A mold slider core impeller-shaped air cooling structure

Abstract

The present invention relates to the technical field of mold cooling system, and more specifically, to a mold slider core impeller-shaped air cooling structure, which specifically includes a first slider and a second slider, wherein the first slider is provided with a horseshoe core, and the non-molding surface of the horseshoe core is hollowed out with an impeller-shaped cavity; the second slider is provided with a second core, and the second core penetrates the non-molding surface of the horseshoe core, and the second core is hollowed out with an air inlet and an air outlet for connecting the impeller-shaped cavity. The present invention timely cools the movable horseshoe core, shortens the injection molding cycle of the movable core and horseshoe-type molds by about 30%, effectively improves the product qualification rate, and solves the problem of difficulty in cooling the movable horseshoe forming parts of the existing elbow, tee, and water trap series molds.

Description

Technical Field

[0001] The invention relates to the technical field of mold cooling systems, and more specifically to a mold slider core impeller-shaped air cooling structure. Background Art

[0002] At present, among the national standard drainage series product molds of our company, there is a kind of active horseshoe forming part in the elbow, tee and water trap series molds. After a period of continuous production, this horseshoe part is in a hot state and cannot be cooled down, resulting in the decline of product quality, slight internal cracking, long injection cycle, and high product defect rate. At present, there are two main forms of cooling for active forming parts: water cooling and air cooling. However, since the active horseshoe forming part is in an active state during the production process, conventional water channels cannot cool this horseshoe.

[0003] Patent No. CN205439154U discloses an injection mold structure that uses air to cool the core. This technical solution sets a communicating air path between the slider and the moving mold core, and uses a blowing device to achieve air cooling. However, since the air path is a straight air path and the line design is very simple, the air flow rate is too fast, and only a small part of the heat near the air path can be taken away, making the cooling range very limited. Summary of the invention

[0004] In order to overcome the defects of the prior art described above, the present invention provides a mold slider core impeller-shaped air cooling structure to timely cool the movable horseshoe core, shorten the injection molding cycle of the movable core and horseshoe mold by about 30%, and effectively improve the product qualification rate.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A mold slider core impeller-shaped air-cooling structure comprises a first slider and a second slider, wherein the first slider is provided with a horseshoe core, and an impeller-shaped cavity is hollowed out on a non-molding surface of the horseshoe core; the second slider is provided with a second core, and the second core penetrates the non-molding surface of the horseshoe core, and the second core is hollowed out with an air inlet and an air outlet for connecting the impeller-shaped cavity.

[0007] During mold production, the core is cooled by blowing air during mold closing and the air is turned off after mold opening in combination with the original mold blowing and mold opening functions of the injection molding machine. This avoids wasting compressed air and noise pollution. Compressed air enters the impeller-shaped cavity of the horseshoe core from the air inlet, flows around once and then flows out from the air outlet, taking away the heat of the horseshoe core in the process.

[0008] Furthermore, the impeller-shaped cavity includes a wheel-shaped flow guide groove and a blade blind hole that are interconnected. The wheel-shaped flow guide groove is a non-closed circular ring, and the air inlet and outlet are respectively connected to the two ends of the non-closed circular ring; the blade blind holes are evenly arranged around the circumference of the wheel-shaped flow guide groove. The wheel-shaped flow guide groove serves as the main path, and the blade blind holes serve as the branch path. The compressed air forms a vortex-like airflow in the impeller-shaped cavity, which fully flows and absorbs the heat of the horseshoe core.

[0009] Furthermore, the diameters of the air inlet and outlet are consistent and are smaller than the ring width of the wheel-shaped guide groove. The diameters of the air inlet and outlet are smaller than the inner diameter of the wheel-shaped guide groove, mainly to allow the compressed air to fully stay in the impeller-shaped cavity.

[0010] Furthermore, the blade blind holes are respectively located on both sides of the inner and outer sides of the wheel-shaped guide groove ring. The heat absorption area of ​​the blade blind holes covers the horseshoe core as much as possible, and the depth of each blade blind hole can be appropriately adjusted under the condition of maintaining the strength of the core.

[0011] Furthermore, the non-molding surface of the horseshoe core is also provided with an annular groove, which surrounds the impeller-shaped cavity and does not interfere with the impeller-shaped cavity. The annular groove is mainly used to collect gas that permeates from the impeller-shaped cavity to prevent it from affecting the injection molding quality of the product.

[0012] Furthermore, the first slider is provided with a first slider seat for fixing the horseshoe core, and the second slider is provided with a second slider seat for fixing the second core. The slider seat is a common component of the slider and is used to fix the slider core.

[0013] Furthermore, the air inlet path extends to the second slider seat, and the air inlet path is connected to a compressed air source; an air nozzle is provided at the air inlet end of the air inlet path. The air inlet path extends from the second core to the second slider seat, and in order to prevent gas leakage, a sealing ring, a copper plug or other sealing member is generally used for sealing. The air nozzle is mainly connected to a compressed air source.

[0014] Furthermore, the outlet path is extended to the second slider seat, and a muffler is provided at one end of the outlet path to reduce noise. The design of the outlet path is similar to that of the inlet path, and a muffler is installed at one end of the outlet path to absorb exhaust noise and reduce noise pollution.

[0015] Furthermore, the second core is a straight core. The second core can be a straight core or a thumb core.

[0016] Furthermore, the second core is also provided with a plurality of water channels, and the water channels do not interfere with the air inlet channel and the air outlet channel. The second core may be provided with water channels for cooling.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention discloses an impeller-shaped air-cooling structure for a mold slider core, which solves the problem of difficulty in cooling the movable horseshoe-formed parts of the existing elbow, tee, and trap series molds, and utilizes the gas to fully flow in the horseshoe core to take away heat, cool down in time, and improve the quality of injection molded products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an exploded view of the overall assembly of the present invention.

[0019] Figure 2 It is the overall mold clamping state diagram of the present invention.

[0020] Figure 3 It is a schematic diagram of the horseshoe core structure.

[0021] Figure 4 It is a schematic diagram of the second core structure.

[0022] Figure 5 It is a schematic diagram of the cavity structure of the air cooling route.

[0023] Among them, 1 is a first slider, 2 is a horseshoe core, 3 is an impeller-shaped cavity, 4 is a second slider, 5 is a second core, 6 is an air inlet path, 7 is an air outlet path, 8 is a wheel-shaped guide groove, 9 is a blade blind hole, 10 is an annular groove, 11 is a first slider seat, 12 is a second slider seat, 13 is an air nozzle, 14 is a muffler, and 15 is a water path. DETAILED DESCRIPTION

[0024] The drawings are only for illustrative purposes and cannot be construed as limiting the present invention. To better illustrate the present embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the drawings. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as limiting the present invention.

[0025] Example 1

[0026] like Figure 1-2 As shown, this embodiment provides a mold slider core impeller-shaped air-cooling structure, which is mainly used in elbow, tee, and trap series molds.

[0027] The structure includes a first slider 1 and a second slider 4. The first slider 1 is provided with a horseshoe core 2. The non-molding surface of the horseshoe core 2 is hollowed out with an impeller-shaped cavity 3. Specifically, the impeller-shaped cavity 3 includes a wheel-shaped guide groove 8 and a blade blind hole 9 that are interconnected. The wheel-shaped guide groove 8 is a non-closed circular ring. The blade blind holes 9 are evenly arranged around the circumference of the wheel-shaped guide groove 8, and the blade blind holes 9 are arranged on both sides of the inner and outer sides of the wheel-shaped guide groove 8. Figure 3 shown.

[0028] The second slider 4 is provided with a second core 5, which penetrates the non-molding surface of the horseshoe core 2. The second core 5 is dug with an air inlet 6 and an air outlet 7 for connecting to the impeller-shaped cavity 3. The air inlet 6 and the air outlet 7 are respectively connected to the two ends of the non-closed circular ring. Specifically, the pipe diameters of the air inlet 6 and the air outlet 7 are consistent, and are both smaller than the ring width of the wheel-shaped guide groove 8. In this embodiment, the second core 5 is a straight core, and a plurality of cooling water channels 15 are also provided in the second core 5. The water channels 15 do not interfere with the air inlet 6 and the air outlet 7. Figure 4 shown.

[0029] In addition, the non-molding surface of the horseshoe core 2 is also provided with an annular groove 10, which surrounds the impeller-shaped cavity 3 and does not interfere with the impeller-shaped cavity 3. The annular groove 10 mainly plays a protective role. The annular groove 10 collects the gas that penetrates from the impeller-shaped cavity 3 to prevent it from affecting the injection molding quality of the product.

[0030] Specifically, the first slider 1 is provided with a first slider seat 11 for fixing the horseshoe core 2, and the second slider 4 is provided with a second slider seat 12 for fixing the second core 5. Among them, the air inlet 6 is extended to the second slider 4 seat 12, and the air inlet 6 is connected to a compressed air source; an air nozzle 13 is also provided at the air inlet end of the air inlet 6, and the air nozzle 13 is mainly connected to the compressed air source. Similarly, the air outlet 7 is also extended to the second slider 4 seat 12, but a muffler 14 for reducing noise is provided at the air outlet end of the air outlet 7. The muffler absorbs exhaust noise and reduces noise pollution. Figure 5 shown.

[0031] During mold production, combined with the original mold-closing air blowing and mold-opening and air-closing functions of the injection molding machine, during the injection molding process, when the mold is closed, the second core 5 collides with the non-molding surface of the horseshoe core 2, and the compressed air enters the impeller-shaped cavity 3 along the air inlet 6, wherein the wheel-shaped guide groove 8 serves as the main path and the blade blind hole 9 serves as the branch path. The compressed air forms a vortex-like airflow in the impeller-shaped cavity 3, fully flows to absorb the heat of the horseshoe core 2, and finally flows out from the air outlet 7. After the mold is opened, the residual compressed air in the impeller-shaped cavity 3 automatically diffuses. When the next injection molding cycle comes, the air cooling operation is repeated. This solution solves the problem of difficult cooling of the movable horseshoe-shaped parts of the existing elbow, tee, and water trap series molds, and uses the gas to fully flow in the horseshoe core to take away the heat, cool down in time, and improve the quality of the injection molded products.

[0032] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A mold slider core impeller-shaped air cooling structure, characterized in that: The invention comprises a first slider (1) and a second slider (4), wherein the first slider (1) is provided with a horseshoe core (2), and a non-molding surface of the horseshoe core (2) is hollowed out with an impeller-shaped cavity (3); the second slider (4) is provided with a second core (5), the second core (5) penetrates the non-molding surface of the horseshoe core (2), and the second core (5) is hollowed out with an air inlet (6) and an air outlet (7) for connecting the impeller-shaped cavity (3); the pipe diameters of the air inlet (6) and the air outlet (7) are consistent, and are both smaller than the ring width of the wheel-shaped guide groove (8); the non-molding surface of the horseshoe core (2) is also provided with an annular groove (10), and the annular groove (10) surrounds the impeller-shaped cavity (3) and does not interfere with the impeller-shaped cavity (3); The impeller-shaped cavity (3) comprises a wheel-shaped flow guide groove (8) and a blade blind hole (9) which are interconnected; the wheel-shaped flow guide groove (8) is in the form of a non-closed circular ring; the air inlet path (6) and the air outlet path (7) are respectively connected to two ends of the non-closed circular ring; and the blade blind holes (9) are evenly arranged around the circumference of the wheel-shaped flow guide groove (8).

2. The mold slider core impeller-shaped air cooling structure according to claim 1, characterized in that: The blade blind holes (9) are respectively located on both sides of the inner and outer rings of the wheel-shaped guide groove (8).

3. A mold slider core impeller-shaped air cooling structure according to any one of claims 1-2, characterized in that: The first slider (1) is provided with a first slider seat (11) for fixing a horseshoe core (2), and the second slider (4) is provided with a second slider seat (4) for fixing a second core (5).

4. The mold slider core impeller-shaped air cooling structure according to claim 3, characterized in that: The air inlet path (6) extends to the second slider seat (12), and the air inlet path (6) is connected to a compressed air source; an air nozzle (13) is provided at one air inlet end of the air inlet path (6).

5. The mold slider core impeller-shaped air cooling structure according to claim 4, characterized in that: The air outlet passage (7) extends to the seat of the second slider (4), and a silencer (14) for reducing noise is provided at one air outlet end of the air outlet passage (7).

6. The mold slider core impeller-shaped air cooling structure according to claim 5, characterized in that: The second core (5) is a straight core.

7. The mold slider core impeller-shaped air cooling structure according to claim 6, characterized in that: The second core (5) is also provided with a plurality of water channels (15), and the water channels (15) do not interfere with the air inlet channel (6) and the air outlet channel (7).

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