CN211734464U

CN211734464U - Film coating jig

Info

Publication number: CN211734464U
Application number: CN201922442270.9U
Authority: CN
Inventors: 蒯泽文; 朱亚蒙
Original assignee: Zhejiang Sunny Optics Co Ltd
Current assignee: Zhejiang Sunny Optics Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-10-23
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a film coating jig, which comprises a bottom plate (1) and a cover plate (2) detachably connected with the bottom plate (1); bosses (11) which are regularly arranged and protrude from the surface of the bottom plate (1) are arranged on one surface of the bottom plate (1); one surface of the cover plate (2) is provided with accommodating grooves (21) which are in one-to-one correspondence to the shapes and the positions of the bosses (11) on the base plate (1), and the other surface is provided with avoidance grooves (22) which are communicated with the accommodating grooves (21) and are coaxial; holding tank (21) with dodge the size of groove (22) and gradually reduce in opposite directions, just holding tank (21) is close to dodge the one end size of groove (22) and be greater than dodge groove (22) and be close to the one end size of holding tank (21). The utility model discloses a coating film tool centre gripping optics spacer ring to the coating film equipment is its coating film, and can avoid the spacer to take place to warp when the coating film.

Description

Film coating jig

Technical Field

The utility model relates to a coating film field especially relates to a coating film tool for centre gripping optics spacer ring.

Background

Lenses are important components of mobile phones, digital cameras, and the like. Since the lens determines the quality of the imaging performance, the performance of the lens becomes an important consideration in designing devices such as cameras, and in recent years, the demand for the lens for portable electronic devices such as mobile phones has been increasing. With the rapid development of the optical industry, more and more products need to be coated to change the optical characteristics. The PVD coating equipment product needs to be loaded by using a jig and placed on a fan-shaped plate of a coating machine for coating. The optical lens generally includes optical elements such as a plastic lens barrel, an optical lens set, a light shielding plate and a spacer ring. The optical spacer ring is generally used to provide the optical spacing between any two lenses in the imaging lens assembly. The conventional optical spacer ring is usually manufactured by an injection molding method, and has a smooth and bright surface with high reflectivity, so that stray light cannot be effectively suppressed. One solution is to improve the optical characteristics of such optical elements by coating, so it is necessary to design a coating jig for carrying such optical elements.

Patent CN106219053A discloses a lens tray, which is used for holding a lens to be coated by two plate-like structures, and after holding the lens, both sides of the lens are through holes. If the tray device is applied to clamping the optical spacing ring, the original part for clamping the lens is changed into a non-optical effective area for clamping the optical spacing ring, and two sides of the optical effective area are not abutted. The optical spacer ring is usually made of a soft material and is relatively thin, so that the stress generated by the adhesion of the film layer during the film coating process easily causes the optical effective area to be bent and deformed, and the tray in the patent cannot solve the problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can support the coating film tool who supports for it provides after the centre gripping optics spacer ring.

In order to achieve the purpose, the utility model provides a coating jig, which comprises a bottom plate and a cover plate detachably connected with the bottom plate; the bottom plate is provided with bosses which are regularly arranged and protrude from the surface of the bottom plate on one surface; one surface of the cover plate is provided with accommodating grooves which are in one-to-one correspondence with the shapes and the positions of the bosses on the bottom plate, and the other surface of the cover plate is provided with an avoiding groove which is communicated with the accommodating grooves and is coaxial with the accommodating grooves; the holding tank with dodge the size in groove and gradually reduce in opposite directions, just the holding tank is close to dodge the one end size in groove and be greater than dodge the groove and be close to the one end size of holding tank.

According to one aspect of the present invention, the boss is a cylindrical body, an included angle a between the side surface of the cylindrical body and the bottom plate is 90 ° to 120 °, and the top surface of the cylindrical body is parallel to the bottom plate.

According to an aspect of the present invention, the bosses are arranged at intervals on the bottom plate and staggered in position.

According to an aspect of the utility model, set up the surface of boss still is equipped with the locating hole.

According to one aspect of the present invention, the accommodating groove and the avoiding groove are frustoconical grooves with opposite upper bottoms;

the diameter of the upper bottom of the avoiding groove is smaller than that of the upper bottom of the accommodating groove.

According to one aspect of the present invention, after the bottom plate and the cover plate are assembled, the side wall of the accommodating groove is parallel to the side surface of the boss;

the diameter of the upper bottom of the accommodating groove is larger than or equal to that of the upper bottom of the boss, and the diameter of the upper bottom of the avoiding groove is smaller than that of the upper bottom of the boss.

According to the utility model discloses an aspect, the lateral wall of dodging the groove divide into two sections along the central axis direction, wherein keeps away from one section lateral wall of holding tank is greater than another section with the contained angle of central axis.

According to an aspect of the present invention, the included angle θ between the section of the sidewall of the avoiding groove close to the accommodating groove and the plane of the upper bottom of the accommodating groove is 90 ° to 120 °.

According to an aspect of the utility model, the connected mode of apron and bottom plate is articulated, buckle connection or screw connection.

According to the utility model discloses an aspect, set up on the apron the surface of holding tank still be equipped with can with locating hole complex locating pin on the bottom plate.

According to the utility model discloses a scheme, the bottom plate openly is equipped with and is the cellular boss of arranging the shape for the truncated cone shape, and the apron back is equipped with the holding tank that is used for holding the optics spacer ring, holding tank and boss shape and position one-to-one. After the cover plate and the bottom plate are combined, the lug boss is positioned in the accommodating groove and abuts against the optical spacing ring, so that when a film layer material is plated on the optical effective part of the optical spacing ring during film plating, the part cannot deform. And the side of the boss and the bottom plate form an included angle a of 90-120 degrees, and the side wall of the accommodating groove is parallel to the side of the boss, so that the boss can freely enter and exit the accommodating groove, and the side wall of the accommodating groove can form good support against the optical spacer ring, so that the spacer ring cannot move in the groove.

According to the utility model discloses a scheme, the apron openly is provided with dodges the groove coaxial with the holding tank, dodges the groove and is the truncated cone shape groove equally, goes up the end towards the apron back. Therefore, the side wall of the groove can be prevented from shielding the spacing ring during film coating.

According to the utility model discloses a scheme will dodge the lateral wall in groove and divide into two sections along the central axis direction, and wherein the lateral wall in hypomere groove is greater than the upper segment with the contained angle of central axis. The lower end opening of the avoiding groove is larger than the upper end, so that the shielding of the coating process can be further avoided. And the included angle theta between the side wall of the upper section of the groove and the plane of the upper bottom of the accommodating groove is 90-120 degrees. Therefore, the side wall of the avoiding groove forms a truncated cone shape with the upper bottom facing the accommodating groove, so that shielding is avoided, and the part of the cover plate, which is propped against by the boss, has enough strength.

Drawings

Fig. 1 is a front view schematically showing a base plate according to an embodiment of the present invention;

fig. 2 is a back view schematically illustrating a base plate according to an embodiment of the present invention;

fig. 3 is a front view schematically showing a cover plate in a coating jig according to an embodiment of the present invention;

fig. 4 is a back view schematically showing a cover plate in a coating jig according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view schematically illustrating the engagement of a boss and a receiving groove according to an embodiment of the present invention;

fig. 6 is a perspective view schematically showing a coating jig according to an embodiment of the present invention.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

In describing embodiments of the present invention, the terms "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and other terms are used in an orientation or positional relationship shown in the associated drawings for convenience in describing the invention and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the invention.

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are not repeated herein, but the present invention is not limited to the following embodiments.

Fig. 1 and 2 show a front view and a back view of a base plate according to an embodiment of the present invention, respectively. Referring to fig. 1 and 2, the front surface of the base plate 1 is provided with bosses 11 protruding from the surface, and the bosses 11 are arranged on the base plate 1 at intervals along the length direction of the base plate 1 to form a row, and the row is arranged at intervals along the width direction of the base plate 1. The bosses 11 in each row are staggered with respect to the bosses 11 in the other row to form a honeycomb-like arrangement as shown in fig. 1, which maximizes the use of the limited space on the base plate 1. In the present embodiment, the boss 11 is shaped like a cylinder whose side surface makes an angle a (see fig. 5) of 90 ° to 120 ° with the surface of the base plate 1, and whose top surface is parallel to the base plate 1. The boss 11 is thus shaped like a truncated cone. Fig. 3 and 4 show a front view and a back view of a cover plate in a plating jig according to an embodiment of the present invention, respectively. In combination with fig. 3 and 4, the back surface of the cover plate 2 is provided with an accommodating groove 21, the front surface of the cover plate is provided with an avoiding groove 22, the avoiding groove 22 is communicated and coaxial with the accommodating groove 21, and the accommodating groove 21 is used for accommodating an optical spacer ring to be coated. The utility model discloses in, holding tank 21 also is cellular arranges on apron 2, can be corresponding to the position of boss 11 on bottom plate 1 like this.

Fig. 5 is a sectional view schematically showing a fitting portion of a boss and a receiving groove according to an embodiment of the present invention. The optical spacer ring 4 in fig. 5 is a conventional circular ring shape and is located in the accommodating groove 21. The shape of the accommodating groove 21 is a hollow truncated cone groove with the upper bottom facing the front surface of the cover plate 2, and the side wall of the accommodating groove 21 is parallel to the side surface of the boss 11 after the base plate 1 and the cover plate 2 are assembled, so that the accommodating groove can correspond to the shape of the boss 11 and can also be adapted to the annular optical spacing ring 4. The avoiding groove 22 is also a hollow truncated cone-shaped groove, and the size gradually decreases toward the accommodating groove 21, so that the accommodating groove 21 and the avoiding groove 22 form two hollow truncated cones opposite to each other. However, in order to enable the optical spacer ring 4 to be placed in the receiving groove 21, the size of the lower end of the receiving groove 21 is larger than that of the upper end of the avoiding groove 22, i.e. the diameter of the upper bottom of the receiving groove 21 is larger than that of the upper bottom of the avoiding groove 22. And the difference in the diameters of the upper bottoms of the two grooves is the ring width of the non-optically active area of the optical spacer ring 4. The diameter of the upper bottom of the avoiding groove 22 is smaller than that of the upper bottom of the boss 11, the diameter of the upper bottom of the accommodating groove 21 is larger than or equal to that of the upper bottom of the boss 11, and preferably, the boss 11 and the accommodating groove 21 form clearance fit, so that the clamping area of the optical spacer ring 4 can be ensured to be the largest, and over-positioning cannot occur. As can be seen from fig. 5, the optical spacer ring 4 is placed in such a way that the film material is attached to the underside of the optical spacer ring 4 from below through the escape grooves 22 during coating. The coating area is an optically effective area of the spacer ring, i.e., an area a in fig. 5 (the area a is annular, and only the left side is marked in fig. 5). With the abutment of the boss 11, the region A in the middle of the optical spacing ring 4 is not deformed during film coating. Since the side wall of the accommodating groove 21 is parallel to the side surface of the boss 11, the included angle between the side wall of the accommodating groove 11 and the plane where the upper bottom thereof is located is also equal to the included angle a. Therefore, the included angle a is larger than 90 degrees, so that the boss 11 can freely enter and exit the accommodating groove 21; and the included angle a is smaller than 120 degrees, so that the side wall of the accommodating groove 21 can form good abutting against the optical spacing ring 4, and the spacing ring cannot move in the groove.

The avoiding groove 22 in the utility model can prevent the groove wall from shielding the spacing ring during film coating according to the shape, so that the whole optical effective area A can be considered during the film coating process. The sidewall of the avoiding groove 22 may be directly provided as a complete segment, or as shown in fig. 5, the sidewall of the avoiding groove 22 is divided into an upper segment and a lower segment along the central axis (i.e. the axis of the truncated cone), wherein the included angle between the sidewall of the lower segment and the central axis is larger than that of the upper segment. The opening at the lower end of the avoiding groove 22 is larger than the opening at the upper end, so that shielding in the film coating process can be further avoided. In the embodiment shown in fig. 5, the angle θ between the sidewall of the upper section of the avoiding groove 22 and the plane of the upper bottom of the accommodating groove 21 is 90 ° to 120 °. The included angle θ is larger than 90 °, so that the sidewall of the avoiding groove 22 forms a hollow truncated cone shape with the upper bottom facing upwards, and the shielding can be avoided as described above; and the angle theta smaller than 120 deg. ensures that the part of the cover plate 2 against which the boss 11 abuts has sufficient strength.

Fig. 6 is a perspective view schematically showing a coating jig according to an embodiment of the present invention. Referring to fig. 5 and 6, when the cover plate 2 and the base plate 1 are combined in the manner shown in fig. 6, the boss 11 can be dropped into the receiving groove 21 to provide a support for the optical spacer ring therein. Since the avoiding groove 22 is communicated with the accommodating groove 21, the film material can pass through the avoiding groove 22 and be attached to the optical spacer ring during film coating. The optical spacer ring is supported against the boss 11 at the back, so that no deformation occurs. As shown in fig. 6, the cover plate 2 and the base plate 1 are rectangular and are detachably connected by the locking assembly 3. In fig. 6, the cover plate 2 is facing upward from the front and the bottom plate 1 from the back; and the back of the bottom plate 1 faces downward and the front faces the cover plate 2. The locking assembly 3 comprises a sliding catch 31 and a central rotating catch 32, and correspondingly, the four corners of the cover plate 2 and the bottom plate 1 are respectively provided with a first sliding groove 24 and a second sliding groove 13, and the centers of the two plates are respectively provided with a first catch hole 25 and a second catch hole 14. The sliding buckle 31 is of a concave structure, and the open end of the sliding buckle extends oppositely to form two clamping teeth. After the two latch teeth of the sliding buckle 31 slide into the first sliding slot 24 and the second sliding slot 13, respectively, the sliding buckle 31 can clamp the cover plate 2 and the bottom plate 1 to realize fixation. The central rotary buckle 32 is divided into three sections, the middle is a cylinder, one end of the cylinder is a long strip-shaped flat plate, and the other end is similar to the screw head of a screw. The first and second snap-in

holes

25, 14 are both elongated through holes, corresponding in shape to the elongated flat plate of the central rotating snap 32, and equal in width to the cylinder in the middle of the central rotating snap 32. Thus, the central rotating buckle 32 passes through the two buckle holes, the cylinder can rotate in the buckle holes, and the long-strip-shaped flat plate can be clamped after rotating for a certain angle, so that further fixation is realized. Of course, the sliding grooves and the snap-in holes on the cover plate 2 and the base plate 1 as well as the locking assembly 3 can also be designed directly with reference to patent CN 106219053A. According to the utility model discloses a conceive, the connected mode of apron 2 and bottom plate 1 is not restricted to above-mentioned buckle and connects this kind, can also form articulated etc. at the edge of two boards through screw connection or as long as can realize apron 2 and bottom plate 1 can be free open and shut can. In order to more accurately position the cover plate 2 and the base plate 1, as can be seen from fig. 1 and 4, a positioning pin 23 is further disposed on one side of the cover plate 2 where the receiving groove 21 is disposed, and a positioning hole 12 capable of being matched with the positioning pin 23 is further disposed on one side of the base plate 1 where the boss 11 is disposed.

In conclusion, the utility model discloses an apron 2, bottom plate 1 and locking Assembly 3 among the coating fixture all adopt resin material integrated into one piece that moulds plastics, also can adopt lens waste material resin injection moulding. Therefore, the coating jig has low cost, short processing period, is suitable for mass production, and is energy-saving and environment-friendly.

The above description is only one embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The coating jig is characterized by comprising a bottom plate (1) and a cover plate (2) detachably connected with the bottom plate (1); bosses (11) which are regularly arranged and protrude from the surface of the bottom plate (1) are arranged on one surface of the bottom plate (1); one surface of the cover plate (2) is provided with accommodating grooves (21) which are in one-to-one correspondence to the shapes and the positions of the bosses (11) on the base plate (1), and the other surface is provided with avoidance grooves (22) which are communicated with the accommodating grooves (21) and are coaxial; holding tank (21) with dodge the size of groove (22) and gradually reduce in opposite directions, just holding tank (21) is close to dodge the one end size of groove (22) and be greater than dodge groove (22) and be close to the one end size of holding tank (21).

2. The coating fixture according to claim 1, wherein the boss (11) is a cylindrical body, the included angle a between the side surface of the cylindrical body and the bottom plate (1) is 90-120 °, and the top surface of the cylindrical body is parallel to the bottom plate (1).

3. The coating fixture according to claim 2, wherein the bosses (11) are arranged on the base plate (1) at intervals and staggered in position.

4. The coating tool according to any one of claims 1 to 3, wherein the surface provided with the boss (11) is further provided with a positioning hole (12).

5. The coating fixture according to claim 4, wherein the accommodating groove (21) and the avoiding groove (22) are truncated conical grooves with opposite upper bottoms;

the diameter of the upper bottom of the avoiding groove (22) is smaller than that of the upper bottom of the accommodating groove (21).

6. The coating fixture according to claim 5, wherein after the base plate (1) and the cover plate (2) are assembled, the side wall of the accommodating groove (21) is parallel to the side surface of the boss (11);

the diameter of the upper bottom of the accommodating groove (21) is larger than or equal to that of the upper bottom of the boss (11), and the diameter of the upper bottom of the avoiding groove (22) is smaller than that of the upper bottom of the boss (11).

7. The coating fixture according to claim 5, wherein the side wall of the avoiding groove (22) is divided into two sections along the central axis, and an included angle between the side wall of one section far away from the accommodating groove (21) and the central axis is larger than that between the side wall of the other section.

8. The coating fixture according to claim 7, wherein an included angle θ between a section of the sidewall of the avoiding groove (22) near the accommodating groove (21) and a plane of the upper bottom of the accommodating groove (21) is 90 ° to 120 °.

9. The coating fixture according to claim 4, wherein the cover plate (2) and the base plate (1) are connected by a hinge, a snap connection or a screw connection.

10. The coating fixture according to claim 4, wherein the surface of the cover plate (2) where the accommodating groove (21) is formed is further provided with a positioning pin (23) capable of being matched with the positioning hole (12) on the bottom plate (1).