From 1913 on, Acín was engaged in the Spanish anarquist movement,
particularly in Barcelona and his home region of Aragón. He wrote for
several anarquist magazines in Aragón and Catalonia. Took part in
several congresses of anarquist labour union CGT in Huesca. He was a
non-violent anarquist, and very engaged in workers' education matter's;
e.g., he gave drawing lesson's to workers in evening school courses.
His own artistical works were presented in Madrid in 1931.
Until the beginning of the spanish Second Republic he was imprisioned
several times for his writings and spent some time in the later 1920s
in exile in France. When the spanish Civil War began, Huesca was taken
by nationalist forces soon. Acín and his wife, Conchita Monrás, were
among the many victims of illegal executions at that time. When he won
in the lottery, he gave an amount of money to Luis Buñuel for the
production of "Las Hurdes - Tierra sin pan", that's how he made his way
into film history.