Cooling mold for metal powder injection molding

Abstract

The utility model relates to the technical field of cooling dies, and aims to solve the problem that a workpiece in a forming cavity cannot be uniformly cooled by an existing water cooling mechanism. The utility model provides a cooling mold for metal powder injection molding, which comprises an open cabinet body, a water cooling mechanism, an air blowing mechanism and an air exhaust mechanism, the water cooling mechanism comprises a plurality of cooling liquid pipes and a circulating pump set; the cooling liquid pipe is communicated with the circulating pump set; the air blowing mechanism is arranged in the bottom of the open cabinet body; a plurality of cooling liquid pipes are horizontally arranged on a top exhaust part of the air blowing mechanism; a heat exchange cavity is reserved between the cooling liquid pipe and the top of the open cabinet body; the exhaust mechanism is arranged at the top of the open cabinet body and is communicated with the heat exchange cavity; the cooling die provided by the utility model can uniformly provide cooling air for a workpiece die, so that uniform cooling of a workpiece is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling molds, in particular to a cooling mold for metal powder injection molding. Background Art

[0002] Metal powder injection molding often requires the aid of cooling molds. In the prior art, water cooling channels are often used for external cooling, resulting in a large temperature difference between the water at the water inlet of the cooling channel and the workpiece, causing uneven cooling of the workpiece. Therefore, as disclosed in the patent with publication number CN220497774U, a cooling mold for metal powder injection molding is used. The cooling liquid is preheated by passing the cooling liquid into the preheating cavity through the water inlet pipe, and the preheated water enters the cooling cavity through the connecting cavity to cool the workpiece in the cavity. However, the preheating method will affect the subsequent cooling temperature and increase additional energy consumption. In addition, as the coolant flows and exchanges heat in the pipe, the temperature gradually increases, resulting in uneven cooling of the workpiece.

[0003] Based on the above description, there is an urgent need for a cooling mold for metal powder injection molding that can evenly cool a workpiece. Utility Model Content

[0004] The utility model aims to provide a cooling mold for metal powder injection molding, aiming to solve the technical problem that the existing water cooling mechanism cannot evenly cool the workpiece in the molding cavity.

[0005] The embodiments of the present invention are implemented by the following technical solutions:

[0006] A cooling mold for metal powder injection molding, comprising an open cabinet, a water cooling mechanism, a blast mechanism and an exhaust mechanism; the water cooling mechanism comprises a plurality of cooling liquid pipes and a circulating pump group; the cooling liquid pipes are communicated with the circulating pump group; the blast mechanism is arranged at the bottom of the open cabinet; a plurality of cooling liquid pipes are horizontally arranged at the top exhaust part of the blast mechanism; a heat exchange cavity is left between the cooling liquid pipe and the top of the open cabinet; the exhaust mechanism is arranged at the top of the open cabinet and is communicated with the heat exchange cavity.

[0007] Preferably, the top cover of the air blowing mechanism is provided with a first diversion orifice plate; the first diversion orifice plate is arranged at the bottom of the coolant pipe.

[0008] Preferably, a second flow diversion orifice plate opposite to the first flow diversion orifice plate is provided inside the open cabinet; and the cooling liquid pipe is provided between the first flow diversion orifice plate and the second flow diversion orifice plate.

[0009] Preferably, the water cooling mechanism further includes a pair of buffer water tanks; the pair of buffer water tanks are respectively connected to both ends of the plurality of coolant pipes; the circulating pump group includes a pair of liquid pumps; the pair of liquid pumps are respectively connected to the pair of buffer water tanks.

[0010] Preferably, the buffer water tank is connected to a water supply pipe and a drainage pipe.

[0011] Preferably, a strap is provided on the top of the open cabinet; a through hole communicating with the heat exchange cavity is provided in the middle of the strap.

[0012] Preferably, the slatted fabric is provided with a plurality of ventilation holes.

[0013] The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects:

[0014] The utility model ventilates the bottom of the open cabinet through the blower mechanism, and the wind enters the open cabinet and flows toward the workpiece mold in the heat exchange cavity, passing through a plurality of horizontally arranged cooling liquid pipes, and cools the wind sent in by the blower mechanism through the cooling liquid pipes, so that the workpiece mold built in the heat exchange cavity is evenly cooled by the cold wind, thereby realizing even cooling of the workpiece in the mold, and the wind after heat exchange is finally discharged through the exhaust mechanism; wherein, the flow speed of the coolant in the cooling liquid pipe is accelerated by the circulating pump group, thereby improving the sufficient cooling of the wind drawn in by the blower mechanism; wherein, the blower mechanism is composed of a plurality of existing blowers. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a first structural schematic diagram of the utility model;

[0017] Figure 2 It is a second structural schematic diagram of the utility model;

[0018] Figure 3 for Figure 2 A partial cross-sectional view of .

[0019] Icons: 1-open cabinet, 2-water cooling mechanism, 21-cooling liquid pipe, 22-circulating pump group, 3-blowing mechanism, 4-exhaust mechanism, 5-heat exchange chamber, 6-first diversion orifice plate, 7-second diversion orifice plate, 8-buffer water tank, 9-bridge board. DETAILED DESCRIPTION

[0020] Example 1

[0021] See also Figures 1 to 3 The utility model provides the following technical solutions: a cooling mold for metal powder injection molding, which is suitable for the cooling of metal powder injection molding.

[0022] Specifically, Figures 1 to 3 As shown, a cooling mold for metal powder injection molding includes an open cabinet 1, a water cooling mechanism 2, a blast mechanism 3 and an exhaust mechanism 4; the water cooling mechanism 2 includes a plurality of cooling liquid pipes 21 and a circulating pump group 22; the cooling liquid pipes 21 are connected to the circulating pump group 22; the blast mechanism 3 is arranged at the bottom of the open cabinet 1; a plurality of cooling liquid pipes 21 are horizontally arranged at the top exhaust part of the blast mechanism 3; a heat exchange cavity 5 is left between the cooling liquid pipe 21 and the top of the open cabinet 1; the exhaust mechanism 4 is arranged at the top of the open cabinet 1 and is connected to the heat exchange cavity 5.

[0023] In this embodiment, ventilation is performed toward the bottom of the open cabinet 1 through the air blowing mechanism 3. After the air enters the open cabinet 1, it flows toward the workpiece mold in the heat exchange chamber 5, passing through a plurality of horizontally arranged coolant pipes 21. The air sent into the air blowing mechanism 3 is cooled through the coolant pipes 21, so that the workpiece mold built into the heat exchange chamber 5 is evenly cooled by the cold air, thereby achieving uniform cooling of the workpiece in the mold, and the air after heat exchange is finally discharged through the exhaust mechanism 4; wherein, the flow rate of the coolant in the coolant pipe 21 is accelerated by the circulating pump group 22, thereby improving the sufficient cooling of the air drawn into the air blowing mechanism 3; wherein, the air blowing mechanism 3 is composed of a plurality of existing air blowers.

[0024] Specifically, Figure 3 As shown, the top cover of the air blowing mechanism 3 is provided with a first flow distribution orifice plate 6; the first flow distribution orifice plate 6 is provided at the bottom of the cooling liquid pipe 21. The interior of the open cabinet 1 is provided with a second flow distribution orifice plate 7 opposite to the first flow distribution orifice plate 6; the cooling liquid pipe 21 is provided between the first flow distribution orifice plate 6 and the second flow distribution orifice plate 7.

[0025] The air drawn in by the blower can be diverted through the first diversion orifice plate 6 so as to facilitate heat exchange and cooling through multiple coolant pipes 21; the second diversion orifice plate 7 can both divert the cold air to ensure that it can act evenly on the workpiece mold for heat exchange and play a certain retention role so as to ensure that the air drawn in by the blower can have sufficient time for heat exchange.

[0026] Specifically, Figure 3 As shown, the water cooling mechanism 2 further includes a pair of buffer water tanks 8; the pair of buffer water tanks 8 are respectively connected to both ends of the plurality of cooling liquid pipes 21; the circulating pump group 22 includes a pair of liquid pumps; the pair of liquid pumps are respectively connected to the pair of buffer water tanks 8. The buffer water tanks 8 are connected to a water supply pipe and a drainage pipe.

[0027] A certain amount of cooling water or cooling liquid can be stored through the buffer water tank 8, which is connected to multiple cooling liquid pipes 21 at the same time; and water pumping and water replacement of the cooling liquid pipes 21 can be achieved through a pair of liquid pumps.

[0028] Specifically, Figure 1 As shown, a strap 9 is provided on the top of the open cabinet 1; a through hole communicating with the heat exchange cavity 5 is provided in the middle of the strap 9; and a plurality of ventilation holes are arranged on the strap 9.

[0029] In this embodiment, the exhaust mechanism 4 includes a shell and an exhaust fan; the exhaust fan is connected to the shell; the shell is mounted on the bridge plate 9 and is connected to the heat exchange chamber 5.

[0030] Specific implementation process: start the blowing mechanism 3 and the circulating pump group 22, pump the coolant in the coolant pipe 21 back and forth through the circulating pump group 22, and replace it, so that the wind diverted by the first diversion orifice plate 6 is fully cooled, and then the cold air passes through the second diversion orifice plate 6 and blows out to surround the workpiece mold on the top of the open cabinet 1 for uniform cooling. The workpiece mold can be placed in the open cabinet 1 after preliminary constant temperature cooling, and installed on the top of the open cabinet 1 through a board or the like; the cold air is discharged through the exhaust fan of the exhaust mechanism 4 after heat exchange.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cooling mold for metal powder injection molding, comprising an open cabinet (1), characterized in that: It also includes a water cooling mechanism (2), a blast mechanism (3) and an exhaust mechanism (4); the water cooling mechanism (2) includes a plurality of cooling liquid pipes (21) and a circulation pump group (22); the cooling liquid pipes (21) are connected to the circulation pump group (22); the blast mechanism (3) is arranged at the bottom of the open cabinet (1); a plurality of cooling liquid pipes (21) are horizontally arranged at the top exhaust part of the blast mechanism (3); a heat exchange cavity (5) is left between the cooling liquid pipe (21) and the top of the open cabinet (1); the exhaust mechanism (4) is arranged at the top of the open cabinet (1) and is connected to the heat exchange cavity (5).

2. The cooling mold for metal powder injection molding according to claim 1, characterized in that: The top cover of the air blowing mechanism (3) is provided with a first flow distribution orifice plate (6); the first flow distribution orifice plate (6) is arranged at the bottom of the cooling liquid pipe (21).

3. The cooling mold for metal powder injection molding according to claim 2, characterized in that: A second flow splitting orifice plate (7) opposite to the first flow splitting orifice plate (6) is provided inside the open cabinet (1); the cooling liquid pipe (21) is provided between the first flow splitting orifice plate (6) and the second flow splitting orifice plate (7).

4. The cooling mold for metal powder injection molding according to any one of claims 1 to 3, characterized in that: The water cooling mechanism (2) further comprises a pair of buffer water tanks (8); the pair of buffer water tanks (8) are respectively connected to two ends of the plurality of cooling liquid pipes (21); the circulating pump group (22) comprises a pair of liquid pumps; the pair of liquid pumps are respectively connected to the pair of buffer water tanks (8).

5. The cooling mold for metal powder injection molding according to claim 4, characterized in that: The buffer water tank (8) is connected to a water supply pipe and a drainage pipe.

6. The cooling mold for metal powder injection molding according to claim 4, characterized in that: A strap (9) is provided on the top of the open cabinet (1); a through hole communicating with the heat exchange cavity (5) is provided in the middle of the strap (9).

7. The cooling mold for metal powder injection molding according to claim 6, characterized in that: The butt plate (9) is provided with a plurality of ventilation holes.

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