CN109434695B - Sand supply device of water cutting machine and water cutting machine - Google Patents
Sand supply device of water cutting machine and water cutting machine Download PDFInfo
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- CN109434695B CN109434695B CN201811555433.8A CN201811555433A CN109434695B CN 109434695 B CN109434695 B CN 109434695B CN 201811555433 A CN201811555433 A CN 201811555433A CN 109434695 B CN109434695 B CN 109434695B
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- sand
- shaped pipe
- water
- hole
- barrel
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C1/00—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods
- B24C1/04—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass
- B24C1/045—Methods for use of abrasive blasting for producing particular effects; Use of auxiliary equipment in connection with such methods for treating only selected parts of a surface, e.g. for carving stone or glass for cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
- B24C7/00—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts
- B24C7/0007—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a liquid carrier
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Underground Or Underwater Handling Of Building Materials (AREA)
Abstract
The invention relates to the technical field of high-pressure water cutting, and discloses a sand supply device of a water cutting machine and the water cutting machine. Cutting sand is contained in the sand barrel; the U-shaped pipe is placed upside down, and the first end of the U-shaped pipe extends into the sand barrel; the connecting piece is internally provided with a cavity, the second end of the U-shaped pipe is connected to the upper end of the connecting piece and is communicated with the cavity, the cavity is communicated with a cutting head of the water cutting machine, the connecting piece is provided with a water draining hole which is communicated with the cavity and is provided with an upward opening, and a water draining hole upper cover is provided with a blocking cover. When the water cutting machine works, the cavity forms negative pressure, the cover Yu Xieshui holes are blocked, the inner holes of the U-shaped pipe form negative pressure, cutting sand enters the cutting head of the water cutting machine, and then the plate is cut. When the water valve is closed, part of the water in the cutting head flows back into the cavity of the connecting piece, and then the flowing-back water enters the water drain hole to push the blocking cover open, and is discharged from the water drain hole. After closing, the backflow water can not enter the sand barrel, and the cut sand can not be damped and agglomerated.
Description
Technical Field
The invention relates to the technical field of high-pressure water cutting, in particular to a sand supply device and a water cutting machine.
Background
The quality of the quartz products such as stone and glass is hard, and in order to prevent a large amount of dust from being generated during cutting, water cutters are adopted for cutting in most cases. When the water cutting machine is used for cutting, cutting sand is doped in high-pressure water, and the material of the cutting sand is similar to the particle material on the grinding wheel. The high-pressure water cutter head is connected with the sand supply device, and when the high-pressure water is ejected, negative pressure is generated to suck out the cutting sand to mix the cutting sand with the water, so that the stone is cut together.
The traditional sand supply device generally utilizes the gravity principle, and a switch is arranged at the lowest part of the sand supply device to manage whether sand leakage or no sand leakage occurs. The switch is controlled by the water cutting machine in a unified way, and is switched on together with high-pressure water, so that when the water cutting is turned off, water in the high-pressure spray head easily flows back into the sand supply device, cut sand is damped and agglomerated, and the sand cannot be normally supplied when the water cutting machine is used next time. Resulting in the water cutting machine not cutting normally.
Therefore, a sand supply device of a water cutting machine and the water cutting machine are needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a sand supply device of a water cutting machine and the water cutting machine, which can prevent water in a high-pressure gun from flowing back into a sand barrel.
To achieve the purpose, the invention adopts the following technical scheme:
a sand supply device of a water cutting machine, comprising:
The sand barrel is internally provided with cutting sand;
the U-shaped pipe is placed upside down, and the first end of the U-shaped pipe extends into the sand barrel;
The connecting piece, be provided with the cavity in the connecting piece, the second end of U type pipe connect in the upper end of connecting piece, and with the cavity is linked together, the cavity intercommunication is in the cutting head of water cutting machine, be provided with on the connecting piece with the cavity intercommunication, and the ascending wash port of opening, the wash port upper cover is equipped with the fender lid.
Preferably, the number of the water draining holes is multiple, the openings of the water draining holes are annularly arranged at the second end of the U-shaped pipe, and the blocking cover is sleeved at the second end of the U-shaped pipe and can move up and down relative to the connecting piece.
Preferably, the chamber is tapered with the tip of the cone facing downwards.
Preferably, the barrel bottom of the sand barrel is detachably fixed on the barrel body of the sand barrel, the barrel bottom is sleeved at the first end of the U-shaped pipe, a first feeding hole is formed in the side wall of the first end of the U-shaped pipe, and the feeding hole of the first feeding hole is located in the sand barrel.
Preferably, the device further comprises an adjusting rod, the adjusting rod is screwed at the first end of the U-shaped pipe and extends into the inner hole of the U-shaped pipe, and the adjusting rod can adjust the opening and closing degree of the first feeding hole.
Preferably, the inner hole of the first end of the U-shaped pipe is a stepped hole, one end with larger aperture is located at the end part of the first end, the first feeding hole is located on the side wall of one end with larger aperture of the stepped hole, the adjusting rod stretches into the inner hole of one end with larger aperture of the stepped hole, one end with smaller aperture of the stepped hole is a conical opening, and the end part of the adjusting rod is a conical tip matched with the conical opening.
Preferably, the adjusting rod is provided with a groove in a ring mode, a sealing ring is embedded in the groove, and the outer peripheral surface of the sealing ring is propped against the inner wall of the first end of the U-shaped pipe.
Preferably, an end cover is arranged at the top of the sand barrel, and a second feeding hole is arranged on the end cover.
Preferably, the second feeding hole is provided with a feeding pipe in a penetrating way, and the feeding pipe partially extends into the sand barrel; and the end cover is provided with a vent hole.
A water cutting machine comprising a sand supply device of the water cutting machine as described above.
The invention has the beneficial effects that: the cutting head of the water cutting machine is opened, water is sprayed by the cutting head, a cavity in the connecting piece is in a negative pressure (relative to atmospheric pressure) state, the opening of the hole of the cover Yu Xieshui is blocked, the inner hole of the U-shaped pipe is further in a negative pressure state, cutting sand enters the U-shaped pipe, enters the cutting head through the cavity of the connecting piece, and then the plate is cut. After the cutting head is closed, as the U-shaped pipe, the cavity of the connecting piece and the connecting pipe are in a negative pressure state, part of water in the cutting head participates in the cavity of the connecting piece and flows back to the cavity of the connecting piece, then the water in the cavity of the connecting piece enters the water draining hole and can jack the blocking cover open, and the returned water is discharged from the water draining hole and can supplement pressure for the U-shaped pipe, so that the air pressure in the U-shaped pipe is balanced with the atmospheric pressure. After the cutting head is closed, the return water cannot enter the sand barrel, so that the cut sand in the sand barrel cannot be damped and agglomerated due to the return water.
Furthermore, according to the sand amount required by the cutting head and the material to be cut, the adjusting rod can be rotated to adjust the sand feeding amount of the first feeding hole in unit time.
When the cutting sand in the sand barrel is wetted and agglomerated and can not be used for a long time, the barrel bottom can be detached, and the cutting sand in the sand barrel can be completely poured out. The dried cut sand is then reloaded.
Drawings
FIG. 1 is a schematic view of a sand supply device according to the present invention;
FIG. 2 is a cross-sectional view of a sand supply apparatus provided by the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
Fig. 4 is a partially enlarged view at B in fig. 2.
In the figure: 1. a sand barrel; 2. a U-shaped tube; 21. a first feed hole; 3. a connecting piece; 31. a chamber; 32. a water discharge hole;
4. a blocking cover; 5. an adjusting rod; 6. an end cap; 7. a feed pipe; 8. a barrel bottom; 9. an aeration nozzle; 10. a connecting pipe; 11. screwing the nut; 12. a fixing nut; 13. a seal ring; 14. and a gasket.
Detailed Description
The technical scheme of the invention is further described below by the specific embodiments with reference to the accompanying drawings. The embodiment discloses a water cutting machine, which comprises a cutting head and a high-pressure water supply device, wherein quartz sand and the like are mixed into high-pressure water to cut a plate together because the plate to be cut is hard in texture. Thus, the water cutter further comprises a sand supply device for supplying cutting sand to the cutting head.
The concrete structure of the sand supply device is shown in fig. 1 to 4, and the sand supply device comprises a sand barrel 1, a U-shaped pipe 2, a connecting piece 3, a baffle cover 4 and an adjusting rod 5.
Wherein, sand drum 1 is used for holding cutting sand, supplies the cutting head to use. The top of the sand barrel 1 is provided with an end cover 6, the U-shaped pipe 2 is placed upside down, and the first end of the U-shaped pipe 2 penetrates through the end cover 6 and stretches into the sand barrel 1.
The connecting piece 3 is internally provided with a cavity 31, the second end of the U-shaped pipe 2 is connected to the upper end of the connecting piece 3 and is communicated with the cavity 31, the cavity 31 is communicated with the cutting head through the connecting pipe 10, the connecting piece 3 is provided with a water draining hole 32 which is communicated with the cavity 31 and is provided with an upward opening, and a blocking cover 4 is arranged on the upper cover of the water draining hole 32.
The upper end of connecting piece 3 is provided with the intercommunication mouth, and the second end of U type pipe 2 passes the intercommunication mouth and stretches into in the cavity 31, and cavity 31 is the toper, and the awl point sets up down, and the cutting sand that is convenient for get into in the cavity 31 flows down. The drain hole 32 is a through hole vertically provided at the outer periphery of the communication port, and the drain hole 32 communicates the chamber 31 with the atmosphere. The number of the water discharge holes 32 is plural, and the water discharge holes 32 are uniformly distributed around the communication port. The blocking cover 4 is sleeved at the second end of the U-shaped pipe 2 and can move up and down relative to the connecting piece 3, and is covered on the drain hole 32 under the action of gravity.
The end cover 6 is provided with a second feeding hole, the second feeding hole is provided with a feeding pipe 7 in a penetrating mode, and the feeding pipe 7 partially stretches into the sand barrel 1. The inlet pipe 7 is connected in the feed vat, and the cutting sand in the feed vat can flow to in the sand vat 1 under the action of gravity, and when the horizontal plane height of the cutting sand in the sand vat 1 exceeded the height of the discharge gate of inlet pipe 7, the cutting sand can't flow to in the sand vat 1, and the automatic stop is to the feeding in the sand vat 1. The end cover 6 is also provided with a vent hole, the vent hole is connected with a vent nozzle 9, and the vent nozzle 9 is provided with a plurality of small holes communicated with the vent hole. When the vent hole and the vent nozzle 9 are arranged to enable the cutting sand to descend, the inside of the sand barrel 1 is always at the atmospheric pressure, and no negative pressure is formed so that the cutting sand can not descend.
The barrel bottom 8 of the sand barrel 1 is detachably fixed on the barrel body of the sand barrel 1, the barrel bottom 8 is conical, and the tip end of the barrel bottom 8 is downwards arranged. The outer diameter of the first end of the U-shaped pipe 2 is in a ladder shape, the outer diameter is smaller and is positioned at the end part, and external threads are arranged on the peripheral surface. The gasket 14 is sleeved on the part with the smaller outer diameter, the barrel bottom 8 is sleeved on the part with the smaller outer diameter, the screwing nut 11 is screwed on the part with the smaller outer diameter, and the barrel bottom 8 is fixed, so that two sides of the gasket 14 are respectively abutted against the step surface and the inner side surface of the barrel bottom 8. The side wall of the first end of the U-shaped pipe 2 is provided with a first feeding hole 21, and the feeding hole of the first feeding hole 21 is positioned in the sand barrel 1, namely, the first feeding hole 21 is arranged on the part with larger outer diameter of the first end of the U-shaped pipe 2.
The inner hole of the first end of the U-shaped pipe 2 is provided with an inner thread, the adjusting rod 5 is provided with an outer thread, the adjusting rod 5 is screwed at the first end of the U-shaped pipe 2 and stretches into the inner hole of the U-shaped pipe 2, the adjusting rod 5 can adjust the opening and closing degree of the first feeding hole 21, and then the sand feeding amount of the U-shaped pipe 2 is adjusted. The inner hole of the first end of the U-shaped pipe 2 is a stepped hole, the larger-aperture end is positioned at the end part of the first end, and the first feeding hole 21 is positioned on the side wall of the larger-aperture end of the stepped hole. The internal thread is positioned on the part with larger bore diameter of the inner bore, and the adjusting rod 5 extends into the inner bore of one end with larger bore diameter of the stepped hole. The adjusting rod 5 is screwed with a fixing nut 12, and after the opening and closing degree of the first feeding hole 21 is adjusted by the adjusting screw, the adjusting rod 5 is fixed by the fixing nut 12, and at this time, one end face of the fixing nut 12 is abutted against the end face of the first end of the U-shaped pipe 2. The smaller one end of aperture of shoulder hole is the toper mouth, and the tip of adjusting the pole 5 is for the toper point with toper mouth assorted, sets up like this and makes the cutting sand in the sand bucket 1 enter into in the U type pipe 2 more easily, can also adjust the pole 5 smoothly when not using and make the pole 5 seal the hole of first feed port 21 and U type pipe 2 all.
The adjusting rod 5 is provided with a groove in a surrounding mode, the groove is internally provided with a sealing ring 13, the outer peripheral surface of the sealing ring 13 is propped against the inner wall of the first end of the U-shaped pipe 2, the sealing ring 13 can seal a gap between the adjusting rod 5 and the U-shaped pipe 2, and the high-pressure gun can absorb cutting sand in the sand barrel 1 without air leakage.
The working process of the sand supply device comprises the following steps: the cutting head is opened, water is sprayed from the cutting head, the cavity 31 in the connecting piece 3 is in a negative pressure (relative to the atmospheric pressure) state, the blocking cover 4 covers the opening of the water discharge hole 32, the inner hole of the U-shaped pipe 2 is further in a negative pressure state, cutting sand enters the U-shaped pipe 2 from the first feeding hole 21 of the U-shaped pipe 2 and then enters the connecting piece 3, enters the cutting head through the connecting pipe 10, and then the plate is cut. After the cutting head is closed, as the U-shaped pipe 2, the cavity 31 of the connecting piece 3 and the connecting pipe 10 are in a negative pressure state, part of water in the cutting head of the water cutting machine flows back to the cavity 31 of the connecting piece 3 through the connecting pipe 10, then the water in the cavity 31 of the connecting piece 3 can enter the water draining hole 32 to jack the blocking cover 4, and the returned water is discharged from the water draining hole 32 and can supplement the pressure of the U-shaped pipe 2, so that the air pressure in the U-shaped pipe 2 is balanced with the atmospheric pressure. After the cutting head is closed, the return water cannot enter the sand barrel 1, and cut sand in the sand barrel 1 cannot be damped and agglomerated due to the return water.
According to the required sand amount of the cutting head and the material to be cut, the adjusting rod 5 can be rotated to adjust the sand feeding amount of the first feeding hole 21 in unit time.
When the cutting sand in the sand barrel 1 is wetted and agglomerated and can not be used for a long time, the barrel bottom 8 can be detached, and the cutting sand in the sand barrel 1 can be completely poured out. The dried cut sand is then reloaded.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (8)
1. A sand supply device of a water cutting machine, comprising:
the sand barrel (1) is internally provided with cutting sand;
the sand barrel comprises a U-shaped pipe (2), wherein the U-shaped pipe (2) is placed upside down, and the first end of the U-shaped pipe (2) stretches into the sand barrel (1);
The connecting piece (3), be provided with cavity (31) in connecting piece (3), the second end of U type pipe (2) connect in the upper end of connecting piece (3), and with cavity (31) are linked together, cavity (31) are linked together in the cutting head of water cutting machine, be provided with on connecting piece (3) with cavity (31) intercommunication and opening ascending wash port (32), wash port (32) upper cover is equipped with shield cover (4);
the barrel bottom (8) of the sand barrel (1) is detachably fixed on the barrel body of the sand barrel (1), and the barrel bottom (8) is sleeved at the first end of the U-shaped pipe (2);
the inner hole at the first end of the U-shaped pipe (2) is a stepped hole, the outer diameter of the U-shaped pipe is smaller and is positioned at the end part, an external thread is arranged on the peripheral surface of the U-shaped pipe, a gasket (14) is sleeved on the part with the smaller outer diameter, the barrel bottom (8) is sleeved on the part with the smaller outer diameter, and a screwing nut (11) is screwed on the part with the smaller outer diameter;
a first feeding hole (21) is formed in the side wall of the first end of the U-shaped pipe (2), and a feeding hole of the first feeding hole (21) is positioned in the sand barrel (1);
the sand supply device further comprises an adjusting rod (5), the adjusting rod (5) is screwed at the first end of the U-shaped pipe (2) and extends into the inner hole of the U-shaped pipe (2), and the opening and closing degree of the first feeding hole (21) can be adjusted by the adjusting rod (5);
The U-shaped pipe is characterized in that one end of the first end of the U-shaped pipe (2) with larger inner hole diameter is located at the end of the first end, the first feeding hole (21) is located on the side wall of one end of the stepped hole with larger inner hole diameter, and the adjusting rod (5) extends into the inner hole of one end of the stepped hole with larger inner hole diameter.
2. The sand supply device according to claim 1, wherein the number of the water discharge holes (32) is plural, the openings of the water discharge holes (32) are annularly arranged at the second end of the U-shaped pipe (2), and the blocking cover (4) is sleeved at the second end of the U-shaped pipe (2) and can move up and down relative to the connecting piece (3).
3. A sand supply according to claim 1, characterized in that the chamber (31) is conical and the cone tip is arranged downwards.
4.A sand supply device according to claim 1, characterized in that the end of the stepped bore with smaller bore diameter is a conical mouth, and the end of the adjusting rod (5) is a conical tip matching the conical mouth.
5. The sand supply device according to claim 1, wherein a groove is formed in the adjusting rod (5) in a surrounding manner, a sealing ring (13) is embedded in the groove, and the outer circumferential surface of the sealing ring (13) is abutted against the inner wall of the first end of the U-shaped pipe (2).
6. A sand supply according to claim 1, characterized in that the top of the sand drum (1) is provided with an end cap (6), the end cap (6) being provided with a second feed hole.
7. A sand supply device according to claim 6, characterized in that the second feed hole is perforated with a feed pipe (7), which feed pipe (7) extends partly into the sand drum (1); and the end cover (6) is provided with a vent hole.
8. A water cutting machine comprising a sand supply device of the water cutting machine according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555433.8A CN109434695B (en) | 2018-12-18 | 2018-12-18 | Sand supply device of water cutting machine and water cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555433.8A CN109434695B (en) | 2018-12-18 | 2018-12-18 | Sand supply device of water cutting machine and water cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109434695A CN109434695A (en) | 2019-03-08 |
| CN109434695B true CN109434695B (en) | 2024-06-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811555433.8A Active CN109434695B (en) | 2018-12-18 | 2018-12-18 | Sand supply device of water cutting machine and water cutting machine |
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| Country | Link |
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| CN (1) | CN109434695B (en) |
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| Publication number | Publication date |
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| CN109434695A (en) | 2019-03-08 |
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