CN217293431U

CN217293431U - Feeding device of PET sheet extruder

Info

Publication number: CN217293431U
Application number: CN202221257578.1U
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: 2022-05-24
Filing date: 2022-05-24
Publication date: 2022-08-26
Anticipated expiration: 2032-05-24

Abstract

The utility model provides a feeding device of PET sheet extruder, include: the device comprises a feeding cylinder, a screen and a material collecting box, wherein an annular discharge hole is formed in the side wall of the feeding cylinder, and a feed opening is formed in the bottom of the feeding cylinder; the screen is conical, can be rotatably arranged in the feeding cylinder, and is positioned in the discharge port at the bottom; the material collecting box is sleeved on the outer wall of the feeding cylinder outside the discharge opening. The utility model provides a feeding device of PET sheet extruder, the material suction pipe sucks the raw materials into the hopper, and then falls to the screen cloth, and the big raw materials of size slide down along the screen cloth and get into the collection workbin through the bin outlet, and the little raw materials of size pass the sieve mesh on the screen cloth and fall to the barrel of extruder through the feed opening to final finished product's quality has been guaranteed effectively; 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 pores of the sieve mesh can be prevented from being blocked by the raw materials.

Description

Feeding device of PET sheet extruder

Technical Field

The utility model relates to a PET sheet extruder technical field specifically relates to a feeding device of PET sheet extruder.

Background

In the storage and transportation of coil of strip material, the terminal surface of coil of strip material often can suffer to damage, has very serious damage to coil of strip material's integrality like this to also can produce bad influence to coil of strip material's performance, consequently people have proposed the end backplate that is used for protecting coil of strip material terminal surface, during the packing, fixes the both ends at the coil of strip with the end backplate, and the end backplate comprehensive evaluation of finding plastics system in the use is higher. The production mode of the existing plastic end protection plate is as follows: the raw materials are put into a PET crystallizer for crystallization and drying, and then the dried raw materials are put into a PET sheet extruder for processing.

The existing PET sheet extruder comprises a machine barrel, a feed hopper, a screw and a die head, wherein the feed hopper is arranged at the top of the machine barrel, the screw is rotatably arranged in the machine barrel, the screw is connected with a motor, the die head is arranged at the end part of the machine barrel, after raw materials enter the machine barrel through the feed hopper, the raw materials are melted into a melt under the action of a heating device, the melt is conveyed to the die head under the action of the screw, and a soft and heating PET sheet is extruded from an outlet of the die head. However, the existing feeding hopper often cannot effectively screen the raw materials, so that a part of raw materials with larger size is fed into the machine barrel, and the quality of the finished product finally produced by the extruder is poor.

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 feeding device of PET sheet extruder, include:

the side wall of the feeding cylinder is provided with an annular discharge hole, and the bottom of the feeding cylinder is provided with a feed opening;

the screen is conical and can be rotatably arranged in the feeding cylinder, and the bottom of the screen is positioned in the discharge port;

the material collecting box is sleeved on the outer wall of the feeding cylinder outside the discharge port.

The feeding device further comprises a hopper, wherein a material suction pipe is arranged at the top of the hopper, a blanking section is arranged at the bottom of the hopper, the blanking section is connected with the top of the feeding cylinder, and the inner diameter of the feeding cylinder is 2.5-3 times of the inner diameter of the blanking section.

Furthermore, the feeding device also comprises a rotating shaft and a driving motor, wherein one end of the rotating shaft is connected with the top of the screen, the other end of the rotating shaft extends out of the feeding cylinder, and the output end of the driving motor is connected with the other end of the rotating shaft.

Further, the bottom of the material collecting box is provided with a material discharging pipe.

The utility model provides a feeding device of PET sheet extruder, the material suction pipe sucks the raw materials into the hopper, and then falls to the conical screen, and the bigger raw materials slide down along the conical screen and enter the material collecting box through the bin outlet, and the smaller raw materials pass through the screen hole on the screen and fall into the barrel of the extruder through the feed opening, thereby effectively ensuring the quality of the final finished product; the rotating shaft rotates 10 degrees every 5 seconds, and the next rotating direction is opposite to the last rotating direction, so that the sieve pores of the sieve mesh can be prevented from being blocked by the raw materials.

Drawings

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

wherein, 1, a feeding cylinder; 11. a discharge outlet; 12. a feeding port; 2. screening a screen; 21. a rotating shaft; 22. a drive motor; 3. a material collecting box; 31. a discharge pipe; 4. a hopper; 41. a material suction pipe; 42. and a discharging section.

Detailed Description

Reference will now be made in detail to 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 function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of 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, the utility model provides a feeding device of PET sheet extruder, include: the device comprises a feeding cylinder 1, a screen 2, a material collecting box 3 and a hopper 4, wherein an annular discharge opening 11 is formed in the side wall of the feeding cylinder 1, and a discharge opening 12 is formed in the bottom of the feeding cylinder 1; the screen 2 is hollow and conical, the bottom of the screen 2 is open, the angle of the vertex angle alpha of the screen 2 is 90-150 degrees, the screen 2 is rotatably arranged in the feed cylinder 1, and the bottom of the screen 2 is positioned in the discharge port 11; the material collecting box 3 is sleeved on the outer wall of the feeding cylinder 1 outside the discharge opening 11, the bottom end of the material collecting box 3 is arranged in a downward inclined mode, the bottom of the side wall of the material collecting box 3 is provided with a discharge pipe 31, and the discharge pipe 31 is close to the lower end of the bottom of the material collecting box; the top of hopper 4 is provided with inhales material pipe 41, the bottom of hopper 4 is provided with blanking section 42, blanking section 42 with the top of feeding cylinder 1 links to each other, the internal diameter of feeding cylinder 1 is 2.5 ~ 3 times of blanking section internal diameter. When the PET crystallizer is used, a feed opening at the bottom of the feed cylinder 1 is communicated with a machine barrel of an extruder, dried raw materials in the PET crystallizer are input into the hopper 4 through the material suction pipe 41 and then fall onto the conical screen 2, the raw materials with larger size slide down along the conical screen and enter the material collection box 3 through the discharge opening 11, and the raw materials with smaller size pass through screen holes on the screen 2 and fall into the machine barrel of the extruder through the feed opening 12, so that the quality of a 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.

Still include pivot 21, driving motor 22, the one end of pivot 21 with the top of screen cloth 2 links to each other, the other end of pivot 21 stretches out hopper 4, driving motor 22 sets up the top of hopper 4, driving motor 22's output with the other end of pivot 21 links to each other, and when starting driving motor, can drive the pivot and rotate, and then drive the screen cloth and 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.

The utility model discloses a theory of operation does:

when the feeding device is used, a feed opening at the bottom of the feeding cylinder 1 is connected with a machine barrel of an extruder, raw materials dried in a PET crystallizer are input into the hopper 4 through the material suction pipe 41 and then fall onto the conical screen 2, the raw materials with larger size slide down along the conical screen and enter the material collection box 3 through the discharge opening 11, and the raw materials with smaller size pass through screen holes on the screen 2 and fall into the machine barrel of the extruder through the feed opening 12, so that the quality of a final finished product is effectively ensured; the raw materials collected in the material collecting box 3 can be output to the material storage box through the discharge pipe so as to be reused; 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 pores 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 feeding device of a PET sheet extruder, comprising:

the device comprises a feeding cylinder (1), wherein an annular discharge hole (11) is formed in the side wall of the feeding cylinder (1), and a discharge hole (12) is formed in the bottom of the feeding cylinder;

the screen (2) is conical, the screen (2) is rotatably arranged in the feeding cylinder (1), and the bottom of the screen (2) is positioned in the discharge port (11);

the material collecting box (3), wherein the material collecting box (3) is sleeved on the outer wall of the feeding cylinder (1) outside the discharge opening (11).

2. The feeding device of the PET sheet extruder according to claim 1, further comprising a hopper (4), wherein a material suction pipe (41) is arranged at the top of the hopper (4), a blanking section (42) is arranged at the bottom of the hopper, the blanking section (42) is connected with the top of the feeding cylinder (1), and the inner diameter of the feeding cylinder (1) is 2.5-3 times of the inner diameter of the blanking section.

3. The feeding device of the PET sheet extruder according to claim 1, further comprising a rotating shaft (21) and a driving motor (22), wherein one end of the rotating shaft (21) is connected with the top of the screen (2), the other end of the rotating shaft extends out of the feeding cylinder (1), and the output end of the driving motor (22) is connected with the other end of the rotating shaft (21).

4. Feeding device of PET sheet extruder as claimed in claim 1, characterized in that the bottom of the collecting box (3) is provided with a discharge pipe (31).