A demolding device for a mold casting sand box

By designing a demolding device for mold casting sand boxes, automated demolding of mold casting sand boxes is achieved by utilizing a demolding table, demolding structure, auxiliary mechanism, and collection mechanism. This solves the problem of high labor intensity in existing technologies and improves demolding efficiency and adaptability.

CN224406425UActive Publication Date: 2026-06-26JILIN WEICHUANG ELECTROMECHANICAL ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN WEICHUANG ELECTROMECHANICAL ENG CO LTD
Filing Date
2026-05-12
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing molding process for removing sand from casting molds increases the labor intensity of workers, necessitating an automated demolding device.

Method used

A demolding device for casting sand boxes is designed, including a demolding platform, a demolding structure, an auxiliary mechanism, an adjustment mechanism, and a collection mechanism. The demolding platform is driven by a hydraulic cylinder for automatic demolding, and the adjustment mechanism adapts to casting sand boxes of different sizes. The collection mechanism collects the demolded products.

Benefits of technology

It has enabled automated demolding of the casting sand box, reducing the labor intensity of workers and improving the adaptability and efficiency of demolding.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a demolding device for a casting sand box, relating to the field of casting sand boxes. It includes a demolding table, a casting sand box, a demolding structure, an auxiliary mechanism, an adjustment mechanism, and a collection mechanism. The demolding table has a discharge chamber inside. The casting sand box is located on top of the demolding table, and the demolding structure is located on the demolding table. The demolding structure is used for automatic demolding of the casting sand box. The auxiliary mechanism is located on the demolding table and is used for supporting and adjusting the position of the demolding structure. This utility model utilizes the cooperation of the demolding structure, demolding table, discharge chamber, and collection mechanism. The adjustment mechanism supports the casting sand box and adapts to its size, facilitating the hoisting and placement of the casting sand box on top of the demolding table. The demolding structure presses down on the interior of the casting sand box for demolding, thus facilitating automatic demolding and reducing the labor intensity of workers.
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Description

Technical Field

[0001] This utility model relates to the field of mold casting sand boxes, and in particular to a demolding device for mold casting sand boxes. Background Technology

[0002] A sand mold casting box, also known as a sand casting box, is an industrial device used to hold molding sand and support a model to form a casting mold. After casting is completed, the sand mold casting box is usually used for demolding.

[0003] In existing technology, when demolding a casting sand box, the sand box is usually placed in the demolding position with a material frame underneath. Then, workers use demolding tools to demold the inside of the sand box, and the product demolded from the sand box falls into the material frame, thus completing the demolding operation. However, this method usually increases the labor intensity of workers. Therefore, it is necessary to use a demolding device that can automatically demold the casting sand box. Utility Model Content

[0004] The purpose of this invention is to provide a demolding device for a casting sand box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a demolding device for a casting sand box, comprising:

[0006] Demolding table, wherein the demolding table is provided with a material discharge cavity inside;

[0007] A casting sand box, which is located on top of the demolding table;

[0008] A demolding structure, located on a demolding table, is used for automatic demolding of the casting sand box;

[0009] An auxiliary mechanism is located on the demolding table and is used to support and adjust the position of the demolding structure.

[0010] An adjustment mechanism is located on top of the demolding table and is used to support the casting sand box.

[0011] A collection mechanism, located at the bottom of the demolding table, is used to collect the demolded products from the casting sand box.

[0012] Preferably, the demolding structure includes:

[0013] An assembly rack, which is located on a demolding table;

[0014] The template is removed from the assembly frame;

[0015] A hydraulic cylinder is mounted on the top of the assembly frame, and the output end of the hydraulic cylinder is connected to the template release drive.

[0016] Preferably, the auxiliary mechanism includes:

[0017] The first guide plate is fixedly connected to the side of the demolding table;

[0018] The first slide plate is fixedly connected to the side of the first guide plate. The side of the inner wall of the assembly frame is provided with a first slide groove that cooperates with the first guide plate. The side of the inner wall of the first slide groove is provided with a second slide groove that cooperates with the first slide plate.

[0019] The mounting bracket has a T-slot on its side, and the snap-fit ​​plate is slidably inserted into the inner cavity of the T-slot. The first guide plate has a slot on its side that mates with the snap-fit ​​plate.

[0020] Preferably, the auxiliary mechanism further includes:

[0021] A fixing frame is fixedly connected to the side of the assembly frame;

[0022] A movable frame is fixedly connected to the side of the snap-fit ​​plate, and the movable frame is slidably inserted into the inner cavity of the T-slot;

[0023] A square plate, which is fixedly connected to the side of the fixed frame;

[0024] An operating component is located on a fixed frame and is used to support and traction the mobile frame.

[0025] Preferably, the operating element includes:

[0026] A connecting rod, one end of which is fixedly connected to the movable frame, and the outer wall of the connecting rod is slidably inserted into the square plate;

[0027] A spring is sleeved on the outside of the connecting rod, one end of the spring is fixedly connected to the movable frame, and the other end of the spring is fixedly connected to the square plate;

[0028] An operating panel is fixedly connected to the other end of a connecting rod.

[0029] Preferably, the adjustment mechanism includes:

[0030] The second guide plate is fixedly connected to the top of the demolding table;

[0031] The second slide plate is fixedly connected to the side of the second guide plate;

[0032] An adjusting seat is slidably sleeved on the outside of the second guide plate, and a third sliding groove is provided on the side of the inner wall of the adjusting seat to cooperate with the second sliding plate.

[0033] The first bolt is threadedly inserted into the top of the adjusting seat, and one end of the first bolt is in contact with the top of the second guide plate.

[0034] Preferably, the adjustment mechanism further includes:

[0035] A positioning frame, the positioning frame being located on top of the adjusting seat, the positioning frame being located at the corner of the casting sand box;

[0036] A sliding seat, which is fixedly connected to the side of the positioning frame;

[0037] The third guide plate is fixedly connected to the top of the adjusting seat, and the third guide plate is slidably inserted into the inner cavity of the sliding seat;

[0038] The third sliding plate is fixedly connected to the side of the third guide plate, and the side of the inner wall of the sliding seat is provided with a fourth sliding groove that cooperates with the third sliding plate.

[0039] The second bolt is threadedly inserted into the top of the sliding seat, and one end of the second bolt is in contact with the third guide plate.

[0040] Preferably, the collection mechanism includes:

[0041] A collection frame is slidably disposed at the bottom of the demolding table, and the inner cavity of the collection frame is connected to the inner cavity of the discharge chamber;

[0042] A connecting seat, which is fixedly connected to the side of the collection frame;

[0043] A support base, which is fixedly connected to the side of the demolding table;

[0044] The plug-in post is slidably inserted into the interior of the connector and the support.

[0045] The technical effects and advantages of this utility model are as follows:

[0046] This invention utilizes the coordinated operation of a demolding structure, a demolding platform, a material discharge chamber, an auxiliary mechanism, an adjustment mechanism, and a collection mechanism. The demolding platform supports the adjustment mechanism and the demolding structure. The adjustment mechanism supports the casting sand box and adapts to its size, facilitating demolding of casting sand boxes of different sizes and improving adaptability. The auxiliary mechanism allows the demolding structure to slide away from the top of the demolding platform, making it easier to hoist the casting sand box to the top of the platform. It also ensures unobstructed operation during maintenance of the demolding platform. The demolding structure presses down on the inside of the casting sand box for demolding. The collection mechanism collects the demolded product from inside the casting sand box for easy removal, thus facilitating automatic demolding of the casting sand box and reducing the labor intensity of workers. Attached Figure Description

[0047] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0048] Figure 2 This is a schematic diagram of the structure of the second guide plate of this utility model;

[0049] Figure 3 This is a schematic diagram of the structure of the connector of this utility model;

[0050] Figure 4 This is a top sectional view of the fixed frame of this utility model.

[0051] In the diagram: 1. Demolding table; 11. Discharge chamber; 2. Casting sand box; 3. Demolding structure; 31. Assembly frame; 32. Demolding template; 33. Hydraulic cylinder; 4. Auxiliary mechanism; 41. First guide plate; 42. First sliding plate; 43. Snap-fit ​​plate; 44. Fixed frame; 45. Moving frame; 46. Square plate; 47. Connecting rod; 48. Spring; 49. Operating panel; 5. Adjustment mechanism; 51. Second guide plate; 52. Second sliding plate; 53. Adjustment seat; 54. First bolt; 55. Positioning frame; 56. Sliding seat; 57. Third guide plate; 58. Third sliding plate; 59. Second bolt; 6. Collection mechanism; 61. Collection frame; 62. Connecting seat; 63. Support seat; 64. Insertion column. Detailed Implementation

[0052] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0053] This utility model provides, for example Figures 1-4 The image shows a demolding device for a sand box used in die casting.

[0054] Example 1: Includes a demolding table 1, a casting sand box 2, a demolding structure 3, an auxiliary mechanism 4, an adjustment mechanism 5, and a collection mechanism 6. The demolding table 1 can be fixed to the ground or a designated location by bolts. The demolding table 1 is U-shaped. Figure 1 As shown, the height of the demolding table 1 can be set according to actual needs. The casting sand box 2 can be hoisted to the top of the demolding table 1 by external hoisting equipment for demolding operation. It should be noted that the specific casting method and structural composition of the casting sand box 2 are conventional settings of existing technology, so they will not be described in detail here. The demolding table 1 is provided with a material discharge chamber 11. The casting sand box 2 is located at the top of the demolding table 1. The demolding structure 3 is located on the demolding table 1. The demolding structure 3 is used to perform automatic demolding operation on the casting sand box 2. The auxiliary mechanism 4 is located on the demolding table 1. The auxiliary mechanism 4 is used to support and adjust the position of the demolding structure 3. The adjusting mechanism 5 is located at the top of the demolding table 1. The adjusting mechanism 5 is used to support the casting sand box 2. The collecting mechanism 6 is located at the bottom of the demolding table 1. The collecting mechanism 6 is used to collect the demolded products of the casting sand box 2.

[0055] Furthermore, the demolding structure 3 includes an assembly frame 31, a demolding template 32, and a hydraulic cylinder 33. The assembly frame 31 is U-shaped, which facilitates the support of the hydraulic cylinder 33 and allows it to slide horizontally, keeping the demolding template 32 and the assembly frame 31 away from the top of the demolding table 1. This makes it easier to hoist the casting sand box 2 to the top of the demolding table 1 or to maintain the demolding table 1 without being limited by operating space. The shape and size of the demolding template 32 can be set according to requirements. The demolding template 32 and the output end of the hydraulic cylinder 33 can be connected by bolts, making it easy to replace the demolding template 32. The hydraulic cylinder 33 can be electrically connected to an external power supply via an external switch. The hydraulic cylinder 33 helps to push the demolding template 32 to move, thereby pressing down the sand and product inside the casting sand box 2 for demolding. The assembly frame 31 is located on the demolding table 1, the demolding template 32 is located inside the assembly frame 31, and the hydraulic cylinder 33 is installed on the top of the assembly frame 31. The output end of the hydraulic cylinder 33 is connected to the demolding template 32 for transmission.

[0056] Furthermore, the auxiliary mechanism 4 includes a first guide plate 41, a first sliding plate 42, and a locking plate 43. The first guide plate 41 facilitates the sliding of the assembly frame 31 and provides support for it. The first sliding plate 42 provides horizontal guidance for the sliding of the assembly frame 31, thereby improving the stability of the assembly frame 31. The locking plate 43 limits the relative position of the assembly frame 31 and the first guide plate 41, fixing the assembly frame 31 in the demolding position. When the position limitation is released, the assembly frame can be... 31 slides backward, away from the top of the demolding table 1. The first guide plate 41 is fixedly connected to the side of the demolding table 1. The first slide plate 42 is fixedly connected to the side of the first guide plate 41. The side of the inner wall of the assembly frame 31 is provided with a first slide groove that cooperates with the first guide plate 41. The side of the inner wall of the first slide groove is provided with a second slide groove that cooperates with the first slide plate 42. The side of the assembly frame 31 is provided with a T-shaped groove. The snap-fit ​​plate 43 is slidably inserted into the inner cavity of the T-shaped groove. The side of the first guide plate 41 is provided with a snap-fit ​​groove that cooperates with the snap-fit ​​plate 43.

[0057] Furthermore, the auxiliary mechanism 4 also includes a fixed frame 44, a movable frame 45, a square plate 46, and an operating component. The fixed frame 44 provides support for the square plate 46. The movable frame 45 is T-shaped and facilitates the movement of the snap-fit ​​plate 43, enabling traction operations on the snap-fit ​​plate 43. The square plate 46 allows the connecting rod 47 to slide on it, guiding the sliding of the connecting rod 47 and compressing the deformation of the spring 48. The fixed frame 44 is fixedly connected to the side of the assembly frame 31, and the movable frame 45 is fixedly connected to the side of the snap-fit ​​plate 43. The movable frame 45 is slidably inserted into the inner cavity of the T-slot. The square plate 46 is fixedly connected to the side of the fixed frame 44. The operating component is located on the fixed frame 44 and is used to support and traction the movable frame 45.

[0058] Specifically, the operating components include a connecting rod 47, a spring 48, and an operating plate 49. The connecting rod 47 facilitates the support of the movable frame 45, enabling traction operations to disengage the locking plate 43 from the slot. It also guides the deformation of the spring 48, which can be used in conjunction with a damper (not shown in the figure) to improve its stability. The spring force of the spring 48 helps to propel the movable frame 45, facilitating its movement and subsequent return to its original position after the movable frame 45 has moved the locking plate 43. Returning to its original position facilitates repeated operation of the snap-fit ​​plate 43. The operating plate 49 facilitates pulling the connecting rod 47 to move the movable frame 45 and the snap-fit ​​plate 43. One end of the connecting rod 47 is fixedly connected to the movable frame 45, and the outer wall of the connecting rod 47 is slidably inserted into the square plate 46. The spring 48 is sleeved on the outside of the connecting rod 47, one end of the spring 48 is fixedly connected to the movable frame 45, and the other end of the spring 48 is fixedly connected to the square plate 46. The operating plate 49 is fixedly connected to the other end of the connecting rod 47.

[0059] Specifically, the adjusting mechanism 5 includes a second guide plate 51, a second sliding plate 52, an adjusting seat 53, and a first bolt 54. The second guide plate 51 facilitates the horizontal guidance of the sliding of the adjusting seat 53. The second sliding plate 52 facilitates the horizontal guidance of the sliding of the adjusting seat 53 and limits the vertical position of the adjusting seat 53. The adjusting seat 53 facilitates the placement of the edge of the casting sand box 2 to the top of the adjusting seat 53, thereby facilitating the demolding support of the casting sand box 2. The first bolt 54 can be used with washers or rubber pads to improve the anti-loosening ability of the first bolt 54. Bolt 54 facilitates the fastening of adjusting seat 53, so that the position of adjusting seat 53 can be adjusted and fixed, which is convenient for demolding of casting sand box 2 of different sizes and has wide adaptability. The second guide plate 51 is fixedly connected to the top of demolding table 1, the second slide plate 52 is fixedly connected to the side of the second guide plate 51, the adjusting seat 53 is slidably sleeved on the outside of the second guide plate 51, and the side of the inner wall of adjusting seat 53 is provided with a third slide groove that cooperates with the second slide plate 52. The first bolt 54 is threadedly inserted into the top of adjusting seat 53, and one end of the first bolt 54 is in contact with the top of the second guide plate 51.

[0060] More specifically, the adjustment mechanism 5 also includes a positioning frame 55, a sliding seat 56, a third guide plate 57, a third sliding plate 58, and a second bolt 59. The positioning frame 55 is L-shaped, which helps to limit the corners of the casting sand box 2, thereby improving the stability of the casting sand box 2 during demolding. The sliding seat 56 helps to support the positioning frame 55, facilitating its movement. The third guide plate 57 allows the sliding seat 56 to slide on it. The third sliding plate 58 helps to horizontally guide the sliding of the sliding seat 56, improving its stability. The second bolt 59 can be used with washers or rubber pads to improve its anti-loosening ability. The second bolt 59 helps to support the sliding seat 56. The fastening operation is used to adjust the distance between the two positioning frames 55 in the same row, which is convenient for demolding of casting sand boxes 2 of different sizes. It has wide adaptability. The positioning frame 55 is located on the top of the adjusting seat 53 and at the corner of the casting sand box 2. The sliding seat 56 is fixedly connected to the side of the positioning frame 55. The third guide plate 57 is fixedly connected to the top of the adjusting seat 53. The third guide plate 57 is slidably inserted into the inner cavity of the sliding seat 56. The third slide plate 58 is fixedly connected to the side of the third guide plate 57. The side of the inner wall of the sliding seat 56 is provided with a fourth sliding groove that mates with the third slide plate 58. The second bolt 59 is threadedly inserted into the top of the sliding seat 56. One end of the second bolt 59 is in contact with the third guide plate 57.

[0061] Example 2: Based on Example 1, the collecting mechanism 6 includes a collecting frame 61, a connecting seat 62, a support seat 63, and a plug-in post 64. The inner dimensions of the collecting frame 61 correspond to the inner dimensions of the discharge chamber 11, thus preventing sand from falling elsewhere. The collecting frame 61 facilitates the collection of products discharged from the casting sand box 2 for easy removal. The connecting seat 62 connects to the plug-in post 64 to lock the position of the collecting frame 61, preventing it from sliding freely. The support seat 63 helps to prevent the plug-in post 64 from sliding. The insertion post 64 is used to limit the relative position of the connecting seat 62 and the support seat 63 to lock the collecting frame 61. The outside of the insertion post 64 can be covered with a rubber sleeve to increase the anti-slip ability of the insertion post 64 and improve stability. The collecting frame 61 is slidably set at the bottom of the demolding table 1. The inner cavity of the collecting frame 61 is connected to the inner cavity of the discharge cavity 11. The connecting seat 62 is fixedly connected to the side of the collecting frame 61, and the support seat 63 is fixedly connected to the side of the demolding table 1. The insertion post 64 is slidably inserted into the inside of the connecting seat 62 and the support seat 63.

[0062] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A demolding device for a casting sand box, characterized in that: include: Demolding table (1), the demolding table (1) is provided with a material discharge cavity (11); A casting sand box (2) is located on top of a demolding table (1); Demolding structure (3), the demolding structure (3) is located on demolding table (1), the demolding structure (3) is used to perform automatic demolding operation on casting sand box (2); Auxiliary mechanism (4) is located on the demolding table (1) and is used to support and adjust the position of the demolding structure (3); Adjustment mechanism (5), which is located on top of demolding table (1), is used to support casting sand box (2); Collection mechanism (6) is located at the bottom of demolding table (1) and is used to collect the demolded products from casting sand box (2).

2. The demolding device for a casting sand box according to claim 1, characterized in that: The demolding structure (3) includes: Assembly rack (31), said assembly rack (31) is located on demolding table (1); Demolition template (32), which is located inside the assembly frame (31); A hydraulic cylinder (33) is mounted on the top of the assembly frame (31), and the output end of the hydraulic cylinder (33) is connected to the stripping template (32) for transmission.

3. The demolding device for a casting sand box according to claim 2, characterized in that: The auxiliary mechanism (4) includes: The first guide plate (41) is fixedly connected to the side of the demolding table (1); The first slide plate (42) is fixedly connected to the side of the first guide plate (41). The side of the inner wall of the assembly frame (31) is provided with a first groove that cooperates with the first guide plate (41). The side of the inner wall of the first groove is provided with a second groove that cooperates with the first slide plate (42). The snap-fit ​​plate (43) has a T-shaped groove on the side of the assembly frame (31), and the snap-fit ​​plate (43) is slidably inserted into the inner cavity of the T-shaped groove. The first guide plate (41) has a snap-fit ​​groove on the side that cooperates with the snap-fit ​​plate (43).

4. The demolding device for a casting sand box according to claim 3, characterized in that: The auxiliary mechanism (4) also includes: A fixing frame (44) is fixedly connected to the side of the assembly frame (31); The movable frame (45) is fixedly connected to the side of the snap-fit ​​plate (43), and the movable frame (45) is slidably inserted into the inner cavity of the T-slot; Square plate (46), which is fixedly connected to the side of the fixed frame (44); An operating component is located on a fixed frame (44) and is used to support and traction the movable frame (45).

5. The demolding device for a casting sand box according to claim 4, characterized in that: The operating element includes: A connecting rod (47) is fixedly connected at one end to a movable frame (45), and the outer wall of the connecting rod (47) is slidably inserted into a square plate (46). Spring (48), the spring (48) is sleeved on the outside of the connecting rod (47), one end of the spring (48) is fixedly connected to the movable frame (45), and the other end of the spring (48) is fixedly connected to the square plate (46); The operation plate (49) is fixedly connected to the other end of the connecting rod (47).

6. The demolding device for a casting sand box according to claim 1, characterized in that: The adjustment mechanism (5) includes: The second guide plate (51) is fixedly connected to the top of the demolding table (1); The second slide plate (52) is fixedly connected to the side of the second guide plate (51); Adjustment seat (53), the adjustment seat (53) is slidably sleeved on the outside of the second guide plate (51), and the side of the inner wall of the adjustment seat (53) is provided with a third sliding groove that cooperates with the second sliding plate (52); The first bolt (54) is threadedly connected to the top of the adjusting seat (53), and one end of the first bolt (54) is in contact with the top of the second guide plate (51).

7. The demolding device for a casting sand box according to claim 6, characterized in that: The adjustment mechanism (5) further includes: Positioning frame (55), the positioning frame (55) is located on the top of the adjusting seat (53), the positioning frame (55) is located at the corner of the casting sand box (2); A sliding seat (56) is fixedly connected to the side of the positioning frame (55); The third guide plate (57) is fixedly connected to the top of the adjusting seat (53), and the third guide plate (57) is slidably inserted into the inner cavity of the sliding seat (56). The third slide plate (58) is fixedly connected to the side of the third guide plate (57), and the inner wall of the sliding seat (56) is provided with a fourth sliding groove that cooperates with the third slide plate (58). The second bolt (59) is threadedly connected to the top of the sliding seat (56), and one end of the second bolt (59) is in contact with the third guide plate (57).

8. The demolding device for a casting sand box according to claim 1, characterized in that: The collection mechanism (6) includes: A collection frame (61) is slidably disposed at the bottom of the demolding table (1), and the inner cavity of the collection frame (61) is connected to the inner cavity of the discharge cavity (11). Connecting seat (62), the connecting seat (62) is fixedly connected to the side of the collection frame (61); Support (63), the support (63) is fixedly connected to the side of the demolding table (1); The plug-in post (64) is slidably inserted into the interior of the connector (62) and the support (63).