Sand box for casting

Abstract

The utility model discloses a sand box for casting, which relates to the related technical field of mechanical engineering and comprises a base, expansion boxes are fixed with the base through positioning rods and positioning holes, a plurality of groups of expansion boxes are spliced, tension springs generate tension on upper claws and lower claws, and a clamping frame A, a clamping frame B and a clamping frame C are pulled and fixed. Connection between the base and the expansion boxes is stabilized, after casting is completed, the multiple sets of expansion boxes and the base are separated and detached, and residual molding sand on the inner wall is convenient to clean; when multiple sets of casting objects need to be produced, the first partition plate and the second partition plate are connected, the clamping piece is used for reinforcing fixation and improving stability, when only a single set of casting objects are produced, the lower portion of the supplementary plate and the fixing plate are inserted into the fixing groove, the supplementary plate is overlapped above the base, molding sand is prevented from falling into the fixing groove, and the requirement for different casting amounts can be flexibly met; and repeated machining and casting are not needed, so that the casting efficiency is improved, and the time cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical engineering related technical field, concretely is a sand box for casting. BACKGROUND

[0002] The earliest casting method of traditional casting technology of molding sand is mainly manual operation, and a simple sand box is used to form the shape of the casting. With the development of industrialization, the traditional sand casting process gradually evolves, and more complex sand boxes are used to improve the quality and production efficiency of castings. With the increasing demand for high-quality, low-cost castings in the market, sand box technology is constantly improving to adapt to the production of different types of castings. More and more enterprises need small batch, diversified castings, which promotes the design of sand boxes to be more flexible and multifunctional. These background technologies have made continuous innovation and improvement in design, materials and manufacturing processes, and have improved the overall technical level of the casting industry.

[0003] According to the search of China utility model publication number: CN221773462U discloses a kind of sand box for casting, the utility model discloses a kind of sand box for casting, by setting bottom plate and the vertical plate of fixed connection in the one side of bottom plate, interval constitutes an L shape plate slidingly connected in base, to be carried out to molding sand to casting, when completing casting, by power piece drives and moves bottom plate and vertical plate together to rear, the molding sand of casting is taken out from sand box, to complete the molding sand of casting to take out sand box, the utility model discloses a kind of sand box for casting, by the inclined chute of baffle outside, by transmission member drive to U-shaped connecting rod, U-shaped connecting rod can drive triangular block to slide in baffle outside, when triangular block slides in baffle and not in inclined chute, triangular block will extrude baffle, make baffle extrude elastic plate to move to interior, make baffle return to original position, when casting, when transmission member drives triangular block to move forward, when moving to inclined chute, triangular block cannot extrude baffle, will because elastic plate expands outward, expand the space in sand box, make power piece take out casting to casting object more conveniently.

[0004] However, when implementing the above technical solutions, the following problems exist: the device cannot be disassembled and separated when in use, and the residual molding sand on the inner wall of the device cannot be conveniently cleaned after completing casting processing. At the same time, the sand box can only produce single set of castings, and when a large number of castings need to be manufactured, multiple processing and casting need to be performed, which cannot flexibly adapt to the demand of different casting quantities and has low casting efficiency, increasing time cost. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a sand box for casting to solve the problems raised in the above background technologies.

[0006] To achieve the above object the utility model adopts the following technical scheme:

[0007] To achieve the above object, the utility model provides the following technical scheme: A sand box for casting, including base, the inside top of base device is equipped with the supplemental board device, the top of base device is equipped with sand box multistage expansion device.

[0008] Preferably, the base device includes a base, a back-shaped plate, a fixed groove, a positioning hole, and an A-clamp frame, the top outer side of the base is fixedly connected with the back-shaped plate, the top surface of the base is provided with the fixed groove, the top four corners of the back-shaped plate are provided with the positioning hole, the outer side of the back-shaped plate is fixedly connected with the A-clamp frame, and the A-clamp frame is provided with four groups.

[0009] Preferably, the supplemental board device includes a fixed plate and a supplemental board, the fixed plate is installed above the fixed groove, the size of the bottom end of the fixed plate matches the internal size of the fixed groove, the top end of the fixed plate is welded with the supplemental board, and the size of the supplemental board matches the internal size of the back-shaped plate.

[0010] Preferably, the sand box multistage expansion device includes an expansion box, a connecting frame, a positioning rod, a B-clamp frame, a C-clamp frame, an upper hook claw, a contraction block, a lower hook claw, a tension spring, a first partition plate, a second partition plate, a socket, and a clamping piece, the top end of the back-shaped plate is movably connected with the expansion box, the outer side of the expansion box is fixedly connected with the connecting frame, the bottom end of the expansion box is fixedly connected with the positioning rod, the outer side of the connecting frame is welded with the B-clamp frame, one side of the B-clamp frame is provided with the C-clamp frame, the C-clamp frame is welded with the connecting frame, the inner side of the C-clamp frame is movably connected with the upper hook claw, the bottom end of the upper hook claw is clamped with the contraction block, the bottom end of the contraction block is clamped with the lower hook claw, the inside of the contraction block is provided with the tension spring, the expansion box is inserted between the back-shaped plate through the positioning rod and the positioning hole, the size of the expansion box matches the size of the back-shaped plate, and the expansion box can be spliced in multiple groups.

[0011] Preferably, the inner side of the A-clamp frame, the B-clamp frame, and the C-clamp frame is provided with a notch, the notches of the A-clamp frame and the B-clamp frame are downward, the notch of the C-clamp frame is upward, the A-clamp frame is clamped and fixed between the upper hook claw and the lower hook claw and the C-clamp frame, and the B-clamp frame is clamped and fixed between the upper hook claw and the lower hook claw and the C-clamp frame.

[0012] Preferably, the tension spring is fixedly connected between the upper hook claw and the lower hook claw, the tension spring is fixedly connected between the upper hook claw and the lower hook claw, and the upper hook claw and the lower hook claw constitute a telescopic structure through the tension spring and the contraction block.

[0013] Preferably, the top end of the fixed groove is inserted with a first partition plate, the outer side of the first partition plate is inserted with a second partition plate, the surface of the second partition plate is provided with an insertion port, the insertion port is tightly combined with the first partition plate, and the number of insertion ports on the surface of the second partition plate matches the number of the first partition plate.

[0014] Preferably, the top end of the intersection of the first partition plate and the second partition plate is inserted with a clamping piece, the bottom of the clamping piece is provided with a cross-shaped opening, and the spacing of the cross-shaped opening matches the thickness of the first partition plate and the second partition plate.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The product fixes and connects the expansion box and the base through the positioning rod and the positioning hole, a plurality of expansion boxes are spliced, the four upper hook claws and the lower hook claws are pulled out from the upper and lower ends of the contraction block, the tension spring generates tension on the upper hook claws and the lower hook claws, the A card frame, the B card frame and the C card frame are pulled and fixed, and the position connection structure between the stable base and the expansion box is fixed.

[0017] When a plurality of castings need to be produced, the first partition plate is inserted in the fixed groove, the second partition plate is cross-connected with the first partition plate through the insertion port on the surface of the second partition plate, the clamping piece is inserted at the top end of the connection between the first partition plate and the second partition plate to strengthen the fixation and increase the stability, and a plurality of castings are produced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is an overall front structure schematic view of the utility model.

[0019] Figure 2 It is a base and expansion box mutual cooperation structure schematic view of the utility model.

[0020] Figure 3 It is an expansion box mutual cooperation structure schematic view of the utility model.

[0021] Figure 4 It is a contraction block internal structure schematic view of the utility model.

[0022] Figure 5 It is a first partition plate and second partition plate mutual cooperation structure schematic view of the utility model.

[0023] Figure 6 The base and the supplementary plate are matched with each other.

[0024] In the figure: 1, base device; 101, base; 102, back-shaped plate; 103, fixed groove; 104, positioning hole; 105, A clamping frame; 2, supplementary plate device; 201, fixed plate; 202, supplementary plate; 3, sand box multi-stage expansion device; 301, expansion box; 302, connecting frame; 303, positioning rod; 304, B clamping frame; 305, C clamping frame; 306, upper hook claw; 307, contraction block; 308, lower hook claw; 309, tension spring; 310, first partition plate; 311, second partition plate; 312, socket; 313, clamping piece. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purposes and effects achieved by the utility model easy to understand, the utility model will be further described below in combination with specific embodiments.

[0026] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "another end" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication inside two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary skilled persons in the art without making creative efforts belong to the scope of protection of the utility model.

[0029] Please refer to Figures 1-6The utility model provides a kind of sand box for casting, including base 101, the inside top of base device 1 is equipped with patching device 2, the top of base device 1 is equipped with sand box multistage expansion device 3.

[0030] Specifically, base device 1 includes base 101, back type plate 102, fixed groove 103, positioning hole 104 and A card frame 105, the top outer side of base 101 is fixedly connected with back type plate 102, the top surface of base 101 is provided with fixed groove 103, the top four corners of back type plate 102 are provided with positioning hole 104, the outer side of back type plate 102 is fixedly connected with A card frame 105, A card frame 105 is provided with four groups, the positional relationship of positioning hole 104 and positioning rod 303 is inserted and fixed base 101 and expansion box 301, and the positional relationship of positioning hole 104 and positioning rod 303 is inserted and fixed base 101 and expansion box 301, the position of fixed groove 103 in base 101 is used to fix first partition plate 310 or fixed plate 201, to facilitate increasing its stability.

[0031] Specifically, patching device 2 includes fixed plate 201 and patching plate 202, fixed groove 103 is installed above fixed plate 201, the size of the bottom of fixed plate 201 is matched with the inside size of fixed groove 103, fixed plate 201 is welded with patching plate 202 on the top, the size of patching plate 202 is matched with the inside size of back type plate 102, when only single group of casting is needed to be produced, patching plate 202 below is inserted into fixed groove 103 with fixed plate 201, patching plate 202 is attached to base 101, to prevent that sand falls into fixed groove 103 when casting is produced and is difficult to clean.

[0032] Specifically, the sand box multi-stage expansion device 3 comprises an expansion box 301, a connecting frame 302, a positioning rod 303, a B card frame 304, a C card frame 305, an upper hook claw 306, a contraction block 307, a lower hook claw 308, a tension spring 309, a first partition plate 310, a second partition plate 311, a socket 312 and a clamping piece 313, the top end of the back-shaped plate 102 is movably connected with the expansion box 301, the outer side of the expansion box 301 is fixedly connected with the connecting frame 302, the bottom end of the expansion box 301 is fixedly connected with the positioning rod 303, the outer side of the connecting frame 302 is welded with the B card frame 304, one side of the B card frame 304 is provided with the C card frame 305, the C card frame 305 is welded with the connecting frame 302, the inner side of the C card frame 305 is movably connected with the upper hook claw 306, the bottom end of the upper hook claw 306 is clamped with the contraction block 307, the bottom end of the contraction block 307 is clamped with the lower hook claw 308, the inside of the contraction block 307 is mounted with the tension spring 309, the expansion box 301 is inserted between the positioning rod 303 and the positioning hole 104 and the back-shaped plate 102, the size of the expansion box 301 matches the size of the back-shaped plate 102, the expansion box 301 can be spliced in multiple groups, the positioning rod 303 at the bottom of the expansion box 301 is inserted into the positioning hole 104 at the top of the back-shaped plate 102, for fixing the positional relationship between the expansion box 301 and the base 101, then multiple expansion boxes 301 are overlapped and spliced, after casting, the multiple expansion boxes 301 are separated from the base 101, so as to facilitate cleaning the sand in the mold.

[0033] Specifically, the inner side of the A card frame 105, the B card frame 304 and the C card frame 305 is provided with a notch, the notches of the A card frame 105 and the B card frame 304 are downward, the notch of the C card frame 305 is upward, the A card frame 105 is clamped and fixed between the upper hook claw 306 and the lower hook claw 308 and the C card frame 305, the B card frame 304 is clamped and fixed between the upper hook claw 306 and the lower hook claw 308 and the C card frame 305, four groups of upper hook claws 306 and lower hook claws 308 fix the A card frame 105 and the C card frame 305, stabilize the positional relationship between the base 101 and the expansion box 301, four groups of upper hook claws 306 and lower hook claws 308 fix the B card frame 304 and the C card frame 305, stabilize the positional relationship between the expansion boxes 301.

[0034] Specifically, the tension spring 309 is fixedly connected between the upper hook claw 306 and the lower hook claw 308, the upper hook claw 306 and the lower hook claw 308 constitute a telescopic structure through the tension spring 309 between the contraction block 307, the tension spring 309 generates an inward force on the upper hook claw 306 and the lower hook claw 308, the upper hook claw 306 and the lower hook claw 308 shrink into the inside of the contraction block 307, while firmly fixing the positional relationship of the A card frame 105, the B card frame 304 and the C card frame 305.

[0035] Specifically, the top end of the fixed groove 103 is inserted with the first partition plate 310, the outer side of the first partition plate 310 is inserted with the second partition plate 311, the surface of the second partition plate 311 is provided with the socket 312, the socket 312 is tightly fitted between the first partition plate 310, the number of the sockets 312 on the surface of the second partition plate 311 matches the number of the first partition plate 310, the first partition plate 310 is inserted into the fixed groove 103, the first partition plate 310 is cross-connected with the socket 312 on the surface of the second partition plate 311, and the assembly number of the first partition plate 310 and the second partition plate 311 is determined according to the number of the castings to be produced.

[0036] Specifically, the top end of the intersection of the first partition plate 310 and the second partition plate 311 is inserted with the clamping piece 313, the bottom of the clamping piece 313 is provided with a cross opening, the distance of the cross opening matches the thickness of the first partition plate 310 and the second partition plate 311, and the clamping piece 313 is inserted into the top end of the first partition plate 310 and the second partition plate 311 after the connection of multiple groups of the first partition plate 310 and the second partition plate 311, so as to enhance the connection relationship.

[0037] Working principle: first, the whole device is moved to the use place, the positioning rod 303 at the bottom of the expansion box 301 is inserted into the positioning hole 104 at the top end of the back-shaped plate 102, the expansion box 301 and the base 101 are fixed, multiple expansion boxes 301 are spliced, four groups of upper hook claws 306 and lower hook claws 308 are pulled out from the inside of the contraction block 307, the upper hook claws 306 and the lower hook claws 308 generate a pulling force on the tension spring 309, the upper hook claws 306 are fixed on the C card frame 305, the lower hook claws 308 are fixed on the A card frame 105, the tension spring 309 generates a pulling force on the upper hook claws 306 and the lower hook claws 308 to firmly clamp, the position relationship between the base 101 and the expansion box 301 is stable, in addition, four groups of upper hook claws 306 and lower hook claws 308 fix the B card frame 304 and the C card frame 305, and the position relationship between the expansion boxes 301 is stable, when only a single group of castings is produced, the fixed plate 201 below the supplementary plate 202 is inserted into the fixed groove 103, the supplementary plate 202 coincides with the base 101, and the sand is prevented from falling into the fixed groove 103, when multiple groups of castings are needed to be produced, the first partition plate 310 is inserted into the fixed groove 103, the first partition plate 310 is cross-connected with the socket 312 on the surface of the second partition plate 311, the clamping piece 313 is inserted into the top end of the intersection of the first partition plate 310 and the second partition plate 311, and the fixing is strengthened, and multiple groups of castings are produced, after the casting is completed, the first partition plate 310 and the second partition plate 311 are separated and taken out, and multiple expansion boxes 301 are separated from the base 101, so as to facilitate the cleaning of the sand on the inside of the expansion box 301 and the base 101.

[0038] The above only is the embodiment of the present application, and the well-known specific structure and characteristics and other common knowledge are not described in detail herein. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A sand mold for casting, characterized by: Including base device (1), the inside top of base device (1) is installed with patch device (2), the top of base device (1) is installed with sand box multistage expansion device (3); The base device (1) includes a base (101), a back-shaped plate (102), a fixed groove (103), a positioning hole (104), and an A card frame (105), the top outer side of the base (101) is fixedly connected with the back-shaped plate (102), the top surface of the base (101) is provided with the fixed groove (103), the top four corners of the back-shaped plate (102) are provided with the positioning hole (104), and the outer side of the back-shaped plate (102) is fixedly connected with the A card frame (105), and the A card frame (105) is provided with four groups. The sand box multistage expansion device (3) includes an expansion box (301), a connecting frame (302), a positioning rod (303), a B card frame (304), a C card frame (305), an upper hook claw (306), a contraction block (307), a lower hook claw (308), a tension spring (309), a first partition plate (310), a second partition plate (311), a socket (312), and a clamping piece (313), the top of the back-shaped plate (102) is movably connected with the expansion box (301), the outer side of the expansion box (301) is fixedly connected with the connecting frame (302), the bottom of the expansion box (301) is fixedly connected with the positioning rod (303), the outer side of the connecting frame (302) is welded with the B card frame (304), one side of the B card frame (304) is provided with the C card frame (305), the C card frame (305) and the connecting frame (302) are welded, the inner side of the C card frame (305) is movably connected with the upper hook claw (306), the bottom of the upper hook claw (306) is clamped with the contraction block (307), the bottom of the contraction block (307) is clamped with the lower hook claw (308), and the inside of the contraction block (307) is provided with the tension spring (309), the expansion box (301) is inserted between the back-shaped plate (102) through the positioning rod (303) and the positioning hole (104), the size of the expansion box (301) matches the size of the back-shaped plate (102), and the expansion box (301) can be spliced in multiple groups.

2. A sand mold according to claim 1, wherein: The patch device (2) includes a fixed plate (201) and a patch (202), the fixed groove (103) is provided above the fixed plate (201), the size of the bottom of the fixed plate (201) matches the inside size of the fixed groove (103), the top of the fixed plate (201) is welded with the patch (202), and the size of the patch (202) matches the inside size of the back-shaped plate (102).

3. A sand moulding flask according to claim 2, characterised in that: The inner side of the A card frame (105), B card frame (304) and C card frame (305) is provided with notches, the notches of the A card frame (105) and B card frame (304) are downward, the notch of the C card frame (305) is upward, the A card frame (105) is fixedly connected between the upper hook claw (306) and the lower hook claw (308) and the C card frame (305), and the B card frame (304) is fixedly connected between the upper hook claw (306) and the lower hook claw (308) and the C card frame (305).

4. A sand moulding flask according to claim 3, characterised in that: The upper hook claw (306) and the lower hook claw (308) constitute a telescopic structure through the fixed connection between the tensile spring (309) and the upper hook claw (306) and the fixed connection between the tensile spring (309) and the lower hook claw (308).

5. A sand moulding flask according to claim 4, characterised in that: The top end of the fixed groove (103) is provided with a first partition plate (310), the outer side of the first partition plate (310) is provided with a second partition plate (311), the surface of the second partition plate (311) is provided with a socket (312), the socket (312) is tightly combined with the first partition plate (310), and the number of sockets (312) on the surface of the second partition plate (311) matches the number of the first partition plate (310).

6. A sand moulding flask according to claim 5, characterised in that: The top end of the intersection of the first partition plate (310) and the second partition plate (311) is provided with a clamping piece (313), the bottom of the clamping piece (313) is provided with a cross opening, and the distance of the cross opening matches the thickness of the first partition plate (310) and the second partition plate (311).

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