Moving cone lining plate pouring system

Abstract

The utility model belongs to the technical field of movable cone lining plate pouring of cone crushers, and particularly relates to a movable cone lining plate pouring system which comprises a conical sand box, a small opening of the conical sand box faces upwards, a large opening of the conical sand box faces downwards, the conical sand box sequentially comprises a base, a middle box and an upper box from bottom to top, and four risers are arranged on the inner conical surface of the conical sand box in the circumferential direction; the sprue sand box is vertically arranged beside the conical sand box, a sprue ceramic pipe is arranged in the sprue sand box, and molding sand is filled between the sprue ceramic pipe and the sprue sand box; the plurality of ingates are arranged on the base and are connected with the sprue sand box through the cross gates. The small opening of the sand box is upward, the large opening of the sand box is downward, the four risers are arranged on the outer conical surface, and the pouring system is arranged outside the casting, so that the casting process has the advantages that the machining surface of the fixed cone lining plate is placed downwards, casting defects such as sand holes and air holes are not easy to generate on the machining surface, and a sand core does not need to be hoisted; and the box closing is accurate, the box deviation defect is not easy to generate, and the device is particularly suitable for lining plates with small opening sizes.

Description

Technical Field

[0001] This utility model belongs to the field of manufacturing moving cone liners for cone crushers, and in particular relates to a casting system for moving cone liners. Background Technology

[0002] The moving and stationary cone liners in cone crushers are common high-manganese steel wear-resistant parts. The moving cone liner is typically produced using a casting process. Figure 1 A schematic diagram of the liner casting structure for a gating system in the prior art is shown below. Figure 1 As shown, after casting, the large opening of the original casting liner 14 faces upwards and the small opening faces downwards, with four risers inside the cavity. The gating system is located inside the intermediate sand core. The advantages of this casting process are: the crushing surface of the fixed cone liner faces downwards, reducing the likelihood of casting defects such as sand holes and porosity; and the gating system being located inside the intermediate sand core does not occupy a large sand box area. The disadvantages are: casting defects are easily generated on the machined surfaces, causing difficulties in machining; the core iron placed inside the sand core may conflict with the gating system in position; sand adhesion defects are prone to occur at the riser roots; venting of the casting is not smooth, requiring numerous venting holes; and especially when the small opening of the liner is too small, the placement of the central core is unstable, easily leading to misalignment defects. Utility Model Content

[0003] The purpose of this invention is to provide a dynamic cone liner casting system in which the sprue sand box is located outside the sand core, reducing the difficulty of production operations and reducing casting defects.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] This utility model provides a dynamic cone liner casting system, including: a conical sand box, wherein the small opening of the conical sand box faces upward and the large opening faces downward, the conical sand box includes a base, a middle box and an upper box from bottom to top, the upper box is provided with a first grid disc-shaped box strip, the base is provided with a second grid disc-shaped box strip, and four risers are provided circumferentially on the conical surface inside the conical sand box;

[0006] A direct sprue sand box is vertically arranged next to the conical sand box. A direct sprue ceramic tube is provided inside the direct sprue sand box. Molding sand is filled between the direct sprue ceramic tube and the direct sprue sand box. A pouring cup is provided at the top of the direct sprue sand box.

[0007] Multiple ingates are provided on the base and are connected to the sprue sand box via a horizontal runner.

[0008] Preferably, the side wall of the direct casting sand box is provided with several vent holes.

[0009] Preferably, the base is provided with a handle.

[0010] Preferably, the direct pouring sand box is located at the box handle and is secured with a box clamp.

[0011] Preferably, the plurality of ingates and the horizontal runner are all made of ceramic tubes. The plurality of ingates are distributed circumferentially along the base and are connected to the ceramic tubes of the sprue through the horizontal runners. The horizontal runners are connected to each of the ingates through pipe joints.

[0012] Preferably, the cross-sectional diameter of the horizontal sprue is the sum of the cross-sectional diameters of the plurality of ingates.

[0013] The beneficial effects of this utility model are as follows: In the moving cone liner casting system of this utility model, the small opening of the sand box faces upward and the large opening faces downward. The conical surface inside the conical sand box is provided with four risers. The casting system is set outside the casting. After casting, the four risers are on the outer conical surface of the liner. The advantage of this casting process is that the machined surface of the fixed cone liner is placed downward, and the machined surface is less likely to produce casting defects such as sand holes and air holes. Unlike the existing sprue set inside the sand box, the sprue sand box of this utility model is set outside the conical sand box. It is less likely to cause blasting accidents during casting, improves the safety of the casting system, ensures accurate box closing, and is less likely to produce box deviation defects. It is especially suitable for liners with small opening sizes.

[0014] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0015] The above and other objects, features, and advantages of this invention will become more apparent from the more detailed description of exemplary embodiments of the invention in conjunction with the accompanying drawings. In the exemplary embodiments, the same reference numerals generally denote the same components.

[0016] Figure 1 A schematic diagram of the liner casting structure for a gating system in the prior art.

[0017] Figure 2 This is a schematic diagram of the structure of a moving cone liner casting system according to an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of a moving cone liner casting system according to an embodiment of the present invention.

[0019] Figure 4 This is a schematic diagram of the base of a conical sand box according to an embodiment of the present invention.

[0020] Figure 5 This is a schematic diagram of the structure of a sand box for direct casting in one embodiment of the present invention.

[0021] Figure 6This is a schematic diagram of the liner casting structure of the casting system according to an embodiment of the present invention.

[0022] Figure 7 This is a schematic diagram of a wooden structure according to an embodiment of the present invention.

[0023] Figure 8 This is a schematic diagram of the middle box of a conical sand box according to an embodiment of the present invention.

[0024] Figure 9 This is a schematic diagram of the pipe connector according to an embodiment of the present invention.

[0025] Figure label:

[0026] 1. Base; 2. Middle box; 3. Upper box; 4. First grid disc-shaped box strip; 5. Second grid disc-shaped box strip; 6. Riser; 7. Sprue sand box; 8. Sprue ceramic tube; 9. Pour cup; 10. Ingate; 11. Stream runner; 12. Box handle; 13. Box clip; 14. Original liner casting; 15. Wooden pattern; 16. Liner casting; 17. Riser support handle; 18. Pipe fitting. Detailed Implementation

[0027] Preferred embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

[0028] like Figures 2-9 As shown, an embodiment of the present invention includes a moving cone liner casting system comprising: a conical sand box with its large opening facing down and its small opening facing up; the conical sand box comprising, from bottom to top, a base 1, a middle box 2, and an upper box 3; the upper box 3 having a first grid disc-shaped box band 4; the base having a second grid disc-shaped box band 5; and four risers 6 arranged circumferentially on the conical surface inside the conical sand box; a sprue sand box 7, which is vertically arranged beside the conical sand box; a sprue ceramic tube 8 inside the sprue sand box 7; molding sand filling the space between the sprue ceramic tube 8 and the sprue sand box 7; and a pouring cup 9 at the top of the sprue sand box 7; and multiple ingates 10, which are arranged on the base 1 and connected to the sprue sand box 7 via a horizontal gating system 11.

[0029] Specifically, during the molding of the moving cone liner casting system, four ingates 10 are laid inside the base 1 of the conical sand box using ceramic tubes to form a bottom-filling sprue. After molding, the conical sand box does not need to be turned over. The ceramic tubes are multi-segmented, and the contact gap between adjacent ceramic tubes is sealed with adhesive tape to prevent sand from entering. Elbow-type ceramic tubes are used at bends.

[0030] like Figures 3-8 As shown, when installing the gating system, step 1: install the conical sand box; step 2: install the ingate 10 and the sprue sand box 7; step 3: place the wooden mold 15 with the large opening facing down and the small opening facing up inside the conical sand box; step 4: the riser 6 is a side riser, and the riser 5 is placed on the outer conical surface of the wooden mold 15 through the riser support 17; step 5: fill the conical sand box with molding sand. The second grid disc-shaped box belt 5 is used to support the hardened molding sand at the bottom of the conical sand box. The first grid disc-shaped box belt 5 is used to fix the hardened molding sand at the top of the conical sand box during pouring, increasing the stability of the conical sand box during pouring and preventing the molten steel from lifting the upper box 3. Step 6: After the molding sand hardens, riser 6 is fixed in the molding sand. The upper box 3 is lifted, the wooden pattern 15 is removed, and then the upper box 3 is reinstalled to obtain the moving cone liner casting system. A sand core is formed at the wooden pattern 15 inside the conical sand box. After removing the wooden pattern 15, the casting cavity for the liner is obtained. Molten steel is poured from the ingate 10 of the base 1 into the casting cavity through the sprue sand box 7. Finally, the molten steel overflows from the top of riser 6, ensuring the casting cavity is filled with molten steel. After the molten steel solidifies, the desired result is obtained. Figure 6 The moving cone liner casting 16 shown is obtained by removing the riser and sprue on the liner through machining.

[0031] In this embodiment of the moving cone liner gating system, after the casting has cooled for 40 minutes, the box clamp 13 is removed, and the sprue sand box 7 is hoisted. The sprue sand box 7 is broken by its own weight. Before hoisting, the sprue sand box 7 is hoisted first, which breaks the sprue sand box 7, thereby directly removing the sprue and facilitating the hoisting and unpacking of the casting.

[0032] In this embodiment, the side wall of the direct casting sand box 7 is provided with several vent holes (not shown). When molten steel is poured into the direct casting sand box, the air inside the direct casting sand box 7 is heated and expanded, and the gas is discharged through the vent holes.

[0033] In this embodiment, as Figure 4 and Figure 5As shown, the base 1 has a handle 12, which is used to install the sprue sand box 7. The sprue sand box 7 is positioned at the handle 12 and secured with a clamp 13. Specifically, when the sprue is assembled, the sprue sand box 7 is placed at the handle 12 and secured with the clamp 13. The sprue ceramic tube 8 is placed inside the sprue sand box 2; molding sand is filled between the sprue ceramic tube 8 and the sprue sand box 2 and compacted. A pouring cup 9 is placed at the top. When assembling the moving cone liner casting system, the sprue fabrication is simplified, the workload is reduced, and labor efficiency is increased by 50%.

[0034] In this embodiment, as Figure 3 As shown, multiple ingates 10 and sprues 11 are all made of ceramic tubes. The multiple ingates 10 are distributed circumferentially along the base 1 and are connected to the sprue ceramic tubes 8 via the sprues 11. The sprues 11 are connected to each ingate 10 via pipe joints 18. The cross-sectional diameter of the sprues 11 is the sum of the cross-sectional diameters of the multiple ingates 10, thereby uniformly pouring molten steel into each ingate 10.

[0035] In this embodiment, the moving cone liner casting system has the small opening of the sand box facing upwards and the large opening facing downwards. Four risers 6 are set on the outer cone surface. The casting system is set outside the casting. The advantages of this casting process are that the machined surface of the fixed cone liner is placed downwards, and the machined surface is less likely to produce casting defects such as sand holes and air holes. The sand core does not need to be hoisted. The box is accurately closed and is less likely to produce box deviation defects. It is especially suitable for liners with a small opening size.

[0036] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A casting system for a moving cone liner, characterized in that, include: A conical sand box, wherein the small opening of the conical sand box faces upward and the large opening faces downward, the conical sand box includes a base, a middle box and an upper box from bottom to top, the upper box is provided with a first grid disc-shaped box belt, the base is provided with a second grid disc-shaped box belt, and four risers are provided circumferentially on the conical surface inside the conical sand box; A direct sprue sand box is vertically arranged next to the conical sand box. A direct sprue ceramic tube is provided inside the direct sprue sand box. Molding sand is filled between the direct sprue ceramic tube and the direct sprue sand box. A pouring cup is provided at the top of the direct sprue sand box. Multiple ingates are provided on the base and are connected to the sprue sand box via a horizontal runner.

2. The moving cone liner casting system according to claim 1, characterized in that, The side wall of the direct pouring sand box is provided with several vent holes.

3. The moving cone liner casting system according to claim 1, characterized in that, The base is equipped with a handle.

4. The moving cone liner casting system according to claim 3, characterized in that, The sand box for direct pouring is located at the handle of the box and is secured with a box clamp.

5. The casting system for the moving cone liner according to claim 1, characterized in that, The multiple ingates and the horizontal runners are all made of ceramic tubes. The multiple ingates are distributed around the circumference of the base and are connected to the ceramic tubes of the vertical runners through the horizontal runners. The horizontal runners are connected to each of the ingates through pipe joints.

6. The casting system for the moving cone liner according to claim 1, characterized in that, The cross-sectional diameter of the horizontal sprue is the sum of the cross-sectional diameters of the plurality of ingates.

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