A mold for a fan of an electronically controlled silicone oil clutch for an automotive engine

Abstract

The present invention relates to a fan mold for an electronically controlled silicone oil clutch of an automotive engine, which includes a fixed mold base and guide columns fixedly installed on the fixed mold base. It also includes a molding component, a mold base, and a moving mold base. Among them, a gate that can be communicated with the molding component is provided at the center of the fixed template. The characteristics are as follows: The molding component includes an outer ring fixed mold, and a fan blade fixed mold is provided in the middle of the outer ring fixed mold. An outer ring moving mold is fixedly provided on the mold base corresponding to the position of the outer ring fixed mold, and a fan blade moving mold is provided in the middle of the outer ring moving mold. A insert is detachably linked in the middle of the fan blade fixed mold. The fan blade fixed mold is provided with the same and mutually communicable gates corresponding to the gate of the fixed mold base. A runner is provided on the insert, and a demolding mechanism is provided on the moving mold base. The beneficial effect of the present invention is to provide a fan mold for an electronically controlled silicone oil clutch of an automotive engine that can prevent adhesion, is easy to demold, will not scrape the fan blades, maintains uniform mold temperature, and has a simple structure.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and particularly to a fan mold for an electronically controlled silicone oil clutch of an automobile engine. Background Art

[0002] Molds are the mother of industrial production and are widely used in mechanical products such as electric motors and electrical appliances. They have become a symbol of the national manufacturing process level and an independent basic industrial system. There are also many types of molds. According to the different materials of the formed parts, they can be divided into stamping molds, injection molds, forging molds, and rubber molds, etc. Among them, injection molds are mainly used for the forming of parts made of thermoplastic and thermosetting materials. First, a feeding process is carried out through a barrel. The material enters the nozzle and is heated at a high temperature to become a molten state, and then is injected into the mold cavity at a high speed through the nozzle. Finally, after pressure holding and cooling, the product can be taken out. In the prior art, due to the reason of its own outer shape structure, the fan on the clutch is injection molded using an injection mold. However, in the actual production process, unreasonable design of the mold's own structure will lead to various defects in the fan. For example, since the fan blades are in a fluid shape, the requirements for the demolding mechanism are very high. If the design is unreasonable, there will be rubbing, resulting in damage to the fan blades. Moreover, due to the requirements of mold production, the outer shape size of the mold itself will increase accordingly. At this time, there will be a problem of uneven mold temperature distribution, and the mold temperature cannot be kept consistent. The actually produced fan will have problems such as whitening and uneven shrinkage. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a fan mold for an electronically controlled silicone oil clutch of an automobile engine that can prevent adhesion and is easy to demold, will not rub the fan blades, maintains balanced mold temperature and has a simple structure in view of the above-mentioned prior art deficiencies.

[0004] To achieve the above object, the present invention provides the following technical solution: A fan mold for an electronically controlled silicone oil clutch of an automobile engine, comprising a fixed mold base and guide columns fixedly installed on the fixed mold base for guiding, and further comprising a molding component, a mold base, and a moving mold base. The center of the fixed template is provided with a gate that can communicate with the molding component. It is characterized in that: the molding component includes an outer ring fixed mold fixedly arranged on the fixed mold base and participating in the molding of the fan outer ring, and a blade fixed mold fixed on the fixed mold base and participating in the molding of the fan blades is arranged in the middle of the outer ring fixed mold. An outer ring moving mold for cooperating with the outer ring fixed mold to form the fan outer ring is fixedly arranged on the mold base corresponding to the position of the outer ring fixed mold. A molding gap for forming the outer ring is provided between the outer ring fixed mold and the outer ring moving mold. A blade moving mold for cooperating with the blade fixed mold to form the fan blades is arranged in the middle of the outer ring moving mold. A detachable linkage is provided in the middle of the blade fixed mold with inserts that can be replaced and installed according to the fan model. The blade fixed mold is provided with the same and mutually communicable gates corresponding to the gate of the fixed mold base. The inserts are provided with a plurality of groups of runner channels that can divide the plastic melt and are evenly dispersed around the gate as the center. A demolding mechanism is arranged on the moving mold base.

[0005] Adopting the above technical solution, parts of the fixed mold are fixed on the injection molding machine, and the moving mold part moves towards the fixed mold part under the drive of the injection molding machine until the mold base fits with the fixed mold base. The injection molding melt enters the runner channels from the gate on the fixed mold base to start injection molding. The molding gap between the outer ring fixed mold and the outer ring moving mold forms the fan outer ring, and the blade fixed mold and the blade moving mold realize the injection molding of the fan blades. Since the installation heights of different types of clutches and fans are inconsistent, inserts with different thickness dimensions can be used according to the installation height of the cooperation between the fan and the clutch, so as to produce special fans for different clutches, realizing diversification without opening other molds. After injection molding, demolding is realized by using the demolding mechanism.

[0006] The above-mentioned fan mold for an electronically controlled silicone oil clutch of an automobile engine can be further set as: the demolding mechanism includes a pull rod that can push the fan after injection molding to demold and a moving template linked to the pull rod. Sliders are fixedly arranged on the moving template, and the sliders are annularly distributed on the moving template with the center point of the moving template as the center. Slideways are arranged on the sliders. One end of the pull rod is movably hinged on the slider and can reciprocate radially along the slideway in the slideway. The other end of the pull rod relative to the end linked to the slider is linked with a profiling male that contacts the fan blades.

[0007] The above-mentioned fan mold for an electronically controlled silicone oil clutch of an automobile engine can be further set as: the profiling male includes a connection end linked to the slider, and the other end of the profiling male relative to the connection end is provided with a pushing end that can push the fan to demold. The pushing end is provided with a profiling surface that can fit with the fan blades.

[0008] With the above technical solution, when demolding, the moving die base moves backward under the drive of the injection molding machine. First, the mold base stops moving, and the slider continues to move backward under the drive of the moving template. Due to the limitation of the slideway, the pull rod moves toward the center of the moving template in the slideway. At this time, the pull rod pushes the profiling male die toward the fixed die base to push out the product to achieve demolding. The profiling surface provided at the pushing end of the profiling male die can fit with the fan blade, and there will be no scratching of the fan blade during demolding.

[0009] The above-mentioned fan mold for an automotive engine electronically controlled silicone oil clutch can be further set as follows: a number of groups of evenly spaced ejector pin holes are provided on the insert.

[0010] With the above technical solution, after injection molding, the moving die base is demolded under the drive of the injection molding machine. The demolding mechanism pushes out the fan blade and the insert together, and the ejector pin cooperates with the ejector pin hole to eject the insert to realize the separation of the insert and the fan. On the one hand, the ejector pin hole can help the insert to separate from the fan. On the other hand, the position of the ejector pin hole is set on the insert rather than on the fan blade position, which plays a protective role in the appearance of the fan blade and avoids leaving marks.

[0011] The above-mentioned fan mold for an automotive engine electronically controlled silicone oil clutch can be further set as follows: support baffles are symmetrically arranged between the mold base and the moving template.

[0012] With the above technical solution, on the one hand, the support baffle can prevent waste materials from popping out during the production process and causing harm to people. On the other hand, it plays a role in connecting and supporting the mold base and the moving die base.

[0013] The above-mentioned fan mold for an automotive engine electronically controlled silicone oil clutch can be further set as follows: a number of groups of hot runner channels for the circulation of constant-temperature fluid are evenly distributed inside the fan fixed mold near the fixed die base. The constant-temperature fluid generally uses circulating geothermal water.

[0014] With the above technical solution, due to the requirements of mold production, the mold itself is relatively large. During the injection molding production process, it is necessary to ensure that the temperature of the molding part reaches the standard and is uniform. The purpose of the hot runner is to ensure the uniform temperature of the molding part and avoid defects such as whitening of the product due to uneven temperature during actual production.

[0015] The above-mentioned fan mold for an automotive engine electronically controlled silicone oil clutch can be further set as follows: a backing plate is additionally provided between the moving template and the moving die base.

[0016] With the above technical solution, there are multiple slider mounting hole positions on the moving template. After processing, it will cause the overall stability of the moving template to decline and the strength and hardness to be insufficient. Therefore, a backing plate is added to protect the moving template.

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0018] Figure 1 is the explosion schematic diagram of the present invention;

[0019] Figure 2 is the cross-sectional schematic diagram of the present invention;

[0020] Figure 3 is the explosion schematic diagram of the demolding mechanism of the present invention;

[0021] Figure 4 is the profiling schematic diagram of the present invention;

[0022] Figure 5 is the isometric side view schematic diagram of the fixed mold of the fan blade of the present invention. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] As Figures 1 to 3 shown, a fan mold for an electronically controlled silicone oil clutch of an automobile engine includes a fixed mold base 1 and a guide post 2 fixedly installed on the fixed mold base 1 for guiding. It also includes a molding component, a mold base 3, and a moving mold base 4. Among them, a pouring gate 11 that can communicate with the molding component is provided at the center of the fixed mold base 1. The molding component includes an outer ring fixed mold 13 fixedly arranged on the fixed mold base 1 and participating in the molding of the fan outer ring. A fan blade fixed mold 12 that is fixed on the fixed mold base 1 and participates in the molding of the fan blade is provided in the middle of the outer ring fixed mold 13. An outer ring moving mold 41 that cooperates with the outer ring fixed mold 13 to mold the fan outer ring is fixedly provided on the mold base 3 at a position corresponding to the outer ring fixed mold 13. A molding gap 44 for the outer ring to be molded is provided between the outer ring fixed mold 13 and the outer ring moving mold 41. A fan blade moving mold 42 that cooperates with the fan blade fixed mold 12 to mold the fan blade is provided in the middle of the outer ring moving mold 41. A removable insert 43 that can be replaced and installed according to the fan model is linked in the middle of the fan blade fixed mold 12. The fan blade fixed mold 12 is provided with the same pouring gate 11 corresponding to the pouring gate 11 of the fixed mold base 1 and can communicate with each other. The insert 43 is provided with a plurality of groups of runner channels 431 that are evenly dispersed around the pouring gate 11 and can divide the plastic melt. A demolding mechanism 5 is provided on the moving mold base 4.

[0025] The demolding mechanism 5 includes a pull rod 51 that can push the fan after injection molding to demold, and a moving template 45 linked to the pull rod 51. A slider 52 is fixedly provided on the moving template 45. A slideway 521 is provided inside the slider 52. One end of the pull rod 51 is movably hinged on the slider 52 and can reciprocate radially along the slideway 521 in the slideway 521. The other end of the pull rod 51 relative to the end linked to the slider 52 is linked to a profiling male mold 53 in contact with the fan blade.

[0026] The profiling male mold 53 includes a connection end linked to the slider 52. The other end of the profiling male mold 53 relative to the connection end is provided with a pushing end that can push the fan to demold. The pushing end is provided with a profiling surface 531 that can fit with the fan blade.

[0027] A number of evenly spaced ejector pin holes 432 are provided on the insert 43.

[0028] Support baffles 46 are symmetrically provided between the mold base 3 and the moving template 45.

[0029] A number of groups of hot runners 121 through which a constant-temperature fluid can circulate are evenly distributed inside the fan fixed mold 12 near the fixed mold base 1.

[0030] A spacer plate 47 is additionally provided between the moving template 45 and the moving mold base 4.

Claims

1. A fan mold for an electronically controlled silicone oil clutch of an automotive engine, comprising a fixed mold base and guide columns fixedly installed on the fixed mold base for guiding, and further comprising molding components, a mold base, and a movable mold base. Among them, a gate that can communicate with the molding components is provided at the center of the fixed template, and it is characterized in that: The molding components include an outer ring fixed mold that is fixedly arranged on the fixed mold base and participates in the molding of the outer ring of the fan. In the middle of the outer ring fixed mold, there is a blade fixed mold that is fixed on the fixed mold base and participates in the molding of the fan blades. At the position corresponding to the outer ring fixed mold on the mold base, there is an outer ring movable mold that is fixedly arranged and cooperates with the outer ring fixed mold to form the outer ring of the fan. There is a molding gap for the outer ring to be formed between the outer ring fixed mold and the outer ring movable mold. In the middle of the outer ring movable mold, there is a blade movable mold that cooperates with the blade fixed mold to form the fan blades. In the middle of the blade fixed mold, there is a detachable and linked insert that can be replaced and installed according to the fan model. The blade fixed mold is provided with the same and mutually conductive gate openings corresponding to the gate of the fixed mold base. The insert is provided with several groups of runner channels that are evenly dispersed around the gate and can divide the plastic melt. There is a demolding mechanism on the movable mold base. The insert is provided with several groups of ejector pin holes with uniform intervals. Support baffles are symmetrically arranged between the mold base and the movable template.

2. The fan mold for an electronically controlled silicone oil clutch of an automobile engine according to claim 1, wherein: The demolding mechanism includes a pull rod that can push the fan after the injection molding is completed for demolding and a movable template that is linked with the pull rod. A slider is fixedly arranged on the movable template. A slideway is arranged in the slider. One end of the pull rod is movably hinged on the slider and can reciprocate radially along the slideway in the slideway. The other end of the pull rod relative to the end linked with the slider is linked with a profiling male that contacts the fan blades.

3. The fan mold for the electronically controlled silicone oil clutch of an automobile engine according to claim 2, wherein: The profiling male includes a connection end linked with the slider. The other end of the profiling male relative to the connection end is provided with a pushing end that can push the fan for demolding. The pushing end is provided with a profiling surface that can fit with the fan blades.

4. A fan mold for an electronically controlled silicone oil clutch of an automotive engine according to claim 1 or 2, characterized in that: Several groups of hot runner channels for the circulation of constant temperature fluid are evenly distributed inside the blade fixed mold near the side of the fixed mold base.

5. A fan mold for an electronically controlled silicone oil clutch of an automobile engine according to claim 2, characterized in that: A backing plate is additionally arranged between the movable template and the movable mold base.

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