CN217293432U

CN217293432U - PET sheet extruder

Info

Publication number: CN217293432U
Application number: CN202221268547.6U
Authority: CN
Inventors: 潘启来; 黄年华; 程秋芳; 程杰; 陈先美
Original assignee: Wuhan Rongke Packaging Material Co ltd
Current assignee: Wuhan Rongke Packaging Material Co ltd
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2022-08-26
Anticipated expiration: 2032-05-25

Abstract

The utility model provides a PET sheet extruder, which comprises a frame, a machine barrel, a screw rod and a heating rod, wherein the machine barrel is arranged on the frame; the screw rod is rotatably arranged in the machine barrel, a plurality of mounting holes are formed in the screw rod along the length direction, and the plurality of mounting holes are annularly distributed in the screw rod; the heating rod is a plurality of, and is a plurality of the heating rod is installed corresponding a plurality of in the mounting hole. The utility model provides a PET sheet extruder, a plurality of heating rods are the annular and distribute in the screw rod, and the screw rod is rotatable to drive the heating rod and rotate in order to form a dynamic and comparatively even heating field, and then make the material in the barrel be heated more evenly.

Description

PET sheet extruder

Technical Field

The utility model relates to a PET sheet production facility technical field specifically relates to a PET sheet extruder.

Background

A PET sheet production line generally includes the following steps in the production of square PET sheets: firstly, conveying raw materials into a PET sheet extruder, and extruding a soft and heating PET sheet by the PET sheet extruder; secondly, cooling and shaping the extruded PET sheet by a calender; and thirdly, conveying the cooled and shaped PET sheet to a cutting station to cut a square PET sheet.

The existing PET sheet extruder comprises a machine barrel, a hopper, a screw and an extrusion die head, wherein the hopper is arranged at the top of the machine barrel, the screw is rotatably arranged in the machine barrel and is connected with a screw motor, the extrusion die head is arranged at the end part of the machine barrel, after raw materials enter the machine barrel through the hopper, the raw materials are melted under the action of a heating device, the melted raw materials are conveyed to the extrusion die head under the action of the screw, and PET sheets are extruded from an outlet of the extrusion die head. The heating wire heating mode is often adopted in the existing machine barrel, and the heating wire is arranged on the side wall of the machine barrel at equal intervals, so that the material in the machine barrel is easily heated uniformly, and the quality of a final product is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a PET sheet extruder, include:

a frame;

a barrel disposed on the carriage;

the screw is rotatably arranged in the machine barrel, a plurality of mounting holes are formed in the screw in the length direction, and the plurality of mounting holes are annularly distributed in the screw;

the heating rod, the heating rod is a plurality of, and is a plurality of the heating rod is installed corresponding a plurality of in the mounting hole.

Furthermore, the screw rod type motor assembly is characterized by further comprising a first motor, wherein the first motor is arranged on the rack, and the output end of the first motor is connected with one end of the screw rod.

Further, the extrusion die head is arranged at the end of the cylinder.

The feeding cylinder is arranged on the machine barrel, and the screen is rotatably arranged in the feeding cylinder.

The PET sheet extruder provided by the utility model has the advantages that a plurality of heating rods are annularly distributed in the screw rod, and the screw rod can rotate, so that the heating rods are driven to rotate to form a dynamic and more uniform heating field, and further, materials in the machine barrel are heated more uniformly; the screen cloth can be screened the raw materials, avoids the great raw materials of size to fall to in the barrel to final finished product's quality has been guaranteed effectively.

Drawings

Fig. 1 is a schematic structural diagram of a PET sheet extruder provided by the present invention;

FIG. 2 is a schematic cross-sectional view of the heating rod installed in the screw according to the present invention;

fig. 3 is a schematic structural diagram of a feeding device provided by the present invention;

wherein, 1, a frame; 2. a barrel; 3. a screw; 31. mounting holes; 32. a heating rod; 33. a first motor; 4. an extrusion die head; 5. a feeding device; 51. a feeding cylinder; 52. a discharge outlet; 53. a feeding port; 54. screening a screen; 55. a material collecting box; 56. a discharge pipe; 57. a hopper; 58. a discharging section; 59. a material suction pipe; 510. a rotating shaft; 511. and a second motor.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 3, the utility model provides a PET sheet extruder, include: the extruder comprises a rack 1, a machine barrel 2, a screw 3, a heating rod 32, an extrusion die head 4 and a feeding device 5, wherein the machine barrel 2 is arranged on the rack 1; the screw rod 3 is rotatably arranged in the machine barrel 2, the screw rod 3 is provided with a plurality of mounting holes 31 along the length direction, and the plurality of mounting holes 31 are annularly distributed in the screw rod 3; the number of the heating rods 32 is multiple, and the multiple heating rods 32 are installed in the corresponding multiple installation holes 31; the extrusion die head 4 is arranged at the end of the machine barrel 2; the feeding device 5 is arranged on the machine barrel 2, and the bottom of the feeding device is communicated with the machine barrel; the screw rod mechanism is characterized by further comprising a first motor 33, wherein the first motor 33 is arranged on the rack 1, and the output end of the first motor 33 is connected with one end of the screw rod 3. A plurality of heating rods are the annular and distribute in the screw rod, and the screw rod is rotatable to drive the heating rod and rotate in order to form a dynamic and comparatively even heating field, and then make the material in the barrel be heated more evenly.

The feeding device 5 comprises a feeding cylinder 51, a screen 54, a material collecting box 55 and a hopper 57, wherein an annular discharge opening 52 is formed in the side wall of the feeding cylinder 51, a discharge opening 53 is formed in the bottom of the feeding cylinder 51, the feeding cylinder 51 is installed at the feeding end of the machine barrel 2, and the discharge opening 53 is communicated with the machine barrel 2; the screen 54 is in a hollow conical shape with an opening at the bottom, the angle of the vertex angle alpha of the screen 54 is 90-150 degrees, the screen 54 is rotatably arranged in the feed cylinder 51, and the bottom of the screen 54 is positioned in the discharge port 52; the material collecting box 55 is sleeved on the outer wall of the feeding cylinder 51 outside the discharge opening 52, the bottom end of the material collecting box 55 is arranged in a downward inclined mode, the bottom of the side wall of the material collecting box 55 is provided with a discharge pipe 56, and the discharge pipe 56 is close to the lower end of the bottom of the material collecting box; the top of hopper 57 is provided with inhales material pipe 59, the bottom of hopper 57 is provided with blanking section 58, blanking section 58 with the top of feed cylinder 51 links to each other, the internal diameter of feed cylinder 51 is 2.5 ~ 3 times of blanking section 58 internal diameter. When the PET crystallization machine is used, the dried raw materials in the PET crystallization machine are input into the hopper 57 through the material suction pipe 59 and then fall onto the conical screen mesh 54, the raw materials with larger size slide down along the conical screen mesh and enter the material collection box 55 through the material discharge port 52, and the raw materials with smaller size pass through the sieve holes on the screen mesh 54 and fall into the machine barrel 2 through the material discharge port 53, so that the quality of the final finished product is effectively ensured; the screen cloth is rotatable, can avoid the raw materials to block up the sieve mesh of screen cloth. The material collected in the collection box 55 can be discharged through a discharge pipe into a storage box for reuse.

The novel screen cloth machine is characterized by further comprising a rotating shaft 510 and a second motor 511, one end of the rotating shaft 510 is connected with the top of the screen cloth 54, the other end of the rotating shaft 510 extends out of the hopper 57, the second motor 511 is arranged at the top of the hopper 57, the output end of the second motor 511 is connected with the other end of the rotating shaft 510, and when the second motor is started, the rotating shaft can be driven to rotate, so that the screen cloth is driven to rotate. Specifically, the rotating shaft rotates 10 degrees every 5 seconds, and the next rotating direction is opposite to the previous rotating direction, so that the sieve holes of the sieve mesh can be prevented from being blocked by the raw materials.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A PET sheet extruder, comprising:

a frame (1);

a barrel (2), the barrel (2) being arranged on the carriage (1);

the screw (3) is rotatably arranged in the machine barrel (2), a plurality of mounting holes (31) are formed in the screw (3) along the length direction, and the plurality of mounting holes (31) are annularly distributed in the screw (3);

the heating rod (32), heating rod (32) are a plurality of, and a plurality of heating rod (32) are installed in a plurality of corresponding mounting hole (31).

2. The PET sheet extruder according to claim 1, further comprising a motor one (33), wherein the motor one (33) is provided on the frame (1), and an output end of the motor one (33) is connected to one end of the screw (3).

3. The PET sheet extruder according to claim 1, further comprising an extrusion die (4), the extrusion die (4) being disposed at an end of the barrel (2).

4. The PET sheet extruder according to claim 1, further comprising a feed cylinder (51), a screen (54), the feed cylinder (51) being disposed on the barrel (2), the screen (54) being rotatably disposed within the feed cylinder (51).