Quick-cooling type injection mold for cooling fan production

Abstract

The utility model discloses a quick cooling type injection mold for producing a cooling fan, which comprises a main body unit, the main body unit comprises a bearing platform and a lower mold matched with the bearing platform, an upper mold and the lower mold are tightly attached to complete injection molding, and after the two molds are attached, a first connecting cylinder and a second connecting cylinder are also attached to each other, so that the cooling fan can be quickly cooled. The first pressure valve in the second connecting cylinder is inserted into an inner cavity of the first connecting cylinder, the water pump is started, cooling liquid in the water tank is conveyed to the second connecting cylinder, the first pressure valve is opened after filling, the cooling liquid flows into the first connecting cylinder, the second pressure valve at the bottom end of the second connecting cylinder is opened after filling, and the cooling liquid is discharged back to the water tank to form a circular flow path; the cooling liquid absorbs heat in the mold during circulation, cooling is achieved, cooling is accelerated through the heat-conducting fins, after cooling is completed, the upper mold is opened, a product is taken out, and the problems that in-mold natural cooling is slow and efficiency is low during cooling fan shell injection molding are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mould technical field especially relates to a quick -cooling injection mold for heat dissipation fan production. BACKGROUND

[0002] Mould is the tool that under the action of external force, utilizes specific shape to make blank (solid and liquid) shaping into the workpiece with certain shape and size. Mould is extremely widely used in forging, stamping, powder metallurgy pressing, pressure casting and engineering plastics, rubber, ceramic and other products's compression molding, injection molding forming.

[0003] In the injection production link of the heat dissipation fan shell, the mould cooling efficiency directly influences product forming cycle. The current mainstream process adopts the mode of natural cooling in mould, and the mould can be demoulded only after the injection material is completely solidified, and this process is passive heat dissipation due to the dependence on ambient temperature, so that the single piece production time is increased, and then the output efficiency of the overall production line is reduced. SUMMARY

[0004] This section aims to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract of the specification and the utility model name to avoid obscuring the purpose of this section, the abstract of the specification and the utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above problems existing in the prior art, the utility model is proposed.

[0006] Therefore, the utility model aims to provide a quick cooling injection mold for heat dissipation fan production, which is suitable for solving the problems of slow solidification and demolding, prolonged single piece production time and reduced overall output efficiency caused by the dependence on ambient temperature heat dissipation of the natural cooling mode in mould during the injection of heat dissipation fan shell.

[0007] To solve the above technical problems, the utility model provides the following technical scheme: a quick cooling injection mold for heat dissipation fan production, comprising:

[0008] The main unit comprises a bearing table and a lower mould matched with the bearing table, and the top end of the lower mould is provided with an upper mould;

[0009] The quick cooling unit comprises a water tank arranged at the bottom end of the bearing table, the surfaces of the lower mold and the upper mold are respectively provided with a first connecting barrel and a second connecting barrel, the bottom end of the inner cavity of the first connecting barrel is provided with a second pressure valve, the bottom end of the second pressure valve penetrates into the inner cavity of the water tank, the bottom end of the inner cavity of the second connecting barrel is provided with a first pressure valve, and the first pressure valve penetrates into the inner cavity of the first connecting barrel, the outer surfaces of the lower mold and the upper mold are provided with a plurality of groups of heat-conducting fins, and the top end of the bearing table is provided with a water pump for driving the cooling liquid to circulate and flow between the water tank, the first connecting barrel and the second connecting barrel, so that rapid cooling is realized.

[0010] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the first connecting barrel comprises a butt joint hole which is arranged at the top end of the first connecting barrel and is in sliding connection with the bottom end of the first pressure valve.

[0011] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the second connecting barrel comprises a butt joint interface which is arranged at the bottom end of the second connecting barrel.

[0012] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the second connecting barrel further comprises a drain pipe which is arranged at one side of the second connecting barrel.

[0013] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the water pump comprises a water outlet pipe which is arranged at the water outlet end of the water pump and is in sliding connection with the butt joint interface.

[0014] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the water pump further comprises a water inlet pipe which is arranged at the water inlet end of the water pump and penetrates into the bottom end of the water tank.

[0015] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the heat-conducting fin comprises a through hole which is arranged at the surface of the heat-conducting fin and facilitates the circulation of the cooling liquid in the first connecting barrel and the second connecting barrel.

[0016] As a preferred scheme of the quick cooling injection mold for producing the heat dissipation fan, the water tank is provided with a temperature sensor which is in electrical connection with the water pump and is used for adjusting the flow of the water pump in real time according to the temperature of the cooling liquid.

[0017] The utility model discloses an upper die and lower die closely adhere to complete injection molding, and after two molds adhere, first connecting barrel and second connecting barrel also adhere to each other, and the first pressure valve in second connecting barrel inserts first connecting barrel inner chamber, starts water pump, and the cooling liquid in water tank is transported to second connecting barrel, and after filling, first pressure valve opens, and the cooling liquid flows into first connecting barrel, and after filling, the second pressure valve at its bottom end opens, and the cooling liquid is returned to the water tank, forms circulating flow path, and the cooling liquid absorbs the heat in mold in circulation, realizes cooling and temperature reduction, and the heat conduction sheet accelerates the cooling, and after cooling is finished, the upper die is opened and the product is taken out, and the problem of slow natural cooling in mold and low efficiency when injection molding the heat dissipation fan shell is solved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will be briefly introduced to the drawing needed to be used in the embodiment description, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creating creative labor. Wherein:

[0019] Fig. 1 The whole structure schematic diagram of a kind of rapid cooling type injection mold for heat dissipation fan production is proposed in the utility model;

[0020] Fig. 2 The cross-sectional structure schematic diagram of a kind of rapid cooling type injection mold for heat dissipation fan production is proposed in the utility model;

[0021] Fig. 3 The heat conduction sheet placement schematic diagram of a kind of rapid cooling type injection mold for heat dissipation fan production is proposed in the utility model.

[0022] BRIEF DESCRIPTION OF DRAWINGS: 100, main unit;101, bearing table;102, lower die;103, upper die;200, rapid cooling unit;201, first connecting barrel;201a, butt joint hole;202, second connecting barrel;202a, butt joint;202b, drain pipe;203, water pump;203a, water outlet pipe;203b, water inlet pipe;204, first pressure valve;205, second pressure valve;206, water tank;207, heat conduction sheet;207a, through hole. DETAILED DESCRIPTION

[0023] In order to make the above purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiment of the utility model is explained in detail in the following with the drawings of the specification.

[0024] In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the spirit of the present application, therefore, the present application is not limited to the specific embodiments disclosed below.

[0025] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0026] Thirdly, the present application is described in detail in conjunction with the schematic diagram, in order to facilitate the description, the sectional view of the device structure will be partially enlarged without the general proportion, and the schematic diagram is only an example, which should not limit the scope of protection of the present application here. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0027] Embodiment 1

[0028] Reference Figs. 1-2 For the first embodiment of the present application, a rapid cooling injection mold for producing a cooling fan is provided, which realizes the effect of rapid cooling of injection material, comprising a main unit 100 and a rapid cooling unit 200.

[0029] Among them, the main unit 100 includes a bearing table 101 and a lower mold 102 matched with the bearing table 101, and the top end of the lower mold 102 is provided with an upper mold 103;

[0030] The rapid cooling unit 200 includes a water tank 206 arranged at the bottom end of the bearing table 101, and the surfaces of the lower mold 102 and the upper mold 103 are respectively provided with a first connecting cylinder 201 and a second connecting cylinder 202, the bottom end of the inner cavity of the first connecting cylinder 201 is provided with a second pressure valve 205, and the bottom end of the second pressure valve 205 penetrates into the inner cavity of the water tank 206, the bottom end of the inner cavity of the second connecting cylinder 202 is provided with a first pressure valve 204, and the first pressure valve 204 penetrates into the inner cavity of the first connecting cylinder 201, the outer surfaces of the lower mold 102 and the upper mold 103 are installed with several groups of heat conduction fins 207, and the top end of the bearing table 101 is provided with a water pump 203 for driving the cooling liquid to circulate between the water tank 206, the first connecting cylinder 201 and the second connecting cylinder 202, realizing rapid cooling, it is worth noting that: the whole device is controlled by the controller, since the controller is a commonly used device, it belongs to the existing mature technology, and its electrical connection relationship and specific circuit structure will not be described here.

[0031] During use, the upper mold 103 is tightly attached to the lower mold 102 to complete the extrusion molding of the injection material (this injection molding process is a mature technology, and thus is not described in detail), when the two molds are attached, the first connecting cylinder 201 and the second connecting cylinder 202 are also in contact and attached to each other, at this time, the first pressure valve 204 in the second connecting cylinder 202 is inserted into the inner cavity of the first connecting cylinder 201,

[0032] Subsequently, the water pump 203 is started, and the water pump 203 starts to work to extract and transport the coolant in the water tank 206 into the second connecting cylinder 202, as the coolant continues to be injected, the inner cavity of the second connecting cylinder 202 is gradually filled, when the pressure sensed by the first pressure valve 204 exceeds the preset threshold, it will automatically open to allow the coolant to flow into the first connecting cylinder 201,

[0033] The coolant continues to flow into the first connecting cylinder 201 until the inner cavity of the first connecting cylinder 201 is also filled, at this time, the second pressure valve 205 arranged at the bottom end of the first connecting cylinder 201 will also automatically open when the pressure sensed exceeds the preset threshold to discharge the coolant back into the water tank 206, in this way, the coolant forms a circulating flow path, which starts from the water tank 206, is transported to the second connecting cylinder 202 through the water pump 203, flows into the first connecting cylinder 201, and finally returns to the water tank 206,

[0034] During the circulation of the coolant, it effectively absorbs the heat generated by the product in the lower mold 102 and the upper mold 103, thereby achieving cooling of the product in the lower mold 102 and the upper mold 103, at the same time, the several groups of heat-conducting sheets 207 installed in the inner cavities of the first connecting cylinder 201 and the second connecting cylinder 202 can further conduct the temperature in the mold, so that the flowing coolant can take away more heat, thereby accelerating the cooling speed,

[0035] When the cooling is completed, the staff can open the upper mold 103 to take out the product that has been cooled and molded, solving the problem that the in-mold natural cooling mode depends on the ambient temperature for heat dissipation when the injection molding of the cooling fan shell is performed, the solidification demolding is slow, the single-piece production time is prolonged, and the overall output efficiency is reduced.

[0036] Embodiment 2

[0037] With reference to Figs. 1-3 The second embodiment of the utility model is different from the previous embodiment, the first connecting cylinder 201 comprises a butt joint hole 201a, which is arranged at the top end of the first connecting cylinder 201, and the butt joint hole 201a and the bottom end of the first pressure valve 204 are in sliding connection, and the second connecting cylinder 202 comprises a butt joint 202a, which is arranged at the bottom end of the second connecting cylinder 202;

[0038] The top end of the first connecting cylinder 201 is provided with a docking hole 201a, and the bottom end of the second connecting cylinder 202 is provided with a docking port 202a, which are combined in a sliding connection mode, so as to ensure that the first connecting cylinder 201 and the second connecting cylinder 202 are accurately docked during the closing of the mold, effectively avoiding leakage of the cooling liquid. In addition, the sliding connection structure makes the opening and closing operation of the mold more convenient, not only enhances the sealing of the connection, but also significantly improves the convenience of assembly.

[0039] Specifically, the second connecting cylinder 202 further comprises a drain pipe 202b installed on one side of the second connecting cylinder 202.

[0040] The design of the drain pipe 202b can effectively drain the cooling liquid in the second connecting cylinder 202, thereby preventing the cooling liquid from overflowing or leaking during the rising of the second connecting cylinder 202.

[0041] The water pump 203 comprises a water outlet pipe 203a installed at the water outlet end of the water pump 203, and one end of the water pump 203 is in sliding connection with the docking port 202a. The water pump 203 further comprises a water inlet pipe 203b installed at the water inlet end of the water pump 203, and the water inlet pipe 203b penetrates to the bottom end of the water tank 206.

[0042] When the first connecting cylinder 201 and the second connecting cylinder 202 are closely fitted, the water outlet pipe 203a of the water pump 203 is smoothly inserted into the inner cavity of the second connecting cylinder 202 through the docking port 202a opened at the bottom of the second connecting cylinder 202. At the same time, the water pump 203 draws the cooling liquid from the water tank 206 through the water inlet pipe 203b, and then the water pump 203 delivers the drawn cooling liquid to the inside of the second connecting cylinder 202 through the water outlet pipe 203a, ensuring that the cooling liquid can smoothly enter and fill the inner cavity of the second connecting cylinder 202, and prepare for the subsequent cooling cycle.

[0043] Specifically, the heat-conducting sheet 207 comprises a through hole 207a formed on the surface of the heat-conducting sheet 207, which facilitates the circulation of the cooling liquid in the first connecting cylinder 201 and the second connecting cylinder 202.

[0044] The through hole 207a formed on the surface of the heat-conducting sheet 207 forms a multi-channel shunt structure, increases the contact area of the cooling liquid with the heat-conducting sheet 207, strengthens the heat exchange efficiency, and at the same time avoids vortex generation, reduces the flow resistance, and improves the overall heat dissipation performance.

[0045] Specifically, the water tank 206 is provided with a temperature sensor, and the temperature sensor is electrically connected with the water pump 203, for adjusting the flow of the water pump 203 in real time according to the temperature of the cooling liquid.

[0046] The temperature sensor in the water tank 206 is linked with the water pump 203 to monitor the temperature of the cooling liquid in real time, dynamically adjust the flow of the water pump 203, increase the flow to accelerate heat dissipation when the temperature rises, reduce the flow to save energy when the temperature drops, realize intelligent temperature control, and balance efficiency and energy consumption optimization.

[0047] During use, when the first connecting barrel 201 and the second connecting barrel 202 are closely attached, the water pump 203 works in a predetermined manner, draws the cooling liquid from the water tank 206 through the water inlet pipe 203b, and delivers it into the second connecting barrel 202 through the water outlet pipe 203a, to ensure smooth cooling circulation, and meanwhile, the through holes 207a on the heat-conducting sheet 207 also effectively improve the heat dissipation performance.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A rapid cooling injection mold for a heat dissipation fan production, characterized by, The utility model relates to a quick cooling device for injection mould, which comprises a main unit (100) and a quick cooling unit (200). The main unit (100) comprises a bearing table (101) and a lower mould (102) installed on the bearing table (101), and the top end of the lower mould (102) is provided with an upper mould (103). The quick cooling unit (200) comprises a water tank (206) arranged at the bottom end of the bearing table (101), and the surfaces of the lower mould (102) and the upper mould (103) are respectively provided with a first connecting cylinder (201) and a second connecting cylinder (202).

2. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The bottom end of the inner cavity of the first connecting cylinder (201) is provided with a second pressure valve (205), and the bottom end of the second pressure valve (205) penetrates into the inner cavity of the water tank (206).

3. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The bottom end of the inner cavity of the second connecting cylinder (202) is provided with a first pressure valve (204), and the first pressure valve (204) penetrates into the inner cavity of the first connecting cylinder (201).

4. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The outer surfaces of the lower mould (102) and the upper mould (103) are provided with a plurality of groups of heat-conducting fins (207).

5. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The top end of the bearing table (101) is provided with a water pump (203) for driving the circulation of the cooling liquid between the water tank (206), the first connecting cylinder (201) and the second connecting cylinder (202) to realize rapid cooling.

6. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The first connecting cylinder (201) comprises a butt joint hole (201a) arranged at the top end of the first connecting cylinder (201), and the butt joint hole (201a) and the bottom end of the first pressure valve (204) are slidably connected.

7. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The second connecting cylinder (202) comprises a butt joint port (202a) arranged at the bottom end of the second connecting cylinder (202).

8. The rapid cooling injection mold for a heat dissipation fan according to claim 1, characterized in that: The second connecting cylinder (202) further comprises a drain pipe (202b) arranged on one side of the second connecting cylinder (202). The water pump (203) comprises a water outlet pipe (203a) arranged at the water outlet end of the water pump (203), and one end of the water pump (203) is slidably connected with the butt joint port (202a). The water pump (203) further comprises a water inlet pipe (203b) arranged at the water inlet end of the water pump (203), and the water inlet pipe (203b) penetrates into the bottom end of the water tank (206). The heat-conducting fin (207) comprises a through hole (207a) arranged on the surface of the heat-conducting fin (207) to facilitate the circulation of the cooling liquid in the first connecting cylinder (201) and the second connecting cylinder (202). The water tank (206) is provided with a temperature sensor, and the temperature sensor is electrically connected with the water pump (203) to adjust the flow of the water pump (203) in real time according to the temperature of the cooling liquid.

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