CN219632538U - Sand shooting mechanism of molding machine - Google Patents
Sand shooting mechanism of molding machine Download PDFInfo
- Publication number
- CN219632538U CN219632538U CN202321371083.6U CN202321371083U CN219632538U CN 219632538 U CN219632538 U CN 219632538U CN 202321371083 U CN202321371083 U CN 202321371083U CN 219632538 U CN219632538 U CN 219632538U
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- Prior art keywords
- sand
- hopper
- cylinder
- plate
- molding
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- 239000004576 sand Substances 0.000 title claims abstract description 217
- 238000000465 moulding Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 60
- 239000000463 material Substances 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 2
- 239000003110 molding sand Substances 0.000 abstract description 28
- 238000005056 compaction Methods 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 4
- 239000007924 injection Substances 0.000 abstract description 4
- 238000005266 casting Methods 0.000 abstract description 2
- 244000035744 Hura crepitans Species 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Casting Devices For Molds (AREA)
Abstract
The utility model relates to the technical field of casting equipment, in particular to a sand shooting mechanism of a molding machine. It comprises a sand inlet hopper, a sand cylinder and a sand outlet hopper. The sand inlet hopper and the sand outlet hopper are respectively arranged at two ends of the sand cylinder. The two side surfaces of the sand cylinder are respectively provided with a first air duct and a second air duct. Two sand outlets are arranged at the bottom of the sand outlet hopper. The sand outlet hopper is internally provided with a guide plate, and the guide plate and two sides of the sand outlet hopper form two guide channels. The method comprises the steps of introducing gas into a sand cylinder, and further forming uniformly distributed air pressure in the sand cylinder; the flowing distance of the molding sand is short, the air pressure gradient in the molding sand is low, the molding sand in the sand cylinder is less in compaction force, and the molding sand is easy to shoot, so that a shed and a perforation are avoided; in addition, the V-shaped guide plate is arranged in the sand outlet hopper, so that the sand flow direction is changed, the sand flow direction in the sand injection process is effectively controlled, the sand flow avoids the pudendum position of the pattern refracted on the template, the pattern is protected, and the shadow part of the pattern is filled forcefully.
Description
Technical Field
The utility model relates to the technical field of casting equipment, in particular to a sand shooting mechanism of a molding machine.
Background
In injection molding, the compactness of the molding sand is mainly established in the compacting process. In the sand shooting process of the traditional molding machine, molding sand only enters the sand box along the sand cylinder under the action of dead weight; the sand shooting pressure provided by the sand by the dead weight is low, so that sand shooting operation is not easy, and the conditions of shed building and perforation are easy to generate; in addition, the molding sand directly falls from the sand cylinder to the surface of the pattern in the sand box, and the pattern is easily damaged.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: the sand shooting mechanism of the molding machine solves the technical problems that sand is not easy to shoot, a shed and a perforation are easy to generate, and a template is damaged.
In order to solve the technical problems, the utility model adopts the following technical scheme: a sand shooting mechanism of a molding machine comprises a sand inlet hopper, a sand cylinder and a sand outlet hopper;
the sand cylinder is a box body which is communicated up and down, and the sand inlet hopper and the sand outlet hopper are respectively arranged at the upper end and the lower end of the sand cylinder; a first air duct and a second air duct are respectively arranged on two adjacent side surfaces of the sand cylinder; the first air guide pipe and the second air guide pipe are positioned close to the sand inlet hopper; the pipe diameter of the first air duct is smaller than that of the second air duct;
two parallel sand outlets are formed in the bottom of the sand outlet hopper; the sand outlet hopper is internally provided with a guide plate which is an inverted V-shaped plate, two guide channels are formed on two sides of the guide plate and the sand outlet hopper, and the two guide channels are respectively communicated with the two sand outlet openings.
Further, a sealing seat is arranged between the sand inlet hopper and the sand cylinder; the upper surface of the sealing seat is provided with a through hole matched with the outlet of the sand inlet hopper; the through hole enables the sand inlet hopper to be communicated with the sand cylinder; square grooves penetrating through two sides are formed in the side faces of the sealing seat; the sand hopper sealing plate is connected in a sliding manner in the square groove and seals the through holes, so that materials in the sand hopper cannot enter the sand cylinder; the upper surface of the sand hopper sealing plate is provided with a round hole matched with the through hole, the sand hopper sealing plate is moved, and when the round hole is communicated with the through hole, the sand inlet hopper is communicated with the sand cylinder.
Further, the sealing seat comprises a first sealing plate and a second sealing plate, and the first sealing plate and the second sealing plate are square blocks; the upper surface of the first sealing plate is provided with a first circular groove; an open slot is formed in the surface, opposite to the first sealing plate, of the second sealing plate; the bottom surface of the open slot is provided with a second circular slot which is matched with the first circular slot.
Further, the side face of the sand outlet hopper is provided with an air hole.
Further, stainless steel layers are arranged on the periphery of the inner wall of the sand cylinder.
The utility model has the beneficial effects that: the utility model provides a sand shooting mechanism of a molding machine, which is characterized in that a first air duct and a second air duct are arranged on the side surface of a sand cylinder, so that air is led into the sand cylinder, and air pressure which is uniformly distributed in the sand cylinder is further formed; the flowing distance of the molding sand is short, the air pressure gradient in the molding sand is low, the molding sand in the sand cylinder is less in compaction force, and the molding sand is easy to shoot, so that a shed and a perforation are avoided;
in addition, the V-shaped guide plate is arranged in the sand outlet hopper, so that the sand flow direction is changed, the sand flow direction in the sand injection process is effectively controlled, the sand flow avoids the pudendum position of the pattern refracted on the template, the pattern is protected, and the shadow part of the pattern is filled forcefully.
Drawings
FIG. 1 is a schematic view of a sand shooting mechanism of a molding machine according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a sand hopper of a sand shooting mechanism of a molding machine according to an embodiment of the present utility model;
FIG. 3 is an exploded view of a seal housing of a sand shooting mechanism of a molding machine according to an embodiment of the present utility model;
fig. 4 is a schematic structural view of a second sealing plate of a sand shooting mechanism of a molding machine according to an embodiment of the present utility model.
Description of the reference numerals:
1. a sand inlet hopper; 2. a sand cylinder; 3. a sand outlet hopper; 31. a sand outlet; 4. a first air duct;
5. a second air duct; 6. a deflector; 7. a sealing seat; 71. a first sealing plate;
711. a first annular groove; 72. a second sealing plate; 722. a second annular groove; 8. and (5) sealing the sand hopper.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1-4, the technical scheme adopted by the utility model is as follows: a sand shooting mechanism of a molding machine comprises a sand inlet hopper 1, a sand cylinder 2 and a sand outlet hopper 3;
the sand cylinder 2 is a box body which is communicated up and down, and the sand inlet hopper 1 and the sand outlet hopper 3 are respectively arranged at the upper end and the lower end of the sand cylinder 2; a first air duct 4 and a second air duct 5 are respectively arranged on two adjacent side surfaces of the sand cylinder 2; the first air guide pipe 4 and the second air guide pipe 5 are positioned close to the sand inlet hopper 1; the pipe diameter of the first air duct is smaller than that of the second air duct;
two parallel sand outlets 31 are arranged at the bottom of the sand outlet hopper 3; the sand outlet hopper 3 is internally provided with a guide plate 6, the guide plate 6 is an inverted V-shaped plate, two guide channels are formed on two sides of the guide plate 6 and the sand outlet hopper 3, and the two guide channels are respectively communicated with the two sand outlet openings 31.
From the above description, the beneficial effects of the utility model are as follows: the utility model provides a sand shooting mechanism of a molding machine, which is characterized in that a first air duct 4 and a second air duct 5 are arranged on the side surface of a sand cylinder 2, so that air is led into the sand cylinder 2, and air pressure which is uniformly distributed in the sand cylinder 2 is further formed; the flowing distance of the molding sand is short, the air pressure gradient in the molding sand is low, the compaction force of the molding sand in the sand cylinder 2 is small, the molding sand is easy to shoot, and the building of a shed and perforation are avoided;
in addition, the V-shaped guide plate 6 is arranged in the sand outlet hopper, so that the sand flow direction is changed, the sand flow direction in the sand injection process is effectively controlled, the sand flow avoids the pudendum position of the pattern refracted on the template, the pattern is protected, and the shadow part of the pattern is filled forcefully.
More preferably, a sealing seat 7 is arranged between the sand inlet hopper 1 and the sand cylinder 2; the upper surface of the sealing seat 7 is provided with a through hole matched with the outlet of the sand inlet hopper 1; the through hole enables the sand inlet hopper 1 to be communicated with the sand cylinder 3; square grooves penetrating through two sides are formed in the side face of the sealing seat 7; the sand hopper sealing plate 8 is connected in a sliding manner in the square groove, and the sand hopper sealing plate 8 seals the through holes so that materials in the sand hopper 1 cannot enter the sand cylinder 2; the upper surface of the sand hopper sealing plate 8 is provided with a round hole matched with the through hole, the sand hopper sealing plate 8 is moved, and when the round hole is communicated with the through hole, the sand inlet hopper 1 is communicated with the sand cylinder 2.
From the above description, a structure is disclosed which can control whether the material in the sand inlet hopper 1 enters the sand cylinder 2 or not through the cooperation between the sand hopper sealing plate 8 and the sealing seat 7.
More preferably, the seal seat 7 includes a first seal plate 71 and a second seal plate 72, and the first seal plate 71 and the second seal plate 72 are square blocks; the upper surface of the first sealing plate 71 is provided with a first circular groove 711; an open groove 721 is provided in a surface of the second sealing plate 72 facing the first sealing plate 71; a second annular groove 722 matched with the first annular groove 711 is arranged on the bottom surface of the opening groove 721.
As is apparent from the above description, a specific structure of the sealing plate 5 is disclosed. Meanwhile, a first annular groove 711 and a second annular groove 722 are provided for rotating the seal ring, improving the air tightness between the first seal plate 71 and the second seal plate 72.
More preferably, the side surface of the sand outlet hopper 3 is provided with ventilation holes.
As is apparent from the above description, by the above arrangement, the gas introduced from the top of the sand cylinder can be discharged from the vent holes, accelerating the gas to form a gas flow inside the sand cylinder.
More preferably, the stainless steel layer is arranged around the inner wall of the sand cylinder 2.
As is apparent from the above description, by the above arrangement, the inner wall of the sand cylinder is made not to be easily adhered by the molding sand; effectively avoid because of molding sand adhesion at the inner wall of sand section of thick bamboo and need shut down the condition of clearing up it.
Example 1
The utility model is applied to sand shooting operation of molding sand.
Referring to fig. 1-4, the technical scheme adopted by the utility model is as follows: a sand shooting mechanism of a molding machine comprises a sand inlet hopper 1, a sand cylinder 2 and a sand outlet hopper 3;
the sand cylinder 2 is a box body which is communicated up and down, and stainless steel layers are arranged around the inner wall of the sand cylinder 2; the sand inlet hopper 1 and the sand outlet hopper 3 are respectively arranged at the upper end and the lower end of the sand cylinder 2; a first air duct 4 and a second air duct 5 are respectively arranged on two adjacent side surfaces of the sand cylinder 2; the first air duct 4 and the second air duct 5 are positioned close to the sand inlet hopper 1; the pipe diameter of the first air duct is smaller than that of the second air duct;
a sealing seat 7 is arranged between the sand inlet hopper 1 and the sand cylinder 2; the upper surface of the sealing seat 7 is provided with a through hole matched with the outlet of the sand inlet hopper 1; the through holes enable the sand hopper 1 to be communicated with the sand cylinder 3; square grooves penetrating through the two sides are formed in the side face of the sealing seat 7; the square groove is connected with a sand hopper sealing plate 8 in a sliding way, and the sand hopper sealing plate 8 seals the through holes, so that materials in the sand hopper 1 cannot enter the sand cylinder 2; the upper surface of the sand hopper sealing plate 8 is provided with a round hole matched with the through hole, the sand hopper sealing plate 8 is moved, and when the round hole is communicated with the through hole, the sand inlet hopper 1 is communicated with the sand cylinder 2;
the sealing seat 7 comprises a first sealing plate 71 and a second sealing plate 72, and the first sealing plate 71 and the second sealing plate 72 are square blocks; the upper surface of the first sealing plate 71 is provided with a first circular groove 711; an open groove 721 is provided in a surface of the second sealing plate 72 facing the first sealing plate 71; a second circular ring groove 722 matched with the first circular ring groove 711 is arranged on the bottom surface of the opening groove 721;
two parallel sand outlets 31 are arranged at the bottom of the sand outlet hopper 3; the sand outlet hopper 3 is internally provided with a guide plate 6, the guide plate 6 is an inverted V-shaped plate, two guide channels are formed by the guide plate 6 and two sides of the sand outlet hopper 3, and the two guide channels are respectively communicated with two sand outlet openings 31; the side surface of the sand outlet hopper 3 is provided with an air hole.
The working principle of the utility model is as follows: the sand hopper sealing plate 8 is driven to move in the opening groove 721 by the air cylinder; the positions of the round holes on the sand hopper sealing plate 8 are staggered with the positions of the discharge holes of the sand inlet hopper 1; the materials in the sand inlet hopper 1 cannot enter the sand cylinder 2;
the first air guide pipe 4 and the second air guide pipe 5 are respectively externally connected with air inlet equipment, so that gas is led into the sand cylinder 2; because the sand inlet hopper 1 and the sand cylinder 2 are closed, the gas can only flow along the sand cylinder 2 towards the sand outlet hopper 3;
starting an air cylinder driving the sand hopper sealing plate 8, and enabling the round holes on the sand hopper sealing plate 8 to move to be communicated with the discharge hole of the sand inlet hopper 1, wherein at the moment, the molding sand in the sand inlet hopper 1 enters the sand cylinder 2; the molding sand falls to the guide plate 6 towards the sand outlet hopper 3 under the action of dead weight and gas; because the guide plate 6 is a V-shaped plate, after the molding sand falls onto the surface of the guide plate, the molding sand can reflect a certain angle, and the molding sand cannot directly fall into the sand box; the molding sand enters the flask through the sand outlet 31.
In summary, the beneficial effects of the utility model are as follows: the side surface of the sand cylinder is provided with a first air duct and a second air duct, so that air is guided into the sand cylinder, and air pressure which is uniformly distributed in the sand cylinder is formed; the flowing distance of the molding sand is short, the air pressure gradient in the molding sand is low, the molding sand in the sand cylinder is less in compaction force, and the molding sand is easy to shoot, so that a shed and a perforation are avoided;
in addition, the V-shaped guide plate is arranged in the sand outlet hopper, so that the sand flow direction is changed, the sand flow direction in the sand injection process is effectively controlled, the sand flow avoids the pudendum position of the pattern refracted on the template, the pattern is protected, and the shadow part of the pattern is filled forcefully.
The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.
Claims (5)
1. A sand shooting mechanism of a molding machine comprises a sand inlet hopper, a sand cylinder and a sand outlet hopper; it is characterized in that the method comprises the steps of,
the sand cylinder is a box body which is communicated up and down, and the sand inlet hopper and the sand outlet hopper are respectively arranged at the upper end and the lower end of the sand cylinder; a first air duct and a second air duct are respectively arranged on two adjacent side surfaces of the sand cylinder; the first air guide pipe and the second air guide pipe are positioned close to the sand inlet hopper; the pipe diameter of the first air duct is smaller than that of the second air duct;
two parallel sand outlets are formed in the bottom of the sand outlet hopper; the sand outlet hopper is internally provided with a guide plate which is an inverted V-shaped plate, two guide channels are formed on two sides of the guide plate and the sand outlet hopper, and the two guide channels are respectively communicated with the two sand outlet openings.
2. The molding machine sand shooting mechanism of claim 1, wherein a sealing seat is arranged between the sand inlet hopper and the sand cylinder; the upper surface of the sealing seat is provided with a through hole matched with the outlet of the sand inlet hopper; the through hole enables the sand inlet hopper to be communicated with the sand cylinder; square grooves penetrating through two sides are formed in the side faces of the sealing seat; the sand hopper sealing plate is connected in a sliding manner in the square groove and seals the through holes, so that materials in the sand hopper cannot enter the sand cylinder; the upper surface of the sand hopper sealing plate is provided with a round hole matched with the through hole, the sand hopper sealing plate is moved, and when the round hole is communicated with the through hole, the sand inlet hopper is communicated with the sand cylinder.
3. The molding machine sand shooting mechanism of claim 2, wherein the seal base comprises a first seal plate and a second seal plate, the first seal plate and the second seal plate each being square blocks; the upper surface of the first sealing plate is provided with a first circular groove; an open slot is formed in the surface, opposite to the first sealing plate, of the second sealing plate; the bottom surface of the open slot is provided with a second circular slot which is matched with the first circular slot.
4. The sand shooting mechanism of claim 1 wherein the side of the sand hopper is provided with ventilation holes.
5. The sand shooting mechanism of claim 1 wherein the inner wall of the sand cylinder is surrounded by a stainless steel layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321371083.6U CN219632538U (en) | 2023-05-31 | 2023-05-31 | Sand shooting mechanism of molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321371083.6U CN219632538U (en) | 2023-05-31 | 2023-05-31 | Sand shooting mechanism of molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219632538U true CN219632538U (en) | 2023-09-05 |
Family
ID=87819046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321371083.6U Active CN219632538U (en) | 2023-05-31 | 2023-05-31 | Sand shooting mechanism of molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219632538U (en) |
-
2023
- 2023-05-31 CN CN202321371083.6U patent/CN219632538U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |