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CN-224224420-U - Forming device for environment-friendly PET plastic food packaging box

CN224224420UCN 224224420 UCN224224420 UCN 224224420UCN-224224420-U

Abstract

The utility model relates to the technical field of polymer materials, in particular to an environment-friendly PET plastic food packaging box forming device which comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a fixing box. According to the utility model, under the cooperation of the bottom plate, the fixed box, the lower die, the packing box body, the upper die, the injection molding opening, the elastic mechanism and the extrusion mechanism, the formed packing box can be effectively prevented from being clamped in one die, manual material taking by workers is avoided, the safety and the working efficiency of food packing box forming are improved, and the problems that the existing environment-friendly PET plastic food packing box forming device has the material returning function in the lower die, but because two dies are required for matching injection molding in food packing box forming, the formed food packing box has probability of being clamped in the die which is not provided with the material returning function, and the formed packing box needs to be manually taken out by workers are solved, so that the potential safety hazard exists and the working efficiency of food packing box forming is reduced.

Inventors

  • NIU WENHUA
  • LIU WEIJUAN

Assignees

  • 甘肃荣昇新材料科技有限公司

Dates

Publication Date
20260512
Application Date
20250611

Claims (7)

  1. 1. An environmental protection PET plastic food package box forming device, includes: a bottom plate (1); the packaging box is characterized in that the top of the bottom plate (1) is fixedly connected with a fixed box (2), the top of the fixed box (2) is fixedly connected with a lower die (3), the outer surface of the lower die (3) is sleeved with a packaging box body (4), the outer surface of the packaging box body (4) is sleeved with an upper die (5), and one side of the upper die (5) is provided with an injection molding opening (6); An elastic mechanism (7) for preventing the packing box body (4) from being clamped on the outer surface of the lower die (3) is arranged in the fixed box (2); The top of last mould (5) is provided with extrusion mechanism (8) that avoid packing carton body (4) card in last mould (5) inside.
  2. 2. The molding device of the environment-friendly PET plastic food packaging case as set forth in claim 1, wherein the elastic mechanism (7) comprises: The novel anti-theft device is characterized in that a rectangular plate (9) is arranged in the fixed box (2), sliding rods (10) are slidably connected to four corners of the rectangular plate (9), two ends of each sliding rod (10) are fixedly connected with the fixed box (2), four first springs (11) are arranged at the bottom of the rectangular plate (9), and the four first springs (11) are respectively sleeved on the outer surface of each sliding rod (10); The utility model discloses a lifting device for a rectangular box, including fixed box (2), lifting device, fixed box (2), lower mould (3), lifter (12) are located fixed connection in the top center of rectangular plate (9), the top of lifter (12) all runs through the inside of fixed box (2) and extension to lower mould (3), the centre of a circle department of lower mould (3) is provided with first material returning plate (13), first material returning plate (13) with lifter (12) fixed connection, the equal sliding connection in both sides of fixed box (2) has extrusion round pin (14), the bottom of extrusion round pin (14) all runs through fixed box (2) and extends to rectangular plate (9) department, extrusion round pin (14) with rectangular plate (9) fixed connection.
  3. 3. The molding device for the environment-friendly PET plastic food packaging case as claimed in claim 2, wherein pressing blocks (15) are arranged at the tops of the extrusion pins (14), and the pressing blocks (15) are fixedly connected with the upper die (5).
  4. 4. An environmentally friendly PET plastic food packaging box forming device as set forth in claim 1, wherein said pressing mechanism (8) comprises: The top of the upper die (5) is fixedly connected with a lifting plate (16), two sides of the lifting plate (16) are both connected with limiting rods (17) in a sliding manner, two ends of each limiting rod (17) are respectively and fixedly connected with the fixed box (2) and a portal frame (18), and two sides of the bottom of each portal frame (18) are respectively and fixedly connected with the bottom plate (1); The center of a circle department of last mould (5) is provided with second material returning plate (19), the equal fixedly connected with extrusion pole (20) in top both sides of second material returning plate (19), the top of extrusion pole (20) is all run through lifter plate (16) and extend to limiting plate (21) department, limiting plate (21) respectively with lifter plate (20) fixed connection, lifter plate (20) all with lifter plate (16) sliding connection, limiting plate (21) with all be provided with second spring (22) between lifter plate (16), two second spring (22) are overlapped respectively and are located the surface of lifter plate (20).
  5. 5. The molding device for the environment-friendly PET plastic food packaging case, as set forth in claim 4, characterized in that the top of the portal frame (18) is fixedly connected with two hydraulic cylinders (23), the telescopic ends of the hydraulic cylinders (23) penetrate through the portal frame (18) and extend to the lifting plate (16), and the lifting plate (16) is fixedly connected with the telescopic ends of the hydraulic cylinders (23).
  6. 6. The device for forming the environment-friendly PET plastic food packaging box is characterized in that a spiral cooling pipe (24) is fixedly connected to the inner wall of the lower die (3), conveying pipes (25) are fixedly connected to two ends of the cooling pipe (24), one ends, far away from the cooling pipe (24), of the conveying pipes (25) penetrate through the rectangular plate (9), the fixing box (2) and the portal frame (18) and extend to a joint (26), and the joint (26) is fixedly connected with the conveying pipes (25).
  7. 7. The molding device of the environment-friendly PET plastic food packaging case of claim 4, wherein one side of the portal frame (18) is fixedly connected with a control box (27) with a touch screen inside, and four corners of the bottom plate (1) are fixedly connected with universal wheels (28) with a braking function.

Description

Forming device for environment-friendly PET plastic food packaging box Technical Field The utility model relates to the technical field related to high polymer materials, in particular to an environment-friendly PET plastic food packaging box forming device. Background The packaging box is needed after the food is produced, the packaging mode is mainly used for packaging, the PET material is polyethylene terephthalate, dimethyl terephthalate and ethylene glycol are subjected to transesterification or terephthalic acid and ethylene glycol are subjected to esterification to synthesize dihydroxyethyl terephthalate first, then polycondensation reaction is carried out to obtain the packaging box, the PET plastic is used as the packaging box of the food, the packaging box is non-toxic and safe, when the packaging box is made of the PET plastic, the packaging box is usually processed and manufactured by a hot-press forming device, heat dissipation of a device formed by the hot-press forming device of the traditional plastic packaging box is in a form of a heat dissipation fan, the heat dissipation effect is not obvious enough, and the working efficiency of the forming device is reduced. The utility model patent with the bulletin number of CN222329020U discloses an environment-friendly PET plastic food packaging box forming device, which belongs to the related technical field of high polymer materials, and aims to solve the problem that the plastic packaging box in a die is inconvenient to take out materials after the forming is completed and the plastic packaging box is cooled in the prior art, so that the practicability is poor, and the environment-friendly PET plastic food packaging box forming device comprises a frame body, a die, a forming plate, a forming assembly and a taking assembly, wherein the die is arranged on the frame body, the taking assembly comprises a connecting ring, two transverse blocks, two supporting rods, two stressed pieces, two sliding blocks, two connecting blocks, a connecting rod, a taking plate and a spring, the shaping subassembly sets up on the support body, shaping board and shaping subassembly fixed connection, the support body is provided with spout and two recesses, two sliders all with spout sliding connection, two atress spare respectively with corresponding recess sliding connection, the atress spare is provided with to hold the face, go-between and shaping subassembly fixed connection, two horizontal pieces all with go-between fixed connection, support and hold the pole all with two horizontal pieces fixed connection, and two support and hold the pole respectively with corresponding support and hold the face contact, with this mode only with one power spare can accomplish the shaping simultaneously and get material processing, the practicality has been promoted. However, the patent still has the defect that the lower die is internally provided with the material returning function, but because the two dies are matched for injection molding in the process of forming the food packaging box, the formed food packaging box is possibly clamped in the die which is not provided with the material returning function, and the formed food packaging box needs to be manually taken out by a worker, so that potential safety hazards exist, and the working efficiency of forming the food packaging box is reduced. Disclosure of utility model In order to make up for the defects, the utility model provides an environment-friendly PET plastic food packaging box forming device, which solves the problems that the existing environment-friendly PET plastic food packaging box forming device provided in the background art has the material returning function in the lower die, but because two dies are matched for injection molding in food packaging box forming, the formed food packaging box has probability of being blocked in the die which is not provided with the material returning function, and needs to be manually taken out by workers, so that potential safety hazards exist and the working efficiency of food packaging box forming is reduced. The technical scheme of the utility model is as follows: The environment-friendly PET plastic food packaging box forming device comprises a bottom plate, wherein the top of the bottom plate is fixedly connected with a fixing box, the top of the fixing box is fixedly connected with a lower die, the outer surface of the lower die is sleeved with a packaging box body, the outer surface of the packaging box body is sleeved with an upper die, one side of the upper die is provided with an injection molding opening, an elastic mechanism for preventing the packaging box body from being clamped on the outer surface of the lower die is arranged in the fixing box, and an extrusion mechanism for preventing the packaging box body from being clamped in the upper die is arranged at the top of the upper die. Preferably, the elastic mechanism comprises a rectangular plate arranged i