KR101983677B1 - Salt core inspection device and a salt core preheating supply device containing the same - Google Patents

Abstract

According to the present invention, provided are a salt core inspection device configured to selectively replace an air finger gripping a salt core, and a salt core preheating supply device including the same. According to the present invention, a pair of outlets of which a preheated salt core is taken out are formed, a pair of alignment preheating devices are provided to align the salt core for a piston mold press, and the salt core inspection device is capable of being supplied with different salt core without the need for resetting after an operation of the device is stopped to preheat the different salt core. The present invention comprises: a transfer robot unit; an alignment loader; a horizontal plate; and a second vision inspection means.

Description

Salt core inspection device and a salt core preheating supply device containing the same

The present invention relates to a salt core inspection apparatus and a salt core preheating supply apparatus including the same, and more particularly, after the position inspection of the salt cores preheated to a predetermined set temperature with heterogeneous salt cores having different sizes or shapes, The present invention relates to a salt core inspection device and a salt core preheating supply device including the same, wherein the salt core preheated to perform the post-indentation process is automatically performed.

In general, in diesel engines, the combustion chamber temperature is very high, which causes piston failure due to cracking due to instantaneous heat flux in the local area and thermal / mechanical fatigue due to combustion pressure.

To solve this problem, the cooling gallery is a cavity-type cooling channel formed in the piston of the engine to prevent abnormal changes in the piston material and an increase in the stress of the piston itself when hot combustion heat generated in the cylinder flows into the peripheral parts and the piston head. do.

As related patents, Korean Patent Application Laid-Open Publication No. 2005-0035350 discloses "A device for improving cooling performance of a piston having an oil gallery", and Korean Patent Publication No. 2010-0138496 describes "A salt core and hollow core for forming an oil gallery of an engine piston. Support pin structure ".

Conventionally, the salt core is heated in a salt core charging preheating furnace, and then a worker grabs the salt core using a separate forceps, mounts the piston in the piston mold, and injects molten metal into the piston mold equipped with the salt core to open the piston. Manufactured.

However, after the operator obtains the hot salt core heated in the charging preheating furnace one by one, the installation of the piston mold, there is a problem that a safety accident occurs due to poor working environment.

In addition, the conventional technology is limited to produce only a single type of salt core, there is a problem that the device must be reset to match the replacement product after cooling the preheating by stopping the operation of the device every time according to the production model changes .

The present invention is configured to selectively replace the air finger to grip the salt core, while forming a pair of air outlets for the pre-heated salt core is taken out, a pair of alignment preheating device in which the salt core is aligned for the piston mold press And a salt core inspection device capable of supplying heterogeneous salt cores without resetting after stopping the operation of the apparatus for preheating and supplying different salt cores, and a salt core preheating supply device including the same. For that purpose.

Salt core inspection apparatus according to the present invention is a transfer robot unit for selectively transporting the salt cores taken out to the X-axis, Y-axis, Z-axis through the outlet of the charging preheating furnace for preheating the salt core to the corresponding high temperature; Alignment loader coupled to the arm end of the transfer robot unit, the air finger to grip the salt core is selectively replaced, the horizontal plate and the alignment loader for horizontally placing the salt core gripped by the alignment loader on the plane Selective replacement of the air finger to grip the salt core, including a second vision inspection means for reading the position angle of the salt core on the basis of the image taken by photographing the shape of the bottom surface of the salt core gripped and conveyed to Heterogeneous salt cores of different sizes and shapes are examined together.

At this time, the alignment loader according to the present invention is a plate connected to the arm end of the transfer robot unit, the first tool changer is provided on the lower portion of the plate, optionally the vacuum pressure is generated on the lower surface, and the first tool changer A second tool changer selectively fixed to a lower surface by vacuum pressure, an air finger provided at a lower portion of the second tool changer, and having a plurality of mounting protrusions protruding outward from the side, and being divided into three elements It is provided in the lower portion of the finger, and optionally comprises a jaw for opening the inward or outward by the pneumatic pressure provided, or to grip the salt core from the outside inward.

In addition, the salt core inspection apparatus according to the present invention may be further provided on the horizontal and opposing side, and may further include a tool holder for mounting a plurality of air fingers with different jaws.

In addition, the discharge nozzle is provided on one side of the horizontal plate according to the present invention, the air is ejected from the horizontal plate by injecting air to the salt core is determined to be defective, and the bad salt core provided on the lower portion of the horizontal plate, separated from the horizontal plate It may further include a conveyance chute to collect the defective guide hopper, and the lower portion of the defective guide hopper, guides the defective salt core collected by the defective guide hopper to the outside.

In addition, the salt core preheating and supplying device according to the present invention comprises a charging unit for partitioning the disc-shaped base and charging the salt core into a magazine, and a preheating unit for preheating the salt core charged in the magazine with a heating means provided therein, A charge preheating furnace having a blowout outlet through which preheated salt cores are blown out on the preheating unit, and provided at one side of the charge preheating furnace, selectively selects salt cores blown out through the outlets of the charge preheating furnace. It includes a salt core inspection device for inspecting the position of the salt core while feeding in the direction of the axis, Y axis, Z axis.

At this time, the preheating part of the charging preheating furnace according to the present invention forms an arc shape when viewed from the upper side, the operator can see the inside of the passage to the shutter opening and closing the passage in the form of a passage at the end of the passage of the preheating portion. Viewing window can be further equipped.

And provided in the lower position of the outlet of the charging preheating furnace according to the present invention, while selectively lifting the elevating member through the lower portion of the magazine, so that the salt core accommodated in the magazine is taken out from the charging preheating through the outlet And taking out means.

In addition, a turntable is disposed below the charging preheating furnace according to the present invention, and a plurality of magazines are disposed radially on an upper surface thereof, and is rotated about an axis to transfer the magazines along the charging part and the preheating part of the charging preheating furnace. And an electric motor provided below the turntable to rotate the turntable with an externally applied power source.

Salt core inspection apparatus and a salt core preheating supply apparatus including the same according to an embodiment of the present invention has the following effects.

First, a pair of air outlets for gripping the salt cores are selectively replaced, and a pair of outlets through which the preheated salt cores are ejected is formed, and a pair of preheating devices in which the salt cores are aligned for the piston mold press-fitting is provided. Thus, after the driving of the apparatus is stopped to preheat supply of the different types of salt cores, the different types of salt cores can be supplied together without resetting.

Second, the heating and supply of the salt core can be made automatically, reducing the manpower, there is an effect that can prevent the occurrence of a safety accident in advance.

1 is an exemplary view illustrating a salt core inspection apparatus according to an embodiment of the present invention.
2 is an exemplary view illustrating an alignment loader of the salt core inspection apparatus according to an embodiment of the present invention.
Figure 3 is an exemplary view illustrating a side of the salt core preheating supply apparatus according to an embodiment of the present invention.
4 is an exemplary view illustrating a front surface of a salt core preheating supply device according to an embodiment of the present invention.
5 is an exemplary view illustrating a top surface of a salt core preheating supply device according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all of the technical idea of the present invention, these are equivalent to replaceable at the time of the present application It should be understood that there may be one variation.

The present invention automatically preheats to a corresponding set temperature with heterogeneous salt cores of different sizes or shapes, and after preliminary inspection of the position of the preheated salt cores, automatically supplying the preheated salt cores so that the post-indentation process is performed. It relates to a salt core inspection device and a salt core preheating supply device including the same, which will be described below with reference to the drawings.

Salt core inspection apparatus according to an embodiment of the present invention includes a transfer robot unit 300, the alignment loader 310, the horizontal plate 410 and the second vision inspection means 420, the transfer robot unit ( 300 is preheated in the charging preheating furnace 100, the salt core (1) exposed to the outside transfers the transfer robot unit 300 by a single grip.

At this time, the transfer robot unit 300 is provided on the upper center of the charging preheating furnace 100, the entire upper surface of the charging preheating furnace 100 can be set as a transfer area, the charging preheating furnace 100 The salt core 1 exposed to the outside through the outlet 103 is obtained from the magazine 200 by the alignment loader 310 and selectively transported in the directions of X, Y, and Z axes.

And the end of the transfer robot unit 300 is provided with an alignment loader 310, the alignment loader 310 includes a plate 311 connected to the arm end of the transfer robot unit 300, the plate An air finger 320 is provided below one side of the 311.

In this case, the air finger 320 grips the salt core 1 exposed to the outside through the outlet 103 of the charging preheating furnace 100 with the jaws 313, and the jaws 313 are divided into three elements. It is divided so as to selectively open outwardly by pneumatically or outwardly, or to grip inwardly outward to grip or release the salt core 1.

Therefore, the salt core 1 is gripped by the jaws 313 of the air finger 320, the arm of the transfer robot unit 300 is transferred in the X-axis, Y-axis, Z-axis direction.

Looking at the alignment loader 310 according to an embodiment of the present invention in more detail, the alignment loader 310 is an air finger 320 to handle different types of salt core (1) In this case, the first tool changer 312 is provided below the plate 311, and the second tool changer 321 is provided on the upper surface of the air finger 320.

The first tool changer 312 and the second tool changer 321 are in close contact with each other under vacuum pressure, and the air finger 320 is fixed to the lower portion of the plate 311.

At this time, the pneumatic pressure is provided to the air finger 320, so as to control the driving of the jaws 313,

An nipple 322 through which air pressure enters and exits the air finger 320 is protruded on an upper surface of the second tool changer 321, and an insertion hole into which the nipple is inserted into a center of a lower surface of the first tool changer 312. 314 is formed, and as the first tool changer 312 and the second tool changer 321 are brought into close contact with each other under vacuum pressure, pneumatic pressure provided from the outside is cut by the air finger 320, and the jaw ( Drive control which is spread outwardly or retracted inward from the outside is made.

Therefore, the alignment loader 310 provided at the arm end of the transfer robot unit 300 is provided with air fingers 320 corresponding to the salt cores 1 of various sizes or shapes, respectively, by type, and corresponding salt cores 1. When using the air finger 320 corresponding to the arm of the transfer robot unit 300 is moved to the mounting place equipped with the air finger 320, the first tool changer 312 corresponding to the air finger ( After the interview with the second tool changer 321 of 320, the air finger 320 is applied to the plate 311, that is, the arm of the transfer robot unit 300 by applying a vacuum pressure.

And in order to separate the fixed air finger 320, the alignment loader 310 with reference to Figure 4 after the arm end of the transfer robot unit 300 is located in the mounting place where the corresponding air finger 320 is provided, The vacuum pressure applied between the first tool changer 312 and the second tool changer 321 is released so that the air finger 320 fixed by its own weight separates itself.

In addition, the alignment loader 310 of the transfer robot unit 300 is provided with a first vision inspection means 330 on the lower side of the other side of the plate 311, the first vision inspection means 330 is the salt core Taking the shape of (1) and inspecting the crack and damage of the salt core (1) based on the image taken.

An air nozzle 341 is disposed on one side of the plate 311 so that the air nozzle 341 selectively sprays air to clean the surface of the salt core 1.

In addition, the salt core 1 conveyed by the transfer robot unit 300 is first transferred to the position inspection unit before being supplied to the next process, and the position inspection unit is located at one side of the charging preheating furnace 100. The position angle of the salt core 1 transferred by the 300 is corrected.

Looking at the position inspection unit in more detail, the position inspection unit horizontal plate 410 for horizontally placing the salt core (1) transferred by the transfer robot unit 300, the transfer robot unit 300 Second vision inspection means 420 for photographing the lower surface of the salt core (1) transported by the included), the photographing by photographing the lower surface of the salt core (1) to maintain the horizontal by the horizontal plate 410 The position angle of the salt core 1 is corrected so that the fixing hole position angle of the salt core 1 is read out based on the captured image.

At this time, the position angle of the salt core (1) is the position angle correction of the salt core (1) by the rotation of the alignment loader 310 of the transfer robot unit 300, the transfer robot unit 300 is a salt core ( The salt core 1 is transferred to the alignment preheater 500 while rotating 1) at a correction angle.

And one side of the horizontal plate 410 is provided with a discharge nozzle 430, the discharge nozzle 430 is ejected from the horizontal plate 410 by injecting air to the salt core (1) determined bad.

At this time, the separated salt core 1 is collected by the defective article hopper 440 provided at the lower portion of the horizontal plate 410, and the defective salt core 1 separated from the horizontal plate 410 is the defective product guide. It is discharged to the outside by the guide of the transfer chute 450 provided in the lower portion of the hopper 440.

In addition, one side of the position inspection unit according to an embodiment of the present invention is further provided with a tool holder 460 is equipped with a plurality of air finger 320 having a jaw 313 having different specifications, the tool holder 460 Is provided on the opposite side to the horizontal stage 410, and when viewed from the upper side to form a plurality of receiving space of the '∩' shape, so that the air finger 320 with the jaws 313 is accommodated.

At this time, the mounting protrusion 323 is formed on the side of the air finger 320, the mounting protrusion 323 of the air finger 320 is seated in the mounting groove formed on both sides of the receiving space of the tool holder 460 The air finger 320 is accommodated.

Salt core preheating supply apparatus according to an embodiment of the present invention including the salt core inspection apparatus includes a charging preheating furnace 100, a plurality of magazines 200 and the alignment preheating apparatus 500, see the drawings Looking at it as follows.

First, the charging preheating furnace 100 is a disc-shaped base 101 is installed spaced apart from the ground by a certain height, at this time is supported by the support frame (2), the center of the base 101 is divided into one piece A charging unit is disposed in the other side, and a preheating unit is disposed on the other side, and the preheating unit is formed with an inner wall surface, a ceiling, and a floor as a heat insulating member, and an insulated passage 110 is formed so that heat generated therein is not conducted to the outside.

The passage 110 of the preheating unit is a space in which a plurality of magazines 200 are moved, and the shutter 120 is fixed to a cylinder at the end of the passage 110 to open and close in a case shape, and the shutter 120 is provided. ) Controls the entry and exit of the magazine 200 in the passage 110 as well as the movement of heat inside the passage 110.

At this time, the passage 110 of the preheating part of the charging preheating furnace 100 forms an arc shape when viewed from the upper side, and the passage 110 is provided in the shutter 120 provided at the end of the passage 110 of the preheating part. A viewing window 121 is provided to allow the operator to see the inside, and the ejection state of the salt core 1 drawn out from the passage 110 and from the magazine 200 to the outlet 103 through the viewing window 121. The operator performing the charging work at the charging department can check the back.

Opening and closing of the shutter 120 according to an embodiment of the present invention will be described as limited to the cylinder, but is not limited to this, the actuator, timing belt, chain, etc. are selectively employed, but the element having durability at high temperature It is preferable to be adopted.

And one of the passages 110 is provided with a heating means 111 to form a preheating zone, the preheating zone is heated by the heating means 111 to the set temperature, the salt core (1) ) Is loaded magazine 200 is heated to a corresponding temperature (about 500 ℃).

The preheating zone is also provided with a temperature sensor (not shown), it is possible to control the driving of the heating means 111 based on the temperature of the preheating zone measured by the temperature sensor.

And the magazine 200 is arranged at regular intervals along the passage 110 of the charging preheating furnace 100, wherein the magazine 200 to accommodate the salt core (1) in a vertical line to accommodate therein, The overall shape is formed in a cylindrical shape having a length in the upper and lower directions, and accommodates the plurality of salt cores 1 loaded in a vertical line therein.

More specifically, the magazine 200 has a plurality of vertical members 201 having lengths in up and down directions radially, and a reinforcing member 202 having a ring shape on the outer circumferential surface of the vertical members 201 disposed radially. ) Is disposed, and the outer circumferential surface of the vertical members 201 and the inner circumferential surface of the reinforcing member 202 are combined with each other to form a cylindrical space.

The upper end of the radially disposed vertical members 201 is coupled to the upper member 203, and the upper end is closed. The lower end of the radially disposed vertical members 201 is coupled to the lower member 204. Closes.

An elevating member 205 is provided below the preheating zone of the passage 110, and the elevating member 205 supports the salt core 1 accommodated in the space of the magazine 200 while the vertical members 201 are provided. Ascend along the inner lead.

Here, the outlet 103 having an opening and closing door is provided on the upper surface of the end point of the preheating zone so that the end of the preheating zone 100 can take out the salt core 1 after the preheating is completed. Is formed, and the salt core 1 accommodated in the magazine 200 is discharged to the outside through the outlet 103.

In this case, the salt core preheating and supplying device according to an embodiment of the present invention forms the above-described outlet 103 as a pair, and the different types of salt cores 1 are ejected through the respective outlets 103, and a pair The outlet 103 of is opened and closed by a single opening and closing door.

And the extraction of the salt core (1) is made of the operation of the take-out means 130 provided in the lower portion facing the discharge port 103 of the charging preheating furnace 100, the take-out means 130, It is preferable that a pair is provided to correspond to each of the pair of outlets 103 according to one embodiment of the present invention.

The pair of take-out means 130 are respectively disposed on each outlet 103 position, and the take-out means 130 is a lifting rod employing any one drive means of a cylinder, a linear motor, a rack and a pinion gear. As the 131 moves up and down in the vertical direction, the elevating member 205 provided in the space of the magazine 200 is raised to take out the salt core 1 through the ejection opening 103.

In this case, the lifting rod 131 raises the salt core 1 accommodated in the magazine 200 in multiple stages, and the lifting rod 131 of the magazine 200 is opened through the bottom surface of the magazine 200 opened. Upon entering the space, the elevating member 205 rises in multiple stages in the magazine 200 by the elevating rod 131 which rises in multiple stages depending on whether the salt core 1 is ejected. Ascending and descending, the heterogeneous salt cores 1 loaded in the magazine 200 space are individually outside the passage 110 of the preheating unit through a pair of ejection means 130 and a pair of ejection openings 103, respectively. It is taken out.

And the magazine 200 is moved along the passage 110 by the turntable 150 provided in the lower portion of the passage 110 of the charging preheating furnace 100, the turntable 150 is the overall shape of the disc A plurality of magazines 200 are disposed radially along the circumference, and a magazine flange capable of positioning and fixing the magazine 200 is arranged radially on the upper surface thereof, and the magazine 200 is fastened to the magazine flange by bolts. To prevent accidents caused by the magazine falling over.

Through-holes 151 are formed at the points where the magazine 200 is located in the turntable 150, and the lifting rods 131 of the ejection means 130 are connected to the magazines through the through-holes 151. Enter the bottom of 200).

In addition, a lower portion of the turntable 150 is provided with an electric motor 160 to rotate the turntable 150 by the power of the electric motor 160 to move the magazine 200 along the passage (110). .

 Accordingly, the charging preheating furnace 100 is preheated to a predetermined set temperature while moving the plurality of magazines 200 in which the plurality of salt cores 1 are accommodated along the vertical length direction and moving along the passage 110. When the magazine 200 that is preheated and moved along the passageway of the furnace 100 is located at the end point of the preheating zone, the lifting bar 131 of the take-out means 130 provided at the lower portion of the charging preheating furnace 100 is Stepping up the salt core (1) stacked in a vertical line in the magazine 200 while entering the lower surface of the magazine 200, the salt core (1) through the outlet 103 of the charging preheating furnace 100 It is taken out to the outside.

At this time, the extraction means 130 is preferably stepped up to the same height as the height of the salt core (1) because the salt core (1) is discharged individually from the magazine (200).

And the alignment preheating apparatus 500 according to an embodiment of the present invention is provided in a pair, each of which is disposed on the left and right of the position inspection unit 400 on the basis of the position inspection unit 400, the position inspection unit The salt core 1 is supplied to the next post-process while taking over and preheating the salt core 1 whose position correction is completed by 400.

At this time, the alignment preheating device 500 is located on the front of the second vision inspection means 420, the salt core having the position angle inspection is immediately received in the alignment preheating device 500, the operation radius of the robot than conventional This reduces the process cycle time.

Therefore, the salt core inspection apparatus and the salt core preheating supply apparatus including the same according to an embodiment of the present invention can automatically heat (preheat), inspect, and supply the salt core, thereby reducing manpower and causing a safety accident. Of course, it is possible to prevent the occurrence of, of course, by forming a pair of outlets for the pre-heated salt core withdrawal, and a pair of alignment preheating device is aligned with the alignment of the salt core for the piston mold press, heterogeneous salt core It is possible to supply heterogeneous salt cores without the need for resetting after the device is shut down to preheat.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

1: saltcore 2: support frame 100: charging preheating
101: base 103: outlet 110: passage
111: heating means 120: shutter 121: viewing window
130: take-out means 131: lifting rod 150: turntable
151: through hole 160: electric motor 200: magazine
201: vertical member 202: reinforcing member 203: upper member
204: lower member 205: elevating member 300: transfer robot unit
310: alignment loader 311: plate 312: first tool changer
313: encounter 320: airfinger 321: second tool changer
330: first vision inspection means 341: air nozzle
410: horizontal plate 420: second vision inspection means 430: discharge nozzle
440: defective product guide hopper 450: transfer chute

Claims (8)

A transfer robot unit for transferring the salt cores taken out to the X-axis, the Y-axis, and the Z-axis selectively through the outlets of the charging preheating furnace for preheating the salt core to the corresponding high temperature;
An alignment loader coupled to an arm end of the transfer robot unit, in which an air finger to grip the salt core is selectively replaced;
A horizontal plate for horizontally placing the salt core gripped by the alignment loader on a plane; And
Selecting an air finger to grip the salt core, including a second vision inspection means for reading the position angle of the salt core on the basis of the image taken by taking the image of the bottom surface of the salt core is transferred to the alignment loader Salt core inspection device that heterogeneous salt cores of different size and shape accompany each other with a simple replacement.
The method according to claim 1,
The alignment loader
A plate connected to an arm end of the transfer robot unit;
A first tool changer provided under the plate and optionally generating a vacuum pressure on a lower surface thereof;
A second tool changer selectively fixed to a lower surface of the first tool changer by vacuum pressure;
An air finger provided below the second tool changer and having a plurality of mounting protrusions protruding outward from a side thereof;
Salt core inspection apparatus comprising: a jaw provided in the lower portion of the air finger while being divided into three elements, to open the inward outward by the pneumatic pressure provided selectively, or to grip the salt core by retracting inward from the outside .
The method according to claim 2,
Salt core inspection apparatus further provided on the side opposite to the horizontal plate, the tool holder is mounted with a plurality of air finger with different jaws.
The method according to claim 1,
A discharge nozzle provided at one side of the horizontal plate and discharging air from the salt core which is determined to be defective and is separated from the horizontal plate;
A defective article hopper provided at a lower portion of the horizontal plate and collecting a defective salt core separated from the horizontal plate;
And a transfer chute provided under the defective guide hopper to guide the defective salt core collected by the defective guide hopper to the outside.
Comprising a disc-shaped base and a charging portion for charging the salt core into the magazine, and a preheating portion for preheating the salt core charged in the magazine with a heating means provided therein, the preheated salt core on the preheating portion to the outside A charging preheating furnace which forms a blowout outlet; And
Claim 1 is provided on one side of the charging preheating furnace, to check the position of the salt core, while selectively transporting the salt cores taken out through the outlets of the charging preheating furnace in the X-axis, Y-axis, Z-axis direction, claim 1 4. A salt core preheating and supplying apparatus comprising the salt core inspection apparatus of claim 1.
The method according to claim 5,
Preheating unit of the charging preheating furnace
When viewed from the upper side forms an arc
Salt shutter for opening and closing the passage in the form of a passage at the end of the passage of the preheating unit further comprises a viewing window through which the operator can see the inside of the passage.
The method according to claim 5,
It is provided in the lower portion of the outlet of the charging preheating furnace, while selectively lifting the elevating member through the lower portion of the magazine, the take-out means for allowing the salt core accommodated in the magazine to be taken out from the charging preheating furnace through the outlet Salt core preheater.
The method according to claim 5,
A turntable disposed at a lower portion of the charging preheating furnace, and having a plurality of magazines radially disposed on an upper surface thereof, and rotating the center about an axis to transfer the magazines along the charging and preheating portions of the charging preheating furnace;
Salt core pre-heating device provided in the lower portion of the turntable, comprising an electric motor for rotating the turntable with a power applied from the outside.

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