A casting mold with cooling function

Abstract

This utility model discloses a casting mold with a cooling function, including an upper mold and a lower mold on the lower side of the upper mold. Both the upper and lower molds have forming cavities inside. The mold also includes a cooling mechanism. The cooling mechanism includes a liquid inlet, a serpentine flow channel, a liquid outlet, spiral inner ribs, and baffles. Both the upper and lower molds have serpentine flow channels inside. The front side of each serpentine flow channel has a liquid inlet, and the rear side has a liquid outlet. Spiral inner ribs are fixedly connected to the inner wall of each serpentine flow channel. Evenly distributed baffles are fixedly connected to the interior of each serpentine flow channel. Evenly distributed positioning pins are fixedly connected to the upper surface of the lower mold. Evenly distributed slots are provided on the lower interior side of the upper mold, and the positioning pins are inserted into vertically adjacent slots. This casting mold with a cooling function improves the heat exchange efficiency between the coolant and the mold, thereby improving the cooling efficiency of the workpiece.

Description

Technical Field

[0001] This utility model relates to the field of metal casting technology, specifically a casting mold with a cooling function. Background Technology

[0002] In metal casting production, metal needs to be heated to a molten state, and then the molten metal is filled into the interior of the casting mold. After the molten metal cools inside the forming cavity, it becomes solid, thus realizing the casting of the workpiece. Since the molten metal takes a long time to cool naturally, casting molds with cooling functions are usually used to cool the molten metal and improve the casting efficiency of the workpiece. In the prior art, patent publication number CN212443187U discloses an extrusion casting mold with a cooling function, including a lower mold and an upper mold. The upper mold is disposed above the lower mold, and adjustment components supporting the upper mold are provided on both sides of the top of the lower mold. Two sets of sealing plates are provided on both sides of the lower mold, and liquid injection joints are provided on both sets of sealing plates. A laterally extending cooling channel is provided inside the lower mold, and liquid guiding holes are provided on both outer sides of the cooling channel. Receiving grooves communicating with the liquid guiding holes are provided on both sides of the lower mold. These types of extrusion casting molds with cooling functions have the following disadvantages: When cooling the casting mold, the coolant flows in the cooling pipes to carry away the heat in the mold, thus achieving cooling. However, the straight cooling pipes are prone to forming a "laminar flow" state when transporting coolant, and the fluid velocity near the pipe wall is almost zero, forming a thick thermal boundary layer, which seriously hinders the conduction of heat. Therefore, we propose a casting mold with a cooling function. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a casting mold with a cooling function. Through the cooling mechanism, the coolant cools the mold. At the same time, the serpentine flow channel increases the coverage area of ​​the coolant. The spiral inner ribs and baffles cause turbulence when the coolant flows in the serpentine flow channel, thereby breaking the "laminar flow" state of the coolant. This improves the heat exchange efficiency between the coolant and the mold, and thus improves the cooling efficiency of the workpiece. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a casting mold with a cooling function, including an upper mold, a lower mold provided on the lower side of the upper mold, a forming cavity being provided inside both the upper mold and the lower mold, and a cooling mechanism; Cooling mechanism: It includes a liquid inlet, a serpentine flow channel, a liquid outlet, spiral inner ribs, and baffles. The upper and lower molds are both provided with serpentine flow channels. The front side of the serpentine flow channel is provided with a liquid inlet, and the rear side of the serpentine flow channel is provided with a liquid outlet. Spiral inner ribs are fixedly connected to the inner wall of the serpentine flow channel, and baffles are fixedly connected to the interior of the serpentine flow channel. Through the cooling mechanism, the coolant cools the mold. At the same time, the serpentine flow channel increases the coverage area of ​​the coolant. The spiral inner ribs and baffles cause turbulence when the coolant flows in the serpentine flow channel, thereby breaking the "laminar flow" state of the coolant, thus improving the heat exchange efficiency between the coolant and the mold, and thus improving the cooling efficiency of the workpiece.

[0005] Furthermore, the upper surface of the lower mold is fixedly connected with evenly distributed positioning pins, and the lower side of the interior of the upper mold is provided with evenly distributed slots. The positioning pins are all inserted into vertically adjacent slots to position the upper mold and facilitate the fitting between the upper mold and the lower mold.

[0006] Furthermore, the upper surface of the upper mold is provided with a gate, and the lower side of the gate is provided with a runner. The lower side of the runner is connected to the molding cavity inside the upper mold, which facilitates the entry of molten metal into the molding cavity.

[0007] Furthermore, the lower mold has a sliding connection to a mounting base, and the upper surface of the mounting base is fixedly connected to evenly distributed ejector pins. The ejector pins are all slidably connected to the interior of the lower mold to eject the formed workpiece.

[0008] Furthermore, reset rods are fixedly connected to both the front and rear sides of the upper surface of the mounting base, and evenly distributed sliding grooves are opened inside the lower mold. The reset rods are slidably connected in the vertically adjacent sliding grooves, so that the ejector pins are reset when the upper mold and the lower mold are closed.

[0009] Furthermore, the lower surface of the lower mold is provided with an ejector hole to facilitate the movement of the mounting base.

[0010] Furthermore, the upper surface of the lower mold is provided with overflow grooves, which are all connected to the molding cavity and are used to collect cold molten metal.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This casting mold with cooling function has the following advantages: The cooling mechanism cools the mold with coolant. The serpentine flow channel increases the coverage area of ​​the coolant, and the spiral inner ribs and baffles create turbulence in the coolant as it flows through the serpentine flow channel, thus disrupting the laminar flow state of the coolant. This improves the heat exchange efficiency between the coolant and the mold, thereby increasing the cooling efficiency of the workpiece. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is an enlarged structural diagram of point A in this utility model.

[0013] In the diagram: 1 Upper mold, 2 Lower mold, 3 Gate, 4 Positioning pin, 5 Molding cavity, 6 Mounting base, 7 Reset rod, 8 Cooling mechanism, 81 Liquid inlet, 82 Serpentine runner, 83 Liquid outlet, 84 Spiral inner rib, 85 Baffle, 9 Ejector pin, 10 Ejector hole, 11 Overflow groove. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 This embodiment provides a technical solution: a casting mold with cooling function, including an upper mold 1, a lower mold 2 provided on the lower side of the upper mold 1, a forming cavity 5 opened inside the upper mold 1 and the lower mold 2, and also includes a cooling mechanism 8; Cooling mechanism 8 includes an inlet 81, a serpentine flow channel 82, an outlet 83, spiral inner ribs 84, and baffles 85. Serpentine flow channels 82 are provided inside both the upper mold 1 and the lower mold 2. Inlets 81 are provided on the front side of each serpentine flow channel 82, and outlets 83 are provided on the rear side. Spiral inner ribs 84 are fixedly connected to the inner wall of each serpentine flow channel 82. Evenly distributed baffles 85 are fixedly connected inside each serpentine flow channel 82. An external coolant delivery pipe is connected to the inlet 81, allowing coolant (which can be water) to enter the serpentine flow channel 82. As the coolant flows inside the serpentine flow channel 82, it heats the upper mold 1 and the lower mold 2 respectively. The heat exchange between the molten metal and the upper mold 1 and lower mold 2 is carried out, thereby removing the heat transferred to the interior of the upper mold 1 and lower mold 2 when the molten metal cools and solidifies. The spiral inner rib 84 is a spiral protrusion fixed to the inner wall of the serpentine flow channel 82, which forces the coolant to move along the spiral path when it flows inside the serpentine flow channel 82. This causes the coolant to generate vortices and strong mixing during the flow. At the same time, when the coolant comes into contact with the baffle 85 during the flow, it is forced to change the flow direction and generate strong mixing and disturbance, thereby disrupting the laminar flow state of the coolant and generating turbulence when the coolant flows inside the serpentine flow channel 82. This improves the heat exchange efficiency between the coolant and the upper mold 1 and lower mold 2, thereby improving the cooling effect. The upper surface of the lower mold 2 is fixedly connected with evenly distributed positioning pins 4. The lower side of the interior of the upper mold 1 is provided with evenly distributed slots. The positioning pins 4 are all inserted into the vertically adjacent slots. When using this casting mold with cooling function, the upper mold 1 is placed on the upper side of the lower mold 2, the upper mold 1 is pushed down, and the positioning pins 4 are inserted into the slots so that the lower surface of the upper mold 1 contacts and fits the upper surface of the lower mold 2. The upper surface of the upper mold 1 is provided with a gate 3, and the lower side of the gate 3 is provided with a sprue. The lower side of the sprue is connected to the molding cavity 5 inside the upper mold 1. The upper surface of the lower mold 2 is provided with overflow grooves 11, which are all connected to the molding cavity 5. Molten metal is poured into the interior of the gate 3, so that the molten metal enters the interior of the molding cavity 5 through the sprue. The lower mold 2 has a sliding connection to a mounting base 6. The upper surface of the mounting base 6 is fixedly connected to evenly distributed ejector pins 9, which are all slidably connected to the interior of the lower mold 2. The upper surface of the mounting base 6 is fixedly connected to both the front and rear sides with reset rods 7. The interior of the lower mold 2 has evenly distributed grooves, and the reset rods 7 are all slidably connected to vertically adjacent grooves. The lower surface of the lower mold 2 has an ejection hole 10. When the molten metal cools and forms, the upper mold 1 is pulled upward to separate the upper mold 1 from the lower mold 2. An external ejector rod is inserted into the ejection hole 10, which pushes the mounting base 6 upward, causing the mounting base 6 to move upward and drive the ejector pins 9 to move upward. The upper end of the ejector pins 9 pushes the formed workpiece upward and separates it from the forming cavity 5, thereby removing the formed workpiece. When the upper mold 1 and lower mold 2 are closed again, the lower surface of the upper mold 1 first contacts the upper end of the reset rod 7, which then pushes the reset rod 7 downward, causing the mounting base 6 to move downward and reset.

[0016] The working principle of the casting mold with cooling function provided by this utility model is as follows: When using the casting mold with cooling function, the upper mold 1 is placed on the upper side of the lower mold 2, the upper mold 1 is pushed down, and the positioning pin 4 is inserted into the slot so that the lower surface of the upper mold 1 contacts and fits with the upper surface of the lower mold 2. Molten metal is poured into the interior of the gate 3, so that the molten metal enters the interior of the molding cavity 5 through the gating system. The external coolant delivery pipe is connected to the inlet 81, so that the coolant enters the interior of the serpentine flow channel 82 (the coolant can be water). When the coolant flows inside the serpentine flow channel 82, it exchanges heat with the upper mold 1 and the lower mold 2 respectively, thereby carrying away the heat transferred to the interior of the upper mold 1 and the lower mold 2 when the molten metal cools and solidifies. The spiral inner rib 84 is a spiral protrusion fixed on the inner wall of the serpentine flow channel 82, so that the coolant is forced to move along the spiral path when flowing inside the serpentine flow channel 82, thereby making the coolant flow more efficient. During the process, vortices and intense mixing are generated. At the same time, when the coolant comes into contact with the baffle 85 during its flow, the coolant is forced to change its flow direction, generating intense mixing and disturbance, which in turn disrupts the laminar flow state of the coolant. This causes the coolant to generate turbulence when flowing inside the serpentine channel 82, thereby improving the heat exchange efficiency between the coolant and the upper mold 1 and the lower mold 2, and thus improving the cooling effect. After the molten metal is cooled and formed, the upper mold 1 is pulled upward to separate the upper mold 1 from the lower mold 2. The external ejector rod is inserted into the ejector hole 10, which pushes the mounting seat 6 upward, causing the mounting seat 6 to move upward and drive the ejector pin 9 to move upward. The upper end of the ejector pin 9 pushes the formed workpiece upward and separates it from the forming cavity 5, thereby removing the formed workpiece. When the next mold closing operation of the upper mold 1 and the lower mold 2 is performed, the lower surface of the upper mold 1 first contacts the upper end of the reset rod 7, which then pushes the reset rod 7 downward, causing the mounting seat 6 to move downward and reset.

[0017] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A casting mold with cooling function, comprising an upper mold (1), the lower side of the upper mold (1) is provided with a lower mold (2), the inside of the upper mold (1) and the lower mold (2) are both provided with a forming cavity (5), characterized in that: It also includes a cooling mechanism (8); Cooling mechanism (8): It includes a liquid inlet (81), a serpentine flow channel (82), a liquid outlet (83), a spiral inner rib (84), and a baffle (85). The upper mold (1) and the lower mold (2) are both provided with serpentine flow channels (82). The front side of the serpentine flow channel (82) is provided with a liquid inlet (81), and the rear side of the serpentine flow channel (82) is provided with a liquid outlet (83). The inner wall of the serpentine flow channel (82) is fixedly connected with spiral inner ribs (84), and the interior of the serpentine flow channel (82) is fixedly connected with baffles (85) that are evenly distributed.

2. The casting mold with a cooling function according to claim 1, characterized in that: The upper surface of the lower mold (2) is fixedly connected with evenly distributed positioning pins (4), and the lower side of the interior of the upper mold (1) is provided with evenly distributed slots, and the positioning pins (4) are all inserted into the vertically adjacent slots.

3. The casting mold with a cooling function according to claim 1, characterized in that: The upper surface of the upper mold (1) is provided with a gate (3), and the lower side of the gate (3) is provided with a sprue. The lower side of the sprue is connected to the molding cavity (5) inside the upper mold (1).

4. The casting mold with a cooling function according to claim 1, characterized in that: The lower mold (2) has a sliding connection to a mounting base (6), and the upper surface of the mounting base (6) is fixedly connected to uniformly distributed ejector pins (9), all of which are slidably connected to the interior of the lower mold (2).

5. The casting mold with a cooling function according to claim 4, characterized in that: The upper surface of the mounting base (6) is fixedly connected to the front and rear sides with reset rods (7), and the interior of the lower mold (2) is provided with evenly distributed sliding grooves. The reset rods (7) are all slidably connected in the vertically adjacent sliding grooves.

6. The casting mold with a cooling function according to claim 1, characterized in that: The lower surface of the lower mold (2) is provided with an ejector hole (10).

7. A casting mold with cooling function according to claim 1, characterized in that: The upper surface of the lower mold (2) is provided with overflow grooves (11), and the overflow grooves (11) are all connected to the molding cavity (5).

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