A mold for processing an engine block with cooling for a motorcycle

Abstract

The utility model provides a kind of engine cylinder body processing mould with cooling for motorcycle, including injection mould block, four cold frame boards and multiple core needles, lower surface fixed connection lower die support base of injection mould block, injection mould cavity is opened between injection mould block and lower die support base inside, four side part forming frame boards are fixedly connected to four edges of injection mould block.Cold air gun injects cold air inside cold air conveying cavity by cold conveying hose, then cold air is scattered by cooling assembly and scattered to the inside of multiple core needles, and engine cylinder body model core needle part is cooled, effectively reduce the temperature of multiple core needles, while multiple core needles pass cold air to engine cylinder body model core needle part, effectively reduce the temperature of small core needle, avoid local overheating, reduce cylinder hole wall sticking mould, scratch and size deviation, reduce hole size out-of-tolerance rate, ensure assembly accuracy.

Description

Technical Field

[0001] This utility model relates to the field of mold manufacturing, and in particular to a mold for machining engine cylinder blocks for motorcycles with cooling function. Background Technology

[0002] In the motorcycle manufacturing industry, the engine block, as a core power component, directly determines the engine's power performance, heat dissipation efficiency, and service life through its structural precision and molding quality. Because the engine block must meet high strength and high airtightness requirements, and has a complex internal oil and water passage structure, the industry commonly uses die casting for mass production. The processing mold, as the core equipment for die casting, has a decisive impact on the manufacturing quality and production efficiency of the engine block.

[0003] Due to uneven heat dissipation of the mandrel, its temperature is prone to fluctuations during the die-casting cycle: the temperature rises sharply during the molten metal filling stage and decreases slowly during the pressure holding and cooling stage, resulting in an imbalance in heat exchange between the mandrel surface and the cylinder block forming hole. On the one hand, excessively high mandrel temperatures can cause "mold sticking" on the cylinder block hole wall, which can easily lead to scratches and deformation of the hole wall during demolding, increasing the rate of out-of-tolerance cylinder block hole dimensions. On the other hand, temperature fluctuations can cause thermal expansion and contraction of the mandrel, resulting in ellipticity deviations or dimensional drift in the forming hole, affecting the subsequent cylinder block assembly accuracy, and thus increasing the risk of abnormal engine noise and oil leaks.

[0004] Therefore, it is necessary to provide a new machining mold for motorcycle engine cylinder blocks with cooling to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a machining mold for a motorcycle engine cylinder block with cooling function.

[0006] This utility model provides a cooling engine block machining mold for motorcycles, including an injection mold block, four cooling frame plates and multiple mandrels. A lower mold support base is fixedly connected to the lower surface of the injection mold block. An injection cavity is formed between the injection mold block and the lower mold support base. Four side forming frame plates are fixedly connected to the four sides of the injection mold block. The four side forming frame plates are provided with a drive component for moving the four cooling frame plates closer and further apart inside the injection mold block. Four cold air conveying chambers are respectively formed inside the four cooling frame plates. Multiple mandrels are respectively provided on the side of the four cooling frame plates that are close to each other. The multiple mandrels are respectively connected to the four cold air conveying chambers. A cooling component for dispersing cold air is provided between the four cooling frame plates and the four cold air conveying chambers.

[0007] Preferably, the drive assembly includes four telescopic electric cylinders and four push-pull rods. The four telescopic electric cylinders are fixedly connected to the four side molding frame plates on opposite sides. The output ends of the four telescopic electric cylinders are connected to one end of the four push-pull rods. The other end of the push-pull rods passes through the injection mold block to the inside of the injection cavity and is fixedly connected to the four cooling frame plates.

[0008] Preferably, the cooling assembly includes multiple circulating fan bases, multiple rotary motors, multiple motor shafts, and multiple fan heads. The multiple circulating fan bases are fixedly connected to the inner wall of the injection molding cavity on the side away from the multiple core pins. The multiple circulating fan bases are equipped with multiple rotary motors. The output ends of the multiple rotary motors are connected to the multiple motor shafts. A transmission assembly is provided between the multiple motor shafts and the multiple fan heads.

[0009] Preferably, the transmission assembly includes multiple arc-shaped transmission plates, multiple side frame plates, multiple connecting shafts, multiple U-shaped frame plates, multiple fan blade rods, multiple fan blades, and multiple auxiliary shafts. One end of each arc-shaped transmission plate is fitted onto the outer surface of multiple motor shafts. The other end of each arc-shaped transmission plate is provided with one end of each connecting shaft. The other end of each connecting shaft is fixedly connected to multiple fan heads. Two side frame plates are fixedly connected to both sides of each circulating fan base. Two receiving shafts are provided on the adjacent side of the other ends of the two side frame plates. The U-shaped frame plate is rotatably connected between the other ends of the two receiving shafts. The U-shaped frame plate is rotatably connected to the fan head through two auxiliary shafts. The output end of the fan head is connected to one end of the fan blade rod. Multiple fan blades are arranged in a circumferential array on the outer surface of the other end of the fan blade rod.

[0010] Preferably, the upper surface of the injection mold block is provided with a feed inlet, which is connected to the interior of the injection mold block.

[0011] Preferably, a cold conveying hose and a cold outlet hose are respectively provided on both sides of the upper surface of the cold conveying frame plate, and both the cold conveying hose and the cold outlet hose are connected to the injection cavity.

[0012] Compared with related technologies, the cooling engine block machining mold for motorcycles provided by this utility model has the following beneficial effects: The cold air gun injects cold air into the cold air delivery chamber through a cold air delivery hose, and then the cold air is dispersed and dispersed into the internal parts of multiple core needles through the cooling component to cool the core needle parts of the engine cylinder block model. This effectively reduces the temperature of multiple core needles. At the same time, multiple core needles transfer cold air to the core needle parts of the engine cylinder block model, effectively reducing the temperature of small core needles, avoiding local overheating, reducing mold sticking, scratches and dimensional deviations on the cylinder block hole walls, reducing the hole size deviation rate, and ensuring assembly accuracy. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of a cooling engine block machining mold for motorcycles provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the driving component. Figure 3 for Figure 1 The diagram shows the structure of the cold air delivery chamber.

[0014] Figure 4 for Figure 1 The schematic diagram of the cooling component shown Figure 5 for Figure 1 The product diagram shown is a structural schematic diagram. Numbered in the diagram: 1. Injection mold block; 101. Feed inlet; 2. Side forming frame plate; 201. Telescopic electric cylinder; 202. Push-pull rod; 3. Lower mold support base; 301. Fixed arm; 4. Cold conveying frame plate; 401. Cold conveying hose; 402. Core needle; 403. Cold air conveying chamber; 404. Cold outlet hose; 5. Circulating fan base; 501. Side frame plate; 502. Rotary motor; 503. Motor shaft; 504. Arc-shaped transmission plate; 505. Connecting shaft; 506. Fan head; 507. Receiving shaft; 508. U-shaped frame plate; 509. Auxiliary shaft; 510. Fan blade rod; 511. Fan blade. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Please refer to the following: Figure 1 -,in, Figure 1 A schematic diagram of a preferred embodiment of a cooling engine block machining mold for motorcycles provided by this utility model; Figure 2 for Figure 1 The diagram shows the structure of the driving component. Figure 3 for Figure 1 The diagram shows the structure of the cold air delivery chamber. Figure 4 for Figure 1 The diagram shows the structure of the cooling assembly. Figure 5 for Figure 1 The product diagram shown is a structural schematic.

[0017] In the specific implementation process, such as Figure 1-5As shown, the device includes an injection mold block 1, four cold conveying frame plates 4, and multiple mandrels 402. The lower surface of the injection mold block 1 is fixedly connected to a lower mold support base 3. An injection cavity is formed between the injection mold block 1 and the lower mold support base 3. Four side forming frame plates 2 are fixedly connected to the four sides of the injection mold block 1. The four side forming frame plates 2 are provided with driving components for moving the four cold conveying frame plates 4 closer and further away inside the injection mold block 1. Four cold air conveying chambers 403 are respectively formed inside the four cold conveying frame plates 4. Multiple mandrels 402 are respectively provided on the side of the four cold conveying frame plates 4 that are close to each other. The multiple mandrels 402 are respectively connected to the four cold air conveying chambers 403. A cooling component for dispersing cold air is provided between the four cold conveying frame plates 4 and the four cold air conveying chambers 403.

[0018] In the specific implementation process, such as Figure 2 As shown, the drive assembly includes four telescopic electric cylinders 201 and four push-pull rods 202. The four telescopic electric cylinders 201 are fixedly connected to the four side molding frame plates 2 on opposite sides. The output ends of the four telescopic electric cylinders 201 are connected to one end of the four push-pull rods 202. The other end of the push-pull rods 202 passes through the injection mold block 1 to the inside of the injection cavity and is fixedly connected to the four cooling frame plates 4.

[0019] In the specific implementation process, such as Figure 3-4As shown, the cooling assembly includes multiple circulating fan bases 5, multiple rotary motors 502, multiple motor shafts 503, and multiple fan heads 506. The multiple circulating fan bases 5 are fixedly connected to the inner wall of the injection molding cavity on the side away from the multiple core pins 402. Multiple rotary motors 502 are housed inside the multiple circulating fan bases 5. The output ends of the multiple rotary motors 502 are connected to the multiple motor shafts 503. A transmission assembly is provided between the multiple motor shafts 503 and the multiple fan heads 506. The transmission assembly includes multiple arc-shaped transmission plates 504, multiple side frame plates 501, multiple connecting shafts 505, multiple U-shaped frame plates 508, multiple fan blade rods 510, multiple fan blades 511, and multiple auxiliary shafts 509. One end of each arc-shaped transmission plate 504 is fitted onto the outer surface of the multiple motor shafts 503, and the other end of each arc-shaped transmission plate 504 is connected to one end of each connecting shaft 505. The other end of the connecting shaft 505 is fixedly connected to multiple fan heads 506. Each circulating fan base 5 has two side frame plates 501 fixedly connected to one end on each side. The other ends of the two side frame plates 501 are respectively provided with one end of two receiving shafts 507 on the side closest to each other. The other ends of the two receiving shafts 507 are rotatably connected to a U-shaped frame plate 508. The U-shaped frame plate 508 and the fan head 506 are rotatably connected through two auxiliary shafts 509. The output end of the fan head 506 is connected to one end of the fan blade rod 510. The outer surface of the other end of the fan blade rod 510 has multiple fan blades 511 arranged in a circular array. The upper surface of the injection mold block 1 is provided with a feed port 101, which is connected to the inside of the injection mold block 1. The upper surface of the cold conveying frame plate 4 is provided with a cold conveying hose 401 and a cold outlet hose 404 on both sides. Both the cold conveying hose 401 and the cold outlet hose 404 are connected to the injection mold cavity.

[0020] The cooling hose 401 passes through the injection mold cavity to the outside of the injection mold block 1 and is connected to the output end of the cooling air gun. The cooling air gun is a WONENG cooling air gun, which is a small cooling air gun with low air consumption, adjustable temperature, and equipped with a magnetic base. The cooling outlet hose passes through the injection mold cavity to the outside of the injection mold block 1 and is connected to the output end of the micro pump. The micro pump discharges the waste gas inside the cooling air delivery chamber 403.

[0021] The working principle of this utility model is as follows: The injection liquid is poured into the injection cavity through the inlet 101. Then, four telescopic electric cylinders 201 are activated to drive four push-pull rods 202 to move four cold conveying frame plates 4 closer to each other. The four cold conveying frame plates 4 drive multiple core needles 402 to plasticize the injection liquid. After plasticization, the cold air gun is activated by an external power source to deliver cold air into the injection cavity through the cold conveying hose 401. Then, multiple rotary motors 502 are activated to drive multiple motor shafts 503 to drive multiple arc-shaped transmission plates 504 to perform circumferential rotation. The multiple arc-shaped transmission plates 504 drive multiple fan heads 506 to perform circumferential rotation through multiple connecting shafts 505. Then, during the rotation of the fan head 506, one rotation cycle is completed under the auxiliary limit of two auxiliary shafts 509. Then, the U-shaped frame plate 508 performs a second rotation cycle under the secondary auxiliary movement of two receiving shafts 507. Then, the fan head 506 drives multiple fan blades 511 to rotate through the fan blade rod 510.

[0022] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A machining mold for a motorcycle engine cylinder block with cooling function, characterized in that, The mold includes a mold plate block (1), four cold conveying frame plates (4) and multiple core needles (402). The lower surface of the mold plate block (1) is fixedly connected to the lower mold support base (3). An injection cavity is opened between the mold plate block (1) and the lower mold support base (3). The four sides of the mold plate block (1) are fixedly connected to four side forming frame plates (2). The four side forming frame plates (2) are provided with a driving component for driving the four cold conveying frame plates (4) to move closer and further away inside the mold plate block (1). The four cold conveying frame plates (4) are respectively opened with four cold air conveying chambers (403). Multiple core needles (402) are respectively provided on the side of the four cold conveying frame plates (4). The multiple core needles (402) are respectively connected to the four cold air conveying chambers (403). A cooling component for dispersing cold air is provided between the four cold conveying frame plates (4) and the four cold air conveying chambers (403).

2. A motorcycle engine block machining mold with cooling as described in claim 1, characterized in that, The drive assembly includes four telescopic electric cylinders (201) and four push-pull rods (202). The four telescopic electric cylinders (201) are fixedly connected to the four side molding frame plates (2) on opposite sides. The output ends of the four telescopic electric cylinders (201) are connected to one end of the four push-pull rods (202). The other end of the push-pull rods (202) passes through the injection mold block (1) to the inside of the injection cavity and is fixedly connected to the four cooling frame plates (4).

3. A motorcycle engine block machining mold with cooling as described in claim 2, characterized in that, The cooling assembly includes multiple circulating fan bases (5), multiple rotary motors (502), multiple motor shafts (503), and multiple fan heads (506). The multiple circulating fan bases (5) are fixedly connected to the inner wall of the injection molding cavity on the side away from the multiple core pins (402). The multiple circulating fan bases (5) are equipped with multiple rotary motors (502) inside. The output ends of the multiple rotary motors (502) are connected to the multiple motor shafts (503). A transmission assembly is provided between the multiple motor shafts (503) and the multiple fan heads (506).

4. A motorcycle engine block machining mold with cooling as described in claim 3, characterized in that, The transmission assembly includes multiple arc-shaped transmission plates (504), multiple side frame plates (501), multiple connecting shafts (505), multiple U-shaped frame plates (508), multiple fan blade rods (510), multiple fan blades (511), and multiple auxiliary shafts (509). One end of each arc-shaped transmission plate (504) is fitted onto the outer surface of multiple motor shafts (503). The other end of each arc-shaped transmission plate (504) is provided with one end of each connecting shaft (505). The other end of each connecting shaft (505) is fixedly connected to multiple fan heads (506). Each circulating fan base ( 5) Two side frame plates (501) are fixedly connected to one end on each side. Two receiving shafts (507) are respectively provided on the other side of the two side frame plates (501). The other ends of the two receiving shafts (507) are rotatably connected to a U-shaped frame plate (508). The U-shaped frame plate (508) and the fan head (506) are rotatably connected through two auxiliary shafts (509). The output end of the fan head (506) is connected to one end of the fan blade rod (510). The outer surface of the other end of the fan blade rod (510) has a circumferential array of multiple fan blades (511).

5. A motorcycle engine block machining mold with cooling as described in claim 4, characterized in that, The upper surface of the injection mold block (1) is provided with a feed inlet (101), which is connected to the interior of the injection mold block (1).

6. A motorcycle engine block machining mold with cooling as described in claim 5, characterized in that, The upper surface of the cold conveying frame plate (4) is provided with a cold conveying hose (401) and a cold outlet hose (404) on both sides. Both the cold conveying hose (401) and the cold outlet hose (404) are connected to the injection cavity.

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