Device for preventing sand core from floating

Abstract

The utility model relates to a device for preventing a sand core from floating. The device comprises a first clamping mechanism, a vertical supporting piece, a second clamping mechanism and a bottom supporting piece, the first clamping mechanism and the second clamping mechanism are connected through a screw rod; the vertical supporting piece penetrates through the second clamping mechanism to clamp the top of the vertical supporting piece in the first clamping mechanism. The vertical supporting piece is arranged on the bottom supporting piece; the bottom supporting piece is arranged on the top surface of the sand core; the first clamping mechanism and the second clamping mechanism are arranged on the upper side and the lower side of a sand box belt correspondingly. According to the technical scheme, the problem that the sand core floats upwards in the casting and box burying operation can be solved, a universal device is provided for the technology where a standard core cannot be used, the problem that most of the sand cores float upwards can be solved, and the cost that castings are scrapped due to the size problem caused by floating of the sand cores is reduced.

Description

Technical Field

[0001] This utility model relates to the field of casting technology, and in particular to a device for preventing sand cores from floating during the box-closing operation in the casting industry. Background Technology

[0002] During the casting process, after the box is closed, the distance between the top surface of the sand core and the top surface of the sand box is small. After using resin sand to embed the box, the sand layer is thin, resulting in insufficient support for the sand core. During the molten iron pouring process, the excessive buoyancy after the molten iron is poured causes the sand core to float, directly or indirectly leading to quality problems in the casting or even scrapping it, increasing casting costs. Therefore, there is an urgent need for a device to prevent the sand core from floating, thus preventing non-standard castings caused by the sand core floating during the casting process. In the existing technology, supports are mainly used to support the sand core and the sand box belt. However, there is no unified standard for the support fixtures, and the support fixtures are very easy to fall off. Therefore, there is an urgent need for a universal special fixture to prevent the sand core from floating. Utility Model Content

[0003] Therefore, it is necessary to provide a device to prevent sand core floating, which addresses the problem of casting defects caused by the buoyancy of molten iron lifting the support fixture during the sand core embedding operation in the existing technology.

[0004] A device for preventing sand core from floating includes: a first clamping mechanism, a vertical support, a second clamping mechanism, and a bottom support;

[0005] The first clamping mechanism and the second clamping mechanism are connected by a screw;

[0006] The vertical support member passes through the second clamping mechanism and locks its top into the first clamping mechanism;

[0007] The vertical support member is mounted on the bottom support member;

[0008] The bottom support is set on the top surface of the sand core;

[0009] The first clamping mechanism and the second clamping mechanism are respectively installed on the upper and lower sides of the sand box belt.

[0010] In one embodiment, the bottom of the first clamping mechanism is a square frame welded from square steel, and a square steel is provided on the top of the square frame structure along the length direction.

[0011] In one embodiment, the vertical support structure consists of two parallel square steel bars vertically arranged on a single square steel bar.

[0012] In one embodiment, the second clamping mechanism is a square frame structure welded from square steel.

[0013] In one embodiment, the bottom support is two parallel square steel bars.

[0014] In one embodiment, the height difference between the vertical support and the sand box belt is greater than or equal to 50 mm.

[0015] In one embodiment, the first clamping mechanism and the second clamping mechanism are provided with a plurality of through holes.

[0016] In one embodiment, the two parallel square steel bars pass upward through the sand box belt.

[0017] The technical solution adopted in this utility model can achieve the following beneficial effects:

[0018] This utility model discloses a device for preventing sand core floating. A first clamping mechanism and a second clamping mechanism are arranged on the upper and lower sides of the sand box belt. These mechanisms stabilize the entire device while providing auxiliary support for the sand core through the sand box. A vertical support member passes through the sand box belt and connects to the first and second clamping mechanisms, while its height allows space for downward force application. A screw connecting the first and second clamping mechanisms applies a downward force to the entire device, pressing it firmly onto the sand core and preventing it from floating. This technical solution can solve the problem of sand core floating during casting box embedding operations. For processes where standard cores cannot be used, it provides a universal device that can solve most sand core floating problems, reducing the cost of scrapping castings due to dimensional issues caused by sand core floating. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the device;

[0020] Figure 2 Diagram showing the installation and use of the device;

[0021] Figure 3 A front view for device installation;

[0022] Figure 4 This is a schematic diagram of the first clamping mechanism;

[0023] Figure 5 This is a schematic diagram of a vertical support component;

[0024] Figure 6 This is a schematic diagram of the second clamping mechanism.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1-First clamping mechanism, 2-Vertical support, 3-Second clamping mechanism, 4-Bottom support, 5-Screw, 6-Sand box belt, 7-Sand core. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0028] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," "top," "bottom," "end," "top," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] A device for preventing sand core floating, used for fixing and supporting sand cores during box-laying operations, includes a first clamping mechanism 1, a vertical support 2, a second clamping mechanism 3, and a bottom support 4. This device uses a sand box to assist in fixing and supporting the sand core; specifically, as shown... Figure 1-3 As shown, the first clamping mechanism 1 and the second clamping mechanism 3 are respectively installed on the upper and lower sides of the sand box belt 6. The first clamping mechanism 1 and the second clamping mechanism 3 are connected by a screw 5. The vertical support member 2 passes through the bottom of the second clamping mechanism 3 from bottom to top and clamps the top of the second clamping mechanism 1. The vertical support member 2 is installed on the bottom support member 4. The bottom support member 4 is installed on the top surface of the sand core 7.

[0031] like Figure 4-6 As shown, the bottom of the first clamping mechanism 1 is a square frame welded from square steel, and a square steel is set on the top of the square frame along the length direction; the bottom of the vertical support 2 is a horizontally placed square steel, and two parallel square steels are vertically set on the horizontal square steel; the second clamping mechanism 3 is a square frame welded from square steel; furthermore, for the stability of the structure, the square steel used in the first clamping mechanism 1, the vertical support 2 and the second clamping mechanism 3 are all solid square steel; even further, the diameter of the solid square steel is 40mm-80mm.

[0032] like Figure 1-2 As shown, the bottom support 4 consists of two parallel square steel bars. Furthermore, the square steel bars of the bottom support 4 are hollow square steel bars with a diameter of 60mm-100mm. The bottom support 4 is placed flat on the top surface of the sand core 7, and the vertical support 2 is supported above the bottom support 4.

[0033] like Figure 2-3 As shown, during installation, the first clamping mechanism 1 is placed on the upper side of the sand box belt 6, and the second clamping mechanism 3 is placed on the lower side of the sand box belt 6. The bottom support 4 is placed flat on the top surface of the sand core 7. The bottom horizontal square steel of the vertical support 2 is placed on the bottom support 4. The two parallel square steels of the vertical support 2 pass through the middle of the frame structure of the second clamping mechanism 3 from bottom to top, and pass through the square grid of the sand box belt 6. Then, the top of the two parallel square steels is inserted into the bottom of the first clamping mechanism 1, so that the first clamping mechanism 1 is fitted onto the vertical support 2. The screw 5 is placed in the through hole corresponding to the first clamping mechanism 1 and the second clamping mechanism 3 to connect the first clamping mechanism 1 and the second clamping mechanism 3, and the nuts on both sides of the screw are tightened to make it clamped. Furthermore, in order to effectively adjust the size of the support force, the height difference between the vertical support 2 and the sand box belt 6 is greater than or equal to 50mm. Furthermore, the first clamping mechanism 1 and the second clamping mechanism 3 are provided with multiple through holes.

[0034] The present invention discloses a device for preventing sand core floating. During operation, the first clamping mechanism 1 and the second clamping mechanism 3 are located on the upper and lower sides of the sand box belt 6, respectively. The upper part of the vertical support member 2 is against the bottom of the first clamping mechanism 1, and the lower part is supported above the bottom support member 4. The height of the vertical support member 2 is more than 50mm higher than the sand box belt. Therefore, when the first clamping mechanism 1 and the second clamping mechanism 2 connected by the screw 5 tighten the nut, the vertical support member 2 will be subjected to a downward force, so that the bottom support member 4 is pressed on the sand core 7 as a whole, preventing the sand core 7 from floating during the molten iron pouring process.

[0035] The device for preventing sand core floating disclosed in this utility model can effectively solve the problem of sand core floating during casting embedding operations, and provides a universal device for casting embedding operations. This device can solve most of the sand core floating problems and reduce the cost of scrapping castings due to dimensional problems caused by sand core floating.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for preventing sand core floating, characterized in that, The device for preventing sand core from floating includes: a first clamping mechanism, a vertical support, a second clamping mechanism, and a bottom support; The first clamping mechanism and the second clamping mechanism are connected by a screw; The vertical support member passes through the second clamping mechanism and locks its top into the first clamping mechanism; The vertical support member is mounted on the bottom support member; The bottom support is installed on the top surface of the sand core; The first clamping mechanism and the second clamping mechanism are respectively installed on the upper and lower sides of the sand box belt.

2. The device for preventing sand core floating according to claim 1, characterized in that, The bottom of the first clamping mechanism is a square frame welded from square steel, and a square steel is provided on the top of the square frame structure along the length direction.

3. The device for preventing sand core floating according to claim 1, characterized in that, The vertical support structure consists of a square steel bar with two parallel square steel bars vertically mounted on it.

4. The device for preventing sand core floating according to claim 1, characterized in that, The second clamping mechanism is a square frame structure welded from square steel.

5. The device for preventing sand core floating according to claim 1, characterized in that, The bottom support consists of two parallel square steel bars.

6. The device for preventing sand core floating according to claim 1, characterized in that, The height of the vertical support member is more than 50mm higher than the sand box belt.

7. The device for preventing sand core floating according to claim 1, characterized in that, The first clamping mechanism and the second clamping mechanism are provided with multiple through holes.

8. The device for preventing sand core floating according to claim 3, characterized in that, The two parallel square steel bars pass upward through the sand box belt.

Images