JP2008087810A - Nozzle device and liquid supply method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a nozzle device that prevents air from being drawn when liquid is supplied into a closed-bottomed container or restrains to such a degree as to cause any problem. <P>SOLUTION: The nozzle device for supplying liquid to the closed-bottomed container has an installation tube 10 for installation on a discharge opening of a liquid supply device, a bottom wall 21 for covering the lower end of the installation tube, and a discharge tube 22 extending downward from the bottom wall 21. The discharge tube 22 has a large number of introduction holes 23 extending from the upper side of the bottom wall 21 to the inside of the side wall of the discharge tube 22 and having the lower ends staying in the side wall. Also, the discharge tube 22 has formed in it discharge grooves 24 open to the outer peripheral surface of the discharge tube 22 and communicating, inside the discharge tube 22, with the introduction holes 23. In a method of supplying liquid to the closed-bottomed container, the liquid is radially discharged from the nozzle device installed on the discharge opening of the liquid supply device, which causes the liquid to be in contact with the side wall of the container and drop along the side wall. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a nozzle apparatus and a supply method for supplying a liquid to a bottomed cylindrical container, and is also advantageously used to supply a transpiration agent to be solidified later to a transpiration container in a liquid state. It is related with the nozzle apparatus which can be performed.

  As a transpiration apparatus using a solid transpiration agent, for example, there is an apparatus as shown in FIG. This transpiration apparatus is one in which a solid medicine A is accommodated in a transpiration container 100. The transpiration container 100 includes a support body 110 in which a cylindrical support column 112 is erected at the center of a dish-shaped member 111, a cylindrical cover 120 that forms a medicine storage space between the support column 112, and a support. An upper column 130 inserted into the column 112 so that the vertical position can be adjusted, and a coupling member 140 that couples the upper column and the upper ends of the cover 120 to each other are provided. The container 100 has a support 110 with a double structure. That is, the support 110 is detachably fitted into the plate-shaped member 111 and a base 110a formed integrally with the plate-shaped member 111 and extending upward, and ii) the plate-shaped member 111. An attachment / detachment portion 110b including an inner fitting portion 111b and an outer support column 112b formed integrally with the inner fitting portion 111b is provided. And the attaching / detaching part 110b covers the base part 110a from above. The support column 112 is composed of an inner column 112a and an outer column 112b having a slightly larger diameter. A rib extending in the longitudinal direction is provided on one or both of the struts, and the upper strut 130 is stationary at an arbitrary position in the vertical direction with respect to the support strut 112 by coming into contact with pressure to tighten the rib. It can be made to.

  When the cover 120 is lifted during use, the coupling member 140 and the upper support column 130 are raised along with this, and a gap for transpiration of the drug is formed between the coupling member 140 and the dish-shaped member 111. Therefore, the volatilization amount of the medicine can be adjusted by adjusting the opening degree of the gap using the stationary action of the upper support 130 with respect to the support support 112. As such a transpiration apparatus, there exists a thing of literature 1, for example.

  To manufacture this transpiration apparatus, first, the support 110 is formed by covering the base 110a with the detachable part 110b. The cover 120 is covered from above, and the lower end 140e is liquid-tightly fitted to the upper end 111e of the dish-like member 111. The upper end of the cover 120 is left open without attaching the coupling member 140. Then, the container in this state is sent to the medicine supply line to supply the medicine.

  As a medicine supply device in the supply line, a medicine supply apparatus that sequentially supplies medicines to a container from a discharge port connected to a supply source through a nozzle is used. When the container reaches the supply point, the nozzle is inserted from the upper end opening of the cover 120 and the medicine is supplied. The drug generally contains water, a gelling agent, a fragrance, a surfactant, a salt, and the like as components, and becomes a solid at room temperature, but becomes liquid by heating at the time of supply.

  On the other hand, the above-mentioned upper support column 130 is connected to the connecting member 140 in advance, and when the supply of the medicine and cooling and solidification are finished, the upper support column 130 is inserted from the opening of the cover 120 and inserted into the support support column 112, 140 is fitted into the opening of the cover 120 to complete the main structure of the container. In a later step, cooling, packaging with a film, etc. are performed to complete the transpiration apparatus.

  An example of a conventional nozzle used in such a process is shown in FIGS. FIG. 7 shows a state where the right side of the center line is viewed from the front, and a left side of the center line is shown as a cross section passing through the center line. FIG. 8 is a bottom view of the nozzle. The nozzle 200 has a mounting cylinder 201 for mounting on the discharge port of the medicine supply device, a bottom wall 202 covering the lower end of the mounting cylinder, and an inner diameter smaller than the mounting cylinder 201 and extends downward from the bottom wall. The discharge cylinder 203 and a guide part 204 extending downward from the discharge cylinder 203 from the center of the bottom wall 202 are provided. On the upper inner surface of the mounting cylinder 201, a female screw part 201a for being screwed into the discharge port of the medicine supply device is provided. In the bottom wall 202 and the discharge cylinder 203, a large number of through holes 203a extending from the upper surface of the bottom wall 202 to the lower end of the discharge cylinder extend linearly. Moreover, the guide part 204 is equipped with the centering part 204a tapered at the center part lower end so that it may engage with the upper end part of the upper support | pillar 130 of a transpiration | evaporation container at the time of nozzle insertion.

  The nozzle 200 is used as shown in FIG. 9 when supplying the medicine to the container. The nozzle 200 is connected to the discharge port 302 of the medicine supply device by screwing the mounting cylinder 201. In the supply line, the transpiration container 100 is lifted by the carrier 301 when it reaches the supply point. When the transpiration container 100 is raised, the nozzle 200 is positioned so that the centering portion 204a of the guide portion 204 enters the upper end portion of the support column 112 (inner column 112a) of the transpiration vessel, and positions the container. 203 is positioned so as to surround the upper portion of the outer support 112b. Then, the liquid medicine A1 is supplied from the discharge port 302 through the nozzle 200 into the container. At this time, the liquid medicine A1 is discharged downward from the through-hole 203a and flows downward along the outer support 112b as shown by the arrows (FIG. 9 shows an enlarged layer thickness of the medicine A1 flow). ). Then, as the supply proceeds, the liquid level of the drug gradually rises, and when a predetermined amount is filled, the supply is stopped and the transport table 301 is lowered. After that, it goes through various processes such as a cooling process.

In the example shown in the figure, the different kind of medicine A0 (deodorant) is supplied in the same manner as described above and cooled and solidified, and the above-mentioned medicine A1 (fragrance) is supplied thereon. Finally, it becomes solid medicine A by both medicines.
Japanese Utility Model Publication No. 55-81329

  According to the nozzle 200, the liquid medicine A1, which is discharged from the many through holes 203a and falls along the peripheral surface of the outer support column 112b, has a tendency to entrain air under the liquid surface when reaching the liquid surface. . As a result, air is mixed as bubbles in the supplied medicine. Many of these bubbles rise and disappear over time after defoaming, but may remain to some extent. The remaining foam remains as a small void in the solidified medicine A, and there is a problem that the appearance is impaired.

  In addition, when supplying liquid to bottomed cylindrical containers such as bottles and cans of various shapes, it is simplest to supply the liquid downward from the discharge port of the liquid supply device. Since it is easy to increase the speed, the nozzle device generally has a discharge port directed downward. However, according to this nozzle device, as described above, the ejected liquid entrains air and sinks under the liquid surface, causing problems such as air mixing and generation of bubbles, and quality deterioration and appearance deterioration associated therewith. Sometimes.

  The present invention solves these problems of the prior art, and provides a nozzle device and a supply method that can eliminate or prevent air entrainment when supplying liquid to a bottomed cylindrical container. With the goal.

  In order to achieve the above object, the present invention provides a nozzle device for supplying a liquid to a bottomed cylindrical container, comprising a mounting tube for mounting on a discharge port of the liquid supply device, and a lower end of the mounting tube. A plurality of introductions that extend from the upper surface of the bottom wall into the side wall of the discharge cylinder and remain at the lower end within the side wall. A nozzle device is provided in which a hole is formed, and a discharge groove is formed in the discharge cylinder so as to open to an outer peripheral surface and communicate with the introduction hole.

  In order to achieve the above object, the present invention also provides a medicine containing space between a support body in which a cylindrical support column is erected at the center of the plate-shaped member and the support column, and A nozzle device for supplying a liquid medicine before solidification to a bottomed cylindrical container composed of a cylindrical cover that is detachably coupled to the medicine container, and is attached to a medicine discharge port in the medicine supply apparatus A bottom wall covering the lower end of the mounting cylinder, a discharge cylinder extending downward from the bottom wall, and a guide portion extending downward from the discharge cylinder from the center of the bottom wall, the bottom wall The discharge cylinder is formed with a plurality of introduction holes extending from the upper surface of the bottom wall into the side wall of the discharge cylinder and having a lower end staying in the side wall. The discharge cylinder opens to the outer peripheral surface and is internally provided with the introduction hole. And a discharge groove communicating with the guide portion, and the guide portion removes the cover. It said but also to provide a nozzle device which is characterized in that it comprises a centering portion which is tapered to engage the upper end of the support strut in the bottomed tubular container in the center bottom.

  In order to achieve the above object, the present invention is also a method for supplying a liquid to a bottomed cylindrical container, wherein the liquid is discharged in a radial direction from a nozzle device attached to a discharge port of the liquid supply apparatus, and is supplied to the container side wall. A supply method is also provided, wherein the liquid is dropped along the side wall of the container.

  In the nozzle device according to the present invention, the liquid discharged from the discharge port of the liquid supply device to the mounting cylinder is introduced into a number of introduction holes extending from the upper surface of the bottom wall of the mounting cylinder into the side wall of the discharge cylinder. Thereafter, the ink is discharged from a discharge groove communicating with the pore. In particular, since the lower end of the introduction hole remains in the side wall of the discharge cylinder and the discharge groove opens on the outer peripheral surface of the discharge cylinder, the liquid is discharged radially from the outer peripheral surface. Therefore, the liquid can be brought into contact with the cylindrical side wall of the bottomed cylindrical container and dropped along the side wall. In addition, the direction of the discharge groove on the outer peripheral surface of the discharge cylinder can be appropriately determined as necessary, such as a horizontal direction or a direction inclined upward or downward. Further, the discharge speed from the discharge groove is adjusted so that the liquid is brought into contact with the cylindrical side wall of the bottomed cylindrical container and dropped along the side wall without splashing after the contact. Good.

  Since the cylindrical side wall defines the inner peripheral surface located on the outer side in the radial direction of the container, the inner peripheral length thereof is large. Therefore, the speed of the liquid falling along the cylindrical side wall is much slower than the case of falling concentrated on the central part of the container. In this way, the falling liquid slowly reaches the liquid surface, resulting in no or very little air entrainment. Thereby, it is possible to solve problems such as air mixing in the liquid in the container, generation of bubbles, and quality deterioration and appearance deterioration associated therewith.

  Further, in the nozzle device for supplying the liquid medicine before solidification to the transpiration container, the same effect as the above effect can be obtained, and a cylindrical support column is provided at the center of the dish-like member. It is advantageous to correspond to the shape of a bottomed cylindrical container formed of a cylindrical cover that is formed with a medicine storage space between the support provided and the support column and is detachably coupled onto the dish-like member. Supply is possible. That is, a guide portion that extends downward from the discharge tube from the center portion of the bottom wall, and the guide portion is a taper that is tapered to engage with the upper end portion of the support column in the bottomed cylindrical container. Since the center portion is provided at the lower end of the center portion, the liquid discharged in the radial direction from the discharge groove opened in the outer peripheral surface of the discharge cylinder based on the positioning by the engagement between the centering portion and the support column, Appropriate contact with the container sidewall can be achieved. And thereby, the low-speed liquid flow along this side wall can be obtained reliably.

  In particular, when the discharge groove is formed as an annular groove continuously extending along the outer peripheral surface of the discharge cylinder, the liquid is formed into a continuous film until it reaches the side wall of the container after being discharged from the discharge groove. be able to. As described above, when the discharge liquid has a continuous film shape, it is advantageous in preventing air from being mixed into the liquid. That is, if the discharge liquid has a continuous film shape, the contact area with air is reduced, and the total opening area of the discharge groove is increased, so that the discharge speed from the discharge groove can be reduced, and these difficulties can be solved. it can. The discharge form in this case is most preferably a continuous film, but even if the continuity is interrupted in part, it is advantageous in preventing air from being mixed in since there are many continuous parts. However, it is also possible to form the discharge grooves by openings that are intermittently arranged in the circumferential direction of the discharge cylinder 22, and in this case as well, if the openings are arranged close to each other, adjacent discharge liquids It is connected in the middle to form a continuous film, and the same effect as above can be obtained. In addition, by appropriately setting the shape and dimensions of each opening, it is possible to reduce the degree of turbulence when the discharged liquid comes into contact with the container side wall, and this also makes it difficult to entrain air. it can.

  In the liquid supply method according to the present invention, when the liquid is supplied to the bottomed cylindrical container, the liquid is discharged in a radial direction from the nozzle device attached to the discharge port of the liquid supply apparatus and applied to the container side wall. The liquid is dropped along the side wall of the container. Therefore, the liquid spreads on the inner peripheral surface of the container and slowly reaches the liquid surface, and as a result, there is no or very little air entrainment, eliminating the problem of air mixing and bubbles in the liquid in the container. can do.

  In particular, in the above method, it is more advantageous to prevent air from entering the liquid if the liquid discharged from the nozzle device in the radial direction is discharged as a continuous film.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. The same or similar parts in the drawings may be denoted by the same reference numerals and description thereof may be omitted. 1 and 2 are a front view and a bottom view of a nozzle device 1 according to an embodiment of the present invention, respectively. This nozzle device 1 discharges and supplies a molten medicine into the container in order to form the solid medicine A accommodated in the transpiration container 100 shown in FIG.

  As illustrated in FIG. 3, the nozzle device 1 is formed by combining the mounting cylinder 10 and the discharge unit 20. The mounting cylinder 10 is composed of an annular body 11, and an upper female screw portion 12 is formed on the upper portion thereof to be screwed to the discharge port of the liquid supply device, and a lower portion is screwed on the discharge portion 20. The lower female screw portion 13 may be formed, and a knurled surface may be provided.

  The discharge unit 20 includes a flat plate portion 21 that serves as a bottom wall of the mounting tube 10 and a discharge tube 22 that has an outer diameter and an inner diameter smaller than the mounting tube 10 and extends downward from the flat plate portion 21. The flat plate portion 21 and the discharge cylinder 22 are formed with a number of introduction holes 23 that extend from the upper surface of the flat plate portion 21 into the side wall of the discharge tube 22 and whose lower ends remain in the discharge tube 22. In addition, the discharge cylinder 22 is formed with a discharge groove 24 that opens to the outer peripheral surface and communicates with the introduction hole 23 inside. In this embodiment, the discharge groove 24 is formed as an annular groove extending along the outer peripheral surface of the discharge cylinder 22.

  A male screw portion 26 for screwing with the lower female screw portion 13 of the mounting cylinder 10 is formed on the peripheral edge portion of the flat plate portion 21. A guide portion 27 extends downward from the lower surface of the central portion of the flat plate portion 21. The guide portion 27 includes a centering portion 27a tapered at the lower end of the central portion so as to be engaged with the upper end portion of the support column 112 in the container portion (bottomed tubular container) from which the cover 120 and the upper column 130 are removed. ing.

The dimensions and drug characteristics of the main part of this nozzle device are as follows:
Outer diameter of mounting cylinder d1: 48 mm
Inner diameter d2 of mounting cylinder 10 (location in contact with flat plate portion 21): 40 mm
Outer diameter d3 of the discharge cylinder 22: 34 mm
Inner diameter d4 of the discharge cylinder 22: 24.5 mm
Diameter and number of introduction holes 23: 1.5 mm × 32 pieces Length of introduction holes 23: 20 mm
Width of ejection groove 24 (gap in the vertical direction): 1 mm
Discharge direction of discharge groove 24: Horizontal Distance from discharge groove 24 to cover side wall: 10.5 mm
Drug viscosity: 200-500 cps
Drug temperature: 57.7-63.7 ° C
Discharge speed of medicine: 25 m / min In this embodiment, in the nozzle device for supplying the transpiration agent (heated and solidified later) in a heated and melted state to the container, the diameter of the introduction hole is 1 to 2 mm. The width of the discharge groove is preferably 0.5 to 1.5 mm, more preferably the diameter of the introduction hole is about 1.5 mm, and the width of the discharge groove is about 1 mm. If the diameter of the introduction hole and the width of the discharge groove are less than the above lower limit, clogging is likely to occur, or if a predetermined filling speed is obtained, the flow rate increases, resulting in a problem that foaming easily occurs, and the above upper limit is exceeded. If it exceeds, the flow rate becomes insufficient, and there is a problem that the medicine flows down without reaching the inner surface of the cover.

  Since the nozzle device is formed by combining the mounting cylinder 10 and the discharge portion 20 as described above, the processing of each portion is facilitated as described below. That is, since the mounting cylinder 10 has an annular shape with a central portion penetrating vertically, the upper female screw portion 12 and the lower female screw portion 13 can be easily cut. Moreover, since the flat plate part 21 is exposed at the uppermost position, the discharge part 20 has a drill length used for drilling the narrow and deep introduction hole 23 to a length necessary for the drilling depth. It can be kept close, which is advantageous for preventing damage to the drill. If the mounting cylinder 10 and the discharge portion 20 are integrated, the drill for drilling the introduction hole 23 must have an extra length corresponding to the height of the mounting cylinder 10 and are likely to be damaged. Become. Further, since the discharge groove 24 is a continuous annular groove, cutting can be performed while the discharge portion 20 is rotated around its central axis, thereby easily forming the discharge groove 24 communicating with the introduction hole 23. Can be formed.

  The nozzle device 1 is used in the same manner as described above with reference to FIG. 9 when supplying a liquid (medicine) to a container. However, in the nozzle device 1, the lower end of the introduction hole 23 extending from the upper surface of the flat plate portion 21 into the side wall of the discharge cylinder 22 stays in the discharge cylinder 22. A discharge groove 24 is formed in the opening. Therefore, as shown in FIG. 4, the drug A1 is discharged radially from the discharge groove 24, contacts the inner surface of the cover 120 of the container, and falls along the inner surface as shown by the arrows (in FIG. 4, the flow of the drug A1). The layer thickness is enlarged). Therefore, the medicine A1 spreads on the inner surface of the cover 120 having a large area and slowly falls and reaches the liquid surface, with the result that there is no or very little air entrainment. This prevents bubbles from being generated in the liquid in the container.

  The dimensions of the introduction hole 23 and the discharge groove 24 suitable for preventing air entrainment are appropriately determined according to the viscosity of the medicine or liquid to be discharged, in addition to those described above. Further, the distance from the discharge groove to the cover side wall is set so that the discharged medicine or liquid reaches the cover side wall and then falls along the cover side wall without splashing, and from the upper surface of the bottom wall of the nozzle device. The length of the introduction hole is determined so that such a position of the discharge groove can be obtained.

  The container filled with the medicine is then solidified with the liquid medicine in the cooling process, the upper support 130 and the coupling member 140 are attached, packaged with a film, and completed as a transpiration apparatus.

  This transpiration device can replenish cartridge-type refilling chemicals when the chemicals are completely evaporated by use. This cartridge also has a bottomed cylindrical container filled with a medicine, and in the manufacturing process, the medicine is filled using the same nozzle device as described above. FIG. 5 shows the filling process. As shown in the figure, the refilling container 100 ′ has a cylindrical support column 112 ′ erected at the center of the dish-shaped member 111 ′ and the lower end of the cover 120 ′ is coupled to the peripheral edge of the dish-shaped member 111 ′. Is. The drug is filled between the support column 112 ′ and the cover 120 ′ of the container 100 ′. Since the basic structure of the nozzle device 1 ′ is the same as that shown in FIGS. 1 to 3, in FIG. 5, corresponding part numbers are indicated by a dash (′). Also, the action at the time of supplying the medicine is the same, and as shown in the figure, the medicine A1 is discharged radially from the discharge groove 24 'and comes into contact with the inner surface of the cover 120', along the inner surface as shown by the arrow. It falls (in FIG. 5, the layer thickness of the flow of the medicine A1 is enlarged). As a result, the medicine A1 falls slowly and reaches the liquid surface, and there is no or very little air entrainment.

  The cartridge 120 is mounted so that the cover 120, the coupling member 140, and the upper support column 130 are removed from the transpiration container 100 as a whole, and the support support 112 is covered. As a result, the dish-shaped member 111 ′ of the cartridge is received by the dish-shaped member 111 of the evaporation container, and the support column 112 of the cartridge is covered with the support column 112 ′ of the cartridge. If the cover 120, the coupling member 140, and the upper support column 130 of the transpiration container 100 are attached to this, it will be in a usable state again.

  The present invention is not limited to the above embodiment, and various modifications can be made. For example, the nozzle device can be integrally formed without being separated into the mounting cylinder 10 and the discharge unit 20. Moreover, the nozzle device can be provided with shapes, dimensions, and the like necessary for supplying various liquids to the bottomed cylindrical container, in addition to supplying the chemical to the transpiration container.

It is a front view of the nozzle apparatus which concerns on one Embodiment of this invention (a left half is shown with a cross section). It is a bottom view of the nozzle apparatus shown in FIG. It is a front view which decomposes | disassembles and shows the nozzle apparatus shown in FIG. 1 for every component (a left half is shown with a cross section). It is a figure which shows the supply process of the chemical | medical agent using the nozzle apparatus of FIG. 1 with the longitudinal cross-section of a nozzle apparatus and a container. It is a figure which shows the supply process of the chemical | medical agent using the nozzle apparatus which concerns on other embodiment of this invention with the longitudinal cross-section of a nozzle apparatus and a container. It is a vertical front view which shows an example of the container with which chemical | medical agent supply is performed by the nozzle apparatus of FIG. It is a vertical front view which shows the conventional nozzle apparatus (a left half is shown with a cross section). It is a bottom view of the nozzle apparatus of FIG. It is a figure which shows the supply process of the chemical | medical agent using the nozzle apparatus of FIG. 7 with the longitudinal cross-section of a nozzle apparatus and a container.

Explanation of symbols

1, 1 'nozzle device 10, 10' mounting cylinder 20, 20 'discharge portion 21, 21' flat plate portion (bottom wall)
22, 22 ′ discharge cylinders 23, 23 ′ introduction holes 24, 24 ′ discharge grooves 27, 27 ′ guide portions 100, 100 ′ transpiration containers 110 supports 111, 111 ′ plate-like members 112, 112 ′ support columns 120, 120 'Cover 130 Upper strut 140 Bonding member A Solid drug A1 Liquid drug

Claims (5)

A nozzle device for supplying liquid to a bottomed cylindrical container,
A mounting cylinder for mounting in the discharge port of the liquid supply device;
A bottom wall covering the lower end of the mounting cylinder;
A discharge cylinder extending downward from the bottom wall,
The bottom wall and the discharge cylinder are formed with a number of introduction holes extending from the upper surface of the bottom wall into the side wall of the discharge cylinder and having a lower end staying in the side wall. A nozzle device, wherein a discharge groove communicating with the introduction hole is formed. A support body in which a cylindrical support column is erected at the center of the dish-shaped member; and a cylindrical cover that is detachably coupled to the dish-shaped member by forming a medicine storage space between the support column and the support column. A nozzle device for supplying a liquid medicine before solidification to a bottomed cylindrical container comprising:
A mounting cylinder for mounting on a drug outlet in the drug supply device;
A bottom wall covering the lower end of the mounting cylinder;
A discharge cylinder extending downward from the bottom wall;
A guide portion extending downward from the discharge tube from the center of the bottom wall,
The bottom wall and the discharge cylinder are formed with a number of introduction holes extending from the upper surface of the bottom wall into the side wall of the discharge cylinder and having a lower end staying in the side wall. A discharge groove communicating with the introduction hole is formed;
The nozzle has a centering portion tapered at the lower end of the center so as to be engaged with an upper end portion of the support column in the bottomed cylindrical container with the cover removed. apparatus. The discharge groove is formed as an annular groove continuously extending along the outer peripheral surface of the discharge cylinder, and the introduction hole has a lower end communicating with the annular groove. Nozzle device. A method of supplying a liquid to a bottomed cylindrical container, wherein the liquid is ejected in a radial direction from a nozzle device attached to a discharge port of the liquid supply apparatus and brought into contact with the container side wall, and the liquid is discharged along the container side wall. A supply method characterized by dropping. The supply method according to claim 4, wherein the liquid discharged in the radial direction from the nozzle device is discharged as a continuous film.

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