Eyeglass lens injection mold with exhaust mechanism

Abstract

The utility model provides a spectacle lens injection mold with an exhaust mechanism, which belongs to the field of injection molds and comprises a base, a lower mold is arranged at the top of the base, the middle of the top of the lower mold is connected with the middle of the top of an upper mold in a penetrating manner through a pouring pipe, and a plurality of mold grooves are formed in the side of the top of the lower mold. A plurality of arc-shaped clamping grooves are formed in the edge areas of the inner walls of the multiple mold grooves, the inner walls of the multiple arc-shaped clamping grooves are connected with the bottoms of the multiple exhaust rings in a clamped mode through connecting assemblies, annular grooves are formed in the bottoms of the inner walls of the multiple mold grooves, and ejection assemblies are arranged at the bottoms of the inner walls of the annular grooves. According to the utility model, the plurality of clamping heads are inserted into the plurality of second inserting holes, and are matched with the plurality of limiting nuts to fix the exhaust ring and the arc-shaped clamping block, the arc-shaped clamping block and the arc-shaped clamping groove are clamped, and the plurality of limiting bolts are inserted into the plurality of first inserting holes and the hole grooves to fix the arc-shaped clamping block and the lower die, so that the exhaust ring and the lower die are conveniently mounted.

Description

Technical Field

[0001] The utility model relates to the field of injection molds, in particular to an injection mold for eyeglass lenses with an exhaust mechanism. Background Art

[0002] Eyeglass lenses are transparent materials with one or more curved surfaces made of optical materials such as glass or resin. After polishing, they are often assembled with eyeglass frames to form glasses, which are used to correct the user's vision and obtain a clear field of vision. The production of eyeglass lenses requires the use of special injection molds. The use of injection molds for production and processing can ensure the quality of the lenses. A search of an injection mold for eyeglass lenses with an exhaust mechanism disclosed in application number CN202222693819.3 records that the lenses can be directly polished before demolding to make them smooth and clean without burrs, thereby avoiding scratches on the hands during demolding. The process of secondary grinding and fine grinding of the lens after demolding is eliminated. At the same time, during injection molding, the bubbles retained in the raw material can be promptly and effectively expelled to ensure the production quality of the lens. However, the above description still has the following defects in actual use: the current injection mold for eyeglass lenses is not convenient for installing and replacing its exhaust ring during use, which affects the processing quality after it is damaged. At the same time, the internal grinding method is not suitable for different lens processing and is easy to damage its surface. The grinding vibration method is not enough to eject the lens. Therefore, it is necessary to design a practical injection mold for eyeglass lenses with an exhaust mechanism. Utility Model Content

[0003] The utility model aims to provide an injection mold for eyeglass lenses with an exhaust mechanism to solve the problems raised by the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold for eyeglass lenses with an exhaust mechanism, comprising a base, a lower mold is provided on the top of the base, the middle part of the top of the lower mold is connected with the middle part of the top of the upper mold through a casting tube, a plurality of mold grooves are provided on the side of the top of the lower mold, a plurality of arc-shaped grooves are provided on the edge of the inner wall of the mold grooves, the inner walls of the plurality of arc-shaped grooves are connected with the bottom of a plurality of exhaust rings through a connecting assembly, an annular groove is provided on the bottom of the inner wall of the plurality of mold grooves, and an ejection assembly is provided on the bottom of the inner wall of the annular groove;

[0005] The connecting assembly comprises a plurality of arc-shaped clamping blocks installed on the inner walls of the plurality of arc-shaped clamping grooves, a first arc-shaped groove is provided on one side of the top of the plurality of arc-shaped clamping blocks, two first plug holes are provided on the bottom of the inner walls of the plurality of first arc-shaped grooves, the inner walls of the two first plug holes are threadedly connected with the hole grooves provided on both sides of the bottom of the inner wall of the arc-shaped clamping groove through limiting bolts, a second arc-shaped groove is provided on the other side of the bottom of the plurality of arc-shaped clamping blocks, a plurality of second plug holes are provided on the top of the inner wall of the second arc-shaped groove, the inner walls of the plurality of second plug holes are clamped and connected with a plurality of clamping joints provided on the bottom of the exhaust ring, and limiting nuts are provided on the surfaces of the bottom ends of the plurality of clamping joints;

[0006] The ejection assembly includes an ejection ring installed on the inner wall of the annular groove, the bottom of the ejection ring is fixedly connected to the tops of a plurality of ejection rods, the surfaces of a plurality of the ejection rods are interlaced with the bottom of the inner wall of the annular groove, the bottoms of the plurality of ejection rods are fixedly connected to the surface of the telescopic end of the electric push rod through a movable frame, the bottom of the electric push rod is arranged inside the base, and the top of the telescopic end of the electric push rod is installed and connected to the inner wall of the groove opened at the bottom of the lower mold through an auxiliary component.

[0007] As a preferred solution of the utility model: the auxiliary component includes a mounting block installed on the top of the telescopic end of the electric push rod, the top of the mounting block is fixedly connected with a telescopic rod, the top of the telescopic rod is fixedly connected to the top of the inner wall of the groove through a connecting block, and the surface of the telescopic rod is sleeved with a spring.

[0008] As a preferred solution of the utility model: the inner wall of the first arc-shaped groove is snap-connected with an arc-shaped pad, the bottom of the arc-shaped pad is provided with two snap-connecting grooves, and the inner walls of the two snap-connecting grooves are snap-connected with the top ends of two limit bolts.

[0009] As a preferred solution of the utility model: a plurality of through holes are opened at the bottom of the inner wall of the annular groove, and the inner walls of the plurality of through holes are interlaced and connected with the surfaces of the plurality of ejector rods.

[0010] As a preferred solution of the utility model: a pouring hole is opened in the middle of the bottom of the upper mold, and the inner wall of the pouring hole is interlaced and connected with the surface of the pouring pipe.

[0011] As a preferred solution of the utility model: a plurality of flow channels are opened in the middle area of ​​the top of the lower mold, one end of the plurality of flow channels is connected to the bottom end of the casting pipe, and the other end of the plurality of flow channels extends to the mold groove.

[0012] As a preferred solution of the utility model: a plurality of exhaust grooves are opened on the sides of the bottom of the upper mold, the interior of the upper mold is hollow, the inner walls of the plurality of exhaust grooves are provided with mold cores, and the sides of the inner walls of the plurality of exhaust grooves are engaged with the surfaces of a plurality of exhaust rings.

[0013] As a preferred solution of the utility model: a plurality of mounting grooves are provided on the top of the base, and the inner walls of the plurality of mounting grooves are fixedly connected to the bottom ends of the plurality of electric push rods.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) Inserting a plurality of clamping joints into a plurality of second insertion holes and fixing them with the arc clamping block with a plurality of limiting nuts, thereby fixing the exhaust ring with the arc clamping block, engaging the arc clamping block with the inner wall of the arc clamping groove, inserting a plurality of limiting bolts into a plurality of first insertion holes and hole grooves, thereby fixing the arc clamping block with the lower mold, thereby facilitating the installation and removal of the exhaust ring with the lower mold, and at the same time, the arc pad block engages with the inner wall of the first arc groove, and the two clamping grooves at the bottom thereof engage with the top ends of the two limiting bolts, thereby filling and sealing the arc clamping groove area, thereby avoiding the occurrence of a gap after the upper mold and the lower mold are connected, which affects the injection molding of the lens;

[0016] (2) A plurality of movable frames are driven to move by a plurality of electric push rods, and the movable frames drive a plurality of ejector rods to pass through a plurality of through holes, and eject the ejector rings in a plurality of annular grooves, and drive a plurality of lenses in mold grooves to move out to realize unloading. At the same time, the telescopic end of the electric push rod moves upward, and the mounting block moves, and the mounting block cooperates with the connecting block on the inner wall of the groove to squeeze the telescopic rod and the spring, so as to avoid the ejection force being too large to affect the quality of the lens, thereby improving the effectiveness of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the utility model;

[0019] Figure 3 It is one of the partial structural schematic diagrams of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the connection assembly of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the ejection assembly of the utility model.

[0022] In the figure: 1. base; 11. mounting groove; 2. lower mold; 21. casting pipe; 22. mold groove; 23. arc-shaped card slot; 24. exhaust ring; 25. annular groove; 26. hole groove; 27. card joint; 28. limit nut; 29. ​​groove; 210. through hole; 211. runner; 3. upper mold; 31. casting hole; 32. exhaust groove; 33. mold core; 4. connecting assembly; 41. arc-shaped card block; 42. first arc-shaped groove; 43. first plug hole; 44. limit bolt; 45. second arc-shaped groove; 46. second plug hole; 47. arc-shaped pad; 5. ejector assembly; 51. ejector ring; 52. ejector rod; 53. movable frame; 54. electric push rod; 55. mounting block; 56. telescopic rod; 57. connecting block; 58. spring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 5 , an injection mold for eyeglass lenses with an exhaust mechanism, comprising a base 1, a lower mold 2 is provided on the top of the base 1, the middle part of the top of the lower mold 2 is connected with the middle part of the top of the upper mold 3 through a casting tube 21, a plurality of mold grooves 22 are provided on the side of the top of the lower mold 2, a plurality of arc-shaped grooves 23 are provided on the edge of the inner wall of the plurality of mold grooves 22, the inner walls of the plurality of arc-shaped grooves 23 are connected with the bottom of a plurality of exhaust rings 24 through a connecting component 4, an annular groove 25 is provided on the bottom of the inner wall of the plurality of mold grooves 22, and an ejection component 5 is provided on the bottom of the inner wall of the annular groove 25;

[0025] See also Figure 4 The connecting assembly 4 includes a plurality of arc-shaped clamping blocks 41 installed on the inner walls of the plurality of arc-shaped clamping grooves 23, a first arc-shaped groove 42 is provided on one side of the top of the plurality of arc-shaped clamping blocks 41, two first plug holes 43 are provided on the bottom of the inner walls of the plurality of first arc-shaped grooves 42, the inner walls of the two first plug holes 43 are threadedly connected with the hole grooves 26 provided on both sides of the bottom of the inner walls of the arc-shaped clamping grooves 23 through limiting bolts 44, a second arc-shaped groove 45 is provided on the other side of the bottom of the plurality of arc-shaped clamping blocks 41, a plurality of second plug holes 46 are provided on the top of the inner walls of the second arc-shaped grooves 45, the inner walls of the plurality of second plug holes 46 are engaged and connected with a plurality of clamping joints 27 provided on the bottom of the exhaust ring 24, and limiting nuts 28 are provided on the surfaces of the bottom ends of the plurality of clamping joints 27.

[0026] During specific use: insert several clamping joints 27 into several second insertion holes 46, and cooperate with several limit nuts 28 to install and fix them with the arc block 41, so as to fix the exhaust ring 24 with the arc block 41, and engage the arc block 41 with the inner wall of the arc slot 23, and insert several limit bolts 44 into several first insertion holes 43 and the hole groove 26, so as to fix the arc block 41 with the lower mold 2, so as to facilitate the installation and disassembly of the exhaust ring 24 and the lower mold 2, and at the same time, the arc pad 47 engages with the inner wall of the first arc slot 42, and the two clamping grooves at the bottom thereof engage with the top ends of the two limit bolts 44, so as to fill and seal the arc slot 23 area to avoid the occurrence of gaps after the upper mold 2 and the lower mold 3 are connected, which affects the injection molding of the lens.

[0027] See also Figure 5 The ejection assembly 5 includes an ejection ring 51 installed on the inner wall of the annular groove 25, the bottom of the ejection ring 51 is fixedly connected to the tops of a plurality of ejection rods 52, the surfaces of the plurality of ejection rods 52 are interlaced with the bottom of the inner wall of the annular groove 25, the bottoms of the plurality of ejection rods 52 are fixedly connected to the surface of the telescopic end of the electric push rod 54 through a movable frame 53, the bottom of the electric push rod 54 is arranged inside the base 1, and the top of the telescopic end of the electric push rod 54 is installed and connected to the inner wall of the groove 29 provided at the bottom of the lower mold 2 through an auxiliary component.

[0028] The auxiliary component includes a mounting block 55 mounted on the top of the telescopic end of the electric push rod 54, a telescopic rod 56 is fixedly connected to the top of the telescopic rod 56, the top of the telescopic rod 56 is fixedly connected to the top of the inner wall of the groove 29 through a connecting block 57, and a spring 58 is sleeved on the surface of the telescopic rod 56.

[0029] During specific use: a number of electric push rods 54 drive a number of moving frames 53 to move, and the moving frames 53 drive a number of ejector rods 52 to pass through a number of through holes 210, and eject the ejector rings 51 in a number of annular grooves 25, and drive a number of lenses in the mold grooves 22 to move out to achieve unloading. At the same time, the electric push rod 54 drives the mounting block 55 to move during the upward movement of the telescopic end, and the mounting block 55 cooperates with the connecting block 57 on the inner wall of the groove 29 to squeeze the telescopic rod 56 and the spring 58, so as to avoid excessive ejection force affecting the quality of the lens and improve the effectiveness of the device.

[0030] See also Figure 2 , Figure 4 The inner wall of the first arc-shaped groove 42 is snap-connected with an arc-shaped cushion block 47 , and the bottom of the arc-shaped cushion block 47 is provided with two snap-connecting grooves, and the inner walls of the two snap-connecting grooves are snap-connected with the top ends of the two limit bolts 44 .

[0031] During specific use: the arc-shaped gasket 47 is engaged with the inner wall of the first arc-shaped groove 42, and the two engaging grooves at its bottom are engaged with the top ends of the two limiting bolts 44, thereby filling and sealing the arc-shaped groove 23 area to avoid the formation of gaps after the upper mold 2 and the lower mold 3 are connected, which affects the injection molding of the lens.

[0032] See also Figure 2 A plurality of through holes 210 are formed at the bottom of the inner wall of the annular groove 25 , and the inner walls of the plurality of through holes 210 are interlaced and connected with the surfaces of the plurality of ejection rods 52 .

[0033] During specific use, the surfaces of the plurality of ejection rods 52 are interlaced and connected with the inner walls of the plurality of through holes 210 , so as to facilitate ejection of the ejection ring 51 .

[0034] See also Figure 1 A pouring hole 31 is opened in the middle of the bottom of the upper mold 3, and the inner wall of the pouring hole 31 is interlaced and connected with the surface of the pouring pipe 21.

[0035] When in use, the surface of the casting tube 21 is inserted and engaged with the inner wall of the casting hole 31, so that the device can be used for lens injection molding.

[0036] See also Figure 2 A plurality of flow channels 211 are opened in the middle area of ​​the top of the lower mold 2 , one end of the plurality of flow channels 211 is connected to the bottom end of the casting pipe 21 , and the other end of the plurality of flow channels 211 extends to the mold groove 22 .

[0037] When used specifically, a plurality of flow channels 211 deliver the poured injection liquid into a plurality of mold grooves 22 to realize the injection molding of the lens.

[0038] See also Figure 3 A plurality of exhaust grooves 32 are provided on the sides of the bottom of the upper mold 3 . The interior of the upper mold 3 is hollow. The inner walls of the plurality of exhaust grooves 32 are provided with mold cores 33 . The sides of the inner walls of the plurality of exhaust grooves 32 are engaged with the surfaces of the plurality of exhaust rings 24 .

[0039] When used specifically, the inner walls of the exhaust grooves 32 engage with the surfaces of the exhaust rings 24 , and the air in the injection liquid is discharged by cooperating with the loose and porous design of the exhaust rings 24 and the air holes on the inner walls of the exhaust grooves 32 .

[0040] See also Figure 2 A plurality of mounting grooves 11 are provided on the top of the base 1 , and the inner walls of the plurality of mounting grooves 11 are fixedly connected to the bottom ends of the plurality of electric push rods 54 .

[0041] During specific use, the bottom ends of the plurality of electric push rods 54 are fixedly connected to the inner walls of the plurality of mounting grooves 11 , so as to facilitate their installation and fixing to the base 1 .

[0042] When in use, insert a plurality of clamping joints 27 into a plurality of second insertion holes 46, and cooperate with a plurality of limiting nuts 28 to install and fix them with the arc-shaped clamping block 41, so as to fix the exhaust ring 24 with the arc-shaped clamping block 41, and engage the arc-shaped clamping block 41 with the inner wall of the arc-shaped clamping groove 23, and insert a plurality of limiting bolts 44 into a plurality of first insertion holes 43 and the hole groove 26, so as to fix the arc-shaped clamping block 41 with the lower mold 2, so as to facilitate the installation and disassembly of the exhaust ring 24 with the lower mold 2, and at the same time, the arc-shaped pad 47 engages with the inner wall of the first arc-shaped groove 42, and the two clamping grooves at the bottom thereof engage with the top ends of the two limiting bolts 44, so as to fill the arc-shaped groove 23 area. The sealing is performed to avoid gaps after the upper mold 2 and the lower mold 3 are connected, which would affect the injection molding of the lens; a plurality of electric push rods 54 drive a plurality of moving frames 53 to move, and the moving frames 53 drive a plurality of ejector rods 52 to pass through a plurality of through holes 210, and eject the ejector rings 51 in a plurality of annular grooves 25, and drive a plurality of lenses in the mold grooves 22 to move out to realize unloading, and at the same time, the electric push rod 54 drives the mounting block 55 to move during the upward movement of the telescopic end, and the mounting block 55 cooperates with the connecting block 57 on the inner wall of the groove 29 to squeeze the telescopic rod 56 and the spring 58, thereby avoiding excessive ejection force affecting the quality of the lens and improving the effectiveness of the device.

[0043] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. An injection mold for eyeglass lenses having an exhaust mechanism, characterized in that: The invention comprises a base (1), wherein a lower mold (2) is provided on the top of the base (1), the middle part of the top of the lower mold (2) is connected to the middle part of the top of the upper mold (3) through a pouring pipe (21), a plurality of mold grooves (22) are provided on the side of the top of the lower mold (2), a plurality of arc-shaped grooves (23) are provided on the edge of the inner wall of the plurality of mold grooves (22), the inner walls of the plurality of arc-shaped grooves (23) are connected to the bottom of a plurality of exhaust rings (24) through a connecting assembly (4), an annular groove (25) is provided on the bottom of the inner wall of the plurality of mold grooves (22), and an ejection assembly (5) is provided on the bottom of the inner wall of the plurality of mold grooves (22); The connecting assembly (4) comprises a plurality of arc-shaped clamping blocks (41) mounted on the inner walls of the plurality of arc-shaped clamping grooves (23); a first arc-shaped groove (42) is provided on one side of the top of the plurality of arc-shaped clamping blocks (41); two first plug holes (43) are provided on the bottom of the inner walls of the plurality of first arc-shaped grooves (42); the inner walls of the two first plug holes (43) are threadedly connected to the hole grooves (26) provided on both sides of the bottom of the inner wall of the arc-shaped clamping groove (23) through limiting bolts (44); a second arc-shaped groove (45) is provided on the other side of the bottom of the plurality of arc-shaped clamping blocks (41); a plurality of second plug holes (46) are provided on the top of the inner wall of the second arc-shaped groove (45); the inner walls of the plurality of second plug holes (46) are engaged with a plurality of clamping joints (27) provided on the bottom of the exhaust ring (24); and limiting nuts (28) are provided on the surfaces of the bottom ends of the plurality of clamping joints (27); The ejection assembly (5) comprises an ejection ring (51) mounted on the inner wall of the annular groove (25); the bottom of the ejection ring (51) is fixedly connected to the tops of a plurality of ejection rods (52); the surfaces of a plurality of ejection rods (52) are interlacedly connected to the bottom of the inner wall of the annular groove (25); the bottoms of the plurality of ejection rods (52) are fixedly connected to the surface of the telescopic end of an electric push rod (54) via a movable frame (53); the bottom of the electric push rod (54) is arranged inside the base (1); the top of the telescopic end of the electric push rod (54) is mounted and connected to the inner wall of a groove (29) provided at the bottom of the lower mold (2) via an auxiliary assembly.

2. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: The auxiliary component comprises a mounting block (55) mounted on the top of the telescopic end of the electric push rod (54); a telescopic rod (56) is fixedly connected to the top of the mounting block (55); the top of the telescopic rod (56) is fixedly connected to the top of the inner wall of the groove (29) via a connecting block (57); and a spring (58) is sleeved on the surface of the telescopic rod (56).

3. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: The inner wall of the first arc-shaped groove (42) is snap-connected with an arc-shaped cushion block (47), and the bottom of the arc-shaped cushion block (47) is provided with two snap-connecting grooves, and the inner walls of the two snap-connecting grooves are snap-connected with the top ends of two limit bolts (44).

4. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: A plurality of through holes (210) are provided at the bottom of the inner wall of the annular groove (25), and the inner walls of the plurality of through holes (210) are interlaced and connected with the surfaces of the plurality of ejection rods (52).

5. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: A pouring hole (31) is provided in the middle of the bottom of the upper mold (3), and the inner wall of the pouring hole (31) is interlaced and connected with the surface of the pouring pipe (21).

6. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: A plurality of flow channels (211) are provided in the middle region of the top of the lower mold (2), one end of the plurality of flow channels (211) is connected to the bottom end of the casting pipe (21), and the other end of the plurality of flow channels (211) extends to the mold groove (22).

7. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: A plurality of exhaust grooves (32) are provided on the sides of the bottom of the upper mold (3); the interior of the upper mold (3) is hollow; the inner walls of the plurality of exhaust grooves (32) are provided with mold cores (33); and the sides of the inner walls of the plurality of exhaust grooves (32) are engaged with the surfaces of the plurality of exhaust rings (24).

8. The injection mold for eyeglass lenses with an exhaust mechanism according to claim 1, characterized in that: A plurality of mounting grooves (11) are provided on the top of the base (1), and the inner walls of the plurality of mounting grooves (11) are fixedly connected to the bottom ends of a plurality of electric push rods (54).

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