move, so that the heat sealer 308 on the bracket 302 abuts and cooperates with the first guide roller 8 and the second guide roller 9 to heat-seal the composite bag body 10. During the heat-sealing process, the digital display control panel 12 controls the first cylinder 303 to drive the cutting knife 307 to slide and move in the knife-piercing hole groove 309 to cut the composite bag body 10, thereby synchronously completing the heat-sealing and shearing operations. Among them, the heat sealer 308 heat-seals the composite bag body 10 on one side of the cutting knife 307, so that when cutting, one end of the finished bag body is closed and the other end is open;

[0072] After the cutting is completed, the air outlet holes 602 of the ventilation guiding assembly 6 continue to blow air to assist the falling of the cut composite bag body. The digital display control panel 12 controls the conveyor 5 to start, and moves the cut composite bag body 10 out of the housing 1 from the bag outlet 101.

[0073] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A paper-plastic composite bag cutting device, characterized in that: It includes a housing (1) and a digital display control panel (12). On both sides inside the housing (1), a set of first guide rollers (8) and a set of second guide rollers (9) are respectively arranged. A number of the first guide rollers (8) and the second guide rollers (9) are evenly distributed in the vertical direction, and the first guide rollers (8) and the second guide rollers (9) are arranged in a vertically crossed manner with each other. The housing (1) is provided with two linear movement drive assemblies (4) for respectively driving the first guide rollers (8) and the second guide rollers (9) to move crosswise in the horizontal direction. When the two linear movement drive assemblies (4) respectively drive and move the first guide rollers (8) and the second guide rollers (9), a gap channel for passing through the composite bag body (10) can be formed between the first guide rollers (8) and the second guide rollers (9), and continuous S-shaped turning support for the composite bag body (10) can be realized. Below the first guide rollers (8) and the second guide rollers (9), a clamping and positioning structure (7) for positioning and clamping the end of the composite bag body (10) is provided. On one side of each linear movement drive assembly (4), a heat sealing and cutting assembly (3) for respectively cooperating with the first guide rollers (8) and the second guide rollers (9) for heat sealing and cutting is provided. Above the first guide rollers (8) and the second guide rollers (9), a feeding roller assembly (2) for feeding the composite bag body (10) is provided. At the feeding roller assembly (2), a ventilation and guiding assembly (6) for guiding the composite bag body (10) to move downward and blowing the cut composite bag body to fall is provided. Through the cooperation among the feeding roller assembly (2), the heat sealing and cutting assembly (3), the linear movement drive assembly (4), the ventilation and guiding assembly (6), the clamping and positioning structure (7), the first guide rollers (8) and the second guide rollers (9), multiple finished composite bag bodies can be simultaneously heat sealed and cut at one time. The ventilation and guiding assembly (6) can blow air to the composite bag body after cutting while guiding the composite bag body to be fed by the feeding roller assembly (2), assisting the cut composite bag body to fall, so that the composite bag body is stacked and then transferred out of the housing by a conveyor.

2. The paper-plastic composite bag cutting device according to claim 1, characterized in that: The linear movement drive assembly (4) includes a frame (401) with a rectangular outer contour. A number of groups of wheel support rods (403) are fixedly arranged on the frame (401) in the vertical direction. Each group of wheel support rods (403) includes two parallelly distributed ones. The first guide rollers (8) and the second guide rollers (9) are respectively rotatably arranged between the corresponding two wheel support rods (403). A second electric telescopic rod (402) is fixedly arranged on the inner side of the housing (1). The push rod head end of the second electric telescopic rod (402) is fixedly connected to the frame (401) through a support ear (408). The output end of the digital display control panel (12) is electrically connected to the input end of the second electric telescopic rod (402).

3. The paper-plastic composite bag cutting device according to claim 2, wherein: The upper and lower sides of the second electric telescopic rod (402) are provided with guide shafts (407) symmetrically distributed around the second electric telescopic rod (402), and the two guide shafts (407) are provided with support wheels (405) on opposite sides thereof. A wheel frame (404) for supporting and rotating the support wheels (405) is fixedly provided on the frame (401), and an annular groove (406) for abutting and limiting cooperation with the guide shafts (407) is provided on the outer side of the support wheel (405) along its circumferential direction.

4. The paper-plastic composite bag cutting device according to claim 3, characterized in that: The heat-sealing cutting assembly (3) comprises a base plate (301), a first electric telescopic rod (304) for driving the base plate (301) to move is fixedly arranged in the housing (1), a bracket (302) is fixedly arranged on the base plate (301), electric heat sealers (308) for corresponding to the first material guide wheel (8) and the second material guide wheel (9) are respectively arranged in the up and down directions on the bracket (302), and the electric heat sealer (308) is provided with an arc-shaped groove for abutting and cooperating with the first material guide wheel (8) and the second material guide wheel (9), and the output end of the digital display control panel (12) is electrically connected to the input end of the first electric telescopic rod (304) and the electric heat sealer (308).

5. The paper-plastic composite bag cutting device according to claim 4, wherein: Each of the electric heat sealers (308) is formed with a knife hole (309) for slidingly passing the cutting knife (307); a first cylinder (303) for driving the cutting knife (307) to slide and move in the knife hole (309) is fixedly arranged on the bracket (302); two first guide rods (305) symmetrically distributed with the first electric telescopic rod (304) as the center are arranged on both sides; one end of the two first guide rods (305) is fixedly connected to the base plate (301) and the other end of the two guide rods (305) is slidably connected to a first guide sliding hole opened at a corresponding position on the side wall of the housing (1); and the output end of the digital display control panel (12) is electrically connected to the input end of the first cylinder (303).

6. The paper-plastic composite bag cutting device according to claim 5, wherein: The feed roller assembly (2) comprises two transmission rollers (202) arranged in parallel, the ends of the two transmission rollers (202) being connected to each other via a gear transmission mechanism, the gear transmission mechanism being composed of two gears (204) meshingly connected to each other, a gear box (203) being arranged outside the two gears (204), the gear box (203) being fixedly arranged on the inner wall of the housing (1), a first motor (201) for driving the gear to rotate being arranged at the shaft end of one of the gears (204), and an output end of the digital display control panel (12) being electrically connected to an input end of the first motor (201).

7. The paper-plastic composite bag cutting device according to claim 6, wherein: The ventilation guiding assembly (6) includes two air outlet pipes (601) arranged below the transmission roller (202). The outer contour of the air outlet pipe (601) is in a cylindrical shape. One end of each air outlet pipe (601) is provided with a second motor (605) for driving its deflection. The other end of the air outlet pipe (601) is connected to an air guiding joint (604) through a spring air pipe (603). The air guiding joint (604) is fixedly arranged on the housing (1). An air outlet hole (602) is opened on the lower side of the air outlet pipe (601). The inner contour of the air outlet hole (602) is in a straight shape and the length direction is consistent with the axial direction of the air outlet pipe (601). The output end of the digital display control panel (12) is electrically connected to the input end of the second motor (605).

8. The paper-plastic composite bag cutting device according to claim 7, wherein: The clamping and positioning structure (7) includes two relatively arranged clamping plates (702). One side of each clamping plate (702) is provided with a second air cylinder (701) for driving its movement. The second air cylinder (701) is fixedly arranged on the housing (1) through a cylinder seat (704). Two second guiding rods symmetrically distributed with the second air cylinder (701) as the center are arranged on both sides of the second air cylinder (701). One end of the two second guiding rods is fixedly connected to the clamping plate (702), and the other end of the two second guiding rods is slidably connected to a second guiding slide hole opened at the corresponding position of the cylinder seat (704). An optoelectronic sensor (703) for detecting the position of the composite bag body (10) is arranged on the two clamping plates (702). The output end of the digital display control panel (12) is electrically connected to the input end of the second air cylinder (701), and the output end of the optoelectronic sensor (703) is electrically connected to the input end of the digital display control panel (12).

9. The paper-plastic composite bag cutting device according to claim 8, characterized in that: A bag threading opening (102) for passing the composite bag body (10) into the housing (1) is opened on the top side of the housing (1). A bag outlet (101) for moving the composite bag body (10) out is opened on the lower side of the housing (1). A conveyor (5) for transmitting and moving the composite bag body (10) is arranged at the bag outlet (101). The output end of the digital display control panel (12) is electrically connected to the input end of the conveyor (5).

10. A method for using a paper-plastic composite bag cutting device, which uses the paper-plastic composite bag cutting device according to claim 9, characterized in that: S1: Pass the composite bag body (10) into the device through the bag threading opening (102) on the top side of the housing (1). Operate and start the first motor (201) on the digital display control panel (12). The first motor (201) drives the two transmission rollers (202) to rotate synchronously and reversely through a gear transmission mechanism, so as to transmit the composite bag body (10) downward; S2: The digital display control panel (12) starts the second motor (605) and controls the deflection angle of the air outlet pipe (601) so that the air blown out from the air outlet hole (602) can guide the composite bag body (10), and the composite bag body (10) smoothly moves down through the gap channel formed between the first guiding wheel (8) and the second guiding wheel (9); S3: When the composite bag body (10) is transmitted between the two clamping plates (702) below the first guiding roller (8) and the second guiding roller (9), the photoelectric sensor (703) detects the position of the composite bag body (10). After receiving the signal, the digital display control panel (12) controls the second cylinder (701) to drive the two clamping plates (702) to move relatively, so as to position and clamp the end of the composite bag body (10). S4: Start the second electric telescopic rod (402) through the digital display control panel (12), adjust the position of the frame (401) in the linear movement driving assembly (4), so that the first guiding roller (8) and the second guiding roller (9) move horizontally and crosswise, and realize continuous S-shaped turning support for the composite bag body (10). S5: The digital display control panel (12) controls the first electric telescopic rod (304) to drive the seat plate (301) to move, so that the heat sealer (308) on the bracket (302) abuts and cooperates with the first guiding roller (8) and the second guiding roller (9) to heat-seal the composite bag body (10). During the heat-sealing process, the digital display control panel (12) controls the first cylinder (303) to drive the cutting knife (307) to slide in the knife-piercing hole groove (309) to cut the composite bag body (10). Thus, the heat-sealing and shearing operations are completed synchronously. The heat sealer (308) heat-seals the composite bag body (10) on one side of the cutting knife (307). Thus, when cutting, one end of the finished bag body is closed and the other end is open. S6: After the cutting is completed, the air outlet holes (602) of the ventilation guiding assembly (6) continue to blow air to assist the cut composite bag body to fall. The digital display control panel (12) controls the conveyor (5) to start, and moves the cut composite bag body (10) out of the housing (1) from the bag outlet (101).

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