Packaging bag film blowing device

Abstract

The invention discloses a packaging bag film blowing device, and belongs to the technical field of film blowing process.The packaging bag film blowing device comprises a workbench assembly, an air blowing supporting mechanism is fixedly connected to the center of the top of the workbench assembly, and an air guiding mechanism is fixedly connected to the bottom of the air blowing supporting mechanism; and the outer wall of the blowing supporting mechanism is rotationally connected with a material conveying mechanism, a solid ring assembly is installed at the position, on the top of the material conveying mechanism, of the outer wall of the blowing supporting mechanism, and an outer mold and a driving mechanism are fixedly connected to one side of the top of the workbench assembly. The outer dies and the driving mechanism are designed, the first outer die and the second outer die can be opened and closed while the material conveying mechanism is driven to spirally extrude materials, a solid ring assembly and the whole material conveying mechanism are taken down, multiple disassembled and opened components can be cleaned, cleaning dead corners do not exist, and the cleaning efficiency is improved. And the mounting and dismounting steps are simpler and more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of film blowing technology, and in particular relates to a film blowing device for packaging bags. Background Art

[0002] The film blowing process for packaging bags is an important method for producing packaging bag films. First, plastic raw materials such as polyethylene are added to the extruder and heated to melt and plasticize; then, the molten plastic is extruded from the die head to form a tube, and air is introduced into the tube to blow it into a film. During the blowing process, the film is cooled and shaped by a cooling air ring; finally, the cooled film is pulled to the winding equipment by a traction device and wound into a film roll. The film produced by this process has uniform texture and good strength, which can meet the performance requirements of various packaging bags for films, and has high production efficiency. It can mass-produce packaging bag films of different specifications. The film blowing process is of great significance. It can efficiently produce a variety of plastic films with excellent performance, which are widely used in packaging and other fields to meet the diverse needs of people's daily life and industrial production.

[0003] After the existing packaging bags are produced by blown film, a lot of cooled raw materials often remain in the mold, which are often difficult to clean when they remain in some gaps and corners. In addition, since the blown film mold usually has a complex structure, it is difficult for cleaning tools to reach various parts. Therefore, when the blown film mold needs to be cleaned, it often faces more cumbersome steps. At the same time, the existing blown film device will cause uneven blowing and extrusion of materials during the process of blown film production. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the prior art and provide a packaging bag film blowing device.

[0005] The technical solution adopted to solve the above technical problems is: to provide a packaging bag film blowing device, including a workbench assembly, the top center of the workbench assembly is fixedly connected to a blowing support mechanism, the bottom of the blowing support mechanism is fixedly connected to an air guide mechanism, and the outer wall of the blowing support mechanism is rotatably connected to a material transmission mechanism; The outer wall of the blowing support mechanism is provided with a solid ring assembly at the top of the material transmission mechanism, and one side of the top of the workbench assembly is fixedly connected with an outer mold and a driving mechanism; A feeding connection mechanism is installed on one side of the outer mold and the driving mechanism, an integrated circular plate is fixedly connected to the top of the outer mold and the driving mechanism, an opening and closing driving mechanism is installed at both the front and rear ends of one side of the top of the workbench assembly, and an air compressor assembly is installed at the front end of the material transmission mechanism.

[0006] Furthermore, the workbench assembly includes a supporting workbench, a plurality of first fixing bolt assemblies are installed at the top center of the supporting workbench, and the front and rear ends of the top center of the supporting workbench are fixedly connected to the limiting guide rails.

[0007] Through the above technical solution, the blowing support mechanism is installed and fixed by a plurality of first fixing bolt assemblies, and the rotation support of the outer mold and the driving mechanism components is achieved by the limiting guide rail.

[0008] Furthermore, the blowing support mechanism includes a fixed plate fixedly connected to the top of the supporting workbench, the bottom and top of the fixed plate are respectively fixedly connected with a bottom connecting piece and a blowing pipe, the bottom of the inner wall of the blowing pipe is fixedly connected with a uniformly distributed spiral assembly, the outer wall of the uniformly distributed spiral assembly is fixedly connected with an air outlet pipe, the outer wall of the blowing pipe is respectively fixedly connected with a first plane bearing and a second plane bearing, and the tops of the first plane bearing and the second plane bearing are both fixedly connected with a plurality of limit columns.

[0009] Through the above technical solution, the rotational support of the material transmission mechanism is completed through the overall blowing support mechanism, and the air guide mechanism is connected through the bottom connecting piece. When blowing the film, the gas passes through the uniformly distributed spiral component to make the gas more uniform, and finally is output from the top solid ring component to start cooling the extruded packaging bag, and the gas is finally output downward from the air outlet pipe.

[0010] Furthermore, the air guide mechanism includes a mechanism shell fixedly connected to the bottom of the blowing support mechanism, a conical guide sleeve is fixedly connected to the bottom center of the mechanism shell, a connecting pipe is fixedly connected to the outer wall of the mechanism shell, an output pipe is fixedly connected to the bottom of the conical guide sleeve, a plurality of vortex guide plates are fixedly connected between the inner wall of the mechanism shell and the conical guide sleeve, the mechanism shell and the conical guide sleeve are an integrated structure, and the other end of the connecting pipe is fixedly connected to the output end of the air compressor assembly.

[0011] Through the above technical solution, during the film blowing process, the air compressor assembly continuously inputs gas into the interior of the mechanism housing through the connecting pipe, and then guides it through multiple vortex guide plates, and realizes spiral upward output through the conical guide sleeve, which can make the airflow more uniform and stable.

[0012] Furthermore, the material transmission mechanism includes a rotating sleeve body rotatably connected to the outer wall of the air guide mechanism, the bottom of the outer wall of the rotating sleeve body is respectively fixedly connected to a limit plate and a clamping bearing, the bottom of the rotating sleeve body is fixedly connected to an integrated bevel gear ring, and the outer wall of the rotating sleeve body is fixedly connected to an integrated spiral blade.

[0013] Through the above technical scheme, during installation, the overall material transmission mechanism is sleeved on the outer wall of the blowing support mechanism, and is clamped and fixed by multiple limit columns and grooves on the rotating sleeve body, and the rotation support of the material transmission mechanism is realized by the first plane bearing and the second plane bearing. During operation, the molten material is transmitted in through the feed connection mechanism, and driven by the outer mold and the driving mechanism, the integrated bevel gear ring is driven to rotate. The rotating integrated spiral blades will continuously output the molten material upward, and finally squeeze it out through the outer wall of the solid ring assembly and the integrated circular plate. The worker pulls out the extruded material until a complete packaging bag is pulled out.

[0014] Furthermore, the physical ring assembly comprises an extended physical ring, the inner wall of the extended physical ring is fixedly connected with a plurality of limit blocks, and the outer wall of the blowing pipe is provided with a plurality of grooves corresponding to the limit blocks.

[0015] Through the above technical solution, the physical ring assembly is clamped in the groove of the outer wall of the blowing pipe during installation, and then the limit block is rotated to clamp the limit block into the dead corner of the groove to achieve upper and lower limit of the physical ring assembly.

[0016] Furthermore, the outer mold and driving mechanism include a fixed frame installed on one side of the top of the workbench assembly and a rotating support block fixedly connected to the top of the workbench assembly, the top of the fixed frame is fixedly connected with an integrated dual-axis plate, the top of the rotating support block is fixedly connected with two supporting bottom shafts, the first outer mold and the second outer mold are respectively rotatably connected between the two supporting bottom shafts and the integrated dual-axis plate, the outer mold and driving mechanism also include a driving motor fixedly connected between one side of the fixed frame and the top of the workbench assembly, the output end of the driving motor is fixedly connected with a bevel gear, the first outer mold and the second outer mold are fixedly connected with an integrated sealing convex strip on the corresponding sides, the tops of the first outer mold and the second outer mold are fixedly connected with two second fixing bolt assemblies, the other sides of the first outer mold and the second outer mold are installed with two movable bolt assemblies, the first outer mold and the second outer mold are fixedly connected with threaded sleeves on the side close to the feed connection mechanism, and the bottoms of the first outer mold and the second outer mold are respectively fixedly connected with a driving round rod and a guide support block.

[0017] Through the above technical scheme, during the installation and disassembly process, the opening and closing driving mechanism can be used to push and pull the driving rod, thereby driving the first outer mold and the second outer mold to open and close. During the rotation process, the guide support block and the limiting guide rail are used to achieve rotation limitation and support. When merging, the integrated sealing convex strips of the first outer mold and the second outer mold are respectively inserted into each other's grooves to achieve blocking of the gap. After opening the first outer mold and the second outer mold, the material transmission mechanism and the physical ring assembly can be disassembled, thereby achieving rapid cleaning in the subsequent cleaning process. At the same time, the fully opened first outer mold and the second outer mold can be well cleaned, and there is no cleaning dead corner. During the working process, the driving motor drives the bevel gear to rotate, thereby driving the overall material transmission mechanism to rotate, so as to realize the spiral extrusion of the material upward, which is more uniform.

[0018] Furthermore, the integrated sealing ridges of the first outer mold and the second outer mold are fixed in opposite directions, and the first outer mold and the second outer mold are provided with corresponding card grooves on the other side of their integrated sealing ridges, and the first outer mold and the second outer mold are provided with grooves corresponding to the feed connection mechanism on one side.

[0019] Through the above technical solution, the integrated sealing convex strips of the first outer mold and the second outer mold respectively form a seal with the other party's groove, thereby preventing the molten material from being squeezed out from the gap during the spiral rotation and output of the material.

[0020] Furthermore, the feed connection mechanism includes a conical pipe, a positioning block is fixedly connected to the top of the conical pipe, an integrated double-groove plate is fixedly connected to the center of the outer wall of the conical pipe, locking bolts are provided at both the front and rear ends of the conical pipe, push plates are fixedly connected to the outer walls of the two locking bolts, and the other end of the conical pipe is fixedly connected to an integrated connecting flange.

[0021] Through the above technical solution, during installation, the first outer mold and the second outer mold are combined, and the two locking bolts are rotated, thereby driving the two push plates to extrude the integrated double-groove plate, thereby generating thrust on the overall conical pipe, and achieving a tight fit between the first outer mold and the second outer mold through the conical surface at the other end of the conical pipe, thereby preventing the material from being squeezed out of the gap during subsequent material transmission, and then connecting to the injection molding machine through the integrated connecting flange.

[0022] Furthermore, the opening and closing drive mechanism includes an axle seat fixing sleeve rotatably connected to the top of the workbench assembly and a limit fixing sleeve slidably connected to the top of the workbench assembly, a driving hydraulic cylinder is installed between the axle seat fixing sleeve and the limit fixing sleeve, and the output end of the driving hydraulic cylinder is fixedly connected to a sleeve ring.

[0023] Through the above technical solution, two driving hydraulic cylinders are used to control the opening and closing of the first outer mold and the second outer mold respectively, and the shaft seat fixing sleeve is used as the rotating shaft to realize the rotation thereof, and then the limiting is realized by the limiting fixing sleeve and the arc groove on the top of the workbench assembly.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention can realize the opening and closing of the first outer mold and the second outer mold by designing the outer mold and the driving mechanism, while driving the material transmission mechanism to spirally extrude the material. In the subsequent cleaning, the two locking bolts are loosened, and then the two movable bolt assemblies and the integrated circular plate are disassembled respectively. The first outer mold and the second outer mold are pulled respectively by two driving hydraulic cylinders to open the first outer mold and the second outer mold. After removing the solid ring assembly and the overall material transmission mechanism, the cleaning of the disassembled and opened multiple parts can be started. There is no dead corner for cleaning, and the installation and disassembly steps are more convenient. Simple; (2) The present invention designs an air guide mechanism. During the film blowing process, the air compressor assembly continuously inputs gas into the mechanism housing through the connecting pipe, and then guides it through a plurality of vortex guide plates, and realizes spiral upward output through the conical guide sleeve, which can make the airflow more uniform and stable. The designed feed connection mechanism rotates the two locking bolts to drive the two push plates to extrude the integrated double-slot plate, thereby generating thrust on the overall conical pipe, and realizing a close fit between the first outer mold and the second outer mold through the conical surface at the other end of the conical pipe, thereby preventing the material from being squeezed out of the gap during subsequent material transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the structure of the workbench assembly of the present invention; Figure 3 It is a schematic diagram of the structure of the air blowing support mechanism and the air guiding mechanism of the present invention; Figure 4 yes Figure 3 A schematic diagram of a three-dimensional cross-sectional structure; Figure 5 It is a schematic diagram of the three-dimensional structure of the air blowing support mechanism of the present invention; Figure 6 It is a schematic diagram of the cross-sectional structure of the air blowing support mechanism of the present invention; Figure 7 It is a schematic diagram of the structure of the air guide mechanism of the present invention; Figure 8 It is a schematic diagram of a three-dimensional cross-sectional structure of the air guide mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the vortex guide plate of the present invention; Fig.10 It is a structural schematic diagram of the material transmission mechanism of the present invention; Fig.11 It is a schematic diagram of the cross-sectional three-dimensional structure of the material transmission mechanism of the present invention; Fig.12 It is a partial structural schematic diagram of the present invention; Fig.13 yes Fig.12 A schematic diagram of the cross-sectional structure of; Fig.14 It is a schematic diagram of the structure of the physical ring assembly of the present invention; Fig.15 yes Fig.13 A partial enlarged view of the middle A; Fig.16 It is a schematic diagram of the structure of the outer mold and the driving mechanism of the present invention; Fig.17 It is a schematic diagram of the exploded structure of the outer mold and the driving mechanism of the present invention; Fig.18 It is a schematic diagram of the structure of the outer mold and the driving mechanism of the present invention; Fig.19 is a schematic diagram of the first outer mold structure of the present invention; Fig. 20 It is a schematic structural diagram of the feed connection mechanism of the present invention; Fig.21 It is a schematic diagram of the opening structure of the first outer mold and the second outer mold of the present invention; Fig. 22 yes Fig.21 Side structural diagram; Fig.23 It is a schematic diagram of the structure of the opening and closing driving mechanism of the present invention.

[0026] Figure numerals: 1. workbench assembly; 101. support workbench; 102. first fixing bolt assembly; 103. limiting guide rail; 2. blowing support mechanism; 201. fixing plate; 202. bottom connecting piece; 203. blowing pipe; 204. uniformly distributed spiral assembly; 205. outlet pipe; 206. first plane bearing; 207. second plane bearing; 208. limiting column; 3. air guide mechanism; 301. mechanism housing; 302. conical guide sleeve; 303. connecting pipe; 304. output pipe; 305. vortex guide plate; 4. material transmission mechanism; 401. rotating sleeve body; 402. limiting plate; 403. clamping bearing; 404. integrated conical gear ring; 405. integrated spiral blade; 5. solid ring assembly; 51. extended solid ring; 52. limiting block; 6. outer mold and driving mechanism; 601, fixing frame; 602, integrated double-axis plate; 603, driving motor; 604, bevel gear; 605, rotating support block; 606, supporting bottom shaft; 607, first outer mold; 608, second outer mold; 609, integrated sealing convex strip; 610, second fixing bolt assembly; 611, movable bolt assembly; 612, threaded sleeve; 613, driving round rod; 614, guiding support block; 7, feeding connection mechanism; 701, tapered pipe; 702, positioning block; 703, integrated double-slot plate; 704, locking bolt; 705, push plate; 706, integrated connecting flange; 8, integrated circular plate; 9, opening and closing driving mechanism; 901, shaft seat fixing sleeve; 902, limit fixing sleeve; 903, driving hydraulic cylinder; 904, sleeve ring; 10, air compressor assembly. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1-Figure 6As shown, a packaging bag film blowing device of the present embodiment includes a workbench assembly 1, and the workbench assembly 1 includes a supporting workbench 101. A plurality of first fixing bolt assemblies 102 are installed at the top center of the supporting workbench 101. The front and rear ends of the top center of the supporting workbench 101 are fixedly connected to the limiting guide rail 103. The installation and fixation of the blowing support mechanism 2 are realized by the plurality of first fixing bolt assemblies 102. At the same time, the rotation support of the outer mold and the driving mechanism 6 components is realized by the limiting guide rail 103. The top center of the workbench assembly 1 is fixedly connected with the blowing support mechanism 2. The blowing support mechanism 2 includes a fixed plate 201 fixedly connected to the top of the supporting workbench 101. The bottom and top of the fixed plate 201 are respectively fixedly connected with a bottom connecting piece 202 and a blowing The air duct 203, the bottom of the inner wall of the air duct 203 is fixedly connected with a uniformly distributed spiral component 204, the outer wall of the uniformly distributed spiral component 204 is fixedly connected with an air outlet duct 205, the outer wall of the air duct 203 is respectively fixedly connected with a first plane bearing 206 and a second plane bearing 207, and the tops of the first plane bearing 206 and the second plane bearing 207 are fixedly connected with a plurality of limit columns 208. The rotation support of the material transmission mechanism 4 is completed through the overall blowing support mechanism 2, and the air guide mechanism 3 is connected through the bottom connecting piece 202. When blowing the film, the gas passes through the uniformly distributed spiral component 204 to make the gas more uniform, and is finally output from the top physical ring component 5 to start cooling the extruded packaging bag, and the gas is finally output downward from the air outlet duct 205.

[0029] like Figure 1-Figure 9 As shown, the bottom of the blowing support mechanism 2 is fixedly connected to an air guide mechanism 3, and the air guide mechanism 3 includes a mechanism shell 301 fixedly connected to the bottom of the blowing support mechanism 2, a conical guide sleeve 302 is fixedly connected to the bottom center of the mechanism shell 301, a connecting pipe 303 is fixedly connected to the outer wall of the mechanism shell 301, and an output pipe 304 is fixedly connected to the bottom of the conical guide sleeve 302. A plurality of vortex guide plates 305 are fixedly connected between the inner wall of the mechanism shell 301 and the conical guide sleeve 302. The mechanism shell 301 and the conical guide sleeve 302 are an integrated structure, and the other end of the connecting pipe 303 is fixedly connected to the output end of the air compressor assembly 10. During the film blowing process, the air compressor assembly 10 continuously inputs gas into the mechanism shell 301 through the connecting pipe 303, and then guides it through the plurality of vortex guide plates 305, and realizes spiral upward output through the conical guide sleeve 302, which can make the airflow more uniform and stable.

[0030] like Figure 1-Figure 14As shown, the outer wall of the blowing support mechanism 2 is rotatably connected to the material transmission mechanism 4, and the material transmission mechanism 4 includes a rotating sleeve body 401 rotatably connected to the outer wall of the air guide mechanism 3, and the outer wall bottom of the rotating sleeve body 401 is respectively fixedly connected to the limit plate 402 and the clamping bearing 403, and the bottom of the rotating sleeve body 401 is fixedly connected to the integrated bevel gear ring 404, and the outer wall of the rotating sleeve body 401 is fixedly connected to the integrated spiral blade 405. When installing, the whole material transmission mechanism 4 is sleeved on the outer wall of the blowing support mechanism 2, and is clamped and fixed by multiple limit columns 208 and the grooves on the rotating sleeve body 401, and the rotation support of the material transmission mechanism 4 is realized by the first plane bearing 206 and the second plane bearing 207. When working, the molten material passes through the feed connection mechanism 7 The material is transmitted in and driven by the outer mold and the driving mechanism 6 to drive the integrated bevel gear ring 404 to rotate. The rotating integrated spiral blades 405 will continuously output the molten material upward, and finally extrude it through the outer wall of the solid ring assembly 5 and the integrated circular plate 8. The worker pulls out the extruded material until a complete packaging bag is pulled out. The outer wall of the blowing support mechanism 2 is equipped with a solid ring assembly 5 on the top of the material transmission mechanism 4. The solid ring assembly 5 includes an extended solid ring 51. The inner wall of the extended solid ring 51 is fixedly connected with a plurality of limit blocks 52. The outer wall of the blowing pipe 203 is provided with a plurality of grooves corresponding to the limit blocks 52. During installation, the solid ring assembly 5 is clamped in the groove of the outer wall of the blowing pipe 203, and then the limit block 52 is rotated to clamp it into the dead corner of the groove, so as to realize the upper and lower limit of the solid ring assembly 5.

[0031] like Figure 1-Figure 19As shown, one side of the top of the workbench assembly 1 is fixedly connected with an external mold and a driving mechanism 6, and the external mold and the driving mechanism 6 include a fixed frame 601 installed on one side of the top of the workbench assembly 1 and a rotating support block 605 fixedly connected to the top of the workbench assembly 1, the top of the fixed frame 601 is fixedly connected with an integrated dual-axis plate 602, the top of the rotating support block 605 is fixedly connected with two supporting bottom shafts 606, and the first external mold 607 and the second external mold 608 are rotatably connected between the two supporting bottom shafts 606 and the integrated dual-axis plate 602, respectively, and the external mold and the driving mechanism 6 also include a driving motor 603 fixedly connected between one side of the fixed frame 601 and the top of the workbench assembly 1, and the output end of the driving motor 603 is The first outer mold 607 and the second outer mold 608 are fixedly connected with a bevel gear 604, and the first outer mold 607 and the second outer mold 608 are fixedly connected with an integrated sealing convex strip 609 on the corresponding side. The tops of the first outer mold 607 and the second outer mold 608 are fixedly connected with two second fixing bolt assemblies 610, and the other sides of the first outer mold 607 and the second outer mold 608 are installed with two movable bolt assemblies 611. The first outer mold 607 and the second outer mold 608 are fixedly connected with a threaded sleeve 612 on the side close to the feed connection mechanism 7, and the bottoms of the first outer mold 607 and the second outer mold 608 are respectively fixedly connected with a driving rod 613 and a guide support block 614. During the installation and disassembly process, the opening and closing of the driving mechanism 9 can be used to The push-pull driving rod 613 is realized, and then the first outer mold 607 and the second outer mold 608 are driven to open and close. During the rotation process, the rotation limitation and support are realized by the guide support block 614 and the limiting guide rail 103. When merging, the integrated sealing convex strips 609 of the first outer mold 607 and the second outer mold 608 are respectively inserted into each other's notches to seal the gap. After the first outer mold 607 and the second outer mold 608 are opened, the material transmission mechanism 4 and the physical ring assembly 5 can be disassembled, and then rapid cleaning can be achieved in the subsequent cleaning process. At the same time, the fully opened first outer mold 607 and the second outer mold 608 can be well cleaned without cleaning dead corners. , the driving motor 603 drives the bevel gear 604 to rotate, and then drives the overall material transmission mechanism 4 to rotate, so as to realize the upward spiral extrusion of the material, which is more uniform. The integrated sealing ridges 609 of the first outer mold 607 and the second outer mold 608 are fixed in opposite directions, and the first outer mold 607 and the second outer mold 608 are provided with corresponding card grooves on the other side of their integrated sealing ridges 609. One side of the first outer mold 607 and the second outer mold 608 is provided with grooves corresponding to the feed connection mechanism 7. The integrated sealing ridges 609 of the first outer mold 607 and the second outer mold 608 respectively form seals with each other's card grooves to prevent the molten material from being squeezed out of the gap during the spiral rotation and output of the material.

[0032] like Figure 1-Figure 23As shown, a feed connection mechanism 7 is installed on one side of the outer mold and driving mechanism 6, and the feed connection mechanism 7 includes a tapered pipe 701, a positioning block 702 is fixedly connected to the top of the tapered pipe 701, an integrated double-groove plate 703 is fixedly connected to the center of the outer wall of the tapered pipe 701, locking bolts 704 are provided at both the front and rear ends of the tapered pipe 701, and the outer walls of the two locking bolts 704 are fixedly connected to push plates 705, and the other end of the tapered pipe 701 is fixedly connected to an integrated connection flange 706. During installation, the first outer mold 607 and the second outer mold 608 are combined, and the two locking bolts 704 are rotated, thereby driving the two push plates 705 to squeeze the integrated double-groove plate 703, so as to generate thrust on the overall tapered pipe 701, and realize the first outer mold 607 and the second outer mold 608 through the conical surface of the other end of the tapered pipe 701. The close fit between them can prevent the material from being squeezed out from the gap during the subsequent material transmission, and then the injection molding machine can be connected through the integrated connecting flange 706. The top of the outer mold and the driving mechanism 6 is fixedly connected with an integrated circular plate 8. The front and rear ends of one side of the top of the workbench assembly 1 are installed with an opening and closing driving mechanism 9. The opening and closing driving mechanism 9 includes an axle seat fixing sleeve 901 rotatably connected to the top of the workbench assembly 1 and a limit fixing sleeve 902 slidably connected to the top of the workbench assembly 1. A driving hydraulic cylinder 903 is installed between the axle seat fixing sleeve 901 and the limit fixing sleeve 902. The output end of the driving hydraulic cylinder 903 is fixedly connected with a sleeve ring 904. The opening and closing of the first outer mold 607 and the second outer mold 608 are respectively controlled by two driving hydraulic cylinders 903, and the axle seat fixing sleeve 901 is used as the rotating shaft to realize the rotation thereof, and then the limit is realized by the limit fixing sleeve 902 and the arc-shaped groove on the top of the workbench assembly 1. The front end of the material transmission mechanism 4 is installed with an air compressor assembly 10.

[0033] The working principle of this embodiment is as follows. When in use, the overall material transmission mechanism 4 is sleeved on the outer wall of the blowing support mechanism 2, and is fixed by a plurality of limit columns 208 and the grooves on the rotating sleeve body 401, and the rotation support of the material transmission mechanism 4 is realized by the first plane bearing 206 and the second plane bearing 207, and then the physical ring component 5 is inserted into the top of the outer wall of the blowing pipe 203, and the limit installation is realized by the groove of the outer wall of the blowing pipe 203 and the limit block 52. After the physical ring component 5 is inserted, it is rotated to insert the limit block 52 into the dead corner of the groove. The physical ring assembly 5 is limited in upper and lower positions, and then the two driving hydraulic cylinders 903 push the corresponding sleeve ring 904, and then the corresponding first outer mold 607 and the second outer mold 608 are pushed to rotate through the two driving round rods 613, until the first outer mold 607 and the second outer mold 608 are rotated and merged between the integrated dual-axis plate 602 and the two supporting bottom shafts 606, and fixed and locked by two movable bolt assemblies 611. During the merging process, the limit plate 402 is clamped and sealed through the groove, and the clamping bearing 403 is squeezed to achieve further fixation; When merging, the integrated sealing convex strips 609 of the first outer mold 607 and the second outer mold 608 are respectively inserted into the grooves of each other to achieve the blocking of the gap, and then the integrated circular plate 8 is installed on the top of the first outer mold 607 and the second outer mold 608, and then the integrated circular plate 8 is fixed by a plurality of second fixing bolt assemblies 610. When extruding the material, the complete integrated circular plate 8 will not affect the molten material due to the gap. Finally, the two locking bolts 704 are rotated to drive the two push plates 705 to squeeze the integrated double-grooved plate 703, so as to achieve the thrust on the overall tapered pipe 701, and the tapered surface at the other end of the tapered pipe 701 is closely fitted with the first outer mold 607 and the second outer mold 608, and then the injection molding machine is connected through the integrated connecting flange 706; During operation, the molten material enters the mold cavity formed by the first outer mold 607, the second outer mold 608 and the rotating sleeve body 401 through the conical pipe 701, and at the same time, the driving motor 603 drives the bevel gear 604 to rotate, thereby driving the integrated bevel gear ring 404 meshing therewith, so as to drive the overall material transmission mechanism 4 to rotate. The rotating integrated spiral blade 405 will continuously output the molten material upward, and finally squeeze it out between the outer wall of the solid ring component 5 and the integrated circular plate 8. The worker pulls out the extruded material until a complete packaging bag is pulled out, and the packaging is The bag is tied to the traction rope and rolled up by the extrusion roller and other components. During the film blowing process, the air compressor assembly 10 continuously inputs gas into the mechanism housing 301 through the connecting pipe 303, and then guides it through multiple vortex guide plates 305, and finally realizes spiral upward output through the conical guide sleeve 302. The gas is made more uniform by the uniformly distributed spiral assembly 204, and finally output from the top physical ring assembly 5 to start cooling the extruded packaging bag. The gas is finally output downward from the outlet pipe 205 and finally output from the output pipe 304; In the subsequent cleaning, the two locking bolts 704 are loosened, and then the two movable bolt assemblies 611 and the integrated circular plate 8 are removed respectively, and the first outer mold 607 and the second outer mold 608 are pulled respectively by two driving hydraulic cylinders 903 to open the first outer mold 607 and the second outer mold 608, and the physical ring assembly 5 and the overall material transfer mechanism 4 are removed, and then the cleaning of the disassembled and opened multiple components can be started.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A packaging bag film blowing device, comprising a workbench assembly (1), characterized in that: The top center of the workbench assembly (1) is fixedly connected to a blowing support mechanism (2), the bottom of the blowing support mechanism (2) is fixedly connected to an air guide mechanism (3), and the outer wall of the blowing support mechanism (2) is rotatably connected to a material conveying mechanism (4); A solid ring assembly (5) is installed on the outer wall of the blowing support mechanism (2) at the top of the material transfer mechanism (4); an outer mold and a driving mechanism (6) are fixedly connected to one side of the top of the workbench assembly (1); the outer mold and the driving mechanism (6) comprise a fixed frame (601) installed on one side of the top of the workbench assembly (1) and a rotating support block (605) fixedly connected to the top of the workbench assembly (1); an integrated dual-axis plate (602) is fixedly connected to the top of the fixed frame (601); two supporting bottom shafts (606) are fixedly connected to the top of the rotating support block (605); a first outer mold (607) and a second outer mold (608) are rotatably connected between the two supporting bottom shafts (606) and the integrated dual-axis plate (602); A feeding connection mechanism (7) is installed on one side of the outer mold and driving mechanism (6), an integrated circular plate (8) is fixedly connected to the top of the outer mold and driving mechanism (6), an opening and closing driving mechanism (9) is installed at both the front and rear ends of one side of the top of the workbench assembly (1), and an air compressor assembly (10) is installed at the front end of the material transmission mechanism (4).

2. The packaging bag film blowing device according to claim 1, characterized in that: The workbench assembly (1) comprises a supporting workbench (101), a plurality of first fixing bolt assemblies (102) being installed at the top centre of the supporting workbench (101), and both front and rear ends of the top centre of the supporting workbench (101) being fixedly connected to limiting guide rails (103).

3. The packaging bag film blowing device according to claim 1, characterized in that: The air blowing support mechanism (2) comprises a fixed plate (201) fixedly connected to the top of the supporting workbench (101); the bottom and top of the fixed plate (201) are respectively fixedly connected to a bottom connecting piece (202) and an air blowing pipe (203); the bottom of the inner wall of the air blowing pipe (203) is fixedly connected to a uniformly distributed spiral assembly (204); the outer wall of the uniformly distributed spiral assembly (204) is fixedly connected to an air outlet pipe (205); the outer wall of the air blowing pipe (203) is respectively fixedly connected to a first plane bearing (206) and a second plane bearing (207); and the tops of the first plane bearing (206) and the second plane bearing (207) are both fixedly connected to a plurality of limit posts (208).

4. The packaging bag film blowing device according to claim 1, characterized in that: The air guide mechanism (3) comprises a mechanism housing (301) fixedly connected to the bottom of the blowing support mechanism (2); a conical guide sleeve (302) is fixedly connected to the center of the bottom of the mechanism housing (301); a connecting pipe (303) is fixedly connected to the outer wall of the mechanism housing (301); an output pipe (304) is fixedly connected to the bottom of the conical guide sleeve (302); a plurality of vortex guide plates (305) are fixedly connected between the inner wall of the mechanism housing (301) and the conical guide sleeve (302); the mechanism housing (301) and the conical guide sleeve (302) are an integrated structure, and the other end of the connecting pipe (303) is fixedly connected to the output end of the air compressor assembly (10).

5. The packaging bag film blowing device according to claim 1, characterized in that: The material transmission mechanism (4) comprises a rotating sleeve body (401) rotatably connected to the outer wall of the air guide mechanism (3); the bottom of the outer wall of the rotating sleeve body (401) is respectively fixedly connected to a limit plate (402) and a clamping bearing (403); the bottom of the rotating sleeve body (401) is fixedly connected to an integrated bevel gear ring (404); and the outer wall of the rotating sleeve body (401) is fixedly connected to an integrated spiral blade (405).

6. The packaging bag film blowing device according to claim 3, characterized in that: The physical ring assembly (5) comprises an extended physical ring (51), the inner wall of the extended physical ring (51) is fixedly connected to a plurality of limit blocks (52), and the outer wall of the blowing pipe (203) is provided with a plurality of grooves corresponding to the limit blocks (52).

7. The packaging bag film blowing device according to claim 1, characterized in that: The outer mold and driving mechanism (6) further comprises a driving motor (603) fixedly connected between one side of the fixing frame (601) and the top of the workbench assembly (1); the output end of the driving motor (603) is fixedly connected to a bevel gear (604); the first outer mold (607) and the second outer mold (608) are fixedly connected to an integral sealing convex strip (609) on one side corresponding to each other; the tops of the first outer mold (607) and the second outer mold (608) are fixedly connected to two second fixing bolt assemblies (610); the other sides of the first outer mold (607) and the second outer mold (608) are installed with two movable bolt assemblies (611); the first outer mold (607) and the second outer mold (608) are fixedly connected to a threaded sleeve (612) on one side close to the feeding connection mechanism (7); and the bottoms of the first outer mold (607) and the second outer mold (608) are respectively fixedly connected to a driving round rod (613) and a guide support block (614).

8. The packaging bag film blowing device according to claim 7, characterized in that: The integrated sealing convex strips (609) of the first outer mold (607) and the second outer mold (608) are fixed in opposite directions, and the first outer mold (607) and the second outer mold (608) are provided with corresponding slots on the other side of their integrated sealing convex strips (609), and one side of the first outer mold (607) and the second outer mold (608) are provided with grooves corresponding to the feed connection mechanism (7).

9. The packaging bag film blowing device according to claim 1, characterized in that: The feed connection mechanism (7) comprises a tapered pipe (701), a positioning block (702) is fixedly connected to the top of the tapered pipe (701), an integrated double-grooved plate (703) is fixedly connected to the center of the outer wall of the tapered pipe (701), locking bolts (704) are provided at both the front and rear ends of the tapered pipe (701), the outer walls of the two locking bolts (704) are fixedly connected to push plates (705), and the other end of the tapered pipe (701) is fixedly connected to an integrated connection flange (706).

10. The packaging bag film blowing device according to claim 1, characterized in that: The opening and closing drive mechanism (9) comprises an axle seat fixing sleeve (901) rotatably connected to the top of the workbench assembly (1) and a limit fixing sleeve (902) slidably connected to the top of the workbench assembly (1), a driving hydraulic cylinder (903) is installed between the axle seat fixing sleeve (901) and the limit fixing sleeve (902), and an output end of the driving hydraulic cylinder (903) is fixedly connected to a sleeve ring (904).

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