Water-cooled powder metallurgy die

Abstract

The utility model discloses a water-cooled powder metallurgy die. The water-cooled powder metallurgy mold comprises a section mold, the section mold comprises a water inlet pipeline and a water drainage pipeline, the water inlet pipeline and the water drainage pipeline are connected to a water cooling box in a penetrating mode, the water cooling box is installed in an inner cavity of the section mold, the water cooling box comprises a condensation groove, a cold water cavity is formed in the condensation groove, one port of the cold water cavity is connected with a cold energy pipe, and the other port of the cold water cavity is connected with a water pump. The condensation pipe is further sleeved with a heat absorption piece, and the heat absorption piece moves left and right in the condensation groove through a moving seat on the lead screw. Through the arrangement of the heat absorption pieces, the contact area between the condensation pipe and the heat dissipation cavity is increased, so that heat is absorbed and conducted more effectively, the cooling speed of the mold is increased, meanwhile, more accurate temperature control can be achieved according to the actual cooling requirement of the mold by adjusting the positions of the heat absorption pieces, and the cooling efficiency is improved. Therefore, the temperature distribution of the whole mold is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, in particular to a water-cooled powder metallurgy mold. Background Art

[0002] A water-cooled powder metallurgy mold is a mold used in the powder metallurgy process, and the temperature of the mold is controlled by a water cooling system.

[0003] In existing water-cooled powder metallurgy molds, there are many ways to cool the inside of the mold, and a commonly used one is to install condensers inside the mold, and circulate cooling water through these pipes to take away the heat generated by the mold during the production process.

[0004] However, this method still has some defects. Since the cooling water channel is fixed inside the mold, the fixed condenser may not be able to achieve differentiated cooling of different parts of the mold, which may cause the cooling effect of some areas in the mold to be worse than other areas, resulting in uneven temperature distribution and affecting the molding quality of the product.

[0005] Therefore, it is necessary to provide a water-cooled powder metallurgy mold to solve the above technical problems. Utility Model Content

[0006] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a water-cooled powder metallurgy mold which can realize cooling of different parts of the mold by arranging a movable heat absorption sheet on the condenser.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0008] A water-cooled powder metallurgy mold comprises: a mold, the mold comprises: a water inlet pipe and a drainage pipe, the water inlet pipe and the drainage pipe are connected to a water cooling box, the water cooling box is fixedly installed in the inner cavity of the mold, the water cooling box comprises: a condensation tank, a cold water cavity is arranged inside the condensation tank, one end of the cold water cavity is connected to a cold energy pipe, the condensation tubes are evenly arranged in a rectangular shape in the condensation tank, and a heat absorbing plate is also sleeved on the condensation tubes, and the heat absorbing plate moves left and right in the condensation tank through a movable seat arranged on the screw rod.

[0009] Preferably, two pairs of heat absorbing plates are provided, and the screw rod is a positive and negative thread screw rod, one end of the positive and negative thread screw rod is connected through a driving motor, and the driving motor is fixedly mounted on the outer wall of the condensation tank.

[0010] Preferably, a notch is provided at the bottom of the movable seat, a positioning hole is provided at the upper end of the heat absorbing sheet, and the heat absorbing sheet is fixed to the notch provided in the movable seat by a pre-tightening bolt.

[0011] Preferably, a hole is provided on the heat absorbing sheet, the size of the hole is the same as the diameter of the condensing tube, and the heat absorbing sheet is attached to the inner wall of the heat dissipation cavity.

[0012] Preferably, the inner cavity of the condensation tank and the outer wall of the cold water cavity are both provided with a plurality of grooves, and the width of the grooves is the same as the diameter of the condensation tube.

[0013] Preferably, a limiting groove is provided at the upper end of the cold water tank, a dustproof net is provided at the upper end of the limiting groove, and the dustproof net is embedded in the limiting groove.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model provides a heat absorbing sheet, which increases the contact area between the condenser and the heat dissipation cavity, thereby more effectively absorbing and conducting heat and accelerating the cooling speed of the mold. At the same time, the heat absorbing sheet can be moved left and right by cooperating with the screw rod and the heat absorbing sheet. By adjusting the position of the heat absorbing sheet, more precise temperature control can be achieved according to the actual cooling requirements of the mold, which enables certain areas of the mold to obtain more cooling as needed, thereby ensuring a more uniform temperature distribution of the entire mold.

[0016] (2) The utility model uses the forward and reverse screw rods in conjunction with the heat absorbing plate, and the heat absorbing plate that moves in opposite directions allows the cooling process of the mold to be adjusted according to the production schedule, thereby shortening the cooling time, speeding up the production cycle, and improving the overall production efficiency;

[0017] (3) The utility model uses a dust-proof net in conjunction with a cold water tank. In actual use, the dust-proof net can effectively block dust and other tiny particles from entering the condensation tank, thereby preventing particles from entering the cooling channel and causing blockage, affecting the flow of coolant, and reducing the possibility of cooling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a water-cooled powder metallurgy mold provided by the utility model;

[0019] Figure 2 A schematic diagram of the water cooling box and dustproof net structure of the water-cooled powder metallurgy mold provided by the utility model;

[0020] Figure 3 A schematic diagram of the water cooling box structure of a water-cooled powder metallurgy mold provided by the utility model;

[0021] Figure 4 A schematic diagram of the connection structure between the heat absorbing sheet and the condenser tube of the water-cooled powder metallurgy mold provided by the utility model;

[0022] Figure 5A schematic diagram of the connection structure between the positive and negative threaded rods and the heat absorbing sheet of the water-cooled powder metallurgy mold provided by the utility model;

[0023] Figure 6 A schematic diagram of the installation structure of the heat absorbing plate and the movable seat of the water-cooled powder metallurgy mold provided by the utility model;

[0024] Figure 7 The utility model provides a schematic diagram of the condensation tank structure of the water-cooled powder metallurgy mold.

[0025] Among them, the names corresponding to the figure numbers are: 100, mold; 101, water inlet pipe; 102, drainage pipe; 103, adapter; 200, water cooling box; 201, condensation tank; 202, heat dissipation chamber; 203, limit groove; 204, convex groove; 205, cold water chamber; 206, sealing interface; 207, condenser; 208, heat absorption plate; 209, positive and negative screw rods; 210, drive motor; 211, movable seat; 212, positioning hole; 213, pre-tightening bolt; 214, groove. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The present invention includes but is not limited to the following embodiments.

[0027] First embodiment:

[0028] like Figure 1-5 As shown, the water-cooled powder metallurgy mold provided by the utility model includes: a mold 100, the mold 100 includes: a water inlet pipe 101 and a drainage pipe 102, the water inlet pipe 101 and the drainage pipe 102 are connected to the water cooling box 200, the water cooling box 200 is fixedly installed in the inner cavity of the mold 100, and the water cooling box 200 includes: a condensation tank 201, a cold water cavity 205 is arranged inside the condensation tank 201, and a port of the cold water cavity 205 is connected to a condensation pipe 207, the condensation pipe 207 is evenly arranged in the condensation tank 201 in a rectangular shape, and a heat absorbing sheet 208 is also sleeved on the condensation pipe 207, and the heat absorbing sheet 208 is arranged at The movable seat 211 on the screw rod moves left and right in the condensation tank 201. In actual use, the condensate is first transported to the condensation tank 201 through the water inlet pipe 102 provided in the mold 100. A sealing interface 206 is provided at the interface of the condensation tube 207. The condensate is evenly distributed to each condensation tube 207 through a water channel distributor provided in the cold water chamber 205 in the condensation tank 201. The water channel distributor is a mature technology in reality. When the heat of the workpiece in the mold is uneven, the drive motor 210 is started to drive the screw rod in the convex groove 204 to rotate, so that the heat absorption plate 208 moves left and right on the condensation tube 207.

[0029] By setting the heat absorbing sheet 208, the contact area between the condenser 207 and the heat dissipation cavity 202 is increased, so that the heat is absorbed and conducted more effectively, and the cooling speed of the mold is accelerated. At the same time, the left and right movement of the heat absorbing sheet 208 is realized through the coordinated use of the screw rod and the heat absorbing sheet 208. By adjusting the position of the heat absorbing sheet 208, more precise temperature control can be achieved according to the actual cooling needs of the mold, which enables certain areas of the mold to obtain more cooling as needed, thereby ensuring a more uniform temperature distribution of the entire mold.

[0030] Second embodiment:

[0031] like Figure 5 As shown, there are two pairs of heat absorbing plates 208, and the screw rods are positive and negative threaded screw rods 209, one end of the positive and negative threaded screw rods 209 are connected through a driving motor 210, and the driving motor 210 is fixedly installed on the outer wall of the condensation tank 201. In actual use, by starting the driving motor 210, the positive and negative threaded screw rods 209 are driven to rotate by the driving motor 210, so that the symmetrically arranged multiple heat absorbing plates 208 move left and right, and the internal airflow is driven by the left and right movement of the heat absorbing plates 208.

[0032] By using the forward and reverse screw rods 209 in conjunction with the heat absorbing sheet 208, the heat absorbing sheet 208 that moves in opposite directions allows the cooling process of the mold to be adjusted according to the production schedule, thereby shortening the cooling time, speeding up the production cycle, and improving the overall production efficiency.

[0033] Third embodiment:

[0034] like Figure 5-6 As shown, a notch is provided at the bottom of the movable seat 211, and a positioning hole 212 is provided at the upper end of the heat absorbing sheet 208. The heat absorbing sheet 208 is fixed to the notch provided at the movable seat 211 by a pre-tightening bolt 213. In actual use, when installing the heat absorbing sheet 208, the heat absorbing sheet 208 is passed through the positioning hole 212 provided at the upper end, and the positioning hole 212 is aligned with the notch provided at the bottom of the movable seat 211, so that the holes of the two are aligned, and then it is fixed by the pre-tightening bolt 213.

[0035] By using the pre-tightening bolt 213 in conjunction with the positioning hole 212, the heat absorbing plate 208 can be quickly installed and removed from the movable seat 211. At the same time, the use of the pre-tightening bolt 213 can stabilize the heat absorbing plate 208 and prevent the heat absorbing plate 208 from shaking when moving.

[0036] Fourth embodiment:

[0037] like Figure 3-4As shown, a hole is opened on the heat absorbing sheet 208, and the size of the hole is the same as the diameter of the condenser tube 207, and the heat absorbing sheet 208 is attached to the inner wall of the heat dissipation cavity 202. In actual use, the holes on the heat absorbing sheet 208 can increase the contact area between the gas-liquid-solid interface and promote heat transfer. When the heat absorbing sheet 208 moves, this effect will be more significant because it can break the stable state of the vapor on the condensation surface and promote the contact between new vapor and the condensation surface, thereby improving the condensation efficiency.

[0038] Fifth embodiment:

[0039] like Figure 2-3 As shown, a limiting groove 203 is provided at the upper end of the condensation groove 201, a groove 214 is provided in the condensation groove 201, a dustproof net 300 is provided at the upper end of the limiting groove 203, and the dustproof net 300 is embedded in the limiting groove 203. In actual use, the dustproof net 300 is placed in the limiting groove 203 opened by the condensation groove 201. Through the coordinated use of the set dustproof net 300 and the condensation groove 201, in actual use, the dustproof net 300 can effectively block dust and other tiny particles from entering the condensation groove 201, preventing particles from entering the cooling channel, causing blockage, affecting the flow of coolant, and reducing the possibility of cooling efficiency.

[0040] Working principle: In actual use, the water pipe is first connected through the adapter 103 provided in the mold 100, and then the condensate is transported to the condensation tank 201 through the water inlet pipe 102, and the condensate is evenly distributed to each condensation tube 207 through a water distributor provided in the cold water chamber 205 in the condensation tank 201. By starting the drive motor 210, the positive and negative screw rods 209 are driven by the drive motor 210 to rotate, so that the symmetrically arranged multiple heat absorption plates 208 move left and right. By adjusting the position of the heat absorption plates 208, more precise temperature control can be achieved according to the actual cooling needs of the mold, which enables certain areas of the mold to obtain more cooling as needed, thereby ensuring a more uniform temperature distribution of the entire mold.

[0041] The above embodiment is only one of the preferred implementation modes of the present utility model and should not be used to limit the protection scope of the present utility model. Any changes or modifications that are made to the main design concept and spirit of the present utility model without any substantive significance, as long as the technical problems solved are still consistent with the present utility model, should be included in the protection scope of the present utility model.

Claims

1. A water-cooled powder metallurgy mold, characterized in that: include: A mold (100), the mold (100) comprising: a water inlet pipe (101) and a drainage pipe (102), the water inlet pipe (101) and the drainage pipe (102) being connected to a water cooling box (200), the water cooling box (200) being fixedly installed in the inner cavity of the mold (100), the water cooling box (200) comprising: a condensation tank (201), a cold water chamber (205) being arranged inside the condensation tank (201), one end of the cold water chamber (205) being connected to a condensation pipe (207), the condensation pipe (207) being arranged in a rectangular shape and evenly arranged in the condensation tank (201), the condensation pipe (207) being also sleeved with a heat absorbing sheet (208), the heat absorbing sheet (208) being movable left and right in the condensation tank (201) via a movable seat (211) arranged on a screw rod.

2. A water-cooled powder metallurgy mold according to claim 1, characterized in that: Two pairs of the heat absorbing sheets (208) are provided, and the screw rod is a positive and negative thread screw rod (209), one end of the positive and negative thread screw rod (209) is connected via a driving motor (210), and the driving motor (210) is fixedly mounted on the outer wall of the condensation tank (201).

3. The water-cooled powder metallurgy mold according to claim 1, characterized in that: The bottom of the movable seat (211) is provided with a notch, the upper end of the heat absorbing sheet (208) is provided with a positioning hole (212), and the heat absorbing sheet (208) is fixed to the notch provided in the movable seat (211) via a pre-tightening bolt (213).

4. The water-cooled powder metallurgy mold according to claim 2, characterized in that: The heat absorbing plate (208) is provided with a hole, the size of the hole is the same as the diameter of the condensing tube (207), and the heat absorbing plate (208) is attached to the inner wall of the heat dissipation cavity (202).

5. The water-cooled powder metallurgy mold according to claim 1, characterized in that: The inner cavity of the condensation tank (201) and the outer wall of the cold water cavity (205) are both provided with a plurality of grooves (214), and the width of the grooves (214) is the same as the diameter of the condensation tube (207).

6. The water-cooled powder metallurgy mold according to claim 1, characterized in that: A limiting groove (203) is provided at the upper end of the condensation groove (201), a dustproof net (300) is provided at the upper end of the limiting groove (203), and the dustproof net (300) is embedded in the limiting groove (203).

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