Sectional type combined sand box structure

By setting up a box assembly mechanism and side locking components in the segmented combined sand box, the problem of loosening and separation of the sand box in the automated casting system is solved, achieving higher stability and applicability.

CN224254173UActive Publication Date: 2026-05-19DALIAN JINSHAN COMPRESSOR MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DALIAN JINSHAN COMPRESSOR MFG CO LTD
Filing Date
2025-06-16
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing segmented combination sand boxes are not secure enough when locked, and are prone to loosening and separation in automated casting systems, affecting stability and applicability.

Method used

A box assembly mechanism is set between the right sand box, the left sand box, and the middle sand box. An L-shaped positive hook bar and an L-shaped negative hook bar form a bidirectional interlocking structure. The side locking parts that cooperate with the side base bolts and the middle base bolts, as well as the precise cooperation between the tapered base and the plate hole, enhance the torsional resistance and form a triangular stable structure.

Benefits of technology

The modular sandbox design improves the robustness and stability of its combined use, ensuring stability and adaptability during robotic arm operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sectional type combined sand box structure which comprises a right-section sand box, a left-section sand box, a middle-section sand box and a box assembling mechanism, the middle-section sand box is clamped between the right-section sand box and the left-section sand box, and the sectional type combined sand box structure further comprises the box assembling mechanism which is arranged among the right-section sand box, the left-section sand box and the middle-section sand box. L-shaped normal-position hook strips and L-shaped reverse-position hook strips of box assembling mechanisms on the two sides of the middle-section sand box are matched with L-shaped two-way hook grooves of the left-section sand box and the right-section sand box to form a two-way occlusion structure, so that the sand boxes are prevented from being separated in the vertical direction; the side section base table bolts and the middle section base table bolts are matched to enable side locking pieces formed by welding the hole plates and the T-shaped tongue plates to be matched with the side section base table bolts at the positions of the left section sand box and the right section sand box to be locked at the positions of the middle section base table bolts of the middle section sand box, so that a triangular stable framework is formed, and the bottoms of each set of base table bolts are precisely matched with frustum grooves of plate holes through taper base tables. And the firmness of the sectional type combined sand box in the combined use process is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of combined sand box technology, and in particular to a segmented combined sand box structure. Background Technology

[0002] The segmented modular sand box is a sand box structure used in the foundry industry. Its core feature is that it breaks down the traditional monolithic sand box into multiple combinable segmented modules. This design has significant advantages in improving casting flexibility, reducing mold costs, and increasing production efficiency. The segmented modular sand box consists of multiple independent sand box units (such as left, middle, and right sections). The modules are quickly assembled and disassembled using positioning pins or snap-fit ​​structures, ensuring the overall strength and dimensional accuracy of the assembled sand box.

[0003] Currently, when using segmented combined sand boxes in the foundry industry, the assembled sand box units need to be locked. However, existing combined sand boxes are usually locked quickly using simple positioning pins or buckle structures, which limits the firmness of the assembled sand boxes. When the combined sand boxes are picked up, flipped, and demolded by robotic arms in some automated casting systems, the assembled positions of the sand boxes are prone to loosening and separation, thus affecting their applicability and stability in automated casting. Therefore, we propose a segmented combined sand box structure. Utility Model Content

[0004] The main purpose of this utility model is to provide a segmented combined sand box structure. By setting a box assembly mechanism between the right, left, and middle sand boxes, the middle sand box has L-shaped positive and negative hooks on both sides of the box assembly mechanism, which cooperate with the L-shaped bidirectional hook grooves of the left and right sand boxes to form a bidirectional interlocking structure, preventing the sand boxes from separating in the vertical direction. The side base bolts and the middle base bolts cooperate with the side locking parts composed of the hole plate and T-shaped tongue plate, which can lock the side base bolts at the left and right sand boxes at the middle base bolt of the middle sand box, thus forming a triangular stable structure. The bottom of each set of base bolts has a tapered base that precisely matches the tapered groove of the plate hole, further enhancing the torsional resistance, ensuring the firmness of the segmented combined sand box when used together, and ensuring the stability of the combined sand box when used with a robot arm. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] The segmented combined sandbox structure includes a right sandbox, a left sandbox, and a middle sandbox. The middle sandbox is clamped between the right and left sandboxes. The structure also includes a sandbox assembly mechanism, which comprises L-shaped bidirectional hook grooves, L-shaped positive hook bars, L-shaped negative hook bars, a stop bar, a middle section base bolt, a side section base bolt, a hole plate, and a T-shaped tongue plate. The right and left sandboxes have symmetrically formed L-shaped bidirectional hook grooves on their sides facing the middle sandbox. The middle sandbox has L-shaped positive hook bars and L-shaped negative hook bars symmetrically fixed to both sides of its box plate. The L-shaped positive hook bars and L-shaped negative hook bars are positioned on the right sandbox... The L-shaped bidirectional grooves of the sand box and the left sand box are vertically clamped, and the outer wall of the middle sand box is symmetrically fixed with middle base bolts. The outer surfaces of the right and left sand boxes on both sides of the middle sand box are symmetrically protruding with side base bolts. The side base bolts of the right and left sand boxes and the middle base bolts are symmetrically locked with matching plates by flange nuts. T-shaped tongue plates are welded between the matching plates, and the tongue plates of the T-shaped tongue plates are locked with flange nuts at the middle base bolts on the surface of the middle sand box. The right and left sand boxes on both sides of the middle sand box are symmetrically protruding with baffles to support the middle sand box.

[0007] Furthermore, the inner box plate of the middle sand box, which is away from the middle base bolt, is symmetrically provided with guide bar grooves, and a stop bar is installed in the guide bar groove;

[0008] By adopting the above technical solution, the middle sand box can be fitted into the corresponding stop bars of the right and left sand boxes using the guide bar groove.

[0009] Furthermore, the length of the L-shaped positive hook strip and the L-shaped negative hook strip is the same as the depth of the L-shaped bidirectional hook groove, and the depth of the L-shaped bidirectional hook groove is less than the height of the right sand box and the left sand box.

[0010] By adopting the above technical solution, the L-shaped positive hook strip and the L-shaped negative hook strip can be fitted and installed at the L-shaped bidirectional hook groove of the right sand box and the left sand box, and the L-shaped positive hook strip and the L-shaped negative hook strip can be supported by the bottom wall of the L-shaped bidirectional hook groove.

[0011] Furthermore, a vertical plate body with a T-shaped tongue plate is welded between the two sets of plates of the perforated plate, and a plate hole is opened on the surface of the tongue plate of the T-shaped tongue plate. A middle base bolt is inserted outward at the plate hole of the T-shaped tongue plate and screwed into the flange nut.

[0012] By adopting the above technical solution, after welding T-shaped tongue plates between the orifice plates, the plate holes of the T-shaped tongue plates can be clamped at the middle section base bolt in the middle section of the sand box. After the middle section base bolt passes through the T-shaped tongue plate, it can be locked with the help of flange nuts.

[0013] Furthermore, the two sets of plate bodies of the perforated plate are provided with plate holes, and at each pair of plate holes of the perforated plate, the side base bolts on the surface of the right section sand box and the left section sand box extend outward and are screwed into the flange nut.

[0014] By adopting the above technical solution, a side locking component can be formed by welding T-shaped tongue plates to each pair of orifice plates. This side locking component can be clamped at the side base bolts on the surface of the right and left sand boxes respectively. Then, after the right and left sand boxes pass through the orifice plates outside their respective boxes, flange nuts can be screwed on for locking installation.

[0015] Furthermore, a tapered base is provided at the bottom of the side base bolt and the middle base bolt, and a tapered groove for clamping the tapered base is provided at the plate hole of the orifice plate and the T-shaped tongue plate.

[0016] By adopting the above technical solution, the orifice plate and T-shaped tongue plate can be clamped and positioned using the tapered base of the side section base bolt and the middle section base bolt, which can be adapted to the tapered base of the bolt.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model sets up a box assembly mechanism between the right sand box, left sand box, and middle sand box. The middle sand box has L-shaped positive and negative hooks on both sides of the box assembly mechanism, which cooperate with the L-shaped bidirectional hook grooves of the left and right sand boxes to form a bidirectional interlocking structure, preventing the sand boxes from separating in the vertical direction. The side base bolts and the middle base bolts cooperate with the side locking parts welded to the hole plate and T-shaped tongue plate, which can be locked at the middle base bolt of the middle sand box with the side base bolts at the left and right sand boxes, thus forming a triangular stable structure. The bottom of each set of base bolts has a tapered base that precisely matches the tapered groove of the plate hole, further enhancing the torsional resistance, ensuring the firmness of the segmented combined sand box when used together, and ensuring the stability of the combined sand box when used with a robot.

[0019] Furthermore, the middle sand box uses the guide bar groove to cooperate with the stop bars of the right and left sand boxes for internal contact and positioning, thereby reducing the gap at the combination of the middle, right and left sand boxes and ensuring the stable combination and use of the segmented combined sand boxes. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the segmented combined sand box structure of this utility model.

[0021] Figure 2 This is a schematic diagram showing the disassembly of the right, left, and middle sections of the segmented combined sand box structure of this utility model.

[0022] Figure 3 This is an exploded view of the assembly mechanism of the segmented combined sand box structure of this utility model.

[0023] In the diagram: 1. Right sand box; 2. Left sand box; 3. Middle sand box; 4. Assembly mechanism; 5. L-shaped bidirectional hook groove; 6. L-shaped positive hook bar; 7. L-shaped negative hook bar; 8. Alignment bar; 9. Middle base bolt; 10. Side base bolt; 11. Orifice plate; 12. T-shaped tongue plate; 13. Guide bar groove; 14. Flange nut. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] like Figure 1-3 As shown, the segmented combined sandbox structure includes a right sandbox 1, a left sandbox 2, and a middle sandbox 3. The middle sandbox 3 is clamped between the right sandbox 1 and the left sandbox 2. It also includes a sandbox assembly mechanism 4, which includes an L-shaped bidirectional hook groove 5, an L-shaped positive hook bar 6, an L-shaped negative hook bar 7, a stop bar 8, a middle base bolt 9, a side base bolt 10, a hole plate 11, and a T-shaped tongue plate 12. The right sandbox 1 and the left sandbox 2 have symmetrically opened bidirectional L-shaped hook grooves 5 facing the middle sandbox 3. The middle sandbox 3 has L-shaped positive hook bars 6 and L-shaped negative hook bars 7 symmetrically fixed on both sides of its box plate. The L-shaped positive hook bars 6 and L-shaped negative hook bars 7 are located between the right sandbox 1 and the left sandbox 2. The left sand box 2 is vertically clamped at the L-shaped bidirectional groove 5, and the middle sand box 3 is symmetrically fixed at the outer wall of the middle sand box 3. The right sand box 1 and the left sand box 2 on both sides of the middle sand box 3 are symmetrically protruding with side base bolts 10. The side base bolts 10 of the right sand box 1 and the left sand box 2 are symmetrically locked with the bolt bodies of the middle base bolts 9 by flange nuts 14. T-shaped tongue plates 12 are welded between the hole plates 11, and the tongue plates of the T-shaped tongue plates 12 are locked with the middle base bolts 9 on the surface of the middle sand box 3 by flange nuts 14. The right sand box 1 and the left sand box 2 on both sides of the middle sand box 3 are symmetrically protruding with baffle strips 8 for supporting the middle sand box 3.

[0026] Among them, the inner box plate of the middle sand box 3, which is far from the middle base bolt 9, is symmetrically provided with guide bar grooves 13, and the guide bar grooves 13 are fitted with anti-stop bars 8.

[0027] By adopting the above technical solution, the middle sand box 3 can be fitted into the corresponding stop bar 8 of the right sand box 1 and the left sand box 2 with the guide bar groove 13.

[0028] The length of the L-shaped positive hook 6 and the L-shaped negative hook 7 is the same as the depth of the L-shaped bidirectional hook groove 5, and the depth of the L-shaped bidirectional hook groove 5 is less than the height of the right sand box 1 and the left sand box 2.

[0029] By adopting the above technical solution, the L-shaped positive hook strip 6 and the L-shaped negative hook strip 7 can be fitted and installed at the L-shaped bidirectional hook groove 5 of the right sand box 1 and the left sand box 2, and the L-shaped positive hook strip 6 and the L-shaped negative hook strip 7 can be supported by the bottom wall of the L-shaped bidirectional hook groove 5.

[0030] Among them, the vertical plate of T-shaped tongue plate 12 is welded between the two sets of plate bodies of the perforated plate 11, and the tongue plate surface of T-shaped tongue plate 12 is provided with plate holes, and the middle base bolt 9 of T-shaped tongue plate 12 extends outward from the plate hole and is screwed to the flange nut 14.

[0031] By adopting the above technical solution, after welding the T-shaped tongue plate 12 between the orifice plates 11, the plate hole of the T-shaped tongue plate 12 can be clamped at the middle base bolt 9 in the middle section of the middle sand box 3. After the middle base bolt 9 passes through the T-shaped tongue plate 12, it can be locked with the help of the flange nut 14.

[0032] The perforated plate 11 has perforations on the surface of the two sets of plates, and the side base bolts 10 on the surface of the right sand box 1 and the left sand box 2 of each pair of plates of the perforated plate 11 extend outward and are screwed to the flange nut 14.

[0033] By adopting the above technical solution, after welding T-shaped tongue plates 12 to each two sets of plates of the perforated plate 11, a side locking component can be formed. This side locking component can be clamped at the side base bolts 10 on the surface of the right sand box 1 and the left sand box 2 respectively. Then, after the right sand box 1 and the left sand box 2 pass through the perforated plate 11 outside their respective boxes, the flange nuts 14 can be screwed on for locking installation.

[0034] The side base bolt 10 and the middle base bolt 9 are provided with tapered bases at their bottoms, and the hole holes of the hole plate 11 and the T-shaped tongue plate 12 are provided with tapered grooves for mounting the tapered bases.

[0035] By adopting the above technical solution, the orifice plate 11 and the T-shaped tongue plate 12 can be fitted and positioned with the tapered base of the side base bolt 10 and the middle base bolt 9 using the frustum groove.

[0036] It should be noted that this utility model is a segmented combined sand box structure. An assembly mechanism 4 is set between the right sand box 1, left sand box 2, and middle sand box 3. When the right sand box 1, left sand box 2, and middle sand box 3 need to be assembled, the middle sand box 3 uses L-shaped positive hooks 6 and L-shaped negative hooks 7 to bidirectionally engage with the L-shaped bidirectional hook grooves 5 of the right sand box 1 and left sand box 2, respectively. Simultaneously, the middle sand box 3 uses guide grooves 13 to engage with the opposing baffles 8 of the right sand box 1 and left sand box 2 for support. Then, the side locking components, formed by welding the perforated plate 11 and the T-shaped tongue plate 12, can be held by hand. Finally, the four sets of side locking components' perforated plates 11 are symmetrically engaged with the side base bolts 10 on both sides of the right sand box 1 and left sand box 2, and the flange nuts are tightened. Locking is performed at the side base bolt 10. At this time, the other end of the four sets of side locking parts away from the right sand box 1 and the left sand box 2 can be locked at the middle base bolt 9 on the surface of the middle sand box 3 by screwing on the flange nut 14. Then, the T-shaped tongue plate 12 can also be locked at the middle base bolt 9 in the middle of the middle sand box 3, and then the flange nut 14 is screwed on to lock. At this time, the right sand box 1, the left sand box 2 and the middle sand box 3 can be combined into a complete sand box by the segmented structure. After unscrewing the flange nut 14, the side locking parts can be pulled outward to disassemble. Then, the middle sand box 3 can be lifted up and removed. When the size of the middle sand box 3 needs to be changed and shortened, the middle base bolt 9 can be set at the middle sand box 3 according to the plate hole positions of the orifice plate 11 and the T-shaped tongue plate 12.

[0037] It should be noted that this utility model is a segmented combined sand box structure. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A segmented combined sandbox structure, comprising a right sandbox (1), a left sandbox (2), and a middle sandbox (3), wherein the middle sandbox (3) is clamped between the right sandbox (1) and the left sandbox (2), characterized in that: It also includes a box assembly mechanism (4), which includes an L-shaped bidirectional hook groove (5), an L-shaped positive hook bar (6), an L-shaped negative hook bar (7), a stop bar (8), a middle section base bolt (9), a side section base bolt (10), a hole plate (11), and a T-shaped tongue plate (12). The right section sand box (1) and the left section sand box (2) are symmetrically provided with bidirectional grooves of L-shaped bidirectional hook grooves (5) facing the middle section sand box (3). The middle section sand box (3) is symmetrically fixed with L-shaped positive hook bars (6) and L-shaped negative hook bars (7) on both sides of the box plate. The L-shaped positive hook bars (6) and L-shaped negative hook bars (7) are vertically clamped at the L-shaped bidirectional hook grooves (5) of the right section sand box (1) and the left section sand box (2). A central base bolt (9) is symmetrically fixed to the outer wall of the sand box. A side base bolt (10) is symmetrically protruding on the outer surface of the right sand box (1) and the left sand box (2) on both sides of the central sand box (3). A matching plate (11) is symmetrically locked to the bolt body of the side base bolt (10) of the right sand box (1) and the left sand box (2) and the central base bolt (9) by a flange nut (14). A T-shaped tongue plate (12) is welded between the matching plates (11). The tongue plate of the T-shaped tongue plate (12) is locked to the central base bolt (9) on the surface of the central sand box (3) by a flange nut (14). A matching strip (8) for supporting the central sand box (3) is symmetrically protruding on the right sand box (1) and the left sand box (2) on both sides of the central sand box (3).

2. The segmented combined sand box structure according to claim 1, characterized in that: The inner box plate of the middle sand box (3) away from the middle base bolt (9) is symmetrically provided with guide bar grooves (13), and the guide bar grooves (13) are fitted with anti-stop bars (8).

3. The segmented combined sand box structure according to claim 1, characterized in that: The length of the L-shaped positive hook strip (6) and the L-shaped negative hook strip (7) is the same as the depth of the L-shaped bidirectional hook groove (5), and the depth of the L-shaped bidirectional hook groove (5) is less than the height of the right sand box (1) and the left sand box (2).

4. The segmented combined sand box structure according to claim 1, characterized in that: The vertical plate of the T-shaped tongue plate (12) is welded between the two sets of plates of the perforated plate (11), and the tongue plate surface of the T-shaped tongue plate (12) is provided with a plate hole. A middle base bolt (9) is provided at the plate hole of the T-shaped tongue plate (12) and is screwed out to the flange nut (14).

5. The segmented combined sand box structure according to claim 4, characterized in that: The two sets of plate bodies of the perforated plate (11) are provided with plate holes, and at each of the two sets of plate holes of the perforated plate (11), the side base bolts (10) on the surface of the right section sand box (1) and the left section sand box (2) extend outward and are screwed to the flange nut (14).

6. The segmented combined sand box structure according to claim 5, characterized in that: The side base bolt (10) and the middle base bolt (9) are provided with tapered bases at their bottoms, and the holes of the hole plate (11) and the T-shaped tongue plate (12) are provided with tapered grooves for mounting the tapered bases.