An integrated cooling pin

Abstract

This utility model discloses an integrated cooling insert, belonging to the field of inserts, comprising an insert body and a flow guide. The insert body has an open-ended receiving cavity, a first water passage hole, and a second water passage hole. The flow guide includes a flow guide tube and a plug connected together. The plug is detachably connected to the open end of the receiving cavity. The flow guide tube is located within the receiving cavity and has a flow channel. The flow guide tube has a first flow guide hole and a second flow guide hole, and an annular protrusion located between the first and second water passage holes. In this embodiment, the overall number of parts is reduced, minimizing the fit of the insert connecting parts. The connections between the parts in the insert are less prone to loosening and leakage, resulting in a stable insert connection. This improves the continuous production efficiency of the mold and reduces production costs.

Description

Technical Field

[0001] This utility model relates to the field of pin setting technology, and in particular to an integrated cooling pin setting. Background Technology

[0002] In some existing cold insert structures, the two ends of the connecting tube are threaded to the insert body and the base respectively, the first connector and the second connector are threaded to the base, the cooling pipe is threaded to the base, and the first connector and the second connector are connected to the cooling pipe. This structure has many parts and the installation and fitting tolerance requirements are very high, which makes the processing requirements higher and the processing cost higher. The large number of parts can also lead to loosening and leakage at the connection, affecting the continuity of mold production. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes an integrated cooling insert.

[0004] An integrated cooling insert according to an embodiment of the present invention includes: The needle body has an open-ended receiving cavity, and a first water passage hole and a second water passage hole communicating with the receiving cavity are provided on the needle body. The first water passage hole and the second water passage hole are spaced apart along the axial direction of the needle body. A flow guide includes a flow guide tube and a plug connected together. The plug is detachably connected to the open end of the accommodating cavity. The flow guide tube is located inside the accommodating cavity and has a flow guide channel. A first flow guide hole communicating with the flow guide channel is provided at the end of the flow guide tube away from the plug. A second flow guide hole communicating with the flow guide channel is provided on the outer wall of the flow guide tube. An annular protrusion is provided on the flow guide tube, and the annular protrusion is located between the first water passage hole and the second water passage hole, and between the first flow guide hole and the second flow guide hole.

[0005] An integrated cooling insert according to an embodiment of the present invention has at least the following beneficial effects: This application eliminates the original base and connecting pipe, and directly opens the first water passage hole and the second water passage hole on the insert body. The annular protrusion can separate the first water passage hole and the second water passage hole. The coolant flows in from the first water passage hole, flows along the gap between the guide pipe and the inner wall of the insert body to the first guide hole, passes through the guide channel, flows out from the second guide hole, and then flows out from the first water passage hole. The overall number of parts is reduced, the fitting of the insert connecting parts is reduced, the connection of each part in the insert is not easy to loosen and leak water, the insert connection is stable, which can improve the continuous production efficiency of the mold and reduce the production cost.

[0006] According to some embodiments of the present invention, the insert body includes a cooling part and a connecting part connected to each other. The cooling part and the connecting part are respectively located at both ends of the insert body along the axial direction of the insert body. The cooling part is used to cool the product mold core. The first water passage hole and the second water passage hole are provided on the connecting part. The plug is detachably connected to the connecting part.

[0007] According to some embodiments of the present invention, the cross-sectional area of ​​the connecting portion is larger than the cross-sectional area of ​​the cooling portion.

[0008] According to some embodiments of the present invention, it further includes a first connector and a second connector, wherein the first connector is detachably connected to the first water passage hole, and the second connector is detachably connected to the second water passage hole.

[0009] According to some embodiments of the present invention, the first connector is provided with a first external thread, the inner wall of the first water passage hole is provided with a first internal thread, the first external thread is adapted to and connected with the first internal thread, the second connector is provided with a second external thread, the inner wall of the second water passage hole is provided with a second internal thread, and the second external thread is adapted to and connected with the second internal thread.

[0010] According to some embodiments of the present invention, the open end of the accommodating cavity is provided with a third internal thread, and the plug is provided with a third external thread, wherein the third internal thread and the third external thread are adapted to be connected.

[0011] According to some embodiments of the present invention, the length of the guide tube is less than the depth of the accommodating cavity, and one end of the guide tube is disposed close to the bottom wall of the accommodating cavity.

[0012] According to some embodiments of the present invention, the bottom wall of the accommodating cavity is arc-shaped.

[0013] According to some embodiments of the present invention, the plug is provided with an operating groove for a wrench to be inserted into, and the plug extends into the receiving cavity.

[0014] According to some embodiments of the present invention, the second water passage hole and the second flow guide hole are respectively provided.

[0015] According to some embodiments of this utility model, the working process of the integrated cooling pin includes the following steps: Step 1: First, insert the guide component into the receiving cavity from the bottom of the insert body, and then thread the plug onto the insert body. The insert body is made of heat-treated SKD61 material, which undergoes surface nitriding. SKD61 material has good hardness and wear resistance, and surface nitriding extends the mold's lifespan. The guide tube is made of brass, offering a good balance of strength and toughness, extending its service life. It is machined using high-precision lathes, CNC machine tools, and EDM to ensure part accuracy and smooth assembly of all components.

[0016] Step 2: The insert body, guide piece, first connector, and second connector are assembled into a single unit using screw threads. Nitrogen gas is then applied to test for leaks. If leaks are found, the screw threads need to be tightened further.

[0017] Step 3: Refer to Figure 2 The integrated cooling insert passes through the cavity hole of the mold blank and is directly installed on the mold core.

[0018] Step 4: Connect the first and second connectors to the cooling machine pipeline. After the die-casting mold injection is completed, the die-casting mold ejects the product. The die-cast product is removed by an ABB robot. The cooling machine starts to supply cooling water to cool the insert, and the next die-casting production cycle begins.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the integrated cooling pin according to an embodiment of the present invention; Figure 2 This is a schematic diagram illustrating the application of the integrated cooling pin according to an embodiment of the present invention; Figure 3 This is a pin-mounted structure based on existing technology.

[0021] Icon labels: 100. Pin body; 110. Receiving cavity; 120. First water passage hole; 130. Second water passage hole; 140. Cooling section; 150. Connecting section; 200. Flow guide; 210. Flow guide pipe; 211. Flow guide channel; 212. First flow guide hole; 213. Second flow guide hole; 214. Annular protrusion; 220. Plug; 221. Operating groove; 300. First connector; 400, Second Connector; 510. Connecting pipe; 520. Cooling pipe; 530. Base; 610. Mold core; 620. Mold blank. Detailed Implementation

[0022] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0023] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," 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 this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The existing structure with cold-set pins is shown in the attached figure. Figure 3 As shown, the two ends of the connecting pipe 510 are threaded to the insert body 100 and the base 530 respectively. The first connector 300 and the second connector 400 are threaded to the base 530. The cooling pipe 520 is threaded to the base 530. This structure has many parts and the installation and fitting tolerance requirements are very high. The processing requirements are also higher, which makes the processing cost higher. The large number of parts can also cause the connection to loosen and leak water, affecting the continuity of mold production.

[0026] Please see Figure 1An embodiment of the present invention provides an integrated cooling insert, comprising an insert body 100 and a flow guide 200. The insert body 100 has a receiving cavity 110, the bottom of which is open. The insert body 100 has a first water passage 120 and a second water passage 130, which communicate with the receiving cavity 110. The first water passage 120 and the second water passage 130 are spaced apart along the axial direction of the insert body 100.

[0027] The flow guide 200 includes a flow guide pipe 210 and a plug 220 connected together. The plug 220 is detachably connected to the open end of the receiving cavity 110, and the flow guide pipe 210 is located inside the receiving cavity 110. A flow guide channel 211 is provided inside the flow guide pipe 210. A first flow guide hole 212 is provided at the end of the flow guide pipe 210 away from the plug 220, and a second flow guide hole 213 is provided on the outer wall of the flow guide pipe 210. The first flow guide hole 212 and the second flow guide hole 213 communicate with the flow guide channel 211. An annular protrusion 214 is provided on the flow guide pipe 210. The annular protrusion 214 is located between the first water passage hole 120 and the second water passage hole 130, and between the first flow guide hole 212 and the second flow guide hole 213.

[0028] This application eliminates the original base 530 and connecting pipe 510, and directly opens the first water passage hole 120 and the second water passage hole 130 on the insert body 100. The annular protrusion 214 can separate the first water passage hole 120 and the second water passage hole 130. Coolant flows in from the first water passage hole 120, flows along the gap between the guide pipe 210 and the inner wall of the insert body 100 to the first guide hole 212, passes through the guide channel 211, flows out from the second guide hole 213, and then flows out from the first water passage hole 120. The overall number of parts is reduced, the fitting of insert connecting parts is reduced, the connection of each part in the insert is not easy to loosen and leak water, the insert connection is stable, which can improve the continuous production efficiency of the mold and reduce the production cost.

[0029] In some embodiments, see Figure 1 The insert body 100 includes a cooling section 140 and a connecting section 150 connected to each other. The cooling section 140 and the connecting section 150 are located at opposite ends of the insert body 100 along its axial direction. The cooling section 140 is used to cool the mold core 610 product. A first water passage 120 and a second water passage 130 are provided on the connecting section 150. The plug 220 is detachably connected to the connecting section 150. The connecting section 150 corresponds to the existing insert base 530. The cooling section 140 and the connecting section 150 are integrally formed, resulting in fewer overall parts and reducing the fit of insert connecting parts. The connections between the parts in the insert are less prone to loosening and leakage, and the insert connection is stable, which can improve the continuous production efficiency of the mold and reduce production costs.

[0030] In some embodiments, see Figure 1 The cross-sectional area of ​​the connecting part 150 is larger than that of the cooling part 140. The larger cross-sectional area of ​​the connecting part 150 makes the overall structure of the connecting part 150 more stable, which makes it easier to machine the first water passage hole 120 and the second water passage hole 130 on the connecting part 150. When machining threads at the opening of the first water passage hole 120, the second water passage hole 130 and the accommodating cavity 110, the connecting part 150 is less likely to be damaged.

[0031] In some embodiments, see Figure 1 The integrated cooling insert also includes a first connector 300 and a second connector 400. The first connector 300 is detachably connected to the first water inlet 120, and the second connector 400 is detachably connected to the second water inlet 130. The first connector 300 and the second connector 400 are used to connect to the chiller piping, and coolant is introduced into the insert body 100 through the first connector 300 and the second connector 400.

[0032] In some embodiments, see Figure 1 The first connector 300 has a first external thread, and the inner wall of the first water passage 120 has a first internal thread. The first external thread and the first internal thread are adapted to each other. The second connector 400 has a second external thread, and the inner wall of the second water passage 130 has a second internal thread. The second external thread and the second internal thread are adapted to each other. The first connector 300 is threadedly connected to the pin body 100, making it easy to assemble and disassemble the first connector 300 and the pin body 100. The second connector 400 is threadedly connected to the pin body 100, making it easy to assemble and disassemble the second connector 400 and the pin body 100.

[0033] In some embodiments, see Figure 1 The open end of the receiving cavity 110 is provided with a third internal thread, and the plug 220 is provided with a third external thread. The third internal thread and the third external thread are adapted to be connected. The plug 220 is threadedly connected to the insert body 100, making it easy to assemble and disassemble the plug 220 and the insert body 100.

[0034] In some embodiments, see Figure 1 The length of the guide tube 210 is less than the depth of the receiving cavity 110, and one end of the guide tube 210 is positioned close to the bottom wall of the receiving cavity 110. The first guide hole 212 faces the bottom wall of the receiving cavity 110, and the placement of one end of the guide tube 210 close to the bottom wall of the receiving cavity 110 makes the flow channel inside the insert body 100 longer, ensuring that the coolant can flow evenly to all parts of the inner wall of the receiving cavity 110, thus ensuring the cooling effect.

[0035] In some embodiments, see Figure 1 The bottom wall of the accommodating cavity 110 is arc-shaped, which is convenient to process and can reduce the impact of coolant on the bottom wall of the accommodating cavity 110.

[0036] In some embodiments, see Figure 1 The plug 220 is provided with an operating groove 221, which allows a wrench to be inserted, making it easy to install and remove the plug 220. The plug 220 extends into the receiving cavity 110, making the overall structure of the insert more compact.

[0037] In some embodiments, see Figure 1 The second water passage 130 is set to correspond with the second guide hole 213.

[0038] The working principle of the integrated cooling pin in this application embodiment: Step 1: First, insert the guide component 200 into the receiving cavity 110 from the bottom of the insert body 100, and then thread the plug 220 onto the insert body 100. The insert body 100 is made of heat-treated SKD61 material and has undergone surface nitriding. Heat-treated SKD61 material has good hardness and wear resistance, and surface nitriding can extend the mold life. The guide tube 210 is made of brass material, which has a good balance of strength and toughness, extending its service life. It is machined using high-precision lathes, CNC machine tools, and EDM to ensure the accuracy of the parts and smooth installation and fit of each part.

[0039] Step 2: The insert body 100, the guide 200, the first connector 300, and the second connector 400 are assembled into a whole by fixing them together with threads. Connect nitrogen gas to test for leaks. If there are leaks, tighten the threads more forcefully.

[0040] Step 3: Refer to Figure 2 The integrated cooling insert passes through the clearance hole of the mold blank 620 and is directly installed on the mold core 610.

[0041] Step 4: Connect the first connector 300 and the second connector 400 to the cooling machine pipeline. After the die-casting mold injection is completed, the die-casting mold ejects the product. The die-cast product is removed by the ABB robot. The cooling machine starts to deliver cooling water to cool the insert, and the next die-casting production cycle begins.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An integrated cooling insert, characterized by include: The needle body has an open-ended receiving cavity, and a first water passage hole and a second water passage hole communicating with the receiving cavity are provided on the needle body. The first water passage hole and the second water passage hole are spaced apart along the axial direction of the needle body. A flow guide includes a flow guide tube and a plug connected together. The plug is detachably connected to the open end of the accommodating cavity. The flow guide tube is located inside the accommodating cavity and has a flow guide channel. A first flow guide hole communicating with the flow guide channel is provided at the end of the flow guide tube away from the plug. A second flow guide hole communicating with the flow guide channel is provided on the outer wall of the flow guide tube. An annular protrusion is provided on the flow guide tube, and the annular protrusion is located between the first water passage hole and the second water passage hole, and between the first flow guide hole and the second flow guide hole.

2. An integrated cooling insert according to claim 1, characterized in that The insert body includes a cooling section and a connecting section connected to each other. The cooling section and the connecting section are located at both ends of the insert body along the axial direction of the insert body. The cooling section is used to cool the product. The first water passage hole and the second water passage hole are provided on the connecting section. The plug is detachably connected to the connecting section.

3. An integrated cooling insert according to claim 2, wherein The cross-sectional area of ​​the connecting part is larger than the cross-sectional area of ​​the cooling part.

4. The one-piece cooling insert of claim 1, wherein, It also includes a first connector and a second connector, wherein the first connector is detachably connected to the first water inlet and the second connector is detachably connected to the second water inlet.

5. An integrated cooling insert according to claim 4, characterized in that The first connector is provided with a first external thread, and the inner wall of the first water passage hole is provided with a first internal thread. The first external thread is adapted to and connected with the first internal thread. The second connector is provided with a second external thread, and the inner wall of the second water passage hole is provided with a second internal thread. The second external thread is adapted to and connected with the second internal thread.

6. An integrated cooling insert according to claim 1, wherein The open end of the accommodating cavity is provided with a third internal thread, and the plug is provided with a third external thread. The third internal thread and the third external thread are adapted to be connected.

7. An integrated cooling insert according to claim 1, wherein The length of the guide tube is less than the depth of the accommodating cavity, and one end of the guide tube is located close to the bottom wall of the accommodating cavity.

8. The one-piece cooling insert of claim 1, wherein, The bottom wall of the accommodating cavity is arc-shaped.

9. The one-piece cooling insert of claim 1, wherein, The plug is provided with an operating groove for a wrench to be inserted into, and the plug extends into the receiving cavity.

10. The one-piece cooling insert of claim 1, wherein, The second water passage hole is provided in correspondence with the second flow guide hole.

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