Water cooling rod structure and mold

Abstract

The utility model relates to the technical field of dies, in particular to a water-cooling rod structure and a die, which comprises a die body and a water-cooling rod fixed in the die body, a cooling hole is arranged in the die body, and the water-cooling rod is fixed in the cooling hole; the cooling holes comprise a middle hole, a lateral inlet hole and a lateral outlet hole which are radially communicated with the two sides of the middle hole, and a water inlet hole and a water outlet hole which are respectively formed in the two sides of the middle hole in parallel; the water inlet hole is communicated with the middle hole through the lateral inlet hole, and the water outlet hole is communicated with the middle hole through the lateral outlet hole; the water cooling rod comprises a cylindrical section and a circular pipe section fixed in the center of the cylindrical section, the circular pipe section is located in the middle hole, a circle of annular groove is formed in the cylindrical section, and the annular groove and the lateral inlet hole are oppositely arranged; the bottom of the annular groove is radially provided with a through hole communicated with the circular pipe section. According to the scheme, the cooling water circulation path in the mold is optimized, so that the mold is cooled more uniformly, the heat exchange efficiency is higher, the cooling effect of the mold body is effectively enhanced, the product forming precision is ensured, and the service life of the mold is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mould, specifically is a water cooling rod structure and mould. BACKGROUND

[0002] Mould is a kind of tool for material forming industry, is evenly widely applied in manufacturing.

[0003] Mould generates heat when using, and the heat generated by the mould not only causes the heat shrinkage effect to aggravate, the shape of the mould changes greatly, causes the precision of the product processed to be poor;Especially some core-pulling moulds, after product forming, the mould is extracted from the product, if the mould is overheated, the core will take the material, scratch the inner hole wall of the product, and cause quality problems;In addition, the heat generated by the mould also causes the thermal fatigue of the mould, speeds up the wear of the mould, shortens the service life of the mould, and increases the maintenance cost, so cooling and temperature reduction of the mould in the use process are extremely important.

[0004] The cooling mode of the mould is usually to set a cooling chamber in the mould, and insert a cooling device into the chamber, and the cooling medium is passed into the cooling device to take away the heat of the mould to realize the cooling and temperature reduction of the mould, such as the prior art "a water cooling rod and mould" (publication number: CN207403047U) discloses a water cooling rod, a hollow chamber is formed in the center of the water cooling rod, the side wall of the chamber is communicated with a water inlet hole and a water outlet hole, the water cooling rod is installed into the mould, cooling water is passed into the hollow chamber of the water cooling rod from the water inlet hole, and is flowed out from the water outlet hole, and the heat of the mould is transferred to the water cooling rod and then taken away by the cooling water and discharged.

[0005] Firstly, the cooling water in the prior art enters the hollow chamber of the water cooling rod, and the heat of the rod body of the water cooling rod is taken away indirectly to take away the heat of the mould, the cooling water cannot be directly contacted with the mould, and the cooling effect is limited;Secondly, the water inlet hole and the water outlet hole of the water cooling rod are adjacently arranged, when the cooling water enters the hollow chamber of the water cooling rod from the water inlet hole, the cooling water is directly discharged from the water outlet hole without entering the chamber of the water cooling rod for heat exchange, which further causes the cooling effect of the mould to be poor, causes the product to be deformed due to the high-temperature expansion of the mould, reduces the product quality precision, and the overheating of the mould also easily causes the inner stress to change greatly, causes the mould to crack, and reduces the service life of the mould. CONTENT OF THE UTILITY MODEL

[0006] The utility model provides a water cooling rod structure and mould, can solve the problem that the mould cooling structure in prior art easily causes the poor cooling effect of the mould, easily causes the low precision of product after forming and the problem of the decline of mould service life.

[0007] The application provides the following technical scheme: a water-cooled rod structure; the water-cooled rod comprises a cylindrical segment and a circular tube segment fixed at the center of the cylindrical segment, and a ring groove is arranged on the cylindrical segment; a through hole is arranged at the bottom of the ring groove and communicates with the circular tube segment.

[0008] Beneficial effects:

[0009] The cooling water flow path is optimized, and the mold cooling effect is improved. The through hole is arranged at the bottom of the ring groove and communicates with the circular tube segment, and the advantage of this arrangement is that as long as the position of the cooling water injection is aligned with the ring groove, the cooling water can flow into the through hole and flow into the mold body, on the one hand, the process rationality is ensured, and the relative position of the through hole and the water injection hole does not need to be accurately controlled, thereby reducing the manufacturing difficulty of the water-cooled rod; on the other hand, after the cooling water enters the ring groove, the workpiece of the ring groove can accommodate a part of the cooling water, so that even if the water pressure and flow rate of the cooling water change too quickly, the flow of the cooling water in the circular tube segment will not be affected, the smoothness of the cooling water flow is improved, and the cooling effect of the mold body is further improved. Since the water-cooled rod is fixed in the mold, after the cooling water flows from the circular tube segment to the bottom, it enters the installation cavity in the mold, and then flows back from the deep installation cavity to the position close to the cooling water discharge outlet for discharge, and the cooling water contacts the inside of the mold and the outer wall of the circular tube segment during the backflow process, thereby taking away the heat inside the mold and further transferring the heat to the circular tube segment, and then transferring the heat to the subsequent cooling water flowing into the hole in the circular tube segment. This process enhances the heat exchange effect, and has a better heat exchange effect than the cooling process in which the cooling water directly flows through the mold body, thereby effectively optimizing and improving the mold cooling effect.

[0010] Further, the circular tube segment is a copper pipe.

[0011] Beneficial effects: The copper pipe has a very high thermal conductivity, which can accelerate the heat exchange speed of the cooling water to improve the cooling effect of the mold body.

[0012] A mold is used for fixing a water-cooled rod; the mold comprises a mold body and a cooling hole arranged in the mold body, the cooling hole comprises a middle hole arranged in the middle of the mold body, a lateral inlet hole and a lateral outlet hole radially communicated on both sides of the middle hole, and a water inlet hole and a water outlet hole arranged in parallel on both sides of the middle hole, respectively; the water inlet hole is communicated with the middle hole through the lateral inlet hole, the water outlet hole is communicated with the middle hole through the lateral outlet hole, the ring groove is arranged opposite to the lateral inlet hole, and the circular tube segment is located in the middle hole.

[0013] Beneficial effect: improve the mold cooling effect, improve product forming precision and mold life. The water inlet hole and the water outlet hole are arranged on the two sides of the middle hole, so that the cooling water can flow into the middle hole of the mold body from one side of the mold body into the circular pipe section, and then flow out from the other side of the mold body, carrying away the heat of the mold body along the way. Compared with the prior art, the cooling water flow circuit of the present scheme uniformly covers the entire mold body, so that the cooling of the mold body is more uniform, and the situation that the cooling water is directly discharged after entering the water cooling rod is avoided. At the same time, the cooling water enters the middle hole of the mold body after entering the circular pipe body, so that the cooling water directly contacts the inside of the mold body, and the heat exchange efficiency is higher, thereby effectively improving the cooling effect of the mold body.

[0014] Further, the cooling hole further comprises a conical hole and a stepped hole communicated in sequence, the stepped hole is communicated between the conical hole and the middle hole, and when the water cooling rod is installed in the cooling hole, the annular groove is located in the stepped hole and the cylindrical section is located in the conical hole.

[0015] Beneficial effect: the conical hole facilitates the connection and fixation of the water cooling rod, and the stepped hole facilitates the formation of an annular chamber with the annular groove, which helps the cooling water flowing into the through hole after filling the annular chamber from the lateral inlet hole.

[0016] Further, the inner wall of the conical hole is provided with a conical pipe thread, and the cylindrical section and the conical hole are connected by a spinal canal thread.

[0017] Beneficial effect: the spinal canal thread can withstand high pressure, and the conical surface of the spinal canal thread can form a seal with the conical surface, which can effectively prevent cooling water leakage.

[0018] Further, the mouth of the lateral inlet hole and the lateral outlet hole is provided with a plug.

[0019] Beneficial effect: since the lateral inlet hole and the lateral outlet hole are located inside the mold body, it is necessary to drill holes from the outside to the inside of the mold body during processing, so the hole is plugged with a plug to prevent cooling water from leaking from the mouth.

[0020] Further, the water inlet hole and the water outlet hole are further respectively communicated with a water inlet pipe and a water outlet pipe.

[0021] Beneficial effect: the water inlet pipe and the water outlet pipe are used to communicate with the cooling hole to form a cooling water circulation loop. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure of the utility model's front view.

[0023] Figure 2 It is Figure 1 The front view of the middle water cooling rod.

[0024] Figure 3 It is the front view of the mold of embodiment two. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The markings in the accompanying drawings include: mold body 1, water outlet 101, water inlet 102, central hole 2, circular pipe section 3, side outlet 4, water outlet pipe 5, cylindrical section 6, annular groove 61, through hole 62, water inlet pipe 7, side inlet 8, stepped hole 9, and conical hole 10.

[0027] Example 1

[0028] like Figure 1 and Figure 2 As shown, a water-cooled rod structure includes a cylindrical section 6 and a circular tube section 3 threadedly connected to the center of the cylindrical section 6. The circular tube section 3 is made of copper, which has a very high thermal conductivity, enabling it to accelerate the heat exchange rate of the cooling water and improve the cooling effect. A ring groove 61 is provided on the cylindrical section 6, and a through hole 62 is provided radially at the bottom of the ring groove 61, communicating with the circular tube section 3.

[0029] When in use, the water cooling rod needs to be installed into the mounting cavity of the mold. Then, ensure that the cooling water is injected into the annular groove 61 from the side. The annular groove 61 and the inner wall of the mounting cavity form an annular cavity that can accommodate the cooling water. Then, the cooling water enters the inner hole of the circular tube section 3 through the through hole 62 at the bottom of the annular groove 61 and flows into the mold through the inner hole to cool the inside of the mold.

[0030] Example 2

[0031] like Figure 1 and Figure 3 As shown, a mold for fixing a water-cooling rod according to one embodiment includes a mold body 1 and cooling holes opened in the mold body 1, with the water-cooling rod fixed in the cooling holes.

[0032] like Figure 3 As shown, the cooling holes include a conical hole 10, a stepped hole 9, a central hole 2, and a lateral inlet hole 8 and a lateral outlet hole 4 radially connected on both sides of the central hole 2, and a water inlet hole 102 and a water outlet hole 101 respectively arranged parallel to each other on both sides of the central hole 2. The water inlet hole 102 is connected to the central hole 2 through the lateral inlet hole 8, and the water outlet hole 101 is connected to the central hole 2 through the lateral outlet hole 4. Plugs (omitted in the figure) are provided at the openings of the lateral inlet hole 8 and the lateral outlet hole 4 to seal the openings and prevent cooling water from leaking out.

[0033] like Figure 1As shown, when the water-cooling rod is installed in the cooling hole, the annular groove 61 is located in the stepped hole 9, and the annular groove 61 is opposite to the side inlet hole 8. The circular tube section 3 is located in the central hole 2, while the cylindrical section 6 is located in the conical hole 10. The inner wall of the conical hole 10 is provided with a conical pipe thread. The cylindrical section 6 and the conical hole 10 are connected by a conical pipe thread. The conical pipe thread can withstand high pressure, and a seal can be formed between the conical surfaces of the conical pipe thread, which can effectively prevent cooling water leakage.

[0034] Water inlet pipe 7 and water outlet pipe 5 are threadedly connected to water inlet hole 102 and water outlet hole 101 respectively. Cooling water can be continuously introduced into mold body 1 from water inlet pipe 7 and flow out from water outlet pipe 5 to achieve cooling cycle.

[0035] During use, the cooling water flow path is as follows: Figure 1 As shown by the middle arrow, cooling water enters from the inlet pipe 7, passes through the inlet hole 102 and the side inlet hole 8 in sequence, and flows into the annular cavity formed by the wall of the annular groove 61 and the stepped hole 9. Then, it enters the circular pipe section 3 and the central hole 2 through the through hole 62 at the bottom of the annular groove 61 in sequence. Finally, it exits the mold body 1 through the side outlet hole 4, the outlet hole 101, and the outlet pipe 5. When the cooling water flows in the mold body 1, it exchanges heat with the mold along the way, so as to achieve the purpose of cooling the mold body 1. It should be noted that the cooling water first flows from the circular pipe section 3 to the bottom of the central hole 2, and then flows back from the depth of the central hole 2 to the opening of the central hole 2 and enters the side outlet 4 for discharge. During the process of the cooling water flowing back from the depth of the central hole 2, it will come into contact with the mold body 1 and the outer wall of the circular pipe section 3 respectively. This will not only remove the heat from the mold body 1, but also further transfer the heat to the circular pipe section 3, and then transfer it to the cooling water that flows into the inner hole of the circular pipe section 3. This process enhances the heat exchange effect and has a better heat exchange effect than the cooling process in which the cooling water flows directly from the mold body 1, thereby effectively optimizing and improving the cooling effect of the mold.

[0036] The above are merely embodiments of this utility model, and the utility model is not limited to the field covered by this embodiment. Commonly known structures and characteristics in the solutions are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A water-cooled rod structure, characterized in that: the water-cooled rod comprises a cylindrical segment and a circular tube segment fixed at the center of the cylindrical segment, the circular tube segment is located in a middle hole, and a ring groove is arranged on the cylindrical segment; a through hole is arranged at the bottom of the ring groove and communicates with the circular tube segment.

2. A water-cooled rod structure according to claim 1, characterized in that: The circular tube segment is a copper tube.

3. A mold characterized by: The mold body comprises a mold body and a cooling hole arranged in the mold body, the cooling hole is provided with the water-cooled rod structure according to any one of claims 1-2, the cooling hole comprises a middle hole arranged in the middle of the mold body, a lateral inlet hole and a lateral outlet hole which are radially communicated on both sides of the middle hole, and a water inlet hole and a water outlet hole which are arranged in parallel on both sides of the middle hole respectively; the water inlet hole communicates with the middle hole through the lateral inlet hole, the water outlet hole communicates with the middle hole through the lateral outlet hole, the ring groove is arranged opposite to the lateral inlet hole, and the circular tube segment is located in the middle hole.

4. A mold as defined in claim 3, wherein: The cooling hole further comprises a conical hole and a stepped hole which are communicated in sequence, the stepped hole is communicated between the conical hole and the middle hole, when the water-cooled rod is installed in the cooling hole, the ring groove is located in the stepped hole, and the cylindrical segment is located in the conical hole.

5. A mold according to claim 4, characterized in that: A taper pipe thread is arranged on the inner wall of the conical hole, and the cylindrical segment is connected with the conical hole by using a spinal canal thread.

6. A mold according to claim 5, characterized in that: A plug is arranged at the mouth of the lateral inlet hole and the lateral outlet hole.

7. A mold according to claim 6, characterized in that: A water inlet pipe and a water outlet pipe are further communicated with the water inlet hole and the water outlet hole respectively.

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