CN215320273U

CN215320273U - Optical lens cover injection mold with inverted mold core

Info

Publication number: CN215320273U
Application number: CN202120951897.1U
Authority: CN
Inventors: 姜召伟; 周伟伶
Original assignee: Tri-Comms Suzhou Ltd
Current assignee: Tri-Comms Suzhou Ltd
Priority date: 2021-05-06
Filing date: 2021-05-06
Publication date: 2021-12-28
Anticipated expiration: 2031-05-06

Abstract

The utility model discloses an optical lens hood injection mold with an inverted mold core, which is applied to the field of injection molds, and the technical scheme is as follows: the fixed die assembly and the movable die assembly are movably connected in an attaching mode; the fixed die assembly comprises an upper die base, a first die assembly is arranged in the upper die base in a matching mode, a die core is arranged in the first die assembly in a sliding and inverted mode, a male die is arranged at one end of the die core, the male die penetrates out of one end, close to the movable die assembly, of the first die assembly, a through pouring channel is arranged in the die core, the pouring channel penetrates out of the male die to form a main pouring gate, and the main pouring gate is located on the side face of the male die; the technical effect who has is, through the design of mold core inversion, can remain the medial surface at the product with gluing the mouth after moulding plastics, can not influence the smoothness of product lateral surface, and the position design of main runner can prevent the emergence of the phenomenon of becoming angry simultaneously.

Description

Optical lens cover injection mold with inverted mold core

Technical Field

The utility model relates to the technical field of molds, in particular to an optical lens hood injection mold with an inverted mold core.

Background

At present, the chinese patent with publication number CN104029340A discloses an injection mold, which comprises a male mold and a female mold that are oppositely arranged, wherein the male mold and the female mold form a cavity when the male mold and the female mold are closed, a glue inlet injects molten plastic into the cavity, two ends of the glue inlet are respectively arranged at reinforcing ribs, and when the plastic cools, the force can be assisted from the reinforcing ribs in the process of cutting the glue inlet, so as to prevent the formed product from deforming.

Although the traditional injection mold realizes better and more labor-saving rubber opening cutting operation by improving the position of the rubber inlet, cutting marks are left on the outer surface of a product, and when the flatness and the glossiness of the outer surface of the product pile are required, the yield of the product can be greatly reduced by the cutting marks of the rubber inlet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an optical lens cover injection molding assembly with an inverted mold core, which has the advantages that a glue opening can be hidden on the inner surface of a product, so that the glossiness and the flatness of the outer surface of the product are ensured, a limiting pull rod structure is added in the mold, the product can be pulled to be separated from the mold when a movable mold acts, and an additional product ejection mechanism is not needed.

The technical purpose of the utility model is realized by the following technical scheme: an injection mould of an optical lens cover with an inverted mould core,

the fixed die assembly and the movable die assembly are attached and movably connected; the fixed die assembly comprises an upper die base, a first die assembly block is arranged inside the upper die base in a matching mode, a die core is arranged inside the first die assembly block in a sliding and inverted mode, a male die is arranged at one end of the die core and penetrates out of one end, close to the movable die assembly, of the first die assembly block, a running channel penetrating through the die core is arranged inside the die core and penetrates out of the male die to form a main sprue, and the main sprue is located on the side face of the male die.

Through the technical scheme, the movable mould component can move up and down relative to the fixed mould component in a process, the first mould closing module is embedded in the upper mould base, the stability can be guaranteed against moving, the mould core is inversely movably installed in the upper mould base, glue can be injected from the inner side surface of a product when injection moulding is realized through matching a redesigned male mould and a running channel which runs through the male mould, glue injection traces can not be left on the outer side surface of the product, the consistency of the flowing direction of plastic cement can be guaranteed when glue injection is carried out through designing a main pouring gate on the upper side surface of the male mould, so that the occurrence of gas trapping is avoided, and the glossiness and the flatness of the outer surface can be guaranteed.

The utility model is further configured to: the movable die assembly comprises a lower die holder, a second die assembly is arranged on the lower die holder corresponding to the first die assembly, an arc-shaped groove is formed in one end, close to the fixed die assembly, of the second die assembly, and a product cavity is formed between the arc-shaped groove and the convex die after the convex die penetrates into the arc-shaped groove.

Through the technical scheme, the second mold clamping module and the first mold clamping module are in a sealing state when being attached, the plastic can be prevented from overflowing, the groove in the fixed mold component is slightly larger than the convex mold, the working state of the convex mold moves into the arc-shaped groove, a certain space is formed between the working state of the convex mold and the arc-shaped groove, a product cavity is formed, and the plastic flows into the product cavity through the main pouring gate.

The utility model is further configured to: the first die assembly is characterized in that a fixed pressing plate is movably arranged at one end, far away from the male die, of the first die assembly in a laminating mode, the fixed pressing plate is fixedly connected with the die core in a laminating mode, a second pouring gate penetrates through the fixed pressing plate, and the second pouring gate is communicated with the pouring gate.

Through the technical scheme, the fixed pressing plate can move synchronously with the mold core, the mold core is guaranteed not to displace when vibrating, and the second pouring gate is communicated with the pouring gate and used for conveying plastic to the main pouring gate.

The utility model is further configured to: the die comprises an upper die base, an upper die base and an injection molding connecting piece, wherein the upper die base is movably attached to the upper die base, the injection molding connecting piece penetrates through the inner portion of the upper die base, a first sprue is arranged at one end, away from the upper die base, of the injection molding connecting piece, a runner is arranged at one end, close to the upper die base, of the injection molding connecting piece, and the runner is communicated with the first sprue.

Through above-mentioned technical scheme, the plastic flows in from first runner, then gets into the runner to get into the second runner, and then carry out the operation of moulding plastics.

The utility model is further configured to: the inside fixed many connecting rods that are provided with of upper die base, it is corresponding to go up the die carrier inside many connecting rods department is provided with the spout that can supply the connecting rod to slide from top to bottom, connecting rod one end is provided with the connecting rod arch that can prevent the roll-off spout.

Through above-mentioned technical scheme, upper die base and upper die frame use through the cooperation of many connecting rods and spout, can realize sliding from top to bottom and accurate laminating connection, and the connecting rod arch can block when the separation reaches the certain distance between upper die base and the upper die frame the edge of spout to stop the slip operation.

The utility model is further configured to: the lower die holder below laminating is provided with die carrier down, the inside a plurality of spacing pull rods that run through of die carrier down, a plurality of spacing pull rods respectively vertical slip run through behind the die holder with upper die base fixed connection.

Through the technical scheme, the lower die holder and the lower die frame can move back and forth along the plurality of limiting pull rods relative to the upper die holder.

The utility model is further configured to: one end of each limiting pull rod is provided with a pull rod bulge capable of preventing the limiting pull rods from sliding into the lower die base.

Through the technical scheme, when the lower die base and the lower die base move along the limiting pull rod, after the lower die base and the lower die base move to a certain distance, the pull rod protrusion can block the edge of the lower die base, the lower die base and the lower die base stop moving relative to the limiting pull rod, and when external force continues to pull the lower die base, the upper die base continues to move through the limiting pull rod until the connecting rod protrusion blocks the edge of the sliding groove, so that sliding is stopped.

The utility model is further configured to: the product cavity is composed of the first mold clamping block, an arc-shaped groove and the outer wall of the male mold.

Through the technical scheme, the outer wall of the male die and the arc-shaped groove form the inner wall and the outer wall of the product, and the first die blocks form two ends of the product.

In conclusion, the utility model has the following beneficial effects:

1. through setting up the inside wall at the product with main runner, can need not to remain to glue mouthful and polish or cut, through with main runner design in the side of leaning on of terrace die, can guarantee the uniformity of plastic flow direction when the injecting glue to avoid the production of the phenomenon of trapping gas, can guarantee the glossiness and the roughness of surface.

2. After the operation of moulding plastics is accomplished, external force pulling movable mould subassembly is to certain distance after, and spacing pull rod can drive the upper die base motion to drive first compound die block action, when first compound die block action, can drive the outer wall that fashioned product breaks away from the terrace die, the product drops, need not extra product ejection mechanism, and the plastic of main runner is remained simultaneously and can be dragged absolutely, need not extra shearing mouth operation and mechanism.

Drawings

Fig. 1 is a schematic diagram of an overall mechanism of an optical lens cover injection mold with an inverted mold core.

Fig. 2 is an enlarged schematic view of region B in fig. 1.

Fig. 3 is an enlarged schematic view of region a in fig. 2.

Reference numerals: 1. a stationary die assembly; 11. an upper die holder; 12. a first mold clamping module; 13. a mold core; 131. a male die; 132. a pouring channel; 133. a main gate; 14. fixing the pressing plate; 141. a second gate; 15. feeding a mold frame; 151. injection molding a connecting piece; 152. a first gate; 153. a flow channel; 154. a chute; 16. a connecting rod; 161. the connecting rod is convex; 2. a movable die assembly; 21. a lower die holder; 22. a second mold clamping module; 221. an arc-shaped groove; 23. a product cavity; 24. a lower die frame; 241. a limiting pull rod; 242. the pull rod is convex.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, 2 and 3, the optical lens cover injection mold with the inverted mold core comprises a fixed mold component 1 and a movable mold component 2, wherein contact surfaces of the fixed mold component 1 and the movable mold component 2 are finely ground and then attached to each other; the fixed die component 1 comprises an upper die base 11, a first die assembly 12 is installed inside the upper die base 11 in a sealing mode, a die core 13 is arranged inside the first die assembly 12 in a sliding and inverted mode, the outer diameter of the die core 13 from top to bottom is gradually reduced, a male die 131 is arranged at one end, penetrating out of the first die assembly 12, of the die core 13, the male die 131 is integrally hemispherical, a runner 132 penetrating through the die core 13 is arranged inside the die core 13, the runner 132 penetrates out of the male die 131 to form a main runner 133, the main runner 133 is arranged on the upper side face of the male die 131, plastic can be injected from top to bottom, the injection process is smoother, and the problem of air trapping caused by back-and-forth sliding of the plastic is avoided.

Referring to fig. 1, 2 and 3, the movable mold assembly 2 includes a lower mold base 21, a second mold 22 is disposed in the lower mold base 21, the second mold 22 is mounted opposite to the first mold 12, an arc-shaped groove 221 for mounting the male mold 131 is disposed in the middle of the second mold 22, a gap having the same thickness as that of a product is disposed between the arc-shaped groove 221 and the male mold 131, so as to form a product cavity 23, the second mold 22 is in a sealed state at a connection position with the first mold 12, and an inner diameter of the arc-shaped groove 221 is larger than an outer diameter of the male mold 131.

Referring to fig. 1 and 2, a fixed pressure plate 14 is movably attached to one end of the first mold clamping block 12 away from the male mold 131, the fixed pressure plate 14 is installed in the upper mold base 11, a second gate 141 penetrates through the fixed pressure plate 14, the second gate 141 is communicated with the runner 132, and plastic flows into the runner 132 through the second gate 141.

Referring to fig. 1, an upper mold base 15 is movably attached to the upper mold base 11, an injection connecting part 151 is disposed inside the upper mold base 15, a first gate 152 is disposed at one end of the injection connecting part 151, which is far away from the upper mold base 11, a flow channel 153 is disposed at one end of the injection connecting part 151, which is close to the upper mold base 11, and the flow channel 153 is linearly communicated with the inside of the first gate 152.

Referring to fig. 1, two connecting rods 16 are respectively disposed on two sides of the interior of the upper mold base 11, a sliding slot 154 for the connecting rod 16 to slide up and down is disposed in the interior of the upper mold frame 15 corresponding to the connecting rod 16, the inner diameter of the opening of the sliding slot 154 is slightly larger than the outer diameter of the connecting rod 16, and the outer diameter of the connecting rod protrusion 161, which is disposed at one end of the connecting rod 16 and can prevent the connecting rod protrusion 161 from sliding out of the opening of the sliding slot 154, is larger than the inner diameter of the opening of the sliding slot 154.

Referring to fig. 1, a lower die holder 24 is attached to and arranged below the lower die holder 21, two sides inside the lower die holder 24 are respectively provided with a limiting pull rod 241, the limiting pull rods 241 vertically penetrate through the lower die holder 21 and then are fixedly connected with the upper die holder 11 through threads, and a pull rod protrusion 242 capable of preventing the limiting pull rod 241 from sliding into the lower die holder 21 is arranged at one end of the limiting pull rod 241 located in the lower die holder 24.

Referring to fig. 3, the product cavity 23 is composed of the first mold 12, an arc-shaped groove 221, and an outer wall of the male mold 131, the inner wall and the outer wall of the product are respectively attached to the male mold 131 and the arc-shaped groove 221, and a flat surface of the product is attached to the first mold 12.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. An optical lens cover injection mold with an inverted mold core comprises a fixed mold component (1) and a movable mold component (2), wherein the fixed mold component (1) and the movable mold component (2) are movably connected in a fitting manner; the fixed die assembly (1) is characterized by comprising an upper die holder (11), a first die block (12) is arranged in the upper die holder (11) in a matching mode, a die core (13) is arranged in the first die block (12) in a sliding and inverted mode, a male die (131) is arranged at one end of the die core (13), the male die (131) penetrates out of one end, close to the movable die assembly (2), of the first die block (12), a through runner (132) is arranged in the die core (13), a main sprue (133) is formed after the runner (132) penetrates out of the male die (131), and the main sprue (133) is located on the upper side face of the male die (131).

2. The injection mold for the optical lens cover with the inverted mold core as recited in claim 1, wherein the movable mold assembly (2) comprises a lower mold base (21), a second mold block (22) is disposed on the lower mold base (21) corresponding to the first mold block (12), an arc-shaped groove (221) is disposed at one end of the second mold block (22) close to the fixed mold assembly (1), and a product cavity (23) is formed between the arc-shaped groove (221) and the male mold (131) after penetrating through the arc-shaped groove (221).

3. The mold for injection molding of the lens cover with the inverted mold core according to claim 1, wherein a fixed pressure plate (14) is movably attached to one end of the first mold clamping block (12) away from the male mold (131), the fixed pressure plate (14) is fixedly attached to the mold core (13), a second gate (141) is arranged on the fixed pressure plate (14) in a penetrating manner, and the second gate (141) is communicated with the pouring channel (132).

4. The injection mold for the optical lens cover with the inverted mold core as claimed in claim 3, wherein the upper mold base (11) is movably fitted with an upper mold base (15), the upper mold base (15) is internally provided with an injection connecting part (151) in a penetrating manner, one end of the injection connecting part (151) far away from the upper mold base (11) is provided with a first gate (152), one end of the injection connecting part (151) close to the upper mold base (11) is provided with a runner (153), and the runner (153) is communicated with the first gate (152).

5. The injection mold for the optical lens cover with the inverted mold core as claimed in claim 4, wherein a plurality of connecting rods (16) are fixedly arranged inside the upper mold base (11), sliding grooves (154) for the connecting rods (16) to slide up and down are arranged inside the upper mold base (15) at positions corresponding to the plurality of connecting rods (16), and a connecting rod protrusion (161) capable of preventing the connecting rods from sliding out of the sliding grooves (154) is arranged at one end of the connecting rods (16).

6. The injection mold for the optical lens cover with the inverted mold core according to claim 2, wherein a lower mold base (24) is fitted below the lower mold base (21), a plurality of limiting pull rods (241) penetrate through the lower mold base (24), and the limiting pull rods (241) respectively penetrate through the lower mold base (21) in a vertical sliding manner and then are fixedly connected with the upper mold base (11).

7. The injection mold for the optical lens cover with the inverted mold core as claimed in claim 6, wherein one end of the plurality of limiting pull rods (241) is provided with a pull rod protrusion (242) capable of preventing the pull rod from sliding into the lower mold base (21).

8. The inverted-core injection mold for optical lens covers according to claim 2, wherein the product cavity (23) is composed of the first mold piece (12), the arc-shaped groove (221), and the outer wall of the male mold (131).