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433 results about "Plastic film" patented technology

Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet". These thin plastic membranes are used to separate areas or volumes, to hold items, to act as barriers, or as printable surfaces.

Frog farming method and frog cage

Frog farming method and frog cage are provided. The method comprises: I, putting young frogs in the frog cage in spring; II, putting lure attracting mosquitoes into the frog cage into the frog cage in summer and autumn, thereafter the frogs feed on the mosquitoes; III, avoiding snakes entering the frog cage in the place where the snakes inhabit; IV, covering the frog cage with plastic film in winter, mounting an electric lamp in the frog cage, increasing the temperature of air in the frog cage to keep the frogs not hibernating and promote the frogs to grow; V, adding artificial lure if necessary. The frog cage includes a fixed frog cage and a vehicle-mounted frog cage, both including inner tiers, wherein a water basin, a terrace and a stairway communicating the upper and lower tiers are arranged on each tier, and the frog cage is covered with a mesh enclosure. The frog framing method and frog cage have the advantages that the frogs are farmed in multi-tier cages, lures are used outdoors to attract insects, pests are eliminated for crops, natural ecology is balanced, and food sources are also provided for human; cage framing of frogs is very low in cost; frogs farmed have high reproductive rate, high disease resistance and high feed conversion capacity.
Owner:姚兴明

Aluminum-plastic film, preparation method thereof, battery and electric device

The application relates to the technical field of battery packaging, in particular to an aluminum-plastic film, a preparation method thereof, a battery and an electric device. The aluminum-plastic film comprises an aluminum layer, at least part of the surface of the aluminum layer is provided with a passivation layer, and the porosity of the passivation layer is less than or equal to 10%. The aluminum-plastic film is stable in insulation performance at high temperatures and can be used for the packaging of solid-state batteries.
Owner:BYD CO LTD

Pouch battery automatic liquid injection machine

This utility model discloses an automatic electrolyte injection machine for soft-pack batteries, relating to the field of lithium battery manufacturing technology. It includes a frame, an injection mechanism, a flaring mechanism, a turntable mechanism, and a centering clamping mechanism. The injection mechanism drives the injection plate to rise and fall via a lifting module. The injection tube is equipped with an independent quantitative injection pump and a coaxial nitrogen injection pipe, achieving precise electrolyte injection and oxidation protection. The flaring mechanism uses a vacuum suction cup to adsorb the battery opening, and a ball screw drives the flaring plate to open and close laterally. The centering clamping mechanism uses an elastic buffer component and a pressure sensor to adaptively clamp the battery, avoiding damage to the aluminum-plastic film. The turntable mechanism is driven by a direct-drive motor to rotate the positioning turntable in increments, enabling continuous operation with multiple stations. This utility model integrates nitrogen protection, residual liquid adsorption, and flexible clamping functions, solving the problems of low efficiency, poor injection accuracy, and contamination risk of traditional equipment. It is suitable for mass production of high-consistency soft-pack batteries.
Owner:HUBEI DEYU INVESTMENT HLDG CO LTD

A method for rapid harmless treatment of oil-containing sludge by photo-coupled biodegradation

This invention relates to the field of harmless treatment technology for oily sludge generated during crude oil extraction, specifically to a method for rapid harmless treatment of oily sludge through photo-coupled biodegradation. Conventional methods for harmless treatment of oily sludge are inefficient and energy-intensive. To address these problems, this invention provides a method for rapid harmless treatment of oily sludge through photo-coupled biodegradation. This method fully utilizes the sunny summer conditions in Northwest China, creating a "greenhouse effect" by covering and stacking the sludge with plastic film. This significantly raises the temperature of the stack without an external heat source, providing a suitable high-temperature environment for thermophilic petroleum hydrocarbon-degrading bacteria, greatly increasing the biodegradation rate of petroleum hydrocarbons, and shortening the traditional biological treatment cycle from several months to several weeks, thus achieving rapid harmless treatment of oily sludge.
Owner:CHANGZHOU UNIV

A plastic film feeding mechanism

This utility model relates to the field of plastic film production and processing technology, and discloses a plastic film feeding mechanism, including a support column, an unwinding assembly on the outer wall of the support column, a support plate fixedly connected to the outer wall of the support column, a limit assembly on the inner wall of the support plate, a conveying roller rotatably connected inside the support column, and a lifting assembly on the outer wall of the support column; the lifting assembly includes a lifting plate, the outer wall of the lifting plate being slidably connected to the outer wall of the support column, a threaded rod threadedly connected inside the lifting plate, and a lifting frame slidably connected to the outer wall of the lifting plate. In this utility model, a motor drives the threaded rod to rotate, causing the threaded rod to drive the lifting plate, connecting plate four, and lifting plate two to rise or fall along the guide rod, thereby adjusting the height of the mounting column and allowing the device to adapt to different film roll states.
Owner:SHANGQIU GUOYANG PACKAGING NEW MATERIALS CO LTD

Wrapping paper for food

Wrapping paper (10, 10.3) for food (12),- comprising a paper layer (20, 20.3),- comprising a plastic film (30) which is only partially attached to the paper layer (20, 20.3) via adhesive points (40, 42),- characterized in that,- the paper layer (20, 20.3) has a basis weight of less than 30 g / m2, in particular a basis weight of about 22 g / m2,- the plastic film (30) has a thickness of less than 6 µm, in particular a thickness of about 4 µm.
Owner:SCHROPP GMBH & CO KG

A device for membrane curing of mass concrete and a method of use

The application discloses a kind of suitable for mass concrete film laying maintenance device and method, including the first drag frame of laying plastic film, laying geotextile second drag frame and water spraying conduit valve for watering, second drag frame is equipped with cast-in-place concrete, cast-in-place concrete below is equipped with water spraying position, the rear portion of first drag frame is equipped with first cutting die, and the rear portion of second drag frame is equipped with second cutting die.The application is suitable for mass concrete film laying maintenance device and method, once complete laying film, geotextile and the whole maintenance process of watering, improve work efficiency, save a lot of manpower, improve maintenance and cooling effect, can more quickly realize accurate control, improve mass concrete film laying maintenance efficiency, ensure that cast-in-place mass concrete can be timely laid film and watered and cooled.
Owner:CHINA CHEM SOUTH CONSTR INVESTMENT (JIANGXI) CO LTD

Automatic flaring and boxing structure for lithium battery top-side sealing machines

ActiveCN224437629UReliable openingAccurate insertionRotation - actionElectric machinery
This utility model relates to an automatic flaring and boxing structure for lithium battery top-side sealing machines. The machine body is equipped with a sealing platform, a conveying component, and a material collection box. A flaring component is installed between the sealing platform and the material collection box. The flaring component includes a flaring platform, a flaring cutter, a drive motor, and a fixed base. The flaring platform and the drive motor are installed above the fixed base. The blade of the flaring cutter is connected to the drive motor, and the tip of the flaring cutter faces the flipping platform. The surface of the fixed base is equipped with a push-pull cylinder, a guide rail, and a movable platform. The movable platform is slidably connected to the surface of the guide rail. The drive motor is installed on the surface of the movable platform. The push-pull cylinder is installed on the edge of the fixed base. The extension rod of the push-pull cylinder is connected to the movable platform. The drive motor drives the flaring cutter to rotate. The rotation of the cutter stably and reliably opens the opening of the aluminum-plastic film, forming a channel that meets the requirements.
Owner:DONGGUAN RUNNENG MASCH CO LTD

A full wrap dental patch

ActiveCN224292041UDentistryAdhesiveToothpaste
The utility model discloses a full -wrap formula toothpaste, including backing layer, the upper toothpaste is connected with in the upper part of one side middle part of backing layer, the lower toothpaste is provided with below upper toothpaste, upper toothpaste and lower tooth paste outside all are provided with a plurality of extension pastes, upper toothpaste, lower toothpaste and one side of extension pastes all are provided with plastic film layer, one side of plastic film layer is provided with elastic gel layer, is provided with the adhesive on plastic film layer. Advantageous effects lie in: the utility model discloses through setting extension pastes, adhesive and protection pastes, can make protection pastes connect with plastic film layer through adhesive, and when the user connects upper toothpaste, lower toothpaste and extension pastes, the user separates protection pastes, then makes upper toothpaste, lower toothpaste and extension pastes interconnect through adhesive, can all be wrapped to user's teeth, and then carries out the whitening protection to the teeth, and the convenient use improves practicality.
Owner:ONUGE PERSONAL CARE (GUANGDONG) MANUFACTURER GROUP CO LTD

Meltblown machine for producing nonwoven fabric

This utility model discloses a coating machine for producing nonwoven fabrics, relating to the field of nonwoven fabrics. The coating machine includes a main body, on which a drying unit is mounted for drying the film on the nonwoven fabric. An extrusion unit is also mounted on the main body. In this coating machine, a connecting assembly moves a push rod, causing a connecting frame to move accordingly. The connecting frame then moves a scraper plate to flatten the edge of the nonwoven fabric, preventing incomplete film coating at the edges. Simultaneously, an extrusion roller adheres to the nonwoven fabric, tightening it under pressure to prevent folding and ensure uniform film coating, thus improving the final product quality of the nonwoven fabric.
Owner:HUBEI HAIKELITE MEDICAL TECH CO LTD

A square pile film covering device

The utility model discloses a square pile film covering device, including the bottom plate, the bottom plate top installs the electric transmission belt, the top of bottom plate still is provided with the film -coated cylinder, the edge surface of film -coated cylinder is installed the taper tooth block, the outside of film -coated cylinder is provided with the servo motor, the output of servo motor is fixed with the bevel gear machine, the surface of film -coated cylinder is provided with the support ring, the support ring is fixed on the surface of bottom plate through the stand. This square pile film covering device, the motion of stake body between two electric transmission belts, when stake body passes through the film -coated cylinder, servo motor passes taper gear and taper tooth block and pushes the film -coated cylinder and rotates in the support ring, and the rotating film -coated cylinder drives the winding wheel and moves around the outside of stake body, at the same time, the plastic film in winding wheel is wrapped and covered on the surface of stake body and protects it, improves the film -coating efficiency, and also improves the uniformity of plastic film on the surface of stake body.
Owner:WUHAN KEDIMEI TECH CO LTD

Preparation method of all-solid-state lithium battery electrolyte for energy storage and integrated battery

The application provides a preparation method of a full-solid-state lithium battery electrolyte and an integrated battery for energy storage, and belongs to the technical field of lithium ion secondary batteries, and can at least partially solve the problems of insufficient comprehensive performance of solid-state electrolyte, large solid-solid interface impedance, poor cycle stability, poor high-voltage adaptability and high safety risk of existing full-solid-state lithium batteries, and the application comprises the following steps: preparing a polydopamine functionalized graphene oxide aqueous solution, preparing a lithiated polyionic liquid ethanol aqueous solution, preparing a Co-N-C dispersion, preparing an electrolyte film based on the above-mentioned solutions, then preparing a positive electrode and a negative electrode, sequentially stacking the positive electrode, the electrolyte film and the negative electrode, realizing close adhesion of the solid-solid interface through hot pressing, performing gradient heat curing treatment after assembly, finally adopting aluminum plastic film packaging to obtain an integrated battery. The integrated battery prepared in the application can effectively reduce the interface impedance, improve the cycle stability and high-voltage adaptability, reduce the safety risk, and optimize the comprehensive performance.
Owner:XIAN THERMAL POWER RES INST CO LTD

Plastic product recycling crusher

The utility model discloses a crusher for plastic product recycling, including positioning base plate, through the integration cylinder and box on positioning base plate, set up the crushing assembly in cylinder and carry out the comminution treatment to plastic film, and the plastic film after crushing enters spiral feeding assembly through the discharge pipe, and then is conveyed to the box, and compaction treatment is carried out to the box by power assembly, and this integrated design makes the plastic film in the recycling process not need to shift among different equipment, greatly shortens the recycling process, improves the overall recovery efficiency, reduces the time and manpower cost, through setting up power assembly in the box and carrying out compaction treatment to the plastic film after crushing, effectively reduce the volume of plastic film, improve its packing density, and the plastic film after compaction treatment can fully utilize the space of transport vehicle and warehouse in the transportation and storage process, reduces the transport frequency and the warehousing area demand, thereby reduces the transportation and storage cost.
Owner:ANHUI ZHONGLIPU NEW MATERIALS TECHNOLOGY CO LTD

plastic film perforator

ActiveCN224267621UPrecise punchingEfficient punchingPlant protectionWebs handlingStructural engineeringPlastic film
This utility model discloses a plastic film perforation machine, including a frame, an unwinding section, a perforation section, and a rewinding section. One side of the frame is the operating side, and the other side is the transmission side. The unwinding section includes a roller mounted on the frame, on which a roll of plastic film is wound. The roller rotates to unwind the roll. The perforation section is mounted on the frame and close to the unwinding section. The perforation section includes a piercing mechanism for piercing and perforating the plastic film as it passes. The rewinding section is located on the side of the perforation section away from the unwinding section and is used to rewind the perforated plastic film back into a roll. A power unit drives the unwinding and rewinding sections in a cyclical motion, ensuring that the plastic film is taut when passing through the perforation section. This utility model unwinds the film using the unwinding section, rewinds it using the rewinding section, and perforates the roll at predetermined positions using the perforation section. This allows for accurate, efficient, and controllable perforation of the plastic film before placement.
Owner:梁忠臣

Battery aluminum plastic film double folding machine

The utility model discloses a battery aluminium plastic film second -time edge folding machine, including primary edge folding device and second -time edge folding device, primary edge folding device includes first rack, first upper pressure plate, first lower pressure plate, first folding knife, first jacking drive mechanism and first folding knife drive mechanism, first jacking drive mechanism drives first lower pressure plate, and first folding knife drive mechanism drives first folding knife, and second -time edge folding device includes second rack, second upper pressure plate, second lower pressure plate, second folding knife, second lower pressure drive mechanism, second folding knife drive mechanism and second jacking drive mechanism, second lower pressure drive mechanism drives second upper pressure plate, and second folding knife drive mechanism drives second folding knife, and the first jacking stroke of second jacking drive mechanism drives second lower pressure plate to be close to second upper pressure plate, and the second jacking stroke of second jacking drive mechanism drives the aluminium plastic film second -time bending after flattening. The utility model can reduce the damage of electric core, and the edge folding precision is high, and the assembly debugging is simple, and the cost is low.
Owner:DONGGUAN TEC RICH ENGINEERING CO LTD

Moisture-proof composite corrugated paperboard

The utility model discloses a kind of moisture-proof composite corrugated paperboard, it is related to corrugated paperboard field, specifically a kind of moisture-proof composite corrugated paperboard, including bottom layer moisture-proof layer, inner layer corrugated core layer, intermediate barrier layer, outer layer corrugated core layer and surface layer moisture-proof layer from inside to outside are sequentially arranged;The bottom layer moisture-proof layer is PET film kraft paper, the surface layer moisture-proof layer is PE film kraft paper, the intermediate barrier layer is aluminum foil composite paper, the inner layer corrugated core layer is melamine resin modified corrugated paper, the utility model solves the current corrugated paperboard surface using coating single waterproof coating or using single layer plastic film film coating, the moisture-proof effect of this single coating processing mode is limited, and easily failure due to abrasion;Although single layer film can block part liquid water, it is difficult to solve water vapor penetration problem, and interlayer is mostly starch adhesive, swelling peeling after meeting water, cannot satisfy the long-term use demand of high humidity environment problem.
Owner:ZHEJIANG SHENGHUA PACKAGING CO LTD

Automated process and method for material separation and recycling

An automated process for separating and recycling a broad mix of waste material including industrial and commercial streams. The process begins by collecting the broad mix of waste material. Optionally, the broad mix of waste material is sorted to remove contamination from the broad mix of waste material. Next, the broad mix of waste material is coarsely shredded. Plastic film is removed from the broad mix of waste material, creating a stream of plastic film and a separate stream of dirty cardboard. Residual plastic is separated from the cardboard stream and included either in the plastic stream or in an independent third stream. The process yields separate streams of a film-rich recycled plastic and a clean recycled cardboard having a purity of at least about 95%. Also provided are a related system and at least one computer-readable non-transitory storage medium embodying software for performing the process.
Owner:REPUBLIC SERVICES INTELLECTUAL PROPERTY HLDG INC

Winding device for plastic film production

The utility model belongs to the machinery of plastic film production, concretely relates to the winding device of plastic film production, including the bottom plate, the both sides of bottom plate top respectively fixed connection have first support plate and second support plate, one side of first support plate is provided with first motor, be provided with the roll between first support plate and second support plate, the outside of roll is provided with support subassembly, the side away from the limiting plate of second support plate is provided with limiting subassembly. The utility model discloses through rotating first two -way screw rod and drives the movement of sliding seat, and sliding seat moves and drives the movement of first connecting plate, and then adjusts the height of support frame, makes support frame and the inner wall of winding drum closely fit and completes fixed, to realize the winding drum of matching different diameters, through starting second motor and driving second two -way screw rod rotation, and second two -way screw rod drives movable block movement, and then through second connecting plate and drive limiting plate movement, adjust the distance of limiting plate and first support plate, to adapt to the roll of different length.
Owner:ZHEJIANG ZHONGYE PACKAGING TECH CO LTD

An on-line plastic film winding mechanism

The utility model relates to the technical field of plastic film winding, especially relates to a kind of plastic film online winding mechanism, winding subassembly includes base and the winding roller of rotation connection on base;Inclined surface is arranged on base;The height of inclined surface gradually reduces along the direction of approaching winding roller;The surface sliding connection of inclined surface has compression roller support;Compression roller support is rotatably connected with compression roller;Compression roller support is connected with counterweight.In the use of the utility model, constant pressure can guarantee the quality of film winding.
Owner:SHANTOU F T Z OCTOPLAS TECH LTD

Multi-directional stress compensated sodium battery lamination seal head and method of manufacture

This application provides a sodium battery aluminum-plastic film encapsulation head based on multi-directional stress compensation and its manufacturing method, belonging to the field of battery encapsulation technology. It solves the problem that existing solutions mostly focus on single material or process optimization, failing to achieve high efficiency, reliability, and durability in sodium battery encapsulation heads. The head includes a base layer, a buffer layer, and a shaping layer arranged from bottom to top. The base layer and the shaping layer are mechanically interlocked through a trapezoidal variable cross-section tenon and mortise structure. A buffer layer is provided at the connection interface between the base layer and the shaping layer, and the upper surface of the buffer layer is covered with a gradient wear-resistant layer. The working surface of the shaping layer has arranged main stress compensation protrusions and auxiliary stress compensation protrusions. The number of main stress compensation protrusions and the number of auxiliary stress compensation protrusions have a linear relationship, and the main stress compensation protrusions and auxiliary stress compensation protrusions are gradient distributed in height, angle, and density. This application is applied to sodium battery aluminum-plastic film encapsulation.
Owner:ZMARTEC TECH(SHENZHEN) LTD

Modified aluminum plastic film, preparation method thereof, lithium battery and application

The invention provides a modified aluminum plastic film and a preparation method thereof, a lithium battery and application, and the modified aluminum plastic film comprises an outer resistance layer, a permeation resistance layer and a heat sealing layer from outside to inside; wherein the heat sealing layer is made of modified polyolefin, and microcapsule particles, a microcapsule particle flame retardant core body and a polymer shell are embedded in the heat sealing layer. The functional modified polyolefin film is adopted as the inner sealing layer of the aluminum plastic film, and meanwhile, the microcapsule particles with cooling and flame-retardant characteristics are wrapped, so that the interior of the battery cell can be cooled while the sealing effect is guaranteed, and meanwhile, when the temperature in the battery cell reaches 130 DEG C or above, the temperature of the battery cell can be reduced; the polyolefin film melts and releases the internal flame retardant and coolant to absorb heat released by side reaction, so that the chain type side reaction is favorably cut off, and the risk of fire and explosion is effectively reduced.
Owner:PETROCHINA SHENZHEN NEW ENERGY RESEARCH INSTITUTE CO LTD +1

An automated production apparatus and method for double-layer sheet-like plastic film

This invention relates to an automated production apparatus and method for double-layer sheet plastic film, comprising a feeding rack, a storage tank, a diversion valve, an auxiliary material roll, a feeding pipe and a discharge pipe, a roller pressing and impregnation machine for secondary shaping, and a stacking assembly for stacking SMC sheets. The main objective of this invention is to achieve one-time production of double-layer SMC sheets through a fully automated double-layer SMC sheet production process, which doubles the production efficiency compared to the traditional single-layer SMC sheet production process. Each layer of SMC sheet is pressed by pressing roller one and pressing roller two during assembly, resulting in uniform thickness of the SMC sheet. The stacking assembly folds the SMC sheet into an S-shape and stacks it in a packaging box, ensuring that the stress on each layer of sheet is evenly distributed during storage and transportation, effectively preventing local deformation or cracking of the SMC sheet and improving the quality of the finished product.
Owner:ZHEJIANG HONGXIN COMPOSITE MATERIAL CO LTD

Composite bioplastic material

PendingUS20260193434A1Polymer scienceBiopolymer
A composite material and method can include a bioplastic film, the bioplastic film including a first surface and a second surface, wherein the first surface denotes an inner facing surface and the second surface denotes an exterior facing surface. The bioplastic film can include a polypeptide-based or polysaccharide-based biopolymer, or a mixture of polypeptide-based and polysaccharide based biopolymer, and a bioplasticiser substance. An inner product-facing surface of the bioplastic film can include a coating that includes alpha-eleostearic acid as a major component. Further provided are products containing the material and their uses in the fields of packaging, coatings and ink-printable substrates.
Owner:QINETIQ LTD

Cleaning textile roll, cleaning agent, cleaning textile and associated cleaning system and system

Role of a cleaning textile for cleaning printing cylinders of a printing system, wherein the cleaning textile is impregnated with a cleaning agent composition, the cleaning agent composition comprising an organic solvent and a cellulose solubilizer, wherein the organic solvent is a propylene glycol oligomer, which is di(propylene glycol)propyl ether, and wherein the roller (12) is inserted into a removable sealing bag (15) which is designed to seal the roller (12) of cleaning textile (13) in order to prevent the cleaning agent composition from evaporating before use, wherein the sealing bag (15) is tubular and is made of a multilayer plastic film.
Owner:BW CONVERTING AB

A thickness detection device for foam plastic film processing

The utility model discloses a kind of thickness detection devices for foamed plastic film processing, belong to foamed plastic film detection technical field, a kind of thickness detection devices for foamed plastic film processing, including rack and the inner side of the rack and the hollow structure setting of inside is fixedly connected to the platform, the inner chamber top wall and bottom wall of the rack are respectively installed with the first laser displacement sensor and the second laser displacement sensor between mutually opposite emission end, the top and bottom of the platform are respectively opened with the through hole corresponding with the first laser displacement sensor and the second laser displacement sensor, the top of the rack is installed with display control host computer, it is accurately determined when installing by the vertical distance between two sensors, therefore the thickness of foamed plastic film can be obtained by simple mathematical calculation, and display on the display screen of display control host computer, effectively improve the precision of detection.
Owner:FUZHOU YANXIN PACKAGING MATERIALS CO LTD

A dust removal device for plastic film production

This utility model discloses a dust removal device for plastic film production, including a dust collection box. A drive box is fixedly connected to the rear of the dust collection box, and support plates are fixedly connected to both the left and right sides. A winding motor is fixedly connected to the dust collection box. Openings are provided on both the front and rear sides of the dust collection box, and sliding rods are fixedly connected to both openings. Sliding blocks are slidably connected to the sliding rods, and pressure rollers are rotatably connected between the two sliding blocks. Inlet and outlet ports are provided on both the left and right sides of the dust collection box, and guide rollers are rotatably connected to both inlet and outlet ports. A conductive rubber roller is rotatably connected to the center of the dust collection box, and an exhaust fan is fixedly connected to the bottom of the dust collection box below the conductive rubber roller. This utility model's dust removal device for plastic film production, through a specific structure, uses the conductive rubber roller as a dust collecting electrode to adsorb dust on the film, thereby completing the cleaning of dust on the film surface. Simultaneously, the exhaust fan removes dust from inside the dust collection box, improving the overall dust removal effect of the film.
Owner:ZHEJIANG ZHONGYE PACKAGING TECH CO LTD

A lithium battery aluminum plastic film soft package pressing device

ActiveCN224554372UPlastic filmLithium battery
The utility model discloses a kind of lithium battery aluminium plastic film soft package pressing device, it is related to the technical field of pressing device, solve the pressing device, if the size of aluminium plastic film is less than the size of pressing plate and height is less than the height of clamping plate, then clamping plate is clamped after aluminium plastic film, pressing plate cannot effectively compact aluminium plastic film, pressing plate can extrude clamping plate, thereby reduce the use efficiency of the device The problem, including base and piston pipe, the upper end of the base is provided with support plate, support column is fixedly installed between the support plate and base symmetrically, the piston pipe is slidably connected between base and support plate, piston pressing plate is slidably connected in the piston pipe, by the cooperation between the piston pressing plate and the limiting pressing plate set, aluminium plastic film can be limited while extruding, and limiting pressing plate can be used to limit and extrude aluminium plastic film in vertical direction simultaneously, improve the protection and extrusion effect of aluminium plastic film.
Owner:SHENZHEN TUOYINGFENG TECH CO LTD