JP2020104432A - Molded product molding system - Google Patents

Abstract

To provide a molded product molding system capable of moving a molded product removing machine to a position not hindering the replacement of a mold simply by opening a molding door when replacing the mold.SOLUTION: In the molded product molding system 1, a molded product removing machine 9 is installed to an inner wall 7A of a safety door 7. In the state in which the safety door 7 is closed, the molded product molding system is provided with a discharge passage 19 being a part of a discharge mechanism for discharging a molded product M which the molded product removing machine 9 has removed, from a mold 5 to the outside of the safety door 7. The discharge passage 19 discharges the molded product below the safety door 7.SELECTED DRAWING: Figure 1

Description

The present invention relates to an injection molding machine including an injection molding machine in which at least one safety door is arranged so as to face a molding die, and a molding product unloading machine for taking out a molding product from the molding die.

Japanese Unexamined Patent Publication No. 2000-190260 (Patent Document 1) discloses a two-axis indirect type transfer mechanism for taking out a molded product from a molding die on a side wall facing a safety door of a fixed platen located inside a safety door of a molding machine. A molded article system including the molded article unloading machine is disclosed.

JP, 2000-190260, A

With the structure in which the molded product take-out machine is fixed to the side of the fixed platen like the molded product take-out system of the conventional invention, the molded product take-out machine has a posture that does not hinder the change of the mold when the mold is replaced. Work is required. Further, it is necessary to provide the platen of the molding machine with a mounting structure for the molded product take-out machine, and the conventional invention cannot be applied to the existing molding machine.

An object of the present invention is to provide a molded product molding system capable of moving the molded product unloading machine to a position that does not hinder the replacement of the molded mold simply by opening the molding door when the molded mold is replaced. ..

The present invention is directed to a molded product molding system including an injection molding machine in which at least one safety door is arranged so as to face a molding mold, and a molded product unloader that takes out a molded product from the molding mold. In the molded product molding system of the present invention, the molded product unloader is attached to the inner wall of the safety door. The molded product unloading machine is provided with a discharge path for discharging the molded product taken out from the mold to the outside of the safety door when the safety door is closed. According to the present invention, it is not necessary to secure an installation space for the molded product take-out machine above and to the side of the molding machine, so that the molding machine and the molded product take-out machine can be installed in a narrow installation space. Further, according to the present invention, since the molded article take-out machine is attached to the safety door, when the molding die is replaced, only opening the safety door does not hinder the molded article take-out machine from exchanging the molding die. Can be moved to a position. Further, the present invention can be easily applied to the existing injection molding machine simply by replacing the safety door. Further, even if the molded product take-out machine is arranged inside the safety door, since the discharge passage is provided inside the safety door, the molded product can be discharged outside the molding door without opening the safety door.

The inlet of the discharge path of the discharge mechanism may be formed in at least one safety door. Then, the molded product take-out machine retracts the take-out head to a retracted position that does not interfere with the mold when the mold is closed, and when the mold is opened, the take-out head takes out the molded product from the mold, and the take-out operation is performed. After the take-out operation, a carrying operation for carrying the molded product to the entrance of the discharge path and a retreating operation for bringing the take-out head into a retreating state are carried out following the carrying operation. If the molded product take-out machine performs such an operation, even if the molded product take-out machine is arranged inside the safety door, the molding operation of the molding machine is not hindered.

When at least one safety door is composed of two safety doors arranged facing the molding die, the molded product unloader is attached to the inner wall of one of the two safety doors, It is preferable that the other one of the safety doors is formed with an inlet of the discharge passage of the discharge mechanism. In this case, the molded product take-out machine retracts the take-out head to a position that does not interfere with the mold when the mold is closed, and when the mold opens, the take-out head takes out the take-out operation from the mold. It is only necessary to be configured to perform a carrying operation for carrying the molded product to the entrance formed on the other safety door following the taking-out operation, and a retreating operation for bringing the taking-out head into a retreating state following the carrying operation. ..

The discharge passage preferably discharges the molded product below the safety door. In this way, the space for carrying the molded product can be reduced.

If the molded product unloader consists of an unloading mechanism that moves the unloading head and a base moving mechanism that moves the pedestal on which the unloading mechanism is installed, the base moving mechanism is installed on the inner wall of the safety door. Is preferred.

The base may be equipped with another take-out mechanism for taking out a spool runner generated during molding. This allows the spool runner to be removed inside the safety door.

The take-out mechanism and another take-out mechanism may be configured by a multi-axis multi-joint mechanism, a Scott-Russell mechanism, a horizontal multi-joint (scalar) mechanism, or a combination of these mechanisms and a turning mechanism.

The safety door is configured to open the molded product take-out machine without interfering with the molding machine when the take-out head of the molded product take-out machine is in the standby position. In this way, opening and closing the safety door does not damage the parts on the injection molding machine side.

Further, the safety door is provided with a bulging portion that bulges in a lateral direction away from the molding die, and the bulging portion is supported by the opening portion that opens toward the molding die, the opening portion, and the slide mechanism. In the case of the frame part and the door wall part facing the opening part, it is preferable to mount the molded product take-out machine on the frame part. With this configuration, since the molded product take-out machine is mounted on the frame portion supported by the slide mechanism, it is possible to suppress the occurrence of vibration during the operation of the molded product take-out machine.

Further, at least one safety door is composed of two safety doors arranged to face the molding die, and the molded product unloader is attached to the inner wall of one of the two safety doors. In this case, the other safety door of the two safety doors is formed with the entrance of the discharge path of the discharge mechanism, and the molded product taken out by the molded product unloader is received by the receiving head on the inner wall of the other safety door. A transporting machine for transporting to the entrance may be attached as a part of the discharging mechanism. In this case, the molded product ejector retracts the ejection head to a position where it does not interfere with the molding die when the molding die is closed, and when the molding die opens, the ejection head ejects the molded product from the molding die. An operation, a conveying operation of passing the molded product to a conveyor attached to the other safety door after the taking-out operation, and a retreating operation of bringing the take-out head into a retreating state following the conveying operation, and The carrier machine retracts the receiving head to a position where it does not interfere with the molding die when the molding die is closed, and when the molding die opens, a receiving operation of receiving a molded product from the take-out head, and a molding operation following the receiving operation. It is preferable to perform a carrying operation for carrying the product to the entrance of the discharge path provided on the other safety door, and a retracting operation for bringing the receiving head into the retracted state following the carrying operation. With this configuration, the molded product can be taken out and discharged separately, so that the molded product take-out cycle can be shortened.

FIG. 1A is a plan view of an essential part in the middle of a process of performing an extracting operation in the first embodiment, FIG. 1B is a cross-sectional view taken along the line BB of FIG. [Fig. 4] is a side view of a main part of the molded product molding system. (A) and (B) are states immediately before the take-out head is brought close to the molded article M by rotating the first arm to the third arm, and the molded article is sucked by the suction pad of the take-out head. Is shown. (A) and (B) have shown the state which rotated the 1st arm-the 3rd arm and pulled out the taking-out head out of the shaping|molding die in the vicinity of the molded product. (A) And (B) is a figure used in order to demonstrate the attachment state of a safety door. (A) And (B) is a figure which shows the state in which the molded product extractor is in a standby state. It is a figure which shows the state which opened the safety door. It is a figure which shows an example of how to provide the discharge path of a discharge mechanism. (A) And (B) is a figure which shows the other example of a discharge mechanism. (A) And (B) is a figure which shows the other example of a discharge mechanism. (A) And (B) is a figure showing other examples of a discharge mechanism. It is a figure which shows the further another example of a discharge mechanism. It is a figure used in order to explain how to take a power supply. It is a conceptual diagram which shows a modification.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1(A) to 1(C) are respectively conceptual diagrams for explaining the configuration of the first embodiment of the molded article molding system of the present invention, and FIG. 1(A) shows the first embodiment. FIG. 1B is a plan view of a main part of a stage in the middle of a process of performing an extracting operation in the embodiment, FIG. 1B is a cross-sectional view taken along the line BB of FIG. 1A, and FIG. It is a side view of the principal part of the product molding system. 1A to 1C, 3 is a molding machine for molding a resin molded product M, 5 is a molding die of the molding machine 3, and 7 is a safety door mounted on the molding machine 3. , 9 are molded product take-out machines. The molding die 5 of the molding machine 3 includes a fixed-side die 5A fixed to the fixed-side die plate 4A and a moving-side die 5B fixed to the moving-side die plate 4B. The movable die 5B is slidably supported by the four divers 6. The state shown in FIGS. 1A to 1C is a state in which the mold 3 is open and before the molded product M is taken out.

In the molded product molding system 1 of the present embodiment, a molded product unloader 9 is attached to the inner wall 7A of the safety door 7. The molded product take-out machine 9 includes a take-out mechanism 13 that moves the take-out head 11, and a base moving mechanism 17 that moves a base 15 on which the take-out mechanism 13 is mounted. The base moving mechanism 17 is attached to the inner wall 7A of the safety door 7. As will be described later, in the present embodiment, in the state where the safety door 7 is closed, one of the discharging mechanisms that discharges the molded product M taken out from the molding die 5 by the molded product unloading machine 9 to the outside of the safety door 7. A discharge path 19 (see FIG. 4) forming a part is provided. The discharge passage 19 is formed below the safety door 7 so as to discharge the molded product. In the present embodiment, the discharge mechanism is configured by the molded product take-out machine 9 and the discharge passage 19. In this way, the space for carrying the molded product can be reduced.

The molded product take-out machine 9 used in this embodiment is composed of a multi-axis multi-joint mechanism. Specifically, a first arm 21 whose one end is rotatably provided on the base 15 via a first rotation mechanism (not shown) and a second arm (not shown) on the other end of the first arm 21. A second arm 23 having one end rotatably provided via a turning mechanism, and a third arm having one end rotatably provided at the other end of the second arm 23 via a compound turning mechanism 24. Arm 25 of the. The composite rotation mechanism 24 has a function of rotating the third arm 25 in two directions, that is, the vertical direction and the horizontal direction. The take-out head 11 is attached to the tip of the third arm 25 via the attitude changing mechanism 10. Further, the extraction head 11 is provided with four suction pads 12.

The base moving mechanism 17 moves a first slide driving mechanism 27 that allows the base 15 to slide and moves the first slide driving mechanism 27 in a direction (horizontal direction) in which the mold 5 is opened and closed. And a second slide drive mechanism 29. The first slide drive mechanism 27 is composed of a base 27B to which a rail 27A is fixed and a belt drive mechanism 27C that moves the base 5 along the rail 27A. The second slide drive mechanism 29 includes a base 29B to which a rail 29A is fixed and a screw type drive mechanism 29C that moves the base 27B of the first slide drive mechanism 27 along the rail 29A. The first rotating mechanism, the second rotating mechanism, and the combined rotating mechanism 24 each include a servo motor, and perform a predetermined rotating operation according to a control command. The first slide drive mechanism 27 and the second slide drive mechanism 29 also include servo motors, respectively, and perform a predetermined slide operation according to a control command.

The first slide drive mechanism 27 moves the base 15 in the vertical direction [II in the figure]. The second slide driving mechanism 29 moves the first slide moving mechanism 27 in a direction toward and away from the movable mold 5B [I in the figure]. The first arm 21 is in the first rotation mechanism and rotates [II]I in the figure. The second arm 23 rotates by the second rotation mechanism [IV in the figure]. The third arm 25 performs a turning operation and a horizontal turning around two orthogonal axes [V and VI in the figure]. The attitude changing mechanism 10 provided at the tip of the third arm reverses the take-out head 11 [VII in the figure]. By combining these operations, the take-out operation and the carrying operation of the molded product M are realized.

2A and 2B, the take-out head 11 is moved to the vicinity of the molded product M by rotating the first arm 21 to the third arm 25 from the state of FIGS. 1A to 1C. The state immediately before the molded product M is sucked by the suction pad 12 of the take-out head 11 is shown. 2(A) and 3(A), one of the divers 6 is shown by a broken line for easy understanding. After adsorbing the molded product M and taking out the molded product M from the moving side die 5B, as shown in FIGS. 3A and 3B, the first arm 21 to the third arm 25 are rotated. The take-out head 11 is moved to the vicinity of the molded product M and pulled out of the molding die 5.

In the present embodiment, the safety door 7 has a bulging portion 7A that bulges in the lateral direction away from the molding die 5. The bulging portion 7B is an opening portion 7C that opens toward the molding die 5, a frame portion 7D that surrounds the opening portion 7C and is supported by a slide mechanism [see FIGS. 4A and 4B], and an opening portion. A door wall portion 7E facing 7C is provided. 4(A) and 4(B), in order to show the slide mechanism, both side walls of the frame portion 7D of the safety door 7 are removed and the frame portion 7D is drawn transparent. The slide mechanism is composed of a pair of guide rails 8A provided at different intervals in the vertical direction with respect to the side surface of the molding machine 3 and four guide rollers 8B that move while rotating on these guide rails 8A. There is. The four guide rollers 8B are rotatably fixed to the side wall portions of the frame portion 7D near the four corners of the opening 7C of the safety door 7. A cutout portion through which the pair of guide rails 7A pass is formed on a side wall (not shown) of the frame portion 7D of the safety door 7 positioned in the direction in which the guide rake 8A extends. Further, in the present embodiment, the base 29B of the second slide drive mechanism 29 is fixed to the frame portion 7C, and the molded product take-out machine 9 is attached to the frame portion 7C. The safety door 7 causes the molded product take-out machine 9 to interfere with the molding machine 3 when the take-out head 11 of the molded product take-out machine 9 is in the standby position [see FIGS. 5(A) and 5(B) and FIG. 6]. It is configured so that it can be opened without being. In this way, opening and closing the safety door 7 does not damage the parts on the molding machine 3 side and the parts on the molded product unloading machine 9 side. Further, since the molded product take-out machine 9 is mounted on the frame portion 7D supported by the slide mechanism 8, it is possible to suppress the occurrence of vibration during the operation of the molded product take-out machine 9.

With the safety door 7 closed, the configuration of the discharge mechanism for discharging the molded product M taken out from the mold 5 by the molded product unloader 9 to the outside of the safety door 7 is arbitrary. FIG. 7 is a diagram used for explaining an example of the discharging mechanism of the present embodiment. In FIG. 7, the entrance 20 of the discharge passage 19 that constitutes the discharge mechanism together with the molded product take-out machine 9 is formed in one safety door 7. Below the discharge path 19, a belt conveyor 31 that carries out the molded product M is arranged. In this example, the molded product take-out machine 9 retracts the take-out head 11 to a retracted position where it does not interfere with the mold 5 when the mold 5 is closed. 5 to take out the molded product M from the mold 5 [operation shown in FIGS. 2 and 3], and to carry out the molded product M to the inlet 20 of the discharge path 19 [FIG. Following the operation, the retracting operation is performed to bring the take-out head 11 into the retracted state [states of FIGS. 6(A) and 6(B)]. If the molded product take-out machine performs such an operation, even if the molded product take-out machine 9 is arranged inside the safety door 7, the molding operation of the molding machine 3 is not hindered.

8A and 8B and FIGS. 9A and 9B show another discharge mechanism for discharging the molded product M taken out from the molding die 5 by the molded product unloader 9 to the outside of the safety door 7. The configuration of is shown. In this example, the duct 8 having the discharge passage 19 is attached to the outside of the door wall portion 7E of the safety door 7, and the inlet 20 of the discharge passage 19 which constitutes the discharge mechanism together with the molded product take-out machine 9 is attached to the safety door 7. It is formed on the wall portion 7E. Below the discharge path 19 in the duct 8, a belt conveyor 31 that carries out the molded product M is arranged. In this example, the molded product take-out machine 9 inserts the take-out head 11 into the discharge passage 19 in the duct 8 through the inlet 20 next to the take-out operation, then brings the take-out head close to the conveyor belt 31, and The molded product M is placed on the container, and the carrying operation is performed. Providing such a duct 8 outside the safety door 7 makes it easy to apply the present invention to an existing molded article molding system.

FIG. 10 shows another example of the discharge mechanism of the molded product. In this example, two safety doors 7 and 70 are arranged facing the molding die 5. In this example, the molded product take-out machine is attached to the inner wall 7A of the one safety door 7 of the two safety doors 7 and 70, and the discharge mechanism of the discharge mechanism is attached to the door wall portion 70E of the other safety door 70 of the two safety doors. An inlet 200 of the discharge path 190 that constitutes the position is formed. In this example, the duct 80 having the discharge path 190 inside is provided outside the safety door 70. In this case, the molded product take-out machine 9 retracts the take-out head to a position where it does not interfere with the mold 5 when the mold 5 is closed, and when the mold is opened, the take-out head 11 causes the take-out head 11 to remove the molded product from the mold 5. Following the take-out operation for taking out M, a carrying operation for carrying the molded product M to the entrance of the discharge path 190 formed on the other safety door 70 is performed, and a retracting operation for bringing the take-out head 11 into a retracted state following the carrying operation. I do. By doing so, it is possible to increase the number of variacins at the discharge location of the molded product.

FIG. 11 shows still another example of the discharge mechanism of the molded product. In this example, two safety doors 7 and 7 ′ are arranged facing the molding die 5. Then, the molded product take-out machine 9 is attached to the inner wall 7A of the frame portion 7D of the one safety door 7 of the two safety doors 7 and 7', and the other safety door 7'of the two safety doors 7 and 7'is attached. On the inner wall 7'A of the frame portion 7'D, there is attached a carrier 9'for receiving the molded product taken out by the molded product take-out machine 9 by the receiving head 11' and carrying it to the entrance of the discharge path (not shown). The carrier 9'has substantially the same structure as the molded product take-out machine 9. In this example, the discharge path (not shown) is provided in the frame portion 7'D of the other safety door 7', as in the example shown in FIG. In this example, the transport mechanism 9'and a discharge path (not shown) constitute a discharge mechanism. In this case, the molded product take-out machine 9 retracts the take-out head 11 to a position where it does not interfere with the mold 5 when the mold 5 is closed. The take-out operation of taking out the molded product from 5 is carried out, and subsequently the carrying-out operation of passing the molded product to the carrier 9'attached to the other safety door 7'is carried out. Then, the molded product take-out machine 9 performs the retreating operation for putting the take-out head 11 in the retreating state following the carrying operation. Further, the carrier machine 9′ retracts the receiving head 11′ to a position where it does not interfere with the molding die 5 when the molding die 5 is closed, and when the molding die 5 is opened, a receiving operation of receiving a molded product from the take-out head 11. Then, following the receiving operation, a carrying operation for carrying the molded product to the entrance of the discharge path provided on the other safety door 7'is performed, and following the carrying operation, a retracting operation for bringing the receiving head 11' into the retracted state is performed. To do. By providing the carrier 9'on the other safety door 7'in this way, the molded product can be taken out and discharged separately, so that the molded product take-out cycle can be shortened.

In addition, as shown in FIG. 12, the outlet 33 normally provided in the molding machine 3 may be used to supply electric power to the molded product take-out machine 9 and the carrier machine 9 ′ mounted on the safety door. It can be easily applied to a molding machine.

According to the above embodiment, it is not necessary to secure the installation space for the molded product take-out machine 9 above and to the side of the molding machine 3, so that the molding machine 3 and the molded product take-out machine 9 should be installed in a narrow installation space. You can Further, since the molded product take-out machine 9 is attached to the safety door 7, when the molding die 5 is replaced, only opening the safety door 7 does not hinder the molded product take-out machine 9 from exchanging the molding die 5. Can be moved to a position. Further, the present invention can be easily applied to the existing injection molding machine simply by replacing the safety door. Further, even if the molded product take-out machine 9 is arranged inside the safety door 7, if the discharge passage is provided inside or outside the safety door 7, the molded product is discharged to the outside of the molding door without opening the safety door 7. can do.

Further, as shown in FIG. 13, another take-out mechanism 35 for taking out the spool/runner generated at the time of molding may be attached to the base 15. This allows the spool runner to be removed inside the safety door.

In the above embodiment, the take-out mechanism and another take-out mechanism are configured by the multi-axis multi-joint mechanism. However, the Scott-Russell mechanism or the horizontal multi-joint (scalar) mechanism, or those mechanisms are provided with a rotating mechanism. Of course, it may be configured by a combination thereof.

According to the present invention, it is not necessary to secure an installation space for the molded product take-out machine above and to the side of the molding machine, so that the molding machine and the molded product take-out machine can be installed in a narrow installation space. Further, according to the present invention, since the molded article take-out machine is attached to the safety door, when the molding die is replaced, only opening the safety door does not hinder the molded article take-out machine from exchanging the molding die. Can be moved to a position. Further, the present invention can be easily applied to the existing injection molding machine simply by replacing the safety door.

1 Molded product molding system 3 Molding machine 5 Molds 7, 7', 70 Safety door 9 Molded product unloader 11 Extraction head 13 Extraction mechanism 15 Base 17 Base moving mechanism 19 Discharge path 20 Inlet 21 First arm 23 No. 2nd arm 25 3rd arm 27 1st slide drive mechanism 29 2nd slide drive mechanism 31 Belt conveyor 33 Outlet

Claims (10)

A molded article molding system comprising an injection molding machine in which at least one safety door is arranged facing the molding die, and a molded article unloading machine for taking out a molded article from the molding die,
The molded product unloader is attached to the inner wall of the safety door,
A molded product molding system, wherein the molded product unloading machine is provided with a discharge mechanism for discharging the molded product taken out of the mold to the outside of the safety door in a state where the safety door is closed. The inlet of the discharge passage of the discharge mechanism is formed in the at least one safety door,
The molded product unloader retracts the take-out head to a retracted position where it does not interfere with the mold when the mold is closed, and when the mold is opened, the take-out head causes the molded product to be removed from the mold. A take-out operation for taking out the take-out device, a carrying operation for carrying the molded product to the entrance of the discharge path following the taking-out operation, and a retreating operation for bringing the take-out head into the retreating state following the carrying operation. The molded article molding system according to claim 1, which is configured. The at least one safety door consists of two safety doors arranged facing the molding die,
The molded product unloader is attached to the inner wall of one of the two safety doors,
An inlet of the discharge path of the discharge mechanism is formed on the other safety door of the two safety doors,
The molded product take-out machine retracts the take-out head to a position where it does not interfere with the mold when the mold is closed, and when the mold is opened, the take-out head removes the molded product from the mold. A take-out operation, a carrying operation for carrying the molded product to the entrance formed in the other safety door following the taking-out operation, and a retreating operation for bringing the take-out head into the retreating state following the carrying operation. The molded article molding system of claim 1, wherein the molded article molding system is configured to perform. The molded product molding system according to claim 1, wherein the discharge path is configured to discharge the molded product below the safety door. The molded product take-out machine includes a take-out mechanism that moves the take-out head and a base movable mechanism that moves a base on which the take-out mechanism is mounted.
The molded product molding system according to claim 1, wherein the base moving mechanism is mounted on the inner wall of the safety door. The molded product molding system according to claim 5, wherein the base is equipped with another take-out mechanism for taking out a spool/runner generated during molding. The molded product forming system according to claim 6, wherein the take-out mechanism and the another take-out mechanism are configured by a multi-axis multi-joint mechanism. The safety door is configured so that the molding product take-out machine can be opened without interfering with the molding machine when the take-out head of the molding product take-out machine is in the standby position. The molded product molding system described in 1. The safety door includes a bulging portion that bulges in a lateral direction away from the mold.
The bulging portion includes an opening portion that opens toward the molding die, a frame portion that surrounds the opening portion and is supported by a slide mechanism, and a door wall portion that faces the opening portion.
The molded product molding system according to claim 9, wherein the molded product ejector is mounted on the frame portion. The at least one safety door consists of two safety doors arranged facing the molding die,
The molded product unloader is attached to the inner wall of one of the two safety doors,
An inlet of the discharge path of the discharge mechanism is formed on the other safety door of the two safety doors,
On the inner wall of the other safety door, a carrier that receives the molded product taken out by the molded product ejector by a receiving head and conveys it to the inlet of the discharge path is attached as a part of the discharge mechanism,
The molded product take-out machine retracts the take-out head to a position where it does not interfere with the mold when the mold is closed, and when the mold is opened, the take-out head causes the molded product to be ejected from the mold. A take-out operation for taking out the product, a carrying operation for passing the molded product to the carrying machine attached to the other safety door after the taking-out operation, and a retreating operation for bringing the take-out head into the retreating state following the carrying operation. Is configured to
The transporting machine retracts the receiving head to a position where it does not interfere with the molding die when the molding die is closed, and when the molding die is opened, a receiving operation of receiving the molded product from the take-out head, Following the receiving operation, a carrying operation for carrying the molded product to the entrance of the discharge path provided in the other safety door, and a retreating operation for bringing the receiving head into the retreating state following the carrying operation are performed. The molded article molding system according to claim 1, which is configured as described above.

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