Exhaust sleeve for mold

Abstract

The exhaust sleeve comprises a fixing seat and a connecting piece, the mold comprises an upper mold, the upper mold is provided with an exhaust hole, the fixing seat is installed in the exhaust hole, and the fixing seat is provided with a through hole extending in 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; the fixing seat is mounted in the exhaust hole, the first connecting part is detachably mounted in the through hole of the fixing 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 fixing seat does not need to be detached, 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] The invention relates to the field of molds, and in particular to an exhaust sleeve for a mold. Background Art

[0002] In alloy casting molds, the rapid filling of alloy liquid will inevitably cause the back pressure of the gas in the mold cavity to rise rapidly, which is not conducive to the filling of the shape and is also likely to cause defects such as pores inside the casting. In order to make the mold have good exhaust capacity, an exhaust component is provided in the mold. The existing exhaust component is not convenient to disassemble for cleaning. Summary of the invention

[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 provides an exhaust sleeve for a mold.

[0004] The exhaust sleeve for a mold of the present invention comprises a fixing seat and a connecting piece, wherein the mold comprises an upper mold, the upper mold has an exhaust hole, the fixing seat is installed in the exhaust hole, and the fixing seat has a through hole extending in the up and down directions; the connecting piece comprises a first connecting portion, the first connecting portion is detachably installed in the through hole, a first exhaust channel is arranged between the first connecting portion and the inner wall of the through hole, and the first exhaust channel is respectively connected to the outside above the fixing seat and the outside below the fixing seat. The exhaust sleeve for the mold according to the present invention has at least the following technical effects: since the fixed seat is installed in the exhaust hole, and the first connecting part is detachably installed in the through hole of the fixed seat, and a first exhaust 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 exhaust channel. When the first exhaust channel is blocked, there is no need to disassemble the fixed seat, but only the first connecting part needs to be disassembled to clean the first connecting part and / or the through hole, which makes disassembly and cleaning convenient.

[0005] Furthermore, the first connecting portion is threadedly connected to the through hole.

[0006] Furthermore, the connecting member 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 fixing seat, and the second exhaust channel is respectively connected to the outside below the fixing seat and the first exhaust channel. Furthermore, the first connecting portion includes a first connecting section and a second connecting section, the lower end of the first connecting section is connected to the upper end of the second connecting section, the first connecting section is threadedly connected to the through hole, the side wall of the first connecting section has a first groove extending up and down, and there is a partition cavity between the second connecting section and the inner wall of the through hole, and the first exhaust channel includes the first groove and the partition cavity.

[0007] Furthermore, the bottom of the fixing seat has a second groove, the second groove is connected to the outside below the fixing seat and the first exhaust channel respectively, and the second groove is the second exhaust channel.

[0008] Furthermore, the through hole includes a first hole segment, a second hole segment and a third hole segment connected in sequence along the up and down directions, 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, the diameter at the upper end of the second hole segment is the same as the diameter of the first hole segment, and the first connecting portion is detachably installed in the third hole segment.

[0009] Further, the exhaust hole is a sink hole; The fixing seat 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, a gap is provided 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, and the lower end of the third connecting part is located outside the third connecting part and has a second exhaust groove connected to the first exhaust groove.

[0010] Furthermore, a plurality of the first exhaust grooves and a plurality of the second exhaust grooves are provided, and the plurality of the first exhaust grooves and the plurality of the second exhaust grooves are arranged at intervals along the circumferential direction of the fixing seat. A circle of third exhaust grooves is provided at the connection between the third connecting part and the fourth connecting part, and the first exhaust groove is connected to the second exhaust groove through the third exhaust groove.

[0011] Furthermore, the third exhaust groove is inclined and extends from bottom to top toward the middle of the fixing seat.

[0012] Furthermore, the first exhaust groove has a first side surface and a second side surface, and an angle between the first side surface and the second side surface is greater than 90°.

[0013] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Additional aspects and advantages of the present invention will become apparent and easily understood from the description of the technical solution in conjunction with the following drawings, in which: Figure 1 It is a schematic diagram of the structure of the exhaust sleeve installed on the mold; Figure 2 It is a partial cross-sectional view of the mold at the exhaust sleeve; Figure 3 is a structural schematic diagram of a connecting piece; Figure 4 is an axonometric cross-sectional view of the exhaust sleeve; Figure 5 It is a structural schematic diagram of the bottom of the fixed seat; Figure 6 It is a structural schematic diagram of the connecting piece installed on the fixing seat; Figure 7 for Figure 5 Enlarged view of point A in the middle.

[0015] Figure markings: mold 100, upper mold 110, exhaust hole 111, lower mold 120, fixed seat 200, through hole 210, first hole section 211, second hole section 212, third hole section 213, second groove 220, third connecting part 230, gap 231, second exhaust groove 232, fourth connecting part 240, first exhaust groove 241, first side 2411, second side 2412, third exhaust groove 250, connecting piece 300, first connecting part 310, first connecting section 311, first groove 3111, second connecting section 312, partition cavity 3121, first exhaust channel 320, second connecting part 330, second exhaust channel 340. DETAILED DESCRIPTION

[0016] The technical solution of the present invention is described in detail below, and examples of the technical solution are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The technical solution described below with reference to the accompanying drawings is exemplary and is only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] Reference Figure 1 , 2 As shown, the exhaust sleeve provided in the embodiment of the present invention includes a fixing seat 200 and a connecting piece 300, the mold 100 includes an upper mold 110, the upper mold 110 has an exhaust hole 111, the fixing seat 200 is installed in the exhaust hole 111, and the fixing seat 200 has a through hole 210 extending in the up and down directions; the connecting piece 300 includes a first connecting portion 310, the first connecting portion 310 is detachably installed in the through hole 210, a first exhaust channel 320 is arranged between the first connecting portion 310 and the inner wall of the through hole 210, and the first exhaust channel 320 is respectively connected to the outside above the fixing seat 200 and the outside below the fixing seat 200.

[0021] Since the fixing seat 200 is installed in the exhaust hole 111, and the first connecting part 310 is detachably installed in the through hole 210 of the fixing seat 200, and a first exhaust 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 exhaust channel 320. When the first exhaust channel 320 is blocked, there is no need to disassemble the fixing seat 200, but only the first connecting part 310 needs to be disassembled to clean the first connecting part 310 and / or the through hole 210, which makes disassembly and cleaning convenient.

[0022] Specifically, Figure 1 As shown, the mold 100 further includes a lower mold 120, a cavity is provided between the upper mold 110 and the lower mold 120, and a vent 111 which is respectively connected to the cavity and the outside of the upper mold 110 is provided at a position of the upper mold 110 corresponding to the cavity, and the fixing seat 200 is fixedly connected to the vent 111, and the fixing connection method can be that the fixing seat 200 is welded to the vent 111 or fixed to the vent 111 by other methods; During operation, the molten metal is injected into the cavity from the bottom of the mold 100. Figure 2As shown, the gas in the cavity passes through the upper mold 110 through the first exhaust channel 320 and is discharged to the outside of the upper mold 110. When the mold 100 is maintained, 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 checked and cleaned. The operation is simple and convenient.

[0023] Furthermore, if Figure 2 As shown, the first connection portion 310 is threadedly connected to the through hole 210, so that when installing and removing the connecting member 300, only the first connection portion 310 needs to be rotated, which is convenient for disassembly and installation.

[0024] Furthermore, if Figure 2 , 3 As shown in Figures 4 and 5, the connecting member 300 also includes a second connecting portion 330, the lower end of the first connecting portion 310 is fixedly connected to the upper end of the second connecting portion 330, the diameter of the second connecting portion 330 is larger than the diameter of the first connecting portion 310, and a second exhaust channel 340 is provided between the top of the second connecting portion 330 and the bottom of the fixing seat 200, and the second exhaust channel 340 is respectively connected to the outside below the fixing seat 200 and the first exhaust channel 320. By providing the second connection portion 330 , after the first connection portion 310 is installed in place, the second connection portion 330 can prevent the first connection portion 310 from rotating.

[0025] During operation, the gas in 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.

[0026] Specifically, the connecting member 300 can be a hexagon socket screw or other structures; during installation, the hexagon socket screw is placed on the through hole 210 and tightened. When tightened, the upper end of the second connecting part 330 abuts against the lower end of the fixing seat 200.

[0027] Furthermore, if Figure 3 , 4 As shown, the first connecting portion 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 up and down, and a partition cavity 3121 is provided between the second connecting section 312 and the inner wall of the through hole 210, and the first exhaust channel 320 includes the first groove 3111 and the partition cavity 3121.

[0028] By providing the spacing cavity 3121 to form a space to avoid gaps, the hexagon socket screw can be easily screwed into place.

[0029] During operation, the gas in the cavity is discharged to the outside of the upper mold 110 through the second exhaust channel 340 , the partition cavity 3121 and the first groove 3111 in sequence.

[0030] 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 at the second connecting section 312 , thereby forming a spacing cavity 3121 therebetween.

[0031] Specifically, Figure 3 As shown, there may be a plurality of first grooves 3111 ; when there are a plurality of first grooves 3111 , the plurality of first grooves 3111 are spaced apart and distributed along the circumferential direction of the first connecting section 311 .

[0032] Furthermore, if Figure 4 , 5 As shown in FIGS. 6 and 7 , the bottom of the fixing seat 200 has a second groove 220 , and the second groove 220 is respectively connected to the outside below the fixing seat 200 and the first exhaust channel 320 , and the second groove 220 is the second exhaust channel 340 .

[0033] The second groove 220 is provided to form a second exhaust passage 340 between the lower end of the fixing base 200 and the second connecting portion 330 .

[0034] Specifically, Figure 5 As shown, there can be several second grooves 220; when there are multiple second grooves 220, multiple first grooves 3111 are spaced apart along the circumferential direction of the fixing seat 200; for example, there are four second grooves 220, and the four second grooves 220 are distributed in a cross shape and two adjacent second grooves 220 are connected. Such an arrangement is adopted to make it easy for gas to enter the first exhaust channel 320.

[0035] Specifically, the second groove 220 is a planar groove to facilitate processing and cleaning after clogging.

[0036] Specifically, the recessed 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 0.1 mm-0.2 mm.

[0037] Furthermore, if 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 which are sequentially connected in the up-down direction. The diameter of the first hole segment 211 is greater 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. 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 portion 310 is detachably installed in the third hole segment 213.

[0038] The through hole 210 adopts such a structure, which is convenient for processing and exhaust.

[0039] Since the diameter of the first hole segment 211 is greater than that of the third hole segment 213 , the space is increased when the gas is discharged to the first hole segment 211 , which is convenient for exhaust and can reduce the processing depth of the thread of the third hole segment 213 , thereby reducing the processing difficulty.

[0040] Specifically, a portion of the third hole segment 213 is threadedly connected to a portion of the first connecting segment 311, and a spacing cavity 3121 is formed between another portion of the third hole segment 213 and another portion of the first connecting segment 311. The third hole segment 213 is provided to facilitate cooperation with the first connecting portion 310 to form an avoidance position and a first exhaust channel 320.

[0041] It is conceivable that the through hole 210 may also include a first hole segment 211 and a third hole segment 213 connected in sequence along the up and down directions, the diameter of the first hole segment 211 is larger than the diameter of the third hole segment 213, and the lower end of the first hole segment 211 is directly connected to the upper end of the third hole segment 213, that is, the structure of the second hole segment 212 is cancelled.

[0042] Furthermore, if Figure 2 As shown, the exhaust hole 111 is a sink hole; 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 greater than the outer diameter of the fourth connecting portion 240. There is a gap 231 between the third connecting portion 230 and the exhaust hole 111. The fourth connecting portion 240 abuts against the inner wall of the exhaust hole 111. Figure 5 As shown, the side wall of the fourth connection part 240 has a first exhaust groove 241 , and the lower end of the third connection part 230 located outside the third connection part 230 has a second exhaust groove 232 communicating with the first exhaust groove 241 .

[0043] like Figure 2 As shown, by providing the first exhaust groove 241 and the second exhaust groove 232, and the gap 231 between the third connecting portion 230 and the exhaust hole 111, a part of the gas in the cavity can be discharged to the outside of the upper mold 110 through the first exhaust groove 241, the second exhaust groove 232 and the gap 231 between the third connecting portion 230 and the exhaust hole 111 in sequence, and another part of the gas in the cavity can be discharged to the outside of the upper mold 110 through the second exhaust channel 340 and the first exhaust channel 320; since the gas can be discharged through two channels, the exhaust volume is increased and the exhaust is reliable.

[0044] Specifically, the third connection portion 230 is located on the inner wall of the countersunk hole with a large aperture, and the fourth connection portion 240 is located on the inner wall of the countersunk hole with a small aperture.

[0045] Furthermore, if Figure 6 As shown, a plurality of first exhaust grooves 241 and a plurality of second exhaust grooves 232 are provided, and the plurality of first exhaust grooves 241 and the plurality of second exhaust grooves 232 are spaced apart along the circumferential direction of the fixing seat 200, and a circle of third exhaust grooves 250 is provided at the connection between the third connecting portion 230 and the fourth connecting portion 240, and the first exhaust grooves 241 are connected to the second exhaust grooves 232 through the third exhaust grooves 250.

[0046] By providing the 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 third exhaust groove 250 distributes the gas to the multiple second exhaust grooves 232 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 and can instantly discharge a large gas flow rate. At the same time, it can maintain strong exhaust stability for a long time during the production process.

[0047] Furthermore, if Figure 2 As shown, the third exhaust groove 250 is inclined and extends from bottom to top toward the middle of the fixing base 200 to facilitate processing and ensure increased exhaust volume.

[0048] Furthermore, if Figure 7 As shown, the first exhaust groove 241 has a first side surface 2411 and a second side surface 2412, and the angle between the first side surface 2411 and the second side surface 2412 is greater than 90 degrees, that is, the shape of the first exhaust groove 241 is V-shaped. With such a structure, it is not easy to be blocked, and it is also convenient to clean even if it is blocked.

[0049] Specifically, the depth of the first exhaust groove 241 may be 0.5 mm to 1 mm. With such a size, the first exhaust groove 241 is not easily clogged and is convenient to clean even if it is clogged.

[0050] It is conceivable that the first exhaust groove 241 may be a planar groove or may have other shapes.

[0051] Specifically, Figure 2 As shown, the diameter of the second connection portion 330 is smaller than the diameter of the fourth connection portion 240 (the diameter of the bottom portion of the fixing seat 200 ), thereby facilitating the gas to enter the second exhaust channel 340 .

[0052] Although the technical solutions of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the technical solutions without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A vent sleeve for a mold, the mold comprising an upper mold, the upper mold having a vent hole, characterized in that: include: A fixing seat, installed in the exhaust hole, the fixing seat having a through hole extending in the up-down direction; The connecting member includes a first connecting part, which is detachably installed in the through hole, and 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 respectively connected to the outside above the fixing seat and the outside below the fixing seat.

2. The exhaust sleeve for a mold according to claim 1, characterized in that: The first connection portion is threadedly connected to the through hole.

3. The exhaust sleeve for a mold according to claim 2, characterized in that: The connecting member also includes a second connecting portion, the lower end of the first connecting portion is fixedly connected to the upper end of the second connecting portion, the diameter of the second connecting portion is larger than the diameter of the first connecting portion, and a second exhaust channel is provided between the top of the second connecting portion and the bottom of the fixing seat, and the second exhaust channel is respectively connected to the outside below the fixing seat and the first exhaust channel.

4. The exhaust sleeve for a mold according to claim 3, characterized in that: The first connecting portion includes a first connecting section and a second connecting section, the lower end of the first connecting section is connected to the upper end of the second connecting section, the first connecting section is threadedly connected to the through hole, the side wall of the first connecting section has a first groove extending up and down, and there is a partition cavity between the second connecting section and the inner wall of the through hole, and the first exhaust channel includes the first groove and the partition cavity.

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

6. The exhaust 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 in sequence along the up and down direction, the diameter of the first hole segment is greater 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, the diameter at the upper end of the second hole segment is the same as the diameter of the first hole segment, and the first connecting portion is detachably installed in the third hole segment.

7. The exhaust sleeve for a mold according to claim 1, characterized in that: The exhaust hole is a sink hole; The fixing seat 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, a gap is provided 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, and the lower end of the third connecting part is located outside the third connecting part and has a second exhaust groove connected to the first exhaust groove.

8. The exhaust sleeve for a mold according to claim 7, characterized in that: A plurality of the first exhaust grooves and a plurality of the second exhaust grooves are provided, and the plurality of the first exhaust grooves and the plurality of the second exhaust grooves are arranged at intervals along the circumferential direction of the fixing seat. A circle of third exhaust grooves is provided at the connection between the third connecting part and the fourth connecting part, and the first exhaust groove is connected with the second exhaust groove through the third exhaust groove.

9. The exhaust sleeve for a mold according to claim 8, characterized in that: The third exhaust groove is inclined and extends from bottom to top toward the middle of the fixing seat.

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

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