CN215791875U

CN215791875U - Continuous plastic uptake molding high-barrier water bag production device

Info

Publication number: CN215791875U
Application number: CN202120571977.4U
Authority: CN
Inventors: 谢鹏程; 宋乐; 丁玉梅; 杨卫民
Original assignee: Beijing University of Chemical Technology
Current assignee: Beijing University of Chemical Technology
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-02-11
Anticipated expiration: 2031-03-19

Abstract

The utility model discloses a continuous plastic-suction forming high-barrier water sac production device, which mainly comprises an extrusion system, a cache system, a bidirectional plastic-suction system and a remainder rolling system, wherein two extruders and corresponding laminated casting dies are used firstly, two high-barrier plastic films which are arranged in parallel up and down are extruded simultaneously, the two plastic films are driven by a plurality of traction rollers, the upper plastic film in the two plastic films obliquely passes through the cache device from the left upper part to the right lower part, the lower film passes through the cache device in an L shape after going down and then going right, so that the two films are spaced in height and can sag for a certain length by the gravity of themselves to realize material cache, and then a pair of plastic-suction dies which can be opened and closed up and down under the driving of a die closing mechanism are used for respectively carrying out plastic-suction forming to form two half cavities of the water sac; after the plastic suction is finished, the formed water bag takes plastic film excess as a carrier, the plastic film excess is conveyed backwards, the conveying requirement of products produced continuously is conveniently met, and finally the plastic film after the water bag is taken down is uniformly rolled.

Description

Continuous plastic uptake molding high-barrier water bag production device

Technical Field

The utility model relates to a device and a method for producing a continuous plastic-sucking molding high-barrier water bag, belonging to the field of plastic processing and molding.

Background

The middle-size and small-size plastic water bags with the capacity of 1-20L have stable and wide requirements in various fields such as chemical industry, biomedical treatment, rescue and disaster relief, at present, the main mode for producing the containers is an extrusion blow molding mode, is limited by a forming principle, and the blow molding method is difficult to completely realize the automation and the continuity of production, so that the production efficiency and the turnover flexibility of enterprises are greatly influenced; on the other hand, limited by the prior art, such water bag products are focused on low-end products, and the drop resistance, barrier property and flexibility are difficult to break through.

From the viewpoint of improving the performance of the water bag, the best mode is to organically combine various resins with different functionalities by a laminating method to exert the excellent characteristics of the various resins so as to improve the overall performance; from the viewpoint of improving the production efficiency, it is the best way to complete the whole production process by mechanical automation. In view of the above two aspects, the existing blow molding method is difficult to realize, because the lamination is mainly used for producing the plane film at present, and the structure of the blown annular film has difficulty in the arrangement of the lamination equipment; meanwhile, in terms of structure, the blow molding machine inevitably needs a complex manipulator and a conveying structure to realize continuous operation of the device, so that the operation cost is high, and the efficiency improvement is not obvious. Thus, the existing blow molding methods have inherent deficiencies in solving such problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a device and a method for producing a continuous plastic-suction forming high-barrier water pocket, which are mainly based on a bidirectional plastic suction principle. The method comprises the following steps of firstly, simultaneously extruding two high-barrier laminated plastic films which are arranged in parallel up and down by using two extruders and corresponding laminated casting dies, then respectively forming two half cavities of a water bag on the upper plastic film and the lower plastic film by using a pair of plastic suction dies which can be opened and closed up and down under the driving of a die assembly mechanism, and finally pressing the two half cavities to form a complete water bag; in order to solve the problem of temporary storage of materials before intermittent plastic suction after continuous extrusion, a special buffer device is adopted, the upper plastic film in the two plastic films obliquely passes through the buffer device from the left top to the right bottom under the driving of a plurality of traction rollers, and the lower film passes through the buffer device in an L shape after going down and then going right, so that the two films are spaced at intervals in height and can droop for a certain length by depending on the gravity of the films, and the purpose of buffer storage of the materials is realized; in addition, after the plastic suction is finished, the formed water bag takes plastic film excess materials as carriers, the plastic film excess materials are conveyed backwards, the conveying requirements of products produced continuously are conveniently met, and finally the plastic film after the water bag is taken down is uniformly rolled up for recycling.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a continuous plastic uptake shaping high separation nature water pocket apparatus for producing, mainly includes: the device comprises an extrusion system, a cache system, a bidirectional plastic uptake system and a residual material rolling system. Wherein: the extrusion system is positioned at the leftmost end of the whole set of equipment and mainly comprises: two extruders, two sets of extruder bases, a casting die and a casting die head support. The two extruders can be in the same specification or different specifications, and the extruders are placed on the extruder base; the extruder base is a universal base and can be formed by welding metal frames or directly cast, and the two bases have the same height and are placed on the ground; the casting die is a double-die-head laminated die, the left side of the casting die comprises two material inlets which are respectively connected with two extruders, the right side of the casting die is provided with two casting die orifices which are arranged up and down, the two die orifices face to the right side, a laminated runner and a distribution runner are arranged in the casting die, materials extruded by the two extruders can be laminated and are averagely distributed to the two casting die orifices for extrusion; the casting die head support is a metal door-shaped frame, and the casting die is hung on the casting die head support to be fixed. The buffer system is arranged on the right side of the extrusion system and is close to the extrusion system, and the buffer system mainly comprises a buffer system frame, a roller support, an upper left roller set, a middle left roller set, a lower left roller set, an upper right roller set, a lower right roller set, an upper roller row, a lower roller row, an upper extrusion film and a lower extrusion film. The cache system frame is a supporting frame and a shell of each component of the cache system, is placed on the ground and consists of a cuboid metal frame formed by welding metal supports and a skin coated outside the frame; the roller support is fixed inside the frame of the cache system and is a cuboid frame assembled by aluminum profiles; the left upper roller set, the left middle roller set, the left lower roller set, the right upper roller set and the right lower roller set are all of the same structure and are composed of rollers and two roller bases, wherein the rollers are long-strip cylinders, two ends of each roller extend out of small shafts, a driving motor is arranged in each roller and can rotate around the small shafts independently, the two rollers extend in the front-back direction and are vertically arranged up and down, and gaps with the same thickness as that of an upper film and a lower film are formed between the two rollers; the double-roller seat is a cuboid metal block, the upper part and the lower part of the double-roller seat are provided with holes, the double-roller seat is provided with a pair of front and back parts, shafts at two ends of two rollers are inserted into the holes of the double-roller seat, and the double-roller seat is fixed on the left side surface and the right side surface of the roller bracket at the following positions and heights through the pair of double-roller seats: the upper left roller group is fixed above the left side of the roller bracket and is flush with a casting die orifice above the casting die; the left middle roller group is fixed right below the left upper roller group and is flush with a casting die orifice below the casting die; the left lower roller set is fixed below the left side of the roller bracket and is spaced from the left middle roller set by a certain distance; the upper right roller set is fixed at the position which is slightly higher than the lower left roller set below the right side of the roller bracket; the right lower roller set is fixed at the position below the right side of the roller bracket, and the height of the right lower roller set is flush with the left lower roller set; the upper extruded film and the lower extruded film are respectively polymer films extruded from an upper casting die orifice and a lower casting die orifice of the casting die, and the upper extruded film and the lower extruded film are also part of the plastic film, wherein the upper extruded film is extruded from the upper casting die orifice of the casting die and passes through a gap between two rollers of the roller set rightwards and passes through a gap between the two rollers of the roller set rightwards and downwards, and then enters the bidirectional plastic uptake system rightwards; extruding a lower film from a lower casting die orifice of the casting die, passing through a gap between two rollers of the roller set rightwards, passing through a gap between the two rollers of the roller set downwards, passing through a gap between the two rollers of the roller set rightwards, and entering a bidirectional plastic uptake system rightwards; the upper roller row and the lower roller row are respectively composed of 5-10 rollers which are horizontally arranged in the transverse direction and corresponding supports, and the upper roller row is positioned between an upper extruded film and a lower extruded film in the roller support and is separated from the upper extruded film by a larger distance; the lower roller row is positioned below the bottom extrusion lower film in the roller bracket and is spaced from the extrusion lower film by a larger distance; the bidirectional plastic uptake system is positioned on the right side of the cache system and is adjacent to the cache system, and mainly comprises an upper chain rack, a lower chain rack, an upper plastic uptake mold, a lower plastic uptake mold, an upper plastic uptake template, a lower plastic uptake template, a guide pillar, an upper die assembly mechanism, a lower die assembly mechanism and a plastic uptake device shell. The upper extrusion film and the lower extrusion film extend rightwards from the cache system and then extend rightwards in parallel; the upper chain rack and the lower chain rack are chain type conveying devices conventionally used by a plastic uptake machine, and mainly comprise a pair of chains with hook teeth and corresponding transmission mechanisms, the upper chain rack and the lower chain rack are respectively supported at two sides of an upper extruded film and a lower extruded film, the edges of the upper extruded film and the lower extruded film are hooked by the hook teeth, the conveying directions are horizontal from left to right, the upper extruded film and the lower extruded film are respectively driven by the upper chain rack and the lower chain rack, the conveying speed is adjustable, and the upper chain rack and the lower chain rack are arranged up and down and are adjustable at intervals of 10cm-20 cm; the upper plastic suction mould and the lower plastic suction mould are a set of plastic suction moulds which are symmetrical up and down and have the same size, the mould cavities are connected with a vacuum system, the mould cavities of the upper plastic suction mould and the lower plastic suction mould respectively correspond to the upper half cavity and the lower half cavity of the water pocket, the mould cavity and the matched mould surface of the upper plastic suction mould face downwards, the mould cavity and the matched mould surface of the lower plastic suction mould face upwards and are respectively positioned right above the extruded upper film and right below the extruded lower film, and the center positions of the upper chain frame and the lower chain frame are accurately aligned in the horizontal direction, an upper plastic suction mould and a lower plastic suction mould are respectively fixed on an upper plastic suction template and a lower plastic suction template, the upper plastic suction template and the lower plastic suction template are both square templates, four corners of each template are provided with guide holes, the cross section of each template is square, four holes of each upper plastic suction template and the corresponding lower plastic suction template are sleeved on four guide posts which are vertically arranged, the upper plastic suction template and the lower plastic suction template can slide up and down and are driven by the upper die closing mechanism and the lower die closing mechanism to move up and down respectively; the upper mold closing mechanism and the lower mold closing mechanism are driven by a toggle rod type mold closing mechanism which is conventional to an injection molding machine and a molding press and are respectively positioned above the upper plastic suction template and below the lower plastic suction mold plate to respectively drive the upper plastic suction template and the lower plastic suction mold plate and the corresponding upper plastic suction mold and lower plastic suction mold to move up and down to complete opening and closing; the shell of the plastic uptake device is a support frame and a shell of each component of the bidirectional plastic uptake system and is integrated with the frame of the cache system; the clout rolling system is placed in two-way blister system right side, mainly includes: the device comprises a rolling system frame, a clamping roller, a rolling roller and a laminating film. The rolling system frame is a metal frame assembled by aluminum profiles, the lower part of the rolling system frame can be covered by a metal skin, the rolling system frame is rectangular as a whole and has a larger length extending in the left-to-right direction, and the rightmost side of the rolling system frame is provided with a frame structure extending upwards to a certain height; the rolling roller is a cylinder with a larger diameter, shafts and corresponding bearing seats are arranged on two sides of the cylinder, a motor is arranged in the rolling roller and can rotate spontaneously, and the rolling roller is fixed at the top of a frame structure extending out of the rightmost side of a rolling system frame; the clamping roller consists of a triangle wheel seat and a roller wheel: the triangular wheel seat is an equilateral triangle metal plate, and three corners of the triangular wheel seat are provided with holes; the roller is a round wheel made of polytetrafluoroethylene, and a shaft extends out of one side of the roller; the clamping rollers are provided with 3 rollers which are respectively inserted into 3 holes of the triangular wheel seat, and a certain gap is reserved between the rollers and is equal to the thickness of the laminating film; the clamping rollers are symmetrically arranged in pairs, are welded and fixed on the frames on the front surface and the rear surface of the rolling system frame, are provided with wheels facing inwards, are clamped at the front edge and the rear edge of the laminating film in tandem, and are clamped by inserting the front edge and the rear edge of the laminating film into the gap of the roller of the clamping roller; the laminating film is a part of a plastic film and is a film which is laminated together after the upper film and the lower film are extruded and subjected to plastic uptake, a water sac structure formed by plastic uptake is arranged in the middle of the film, the laminating film continues to extend rightwards after stretching out rightwards from the bidirectional plastic uptake system to the rightmost end of the frame of the rolling system and then extends upwards, and the rolling roller is rolled in the top of the frame structure on the rightmost side of the frame of the rolling system.

The utility model provides a continuous plastic-suction forming high-barrier water sac production device, wherein an upper plastic suction mould and a lower plastic suction mould of a bidirectional plastic suction system are provided with temperature control systems, so that an extruded upper film and an extruded lower film are convenient to form by plastic suction, the edges of the extruded upper film and the extruded lower film are firmly attached, and the edge sealing property of the water sac is better.

The utility model provides a continuous plastic-suction forming high-barrier water pocket production device, wherein an upper extrusion film and a lower extrusion film still have certain temperature when entering an upper plastic-suction mold and a lower plastic-suction mold of a bidirectional plastic-suction system, the films are in a certain plastic deformation state, the films are easy to form during plastic suction and edge pressing, and the edges are tightly attached into a whole.

The utility model provides a continuous plastic uptake molding high-barrier water sac production device, wherein an extrusion system of the continuous plastic uptake molding high-barrier water sac production device only comprises an extruder, and a casting mold adopts a non-laminated mold and is used for producing a single-layer water sac.

The utility model provides a continuous plastic uptake molding high-barrier water pocket production device, and a rest material rolling system can be set into a conveying structure according to process requirements, and a plurality of clamping rollers guide an extruded plastic film as a conveying medium to convey a molded water pocket to a plurality of process sections.

The utility model provides a production method of a continuous plastic-suction forming high-barrier water pocket production device, wherein two die orifices of a casting die of an extrusion system continuously extrude two leftmost parts of a plastic film: extruding an upper film and extruding a lower film; and two rollers in the upper left roller set, the middle left roller set and the lower left roller set continuously rotate anticlockwise on the upper side and clockwise on the lower side, and continuously pull the extruded upper film and the extruded lower film into spaces on the right sides of the rollers. The first step of production is feeding, wherein the upper right roller set and the lower right roller set rotate at the same speed as the other three roller sets, the upper chain rack and the lower chain rack are conveyed rightwards at the same linear speed, and the extruded upper film and the extruded lower film are conveyed to the position between an upper plastic suction mould and a lower plastic suction mould in a bidirectional plastic suction system; the second step of production is plastic uptake, when the extruded upper film and the extruded lower film enter the position between the upper plastic uptake mold and the lower plastic uptake mold, the right upper roller set, the right lower roller set, the upper chain rack and the lower chain rack stop rotating and conveying, and the upper plastic uptake mold and the lower plastic uptake mold are driven by the corresponding mold closing mechanism and the corresponding mold plate respectively to move downwards and upwards, so that the mold closing surface of the upper plastic uptake mold is just attached to the mold closing surface of the extruded upper film and the mold closing surface of the lower plastic uptake mold is just attached to the extruded lower film, and the upper half cavity and the lower half cavity of the water outlet bag are respectively plastic-absorbed on the extruded upper film and the extruded lower film under the drive of a vacuum system; the third step of production is pressing, the upper plastic suction template and the lower plastic suction template move downwards and upwards to be completely attached under the driving of the corresponding die assembly mechanism respectively, and a certain pressure is applied to press the upper half cavity and the lower half cavity of the water bag together; the fourth step of production is demoulding, wherein the upper plastic suction mould and the lower plastic suction mould move upwards and downwards under the driving of the corresponding mould closing mechanism and the corresponding template respectively, and leave the plastic film, so that the water sac formed by plastic suction is demoulded; in the three steps of plastic suction, pressing and demolding, an upper extrusion film and a lower extrusion film which are continuously extruded by an extrusion system are not conveyed to the right side, but respectively hung in a space between a left upper roller set and a right upper roller set and a space between a left lower roller set and a right lower roller set to play a role of caching materials; after the steps are completed, the first step is repeated, and a new molding cycle is started. When the extrusion system, the cache system and the bidirectional plastic uptake system repeat the above cycle process, the rolling rollers in the excess material rolling system continuously rotate to continuously roll the extruded plastic film, the formed water sac is conveyed to the rolling rollers at the rear end in the excess material rolling system along with the plastic film, and is taken down by a manual or an additional mechanical arm gripping device at the tail end of the rolling system.

The utility model provides a continuous plastic uptake molding high-barrier water sac production device, wherein a high-toughness material and a high-barrier material can be respectively added into two extruders of an extrusion system to prepare a water sac with both anti-falling property and high-barrier property.

The utility model provides a continuous plastic uptake molding high-barrier water bag production device, wherein food-grade materials and high-barrier materials can be respectively added into two extruders of an extrusion system to prepare a food packaging water bag with the inner surface capable of contacting food and the middle layer having high-barrier property.

The utility model relates to a continuous plastic-uptake forming high-barrier water bag production device, which has the following advantages: 1. compared with the traditional blow molding method, the continuous plastic uptake molding high-barrier water bag production device can realize full-automatic continuous production due to the arrangement of the cache system, reduce the labor cost and greatly improve the production efficiency.

2. The method can conveniently realize the preparation of the plastic uptake water pocket by the single-layer film or the laminated film, the plastic uptake mold can be conveniently replaced, and the same production line can meet the requirements of various products.

3. The plastic film is used as a product conveying carrier, so that the subsequent production processes of flat cover installation, folding and the like can be planned very conveniently, and meanwhile, the method has extremely low cost and high reliability.

Drawings

FIG. 1 is a schematic view of the whole of a continuous blister forming high barrier water pocket production device of the present invention;

FIG. 2 is a schematic view of an extrusion system of a continuous blister forming high barrier water pocket production device of the present invention;

FIG. 3 is a schematic view of a buffer memory system of a continuous blister forming high barrier water pocket production device of the present invention;

FIG. 4 is a schematic view of a roller set of the continuous blister forming high barrier water pocket production device of the present invention;

FIG. 5 is a schematic view of a two-way plastic uptake system of the continuous plastic uptake forming high barrier water pocket production device of the present invention;

FIG. 6 is a schematic view of a remainder rolling system of the continuous blister forming high barrier water pocket production device of the present invention;

FIG. 7 is a schematic view of a holding roller of the continuous blister forming high barrier water pocket production apparatus of the present invention;

FIG. 8 is a schematic diagram of the feeding steps of a continuous blister forming high barrier water bladder production process;

FIG. 9 is a schematic view of the blister step of a continuous blister forming high barrier water bladder production method;

FIG. 10 is a schematic view of the pressing step of a continuous blister forming high barrier water bladder production method;

FIG. 11 is a schematic diagram of a demolding step of a continuous blister forming high-barrier water pocket production method.

In the figure: 1-extrusion system, 2-buffer system, 3-bidirectional plastic suction system, 4-excess material rolling system, 5-plastic film, 11-extruder, 12-extruder base, 13-casting die, 14-casting die head bracket, 21-buffer system frame, 22-roller bracket, 23-upper left roller group, 24-middle left roller group, 25-lower left roller group, 26-upper right roller group, 27-lower right roller group, 28-upper roller row, 29-lower roller row, 231-roller, 232-double roller base, 31-upper chain rack, 32-lower chain rack, 33-upper plastic suction die, 34-lower plastic suction die, 35-upper plastic suction template, 36-lower plastic suction template, 37-guide pillar, 38-upper die closing mechanism, 39-lower die closing mechanism, 310-plastic uptake device shell, 41-rolling system frame, 42-clamping roller, 43-rolling roller, 421-triangle wheel seat, 422-roller, 51-extrusion upper film, 52-extrusion lower film and 53-lamination film.

Detailed Description

The utility model provides a continuous plastic uptake molding high-barrier water sac production device, as shown in figure 1, the device mainly comprises: the device comprises an extrusion system 1, a cache system 2, a bidirectional plastic uptake system 3, a remainder rolling system 4 and a plastic film 5. Wherein: the extrusion system 1 is located at the leftmost end of the installation, as shown in fig. 2, and mainly comprises: two-stage extruder 11, two sets of extruder bases 12, a casting die 13 and a casting die head support 14. The extruder 11 is a universal single-screw extruder, the two extruders can be in the same specification or in different specifications, and the extruder 11 is placed on the extruder base 12; the extruder base 12 is a universal base and is formed by welding a metal frame, and the two bases are the same in height and are placed on the ground; the casting mould 13 is a double-die-head laminated mould, the left side of the casting mould 13 comprises two material inlets which are respectively connected with the two extruders 11, the right side is provided with two casting die orifices which are arranged up and down, the two die orifices both face to the right side, a laminated runner and a distribution runner are arranged in the casting mould 13, materials extruded by the two extruders 11 can be laminated and are averagely distributed to the two casting die orifices for extrusion; the casting die holder 14 is a metal gate frame, and the casting die 13 is hung on the casting die holder 14 to be fixed. The buffer memory system 2 is arranged at the right side of the extrusion system 1 and is adjacent to the extrusion system 1, and as shown in fig. 3, the buffer memory system 2 mainly includes a buffer memory system frame 21, a roller support 22, an upper left roller set 23, a middle left roller set 24, a lower left roller set 25, an upper right roller set 26, a lower right roller set 27, an upper roller row 28, a lower roller row 29, an upper extrusion film 51 and a lower extrusion film 52. The buffer system frame 21 is a supporting frame and a shell of each component of the buffer system 2, is placed on the ground and consists of a cuboid metal frame formed by welding metal supports and a skin covered outside the frame; the roller support 22 is fixed inside the cache system frame 21 and is a cuboid frame assembled by aluminum profiles; the

roller sets

23, 24, 25, 26, 27 are all of the same structure, as shown in fig. 4, and are composed of a roller 231 and a two-roller base 232, wherein the roller 231 is a long-strip-shaped cylinder, two ends of which extend out of a small shaft, a driving motor is arranged inside the roller 231 and can rotate around the small shaft, and two rollers 231 are arranged, extend in the front-back direction and are vertically arranged up and down, and a gap with the same thickness as that of the extruded upper film 51 and the extruded lower film 52 is arranged between the rollers; the twin roller holder 232 is a rectangular parallelepiped metal block having holes at upper and lower sides, the twin roller holder 232 has a pair of front and rear sides, and shafts at both ends of the two rollers 231 are inserted into the holes of the twin roller holder 232 and fixed to the left and right sides of the roller frame 22 by the pair of twin roller holders 232 at the following positions and heights: the upper left roller group 23 is fixed at the upper left side of the roller support 22 and is flush with the casting die orifice above the casting die 13; the left middle roller set 24 is fixed right below the left upper roller set 23 and is flush with the casting die orifice below the casting die 13; the left lower roller set 25 is fixed below the left side of the roller bracket 22 and is spaced from the left middle roller set 24 by a certain distance; the upper right roller set 26 is fixed at a position slightly higher than the lower left roller set 25 below the right side of the roller bracket 22; the lower right roller set 27 is fixed at a position which is lower at the right side of the roller bracket 22 and is level with the lower left roller set 25 in height; the extruded upper film 51 and the extruded lower film 52 are respectively polymer thin films extruded from the upper casting die and the lower casting die of the casting die 13, and the extruded upper film 51 and the extruded lower film 52 are also part of the plastic film 5, wherein the extruded upper film 51 is extruded from the upper casting die of the casting die 13, passes through a gap between two rollers of the roller set 23 rightwards, passes through a gap between two rollers of the roller set 26 rightwards and downwards, and then enters the two-way plastic uptake system 3 rightwards; the extruded lower film 52 is extruded from the lower casting die of the casting die 13, passes rightward through the gap between the two rolls of the roll set 24, passes downward again through the gap between the two rolls of the roll set 25, passes rightward through the gap between the two rolls of the roll set 27, and then enters the two-way blister system 3 rightward; the upper roller row 28 and the lower roller row 29 are both composed of 5 to 10 rollers horizontally arranged in the transverse direction and corresponding supports, the upper roller row 28 is positioned between the upper extruded film 51 and the lower extruded film 52 in the roller bracket 22, and is separated from the upper extruded film 51 by a large distance; the lower roller row 29 is located below the bottom-most extruded lower film 52 inside the roller frame 22 and is spaced a large distance from the extruded lower film 52; the bidirectional plastic uptake system 3 is located right next to the buffer system 2, and as shown in fig. 5, mainly includes an upper extruded film 51, a lower extruded film 52, an upper chain rack 31, a lower chain rack 32, an upper plastic uptake mold 33, a lower plastic uptake mold 34, an upper plastic uptake mold plate 35, a lower plastic uptake mold plate 36, a guide pillar 37, an upper mold clamping mechanism 38, a lower mold clamping mechanism 39, and a plastic uptake device housing 310. Wherein the upper extrusion film 51 and the lower extrusion film 52 extend rightwards from the buffer system 2 and then extend rightwards in parallel; the upper chain rack 31 and the lower chain rack 32 are chain type conveying devices conventionally used by a plastic uptake machine and mainly comprise a pair of chains with hook teeth and corresponding transmission mechanisms, the upper chain rack 31 and the lower chain rack 32 are respectively supported on two sides of an upper extruded film 51 and a lower extruded film 52 and hook the edges of the upper extruded film 51 and the lower extruded film 52 by the hook teeth of the upper chain rack 31 and the lower extruded film 52, the conveying directions are horizontal from left to right, the upper extruded film 51 and the lower extruded film 52 are respectively driven by the upper chain rack 31 and the lower chain rack 32, the conveying speed is adjustable, and the upper chain rack 31 and the lower chain rack 32 are arranged up and down and are adjustable at intervals of 10-20 cm; the upper plastic suction mould 33 and the lower plastic suction mould 34 are a set of plastic suction moulds which are symmetrical up and down and have the same size, the mould cavities are connected with a vacuum system, the mould cavities of the upper plastic suction mould 33 and the lower plastic suction mould 34 respectively correspond to the upper half cavity and the lower half cavity of the water pocket, the mould cavity and the matched mould surface of the upper plastic suction mould 33 are downward, the mould cavity and the matched mould surface of the lower plastic suction mould 34 are upward and respectively positioned right above the extruded upper film 51 and right below the extruded lower film 52, and the center positions of the upper chain frame 31 and the lower chain frame 32 are accurately aligned in the horizontal direction, the upper plastic suction mould 33 and the lower plastic suction mould 34 are respectively fixed on an upper plastic suction mould plate 35 and a lower plastic suction mould plate 36, the upper plastic suction mould plate 35 and the lower plastic suction mould plate 36 are both square mould plates with guide holes at four corners and square cross sections, four holes of the upper plastic suction mould plate 35 and the lower plastic suction mould plate 36 are sleeved on four guide posts 37 which are vertically arranged, the upper plastic suction template 35 and the lower plastic suction template 36 can slide up and down and are driven by an upper die clamping mechanism 38 and a lower die clamping mechanism 39 respectively to move up and down; the upper mold closing mechanism 38 and the lower mold closing mechanism 39 are driven by a toggle rod type mold closing mechanism which is conventional for an injection molding machine and a molding press, are respectively positioned above the upper plastic suction template 35 and below the lower plastic suction mold plate 36, and respectively drive the upper plastic suction template 35 and the lower plastic suction mold plate 36 as well as the corresponding upper plastic suction mold 33 and the lower plastic suction mold 34 to move up and down to complete opening and closing; the plastic uptake device shell 310 is a supporting frame and a shell of each component of the bidirectional plastic uptake system 3 and is integrated with the cache system frame 21; the clout rolling system 4 is placed on the right side of the two-way plastic uptake system 3, as shown in fig. 6, and mainly comprises: a take-up system frame 41, a nip roller 42, a take-up roller 43, a laminating film 53. The rolling system frame 41 is a metal frame assembled by aluminum profiles, the lower part of the rolling system frame 41 can be covered by a metal skin, the rolling system frame 41 is rectangular as a whole and has a larger length extending in the left-to-right direction, and a frame structure extending upwards to a certain height is arranged at the rightmost side; the rolling roller 43 is a cylinder with a larger diameter, two sides of the cylinder are provided with a shaft and corresponding bearing seats, a motor is arranged in the rolling roller 43 and can rotate spontaneously, and the rolling roller 43 is fixed at the top of a frame structure extending out of the rightmost side of the rolling system frame 41; as shown in fig. 7, the nip roller 42 is composed of a triangle wheel seat 421 and a roller 422: the triangular wheel seat 421 is an equilateral triangular metal plate, and three corners of the metal plate are provided with holes; the roller 422 is a round wheel made of polytetrafluoroethylene, and a shaft extends out of one side of the round wheel; the holding roller 42 has a total of 3 rollers 422, which are respectively inserted into the 3 holes of the triangle wheel seat 421, and a certain gap is formed between the rollers 422, which is equal to the thickness of the laminating film 53; the clamping rollers 42 are symmetrically arranged in pairs, welded and fixed on the frames of the front surface and the rear surface of the rolling system frame 41, the wheels face inwards, the clamping rollers 42 are clamped at the front edge and the rear edge of the laminating film 53 in tandem, the clamping is realized by inserting the front edge and the rear edge of the laminating film 53 into the gap of the roller 422 of the clamping rollers 42, and the clamping rollers 42 are arranged in multiple pairs at intervals along the extending direction of the laminating film 53; the laminating film 53 is a part of the plastic film 5, is a thin film which is formed by laminating the extruded upper film 51 and the extruded lower film 52, the middle of the thin film is provided with a water sac structure formed by plastic suction, the laminating film 53 extends rightwards after extending out from the bidirectional plastic suction system 3, continues to extend rightwards until reaching the rightmost end of the winding system frame 41, then extends upwards, and then is rolled into the winding roller 43 at the top of the frame structure at the rightmost side of the winding system frame 41.

The utility model provides a continuous plastic-uptake molding high-barrier water pocket production device, two die orifices of a casting die 13 of an extrusion system 1 continuously extrude two leftmost parts of a plastic film 5, and the feeding process is shown in figure 8: an extruded upper film 51 and an extruded lower film 52; two rollers 231 among the upper left roller set 23, the middle left roller set 24, and the lower left roller set 25, the upper one of which continuously rotates counterclockwise, and the lower one of which continuously rotates clockwise, continuously pull the extruded upper film 51 and the extruded lower film 52 into spaces on their right sides. The first step of the production is feeding, as shown in fig. 9, when the upper right roller set 26 and the lower right roller set 27 rotate at the same speed as the other three

roller sets

23, 24, 25, the upper chain rack 31 and the lower chain rack 32 are also conveyed to the right at the same linear speed, and the extruded upper film 51 and the extruded lower film 52 are fed to a position between the upper suction mold 33 and the lower suction mold 34 in the two-way suction molding system 3; the second step of the production is plastic suction, as shown in fig. 10, after the extruded upper film 51 and the extruded lower film 52 enter the position between the upper plastic suction mold 33 and the lower plastic suction mold 34, the upper right roller set 26, the lower right roller set 27, the upper chain rack 31 and the lower chain rack 32 stop rotating and conveying, and simultaneously the upper plastic suction mold 33, the lower plastic suction mold 34, the upper plastic suction mold plate 35 and the lower plastic suction mold plate 36 are driven by the corresponding mold clamping mechanisms to move downwards and upwards, so that the mold clamping surface of the upper plastic suction mold 33 just clings to the upper extruded film 51 and the mold clamping surface of the lower plastic suction mold 34 just clings to the lower extruded film 52, and the upper and lower half cavities of the water outlet bag are respectively plastic sucked on the upper extruded film 51 and the lower extruded film 52 under the driving of the vacuum system; the third step of the production is pressing, as shown in fig. 10, the upper plastic suction template 35 and the lower plastic suction template 36 are driven by the corresponding mold clamping mechanism respectively to move downwards and upwards until being completely attached, and a certain pressure is applied to press the upper half cavity and the lower half cavity of the water bag together; the fourth step of production is demoulding, wherein the upper plastic suction mould 33 and the lower plastic suction mould 34 move upwards and downwards under the driving of the corresponding mould closing mechanism and the corresponding template respectively, and leave the plastic film 5, so that the plastic suction formed water bag is demoulded; in the three steps of plastic suction, press fit and demolding, the extruded upper film 51 and the extruded lower film 52 continuously extruded by the extrusion system are not conveyed to the right side, but respectively suspended in the space between the upper left roller set 23 and the upper right roller set 26 and the space between the lower left roller set 25 and the lower right roller set 27 to play a role of buffering materials; after the steps are completed, the first step is repeated, and a new molding cycle is started. While the extrusion system 1, the buffer system 2 and the bidirectional plastic sucking system 3 repeat the above cycle process, the winding rollers 43 in the excess material winding system 4 continuously rotate to continuously wind the extruded plastic film 5, the formed water bag is conveyed to the winding rollers 43 at the rear end along with the plastic film 5 in the excess material winding system 4 and is taken down by a manual or additional mechanical arm gripping device at the tail end of the excess material winding system 4, and the demolding step is shown in fig. 11.

The utility model provides a continuous plastic-suction forming high-barrier water sac production device, wherein an extrusion system 1 can only comprise an extruder 11, and a casting mould 13 adopts a non-laminated mould and is used for producing a single-layer water sac.

The utility model provides a continuous plastic uptake molding high-barrier water pocket production device.A rest material rolling system 4 can be set into a conveying structure according to process requirements, and a plurality of clamping rollers 42 guide an extruded plastic film 5 as a conveying medium to convey a molded water pocket to a plurality of process intervals.

The utility model provides a continuous plastic uptake molding high-barrier water sac production device, wherein a high-toughness material and a high-barrier material can be respectively added into two extruders 11 of an extrusion system 1 to prepare a water sac with both anti-falling property and high-barrier property.

The utility model provides a continuous plastic uptake molding high-barrier water sac production device, wherein food-grade materials and high-barrier materials can be respectively added into two extruders 11 of an extrusion system 1 to prepare a food packaging water sac with the inner surface capable of contacting food and the middle layer with high-barrier property.

Claims

1. The utility model provides a continuous plastic uptake shaping high separation nature water pocket apparatus for producing which characterized in that: mainly including extrusion system, buffer memory system, two-way plastic uptake system and clout rolling system, extrusion system is located the leftmost end of whole equipment, mainly includes: the casting device comprises two extruders, two sets of extruder bases, a casting die and a casting die head support, wherein the extruders are placed on the extruder bases; the extruder bases are formed by welding metal frames or directly cast, and the two bases have the same height and are placed on the ground; the casting die is a double-die-head laminated die, the left side of the casting die comprises two material inlets which are respectively connected with two extruders, the right side of the casting die is provided with two casting die orifices which are arranged up and down, the two die orifices face the right side, a laminated runner and a distribution runner are arranged in the casting die, materials extruded by the two extruders are laminated and are evenly distributed to the two casting die orifices for extrusion; the casting die head support is a metal door-shaped frame, and the casting die is hung on the casting die head support to be fixed; the buffer system is arranged on the right side of the extrusion system and is close to the extrusion system, the buffer system mainly comprises a buffer system frame, a roller support, an upper left roller group, a middle left roller group, a lower left roller group, an upper right roller group, a lower right roller group, an upper roller row, a lower roller row, an upper extrusion film and a lower extrusion film, the buffer system frame is a supporting frame and a shell of each component of the buffer system, is placed on the ground and consists of a cuboid metal frame formed by welding metal supports and a skin coated outside the frame; the roller support is fixed inside the frame of the cache system and is a cuboid frame assembled by aluminum profiles; the left upper roller set, the left middle roller set, the left lower roller set, the right upper roller set and the right lower roller set are all of the same structure and are composed of rollers and two roller bases, wherein the rollers are long-strip cylinders, two ends of each roller extend out of small shafts, a driving motor is arranged in each roller and can rotate around the small shafts independently, the two rollers extend in the front-back direction and are vertically arranged up and down, and gaps with the same thickness as that of an upper film and a lower film are formed between the two rollers; the double-roller seat is a cuboid metal block, the upper part and the lower part of the double-roller seat are provided with holes, the double-roller seat is provided with a pair of front and back parts, shafts at two ends of two rollers are inserted into the holes of the double-roller seat, and the double-roller seat is fixed on the left side surface and the right side surface of the roller bracket at the following positions and heights through the pair of double-roller seats: the upper left roller group is fixed above the left side of the roller bracket and is flush with a casting die orifice above the casting die; the left middle roller group is fixed right below the left upper roller group and is flush with a casting die orifice below the casting die; the left lower roller set is fixed below the left side of the roller bracket and has a spacing distance with the left middle roller set; the upper right roller set is fixed at the position which is slightly higher than the lower left roller set below the right side of the roller bracket; the right lower roller set is fixed at the position below the right side of the roller bracket, and the height of the right lower roller set is flush with the left lower roller set; the upper extruded film and the lower extruded film are respectively polymer films extruded from an upper casting die orifice and a lower casting die orifice of the casting die, and the upper extruded film and the lower extruded film are also part of the plastic film, wherein the upper extruded film is extruded from the upper casting die orifice of the casting die and passes through a gap between two rollers of the roller set rightwards and passes through a gap between the two rollers of the roller set rightwards and downwards, and then enters the bidirectional plastic uptake system rightwards; extruding a lower film from a lower casting die orifice of the casting die, passing through a gap between two rollers of the roller set rightwards, passing through a gap between the two rollers of the roller set downwards, passing through a gap between the two rollers of the roller set rightwards, and entering a bidirectional plastic uptake system rightwards; the upper roller row and the lower roller row are respectively composed of a plurality of rollers which are horizontally arranged in the transverse direction and corresponding supports, and the upper roller row is positioned between an upper extruded film and a lower extruded film in the roller support and has a spacing distance with the upper extruded film; the lower roller row is positioned below the bottom extrusion lower film in the roller bracket and has a spacing distance with the extrusion lower film; the bidirectional plastic uptake system is positioned on the right side of the cache system and is adjacent to the cache system, and mainly comprises an upper chain rack, a lower chain rack, an upper plastic uptake mold, a lower plastic uptake mold, an upper plastic uptake template, a lower plastic uptake template, a guide pillar, an upper mold closing mechanism, a lower mold closing mechanism and a plastic uptake device shell, wherein an extruded upper film and an extruded lower film extend rightwards and then extend rightwards in parallel; the upper chain rack and the lower chain rack are chain type conveying devices used by the plastic uptake machine, and mainly comprise a pair of chains with hook teeth and corresponding transmission mechanisms, the upper chain rack and the lower chain rack are respectively supported at two sides of an upper extruded film and a lower extruded film, and the edges of the upper extruded film and the lower extruded film are hooked by the hook teeth of the upper chain rack and the lower extruded film, the conveying directions are horizontal from left to right, the upper extruded film and the lower extruded film are respectively driven by the upper chain rack and the lower chain rack, and the conveying speed is adjustable; the upper plastic suction mould and the lower plastic suction mould are a set of plastic suction moulds which are symmetrical up and down and have the same size, the mould cavities are connected with a vacuum system, the mould cavities of the upper plastic suction mould and the lower plastic suction mould respectively correspond to the upper half cavity and the lower half cavity of the water pocket, the mould cavity and the matched mould surface of the upper plastic suction mould face downwards, the mould cavity and the matched mould surface of the lower plastic suction mould face upwards and are respectively positioned right above the extruded upper film and right below the extruded lower film, the center positions of an upper chain frame and a lower chain frame are accurately aligned in the horizontal direction, an upper plastic suction mould and a lower plastic suction mould are respectively fixed on an upper plastic suction template and a lower plastic suction template, the upper plastic suction template and the lower plastic suction template are both square templates, four corners of each of the upper plastic suction template and the lower plastic suction template are provided with guide holes, the cross section of each of the upper plastic suction template and the lower plastic suction template is square, four holes of each of the upper plastic suction template and the lower plastic suction template are sleeved on four vertically-placed guide pillars and can slide up and down, and the upper plastic suction template and the lower plastic suction template are respectively driven by an upper die closing mechanism and a lower die closing mechanism to move up and down; the upper die closing mechanism and the lower die closing mechanism are respectively positioned above the upper plastic suction template and below the lower plastic suction mould plate in a driving mode, and respectively drive the upper plastic suction template and the lower plastic suction mould plate as well as the corresponding upper plastic suction mould and the corresponding lower plastic suction mould to move up and down to complete opening and closing; the shell of the plastic uptake device is a support frame and a shell of each component of the bidirectional plastic uptake system and is integrated with the frame of the cache system; the excess material winding system is arranged on the right side of the bidirectional plastic uptake system.

2. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: the excess material winding system mainly comprises a winding system frame, a clamping roller, a winding roller and a pressing film, wherein the winding system frame is a metal frame assembled by aluminum profiles, the lower part of the winding system frame is covered by a metal skin, the winding system frame is rectangular as a whole and has a length extending in the left-to-right direction, and the rightmost side of the winding system frame is provided with an upwards extending frame structure; the winding roller is a cylinder, shafts and corresponding bearing seats are arranged on two sides of the cylinder, a motor is arranged in the winding roller to rotate automatically, and the winding roller is fixed on the top of a frame structure extending out of the rightmost side of a winding system frame; the clamping roller consists of a triangle wheel seat and a roller wheel: the triangular wheel seat is an equilateral triangle metal plate, and three corners of the triangular wheel seat are provided with holes; the roller is a round wheel made of polytetrafluoroethylene, and a shaft extends out of one side of the roller; the clamping rollers are provided with three rollers which are respectively inserted into the three holes of the triangular wheel seat, and gaps are reserved among the rollers and are equal to the thickness of the laminating film; the clamping rollers are symmetrically arranged in pairs, are welded and fixed on the frames on the front surface and the rear surface of the rolling system frame, are provided with wheels facing inwards, are clamped at the front edge and the rear edge of the laminating film in tandem, and are clamped by inserting the front edge and the rear edge of the laminating film into the gap of the roller of the clamping roller; the laminating film is a film which is laminated together after the upper film and the lower film are extruded and subjected to plastic uptake, a water sac structure formed by plastic uptake is arranged in the middle of the film, the laminating film continues to extend rightwards after stretching out rightwards from the bidirectional plastic uptake system, extends upwards after reaching the rightmost end of the rolling system frame, and then is rolled into the rolling roller at the top of the frame structure at the rightmost end of the rolling system frame.

3. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: the upper chain frame and the lower chain frame are arranged up and down and are adjustable at an interval of 10-20 cm.

4. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: the upper plastic suction mould and the lower plastic suction mould of the bidirectional plastic suction system are provided with the temperature control systems, so that the extruded upper film and the extruded lower film are convenient for plastic suction molding, the edges of the extruded upper film and the extruded lower film are firmly attached, and the edge sealing performance of the water sac is better.

5. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: the extruded upper film and the extruded lower film still have temperature when entering an upper plastic suction mould and a lower plastic suction mould of a bidirectional plastic suction system, the film is in a plastic deformation state, the film is easy to form during plastic suction and edge pressing, and the edges are tightly attached into a whole.

6. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: the extrusion system can only comprise one extruder, and the casting die adopts a non-laminated die and is used for producing the single-layer water sac.

7. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: and the excess material winding system guides and extrudes a plastic film as a conveying medium through a plurality of clamping rollers according to a conveying structure required by the process, and conveys the formed water bag to a plurality of process sections.

8. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: high-toughness materials and high-barrier materials can be respectively added into two extruders of the extrusion system to prepare the water bag with both drop resistance and high barrier.

9. The continuous plastic-uptake forming high-barrier water bag production device according to claim 1, characterized in that: food-grade materials and high-barrier materials are respectively added into two extruders of the extrusion system to prepare the food packaging water bag with the inner surface capable of contacting food and the middle layer with high-barrier property.