Riser capable of preventing glue from being blocked
By designing glue grooves and glue grooves on the top of the port, the problem of being easily squeezed into the exhaust pores by cast glue is solved, and the effect of preventing blockage and improving adhesion is achieved, and the safety and quality of the casting process are ensured.
Patent Information
- Application Number
- CN202420307025.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-19
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-02-19
AI Technical Summary
During the casting process, in the prior art, when casting glue is applied to the top of the riser or the bottom of the exhaust needle, it is easy to cause the casting glue to be squeezed into the exhaust hole, causing blockage, affecting the exhaust function of the riser and posing safety hazards.
Design a kind of anti -gum -proof and jacket, including a gel groove with glue groove along the top of the outlet, and a glue groove with a groove with glue groove on the top. The glue groove was squeezed and the overflowing glue was squeezed to the gum groove, and the glue was limited to enter the exhaust hole.
Effectively prevent casting glue from entering the exhaust holes, ensuring the exhaust function of the output, reducing safety hazards, and improving the adhesion of glue, and enhancing the sealing of the exhaust needle and the output.
Smart Images
Figure CN222403322U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a riser that can prevent glue from blocking it, and belongs to the technical field of casting risers. Background Art
[0002] In the casting field, sand casting is a commonly used casting method. Products ranging from tens of grams to hundreds of tons are cast using sand casting. In casting, risers are an indispensable part of the casting process. Riser plays the role of shrinkage compensation, exhaust and slag collection in the casting process, and is also very helpful in producing high-quality products.
[0003] At present, in sand casting, an exhaust hole is often opened on the top of the riser to exhaust the gas in the cavity. In order to ensure that the exhaust hole is flush with or higher than the pouring cup in the casting process, an exhaust needle is set on the top of the riser, and the height of the exhaust needle is used to ensure that it is flush with or higher than the pouring cup.
[0004] In the prior art, in order to install the exhaust needle on the top of the riser, the exhaust needle and the riser are bonded by using casting glue. In actual operation, firstly, the casting glue is applied to the top of the riser or the bottom of the exhaust needle, and then the two are bonded. However, during bonding, due to the mutual fit and extrusion of the two, the casting glue is easily squeezed toward the exhaust hole of the riser, and the excess casting glue will be squeezed into the exhaust hole, thereby blocking the exhaust hole of the riser, affecting the exhaust function of the riser, and causing the quality of the casting to decrease. And when the casting glue blocks the exhaust hole of the riser, the casting liquid will instantly explode when it contacts the casting glue during the later pouring, which poses a great safety hazard. At the same time, this type of bonding method will increase the amount of glue due to the overflow of the casting glue into the exhaust hole.
[0005] In order to solve the above technical problems, in the prior art, a concave-convex groove structure is set on the contact surface between the top of the riser and the bottom of the exhaust needle, and casting glue is applied in the groove. However, when installing the exhaust needle, the casting glue will still be squeezed into the exhaust hole, and even the residual air in the groove will not be able to be discharged due to the concave-convex groove structure, resulting in bubbles in the casting glue and producing voids, causing the adhesion between the exhaust needle and the riser to decrease, resulting in a poor seal, which will still affect the subsequent pouring of the riser. Therefore, there is an urgent need for a riser that prevents glue from clogging, so as to solve the problem in the prior art that when the exhaust needle is installed on the top of the riser by applying casting glue on the top of the riser or the bottom of the exhaust needle, the casting glue is easily squeezed into the exhaust hole to cause blockage, affecting the exhaust of the riser and posing a safety hazard. Utility Model Content
[0006] The utility model aims to provide a riser that prevents glue from clogging, so as to solve the problems raised in the above-mentioned background technology.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a riser that prevents glue from clogging, comprising a riser body; the riser body is a structure that is closed at the top, open at the bottom and hollow inside, and a through exhaust hole is provided at the top closed end; a glue coating groove is provided at the top of the riser body along the outside of the exhaust hole for applying casting glue; a glue overflow groove is provided at the top of the riser body in a direction away from the exhaust hole, and the glue overflow groove is connected to the glue coating groove; when the exhaust needle is installed at the top of the riser body, the casting glue is squeezed to fill the glue coating groove, and the overflowed casting glue is squeezed toward the overflow glue groove to limit the casting glue from flowing toward the exhaust hole.
[0008] Specifically, the riser body is a vertically penetrating cylinder with a gradually changing diameter, the exhaust needle is installed on the top of the small diameter end of the riser body, and the internal exhaust hole of the exhaust needle is connected to the exhaust hole of the riser body.
[0009] Specifically, a pressure relief groove is provided at a middle position of the top closed end inside the riser body, and the exhaust hole of the riser body passes through the pressure relief groove.
[0010] Specifically, the glue coating groove is a circular ring-shaped groove structure.
[0011] Specifically, the annular groove of the glue coating groove includes two relatively parallel annular groove walls and a groove bottom perpendicular to the annular groove walls, and the groove wall adjacent to the exhaust hole is defined as the first groove wall, and the groove wall away from the exhaust hole is defined as the second groove wall.
[0012] Specifically, the groove wall area of the second groove wall of the riser body near the groove top extends in the horizontal direction away from the exhaust hole, and a groove structure is formed at the top of the riser body, one end of which is connected to the glue coating groove and the other end extends away from the exhaust hole to form an overflow glue groove, and the radial dimension of the groove wall area of the second groove wall near the groove top is defined as the groove depth of the overflow glue groove. The present application forms an overflow glue groove by opening a groove on the groove wall on the side of the glue coating groove away from the exhaust hole, that is, the second groove wall, in the direction away from the exhaust hole, so as to achieve that when the exhaust needle is installed on the top of the riser, the exhaust needle squeezes the casting glue in the glue coating groove to first fill the glue coating groove, and squeezes all the remaining air in the groove out of the groove, and squeezes the excess casting glue toward the overflow groove, so that the excess casting glue will not enter the exhaust hole. At the same time, the casting glue in the glue coating groove fills and bonds the exhaust needle and the riser, and there is no air inside the casting glue, which can improve the bonding strength of the casting glue.
[0013] Specifically, the depth of the overflow glue groove is 1 / 3 of the depth of the glue coating groove. This arrangement can form a step-like structure between the overflow glue groove and the glue coating groove, so that when the exhaust needle is installed, an overflow glue channel is formed between the exhaust needle and the overflow glue groove, so that the casting glue is squeezed and first fills the glue coating groove, and the excess casting glue overflows from the overflow glue channel to the overflow glue groove.
[0014] Specifically, the overflow glue groove extends horizontally in a direction away from the exhaust hole, at least to the outside of the positive projection area of the exhaust needle on the top of the riser body. This arrangement ensures that after the exhaust needle is installed on the top of the riser, there is always a gap between the exhaust needle and the overflow glue groove to form an overflow glue channel, which facilitates the discharge of excess casting glue and residual air through the overflow glue channel, and will not be trapped in the contact surface between the exhaust needle and the riser, thereby achieving effective bonding between the exhaust needle and the riser.
[0015] Specifically, the overflow groove extends horizontally in a direction away from the exhaust hole to an outer side edge of the top of the riser body.
[0016] Specifically, the riser body is made of any one of silica sand, heating material and water glass.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] The present application provides a glue coating groove on the outside of the exhaust hole at the top of the riser body for applying casting glue, and provides an overflow glue groove connected to the glue coating groove at the top of the riser body in a direction away from the exhaust needle, so that when the exhaust needle is installed on the top of the riser body, the exhaust needle squeezes the casting glue to fill the glue coating groove, and squeezes the overflowed casting glue in the direction of the overflow glue groove to limit the casting glue from flowing in the exhaust hole. This solves the problem in the prior art of preventing the casting glue from overflowing into the exhaust hole of the riser when the exhaust needle is bonded to the top of the riser. The present application provides a groove with a special shape at the top of the riser, so that the exhaust needle can be bonded to the top of the riser by applying casting glue.
[0019] On the basis of the above, the glue coating groove of the present application is a circular groove structure, and the glue coating groove includes two relatively parallel circular groove walls to form a first groove wall near the exhaust hole side, a second groove wall away from the exhaust hole side, and a groove bottom perpendicular to the circular groove wall. The present application grooves the groove wall area near the groove top of the second groove wall of the riser body in the horizontal direction away from the exhaust hole, and forms a groove structure at the top of the riser body, one end of which is connected to the glue coating groove and the other end extends away from the exhaust hole to form an overflowing glue groove. When the exhaust needle is installed on the top of the riser, the exhaust needle squeezes the casting glue in the glue coating groove to first fill the glue coating groove, and squeezes all the remaining air in the groove out of the groove, and squeezes the excess overflowing casting glue in the overflow groove direction, so that the excess casting glue will not enter the exhaust hole.
[0020] On the basis of the above, the depth of the overflow glue groove is 1 / 3 of the groove depth of the glue coating groove, and the overflow glue groove extends horizontally in the direction away from the exhaust hole, at least to the outside of the positive projection area of the exhaust needle on the top of the riser body. After the exhaust needle is installed on the top of the riser, there is always a gap between the exhaust needle and the overflow glue groove to form an overflow glue channel, which is convenient for the excess casting glue and residual air to be discharged through the overflow glue channel, and will not be trapped in the contact surface between the exhaust needle and the riser, so as to achieve effective bonding between the exhaust needle and the riser. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the installation of the anti-glue clogging riser and the exhaust needle of the utility model;
[0022] Figure 2 for Figure 1 Sectional view at AA;
[0023] Figure 3 This is a schematic structural diagram (1) of the riser to prevent glue from clogging in this embodiment;
[0024] Figure 4 This is a schematic structural diagram (2) of the riser to prevent glue from clogging in this embodiment;
[0025] Figure 5 for Figure 3 Sectional view at BB in the figure.
[0026] The markings in the figure are: 1. riser body; 2. glue coating groove; 3. glue overflow groove; 4. exhaust needle; 5. casting glue; 6. pressure relief groove; 7. exhaust hole; 8. exhaust hole. DETAILED DESCRIPTION
[0027] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model. The riser body of this embodiment is made of any one of silica sand, heating material and water glass.
[0028] See also Figure 1-Figure 5 The present embodiment discloses a riser that prevents glue from clogging, comprising a riser body 1; the riser body is a hollow structure with a closed top and an open bottom, and a through exhaust hole 7 is provided at the top closed end; a glue coating groove 2 is provided at the top of the riser body along the outer side of the exhaust hole for applying casting glue 5; a glue overflow groove 3 is provided at the top of the riser body in a direction away from the exhaust hole, and the glue overflow groove is connected with the glue coating groove; when the exhaust needle 4 is installed at the top of the riser body, the casting glue is squeezed to fill the glue coating groove, and the overflowed casting glue is squeezed toward the overflow glue groove to limit the casting glue from flowing toward the exhaust hole.
[0029] The riser body 1 of this embodiment is a through-tube body with a gradually changing diameter, the exhaust needle 4 is installed at the top of the small diameter end of the riser body, and the internal exhaust hole 8 of the exhaust needle is connected with the exhaust hole of the riser body. A pressure relief groove 6 is provided inside the riser body at the middle position of the top closed end, and the exhaust hole of the riser body passes through the pressure relief groove.
[0030] In addition, the glue coating groove 2 of the present embodiment is a circular groove structure. The glue coating groove includes two relatively parallel circular groove walls and a groove bottom perpendicular to the circular groove walls, and the groove wall adjacent to the exhaust hole side is defined as the first groove wall, and the groove wall away from the exhaust hole side is defined as the second groove wall. The groove wall area adjacent to the groove top of the second groove wall of the riser body extends horizontally in the direction away from the exhaust hole, and a groove structure is formed at the top of the riser body with one end connected to the glue coating groove and the other end extending in the direction away from the exhaust hole to form a glue overflow groove, and the radial dimension of the groove wall area adjacent to the groove top of the second groove wall is defined as the groove depth of the glue overflow groove. The groove depth of the glue overflow groove is 1 / 3 of the groove depth of the glue coating groove. The groove width of the glue coating groove of the present embodiment is 4mm, the groove depth is 3mm, and the groove bottom of the glue overflow groove is lower than the groove top of the glue coating groove, that is, 1mm from the top of the riser.
[0031] The overflow groove of this embodiment extends horizontally in a direction away from the exhaust hole to the outer side of the top of the riser body.
[0032] Working principle: When installing the exhaust needle of the riser of this embodiment, first apply casting glue in the glue coating groove of the riser body. Due to the liquid state of the casting glue, the casting glue forms an arc-shaped structure on the upper part of the glue coating groove. Then the operator installs the exhaust needle on the top of the riser body with its exhaust hole corresponding to the exhaust hole of the riser body. In order to improve the adhesion between the exhaust needle and the riser body, the operator manually presses the exhaust needle, and the casting glue is squeezed under the action of the extrusion force to fill the glue coating groove. At this time, the arc-shaped structure is squeezed into a horizontal structure, and then the excess casting glue in the glue coating groove and the remaining air in the casting glue are squeezed out and flow along the step between the overflow glue groove and the glue coating groove toward the overflow glue groove, so that the excess casting glue is squeezed into the overflow glue groove until it overflows to the outside of the exhaust needle. Finally, the operator fixes the riser and the exhaust needle with a fixing piece until the casting glue is completely solidified, and the installation of the exhaust needle is completed.
[0033] The implementation methods of the utility model are described in detail above in conjunction with the embodiments, but the utility model is not limited to the above-mentioned implementation methods. For ordinary technicians in this technical field, after knowing the contents recorded in the utility model, they can make several equivalent changes and substitutions thereto without departing from the principle of the utility model. These equivalent changes and substitutions should also be regarded as belonging to the protection scope of the utility model.
Claims
1. A riser for preventing glue from clogging, comprising a riser body; characterized in that: The riser body is a hollow structure with a closed top and an open bottom, and a through exhaust hole is provided at the closed top end; a glue coating groove is provided along the outside of the exhaust hole at the top of the riser body for applying casting glue; a glue overflow groove is provided at the top of the riser body in a direction away from the exhaust hole, and the glue overflow groove is connected with the glue coating groove; when the exhaust needle is installed on the top of the riser body, the casting glue is squeezed to fill the glue coating groove, and the overflowed casting glue is squeezed toward the overflow glue groove to limit the casting glue from flowing toward the exhaust hole.
2. The anti-glue clogging riser according to claim 1, characterized in that: The riser body is a vertically penetrating cylinder with a gradually changing diameter. The exhaust needle is installed on the top of the small diameter end of the riser body, and the internal exhaust hole of the exhaust needle is connected with the exhaust hole of the riser body.
3. The anti-glue clogging riser according to claim 2, characterized in that: A pressure relief groove is provided at the middle position of the top closed end inside the riser body, and the exhaust hole of the riser body passes through the pressure relief groove.
4. The anti-glue clogging riser according to claim 1, characterized in that: The glue coating groove is a circular ring-shaped groove structure.
5. The anti-glue clogging riser according to claim 4, characterized in that: The annular groove of the glue coating groove includes two relatively parallel annular groove walls and a groove bottom perpendicular to the annular groove walls, and the groove wall adjacent to the exhaust hole is defined as the first groove wall, and the groove wall away from the exhaust hole is defined as the second groove wall.
6. The anti-glue clogging riser according to claim 5, characterized in that: The groove wall area of the second groove wall of the riser body adjacent to the groove top extends in the horizontal direction away from the exhaust hole, and a groove structure is formed at the top of the riser body, one end of which is connected to the glue coating groove and the other end of which extends away from the exhaust hole to form a glue overflow groove, and the radial dimension of the groove wall area of the second groove wall adjacent to the groove top is defined as the groove depth of the glue overflow groove.
7. The anti-glue clogging riser according to claim 6, characterized in that: The groove depth of the glue overflow groove is 1 / 3 of the groove depth of the glue coating groove.
8. The anti-glue clogging riser according to claim 6, characterized in that: The overflowing glue groove extends in a horizontal direction away from the exhaust hole, at least to the outside of the positive projection area of the exhaust needle on the top of the riser body.
9. The anti-glue clogging riser according to claim 8, characterized in that: The glue overflow groove extends horizontally in a direction away from the exhaust hole to the outer side edge of the top of the riser body.
10. The anti-glue clogging riser according to claim 1, characterized in that: The riser body is made of any one of silica sand, heating material and water glass.