Plastic lens injection mold with stable bushing positioning

Abstract

The plastic lens injection mold comprises a male mold plate, the lining and a stabilizing block, the lining is embedded in the male mold plate, and a supporting column and a positioning column are arranged on the upper surface of the male mold plate and located on the two sides of the lining respectively; the stabilizing block is slidably arranged on the upper surface of the male mold plate, a positioning clamping groove corresponding to the lining is formed in the side, close to the lining, of the stabilizing block, and a plurality of sets of anti-skid rubber beans are arranged on the inner wall of the positioning clamping groove. A stabilizing assembly used for pushing the stabilizing block to position and abut against the lining is arranged on the upper surface of the male mold plate. The bushing is moved into the male mold plate, the supporting column and the positioning column make contact with the two adjacent sides of the bushing correspondingly, then the rotating plate is rotated to drive the stabilizing block to clamp the other corner, away from the supporting column and the positioning column, of the bushing, and therefore the bushing is stably positioned, and then the rotating rod is rotated to drive the lower pressing plate to move to the position above the bushing. Therefore, one end of the bushing is prevented from tilting, and the positioning stability of the bushing is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic lens injection molding, in particular to a plastic lens injection molding mold with a stable bushing positioning. Background Art

[0002] Plastic lenses are now widely used in various industries, including testing instruments, cameras, laser scanners, CD readers, optical communications, and mobile phone cameras. Plastic lenses are usually manufactured using injection molding. To achieve higher dimensional accuracy, some injection molds use bushings (also called mold sleeves) to shape the lenses.

[0003] Most existing injection molds use pressure strips to press and position the bushing. However, the pressure strip can only fix one end of the bushing, while the other end of the bushing needs to be connected to the injection tube. There is not enough space to set the pressure strip, so the bushing may be displaced or warped. Therefore, we need to propose a plastic lens injection mold with a stable bushing positioning. Utility Model Content

[0004] The purpose of the present utility model is to provide a plastic lens injection mold with a stable bushing positioning, by moving the bushing into the male mold plate, and the support column and the positioning column are respectively in contact with the two adjacent sides of the bushing, and then the stabilizing block is driven by rotating the rotating plate to clamp the bushing away from the other corner of the support column and the positioning column, so as to stably position the bushing, and then the rotating rod is rotated to drive the lower pressure plate to move above the bushing, thereby preventing one end of the bushing from tilting up, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a plastic lens injection mold with a bushing that is securely positioned, comprising a male mold plate, a bushing, and a stabilizing block, wherein the bushing is embedded in the male mold plate, and a support column and a positioning column are respectively provided on the upper surface of the male mold plate and on both sides of the bushing; the stabilizing block is slidably provided on the upper surface of the male mold plate, and a positioning slot corresponding to the bushing is provided on the side of the stabilizing block close to the bushing, and a plurality of groups of anti-slip rubber beans are provided on the inner wall of the positioning slot;

[0006] The upper surface of the male template is provided with a stabilizing component for pushing the stabilizing block to position and tighten the bushing;

[0007] The stabilizing assembly includes a rotating plate and a limiting module. The rotating plate rotates eccentrically on the upper surface of the male template, and the rotating plate contacts a side of the stabilizing block away from the bushing.

[0008] Preferably, the limiting module includes a positioning bolt and a limiting bolt, the positioning bolt thread is arranged on the upper surface of the male template, and the rotating plate rotates eccentrically with the positioning bolt as the center of the circle, the limiting bolt thread is arranged on the upper surface of the male template, the stabilizing block is slidably sleeved on the outer arc surface of the limiting bolt, and a movable groove corresponding to the limiting bolt is opened inside the stabilizing block.

[0009] Preferably, a connecting column is fixedly installed on the upper surface of the stabilizing block, and a sleeve column is fixedly provided on the top of the positioning bolt and the connecting column. The outer arc surfaces of the two groups of sleeve columns are commonly sleeved with a tension spring.

[0010] Preferably, a rotating rod is rotatably provided on the upper surface of the support column, a lower pressing plate is fixedly provided on the lower surface of the rotating rod, and the lower pressing plate is in contact with the upper surface of the bushing.

[0011] Preferably, a spring plunger is fixedly provided at the bottom end of the rotating rod away from the supporting column, a placement column is fixedly provided on the upper surface of the male template, and positioning holes corresponding to the spring plunger are provided at the top of the placement column and the positioning column.

[0012] Preferably, the supporting column and the positioning column are both in contact with the bushing, the placing column is located on a side of the supporting column and the positioning column away from the stabilizing block, and the stabilizing block is located on a side of the bushing away from the placing column.

[0013] Preferably, a side of the rotating plate close to the stabilizing block is configured to be arc-shaped, and an operating rod is fixedly provided on an end of the rotating plate away from the stabilizing block.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model moves the bushing into the male template, and the support column and the positioning column respectively contact the adjacent two sides of the bushing, and then rotates the rotating plate to drive the stabilizing block to clamp the bushing away from the other corner of the support column and the positioning column, thereby stably positioning the bushing, and then rotates the rotating rod to drive the lower pressure plate to move above the bushing, thereby preventing one end of the bushing from tilting up, thereby improving the positioning stability of the bushing.

[0016] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be achieved and obtained by the structures indicated in the description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall positioning structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the bushing of the utility model;

[0019] Figure 3 This is an exploded view of the stabilizing component of the utility model;

[0020] Figure 4 This is an exploded view of the rotating rod of the utility model.

[0021] In the figure: 1. Male template; 2. Bushing; 3. Placement column; 4. Positioning hole; 5. Spring plunger; 6. Stabilizing block; 7. Rotating plate; 8. Operating lever; 9. Support column; 10. Positioning column; 11. Positioning bolt; 12. Socket column; 13. Tension spring; 14. Connecting column; 15. Limit bolt; 16. Positioning slot; 17. Anti-slip rubber bean; 18. Moving slot; 19. Rotating rod; 20. Lower pressure plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides: a plastic lens injection mold with a stable bushing positioning, such as Figure 1-4 As shown, it includes a male template 1, a bushing 2 and a stabilizing block 6, the bushing 2 is embedded in the male template 1, and a support column 9 and a positioning column 10 are respectively provided on the upper surface of the male template 1 and on both sides of the bushing 2; the stabilizing block 6 is slidably arranged on the upper surface of the male template 1, and a positioning groove 16 corresponding to the bushing 2 is opened on the side of the stabilizing block 6 close to the bushing 2, and a plurality of groups of non-slip rubber beans 17 are provided on the inner wall of the positioning groove 16. The positioning groove 16 is provided to clamp a corner of the bushing 2, and a plurality of groups of non-slip rubber beans 17 are provided to increase the stability of the stabilizing block 6 and the bushing 2 to prevent the bushing 2 from displacing in different directions. In addition, the male template 1 and the bushing 2 in the present utility model are existing technologies in the injection molding of plastic lenses, so the specific use process is not described in detail here;

[0024] Preferably, a stabilizing component is provided on the upper surface of the male template 1 for pushing the stabilizing block 6 to position and tighten the bushing 2; the stabilizing component includes a rotating plate 7 and a limiting module, the rotating plate 7 rotates eccentrically on the upper surface of the male template 1, and the rotating plate 7 contacts the side of the stabilizing block 6 away from the bushing 2; the limiting module includes a positioning bolt 11 and a limiting bolt 15, the positioning bolt 11 is threadedly arranged on the upper surface of the male template 1, and the rotating plate 7 rotates eccentrically with the positioning bolt 11 as the center of the circle, the limiting bolt 15 is threadedly arranged on the upper surface of the male template 1, the stabilizing block 6 is slidably sleeved on the outer arc surface of the limiting bolt 15, and a moving groove 18 corresponding to the limiting bolt 15 is opened inside the stabilizing block 6, the rotating plate 7 is positioned by the positioning bolt 11, so that the rotating plate 7 rotates eccentrically on the upper surface of the male template 1, so that the rotating plate 7 will move away from or approach the stabilizing block 6 when it rotates, and the stabilizing block 6 limits the limiting bolt 15 by setting the moving groove 18, so that the stabilizing block 6 can approach or move away from the bushing 2 without displacing too much.

[0025] It is worth mentioning that a connecting column 14 is fixedly installed on the upper surface of the stabilizing block 6, and a socket column 12 is fixedly provided on the top of the positioning bolt 11 and the connecting column 14, and a tension spring 13 is commonly socketed on the outer arc surface of the two groups of socket columns 12; the side of the rotating plate 7 close to the stabilizing block 6 is set to a circular arc shape, and the end of the rotating plate 7 away from the stabilizing block 6 is fixed with an operating rod 8, and the tension spring 13 is connected through the positioning bolt 11 and the socket column 12 on the top of the connecting column 14. When the rotating plate 7 rotates and presses against the stabilizing block 6, the tension spring 13 is in a stretched state. When the staff releases the operating rod 8 and drives the rotating plate 7 to rotate away from the stabilizing block 6, the stabilizing block 6 will approach the rotating plate 7 under the action of the tension spring 13, thereby driving the stabilizing block 6 away from the bushing 2 to facilitate the taking and placing operation of the bushing 2.

[0026] Furthermore, a rotating rod 19 is rotatably provided on the upper surface of the support column 9, and a lower pressure plate 20 is fixedly provided on the lower surface of the rotating rod 19, and the lower pressure plate 20 is in contact with the upper surface of the bushing 2; a spring plunger 5 is fixedly provided on the bottom end of the rotating rod 19 away from the support column 9, and a placement column 3 is fixedly provided on the upper surface of the male template 1, and the placement column 3 and the positioning column 10 are both provided with positioning holes 4 corresponding to the spring plunger 5. By rotating the rotating rod 19, the spring plunger 5 is driven to be stuck in the positioning hole 4 above the positioning column 10, thereby driving the lower pressure plate 20 to contact and position the upper surface of the bushing 2, and when the positioning hole 4 needs to be taken and placed, the rotating rod 19 is driven to rotate above the placement column 3, and the spring plunger 5 is stuck in the positioning hole 4 above the placement column 3, thereby ensuring that the lower pressure plate 20 is away from the bushing 2 for convenient taking and placing of the bushing 2.

[0027] Furthermore, the support column 9 and the positioning column 10 are both in contact with the bushing 2, the placement column 3 is located on the side of the support column 9 and the positioning column 10 away from the stabilizing block 6, and the stabilizing block 6 is located on the side of the bushing 2 away from the placement column 3. One corner of the bushing 2 is limited by the support column 9 and the positioning column 10, and the other corner of the bushing 2 is limited by the stabilizing block 6, thereby improving the positioning stability of the bushing 2.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plastic lens injection mold with a stable bushing positioning, characterized in that: The invention comprises: a male template (1), a bushing (2) and a stabilizing block (6), wherein the bushing (2) is embedded in the male template (1), and a support column (9) and a positioning column (10) are respectively provided on the upper surface of the male template (1) and on both sides of the bushing (2); the stabilizing block (6) is slidably provided on the upper surface of the male template (1), and a positioning slot (16) corresponding to the bushing (2) is provided on the side of the stabilizing block (6) close to the bushing (2), and a plurality of groups of anti-slip rubber beans (17) are provided on the inner wall of the positioning slot (16); The upper surface of the male template (1) is provided with a stabilizing component for pushing the stabilizing block (6) to position and tighten the bushing (2); The stabilizing assembly comprises a rotating plate (7) and a limiting module. The rotating plate (7) rotates eccentrically on the upper surface of the male template (1), and the rotating plate (7) contacts the side of the stabilizing block (6) away from the bushing (2).

2. The plastic lens injection mold with a stable bushing positioning according to claim 1, characterized in that: The limiting module comprises a positioning bolt (11) and a limiting bolt (15), wherein the positioning bolt (11) is threadedly arranged on the upper surface of the male template (1), and the rotating plate (7) rotates eccentrically with the positioning bolt (11) as the center of the circle, and the limiting bolt (15) is threadedly arranged on the upper surface of the male template (1), and the stabilizing block (6) is slidably sleeved on the outer arc surface of the limiting bolt (15), and a moving groove (18) corresponding to the limiting bolt (15) is opened inside the stabilizing block (6).

3. The plastic lens injection mold with a stable bushing positioning according to claim 2, characterized in that: A connecting column (14) is fixedly installed on the upper surface of the stabilizing block (6), and a sleeve column (12) is fixedly provided on the top of the positioning bolt (11) and the connecting column (14), and a tension spring (13) is sleeved on the outer arc surface of the two groups of sleeve columns (12).

4. The plastic lens injection mold with a stable bushing positioning according to claim 3, characterized in that: A rotating rod (19) is rotatably provided on the upper surface of the support column (9), a lower pressing plate (20) is fixedly provided on the lower surface of the rotating rod (19), and the lower pressing plate (20) is in contact with the upper surface of the bushing (2).

5. The plastic lens injection mold with a stable bushing positioning according to claim 4, characterized in that: A spring plunger (5) is fixedly provided at the bottom end of the rotating rod (19) away from the supporting column (9), a placement column (3) is fixedly provided on the upper surface of the male template (1), and a positioning hole (4) corresponding to the spring plunger (5) is provided at the top end of the placement column (3) and the positioning column (10).

6. The plastic lens injection mold with a stable bushing position according to claim 5, characterized in that: The support column (9) and the positioning column (10) are both in contact with the bushing (2), the placement column (3) is located on the side of the support column (9) and the positioning column (10) away from the stabilizing block (6), and the stabilizing block (6) is located on the side of the bushing (2) away from the placement column (3).

7. The plastic lens injection mold with a stable bushing positioning according to claim 1, characterized in that: The side of the rotating plate (7) close to the stabilizing block (6) is arranged in an arc shape, and an operating rod (8) is fixedly arranged on the end of the rotating plate (7) away from the stabilizing block (6).

Images