Tool suitable for placing and transferring small-caliber sand cores

Abstract

The utility model discloses a tool suitable for placing and transferring a small-caliber sand core, which comprises a sand core and a tool for placing the sand core, the bottom of the sand core is recessed inwards to form a groove, the groove is in a trend of shrinking from outside to inside, the top of the tool is provided with a plurality of bulges corresponding to the sand core, and the bulges are inserted into the groove to guarantee the stability of the sand core. According to the characteristic that the bottom of the sand core is hollow, a corresponding wooden tool is manufactured to assist the sand core to be placed stably and vertically. And the tool can be placed on a tray, so that the sand core is convenient to transfer.

Description

Technical Field

[0001] This utility model relates to the field of sand core production technology, specifically a tooling suitable for placing and transporting small-diameter sand cores. Background Technology

[0002] Ductile iron tee and tee fittings are the most common and highest-volume category of ductile iron pipe fittings. Our company mainly produces tee and tee fittings with diameters ranging from DN40 to DN300, with DN80-DN100 straight pipes being the most produced. The sand cores used in forming these fittings are characterized by their small diameter and light weight, making them extremely prone to instability and tipping during transport. This leads to damage and scrapping of the sand cores, and even minor repairs can easily increase the amount of grinding work required. Utility Model Content

[0003] The purpose of this invention is to provide a tooling suitable for placing and transporting small-diameter sand cores, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tooling suitable for placing and transporting small-diameter sand cores, comprising a sand core and a tooling for placing the sand core, wherein the bottom of the sand core is recessed inward to form a groove, the groove having a contraction trend from the outside to the inside, and the top of the tooling is provided with multiple protrusions corresponding to the sand core, the protrusions being inserted into the groove to ensure the stability of the sand core.

[0005] Preferably, a tray is provided below the tooling, the tooling is placed flat on the tray, and the gap between the edge of the tooling and the four flanges of the tray is less than 5mm.

[0006] Preferably, the groove has a circular cross-section, and the protrusion is cylindrical with rounded corners at the top.

[0007] Preferably, the spacing between any two adjacent protrusions on the tooling is 110mm, the distance between the outermost protrusion and the edge of the tooling is greater than 75mm, the outer diameter of the sand core is 80mm, the maximum diameter of the groove is 40mm, and the outer diameter of the protrusion is 32mm.

[0008] Preferably, the tooling is made of wood and the surface of the tooling is sanded smooth.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] This utility model discloses a tooling suitable for placing and transporting small-diameter sand cores. Taking advantage of the hollow bottom of the sand core, a corresponding wooden tooling is manufactured to assist in placing the sand core stably and upright. Furthermore, the tooling can be placed on a pallet for easy transport of the sand core. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the sand core structure in this utility model;

[0012] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0013] Figure 3 for Figure 2 Top view;

[0014] Figure 4 This is a top view of the tooling in this utility model;

[0015] Figure 5 This is a side view and a partial schematic diagram of the tooling in this utility model.

[0016] In the diagram: 1. Sand core; 2. Tooling; 3. Tray; 4. Protrusion; 5. Groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Figure 1 This is sand core 1 for on-site production of double-disc short pipes in sizes DN80x100, DN80x150, and DN80x200 (where 100, 150, and 200 are the pipe lengths). Sand core 1 is 300mm long. This type of sand core 1 has a small diameter and is top-heavy, making it extremely difficult to secure on pallet 3 and transport within the workshop. Without proper restraint, tipping and damage to sand core 1 are almost inevitable.

[0019] Based on the hollow bottom of sand core 1, a corresponding wooden fixture 2 is made to assist in placing sand core 1 (wooden structures are lightweight, easy to handle, and have low production costs), ensuring its stability and upright position. Furthermore, fixture 2 can be placed on a pallet 3 for easy transport of sand core 1. Fixture 2 and pallet 3 can be combined or separated, so that even when no such sand core is available on site, pallet 3 can still facilitate the normal use of other sand cores.

[0020] The specific structure is as follows: (Reference) Figure 1-5The fixture 2 is placed on the tray 3, and the fixture 2 fits snugly against the tray 3 with a gap of less than 5mm, facilitating the insertion and removal of the tray 3. Simultaneously, there is no significant relative movement between the tray 3 and the fixture 2, thus preventing large impacts and vibrations to the sand core 1 and ensuring its integrity is not damaged. The bottom of the sand core 1 has a groove 5 that tapers inwards. Multiple corresponding protrusions 4 are provided on the fixture 2, with rounded corners at the top. The protrusions 4 are inserted into the groove 5 in the sand core 1, and the fit between the protrusions 4 and the groove 5 prevents the sand core 1 from wobbling and tipping over.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture suitable for placing and transporting small-diameter sand cores, comprising a sand core (1) and a fixture (2) for placing the sand core (1), characterized in that: The bottom of the sand core (1) is recessed inward to form a groove (5). The groove (5) has a shrinking trend from the outside to the inside. The tool (2) is provided with multiple protrusions (4) corresponding to the sand core (1). The protrusions (4) are inserted into the groove (5) to ensure the stability of the sand core (1).

2. The tooling suitable for placing and transporting small-diameter sand cores according to claim 1, characterized in that: A tray (3) is provided below the tooling (2). The tooling (2) is placed flat on the tray (3), and the gap between the edge of the tooling (2) and the four-sided flange of the tray (3) is less than 5mm.

3. The tooling suitable for placing and transporting small-diameter sand cores according to claim 2, characterized in that: The groove (5) has a circular cross-section, and the protrusion (4) is cylindrical with rounded corners at the top.

4. The tooling suitable for placing and transporting small-diameter sand cores according to claim 3, characterized in that: The distance between any two adjacent protrusions (4) on the tooling (2) is 110mm, the distance between the outermost protrusion (4) and the edge of the tooling (2) is greater than 75mm, the outer diameter of the sand core (1) is 80mm, the maximum diameter of the groove (5) is 40mm, and the outer diameter of the protrusion (4) is 32mm.

5. The tooling suitable for placing and transporting small-diameter sand cores according to claim 1, characterized in that: The tool (2) is made of wood and the surface of the tool (2) has been polished smooth.

Images