1. A coupling and separating device comprising:
a block which engages an installation member of a launch vehicle and a structure installed on said installation member;
a clamp band which has a strap which holds said block from outside; and
a coupling section which couples or separates end sections of said strap,
wherein said strap comprises shape memory alloy and comprises a stretching section which stretches through heating.
2. The coupling and separating device according to claim 1, wherein said strap comprises a plurality of stretching sections which contain said stretching section.
3. The coupling and separating device according to claim 1, wherein said shape memory alloy comprises TiNi.
4. The coupling and separating device according to claim 1, wherein said end sections of said strap have openings, respectively,
wherein said coupling section comprises:
a pin; and
a driving unit which insets and pulls out said pin into and from said openings, and
wherein said end sections of said strap are coupled by inserting said pin into said openings and said end sections of said strap are separated by pulling out said pin from said openings.
5. The coupling and separating device according to claim 1, further comprising:
a heating section which heats said stretching section.
6. A coupling and separating system comprising:
an installation member which is installed in a launch vehicle and on which a structure is installed;
a coupling and separating device; and
a heating unit which heats a stretching section of said coupling and separating device,
wherein said coupling and separating device comprises:
a block which engages an installation member of a launch vehicle and a structure installed on said installation member;
a clamp band which has a strap which holds said block from outside; and
a coupling section which couples or separates end sections of said strap,
wherein said strap comprises shape memory alloy and comprises a stretching section which stretches through heating.
7. The coupling and separating system according to claim 6, further comprising:
a first sensor which detects a temperature of said stretching section,
wherein said heating unit stops the heating based on a detection result of said first sensor.
8. The coupling and separating system according to claim 6, further comprising:
a second sensor which detects a length of said stretching section,
wherein said heating unit stops the heating based on a detection result of said second sensor.
9. A coupling and separating method which uses a coupling and separating system which couples or separates a structure with or from a launch vehicle, wherein said coupling and separating system comprises:
an installation member which is installed in a launch vehicle and on which said structure is installed;
a coupling and separating device which couples or separates said structure with or from said installation member; and
a heating unit,
wherein said coupling and separating device comprises:
a block which engages said installation member of said launch vehicle and said structure installed in said installation member;
a strap which holds said block from outside; and
a coupling section which couples or separates end sections of said strap,
wherein said strap comprises shape memory alloy and comprises a stretching section which stretches through heating,
wherein said coupling and separating method comprises:
heating said stretching section of said strap by said heating unit to stretch said stretching section, wherein said end sections are coupled in said coupling section; and
separating said end sections in said coupling section after the stretch.
10. The coupling and separating method according to claim 9, wherein said strap comprises a plurality of stretching sections which contain said stretching section,
wherein said heating comprises:
heating said plurality of stretching sections one by one at different timings by said heating unit.
11. The coupling and separating method according to claim 10, wherein said heating said plurality of stretching sections one by one comprises:
heating one of said plurality of stretching sections by said heating unit; and
heating another of said plurality of stretching sections which has not been heated, after the heating of said one stretching section.
12. The coupling and separating system according to claim 6, wherein said strap comprises a plurality of stretching sections which contain said stretching section.
13. The coupling and separating system according to claim 6, wherein said shape memory alloy comprises TiNi.
14. The coupling and separating system according to claim 6, wherein said end sections of said strap have openings, respectively,
wherein said coupling section comprises:
a pin; and
a driving unit which insets and pulls out said pin into and from said openings, and
wherein said end sections of said strap are coupled by inserting said pin into said openings and said end sections of said strap are separated by pulling out said pin from said openings.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A measurement method for injection molding machines which comprises performing a main measurement by rotating in a forward direction a screw with a back-flow prevention valve installed on its tip and rotating said screw in a reverse direction to perform a post-measurement processing after the main measurement process is finished, wherein in said post-measurement process the screw is put in a free-rotation state and moved forward after said main measurement process is finished, the rotational state of said screw during this forward movement being monitored, so that if the rotation of said screw comes to a halt, said screw is rotated in a reverse direction by a specified amount of rotation and wherein said post-measurement process includes a suck-back processing step which moves the screw in the backward direction by a specified stroke after rotating said screw in reverse.
2. The measurement method for molding machines according to claim 1, wherein the screw position after completing said main measurement process and the screw position after rotating said screw in a reverse direction are detected, an amount of correction is obtained from the deviation between said measurement end position and said reverse rotation end position, and the position setting values in at least the injection process are corrected with this amount of correction.
3. The measurement method for molding machines according to claim 1, wherein said halt state is detected by an encoder pulse obtained from a rotary encoder installed with a servo motor for screw rotation which rotates said screw.
4. The measurement method for molding machines according to claim 1, wherein if said halt state is not detected, even when a preset time is reached while monitoring said screw rotation state, specified error processing is performed.
5. The measurement method for molding machines according to claim 1, wherein if said halt state is not detected, even when a preset number of rotations is reached while monitoring said screw rotation state, specified error processing is performed.
6. The measurement method for molding machines according to claim 1, wherein if said halt state is not detected, even when a preset resin pressure is reached while monitoring said screw rotation state, specified error processing is performed.
7. The measurement method for molding machines according to claim 1, wherein when rotating said screw in reverse, control is exercised to fix the fore-and-aft position of said screw.
8. The measurement method for molding machines according to claim 1, wherein when rotating said screw in reverse, control is exercised to fix the pressure of said screw.
9. The measurement method for molding machines according to claim 1, wherein the amount of rotation to rotate said screw in reverse is preset according to the number of rotations of said screw.
10. The measurement method for molding machines according to claim 1, wherein the number of rotations in rotating said screw in reverse is shown on a display.
11. The measurement method for molding machines according to claim 1, wherein the amount of rotation in rotating said screw in reverse is preset according to time.
12. The measurement method for molding machines according to claim 1, wherein the rotation speed in rotating said screw in reverse is shown on a display.
13. The measurement method for molding machines according to claim 9, wherein the number of rotations in rotating said screw in reverse is shown on a display.