Efficient die-casting die for keyboard bottom plate

Abstract

The utility model discloses an efficient die-casting die for a keyboard bottom plate, which comprises a die main body, a plurality of die cavities are uniformly arranged on the surface of the die main body, a temperature control assembly is arranged near the die cavities, and the temperature control assembly comprises a first cavity which is arranged at the lower part in the die main body. Through cooperation of the mold body, the mold cavity and the temperature control assembly, after the mold body is heated, the viscosity between the mold cavity and molten metal in the die casting period can be reduced, the fluidity is enhanced, and the compactness and size precision of products are improved; the air supply fan can suck in external air from the air inlet hole and discharge the air through the second cavity and the air outlet hole, heat of the mold body can be partially taken out during air flowing, and the cooling rate of materials in the mold cavity can be controlled, so that a more uniform crystal structure is obtained, the mechanical property of a product is improved, and the service life of the product is prolonged. And high-efficiency and high-quality production of enterprises is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to keyboard accessory production equipment technical field especially relates to a high -efficient keyboard bottom plate is with die casting mould. BACKGROUND

[0002] Keyboard is used for operating equipment running a kind of instruction and data input device, also refers to the function key of operating a machine or equipment by system arrangement, keyboard is also part of the keyboard instrument, can also refer to the instrument using keyboard, such as piano, digital piano or electronic organ etc., keyboard helps practice typing, keyboard bottom plate is the component accessory of keyboard, needs special die casting mould to be assisted and supported in production process, die casting is a kind of precision casting method using high pressure to force metal melt into the metal mould of complex shape.

[0003] The prior art discloses a kind of high -efficient keyboard bottom plate is with die casting mould, related to keyboard accessory production equipment technical field, including base, ejection mechanism and prompting mechanism, the both sides of the base upper side is fixedly connected with support frame, although the die casting piece is removed after die completion, at this time, control air pump to extract high-pressure gas from gas tank into the ejection rod through air pipe, ejection rod is driven under the action of high-pressure gas and the die casting piece is ejected from the lower mould by ejection plate, simultaneously, No.

[0004] But its device still has certain insufficient during actual use, for example, mould main part does not have the temperature control performance of heating and cooling, when the viscosity of die casting material is big, fluidity is poor, metal liquid is easy to stick to inner wall of mould, not conducive to the high-quality forming of product, seriously, it will affect density and dimensional accuracy, in turn, it is inconvenient for the efficient and high-quality production of enterprise, therefore, it is necessary to provide a kind of high -efficient keyboard bottom plate is with die casting mould to solve the above technical problems. UTILITY MODEL CONTENT

[0005] In view of the above situation, in order to overcome the defects of prior art, the utility model provides a kind of high -efficient keyboard bottom plate is with die casting mould can realize temperature control of mould main plate, be conducive to the high-quality forming of keyboard bottom disc.

[0006] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0007] The utility model provides a high -efficient keyboard bottom plate is with die casting mould, include: mould main part, the surface of mould main part is evenly equipped with a plurality of mould cavity, the nearby of mould cavity is equipped with temperature control assembly, temperature control assembly includes: first cavity, opens in the inside below of mould main part, heat -conducting oil is set up in the inside of first cavity, first box body sets up two, is fixedly connected in the both sides of mould main part respectively, electric heating rod is located in the inside below of first box body, and electric heating rod and the contact surface of mould main part are fixedly connected, the air -supply fan is located in the inside above of first box body, and the air -supply fan and the contact surface of mould main part are fixedly connected, second cavity, opens in the inside above of mould main part, the air -outlet hole sets up a plurality of, evenly opens in the inner wall above of second cavity, second box body is fixedly connected in the rear surface of mould main part, temperature sensor is located in the inside of second box body, and temperature sensor and mould main part's contact surface are fixedly connected, wherein, can through the operation of control electric heating rod and air -supply fan whether or not, realize the temperature control effect to the inner wall of mould cavity.

[0008] Preferably, the inner wall top of the air outlet hole is fixedly connected with a filter disc.

[0009] Preferably, the front and rear surfaces of the mould main body are fixedly connected with lugs on both sides.

[0010] Preferably, the upper surface of the mould main body is provided with limiting holes at four corners.

[0011] Preferably, the inside of the second cavity is provided with an auxiliary assembly, the auxiliary assembly comprising: a partition block located at the center of the inside of the second cavity and fixedly connected with the inner wall of the second cavity; a plurality of heat-conducting blocks evenly distributed on both sides of the inside of the second cavity and fixedly connected with the inner wall of the second cavity; wherein, the heat-conducting blocks can improve the heat conduction efficiency of the heat-conducting oil to the inner wall of the mould cavity.

[0012] Preferably, the partition block and the heat-conducting blocks are made of the same material.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] (1)The utility model discloses a cooperation between the mould body, the mould cavity and the temperature control assembly, before the mould body carries out die casting operation to keyboard bottom plate material, operating personnel can supply power to electric heating rod and heat the heat conducting oil, the heat generated by heat conducting oil can be evenly transferred to the mould body, the mould body can reduce the viscosity between the mould cavity and the metal liquid during die casting after heating, and the flowability is enhanced, thereby more easily filling the cavity of the mould, reducing the difficulty of die casting, improving the density and size accuracy of the product, stopping the power supply to the electric heating rod before demoulding after pressure forming, and the air supply fan is powered, the air supply fan can suck the external air from the air inlet hole and discharge through the second cavity and the air outlet hole, and the heat of the mould body can be partially taken out during gas flow, the cooling rate of the material in the mould cavity can be controlled, thereby obtaining more uniform crystalline structure, improving the mechanical properties and service life of the product, and facilitating efficient and high-quality production of enterprises.

[0015] (2)The cooperation between the mould body, the mould cavity, the temperature control assembly and the auxiliary assembly, the heat conducting block in the second cavity has excellent heat conduction effect, can improve the rate of heat transfer of the heat conducting oil to the inner wall of the mould cavity, and improve the heat utilization rate to a certain extent, in addition, the partition block can prevent convection during the air supply of the two air supply fans, and the airflow can be smoothly discharged from the air outlet hole with heat.

[0016] (3)The cooperation between the mould body, the mould cavity, the temperature control assembly and the filter, the filter can prevent larger impurities from entering the inside of the air outlet hole, can effectively prevent the air outlet hole from being blocked, and reduce the difficulty of daily maintenance and management of the mould. DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is Figure 1 a top view sectional view;

[0019] Figure 3 It is Figure 2 a local enlarged view;

[0020] Figure 4 It is Figure 3 a local enlarged view;

[0021] Figure 5 It is Figure 2 the overall structure schematic diagram of heat conducting block.

[0022] Wherein, the corresponding name of the reference sign is: 1 - mold body, 2 - mold cavity, 3 - first cavity, 4 - heat conducting oil, 5 - first box body, 6 - electric heating rod, 7 - air supply fan, 8 - air inlet hole, 9 - second cavity, 10 - air outlet hole, 11 - second box body, 12 - temperature sensor, 13 - spacer, 14 - heat conducting block, 15 - through hole, 16 - filter, 17 - lug, 18 - limit hole. DETAILED DESCRIPTION

[0023] The utility model will be further explained in combination with the drawings and examples, and the mode of the utility model includes but is not limited to the following examples.

[0024] Example one: as Figures 1-5As shown, the utility model provides a kind of high -efficient keyboard bottom plate with die casting mould, comprising: mould main body 1, mould main body 1 is made of zinc alloy material, can guarantee die steel, still have excellent thermal effect, the surface of mould main body 1 is uniformly equipped with multiple mould cavity 2, mould cavity 2 is the mould cavity of the shape of keyboard bottom plate, the nearby of mould cavity 2 is equipped with temperature control assembly, temperature control assembly includes: first cavity 3, is opened in the inside below of mould main body 1;Heat conducting oil 4, is set in the inside of first cavity 3, heat conducting oil 4 is a kind of special oil product with better thermal stability for indirectly transferring heat, with heating uniform, temperature control accurate, can produce high temperature under low steam pressure, heat transfer effect is good, energy saving, convenient to transport and operate and other characteristics;First box body 5, set two, are respectively fixedly connected in the two sides of mould main body 1;Electric heating rod 6, is located in the inside below of first box body 1, and electric heating rod 6 and the contact surface of mould main body 1 are fixedly connected, the heat generation part of electric heating rod 6 and heat conducting oil 4 are in full contact, the model of electric heating rod 6 and air supply fan 7 is not unique, can meet the required use, in addition, it needs to be explained that the power cord of electric heating rod 6 and air supply fan 7 is all connected with external power supply device, can provide the required electric energy for their operation;Air supply fan 7, is located in the inside top of first box body 1, and air supply fan 7 and the contact surface of mould main body 1 are fixedly connected;Second cavity 9, is opened in the inside top of mould main body 1;Air outlet hole 10, is set multiple, is evenly opened in the inner wall top of second cavity 9, air outlet hole 10 and the inside of second cavity 9 are mutually communicated;Second box body 11, is fixedly connected in the rear surface of mould main body 1;Temperature sensor 12, is located in the inside of second box body 11, and temperature sensor 12 and the contact surface of mould main body 1 are fixedly connected, temperature sensor 12 is mainly composed of temperature sensitive element, conversion element and temperature conversion circuit three parts, the role of temperature sensitive element is to change the temperature signal felt into the quantity that is easy to measure with certain relationship with temperature;The role of conversion element is to convert the physical quantity output by temperature sensitive element into electrical quantity output, wherein the temperature sensitive element in temperature sensor 12 and mould main body 1 are in full contact, and temperature sensor 12 can be connected with external host computer by connecting wire, can timely feedback the stability of mould main body 1;Wherein, whether the operation of electric heating rod 6 and air supply fan 7 can be controlled to realize the temperature control effect of the inner wall of mould cavity 2.

[0025] Embodiment two: the inner wall top of air outlet hole 10 is fixedly connected with filter disc 16, filter disc 16 is made of zinc alloy material with surface covered with small micropores, filter disc 16 can prevent larger impurities from outside into the inside of air outlet hole 10, can effectively prevent air outlet hole 10 from being blocked, reduce the difficulty of die routine maintenance.

[0026] Embodiment three: the front and rear two sides of mould main body 1 are fixedly connected with lug 17, the upper surface of lug 17 can supply the penetration of fixed bolt part, can be convenient to install between mould main body 1 and the workbench of the position that can be made outside.

[0027] In the actual die casting operation, a movable die matched with the mold body 1 is needed to realize the die casting operation, wherein the lower surface of the movable die matched with the mold body 1 is matched with the limiting insertion rod corresponding to the limiting hole 18, so as to realize the precise fitting between the movable die and the fixed die.

[0028] In the actual die casting operation, a movable die matched with the mold body 1 is needed to realize the die casting operation, wherein the lower surface of the movable die matched with the mold body 1 is matched with the limiting insertion rod corresponding to the limiting hole 18, so as to realize the precise fitting between the movable die and the fixed die.

[0029] In the actual die casting operation, a movable die matched with the mold body 1 is needed to realize the die casting operation, wherein the lower surface of the movable die matched with the mold body 1 is matched with the limiting insertion rod corresponding to the limiting hole 18, so as to realize the precise fitting between the movable die and the fixed die.

[0030] In the actual die casting operation, a movable die matched with the mold body 1 is needed to realize the die casting operation, wherein the lower surface of the movable die matched with the mold body 1 is matched with the limiting insertion rod corresponding to the limiting hole 18, so as to realize the precise fitting between the movable die and the fixed die.

[0031] The above embodiment is only one of the preferred embodiments of the present application, and should not be used to limit the protection scope of the present application, but any modification or polishing without substantial meaning made in the main design idea and spirit of the present application, the technical problems solved are still consistent with the present application, and should be included in the protection scope of the present application.

Claims

1. A die casting mold for a high-performance keyboard chassis, characterized by, Include: The mold body (1), the surface of the mold body (1) is uniformly provided with a plurality of mold cavities (2), the vicinity of the mold cavity (2) is provided with a temperature control assembly, the temperature control assembly comprises: The first cavity (3) is opened below the inside of the mold body (1); The heat conducting oil (4) is arranged in the first cavity (3); The first box body (5) is arranged two, respectively fixed to the two sides of the mold body (1); The electric heating rod (6) is located below the inside of the first box body (1), and the electric heating rod (6) is fixedly connected with the contact surface of the mold body (1); The air supply fan (7) is located above the inside of the first box body (1), and the air supply fan (7) is fixedly connected with the contact surface of the mold body (1); The second cavity (9) is opened above the inside of the mold body (1); The air outlet (10) is arranged in plurality, and is uniformly opened above the inner wall of the second cavity (9); The second box body (11) is fixedly connected to the rear surface of the mold body (1); The temperature sensor (12) is located in the inside of the second box body (11), and the temperature sensor (12) is fixedly connected with the contact surface of the mold body (1); Wherein, the operation of the electric heating rod (6) and the air supply fan (7) can be controlled to realize the temperature control effect of the inner wall of the mold cavity (2).

2. The die casting mold for a high efficiency keyboard chassis according to claim 1, wherein The inner wall top of the air outlet (10) is fixedly connected with the filter (16).

3. The die casting mold for a high efficiency keyboard chassis according to claim 1, wherein The front and rear surfaces of the mold body (1) are fixedly connected with the lugs (17).

4. The die casting mold for a high efficiency keyboard chassis according to claim 1, wherein The upper surface of the mold body (1) is provided with limiting holes (18) at four corners.

5. The die casting mold for a high efficiency keyboard chassis according to claim 1, wherein The inside of the second cavity (9) is provided with an auxiliary assembly, and the auxiliary assembly comprises: The partition block (13) is located in the center of the inside of the second cavity (9), and the partition block (13) is fixedly connected with the inner wall of the second cavity (9); The heat conducting block (14) is arranged in plurality, and is uniformly distributed in the inside of the second cavity (9), and the heat conducting block (14) is fixedly connected with the inner wall of the second cavity (9); Wherein, the heat conducting block (14) can improve the heat conduction efficiency of the heat conducting oil (4) to the inner wall of the mold cavity (2).

6. The die casting mold for a high efficiency keyboard chassis according to claim 5, wherein The partition block (13) and the heat conducting block (14) are made of the same material.

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