Small insert center point cooling structure

Abstract

The utility model relates to the technical field of die-casting dies, in particular to a small insert center point cooling structure which at least solves the problem that cooling structures cannot be arranged on part of small inserts. The insert structurally comprises an insert body provided with a cooling cavity, and a first internal thread is arranged at the open end of the cooling cavity; the threaded end of the bolt is in threaded connection with the first internal thread, the bolt is provided with a water passing hole, the water passing hole penetrates through the whole bolt, and a second internal thread is arranged in the direction, close to the large end, of the water passing hole; the water inlet component is provided with an end, the end is provided with a sleeve extending outwards, the side portion of the end is provided with a first water inlet communicated to the sleeve, an inner pipe is arranged in the sleeve, the end is provided with a second water inlet communicated with the inner pipe, and the end, away from the end, of the sleeve is provided with an external thread; the end, away from the end, of the inner pipe is inserted into the water passing hole and extends to the bottom end of the cooling cavity, and the external thread is in threaded connection with the second internal thread.

Description

Technical Field

[0001] The utility model relates to the technical field of die casting moulds, in particular to a central point cooling structure for a small insert. Background Art

[0002] At present, due to the influence of the structure of die-casting products, it is more difficult to adjust the die-casting process, which is easy to cause batch defects such as mold sticking, overflow and shrinkage during the production process, causing immeasurable losses to the company.

[0003] Therefore, it is necessary to reduce the temperature during the casting process to solve the defects of the die-casting product such as overflow, shrinkage, and post-processing pores in the thick and large parts. However, the structure of the insert is small, and the width and thickness of some inserts are even around 30-40mm. In this case, it is impossible to set up a conventional cooling structure for cooling.

[0004] At the same time, when considering the setting of the cooling structure, it is also necessary to consider the fragility of the die-casting mold cavity, especially in the narrow space. It is necessary to consider the convenience of maintenance in the limited space and the convenience of replacing the insert when it is abnormal. Utility Model Content

[0005] The purpose of the utility model is to propose a center point cooling structure for small inserts, which at least solves the problem that some small inserts cannot be cooled by conventional cooling structures.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A center point cooling structure for a small insert comprises an insert body, wherein the end surface of the bottom end of the insert body is provided with a cooling chamber extending toward the top end, and the opening end of the cooling chamber is provided with a first internal thread; further comprising a bolt, the threaded end of the bolt is threadedly connected with the first internal thread, the bolt is provided with a water hole extending from the large end toward the threaded end, the water hole runs through the entire bolt, and the end of the water hole close to the large end is provided with a second internal thread; further comprising a water inlet component, the water inlet component is provided with an end head, and one end of the end head is provided with a thread extending outwardly A sleeve, a water inlet 1 connected to the sleeve is provided on the side of the end head, an inner tube is provided in the sleeve, one end of the inner tube is provided on the end head, and the other end extends in the length direction of the sleeve and extends toward the end away from the end head, a water inlet 2 connected to the inner tube is provided on the end head, an external thread is provided on the end of the sleeve away from the end head, an end of the inner tube away from the end head is inserted into the water hole and extends to the bottom end of the cooling chamber, and the external thread is threadedly connected with the second internal thread.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: an external hexagonal structure that is conducive to wrench operation is provided on the end head.

[0009] On the basis of the above scheme and as a preferred scheme of the above scheme: the bolt is a hexagon socket bolt, and the water hole penetrates from the bottom of the wrench hole of the bolt toward the threaded end.

[0010] On the basis of the above scheme and as a preferred scheme of the above scheme: a first step is provided at one end of the second internal thread away from the insert body, a second step opposite to the first step is provided on the sleeve, and a first sealing ring is provided between the first step and the second step.

[0011] On the basis of the above scheme and as a preferred scheme of the above scheme: a third step is provided at one end of the first internal thread away from the opening direction of the cooling chamber, and a second sealing ring is provided between the end face of the thread end and the third step.

[0012] On the basis of the above scheme and as a preferred scheme of the above scheme: the end of the threaded end is provided with a chamfered structure, and the outer peripheral side of one side of the second sealing ring close to the threaded end is continuously provided with annular protrusions.

[0013] In order to solve the problem that some small inserts cannot be cooled by conventional cooling structures, the utility model has the following beneficial effects:

[0014] The center point cooling structure of the small insert of the utility model cooperates with the insert body, bolts and water inlet components, and utilizes the mutual connection between water inlet 1, sleeve, water hole, cooling chamber, inner tube and water inlet 2 to form a cooling circuit that can be used to cool the insert. The coolant can enter the sleeve from water inlet 1, then flow through the water hole, cooling chamber, inner tube in sequence, and then flow out from water inlet 2 to form a cooling cycle; or it can enter the inner tube from water inlet 2, then flow through the cooling chamber, water hole, sleeve in sequence, and then flow out from water inlet 1 to form a cooling cycle.

[0015] The design is compact and the cooling effect can be guaranteed.

[0016] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the center point cooling structure of a small insert of the utility model;

[0018] Figure 2 It is a cross-sectional view of the center point cooling structure of the small insert of the utility model;

[0019] Figure 3 It is a cross-sectional view of the insert body of the utility model;

[0020] Figure 4 It is a cross-sectional view of a bolt of the utility model;

[0021] Figure 5 It is a cross-sectional view of the water inlet component of the utility model;

[0022] Figure 6 This is a cross-sectional view of the second sealing ring of the utility model. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present utility model are clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments.

[0024] See also Figure 1-6 The utility model discloses a center point cooling structure for small inserts, which can not only solve the problem that some small inserts cannot be cooled by conventional cooling structures, but also solve the problem that when considering the setting of the cooling structure, the die-casting mold cavity is fragile and needs to be maintained in a limited space and the maintenance convenience is ensured.

[0025] First, if Figure 1 Some small inserts have relatively small structures; therefore, the small insert center point cooling structure disclosed in the utility model is needed to solve the cooling problem of the insert during use.

[0026] like Figure 1-6As shown, the center point cooling structure of the fine insert includes an insert body 100, the end surface of the bottom end of the insert body 100 is provided with a cooling chamber 101 extending toward the top end, and the opening end of the cooling chamber 101 is provided with a first internal thread 102; it also includes a bolt 200, the threaded end 201 of the bolt 200 is threadedly connected with the first internal thread 102, the bolt 200 is provided with a water hole 203 extending from the large end 202 to the threaded end 201, the water hole 203 runs through the entire bolt 200, and the end of the water hole 203 close to the large end 202 is provided with a second internal thread 204; it also includes a water inlet component 300, the water inlet component 300 is provided with an end 301, and the end 301 is provided with a second internal thread 204. A sleeve 303 extending outward is provided at one end, and a water inlet 1 306 connected to the sleeve 303 is provided at the side of the end 301. An inner tube 307 is provided in the sleeve 303. One end of the inner tube 307 is provided on the end 301, and the other end extends in the length direction of the sleeve 303 and extends toward the end away from the end 301. A water inlet 2 308 connected to the inner tube 307 is provided on the end 301. An external thread 304 is provided at the end of the sleeve 303 away from the end 301. The end of the inner tube 307 away from the end 301 is inserted into the water hole 203 and extends to the bottom end of the cooling chamber 101. The external thread 304 is threadedly connected with the second internal thread 204.

[0027] On the one hand, the center point cooling structure of the small insert forms a cooling circuit for cooling the insert by cooperating with the insert body 100, the bolt 200 and the water inlet component 300, and utilizing the interconnection among the water inlet 1 306, the sleeve 303, the water hole 203, the cooling chamber 101, the inner tube 307 and the water inlet 2 308. The coolant can enter the sleeve 303 from the water inlet 1 306, and then flow through the water hole 203, the cooling chamber 101, the inner tube 307 in sequence, and then flow out from the water inlet 2 308 to form a cooling cycle; or the coolant can enter the inner tube 307 from the water inlet 2 308, and then flow through the cooling chamber 101, the water hole 203, the sleeve 303 in sequence, and then flow out from the water inlet 1 306 to form a cooling cycle.

[0028] The design is compact and the cooling effect can be guaranteed.

[0029] On the other hand, the bottom end of the insert body 100 of the center point cooling structure of the small insert is provided with a bolt 200. When the insert is set on the mold, a corresponding embedding groove can be opened on the mold body, and then after the insert is embedded, the bolt 200 is used to insert the insert body 100 from the other side of the mold body to fix the insert. Then the water inlet component 300 can be set on the bolt 200. The overall structure is easy to disassemble and assemble, which meets the convenience of mold maintenance.

[0030] like Figure 1As shown, to facilitate the loading and unloading of the water inlet component 300, an outer hexagonal structure 302 is provided on the end 301 to facilitate the operation of a wrench. Further, to facilitate the loading and unloading of the bolt 200, the bolt 200 is a hexagonal bolt, and the water hole 203 penetrates from the bottom of the wrench hole 205 of the bolt 200 toward the threaded end 201.

[0031] like Figure 2-6 In order to prevent leakage of coolant during the circulation of the center point cooling structure of the small insert, a first step 206 is provided at one end of the second internal thread 204 away from the insert body 100, and a second step 305 opposite to the first step 206 is provided on the sleeve 303. A first sealing ring 400 is provided between the first step 206 and the second step 305. When the second internal thread 204 is connected with the external thread 304, the first step 206 and the second step 305 squeeze the first sealing ring 400 to play a sealing role.

[0032] Furthermore, a third step 103 is provided at one end of the first internal thread 102 away from the opening direction of the cooling chamber 101, and a second sealing ring 500 is provided between the end surface of the threaded end 201 and the third step 103. When the threaded end 201 is threadedly connected with the first internal thread 102, the third step 103 and the end surface of the threaded end 201 will squeeze the second sealing ring 500 to play a sealing role.

[0033] In order to prevent the second sealing ring 500 from being squeezed by the threaded end 201 and causing the second sealing ring 500 to deviate or twist and affect the sealing effect, a chamfered structure 207 is provided at the end of the threaded end 201, and an annular protrusion 501 is continuously provided on the outer peripheral side of the second sealing ring 500 close to the threaded end 201. The annular protrusion 501 can fit in with the chamfered structure 207 to play a limiting role.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A small insert center point cooling structure, comprising an insert body, characterized in that: The end surface of the bottom end of the insert body is provided with a cooling chamber extending toward the top end, and the opening end of the cooling chamber is provided with a first internal thread; It also includes a bolt, wherein the threaded end of the bolt is threadedly connected to the first internal thread, the bolt is provided with a water hole extending from the large end toward the threaded end, the water hole runs through the entire bolt, and the end of the water hole close to the large end is provided with a second internal thread; It also includes a water inlet component, which is provided with an end head, one end of which is provided with a sleeve extending outward, a side portion of the end head is provided with a water inlet 1 connected to the sleeve, an inner tube is provided in the sleeve, one end of the inner tube is provided on the end head, and the other end extends in the length direction of the sleeve and extends toward an end away from the end head, a water inlet 2 is provided on the end head to connect with the inner tube, an end of the sleeve away from the end head is provided with an external thread, an end of the inner tube away from the end head is inserted into the water hole and extends to the bottom end of the cooling chamber, and the external thread is threadedly connected with the second internal thread.

2. A small insert center point cooling structure according to claim 1, characterized in that: The end head is provided with an external hexagonal structure which is convenient for wrench operation.

3. A small insert center point cooling structure according to claim 1, characterized in that: The bolt is a hexagon socket bolt, and the water hole penetrates from the bottom of the wrench hole of the bolt toward the threaded end.

4. A small insert center point cooling structure according to claim 1, characterized in that: A first step is arranged at one end of the second internal thread away from the insert body, a second step opposite to the first step is arranged on the sleeve, and a first sealing ring is arranged between the first step and the second step.

5. A small insert center point cooling structure according to claim 1, characterized in that: A third step is arranged at one end of the first internal thread away from the opening direction of the cooling chamber, and a second sealing ring is arranged between the end surface of the thread end and the third step.

6. A small insert center point cooling structure according to claim 5, characterized in that: The end of the threaded end is provided with a chamfered structure, and the outer peripheral side of one side of the second sealing ring close to the threaded end is continuously provided with an annular protrusion.

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