A high efficiency vented sand core cured engine block mold

Abstract

The utility model discloses a high -efficient exhaust sand core solidification engine cylinder body mould, exhaust opening and closing mechanism includes the partition that fixed communication in the lower core box one side, one side fixed communication of partition has the communicating pipe, and the inner wall of communicating pipe one side fixed communication has the branch pipe, and the middle part fixed communication of communicating pipe other side has the output pipe, and the other end fixed communication of output pipe has the exhaust box, and the inner wall of exhaust box is provided with the strip hole, and the bottom fixed connection of strip hole inner wall has the first connecting rod, and the both ends of first connecting rod outer wall all have the sliding block of slidingly connected, the utility model discloses, when the mould is closed, the movable mould of top will extrude to the limiting rod in the process of closing, and the second wedge block will promote the first wedge block of bottom to carry out the displacement inwards, and under the activity of first wedge block, the inside of exhaust box is closed, and in the process of processing, in the process of closing, just seal processing is carried out to the inside, need not manually open and close, improve the work efficiency of staff in the processing process.

Description

Technical Field

[0001] This utility model relates to the field of engine cylinder block mold technology, specifically to a high-efficiency exhaust sand core curing engine cylinder block mold. Background Technology

[0002] The engine block is the core load-bearing and functional component of an internal combustion engine. Its interior integrates complex cavity structures such as air passages, water jackets, and oil passages. These cavities are primarily formed in a mold using sand cores and then cast together with the cylinder block body. With the automotive industry's increasing demands for engine power, fuel economy, and emissions, the precision of the cylinder block cavities (such as the smoothness of the air passages and the uniformity of the water jacket wall thickness) and the quality of the sand core forming (free from defects such as porosity, cracks, and poor collapsibility) have become key factors determining engine performance and service life. This places higher demands on the sand core curing efficiency and exhaust capacity of the cylinder block mold.

[0003] As a core forming equipment in power component manufacturing, the smoothness of the sand-shooting process in engine block molds directly determines the production rhythm and product quality. Before sand-shooting, the internal cavity of the mold must be tightly sealed. This is a crucial prerequisite for preventing sand leakage and ensuring the accuracy of sand core forming. However, in current conventional production scenarios, traditional engine block molds generally lack mold closing components integrated with the body, making it impossible to achieve automatic sealing between processes. This requires workers to perform additional manual closing operations before sand-shooting, which not only increases repetitive labor but also easily leads to inconsistent sealing effects due to the time-consuming and uncertain nature of manual operation. Frequent manual intervention not only disrupts the smoothness of continuous production but also directly reduces overall production efficiency and poses a hidden danger to the stability of the subsequent sand core curing process. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency exhaust sand core curing engine cylinder block mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model proposes a high-efficiency exhaust sand core curing engine cylinder block mold, including a lower core box, wherein an exhaust opening and closing mechanism is provided on one side of the lower core box;

[0006] The exhaust opening and closing mechanism includes a partition plate fixedly connected to one side of the lower core box. A connecting pipe is fixedly connected to one side of the partition plate. A branch pipe is fixedly connected to one side of the inner wall of the connecting pipe. An output pipe is fixedly connected to the middle of the other side of the connecting pipe. An exhaust box is fixedly connected to the other end of the output pipe. A strip-shaped hole is opened in the inner wall of the exhaust box. A first connecting rod is fixedly connected to the bottom of the inner wall of the strip-shaped hole. Sliding blocks are slidably connected to both ends of the outer wall of the first connecting rod. A spring is sleeved on the outer wall of the first connecting rod.

[0007] In one example, a first wedge block is fixedly connected to the top of each of the two sliders, and a baffle is fixedly connected to one side of each of the two first wedge blocks.

[0008] In one example, limit rods are interspersed on both sides of the top of the exhaust box, and a second wedge block is fixedly connected to the bottom of each of the two limit rods. The second wedge block is directly opposite the first wedge block. A limit plate is fixedly connected to the top of each of the two limit rods.

[0009] In one example, a sealing strip is fixedly connected to one side of both baffles.

[0010] In one example, the exhaust box has a circular hole inside.

[0011] In one example, an exhaust pipe is fixedly connected to one side of the exhaust box, and the exhaust pipe is directly opposite the circular hole.

[0012] In one example, a base plate is fixedly connected to one side of the lower core box, and the exhaust box is located on top of the base plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. An venting box is located on one side of the top of the lower core box and connected to the lower core box via a connecting pipe. The venting box has a strip-shaped hole inside, with a first connecting rod fixedly connected to the bottom of the inner wall of the strip-shaped hole. Sliding blocks are slidably connected to both sides of the outer wall of the first connecting rod. A spring is located between the two sliding blocks and is sleeved on the outer wall of the first connecting rod. A first wedge block is located at the top of the two sliding blocks, with a baffle fixedly connected to one side of the first wedge block. When the mold is closed, the moving mold at the top will press against the limiting rod during the mold closing process. During continuous pressing, the second wedge block will push the first wedge block at the bottom to move inward. The movement of the first wedge block will cause the baffles on both sides to move inward, thus sealing the interior of the venting box. This provides better sealing during use, allowing for internal sealing during mold closing without manual opening or closing, improving the efficiency of the workers during the processing.

[0015] 2. During use, the sealing strips installed on one side of the two baffles improve the sealing performance between them after they are closed, making the two baffles contact more closely, preventing internal air leakage, and further improving the sealing performance during the production process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the lower core box structure of this utility model;

[0018] Figure 3 This is a schematic diagram of one side of the lower core box structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of the exhaust box of this utility model;

[0020] Figure 5 This utility model Figure 4 Enlarged structural diagram at point A.

[0021] In the diagram: 1. Lower core box; 2. Exhaust opening and closing mechanism; 201. Partition plate; 202. Connecting pipe; 203. Branch pipe; 204. Output pipe; 205. Exhaust box; 206. Strip hole; 207. First connecting rod; 208. Slider; 209. Spring; 210. First wedge block; 211. Limiting rod; 212. Second wedge block; 213. Limiting plate; 214. Baffle; 215. Sealing strip; 216. Round hole; 217. Exhaust pipe; 3. Base plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a high-efficiency exhaust sand core curing engine cylinder block mold, including a lower core box 1, and an exhaust opening and closing mechanism 2 is provided on one side of the lower core box 1;

[0024] The exhaust opening and closing mechanism 2 includes a partition 201 fixedly connected to one side of the lower core box 1. A connecting pipe 202 is fixedly connected to one side of the partition 201. A branch pipe 203 is fixedly connected to one side of the inner wall of the connecting pipe 202. An output pipe 204 is fixedly connected to the middle of the other side of the connecting pipe 202. An exhaust box 205 is fixedly connected to the other end of the output pipe 204. A strip hole 206 is opened on the inner wall of the exhaust box 205. A first connecting rod 207 is fixedly connected to the bottom of the inner wall of the strip hole 206. Sliding blocks 208 are slidably connected to both ends of the outer wall of the first connecting rod 207. A spring 209 is sleeved on the outer wall of the first connecting rod 207.

[0025] The top of each of the two sliders 208 is fixedly connected to a first wedge block 210, and a baffle 214 is fixedly connected to one side of each of the two first wedge blocks 210.

[0026] Limiting rods 211 are inserted and connected to both sides of the top of the exhaust box 205. A second wedge block 212 is fixedly connected to the bottom of each limiting rod 211, and the second wedge block 212 is directly opposite the first wedge block 210. Limiting plates 213 are fixedly connected to the top of each limiting rod 211.

[0027] In use, an exhaust box 205 is located on one side of the top of the lower core box 1. The exhaust box 205 is connected to the lower core box 1 via a connecting pipe 202. A strip-shaped hole 206 is provided inside the exhaust box 205. A first connecting rod 207 is fixedly connected to the bottom of the inner wall of the strip-shaped hole 206. Sliding blocks 208 are slidably connected to both sides of the outer wall of the first connecting rod 207. A spring 209 is provided between the two sliding blocks 208 and is sleeved on the outer wall of the first connecting rod 207. A first wedge block 210 is provided at the top of the two sliding blocks 208, and a baffle 2 is fixedly connected to one side of the first wedge block 210. 14. When the mold is closed, the moving mold at the top will press against the limit rod 211 during the mold closing process. During the continuous pressing process, the second wedge block 212 will push the first wedge block 210 at the bottom to move inward. As a result, the movement of the first wedge block 210 will cause the baffles 214 on both sides to move inward, thereby sealing the interior of the vent box 205. This allows for better sealing during use, and the interior can be sealed during the mold closing process without the need for manual opening and closing, thus improving the work efficiency of the workers during the processing.

[0028] Furthermore, a sealing strip 215 is fixedly connected to one side of each of the two baffles 214.

[0029] In use, the sealing strip 215 set on one side of the two baffles 214 makes the sealing between the two baffles 214 better after they are closed, and makes the contact between the two baffles 214 closer, preventing internal air leakage and improving the sealing performance during the production process.

[0030] The exhaust box 205 has a round hole 216 inside.

[0031] An exhaust pipe 217 is fixedly connected to one side of the exhaust box 205, and the exhaust pipe 217 is directly opposite the position of the round hole 216.

[0032] A base plate 3 is fixedly connected to one side of the lower core box 1, and the exhaust box 205 is located on top of the base plate 3.

[0033] The circular hole 216 inside the vent box 205 is interconnected with the vent pipe 217, so that when the moving mold is removed, the internal parts can be vented through the vent pipe 217. The bottom plate 3 on the side of the lower core box 1 is mainly used to support the vent box 205.

[0034] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so they are described more simply; relevant parts can be referred to the descriptions of the method embodiments.

[0035] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A high-efficiency exhaust sand core curing engine cylinder block mold, comprising a lower core box (1), wherein an exhaust opening and closing mechanism (2) is provided on one side of the lower core box (1); Its features are: The exhaust opening and closing mechanism (2) includes a partition (201) fixedly connected to one side of the lower core box (1). A connecting pipe (202) is fixedly connected to one side of the partition (201). A branch pipe (203) is fixedly connected to one side of the inner wall of the connecting pipe (202). An output pipe (204) is fixedly connected to the middle of the other side of the connecting pipe (202). An exhaust box (205) is fixedly connected to the other end of the output pipe (204). A strip hole (206) is opened on the inner wall of the exhaust box (205). A first connecting rod (207) is fixedly connected to the bottom of the inner wall of the strip hole (206). A slider (208) is slidably connected to both ends of the outer wall of the first connecting rod (207). A spring (209) is sleeved on the outer wall of the first connecting rod (207).

2. The high-efficiency exhaust sand core curing engine cylinder block mold according to claim 1, characterized in that: The top of each of the two sliders (208) is fixedly connected to a first wedge block (210), and a baffle (214) is fixedly connected to one side of each of the two first wedge blocks (210).

3. The high-efficiency exhaust sand core curing engine cylinder block mold according to claim 2, characterized in that: Limiting rods (211) are inserted and connected to both sides of the top of the exhaust box (205). The bottom of each of the two limiting rods (211) is fixedly connected to a second wedge block (212), and the second wedge block (212) is directly opposite to the first wedge block (210). The top of each of the two limiting rods (211) is fixedly connected to a limiting plate (213).

4. The high-efficiency exhaust sand core curing engine cylinder block mold according to claim 2, characterized in that: A sealing strip (215) is fixedly connected to one side of each of the two baffles (214).

5. The high-efficiency exhaust sand core curing engine cylinder block mold according to claim 1, characterized in that: The exhaust box (205) has a round hole (216) inside.

6. The high-efficiency exhaust sand core curing engine cylinder block mold according to claim 1, characterized in that: The exhaust box (205) is fixedly connected to an exhaust pipe (217) on one side, and the exhaust pipe (217) is directly opposite the round hole (216).

7. The high-efficiency exhaust sand core curing engine cylinder block mold according to claim 5, characterized in that: The bottom plate (3) is fixedly connected to one side of the lower core box (1), and the exhaust box (205) is located on the top of the bottom plate (3).

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