Automatic mold opening device for lens

Abstract

The utility model relates to an automatic mould opening device of a lens, which comprises a double-shaft movement mechanism, a cutter angle rotating mechanism, a mould opening cutter and a lens blocking mechanism, the double-shaft movement mechanism is used for adjusting the position between the mould opening cutter and a lens mould, and the cutter angle rotating mechanism is used for adjusting the angle between the mould opening cutter and the lens mould; a lens mold to be opened is arranged in the lens positioning jig; the lens manipulator is used for placing a lens mold to be opened in the lens positioning jig; the lens blocking mechanism is used for limiting the lens mold. According to the automatic mold opening device for the lens, the lens mold can be automatically opened, the processed resin lens subjected to injection molding is separated from the lens mold, the automation degree is high, manpower is saved, the positioning precision of mold opening is improved, the damage of manpower to the lens and the mold is reduced, the cost is reduced, and the production efficiency is improved. The defective rate is reduced, and in addition, the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of lens manufacturing technology, and in particular to an automatic lens mold opening device. Background Technology

[0002] Currently, resin lenses are the most commonly used type of eyeglass lenses. In the production process of resin lenses, a lens mold is first used to close the mold, then resin material is poured into the closed lens mold, and then cured. After molding, the mold is opened.

[0003] In existing technologies, the methods for opening lens molds are either manual operation by operators or the use of semi-automatic equipment.

[0004] The manual operation involves first manually fixing the lens mold, then aligning the mold-opening blade with the gap in the lens mold, and finally striking the mold-opening blade with a hammer to separate the lens mold. However, this method is entirely manual, which is not only costly and inefficient, but also prone to damaging the lens when striking the mold-opening blade with a hammer, thus reducing product quality.

[0005] For example, Chinese Patent CN206840515U discloses a horizontal resin lens mold opening device, which is a semi-automatic device. It includes a base, on which a clamping device, a support platform, a movable mold opening knife component, and a movable eccentric wheel are arranged sequentially from left to right. The movable mold opening knife component and the movable eccentric wheel are movably connected. The movable mold opening knife component is provided with a mold opening cutter head, and the movable eccentric wheel is provided with a handle. Moving the handle causes the movable eccentric wheel to rotate, driving the movable mold opening knife component to perform mold opening work.

[0006] Both manual and semi-automated equipment require a certain amount of human labor, and these two production methods can no longer meet the pace of automated production. Utility Model Content

[0007] Therefore, the technical problem to be solved by this utility model is to overcome the fact that the existing technology uses manual methods for lens mold opening, which can only demold one lens at a time, resulting in high labor intensity, low efficiency, and high labor costs; and that the use of semi-automated equipment not only requires a certain amount of manpower, but also cannot be adapted to fully automated production lines.

[0008] To solve the above-mentioned technical problems, this utility model provides an automatic mold opening device for lenses, comprising: a dual-axis motion mechanism; a tool angle rotation mechanism connected to the dual-axis motion mechanism; a mold opening tool disposed on the tool angle rotation mechanism, wherein the dual-axis motion mechanism is used to adjust the position between the mold opening tool and the lens mold, and the tool angle rotation mechanism is used to adjust the angle between the mold opening tool and the lens mold; a lens positioning fixture containing the lens mold to be opened; a lens robot for placing the lens mold to be opened into the lens positioning fixture; and a lens blocking mechanism disposed on the other side of the lens positioning fixture opposite to the mold opening tool, wherein the lens blocking mechanism is used to limit the movement of the lens mold. This automatic mold opening device for lenses can automatically open the lens mold, separating the processed injection-molded resin lens from the lens mold. It has a high degree of automation, saves manpower, improves the positioning accuracy of mold opening, reduces manual damage to the lens and mold, lowers costs, reduces the defect rate, and also improves production efficiency.

[0009] In one embodiment of this utility model, the dual-axis motion mechanism includes a horizontal linear module, a horizontal support plate, a vertical support plate, and a vertical linear module. The horizontal support plate and the slider of the horizontal linear module are connected. The vertical support plate is fixedly mounted on the horizontal support plate. The vertical linear module is mounted on the vertical support plate. The tool angle rotation mechanism is connected to the slider of the vertical linear module.

[0010] In one embodiment of this utility model, the tool angle rotation mechanism includes a mounting base, a motor mounting bracket, a drive motor, and a tool holder. The mounting base is connected to a dual-axis motion mechanism, the motor mounting bracket is fixedly mounted on the mounting base, the drive motor is mounted on the motor mounting bracket, the tool holder is connected to the drive motor, and the mold opening tool is mounted on the tool holder.

[0011] In one embodiment of this utility model, the mold-opening tool is a rectangular blade, and both ends of the mold-opening tool are provided with cutting edges. A mounting hole is provided in the middle of the mold-opening tool, and a locking screw is provided in the mounting hole.

[0012] In one embodiment of this utility model, the lens blocking mechanism includes a blocking linear module, a horizontal mounting plate, a blocking block, and a blocking plate mounting frame. The horizontal mounting plate is connected to the slider of the blocking linear module. One end of the blocking plate mounting frame is fixedly mounted on the horizontal mounting plate, and the blocking block is mounted on the other end of the blocking plate mounting frame.

[0013] In one embodiment of this utility model, the vertical support plate and the horizontal support plate are arranged vertically, and a reinforcing plate is provided between the vertical support plate and the horizontal support plate.

[0014] In one embodiment of this utility model, a protective cover is installed on the outer wall of the mounting base.

[0015] In one embodiment of this utility model, the blocking block is positioned directly opposite the lens mold to be opened on the lens positioning fixture.

[0016] In one embodiment of this utility model, the end face of the blocking block opposite to the lens mold to be molded is provided with an arc-shaped groove, and one end of the lens mold to be molded is in contact with the inner wall of the arc-shaped groove.

[0017] In one embodiment of this utility model, the mold-opening cutter and the blocking block are located on opposite sides of the lens mold to be opened.

[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:

[0019] The automatic mold opening device for lenses described in this utility model first places the lens mold into the lens positioning fixture by a robotic arm. After the lens mold is clamped and positioned in the lens positioning fixture, the lens blocking mechanism moves to the edge of the lens to block the lens mold, thus limiting the opening of the lens. Through the coordinated operation of the dual-axis motion mechanism and the tool angle rotation mechanism, the height and angle of the mold opening tool are adaptively adjusted to open the lens. This device can automate the opening of lens molds in lens manufacturing and other processes, saving labor costs and improving production efficiency and yield. Attached Figure Description

[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the automatic lens opening device of this utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the automatic lens opening device of this utility model. Figure 2

[0023] Figure 3 This is a partial structural schematic diagram of the automatic mold-opening device for lenses according to this utility model;

[0024] Figure 4 This is a schematic diagram of the dual-axis motion mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the mold-opening tool of this utility model;

[0026] Figure 6This is a schematic diagram of the lens blocking mechanism of this utility model;

[0027] Figure 7 This is a schematic diagram of the lens positioning fixture of this utility model.

[0028] Explanation of reference numerals in the accompanying drawings: Dual-axis motion mechanism 101, tool angle rotation mechanism 102, mold opening tool 103, lens blocking mechanism 104, horizontal linear module 105, horizontal support plate 106, vertical support plate 107, vertical linear module 108, mounting base 109, motor mounting bracket 110, drive motor 111, tool holder 112, blade 113, mounting hole 114, blocking linear module 115, horizontal mounting plate 116, blocking block 117, blocking plate mounting bracket 118, reinforcing plate 119, protective cover 120, arc-shaped groove 121, lens positioning fixture 200, lens robot 300, lens mold 400. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0030] Reference Figure 1-3 As shown, the automatic lens mold opening device of this utility model includes several main parts: a dual-axis motion mechanism 101, a tool angle rotation mechanism 102, a mold opening tool 103, a lens positioning fixture 200, a lens robot 300, and a lens blocking mechanism 104; the tool angle rotation mechanism 102 is connected to the dual-axis motion mechanism 101; the mold opening tool 103 is disposed on the tool angle rotation mechanism 102, the dual-axis motion mechanism 101 is used to adjust the position between the mold opening tool 103 and the lens mold, and the tool angle rotation mechanism 102 is used to adjust the angle between the mold opening tool 103 and the lens mold; the lens positioning fixture 200 contains a lens mold 400 to be opened; the lens robot 300 is used to place the lens mold to be opened into the lens positioning fixture; the lens blocking mechanism 104 is disposed on the other side of the lens positioning fixture opposite to the mold opening tool 103, and the lens blocking mechanism 104 is used to limit the movement of the lens mold.

[0031] Reference Figure 4As shown, the dual-axis motion mechanism 101 includes a horizontal linear module 105, a horizontal support plate 106, a vertical support plate 107, and a vertical linear module 108. The horizontal support plate 106 is connected to the slider of the horizontal linear module 105. The vertical support plate 107 is fixedly mounted on the horizontal support plate 106, and the vertical linear module 108 is mounted on the vertical support plate 107. The tool angle rotation mechanism 102 is connected to the slider of the vertical linear module 108. The vertical support plate 107 and the horizontal support plate 106 are arranged vertically, and a reinforcing plate 119 is provided between the vertical support plate 107 and the horizontal support plate 106.

[0032] Reference Figure 4 As shown, the tool angle rotation mechanism 102 includes a mounting base 109, a motor mounting bracket 110, a drive motor 111, and a tool holder 112. The mounting base 109 is connected to the dual-axis motion mechanism 101. The motor mounting bracket 110 is fixedly mounted on the mounting base 109. The drive motor 111 is mounted on the motor mounting bracket 110. The tool holder 112 is connected to the drive motor 111. The mold-opening tool 103 is mounted on the tool holder 112. A protective cover 120 is installed on the outer wall of the mounting base 109.

[0033] Reference Figure 5 As shown, the mold-opening cutter 103 is a rectangular blade, and both ends of the mold-opening cutter 103 in the length direction are provided with cutting edges 113. The middle position of the mold-opening cutter 103 is provided with a mounting hole 114, and a locking screw is provided in the mounting hole 114.

[0034] Reference Figure 6 As shown, the lens blocking mechanism 104 includes a blocking linear module 115, a horizontal mounting plate 116, a blocking block 117, and a blocking plate mounting bracket 118. The horizontal mounting plate 116 is connected to the slider of the blocking linear module 115. One end of the blocking plate mounting bracket 118 is fixedly mounted on the horizontal mounting plate 116, and the blocking block 117 is mounted on the other end of the blocking plate mounting bracket 118. The blocking block 117 is positioned directly opposite the lens mold to be opened on the lens positioning fixture. The mold opening cutter 103 and the blocking block 117 are located on opposite sides of the lens mold to be opened. The end face of the blocking block 117 opposite to the lens mold to be opened has an arc-shaped groove 121, and one end of the lens mold to be opened contacts the inner wall of the arc-shaped groove 121.

[0035] The aforementioned lens mold 400 is a hamburger-shaped structure with three layers stacked together. From top to bottom, it consists of mold B, lens, and mold A. The area between mold B and lens is where the mold needs to be opened. The mold opening tool 103 needs to be inserted into the gap between mold B and lens to open the mold.

[0036] The working principle of the automatic lens mold opening device of this utility model is as follows:

[0037] After the lens positioning fixture 200 is placed into the lens mold 400 to be molded, the lens blocking mechanism 104 abuts against one side of the lens mold 400. The horizontal linear module 105 adjusts the horizontal distance between the mold opening cutter 103 and the lens mold 400, and the vertical linear module 108 adjusts the vertical position between the mold opening cutter 103 and the lens mold 400. Since the placement position of the lens mold 400 is slightly skewed, the mold opening angle of the mold opening cutter 103 is adjusted by the drive motor 111. After the position and angle are adjusted, the horizontal linear module 105 feeds the mold opening cutter 103, so that the front edge 113 of the mold opening cutter 103 driven by the horizontal linear module 105 first inserts into the gap between the B mold and the lens. As the horizontal linear module 105 drives the mold opening cutter 103 to feed, the mold opening cutter 103 gradually extends into the gap between the B mold and the lens, thereby performing mold opening.

[0038] Reference Figure 7 As shown, the lens positioning fixture 200 includes a right-angle connecting plate 219, a first side plate 220, two symmetrical second side plates 221, and a base plate 222. The upper end of the right-angle connecting plate 219 is connected to the robot arm 201, and the lower end of the right-angle connecting plate 219 is fixedly connected to the first side plate 220. The first side plate 220 and the two symmetrical second side plates 221 are respectively connected to three adjacent sides of the base plate 222. The lens mold is placed on the base plate 222, and the lens mold is located within the area enclosed by the first side plate 220 and the two symmetrical second side plates 221. The first side plate 220 and the two symmetrical second side plates 221 are both perpendicular to the base plate 222. The first side plate 220 is provided with a rectangular through hole 223. The base plate 222 has through holes 224 and 225. The end of the side plate 221 that connects to the base plate 222 has a through hole 226, and the through hole 225 and the through hole 226 are connected. The blocking linear module 115 drives the blocking block 117 to pass through the rectangular through hole 223 and abut against the lens mold within the range of the side plate 220 and the two symmetrical side plates 221.

[0039] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An automatic mold opening device for lenses, characterized in that, The utility model relates to a kind of lens mold opening device, including: Dual-axis movement mechanism; Tool angle rotating mechanism, which is connected with dual-axis movement mechanism; Die opening tool, which is arranged on tool angle rotating mechanism, the dual-axis movement mechanism is used to realize the adjustment of position between die opening tool and lens mold, and the tool angle rotating mechanism is used to realize the adjustment of angle between die opening tool and lens mold; Lens positioning jig, which is internally provided with lens mold to be opened; Lens manipulator, which is used to place lens mold to be opened in lens positioning jig; Lens blocking mechanism, which is arranged on the other side of lens positioning jig relative to die opening tool, and is used to limit lens mold.

2. The automatic mold opening device for lenses according to claim 1, characterized in that: The dual-axis movement mechanism includes horizontal linear module, horizontal support plate, vertical support plate and vertical linear module, the horizontal support plate and the slider of horizontal linear module are connected, the vertical support plate is fixedly arranged on the horizontal support plate, the vertical linear module is arranged on the vertical support plate, and the tool angle rotating mechanism is connected with the slider of vertical linear module.

3. The automatic mold opening apparatus for lenses according to claim 1, characterized in that: The tool angle rotating mechanism includes mounting seat, motor mounting bracket, driving motor and tool seat, the mounting seat is connected with dual-axis movement mechanism, the motor mounting bracket is fixedly arranged on the mounting seat, the driving motor is arranged on the motor mounting bracket, the tool seat is connected with the driving motor, and the die opening tool is arranged on the tool seat.

4. The automatic mold opening apparatus for lenses according to claim 1, characterized in that: The die opening tool is rectangular blade, both ends of the die opening tool in length direction are provided with cutting edge, the middle position of the die opening tool is provided with mounting hole, and the mounting hole is provided with locking screw.

5. The automatic mold opening apparatus for lenses according to claim 1, characterized in that: The lens blocking mechanism includes blocking linear module, horizontal mounting plate, blocking block and blocking plate mounting bracket, the horizontal mounting plate and the slider of blocking linear module are connected, one end of the blocking plate mounting bracket is fixedly arranged on the horizontal mounting plate, and the blocking block is arranged on the other end of the blocking plate mounting bracket.

6. The automatic mold opening apparatus for lenses according to claim 2, characterized in that: The vertical support plate and the horizontal support plate are arranged vertically, and the vertical support plate and the horizontal support plate are provided with reinforcing plate therebetween.

7. The automatic mold opening device for lenses according to claim 3, characterized in that: The outer wall of the mounting seat is provided with protective cover.

8. The automatic mold opening apparatus for lenses according to claim 5, characterized in that: The blocking block is arranged opposite to lens mold to be opened on lens positioning jig.

9. The automatic mold opening apparatus for lenses according to claim 8, characterized in that: The end face of the blocking block opposite to lens mold to be opened is provided with arc-shaped groove, and one end of the lens mold to be opened is in contact with the inner wall of the arc-shaped groove.

10. The automatic mold opening apparatus for lenses according to claim 5, characterized in that: The die opening tool and the blocking block are respectively located on opposite sides of lens mold to be opened.

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