阅读说明：本技术 水切割进砂系统 (Water cutting sand feeding system ) 是由 阎文忠 于 2021-01-29 设计创作，主要内容包括：一种水切割进砂系统,它包括储砂箱、顶升机构、支撑架、进砂箱和排砂泵,通过在储砂箱一端下部设置进砂箱,泄砂管与进砂箱和储砂箱的下层砂箱联通,排砂泵位于进砂箱内,顶升机构和支撑架分别位于储砂箱底部两端销轴连接,通过顶升机构驱动储砂箱绕支撑架一端向上转动,进料砂箱内的砂粒泄入过滤砂箱和下层砂箱,下层砂箱内较细的砂粒从泄砂管进入进砂箱内,由排砂泵排出。本发明克服了原水流切割设备较大砂粒进入切割刀降低其使用寿命和切割精度低,影响切割质量的问题,具有结构简单,避免颗粒较大的砂粒进入到进砂箱内,有利于提高切割刀的使用寿命和提高切割精度及质量,操作简单方便的特点。(The utility model provides a sand system is advanced in water cutting, it includes stores up the sand box, climbing mechanism, the support frame, advance sand box and sand pump, through set up into the sand box in storing up sand box one end lower part, let out the sand pipe and advance the sand box and store up the lower floor's sand box UNICOM of sand box, the sand pump is located into the sand box, climbing mechanism and support frame are located the bottom of the sand box both ends pivot connection respectively, drive through climbing mechanism and store up the sand box and upwards rotate around support frame one end, the sand grain in the feeding sand box is let into and is filtered sand box and lower floor's sand box, finer sand grain in the lower floor's sand box gets into the sand box from letting out the sand pipe. The invention overcomes the problems that the service life of the original water flow cutting equipment is shortened when larger sand grains enter the cutting knife, the cutting precision is low, and the cutting quality is influenced, has the characteristics of simple structure, capability of preventing the larger sand grains from entering the sand feeding box, contribution to improving the service life of the cutting knife and the cutting precision and quality, and simple and convenient operation.)

1. The utility model provides a sand system is advanced in water cutting which characterized by: the sand storage device comprises a sand storage box (1), a jacking mechanism (2), a support frame (3), a sand inlet box (4) and a sand discharge pump (5); the jacking mechanism (2) and the support frame (3) are respectively in pin connection with an ear seat (11) at the bottom of the sand storage box (1), a sand discharge pipe (19) communicated with a lower sand box (16) of the sand storage box (1) is communicated with the sand inlet box (4), the sand discharge pump (5) is positioned at the bottom of one end in the sand inlet box (4), the sand discharge pipe (51) extends out of the sand inlet box (4), and the sand inlet box (4) is close to the lower part of one end of the sand storage box (1); the jacking mechanism (2) drives the sand storage box (1) to rotate around one end of the support frame (3) to incline towards one end of the sand inlet box (4);

the jacking mechanism (2) is connected with the controller (6), the surface of the sand storage box (1) is provided with a vibration pump (7), the controller (6) is connected with the vibration pump (7), and the controller (6) is connected with the random counter;

the method comprises the steps that a random counter gives a numerical value which is larger than N or smaller than N at random every S seconds, the numerical value given by the random counter is larger than N, the jacking mechanism (2) moves upwards under the control of a controller, the numerical value given by the random counter is smaller than N, the jacking mechanism (2) moves downwards under the control of the controller, when the stroke of the jacking mechanism (2) reaches the maximum stroke and cannot increase the stroke, a starting signal is sent to a vibration pump (7) by the controller (6), and when the stroke of the jacking mechanism (2) reaches the minimum stroke and cannot decrease the stroke, the starting signal is sent to the vibration pump (7) by the controller (6).

2. The water cutting sand feed system of claim 1, wherein: the sand storage box (1) is of a hollow box structure, the two ends of the box bottom are provided with the lug seats (11), and the sand storage box is separated into a feeding sand box (14), a filtering sand box (15) and a lower sand box (16) by a first filtering plate (12) and a second filtering plate (13) in the box.

3. The water cutting sand feed system of claim 2, wherein: one end of the upper side surface of the sand storage box (1) close to the jacking mechanism (2) is provided with a sand inlet (17) communicated with the feeding sand box (14).

4. The water cutting sand feed system of claim 2, wherein: one end of the lower side surface of the sand storage box (1) close to the support frame (3) is provided with a sand outlet (18) communicated with the lower sand box (16), and the sand outlet (18) is connected with a sand discharge pipe (19).

5. The water cutting sand feed system of claim 2, wherein: the filter holes of the first filter plates (12) are larger than the filter holes of the second filter plates (13).

6. The water cutting sand feed system of claim 2, wherein: one side of the feeding sand box (14) and the filtering sand box (15) is provided with a discharge gate (10), and one end of the discharge gate (10) close to the support frame (3).

7. The water cutting sand feed system of claim 1, wherein: the jacking mechanism (2) is a cylinder or an oil cylinder.

8. The water cutting sand feed system of claim 1, wherein: the support frame (3) is of a frame structure with an upward opening, and two ends of the support frame located at the opening are connected with the ear seats (11) through pin shafts.

9. The water cutting sand feed system of claim 1, wherein: the sand feeding box (4) is of a hollow box body structure, and an observation hole (41) is formed in the top of the sand feeding box.

10. The water cutting sand feed system of claim 9, wherein: a sand flowing table (42) with an inclined structure is arranged in the sand inlet box (4), and the sand discharge pump (5) is positioned at one end, close to the lower end of the sand flowing table (42), in the sand inlet box (4).

Technical Field

The invention belongs to the technical field of water cutting, and relates to a water cutting sand feeding system.

Background

The water cutting equipment utilizes the mixture of water and sand as a medium of a cutting target, and a water flow cutting pump conveys the medium to a cutting knife and then ejects the medium in a high-speed jet flow mode. The existing problem is that sand grains and water are separately stored before the medium is formed, wherein the sand grains are used as main abrasive materials during cutting, the requirements on the grain size and the purity are relatively high, and for example, when the grain sizes are different, the influence on the water cutting knife and the cutting quality is large; when the particles are larger than a set value, the edge of the cutting knife is easy to damage, the service life is reduced, the edge of the cut object is rough, and the precision is low.

Disclosure of Invention

The invention aims to solve the technical problem of providing a water cutting sand inlet system which is simple in structure, a sand inlet box is arranged at the lower part of one end of a sand storage box, a sand outlet pipe is communicated with the sand inlet box and a lower sand box of the sand storage box, a sand discharge pump is arranged in the sand inlet box, a jacking mechanism and a support frame are respectively connected with pin shafts at two ends of the bottom of the sand storage box, the jacking mechanism drives the sand storage box to rotate upwards around one end of the support frame, sand in the sand inlet box is discharged into a filter sand box and the lower sand box, and finer sand in the lower sand box enters the sand inlet box from the sand outlet pipe and is discharged by the sand discharge pump, so that the sand with larger particles is prevented from entering the sand inlet box, the service life of a cutting knife is prolonged, the cutting precision and.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a water cutting sand feeding system comprises a sand storage box, a jacking mechanism, a support frame, a sand feeding box and a sand discharge pump; the jacking mechanism and the support frame are respectively connected with an ear seat pin shaft at the bottom of the sand storage box, a sand discharge pipe communicated with a lower sand box of the sand storage box is communicated with a sand inlet box, a sand discharge pump is positioned at the bottom of one end in the sand inlet box, the sand discharge pipe extends out of the sand inlet box, and the sand inlet box is close to the lower part of one end of the sand storage box; the jacking mechanism drives the sand storage box to rotate around one end of the support frame to incline towards one end of the sand inlet box;

the random counter gives a numerical value which is larger than N or smaller than N at intervals of S seconds, the numerical value given by the random counter is larger than N, the jacking mechanism moves upwards under the control of the controller, the numerical value given by the random counter is smaller than N, the jacking mechanism moves downwards under the control of the controller, when the stroke of the jacking mechanism reaches the maximum stroke and cannot increase the stroke, the controller sends a starting signal to the vibration pump, and when the stroke of the jacking mechanism reaches the minimum stroke and cannot reduce the stroke, the controller sends a starting signal to the vibration pump.

The sand storage box is of a hollow box structure, the two ends of the box bottom are provided with the lug seats, and the sand storage box is arranged in the box body and is separated into a feeding sand box, a filtering sand box and a lower sand box by a first filtering plate and a second filtering plate.

And a sand inlet communicated with the feeding sand box is arranged at one end of the upper side surface of the sand storage box, which is close to the jacking mechanism.

One end of the lower side surface of the sand storage box, which is close to the support frame, is provided with a sand outlet communicated with the lower sand box, and the sand outlet is connected with a sand discharge pipe.

The filter holes of the first filter plate are larger than those of the second filter plate.

One side of the feeding sand box and the filtering sand box is provided with a discharge gate, and the discharge gate is close to one end of the support frame.

The jacking mechanism is a cylinder or an oil cylinder.

The support frame is of a frame structure with an upward opening, and two ends of the support frame, which are positioned at the opening, are connected with the ear seat pin shafts.

The sand feeding box is of a hollow box body structure, and an observation hole is formed in the top of the sand feeding box.

The sand inlet box is internally provided with a sand flowing table with an inclined structure, and the sand discharge pump is positioned at one end of the sand inlet box, which is close to the lower end of the sand flowing table.

A water cutting sand feeding system comprises a sand storage box, a jacking mechanism, a support frame, a sand feeding box and a sand discharge pump; the jacking mechanism and the support frame are respectively connected with an ear seat pin shaft at the bottom of the sand storage box, a sand discharge pipe communicated with a lower sand box of the sand storage box is communicated with a sand inlet box, a sand discharge pump is positioned at the bottom of one end in the sand inlet box, the sand discharge pipe extends out of the sand inlet box, and the sand inlet box is close to the lower part of one end of the sand storage box; the jacking mechanism drives the sand storage box to rotate around one end of the support frame to incline towards one end of the sand feeding box. Simple structure, through set up into the sand box in storage sand box one end lower part, let out the sand pipe and advance the sand box and store up the lower floor's sand box UNICOM of sand box, the sand discharge pump is located into the sand box, climbing mechanism and support frame are located the bottom of the sand box both ends pin hub connection respectively, it upwards rotates around support frame one end to drive storage sand box through climbing mechanism, the sand grain in the feeding sand box lets in and filters sand box and lower floor's sand box, finer sand grain gets into the sand box from letting out the sand pipe in the lower floor's sand box, discharge by the sand discharge pump, avoid the great sand grain of granule to get into in the sand box, be favorable to improving the life of cutting knife and improve cutting accuracy and quality.

In the preferred scheme, the sand storage box is a hollow box structure, the two ends of the box bottom are provided with the lug seats, and the feeding sand box, the filtering sand box and the lower sand box are separated into the box body by the first filtering plate and the second filtering plate. Simple structure, during the use, initial sand material passes first in the filter flask that filters through first filter again in entering into the feed flask, passes the second filter at last and falls into the lower floor's sand box.

In the preferred scheme, one end of the upper side surface of the sand storage box, which is close to the jacking mechanism, is provided with a sand inlet communicated with the feeding sand box. Simple structure, during the use, in initial sand material entered into the sand storage box from advancing the sand mouth, advance the sand mouth and be located the one end that stores up the sand box upside and be close to climbing mechanism, when climbing mechanism upwards jack-up stores up the sand box, be favorable to the sand grain to the other end roll of storing up the sand box.

In preferred scheme, the one end that stores up the sand box downside and be close to the support frame sets up sand outlet and lower floor's sand box UNICOM, and the sand outlet is connected with the sand pipe of letting out. Simple structure, during the use, the sand grain that is located lower floor's sand box is in the slope back of storing up the sand box, enters into the feeding sand box along letting out the sand pipe from the sand outlet.

In a preferred embodiment, the filter holes of the first filter plate are larger than the filter holes of the second filter plate. Simple structure, during the use, the sand grain of great granule is blockked in the feeding sand box by first filter, is located to be blockked in filtering the sand box by the second filter than the sand grain that the filtration pore of second filter is big, and less sand grain passes in the second filter enters into lower floor's sand box.

In a preferred scheme, one side of the feeding sand box and one side of the filtering sand box are provided with a discharge door, and the discharge door is close to one end of the support frame. The sand filtering device has a simple structure, when in use, the sand particles blocked in the feeding sand box and the filtering sand box are accumulated along with time, so that the filtering effect is reduced, and at the moment, the sand particles are discharged by opening the discharging door; when the sand storage box is discharged, the sand storage box is jacked up by the jacking mechanism to be inclined, and the discharge door is arranged at one end close to the support frame, so that sand grains can be inclined towards the end, and the sand grains can be discharged conveniently.

In a preferred scheme, the jacking mechanism is an air cylinder or an oil cylinder. The structure is simple, when the jacking mechanism adopts the cylinder, the telescopic mechanism is fast and sensitive in extension and is suitable for the sand storage box with smaller capacity; when the jacking mechanism adopts the oil cylinder, the jacking mechanism is stable in stretching and retracting and large in jacking force, and is suitable for sand storage boxes with large capacity.

In the preferred scheme, the support frame is a frame structure with an upward opening, and two ends of the support frame positioned at the opening are connected with the ear seat pin shaft. The supporting frame supports one end of the sand storage box and is connected with the lug seat pin shaft at the bottom of the sand storage box in a pin mode, and when the jacking mechanism jacks up the sand storage box, the sand storage box rotates around the supporting frame, so that the sand storage box is in an inclined state.

In a preferred scheme, the sand feeding box is of a hollow box structure, and a viewing hole is formed in the top of the sand feeding box. Simple structure, during the use, the observation hole that is located into the sand box top is used for observing into the sand volume in the sand box, and when the sand volume was less, start climbing mechanism jack-up storage sand box and annotate sand in advancing the sand box.

In a preferred scheme, a sand flowing table with an inclined structure is arranged in the sand inlet box, and the sand discharge pump is positioned at one end, close to the lower end of the sand flowing table, in the sand inlet box. Simple structure, during the use, when sand in the lower sand box entered into the sand box, the higher one end of stream sand platform flowed to lower one end, made the sand grain bury the mouth of pipe of sand discharge pump, avoided the sand discharge pump during operation to appear emptily taking out.

The utility model provides a sand system is advanced in water cutting, it includes stores up the sand box, climbing mechanism, the support frame, advance sand box and sand pump, through set up into the sand box in storing up sand box one end lower part, let out the sand pipe and advance the sand box and store up the lower floor's sand box UNICOM of sand box, the sand pump is located into the sand box, climbing mechanism and support frame are located the bottom of the sand box both ends pivot connection respectively, drive through climbing mechanism and store up the sand box and upwards rotate around support frame one end, the sand grain in the feeding sand box is let into and is filtered sand box and lower floor's sand box, finer sand grain in the lower floor's sand box gets into the sand box from letting out the sand pipe. The invention overcomes the problems that the service life of the original water flow cutting equipment is shortened when larger sand grains enter the cutting knife, the cutting precision is low, and the cutting quality is influenced, has the characteristics of simple structure, capability of preventing the larger sand grains from entering the sand feeding box, contribution to improving the service life of the cutting knife and the cutting precision and quality, and simple and convenient operation.

Drawings

The invention is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of fig. 1.

Fig. 3 is a right-side view of fig. 2.

Fig. 4 is a schematic top view of fig. 2.

Fig. 5 is a schematic cross-sectional view at a-a of fig. 4.

In the figure: the sand box comprises a sand storage box 1, a discharge door 10, an ear seat 11, a first filter plate 12, a second filter plate 13, a feeding sand box 14, a filter sand box 15, a lower layer sand box 16, a sand inlet 17, a sand outlet 18, a sand discharge pipe 19, a jacking mechanism 2, a support frame 3, a sand inlet box 4, a sand discharge pump 5, an observation hole 41, a quicksand table 42, a sand discharge pipe 51, a controller 6 and a vibration pump 7.

Detailed Description

As shown in fig. 1 to 5, a water cutting sand feeding system comprises a sand storage box 1, a jacking mechanism 2, a support frame 3, a sand feeding box 4 and a sand discharge pump 5; the jacking mechanism 2 and the support frame 3 are respectively in pin connection with an ear seat 11 at the bottom of the sand storage box 1, a sand discharge pipe 19 communicated with a lower sand box 16 of the sand storage box 1 is communicated with the sand inlet box 4, the sand discharge pump 5 is positioned at the bottom of one end in the sand inlet box 4, the sand discharge pipe 51 extends out of the sand inlet box 4, and the sand inlet box 4 is close to the lower part of one end of the sand storage box 1; the jacking mechanism 2 drives the sand storage box 1 to rotate around one end of the support frame 3 and tilt towards one end of the sand inlet box 4. The structure is simple, the sand inlet box 4 is arranged at the lower part of one end of the sand storage box 1, the sand discharge pipe 19 is communicated with the sand inlet box 4 and the lower sand box 16 of the sand storage box 1, the sand discharge pump 5 is positioned in the sand inlet box 4, the jacking mechanism 2 and the support frame 3 are respectively positioned at two ends of the bottom of the sand storage box 1 and are in pin joint, the sand storage box 1 is driven by the jacking mechanism 2 to rotate upwards around one end of the support frame 3, sand in the sand inlet box 14 is discharged into the filter sand box 15 and the lower sand box 16, fine sand in the lower sand box 16 enters the sand inlet box 4 from the sand discharge pipe 19 and is discharged by the sand discharge pump 5, and sand with larger particles is prevented from entering the sand inlet box 4, so that the service life of a cutting knife is prolonged;

the random counter randomly gives a numerical value which is larger than N or smaller than N (the N value is 1) every S seconds (3 seconds when the random counter works), the numerical value given by the random counter is larger than N, the jacking mechanism 2 moves upwards under the control of the controller, the numerical value given by the random counter is smaller than N, the jacking mechanism 2 moves downwards under the control of the controller, when the stroke of the jacking mechanism 2 reaches the maximum stroke and cannot increase the stroke, the controller 6 sends a starting signal to the vibration pump 7, when the stroke of the jacking mechanism 2 reaches the minimum stroke and cannot decrease the stroke, the controller 6 sends a starting signal to the vibration pump 7, irregular ascending or descending and vibration of the jacking mechanism 2 are adopted, the position of sand in the sand storage box 1 can be effectively changed, sand hardening is prevented, the problem that the working efficiency of a sand inlet system is lower and lower is solved, and the sorting efficiency is improved;

in a preferred scheme, the sand storage box 1 is of a hollow box structure, the lug seats 11 are arranged at two ends of the box bottom, and the sand storage box is separated into a feeding sand box 14, a filtering sand box 15 and a lower sand box 16 by a first filtering plate 12 and a second filtering plate 13. Simple structure, during the use, initial sand material is at first got into the feeding sand box 14, passes first filter plate 12 and gets into filter flask 15 in, passes second filter plate 13 at last and falls into lower layer sand box 16.

In a preferred scheme, a sand inlet 17 is arranged at one end, close to the jacking mechanism 2, of the upper side surface of the sand storage box 1 and is communicated with the feeding sand box 14. Simple structure, during the use, in initial sand material entered into sand storage box 1 from sand inlet 17, sand inlet 17 was located the one end that sand storage box 1 upside was close to climbing mechanism 2, when climbing mechanism 2 upwards jack-up sand storage box 1, was favorable to the sand grain to roll to the other end of sand storage box 1.

In a preferable scheme, one end of the lower side surface of the sand storage box 1, which is close to the support frame 3, is provided with a sand outlet 18 communicated with the lower sand box 16, and the sand outlet 18 is connected with a sand discharge pipe 19. The structure is simple, when in use, sand in the lower sand box 16 is inclined in the sand storage box 1 and then enters the feeding sand box 14 from the sand outlet 18 along the sand discharge pipe 19.

Preferably, the sand drain 19 is a hose.

Preferably, the filter holes of the first filter plate 12 are larger than the filter holes of the second filter plate 13. Simple structure, during the use, the sand grain of bigger granule is blockked in the feeding sand box 14 by first filter board 12, is located the sand grain that is bigger than the filtration pore of second filter board 13 in filter sand box 15 and is blockked in filter sand box 15 by second filter board 13, and the sand grain that is less passes second filter board 13 and gets into in lower floor's sand box 16.

In a preferred scheme, one side of the feeding sand box 14 and the filtering sand box 15 is provided with a discharge gate 10, and one end of the discharge gate 10 close to the supporting frame 3. The structure is simple, when in use, the sand grains blocked in the feeding sand box 14 and the filtering sand box 15 accumulate along with time, so that the filtering effect is reduced, and at the moment, the sand grains are discharged by opening the discharge door 10; when discharging, jack up the sand storage box 1 through the climbing mechanism 2 and make it be the slope form, arrange the bin gate 10 and set up in the one end that is close to the support frame 3, be favorable to the sand grain to incline to this end, be convenient for discharge.

Preferably, the discharge door 10 is a rectangular door, the two sides of the rectangular door are provided with protruding clamping plates, and the drawing plate and the clamping plates are in sliding fit to close the rectangular door.

In a preferred scheme, the jacking mechanism 2 is a cylinder or an oil cylinder. The structure is simple, when the jacking mechanism 2 adopts a cylinder, the telescopic mechanism is fast and sensitive, and is suitable for the sand storage box 1 with smaller capacity; when the jacking mechanism 2 adopts an oil cylinder, the telescopic structure is stable in stretching and large in jacking force, and is suitable for the sand storage box 1 with large capacity.

In a preferred scheme, the supporting frame 3 is a frame structure with an upward opening, and two ends of the opening are connected with the ear seats 11 through pin shafts. Simple structure, during the use, support frame 3 supports the one end of storing up sand box 1, and with the ear seat 11 pin hub connection of storing up the sand box 1 bottom, when climbing mechanism 2 jack-up stores up sand box 1, stores up sand box 1 and rotates around support frame 3, makes and stores up sand box 1 and be the tilt state.

In a preferred embodiment, the sand feeding box 4 is a hollow box structure, and a viewing hole 41 is arranged at the top. The structure is simple, when the sand filling device is used, the observation hole 41 positioned at the top of the sand inlet box 4 is used for observing the sand amount in the sand inlet box 4, and when the sand amount is less, the jacking mechanism 2 is started to jack up the sand storage box 1 to fill sand into the sand inlet box 4.

In a preferred scheme, a shifting sand table 42 with an inclined structure is arranged in the sand inlet box 4, and the sand discharge pump 5 is positioned at one end of the sand inlet box 4 close to the lower end of the shifting sand table 42. The structure is simple, when in use, when sand in the lower sand box 16 enters the sand inlet box 4, the sand flows from the higher end to the lower end of the sand flow table 42, so that the sand buries the nozzle of the sand discharge pump 5, and the sand discharge pump 5 is prevented from being vacuumized during operation.

If water-feeding cutting sand feeding system, during installation and use, the lower part of one end of the sand storage box 1 is provided with the sand feeding box 4, the sand discharging pipe 19 is communicated with the sand feeding box 4 and the lower sand box 16 of the sand storage box 1, the sand discharging pump 5 is positioned in the sand feeding box 4, the jacking mechanism 2 and the support frame 3 are respectively positioned at two ends of the bottom of the sand storage box 1 and are in pin joint, the jacking mechanism 2 drives the sand storage box 1 to rotate upwards around one end of the support frame 3, sand in the feeding sand box 14 is discharged into the filtering sand box 15 and the lower sand box 16, fine sand in the lower sand box 16 enters the sand feeding box 4 from the sand discharging pipe 19 and is discharged by the sand discharging pump 5, the situation that the sand with larger particles enters the sand feeding box 4 is avoided, the service life of the cutting knife is prolonged.

In use, the initial sand material first enters the feed flask 14, passes through the first matchplate 12 into the filter flask 15, and finally falls through the second matchplate 13 into the drag flask 16.

When the sand storage box is used, initial sand enters the sand storage box 1 from the sand inlet 17, the sand inlet 17 is positioned at one end, close to the jacking mechanism 2, of the upper side of the sand storage box 1, and when the jacking mechanism 2 jacks up the sand storage box 1, sand can roll towards the other end of the sand storage box 1.

In use, sand in the lower sand box 16 is inclined after the sand storage box 1 is inclined, and then enters the feeding sand box 14 from the sand outlet 18 along the sand discharge pipe 19.

In use, larger sand particles are retained by the first matchplate 12 in the feed flask 14, sand particles located in the filter flask 15 larger than the openings of the second matchplate 13 are retained by the second matchplate 13 in the filter flask 15, and smaller sand particles pass through the second matchplate 13 into the drag flask 16.

In use, the accumulation of sand particles that are retained in the feed flask 14 and the filter flask 15 over time reduces their filtering effect, at which point the sand particles are discharged by opening the discharge gate 10; when discharging, jack up the sand storage box 1 through the climbing mechanism 2 and make it be the slope form, arrange the bin gate 10 and set up in the one end that is close to the support frame 3, be favorable to the sand grain to incline to this end, be convenient for discharge.

When the jacking mechanism 2 adopts a cylinder, the jacking mechanism is fast and sensitive in stretching and is suitable for the sand storage box 1 with smaller capacity; when the jacking mechanism 2 adopts an oil cylinder, the telescopic structure is stable in stretching and large in jacking force, and is suitable for the sand storage box 1 with large capacity.

When the sand storage box is used, the supporting frame 3 supports one end of the sand storage box 1 and is in pin connection with the lug seat 11 at the bottom of the sand storage box 1, and when the jacking mechanism 2 jacks up the sand storage box 1, the sand storage box 1 rotates around the supporting frame 3, so that the sand storage box 1 is in an inclined state.

When the sand feeding device is used, the observation hole 41 positioned at the top of the sand feeding box 4 is used for observing the sand amount in the sand feeding box 4, and when the sand amount is small, the jacking mechanism 2 is started to jack the sand storage box 1 to inject sand into the sand feeding box 4.

When the sand inlet device is used, when sand in the lower sand box 16 enters the sand inlet box 4, the sand flows from the higher end to the lower end of the sand flow table 42, so that the sand buries the nozzle of the sand discharge pump 5, and the sand discharge pump 5 is prevented from being empty and pumped during working. The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.