Paper-plastic composite bag cutting equipment and use method

Abstract

The invention relates to the technical field of paper-plastic composite bag processing, in particular to paper-plastic composite bag cutting equipment and a using method.The paper-plastic composite bag cutting equipment comprises a shell and a digital display control panel, and a set of first material guide wheels and a set of second material guide wheels are arranged on the two sides in the shell correspondingly; a plurality of first material guide wheels and a plurality of second material guide wheels are uniformly distributed in the vertical direction; the first material guide wheels and the second material guide wheels are distributed in a vertical cross manner; the shell is provided with two linear movement driving assemblies used for driving the first material guiding wheel and the second material guiding wheel to move in a crossed mode in the horizontal direction, and the feeding roller assembly, the heat sealing and cutting assembly, the linear movement driving assemblies, the ventilation guiding assembly and the clamping and material fixing structure cooperate and cooperate with one another, so that the feeding roller assembly, the heat sealing and cutting assembly, the linear movement driving assemblies, the ventilation guiding assembly and the clamping and material fixing structure cooperate with one another; a plurality of finished product composite bag bodies can be formed through one-time simultaneous heat sealing and cutting, and the heat sealing and cutting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of paper-plastic composite bag processing, and in particular to a paper-plastic composite bag cutting device and a use method. Background Art

[0002] Paper-plastic composite bags are made of plastic and kraft paper. Usually, the plastic layer is made of flat woven cloth with polypropylene (PP) or polyethylene (PE) as the base material, and the kraft paper is made of refined composite special kraft paper. It has the characteristics of high strength, good waterproofness and beautiful appearance. It is one of the most popular packaging materials and is widely used in plastic raw materials, cement, feed, chemical industry, fertilizer and other industries.

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

[0004] A paper-plastic composite bag heat sealing processing equipment with publication number CN111231420B includes a mounting frame, a gluing device, a heat sealing device and a cutting mechanism. A conveying path is installed in the middle of the mounting frame, a gluing device is installed at the left end of the mounting frame, a heat sealing device is installed in the middle of the mounting frame, and a 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 method of use in order to solve the above-mentioned problem.

[0006] To achieve the above object, the present invention provides the following technical solutions: The present invention provides a paper-plastic composite bag cutting device, comprising a housing and a digital display control panel, wherein a group of first guide wheels and a group of second guide wheels are respectively arranged on both sides of the housing, and the first guide wheels and the second guide wheels are each provided with a plurality of wheels evenly distributed in the up-down direction, and the first guide wheels and the second guide wheels are arranged in an up-down cross-distribution manner; The housing is provided with two linear motion drive assemblies for respectively driving the first guide wheel and the second guide wheel to cross-move in the horizontal direction. When the two linear motion drive assemblies respectively drive the first guide wheel and the second guide wheel to move, a gap channel for passing through the composite bag body can be formed between the first guide wheel and the second guide wheel, and continuous S-shaped steering support for the composite bag body can be achieved; A clamping and fixing structure for positioning, clamping and fixing the end of the composite bag body is provided below the first guide wheel and the second guide wheel; A heat sealing and cutting assembly is provided on one side of each linear motion driving assembly for respectively cooperating with the first material guide wheel and the second material guide wheel for heat sealing and cutting; A feeding roller assembly for feeding the composite bag body is arranged above the first guide wheel and the second guide wheel, and a ventilation guide assembly for guiding the composite bag body to move downward and blow it after cutting is arranged at the feed roller assembly.

[0007] Furthermore, the linear motion drive assembly includes a frame with a rectangular outline, and a plurality of groups of wheel support rods evenly distributed are fixedly arranged on the frame in the up and down directions, each group of wheel support rods includes two parallel distributed, the first guide wheel and the second guide wheel are respectively rotatably arranged between the corresponding two wheel support rods, and a second electric telescopic rod is fixedly arranged on the inner side of the outer shell, and the push rod head end of the second electric telescopic rod is fixedly connected to the frame through a support ear, and the output end of the digital display control panel is electrically connected to the input end of the second electric telescopic rod.

[0008] Furthermore, guide shafts symmetrically distributed with the second electric telescopic rod as the center are provided on the upper and lower sides, and support wheels are provided on the opposite sides of the two guide shafts. A wheel frame for supporting and rotating the support wheels is fixedly provided on the frame, and an annular groove for abutting and limiting cooperation with the guide shaft is provided on the outer side of the support wheel along its circumferential direction.

[0009] Furthermore, the heat sealing and cutting assembly includes a base plate, a first electric telescopic rod for driving the seat plate to move is fixedly arranged in the shell, a bracket is fixedly arranged on the base plate, and electric heat sealers for corresponding to the first guide wheel and the second guide wheel are respectively arranged in the up and down directions on the bracket, and an arc-shaped groove for abutting and cooperating with the first guide wheel and the second guide wheel is provided on the electric heat sealer, and the output end of the digital display control panel is electrically connected to the input end of the first electric telescopic rod and the electric heat sealer respectively.

[0010] Furthermore, each of the electric heat sealers is formed with a knife hole groove for sliding through the cutting knife, and a first cylinder for driving the cutting knife to slide and move in the knife hole groove is fixedly arranged on the bracket, and two first guide rods symmetrically distributed with the first electric telescopic rod as the center are arranged on both sides, one end of the two first guide rods are fixedly connected to the seat plate, and the other ends of the two guide rods are slidably connected to the first guide sliding holes opened at corresponding positions on the side wall of the outer shell, and the output end of the digital display control panel is electrically connected to the input end of the first cylinder.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] A method for using a paper-plastic composite bag cutting device: 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; S2: The digital display control panel starts the second motor to control the deflection angle of the air outlet pipe so that the wind blown out of the air outlet can guide the composite bag body, so that the composite bag body can smoothly move down from the gap channel formed between the first guide wheel and the second guide wheel; S3: When the composite bag is transferred to between the two clamping plates below the first guide wheel and the second guide wheel, the photoelectric sensor detects the position of the composite bag. After receiving the signal, the digital display control panel controls the second cylinder to drive the two clamping plates to move relative to each other, so as to position, clamp and fix the end of the composite bag. S4: Start the second electric telescopic rod through the digital display control panel, adjust the position of the frame in the linear motion drive assembly, make the first guide wheel and the second guide wheel move horizontally and cross each other, and realize continuous S-shaped steering support for the composite bag body; S5: The digital display control panel controls the first electric telescopic rod to drive the seat plate to move, so that the electric heat sealer on the bracket abuts and cooperates with the first guide wheel and the second guide wheel to heat seal the composite bag. During the heat sealing process, the digital display control panel controls the first cylinder to drive the cutting knife to slide in the knife hole groove to cut the composite bag, thereby completing the heat sealing and shearing operations simultaneously, wherein the electric heat sealer heat seals the composite bag on one side of the cutting knife, thereby achieving one end of the finished bag being closed and the other end being open during shearing; S6: After the cutting is completed, the air outlet of the ventilation guide assembly continues to blow air to assist the cut composite bag body to fall, and the digital display control panel controls the conveyor to start and move the cut composite bag body out of the shell from the bag outlet.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. Through the coordination and cooperation among the feed roller assembly, heat sealing and cutting assembly, linear motion drive assembly, ventilation guide assembly, clamping and setting structure, first guide wheel and second guide wheel, multiple finished composite bags can be formed by heat sealing and cutting at one time, thus improving the efficiency of heat sealing and cutting; 2. The ventilation guide assembly can blow air to the composite bag body after cutting while the composite bag body is being fed and guided by the feed roller assembly, so as to assist the composite bag body after cutting to fall, so that the composite bag body can be transported out of the shell by the conveyor after stacking; 3. The heat-sealing cutting component can cooperate with the first guide wheel and the second guide wheel to heat-seal the composite bag body, and can also shear the composite bag body on one side of the heat-sealing part, thereby realizing the simultaneous heat-sealing and shearing, and further improving the efficiency; 4. The clamping and fixing structure located below the first guide wheel and the second guide wheel can position, clamp and fix the ends of the composite bag. The linear motion drive assembly needs to cooperate with the clamping and fixing structure in the process of driving the guide wheel to move, to ensure that the ends of the composite bag can be accurately positioned and fixed when the composite bag is transmitted and heat-sealed and cut, to prevent the composite bag from moving or offsetting during processing, thereby ensuring the accuracy and quality of heat sealing and cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 The present invention Figure 1 Schematic diagram of the left view structure; Figure 3 The present invention Figure 1 Schematic diagram of the three-dimensional structure; Figure 4 The present invention Figure 2 AA cross-sectional structural diagram; Figure 5 The present invention Figure 4 A schematic diagram of the local enlarged structure at B; Figure 6 The present invention Figure 4 A schematic diagram of the local enlarged structure at C; Figure 7 The present invention Figure 4 A schematic diagram of the local enlarged structure at D; Figure 8 It is a schematic diagram of the three-dimensional internal structure of the present invention in the first direction; Fig. 9 The present invention Figure 8 A schematic diagram of the local enlarged structure at E; Fig.10 It is a schematic diagram of the three-dimensional internal structure of the present invention in the second direction; Fig.11 The present invention Fig.10 A schematic diagram of the local enlarged structure at F; Fig.12 It is a schematic diagram of the three-dimensional structure of the ventilation guide assembly of the present invention.

[0019] The accompanying drawings are described as follows: 1. Shell; 101. Bag outlet; 102. Bag insertion port; 103. Ventilation and heat dissipation slot; 2. Feed roller assembly; 201. First motor; 202. Transmission roller; 203. Gear box; 204. Gear; 205. Roller; 3. Heat sealing and cutting assembly; 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 insertion slot; 4. Linear motion drive assembly; 401. Frame; 402. First Two electric telescopic rods; 403, wheel support rod; 404, wheel frame; 405, support wheel; 406, annular groove; 407, guide shaft; 408, support ear; 5, conveyor; 6, ventilation guide assembly; 601, air outlet pipe; 602, air outlet hole; 603, spring air guide pipe; 604, air guide joint; 605, second motor; 7, clamping and fixing structure; 701, second cylinder; 702, clamping plate; 703, photoelectric sensor; 704, cylinder seat; 8, first guide wheel; 9, second guide wheel; 10, composite bag body; 11, limit sleeve; 12, digital display control panel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present invention clearer, the technical scheme of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] See also Figure 1-Figure 12 As shown, the present invention provides a paper-plastic composite bag cutting device, with a housing 1 as the main supporting structure, and a digital display control panel 12 installed on the outer surface of the housing 1, so that the operator can easily set parameters and control the device. The digital display control panel 12 is connected to the electrical components inside the device through wires to achieve precise control of the operation of the device.

[0022] A group of guide wheels is installed on each of the two opposite side walls inside the outer shell 1. One group is the first guide wheel 8, and the other group is the second guide wheel 9. Each group of guide wheels includes a number of individuals. The individual guide wheels in the first guide wheel 8 group are arranged equidistantly in the vertical direction, and the same is true for the second guide wheel 9 group. In addition, the first guide wheel 8 and the second guide wheel 9 are staggered with each other in the vertical direction; the outer shell 1 is equipped with two linear motion drive components 4, which are responsible for driving the first guide wheel 8 and the second guide wheel 9 to cross-move in the horizontal direction respectively. When the two linear motion drive components 4 drive the first guide wheel 8 and the second guide wheel 9 to move respectively, a gap channel for passing through the composite bag body 10 can be formed between the first guide wheel 8 and the second guide wheel 9, and continuous S-shaped steering support for the composite bag body 10 can be achieved; located in the first A clamping and fixing structure 7 for positioning, clamping and fixing the end of the composite bag body 10 is arranged below the guide wheel 8 and the second guide wheel 9; a heat sealing and cutting component 3 for cooperating with the first guide wheel 8 and the second guide wheel 9 for heat sealing and cutting respectively is arranged on one side of each linear motion drive component 4; a feed roller component 2 for transmitting and feeding the composite bag body 10 is arranged above the first guide wheel 8 and the second guide wheel 9, and a ventilation guide component 6 for guiding the composite bag body 10 to move downward and blow it after cutting is arranged at the feed roller component 2.

[0023] See the instruction manual Figure 8 , Fig. 9 , Fig.10 and Fig.11 As shown, the linear motion drive assembly 4 includes a frame 401 with a rectangular outline, and a plurality of groups of wheel support rods 403 evenly distributed are fixedly arranged on the frame 401 in the up and down directions, and each group of wheel support rods 403 includes two parallel distributed, and the first guide wheel 8 and the second guide wheel 9 are respectively rotatably arranged between the corresponding two wheel support rods 403. During the transmission process of the composite bag body 10, the flexible rotation of the first guide wheel 8 and the second guide wheel 9 can reduce the friction resistance between the composite bag body 10 and the guide wheel, and avoid damage to the composite bag body 10 due to excessive friction, and also help to 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, and the push rod head end of the second electric telescopic rod 402 is fixedly connected to the frame 401 through the support ear 408, and the output end of the digital display control panel 12 is electrically connected to the input end of the second electric telescopic rod 402. The upper and lower sides of the second electric telescopic rod 402 are provided with guide shafts 407 symmetrically distributed with it as the center, and the opposite sides of the two guide shafts 407 are provided with support wheels 405. A wheel frame 404 for supporting and rotating the support wheels 405 is fixedly provided on the frame 401, and the outer side of the support wheel 405 is provided with an annular groove 406 for abutting and limiting cooperation with the guide shaft 407 along its circumferential direction.

[0024] The linear motion drive assembly 4 closely cooperates with the first guide wheel 8 and the second guide wheel 9, and by driving the guide wheels to move horizontally and crosswise, a gap channel for passing the composite bag body 10 can be formed between the first guide wheel 8 and the second guide wheel 9. When the composite bag body 10 passes through, the composite bag body 10 can be supported in a continuous S-shaped turning manner, so that the transmission path and posture of the composite bag body 10 can be adjusted as needed, so that it can be stably and accurately transmitted in the equipment, and ready for subsequent heat sealing and cutting of the composite bag body 10 to size and other processes.

[0025] The clamping and fixing structure 7 located below the first guide wheel 8 and the second guide wheel 9 is used to position, clamp and fix the end of the composite bag body 10. The linear motion drive assembly 4 needs to cooperate with the clamping and fixing structure 7 in the process of driving the guide wheel to move, so as to ensure that the end of the composite bag body 10 can be accurately positioned and fixed when it is transported and heat-sealed and cut, so as to prevent the composite bag body 10 from moving or deviating during the processing, thereby ensuring the accuracy and quality of heat sealing and cutting.

[0026] See the instruction manual 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 seat plate 301 to move is fixedly arranged in the shell 1, a bracket 302 is fixedly arranged on the seat plate 301, and electric heat sealers 308 for corresponding to the first guide wheel 8 and the second guide wheel 9 are respectively arranged in the up and down directions on the bracket 302, each electric heat sealer 308 is equipped with an independent heating element and a temperature control system, using the existing technology, which is well known to those skilled in the art, and an arc-shaped groove for abutting and matching with the first guide wheel 8 and the second guide wheel 9 is opened on the electric heat sealer 308, and the curvature and size of the arc-shaped groove are accurately calculated and accurately matched with the outer contour of the first guide wheel 8 and the second guide wheel 9, so as to ensure that during the heat sealing operation, the electric heat sealer 308 can be closely and evenly abutted with the guide wheel, and the output end of the digital display control panel 12 is electrically connected to the first electric telescopic rod 304 and the input end of the electric heat sealer 308 respectively. When the composite bag 10 is conveyed between the guide 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 guide wheels, and at the same time starts the heating function of the electric heat sealer 308 to heat-seal the composite bag 10.

[0027] Each electric heat sealer 308 is formed with a knife hole slot 309 for sliding through the cutting knife 307, and a first cylinder 303 for driving the cutting knife 307 to slide and move in the knife hole slot 309 is fixedly arranged on the bracket 302. Two first guide rods 305 symmetrically distributed around the first electric telescopic rod 304 are arranged on both sides thereof, and one end of the two first guide rods 305 is fixedly connected to the seat plate 301, and the other end of the two guide rods 305 is slidably connected to the first guide sliding hole opened at the corresponding position on the side wall of the shell 1, and the output end of the digital display control panel 12 is electrically connected to the input end of the first cylinder 303.

[0028] See the instruction manual Figure 4 , Figure 5 and Figure 8As shown, the feed roller assembly 2 is composed of two transmission rollers 202, which are distributed in parallel inside the shell 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 is composed of two gears 204 of the same size and tightly meshed with each other. Each gear 204 is fixed to the corresponding transmission roller 202 shaft end by a flat key or other suitable key connection method, ensuring that the gear 204 and the transmission roller 202 can achieve synchronous rotation 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 with it, and then drive the transmission roller 202 connected thereto to operate synchronously, ensuring that the two transmission rollers 202 transmit the composite bag body 10 at the same speed and stable linear speed, avoiding the composite bag body 10 from stretching, twisting and other undesirable phenomena due to inconsistent speed. A gear box 203 is set on the outside of the two gears 204. The gear box 203 is made of high-strength metal material and has good sealing performance. It can effectively prevent dust, impurities, etc. from entering the gear transmission mechanism, avoid wear on the tooth surface of the gear 204, and extend the service life of the gear transmission mechanism. The gear box 203 is filled with lubricating oil. The lubricating oil can form a uniform oil film between the tooth surfaces during the rotation of the gear 204, which plays a role in lubrication and friction reduction, reduces energy loss during the transmission process, improves transmission efficiency, and can also take away the heat generated during the operation of the gear 204, ensuring that the gear transmission mechanism works within a suitable temperature range. The gear box 203 is firmly mounted on the inner wall of the housing 1 by bolts or other reliable fixing methods to ensure that it will not be displaced or shaken during the operation of the equipment. A first motor 201 for driving its rotation is connected to the shaft end of one of the gears 204. The first motor 201 is the power source of the feed roller assembly 2, and can be an AC asynchronous motor or a DC motor, which can provide sufficient torque and 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 connection device, ensuring 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 controls the operation of the first motor 201 to achieve precise control of the transmission speed and transmission direction of the feed roller assembly 2.

[0029] See the instruction manual Figure 5 , Fig.10 , Fig.11 and Fig.12As shown, the ventilation guide assembly 6 is mainly composed of two air outlet pipes 601, which are respectively arranged directly below the two conveying rollers 202. The purpose is to maximize the use of airflow 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 axis of the conveying roller 202 to ensure that the composite bag body 10 can be evenly affected by the airflow during the conveying process. The air outlet pipe 601 is made of durable metal material, and its outer contour is designed to be cylindrical. A second motor 605 specifically used to drive its deflection is installed at one end of each air outlet pipe 601. The second motor 605 is a servo motor or a stepper motor to achieve flexible deflection of the air outlet pipe 601 within a certain angle range. The digital display control panel 12 serves as the control center of the equipment, and its output end is 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, including the rotation angle, rotation speed and rotation direction of the motor, on the digital display control panel 12 according to the specific transmission conditions and process requirements of the composite bag body 10. By operating the digital display control panel 12, the deflection angle of the air outlet 601 can be adjusted in real time, so that the airflow can accurately act on a specific position of the composite bag body 10 to achieve the best guiding effect. The other end of the air outlet pipe 601 is connected to the air guide joint 604 through the spring air guide pipe 603. The spring air guide pipe 603 is made of flexible material 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 has a certain pressure resistance to ensure the stable transmission of airflow in the pipe. One end of the spring air guide pipe 603 is tightly connected to the end of the air outlet pipe 601 through a sealed connection to ensure that there will be no air leakage at the connection; the other end is also sealed and connected to the air guide joint 604 to achieve reliable airflow transmission. At the lower side of the air outlet pipe 601, air outlet holes 602 are evenly arranged along the axial direction thereof. The inner contour of the air outlet hole 602 is carefully designed to be in 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 airflow blown out from the air outlet pipe 601 to act on the surface of the composite bag body 10 in a flat and even manner, thereby increasing the contact area between the airflow and the composite bag body 10 and improving the guiding effect of the airflow on the composite bag body 10. See the instruction manual Figure 4 , Figure 7 , Figure 8 and Fig.10As shown, the clamping and fixing structure 7 includes two clamping plates 702 arranged opposite to each other. The shape and size of the clamping plates 702 are customized according to the common specifications and shapes of the composite bag body 10, and are generally rectangular or in a specific shape adapted to the end of the composite bag body, and are large enough to cover the part of the composite bag body 10 that needs to be clamped, so as to ensure the effective fixation of the bag body during the entire heat sealing and cutting process.

[0030] Each clamping plate 702 is equipped with a second cylinder 701 on one side specifically used to drive the clamping plate 702 to move. The second cylinder 701, as a power source, can accurately 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 through bolts or welding or other reliable methods to ensure that the second cylinder 701 can work stably during the operation of the equipment and will not be displaced due to vibration or external impact.

[0031] The digital display control panel 12 is the control core of the equipment, and its output end is electrically connected to the control input end of the second cylinder 701 through an electrical cable. The operator can accurately set the working parameters of the second cylinder 701, such as the extension length, retraction speed and clamping force of the cylinder piston rod, on the digital display control panel 12 according to the thickness, material and other characteristics of the composite bag body 10. By operating the digital display control panel 12, the opening and closing degree between the two clamping plates 702 can be flexibly controlled to meet the clamping requirements of composite bags 10 of different specifications.

[0032] In order to ensure the stability and accuracy of the clamping plate 702 during the movement, two second guide rods are symmetrically distributed on both sides of the second cylinder 701 with it as the center. The two second guide rods are made of high-strength cylindrical metal rods, one end of which is tightly connected to the clamping plate 702 by welding, bolt connection or other reliable fixing methods, ensuring that the second guide rod can move synchronously with the clamping plate 702 when the clamping plate 702 moves. The other end of the second guide rod is accurately slidably connected to the 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 slide smoothly in the slide hole, while providing good guiding accuracy, limiting 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 the shaking, offset or twisting of the clamping plate 702 during the movement, ensures the accuracy and stability of the clamping action, and thus provides a strong guarantee for the precise positioning and reliable clamping of the composite bag body 10.

[0033] Photoelectric sensors 703 for detecting the position of the composite bag body 10 are respectively installed on the two clamping plates 702. The photoelectric sensors 703 can quickly and accurately detect whether the composite bag body 10 has reached the predetermined clamping position. The detection direction of the photoelectric sensors 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.

[0034] The top side of the shell 1 is provided with a bag insertion opening 102 for passing the composite bag body 10 into the shell 1 , the lower side of the shell 1 is provided with a bag outlet 101 for moving the composite bag body 10 out, a conveyor 5 for transporting and moving the composite bag body 10 is provided at the bag outlet 101, and the output end of the digital display control panel 12 is electrically connected to the input end of the conveyor 5.

[0035] Working principle and technical effect of the present invention: Insert the composite bag body 10 into the device from the bag insertion opening 102 on the top side of the shell 1, 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 in opposite directions through the gear transmission mechanism, thereby transmitting the composite bag body 10 downward; The digital display control panel 12 starts the second motor 605 to control the deflection angle of the air outlet pipe 601, so that the wind blown out of the air outlet hole 602 can guide the composite bag body 10, so that the composite bag body 10 can smoothly move down from the gap channel formed between the first guide wheel 8 and the second guide wheel 9; When the composite bag body 10 is transferred to 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 relative to each other, so as to position, clamp and fix the end of the composite bag body 10. Start the second electric telescopic rod 402 through the digital display control panel 12, adjust the position of the frame 401 in the linear motion drive assembly 4, make the first guide wheel 8 and the second guide wheel 9 move horizontally and crosswise, and realize continuous S-shaped steering support for the composite bag body 10; The digital display control panel 12 controls the first electric telescopic rod 304 to drive the seat plate 301 to move, so that the electric heat sealer 308 on the bracket 302 abuts and cooperates with the first guide wheel 8 and the second guide wheel 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 hole groove 309 to cut the composite bag body 10, thereby completing the heat sealing and shearing operations simultaneously, wherein the electric heat sealer 308 heat seals the composite bag body 10 on one side of the cutting knife 307, thereby achieving one end of the finished bag body closed and the other end open during shearing; After cutting is completed, the air outlet 602 of the ventilation guide assembly 6 continues to blow air to assist the cut composite bag to fall, and the digital display control panel 12 controls the conveyor 5 to start and move the cut composite bag 10 out of the housing 1 from the bag outlet 101 .

[0036] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A paper-plastic composite bag cutting device, characterized in that: The invention comprises a housing (1) and a digital display control panel (12), wherein a group of first guide wheels (8) and a group of second guide wheels (9) are respectively arranged on both sides of the housing (1), wherein the first guide wheels (8) and the second guide wheels (9) are each provided with a plurality of guide wheels evenly distributed in the vertical direction, and the first guide wheels (8) and the second guide wheels (9) are arranged in an intersecting manner with each other in the vertical direction; The housing (1) is provided with two linear motion drive assemblies (4) for respectively driving the first material guide wheel (8) and the second material guide wheel (9) to move crosswise in a horizontal direction. When the two linear motion drive assemblies (4) respectively drive the first material guide wheel (8) and the second material guide wheel (9) to move, a gap channel for passing the composite bag body (10) can be formed between the first material guide wheel (8) and the second material guide wheel (9), and continuous S-shaped steering support can be achieved for the composite bag body (10); A clamping and fixing structure (7) for positioning, clamping and fixing the end of the composite bag body (10) is provided below the first material guide wheel (8) and the second material guide wheel (9); Each linear motion drive assembly (4) is provided with a heat sealing and cutting assembly (3) for respectively cooperating with the first material guide wheel (8) and the second material guide wheel (9) for heat sealing and cutting; A feed roller assembly (2) for conveying and feeding the composite bag body (10) is arranged above the first guide wheel (8) and the second guide wheel (9), and a ventilation guide assembly (6) for guiding the composite bag body (10) to move downward and blow it after it falls after cutting is arranged at the feed roller assembly (2).

2. According to claim 1, a paper-plastic composite bag cutting device is characterized in that: The linear motion drive assembly (4) comprises a frame (401) having a rectangular outer contour, a plurality of groups of wheel support rods (403) evenly distributed are fixedly arranged on the frame (401) in the up-down direction, each group of wheel support rods (403) comprises two wheel support rods distributed in parallel, a first material guide wheel (8) and a second material guide wheel (9) are rotatably arranged between the two corresponding wheel support rods (403), a second electric telescopic rod (402) is fixedly arranged on the inner side of the housing (1), a push rod head end of the second electric telescopic rod (402) is fixedly connected to the frame (401) via a support ear (408), and an output end of the digital display control panel (12) is electrically connected to an input end of the second electric telescopic rod (402).

3. The paper-plastic composite bag cutting device according to claim 2, characterized in that: 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 1, 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, characterized in that: 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 1, characterized in that: 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 1, characterized in that: The ventilation guide assembly (6) comprises two air outlet pipes (601) arranged below the transmission roller (202); the outer contour of the air outlet pipes (601) is cylindrical; one end of each of the air outlet pipes (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 guide joint (604) via a spring air guide pipe (603); the air guide joint (604) is fixedly arranged on the housing (1); an air outlet hole (602) is provided on the lower side of the air outlet pipe (601); the inner contour of the air outlet hole (602) is in the shape of a straight line 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 1, characterized in that: The clamping and metering structure (7) comprises two clamping plates (702) arranged opposite to each other, and a second cylinder (701) for driving the clamping plate (702) is arranged on one side of each clamping plate (702), and the second cylinder (701) is fixedly arranged on the housing (1) through a cylinder seat (704). Two second guide rods symmetrically distributed around the second cylinder (701) are arranged on both sides of the second cylinder (701), and one end of the two second guide rods is fixedly connected to the clamping plate (702), and the other end of the two second guide rods is slidably connected to a second guide sliding hole opened at a corresponding position of the cylinder seat (704). The two clamping plates (702) are provided with a photoelectric sensor (703) for detecting the position of the composite bag body (10), and the output end of the digital display control panel (12) is electrically connected to the input end of the second cylinder (701), and the output end of the photoelectric 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 1, characterized in that: The top side of the shell (1) is provided with a bag insertion opening (102) for passing the composite bag body (10) into the shell (1), the bottom side of the shell (1) is provided with a bag outlet (101) for removing the composite bag body (10), a conveyor (5) for transporting the composite bag body (10) is provided at the bag outlet (101), and 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, using the paper-plastic composite bag cutting device according to any one of claims 1 to 9, characterized in that: S1: inserting the composite bag body (10) into the device through the bag insertion opening (102) on the top side of the housing (1), and starting the first motor (201) on the digital display control panel (12); the first motor (201) drives the two transmission rollers (202) to rotate synchronously in opposite directions through the gear transmission mechanism, thereby transmitting the composite bag body (10) downward; S2: the digital display control panel (12) starts the second motor (605) to control the deflection angle of the air outlet pipe (601), so that the air blown out of the air outlet hole (602) can guide the composite bag body (10), so that the composite bag body (10) can smoothly move downward from the gap channel formed between the first guide wheel (8) and the second guide wheel (9); S3: When the composite bag body (10) is transferred to 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), and after receiving the signal, the digital display control panel (12) controls the second cylinder (701) to drive the two clamping plates (702) to move relative to each other, so as to position, clamp and fix the end of the composite bag body (10); S4: activating the second electric telescopic rod (402) through the digital display control panel (12) to adjust the position of the frame (401) in the linear motion drive assembly (4) so ​​that the first guide wheel (8) and the second guide wheel (9) move horizontally and crosswise, thereby achieving continuous S-shaped steering 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 electric heat sealer (308) on the bracket (302) abuts and cooperates with the first guide wheel (8) and the second guide wheel (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 hole groove (309) to cut the composite bag body (10), thereby completing the heat sealing and shearing operations simultaneously, wherein the electric heat sealer (308) heat seals the composite bag body (10) on one side of the cutting knife (307), thereby achieving one end of the finished bag body being closed and the other end being open during shearing; S6: After the cutting is completed, the air outlet (602) of the ventilation guide assembly (6) continues to blow air to assist the cut composite bag body to fall, and 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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