Injector assembly mold and tappet core casting equipment
By designing the injection head assembly mold, and using air needles to make the coated sand be arranged and molded in the sand injection port, the accuracy problem when drilling the sand core manually is solved, and the direct casting and efficient molding of the sand core are achieved.
Patent Information
- Application Number
- CN202420679937.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-04-03
AI Technical Summary
In the prior art, when drilling sand core manually, problems such as drilling deviation, insufficient drilling depth and inaccurate accuracy are prone to occur, which leads to difficulty in drilling the sand core and low accuracy.
A injection head assembly mold is designed, including an assembly table, a sand injection port and a sand inlet port. The coated sand is arranged and molded in the sand injection port through an air needle to form a sand core to avoid artificial drilling.
The direct casting of the sand core is achieved, which solves the problems of drilling deviation, insufficient drilling depth and inaccurate accuracy during manual drilling, and improves the casting accuracy and efficiency of the sand core.
Smart Images
Figure CN222725419U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of casting, and in particular relates to a shooting head assembly mould and a tappet hole core casting device. Background Art
[0002] In order to improve the cleanliness of the inner cavity of the casting and facilitate the cleaning of the casting, the tappet holes of the machine body are made of coated sand. In order to facilitate the exhaust of the sand core, a manual drilling process must be added. However, the sand core made of coated sand has high strength, and it is difficult to drill holes from the core head into the sand core manually. There will be problems such as deviation of drilling, insufficient drilling depth and unstable position, which makes it difficult to drill holes in the sand core and the accuracy is not high.
[0003] Therefore, it is necessary to solve the technical problems of sand core drilling deviation, insufficient drilling depth and inaccurate drilling accuracy. Utility Model Content
[0004] The utility model aims to provide a shooting head assembly mould and a tappet hole core casting device to solve the above technical problems.
[0005] In order to solve the above technical problems, the utility model provides a shooting head assembly mold, including: an assembly table, at least one sand shooting port is opened on its upper surface, and a sand inlet is opened on its lower surface, and the sand inlet is connected to the sand shooting port; an air needle is arranged in the sand shooting port, so that the sand shooting port forms a ring arrangement around the air needle, and the air needle extends outward from the sand shooting port.
[0006] Further, the assembly platform includes an upper mounting plate and a lower mounting plate which are stacked;
[0007] The sand shooting port is annularly arranged on the upper surface of the upper mounting plate, the sand inlet is arranged on the lower surface of the lower mounting plate, and the root of the air needle is connected to the upper surface of the lower mounting plate and extends from the sand shooting port.
[0008] Further, the assembly platform includes an upper mounting plate and a lower mounting plate which are stacked;
[0009] A recess is formed on the upper surface of the lower mounting plate, and the lower surface of the upper mounting plate covers the recess to form a through passage between a sand inlet and a sand shooting port; and the root of the air needle is connected to the recess and extends from the sand shooting port.
[0010] Furthermore, the sand inlet is connected to the recess at a position away from the edge thereof, and after the lower surface of the upper mounting plate covers the recess, a sand release gap is formed at the edge of the recess.
[0011] Furthermore, the distance between the edge of the sand inlet and the center of the gas needle is 15mm-22mm.
[0012] Furthermore, a cavity suitable for cooling is arranged in the upper mounting plate, and an inlet and an outlet communicating with the cavity are arranged in the upper mounting plate, the inlet is a water inlet, and the outlet is a water outlet.
[0013] Furthermore, a cavity suitable for cooling is arranged inside the upper mounting plate, and an inlet and an outlet communicating with the cavity are arranged inside the upper mounting plate, the inlet is an air inlet, and the outlet is an air outlet.
[0014] Furthermore, the height distance between the stacked upper mounting plates of the recess is 3mm-4mm.
[0015] Furthermore, a push rod core casting device is provided, characterized in that it comprises: the shooting head assembly mold described above; and the sandblasting device described above, which is connected to the sand inlet.
[0016] The beneficial effect of the utility model is that when the shooting head is used to assemble the mold for casting, the sand core part can be directly cast without drilling additional holes, which fully solves the technical problems of drilling deviation, insufficient drilling depth and inaccurate drilling accuracy during the original manual drilling.
[0017] Other features and advantages of the present invention will be set forth in the following description, and in part will become apparent from the description, or may be understood by implementing the present invention.
[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0020] Figure 1 This is an overall diagram of the shooter assembly mold of the utility model;
[0021] Figure 2 It is a partial cross-sectional view of the shooting head assembly mold of the utility model;
[0022] Figure 3 It is a combined diagram of a tappet hole core casting device of the utility model.
[0023] In the figure:
[0024] 1. Mold cavity, 2. Sandblasting equipment, 3. Assembly table, 10. Upper mounting plate, 11. Sandblasting port, 12. Inlet, 13. Outlet, 14. Cavity, 20. Lower mounting plate, 21. Air needle, 22. Sand inlet, 23. Recess. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0026] In order to improve the cleanliness of the inner cavity of the casting and facilitate the cleaning of the casting, the tappet holes of the machine body are made of coated sand. In order to facilitate the exhaust of the sand core, a manual drilling process must be added. However, the sand core made of coated sand has high strength, and it is difficult to drill holes from the core head into the sand core manually. There will be problems such as deviation of drilling, insufficient drilling depth and unstable position, which makes it difficult to drill holes in the sand core and the accuracy is not high.
[0027] Therefore, it is necessary to solve the technical problems of sand core drilling deviation, insufficient drilling depth and inaccurate drilling accuracy.
[0028] like Figure 1 As shown, at least one embodiment of the shooting head assembly mold includes: an assembly table 3, at least one sand shooting port 11 is opened on its upper surface, and a sand inlet 22 is opened on its lower surface, and the sand inlet 22 is connected with the sand shooting port 11; the coated sand enters from the sand inlet 22, and the coated sand is ejected from the sand shooting port 11 connected with the sand inlet 22.
[0029] In some embodiments, an air needle 21 is arranged in the sand-shooting port 11, so that the sand-shooting port 11 forms a ring around the air needle 21, and the air needle 21 extends outward from the sand-shooting port 11. The coated sand is ejected from the sand-shooting port 11 and surrounds the outer wall of the air needle 21 to form a sand core made of coated sand.
[0030] In some embodiments, the use of the shooting head assembly mold requires the coordinated use of mold components. The assembly table 3 includes an upper mounting plate 10 and a lower mounting plate 20 that are stacked. The upper mounting plate 10 and the lower mounting plate 20 need to be stacked together before the shooting head assembly mold can be used.
[0031] In some embodiments, the sand shooting port 11 is annularly arranged on the upper surface of the upper mounting plate 10, the sand inlet 22 is arranged on the lower surface of the lower mounting plate 20, and the root of the air needle 21 is connected to the upper surface of the lower mounting plate 20 and extends from the sand shooting port 11. That is, during the casting process, the coated sand enters from the sand inlet 22 on the lower surface of the lower mounting plate 20, and the coated sand passes through the sand inlet 22 and upward along the root of the air needle 21, and is ejected from the sand shooting port 11 of the upper mounting plate 10, and the coated sand surrounds the outer wall of the air needle 21 extending from the sand shooting port 11 to form a sand core.
[0032] In some embodiments, the assembly platform 3 includes an upper mounting plate 10 and a lower mounting plate 20 arranged in layers, and a recess 23 is provided on the upper surface of the lower mounting plate 20. The recess 23 has a certain sand blocking effect to prevent the coated sand from falling back due to inertia, causing the entire device to be unable to work normally and continuously. The lower surface of the upper mounting plate 10 is covered with the recess 23 to form a through channel between the sand inlet 22 and the sand shooting port 11. The formed through channel allows the coated sand to enter the upper mounting plate 10 continuously through the channel after entering from the sand inlet 22. The root of the air needle 21 is connected to the recess 23 and extends from the sand shooting port 11. After the coated sand enters from the sand inlet 22 of the lower mounting plate 20, it reaches the upper mounting plate 10 through the recess 23. The coated sand surrounds the air needle 21 connected to the recess 23 and is ejected from the sand shooting port 11 to form a sand core on the outer wall of the air needle 21.
[0033] In some embodiments, the sand inlet 22 is connected to the recess 23 away from its edge, and after the lower surface of the upper mounting plate 10 covers the recess 23, a sand release gap is formed at the edge of the recess 23. The sand release gap can improve the waste of coated sand materials caused by the inertial fall of the coated sand during the casting process, and can also better allow the coated sand to pass through, so that the entire core making process is continuous and efficient.
[0034] The distance between the edge of the sand inlet 22 and the center of the gas needle 21 is 15 mm-22 mm. The optimal sand blocking distance range is calculated after repeated experiments based on the theory of the deposition angle of coated sand.
[0035] In some embodiments, the coated sand will solidify due to overheating during continuous operation, so a cavity 14 suitable for cooling is set in the upper mounting plate 10, and an inlet 12 and an outlet 13 connected to the cavity 14 are set in the upper mounting plate 10, the inlet is a water inlet, and the outlet is a water outlet. When the coated sand enters from the sand inlet 22 and passes through the upper mounting plate 10, the inlet 12 and the outlet 13 connected to the cavity 14 in the upper mounting plate 10 start to work, and cold water starts to enter the inlet for cooling, and the outlet drains water to keep the cavity 14 at a constant temperature, so that the coated sand will not solidify in the channel when passing through, and can pass smoothly through the upper mounting plate 10 and be ejected from the sand shooting port 11.
[0036] In some embodiments, the coated sand will solidify due to overheating during continuous operation, so a cavity 14 suitable for cooling is set in the upper mounting plate 10, and an inlet 12 and an outlet 13 connected to the cavity 14 are set in the upper mounting plate 10. The inlet is an air inlet, and the outlet is an air outlet. When the coated sand enters from the sand inlet 22 and passes through the upper mounting plate 10, the inlet 12 and the outlet 13 connected to the cavity 14 in the upper mounting plate 10 start to work, and cold air enters from the inlet 12 and blows out from the outlet 13. The cavity 14 maintains constant temperature cooling, so that the coated sand will not solidify in the channel when passing through and can pass smoothly through the upper mounting plate 10 and be ejected from the sand shooting port 11.
[0037] The distance between the upper mounting plates 10 stacked at a high distance in the recess 23 is 3mm-4mm. After repeated experiments, it is found that the distance within this range is optimal, which will not affect the passage of the coated sand and can also play a certain role in blocking sand.
[0038] A tappet core casting device comprises: a head assembly mold; and the sandblasting device 2, which is connected to the sand inlet 22. The sandblasting device 2 is connected to the sand inlet 22, so that the coated sand can continuously enter from the sand inlet 22 to start the continuous core making operation.
[0039] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0041] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A shooting head assembly mold, characterized in that: include: The assembly table has at least one sand shooting port on its upper surface and a sand inlet on its lower surface, wherein the sand inlet is connected to the sand shooting port; An air needle is arranged in the sand shooting port, so that the sand shooting port forms a ring arrangement around the air needle, and the air needle extends outward from the sand shooting port.
2. The head assembly mold according to claim 1, characterized in that: The assembly platform comprises an upper mounting plate and a lower mounting plate which are stacked; The sand shooting port is annularly arranged on the upper surface of the upper mounting plate, the sand inlet is arranged on the lower surface of the lower mounting plate, and The root of the air needle is connected to the upper surface of the lower mounting plate and extends out from the sand shooting port.
3. The head assembly mold according to claim 1, characterized in that: The assembly platform comprises an upper mounting plate and a lower mounting plate which are stacked; A recess is formed on the upper surface of the lower mounting plate, and the lower surface of the upper mounting plate covers the recess to form a through passage between the sand inlet and the sand shooting port; and The root of the air needle is connected to the concave portion and extends out from the sand shooting port.
4. The head assembly mold according to claim 3, characterized in that: The sand inlet is connected to the recess at a position away from the edge thereof, and after the lower surface of the upper mounting plate covers the recess, a sand release gap is formed at the edge of the recess.
5. The head assembly mold according to claim 1, characterized in that: The distance between the edge of the sand inlet and the center of the gas needle is 15mm-22mm.
6. The head assembly mold according to claim 2, characterized in that: A cavity suitable for cooling is arranged in the upper mounting plate, and an inlet and an outlet communicating with the cavity are arranged in the upper mounting plate, wherein the inlet is a water inlet and the outlet is a water outlet.
7. The head assembly mold according to claim 2, characterized in that: A cavity suitable for cooling is arranged inside the upper mounting plate, and an inlet and an outlet communicating with the cavity are arranged inside the upper mounting plate, wherein the inlet is an air inlet and the outlet is an air outlet.
8. The head assembly mold according to claim 3, characterized in that: The height of the recessed portion and the distance between the stacked upper mounting plates are 3 mm to 4 mm.
9. A tappet core casting device, characterized in that: include: The head assembly mold according to claim 1; as well as The sand blasting device is connected with the sand inlet.