Adjustable 3D printing sand core gravity casting cylinder cover equipment

Abstract

The utility model belongs to the field of sand mold casting, and particularly relates to adjustable 3D printing sand core gravity casting cylinder cover equipment which comprises a first sand box, a second sand box is connected to one side of the first sand box in a sliding mode, and an adjusting mechanism is arranged on one side of the first sand box. The adjusting mechanism comprises a first hollow block, one side of the first hollow block is fixedly connected to one side of the first sand box, an inner cavity of the first hollow block is rotatably connected with a first threaded rod, the surface of the first threaded rod is in threaded connection with a sleeve, and one side of the sleeve is fixedly connected with a connecting block; the first threaded rod is rotated to drive the sleeve to move, the sleeve can drive the sliding block to slide on the surface of the limiting rod, and meanwhile the sleeve can drive the second sand box to move together through the connecting block, so that the effect of adjusting the distance between the first sand box and the second sand box is achieved, and at the moment, the lengths of the first sand box and the second sand box are increased; and more sand materials can be placed, the cylinder cover with the longer length can be machined, and the using effect is better.

Description

Technical Field

[0001] This utility model relates to the field of sand casting, specifically an adjustable 3D printed sand core gravity casting cylinder head equipment. Background Technology

[0002] Sand casting is a casting method that produces castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. Because the molding materials used in sand casting are inexpensive and readily available, and the mold making is simple, it can adapt to single-piece production, batch production and mass production of castings. For a long time, it has been the basic process in casting production.

[0003] In existing technologies, 3D printing can be processed using sand casting. Sand casting involves layering sand material according to the cross-sectional information of a 3D model to print upper and lower sand molds and a core. Then, molten metal is poured into the cavity formed by the sand molds by gravity. After the molten metal cools and solidifies, the sand mold is removed to obtain the desired metal casting. Cylinder heads are important automotive components, mainly installed on top of the cylinder block, sealing the cylinder from the top and forming the combustion chamber. Cylinder heads can be produced using sand casting. In sand casting, the item used to hold the sand material is the sand box. The sand box is a key container for sand mold forming, ensuring that the sand mold maintains a stable shape and size during the production process, while also controlling the size and density of the sand particles. However, most existing sand boxes have fixed sizes and cannot be adjusted. Since different cylinder heads vary in length, a sand box of a certain size cannot be used for cylinder heads of different lengths, reducing its effectiveness. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, most sand boxes are fixed in size and cannot be adjusted. However, different cylinder heads vary in length, which means that a sand box of one size cannot be used for cylinder heads of different lengths, thus reducing the effectiveness of use. This utility model proposes an adjustable 3D printed sand core gravity casting cylinder head equipment.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an adjustable 3D printing sand core gravity casting cylinder head equipment, including a first sand box, a second sand box slidably connected to one side of the first sand box, and an adjustment mechanism provided on one side of the first sand box.

[0006] The adjustment mechanism includes a first hollow block, one side of which is fixedly connected to one side of a first sand box. A first threaded rod is rotatably connected to the inner cavity of the first hollow block. A sleeve is threadedly connected to the surface of the first threaded rod. A connecting block is fixedly connected to one side of the sleeve. One side of the connecting block is fixedly connected to one side of a second sand box. A first fixing block is fixedly connected to one side of the first sand box. A limit rod is fixedly connected to one side of the first fixing block. A slider is fixedly connected to the surface of the sleeve. The inner cavity of the slider is slidably connected to the surface of the limit rod.

[0007] Preferably, a scraping block is fixedly connected to one side of the first sand box, and the scraping block is triangular in shape.

[0008] Preferably, a baffle plate is provided at the top of the first threaded rod, one side of the baffle plate is fixedly connected to one side of the first sand box, and a guide plate is fixedly connected to the top of the baffle plate.

[0009] Preferably, a second hollow block is fixedly connected to one side of the first sand box, and a second threaded rod is provided on one side of the first threaded rod, with the surface of the second threaded rod threadedly connected to the inner cavity of the second hollow block.

[0010] Preferably, a second fixing block is fixedly connected to one side of the limiting rod, and the diameter of the second fixing block is larger than the diameter of the limiting rod.

[0011] Preferably, a reinforcing plate is provided on one side of the second sand box, and one side of the reinforcing plate is fixedly connected to one side of the first sand box. The reinforcing plate is L-shaped.

[0012] Preferably, the surface of the first threaded rod is provided with anti-slip grooves, and a plurality of anti-slip grooves are provided.

[0013] The advantages of this utility model are:

[0014] This invention uses the rotation of a first threaded rod to move a sleeve, which in turn causes a slider to slide on the surface of a limiting rod. Simultaneously, the sleeve, through a connecting block, moves the second sand box, thus adjusting the distance between the first and second sand boxes. This increases the length of both sand boxes, allowing for the placement of more sand material and the processing of longer cylinder heads, resulting in better performance. When the second sand box moves inside the first sand box and reduces the distance, it causes a triangular scraping block to move inside the first sand box, scraping off any sand material adhering to the inner wall of the first sand box. This prevents the sand material from affecting the movement of the second sand box, solving the problem that most first sand boxes have fixed dimensions and cannot be adjusted, while different cylinder heads vary in length, making a single-size first sand box unsuitable for different lengths and reducing performance. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall equipment of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the first threaded rod of this utility model;

[0018] Figure 3 This is a three-dimensional sectional view of the second fixing block of this utility model;

[0019] Figure 4 This is a three-dimensional sectional view of the second threaded rod of this utility model.

[0020] In the diagram: 1. First sand box; 2. Second sand box; 3. Adjustment mechanism; 301. First hollow block; 302. First threaded rod; 303. Sleeve; 304. Connecting block; 305. First fixing block; 306. Limiting rod; 307. Sliding block; 4. Scraping block; 5. Baffle plate; 6. Guide plate; 7. Second hollow block; 8. Second threaded rod; 9. Second fixing block; 11. Reinforcing plate; 12. Anti-slip groove. Detailed Implementation

[0021] 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 scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses an adjustable 3D-printed sand core gravity casting cylinder head device. (Refer to...) Figure 1-2An adjustable 3D printing sand core gravity casting cylinder head equipment includes a first sand box 1, a second sand box 2 slidably connected to one side of the first sand box 1, an adjustment mechanism 3 provided on one side of the first sand box 1, and a notch for each of the first sand box 1 and the second sand box 2, so that the first sand box 1 and the second sand box 2 can be staggered together, and the interior of the first sand box 1 and the second sand box 2 can hold sand material and cylinder head mold, thereby for processing cylinder head.

[0024] The adjustment mechanism 3 includes a first hollow block 301, one side of which is fixedly connected to one side of the first sand box 1. A first threaded rod 302 is rotatably connected to the inner cavity of the first hollow block 301. A sleeve 303 is threadedly connected to the surface of the first threaded rod 302. A connecting block 304 is fixedly connected to one side of the sleeve 303. One side of the connecting block 304 is fixedly connected to one side of the second sand box 2. A first fixing block 305 is fixedly connected to one side of the first sand box 1. A limit rod 306 is fixedly connected to one side of the first fixing block 305. A slider 307 is fixedly connected to the surface of the sleeve 303. The inner cavity of the slider 307 is slidably connected to the surface of the limit rod 306.

[0025] The interior of the first hollow block 301 can be used to house the first threaded rod 302, allowing the first threaded rod 302 to rotate on one side of the first sand box 1. When the first threaded rod 302 rotates, it drives the sleeve 303 to rotate as well. The connecting block 304 can be used to connect the sleeve 303 and the second sand box 2, so that when the sleeve 303 moves, it drives the connecting block 304 and the second sand box 2 to move together. At this time, the second sand box 2 will move inside the first sand box 1, thereby achieving the effect of adjusting the distance between the first sand box 1 and the second sand box 2. The increased length of sand box 1 and sand box 2 allows for the storage of more sand material and the fabrication of longer cylinder heads, resulting in better performance. Furthermore, the first sand box 1 and the second sand box 2 are adjusted via the first threaded rod 302, making the second sand box 2 more stable after movement. The first fixing block 305 can be connected to the limiting rod 306, which in turn limits the sleeve 303 via the slider 307. This ensures that the sleeve 303 can move smoothly when the first threaded rod 302 rotates, preventing simultaneous rotation.

[0026] Reference Figure 1 A scraping block 4 is fixedly connected to one side of the first sand box 1. The scraping block 4 is triangular in shape. There are two scraping blocks 4, which are located on one side of the first sand box 1 and the second sand box 2 respectively, and are both located in the inner cavity of the first sand box 1 and the second sand box 2. This allows the scraping block 4 to scrape off the sand material adhering to the inner wall of the first sand box 1 and the second sand box 2 when the second sand box 2 moves inside the first sand box 1, so as not to affect the movement of the second sand box 2.

[0027] Reference Figure 1A baffle plate 5 is provided on the top of the first threaded rod 302. One side of the baffle plate 5 is fixedly connected to one side of the first sand box 1. A guide plate 6 is fixedly connected to the top of the baffle plate 5. The baffle plate 5 can be used to block the first threaded rod 302, so that the sand material inside the first sand box 1 and the second sand box 2 is not easy to fall onto the surface of the first threaded rod 302, and thus will not affect the threaded connection between the sleeve 303 and the sleeve 303. The guide plate 6 can slide the sand material that falls on the upper side of the baffle plate 5 down, so that manual cleaning is not required.

[0028] Reference Figure 4 A second hollow block 7 is fixedly connected to one side of the first sand box 1, and a second threaded rod 8 is provided on one side of the first threaded rod 302. The surface of the second threaded rod 8 is threadedly connected to the inner cavity of the second hollow block 7. The second hollow block 7 and the second threaded rod 8 are both located on one side of the first threaded rod 302. The second threaded rod 8 can move inside the second hollow block 7 by rotation, and after moving, it squeezes the first threaded rod 302. This makes it difficult for the first threaded rod 302 to rotate, making the second sand box 2 more stable.

[0029] Reference Figure 3 A second fixing block 9 is fixedly connected to one side of the limiting rod 306. The diameter of the second fixing block 9 is larger than the diameter of the limiting rod 306. The second fixing block 9 can be used to limit the limiting rod 306, so that when the slider 307 moves on the surface of the first fixing block 305, it is not easy to disengage from the limiting rod 306, and thus the sleeve 303 is not easy to disengage from the first threaded rod 302.

[0030] Reference Figure 2 A reinforcing plate 11 is provided on one side of the second sand box 2. One side of the reinforcing plate 11 is fixedly connected to one side of the first sand box 1. The reinforcing plate 11 is L-shaped. The reinforcing plate 11 can limit one side of the second sand box 2, so that the second sand box 2 is not easy to shake or deform when it moves on one side of the first sand box 1, and the movement is smoother.

[0031] Reference Figure 1 The surface of the first threaded rod 302 is provided with anti-slip grooves 12. Several anti-slip grooves 12 are provided. The anti-slip grooves 12 can prevent people from slipping when rotating the first threaded rod 302 and making it difficult to rotate the first threaded rod 302.

[0032] Working principle: When using this device, firstly, cylinder head molds and sand material are placed inside the two sand boxes 1 and 2 respectively, forming upper and lower sand molds. Then, pouring and venting ports are carved out on the surface of the sand material, and a sand core for processing the cylinder head is placed inside the sand mold. Finally, liquid metal is poured to form the cylinder head. When processing cylinder heads of different lengths, the first threaded rod 302 is rotated to move the sleeve 303. The sleeve 303 will drive the slider 307 to slide on the surface of the limiting rod 306. At the same time, the sleeve 303 will also drive the second sand box 2 to move together through the connecting block 304, thereby achieving the effect of adjusting the distance between the first sand box 1 and the second sand box 2. At this point, the lengths of the first sand box 1 and the second sand box 2 will increase, allowing for the placement of more sand material and the processing of longer cylinder heads, resulting in better performance. When the second sand box 2 moves inside the first sand box 1 and reduces the gap, the second sand box 2 will drive the triangular scraping block 4 to move inside the first sand box 1, allowing the scraping block 4 to scrape off the sand material adhering to the inner wall of the first sand box 1. This prevents the sand material from affecting the movement of the second sand box 2. This solves the problem that most first sand boxes 1 have a fixed size and cannot be adjusted, while different cylinder heads have different lengths, causing a single size of first sand box 1 to be unsuitable for cylinder heads of different lengths, thus reducing the performance.

[0033] 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 claimed utility model.

Claims

1. An adjustable 3D printed sand core gravity casting cylinder head device, characterized in that: It includes a first sand box (1), a second sand box (2) is slidably connected to one side of the first sand box (1), and an adjustment mechanism (3) is provided on one side of the first sand box (1); The adjustment mechanism (3) includes a first hollow block (301), one side of which is fixedly connected to one side of the first sand box (1). The inner cavity of the first hollow block (301) is rotatably connected to a first threaded rod (302). The surface of the first threaded rod (302) is threadedly connected to a sleeve (303). One side of the sleeve (303) is fixedly connected to a connecting block (304). One side of the connecting block (304) is fixedly connected to one side of the second sand box (2). One side of the first sand box (1) is fixedly connected to a first fixing block (305). One side of the first fixing block (305) is fixedly connected to a limit rod (306). The surface of the sleeve (303) is fixedly connected to a slider (307). The inner cavity of the slider (307) is slidably connected to the surface of the limit rod (306).

2. The adjustable 3D printing sand core gravity casting cylinder head equipment according to claim 1, characterized in that: A scraping block (4) is fixedly connected to one side of the first sand box (1), and the scraping block (4) is triangular in shape.

3. The adjustable 3D printing sand core gravity casting cylinder head equipment according to claim 1, characterized in that: The top of the first threaded rod (302) is provided with a baffle plate (5), one side of the baffle plate (5) is fixedly connected to one side of the first sand box (1), and the top of the baffle plate (5) is fixedly connected with a guide plate (6).

4. The adjustable 3D printing sand core gravity casting cylinder head equipment according to claim 1, characterized in that: A second hollow block (7) is fixedly connected to one side of the first sand box (1), and a second threaded rod (8) is provided on one side of the first threaded rod (302). The surface of the second threaded rod (8) is threadedly connected to the inner cavity of the second hollow block (7).

5. The adjustable 3D printing sand core gravity casting cylinder head equipment according to claim 1, characterized in that: A second fixing block (9) is fixedly connected to one side of the limiting rod (306), and the diameter of the second fixing block (9) is larger than the diameter of the limiting rod (306).

6. The adjustable 3D printing sand core gravity casting cylinder head equipment according to claim 1, characterized in that: A reinforcing plate (11) is provided on one side of the second sand box (2). One side of the reinforcing plate (11) is fixedly connected to one side of the first sand box (1). The reinforcing plate (11) is L-shaped.

7. The adjustable 3D printing sand core gravity casting cylinder head equipment according to claim 1, characterized in that: The surface of the first threaded rod (302) is provided with anti-slip grooves (12), and there are several anti-slip grooves (12).

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