8 results about "Self-heating food packaging" patented technology

The invention provides a packaging box capable of reheating food, and belongs to the technical field of food packaging boxes. The technical problem that an existing self-heating food box cannot adapt to take-out and take-out scenes is solved. According to the packaging box capable of reheating the food, a middle box is placed in a bottom box, a cavity used for containing a heating bag is formed between the lower side face of the middle box and the bottom of the bottom box, a turned edge protruding outwards is formed on the upper portion of the middle box, the turned edge and the upper edge of the bottom box are assembled in a loose mode, and a top cover is detachably connected with the edge of the middle box in a sealed mode. A containing cavity used for containing food is defined by the top cover and the middle box, a lower vent hole capable of communicating the containing cavity with the outside is formed in the top cover, and an anti-leakage plug for preventing soup from leaking is installed at the position of the lower vent hole. The device has the advantages of being low in gravity center, stable in placement, free of leakage, safe in heating and the like, and can well adapt to take-out and take-out use scenes.

This utility model discloses a self-heating pack structure and a self-heating food packaging box, relating to the field of self-heating packaging boxes. It includes a heating basin containing a food container, and further includes a water injection mechanism disposed on the heating basin. The water injection mechanism includes a water injection cavity formed in the side wall of the heating basin, and several water injection ports extending through the water injection cavity are formed at the top of the heating basin. Several overflow holes extending through the water injection cavity are also formed inside the heating basin. This allows the food container and food to be placed in the heating basin first, and then cold water is injected from the water injection tank to fill the water injection cavity. Excess cold water in the water injection cavity then flows into the heating basin through the overflow holes. This avoids the need to add water first to react with the heating pack before quickly placing the food container and food into the heating basin, thus improving the safety of using the heating basin and food container.

The utility model relates to the technical field of self-heating food, and provides a heating bag for self-heating food, which comprises a bag body and a self-heating bag which is arranged in the bag body and emits heat when encountering water. The bag body is defined by two plastic layers, a first indentation is formed between the two plastic layers through hot pressing, and the interior of the bag body is divided into a first cavity and a second cavity by the first indentation; the first cavity is filled with water, and a self-heating bag is arranged in the second cavity. According to the heating bag for the self-heating food, the two cavities in the bag body are arranged in a separated mode, when the first cavity is squeezed to enable the first indentation to be torn, water in the first cavity can flow into the second cavity and infiltrate the self-heating bag, a heating agent in the self-heating bag reacts with the water to generate heat, the step that a user adds water into the heating bag is simplified, operation is simple, and the heating bag is convenient to use. The use is convenient.

The utility model provides a self-heating food packaging box forming device which is provided with a cutting panel and a cutting opening, and a bearing cylinder is arranged below the cutting opening. The bearing cylinder is arranged in the direction perpendicular to the cutting panel. A bearing piece is arranged in the bearing barrel and used for bearing the packaging boxes and slides downwards in the length direction of the bearing barrel along with increase of the number of the packaging boxes. The self-heating food packaging box collecting device has the advantages that the packaging boxes can be collected conveniently, then the packaging boxes can be blown and inspected conveniently, and the production efficiency of the self-heating food packaging boxes can be improved.

The present application relates to the field of chemical heat generating material, in particular to a built-in self-heating food heating agent and a preparation method thereof.The built-in self-heating food heating agent provided by the present application comprises a solid phase reaction agent, the solid phase reaction agent comprises 65-85 parts of magnesium powder, 10-30 parts of iron powder and 2-10 parts of modified auxiliary agent by mass fraction; a liquid phase reaction agent, the liquid phase reaction agent comprises 200-300 parts of a salt aqueous solution with a concentration of 5%-20% w / w by mass fraction.By separating the hygroscopic electrolyte salt which is easy to cause reaction from the solid phase reaction agent completely, the solution is separately packaged.The solid phase reaction agent is only a mixture of magnesium powder, iron powder and modified auxiliary agent, and is not sensitive to air humidity without contacting the salt solution, which fundamentally eliminates the internal micro-battery reaction caused by salt moisture absorption, completely eliminates the safety hazards such as spontaneous heating, bag swelling and explosion during storage and transportation, and significantly prolongs the shelf life of the product.

This invention discloses a blow-molded box for self-heating food, a production mold, and a production method, relating to the field of blow-molded box and production technology. This blow-molded box for self-heating food is used to hold food to be heated or a heating pack, wherein the heating pack is a water-activated heating pack. The blow-molded box has a raised water level indicator, and a temperature-sensitive color-changing layer is provided on the raised water level indicator. By adding a temperature-sensitive color-changing layer to the raised water level indicator, the color can be changed within a range of 0-20℃, allowing the operator to select the corresponding amount of water to add. For example, selecting a temperature-sensitive color-changing layer that changes from blue to red within the 0-20℃ range allows water to be added to submerge the upper edge of the water level line (the temperature-sensitive color-changing layer) when the color-changing layer is reddish, and water to submerge the lower edge of the water level line (the temperature-sensitive color-changing layer) when the color-changing layer is bluish, ultimately achieving precise heating of the food.

The utility model relates to self -heating food vacuum packaging device technical field, and disclose a kind of self -heating food vacuum packaging device, including mobile seat, the top left and right sides of mobile seat are uniformly provided with sleeve, the inner wall left side of mobile seat is provided with the firm component extending to its right side at one end, two the sleeve between bearing plate is provided with. The self -heating food vacuum packaging device, by the double-shaft servo motor of driving component drive rotating rod and second bevel gear are rotated, drive first bevel gear and first threaded rod rotation, threaded sleeve is vertically lifted in sleeve guide slot, to adjust the height of vacuum air suction head, the design can quickly adapt to different height packaging bag, without manual pad higher auxiliary operation, significantly improve production efficiency, especially applicable to the scene of simultaneously producing large specification self -heating hot pot packaging and small specification instant rice packaging, improve the practicability of device, facilitate staff use.

The utility model provides a self-heating food sealing device. The utility model relates to a self-heating food sealing device which comprises a machine frame fixedly arranged on the horizontal ground. The feeding assembly is arranged on the rack and located at one end of the rack; the knurling assembly is arranged on the rack and located at the end close to the feeding assembly; the driving assembly is arranged on the rack and located on one side of the knurling assembly; the gluing assembly is arranged on the rack and located on one side of the driving assembly; the winding assembly is arranged on the rack and located at the end, opposite to the feeding assembly, of the rack. The self-heating food sealing equipment can be used for producing plastic packaging bags used for self-heating food outer packaging, the yield is large, the efficiency is high, and products have the advantages of being high in structural strength and good in sealing performance.