KR102681531B1 - Cutting device of lens gate for camera module - Google Patents

Abstract

The present invention relates to a lens gate cutting device. A lens gate cutting device according to an embodiment of the present invention includes a lens injection-molded product supply unit that supplies a plurality of first lens injection-molded products including a plurality of lenses; A plurality of lower cutting parts and a plurality of upper cutting parts provided for each of the plurality of first lens injection-molded products and cutting a plurality of gates provided in each of the plurality of first lens injection-molded products; A plurality of lens pickup units provided for each of the plurality of lower cutting units and picking up a plurality of lenses separated from each of the plurality of first lens injection products and loading them on a plurality of lens receiving trays; and disposed at a position adjacent to the lens injection-molded material supply unit and the plurality of lower cutting parts, and loading each of the plurality of first lens injection-molded products supplied from the lens injection-molded material supply unit into each of the plurality of lower cutting parts or each of the plurality of first lens injection-molded products. Unloading each of the plurality of second lens injection molded products from which the plurality of lenses are separated from each other to the outside from each of the plurality of lower cutting portions includes a lens injection material transfer portion, a plurality of lower cutting portions, a plurality of upper cutting portions, and a plurality of plurality of lens injection molding portions. The lens pickup unit is disposed on both sides of the lens injection product transport unit with the lens injection product transport unit in between.

Description

Lens gate cutting device {Cutting device of lens gate for camera module}

The present invention relates to a lens gate cutting device, and more specifically, to a lens gate cutting device that can improve the productivity and efficiency of the lens gate cutting process by performing the entire lens gate cutting process more quickly and accurately.

In general, a camera refers to an optical device for taking photos or videos. Recently, image sensors such as CCD (Charge-coupled Device) or CMOS (Complementary Metal-Oxide Semiconductor) are used to photograph subjects and then convert them into digital format. Digital cameras that generate video data are becoming widely available.

These digital cameras can be manufactured as camera modules with a smaller overall size as the image sensor is integrated, and as a result, they can be applied to the interior of portable terminals such as smart phones, leading to the widespread adoption of various types of smart devices. Accordingly, the demand is rapidly increasing.

These camera modules are composed of an image sensor such as a lens, CCD or CMOS to implement the auto focusing function, and an actuator to drive the lens. The lenses that make up the camera module are difficult to manufacture individually. However, because manufacturing efficiency decreases, it is manufactured through a process of injection molding one lens injection molded product with a plurality of lenses connected to it, then cutting the plurality of gates connecting the runner of the lens injection molded product and the plurality of lenses to separate them into individual lenses.

Meanwhile, cutting the gate of an injection-molded lens product was traditionally done manually by workers, but there were problems such as damage to the lens and increased work time, which reduced productivity. Recently, cutting the gate has been done automatically using cutters, etc. A lens gate cutting device that can cut is being developed.

For example, in Domestic Registered Patent Publication No. 10-1178928 (Lens Gate Cutting Device) (announced on September 4, 2012), a plurality of gates are simultaneously cut for a lens injection molded product in which a plurality of lenses are formed radially to form a plurality of lenses. The structure of a lens gate cutting device that can simultaneously extract is disclosed.

This lens gate cutting device uses a plurality of cutters to simultaneously cut a plurality of gates formed on an injection-molded lens product to separate the plurality of lenses and then individually load the plurality of lenses onto a tray, etc.

However, the conventional lens gate cutting device has the advantage of being able to shorten the lens gate cutting time by simultaneously cutting a plurality of lenses provided in the lens injection product using a plurality of cutters, but each of the plurality of lenses separated from the lens injection product is cut. In order to load one lens onto a tray, each lens must be transported to a predetermined location and then loaded individually, which requires a relatively long time compared to the lens gate cutting time. Multiple lenses that have completed lens gate cutting must have been previously cut. There was a problem in that the entire lens gate cutting process had to wait until all of the multiple lenses were loaded onto the tray, which took a long time.

Therefore, there is a need for a lens gate cutting device that can improve the productivity and efficiency of the lens gate cutting process by performing the entire lens gate cutting process more quickly and accurately.

Domestic Registered Patent Publication No. 10-1178928 (Lens gate cutting device) (announced on September 4, 2012)

The present invention was invented to improve the above-mentioned problems, and the problem to be solved by the present invention is to provide a plurality of lower cutting parts, a plurality of upper cutting parts, and a plurality of lens pickup parts for each of the plurality of lens injection molded products, By arranging a plurality of lower cutting units, a plurality of upper cutting units, and a plurality of lens pickup units on both sides with a lens injection product transfer unit for loading or unloading lens injection products, the lens gate cutting process for multiple lens injection products can be performed simultaneously. To provide a lens gate cutting device that can improve the productivity and efficiency of the lens gate cutting process by reducing the time of the entire lens gate cutting process.

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 object, a lens gate cutting device according to an embodiment of the present invention includes a lens injection-molded product supply unit that supplies a plurality of first lens injection-molded products including a plurality of lenses; A plurality of lower cutting parts and a plurality of upper cutting parts provided for each of the plurality of first lens injection-molded products, for cutting a plurality of gates provided in each of the plurality of first lens injection-molded products; a plurality of lens pickup units provided for each of the plurality of lower cutting units, and configured to pick up the plurality of lenses separated from each of the plurality of first lens injection moldings and place them on a plurality of lens receiving trays; and disposed at a position adjacent to the lens injection-molded material supply unit and the plurality of lower cutting parts, and loading each of the plurality of first lens injection-molded products supplied from the lens injection-molded material supply unit into each of the plurality of lower cutting parts. Unloading each of the plurality of second lens injection-molded products, in which the plurality of lenses are separated from each of the first lens injection-molded products, from each of the plurality of lower cutting units to the outside includes a lens injection product transfer unit, wherein the plurality of lower cutting units The lens injection unit, the plurality of upper cutting units, and the plurality of lens pickup units are disposed on both sides of the lens injection product transport unit with the lens injection product transport unit interposed therebetween.

At this time, each of the plurality of lower cutting units includes a walking block on which the first lens injection-molded product is mounted, a plurality of lower cutters for cutting each of the plurality of gates provided in the first lens injection-molded product, and each of the plurality of lower cutters. A plurality of lower cutter fixing parts for fixing, the working block and a working block driving part for reciprocating the plurality of lower cutter fixing parts in a horizontal direction, each of the plurality of upper cutting parts is seated on the working block. A support block supporting the first lens injection product, a plurality of upper cutters for cutting each of the plurality of gates together with each of the plurality of lower cutters, a plurality of upper cutter fixing units for fixing each of the plurality of upper cutters, and the support block and a support block driving unit that reciprocates the plurality of upper cutter fixing units in an upward and downward direction, wherein each of the plurality of lens pickup units simultaneously picks up the plurality of lenses separated from the first lens injection molded product to form the plurality of lenses. It is characterized by comprising a lens pickup unit loaded on a lens receiving tray, and a lens pickup unit driving unit that drives the lens pickup unit.

In addition, the working block driving unit sequentially moves the working block to a first position adjacent to the lens injection product transfer unit, a second position adjacent to the plurality of upper cutters, and a third position between the first position and the second position. It is characterized in that the working block is transferred to move.

Additionally, the lens pickup unit includes a plurality of vacuum adsorption units that are installed to reciprocate in the vertical direction and vacuum adsorb the plurality of lenses; a first vacuum adsorption driving unit disposed on an upper portion of the plurality of vacuum adsorption units and individually reciprocating each of the plurality of vacuum adsorption units; and a second vacuum adsorption driving unit connected to the first vacuum adsorption driving unit, and driving the first vacuum adsorption driving unit so that the first vacuum adsorption driving unit sequentially reciprocates each of the plurality of vacuum adsorption units. It is characterized by

In addition, the lens pickup unit driving unit drives the lens pickup unit in the X-axis, Y-axis, and Z-axis directions, and rotates the lens pickup unit about the Z-axis on the XY plane.

In particular, the lens pickup unit driving unit is characterized as a 4-axis driving scalar robot.

In addition, the lens injection-molded product transfer unit is provided for each of the plurality of first lens injection-molded products, and loads each of the plurality of first lens injection-molded products into a working block provided in each of the plurality of lower cutting units or A plurality of lens injection-molded product pickup units for unloading each of the second lens injection-molded objects from the walking block provided in each of the plurality of lower cutting parts to the outside; and a pair of lens injection-molded product pickup unit driving units that drive the plurality of lens injection-molded product pickup units between the lens injection-molded product supply unit and each of the plurality of lower cutting units.

In addition, each of the plurality of lens injection-molded product pickup units includes a pair of grippers that grip or release first fixing protrusions provided on top of the first lens injection-molded product and the second lens injection-molded product; and a gripper driving unit that drives the pair of grippers.

Meanwhile, the lens gate cutting device is disposed between the plurality of lower cutting parts and the plurality of lens receiving trays, and the plurality of first lens injection molded parts are formed by the plurality of lower cutting parts and the plurality of upper cutting parts. It is characterized in that it further includes a plurality of lens alignment units that align the plurality of lenses separated from each other.

At this time, each of the plurality of lens alignment units is a lens alignment block on which the plurality of lenses separated from the first lens injection product are seated and aligned, and the plurality of lenses are picked up from the walking block and seated on the lens alignment block. It includes a lens transfer unit, a lens alignment block driving unit that reciprocates the lens alignment block in a horizontal direction, and the lens pickup unit simultaneously picks up the plurality of lenses aligned by the lens alignment block to collect the plurality of lenses. It is characterized by dividing and loading it into receiving trays.

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

According to an embodiment of the present invention, the lens gate cutting device includes a plurality of lower cutting parts, a plurality of upper cutting parts, and a plurality of lens pickup parts for each of the plurality of lens injection products, and a plurality of lower cutting parts and a plurality of lens pickup parts. By arranging the upper cutting unit and the plurality of lens pickup units on both sides with the lens injection product transfer unit for loading or unloading the lens injection product, the lens gate cutting process for multiple lens injection products is performed simultaneously, thereby completing the entire lens gate cutting process. Because the time can be shortened, the productivity and efficiency of the lens gate cutting process can be improved.

In addition, according to the lens gate cutting device according to an embodiment of the present invention, the lens pickup unit is configured to simultaneously pick up a plurality of lenses and individually release each lens, so that the lens pickup process can be performed more quickly. In addition, the lens loading process can be performed more accurately.

In addition, according to the lens gate cutting device according to an embodiment of the present invention, the lens pickup unit driving unit not only drives the lens pickup unit linearly in the X-axis, Y-axis, and Z-axis directions, but also rotates it around the Z-axis, The lens loading process can be performed more quickly and accurately for lenses of various shapes.

In addition, according to the lens gate cutting device according to an embodiment of the present invention, by using a scalar robot as a lens pickup unit driver, not only can the lens pickup unit be driven more stably, but also the lens pickup unit can be driven more stably. Repeatability and precision can be improved.

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.

1 is a diagram showing an example of an injection-molded lens product to which a lens gate cutting device according to an embodiment of the present invention is applied.
Figure 2 is a plan view showing the structure of a lens gate cutting device according to an embodiment of the present invention.
Figure 3 is a perspective view showing the structure of a lens injection molded product supply unit constituting a lens gate cutting device according to an embodiment of the present invention.
Figure 4 is a perspective view showing the structure of the lower cutting part constituting the lens gate cutting device according to an embodiment of the present invention.
Figure 5 is a side view showing the operation of the working block driving part constituting the lower cutting part of the lens gate cutting device according to an embodiment of the present invention.
Figure 6 is a front view showing the structure of the upper cutting part constituting the lens gate cutting device according to an embodiment of the present invention.
Figure 7 is a perspective view showing the structure of a lens pickup unit constituting a lens gate cutting device according to an embodiment of the present invention.
Figure 8 is a perspective view showing the structure of a lens pickup unit constituting the lens pickup unit of the lens gate cutting device according to an embodiment of the present invention.
Figure 9 is an exploded perspective view showing the structure of a lens pickup unit constituting the lens pickup unit of the lens gate cutting device according to an embodiment of the present invention.
Figure 10 is a front view showing the operation of the lens pickup unit constituting the lens pickup unit of the lens gate cutting device according to an embodiment of the present invention.
Figure 11 is a plan view showing the structure of the lens injection product transfer unit constituting the lens gate cutting device according to an embodiment of the present invention.
Figure 12 is a perspective view showing the structure of the lens injection product transfer unit constituting the lens gate cutting device according to an embodiment of the present invention.
Figure 13 is a perspective view showing the structure of a lens pickup unit constituting the lens injection product transfer unit of the lens gate cutting device according to an embodiment of the present invention.
Figure 14 is a side view showing the operation of the lens injection product transfer unit constituting the lens gate cutting device according to an embodiment of the present invention.
Figure 15 is a plan view showing the structure of the lens gate cutting device according to an embodiment of the present invention when it includes a lens alignment unit.
Figure 16 is a perspective view showing the structure of a lens alignment part constituting a lens gate cutting device according to an embodiment of the present invention.
Figure 17 is a front view showing the structure of the lens alignment part constituting the lens gate cutting device according to an embodiment of the present invention.
Figure 18 is a plan view showing the operation of the lens alignment unit constituting the lens gate cutting device 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 lens gate cutting device according to an embodiment of the present invention.

FIG. 1 is a diagram showing an example of a lens injection molded product to which a lens gate cutting device according to an embodiment of the present invention is applied, and FIG. 2 is a plan view showing the structure of a lens gate cutting device according to an embodiment of the present invention.

As shown in FIG. 1, the lens injection products 10 and 20 are a plurality of lenses 11, runners 12 and 22, and a plurality of lenses 11 and runners 12 and 22, respectively. It may be composed of a plurality of gates 13. Accordingly, the plurality of lenses 11 can be separated from the lens injection molded product 20 by cutting the plurality of gates 13.

For convenience of explanation, the present invention will describe the lens injection-molded product by dividing it into a first lens injection-molded product 10 and a second lens injection-molded product 20 depending on whether a plurality of lenses 11 are connected. That is, as shown in (a) of FIG. 1, the first lens injection product 10 has a plurality of lenses 11 connected to the runner 12 by a plurality of gates 13, and (in FIG. 1) As shown in b), the second lens injection product 20 is composed of only the runner 22 with the plurality of lenses 11 separated.

Although not shown in detail, the lens injection molded products 10 and 20 may have first fixing protrusions 14 and 24 protruding at the top and second fixing protrusions 15 and 25 protruding at the bottom. The first fixing protrusions 14 and 24 are held by the lens injection product pickup unit 510, which will be described later, in the loading and unloading process of the lens injection products 10 and 20, and the gate 13 cutting process It is supported by the support block 310 of the upper cutting part 300, and the second fixing protrusions 15 and 25 allow the lens injection products 10 and 20 to be stably seated on the walking block 210, which will be described later. It can be inserted and coupled to the top of the working block 210.

Meanwhile, in the present invention, an injection-molded lens product 10 in which a plurality of lenses 11 are provided radially is described as an example, but the present invention is not limited thereto, and can also be applied to an injection-molded lens product of various shapes. However, for convenience of explanation, the present invention will be described by taking the lens gate cutting device 1 for the injection-molded lens product 10 with a plurality of lenses 11 radially provided as an example.

As shown in FIG. 2, the lens gate cutting device 1 according to an embodiment of the present invention includes a lens injection product supply unit 100, a lower cutting unit 200, an upper cutting unit 300, and a plurality of lens pickup units. It may be configured to include 400 and a lens injection product transfer unit 500. This lens gate cutting device 1 separates the plurality of lenses 11 by cutting the plurality of gates 13 from the first lens injection product 10, and then places the plurality of lenses 11 in a plurality of lens receiving trays ( 30) can be divided and loaded.

As shown in FIG. 2, the lens injection-molded product supply unit 100 supplies a plurality of first lens injection-molded products 10 to the lens injection-molded transport unit 500 and includes a supply block 110 and a supply block driver 120. It can be configured as follows.

Figure 3 is a perspective view showing the structure of a lens injection molded product supply unit constituting a lens gate cutting device according to an embodiment of the present invention.

As shown in FIG. 3, a plurality of first lens injection molded products 10 may be seated on the supply block 110. This supply block 110 may be composed of a plurality of jig blocks 111 that support each of the plurality of first lens injection molded products 10, and a jig fixing block 112 on which the plurality of jig blocks 111 are seated. . At this time, each jig block 111 may be provided with a plurality of guide pins 111a and 111b for supporting the plurality of runners 12 provided on the first lens injection molded product 10.

The supply block driver 120 is connected to the supply block 110 and can drive the supply block 110 on which the plurality of first lens injection molded products 10 are seated in a direction toward the lens injection molded product transfer unit 500. As shown in FIG. 3, the supply block drive unit 120 is coupled to 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 thread of the ball screw, so that the ball screw rotates horizontally. A linear motor system consisting of a slider that reciprocates in one direction and a guide rail (linear motion guide) that guides the movement of the slider can be used. At this time, the supply block 110 may be coupled to the slider and driven reciprocally by a drive motor.

Referring again to FIG. 2, the lower cutting unit 200 cuts the plurality of gates 13 in a state in which the first lens injection product 10 equipped with the plurality of lenses 11 is seated, and the lower cutting part 200 cuts the plurality of gates 13 It is provided for each lens injection molded product 10 and may be configured to include a working block 210, a plurality of lower cutters 220, a plurality of lower cutter fixing parts 230, and a working block driving unit 240.

Figure 4 is a perspective view showing the structure of the lower cutting part constituting the lens gate cutting device according to an embodiment of the present invention, and Figure 5 is a walking block constituting the lower cutting part of the lens gate cutting device according to an embodiment of the present invention. This is a side view showing the operation of the driving part.

As shown in FIG. 4, the first lens injection-molded product 10 is seated on the working block 210, and the plurality of lower cutters 220 are in a state where the first lens injection-molded product 10 is seated on the working block 210. is disposed at a position corresponding to each of the plurality of gates 13 to simultaneously cut each of the plurality of gates 13 together with the plurality of upper cutters 320, and the plurality of lower cutter fixing parts 230 are connected to the plurality of lower cutters 320. (220) Each can be fixed.

As shown in FIGS. 1 and 4, in the case of the lens injection molded product 20 in which a plurality of lenses 11 are radially provided, the walking block 210 is disposed in the center so that the central portion of the runner 22 is seated. , the plurality of lower cutters 220 and the plurality of lower cutter fixing parts 230 may be radially arranged to surround the working block 210.

In addition, the working block driving unit 240 is connected to the working block 210 and can reciprocate the working block 210 and the plurality of lower cutter fixing units 230 in the horizontal direction. Although not shown in detail, the plurality of lower cutter fixing units 230 may be fixedly coupled to the working block 210 or to the working block driving unit 240.

As shown in FIG. 4, the working block driver 240 may use a linear motor system with a structure similar to the supply block driver 120 shown in FIG. 3. At this time, the working block 210 and the plurality of lower cutter fixing units 230 may be coupled to the slider provided in the working block driving unit 240 by the fixing plate 241.

In addition, as shown in FIGS. 2 and 5, the working block driving unit 240 moves the working block 210 and the plurality of lower cutter fixing units 230 between the lens injection product transfer unit 500 and the upper cutting unit 300. It can be operated reciprocally.

Preferably, the working block driving unit 240 is positioned at a first position (I) where the working block 210 is adjacent to the lens injection product transfer unit 500, a second position (II) adjacent to the plurality of upper cutters 320, and a first The working block 210 can be moved to sequentially move the third position (III) between the position (I) and the second position (II).

As shown in FIG. 5, the first position (I) is when the first lens injection-molded product 10 is loaded into the walking block 210 or the second lens injection-molded product 20 is unloaded from the walking block 210. (Unloading) position, and the second position (II) is where the plurality of gates 13 provided in the first lens injection molded product 10 are cut by the upper cutting part 300 and the lower cutting part 200. It means a position, and the third position (III) means a position where the plurality of lenses 11 are picked up by the plurality of lens pickup units 410. Therefore, the working block driver 240 sequentially moves the working block 210 to the first position (I), the second position (II), the third position (III), and then back to the first position (I). You can.

Referring again to FIG. 2, the upper cutting unit 300 cuts the plurality of gates 13 together with the lower cutting unit 200 while the first lens injection product 10 is seated on the working block 210. , disposed on each of the plurality of lower cutting units 200, and includes a support block 310, a plurality of upper cutters 320, a plurality of upper cutter fixing parts 330, and a support block driving unit 340. It can be.

Figure 6 is a front view showing the structure of the upper cutting part constituting the lens gate cutting device according to an embodiment of the present invention.

As shown in FIG. 6, the support block 310 supports the upper end of the first lens injection molded product 10 seated on the walking block 210, and the plurality of upper cutters 320 each of the plurality of gates 13 is disposed at a position corresponding to the plurality of lower cutters 220 and each of the plurality of gates 13 at the same time, and the plurality of upper cutter fixing parts 330 can fix each of the plurality of upper cutters 320. there is.

As shown in FIGS. 1 and 6, in the case of the lens injection molded product 20 in which a plurality of lenses 11 are radially provided, the support block 310 is disposed in the center to support the central portion of the runner 22. , the plurality of upper cutters 320 and the plurality of upper cutter fixing parts 330 may be radially arranged to surround the support block 310. Although not shown, the plurality of upper cutter fixing parts 330 may be configured to provide a buffering force when the plurality of upper cutters 320 simultaneously cut each of the plurality of gates 13.

In addition, the support block driving unit 340 is connected to the support block 310 and can reciprocate the support block 310 and the plurality of upper cutter fixing parts 330 in the vertical direction.

As shown in FIG. 6, the support block drive unit 340 is coupled to 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 thread of the ball screw, so that it moves vertically when the ball screw rotates. It may be composed of a nut member that reciprocates in the direction and a drive block that is provided on the other end of the ball screw and contacts or releases contact with the top of the support block 310 to reciprocate the support block 310 in the vertical direction.

Referring again to FIG. 2, the lens pickup unit 400 picks up a plurality of lenses 11 separated from the first lens injection molded product 10 and loads them into the plurality of lens receiving trays 30. It is provided in each of the lens injection molded products 10 and may be configured to include a lens pickup unit 410 and a lens pickup unit driver 420.

FIG. 7 is a perspective view showing the structure of a lens pickup unit constituting a lens gate cutting device according to an embodiment of the present invention, and FIG. 8 is a lens pickup constituting a lens pickup unit of the lens gate cutting device according to an embodiment of the present invention. It is a perspective view showing the structure of the unit, and Figure 9 is an exploded perspective view showing the structure of the lens pickup unit constituting the lens pickup part of the lens gate cutting device according to an embodiment of the present invention, and Figure 10 is an exploded perspective view showing the structure of the lens pickup unit of the lens gate cutting device according to an embodiment of the present invention. This is a front view showing the operation of the lens pickup unit that constitutes the lens pickup part of the lens gate cutting device.

As shown in FIG. 7, the lens pickup unit 410 picks up a plurality of lenses 11 separated from the first lens injection product 10 by the upper cutting part 300 and the lower cutting part 200. , each of the plurality of lenses 11 can be individually loaded on the plurality of lens receiving trays 30.

As shown in FIGS. 8 to 10, the lens pickup unit 410 may be configured to include a plurality of vacuum adsorption units 411, a first vacuum adsorption driving unit 412, and a second vacuum adsorption driving unit 413. there is.

The plurality of vacuum adsorption units 411 are installed to reciprocate in the vertical direction and can simultaneously vacuum adsorb the plurality of lenses 11 separated from the first lens injection molded product 10. As shown in FIGS. 1 and 9, in the case of a lens injection product 20 in which a plurality of lenses 11 are provided radially, a plurality of vacuum adsorption units 411 may be arranged radially on an arc of a certain radius. there is.

The first vacuum adsorption driving unit 412 is disposed on the upper part of the plurality of vacuum adsorption units 411 and can individually reciprocate each of the plurality of vacuum adsorption units 411. As shown in FIGS. 9 and 10, the first vacuum adsorption driving unit 412 moves the driving member 412a up and down and a driving member 412a that contacts or releases the upper end of each of the plurality of vacuum adsorption units 411. It may be composed of a driving cylinder 412b that drives it.

The second vacuum adsorption driving unit 413 is connected to the first vacuum adsorption driving unit 412, and the first vacuum adsorption driving unit 412 sequentially reciprocates each of the plurality of vacuum adsorption units 411. The driving unit 412 can be driven. That is, the second vacuum suction driving unit 413 can drive the first vacuum suction driving unit 412 to sequentially move to the top of each of the plurality of vacuum suction units 411. As shown in FIGS. 1 and 9, in the case of the lens injection product 20 in which a plurality of lenses 11 are provided radially, the second vacuum adsorption driving unit 413 moves the first vacuum adsorption driving unit 412 at a certain radius. A stepping motor that provides rotational driving force can be used to move to the top of the plurality of vacuum adsorption units 411 arranged on the arc of .

Therefore, the plurality of vacuum adsorption units 411 pick up the plurality of lenses 11 separated from the first lens injection molded product 10 by the operation of the first vacuum adsorption driving unit 412 and the second vacuum adsorption driving unit 413. When loading each lens 11, they can be operated simultaneously, and when loading each of the plurality of lenses 11 on the plurality of lens receiving trays 30, they can be operated individually and sequentially.

Meanwhile, as shown in FIG. 8, the plurality of vacuum adsorption units 411 and the second vacuum adsorption driving unit 413 include the first fixed block 415a, the second fixed block 415b, and the plurality of fixed shafts 415c. ) can be installed on the lens pickup unit body portion 415 composed of. That is, as shown in FIGS. 8 and 9, each of the plurality of vacuum adsorption units 411 is vertically aligned in each of the plurality of guide grooves 414a formed in the guide block 414 installed on the first fixing block 415a. It is installed to be movable back and forth, and the second vacuum suction drive unit 413 may be installed on the second fixed block 415b.

Meanwhile, as shown in FIG. 9, each vacuum suction unit 411 may include a vacuum suction head 411a, a drive shaft 411b, and an elastic member 411c.

The vacuum suction head 411a can vacuum suction the upper surface of the lens 11 by vacuum pressure supplied from an external vacuum pump (not shown). One end of the drive shaft 411b is coupled to the vacuum suction head 411a, the other end is disposed in the vertical direction toward the first vacuum suction driver 412, and is moved in the vertical direction by the first vacuum suction driver 412. It can be reciprocated.

This drive shaft 411b is guided to move up and down by the guide groove 414a formed in the guide block 414 and the through hole h formed in the first fixed block 415a, and the vertical movement of the first fixed block 415a A buffering force and a return force returning upward can be provided by the elastic member 411c installed inside the through hole (h).

Preferably, the vacuum suction head 411a may be detachably coupled to one end of the drive shaft 411b. As shown in Figure 9, the vacuum suction head 411a can be coupled to one end of the drive shaft 411b by a fastening member 411d with a plurality of ball plungers installed along the circumference of the inner peripheral surface. . Accordingly, the vacuum suction head 411a has the advantage that not only can it be easily assembled and disassembled from one end of the drive shaft 411b, but also its concentricity with the drive shaft 411b can be easily adjusted during the assembly process.

Referring again to FIG. 2 , the lens pickup unit driving unit 420 may drive the lens pickup unit 410 between the walking block 210 and the plurality of lens accommodating trays 30 . This lens pickup unit driver 420 can move the lens pickup unit 410 in the horizontal and vertical directions by linearly driving the lens pickup unit 410 in the X-axis, Y-axis, and Z-axis directions. In particular, the lens pickup unit driver 420 may drive the lens pickup unit 410 to rotate around the Z axis on the XY plane. Accordingly, the lens pickup unit 410 can rotate lenses of various shapes, such as circular lenses as well as square lenses, in a desired direction and accurately load them into the loading groove (not shown) formed in the lens receiving tray 30.

Preferably, as shown in FIG. 7, the lens pickup unit driver 420 may use a 4-axis driven scalar robot. That is, the lens pickup unit driver 420 can use a scalar robot that is composed of a plurality of arms and is capable of driving control in the X-axis, Y-axis, and Z-axis directions as well as angle (θ) control.

In general, the lens pickup unit driver 420 drives the lens pickup unit 410 linearly in the X-, Y-, and Z-axis directions, and three linear motors are used to rotate the lens pickup unit 410 around the Z-axis. A rotation motor is used with the system positioned in the X-, Y-, and Z-axis directions. However, this structure is not only complex and takes up a lot of space, but also the three linear motor systems have a large deviation in the center of gravity, causing shaking and distortion during the driving process of the lens pickup unit 410, which causes lens 11 ) There was a problem that repeatability and precision deteriorated during the pick-up and loading process. Additionally, this structure had the problem that control of the three linear motors and rotary motors was difficult and time-consuming.

However, when using a 4-axis driven scalar robot as the lens pickup unit driver 420, not only is it easier to control the lens pickup unit 410 with a simpler structure, but the lens pickup unit 410 is also made more stable. There is an advantage in that it can be driven and the repeatability and precision of the lens pickup unit 410 can be improved.

Referring again to FIG. 2, the lens injection product transfer unit 500 supplies the first lens injection product 10 to the lower cutting unit 200 or extracts the second lens injection product 20 from the lower cutting unit 200 to the outside. You can.

That is, as shown in FIG. 2, the lens injection-molded material transfer unit 500 is disposed adjacent to the lens injection-molded material supply unit 100 and the plurality of lower cutting parts 200, and the plurality of lens injection-molded material supply units 100 supplied from the lens injection-molded material supply unit 100 Each of the first lens injection-molded products 10 is loaded into the working block 210 provided in each of the plurality of lower cutting parts 200, or a plurality of lenses 11 are formed from each of the plurality of first lens injection-molded products 10. Each of the plurality of separated second lens injection molded products 20 can be unloaded to the outside from the working block 210 provided in each of the plurality of lower cutting parts.

FIG. 11 is a plan view showing the structure of the lens injection product transfer unit constituting the lens gate cutting device according to an embodiment of the present invention, and FIG. 12 is a plan view showing the structure of the lens injection product transfer unit constituting the lens gate cutting device according to an embodiment of the present invention. It is a perspective view showing the structure, and FIG. 13 is a perspective view showing the structure of the lens pickup unit constituting the lens injection material transport part of the lens gate cutting device according to an embodiment of the present invention, and FIG. 14 is a lens according to an embodiment of the present invention. This is a side view showing the operation of the lens injection material transfer unit that constitutes the gate cutting device.

As shown in FIGS. 11 to 13, the lens injection product transport unit 500 may include a lens injection product pickup unit 510, a lens injection product pickup unit driving unit 520, and a lens injection product discharge unit 530.

The lens injection-molded product pickup unit 510 is provided for each of the plurality of first lens injection-molded products 10, and receives the first lens injection-molded product 10 from the outside through the working block 210 provided in each of the plurality of lower cutting parts 200. The second lens injection molded product 20 from which the plurality of lenses 11 are separated can be loaded or unloaded from the working block 210 to the outside.

As shown in FIG. 13, each lens injection product pickup unit 510 grips the first fixing protrusions 14 and 24 provided on the top of the first lens injection product 10 and the second lens injection product 20. A pair of grippers 511 and 412 for releasing the grip, a gripper drive unit 512 and 422 for driving the pair of grippers 511 and 412, and a cylinder 513 and 423 that drives the gripper drive units 512 and 422 in the up and down directions. ) may be configured to include.

The lens injection product pickup unit driving unit 520 can drive the lens injection product pickup unit 510 between the lens injection product supply unit 100 and the working block 210, and between the working block 210 and the lens injection product discharge unit 530. there is. As shown in FIG. 11, the lens injection product pickup unit driver 520 may use a linear motor system with a structure similar to the walking block driver 240 shown in FIG. 4.

Meanwhile, as shown in FIGS. 2, 11, and 12, a plurality of lower cutting parts 200 and a plurality of upper cutting parts 300 constituting the lens gate cutting device 1 according to an embodiment of the present invention. ) and a plurality of lens pickup units 400 are provided for each of the plurality of first lens injection-molded products 10, and can be divided and arranged on both sides of the lens injection-molded product transport unit 500 with the lens injection-molded product transport unit 500 in between. there is.

In particular, preferably, the lens injection product pickup unit driving unit 520 of the lens injection product transfer unit 500 is oriented in a direction toward the lower cutting unit 200, the upper cutting unit 300, and the lens pickup unit 400 disposed on both sides. A pair can be placed as

In the present invention, four lower cutting parts (200A to 200D), four upper cutting parts (300A to 300D), and four lens pickup parts (400A to 400D) are provided for the four first lens injection products 10, The lens injection product transport unit 500 will be described by taking an example in which four lens injection product pickup units 510A to 510D are provided.

Therefore, as shown in FIGS. 11 and 12, the lens injection product transport unit 500 is disposed long along the central portion adjacent to the lens injection product supply unit 100, and provides lenses for each of the four first lens injection products 10A to 10D. There are two lower cutting units (200A to 200D), upper cutting units (300A to 300D), lens pickup units (400A to 400D), and lens injection product pickup units (510A to 510D) to perform the gate cutting process. It is disposed on both sides of 100, and a pair of lens injection product pickup unit driving units 520A and 520B can respectively drive two lens injection product pickup units 510A and 510B, 510C and 510D.

That is, as shown in FIGS. 11 and 14, the lens injection product pickup unit driver 520B drives the two lens injection product pickup units 510C and 510D, and the two lens injection product pickup units 510C and 510D are respectively Among the four first lens injection-molded products 10A to 10D supplied from the lens injection-molded product supply unit 100, two first lens injection-molded products 10C and 10D are placed in each of the two lower cutting parts 200C and 200D. Loading into a block (see (a) in Figure 14) or receiving the second lens injection molded product (20C, 20D) from the working block provided in each of the two lower cutting parts (200C, 200D) to the lens injection molded product discharge section Unloading can be done externally through 530 (see (b) of FIG. 14).

Meanwhile, the lens gate cutting device 1 according to an embodiment of the present invention divides and loads a plurality of lenses 11 separated from each of the plurality of first lens injection products 10 into a plurality of lens receiving trays 30. It may further include a plurality of lens alignment units 600 for aligning the plurality of lenses 11.

FIG. 15 is a plan view showing the structure of the lens gate cutting device according to an embodiment of the present invention when it includes a lens alignment unit, and FIG. 16 is a plan view of the lens alignment unit constituting the lens gate cutting device according to an embodiment of the present invention. It is a perspective view showing the structure, and Figure 17 is a front view showing the structure of the lens alignment part constituting the lens gate cutting device according to an embodiment of the present invention, and Figure 18 is a front view showing the structure of the lens gate cutting device according to an embodiment of the present invention. This is a top view showing the operation of the lens alignment unit.

As shown in FIG. 15, the lens alignment unit 600 is provided for each of the plurality of first lens injection products 10, and is disposed between the lower cutting unit 200 and the lens receiving tray 30 to provide lower cutting. The plurality of lenses 11 separated from the first lens injection molded product 10 can be aligned by the unit 200 and the upper cutting unit 300.

As shown in FIGS. 16 and 17 , the lens alignment unit 600 may include a lens alignment block 610, a lens transfer unit 620, and a lens alignment driver 630.

In the lens alignment block 610, a plurality of lenses 11 separated from the first lens injection molded product 10 may be seated and aligned. This lens alignment block 6010 includes a plurality of lens accommodating blocks 611 having grooves (not shown) in which each of the plurality of lenses 11 is seated, and a lens accommodating block 611 in which the plurality of lens accommodating blocks 611 are seated. It may consist of a block 612.

The lens transfer unit 620 may pick up a plurality of lenses 11 from the walking block 210 and seat them on the lens alignment block 610. As shown in FIGS. 16 and 17 , the lens transfer unit 620 may include a lens transfer arm 621, a first transfer arm driver 622, and a second transfer arm driver 623.

The lens transfer arm 621 has a plurality of vacuum adsorption members 621a for vacuum adsorbing a plurality of lenses 11 at one end, and a plurality of vacuum adsorption members 621a at the other end to absorb a plurality of lenses 11 from the walking block 210. It can be installed adjacent to the working block driving unit 240 so that the lens 11 can be vacuum-adsorbed and seated on the lens alignment block 610. The first transfer arm driver 622 and the second transfer arm driver 623 may drive the lens transfer arm 621 between the walking block 210 and the lens alignment block 610.

Preferably, the other end of the lens transfer arm 621 is rotatably installed at a position adjacent to the working block driving unit 240, and the first transfer arm driving unit 622 is connected to the other end of the lens transfer arm 621 to provide a lens Rotational driving force is provided to the other end of the transfer arm 621, and the second transfer arm driving unit 623 is connected to the other end of the lens transfer arm 621 or the other end of the first transfer arm driving unit 622 to form the lens transfer arm 621. ) can provide a reciprocating driving force in the up and down direction to the other end.

The lens alignment driver 630 is connected to the lens alignment block 610 and can reciprocate the lens alignment block 610 on which the plurality of first lenses 11 are mounted in the horizontal direction. As shown in FIG. 16, the lens alignment driver 630 may use a linear motor system with a structure similar to the supply block driver 120 shown in FIG. 3. At this time, the lens alignment block 610 may be coupled to the slider provided in the lens alignment driving unit 630 by the lens accommodating fixing block 612.

FIG. 18 shows the operation of the lens alignment unit 600 that aligns the plurality of lenses 11 before loading them into the plurality of lens receiving trays 30.

First, as shown in (a) of FIG. 18, after the plurality of lenses 11 are separated from the first lens injection product 10 by the upper cutting part 300 and the lower cutting part 200, the walking block The driving unit 240 transfers the walking block 210 from the second position (II) to the third position (III), and the first transfer arm driving unit 622 and the second transfer arm driving unit 623 operate the lens transfer arm ( The plurality of lenses 11 mounted on the walking block 210 can be vacuum-adsorbed by the plurality of vacuum suction members 621a by rotating and driving the 621 up and down.

And, as shown in (b) of FIG. 18, the first transfer arm driver 622 and the second transfer arm driver 623 rotate and drive the lens transfer arm 621 up and down to operate a plurality of vacuum suction members ( The plurality of lenses 11 vacuum-adsorbed by 621a) can be seated on the lens alignment block 610.

Finally, as shown in (c) of FIG. 18, the lens alignment driving unit 630 connects the lens alignment block 610 to the lens pickup unit 410 and the lens receiving tray 30 of the lens pickup unit 400. After being transferred to an adjacent location, the lens pickup unit 410 can simultaneously pick up the plurality of lenses 11 aligned by the lens alignment block 610 and load them separately on the plurality of lens receiving trays 30. At this time, the working block driving unit 240 moves the working block 210 from the third position (III) to the first position in order to discharge the plurality of second lens injection products 20 from which the plurality of lenses 11 are separated to the outside. It can be transferred to (Ⅰ).

In this way, the lens gate cutting device 1 according to an embodiment of the present invention includes a plurality of lower cutting parts 200, a plurality of upper cutting parts 300, and a plurality of plurality of lens injection products 10, respectively. A lens injection product including a lens pickup unit 400 and loading or unloading the lens injection product 10 using a plurality of lower cutting units 200, a plurality of upper cutting units 300, and a plurality of lens pickup units 400. By distributing them on both sides with the transfer unit 500 in between, the lens gate cutting process for a plurality of lens injection molded products 10 can be performed simultaneously to shorten the overall lens gate cutting process time, thereby improving the productivity and productivity of the lens gate cutting process. Efficiency can be improved.

In addition, the lens gate cutting device 1 according to an embodiment of the present invention is configured so that the lens pickup unit 410 simultaneously picks up a plurality of lenses 11 and individually releases each lens 11. , not only can the lens 11 pickup process be performed more quickly, but also the lens 11 loading process can be performed more accurately.

In addition, in the lens gate cutting device 1 according to an embodiment of the present invention, the lens pickup unit driving unit 420 not only drives the lens pickup unit 410 linearly in the X-axis, Y-axis, and Z-axis directions, By rotating and driving around the Z axis, the lens 11 loading process can be performed more quickly and accurately for lenses 11 of various shapes.

In addition, the lens gate cutting device 1 according to an embodiment of the present invention can drive the lens pickup unit 410 more stably by using a scalar robot as the lens pickup unit driving unit 420. In addition, the repeatability and precision of the lens pickup unit 410 can be improved.

Meanwhile, in the present invention, as an example of the lens gate cutting device 1, the lens gate cutting device 1 applied to the lens injection molded products 10 and 20 in which a plurality of lenses 11 are radially provided is described as an example. , but is not limited thereto, and the present invention can also be applied to lens injection molded products 10 and 20 having various arrangements and shapes.

In addition, in the present invention, the lens gate cutting device 1 applied to the circular lens 11 is described as an example of the lens gate cutting device 1, but it is not limited thereto, and the present invention covers lenses of various shapes. It can also be applied.

Meanwhile, the specification and drawings disclose preferred embodiments of the present invention, and although specific terms are used, they are used 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: Lens gate cutting device
10, 20: first lens injection product, second lens injection product
11: Lens 12, 22: Runner
13: gate 14, 24: first fixing protrusion
15, 25: second fixing protrusion 30: lens accommodating tray
100: Lens injection product supply unit 110: Supply block
120: supply block driving unit 200: lower cutting unit
210: walking block 220: lower cutter
230: Lower cutter fixing part 240: Working block driving part
300: upper cutting part 310: support block
320: upper cutter 330: upper cutter fixing part
340: Support block driving unit 400: Lens pickup unit
410: Lens pickup unit 420: Lens pickup unit driving unit
500: Lens injection product transfer unit 510: Lens injection product pickup unit
520: Lens injection product pickup unit driving unit 530: Lens injection product discharge unit
600: Lens alignment unit 610: Lens alignment block
620: Lens transfer unit 630: Lens alignment block driving unit

Claims (10)

a lens injection-molded product supply unit that supplies a plurality of first lens injection-molded products equipped with a plurality of lenses;
A plurality of lower cutting parts and a plurality of upper cutting parts provided for each of the plurality of first lens injection-molded products, for cutting a plurality of gates provided in each of the plurality of first lens injection-molded products;
a plurality of lens pickup units provided for each of the plurality of lower cutting units, and configured to pick up the plurality of lenses separated from each of the plurality of first lens injection moldings and place them on a plurality of lens receiving trays; and
It is disposed at a position adjacent to the lens injection-molded material supply unit and the plurality of lower cutting parts, and loads each of the plurality of first lens injection-molded products supplied from the lens injection-molded material supply unit into each of the plurality of lower cutting parts or the plurality of lower cutting parts. Unloading each of the plurality of second lens injection-molded products, in which the plurality of lenses are separated from each of the first lens injection-molded products, from each of the plurality of lower cutting units to the outside, includes a lens injection product transfer unit,
The plurality of lower cutting units, the plurality of upper cutting units, and the plurality of lens pickup units,
Divided and disposed on both sides of the lens injection-molded material transport unit with the lens injection-molded transport unit in between,
Each of the plurality of lower cutting parts,
A walking block on which the first lens injection-molded product is mounted, a plurality of lower cutters for cutting each of the plurality of gates provided in the first lens injection-molded product, a plurality of lower cutter fixing units for fixing each of the plurality of lower cutters, and the walking It includes a working block driving unit that reciprocates the block and the plurality of lower cutter fixing units in the horizontal direction,
Each of the plurality of upper cutting parts,
A support block for supporting the first lens injection product seated on the walking block, a plurality of upper cutters for cutting each of the plurality of gates together with each of the plurality of lower cutters, and a plurality of upper cutters for fixing each of the plurality of upper cutters. It includes a support block driving unit that reciprocates the fixing unit, the support block, and the plurality of upper cutter fixing units in an upward and downward direction,
Each of the plurality of lens pickup units,
Lens gate cutting comprising a lens pickup unit that simultaneously picks up the plurality of lenses separated from the first lens injection molding product and loads them into the plurality of lens receiving trays, and a lens pickup unit driving unit that drives the lens pickup unit. Device. delete According to claim 1,
The working block driving unit,
Transferring the walking block so that the walking block sequentially moves to a first position adjacent to the lens injection product transfer unit, a second position adjacent to the plurality of upper cutters, and a third position between the first position and the second position. Lens gate cutting device characterized in that. According to claim 1,
The lens pickup unit,
A plurality of vacuum adsorption units installed to reciprocate in the vertical direction and vacuum adsorbing the plurality of lenses;
a first vacuum adsorption driving unit disposed on an upper portion of the plurality of vacuum adsorption units and individually reciprocating each of the plurality of vacuum adsorption units; and
It is connected to the first vacuum adsorption driving unit, and includes a second vacuum adsorption driving unit that drives the first vacuum adsorption driving unit so that the first vacuum adsorption driving unit sequentially reciprocates each of the plurality of vacuum adsorption units. Lens gate cutting device. According to claim 1,
The lens pickup unit driving unit,
A lens gate cutting device characterized in that the lens pickup unit is driven in the X-axis, Y-axis, and Z-axis directions, and the lens pickup unit is rotated around the Z-axis on the XY plane. According to claim 5,
The lens pickup unit driving unit,
A lens gate cutting device characterized by being a 4-axis driven scalar robot. According to claim 1,
The lens injection product transfer unit,
It is provided for each of the plurality of first lens injection-molded products, and loads each of the plurality of first lens injection-molded products into a working block provided in each of the plurality of lower cutting parts or each of the plurality of second lens injection-molded products to the working block. Unloading to the outside from the working blocks provided in each of the plurality of lower cutting parts includes a plurality of lens injection molded product pickup units; and
A lens gate cutting device comprising a pair of lens injection-molded product pickup unit driving units that drive the plurality of lens injection-molded product pickup units between the lens injection-molded product supply unit and each of the plurality of lower cutting units. According to claim 7,
Each of the plurality of lens injection product pickup units,
a pair of grippers that grip or release first fixing protrusions provided on top of the first and second lens extrusions; and
A lens gate cutting device comprising a gripper driving unit that drives the pair of grippers. According to claim 1,
The lens gate cutting device,
The plurality of lenses are disposed between the plurality of lower cutting parts and the plurality of lens receiving trays, and are separated from each of the plurality of first lens injection moldings by the plurality of lower cutting parts and the plurality of upper cutting parts. A lens gate cutting device further comprising a plurality of lens alignment units for aligning. According to clause 9,
Each of the plurality of lens alignment units,
A lens alignment block on which the plurality of lenses separated from the first lens injection product are seated and aligned, a lens transfer unit that picks up the plurality of lenses from the walking block and places them on the lens alignment block, and moves the lens alignment block in a horizontal direction. It includes a lens alignment block driving unit that reciprocates,
The lens pickup unit is,
A lens gate cutting device, characterized in that it simultaneously picks up the plurality of lenses aligned by the lens alignment block and divides them into the plurality of lens receiving trays.

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