CN210139568U - Automatic demoulding mechanism for threads - Google Patents
Automatic demoulding mechanism for threads Download PDFInfo
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- CN210139568U CN210139568U CN201920377259.6U CN201920377259U CN210139568U CN 210139568 U CN210139568 U CN 210139568U CN 201920377259 U CN201920377259 U CN 201920377259U CN 210139568 U CN210139568 U CN 210139568U
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Abstract
The utility model relates to the technical field of dies, in particular to an automatic thread demoulding mechanism, which comprises a die body, wherein the die body comprises a panel, a stripper plate, a pressing plate, a fixed template, a movable template, a first fixed plate, a gear collection plate, a second fixed plate and a bottom plate which are arranged from top to bottom in sequence; the compound wire screw rod is movably arranged in the die body, a compound wire nut is sleeved on the periphery of the compound wire screw rod, a central gear is sleeved on the periphery of the compound wire nut, gear shafts are arranged on two sides of the central gear, the compound wire screw rod is in transmission connection with the compound wire nut, the compound wire nut is in transmission connection with the central gear, and the central gear is in transmission connection with the gear shafts. The utility model has the advantages of simple structure and reasonable design, the operation is orderly, convenient moreover, and the control accuracy is high, novel structure, simple and practical, reliable and stable compares in traditional cylinder drive, and the mechanical structure transmission is steady, and safe and reliable has avoided the pollution of hydro-cylinder oil leak to the environment.
Description
Technical Field
The utility model belongs to the technical field of the mould technique and specifically relates to indicate an automatic demoulding mechanism of screw thread.
Background
As shown in figures 1, 2 and 3, the plastic knob of a certain instrument has the maximum external dimension of □ 57mm multiplied by 33.6mm, the material is PA6+ 30% GF (glass fiber), and the shrinkage rate is 0.6%. The big end of the plastic part is provided with a metal insert, the outer circumference surface is provided with two sections of inverted buckles, and the inner hole is provided with a section of trapezoidal thread. The large end is provided with the metal insert, so that the sprue is not suitable to be close to the large end, and the traditional mold has high difficulty in injection molding of the plastic part, complex structure and poor stability; and the traditional mould opening and demoulding driving mechanism is driven by an oil cylinder, and the environment is easily polluted if the oil is leaked by the oil cylinder.
Disclosure of Invention
The utility model discloses problem to prior art provides an automatic demoulding mechanism of screw thread, simple structure, reasonable in design operate in order, convenient moreover, and the control accuracy is high, novel structure, simple and practical, and is reliable and stable, compares in traditional cylinder drive, and the mechanical structure transmission is steady, and safe and reliable has avoided the pollution of hydro-cylinder oil leak to the environment.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides an automatic thread demoulding mechanism, which comprises a mould body, wherein the mould body comprises a panel, a stripper plate, a pressing plate, a fixed mould plate, a movable mould plate, a first fixed plate, a gear hiding plate, a second fixed plate and a bottom plate which are arranged from top to bottom in sequence; the panel is provided with a sprue bush, the stripper plate is provided with a runner coagulation pipe, the panel is also provided with a stripper rod, the stripper rod penetrates through the panel and the stripper plate, and the bottom end of the stripper rod is connected with the runner coagulation pipe; a fixed mold insert is arranged in the fixed mold plate, a fixed mold core is sleeved in the fixed mold insert, a movable mold insert is arranged in the movable mold plate, and a threaded movable mold core is sleeved in the movable mold insert; a first spring is arranged between the stripper plate and the pressing plate, one end of the first spring is connected with the stripper plate, and the other end of the first spring is connected with the pressing plate;
the mould is characterized in that a rifling screw rod is movably arranged in the mould body, a rifling nut is sleeved on the periphery of the rifling screw rod, a central gear is sleeved on the periphery of the rifling nut, gear shafts are arranged on two sides of the central gear, the rifling screw rod is in transmission connection with the rifling nut, the rifling nut is in transmission connection with the central gear, the central gear is in transmission connection with the gear shafts, the top ends of the gear shafts are connected with square shafts, and the square shafts are sleeved in the threaded movable mould core; the gear shaft movably penetrates through the first fixing plate, the gear hiding plate and the second fixing plate; the die body is also provided with a fixed-distance parting mechanism; the side core-pulling mechanism is arranged on each of two sides of the movable mould plate, the bottom of the panel is provided with a locking block, the locking block penetrates through the stripper plate, the pressing plate and the fixed mould plate, and the locking block is used for being in sliding butt joint with the side core-pulling mechanism; and a second spring is arranged between the movable template and the first fixed plate, one end of the second spring is connected with the movable template, and the other end of the second spring is connected with the first fixed plate.
Wherein, distance typing mechanism includes drag hook, movable block, sliding seat, third spring and ejector pad, the one side at the fixed die plate is installed to the movable seat, the movable seat is provided with and is used for installing the activity chamber of movable block, the one end and the movable block of third spring are connected, and the other end and the bottom in activity chamber of third spring are connected, and the movable block stretches out suddenly the activity chamber, the one end and the first fixed plate of drag hook are connected, the other end of drag hook is provided with the hook position that is used for with movable block cooperation butt, the one end and the panel connection of ejector pad, the other end of ejector pad is provided with first inclined plane, the bottom of movable block be provided with be used for with first inclined plane slip butt complex second inclined plane.
The side core pulling mechanism comprises a sliding block, a side core pulling element and a fourth spring, the sliding block is connected with the side core pulling element, the side core pulling element penetrates through the fixed mold insert and the fixed mold core, one end of the fourth spring is connected with the sliding block, and the other end of the fourth spring is connected with the fixed mold insert; the bottom of locking piece is provided with the third inclined plane, the slider is provided with the fourth inclined plane that is used for with third inclined plane slip butt.
The first fixing plate is provided with a limiting nail, the top end of the limiting nail is provided with a limiting head, the bottom end of the limiting nail is fixedly connected with the first fixing plate, a limiting cavity used for installing the limiting head is formed in the movable template, the limiting head is movably arranged in the limiting cavity, and the bottom of the limiting cavity is provided with a limiting platform which is used for supporting the limiting head.
The bottom plate is provided with a first guide pillar, the first guide pillar movably penetrates through the second fixing plate, the gear hiding plate, the first fixing plate, the movable die plate and the fixed die plate, and a first guide sleeve is sleeved on the periphery of the first guide pillar.
The bottom of the panel is provided with a second guide pillar, the second guide pillar penetrates through the stripper plate, the pressing plate, the fixed die plate, the movable die plate, the first fixed plate and the gear hiding plate, and a second guide sleeve is sleeved on the periphery of the second guide pillar.
The utility model has the advantages that:
the utility model provides a pair of automatic demoulding mechanism of screw thread, simple structure, reasonable in design operate in order, convenient moreover, and the control accuracy is high, novel structure, simple and practical, and is reliable and stable, compares in traditional cylinder drive, and the mechanical structure transmission is steady, and safe and reliable has avoided the pollution of hydro-cylinder oil leak to the environment.
Drawings
Fig. 1 is a front view of a plastic knob.
Fig. 2 is a cross-sectional view of a plastic knob.
Fig. 3 is a top view of the plastic knob.
Fig. 4 is a first perspective sectional view of the automatic thread demoulding mechanism of the present invention.
Fig. 5 is a second perspective sectional view of the automatic thread demoulding mechanism of the present invention.
Fig. 6 is a schematic structural view of an automatic thread demoulding mechanism of the present invention.
The reference numerals in fig. 1 to 6 include:
1-metal insert 2-back-off 3-trapezoidal thread
4-panel 5-stripper plate 6-pressing plate
7-fixed template 8-movable template 9-first fixed plate
10-gear hiding plate 11-second fixing plate 12-bottom plate
13-sprue bush 14-runner condensate pipe 15-stripping rod
16-fixed mold insert 17-fixed mold core 18-movable mold insert
19-thread moving die core 20-first spring 21-rifling lead screw
22-rifling nut 23-central gear 24-gear shaft
25-square shaft 26-locking block 27-second spring
28-draw hook 29-movable block 30-movable seat
34-third spring 35-pushing block 36-movable cavity
37-hook position 38-first inclined plane 39-second inclined plane
40-slider 41-side core-pulling element 42-fourth spring
43-third inclined plane 44-fourth inclined plane 45-limit nail
46-limiting head 47-limiting cavity 48-limiting table
49-first guide post 50-first guide sleeve 51-second guide post
52-second guide sleeve.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention. The present invention will be described in detail with reference to the accompanying drawings.
An automatic thread demoulding mechanism is shown in fig. 1 to 6 and comprises a mould body, wherein the mould body comprises a panel 4, a stripper plate 5, a press plate 6, a fixed mould plate 7, a movable mould plate 8, a first fixed plate 9, a gear hiding plate 10, a second fixed plate 11 and a bottom plate 12 which are sequentially arranged from top to bottom; the panel 4 is provided with a sprue bush 13, the stripper plate 5 is provided with a flow channel coagulation pipe 14, the panel 4 is also provided with a stripper rod 15, the stripper rod 15 penetrates through the panel 4 and the stripper plate 5, and the bottom end of the stripper rod 15 is connected with the flow channel coagulation pipe 14; a fixed mold insert 16 is arranged in the fixed mold plate 7, a fixed mold core 17 is sleeved in the fixed mold insert 16, a movable mold insert 18 is arranged in the movable mold plate 8, and a threaded movable mold core 19 is sleeved in the movable mold insert 18; a first spring 20 is arranged between the stripper plate 5 and the press plate 6, one end of the first spring 20 is connected with the stripper plate 5, and the other end of the first spring 20 is connected with the press plate 6; a rifling screw rod 21 is movably arranged in the die body, a rifling nut 22 is sleeved on the periphery of the rifling screw rod 21, a central gear 23 is sleeved on the periphery of the rifling nut 22, gear shafts 24 are arranged on two sides of the central gear 23, the rifling screw rod 21 is in transmission connection with the rifling nut 22, the rifling nut 22 is in transmission connection with the central gear 23, the central gear 23 is in transmission connection with the gear shafts 24, the top end of the gear shaft 24 is connected with a square shaft 25, and the square shaft 25 is sleeved in the threaded moving die core 19; the gear shaft 24 is movably arranged on the first fixing plate 9, the gear hiding plate 10 and the second fixing plate 11 in a penetrating way; the die body is also provided with a fixed-distance parting mechanism; the side core-pulling mechanisms are arranged on two sides of the movable mould plate 8, the bottom of the panel 4 is provided with a locking block 26, the locking block 26 penetrates through the stripper plate 5, the pressing plate 6 and the fixed mould plate 7, and the locking block 26 is used for being in sliding butt joint with the side core-pulling mechanisms; a second spring 27 is arranged between the movable mould plate 8 and the first fixing plate 9, one end of the second spring 27 is connected with the movable mould plate 8, and the other end of the second spring 27 is connected with the first fixing plate 9.
Specifically, a first parting surface is formed between the stripper plate 5 and the press plate 6, a second parting surface is formed between the panel 4 and the stripper plate 5, a third parting surface is formed between the fixed die plate 7 and the movable die plate 8, and a fourth parting surface is formed between the movable die plate 8 and the first fixed plate 9; the utility model discloses at the during operation, after carrying out injection moulding through the hot nozzle of runner cover 13, stimulate the movable mould die sinking by the injection molding machine, under the effect of distance parting mechanism and first spring 20, the mould body is opened from first parting surface earlier, namely is opened between stripper plate 5 and clamp plate 6, when opening, because under the effect of drawing the material pole, make runner condensate pipe 14 and the some runner department of moulding break by the drawing, realize separating; meanwhile, the plastic back-off 2 is subjected to core-pulling molding through the locking block 26 and the side core-pulling mechanism; then the mould is opened from the second parting surface, the stripper plate 5 pushes the runner condensate pipe 14 away from the material pulling rod, and automatic stripping is realized; then, under a fixed centering parting mechanism, a third parting surface is opened, the fixed template 7 is separated from the fixed template 7, a molded plastic part is separated from the fixed mold core 17 and the cavity, meanwhile, under the action of a rifling screw rod 21, a rifling nut 22 starts to rotate, the gear shaft 24 is driven to rotate through the transmission of a central gear 23, and further, the threaded movable mold core 19 is driven to rotate through a square shaft 25, the fourth parting surface is also opened simultaneously under the action of a second spring 27 in the rotating process of the threaded movable mold core 19, one side of the plastic part is separated from the threaded movable mold core 19, so that the plastic part is slowly separated from the movable template 8 under the pushing of a fixed mold plate, wherein the movable mold insert 18 and the movable mold core always support the plastic part to prevent the plastic part from rotating along with the rotation of the threaded movable mold core 19, and after the parting of the fourth parting surface is stopped, the third parting surface is continuously opened, and the automatic; the utility model has the advantages of simple structure and reasonable design, the operation is orderly, convenient moreover, and the control accuracy is high, novel structure, simple and practical, reliable and stable compares in traditional cylinder drive, and the mechanical structure transmission is steady, and safe and reliable has avoided the pollution of hydro-cylinder oil leak to the environment.
In the embodiment of the automatic thread demoulding mechanism, the distance parting mechanism comprises a draw hook 28, a movable block 29, a movable seat 30, a third spring 34 and a push block 35, the movable seat 30 is arranged at one side of the fixed template 7, the movable seat 30 is provided with a movable cavity 36 for arranging the movable block 29, one end of the third spring 34 is connected with the movable block 29, the other end of the third spring 34 is connected with the bottom of the movable cavity 36, the movable block 29 extends out of the movable cavity 36, one end of the draw hook 28 is connected with the first fixing plate 9, the other end of the draw hook 28 is provided with a hook position 37 which is matched and abutted with the movable block 29, one end of the push block 35 is connected with the panel 4, the other end of the push block 35 is provided with a first inclined plane 38, the bottom end of the movable block 29 is provided with a second inclined surface 39 for sliding abutting fit with the first inclined surface 38.
Specifically, when the distance parting mechanism works, in the initial working process, the hook position 37 of the draw hook 28 abuts against the movable block 29, so that when the movable template 8 moves, the draw hook 28 is driven to drive the fixed template 7 to move downwards, the fixed template 7 and the pressing plate 6 are driven to open, then the first parting surface is driven to open under the action of the first spring 20, after the mold is opened by a preset distance, when the first inclined surface 38 of the push block 35 abuts against the second inclined surface 39 in a sliding manner, the push block 35 pushes the movable block 29 into the movable cavity 36, the third spring 34 is compressed, the hook position 37 is separated from the movable block 29, separation between the fixed template 7 and the movable template 8 is realized, and separation of a molded part from the fixed mold core 17 and the mold cavity is realized.
The automatic thread demoulding mechanism comprises a slider 40, a side core-pulling element 41 and a fourth spring 42, wherein the slider 40 is connected with the side core-pulling element 41, the side core-pulling element 41 is arranged in the fixed mould insert 16 and the fixed mould core 17 in a penetrating manner, one end of the fourth spring 42 is connected with the slider 40, and the other end of the fourth spring 42 is connected with the fixed mould insert 16; the bottom end of the locking piece 26 is provided with a third inclined surface 43, and the sliding block 40 is provided with a fourth inclined surface 44 for sliding abutting against the third inclined surface 43. Specifically, when the fixed die plate 7 and the movable die plate 8 are opened, the locking block 26 moves upwards, the locking block 26 gradually moves away from the sliding block 40, the fourth spring 42 extends to push the sliding block 40 to move outwards, and then the side core pulling piece 41 is pulled outwards, so that core pulling molding of the back-off part 2 of the plastic part is realized.
This embodiment an automatic demoulding mechanism of screw thread, first fixed plate 9 facial make-up is equipped with stop pin 45, stop pin 45's top is provided with spacing head 46, stop pin 45's bottom and first fixed plate 9 fixed connection, be provided with the spacing chamber 47 that is used for adorning spacing head 46 in the movable mould board 8, spacing head 46 activity sets up in spacing chamber 47, and the bottom in spacing chamber 47 is provided with because the spacing platform 48 who withstands spacing head 46. Specifically, the limiting head 46 is in limiting fit with the limiting table 48 in the limiting cavity 47, so that the opening distance between the first fixing plate 9 and the movable die plate 8 is controlled.
In the automatic thread demoulding mechanism of this embodiment, the bottom plate 12 is provided with a first guide pillar 49, the first guide pillar 49 movably penetrates through the second fixing plate 11, the gear hiding plate 10, the first fixing plate 9, the movable mould plate 8 and the fixed mould plate 7, and a first guide sleeve 50 is sleeved on the periphery of the first guide pillar 49. Specifically, the arrangement of the first guide pillar 49 ensures that the direction of the second fixing plate 11, the gear hiding plate 10, the first fixing plate 9, the movable die plate 8 and the fixed die plate 7 is accurate when the fixed die plate slides, the fixed die plate is not easy to deviate, the friction of the first guide sleeve 50 is reduced, and the durability and the service life are improved.
In the automatic thread demoulding mechanism of this embodiment, the bottom of the panel 4 is provided with a second guide pillar 51, the second guide pillar 51 is inserted into the stripper plate 5, the pressing plate 6, the fixed die plate 7, the movable die plate 8, the first fixed plate 9 and the gear hiding plate 10, and a second guide sleeve 52 is sleeved on the periphery of the second guide pillar 51. Specifically, the second guide pillar 51 ensures that the direction of the stripper plate 5, the pressing plate 6, the fixed die plate 7, the movable die plate 8, the first fixed plate 9 and the gear hiding plate 10 during sliding is accurate and not easy to deviate, and the second guide sleeve 52 reduces friction, thereby improving durability and prolonging service life.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention is disclosed in the preferred embodiment, it is not limited to the above description, and any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, but all the technical solutions of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides an automatic demoulding mechanism of screw thread, includes the mould body, its characterized in that: the die body comprises a panel, a stripper plate, a pressing plate, a fixed die plate, a movable die plate, a first fixed plate, a gear hiding plate, a second fixed plate and a bottom plate which are sequentially arranged from top to bottom; the panel is provided with a sprue bush, the stripper plate is provided with a runner coagulation pipe, the panel is also provided with a stripper rod, the stripper rod penetrates through the panel and the stripper plate, and the bottom end of the stripper rod is connected with the runner coagulation pipe; a fixed mold insert is arranged in the fixed mold plate, a fixed mold core is sleeved in the fixed mold insert, a movable mold insert is arranged in the movable mold plate, and a threaded movable mold core is sleeved in the movable mold insert; a first spring is arranged between the stripper plate and the pressing plate, one end of the first spring is connected with the stripper plate, and the other end of the first spring is connected with the pressing plate;
the mould is characterized in that a rifling screw rod is movably arranged in the mould body, a rifling nut is sleeved on the periphery of the rifling screw rod, a central gear is sleeved on the periphery of the rifling nut, gear shafts are arranged on two sides of the central gear, the rifling screw rod is in transmission connection with the rifling nut, the rifling nut is in transmission connection with the central gear, the central gear is in transmission connection with the gear shafts, the top ends of the gear shafts are connected with square shafts, and the square shafts are sleeved in the threaded movable mould core; the gear shaft movably penetrates through the first fixing plate, the gear hiding plate and the second fixing plate; the die body is also provided with a fixed-distance parting mechanism; the side core-pulling mechanism is arranged on each of two sides of the movable mould plate, the bottom of the panel is provided with a locking block, the locking block penetrates through the stripper plate, the pressing plate and the fixed mould plate, and the locking block is used for being in sliding butt joint with the side core-pulling mechanism; and a second spring is arranged between the movable template and the first fixed plate, one end of the second spring is connected with the movable template, and the other end of the second spring is connected with the first fixed plate.
2. The automatic thread stripping mechanism of claim 1, wherein: distance typing mechanism includes drag hook, movable block, sliding seat, third spring and ejector pad, the one side at the fixed die plate is installed to the movable seat, the movable seat is provided with and is used for installing the activity chamber of movable block, the one end and the movable block of third spring are connected, and the other end and the bottom in activity chamber of third spring are connected, and the movable block stretches out suddenly the activity chamber, the one end and the first fixed plate of drag hook are connected, the other end of drag hook is provided with the hook position that is used for with movable block cooperation butt, the one end and the panel of ejector pad are connected, and the other end of ejector pad is provided with first inclined plane, the bottom of movable block is provided with and is used for sliding the second inclined plane of butt complex with first inclined plane.
3. The automatic thread stripping mechanism of claim 1, wherein: the side core pulling mechanism comprises a sliding block, a side core pulling element and a fourth spring, the sliding block is connected with the side core pulling element, the side core pulling element is arranged in the fixed mold insert and the fixed mold core in a penetrating mode, one end of the fourth spring is connected with the sliding block, and the other end of the fourth spring is connected with the fixed mold insert; the bottom of locking piece is provided with the third inclined plane, the slider is provided with the fourth inclined plane that is used for with third inclined plane slip butt.
4. The automatic thread stripping mechanism of claim 1, wherein: the first fixing plate is provided with a limiting nail, the top end of the limiting nail is provided with a limiting head, the bottom end of the limiting nail is fixedly connected with the first fixing plate, a limiting cavity used for installing the limiting head is formed in the movable template, the limiting head is movably arranged in the limiting cavity, and the bottom of the limiting cavity is provided with a limiting table which is used for supporting the limiting head.
5. The automatic thread stripping mechanism of claim 1, wherein: the bottom plate is provided with a first guide pillar, the first guide pillar movably penetrates through the second fixing plate, the gear hiding plate, the first fixing plate, the movable die plate and the fixed die plate, and a first guide sleeve is sleeved on the periphery of the first guide pillar.
6. The automatic thread stripping mechanism of claim 1, wherein: the bottom of the panel is provided with a second guide pillar, the second guide pillar penetrates through the stripper plate, the pressing plate, the fixed die plate, the movable die plate, the first fixing plate and the gear hiding plate, and a second guide sleeve is sleeved on the periphery of the second guide pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920377259.6U CN210139568U (en) | 2019-03-22 | 2019-03-22 | Automatic demoulding mechanism for threads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920377259.6U CN210139568U (en) | 2019-03-22 | 2019-03-22 | Automatic demoulding mechanism for threads |
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| Publication Number | Publication Date |
|---|---|
| CN210139568U true CN210139568U (en) | 2020-03-13 |
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ID=69733103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920377259.6U Active CN210139568U (en) | 2019-03-22 | 2019-03-22 | Automatic demoulding mechanism for threads |
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| Country | Link |
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| CN (1) | CN210139568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940831A (en) * | 2019-03-22 | 2019-06-28 | 广东科技学院 | A kind of Mould of Automatic Separating for Thread mechanism |
| CN111605144A (en) * | 2020-06-02 | 2020-09-01 | 付欢欢 | Novel thread side core-pulling injection mold |
-
2019
- 2019-03-22 CN CN201920377259.6U patent/CN210139568U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109940831A (en) * | 2019-03-22 | 2019-06-28 | 广东科技学院 | A kind of Mould of Automatic Separating for Thread mechanism |
| CN109940831B (en) * | 2019-03-22 | 2024-05-07 | 广东科技学院 | Automatic demoulding mechanism for threads |
| CN111605144A (en) * | 2020-06-02 | 2020-09-01 | 付欢欢 | Novel thread side core-pulling injection mold |
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