CN213564258U

CN213564258U - Die head

Info

Publication number: CN213564258U
Application number: CN202021563010.3U
Authority: CN
Inventors: 向化洲
Original assignee: Xiamen Liwo Automation Equipment Co ltd
Current assignee: Xiamen Liwo Automation Equipment Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-06-29
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a better die head of result of use, connecting seat including the disc, the connecting seat corresponds with the ejection of compact seat of disc and is connected the one end correspondence that the ejection of compact seat was kept away from to the connecting seat is equipped with the mounting groove of inside concave yield the axis department of connecting seat corresponds sets up hourglass hopper-shaped's feeding storehouse the axis department of ejection of compact seat corresponds sets up hollow cylindric runner, the one end of runner corresponds with the one end that the connecting seat was kept away from to the ejection of compact seat and flushes, the other end correspondence of runner is stretched into in the connecting seat and is corresponded the intercommunication with the feeding storehouse. The utility model relates to a better die head of result of use is equipped with the feeding storehouse that leaks hopper-shaped, is favorable to the material to get into, is equipped with the thread groove of many screw thread forms on the surface of runner, can be in the same direction as the screw thread and outwards remove after the material gets into, this application simple structure, simple to operate, convenient to use.

Description

Die head

Technical Field

The utility model belongs to the technical field of the die head and specifically relates to a better die head of result of use.

Background

The die is the shaping element of the extruder and its function is to distribute the plastic melt from the extruder barrel well in the die flow path for extrusion and shaping from the die orifice at a uniform velocity. The shaping action of the extrusion die is of critical importance in the overall extrusion (see plastics processing) process. The structure of the die is also various depending on the extruded product, and the classification of the form is not uniform. The common types include a single-material flow type and a multi-material flow type (i.e. a co-extrusion mode). Single-stream dies can be divided into 3 types of longitudinal feed, angular feed and offset feed in a feed manner. A feeder (also called a connector) is arranged between the offset die head and the extruder. Multiple stream dies can also be classified into feeder, internal manifold, and external manifold type 3. The actual distribution of the plastic melt in the die runner is determined by the flow properties of the melt, the geometry of the runner, the flow rate through the die, and the temperature distribution in the die. If the required flow channel geometry for a plastic is optimized under a set of conditions, the optimized flow channel geometry can be influenced by simply changing the transmission rate or temperature. In addition to circular dies, it is difficult to obtain reasonable runner geometries for a wide variety of plastics and operating conditions. Therefore, it is common to impart turnability to the die while the extruder is running, to vary its profile externally, for example to provide flow-blocking or flow-restricting features in the die, and to vary the local die temperature, which increases the flexibility and controllability of the die, although the mechanical design of the die tends to be complex. The general requirements of die design are: the flow passage has no dead angle, the speed along the flow passage is stably increased, the assembly and the disassembly are easy, the length of the die orifice shaping section is about 10 times of the die orifice gap, the geometric shape of the flow passage is not suitable to be changed suddenly, and a small asymptotic angle is adopted. Therefore, it is necessary to design a die head with better use effect.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects in the prior art, the die head with a better using effect is provided.

The utility model discloses a following scheme realizes:

the utility model provides a better die head of result of use, includes the connecting seat of disc, the connecting seat corresponds with the ejection of compact seat of disc and is connected the one end correspondence that the ejection of compact seat was kept away from to the connecting seat is equipped with the mounting groove of inside concave yield the axis department of connecting seat corresponds and has seted up hourglass hopper-shaped feeding storehouse the axis department of ejection of compact seat corresponds and has seted up hollow cylindric runner, the one end of runner corresponds with the one end that the connecting seat was kept away from to the ejection of compact seat and flushes, the other end correspondence of runner is stretched into in the connecting seat and corresponds the intercommunication with the feeding storehouse.

The connecting seat overlaps each other with the axis of ejection of compact seat, the diameter of connecting seat is 80mm, the diameter of ejection of compact seat is 60mm, the diameter of runner is 21 mm.

The outer end of the mounting groove is flush with the end, away from the discharging seat, of the connecting seat correspondingly, the depth of the mounting groove is 10mm, and the width of the mounting groove is 12 mm.

The outer end of the feeding bin is flush with one end, far away from the discharging seat, of the connecting seat, the inner end, arranged in the connecting seat, of the feeding bin is correspondingly connected with the runner, a runner fillet is correspondingly arranged at the joint of the inner end of the feeding bin and the runner, and the radius of the runner fillet is 10 mm.

The degree of depth in feeding storehouse is 35mm, the height of connecting seat is 50mm, the height of material seat is 38 mm.

The included angle between the bevel edge of the feeding bin and the central axis of the feeding bin is 22.8 degrees.

The surface of the flow channel is provided with a plurality of thread-shaped screw grooves which are parallel to each other.

The utility model has the advantages that:

the utility model relates to a better die head of result of use is equipped with the feeding storehouse that leaks hopper-shaped, is favorable to the material to get into, is equipped with the thread groove of many screw thread forms on the surface of runner, can be in the same direction as the screw thread and outwards remove after the material gets into, this application simple structure, simple to operate, convenient to use.

Drawings

Fig. 1 is a schematic structural view of a die head with a better use effect;

figure 2 is the utility model discloses a structure sketch map is looked to the right side of better die head of result of use

FIG. 3 is a schematic sectional view taken along the line L-L in FIG. 1;

fig. 4 is a schematic view of a three-dimensional structure of the die head with a good using effect.

In the figure: 1 is the connecting seat, 2 is the play material seat, and 3 are mounting groove, and 4 are the feeding storehouse, and 5 are the runner, and 6 are the runner fillet, and 7 are the thread groove.

Detailed Description

The preferred embodiments of the present invention will be further described with reference to the accompanying drawings in which:

as shown in fig. 1-2, a better die head of result of use, including the connecting seat 1 of disc, connecting seat 1 corresponds with the ejection of compact seat 2 of disc and is connected the one end correspondence that ejection of compact seat 2 was kept away from to connecting seat 1 is equipped with the mounting groove 3 of inside concave yield the axis department of connecting seat 1 corresponds and has seted up hourglass hopper-shaped feeding storehouse 4 the axis department of ejection of compact seat 2 corresponds and has seted up hollow cylindric runner 5, the one end of runner 5 corresponds with the one end that ejection of compact seat 2 kept away from connecting seat 1 and flushes, the other end correspondence of runner 5 stretches into in the connecting seat 1 and corresponds the intercommunication with feeding storehouse 4.

The axis of connecting seat 1 and ejection of compact seat 2 overlaps each other, the diameter of connecting seat 1 is 80mm, the diameter of ejection of compact seat 2 is 60mm, the diameter of runner 5 is 21 mm.

The outer end of the mounting groove 3 is flush with the end, far away from the discharging seat 2, of the connecting seat 1, the depth of the mounting groove 3 is 10mm, and the width of the mounting groove 3 is 12 mm. Mounting groove 3 can facilitate this application to install on the extruding machine.

As shown in fig. 3-4, the outer end of the feeding bin 4 is flush with the end of the connecting seat 1 far away from the discharging seat 2, the inner end of the feeding bin 4 arranged in the connecting seat 1 is correspondingly connected with the runner 5, a runner fillet 6 is correspondingly arranged at the joint of the inner end of the feeding bin 4 and the runner 5, and the radius of the runner fillet 6 is 10 mm. The flow resistance of the material can be reduced by the flow channel fillets, so that the material is distributed more uniformly.

The degree of depth of feeding storehouse 4 is 35mm, the height of connecting seat 1 is 50mm, the height of play material seat 2 is 38 mm. The included angle between the bevel edge of the feeding bin 4 and the central axis of the feeding bin 4 is 22.8 degrees. A plurality of thread-shaped screw grooves 7 are formed in the surface of the flow passage 5, and the screw grooves 7 are parallel to each other.

After being processed by an extruder, the dried plastic particles enter a feeding bin 4 by the weight of the plastic particles, and after the particles are contacted with a spiral groove 7, the rotating spiral groove 7 generates a thrust force perpendicular to the spiral groove 7 to face the plastic particles, so that the plastic particles are pushed forwards.

The die head of the present application is connected to the extruder correspondingly, and the specific connection mode, operation process and principle are well known in the art and will not be described herein.

Although the invention has been shown and described in detail with respect to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The utility model provides a die head, includes connecting seat (1) of disc, connecting seat (1) corresponds with ejection of compact seat (2) of disc and is connected its characterized in that: connecting seat (1) is kept away from the one end correspondence of material seat (2) and is equipped with mounting groove (3) of inside concave yield the axis department of connecting seat (1) corresponds and sets up feeding storehouse (4) that leak hopper-shaped the axis department of material seat (2) corresponds and sets up hollow cylindric runner (5), the one end of runner (5) corresponds with the one end of material seat (2) keeping away from connecting seat (1) and flushes, the other end correspondence of runner (5) is stretched into in connecting seat (1) and is corresponded the intercommunication with feeding storehouse (4).

2. A die as claimed in claim 1, wherein: the central axis of connecting seat (1) and ejection of compact seat (2) overlaps each other, the diameter of connecting seat (1) is 80mm, the diameter of ejection of compact seat (2) is 60mm, the diameter of runner (5) is 21 mm.

3. A die as claimed in claim 1, wherein: the outer end of the mounting groove (3) is correspondingly flushed with one end, far away from the discharging seat (2), of the connecting seat (1), the depth of the mounting groove (3) is 10mm, and the width of the mounting groove (3) is 12 mm.

4. A die as claimed in claim 1, wherein: the outer end of feeding storehouse (4) and connecting seat (1) keep away from the one end correspondence of material outlet seat (2) and flush, feeding storehouse (4) set up the inner in connecting seat (1) and correspond with runner (5) and be connected the junction correspondence of the inner of feeding storehouse (4) and runner (5) is equipped with runner fillet (6), the radius of runner fillet (6) is 10 mm.

5. A die as claimed in claim 1, wherein: the degree of depth in feeding storehouse (4) is 35mm, the height of connecting seat (1) is 50mm, the height of unloading seat (2) is 38 mm.

6. A die as claimed in claim 1, wherein: the included angle between the bevel edge of the feeding bin (4) and the central axis of the feeding bin (4) is 22.8 degrees.

7. A die as claimed in claim 1, wherein: the surface of the flow channel (5) is provided with a plurality of thread-shaped screw grooves (7), and the screw grooves (7) are parallel to each other.