Convenient-to-replace wax injection machine spray head for stainless steel pipe fitting casting mould

By designing an easy-to-replace wax injection machine nozzle and utilizing structures such as limiting devices and magnetic blocks, the problem of low nozzle replacement efficiency in existing technologies has been solved, enabling rapid nozzle replacement and improving operational efficiency.

CN224222667UActive Publication Date: 2026-05-12ZHEJIANG MEIDE OPTICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG MEIDE OPTICAL CO LTD
Filing Date
2025-06-10
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The replacement of the nozzles of the existing wax injection machine for stainless steel pipe fittings is inefficient and requires operators to spend a lot of time.

Method used

A replaceable wax injection machine nozzle was designed, comprising a connector, a guide tube, a cylinder, and a replacement device. Utilizing a limiting device, a rotating ring, and a magnetic block, the nozzle is quickly disassembled by magnetically holding the extension disc. The limiting device and the insert rod structure simplify the nozzle installation process.

Benefits of technology

It effectively reduces nozzle replacement time, improves operational efficiency, and avoids wasting time due to nozzle replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of stainless steel pipe fitting casting molds, in particular to a wax injection machine nozzle convenient to replace for stainless steel pipe fitting casting molds, which comprises a connector, a material guide pipe and an air cylinder, one end of the connector is sleeved and connected with the material guide pipe, the air cylinder is mounted on the surface of the material guide pipe, a replacing device is arranged on the surface of the connector, and the replacing device comprises a sleeve groove. The sleeve groove is formed in one end of the connector, one end of the connector is rotationally connected with a rotating ring, the outer surface of the rotating ring is fixedly connected with an extension disc, one end of the material guiding pipe is fixedly connected with a limiting block, the sleeve groove sleeves the surface of the limiting block, a containing groove is formed in the surface of the limiting block, and the extension disc is connected with the interior of the containing groove in an inserted mode. A storage assembly is arranged on the surface of the connector. By arranging the replacing device with a specific structure, an operator can effectively and conveniently replace the spray head, the phenomenon that the operator needs to spend a lot of time to replace the spray head is avoided, and the efficiency of replacing the spray head by the operator is further improved.
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Description

Technical Field

[0001] This utility model relates to the field of stainless steel pipe fitting casting technology, and in particular to a wax injection nozzle for stainless steel pipe fitting casting that is easy to replace. Background Technology

[0002] The wax injection nozzle for stainless steel pipe fittings casting molds is a type of nozzle used in the production of stainless steel castings. It is mainly used in the wax injection process during precision casting. The wax injection process involves injecting molten wax into a mold made according to the shape and size of the product, which then solidifies to form a wax part. The function of the wax injection nozzle is to spray the wax out of the machine to complete this process. Wax injection nozzles are widely used in the precision casting industry, especially in the production of stainless steel castings. By using this nozzle, production efficiency can be improved, manual operation difficulty can be reduced, and the smooth operation of the production process can be ensured.

[0003] When operators need to cast stainless steel pipe fittings, they place the mold in the wax injection machine. The wax injection machine nozzle is pushed into the mold by the cylinder so that the wax injection machine nozzle can cast stainless steel pipe fittings. However, the existing wax injection machine nozzles may become clogged during use, and operators need to use auxiliary tools to disassemble the nozzles, which causes operators to spend a lot of time replacing the nozzles, resulting in low efficiency when replacing nozzles. Utility Model Content

[0004] To address the problem of low efficiency when operators change nozzles in existing technologies, this invention proposes a replaceable nozzle for a wax injection machine used in stainless steel pipe casting, thereby effectively reducing the time required for nozzle replacement and improving efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A replaceable wax injection nozzle for stainless steel pipe molding includes a connector, a guide tube, and a cylinder. One end of the connector is fitted with the guide tube, and the cylinder is mounted on the surface of the guide tube. A replacement device is provided on the surface of the connector, including a groove on one end of the connector. A rotating ring is rotatably connected to one end of the connector, and an extension disc is fixedly connected to the outer surface of the rotating ring. A limiting block is fixedly connected to one end of the guide tube, and the groove fits onto the surface of the limiting block. A receiving groove is formed on the surface of the limiting block, and the extension disc is inserted into the receiving groove. A receiving assembly is provided on the surface of the connector, including a limiting port on the surface of the extension disc. A magnetic block is fixedly connected to one side of the connector, and the magnetic block is adapted to the inner side of the limiting port. The limiting port can cooperate with the magnetic block to magnetically restrict the rotation of the extension disc.

[0007] Preferably, in the aforementioned easily replaceable stainless steel pipe mold wax injection nozzle, the outer surface of the joint is provided with a limiting device, the limiting device including an anti-rotation strip, the anti-rotation strip is fixedly connected to the outer surface of the joint, the anti-rotation strip is located on one side of the guide tube, and the anti-rotation strip can cooperate with the joint to achieve the purpose of supporting the anti-rotation strip.

[0008] Preferably, in the aforementioned easily replaceable stainless steel pipe fitting casting wax injection nozzle, the outer surface of the connector is slidably connected with a slip ring, the slip ring is slidably connected with the outer surface of the anti-rotation strip, and the slip ring can cooperate with the connector to achieve the purpose of guiding the slip ring.

[0009] Preferably, in the aforementioned easily replaceable stainless steel pipe mold wax injection nozzle, a plug rod is fixedly connected to one side of the slip ring. The plug rod is inserted into the inner side of the limiting port. The surface of the connector has an insertion port. The plug rod is inserted into the inside of the insertion port. The plug rod is inserted into the inside of the guide tube. The plug rod can cooperate with the slip ring to achieve the purpose of limiting the rotation of the extension disc.

[0010] Preferably, in the aforementioned easily replaceable wax injection nozzle for stainless steel pipe molds, a push spring is fixedly connected between the slip ring and the anti-rotation strip. The push spring is located on both sides of the joint and can cooperate with the slip ring and the anti-rotation strip to achieve the purpose of pushing the slip ring to slide.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] 1) This utility model includes a replacement device with a specific structure. When the operator needs to replace the nozzle, the operator pulls the limiting device, which disengages from the limiting port. The operator then rotates the extension disc, which drives the rotating ring. The rotating ring is guided by the connector and rotates. When the extension disc disengages from the receiving groove of the limiting block, the extension disc drives the limiting port to be fitted onto the magnetic block. The magnetic block holds the extension disc with magnetic force. The operator then removes the blocked connector, which drives the sleeve groove to disengage from the limiting block. The operator then installs the new connector onto the guide tube. The above steps are then reversed. By setting up the replacement device, the operator can effectively replace the nozzle, avoiding the need for the operator to spend a lot of time replacing the nozzle, thereby improving the efficiency of the operator in replacing the nozzle.

[0013] 2) This utility model is equipped with a limiting device with a specific structure. When the operator needs to replace the nozzle, the operator pulls the slip ring. The slip ring is guided by the connector and the anti-rotation strip. The slip ring drives the insertion rod, which disengages from the insertion port and the guide tube. The insertion rod disengages from the limiting port. Then, the operator can adjust the extension plate. By setting the limiting device, it is possible to effectively facilitate the operator to replace the nozzle, avoid the time-consuming situation when the operator replaces the nozzle, and further improve the efficiency of the operator to replace the nozzle. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the easily replaceable wax injection nozzle for casting molds of stainless steel pipe fittings according to this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the easy-to-replace wax injection nozzle replacement device for stainless steel pipe molds according to this utility model.

[0016] Figure 3 This utility model relates to an easily replaceable wax injection nozzle for casting stainless steel pipe fittings. Figure 2 Enlarged structural diagram at point A in the middle;

[0017] Figure 4 This is a schematic diagram of the limiting device for the easily replaceable wax injection nozzle of the stainless steel pipe fitting casting machine according to the present invention.

[0018] Figure 5 This utility model relates to an easily replaceable wax injection nozzle for casting stainless steel pipe fittings. Figure 4 Enlarged structural diagram at point B.

[0019] Reference numerals: 1. Connector; 2. Feed tube; 3. Changing device; 31. Storage slot; 32. Limiting block; 33. Magnetic block; 34. Limiting port; 35. Extension disc; 36. Rotating ring; 37. Sleeve groove; 4. Limiting device; 41. Slip ring; 42. Insert rod; 43. Push spring; 44. Anti-rotation bar; 45. Insertion port; 5. Cylinder. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments and accompanying drawings, but this should not be construed as limiting the invention. Contents not described in detail below are all common knowledge in the art or can be implemented using conventional techniques in the art.

[0021] Please see Figures 1-5 The present invention relates to a replaceable wax injection nozzle for stainless steel pipe casting molds, comprising a connector 1, a guide tube 2, and a cylinder 5. One end of the connector 1 is fitted with the guide tube 2, and the cylinder 5 is mounted on the surface of the guide tube 2.

[0022] The specific settings and functions of the replacement device 3 and the limiting device 4 will be explained in detail below.

[0023] In this embodiment: a replacement device 3 is provided on the surface of the connector 1. The replacement device 3 includes a sleeve groove 37, which is opened on one end of the connector 1. A rotating ring 36 is rotatably connected to one end of the connector 1. An extension disc 35 is fixedly connected to the outer surface of the rotating ring 36. A limiting block 32 is fixedly connected to one end of the guide tube 2. The sleeve groove 37 is sleeved on the surface of the limiting block 32. A storage groove 31 is opened on the surface of the limiting block 32. The extension disc 35 is inserted into the inside of the storage groove 31. A storage component is provided on the surface of the connector 1.

[0024] Specifically, the storage component includes a limiting port 34, which is opened on the surface of the extension tray 35. A magnetic block 33 is fixedly connected to one side of the connector 1. The magnetic block 33 is adapted to the inner side of the limiting port 34. The limiting port 34 can cooperate with the magnetic block 33 to achieve the purpose of limiting the rotation of the extension tray 35 by magnetic force.

[0025] Specifically, a limiting device 4 is provided on the outer surface of the connector 1. The limiting device 4 includes an anti-rotation strip 44, which is fixedly connected to the outer surface of the connector 1 and is located on one side of the guide tube 2.

[0026] In this embodiment, the anti-rotation strip 44 can be matched with the connector 1 to achieve the purpose of supporting the anti-rotation strip 44.

[0027] In this embodiment: a slip ring 41 is slidably connected to the outer surface of the connector 1. The slip ring 41 is slidably connected to the outer surface of the anti-rotation strip 44. The slip ring 41 can cooperate with the connector 1 to guide the slip ring 41.

[0028] Specifically, a rod 42 is fixedly connected to one side of the slip ring 41. The rod 42 is inserted into the inside of the limiting port 34. The surface of the connector 1 is provided with a socket 45. The rod 42 is inserted into the inside of the socket 45 and the rod 42 is inserted into the inside of the guide tube 2.

[0029] In this embodiment, the insertion rod 42 can cooperate with the slip ring 41 to restrict the rotation of the extension disc 35.

[0030] Specifically, a push spring 43 is fixedly connected between the slip ring 41 and the anti-rotation strip 44, and the push spring 43 is located on both sides of the connector 1.

[0031] In this embodiment: the push spring 43 can cooperate with the slip ring 41 and the anti-rotation strip 44 to achieve the purpose of pushing the slip ring 41 to slide.

[0032] Working principle: When the operator needs to replace the nozzle, the operator pulls the limiting device 4, which disengages from the limiting port 34. The operator then rotates the extension disc 35, which drives the rotating ring 36. The rotating ring 36 is guided by the connector 1 and rotates. When the extension disc 35 disengages from the receiving groove 31 of the limiting block 32, the extension disc 35 drives the limiting port 34 to be fitted onto the magnetic suction block 33. The magnetic suction block 33 magnetically holds the extension disc 35. The operator then removes the blocked connector 1, which drives the sleeve groove 37 to disengage from the limiting block 32. The operator then installs the new connector 1 onto the guide tube 2. The above steps are then reversed. By setting the replacement device 3, the following steps can be achieved: This design effectively facilitates nozzle replacement for operators, avoiding the time-consuming process and improving nozzle replacement efficiency. Furthermore, when nozzle replacement is needed, the operator pulls the slip ring 41, guided by the connector 1 and anti-rotation strip 44. The slip ring 41 drives the insertion rod 42, disengaging it from the insertion port 45 and the guide tube 2, and then from the limiting port 34. The operator can then adjust the extension disc 35. The limiting device 4 effectively facilitates nozzle replacement, preventing time-consuming processes and further improving nozzle replacement efficiency.

[0033] The foregoing general description of the utility model and its specific embodiments should not be construed as limiting the technical solution of the utility model. Those skilled in the art, based on the disclosure of this application, can add, reduce, or combine the disclosed technical features in the foregoing general description and / or specific embodiments (including examples) without departing from the constituent elements of the utility model, to form other technical solutions within the protection scope of this application.

Claims

1. A replaceable wax injection nozzle for stainless steel pipe casting molds, comprising a connector (1), a guide pipe (2), and a cylinder (5), characterized in that: One end of the connector (1) is fitted with a guide tube (2), and a cylinder (5) is mounted on the surface of the guide tube (2). The surface of the connector (1) is provided with a replacement device (3), the replacement device (3) includes a sleeve groove (37), the sleeve groove (37) is formed on one end of the connector (1); One end of the connector (1) is rotatably connected to a rotating ring (36), and an extension disc (35) is fixedly connected to the outer surface of the rotating ring (36). One end of the guide tube (2) is fixedly connected to a limiting block (32). The sleeve groove (37) is sleeved on the surface of the limiting block (32). A storage groove (31) is opened on the surface of the limiting block (32). The extension disc (35) is inserted into the inside of the storage groove (31). A storage component is provided on the surface of the connector (1).

2. The easily replaceable wax injection nozzle for stainless steel pipe fitting casting as described in claim 1, characterized in that: The storage component includes a limiting port (34), which is opened on the surface of the extension tray (35). A magnetic block (33) is fixedly connected to one side of the connector (1), and the magnetic block (33) is adapted to the inner side of the limiting port (34).

3. The easily replaceable wax injection nozzle for stainless steel pipe fitting casting as described in claim 1, characterized in that: The outer surface of the connector (1) is provided with a limiting device (4), the limiting device (4) includes an anti-rotation strip (44), the anti-rotation strip (44) is fixedly connected to the outer surface of the connector (1), and the anti-rotation strip (44) is located on one side of the guide tube (2).

4. The easily replaceable wax injection nozzle for stainless steel pipe fitting casting as described in claim 3, characterized in that: The outer surface of the connector (1) is slidably connected to a slip ring (41), and the slip ring (41) is slidably connected to the outer surface of the anti-rotation strip (44).

5. The easily replaceable wax injection nozzle for stainless steel pipe fitting casting as described in claim 4, characterized in that: A rod (42) is fixedly connected to one side of the slip ring (41). The rod (42) is inserted into the inner side of the limiting port (34). The surface of the connector (1) is provided with a socket (45). The rod (42) is inserted into the inside of the socket (45). The rod (42) is inserted into the inside of the guide tube (2).

6. The easily replaceable wax injection nozzle for stainless steel pipe fitting casting as described in claim 5, characterized in that: A push spring (43) is fixedly connected between the slip ring (41) and the anti-rotation strip (44), and the push spring (43) is located on both sides of the joint (1).