CN210969723U

CN210969723U - Be used for high accuracy to produce plastic mould for a long time

Info

Publication number: CN210969723U
Application number: CN201921435700.8U
Authority: CN
Inventors: 徐云兵
Original assignee: Kunshan Gongwei Special Steel Co ltd
Current assignee: Kunshan Gongwei Special Steel Co ltd
Priority date: 2019-08-31
Filing date: 2019-08-31
Publication date: 2020-07-10
Anticipated expiration: 2029-08-31

Abstract

The utility model belongs to the technical field of the plastic mold, especially, be used for high accuracy long-term production plastic mold, including the drift, the surface of drift is encircleed and is provided with the die sleeve, the surface of going up the die sleeve is encircleed and is provided with the diaphragm ring, the inboard of drift is provided with spacing hole, the surface that the lower extreme of going up the diaphragm ring was provided with is encircleed and is provided with the counterpoint circle, the lower extreme of going up counterpoint circle is connected with the plug, the lower extreme of drift is provided with the lower mould and inserts, the inboard that the lower mould was inserted is provided with the hole of moulding plastics, the inboard that the lower mould was inserted is close to the hole of moulding plastics and is provided with down spacing hole all around, the lower extreme of going up the diaphragm ring is provided with the cushion cap, the. The utility model discloses, when solving the poor problem of ventilation pipeline crushing resistance, provided a technical scheme that can solve the short problem of pipeline interface gas tightness holding time.

Description

Be used for high accuracy to produce plastic mould for a long time

Technical Field

The utility model relates to a plastic mould technical field specifically is a be used for long-term production plastic mould of high accuracy.

Background

Plastic products are mostly injection molded, and injection molding refers to a method of obtaining a molded product by stirring a completely molten plastic material at a certain temperature by a screw, injecting the material into a cavity under high pressure, and cooling and solidifying the material. The method is suitable for mass production of parts with complex shapes, and is one of important processing methods. Mainly comprises 6 stages of mold closing, glue injection, pressure maintaining, cooling, mold opening and product taking out.

The main factor determining the final quality of the product in the injection molding process is the injection mold, which is pre-manufactured by a designer according to the appearance of the product, and after the mold is fully filled with the flowing plastic, the plastic is cooled to obtain a finished product with the same appearance as the mold.

There are the following problems:

1. the existing plastic mold has short service time and is mostly damaged by the stress generated by the collision contact of the upper mold and the lower mold for a long time.

2. The existing plastic mold can not preheat the upper mold and the lower mold, so that the temperature of the flowing plastic which is firstly contacted with the surface of the mold is reduced too fast, the flowing speed is reduced, the problems of uneven color and luster, poor appearance and the like are caused, most factories choose to discard a plurality of plates and even dozens of plates which are just produced, and the production of finished products is increased undoubtedly.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a be used for high accuracy long-term production plastic mould when solving the poor problem of ventilation pipe way crushing resistance, provides one kind and can solve the short technical scheme of problem of pipe joint gas tightness retention time.

In order to achieve the above object, the utility model provides a following technical scheme: a plastic mould for high-precision long-term production comprises a punch, wherein an upper mould sleeve is arranged on the outer surface of the punch in a surrounding manner, an upper mould ring is arranged on the outer surface of the upper mould sleeve in a surrounding manner, an upper limiting hole is formed in the inner side of the punch, an upper aligning ring is arranged on the outer surface of the lower end of the upper mould ring in a surrounding manner, a plug is connected to the lower end of the upper aligning ring, a lower mould insert is arranged at the lower end of the punch, an injection molding hole is formed in the inner side of the lower mould insert, a lower limiting hole is formed in the periphery of the inner side of the lower mould insert, which is close to the injection molding hole, a lower mould sleeve is arranged on the outer surface of the lower mould insert in a surrounding manner, a lower mould ring is arranged on the outer surface of the lower mould ring in a surrounding manner, a groove is formed in the inner side of the lower aligning ring, an upper, the inner side of the lower die insert is provided with a lower heat flow ring, the inner side of the lower die sleeve is provided with a side heat flow ring, and the upper end of the lower die ring is provided with a lower buffer sleeve.

As a preferred technical scheme of the utility model, the external diameter size of drift and the internal diameter size looks adaptation that the lower mould was inserted, the surface of drift and the interior fixed surface who goes up the die sleeve are connected.

As a preferred technical scheme of the utility model, the shape of going up the mould ring is ring shape, the shape of lower mould ring is ring shape, the internal surface of going up the mould ring is connected with the fixed surface of last mould cover.

As a preferred technical scheme of the utility model, go up the lower extreme of mould circle and the upper end fixed connection of last cushion collar, go up the lower extreme of counterpoint circle and the upper end fixed connection of plug.

As an optimal technical scheme of the utility model, the external diameter size of bolt and the internal diameter size looks adaptation of recess, the drift is inserted swing joint through bolt and lower mould.

As a preferred technical scheme of the utility model, the surface that the lower mould was inserted is connected with the internal surface fixed connection of lower die sleeve, the surface of lower die sleeve is connected with the internal surface fixed connection of lower mould circle.

As a preferred technical scheme of the utility model, the upper end of lower mould circle and the lower extreme fixed connection of lower cushion collar, the thickness dimension of counterpoint circle is 2 times of the diameter size of recess down, the thickness dimension of going up the counterpoint circle is 2 times of the diameter size of plug.

As a preferred technical scheme of the utility model, it is symmetric distribution about the horizontal center plumb line of drift to go up the spacing hole, it is symmetric distribution about the horizontal center plumb line that the lower mould was inserted to go up the spacing hole down.

Compared with the prior art, the utility model provides a be used for high accuracy long-term production plastic mould possesses following beneficial effect:

1. this be used for high accuracy long-term production plastic mould, through setting up cushion collar and lower cushion collar, the stress that the collision produced when having cushioned the compound die of upper and lower mould.

2. This be used for high accuracy long-term production plastic mould, through setting up the side heat flow circle, go up the heat flow circle, lower heat flow circle can preheat for the mould, reduces the plastic antenatal loss volume, improves the productivity.

Drawings

FIG. 1 is a schematic view of the overall internal structure of the present invention;

FIG. 2 is a schematic view of the upper module structure of the present invention;

fig. 3 is a schematic view of the lower module structure of the present invention.

In the figure: 1. a punch; 2. putting a die sleeve; 3. mounting a die ring; 4. an upper buffer sleeve; 5. an upper limiting hole; 6. an upper heat flow ring; 7. an upper alignment ring; 8. plugging; 9. a groove; 10. a lower die insert; 11. injection molding holes; 12. a lower heat flow ring; 13. a lower die sleeve; 14. a side heat flow ring; 15. a lower die ring; 16. a lower buffer sleeve; 17. a lower alignment ring; 18. a lower limiting hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, in this embodiment: a plastic mould for high-precision long-term production comprises a punch 1, wherein an upper die sleeve 2 is arranged on the outer surface of the punch 1 in a surrounding manner, an upper die ring 3 is arranged on the outer surface of the upper die sleeve 2 in a surrounding manner, an upper limiting hole 5 is arranged on the inner side of the punch 1, an upper aligning ring 7 is arranged on the outer surface of the lower end of the upper die ring 3 in a surrounding manner, a plug 8 is connected with the lower end of the upper aligning ring 7, a lower die insert 10 is arranged on the lower end of the punch 1, an injection hole 11 is arranged on the inner side of the lower die insert 10, a lower limiting hole 18 is arranged on the inner side of the lower die insert 10 close to the periphery of the injection hole 11, a lower die sleeve 13 is arranged on the outer surface of the lower die sleeve 13 in a surrounding manner, a lower die ring 15 is arranged on the outer surface of the lower die ring 15 in a surrounding manner, a groove 9 is arranged on the inner, the lower heat flow ring 12 is arranged on the inner side of the lower die insert 10, the side heat flow ring 14 is arranged on the inner side of the lower die sleeve 13, and the lower buffer sleeve 16 is arranged at the upper end of the lower die ring 15. The impact stress at the time of mold clamping is reduced by providing the upper cushion cover 4 and the lower cushion cover 16, and the mold is preheated by providing the upper heat flow ring 6, the lower heat flow ring 12, and the side heat flow ring 14.

In the embodiment, the outer diameter of the punch 1 is matched with the inner diameter of the lower die insert 10, and the outer surface of the punch 1 is fixedly connected with the inner surface of the upper die sleeve 2, so that the air tightness during the plastic punching is ensured, and the plastic is prevented from overflowing out of the die; the upper die ring 3 is annular, the lower die ring 15 is annular, and the inner surface of the upper die ring 3 is fixedly connected with the outer surface of the upper die sleeve 2, so that the stability of the upper and lower die blocks is ensured; the lower end of the upper die ring 3 is fixedly connected with the upper end of the upper buffer sleeve 4, and the lower end of the upper alignment ring 7 is fixedly connected with the upper end of the plug 8, so that the impact stress during die assembly is relieved; the outer diameter size of the plug 8 is matched with the inner diameter size of the groove 9, and the punch 1 is movably connected with the lower die insert 10 through the plug 8, so that the butting accuracy of the die is ensured; the outer surface of the lower die insert 10 is fixedly connected with the inner surface of a lower die sleeve 13, and the outer surface of the lower die sleeve 13 is fixedly connected with the inner surface of a lower die ring 15, so that the stability of an upper and lower die assembly machine is improved; the upper end of the lower die ring 15 is fixedly connected with the lower end of the lower buffer sleeve 16, the thickness of the lower alignment ring 17 is 2 times of the diameter of the groove 9, and the thickness of the upper alignment ring 7 is 2 times of the diameter of the plug 8, so that the upper alignment ring 7 and the lower alignment ring 17 are not damaged by collision stress; the upper limiting holes 5 are symmetrically distributed about the horizontal center perpendicular line of the punch 1, and the lower limiting holes 18 are symmetrically distributed about the horizontal center perpendicular line of the lower die insert 10, so that the stability of the die mounting machine is improved, and the position scratching is prevented.

The utility model discloses a theory of operation and use flow: an upper die which passes through the device is arranged at one end of a press machine through an upper limiting hole 5, a lower die is arranged at the other end of the press machine through a lower limiting hole 18, then an upper heat flow ring 6, a lower heat flow ring 12 and a side heat flow ring 14 are used for heat dissipation, a die is preheated, power is provided through the press machine, the upper die and the lower die are in butt joint, a plug 8 is in butt joint with a groove 9 in advance at the moment to ensure the accuracy of butt joint of the dies, then the injection molding machine injects plastic into a closed space after die assembly through an injection molding hole 11, and collision stress in the die assembly process is buffered by an upper buffer sleeve 4 and a lower buffer sleeve 16.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a be used for high accuracy to produce plastic mould for a long time, includes drift (1), the surface of drift (1) is encircleed and is provided with die sleeve (2), the surface of going up die sleeve (2) is encircleed and is provided with upper mould ring (3), the inboard of drift (1) is provided with spacing hole (5), the surface that the lower extreme of going up die ring (3) was provided with encircles and is provided with upper counterpoint circle (7), the lower extreme of upper counterpoint circle (7) is connected with plug (8), the lower extreme of drift (1) is provided with lower mould insert (10), the inboard of lower mould insert (10) is provided with injection molding hole (11), the inboard of lower mould insert (10) is close to injection molding hole (11) all around be provided with lower spacing hole (18), the surface of lower mould insert (10) is encircleed and is provided with lower die sleeve (13), the surface of lower die sleeve (13) is encircle, the surface of lower mould circle (15) encircles and is provided with down counterpoint circle (17), the inboard of counterpoint circle (17) is provided with recess (9), its characterized in that down: the utility model discloses a hot runner system, including drift (1), the inboard of drift (1) is provided with heat current circle (6), the lower extreme of going up mould circle (3) is provided with buffer sleeve (4), the inboard of lower mould insert (10) is provided with down heat current circle (12), the inboard of lower mould cover (13) is provided with side heat current circle (14), the upper end of lower mould circle (15) is provided with down buffer sleeve (16).

2. The mold for high-precision long-term production of plastic according to claim 1, wherein: the outer diameter of the punch (1) is matched with the inner diameter of the lower die insert (10), and the outer surface of the punch (1) is fixedly connected with the inner surface of the upper die sleeve (2).

3. The mold for high-precision long-term production of plastic according to claim 1, wherein: the upper die ring (3) is annular, the lower die ring (15) is annular, and the inner surface of the upper die ring (3) is fixedly connected with the outer surface of the upper die sleeve (2).

4. The mold for high-precision long-term production of plastic according to claim 1, wherein: the lower end of the upper die ring (3) is fixedly connected with the upper end of the upper buffer sleeve (4), and the lower end of the upper alignment ring (7) is fixedly connected with the upper end of the plug (8).

5. The mold for high-precision long-term production of plastic according to claim 1, wherein: the outer diameter size of the plug (8) is matched with the inner diameter size of the groove (9), and the punch (1) is movably connected with the lower die insert (10) through the plug (8).

6. The mold for high-precision long-term production of plastic according to claim 1, wherein: the outer surface of the lower die insert (10) is fixedly connected with the inner surface of a lower die sleeve (13), and the outer surface of the lower die sleeve (13) is fixedly connected with the inner surface of a lower die ring (15).

7. The mold for high-precision long-term production of plastic according to claim 1, wherein: the upper end of the lower die ring (15) is fixedly connected with the lower end of the lower buffer sleeve (16), the thickness of the lower alignment ring (17) is 2 times of the diameter of the groove (9), and the thickness of the upper alignment ring (7) is 2 times of the diameter of the plug (8).

8. The mold for high-precision long-term production of plastic according to claim 1, wherein: the upper limiting holes (5) are symmetrically distributed about a horizontal center perpendicular line of the punch (1), and the lower limiting holes (18) are symmetrically distributed about a horizontal center perpendicular line of the lower die insert (10).