Sand core forming device for casting production

Abstract

The utility model discloses a sand core forming device for casting production, and relates to the technical field of casting production, the sand core forming device comprises a table top, a pressing device is arranged at the top end of the table top, a mold assembly is placed at the top end of the table top, and the mold assembly comprises two bottom plates. Wherein the top end of one bottom plate is fixedly connected with a first template, the top end of the other bottom plate is fixedly connected with a second template, the top end of the second template is fixedly connected with a fixing rod, the outer surfaces of the two bottom plates are each provided with two supporting frames, and mortar is arranged in the two supporting frames; the sand core forming device comprises two supporting frames, the two ends of the two supporting frames are fixedly connected with handles, the inner walls of one sides of the two handles are fixedly connected with clamping plates, and one ends of every two adjacent clamping plates are jointly provided with an inserting rod in an inserting mode. And the mortar model can be effectively extruded and formed.

Description

Technical Field

[0001] The utility model relates to the technical field of casting production, in particular to a sand core molding device for casting production. Background Art

[0002] Casting through molds is one of the commonly used manufacturing methods for various parts. In actual use, sand cores are generally required to be used in conjunction with molds. Since sand cores are consumables, they need to be produced in large quantities. The sand cores themselves are also manufactured through molds. The main material is special mortar. The molding sand is made into a model before casting. Usually after the sand casting is completed, the casting must be taken out before it can be used. Sand core castings are often used on cranes and hoisting machines.

[0003] However, the prior art still has the following problems:

[0004] Firstly, when the sand core molding devices used in the prior art for casting production are used to cast sand cores, most of the sand core molding devices cannot effectively cast the sand cores, resulting in the sand cores failing to meet the product standards during casting, which causes the staff to rework them, affecting the processing efficiency of the sand core castings.

[0005] Secondly, since the sand core molding device used in casting production requires pouring mortar into the sand core molding device for extrusion and deformation to form a model made of molding sand, the sand core molding devices currently on the market cannot effectively extrude the mortar model into shape.

[0006] In view of the above problems, the inventor proposes a sand core molding device for casting production to solve the above problems. Utility Model Content

[0007] In order to solve the problem that the sand core cannot be effectively cast and the mortar model cannot be effectively extruded and formed; the purpose of the utility model is to provide a sand core molding device for casting production.

[0008] In order to solve the above technical problems, the utility model adopts the following technical scheme: a sand core molding device for casting production, comprising a table top, a pressing device is provided at the top of the table top, a mold assembly is placed at the top of the table top, the mold assembly comprises two bottom plates, a first template is fixedly connected to the top of one of the bottom plates, a second template is fixedly connected to the top of the other bottom plate, a fixing rod is fixedly connected to the top of the second template, two support frames are provided on the outer surfaces of the two bottom plates, mortar is provided inside the two support frames, handles are fixedly connected at both ends of the two support frames, a card is fixedly connected to one side inner wall of the two handles, an insertion rod is commonly inserted at one end of each two adjacent card plates, the two insertion rods are respectively inserted into the inner walls of the two card plates to connect the two support frames, a first through groove is provided inside the one of the mortars, a second through groove is provided inside the other of the mortars, the outer surface of the first template is fitted with the inner wall of the first through groove, and the outer surface of the second template is fitted with the inner wall of the second through groove.

[0009] Preferably, the pressing device includes three gears, the outer surfaces of the three gears are meshed together with a chain, the bottom end of the table is fixedly connected to a motor, the output end of the motor is fixedly connected to the top of the gear close to the middle, the tops of the gears on both sides are fixedly connected to screw rods, the outer surfaces of the two screw rods are sleeved with sliders, the rotation of the screw rods drives the sliders to move, one end of the opposite surfaces of the two sliders are commonly fixedly connected to a top plate, the top of the table is fixedly connected to four support rods distributed in a rectangular array, the four support rods and the tops of the two screw rods are fixedly connected to a limiting plate, the bottom end of the top plate is fixedly connected to a pressure plate, and the outer surface of the pressure plate fits against the inner wall of the support frame.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can pour out the mortar that has been cooled after compaction, turn over two mortars to align them up and down, put the two mortars into two support frames again, pour the metal liquid for casting into the inner wall of the fixing rod where the mortar leaks out, pour out the mortar when the metal liquid cools, cut off the metal formed on the inner wall of the two fixing rods, and grind the outer surface of the product to obtain the finished product, thereby achieving the purpose of effectively casting the sand core;

[0012] 2. The utility model can drive the pressing plate to descend and fit and squeeze with the inner wall of the support frame when the top plate moves downward. The pressing plate compacts the mortar in the inner walls of the two support frames, thereby achieving the purpose of effectively extruding the mortar model into shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a schematic diagram of the structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the pressing device of the utility model.

[0016] Figure 3 It is a schematic diagram of the mold assembly of the utility model.

[0017] Figure 4 It is a side schematic diagram of the mold assembly of the utility model.

[0018] Figure 5 It is a schematic diagram of the mold assembly of the utility model.

[0019] Figure 6 This is a schematic diagram of the internal structure of the mold assembly of the utility model.

[0020] Figure 7 This is a schematic diagram of the internal structure of the mold assembly of the utility model from another perspective.

[0021] In the figure: 1, table; 2, pressing device; 3, mold assembly; 4, first through slot; 5, second through slot; 21, gear; 22, chain; 23, motor; 24, screw; 25, slider; 26, top plate; 27, support rod; 28, limit plate; 29, pressure plate; 30, bottom plate; 31, first template; 33, second template; 34, fixing rod; 35, support frame; 36, handle; 37, clamping plate; 38, mortar; 39, plug rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1: Figure 1-7 As shown, the utility model provides a sand core molding device for casting production, comprising a table 1, a pressing device 2 is provided on the top of the table 1, and a mold assembly 3 is placed on the top of the table 1;

[0024] The mold assembly 3 includes two bottom plates 30, wherein the top of one bottom plate 30 is fixedly connected to a first template 31, the top of the other bottom plate 30 is fixedly connected to a second template 33, the top of the second template 33 is fixedly connected to a fixing rod 34, the outer surfaces of the two bottom plates 30 are provided with two support frames 35, the interiors of the two support frames 35 are provided with mortar 38, both ends of the two support frames 35 are fixedly connected to handles 36, the inner walls of one side of the two handles 36 are fixedly connected to a clamping plate 37, one end of each two adjacent clamping plates 37 is commonly inserted with an insertion rod 39, the two insertion rods 39 are respectively inserted into the inner walls of the two clamping plates 37 to connect the two support frames 35;

[0025] A first through groove 4 is provided inside one of the mortars 38, and a second through groove 5 is provided inside the other mortar 38. The outer surface of the first template 31 fits with the inner wall of the first through groove 4, and the outer surface of the second template 33 fits with the inner wall of the second through groove 5.

[0026] The pressing device 2 includes three gears 21, and the outer surfaces of the three gears 21 are meshed with chains 22. A motor 23 is fixedly connected to the bottom end of the table top 1, and the output end of the motor 23 is fixedly connected to the top of the gear 21 in the middle. The tops of the gears 21 on both sides are fixedly connected with screw rods 24, and the outer surfaces of the two screw rods 24 are sleeved with sliders 25. One end of the opposite surfaces of the two sliders 25 is commonly fixedly connected to a top plate 26. Four support rods 27 distributed in a rectangular array are fixedly connected to the top of the table top 1. The four support rods 27 and the tops of the two screw rods 24 are fixedly connected to a limiting plate 28. A pressing plate 29 is fixedly connected to the bottom end of the top plate 26. The outer surface of the pressing plate 29 fits the inner wall of the support frame 35. The movement of the two sliders 25 drives the top plate 26 downward. When the top plate 26 moves downward, it drives the pressing plate 29 to descend and fits and squeezes with the inner wall of the support frame 35. The pressing plate 29 compacts the mortar 38 in the inner walls of the two support frames 35.

[0027] Working principle: First, pour the mortar 38 into the two support frames 35. Since the two bottom plates 30 are in the inner walls of the support frames 35, the mortar 38 fills the inner walls of the support frames 35 when the mortar 38 is poured in.

[0028] When the mortar 38 needs to be extruded, the motor 23 in the pressing device 2 is turned on, and the output end of the motor 23 rotates to drive the middle gear 21 to rotate, and the rotation of the middle gear 21 drives the chain 22 to rotate, and the rotation of the chain 22 drives the gears 21 on both sides to rotate, and the rotation of the gears 21 on both sides respectively drives the screw rod 24 to rotate, and the rotation of the screw rod 24 respectively drives the slider 25 to move, and the movement of the two sliders 25 jointly drives the top plate 26 to move downward, and when the top plate 26 moves downward, it drives the pressing plate 29 to descend and fit with the inner wall of the support frame 35 for extrusion, and the pressing plate 29 compacts the mortar 38 in the inner walls of the two support frames 35, which can effectively extrude the sand core model into shape;

[0029] Pour out all the mortar 38 that has been cooled after compaction, turn over the two mortars 38 to align them up and down, put the two mortars 38 into the two support frames 35 again, insert the two 39 insertion rods into the inner walls of the two 37 clamps respectively, connect the two support frames 35, pour the metal liquid for casting into the inner walls of the 34 fixing rods where the mortar 38 leaks out, and when the metal liquid cools, pour out the mortar 38, cut off the metal formed on the inner walls of the two 34 fixing rods, and grind the outer surface of the product to obtain the finished product, thereby achieving the purpose of effectively casting the sand core.

[0030] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A sand core forming device for casting production, comprising a table (1), characterized in that: A pressing device (2) is provided at the top of the table top (1), and a mold assembly (3) is placed at the top of the table top (1); The mold assembly (3) comprises two base plates (30), wherein the top end of one of the base plates (30) is fixedly connected to a first template (31), and the top end of the other base plate (30) is fixedly connected to a second template (33), and the top end of the second template (33) is fixedly connected to a fixing rod (34), and the outer surfaces of the two base plates (30) are each provided with two support frames (35), and both ends of the two support frames (35) are fixedly connected to handles (36), and one side inner wall of the two handles (36) is fixedly connected to a clamping plate (37).

2. A sand core forming device for casting production as claimed in claim 1, characterized in that: The pressing device (2) comprises three gears (21), the outer surfaces of the three gears (21) are meshedly connected with a chain (22), the bottom end of the table (1) is fixedly connected with a motor (23), the output end of the motor (23) is fixedly connected with the top of the gear (21) near the middle, the tops of the gears (21) on both sides are fixedly connected with screw rods (24), the outer surfaces of the two screw rods (24) are sleeved with sliders (25), one end of the opposite surfaces of the two sliders (25) is fixedly connected with a top plate (26), the top of the table (1) is fixedly connected with four support rods (27) distributed in a rectangular array, and the bottom end of the top plate (26) is fixedly connected with a pressing plate (29).

3. A sand core molding device for casting production as claimed in claim 1, characterized in that: An insertion rod (39) is commonly inserted into one end of each two adjacent clamping plates (37).

4. A sand core forming device for casting production as claimed in claim 2, characterized in that: The top ends of the four support rods (27) and the two screw rods (24) are all fixedly connected to a limiting plate (28).

5. A sand core molding device for casting production as claimed in claim 2, characterized in that: The outer surface of the pressing plate (29) is in contact with the inner wall of the supporting frame (35).

6. A sand core molding device for casting production as claimed in claim 1, characterized in that: Mortar (38) is provided inside the two support frames (35).

7. A sand core forming device for casting production as claimed in claim 6, characterized in that: A first through groove (4) is provided inside one of the mortars (38), and a second through groove (5) is provided inside the other of the mortars (38).

8. A sand core forming device for casting production as claimed in claim 7, characterized in that: The outer surface of the first template (31) fits with the inner wall of the first through groove (4), and the outer surface of the second template (33) fits with the inner wall of the second through groove (5).

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