Packaging bag heat-sealing compression molding equipment and packaging bag heat-sealing compression molding method

Abstract

The invention relates to the technical field of packaging bag processing, and particularly discloses packaging bag heat-sealing compression molding equipment and a packaging bag heat-sealing compression molding method, which are used for solving the problem of low packaging bag processing efficiency in the prior art. Comprising a heat-sealing forming part used for conducting hot-pressing edge sealing on a bag film A in the conveying process, a bag body winding part used for winding the bag film A subjected to heat sealing is arranged on the downstream of the heat-sealing forming part, and a cutting part used for cutting the bag film A is arranged between the heat-sealing forming part and the bag body winding part. The bag body rolling part comprises a rolling frame, and a center shaft sleeve is arranged in the middle of the upper end of the rolling frame. The packaging bag heat-sealing forming device is designed according to existing requirements, bag films in the conveying process can be subjected to heat-sealing forming, so that corresponding packaging bags are formed, then the formed packaging bags are wound through the bag body winding component, alternate winding is achieved by rapidly switching the winding rollers, and the influence of discharging on efficiency is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of packaging bag processing, in particular to packaging bag heat-sealing and pressing molding equipment and method. Background Art

[0002] Packaging bags refer to bags used to package various items, making it easy to transport and store goods during production and circulation. They are widely used in daily life and industrial production. The raw materials are melted and extruded into a film by a film blowing machine. The opening width and thickness of the film can be adjusted by controlling the size of the water circle, the size of the airflow, and the blowing speed. According to the needs, offset printing or copperplate printing is used to convert the plastic film from the original transparent and colorless state into a printed film with a variety of patterns and fonts, and then the single-layer film is folded into a double layer, and then a packaging bag is formed on the folded plastic film by hot pressing, and finally the packaging bag is rolled and stored, such as packaging bags in supermarkets or household garbage bags, etc. However, it is necessary to stop the machine when unloading the pressed packaging bags. For example, the existing patent announcement number CN118618713B discloses a packaging bag production folding and bundling machine. Although it can bundle the rolled packaging bags, each time the packaging bags are bundled, the upstream formed packaging bags cannot be continuously transported and need to be temporarily shut down, which will undoubtedly reduce efficiency.

[0003] Based on this, a packaging bag heat-sealing and pressing molding device and method are now provided, which can eliminate the disadvantages of the existing devices. Summary of the invention

[0004] The purpose of the present invention is to provide a packaging bag heat-sealing and pressing molding device and method, which solves the problem of reduced processing efficiency of packaging bags in the prior art.

[0005] To achieve the above object, the present invention provides the following technical solutions: The packaging bag heat-sealing and pressing forming equipment comprises a heat-sealing forming component for heat-pressing and sealing the bag film A during the transmission process, a bag body winding component for winding the heat-sealed bag film A is provided downstream of the heat-sealing forming component, and a cutting component for cutting the bag film A is provided between the heat-sealing forming component and the bag body winding component; The bag body winding component includes a winding frame, a center shaft sleeve is provided at the middle position of the upper end of the winding frame, a horizontally arranged center shaft is rotatably provided on the center shaft sleeve, a winding beam is fixedly provided at one end of the center shaft, and the other end of the center shaft is connected to a switching drive member for driving it to rotate, and a rotating column is rotatably provided at each end of the winding beam, one end of the rotating column is connected to the winding roller, and a locking component for adsorbing and fixing the bag film A is provided on the winding roller, and the end of the rotating column is connected to a winding drive member for driving it to rotate, and the rotating column can be driven to rotate by the winding drive member, and the rotating column drives the winding roller to rotate, thereby realizing the winding of the bag film A, and the winding frame is also provided with a unloading pusher for unloading the roll bag film A on the surface of the winding roller.

[0006] On the basis of the above technical solution, the present invention also provides the following optional technical solution: In an optional scheme: the locking assembly includes a central transmission block arranged inside the winding roller, guide end rods are symmetrically provided at both ends of the central transmission block, and a first guide ring and a second guide ring are fixedly provided on the inner wall of the winding roller to slide and match with the tension slide bar, so that the central transmission block can slide smoothly, and a plurality of telescopic slide grooves are arranged in an array on the outer side of the winding roller, and a telescopic slide bar is slidably provided in each telescopic slide groove, and a plurality of negative pressure adsorption holes connected with the inner cavity of the winding roller are arranged on the telescopic slide bar, and a plurality of telescopic transmission rods are rotatably provided on the outer side of the central transmission block, and the other end of the telescopic transmission rod is rotatably connected with the lower end of the telescopic slide bar, and the telescopic transmission rod is connected to the surface of the central transmission block by an expansion spring, an air guide cavity connected with the inner cavity of the winding roller is arranged inside the rotating column, and a negative pressure part for generating negative pressure inside the winding roller is arranged on the outer side of the rotating column, and a trigger part for cutting off the air guide cavity and pushing the central transmission block to move horizontally is provided on the rotating column, and the trigger part corresponds to the unloading pushing part.

[0007] In an optional scheme: the negative pressure member includes a rotating inner box fixedly arranged on the surface of the winding beam, a fixed outer box is rotatably arranged outside the rotating inner box, the fixed outer box and the rotating inner box are connected by a plurality of first connecting holes, a second connecting hole connected to the inner cavity of the rotating inner box is arranged on the surface of the rotating column, the exhaust end of the fixed outer box is connected to the exhaust pump through an exhaust duct, the exhaust pump is fixedly arranged on the outside of the winding frame, and the exhaust duct is a rigid tube group.

[0008] In an optional solution: the trigger member includes a blocking slip ring slidably arranged inside the air guide cavity, the blocking slip ring is used to block the second connecting hole, a blocking slip ring is fixedly provided on the inner wall of the blocking slip ring, a blocking guide rod is slidably provided in the blocking slip ring, a tail plate is provided at the end of the blocking guide rod, the tail plate is connected to the end of the rotating column by a first return spring, the inner end of the blocking guide rod is connected to the blocking slip ring by a second return spring, a limiting inner ring is fixedly provided on the inner wall of one end of the air guide cavity close to the winding roller, the limiting inner ring is used to limit excessive displacement of the blocking slip ring, and the end of the blocking guide rod is provided with a pressing end matching the end of the guide end rod.

[0009] The discharging opening that stirs material is that material is controlled by the conveyor belt of the present invention, and the displacement of the material to the storage tank is controlled by the conveyor belt of the present invention.

[0010] In an optional solution: a unloading chute for guiding the roll bag film A is provided at the end of the unloading base, and the unloading chute is fixedly connected to the end of the unloading base.

[0011] In an optional solution: the winding drive component includes a driven wheel on the outside of the rotating column, a driving bracket is fixedly provided at the upper end of the winding frame, a tension slide rod is provided at the lower end of the driving bracket, a tension slide seat is slidably provided at the lower end of the tension slide rod, the tension slide seat and the driving bracket are connected by a floating spring, a winding motor is fixedly provided on the tension slide seat, and a driving wheel is provided at the output end of the winding motor, and the driving wheel corresponds to the rotating column.

[0012] In an optional solution: the switching drive component includes a switching worm wheel arranged at the end of the central shaft, the upper side of the switching worm wheel is meshed with a switching worm, one end of the switching worm is rotatably connected to a fixed block on the winding frame, and the other end of the switching worm is connected to a switching motor for driving it to rotate, and the switching motor is fixedly arranged on the winding frame.

[0013] In the optional scheme: the heat sealing forming component includes an upper heat sealing bracket, a heat sealing guide column is respectively provided at the four corners of the upper heat sealing bracket, an upper guide roller and a lower guide roller are slidably provided on the heat sealing guide column, the upper guide roller and the lower guide roller include a heat sealing template, a guide roller is respectively rotated at both ends of the heat sealing template, and the upper and lower groups of guide rollers are tightly attached to the upper and lower surfaces of the bag film A, so that the bag film A can be smoothly transmitted, a first heat sealing push rod is fixedly provided on the top of the upper heat sealing bracket, a pushing and positioning frame is provided at the lower end of the heat sealing guide column, a second heat sealing push rod is provided on the pushing and positioning frame, a U-shaped frame is provided at the output ends of the second heat sealing push rod and the first heat sealing push rod, and the U-shaped frame is connected to the heat sealing connecting frame.

[0014] In the optional scheme: the cutting component includes a cutting beam, one end of the cutting beam is connected to the winding frame through a connecting frame, a cutting slide is slidably provided on the cutting beam, a cutting screw is threaded through the cutting slide, one end of the cutting screw is rotatably connected to a fixed block on the cutting beam, the other end of the cutting screw is connected to a cutting motor for driving the rotation thereof, the cutting motor is fixedly arranged on the cutting beam, a cutting knife group for cutting the bag film A is provided at the lower end of the cutting slide, and the cutting knife group has a double-blade structure so that it can cut back and forth.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention is designed according to existing needs. The bag film in the transmission process can be heat-sealed to form a corresponding packaging bag, and then the formed packaging bag is wound by the bag body winding component. Alternate winding is achieved by quickly switching the winding rollers, thereby reducing the influence of unloading on efficiency.

[0016] 2. The present invention quickly fixes the bag film by constructing negative pressure and expanding the diameter of the winding roller. Compared with traditional clamping, the adsorption fixation here is smoother and more efficient. In addition, when the winding roller that needs to be unloaded rotates to the lower side to unload, the unloading pusher can quickly release the expansion fixation and adsorption fixation here, which is convenient and quick to unload. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of one side of the present invention.

[0018] Figure 2 It is a structural schematic diagram of the other side of the present invention.

[0019] Figure 3 It is a schematic structural diagram of one side of the bag body rolling component of the present invention.

[0020] Figure 4 It is a schematic diagram of the structure of the other side of the bag body rolling component of the present invention.

[0021] Figure 5 It is a cross-sectional view of the bag body rolling component of the present invention.

[0022] Figure 6 It is a schematic diagram of the structure inside the winding roller of the present invention.

[0023] Figure 7 It is a schematic diagram of the structure of the heat-sealed forming component of the present invention.

[0024] Figure 8 It is a schematic diagram of the structure of the cutting component of the present invention.

[0025] Fig. 9 It is a schematic diagram of the structure of the heat-sealing connecting frame of the present invention.

[0026] Fig.10 It is a structural schematic diagram of the rotating inner box and the fixed outer box of the present invention.

[0027] Fig.11 It is a schematic diagram of the structure of the driving wheel and the rotating column of the present invention.

[0028] Fig.12 It is a schematic diagram of the blocking guide rod structure of the present invention.

[0029] Fig.13 It is a schematic diagram of the structure of the unloading rack of the present invention.

[0030] Notes on reference numerals: bag film A, bag body winding component 100, toggle guide rod 101, toggle push plate 102, rotating inner box 103, fixed outer box 104, central shaft 105, switching motor 106, central shaft sleeve 107, switching worm 108, switching worm gear 109, driving bracket 110, driven wheel 111, winding motor 112, tension slide bar 113, tension slide seat 114, driving wheel 115, rotating column 116, winding roller 117, winding crossbeam 118, unloading rack 119, unloading slide 120, unloading motor 121, unloading screw 122, unloading base 123, unloading slide seat 124, unloading rack 125, limit block 126, unloading support rack 127, traction spring 128; A first guide ring 129, a telescopic slide groove 130, a negative pressure adsorption hole 131, a telescopic slider 132, a guide end rod 133, a second guide ring 134, an air guide cavity 135, a limit inner ring 136, a first connecting hole 137, an air pump 138, an air extraction duct 139, a tail plate 140, a first return spring 141, a blocking guide rod 142, a blocking sliding ring 143, a blocking sliding ring 144, a second return spring 145, a second connecting hole 146, an expansion spring 147, a central transmission block 148, and a telescopic transmission rod 149; Cutting component 200, cutting beam 201, cutting screw 202, cutting slide 203, cutting motor 204, cutting knife set 205; Heat sealing forming component 300, upper heat sealing bracket 301, guide roller 302, first heat sealing push rod 303, U-shaped frame 304, heat sealing connecting frame 305, heat sealing template 306, heat sealing guide column 308, pushing and positioning frame 309, and second heat sealing push rod 310. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] like Figure 1-Figure 13 As shown, the embodiment of the present invention provides a packaging bag heat-sealing and pressing molding device, including a heat-sealing and molding component 300 for heat-sealing and sealing the bag film A during the transmission process, a bag body winding component 100 for winding the heat-sealed bag film A is provided downstream of the heat-sealing and molding component 300, and a cutting component 200 for cutting the bag film A is provided between the heat-sealing and molding component 300 and the bag body winding component 100, wherein the bag body winding component 100 can be unloaded without stopping the machine, which greatly improves the processing efficiency; The bag body winding component 100 includes a winding frame 125, a central shaft sleeve 107 is provided in the middle position of the upper end of the winding frame 125, a horizontally arranged central shaft 105 is rotatably provided on the central shaft sleeve 107, a winding beam 118 is fixedly provided at one end of the central shaft 105, and the other end of the central shaft 105 is connected to a switching driving member for driving its rotation, a rotating column 116 is rotatably provided at both ends of the winding beam 118, one end of the rotating column 116 is connected to the winding roller 117, and a locking component for adsorbing and fixing the bag film A is provided on the winding roller 117, and the end of the rotating column 116 is connected to a winding driving member for driving its rotation, and the rotating column 116 can be driven to rotate by the winding driving member, and the rotating column 116 drives the winding roller 117 to rotate, thereby realizing the winding of the bag film A, and the winding frame 125 is also provided with a discharging pushing member for discharging the roll bag film A on the surface of the winding roller 117 like Figure 6As shown, the locking assembly includes a central transmission block 148 arranged inside the winding roller 117, and guide end rods 133 are symmetrically provided at both ends of the central transmission block 148. A first guide ring 129 and a second guide ring 134 that are slidably matched with the tension slide bar 113 are fixedly provided on the inner wall of the winding roller 117, so that the central transmission block 148 can slide smoothly. A plurality of telescopic slide grooves 130 are distributed in an array on the outer side of the winding roller 117, and a telescopic slider 132 is slidably provided in each telescopic slide groove 130. A plurality of negative pressure adsorption holes 131 that are connected to the inner cavity of the winding roller 117 are distributed on the telescopic slider 132. A plurality of telescopic transmission rods 149 are rotatably provided on the outer side of the central transmission block 148, and the other end of the telescopic transmission rod 149 is rotatably connected to the lower end of the telescopic slider 132. The telescopic transmission rod 149 is connected to the surface of the central transmission block 148 by an expansion spring 147, so as to push out the telescopic slider 132, thereby tensioning the wound bag film A. When the telescopic slider 132 is retracted into the telescopic slide 130, a larger unloading gap can be formed to facilitate unloading. The rotating column 116 is provided with an air guide cavity 135 connected to the inner cavity of the winding roller 117. The outer side of the rotating column 116 is provided with a negative pressure member for generating negative pressure inside the winding roller 117. Under the action of the negative pressure member, the position of the telescopic slider 132 generates suction, thereby completing the rapid adsorption and fixation of the bag film A. The rotating column 116 is provided with a trigger member for cutting off the air guide cavity 135 and pushing the central transmission block 148 to move horizontally. The trigger member corresponds to the unloading push member. Under the action of the trigger member, the second connecting hole 146 is blocked. At this time, the negative pressure channel is cut off, and then the guide end rod 133 is pushed, so that the central transmission block 148 moves horizontally. When the central transmission block 148 moves horizontally, it will cooperate with the transmission of the telescopic transmission rod 149, so that the telescopic slider 132 is retracted into the telescopic slide 130, thereby canceling the locking of the roll bag film A. The negative pressure member includes a rotating inner box 103 fixedly arranged on the surface of a winding cross beam 118, a fixed outer box 104 is rotatably arranged outside the rotating inner box 103, the fixed outer box 104 and the rotating inner box 103 are connected through a plurality of first connecting holes 137, a second connecting hole 146 connected to the inner cavity of the rotating inner box 103 is arranged on the surface of the rotating column 116, the air extraction end of the fixed outer box 104 is connected to the air extraction pump 138 through the air extraction conduit 139, and the air extraction pump 138 is fixedly arranged on the winding cross beam 118. On the outside of the frame 125, the air extraction duct 139 here is a rigid tube group, so it can assist in fixing the position of the fixed outer box 104. Of course, a positioning rod group can also be set to position the fixed outer box 104. When the air extraction pump 138 works, the air inside the fixed outer box 104 and the rotating inner box 103 is extracted, and the air inside the winding roller 117 is also extracted, so that negative pressure is formed at the position of the negative pressure adsorption hole 131, thereby completing the rapid adsorption and fixation of the bag film A, without clamping the end of the bag film A, and improving the switching efficiency; The trigger member includes a blocking slip ring 144 slidably arranged inside the air guide cavity 135, the blocking slip ring 144 is used to block the second connecting hole 146, a blocking slip ring 143 is fixedly provided on the inner wall of the blocking slip ring 144, a blocking guide rod 142 is slidably provided in the blocking slip ring 143, a tail plate 140 is provided at the end of the blocking guide rod 142, the tail plate 140 is connected to the end of the rotating column 116 by a first return spring 141, the inner end of the blocking guide rod 142 is connected to the blocking slip ring 143 by a second return spring 145, a limiting inner ring 136 is fixedly provided on the inner wall of one end of the air guide cavity 135 close to the winding roller 117, the limiting inner ring 136 is used to limit the excessive displacement of the blocking slip ring 144, and the end of the blocking guide rod 142 is provided with a tail plate 140. The tail plate 140 is connected to the end of the rotating column 116 by a first return spring 141, and the inner end of the blocking guide rod 142 is connected to the blocking slip ring 143 by a second return spring 145. The end of the guide end rod 133 is matched with the end of the guide end rod 133. When unloading, the unloading pusher will generate a thrust on the end of the winding roller 117 on the lower side. After the tail plate 140 is thrusted, it will drive the blocking guide rod 142 to slide toward the winding roller 117. When the blocking guide rod 142 moves, it will drive the blocking slip ring 144 to slide along the air guide cavity 135. The blocking slip ring 144 will first block the second connecting hole 146, thereby cutting off the negative pressure channel. At this time, the adsorption force of the contact winding roller 117 on the bag film A is exerted. As the blocking guide rod 142 continues to move, the end of the guide end rod 133 will be pushed to produce displacement, and the horizontal movement of the central transmission block 148 will pull the telescopic slider 132 into the telescopic slide groove 130 through the telescopic transmission rod 149, so that the roll bag film A can be unlocked; It should be noted that the width of the bag film A is smaller than the length of the telescopic slider 132, so the negative pressure adsorption hole 131 here will not be completely covered; like Figure 1-Figure 4As shown, the unloading pusher includes an unloading base 123 arranged on the side of the winding frame 125, the unloading base 123 is located below the winding roller 117, the unloading base 123 is connected to the winding frame 125 through the unloading support frame 127, and a toggle push plate 102 and an unloading slide 124 are slidably provided on the upper end of the unloading base 123, and the toggle push plate 102 corresponds to the position of the tail plate 140 at the end of the rotating column 116 so as to push it to cut off A negative pressure channel is provided, and a toggle guide rod 101 is slidably penetrated on the toggle push plate 102, and both ends of the toggle guide rod 101 are connected to the limit stopper 126 at the upper end of the unloading base 123, and a unloading screw rod 122 is threadedly provided on the unloading slide 124, and one end of the unloading screw rod 122 is rotatably connected to the limit stopper 126, and the other end of the unloading screw rod 122 is connected to the unloading motor 121 for driving the unloading screw rod 122 to rotate, and the upper end of the unloading slide 124 is provided with a The unloading slide 124 is pushed by the roll bag film A, and the unloading slide 124 is connected to the push plate 102 through a traction spring 128. Under the drive of the unloading motor 121, the unloading screw 122 and the unloading slide 124 rotate relative to each other. Under the action of the thread, the unloading slide 124 slides along the surface of the unloading base 123, so that the unloading rack 119 can be driven to move. When the unloading rack 119 moves, the roll bag outside the lower winding roller 117 will be moved. The film A is pushed out. When the unloading slide 124 moves, the traction spring 128 drives the push plate 102 to move horizontally. The push plate 102 generates a thrust on the end of the tail plate 140. It should be noted that the unloading rack 119 will contact the roll bag film A only when the push plate 102 slides to the surface of the limit stopper 126. Under the push of the push plate 102, the negative pressure channel is cut off. At this time, the locking assembly on the winding roller 117 is unlocked to prepare for unloading. The end of the unloading base 123 is provided with a unloading slide 120 for guiding the roll bag film A. The unloading slide 120 is fixedly connected to the end of the unloading base 123, so that the unloading can be smoothly guided; The winding drive member includes a driven wheel 111 outside the rotating column 116, a driving bracket 110 is fixedly provided at the upper end of the winding frame 125, a tension slide bar 113 is provided at the lower end of the driving bracket 110, a tension slide seat 114 is slidably provided at the lower end of the tension slide bar 113, the tension slide seat 114 and the driving bracket 110 are connected by a floating spring, a winding motor 112 is fixedly provided on the tension slide seat 114, and a driving wheel 115 is provided at the output end of the winding motor 112 The driving wheel 115 corresponds to the rotating column 116. Under the action of the floating spring, the driving wheel 115 and the rotating column 116 are pressed and contacted. Under the drive of the winding motor 112, the driving wheel 115 drives the driven wheel 111 to rotate, and the driven wheel 111 drives the winding roller 117 to rotate through the rotating column 116, so that the bag film A is wound around the surface of the winding roller 117. The driving wheel 115 and the rotating column 116 are designed to float, so when the winding roller 117 is switched, the drive docking can be completed quickly; The switching drive member includes a switching worm gear 109 disposed at the end of the central shaft 105, the upper side of the switching worm gear 109 is meshed with a switching worm 108, one end of the switching worm 108 is rotatably connected to a fixed block on the winding frame 125, and the other end of the switching worm 108 is connected to a switching motor 106 for driving the switching worm 108 to rotate, and the switching motor 106 is fixedly disposed on the winding frame 125. Under the drive of the switching motor 106, the switching worm 108 drives the switching worm gear 109 to rotate, and the switching worm gear 109 drives the central shaft 105 to rotate, thereby driving the winding beam 118 to flip, so as to switch the winding position; The heat sealing forming component 300 includes an upper heat sealing bracket 301, and a heat sealing guide column 308 is respectively provided at the four corners of the upper heat sealing bracket 301. An upper guide roller and a lower guide roller are slidably provided on the heat sealing guide column 308. The upper guide roller and the lower guide roller include a heat sealing template 306. A guide roller 302 is rotated at both ends of the heat sealing template 306. The upper and lower groups of guide rollers 302 are tightly attached to the upper and lower surfaces of the bag film A, so that the bag film A can be smoothly transmitted. A first heat sealing push rod 303 is fixedly provided on the top of the upper heat sealing bracket 301, and a push positioning frame 309 is provided at the lower end of the heat sealing guide column 308. A second heat sealing push rod 303 is provided on the push positioning frame 309. A push rod 310, a U-shaped frame 304 is provided at the output end of the second heat-sealing push rod 310 and the first heat-sealing push rod 303, and the U-shaped frame 304 is connected to the heat-sealing connecting frame 305. The first heat-sealing push rod 303 and the second heat-sealing push rod 310 are extended and shortened, so that the upper and lower pairs of heat-sealing connecting frames 305 are attached to and away from each other. The two heat-sealing connecting frames 305 are provided with heating strips for heating the surface of the bag film A. When the two heat-sealing connecting frames 305 are close to each other, the heat generated by the heating strips makes the edges of the bag film A sealed, so as to construct a packaging bag structure. A dotted line cutting strip is also provided at both ends of the heat-sealing connecting frame 305, so that dotted lines are formed on both sides of the sealed packaging bag for subsequent tearing; The cutting component 200 includes a cutting beam 201, one end of which is connected to the winding frame 125 through a connecting frame, a cutting slide 203 is slidably provided on the cutting beam 201, a cutting screw 202 is threadedly passed through the cutting slide 203, one end of the cutting screw 202 is rotatably connected to a fixed block on the cutting beam 201, and the other end of the cutting screw 202 is connected to a cutting motor 204 for driving the cutting screw 202 to rotate, the cutting motor 204 is fixedly arranged on the cutting beam 201, and a cutting knife group 205 for cutting the bag film A is provided at the lower end of the cutting slide 203, under the action of the cutting motor 204, the cutting screw 202 and the cutting slide 203 rotate relative to each other, and under the action of the thread, the cutting slide 203 slides on the surface of the cutting beam 201, so that the cutting knife group 205 moves horizontally to complete the cutting of the bag film A.

[0033] Working principle: In actual use, the bag film A passes through the heat-sealing forming component 300, and the upper and lower pairs of heat-sealing connecting frames 305 are made to fit together and move away from each other through the extension and contraction of the first heat-sealing push rod 303 and the second heat-sealing push rod 310. The two heat-sealing connecting frames 305 are provided with heating strips for heating the surface of the bag film A. When the two heat-sealing connecting frames 305 are close to each other, the heat generated by the heating strips seals the edges of the bag film A on both sides, thereby forming a packaging bag structure; When one winding roller 117 has finished winding, the winding beam 118 is driven to rotate by switching the driving member, so that the unloaded winding roller 117 is rotated upward, and the bag film A is cut by the cutting component 200. When switching, the unloading screw 122 and the unloading slide 124 rotate relative to each other under the drive of the unloading motor 121. Under the action of the thread, the unloading slide 124 slides along the surface of the unloading base 123, so that the unloading rack 119 can be driven to move. When the unloading rack 119 moves, it will push the lower The roll film A on the outside of the side winding roller 117 is pushed out. When the unloading slide 124 moves, the traction spring 128 drives the push plate 102 to move horizontally. The push plate 102 generates a thrust on the end of the tail plate 140. It should be noted that the unloading rack 119 will contact the roll film A only when the push plate 102 slides to the surface of the limit stopper 126. Under the push of the push plate 102, the negative pressure channel is cut off. At this time, the locking assembly on the winding roller 117 is unlocked to prepare for unloading. The specific unlocking is as follows: the unloading pusher will generate a thrust on the end of the winding roller 117 on the lower side. After the tail plate 140 is subjected to the thrust, it will drive the blocking guide rod 142 to slide toward the winding roller 117. When the blocking guide rod 142 moves, it will drive the blocking slip ring 144 to slide along the air guide cavity 135. The blocking slip ring 144 will first block the second connecting hole 146, thereby cutting off the negative pressure channel. At this time, the adsorption force of the contact winding roller 117 on the bag film A, as the blocking guide rod 142 continues to move, the end of the guide end rod 133 will be pushed to produce displacement, and the horizontal movement of the central transmission block 148 will pull the telescopic slider 132 into the telescopic slide groove 130 through the telescopic transmission rod 149, so that the roll bag film A can be unlocked.

[0034] When the unloaded winding roller 117 rotates to the upper part, the rotating column 116 will be pressed and contacted with the driving wheel 115. At this time, the upper winding roller 117 will be driven to rotate so as to wind the bag film A. At the same time, the negative pressure channel inside the winding roller 117 is reconnected. At this time, suction will be generated on the outside of the winding roller 117, so that the end of the bag film A can be quickly adsorbed and fixed, so that the bag film A can continue to be wound smoothly.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A packaging bag heat-sealing and pressing molding device, comprising a heat-sealing and molding component (300), a bag body rolling component (100) being arranged downstream of the heat-sealing and molding component (300), and a cutting component (200) being arranged between the heat-sealing and molding component (300) and the bag body rolling component (100); Features: The bag body winding component (100) comprises a winding frame (125), a central shaft sleeve (107) is provided at the middle position of the upper end of the winding frame (125), a horizontally arranged central shaft (105) is rotatably provided on the central shaft sleeve (107), a winding crossbeam (118) is fixedly provided at one end of the central shaft (105), and the other end of the central shaft (105) is connected to a switching drive member for driving the central shaft (105) to rotate; A rotating column (116) is rotatably provided at each end of the winding beam (118), one end of the rotating column (116) is connected to the winding roller (117), the winding roller (117) is provided with a locking assembly for adsorbing and fixing the bag film A, the end of the rotating column (116) is connected to a winding driving member for driving the rotating column (116), and the winding frame (125) is also provided with a discharging pushing member for discharging the roll bag film A on the surface of the winding roller (117).

2. The packaging bag heat-sealing and pressing molding equipment according to claim 1, characterized in that: The locking assembly comprises a central transmission block (148) arranged inside the winding roller (117), guide end rods (133) are symmetrically arranged at both ends of the central transmission block (148), a first guide ring (129) and a second guide ring (134) are fixedly arranged on the inner wall of the winding roller (117) and are slidably matched with the tension slide rod (113), so that the central transmission block (148) can slide smoothly, a plurality of telescopic slide grooves (130) are arranged in an array on the outer side of the winding roller (117), a telescopic slider (132) is slidably arranged in each telescopic slide groove (130), and a plurality of negative pressure adsorption holes (131) are arranged on the telescopic slider (132) and are connected to the inner cavity of the winding roller (117). A plurality of telescopic transmission rods (149) are rotatably provided on the outer side of the central transmission block (148); the other end of the telescopic transmission rod (149) is rotatably connected to the lower end of the telescopic slider (132); the telescopic transmission rod (149) is connected to the surface of the central transmission block (148) via an expansion spring (147); an air guide cavity (135) communicating with the inner cavity of the winding roller (117) is provided inside the rotating column (116); a negative pressure member for generating negative pressure inside the winding roller (117) is provided on the outer side of the rotating column (116); a trigger member for cutting off the air guide cavity (135) and pushing the central transmission block (148) to move horizontally is provided on the rotating column (116); the trigger member corresponds to the unloading push member.

3. The packaging bag heat-sealing and pressing molding equipment according to claim 2, characterized in that: The negative pressure member comprises a rotating inner box (103) fixedly arranged on the surface of a winding beam (118); a fixed outer box (104) is rotatably arranged outside the rotating inner box (103); the fixed outer box (104) and the rotating inner box (103) are connected via a plurality of first connecting holes (137); a second connecting hole (146) connected to the inner cavity of the rotating inner box (103) is provided on the surface of the rotating column (116); an exhaust end of the fixed outer box (104) is connected to an exhaust pump (138) via an exhaust duct (139); the exhaust pump (138) is fixedly arranged on the outside of the winding frame (125); and the exhaust duct (139) is a rigid tube group.

4. The packaging bag heat-sealing and pressing molding equipment according to claim 3, characterized in that: The trigger member comprises a blocking slip ring (144) slidably arranged inside the air guide cavity (135), the blocking slip ring (144) being used to block the second connecting hole (146), a blocking slip ring (143) being fixedly arranged on the inner wall of the blocking slip ring (144), a blocking guide rod (142) being slidably arranged in the blocking slip ring (143), a tail plate (140) being arranged at the end of the blocking guide rod (142), and the tail plate (140) and the end of the rotating column (116) being connected by The first return spring (141) is connected, the inner end of the blocking guide rod (142) is connected to the blocking sliding ring (143) via a second return spring (145), a limiting inner ring (136) is fixedly provided on the inner wall of one end of the air guide cavity (135) close to the winding roller (117), and the limiting inner ring (136) is used to limit excessive displacement of the blocking sliding ring (144), and the end of the blocking guide rod (142) is provided with a pressing end that matches the end of the guide end rod (133).

5. The packaging bag heat-sealing and pressing molding equipment according to claim 2, characterized in that: The unloading push member comprises an unloading base (123) arranged on the side of the winding frame (125), the unloading base (123) being located below the winding roller (117), the unloading base (123) being connected to the winding frame (125) via the unloading support frame (127), a toggle push plate (102) and a unloading slide (124) being slidably provided on the upper end of the unloading base (123), the toggle push plate (102) corresponding to the position of the tail plate (140) at the end of the rotating column (116) so as to push it to cut off the negative pressure channel, and a toggle guide rod (124) being slidably passed through the toggle push plate (102) 101), both ends of the toggle guide rod (101) are connected to the limit block (126) at the upper end of the unloading base (123), a unloading screw rod (122) is threadedly provided on the unloading slide (124), one end of the unloading screw rod (122) is rotatably connected to the limit block (126), and the other end of the unloading screw rod (122) is connected to the unloading motor (121) for driving the unloading screw rod (122) to rotate, and a unloading slide rod (124) for pushing the roll bag film A is provided at the upper end of the unloading slide rod (124), and the unloading slide rod (124) is connected to the toggle push plate (102) via a traction spring (128).

6. The packaging bag heat-sealing and pressing molding equipment according to claim 5, characterized in that: A discharging chute (120) for guiding the roll bag film A is provided at the end of the discharging base (123); the discharging chute (120) is fixedly connected to the end of the discharging base (123).

7. The packaging bag heat-sealing and pressing molding equipment according to claim 1, characterized in that: The winding drive component comprises a driven wheel (111) outside a rotating column (116); a driving bracket (110) is fixedly provided at the upper end of the winding frame (125); a tension slide bar (113) is provided at the lower end of the driving bracket (110); a tension slide seat (114) is slidably provided at the lower end of the tension slide bar (113); the tension slide seat (114) and the driving bracket (110) are connected via a floating spring; a winding motor (112) is fixedly provided on the tension slide seat (114); a driving wheel (115) is provided at the output end of the winding motor (112); and the driving wheel (115) corresponds to the rotating column (116).

8. The packaging bag heat-sealing and pressing molding equipment according to claim 1, characterized in that: The switching drive member comprises a switching worm wheel (109) arranged at the end of the central shaft (105); the upper side of the switching worm wheel (109) is meshed with a switching worm (108); one end of the switching worm (108) is rotatably connected to a fixed block on a winding frame (125); the other end of the switching worm (108) is connected to a switching motor (106) for driving the switching worm to rotate; the switching motor (106) is fixedly arranged on the winding frame (125).

9. The packaging bag heat-sealing and pressing molding equipment according to claim 1, characterized in that: The cutting component (200) comprises a cutting beam (201), one end of the cutting beam (201) is connected to the winding frame (125) through a connecting frame, a cutting slide (203) is slidably provided on the cutting beam (201), a cutting screw (202) is threadedly passed through the cutting slide (203), one end of the cutting screw (202) is rotatably connected to a fixed block on the cutting beam (201), the other end of the cutting screw (202) is connected to a cutting motor (204) for driving the cutting screw to rotate, the cutting motor (204) is fixedly arranged on the cutting beam (201), and a cutting knife group (205) for cutting the bag film A is provided at the lower end of the cutting slide (203), the cutting knife group (205) is a double-blade structure so that it can cut back and forth.

10. A processing method of the packaging bag heat-sealing and pressing molding equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Pass the bag film A through the heat-sealing forming component (300), and when two heat-sealing connecting frames (305) are brought close together, the heat generated by the heating strips seals the edges of both sides of the bag film A, thereby forming a packaging bag structure; Step 2: When a winding roller (117) has finished winding, the winding beam (118) is driven to rotate by switching the driving member, thereby rotating the unloaded winding roller (117) upward, and the bag film A is cut by the cutting component (200), and the adsorption force on the outer side of the winding roller (117) adsorbs and fixes the end of the bag film A; Step 3: The unloading pusher will push out the roll bag film A on the lower side, and at the same time release the lock of the locking component on the roll bag film A, so that the roll bag film A can be discharged smoothly, thereby realizing continuous winding operation.

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