Cooling water path structure of ejector pin

Abstract

The utility model discloses a cooling water path structure of ejector pins, which comprises a water path body arranged in a space between two ejector pins and a cutter, and the water path body is attached to the inner wall of a die. According to the utility model, the waterway is arranged between the ejector pin and the cutter, so that heat in the space between the cutter and the ejector pin can be cooled, the temperature in the mold is reduced, and the cutter and the interior of the mold are uniformly cooled.

Description

Technical Field

[0001] The utility model relates to the field of mold cooling, in particular to a cooling water channel structure of an ejector pin. Background Art

[0002] When processing some smaller covers, the cover is located between the upper die and the lower die. Due to the buckle structure inside the product, the tool of the lower die is prone to heat up when processing the buckle, which may cause the cover to deform. Therefore, the tool needs to be cooled during processing to prevent the tool body from overheating.

[0003] The applicant believes that the mold has a structure in which an inner slider is first extracted from the insert, and the scraper of the inner slider is a pin-type scraper. The water channel for cooling the tool surrounds the tool and the ejector, which causes the outer shell of the mold to adaptively become larger to accommodate the water channel, resulting in the overall volume of the mold being too large, and further leading to the need to set up other structures to make the volume of the top of the mold adapt to the requirements of the cover body, ultimately making the structure of the mold cumbersome and complicated. Utility Model Content

[0004] In order to reduce the situation where the water channel occupies the space inside the mold and causes the overall volume of the mold to increase, the utility model provides a cooling water channel structure for an ejector pin.

[0005] The cooling water channel structure of a ejector provided by the utility model adopts the following technical solution:

[0006] A cooling water channel structure for an ejector pin comprises a water channel body arranged in a spacing space between two ejector pins and a tool, wherein the water channel body is arranged in contact with an inner wall of a mold.

[0007] The water channel is located between the two ejectors and the tool, utilizing the remaining space between the ejector and the tool to effectively cool the tool while avoiding the situation where the mold volume required would be too large due to the water channel being provided around the tool and the ejector. The water channel is located between the ejector and the tool to cool the heat in the space between the tool and the ejector, thereby lowering the temperature inside the mold and ensuring uniform cooling of the tool and the interior of the mold.

[0008] Preferably, the water channel body includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are arranged on both sides of the cutter facing each other.

[0009] The water inlet pipe and the water outlet pipe are arranged on both sides of the tool, so that the two paths of the cooling water flowing back and forth extend in the length direction of the tool, improving the utilization rate of the cooling water and allowing the cooling water to cool the tool more completely.

[0010] Preferably, the maximum distance between the water inlet pipe and the water outlet pipe is smaller than the maximum distance between the side walls of the two ejector pins.

[0011] The maximum distance between the water inlet pipe and the water outlet pipe is smaller than the maximum distance between the two ejectors, so the water inlet pipe and the water outlet pipe will not increase the width of the mold. The extra space in the mold created by setting the ejectors makes the structure between the water channel body and the mold more compact.

[0012] Preferably, the ends of the water inlet pipe and the water outlet pipe close to the end of the tool are both flat, and the flat section of the water inlet pipe and the flat section of the water outlet pipe are clamped on both sides of the tool, and the water inlet pipe and the water outlet pipe both maintain a distance from the side wall of the tool.

[0013] The flat section of the water inlet pipe makes the area of the cooling water in the water inlet pipe facing the tool larger, making the heat absorption efficiency of the section of the water inlet pipe close to the tool higher. After the cooling water flows into the water outlet pipe, it can further absorb heat, so that the heat generated by the tool during operation is more completely absorbed and taken away, making the water channel body more efficient in absorbing heat from the tool.

[0014] Preferably, an extension pipe is connected between the water inlet pipe and the water outlet pipe.

[0015] The cooling water in the water inlet pipe absorbs heat and flows into the extension pipe, extending the flow path of the cooling water in the mold, making the cooling water absorb heat more completely, which is beneficial to improving the heat absorption efficiency of the water channel body.

[0016] Preferably, the extension tube is located between two ejector pins.

[0017] Since there is a gap between the two ejector pins, the extension tube is filled between the two ejector pins to make fuller use of the space in the mold.

[0018] Preferably, the extension tube is in the shape of a vertically arranged open ring, and the two openings of the extension tube are both located at the top of the extension tube, and the two openings of the extension tube are respectively connected to the water inlet pipe and the water outlet pipe.

[0019] The extension pipe extends downward from the top and then meanders toward the top, making the extension pipe longer. The cooling water loses some heat after passing through the extension pipe, and the temperature drops when it flows to the outlet pipe, so that the cooling water in the outlet pipe absorbs more heat and takes it away.

[0020] Preferably, the portion of the extension tube located between the ejector pins is flat, and the flat side of the extension tube faces the ejector pins.

[0021] The portion of the extension tube located between the ejector pins is made flat, which reduces the situation where the setting of the extension tube affects the limited space between the ejector pins, thereby making more full use of the space between the ejector pins and the tool to set the water channel body.

[0022] Preferably, the water channel body is embedded in the mold.

[0023] A groove for embedding the water channel body is opened inside the mold. The setting of the groove allows the heat of the tool to be dissipated into the groove, reducing the temperature accumulation inside the mold body. On the other hand, the water channel body is supported by the mold's own structure, making it difficult for the water channel body to deform, and no additional supporting structure is required, preventing the setting of the water channel body from causing complex internal structure of the mold.

[0024] In summary, the present invention has the following beneficial technical effects:

[0025] The water channel is located between the two ejectors and the tool, utilizing the remaining space between the ejector and the tool to effectively cool the tool while avoiding the situation where the mold volume required would be too large due to the water channel being provided around the tool and the ejector. The water channel is located between the ejector and the tool to cool the heat in the space between the tool and the ejector, thereby lowering the temperature inside the mold and ensuring uniform cooling of the tool and the interior of the mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural diagram used to illustrate the relative relationship between the mold and the cover.

[0027] Figure 2 It is a schematic diagram of the overall structure of a cooling water channel structure of an ejector pin of the utility model.

[0028] Figure 3 It is a three-view drawing used to illustrate the relative positions of the waterway, tool and ejector.

[0029] Explanation of the accompanying symbols: 1. ejector pin; 2. tool; 3. water channel body; 4. water inlet pipe; 5. water outlet pipe; 6. extension pipe; 7. mold. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 The utility model is described in further detail.

[0031] The embodiment of the utility model discloses a cooling water channel structure of an ejector pin.

[0032] Reference Figure 1 as well as Figure 2 A cooling water channel structure of an ejector pin 1 includes a water channel body 3 arranged in the spacing space between two ejector pins 1 and a tool 2, and the water channel body 3 is arranged to fit the inner wall of a mold 7.

[0033] The water channel is provided between the two ejector pins 1 and the tool 2, utilizing the remaining space between the ejector pins 1 and the tool 2 to effectively cool the tool 2 while avoiding the situation where the volume required for the mold 7 is too large due to the provision of water channels around the tool 2 and the ejector pins 1. In addition, the water channel is provided between the ejector pins 1 and the tool 2 to cool the heat lingering in the space between the tool 2 and the ejector pin 1, thereby reducing the temperature inside the mold 7 and ensuring uniform cooling of the tool 2 and the interior of the mold 7.

[0034] Reference Figure 2 as well as Figure 3 In this embodiment, the water channel body 3 includes a water inlet pipe 4 and a water outlet pipe 5 , and the water inlet pipe 4 and the water outlet pipe 5 are arranged on both sides of the tool 2 opposite to each other.

[0035] The water inlet pipe 4 and the water outlet pipe 5 are respectively arranged on both sides of the tool 2, so that the two paths of the cooling water flowing back and forth extend in the length direction of the tool 2, thereby improving the utilization rate of the cooling water and allowing the cooling water to cool the tool 2 more completely.

[0036] Reference Figure 2 as well as Figure 3 In this embodiment, the maximum distance between the water inlet pipe 4 and the water outlet pipe 5 is smaller than the maximum distance between the side walls of the two ejector pins 1 .

[0037] The maximum distance between the water inlet pipe 4 and the water outlet pipe 5 is smaller than the maximum distance between the two ejector pins 1. Therefore, the water inlet pipe 4 and the water outlet pipe 5 will not increase the width of the mold 7. The extra space in the mold 7 caused by the installation of the ejector pins 1 makes the structure between the water channel body 3 and the mold 7 more compact.

[0038] Reference Figure 2 as well as Figure 3 In this embodiment, the ends of the water inlet pipe 4 and the water outlet pipe 5 close to the end of the tool 2 are both flat, and a flat section of the water inlet pipe 4 and a flat section of the water outlet pipe 5 are clamped on both sides of the tool 2, and the water inlet pipe 4 and the water outlet pipe 5 maintain a distance from the side wall of the tool 2.

[0039] The flat section of the water inlet pipe 4 makes the area of the cooling water in the water inlet pipe 4 facing the tool 2 larger, so that the heat absorption efficiency of the section of the water inlet pipe 4 close to the tool 2 is higher. After the cooling water flows to the water outlet pipe 5, it can further absorb heat, so that the heat generated by the tool 2 during operation is more completely absorbed and taken away, making the water channel body 3 more efficient in absorbing heat from the tool 2.

[0040] Reference Figure 2 as well as Figure 3 In this embodiment, an extension pipe 6 is connected between the water inlet pipe 4 and the water outlet pipe 5.

[0041] The cooling water in the water inlet pipe 4 absorbs heat and flows into the extension pipe 6, extending the flow path of the cooling water in the mold 7, making the cooling water absorb heat more completely, which is beneficial to improving the heat absorption efficiency of the water channel body 3.

[0042] Reference Figure 2 as well as Figure 3 In this embodiment, the extension tube 6 is located between the two ejector pins 1 .

[0043] Since there is a gap between the two ejector pins 1 , the extension tube 6 is filled between the two ejector pins 1 to more fully utilize the space in the mold 7 .

[0044] Reference Figure 2 as well as Figure 3 In this embodiment, the extension tube 6 is in the shape of a vertically arranged open ring, and the two openings of the extension tube 6 are both located at the top of the extension tube 6. The two openings of the extension tube 6 are respectively connected to the water inlet pipe 4 and the water outlet pipe 5.

[0045] The extension pipe 6 extends downward from the top and then meanders toward the top, making the extension pipe 6 longer. The cooling water loses some heat after passing through the extension pipe 6, and the temperature drops when it flows to the water outlet pipe 5, so that the cooling water in the water outlet pipe 5 absorbs more heat and takes it away.

[0046] Reference Figure 2 as well as Figure 3 In this embodiment, the portion of the extension tube 6 located between the ejector pins 1 is flat, and the flat side of the extension tube 6 faces the ejector pins 1 .

[0047] The portion of the extension tube 6 between the ejector pins 1 is flattened to reduce the impact of the extension tube 6 on the limited space between the ejector pins 1 , thereby making fuller use of the space between the ejector pins 1 and the tool 2 to set the water channel body 3 .

[0048] Reference Figure 2 as well as Figure 3 In this embodiment, the water channel body 3 is embedded in the mold 7.

[0049] A groove for embedding the water channel body 3 is provided inside the mold 7. The setting of the groove allows the heat of the tool 2 to be dissipated into the groove, reducing the temperature accumulation inside the mold 7. On the other hand, the water channel body 3 is supported by the mold 7's own structure, making it difficult for the water channel body 3 to deform, and there is no need to set up an additional supporting structure, thereby preventing the setting of the water channel body 3 from causing a complex internal structure of the mold 7.

[0050] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A cooling water channel structure for an ejector pin, characterized in that: The water channel body is provided in the spacing space between the two ejector pins and the cutter, and the water channel body is provided in contact with the inner wall of the mold.

2. The cooling water channel structure of the ejector pin according to claim 1, characterized in that: The water channel body comprises a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are arranged on two sides of the cutter facing each other.

3. The cooling water channel structure of the ejector pin according to claim 2, characterized in that: The maximum distance between the water inlet pipe and the water outlet pipe is smaller than the maximum distance between the side walls of the two ejector pins.

4. The cooling water channel structure of the ejector pin according to claim 3, characterized in that: The ends of the water inlet pipe and the water outlet pipe close to the end of the tool are both flat, and the flat section of the water inlet pipe and the flat section of the water outlet pipe are clamped on both sides of the tool, and the water inlet pipe and the water outlet pipe maintain a distance from the side wall of the tool.

5. The cooling water channel structure of the ejector pin according to claim 2, characterized in that: An extension pipe is connected between the water inlet pipe and the water outlet pipe.

6. The cooling water channel structure of the ejector pin according to claim 5, characterized in that: The extension tube is located between the two ejector pins.

7. The cooling water channel structure of the ejector pin according to claim 6, characterized in that: The extension tube is in the shape of a vertically arranged open ring, and the two openings of the extension tube are both located at the top of the extension tube. The two openings of the extension tube are respectively connected to the water inlet pipe and the water outlet pipe.

8. The cooling water channel structure of the ejector pin according to claim 7, characterized in that: The portion of the extension tube located between the ejector pins is flat, and the flat side of the extension tube faces the ejector pins.

9. The cooling water channel structure of the ejector pin according to claim 1, characterized in that: The water channel body is embedded in the mold.

Images