KR101848990B1

KR101848990B1 - The printing device

Info

Publication number: KR101848990B1
Application number: KR1020160022719A
Authority: KR
Inventors: 정철현
Original assignee: 정철현
Priority date: 2016-02-25
Filing date: 2016-02-25
Publication date: 2018-05-28
Also published as: KR20170100308A

Abstract

An embodiment according to the present invention includes a frame, a conveying portion disposed in the frame, a fixing portion disposed adjacent to the conveying portion, and a printing portion disposed on the conveying portion. Here, the conveying unit includes a first conveying belt and a second conveying belt disposed substantially parallel to each other, a partition disposed between the first conveying belt and the second conveying belt, a belt driving unit for driving the first and second conveying belts, .

Description

PRINTING DEVICE

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing apparatus, and more particularly, to a printing apparatus capable of simultaneously printing a predetermined pattern on a plurality of molds.

Unlike glasses, contact lenses are in contact with the cornea of the eye. Contact lenses correct the visual acuity by refracting light in contact with the cornea. The contact lens does not protrude to the outside like a pair of glasses, thereby improving the activity of the wearer. In addition, contact lenses implement color and design, increasing the aesthetic effect.

In order to implement a color or design on a contact lens, a predetermined pattern must be printed on the lens. A predetermined pattern is printed on a mold using a printing apparatus, and then a lens having a predetermined pattern can be produced by producing a lens using a mold. Therefore, in order to increase the production amount of the lens or to print various patterns, the structure of the printing apparatus is important.

An embodiment of the present invention is to provide a printing apparatus capable of simultaneously printing a predetermined pattern on a plurality of molds.

One embodiment of the printing apparatus according to the present invention is a printing apparatus comprising a frame, a conveying unit disposed in the frame for conveying a mold, at least one printing unit disposed on the conveying unit, for printing a predetermined pattern on the mold, And at least one fixing part disposed adjacent to the transfer part and fixing the mold transferred from one side of the transfer part to the lower part of the printing part, the transfer part including a first transfer belt extending from one side of the frame to the other side, A second conveyance belt disposed substantially parallel to the first conveyance belt, a partition disposed between the first conveyance belt and the second conveyance belt, a belt for driving the first conveyance belt and the second conveyance belt, And a drive unit.

The partition walls are spaced apart from each other along the first conveyance belt in correspondence to the fixing portions.

The apparatus may further include a vertical driving unit for vertically moving the partition.

The barrier ribs may include first barrier ribs arranged in one direction in a cross section, and second barrier ribs protruded from the first barrier ribs.

The fixing unit may include a first fixing unit and a second fixing unit disposed opposite to each other with the transfer unit interposed therebetween.

The second partition may have a first groove disposed in a region facing the first fixing portion and the second fixing portion.

The second partition may include an inclined portion gradually protruding from the first groove along the first partition, and a horizontal portion extending from the inclined portion along the first partition.

At least one of the first fixing portion and the second fixing portion may include a supporting plate having a second groove into which at least a part of the mold is inserted, and a driving cylinder connected to the supporting plate.

Further, the support plate is linearly moved by the drive cylinder.

The partition wall has a through hole through which at least a part of the support plate is inserted.

The fixing unit and the printing unit may be disposed along the conveyance unit.

In addition, the printing unit may include a printing pad for printing the predetermined pattern, and a third cylinder for moving the pad unit in a first direction.

According to an embodiment of the present invention, a predetermined pattern can be simultaneously printed on a plurality of molds fed in parallel by the first conveyance belt and the second conveyance belt.

In addition, a plurality of printing units are arranged in a line on the conveying unit. Further, the plurality of fixing portions are disposed at the lower portion of each printing portion along the conveying portion. Thus, a plurality of different patterns can be successively printed on one mold.

1 is a perspective view illustrating a printing apparatus according to an exemplary embodiment of the present invention.
Fig. 2 is a perspective view showing the arrangement of the conveying portion and the fixing portion shown in Fig. 1;
Fig. 3 is a perspective view showing the conveying portion and the partition shown in Fig. 2. Fig.
Fig. 4 is a perspective view showing the conveyance unit shown in Fig. 3; Fig.
5 is a perspective view showing the partition shown in Fig.
6 is a cross-sectional view taken along line I-I 'in Fig.
7 is a plan view of the partition shown in Fig.
8 is a perspective view showing another embodiment of the partition shown in Fig.
Fig. 9 is a view showing the vertical drive unit according to Fig. 8. Fig.
10 is an enlarged view of the conveyance portion and the fixing portion shown in Fig.
11 is a plan view showing a state where the mold is fixed by the fixing portion shown in Fig.
12 is a perspective view showing the printing unit shown in FIG.
13 is a front view showing the printing unit shown in Fig.

Hereinafter, the present invention will be described in detail with reference to embodiments. However, the scope of the present invention is not limited by the drawings or embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are merely exemplary and illustrative of various embodiments of the invention.

In order to facilitate the understanding of the invention, each component and its shape or the like in the drawing may be briefly drawn or exaggerated, and components in an actual product may be omitted without being represented. Accordingly, the drawings are to be construed as illustrative of the invention. In the drawings, the same elements are denoted by the same reference numerals.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "electrically connected" with another part in between . Also, when an element is referred to as "comprising ", it means that it can include other elements as well, without departing from the other elements unless specifically stated otherwise.

The terms first, second, third, etc. in this specification may be used to describe various components, but such components are not limited by these terms. The terms are used for the purpose of distinguishing one element from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second or third component, and similarly, the second or third component may be alternately named.

It is also to be understood that where a layer or element is referred to as being "on the surface" of another layer or element, it is to be understood that not only is the layer or element disposed in direct contact with the other layer or element, To the case where the third layer is disposed interposed between the first and second layers.

Hereinafter, a printing apparatus 10 according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a printing apparatus 10 according to an embodiment of the present invention, and FIG. 2 is a perspective view showing an arrangement of a conveyance unit 200 and a fixing unit 300 shown in FIG.

1 and 2, a printing apparatus 10 according to an embodiment of the present invention includes a frame 100, a conveying unit 200 disposed in the frame 100, a fixing unit 200 disposed adjacent to the conveying unit 200, (300), and a printing unit (400) disposed on an upper portion of the transfer unit (200).

The frame 100 may include a vertical frame 110 and a horizontal frame 130. The horizontal frame 130 is disposed substantially parallel to the horizontal plane and the vertical frame 110 is disposed substantially perpendicular to the horizontal frame 130.

The vertical frame 110 and the horizontal frame 130 may be arranged in a plurality. In addition, the vertical frame 110 and the horizontal frame 130 may have a shape of at least one of a bar, a stick, and a plate.

The transfer unit 200 is disposed in the frame 100. For example, the transfer unit 200 may be disposed from one side of the horizontal frame 130 toward the other side. The conveyance unit 200 may include a first conveyance belt 210, a second conveyance belt 230, a partition 250, and a belt drive unit 270. The transfer unit 200 may further include a transfer unit housing 220.

The first conveyance belt 210 is disposed to extend from one side of the frame 100 to the other side. In addition, the second conveyance belt 230 is disposed substantially parallel to the first conveyance belt 210. The first and second conveyance belts 210 and 230 are driven by a belt drive unit 270. The first and second conveyance belts 210 and 230 are connected to the mold supply unit 500. The mold supply unit 500 may include a first index 510 and a second index 530. For example, the first index 510 is connected to the first conveyance belt 210. Further, the second index 530 is connected to the second conveyance belt 230. Accordingly, the first conveyance belt 210 conveys the mold 150, which will be described later, supplied from the first index 510. Further, the second conveyance belt 230 conveys the mold 150 to be described later supplied from the second index 530.

FIG. 3 is a perspective view showing the conveyance unit 200 and the partition 250 shown in FIG. 2, and FIG. 4 is a perspective view showing the conveyance unit 200 shown in FIG.

3 and 4, the belt drive unit 270 includes a drive pulley 271, a driven pulley 273, a first auxiliary pulley 272, a second auxiliary pulley 274 and a motor 275 . The drive pulley 271 is disposed on the frame 100. The driven pulley 273 is disposed on the frame 100, away from the drive pulley 271. The first conveyance belt 210 and the second conveyance belt 230 connect the drive pulley 271 and the driven pulley 273. The first auxiliary pulley 272 is connected to the drive pulley 271. For example, the first auxiliary pulley 272 may be axially connected to the drive pulley 271. Therefore, the first auxiliary pulley 272 and the drive pulley 271 can be arranged on the same axis line.

The motor 275 may be disposed below the drive pulley 271. The second auxiliary pulley 274 is connected to the motor 275. For example, the second auxiliary pulley 274 may be axially connected to the motor 275. Therefore, the second auxiliary pulley 274 and the motor 275 can be arranged on the same axis line. In other words, the first auxiliary pulley 272 and the second auxiliary pulley 274 can be disposed up and down. The auxiliary belt (not shown) connects the first auxiliary pulley 272 and the second auxiliary pulley 274.

The second auxiliary pulley 274 is rotated by the motor 275. As the second auxiliary pulley 274 rotates, the first auxiliary pulley 272 rotates. Since the driving pulley 271 is connected to the first auxiliary pulley 272, the driving pulley 271 is rotated together with the first auxiliary pulley 272. Therefore, the driving force of the motor 275 can be transmitted to the driving pulley 271. On the other hand, the first conveyance belt 210 and the second conveyance belt 230 are connected to the same drive pulley 271. Further, the first conveyance belt 210 and the second conveyance belt 230 are connected to the same driven pulley 273. Accordingly, the first conveyance belt 210 and the second conveyance belt 230 can be driven by the motor 275 in the same direction and at the same speed.

FIG. 5 is a perspective view showing the partition 250 shown in FIG. 3, FIG. 6 is a sectional view taken along line I-I 'in FIG. 5, and FIG. 7 is a plan view of the partition 250 shown in FIG.

Referring to FIGS. 2 and 5, the partition 250 is disposed between the first conveyance belt 210 and the second conveyance belt 230. In one embodiment, the bulkhead 250 may extend along the first conveyor belt 210. The barrier rib 250 may have a first barrier rib 251 and a second barrier rib 253. In addition, the barrier ribs 250 may further have a third barrier rib 255. The first barrier ribs 251 may be arranged in one direction on a section and the second barrier ribs 253 may protrude from the first barrier ribs 251 in the other direction. The third barrier ribs 255 may be spaced apart from the second barrier ribs 253.

Referring to FIG. 6, in one embodiment, the first barrier ribs 251 may be vertically arranged in an end face. The second barrier ribs 253 may be disposed laterally at the ends of the first barrier ribs 251. However, the present invention is not limited thereto. The second barrier ribs 253 may protrude laterally from the first barrier ribs 251 or in a direction intersecting the first barrier ribs 251. The second barrier ribs 253 may protrude from the first barrier ribs 251 toward the first and second fixing portions 310 and 330 described below. Accordingly, the second bank 253 protruding toward the first fixing part 310 overlaps with the first conveyance belt 210. The second bank 253 protruding toward the second fixing unit 310 is overlapped with the second conveyance belt 230. The first barrier rib 251 has a through hole 251a disposed in a region where the first fixing portion 310 and the second fixing portion 330 are opposed to each other.

In one embodiment, the second partition 253 may have a first groove 253a, an inclined portion 252, and a horizontal portion 254. The first groove 253a is disposed in a region where the first fixing part 310 and the second fixing part 330, which will be described later, face each other. The first fixing part 310 and the second fixing part 330 fix the mold 150 located in the first groove 253a. The first groove 253a can be formed by one side of the second barrier rib 253 being concave from the edge of the second barrier rib 253 toward the first barrier rib 251 in a sectional view. In the region of the first groove 253a, the second bank 253 may partially protrude from the first bank 251 or may not protrude.

The inclined portion 252 may gradually protrude from the first groove 253a along the first partition wall 251. [ The horizontal portion 254 extends from the end of the inclined portion 252 along the first partition 251 to a predetermined length.

In another embodiment, the second partition 253 may include an inclined portion 252 and a horizontal portion 254 integrally formed. In this case, a plurality of second barrier ribs 253 having a predetermined length may be disposed along the first barrier ribs 251. Therefore, the second partition 253 need not have a separate first groove 253a.

FIG. 8 is a perspective view showing another embodiment of the partition 250 shown in FIG. 2. FIG. 9 is a view showing the vertical drive unit 290 according to FIG.

Referring to FIGS. 8 and 9, another embodiment of the barrier rib 250 according to the present invention may include a first barrier rib 251 arranged vertically in the vertical direction. 6, the barrier ribs 250 may be formed in a plate shape that does not include the second barrier ribs 253 or the third barrier ribs 255. The barrier rib 250 has a predetermined length. In addition, the plurality of partitions 250 may be disposed apart from the first conveyance belt 210. At this time, the barrier ribs 250 are disposed corresponding to the fixing portions 300 described later. That is, the partition 250 is disposed at least partially facing the fixing portion 300. Further, the barrier rib 250 may have a through hole (not shown) in which at least one side of the fixing portion 300 is inserted.

Meanwhile, the transfer unit 200 according to the present invention may further include a vertical driving unit 290. The vertical drive unit 290 may be disposed below the partition 250. The vertical drive unit 290 is connected to the partition 250 to move the partition 250 up and down. The vertical drive unit 290 may include a second cylinder 291 and a connecting means 293. One side of the connecting means 293 is connected to the second cylinder 291 and the other side is connected to the partition 250. The mold 150 may include a columnar body having a first diameter and a stepped portion disposed at the lower end of the body. The stepped portion may have a second diameter that is larger than the body. Thus, the connecting means 293 does not contact the step portion of the mold 150 during driving the partition 250 up and down.

In one embodiment, when the partition 250 is lowered by the vertical drive unit 290, the mold 150 may be fixed by the fixing unit 300, which will be described later. The mold 150 is moved by the first and second conveyance belts 210 and 230 when the partition 250 is lifted and the fixing by the fixing unit 300 is released. Therefore, in the course of transferring the mold 150, the mold 150 is not brought into contact with the partition wall 250. Meanwhile, the conveyance housing 220 surrounds at least a part of each of the first and second conveyance belts 210 and 230 and the belt drive unit 270.

10 is an enlarged view of the conveyance unit 200 and the fixing unit 300 shown in FIG. 2, and FIG. 11 is a plan view showing a state in which the mold 150 is fixed by the fixing unit 300 shown in FIG. to be.

Referring to FIGS. 2, 10 and 11, in one embodiment, the plurality of fixing portions 300 are disposed on the transfer portion 200, and may be spaced apart along the transfer portion 200. The fixing part 300 may include a first fixing part 310 and a second fixing part 330. The first fixing part 310 and the second fixing part 330 are arranged to face each other with the transfer part 200, in particular, the partition wall 250 therebetween.

At least one of the first fixing part 310 and the second fixing part 330 may include the support plate 320 and the first cylinder 340. The support plate 320 is connected to the first cylinder 340. The support plate 320 has a second groove 321 and a protrusion 323. At least a portion of the mold 150 may be inserted into the second groove 321. The second groove 321 is disposed at the end of the support plate 320 away from the first cylinder 340. In addition, the support plate 320 has at least one second groove 321. The protrusion 323 protrudes from the support plate 320 toward the partition wall 250 and is disposed adjacent to the second groove 321. The protrusion 323 may be inserted into the through hole 251a disposed in the first partition wall 251. Here, the first barrier rib 251 may have a groove instead of the through hole 251a. That is, the first barrier rib 251 may have a through hole 251a or a groove in which the protrusion 323 can be inserted.

The first fixing unit 310 can fix the mold 150 conveyed by the first conveyance belt 210. [ The second fixing part 330 can fix the mold 150 conveyed by the second conveyance belt 230. The support plate 320 is linearly moved by the first cylinder 340. When the support plate 320 is advanced, the mold 150 is at least partially inserted into the second groove 321 of the support plate 320. That is, the mold 150 can be fixed by the support plate 320, the protrusion 323 and the first partition wall 251.

FIG. 12 is a perspective view showing the printing unit 400 shown in FIG. 1, and FIG. 13 is a front view showing the printing unit 400 shown in FIG.

Referring to FIGS. 1, 12 and 13, a plurality of printing units 400 are disposed along the conveying unit 200. The printing unit 400 may include a printing pad 410, a third cylinder 430, a printing unit housing 450, a guide rail 470, and a guide block 490. The print pad 410 prints a predetermined pattern on the mold 150. The print pad 410 is connected to the third cylinder 430. The third cylinder 430 drives the print pad 410 up and down. Further, the print pad 410 is connected to the guide rail 470. The guide rail 470 and the third cylinder 430 are arranged substantially parallel. At least a portion of the guide rail 470 is movably inserted into the guide block 490. The guide block 490 is connected to the support bracket 491 and the support bracket 491 is fixed to the printing unit housing 450. The print pad 410 is not pivoted laterally when the print pad 410 is moved up and down by the guide rail 470 and the guide block 490. [

Up to this point, the configuration of the printing apparatus 10 according to the embodiment of the present invention has been described. Hereinafter, the operation of the printing apparatus 10 according to the embodiment of the present invention will be described.

Referring to FIGS. 1 and 2, a mold 150 is supplied from a mold supply unit 500. For example, the first index 510 feeds the mold 150 to the first conveyance belt 210. In addition, the second index 530 feeds the mold 150 to the second conveyance belt 230. Here, the first and second conveyance belts 210 and 230 are driven by the motor 275 in the same direction as the same speed. Thus, the mold 150 is conveyed in parallel by the first and second conveyance belts 210 and 230, respectively. When the mold 150 is transferred to the fixing part 300, the transfer part 200 is stopped.

Each of the first fixing part 310 and the second fixing part 330 fixes the mold 150. For example, the first cylinder 340 advances the support plate 320. While the support plate 320 is advanced, the mold 150 is inserted into the second groove 321 and advances together with the support plate 320. Finally, the mold 150 is supported by the support plate 320, the protrusion 323 and the partition 250.

When the mold 150 is fixed, the printing pad 410 of the printing unit 400 is lowered. The print pad 410 contacts the mold 150 to print a predetermined first pattern. Thereafter, the print pad 410 rises again. The transfer unit 200 operates again to transfer the mold 150 to the next fixing unit 300. When the mold 150 reaches the fixing unit 300 again, the transfer unit 200 is stopped. The print pad 410 of the printing unit 400 descends again to print the second pattern on the mold 150. [ Accordingly, at least two or more different patterns can be successively printed on the mold 150 according to the arrangement of the fixing unit 300 and the printing unit 400.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. Accordingly, the technical scope of the present invention should be determined by the technical idea of the appended claims.

10: Printing device
100: frame
200:
210: first conveyance belt
230: Second conveying belt
250:
270: Belt drive unit
290: Vertical drive unit
300:
400: Printing section
500: mold supply unit

Claims

frame;
A transfer unit disposed in the frame for transferring the mold;
At least one printing unit disposed on the transfer unit for printing a predetermined pattern on the mold; And
And at least one fixing part disposed adjacent to the conveying part and fixing the mold transferred from one side of the conveying part to the lower part of the printing part,
The transfer unit
A first conveyance belt extending from one side of the frame to the other side;
A second conveyance belt disposed substantially parallel to the first conveyance belt;
A partition wall disposed between the first conveyance belt and the second conveyance belt;
A belt drive unit for driving the first conveyance belt and the second conveyance belt;
And a vertical drive unit for vertically moving the partition.

The method according to claim 1,
Wherein the partition is disposed spaced apart along the first conveyance belt in correspondence with the fixing portion.

delete

The method according to claim 1,
Wherein,
A first bank disposed between the first conveyance belt and the second conveyance belt; And
And a second partition wall protruded from the first partition wall.

5. The method of claim 4,
Wherein the fixing portion includes a first fixing portion and a second fixing portion disposed opposite to each other with the conveyance portion therebetween.

6. The method of claim 5,
Wherein the second partition has a first groove disposed in a region facing the first fixing portion and the second fixing portion.

The method according to claim 6,
The second barrier ribs
An inclined portion gradually protruding from the first groove along the first partition;
And a horizontal portion extending from the inclined portion along the first partition.

6. The method of claim 5,
Wherein at least one of the first fixing portion and the second fixing portion comprises:
A support plate having a second groove into which at least a part of the mold is inserted;
And a drive cylinder connected to the support plate.

9. The method of claim 8,
Wherein the support plate is linearly moved by the drive cylinder.

9. The method of claim 8,
Wherein the partition has a through hole for receiving at least a part of the support plate.

The method according to claim 1,
Wherein the fixing unit and the printing unit are disposed along the conveying unit.

The method according to claim 1,
The printing unit includes:
A printing pad for printing the predetermined pattern;
And a third cylinder for moving the printing pad in a first direction.