Pouring opening reserving assembly for sand mold casting

Abstract

The utility model discloses a sprue gate reserved component for sand casting, which comprises a rod body, a sprue gate forming component and a screw knob, and the rod body penetrates through the sprue gate forming component and is connected with the sprue gate forming component in a sliding manner; the pouring gate forming assembly comprises a sleeve and a conical part, the conical part is arranged on the lower portion of the sleeve, a channel is formed in the conical part, the channel in the conical part communicates with the interior of the sleeve, the rod body is sleeved with the sleeve and the conical part, and an inner threaded sleeve is arranged on one side of the sleeve and communicates with an inner cavity of the sleeve. According to the utility model, the structure is reasonable, through the matching of the pouring gate forming assembly and the rod body, when the plate body is drawn out from casting sand, a conical flaring part is directly formed at the top of the pouring channel, so that the top of the pouring channel does not need to be flared, and the convenience and the production efficiency are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand casting accessories, in particular to a pouring port reserved component for sand casting. Background Art

[0002] Sand casting refers to a casting method that produces castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Since the molding materials used in sand casting are cheap and easy to obtain, the mold is easy to manufacture, and it can adapt to the single-piece production, batch production and mass production of castings, it has long been the basic process in casting production.

[0003] In the sand casting process, before filling the sand, a rod needs to stand in the mold and be connected to the mold cavity in the mold. After being pressed and scraped flat, the rod is pulled out to form a pouring port. The traditional rod is used as a pouring port reserved component. After being pulled out, it is necessary to manually expand the top of the pouring port to ensure that the molten metal does not flow out from the upper surface of the mold. The subsequent expansion method is inefficient and not convenient. Therefore, an improved technology is urgently needed to solve this problem in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide a pouring gate reserved component for sand casting. Through the cooperation of the pouring gate forming component and the rod body, when the plate body is pulled out from the casting sand, the top of the pouring channel directly forms a conical expansion part, thereby eliminating the need to expand the top of the pouring channel, greatly improving convenience and production efficiency, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pouring gate reservation component for sand casting, comprising a rod body, a pouring gate forming component and a screw knob, the rod body is inserted into the pouring gate forming component and is slidably connected with the pouring gate forming component; the pouring gate forming component comprises a sleeve and a tapered part, a tapered part is provided at the lower part of the sleeve, a channel is opened inside the tapered part, the channel inside the tapered part is connected with the inside of the sleeve, the sleeve and the tapered part are sleeved on the outside of the rod body, an internal threaded sleeve is provided on one side of the sleeve, the internal threaded sleeve is connected with the inner cavity of the sleeve, and the screw knob cooperates with the internal threaded sleeve.

[0006] Preferably, the utility model provides a pouring port reservation assembly for sand casting, wherein the sleeve and the cone are an integral structure.

[0007] Preferably, the utility model provides a pouring port reservation assembly for sand casting, wherein the inner diameter of the sleeve, the inner diameter of the channel opened by the tapered member and the outer diameter of the rod body are all consistent.

[0008] Preferably, the utility model provides a pouring port reservation assembly for sand casting, wherein the outer diameter of the conical member gradually decreases from an end close to the sleeve to an end away from the sleeve.

[0009] Preferably, the utility model provides a pouring port reservation assembly for sand casting, wherein the outer edge of the top of the conical part is also provided with a peripheral pressure plate.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] Through the cooperation between the runner gate forming assembly and the rod body, when the plate body is pulled out from the casting sand, the top of the pouring channel directly forms a conical expansion part, so there is no need to expand the top of the pouring channel, the convenience and production efficiency are greatly improved, at the same time, the sleeve and the cone of the runner gate forming assembly are slidably connected to the rod body and are fastened by a screw knob, so that it can be used in different cavities for molds of different depths, and the scope of application is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the runner gate molding component;

[0014] Figure 3 It is a schematic diagram of the relationship between the utility model and the mold position.

[0015] In the figure: rod body 1, runner gate forming component 2, screw knob 3, sleeve 201, tapered part 202, channel 203, internal thread sleeve 204, peripheral pressure plate 205. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solution of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model;

[0017] It should be noted that, in the description of the present invention, the terms "inside", "outside", "upper", "lower", "both sides", "one end", "the other end", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0018] See also Figure 1-2 The utility model provides a technical solution: a pouring gate reserved component for sand casting, comprising a rod body 1, a runner gate forming component 2 and a screw knob 3, the rod body 1 is penetrated through the runner gate forming component 2 and is slidably connected to the runner gate forming component 2; the runner gate forming component 2 comprises a sleeve 201 and a tapered part 202, a tapered part 202 is arranged at the lower part of the sleeve 201, the sleeve 201 and the tapered part 202 are an integrated structure, which ensures the structural strength of the runner gate forming component 2 and is convenient for processing and production, the outer diameter of the tapered part 202 gradually decreases from the end close to the sleeve 201 to the end away from the sleeve 201, thereby realizing the formation of the runner and having a tapered structure, a channel 203 is opened inside the tapered part 202, and the inside of the tapered part 202 The channel 203 is interconnected with the interior of the sleeve 201, and the sleeve 201 and the tapered member 202 are sleeved on the outside of the rod body 1. The inner diameter of the sleeve 201, the inner diameter of the channel 203 opened by the tapered member 202 and the outer diameter of the rod body 1 are all consistent, thereby ensuring the stability of the connection between the rod body 1, the sleeve 201 and the tapered member 202 and reducing the error rate. An internal threaded sleeve 204 is provided on one side of the sleeve 201, and the internal threaded sleeve 204 is interconnected with the inner cavity of the sleeve 201. The screw knob 3 cooperates with the internal threaded sleeve 204, and an outer pressure plate 205 is also provided on the outer edge of the top of the tapered member 202, so that when the rod body 1 and the runner gate molding component 2 are taken out, the casting sand located outside the runner gate will not fall into the tapered area of ​​the runner gate, which can effectively prevent the casting sand from collapsing.

[0019] Usage and principle: First, put the runner molding assembly 2 on the rod body 1 through the sleeve 201 and the cone 202, and screw the screw knob 3 into the internal thread sleeve 204 on one side of the sleeve 201. According to the distance from the cavity to the upper surface of the mold, adjust the height of the runner molding assembly 2 so that the bottom of the rod body 1 is connected to the cavity and the upper surface of the cone 202 is flush with the upper surface of the mold. Then tighten the screw knob 3 so that the screw part of the screw knob 3 is pressed on the side wall of the rod body 1, so that the runner molding assembly 2 is firmly connected to the rod body 1. Then fill the sand, press it, and scrape it flat, as shown in the figure. Figure 3 As shown, the rod body 1 is then pulled out of the foundry sand to form a pouring channel 203, and a conical flared portion is directly formed at the top of the pouring channel 203. The utility model has a reasonable structure. Through the cooperation between the runner gate forming component 2 and the rod body 1, when the plate body is pulled out of the foundry sand, a conical flared portion is directly formed at the top of the pouring channel 203, so there is no need to flare the top of the pouring channel 203, which greatly improves convenience and production efficiency. At the same time, the sleeve 201 and the cone 202 of the runner gate forming component 2 are slidably connected to the rod body 1 and are fastened by the screw knob 3, so that they can be used with different cavities for molds of different depths, and the scope of application is greatly improved.

[0020] The details not described in the present invention are all known technologies to those skilled in the art.

[0021] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model is described in detail with reference to the embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A pouring port reserved component for sand casting, characterized in that: The invention comprises a rod body (1), a runner gate forming component (2) and a screw knob (3), wherein the rod body (1) is inserted into the runner gate forming component (2) and is slidably connected to the runner gate forming component (2); the runner gate forming component (2) comprises a sleeve (201) and a conical part (202), wherein the lower part of the sleeve (201) is provided with a conical part (202), wherein the interior of the conical part (202) is provided with a channel (203), wherein the interior of the conical part (202) and the interior of the sleeve (201) are mutually connected, wherein the sleeve (201) and the conical part (202) are sleeved on the outside of the rod body (1), wherein one side of the sleeve (201) is provided with an internal thread sleeve (204), wherein the internal thread sleeve (204) and the inner cavity of the sleeve (201) are mutually connected, and the screw knob (3) cooperates with the internal thread sleeve (204).

2. The pouring port reserved assembly for sand casting according to claim 1, characterized in that: The sleeve (201) and the cone (202) are an integral structure.

3. The pouring port reserved assembly for sand casting according to claim 1, characterized in that: The inner diameter of the sleeve (201), the inner diameter of the channel (203) opened by the conical member (202), and the outer diameter of the rod body (1) are all consistent.

4. The pouring port reserved assembly for sand casting according to claim 1, characterized in that: The outer diameter of the tapered member (202) gradually decreases from an end close to the sleeve (201) to an end away from the sleeve (201).

5. The pouring port reserved assembly for sand casting according to claim 1, characterized in that: The outer edge of the top of the conical member (202) is also provided with a peripheral pressing plate (205).

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