35results about How to "Guaranteed heat sealing performance" patented technology

The invention relates to a metal tank packing material and a manufacturing method thereof, which comprises the following steps that: (a) a pattern after the design and the plate making is printed on basic material, the basic material adopts a two-way stretch BOPP or a two-way stretch BOPET; (b) solvent-free adhesive is applied on the basic material, the applied quantity is 1.2 to 1.5 g / m <2>; (c) the basic material is preheated, bonded and compounded; the preheating temperature is 50 to 65 DEG C, a polypropylene mixed film or a polyethylene mixed film is bonded and compounded on the basic material; the compound speed is 90 to 120 m per minute; (d) the laminating and the recovery-furl are performed; (e) the preheating temperature is 40 to 60 DEG C, the delivery-furl tension is 2 to 10 kg, the recovery-furl tension is 15 to 25 kg; (f) the curing is carried out; (g) the cutting and the packing are performed. The method makes the direct printing on the packing material, as a standard film, the packing material is directly packed on the unprinted metal tank for packaging, and has the effect of realistic metal sense.

The invention discloses a heat-seal interface easily-torn PE thin film, which is formed by coextruding a corona layer, a middle layer and an inner layer, wherein the corona layer contains low-densitypolyethylene resin and high-density polyvinyl resin; the middle layer contains low-density polyethylene resin and high-density polyvinyl resin; the inner layer contains coated low-density polyethylene, high-density polyvinyl resin, polybutylene resin and polyester modified organosilicone. The coated low-density polyethylene is added into the inner layer, so that the thin film has good heat seal property, and the polyester modified organosilicone added into the inner layer has heat seal property, so that the heat-seal intensity value of the thin film is controlled within certain range and is easily torn off a heat-seal surface without complete damage or filament raising, and therefore, the PE thin film is suitable for being used as an easily-torn seal cup lid film, easily-torn mask productpackages and easily-torn medical dressing packages.

The invention discloses a temperature compensation method for a buffering air cushion machine. In the temperature compensation method, the temperature value T of a heating pipe is set, the starting temperature correction value TK is set according to the temperature of a bottom plate when the buffering air cushion machine is started, the room temperature correction value TS is set according to the detected indoor temperature of the position where the buffering air cushion machine is located, and the running time correction value TY of the buffering air cushion machine can be obtained in real time according to the compensation function; and in the actual operation, on the basis of the temperature value T of the heating pipe, at least one of the starting temperature correction value TK, the room temperature correction value TS and the running time correction value TY of the buffering air cushion machine can be offset, heating is stopped after the buffering air cushion machine controls the heating pipe to conduct heating till the sum of T and at least one of the TK, the TS and the TY is achieved, and therefore the situation that when the buffering air cushion machine conducts heat sealing on an air cushion film, the heat sealing effect is affected by the room temperature, the temperature of a heating block during starting, the running time of the buffering air cushion machine and other factors can be avoided, and the heat sealing effect of the air cushion film is ensured.

The invention relates to a thermal sealing device for two ends of a welding rod packaging production line packaging bag. The thermal sealing device comprises a rack, a conveying mechanism, a film discharge mechanism, a film feed mechanism, a material push mechanism and a longitudinal thermal sealing tool mechanism, and the conveying mechanism is horizontally arranged on the rack. The thermal sealing device is characterized in that two symmetric transverse thermal sealing tool mechanisms are further arranged on the rack, the two transverse thermal sealing tool mechanisms are arranged on the two sides of the conveying direction of the conveying mechanism, each transverse thermal sealing tool mechanism is composed of a thermal sealing support, an upper thermal sealing tool air cylinder, an upper thermal sealing tool and a thermal sealing bottom plate, the upper thermal sealing tool air cylinders are arranged on the rack through the thermal sealing supports, the upper thermal sealing tools are arranged on the lower portions of push rods of the upper thermal sealing tool air cylinders, and the thermal sealing bottom plates are fixedly arranged on the two sides of the conveying mechanism. The device is scientific and reasonable in structural design, and has the advantages of being stable and reliable in machining, high in efficiency and good in quality, leakproofness of welding rod paper box plastic bag package is guaranteed, and the thermal sealing device is high in innovativeness.

The invention discloses a high-speed displacement type sealing and cutting assembly applied to a pillow type packaging machine. The high-speed displacement type sealing and cutting assembly comprises a machine frame (1), an upper cutter shaft (21) and a lower cutter shaft (20), wherein upper transmission eccentric discs (23) are arranged at the two ends of the upper cutter shaft, and lower transmission eccentric discs (22) are arranged at the two ends of the lower cutter shaft. The upper transmission eccentric discs and the lower transmission eccentric discs respectively do eccentric rotation, further, a sealing and cutting upper cutter, a sealing and cutting lower cutter and pillow packaging bags hot sealed between the sealing and cutting upper and lower cutters are driven to respectively and firstly move towards the left side and then move towards the right side for a certain distance, and the hot sealing is kept and lasts for a certain time for ensuring the hot sealing effect. Therefore the integral sealing and cutting speed can be accelerated, the packaging speed can reach more than 180 pieces per minute, in addition, the conveyance is fast and smooth, and the production efficiency is high.

The invention discloses a full-automatic continuous four-side sealing packaging machine. The full-automatic continuous four-side sealing packaging machine is characterized in that a heat sealing mechanism comprises a heat sealing frame and a heat sealing assembly; a second servo motor, a synchronous pulley I and a synchronous pulley II are arranged on the heat sealing frame; a synchronous belt II is wound on the synchronous pulley I and the synchronous pulley II; the second servo motor and the synchronous pulley I are linked; linear rails are further arranged on the heat sealing frame; the heat sealing assembly is provided with a top plate and a bottom plate; an upper module and a lower module are arranged between the top plate and the bottom plate; the bottom plate is mounted on sliding blocks of the linear rails; the synchronous belt II is linked with the bottom plate; a first servo motor is further fixedly mounted on the bottom surface of the bottom plate; a spindle is arranged on the top surface of the bottom plate; a plurality of eccentric wheels are arranged on the spindle at equal intervals; the first servo motor drives the spindle through a synchronous belt I; the upper module is connected with cylinders arranged on the top plate; and rollers which correspond to the eccentric wheels and are in contact with the eccentric wheels are arranged on the bottom surface of the lower module. According to the full-automatic continuous four-side sealing packaging machine, structure is simple, arrangement is convenient, the heat sealing effect is good, and continuous operation of the entire machine is achieved.

The invention discloses a method for fabricating a plastic lining steel tee joint pipe fitting and belongs to the technical field of composite steel tube design and manufacturing. The method for fabricating the plastic lining steel tee joint pipe fitting is applicable to various calibers and can guarantee the heat seal effect of plastic lining layers to the greatest extent. The fabrication method comprises the following steps of firstly, preparing a parent tube which constitutes a branch tube and a branch tube extension section; then welding the parent tube to a branch tube joint of a straight tube; subsequently, conducting integrated hot melting plastic lining on the straight tube and the parent tube, and meanwhile lining a composite layer transitional structure out of the tail end of a connection structure of the parent tube; then, installing the branch tube extension section where the plastic lining layer is completed to the tail end of the parent tube through the connection structure, and sealing the plastic lining layer at the inner side of the branch tube extension section and the plastic lining layer at the inner side of the parent tube through the composite layer transitional structure. By the mode, the plastic lining composition work for a plastic lining composite tee joint steel tube is completed.

The invention provides a biodegradable high-barrier paper-plastic packaging composite film and a preparation method thereof. The biodegradable high-barrier paper-plastic packaging composite film sequentially comprises an ink layer, a paper layer, a bonding layer, an aluminized layer and a PLA layer from outside to inside, wherein the PLA layer is modified through a thermoplastic elastomer, and after modification, the temperature resistance and toughness of the PLA layer can be improved, the heat sealing performance of the PLA layer is guaranteed, and the packaging requirements of different contents and different weights are met; and the aluminized layer can ensure that a final finished product has good barrier property and prolong the shelf life of the contents. The biodegradable high-barrier paper-plastic packaging composite film has the advantages of being exquisite in printing appearance, good in display effect and the like, is made of degradable materials, can be biodegraded after being used, and is free of pollution to the environment.

The invention discloses a highly wear-resistant biodegradable material for a mobile phone shell. The highly wear-resistant biodegradablematerial comprises the following raw materials in parts by weight: 10-20 parts of straw, 50-70 parts of polylactic acid, 0.5-3 parts of a titanate coupling agent, 3-10 parts of a wear-resistant additive, 3-10 parts of a flame retardant, 3-10 parts of an antibacterial agent, and 1-4 parts of graphene. A preparation method comprises the following steps: washing, oven-drying and crushing the straw; adding the wear-resistant additive, the flame retardant, and theantibacterial agent to the treated straw short fibers for stirring and mixing treatment; then adding the titanate coupling agent for coupling treatment; and adding polylactic acid and graphene to thecoupling treated material, sending the mixture into a mixing stirrer for blending and kneading, and directly producing the highly wear-resistant biodegradable material after the kneading treatment iscompleted. The product can be automatically degraded under natural conditions, the product is environmentallyfriendly, safe, and non-toxic, and has good wear resistance, softness, antistatic ability and antibacterial ability, and all performance indicators reach national standards.

The invention discloses full-automatic multi-specification sauce bag filling equipment and a production process, and belongs to the field of sauce bag filling. The full-automatic multi-specification sauce bag filling equipment comprises a feeding unit, a quantifying unit, a filling unit and a detecting unit, wherein the feeding unit comprises an inclined conveying frame and a multi-layer storage tower, an upper-layer box shell is mounted below the multi-layer storage tower, the upper-layer box shell is connected with the multi-layer storage tower, and an upper mounting plate and a lower lifting plate are mounted in the upper-layer box shell; the upper mounting plate is fixedly connected with the upper-layer box shell, a rotating disc is mounted in the upper mounting plate, a material storage cavity is formed in the rotating disc, a material storage barrel is mounted on the lower lifting plate, the material storage barrel is mounted in the material storage cavity, and a closing piece is mounted in the material storage barrel; the closing piece is suitable for limiting the size of materials stored in the material storage cavity and the material storage barrel, a center shaft is mounted in the rotating disc, and a first driving piece is mounted outside the center shaft and suitable for driving the center shaft to rotate. According to the full-automatic multi-specification sauce bag filling equipment, the problems that solid materials are quantified and the practicability is poor due to the fact that the material storage space is single are solved.

The invention discloses a transverse sheet supplementing device of a bag making machine. The device comprises a front wall plate and a movable seat, and a traction lower rubber roller and a traction upper pressing roller are arranged between side plates; an upper cutter is arranged between the two side plates, wherein a lower cutter is arranged below the upper cutter; an upper sealing module is installed on the bottom surface of an upper mounting rod, and a lower sealing module is installed on a lower mounting rod; one short rod is provided with an adjusting screw, wherein one end of the adjusting screw is provided with a first adjusting hand wheel; one end of an adjusting hand wheel shaft is fixedly provided with a second adjusting hand wheel, wherein a gear is fixedly installed on the adjusting hand wheel shaft. According to the sheet supplementing device, adjusting can be carried out in the front, rear and transverse directions, so that a feeding position of a main film material canbe accurately reached; and adjusting is flexible, the traction upper pressing roller can be conveniently controlled, and meanwhile adjusting is convenient, and heat sealing effects are good; and in addition, by adjusting the front and rear positions of the lower cutter, the knife edge of the lower cutter is aligned with the knife edge of the upper cutter, and therefore cutting effects of sheet supplementing materials are guaranteed.

The invention belongs to the technical field of packaging materials, and particularly relates to a high-performance light-weight PE heat shrinkage film and a preparation method thereof. The PE heat shrinkage film comprises a corona layer, a first secondary outer layer, a middle layer, a second secondary outer layer and a heat sealing layer, wherein the formula of the corona layer is basically the same as that of the heat sealing layer, and the formula of the first secondary outer layer is the same as that of the second secondary outer layer. According to the invention, a five-layer film blowing symmetrical structure formula is adopted, a particle formula and process parameters are reasonably designed, so that the performance difference caused by thickness reduction is made up, the packaging requirements of customers are met while the weight is reduced, and the whole packaging material has the advantages of being small in thickness, high in transverse and longitudinal shrinkage rate, high in clamping force, free of springback, high in tensile strength and high in puncture resistance and tearing resistance; the optical performance is good; and the film has the advantages of moderate and stable dynamic and static friction coefficients, favorable thickness uniformity, favorable flatness, favorable printing adaptability and favorable heat-sealing stability and is suitable for automatic packaging equipment, and a packaged product has favorable fitting property and neat bull eyes.

The invention provides a high-speed continuous sealing and cutting device applied to a pillow type packaging machine. The two ends of an upper cutter shaft are provided with upper transmission eccentric discs (23), the two ends of a lower cutter shaft are provided with lower transmission eccentric discs (22), an input belt assembly and an output belt assembly are connected sequentially through an input displacement transmission rod (4), a displacement eccentric seat (12) and an output displacement transmission rod (9), the displacement eccentric seat is arranged on a displacement control shaft (24), and the displacement control shaft is connected with a main driving assembly. The upper transmission eccentric discs and the lower transmission eccentric discs respectively do eccentric rotation, further, a sealing and cutting upper cutter, a sealing and cutting lower cutter and a pillow type packaging bag hot sealed between the sealing and cutting upper and lower cutters are driven to firstly move towards the left side and then move towards the right side for a distance, and the continuous hot sealing is kept and lasts for a certain time for ensuring the hot sealing effect. Therefore the integral sealing and cutting speed can be accelerated, the packaging speed can reach more than 180 pieces per minute, in addition, the conveyance is fast and smooth, and the production efficiency is high.