KR102657502B1 - Attaching apparatus of coil for camera module - Google Patents

Abstract

The present invention relates to a coil attaching device for a camera module. A coil attaching device for a camera module according to an embodiment of the present invention includes a flex loading unit for loading flex; A coil loading unit that loads a plurality of coils to be joined to the upper surface of the flex; A flex dispensing unit that dispenses a bonding resin to a portion of the upper surface of the flex transferred from the flex loading unit where a plurality of coils are joined; A coil attaching unit that attaches each of the plurality of coils transferred from the coil loading unit to the upper surface of the flex transferred from the flex dispensing unit; a first flex heating unit disposed below the coil attaching unit and heating the lower surface of the flex when the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex; A coil joint unit that joins a plurality of coils attached to the flex transferred from the coil attaching unit to the flex; a second flex heating unit disposed below the coil joint and heating the lower surface of the flex when the coil joint unit joins each of the plurality of coils to the upper surface of the flex; and a flex unloading unit that unloads a plurality of flexes in which a plurality of coils transferred from the coil joint are joined.

Description

{Attaching apparatus of coil for camera module}

The present invention relates to a coil attaching device for a camera module. More specifically, the present invention relates to a coil attaching device for a camera module, and more specifically, to prevent the coils from being misaligned when joining a plurality of coils to the flex surrounding the VCM module provided in the camera module, thereby reducing the bonding defect rate and reducing the bonding defect rate in the camera module. This relates to a coil attaching device for a camera module that can improve the accuracy and productivity of the coil attaching process.

Recently, as products equipped with megapixel cameras have been released on most portable mobile communication terminals, the market for camera-equipped mobile phones has grown rapidly, and consumers are demanding higher resolution and higher quality of video, including still images. is gradually increasing. Accordingly, in addition to the basic shooting function of the built-in camera module mounted on the portable mobile communication terminal, multi-functional portable mobile communication terminals that can complexly implement automatic focus control functions, macro and optical zoom functions, etc. are being developed.

In order to implement the auto focusing function of the built-in camera module used in portable mobile communication terminals, a camera lens and an actuator to drive it are provided. These camera lens driving methods include voice coil motor method, stepping motor method, and ultrasonic wave. There is a motor method. Among these, the voice coil motor type is composed of a permanent magnet and a coil, and is a simple driving principle that implements linear motion with the current flowing in the coil and the magnetic field generated by the permanent magnet. It allows fine adjustment and has a long lifespan. Because it has advantages, it is mainly used as a built-in camera module.

In general, a camera module may include a camera lens, a camera housing, a housing base cover, and circuit wiring, and various processes may be sequentially performed to manufacture such a camera module.

Meanwhile, a typical camera module is equipped with a voice coil motor module (VCM module) that drives the lens to perform an autofocus function, etc.

For example, Domestic Registered Patent Publication No. 10-1960343 (camera lens module) (announced on March 20, 2019), Domestic Patent Publication No. 10-2021-0044871 (camera focus and stabilization system) (announced on March 20, 2021) (released on the 23rd of February) discloses VCM modules of various structures provided in camera modules.

As the importance of the VCM module included in the camera module increases, there is a need for a camera module assembly device to perform a series of processes for assembling the VCM module. In particular, a coil attaching device for a camera module is being developed for the process of joining a plurality of coils to the flex surrounding the VCM module.

For example, in Domestic Patent Publication No. 10-2020-0092560 (Lens Driving Substrate Assembly and Camera Module Including the Same, and Manufacturing Method of Lens Driving Substrate Assembly) (published on August 4, 2020), a camera A method of manufacturing an assembly for driving a lens of a module is disclosed.

However, the conventional coil attaching device for a camera module had the problem of increasing the defective joining rate because each coil was twisted and could not maintain its correct position in the process of joining a plurality of coils to the upper surface of the flex.

Therefore, the camera module can prevent the coils from being misaligned when joining a plurality of coils to the flex surrounding the VCM module provided in the camera module, thereby lowering the bonding defect rate and improving the accuracy and productivity of the coil attaching process for the camera module. A coil attaching device is required.

Domestic Registered Patent Publication No. 10-1960343 (camera lens module) (announced on March 20, 2019) Domestic Patent Publication No. 10-2021-0044871 (Camera Focus and Stabilization System) (published on April 23, 2021) Domestic Patent Publication No. 10-2020-0092560 (Lens driving substrate assembly, camera module including same, and manufacturing method of lens driving substrate assembly) (published on August 4, 2020)

The present invention was invented to improve the above problems, and the problem to be solved by the present invention is to attach a plurality of coils to the flex surrounding the VCM module provided in the camera module. By pre-curing the bonding resin at the time of joining multiple coils to the flex, the bonding defect rate can be reduced by preventing the coil from being misaligned, thus improving the accuracy and productivity of the coil attaching process for camera modules. The aim is to provide a coil attaching device for a camera module that can be improved.

The technical problems of the present invention are not limited to those mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above problem, the coil attaching device for a camera module according to an embodiment of the present invention dispenses bonding resin to the flex surrounding the voice coil motor module (VCM module) provided in the camera module. A coil attaching device for a camera module that dispenses and attaches a plurality of coils, comprising: a flex loading unit that loads flex; a coil loading unit that loads a plurality of coils to be joined to the upper surface of the flex; a flex dispensing unit dispensing a bonding resin to a portion of the upper surface of the flex transferred from the flex loading unit where the plurality of coils are joined; a coil attaching unit attaching each of the plurality of coils transferred from the coil loading unit to an upper surface of the flex transferred from the flex dispensing unit; a first flex heating unit disposed below the coil attaching unit and heating the lower surface of the flex when the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex; a coil joint unit that joins the plurality of coils attached to the flex transferred from the coil attaching unit to the flex; a second flex heater disposed below the coil joint, and heating the lower surface of the flex when the coil joint unit joins each of the plurality of coils to the upper surface of the flex; and a flex unloading unit that unloads the plurality of flexes to which the plurality of coils transferred from the coil joint are joined.

At this time, the flex dispensing unit includes: a first position detection unit that sequentially confirms a position where the adhesive resin is to be dispensed among the upper surfaces of the flex transferred from the flex loading unit; a dispenser disposed on one side of the first position detection unit and dispensing the adhesive resin on an upper surface of the flex transferred from the flex loading unit; and a dispenser driving unit connected to the first position detection unit and the dispenser and driving the first position detection unit and the dispenser in the X-axis, Y-axis, and Z-axis directions.

In addition, the coil attaching unit may include a second position detection unit that sequentially determines a position where each of the plurality of coils is to be attached among the upper surface of the flex transferred from the flex dispensing unit; a plurality of coil pickup units disposed on one side of the second position detection unit and picking up each of the plurality of coils from the coil loading unit and attaching them to an upper surface of the flex transferred from the flex dispensing unit; And a coil pickup driving unit connected to the second position detection unit and the plurality of coil pickup units, and moving the second position detection unit and the plurality of coil pickup units to the X-axis, Y-axis, and Z-axis. .

In addition, the plurality of coil pickup units each include a coil picker having a shape corresponding to each of the plurality of coils and vacuum suctioning each of the plurality of coils; and a coil picker driving unit that reciprocates the coil picker in a direction toward the upper surface of the flex and rotates the coil picker about an upper and lower axis.

In addition, the first flex heating unit, when the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex, heats the position where each of the plurality of coils is attached among the lower surfaces of the flex to A plurality of first heating blocks for pre-curing the bonding resin; and a plurality of first heating block driving units connected to each of the plurality of first heating blocks and reciprocatingly driving each of the plurality of first heating blocks in a direction toward the lower surface of the flex.

In addition, the coil joint unit includes a plurality of tension blocks disposed on top of each of the plurality of coils attached to the flex transferred from the coil attaching unit and pressing each of the plurality of coils attached to the flex; a press block installed so that each of the plurality of tension blocks can move back and forth in an upward and downward direction, and elastically supporting each of the plurality of tension blocks; and a press block driving unit connected to the press block and reciprocating the press block in an upward and downward direction.

In addition, the second flex heating unit is a plurality of second heating blocks that heat the lower surface of the flex to cure the bonding resin when the coil joint unit bonds each of the plurality of coils to the upper surface of the flex. ; and a plurality of second heating block driving units connected to each of the plurality of second heating blocks and reciprocatingly driving each of the plurality of second heating blocks in a direction toward the lower surface of the flex.

Meanwhile, the coil attaching device for a camera module further includes a flex preheating unit that preheats the bonding resin dispensed on the upper surface of the flex transferred from the flex dispensing unit.

In addition, the coil attaching device for the camera module is disposed at a position adjacent to the coil loading unit and the coil attaching unit, and further includes a coil preheating unit that preheats each of the plurality of coils transferred from the coil loading unit. It is characterized by

In addition, the coil attaching device for a camera module further includes a flex inspection unit that inspects the state of the flex to which the plurality of coils transferred from the coil joint are joined, and the flex inspection unit is configured to inspect the state of the flex to which the plurality of coils are joined. a coil state detector that detects the state of the flex; and a detection driver connected to the coil state detector and driving the coil state detector in at least one of the X-axis, Y-axis, and Z-axis directions.

Specific details of other embodiments are included in the detailed description and drawings.

According to the coil attaching device for a camera module according to an embodiment of the present invention, when attaching a plurality of coils to the flex surrounding the VCM module provided in the camera module, a bonding resin is used. By pre-curing and curing the bonding resin when joining multiple coils by pressing them on the flex, the coil can be prevented from being misaligned and the bonding defect rate can be reduced, thereby improving the accuracy and productivity of the coil attaching process for camera modules. there is.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

Figure 1 is a diagram schematically showing the structure of a voice coil motor module (hereinafter referred to as VCM module) provided in a camera module.
Figure 2 is a plan view showing the structure of a coil attaching device for a camera module according to an embodiment of the present invention.
Figure 3 is a plan view showing the structure of a flex loading part, a coil loading part, and a flex unloading part constituting a coil attaching device for a camera module according to an embodiment of the present invention.
Figure 4 is a perspective view showing the structure of the flex dispensing unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.
Figure 5 is a perspective view showing the structure of a coil attaching part constituting a coil attaching device for a camera module according to an embodiment of the present invention.
Figure 6 is a front view showing the structure of the coil attaching part constituting the coil attaching device for a camera module according to an embodiment of the present invention.
Figure 7 is a perspective view showing the structure of the first flex heating unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.
Figure 8 is a plan view showing the structure of the first flex heating unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.
Figure 9 is a perspective view showing the structure of a coil joint constituting a coil attaching device for a camera module according to an embodiment of the present invention.
Figure 10 is a front view showing the structure of a coil joint constituting a coil attaching device for a camera module according to an embodiment of the present invention.
Figure 11 is a perspective view showing the structure of the second flex heating unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.
Figure 12 is a plan view showing the structure of the second flex heating unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.
Figure 13 is a perspective view showing the structure of the flex inspection unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily practice the present invention.

In describing the embodiments, description of technical content that is well known in the technical field to which the present invention belongs and that is not directly related to the present invention will be omitted. This is to convey the gist of the present invention more clearly without obscuring it by omitting unnecessary explanation.

For the same reason, some components are exaggerated, omitted, or schematically shown in the accompanying drawings. Additionally, the size of each component does not entirely reflect its actual size. In each drawing, identical or corresponding components are assigned the same reference numbers.

Additionally, device or element orientation (e.g. “front”, “back”, “up”, “down”, “top”, “bottom”). The expressions and predicates used herein with respect to terms such as ", "left", "right", "lateral", etc. are merely used to simplify the description of the invention and related devices. Alternatively, you may notice that it does not simply indicate or imply that an element should have a particular orientation.

Hereinafter, the present invention will be described with reference to the drawings for explaining a coil attaching device for a camera module according to an embodiment of the present invention.

FIG. 1 is a diagram schematically showing the structure of a voice coil motor module (hereinafter referred to as VCM module) provided in a camera module, and FIG. 2 is a plan view showing the structure of a coil attaching device for a camera module according to an embodiment of the present invention. , and FIG. 3 is a plan view showing the structures of the flex loading unit, coil loading unit, and flex unloading unit that constitute the coil attaching device for a camera module according to an embodiment of the present invention.

1 is an example of a voice coil motor module 10 (hereinafter referred to as VCM module 10) provided in a camera module, and the VCM module 10 includes a VCM base 11, a flex 12, and a plurality of An example consisting of a coil (13) is shown.

As shown in (a) of FIG. 1, the VCM module 10 is coupled so that the flex 12 to which a plurality of coils 13 are bonded surrounds the outer surface of the VCM base 11, and (in FIG. 1) As shown in b), a plurality of coils 13, 13A, 13B, and 13C may be joined to the upper surface of the flex 12 in an unfolded state. Figure 1 shows an example in which three coils 13A, 13B, and 13C are joined at positions corresponding to three surfaces of the VCM base 11 on the upper surface of the flex 12, but the present invention is not limited thereto.

The coil attaching device for a camera module according to an embodiment of the present invention dispenses a bonding resin to the flex 12 shown in (b) of FIG. 1 and then attaches a plurality of coils 13 to the flex 12. It can be joined by attaching.

As shown in FIG. 2, the coil attaching device for a camera module according to an embodiment of the present invention includes a flex loading unit 100, a coil loading unit 200, a flex dispensing unit 300, and a coil attaching unit 400. ), a first flex heating unit 500, a coil joint 600, a second flex heating unit 700, and a flex unloading unit 800.

The flex loading unit 100 can load the flex 12 from the outside. As shown in Figures 2 and 3, the flex loading unit 100 receives a flex tray (T) containing a plurality of flexes 12 from the outside, transfers it to a location adjacent to the flex dispensing unit 300, and then The flex tray (T) can be transferred to a position adjacent to the coil attaching part 400 and the coil joining part 600. Figure 3 shows an example in which 15 × 2 flexes 12 are accommodated in the flex tray T along the transfer direction.

As shown in FIG. 3, the flex loading unit 100 includes a pair of first tray guide rails 110 that guide the transport of the flex tray (T) while supporting both sides of the flex tray (T) in the width direction. , a plurality of first tray stoppers 120 disposed at predetermined positions along the transfer direction of the flex tray (T) and supporting both sides in the longitudinal direction (transfer direction) of the flex tray (T), and a pair of adjacent first tray stoppers. 1 It may be composed of a plurality of first tray pushers 130 that push one side of the flex tray (T) supported by the tray stopper 120 to align it between a pair of first tray guide rails 110.

That is, the flex tray (T) is transported by a transport means such as a conveyor installed on each of the pair of first tray guide rails 110, and is stopped at the desired position by the pair of adjacent first tray stoppers 120. , it can be aligned and in close contact with one of the pair of first tray guide rails 110 by the pair of adjacent first tray pushers 130.

The coil loading unit 200 is disposed on one side of the coil attaching unit 400 and can load a plurality of coils 13 to be joined to the upper surface of the flex 12. As shown in FIG. 2, the plurality of coils 13 loaded on the coil loading unit 200 are adjacent to the coil loading unit 200 and the coil attaching unit 400 before being transferred to the coil attaching unit 400. It may be preheated in advance by the coil preheating unit 1000 disposed in the location. Although not shown in detail, the coil loading unit 200 may load a plurality of coils 13 by receiving a coil tray (not shown) in which the plurality of coils 13 are accommodated.

The flex dispensing unit 300 may dispense bonding resin to a portion of the upper surface of the flex 12 transferred from the flex loading unit 100 where the plurality of coils 13 are joined.

Figure 4 is a perspective view showing the structure of the flex dispensing unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.

As shown in FIG. 4, the flex dispensing unit 300 may be configured to include a first position detection unit 310, a dispenser 320, and a dispenser driving unit 330.

The first position detection unit 310 detects a position at which the adhesive resin is to be dispensed among the upper surfaces of each of the plurality of flexes 12 accommodated in the flex tray T transferred from the flex loading unit 100, that is, a plurality of coils ( 13) You can sequentially check where each piece will be joined. As shown in FIG. 4, the first position detection unit 310 includes a vision camera 311 that photographs the upper surface of the flex 12, and a distance detection sensor that measures the distance to the upper surface of the flex 12 ( 312).

The dispenser 320 is disposed on one side of the first position detection unit 310 and dispenses adhesive resin on the upper surface of each of the plurality of flexes 12 accommodated in the flex tray T transferred from the flex loading unit 100. You can fencing. As shown in FIG. 4, the dispenser 320 dispenses adhesive resin at a location where each coil 13 will come into contact, forming a pattern (Sealing line) corresponding to the shape of the coil 13. 12a) can be formed.

Preferably, the dispenser 320 uses a jet dispenser that sprays adhesive resin at high speed in a non-contact manner, and the adhesive resin may use epoxy resin.

The dispenser driving unit 330 is connected to the first position detection unit 310 and the dispenser 320, and can drive the first position detection unit 310 and the dispenser 320 in the X-axis, Y-axis, and Z-axis directions. This dispenser drive unit 330 includes a drive motor that generates a rotational drive force, a ball screw that rotates by receiving rotational drive force from the drive motor, and a slider that is coupled to the thread of the ball screw and reciprocates in the horizontal direction when the ball screw rotates. ), it can be configured by arranging three linear motor systems (Linear motor system) consisting of a guide rail (Linear motion guide) that guides the movement of the slider in the X-axis, Y-axis, and Z-axis directions.

Meanwhile, the coil attaching device for a camera module according to an embodiment of the present invention includes a flex preheating unit 900 for preheating the plurality of flexes 12 accommodated in the flex tray T transferred from the flex loading unit 100. ) may also be included. As shown in FIG. 2, the flex preheating unit 900 is disposed between the flex dispensing unit 300 and the coil attaching unit 400, and attaches a plurality of coils 13 to the upper surface of the flex 12. Before applying, the bonding resin dispensed on the upper surface of the flex 12 can be pre-cured by preheating.

Referring again to FIG. 2, the coil attaching unit 400 attaches each of the plurality of coils 13 transferred from the coil loading unit 200 to the upper surface of the flex 12 transferred from the flex dispensing unit 300. (Attaching) is possible.

Figure 5 is a perspective view showing the structure of a coil attaching unit constituting a coil attaching device for a camera module according to an embodiment of the present invention, and Figure 6 is a coil attaching device for a camera module according to an embodiment of the present invention. This is a front view showing the structure of the coil attachment part.

As shown in FIG. 5, the coil attaching unit 400 may be configured to include a second position detection unit 410, a plurality of coil pickup units 420, and a coil pickup driver 430.

The second position detection unit 410 sequentially confirms the position where each of the plurality of coils 13 is to be joined among the upper surfaces of each of the plurality of flexes 12 accommodated in the flex tray T transferred from the flex dispensing unit 300. You can. As shown in FIG. 6, the first position detection unit 310 may use a vision camera that photographs the upper surface of the flex 12.

The plurality of coil pickup units 420 are disposed on one side of the second position detection unit 410, and pick up each of the plurality of coils 13 from the coil loading unit 200 and transfer them from the flex dispensing unit 300 to the flex tray. It can be attached to the upper surface of each of the plurality of flexes 12 accommodated in (T). This coil pickup unit 420 is operated in a state in which the lower surfaces of each of the plurality of flexes 12 accommodated in the flex tray T transferred from the flex dispensing unit 300 are supported by the plurality of first heating blocks 510. , each of the plurality of coils 13 can be attached to the upper surface of the flex 12.

Preferably, each coil pickup unit 420 may pick up each of the plurality of coils 13 using a vacuum suction method and attach them to the upper surface of the flex 12. As shown in FIG. 6, each coil pickup unit 420 includes a coil picker 421 that has a shape corresponding to each of the plurality of coils 13 and vacuum-sucks each of the plurality of coils 13, and a coil picker It may be configured to include a coil picker driver 422 that drives the coil picker 421 to reciprocate in a direction toward the upper surface of the flex 12 and rotates the coil picker 421 about the vertical axis.

As shown in FIG. 5, the coil pickup driver 430 is connected to the second position detection unit 410 and the plurality of coil pickup units 420, and the second position detection unit 410 and the plurality of coil pickup units 420 ) may be configured to include a coil pickup driver 430 that moves the X-axis, Y-axis, and Z-axis. This coil pickup driver 430 may be configured by arranging three linear motor systems in the X-axis, Y-axis, and Z-axis directions, similar to the dispenser driver 330 shown in FIG. 4.

Referring again to FIG. 2, the first flex heating unit 500 is disposed below the coil attaching unit 400, and the coil attaching unit 400 attaches each of the plurality of coils 13 to the upper surface of the flex 12. When attaching to the flex 12, the lower surface of the flex 12 can be heated.

Figure 7 is a perspective view showing the structure of the first flex heating unit constituting the coil attaching device for a camera module according to an embodiment of the present invention, and Figure 8 is a coil attaching device for a camera module according to an embodiment of the present invention. This is a plan view showing the structure of the first flex heating unit constituting the .

As shown in FIG. 7 , the first flex heating unit 500 may be configured to include a plurality of first heating blocks 510 and a plurality of first heating block driving units 520.

A plurality of first heating blocks 510 are provided for each of the plurality of coils 13 to be attached to the upper surface of the flex 12, and are installed at the lower part of the flex tray T transferred from the flex dispensing unit 300. can be placed. As shown in FIG. 8, each first heating block 510 may be disposed at a position corresponding to each of the plurality of coils 13 to be attached to the upper surface of the flex 12. For example, as shown in Figure 1, when three coils 13 are attached to the upper surface of the flex 12, as shown in Figures 7 and 8, each flex 12 is Three first heating blocks 510 may be arranged side by side below the position where the three coils 13 are attached.

When the coil attaching unit 400 attaches each of the plurality of coils 13 to the upper surface of the flex 12, the plurality of first heating blocks 510 attach the plurality of coils 13 to the lower surface of the flex 12. ) The bonding resin can be pre-cured by heating each attached location. As shown in FIG. 7, each first heating block 510 includes a first heating block body 511 with a receiving space formed therein, and a first heater inserted into the receiving space of the first heating block body 511. The member 512 and the first temperature sensor 513, the first heating block tip 514 coupled to one side of the first heating block body 511 and in contact with the lower surface of the flex 12, and the first heating block body It may be composed of a first insulation member 515 disposed between 511 and the first heating block driving unit 520.

The plurality of first heating block driving units 520 are connected to each of the plurality of first heating blocks 510, and reciprocally drive each of the plurality of first heating blocks 510 in a direction toward the lower surface of the flex 12. You can. This first heating block driving unit 520 may use a pneumatic cylinder.

Meanwhile, the first flex heating unit 500 is connected to a plurality of first heating block driving units 520, and is a first heater that reciprocates the plurality of first heating blocks 510 along the transport direction of the flex 12. It may also include a driving unit 530.

That is, as shown in FIG. 3, when a plurality of flexes 12 are accommodated in the flex tray (T), as shown in FIG. 8, the first heater driver 530 is configured to accommodate a pair of flex trays (T). In a state supported on the first tray guide rail 110, the plurality of first heating blocks 510 are disposed of the flex 12 along the transport direction (right direction in the example of FIG. 8) of the flex 12. The attaching process and heating process for each of the plurality of coils 13 can be sequentially performed for each flex 12 arranged along the longitudinal direction of the flex tray T while being transferred at an interval.

Referring again to FIG. 2 , the coil joining unit 600 may join the plurality of coils 13 attached to the upper surface of the flex 12 transferred from the coil attaching unit 400 to the flex 12 .

Figure 9 is a perspective view showing the structure of a coil joint constituting a coil attaching device for a camera module according to an embodiment of the present invention, and Figure 10 is a configuration of a coil attaching device for a camera module according to an embodiment of the present invention. This is a front view showing the structure of the coil joint.

As shown in FIG. 9, the coil joint 600 may be configured to include a plurality of tension blocks 610, a press block 620, and a press block driver 630.

A plurality of tension blocks 610 are provided for each of the plurality of coils 13 attached to the upper surface of the flex 12, and are disposed on the upper part of the flex tray T transferred from the coil attaching unit 400. You can. As shown in FIG. 9 , each tension block 610 may be disposed at a position corresponding to each of the plurality of coils 13 attached to the upper surface of the flex 12. For example, as shown in Figure 1, when three coils 13 are attached to the upper surface of the flex 12, as shown in Figures 9 and 10, each flex 12 Three tension blocks 610 may be arranged side by side on the upper part of the position where the three coils 13 are attached.

The plurality of tension blocks 610 are disposed on top of each of the plurality of coils 13 attached to the upper surface of each of the plurality of flexes 12 accommodated in the flex tray T transferred from the coil attaching unit 400. , each of the plurality of coils 13 attached to the upper surface of the flex 12 can be pressed and bonded to the upper surface of the flex 12.

The press block 620 is installed so that each of the plurality of tension blocks 610 can reciprocate in the up and down directions, and can elastically support each of the plurality of tension blocks 610. As shown in FIG. 10, the press block 620 includes an elastic member on each of the plurality of tension blocks 610 to provide elastic force when each of the plurality of tension blocks 610 presses each of the plurality of coils 13. (621) may be provided.

The press block driver 630 is connected to the press block 620 and can reciprocate the press block 620 in the up and down directions. As shown in FIG. 10, the press block driving unit 630 may use a pneumatic cylinder.

Referring again to FIG. 2, the second flex heating unit 700 is disposed below the coil joint 600, and the coil joint 600 connects each of the plurality of coils 13 to the upper surface of the flex 12. When doing so, the lower surface of the flex 12 can be heated.

Figure 11 is a perspective view showing the structure of the second flex heating unit constituting the coil attaching device for a camera module according to an embodiment of the present invention, and Figure 12 is a coil attaching device for a camera module according to an embodiment of the present invention. This is a plan view showing the structure of the second flex heating unit constituting the .

As shown in FIG. 11, the second flex heating unit 700 may be configured to include a plurality of second heating blocks 710 and a plurality of second heating block driving units 720.

A plurality of second heating blocks 710 are provided for each of the plurality of coils 13 attached to the upper surface of the flex 12, and are installed at the lower part of the flex tray T transferred from the coil attaching unit 400. can be placed. As shown in FIG. 12 , each second heating block 710 may be disposed at a position corresponding to each of the plurality of coils 13 attached to the upper surface of the flex 12 . For example, as shown in Figure 1, when three coils 13 are attached to the upper surface of the flex 12, as shown in Figures 11 and 12, each flex 12 Three second heating blocks 710 may be arranged side by side below the position where the three coils 13 are attached.

When the coil joint 600 connects each of the plurality of coils 13 to the upper surface of the flex 12, the plurality of second heating blocks 710 connect the plurality of coils 13 to the lower surface of the flex 12. The bonding resin can be completely cured by heating each attached location. As shown in FIG. 11, each second heating block 710 includes a second heating block body 711 with a receiving space formed therein, and a second heater inserted into the receiving space of the second heating block body 711. The member 712 and the second temperature sensor 713, the second heating block tip 714 coupled to one side of the second heating block body 711 and in contact with the lower surface of the flex 12, and the second heating block body It may be composed of a second heat insulating member 715 disposed between 711 and the second heating block driving unit 720.

The plurality of second heating block driving units 720 are connected to each of the plurality of second heating blocks 710, and reciprocally drive each of the plurality of second heating blocks 710 in the direction toward the lower surface of the flex 12. You can. This second heating block driving unit 720 may use a pneumatic cylinder.

Meanwhile, unlike the first heating block 510 shown in FIG. 8, the second heating block 710 constituting the second flex heating unit 700 is not provided individually for each of the plurality of flexes 12. Instead, it may be formed to be long along the width direction of the flex 12 so that a plurality of flexes 12 can be heated simultaneously. Accordingly, the second heating block 710 can heat the plurality of flexes 12 to an overall uniform temperature without temperature deviation.

Referring again to FIG. 2, the flex unloading unit 800 may unload the plurality of flexes 12 to which the plurality of coils 13 transferred from the coil joint 600 are joined. As shown in FIGS. 2 and 3, the flex unloading unit 800 may receive the flex tray T transferred from the coil joint 600 and unload it to the outside.

As shown in FIG. 3, the flex unloading unit 800 may be implemented to have a structure and operation similar to the flex loading unit 100. That is, the flex unloading unit 800 includes a pair of second tray guide rails 810 that guide the transport of the flex tray (T) while supporting both sides of the flex tray (T) in the width direction, and a flex tray (T ), a plurality of second tray stoppers 820 disposed at predetermined positions along the transfer direction and supporting both sides in the longitudinal direction (transfer direction) of the flex tray T, and a pair of adjacent second tray stoppers 820 ) may be composed of a plurality of second tray pushers 830 that push one side of the flex tray (T) supported by and align it between a pair of second tray guide rails 810.

Meanwhile, the coil attaching device for a camera module according to an embodiment of the present invention includes a flex inspection unit 1100 for inspecting the state of the flex 12 to which the plurality of coils 13 transferred from the coil joint 600 are joined. ) may include.

Figure 13 is a perspective view showing the structure of the flex inspection unit constituting the coil attaching device for a camera module according to an embodiment of the present invention.

As shown in FIG. 13, the flex inspection unit 1100 includes a coil state detection unit 1110 that detects the state of the flex 12 where a plurality of coils 13 are joined, and a coil state detection unit 1110 along the It may be configured to include a detection driver 1120 that drives in at least one of the Y-axis and Z-axis directions. At this time, the coil state detector 1110 may use a vision camera.

Therefore, the flex inspection unit 1100 sequentially photographs the positions of each of the plurality of coils 13 joined to each of the plurality of flexes 12 accommodated in the flex tray T to determine whether each of the plurality of flexes 12 is good or defective. You can check whether it is recognized or not.

In this way, the coil attaching device for a camera module according to an embodiment of the present invention uses a bonding resin when attaching a plurality of coils 13 to the flex 12 surrounding the VCM module 10 provided in the camera module. By pre-curing and curing the bonding resin when pressing and joining the plurality of coils 13 to the flex 12, the position of the coil 13 can be prevented from being distorted and the bonding defect rate can be reduced, so the camera module coil ( 13) The accuracy and productivity of the attaching process can be improved.

Meanwhile, in the present invention, the case where three coils 13 are joined to the flex 12 constituting the VCM module 10 is described as an example, but the scope of application of the present invention is not limited thereto, and the present invention can be applied to VCM modules of various structures.

Meanwhile, in this specification and drawings, preferred embodiments of the present invention are disclosed, and although specific terms are used, they are used only in a general sense to easily explain the technical content of the present invention and aid understanding of the present invention. It is not intended to limit the scope of the invention. It is obvious to those skilled in the art that in addition to the embodiments disclosed herein, other modifications based on the technical idea of the present invention can be implemented.

<Explanation of symbols for main parts of the drawing>
1: Coil attaching device for camera module
10: VCM module 11: Housing base
12: Flex 13: Coil
100: Flex loading unit 110: First tray guide rail
120: First tray stopper 130: First tray pusher
200: coil loading unit 300: flex dispensing unit
310: first position detection unit 320: dispenser
330: Dispenser driving unit 400: Coil attaching unit
410: Second position detection unit 420: Coil pickup unit
430: Coil pickup driving unit 500: First flex heating unit
510: first heating block 520: first heating block driving unit
530: first heater driving part 600: coil junction part
610: Tension block 620: Press block
630: Press block driving unit 700: Second flex heating unit
710: second heating block 720: second heater driving unit
800: Flex unloading unit 810: Second tray guide rail
820: Second tray stopper 830: Second tray pusher
900: Flex preheating unit 1000: Coil preheating unit
1100: Flex inspection unit 1110: Coil status detection unit
1120: Detection driving unit

Claims (10)

A coil attaching device for a camera module that attaches multiple coils by dispensing bonding resin to the flex surrounding the voice coil motor module (VCM module) provided in the camera module. In
Flex loading unit for loading flex;
a coil loading unit that loads a plurality of coils to be joined to the upper surface of the flex;
a flex dispensing unit dispensing a bonding resin to a portion of the upper surface of the flex transferred from the flex loading unit where the plurality of coils are joined;
a coil attaching unit attaching each of the plurality of coils transferred from the coil loading unit to an upper surface of the flex transferred from the flex dispensing unit;
a first flex heating unit disposed below the coil attaching unit and heating the lower surface of the flex when the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex;
a coil joint unit that joins the plurality of coils attached to the flex transferred from the coil attaching unit to the flex;
a second flex heater disposed below the coil joint, and heating the lower surface of the flex when the coil joint unit joins each of the plurality of coils to the upper surface of the flex; and
It includes a flex unloading unit that unloads the plurality of flexes to which the plurality of coils transferred from the coil joint are joined,
The coil junction is,
a plurality of tension blocks disposed on each of the plurality of coils attached to the flex transferred from the coil attaching unit and pressing each of the plurality of coils attached to the flex;
a press block installed so that each of the plurality of tension blocks can move back and forth in an upward and downward direction, and elastically supporting each of the plurality of tension blocks; and
A coil attaching device for a camera module, comprising a press block driving unit connected to the press block and reciprocating the press block in an upward and downward direction. According to claim 1,
The flex dispensing unit,
a first position detection unit that sequentially confirms a position on the upper surface of the flex transferred from the flex loading unit where the adhesive resin is to be dispensed;
a dispenser disposed on one side of the first position detection unit and dispensing the adhesive resin on an upper surface of the flex transferred from the flex loading unit; and
A coil attaching device for a camera module, comprising a dispenser driving unit connected to the first position detection unit and the dispenser and driving the first position detection unit and the dispenser in the X-axis, Y-axis, and Z-axis directions. According to claim 1,
The coil attaching part,
a second position detection unit that sequentially determines a position on the upper surface of the flex transferred from the flex dispensing unit where each of the plurality of coils is to be joined;
a plurality of coil pickup units disposed on one side of the second position detection unit and picking up each of the plurality of coils from the coil loading unit and attaching them to an upper surface of the flex transferred from the flex dispensing unit; and
A camera comprising a coil pickup driving unit connected to the second position detection unit and the plurality of coil pickup units and moving the second position detection unit and the plurality of coil pickup units to the X-axis, Y-axis, and Z-axis. Coil attaching device for modules. According to claim 3,
Each of the plurality of coil pickup units,
a coil picker having a shape corresponding to each of the plurality of coils and vacuum suctioning each of the plurality of coils; and
A coil attaching device for a camera module, comprising a coil picker driving unit that reciprocates the coil picker in a direction toward the upper surface of the flex and rotates the coil picker about a vertical axis. According to claim 1,
The first flex heating unit,
When the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex, a plurality of agents for pre-curing the bonding resin by heating a position on the lower surface of the flex where each of the plurality of coils is attached. 1 heating block; and
A camera module comprising a plurality of first heating block driving units connected to each of the plurality of first heating blocks and reciprocating driving each of the plurality of first heating blocks in a direction toward the lower surface of the flex. Coil attaching device. delete According to claim 1,
The second flex heating unit,
When the coil joint unit bonds each of the plurality of coils to the upper surface of the flex, a plurality of second heating blocks that heat the lower surface of the flex to harden the bonding resin; and
A camera module comprising a plurality of second heating block driving units connected to each of the plurality of second heating blocks and reciprocating driving each of the plurality of second heating blocks in a direction toward the lower surface of the flex. Coil attaching device. A coil attaching device for a camera module that attaches multiple coils by dispensing bonding resin to the flex surrounding the voice coil motor module (VCM module) provided in the camera module. In
Flex loading unit for loading flex;
a coil loading unit that loads a plurality of coils to be joined to the upper surface of the flex;
a flex dispensing unit dispensing a bonding resin to a portion of the upper surface of the flex transferred from the flex loading unit where the plurality of coils are joined;
a coil attaching unit attaching each of the plurality of coils transferred from the coil loading unit to an upper surface of the flex transferred from the flex dispensing unit;
a first flex heating unit disposed below the coil attaching unit and heating the lower surface of the flex when the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex;
a coil joint unit that joins the plurality of coils attached to the flex transferred from the coil attaching unit to the flex;
a second flex heater disposed below the coil joint, and heating the lower surface of the flex when the coil joint unit joins each of the plurality of coils to the upper surface of the flex;
a flex unloading unit that unloads the plurality of flexes to which the plurality of coils transferred from the coil joint are joined; and
A coil attaching device for a camera module, comprising a flex preheating unit that preheats the bonding resin dispensed on the upper surface of the flex transferred from the flex dispensing unit. A coil attaching device for a camera module that attaches multiple coils by dispensing bonding resin to the flex surrounding the voice coil motor module (VCM module) provided in the camera module. In
Flex loading unit for loading flex;
a coil loading unit that loads a plurality of coils to be joined to the upper surface of the flex;
a flex dispensing unit dispensing a bonding resin to a portion of the upper surface of the flex transferred from the flex loading unit where the plurality of coils are joined;
a coil attaching unit attaching each of the plurality of coils transferred from the coil loading unit to an upper surface of the flex transferred from the flex dispensing unit;
a first flex heating unit disposed below the coil attaching unit and heating the lower surface of the flex when the coil attaching unit attaches each of the plurality of coils to the upper surface of the flex;
a coil joint unit that joins the plurality of coils attached to the flex transferred from the coil attaching unit to the flex;
a second flex heater disposed below the coil joint, and heating the lower surface of the flex when the coil joint unit joins each of the plurality of coils to the upper surface of the flex;
a flex unloading unit that unloads the plurality of flexes to which the plurality of coils transferred from the coil joint are joined; and
A coil attaching device for a camera module, comprising a coil preheating unit disposed adjacent to the coil loading unit and the coil attaching unit, and preheating each of the plurality of coils transferred from the coil loading unit. According to any one of claims 1, 8 and 9,
The coil attaching device for the camera module,
It further includes a flex inspection unit that inspects the state of the flex to which the plurality of coils transferred from the coil joint are joined,
The flex inspection unit,
a coil state detector that detects the state of the flex to which the plurality of coils are joined; and
A coil attaching device for a camera module, comprising a detection driver connected to the coil state detector and driving the coil state detector in at least one of the X-axis, Y-axis, and Z-axis directions.

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