CN218983158U - Rotating shaft-free sand box overturning device - Google Patents

Abstract

The utility model relates to a rotating shaft-free sand box overturning device, which comprises two fixing frames, wherein a sand leakage hopper is arranged below the fixing frames between the two fixing frames, two bearing seats are arranged above the fixing frames, a rotating shaft is arranged between the bearing seats, a turning plate is fixedly arranged above the rotating shaft, a fixed hook is arranged above one side close to the sand leakage hopper, a hanging ring is arranged on one side wall far away from the sand leakage hopper, and a counterweight is hung on the hanging ring.

Description

Rotating shaft-free sand box overturning device

Technical Field

The utility model relates to the technical field of lost foam casting sand box overturning devices, in particular to a rotating shaft-free sand box overturning device.

Background

When the lost foam casting process is adopted to produce castings, a negative pressure sand box is an essential key device, and at present, the industry mainly adopts two modes of shakeout, namely the first mode is to take out the sand box with the size basically consistent with that of the castings, the first mode is to mainly adopt a hydraulic type box turner to turn the box, shakeout and discharge a piece, and the second mode is to open a bottom sand leakage door, enable molding sand to flow out, and then take out the castings.

The first method is difficult to turn over the box with larger size and weight, and the second method is difficult to completely clean the sand, and the bottom sand surface adsorbs gasified products of the foamed plastic during casting, so that the sand is sticky, and the sand can agglomerate when the temperature is reduced. Moreover, the sand blocks are stuck on the screen at the bottom of the sand box, and accumulated for a long time, and the sand layer stuck on the bottom is thicker and thicker. Therefore, in order to solve the defects in the prior art, it is necessary to provide a rotating shaft-free sand box overturning device.

Disclosure of Invention

The utility model aims to avoid the defects of the prior art and provide a rotating shaft-free sand box overturning device, which is characterized in that a overturning plate is fixed on a bracket through rotation of an overturning shaft, the overturning plate is kept horizontal through a counterweight, a sand box is hung on the overturning plate through a crown block, the sand box is overturned in a gravity center deviating mode, the overturning angle is large, sand in the sand box can be completely poured out, the problem of overturning sand boxes with different sizes is solved, the sand box overturning device is suitable for sand boxes with various sizes, meanwhile, the overturning angle is large, sand cannot remain in the sand box, the problem that sand blocks burn out castings due to sand residues is solved, and the production efficiency is greatly improved.

The above object of the present utility model is achieved by the following means.

The utility model provides a there is not pivot sand box turning device, including two mounts, install the sand leakage hopper in the below of mount between two mounts, two bearing frames are installed to the top of mount, the interior installation rolling bearing of bearing frame, install the pivot between the rolling bearing, pivot top fixed mounting turns over the board, turns over the board top and installs the sand box, turns over the board and installs the fixed hook in the one side top that is close to the sand leakage hopper, turns over the board and installs the link in the one side lateral wall that keeps away from the sand leakage hopper, hangs the counter weight on the link.

Specifically, the fixing frame is symmetrically installed on two sides of the sand leakage hopper by taking the central line of the sand leakage hopper as a symmetry axis, a rotating opening is formed in one side, close to the sand leakage hopper, of the top surface of the fixing frame, and the bearing seat, the rotating bearing and the rotating shaft are installed on one side, far away from the sand leakage hopper, of the bottom of the turning plate.

Preferably, the bottom of the sand box is provided with sand box bottom wheel groups, the number of the sand box bottom wheel groups is 2, the sand box bottom wheel groups are respectively positioned at two sides of the bottom of the sand box, the top of the sand box is provided with a sand box hanging shaft, and the sand box hanging shaft is positioned in the middle of the top surface of the sand box.

Specifically, the fixed hook comprises a hook opening and a hook back, wherein the hook opening of the fixed hook is positioned at one side far away from the sand leakage hopper, and the hook back is positioned at one side close to the sand leakage hopper.

Further, the overturning angle range of the overturning plate is 0-135 degrees.

According to the utility model, the turning plate is fixed on the bracket through the rotation of the turning shaft and the turning plate is kept horizontal through the counterweight, the sand box is lifted to the turning plate through the crown block, the sand box is turned over through the gravity center deviation mode, the turning angle is large, and the sand in the sand box can be completely poured out.

Drawings

The utility model is further illustrated by the accompanying drawings, which are not to be construed as limiting the utility model in any way.

FIG. 1 is a schematic diagram showing a front view of a turning device for a spindleless flask according to the present utility model.

FIG. 2 is a schematic side view of a pivotal-free flask turning device according to the present utility model.

FIG. 3 is a schematic top view of a pivotal-free flask turning device according to the present utility model.

FIG. 4 is a schematic view of the structure of a holder of a pivotal-free flask turning device according to the present utility model.

FIG. 5 is a schematic view showing the assembly of a fixed hook and a grinding wheel of a turning device for a shaftless flask according to the present utility model

From fig. 1 to 5, it includes:

1. a fixing frame;

2. a sand leakage hopper;

3. a bearing seat;

4. a rotating bearing;

5. a rotating shaft;

6. turning plate;

7. a fixed hook;

8. hanging rings;

9. a counterweight;

10. a rotating port;

11. a sand box bottom wheel set;

12. a sand box hanging shaft;

13. a hook opening;

14. hook back

15. And (5) a sand box.

Detailed Description

The utility model will be further described with reference to the following examples.

Example 1.

As shown in fig. 1-5, a rotating shaft-free sand box turnover device comprises two fixing frames 1, a sand leakage hopper 2 is arranged below the fixing frames 1 between the two fixing frames 1, two bearing seats 3 are arranged above the fixing frames 1, rotating bearings 4 are arranged in the bearing seats 3, a rotating shaft 5 is arranged between the rotating bearings 4, a turning plate 6 is fixedly arranged above the rotating shaft 5, a fixing hook 7 is arranged above one side, close to the sand leakage hopper 2, of the turning plate 6, a hanging ring 8 is arranged on one side wall, far away from the sand leakage hopper 2, of the turning plate 6, and a counterweight 9 is hung on the hanging ring 8.

Two mount 1 share a hourglass sand hopper 2, with the sand leading-in to hourglass sand hopper 2, mount 1 is installed in mount 1 top through bearing frame 3 and slewing bearing 4 rotation with pivot 5, the upset of turning over board 6 is driven through the rotation of pivot 5, thereby the upset of driving sand box 16, the gliding effect of restriction sand box bottom wheelset 11 to hourglass sand hopper 2 one side is played to the fixed hook 7 of being close to one side installation of hourglass sand hopper 2 at the stirring, make sand box bottom wheelset 11 fixed in the inside of fixed hook 7, along with turning over board 6 together overturns, when not placing sand box 16 on turning over board 6, the counter weight 9 that hangs on hanging ring 8 realizes the level and places, counter weight 9 downward pulling turns over board 6 keep away from hourglass sand hopper 2 one side, make the one side bearing that is close to hourglass sand hopper 2 of turning over board 6 in mount 1 top, the opposite side is in unsettled state.

The fixing frame 1 is symmetrically arranged on two sides of the sand leakage hopper 2 by taking the central line of the sand leakage hopper 2 as a symmetry axis, a rotating opening 10 is formed in one side of the top surface of the fixing frame 1, which is close to the sand leakage hopper 2, and the bearing seat 3, the rotating bearing 4 and the rotating shaft 5 are arranged on one side of the bottom of the turning plate 6, which is far away from the sand leakage hopper 2.

The mount 1 is in the bilateral symmetry installation of hourglass sand hopper 2, two sand boxes 16 that two mounts 1 correspond are two sand boxes 16 of equidimension, for satisfying on-the-spot demand customization size, cooperation overhead traveling crane upset when overturning, because of its tilting axis 5 in the top of mount 1, so rotatory scope diminishes for required space diminishes, can not interfere each other between two sand boxes 16, the size of sand box bottom wheelset 11 is the same simultaneously, make turning device can be suitable for the sand box 16 of bigger size, and need not to install pivot 5 in the both sides of sand box 16, it is more convenient to overturn.

The bottom of the sand box 16 is provided with sand box bottom wheel sets 11, the number of the sand box bottom wheel sets 11 is 2, the sand box bottom wheel sets 11 are respectively positioned at two sides of the bottom of the sand box 16, the top of the sand box 16 is provided with a sand box hanging shaft 12, and the sand box hanging shaft 12 is positioned in the middle of the top surface of the sand box 16.

The sand box bottom wheel group 11 is installed in sand box 16 bottom, be equipped with 2 groups, fixed hook 7 and the sand box bottom wheel group 11 that is close to sand leakage 2 one side cooperate and make sand box 16 overturn, sand box hanging axle 12 connects outside overhead traveling crane through rings 13 and carries out rotatable hoist and mount with sand box 16 top, sand box 16 is through self gravity and bearing frame 3, rolling bearing 4 and pivot 5 are installed the design that the bottom of turning over board 6 is close to one side of keeping away from sand leakage 2 makes sand box 16 need not to exert external force on turning over board 6, the focus is partial to sand leakage 2 one side, rethread fixed hook 7 will be close to sand box bottom wheel group 11 of sand leakage 2 one side for sand box 16 is towards sand leakage 2 one side upset, can go out the molding sand.

The fixed hook 7 comprises a hook opening 14 and a hook back 15, the hook opening 14 of the fixed hook 7 is positioned at one side far away from the sand leakage hopper 2, and the hook back 15 is positioned at one side close to the sand leakage hopper 2.

The fixed hook 7 needs to prevent the sand box bottom wheel set 11 from sliding to the sand leakage hopper 2 side, so the hook opening 14 is matched with the sand box bottom wheel set 11 towards the side far away from the sand leakage hopper 2 side, and the hook back 15 is used for limiting and fixing at present.

The turning angle range of the turning plate 6 is 0-135 degrees.

The fixed hook 7 is convenient for quick fixing of the sand box bottom wheel set 11, so the range of the hook opening 14 and the turning plate 6 combined and fixed around the sand box bottom wheel set 11 is 135 degrees, when the hook opening 14 rotates 135 degrees towards the sand leakage hopper 2, the limit maximum rotation angle is reached, and meanwhile, when the turning angle of the turning plate is between 90 degrees and 135 degrees, the residual sand in the sand box 16 can be completely poured out.

According to the utility model, through the characteristics of identical positions and sizes of wheels of the sand boxes 16, the turning plate 6 is fixed on the support through the turning shaft 5, the turning plate 6 is kept horizontal through the counterweight, the sand boxes 16 are hoisted to the turning plate 6 through the crown block, the sand boxes 16 are turned over in a mode of deviating the gravity center, the turning angle is large, and molding sand in the sand boxes 16 can be completely poured out.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (5)

1. The utility model provides a there is not pivot sand box turning device which characterized in that: including two mounts, two be in between the mount the sand leakage hopper is installed to the below of mount, two bearing frames are installed to the top of mount, install rolling bearing in the bearing frame, install the pivot between the rolling bearing, pivot top fixed mounting turns over the board, turn over the board top and install the sand box, turn over the board and be close to the one side top installation fixation hook of sand leakage hopper, turn over the board and be keeping away from the one side lateral wall installation link of sand leakage hopper, hang the counter weight on the link.

2. The spindleless flask turning device of claim 1, wherein: the sand leakage device comprises a sand leakage hopper, a fixing frame, a bearing seat, a rotating bearing, a rotating shaft, a turning plate, a rotating opening, a bearing seat, a rotating shaft and a rotating plate, wherein the fixing frame is symmetrically arranged on two sides of the sand leakage hopper by taking the central line of the sand leakage hopper as a symmetry axis, the rotating opening is formed in one side of the top surface of the fixing frame, which is close to the sand leakage hopper, and the bearing seat, the rotating bearing and the rotating shaft are arranged on one side of the bottom of the turning plate, which is far away from the sand leakage hopper.

3. The spindleless flask turning device of claim 1, wherein: the bottom of sand box is equipped with sand box bottom wheelset, the quantity of sand box bottom wheelset is 2 sets, is respectively for being located the both sides of the bottom of sand box, the top of sand box is equipped with the sand box and hangs the axle, the sand box hangs the axle and is located the middle part position of the top surface of sand box.

4. The spindleless flask turning device of claim 1, wherein: the fixed hook comprises a hook opening and a hook back, wherein the hook opening of the fixed hook is positioned at one side far away from the sand leakage hopper, and the hook back is positioned at one side close to the sand leakage hopper.

5. The spindleless flask turning device of claim 1, wherein: the overturning angle range of the overturning plate is 0-135 degrees.

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