阅读说明：本技术 一种采用顶针进行脱模的隐形眼镜生产模具 (Contact lens production mold adopting ejector pins for demolding ) 是由 赵铭柱 李凡 于 2021-05-12 设计创作，主要内容包括：本发明公开了一种采用顶针进行脱模的隐形眼镜生产模具,包括底座；所述底座上端设置有下模具,所述下模具上侧设置有多个下模芯,所述下模具底端设置有底板,所述底板上端设置有顶针,所述顶针上端穿过下模具伸入下模芯内部,所述顶针外侧套有弹簧,所述弹簧两端焊接在下模具底端和底板上端位置,所述下模具上端设置有上模具,所述上模具底端焊接有上模芯,所述插杆上端贯穿上模具,所述上模具上端设置有伸缩杆,所述伸缩杆底端通过螺栓固定安装在上模具上端位置。本发明将下模具进行取出,取出之后将下模具放置在平台上侧,在向下按压,使得底板带动顶针向上进行移动,使得顶针将下模芯内部的成品进行顶出,非常的方便快捷。(The invention discloses a contact lens production mold adopting an ejector pin for demolding, which comprises a base; the base upper end is provided with the bed die, the bed die upside is provided with a plurality of bed dies, the bed die bottom is provided with the bottom plate, the bottom plate upper end is provided with the thimble, the thimble upper end is passed inside the bed die stretches into bed die, thimble outside cover has the spring, the welding of spring both ends is in bed die bottom and bottom plate upper end position, the bed die upper end is provided with the mould, it has last mold core to go up the welding of mould bottom, the inserted bar upper end runs through the mould, it is provided with the telescopic link to go up the mould upper end, bolt fixed mounting is passed through to the telescopic link bottom in last mould upper end position. According to the invention, the lower die is taken out and placed on the upper side of the platform after being taken out, and the bottom plate drives the ejector pins to move upwards after being pressed downwards, so that the finished products in the lower die core are ejected out by the ejector pins, and the lower die is very convenient and rapid.)

1. A contact lens production mold adopting an ejector pin for demolding comprises a base (1); the method is characterized in that: the upper end of the base (1) is provided with a lower die (7), the lower die (7) is placed inside the base (1), handles (2) are arranged on two sides of the lower die (7), the handles (2) are welded on two sides of the lower die (7), a plurality of lower die cores (8) are arranged on the upper side of the lower die (7), the lower die cores (8) are uniformly distributed on the upper side of the lower die (7), a bottom plate (13) is arranged at the bottom end of the lower die (7), ejector pins (12) are arranged at the upper end of the bottom plate (13), the upper ends of the ejector pins (12) penetrate through the lower die (7) and extend into the lower die cores (8), springs (14) are sleeved on the outer sides of the ejector pins (12), two ends of the springs (14) are welded at the bottom end of the lower die (7) and the upper end of the bottom plate (13), and inserting rods (9) are arranged on the upper end of the lower die (7), the bottom end of the inserting rod (9) is welded around the upper end of the lower die (7), the upper end of the lower die (7) is provided with the upper die (4), the bottom end of the upper die (4) is welded with the upper die core (16), the upper end of the inserting rod (9) penetrates through the upper die (4), the upper end of the upper die (4) is provided with the telescopic rod (5), and the bottom end of the telescopic rod (5) is fixedly installed at the upper end of the upper die (4) through a bolt.

2. The contact lens production mold for demolding by ejector pins as claimed in claim 1, wherein: the corrosion-resistant layers (15) are arranged on the outer sides of the upper mold core (16) and the lower mold core (8), and the corrosion-resistant layers (15) are chromium-plated layers.

3. The contact lens production mold for demolding by ejector pins as claimed in claim 1, wherein: the upper end of the inserted bar (9) is provided with a circular truncated cone-shaped head (3), and the bottom end of the circular truncated cone-shaped head (3) is welded at the upper end of the inserted bar (9).

4. The contact lens production mold for demolding by ejector pins as claimed in claim 1, wherein: the bottom end of the bottom plate (13) is provided with a friction pad (11), and the upper end of the friction pad (11) is adhered to the bottom end of the bottom plate (13) through adhesive glue.

5. The contact lens production mold for demolding by ejector pins as claimed in claim 1, wherein: the handle (2) outside is provided with heat insulating mattress (6), and heat insulating mattress (6) are through the sticky position of gluing in handle (2) outside.

6. The contact lens production mold for demolding by ejector pins as claimed in claim 1, wherein: a soft connecting piece (10) is arranged between the bottom plate (13) and the lower mold core (8), and the soft connecting piece (10) is adhered to the upper end of the bottom plate (13) and the bottom end of the lower mold core (8) through adhesive glue.

Technical Field

The invention relates to the technical field of contact lens processing equipment, in particular to a contact lens production mold for demolding by adopting an ejector pin.

Background

Contact lenses, or contact lenses, are lenses that are worn on the cornea of the eye to correct vision or protect the eye. The contact lenses are hard and soft, the contact lenses not only bring great improvement to ametropia patients with myopia, hyperopia, astigmatism and the like from the aspects of appearance and convenience, but also have wide visual field and vivid visual objects, in addition, the contact lenses also play special effects in the aspects of controlling the development of teenager myopia and astigmatism, treating special eye diseases and the like, the contact lenses need to be produced through a mold during processing, and the demolding is very inconvenient during the processing of the mold, so that the processing efficiency is influenced.

Disclosure of Invention

The invention aims to provide a contact lens production mold adopting an ejector pin for demolding, and aims to solve the problems that demolding is inconvenient during mold processing and the processing efficiency is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a contact lens production mold adopting an ejector pin for demolding comprises a base; the upper end of the base is provided with a lower die which is placed inside the base, handles are arranged on two sides of the lower die, the handles are welded at the two sides of the lower die, the upper side of the lower die is provided with a plurality of lower die cores, the lower mold cores are uniformly distributed on the upper side of the lower mold, a bottom plate is arranged at the bottom end of the lower mold, a thimble is arranged at the upper end of the bottom plate, the upper end of the thimble penetrates through the lower die and extends into the lower die core, the outer side of the thimble is sleeved with a spring, the two ends of the spring are welded at the bottom end of the lower die and the upper end of the bottom plate, the periphery of the upper end of the lower die is provided with an inserted bar, the bottom end of the inserted bar is welded on the periphery of the upper end of the lower die, the upper end of the lower die is provided with an upper die, the bottom end of the upper die is welded with an upper die core, the upper end of the inserted link penetrates through the upper die, the upper die is characterized in that a telescopic rod is arranged at the upper end of the upper die, and the bottom end of the telescopic rod is fixedly installed at the upper end of the upper die through a bolt.

Preferably, the corrosion-resistant layers are arranged on the outer sides of the upper mold core and the lower mold core, and the corrosion-resistant layers are chromium-plated layers.

Preferably, the upper end of the inserted bar is provided with a circular truncated cone-shaped head, and the bottom end of the circular truncated cone-shaped head is welded at the upper end of the inserted bar.

Preferably, the bottom end of the bottom plate is provided with a friction pad, and the upper end of the friction pad is adhered to the bottom end of the bottom plate through adhesive glue.

Preferably, a heat insulation pad is arranged on the outer side of the handle, and the heat insulation pad is adhered to the outer side of the handle through adhesive glue.

Preferably, a soft connecting piece is arranged between the bottom plate and the lower die core and is adhered to the upper end of the bottom plate and the bottom end of the lower die core through adhesive glue.

Compared with the prior art, the invention has the beneficial effects that:

1. the lower die is taken out, placed on the upper side of the platform after being taken out, and pressed downwards, so that the bottom plate drives the ejector pins to move upwards, and the ejector pins eject finished products in the lower die core, and the lower die is very convenient and rapid;

2. the soft connecting piece is arranged for protecting the spring on the upper side of the bottom plate, so that the spring is prevented from being corroded by air, and the elasticity and the service life of the spring are prevented from being influenced;

3. the arrangement of the heat insulation pad avoids the situation that the temperature of the handle is high and the workers are scalded when the heat insulation pad is used;

4. the friction pad is arranged to increase the friction force at the bottom end of the bottom plate, so that the bottom plate and the workbench are prevented from sliding when being pressed downwards.

Drawings

The accompanying drawings, which 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 principles of 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 diagram of a base according to the present invention;

FIG. 3 is a schematic structural view of an upper mold according to the present invention;

fig. 4 is a schematic structural view of the lower mold of the present invention.

In the figure: 1. a base; 2. a handle; 3. a circular truncated cone-shaped head; 4. an upper die; 5. a telescopic rod; 6. a heat insulating pad; 7. a lower die; 8. a lower mold core; 9. inserting a rod; 10. a flexible connector; 11. a friction pad; 12. a thimble; 13. a base plate; 14. a spring; 15. a corrosion-resistant layer; 16. and (4) an upper mold core.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, in an embodiment of the present invention, a contact lens production mold for demolding by using an ejector pin includes a base 1; the upper end of the base 1 is provided with a lower die 7, the lower die 7 is placed in the base 1, the two sides of the lower die 7 are provided with handles 2, the handles 2 are welded at the positions of the two sides of the lower die 7, the upper side of the lower die 7 is provided with a plurality of lower die cores 8, the lower die cores 8 are uniformly distributed at the upper side of the lower die 7, the bottom end of the lower die 7 is provided with a bottom plate 13, the upper end of the bottom plate 13 is provided with a thimble 12, the upper end of the thimble 12 penetrates through the lower die 7 and extends into the lower die cores 8, the outer side of the thimble 12 is sleeved with a spring 14, the two ends of the spring 14 are welded at the positions of the bottom ends of the lower die 7 and the upper end of the bottom plate 13, the upper end of the lower die 7 is provided with an insert rod 9 all around, the bottom end of the insert rod 9 is welded around the upper end of the lower die 7, the upper end of the lower die 7 is provided with an upper die 4, the lower die 4 is welded with an upper die 4, the upper end of the upper die 4 is provided with a telescopic rod 5, and the bottom end of the upper die 4 is fixedly installed at the upper end of the upper die 4 through bolts.

Further, the corrosion-resistant layers 15 are arranged on the outer sides of the upper mold core 16 and the lower mold core 8, the corrosion-resistant layers 15 are chromium-plated layers, and the chromium-plated layers used by the corrosion-resistant layers 15 have strong corrosion resistance, so that abrasion of the upper mold core 16 and the lower mold core 8 in use can be reduced.

Further, the upper end of the inserting rod 9 is provided with a circular truncated cone-shaped head 3, the bottom end of the circular truncated cone-shaped head 3 is welded at the upper end of the inserting rod 9, and the circular truncated cone-shaped head 3 is arranged to facilitate the inserting rod 9 to penetrate through the upper die 4.

Further, the bottom end of the bottom plate 13 is provided with a friction pad 11, the upper end of the friction pad 11 is adhered to the bottom end of the bottom plate 13 through adhesive glue, and the friction pad 11 is arranged to increase the friction force at the bottom end of the bottom plate 13, so that the bottom plate 13 and the workbench are prevented from sliding when being pressed downwards.

Further, the 2 outsides of handle are provided with heat insulating mattress 6, and heat insulating mattress 6 passes through the sticky subsides of bonding in 2 outside positions of handle, and heat insulating mattress 6's setting is avoided handle 2's temperature when using higher, scalds the staff.

Further, be provided with soft connecting piece 10 between bottom plate 13 and the lower die core 8, and soft connecting piece 10 is used for protecting the spring 14 of bottom plate 13 upside through the sticky 8 bottom end positions of pasting in bottom plate 13 upper end and lower die core of bonding, soft connecting piece 10's setting, avoids spring 14 to receive the corruption of air, influences spring 14's elasticity and life.

The working principle and the using process of the invention are as follows: during the use, place bed die 7 at base 1 upside, opening telescopic link 5 through the switch, telescopic link 5 will drive mould 4 and carry out the downstream, make inside lower mould 8 in the mould 7 is gone up to last mould core 16 embedding, casting through the sprue gate of last mould 4 upper end, make casting liquid get into inside the mould core 16, after the shaping, it carries out the rebound to drive mould 4 through telescopic link 5, take out bed die 7, place the platform upside with bed die 7 after taking out, press downwards, make bottom plate 13 drive thimble 12 upwards remove, thimble 12 is ejecting with the inside finished product of bed die 8, unusual convenient and fast.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. 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.