CN220295797U

CN220295797U - Precoated sand pouring device

Info

Publication number: CN220295797U
Application number: CN202321446195.3U
Authority: CN
Inventors: 杨启明; 余天; 刘天鸿; 陈浩
Original assignee: Shangrao Lili New Material Technology Co ltd
Current assignee: Shangrao Lili New Material Technology Co ltd
Priority date: 2023-06-07
Filing date: 2023-06-07
Publication date: 2024-01-05
Anticipated expiration: 2033-06-07

Abstract

The utility model relates to the technical field of casting devices and discloses a precoated sand casting device which comprises two dies, wherein the two dies are spliced with each other, a withdrawal template is embedded in the inner side of the middle part of the dies, an installation sleeve is fixedly connected to the outer side of the middle part of the dies, a plug is movably sleeved in the installation sleeve, a water inlet hole is formed in the side face of the plug, one end, close to the inner side of the dies, of the plug extends to the inner side of the withdrawal template, one end, far away from the inner side of the dies, of the plug is connected with an adjusting component, and a limiting piston fixedly connected to the end part of the plug is in sliding clamping connection in the installation sleeve. According to the utility model, through the arrangement of the limiting piston, the die withdrawal plate is driven to move under the cooperation of the plug and the positioning spring, so that the die withdrawal plate can be embedded into the die to keep the inner wall of the die smooth, the die can be gradually propped against under the cooperation of the plug so as to be conveniently demoulded, and the plug can only stably translate and push the casting due to the limitation of the mounting sleeve on the limiting piston.

Description

Precoated sand pouring device

Technical Field

The utility model relates to the technical field of casting devices, in particular to a precoated sand casting device.

Background

The casting technology of the precoated sand comprises cold-method coating, warm-method coating and hot-method coating, wherein at present, the hot-method coating is common, the surface of the precoated sand is coated with molding sand or core sand of a solid resin film, the raw sand is preheated to a certain temperature, the resin is added and melted, the resin is coated on the surface of sand grains by stirring, and finally, urotropine water solution and lubricant are added, and the precoated sand can be obtained through cooling, crushing and screening.

At present, when precoated sand is poured, liquid metal water is directly poured into a shell, and demoulding can be carried out after cooling and shaping, and many of the prior art adopts a static natural cooling mode, so that the cooling rate is slow, most of heat can be dispersed into the air, and the staff is more severe; some of the cooling is performed by using cold water, but the surface where the cooling water can be contacted with the casting is limited because the demoulding is not performed at this time, the cooling water can only be contacted with the casting with a small area at the feed inlet, the cooling below is realized by completely relying on the conduction of the casting to heat, and the efficiency is still poor.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a precoated sand pouring device.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a tectorial membrane sand pouring device, includes two moulds, two the mould splices each other, the inboard embedding in mould middle part has the back template, the outside fixedly connected with installation cover in mould middle part, the inside activity of installation cover has cup jointed the end cap, the inlet opening has been seted up to the side of end cap, the end cap is close to the inboard one end of mould and extends to the back template inside, the end cap is kept away from the inboard one end of mould and is connected with adjusting part, the inside joint that slides of installation cover has fixed connection in the spacing piston of end cap tip, be provided with positioning spring between installation cover and the end cap.

As a preferable technical scheme of the utility model, the adjusting assembly comprises an adjusting rod movably sleeved in the plug, one end of the adjusting rod, which is far away from the water inlet, is fixedly connected with a connecting shaft movably sleeved in the mounting sleeve, and the other end of the connecting shaft penetrates through the mounting sleeve and is fixedly connected with an adjusting button.

As a preferable technical scheme of the utility model, the middle parts of the adjusting rod, the connecting shaft and the adjusting button are provided with communication cavities, and the communication cavities are connected with the cooling water pump through pipelines.

As a preferable technical scheme of the utility model, the plug and the adjusting rod are connected through two mutually meshed threads, and when the adjusting rod controls the plug to move to one side maximum value through the two threads, the die sinking plate is just completely embedded into the die.

As a preferable technical scheme of the utility model, two ends of the positioning spring are respectively connected with the withdrawing template or the limiting piston, and the positioning spring is always in a stretching state.

As a preferable technical scheme of the utility model, the cross section of the die is U-shaped, the bottom of the corner of the die is provided with a first positioning groove, the top of the corner of the die is fixedly connected with a first positioning shaft, and the size of the peripheral diameter of the first positioning shaft is matched with the inner diameter size of the first positioning groove.

As a preferable technical scheme of the utility model, the opposite surfaces of the two mutually spliced dies are provided with a second positioning groove and a second positioning shaft, the second positioning groove is formed at two ends of one die, the second positioning shaft is fixedly connected to two ends of the other die, and the size of the peripheral diameter of the second positioning shaft is matched with the inner diameter size of the second positioning groove.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, through the arrangement of the limiting piston, the die withdrawal plate can be driven to move under the cooperation of the plug and the positioning spring, so that the die withdrawal plate can be embedded into the die to keep the inner wall of the die smooth, the die can be gradually propped against the die to be conveniently demoulded under the cooperation of the plug, and the movement of the plug can be limited due to the limitation of the mounting sleeve on the limiting piston, so that the die withdrawal plate cannot rotate under the influence of the adjusting component, and only can be stably translated, so that the die withdrawal plate can push a casting.

2. According to the utility model, through the adjusting component, a worker can conveniently control the position of the plug, and further under the cooperation of the positioning spring and the limitation of two threads, the inner sides of the die plate and the plug can be flush with the inner side of the die at the same time, so that the inner surface of the die is smooth and flat; and because the plug is controlled, the inner side of the die and the inside of the mounting sleeve can be communicated with each other under the cooperation of the die-withdrawing plate so as to facilitate the injection of cooling water, and the die-withdrawing plate can be abutted against the casting, thereby achieving the effect of easy die-stripping.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic bottom view of the present utility model;

FIG. 3 is a schematic diagram of the present utility model before mold assembly;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a cross-sectional view of the front face of the present utility model;

fig. 6 is a partial schematic view of the mounting sleeve of fig. 5.

In the figure: 1. a mold; 2. removing the template; 3. a mounting sleeve; 4. a plug; 5. a water inlet hole; 6. an adjustment assembly; 61. an adjusting rod; 62. a connecting shaft; 63. an adjusting knob; 7. a positioning spring; 8. a communication chamber; 9. a first positioning groove; 10. a first positioning shaft; 11. a second positioning groove; 12. a second positioning shaft; 13. and limiting the piston.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 6, the utility model provides a precoated sand pouring device, which comprises two dies 1, wherein the two dies 1 are mutually spliced, a withdrawal template 2 is embedded in the inner side of the middle part of the dies 1, an installation sleeve 3 is fixedly connected to the outer side of the middle part of the dies 1, a plug 4 is movably sleeved in the installation sleeve 3, a water inlet 5 is formed in the side surface of the plug 4, one end, close to the inner side of the dies 1, of the plug 4 extends into the withdrawal template 2, one end, far away from the inner side of the dies 1, of the plug 4 is connected with an adjusting component 6, a limiting piston 13 fixedly connected to the end part of the plug 4 is in sliding clamping connection in the installation sleeve 3, and a positioning spring 7 is arranged between the installation sleeve 3 and the plug 4; due to the arrangement of the limiting piston 13, the die-withdrawing plate 2 is driven to move under the cooperation of the plug 4 and the positioning spring 7, so that the die-withdrawing plate can be embedded into the die 1, the inner wall of the die 1 is smooth, the die-withdrawing plate can be gradually propped against under the cooperation of the plug 4 so as to be demolded, and the movement of the plug 4 can be limited due to the limitation of the limiting piston 13 by the mounting sleeve 3, so that the die-withdrawing plate cannot rotate under the influence of the adjusting component 6, and only stable translation can be realized.

The adjusting assembly 6 comprises an adjusting rod 61 movably sleeved in the plug 4, one end of the adjusting rod 61 away from the water inlet 5 is fixedly connected with a connecting shaft 62 movably sleeved in the mounting sleeve 3, and the other end of the connecting shaft 62 penetrates through the mounting sleeve 3 and is fixedly connected with an adjusting button 63; through adjusting the subassembly 6, can make things convenient for the staff to control the position of end cap 4.

Wherein, the middle parts of the adjusting rod 61, the connecting shaft 62 and the adjusting button 63 are provided with a communication cavity 8, and the communication cavity 8 is connected with a cooling water pump through a pipeline; due to the control of the plug 4, the inner side of the die 1 and the inner part of the mounting sleeve 3 can be mutually communicated under the cooperation of the die-stripping plate 2, so that cooling water can be conveniently injected, and the die-stripping plate 2 can be abutted against a casting, so that the effect of easily stripping is achieved.

Wherein, the plug 4 and the adjusting rod 61 are connected through two mutually meshed threads, and when the adjusting rod 61 controls the plug 4 to move to one side maximum value through the two threads, the die sinking plate 2 is just completely embedded into the die 1; due to the cooperation of the positioning spring 7 and the limitation of two threads, the inner sides of the die sinking plate 2 and the plug 4 can be flush with the inner side of the die 1 at the same time, so that the inner surface of the die is smooth and flat.

Wherein, the both ends of positioning spring 7 are connected with drawing die plate 2 or spacing piston 13 respectively, and positioning spring 7 is in tensile state all the time.

The cross section of the die 1 is U-shaped, a first positioning groove 9 is formed in the bottom of the corner of the die 1, a first positioning shaft 10 is fixedly connected to the top of the corner of the die 1, and the size of the peripheral diameter of the first positioning shaft 10 is matched with the inner diameter size of the first positioning groove 9; due to the arrangement of the first positioning groove 9 and the first positioning shaft 10, the longitudinal stacking of a plurality of dies 1 can be facilitated, and the connection of the dies 1 with the bottom die and the top die is also facilitated.

The two mutually spliced opposite surfaces of the two dies 1 are provided with a second positioning groove 11 and a second positioning shaft 12, the second positioning groove 11 is formed in two ends of one die 1, the second positioning shaft 12 is fixedly connected to two ends of the other die 1, and the size of the peripheral diameter of the second positioning shaft 12 is matched with the inner diameter size of the second positioning groove 11; due to the arrangement of the second positioning groove 11 and the second positioning shaft 12, the connection between the two dies 1 to be spliced can be facilitated, and due to the fact that the openings of the first positioning groove 9 and the second positioning groove 11 are downward or obliquely downward, accumulation of dust can be effectively avoided, and connection tightness between the adjacent dies 1 and the top bottom die is ensured.

The working principle and the using flow of the utility model are as follows:

the two dies 1 are spliced in pairs through a second positioning groove 11 and a second positioning shaft 12, the two dies 1 spliced in pairs are integrally stacked through a first positioning groove 9 and a first positioning shaft 10, then a top die with a feeding hole is arranged at the top of the two dies 1 at the uppermost part through the first positioning groove 9 and the first positioning shaft 10, and finally the whole die is buried in a sand box for standing;

injecting molten metal through a feed port at the top of the top die, rotating an adjusting button 63 after solidification to drive a plug 4 through a connecting shaft 62 and an adjusting rod 61, enabling the plug 4 to move left and right under the adjustment of an adjusting component 6 due to the limitation of a mounting sleeve 3 on a limiting piston 13, enabling the front end of the plug 4 to be separated from a die-withdrawing plate 2 when the plug 4 moves for a certain distance, and directly cooling the surface of a casting in the inner side area of the die 1 by injecting cooling water through a communicating cavity 8 so as to rapidly shape the casting; then, the plug 4 can be reversely moved by reversely rotating the adjusting knob 63, so that the die 1 can be gradually separated under the action of the reaction force by pushing the casting through the die withdrawing plate 2, and the die can be easily removed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tectorial membrane sand pouring device, includes two moulds (1), its characterized in that: two mould (1) splice each other, the inboard at mould (1) middle part is embedded to have and moves back template (2), the outside fixedly connected with installation cover (3) at mould (1) middle part, the inside activity of installation cover (3) has cup jointed end cap (4), inlet port (5) have been seted up to the side of end cap (4), end cap (4) are close to the inboard one end of mould (1) and extend to move back inside template (2), the inboard one end of mould (1) is kept away from to end cap (4) is connected with adjusting part (6), the inside joint of sliding of installation cover (3) has spacing piston (13) fixedly connected with end cap (4), be provided with positioning spring (7) between installation cover (3) and end cap (4).

2. A precoated sand casting apparatus as defined in claim 1, wherein: the adjusting component (6) comprises an adjusting rod (61) movably sleeved in the plug (4), one end, away from the water inlet hole (5), of the adjusting rod (61) is fixedly connected with a connecting shaft (62) movably sleeved in the mounting sleeve (3), and the other end of the connecting shaft (62) penetrates through the mounting sleeve (3) and is fixedly connected with an adjusting button (63).

3. A precoated sand casting apparatus as defined in claim 2, wherein: the middle parts of the adjusting rod (61), the connecting shaft (62) and the adjusting button (63) are respectively provided with a communication cavity (8), and the communication cavities (8) are connected with the cooling water pump through pipelines.

4. A precoated sand casting apparatus as defined in claim 2, wherein: the plug (4) is connected with the adjusting rod (61) through two mutually meshed threads, and when the adjusting rod (61) controls the plug (4) to move to one side maximum value through the two threads, the die withdrawing plate (2) is just completely embedded into the die (1).

5. A precoated sand casting apparatus as defined in claim 1, wherein: the two ends of the positioning spring (7) are respectively connected with the die returning plate (2) or the limiting piston (13), and the positioning spring (7) is always in a stretching state.

6. A precoated sand casting apparatus as defined in claim 1, wherein: the profile of mould (1) is the U type, first constant head tank (9) have been seted up to the bottom of mould (1) corner, the top fixedly connected with of mould (1) corner first location axle (10), the size of first location axle (10) periphery diameter and the internal diameter size looks adaptation of first constant head tank (9).

7. A precoated sand casting apparatus as defined in claim 1, wherein: the two mutually spliced opposite surfaces of the die (1) are provided with a second positioning groove (11) and a second positioning shaft (12), the second positioning groove (11) is formed in two ends of one die (1), the second positioning shaft (12) is fixedly connected to two ends of the other die (1), and the size of the peripheral diameter of the second positioning shaft (12) is matched with the inner diameter size of the second positioning groove (11).