The portal crane of sand mold casting system
Technical field
The utility model belongs to casting system technical field, relates to sand mold casting system, specifically a kind of portal crane.
Background technology
Applicant knows that in 2012.10.26 to state office has declared a kind of patent of invention of sand mold casting system and authorized, its number of patent application 201210419233.6, this art solutions comprises following process components: count recasting device, parting mould rollover unit, turn over mould liftout attachment, knockout shakes sand device, temperature control and penetrate sand molding device, mould turnover mold closing mechanism.Applicant finds through actual production, and this technical scheme exists following defect: during branch mailbox, and workpiece is stayed in sandbox patrix, not easily deviates from, and affects process flow, reduces production efficiency.
Utility model content
For solving the problems referred to above that prior art exists, the utility model discloses a kind of portal crane of sand mold casting system.
The utility model takes following technical scheme: the portal crane of sand mold casting system, the top of portal crane arranges traveling gear, install walker under traveling gear, several linear bearing is installed in the bottom of walker, traveling gear assembling rotary type reel, reel winding hoist cable, hoist cable is to downward-extension and a pulley is walked around in below, and pulley is installed on cage lifting frame, and guide pillar installed by cage lifting frame, guide pillar is slidably through corresponding linear bearing, and the lower end of guide pillar is provided with pneumatic grapple; Suspension rod installed by cage lifting frame, and the lower end of suspension rod fixedly mounts a plate, and an oscillating cylinder is installed in the below of this plate, under normality, oscillating cylinder is in skewed, and oscillating cylinder can be rocked to vertical position, under oscillating cylinder is in vertical state, the telescopic section of oscillating cylinder towards under.
Described portal crane, traveling gear is provided with several roller, and roller is put on the conduit of factory building frame, and can roll along conduit.
Described portal crane, two bearings are installed on the top of traveling gear, assemble described reel between two bearings.
Described portal crane, reel reels the hoist cable described in two, and two hoist cables are to downward-extension and pulley described in one is respectively walked around in below, and two pulleys are installed on cage lifting frame symmetrically.
Described portal crane, guide pillar has four, and each guide pillar is vertically through the linear bearing described in two.
The utility model ejects workpiece in sandbox patrix by arranging oscillating cylinder, simple and efficient, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is the pneumatic grapple decline constitution diagram of portal crane.
Fig. 2 is the pneumatic grapple propradation figure of portal crane.
Fig. 3 is the pneumatic grapple propradation lower swing cylinder status figure of portal crane.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model preferred embodiment is elaborated.
See Fig. 1-3, the top of the present embodiment portal crane is crane traveling gear 1, and traveling gear 1 is provided with several roller 2, roller 2 is put on the conduit of factory building frame, and can roll along conduit.Under movable motor drives, whole portal crane is walked along conduit.
Install walker 3 under traveling gear 1, four pairs of linear bearings 4 are installed in the bottom of walker 3, and often pair of linear bearing about 4 is laid.
Two bearings 5 are installed on the top of traveling gear 1, rotary type reel 6 is assembled between two bearings 5, reel 6 reels two hoist cables 7, two hoist cables 7 are to downward-extension and a pulley 8 is respectively walked around in below, two pulleys 8 are installed on cage lifting frame 9 symmetrically, reel 6, under the driving of motor, makes cage lifting frame 9 move upward or downward by hoist cable 7.
Four guide pillars 10 installed by cage lifting frame 9, and guide pillar 10 is slidably through being in same two linear bearings 4 vertically, and the lower end of guide pillar 10 is provided with pneumatic grapple 11 as cylinder, and pneumatic grapple 11 can insert the groove of sandbox swage mould.
Several suspension rod 12 is installed at the middle part of cage lifting frame 9, and suspension rod 12 is to downward-extension, and the lower end of suspension rod 12 fixedly mounts a plate 13, and oscillating cylinder 14 is installed in the below of this plate 13, and under normality, oscillating cylinder 14 is in skewed; When sandbox transport so far station time, pneumatic grapple hangs the patrix of sandbox swage, and oscillating cylinder is rocked to vertical position, and its telescopic section ejects workpiece downwards, and patrix is hung this station by portal crane subsequently.In prior art, sandbox patrix stayed by workpiece, is not easy, and operating process comparatively bothers.And the utility model is by oscillating cylinder, efficiently solve this problem.
Those skilled in the art will be appreciated that; above embodiment is only used to the utility model is described; and not as to restriction of the present utility model, as long as in scope of the present utility model, all protection domain of the present utility model will be dropped on to the change of above embodiment, distortion.