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CN-224224353-U - PET foaming sheet secondary foaming device

CN224224353UCN 224224353 UCN224224353 UCN 224224353UCN-224224353-U

Abstract

The utility model belongs to the field of PET (polyethylene terephthalate) foaming sheet production equipment, and particularly relates to a PET foaming sheet secondary foaming device which comprises a frame body and a traction system, wherein a first support, a second support, a third support and a fourth support are sequentially and fixedly connected on the frame body from left to right, a first upper heating roller and a first lower heating roller are rotatably connected on the first support, a second upper heating roller and a second lower heating roller are rotatably connected on the second support, a third upper heating roller and a third lower heating roller are rotatably connected on the third support, an upper cooling roller and a lower cooling roller are rotatably connected on the fourth support, and the first upper heating roller, the first lower heating roller, the second upper heating roller, the second lower heating roller, the third upper heating roller, the third lower heating roller and the lower cooling roller are all connected with the traction system. The PET foaming sheet secondary foaming device disclosed by the utility model can be used for carrying out secondary foaming on the PET foaming sheet, so that a thicker sheet product with a flat surface is obtained, and the production requirement is effectively met.

Inventors

  • ZHANG JIANQUN
  • LI YONG
  • MENG FANMIN
  • WANG QINGMENG

Assignees

  • 山东通佳机械有限公司

Dates

Publication Date
20260512
Application Date
20250731

Claims (6)

  1. 1. The PET foaming sheet secondary foaming device is characterized by comprising a frame body (1) and a traction system, wherein a first support, a second support, a third support and a fourth support are sequentially and fixedly connected to the frame body (1) from left to right, a first upper heating roller (8) and a first lower heating roller (6) are rotatably connected to the first support, a second upper heating roller (16) and a second lower heating roller (15) are rotatably connected to the second support, a third upper heating roller (20) and a third lower heating roller (31) are rotatably connected to the third support, an upper cooling roller (22) and a lower cooling roller (24) are rotatably connected to the fourth support, and the traction system is connected to the first upper heating roller (8), the first lower heating roller (6), the second upper heating roller (16), the second lower heating roller (15), the third upper heating roller (20), the third lower heating roller (31) and the lower cooling roller (24).
  2. 2. The PET foam sheet secondary foaming device according to claim 1 is characterized in that a sheet guiding roller (7) is rotatably connected to the upper end of the frame body (1), and the sheet guiding roller (7) is positioned on the left side of the first support.
  3. 3. The secondary foaming device for PET foaming sheets according to claim 1 or 2, wherein the traction system comprises a primary traction mechanism, a secondary traction mechanism and a tertiary traction mechanism, the primary traction mechanism is connected with the first upper heating roller (8), the first lower heating roller (6), the second upper heating roller (16) and the second lower heating roller (15), the secondary traction mechanism is connected with the third upper heating roller (20) and the third lower heating roller (31), and the tertiary traction mechanism is connected with the lower cooling roller (24).
  4. 4. The PET foaming sheet secondary foaming device according to claim 3, wherein the primary traction mechanism comprises a primary motor (2) fixedly connected to the frame body (1), a primary tensioning wheel (3) and a primary guide wheel (10) rotatably connected to the frame body (1), a first upper driving wheel (9) fixedly connected to the first upper heating roller (8), a first lower driving wheel (5) fixedly connected to the first lower heating roller (6), a second lower driving wheel (18) fixedly connected to the second lower heating roller (15) and a second upper driving wheel (17) fixedly connected to the second upper heating roller (16), a primary transmission belt (4) is connected to an output wheel of the primary motor (2), and the primary transmission belt (4) sequentially bypasses the primary tensioning wheel (3), the first lower driving wheel (5), the first upper driving wheel (9), the second lower driving wheel (18), the second upper driving wheel (17) and the primary guide wheel (10) and returns to an output wheel of the primary motor (2) to form a closed loop.
  5. 5. The PET foaming sheet secondary foaming device according to claim 3, wherein the secondary traction mechanism comprises a secondary motor (12) fixedly connected to the frame body (1), a secondary tensioning wheel (11) and a secondary guide wheel (14) rotatably connected to the frame body (1), a third lower driving wheel (19) fixedly connected to a third lower heating roller (31) and a third upper driving wheel (21) fixedly connected to a third upper heating roller (20), a secondary driving belt (13) is connected to an output wheel of the secondary motor (12), and the secondary driving belt (13) sequentially bypasses the secondary tensioning wheel (11), the third lower driving wheel (19), the third upper driving wheel (21) and the secondary guide wheel (14) and returns to an output wheel of the secondary motor (12) to form a closed loop.
  6. 6. The PET foaming sheet secondary foaming device according to claim 3, wherein the three-stage traction mechanism comprises a three-stage motor (27) fixedly connected to the frame body (1), a three-stage tensioning wheel (25) rotatably connected to the frame body (1) and a third driving wheel (23) fixedly connected to the lower cooling roller (24), a three-stage driving belt (26) is connected to an output wheel of the three-stage motor (27), and the three-stage driving belt (26) sequentially bypasses the three-stage tensioning wheel (25) and the third driving wheel (23) and returns to an output wheel of the three-stage motor (27) to form a closed loop.

Description

PET foaming sheet secondary foaming device Technical Field The utility model relates to a secondary foaming device for a PET (polyethylene terephthalate) foaming sheet, and belongs to the field of PET foaming sheet production equipment. Background The PET foaming sheet material has the good characteristics of light weight, high strength, heat insulation, environmental protection, recoverability, chemical resistance and the like, and has rapidly replaced the traditional foaming plastic in a plurality of fields, such as EPS/XPS/PVC and the like, and the application range is continuously expanded. At present, the PET foaming sheet is limited by various aspects such as foaming multiplying power, sheet thickness, surface evenness and the like during production, and the PET foaming sheet cannot be too thick. For some application places requiring thicker sheets, after the products produced by one-time foaming are produced at a high foaming rate, the surface flatness of the products is not ideal, so that the production quality of the products is affected. Disclosure of utility model According to the defects in the prior art, the technical problem to be solved by the utility model is to provide the PET foaming sheet secondary foaming device capable of carrying out secondary foaming on the PET foaming sheet. The utility model discloses a PET (polyethylene terephthalate) foaming sheet secondary foaming device which comprises a frame body and a traction system, wherein a first support, a second support, a third support and a fourth support are sequentially and fixedly connected on the frame body from left to right, a first upper heating roller and a first lower heating roller are rotationally connected on the first support, a second upper heating roller and a second lower heating roller are rotationally connected on the second support, a third upper heating roller and a third lower heating roller are rotationally connected on the third support, an upper cooling roller and a lower cooling roller are rotationally connected on the fourth support, and the first upper heating roller, the first lower heating roller, the second upper heating roller, the second lower heating roller, the third upper heating roller, the third lower heating roller and the lower cooling roller are all connected with the traction system. Further, the upper end of the frame body is rotatably connected with a sheet guiding roller, and the sheet guiding roller is positioned on the left side of the first support. Further, the traction system comprises a primary traction mechanism, a secondary traction mechanism and a tertiary traction mechanism, wherein the primary traction mechanism is connected with the first upper heating roller, the first lower heating roller, the second upper heating roller and the second lower heating roller, the secondary traction mechanism is connected with the third upper heating roller and the third lower heating roller, and the tertiary traction mechanism is connected with the lower cooling roller. Further, the primary traction mechanism comprises a primary motor fixedly connected to the frame body, a primary tensioning wheel and a primary guide wheel rotatably connected to the frame body, a first upper driving wheel fixedly connected to the first upper heating roller, a first lower driving wheel fixedly connected to the first lower heating roller, a second lower driving wheel fixedly connected to the second lower heating roller and a second upper driving wheel fixedly connected to the second upper heating roller, a primary driving belt is connected to an output wheel of the primary motor, and sequentially bypasses the primary tensioning wheel, the first lower driving wheel, the first upper driving wheel, the second lower driving wheel, the second upper driving wheel and the primary guide wheel, and returns to the output wheel of the primary motor to form a closed loop. Further, the second-stage traction mechanism comprises a second-stage motor fixedly connected to the frame body, a second-stage tensioning wheel and a second-stage guide wheel rotatably connected to the frame body, a third lower driving wheel fixedly connected to a third lower heating roller and a third upper driving wheel fixedly connected to a third upper heating roller, a second-stage driving belt is connected to an output wheel of the second-stage motor, and the second-stage driving belt sequentially bypasses the second-stage tensioning wheel, the third lower driving wheel, the third upper driving wheel and the second-stage guide wheel and returns to an output wheel of the second-stage motor to form a closed loop. Further, the three-level traction mechanism comprises a three-level motor fixedly connected to the frame body, a three-level tensioning wheel rotationally connected to the frame body and a third driving wheel fixedly connected to the lower cooling roller, a three-level driving belt is connected to an output wheel of the three-level motor, and th