A mold for manufacturing an ophthalmic lens

Abstract

This utility model discloses a mold for manufacturing eyeglass lenses, relating to the field of mold technology. It includes a base plate and a top plate, with the top plate positioned above the base plate. The four corners of the base plate and top plate are fixedly connected by vertical rods. An upper mold is positioned between the base plate and top plate. A hydraulic cylinder is fixedly mounted on the surface of the top plate, with the piston rod end of the hydraulic cylinder fixedly connected to the upper mold. A lower mold is fixedly mounted on the upper surface of the base plate. An opening is formed in the center of the base plate. A first groove is formed on the lower surface of the lower mold, with a mounting groove at the bottom of the first groove. A mold core is engaged inside the mounting groove. Rotating rods are rotatably mounted on both sides of the interior of the first groove, with a stop rod fixedly sleeved on the rod wall. One end of the stop rod abuts against the lower surface of the mold core. Cavities are formed inside both ends of the lower side of the lower mold. This utility model allows for the replacement of different mold cores according to production needs and is convenient to operate, saving time and effort.

Description

Technical Field

[0001] This utility model relates to the field of mold technology, specifically to a mold for manufacturing eyeglass lenses. Background Technology

[0002] Lens molds mainly play a shaping role in the lens processing. Currently, most lens molds consist of an upper mold and a lower mold. The upper mold is used in conjunction with the lower mold to shape the lens.

[0003] Traditionally, the molding holes on the lower mold of eyeglass lens manufacturing molds are often integrated with the lower mold structure. When different lenses need to be shaped, the entire mold needs to be replaced. When replacing, the mold needs to be disassembled and reassembled. The whole process is cumbersome, time-consuming and labor-intensive. Utility Model Content

[0004] In view of the problems existing in the molds for manufacturing eyeglass lenses, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a mold for manufacturing eyeglass lenses, which solves the problem that in the prior art, the forming holes on the lower mold of the eyeglass lens manufacturing mold are mostly integrated with the lower mold structure. When different lenses need to be shaped, the entire mold needs to be replaced. When replacing, the mold needs to be disassembled and assembled. The whole process is cumbersome, time-consuming and labor-intensive.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A mold for manufacturing eyeglass lenses includes a base plate and a top plate. The top plate is disposed on the upper side of the base plate. The four corners of the base plate and the top plate are fixedly connected by vertical rods. An upper mold is disposed between the base plate and the top plate. A hydraulic cylinder is fixedly disposed on the surface of the top plate. The end of the piston rod of the hydraulic cylinder is fixedly connected to the upper mold.

[0008] The lower mold is fixedly installed on the upper surface of the base plate, and an opening is provided in the middle of the base plate. A first groove is provided on the lower surface of the lower mold, and an installation groove is provided at the bottom of the first groove. A mold core is snapped into the inside of the installation groove.

[0009] Rotating rods are rotatably provided on both sides of the inner side of the first groove. A stop rod is fixedly sleeved on the rod wall of the rotating rod, and one end of the stop rod abuts against the lower surface of the mold core.

[0010] The lower mold has cavities at both ends on its lower side, and a limiting mechanism for fixing the stop rod is provided inside the cavity.

[0011] Preferably, the limiting mechanism includes a rod and a limiting frame. A stop block is slidably disposed inside the cavity. The middle part of the stop block is fixedly sleeved on the rod. Both ends of the rod extend to the outside of the cavity. One end of the stop block has an insertion hole, and one end of the rod is inserted into the corresponding insertion hole. The limiting frame is movably sleeved on the outside of the lower mold. A second groove is provided on both sides of the lower mold. One end of the rod extends into the interior of the second groove and is fixedly connected to a push block. The push block abuts against the inner wall of the limiting frame.

[0012] Preferably, a torsion spring is movably sleeved on the wall of the rotating rod, and the two ends of the torsion spring are respectively fixedly connected to the corresponding rotating rod and the inner wall of the first groove.

[0013] Preferably, a spring is fixedly provided on the side of the stop block away from the push block, and the other end of the spring is fixedly connected to the inner wall of the cavity.

[0014] Preferably, the upper surface of the push block near the limiting frame has an inclined surface.

[0015] Preferably, both the stop block and the cavity have square longitudinal sections.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] 1. In this utility model, by pulling the limiting frame upward, the limiting frame is moved away from one side of the second groove, thereby releasing the limiting of the push block. The spring pushes the stop block to reset, so that the insertion rod leaves the insertion hole, thereby releasing the limiting of the stop rod. The stop rod can then be rotated to vertical around the rotating rod as the axis, and then the mold core can be taken out from the mounting slot, which is convenient for time-saving and labor-saving replacement of the mold core.

[0018] 2. In this utility model, under natural conditions, the elastic force of the torsion spring will cause the rotating rod to drive the stop rod to rotate to the horizontal. Therefore, after the mold core is installed in the mounting groove, it is only necessary to pull down the limiting frame and push the push block into the second groove so that the insert rod is inserted into the corresponding insertion hole, which makes it convenient to install and fix the mold core. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a mold for manufacturing eyeglass lenses according to the present invention;

[0021] Figure 2 for Figure 1Internal structure diagram;

[0022] Figure 3 for Figure 2 A magnified schematic diagram of the structure of part A in the middle section.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base plate; 2. Top plate; 3. Upper mold; 4. Vertical rod; 5. Lower mold; 6. Hydraulic cylinder; 7. Mold core; 8. Limit frame; 9. Rotating rod; 10. Stop rod; 11. Insert rod; 12. Stop block; 13. Spring; 14. Push block; 15. Torsion spring. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model discloses a mold for manufacturing eyeglass lenses.

[0027] Reference Figure 1-3 A mold for manufacturing eyeglass lenses includes a base plate 1 and a top plate 2. The top plate 2 is disposed on the upper side of the base plate 1. The four corners of the base plate 1 and the top plate 2 are fixedly connected by vertical rods 4. An upper mold 3 is disposed between the base plate 1 and the top plate 2. A hydraulic cylinder 6 is fixedly disposed on the surface of the top plate 2. The piston rod end of the hydraulic cylinder 6 is fixedly connected to the upper mold 3.

[0028] A lower mold 5 is fixedly installed on the upper surface of the base plate 1. An opening is provided in the middle of the base plate 1. A first groove is provided on the lower surface of the lower mold 5. An installation groove is provided at the bottom of the first groove. A mold core 7 is snapped into the inside of the installation groove.

[0029] Rotating rods 9 are rotatably installed on both sides of the inner side of the first groove. A stop rod 10 is fixedly sleeved on the rod wall of the rotating rod 9, and one end of the stop rod 10 abuts against the lower surface of the mold core 7.

[0030] Reference Figure 1-3The lower mold 5 has cavities at both ends of its lower side. Inside each cavity is a limiting mechanism for fixing a stop rod 10. This limiting mechanism includes a rod 11 and a limiting frame 8. A stop block 12 is slidably positioned inside the cavity. Both the stop block 12 and the cavity have square cross-sections, preventing the stop block 12 from rotating and allowing for stable sliding. The rod 11 is fixedly fitted with the middle of the stop block 12. Both ends of the rod 11 extend to the outside of the cavity. One end of the stop rod 10 has a insertion hole, and one end of the rod 11 is inserted into the corresponding insertion hole. The limiting frame 8 is movable. The lower mold 5 is fitted onto the outside of the mold 5. The lower mold 5 has a second groove on both sides. One end of the insert rod 11 extends into the second groove and is fixedly connected to a push block 14. The push block 14 abuts against the inner wall of the limiting frame 8. The upper surface of the push block 14 near the limiting frame 8 has an inclined surface, so that the limiting frame 8 can smoothly push the push block 14 into the second groove during the downward movement. A spring 13 is fixedly installed on the side of the stop block 12 away from the push block 14. The other end of the spring 13 is fixedly connected to the inner wall of the cavity, which facilitates the reset of the insert rod 11.

[0031] Reference Figure 1-3 A torsion spring 15 is movably sleeved on the rod wall of the rotating rod 9. The two ends of the torsion spring 15 are fixedly connected to the corresponding rotating rod 9 and the inner wall of the first groove, respectively. In the natural state, the elastic force of the torsion spring 15 will cause the rotating rod 9 to drive the stop rod 10 to rotate to the horizontal.

[0032] In this invention, when replacing the mold core 7, the limiting frame 8 is pulled upwards, causing it to move away from one side of the second groove, thus releasing the limitation on the push block 14. The spring 13 then pushes the stop block 12 back to its original position, allowing the insertion rod 11 to leave the insertion hole, thus releasing the limitation on the stop rod 10. The stop rod 10 can then be rotated vertically around the rotating rod 9, allowing the mold core 7 to be removed from the mounting slot. This facilitates a time-saving and labor-saving replacement of the mold core 7. After the new mold core 7 is inserted into the mounting slot, the two stop rods 10, under the action of the torsion spring 15, rotate to a horizontal position, thus abutting against the lower surface of the mold core 7. At this point, simply pull down the limiting frame 8 and push the push block 14 into the second groove, allowing the insertion rod 11 to be inserted into the corresponding insertion hole, thus facilitating the installation and fixing of the mold core 7.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mold for manufacturing spectacle lenses, comprising a base plate (1) and a top plate (2), characterized in that, The top plate (2) is located on the upper side of the bottom plate (1). The four corners of the bottom plate (1) and the top plate (2) are fixedly connected by vertical rods (4). An upper mold (3) is provided between the bottom plate (1) and the top plate (2). A hydraulic cylinder (6) is fixedly provided on the surface of the top plate (2). The piston rod end of the hydraulic cylinder (6) is fixedly connected to the upper mold (3). The lower mold (5) is fixedly installed on the upper surface of the base plate (1). An opening is provided in the middle of the base plate (1). A first groove is provided on the lower surface of the lower mold (5). An installation groove is provided at the bottom of the first groove. A mold core (7) is snapped into the inside of the installation groove. Rotating rods (9) are rotatably provided on both sides of the inner side of the first groove. A stop rod (10) is fixedly sleeved on the rod wall of the rotating rod (9). One end of the stop rod (10) abuts against the lower surface of the mold core (7). The lower mold (5) has cavities at both ends of its lower side, and a limiting mechanism for fixing the stop bar (10) is provided inside the cavity.

2. The mold for manufacturing spectacle lenses according to claim 1, characterized in that, The limiting mechanism includes a rod (11) and a limiting frame (8). A stop (12) is slidably arranged inside the cavity. The middle part of the stop (12) is fixedly sleeved on the rod (11). Both ends of the rod (11) extend to the outside of the cavity. One end of the stop (10) is provided with a hole. One end of the rod (11) is inserted into the corresponding hole. The limiting frame (8) is movably sleeved on the outside of the lower mold (5). The lower mold (5) is provided with a second groove on both sides. One end of the rod (11) extends into the inside of the second groove and is fixedly connected to a push block (14). The push block (14) abuts against the inner wall of the limiting frame (8).

3. The mold for manufacturing spectacle lenses according to claim 1, characterized in that, The rod wall of the rotating rod (9) is movably fitted with a torsion spring (15), and the two ends of the torsion spring (15) are fixedly connected to the corresponding rotating rod (9) and the inner wall of the first groove, respectively.

4. The mold for manufacturing spectacle lenses according to claim 2, characterized in that, A spring (13) is fixedly installed on the side of the stop block (12) away from the push block (14), and the other end of the spring (13) is fixedly connected to the inner wall of the cavity.

5. The mold for manufacturing spectacle lenses according to claim 2, characterized in that, The push block (14) has an inclined surface on the upper surface of the side near the limiting frame (8).

6. The mold for manufacturing spectacle lenses according to claim 2, characterized in that, Both the stop block (12) and the cavity have square longitudinal sections.

Images