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

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 discloses a high-speed continuous sealing and cutting device applied to a pillow packaging machine. An upper transmission eccentric disc (23) is installed at both ends of an upper cutter shaft, and a lower transmission eccentric disc (23) is installed at both ends of a lower cutter shaft. disc (22); between its input belt assembly and output belt assembly, it is connected successively through the input displacement transmission rod (4), displacement eccentric seat (12), and output displacement transmission rod (9). On the control shaft (24), the displacement control shaft is connected with the main drive assembly. The invention makes the upper transmission eccentric disk and the lower transmission eccentric disk rotate eccentrically, and then drives the upper sealing and cutting knife and the lower sealing and cutting knife, as well as the heat-sealed pillow-type packaging bag between them, to first shift to the left and then to the right Displace a certain distance and keep heat sealing for a certain period of time to ensure the heat sealing effect. Therefore, the overall sealing and cutting speed can be improved, reaching more than 180 pieces per minute, and the transportation is fast and smooth, and the production efficiency is high.

The invention discloses a mobile conveying assembly applied to a high-speed sealing and cutting device of a pillow packaging machine, comprising a frame (1), an input belt (2), and an output belt (11). Between the bottom and the bottom are connected successively through the input displacement transmission rod (4), the displacement eccentric seat (12), and the output displacement transmission rod (9). The displacement eccentric seat is installed on the displacement control shaft (24), and the displacement control shaft (24) Connect with the main drive assembly. In the present invention, the input displacement transmission rod and the output displacement transmission rod are driven by the displacement eccentric seat, so that the input belt and the output belt are firstly displaced to the left, and then to the right to make a lateral displacement, so as to realize the movable type of conveying to match the continuous sealing and cutting of the movement. , keep the heat seal for a certain period of time to ensure the heat seal effect. In this way, the overall sealing and cutting speed can be improved, reaching more than 180 pieces per minute, and the transportation is fast and smooth, and the production efficiency is high.

The invention discloses a special membrane for a disposable bioreactor, which comprises an ultra-low-density polyethylene layer placed in the innermost layer of the membrane body, a low-density polyethylene layer placed in the outermost layer, and an ethylene / ethylene layer in the middle of the membrane body. An alcohol copolymer layer, and an adhesive layer arranged between two adjacent layers. The special membrane obtained for disposable bioreactors has high strength, good stability, and excellent pollution resistance, and can block the penetration of microorganisms, pathogenic bacteria, and sludge. The preparation method of the special film for the disposable bioreactor of the present invention ensures the smooth progress of the plasticizing reaction by controlling the head temperature of the film blowing machine to produce a special film with excellent performance. The preparation method is simple and efficient, and the disposable bioreactor is reduced The use cost of the reactor has significant economic benefits.

The present disclosure relates to a hand-held heat-sealing gun and a heat-sealing device. The hand-held heat-sealing gun includes: a housing with a grip portion and a gun head; a heat-sealing mechanism including a support, an electric push rod, and a fixed pressure block and Movable pressing block, the support is installed on the head of the gun, the electric push rod is located inside the shell and fixed on the support, the fixed pressing block is fixed on the support and exposed to the gun head, the movable pressing block is movably set on the support, electric The push rod drives the movable pressing block to move to switch between the release position and the clamping position; the high-frequency generator is fixedly arranged in the casing and is electrically connected to the fixed pressing block and the movable pressing block respectively to heat the moving pressing block and the fixed pressing block. block; and, a rechargeable battery fixedly arranged in the grip and used for powering the high-frequency generator and the electric push rod. Through the above technical solution, the hand-held heat sealing gun provided by the present disclosure is easy to operate and has a stable heat sealing effect.

The invention discloses a production process of degradable wet wipes, wet wipes, and a packaging film for the wet wipes. The wet wipe base fabric of the invention adopts degradable wood pulp, polylactic acid staple fiber, Viscose staple cellulose fibers are formed by wet laying and hydroentanglement curing and drying technology, and then dipping or spraying the solution to form a wet tissue product with a certain amount of liquid. The wet tissue in the present invention is degradable. In addition, in the present invention, a double-layer PE film is also proposed for the packaging of the degradable wet wipes as its envelope. The surface layer of the double-layer film PE is biaxially stretched PE, and the inner layer is a metallocene modified PE film. Polyethylene can be recycled due to its single thermoplastic material. The present invention obtains degradable wet wipes with good mechanical properties by screening suitable cellulose fiber types and proportions, and optimizing the fiber opening and carding process; meanwhile, the packaging film used for the wet wipes meets the requirements of barrier performance and heat-sealing performance. At the same time, it can be recycled and used, which meets environmental protection requirements.

The invention discloses a plastic bag heat sealing machine, which comprises a base and a lens. A heat seal base is arranged above the base; a heat seal cutter is slidably connected into the heat seal base, and comprises a cutter body and a cutter bit; a permanent magnet is arranged on the cutter body; an installation hole is further formed in the side wall of the cutter body; a light source is arranged at the installation hole part; an obliquely formed light transmission hole is further formed in the cutter body; the center of the light source is located on a central axis of the light transmission hole; an electromagnetic block repulsive to the permanent magnet is further arranged on the heat seal base; a magnet exciting coil is sleeved on the electromagnetic block; a plurality of optoelectronic switches are further arranged on the heat seal base, and are electrically connected with resistances with different resistance values; the resistance values of the resistances corresponding to the optoelectronic switches are increased along with the increase of the distances between the optoelectronic switches and the heat seal base; and the resistances are connected in parallel so as to be electrically connected with the magnet exciting coil. According to the scheme provided by the invention, when plastic bags with different thicknesses are heat-sealed, heat sealing pressure acted on the plastic bags can be automatically adjusted.

The invention discloses a packaging machine with a double end seal synchronous seal cutting system. A rack is included and provided with a feeding conveying belt, a discharging conveying belt and a double end seal synchronous seal cutting mechanism located between the feeding conveying belt and the discharging conveying belt. The double end seal synchronous seal cutting mechanism comprises a pairof servo motors arranged on the rack, the servo motors drive corresponding eccentric discs to rotate, and the eccentric discs drive corresponding upper tool shafts and corresponding lower tool shaftsto rotate, wherein one upper tool shaft drives a first upper seal tool to reciprocate, the other upper tool shaft drives a second upper seal tool to reciprocate, one lower tool shaft drives a first lower seal tool to reciprocate, and the other lower tool shaft drives a second lower seal tool to reciprocate. Due to adoption of the above structure, on the premise that the heat seal effect of the packaging machine is guaranteed, the running speed of the whole machine is increased, conveying is rapid and smooth, the production efficiency is improved, and the packaging effect is more excellent.