Drive for a container processing machine
阅读：740发布：2022-10-29
专利汇可以提供Drive for a container processing machine专利检索，专利查询，专利分析的服务。并且A drive for moving a container processing apparatus at a substantially uniform speed with a line of containers advancing on a conveyor is disclosed in a machine wherein glass bottles are to be pressure tested and the processing apparatus comprises at least one pressure testing head. The pressure testing heads are cyclically swept along a segment of a moving conveyor on which the bottles to be tested are carried and, in order to substantially synchronize the speed of the pressure testing head with the uniform speed of the bottles on the conveyor, the pressure testing head is mounted on the orbiting link of a parallel crank, four bar linkage which is rotated by means of a rotational drive mechanism having an elliptical gear set. The gear set provides a variable drive ratio and, when driven by means of a constant speed motor, modulates the speed of the orbiting link and the pressure heads so that the heads sweep into engagement and accurately track the bottles during the pressure testing portion of the orbit. The elliptical gears also cause the pressure heads to travel along the return portion of the orbit at a more rapid speed in preparation for the next pressure testing cycle.，下面是Drive for a container processing machine专利的具体信息内容。
1. A drive for moving a container processing apparatus along with a container advancing on a conveyor at constant speed and comprising a driven rotating means connected to the processing apparatus for cyclically translating the apparatus along a portion of the conveyor in the direction of movement of the conveyor and container, a drive motor for the rotating means, and a drive train interposed between the motor and rotating means including a variable ratio gear set adapted to substantially match the speed of the processing apparatus with the speed of the container during that portion of the cycle wherein the apparatus is moved in the direction of the conveyor.
2. A drive for moving a container processing apparatus as defined in claim 1 wherein the variable ratio gear set comprises a set of elliptical gears.
3. A drive for moving a container processing apparatus as defined in claim 1 wherein the driven rotating means translates the processing apparatus along a closed path having a tracking segment extending generally along said portion of the conveyor and a return segment located away from the conveyor relative to the tracking segment; and the variable ratio gear set has a cyclically variable ratio and is phased with the driven rotating means to provide faster translation of the processing apparatus along the return segment than along the tracking segment.
4. A drive for moving a container processing apparatus as defined in claim 1 wherein the driven rotating means comprises a parallel-crank four-bar linkage, the movable link connected between the parallel cranks being positioned parallel to the conveyor and supporting the processing apparatus and the parallel cranks being connected to and rotated by the drive train including the variable ratio gear set.
5. A drive for moving a container processing apparatus as defined in claim 4 wherein a resiliently slidable mounting means is interposed between the movable link of the four-bar linkage and the container processing apparatus.
6. A drivE for moving a container processing apparatus as defined in claim 4 wherein the resiliently slidable mounting means comprises two sliding connectors pivotally mounted to the two parallel cranks respectively and the movable link is connected to the parallel cranks by the two sliding connectors.
7. A drive for moving a container processing apparatus as defined in claim 6 wherein the two sliding connectors include resilient members interposed between the movable link and the cranks to permit the movable link to slide resiliently relative to the cranks.
8. A drive for substantially synchronizing the speed of a container processing apparatus momentarily with a container being tracked and moving along a straight path at a constant speed comprising: orbital means supporting the processing apparatus for sweeping the processing apparatus along a segment of the path; and drive means connected to the orbital means for driving the orbital means and the processing apparatus along the segment of the path at a speed substantially synchronized with the article, the drive means including a driving shaft, a driven shaft connected to the orbital means, and a set of elliptical gears coupling the driving shaft to the driven shaft.
9. In a container processing machine which momentarily tracks each of a plurality of containers moving serially along a line of motion past the processing machine on a conveying device at a uniform speed, the improvement comprising: a supporting frame; a first rotatable member mounted to the frame and having an axis of rotation parallel to a line perpendicular to the line of motion of the containers past the processing machine on the conveying device; a tracking head suspended from and orbited by the first rotatable member, the orbit of the tracking head having one portion sweeping the tracking head adjacent a segment of the line of motion past the processing machine; and rotational drive means connected to the first rotational member for rotating the first member and sweeping the tracking head along the one portion of the orbit in the direction of motion of the containers on the conveying device, the rotational drive means including a drive shaft, a driven shaft and a gear set having a cyclically variable gear ratio interposed between the drive shaft and the driven shaft, the driven shaft being connected to rotate the first rotatable member whereby the tracking head is cyclically swept along the one portion of the orbit.
10. The improvement as defined in claim 9 wherein the tracking head comprises a container engaging member.
11. The improvement as defined in claim 9 wherein the tracking head comprises a pressure testing head engageable with the containers.
12. The improvement as defined in claim 9 wherein the tracking head comprises a container enclosure member.
13. The improvement as defined in claim 9 further including positioning means connected with the supporting frame and overlying a part of the line of motion past the machine in advance of said segment to position the articles for registration with the tracking head as the head sweeps adjacent said segment.
14. The improvement as defined in claim 13 wherein the positioning means comprises a rotatable feed worm and means for driving the feed worm synchronously with the drive shaft of the rotational drive means.
15. The improvement as defined in claim 9 including a first parallel-crank, four-bar linkage mounted to the support frame, the first rotatable member being one of the parallel cranks, the orbiting link interconnecting the parallel cranks of the first four-bar linkage being located in parallel relationship with said segment of the line of motion of the containers past the machine and providing a mount for the tracking head.
16. The improvement as defined in claim 15 wherein: second and third parallel-crank four-bar linkages are mounted to the support frame at opposite sides of the line of motion, respectively, and in opposed relationship, the orbiting links of the second and Third linkages being located parallel to said segment of the line of motion; coupling means connect each of the parallel cranks of the second and third four-bar linkages to the rotational drive means for driving the second and third four-bar linkages in synchronism with the first four-bar linkage; and mating engaging members are mounted to the orbiting links of the second and third four-bar linkages.
17. The improvement as defined in claim 16 wherein the mating engaging members are shielding members.
18. The improvement as defined in claim 15 wherein the tracking head comprises a pressurizing head resiliently mounted to the orbiting link of the first four-bar linkage.
19. Apparatus for pressure testing bottles moving along a conveyor at uniform speed comprising: a first parallel-crank, four-bar linkage having an orbiting link connected between the parallel cranks; means for supporting the four-bar linkage adjacent the conveyor with the orbiting link generally parallel to the direction of motion of the bottles; drive means connected to rotate the parallel cranks of the four-bar linkage and move the orbiting link cyclically through a complete orbit and in the direction of motion of the bottles at one portion of the orbit closest to the conveyor, the drive means having elliptical gearing modulating the motion of the orbiting link of the four-bar linkage through each orbit; and pressurizing means mounted to the orbiting link of the four-bar linkage for movement with the orbiting link.
20. Apparatus for pressure testing as defined in claim 19 wherein the pressurizing means comprises a pressure probe resiliently mounted to the orbiting link and having a pressure head engageable with the bottles along said one portion of the orbit closest to the conveyor, and a pressurizing valve connected to the probe; and means are provided for actuating the pressurizing valve to deliver a pressurized fluid to the probe and pressure head while the head is engaged with a bottle.
21. Apparatus for pressure testing as defined in claim 20 wherein the means for actuating comprises a cam mounted to the means for supporting the four-bar linkage and a cam follower mounted on the pressure probe and translated into engagement with the cam by the movement of the orbiting link within said one portion of the orbit closest to the conveyor and by the engagement of the pressure head with a bottle.
22. Apparatus for pressure testing as defined in claim 19 further including a second parallel-crank, four-bar linkage mounted to the means for supporting and having an orbiting link connected to the parallel cranks, the second four-bar linkage being mounted with the orbiting link parallel to the direction of motion of the bottles; means connected between the drive means and the second four-bar linkage for modulating the motion of the orbiting link of the second four-bar linkage in synchronism with the motion of the orbiting link in the first four-bar linkage; and a bottle enveloping shield mounted on the orbiting link of the second four-bar linkage.
23. Apparatus for pressure testing as defined in claim 19 further including means for feeding the bottles serially along the conveyor in phased relationship with the cyclic motions of the orbiting link and the pressurizing means mounted to the link.
24. Apparatus for pressure testing as defined in claim 23 wherein the means for feeding comprises a feed worm having convolutions engaging the bottles and extending longitudinally along the conveyor and means for rotating the feed worm in phased relationship with the cyclic motions of the orbiting link.
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