Hoisting nose core box and nose core thereof

Abstract

The utility model discloses a hoisting nose core box and a nose core thereof, the hoisting nose core box comprises a first box body, a second box body, a first lock catch and a second lock catch, a core hole is formed in the middle of the first box body and the middle of the second box body, and the nose core used for injection molding is manufactured through the core hole; a first fixing groove is formed in one side face of the first box body, and a second fixing groove corresponding to the first fixing groove is formed in one surface of the second box body. Inserting blocks are arranged at the tail ends of the first lock catch and the second lock catch; and the first lock catch and the second lock catch are connected through the tensioning bolt, so that the first box body and the second box body are prevented from being scattered. The first box body and the second box body are closed together, then the two ends of the first box body and the second box body are connected and locked through the first lock catch and the second lock catch, the tensioning bolts at the two ends are rotated for tightening, then the nose core is manufactured through sand injection, the extruded nose core is placed in the boss, the hoisting hole core is closed to be in a circular shape with the size equal to that of a hoisting hole model, and the hoisting hole model is formed. And a boss with a draft angle is additionally arranged below the position of the designed hoisting hole.

Description

Technical Field

[0001] The utility model relates to the field of nose core boxes and nose cores, in particular to a hanging nose core box and a nose core thereof. Background Art

[0002] During casting production, according to conventional casting technology, a large core head must be made at the contact point between the lifting hole and the casting body to facilitate smooth demolding and core placement during molding production. However, the gap between the core heads during core placement often causes large burrs to form on the casting at the core head. These burrs are located at the corner between the lifting nose and the casting, making them difficult to trim and grind with grinding tools, which is time-consuming and labor-intensive. Utility Model Content

[0003] An object of the present utility model is to provide a hanging nose core box and a nose core thereof which can solve at least any aspect of the above-mentioned technical problems.

[0004] A further object of the present invention is to avoid the generation of large burrs on the core head of the casting and to reduce the grinding time.

[0005] Another further purpose of the utility model is to improve the qualified rate of products and casting effect.

[0006] In particular, the utility model provides a hanging nose core box, comprising a first box body and a second box body, wherein a core hole is formed in the middle of the first box body and the second box body; a first fixing groove is provided on one side of the first box body, and a second fixing groove corresponding to the first fixing groove is provided on one surface of the second box body;

[0007] The first lock buckle and the second lock buckle are both provided with an insert block at the end of the first lock buckle and the second lock buckle; and the first lock buckle and the second lock buckle are connected by a tension bolt.

[0008] Furthermore, the inserting blocks at one end of the first lock buckle and the second lock buckle are respectively inserted into the first fixing slot and the second fixing slot.

[0009] Furthermore, a gap is formed between the first box body and the second box body, and the gap is provided with a plurality of corners in opposite directions with the core hole as the center.

[0010] A nose core comprises the nose core arranged in the core hole, the first box body and the second box body, wherein the first box body and the second box body clamp the nose core.

[0011] The technical effects and advantages of this utility model are:

[0012] When in use, the utility model is constructed by bringing the first and second box bodies together, then connecting and locking the two ends through the first and second locks, rotating the tension bolts at both ends to tighten, and then forming a nose core by injecting sand. The extruded nose core is placed into the boss, and the hoisting hole core is made into a circular shape of the same size as the hoisting hole model. A boss with a draft angle is added below the designed hoisting hole position, with a width equal to the hoisting hole core head and a height that ensures that the nose core can be smoothly lowered into position. After pouring, the casting has small burrs and is in a position that is more convenient to polish and remove. This improves the finishing and polishing efficiency of the casting and makes it easier to ensure the smooth and beautiful appearance of the casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0014] Figure 1 This is a schematic structural diagram of the utility model.

[0015] Figure 2 This is a front view structural diagram of the utility model.

[0016] Figure 3 This is a schematic diagram of the nose core structure of the utility model.

[0017] In the figure: 1. first box body, 101. first fixing groove, 2. second box body, 201. second fixing groove, 3. core hole, 4. first locking buckle, 401. insert, 5. second locking buckle, 6. closing the gap, 7. tightening bolt. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Figure 1 This is a schematic structural diagram of the utility model. Figure 2 This is a front view structural diagram of the utility model. Figure 3 This is a schematic diagram of the nose core structure of the utility model.

[0020] The solution of this embodiment provides a hanging nose core box, including a first box body 1, a second box body 2, a first lock buckle 4 and a second lock buckle 5. A core hole 3 is formed in the middle of the first box body 1 and the second box body 2, and a nose core used for injection molding is made through the core hole 3; a first fixing groove 101 is provided on one side of the first box body 1, and a second fixing groove 201 corresponding to the first fixing groove 101 is provided on one surface of the second box body 2; an insert block 401 is provided at the end of the first lock buckle 4 and the second lock buckle 5; and the first lock buckle 4 and the second lock buckle 5 are connected by a tightening bolt 7 to prevent the entire first box body 1 and the second box body 2 from dispersing.

[0021] It should be further explained that the inserting blocks 401 at one end of the first lock buckle 4 and the second lock buckle 5 are respectively inserted into the first fixing groove 101 and the second fixing groove 201 , and the connection and fixation are achieved by inserting the inserting blocks 401 into the fixing grooves.

[0022] It should be further explained that a gap 6 is formed between the first box body 1 and the second box body 2, and the gap 6 is provided with multiple corners in opposite directions with the core hole 3 as the center. By providing multiple corners, longitudinal swing is avoided when the first box body 1 and the second box body 2 are connected, thereby avoiding the stability of the nose core after it is formed.

[0023] A nose core includes the nose core arranged in the core hole 3, the first box body 1 and the second box body 2, the first box body 1 and the second box body 2 clamping the nose core, and injecting sand into the core hole 3 to form the nose core.

[0024] Working principle of this utility model:

[0025] During use, the first box body 1 and the second box body 2 are brought together, and then the two ends are connected and locked by the first lock 4 and the second lock 5. The tension bolts 7 at both ends are rotated to tighten them. Then, a nose core is made by sand injection, and the extruded nose core is placed in the boss. The hoisting hole core is made into a circular shape of the same size as the hoisting hole model, and a boss with a draft angle is added below the designed hoisting hole position. The width is equal to the hoisting hole core head, and the height ensures that the nose core can be smoothly lowered into position. After pouring, the casting has small burrs and is in a position that is more convenient to polish and remove. This improves the efficiency of finishing and polishing the casting, and makes it easier to ensure the smooth and beautiful appearance of the casting.

[0026] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hanging nose core box, characterized in that: include, A first box body (1) and a second box body (2), wherein a core hole (3) is formed in the middle of the first box body (1) and the second box body (2); a first fixing groove (101) is provided on one side surface of the first box body (1), and a second fixing groove (201) corresponding to the first fixing groove (101) is provided on one surface of the second box body (2); A first lock buckle (4) and a second lock buckle (5), wherein the ends of the first lock buckle (4) and the second lock buckle (5) are both provided with an insert block (401); and the first lock buckle (4) and the second lock buckle (5) are connected via a tension bolt (7).

2. A hanging nose core box according to claim 1, characterized in that: The inserting blocks (401) at one end of the first locking buckle (4) and the second locking buckle (5) are respectively inserted into the first fixing groove (101) and the second fixing groove (201).

3. A hanging nose core box according to claim 1, characterized in that: A closing gap (6) is formed between the first box body (1) and the second box body (2), and the closing gap (6) is provided with a plurality of corners in opposite directions with the core hole (3) as the center.

4. A nose core, characterized in that: The nose core is arranged in the core hole (3) of the first box body (1) and the second box body (2) as claimed in claim 1, and the first box body (1) and the second box body (2) clamp the nose core.

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