Precoated sand production mold
By designing the mold structure and vibration components, the gap problem of coated sand molds was solved, achieving efficient production and convenient material feeding, and improving the production quality of coated sand molds.
Patent Information
- Application Number
- CN202423287909.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During the production of coated sand molds, the free fall of coated sand particles creates gaps, requiring machine or human intervention and reducing production efficiency.
The design incorporates a mold structure that allows for simultaneous production and flipping of the first and second molds for material feeding. Combined with a vibration assembly, the gap between the coated sand is reduced through the cooperation of active paddles and passive stops. Stable mold flipping is achieved using electromagnets and electromagnetic rings.
This technology reduces gaps and improves quality during the production of coated sand molds, and facilitates material removal from the mold cavity through vibration, thereby increasing production efficiency.
Smart Images
Figure CN223819610U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to film coated sand mould technical field especially relates to a film coated sand production mould. BACKGROUND
[0002] Film coated sand is the main material used in film coated sand casting process. Film coated sand has the advantages of good fluidity and appropriate strength, and the produced sand mold and sand core have clear profile and compact structure, and especially complex sand cores can be manufactured, and the castings are easy to clean;
[0003] During the production of the film coated sand production mould, there are gaps between the film coated sands in the formed mould cavity, mainly due to the complex mould cavity structure and the free falling of the film coated sand particles during pouring into the mould cavity, which are randomly accumulated under the action of gravity. Therefore, machine or human intervention is needed to reduce the gaps between the internal film coated sands during production, and the secondary processing of machine or human intervention will reduce the mould production efficiency. SUMMARY
[0004] The utility model discloses a film coated sand production mould, and the first mould and the second mould can realize the production of the film coated sand mould and the synchronous realization of the production and the subsequent turnover and discharging by the design of the utility model, and the vibration assembly is designed, which can reduce the gaps between the film coated sands during production, improve the production quality of the film coated sand mould, and facilitate the discharging of the film coated sand mould from the mould cavity by vibration, so as to solve the problems in the above background technology.
[0005] In order to achieve the above object, the utility model adopts the following technical scheme: a film coated sand production mould, comprising a rotating drum, the outer surface of the rotating drum is fixedly connected with a first mould and a second mould respectively, and the first mould and the second mould are symmetrically distributed, the side of the first mould and the second mould away from the rotating drum is designed as an open type, a driving shaft is rotatably connected in the rotating drum, the right end of the driving shaft is fixedly connected with a connecting rod, the outer part of the connecting rod is movably connected with a driving piece, the first mould, the second mould and the corresponding position of the driving piece are fixedly connected with passive blocks which are annularly and equidistantly distributed.
[0006] Preferably, the driving piece is internally provided with a mounting groove, a torsional spring is arranged in the mounting groove, one end of the torsional spring is fixed with the driving piece, and the other end is fixed with the connecting rod.
[0007] Preferably, the driving piece is composed of two plate bodies with the same shape and size which are fixedly connected by screws, and the adjacent ends of the driving piece and the passive block are designed as a circular arc structure.
[0008] Preferably, the rotary drum is internally embedded with an electromagnet, and the driving shaft is made of magnetic metal material.
[0009] Preferably, the rotary drum is externally sleeved with a fixed plate, and the fixed plate is vertically distributed with the rotary drum, and the rotary drum is rotationally connected with the fixed plate.
[0010] Preferably, an electromagnetic ring is arranged between the rotary drum and the fixed plate, and the electromagnetic ring is externally sleeved with the rotary drum and fixedly connected with the fixed plate.
[0011] Compared with the prior art, the beneficial effects of the present application are as follows: the first mold and the second mold can simultaneously realize the production of the coated sand mold and the synchronous realization of the turnover and discharging after production, and the vibration assembly is designed, which can reduce the gap between the coated sand molds during production, improve the production quality of the coated sand molds, and facilitate the discharging of the turnover coated sand molds from the mold cavity through the vibration mode. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a whole structure view of the present application;
[0013] Figure 2 It is a whole structure back view of the present application;
[0014] Figure 3 It is a whole structure right view of the present application;
[0015] Figure 4 It is a sectional view of the fixed plate and the rotary drum of the present application;
[0016] Figure 5 It is a sectional view of the connecting rod and the driving piece of the present application.
[0017] LEGEND:
[0018] 1, first mold; 2, second mold; 3, rotary drum; 4, fixed plate; 5, passive stop block; 6, active driving piece; 7, driving shaft; 8, electromagnetic ring; 9, connecting rod; 10, electromagnet; 11, mounting groove; 12, torsion spring. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0020] Please refer to Figures 1-5The utility model provides a technical scheme:
[0021] A coated sand production mould, including drum 3, the outer surface of drum 3 is fixedly connected with first mould 1 and second mould 2 respectively, and first mould 1 and second mould 2 are symmetrically distributed, the side of first mould 1 and second mould 2 away from drum 3 is designed as open, driving shaft 7 is rotatably connected in drum 3, the right end of driving shaft 7 is fixedly connected with connecting rod 9, the outer portion of connecting rod 9 is movably connected with driving flabellum 6, first mould 1, second mould 2 and driving flabellum 6 are fixed with passive stopper 5 at annular equidistance distribution position.
[0022] Specifically, the driving flabellum 6 is internally provided with an installation groove 11, and a torsion spring 12 is arranged in the installation groove 11, one end of the torsion spring 12 is fixed with the driving flabellum 6, and the other end is fixed with the connecting rod 9.
[0023] Specifically, the driving flabellum 6 is composed of two plate bodies of the same shape and size which are fixed by screw connection, and the adjacent ends of the driving flabellum 6 and the passive stopper 5 are designed in a circular arc structure.
[0024] Specifically, the drum 3 is internally embeddedly connected with an electromagnet 10, the driving shaft 7 is composed of a magnetic attraction metal material, the control electromagnet ring 8 is powered off, the control electromagnet 10 is powered on and magnetically attracted, the driving shaft 7 is magnetically attracted and fixed with the drum 3, the motor drives the driving shaft 7 to drive the drum 3 to rotate by one hundred and eighty degrees, the second mould 2 is opened upward, and the first mould 1 is opened.
[0025] Specifically, the drum 3 is externally sleeved with a fixed plate 4, and the fixed plate 4 is vertically distributed with the drum 3, and the drum 3 is rotatably connected with the fixed plate 4.
[0026] The electromagnet ring 8 is arranged between the drum 3 and the fixed plate 4, the electromagnet ring 8 is sleeved outside the drum 3 and fixedly connected with the fixed plate 4, the drum 3 is magnetically attracted and fixed with the fixed plate 4 by the controller connected with the electromagnet ring 8 outside to keep the stability of the first mould 1.
[0027] Working principle:
[0028] In operation, first, the fixed plate 4 is fixed with external objects or the ground by bolt connection, then the driving shaft 7 is fixed with the output shaft of the external driving motor by flange and bolt connection, then the open end of the first mold 1 or the second mold 2 corresponds to the coated sand discharge port, then the coated sand is discharged and falls into the mold cavity of the first mold 1, then the motor drives the driving shaft 7 to rotate in the rotary drum 3, the rotary drum 3 is automatically controlled and fixed with the fixed plate 4 by the controller connected with the electromagnetic ring 8 to keep the first mold 1 stable, in the discharging process of the coated sand, the driving shaft 7 drives the connecting rod 9 to rotate, the main driving piece 6 is driven to rotate by the torsion spring 12, the main driving piece 6 is hindered by touching the passive block 5, the internal torsion spring 12 is compressed, at this time, the connecting rod 9 continues to rotate, the main driving piece 6 is passively deflected, when the deflection angle is separated from the passive block 5, the main driving piece 6 is reset and touches and knocks the next passive block 5 under the action of the torsion spring 12, so as to generate a vibration force transmitted to the first mold 1 and the second mold 2, the vibration force transmitted to the first mold 1 reduces the gap between the coated sands, then the coated sand in the first mold 1 is extruded and fastened to form by the external extrusion equipment, then the controller releases the electromagnetic ring 8, that is, the electromagnetic ring 8 is powered off, the electromagnet 10 is controlled to be magnetically attracted, the driving shaft 7 is magnetically attracted with the rotary drum 3, the motor drives the driving shaft 7 to drive the rotary drum 3 to rotate one hundred and eighty degrees, the open end of the second mold 2 is upward, the open end of the first mold 1 is downward, then the above steps are repeated, at this time, the second mold 2 also vibrates, at this time, the coated sand formed in the first mold 1 can be discharged and separated from the mold cavity of the first mold 1.
[0029] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A mold for producing coated sand, comprising a rotating drum (3), characterized in that, The outer surface of the rotating drum (3) is fixedly connected to a first mold (1) and a second mold (2), and the first mold (1) and the second mold (2) are symmetrically distributed. The side of the first mold (1) and the second mold (2) away from the rotating drum (3) is designed as an opening. The rotating drum (3) is rotatably connected to a drive shaft (7). The right end of the drive shaft (7) is fixedly connected to a connecting rod (9). The connecting rod (9) is movably connected to an active paddle (6). The first mold (1), the second mold (2) and the active paddle (6) are fixedly distributed in a ring at equal distances. Passive blocks (5) are fixed at corresponding positions.
2. The coated sand production mold according to claim 1, characterized in that, The active paddle (6) has an internal mounting groove (11) and a torsion spring (12) is provided in the mounting groove (11). One end of the torsion spring (12) is fixed to the active paddle (6) and the other end is fixed to the connecting rod (9).
3. The coated sand production mold according to claim 2, characterized in that, The active lever (6) is composed of two plates of the same shape and size connected and fixed by screws, and the adjacent ends of the active lever (6) and the passive stop (5) are designed with an arc shape.
4. The coated sand production mold according to claim 3, characterized in that, An electromagnet (10) is embedded inside the rotating drum (3), and the drive shaft (7) is made of magnetic metal.
5. A coated sand production mold according to claim 4, characterized in that, The rotating cylinder (3) is fitted with a fixing plate (4) on its outside, and the fixing plate (4) is perpendicular to the rotating cylinder (3). The rotating cylinder (3) is rotatably connected to the fixing plate (4).
6. A coated sand production mold according to claim 5, characterized in that, An electromagnetic ring (8) is provided between the rotating drum (3) and the fixed plate (4). The electromagnetic ring (8) is sleeved on the outside of the rotating drum (3) and fixedly connected to the fixed plate (4).