TWI610789B - Mold for manufacturing optical lenses - Google Patents

Description

Mold for manufacturing optical lenses

The present invention relates to a mold, and more particularly to a mold structure for manufacturing an optical lens which solves the error caused by the reciprocating displacement of the male and female mold opening and closing molds, resulting in defective products.

As shown in FIG. 1 , a conventional forming mold for manufacturing an optical lens mainly includes a male mold base 2 and a female mold base 1 , and a male mold base 4 is embedded in the male mold base 2 . The seat 1 is embedded with a female mold core 3 facing the male mold core 4, and a male sleeve 4 is sleeved around the male mold core 4, and the male mold core 4 and the female mold core 3 are combined to form a cavity. The space of 6 is on the male mold base 2, and after the male and female mold bases 2 and 1 are closed, the material of the forming lens is injected into the mold cavity 6 to form an optical lens finished product 7, When the mold is opened, the female mold base 1 firstly disengages from the male mold base 2 to expose the optical lens finished product 7, and the bottom of the male and female mold core 4 receives a power P to push out the optical lens finished product 7 to be topped out of the The parting line of the mold base 2 facilitates the subsequent mechanical arm to grip the finished optical lens 7.

However, in the above-mentioned forming mold for manufacturing an optical lens, since the male mold core 4 is continuously pushed out by the power to eject the optical lens finished product 7, the male mold core 4 and the male mold base 2 are supported by the ball sleeve 5 The rolling of the ball causes the male mold core 4 to smoothly reciprocate and retract to the female mold base 1. Therefore, the ball on the ball sleeve 5 will wear out for a considerable period of time, so that the center line of the mold core 4 and the mold core 3 can not be butted to form a collinear line, so that the optical lens finished product 7 after the film forming is produced. Bad product problem.

Accordingly, the main object of the present invention is to provide a mold for manufacturing an optical lens to solve the conventional use of a mold for manufacturing an optical lens for a considerable period of time, which may cause wear of the mold core, resulting in a center line of the male and female molds during mold clamping. It is impossible to dock, and the optical lens formed by the filling has problems of defective products.

In order to achieve the above object, the present invention discloses a mold for manufacturing an optical lens, comprising: a mother template, a carrier plate, and a male template, wherein the mother template is provided with a plurality of molding portions; the carrier is coupled to the mother template Facing, the carrier plate is provided with a set of matching holes for arranging a push rod to move toward the mother template; the public form is disposed between the support plate and the mother template, the male formwork surface a sliding slot is disposed in the direction of the parent template, the sliding slot is configured with a base, and the male template is connected to the base by a plurality of connecting elements, the base is provided with a plurality of limiting holes, the limiting hole and the pressing The mold portion is opposite to and engages with a push pin and allows the push pin to be displaced toward the mother plate. The plate is coupled to the male plate by a plurality of positioning pins to axially displace the male plate along the positioning pin. Between the push pin and the die portion, a cavity for forming a finished lens is formed on the base.

Wherein, the mother template is disposed on a first fixing plate, the carrier plate is disposed on a second fixing plate, and the second fixing plate is disposed adjacent to the direction of the carrier plate, and the concave plate is assembled with a top And the second fixed plate is provided with a chamber communicating with the concave chamber, the chamber is for a power source to push the ejection member Push the push rod.

Wherein, the mother template is embedded with a plurality of inlaid columns, each of the inlaid columns is provided with a cone, the public template is provided with a plurality of guiding columns, the guiding column is matched with the cone, and the first fixing plate and the embedded column are borrowed A screwing element is connected together.

The guiding column is embedded in the male template, and the male template is adjacent to the end of the female template and protrudes from the male template to fit the tapered template.

The carrier plate is screwed to the second fixing plate by a plurality of screws.

Wherein, the male template is embedded with a plurality of sleeves protruding from the bottom surface of the sliding slot, so that the base forms a gap with the sliding slot for the pusher pin to push out the finished lens, the connecting component is The bolt has a head, the carrier plate is provided with a plurality of countersunk holes, the countersunk hole is for the bolt to penetrate and pass through the sleeve of the male template and then screwed with the base, the head is subject to the sink The resistance of the head hole is limited.

Wherein, the set of matching holes is such that the fisheye hole has a large diameter end and a small diameter end, and a shoulder is formed between the large diameter end and the small diameter end of the pair of matching holes, and the push rod is resisted by the shoulder a flange.

The limiting hole has a large diameter end adjacent to the male template and a small diameter end adjacent to the mother template, forming a barrier wall, and the large diameter end of the limiting hole cooperates with the push pin and allows The pusher pin is telescopically displaced in the direction of the mother template.

Thereby, the carrier plate is fixed to the second fixing plate by screwing the plurality of screws to the second fixing plate, and the base is screwed together with the carrier plate by the connecting member, so when the male template is When the push rod is pushed, the male template is displaced by the axial direction of the positioning pins, so that the male template is moved into contact with the bottom surface of the base, so as to drive the push mold pin to eject the finished lens product in the cavity. And each of the guiding columns of the male template is adjacent to the end of the female template and protrudes from the common template to be matched with the cone. When the mold is closed, the center line of the cone is automatically collocated, and then The center line of the push pin is collinearly connected with the center line of the mold post, thereby solving the problem that the conventional female mold core is continuously pushed out to push out the optical lens product, and the female mold core is returned to the female mold base. The rolling of the ball on the ball sleeve promotes the smooth expansion and contraction of the female mold, and the ball on the ball sleeve wears for a relatively long time, so that the center line of the female mold and the male mold is closed. Unable to The collinear line causes the defective optical product to be defective in the finished optical lens after the molding.

(known)

P‧‧‧Power

1‧‧‧Female mold base

2‧‧‧Model seat

3‧‧‧Female model

4‧‧‧Male model

5‧‧‧ Ball sleeve

6‧‧‧ cavity

7‧‧‧Lens finished

(this invention)

P‧‧‧ power source

L‧‧‧分模线

T‧‧‧ gap

100‧‧‧Lens finished

10‧‧‧First fixed plate

11‧‧‧ mother template

12‧‧‧Inlay

121‧‧‧ cone pit

13‧‧‧Model column

131‧‧‧Molding Department

14‧‧‧ screw components

20‧‧‧Second fixed plate

201‧‧‧ screws

202‧‧ ‧ alcove

203‧‧‧ chamber

21‧‧‧ board

211‧‧‧ matching holes

212‧‧‧ shoulder

213‧‧‧Pushing rod

214‧‧‧Flange

215‧‧‧ countersunk hole

216‧‧‧Locating pins

22‧‧‧public template

221‧‧ ‧ chute

222‧‧‧ Pedestal

223‧‧‧Limited holes

224‧‧ ‧ retaining wall

225‧‧‧ casing

226‧‧‧ cavity

23‧‧‧Drawing pin

231‧‧‧End face

24‧‧‧ Guide column

25‧‧‧Connecting components

26‧‧‧Top pieces

Fig. 1 is a schematic view showing a closed mold state of a conventional molding die for manufacturing an optical lens.

2 is a schematic view showing a mold opening state of a conventional molding die for manufacturing an optical lens.

FIG. 3 is a schematic plan view showing a closed mode state according to an embodiment of the present invention.

4 is a schematic plan view showing a state of a mold opening according to an embodiment of the present invention.

Figure 5 is a partially enlarged detail view of an embodiment of the present invention.

The detailed description of the present invention and the technical description of the present invention are further illustrated by the embodiments, but it should be understood that these embodiments are for illustrative purposes only and are not to be construed as limiting.

Referring to FIG. 3 to FIG. 5 , the present invention discloses a mold for manufacturing an optical lens, comprising: a first fixing plate 10 , a mother template 11 , a second fixing plate 20 , a bearing plate 21 , and a male template 22 . Between the carrier plate 21 and the mother template 11.

The first fixing plate 10 is fixed to the second fixing plate 20 in the direction of the second fixing plate 20, and the mother template 11 is provided with at least one cone 121 and embedded with a plurality of mold columns 13 facing the mold column 13 A stamping portion 131 is disposed in the direction of the main template 22, and in the embodiment, the female template 11 is embedded with a plurality of studs 12, and the taper 121 is disposed on the stud 12, the first fixing plate 10 and the stud The 12 series are screwed together by a screwing element 14.

The second fixing plate 20 is disposed in the direction of the first fixing plate 10, and the carrier plate 21 is screwed together with the second fixing plate 20 by a plurality of screws 201, the second fixing plate An alcove 202 is disposed adjacent to the carrier plate 21 in the direction of the carrier plate 21, and the recessed chamber 202 is assembled with a piece of ejector member 26, and the recessed chamber 202 allows the ejector member 26 to push toward the male template 22 The depth of the distance is such that the second fixing plate 20 is provided with a chamber 203 communicating with the recess 202. The chamber 203 is for a power source P such as a pneumatic rod to push the ejection member 26.

The bearing plate 21 is provided with a plurality of matching holes 211, wherein the set of matching holes 211 is a large diameter end and a small diameter end of the fish eye hole having different directions, and between the large diameter end and the small diameter end of the set of matching holes 211 Forming a shoulder portion 212, the group of matching holes 211 is provided with a pushing rod 213, and one end of the pushing rod 213 receives the pushing of the ejection member 26, so that the other end of the pushing rod 213 pushes the male template 22 toward the female The ejector 11 is directionalally displaced. The urging rod 213 has a flange 214 which is resisted by the shoulder 212. The male template 22 is disposed with a sliding slot 221 facing the female template 11 and at least one push pin 23 is embedded therein. The stencil 221 is configured with a pedestal 222 having a depth greater than the thickness of the pedestal 222. The male template 22 and the female template 11 are closed to have a parting line L. The pedestal 222 A surface of the parent template 11 is flush with the parting line L. The base 222 is provided with a limiting hole 223 facing the stamping portion 131 of the first mold pillar 13 and the pusher pin 23 The two ends of the limiting hole 223 have a large diameter end adjacent to the male template 22, and a small diameter end is adjacent to the mother template 11 and is stepped and formed with a blocking wall 224. The large-diameter end of the position hole 223 cooperates with the push-pull pin 23 and allows the push-pull pin 23 to be telescopically displaced in the direction of the female die plate 11. The retaining wall 224 blocks the push-pull pin 23 from moving toward the female die plate 11. A die hole 226 is formed on the base 222 between the end surface 231 of the die pin 23 adjacent to the die plate 11 and the die portion 131. The die plate 22 is embedded in parallel with the die plate 22 The plurality of guiding posts 24 of the die pin 23 and the plurality of sleeves 225 protrude from the bottom surface of the sliding slot 221, so that a gap t is formed between the base 222 and the sliding 221, and the cavity is formed. The depth of 226 is equal to the gap t to allow the male template 22 to be displaced in the direction of the mother template 11 so that the displacement of the push pin 23 with the male template 22 The lens finished product 100 is pushed out on the surface of the parting line L, which facilitates the subsequent gripping of the lens finished product 100 by the mechanical arm. The carrier plate 21 and the male template 22 are connected by a plurality of positioning pins 216, so that the male template 22 is along the The positioning pin 216 is axially displaced, and the guiding post 24 faces the stud 12 of the mother template 11 . The guiding post 24 is tapered toward the male template 22 adjacent to one end of the female template 11 . And cooperate with the taper 121.

Moreover, the carrier plate 21 is provided with a plurality of counterbore holes 215, which are provided with a connecting member 25 such as a bolt, and the connecting member 25 passes through the sleeve 225 of the male die plate 22 and the base plate 222. Screwed, the connecting element 25 has a head that is larger than its stem diameter, the head being subject to the resisting restriction of the counterbore 215.

With the above structure, please refer to FIG. 3 and FIG. 4 when the mold is opened. First, the first fixing plate 10 drives the mother template 11 away from the parting line 22 to leave the parting line L, and the lens finished product 100 of the cavity 226 can be exposed. The ejector member 26 of the second fixing plate 20 is pushed by the power source to push the push rod 213 toward the mother template 11. The male template 22 is displaced toward the mother template 11 and drives the push mold. The pin 23 is ejected in the direction of the mother template 11 to push the lens finished product 100 formed in the cavity 226 out of the parting line L, so that the subsequent robot arm (not shown) can pinch the lens finished product 100.

The yoke 21 is fixed to the second fixing plate 20 by the plurality of screws 201 and the second fixing plate 20, and the pedestal 222 is screwed together with the carrier 21 by the connecting members 25, so When the male die plate 22 is pushed by the push rod 213, the male die plate 22 can be displaced along the axial direction of the positioning pin 216, so that the male die plate 22 is pushed into contact with the bottom surface of the base plate 222, and the pusher pin 23 is driven out. The formed lens 100 in the cavity 226 is formed, and the guiding post 24 is adjacent to the end of the female template 11 and protrudes from the male template 22 to cooperate with the tapered hole 121, and automatically closes the mold. Abutting the collinear line with the center line of the cone 121, so that the center line of the push pin 23 and the mold post 13 The center line is connected to the collinear line, so as to solve the conventional example, the female mold core of FIG. 1 and 2 is continuously powered to push out the optical lens product, and the female mold core reciprocates and retracts to the female mold base by the ball sleeve. After a certain period of time, the ball on the ball sleeve will wear, so that the center line of the mold core and the mold core can not be collocated, which causes the finished lens after the mold to be a defective product.

The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are all It is still within the scope of the invention patent.

P‧‧‧ power source

L‧‧‧分模线

T‧‧‧ gap

10‧‧‧First fixed plate

11‧‧‧ mother template

12‧‧‧Inlay

121‧‧‧ cone pit

13‧‧‧Model column

131‧‧‧Molding Department

14‧‧‧ screw components

20‧‧‧Second fixed plate

201‧‧‧ screws

202‧‧ ‧ alcove

203‧‧‧ chamber

21‧‧‧ board

211‧‧‧ matching holes

212‧‧‧ shoulder

213‧‧‧Pushing rod

214‧‧‧Flange

215‧‧‧ countersunk hole

216‧‧‧Locating pins

22‧‧‧public template

221‧‧ ‧ chute

222‧‧‧ Pedestal

223‧‧‧Limited holes

224‧‧ ‧ retaining wall

225‧‧‧ casing

226‧‧‧ cavity

23‧‧‧Drawing pin

231‧‧‧End face

24‧‧‧ Guide column

25‧‧‧Connecting components

26‧‧‧Top pieces

Claims (8)

A mold for manufacturing an optical lens, comprising: a mother template having a plurality of die portions; a carrier plate facing the mother template, the carrier plate being provided with a set of matching holes, the set of holes for the group a pusher is disposed in the direction of the mother template; a male form is disposed between the carrier and the female template, and the male template is provided with a sliding slot facing the female template, and the sliding slot is provided with a base The stencil is connected to the pedestal by a plurality of connecting elements, the pedestal is provided with a plurality of limiting holes, the limiting hole is opposite to the embossing portion and cooperates with a push pin and allows the push pin to The stencil is moved in the direction of the stencil, and the stencil is connected to the locating pin through the plurality of locating pins, so that the male stencil is axially displaced along the locating pin, and the dies and the embossing portion are formed with a lens finished product. A cavity is placed on the base. The mold of claim 1, wherein the mother template is disposed on a first fixing plate, the carrier is disposed on a second fixing plate, and the second fixing plate is adjacent to the bearing plate. An alcove is disposed, the recessing chamber is configured with an ejection member, and the recessing chamber allows a distance from the ejecting member to the top of the male template, and the second fixing plate is provided with a chamber communicating with the concave chamber. The chamber is provided by a power source to push the ejection member to push the push rod. The mold of claim 2, wherein the mother template is embedded with a plurality of columns, each of the columns is provided with a cone, the common template is provided with a plurality of guiding columns, and the guiding column is matched with the cone The first fixing plate and the stud are connected by a screwing element. The mold of claim 3, wherein the guide post is embedded in the male template, and the male template is tapered toward the male template adjacent to the end of the female template. Pit fit. The mold of claim 2, wherein the carrier is screwed to the second fixing plate by a plurality of screws. The mold of claim 1, wherein the male template is embedded with a plurality of sleeves protruding from a bottom surface of the sliding slot to form a gap between the base and the sliding slot. The pusher pin pushes out the finished lens, the connecting component is a bolt having a head, the carrier is provided with a plurality of counterbores, the counterbore is for the bolt to penetrate and pass through the sleeve of the male template The base is screwed and the head is subject to the resistance of the counterbore. The mold according to claim 1, wherein the group of holes has a large diameter end and a small diameter end, and a large diameter end and a small diameter end of the set of holes are formed. A shoulder having a flange that is resisted by the shoulder. The mold of claim 1, wherein the limiting hole has a large diameter end adjacent to the male template and a small diameter end adjacent to the mother template is stepped to form a retaining wall, the limiting hole The large diameter end cooperates with the push pin and allows the push pin to be telescopically displaced toward the mother template.