CN211441013U

CN211441013U - Injection mold ejection mechanism

Info

Publication number: CN211441013U
Application number: CN201922470667.9U
Authority: CN
Inventors: 钟灿秋
Original assignee: Dongguan Zhongcui Mold Plastic Technology Co ltd
Current assignee: Dongguan Zhongcui Mold Plastic Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-08
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an injection mold ejection mechanism, which comprises an upper mold, a lower mold and a base; the improved structure of the lower die comprises an upper die and a lower die, and is characterized in that the upper die is located on the upper side of the lower die, the lower die is internally provided with a lower die core, a cross frame is arranged at the bottom end of the lower die and located inside the lower die core, an ejector rod is arranged at the upper end of the cross frame, the upper side of the ejector rod stretches into the lower die core, connecting rods are arranged at two ends of the cross frame, the upper end of each connecting rod stretches out of the lower die and penetrates through the upper die, baffles are arranged at two ends of the lower die, jacks are formed in the upper end of the lower die, insertion rods are arranged at the bottom. The utility model discloses the ejector pin is connected with the connecting rod through the crossbearer, and the connecting rod reciprocates along with last mould, and in mould rebound, it is ejecting, convenience very to drive the ejector pin through the Nuo connecting rod with the finished product.

Description

Injection mold ejection mechanism

Technical Field

The utility model relates to an injection mold ejection mechanism technical field specifically is an injection mold ejection mechanism.

Background

The mould is various moulds and tools for obtaining required products by injection molding, blow molding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The mould is a tool which can make the blank into a product with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or cavity shape, and the blank can be separated (blanked) according to the contour shape by applying the contour shape with the cutting edge.

An injection mold is a tool for producing plastic products; and is also a tool for giving the plastic product complete structure and accurate dimension. Injection molding is a process used to mass produce parts of some complex shapes. The injection molding method specifically comprises the steps that plastic melted by heating is injected into a mold cavity from an injection molding machine at high pressure, a formed product is obtained after cooling and solidification, a finished product needs to be ejected out through an ejector rod when injection molding is completed, the existing ejector rod is generally connected with a braking device, the injection molding mold is complex in structure, and the phenomenon of blocking is easy to occur.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an injection mold ejection mechanism to solve current ejector pin and generally be connected with arresting gear, lead to the injection mold structure complicated, appear the problem of the phenomenon of blocking moreover easily.

In order to achieve the above object, the utility model provides a following technical scheme: an injection mold ejection mechanism comprises an upper mold, a lower mold and a base; the lower die is positioned on the upper side of the base, the bottom end of the lower die is fixedly arranged at the upper end of the base through a bolt, the upper die is positioned on the upper side of the lower die, the bottom end of the upper die is provided with an upper die core, the upper die core is welded at the bottom end of the upper die, the lower die core is arranged in the lower die, a cross frame is arranged at the bottom end of the lower die in the lower die, the upper end of the cross frame is provided with a mandril, the bottom end of the mandril is welded at the upper end of the cross frame, the upper end of the mandril extends into the lower die core, connecting rods are arranged at two ends of the cross frame, the upper ends of the connecting rods extend out of the lower die and penetrate through the upper die, baffles are arranged at two ends of the lower die and are welded at the upper ends of the, the upper end of the lower die is provided with jacks all around, the bottom end of the upper die is provided with inserting rods all around, the upper ends of the inserting rods are welded all around the bottom end of the upper die, and the inserting rods are inserted into the jacks.

Preferably, a soft metal pad is arranged at the position, located at the upper side section of the ejector rod, of the inner part of the lower mold core, and the soft metal pad is welded at the inner position of the lower mold core.

Preferably, the upper end of the ejector rod is arranged in a circular truncated cone shape, and the circular truncated cone shape at the top end of the ejector rod is downward in small caliber and upward in large caliber.

Preferably, the corrosion-resistant layers are arranged on the outer side of the upper die core and the inner part of the lower die core, and the corrosion-resistant layers are chromium-plated layers.

Preferably, the outer side of the connecting rod is provided with a wear-resistant layer.

Preferably, the wear resistant layer is provided as a tungsten steel layer.

Preferably, the upper side of the jack is in a conical arrangement, the large-caliber end of the jack faces upwards, and the small-caliber end of the jack faces downwards.

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

1. the ejector rod is connected with the connecting rod through the cross frame, the connecting rod moves up and down along with the upper die, and the ejector rod is driven by the connecting rod to eject a finished product when the die moves up, so that the die is very convenient;

2. the tungsten steel layer used by the wear-resistant layer has high wear resistance and high temperature resistance, so that the connecting rod and the upper die are prevented from being worn when sliding in use;

3. the round platform shape on the upper end of the mandril prevents the mandril from separating from the lower mold core under the driving of the cross frame.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

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

FIG. 2 is a schematic structural view of the connecting rod of the present invention;

fig. 3 is a schematic diagram of the internal structure of the present invention.

In the figure: 1. a base; 2. a lower die; 3. a connecting rod; 4. inserting a rod; 5. a baffle plate; 6. an upper die; 7. A telescopic rod; 8. an upper mold core; 9. a jack; 10. a lower mold core; 11. a cross frame; 12. a top rod; 13. a wear layer; 14. a groove; 15. a soft metal pad; 16. a corrosion resistant layer.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are 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. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

Referring to fig. 1, 2 and 3, in an embodiment of the present invention, an injection mold ejection mechanism includes an upper mold 6, a lower mold 2 and a base 1; the lower die 2 is positioned on the upper side of the base 1, the bottom end of the lower die 2 is fixedly arranged at the upper end position of the base 1 through bolts, the upper die 6 is positioned on the upper side of the lower die 2, the bottom end of the upper die 6 is provided with an upper die core 8, the upper die core 8 is welded at the bottom end of the upper die 6, the lower die 2 is internally provided with a lower die core 10, the lower die 2 is internally provided with a cross frame 11 at the bottom end position of the lower die core 10, the upper end of the cross frame 11 is provided with a mandril 12, the bottom end of the mandril 12 is welded at the upper end position of the cross frame 11, the upper side of the mandril 12 extends into the lower die core 10, the two ends of the cross frame 11 are provided with connecting rods 3, the upper end of each connecting rod 3 extends out of the lower die 2 to penetrate through the upper die 6, the connecting rods 3 are provided with baffle plates 5 at the, jacks 9 are formed in the periphery of the upper end of the lower die 2, inserting rods 4 are arranged in the periphery of the bottom end of the upper die 6, the upper ends of the inserting rods 4 are welded in the periphery of the bottom end of the upper die 6, and the inserting rods 4 are inserted into the jacks 9.

The inside ejector pin 12 that lies in of lower mold core 10 upside segment position is provided with soft metal pad 15, and soft metal pad 15 welds in mold core 10 internal position down, and soft metal pad 15's texture is softer, can produce when receiving the extrusion and warp, is convenient for seal the space between ejector pin 12 and lower mold core 10.

Further, the upper end of the ejector rod 12 is in a truncated cone shape, the truncated cone shape at the top end of the ejector rod 12 is downward in small diameter and upward in large diameter, and the truncated cone shape at the upper end of the ejector rod 12 is prevented from being separated from the lower mold core 10 under the driving of the cross frame 11.

Further, the corrosion-resistant layers 16 are arranged on the outer side of the upper mold core 8 and inside the lower mold core 10, the corrosion-resistant layers 16 are chromium-plated layers, the chromium-plated layers used by the corrosion-resistant layers 16 have good corrosion resistance and are prevented from being corroded when in use, and the service lives of the outer side of the upper mold core 8 and the lower mold core 10 can be prolonged.

Further, the outer side of the connecting rod 3 is provided with a wear-resistant layer 13, the wear-resistant layer 13 is a tungsten steel layer, the tungsten steel layer used by the wear-resistant layer 13 has high wear resistance and high temperature resistance, and abrasion caused when the connecting rod 3 and the upper die 6 slide in use is avoided.

Further, jack 9 upside is the toper setting, and jack 9 heavy-calibre end is upwards, jack 9 aperture footpath end is downwards, jack 9 upper end toper sets up makes things convenient for inserted bar 4 to calibrate, be convenient for inside inserted bar 4 is accurate and quick embedding jack 9, shrink through on-off control telescopic link 7, telescopic link 7 drives mould 6 and goes on and the rebound, go up mould 6 at the in-process of rebound, will drive connecting rod 3 rebound through baffle 5, connecting rod 3 will drive ejector pin 12 rebound through crossbearer 11 when the rebound, ejector pin 12 will be ejecting the inside finished product of lower mould core 10, when moulding plastics, it is 12 downshifts that go up mould 6 will drive connecting rod 3 through baffle 5, make ejector pin 12 upper end flush with lower mould core 10 is inside, do not influence the processing to the work piece.

The utility model discloses a theory of operation and use flow: after the completion of moulding plastics, contract through on-off control telescopic link 7, mould 6 goes on and the rebound in telescopic link 7 drive, go up mould 6 at the in-process of rebound, will drive connecting rod 3 rebound through baffle 5, connecting rod 3 will drive ejector pin 12 rebound through crossbearer 11 when the rebound, ejector pin 12 will be ejecting the inside finished product of lower mould core 10, when moulding plastics, it will drive connecting rod 3 through baffle 5 and be ejector pin 12 rebound promptly to go up mould 6, make ejector pin 12 upper end flush with lower mould core 10 is inside, do not influence the processing to the work piece.

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. An injection mold ejection mechanism comprises an upper mold (6), a lower mold (2) and a base (1); the method is characterized in that: the lower die (2) is positioned on the upper side of the base (1), the bottom end of the lower die (2) is fixedly arranged at the upper end of the base (1) through a bolt, the upper die (6) is positioned on the upper side of the lower die (2), an upper die core (8) is arranged at the bottom end of the upper die (6), the upper die core (8) is welded at the bottom end of the upper die (6), a lower die core (10) is arranged inside the lower die (2), a cross frame (11) is arranged at the bottom end of the lower die core (10) inside the lower die (2), an ejector rod (12) is arranged at the upper end of the cross frame (11), the bottom end of the ejector rod (12) is welded at the upper end of the cross frame (11), the upper side of the ejector rod (12) extends into the lower die core (10), connecting rods (3) are arranged at two ends of the cross frame (11), the upper end of the, connecting rod (3) are located bed die (2) both ends position and are provided with baffle (5), baffle (5) welding is at connecting rod (3) upside, bed die (2) upside is located connecting rod (3) bottom position and is provided with recess (14), it is provided with telescopic link (7) to go up mould (6) upper end, bolt fixed mounting is passed through at last mould (6) upside in telescopic link (7) bottom, bed die (2) upper end is provided with jack (9) all around, it is provided with inserted bar (4) all around to go up mould (6) bottom, the welding is all around in last mould (6) bottom in inserted bar (4) upper end, inserted bar (4) insert inside jack (9).

2. An injection mold ejection mechanism as in claim 1, wherein: the lower mold core (10) is internally provided with a soft metal pad (15) at the upper side section of the ejector rod (12), and the soft metal pad (15) is welded at the internal position of the lower mold core (10).

3. An injection mold ejection mechanism as in claim 1, wherein: the upper end of the ejector rod (12) is in a round table shape, and the round table shape at the top end of the ejector rod (12) is downward in small caliber and upward in large caliber.

4. An injection mold ejection mechanism as in claim 1, wherein: the corrosion-resistant layer (16) is arranged on the outer side of the upper mold core (8) and inside the lower mold core (10), and the corrosion-resistant layer (16) is a chromium-plated layer.

5. An injection mold ejection mechanism as in claim 1, wherein: and a wear-resistant layer (13) is arranged on the outer side of the connecting rod (3).

6. An injection mold ejection mechanism as in claim 5, wherein: the wear-resistant layer (13) is a tungsten steel layer.

7. An injection mold ejection mechanism as in claim 1, wherein: the upside of the jack (9) is arranged in a conical shape, the large-caliber end of the jack (9) faces upwards, and the small-caliber end of the jack (9) faces downwards.