Bag sealing and cutting device of bag making machine for preventing sticking

Abstract

The utility model relates to a kind of bag making machine sealing and cutting device of anti-sticking bag, by setting sealing and cutting mechanism, bagging anti-sticking mechanism, insert bag mechanism and bag collecting mechanism on rack, so that the material pressing bottom plate of bag collecting mechanism is used to stack bag body, insert bag mechanism is set above bagging anti-sticking mechanism, for the bag body end portion after heat sealing is sent into bagging anti-sticking mechanism one by one, ensure that bag body end portion accurately enters the separation area of bagging anti-sticking mechanism, while bag clamping mechanism is set between insert bag mechanism and bagging anti-sticking mechanism, bag clamping arm is driven by bag clamping drive assembly to approach or away from material pressing bottom plate, realize the physical clamping of the bag body stacked on bag collecting mechanism, provide direct lateral limit for short bag body, prevent it from tilting or sliding due to light weight, insufficient support, improve the stability of short bag body bag collecting, to improve the stability and anti-sticking effect of bag body bag collecting in the process of bag making as a whole.

Description

Technical Field

[0001] This utility model relates to the field of bag making machines, and in particular to a sealing and cutting device for a bag making machine that prevents bags from sticking. Background Technology

[0002] Bags are an indispensable item in people's daily lives. People use bags to store and hold things for convenience in carrying or collecting. With the development of the petrochemical industry, people have gradually developed various kinds of plastic bags, which are not only lightweight but also have a certain strength and toughness, thus greatly increasing the convenience of people's use. At the same time, with the development of the express delivery industry, people are using express delivery bags more and more frequently.

[0003] A bag-making machine is a machine used to produce various plastic or other material packaging bags. The sealing and cutting device is a crucial component used to seal and cut continuously rolled bags into individual packaging bags. A utility model patent with publication number "CN119388835A" discloses a high-efficiency sealing and cutting device for a bag-making machine, including a frame. The frame is equipped with a traction bag-feeding mechanism, a sealing and cutting mechanism with a cutter, and a bag-collecting mechanism. Between the sealing and cutting mechanism and the bag-collecting mechanism, there is a mechanism for separating the ends of the bags with heat-sealed lines after sealing and cutting, preventing them from sticking. The bag-collecting mechanism stacks the bags after sealing and cutting onto the bag-collecting mechanism. A scraping mechanism is located on one side of the sealing and cutting mechanism to remove any adhering material from the cutter surface. The sealed bags are temporarily separated by baffles, achieving high-speed bag separation and anti-sticking effects. Furthermore, the scraping mechanism replaces manual scraping, improving safety and scraping speed, thus achieving efficient bag sealing and cutting. However, in actual use, the sealing and cutting device still has the following drawbacks: 1. When processing short-sized bags, the existing equipment is prone to slipping after sealing and cutting and being transported to the bag collection mechanism due to the short overall length of the bags. This requires frequent manual handling and affects the continuity of production. Summary of the Invention

[0004] The technical problem this utility model aims to solve is to address the shortcomings of the existing technology by providing a sealing and cutting device for a bag-making machine that prevents short bags from slipping during the bag-collecting process, thus ensuring continuous and stable production. By cleverly arranging a sealing and cutting mechanism, a bag-separating and anti-sticking mechanism, a bag-inserting mechanism, and a bag-collecting mechanism on the machine frame, effective bag collection and anti-sticking of short bags are achieved. The pressing base plate of the bag-collecting mechanism is used to stack the bags, providing a stable support surface. A bag-inserting mechanism is located above the bag-separating and anti-sticking mechanism, which can sequentially insert the bags after heat sealing. The bags are fed into the bag-separating and anti-sticking mechanism to ensure that the ends of the bags accurately enter the separation area of ​​the bag-separating and anti-sticking mechanism, thus preventing the bags from sticking together. At the same time, a bag clamping mechanism is set between the bag insertion mechanism and the bag-separating and anti-sticking mechanism. The bag clamping drive component drives the bag clamping arm to move closer to or away from the pressing base plate, realizing the physical clamping of the stacked bags on the bag collection mechanism. This effectively prevents the bags from tilting or slipping due to their light weight and insufficient support, thereby significantly improving the stability of short bag collection. Through structural optimization and mechanism innovation, the stability and anti-sticking effect of bag collection during the bag making process are comprehensively improved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sealing and cutting device for a bag-making machine for anti-sticking bags, comprising a frame, wherein a sealing and cutting mechanism, a bag-separating anti-sticking mechanism, and a bag-collecting mechanism are provided on the frame, the bag-separating anti-sticking mechanism is disposed between the sealing and cutting mechanism and the bag-collecting mechanism, the bag-collecting mechanism includes a pressing base plate for stacking bags, and above the bag-separating anti-sticking mechanism is a bag-inserting mechanism that feeds the ends of the heat-sealed bags one by one into the bag-separating anti-sticking mechanism, and on one side of the pressing base plate is a bag-clamping mechanism that presses the bags on the bag-collecting mechanism onto the pressing base plate, the bag-clamping mechanism including a plurality of bag-clamping arms disposed on one side of the pressing base plate and a bag-clamping drive assembly for driving the bag-clamping arms closer to or away from the pressing base plate.

[0006] The above technical solution involves installing a sealing and cutting mechanism, a bag-separating and anti-sticking mechanism, and a bag-collecting mechanism on the frame. The pressing base plate of the bag-collecting mechanism is used to stack the bags. A bag-inserting mechanism is installed above the bag-separating and anti-sticking mechanism to feed the ends of the heat-sealed bags one by one into the bag-separating and anti-sticking mechanism, ensuring that the ends of the bags accurately enter the separating area of ​​the bag-separating and anti-sticking mechanism. Simultaneously, a bag-clamping mechanism is installed between the bag-inserting mechanism and the bag-separating and anti-sticking mechanism. A bag-clamping drive assembly moves the bag-clamping arm closer to or away from the pressing base plate, achieving physical clamping of the stacked bags on the bag-collecting mechanism. The bag-clamping arm moves towards the pressing base plate under the action of the bag-clamping drive assembly, applying lateral pressure to the stacked bags. Pressure is applied to press the bag body onto the pressing base plate, providing direct lateral restraint for the short bags and preventing them from tilting or slipping due to their light weight and insufficient support. This improves the stability of the short bag collection. Addressing the issue of bag heat-sealing lines easily sticking together, the bag insertion mechanism feeds the bag ends one by one into the bag separating and anti-sticking mechanism. This ensures that each bag end accurately enters the separating and anti-sticking space of the mechanism, separating bags that are still partially stuck together after sealing and cutting. Combined with the separating and anti-sticking mechanism's role in separating the bag ends, this reduces the contact opportunity between the heat-sealing lines of adjacent bags, lowering the risk of sticking due to residual heat from the heat-sealing lines. This overall improves the stability and anti-sticking effect of the bag collection during the bag-making process.

[0007] Furthermore, the bag insertion mechanism includes a bag insertion plate disposed above the bag clamping arm and a bag insertion drive assembly that drives the bag insertion plate to move axially. The bag insertion drive assembly includes bag insertion linkage components disposed on both sides of the bag insertion plate, a bag insertion drive shaft rotatably disposed on the frame, a driven bag insertion linkage transmission mechanism disposed at both ends of the bag insertion drive shaft that drives the bag insertion linkage components to move axially, and a bag insertion transmission assembly disposed at the frame that drives the bag insertion drive shaft to rotate back and forth. The bag insertion transmission assembly is used to drive the bag insertion drive shaft to rotate back and forth, and to drive the bag insertion plate to move axially by linkage with the driven bag insertion linkage transmission mechanism.

[0008] In the above technical solution, the bag insertion mechanism is located at the bag clamping mechanism, with the bag insertion plate positioned above the bag clamping arm. The bag insertion drive assembly drives the bag insertion drive shaft to reciprocate on the frame via the bag insertion transmission assembly. The bag insertion drive shaft is rotatably mounted on the frame via bearings and other rotational support structures, ensuring no radial sway or axial movement during rotation. Driven bag insertion linkage transmission mechanisms at both ends of the transmission shaft actuate with the shaft's rotation, converting the reciprocating rotation of the transmission shaft into axial lifting motion of the bag insertion linkage components (the bag insertion linkage components are located on both sides of the bag insertion plate and connected to the driven bag insertion linkage transmission mechanisms), thereby driving the bag insertion plate to rise and fall axially (vertically). The bag insertion transmission assembly, acting as a power transmission medium, converts external power into the reciprocating rotation of the bag insertion drive shaft. The driven insertion linkage mechanism operates synchronously, driving the insertion plate to rise and fall evenly on both sides through the insertion linkage component, preventing the insertion plate from tilting and ensuring a smooth lifting process. When a new bag is stacked before the pressing base plate, the insertion transmission component drives the insertion transmission shaft to rotate in the forward direction, driving the insertion plate to descend through the driven insertion linkage mechanism. The lower end of the insertion plate is inserted into the top or side gap of the bag to be stacked, and the insertion mechanism causes the bag edge to hang down to both sides of the pressing base plate. Then, the insertion transmission component drives the insertion transmission shaft to rotate in the reverse direction, and the insertion plate rises and resets, completely clearing the clamping path of the clamping arm. At this time, the clamping arm approaches the pressing base plate again for lateral clamping. Through the pre-alignment effect of the insertion plate, it is ensured that the clamping plane of the clamping arm can stably contact the side of the bag, and the clamping force is evenly distributed along the side of the bag.

[0009] Furthermore, the inserting transmission assembly includes an inserting drive motor, an inserting drive roller rotatably mounted on the frame, and an active inserting linkage transmission mechanism rod connecting the inserting drive roller and the inserting transmission shaft. The inserting drive motor drives the inserting drive roller to rotate axially, and drives the inserting transmission shaft to rotate back and forth through the active inserting linkage transmission mechanism.

[0010] Using the above technical solution, the bag insertion drive motor serves as the power source. Its output end is linked to the bag insertion drive roller via a synchronous belt or sprocket transmission structure, driving the roller to rotate continuously along its own axis on the frame. The bag insertion drive roller is rotatably mounted on the frame via bearings, ensuring no radial wobble during rotation. The active bag insertion linkage transmission mechanism connects the bag insertion drive roller to the bag insertion drive shaft. An eccentrically mounted linkage component is installed on the bag insertion drive roller. One end of this component is fixed to the roller, and the other end is connected to a driven linkage via a hinge shaft. The other end of the driven linkage is hinged to the bag insertion drive shaft. When the bag insertion drive roller rotates continuously, the eccentric linkage component performs circular motion around the roller's axis, periodically pulling or pushing the bag insertion drive shaft via the driven linkage. The bag insertion drive shaft reciprocates around its own axis, and its swing angle is controlled by the eccentricity and the length of the connecting rod. The bag insertion drive roller is supported on the frame by bearings, and the rotation process is stable without radial offset. The hinged connection of the active bag insertion linkage transmission mechanism allows the angle to be adjusted adaptively during the movement, avoiding jamming or stress concentration caused by rigid transmission. This ensures that the reciprocating rotation of the bag insertion drive shaft is continuous and the angle is controllable, thereby driving the bag insertion plate to rise and fall axially. Driven by the transmission components, the bag insertion plate can be accurately inserted into the top or side gaps of the stacked bags, pushing the short bags that are tilted due to their light weight to fit against the side wall of the pressing base plate, preventing the bags from slipping due to uneven stacking, reducing manual handling operations, and ensuring the continuity of bag production.

[0011] Furthermore, the active inserting link transmission mechanism includes an active inserting arm mounted on the inserting drive shaft, an eccentric inserting wheel eccentrically mounted outside the inserting drive roller, an inserting outer ring portion covering the inserting eccentric wheel, and an inserting connecting rod. One end of the inserting connecting rod is hinged to the active inserting arm, and the other end is connected to the inserting outer ring portion. The driven inserting link transmission mechanism includes an axial inserting drive arm connected to the inserting drive shaft and an inserting linkage component. One end of the driven inserting arm is connected to the inserting drive shaft, and the other end is hinged to the axial inserting drive arm. One end of the axial inserting drive arm is hinged to the driven inserting arm, and the other end is hinged to the inserting linkage component. The inserting drive motor drives the inserting pneumatic drive roller to rotate, causing the active inserting arm to swing back and forth around the inserting drive shaft, thereby driving the inserting plate to rise and fall axially.

[0012] In the above technical solution, in the active pocket insertion linkage transmission mechanism, the pocket insertion eccentric wheel is eccentrically mounted outside the pocket insertion drive roller, and the outer ring of the pocket insertion covers the outside of the pocket insertion eccentric wheel to form a relatively rotatable mating structure. Thus, when the eccentric wheel rotates with the pocket insertion drive roller, the length of the outer ring of the pocket insertion changes accordingly. One end of the pocket insertion connecting rod is connected to the active pocket insertion swing arm mounted on the pocket insertion drive shaft via a hinge shaft, and the other end is fixedly connected to the outer ring of the pocket insertion. When the pocket insertion drive motor drives the pocket insertion drive roller to rotate, the pocket insertion drive roller drives the eccentrically mounted pocket insertion eccentric wheel to rotate synchronously around the axis of the drive roller. During the rotation of the pocket insertion eccentric wheel, its eccentric structure causes… The outer ring of the externally covered insert pocket generates an eccentric trajectory movement, which in turn applies a periodic pulling or pushing force to the insert pocket active swing arm through the insert pocket connecting rod. This causes the active swing arm to reciprocate around the insert pocket drive shaft as a fixed axis, driving the insert pocket drive shaft to reciprocate synchronously around its own axis. In the driven insert pocket linkage transmission mechanism, one end of the driven insert pocket swing arm is fixedly connected to the insert pocket drive shaft and swings synchronously with the reciprocating rotation of the drive shaft. The other end is connected to one end of the insert pocket axial drive arm through a hinge shaft. The other end of the insert pocket axial drive arm is connected to the insert pocket linkage component through a hinge shaft. The insert pocket linkage component is fixed to the insert pocket plate. When the insert pocket drive shaft reciprocates... The driven swing arm swings synchronously with the bag insertion, converting the swing motion into linear lifting and lowering motion along the axial direction of the bag insertion linkage via the axial drive arm. This, in turn, drives the bag insertion plate to lift and lower along the axial (vertical) direction. In the active bag insertion linkage transmission mechanism, the eccentric installation of the bag insertion eccentric wheel ensures that when the bag insertion drive roller rotates continuously, the outer ring of the bag insertion exerts a continuous and stable force on the active swing arm through the bag insertion connecting rod, avoiding motion jamming caused by rigid impact. The fixed connection between the active swing arm and the bag insertion drive shaft ensures no relative slippage during the swing motion, making the reciprocating rotation angle of the bag insertion drive shaft precisely controllable. In the driven bag insertion linkage transmission mechanism, the driven swing arm and the bag insertion... The fixed connection of the drive shaft ensures synchronous transmission of rotational motion, and the hinged structure at both ends of the axial drive arm allows for adaptive angle adjustment during movement. This transforms the swinging motion into linear lifting and lowering of the bag insertion linkage without any jamming, ensuring smooth lifting and lowering of the bag insertion plate driven by the bag insertion linkage and balanced force on both sides, thus preventing the bag insertion plate from tilting. Through the above transmission mechanism, the bag insertion plate can accurately descend when short-sized bags are stacked, inserting into the top or side gaps of the bags. The rigid structure of the bag insertion plate pushes the bags, which may be tilted due to their light weight, to fit against the side wall of the pressing base plate, preventing slippage caused by uneven stacking of bags, reducing manual handling operations, and ensuring the continuity of bag production.

[0013] Furthermore, the inserting linkage component is an inserting guide rail, and inserting connecting seats are fixedly installed at both the upper and lower ends of the inserting guide rail. The inserting plate is installed on the inserting mounting frame, and both ends of the inserting mounting frame are connected to the inserting guide rail through the upper inserting connecting seats. The inserting axial drive arm is hinged to the lower inserting connecting seat. The frame is provided with inserting guide seats at the corresponding positions of the inserting guide rail. The inserting guide rail is installed on the inserting guide seats and can be raised and lowered along the axial direction of the inserting guide seats.

[0014] Using the above technical solution, the insert linkage adopts an insert guide rail structure. Insert connecting seats are fixedly installed at the upper and lower ends of the guide rail. The upper insert connecting seat connects to the insert mounting frame (the insert plate is installed on the insert mounting frame), forming a fixed connection between the insert mounting frame and the insert guide rail. The lower insert connecting seat is hinged to the insert axial drive arm, serving as a power input point. A insert guide seat is provided on the frame corresponding to the insert guide rail, with the insert guide rail passing through it. The two form a sliding fit, allowing the insert guide rail to only move axially (vertically) and preventing radial offset. When the insert axial drive arm swings under the drive of the driven insert linkage mechanism, its end applies a pushing and pulling force to the insert guide rail through the hinged lower insert connecting seat. Under the rigid constraint of the insert guide seat, the insert guide rail moves stably axially, thereby driving the insert plate through the upper insert connecting seat. The mounting frame and insert plate are raised and lowered synchronously. The technical advantages are: the sliding cooperation between the insert guide seat and the insert guide rail provides precise guidance for the lifting and lowering motion of the guide rail, preventing radial swaying or tilting due to force, and ensuring a stable and controllable lifting trajectory for the insert plate; the fixed connection (such as bolt connection) between the insert connecting seat and the insert guide rail ensures no relative slippage during power transmission, reliably converting the swinging motion of the insert axial drive arm into the lifting and lowering action of the insert plate; both ends of the insert mounting frame are connected to the insert guide rail via the upper insert connecting seat, ensuring balanced force on both sides of the insert plate and no skew during lifting and lowering, ensuring that the lower end of the insert plate can accurately insert into the top or side gaps of the stacked bags. The rigid structure of the insert plate pushes the short, lightweight bags that are tilted to fit against the side wall of the pressing base plate, preventing bags from slipping due to uneven stacking, reducing manual handling, and ensuring continuous bag production.

[0015] Furthermore, the bag clamping drive assembly includes a bag clamping shaft rotatably mounted on the frame, a bag clamping transmission assembly mounted on one side of the frame, and a bag clamping drive source. The bag clamping arm is mounted on the bag clamping shaft. One end of the bag clamping transmission assembly is linked to the bag clamping drive source, and the other end is connected to the bag clamping shaft. As the bag clamping drive source rotates, it drives the bag clamping shaft to rotate back and forth, thereby allowing the bag clamping arm to move closer to or away from the pressing base plate along with the bag clamping shaft.

[0016] Using the above technical solution, the bag clamping drive source provides power, which is transmitted to the bag clamping shaft rotatably mounted on the frame via a bag clamping transmission assembly on one side of the frame. The bag clamping transmission assembly, acting as an intermediate transmission medium, converts the rotation of the bag clamping drive source into the reciprocating rotation of the bag clamping shaft (i.e., reciprocating oscillation around its own axis). The bag clamping arms are mounted on the bag clamping shaft, and the two are fixedly connected (e.g., keyed or welded) to achieve synchronous movement. The arms oscillate around the bag clamping shaft synchronously with its reciprocating rotation, thus enabling the bag clamping arms to move closer to or away from the pressure plate. The bag clamping shaft is rotatably mounted on the frame via bearings and other rotating support structures, ensuring stability during rotation and preventing radial swaying during the movement of the bag clamping arms, thus ensuring precise clamping position. The bag clamping arms can be spaced apart along the length of the bag clamping shaft, and the unified drive of the bag clamping shaft ensures consistent movement of all bag clamping arms. This design ensures that the clamping force is evenly distributed along the side of the pressing plate, preventing excessive local clamping force that could deform the bag or insufficient clamping force that would prevent effective fixation. The bag clamping transmission assembly stably transmits the power from the bag clamping drive source to the bag clamping shaft, causing the shaft to rotate back and forth. This results in the bag clamping arm swinging rhythmically as it approaches and moves away from the pressing plate. When approaching the pressing plate, the bag clamping arm smoothly contacts the bag from the side, applying lateral pressure to the bag through its interaction with the side wall of the pressing plate. When moving away, the bag clamping arm clears the bag's conveying path and does not interfere with the stacking of new bags onto the pressing plate. This mechanical transmission method offers reliable response and high precision, effectively applying a stable lateral clamping force to short-sized bags on the pressing plate. This counteracts the tendency for the bags to slip due to their short length and light weight, preventing them from falling off the pressing plate. This reduces manual bag handling and ensures the continuity and stability of the bag-making process.

[0017] Furthermore, the bag clamping drive source is a bag clamping drive motor, and the bag clamping transmission assembly includes a bag clamping swing arm fixedly installed on one side of the bag clamping shaft, a bag clamping drive shaft eccentrically installed at the output end of the bag clamping drive motor, and a bag clamping connecting rod installed between the bag clamping swing arm and the bag clamping drive shaft. One end of the bag clamping connecting rod is hinged to the bag clamping swing arm, and the other end is hinged to the bag clamping drive shaft. With the eccentric rotation of the bag clamping drive motor, the bag clamping swing arm is driven to reciprocate around the bag clamping shaft.

[0018] Using the above technical solution, the bag clamping drive source is powered by a bag clamping drive motor. The output end of the motor has an eccentrically mounted bag clamping drive shaft (i.e., there is an eccentricity between the axis of the bag clamping drive shaft and the axis of the motor output shaft). The bag clamping drive shaft is hinged to a bag clamping swing arm fixedly mounted on one side of the bag clamping shaft via a bag clamping connecting rod (one end of the bag clamping connecting rod is hinged to the bag clamping swing arm, and the other end is hinged to the bag clamping drive shaft). When the bag clamping drive motor drives the bag clamping drive shaft to rotate, the eccentrically mounted bag clamping drive shaft performs a circular motion around the motor output shaft. Its eccentric end generates a periodic pulling or pushing force on the bag clamping swing arm through the bag clamping connecting rod, causing the bag clamping swing arm to oscillate back and forth around the bag clamping shaft (i.e., the bag clamping swing arm drives the bag clamping shaft to oscillate back and forth around its own axis). The bag clamping arm is mounted on the bag clamping shaft and oscillates synchronously around the bag clamping shaft with its reciprocating rotation, thereby enabling the bag clamping arm to approach the pressing material. The movement involves the bag clamping arm moving towards or away from the pressure plate. The eccentric design of the bag clamping drive shaft converts the continuous rotation of the motor into the reciprocating swing of the bag clamping arm. The swing angle is limited by the eccentricity and the length of the bag clamping connecting rod, ensuring a stable and controllable opening and closing range of the bag clamping arm. When the bag clamping arm approaches the pressure plate, it can contact the bag from the side and apply stable pressure, effectively clamping short-sized bags by cooperating with the side wall of the pressure plate, thus counteracting the tendency for them to slip due to their short length and light weight. When the bag clamping arm moves away from the pressure plate, it completely clears the bag's conveying path, without interfering with the stacking of new bags onto the pressure plate. The hinged connection at both ends of the bag clamping connecting rod allows the angle between the connecting rod and the bag clamping arm / drive shaft to adapt during the rotation of the bag clamping drive shaft, avoiding motion interference and stress concentration caused by rigid connections, and ensuring smooth and reliable transmission.

[0019] Furthermore, the frame is provided with bag clamping mounting plates at both ends corresponding to the bag clamping shaft. The bag clamping shaft is rotatably mounted on the bag clamping mounting plate, and one end extends out of one side of the bag clamping mounting plate and connects to the bag clamping swing arm. Multiple bag clamping arms are installed at intervals on the bag clamping shaft. One end of each bag clamping arm is provided with a bag clamping seat fixedly mounted on the bag clamping shaft, and the other end is provided with a bag clamping plane for abutting and clamping against the pressing base plate. The bag clamping plane is adapted to the side wall corresponding to the pressing base plate.

[0020] Using the above technical solution, the clamping mounting plates at both ends of the clamping shaft on the frame form a support structure for both ends of the clamping shaft. The clamping shaft is rotatably mounted between the clamping mounting plates via bearings and other rotating connecting parts, allowing the clamping shaft to rotate stably around its own axis, avoiding radial sway or axial movement during rotation, and ensuring the rotational accuracy of the clamping shaft. Multiple clamping arms are installed at intervals along the length of the clamping shaft. One end of each clamping arm is fixedly connected to the clamping shaft via a clamping seat (e.g., welding or bolt fastening), ensuring that the clamping arm rotates synchronously with the clamping shaft. The clamping plane at the other end is adapted to the shape of the corresponding side wall of the pressing base plate (e.g., flat fit or arc matching). When the clamping shaft rotates back and forth driven by the clamping swing arm, the clamping arm swings around the shaft with the clamping shaft, and the clamping plane can stably contact the side wall of the pressing base plate from the side. The clamping mounting plates support both ends of the clamping shaft. The support structure ensures that the bag clamping shaft rotates without significant deflection or deformation, guaranteeing consistent movement of the multiple spaced bag clamping arms and preventing some arms from failing to accurately contact the bag due to shaft wobbling. The stable rotation of the clamping shaft ensures controllable arm swing angles, allowing the clamping plane to accurately conform to the side wall of the pressing plate, applying uniform lateral pressure to short bags stacked on the pressing plate. The multiple spaced bag clamping arms, distributed along the bag's width, distribute the clamping force across the bag's sides, preventing excessive local clamping force that could cause wrinkles or insufficient clamping. The adaptive design between the clamping plane and the pressing plate side wall increases the contact area and improves clamping friction, effectively counteracting the lateral slippage tendency of short bags due to their short length and light weight, preventing bags from falling off the pressing plate, reducing manual handling, and ensuring the continuity and stability of bag production.

[0021] Furthermore, the bag-separating and anti-sticking mechanism includes a bag-separating roller rotatably mounted on the frame and a bag-separating drive assembly for driving the bag-separating roller to rotate. Multiple baffles are provided on the outer circumference of the bag-separating roller, which divide the outer circumference of the bag-separating roller into multiple bag-separating areas. With the drive of the bag-separating drive assembly, the ends of the bags are separated one by one. The bag-separating drive assembly includes a bag-separating motor and a bag-separating transmission assembly. The bag-separating motor drives the bag-separating roller to rotate through the bag-separating transmission assembly. The bag insertion mechanism is used to feed the ends of the bags after heat sealing into the bag-separating areas one by one.

[0022] Using the above technical solution, the bag-separating roller is rotatably mounted on the frame or bag-inserting mounting plate via bearings, ensuring stable rotation without radial wobbling. Multiple baffles are fixedly installed on the outer circumference of the roller, spaced apart along its axial direction, dividing the outer circumference into multiple independent bag-separating zones. Each zone accommodates the end of one bag. The bag-separating drive assembly includes a bag-separating motor and a bag-separating transmission assembly (such as a pulley system, gear system, or chain drive). The bag-separating motor is connected to the bag-separating roller via the transmission assembly, providing rotational power. The bag-inserting mechanism sequentially feeds the heat-sealed bag ends into the bag-separating zones of the roller. When the bag-separating motor drives the bag-separating roller to rotate around its own axis via the bag-separating drive assembly, the baffles rotating synchronously with the bag-separating roller physically separate the ends of the bags in adjacent separation zones. This confines each bag end to an independent separation zone, preventing contact between adjacent bag ends. The baffles on the outer periphery of the bag-separating roller, through their physical separation, directly prevent contact adhesion between bag ends caused by residual temperature or static electricity after heat sealing, ensuring that each bag end exists independently without adhesion. The bag-separating drive assembly drives the bag-separating roller to rotate stably, coordinating with the bag insertion mechanism to feed bags one by one, ensuring that the bag ends enter the separation zones sequentially and are reliably separated by the baffles, guaranteeing the bag-separating process. Continuous and smooth operation; the ends of the bags separated by the baffles can naturally expand during subsequent stacking, avoiding stacking skewing caused by adhesion, reducing slippage of short-sized bags due to their light weight and uneven stacking, reducing the frequency of manual handling, and ensuring the continuity of bag production. The bag-splitting motor is preferably a servo motor. The bag-splitting transmission assembly includes a driven bag-splitting wheel mounted on the bag-splitting roller, a driving bag-splitting wheel mounted on the output end of the bag-splitting motor, and a bag-splitting synchronous belt wound between the driven and driving bag-splitting wheels. When the bag-splitting motor starts, the output shaft of the servo motor drives the driving bag-splitting wheel to rotate synchronously, and the driving bag-splitting wheel transmits power through the bag-splitting synchronous belt. The material is transferred to the bag-separating driven wheel, which drives the bag-separating roller to rotate around its own axis. The servo motor can precisely adjust the rotation speed and start / stop position of the bag-separating roller by controlling the output shaft speed and rotation angle. The meshing transmission between the bag-separating synchronous belt and the bag-separating drive wheel and the bag-separating driven wheel can prevent slippage and ensure that the rotation speed of the bag-separating roller matches the bag feeding speed of the bag insertion mechanism. The precise speed control of the servo motor allows the rotation speed of the bag-separating roller to be adjusted in real time according to the bag conveying frequency, ensuring that the end of each bag fed by the bag insertion mechanism can accurately enter the bag separation area of ​​the bag-separating roller, and avoiding misalignment caused by the bag end not fully entering the bag separation area due to the bag-separating roller speed being too fast or too slow.The non-slip transmission characteristic of the bag-separating synchronous belt ensures a constant transmission ratio between the driving and driven bag-separating wheels, resulting in smooth, fluctuation-free rotation of the bag-separating rollers. This, in turn, drives the partition plates to rotate at a uniform speed, reliably separating the ends of adjacent bags within independent separation zones. This prevents bags from sticking together after heat sealing. Through precise control of the servo motor and stable transmission of the synchronous belt, the bag-separating rollers can continuously and accurately separate the bag ends, avoiding stacking misalignment caused by adhesion, reducing slippage of short-sized bags due to their light weight and uneven stacking, minimizing manual handling operations, and ensuring the continuity of bag production.

[0023] Furthermore, the sealing and cutting mechanism includes a cutter, a heat-pressing blade mounting plate on which the cutter is mounted, heat-pressing blade lifting shafts disposed at both ends of the heat-pressing blade mounting plate, a cutter drive shaft rotatably disposed on the frame, and a cutter drive motor. The cutter drive motor is used to drive the cutter drive shaft to rotate. Both ends of the cutter drive shaft are provided with cutter drive assemblies connected to the heat-pressing blade lifting shaft and driving the cutter to move axially. The cutter drive assembly includes eccentrically mounted cutter eccentric bearings at both ends of the cutter drive shaft. The inner ring of the eccentric bearing is eccentrically connected to the cutter drive shaft, and the outer ring is provided with a heat-pressing blade hinge seat hinged to the heat-pressing blade lifting shaft. The eccentric bearing drives the heat-pressing blade lifting shaft to move axially along the frame as the cutter drive shaft rotates, thereby driving the cutter to seal and cut the bags one by one. The bag collection mechanism also includes a pressing upper plate disposed on the frame opposite to the pressing bottom plate, and a pressing drive assembly for driving the pressing upper plate axially closer to or further away from the pressing bottom plate. The pressing upper plate and the pressing bottom plate form a material collection channel for stacking bags. The pressing drive assembly includes pressing rods disposed at both ends of the pressing upper plate, a pressing drive shaft and a pressing transmission shaft rotatably disposed on the frame, and a pressing drive motor. The pressing drive motor drives the pressing transmission shaft to rotate. The pressing transmission shaft is connected to the pressing drive shaft through the pressing transmission assembly and drives the pressing drive shaft to rotate back and forth. Pressing rod swing arms are provided between both ends of the pressing drive shaft and the pressing rods. One end of the pressing rod swing arm is hinged to the pressing rod, and the other end is fixedly connected to the pressing drive shaft.

[0024] Using the above technical solution, the cutter drive motor drives the cutter drive shaft to rotate. Since the inner ring of the cutter eccentric bearing is eccentrically connected to the cutter drive shaft, and the outer ring is hinged to the hot-blade lifting shaft via the hot-blade hinge seat, when the cutter drive shaft rotates, the eccentric motion of the cutter eccentric bearing is converted into the axial lifting motion of the hot-blade lifting shaft along the frame, thereby driving the cutter mounted on the hot-blade mounting plate to rise and fall synchronously, achieving heat-sealing and cutting of each bag individually. This structure uses the eccentric bearing to stably convert rotational motion into linear lifting, ensuring a fixed cutter lifting trajectory and precise sealing position, avoiding skewed or uneven sealing lines at the bag ends due to unstable cutter motion, thus reducing the risk of lateral displacement of the bag due to irregular ends during subsequent stacking. In contrast, in previous generations of mechanisms, the pressing drive motor drives the pressing transmission shaft to rotate, and the pressing transmission… The moving shaft drives the pressing drive shaft to reciprocate through the pressing transmission assembly. Since one end of the pressing rod swing arm is fixedly connected to the pressing drive shaft and the other end is hinged to the pressing rod, the reciprocating rotation of the pressing drive shaft is converted into the swing of the pressing rod swing arm, which in turn drives the pressing upper plate to move axially closer to or away from the pressing bottom plate, so that a material collection channel for stacking bags is formed between the pressing upper plate and the pressing bottom plate. When the bags enter the material collection channel, the pressing upper plate is periodically raised and lowered under the drive of the pressing drive assembly, applying downward pressure to the stacked bags and compacting them. The compaction effect of the pressing upper plate increases the friction between the bags, while the pressing bottom plate provides stable support. The combination of the two can effectively prevent short bags from slipping off the bag collection mechanism during the stacking process due to their poor stability, reducing frequent manual handling operations and ensuring production continuity.

[0025] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a perspective view of an embodiment of the present utility model.

[0027] Figure 2 Explosion of this utility model embodiment Figure 1 .

[0028] Figure 3 Explosion of this utility model embodiment Figure 2 .

[0029] Figure 4 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 1 .

[0030] Figure 5 This is a schematic diagram of the structure of an embodiment of the present utility model. Figure 2 .

[0031] Figure 6 for Figure 5 A sectional view along the AA direction.

[0032] Figure 7This is a schematic diagram of the connection structure of an embodiment of the present utility model.

[0033] Figure 8 This is a three-dimensional schematic diagram of the pocket insertion mechanism according to an embodiment of the present utility model. Figure 1 .

[0034] Figure 9 This is a three-dimensional schematic diagram of the pocket insertion mechanism according to an embodiment of the present utility model. Figure 2 .

[0035] Figure 10 This is a three-dimensional schematic diagram of the bag-separating and anti-sticking mechanism and the bag-clamping mechanism in an embodiment of this utility model. Figure 1 .

[0036] Figure 11 This is a three-dimensional schematic diagram of the bag-separating and anti-sticking mechanism and the bag-clamping mechanism in an embodiment of this utility model. Figure 2 .

[0037] Figure 12 This is a three-dimensional schematic diagram of the bag collection mechanism according to an embodiment of the present utility model.

[0038] Figure 13 This is a three-dimensional schematic diagram of the sealing and cutting mechanism according to an embodiment of the present utility model. Figure 1 .

[0039] Figure 14 This is a three-dimensional schematic diagram of the sealing and cutting mechanism according to an embodiment of the present utility model. Figure 2 . Detailed Implementation

[0040] like Figures 1-14As shown, a sealing and cutting device for an anti-sticking bag making machine includes a frame 1. The frame 1 is equipped with a sealing and cutting mechanism 2, a bag-separating and anti-sticking mechanism 3, and a bag-collecting mechanism 4. The bag-separating and anti-sticking mechanism 3 is located between the sealing and cutting mechanism 2 and the bag-collecting mechanism 4. The bag-collecting mechanism 4 includes a pressing base plate 41 for stacking bag bodies a, a pressing upper plate 42 disposed on the frame 1 opposite to the pressing base plate 41, and a pressing drive assembly for driving the pressing upper plate 42 axially closer to or further away from the pressing base plate 41. The pressing upper plate 41 and the pressing base plate 42 form a space for stacking bag bodies a. The stacked material collection channel 43 includes a pressing drive assembly comprising pressing rods 44 at both ends of the pressing upper plate 41, a pressing drive shaft 45 and a pressing transmission shaft 46 rotatably mounted on the frame 1, and a pressing drive motor 47. The pressing drive motor 47 drives the pressing transmission shaft 46 to rotate via a pressing synchronous belt transmission mechanism 471. The pressing transmission shaft 46 is connected to the pressing drive shaft 45 via the pressing transmission assembly and drives the pressing drive shaft 45 to reciprocate. Pressing rods are provided between both ends of the pressing drive shaft 45 and the pressing rods 44. The swing arm 48 is hinged at one end to the pressure rod 44 and fixedly connected to the pressure drive shaft 45 at the other end. The pressure transmission assembly includes a pressure transmission swing arm 451 fixedly installed on one side of the pressure drive shaft 45, a pressure eccentric wheel (bearing) 461 eccentrically installed outside the pressure transmission shaft 46, a pressure outer ring portion 462 covering the pressure eccentric wheel (bearing) 461, and a pressure connecting rod 463. One end of the pressure connecting rod 463 is connected to the pressure outer ring portion 462, and the other end is hinged to the pressure transmission swing arm 451. When the pressing drive motor 47 drives the pressing transmission shaft 46 to rotate, the pressing connecting rod 463 pulls the pressing transmission swing arm 451 to rotate back and forth around the pressing drive shaft 45. Then, through the pressing rod swing arm 48 and the pressing rod 44, the pressing upper plate 42 is driven axially to move closer to or away from the pressing bottom plate 41, so that the bag a entering the collection channel 43 is stably stacked on the pressing bottom plate 41. At the same time, the bag collection mechanism 4 also includes a bag stacking assembly 40 that is set at the pressing bottom plate 41 and can be gradually moved down relative to the frame 1 to expand the collection channel 43.

[0041] like Figure 6 , Figure 10 , Figure 11As shown, the bag-separating anti-sticking mechanism 3 includes a bag-separating roller 31 rotatably mounted on the frame 3 and a bag-separating drive assembly that drives the bag-separating roller 31 to rotate. Multiple baffles 32 are provided on the outer circumferential surface of the bag-separating roller 31. The baffles 32 divide the outer circumference of the bag-separating roller 3 into multiple bag-separating areas b. With the drive of the bag-separating drive assembly, the ends of the bag bodies a are separated one by one. The bag-separating drive assembly includes a bag-separating servo motor 33 and a bag-separating transmission assembly. The bag-separating servo motor 33 drives the bag-separating roller 31 to rotate through the bag-separating transmission assembly. The bag insertion mechanism 5 is used to feed the ends of the bag bodies a after heat sealing into the bag-separating areas b one by one. The bag-separating transmission assembly includes a bag-separating driven wheel 311 mounted on the bag-separating roller 31, a bag-separating driving wheel 331 mounted on the output end of the bag-separating servo motor 33, and a bag-separating synchronous belt 330 wound between the bag-separating driven wheel 311 and the bag-separating driving wheel 331.

[0042] like Figure 6 , Figure 10 , Figure 11As shown, a bag clamping mechanism 6 is provided on one side of the pressing base plate 41 to clamp the bag body a from the bag collecting mechanism 4 onto the pressing base plate 41 from the side. The bag clamping mechanism 6 includes a plurality of bag clamping arms 61 arranged at intervals on one side of the pressing base plate 41 and a bag clamping drive assembly for driving the bag clamping arms 61 to move closer to or away from the pressing base plate 41. The bag clamping drive assembly includes a bag clamping shaft 62 rotatably mounted on the frame 1, a bag clamping transmission assembly 63 mounted on one side of the frame 1, and a bag clamping drive motor 64. The bag clamping arms 61 are mounted on the bag clamping shaft 62, and one end of the bag clamping transmission assembly 63 is connected to the bag clamping drive motor 64. The clamping motor 64 is linked to the other end of the clamping shaft 62. As the clamping motor 64 rotates, it drives the clamping shaft 62 to rotate back and forth, causing the clamping arm 61 to move closer to or further away from the pressing base plate 41. The clamping transmission assembly 63 includes a clamping swing arm 631 fixedly mounted on one side of the clamping shaft 62, a clamping drive shaft 641 eccentrically mounted on the output end of the clamping motor 64, and a clamping connecting rod 65 installed between the clamping swing arm 631 and the clamping drive shaft 641. One end of the clamping connecting rod 65 is hinged to the clamping swing arm 631, and the other end is connected to the clamping drive shaft 641. 41 is hinged and rotates eccentrically with the bag clamping drive motor 64, driving the bag clamping swing arm 631 to reciprocate around the bag clamping shaft 62. The frame 1 has bag clamping mounting plates 66 at both ends corresponding to the bag clamping shaft 62. The bag clamping shaft 62 is rotatably mounted on the bag clamping mounting plate 66, and one end extends out of the bag clamping mounting plate 66 and connects to the bag clamping swing arm 631. One end of the bag clamping arm 61 has a bag clamping seat 611 fixedly mounted on the bag clamping shaft 62, and the other end has a bag clamping plane 612 for abutting and clamping against the pressing base plate 41. The bag clamping plane 611 is aligned with the side wall of the pressing base plate 41. The adapter includes a bag clamping mounting plate 66 mounted on the bag insertion drive roller 56 via a bushing fixing member 661. A bag clamping adjusting cylinder 651 is provided on one side of the bag clamping connecting rod 65. One end of the bag clamping adjusting cylinder 651 is hinged to the bag clamping drive shaft 641, and the other end is connected to the bag clamping connecting rod 65. By controlling the bag clamping adjusting cylinder 651, the length of the bag clamping connecting rod 65 is controlled, thereby controlling the opening and closing stroke of the bag clamping arm 61. At the same time, the bag clamping drive motor 64 is mounted on the bag clamping mounting plate 66 on one side, and after passing through the bag clamping mounting plate 66, it is eccentrically connected to the bag clamping drive shaft 641 via a coupling.

[0043] like Figures 6-9As shown, above the bag separating and anti-sticking mechanism 3 is a bag inserting mechanism 5 that sequentially feeds the ends of the heat-sealed bags a into the bag separating and anti-sticking mechanism 3. The bag inserting mechanism 5 includes a bag inserting plate 51 disposed above the bag clamping arm 61 and a bag inserting drive assembly that drives the bag inserting plate 51 to move axially. The bag inserting drive assembly includes bag inserting guide rails 52 disposed on both sides of the bag inserting plate 51, a bag inserting drive shaft 53 rotatably disposed on the frame 1, a driven bag inserting linkage transmission mechanism 54 disposed at both ends of the bag inserting drive shaft 53 that drives the bag inserting guide rails 52 to move axially, and a bag inserting transmission assembly disposed at the frame 1 that drives the bag inserting drive shaft 53 to rotate back and forth. The bag inserting transmission assembly is used to drive the bag inserting drive shaft 53 to rotate back and forth, and to link the driven bag inserting... The bag insertion linkage transmission mechanism 54 drives the bag insertion plate 51 to move axially. The bag insertion transmission assembly includes a bag insertion drive motor 55, a bag insertion drive roller 56 rotatably mounted on the frame 1, and an active bag insertion linkage transmission mechanism rod 57 that connects the bag insertion drive roller 56 and the bag insertion transmission shaft 53. The bag insertion drive motor 55 drives the bag insertion drive roller 56 to rotate axially through the bag insertion synchronous belt transmission mechanism 551, and drives the bag insertion transmission shaft 53 to reciprocate through the active bag insertion linkage transmission mechanism 57. The active bag insertion linkage transmission mechanism 57 includes an active bag insertion swing arm 571 mounted on the bag insertion transmission shaft 53, an eccentric bag insertion wheel (bearing) 572 eccentrically mounted outside the bag insertion drive roller 56, and a cover for the eccentric bag insertion wheel 572. 72 consists of an outer ring portion 573 for inserting the pouch and a connecting rod 574 for inserting the pouch. One end of the connecting rod 574 is hinged to the active swing arm 571 for inserting the pouch, and the other end is connected to the outer ring portion 573 for inserting the pouch. The driven pouch linkage transmission mechanism 54 includes a driven swing arm 531 for inserting the pouch on the pouch drive shaft 53 and an axial drive arm 541 for inserting the pouch on the pouch guide rail 52. One end of the driven swing arm 531 is connected to the pouch drive shaft 53, and the other end is hinged to the axial drive arm 541 for inserting the pouch. One end of the axial drive arm 541 is hinged to the driven swing arm 531 for inserting the pouch, and the other end is hinged to the pouch guide rail 52. The pouch drive motor 55 drives the pneumatic drive roller 56 for inserting the pouch to rotate, thereby driving the active swing arm 571 for inserting the pouch. The shaft 53 swings back and forth around the center, driving the insert plate 51 to rise and fall axially. The insert plate 51 is installed on the insert mounting frame 511. The two ends of the insert mounting frame 511 are connected to the insert guide rail 52 through the upper insert connecting seat 581. The insert axial drive arm 541 is hinged to the lower insert connecting seat 582. The frame 1 is provided with insert guide seats 11 at the corresponding positions of the insert guide rail 52. The insert guide rail 52 is installed on the insert guide seat 11 and can rise and fall axially along the insert guide seat 11. The end of the frame 1 facing the insert plate 51 is provided with several air pipes 12. Preferably, there are two air pipes with a gap between them for the bag body a to pass through. The sealed bag body a passes between the air pipes 12 and is cooled by the air blowing from the air pipes 12.

[0044] like Figure 13 , Figure 14As shown, the sealing and cutting mechanism 2 includes a cutter 21, a heat-scalpel mounting plate 211 on which the cutter 21 is mounted, heat-scalpel lifting shafts 22 disposed at both ends of the heat-scalpel mounting plate 211, a cutter drive shaft 23 rotatably disposed on the frame 1, and a cutter drive motor 24. The cutter drive motor 24 is used to drive the cutter drive shaft 23 to rotate. The cutter drive shaft 23 has cutter drive assemblies at both ends that are connected to the heat-scalpel lifting shaft 22 and drive the cutter 21 to move axially. The cutter drive assembly includes cutter eccentric bearings 26 (eccentric drive wheels) eccentrically mounted at both ends of the cutter drive shaft 23. The inner ring of the cutter eccentric bearing 26 is eccentrically connected to the cutter drive shaft 23, and the outer ring is provided with a heat-scalpel hinge seat 261 hinged to the heat-scalpel lifting shaft 22. The cutter eccentric bearing 26 moves with the cutter drive shaft 26. The rotation drives the heating blade lifting shaft 22 to rise and fall along the axial direction of the frame 1, thereby driving the cutter 21 to seal and cut the bag a one by one. A cutter drive shaft 27 rotating on the frame 1 is provided between the cutter drive motor 24 and the cutter drive shaft 23. The cutter drive motor 24 drives the cutter drive shaft 27 to rotate through the cutter belt drive mechanism 241. The cutter drive shaft 27 drives the cutter drive shaft 23 to rotate through the cutter synchronous belt drive mechanism 271. One end of the cutter drive shaft 27 passes through the frame 1 and is provided with a brake disc 272. A brake cylinder 26 actuates the brake disc 272 on one side of the frame 1. Several photoelectric eye rings 231 that rotate with the cutter drive shaft 23 are provided on the cutter drive shaft 23. A photoelectric sensor 232 is provided on the frame 1 at the photoelectric eye rings 231.

[0045] The sealing and cutting device for a bag-making machine of this utility model has the following steps when in use: 1. Start the bag making machine sealing and cutting device. The bag insertion drive motor 55, bag clamping drive motor 64, cutter drive motor 24, pressing drive motor 34 and bag separating motor 42 will start running. Each mechanism will reset to the initial state and the bag separating roller 41 will start to rotate at a constant speed. 2. Bag a is conveyed to sealing and cutting mechanism 2. Cutter drive motor 24 drives cutter drive shaft 23 to rotate. Through cutter eccentric bearing 26, it links with hot knife lifting shaft 22 to drive cutter 21 to axially lift and cut bag a for heat sealing and cutting. 3. The bag insertion drive motor 55 drives the bag insertion drive roller 56 to rotate, and drives the bag insertion active swing arm 60 to swing through the active bag insertion linkage transmission mechanism, causing the bag insertion drive shaft 61 to rotate back and forth. The bag insertion drive shaft 61 drives the bag insertion guide rail 65 to descend axially along the bag insertion guide seat 66 through the driven bag insertion linkage transmission mechanism. The bag insertion plate 67 sends the sealed bag end into the bag separation area b of the bag separating roller 41. In the bag separation anti-sticking mechanism 3, the bag separating roller 41 separates the bag end through the baffle plate 43. 4. After the bag insertion plate 67 rises and resets, the bag clamping drive motor 64 starts and drives the bag clamping swing arm 70 to swing through the bag clamping transmission assembly, causing the bag clamping shaft 71 to rotate back and forth. The bag clamping arm 72 moves closer to the pressing base plate 31 to press and fix the stacked bags laterally. After completion, the bag clamping drive motor 64 rotates in the opposite direction and the bag clamping arm 72 resets and opens. 5. After being separated, the bags fall one by one into the collection channel 38. The pressing drive motor 34 drives the pressing upper plate 35 to periodically lift and compact the bags. As the stacking thickness increases, the pressing bottom plate 31 moves down to expand the space of the collection channel 38. Repeat steps 2-5, with each mechanism working together through its independent drive motor to continuously complete the sealing, cutting, inserting, clamping, and collecting processes until the set output is reached and the machine stops.

[0046] Throughout the process, the sealing and cutting mechanism 2, the bag separating and anti-sticking mechanism 3, the bag inserting mechanism 5, the bag clamping mechanism 6, and the bag collecting mechanism 4 are controlled by their respective independent drive motors to adapt to the processing needs of bags of different specifications.

Claims

1. A sealing and cutting device for an anti-sticking bag making machine, comprising a frame, wherein a sealing and cutting mechanism, a bag separating and anti-sticking mechanism, and a bag collecting mechanism are provided on the frame, the bag separating and anti-sticking mechanism being disposed between the sealing and cutting mechanism and the bag collecting mechanism, and the bag collecting mechanism including a pressing bottom plate for stacking bags, characterized in that: Above the bag separating and anti-sticking mechanism is a bag insertion mechanism that feeds the ends of the bags after heat sealing into the bag separating and anti-sticking mechanism one by one. On one side of the pressing base plate is a bag clamping mechanism that clamps the bags on the bag collecting mechanism onto the pressing base plate. The bag clamping mechanism includes several bag clamping arms disposed on one side of the pressing base plate and a bag clamping drive assembly that drives the bag clamping arms to move closer to or away from the pressing base plate.

2. The sealing and cutting device for an anti-sticking bag making machine according to claim 1, characterized in that: The bag insertion mechanism includes a bag insertion plate disposed above the bag clamping arm and a bag insertion drive assembly that drives the bag insertion plate to move axially. The bag insertion drive assembly includes bag insertion linkages disposed on both sides of the bag insertion plate, a bag insertion drive shaft rotatably disposed on the frame, a driven bag insertion linkage transmission mechanism disposed at both ends of the bag insertion drive shaft that drives the bag insertion linkages to move axially, and a bag insertion transmission assembly disposed at the frame that drives the bag insertion drive shaft to rotate back and forth. The bag insertion transmission assembly is used to drive the bag insertion drive shaft to rotate back and forth, and to drive the bag insertion plate to move axially by linkage with the driven bag insertion linkage transmission mechanism.

3. The sealing and cutting device for an anti-sticking bag making machine according to claim 2, characterized in that: The inserting transmission assembly includes an inserting drive motor, an inserting drive roller rotatably mounted on the frame, and an active inserting linkage transmission mechanism rod that connects the inserting drive roller and the inserting transmission shaft. The inserting drive motor drives the inserting drive roller to rotate axially, and drives the inserting transmission shaft to rotate back and forth through the active inserting linkage transmission mechanism.

4. The sealing and cutting device for an anti-sticking bag making machine according to claim 3, characterized in that: The active inserting link transmission mechanism includes an active inserting arm mounted on the inserting drive shaft, an eccentric inserting wheel eccentrically mounted outside the inserting drive roller, an inserting outer ring portion covering the inserting eccentric wheel, and an inserting connecting rod. One end of the inserting connecting rod is hinged to the active inserting arm, and the other end is connected to the inserting outer ring portion. The driven inserting link transmission mechanism includes an axial inserting drive arm connected to the inserting drive shaft and an inserting linkage component. One end of the driven inserting arm is connected to the inserting drive shaft, and the other end is hinged to the axial inserting drive arm. One end of the axial inserting drive arm is hinged to the driven inserting arm, and the other end is hinged to the inserting linkage component. The inserting drive motor drives the inserting pneumatic drive roller to rotate, causing the active inserting arm to swing back and forth around the inserting drive shaft, thereby driving the inserting plate to rise and fall axially.

5. The sealing and cutting device for an anti-sticking bag making machine according to claim 4, characterized in that: The inserting linkage component is an inserting guide rail. Inserting connecting seats are fixedly installed at both the upper and lower ends of the inserting guide rail. The inserting plate is installed on the inserting mounting frame. Both ends of the inserting mounting frame are connected to the inserting guide rail through the upper inserting connecting seats. The inserting axial drive arm is hinged to the lower inserting connecting seat. The frame is provided with inserting guide seats at the corresponding positions of the inserting guide rail. The inserting guide rail is installed on the inserting guide seats and can be raised and lowered along the axial direction of the inserting guide seats.

6. A sealing and cutting device for an anti-sticking bag making machine according to any one of claims 1-5, characterized in that: The bag clamping drive assembly includes a bag clamping shaft rotatably mounted on the frame, a bag clamping transmission assembly mounted on one side of the frame, and a bag clamping drive source. The bag clamping arm is mounted on the bag clamping shaft. One end of the bag clamping transmission assembly is linked to the bag clamping drive source, and the other end is connected to the bag clamping shaft. As the bag clamping drive source rotates, it drives the bag clamping shaft to rotate back and forth, thereby allowing the bag clamping arm to move closer to or away from the pressing base plate along with the bag clamping shaft.

7. The sealing and cutting device for an anti-sticking bag making machine according to claim 6, characterized in that: The bag clamping drive source is a bag clamping drive motor. The bag clamping transmission assembly includes a bag clamping swing arm fixedly installed on one side of the bag clamping shaft, a bag clamping drive shaft eccentrically installed at the output end of the bag clamping drive motor, and a bag clamping connecting rod installed between the bag clamping swing arm and the bag clamping drive shaft. One end of the bag clamping connecting rod is hinged to the bag clamping swing arm, and the other end is hinged to the bag clamping drive shaft. As the bag clamping drive motor rotates eccentrically, it drives the bag clamping swing arm to reciprocate around the bag clamping shaft.

8. The sealing and cutting device for an anti-sticking bag making machine according to claim 7, characterized in that: The frame is provided with bag clamping mounting plates at both ends of the bag clamping shaft. The bag clamping shaft is rotatably mounted on the bag clamping mounting plate, and one end of the bag clamping shaft extends through one side of the bag clamping mounting plate and is connected to the bag clamping swing arm. Multiple bag clamping arms are installed at intervals on the bag clamping shaft. One end of each bag clamping arm is provided with a bag clamping seat fixedly mounted on the bag clamping shaft, and the other end is provided with a bag clamping plane for abutting and clamping against the pressing base plate. The bag clamping plane is adapted to the side wall of the pressing base plate.

9. A sealing and cutting device for an anti-sticking bag making machine according to any one of claims 1-5, characterized in that: The bag-separating and anti-sticking mechanism includes a rotatable bag-separating roller mounted on a frame and a bag-separating drive assembly that drives the bag-separating roller to rotate. Multiple baffles are provided on the outer circumference of the bag-separating roller, which divide the outer circumference of the bag-separating roller into multiple bag-separating areas. With the drive of the bag-separating drive assembly, the ends of the bags are separated one by one. The bag-separating drive assembly includes a bag-separating motor and a bag-separating transmission assembly. The bag-separating motor drives the bag-separating roller to rotate through the bag-separating transmission assembly. The bag insertion mechanism is used to feed the ends of the bags after heat sealing into the bag-separating areas one by one.

10. A sealing and cutting device for an anti-sticking bag making machine according to any one of claims 1-5, characterized in that: The sealing and cutting mechanism includes a cutter, a heat-pressing blade mounting plate on which the cutter is mounted, heat-pressing blade lifting shafts located at both ends of the heat-pressing blade mounting plate, a cutter drive shaft rotatably mounted on the frame, and a cutter drive motor. The cutter drive motor drives the cutter drive shaft to rotate. Both ends of the cutter drive shaft are equipped with cutter drive assemblies connected to the heat-pressing blade lifting shaft and driving the cutter to move axially. The cutter drive assembly includes eccentrically mounted cutter eccentric bearings at both ends of the cutter drive shaft. The inner ring of the eccentric bearing is eccentrically connected to the cutter drive shaft, and the outer ring is equipped with a heat-pressing blade hinge seat hinged to the heat-pressing blade lifting shaft. The eccentric bearing drives the heat-pressing blade lifting shaft to move axially along the frame as the cutter drive shaft rotates, thereby driving the cutter to seal and cut the bags one by one. The bag mechanism also includes a pressing upper plate disposed on the frame opposite to the pressing bottom plate, and a pressing drive assembly for driving the pressing upper plate axially closer to or further away from the pressing bottom plate. The pressing upper plate and the pressing bottom plate form a material collection channel for stacking bags. The pressing drive assembly includes pressing rods disposed at both ends of the pressing upper plate, a pressing drive shaft and a pressing transmission shaft rotatably disposed on the frame, and a pressing drive motor. The pressing drive motor drives the pressing transmission shaft to rotate. The pressing transmission shaft is connected to the pressing drive shaft through the pressing transmission assembly and drives the pressing drive shaft to rotate back and forth. Pressing rod swing arms are provided between both ends of the pressing drive shaft and the pressing rods. One end of the pressing rod swing arm is hinged to the pressing rod, and the other end is fixedly connected to the pressing drive shaft.

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