JP2006083958A - Bi-directional actuating cylinder device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bi-directional actuating cylinder device capable of not only efficiently working workpieces but also improving working accuracy. <P>SOLUTION: The device equipped with a movable member actuating part 90 connected with an intermediate movable member 70 having a first movable side molding part 75 and a second movable side molding part 80, a first pressurizing piston 105 which is arranged in a first fixing side molding part 20 and passed through a first fixing table 12 to be fitted to and inserted into a first cylinder 45, a first fixing side molding part pressurizing member 100 moving forward and backward with respect to the first movable side molding part 75, a second pressurizing piston 115 which is arranged in a second fixing side molding part 50 and passed through a second fixing table 13 to be fitted to and inserted into a second cylinder 65, a second fixing side molding part pressurizing member 110 moving forward and backward with respect to the second movable side molding part 80, a first movable side molding part pressurizing member 120 moving forward and backward interlocked with the operation of the first fixing side molding part pressurizing member, and a second movable side molding part pressurizing member 130 moving forward and backward interlocked with operation of the second fixing side molding part pressurizing member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cylinder device that operates in both the front and rear directions.

  As a conventionally known cylinder device, a one-way operation type cylinder device or a bidirectional operation type cylinder device is known. The inventor has previously proposed the bidirectionally acting cylinder device 200 shown in FIGS. 6 and 7. The bi-directional cylinder device 200 includes a front side fixed table 213 and a rear side fixed table 214 which are arranged opposite to each other via the connecting rod 211 on the front and rear in the axial direction of the connecting rod 211, and the front side fixed table 213 and the rear side. The movable cylinder member 220 is inserted between the fixed rod 214 and the connecting rod 211 (see, for example, Patent Document 1).

  In the figure, reference numerals 215 and 216 denote fixed molds, 221 denotes an outer cylinder part of the movable cylinder member 220, 222 denotes an outer piston fitted into the outer cylinder part 221, and 225 and 228 denote working fluids for moving the movable cylinder member 220 forward and backward. 226, 227 are outer periphery rear side inflow / outflow portions, 231 is an inner peripheral cylinder portion of the movable cylinder 220, 232 is an inner peripheral piston fitted into the inner peripheral cylinder portion 231, 233 is a front operation member, 233A is a connecting rod between the inner peripheral piston 232 and the front operating member 233, 234 is a rear operating member, 234A is a connecting rod between the inner peripheral piston 232 and the rear operating member 233, and 235 is an operation for moving the inner peripheral piston 232 forward and backward. The inner periphery rear side inflow / outflow portion for fluid, 236 is the inner periphery front side outflow / inflow portion, 237, 238 are fixed side molds 215, 16 is a movable mold that correspond to.

  In this bidirectional operation cylinder device 200, the inner peripheral piston 232 operates independently in conjunction with the operation of the movable cylinder member 220, so that the operation members 233 and 234 of the inner peripheral piston 232 are within the same time. The distance (F1 + F2, R1 + R2) obtained by adding the movement distances (strokes) F2, R2 of the inner peripheral piston 232 to the movement distances (strokes) F1, R1 of the movable cylinder member 220 can be moved. Since it is operated in both the front and rear directions, work efficiency can be greatly improved.

By the way, in this cylinder apparatus, although the working efficiency could be improved, it was difficult to process the workpiece with high accuracy. In recent years, there has been a demand for a bidirectionally actuated cylinder device that not only efficiently processes a workpiece but also improves the machining accuracy.
JP 2002-70806 A

  The present invention has been made in view of the above points, and provides a bidirectionally operated cylinder device that not only efficiently processes a workpiece but also improves the processing accuracy.

  That is, the invention according to claim 1 is a machine table (11) having a first fixed table (12) and a second fixed table (13) arranged so as to face each other, and the first fixed table. A first fixed-side molding portion (20) formed on the surface side, a fixed piston (30) projecting on the opposite surface side of the first fixed table, and an opposite surface side of the first fixed table. A first pressure part (40) having a formed first cylinder part (45), a second fixed side molding part (50) formed on the opposite surface side of the second fixed table, and the second fixed part. Located between the second pressure part (60) having the second cylinder part (65) formed on the opposite surface side of the table, the first fixed side molded part and the second fixed side molded part, The first movable side molding part (75) facing the first fixed side molding part on one side and the other An intermediate movable member (70) having a second movable side molded portion (80) opposed to the second fixed side molded portion, and the intermediate movable member and a connecting rod (91, 92) connected to each other. A movable member actuating part (90) having a cylinder part (95) in which a fixed piston of a fixed table is inserted and disposed in the first fixed side molding part, and penetrates the first fixed table and passes through the first fixed table. A first fixed-side molded part pressurizing member (100) that is integrally provided with a first pressurizing piston (105) that is fitted into one cylinder part and that advances and retreats with respect to the first movable-side molded part, and the second fixed A second pressure piston (115) that is disposed in the side molding portion, penetrates through the second fixed table and is fitted into the second cylinder portion, is integrally provided, and advances and retreats with respect to the second movable side molding portion. A second fixed-side molded part pressing member (110); A first movable-side molded part pressurizing member (120) which is disposed in the movable-side molded part and advances and retracts in conjunction with the operation of the first fixed-side molded part pressurizing member, and is disposed in the second movable-side molded part. And a second movable-side molded part pressurizing member (130) that moves back and forth in conjunction with the operation of the second fixed-side molded part pressurizing member.

  According to the bidirectional operation cylinder device of the present invention, the first fixed-side molded portion formed on the facing surface side of the first fixed table and the second fixed-side molded portion formed on the facing surface side of the second fixed table; An intermediate portion having a first movable side molded portion facing the first fixed side molded portion on one side and a second movable side molded portion facing the second fixed side molded portion on the other side The movable member is connected via a connecting rod to a movable member operating portion having a cylinder portion in which a fixed piston protruding from the opposite surface side of the first fixed table is inserted, and operates in both the front and rear directions. Therefore, the workpiece can be processed both when the intermediate movable member moves forward and when the intermediate movable member moves backward. A first fixed-side molded part pressurizing member that advances and retreats with respect to the first movable-side molded part; a second fixed-side molded part pressurizing member that advances and retracts with respect to the second movable-side molded part; A first movable side molding part pressurizing member which is arranged in the molding part and advances and retracts in conjunction with the operation of the first fixed side molding part pressurizing member, and a second fixed side molding part pressurization which is arranged in the second movable side molding part. Since the second movable-side molded part pressurizing member that moves forward and backward in conjunction with the operation of the member is provided, the workpiece can be processed with higher accuracy. Therefore, it is possible to efficiently produce a workpiece with improved machining accuracy as compared with a conventional cylinder device, and it is possible to dramatically improve productivity.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a longitudinal sectional view showing a retracted state of an intermediate movable member in a bidirectional operation cylinder device according to an embodiment of the present invention, and FIG. 2 is a first fixed-side molding portion pressure member in the bidirectional operation cylinder device of FIG. FIG. 3 is a longitudinal sectional view showing an advanced state of the intermediate movable member in the bidirectional operation cylinder device, and FIG. 4 is a second fixed side molding portion addition in the bidirectional operation cylinder device of FIG. FIG. 5 is a cross-sectional view taken along line AA in the bidirectional operation cylinder device of FIG. 1.

  1 to 4 includes a machine base 11, a first fixed-side molded part 20, a fixed piston 30, a first pressurizing part 40, a second fixed-side molded part 50, 2nd pressurizing part 60, intermediate movable member 70, movable member actuating part 90, first fixed side molded part pressure member 100, second fixed side molded part pressure member 110, and first movable side molded A part pressing member 120 and a second movable side forming part pressing member 130 are provided. Reference numerals M1 and M2 in the figure are workpieces.

  The machine base 11 has a first fixed table 12 and a second fixed table 13 that are arranged so as to face each other. Reference numeral 12A denotes an opposing surface of the first fixed table 12 to the second fixed table 13, 12B denotes an opposite surface thereof, 13A denotes an opposing surface of the second fixed table 13 to the first fixed table 12, and 13B denotes an opposite surface thereof. .

  The first fixed side molding portion 20 is formed on the facing surface 12A side of the first fixed table 12, and is configured to hold the workpiece M1 during molding. In the first fixed-side molded portion 20 of the embodiment, a holding member 22 for the workpiece M1 is integrally formed by a rod 23 on a mounting member 21 fixed to the first fixed table 12, and the substantially center of the holding member 22 is formed. An opening 22a which is a through hole is provided in the part.

  The fixed piston 30 protrudes on the opposite surface 12B side of the first fixed table 12, and the piston portion 31 is formed integrally with the flat plate member 33 via the rod portion 32.

  The first pressurizing unit 40 is formed on the side opposite to the facing surface 12 </ b> B of the first fixed table 12 and has a first cylinder unit 45. The first cylinder portion 45 is formed with a first pressurizing portion front inflow / outflow portion 41 and a first pressurizing portion rear inflow / outflow portion 42 for the working fluid. In addition, the 1st pressurization part 40 of an Example is provided in the anti-facing surface 12B side of the 1st fixed table 12 via the flat plate member 33 of the said fixed piston 30, as shown in the figure.

  The second fixed side molding portion 50 is formed on the facing surface 13A side of the second fixed table 13, and is configured to hold the workpiece M2 during molding. In the second fixed-side molded portion 50 of the embodiment, a holding member 52 for the workpiece M2 is integrally formed by a rod 53 on an attachment member 51 fixed to the second fixed table 13, and a substantially center of the holding member 52 is formed. The opening 52a which is a through hole is provided in the part.

  The second pressurizing unit 60 is formed on the opposite surface 13 </ b> B side of the second fixed table 13 and has a second cylinder unit 65. The second cylinder portion 65 is formed with a second pressurizing portion front inflow / outflow portion 61 and a second pressurizing portion rear inflow / outflow portion 62 for the working fluid.

  The intermediate movable member 70 is located between the first fixed side molded part 20 and the second fixed side molded part 50, and the first movable side molded part 75 facing the first fixed side molded part 20 is provided on one side 71. And having a second movable-side molded portion 80 facing the second fixed-side molded portion 50 on the other side 72. The first movable-side molded part 75 performs the processing of the workpiece M1 between the facing surface 12A side of the first fixed table 12 and the one side 71 of the intermediate movable member 70. The first mold part 76 and a pedestal 78 on which a first movable cylinder portion 77 is formed. The second movable molding portion 80 is for processing the workpiece M2 between the facing surface 13A side of the second fixed table 13 and the other side 72 of the intermediate movable member 70. The second mold portion 81 and a pedestal 83 on which a second movable cylinder portion 82 is formed. In the embodiment, the first movable side cylinder portion 77 has a front inflow / outflow portion 73 for the working fluid formed in the intermediate movable member 70 and an operation formed in the base 78 of the first movable side molding portion 75. A rear inflow / outflow portion 79 for fluid is connected, and a front inflow / outflow portion 84 for working fluid formed on the base 83 of the second movable side molding portion 80 and an intermediate movable portion are connected to the second movable side cylinder portion 82. A rear inflow / outflow portion 74 for the working fluid formed in the member 70 is connected.

  The movable member operating portion 90 includes a cylinder portion 95 that is connected to the intermediate movable member 70 via connecting rods 91 and 92 and into which the fixed piston 30 (piston portion 31) of the first fixed table 12 is fitted. The cylinder portion 95 is formed with a working portion front-side inflow / outflow portion 93 and a working portion rear-side inflow / outflow portion 94 for working fluid, and when the working fluid flows into and out of the cylinder portion 95, the movable member The operation unit 90 is configured to advance and retreat.

  The first fixed-side molded part pressurizing member 100 pressurizes the workpiece M1 and is disposed in the first fixed-side molded part 20 and penetrates the first fixed table 12 to the first. A first pressurizing piston 105 that is fitted into the cylinder portion 45 is integrally provided, and is configured to advance and retreat with respect to the first movable side molding portion 75. Reference numeral 101 in the figure is a flat plate member, 102 is formed integrally with the first pressurizing piston 105 via the flat plate member 101, and can pass through the opening 22 a of the holding member 22 of the first fixed-side molded portion 20. One pressurizing portion, 103 is a piston portion of the first pressurizing piston 105, and 104 is a rod portion of the first pressurizing piston 105 that connects the flat plate member 101 and the piston portion 103.

  The second fixed-side molded part pressurizing member 110 pressurizes the workpiece M2, and is disposed in the second fixed-side molded part 50, passes through the second fixed table 13 and passes through the second fixed table 13. A second pressurizing piston 115 fitted into the cylinder portion 65 is integrally provided, and is configured to advance and retreat with respect to the second movable side molding portion 80. Reference numeral 111 in the drawing is a flat plate member, 112 is formed integrally with the second pressurizing piston 115 via the flat plate member 111, and can pass through the opening 52 a of the holding member 52 of the second fixed side molding portion 50. Two pressurizing portions, 113 is a piston portion of the second pressurizing piston 115, and 114 is a rod portion of the second pressurizing piston 115 that connects the flat plate member 111 and the piston portion 113.

  The first movable-side molded part pressurizing member 120 is disposed in the first movable-side molded part 75, moves forward and backward in conjunction with the operation of the first fixed-side molded part pressurizing member 100, and acts on the workpiece M1. Configured to perform pressure control. The first movable-side molded part pressurizing member 120 of the embodiment includes a first support part 121 that advances and retreats in the first mold part 76 and supports the workpiece M1 from the lower surface side. The part 121 is formed integrally with the piston part 123 that is inserted into the first movable side cylinder part 77 via the rod part 122.

  The second movable-side molded part pressurizing member 130 is disposed in the second movable-side molded part 80, moves forward and backward in conjunction with the operation of the second fixed-side molded part pressurizing member 110, and acts on the workpiece M2. Configured to perform pressure control. The second movable-side molded part pressurizing member 130 of the embodiment includes a second support part 131 that advances and retreats in the second mold part 81 to support the workpiece M2 from the upper surface side, and the second support The part 131 is formed integrally with the piston part 133 that is fitted into the second movable cylinder part 82 via the rod part 132.

  In this bidirectional operation cylinder device 10, as is well understood from FIG. 5, the first cylinder portion 45 of the first pressurizing portion 40 is formed in a ring shape, and the outer periphery of the first cylinder portion 45 is Further, the cylinder portion 95 of the movable member operating portion 90 is also formed in a ring shape.

  The operation of the bidirectional operation cylinder device 10 configured as described above will be described. In the bidirectionally acting cylinder device 10 of the embodiment, the workpiece M1 is placed on the upper surface of the first mold portion 76 of the first movable side molding portion 75 and the upper surface of the first support portion 121 of the first movable side molding portion pressure member 120. The workpiece M2 is placed on the upper surface of the holding member 52 of the second fixed-side molded part 50 and the upper surface of the second pressure part 112 of the second fixed-side molded part pressure member 110.

  First, as shown in FIG. 1, the working fluid flows into the rear portion of the cylinder portion 95 from the working portion rear inflow / outflow portion 94 of the movable member working portion 90. Since the fixed piston 30 (piston portion 31) fixed to the first fixed table 12 of the machine base 11 is fitted in the cylinder portion 95 of the movable member operating portion 90, the rear portion of the cylinder portion 95 is inserted. When the working fluid flows in, the movable member operating portion 90 operates so as to move backward with respect to the first fixed table 12. Since the intermediate movable member 70 is connected to the movable member operating portion 90 via the rods 91 and 92, the intermediate movable member 70 operates integrally with the movable member operating portion 90 in the backward direction (arrow X1). The intermediate movable member 70 has the first mold portion 76 of the first movable side molding portion 75 formed on one side 71 thereof as the holding member 22 of the first fixed side molding portion 20 via the workpiece M1. The workpiece M1 is retracted to the contact position, and the workpiece M1 is pressed and held by the first fixed-side molded portion 20 and the first movable-side molded portion 75.

  When the workpiece M1 is held under pressure, the workpiece M1 is processed by the first fixed-side molding portion pressing member 100 as shown in FIG. The first fixed-side molded part pressurizing member 100 moves forward from the first pressurizing part rear inflow / outflow part 42 of the first pressurizing part 40 to the rear part of the first cylinder part 45 (arrow). Y1), and the first pressurizing unit 102 operates to pressurize the workpiece M1. On the other hand, working fluid flows into the rear portion of the first movable side cylinder portion 77 from the rear inflow / outflow portion 79 of the first movable side molding portion 75 in conjunction with the operation of the first fixed side molding portion pressure member 100. Therefore, the first movable-side molded part pressurizing member 120 supports the lower surface side of the workpiece M1 being pressed by the first fixed-side molded part pressurizing member 100 by the first support part 121. Operates in the forward direction. At that time, since the operation of the first movable-side molded part pressurizing member 120 is adjusted so that the sudden pressure from the first fixed-side molded part pressurizing member 100 is not applied to the workpiece M1, the work piece is processed. The object M1 can be prevented from being damaged by rapid pressurization, and can be processed with high accuracy.

  After the processing of the workpiece M1, as shown in FIG. 3, the working fluid flows into the front part of the cylinder part 95 from the working part front side inflow / outflow part 93 of the movable member working part 90, and the movable member working part 90 and the intermediate movable member 70 are moved forward together (arrow X2), and the working fluid flows into the front portion of the first cylinder portion 45 from the first pressurizing portion front inflow / outflow portion 41 of the first pressurizing portion 40. The first fixed-side molded part pressure member 100 is moved backward (arrow Y2) so that the first movable-side molded part 75, the first fixed-side molded part 20, and the first fixed-side molded part pressure member 100 are separated from each other. To operate. Then, the processed workpiece M1 is taken out from the first mold part 76 of the first movable side molding part 75, and the first movable side molding part 75 of the first movable side molding part 75 is extracted from the front inflow / outflow part 73 of the intermediate movable member 70. The working fluid is allowed to flow into the front side portion of the side cylinder portion 77 to advance the first movable side molding portion pressurizing member 120, so that the workpiece M1 is newly replenished.

  In addition, as shown in the drawing, the second movable part molding part 50 of the second movable side molding part 80 formed on the other side 72 is connected to the intermediate movable member 70 via the workpiece M2. Therefore, the first movable side molded portion 75, the first fixed side molded portion 20, and the first fixed side molded portion pressure member 100 are moved forward to a position where they contact the holding member 52. And the second fixed-side molding part 50 and the second movable-side molding part 80 can be pressed and held at the same time.

  Then, when the workpiece M2 is held under pressure, the workpiece M2 is processed by the second fixed-side molding portion pressing member 110 as shown in FIG. The second fixed-side molded part pressurizing member 110 is moved backward from the second pressurizing part front-side inflow / outflow part 61 of the second pressurizing part 60 to the front part of the second cylinder part 65 (arrow Y3). Then, the second pressurizing unit 112 is operated to pressurize the workpiece M2. On the other hand, working fluid flows into the front portion of the second movable side cylinder portion 82 from the front inflow / outflow portion 84 of the second movable side molding portion 80 in conjunction with the operation of the second fixed side molding portion pressure member 110. Therefore, the second movable-side molded part pressure member 130 is moved backward while the upper surface side of the workpiece M2 being pressed by the second fixed-side molded part pressure member 110 is supported by the second support part 131. Operates on. At that time, the operation of the second movable-side molded part pressurizing member 130 is adjusted so that the sudden pressure from the second fixed-side molded part pressurizing member 110 is not applied to the workpiece M2. Similar to the first movable-side molded part pressurizing member 120, the workpiece M2 can be prevented from being damaged by rapid pressurization, and can be processed with high accuracy.

  After the processing of the workpiece M2, the working fluid flows into the rear portion of the cylinder portion 95 from the working portion rear inflow / outflow portion 94 of the movable member working portion 90, and the movable member working portion 90 and the intermediate portion The movable member 70 is retracted integrally, and the working fluid flows into the rear portion of the second cylinder portion 65 from the second pressurizing portion rear inflow / outflow portion 62 of the second pressurizing portion 60 to form the second fixed side. The part pressurizing member 110 is moved forward, and the second movable side molded part 80, the second fixed side molded part 50, and the second fixed side molded part pressing member 110 are operated so as to be separated from each other. Then, the processed workpiece M2 is taken out from the second mold part 81 of the second movable side molding part 80, and the second movable side molding part 80 of the second movable side molding part 80 is extracted from the rear inflow / outflow part 74 of the intermediate movable member 70. The working fluid is allowed to flow into the rear portion of the movable cylinder portion 82 to advance the second movable molding portion pressurizing member 130, so that the workpiece M2 is newly replenished.

  Further, as described above, when the intermediate movable member 70 is operated in the backward direction, the bidirectionally operating cylinder device 10 enters the pressurization holding state of the workpiece M1 shown in FIG. These steps are repeated.

  As described above, in the bidirectional operation cylinder device of the present invention, a workpiece with improved machining accuracy can be produced both when the intermediate movable member moves forward and backward. Productivity can be dramatically improved as compared to the cylinder device.

  In addition, the bidirectional | two-way action | operation cylinder apparatus of this invention is not limited only to the above-mentioned Example, A part of structure can be changed suitably and implemented in the range which does not deviate from the meaning of invention.

It is a longitudinal cross-sectional view which shows the reverse state of the intermediate movable member in the bidirectional | two-way action cylinder apparatus which concerns on one Example of this invention. It is a longitudinal cross-sectional view which shows the operation state of the 1st fixed side shaping | molding part pressurization member in the bidirectional | two-way action | operation cylinder apparatus of FIG. It is a longitudinal cross-sectional view which shows the advance state of the intermediate | middle movable member in the same bidirectional | two-way action cylinder apparatus. It is a longitudinal cross-sectional view which shows the operation state of the 2nd fixed side shaping | molding part pressurization member in the bidirectional | two-way action | operation cylinder apparatus of FIG. It is a cross-sectional view in the AA line in the bidirectional | two-way action cylinder apparatus of FIG. It is a longitudinal cross-sectional view which shows the operating state of the conventional bidirectional | two-way action cylinder apparatus. It is a longitudinal cross-sectional view which shows the operating state of the conventional bidirectional | two-way action cylinder apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Bidirectional cylinder apparatus 11 Machine stand 12 1st fixed table 13 2nd fixed table 20 1st fixed side shaping | molding part 30 Fixed piston 40 1st pressurization part 45 1st cylinder part 50 2nd fixed side shaping | molding part 60 2nd Pressurizing part 65 Second cylinder part 70 Intermediate movable member 75 First movable side molded part 80 Second movable side molded part 90 Movable member operating part 91, 92 Connecting rod 95 Cylinder part 100 First fixed side molded part pressure member 105 First pressure piston 110 Second fixed-side molded part pressure member 115 Second pressure-piston 120 First movable side molded part pressure member 130 Second movable side molded part pressure member

Claims (1)

A machine base (11) having a first fixed table (12) and a second fixed table (13) arranged to face each other;
A first fixed-side molded part (20) formed on the opposite surface side of the first fixed table;
A fixed piston (30) protruding on the opposite side of the first fixed table;
A first pressure part (40) having a first cylinder part (45) formed on the opposite surface side of the first fixed table;
A second fixed-side molded part (50) formed on the opposite surface side of the second fixed table;
A second pressure part (60) having a second cylinder part (65) formed on the opposite surface side of the second fixed table;
It has a 1st movable side shaping | molding part (75) which is located between said 1st fixed side shaping | molding part and a 2nd fixed side shaping | molding part, and opposes said 1st fixed side shaping | molding part on one side, and another side An intermediate movable member (70) having a second movable side molded portion (80) opposed to the second fixed side molded portion;
A movable member actuating part (90) comprising a cylinder part (95) connected to the intermediate movable member via a connecting rod (91, 92) and fitted with a fixed piston of the first fixed table;
A first pressurizing piston (105) that is disposed in the first fixed-side molding part and that passes through the first fixed table and is fitted into the first cylinder part is provided integrally with the first movable-side molding part. A first fixed-side molded part pressurizing member (100) that moves forward and backward,
A second pressurizing piston (115) that is disposed in the second fixed-side molded part and that passes through the second fixed table and is fitted and inserted into the second cylinder part is provided integrally with the second movable-side molded part. A second fixed-side molded portion pressurizing member (110) that moves forward and backward,
A first movable-side molded part pressurizing member (120) that is disposed in the first movable-side molded part and advances and retracts in conjunction with the operation of the first fixed-side molded part pressurizing member;
A second movable-side molded part pressurizing member (130) which is disposed in the second movable-side molded part and advances and retracts in conjunction with the operation of the second fixed-side molded part pressurizing member.
And a bi-directionally operating cylinder device.

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