CN218020039U

CN218020039U - Extruder head of HDPE water supply pipe

Info

Publication number: CN218020039U
Application number: CN202221220665.XU
Authority: CN
Inventors: 杨志勇; 曲金杰; 丁国强
Original assignee: Hubei Weitong Pipe Technology Co ltd
Current assignee: Hubei Weitong Pipe Technology Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-12-13
Anticipated expiration: 2032-05-20

Abstract

The utility model discloses an extrusion head of HDPE water supply pipe, which comprises a head inner shell, wherein the outer wall of the head inner shell is provided with a head outer shell, one end of the head inner shell is provided with an inlet port, and the other end of the head outer shell is provided with an extrusion head; the utility model discloses when using, utilize and get into the mechanism, let the object get into from the inlet port, and enter into the inside of spiral runner through the inlet hole, the object can get into the buffer of large tracts of land from the spiral runner of small area, then pass through conveying district and discharge area in proper order, accomplish the discharge to the object from the discharge port at last, through letting the object get into the arc form buffer of large area from the spiral runner of small area, can eliminate the helical motion of object, thereby can accomplish the elimination to the parting line to a certain extent, avoid the emergence of potential safety hazard; meanwhile, the development cost of the machine head part can be reduced to a certain extent by shortening the length of the conveying area.

Description

Extruder head of HDPE water supply pipe

Technical Field

The utility model relates to an extrude aircraft nose technical field, especially relate to an extruder nose of HDPE water supply pipe material.

Background

At present, the extrusion machine heads for producing HDPE (high-density polyethylene) water supply pipes in China are spiral split-flow machine heads, the problem is not great when pipes with the dn being less than 250mm are produced, but when the dn being more than or equal to 250mm are produced, a die assembly line which can be seen by naked eyes and cannot be touched exists on the inner wall, the die assembly line is generated because the spiral motion of high-density polyethylene melt material flow is not completely eliminated, and meanwhile, stress concentration can be caused due to the existence of the die assembly line, and hidden dangers can be brought after long-term use.

At present, the mode of eliminating the joint line is to increase the length of the conveying area and to make the object enter the conveying area with a small area from the entrance area with a large area, so as to eliminate the spiral motion of the high-density polyethylene melt flow in a buffering way.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects that the existing mode of eliminating the joint line is poor in effect and can increase the development cost of a machine head component, and providing an extrusion machine head for HDPE (high-density polyethylene) water supply pipes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an extruder head of HDPE water supply pipe, includes the aircraft nose inner shell, the outer wall of aircraft nose inner shell is provided with the aircraft nose shell, the one end of aircraft nose inner shell is provided with the inlet port, the other end of aircraft nose shell is provided with the extruder head, it gets into mechanism, buffer gear, conveying mechanism and discharge mechanism to set gradually between aircraft nose shell and the aircraft nose inner shell.

Preferably, one end of the inlet is trapezoidal in cross section, and the other end of the inlet is rectangular in cross section.

Preferably, the entry mechanism comprises entry holes which are uniformly distributed and obliquely arranged, spiral runners which are uniformly distributed are arranged on the outer wall of the machine head inner shell and are positioned inside the machine head outer shell, one end of each entry hole is communicated with the inside of the inlet, and the other end of each inlet is communicated with the spiral runners.

Preferably, the conveying mechanism comprises a conveying area arranged between the outer shell and the inner shell of the handpiece, and the section of the conveying area is horizontally arranged.

Preferably, buffer gear is including setting up the buffers between aircraft nose shell and aircraft nose inner shell, the cross-section of buffers is the arc form, is located aircraft nose outer shell inner wall the interval between the buffers top and the buffers bottom of aircraft nose inner shell outer wall is greater than aircraft nose outer shell inner wall the interval between the conveying district top and the conveying district bottom of aircraft nose inner shell outer wall.

Preferably, the discharge mechanism comprises a discharge area arranged between the outer shell and the inner shell of the handpiece, the section of the discharge area is obliquely arranged, and a discharge port is arranged on the right side of the discharge area.

Compared with the prior art, the beneficial effects of the utility model are that:

when the device is used, an object enters from the inlet through the inlet mechanism and enters the spiral flow channel through the inlet hole, the object can enter the large-area buffer area from the small-area spiral flow channel and then sequentially passes through the conveying area and the discharging area, and finally the object is discharged from the discharging port; meanwhile, the development cost of the machine head part can be reduced to a certain extent by shortening the length of the conveying area.

Drawings

Fig. 1 is a schematic view of an external three-dimensional structure of an extrusion head of an HDPE pipe provided by the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of an extrusion head of the HDPE water supply pipe provided by the present invention;

fig. 3 is the utility model provides an extrusion head's of HDPE water supply pipe section structure sketch map.

In the figure: 1 machine head inner shell, 2 machine head outer shell, 3 inlet, 4 extruder head, 5 inlet hole, 6 spiral flow channel, 7 conveying area, 8 buffer area, 9 discharging area and 10 outlet.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative work belong to the scope of protection of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, an extruder head for HDPE water supply pipes comprises an inner head shell 1, an outer head shell 2 is arranged on the outer wall of the inner head shell 1, an inlet port 3 is arranged at one end of the inner head shell 1, an extruder head 4 is arranged at the other end of the outer head shell 2, and an inlet mechanism, a buffer mechanism, a conveying mechanism and a discharge mechanism are sequentially arranged between the outer head shell 2 and the inner head shell 1; the cross section of one end of the inlet 3 is in a trapezoid shape, and the cross section of the other end of the inlet 3 is in a rectangular shape, wherein the arrangement is to gather objects entering from the inlet 3, so that the objects can enter the inlet 5 quickly;

the further entry mechanism comprises uniformly distributed and obliquely arranged entry holes 5, uniformly distributed spiral runners 6 are arranged on the outer wall of the handpiece inner shell 1 positioned in the handpiece outer shell 2, one end of each entry hole 5 is communicated with the inside of the inlet 3, and the other end of each inlet 3 is communicated with the spiral runners 6; the conveying mechanism comprises a conveying area 7 arranged between the machine head outer shell 2 and the machine head inner shell 1, and the section of the conveying area 7 is horizontally arranged;

furthermore, the buffer mechanism comprises a buffer area 8 arranged between the outer casing 2 of the machine head and the inner casing 1 of the machine head, the cross section of the buffer area 8 is arc-shaped, the distance between the top end of the buffer area 8 on the inner wall of the outer casing 2 of the machine head and the bottom of the buffer area 8 on the outer wall of the inner casing 1 of the machine head is larger than the distance between the top of the conveying area 7 on the inner wall of the outer casing 2 of the machine head and the bottom of the conveying area 7 on the outer wall of the inner casing 1 of the machine head, and the buffer area 8 is arranged in such a way that objects flowing out from the spiral flow channel 6 with small area directly enter the buffer area 8 with large area, so that spiral motion of the objects flowing out from the spiral flow channel 6 can be eliminated; the discharging mechanism comprises a discharging area 9 arranged between the machine head outer shell 2 and the machine head inner shell 1, the section of the discharging area 9 is obliquely arranged, and a discharging port 10 is arranged on the right side of the discharging area 9.

The utility model discloses when using, let the object get into from inlet port 3 to enter into the inside of spiral runner 6 through manhole 5, the object can get into large tracts of land buffer 8 from the spiral runner 6 of small area, then pass through conveying district 7 and exhaust area 9 in proper order, accomplish the discharge to the object from discharge port 10 at last, through letting the object get into large tracts of land arc form buffer 8 from the spiral runner 6 of small area, can eliminate the spiral motion of object, thereby can accomplish the elimination to the parting line to a certain extent, avoid the emergence of potential safety hazard; meanwhile, the development cost of the machine head part can be reduced to a certain extent by shortening the length of the conveying area 7.

The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an extruder head of HDPE water supply pipe, includes aircraft nose inner shell (1), its characterized in that, the outer wall of aircraft nose inner shell (1) is provided with aircraft nose outer shell (2), the one end of aircraft nose inner shell (1) is provided with inlet port (3), the other end of aircraft nose outer shell (2) is provided with extruder head (4), it gets into mechanism, buffer gear, conveying mechanism and discharge mechanism to have set gradually between aircraft nose outer shell (2) and aircraft nose inner shell (1).

2. The extruder head for HDPE water pipe as claimed in claim 1, wherein one end of the inlet (3) is trapezoidal in cross section, and the other end of the inlet (3) is rectangular in cross section.

3. The extrusion head of HDPE water feeding pipe material as claimed in claim 1, wherein the entry mechanism includes uniformly distributed and obliquely arranged entry holes (5), the outer wall of the inner head shell (1) inside the outer head shell (2) is provided with uniformly distributed spiral flow passages (6), one end of the entry hole (5) is communicated with the inside of the inlet port (3), and the other end of the inlet port (3) is communicated with the spiral flow passages (6).

4. The extrusion head of HDPE water supply pipe material as claimed in claim 1, wherein the conveying mechanism comprises a conveying area (7) arranged between the outer casing (2) and the inner casing (1) of the extrusion head, and the section of the conveying area (7) is horizontally arranged.

5. The extrusion head of HDPE water supply pipe according to claim 4, characterized in that the buffer mechanism comprises a buffer zone (8) arranged between the outer head casing (2) and the inner head casing (1), the cross section of the buffer zone (8) is arc-shaped, and the distance between the top end of the buffer zone (8) on the inner wall of the outer head casing (2) and the bottom of the buffer zone (8) on the outer wall of the inner head casing (1) is larger than the distance between the top of the conveying zone (7) on the inner wall of the outer head casing (2) and the bottom of the conveying zone (7) on the outer wall of the inner head casing (1).

6. The extrusion head of HDPE water pipe as claimed in claim 1, wherein the discharge mechanism comprises a discharge area (9) arranged between the outer casing (2) and the inner casing (1) of the extrusion head, the section of the discharge area (9) is inclined, and the right side of the discharge area (9) is provided with a discharge port (10).