Point cooling device and casting mold

Abstract

The utility model discloses a point cooling device and discloses a casting mold with the point cooling device, and the point cooling device comprises a point cooling pipe which is used for circularly conveying cooling water to a point cooling cavity of the casting mold, and one end of the point cooling pipe is provided with a positioning pipe part and an abutting ring which is coaxially arranged with the positioning pipe part; the locking nut is arranged on the radial outer surface of the point cooling pipe in a sleeving mode and can move in the axis direction of the point cooling pipe, the locking nut is coaxially provided with an anti-disengagement ring, the anti-disengagement ring is located on the side, away from the positioning pipe part, of the abutting ring, and the end face of the anti-disengagement ring abuts against the end face of the abutting ring; the connecting column is fixedly arranged on the casting mold, the radial outer surface of the connecting column is provided with an external thread screwed with the locking nut, a positioning hole is formed in the connecting column, the positioning hole and the outer surface of the positioning pipe are positioned in a matched mode, and the positioning hole is communicated with the point cooling cavity. According to the utility model, the problem of water leakage caused by poor thread screwing of the point cooling pipe and the connecting column in the casting mold can be avoided, so that the point cooling pipe is suitable for a scene in which the point cooling pipe is frequently disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of casting molds, in particular to a spot cooling device and a casting mold. Background Art

[0002] In low-pressure casting production, the temperature of the mold is an important factor affecting the quality of product molding. For some relatively precise and high-quality products, spot cooling tubes are usually configured in the mold to cool local areas of the mold to control the temperature of the mold in this area and ensure that the product meets quality requirements.

[0003] In the related art, a cooling water joint for a mold is provided, with patent number CN203542916U. A joint body is provided on the mold, a cold water cavity is provided inside the joint body, a water inlet and a water outlet are provided on the periphery of the joint body, and a spot cooling pipe is provided with an external thread, the spot cooling pipe is inserted into the cold water cavity, and the cold water cavity is provided with an internal thread connected to the external thread, so that the spot cooling pipe is fixed in the cold water cavity, and the cold water pipe is connected to the water inlet. Therefore, the cooling water enters the cold water cavity through the water inlet and the cold water pipe, and is then discharged from the water outlet, so that the cold water circulates to cool the mold locally.

[0004] During long-term use, scale will remain in the cooling chamber. The cold water chamber must be cleaned regularly to prevent scale from affecting the temperature control of the spot cooling pipe. However, the spot cooling pipe needs to be frequently disassembled and assembled, which may cause the threads of the spot cooling pipe and the cold water chamber to not fit well together, that is, the threads cannot be tightened, resulting in water leakage. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a spot cooling device that can avoid water leakage caused by poor thread engagement between the spot cooling tube and the connecting column in the casting mold, making the spot cooling tube suitable for frequent disassembly.

[0006] The utility model also provides a casting mold with the above-mentioned spot cooling device.

[0007] According to the first aspect of the present invention, a spot cooling device is provided. It includes: a spot cooling tube for circulating cooling water to the spot cooling cavity of the casting mold, one end of the spot cooling tube has a positioning tube portion and an abutment ring coaxially arranged with the positioning tube portion; a locking nut, which is sleeved on the radial outer surface of the spot cooling tube and can move along the axial direction of the spot cooling tube, and the locking nut is coaxially provided with an anti-slip ring, the anti-slip ring is located on the side of the abutment ring away from the positioning tube portion, and the end face of the anti-slip ring abuts with the end face of the abutment ring to prevent the locking nut from detaching from the spot cooling tube; a connecting column, which is fixedly arranged on the casting mold, the radial outer surface of the connecting column has an external thread screwed with the locking nut, and a positioning hole is formed inside the connecting column, the positioning hole cooperates with the outer surface of the positioning tube for positioning, and the positioning hole is connected to the spot cooling cavity.

[0008] According to a spot cooling device of the first aspect embodiment of the present invention, a cold water channel and a return channel are formed inside the spot cooling tube, a junction is formed between the cold water channel and the return channel, and the junction is arranged close to the positioning tube portion.

[0009] According to a spot cooling device of the first embodiment of the present invention, a cold water pipe is coaxially arranged inside the spot cooling pipe, a cold water channel is formed inside the cold water pipe, and a reflux channel is formed between the outer side of the cold water pipe and the inner side of the spot cooling pipe.

[0010] According to a spot cooling device of the first aspect embodiment of the present utility model, a water inlet and a water outlet are provided on the periphery of the spot cooling tube, the water inlet and the water outlet are distributed up and down, the water inlet is connected to the cold water channel, and the water outlet is connected to the reflux channel.

[0011] According to a spot cooling device of an embodiment of the first aspect of the present invention, the spot cooling tube has a hexagonal column portion, and the water inlet and the water outlet are arranged on a side surface of the hexagonal column portion.

[0012] According to a spot cooling device of an embodiment of the first aspect of the present invention, the spot cooling tube has an arcuate portion, the arcuate portion is connected to the positioning tube portion and gradually shrinks in a direction away from the positioning tube portion.

[0013] According to a spot cooling device of an embodiment of the first aspect of the present utility model, the positioning hole has a chamfered surface, and the chamfered surface is used to guide the positioning tube portion to be inserted into the positioning hole.

[0014] A casting mold according to an embodiment of the second aspect of the present invention includes a spot cooling device as described in any one of the above.

[0015] A spot cooling device and a casting mold according to an embodiment of the present invention have at least the following beneficial effects:

[0016] 1. The utility model provides a positioning tube portion, and the spot cooling tube can be inserted into the positioning hole through the positioning tube portion, so that the positioning tube portion and the positioning hole are positioned together. Therefore, the spot cooling tube is not easy to deflect during installation, so that the locking nut can be directionally locked, ensuring that the locking nut can be correctly threaded with the connecting column, thereby avoiding the problem of water leakage caused by poor screwing of the spot cooling tube and the connecting column in the casting mold, and further, making the spot cooling tube suitable for scenes where it is frequently disassembled.

[0017] 2. The utility model provides an abutment ring, so that the locking nut can move in the axial direction of the spot cooling tube, and the locking nut can be threadedly connected to the connecting column. Moreover, the end faces of the abutment ring and the anti-slip ring abut each other, so that the spot cooling tube is fixed on the connecting column, and thus the spot cooling tube is fixed on the casting mold, and can circulate cooling water to the spot cooling cavity of the casting mold to control the local temperature of the mold. Furthermore, when cleaning the scale inside the spot cooling cavity, the locking nut can be loosened to separate the spot cooling tube from the connecting column. Since the end faces of the abutment ring and the anti-slip ring abut each other, the locking nut can be prevented from separating from the spot cooling tube. After the spot cooling tube is removed, there is no need to manage the locking nut separately, which makes parts management more convenient.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions of the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic structural diagram of a spot cooling device according to an embodiment of the present utility model;

[0021] Figure 2 for Figure 1 A schematic cross-sectional structure diagram of a spot cooling device is shown;

[0022] Figure 3 This is a schematic structural diagram of a spot cooling device and a casting mold according to an embodiment of the present invention;

[0023] Figure 4 for Figure 1 A schematic diagram of the partial structure of a spot cooling device and a casting mold is shown.

[0024] Figure markings: 100-point cooling pipe, 110-positioning pipe part, 120-abutment ring, 130-locking nut, 140-anti-slip ring, 150-connecting column, 160-positioning hole, 170-cold water channel, 180-return channel, 190-intersection channel, 200-cold water pipe, 210-water inlet, 220-water outlet, 230-hexagonal prism part, 240-arc-shaped part, 250-chamfered surface. DETAILED DESCRIPTION

[0025] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of this utility model, "several" means one or more, "more" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. If a first or second is mentioned, this is solely for the purpose of distinguishing the technical features and is not to be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0028] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "mounted, connected, and connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] A spot cooling device and a casting mold according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0030] Reference Figure 1 , the utility model aims to provide an embodiment of a spot cooling device and a casting mold.

[0031] In this embodiment, referring to Figure 3 A casting mold mainly includes a mold body and a spot cooling device.

[0032] Reference Figure 2 and Figure 4 The locking nut 130 is sleeved on the radial outer surface of the spot cooling tube 100 and can move along the axial direction of the spot cooling tube 100 . The locking nut 130 is coaxially provided with an anti-slip ring 140 . The anti-slip ring 140 is located on the side of the abutment ring 120 away from the positioning tube portion 110 . The end surface of the anti-slip ring 140 abuts against the end surface of the abutment ring 120 to prevent the locking nut 130 from separating from the spot cooling tube 100 . The connecting column 150 is fixedly arranged on the casting mold. The radial outer surface of the connecting column 150 has an external thread that is screwed with the locking nut 130 . The interior of the connecting column 150 is formed with a positioning hole 160 . The positioning hole 160 cooperates with the outer surface of the positioning tube for positioning, and the positioning hole 160 is connected to the spot cooling chamber.

[0033] Therefore, the spot cooling tube 100 can be inserted into the positioning hole 160 through the positioning tube portion 110, so that the positioning tube portion 110 and the positioning hole 160 are positioned together. Therefore, the spot cooling tube 100 is not easy to deviate during installation, so that the locking nut 130 can be directionally locked, ensuring that the locking nut 130 can be correctly threadedly connected to the connecting column 150, thereby avoiding the problem of water leakage caused by poor thread engagement between the spot cooling tube 100 and the connecting column 150 in the casting mold, and further, making the spot cooling tube 100 suitable for scenarios where it is frequently disassembled.

[0034] In addition, the locking nut 130 can move in the axial direction of the spot cooling tube 100, and the locking nut 130 can be threadedly connected to the connecting column 150. In addition, the end faces of the abutment ring 120 and the anti-slip ring 140 abut each other, so that the spot cooling tube 100 is fixed on the connecting column 150, which also makes the spot cooling tube 100 fixed on the casting mold, and can circulate cooling water to the spot cooling cavity of the casting mold to control the local temperature of the mold. Furthermore, when cleaning the scale inside the spot cooling cavity, the locking nut 130 can be loosened to separate the spot cooling tube 100 from the connecting column 150. Since the end faces of the abutment ring 120 and the anti-slip ring 140 abut each other, the locking nut 130 can be prevented from detaching from the spot cooling tube 100. After the spot cooling tube 100 is removed, there is no need to manage the locking nut 130 separately, which makes parts management more convenient.

[0035] In some embodiments of the present invention, a cold water channel 170 and a return channel 180 are formed inside the spot cooling tube 100, and an intersection channel 190 is formed between the cold water channel 170 and the return channel 180. The intersection channel 190 is arranged close to the positioning tube portion 110, so that the intersection channel 190 is closer to the spot cooling cavity of the mold, which is more conducive to controlling the local temperature of the mold.

[0036] In some embodiments of the present invention, a cold water pipe 200 is coaxially arranged inside the spot cooling pipe 100 , a cold water channel 170 is formed inside the cold water pipe 200 , and a reflux channel 180 is formed between the outer side of the cold water pipe 200 and the inner side of the spot cooling pipe 100 .

[0037] It is understandable that the cold water pipe 200 can be produced separately and then installed inside the spot cooling pipe 100, thereby making the cold water channel 170 and the return channel 180 more convenient to manufacture and reducing the difficulty of machining the spot cooling pipe 100.

[0038] In some embodiments of the present invention, a water inlet 210 and a water outlet 220 are provided on the periphery of the spot cooling tube 100. The water inlet 210 and the water outlet 220 are distributed up and down. The water inlet 210 is connected to the cold water channel 170, and the water outlet 220 is connected to the reflux channel 180.

[0039] Therefore, the external water inlet pipe is connected to the water inlet 210, and the cooling water can enter the cooling chamber through the water inlet 210 and the cold water channel 170. Then, the cooling water in the cooling chamber is discharged through the reflux channel 180, the water outlet 220 and the external water outlet pipe, thereby realizing water circulation.

[0040] In some embodiments of the present invention, referring to Figure 1 The spot cooling tube 100 has a hexagonal column portion 230 , and the water inlet 210 and the water outlet 220 are disposed on one side of the hexagonal column portion 230 .

[0041] Therefore, when the water inlet 210 and the water outlet 220 are connected to the external water inlet pipe and the water outlet pipe respectively, it is more secure to hold the hexagonal prism part 230 with tools, which facilitates the installation of the cold water pipe 200. In addition, it is easier to process the water inlet 210 and the water outlet 220 on one side of the hexagonal prism part 230.

[0042] In some embodiments of the present invention, referring to Figure 2 The spot cooling tube 100 has an arcuate portion 240 , which is connected to the positioning tube portion 110 and gradually shrinks in a direction away from the positioning tube portion 110 , thereby facilitating the positioning tube portion 110 to be inserted into the positioning hole 160 .

[0043] In some embodiments of the present invention, the positioning hole 160 has a chamfered surface 250 , and the chamfered surface 250 is used to guide the positioning tube 110 to be inserted into the positioning hole 160 , thereby further facilitating the insertion of the positioning tube 110 into the positioning hole 160 .

[0044] Throughout this specification, references to terms such as "one embodiment, some embodiments, exemplary embodiments, examples, specific examples, or some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0045] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A spot cooling device, characterized in that: include: A spot cooling pipe (100) is used for circulating cooling water to the spot cooling cavity of the casting mold, wherein one end of the spot cooling pipe (100) comprises a positioning pipe portion (110) and an abutting ring (120) coaxially arranged with the positioning pipe portion (110); A locking nut (130) is sleeved on the radial outer surface of the spot cooling tube (100) and can move along the axial direction of the spot cooling tube (100); the locking nut (130) is coaxially provided with an anti-slip ring (140); the anti-slip ring (140) is located on the side of the abutting ring (120) away from the positioning tube portion (110); the end face of the anti-slip ring (140) abuts against the end face of the abutting ring (120) to prevent the locking nut (130) from being separated from the spot cooling tube (100); A connecting column (150) is fixedly arranged on the casting mold, wherein the radial outer surface of the connecting column (150) has an external thread that is screwed with the locking nut (130), and a positioning hole (160) is formed inside the connecting column (150). The positioning hole (160) cooperates with the outer surface of the positioning tube for positioning, and the positioning hole (160) is connected to the spot cooling cavity.

2. A spot cooling device according to claim 1, characterized in that: A cold water channel (170) and a return channel (180) are formed inside the spot cooling tube (100), a junction channel (190) is formed between the cold water channel (170) and the return channel (180), and the junction channel (190) is arranged close to the positioning tube portion (110).

3. A spot cooling device according to claim 2, characterized in that: A cold water pipe (200) is coaxially arranged inside the spot cooling pipe (100), the cold water channel (170) is formed inside the cold water pipe (200), and the reflux channel (180) is formed between the outer side of the cold water pipe (200) and the inner side of the spot cooling pipe (100).

4. A spot cooling device according to claim 2, characterized in that: A water inlet (210) and a water outlet (220) are provided on the outer periphery of the spot cooling tube (100), the water inlet (210) and the water outlet (220) being distributed vertically, the water inlet (210) being in communication with the cold water channel (170), and the water outlet (220) being in communication with the reflux channel (180).

5. A spot cooling device according to claim 4, characterized in that: The spot cooling tube (100) has a hexagonal column portion (230), and the water inlet (210) and the water outlet (220) are arranged on a side surface of the hexagonal column portion (230).

6. A spot cooling device according to claim 1, characterized in that: The spot cooling tube (100) has an arc-shaped portion (240), the arc-shaped portion (240) is connected to the positioning tube portion (110) and gradually shrinks in a direction away from the positioning tube portion (110).

7. A spot cooling device according to claim 1, characterized in that: The positioning hole (160) has a chamfered surface (250), and the chamfered surface (250) is used to guide the positioning tube portion (110) to be inserted into the positioning hole (160).

8. A casting mold, characterized in that: A spot cooling device comprising any one of claims 1 to 7.

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