CN116020980A

CN116020980A - Sand shooting barrel and core shooting machine

Info

Publication number: CN116020980A
Application number: CN202211731840.6A
Authority: CN
Inventors: 邓超
Original assignee: Youzhu Technology Beijing Co ltd
Current assignee: Youzhu Technology Beijing Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-04-28
Anticipated expiration: 2042-12-30
Also published as: CN116020980B

Abstract

The application discloses a sand shooting barrel, which comprises a barrel body, be equipped with the inner skleeve in the barrel, the entry end of inner skleeve with the feed inlet intercommunication of barrel, the exit end of inner skleeve with the holding chamber intercommunication of barrel, the inner skleeve with form the dilatation chamber between the barrel, the roof of barrel is equipped with the overflow hole, the overflow hole is located the outside of feed inlet, and with the dilatation chamber intercommunication. The sand shooting barrel of this application, it is equipped with and holds chamber and dilatation chamber, before holding the chamber and filling up the sand material, the sand material can follow the feed inlet constantly to fill into and hold the chamber, after holding the chamber and filling up the sand material, when the cylinder top surface has unnecessary sand material, sand material accessible overflows the hole and gets into the dilatation chamber to the dilatation chamber provides extra storage space for unnecessary sand material, can prevent that cylinder top surface from piling up the sand material, in follow-up flow, can prevent to have sand material between sand shooting barrel and the pressure head.

Description

Sand shooting barrel and core shooting machine

Technical Field

The invention relates to the technical field of core shooting machines, in particular to a sand shooting barrel and a core shooting machine.

Background

The existing sand shooting barrel is fed with sand materials through a feeding hole at the top of the sand shooting barrel, after the sand shooting barrel is filled with the sand materials, sand adding cannot be stopped in time, and excessive sand materials are accumulated on the outer surface of the top of the sand shooting barrel, so that follow-up procedures are not facilitated.

Disclosure of Invention

In order to solve one or more technical problems in the prior art, or at least provide an advantageous choice, the invention provides a sand shooting barrel and a core shooter, which solve the problems that excessive sand materials are accumulated on the outer surface of the top of the sand shooting barrel and the like.

The invention discloses a sand shooting barrel, which comprises a barrel body, wherein an inner sleeve is arranged in the barrel body, the inlet end of the inner sleeve is communicated with a feed inlet of the barrel body, the outlet end of the inner sleeve is communicated with a containing cavity of the barrel body, an expanding cavity is formed between the inner sleeve and the barrel body, and an overflow hole is arranged on the top wall of the barrel body, is arranged on the outer side of the feed inlet and is communicated with the expanding cavity.

The sand shooting barrel provided by the invention has the following additional technical characteristics:

the inner sleeve is arranged centrally with respect to the central axis of the barrel.

The axial dimension of the inner sleeve is no greater than half the axial dimension of the barrel.

The longitudinal section of the inner sleeve is rectangular or trapezoidal.

The overflow hole is crescent; the overflow holes are arranged in a plurality, and are arranged around the feed inlet at intervals.

The inner sleeve is detachably connected with the cylinder body.

A hopper is arranged above the sand shooting barrel, and a one-way valve is arranged between the hopper and the sand shooting barrel.

The one-way valve comprises a communication cavity arranged between the hopper and the sand shooting barrel and a valve ball arranged in the communication cavity, an overflow gap is arranged between the valve ball and the communication cavity, and the diameter of the valve ball is larger than that of a sand outlet of the hopper.

The side wall of the sand shooting barrel is provided with an air inlet hole.

Further, the invention also discloses a core shooter, which comprises the sand shooting barrel of the embodiment.

By adopting the technical scheme, the invention has the following beneficial effects:

1. the sand shooting barrel is provided with the containing cavity and the expanding cavity, before the containing cavity is filled with sand, the sand can be continuously filled into the containing cavity from the feeding port, after the containing cavity is filled with sand, when the superfluous sand exists on the outer surface of the top of the barrel, the sand can enter the expanding cavity through the overflow hole, so that the expanding cavity provides extra storage space for the superfluous sand, the sand can be prevented from being accumulated on the outer surface of the top of the barrel, and in the follow-up flow process, the sand can be prevented from being existed between the sand shooting barrel and the pressure head.

2. As a preferred embodiment, the inner sleeve is arranged centrally with respect to the central axis of the cylinder; therefore, a uniform expansion cavity can be formed between the outer side wall of the inner sleeve and the inner side wall of the cylinder, and excessive sand can flow into the expansion cavity through the overflow holes by further optimizing the distribution of the overflow holes corresponding to the expansion cavity, so that no residual sand exists on the outer surface of the top of the cylinder.

3. As a preferred embodiment, the axial dimension of the inner sleeve is not more than half the axial dimension of the barrel; by limiting the axial dimension of the inner sleeve, the space of the accommodating cavity below the inner sleeve can be ensured to be sufficient so as to store the required amount of sand and meet the sand shooting requirement.

4. As a preferred embodiment, the longitudinal section of the inner sleeve is rectangular or trapezoidal; the shape of the inner sleeve can be flexibly arranged, and the processing flexibility can be improved.

5. As a preferred embodiment, the overflow hole is crescent-shaped; through the design crescent cross the discharge orifice, can increase the open area, improve the sand material and cross the probability that the discharge orifice got into the dilatation chamber, simultaneously, crescent has the radian, conveniently around or encircle the circumference of feed inlet and arrange, compare in the rectangle and cross the discharge orifice, reducible cross the setting quantity of discharge orifice.

The overflow holes are arranged in a plurality, and are arranged around the feed inlet at intervals; therefore, the distribution range of the overflow holes can be enlarged, the probability that sand enters the expansion cavity through the overflow holes is improved, and no residual sand exists on the outer surface of the top of the cylinder body.

6. As a preferred embodiment, the inner sleeve is detachably connected with the cylinder; therefore, the inside of the cylinder body can be conveniently cleaned, and when the cylinder body needs to be cleaned, the inner sleeve can be detached; or, in some application scenarios, the barrel can be used alone when the inner sleeve is detached, so that the space of the accommodating cavity inside the barrel can be increased.

7. As a preferred embodiment, a hopper is arranged above the sand shooting barrel, and a one-way valve is arranged between the hopper and the sand shooting barrel; through setting up the hopper, can guarantee that sand quantity is sufficient to the sand shooting section of thick bamboo supplements sand material to satisfy the sand shooting demand.

As a next preferred example of the present embodiment, the one-way valve includes a communication cavity provided between the hopper and the sand shooting barrel, and a valve ball provided in the communication cavity, an overflow gap is provided between the valve ball and the communication cavity, and the diameter of the valve ball is larger than the sand outlet of the hopper; in this embodiment, the check valve is a valve ball structure that can move up and down, specifically, when the valve ball blocks the sand outlet, the check valve is closed, and when the valve ball moves down to communicate the sand outlet with the overflow gap, the check valve is opened.

Further, the side wall of the sand shooting barrel is provided with an air inlet hole; therefore, when the hopper is connected with the sand shooting barrel, when the sand shooting barrel enters compressed air through the air inlet hole, the air pressure in the hopper can be increased, the valve ball can be jacked up to enable the valve ball to plug the sand outlet, after the sand shooting of the sand shooting barrel is finished, the compressed air is discharged from the air inlet hole, at the moment, the valve ball can fall under the action of gravity to conduct the sand outlet and the overflow gap, the sand can be discharged from the hopper to the sand shooting barrel, automatic sand supplementing is realized, and the continuous sand shooting requirement can be met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

FIG. 1 is a schematic view of a shooting pot according to an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view of the shooting pot of FIG. 1.

Fig. 3 is a schematic structural view of a hopper and a check valve according to an embodiment of the present application.

Reference numerals:

10-cylinder, 101-feed inlet, 102-holding cavity, 103-air inlet, 11-inner sleeve, 111-inlet end, 112-outlet end, 113-expansion cavity, 12-overflow hole, 13-hopper, 131-sand outlet, 141-communication cavity, 142-valve ball.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

In order that the above-recited objects, features and advantages of the present application will be more clearly understood, a more particular description of the application will be rendered by reference to the appended drawings and appended detailed description. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments may be combined with each other.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than as described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; 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. However, it is noted that direct connection indicates that two connected bodies are not connected through a transition structure, but are connected through a connection structure to form a whole. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1 to 3, the present application provides a sand shooting barrel, which comprises a barrel 10, an inner sleeve 11 is arranged in the barrel 10, an inlet end 111 of the inner sleeve 11 is communicated with a feeding port 101 of the barrel 10, an outlet end 112 of the inner sleeve 11 is communicated with a containing cavity 102 of the barrel 10, an expanding cavity 113 is formed between the inner sleeve 11 and the barrel 10, an overflow hole 12 is arranged on the top wall of the barrel 10, and the overflow hole 12 is arranged on the outer side of the feeding port 101 and is communicated with the expanding cavity 113.

The sand feeding process of the sand shooting barrel comprises the following steps: sand enters the inner sleeve 11 through the feed inlet 101 and enters the holding cavity 102 through the outlet end 112 of the inner sleeve 11, and after the holding cavity 102 is filled with sand, the sand seals the outlet end 112 of the inner sleeve 11 until the inner sleeve 11 is also filled with sand, and sand cannot enter the cylinder 10 through the feed inlet 101. In order to prevent sand materials from accumulating on the outer surface of the top of the cylinder 10, the flow-through hole 12 is arranged, and the expansion cavity 113 is empty at the moment, so that excessive sand materials can enter the expansion cavity 113 through the flow-through hole 12, accumulation of the excessive sand materials on the outer surface of the top of the cylinder 10 can be avoided, and the cleanness of the outer surface of the top of the cylinder 10 is ensured. Wherein the receiving chamber 102 has a space below the outlet end 112 and the expansion chamber 113 has a space between the inner sleeve 11 and the cylinder 10.

The manner in which the cylinder 10 and the inner sleeve 11 are disposed is not limited to this application, and both are detachably connected or welded, for example. The aperture of the feed inlet 101 is no greater than the aperture of the inlet end 111 of the inner sleeve 11 so that sand entering from the feed inlet 101 can all enter the receiving chamber 102 through the passageway formed by the inner sleeve 11.

As a preferred embodiment of the present application, the inner sleeve 11 is arranged centrally with respect to the central axis of the cylinder 10.

As shown in fig. 2, in this embodiment, a uniform annular expansion cavity 113 is formed between the outer side wall of the inner sleeve 11 and the inner side wall of the cylinder 10, and as long as one or more flow-through holes 12 are correspondingly arranged above the expansion cavity 113, excessive sand can easily enter the expansion cavity 113 through the flow-through holes 12. Since the expansion chamber 113 is distributed in a ring shape, the overflow hole 12 may be disposed at an arbitrary position outside the feed port 101, and even when the excessive sand material does not precisely fall into the overflow hole 12, it is only necessary to simply push the sand material into the overflow hole 12.

In other embodiments, the inner sleeve 11 may be disposed forward, rearward, left or right with respect to the central axis of the barrel 10, with the outer sidewall of the inner sleeve 11 not in contact with the inner sidewall of the barrel 10. It will be appreciated that the orientation of the feed inlet 101 corresponds to the orientation of the inner sleeve 11.

As a preferred embodiment of the present application, the axial dimension of the inner sleeve 11 is not more than half the axial dimension of the barrel 10.

As shown in fig. 2, in this embodiment, by defining the length of the inner sleeve 11, sufficient space of the accommodation chamber 102 below the outlet end 112 can be ensured so that the amount of sand satisfying the sand ejection demand can be stored at a time.

Further, regarding the radial dimension of the inner sleeve 11, the outer diameter of the inner sleeve 11 is, for example, not less than one third of the inner diameter of the cylinder 10 and not more than one half of the inner diameter of the cylinder 10 to ensure the sand feeding rate and prevent the expansion chamber 113 from excessively reducing in space.

As a preferred embodiment of the present application, the inner sleeve 11 has a rectangular or trapezoidal longitudinal section.

Fig. 1 and 2 show an example in which the inner sleeve 11 is cylindrical, but of course the inner sleeve 11 may also have other configurations, such as cuboid, polyhedron, truncated cone, etc.

As a preferred embodiment of the present application, the flow-through hole 12 has a crescent shape. As shown in fig. 1, the crescent-shaped overflow hole 12 has an increased open area compared with a round hole or square hole, so that the probability of sand entering the expansion cavity 113 through the overflow hole 12 can be improved; and, the crescent shape has an arc, and when a plurality of crescent-shaped overflow holes 12 are arranged around the feed inlet 101, the number of the overflow holes can be reduced as compared with a rectangular overflow hole.

In some embodiments, the flow-through holes 12 are provided in plurality and spaced around the inlet 101. By arranging the plurality of overflow holes 12, the distribution range of the overflow holes 12 can be enlarged, the probability that sand enters the expansion cavity 113 through the overflow holes 12 can be improved, and no residual sand can be ensured on the outer surface of the top of the cylinder 10. The shape of the overflow hole 12 may be set according to practical requirements, for example, a round hole, a square hole, and an arc hole.

In other embodiments, one of the flow holes 12 is arranged to surround the outer side of the feed inlet 101 in a ring shape, so that the range of the opening is ensured, and the probability that sand enters the expansion cavity 113 through the flow hole 12 can be improved. Alternatively, the single flow-through hole 12 may be a circular hole, a square hole or an arc hole, and may be disposed at any position outside the feed port 101, so as to prevent sand from easily entering the expansion cavity 113 through the flow-through hole 12 during initial feeding and occupying the space of the expansion cavity 113 in advance.

As a preferred embodiment of the present application, the inner sleeve 11 is detachably connected to the cylinder 10.

By detachable connection, the inner sleeve 11 is easily detached for cleaning the inside of the cylinder 10 or the cylinder 10 is used alone. With regard to the form of the detachable connection, for example, a screw connection, a snap connection, etc. are included.

As a preferred embodiment of the present application, a hopper 13 is arranged above the sand shooting barrel, and a one-way valve is arranged between the hopper 13 and the sand shooting barrel.

By arranging the hopper 13, sand materials can be supplemented to the sand shooting barrel, so that the sand quantity can be ensured to be sufficient, and the sand shooting requirement can be met.

Preferably, the one-way valve comprises a communication cavity 141 arranged between the hopper 13 and the sand shooting barrel and a valve ball 142 arranged in the communication cavity 141, an overflow gap is arranged between the valve ball 142 and the communication cavity 141, and the diameter of the valve ball 142 is larger than that of the sand outlet 131 of the hopper 13.

Specifically, as shown in fig. 3, the valve ball 142 is movable up and down, and when the valve ball 142 closes the sand outlet 131, the check valve is closed, and when the valve ball 142 moves down to communicate the sand outlet 131 with the overflow gap, the check valve is opened. The valve ball 142 may be moved up and down by an electric drive, or the valve ball 142 may be moved up and down by an internal and external pressure difference, which is not limited in this application.

Further, the side wall of the sand shooting barrel is provided with an air inlet hole.

As shown in fig. 3, the sidewall of the barrel 10 is provided with an air intake hole 103 for supplying compressed air to the shooting pot. When the hopper 13 is connected with the sand shooting cylinder, the air pressure in the hopper 13 can be increased when the sand shooting cylinder enters compressed air through the air inlet 103, and the valve ball 142 is jacked up at the moment so as to block the sand outlet 131; after the sand injection of the sand injection cylinder is finished, compressed air is discharged from the air inlet 103, the valve ball 142 can fall under the action of gravity to conduct the sand outlet 131 and the overflow gap, and the hopper 13 can discharge sand to the sand injection cylinder, so that automatic sand supplement is realized, and the continuous sand injection requirement can be met. For example, in the scene of needing intermittent sand shooting, the sand can be fed into the sand shooting barrel through the hopper 13 in an intermittent manner, so that the influence on the sand shooting efficiency caused by insufficient sand quantity in the barrel 10 can be avoided.

Further, the valve ball 142 has elasticity. Therefore, when the valve ball 142 seals the sand outlet 131, the valve ball 142 can be elastically deformed to be tightly attached to the sand outlet 131, so that the closing reliability of the one-way valve can be improved.

On the basis of the sand shooting barrel, the application also provides a core shooter, which can solve the problem that redundant sand materials are accumulated on the outer surface of the top of the barrel.

The technical solution protected by the present invention is not limited to the above embodiments, and it should be noted that, the combination of the technical solution of any one embodiment with the technical solution of the other embodiment or embodiments is within the scope of the present invention. While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.

Claims

1. A sand shooting barrel comprises a barrel body and is characterized in that,

an inner sleeve is arranged in the cylinder body, the inlet end of the inner sleeve is communicated with the feeding hole of the cylinder body, the outlet end of the inner sleeve is communicated with the accommodating cavity of the cylinder body, an expanding cavity is formed between the inner sleeve and the cylinder body, an overflow hole is formed in the top wall of the cylinder body, and the overflow hole is arranged on the outer side of the feeding hole and is communicated with the expanding cavity.

2. A sand shooting pot as claimed in claim 1, wherein,

3. A sand shooting pot as claimed in claim 1, wherein,

4. A sand shooting pot as claimed in claim 1, wherein,

the longitudinal section of the inner sleeve is rectangular or trapezoidal.

5. A sand shooting pot as claimed in claim 1, wherein,

the overflow hole is crescent;

the overflow holes are arranged in a plurality, and are arranged around the feed inlet at intervals.

6. A sand shooting pot as claimed in claim 1, wherein,

the inner sleeve is detachably connected with the cylinder body.

7. A sand shooting pot as claimed in claim 1, wherein,

8. A sand shooting pot as claimed in claim 7, wherein,

9. The shooting pot of claim 8 wherein the barrel comprises a barrel body,

the side wall of the sand shooting barrel is provided with an air inlet hole.

10. A core shooter comprising a shooting pot as claimed in any one of claims 1 to 9.