Precise investment casting shell making equipment

By designing a fluidized bed and a moving mechanism to drive the wax mold to sway and rotate within the fluidized bed, the problem of low sand coating efficiency in existing equipment is solved, and uniform automatic sand coating of the wax mold surface and efficient processing of multiple wax molds are achieved.

CN224026430UActive Publication Date: 2026-03-24ZHEJIANG WEIMAN PRECISION MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing investment casting shell-making equipment has low efficiency in coating the wax pattern surface with sand, and is mostly operated manually, resulting in low efficiency.

Method used

Design a precision investment casting shell-making device that includes a fluidized bed, a frame, a rotating shaft, and a moving mechanism. The device uses a drive motor to make the wax pattern swing and rotate within the fluidized bed, thereby achieving automatic and uniform sand coating on the surface of the wax pattern.

Benefits of technology

It improves the efficiency of sand coating on the surface of wax models, realizes uniform sand coating and automated operation on the surface of wax models, and can process multiple wax models at the same time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of investment casting shell making equipment, in particular to precision investment casting shell making equipment which comprises a fluidized bed, a straddle frame and a moving mechanism, the fluidized bed can cover sand on the surface of a wax mould when the wax mould rolls, and a first rotating shaft and a second rotating shaft are rotatably connected to the middle position of the straddle frame. A first driving motor and a second driving motor are fixedly installed at the two ends of the crossing frame correspondingly, and the output end of the second driving motor is in transmission connection with one end of the second rotating shaft. According to the wax mould tightening device, through the arrangement of the moving mechanism, the handle part of the wax mould is inserted into the tightening pipe and is fixed and rotated in a reciprocating manner, so that the cradle swings, the wax mould is driven to swing and move on the fluidized bed, and the wax mould is driven to be dragged in quicksand, and meanwhile, the rotating shaft II drives the tightening pipe to rotate through the driving module, the line pipe and the execution module; and the bundling pipe rotates to drive the wax mold to rotate, so that the wax mold rotates when being swung and dragged, all parts on the wax mold can be in contact with quicksand conveniently, and a fluidized bed can conduct uniform and automatic sand coating on the surface of the wax mold conveniently.
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Description

TECHNICAL FIELD

[0001] The utility model relates to investment shell equipment technical field, concretely is a kind of precision investment shell equipment. BACKGROUND

[0002] Investment shell process is a kind of technology for manufacturing precision casting, its core is through wax mold making, coating refractory material, drying and baking etc. SUMMARY

[0003] The utility model discloses a kind of precision investment shell equipment, to solve the problem raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of precision investment shell equipment, comprising:

[0006] Fluidized bed can be covered sand on wax mold surface when wax mold rolls over;

[0007] Cross frame, intermediate position is rotatably connected with shaft one and shaft two, the both ends of the cross frame are respectively fixedly installed with drive motor one and drive motor two, the output end of the drive motor two is transmissionally connected with one end of shaft two, the output end of the drive motor one is transmissionally connected with one end of shaft one, long frame is fixedly connected between the both ends of the cross frame;

[0008] Moving mechanism, there are multiple, multiple moving mechanism equidistantly installed on cross frame, the moving mechanism includes cradle and drive module, one end between the cradle and shaft one is fixedly sleeved, the other end of the cradle is installed with positioning sleeve, the bottom end of the positioning sleeve is rotatably connected with collection tube, the top end of the collection tube is provided with execution module, drive module and execution module are connected with wire tube, the shaft two can be driven to rotate collection tube by drive module, wire tube and execution module, the collection tube can be clamped and fixed to wax mold handle part.

[0009] Further, the bottom end of the collection tube is provided with multiple collection petals, and the outer side wall of the collection tube is screw-connected with an outer rotating sleeve.

[0010] Further in, the execution module includes a ratchet ring and a base, the top end of the convergence pipe is fixedly connected with a fixed pipe, the execution module is fixedly sleeved between the convergence petal, a plurality of rotating bases are fixedly connected on the top surface of the base in a ring type and equidistance, the top end of the rotating base is rotatably connected with a push rod, the middle position of the base is fixedly connected with an edge rod, the inside of the wire pipe is movably sleeved with a wire, one end of the wire is fixedly installed with the top end of the edge rod.

[0011] Further in, the top end of the positioning sleeve pipe is fixedly connected with a limiting frame, the limiting frame is fixedly connected with a second fixed seat, the edge rod is slidably sleeved between the limiting frame.

[0012] Further in, the driving module includes a support and an eccentric wheel, the support is fixed on the long frame, the eccentric wheel is fixedly sleeved between the second rotating shaft, one side of the support is fixedly connected with a first fixed seat, the wire pipe is fixed between the first fixed seat and the second fixed seat, the top end of the support is rotatably connected with a warped plate, the other end of the wire is fixedly connected with one end of the warped plate.

[0013] Further in, the extrusion spring is fixedly connected between the base and the limiting frame, the torsion spring is fixedly connected between the rotating base and the push rod.

[0014] Further in, the top end of the sliding frame is rotatably connected with the other end of the rocker, the moving mechanism further includes a support frame, the support frame is fixedly connected between the cross frame, the top end of the sliding frame is slidably connected with the support frame.

[0015] Compared with the prior art, the wax mold is inserted into the convergence pipe and fixed through the setting of the moving mechanism, reciprocating rotation is carried out, the rocker is swung, the wax mold is swung and moved on the fluidized bed, the wax mold is dragged in the fluid sand, the second rotating shaft drives the convergence pipe to rotate through the driving module, the wire pipe and the execution module, the convergence pipe drives the wax mold to rotate, so that the wax mold rotates when being dragged and swung, so that each part of the wax mold is in contact with the fluid sand, the surface of the wax mold is uniformly and automatically coated with sand by the fluidized bed, and a plurality of wax molds can be coated with sand at the same time through a plurality of moving mechanisms, and the processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016]

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the moving mechanism structure schematic diagram in the utility model;

[0019] Figure 3 It is the driving module structure schematic diagram in the utility model; ​

[0020] Figure 4 is the structural schematic view of the utility model;

[0021] Figure 5 is the structural schematic view of the first placing disc bottom;

[0022] Figure 6 is the structural schematic view of the buffer mechanism.

[0023] In the figure: 100, fluidized bed; 200, cross frame; 210, rotating shaft one; 211, drive motor one; 220, rotating shaft two; 221, drive motor two; 230, long frame; 300, moving mechanism; 310, support frame; 320, rocker frame; 330, wire pipe; 331, wire clue; 340, drive module; 341, support; 342, hinged plate; 343, eccentric wheel; 344, fixed seat one; 350, positioning sleeve; 351, sliding frame; 352, limiting frame; 353, fixed seat two; 360, collecting pipe; 361, outer rotating sleeve; 362, collecting petal; 363, fixed pipe; 370, execution module; 371, ratchet ring; 372, base; 373, edge rod; 374, extrusion spring; 375, push rod; 376, rotating seat. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] Please refer to Figures 1-5The utility model discloses a kind of precision investment casting shell forming equipment, including fluidized bed 100, cross frame 200 and moving mechanism 300, fluidized bed 100 can be covered sand to wax mould surface when wax mould rolls, the middle position of cross frame 200 is rotatably connected with shaft one 210 and shaft two 220, and the both ends of cross frame 200 are respectively fixedly installed with drive motor one 211 and drive motor two 221, the output end of drive motor two 221 is drivingly connected with one end of shaft two 220, the output end of drive motor one 211 is drivingly connected with one end of shaft one 210, and long frame 230 is fixed between the both ends of cross frame 200, the quantity of moving mechanism 300 is multiple, multiple moving mechanism 300 equidistance installation is in cross frame 200, moving mechanism 300 includes cradle 320 and drive module 340, and one end between cradle 320 and shaft one 210 is fixedly sleeved, and the other end of cradle 320 is installed with positioning sleeve pipe 350, and the bottom of positioning sleeve pipe 350 is rotatably connected with collection tube 360, and the top of collection tube 360 is provided with execution module 370, and drive module 340 is connected with wire tube 330 between execution module 370, and shaft two 220 can be driven collection tube 360 rotation by drive module 340, wire tube 330 and execution module 370, and collection tube 360 can be clamped and fixed to wax mould handle part.

[0026] Specifically, wax mould handle part is inserted into collection tube 360 and fixed, drive motor one 211 is speed reducer, and drive motor one 211 drives shaft one 210 reciprocating rotation, so that cradle 320 swings, to drive wax mould to swing and move on fluidized bed 100, to drive wax mould to drag in fluid sand, simultaneously, drive motor two 221 drives shaft two 220 rotation, and shaft two 220 drives collection tube 360 rotation by drive module 340, wire tube 330 and execution module 370, and collection tube 360 rotation drives wax mould rotation, so that wax mould rotates when being swung and dragged, to facilitate each part on wax mould to contact with fluid sand, to facilitate fluidized bed 100 to carry out even and automatic sanding to wax mould surface.

[0027] Embodiment one

[0028] As Figures 3-6As shown, in this embodiment, the bottom end of the gathering tube 360 ​​is provided with multiple gathering flaps 362, and the outer side wall of the gathering tube 360 ​​is screwed with an outer rotating sleeve 361. The execution module 370 includes a ratchet ring 371 and a base 372. The top end of the gathering tube 360 ​​is fixedly connected to a fixing tube 363. The execution module 370 is fixedly sleeved with the gathering flaps 362. The top surface of the base 372 is fixedly annularly with multiple rotating seats 376 at equal intervals. The top end of the rotating seats 376 is rotatably connected to a push rod 375. The middle position of the base 372 is fixedly connected to a prism rod 373. The inside of the conduit 330 is movably sleeved with a thread 331. One end of the thread 331 is fixedly installed with the top end of the prism rod 373. The top end of the positioning sleeve 350 is fixedly connected to... The limiting frame 352 has a fixed seat 353 fixedly connected to it. The rib rod 373 is slidably sleeved with the limiting frame 352. The drive module 340 includes a bracket 341 and an eccentric wheel 343. The bracket 341 is fixed on the long frame 230. The eccentric wheel 343 is fixedly sleeved with the rotating shaft 220. A fixed seat 344 is fixedly connected to one side of the bracket 341. The conduit 330 is fixed between the fixed seat 344 and the fixed seat 353. A rocker 342 is rotatably connected to the top of the bracket 341. The other end of the conduit 331 is fixedly connected to one end of the rocker 342. A compression spring 374 is fixedly connected between the base 372 and the limiting frame 352. A torsion spring is fixedly connected between the rotating seat 376 and the push rod 375.

[0029] In this embodiment, after holding the gathering tube 360, the outer rotating sleeve 361 is rotated, causing multiple outer rotating sleeves 361 to press towards the center, thereby fixing the handle of the wax model. When the second rotating shaft 220 rotates, it drives the eccentric wheel 343 to rotate. The eccentric wheel 343 presses the rocker 342, causing one end of the rocker 342 to cyclically pull and release the thread 331. When the thread 331 is pulled, the thread 331 drives the base 372 to move upward. When the base 372 moves upward, it presses the ratchet ring 371 through the push rod 375, thereby causing the ratchet ring 371 and the gathering tube 360 ​​to rotate and move by an angle. When the rocker 342 releases the thread 331, the compression spring 374 compresses and drives the base 372 and the thread 331 to reset. The push rod 375 resets through the torsion spring, causing the second rotating shaft 220 to rotate continuously, thereby causing the wax model to rotate continuously.

[0030] like Figures 2-4 As shown, in this embodiment, both sides of the outer wall of the positioning sleeve 350 are rotatably connected to a slide 351. The top end of the slide 351 is rotatably connected to the other end of the rocker arm 320. The moving mechanism 300 also includes a support frame 310. The support frame 310 is fixedly connected to the cross frame 200, and the top end of the slide 351 is slidably connected to the support frame 310.

[0031] In the implementation, the positioning sleeve 350 is supported by the support frame 310, thereby supporting the wax mold, avoiding that the weight of the wax mold pulls the rotating shaft 210 to bend.

[0032] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0033] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A precision investment shell forming apparatus, characterized by, The utility model relates to a wax mold sanding device, including: Fluidized bed (100) can be covered to wax mold surface sand when wax mold rolls; Cross frame (200), intermediate position swing joint has pivot one (210) and pivot two (220), two ends of cross frame (200) are fixedly installed drive motor one (211) and drive motor two (221) respectively, the output end of drive motor two (221) is transmission connection with one end of pivot two (220), the output end of drive motor one (211) is transmission connection with one end of pivot one (210), the both ends of cross frame (200) are fixedly connected with long frame (230); Moving mechanism (300), multiple, multiple moving mechanism (300) equidistance installation is in cross frame (200), moving mechanism (300) includes rocker (320) and drive module (340), one end between rocker (320) and pivot one (210) is fixedly sleeved, the other end of rocker (320) is installed with positioning sleeve pipe (350), the bottom of positioning sleeve pipe (350) swing joint has collection tube (360), the top of collection tube (360) is provided with execution module (370), drive module (340) is connected with execution module (370) between wire pipe (330), pivot two (220) can be driven collection tube (360) rotation through drive module (340), wire pipe (330) and execution module (370), collection tube (360) can be clamped fixedly to wax mold handle part.

2. A precision investment casting shell forming apparatus as defined in claim 1 wherein, The bottom of collection tube (360) is equipped with multiple collection petals (362), and the outer side wall of collection tube (360) is screw-connected with an outer rotating sleeve (361).

3. A precision investment casting shell forming apparatus as defined in claim 1 wherein, The execution module (370) includes a ratchet ring (371) and a base (372), the top of the collection tube (360) is fixedly connected with a fixed tube (363), the execution module (370) is fixedly sleeved between the collection petals (362), a plurality of rotating seats (376) are fixedly connected to the top surface of the base (372) in a ring shape at equal intervals, a push rod (375) is rotatably connected to the top end of the rotating seat (376), a rib rod (373) is fixedly connected to the middle position of the base (372), a wire (331) is movably sleeved in the wire pipe (330), one end of the wire (331) is fixedly installed with the top end of the rib rod (373).

4. A precision investment casting shell forming apparatus as defined in claim 3 wherein, The top of the positioning sleeve pipe (350) is fixedly connected with a limiting frame (352), the limiting frame (352) is fixedly connected with a second fixing seat (353), the rib rod (373) is slidably sleeved between the limiting frame (352).

5. A precision investment casting shell forming apparatus as defined in claim 4 wherein, The driving module (340) comprises a support (341) and an eccentric wheel (343), the support (341) is fixed on the long frame (230), the eccentric wheel (343) is fixedly sleeved between the rotating shaft two (220), one side of the support (341) is fixedly connected with a fixed seat one (344), the wire pipe (330) is fixed between the fixed seat one (344) and a fixed seat two (353), the top of the support (341) is rotatably connected with a rocker (342), the other end of the wire (331) is fixedly connected with one end of the rocker (342).

6. A precision investment casting shell forming apparatus as defined in claim 5 wherein, The fixed seat (372) and the limiting frame (352) are fixedly connected with an extrusion spring (374), and the rotating seat (376) and the push rod (375) are fixedly connected with a torsion spring.

7. A precision investment casting shell forming apparatus as defined in claim 1 wherein, The outer side wall of the positioning sleeve (350) is rotatably connected with a sliding frame (351) on both sides, and the top of the sliding frame (351) is rotatably connected with the other end of the rocker (320), the moving mechanism (300) further comprises a support frame (310), the support frame (310) is fixedly connected between the cross frame (200), and the top of the sliding frame (351) is slidably connected with the support frame (310).