# US 4,391,577 A · Installations for the handling of molds associated with a transfer press > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 4,391,577 A - Document ID: US4391577A - Status: Granted - Kind: A - Application number: 06/347,036 - Filed: 1982-02-08 - Granted: 1983-07-05 - Earliest claimed: 1981-02-10 - Assignees: G. Siempelkamp GmbH & Co. - Inventors: Juan J. Molina Bonillo - Web page: https://patentgrep.com/patent/US4391577A ## CPC - B30B 7/023: {Feeding or discharging means} - B30B: PRESSES IN GENERAL (producing ultra-high pressure or ultra-high pressure and high temperature to effect modifications of a substance, e.g. for making artificial diamonds B01J3/00 ){(compressing means for refuse receptacles B65F1/1405)} ## Abstract This invention relates to improvements of installations for the handling of molds associated with a transfer type press. This installation is characterized in that at each level of the transfer type press (1) and on either side of the latter, there are displacement and guiding (4a, 4b, 4c, 4d) channels for molds (2,3) which are removed from the press (1) for the stripping and loading operations at different distances from that press, which leads to a sufficient separation between the molds. This is applicable to the curing of flat objects. ## Claims ### Claim 1 An apparatus for the handling of the molds of a transfer type press having a plurality of levels comprising channels flanking said press at each level thereof for guiding the displacement of said molds into and out of said press for the stripping and loading of said molds at different distances from said press, whereby the respective molds on any level are offset from the respective molds on any other level. ### Claim 2 (depends on 1) The apparatus defined in claim 1 wherein said molds are arranged in pairs at each level of said press and fixedly spaced apart from one another by a rigid connection therebetween joined midway between hinges provided for the opening of the respective mold cover, each of said mold pairs being subjected to synchronized translational displacement, whereby each mold of said mold pairs is alternately cured and stripped simultaneously on every level. ### Claim 3 (depends on 2) The apparatus defined in claim 2 wherein the respective molds of any mold pair are spaced apart from one another by a distance which is different from the distance between the respective molds of any other mold pair, a respective mold pair on any level being displaced at a speed different from the speed of the displacement of a respective mold pair on any other level, whereby when respective molds of said mold pairs are in registration in said press, the respective remaining molds of said mold pairs are positioned at different distances from said press for enabling the stripping and loading of the respective molds without their mutual interference. ### Claim 4 (depends on 3) The apparatus defined in claim 3 wherein said press is flanked by as many guide channels as there are molds, the respective guide channels on any level having a different length than the respective guide channels on any other level, the lengths of said guide channels increasing starting from the top of said press to the bottom thereof, enabling the molds which have left the press to be positioned in a staggered cascade arrangement, said press being further provided with a frame for supporting said guide channels. ### Claim 5 (depends on 4) The apparatus defined in claim 4, each of said levels further comprising: a respective idler provided at the extremity of each of said guide channels; a respective electric driving pulley mounted on said frame above each idler; and a respective first cable attached to each mold of the respective mold pair and passing around said respective idler into engagement with said respective driving pulley for the displacement of the respective mold into and out of said press. ### Claim 6 (depends on 5) The apparatus defined in claim 5 wherein each of said driving pulleys rotates at the same rate, each set of driving pulleys associated with the same level having the same diameter, said diameter being so chosen so as to displace the respective mold pair over the length of the respective level, a respective set of driving pulleys for any level having a diameter different from the diameter of the respective sets of the other levels. ### Claim 7 (depends on 6) The apparatus defined in claim 6, further comprising an elongated rotatable shaft mounted on said frame above said guide channels and in longitudinal alignment therewith, a plurality of second cables wound on said shaft on one side of said press and a plurality of third cables wound on said shaft on the other side of said press, said second and third cables being in alignment with a ring provided on the cover of the respective molds on that side of said press in the stripping and loading position of the molds, the ends of said second and third cables having hooked shaped extremities adapted to alternately engage said rings for opening the respective molds in the stripping and loading position and disengage said rings for closing the respective molds upon displacement thereof into said press, said second and third cables being wound on said shaft in opposite directions so that any rotation of said shaft will lower one set of cables and raise the other set, and a pair of stops provided at the end of each guide channel for engaging the respective mold thereof in the stripping and loading position, thereby preventing the lifting of the mold from the guide channel when the cover thereof is being opened. ### Claim 8 (depends on 7) The apparatus defined in claim 7, further comprising an elastically mounted microswitch provided at the end of each guide channel and act as a brake for the mold of the respective channel, said microswitch being activated by a cam on said mold for controlling the electric driving pulley associated with said mold.