CN216400356U

CN216400356U - Novel injection molding machine nozzle

Info

Publication number: CN216400356U
Application number: CN202122830263.3U
Authority: CN
Inventors: 雷明
Original assignee: Zhuhai Building Block Blister Co ltd
Current assignee: Zhuhai Building Block Blister Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-29
Anticipated expiration: 2031-11-18

Abstract

The utility model discloses a novel injection molding machine nozzle, which relates to the technical field of injection molding, and comprises a nozzle head and a nozzle seat, a first flow passage is arranged in the nozzle head, a second flow passage is arranged on the nozzle seat, the first flow passage and the second flow passage are communicated, a first screen is arranged between the discharge ends of the first flow channel and the second flow channel, a second screen is arranged at the feed end of the second flow channel, the nozzle seat is also internally sleeved with a guide sleeve which is arranged in the second flow passage, both ends of the guide sleeve are provided with openings, the inner wall of the guide sleeve is provided with a plurality of annular convex strips, the annular convex strips are provided with a plurality of intercepting ports for stopping plastic particles, through such mode, effectively solve the not enough of existence among the background art, it is convenient to wash, reduces the condition emergence that the nozzle blockked up, alleviates operating personnel's burden.

Description

Novel injection molding machine nozzle

Technical Field

The utility model relates to the technical field of injection molding, in particular to a novel injection molding machine nozzle.

Background

The injection molding machine is the main molding equipment for manufacturing thermoplastic plastics or thermosetting materials into plastic products with various shapes by utilizing a plastic molding die, the injection molding is realized by the injection molding machine and the die, the most important injection nozzle in the injection molding machine is the injection nozzle which bears the most core technology in the injection molding process, and in a common injection nozzle, the material pipe is sometimes blocked due to the early condensation of material heat flow.

The blockage in the prior art is generally at the nozzle opening, because the nozzle opening is the place with the smallest diameter relative to other parts of the nozzle, and the nozzle opening is generally arranged as an outlet, so the nozzle opening can be blocked once being blocked, the nozzle needs to be cleaned frequently, the production efficiency is seriously influenced, and the worker is labor-intensive due to frequent cleaning.

Therefore, a solution is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel injection molding machine nozzle, which effectively overcomes the defects in the background technology, is convenient to clean, reduces the occurrence of nozzle blockage and lightens the burden of operators.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the utility model provides a novel injection molding machine nozzle, includes nozzle head and nozzle holder, be equipped with first runner in the nozzle head, be equipped with the second runner on the nozzle holder, be linked together between first runner and the second runner, be provided with first screen cloth between the discharge end of first runner and second runner, the feed end of second runner is provided with the second screen cloth, it is equipped with the uide bushing still to overlap in the nozzle holder, the uide bushing sets up in the second runner, the uide bushing both ends all have the opening, the uide bushing inner wall is provided with a plurality of annular sand grips, be provided with a plurality of blocks that are used for blockking plastic granules on the annular sand grip.

Furthermore, one end of the guide sleeve is provided with a clamping round table, the nozzle seat is further provided with a groove body matched with the clamping round table, the guide sleeve is arranged on the nozzle seat, and the clamping round table is installed on the groove body.

Further, the first screen cloth is provided with a plurality of first through holes that are arranged in an annular array, and the second screen cloth is provided with a plurality of second through holes that are arranged in an annular array.

Further, the inner diameter of the first through hole is gradually reduced along the direction from the second flow passage to the first flow passage.

Further, the number of the first through holes is larger than the number of the second through holes.

Furthermore, a plurality of convex blocks are arranged on the annular convex strip, and the intercepting port is formed between every two adjacent convex blocks.

Furthermore, the inner wall of the guide sleeve is symmetrically provided with rectangular grooves, and the grooves are close to the second screen.

Furthermore, the first flow channel comprises a first section, a second section and a third section, the inner diameter of the second section is gradually reduced along the direction from the first end to the third section, and the second section is provided with a first flow sensor.

Furthermore, a second flow sensor is arranged on the guide sleeve in the second flow channel, and the second flow sensor is arranged close to the first screen.

The novel injection molding machine nozzle has the beneficial effects that: the plastic particles with larger diameter in the plastic fluid close to the inner wall of the guide sleeve can be effectively intercepted and filtered through the intercepting port formed on the annular convex strip, the content of the plastic particles with larger diameter in the plastic fluid flowing into the nozzle head subsequently can be reduced, the occurrence of blockage of the nozzle head is reduced, the defects in the background technology are effectively overcome, and the first screen and the second screen are arranged, so that the plastic particles with larger diameter can be effectively filtered, meanwhile, the cleaning is convenient, and the improvement of the whole working efficiency is facilitated; in addition, the first screen and the second screen are mainly used for filtering the plastic fluid close to the middle part, and the upper side and the lower side of the plastic fluid cannot be filtered, so that the plastic fluid at the parts can be effectively filtered by the arrangement of the intercepting openings, and the integral filtering effect is improved.

Drawings

FIG. 1 is a cross-sectional view of a nozzle of a novel injection molding machine;

FIG. 2 is a view showing the structure of the annular rib;

fig. 3 is a structural view at a in fig. 1.

Detailed Description

The novel injection molding machine nozzle is described with reference to the accompanying drawings.

As shown in fig. 1 to 3, as a preferred embodiment of the present invention:

the utility model provides a novel injection molding machine nozzle, includes nozzle head 1 and nozzle holder 2, be equipped with first runner 3 in the nozzle head 1, be equipped with second runner 4 on the nozzle holder 2, be linked together between first runner 3 and the second runner 4, be provided with first screen cloth 5 between the discharge end of first runner 3 and second runner 4, the feed end of second runner 4 is provided with second screen cloth 6, it is equipped with uide bushing 7 still to overlap in the nozzle holder 2, uide bushing 7 sets up in second runner 4, uide bushing 7 both ends all have the opening, uide bushing 7 inner wall is provided with a plurality of annular sand grips 8, be provided with a plurality of interception mouths 9 that are used for blockking plastic granules on the annular sand grip 8.

A plurality of convex blocks 10 are arranged on the annular convex strip 8, and the intercepting port 9 is formed between every two adjacent convex blocks 10.

The arrangement of the intercepting port 9 can filter plastic particles with larger diameters in plastic fluid close to the inner wall of the guide sleeve 7, and the convex blocks 10 can filter the plastic particles with larger diameters to a certain extent, and the matching of the spacing box bodies between the two adjacent convex blocks 10 can enable the overall filtering effect to be more uniform, so that the filtering effect is improved.

Preferably, the first screen 5 is detachably disposed between the discharge ends of the first and

second flow channels

3 and 4, and the second screen 6 is detachably disposed at the feed end of the second flow channel 4, in order to facilitate cleaning and installation of the screens.

In order to facilitate the installation and fixation of the guide sleeve 7 on the nozzle seat 2, one end of the guide sleeve 7 is provided with a clamping circular truncated cone 11, the nozzle seat 2 is further provided with a groove body 12 matched with the clamping circular truncated cone 11, when the guide sleeve 7 is arranged on the nozzle seat 2, the clamping circular truncated cone 11 is installed on the groove body 12.

The first screen 5 is provided with a plurality of first through holes 13 arranged in an annular array, and the second screen 6 is provided with a plurality of second through holes 14 arranged in an annular array. Wherein, through setting up a plurality of through-holes respectively on first screen cloth 5 and second screen cloth 6, have partial hole to block up when first through-hole 13 or second through-hole 14, can not influence the circulation of plastics equally, because there are other holes that do not block up that can circulate plastics in addition, extension clearance cycle that so can be great need not often clear up, and the injection molding machine just need not shut down to can improve production efficiency.

Preferably, the number of the first through holes 13 is greater than that of the second through holes 14, so as to further improve the overall filtering effect.

The inner diameter of the first through hole 13 becomes gradually smaller in the direction from the second flow passage 4 to the first flow passage 3. The purpose of this is: through the through holes with gradually reduced inner diameters, a part of particles with the diameter smaller than the maximum diameter of the first through hole 13 can be intercepted in the first through hole 13, the plastic fluid can be further filtered, and the filtering effect is better.

In order to conveniently detach the guide sleeve 7, rectangular grooves are symmetrically formed in the inner wall of the guide sleeve 7 and are close to the second screen 6. The user can touch the groove by hand to take out the guide sleeve 7 from the nozzle holder 2, and the arrangement of the groove is equivalent to providing an area for the hand to touch inside the guide sleeve 7, so that the guide sleeve 7 is convenient to take out.

In order to facilitate the detection of the flow rate of the plastic fluid, the first flow channel 3 includes a first section 15, a second section 16 and a third section 17, the inner diameter of the second section 16 gradually decreases along the direction from the first end to the third section 17, and a first flow sensor 18 is disposed on the second section 16.

Preferably, a second flow sensor 19 is disposed on the guide sleeve 7 in the second flow channel 4, and the second flow sensor 19 is disposed near the first screen 5.

Wherein, when their flow begins to diminish, just indicate that the screen cloth has begun to block up, when the flow is little to a certain degree, people can clear up the screen cloth, make things convenient for people to know the time of screen cloth clearance.

The novel injection molding machine nozzle has the beneficial effects that: the plastic particles with larger diameter in the plastic fluid close to the inner wall of the guide sleeve 7 can be effectively intercepted and filtered through the intercepting port 9 formed on the annular convex strip 8, the content of the plastic particles with larger diameter in the plastic fluid flowing into the nozzle head 1 subsequently can be reduced, the occurrence of the blocking condition of the nozzle head 1 is reduced, the defects in the background technology are effectively overcome, and the first screen 5 and the second screen 6 are arranged, so that the plastic particles with larger diameter can be effectively filtered, meanwhile, the cleaning is convenient, and the improvement of the whole working efficiency is facilitated; in addition, because the first screen 5 and the second screen 6 mainly filter the plastic fluid near the middle part but cannot filter the upper and lower sides of the plastic fluid, the arrangement of the interception opening 9 can effectively filter the plastic fluid at the part, which is beneficial to improving the whole filtering effect.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. The utility model provides a novel injection molding machine nozzle, includes nozzle head and nozzle holder, be equipped with first runner in the nozzle head, be equipped with the second runner on the nozzle holder, be linked together between first runner and the second runner, be provided with first screen cloth between the discharge end of first runner and second runner, the feed end of second runner is provided with the second screen cloth, a serial communication port, it is equipped with the uide bushing still to overlap in the nozzle holder, the uide bushing sets up in the second runner, the uide bushing both ends all have the opening, the uide bushing inner wall is provided with a plurality of annular sand grips, be provided with a plurality of blocks kerfs that are used for blockking plastic granules on the annular sand grip.

2. The novel nozzle of an injection molding machine as claimed in claim 1, wherein one end of the guide sleeve is provided with a clamping circular truncated cone, the nozzle holder is further provided with a groove body matched with the clamping circular truncated cone, and when the guide sleeve is arranged on the nozzle holder, the clamping circular truncated cone is mounted on the groove body.

3. The novel injection molding machine nozzle of claim 1, wherein said first screen is provided with a plurality of first through holes arranged in an annular array and said second screen is provided with a plurality of second through holes arranged in an annular array.

4. A novel injection molding machine nozzle as claimed in claim 3, wherein the first through bore has an inner diameter that tapers in a direction from the second runner to the first runner.

5. A novel injection molding machine nozzle as claimed in claim 3, wherein said first through holes are greater in number than said second through holes.

6. The novel injection molding machine nozzle as claimed in claim 1, wherein a plurality of projections are provided on said annular rib, and said blocking slit is formed between two adjacent projections.

7. The novel injection molding machine nozzle of claim 1, wherein the guide sleeve inner wall is symmetrically provided with rectangular grooves, and the grooves are arranged close to the second screen.

8. The novel injection molding machine nozzle of claim 1, wherein the first flow passage comprises a first section, a second section and a third section, the second section having an inner diameter that decreases in a direction from the first end to the third section, the second section having a first flow sensor disposed thereon.

9. The novel injection molding machine nozzle of claim 1, wherein a second flow sensor is disposed in said second flow channel on said guide sleeve, said second flow sensor being disposed proximate to said first screen.

10. The novel injection molding machine nozzle of claim 1, wherein said first screen is removably disposed between the discharge ends of said first and second runners, and said second screen is removably disposed at the feed end of said second runner.