Water channel sand core and water channel sand core box hot core box structure thereof

Abstract

The invention provides a water channel sand core which is simple in structure, a mold core can be pulled out after the sand core is formed, complete forming of the sand core is guaranteed, the water channel sand core is characterized in that the water channel sand core comprises a pulling block, the pulling block is of a conical structure, a plurality of pulling block guide rails are arranged on the pulling block, a plurality of inserts are arranged on the pulling block, and guide grooves are formed in the inserts; and the insert is connected with the pulling block through the pulling block guide rail to form a mold core structure. The invention also provides a hot core box structure of the water channel sand core box.

Description

Technical Field

[0001] The invention relates to the technical field of sand core forming dies, in particular to a waterway sand core and a waterway sand core box hot core box structure thereof. Background Art

[0002] The waterway structure is a coil structure. When making the waterway sand core, there are gaps between the single ring-shaped coils in the coil-shaped waterway sand core. The existing forming mold cannot be pulled out after the sand core is formed because the mold core is set in the sand core and the disk-shaped groove is formed on the mold core. Summary of the Invention

[0003] In response to the above technical problems, the present invention provides a waterway sand core with a simple structure. After the sand core is formed, the mold core can be pulled out to ensure the complete forming of the sand core. The present invention also provides a waterway sand core box hot core box structure.

[0004] The technical solution is as follows: a waterway sand core, characterized in that: it includes a pull-out block, the pull-out block is a conical structure, a plurality of pull-out block guide rails are provided on the pull-out block, a plurality of inserts are provided on the pull-out block, the inserts are provided with guide grooves, the inserts and the pull-out block are connected through the pull-out block guide rails to form a core structure.

[0005] Its further feature is that the insert is movably connected to the insert flange, and the drawer is connected to the drawer flange; the drawer guide rail is a dovetail groove structure, and six drawer guide rails are provided on the drawer.

[0006] A water channel sand core box hot core box structure, characterized in that: a water channel sand core box hot core box structure, which includes a movable side shell and a fixed side shell to form a sand core shell, a first guide rail is provided on both sides of the fixed side shell, a pumping block is provided in the sand core shell, the pumping block is a conical structure, a plurality of pumping block guide rails are provided on the pumping block, a plurality of inserts are provided on the pumping block, the inserts are connected to the pumping block through the pumping block guide rails, a guide groove is provided on the insert, the insert is movably connected to the insert flange, and the pumping block is connected to the pumping block flange, The insert flange is connected to the withdrawal block flange through a second guide rail; a guide plate is provided on the fixed side shell, the second guide rail is connected to the guide plate, a withdrawal block block is provided on the guide plate, and an insert block block is provided on the movable side shell corresponding to the insert flange; a withdrawal rod sleeve is provided between the movable side shell and the fixed side shell, a withdrawal block shaft is provided on the withdrawal block, and the withdrawal block shaft is provided in the withdrawal rod sleeve to form a withdrawal rod sleeve in which the withdrawal rod is provided as a whole; the withdrawal block is connected to the withdrawal rod, and the withdrawal rod is connected to the cylinder; an accessory slider is provided on the fixed side shell.

[0007] The present invention adopts the above-mentioned structure, the pulling rod is connected to the pulling block, the pulling block is a conical structure, a plurality of pulling block guide rails are provided on the pulling block, a plurality of inserts are provided on the pulling block, the inserts are provided with guide grooves, the inserts and the pulling block are connected through the pulling block guide rails to form a core structure, the pulling rod is connected to the pulling block for movement, and since the pulling block is conical, the inserts on the pulling block shrink radially, thereby separating the guide grooves provided on the inserts from the sand core, realizing the core pulling of the sand core, and the mold core can be pulled out, ensuring the complete molding of the sand core. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 Schematic diagram of the waterway sand core of the present invention; Figure 2 This is a schematic diagram of the waterway sand core box and hot core box structure when core extraction; Figure 3 It is a schematic diagram of the shrinkage of the waterway sand core box and hot core box structure; Figure 4 for Figure 2 and Figure 3 Left view of; Figure 5 This is a schematic diagram of the block extraction structure. DETAILED DESCRIPTION

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0010] See Figure 1 and Figure 5 A waterway sand core includes a pumping block 1, which has a conical structure. The pumping block 1 is provided with a plurality of pumping block guide rails 2, and a plurality of inserts 3 are provided on the pumping block 1. The inserts 3 are provided with guide grooves 4. The inserts 3 are connected to the pumping block 1 through the pumping block guide rails 2 to form a core structure. The pumping rod connects the pumping block to move. Since the pumping block is conical, the inserts on the pumping block shrink in the radial direction, so that the guide grooves provided on the inserts are separated from the sand core, realizing the core pulling of the sand core, and the core can be pulled out to ensure the complete molding of the sand core.

[0011] The pull-out block guide rail 2 is a dovetail groove structure. Preferably, six pull-out block guide rails 2 are provided on the pull-out block 1 to ensure the stability of the movement between the insert and the pull-out block.

[0012] The insert 3 is movably connected to the insert flange 5, and the drawer 1 is connected to the drawer flange 6, so as to realize the connection between the insert and the drawer and other components and realize the movement of the insert and the drawer.

[0013] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5, a waterway sand core box hot core box structure, which includes a movable side shell 7 and a fixed side shell 8 to form a sand core shell 9, a sand core shell 9 is provided with a sand inlet 10, and a first guide rail 11 is provided on both sides of the fixed side shell 8. A pumping block 1 is provided in the sand core shell 9, and the pumping block 1 is a conical structure. A plurality of pumping block guide rails 2 are provided on the pumping block 1, and a plurality of inserts 3 are provided on the pumping block 1. The inserts 3 are connected to the pumping block 1 through the pumping block guide rail 2, and a guide groove 4 is provided on the insert 3. The insert 3 is movably connected to the insert flange 5, and the pumping block 1 is connected to the pumping block flange 6. The insert flange 5 is connected to the pumping block flange 6 through the second guide rail 12. The pumping rod 13 pulls the pumping block 1 to move through the cylinder 14. Since the pumping block is conical, the insert on the pumping block contracts radially, so that the guide groove provided on the insert is separated from the sand core, realizing the core pulling of the sand core, and the mold core can be pulled out, ensuring the complete molding of the sand core.

[0014] A guide plate 15 is provided on the fixed side housing 8 , the second guide rail 11 is connected to the guide plate 15 , a block stopper 16 is provided on the guide plate 15 , and an insert stopper 17 is provided on the movable side housing 7 corresponding to the insert flange 5 .

[0015] A draw rod sleeve 18 is provided between the movable side shell 8 and the fixed side shell 9, and a draw block shaft 19 is provided on the draw block 1. The draw block shaft 19 is arranged in the draw rod sleeve 18, forming a draw rod sleeve in which the draw rod is arranged as a whole, ensuring the center stability of the draw rod, thereby ensuring the stable movement of the draw rod.

[0016] The pumping block 1 is connected to the pumping rod 13, and the pumping rod 11 is connected to the cylinder 14, thereby realizing the movement of the pumping rod.

[0017] The fixed side housing 8 is provided with an accessory slider 20 , which is separated during mold separation to ensure the mold separation and molding of the accessory 21 .

[0018] The working principle of the present invention will be described below with reference to the accompanying drawings: Meet Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The pumping rod 11 pulls the pumping block 1 to move through the pumping block flange 6. Due to the obstruction of the insert stopper 17, the insert flange 5 and the insert 3 movably connected thereto can only shrink radially, so that the guide groove 4 set on the insert 3 is separated from the sand core. When the pumping block flange 6 is pressed against the pumping block stopper 16, the pumping rod 13 continues to pull the pumping block flange 6 and drives the second guide rail 11 and the guide plate 14 to move. At the same time, the movable side shell 8 and the fixed side shell 9 are separated, and the insert stopper 17 is separated with the movable side shell 8. The insert flange 5 loses the resistance of the insert stopper 17. When the pumping block flange 6 drives the pumping block 1 and the guide plate 13 to continue to move, the guide plate 13 drives the insert 3 to move, thereby realizing complete separation of the entire waterway sand core from the sand mold, realizing the core pulling of the sand core, and the mold core can be pulled out, ensuring the complete molding of the sand core.

[0019] The present invention and its embodiments are described schematically above. This description is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention. The actual structure is not limited to this. As long as ordinary technicians in this field are inspired by it and do not deviate from the purpose of this invention, they can design structural methods and embodiments similar to the technical solution without creative design, which should fall within the scope of protection of the present invention.

Claims

1. A waterway sand core, characterized by: It includes a draw block, which is a conical structure. A plurality of draw block guide rails are provided on the draw block. A plurality of inserts are provided on the draw block. A guide groove is provided on the insert. The inserts are connected to the draw block through the draw block guide rails to form a core structure.

2. A waterway sand core according to claim 1, characterized in that: The insert is movably connected to the insert flange, and the withdrawal block is connected to the withdrawal flange.

3. The waterway sand core according to claim 1, characterized in that: The drawer block guide rail is a dovetail groove structure, and six drawer block guide rails are provided on the drawer block.

4. A waterway sand core box hot core box structure, characterized by: It includes a movable side shell and a fixed side shell to form a sand core shell, a first guide rail is provided on both sides of the fixed side shell, a pumping block is provided in the sand core shell, the pumping block is a conical structure, a plurality of pumping block guide rails are provided on the pumping block, a plurality of inserts are provided on the pumping block, the inserts are connected to the pumping block through the pumping block guide rails, a guide groove is provided on the insert, the insert is movably connected to the insert flange, the pumping block is connected to the pumping block flange, and the insert flange is connected to the pumping block flange through the second guide rail.

5. The waterway sand core box hot box structure according to claim 4, characterized in that: The fixed side housing is provided with a guide plate, the guide plate is provided with a block-drawing stopper, and the movable side housing is provided with an insert stopper corresponding to the insert flange.

6. The waterway sand core box hot box structure according to claim 5, characterized in that: A rod sleeve is provided between the movable side housing and the fixed side housing, a block shaft is provided on the block, and the block shaft is arranged in the rod sleeve to form a rod sleeve in which the rod is arranged as a whole.

7. The waterway sand core box hot box structure according to claim 4, characterized in that: The pumping block is connected to a pumping rod, and the pumping rod is connected to a cylinder.

8. The waterway sand core box hot box structure according to claim 4, characterized in that: An accessory slider is provided on the fixed side housing.

Images