Exhaust sleeve for mold

Abstract

The utility model discloses an exhaust sleeve for a die, which comprises a fixed seat and a connecting piece, the die comprises an upper die, the upper die is provided with an exhaust hole, the fixed seat is arranged in the exhaust hole, and the fixed seat is provided with a through hole extending along the vertical direction; the connecting piece comprises a first connecting part, the first connecting part is detachably installed in the through hole, a first exhaust channel is arranged between the first connecting part and the inner wall of the through hole, and the first exhaust channel is communicated with the exterior of the upper portion of the fixing base and the exterior of the lower portion of the fixing base; according to the utility model, the fixed seat is arranged in the exhaust hole, the first connecting part is detachably arranged in the through hole of the fixed seat, and the first exhaust channel is arranged between the first connecting part and the inner wall of the through hole, so that gas in the cavity can be exhausted through the first exhaust channel, and when the first exhaust channel is blocked, the fixed seat does not need to be disassembled, and the cost is reduced. Only the first connecting part needs to be detached, the first connecting part and / or the through hole are / is cleaned, and detachment and cleaning are convenient.

Description

Technical Field

[0001] This utility model relates to the field of molds, and in particular to an exhaust sleeve for molds. Background Technology

[0002] In alloy casting molds, the rapid filling of the alloy liquid will inevitably cause the back pressure of the gas in the mold cavity to rise rapidly. This is not conducive to filling the mold shape and is also likely to cause defects such as porosity inside the casting. In order to enable the mold to have good venting capacity, an venting component is set in the mold. However, the existing venting component is not convenient to disassemble for cleaning. 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 a venting sleeve for a mold.

[0004] The venting sleeve for a mold of this utility model includes a fixed base and a connector. The mold includes an upper mold with a vent hole. The fixed base is installed in the vent hole and has a through hole extending in the vertical direction. The connector includes a first connecting part, which is detachably installed in the through hole. A first venting channel is provided between the first connecting part and the inner wall of the through hole. The first venting channel communicates with the outer surface above the fixed base and the outer surface below the fixed base, respectively.

[0005] The venting sleeve for molds according to this utility model has at least the following technical effects: since the fixed seat is installed in the venting hole, and the first connecting part is detachably installed in the through hole of the fixed seat, and a first venting channel is provided between the first connecting part and the inner wall of the through hole, the gas in the cavity can be discharged through the first venting channel. When the first venting channel is blocked, there is no need to disassemble the fixed seat. Only the first connecting part needs to be disassembled and the first connecting part and / or the through hole needs to be cleaned, which makes disassembly and cleaning convenient.

[0006] Furthermore, the first connecting part is threadedly connected to the through hole.

[0007] Furthermore, the connector also includes a second connecting part, the lower end of the first connecting part is fixedly connected to the upper end of the second connecting part, the diameter of the second connecting part is larger than the diameter of the first connecting part, and a second exhaust channel is provided between the top of the second connecting part and the bottom of the fixed base, the second exhaust channel communicating with the outside of the fixed base and the first exhaust channel respectively.

[0008] Furthermore, the first connecting portion includes a first connecting segment and a second connecting segment, the lower end of the first connecting segment is connected to the upper end of the second connecting segment, the first connecting segment is threadedly connected to the through hole, the sidewall of the first connecting segment has a first groove extending vertically, the second connecting segment has a spacer cavity between it and the inner wall of the through hole, and the first exhaust channel includes the first groove and the spacer cavity.

[0009] Furthermore, the bottom of the fixing base has a second groove, which is connected to the outside of the fixing base and the first exhaust channel, respectively. The second groove is the second exhaust channel.

[0010] Furthermore, the through hole includes a first hole segment, a second hole segment, and a third hole segment connected sequentially in a vertical direction. The diameter of the first hole segment is larger than the diameter of the third hole segment. The diameter of the second hole segment gradually increases from bottom to top. The diameter at the lower end of the second hole segment is the same as the diameter of the third hole segment, and the diameter at the upper end of the second hole segment is the same as the diameter of the first hole segment. The first connecting part is detachably installed in the third hole segment.

[0011] Furthermore, the vent hole is a countersunk hole;

[0012] The fixing base includes a third connecting part and a fourth connecting part. The upper end of the fourth connecting part is connected to the lower end of the third connecting part. The outer diameter of the third connecting part is larger than the outer diameter of the fourth connecting part. There is a gap between the third connecting part and the exhaust hole. The fourth connecting part abuts against the inner wall of the exhaust hole. The side wall of the fourth connecting part has a first exhaust groove. The lower end of the third connecting part, located outside the third connecting part, has a second exhaust groove that communicates with the first exhaust groove.

[0013] Furthermore, multiple first exhaust grooves and multiple second exhaust grooves are provided, and the multiple first exhaust grooves and multiple second exhaust grooves are spaced apart along the circumferential direction of the fixed base. A third exhaust groove is provided at the connection between the third connecting part and the fourth connecting part, and the first exhaust groove communicates with the second exhaust groove through the third exhaust groove.

[0014] Furthermore, the third exhaust groove is inclined and extends towards the center of the fixed base in an upward direction.

[0015] Furthermore, the first exhaust groove has a first side and a second side, and the angle between the first side and the second side is greater than 90°.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] Additional aspects and advantages of this utility model will become apparent and readily understood from the description of the technical solution in conjunction with the following drawings, wherein:

[0018] Figure 1 A schematic diagram of the structure of the exhaust sleeve installed on the mold;

[0019] Figure 2 This is a partial sectional view of the mold located at the venting sleeve;

[0020] Figure 3 This is a structural schematic diagram of the connector;

[0021] Figure 4 This is an isometric sectional view of the exhaust sleeve;

[0022] Figure 5 This is a schematic diagram of the structure at the bottom of the mounting base;

[0023] Figure 6 This is a schematic diagram of the connector being installed on the mounting base.

[0024] Figure 7 for Figure 5 Enlarged view of point A in the middle.

[0025] Reference numerals: mold 100, upper mold 110, vent hole 111, lower mold 120, fixing base 200, through hole 210, first hole segment 211, second hole segment 212, third hole segment 213, second groove 220, third connecting part 230, gap 231, second vent groove 232, fourth connecting part 240, first vent groove 241, first side surface 2411, second side surface 2412, third vent groove 250, connector 300, first connecting part 310, first connecting segment 311, first groove 3111, second connecting segment 312, spacer cavity 3121, first vent channel 320, second connecting part 330, second vent channel 340. Detailed Implementation

[0026] The technical solution of this utility model is described in detail below. Examples of the technical solution 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 technical solution described below with reference to the accompanying drawings is exemplary and is only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0029] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0030] Reference Figure 1 , 2 As shown, the exhaust sleeve provided in the embodiment of this utility model includes a fixed base 200 and a connector 300. The mold 100 includes an upper mold 110, which has an exhaust hole 111. The fixed base 200 is installed in the exhaust hole 111 and has a through hole 210 extending in the vertical direction. The connector 300 includes a first connecting part 310, which is detachably installed in the through hole 210. A first exhaust channel 320 is provided between the first connecting part 310 and the inner wall of the through hole 210. The first exhaust channel 320 communicates with the outside above the fixed base 200 and the outside below the fixed base 200, respectively.

[0031] Since the fixing seat 200 is installed in the vent hole 111, and the first connecting part 310 is detachably installed in the through hole 210 of the fixing seat 200, and a first venting channel 320 is provided between the first connecting part 310 and the inner wall of the through hole 210, the gas in the cavity can be discharged through the first venting channel 320. When the first venting channel 320 is blocked, there is no need to disassemble the fixing seat 200. Only the first connecting part 310 needs to be disassembled and the first connecting part 310 and / or the through hole 210 needs to be cleaned. Disassembly and cleaning are convenient.

[0032] Specifically, such as Figure 1As shown, the mold 100 also includes a lower mold 120, and there is a cavity between the upper mold 110 and the lower mold 120. The upper mold 110 is provided with vent holes 111 at the position corresponding to the cavity, which are respectively connected to the cavity and the outside of the upper mold 110. The fixed seat 200 is fixedly connected to the vent holes 111. The fixed connection method can be that the fixed seat 200 is welded to the vent holes 111 or fixed to the vent holes 111 by other means.

[0033] During operation, molten metal is injected into the cavity from the bottom of mold 100, such as... Figure 2 As shown, the gas inside the cavity passes through the first exhaust channel 320, passes through the upper mold 110, and is discharged to the outside of the upper mold 110. When maintaining the mold 100, the mold 100 is opened, the upper mold 110 is moved upward, the first connecting part 310 is disassembled, and the first connecting part 310 and / or the through hole 210 are inspected and cleaned. The operation is simple and convenient.

[0034] Furthermore, such as Figure 2 As shown, the first connecting part 310 is threadedly connected to the through hole 210, so that when installing or removing the connector 300, only the first connecting part 310 needs to be rotated, which facilitates disassembly and installation.

[0035] Furthermore, such as Figure 2 , 3 As shown in Figure 4, the connector 300 also includes a second connecting part 330. The lower end of the first connecting part 310 is fixedly connected to the upper end of the second connecting part 330. The diameter of the second connecting part 330 is larger than the diameter of the first connecting part 310. A second exhaust channel 340 is provided between the top of the second connecting part 330 and the bottom of the fixing base 200. The second exhaust channel 340 is connected to the outside of the fixing base 200 and the first exhaust channel 320 respectively.

[0036] By providing a second connecting part 330, the second connecting part 330 can prevent the first connecting part 310 from rotating after the first connecting part 310 is installed in place.

[0037] During operation, the gas inside the cavity is discharged to the outside of the upper mold 110 through the second exhaust channel 340 and the first exhaust channel 320 in sequence.

[0038] Specifically, the connector 300 can be a hex socket screw or other structures; during installation, the hex socket screw is placed on the through hole 210 and tightened. When tightened, the upper part of the second connector 330 abuts against the lower end of the fixing seat 200.

[0039] Furthermore, such as Figure 3 , 4As shown, the first connecting part 310 includes a first connecting section 311 and a second connecting section 312. The lower end of the first connecting section 311 is connected to the upper end of the second connecting section 312. The first connecting section 311 is threadedly connected to the through hole 210. The side wall of the first connecting section 311 has a first groove 3111 extending vertically. The second connecting section 312 has a spacer cavity 3121 between it and the inner wall of the through hole 210. The first exhaust channel 320 includes the first groove 3111 and the spacer cavity 3121.

[0040] By providing a spacer 3121 to create a clearance, the internal hexagon screws can be easily tightened into place.

[0041] During operation, the gas inside the cavity is discharged to the outside of the upper mold 110 through the second exhaust channel 340, the spacer cavity 3121 and the first groove 3111 in sequence.

[0042] Specifically, the outer diameter of the second connecting section 312 is smaller than the inner diameter of the inner wall of the through hole 210 located at the second connecting section 312, thereby forming a spacer cavity 3121 between the two.

[0043] Specifically, such as Figure 3 As shown, there can be a plurality of first grooves 3111; when there are multiple first grooves 3111, the multiple first grooves 3111 are distributed at intervals along the circumferential direction of the first connecting segment 311.

[0044] Furthermore, such as Figure 4 , 5 As shown in Figure 6, the bottom of the fixing base 200 has a second groove 220, which is connected to the outside of the fixing base 200 and the first exhaust channel 320 respectively. The second groove 220 is the second exhaust channel 340.

[0045] By providing a second groove 220, a second exhaust channel 340 is formed between the lower end of the fixing seat 200 and the second connecting part 330.

[0046] Specifically, such as Figure 5 As shown, there can be several second grooves 220; when there are multiple second grooves 220, multiple first grooves 3111 are distributed at intervals along the circumferential direction of the fixed base 200; for example, there are four second grooves 220, which are arranged in a cross shape and connected to each other. This arrangement makes it easier for gas to enter the first exhaust channel 320.

[0047] Specifically, the second groove 220 is a planar groove to facilitate processing and cleaning after blockage.

[0048] Specifically, the recess depth of the second groove 220 or the distance between the bottom surface of the second groove 220 and the lower end of the fixing seat 200 is 0.1mm-0.2mm.

[0049] Furthermore, such as Figure 4 As shown, the through hole 210 includes a first hole segment 211, a second hole segment 212, and a third hole segment 213 connected sequentially in the vertical direction. The diameter of the first hole segment 211 is larger than the diameter of the third hole segment 213. The diameter of the second hole segment 212 gradually increases from bottom to top. The diameter at the lower end of the second hole segment 212 is the same as the diameter of the third hole segment 213, and the diameter at the upper end of the second hole segment 212 is the same as the diameter of the first hole segment 211. The first connecting part 310 is detachably installed in the third hole segment 213.

[0050] The through hole 210 adopts this structure, which facilitates processing and also facilitates venting.

[0051] Since the diameter of the first hole section 211 is larger than that of the third hole section 213, the space is increased when the gas is discharged into the first hole section 211, which facilitates the exhaust and reduces the machining depth of the thread in the third hole section 213, thus reducing the machining difficulty.

[0052] Specifically, a portion of the third hole section 213 is threadedly connected to a portion of the first connecting section 311, and another portion of the third hole section 213 forms a spacer cavity 3121 with another portion of the first connecting section 311. The third hole section 213 is provided to facilitate cooperation with the first connecting part 310 to form a clearance space and a first exhaust channel 320.

[0053] It is conceivable that the through hole 210 may also include a first hole segment 211 and a third hole segment 213 connected sequentially in the vertical direction. The diameter of the first hole segment 211 is larger than the diameter of the third hole segment 213. The lower end of the first hole segment 211 is directly connected to the upper end of the third hole segment 213, thus eliminating the structure of the second hole segment 212.

[0054] Furthermore, such as Figure 2 As shown, vent 111 is a countersunk hole;

[0055] The fixing base 200 includes a third connecting portion 230 and a fourth connecting portion 240. The upper end of the fourth connecting portion 240 is connected to the lower end of the third connecting portion 230. The outer diameter of the third connecting portion 230 is larger than the outer diameter of the fourth connecting portion 240. A gap 231 exists between the third connecting portion 230 and the vent hole 111. The fourth connecting portion 240 abuts against the inner wall of the vent hole 111. Figure 5 As shown, the side wall of the fourth connecting part 240 has a first exhaust groove 241, and the lower end of the third connecting part 230 has a second exhaust groove 232 that communicates with the first exhaust groove 241 at a position outside the third connecting part 230.

[0056] like Figure 2 As shown, by providing a first venting groove 241 and a second venting groove 232, and a gap 231 between the third connecting part 230 and the venting hole 111, a portion of the gas in the cavity can be discharged to the outside of the upper mold 110 through the first venting groove 241, the second venting groove 232 and the gap 231 between the third connecting part 230 and the venting hole 111 in sequence. Another portion of the gas in the cavity can be discharged to the outside of the upper mold 110 through the second venting channel 340 and the first venting channel 320. Since the gas can be discharged through two channels, the venting volume is increased and the venting is reliable.

[0057] Specifically, the third connecting part 230 is located on the inner wall of the large diameter of the recessed hole, and the fourth connecting part 240 is located on the inner wall of the small diameter of the recessed hole.

[0058] Furthermore, such as Figure 6 As shown, multiple first exhaust grooves 241 and multiple second exhaust grooves 232 are provided. Multiple first exhaust grooves 241 and multiple second exhaust grooves 232 are spaced apart along the circumferential direction of the fixed base 200. A ring of third exhaust grooves 250 is provided at the connection between the third connecting part 230 and the fourth connecting part 240. The first exhaust groove 241 is connected to the second exhaust groove 232 through the third exhaust groove 250.

[0059] By providing a third exhaust groove 250, the gas in the multiple first exhaust grooves 241 can be gathered on the third exhaust groove 250, and then the gas is distributed to the multiple second exhaust grooves 232 by the third exhaust groove 250 to increase the exhaust volume. When combined with the structure of the first exhaust channel 320 and the second exhaust channel 340, the mold 100 can have good exhaust capacity, can discharge a large flow of gas instantly, and can maintain strong exhaust stability for a long time during the production process.

[0060] Furthermore, such as Figure 2 As shown, the third exhaust groove 250 slopes upwards and extends towards the center of the fixed base 200. This facilitates machining and ensures increased exhaust volume.

[0061] Furthermore, such as Figure 7 As shown, the first exhaust groove 241 has a first side 2411 and a second side 2412, and the angle between the first side 2411 and the second side 2412 is greater than 90°, that is, the shape of the first exhaust groove 241 is V-shaped. With this structure, it is not easy to get clogged, and even if it does get clogged, it is easy to clean.

[0062] Specifically, the depth of the first exhaust groove 241 can be 0.5mm-1mm. With this size, it is not easy to get clogged, and even if it does get clogged, it is easy to clean.

[0063] It is conceivable that the first exhaust groove 241 can be a flat groove or other shapes.

[0064] Specifically, such as Figure 2 As shown, the diameter of the second connecting part 330 is smaller than the diameter of the fourth connecting part 240 (the diameter of the bottom part of the fixing seat 200), which facilitates the entry of gas into the second exhaust channel 340.

[0065] Although the technical solutions of this utility model have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these technical solutions without departing from the principles and spirit of this utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A venting sleeve for a mold, the mold comprising an upper mold having venting holes, characterized in that, include: A fixing seat is installed in the vent hole, and the fixing seat has a through hole extending in the vertical direction; The connector includes a first connecting part, which is detachably installed in the through hole. A first exhaust channel is provided between the first connecting part and the inner wall of the through hole. The first exhaust channel communicates with the outside above the fixed base and the outside below the fixed base, respectively.

2. The venting sleeve for a mold according to claim 1, characterized in that: The first connecting part is threadedly connected to the through hole.

3. The venting sleeve for a mold according to claim 2, characterized in that: The connector further includes a second connecting part, the lower end of the first connecting part is fixedly connected to the upper end of the second connecting part, the diameter of the second connecting part is larger than the diameter of the first connecting part, and a second exhaust channel is provided between the top of the second connecting part and the bottom of the fixed base, the second exhaust channel communicating with the outside below the fixed base and the first exhaust channel respectively.

4. The venting sleeve for a mold according to claim 3, characterized in that: The first connecting part includes a first connecting segment and a second connecting segment. The lower end of the first connecting segment is connected to the upper end of the second connecting segment. The first connecting segment is threadedly connected to the through hole. The side wall of the first connecting segment has a first groove extending vertically. The second connecting segment and the inner wall of the through hole have a spacer cavity. The first exhaust channel includes the first groove and the spacer cavity.

5. The venting sleeve for a mold according to claim 3 or 4, characterized in that: The bottom of the fixing base has a second groove, which is connected to the outside of the fixing base and the first exhaust channel, respectively. The second groove is the second exhaust channel.

6. The venting sleeve for a mold according to any one of claims 1 to 4, characterized in that: The through hole includes a first hole segment, a second hole segment, and a third hole segment connected sequentially in a vertical direction. The diameter of the first hole segment is larger than the diameter of the third hole segment. The diameter of the second hole segment gradually increases from bottom to top. The diameter at the lower end of the second hole segment is the same as the diameter of the third hole segment, and the diameter at the upper end of the second hole segment is the same as the diameter of the first hole segment. The first connecting part is detachably installed in the third hole segment.

7. The venting sleeve for a mold according to claim 1, characterized in that: The exhaust port is a countersunk hole; The fixing base includes a third connecting part and a fourth connecting part. The upper end of the fourth connecting part is connected to the lower end of the third connecting part. The outer diameter of the third connecting part is larger than the outer diameter of the fourth connecting part. There is a gap between the third connecting part and the exhaust hole. The fourth connecting part abuts against the inner wall of the exhaust hole. The side wall of the fourth connecting part has a first exhaust groove. The lower end of the third connecting part, located outside the third connecting part, has a second exhaust groove that communicates with the first exhaust groove.

8. The venting sleeve for a mold according to claim 7, characterized in that: Multiple first exhaust grooves and multiple second exhaust grooves are provided. The multiple first exhaust grooves and multiple second exhaust grooves are spaced apart along the circumferential direction of the fixed base. A third exhaust groove is provided at the connection between the third connecting part and the fourth connecting part. The first exhaust groove is connected to the second exhaust groove through the third exhaust groove.

9. The venting sleeve for a mold according to claim 8, characterized in that: The third exhaust groove slopes upwards and extends towards the center of the fixed base.

10. The venting sleeve for a mold according to claim 7, characterized in that: The first exhaust groove has a first side and a second side, and the angle between the first side and the second side is greater than 90°.

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