Sand leveling device for flask line

Abstract

The utility model relates to foundry machinery technical field especially relates to a sand even device for box molding line, including having set up in the sand even box of frame inside, the inside fixed mounting of sand even box has multiple groups even vertical linear arrangement's mounting frame, the inside fixed mounting of mounting frame has multiple groups even linear arrangement's shunt strip, the upper end of shunt strip is inverted V type inclined plane structure, and the shunt strip in adjacent mounting frame is staggered arrangement, the inclined plane structure surface of each group shunt strip all is located with a plurality of through type's damping hole, sand even net is still arranged in the sand even box body, and sand even net is located above mounting frame, the utility model discloses through sand even net to the sand of injection box carries out the preliminary uniform distribution processing, and the sand of passing sand even net falls to the surface of shunt strip, utilizes inverted V type inclined plane structure to realize the transverse flow dispersion of sand, and part sand falls through damping hole, produces fine even sand flow distribution, thereby reaches the multi -dimensional even cloth effect of sand.

Description

Technical Field

[0001] This utility model relates to the field of casting machinery technology, and in particular to a sand leveling device for a box molding line. Background Technology

[0002] The molding line with a mold box is a key piece of equipment in modern casting production. It mass-produces sand molds through processes such as sand filling, compaction, and mold release. In this process, the sand leveling device is responsible for filling the molding sand evenly and smoothly into the mold box. The uniformity of the molding sand distribution directly determines the overall compactness and strength distribution of the sand mold. It is an important factor in ensuring the dimensional accuracy and surface quality of the castings and preventing casting defects such as sand flushing and sand expansion. Therefore, the performance of the sand leveling device plays a crucial role in the stability of the entire casting process and the quality of the casting products.

[0003] Currently, there are two main types of sand distribution devices commonly used in box molding lines: one is the grid plate type, and the other is the oscillating spreader type. Although the grid plate structure is simple and durable, its sand distribution principle is crude. After the sand flows freely through the grid, it is easy to accumulate in the central area of ​​the sand box, resulting in insufficient filling in the corners and uneven sand density. The oscillating spreader improves the distribution through reciprocating motion, but its configuration cost and maintenance difficulty are relatively high.

[0004] Therefore, to address the above problems, a sand-dispersing device for box molding lines can be designed. This device uses a sand mesh in conjunction with multiple layers of grid plates with buffering and diversion structures to finely and uniformly disperse the filling molding sand in multiple dimensions. The device has a simple and durable structure, low configuration cost, and low maintenance difficulty. Utility Model Content

[0005] To overcome the problems of high cost and maintenance difficulty in using a oscillating spreader for sand uniform distribution, although the grid plate structure is simple and durable, its sand uniform distribution principle is crude. After the sand flows freely through the grid, it is easy to form an accumulation in the central area of ​​the sand box, resulting in insufficient filling in the corners and uneven sand density.

[0006] The technical solution of this utility model is as follows: a sand-uniforming device for a box molding line, including a frame and a sand-uniforming box disposed inside the frame. Multiple sets of uniformly vertically linearly arranged mounting frames are fixedly installed inside the sand-uniforming box. Multiple sets of uniformly linearly arranged diverter strips are fixedly installed inside the mounting frames. The upper end of the diverter strips is an inverted V-shaped inclined surface structure, and the diverter strips in adjacent mounting frames are arranged in an alternating manner. Several through-type damping holes are opened on the inclined surface of each diverter strip. A sand-uniforming mesh is also disposed inside the sand-uniforming box, and the sand-uniforming mesh is located above the mounting frames.

[0007] Preferably, a sand-distributing box is used to support and install the sand-distributing net and multiple sets of installation frames. The sand-distributing net initially distributes the molding sand injected into the box, while effectively buffering the impact force of the falling molding sand. The molding sand that passes through the sand-distributing net flows onto the surface of the distribution strip. The inverted V-shaped inclined structure is used to achieve lateral guidance and dispersion of the molding sand. At the same time, some molding sand falls through the damping holes, resulting in a fine and uniform sand flow distribution, thereby achieving a multi-dimensional uniform distribution effect of molding sand.

[0008] Preferably, the sand distribution box has several trays fixedly installed inside, and the sand distribution screen is placed on the upper end of the trays; by setting the trays to support the sand distribution screen, the sand distribution screen can be easily replaced according to the different specifications of molding sand added.

[0009] Preferably, the damping orifice is a tapered orifice with a larger diameter at the top and a smaller diameter at the bottom.

[0010] Preferably, the feeding mechanism includes two sets of feeding hoppers fixedly installed inside the frame, with the feeding hoppers located above the sand equalization box.

[0011] Preferably, each of the two sets of feeding hoppers is equipped with a slide valve at the lower end, and the lower end of the slide valve is connected to a discharge pipe; the opening and closing of the discharge pipe is controlled by the slide valve assembly, thereby completing the quantitative addition of molding sand to the sand equalization box through the feeding hopper.

[0012] Preferably, the installation mechanism includes several connecting sleeves fixedly installed around the sand leveling box. The connecting sleeves are slidably connected to the frame. A telescopic rod is provided below the connecting sleeve, and the output end of the telescopic rod is fixedly connected to the connecting sleeve.

[0013] Preferably, the telescopic rod is a servo electric push rod; the telescopic rod drives the connecting sleeve to slide up and down along the frame, thereby realizing the height adjustment of the sand equalization box to meet the operation requirements of mold boxes of different heights.

[0014] The beneficial effects of this utility model are:

[0015] The height of the sand distribution box can be adjusted by raising and lowering the connecting sleeve along the frame via a telescopic rod to accommodate mold boxes of different heights and specifications. The molding sand added into the sand distribution box is first initially evenly distributed through a sand distribution mesh, which effectively buffers the impact of the falling molding sand. The molding sand flowing through the sand distribution mesh falls onto the surface of the distribution strips, where the inverted V-shaped inclined structure achieves lateral guidance and dispersion of the molding sand. At the same time, some molding sand falls through the damping holes, resulting in a fine and uniform sand flow distribution. The molding sand passes through multiple distribution strips inside the installation frame in sequence. Under the action of multi-stage distribution, a multi-dimensional uniform distribution effect of molding sand is achieved. This device has a simple and durable structure, low configuration cost, and low maintenance difficulty. Attached Figure Description

[0016] Figure 1The diagram shown is a three-dimensional structural schematic of the sand-leveling device for a box-shaped molding line according to this utility model.

[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the feeding mechanism of the sand-equalizing device for box-shaped molding lines of this utility model.

[0018] Figure 3 The diagram shown is a three-dimensional cross-sectional view of the sand leveling box of the sand leveling device for the box-shaped molding line of this utility model.

[0019] Figure 4 The diagram shown is a three-dimensional cross-sectional view of the installation frame of the sand leveling device for the box-shaped molding line of this utility model.

[0020] Figure 5 The device shown is a sand-leveling device for a box-shaped molding line according to this utility model. Figure 4 Enlarged 3D structural diagram of the circled area;

[0021] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Sand distribution box; 201. Sand distribution mesh; 202. Mounting frame; 203. Diverter bar; 204. Damping hole; 205. Support plate; 301. Feed hopper; 302. Slide valve; 303. Discharge pipe; 401. Connecting sleeve; 402. Telescopic rod. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figure 1 , Figure 3 and Figure 4 This utility model provides an embodiment of a sand-leveling device for a box-shaped molding line, comprising a frame 1 and a sand-leveling box 2 disposed inside the frame 1. Multiple sets of uniformly vertically arranged mounting frames 202 are fixedly installed inside the sand-leveling box 2. Multiple sets of uniformly linearly arranged diverter strips 203 are fixedly installed inside the mounting frames 202. The upper end of each diverter strip 203 has an inverted V-shaped inclined surface structure, and the diverter strips 203 in adjacent mounting frames 202 are arranged in an alternating pattern. Each diverter strip 203 has several through-hole damping holes 204 on its inclined surface. The body is also equipped with a sand-distributing mesh 201, which is located above the mounting frame 202. The sand-distributing mesh 201 and multiple sets of mounting frames 202 are supported and installed by setting up a sand-distributing box 2. The sand-distributing mesh 201 performs preliminary uniform distribution treatment on the molding sand injected into the box, and effectively buffers the impact force of the falling molding sand. The molding sand that passes through the sand-distributing mesh 201 flows onto the surface of the diversion strip 203. The inverted V-shaped inclined surface structure realizes the lateral guidance and dispersion of the molding sand. At the same time, some molding sand falls through the damping hole 204, generating a fine and uniform sand flow distribution, thereby achieving a multi-dimensional uniform distribution effect of molding sand.

[0024] Please see Figure 3 , Figure 4 and Figure 5 In this embodiment, several support plates 205 are fixedly installed inside the sand distribution box 2, and the sand distribution mesh 201 is placed on the upper end of the support plate 205. By setting the support plate 205 to support the sand distribution mesh 201, the sand distribution mesh 201 can be easily replaced according to the different specifications of molding sand added. The diameter of the damping hole 204 is a tapered hole with a larger diameter at the top and a smaller diameter at the bottom.

[0025] Please see Figure 1 and Figure 2 In this embodiment, the feeding mechanism includes two sets of feeding hoppers 301 fixedly installed inside the frame 1. The feeding hoppers 301 are located above the sand equalization box 2. Each of the two sets of feeding hoppers 301 is provided with a set of slide valves 302 at its lower end. The lower end of the slide valves 302 is connected to a discharge pipe 303. The opening and closing of the discharge pipe 303 is controlled by the slide valves 302 assembly, thereby quantitatively adding molding sand to the sand equalization box 2 through the feeding hoppers 301. The installation mechanism includes several connecting sleeves 401 fixedly installed on the periphery of the sand equalization box 2. The connecting sleeves 401 are slidably connected to the frame 1. A telescopic rod 402 is provided below the connecting sleeves 401. The output end of the telescopic rod 402 is fixedly connected to the connecting sleeve 401. The telescopic rod 402 is a servo electric push rod. The telescopic rod 402 drives the connecting sleeves 401 to slide up and down along the frame 1, thereby realizing the height adjustment of the sand equalization box 2 to adapt to the operation requirements of mold boxes of different height specifications.

[0026] When working, the frame 1 is installed on the periphery of the mold box conveyor line. The telescopic rod 402 drives the connecting sleeve 401 to rise and slide on the periphery of the frame 1, thereby adjusting the height of the sand equalization box 2 to adapt to the height of the sand filling mold box. The pallet 205 is used to place a sand equalization net 201 of appropriate size in the sand equalization box 2.

[0027] The feed pipe 303 is controlled by the slide valve 302. Molding sand is added to the sand distribution box 2 through the feed hopper 301. The molding sand first undergoes preliminary uniform distribution treatment through the sand distribution net 201, which effectively buffers the impact force of the falling molding sand. The molding sand that passes through the sand distribution net 201 flows onto the surface of the diversion strip 203. The inverted V-shaped inclined structure realizes the lateral guidance and dispersion of the molding sand. At the same time, some molding sand falls through the damping hole 204, resulting in a fine and uniform sand flow distribution. The molding sand passes through the diversion strip 203 inside the multiple sets of installation frames 202 in sequence. Under the action of multi-stage diversion, the multi-dimensional uniform distribution effect of molding sand is achieved.

[0028] Through the above steps, the molding sand injected into the box is initially evenly distributed through the sand distribution mesh 201. The molding sand flowing through the sand distribution mesh 201 falls onto the surface of the diversion strip 203. The inverted V-shaped inclined structure realizes the lateral guidance and dispersion of the molding sand. At the same time, some molding sand falls through the damping holes 204, resulting in a fine and uniform sand flow distribution. The molding sand passes through the diversion strip 203 inside multiple sets of mounting frames 202 in sequence. Under the action of multi-stage diversion, a multi-dimensional uniform distribution effect of molding sand is achieved. This device has a simple and durable structure, low configuration cost, and low maintenance difficulty. It solves the problem that although the grid plate structure is simple and durable for sand distribution, its sand distribution principle is crude. After the sand flow falls freely through the grid, it is easy to form accumulation in the central area of ​​the sand box, resulting in insufficient filling at the corners and uneven sand density. The high configuration cost and maintenance difficulty of using a swing spreader for sand distribution.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A sand-leveling device for a box molding line, comprising a frame (1), characterized in that: It also includes a sand distribution box (2) set inside the frame (1). The sand distribution box (2) has multiple sets of uniformly vertically arranged mounting frames (202) fixedly installed inside. The mounting frames (202) have multiple sets of uniformly arranged diverter strips (203) fixedly installed inside. The upper end of the diverter strip (203) is an inverted V-shaped inclined structure, and the diverter strips (203) in adjacent mounting frames (202) are arranged in an alternating manner. The inclined structure surface of each diverter strip (203) is provided with several through-type damping holes (204). The sand distribution box (2) is also equipped with a sand distribution net (201), which is located above the mounting frame (202).

2. The sand leveling device for a box molding line according to claim 1, characterized in that: Several trays (205) are fixedly installed inside the sand distribution box (2), and the sand distribution net (201) is placed on the upper end of the trays (205).

3. The sand leveling device for a box molding line according to claim 1, characterized in that: The damping orifice (204) has a tapered shape with a larger diameter at the top and a smaller diameter at the bottom.

4. The sand leveling device for a box molding line according to claim 1, characterized in that: It also includes a feeding mechanism, which includes two sets of feeding hoppers (301) fixedly installed inside the frame (1), with the feeding hoppers (301) located above the sand equalization box (2).

5. A sand-leveling device for a box-forming line according to claim 4, characterized in that: Both sets of feeding hoppers (301) are equipped with a set of slide valves (302) at the lower end, and the lower end of the slide valves (302) is connected to the discharge pipe (303).

6. A sand-leveling device for a box-forming line according to claim 1, characterized in that: It also includes an installation mechanism, which includes several connecting sleeves (401) fixedly installed on the periphery of the sand-mixing box (2). The connecting sleeves (401) are slidably connected to the frame (1). A telescopic rod (402) is provided below the connecting sleeves (401), and the output end of the telescopic rod (402) is fixedly connected to the connecting sleeves (401).

7. A sand-leveling device for a box-forming line according to claim 6, characterized in that: The telescopic rod (402) adopts a servo electric actuator.

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