46 results about "Parafilm" patented technology

The utility model discloses a sauce material sealing machine which comprises a platform, a main body frame, a rotating shaft adjusting mechanism, a mounting clamping mechanism and an adjusting auxiliary mechanism, and the rotating shaft adjusting mechanism comprises a driving shaft assembly, a sealing film shaft, an adjusting shaft, a clamping pipe, a clamping rod, a lateral plate and an adjusting plate. The installation clamping mechanism comprises a clamping groove, an extending spring rod, a rotating ring, a pushing block, a locking block, a directional ring and a locking frame, the position and the tensioning degree of a sealing film can be accurately adjusted through cooperation of a driving shaft assembly, a sealing film shaft, an adjusting shaft and other components, and therefore it is guaranteed that the sealing effect is uniform and stable, and the clamping rod and a clamping pipe are matched to achieve the effect of sealing. Clamping and fixing can be rapidly achieved, the operation time is shortened, the working efficiency is improved, through the matched design of the orientation ring, the lock frame and the lock block, the clamping ring and the clamping rod can be stably fixed to the proper position, loosening caused by vibration or external force in the working process is avoided, and the accuracy of sealing work is ensured.

The invention provides a boiling-resistant traceless sealing film for an aluminum foil box and a preparation method of the boiling-resistant traceless sealing film, and relates to the field of packaging. Comprising a PET layer, an aluminum foil layer, a BOPA enhancement layer and a heat sealing layer, wherein the BOPA enhancement layer comprises BOPA resin, organic modified montmorillonite, quaternary ammonium salt nano cellulose, a composite antioxidant, a lubricant and a compatilizer; the heat sealing layer comprises metallocene polyethylene, ethylene-vinyl acetate, maleic anhydride grafted polyethylene, a lubricant, thiolated nano zinc oxide, chitosan, organic modified montmorillonite and antibacterial modified silicon dioxide; the aluminum foil layer is made of chitosan-cellulose modified aluminum foil. The sealing film has the advantages of being high in strength, easy to tear off and good in antibacterial property.

The tissue box sealing film comprises a film body, an expansion opening and a tissue taking hole are formed in the film body, the expansion opening is communicated with the tissue taking hole, a tearing piece is arranged in the tissue taking hole, the tearing piece is connected to the film body in a breakpoint mode, and the expansion opening is combined with the tissue taking hole. The sealing film is expanded when paper is taken, meanwhile, the paper taking hole facilitates twisting and taking of the paper, the specially-arranged paper taking hole enables paper towels to be extracted more easily, meanwhile, the tearing trouble is reduced, the paper taking efficiency and convenience are improved, due to the arrangement of the tearing piece, a user can open the paper taking hole through the simple tearing action, and the paper taking efficiency and convenience are improved. Due to the breakpoint connection design of the tearing piece, the situation that the film is torn difficultly or torn incompletely is avoided when the film is torn, and therefore the convenience of a user is improved.

An ingredient blending device comprises a rack, a supporting frame for supporting a crucible with an upward opening is arranged on the rack, and a sealing film is arranged at the position, above the supporting position of the crucible, of the rack. The crucible moves upwards along with the supporting frame to the position of the sealing film with the film face located at the horizontal position, and when the film blocks the opening of the crucible in a sealed mode, the driving shaft drives the machine frame to rotate in the plumb plane. When the machine frame stops rotating and resets to the locking position where the opening of the crucible faces upwards, the cutting unit cuts out a film cutting piece blocking the opening area of the crucible on the sealing film, and the film smashing unit abuts against and pushes the film cutting piece to move towards the interior of the crucible. The sealing film is used for sealing the opening of the crucible, the cutting unit can cut off the film body blocking the area of the opening of the crucible, and the film body is pushed into the crucible by the film smashing unit and is fused together with materials, so that the loss of original materials in the crucible is avoided, and the fused film body does not influence the subsequent detection result.

The utility model relates to a fish can convenient to uncover, which belongs to the technical field of cans and comprises a can body with an upward opening and an accommodating cavity formed inside, a sealing film for sealing is hermetically connected to the opening of the can body, and the top of the can body is in threaded connection with a can cover with a downward opening in the vertical direction. The can cover extends outwards in the vertical direction to form a thickened area, an operation inserting groove is formed in the thickened area, a film scratching assembly used for scratching the sealing film is arranged in the operation inserting groove, first anti-skid lines are arranged on the outer side wall of the can cover in a circumferential array mode, and internal threads are formed in one end of the operation inserting groove. An operator can directly rotate by hands, the surface of the can cover is provided with first anti-skid lines, and if the can cover is difficult to open by hands, an external rod body can be inserted into the operation slot, the operation slot is used as a fulcrum to drive the can cover to rotate, and acting force is applied by utilizing the lever principle, so that the can cover can be unscrewed in a labor-saving manner.

The application discloses a method for reducing vitrification of anther culture regenerated plants, and belongs to the technical field of plant tissue culture. The method comprises the following steps: inoculating anthers into a culture bottle containing a culture medium, covering a layer of breathable sealing film on the bottle mouth of the culture bottle, and tightening the breathable sealing film with an elastic band; then covering a layer of non-breathable sealing film on the outer layer of the breathable sealing film, and tightening the non-breathable sealing film with a rubber band; when embryoid is induced to be generated in 20-25 days, the covered non-breathable sealing film is removed, and only the breathable sealing film is left. The application has the following advantages: when the anthers are subjected to high-temperature treatment, the humidity in the culture bottle is not too low due to the covering of the non-breathable sealing film, and the survival of immature pollen is not affected; when embryoid is induced to be generated in 20-25 days, the non-breathable sealing film is removed, and only the breathable sealing film is left, so that the embryoid will not be vitrified due to excessive humidity; and the suitable humidity in the culture bottle can be realized only by covering or not covering the non-breathable sealing film, so that the workload of large-scale production of haploid plants is reduced.

The application provides a paper-plastic sealing film and a preparation method and application thereof, and relates to the technical field of sealing films.The preparation method of the paper-plastic sealing film comprises the following steps: S1, a single-component polyurethane adhesive is coated on one side of a paper base layer to form a first adhesive layer, a printing layer is first combined with the first adhesive layer, winding is performed, and first aging is performed; S2, a single-component polyurethane adhesive is coated on the other side of the paper base layer to form a second adhesive layer, a polyester film layer is secondly combined with the second adhesive layer, winding is performed, and second aging is performed; and S3, a two-component polyurethane adhesive is coated on the side of the polyester film layer which is not combined to form a third adhesive layer, a polyolefin film is thirdly combined with the third adhesive layer, winding is performed, and third aging is performed.The paper-plastic sealing film prepared by the method has the advantages of improved flatness, excellent composite strength, no delamination, and no bubbles after heat sealing.

The application discloses a silage preparation device, and belongs to the field of feed processing. The device comprises a discharge pipe, a temporary storage part with an open lower end arranged on one side of the discharge pipe, a limiting plate movably arranged on the lower end edge of the temporary storage part, a sealing drive mechanism arranged on the temporary storage part and used for pushing a sealing cover, a roller arranged on one side of the temporary storage part, a clamping mechanism used for dragging a sealing film on the roller to pass below the temporary storage part, a knife holder used for moving along the width direction of the sealing film after the sealing is completed, and a cutting knife arranged on the knife holder and used for cutting the sealing film, a transfer mechanism arranged on the discharge side of the discharge pipe and used for moving between the discharge pipe and the temporary storage part. The silage preparation device can seal the bag opening after the silage is filled into a bag.

The utility model provides a seasoning bottle sealing structure, which belongs to the technical field of sealing films and comprises a bottle body, a sealing film and a bottle cap, the sealing film is fixedly arranged at a bottle opening of the bottle body, the bottle cap is in close fit with the bottle opening, the sealing film comprises a bottom layer and a surface layer, the bottom layer is fixedly connected to the bottle opening, a plurality of discharging holes are formed in the bottom layer in a penetrating manner and form a discharging area, and the surface layer is arranged on the bottom layer. The surface layer is adhered to the upper portion of the bottom layer, the connecting strength of the surface layer and the discharging area is weaker than that of the surface layer and areas outside the discharging area, the surface layer is provided with a tearing line corresponding to the edge of the discharging area, a gasket matched with the sealing film is arranged in the bottle cap, the discharging area and the discharging holes are formed in the bottom layer of the sealing film, and the surface layer is adhered to the bottom layer, so that moisture prevention is facilitated during seasoning storage. When the seasoning bottle is used, seasoning can be poured out from the discharging hole only by unscrewing the bottle cap and tearing off the surface layer, the bottle cap is tightened after the seasoning bottle is used, and the discharging hole is sealed by the gasket, so that the seasoning is prevented from being affected with damp.

The invention provides a high-temperature-resistant hydrophobic sealing film for a plain foil box and a preparation method of the high-temperature-resistant hydrophobic sealing film, and relates to the field of packaging materials, the high-temperature-resistant hydrophobic sealing film comprises a PET layer, an aluminum foil layer and a heat sealing layer which are sequentially connected through an adhesive; the heat sealing layer comprises metallocene polyethylene, linear low-density polyethylene, an ethylene-vinyl acetate copolymer, maleic anhydride grafted polyethylene, a polyolefin elastomer, maleic anhydride grafted polyethylene wax, a composite antioxidant, an antibacterial agent and a water repellent agent; the hydrophobic agent is nano silicon dioxide with a core-shell structure. The sealing film has excellent high temperature resistance, heat sealability, hydrophobicity and antibacterial property.

The invention relates to beverage containers (1), in particular beverage pouches, with a front container wall (1a), a rear container wall (1b) and a bottom (8) made of a single- or multi-layer packaging film (2), comprising: a slit-shaped die-cut (3) provided in the upper region of the front container wall (1a), wherein the packaging film is completely or partially perforated by the die-cut (3) without particles of the packaging film (2) being punched out, a closure film (12) attached to the inside of the packaging film (2) of the front container wall (1a) by gluing, welding or sealing in order to cover the slit-shaped die-cut (3) on the inside, wherein the gluing, welding or sealingSealing between the inner surface of the packaging film and the closure film, a sealed area (4) is formed which encloses the die-cut (3) in the packaging film (2) on the inside, wherein the sealed area (4) between the closure film (12) and the packaging film (2) comprises an inner weld edge (5) and an outer weld edge (6), wherein the inner weld edge (5) encloses an area (7) in which the packaging film (2) is not glued, welded or sealed to the closure film (12) and in which the slit-shaped die-cut (3) is located.

The utility model provides a chest drainage tube fixing pasting film, and relates to the field of medical instruments, the chest drainage tube fixing pasting film comprises a pasting film body, the pasting film body comprises an absorption layer, and the absorption layer can be a super absorbent polymer or hydrogel and can absorb seepage and protect skin around a pipeline; a round hole is formed in the middle of the pasting film body, the drainage tube penetrates through the round hole, a gap is formed in the pasting film body, the gap starts from the outer edge of the outer end of the pasting film body, and the gap ends at the edge of the round hole; two connecting edges are formed at the position, provided with the crack, of the pasting film body, the two connecting edges are connected with sealing films, the sealing films are pasted on the skin of a patient firmly, the pasting film body further comprises a bonding layer and a bottom layer, the absorbing layer, the bonding layer and the bottom layer are sequentially connected, the bonding layer is made of medical pressure-sensitive adhesive, and the bottom layer is made of medical adhesive. According to the chest drainage tube, the problems that gauze dressing around the chest drainage tube is prone to falling off, seepage cannot be absorbed, and repeated dressing change is needed are solved.

The invention relates to the technical field of corn packaging equipment, in particular to high-end fresh corn box type modified atmosphere fresh-keeping packaging equipment which comprises a rack. The assembling box is movably connected with the rack, the assembling box comprises an upper box body and a lower box body, and the upper box body and the lower box body abut against each other to form a vacuum chamber; the objective table is provided with a profiling cavity, and the objective table is connected with the lower box body; the sealing pressing block is provided with a heating ring, the sealing pressing block is connected with the upper box body, and the sealing pressing block can move in the vertical direction; the gas control unit is used for extracting or feeding fresh-keeping gas into the vacuum chamber, the gas control unit is connected with the rack, and the gas control unit is connected with the assembly box; the sealing film feeding unit is located in the assembling box, and the sealing film feeding unit is used for enabling the sealing film to continuously pass through the upper portion of the objective table; the method has the effects that the damage to the corn is reduced while the fresh-keeping period of the corn is controlled, so that the product quality is guaranteed.

The utility model discloses a cutting structure for processing a non-sticky milk sealing film, which belongs to the technical field of non-sticky milk sealing film processing, and adopts the technical scheme that the cutting structure comprises a cutting machine structure, a connecting frame is arranged at the top of the cutting machine structure, a cutting component is arranged at the bottom of the connecting frame, a sliding rod is arranged on the front side of the cutting machine structure, and the sliding rod is arranged on the front side of the cutting machine structure. And the surface of the sliding rod is movably connected with a glue scraping mechanism, the inner wall of the glue scraping mechanism makes contact with the surface of the cutting assembly, and the problems that when an existing cutting structure for non-stick milk sealing film processing is used, glue left on the surface of the cutting assembly is not convenient to effectively clean, glue residues are prone to drying and hardening, the cutting precision and the service life of equipment are affected, and the cutting efficiency is high are solved. The problems that in the conveying process of the non-sticky milk sealing films, most of the non-sticky milk sealing films are lack of effective guiding devices, film materials are prone to deviation, the cutting size deviates, and the requirement for high precision of milk product packaging is not convenient to meet are solved.

The invention relates to the field of microporous breathable water-blocking sealing films, in particular to a degradable paraffin-bio-based polymer sealing film and a preparation method thereof.The degradable paraffin-bio-based polymer sealing film is prepared from, by mass, 90-100 parts of slurry, 90-100 parts of composite emulsion, 80-90 parts of polylactic resin, 2-4 parts of silicon dioxide and 1-3 parts of bio-based erucyl amide, the full-bio-based sealing film with excellent barrier property and mechanical strength is successfully prepared through an innovative bio-based composite formula and a multi-layer gradient structural design and by adopting a low-temperature emulsification and on-line cross-linking molding technology, and compared with the prior art, the full-bio-based sealing film not only realizes green regeneration of raw materials and complete degradability of the product, but also has the advantages of high barrier property and high mechanical strength. The problem of single performance of a traditional material is solved through optimization of the functional layer, meanwhile, large-scale production is facilitated through mild and efficient technological conditions, and the composite material has wide application prospects in the fields of food preservation, various laboratory utensils and the like.

This invention discloses an aluminum-plastic composite sealing film and its preparation method. The aluminum-plastic composite sealing film comprises, from top to bottom, a high-temperature resistant coating, an aluminum foil, a composite adhesive layer, a PET film, another composite adhesive layer, and a PP film. The preparation method includes: pre-compositing the PET film and PP film into a PET / PP pre-composite film; after the aluminum foil is unwound once, the upper surface is coated with a high-temperature resistant coating and flash-dried to form a semi-dry film state, and the lower surface is coated with composite adhesive and laminated with the PET / PP pre-composite film, so that the PET side is in contact with the composite adhesive; a single heating and drying process simultaneously cures the high-temperature resistant coating and the composite adhesive, followed by cooling and winding. The aluminum foil is unwound only once, eliminating mechanical damage caused by multiple tractions; the flash-dried semi-dry film balances the solvent evaporation rate on both sides, and the coatings on both sides are successfully cured in one drying process, resulting in symmetrical thermal stress and suppressed warping deformation; the temperature does not exceed 180℃, suppressing grain growth and maintaining excellent tensile strength and elongation; intermediate cooling is eliminated, shortening the production line and reducing equipment investment and energy consumption.

The invention discloses a multilayer breathable sealing film which comprises a sealing layer, an AL layer, a lower PET layer, a liquid-proof layer, a fiber layer, a PE foaming layer and an upper PET layer, the upper surface of the sealing layer is connected with the AL layer, the upper surface of the AL layer is connected with the lower PET layer, the upper surface of the lower PET layer is connected with the liquid-proof layer and the PE foaming layer, the fiber layer is connected with the upper surface of the liquid-proof layer, and the PE foaming layer is connected with the liquid-proof layer. The upper surfaces of the fiber layer and the PE foaming layer are connected with the lower surface of the upper PET layer, the sealing layer, the AL layer and the lower PET layer are located under the liquid-proof layer and provided with ventilation channels which are communicated with one another, the structure is reasonable, water and liquid can be prevented, corrosion can be prevented, the thickness of the fiber layer is controllable, the ventilation channels can be selected to be in different shapes or sizes according to different products, the ventilation capacity is controllable, and the ventilation effect is good. And the lower PET layer, the PE foaming layer and the upper PET layer are all provided with the notches and form the pull rings, so that compared with a traditional mode that a fiber layer is pulled open, burrs cannot be generated, and the appearance is more attractive after the fiber layer is pulled open.

The invention discloses an oral liquid bottle opening rapid sealing device and a using method thereof, and particularly relates to the technical field of oral liquid bottle sealing, the oral liquid bottle opening rapid sealing device comprises a base table, a conveying belt is embedded in the top surface of the base table, and a plurality of bearing bases are arranged on the upper surface of the conveying belt. According to the sealing device, by arranging the pressing and attaching assembly and the sealing assembly, supporting transverse plates on the two sides are pushed by a synchronous air cylinder to slide outside limiting rods, pressing rollers on the two sides are driven by the supporting transverse plates to synchronously move downwards, then a sealing film is driven to move downwards to be close to the position of a bottle opening till tight attaching is achieved, and then a sealing base is adjusted to move downwards through a transmission plate moving downwards; a circular sealing film is formed in the process that the cutting groove in the sealing base makes contact with the sealing film and is pressed downwards, and the sealing film and the annular position of the bottle opening are subjected to pressing heat sealing through the heating sealing ring, so that bonding is firm, the bottle opening is sealed rapidly, the bottle openings of a plurality of oral liquid bottles are subjected to heat sealing at a time, and efficiency is improved.

The utility model discloses a urine specimen preservation device in the technical field of urine specimen preservation, which comprises a cup body and a cup cover clamped with the cup body, the top of the cup body is clamped with an annular support table, the bottom of the support table is provided with an annular groove filled with preservative liquid, and the annular groove is provided with a sealing film; the supporting table is provided with safety holes and insertion holes in a staggered mode, the cup cover is fixedly provided with push rods inserted into the safety holes or the insertion holes, the cup body is rotationally connected with a swing rod, the swing rod is fixedly connected with a push plate in a sleeved mode, and the push rod is inserted into the insertion holes to push the push plate to rotate towards the sealing film and tear off the sealing film. According to the invention, the use safety can be improved.

The utility model relates to a large-capacity single reagent bottle and automatic liquid taking equipment, which comprises a supporting part and a sealing part, the supporting part comprises a reagent bottle body and a shell, the top of the reagent bottle body is provided with a bottle opening, the bottom of the reagent bottle body is provided with a concave groove, and the concave groove is arranged opposite to the bottle opening; the bottom of the reagent bottle body is inclined towards one side of the concave groove; the reagent bottle body is embedded in the shell; the sealing part comprises a bottle cap, a sealing film and a sealing film, the bottle opening is coated with the sealing film, and a *-shaped opening is formed in the sealing film; the bottle cap is buckled on the outer side of the bottle opening, and the bottle cap is arranged at the top of the sealing film; a notch is formed in the surface of the bottle cap and right faces the bottle opening, and the sealing film is arranged at the top of the bottle cap and covers the notch. According to the utility model, through the concave groove at the bottom of the reagent bottle body, a reagent is gathered in the concave groove and is sucked out by the reagent needle, so that the waste of the reagent is reduced; and secondly, the waste of the reagent is further reduced through the sealing film with the star-shaped structure.

The utility model relates to the technical field of transmission electron microscope ultrathin section batch dyeing field, more specifically it relates to a kind of transmission electron microscope sample preparation ultrathin section mass dyeing device, including working pipe and ear bulb, hollow formation containing cavity in working pipe, two ends are inlet end and dyeing end, there is elastic clamping element in containing cavity, the clamping cutout of its surface clamps net edge, dyeing end is tapered and shrinks and end size is less than elastic clamping element, inlet end is equipped with sealing assembly to isolate air, ear bulb is used to suck dyeing solution.Elastic clamping element is strip, multiple un-penetrating clamping cutouts are staggered distribution in two sides, there is guiding strip and elastic clamping element sliding fit in containing cavity inner wall.Sealing assembly includes rubber tube and sealing film to form double seal.Dyeing end has detachable filter cartridge, working pipe is transparent material and outer wrap tin paper light-shielding layer.The utility model reduces equipment cost and maintenance difficulty while ensuring mass dyeing quality.

The utility model belongs to the technical field of beverage packaging, and particularly relates to a honey and water separation and storage device which comprises a water containing bottle and a honey containing bottle, a bottle opening of the water containing bottle is in threaded connection with a bottle cap, a bottle bottom threaded seat is formed at the bottle bottom of the water containing bottle, and a first sealing film adheres to the outer side of a notch formed in the bottle bottom threaded seat. An external thread connector is formed at a bottle opening of the honey containing bottle and is in threaded connection with a bottle bottom threaded seat, a blocking ring is clamped between the water containing bottle and the honey containing bottle, a support is installed in the honey containing bottle, and a second sealing film is bonded between the external thread connector and the support. A first membrane breaking piece and a second membrane breaking piece are installed on the opposite end faces of the support and the bottle bottom threaded base respectively. Independent sealing and instant mixing of a water body and honey are achieved through cooperation of a simple threaded structure, the blocking ring and the sealing film; when mixing is not carried out, the blocking ring limits to prevent the sealing film from being damaged; when mixing is needed, the blocking ring is removed, the two bottle bodies are connected again, the sealing film is scratched by the film breaking piece, and rapid and uniform mixing is completed.

The invention discloses a cordyceps militaris cultivation device, and relates to the technical field of cultivation devices.The cordyceps militaris cultivation device comprises a base plate, a U-shaped frame is fixed to the upper end face of the base plate, a plurality of placement assemblies are arranged on the U-shaped frame, each placement assembly comprises a placement plate, the placement plates are movably arranged on the inner wall of the U-shaped frame, and a plurality of placement grooves are formed in the upper end faces of the placement plates; a culture tank is placed in each placing groove, the upper end of each culture tank is fixedly sleeved with a sealing film, a lifting plate is arranged over each placing plate, a plurality of mounting discs are fixed to the lower end face of the lifting plate, and a plurality of breathable needles are fixed to the lower end faces of the mounting discs; a plurality of first lifting mechanisms used in cooperation with the corresponding lifting plates are arranged on the U-shaped frame, and a plurality of lighting units are arranged on the U-shaped frame. When the sealing film puncturing device is used, the lifting plate, the mounting disc and the corresponding breathable puncturing needles can be driven by the first lifting mechanism to move downwards, the corresponding sealing film is punctured, and labor is saved during operation.

This utility model relates to a multi-cavity packaging puncture device, comprising a bottle body, a middle cover, a top cover, and a condiment separator cup. The condiment separator cup is inverted and detachably disposed in a first accommodating space, with its bottom contacting and fitting against the inner wall of the first accommodating space. The condiment separator cup has multiple condiment cavities, and its upper opening is sealed with a sealing film. The middle cover has a horizontally arranged support plate in its inner cavity, with multiple discharge holes on the support plate. The upper edge of each discharge hole has a puncture portion capable of puncturing the sealing film. The upper opening edge of the middle cover has an alignment groove that communicates with the inner cavity of the middle cover. The lower opening outer edge of the top cover has a first alignment block that matches the alignment groove, and the upper opening outer edge of the condiment separator cup has a second alignment block that matches the alignment groove. Both the first and second alignment blocks are located in the alignment groove, with the first alignment block positioned above the second alignment block.

The utility model discloses a packaging container with a double-layer film, which belongs to the technical field of packaging containers, and has the technical key points that the packaging container comprises a container body, solid components and liquid components of medicines or foods can be effectively separated and stored through the container body, and the situations of deterioration, reaction and the like caused by mutual contact of the solid components and the liquid components in the storage and transportation processes are avoided; and meanwhile, a user can selectively tear the second layer of sealing film or the first layer of sealing film according to own requirements, so that the solid medicine or food can be conveniently taken out, or the liquid medicine or food can be conveniently poured out, or the solid medicine or food and the liquid medicine or food can be conveniently mixed for use, and the selective use mode is convenient to use. Compared with a plurality of traditional independent packages, the multifunctional packaging box has the advantages that the use of packaging materials is reduced, the packaging cost is reduced, the generation of packaging wastes is reduced, the environment-friendly requirement is met, and the multifunctional packaging box is of a double-layer structure and has solid-liquid separation and multiple functions.

The utility model provides a kind of breathable packing container, belong to packing container technical field.It solves the technical problems such as the existing packing container easy to leak, cannot exhaust when adopting sealing film sealing etc..The upper side of the container main body in this breathable packing container is provided with opening part, and the sidewall of the container main body is provided with a plurality of first micro exhaust holes that are breathable but not water-permeable.The utility model is provided with the first micro exhaust hole that is breathable but not water-permeable on the container main body, hot steam can be discharged through the first micro exhaust hole, to avoid the internal pressure of packing container being too large and causing packing cover or sealing film to separate from packing container to cause leakage;Meanwhile, the first micro exhaust hole can be breathable but not water-permeable, and the liquid in the packing container will not cause leakage through the first micro exhaust hole.

The utility model belongs to the field of packing box sealing technology relates to plum packing box automatic sealing mechanical edge compression device. It is by the machine body, sealing film reel, sealing and buffer assembly. Machine body assembly realizes the buckling and separation of buckling seat, provides the basic action for sealing, sealing film reel assembly precision control sealing film movement, avoids waste and ensures the pattern accurate alignment, sealing assembly completes the sealing and film cutting of packing box, guarantees sealing integrity, buffer assembly guarantees the stable operation of device. Effectively solved the problem that plum packing box sealing faces. In traditional sealing mode, sealing film adjustment is inconvenient and difficult to accurately position, sealing effect is often unsatisfactory, and the equipment operation also lacks stability. But the device through the cooperation of each component, not only improves the accuracy of sealing film adjustment, but also significantly improves the sealing quality and equipment stability, and then all-round improves the sealing efficiency and packing quality of plum packing box.

The application provides a sealing film material composition based on pulse heat sealing, a sealing film and a preparation method thereof, and relates to the technical field of tobacco products and packaging materials. The sealing film material composition comprises: a heat sealing material, which comprises at least one of polyethylene, ethylene-vinyl acetate copolymer and metallocene polyethylene, and is used for melting flow under pulse heat sealing conditions to be integrated with the contact surface of cigarette paper, wherein the melting index of the heat sealing material is 5-30 g / 10 min, the Vicat softening point temperature is 50-100 DEG C, and the heat sealing starting temperature is 80-130 DEG C; a barrier protection material, which is stacked on the heat sealing material and comprises at least one of polyethylene terephthalate and polyamide, and is used for heat insulation and mechanical protection, wherein the melting point of the barrier protection material is greater than or equal to 150 DEG C.

The utility model relates to a plastic cup sealing film feeding mechanism which comprises a supporting frame and a plurality of sealing film storage bins arranged on the supporting frame, the sealing film storage bins are connected with the supporting frame through sealing film taking openings, and an overturning film taking mechanism is arranged on the lower portion of the supporting frame. The overturning film taking mechanism comprises a telescopic film taking plate and a plurality of film taking suction cups arranged on the film taking plate, the film taking suction cups correspond to the sealing film taking openings in a one-to-one mode, and the film taking plate and the film taking suction cups are driven by an overturning driving assembly to achieve 180-degree overturning operation. The device is simple in structure, reasonable in design, time-saving and labor-saving, the sealing film can be conveniently placed in the sealing film placing groove, and the working efficiency can be improved.