CN110696309B

CN110696309B - Demoulding device without external power for injection mould

Info

Publication number: CN110696309B
Application number: CN201911026745.4A
Authority: CN
Inventors: 何谷超; 胡帅月
Original assignee: Shantou Yusheng Plastic Rubber Industrial Co ltd
Current assignee: SHANTOU YUSHENG PLASTIC RUBBER INDUSTRIAL Co.,Ltd.
Priority date: 2019-10-26
Filing date: 2019-10-26
Publication date: 2020-06-30
Anticipated expiration: 2039-10-26
Also published as: CN110696309A

Abstract

The invention discloses the technical field of demoulding devices, and particularly relates to a demoulding device without external power for an injection mould. According to the invention, the ejector block is arranged in the lower die, the ejector block controls ejection of the injection molding piece through the demolding ejector rod, and the demolding ejector rod rises through power generated when the upper die rises, so that no external power is applied, and the use cost is low; the automatic demoulding operation is completed when the upper mould is opened, so that the automatic demoulding device is convenient to use and high in efficiency; according to the invention, the upper die and the lower die are connected into a whole through the upper supporting plate, and the upper die is guided through the guide rod and the guide hole when ascending relative to the lower die, so that the upper die and the lower die are stably connected in structure, and deviation is not easy to occur.

Description

Demoulding device without external power for injection mould

Technical Field

The invention relates to the technical field of demolding devices, in particular to a demolding device without external power for an injection mold.

Background

The demoulding device can be used for demoulding of an injection mould, and the injection mould is a tool for producing plastic products; the demolding device of the injection mold still has the following defects in practical use:

1. in the prior art, the demoulding device usually uses an external ejector rod for demoulding, needs external power intervention, and has the phenomena of low efficiency and inconvenient use;

2. some shedder sets up in the inside of mould, adds to have power unit ejecting with the injection molding, nevertheless comparatively consumes the resource, and uses and the cost of manufacture is higher, is not fit for promoting.

Therefore, we propose a demolding device without external power for injection mold to solve the above disadvantages.

Disclosure of Invention

The invention aims to provide a demoulding device without external power for an injection mould, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a demoulding device without external power for an injection mould comprises an upper mould, wherein a lower mould is arranged below the upper mould, a lower mould convex block is integrally arranged at the middle position of the upper surface of the lower mould, an upper mould groove is arranged at the middle position of the lower surface of the upper mould, an injection molding piece is arranged between the upper mould groove and the lower mould convex block, the upper right end of the upper mould groove is communicated with an injection molding channel, the injection molding channel is communicated with an injection molding opening on the upper surface of the upper mould, a top groove is arranged at the middle position of the upper surface of the lower mould convex block, a top block is matched and installed in the top groove, a demoulding ejector rod is fixedly welded at the lower end of the top block, the lower end of the top groove is communicated with a movable hole penetrating through the lower surface of the lower mould, the lower end of the demoulding ejector rod movably penetrates through the movable hole and extends out of the, the drawing of patterns connecting rod is L font structure, and the upper end fixed welding of drawing of patterns connecting rod is in the right-hand member side of last mould.

Preferably, the fixed welding of the upper surface intermediate position of going up the mould has the adapter sleeve, is fixed with electric putter through the screw rod in the adapter sleeve, the fixed welding in the bottom surface of last backup pad in electric putter's upper end, it is L font structure to go up the backup pad, and the lower extreme fixed welding of going up the backup pad has a supporting baseplate, the fixed welding of supporting baseplate is on the supporting leg of the below of lower mould.

Preferably, the lower fixed surface of lower mould has three groups of supporting legs, and three groups of supporting legs are circular array form and distribute.

Preferably, the surface of going up the backup pad is provided with the guiding hole, the guiding hole is round hole column structure and runs through the upper and lower surface setting of going up the backup pad simultaneously.

Preferably, the guide bar is passed in the activity in the guiding hole, the fixed welding of the lower extreme of guide bar has the lower extreme plectane, the diameter of lower extreme plectane is greater than the diameter of guide bar, and the fixed welding of lower extreme plectane has the upper surface at last mould, the fixed welding of the upper surface of lower extreme plectane has buffer spring, buffer spring movable sleeve establishes in the outer lane department of guide bar, and buffer spring's upper end activity laminating is at the lower surface of last backup pad.

Preferably, the upper end activity of guide bar passes the upper surface setting of last backup pad, and the upper end of guide bar is connected with stop nut through screw-thread fit, stop nut activity laminating is at the upper surface of last backup pad.

Preferably, the supporting bottom plate is of a rectangular plate-shaped structure, the supporting bottom plate is perpendicular to the lower end of the upper supporting plate, and the lower surface of the supporting bottom plate is flush with the lower surfaces of the supporting legs.

Compared with the prior art, the invention has the beneficial effects that: the invention has reasonable structure and strong functionality, and has the following advantages:

1. according to the invention, the ejector block is arranged in the lower die, the ejector block controls ejection of the injection molding piece through the demolding ejector rod, and the demolding ejector rod rises through power generated when the upper die rises, so that no external power is applied, and the use cost is low;

2. the automatic demoulding operation is completed when the upper mould is opened, so that the automatic demoulding device is convenient to use and high in efficiency;

3. according to the invention, the upper die and the lower die are connected into a whole through the upper supporting plate, and the upper die is guided through the guide rod and the guide hole when ascending relative to the lower die, so that the upper die and the lower die are stably connected in structure, and deviation is not easy to occur.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a knockout connecting rod according to the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3 in accordance with the present invention;

FIG. 5 is an enlarged view of the structure at B in FIG. 4 according to the present invention.

In the figure: the injection molding device comprises an upper die 1, a lower die 2, a demolding connecting rod 3, a supporting leg 4, an injection molding opening 5, a connecting sleeve 6, an electric push rod 7, a buffer spring 8, a lower end circular plate 9, a guide rod 10, a limiting nut 11, an upper supporting plate 12, a demolding ejector rod 13, a guide hole 14, an upper die groove 15, a lower die lug 16, an injection molding part 17, an ejector groove 18, an ejector block 19, a movable hole 20, an injection molding channel 21, a supporting bottom plate 22 and a follow-up plate 23.

Detailed Description

The technical solutions 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 a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a demoulding device without external power for an injection mould comprises an upper mould 1, wherein a connecting sleeve 6 is fixedly welded at the middle position of the upper surface of the upper mould 1, an electric push rod 7 is fixed in the connecting sleeve 6 through a screw rod, the upper end of the electric push rod 7 is fixedly welded on the bottom surface of an upper supporting plate 12, the upper supporting plate 12 is in an L-shaped structure, a guide hole 14 is arranged on the surface of the upper supporting plate 12, the guide hole 14 is in a round hole-shaped structure and penetrates through the upper surface and the lower surface of the upper supporting plate 12, and the guide hole 14 is used for guiding the upper mould 1 when;

the guide rod 10 movably penetrates through the guide hole 14, the upper end of the guide rod 10 movably penetrates through the upper surface of the upper support plate 12, the upper end of the guide rod 10 is connected with a limiting nut 11 in a threaded fit mode, the limiting nut 11 is movably attached to the upper surface of the upper support plate 12, and the limiting nut 11 prevents the guide rod 10 from falling downwards;

a lower end circular plate 9 is fixedly welded at the lower end of the guide rod 10, the diameter of the lower end circular plate 9 is larger than that of the guide rod 10, the lower end circular plate 9 is fixedly welded on the upper surface of the upper die 1, a buffer spring 8 is fixedly welded on the upper surface of the lower end circular plate 9, the buffer spring 8 is movably sleeved at the outer ring of the guide rod 10, the upper end of the buffer spring 8 is movably attached to the lower surface of the upper support plate 12, the buffer spring 8 has a certain buffering and damping effect, and the stability of the upper die 1 during up-and-down guiding is improved;

at the fixed welding of the lower extreme of last backup pad 12 there is supporting baseplate 22, and supporting baseplate 22 fixed welding is on supporting leg 4 of the below of lower mould 2, and electric putter 7's model can use: the ANT-26, but not limited to the electric push rod of this type, can be selected according to actual requirements, and is a common prior art, and is not described herein again;

a lower die 2 is arranged below the upper die 1, three groups of supporting legs 4 are fixedly welded on the lower surface of the lower die 2, the three groups of supporting legs 4 are distributed in a circular array shape, the supporting legs 4 support the lower die 2, and sufficient space is also ensured below the lower die 2 for the lifting of a follow-up plate 23, so that the lifting of a demoulding ejector rod 13 is controlled to control an ejector block 19;

a lower die convex block 16 is integrally arranged at the middle position of the upper surface of the lower die 2, an upper die groove 15 is arranged at the middle position of the lower surface of the upper die 1, an injection molding part 17 is arranged between the upper die groove 15 and the lower die convex block 16, the upper right end of the upper die groove 15 is communicated with an injection molding channel 21, the injection molding channel 21 is communicated with an injection molding port 5 on the upper surface of the upper die 1, a top groove 18 is arranged at the middle position of the upper surface of the lower die convex block 16, a top block 19 is arranged in the top groove 18 in a matching way, a demoulding ejector rod 13 is fixedly welded at the lower end of the top block 19, a movable hole 20 penetrating through the lower surface of the lower die 2 is communicated at the lower end of the top groove 18, the lower end of the demoulding ejector rod 13 movably penetrates through the movable hole 20 and extends out of the lower surface of the lower die, the upper end of the demoulding connecting rod 3 is fixedly welded on the right end side surface of the upper die 1.

Wherein, supporting baseplate 22 is rectangle platelike structure, and supporting baseplate 22 is mutually perpendicular with the lower extreme of last backup pad 12, and supporting baseplate 22's lower surface and supporting leg 4's lower surface are parallel and level mutually, and supporting baseplate 22 mainly plays and is connected into holistic effect with last mould 1 and lower mould 2 for the device during operation is more stable.

The working principle is as follows: mouth 5 departments of moulding plastics, the raw materials gets into upper mould groove 15 through the passageway 21 of moulding plastics and carries out the cooling shaping, after the cooling shaping, open through electric putter 7 and go up mould 1, when going up mould 1 and opening, it rises to go up the drawing of patterns connecting rod 3 drive follower plate 23 of mould 1 side, carry out the jacking to drawing of patterns ejector pin 13, it rises through kicking block 19 when drawing of patterns ejector pin 13 rises, it is ejecting to drop injection molding 17, high efficiency, the drawing of patterns does not have external power, use cost is saved, and go up and lead through guide bar 10 and guiding hole 14 between mould 1 and the lower mould 2, structural connection between the two is stable, the deviation is difficult for appearing from top to bottom in the during.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a no external power shedder for injection mold, includes mould (1), its characterized in that: the lower die structure is characterized in that a lower die (2) is arranged below the upper die (1), a lower die convex block (16) is integrally arranged at the middle position of the upper surface of the lower die (2), an upper die groove (15) is arranged at the middle position of the lower surface of the upper die (1), an injection molding part (17) is arranged between the upper die groove (15) and the lower die convex block (16), an injection molding channel (21) is communicated with the upper right end of the upper die groove (15), the injection molding channel (21) is communicated with an injection molding port (5) on the upper surface of the upper die (1), a top groove (18) is arranged at the middle position of the upper surface of the lower die convex block (16), a top block (19) is installed in the top groove (18) in a matching manner, a demolding ejector rod (13) is fixedly welded at the lower end of the top block (19), a movable hole (20) penetrating through the lower surface of the lower die (2) is communicated with the lower end of the top groove, the lower end of the demolding ejector rod (13) is correspondingly provided with a follow-up plate (23), the follow-up plate (23) is fixedly welded at the lower end position of the demolding connecting rod (3), the demolding connecting rod (3) is in an L-shaped structure, and the upper end of the demolding connecting rod (3) is fixedly welded on the right end side face of the upper die (1);

a connecting sleeve (6) is fixedly welded in the middle of the upper surface of the upper die (1), an electric push rod (7) is fixed in the connecting sleeve (6) through a screw rod, the upper end of the electric push rod (7) is fixedly welded on the bottom surface of an upper supporting plate (12), the upper supporting plate (12) is of an L-shaped structure, a supporting bottom plate (22) is fixedly welded at the lower end of the upper supporting plate (12), and the supporting bottom plate (22) is fixedly welded on a supporting leg (4) below the lower die (2);

three groups of supporting legs (4) are fixedly welded on the lower surface of the lower die (2), and the three groups of supporting legs (4) are distributed in a circular array shape;

the surface of the upper supporting plate (12) is provided with a guide hole (14), and the guide hole (14) is of a round hole-shaped structure and penetrates through the upper surface and the lower surface of the upper supporting plate (12);

the guide rod (10) movably penetrates through the guide hole (14), a lower end circular plate (9) is fixedly welded at the lower end of the guide rod (10), the diameter of the lower end circular plate (9) is larger than that of the guide rod (10), the lower end circular plate (9) is fixedly welded on the upper surface of the upper die (1), a buffer spring (8) is fixedly welded on the upper surface of the lower end circular plate (9), the buffer spring (8) is movably sleeved at the outer ring of the guide rod (10), and the upper end of the buffer spring (8) is movably attached to the lower surface of the upper support plate (12);

the upper end of the guide rod (10) movably penetrates through the upper surface of the upper support plate (12), the upper end of the guide rod (10) is connected with a limiting nut (11) in a threaded fit mode, and the limiting nut (11) is movably attached to the upper surface of the upper support plate (12);

the supporting bottom plate (22) is of a rectangular plate-shaped structure, the supporting bottom plate (22) is vertical to the lower end of the upper supporting plate (12), and the lower surface of the supporting bottom plate (22) is flush with the lower surfaces of the supporting legs (4);

during the use, mouth (5) department of moulding plastics, the raw materials gets into upper die cavity (15) through moulding plastics passageway (21) and cools off the shaping, after the cooling shaping, open mould (1) through electric putter (7), when going up mould (1) and opening, it drives follower plate (23) and rises to go up drawing of patterns connecting rod (3) of mould (1) side, carry out the jacking to drawing of patterns ejector pin (13), drawing of patterns ejector pin (13) rise through kicking block (19) when rising, it is ejecting to drop injection molding (17), high efficiency, the drawing of patterns does not have external power, and go up and lead through guide bar (10) and guiding hole (14) between mould (1) and lower mould (2), structural connection between the two is stable, difficult for appearing the deviation from top to bottom during operation.