A wax injection molding apparatus and wax pattern casting line

Abstract

A kind of wax injection molding device and wax mold casting processing line;Wax injection molding device includes: forming frame, injection container, injection nozzle and extrusion drive component;Injection container is equipped with injection cavity, and the input end of injection nozzle is connected to injection container;Extrusion drive component is installed to injection container, and the output end of extrusion drive component transports wax liquid to injection nozzle, so that wax liquid is exported through the output end of injection nozzle;Container main body is installed to forming frame;Container main body is equipped with injection cavity;Side mouth is equipped with limit shaft and screw hole extending in the same direction;Side plate is arranged in side mouth, and limit shaft extends into one plate hole;Threaded rod passes through another plate hole and is threadedly connected to screw hole, and adjusting head is abutted to the surface of side plate, so that side plate is detachably limited in side mouth.The wax injection molding device of the scheme is convenient for daily cleaning of injection cavity, avoids the influence of residual solid wax in injection cavity on subsequent batch of wax injection process, so as to solve the problem that wax liquid is difficult to clean due to the inconvenience of disassembling wax injection molding device.

Description

Technical Field

[0001] This utility model relates to the field of wax injection molding, and in particular to a wax injection molding device and a wax mold casting processing line. Background Technology

[0002] Lost-wax casting, also known as investment casting, is a process for creating precision castings using fusible wax models. The process includes wax model making, refractory shell preparation, melt extraction from the wax model, and pouring of molten metal. It is suitable for manufacturing complex structures and high-precision parts, and offers advantages such as near-net-shape forming, long mold life, and compatibility with various metal materials.

[0003] In actual production applications, after the molding device cools down, the temperature of the residual wax will drop below the wax precipitation point (initial crystallization temperature), causing the wax to precipitate from the molten state and crystallize. The faster the temperature drops, the more severe the wax crystallization. Residual solid wax may lead to defects in the molding device, such as incomplete wax filling, bubbles, and surface wrinkles. Furthermore, existing molding devices have complex structures, cumbersome disassembly and installation procedures, and are inconvenient for regular cleaning of the internal cavity. Prolonged solid wax residue on the inner wall is detrimental to the quality of subsequent products produced by the molding device. Utility Model Content

[0004] The purpose of this invention is to provide a wax injection molding device, which detachably installs a side plate on the side opening of the injection cavity. The side plate can be locked or removed from the side opening simply by driving the adjustment head to rotate, which facilitates daily cleaning of the injection cavity.

[0005] The utility model also proposes a wax mold casting processing line, which is equipped with the above-mentioned wax injection molding device.

[0006] To achieve this objective, the present invention adopts the following technical solution: A wax injection molding apparatus includes: a molding frame, an injection container, an injection nozzle, and an extrusion drive assembly; The injection container is mounted on the molding frame; the injection container has an injection chamber, and the input end of the injection nozzle is connected to the injection container; the extrusion drive assembly is mounted on the injection container, and the output end of the extrusion drive assembly delivers wax liquid to the injection nozzle, so that the wax liquid is output through the output end of the injection nozzle; The injection container includes: a container body, a side plate, and a locking pin; The container body is mounted on the molding frame; the container body is provided with the injection cavity, and the injection cavity has a side opening on the side; the side opening is provided with a limiting shaft and a threaded hole extending in the same direction; the side plate is provided with at least a pair of plate holes, the side plate is disposed at the side opening, and the limiting shaft extends into one of the plate holes; the locking pin is provided with a threaded rod and an adjusting head, the threaded rod passes through the other plate hole and is threaded into the threaded hole, and the adjusting head abuts against the surface of the side plate, so that the side plate is detachably limited to the side opening.

[0007] Optimally, the threaded rod is provided with a threaded section and a smooth section in sequence toward the threaded hole; the threaded section is threadedly engaged with the threaded hole; The threaded rod is adjusted so that the smooth section is located between the surface of the adjusting head and the side plate, the limiting shaft is disengaged from the plate hole, the side plate moves along the smooth section to disengage from the side opening, and the side plate rotates around the smooth section to disengage from the side opening, so that the injection cavity is exposed from the side opening.

[0008] Optimally, it may also include: a chain; One end of the chain is connected to the side plate, and the other end of the chain is connected to the adjustment head.

[0009] Optimally, it may also include: a connecting ring; The side plate has protruding posts on its surface; the protruding posts have post holes; the connecting ring connects the post holes and one end of the chain as a whole; the connecting ring is used to adjust the movement of the side plate along the smooth section, and also to adjust the rotation of the side plate around the smooth section.

[0010] Alternatively, the bottom of the container body may be provided with a supporting base plate below the side plate; When the side plate is positioned at the side opening, the bottom surface of the side plate contacts the supporting base plate; When the threaded rod is adjusted so that the smooth section is between the surface of the adjusting head and the side plate, a rotation adjustment space is formed between the smooth section and the molding frame directly below it; the side plate moves to disengage from the supporting base plate and is located in the rotation adjustment space, and the side plate rotates and adjusts in the rotation adjustment space so that the injection cavity is exposed at the side opening.

[0011] Alternatively, the side plate may be provided with a clearance ramp at the transition position between the bottom surface and the side surface; the plate hole where the locking pin is located is close to the clearance ramp.

[0012] Optimally, it may also include: a positioning plate; The positioning plate is installed on the forming frame; when the side plate is flipped to detach from the side opening, the side plate abuts against the positioning plate.

[0013] Alternatively, the injection container may further include: a locking screw; The side opening is provided with the limiting shaft and threaded hole on one horizontal side, and a locking hole is provided on the other horizontal side of the side opening; when the side plate is limited to the side opening, the locking screw passes through the locking hole and is threaded into the side hole of the side plate; The side hole extends along the length direction of the side plate, and the plate hole extends along the thickness direction of the side plate.

[0014] A wax casting processing line is provided with the above-mentioned wax injection molding device.

[0015] Compared with the prior art, one of the above technical solutions has the following beneficial effects: This solution provides a wax injection molding device in which a side plate is detachably installed at the side opening of the injection chamber. The side plate can be locked or removed from the side opening simply by driving the adjustment head to rotate, which facilitates daily cleaning of the injection chamber and prevents the solid wax residue in the injection chamber from affecting the wax injection process of subsequent batches. This solves the problem of inconvenient disassembly of the wax injection molding device, which makes it difficult to clean the wax liquid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of one embodiment of a wax injection molding apparatus when the side plate is confined to the side opening; Figure 2 This is an exploded structural diagram of one embodiment of the wax injection molding apparatus; Figure 3 This is a schematic diagram of one embodiment of a wax injection molding apparatus when the side plate is flipped to detach from the side opening; Figure 4 This is a side view of one embodiment of the wax injection molding apparatus.

[0017] in: 1. Molding frame; 2. Injection container; 3. Injection nozzle; 4. Extrusion drive assembly; 5. Chain; 6. Connecting ring; 7. Positioning plate; Container body 21, side plate 22, locking pin 23; locking screw 24; Injection chamber 211; side opening 212; limiting shaft 213; threaded hole 214; support base plate 215; rotation adjustment space 216; locking hole 217; Plate hole 221, protruding post 222, post hole 223, clearance slope 224, side hole 225; threaded rod 231, adjusting head 232; threaded section 2311, smooth section 2312. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments 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 embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," "inner side," "outer side," "inner end," "outer end," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish descriptive features, without any order or emphasis. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0020] like Figure 1-4 A wax injection molding apparatus includes: a molding frame 1, an injection container 2, an injection nozzle 3, and an extrusion drive assembly 4; The injection container 2 is installed on the molding frame 1; the injection container 2 is provided with an injection chamber 211, and the input end of the injection nozzle 3 is connected to the injection container 2; the extrusion drive assembly 4 is installed on the injection container 2, and the output end of the extrusion drive assembly 4 delivers wax liquid to the injection nozzle 3, so that the wax liquid is output through the output end of the injection nozzle 3; The injection container 2 includes: a container body 21, a side plate 22, and a locking pin 23; The container body 21 is mounted on the molding frame 1; the container body 21 is provided with the injection cavity 211, and the injection cavity 211 is provided with a side opening 212 on the side; the side opening 212 is provided with a limiting shaft 213 extending in the same direction and a threaded hole 214; the side plate 22 is provided with at least a pair of plate holes 221, the side plate 22 is disposed in the side opening 212, and the limiting shaft 213 extends into one of the plate holes 221; the locking pin 23 is provided with a threaded rod 231 and an adjusting head 232, the threaded rod 231 passes through the other plate hole 221 and is threadedly engaged with the threaded hole 214, and the adjusting head 232 abuts against the surface of the side plate 22, so that the side plate 22 is detachably limited to the side opening 212.

[0021] This solution provides a wax injection molding device in which a side plate 22 is detachably installed on the side opening 212 of the injection cavity 211. The side plate 22 can be locked or removed from the side opening 212 simply by driving the adjusting head 232 to rotate. This facilitates daily cleaning of the injection cavity 211 and prevents the solid wax residue in the injection cavity 211 from affecting the wax injection process of subsequent batches. This solves the problem of inconvenient disassembly of the wax injection molding device, which makes it difficult to clean the wax liquid.

[0022] Specifically, the injection container 2 is provided with an injection cavity 211 for receiving the wax liquid; the extrusion drive assembly 4 is a known mechanism for conveying the wax liquid, and its conveying end drives the wax liquid to the injection nozzle 3, which then conveys the wax liquid into the molding die; for example Figure 2 In the process, the output shaft of motor 41 is reduced in speed by reducer 42, causing extrusion screw 43 to rotate. Extrusion screw 43 drives wax liquid to be conveyed towards injection nozzle 3, and the wax liquid is finally extruded through injection nozzle 3. The container body 21 is a detachable structure, which has container body 21 and side plate 22. Container body 21 has injection cavity 211, and injection cavity 211 has a side opening 212 exposed on the side. Side opening 212 has mutually parallel limiting shafts 213 and threaded holes 214. Side plate 22 has at least two plate holes 221. One plate hole 221 is used to engage the limiting shaft 213 of side opening 212, and the other plate hole 221 is used to accommodate the threaded rod 231 of locking pin 23. When locking pin 23 is driven to rotate, adjusting head 232 of threaded rod 231 moves to abut against the surface of side plate 22. Adjusting head 232 presses side plate 22 against Side opening 212 is provided to lock side plate 22 in place. When it is necessary to clean the wax liquid, the threaded rod 231 of locking post 23 can be unscrewed from threaded hole 214, and side plate 22 can be removed from side opening 212 along the extension direction of limiting shaft 213, so that injection cavity 211 can be exposed through side opening 212. Workers can clean the solid wax on the inner wall of injection cavity 211 and maintain the cleanliness of injection cavity 211 regularly. In this embodiment, side plate 22 can be removed by simply rotating adjusting threaded rod 231. The installation and removal of side plate 22 is convenient, and the cleaning steps of solid wax are simple, thus solving the problem of difficult cleaning after wax liquid cools down.

[0023] Alternatively, the threaded rod 231 may be provided with a threaded section 2311 and a smooth section 2312 in sequence toward the threaded hole 214; the threaded section 2311 is threadedly engaged with the threaded hole 214. The threaded rod 231 is adjusted so that the smooth section 2312 is located between the surface of the adjusting head 232 and the side plate 22, the limiting shaft 213 is disengaged from the plate hole 221, the side plate 22 moves along the smooth section 2312 to disengage from the side opening 212, and the side plate 22 rotates around the smooth section 2312 to disengage from the side opening 212, so that the injection cavity 211 is exposed from the side opening 212.

[0024] The threaded rod 231 has a threaded section 2311 and a smooth section 2312 along its length. The threaded section 2311 is used to mate with the threaded hole 214. Depending on the degree of thread engagement between the threaded section 2311 and the threaded hole 214, the smooth section 2312 is housed within the threaded hole 214, or between the threaded hole 214 and the plate hole 221. When the smooth section 2312 is completely housed within the plate hole 221, the adjusting head 232 abuts against the surface of the side plate 22, pressing the side plate 22 against the side opening 212. When the threaded section 2311 and the threaded hole 214 are threaded to the point that the smooth section 2312 is placed between the adjusting head 232 and the surface of the side plate 22, ... Figure 4 The smooth section 2312 allows the side plate 22 to move away from the side opening 212. The side plate 22 moves towards the adjusting head 232 so that the limiting shaft 213 disengages from the plate hole 221. At this time, the side plate 22 is limited only by the smooth section 2312 of the locking pin 23. The side plate 22 can rotate around the smooth section 2312, thereby exposing the side opening 212 of the injection cavity 211. The worker does not need to completely disassemble the side plate, but only needs to clean the injection cavity 211 through the side opening 212 after the side plate 22 is flipped over, which can further simplify the difficulty of cleaning residual solid wax.

[0025] Optimally, it also includes: chain 5; One end of the chain 5 is connected to the side plate 22, and the other end of the chain 5 is connected to the adjusting head 232.

[0026] The chain 5 connects the locking pin 23 and the side plate 22 as one unit, which can prevent the locking pin 23 from being lost after disassembly; at the same time, the chain 5 can be used to pull the side plate 22 along the smooth section 2312. The side plate 22 can be pulled out of the side opening 212 by holding the end of the chain 5 near the side plate 22, which facilitates the adjustment of the side plate 22.

[0027] Optimally, it also includes: a connecting ring 6; The surface of the side plate 22 is provided with a protruding post 222; the protruding post 222 is provided with a post hole 223; the connecting ring 6 connects the post hole 223 and one end of the chain 5 together; the connecting ring 6 is used to adjust the side plate 22 to move along the smooth section 2312, and is also used to adjust the side plate 22 to rotate around the smooth section 2312.

[0028] The connecting ring 6 is used to connect the chain 5 to the protrusion 222 of the side plate 22. The connecting ring 6 is a closed ring structure, extending into the post hole 223 and one end of the chain 5. When it is necessary to adjust the movement of the side plate 22, the inner ring of the connecting ring 6 can be engaged by hand or other tools, and the connecting ring 6 can be dragged to move. At the same time, when it is necessary to adjust the rotation of the side plate 22, the connecting ring 6 can be driven to rotate, causing the side plate 22 to rotate around the smooth section 2312, thus realizing the rotation adjustment of the side plate 22. In this way, in addition to connecting the chain 5 and the locking post 23 to the side plate 22, the connecting ring 6 can also be used to control the movement position and rotation angle of the side plate 22.

[0029] Alternatively, the bottom of the container body 21 may be provided with a supporting base plate 215 below the side plate 22; When the side plate 22 is positioned within the side opening 212, the bottom surface of the side plate 22 contacts the supporting base plate 215; When the threaded rod 231 is adjusted so that the smooth section 2312 is located between the surface of the adjusting head 232 and the side plate 22, a rotation adjustment space 216 is formed between the smooth section 2312 and the molding frame 1 directly below it; the side plate 22 moves to disengage from the supporting base plate 215 and is located in the rotation adjustment space 216, and the side plate 22 rotates and adjusts in the rotation adjustment space 216 so that the injection cavity 211 is exposed through the side opening 212.

[0030] When the side plate 22 is confined to the side opening 212, the support base plate 215 is used to support the side plate 22 upwards, which can reduce the load of the side plate 22 on the locking pin 23 and improve the service life of the locking pin 23. At the same time, there is a rotation adjustment space 216 on the side of the support base plate 215. When the smooth section 2312 is adjusted to be located between the adjustment head 232 and the surface of the side plate 22, the rotation adjustment space 216 is formed between the smooth section 2312 and the surface of the support base plate 215 below it. When the side plate 22 extends along the smooth section 2312 to the rotation adjustment space 216, the rotation adjustment space 216 does not support the base plate 215, and the side plate 22 can be angled around the smooth section 2312.

[0031] Alternatively, the side plate 22 may be provided with a clearance ramp 224 at the transition position between the bottom surface and the side surface; the plate hole 221 where the locking pin 23 is located is close to the clearance ramp 224.

[0032] A clearance ramp 224 is provided at the lower part of the side plate 22. The clearance ramp 224 is located at the transition position between the bottom surface and the side surface. The locking pin 23 is close to the clearance ramp 224. The clearance ramp 224 replaces the protruding corner between the bottom surface and the side surface. When the side plate 22 rotates around the locking pin 23, it can avoid the corner of the side plate 22 from having positional resistance when rotating the adjustment space 216, thereby increasing the range of motion of the side plate 22.

[0033] Optimally, it also includes: positioning plate 7; The positioning plate 7 is installed on the forming frame 1; when the side plate 22 is flipped to disengage from the side opening 212, the side plate 22 abuts against the positioning plate 7.

[0034] The positioning plate 7 is used to provide positioning for the side plate 22. When the side plate 22 rotates to expose the injection cavity 211 at the side opening 212, the positioning plate 7 supports the side plate 22 so that the side plate 22 is supported at the end of the rotation.

[0035] Alternatively, the injection container 2 may further include: a locking screw 24; The side opening 212 is provided with the limiting shaft 213 and the threaded hole 214 on one horizontal side, and the other horizontal side of the side opening 212 is provided with the locking hole 217; when the side plate 22 is limited to the side opening 212, the locking screw 24 passes through the locking hole 217 and is threaded into the side hole 225 of the side plate 22. The side hole 225 extends along the length direction of the side plate 22, and the plate hole 221 extends along the thickness direction of the side plate 22.

[0036] The side hole 225 of the side plate 22 extends along the length of the side plate 22, and the plate hole 221 of the side plate 22 extends along the thickness of the side plate 22. When the side plate 22 is set in the side opening 212, the side opening 212 limits the side plate 22 in different directions. After the locking screw 24 passes through the locking hole 217, it is threaded into the side hole 225 of the side plate 22. After the locking pin 23 passes through the plate hole 221, it is threaded into the threaded hole 214 of the side opening 212. In this way, the side plate 22 is limited in multiple directions, and the fixing stability of the side plate 22 in the side opening 212 is further improved. When it is necessary to remove the side plate 22, it is only necessary to loosen the locking screw 24 and the locking pin 23 to adjust the side plate 22.

[0037] A wax casting processing line is provided with the above-mentioned wax injection molding device.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wax injection molding apparatus, characterized in that, include: Molding frame, injection container, injection nozzle, and extrusion drive assembly; The injection container is mounted on the molding frame; the injection container has an injection chamber, and the input end of the injection nozzle is connected to the injection container; the extrusion drive assembly is mounted on the injection container, and the output end of the extrusion drive assembly delivers wax liquid to the injection nozzle, so that the wax liquid is output through the output end of the injection nozzle; The injection container includes: a container body, a side plate, and a locking pin; The container body is mounted on the molding frame; the container body is provided with the injection cavity, and the injection cavity has a side opening on the side; the side opening is provided with a limiting shaft and a threaded hole extending in the same direction; the side plate is provided with at least a pair of plate holes, the side plate is disposed at the side opening, and the limiting shaft extends into one of the plate holes; the locking pin is provided with a threaded rod and an adjusting head, the threaded rod passes through the other plate hole and is threaded into the threaded hole, and the adjusting head abuts against the surface of the side plate, so that the side plate is detachably limited to the side opening.

2. The wax injection molding apparatus according to claim 1, characterized in that, The threaded rod is provided with a threaded section and a smooth section in sequence toward the threaded hole; the threaded section is threadedly engaged with the threaded hole. The threaded rod is adjusted so that the smooth section is located between the surface of the adjusting head and the side plate, the limiting shaft is disengaged from the plate hole, the side plate moves along the smooth section to disengage from the side opening, and the side plate rotates around the smooth section to disengage from the side opening, so that the injection cavity is exposed from the side opening.

3. The wax injection molding apparatus according to claim 2, characterized in that, Also includes: Chain; One end of the chain is connected to the side plate, and the other end of the chain is connected to the adjustment head.

4. The wax injection molding apparatus according to claim 3, characterized in that, Also includes: Connecting ring; The side plate has protruding posts on its surface; the protruding posts have post holes; the connecting ring connects the post holes and one end of the chain as a whole; the connecting ring is used to adjust the movement of the side plate along the smooth section, and also to adjust the rotation of the side plate around the smooth section.

5. The wax injection molding apparatus according to claim 2, characterized in that, The bottom of the container body is provided with a supporting base plate below the side plate; When the side plate is positioned at the side opening, the bottom surface of the side plate contacts the supporting base plate; When the threaded rod is adjusted so that the smooth section is between the surface of the adjusting head and the side plate, a rotation adjustment space is formed between the smooth section and the molding frame directly below it; the side plate moves to disengage from the supporting base plate and is located in the rotation adjustment space, and the side plate rotates and adjusts in the rotation adjustment space so that the injection cavity is exposed at the side opening.

6. The wax injection molding apparatus according to claim 5, characterized in that, The side plate has a clearance ramp at the transition position between the bottom and the side; the plate hole where the locking post is located is close to the clearance ramp.

7. The wax injection molding apparatus according to claim 6, characterized in that, Also includes: Positioning plate; The positioning plate is installed on the forming frame; When the side plate is flipped to detach from the side opening, the side plate abuts against the positioning plate.

8. A wax injection molding apparatus according to any one of claims 1-7, characterized in that, The injection container also includes: a locking screw; The side opening is provided with the limiting shaft and threaded hole on one horizontal side, and a locking hole is provided on the other horizontal side of the side opening; when the side plate is limited to the side opening, the locking screw passes through the locking hole and is threaded into the side hole of the side plate; The side hole extends along the length direction of the side plate, and the plate hole extends along the thickness direction of the side plate.

9. A wax pattern casting processing line, characterized in that, The device is equipped with a wax injection molding apparatus as described in any one of claims 1-8.

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