CN116518182A - Sand pipe joint, air pressure adjusting method and sand blasting machine - Google Patents

Sand pipe joint, air pressure adjusting method and sand blasting machine Download PDF

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Publication number
CN116518182A
CN116518182A CN202310378186.3A CN202310378186A CN116518182A CN 116518182 A CN116518182 A CN 116518182A CN 202310378186 A CN202310378186 A CN 202310378186A CN 116518182 A CN116518182 A CN 116518182A
Authority
CN
China
Prior art keywords
sand
valve body
pipe joint
butterfly plate
connecting cylinder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310378186.3A
Other languages
Chinese (zh)
Inventor
魏祥各
王亚磊
王顺林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Luxcase Precision Technology Yancheng Co Ltd
Original Assignee
Luxcase Precision Technology Yancheng Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Luxcase Precision Technology Yancheng Co Ltd filed Critical Luxcase Precision Technology Yancheng Co Ltd
Priority to CN202310378186.3A priority Critical patent/CN116518182A/en
Publication of CN116518182A publication Critical patent/CN116518182A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C5/00—Devices or accessories for generating abrasive blasts
    • B24C5/02—Blast guns, e.g. for generating high velocity abrasive fluid jets for cutting materials
    • 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
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • 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
    • B24C7/0046—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier
    • B24C7/0053—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier
    • B24C7/0061—Equipment for feeding abrasive material; Controlling the flowability, constitution, or other physical characteristics of abrasive blasts the abrasive material being fed in a gaseous carrier with control of feed parameters, e.g. feed rate of abrasive material or carrier of feed pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C9/00—Appurtenances of abrasive blasting machines or devices, e.g. working chambers, arrangements for handling used abrasive material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2007—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member specially adapted operating means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/20—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation arranged externally of valve member
    • F16K1/2028—Details of bearings for the axis of rotation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/32—Details
    • F16K1/50—Preventing rotation of valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0227—Check valves or pivoted valves with the valve members swinging around an axis located at the edge of or outside the valve member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/06—Means to prevent accidental or unauthorised actuation using a removable actuating or locking member, e.g. a key
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F16K37/0016—Mechanical means having a graduated scale
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L29/00—Joints with fluid cut-off means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)

Abstract

The invention belongs to the technical field of sand blasting equipment, and discloses a sand pipe joint, an air pressure adjusting method and a sand blasting machine. The sand pipe joint comprises: valve body, connecting cylinder, butterfly plate and regulating part. The valve body has a first end and a second end; the connecting cylinder is arranged on the valve body, one end of the connecting cylinder extends into the sand bin, the other end of the connecting cylinder extends out of the second end and is used for being connected with the sand pipe, and a ventilation channel is formed between the connecting cylinder and the valve body; the butterfly plate is arranged in the ventilation channel and can rotate along the radial direction of the valve body. The regulating part is rotationally connected to the valve body and connected with the butterfly plate, and the regulating part is used for driving the butterfly plate to rotate in the ventilation channel so as to regulate the communication area between the first end and the second end, and the air pressure in the sand bin is maintained to be stable by changing the ventilation quantity of the sand bin. Therefore, the stability of the pressure in the sand bin can be maintained through the sand pipe joint, so that sand in the sand bin can uniformly flow into the sand pipe through the connecting cylinder, and the sand can uniformly flow to the sand gun, and the processing quality in the operation of utilizing the sand gun is effectively improved.

Description

Sand pipe joint, air pressure adjusting method and sand blasting machine
Technical Field
The invention relates to the technical field of sand blasting equipment, in particular to a sand pipe joint, an air pressure adjusting method and a sand blasting machine.
Background
The sand blasting is a process for cleaning and coarsening the surface of a product by utilizing the impact action of high-speed sand flow, and utilizes compressed air as power to spray sand materials on the surface of a workpiece at a high speed, and the surface of the workpiece is impacted and cut by the sand materials so as to achieve the effects of cleaning and coarsening.
Among the prior art, the sand blasting machine includes sand silo and sand blasting rifle, and the sand blasting rifle passes through sand pipe and sand silo intercommunication. The sand bin stores sand materials, high-pressure gas is injected into the sand bin, so that the sand materials stored in the sand bin can enter the sand pipe under the action of the high-pressure gas and are sprayed out through the sand blasting gun to act on the surface of a product.
However, in the use process of the sand blasting machine, high-pressure gas flows along with the flow of sand materials, so that the air pressure in the sand bin can possibly fluctuate, the air pressure has a direct influence on the flow speed of the sand materials, and when the air pressure fluctuates, the flow speed of the sand materials can be changed, so that the sand materials in the sand bin cannot uniformly flow into a sand pipe, and the processing of the surface of a workpiece is influenced.
Disclosure of Invention
The invention aims to provide a sand pipe joint, an air pressure adjusting method and a sand blasting machine, which solve the problem that in the prior art, the air pressure in a sand bin is easy to fluctuate, so that the flow of sand is uneven and the processing of a workpiece is affected.
To achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a sand pipe joint comprising: valve body, connecting cylinder, butterfly plate and regulating part. The valve body has a first end for connection with the sand silo and a second end opposite the first end; the connecting cylinder is arranged on the valve body, one end of the connecting cylinder extends into the sand bin, the other end of the connecting cylinder extends out of the second end and is used for being connected with a sand pipe, and a ventilation channel is formed between the connecting cylinder and the valve body; the butterfly plate is arranged in the ventilation channel and can rotate along the radial direction of the valve body. The regulating part is rotationally connected to the valve body and partially stretches into the ventilation channel to be connected with the butterfly plate, and the regulating part is used for driving the butterfly plate to rotate in the ventilation channel so as to regulate the communication area between the first end and the second end, and the air pressure in the sand bin is maintained to be stable by changing the ventilation quantity of the sand bin.
Optionally, the axis of connecting cylinder not with the axis collineation of valve body, set up on the border position of butterfly plate and supply the dodge breach that the connecting cylinder passed, just the butterfly plate with the inner wall slip laminating of valve body.
Optionally, the adjusting member includes: the adjusting column penetrates through the valve body and is connected with the valve body in a rotating mode, and one end of the adjusting column penetrating through the valve body is fixedly connected with the butterfly plate.
Optionally, the sand pipe joint further comprises: the dial is arranged outside the valve body; and the pointer is fixedly connected with the adjusting piece and is provided with a tip pointing to the scale mark on the surface of the dial.
Optionally, an end of the pointer remote from the tip is rotatably connected to the dial.
Optionally, a locking member selectively abutting the dial is provided at an end of the pointer remote from the tip.
Optionally, the locking piece is a screw in threaded connection with the pointer, and a chute on the dial for sliding the screw.
Optionally, a first end of the valve body is provided with a threaded sleeve connected with the sand bin; and/or the second end of the valve body is fixedly connected with a nut, and the connecting cylinder is connected into the valve body through the nut thread.
In a second aspect, the present invention provides a method for adjusting air pressure in a sand silo using the sand pipe joint according to any one of the first aspects, the method comprising: and when the sand outlet speed does not meet the preset condition, adjusting the rotation angle of the butterfly plate in the ventilation channel through the adjusting piece so as to change the communication area between the first end and the second end of the valve body, and maintaining the stable air pressure in the sand outlet through changing the ventilation quantity of the sand outlet so as to maintain the stable sand outlet speed.
In a third aspect, the present invention provides a blasting machine comprising: the sand bin is provided with a sand outlet; the sand pipe joint according to any one of the first aspects, provided to the sand outlet; and the sand gun is communicated with the sand pipe joint through a sand pipe.
The invention has the beneficial effects that:
according to the first aspect, the connecting cylinder is arranged in the valve body to form the ventilation channel, high-pressure gas in the sand bin can flow through the ventilation channel, and the communication area between the first end and the second end of the valve body is adaptively changed through the arrangement of the adjusting piece and the butterfly plate, so that the flow amount of the gas in the ventilation channel can be adjusted, and the air pressure in the sand bin can be adjusted through the valve body. Specifically, when the pressure in the sand silo is larger, the communication area is increased, and otherwise, the communication area is reduced. Therefore, the pressure in the sand bin can be kept stable through the sand pipe joint, so that sand in the sand bin can uniformly flow into the sand pipe through the connecting cylinder.
In the second aspect, the method can maintain the stable air pressure in the sand bin, so that the sand materials can keep uniform in the outflow process, and the sand materials entering the sand gun through the sand pipe can be ensured to be uniform.
In the third aspect, the air pressure in the sand bin is ensured to be stable through the sand pipe joint, so that sand materials can uniformly flow to the sand gun under the action of high-pressure air, and the processing quality when a workpiece is processed by the sand gun is effectively improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the sand pipe joint of the present invention;
FIG. 2 is a cross-sectional view of the valve body, connecting cylinder and butterfly plate of the sand pipe joint of the present invention;
fig. 3 is a cross-sectional view of the valve body and the regulator of the sand pipe joint of the present invention.
In the figure:
1. a valve body; 10. a first end; 11. a second end; 12. a ventilation channel; 2. a connecting cylinder; 3. a butterfly plate; 30. avoiding the notch; 4. an adjusting member; 5. a dial; 50. a chute; 6. a pointer; 7. a locking member; 8. a thread sleeve; 9. and (3) a nut.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.
The invention provides a sand pipe joint, an air pressure adjusting method and a sand blasting machine
Sand pipe joint
Referring to fig. 1 and 2, the sand pipe joint includes a valve body 1, a connecting cylinder 2, a butterfly plate 3, and an adjusting member 4. The valve body 1 has a first end 10 for connection with a sand silo and a second end 11 opposite the first end 10. The connecting cylinder 2 is arranged on the valve body 1, one end of the connecting cylinder 2 extends into the sand bin, the other end extends out of the second end 11 and is used for being connected with a sand pipe, and a ventilation channel 12 is formed between the connecting cylinder 2 and the valve body 1. The butterfly plate 3 is arranged in the ventilation channel 12 and can rotate around the radial direction of the valve body 1. The regulating element 4 is arranged on the valve body 1 and partially stretches into the ventilation channel 12 to be connected with the butterfly plate 3, the regulating element 4 is used for driving the butterfly plate 3 to rotate in the ventilation channel 12 so as to regulate the communication area between the first end 10 and the second end 11, and the air pressure in the sand bin is maintained to be stable by changing the ventilation amount of the sand bin.
Specifically, the valve body 1 has a columnar structure, and both ends thereof are open. Be provided with the sand outlet on the sand silo, the one end that valve body 1 and sand outlet are connected is as first end 10, and sealing structure such as sealing washer can be set up in the junction of first end 10 and sand outlet to guarantee the gas tightness in the sand silo.
The external diameter of connecting cylinder 2 is less than the internal diameter of valve body 1 to wear to establish in valve body 1, its length is greater than the length of valve body 1, makes connecting cylinder 2 one end can stretch out valve body 1's first end 10 and stretch into in the sand silo, and the second end 11 of valve body 1 is stretched out and is connected with the sand pipe to the other end, and the connected mode is threaded connection or grafting or cup joint etc.. The outer diameter of the connecting cylinder 2 is smaller than the inner diameter of the valve body 1, so that the ventilation passage 12 is formed between the outer side wall of the connecting cylinder 2 and the inner side wall of the valve body 1.
The butterfly plate 3 is arranged in the ventilation channel 12 along the radial direction of the valve body 1, the adjusting piece 4 is arranged on the side wall of the valve body 1 in a penetrating way, one end of the adjusting piece extends into the ventilation channel 12 and is fixedly connected with the butterfly plate 3, and the other end of the adjusting piece is positioned outside the valve body 1. The adjusting piece 4 penetrates along the radial direction of the valve body 1 so as to smoothly drive the butterfly plate 3 to rotate. With the rotation of the butterfly plate 3, the communication area between the first end 10 and the second end 11 of the valve body 1 is changed, so that the air pressure in the sand bin can be correspondingly changed.
In the use process of the sand pipe joint, the connecting cylinder 2 is arranged in the valve body 1 to form the ventilation channel 12, high-pressure gas in the sand bin can flow through the ventilation channel 12, and the communication area between the first end 10 and the second end 11 of the valve body 1 is adaptively changed through the arrangement of the adjusting piece 4 and the butterfly plate 3, so that the flow amount of the gas in the ventilation channel 12 can be adjusted, and the air pressure in the sand bin can be adjusted through the valve body 1. Specifically, when the pressure in the sand silo is larger, the communication area is increased, and otherwise, the communication area is reduced. Therefore, the pressure in the sand bin can be kept stable through the sand pipe joint, so that sand in the sand bin can uniformly flow into the sand pipe through the connecting cylinder 2.
Referring to fig. 2 and 3, in some embodiments of the present invention, the axis of the connecting cylinder 2 is not collinear with the axis of the valve body 1, the edge of the butterfly plate 3 is provided with a avoiding notch 30 for the connecting cylinder 2 to pass through, and the butterfly plate 3 is in sliding fit with the inner wall of the valve body 1.
Specifically, the connecting cylinder 2 is located at the lower side of the valve body 1 to form the above-described ventilation passage 12 at a position inside and above the valve body 1. The lower side of the butterfly plate 3 is provided with the avoidance notch 30, and the avoidance notch 30 is spanned on the connecting cylinder 2. The size of the butterfly plate 3 may be slightly smaller than the inner diameter of the valve body 1, so that the butterfly plate 3 can smoothly rotate in the ventilation channel 12. A sealing elastic pad (not shown) may be provided on the peripheral wall of the butterfly plate 3 so that the ventilation passage 12 can be completely sealed when the butterfly plate 3 is in a state perpendicular to the axis of the valve body 1. When the communication area between the first end 10 and the second end 11 of the valve body 1 needs to be adjusted, only the butterfly plate 3 needs to be rotated, so that the butterfly plate 3 is changed from a vertical state to a horizontal state, the communication area gradually increases, the amount of gas flowing through the ventilation channel 12 changes, the air pressure in the corresponding sand bin changes accordingly, and the purpose of adjusting the air pressure in the sand bin is achieved.
In some embodiments of the invention, the adjustment member 4 comprises an adjustment post. The adjusting column penetrates through the valve body 1 and is rotationally connected with the valve body 1, and one end of the adjusting column penetrating through the valve body 1 is fixedly connected with the butterfly plate 3. Specifically, the adjusting column extends along the radial direction of the valve body 1, one end of the adjusting column penetrates into the valve body 1 and is fixedly connected with the butterfly plate 3, and the other end of the adjusting column is positioned on the outer side of the valve body 1 so as to be convenient for an operator to grasp. The connection position of the adjusting column and the valve body 1 can be provided with a sealing structure so as to ensure that the air tightness of the connection position is ensured while the adjusting column can be rotationally connected with the valve body 1. While the connection of the adjustment post to the butterfly plate 3 may be by welding or adhesive, etc., in this embodiment the adjustment post is welded to the butterfly plate 3 on the side thereof adjacent the second end 11 of the valve body 1. In other embodiments, the adjusting column can also penetrate from the peripheral wall of the butterfly plate 3, and the fixed connection of the adjusting column and the butterfly plate can also be realized.
When the rotation angle of the butterfly plate 3 needs to be adjusted, the adjusting column is screwed at one end, located outside the valve body 1, of the grabbing adjusting column, and the butterfly plate 3 can be driven to synchronously rotate along with rotation of the adjusting column, so that the butterfly plate 3 gradually rotates from a vertical state to a horizontal state, and the rotation angle of the butterfly plate 3 is smoothly changed.
In some embodiments of the invention, the sand pipe joint further comprises a dial 5 and a pointer 6. The dial 5 is provided outside the valve body 1. The pointer 6 is fixedly connected with the adjusting member 4, and the pointer 6 is provided with a tip pointing to the scale of the surface of the dial 5.
Specifically, the dial 5 is sleeved at one end of the adjusting column, which is located outside the valve body 1, the dial 5 is fixedly connected with the valve body 1 through fasteners such as screws, and the side, away from the valve body 1, of the dial 5 can be provided with scales which are distributed at equal intervals. The pointer 6 is in a strip shape, a through hole for the adjusting column to pass through is formed in the middle of the pointer 6, and the adjusting column is fixedly connected with the hole wall of the through hole in a bonding or welding mode. The side surface of the pointer 6, which is close to the valve body 1, is in sliding fit with the surface of the dial 5, and one end of the pointer, which is close to the scale, is a tip. In order to prevent the scale from being worn, a protective film can be covered on the surface of the dial 5, and the protective film can also enable the surface of the dial 5 to be smoother, so that the pointer 6 is prevented from wearing the dial 5 when rotating along with the adjusting column.
Through setting up of calibrated scale 5 and pointer 6, when rotatory adjusting the post, adjust the post and can drive pointer 6 synchronous rotation, and calibrated scale 5 is fixed on valve body 1, when pointer 6 points to a certain scale on calibrated scale 5 and stop rotatory, butterfly plate 3 also stops rotatory equally, then the angle that pointer 6 points to is the rotation angle of butterfly plate 3, and the size of butterfly plate 3 and valve body 1 is known and standard, consequently just can confirm the change range of the area of communication between first end 10 and the second end 11 of valve body 1 through the rotation angle of butterfly plate 3, with this is convenient for the accurate size of controlling ventilation volume in the passageway 12 of taking a breath of operating personnel.
In some embodiments of the invention, the end of the pointer 6 remote from the tip is rotatably connected to the dial 5. Specifically, the pointer 6 is rectangular shape, and keeps away from the one end and the calibrated scale 5 rotation of pointed end and be connected, can improve the installation stability of pointer 6 to when rotatory adjusting the post, can directly promote pointer 6 and rotate, drive the adjusting column rotation, and need not to grasp the adjusting column. It should be understood that a handle or a holding disc and other structures may be disposed at one end of the adjusting column located outside the valve body 1, so as to conveniently drive the adjusting column to rotate.
In some embodiments of the invention, the end of the pointer 6 remote from the tip is provided with a lock 7 which selectively abuts the dial 5. Specifically, when the pointer 6 needs to be rotated, the locking piece 7 is not abutted against the dial 5, so that the pointer 6 can rotate relative to the dial 5, and when the pointer 6 rotates to a specified angle, the pointer 6 is fixed by the abutment of the locking piece 7 and the dial 5, and the adjusting column and the butterfly plate 3 are synchronously fixed.
In some embodiments of the invention, the locking element 7 is a screw screwed to the pointer 6, and the dial 5 is provided with a sliding groove 50 for sliding the screw. Specifically, a screw is threaded on the pointer 6, and the screw selectively abuts the dial 5 through one end of the pointer 6. In this embodiment, the end of the pointer 6 far away from the tip is 7-shaped, the screw is penetrated on the cross arm, the chute 50 is arranged on the peripheral wall of the dial 5, and the tip of the screw extends into the chute 50. In other embodiments, the screw may be provided at other locations, for example, the screw may be threaded at a location where the pointer 6 is adjacent to the adjustment post, and the chute 50 may be open around the adjustment post.
Through the setting of screw and spout 50, when needs rotatory adjusting column and pointer 6, just twist the screw and make its and spout 50 separation, just can drive adjusting column and pointer 6 rotation, and when adjusting column and pointer 6 turn to appointed direction after, just can reverse twist the screw, with the cell wall butt of screw and spout 50, just can fix pointer 6 and adjusting column on calibrated scale 5 together.
In some embodiments of the invention, the first end 10 of the valve body 1 is provided with a threaded sleeve 8 that is connected to the sand silo. In particular, the threaded sleeve 8 may be welded directly to the first end 10 of the valve body 1, both coaxially disposed. The threaded sleeve 8 extends towards the end remote from the valve body 1, the outer side of which is provided with threads for threaded connection with the outlet portion of the sand silo.
Through setting up thread bush 8, both can fix the export position department at the sand silo with valve body 1, can also guarantee the gas tightness between valve body 1 and the sand silo through threaded connection, reduce the possibility that the gas in the sand silo takes place to leak in the export department.
In some embodiments of the invention, the second end 11 of the valve body 1 is fixedly connected with a nut 9, and the connecting cylinder 2 is screwed into the valve body 1 through the nut 9. Specifically, the nut 9 may be fixed to the lower side of the second end 11 of the valve body 1 by bonding or welding, and the outer surface of the connecting cylinder 2 is provided with external threads so as to be threaded into the nut 9. The connecting cylinder 2 penetrates through a section of the first end 10 of the valve body 1 and stretches into the threaded sleeve 8, and the outer side wall of the connecting cylinder 2 is tightly attached to the inner side wall of the threaded sleeve 8. The screw thread may be provided only at a section of the connecting cylinder 2 extending out of the second end 11 so as to adjust the extending length of the connecting cylinder 2, while also being capable of being screw-connected with a sand pipe of a connecting sand gun so as to ensure air tightness between the sand pipe and the connecting cylinder 2.
Air pressure regulating method
The air pressure adjusting method utilizes the sand pipe joint in any one of the embodiments to adjust the air pressure in the sand silo, and specifically comprises the following steps: and when the sand outlet speed does not meet the preset condition, the rotation angle of the butterfly plate 3 in the ventilation channel 12 is regulated by the regulating piece 4 so as to change the communication area between the first end 10 and the second end 11 of the valve body 1, and the air pressure in the sand outlet is maintained to be stable by changing the ventilation quantity of the sand outlet so as to maintain the sand outlet speed to be stable.
The sand outlet speed of the sand bin represents the speed of the sand flowing out of the sand outlet of the sand bin, and represents whether the sand outlet amount is uniform or not. The preset condition is a parameter manually set according to the processing requirement, and the parameter can be a range value, namely an upper limit value and a lower limit value, and when the sand discharge speed is between the range value, the sand discharge speed is determined to be in accordance with the preset condition, namely the sand in the sand bin uniformly flows out at the moment.
When the air pressure in the sand bin fluctuates, the sand outlet speed is changed under the influence of the air pressure fluctuation, and the sand outlet speed exceeds the range value, so that the sand outlet speed does not meet the preset condition. When the sand outlet speed does not meet the preset condition, the butterfly plate 3 can be driven to rotate in the ventilation channel 12 through the adjusting piece 4 to change the angle of the butterfly plate 3, increase or decrease the communication area between the first end 10 and the second end 11 of the valve body 1, so that the quantity of gas flowing through the ventilation channel 12 can be changed, the air pressure in the sand bin can be correspondingly adjusted to keep the air pressure in the sand bin stable, the corresponding sand outlet speed can be kept stable, and further, the sand entering the sand gun through the sand pipe can be ensured to be kept uniform.
It should be understood that the sand-out speed can be obtained through a sensor, and also can be judged through experience of a worker, and the driving of the specific adjusting member 4 can be realized through a motor controlled by a controller and a corresponding transmission structure, and also can be realized through manual adjustment of the worker, and the above scheme belongs to the prior art, and can be correspondingly set according to the type of the sand blasting equipment and the requirement of the sand blasting operation, and the description is omitted herein.
Sand blasting machine
The sand blaster comprises a sand silo, a sand gun and a sand pipe joint as in any of the embodiments above. The sand bin is provided with a sand outlet, and the sand pipe joint is arranged at the sand outlet. The sand gun is communicated with the sand pipe joint through a sand pipe.
Specifically, the sand bin is cubic, the upper part of the sand bin is provided with air source equipment for injecting compressed air, and the lower part of the sand bin is conical. The sand outlet is positioned at the lower part of the sand bin, the sand pipe joint is arranged at the sand outlet, and the sand pipe is connected with the connecting cylinder 2 of the sand pipe joint. The sand bin can be provided with a plurality of sand outlets at intervals, and each sand outlet is correspondingly provided with a sand pipe joint.
The pneumatic stability in the sand silo is ensured through the sand pipe joint, so that sand materials can uniformly flow to the sand guns under the action of high-pressure gas, the processing quality when the sand guns are used for processing workpieces is effectively improved, and particularly when a plurality of sand guns run simultaneously, the sand materials of the sand guns can be uniformly sent out by correspondingly adjusting the rotation angle of the butterfly plate 3 in each sand pipe joint, so that the processing quality is improved and the operation speed is improved.
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. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. 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 (10)

1. The sand coupling, its characterized in that, sand coupling includes:
a valve body (1), the valve body (1) having a first end (10) for connection with a sand silo and a second end (11) opposite the first end (10);
the connecting cylinder (2) is arranged on the valve body (1), one end of the connecting cylinder (2) stretches into the sand bin, the other end stretches out of the second end (11) and is used for being connected with a sand pipe, and a ventilation channel (12) is formed between the connecting cylinder (2) and the valve body (1);
the butterfly plate (3) is arranged in the ventilation channel (12) and can rotate along the radial direction of the valve body (1); and
the adjusting piece (4) is rotationally connected to the valve body (1) and partially stretches into the ventilation channel (12) to be connected with the butterfly plate (3), the adjusting piece (4) is used for driving the butterfly plate (3) to rotate in the ventilation channel (12) to adjust the communication area between the first end (10) and the second end (11), and the ventilation amount of the sand bin is changed to maintain the air pressure in the sand bin to be stable.
2. The sand pipe joint according to claim 1, wherein the axis of the connecting cylinder (2) is not collinear with the axis of the valve body (1), an avoidance gap (30) for the connecting cylinder (2) to pass through is formed in the edge position of the butterfly plate (3), and the butterfly plate (3) is in sliding fit with the inner wall of the valve body (1).
3. A sand pipe joint according to claim 1, characterized in that the adjusting member (4) comprises:
the adjusting column penetrates through the valve body (1) and is rotationally connected with the valve body (1), and one end of the adjusting column penetrating through the valve body (1) is fixedly connected with the butterfly plate (3).
4. A sand pipe joint according to any one of claims 1 to 3, further comprising:
a dial (5) arranged outside the valve body (1); and
the pointer (6) is fixedly connected with the adjusting piece (4), and the pointer (6) is provided with a tip pointing to the scale on the surface of the dial (5).
5. A sand pipe joint according to claim 4, characterized in that the end of the pointer (6) remote from the tip is in rotational connection with the dial (5).
6. A sand pipe joint according to claim 5, characterized in that the end of the pointer (6) remote from the tip is provided with a locking element (7) which selectively abuts the dial (5).
7. A sand pipe joint according to claim 6, characterized in that the locking element (7) is a screw in threaded connection with the pointer (6), and that the dial (5) is provided with a slide groove (50) for sliding the screw.
8. A sand pipe joint according to any one of claims 1-3, characterized in that the first end (10) of the valve body (1) is provided with a threaded sleeve (8) connected to the sand silo; and/or
The second end (11) of the valve body (1) is fixedly connected with a nut (9), and the connecting cylinder (2) is connected into the valve body (1) through the nut (9) in a threaded mode.
9. A method for adjusting air pressure in a sand silo using the sand pipe joint according to any one of claims 1 to 8, the method comprising:
acquiring the sand outlet speed of the sand bin, and adjusting the rotation angle of the butterfly plate (3) in the ventilation channel (12) through the adjusting piece (4) when the sand outlet speed does not meet the preset condition so as to change the communication area between the first end (10) and the second end (11) of the valve body (1), and maintaining the air pressure in the sand bin to be stable through changing the ventilation quantity of the sand bin so as to maintain the sand outlet speed to be stable.
10. Sand blasting machine, its characterized in that, sand blasting machine includes:
the sand bin is provided with a sand outlet;
the sand pipe joint according to any one of claims 1 to 9, provided to the sand outlet; and
and the sand gun is communicated with the sand pipe joint through a sand pipe.
CN202310378186.3A 2023-04-11 2023-04-11 Sand pipe joint, air pressure adjusting method and sand blasting machine Pending CN116518182A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310378186.3A CN116518182A (en) 2023-04-11 2023-04-11 Sand pipe joint, air pressure adjusting method and sand blasting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310378186.3A CN116518182A (en) 2023-04-11 2023-04-11 Sand pipe joint, air pressure adjusting method and sand blasting machine

Publications (1)

Publication Number Publication Date
CN116518182A true CN116518182A (en) 2023-08-01

Family

ID=87396742

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310378186.3A Pending CN116518182A (en) 2023-04-11 2023-04-11 Sand pipe joint, air pressure adjusting method and sand blasting machine

Country Status (1)

Country Link
CN (1) CN116518182A (en)

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