CN115383635A

CN115383635A - Sand blasting and shot blasting equipment

Info

Publication number: CN115383635A
Application number: CN202210982503.8A
Authority: CN
Inventors: 王和平
Original assignee: Xiangtan Huifeng Equipment Manufacturing Co ltd
Current assignee: Xiangtan Huifeng Equipment Manufacturing Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-25
Anticipated expiration: 2042-08-16
Also published as: CN115383635B

Abstract

The invention discloses sand blasting and shot blasting equipment which comprises a storage tank for storing abrasive materials, an output device connecting piece, an air supply assembly, a pipeline system and a material conveying ball valve, wherein the output device connecting piece is used for outputting the abrasive materials and is connected with an output device; defeated material ball valve is including the valve body that is used for the abrasive material to pass through with the discharge end of storage tank and the first input intercommunication of connecting piece respectively, lay and be used for rotating the spheroid that closes or open the valve body in the valve body and be used for controlling the spheroid rotation with the valve rod of closing or opening the valve body be connected with the spheroid, defeated material ball valve is still including laying in the feeding one side of valve body inner chamber and being the first guide hopper that the toper was laid, the main aspects of first water conservancy diversion hopper is connected with the feed end of valve body, the tip of first guide hopper is used for laying with spheroidal feed inlet correspondence.

Description

Sand blasting and shot blasting equipment

Technical Field

The invention relates to the technical field of part surface treatment equipment, in particular to sand-blasting shot-blasting equipment.

Background

The sand blasting and shot blasting equipment is part surface treating equipment with compressed air to drive abrasive to pass through an output device and to be sprayed on the surface of a part at high speed, so that the surface of the part forms a strengthening layer under the impact of the abrasive.

The prior sand blasting and shot blasting equipment generally comprises a storage tank, an output device, an air supply assembly, a material conveying ball valve and other components arranged between the storage tank and the air supply assembly, wherein the material conveying ball valve is rotated to open so that abrasive materials penetrate through the material conveying ball valve to enter the output device during operation, and meanwhile, compressed air is introduced into the air supply assembly so that the abrasive materials are sprayed out at a high speed.

However, in the process of the abrasive entering and exiting the material conveying ball valve, the abrasive is easy to impact and wear the material conveying ball valve, so that the material conveying ball valve is damaged, and the material conveying ball valve needs to be frequently replaced; meanwhile, the grinding materials can be clamped around the material conveying ball valve, the material conveying ball valve cannot be closed or opened correctly, maintenance personnel are required to clean and maintain frequently, and manpower and material resources are greatly wasted.

Disclosure of Invention

The invention provides sand blasting and shot blasting equipment, which aims to solve the technical problem that a material conveying ball valve in the existing sand blasting and shot blasting equipment is easily damaged by impact of abrasive materials and blocked.

According to one aspect of the invention, a sand blasting and shot blasting device is provided, which comprises a storage tank for storing abrasive, an output device connecting piece for outputting the abrasive and connected with the output device, an air supply assembly for supplying compressed air to pressurize an inner cavity of the storage tank, a pipeline system which is respectively communicated with the storage tank, the air supply assembly and the connecting piece and is used for transmitting the compressed air, and a material conveying ball valve which is respectively communicated with the storage tank and the connecting piece and is used for controlling the flow of the abrasive; defeated material ball valve is including the valve body that is used for the abrasive material to pass through with the discharge end of storage tank and the first input intercommunication of connecting piece respectively, lay and be used for rotating the spheroid that closes or open the valve body in the valve body and be used for controlling the spheroid rotation with the valve rod of closing or opening the valve body be connected with the spheroid, defeated material ball valve is still including laying in the feeding one side of valve body inner chamber and being the first guide hopper that the toper was laid, the main aspects of first water conservancy diversion hopper is connected with the feed end of valve body, the tip of first guide hopper is used for laying with spheroidal feed inlet correspondence.

As a further improvement of the technical scheme:

furthermore, the material conveying ball valve further comprises a second material guiding hopper which is arranged in the valve body in a conical manner, the small end of the second material guiding hopper is used for being arranged corresponding to the discharge port of the ball body, and the large end of the second material guiding hopper is connected with the discharge end of the valve body.

Further, the clearance between the small end of the first material guide hopper and the spherical surface of the sphere is less than 0.8mm; and/or the clearance between the small end of the second material guiding hopper and the spherical surface of the sphere is less than 0.8mm.

Further, the storage tank also comprises a feeding hopper used for enabling the abrasive to enter the storage tank and a sealing element which is correspondingly arranged at the discharge end of the feeding hopper and communicated with the pipeline system and used for sealing the discharge end of the feeding hopper under the driving of the impact of the compressed air.

Further, radial both sides on the storage tank are equipped with first pipeline installation seat and second pipeline installation seat respectively, pipe-line system is including installing on first pipeline installation seat and second pipeline installation seat and with the sealed pipeline of air feed subassembly intercommunication, sealed pipeline is including laying the first three way connection in the storage tank, install on first pipeline installation seat and respectively with the first joint of first three way connection and the sealed gas-supply pipe of air feed subassembly intercommunication, install on the second pipeline installation seat and with the sealed stay tube of the second articulate of first three way connection and with the third joint intercommunication of first three way connection and with the sealed outlet duct of sealing member movably grafting complex.

Furthermore, the sealing element comprises a conical plug arranged corresponding to the discharge end of the feeding hopper, a movable support rod formed by axially and downwardly extending the middle part of the plug and movably spliced and matched with the sealing air outlet pipe, and a gas collecting hood formed by axially and downwardly extending the edge of the plug and radially and outwardly inclining the edge of the plug.

Further, the sealing air pipe is detachably connected with a first joint of the first three-way joint.

Further, the air supply assembly comprises an air compressor used for compressing air, an air storage tank communicated with the air compressor and used for storing the compressed air, a first filter respectively communicated with the air storage tank and the pipeline system and used for filtering the compressed air, and an air outlet control valve arranged between the air storage tank and the first filter.

Further, the air supply assembly also includes a second filter in communication with the duct system and the first filter, respectively, for further filtering the compressed air.

Further, the pipeline system comprises an air injection pipeline and an air delivery ball valve, wherein the air injection pipeline is respectively communicated with the second input end of the connecting piece and the air supply assembly, and the air delivery ball valve is arranged on the air injection pipeline and used for controlling the flow of the compressed air.

The invention has the following beneficial effects:

according to the sand-blasting shot-blasting equipment, abrasive materials are prestored in a storage tank and are connected with an output device through a connecting piece, when the surface of a part needs to be sprayed and strengthened, a material conveying ball valve is opened, so that the abrasive materials in the storage tank enter the connecting piece through the material conveying ball valve, meanwhile, a gas supply assembly provides compressed air and transmits the compressed air to the storage tank and the connecting piece through a pipeline system, so that the abrasive materials in the storage tank are fully extruded into the connecting piece, the abrasive materials in the connecting piece enter the output device under the drive of the compressed air, and then the abrasive materials are sprayed at a high speed to impact the surface of the part; in the process that the abrasive in the storage tank enters the connecting piece, the valve rod is controlled to rotate the ball body to open the valve body, the feeding hole of the ball body is arranged corresponding to the discharging end of the first material guiding hopper, the first material guiding hopper prevents the abrasive from contacting the valve body, the valve body is prevented from being abraded by the abrasive, and the abrasive is guided, so that the abrasive directly enters the connecting piece through the ball body, and the abrasive is prevented from being clamped around the ball body to be clamped; this scheme protects the valve body through laying first guide hopper in defeated material ball valve, and the abrasive material leads simultaneously, and for prior art, defeated material ball valve is difficult by abrasive material impact damage and card die, and life is permanent, need not frequent change of maintenance personal and maintenance, has saved manpower and materials greatly, and the practicality is strong, is suitable for extensive popularization and application.

In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view of a partial structure of a sand blasting apparatus according to a preferred embodiment of the present invention;

FIG. 2 is a schematic view showing the structure of a ball valve for transporting materials and a connecting member according to a preferred embodiment of the present invention;

FIG. 3 is a schematic structural view of a sand blasting apparatus according to a preferred embodiment of the present invention;

FIG. 4 is a schematic structural view of a sealing member in the sand blasting apparatus according to the preferred embodiment of the present invention;

fig. 5 is a schematic structural view of a piping system in the sand blasting and shot blasting apparatus according to the preferred embodiment of the present invention.

Illustration of the drawings:

1. a material storage tank; 11. a feed hopper; 12. a seal member; 121. a plug; 122. a movable support rod; 123. a gas-collecting hood; 124. a sealing seat; 125. a seal ring; 13. a first pipe mount; 14. a second pipe mount; 15. a support leg; 16. blanking cone; 2. a connecting member; 21. a pagoda joint; 22. a second three-way joint; 3. a gas supply assembly; 31. an air compressor; 32. a gas storage tank; 33. a first filter; 34. a second filter; 4. a piping system; 41. a first three-way joint; 42. sealing the gas transmission pipe; 43. sealing the supporting tube; 44. sealing the air outlet pipe; 45. an air jet line; 46. a gas delivery ball valve; 47. a connection socket; 5. a material conveying ball valve; 51. a valve body; 52. a sphere; 53. a valve stem; 54. a first material guiding hopper; 55. a second material guiding hopper.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the accompanying drawings, but the invention can be embodied in many different forms, which are defined and covered by the following description.

FIG. 1 is a schematic view of a partial structure of a sand blasting apparatus according to a preferred embodiment of the present invention; FIG. 2 is a schematic view showing the structure of a ball valve for transporting materials and a connecting member according to a preferred embodiment of the present invention; FIG. 3 is a schematic structural view of a sand blasting apparatus according to a preferred embodiment of the present invention; FIG. 4 is a schematic view showing the structure of a sealing member in the sand blast apparatus according to the preferred embodiment of the present invention; fig. 5 is a schematic structural view of a piping system in the sand blasting and shot blasting apparatus according to the preferred embodiment of the present invention.

As shown in fig. 1-3, the sand blasting and shot blasting apparatus of the embodiment includes a storage tank 1 for storing the abrasive, a connecting member 2 for outputting the abrasive and connected to the output device, an air supply module 3 for providing compressed air to pressurize an inner cavity of the storage tank 1, a pipeline system 4 for transmitting the compressed air respectively communicated with the storage tank 1, the air supply module 3 and the connecting member 2, and a ball valve 5 for controlling the flow rate of the abrasive respectively communicated with the storage tank 1 and the connecting member 2; the material conveying ball valve 5 comprises a valve body 51 communicated with the discharge end of the storage tank 1 and the first input end of the connecting piece 2 respectively and used for passing abrasive materials, a sphere 52 arranged in the valve body 51 and used for closing or opening the valve body 51 and a valve rod 53 connected with the sphere 52 and used for controlling the sphere 52 to rotate so as to close or open the valve body 51, the material conveying ball valve 5 further comprises a first material guide hopper 54 arranged on one side of the feeding of the inner cavity of the valve body 51 and arranged in a conical shape, the large end of the first material guide hopper is connected with the feeding end of the valve body 51, and the small end of the first material guide hopper 54 is used for being correspondingly arranged with the feeding hole of the sphere 52. Specifically, according to the sand blasting and shot blasting equipment, abrasive materials are pre-stored in the storage tank 1 and then are connected with the output device through the connecting piece 2, when the surface of a part needs to be sprayed and strengthened, the material conveying ball valve 5 is opened, so that the abrasive materials in the storage tank 1 enter the connecting piece 2 through the material conveying ball valve 5, meanwhile, the air supply assembly 3 provides compressed air and transmits the compressed air to the storage tank 1 and the connecting piece 2 through the pipeline system 4, so that the abrasive materials in the storage tank 1 are fully pressed out into the connecting piece 2, the abrasive materials in the connecting piece 2 enter the output device under the driving of the compressed air, and then the compressed air is sprayed at a high speed to impact the surface of the part; in the process that the abrasive in the storage tank 1 enters the connecting piece 2, the control valve rod 53 rotates the ball 52 to open the valve body 51, the feed inlet of the ball 52 is arranged corresponding to the discharge end of the first material guiding hopper 54, the first material guiding hopper 54 prevents the abrasive from contacting the valve body 51, so that the valve body 51 is prevented from being abraded by the abrasive, and the abrasive is guided, so that the abrasive directly passes through the ball 52 to enter the connecting piece 2, and the abrasive is prevented from being clamped around the ball 52 to block the ball 52; this scheme protects valve body 51 through laying first guide hopper 54 in defeated material ball valve 5, and the abrasive material leads simultaneously, and for prior art, defeated material ball valve 5 is difficult to be damaged by the abrasive material impact and the card is dead, and life is permanent, need not frequent change of maintenance personal and maintenance, has saved manpower and materials greatly, and the practicality is strong, is suitable for extensive popularization and application. Optionally, the material of the first guiding hopper is wear-resistant alloy steel. Optionally, the abrasive is a metallic abrasive or a non-metallic abrasive. Optionally, the metal abrasive comprises steel shot and steel grit. Alternatively, the non-metallic abrasive includes quartz sand, resin sand, glass sand, and ceramic pellets. Optionally, the valve body 51 is a galvanized pipe. Optionally, the storage tank 1 comprises a storage cylinder, legs 15 for supporting the storage cylinder, and a feed cone 16 communicating with the valve body 51 and the storage cylinder, respectively. It should be understood that the output device may be an abrasive nozzle or an abrasive lance. Alternatively, the first material guiding hopper 54 is a conical hopper.

As shown in fig. 2, in this embodiment, the ball valve 5 further includes a second material guiding hopper 55 disposed in the valve body 51 and arranged in a tapered shape, a small end of the second material guiding hopper 55 is disposed corresponding to the discharge port of the ball 52, and a large end of the second material guiding hopper 55 is connected to the discharge port of the valve body 51. Specifically, the valve body 51 is further protected through the second material guiding hopper 55, so that the valve body 51 is prevented from being worn, the abrasive is guided, the ball 52 is prevented from being stuck by the abrasive, and the abrasive is not contacted with the valve body 51 under the action of the first material guiding hopper 54 and the second material guiding hopper 55 in the input and output processes of the material conveying ball valve 5, so that the valve body 51 is prevented from being worn. Optionally, the material of the second material guiding hopper 55 is wear-resistant alloy steel. Optionally, the second material guiding hopper 55 is a conical hopper.

As shown in fig. 2, in the present embodiment, a gap between the small end of the first material guiding hopper 54 and the spherical surface of the sphere 52 is less than 0.8mm. Specifically, when the gap between the small end of the first material guiding hopper 54 and the spherical surface of the sphere 52 is smaller than 0.8mm, the abrasive directly enters the sphere 52, the sphere 52 is not easily stuck by the abrasive, particularly, when the sphere 52 rotates, the abrasive is not stuck between the sphere 52 and the first material guiding hopper 54, and meanwhile, the abrasive is prevented from impacting the sphere 52 and the edge part of the feeding end of the sphere 52; when the gap between the small end of the first material guiding hopper 54 and the spherical surface of the sphere 52 is greater than or equal to 0.8mm, the abrasive is easily stuck between the sphere 52 and the first material guiding hopper 54, and is also easily impacted on the edge of the feeding end of the sphere 52. Preferably, the gap between the small end of the first material guiding hopper 54 and the spherical surface of the sphere 52 is less than 0.5mm, and when the gap between the small end of the first material guiding hopper 54 and the spherical surface of the sphere 52 is less than 0.5mm, the abrasive can be prevented from entering the cavity among the sphere 52, the first material guiding hopper 54 and the valve body 51 to the maximum extent, so as to prevent the sphere 52 from being seized by the abrasive, and simultaneously, the abrasive can directly pass through the sphere 52, so as to prevent the abrasive from impacting the sphere 52. Optionally, the first guiding hopper 54 and/or the second guiding hopper 55 employ a venturi to form a low pressure area when the abrasive flows through the obstacle, thereby avoiding impact on the discharging end.

As shown in fig. 2, in this embodiment, a gap between the small end of the second material guiding hopper 55 and the spherical surface of the sphere 52 is less than 0.8mm. Specifically, when the gap between the small end of the second material guiding hopper 55 and the spherical surface of the sphere 52 is smaller than 0.8mm, the abrasive directly enters the sphere 52, the sphere 52 is not easily stuck by the abrasive, and the abrasive can be prevented from impacting the second material guiding hopper 55; when the gap between the small end of the second material guiding hopper 55 and the spherical surface of the sphere 52 is greater than or equal to 0.8mm, the sphere 52 is easily stuck by the abrasives, and the second material guiding hopper 55 is easily impacted by the abrasives. Preferably, the gap between the small end of the second material guiding hopper 55 and the spherical surface of the sphere 52 is less than 0.5mm, and when the gap between the small end of the second material guiding hopper 55 and the spherical surface of the sphere 52 is less than 0.5mm, the abrasive can be prevented from entering the cavity among the sphere 52, the second material guiding hopper 55 and the valve body 51 to the maximum extent, so as to prevent the sphere 52 from being stuck by the abrasive, and meanwhile, the abrasive can directly pass through the second material guiding hopper 55, so as to prevent the abrasive from impacting the second material guiding hopper 55.

As shown in fig. 1 and 4, in the present embodiment, the storage tank 1 further includes a feeding hopper 11 for abrasive to enter into the storage tank 1, and a sealing member 12 disposed corresponding to the discharging end of the feeding hopper 11 and communicating with the piping system 4 for sealing the discharging end of the feeding hopper 11 under the impact of compressed air. Specifically, the abrasive is buffered and guided through the feeding hopper 11, so that the abrasive enters the storage tank 1 for storage, when the surface of a part needs to be sprayed and strengthened, the air supply assembly 3 provides compressed air, the compressed air is divided into two parts under the action of the pipeline system 4 for conveying, one part is conveyed into the connecting piece 2 and enters the output device for high-speed spraying of the abrasive, and the other part of the compressed air impacts the sealing piece 12 to block the discharging end of the feeding hopper 11, so that the abrasive is prevented from entering the storage tank 1 and impacting the material conveying ball valve 5.

As shown in fig. 1 and fig. 5, in this embodiment, a first pipeline installation seat 13 and a second pipeline installation seat 14 are respectively disposed on two radial sides of a storage tank 1, a pipeline system 4 includes a sealed pipeline installed on the first pipeline installation seat 13 and the second pipeline installation seat 14 and communicated with an air supply assembly 3, the sealed pipeline includes a first three-way joint 41 disposed in the storage tank 1, a sealed air pipe 42 installed on the first pipeline installation seat 13 and respectively communicated with a first joint of the first three-way joint 41 and the air supply assembly 3, a sealed support pipe 43 installed on the second pipeline installation seat 14 and connected with a second joint of the first three-way joint 41, and a sealed air outlet pipe 44 communicated with a third joint of the first three-way joint 41 and movably inserted and matched with a sealing element 12. Specifically, the first three-way joint 41 is respectively communicated with the sealing air pipe 42, the sealing support pipe 43 and the sealing air outlet pipe 44, the sealing air pipe 42 and the sealing support pipe 43 are installed through the first pipeline installation seat 13 and the second pipeline installation seat 14, the sealing support pipe 43 supports the first three-way joint 41, the sealing air pipe 42 and the sealing air outlet pipe 44, the sealing air pipe 42 inputs compressed air into the first three-way joint 41, the sealing air pipe 44 outputs compressed air to impact the sealing piece 12, and the sealing piece 12 seals the discharge end of the feeding hopper 11.

As shown in fig. 4, in this embodiment, the sealing member 12 includes a plug 121 disposed corresponding to the discharging end of the feeding hopper 11 and having a cone shape with an upward conical tip, a movable support rod 122 formed by extending the middle of the plug 121 axially downward and movably engaged with the sealing gas outlet tube 44, and a gas collecting hood 123 formed by extending the edge of the plug 121 axially downward and obliquely disposed radially outward. Specifically, the movable support rod 122 and the sealed air outlet pipe 44 are slidably connected and circumferentially provided with ventilation gaps for compressed air to pass through, and the compressed air passes through the ventilation gaps to impact the air collecting hood 123, so that the movable support rod 122 slides, and the plug 121 plugs the discharge end of the feeding hopper 11. Optionally, the shape of stifled hopper is the cone and lays to when the abrasive material gets into storage tank 1 at the discharge end of feeding hopper 11, the abrasive material slips off on the slope of conical surface, avoids the abrasive material to pile up the waste, perhaps increases the dead weight of sealing member 12, and can't block up the discharge end of discharge hopper under compressed air's impact. Optionally, the sealing member 12 further includes a sealing seat 124 disposed at the discharging end of the feeding hopper 11 and a sealing ring 125 disposed in the sealing seat 124, and the gas collecting hood 123 guides the compressed air so that the compressed air impacts the plug 121, and the plug 121 and the sealing ring 125 are abutted against and sealed. Optionally, the movable supporting rod 122 is a hollow tube, and air holes obliquely arranged toward the plug 121 are formed in a side wall of the movable supporting rod 122, so that compressed air is discharged from the inner cavity of the movable supporting rod 122 to the inner cavity of the gas collecting channel 123 through the air holes, so as to push the plug 121 to plug the sealing seat 124. Alternatively, the sealing seat 124 is a flange plate, and the flange plate is welded to the discharge end of the feeding hopper 11 in a sealing manner. The flange plate is a standard part with high precision and high strength, is connected to the discharge end of the feeding hopper 11 through the flange plate, and is provided with a sealing ring 125 in the inner ring of the flange plate, so as to be in sealing fit with the plug 121, and has good sealing effect and high impact strength.

As shown in FIG. 5, in this embodiment, the sealing air duct 42 is detachably connected to the first joint of the first three-way joint 41. Specifically, the seal air delivery pipe 42 is maintained by detaching the seal air delivery pipe 42. Optionally, the sealing support tube 43 is a galvanized tube to prevent corrosion. Optionally, the sealed outlet tube 44 is a galvanized tube to prevent corrosion. Optionally, a connection socket 47 detachably connected to the first joint of the first three-way joint 41 and the sealing air pipe 42 is disposed between the first joint of the first three-way joint 41 and the sealing air pipe 42.

As shown in fig. 3, in the present embodiment, the air supply assembly 3 includes an air compressor 31 for compressing air, an air tank 32 for storing air communicated with the air compressor 31, a first filter 33 for filtering the compressed air communicated with the air tank 32 and the piping system 4, respectively, and an air outlet control valve arranged between the air tank 32 and the first filter 33. Specifically, the air compressor 31 and the air tank 32 are communicated through a pipeline, the air tank 32 and the first filter 33 are communicated through a pipeline, and the outlet air valve is arranged in the pipeline between the air tank 32 and the first filter 33 and used for closing or opening the pipeline; the air compressor 31 compresses air, the air storage tank 32 stores a certain amount of compressed air, when the surface of a part needs to be sprayed and strengthened, a pipeline between the air storage tank 32 and the first filter 33 is opened through the air outlet control valve, the compressed air in the air storage tank 32 is filtered by the first filter 33, then enters the connecting piece 2 through the pipeline system 4, and then drives abrasive materials to enter the output device so that the abrasive materials are sprayed at a high speed, the air compressor 31 is not needed to compress air from the beginning, and the working efficiency is improved. It should be understood that when the moisture in the compressed air is not filtered, the abrasive is prone to stick and block the first guiding hopper 54 after several cycles.

As shown in fig. 3, in this embodiment, the air supply assembly 3 further comprises a second filter 34 for further filtering the compressed air, which is in communication with the duct system 4 and the first filter 33, respectively. Specifically, the moisture in the compressed air is further filtered by the second filter 34, avoiding the bonding between the abrasives.

As shown in fig. 5, in the present embodiment, the pipeline system 4 includes an air injection pipeline 45 respectively communicated with the second input end of the connecting member 2 and the air supply assembly 3, and an air delivery ball valve 46 arranged on the air injection pipeline 45 for controlling the flow rate of the compressed air. Specifically, the compressed air in the air supply assembly 3 is delivered into the connector 2 through the air injection line 45 by opening the air delivery ball valve 46. Optionally, the connecting piece 2 comprises a pagoda joint 21 for connecting abrasive nozzles and a second three-way joint 22 communicating with the pagoda joint 21, the valve body 51 and the gas injection line 45, respectively. Optionally, the abrasive nozzle is "trumpet shaped" to achieve a higher abrasive jet velocity.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sand blasting and shot blasting device comprises a storage tank (1) for storing abrasive materials, an output device connecting piece (2) for outputting the abrasive materials and connected with the output device, an air supply assembly (3) for providing compressed air to pressurize the inner cavity of the storage tank (1), a pipeline system (4) which is respectively communicated with the storage tank (1), the air supply assembly (3) and the connecting piece (2) and used for transmitting the compressed air, and a material conveying ball valve (5) which is respectively communicated with the storage tank (1) and the connecting piece (2) and used for controlling the flow of the abrasive materials;

the material conveying ball valve (5) comprises a valve body (51) which is respectively communicated with the discharge end of the material storage tank (1) and the first input end of the connecting piece (2) and is used for abrasive materials to pass through, a ball body (52) which is arranged in the valve body (51) and is used for rotatably closing or opening the valve body (51), and a valve rod (53) which is connected with the ball body (52) and is used for controlling the ball body (52) to rotate so as to close or open the valve body (51),

it is characterized in that the preparation method is characterized in that,

the material conveying ball valve (5) further comprises a first material guide hopper (54) which is arranged on the feeding side of the inner cavity of the valve body (51) in a conical arrangement, the large end of the first flow guide hopper is connected with the feeding end of the valve body (51), and the small end of the first material guide hopper (54) is used for being arranged corresponding to the feeding hole of the ball body (52).

2. The sand blasting and shot blasting apparatus according to claim 1, wherein the ball valve (5) further comprises a second material guiding hopper (55) arranged in the valve body (51) in a tapered manner, the small end of the second material guiding hopper (55) is arranged corresponding to the discharge port of the ball body (52), and the large end of the second material guiding hopper (55) is connected with the discharge port of the valve body (51).

3. The sandblast peening apparatus of claim 2, wherein the gap between the small end of the first material guide hopper (54) and the spherical surface of the sphere (52) is less than 0.8mm; and/or

The clearance between the small end of the second material guiding hopper (55) and the spherical surface of the sphere (52) is less than 0.8mm.

4. A grit blasting apparatus as claimed in any one of claims 1 to 3, characterized in that the storage tank (1) further comprises a feed hopper (11) for abrasive material entering into the storage tank (1) and a seal (12) arranged in correspondence with the discharge end of the feed hopper (11) and communicating with the pipe system (4) for sealing off the discharge end of the feed hopper (11) under the impact of compressed air.

5. The sand blasting and shot blasting equipment according to claim 4, wherein a first pipeline installation seat (13) and a second pipeline installation seat (14) are respectively arranged on two radial sides of the storage tank (1), the pipeline system (4) comprises a sealing pipeline which is arranged on the first pipeline installation seat (13) and the second pipeline installation seat (14) and is communicated with the air supply assembly (3), the sealing pipeline comprises a first three-way joint (41) arranged in the storage tank (1), a sealing air conveying pipe (42) which is arranged on the first pipeline installation seat (13) and is respectively communicated with a first joint of the first three-way joint (41) and the air supply assembly (3), a sealing support pipe (43) which is arranged on the second pipeline installation seat (14) and is connected with a second joint of the first three-way joint (41), and a sealing air outlet pipe (44) which is communicated with the third joint of the first three-way joint (41) and is movably matched with the sealing element (12) in an inserting manner.

6. The sand-blasting and shot-blasting apparatus according to claim 5, wherein the sealing member (12) comprises a conical plug (121) arranged corresponding to the discharge end of the feed hopper (11) and having an upward conical tip, a movable support rod (122) axially extending downward from the middle of the plug (121) and movably engaged with the sealing gas outlet tube (44), and a gas-collecting hood (123) axially extending downward from the edge of the plug (121) and obliquely arranged radially outward.

7. The blasting and peening apparatus according to claim 5, wherein the seal gas pipe (42) is detachably connected to the first joint of the first three-way joint (41).

8. The sandblast and shot-blasting apparatus as claimed in any one of claims 1 to 3, wherein the air supply assembly (3) comprises an air compressor (31) for compressing air, an air tank (32) for storing compressed air in communication with the air compressor (31), and a first filter (33) for filtering compressed air in communication with the air tank (32) and the piping system (4), respectively, and an air control valve disposed between the air tank (32) and the first filter (33).

9. A grit-blasting and grit-blasting apparatus according to claim 8, characterized in that the air supply assembly (3) further comprises a second filter (34) for further filtering the compressed air, communicating with the pipe system (4) and the first filter (33), respectively.

10. A sandblasting and shot-blasting apparatus as claimed in any one of claims 1 to 3, characterised in that the system of pipes (4) comprises an air-injection pipe (45) communicating respectively with the second input of the connection member (2) and with the air-supply assembly (3), and an air-delivery ball valve (46) arranged on the air-injection pipe (45) for controlling the flow of compressed air.